CN214430203U

CN214430203U - Garden tool

Info

Publication number: CN214430203U
Application number: CN202120177313.XU
Authority: CN
Inventors: 田兵
Original assignee: Globe Jiangsu Co Ltd
Current assignee: Globe Jiangsu Co Ltd
Priority date: 2021-01-22
Filing date: 2021-01-22
Publication date: 2021-10-22
Anticipated expiration: 2031-01-22

Abstract

The utility model provides a garden tool, include: a body; the walking wheel assembly is used for supporting the machine body to walk on the ground, and comprises a walking wheel and a wheel shaft; the height-adjusting fixed seat is connected with the machine body in a related manner, and is provided with a plurality of through holes which are separated from each other and are parallel to each other; the axle is configured to be selectively placed within the through-hole and the axle is non-rotatably received within the through-hole. Compared with the prior art, the utility model discloses a garden instrument has the advantage that heighten fast, simple structure, safe and reliable.

Description

Garden tool

Technical Field

The utility model relates to a garden instrument especially relates to a can adjust garden instrument of working height.

Background

The grass mower is a mechanical tool for trimming green belts of lawns, vegetation and the like, and consists of a blade, a casing, a power head, a walking mechanism, a handrail, a collecting device, a control device and the like. The lawn mower has wide application, is mainly applied to garden decoration trimming, grassland greening trimming, urban streets, greening scenic spots, field trimming and field weeding, particularly trimming of grass fields such as grasslands or grasslands in parks, football fields and the like, private villa gardens, vegetation in agriculture, forestry and animal husbandry fields and the like, and during use, the mowing height after mowing is determined according to the requirements of the lawn.

When the grass mower mows grass, the vegetation is trimmed to a specified height according to different vegetation trimming requirements, the too short trimming can influence the growth of the vegetation, and the too high trimming can influence the beauty. A height adjustment handle is typically used to adjust the height of the chassis and thus control the height of the trim. The heightening handle on the market does not have a self-locking function, the heightening handle is pulled towards the direction of a tire to deform the elastic part during operation, the limiting part is far away from the gear groove, the handle is loosened after the limiting part is moved to the required gear groove, the limiting part can be fixed in the required limiting groove through the elasticity of the elastic part, but the structure comprises a plurality of components, the cost and the complexity of the grass pushing machine are increased potentially, the grass pushing machine is required to be disassembled during replacement or maintenance, various tools are required, and the heightening device is a common structure of the grass pushing machine, part abrasion can be caused by frequent use, and the service life of the grass pushing machine is shortened.

In view of the above, there is a need for an improvement of the conventional height adjusting mechanism to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a garden instrument, this garden instrument have the advantage that the speed of increaseing is fast, simple structure, safe and reliable.

In order to achieve the above object, the utility model provides a garden tool, include:

a body;

the walking wheel assembly is used for supporting the machine body to walk on the ground, and comprises a walking wheel and a wheel shaft;

the height-adjusting fixed seat is connected with the machine body in a related manner, and is provided with a plurality of through holes which are separated from each other and are parallel to each other;

the axle is configured to be selectively placed within the through-hole and the axle is non-rotatably received within the through-hole.

As a further improvement of the utility model, the garden tool further comprises a fixing member, the axle passes behind the through-hole, the fixing member with wearing out of axle the partial fixing cooperation of through-hole, with will the axle with it connects to heighten the fixing base fixing.

As a further improvement of the present invention, the fixing member is a steel ball pin, the wheel axle is correspondingly provided with a pin hole for the steel ball pin to pass through, and the cross section of the steel ball pin is D-shaped or O-shaped or square-shaped.

As a further improvement, the through holes are arranged at intervals in the up-down direction, and the wheel shaft can be matched with different through holes to adjust the different working heights of the garden tools.

As a further improvement of the present invention, the plurality of through holes are arranged in two rows along the horizontal direction interval, and the two rows are arranged in a staggered manner in the height direction.

As a further improvement of the utility model, the cross section of through-hole is the D type, the at least partial cross section of shaft be with the corresponding D type of cross section of through-hole.

As a further improvement, the height-adjustable fixing base is further provided with a fixing part, the fixing part is oriented towards the top of the height-adjustable fixing base, the direction of the garden tool is overhung, and fixing through holes are formed in the fixing part.

As a further improvement, the height-adjustable fixing base is further provided with a horizontal limiting step which is limited by the upper and lower limiting bulges and the horizontal limiting step in the horizontal direction.

As a further improvement of the utility model, the machine body is provided with a concave part which is correspondingly matched with the bulge on the heightening fixed seat; and the machine body is also provided with a machine body step correspondingly matched with the horizontal limiting step on the heightening fixed seat.

