CN215421803U

CN215421803U - Height adjusting mechanism of edge trimming machine

Info

Publication number: CN215421803U
Application number: CN202023186254.7U
Authority: CN
Inventors: 张勇; 胡君慧; 李传代; 张星宇
Original assignee: Zhejiang YAT Electrical Appliance Co Ltd
Current assignee: Zhejiang YAT Electrical Appliance Co Ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2022-01-07
Anticipated expiration: 2030-12-25

Abstract

The utility model discloses a height adjusting mechanism of an edge trimmer, which comprises a main machine body, a handrail, an engine, an edge trimming mechanism, a gear adjusting mechanism, a fixed wheel set and an adjusting wheel set adjusting component, wherein the fixed wheel set and the adjusting wheel set are respectively arranged at two opposite sides of the main machine body; gear adjustment mechanism sets up on the handrail and is connected with the regulation wheelset, it includes front wheel alignment jig, rear wheel alignment jig and adjusts the wheel body to adjust the wheelset, be provided with adjusting part between front wheel alignment jig and the rear wheel alignment jig, adjusting part includes matched with driving gear and driven gear, the driving gear sets up between rear wheel alignment jig and main fuselage, the rear wheel alignment jig drives the driving gear and rotates, driven gear sets up between front wheel alignment jig and main fuselage, driven gear drives the front wheel alignment jig and rotates. The height adjusting device is simple in structure and convenient to operate, and realizes height adjustment so as to adapt to the operation of the edge trimmer on terrains with steps.

Description

Height adjusting mechanism of edge trimming machine

Technical Field

The utility model belongs to the technical field of garden tools, and particularly relates to a height adjusting mechanism of an edge trimmer.

Background

At present, an edge trimmer is a trimming machine for lawn edges, and during actual operation, an operator often touches lawns with edges having steps, which affects normal trimming of the edge trimmer and even can not trim the lawns, because the operation of the edge trimmer needs to ensure that the machine keeps a horizontal state, but if the edges have the steps, the edge trimmer works outside the steps, a blade only touches the steps, and the edge trimmer cannot keep horizontal work on the steps.

In patent No. CN204132040U, an edge trimmer is disclosed, comprising a body, a driving assembly, a trimming assembly and a switching assembly, wherein the switching assembly comprises a guide plate rotatably connected to the body and a support plate fixedly connected to the body, the driving assembly and the trimming assembly are in transmission connection, the trimming assembly comprises a blade rotatably driven by the driving assembly, the guide plate is rotatable relative to the support plate and is capable of being positioned at a first position at one side of the blade and a second position far away from the blade by being matched with the support plate. In the above edge trimmer, the guide plate can be matched with the support plate to be positioned at a first position at one side of the blade and a second position far away from the blade, so that the position of the guide plate can be adjusted to select an edge trimming mode and a non-edge trimming mode.

However, in the current adjusting structure, the operation steps of adjusting the height of two wheels are multiple, which is inconvenient, and meanwhile, the two wheels are independent in height adjusting structure, which results in multiple required parts and high cost.

SUMMERY OF THE UTILITY MODEL

The utility model provides the height-adjusting mechanism of the edge trimmer, which has simple structure and lower cost, and aims to overcome the defects in the prior art.

The technical scheme adopted by the utility model for solving the technical problems is as follows: a height adjusting mechanism of an edge trimmer comprises a main machine body, a handrail, a gear adjusting mechanism, a fixed wheel set and an adjusting wheel set, wherein the fixed wheel set and the adjusting wheel set are respectively arranged on two opposite sides of the main machine body; the handrail is connected with the main fuselage, gear adjustment mechanism sets up on the handrail and is connected with the regulation wheelset, it includes front wheel alignment jig, rear wheel alignment jig and adjusts the wheel body to adjust the wheelset, respectively be provided with at least one regulation wheel body on front wheel alignment jig and the rear wheel alignment jig, be provided with adjusting part between front wheel alignment jig and the rear wheel alignment jig, adjusting part includes matched with driving gear and driven gear, the driving gear sets up between rear wheel alignment jig and the main fuselage, the rear wheel alignment jig drives the driving gear and rotates, driven gear sets up between front wheel alignment jig and main fuselage, driven gear drives the front wheel alignment jig and rotates.

In one embodiment, the gear adjusting mechanism comprises an adjusting handle, a gear plate and a connecting rod, the gear plate is connected with the handrail, a plurality of insertion holes are formed in the gear plate, the adjusting handle can rotate around the gear plate and is inserted into the insertion holes to be fixed, one end of the connecting rod is connected with the adjusting handle, and the other end of the connecting rod is connected with the rear wheel adjusting frame.

