CN211152816U

CN211152816U - Zero turning radius lawn mower of integrative formula of increaseing

Info

Publication number: CN211152816U
Application number: CN201920018259.7U
Authority: CN
Inventors: 章明岗
Original assignee: Ningbo Joyer Garden Machinery Co ltd
Current assignee: Ningbo Joyer Garden Machinery Co ltd
Priority date: 2019-01-07
Filing date: 2019-01-07
Publication date: 2020-08-04
Anticipated expiration: 2029-01-07

Abstract

The utility model discloses an integral heightening type zero-turning radius lawn mower, which comprises a chassis, a front fixed bracket assembly and a rear bracket assembly at the front end and the rear end of the chassis, wherein the chassis is provided with a power device, a handrail and a grass box, the front end of the chassis is butted with the front fixed bracket assembly through a pair of parallelogram structures on a square tube, U-shaped mounting pieces at both ends of the front fixed bracket assembly can be rotatably connected with a wheel carrier assembly, a wheel rod I on the wheel carrier assembly is sleeved with a front wheel, two pairs of locking holes are respectively arranged on the two U-shaped mounting pieces, a lock pin is sleeved with a lock plate on the wheel carrier assembly through the locking holes, a pull piece I below the front fixed bracket assembly is connected with a pull piece II on the rear bracket assembly through a linkage rod, the rear bracket assembly is sleeved with the chassis in a rotating manner through two sleeves on the rear bracket assembly, rear wheels are sleeved on the wheel rods at both sides of the rear bracket assembly, the heightening handle is provided with a latch. The integral height adjustment does not influence the angle of the front wheel, the front wheel turns and is self-straightened, and the front wheel turns at a zero angle.

Description

Zero turning radius lawn mower of integrative formula of increaseing

Technical Field

The utility model relates to a technical field of lawn mower, especially a zero turning radius lawn mower of formula of increaseing of an organic whole.

Background

Lawn mowers are also known as weed trimmers, lawnmowers, lawn trimmers, and the like. A lawn mower is a mechanical tool for trimming lawns, vegetations and the like, and comprises a chassis, an engine, traveling wheels, a traveling mechanism, a blade, a handrail and a control part. The traveling mechanism is arranged on the chassis, the engine is arranged on the chassis, the output shaft of the engine is connected with the blade, the blade and the self-propelled speed change mechanism are driven by the high-speed rotation of the engine, and various grass discharge modes can be adopted by utilizing the optimized flow passage design of the blade and the chassis; the engine is used for driving the gearbox, and self-propelled or hand-propelled mowing is adopted.

The walking direction of the traditional lawn mower is fixed, the front wheel and the rear wheel can be integrally heightened when the mowing height is adjusted, and the straightness and the attractiveness of the trimmed lawn can be ensured in a field with a regular shape; however, when obstacles such as shrubs and the like or places with irregular shapes exist, the blades or other mechanisms are easy to damage due to inflexible steering, unfavorable phenomena such as poor mowing quality and operation difficulty can be caused due to the fact that the steering is unsmooth, sometimes an operator can tilt the front wheels and turn the rear wheels to the ground when steering, and the blades rotate at a high speed due to the inflexible steering, so that the operation requirements of safety regulations are not met, and meanwhile, serious potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model aims at providing a height-adjustable lawn mower with zero turning radius, which can automatically return to straight when the front wheel is turned forwards after turning, turns at the original place with zero angle and can be adjusted straightly, wherein the horizontal angle of the parallelogram structure of the front wheel does not change the rotating platform of the front wheel when the height-adjustable lawn mower is adjusted to the height-adjustable integrated synchronous level.

