Universal wheel structure of mower
By designing a universal wheel structure including a fixed disc, a rotating ring, driven gear, drive gear, wheel and rotating frame, the problem of labor-intensive operation of traditional lawn mowers during cornering is solved, convenient rotation and reduced operating force consumption is achieved, and the stability and comfort of the lawn mower is improved through shock absorption and buffering design.
Patent Information
- Application Number
- CN202421539908.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-02
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-07-02
AI Technical Summary
Traditional lawn mowers require operators to force control the handle and drive wheels when turning, which makes it difficult to operate and is inconvenient for different operators, especially when the grassy road surface is uneven.
A universal wheel structure is designed, including a fixed disc, a rotating ring, a driven gear, a drive gear, a wheel and a rotating frame. The driven gear drives the driven gear and the rotating ring to achieve the offset and rotation of the wheel, and enhance the convenience and stability of rotation.
The convenience of the lawn mower rotating in any direction is achieved, the strength consumption of the operator is reduced, and the impact force of the wheels on bumpy roads is alleviated through the design of shock absorbing springs and telescopic springs.
Smart Images
Figure CN222583043U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lawn mowers, in particular to a universal wheel structure of a lawn mower. Background Art
[0002] A lawn mower, also known as a weed cutter, lawn mower, lawn trimmer, etc., is a mechanical tool used to mow lawns, vegetation, etc. It is composed of a cutter disc, an engine, running wheels, a traveling mechanism, a blade, a collision mechanism, and a control part.
[0003] In traditional technology, when the lawn mower is in use, a group of rotating blades are installed at the bottom to cut the roots of weeds. When turning is required, the operator needs to forcibly control the handle and forcibly shift the drive wheel in place to make the lawn mower turn around. This operation is convenient and quick, but different operators have different strengths when controlling the handle. Forcibly shifting it is time-consuming and labor-intensive. At the same time, if the grass surface is uneven, it will be more laborious to control the steering of the lawn mower by using the handle.
[0004] Therefore, it is particularly important to improve the universal wheel structure of the existing lawn mower, design a new universal wheel structure of the lawn mower to solve the above technical defects, and improve the practicality of the universal wheel structure of the overall lawn mower. Utility Model Content
[0005] The utility model aims to provide a universal wheel structure of a lawn mower to solve the problems raised in the above-mentioned background technology.
[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0007] A universal wheel structure for a lawn mower comprises a lawn mower, wherein the bottom of the lawn mower is symmetrically rotatably connected to a driving wheel, the top of the lawn mower is rotatably connected to a handle, a steering assembly is installed at the bottom of the front end of the lawn mower, the steering assembly is used to rotate the lawn mower in any direction when it moves, and the steering assembly comprises a fixed plate, a rotating ring, a driven gear, a driving gear, a wheel and a rotating frame, the fixed plate is fixedly connected to the bottom of the front end of the lawn mower, the rotating ring is rotatably connected to the inside of the fixed plate, the driven gear is fixedly connected to the top of the rotating ring, the driving gear is meshedly connected to the outside of the driven gear, the wheel is rotatably connected to the inside of the rotating ring, and the rotating frame is rotatably connected to the outside of the wheel.
[0008] As a preferred solution of the utility model, sliding grooves are symmetrically provided on the inner side wall of the rotating ring, and anti-skid grooves are provided on the outside of the wheel, and the anti-skid grooves are distributed at equal intervals.
[0009] As a preferred solution of the utility model, the rotating frames are provided with two groups, a transverse axis is fixedly connected between the two groups of the rotating frames, and the transverse axis passes through the inner middle of the wheel and is rotatably connected to the wheel.
[0010] As a preferred solution of the utility model, the top and bottom of the rotating frame are symmetrically rotatably connected with auxiliary wheels, and the auxiliary wheels are rollingly connected with the rotating ring through a sliding groove.
[0011] As a preferred solution of the utility model, the outside of the fixed disk is symmetrically fixedly connected with a connecting frame, the inside of the connecting frame is slidably connected with a limiting column, the outside of the limiting column is fixedly connected with a limiting plate, and the outside of the limiting column is located at the bottom of the limiting plate and is sleeved with a shock-absorbing spring.
[0012] As a preferred solution of the utility model, a connecting column is fixedly connected between the limit columns, a moving block is slidably connected between the connecting columns, a connecting rod is rotatably connected to the top of the moving block, an end of the connecting rod away from the moving block is rotatably connected to a mounting seat, and a telescopic spring is sleeved on the outside of the connecting column and on the side away from the moving block.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] In the utility model, the driving gear drives the driven gear to rotate, thereby driving the rotating ring and the slide groove to rotate synchronously, thereby auxiliary wheel and slide groove friction, realize the rotation of the rotating frame, and the design of the horizontal axis realizes the normal operation of the wheel. When encountering a bumpy road section, the limit column is pressed downward inside the connecting frame, thereby realizing the contraction of the shock-absorbing spring. At the same time, the front end of the lawn mower is pressed downward synchronously, thereby realizing the downward squeezing of the mounting seat, thereby completing the mutual expansion of the connecting rods, driving the moving blocks to move away from each other, thereby squeezing the telescopic spring, completing the force unloading work, and further alleviating the impact force on the wheel. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0016] Figure 2 This is an overall schematic diagram of the steering assembly of the utility model;
[0017] Figure 3 This is a schematic diagram of the internal structure of the steering assembly of the utility model;
[0018] Figure 4 This is a schematic diagram of the separation structure of the steering assembly of the utility model;
[0019] Figure 5 This is a schematic diagram of the connecting column structure of the utility model.
