CN107197653B

CN107197653B - Intelligent mower with front universal wheel matched with half-edge guide groove to enlarge mowing area

Info

Publication number: CN107197653B
Application number: CN201710451367.9A
Authority: CN
Inventors: 苏克; 叶晓波; 严长明; 朱典悝; 王云峰; 吴军; P·G·安祺莉卡
Original assignee: Ningbo Daye Garden Equipment Co Ltd
Current assignee: Ningbo Daye Garden Equipment Co Ltd
Priority date: 2017-06-12
Filing date: 2017-06-12
Publication date: 2019-12-17
Anticipated expiration: 2037-06-12
Also published as: CN107197653A

Abstract

An improved intelligent mower with a front universal wheel and a half-edge guide groove which are matched to enlarge the mowing area is characterized in that a pin ball (233a) arranged at the root of a charging pin (233) is arranged on a concave half-ball seat, and coaxial pins of the left pin ball and the right pin ball are respectively positioned in a U-shaped groove of the left pin ball and the right pin ball so as to facilitate micro-motion follow-up and impact resistance; the middle groove of the narrow guide rail (233c) which is symmetrical along the advancing line of the unilateral front universal wheel is arranged on one side of the bottom plate which is horizontally paved on the ground surface, only the front universal wheel can be accommodated in the middle groove, the left and right width of the narrow guide rail is less than half of the width of the mower, each guide rail is in a horn mouth shape containing a cubic curve section of a function curve of high mathematics and the like, so that the impact is reduced, the guide is performed, the mowing area is enlarged, and the phenomenon that the left half between the two original wide guide rails is a cutting missing area or the left half is a cutter damaging area or the left half is a guide damaging area is avoided. The problem of reliable plug charging in a micro follow-up manner is solved.

Description

Intelligent mower with front universal wheel matched with half-edge guide groove to enlarge mowing area

Technical Field

The invention relates to a lawn mower for trimming lawns in places such as courtyards, parks, roads and the like, in particular to an intelligent lawn mower with a charging assembly capable of automatically inserting and pulling a charging pin into and out of a contact piece. On the basis of the multifunctional mower comprising an anti-collision safety device arranged at the front part of a chassis of the mower, a logarithmic spiral brake with anti-collision safety function and an automatic stop function, a low-vibration leaf blowing and sucking machine, a dust bag bracket, a pricking port, a dust outlet of an upper body shell, a soft sheet, a blade wheel, a blade edge, a circuit, a safety device, a double switch, a noise elimination, vibration reduction and a honeycomb, a roller can be turned, a blowing and sucking head, a straw-beating head and a pipe winder with a liquid pipeline for irrigating, fertilizing and spraying pesticide are comprehensively arranged, and the intelligent mower with the contact piece assembly capable of being inserted and pulled out through an automatic charging pin, a front universal wheel and a half-edge guide groove are improved again to be matched with each other to enlarge the mowing area, so that the intelligent mower can be plugged and charged in a micro-following manner.

Background

Lawn mowers are widely used to mow grass in a manner selected by one's preference. When some operating pedestrians like and are used to the mower, the upper handrail of the rear half part has a slightly larger strength and has a feeling of leaning and pressing down, so that the possibility of tilting and hanging the front wheel is increased invisibly; the design of the mower should also take care of the comfort and convenience of the user as much as possible. The mower using the gasoline engine has less front warping due to heavier engine. However, the front warp phenomenon, particularly the front warp phenomenon of the left front wheel, also occurs. For an electric mower, because the motor is lighter than the engine, and the center shaft of the motor drives the mowing knife with a large rotating diameter and cannot be installed far forward, the front wheel of the electric mower is lifted more frequently. Furthermore, according to the relevant standards, for example, GB 4706.78-2005; IEC 60335-2-77-2002; the EN836-1997 standards, especially EN 836/A3-2004/4.2.3.2.1-4.2.3.2.3.3, all have specification requirements of 16.7 degrees of slope. The sand kettle with the counterweight is arranged at the front part of the whole machine, the chassis is required to be changed for installation, three hole sites are required to be arranged, and sand and stones are required to be added, which is troublesome. The counterweight is heavy, and the transportation cost is also high. In addition, the common grass trimmer does not need a knife, and a string excited motor drives a grass trimming head with nylon wires. When the grass trimmer is assembled and started to rotate the nylon thread in the reel 25-3, grass can be cut. When the thread is short, an operator presses the button, the reel aluminum head 25-3b hits the ground, the reel spring 25-1 is compressed, the reel 25-3 rotates, and the nylon thread 134 in the reel rotates through the thread eye insert piece 25-6 to be paid off. The excess length of the paid out thread is trimmed by blade 127. When not in use, the blade sleeve 126 is placed on the blade 127, and has a protective function. The grass cutting head has good grass cutting effect and saves electricity compared with a knife, but cannot be arranged on a common grass cutter with wheels because of the need of pressing and paying off the grass by a pier.

The common lawn mower adopts an engine widely, has wide range of motion, but consumes oil and exhausts gas to pollute the environment. Some operating walkers prefer to use electric mowers, but the widespread adoption of such mowers is limited by the power supply. Just like automobiles need gas stations, electric mowers also need charging stations, and the market needs an improved intelligent mower with an automatic charging pin inserted and pulled out contact piece assembly so as to be reliably and automatically plugged and charged; however, the problem of how to plug and pull the battery in a micro follow-up manner is a difficult problem, the invention innovatively considers that the pin ball is micro follow-up as if the battery is lingering for a long time like a ghost, and the experience of the high worker SENI.ENGI of Switzerland and international cooperation are used, so that the improved intelligent mower with the contact piece assembly capable of automatically inserting and pulling the charging pin out is worried and fortunate. There are also many improvements, if imagine a device, such as the central pull string pulls the rotating rod, if can make the reel aluminum head pay off, can use the light and handy head of beating grass on the lawn mower and save electricity; if the balance weight does not use a sand pot or an improved water tank, a lithium battery is arranged on the lawn mower; preferably, a free-entry reel is provided; the damping of the original winder is sometimes unreliable, and the occasional failure of the winder is known to be a world problem; fortunately, the winding device which is just worked out and stops along with pulling can be used as a winder, so that a novel offset series excitation motor electric mower which is a mower with a grass mowing head and the winder can be produced. The comprehensive effects of the fertilizer are that the application range is expanded, the soil moisture conservation and safety of the pressed grass are enhanced, and the oil and the environment are saved.

Although the mower stops rotating within three seconds, the reliability of the original brake is not durable; the belt wheel still slips due to the braking motor; some radial centrifugal throwing blocks do not have multiple teeth, and although the test is passed, the radial centrifugal throwing blocks slip after long-term polishing; during the braking process, the radial direction still has the centrifugal blocking effect, and if the radial direction is changed into the axial direction, the braking is fast without the centrifugal blocking; the original brake wants to be suddenly locked, but is unfavorable because of accumulated energy, if the brake is changed into a slack brake, the brake is good, and the function wave disc brake intermittently looses the energy to facilitate the braking, and prolongs the service life of the friction block. Steel hard objects are sometimes hidden in the lawn, and the lawn mower is occasionally damaged by the steel hard objects or overturned; if the outer rubber coating of the movable support is collided in the front direction, the sliding rod of the movable support retracts to trigger the limit switch, and collision avoidance can be facilitated. The electric mower has the advantages of collision prevention, safety, brake guarantee, optional mowing and grass cutting, and large area due to the existence of electric wires, is easy to do and is always a long-standing problem.

The reason why the safety is affected by the fact that long wires scattered on the ground are carelessly stepped on by feet or pressed by wheels when the electric mower mows grass back and forth by using the winder? is also used, the reason why the safety is affected by the fact that the wires are knotted or tangled so that the wires are not long enough to suspend mowing or the wires are manually managed is also why the potential safety hazard is increased when the winder is mounted on the electric mower?. people who use the electric mower know that grass is frequently missed during mowing and is recutted, particularly when a tree is mixed with a lawn in a complicated environment, the winder needs to be pushed for a plurality of steps or pushed for a plurality of times left and right for repeated mowing, if the winder is placed at a long distance, the wires near the mower cannot be timely pulled along with the electric mower to synchronously go in and out, the winder falls off on the ground, the winder has the danger of being stepped on or pressed by the wheels, or the winder cannot timely go in and go out of the wires.

If the winder is changed into a water pipe, the pipe winder is the pipe winder; most of the lawn mowers are idle in one year, and if the lawn mowers are provided with pipe winders, water can be filled in the pipes to irrigate; the water filled in the pipe can prevent insects; the fertilizer filled in the pipe can be fertilized by water energy; if one machine can be used for multiple purposes.

Suction blowers are widely used to clean leaves in a manner selected by people's preference. Some operating pedestrians like and are used to the blowing and sucking machine, especially when meeting corners, blowing and sucking are carried out by looking ahead and turning the angle, and if the roller contacting the ground is changed into a steerable roller, the operation is convenient; the height of the operating walker is different, the operating walker is used to adopt different working angles, the auxiliary handle is required to be adjustable, and the original fixed auxiliary handle is not symmetrical. The safety of the power supply is not suitable for one blowing and sucking machine due to the fact that multiple paths are supplied, the circuit in the original blowing and sucking machine is lack of overload protection, and if the safety and a double switch are added, the blowing and sucking machine is safer. Low vibration and low noise, and further optimization is necessary; if the foam plastic for increasing and reducing vibration outside the motor and the damping and silencing materials and the honeycomb structure are added at multiple positions of the blowing and sucking machine, a certain curative effect can be achieved; the vibration and noise of the grass mower are caused by the precision and form and position tolerance of power and tools, and if an improved method for improving the coaxiality of the motor and the blowing impeller and measuring the dynamic balance is adopted, the improvement is expected, but the problem that the blowing and sucking machine is low in vibration and low in noise is really a long-standing old and difficult problem. The dust collection bag bracket and the tying opening are more and easy to slide, and need to be improved; a dust outlet of an upper shell of the blowing and sucking machine is provided with a soft sheet sometimes especially in strong wind during reversing; the blade wheel is provided with a cutting edge, which has an effect on cutting large inhalants which are easy to block; and if the single extension pipe is changed into a multi-extension pipe or a flexible folding pipe, the volume can be further reduced, and the transportation efficiency is improved. The blowing and sucking machine is always heavy when being held by an operating walker, the gathering bag is small, the power battery is small, and the working time is short. If the blowing and sucking machine is placed on the mower, the technical progress from carrying to rolling with wheels is achieved, the burden of people is relieved, and the grass collecting bag on the mower can be much larger and the continuous working time is long.

Disclosure of Invention

The invention relates to a lawn mower for trimming lawns in places such as courtyards, parks, sides of roads and the like, in particular to a novel offset series excited motor electric mower which is a mower with a grass mowing head and a winder, and is mainly characterized in that three assemblies are additionally arranged on a common lawn mower, namely a storage battery bracket assembly, a cutting device assembly for pulling a rotating rod and the grass mowing head, and the winder assembly; the bracket is provided with a bracket which can be movably drawn out and is used for placing the storage battery at the front part of the lawn mower; the cutting device is arranged in the middle of the mower and can be divided into two types, wherein one type is a plastic cutter holder provided with a fan on a mowing knife in the center of the mower, and the other type is that a nylon wire of a reel in a rotating wheel on the original mowing machine is transplanted to the mower and is dragged by a series excitation motor which is not arranged in the center of the mower but is offset; the center shaft is possible to be hollow only when the offset series excited motor gives way to the position of the center shaft, and the center stay wire can be used for pulling the rotating rod to lead the reel to pay off, thereby breaking the history that the nylon wire cutting device with the grass mowing head cannot be used for the mower; and because the winding device with various damping mechanisms is adopted, various complementation is more reliable, namely, the winding device which is complemented by the centrifugal slow retraction device, the side piston damping device, the position lock and the ball position lock, the reverse damping mechanism and the pipe arranger angle groove type damping mechanism greatly increases the mowing range of the common electric mower with electric wires. Perhaps, the novel technical field of the mower with the grass mowing head and the reel is created; aims to enlarge the mowing range by adding a lithium battery or lengthening an electric wire, strengthen the balance weight to be beneficial to pressing grass and preserving soil moisture and the safety of a slope at 16.7 ℃, save oil and energy without using an internal combustion engine and be beneficial to RoHS emission and environmental protection. The main improvement is that the front part of the lawn mower is provided with a support which can be movably drawn out and is used for placing a storage battery; the cutting device arranged in the middle of the mower is dragged by a biased series motor which is not arranged in the center; the cutting device can be divided into two types, one type is a knife with a fan plastic knife holder, and the other type is that the nylon wire of a reel in a rotating wheel on the original grass mower is transplanted to the grass mower; because the offset series excited motor gives way to the position of the central shaft, the central pull wire of the invention can be used for pulling the rotating rod, so that the aluminum head of the reel can be paid off, thereby breaking the history that the nylon wire cutting device of the grass cutting head can not be used for the mower; and because the winding device with various damping mechanisms is adopted, namely the winding device is complemented by a centrifugal slow retraction device, a side piston damping device, a position lock, a reverse resistance mechanism, a movable plate pressure spring damping mechanism and a pipe arranger angle groove type damping mechanism, the mowing range of the common electric mower with the electric wire is greatly increased. Perhaps speaking, the new technical field of the mower with the grass mowing head and the reel is created. Just as the dead silkworms are endless in spring, the improvement is perfect and endless; further improving anti-collision security and pursuing to ensure braking; when the front part collides with the outer rubber coating of the movable support to retract the sliding rod of the movable support, the limit switch is triggered to prevent collision; the function wave disc brake is an uneven disc which fluctuates according to wave shape height so as to facilitate relaxation braking, and the parameter of the function wave disc brake is computer molding and can be manufactured in batch; the brake is also provided with an axial shaft disc of a friction block which gradually rises according to a function; and a belt wheel with internal multiple internal teeth; and the radial centrifugal swing block with the multi-arc teeth has the advantages of enhancing the anti-collision safety and braking effect, being selectable for mowing and grass cutting and having an oversized moving area for the electric mower.

Because the invention is based on the improved series excited motor electric mower and then the anti-collision brake is used, for the purpose of clarification, firstly the electric mower with the grass mowing head and the reel is described, and then the anti-collision brake is described, and the technical scheme adopted by the electric mower for solving the technical problems is as follows:

A series excited motor electric mower is a mower with both a grass cutting head and a winder, and is mainly characterized in that three assemblies are additionally arranged on a common lawn mower, namely a storage battery bracket assembly, a cutting device assembly which is dragged by a series excited motor and is arranged in the middle of the mower, provided with a pulling rotating rod and the grass cutting head, and a winder assembly; the bracket is provided with a bracket which can be movably drawn out and is used for placing the storage battery at the front part of the lawn mower; the cutting device comprises two cutting devices, wherein one cutting device is that a cutter holder of a plastic fan is arranged on a mowing knife at the center of the mower so as to guide wind and insulate; the other is that the nylon wire of the reel in the rotating wheel of the original grass trimmer is transplanted to the grass trimmer, and the center shaft is possibly hollow due to the position of the center shaft given out by the offset series excitation motor, and the center pull wire of the invention can be used for pulling the rotating rod to pay off the reel, thereby breaking the history that the grass cutting head nylon wire cutting device can not be used for the grass trimmer; then the mower is provided with a reel which can be freely fed in and out, so that the mower with the mowing head and the reel is formed, and the mower is called as a series motor electric mower according to a common calling method; the storage battery bracket assembly consists of a fixed sliding seat (90c) fixedly arranged on a bracket seat of a mower chassis, a movable bracket (90) which can be pulled out and is provided with a sliding rod (90a) and a limiting seat (90b), and a storage battery with a charger and an inverter, wherein the sliding rod (90a) of the movable bracket (90) is sleeved in the fixed sliding seat (90c) of the bracket seat, and the storage battery can be placed on the movable bracket after being pulled out and positioned by the limiting seat (90 b); the cutting device assembly arranged in the middle of the electric mower of the series excited motor is dragged by the offset series excited motor which is not arranged in the center; the cutting device has two types, one is a knife with a fan plastic knife holder, and the other is that a nylon wire of a reel in a rotating wheel of a grass cutting head on the original grass cutting machine is used as a knife on the grass cutting machine; the fan plastic cutter holder (85) is provided with a spline groove (85a) which is matched with a spline (82a) of the large belt wheel (82); the cutter holder 85 is provided with a plurality of fans (85d) and a plurality of small through holes (85c), preferably hexagonal holes; the fan is provided with a cutting edge (85 b); furthermore, the tool holder is preferably made of a non-conductive material, such as plastic, particularly nylon, and fiber; the cutting device assembly provided with the grass cutting head and the central pull wire pulling rotating rod and arranged in the middle of the series excitation motor electric mower consists of an inner frame (76), a series excitation motor (77), a motor belt pulley (84), a belt (83), a large belt pulley (82), a pull wire (81), a pulling rotating rod (78), a thrust bearing (79), a pull rotating frame (80) with a labyrinth and the grass cutting head; the grass cutting head is also called as a coiling grass cutting assembly with a wire box base, and consists of a grass cutting head shell (24-3), a reel spring (25-1), a reel (25-3), a nylon thread (134), a protective coil (123), a thread eye inserting piece (25-6) and a wire box upper cover (25-7); the blade (127) is arranged on the circumference of the cutting disc of the mower, and the blade sleeve (126) is placed on the blade (127) when the mower is not used; the nylon thread (134) is characterized in that the cross section of the nylon thread is provided with a notch (34a), at least one or more, for example 3; the notches are spiral along the nylon line and are evenly distributed along the circumference in equal parts; the notches are triangular; the inner frame (76) is arranged above a cutting disc of a chassis of the mower, a motor belt pulley (84) is arranged on a shaft of an offset series motor (77), and a large belt pulley (82) with a driving central line at the center of the cutting disc of the chassis is arranged through a belt (83); the big belt pulley (82) drives the grass mowing head; the big belt pulley (82) is sequentially connected with the grass mowing head shell (24-3), the thread eye inserting piece (25-6) and the thread box upper cover (25-7), a winding wheel (25-3) is pressed in the grass mowing head shell (24-3) through a winding wheel spring (25-1), and a nylon thread (134) and a protective coil 123 are arranged on the winding wheel (25-3); the pull rotating rod 78 is connected with the reel (25-3) or fixedly connected with the reel, or connected with a shaft collar, or connected with a reverse screw thread, or connected with a thrust bearing; the other end of the pulling rotating rod (78) is connected with a pulling rotating frame (80) with a labyrinth through a thrust bearing (79), one end of a steel wire rope of the pull wire (81) is sleeved on the pulling rotating frame (80), and the other distal end of the pull wire is connected with a pay-off operating lever (81b) of the mower; the drawing and rotating frame (80) with the labyrinth is characterized in that the drawing and rotating frame (80) with the labyrinth is square, a hole (80c) for drawing a rotating rod is arranged below the drawing and rotating frame, a long hole (80b) is arranged on the side surface of the drawing and rotating frame, a central hole (80d) is arranged above the drawing and rotating frame, particularly a labyrinth (80a) is arranged above the drawing and rotating frame, and the drawing and rotating frame is provided with a plurality of bent paths which are connected with the long hole and the central hole so that a drawing wire can be put into; the circuit diagram of the series excited motor electric mower mainly comprises a fuse RC, a switch K, an inductor L3, an inductor L4, a capacitor C, a series excited motor M provided with a winding L1 and a winding L2, a starting button AQ, a handle (75), a diode Di, resistors R1 and R2, a light-emitting tube LED, a winder and a plug socket; it is characterized in that the head of the handle 75 is provided with a hook; the starting button AQ is provided with a long sheet QA2, a pressing block QA1 is connected with the long sheet QA2, and a limit sheet QA 3; when the starting button AQ is pressed down and the handle 75 is pulled, the hook head arranged on the head of the handle 75 presses the pressing block QA1 of the starting button AQ, and the pressing block QA1 of the starting button AQ presses the switch K, so that the starting button AQ can be started; when the door is closed, each part can be elastically reset by pulling the handle 75; the winder of the mower is a winder with various damping mechanisms, namely a winder which is complemented by a centrifugal slow retraction device, a side piston damping device, a position lock and a ball position lock, a reverse damping mechanism and a pipe arranger angle groove type damping mechanism, and is more reliable due to various complementation; the winder is arranged at the front part or the middle part of the mower, and can select several or several damping mechanisms, because the space around the fixed gearwheel (4) can be used for placing a plurality of pinions (9) to connect a plurality of damping mechanisms and position locks; or the storage battery can be used for replacement; optionally, the housing of the reel is assembled by placing on the mower a bracket (19) which is connected by a long pin (18) and can rotate slightly within 180 degrees; the vertical shaft can be arranged at the front part or the middle part of the mower for assembly; the vertical shaft can be provided with a joint of a double-slip ring belt carbon brush; the winder is used for outgoing lines when an operator pushes the mower; when the pulling is stopped, the wire can be locked; when the electric wire is pushed backwards, the wire winder automatically rewinds the electric wire; if the speed is too fast, the slow retraction damper will be strengthened by the various actions of the damping devices, so that the device can move forward and backward freely.