As a further improvement, the wheel is provided with a ring, the ring is located the middle position of the wheel, in order to avoid the wheel follows the through-hole moves to garden tool's center pin direction.

The utility model has the advantages that: the utility model discloses a garden instrument is through being provided with the accent high fixing base that can carry out the fixing and be connected with the shaft in a plurality of not co-altitude departments, and the shaft is rotationally acceptd in the through-hole of this accent high fixing base to can realize the regulation of shaft in co-altitude department, have and increase fast, simple structure, safe and reliable's advantage.

Drawings

Fig. 1 is a perspective view of the garden tool of the present invention.

Fig. 2 is another angular perspective view of the garden tool shown in fig. 1.

Fig. 3 is a perspective view of one of the front wheels of the garden tool shown in fig. 1, assembled with a front height adjustment device and a part of the body.

Fig. 4 is another angular schematic of fig. 3.

Fig. 5 is an exploded view of fig. 3.

Fig. 6 is a perspective view of the height-adjustable fixing base of fig. 5.

Fig. 7 is a combined perspective view of the rear wheel and the rear height adjusting means of the garden tool shown in fig. 1.

Fig. 8 is a perspective view of the rear height adjusting apparatus of fig. 7.

Fig. 9 is an exploded view of the rear height adjustment assembly shown in fig. 8.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 and 2, the present invention discloses a gardening tool 100, which includes a machine body 10, a walking wheel assembly for supporting the machine body 10 and driving the machine body 10 to walk on the ground, and a handrail support 30 connected to the machine body 10 for a user to push. In this embodiment, the garden tool 100 is a double-bladed lawnmower having two blades 11, the two blades 11 each being driven by a single motor 12, the two blades 11 being staggered one behind the other. The double-blade mower 100 is provided with a grass collecting bag 13 and a rear block 14 at the rear part, so that the double-blade mower 100 has a grass collecting function and a grass chopping function. Of course, the garden tool 100 may be a single-blade mower, other types of garden or non-garden machine tools, and is not limited thereto. The structure of the lawn mower 100 will be described in detail below by taking the garden tool 100 as a lawn mower.

The road wheel assembly includes a road wheel 20 and a wheel axle 23, the road wheel 20 including a pair of front wheels 21 and a pair of rear wheels 22. The pair of rear wheels 22 are driving wheels, and each driving wheel 22 is provided with a hub motor (not numbered). The lawn mower 100 further comprises a front height adjusting device 40 for adjusting the working height of the lawn mower 100 by the front wheels 21 and a rear height adjusting device 50 for adjusting the working height of the lawn mower 100 by the rear wheels 22. In other words, the mower 100 is provided with two height adjusting devices, namely the front height adjusting device 40 and the rear height adjusting device 50, and the adjusting functions of the two height adjusting devices are independent from each other, so that the height adjusting reliability of the mower 100 can be ensured, and the requirements of long working time and large working area of commercial models can be met. Preferably, each front wheel 21 is provided with a respective front height adjustment means 40, and the two rear wheels 22 share a rear height adjustment means 50.

This is because: mowers, particularly commercial mowers, are also heavy due to their large size. If a conventional height adjustment mechanism (i.e., a height adjustment mechanism with linked front and rear wheels) is used, more wear or failure may be caused by the heavy weight of the commercial mower, and thus, the adoption of a mode of separately adjusting the heights of the front and rear wheels can ensure that extreme wear or failure is not caused by the heavy weight of the mower.

As shown in fig. 3 to 6, the front height adjusting means 40 is detachably installed between the machine body 10 and the corresponding front wheel 21 to adjust the working height of the machine body 10. One end of the wheel shaft 23 is fitted with the front wheel 21 and the other end is fitted with the front height adjusting means 40. The front height adjusting device 40 includes a height-adjusting fixing seat 41 connected to the machine body 10, one end of the wheel shaft 23 passes through the axle hole of the front wheel 21 and is locked and fixed by the nut 24, and the other end can be fixedly connected to the height-adjusting fixing seat 41 at a plurality of different heights. The height-adjustable fixing seat 41 includes a holding portion 411 fixedly connected to the machine body 10 and a height adjusting portion 412 fixedly connected to the other end of the wheel shaft 23 at a plurality of different heights. The other end of the axle 23 is non-rotatably received in the height adjusting part 412.

