CN215602068U

CN215602068U - High branch scissors

Info

Publication number: CN215602068U
Application number: CN202120160846.7U
Authority: CN
Inventors: 丁犇; 李颖; 许继源; 柳淦元
Original assignee: Foshan Polytechnic
Current assignee: Foshan Polytechnic
Priority date: 2021-01-20
Filing date: 2021-01-20
Publication date: 2022-01-25
Anticipated expiration: 2031-01-20

Abstract

The utility model discloses a pair of tree pruners, which comprises an insulating rod, a driving mechanism, a cutting mechanism, an electromagnetic detection mechanism and a braking mechanism, wherein the driving mechanism is arranged at the top of the insulating rod; the braking mechanism is used for braking the cutting mechanism, and the electromagnetic detection mechanism is used for detecting the electrified cable; the braking mechanism is used for braking the cutting mechanism, and the electromagnetic detection mechanism is used for detecting the electrified cable; detect electrified cable through electromagnetic detection mechanism, when near electromagnetic detection mechanism detects there is electrified cable, stop through actuating mechanism to cutting mechanism energy supply to in time start the arrestment mechanism and stop cutting mechanism, avoid cutting mechanism to cut off electrified cable by mistake and arouse the incident.

Description

High branch scissors

Technical Field

The utility model relates to the technical field of garden tools, in particular to a pair of tree pruners.

Background

Generally can plant more trees in order to maintain the afforestation around the high-tension electricity tower, and along with the growth of trees, the branch and leaf of trees probably can extend to the high-tension electricity tower, influence the normal operating of high-tension electricity tower, consequently, need regularly prune the trees around the high-tension electricity tower, and current averruncator has two kinds, one kind adopts mechanical structure, prune the branch and leaf through the manpower, and prune consuming time and wasting power through the manpower, work efficiency is low, it is great to receive manpower influence factor, and another kind adopts electronic structure, prune the branch and leaf through electronic saw, although pruning efficiency has obtained improving, but it has great potential safety hazard, the control degree of difficulty increase of electronic saw causes the damage near cable conductor easily, thereby also increased the danger of staff's electric shock.

It is seen that improvements and enhancements to the prior art are needed.

SUMMERY OF THE UTILITY MODEL

In view of the defects of the prior art, the utility model aims to provide a pair of high branch scissors which can automatically induce a live cable to complete braking and has high safety.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a high branch shear comprises an insulating rod, a driving mechanism, a cutting mechanism, an electromagnetic detection mechanism and a braking mechanism, wherein the driving mechanism is arranged at the top of the insulating rod, the cutting mechanism is arranged above the driving mechanism, one end of the cutting mechanism is in transmission connection with the driving mechanism, the electromagnetic detection mechanism is arranged in the free end of the cutting mechanism, the electromagnetic detection mechanism is electrically connected with the driving mechanism, and the braking mechanism is arranged between the driving mechanism and the cutting mechanism and is in transmission connection with the cutting mechanism; the braking mechanism is used for braking the cutting mechanism, and the electromagnetic detection mechanism is used for detecting a charged cable.

In the high branch shears, the high branch shears further comprise an angle adjusting mechanism, the angle adjusting mechanism is arranged at the top of the insulating rod, the driving mechanism is arranged in the angle adjusting mechanism, one end of the cutting mechanism is arranged in the angle adjusting mechanism and is in transmission connection with the driving mechanism, and the other end of the cutting mechanism extends out of the angle adjusting mechanism.

In the high branch shears, the angle adjusting mechanism comprises a rotating mechanism and a protective cover, the rotating mechanism is arranged at the top of the insulating rod, and the protective cover is rotationally connected with the rotating mechanism; the driving mechanism and the braking mechanism are respectively arranged in the protective cover.

In the high branch shears, the driving mechanism comprises a main control unit and a driving motor, the driving motor is in transmission connection with the cutting mechanism, and the main control unit is electrically connected with the driving motor, the rotating mechanism, the electromagnetic detection mechanism and the braking mechanism respectively.

In the high branch shears, the driving mechanism further comprises a worm and a worm wheel, the cutting mechanism comprises an electric saw guide rod and a chain saw, the worm is arranged on an output shaft of the driving motor, the worm wheel is arranged below the electric saw guide rod, the worm is meshed with the worm wheel, the chain saw surrounds the edge of the electric saw guide rod, and the chain saw is meshed with the worm wheel; the brake mechanism is in transmission connection with the worm gear; the electromagnetic detection mechanism is arranged in the electric saw guide rod.

In the high branch scissors, the electromagnetic detection mechanism comprises a mutual inductor, and the mutual inductor is electrically connected with the main control unit; the mutual inductor is used for inducing magnetic flux generated by current in the live cable.