The electric mower is a commonly used garden electric tool, and the electric mower is driven by a motor to drive a main shaft provided with a blade to operate through a belt or a gear and other transmission structures. If the machine needs to be stopped in the operation process, firstly, the power supply is cut off, but the blade still can rotate at a high speed for a period of time under the inertia effect, so that potential safety hazards exist, and therefore a brake device is needed to control the movement of the blade, and personal injury is avoided.

The technical scheme adopted for solving the technical problems of the series motor electric mower with the chassis anti-collision safety belt function wave disc brake and the intelligent mower with the charging assembly capable of automatically inserting and pulling out the charging pin into and from the contact piece is described.

The series-excited motor electric mower with the chassis anti-collision safety belt and the function wave disc brake comprises an anti-collision safety device arranged at the front part of a mower chassis and a series-excited motor electric mower with the brake arranged in the middle of the mower chassis; a mower with a grass cutting head and a reel is characterized in that three assemblies are additionally arranged on a common lawn mower, a pull-out bracket assembly provided with a charging and inverting storage battery is arranged on the assembly, a cutting device assembly provided with a pulling rotating rod and the grass cutting head and arranged in the middle of the mower and dragged by a series motor is arranged, and the reel assembly is arranged; the cutting device assembly comprises a fan plastic cutter holder with noise reduction holes and a cutting edge, and also transplants the nylon wire of a reel in a rotating wheel on the original grass mower to the grass mower; because the offset series excited motor gives way to the position of the central shaft, the central pull wire is used for pulling the rotating rod, and the reel can be used for paying off; the nylon wire is also improved into a noise reduction wire with a triangular spiral groove; a winder assembly, which is provided with a winder comprising a plurality of damping mechanisms and is a winder complemented by a centrifugal slow retraction device, a side piston damping device, a position lock and a ball position lock, a reverse resistance mechanism, a flap pressure spring damping mechanism and a pipe arranger angle groove type damping mechanism; the mower circuit is mainly operated by a starting button AQ and a handle (75), and is additionally provided with a safety device; the support assembly consists of a fixed sliding seat (90c) arranged on a support seat of a mower chassis and a movable support (90) which can be pulled out and is provided with a sliding rod (90a) and a limit (90b), the sliding rod (90a) of the movable support (90) is sleeved in the fixed sliding seat (90c) of the support seat, and after being pulled out and positioned by the limit (90b), the storage battery with the charger and the inverter is placed on the movable support; the cutting device assembly arranged in the middle of the electric mower of the series excited motor is dragged by the offset series excited motor which is not arranged in the center; the cutting device has two types, one is a knife with a fan plastic knife holder, and the other is a grass cutting head; the fan plastic cutter holder (85) is provided with a spline groove (85a) which is matched with a spline (82a) of the large belt wheel (82); the cutter holder 85 is provided with a plurality of fans (85d) and a plurality of small through holes (85c) which are hexagonal holes; the fan is provided with a cutting edge (85 b); then, the tool apron is made of non-conductive materials, namely plastics, and nylon and fibers; the cutting device assembly provided with the grass cutting head and the central pull wire pulling rotating rod and arranged in the middle of the series excitation motor electric mower consists of an inner frame (76), a series excitation motor (77), a motor belt pulley (84), a belt (83), a large belt pulley (82), a pull wire (81), a pulling rotating rod (78), a thrust bearing (79), a pull rotating frame (80) with a labyrinth and the grass cutting head; the grass cutting head is also called as a coiling grass cutting assembly with a wire box base, and consists of a grass cutting head shell (24-3), a reel spring (25-1), a reel (25-3), a nylon thread (134), a protective coil (123), a thread eye inserting piece (25-6) and a wire box upper cover (25-7); the blade (127) is arranged on the circumference of the cutting disc of the mower, and the blade sleeve (126) is placed on the blade (127) when the mower is not used; the inner frame (76) is arranged above a cutting disc of a chassis of the mower, a motor belt pulley (84) is arranged on a shaft of an offset series motor (77), and a large belt pulley (82) with a driving central line at the center of the cutting disc of the chassis is arranged through a belt (83); the big belt pulley (82) drives the grass mowing head; the big belt pulley (82) is sequentially connected with the grass mowing head shell (24-3), the thread eye inserting piece (25-6) and the thread box upper cover (25-7), a winding wheel (25-3) is pressed in the grass mowing head shell (24-3) through a winding wheel spring (25-1), and a nylon thread (134) and a protective coil 123 are arranged on the winding wheel (25-3); the pull rotating rod 78 is connected with the reel (25-3) or fixedly connected with the reel, or connected with a shaft collar, or connected with a reverse screw thread, or connected with a thrust bearing; the other end of the pulling rotating rod (78) is connected with a pulling rotating frame (80) with a labyrinth through a thrust bearing (79), one end of a steel wire rope of the pull wire (81) is sleeved on the pulling rotating frame (80), and the other distal end of the pull wire is connected with a pay-off operating lever (81b) of the mower; the labyrinth pulling and rotating frame (80) is in a square frame shape, a hole (80c) for pulling the rotating rod is arranged below the labyrinth pulling and rotating frame, a long hole (80b) is arranged on the side surface of the labyrinth pulling and rotating frame, a central hole (80d) is arranged above the labyrinth pulling and rotating frame, a labyrinth (80a) is arranged above the labyrinth pulling and rotating frame, and the labyrinth pulling and rotating frame is provided with a plurality of bent paths which are connected with the long hole and the central hole so that a pulling wire can be put into the pulling and rotating frame (80); the cross section of the nylon wire (134) is provided with a notch (34a), and at least one notch is arranged; the notches are spiral along the nylon line and are evenly distributed along the circumference in equal parts; and the notches are triangular; the circuit of the series excited motor electric mower mainly comprises a fuse RC, a switch K, an inductor L3, an inductor L4, a capacitor C, a series excited motor M provided with a winding L1 and a winding L2, a starting button AQ, a handle (75), a diode Di, resistors R1 and R2, a light-emitting tube LED, a winder and a plug socket; the head of the handle 75 is provided with a hook; the starting button AQ is provided with a long sheet QA2, a pressing block QA1 is connected with the long sheet QA2, and a limit sheet QA 3; when the starting button AQ is pressed down and the handle 75 is pulled, the hook head arranged on the head of the handle 75 presses the pressing block QA1 of the starting button AQ, and the pressing block QA1 of the starting button AQ presses the switch K, so that the starting button AQ can be started; when the door is closed, each part can be elastically reset by pulling the handle 75; the series motor electric mower with the chassis anti-collision safety belt function wave disc brake is characterized in that; the anti-collision safety device comprises an anti-collision safety device arranged at the front part of a mower chassis and arranged on a movable support (90) of a support assembly, and consists of a fixed sliding seat (90c) arranged on a support seat of the mower chassis and a movable support (90) which can be pulled out and is provided with a sliding rod (90a) and a limit (90b), wherein the sliding rod (90a) of the movable support (90) is sleeved in the fixed sliding seat (90c) of the support seat and is positioned by the limit (90b) when being pulled out, the anti-collision safety device is characterized in that the movable support (90) is externally covered with rubber, and the limit (90b) is provided with a limit switch so that the limit switch arranged on the limit (90b) is triggered by retracting the sliding rod (90a) of the movable support (90) when the sliding rod (90a) of the movable support (90) collides with the rubber outside in front to form the anti-collision safety device for safety; the brake arranged at the middle part of the mower chassis of the series motor electric mower comprises an inner frame (76) arranged above a cutting disc of the mower chassis, an offset series motor (77) is arranged on the inner frame, a motor belt pulley (84) is arranged on a shaft of the offset series motor (77), and a belt pulley (204) with a central line at the center of the cutting disc of the chassis is driven through a belt (83); an output shaft (203) which is connected with the coaxial center in a clutching way, and a function wave disc brake pad (206) for braking is fixed on the belt wheel (204) by a machine tooth screw (216); a brake fixing plate (207) is fixed on the inner frame (76) and is fixed with a hexagon screw (218) and a hexagon nut (219); a movable brake rod (208) is arranged on the brake fixing plate (207), and is connected through a rivet (215) and can flexibly rotate; the brake rod (208) is provided with a friction plate (209) which is connected by a solid rivet (223), and the friction plate (209) and a function wave disc brake plate (206) for braking on the belt wheel (204) are braked and tensioned by a brake tension spring (210) acting on a brake fixing plate (207) and the brake rod (208); the brake lever (208) is connected to the operating handle by a cable (211) for braking and engaging.

The series motor electric mower with the chassis anti-collision safety belt function wave disc brake after several improvements of anti-collision and braking is characterized in that: the function wave disc brake sheet (206) is an uneven disc sheet with fluctuating height according to wave shape, so as to be beneficial to relaxation and braking effect, and is characterized in that the fluctuating wave shape is according to a sine wave equation: size SDi ═ C × SIN (TRAJPAR × 360 × N); in the formula, the dimension SDi is a dimension digital serial number, SIN is a sine function, and TRAJPAR is a track function; the parameter C is a real number and is assigned between 0.01 and 1.2 according to specific working conditions; c is also known as the wave height; the parameter N is an integer and is selected from 2 to 200 according to specific working conditions, and is also called as wave number; the dimension SDi is the default dimension for computer modeling.

The electric mower with the series motor and the base plate anti-collision safety belt function wave disc brake after the anti-collision and braking is modified and perfected again is characterized in that: the uneven function wave disc brake pad (206) which is beneficial to one-relaxation braking and fluctuates according to wave shape height is characterized in that the wave shape of the fluctuation needs computer simulation and a plurality of experiments for various different models, and the wave height C and the wave number N need to be matched; the wave height C is 0.1-0.9, and the wave number N is 3-99.

The electric mower with the series motor and the base plate anti-collision safety belt function wave disc brake after the anti-collision and braking is modified and perfected again is characterized in that: the uneven function wave disc brake pad (206) which is beneficial to relaxation braking and fluctuates according to wave shape is characterized in that the wave shape of the fluctuation is a trigonometric function, and a trigonometric function or a cosine function, or a cotangent function or a tangent function thereof.

The electric mower with the series motor and the base plate anti-collision safety belt function wave disc brake after the anti-collision and braking is modified and perfected again is characterized in that: the uneven function wave disc brake pad which is beneficial to relaxation braking and fluctuates according to wave shape height is an inverse trigonometric function, and a trigonometric function or an arcsine function, or an arccosine function, or an arctangent function, or an inverse cotangent function of the uneven function wave disc brake pad.

The series-excited motor electric mower with the chassis anti-collision safety belt function wave disc brake after the anti-collision brake is improved is characterized in that: the function wave disc brake pad (206) is an uneven disc with fluctuation according to the wave shape of the function wave to facilitate a relaxation brake effect, and is characterized in that the fluctuation wave shape is according to the function, and the function is a power function, an exponential function or a logarithmic function.

the series-excited motor electric mower with the chassis anti-collision safety belt function wave disc brake after the anti-collision brake is improved is characterized in that: the function wave disc brake sheet (206) is a rugged disc with high and low fluctuation, so as to facilitate the relaxation brake effect, and is characterized in that the rugged disc with high and low fluctuation is provided with a plurality of convexes and concaves, or rough surfaces, or a convex and concave grid, or a plurality of convexes and concaves are crossed with the combination of the function wave waveform.

The series-excited motor electric mower with the chassis anti-collision safety belt function wave disc brake after the anti-collision brake is improved is characterized in that: the brake of the electric mower is provided with an axial shaft disc (204b) with a friction block (204c) which gradually rises according to a function, and the friction block (204c) is characterized by being a friction block which gradually rises along the axial direction, or a parabolic friction block which gradually rises, or an involute friction block which gradually rises, or a plurality of convex-concave surfaces, or rough surfaces, or convex-concave grids, or a combination of a plurality of convex-concave surfaces and a function wave shape which are crossed.

The series-excited motor electric mower with the chassis anti-collision safety belt function wave disc brake after the anti-collision brake is improved is characterized in that: the brake of the electric mower is provided with a belt wheel (204) with multiple internal teeth (204t), and is characterized in that at least one position inside the belt wheel is provided with multiple internal teeth (204 t).

The series-excited motor electric mower with the chassis anti-collision safety belt function wave disc brake after the anti-collision brake is improved is characterized in that: the brake of the electric mower is provided with a radial centrifugal swing block (208t) with a plurality of arc teeth (209t), and is characterized in that at least one position of the radial centrifugal swing block (208t) is provided with a plurality of arc teeth (209 t).

The equation and the modeling method of the technical scheme adopted by the invention for solving the technical problem are as follows:

PRO/ENGINEER WILDFIRE drawing software is adopted to newly set a work catalog, newly set parts and draft 2 concentric circles.

The variable cross-section scanning (Var search Sweep) command is turned on, and the above 2 circles are selected as the scanning track and the reference track.

Drawing a straight line parallel to the 2-circle plane, wherein the length L is (D-D)/2, and the straight line corresponds to the projection line of the circle edge.

Set-up PARAMETER (PARAMETER) 1: real number (real number) of C, which can be assigned between 0.01 and 1, for example 0.3, according to specific working conditions; c is also known as the wave height.

Set-up PARAMETER (PARAMETER) 2: n integer (integer), which may be selected between 2-100 depending on the particular operating condition, e.g. 13; n is also called the wavenumber.

The relationship (relationship) is established, i.e. the sine wave equation of the present invention is:

SDi＝C*SIN(TRAJPAR*360*N)

In the above formula, i is a size number serial number; SIN ═ SINE, SINE function; TRAJPAR, trace function.

Then, the instructions of rotation, combination, materialization and the like are adopted, namely, the modeling is carried out as a function wave disc.

Inputting the equation into a CNC machining center, and manufacturing a steel die by CIMATRO or MASTCAM, or processing by a milling machine, a planer and an electric spark. When the electric spark is used for machining, the formula is input into a CNC machining center, and a tungsten copper electrode is manufactured firstly.

There are various methods of manufacture; or a manufacturing method of die-casting aluminum alloy, and a function wave plate is produced in batch by a die-casting machine with a cold pressure chamber, the base material is aluminum alloy ZL109 or AC8A, and friction-resistant materials are added. Or the manufacturing method of die-casting zinc-aluminum alloy, the mass production of the alloy by a die-casting machine with a hot press chamber, and the base material is added with friction-resistant materials in a disordered way. Or the manufactured functional wave plate forming core is used for manufacturing a mould, a plurality of wax mould cores are manufactured firstly, and then a large amount of functional wave plate castings are cast by using a wax mould casting method.

It should be particularly noted that other waveforms may be used for the functional waveforms of the present invention, such as other mathematical functions such as logarithmic spirals or other somewhat rounded waveforms that are not abrupt fold lines.

in order to make up for the defects caused by the existing mechanism of the blowing and sucking machine, the low-vibration leaf blowing and sucking machine is improved, so that the roller which is in contact with the ground can be turned more conveniently; operating the adjustable auxiliary handle is more called hand; the inner circuit of the blowing and sucking machine is safer; low vibration and low noise are optimized; the dust bag bracket and the tying opening are firm and do not slide off; the dust outlet of the blowing and sucking machine is soft; the blowing impeller and the cutting edge can cut easily blocked objects; the invention provides an improvement of a blowing and sucking machine, which changes a single extending pipe into a plurality of extending pipes or a flexible folding pipe to further reduce the volume.