The front height adjusting device 40 further includes a fixing member 42, and after the other end of the axle 23 passes through the height adjusting portion 412, the fixing member 42 can be fixedly engaged with the portion of the axle 23 passing through the height adjusting portion 412, so as to fixedly connect the axle 23 and the height adjusting portion 412. Specifically, in this embodiment, the fixing element 42 is a steel ball pin, the axle 23 is correspondingly provided with a pin hole 211 for the steel ball pin 42 to pass through, and the cross section of the steel ball pin 42 is D-shaped, O-shaped, square-shaped, or other suitable shapes. After the steel ball pin 42 passes through the pin hole 211, the wheel shaft 23 is prevented from being pulled out of the heightening fixed seat 41.

The axle 23 is integrally arranged in a cylindrical shape, from the perspective of normal use of the axle 23, the upper wall surface 230 of the axle 23 is a plane, and the arrangement of the plane 230 makes at least part of the cross section of the axle 23 be D-shaped, so that the axle can not only conveniently pass through the height adjusting part 412, but also can form a good fit with the height adjusting part 412; on the other hand, the plane 230 is also conveniently provided with a pin hole 211, so that the steel ball pin 42 can conveniently penetrate through the whole wheel shaft 23, and the wheel shaft 23 is prevented from being pulled out of the heightening fixed seat 41. A ring 231 is further disposed at the middle position of the axle 23, and after the axle 23 passes through the height-adjusting fixing seat 41, the axle 23 can be limited at two sides of the height-adjusting fixing seat 41 by the ring 231 and the steel ball pin 42, so as to prevent the axle 23 from moving in the direction towards and away from the central axis of the lawn mower 100 (i.e., prevent the axle 23 from moving left and right), and further prevent the front wheel 21 from moving left and right after the front wheel 21 is fixed to the front height adjusting device 40.

The height adjusting portion 412 is formed with a plurality of through holes 413 spaced in the vertical direction and parallel to each other, the through holes 413 may also be referred to as height-adjusting through holes, the extending direction of each height-adjusting through hole 413 is parallel to the ground direction, the wheel shaft 23 is configured to be selectively placed in different height-adjusting through holes 413, and the wheel shaft 23 is non-rotatably received in the height-adjusting through holes 413, so as to adjust different working heights of the machine body 10. The plurality of height-adjusting through holes 413 are arranged in two rows arranged at intervals in the horizontal direction, and the two rows of height-adjusting through holes 413 are arranged in a staggered manner in the height direction, so that the space of the height adjusting part 412 can be fully utilized, more height-adjusting through holes 413 can be arranged, and the mower 100 has more working height options. The height-adjusting fixing base 41 may be made of a light alloy, such as an aluminum alloy or a magnesium alloy, or may be made of a high-strength polymer, such as nylon.

In one embodiment of the present application, the height-adjusting through-hole 413 has a D-shaped cross-section to correspond to the D-shaped cross-section of the other end of the hub 23. Of course, in other embodiments, the cross-section of the height-adjusting through hole 413 and the other end of the axle 23 may have other shapes, as long as the axle 23 is not rotated relative to the height-adjusting through hole 413, and the shape is not limited herein.

In this embodiment, the holding portion 411 is cantilevered from the top of the height adjusting portion 412 toward the machine body 10, and a holding through hole 414 is formed in the holding portion 411 for a fastening member 60 to pass through to fixedly connect the holding portion 411 and the machine body 10. The fastening member 60 may be a bolt and a nut, or other suitable structures capable of performing the function of holding the connection, which is not limited herein.

The height adjusting portion 412 is provided with a protrusion 415, and the machine body 10 is provided with a recess 15 correspondingly matched with the protrusion 415, so that when the height-adjusting fixing base 41 and the machine body 10 are assembled, the protrusion 415 and the recess 15 are matched with each other to achieve the limit in the vertical direction. The height adjusting portion 412 is further provided with a horizontal limiting step 416, and the machine body 10 is provided with a machine body step 16 correspondingly matched with the horizontal limiting step 416, so that when the height-adjusting fixing seat 41 and the machine body 10 are assembled, the horizontal limiting step 416 and the machine body step 16 can be matched with each other to achieve limiting in the horizontal direction.

When the height-adjustable front wheel assembly is used, the pair of front wheels 21 are directly inserted into the height-adjustable fixing seats 41 of the corresponding front height adjusting devices 40 through the corresponding wheel shafts 23, and then the fixing is realized through the mutual matching of the steel ball pins 42 and the pin holes 211, so that the height-adjustable front wheel assembly has the advantages of being fast in height adjustment, simple in structure, safe and reliable.