In the high branch shears, the insulating rod comprises a plurality of rod sections, and any two of the rod sections are detachably connected.

In the high branch shears, the high branch shears further comprise a standby power supply, and the standby power supply is arranged at the bottom of the angle adjusting mechanism and is electrically connected with the driving mechanism.

In the high branch shears, the high branch shears further comprise a controller, and the controller is arranged at the bottom of the insulating rod and is electrically connected with the driving mechanism; the controller is used for controlling the driving mechanism and the angle adjusting mechanism to work.

In the high branch scissors, a Bluetooth unit is arranged in the main control unit and is used for communicating with external communication equipment.

Has the advantages that:

the utility model provides a pair of high branch scissors, wherein when the high branch scissors are used, a live cable is detected through an electromagnetic detection mechanism, when the electromagnetic detection mechanism detects that the nearby live cable exists, the driving mechanism stops supplying energy to a cutting mechanism, and a braking mechanism is started to brake the cutting mechanism in time, so that safety accidents caused by mistakenly cutting off the live cable by the cutting mechanism are avoided; in addition, the angle adjusting mechanism can adjust the cutting angle of the cutting mechanism to adapt to different working environments, so that the cutting mechanism can trim branches and leaves at different angles, and the working efficiency of users is improved.

Drawings

Fig. 1 is a schematic view of the overall structure of the high branch shears of the present invention;

FIG. 2 is a schematic view of the overall structure of the high branch shears of the present invention;

fig. 3 is an enlarged schematic view of the area a in fig. 2.

Description of the main element symbols: 1-insulating rod, 2-angle adjusting mechanism, 3-driving mechanism, 4-cutting mechanism, 5-electromagnetic detection mechanism, 6-braking mechanism, 7-standby power supply, 8-controller, 11-rod section, 21-rotating mechanism, 22-protective cover, 31-main control unit, 32-driving motor, 33-worm, 34-worm gear, 41-electric saw guide rod and 42-chain saw.

Detailed Description

The present invention provides a pair of tree pruners, which will be described in detail below with reference to the accompanying drawings and examples, in order to make the objects, technical solutions and effects of the present invention clearer and clearer. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

In the description of the present invention, it should be understood that the terms "middle", "inside", "outside", and the like indicate orientations or positional relationships based on the drawings, and are only for convenience of describing the present invention and for simplification of description. Furthermore, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

Referring to fig. 1 and 2, the present invention provides a pair of tree pruners, including an insulating rod 1, a driving mechanism 3, a cutting mechanism 4, an electromagnetic detection mechanism 5 and a braking mechanism 6, wherein the driving mechanism 3 is disposed on the top of the insulating rod 1, the cutting mechanism 4 is disposed above the driving mechanism 3, one end of the cutting mechanism 4 is in transmission connection with the driving mechanism 3, the electromagnetic detection mechanism 5 is disposed in the free end of the cutting mechanism 4, the electromagnetic detection mechanism 5 is electrically connected with the driving mechanism 3, and the braking mechanism 6 is disposed between the driving mechanism 3 and the cutting mechanism 4 and in transmission connection with the cutting mechanism 4; the braking mechanism 6 is used for braking the cutting mechanism 4, and the electromagnetic detection mechanism 5 is used for detecting a charged cable.

Referring to fig. 1 and 2, in practical use, the driving mechanism 3 drives the cutting mechanism 4 to rotate, the cutting mechanism 4 rotating at a high speed trims branches and leaves, when the cutting mechanism 4 approaches a live cable, the electromagnetic detection mechanism 5 induces a magnetic flux of current in the live cable and generates induced electromotive force, and when the driving mechanism 3 detects that the induced electromotive force of the electromagnetic detection mechanism 5 changes, the driving mechanism stops providing power for the cutting mechanism 4, and starts the braking mechanism 6 to brake the cutting mechanism 4 in time, so as to prevent the cutting mechanism 4 from damaging the live cable and prevent a user from getting an electric shock; in addition, the safety of the high-branch shears is further improved through the insulating rod 1, and the problem that users get electric shock is avoided.

As shown in fig. 1 and 2, the secateurs further comprises an angle adjusting mechanism 2, the angle adjusting mechanism 2 is arranged at the top of the insulating rod 1, the driving mechanism 3 is arranged in the angle adjusting mechanism 2, one end of the cutting mechanism 4 is arranged in the angle adjusting mechanism 2 and is in transmission connection with the driving mechanism 3, and the other end of the cutting mechanism 4 extends out of the angle adjusting mechanism 2; the angle adjusting mechanism 2 can adjust the cutting angle of the cutting mechanism 4 to adapt to different working environments, so that the cutting mechanism 4 can trim branches and leaves at different angles, and the working efficiency of users is improved.