The mower comprises a blowing-sucking machine, a logarithmic spiral brake and a pipe coiling machine, wherein the pipe coiling machine is provided with a liquid pipeline for watering, fertilizing and spraying the pesticide; four assemblies are additionally arranged on a common lawn mower, namely a bracket assembly of a storage battery provided with a charger and an inverter, a cutting device assembly dragged by a series motor, a pipe winder assembly and a brake assembly; a cutting device assembly; the fan plastic cutter holder with the noise reduction holes and the cutting edge is used for transplanting a nylon wire of a reel in a rotating wheel on the grass mower to the grass mower; because the offset series excited motor gives way to the position of the central shaft, the central pull wire is used for pulling the rotating rod, and the reel can be used for paying off; the nylon wire is a noise reduction wire with a triangular spiral groove; the pipe winder assembly is provided with a pipe winder which comprises various damping mechanisms and is complemented by a centrifugal slow retraction device, a side piston damping device, a position lock, a ball position lock, a reverse damping mechanism, a movable plate pressure spring damping mechanism and a pipe winder angle groove type damping mechanism; the mower circuit is mainly operated by a starting button AQ and a handle (75), and is additionally provided with a safety device; the support assembly is composed of a fixed sliding seat (90c) arranged on a support seat of a mower chassis and a movable support (90) which can be pulled out and is provided with a sliding rod (90a) and a limiting block (90b), the sliding rod (90a) of the movable support (90) is sleeved in the fixed sliding seat (90c) of the support seat, and after the movable support is pulled out and positioned by the limiting block (90b), the lithium battery with the charger and the inverter is placed on the movable support (90); the cutting device assembly arranged in the middle of the electric mower of the series excited motor is dragged by the offset series excited motor which is not arranged in the center; the cutting device has two types, one is a knife with a fan plastic knife holder, and the other is a grass cutting head; the fan plastic cutter holder (85) is provided with a spline groove (85a) which is matched with a spline (82a) of the large belt wheel (82); the cutter holder (85) is provided with a plurality of fans (85d) and a plurality of small through holes (85c) which are hexagonal holes; the fan is provided with a cutting edge (85 b); the cutter holder is made of non-conductive material, is made of plastic and is made of nylon and fiber; the series excitation motor electric mower is provided with a cutting device assembly with a grass cutting head and a central pull wire pulling rotating rod, and consists of an inner frame (76), a series excitation motor (77), a motor belt pulley (84), a belt (83), a large belt pulley (82), a pull wire (81), a pulling rotating rod (78), a thrust bearing (79), a pull rotating frame (80) with a labyrinth and the grass cutting head; the grass cutting head is also called as a coiling grass cutting assembly with a wire box base, and consists of a grass cutting head shell (24-3), a reel spring (25-1), a reel (25-3), a nylon thread (134), a protective coil (123), a thread eye inserting piece (25-6) and a wire box upper cover (25-7); the blade (127) is arranged on the circumference of the cutting disc of the mower, and the blade sleeve (126) is placed on the blade (127) when the mower is not used; the inner frame (76) is arranged above a cutting disc of a chassis of the mower, a motor belt pulley (84) is arranged on a shaft of an offset series motor (77), and a belt (83) is used for driving a large belt pulley (82) with a central line at the center of the cutting disc of the chassis; the big belt wheel (82) drives the grass cutting head; the big belt wheel (82) is sequentially connected with the grass mowing head shell (24-3), the thread eye inserting piece (25-6) and the thread box upper cover (25-7), a winding wheel (25-3) is pressed in the grass mowing head shell (24-3) through a winding wheel spring (25-1), and a nylon thread (134) and a protective coil (123) are arranged on the winding wheel (25-3); the pull rotating rod 78 is connected with the reel (25-3) or fixedly connected with the reel, or connected with a shaft collar, or connected with a reverse screw thread, or connected with a thrust bearing; the other end of the pulling rotating rod (78) is connected with a pulling rotating frame (80) with a labyrinth through a thrust bearing (79), one end of a steel wire rope of the pull wire (81) is sleeved on the pulling rotating frame (80), and the other distal end of the pull wire is connected with a pay-off operating lever (81b) of the mower; the labyrinth type pulling and rotating frame (80) is square, a hole (80c) for pulling the rotating rod is arranged below the labyrinth type pulling and rotating frame, a long hole (80b) is arranged on the side surface of the labyrinth type pulling and rotating frame, a central hole (80d) is arranged above the labyrinth type pulling and rotating frame, a labyrinth (80a) is arranged above the labyrinth type pulling and rotating frame, and a plurality of bent paths are arranged on the labyrinth type pulling and rotating frame and are connected with the long hole and the central hole, so that a pulling wire can be placed into the pulling and rotating frame; the cross section of the nylon wire (134) is provided with at least one notch (34 a); the notches are spiral along the nylon line and are evenly distributed along the circumference in equal parts; and the notches are triangular; the circuit of the series excited motor electric mower mainly comprises a fuse RC, a switch K, an inductor L3, an inductor L4, a capacitor C, a series excited motor M provided with a winding L1 and a winding L2, a starting button AQ, a handle (75), a diode Di, resistors R1 and R2, a light-emitting tube LED, a winder and a plug socket; the head of the handle 75 is provided with a hook; the start button AQ is provided with a long sheet QA2, a press block QA1 is connected with the long sheet QA, and a limit sheet QA 3; when the starting button AQ is pressed down and the handle (75) is pulled, the hook head arranged on the head of the handle (75) presses the pressing block QA1 of the starting button AQ, and the pressing block QA1 of the starting button AQ presses the switch K, so that the starting can be realized; when the door is closed, each piece can be elastically reset by pulling the handle (75); the anti-collision safety device arranged at the front part of the mower chassis is arranged on a movable support (90) of the support assembly, the movable support (90) consists of a fixed sliding seat (90c) arranged on a support seat of the mower chassis, and a sliding rod (90a) and a limit (90b) which can be pulled out, the sliding rod (90a) of the movable support (90) is sleeved in the fixed sliding seat (90c) of the support seat and is positioned by the limit (90b) when being pulled out, the movable support (90) is wrapped by rubber, and the limit (90b) is provided with a limit switch so that the limit switch arranged on the limit (90b) is triggered when the sliding rod (90a) of the movable support (90) is retracted due to the fact that the rubber wrapping the movable support (90) is collided in front, so as to form the anti-collision safety device for safety; the blowing and sucking machine (229) is a low-vibration leaf blowing and sucking machine for a mower, and comprises a movable auxiliary handle, a dust bag support and a tying opening, a soft piece is added at a dust outlet of an upper shell of the large body, a blade is added at a blowing impeller, a circuit is added with a safety device and a double switch, a silencing and vibration damping material and a honeycomb are added in the blowing and sucking machine, a roller is changed into a steerable direction, and a single extension pipe is changed into a multi-extension pipe or a flexible folding pipe; the improved low-vibration leaf blowing and sucking machine comprises self-tapping screws (c1), a big upper shell (c2), a power line (c3), a cable sheath (c4), a switch trigger spring (c4), a terminal table (c4), a cable pressing plate (c4), a capacitor (c4), the self-tapping screws (c4), a main switch (c4), a speed regulator (c4), a rubber gasket (c4), a motor (c4), a fan blade gasket (c4), a blowing impeller (c4), a hexagon nut (c4), a fan blade plug (c4), the self-tapping screws (c4), a rotating shaft cover (c4), a spring (c4), a retainer ring (c4), a blowing and sucking conversion plate (c4), a big lower shell (c4), a safety switch (c4), a rotating shaft (c4), a blowing and sucking conversion knob (c4), a side button (c4), a torsion spring shaft (c4) and a telescopic pipe (c4), the device comprises wheels (c33), a wheel shaft (c34), a dust bag bracket (c35), a dust bag (36), a hexagon head bolt (c37), a square auxiliary handle knob (c38), a self-tapping screw (c39), an auxiliary handle cover (c40), an auxiliary handle bottom (c41), an M6 nut (c42), a strap (c43), a nylon cable tie (c44), an elastic ball-bumping automatic positioner (c45), or a multi-extension pipe (c46), or a flexible folding pipe (c47), and a blown multi-extension pipe (c 48); the self-tapping screws (c1) are multiple and are used for fixing the upper big shell (c2) and the lower big shell (c 24); the upper shell (c2) and the bottom shell (c24) are assembled from left to right and comprise a handle part, an auxiliary handle part, an extension tube limiter part, a motor volute part, a blowing and sucking change door part, a dust outlet part and a plurality of external hanging parts; a power line (c3), a cable sheath (c4), a switch trigger (c5), a switch trigger spring (c6), a terminal table (c7), a cable pressing plate (c8), a capacitor (c9), a self-tapping screw (c10), a main switch (c11) and a speed regulator (c12) are sequentially arranged on the handle parts of the upper big shell (c2) and the bottom big shell (c 24); the rubber gasket (c13), the motor (c14), the fan blade gasket (c15), the blowing impeller (c16), the hexagonal nut (c17) and the fan blade plug piece (c18) are sequentially arranged at the positions of the motor volutes of the upper big shell (c2) and the bottom big shell (c 24); self-tapping screws (c19), a rotating shaft cover (c20), a spring (c21), a retainer ring (c22), a blowing and sucking conversion plate (c23), the large bottom case (c24), a safety switch (c25), a rotating shaft (c26) and a blowing and sucking conversion knob (c27) are sequentially arranged at the blowing and sucking conversion door part of the large upper case (c2) and the large bottom case (c 24); side buttons (c28), a torsion spring (c29), a torsion spring shaft (c30) and an extension tube (c31) are sequentially arranged at the positions of the extension tube limiters of the upper shell (c2) and the bottom shell (c24) of the big body; the telescopic pipes (c31) or cylinders or square pipes are interconnected at the front part, and wheel mounting parts are arranged at the front lower part; a wheel mounting part arranged at the front lower part of the telescopic pipe (c31) is sequentially provided with a shaft check ring (c32), a wheel (c33) and a wheel shaft (c 34); soft sheets (c2a) are arranged at the positions of the dust outlets of the upper shell (c2) and the bottom shell (c24) of the big body; at least one soft sheet is in a triangular shape, an oblique quadrangle shape or a trapezoidal shape; alternatively, the soft sheet is not directly injected on the shell, but is made of flexible material and made of fiber fabric; two clamping grooves are arranged outside the dust outlet parts of the upper shell (c2) and the bottom shell (c24) of the main body so as to clamp and hang the dust bag bracket (c35) and the dust bag (36); the dust bag bracket is provided with a hook (c35a), a hook rib (c35b), a hook side gap (c35c), a large bag sleeving ring (c35d) and a small bag sleeving ring (c35 e); 3 or more of the hooking ribs (c35 b); the dust collection bag (36) is made of fiber fabric and is provided with a pipeline which can be communicated with the grass collection box of the mower; and is provided with a zipper and two associated hanging buckles; the prepared bandage (c44) of the side, wrapped by the suture, of the dust bag (36) with the pipeline is placed between the big bag loop (c35d) and the small bag loop (c35e) of the dust bag bracket (c35), and the nylon bandage (c44) with the barb buckle is fastened tightly; the auxiliary handle parts of the upper big shell (c2) and the bottom big shell (c24) are sequentially provided with a hexagon head bolt (c37), a square auxiliary handle knob (c38), a self-tapping screw (c39), an auxiliary handle cover (c40), an auxiliary handle bottom (c41), and an M6 nut (c42) to form a movable auxiliary handle; an auxiliary handle cover (c40) of the auxiliary handle is provided with an arc-shaped communication handle (c40a) and a plurality of radial tooth ridges (c40b) at the end part; the safety circuit with the safety protection consists of a terminal block (C7), a safety RC, a double-pole switch K, an inductor L, a capacitor C, a series motor M with a winding and a speed regulator (C12); the speed regulator (C12) consists of a bidirectional Thyristor (TC), a bidirectional thyristor (DC), a resistor (R1), a resistor (R2), a variable resistor (R3), a capacitor (C2) and a speed regulating switch (K3); the improved blowing and sucking machine has several parts with damping and silencing material and honeycomb structure for damping and silencing, and the improved blowing and sucking machine has mask, gloves, protecting glasses and safety; the blowing impeller of the blowing and sucking machine is additionally provided with a cutting edge which comprises a top cutting edge (c16a) and a side peripheral cutting edge (c16 b); the blowing impeller (c16) needs to be post-processed and then is measured and balanced by a tool with laser collimation; the wheel axle frame below the head of the extension tube (c31) is disassembled to form an independent part wheel axle frame (c31a), a hole is arranged at the position for placing the wheel axle frame below the head of the extension tube (c31) to insert a vertical shaft of a ring clamping groove on the wheel axle frame (c31a), a wheel axle (c34) penetrates through the wheel axle frame (c31a), and a pair of wheels (c33) are arranged and are respectively provided with a retaining ring (c32) for an axle; the single extending cylinder is changed into a multi-extending pipe (c46), and an automatic positioner, such as an elastic ball-touching automatic positioner (c45), or an automatic positioner of a touching block, or an automatic positioner of a torsion spring, is arranged, so that the single extending cylinder can be automatically positioned after being randomly drawn and contracted in place; the number of the multi-extension pipes (c46) matched with the automatic positioner is more than 4; the multiple extension pipes (46) are provided with grooves matched with the positioners; the telescopic antenna is improved and used as a multi-extension pipe (c46) in a blowing and sucking machine by using the principle of a telescopic antenna which can be freely pulled in and pulled out, and a small suction pipe is called the multi-extension pipe (c 48); the multiple projecting pipes (c46, c48) are characterized in that one end is turned inside and the other end is turned outside; the fish is connected with one section by one section, is a plurality of sections, has at least 4 sections, can be freely pulled out or returned, and has convex-concave clamping positions at the flanging position; or the principle of freely pulling in and out accordion, and the common foldable hose of vacuum cleaner and washing machine, it is improved and used as multiple extending pipe of blowing-suction machine, called flexible folding pipe (c 47); for convenient positioning, or with multiple extension tubes (c 48); said flexible folding tube (c47) has a plurality of folds, whether the cross section is square or round or other shape, the adjacent circumference of the tube is arranged alternatively from large to small circles, i.e. fish-through-thick and-thin, the segments are multi-segment, at least 4 segments or more; or the tube material of the flexible folding tube (c47) is made of flexible material such as fabric, cloth, plastic film, and a plurality of rings are arranged at intervals along the flexible tube, or a spiral spring is sleeved along the inner or outer part of the flexible tube as an interval ring for supporting and pulling in and pulling out; the coil spring is sparse and flexible; the method for improving the manufacturing and assembling precision by using laser is a method for improving the coaxiality of a motor and a blowing impeller and measuring dynamic balance by using a precision molding part and a laser sighting tool; because the vibration and noise of the blowing and sucking machine are caused by the precision and form and position tolerance of power and tools, the coaxiality of a motor and a blowing impeller is required to be improved, and dynamic balance is required to be measured so as to have certain curative effect on the long-standing problem of low vibration and low noise of the blowing and sucking machine; firstly, the requirements on form and position tolerance and the requirements on the coaxiality and the form and position tolerance of a motor and a blowing impeller assembly are improved from the design of a drawing, the magnitude of interference of the motor and the blowing impeller is increased, and then the motor and the blowing impeller are pressed by a force application tool clamp; secondly, preparing a precise mould by using a numerical control CNC machining center, and post-treating a plastic part blowing impeller, wherein the main method is to use a high-temperature steam method to steam for more than three hours so as to solve the problem that the size of the plastic part is not easy to deform; secondly, in order to improve the coaxiality of the motor and the blowing impeller, during assembly, a special tool press with laser collimation for calibrating the coaxiality of the motor and the blowing impeller assembly is adopted, after lamination, the assembly can be put on a production line after batch sampling, dynamic balance measurement and correction, and finally the whole machine also needs to sample, measure and balance to be supplemented with a plurality of damping and noise elimination materials to comprehensively form the improved low-vibration leaf blowing and sucking machine; the included angle between the top surface of the blade of the impeller and the front surface of the blade of the impeller, of the top cutting edge (c16a) of the impeller, is an acute angle with the chopping angle not more than 45 degrees; the sliding cutting angle of the included angle between the side peripheral surface of the blade of the blowing wheel and the front surface of the blade of the blowing wheel of the side peripheral cutting edge (c16b) of the blowing wheel is also an acute angle which is not more than 60 degrees; the cutting edge additionally arranged on the blowing impeller is locally shorter along the edge of the front surface of the blade or is mostly longer along the edge; the cutting edge is a straight edge or an arc edge or a multi-fold edge; and the arc edge is a section of logarithmic spiral equal to the pressure angle, or an Archimedes line, or a parabola; the blowing impeller is also additionally provided with a blade steel knife which is a strip-shaped knife; the impeller blade is provided with a plurality of elliptic and hexagonal noise reduction holes; the vibration-damping and noise-eliminating honeycomb structures arranged at multiple positions of the blowing and sucking machine are in a plurality of densely interconnected hexagons and comprise noise-eliminating wedge structures, and the density and the width-depth ratio of the vibration-damping and noise-eliminating honeycomb structures are related to the vibration parameters and the noise characteristics of the blowing and sucking machine and are tested for multiple times; the multiple positions of the blowing and sucking machine are additionally provided with damping and silencing materials, or metal fibers or non-metal materials are used for filling or semi-filling; or the sound absorbing material with medium temperature resistance is porous sound absorbing material, or flexible material, and film material; the porous material can be fiber, foam, particle or mixed application; or using fiber such as rock wool, or glass fiber, or using superfine glass wool; or using foams to prevent fire at high places such as the motor; or granules, expanded perlite or porous pottery clay brick; or temperature-resistant fabrics, felts, or attachments; the honeycomb structure is attached after being prefabricated or is subjected to mixed molding; the pipe winder is a pipe winding device with a ball position lock and a multi-damping mechanism, and the pipe winding device with the ball position lock and the multi-damping mechanism is additionally arranged on the winder by utilizing the characteristic that a large gear (4) which is fixed in the middle can be additionally provided with a small gear (9) to rotate around the large gear; the position lock with the ball consists of a pinion (9), a lock core shaft (74) driven by the pinion (9), the ball (70), a torsion spring (73), a lock core (72) and a position lock box shell (71); the position lock box shell (71) is assembled on the main wheel (14), the torsion spring (73) is sleeved on the lock core shaft (74), and the normal state is tightly sleeved; the lock cylinder (72) is movably sleeved on the torsion spring (73) and the lock cylinder shaft (74) and is arranged in the position lock box shell (71); the lock core (72) is provided with an eccentric heart-shaped lock groove, the eccentricity is convenient for the ball in the groove to move in the same direction, and the concave bottom of the heart shape is the position of the lock when the ball enters; the ball (70) is a smooth steel ball; the torsion spring (73) is a tight ring, the section is circular, the multi-bent L-shaped end part (73a) and the U-shaped end part (73b) can be conveniently machined, and the mandrel is not easily abraded due to square twisted edges during working; the end part (73a) of the torsion spring (73) is L-shaped, so that the torsion spring is favorably clamped above the lock cylinder (72); the other end (73b) is U-shaped and has two sides, thus being beneficial to the pushing of the ball (70); the end part (73a) of the torsion spring (73) is clamped on the lock cylinder (72), and the end part (73b) of the torsion spring (73) extends into a square hole close to the center tip part of the heart-shaped lock groove of the lock cylinder (72) and is in contact with the ball (70); the ball (70) is movably arranged in an axial long groove (71a) of the position lock box shell (71) and a heart-shaped lock groove of the lock core (72) and is in contact with an end part (73b) of a torsion spring (73) which is sleeved on the lock core shaft (74) and extends out of the lock core (72) so as to be linked with the heart-shaped lock groove of the lock core (72) to move up and down along with the axial long groove (71a) of the position lock box shell (71), and the aim is that when the ball (70) pushes the end part (73b) of the torsion spring (73) to be in place, the inner diameter of a tight ring of the torsion spring is increased, so that the lock core shaft (74) driven by the pinion (9) is loosened, and a pipeline is free; when the ball (70) falls to the locking position, the end part (73b) of the torsion spring (73) is not pushed, so that the inner diameter of a tight coil of the torsion spring is reduced, a lock core shaft (74) driven by the pinion (9) is tightly wrapped, and the pipeline is fixed; thereby forming a pipe coiling device with a ball position lock and a multi-damping mechanism; when the pipeline is pulled, the upper large disc (12), the main wheel (14), the pipe joint (15) and the lower disc (16) are rotated relative to the outer shell because the main wheel (14) is provided with the joint (15), the pipeline is installed on the joint and wound on the main wheel, the main wheel (14) and the lower disc (16) are fixedly connected into a whole through screws, and the main wheel is rotatably sleeved and inserted on a smooth outer shaft surface of a central large pipe of the lower disc (16); when the pipeline is pulled out, the main wheel (14) drives the pinion (9); when the lock is stopped, the ball (70) can contact the concave bottom of the heart-shaped lock groove along the eccentric heart-shaped lock groove (eccentric so that the ball in the groove moves forward) arranged on the lock core (72) due to the reaction of the spring, and the ball is in a locking position when entering and is in a locking state; the point is pulled again and the pipeline is loosened, and the hose or the cable automatically winds back under the reaction force of the clockwork spring (11) without a lock; the mower with the chassis blade broom is characterized in that the mower comprises a blowing suction device, a watering device, a fertilizing device, a pesticide spraying device and a braking device, wherein the blowing suction device is provided with the chassis blade broom, the watering device is provided with the fertilizing device, the pesticide spraying device is provided with the chassis blade broom, and the braking device is: it is provided with a logarithmic spiral brake, a blowing and sucking machine, a pipe coiling device which is provided with a liquid pipeline and can be used for irrigating, fertilizing and spraying pesticide; the brake comprises an inner frame (76), a motor (77) is arranged on the inner frame, a motor belt pulley (84) is arranged on a shaft of the motor (77), and a belt pulley (204) with a central line at the center of a cutting disc of a chassis is driven through a belt (83); an output shaft (203) which is coaxially connected with the output shaft in a clutching way, wherein the output shaft (203) is connected with a working cutter such as a mowing knife; one end of a brake tension spring (210) is fixed on the belt wheel (204) by a machine tooth screw (216), and the other end of the brake tension spring (210) is connected with a return pull hole (225) of a brake rod (208a) for braking; the brake rod (208a) is provided with a rotating hole (226) and is connected in the belt wheel (204) through a rivet and can flexibly rotate; a friction plate (209) is arranged on the brake lever (208 a); the inner frame is provided with a fixed brake ring (201 a); a coaxial lug drive plate (227) is sleeved outside the output shaft (203); a lug dial seat (224b) is arranged at the edge of the lug dial (227); a reset seat (228) is further arranged at the edge of the lug drive plate (227) so as to be convenient for installing a reset pressure spring (228a) for resetting; the lug shifting seat (224b) is provided with a lug assembly (224 a); the brake rod (208a) is provided with a hollowed arc-shaped groove which is surrounded by an upper arc (224d), a groove edge (224), a lower arc (224c) and another groove edge (224) in sequence; the upper arc (224d) is a semicircular arc, and the distance from the center of the circle to the axis of the output shaft (203) is longer than the distance from the center of the circle of the lower arc (224c), which is also a semicircular arc, to the axis of the output shaft (203), so that the groove edge (224) of the arc-shaped groove is not along the concentric circumference along the axis of the output shaft, but is eccentric, and a substantial cam is formed; inserting a lug assembly (224a) on the lug drive plate (227) into the arc-shaped groove and sliding along the groove edge (224), so as to form a substantial cam structure; when the series excited motor stops rotating, although the series excited motor is internally provided with electromagnetic scram, the mowing knife has large inertia and is difficult to scram, and a brake is needed in order to scram the mowing knife to meet safety regulations; when the series motor stops rotating, the belt wheel (204) driven by the motor stops rotating, the brake lever (208a) loses the inertial centrifugal force thrown outwards, rotates through the rotating hole (226) and the rivet, and rotates to return through the return pulling hole (225) of the brake lever (208a) connected with the brake tension spring (210), so that the friction plate (209) arranged on the brake lever (208a) is used for braking the fixed brake ring (201a) arranged on the inner frame; when the brake lever (208a) rotates back, a hollowed arc-shaped groove which is surrounded by an upper arc (224d), a groove edge (224), a lower arc (224c) and another groove edge (224) in sequence is arranged on the brake lever (208 a); because the upper arc (224d) is a semicircular arc, and the distance from the center of the circle to the axis of the output shaft (203) is longer than the distance from the center of the circle of the lower arc (224c), which is also a semicircular arc, to the axis of the output shaft (203), the groove edge (224) of the arc-shaped groove is eccentric instead of following the concentric circumference along the axis of the output shaft, so that a substantial cam is formed; a lug block component (224a) on the lug drive plate (227) which is inserted into the arc-shaped groove and slides along the groove edge (224) is pressed from the upper arc (224d) to the lower arc (224c) according to the principle of a substantial cam structure, and a coaxial lug drive plate (227) is sleeved outside the output shaft (203), so that a working cutter such as a mowing knife connected with the output shaft (203) stops rotating; on the contrary, when the series motor rotates again, the belt wheel (204) driven by the motor rotates, the brake lever (208a) is subjected to an inertial centrifugal force thrown outwards, and rotates away by taking the rotating hole (226) as a pivot through a rivet, so that a friction plate (209) arranged on the brake lever (208a) is separated from a fixed brake ring (201a) arranged on the inner frame, and meanwhile, a reset seat (228) is also arranged at the edge of the lug drive plate (227), so that the reset pressure spring (228a) which is convenient to install is reset; the mower with the chassis blade broom is characterized by being provided with a pipe coiling device of a liquid pipeline which can be used for irrigating, fertilizing and spraying pesticide and a blowing and sucking machine (229) arranged on the mower; the inside of the pipe coiling device is filled with water for irrigation, or liquid fertilizer for fertilization and or liquid pesticide for pesticide spraying; the blowing and sucking machine (229) arranged on the mower is characterized in that a dust bag bracket (35) of the blowing and sucking machine (229) is connected with a dust bag (36), and the dust bag (36) is connected with a grass collecting box at the rear part of the mower through a pipeline; a blowing and sucking fan blade (231) and a broom (232) are arranged on a mowing knife of a chassis of the mower for directly blowing and sucking.

