CN215683405U

CN215683405U - Grass cutter

Info

Publication number: CN215683405U
Application number: CN202121292572.3U
Authority: CN
Inventors: 田兵
Original assignee: Globe Jiangsu Co Ltd
Current assignee: Globe Jiangsu Co Ltd
Priority date: 2021-06-10
Filing date: 2021-06-10
Publication date: 2022-02-01
Anticipated expiration: 2031-06-10

Abstract

The utility model provides a mower, which relates to the technical field of garden mechanical equipment and comprises the following components: a frame body; a traveling wheel; a handrail support; the height adjusting device comprises a wheel axle side plate which is rotationally connected with a rotating shaft of the travelling wheel; the arc-shaped gear plate is fixedly connected with the mower frame body, and a gear hole is formed in the middle of the arc-shaped gear plate; heightening handle assembly, sliding connection is on the shaft side plate, and it uses with the cooperation of gear hole, realizes the location of chassis height to include: the positioning pin shaft penetrates through the side plate of the wheel shaft and is embedded and matched with the gear hole; the limiting component is fixed on the wheel shaft side plate, and the heightening handle assembly is connected on the wheel shaft side plate in a directional sliding manner through the limiting component; the gear hole is formed along the arc-shaped trend of the arc-shaped gear plate, the peripheral side walls of the gear hole are sealed, and a positioning notch matched with the positioning pin shaft is formed in a concave mode on the wall of an arc hole of the gear hole. The utility model solves the problem of low movement stability of the limiting part due to the unlimited moving range of the limiting part in the prior art.

Description

Grass cutter

Technical Field

The utility model relates to the technical field of garden mechanical equipment, in particular to a mower.

Background

The 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 part and the like. The lawn mower is mainly applied to garden decoration trimming, grassland greening trimming, urban streets, greening scenic spots, field trimming and field weeding, particularly trimming of grasslands or grasslands in parks, football fields and other grass fields, 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 lawns.

The height of the mower is adjusted by adjusting the height of the mower chassis to control the height of the mower. When the mower in the current market is used, the elastic piece is deformed by pulling the handle towards the direction of the tire, so that the limiting piece is far away from the gear groove; and then the limiting part is moved to a required gear groove position, and the limiting part is fixed in the required gear groove by loosening the handle through the elasticity of the elastic part, so that the grass trimming height of the mower is adjusted.

At the present stage, because the movable range of the handle is not limited, the handle and the components of the mower may collide with each other in the process of pulling the handle by a worker, so that the local damage of the mower is caused; in severe cases, the handle may interfere with the blade rotating at high speed, causing a safety hazard. Thus, there is room for improvement.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned disadvantages of the prior art, the present invention provides a lawn mower, which is used to solve the problem of low movement stability of the limiting member in the prior art.

To achieve the above and other related objects, the present invention provides a lawn mower comprising: a frame body; the walking wheel is used for the bearing frame body to walk on the ground; the handrail support is connected with the frame body so as to be pushed by a user; a height adjustment device; the height adjusting device includes: the wheel shaft side plate is rotationally connected with a rotating shaft of the mower walking wheel; the arc-shaped gear plate is fixedly connected with the mower frame body, and a gear hole is formed in the middle of the arc-shaped gear plate; heightening handle assembly, sliding connection on the shaft side plate, it with gear hole cooperation is used, realizes the location of chassis height, and includes: the positioning pin shaft penetrates through the wheel shaft side plate to be embedded and matched with the gear hole; the limiting component is fixed on the wheel shaft side plate, and the heightening handle assembly is directionally connected on the wheel shaft side plate in a sliding manner through the limiting component; the method is characterized in that: the gear hole is formed along the arc-shaped direction of the arc-shaped gear plate, the peripheral side walls of the gear hole are sealed, and a positioning notch matched with the positioning pin shaft is formed in a concave mode on the wall of an arc hole of the gear hole.

In an embodiment of the utility model, the plurality of positioning notches are arranged along an arc-shaped trend of the arc-shaped gear plate.

In an embodiment of the utility model, the plurality of positioning notches are uniformly disposed on the circular arc sidewall of the gear hole.

In an embodiment of the present invention, the number of the positioning recesses is eight.

In an embodiment of the present invention, the height-adjusting handle assembly includes: a grip; one end of the height-adjusting bent rod is fixedly connected with the handle, and the other end of the height-adjusting bent rod is connected to the wheel shaft side plate in a sliding mode through the limiting part and slides back and forth along the length direction of the wheel shaft side plate.