As shown in fig. 2, further, the angle adjusting mechanism 2 includes a rotating mechanism 21 and a protective cover 22, the rotating mechanism 21 is disposed on the top of the insulating rod 1, and the protective cover 22 is rotatably connected to the rotating mechanism 21; the driving mechanism 3 and the braking mechanism 6 are respectively arranged in the protective cover 22; a motor for rotating the protective cover 22 is arranged in the angle adjusting mechanism 2; in the present embodiment, the range of the rotation angle of the rotation mechanism 21 is-120 ° to 120 °, so that the cutting mechanism 4 can be applied to different scenes through a large range of rotation angles, and can trim branches and leaves at different angles; dust and debris is prevented from entering the drive mechanism 3 and the brake mechanism 6 by the shield 22.

As shown in fig. 2 and fig. 3, further, the driving mechanism 3 includes a main control unit 31 and a driving motor 32, the driving motor 32 is in transmission connection with the cutting mechanism 4, and the main control unit 31 is electrically connected with the driving motor 32, the rotating mechanism 21, the electromagnetic detection mechanism 5 and the braking mechanism 6 respectively; in one embodiment, the driving motor 32 may be a brushless motor, which is small and light, making the high branch shears as a whole more lightweight.

As shown in fig. 3, further, the driving mechanism 3 further includes a worm 33 and a worm wheel 34, the cutting mechanism 4 includes an electric saw guide 41 and a chain saw 42, the worm 33 is disposed on an output shaft of the driving motor 32, the worm wheel 34 is disposed below the electric saw guide 41, the worm 33 is engaged with the worm wheel 34, the chain saw 42 is enclosed at an edge of the electric saw guide 41, and the chain saw 42 is engaged with the worm wheel 34; the brake mechanism 6 is in transmission connection with the worm wheel 34; the electromagnetic detection mechanism 5 is arranged in the electric saw guide rod 41; in use, the drive motor 32 drives the worm wheel 34 via the worm 33, the worm wheel 34 drives the chain saw 42 to rotate, when the cutting mechanism 4 needs to brake, the brake mechanism 6 is activated to brake the worm wheel 34 which is still rotating due to inertia, thereby preventing the chain saw 42 from further rotating; in this embodiment, the braking mechanism 6 includes a brake caliper and a brake disc, the brake disc is fixedly connected to the worm wheel 34, when the driving motor 32 stops, the brake caliper immediately clamps the brake disc, so that the chain saw 42 stops in a short time, and the chain saw 42 is prevented from accidentally injuring a worker or surrounding building facilities due to the fact that the chain saw 42 continues to operate due to inertia after the high branch shears stop operating.

Further, the electric saw guide rod 41 is an insulating guide rod; in one embodiment, the insulated guide rod may be a glass fiber reinforced plastic guide rod, which has the characteristics of light weight, high strength, non-conductivity, corrosion resistance, and the like.

As shown in fig. 1 and 2, further, the electromagnetic detection mechanism 5 includes a mutual inductor, and the mutual inductor is electrically connected to the main control unit 31; the mutual inductance coil is used for inducing magnetic flux generated by current in the live cable; when the mutual inductor is close to a charged cable too close to use, a part of magnetic flux generated by current in the cable is linked with the mutual inductor in a loop mode, so that the magnetic flux in the mutual inductor changes, induced electromotive force is generated, when the main control unit 31 detects the change of the induced electromotive force, the main control unit 31 disconnects power supply to the driving motor 32, and meanwhile, the braking mechanism 6 is started to brake the chain saw 42, so that the situation that the area is powered off due to mistaken cable cutting or the cable falls off to cause severe safety accidents is prevented.

As shown in fig. 2, further, the insulating rod 1 includes a plurality of rod segments 11, and any two of the rod segments 11 are detachably connected; in this embodiment, any two rod segments 11 may be connected by a clamping groove; through the arrangement, the length of the insulating rod 1 is adjustable, splicing can be carried out according to the height of trees, and the insulating rod 1 is more flexible to use.

As shown in fig. 1 and 2, further, the secateurs further includes a backup power supply 7, and the backup power supply 7 is disposed at the bottom of the angle adjusting mechanism 2 and electrically connected to the driving mechanism 3; in one embodiment, the backup power source 7 may be a high energy density lithium battery; the stand-by power supply 7 improves the cruising ability of the high branch shears and prolongs the service life.

As shown in fig. 1 and 2, further, the secateurs further comprise a controller 8, wherein the controller 8 is arranged at the bottom of the insulating rod 1 and is electrically connected with the driving mechanism 3; the controller 8 is used for controlling the driving mechanism 3 and the angle adjusting mechanism 2 to work; the controller 8 is provided with a plurality of functional buttons; in this embodiment, the function buttons include a start button, a stop button, an up-spin button, and a down-spin button; the controller 8 enables the operator to quickly control the high branch shears to complete the actions of starting, closing and rotating, and the operability of the high branch shears is improved.