The improved mower with the chassis blade broom is characterized in that: the fixed brake ring (201a) arranged on the inner frame is metal, so that heat resistance and wear resistance are facilitated; and the fixed brake ring (201a) arranged on the inner frame is metal, and the brake ring (201a) is provided with a plurality of convex flanges so as to be clamped firmly.

The improved mower with the chassis blade broom is characterized in that: the arc of the friction plate (209) arranged on the brake rod (208a) is a section of logarithmic spiral.

The improved mower with the chassis blade broom is characterized in that: a lug shifting seat (224b) arranged at the edge of the lug shifting plate (227) is provided with a through hole and a square pit so as to install the lug component (224 a); and the lug block component (224a) arranged on the lug block drive plate (227) comprises a bolt, a nut and a sliding sleeve.

The improved mower with the chassis blade broom is characterized in that: the lug block component (224a) arranged on the lug block drive plate (227) comprises a bolt, a nut, a sliding sleeve and a bearing.

The improved mower with the chassis blade broom is characterized in that: the reset seat (228) arranged on the lug drive plate (227) is in a protruding cross shape so as to firmly install the reset pressure spring (228 a).

The improved mower with the chassis blade broom is characterized in that: the brake rod (208a) is provided with a hollowed arc-shaped groove which is formed by an upper arc (224d), a groove edge (224), a lower arc (224c) and another groove edge (224) which are orthogonal, tangent or smooth at the connection position in sequence.

The improved mower with the chassis blade broom is characterized in that: the arc shape of the groove edge (224) of the hollowed arc-shaped groove arranged on the brake lever (208a) is a segment of a logarithmic spiral.

The improved mower with the chassis blade broom is characterized in that: the liquid fertilizer for fertilization filled in the pipe of the pipe coiling device is fertilizer which is added with soluble fertilizer in percentage; or the liquid pesticide for spraying the pesticide is filled in the pipe of the pipe rolling device, and the soluble pesticide is added into water according to the percentage.

The improved mower with the chassis blade broom is characterized in that: the blowing and sucking port (230) of the blowing and sucking machine (229) arranged on the mower is a horn mouth; and the middle part of the blowing and sucking machine (229) is provided with a movable ball winch on the mower as a fulcrum, and the carrying belt (43) of the blowing and sucking machine (229) is led to the side of an operating handle of the mower, so that the direction of the blowing and sucking opening (230) of the blowing and sucking machine (229) can be finely adjusted by pulling the carrying belt (43).

The invention relates to a lawn mower for trimming lawns in places such as courtyards, parks, sides of roads and the like, which is an improved intelligent mower with an automatic charging pin inserted into and pulled out of a contact piece assembly; the multifunctional mower is characterized in that an improved intelligent mower with an automatic charging pin inserted and pulled out contact piece assembly is further arranged on the basis of a multifunctional mower which comprises an anti-collision safety device arranged at the front part of a mower chassis, a logarithmic spiral brake with anti-collision safety function and automatic stop function, a low-vibration leaf blowing and sucking machine, a dust bag bracket, a pricking port, a soft piece arranged on a dust outlet of an upper shell of a body, a blade arranged on a blowing impeller, a circuit, a safety device, a double switch, a material for silencing and damping and a honeycomb arranged outside the blowing and sucking machine, a roller capable of turning, a single extending cylinder, a multi-extending pipe or a flexible folding pipe, a blowing and sucking head and a mowing head and a pipe winder provided with liquid pipelines for irrigating, fertilizing and spraying pesticide, so that the contact piece assembly can be reliably and automatically plugged and pulled out for charging; just like automobiles needing gas stations, electric mowers also need charging stations, and the market needs an intelligent mower with a charging assembly with an automatic charging pin inserted into and pulled out of a contact piece so as to be reliably and automatically plugged and charged; therefore, the improved intelligent mower with the automatic charging pin inserted into and pulled out of the contact piece assembly is produced, and the problem that the battery is not durable and needs frequent manual charging is solved; the improved intelligent mower with the contact sheet assembly capable of being inserted and pulled out through the automatic charging pin is characterized by comprising an improved contact sheet assembly capable of being inserted and pulled out through the automatic charging pin; the contact piece assembly with the automatic charging pin insertion and extraction function comprises a fixed power supply component with the automatic charging pin insertion component and a movable power receiving component with the extraction contact piece of the mower body; the fixed power supply component with the automatic charging pin insertion component is provided with a bottom plate horizontally paved on the ground surface, a front wall standing in front, a power supply source and anchor screws, and the left side and the right side of the bottom plate horizontally paved on the ground surface are respectively provided with guide rails (233c) which are symmetrical along the central axis so as to guide the left side and the right side of the machine body at the front part of the mower, which are symmetrical along the central axis; the curve section of each guide rail of the guide rails (233c) which are arranged on the left side and the right side of the bottom plate horizontally paved on the ground surface and are symmetrical along the central axis is a cubic curve so as to reduce the impact; the four feet of the bottom plate horizontally paved on the ground surface are provided with the foundation screws so as to be fixed; the front part of the bottom plate horizontally paved on the ground surface is provided with the front wall standing in front; the front wall standing in front is provided with the charging pins ((233) which are respectively arranged at the left side and the right side and are symmetrical along a central axis, the root parts of the charging pins ((233) are provided with pin balls (233a) so as to follow a trace amount, the root parts of the charging pins ((233)) are provided with threads so as to be connected with the power supply source, the head parts of the charging pins ((233) are provided with inserting surfaces (233b) so that the charging pins can be inserted into and pulled out of contact sheets, the bottom plate which is horizontally paved on the ground surface is paved and pulled out along the central axis and is paved with a guide wire of electromagnetic pulse in a working area along the ground surface so as to pass through a sensor (234d) below the front part of the mower and a circuit board to intelligently guide the fixed power supply component with the automatic charging pin inserting component to walk to the bottom plate which is horizontally paved on the ground surface when the mower is charged, and the movable power receiving component with the pulled-out contact sheets is arranged at, the movable current receiving component with the pull-out contact piece comprises a sensor (234d) below the front part of the mower, a contact piece (234) arranged at the front part of the mower, a pressing piece torsion spring (234a) and a rotating shaft; the contact pieces (234), the pressing piece torsion springs (234a) and the rotating shafts are four in number, each contact piece (234), the pressing piece torsion spring (234a) and the rotating shaft form a movable door, one movable door formed by each contact piece (234), the pressing piece torsion spring (234a) and the rotating shaft and the other movable door formed by each contact piece (234), the pressing piece torsion spring (234a) and the rotating shaft form a pair of oppositely-opened double doors, the contact surface ((234b) of each contact piece (234) facing each other of the movable doors with the double doors on the left side and the right side correspond to the insertion surface (233b) arranged on the head of the charging pin ((233) symmetrically arranged along the central axis and arranged on the front wall standing ahead, the charging pin is inserted along with the micro pin ball (233a) by the micro pin, and the grass cutter is started to retreat when the charging is up to a set value, the charging pin is pulled out of the contact piece, and then the charging pin works; when charging is required again, the mower walks to the floor horizontally paved on the ground surface and inserted by the charging pin, wherein the power supply part is fixed with the automatic charging pin insertion part.

The continuously improved and perfected improved intelligent mower with the automatic charging pin inserting and pulling contact piece component is characterized in that the curve sections of guide rails (233c) which are symmetrical along the central axis and are respectively arranged on the left side and the right side of a bottom plate which is horizontally paved on the ground surface are mutually in a horn mouth shape so as to be matched with an auxiliary guide rod (234e) on the front side of the mower.

Improved intelligent lawn mower with automatic charging pin inserting and extracting contact piece assembly is characterized in that the curve section of each guide rail of the guide rails (233c) which are respectively arranged along the central axis and are symmetrical along the central axis on the left side and the right side of the bottom plate horizontally paved on the ground is cubic curve so as to match with the auxiliary guide rod (234e) on the front side of the lawn mower to reduce the impact.

The continuously improved and perfected improved intelligent mower with the automatic charging pin inserting and extracting contact piece assembly is characterized in that the foundation screws arranged on the four feet of the bottom plate horizontally paved on the ground surface are expansion screws.

The improved intelligent mower with the automatic charging pin inserting and extracting contact piece component is characterized in that a pin ball (233a) arranged at the root of a charging pin ((233)) is provided with a cross pin on a spherical seat so as to be slightly follow.

The continuously improved and perfected improved intelligent mower with the automatic charging pin inserting and extracting contact piece assembly is characterized in that two nuts are arranged on threads arranged at the root of the charging pin ((233)) to prevent the charging pin from loosening.

Improved and perfected intelligent lawn mower with automatic charging pin insertion and extraction contact blade assembly, characterized in that the orientation table (233a) provided at the root of the charging pin ((233)) incorporates a thick rubber pad for jogging and impact resistance.

Improved intelligent lawn mower with automatic charging pin inserting and extracting contact piece assembly is continuously improved and perfected, and is characterized in that the inserting surface (233b) arranged on the head of the charging pin (233) is wedge-shaped.

Improved and improved intelligent lawn mowers with automatic charging pin insertion and extraction contact blade assemblies are being developed and perfected, wherein there are two close-coil torsion springs of the sheeting torsion spring (234 a).

Improved intelligent lawn mower with automatic charging pin insertion and extraction contact piece assembly, characterized in that, a section of curve of the contact surface ((234b) of the contact piece (234) is logarithmic spiral, because the logarithmic spiral, i.e. equiangular spiral has the characteristic of equal pressure angle at all positions, the contact insertion is facilitated.

The intelligent mower with the front universal wheel and the half-edge guide groove which are matched to enlarge the mowing area comprises an improved contact piece assembly with an automatic charging pin inserted and pulled out; the contact piece assembly with the automatic charging pin insertion and extraction function comprises a fixed power supply component with the automatic charging pin insertion component and a movable power receiving component with the extraction contact piece of the mower body; the fixed power supply component with the automatic charging pin insertion component is provided with a bottom plate horizontally paved on the ground surface, a front wall standing in front, a power supply source and anchor screws, and one side of the bottom plate horizontally paved on the ground surface is provided with guide rails (233c) which are symmetrical along the advancing line of the single-side front universal wheel so as to guide the left and right of the advancing line of the single-side front universal wheel on the front part of the mower body; the curve section of each guide rail of the guide rails (233c) which are arranged on the left side and the right side of the bottom plate horizontally paved on the ground surface and are symmetrical along the central axis is a cubic curve so as to reduce the impact; the four feet of the bottom plate horizontally paved on the ground surface are provided with the foundation screws so as to be fixed; the front part of the bottom plate horizontally paved on the ground surface is provided with the front wall standing in front; the front wall standing in front is provided with the charging pins ((233) which are respectively arranged at the left side and the right side and are symmetrical along a central axis, the root parts of the charging pins ((233) are provided with pin balls (233a) so as to follow a trace amount, the root parts of the charging pins ((233)) are provided with threads so as to be connected with the power supply source, the head parts of the charging pins ((233) are provided with inserting surfaces (233b) so that the charging pins can be inserted into and pulled out of contact sheets, the bottom plate which is horizontally paved on the ground surface is paved and pulled out along the central axis and is paved with a guide wire of electromagnetic pulse in a working area along the ground surface so as to pass through a sensor (234d) below the front part of the mower and a circuit board to intelligently guide the fixed power supply component with the automatic charging pin inserting component to walk to the bottom plate which is horizontally paved on the ground surface when the mower is charged, and the movable power receiving component with the pulled-out contact sheets is arranged at, the movable current receiving component with the pull-out contact piece comprises a sensor (234d) below the front part of the mower, a contact piece (234) arranged at the front part of the mower, a pressing piece torsion spring (234a) and a rotating shaft; the contact pieces (234), the pressing piece torsion springs (234a) and the rotating shafts are four in number, each contact piece (234), the pressing piece torsion spring (234a) and the rotating shaft form a movable door, one movable door formed by each contact piece (234), the pressing piece torsion spring (234a) and the rotating shaft and the other movable door formed by each contact piece (234), the pressing piece torsion spring (234a) and the rotating shaft form a pair of oppositely-opened double doors, the contact surface ((234b) of each contact piece (234) facing each other of the movable doors with the double doors on the left side and the right side correspond to the insertion surface (233b) arranged on the head of the charging pin ((233) symmetrically arranged along the central axis and arranged on the front wall standing ahead, the charging pin is inserted along with the micro pin ball (233a) by the micro pin, and the grass cutter is started to retreat when the charging is up to a set value, the charging pin is pulled out of the contact piece, and then the charging pin works; when the lawn mower needs to be charged again, the lawn mower walks to the bottom plate horizontally paved on the ground surface and inserted by the charging pin, wherein the power supply part is fixed with the automatic charging pin insertion part; the curve section of each guide rail of the guide rails (233c) which are respectively arranged on the left side and the right side of the bottom plate horizontally paved on the ground and are symmetrical along the central axis is a cubic curve so as to be matched with an auxiliary guide rod (234e) on the front side of the mower to reduce the impact; the foot margin screws arranged on the four feet of the bottom plate horizontally paved on the ground surface are expansion screws; the intelligent mower with the front universal wheel and the half-side guide groove for expanding the mowing area is characterized in that the pin ball (233a) arranged at the root of the charging pin (233) is arranged on the concave half-ball seat, the left pin and the right pin of the pin ball are respectively positioned in the U-shaped groove of the left side and the right side, so as to facilitate micro-motion follow-up and impact resistance; the intelligent mower with the mowing area enlarged by matching the front universal wheel and the half-side guide groove comprises a fixed power supply component with an automatic charging pin insertion component, wherein one side of a bottom plate horizontally paved on the ground surface is provided with narrow guide rails (233c) which are symmetrical along the advancing line of the single-side front universal wheel, a middle groove of each narrow guide rail (233c) can only accommodate the front universal wheel of the single-side front wheel of the mower, the left-right width of each narrow guide rail (233c) is smaller than half of the width of the mower, each guide rail of each narrow guide rail (233c) is in a horn shape containing a cubic curve section of a high-class mathematical function curve, so that the impact is relieved, the front universal wheel is matched with the half-side guide groove to guide the front part of the mower along the left-right side of the advancing line of the single-side front universal wheel, the mowing area is enlarged, and the left-side half of the left-side cutting area or the left-side half of the cutting area or the left-side cutting area is avoided The left half is the injured guide track area.

Has the advantages that: the intelligent mower with the front universal wheel and the half-edge guide groove which are matched to enlarge the mowing area is provided, the pin ball (233a) arranged at the root of the charging pin (233) is arranged on the concave half-ball seat, and the coaxial pins of the left pin ball and the right pin ball are respectively positioned in the U-shaped grooves of the left pin ball and the right pin ball, so that the micro-motion follow-up and impact resistance are facilitated; the intelligent mower with the mowing area enlarged by matching the front universal wheel and the half-side guide groove comprises a fixed power supply component with an automatic charging pin insertion component, wherein one side of a bottom plate horizontally paved on the ground surface is provided with narrow guide rails (233c) which are symmetrical along the advancing line of the single-side front universal wheel, a middle groove of each narrow guide rail (233c) can only accommodate the front universal wheel of the single-side front wheel of the mower, the left-right width of each narrow guide rail (233c) is smaller than half of the width of the mower, each guide rail of each narrow guide rail (233c) is in a horn shape containing a cubic curve section of a high-class mathematical function curve, so that the impact is relieved, the front universal wheel is matched with the half-side guide groove to guide the front part of the mower along the left-right side of the advancing line of the single-side front universal wheel, the mowing area is enlarged, and the left-side half of the left-side cutting area or the left-side half of the cutting area or the left-side cutting area is avoided The left half is the injured guide track area. The problem of reliable plug charging in a micro follow-up manner is solved. Just like an automobile needing a gas station, an electric mower also needs a charging station, and an intelligent mower with an automatic charging pin inserted and pulled out is needed in the market, so that the problem that batteries are not durable and need frequent manual charging is solved; when the charging pin is charged to a set value, the mower is started to retreat, and the charging pin is pulled out of the contact piece to cut grass; when the mower is to be recharged, the mower travels to the floor to be recharged. It is an advance in the art to use cubic curves and to use logarithmic spirals.

Drawings

the invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic view of a string-excited motor electric mower with a reel mounted at the front.

FIG. 2 is a schematic diagram of the electric circuit (without the battery) of the string-excited motor electric mower with the reel.

FIG. 3 is a schematic view of a string-excited motor electric mower with a reel installed in the middle.

FIG. 4 is a schematic view of a cutting device assembly with a pull rod and grass cutting head in the middle of the mower with a series motor.

FIG. 5 is a cross-sectional view of a cutting device assembly with a pull rod and a grass cutting head in the middle of the mower with a series motor.

Fig. 6 is a schematic view of a labyrinth pull turret (80) connecting the pull head and pull rotor and thrust bearing.

Fig. 7 is a schematic view of a reel (25-3) of the grass trimmer head.

FIG. 8 is a schematic view of a large pulley (82) of the cutting assembly located in the middle of the mower driven by an offset motor.

FIG. 9 is a schematic view of the pull rod (78) of the cutting assembly with the grass cutting head disposed in the middle of the mower.

Fig. 10 is an exploded view of the grass cutting head.

FIG. 11 is a schematic view of a battery holder assembly.

Fig. 12 is a schematic view of an insulating holder (85) with a fan.

Fig. 13 is a schematic view of a noise-proof nylon thread (134) having a triangular profile.

Fig. 14 is an enlarged schematic view of a noise-proof nylon wire (134) having a triangular profile.

Fig. 15 is an assembly view of the switch case (75b) with the push button (QA), the switch lever (75) and the plug.

Fig. 16 is a schematic view of the pushbutton (QA) of the switch box (75b) having the pushbutton (QA), the switch lever (75), and the latch.

Fig. 17 is an exploded view of the bobbin.

FIG. 18 is a perspective view of a damping dial of the centrifugal slow retraction device.

FIG. 19 is a perspective view of a crank pin with torsion spring of the centrifugal slow retraction device with damping dial.