In order to achieve the above purpose, the technical scheme of the utility model:

an integrally heightening type lawn mower with zero turning radius comprises a chassis, a front fixed support assembly and a rear support assembly at the front end and the rear end of the chassis, wherein a power device, a handrail and a grass box are arranged on the chassis, the front end of the chassis is butted with the front fixed support assembly through a pair of parallelogram structures on a square tube, a front protective cover is arranged above the square tube, a handle penetrates through the front protective cover and is arranged on an angle iron sheet, U-shaped mounting sheets at the two ends of the front fixed support assembly are rotatably connected with a wheel carrier assembly, a wheel rod I on the wheel carrier assembly is sleeved with a front wheel, two pairs of locking holes are arranged on the two U-shaped mounting sheets, a locking pin penetrates through the locking holes and is sleeved with a locking sheet on the wheel carrier assembly, the front support assembly and the rear support assembly are rotatably connected through a linkage rod, a pulling sheet I on the front support assembly fixedly connected below the front fixed support assembly is connected with, the rear support assembly is rotatably sleeved with the two sides of the chassis through two sleeves on the rear support assembly, the wheel rods on the two sides of the rear support assembly are sleeved with rear wheels, the rear support assembly is also provided with a height-adjusting handle, and the height-adjusting handle is provided with a latch.

Preferably, the driving mode of the power device can be a plug-in type, a gasoline type, a lithium type or a solar energy type.

Preferably, the parallelogram structure between the square pipe and the front fixing support assembly comprises an angle iron sheet, a connecting sheet and two vertical sheets, the two vertical sheets are arranged on the front fixing support assembly and are respectively connected with the angle iron sheet and the connecting sheet in a rotating manner, and the other end of the connecting sheet is connected with the angle iron sheet in a rotating manner.

Preferably, the projection point of the axle center of the first wheel rod and the rotation center of the wheel carrier assembly is not on the same straight line, and the wheel carrier assembly can be inserted and pulled with the lock pin according to whether the lock pin can be rotated or not.

Preferably, the center line of the wheel rod II and the rotation center of the rear bracket assembly are not on the same straight line.

Preferably, the latch on the heightening handle is buckled with the gear plate on the chassis.

Preferably, the square tube is fixedly connected to the chassis, the riser is welded to the front fixed support assembly, and the riser is rotatably connected with the angle iron sheet, the riser is connected with the connecting sheet, the connecting sheet is connected with the angle iron sheet, the U-shaped mounting sheet is connected with the wheel carrier assembly, the first pulling sheet is connected with the linkage rod, and the second pulling sheet is connected with the linkage rod.

Preferably, the front wheels can be changed into universal wheels according to the requirement of 360-degree rotation, and the number of the front wheels can be changed according to the running requirement.

The utility model discloses a beneficial condition lies in: the mowing height is synchronously and horizontally increased integrally, the horizontal angle of a front wheel rotating platform is not changed by a parallelogram structure of a front wheel during height adjustment to ensure flexible turning, the front wheel can automatically return to be straight when the front wheel moves forwards after turning due to eccentric design, and the zero-angle turning and straight moving in situ can be adjusted.

Drawings

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

Fig. 2 is the structure schematic diagram of the utility model after the front protective cover is removed.

Fig. 3 is a schematic structural view of the front bracket assembly of the present invention.

Fig. 4 is a partial structural schematic diagram of fig. 3.

Fig. 5 is a schematic structural view of the wheel carrier assembly of the present invention.

Fig. 6 is a schematic structural view of the rear bracket assembly of the present invention.