In an embodiment of the present invention, the height-adjusting curved rod is provided with a waist-shaped hole, and a length direction of the waist-shaped hole is parallel to a length direction of the height-adjusting curved rod.

In an embodiment of the utility model, the length of the kidney-shaped hole is greater than or equal to the height of the gear hole.

In an embodiment of the utility model, the plurality of waist-shaped holes are arranged along the length direction of the height-adjusting bent rod, the plurality of limiting parts are provided, and the number of the limiting parts is consistent with that of the waist-shaped holes, and the positions of the limiting parts correspond to those of the waist-shaped holes.

In an embodiment of the present invention, the position limiting component includes: the connecting bolt is fixed on the wheel shaft side plate, and the part of the connecting bolt penetrates through the waist-shaped hole; and the limiting nut is in threaded connection with the end part of the connecting bolt and is abutted against one side surface of the heightening bent rod, which deviates from the wheel axle side plate.

In an embodiment of the present invention, a portion of the axle side plate away from the height-adjustable handle assembly is provided with a first through hole, and a center of the first through hole is located in a length direction of the height-adjustable handle assembly; and an elastic part is arranged in the first through hole and used for realizing automatic rebound of the heightening handle assembly.

In an embodiment of the present invention, the elastic member includes: and one end of the tension spring is hooked with the second through hole in the wheel shaft side plate, and the other end of the tension spring is hooked with the waist-shaped groove in the height-adjusting bent rod.

In an embodiment of the present invention, the arc-shaped gear plate is marked with a gear mark.

As described above, the lawn mower of the present invention has the following beneficial effects:

1. the adjusting bent rod is connected to the side plate of the wheel shaft in a sliding mode through the connecting bolt and the limiting nut, so that the heightening bent rod slides directionally along the length direction of the waist-shaped hole, and the stability of the heightening bent rod during sliding is improved.

2. Through the structural mode that the gear hole is seted up in arc gear board middle part for the locating pin axle can move along the arc trend in gear hole, has reduced the condition emergence that the locating pin axle breaks away from the gear hole, increases the convenience of chassis altitude mixture control operation.

3. Through the gear mark on the arc-shaped gear plate, a user can visually observe the approximate position of the height adjustment of the chassis of the mower, so that the convenience and the accuracy of the height adjustment of the chassis are improved.

Drawings

Fig. 1 shows an isometric view of a lawnmower of the present invention.

FIG. 2 shows an isometric view of a height adjustment mechanism of a lawnmower of the present invention;

FIG. 3 is an exploded view of a height adjustment mechanism of a lawnmower according to the present invention;

FIG. 4 is a schematic view of an axle side plate of the height adjustment device of the lawn mower according to the present invention;

FIG. 5 is a schematic view of a height adjustment handle assembly of the height adjustment mechanism of the lawn mower of the present invention;

FIG. 6 is a schematic view of an arc-shaped stop plate of the height adjustment device of the lawn mower according to the present invention;

FIG. 7 is a front view of a height adjustment mechanism of a lawnmower according to the present invention;

fig. 8 shows a rear view of a height adjustment device of a lawnmower according to the present invention.

Description of the element reference numerals

100. A frame body; 200. a traveling wheel; 300. a handrail support; 400. a grass collecting bag; 10. a height adjustment device; 1. a wheel axle side plate; 11. avoiding holes; 12. a first through hole; 13. a second through hole; 2. an arc-shaped gear plate; 21. a gear hole; 22. a positioning notch; 23. identifying a gear; 3. a height-adjustable handle assembly; 31. a grip; 32. adjusting the height of the bent rod; 321. a kidney-shaped hole; 33. positioning a pin shaft; 4. a limiting component; 41. a connecting bolt; 42. a limit nut; 43. a gasket; 5. an elastic member; 51. a tension spring.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

Please refer to fig. 1 to 8. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.

Referring to fig. 1, the present invention provides a lawn mower, including a frame body 100, a road wheel 200 for supporting the frame body 100 and driving the frame body 100 to walk on the ground, and an armrest support 300 connected to the frame body 100 for a user to walk; the height adjusting device 10 is arranged between the walking wheels 200 and the frame body 100, and can realize the adjustment of the height of the chassis of the mower.

In this embodiment the mower is a double-bladed mower provided with two blades each driven individually by a motor, the two blades being staggered one behind the other. The rear part of the double-blade mower is provided with a grass collecting bag 400 and a rear block (not marked in the figure), so that the double-blade mower has a grass collecting function and a grass chopping function. Of course, the lawn mower may be a single-blade lawn mower or other types of lawn mowers, and is not limited herein.