Fig. 20 is a partially assembled structural view of the bobbin.

Fig. 21 is a schematic plan view of the locking of the inner and outer cam grooves having multiple control points in the near and far directions.

Fig. 22 is a schematic plan view of the drawing of the inner and outer cam grooves having the multiple control points.

FIG. 23 is a schematic view of a damper device having a tap lever and a rack and pinion.

Figure 24 is a schematic view of a side piston damping device with 4 small slides and tension springs and side pistons.

FIG. 25 is a gear mesh and side piston damper cartridge mounting schematic.

FIG. 26 is a cross-sectional view of the helical friction one-way mechanism of the damping device.

FIG. 27 is a cut-away perspective view of the reel and the spiral friction check mechanism of the damper device.

Fig. 28 is a perspective view of the rollers of the racker angle slot damping mechanism.

Fig. 29 is a perspective view of the guide rear bracket (51) having an angular groove.

Figure 30 is a sectional elevation view of the flapper compression spring damping mechanism.

Fig. 31 is a perspective view of a racker.

FIG. 32 is a cross-sectional schematic view of a position lock with a ball.

Fig. 33 is a sectional elevation view of the reverse blocking mechanism.

FIG. 34 is an exploded view of the brake with the function wave disc (206) of the electric mower.

FIG. 35 is a cross-sectional view of the electric lawnmower with a brake having a function wave plate (206) during braking.

FIG. 36 is a cross-sectional view of the electric lawnmower with the brake having the function wave plate (206) when not braking.

Figure 37 is a schematic view of the disc (204b) of the brake with the friction pads (204c) rising progressively as a function of the axial direction.

FIG. 38 is a schematic illustration of a variable angle hub (204b) with an axially increasing friction block (204c) as a function.

FIG. 39 is a side-angled schematic view of a hub (204b) having an axially increasing friction pad (204c) as a function of elevation.

FIG. 40 is a perspective view of the electric mower with the brake removed and the output pulley exposing the inner hub (204 b).

FIG. 41 is a perspective view of an output pulley having multiple teeth (204t) for a brake of an electric lawnmower.

FIG. 42 is an internal schematic view of a radial centrifugal throw (208t) with multiple teeth (209t) of a brake for an electric lawn mower.

Figure 43 is a schematic view of a logarithmic spiral brake with automatic band-brake protection.

FIG. 44 is a schematic view of a logarithmic spiral brake with automatic band-brake protection with parts broken away.

FIG. 45 is a schematic view of a logarithmic spiral brake with automatic band-brake protection with one side friction plate removed.

FIG. 46 is a schematic illustration of a brake lever on one side of a logarithmic spiral brake with automatic band-brake protection.

Figure 47 is a schematic view of a lug plate (227) for a logarithmic spiral brake with automatic band-brake protection.

FIG. 48 is a perspective view of the logarithmic spiral brake with automatic band-brake protection with parts broken away.

FIG. 49 is a perspective view of the back of the logarithmic spiral brake with automatic band-brake protection with parts removed.

Fig. 50 is a perspective view of a logarithmic spiral brake with automatic band-brake protection with pulley (204) removed.

FIG. 51 is a perspective view of the brake ring (201a) mounted on the inner frame and having a plurality of flanges protruding therefrom.

Fig. 52 is a schematic view of a mower with suction and irrigation and fertilization and insecticide application and logarithmic spiral self-braking.

Fig. 53 is a schematic plan view of the suction blower.

Figure 54 is an exploded schematic view of a blow and suction machine.

Figure 55 is a schematic view of a dust bag holder (35).

Fig. 56 is a schematic view of the dust bag holder (35) in a downward direction.

Fig. 57 is a schematic view of the upper shell (2) of the large body.

Fig. 58 is a schematic cross-sectional view of the upper shell (2) of the human body in the C-C direction.

Fig. 59 is a plan view of the auxiliary handle cover (40).

Fig. 60 is a schematic view of the auxiliary handle cover (40).

FIG. 61 is a schematic view of the blower wheel (16).

Fig. 62 is a top view of the assist handle cover (40).

Fig. 63 is a mid-sectional schematic view of the assist handle cover (40).

Fig. 64 is a schematic view of the large upper shell (2) with the auxiliary handle (2b) fixed.

Fig. 65 is a schematic view of the rotating shaft (26).

Fig. 66 is a schematic view of the blow-and-suction changeover plate (23).

Fig. 67 is a schematic view of the dust bag holder 35 with the hook rib 35b added.

Fig. 68 is a schematic view of the blow-and-suction switching knob (27).

Fig. 69 is a schematic view of the switch trigger (5).

Fig. 70 is a front view of the auxiliary handle cover (40).

FIG. 71 is an enlarged edge schematic view of the blower wheel (16).

Figure 72 is a schematic view of a bag binding opening of a dust bag holder.

Figure 73 is a schematic view of a suction blower with an automatic positioner (45) and multiple extension tubes (46).

Fig. 74 is a schematic view of a suction blower with a flexible folding tube (47) and a multiple extension tube (48) for blowing.

Fig. 75 is a schematic view of the automatic positioner (45) and multiple extension tubes (46).

Fig. 76 is an exploded schematic view of a steerable wheel with a wheel carriage (31 a).

FIG. 77 is a schematic view of a multiple extension tube having a multi-link drawbar with one end inturned and the other end inturned.

FIG. 78 is a schematic diagram of a safety circuit with arming.

FIG. 79 is a schematic view of a grass cutting blade.

FIG. 80 is a schematic view of a mowing blade and broom.

Fig. 81 is a schematic view of a smart lawn mower with a charging assembly having an automatic charging pin with an auxiliary guide bar (234 e).

Fig. 82 is a schematic view of the charging pin ((233) and the guide rail (233c) of the base plate) on the front wall.

Fig. 83 is a schematic view showing four contact pieces 234, a pressing piece torsion spring 234a, and a rotation shaft.

Fig. 84 is a schematic view of a smart lawn mower with a charging assembly that automatically plugs and unplugs the contact blades.

Fig. 85 is a schematic view of a charging pin ((233)) standing on the front wall.

Fig. 86 is a schematic view of the root of the charging pin ((233)) standing on the front wall.

Fig. 87 is a schematic view of the charging pin ((233)).

Fig. 88 is a schematic view of a sheeting torsion spring (234 a).

Fig. 89 is a schematic view of the bottom of a smart lawn mower with a charging assembly that automatically plugs in and plugs out a contact strip.

Fig. 90 is a schematic view of the contact surface ((234 b)) of the contact piece (234).

FIG. 91 is a schematic view of a half guide groove.

FIG. 92 is a schematic view of a smart lawn mower with front gimbaled wheels.

As shown, in the figure:

1. Is a small slide block; 2. is a tension spring; 3. is a damping box housing; 4. is a bull gear; 5. is an inner disc; 6. is a damping turntable; 7. is a small piston; 8. is a compression spring; 9. is a pinion gear; 10. is a crank pin; 11. is a spiral spring; 12. is an upper large disc; 13. is an upper shell; 14. is a main wheel; 15. is a pipe joint; 16. is a lower disc; 17. is a lower shell; 18. is a long pin; 19. is a stent; 20. is a lower small end cover; 21. is an upper small inner cover; 22. is an upper small outer cover; 105. the helix angle is more than 23.5 degrees; 106. is a spiral shaft with a spiral angle more than 23.5 degrees; 23. is a reverse resistance turntable; 24. is a reverse block; 25. is a pin shaft; 26. is a torsion spring (26); 41. is an arc-shaped rack; 42. is a gear meshed with the arc-shaped rack; 43. is a poke rod; 51. is a guider rear bracket; 52. is a guider front bracket; 53. is a pipe arranger; 54. is a roller shaft core cover; 55. is a roller; 61. a flap (61) which is a flap pressure spring mechanism; 62. a pressure spring (62) which is a flap pressure spring mechanism; 63. a damping box shell (63) of a flap pressure spring mechanism; 64. is a dense thread shaft (64) of a flap pressure spring mechanism; 65. a damping box cover (65) of a flap pressure spring mechanism; 63a, a convex guide rail (63a) of a damping box shell (63) of the flap pressure spring mechanism; 70. is a ball (70) with a ball position lock; 71. a position lock case (71) having an axially elongated slot (71a) with a ball position lock; 72. is a lock cylinder (72) of a ball position lock; 73. a torsion spring (73) having an L-shaped end (73a) and a U-shaped end (73b) for a ball position lock; 74. is a lock cylinder (74); 25-1, is a reel spring; 25-3, is a reel; 134. is a nylon thread; 25-3b. is a reel aluminum head; 25-6, is a line eye insert; 25-7, is the upper cover of the line box; 126. is a blade sleeve; 127. is a blade; RC. is insurance; K. is a switch; l3 is inductance L3; l4 is inductance L4; C. is a capacitance C; l1 is winding L1; l2 is winding L2; m is a series motor; AQ. is start button; 75. is a handle 75; di. are diodes; r1 is resistance R1; r2. is electrical R2; LED is a light emitting tube LED; 90c, a stationary slide 90c which is a stand base; 90a, is a slide bar 90 a; 90b is a limit 90 b; 90. is a living support 90; 90c, is a stationary slide 90 c; 85. is a tool apron 85; 85a, is spline groove 85 a; 82. is a large pulley 82; 82a, is spline 82 a; 85d, fan 85 d; so as to guide wind; 85c, is a small through hole 85 c; 85b is a cutting edge 85 b; 76. is an inner frame; 77. is a series motor; 84. is a motor pulley; 83. is a belt; 82. is a large belt pulley; 81. is a pull wire; 78. is to pull the rotating rod; 79. is a thrust bearing; 80. is a pull turret 80 with a labyrinth; 24-3, the grass head shell 24-3; 123. is the guard coil 123; 34a is a notch 34 a; 81. is a pull wire 81; 81b. is a pay-off lever 81 b; 80c, is a pull stem hole 80 c; 80b, a slot 80 b; 80d. is the central bore 80 d; 80a, is maze 80 a; 75b. plug receptacle 75b with handle 75; the head of the handle 75 is provided with a hook; QA2. is long flake QA 2; QA1 is briquette QA 1; QA3 is a limiting sheet QA 3; 201a, a brake ring; 203. an output shaft; 204. a belt wheel at the center of the cutting disc; 206. a brake pad; 207. a brake fixing plate; 208a, a brake lever; 209. a friction plate; 210. a brake tension spring; 211. a cable; 216. a machine thread screw; 218. a hex screw; 219. a hexagonal nut; 215. riveting; 223. solid rivets; 224. a groove edge; 224a. a lug assembly; 224b. a bump paddle; 224c. lower arc; 224d, upper arc; 225. returning and drawing the hole; 226. rotating the hole; 227. a lug drive plate; 228. a reset seat; 228a, resetting the pressure spring; c1. is a self-tapping screw; c2. is a large upper shell; c3. is a power line; c4. is a cable sheath; c5. is a switch trigger; c6. is a switch trigger spring; c7. is a terminal block; c8. is a cable platen; c9. is a capacitance; c10. is a self-tapping screw; c11. is a main switch; c12. is a speed regulator; c13. is a rubber gasket; c14. is a motor; c15. is a fan blade gasket; c16. is a blower wheel; c17. is a hexagonal nut; c18. is a fan blade plug sheet; c19. is a self-tapping screw; c20. is a rotating shaft cover; c21. is a spring; c22. is a retainer ring; c23. is a blowing-sucking conversion plate; c24. is a bottom shell of the big body; c25. is a safety switch; c26. is a rotating shaft; c27. is a blowing-sucking conversion knob; c28. is a side button; c29. is a torsion spring; c30. is a torsion spring shaft; c31. is a telescopic tube; c32. is a retainer ring for a shaft; c33. is a wheel; c34. is a wheel axle; c35. is a dust bag holder; 36. is a dust collecting bag; c37. is a hexagon head bolt; c38. is a square auxiliary handle knob; c39. is a self-tapping screw; c40. is an auxiliary handle cover; c41. is an auxiliary handle bottom; c42. is an M6 nut; c43. is a harness; c44. is a nylon cable tie; c45. is an elastic collision bead automatic positioner; c46. is a multi-extension pipe; c47. is a flexible folded tube; c48. is a blown out multi-extension pipe; c2a, is a soft tablet; c2b is the original auxiliary handle; c16a. is the top edge; c16b. is a side peripheral edge; c31a. is a wheel axle carrier; c35a. is a hook; c35b, a hook rib; c35c. is hook backlash; c35d. is a big bag ring; c35e. is a small pocket ring; c40a. is an arc-shaped communicating handle; c40b, is radial dentate arris; RC. is a fuse RC; K. is a double-pole switch K; l is the inductance L; C. is a capacitance C; m is a series excited motor M; TC. is a triac TC; is a bidirectional thyristor DC; r1 is resistance R1; r2 is resistance R2; r3 is variable resistance R3; C2. is the capacitance C2; K3. is a speed regulating switch K3; 234e. auxiliary guide bar; 233c, a guide rail; 233. is a charging pin; pin ball 233 a; an insertion face (233 b); 234d. a sensor; 234. a contact piece; 234a, a tablet torsion spring; 234a, a tablet torsion spring; 234b. contact surface.

Detailed Description

Firstly, building a computer 3D mould and then engraving the mould; and then add anticollision and brake on the lawn mower, its technical equation and modeling method are:

Set-up PARAMETER (PARAMETER) 1: real number (real number) of C, which can be assigned between 0.01 and 1, for example 0.3, according to specific working conditions; c is also known as the wave height. Set-up PARAMETER (PARAMETER) 2: n integer (integer), selected between 2-100 according to the specific working condition, for example 13; n is also called the wavenumber. The relationship (relationship) is established, and the sine wave equation according to the present invention is: computer default SDi ═ C × SIN (TRAJPAR × 360 × N); in the above formula, i is a size number serial number; SIN ═ SINE, SINE function; TRAJPAR, trace function. And then modeling as a function wave disc by adopting instructions of rotation, combination, materialization and the like.

it should be particularly noted that the functional waveform of the present invention may also be implemented by various other mathematical functions in combination with rough asperities, or other somewhat rounded waveforms other than sharp fold lines.

The operating walker uses a mower with a suction blower, preferably wearing protective glasses and a mask, and also connects the shoulder straps 43 to the operating handle and the housing; pulling out the telescopic pipe for blowing and sucking, adjusting the rotating speed and adjusting the auxiliary handle; the power is checked, a lithium battery or a power long wire is matched, the safety is checked again, a trial is made according to a use specification, no cullet or electric wire exists in a leaf area, the mower with the blowing and sucking machine can be used for making the safety, and meanwhile, the weather and rain condition needs to be noticed.

The invention is a great improvement of the common lawn mower used for trimming lawns in courtyards, parks, roadside and other places, and the main improvement is that the front part of the lawn mower is provided with a support which can be movably drawn out and is used for placing a storage battery; the cutting device arranged in the middle of the mower is dragged by a series excited motor which is not arranged in the center but is offset; the cutting device can be divided into two types, one type is a knife with a fan plastic knife holder, and the other type is that the nylon wire of a reel in a rotating wheel on the original grass mower is transplanted to the grass mower; because the offset series excited motor gives way to the position of the central shaft, the central pull wire of the invention can be used for pulling the rotating rod, so that the aluminum head of the reel can be paid off, thereby breaking the history that the nylon wire cutting device of the grass cutting head can not be used for the mower; and because the winding device with various damping mechanisms is adopted, namely the winding device is complemented by a centrifugal slow retraction device, a side piston damping device, a position lock, a movable plate pressure spring damping mechanism, a reverse resistance mechanism and a pipe arranger angle groove type damping mechanism, the mowing range of the common electric mower with the electric wire is greatly increased. Perhaps speaking, the new technical field of the mower with the grass mowing head and the reel is created. The multifunctional mower has the beneficial effects of solving the problems of counterweight, power supply and mowing.

A series excited motor electric mower is a mower with both a mowing head and a winder, and is detailed as follows:

The storage battery bracket assembly arranged on the series excited motor electric mower is a bracket which is movably drawn out and used for placing a storage battery and is arranged at the front part of the lawn mower; the storage battery bracket assembly is composed of a fixed sliding seat 90c fixedly arranged on a bracket base at the bottom of the mower, a movable bracket 90 which can be pulled out and is provided with a sliding rod 90a and a limiting 90b, and a storage battery which is not shown and is provided with a charger and an inverter, wherein the sliding rod 90a of the movable bracket (90) is sleeved in the fixed sliding seat 90c of the bracket base, and after being pulled out and positioned by the limiting 90b, the storage battery can be placed on the movable bracket, and any counter weight can be placed on the movable bracket. The operator can select the storage battery and can use the external power supply instead of the storage battery through the winder so as to mow in a lawn area with multiple trees or under the condition of temporary power failure.

The cutting device assembly arranged in the middle of the electric mower of the series excited motor is dragged by the offset series excited motor which is not arranged in the center; the cutting device can be divided into two types, one type is a knife with a fan plastic knife holder, and the other type is that the nylon wire of a reel in a rotating wheel of a grass cutting head on the original grass cutting machine is transplanted to the grass cutting machine; because the offset series excited motor gives way to the position of the central shaft, the rotating rod can be pulled by the central pull wire, so that the aluminum head of the reel is paid off, and the history that the nylon wire cutting device of the grass cutting head cannot be used for the mower is broken; the knife with the fan plastic knife holder for the series-excited motor electric mower is characterized in that the knife holder of the plastic fan is arranged on the mowing knife at the center of the mowing machine, referring to fig. 12, a spline groove 85a is formed in the knife holder 85 so as to be matched with a spline 82a of a large belt wheel 82, and the knife of the knife holder can cut grass under the driving of an offset series-excited motor; a plurality of fans 85d are arranged on the cutter holder 85 so as to guide air; the fan is provided with a plurality of small through holes 85c, preferably hexagonal holes, so as to facilitate noise reduction; the fan is provided with a cutting edge 85b to prevent grass winding; the blade holder is preferably made of a non-conductive material, such as nylon and fiber-reinforced plastic.