In one embodiment, the adjusting handle is provided with an inserting column, and the inserting column is matched with the inserting hole.

In an embodiment, still include coupling assembling, coupling assembling includes driving gear axle, driven gear axle and lock nut, driving gear axle one end is inserted in the main fuselage, the driving gear axle other end passes the driving gear in proper order and is connected with back wheel alignment jig and lock nut, driven gear axle one end is inserted in the main fuselage, the driven gear axle other end passes driven gear in proper order and is connected with front wheel alignment jig and lock nut.

In one embodiment, a first fixing plate is disposed between the nut and the front and rear wheel adjusting brackets, and a second fixing plate is disposed between the driving gear shaft and the main body and between the driven gear shaft and the main body.

In one embodiment, washers are disposed between the driving gear and the second fixing plate and between the driven gear and the second fixing plate.

In one embodiment, the driven gear shaft is sleeved with an elastic element, the elastic element is arranged between the driven gear and the main body, one end of the elastic element is connected with the main body, and the other end of the elastic element is connected with the front wheel adjusting frame.

In one embodiment, the elastic member is a torsion spring.

In one embodiment, an engine and an edging mechanism are provided on the main body.

The height of the wheel body on one side is adjusted, transmission is realized through the gear structure, and the height of the two wheel bodies on the side is driven to change, so that the edge trimmer is suitable for working in a terraced terrain state, the operation is convenient and reliable, the steps are few, the integral structure is simple, and the cost is low.

Drawings

The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not to be considered limiting of the scope of the present disclosure.

FIG. 1 schematically illustrates the overall construction of an edger according to an embodiment of the present invention;

FIG. 2 schematically illustrates an explosive structure according to an embodiment of the utility model;

FIG. 3 schematically illustrates a cross-sectional structure at an adjustment assembly according to an embodiment of the utility model;

FIG. 4 schematically shows a motion diagram in a normal state according to an embodiment of the utility model;

fig. 5 schematically shows a movement diagram in a heightened state according to an embodiment of the utility model.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, embodiments of the present invention will be described in detail below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention.

Therefore, the detailed description of the embodiments of the present invention provided below in connection with the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention, and all other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive efforts shall fall within the scope of the present invention.

The terminology used herein is for the purpose of describing embodiments only and is not intended to be limiting and/or limiting of the utility model. It is to be understood that the terms "front", "back", "left", "right", and the like, refer to orientations or positional relationships based on those shown in the drawings, or orientations or positional relationships that are conventionally found when the products of the present invention are used, or orientations or positional relationships that are conventionally understood by those skilled in the art, and are used merely for convenience in describing and simplifying the present invention, and do not indicate or imply that the referenced devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be considered as limiting the present invention.

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to fig. 1 to 5.

FIG. 1 is a schematic overall configuration of the present heightening mechanism in combination with an edger.

FIG. 2 is a schematic diagram of a partially exploded structure of an embodiment of the present invention, which includes a main body, a gear adjusting mechanism, a fixed wheel set, and an adjusting assembly;

FIG. 3 is a sectional view schematically illustrating a connection state of the adjusting unit according to the embodiment of the present invention;

FIG. 4 is a schematic diagram of an embodiment of the present invention in a normal state;

FIG. 5 is a schematic diagram of an embodiment of the present invention in a raised state.

The trimmer height adjusting mechanism according to one embodiment of the present invention mainly includes a main body 100, an armrest 200, an engine 800, a trimming mechanism 900, a gear adjusting mechanism 300, a fixed wheel set 400, an adjusting wheel set 500, and an adjusting assembly 600, wherein the engine 800 is fixed on the main body 100, the trimming mechanism is located at one side of the fixed wheel set 400 for trimming lawn, the trimming power is provided by the engine 800, the armrest 200 is connected to the main body 100, correspondingly, the fixed wheel set 400 and the adjusting wheel set 500 are respectively disposed at two opposite sides of the main body 100, the fixed wheel set 400 includes two conventional wheel bodies rotatably connected to the main body, and the main body is used for carrying the above components.