Detailed Description

As shown in fig. 1, 2, 3, 4, 5, 6, an integral height-adjustable zero-turning-radius lawn mower comprises a chassis 1, a front fixed bracket assembly 8 and a rear bracket assembly 17 at the front and rear ends of the chassis 1, wherein a power device 2, a handrail 4 and a grass box 3 are arranged on the chassis 1, the front end of the chassis 1 is butted with the front fixed bracket assembly 8 through a pair of parallelogram structures on a square tube 5, a front protective cover 25 is arranged above the square tube 5, a handle 26 is arranged on a angle iron sheet 6 through the front protective cover 25, U-shaped mounting sheets 10 at the two ends of the front fixed bracket assembly 8 can be rotatably connected with a wheel carrier assembly 13, a wheel lever 15 on the wheel carrier assembly 13 is sleeved with a front wheel 16, two pairs of locking holes 11 are arranged on the two U-shaped mounting sheets 10, a lock pin 12 is sleeved with a lock plate 14 on the wheel carrier assembly 13 through the locking holes 11, the front carrier assembly and the rear bracket assembly 17 are rotatably connected through a linkage rod, a first pulling piece on a front support assembly fixedly connected below the front fixed support assembly 8 is connected with a second pulling piece 21 on a rear support assembly 17 through a linkage rod 22, the rear support assembly 17 is rotatably sleeved with the two sides of the chassis 1 through two sleeves 18 on the rear support assembly, rear wheels 20 are sleeved on wheel rods 19 on the two sides of the rear support assembly 17, a height-adjusting handle 23 is further arranged on the rear support assembly 17, and clamping teeth 24 are arranged on the height-adjusting handle 23. The driving mode of the power device 2 can be plug-in type, gasoline type, lithium type or solar energy. The parallelogram structure between square pipe 5 and preceding fixed bolster assembly 8 include angle iron sheet 6, connection piece 7 and two riser 9, two riser 9 set up on preceding fixed bolster assembly 8, and two riser 9 are connected with angle iron sheet 6, connection piece 7 rotary type respectively, the connection piece 7 other end is connected with angle iron sheet 6 rotary type. The axle center of the wheel rod I15 and the projection point of the rotation center of the wheel frame assembly 13 are not on the same straight line, and the wheel frame assembly 13 can be inserted and pulled in the lock pin 12 according to whether the lock pin is rotatable or not. The central line of the second wheel rod 19 is not on the same straight line with the rotation center of the rear bracket assembly 17. The latch 24 on the heightening handle 23 is buckled with the gear position of the gear position plate on the chassis 1. The square tube 5 is fixedly connected to the chassis 1, the riser 9 is welded to the front fixed support assembly 8, and the riser 9 and the angle iron sheet 6, the riser 9 and the connecting sheet 7, the connecting sheet 7 and the angle iron sheet 6, the U-shaped mounting sheet 10 and the wheel carrier assembly 13, the first pulling sheet and the linkage rod 22, and the linkage rod 22 and the second pulling sheet 21 are rotatably connected. The front wheels 16 can be changed into universal wheels according to the requirement of 360-degree rotation, and the number of the front wheels 16 can be changed according to the driving requirement.

The utility model discloses a power device 2 mows through the sword of mowing above that, and the grass that cuts down is inhaled through grass case 3 and is absorbed the back and store unified recovery, can select simultaneously that the side is arranged the grass, crushing formula covers row grass, the grass of back row of difference such as grass or collection grass mode, and handrail 4 makes things convenient for the staff to promote the use.

When the height difference of mowing carries out integrative heightening, break off heightening handle 23 manually after, make latch 24 and gear board break away from, rotate heightening handle 23 and other gear lock joints, integrative heightening realizes through sleeve 18 synchronous rotation, utilize two 21 push-and-pull gangbars 22 of pulling-on piece, gangbar 22 push-and-pull pulling-on piece one, because two 21 and riser 9 of pulling-on piece are circular rotation, thereby can heighten or reduce chassis 1, the synchronous integrative level of chassis 1 can be realized to the design of parallelogram structure and heighten, reach and mow highly unified.

The zero turning radius advance controllable type, when turning at zero angle in situ, the lock pin 12 is pulled out from the lock hole 11 and the lock plate 14, the lock pin 12 is inserted into the other lock hole 11 on one side, the lock pin 12 is prevented from being lost, a worker can realize left-right turning by pushing the handrail 4, otherwise, the lock pin 12 is inserted into the lock plate 14 and can move forward straight, the axis of the wheel lever I15 and the projection point of the rotation center of the wheel carrier 13 are not on the same straight line, so that the worker can straighten the mower by only continuously pushing after the front wheel 16 turns, and meanwhile, the locking mode of the lock rod (12) can also be selected to be a remote switch control structure for straight-line and turning conversion.