The cutting device assembly arranged in the middle of the electric mower of the series excited motor is dragged by the offset series excited motor which is not arranged in the center; the cutting device can be divided into two types, one type is a knife with a fan plastic knife holder, and the other type is that the nylon wire of a reel in a rotating wheel of a grass cutting head on the original grass cutting machine is transplanted to the grass cutting machine; because the offset series excited motor gives way to the position of the central shaft, the rotating rod can be pulled by the central pull wire, so that the aluminum head of the reel is paid off, and the history that the nylon wire cutting device of the grass cutting head cannot be used for the mower is broken; the cutting device assembly with the grass cutting head and the central pull wire pulling rotating rod arranged in the middle of the series excitation motor electric mower is composed of an inner frame 76, a series excitation motor 77, a motor belt pulley 84, a belt 83, a large belt pulley 82, a pull wire 81, a pulling rotating rod 78, a thrust bearing 79, a pull rotating frame 80 with a labyrinth and the grass cutting head, and refers to fig. 4 and 5; the grass cutting head, also called as a coiling grass cutting assembly with a wire box base, can be seen from a figure 10 and consists of a grass cutting head shell 24-3, a reel spring 25-1, a reel 25-3, a nylon thread 134, a protective coil 123, a thread eye inserting piece 25-6 and a wire box upper cover 25-7; the blade 127 is arranged on the circumference of the cutting disc of the mower, and the blade sleeve 126 is placed on the blade 127 when not used, so that the protection effect is achieved; originally, a firm reel aluminum head 25-3b is used, when the thread is short, an operator presses the reel aluminum head 25-3b to touch the ground, a reel spring 25-1 is compressed, the reel 25-3 rotates, the nylon thread 134 in the reel is led to pass through a thread eye insert piece 25-6 to pay off the thread, and the excess thread is trimmed by a blade 127; instead of pressing the ground, the aluminum head 25-3b of the reel can be saved, and the central pull wire is used for pulling the rotating rod to lead the reel to pay off; the paid-out excess length of thread is trimmed by blade 127; the nylon thread 134 is preferably a shaped multi-grooved line of a grass trimmer, the shaped line being characterized by having notches 34a in cross-section, at least one, or a plurality, e.g., 3; the notches are spiral along the nylon line and are evenly distributed along the circumference in equal parts; the notches are triangular, so that the mowing is facilitated; the inner frame 76 is arranged above a cutting disc of a chassis of the mower, a motor belt pulley 84 is arranged on a shaft of an offset series motor 77, and a belt 83 is used for driving a large belt pulley 82 with a central line at the center of the cutting disc of the chassis; the big belt pulley 82 drives the grass mowing head; the big belt pulley 82 is sequentially connected with the grass cutting head shell 24-3, the thread eye inserting piece 25-6 and the thread box upper cover 25-7, a thread winding wheel 25-3 is pressed in the grass cutting head shell 24-3 through a thread winding wheel spring 25-1, and a nylon thread 134 and a protective coil 123 are arranged on the thread winding wheel 25-3; the pull rotating rod 78 is connected with the reel 25-3 or fixedly connected with the reel, or connected with a shaft collar, or connected with a reverse screw thread, or connected with a thrust bearing; the other end of the pulling rotary rod 78 is connected with a pulling rotary frame 80 with a labyrinth through a thrust bearing 79, one end of a steel wire rope of the pull wire 81 is sleeved on the pulling rotary frame 80, and the other distal end of the pull wire is connected with a pay-off control lever 81b at the side of a large handrail of the mower; when the line is paid off, the pull line pulls the rotating rod, referring to fig. 7, so that a plurality of bosses on the reel are moved upwards to be separated from a plurality of holes of the upper cover 25-7 of the line box, and the reel rotates relative to the grass cutting head shell to pay off the line; when grass is cut, the whole grass cutting head rotates at the same time, and the reel does not rotate relative to the grass cutting head shell and does not pay off; the labyrinth pulling and rotating frame 80 is in a square frame shape, so that the frame is not easy to deform and can be easily deformed due to the long-term use of a single side; a hole 80c for pulling the rotary rod is arranged below the rotary rod so as to place the thrust bearing 79 and the insertion rod, and a long hole 80b is arranged on the side surface of the rotary rod so as to place a thread pulling head; the upper surface of the steel wire rope is provided with a central hole 80d for placing a pull wire, particularly, the upper surface of the steel wire rope is provided with a labyrinth 80a which is provided with a plurality of curved paths and is connected with the long hole and the central hole, so that a thick end of the steel wire rope of the pull wire is firstly placed into a square frame of the pull rotating frame 80 through the long hole 80b, and then the steel wire rope of the pull wire is wound along the plurality of curved paths of the labyrinth 80a and enters the central hole, and therefore the steel wire rope is not easy to loosen.

The circuit diagram of the series motor electric mower is mainly composed of a fuse RC, a switch K, an inductor L3, an inductor L4, a capacitor C, a series motor M with a winding L1 and a winding L2, a starting button AQ, a handle 75, a diode Di, a resistor R1, a R2, a light-emitting tube LED, a winder and a plug socket, as shown in figure 2, the invention is specially added with the fuse RC, a thermal relay or an overcurrent protector to achieve safety, and the fuse RC is added to the power supply to ensure that the power supply is safe, and the fuse? is added to the power supply to supply multiple places, so that the fuse is usually too large and is not just suitable for the mower.

Referring to fig. 15, 16 and 1, the start button AQ and the head of the handle 75, as well as the diode Di, the resistors R1 and R2, the light emitting tube LED, the switch K and the plug, and the respective return springs of the above-mentioned components are all mounted on the plug base 75b with the handle 75 of the mower handrail frame; the head of the handle 75 is provided with a hook; the starting button AQ is provided with a long sheet QA2, a pressing block QA1 is connected with the long sheet QA2, and a limit sheet QA 3; when the starting button AQ is pressed down and the handle 75 is pulled, the hook head arranged on the head of the handle 75 presses the pressing block QA1 of the starting button AQ, and the pressing block QA1 of the starting button AQ presses the switch K, so that the starting button AQ can be started; when the door is closed, each part can be elastically reset by pulling the handle 75; the diode Di, the resistors R1 and R2 and the LED of the luminous tube only have the function of an indicator light; one end of the winder is connected with a power supply, the other end of the winder can be connected with a plug on a plug seat 75b with a handle 75 and is connected with a motor through a switch K.

An operator selects a mode of placing a bracket 19 which is connected by a long pin 18 and can rotate slightly within 180 degrees on the shell of a winding device consisting of a wheel shell assembly, a centrifugal slow retraction device, a side piston damping device, a position lock, a reverse damping mechanism and an angle groove type damping mechanism on a pipe arranger on the winding device with a plurality of damping mechanisms at the front part or the middle part of the mower for assembly; as shown in fig. 1 or fig. 3; or a vertical shaft can be arranged at the front part of the mower, and a hole is arranged in the middle of the bracket 19 and sleeved on the vertical shaft for assembly; or a vertical shaft is arranged in the middle of the mower, and a hole is arranged on the middle shaft part of the reel and sleeved on the vertical shaft for assembly; the power supply is plugged and fixed; when the operator is turning around, he or she preferably turns the line from the front of the mower, rather than from the back, i.e. to take care not to get a clunk. Depending on the grass clutter and distance, the operator may also choose to use several or those damping mechanisms for the spool, since there is space around the fixed gear wheel 4 to place several small gears 9 to connect the damping mechanisms and position locks. Or the lithium battery can be replaced. Because the wheel shell assembly consists of an upper shell 13, an upper large disc 12, a spiral spring 11, an inner disc 5, a large gear 4, a main wheel 14, a joint 15, a lower disc 16, a lower shell 17, a long pin 18 and a bracket 19. A lower disc 16 and an inner disc 5 which are provided with rotating shafts are arranged in a hole of a central shaft of the shell; the inner disc 5 and the upper large disc 12 form a retraction device through a spiral spring 11; an upper small inner lid 21 is inserted over the inner disc 5 and is then fixedly attached to the upper shell 13 by an upper small outer lid 22. The groove on the shaft of the fixed inner disc 5 is fixedly provided with one end of a spiral spring 11 close to the center of a circle, the outer ring of the spiral spring is assembled on a clamping column at the edge of a rotating main wheel 14 and is covered by an upper large disc 12 through four clamping positions at the edge. The bull gear is stationary. When an operator pulls the pipeline, the upper large disc 12, the main wheel 14, the pipe joint 15 and the lower disc 16 are rotated relative to the outer shell because the main wheel 14 is provided with the pipe joint 15, the pipeline is installed on the pipe joint and is wound on the main wheel through 2 rollers of the pipe arranging device, the main wheel 14 and the lower disc 16 are fixedly connected into a whole through screws, and the main wheel 14 and the lower disc 16 are rotatably sleeved and inserted on a smooth outer shaft surface of a central large pipe of the lower disc 17 through a central large pipe shaft of the lower disc 16; one end 30 of the crank pin 10 is driven by the pinion 9 and the rotary disc 6 to run along the cam-like groove on the bottom surface of the damping box shell 3; when the pulling is stopped, the pin end 30 of the crank pin is locked due to the reaction of the spring; the point is pulled again and loosened, the pin end 30 is unlocked along the outer ring groove, and the hose or the cable is automatically rewound under the reaction force of the clockwork spring 11; if it is too fast, the high speed pinion 9, which acts like a planet wheel, causes the small slide 1 to extend centrifugally, damping in contact with the shell edge and with the small piston 7. The small sliding blocks 1 which are mutually pulled by the tension springs 2 and extend along the slide ways 6a of the damping rotating disc 6, particularly the involute surfaces and the parabola surfaces of the peach-shaped bodies of the small sliding blocks 1, fish collide, mesh, slide and rub with the small pistons 7 and the interior of the damping box shell 3, and the slow retraction damping effect is enhanced by a plurality of actions.

The scheme of the continuous new conception is that in the used reel, by utilizing the characteristic that a large gear 4 which is fixed in the middle can be provided with a plurality of pinions 9 to rotate around the large gear, another damping box shell is additionally arranged, or the used slow retraction damping device is replaced. The movable plate pressure spring mechanism consists of a pinion 9, a dense thread shaft 64 driven by the pinion 9, a movable plate 61, a pressure spring 62, a damping box shell 63 and a damping box cover 65; the method is characterized in that: the dense thread shaft 64 is provided with threads; the thread is preferably a fine standard thread, the fine thread is beneficial to shortening the shaft stroke, and the standard thread is beneficial to processing; the flap 61 is provided with internal threads so as to move up and down in linkage with the thread-sealing shaft 64; said flap 61 is provided with a plurality of external grooves, preferably 4, to slide with a plurality of convex guides 63a inside the damping capsule 63; the compression spring 62 is arranged below the flap 61, and the other end of the compression spring 62 is in contact with the inside of the damping box shell 63; the damping box shell 63 is assembled on the main wheel 14; the damping box cover 65 is assembled on the damping box shell 63, so that when the main wheel 14 retracts, the movable plate 61 moves downwards by the dense thread shaft 64 driven by the pinion 9, and the compressed spring 62 is pressed in the box of the damping box shell 63 to play a damping role; when the main wheel 14 is pulled out from the pipeline and rotates reversely, the close thread shaft 64 driven by the pinion 9 moves the flap 61 upwards, so that the pressure spring 62 is less pressurized in the box of the damping box shell 63; in this way, the winding device of the multi-damping mechanism with the pressure spring mechanism is formed.

In the other damping box shell, a screw shaft 106 driven by the same other pinion 9 is arranged and is connected with an inner spiral friction wheel 105 by a spiral with a spiral angle more than 23.5 degrees; when the shaft rotates forward, the wheel moves downwards to rub the bottom of the shell, and conversely moves upwards; the damping effect of the spiral friction type one-way mechanism of the damper is formed.

Meanwhile, in the other damping box shell additionally arranged, the reverse resistance rotary disc 23 rotates under the drive of a plurality of identical pinion gears 9 arranged on the periphery of the large gear 4; the reverse resistance mechanism of the winding device with various damping mechanisms comprises a reverse resistance rotary disc 23, a reverse resistance rotary block 24, a torsion spring 26, a pin shaft 25 and a pinion 9. The reverse resistance turntable is characterized in that a movable reverse resistance rotating block 24 is sleeved with a pin shaft 25 inserted into a plurality of especially 4 uniformly distributed holes 23c of a pin shaft 25 of the reverse resistance turntable, under the action of a torsion spring 26 inserted into one end of a plurality of especially 4 uniformly distributed small holes 23b for placing the torsion spring and the other end of the torsion spring, the small cambered surface 24c of the reverse resistance rotating block 24 does not touch the inner wall of the damping box shell at ordinary times, but a chord surface 24d of the reverse resistance rotating block 24 is close to the inner wall, namely, the reverse resistance rotating block is not blocked when being pulled out in the forward direction, and a limiting protrusion 24a of the reverse resistance rotating block 24 is matched with a limiting block 23a of the limiting turntable. However, when the reverse rotation preventing block 24 retracts reversely, the reverse rotation preventing block 24 will be centrifugally deflected by the action of centripetal force at a high speed, so that the small arc surface 24c of the reverse rotation preventing block 24 touches the inner wall of the damping box shell, thereby causing the reverse rotation preventing effect.

Because 2 holes of the guider rear bracket 51 for placing 2 roller core covers 54 of the pipe arranger 53 arranged at the outlet of the upper shell 13 and the lower shell 17 of the winding device are changed into long circular grooves with an angle a as shown in fig. 29, 2 shaft centers of the roller core covers form the variable-tightness angle groove type damping mechanism with the roller loose when the pipe is pulled out along the angle groove 51a and the roller tight when the pipe is pulled in along the angle groove 51 b. When the operator pulls out the wire, the roller receives an outward frictional force component, so that the roller spindle cover 54 housing the roller 55 approaches along the angle groove 51a when pulled out; the roller axle core cover 54 arranged in the angle slot of the guider rear bracket 51 of the pipe arranger 53 can be changed into a moving distance from the original distance of 2 axle cores by referring to fig. 24; a pulling block 54a arranged outside the circumference of each cover and a small tension spring hole 54c arranged on each pulling block are lightly pulled by inserting two ends of a tension spring 54b with smaller tension into the small tension spring holes respectively; 2 rollers 55 are arranged in the roller shaft core cover, and a movable pipeline is arranged between the two rollers; the front guide bracket 52 and the rear guide bracket 51 of the pipe arranger 53 together form an angular slot for placing the roller core cover, i.e. a long circular slot with an angle a with each other as shown in fig. 23, thus forming the effect that 2 axes of the roller core cover are far along the angular slot 51a when the pipe is pulled out, i.e. the roller is loose. When the pipeline retracts, because the angle a of the long circular grooves which are provided with the angle a and are arranged in the angle grooves, and the roller shaft core covers (as shown in figure 23) are arranged between 1 degree and 23 degrees, and because the pipeline is bent leftwards after being fed, the included angles between the two sides which are provided with the angle a and are respectively arranged with the vertical line are that the left included angle beta is smaller than the right included angle gamma, when the pipeline retracts, the roller is subjected to inward friction component force, the roller shaft core cover 54 arranged with the roller 55 is drawn in to be close to the angle groove 51b, the angle grooves arranged with the roller shaft core covers enable the 2 shaft cores of the roller shaft core covers to be close, and thus the angle groove type damping mechanism with the variable tightness of the roller is formed when the angle groove 51b is close.

Because the technical scheme of the pipe winding device with the ball position lock and the multi-damping mechanism for solving the problem of the lock at any position can be called as the ball position lock, the key of the technical innovation lies in the ball; the scheme of the new conception is that in the used reel, the characteristic that a plurality of small gears 9 can be arranged around a fixed large gear 4 in the middle to rotate is utilized, the pipe winding device with the ball position lock and the multi-damping mechanism is additionally arranged, and the ball position lock consists of the small gears 9, a lock core shaft 74 driven by the small gears 9, a ball 70, a torsion spring 73, a lock core 72 and a position lock box shell 71; the position lock box shell 71 is assembled on the main wheel 14, the torsion spring 73 is sleeved on the lock core shaft 74, and the torsion spring is normally tightly sleeved on the position lock box shell; the lock cylinder 72 is movably sleeved on the torsion spring 73 and the lock core shaft 74 and is arranged in the position lock box shell 71; the lock core 72 is provided with an eccentric heart-shaped lock groove, the eccentricity is convenient for the ball in the groove to move in the forward direction, and the concave bottom of the heart shape is the position of the lock when the ball enters; the method is characterized in that: said ball 70 is smooth, preferably a steel ball; because the ball 70 has the characteristics of six degrees of freedom, namely three translational degrees of freedom and three rotational degrees of freedom, the ball has less component torque than a crank pin or a lock needle when moving, and is less prone to being accidentally stuck. The torsion spring 73 is a tight coil, has a circular section, is convenient for processing a multi-bent L-shaped end 73a and a U-shaped end 73b, and is also convenient for being not easy to wear the mandrel due to square twisted edges during working. The end 73a of the torsion spring 73 is L-shaped, so that the torsion spring is convenient to be clamped above the lock cylinder 72; the other end 73b is U-shaped and has two sides, so that the ball 70 can be pushed conveniently; and because the end 73a of the torsion spring 73 is clamped on the lock core 72, and the end 73b of the torsion spring 73 extends into the square hole of the heart-shaped lock groove of the lock core 72 close to the heart tip part and contacts with the ball 70; the ball 70 is movably installed in the axial long groove 71a of the position lock box shell 71 and the heart-shaped lock groove of the lock core 72, and is in contact with the end 73b of the torsion spring 73 which is sleeved on the lock core shaft 74 and extends out of the lock core 72, so as to be linked with the heart-shaped lock groove of the lock core 72 to move up and down along with the axial long groove 71a of the position lock box shell 71, and the aim is that when the ball 70 pushes the end 73b of the torsion spring 73 to a certain position, the inner diameter of a tight ring of the torsion spring is increased, so that the lock core shaft 74 driven by the pinion 9 is loosened, and a pipeline is free; when the ball 70 falls to the locked position and does not push the end 73b of the torsion spring 73, the inner diameter of the tight circle of the torsion spring is reduced to tightly wrap the lock core shaft 74 driven by the pinion 9, so that the pipeline is fixed; thereby forming the winding device with the ball position lock and the multi-damping mechanism. When an operator pulls the pipeline, the upper large disc 12, the main wheel 14, the pipe joint 15 and the lower disc 16 are rotated relative to the outer shell because the main wheel 14 is provided with the joint 15 on which the pipeline is installed and wound, the main wheel 14 and the lower disc 16 are fixedly connected into a whole through screws, and the central large pipe shaft of the lower disc 16) is rotatably sleeved and inserted on the smooth outer shaft surface of the central large pipe of the lower shell 17; the main wheel 14 carries the pinion 9 when the pipeline is pulled out. When the ball is stopped, the ball 70 can touch the concave bottom of the heart-shaped lock groove along the eccentric heart-shaped lock groove (eccentric so that the ball in the groove moves in the forward direction) arranged on the lock core 72 due to the reaction of the spring, and the ball is in the locking position when entering and is locked; the point is pulled again and the line is released, without lock, the hose or cable automatically recoils under the reaction force of the spring 11. Under certain conditions, if the left-right rotation angle is too large, the middle part of the reel shaft or the vertical shaft for installation can be provided with a joint of the double-slip ring belt carbon brush, so that certain wires which are hard to be subjected to the copper-aluminum wire Brinell test can be protected.