Referring to fig. 2 and 3, the height adjusting device 10 includes: the wheel shaft side plate 1 is rotationally connected with a rotating shaft of a traveling wheel of the mower; the arc-shaped gear plate 2 is fixedly connected to the position, opposite to the wheel axle side plate 1, of the mower frame body, and a gear hole 21 is formed in the middle of the arc-shaped gear plate; the heightening handle component 3 is connected to the wheel axle side plate 1 in a sliding mode, and the heightening handle component 3 is matched with the gear hole 21 in the arc-shaped gear plate 2 for use, so that the positioning operation of the chassis height can be realized; and the limiting part 4 is fixed on the wheel axle side plate 1, and the heightening handle assembly 3 is directionally connected on the wheel axle side plate 1 in a sliding manner through the limiting part 4.

In the embodiment, the wheel axle side plate 1 is taken as a reference, one side of the wheel axle side plate close to the heightening handle assembly 3 is an upper side, and one side far away from the handle assembly 3 is a lower side; the connecting part of the wheel shaft side plate 1 and a rotating shaft of a traveling wheel of the mower in the width direction is the right side, and the other side is the left side; one side of the wheel axle side plate 1 close to the arc-shaped gear plate 2 is the front side, and one side close to the walking wheel is the rear side.

Referring to fig. 2 and 4, the axle side plate 1 is located between the arc-shaped gear plate 2 and the heightening handle assembly 3. In the embodiment, the connection position of the rotating shaft of the mower travelling wheel and the axle side plate 1 is positioned at the right position in the middle of the axle side plate 1.

Referring to fig. 2 and 5, in the present embodiment, the height-adjustable handle assembly 3 includes a grip 31, a height-adjustable curved rod 32 and a positioning pin 33. The handle 31 and one end of the heightening bent rod 32 are integrally formed, one end of the heightening bent rod 32, which is far away from the handle 31, is connected to the wheel axle side plate 1 in a sliding manner through the limiting part 4 and slides back and forth along the length direction of the wheel axle side plate 1, and the heightening bent rod 32 is positioned between the wheel axle side plate 1 and a walking wheel of the mower; a positioning pin shaft 33 is vertically fixed on one side surface of the heightening bent rod 32 close to the wheel axle side plate 1, and the positioning pin shaft 33 penetrates through the wheel axle side plate 1 and is embedded into the gear hole 21 on the arc-shaped gear plate 2.

Referring to fig. 5, the height-adjusting curved bar 32 is provided with a plurality of waist-shaped holes 321, and the length direction of the waist-shaped holes 321 is parallel to the length direction of the height-adjusting curved bar 32. In this embodiment, two waist-shaped holes 321 are provided along the length direction of the height-adjusting curved rod 32, and the length dimension of the waist-shaped holes 321 is the same as the height dimension of the gear holes 21; the limiting parts 4 correspond to the two waist-shaped holes 321 one by one, and enable the heightening bent rods 32 to directionally slide on the wheel axle side plate 1. The two waist-shaped holes 321 can increase the stability of the directional sliding of the heightening bent rod 32 and can reduce the occurrence of the lateral deviation of the end part of the heightening bent rod 32 when sliding.

Referring to fig. 3, 4 and 5, the positioning pin 33 is vertically fixed on one side of the heightening bent rod 32 close to the wheel axle side plate 1 and located between the two kidney-shaped holes 321; the wheel axle side plate 1 is provided with an avoiding hole 11, the length direction of the avoiding hole is parallel to the length direction of the wheel axle side plate 1 and corresponds to the position of the positioning pin shaft 33, the length size of the avoiding hole 11 is the same as the height size of the gear hole 21, and the positioning pin shaft 33 penetrates through the avoiding hole 11 in the wheel axle side plate 1 and is embedded into the gear hole 21 in the arc-shaped gear plate 2.

Referring to fig. 3 and 7, the number of the limiting members 4 is multiple, and the limiting members 4 and the waist-shaped holes 321 are consistent in number and corresponding in position. In the present embodiment, the stopper member 4 includes a connecting bolt 41 and a stopper nut 42. The two connecting bolts 41 penetrate through corresponding waist-shaped holes 321 on the height-adjusting bent rod 32 respectively; the part of the connecting bolt 41 penetrating into the kidney-shaped hole 321 is cylindrical, and the side wall of the connecting bolt 41 is abutted against the wall of the kidney-shaped hole 321; the part of the connecting bolt 41 penetrating through the waist-shaped hole 321 is provided with a thread, the limiting nut 42 is in threaded connection with the part, one side wall of the limiting nut 42 is abutted against one side surface of the heightening bent rod 32 close to the mower travelling wheel, and the limiting nut 42 is in one-to-one correspondence with the connecting bolt 41.