[0020] In the figure: 1. lawn mower; 2. driving wheel; 3. handle; 4. steering assembly; 401. fixed plate; 402. rotating ring; 403. driven gear; 404. driving gear; 405. wheel; 406. rotating frame; 407. slide groove; 408. horizontal axis; 409. auxiliary wheel; 5. connecting frame; 6. limit column; 7. shock-absorbing spring; 8. connecting column; 9. moving block; 10. connecting rod; 11. telescopic spring. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0022] Example:
[0023] See also Figure 1-Figure 5 , the utility model provides a technical solution:
[0024] A universal wheel structure of a lawn mower, comprising a lawn mower 1, a driving wheel 2 is symmetrically rotatably connected to the bottom of the lawn mower 1, a handle 3 is rotatably connected to the top of the lawn mower 1, and a steering assembly 4 is installed at the bottom of the front end of the lawn mower 1;
[0025] The steering assembly 4 is used to rotate the lawn mower 1 in any direction when it moves.
[0026] For further information, see Figure 1 , Figure 2 , Figure 3 and Figure 4In this embodiment, the steering assembly 4 includes a fixed plate 401, a rotating ring 402, a driven gear 403, a driving gear 404, a wheel 405 and a rotating frame 406. The fixed plate 401 is fixedly connected to the bottom of the front end of the lawn mower 1, the rotating ring 402 is rotatably connected to the inside of the fixed plate 401, the driven gear 403 is fixedly connected to the top of the rotating ring 402, the driving gear 404 is meshed and connected to the outside of the driven gear 403, the wheel 405 is rotatably connected to the inside of the rotating ring 402, and the rotating frame 406 is rotatably connected to the outside of the wheel 405. When the lawn mower 1 is in use, a set of rotating blades are installed at the bottom thereof. The blade can be used to cut the roots of weeds. However, when turning is required, the operator needs to forcibly control the handle 3 and forcibly offset the driving wheel 2 in place, so that the lawn mower 1 turns around, which is very laborious. By connecting the bottom of the driving gear 404 with the output end of the motor, the driving gear 404 is meshed with the driven gear 403, so that the driven gear 403 rotates, thereby driving the rotating ring 402 to rotate, so that the rotating frame 406 rotates inside the rotating ring 402, and the wheel 405 is offset, thereby realizing rotation at any angle, which greatly improves convenience.
[0027] For further information, see Figure 1 , Figure 2 , Figure 3 and Figure 4 In this embodiment, the inner wall of the rotating ring 402 is symmetrically provided with sliding grooves 407, and the outer side of the wheel 405 is provided with anti-skid grooves, which are evenly spaced. Through the design of the anti-skid grooves, the friction between the wheel 405 and the ground is increased, and the grip is maintained more effectively.
[0028] For further information, see Figure 1 , Figure 2 , Figure 3 and Figure 4 In this embodiment, two groups of rotating frames 406 are provided, and a horizontal axis 408 is fixedly connected between the two groups of rotating frames 406, and the horizontal axis 408 passes through the middle of the inner part of the wheel 405 and is rotatably connected to the wheel 405. The top and bottom of the rotating frame 406 are symmetrically rotatably connected with auxiliary wheels 409, and the auxiliary wheels 409 are rollingly connected to the rotating ring 402 through the slide groove 407. The rotating ring 402 rotates to realize the synchronous rotation of the slide groove 407, so that the friction between the auxiliary wheels 409 and the slide groove 407 realizes the rotation of the rotating frame 406. At the same time, the design of the horizontal axis 408 realizes that the wheel 405 can operate normally.
[0029] For further information, see Figure 2 and Figure 5In this embodiment, the outside of the fixed disk 401 is symmetrically fixedly connected with a connecting frame 5, the inside of the connecting frame 5 is slidably connected with a limiting column 6, the outside of the limiting column 6 is fixedly connected to a limiting plate, and the outside of the limiting column 6 is located at the bottom of the limiting plate and is sleeved with a shock-absorbing spring 7. When encountering a bumpy road section, the wheel 405 will fall from a high place to a low place, so that the limiting column 6 is squeezed downward inside the connecting frame 5, thereby realizing the contraction of the shock-absorbing spring 7, thereby unloading the vibration force.