Because the anti-collision safety device arranged at the front part of the chassis of the mower is arranged on the movable bracket (90) of the bracket assembly on the electric mower and consists of a fixed sliding seat (90c) arranged on a bracket seat of the chassis of the mower and a movable bracket (90) which can be pulled out and is provided with a sliding rod (90a) and a limit (90b), the sliding rod (90a) of the movable bracket (90) is sleeved in the fixed sliding seat (90c) of the bracket seat and is positioned by a limit (90b) when being pulled out, it is characterized in that the movable bracket (90) is covered by rubber, and the limit switch is arranged on the limit (90b), so that when the rubber coating of the movable bracket (90) is collided in front and the sliding rod (90a) of the movable bracket (90) is retracted, the limit switch arranged on the limit (90b) is triggered to form an anti-collision safety device for safety; the brake arranged at the middle part of the mower chassis of the series motor electric mower comprises an inner frame (76) arranged above a cutting disc of the mower chassis, an offset series motor (77) is arranged on the inner frame, a motor belt pulley (84) is arranged on a shaft of the offset series motor (77), and a belt pulley (204) with a central line at the center of the cutting disc of the chassis is driven through a belt (83); an output shaft (203) which is connected with the coaxial center in a clutching way, and a function wave disc brake pad (206) for braking is fixed on the belt wheel (204) by a machine thread screw (216); a brake fixing plate (207) is fixed on the inner frame (76) and is fixed with a hexagon screw (218) and a hexagon nut (219); a movable brake rod (208) is arranged on the brake fixing plate (207), and is connected through a rivet (215) and can flexibly rotate; the brake rod (208) is provided with a friction plate (209) which is connected by a solid rivet (223), and the friction plate (209) and a function wave disc brake plate (206) for braking on the belt wheel (204) are braked and tensioned by a brake tension spring (210) acting on a brake fixing plate (207) and the brake rod (208); the brake lever (208) is connected with the operating handle by a pull rope (211) so as to brake and clutch; when the pull rod is started to start the machine, the pull cable drives the brake rod to rotate, so that the friction plate is separated from the brake plate, the brake tension spring is stretched, the brake tension spring accumulates elastic force, after the pull rod is started to release, the power supply is cut off, the belt pulley loses power, the brake tension spring releases the elastic force, the friction plate tensions the brake plate, the belt pulley stops rotating, and the brake function is achieved. The series motor electric mower with the logarithmic spiral brake with automatic band-type brake protection is characterized in that the series motor electric mower is provided with the logarithmic spiral brake; it is also characterized in that the device is provided with a pipe coiling device which can be used for irrigating, fertilizing and spraying pesticide and is provided with a pipeline through which liquid passes; the brake comprises an inner frame (76), a motor (77) is arranged on the inner frame, a motor belt pulley (84) is arranged on a shaft of the motor (77), and a belt pulley (204) with a central line at the center of a cutting disc of a chassis is driven through a belt (83); an output shaft (203) which is coaxially connected with the output shaft in a clutching way, wherein the output shaft (203) is connected with a working cutter such as a mowing knife; one end of a brake tension spring (210) is fixed on the belt wheel (204) by a machine tooth screw (216), and the other end of the brake tension spring (210) is connected with a return pull hole (225) of a brake rod (208a) for braking; the brake rod (208a) is provided with a rotating hole (226) and is connected in the belt wheel (204) through a rivet and can flexibly rotate; a friction plate (209) is arranged on the brake lever (208 a); the inner frame is provided with a fixed brake ring (201 a); a coaxial lug drive plate (227) is sleeved outside the output shaft (203); a lug dial seat (224b) is arranged at the edge of the lug dial (227); a reset seat (228) is further arranged at the edge of the lug drive plate (227) so as to be convenient for installing a reset pressure spring (228a) for resetting; the lug shifting seat (224b) is provided with a lug assembly (224 a); the brake rod (208a) is provided with a hollowed arc-shaped groove which is surrounded by an upper arc (224d), a groove edge (224), a lower arc (224c) and another groove edge (224) in sequence; the upper arc (224d) is a semicircular arc, and the distance from the center of the circle to the axis of the output shaft (203) is longer than the distance from the center of the circle of the lower arc (224c), which is also a semicircular arc, to the axis of the output shaft (203), so that the groove edge (224) of the arc-shaped groove is not along the concentric circumference along the axis of the output shaft, but is eccentric, and a substantial cam is formed; inserting a lug assembly (224a) on the lug drive plate (227) into the arc-shaped groove and sliding along the groove edge (224), so as to form a substantial cam structure; when the series excited motor stops rotating, although the series excited motor is internally provided with electromagnetic scram, the mowing knife has large inertia and is difficult to scram, and a brake is needed in order to scram the mowing knife to meet safety regulations; when the series motor stops rotating, the belt wheel (204) driven by the motor stops rotating, the brake lever (208a) loses the inertial centrifugal force thrown outwards, rotates through the rotating hole (226) and the rivet, and rotates to return through the return pulling hole (225) of the brake lever (208a) connected with the brake tension spring (210), so that the friction plate (209) arranged on the brake lever (208a) is used for braking the fixed brake ring (201a) arranged on the inner frame; when the brake lever (208a) rotates back, a hollowed arc-shaped groove which is surrounded by an upper arc (224d), a groove edge (224), a lower arc (224c) and another groove edge (224) in sequence is arranged on the brake lever (208 a); because the upper arc (224d) is a semicircular arc, and the distance from the center of the circle to the axis of the output shaft (203) is longer than the distance from the center of the circle of the lower arc (224c), which is also a semicircular arc, to the axis of the output shaft (203), the groove edge (224) of the arc-shaped groove is eccentric instead of following the concentric circumference along the axis of the output shaft, so that a substantial cam is formed; a lug block component (224a) on the lug drive plate (227) which is inserted into the arc-shaped groove and slides along the groove edge (224) is pressed from the upper arc (224d) to the lower arc (224c) according to the principle of a substantial cam structure, and a coaxial lug drive plate (227) is sleeved outside the output shaft (203), so that a working cutter such as a mowing knife connected with the output shaft (203) stops rotating; on the contrary, when the series motor rotates, the belt wheel (204) driven by the motor rotates, the brake rod (208a) is subjected to an inertial centrifugal force thrown outwards, the brake rod (208a) rotates by taking the rotating hole (226) as a pivot through the rivet, a friction plate (209) arranged on the brake rod (208a) is separated from a fixed brake ring (201a) arranged on the inner frame, and meanwhile, a reset seat (228) is arranged at the edge of the lug dial (227), so that the reset pressure spring (228a) which is convenient to install is reset. Improve perfect more the series motor electric mower of logarithmic spiral brake that has automatic band-type brake protection, characterized by: the fixed brake ring (201a) arranged on the inner frame is metal, so that the heat resistance and the wear resistance are facilitated; and the brake ring (201a) is provided with a plurality of convex flanges so as to be clamped firmly. The arc of the friction plate (209) arranged on the brake rod (208a) is a section of logarithmic spiral. The edge of the lug drive plate (227) is provided with a lug drive seat (224b) which is provided with a through hole and a square pit so as to install the lug component (224 a). The lug block component (224a) arranged on the lug block drive plate (227) comprises a bolt, a nut and a sliding sleeve. The lug block component (224a) arranged on the lug block drive plate (227) comprises a bolt, a nut, a sliding sleeve and a bearing. The reset seat (228) arranged on the lug drive plate (227) is in a protruding cross shape so as to firmly install the reset pressure spring (228 a). The brake rod (208a) is provided with a hollowed arc-shaped groove which is formed by an upper arc (224d), a groove edge (224), a lower arc (224c) and another groove edge (224) which are orthogonal, tangent or smooth at the connection position in sequence. The arc of the groove edge (224) of the hollowed arc-shaped groove arranged on the brake rod (208a) is a section of logarithmic spiral, so that the brake rod is not blocked when the pressure angles are equal at any position. The liquid fertilizer for fertilization is contained in the pipe of the pipe rolling device of the mower with irrigation, fertilization, pesticide spraying and anti-collision logarithmic spiral automatic braking, and the fertilizer is dissolved in water; or liquid pesticide or water for spraying is used instead, so that the multifunctional pesticide sprayer is easy to use and has multiple functions.

The invention has the advantages that: the anti-collision safety and braking effects are enhanced, the grass can be selectively cut, and the moving area is very large; a lithium storage battery is arranged on the lawn mower and is provided with a pipe rolling device which can freely move in and out; the reel has multiple damping, so that the worldwide problem that the reel is out of order sometimes is solved; the novel lawn mower has the advantages that the collision retraction triggering limiting anti-collision function is added, the balance weight is enhanced to be beneficial to pressing grass and preserving soil moisture, the slope is safe and does not topple at 16.7 ℃, the balance weight is saved at the front part of the whole mower, so that the lawn mower is tilted forwards and reaches the standard, a user is comfortable and convenient, an internal combustion engine is not used, the fuel is saved, the energy is saved, and the RoHS emission is facilitated; the anti-collision safety and the relaxation band brake can ensure the brake, are beneficial to anti-collision and solve the problem that the lawn mower is accidentally injured or overturned due to steel hard objects hidden in the lawn; the storage battery is added, and the reel which can move forward and backward freely and stop along with pulling is doubled to expand the mowing range; the invention relates to a relaxation band brake of a function wave disc brake, which is an innovation, the brake is also provided with an axial shaft disc of a friction block which gradually rises according to a function, a belt wheel with multiple internal teeth inside and a radial centrifugal throwing block with multiple arc teeth, and can be suitable for various machine types, and the invention changes the stuffy brake energy accumulation into the relaxation band brake, and the new brake concept of dispersing energy by intermittent pulsation is an innovation; the anti-collision safety is used for ensuring braking, can be cut and beaten, and can move forward and backward freely, which are easy to do and difficult to do; the rotating rod with the labyrinth is pulled by the central pull wire to lead the reel to pay off, thereby breaking the history that the nylon wire cutting device of the grass cutting head cannot be used for the mower, and the special-shaped multi-groove nylon wire is also beneficial to cutting grass to be sharp, saving energy and reducing noise; because the winding device with a plurality of damping mechanisms is adopted instead of a single damping mechanism, a plurality of complementation is more reliable, namely, the pipe coiling device is complemented by a centrifugal slow retraction device, a side piston damping device, a position lock, a ball position lock, a reverse damping mechanism and a pipe arranger angle groove type damping mechanism, thereby greatly increasing the mowing range; perhaps, the novel field of the mower with the functions of watering, fertilizing, pesticide spraying and anti-collision logarithmic spiral automatic braking is created; the invention also discloses a novel braking concept that the function wave disc changes the stuffy brake energy accumulation into the relaxation brake, and the intermittent pulse energy is dispersed, and the novel braking concept is used in various fields as an innovative braking method; the mower with the logarithmic spiral brake for automatic braking protection forms a substantial brake with a cam structure because the arc of the brake lever of the mower has the characteristic that one section of the logarithmic spiral has equal pressure angle, and the mower with the logarithmic spiral brake has the problem of being difficult to make a mowing knife stop suddenly and meets safety regulations due to the fact that the section of the logarithmic spiral has the equal pressure angle. The liquid fertilizer in the pipe of the pipe rolling device is the pesticide or fertilizer which is added with the soluble fertilizer in percentage and is easy to replace. The functions of irrigation, fertilization and pesticide spraying are added, the application range is wide, and the activity area is large; the liquid fertilizer for fertilization filled in the pipe of the pipe rolling device is prepared by adding soluble fertilizer into water according to the percentage. Or the liquid pesticide for spraying the pesticide is filled in the pipe of the pipe rolling device, and the soluble pesticide is added into the water according to the percentage. The operating walker pulls the self-walking control handle to make the clutch block move axially to be jointed through the steel wire rope and the deflector rod. The clutch block of the clutch device in the rear wheel drive gear reduction clutch of the self-propelled mechanism of the technology is not only jointed by the cone on the side surface of the clutch block, but also has a waveform on the end surface to assist the jointing. When the operating walker looses the self-walking control handle, the clutch block moves axially to leave through the elastic reset of the steel wire rope and the deflector rod. Because the end surface is smooth sine wave, the clutch block is easier to be separated than the jaw clutch block. A blowing and sucking machine (229) arranged on the mower, wherein a dust bag bracket (35) of the blowing and sucking machine (229) is connected with a dust bag (36), and the dust bag (36) is connected with a grass collecting box at the rear part of the mower through a pipeline; the blowing and sucking machine (229) is provided with a horn-shaped blowing and sucking port (230); a blowing and sucking fan blade (231) and a broom (232) are arranged on a mowing knife of a chassis of the mower for directly blowing and sucking. The blowing and sucking effect is obvious when the blowing and sucking fan blades of the blowing and sucking machine and the chassis and the broom are used, and the blowing and sucking fan blades and the broom are swept into a dust collection bag of a grass collection box at the rear part of the mower.

the invention relates to a tool for blowing and sucking leaves and mowing in flower beds, courtyards, parks, roads and other places, which comprises an improvement of a blowing and sucking machine, and comprises an auxiliary handle additionally arranged movably, a dust bag support and an improvement of a pricking opening, a dust outlet of a machine shell is additionally provided with a soft sheet, a blowing impeller is additionally provided with a cutting edge, a circuit is additionally provided with a safety switch and a double switch, a silencing and damping material and a honeycomb are additionally arranged in the blowing and sucking machine, a roller is changed into a steering manner, a single extending cylinder is changed into a multi-extending pipe or a flexible folding pipe, the coaxiality is improved, the dynamic balance is measured, and a laser sighting tool is arranged to reduce the volume, and the blowing and sucking opening is in a horn shape, so that the blowing and sucking can be more widely realized.

While the invention has been described with reference to specific preferred embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Many modifications of equivalent technology will be apparent to those skilled in the art, but the scope of the patent is still covered by the appended claims without departing from the spirit of the claims.

The following detailed description is provided for the embodiments of the present invention for solving the technical problems:

The improvement of low-vibration leaf blowing-sucking machine includes the improvement of installing movable auxiliary handle, dust-collecting bag support and tying, i.e. adding soft sheet to dust outlet of large upper shell, adding blade to blowing blade wheel, adding safety and double switch to circuit, adding silencing and damping material and honeycomb to blowing-sucking machine, changing roller into turning direction and changing single extending pipe into multiple extending pipes or flexible folding pipe. Because the improved low-vibration leaf blowing and sucking machine is composed of a self-tapping screw 1, a large upper shell 2, a power wire 3, a cable sheath 4, a switch trigger 5, a switch trigger spring 6, a terminal block 7, a cable pressing plate 8, a capacitor 9, a self-tapping screw 10, a main switch 11, a speed regulator 12, a rubber gasket 13, a motor 14, a fan blade gasket 15, a blowing impeller 16, a hexagon nut 17, a fan blade plug piece 18, a self-tapping screw 19, a rotating shaft cover 20, a spring 21, a retainer ring 22, a blowing and sucking conversion plate 23, a large bottom shell 24, a safety switch 25, a rotating shaft 26, a blowing and sucking conversion knob 27, a side button 28, a torsion spring 29, a torsion spring shaft 30, an extension tube 31, a shaft retainer ring 32, a wheel 33, a wheel shaft 34, a dust bag support 35, a dust bag 36, a hexagon head bolt 37, an auxiliary handle knob 38, a self-tapping screw 39, an auxiliary handle cover 40, an auxiliary handle bottom, a strap 43, a nylon ribbon 44, an elastic collision bead automatic positioner 45, or a multi-extension pipe 46, or a flexible folding pipe 47, and a blown multi-extension pipe 48; the self-tapping screws 1 are multiple and are used for fixing the upper big shell 2 and the bottom big shell 24; when the assembling method is used, a pneumatic screwdriver or an electric screwdriver with fixed torque is used for tapping the self-tapping screw, so that the torque is reasonable and uniform; the upper shell 2 and the bottom shell 24 are assembled from left to right and comprise a handle part, an auxiliary handle part, an extension pipe limiter part, a motor volute part, a blowing and sucking change door part, a dust outlet part and a plurality of external hanging parts; the power line 3, the cable sheath 4, the switch trigger 5, the switch trigger spring 6, the terminal block 7, the cable pressing plate 8, the capacitor 9, the self-tapping screw 10, the main switch 11 and the speed regulator 12 are sequentially arranged on the handle parts of the large upper shell 2 and the large lower shell 24 which are assembled from left to right; the rubber gasket 13, the motor 14, the fan blade gasket 15, the blower wheel 16, the hexagon nut 17 and the fan blade plug piece 18 are sequentially arranged on the motor volute parts of the large upper shell 2 and the large lower shell 24 which are assembled from left to right; the self-tapping screw 19, the rotating shaft cover 20, the spring 21, the retainer ring 22, the blowing and sucking switching plate 23, the big bottom shell 24, the safety switch 25, the rotating shaft 26 and the blowing and sucking switching knob 27 are sequentially arranged at the blowing and sucking switching door part of the big upper shell 2 and the big bottom shell 24 which are assembled at the left side and the right side; the side button 28, the torsion spring 29, the torsion spring shaft 30 and the extension tube 31 are sequentially arranged at the position of the extension tube limiter of the large upper shell 2 and the large lower shell 24 which are assembled from left to right; the telescopic pipe 31 comprises a cylinder and a square pipe and is interconnected at the front part, and a wheel mounting part is arranged at the lower front part; the wheel mounting part arranged at the front lower part of the extension tube 31 is sequentially provided with the shaft retainer ring 32, the wheel 33 and the wheel shaft 34; soft pieces 2a are arranged at the positions of dust outlets of the large upper shell 2 and the large lower shell 24 which are assembled from left to right; at least one, or more than one, for example three, of said soft pieces, as shown in fig. 4, 5 and 11; the soft sheet is usually arranged on the upper shell, and is different according to the type of the machine, or is arranged on both shells; the soft sheet is generally directly injected on the shell and is triangular, or inclined quadrilateral or trapezoidal; or the soft sheet is not directly injected on the shell, and is made of flexible materials such as fiber fabrics, so that sundries blown out of the soft sheet into the bag are not too violent, and the bag opening is not easy to fall off; two clamping grooves are arranged outside the dust outlet parts of the big upper shell (2) and the big lower shell (24) which are assembled from left to right, so that the dust bag bracket 35 and the dust bag 36 can be conveniently clamped and hung; the dust collection bag support 35 is provided with a hook 35a, a hook rib 35b, a hook side gap 35c, a large bag sleeving ring 35d and a small bag sleeving ring 35 e; the original hook ribs 35b are only 2, and the supporting force is poor, so that the hooks 35a are occasionally loosened; the existing hook ribs 35b are changed into 3 or more hook ribs, and the supporting force is high, so that the hook 35a is not easy to loosen; the dust collecting bag (36) is made of fiber fabrics and is provided with a zipper and two associated hanging buckles, so that the hanging buckles can be hung on the hooks at the external hanging part on the shell conveniently; the zipper is used for pulling the bag open to pour out the broken leaves; and because the improved method for binding the bag opening of the dust bag bracket is adopted: firstly, preparing a commercially available nylon cable tie 44 with a barb, placing the nylon cable tie 44 into the fiber fabric of the dust collection bag 36, then manufacturing a sewing thread 36 by using a sewing machine, then opening and drawing, placing the cable tie 44 at the edge wrapped by the sewing thread 36 of the prepared fiber fabric of the dust collection bag 36 between a large bag loop 35d and a small bag loop 35e of the dust collection bag bracket 35, stretching into a pliers from a large opening of the drawing, tensioning the nylon cable tie 44 with the barb, and cutting off a long belt to obtain the nylon cable tie, which is easy to manufacture and firm; the hexagonal head bolt 37, the square auxiliary handle knob 38, the self-tapping screw 39, the auxiliary handle cover 40, the auxiliary handle bottom 41 and the M6 nut 42 are sequentially arranged at the auxiliary handle parts of the left-right assembled big upper shell 2 and the big bottom shell 24 to form a movable auxiliary handle; the auxiliary handle cover 40 of the auxiliary handle is provided with an arc-shaped communicating handle 40a with reference to fig. 6, 7 and 10, so that the back of the hand can be protected conveniently, and a plurality of radial tooth ridges 40b at the end part are also arranged, thereby being beneficial to clamping. The auxiliary handle 2b of the original blow-suction machine shell of another style is fixed as shown in fig. 11, and is not as easy to grasp as the auxiliary handle cover 40.

The improved safety circuit with safety protection for the low-vibration leaf blowing and sucking machine is safer due to the adoption of the improved safety circuit with safety protection for the low-vibration leaf blowing and sucking machine, the improvement is shown in a circuit diagram shown in figure 25, and consists of a terminal block 7, a safety resistor RC, a double-pole switch K, an inductor L, a capacitor C, a series motor M with a winding and a speed regulator 12, the speed regulator 12 consists of a bidirectional thyristor TC and a bidirectional thyristor DC, a resistor R1, a resistor R2, a variable resistor R3, a capacitor C2 and a speed regulation switch K3, the invention is specially provided with the double-pole switch K and the safety resistor RC, a fuse is used, a thermal relay is used, or an overcurrent protector is used for safer, the safety in a power supply is provided, the safety fuse? is also needed because the power supply is supplied for a plurality of places, the safety fuse is often too large and is not just suitable for the leaf blowing and sucking machine, and the end point variable resistor R3 and the speed regulator K3 can be switched on when the potential of the bidirectional thyristor is changed to enable the speed regulation switch to be substantially closed.

The improvement of the low-vibration leaf blowing and sucking machine is adopted, particularly, materials matched in different modes are adopted, and the scheme of vibration reduction and noise elimination comprising the vibration reduction and noise elimination materials and the honeycomb structure is added inside and outside the blowing and sucking machine and at multiple positions of the blowing and sucking machine is a great contribution of the invention, so that the vibration reduction and noise elimination scheme can also be used for other types such as grass trimmers and dust collectors. Because the vibration is increased and decreased outside the motor, the damping and noise elimination materials are added at a plurality of positions of the blowing and sucking machine, and a honeycomb structure is arranged at a plurality of positions of the blowing and sucking air channel, the schematic diagram is shown as the damping and noise elimination position 43 in fig. 4; a plurality of vibration-damping and noise-eliminating honeycomb structures are arranged inside and outside the shell and inside and outside each telescopic pipe, are in a plurality of densely interconnected hexagons and comprise noise-eliminating wedge structures, and the density and the width-depth ratio of the honeycomb structures are related to the vibration parameters and the noise characteristics of the blowing and sucking machine and need to be tested for a plurality of times; damping and silencing materials are additionally arranged inside and outside the shell, inside and outside each telescopic pipe and outside the motor, or metal fibers or non-metal materials are used for filling or semi-filling; or using sound-absorbing material with medium temperature resistance, especially porous sound-absorbing material, or flexible material, and film material; the porous material can be of the fibrous type, of the foam type, of the granular type, also used alone or more or less mixed; fibers such as rock wool, or glass yarn, or glass wool, especially ultra-fine glass wool; or using foam to prevent fire at the place where the temperature is raised, such as the position of the motor; or filling or attaching with particles such as expanded perlite, porous pottery clay brick, and temperature-resistant fabric, felt; the honeycomb structure can also be prefabricated and then attached or mixed and molded. Because the sound absorption coefficients (standing wave tube method sound absorption coefficients and reverberation method sound absorption coefficients) of all the materials are different, the incident angle also has influence on the sound absorption coefficients, some have better high-frequency sound absorption, some have better low-frequency sound absorption, and various materials have complementary efficiency, and vibration waves and noise are reflected, converted, absorbed and attenuated, so that the performance index is further improved.