Referring to fig. 3, a gasket 43 is disposed on the connecting bolt 41 and located between the height-adjusting curved rod 32 and the axle side plate 1, and two side surfaces of the gasket 43 are respectively abutted against one side surfaces of the height-adjusting curved rod 32 and the axle side plate 1. The washer 43 may function to increase contact area, reduce pressure, prevent loosening, and protect parts and screws. In this embodiment, the stop nut 42 and the spacer 43 should not be too large with the abutting force of the two side surfaces of the heightening bent rod 32, and the excessively large abutting force may cause the heightening bent rod 32 to be locked, so that the heightening bent rod 32 cannot directionally slide, and further the adjustment operation of the chassis height cannot be completed.

Referring to fig. 4 and 7, a first through hole 12 is formed in the axle side plate 1 at the lower side of the height-adjusting bent rod 32, and the length direction of the first through hole 12 is parallel to the length direction of the axle side plate 1; when the positioning pin 33 is inserted into the gear hole 21, the first through hole 12 partially overlaps the waist-shaped hole 321 at the lower side of the height-adjusting curved rod 32. An elastic part 5 is arranged in the first through hole 12 and used for realizing automatic rebound of the heightening handle assembly 3.

Referring to fig. 7 and 8, in the present embodiment, the elastic member 5 is a tension spring 51. The wheel axle side plate 1 is provided with a second through hole 13 and is positioned at the lower side of the first through hole 12, and the avoidance hole 11, the first through hole 12, the second through hole 13 and the connecting bolt 41 are positioned on the same axis; one end of the tension spring 51 is hooked with the second through hole 13, and the other end is hooked with the waist-shaped groove 321 on the side of the heightening bent rod 32 far away from the grip 31.

Referring to fig. 6 and 7, the arc-shaped shift plate 2 is located on a side of the axle side plate 1 away from the heightening bent rod 32, and the arc-shaped shift plate 2 is vertically arranged. The gear hole 21 is formed along the arc-shaped trend of the arc-shaped gear plate 2, a positioning notch 22 matched with the positioning pin shaft 33 is formed on the wall of an arc hole of the gear hole 21 in a concave mode, and a plurality of positioning notches 22 are formed along the arc-shaped trend of the arc-shaped gear plate 1. In the present embodiment, eight positioning notches 22 are formed in the shift position hole 21 and are uniformly distributed on the circular arc sidewall of the shift position hole 21; the opening of each positioning notch 22 and the arc side wall of the gear hole 21 are arranged in a round angle mode, and the positioning pin shaft 33 can be conveniently embedded into the positioning notches through the structure.

In the process of adjusting the height of the chassis, the positioning pin shaft 33 can stably penetrate through the gear hole 21, so that the situation that the positioning pin shaft 33 is separated from the gear hole 21 can be avoided; the structural design of a plurality of positioning notches 22 enables the adjustment of the height of the chassis to be diversified, so that the mower is suitable for different garden design requirements, and the applicability is improved.

Referring to fig. 6, the arc outer side wall of the arc-shaped shift plate 2 is marked with shift marks 23, and the number and positions of the shift marks 23 correspond to the positioning notches 22. The gear mark 23 is convenient for a user to visually observe the approximate position of the chassis height adjustment of the mower, so that the user can move the positioning pin shaft 33 on the adjusting bent rod to the positioning notch 22 corresponding to the gear mark 23 according to actual requirements, and the convenience and the accuracy of the chassis height adjustment are improved.

Through the above description, in practical use, the user can lift the adjusting curved rod 32 upwards by the grip 31, so that the adjusting curved rod 32 slides along the length direction of the upper kidney-shaped hole 321, and the positioning pin 33 is disengaged from the positioning notch 22 and abuts against the upper side wall of the shift hole 21 on the arc-shaped shift plate 2; then, the adjusting bent rod 32 is rotated, so that the adjusting bent rod 32 and the wheel axle side plate 1 rotate along the fixed axis of the walking wheel rotating shaft, and the positioning pin shaft 33 is rotated to the upper part of the corresponding positioning notch 22 according to the actual use requirement; then, by releasing the handle 31, the tension spring 51 hooked on the end of the heightening bent rod 32 will make the heightening bent rod 32 automatically rebound, so that the positioning pin 33 is inserted into the corresponding positioning notch 22, thereby completing the adjustment of the chassis height.