As shown in fig. 7 to 9 in combination with fig. 1 and 2, the rear height adjusting device 50 is mounted on the machine body 10 and directly acts on one of the rear wheels 22 to adjust the working height of the machine body 10. The rear height adjusting device 50 includes an axle side plate 51 engaged with the body 10, a shift plate 52 provided at one side of the axle side plate 51 and fixable to the body 10, and an operating member 53 provided at the other side of the axle side plate 51. The operating member 53 is located substantially above the axle side plate 51, the bottom of the axle side plate 51 is fixedly connected to a connecting shaft 221, and the other end of the connecting shaft 221 is connected to the other rear wheel 22, so that the heights of the two rear wheels 22 can be adjusted simultaneously when the rear height adjusting device 50 is operated. The axle side plate 51 is pivotally connected to the body 10 of the mower 100 at a position different from the connecting shaft 221 so that the axle side plate 51 can pivot with respect to the body 10 of the mower 100.

The gear plate 52 is provided with a plurality of gear grooves 521 of different heights, the lower side of the gear plate 52 is arc-shaped, the gear grooves 521 of different heights are distributed at different positions of the arc, and the center of the arc coincides with the pivot shaft 520 of the axle side plate 51, so that the distances from the gear grooves 521 to the pivot shaft 520 of the axle side plate 51 are consistent. The operating member 53 can be operated by a user to engage with the shift slots 521 of different heights. In this embodiment, the shift notch 521 is formed by a positioning notch opened at the bottom of the shift plate 52, but it should not be limited thereto.

The operating piece 53 includes a positioning portion 531 penetrating through the axle side plate 51 and engaged with the shift groove 521 from bottom to top. The rear height adjusting means 50 further includes an elastic member 54 elastically disposed between the operating member 53 and the wheel axle side plate 51, the elastic force of the elastic member 54 causes the positioning portions 531 to be held in the corresponding shift position grooves 521 when the operating member 53 is not controlled by an external force (i.e., in an initial state), and the elastic member 54 is compressed until the positioning portions 531 are disengaged from the shift position grooves 521 after the operating member 53 is pressed downward, so that shifting is performed. That is, the operating member 53 is operatively moved on the wheel axle side plate 51 such that the positioning portion 531 is located in or out of the shift position groove 521.

The rear height adjusting device 50 further includes a push slider 55 disposed between the elastic member 54 and the operating member 53, and the axle side plate 51 is provided with a receiving hole 511 for receiving the push slider 55 and the elastic member 54. In an embodiment of the present application, the receiving hole 511 is T-shaped, and the width of the upper end is greater than that of the lower end. The pushing slider 55 includes a mounting portion 551 received in the receiving hole 511 and a pressing portion 552 protruding out of the wheel axle side plate 51 to be in press fit with the operating member 53, the width of the mounting portion 551 is slightly smaller than the width of the lower end of the receiving hole 511, and the width of the pressing portion 552 is smaller than the width of the upper end of the receiving hole 511 and larger than the width of the lower end of the receiving hole 511.

In this embodiment, the elastic member 54 is a compression spring, one end of which elastically presses against the bottom of the accommodating hole 511, and the other end of which elastically presses against the bottom of the pushing slider 55; of course, this should not be taken as a limitation. A protrusion 510 is disposed at the bottom of the receiving hole 511, and one end of the elastic element 54 is sleeved on the protrusion 510. The bottom of the push slider 55 is provided with a mounting groove (not shown), and the other end of the elastic member 54 is disposed in the mounting groove. After the pushing slider 55 is assembled to the rear height adjusting device 50, the pushing slider 55 is abutted by the lower end of the operating member 53, so that the pushing slider 55 can only move at the lower end of the accommodating hole 511, that is, only at the lower end of the T-shaped hole, so as to prevent the pushing slider 55 from being removed from the accommodating hole 511.

The operating member 53 includes an engaging portion 532 extending in the up-down direction and engaging with the wheel axle side plate 51, an extending portion 533 extending upward from the engaging portion 532, and a handle 534 extending upward from the extending portion 533, and the positioning portion 531 is disposed on the engaging portion 532. The handle 534 is curved to extend in a horizontal direction perpendicular to the up-down direction to form a shape convenient for an operator to operate. The extension portion 533 is farther away from the body 10 in a horizontal direction than the fitting portion 532.

The engaging portion 532 has a first elongated sliding groove 535, and the operating member 53 is connected to the axle side plate 51 through the first sliding groove 535 so as to be movable up and down. In this embodiment, two first sliding grooves 535 are provided, the two first sliding grooves 535 are spaced apart in the vertical direction, and the positioning portion 531 is provided between the two first sliding grooves 535. The axle side plate 51 is provided with a second elongated sliding groove 512, the positioning portion 531 passes through the second sliding groove 512 and then is matched with the gear groove 521, and the positioning portion 531 can move in the second sliding groove 512 in the up-down direction.