It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An integral height-adjustable zero-turning-radius lawn mower comprises a chassis (1), a front fixed support assembly (8) and a rear support assembly (17) which are arranged at the front end and the rear end of the chassis (1), and is characterized in that a power device (2), a handrail (4) and a grass box (3) are arranged on the chassis (1), the front end of the chassis (1) is butted with the front fixed support assembly (8) through a pair of parallelogram structures on a square tube (5), a front protective cover (25) is arranged above the square tube (5), a handle (26) penetrates through the front protective cover (25) to be arranged on an angle iron sheet (6), U-shaped mounting sheets (10) at the two ends of the front fixed support assembly (8) can be rotatably connected with a wheel carrier assembly (13), a front wheel (16) is sleeved on a wheel lever I (15) on the wheel carrier assembly (13), two pairs of locking holes (11) are arranged on the two U-shaped mounting sheets (10), the lock pin (12) penetrates through the lock hole (11) and is sleeved with a lock plate (14) on the wheel carrier assembly (13), the front support assembly and the rear support assembly (17) are connected in a rotating mode through a linkage rod (22), a first pull piece on the front support assembly fixedly connected with the lower side of the front fixed support assembly (8) is connected with a second pull piece (21) on the rear support assembly (17) through the linkage rod (22), the rear support assembly (17) is sleeved with the chassis (1) in a rotating mode through two sleeves (18) on the rear support assembly, rear wheels (20) are sleeved on the wheel rod (19) on the two sides of the rear support assembly (17), a height-adjusting handle (23) is further arranged on the rear support assembly (17), and clamping teeth (24) are arranged on the height-adjusting handle (23).

2. The integrated height-adjustable zero-turning-radius lawn mower as claimed in claim 1, wherein the power unit (2) is driven by plug-in power, gasoline, lithium power or solar power.

3. The integrated heightening type zero-turning-radius lawn mower as claimed in claim 1, wherein the parallelogram structure between the square tube (5) and the front fixed bracket assembly (8) comprises an angle iron sheet (6), a connecting sheet (7) and two vertical sheets (9), the two vertical sheets (9) are arranged on the front fixed bracket assembly (8), the two vertical sheets (9) are respectively rotatably connected with the angle iron sheet (6) and the connecting sheet (7), and the other end of the connecting sheet (7) is rotatably connected with the angle iron sheet (6).

4. The integral height-adjustable zero-turning-radius lawn mower as claimed in claim 1, wherein the axis of the wheel lever I (15) is not aligned with the projection point of the rotation center of the wheel carrier assembly (13), and the wheel carrier assembly (13) can be inserted and removed with the locking pin (12) according to whether the locking pin is rotatable or not.

5. The integrated height-adjustable zero-turning-radius lawn mower as claimed in claim 1, wherein the center line of the second wheel lever (19) is not aligned with the rotation center of the rear bracket assembly (17).

6. The integrated height-adjustable zero-turning-radius lawn mower as claimed in claim 1, wherein the latch (24) of the height-adjustable handle (23) is fastened to the gear plate of the chassis (1).

7. The integrated heightening type zero-turning-radius lawn mower as claimed in claim 1, wherein said square tube (5) is fixedly connected to the chassis (1), the riser (9) is welded to the front fixed bracket assembly (8), and the riser (9) and the angle iron (6) are rotatably connected, the riser (9) and the connecting piece (7), the connecting piece (7) and the angle iron (6), the U-shaped mounting piece (10) and the wheel carrier assembly (13), the first pulling piece and the linkage rod (22), and the second pulling piece (21) are rotatably connected.

8. The integrated height-adjustable zero-turning-radius lawn mower as claimed in claim 1, wherein said front wheels (16) are adapted to be universal wheels according to 360 degree rotation requirements, and the number of front wheels (16) is adapted to be variable according to driving requirements.