In summary, the heightening bent rod 32 is connected to the wheel axle side plate 1 in a sliding manner through the connecting bolt 41 and the limiting nut 42, so that the heightening bent rod 32 slides directionally along the length direction of the kidney-shaped hole 321, and the stability of the heightening bent rod 32 during sliding is improved; in addition, through the structural style that gear hole 21 was seted up at 2 middle parts of arc gear board for positioning pin 33 can move along the arc trend of gear hole 21, has reduced the condition emergence that positioning pin 33 breaks away from gear hole 21, increases the convenience of chassis height control operation. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the utility model. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. A lawn mower, comprising:

a frame body;

the walking wheel is used for the bearing frame body to walk on the ground;

the handrail support is connected with the frame body so as to be pushed by a user;

a height adjustment device;

the height adjusting device includes:

the wheel shaft side plate is rotationally connected with a rotating shaft of the mower walking wheel;

the arc-shaped gear plate is fixedly connected with the mower frame body, and a gear hole is formed in the middle of the arc-shaped gear plate;

heightening handle assembly, sliding connection on the shaft side plate, it with gear hole cooperation is used, realizes the location of chassis height, and includes:

the positioning pin shaft is vertically fixed on one side surface of the heightening bent rod close to the wheel shaft side plate, and penetrates through the wheel shaft side plate to be embedded and matched with the gear hole;

the limiting component is fixed on the wheel shaft side plate, and the height-adjusting handle assembly is directionally connected on the wheel shaft measuring plate in a sliding manner through the limiting component;

the method is characterized in that: the gear hole is formed along the arc-shaped direction of the arc-shaped gear plate, the peripheral side walls of the gear hole are sealed, and a positioning notch matched with the positioning pin shaft is formed in a concave mode on the wall of an arc hole of the gear hole.

2. A lawnmower as claimed in claim 1, wherein: the positioning notches are provided with a plurality of positioning notches along the arc-shaped trend of the arc-shaped gear plate.

3. A lawnmower as claimed in claim 2, wherein: the positioning notches are uniformly arranged on the arc side wall of the gear hole.

4. A lawnmower as claimed in claim 3, wherein: the number of the positioning notches is eight.

5. A lawnmower as claimed in claim 1, wherein: the heightening handle assembly further comprises:

a grip;

one end of the height-adjusting bent rod is fixedly connected with the handle, and the other end of the height-adjusting bent rod is connected to the wheel shaft side plate in a sliding mode through the limiting part and slides back and forth along the length direction of the wheel shaft side plate.

6. A lawnmower according to claim 5, wherein: waist-shaped holes are formed in the height-adjusting bent rods, and the length directions of the waist-shaped holes are parallel to the length directions of the height-adjusting bent rods.

7. A lawnmower according to claim 6, wherein: the length of the waist-shaped hole is larger than or equal to the height of the gear hole.

8. A lawnmower according to claim 7, wherein: the waist type hole is followed it is provided with a plurality ofly to increase knee-beam length direction, just stop part is a plurality of, just stop part with the quantity in waist type hole is unanimous, and the position corresponds.

9. A lawnmower as claimed in claim 8, wherein: the limiting part comprises:

the connecting bolt is fixed on the wheel shaft side plate, and the part of the connecting bolt penetrates through the waist-shaped hole;

and the limiting nut is in threaded connection with the end part of the connecting bolt and is abutted against one side surface of the heightening bent rod, which deviates from the wheel axle side plate.

10. A lawnmower according to claim 5, wherein: a first through hole is formed in the part, far away from the height-adjusting handle assembly, of the wheel axle side plate, and the center of the first through hole is located in the length direction of the height-adjusting handle assembly; and an elastic part is arranged in the first through hole and used for realizing automatic rebound of the heightening handle assembly.

11. A lawnmower as claimed in claim 10, wherein: the elastic member includes:

and one end of the tension spring is hooked with the second through hole in the wheel shaft side plate, and the other end of the tension spring is hooked with the waist-shaped groove in the height-adjusting bent rod.

12. A lawnmower as claimed in claim 1, wherein: and the arc-shaped gear plate is marked with a gear mark.