The wheel axle side plate 51 is further provided with two protruding portions 513, the two protruding portions 513 are correspondingly arranged and are arranged at intervals in the vertical direction, each protruding portion 513 in this embodiment is composed of a convex column and a nut for locking and fixing the convex column, and specifically, after the convex column passes through the corresponding first sliding groove 535, the convex column is fixedly connected with the matching portion 532 by the nut; of course, when the handle 534 is pressed, the whole of the protrusion 513 can move up and down along the first sliding groove 535, and at the same time, the positioning part 531 can also move up and down along the second sliding groove 512. The nut can adjust the friction by adjusting the pressing force between the operating member 53 and the axle side plate 51.

The rear height adjusting device 50 has a simple structure and is convenient to operate, and the operating member 53 and the wheel axle side plate 51 can be positioned by using the compression spring 54. In use, since the axle side plate 51 is pivotally connected to the body 10 of the lawn mower 100 by the pivot shaft 520, and the rear wheel 22 is pivotally connected to the bottom of the axle side plate 51 by the connecting shaft 221, when the rear height adjusting device 50 is operated, the height of the two rear wheels 22 can be synchronously adjusted by only the following steps: firstly, the operating member 53 is pressed down to enable the positioning portion 531 to be quickly separated from the gear groove 521, then the operating member 53 is rotated back and forth to enable the axle side plate 51 to rotate together, meanwhile, the rear wheel 22 pivotally connected with the axle side plate 51 is enabled to rotate synchronously, after a proper working height is selected, the operating member 53 is loosened, under the action of the restoring force of the compression spring 54, the pushing slider 55 pushes the positioning portion 531 to be quickly fixed with the corresponding gear groove 521, at this time, height adjustment between the axle of the rear wheel 22 and the ground is achieved, and time and labor are saved.

To sum up, the utility model discloses a high adjusting device 40 before front wheel 21 department sets up to high adjusting device 40 realizes the regulation of the height of mowing to front wheel 21 position department before usable this, meanwhile, sets up back high adjusting device 50 through rear wheel 22 department, thereby high adjusting device 50 realizes the regulation of the height of mowing to rear wheel 22 position department after usable this, has realized the regulation of shaft 23 in different height departments on the whole, has to increase fast, simple structure, safe and reliable's advantage.

The above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A garden tool, comprising:

a body;

the method is characterized in that: the axle is configured to be selectively placed within the through-hole and the axle is non-rotatably received within the through-hole.

2. The gardening tool according to claim 1, wherein: the garden tool further comprises a fixing piece, and after the wheel shaft penetrates through the through hole, the fixing piece is fixedly matched with the part of the wheel shaft, penetrating through the through hole, so that the wheel shaft is fixedly connected with the heightening fixing seat.

3. The gardening tool according to claim 2, wherein: the fixing piece is a steel ball pin, a pin hole for the steel ball pin to penetrate through is correspondingly formed in the wheel shaft, and the cross section of the steel ball pin is D-shaped, O-shaped or square.

4. The gardening tool according to claim 1, wherein: the through holes are arranged at intervals in the up-down direction, and the wheel shaft can be matched with different through holes to adjust different working heights of the garden tool.

5. The gardening tool according to claim 4, wherein: the through holes are arranged in two rows arranged at intervals along the horizontal direction, and the two rows of through holes are staggered in the height direction.

6. The gardening tool according to claim 4, wherein: the cross section of the through hole is D-shaped, and at least part of the cross section of the wheel axle is D-shaped corresponding to the cross section of the through hole.

7. The gardening tool according to claim 1, wherein: the height-adjusting fixing seat is further provided with a fixing part, the fixing part extends from the top of the height-adjusting fixing seat towards the direction of the garden tool in a hanging mode, and a fixing through hole is formed in the fixing part.

8. The gardening tool according to claim 1, wherein: the height-adjusting fixed seat is also provided with a bulge which is limited by the garden tool in the up-down direction and a horizontal limiting step which is limited in the horizontal direction.

9. The gardening tool according to claim 8, wherein: the machine body is provided with a concave part correspondingly matched with the bulge on the heightening fixed seat; and the machine body is also provided with a machine body step correspondingly matched with the horizontal limiting step on the heightening fixed seat.

10. The gardening tool according to claim 1, wherein: the wheel shaft is provided with a circular ring, and the circular ring is positioned in the middle of the wheel shaft so as to prevent the wheel shaft from moving towards the central shaft direction of the garden tool along the through hole.