The original blowing and sucking machine product is only provided with a strap 43 which is hung on the shell and carried on the shoulder of an operator; the invention proposes that the improved low-vibration leaf blowing and sucking machine is additionally provided with a mask, gloves, protective glasses and a safety in accessories; the blowing and sucking machine is arranged on the four-wheeled mower, namely wheels and a cart, so that the product grade is improved, the user is facilitated, and the blowing and sucking direction of the blowing and sucking machine can be finely adjusted and driven by the straps 43 remotely.

Because of the improvement of the low-vibration leaf blowing and sucking machine, the improvement comprises a blowing impeller and a cutting edge, namely the blowing impeller is additionally provided with the cutting edge as shown in figure 8, the enlarged cutting edge is shown in figure 18 and comprises a top cutting edge 16a and a side peripheral cutting edge 16b, and the included angle between the top surface of the blowing impeller blade of the top cutting edge 16a and the front surface of the blowing impeller blade is an acute angle; the included angle between the side peripheral surface of the blade of the impeller and the front surface of the blade of the impeller is also an acute angle, and the side peripheral edge 16b of the blade of the impeller is also an acute angle; the cutting edge additionally arranged on the blowing impeller is locally shorter along the edge of the front surface of the blade or is mostly longer along the edge; the cutting edge is a straight edge or an arc-shaped edge or a multi-fold edge, and the arc-shaped edge is an Archimedes line or a parabola line. As an improvement, the blowing impeller can also or additionally be provided with a blade steel knife, such as a strip-shaped knife; as an improvement, the blowing impeller blade can also be provided with a plurality of oval and hexagonal noise reduction holes which are beneficial to fragment and blowing suction.

Because the roller contacting the ground is changed into the steerable roller, the blowing and sucking machine is easy to steer, not only another design and variety of the blowing and sucking machine is increased, but also the requirements that some operation pedestrians like and are used to the blowing and sucking machine, especially in corner places, look ahead from left to right and rotate an angle to blow and suck so as to facilitate work are met. As the axle bracket below the head of the original extension tube 31 is disassembled to form an independent part axle bracket 31a, a hole is arranged at the place for placing the axle bracket below the head of the original extension tube 31 to insert the vertical axle of the annular clamping groove on the axle bracket 31a, as shown in the exploded diagram of fig. 23; otherwise, it is still convenient to pass the wheel shaft 34 through the wheel shaft bracket 31a, and then install a pair of wheels 33, each equipped with a retaining ring 32 for the shaft.

Because the improvement is adopted, namely as shown in fig. 20 and 22, a single extending cylinder is changed into a multi-extending pipe 46, and an automatic positioner, such as an elastic collision ball automatic positioner 45, or an automatic positioner of a collision block, or an automatic positioner of a torsion spring, is arranged, and people do not need to press a key by hands, the volume is reduced, the single extending cylinder can be freely drawn and contracted to the position, the automatic positioning is realized, the work efficiency is improved, and the transportation cost is reduced. The multiple extension tubes 46 associated with the automatic positioner are multiple segments, such as 4 segments; the multiple projecting pipes 46 are provided with grooves adapted to the locators. The principle of the telescopic antenna capable of being freely pulled in and pulled out is considered, the telescopic antenna is improved and used for a blowing and sucking machine as a multi-extension pipe 46, as shown in fig. 24, a small suction pipe is not called a multi-extension pipe 48; the multiple extension tubes 46 and 48 are each characterized by an inward flange at one end and an outward flange at the other end; the fish is connected with one section by one section, which is a plurality of sections, and at least 4 sections, so the fish can be pulled out or returned freely, and convex-concave clamping positions are arranged at the flanging positions of the fish. The length of the pipe of the blowing and sucking machine is determined according to the standard such as IEC60335-2-100 or the standard such as BSEN 15503: 2009, are all only 0.9 m, so the tie rod length is practical. Not only the principle of the accordion which can be freely pulled in and out and the common foldable hose of the dust collector and the washing machine are associated, but also the hose is improved and used as a multi-extending pipe of the blowing and suction machine, as shown in figure 21, the pipe is not called as a flexible folding pipe 47; for convenient positioning, or in combination with multiple extension tubes (48); the flexible folding tube 47 is characterized in that: it has multiple folds, whether the cross section is square or round or other shapes, the adjacent circumferences of the tubes are arranged alternately from large circle to small circle, that is, the fish is connected with a thick section and a thin section, the sections are multiple, and at least 4 sections or more; alternatively, the tube of the flexible folding tube 47 is made of flexible material such as fabric, cloth, plastic film, and a plurality of rings are provided at intervals along the flexible tube, or a coil spring is sleeved along the flexible tube as an interval ring for supporting, pulling in and pulling out; the coil spring is sparse and flexible, and can be retracted significantly.

And because the invention is adopted to provide a further important improvement of the low-vibration leaf blowing and sucking machine, namely a method containing laser for improving the manufacturing and assembling precision, the invention is an improvement method of not only a precision molding part but also a laser sighting tool for improving the coaxiality and the dynamic balance of a motor and a blowing impeller, thereby improving the product quality. Because the vibration and noise of the blowing and sucking machine are caused by the precision and form and position tolerance of power and tools, the coaxiality of a motor and a blowing impeller is required to be improved, and dynamic balance is required to be measured so as to have certain curative effect on the long-standing problem of low vibration and low noise of the blowing and sucking machine; firstly, the requirements on form and position tolerance, such as the coaxiality and the form and position tolerance of a motor and a blowing impeller assembly, are improved from the design of a drawing, the interference magnitude of the motor and the blowing impeller is also increased, and then the motor and the blowing impeller are pressed by a force application tool clamp; then, preparing a precise mould by using a numerical control CNC machining center, and carrying out post-treatment on a plastic part such as a blowing impeller, wherein the main method is a high-temperature steam method, preferably steaming for more than three hours, so that the size of the plastic part is not easy to deform; secondly, in order to improve the coaxiality of the motor and the blowing impeller, during assembly, a special laser-calibrated tooling press for calibrating the coaxiality of the motor and the blowing impeller assembly is adopted, after pressing, the assembly line is produced after batch sampling dynamic balance correction, and finally the whole machine also samples dynamic balance, so that a plurality of shock-absorbing and noise-eliminating materials are supplemented, and the improved, shock-absorbing, safe and good-use high-grade low-vibration leaf blowing and sucking machine is comprehensively formed.

The mower with the chassis blade broom is a multifunctional mower comprising a logarithmic spiral brake with anti-collision safety and a pipe winder with liquid pipelines for irrigating, fertilizing and spraying pesticide; four assemblies are additionally arranged on a common lawn mower, namely a bracket assembly of a storage battery provided with a charger and an inverter, a cutting device assembly dragged by a series motor, a pipe winder assembly for irrigating, fertilizing and spraying pesticide, a brake assembly and a cutting device assembly are arranged; the functions of irrigation, fertilization and pesticide spraying are added, the application range is wide, and the activity area is large; the liquid fertilizer for fertilization filled in the pipe of the pipe rolling device is fertilizer or pesticide which is added into water and can be dissolved according to the percentage. The dust bag bracket 35 of the blowing and sucking machine arranged on the mower is connected with a dust bag 36 and is connected with a grass collecting box at the rear part of the mower through a pipeline. A blowing and sucking fan blade 231 and a broom 232 are arranged on a mowing knife on a chassis of the mower for directly blowing and sucking.

An improved intelligent mower with automatic charging pin inserting and extracting contact piece component is characterized in that a pin ball (233a) arranged at the root of a charging pin ((233)) is embedded into a thick rubber pad so as to be capable of jogging and resisting impact.

Has the advantages that: the improved intelligent mower with the automatic charging pin inserted and pulled out of the contact piece assembly can automatically plug and pull for charging; the intelligent lawn mower is characterized in that a pin ball (233a) arranged at the root of the charging pin ((233) is provided with a cross pin on a spherical seat, so that the problem of micro-follow-up reliable plug-pull charging is solved, just like an automobile needs a gas station, an electric lawn mower also needs a charging station, the market needs an intelligent lawn mower with an automatic charging pin plug-pull, the problem that batteries are not durable and need frequent manual charging is solved, the curve sections of each guide rail of guide rails (233c) which are symmetrical along a central axis and are horizontally laid on the left side and the right side of a bottom plate of the ground surface are cubic curves so as to slow down impact, one section of the curve of a contact surface ((234b) of the contact piece (234) is a logarithmic spiral, and the logarithmic spiral, namely the equiangular spiral has the characteristic that the pressure angle is equal at each position, so that the contact piece (234) and a pressing sheet torsion spring (234a) and a rotating shaft are four in total, the contact surface (234b) of each contact piece (234) which is arranged opposite to each other and forms a face-to-face split double door, the left side and the right side of the movable door of the double door are respectively provided with a contact surface (234b) corresponding to the insertion surface (233b) arranged on the head of the charging pin (233) which is arranged on the front wall which is arranged on the front side and is symmetrical along the central axis, so that the charging pin is inserted, the mower is started to retreat to cut grass when the charging pin is charged to a set value, and the mower moves to the bottom plate when the charging is carried out again, so that the guide rail is advanced by using a cubic curve and a logarithmic spiral on the contact surface.

The intelligent mower with the front universal wheel and the half-edge guide groove which are matched to enlarge the mowing area is developed on the basis of the improved intelligent mower with the contact piece assembly capable of automatically inserting and pulling the charging pin, and the improved intelligent mower with the contact piece assembly capable of automatically inserting and pulling the charging pin is provided; the contact piece assembly with the automatic charging pin insertion and extraction function comprises a fixed power supply component with the automatic charging pin insertion component and a movable power receiving component with the extraction contact piece of the mower body; the fixed power supply component with the automatic charging pin insertion component is provided with a bottom plate horizontally paved on the ground surface, a front wall standing in front, a power supply source and anchor screws, and one side of the bottom plate horizontally paved on the ground surface is provided with guide rails (233c) which are symmetrical along the advancing line of the single-side front universal wheel so as to guide the left and right of the advancing line of the single-side front universal wheel on the front part of the mower body; the curve section of each guide rail of the guide rails (233c) which are arranged on the left side and the right side of the bottom plate horizontally paved on the ground surface and are symmetrical along the central axis is a cubic curve so as to reduce the impact; the four feet of the bottom plate horizontally paved on the ground surface are provided with the foundation screws so as to be fixed; the front part of the bottom plate horizontally paved on the ground surface is provided with the front wall standing in front; the front wall standing in front is provided with the charging pins ((233) which are respectively arranged at the left side and the right side and are symmetrical along a central axis, the root parts of the charging pins ((233) are provided with pin balls (233a) so as to follow a trace amount, the root parts of the charging pins ((233)) are provided with threads so as to be connected with the power supply source, the head parts of the charging pins ((233) are provided with inserting surfaces (233b) so that the charging pins can be inserted into and pulled out of contact sheets, the bottom plate which is horizontally paved on the ground surface is paved and pulled out along the central axis and is paved with a guide wire of electromagnetic pulse in a working area along the ground surface so as to pass through a sensor (234d) below the front part of the mower and a circuit board to intelligently guide the fixed power supply component with the automatic charging pin inserting component to walk to the bottom plate which is horizontally paved on the ground surface when the mower is charged, and the movable power receiving component with the pulled-out contact sheets is arranged at, the movable current receiving component with the pull-out contact piece comprises a sensor (234d) below the front part of the mower, a contact piece (234) arranged at the front part of the mower, a pressing piece torsion spring (234a) and a rotating shaft; the contact pieces (234), the pressing piece torsion springs (234a) and the rotating shafts are four in number, each contact piece (234), the pressing piece torsion spring (234a) and the rotating shaft form a movable door, one movable door formed by each contact piece (234), the pressing piece torsion spring (234a) and the rotating shaft and the other movable door formed by each contact piece (234), the pressing piece torsion spring (234a) and the rotating shaft form a pair of oppositely-opened double doors, the contact surface ((234b) of each contact piece (234) facing each other of the movable doors with the double doors on the left side and the right side correspond to the insertion surface (233b) arranged on the head of the charging pin ((233) symmetrically arranged along the central axis and arranged on the front wall standing ahead, the charging pin is inserted along with the micro pin ball (233a) by the micro pin, and the grass cutter is started to retreat when the charging is up to a set value, the charging pin is pulled out of the contact piece, and then the charging pin works; when the lawn mower needs to be charged again, the lawn mower walks to the bottom plate horizontally paved on the ground surface and inserted by the charging pin, wherein the power supply part is fixed with the automatic charging pin insertion part; the curve section of each guide rail of the guide rails (233c) which are respectively arranged on the left side and the right side of the bottom plate horizontally paved on the ground and are symmetrical along the central axis is a cubic curve so as to be matched with an auxiliary guide rod (234e) on the front side of the mower to reduce the impact; the foot margin screws arranged on the four feet of the bottom plate horizontally paved on the ground surface are expansion screws; the intelligent mower with the front universal wheel and the half-side guide groove for expanding the mowing area is characterized in that the pin ball (233a) arranged at the root of the charging pin (233) is arranged on the concave half-ball seat, the left pin and the right pin of the pin ball are respectively positioned in the U-shaped groove of the left side and the right side, so as to facilitate micro-motion follow-up and impact resistance; the intelligent mower with the mowing area enlarged by matching the front universal wheel and the half-side guide groove comprises a fixed power supply component with an automatic charging pin insertion component, wherein one side of a bottom plate horizontally paved on the ground surface is provided with narrow guide rails (233c) which are symmetrical along the advancing line of the single-side front universal wheel, a middle groove of each narrow guide rail (233c) can only accommodate the front universal wheel of the single-side front wheel of the mower, the left-right width of each narrow guide rail (233c) is smaller than half of the width of the mower, each guide rail of each narrow guide rail (233c) is in a horn shape containing a cubic curve section of a high-class mathematical function curve, so that the impact is relieved, the front universal wheel is matched with the half-side guide groove to guide the front part of the mower along the left-right side of the advancing line of the single-side front universal wheel, the mowing area is enlarged, and the left-side half of the left-side cutting area or the left-side half of the cutting area or the left-side cutting area is avoided The left half is the injured guide track area.

The bright spots are:

Claims

1. The intelligent mower with the front universal wheel and the half-edge guide groove which are matched to enlarge the mowing area comprises an improved contact piece assembly with an automatic charging pin inserted and pulled out; the contact piece assembly with the automatic charging pin insertion and extraction function comprises a fixed power supply component with the automatic charging pin insertion component and a movable power receiving component with the extraction contact piece of the mower body; the fixed power supply component with the automatic charging pin insertion component is provided with a bottom plate horizontally paved on the ground surface, a front wall standing in front, a power supply source and anchor screws, and one side of the bottom plate horizontally paved on the ground surface is provided with guide rails (233c) which are symmetrical along the advancing line of the single-side front universal wheel so as to guide the left and right of the advancing line of the single-side front universal wheel on the front part of the mower body; the curve section of each guide rail of the guide rails (233c) which are arranged on the left side and the right side of the bottom plate horizontally paved on the ground surface and are symmetrical along the central axis is a cubic curve so as to reduce the impact; the four feet of the bottom plate horizontally paved on the ground surface are provided with the foundation screws so as to be fixed; the front part of the bottom plate horizontally paved on the ground surface is provided with the front wall standing in front; the front wall standing in front is provided with the charging pins (233) which are respectively arranged at the left side and the right side and are symmetrical along the central axis, the root parts of the charging pins (233) are provided with pin balls (233a) so as to be slightly follow-up, and the root parts of the charging pins (233) are provided with threads so as to be connected with the power supply; the head of the charging pin (233) is provided with an inserting surface (233b) so that the charging pin can be inserted into and pulled out of the contact sheet conveniently; the bottom plate horizontally paved on the ground surface is paved and led out along the central axis, and a guide line lead of electromagnetic pulse is paved on the working area along the ground surface, so that the mower is intelligently guided to walk to the bottom plate with the fixed power supply component of the automatic charging pin insertion component when the mower is charged through a sensor (234d) below the front part of the mower and a circuit board, and the bottom plate is horizontally paved on the ground surface; the movable power receiving component with the pull-out contact piece of the mower body is arranged at the front part of the mower, and comprises a sensor (234d) below the front part of the mower, a contact piece (234) arranged at the front part of the mower, a pressing sheet torsion spring (234a) and a rotating shaft; the contact piece (234), the pressing piece torsion spring (234a) and the rotating shaft are respectively provided with four, each contact piece (234), the pressing piece torsion spring (234a) and the rotating shaft form a movable door, the contact piece (234) and the pressing piece torsion spring (234a) and the rotating shaft form a face-to-face split double door with the contact piece (234), the pressing piece torsion spring (234a) and the rotating shaft, the contact surface (234b) of each contact piece (234) which is arranged on the left side and the right side of the face-to-face double door of the double door is corresponding to the insertion surface (233b) which is arranged on the head of the charging pin (233) which is arranged on the front wall which is arranged on the front side and is symmetrical along the central axis, and the charging pin is slightly inserted along with the pin ball (233 a); when the charging pin is charged to a set value, the mower is started to retreat, so that the charging pin is pulled out of the contact piece to work; when the lawn mower needs to be charged again, the lawn mower walks to the bottom plate horizontally paved on the ground surface and inserted by the charging pin, wherein the power supply part is fixed with the automatic charging pin insertion part; the curve section of each guide rail of the guide rails (233c) which are respectively arranged on the left side and the right side of the bottom plate horizontally paved on the ground and are symmetrical along the central axis is a cubic curve so as to be matched with an auxiliary guide rod (234e) on the front side of the mower to reduce the impact; the foot margin screws arranged on the four feet of the bottom plate horizontally paved on the ground surface are expansion screws; the root of the charging pin (233) is provided with a pin ball (233a), and a cross pin is arranged on the spherical seat so as to facilitate micro follow-up; two nuts are arranged on the threads arranged at the root part of the charging pin (233) to prevent loosening; the head of the charging pin (233) is provided with an insertion surface (233b) which is wedge-shaped; the pressing plate torsion springs (234a) are provided with two tight-coil torsion springs; a section of curve of the contact surface (234b) of the contact piece (234) is a logarithmic spiral, and the logarithmic spiral, namely an equiangular spiral has the characteristic that the pressure angle is equal everywhere, so that the contact insertion is facilitated; the intelligent mower with the front universal wheel and the half-edge guide groove which are matched to enlarge the mowing area is characterized in that a pin ball (233a) arranged at the root of the charging pin (233) is arranged on the concave half-ball seat, and the coaxial pins of the left pin ball and the right pin ball are respectively positioned in the U-shaped grooves of the left pin ball and the right pin ball so as to facilitate micro-motion follow-up and impact resistance; the intelligent mower with the mowing area enlarged by matching the front universal wheel and the half-side guide groove comprises a fixed power supply component with an automatic charging pin insertion component, wherein one side of a bottom plate horizontally paved on the ground surface is provided with narrow guide rails (233c) which are symmetrical along the advancing line of the single-side front universal wheel, a middle groove of each narrow guide rail (233c) can only accommodate the front universal wheel of the single-side front wheel of the mower, the left-right width of each narrow guide rail (233c) is smaller than half of the width of the mower, each guide rail of each narrow guide rail (233c) is in a horn shape containing a cubic curve section of a high-class mathematical function curve, so that the impact is relieved, the front universal wheel is matched with the half-side guide groove to guide the front part of the mower along the left-right side of the advancing line of the single-side front universal wheel, the mowing area is enlarged, and the left-side half of the left-side cutting area or the left-side half of the cutting area or the left-side cutting area is avoided The left half is the injured guide track area.