As shown in fig. 3, further, a bluetooth unit is disposed in the main control unit 31, and the bluetooth unit is used for communicating with an external communication device; when the worker needs to use the high branch scissors, the worker needs to communicate with the Bluetooth unit through the mobile device to verify personal information of the worker, and the main control unit 31 can be started only if the personal information is verified successfully; in addition, the Bluetooth unit also has a positioning function, and when the pole shears are lost, the position of the Bluetooth unit can be acquired through the background terminal, so that the Bluetooth unit can be conveniently retrieved by a worker.

In summary, when the cutting device is used, the electromagnetic detection mechanism 5 detects a live cable, and when the electromagnetic detection mechanism 5 detects that a nearby live cable exists, the driving mechanism 3 stops supplying energy to the cutting mechanism 4, and the braking mechanism 6 is started in time to brake the cutting mechanism 4, so that safety accidents caused by mistakenly cutting off the live cable by the cutting mechanism 4 are avoided; in addition, the angle adjusting mechanism 2 can adjust the cutting angle of the cutting mechanism 4 to adapt to different working environments, so that the cutting mechanism 4 can trim branches and leaves at different angles, and the working efficiency of users is improved.

It should be understood that the technical solutions and the inventive concepts according to the present invention may be equally replaced or changed by those skilled in the art, and all such changes or substitutions should fall within the protection scope of the appended claims.

Claims

1. A high branch shear is characterized by comprising an insulating rod, a driving mechanism, a cutting mechanism, an electromagnetic detection mechanism and a braking mechanism, wherein the driving mechanism is arranged at the top of the insulating rod, the cutting mechanism is arranged above the driving mechanism, one end of the cutting mechanism is in transmission connection with the driving mechanism, the electromagnetic detection mechanism is arranged in the free end of the cutting mechanism, the electromagnetic detection mechanism is electrically connected with the driving mechanism, and the braking mechanism is arranged between the driving mechanism and the cutting mechanism and is in transmission connection with the cutting mechanism; the braking mechanism is used for braking the cutting mechanism, and the electromagnetic detection mechanism is used for detecting a charged cable.

2. The secateurs as claimed in claim 1, wherein the secateurs further comprise an angle adjusting mechanism disposed on top of the insulating rod, the driving mechanism is disposed in the angle adjusting mechanism, one end of the cutting mechanism is disposed in the angle adjusting mechanism and is drivingly connected to the driving mechanism, and the other end of the cutting mechanism extends out of the angle adjusting mechanism.

3. The secateurs as claimed in claim 2, wherein the angle adjusting mechanism comprises a rotating mechanism and a protective cover, the rotating mechanism is arranged on the top of the insulating rod, and the protective cover is rotatably connected with the rotating mechanism; the driving mechanism and the braking mechanism are respectively arranged in the protective cover.

4. The secateurs as claimed in claim 3, wherein the driving mechanism comprises a main control unit and a driving motor, the driving motor is in transmission connection with the cutting mechanism, and the main control unit is electrically connected with the driving motor, the rotating mechanism, the electromagnetic detecting mechanism and the braking mechanism respectively.

5. The secateur of claim 4, wherein the driving mechanism further comprises a worm and a worm wheel, the cutting mechanism comprises an electric saw guide and a chain saw, the worm is disposed on an output shaft of the driving motor, the worm wheel is disposed below the electric saw guide, the worm is engaged with the worm wheel, the chain saw is enclosed at an edge of the electric saw guide, and the chain saw is engaged with the worm wheel; the brake mechanism is in transmission connection with the worm gear; the electromagnetic detection mechanism is arranged in the electric saw guide rod.

6. The secateur of claim 4, wherein the electromagnetic detection mechanism comprises a mutual inductor, and the mutual inductor is electrically connected with the main control unit; the mutual inductor is used for inducing magnetic flux generated by current in the live cable.

7. The secateur of claim 1, wherein the insulating rod comprises a plurality of rod segments, and any two of the rod segments are detachably connected to each other.

8. The secateurs as claimed in claim 2, wherein the secateurs further comprise a backup power source, the backup power source is disposed at the bottom of the angle adjusting mechanism and electrically connected to the driving mechanism.

9. The secateurs as claimed in claim 2, further comprising a controller disposed at the bottom of the insulating rod and electrically connected to the driving mechanism; the controller is used for controlling the driving mechanism and the angle adjusting mechanism to work.

10. The secateurs as claimed in claim 4, wherein a Bluetooth unit is provided in the main control unit, and the Bluetooth unit is used for communicating with an external communication device.