[0030] For further information, see Figure 2 and Figure 5 In this embodiment, a connecting column 8 is fixedly connected between the limit columns 6, and a moving block 9 is slidably connected between the connecting columns 8. The top of the moving block 9 is rotatably connected to a connecting rod 10, and the end of the connecting rod 10 away from the moving block 9 is rotatably connected to a mounting seat. A telescopic spring 11 is sleeved on the outside of the connecting column 8 and on the side away from the moving block 9. When on a bumpy road, the front end of the lawn mower 1 will shake up and down, thereby squeezing the mounting seat downward, thereby completing the mutual expansion of the connecting rods 10, driving the moving blocks 9 away from each other, thereby squeezing the telescopic spring 11, completing the force unloading work, and alleviating the impact force on the wheel 405.
[0031] In this embodiment, the implementation scenario is specifically as follows: when the lawn mower 1 is in use, a group of rotating blades are installed at the bottom thereof to cut the roots of weeds. However, when turning is required, the operator needs to forcibly control the handle 3 and forcibly deviate the driving wheel 2 in situ, so that the lawn mower 1 can be turned in a certain direction, which is very laborious. By connecting the bottom of the driving gear 404 with the output end of the motor, the driving gear 404 is meshed with the driven gear 403, so that the driven gear 403 rotates, thereby driving the rotating ring 402 to rotate, and realizing the synchronous rotation of the slide groove 407, so that the auxiliary wheel 409 and the slide groove 407 can rotate synchronously. The friction between the grooves 407 enables the rotating frame 406 to rotate. At the same time, the design of the horizontal axis 408 enables the wheel 405 to operate normally. When encountering a bumpy road section, the wheel 405 will fall from a high place to a low place, and the limit column 6 will be squeezed downward inside the connecting frame 5, so that the shock-absorbing spring 7 will contract, thereby unloading the vibration force. At the same time, the front end of the lawn mower 1 will be pressed down synchronously, so that the mounting seat will be squeezed downward, thereby completing the mutual expansion of the connecting rods 10, driving the moving blocks 9 to move away from each other, thereby squeezing the telescopic spring 11, completing the force unloading work, and further alleviating the impact force on the wheel 405.
[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A universal wheel structure for a lawn mower, comprising a lawn mower (1), characterized in that: The bottom of the lawn mower (1) is symmetrically rotatably connected to a driving wheel (2), the top of the lawn mower (1) is rotatably connected to a handle (3), a steering assembly (4) is installed at the bottom of the front end of the lawn mower (1), the steering assembly (4) is used to rotate the lawn mower (1) in any direction when it moves, and the steering assembly (4) includes a fixed plate (401), a rotating ring (402), a driven gear (403), a driving gear (404), a wheel (405) and a rotating frame (406). ), the fixed plate (401) is fixedly connected to the bottom of the front end of the lawn mower (1), the rotating ring (402) is rotatably connected to the inside of the fixed plate (401), the driven gear (403) is fixedly connected to the top of the rotating ring (402), the driving gear (404) is meshedly connected to the outside of the driven gear (403), the wheel (405) is rotatably connected to the inside of the rotating ring (402), and the rotating frame (406) is rotatably connected to the outside of the wheel (405).
2. The universal wheel structure of a lawn mower according to claim 1, characterized in that: The inner side wall of the rotating ring (402) is symmetrically provided with sliding grooves (407), and the outer side of the wheel (405) is provided with anti-skid grooves, and the anti-skid grooves are distributed at equal intervals.
3. The universal wheel structure of a lawn mower according to claim 1, characterized in that: The rotating frames (406) are provided with two groups, and a transverse axis (408) is fixedly connected between the two groups of rotating frames (406). The transverse axis (408) passes through the inner middle of the wheel (405) and is rotationally connected to the wheel (405).
4. The universal wheel structure of a lawn mower according to claim 2, characterized in that: The top and bottom of the rotating frame (406) are symmetrically rotatably connected with auxiliary wheels (409), and the auxiliary wheels (409) are rollingly connected to the rotating ring (402) through a sliding groove (407).
5. The universal wheel structure of a lawn mower according to claim 1, characterized in that: The outside of the fixed disk (401) is symmetrically fixedly connected to a connection frame (5), the inside of the connection frame (5) is slidably connected to a limiting column (6), the outside of the limiting column (6) is fixedly connected to a limiting plate, and the outside of the limiting column (6) is located at the bottom of the limiting plate and is sleeved with a shock-absorbing spring (7).
6. The universal wheel structure of a lawn mower according to claim 5, characterized in that: A connecting column (8) is fixedly connected between the limit columns (6), a moving block (9) is slidably connected between the connecting columns (8), a connecting rod (10) is rotatably connected to the top of the moving block (9), and an end of the connecting rod (10) away from the moving block (9) is rotatably connected to a mounting seat, and a telescopic spring (11) is sleeved on the outside of the connecting column (8) and on the side away from the moving block (9).