Specifically, gear adjustment mechanism 300 sets up on handrail 200 and is connected with adjusting wheel group 500, and gear adjustment mechanism 300 includes adjustment handle 310, gear board 320 and connecting rod 330, gear board 320 is connected with handrail 200, be provided with a plurality of jacks 321 on the gear board 320, adjustment handle 310 can rotate around gear board 320 and insert jack 321 and fix, connecting rod 330 one end is connected with adjustment handle 310, it is connected with rear wheel alignment jig 520 to connect the other end, is provided with on the adjustment handle 310 and inserts post 311, it cooperatees with jack 321 to insert post 311. The gear adjusting mechanism 300 may be of any conventional structure in the art, and functions to adjust the angle of the connecting rod 330, thereby adjusting the adjusting wheel set. One end of the connecting rod is inserted into the gear plate and fixed by a cotter pin 1000 commonly used in the field, and correspondingly, the other end of the connecting rod is inserted into the rear wheel adjusting frame and fixed by the cotter pin 1000.

Specifically, adjust wheelset 500 and include front wheel alignment jig 510, rear wheel alignment jig 520 and adjust wheel body 530, respectively be provided with at least one regulation wheel body 530 on front wheel alignment jig 510 and rear wheel alignment jig 520, be provided with adjusting part 600 between front wheel alignment jig 510 and the rear wheel alignment jig 520, adjusting part 600 includes matched with driving gear 610 and driven gear 620, driving gear 610 sets up between rear wheel alignment jig 520 and main fuselage 100, rear wheel alignment jig 520 drives driving gear 610 and rotates, driven gear 620 sets up between front wheel alignment jig 510 and main fuselage 100, driven gear 620 drives front wheel alignment jig 510 and rotates.

Wherein, a group of plane double-rocker mechanisms is composed of the adjusting handle 310, the connecting rod 330 and the rear wheel adjusting bracket, wherein the gear plate 320 controls the rotating range of the adjusting handle 310, thereby controlling the rotating range of the rear wheel adjusting bracket, and one adjusting wheel body is fixed on the rear wheel adjusting bracket, so that the adjusting wheel body rotates along with the rear wheel adjusting bracket and generates height difference.

Specifically, this adjustment mechanism still includes coupling assembling, coupling assembling includes driving gear axle 611, driven gear axle 621 and lock nut 630, driving gear axle 611 one end is inserted in main fuselage 100, the driving gear axle 611 other end passes driving gear 610 in proper order and is connected with lock nut 630 with rear wheel alignment jig 520, driven gear axle 621 one end is inserted in main fuselage 100, the driven gear axle 621 other end passes driven gear 620 in proper order and is connected with lock nut 630 with front wheel alignment jig 510, and the driving gear can rotate around the driving gear axle, and driven gear can rotate around the driven gear axle.

The rear wheel adjusting frame and the front wheel adjusting frame are assembled together through a gear mechanism, so that the rotary motion of the rear wheel adjusting frame is converted into the rotary motion of the front wheel adjusting frame; the other adjusting wheel body is arranged on the front wheel adjusting frame, and the adjusting wheel body rotates along with the front wheel adjusting frame to generate a height difference.

Specifically, a first fixing plate 631 is disposed between the nut and the front wheel adjusting bracket 510 and the rear wheel adjusting bracket 520, a second fixing plate 632 is disposed between the driving gear shaft 611 and the main body 100 and between the driven gear shaft 621 and the main body 100, and washers 640 are disposed between the moving gear 610 and the second fixing plate 632 and between the driven gear 620 and the second fixing plate 632. The accuracy of the center distance of the driving gear and the driven gear and the stability of the strength of the driving gear and the driven gear are ensured by adding the first fixing plate and the second fixing plate, no play of the axial direction of the gears is ensured by adding the gasket 640 (wave gasket), and the smooth rotation is ensured.

Therefore, the rotating points of the front wheel adjusting frame and the rear wheel adjusting frame are the same as the rotating points of the corresponding driving gear and the corresponding driven gear, the front wheel adjusting frame and the rear wheel adjusting frame are connected with the driving gear and the driven gear through flat positions, so that the support and the gears synchronously rotate without relative movement, namely the front wheel adjusting frame and the rear wheel adjusting frame are respectively arranged on the corresponding flat positions of the driving gear and the driven gear, the rear wheel adjusting frame is ensured to drive the driving gear to rotate, the driven gear drives the front wheel adjusting frame to rotate, and then height change is generated.

Specifically, because the existence of backlash between driving gear and the driven gear for under the equipment state, the sense of rocking of preceding, rear wheel alignment jig is bigger, has influenced the operation and has experienced and the accuracy of improvement height, consequently, selects to overlap on driven gear shaft 621 and establishes elastic component 700, elastic component 700 sets up between driven gear 620 and second fixed plate 632, elastic component 700 one end is connected with main fuselage 100, another list of elastic component 700 is connected with front wheel alignment jig 510, and elastic component 700 adopts the torsional spring can, corresponding be provided with the through-hole on front wheel alignment jig and the main engine body promptly, and the both ends of elastic component insert respectively in two corresponding through-holes and buckle and lock, eliminate the clearance through the addition of elastic component (torsional spring).

Wherein, adjust the wheel body and be conventional wheel body structure, it with front wheel alignment jig, rear wheel alignment jig between adopt conventional pin, screw pin isotructure be connected can, through bolt locking, realize connecting, realize rotating the process simultaneously.

When the lawn mower is used, as shown in fig. 4-5, the heights of the fixed wheel set and the adjusting wheel set are consistent under a normal state, when the height needs to be adjusted, the adjusting handle is rotated to drive the angle of the connecting rod to be changed, then the rear wheel adjusting frame is driven to rotate, the driving gear is driven to rotate, the driven gear rotates, meanwhile, the front wheel adjusting frame is driven to rotate, height change is formed, the mower body and the fixed wheel set are lifted, and lawn mowing on the edge portion of the step surface can be carried out.

It should be noted that in the present invention, the connection modes not described between the components may all be connection modes commonly used in the field.

The scope of the present invention is defined not by the above-described embodiments but by the appended claims and equivalents thereof.

Claims

1. The utility model provides an edge trimmer height-adjusting mechanism, includes main fuselage and handrail, its characterized in that still includes: the gear adjusting mechanism comprises a gear adjusting mechanism, a fixed wheel set and an adjusting wheel set, wherein the fixed wheel set and the adjusting wheel set are respectively arranged on two opposite sides of the main body;

the handrail is connected with the main fuselage, gear adjustment mechanism sets up on the handrail and is connected with the regulation wheelset, it includes front wheel alignment jig, rear wheel alignment jig and adjusts the wheel body to adjust the wheelset, respectively be provided with at least one regulation wheel body on front wheel alignment jig and the rear wheel alignment jig, be provided with adjusting part between front wheel alignment jig and the rear wheel alignment jig, adjusting part includes matched with driving gear and driven gear, the driving gear sets up between rear wheel alignment jig and the main fuselage, the rear wheel alignment jig drives the driving gear and rotates, driven gear sets up between front wheel alignment jig and main fuselage, driven gear drives the front wheel alignment jig and rotates.

2. The trimmer height adjusting mechanism according to claim 1, wherein the gear adjusting mechanism comprises an adjusting handle, a gear plate and a connecting rod, the gear plate is connected with the armrest, the gear plate is provided with a plurality of insertion holes, the adjusting handle can rotate around the gear plate and is inserted into the insertion holes for fixing, one end of the connecting rod is connected with the adjusting handle, and the other end of the connecting rod is connected with the rear wheel adjusting frame.

3. The trimmer elevation mechanism of claim 2 wherein the adjustment handle is provided with a post that mates with the socket.

4. The height adjusting mechanism of an edge trimming machine according to claim 3, further comprising a connecting assembly, wherein the connecting assembly comprises a driving gear shaft, a driven gear shaft and a lock nut, one end of the driving gear shaft is inserted into the main body, the other end of the driving gear shaft sequentially penetrates through the driving gear and the rear wheel adjusting frame and is connected with the lock nut,

one end of the driven gear shaft is inserted into the main body, and the other end of the driven gear shaft sequentially penetrates through the driven gear, the front wheel adjusting frame and the locking nut to be connected.

5. The trimmer elevation mechanism of claim 4 wherein first stationary plates are disposed between the nuts and the front and rear wheel adjustment brackets and second stationary plates are disposed between the drive gear shaft and the main body and between the driven gear shaft and the main body.

6. The trimmer elevation mechanism of claim 5 wherein a washer is disposed between the drive gear and the second stationary plate and between the driven gear and the second stationary plate.

7. The trimmer elevation mechanism of claim 5 wherein the driven gear shaft is journaled with a resilient member, the resilient member being disposed between the driven gear and the main body, one end of the resilient member being connected to the main body and the other end of the resilient member being connected to the front wheel frame.

8. The trimmer elevation mechanism of claim 7 wherein the resilient member is a torsion spring.

9. The trimmer elevation mechanism of claim 1 wherein the main body includes a motor and an trimmer mechanism.