A lawn care machine

By designing a guide assembly and spring linkage structure on the lawn cleaner, the problem of neglecting to check the oil before starting is solved, thus improving the service life and reliability of the equipment.

CN224386225UActive Publication Date: 2026-06-23高波

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
高波
Filing Date
2025-07-28
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing lawn mowers often neglect to check the engine oil before starting, leading to poor lubrication, increased risk of engine wear or malfunction, and affecting the equipment's lifespan.

Method used

A starter pull rope structure was designed, including a guide assembly, a movable seat, a spring, and a limit block. This structure ensures that the engine oil must be checked before starting. The pull rope drives the dipstick cap through the linkage structure of the guide assembly and the spring, ensuring that the engine oil is checked before each start.

Benefits of technology

It effectively avoids damage to gasoline engines caused by poor lubrication, thus improving the service life and reliability of the equipment.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224386225U_ABST
    Figure CN224386225U_ABST
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Abstract

The utility model discloses a lawn cleaning machine, including lawn cleaning machine body and install on the lawn cleaning machine body's starting pull rope, oil gauge, the machine cover top fixed connection of lawn cleaning machine body has the guide component and mounting seat, the top fixed connection of mounting seat has the frame, one side inner wall fixed connection of frame has two springs, and the other end of two spring is commonly fixed connection and has the movable seat, in the utility model, through the guide component, ensure the stable direction of starting pull rope, utilize the linkage structure of movable seat and spring in frame simultaneously, make the oil gauge screw cap when pulling starting pull rope simultaneously drive, make the operator before starting must pull out oil gauge and check, the cooperation design of movable plate and limiting block makes starting pull rope when resetting automatic recovery blocking state, ensure that every time before starting all need to complete oil check, thereby effectively avoid the gasoline engine damage caused by bad lubrication, improved the service life and reliability of equipment.
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Description

Technical Field

[0001] This utility model relates to the field of lawn cleaning machine technology, and in particular to a lawn cleaning machine. Background Technology

[0002] A lawn mower, also known as a lawn trimmer, is a mechanized greening and environmentally friendly piece of equipment used for cutting grass and mowing lawns. It is widely used in gardens, sports fields, street greening, and private gardens. It mainly consists of a blade disc, engine, wheels, blades, and a control system. The engine drives the blades to rotate at high speed to trim the lawn.

[0003] In existing lawnmower designs, checking the engine oil before starting is crucial. It's essential to ensure the oil level is sufficient and not deteriorated (e.g., blackened or emulsified) to prevent engine damage due to poor lubrication. However, because the dipstick and starter cord are located separately, operators often overlook this step and pull the cord directly to start the machine. This increases the risk of engine wear or malfunction due to abnormal oil levels, affecting the lawnmower's lifespan.

[0004] Therefore, we have proposed a lawn cleaning machine. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a lawn cleaning machine.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a lawn cleaning machine, comprising a lawn cleaning machine body and a start-up pull rope and a dipstick installed on the lawn cleaning machine body, wherein a guide assembly and a mounting base are fixedly connected to the top of the cover of the lawn cleaning machine body;

[0007] A frame is fixedly connected to the top of the mounting base. Two springs are fixedly connected to the inner wall of one side of the frame. The other ends of the two springs are fixedly connected to a movable seat. A pull rope is fixedly connected to the outer surface of the movable seat on one side of the spring. The pull rope passes through the frame and is fixedly connected to the top cap of the dipstick.

[0008] The movable seat has a mounting groove on the side away from the guide component. A movable plate is hinged in the mounting groove, and the actuation rope passes through the gap between the movable plate and the frame.

[0009] A limit block is fixedly sleeved on the outer surface of the starting pull rope.

[0010] Furthermore, the guide assembly includes a bracket, which is fixedly installed on the top of the cover of the lawnmower body. A guide ring is fixedly connected to the top of the bracket, and the guide ring is sleeved on the outer surface of the start-up pull rope. This structure can effectively constrain the movement trajectory of the start-up pull rope and prevent the pull rope from deviating during the pulling process.

[0011] Furthermore, the inner top and inner bottom of the frame are fixedly connected to guide rails, and the guide rails are slidably connected to the movable seat. The guide rails enable the movable seat to move smoothly in a predetermined direction and avoid jamming.

[0012] Furthermore, the top and bottom of the movable plate are fixedly connected to rotating shafts, both of which are installed through mounting slots and are fixedly connected to the movable seat by a spiral spring. The elastic force of the spiral spring keeps the movable plate in its initial blocking state without external force.

[0013] Furthermore, the limiting block is a trapezoidal frustum, with the larger end of the limiting block located on one side of the guide ring, which facilitates the quick reset of the limiting block.

[0014] Furthermore, the frame is located between the guide ring and the limiting block. This layout makes the linkage mechanism compact, makes reasonable use of space, and ensures that the interaction between the limiting block and the movable plate is accurate and reliable.

[0015] The beneficial effects of this utility model are:

[0016] In use, this invention ensures stable guidance of the starter cord through a guide assembly. Simultaneously, the linkage between the movable seat and spring within the frame causes the dipstick cap to rotate synchronously when the starter cord is pulled, requiring the operator to remove the dipstick for inspection before starting. The coordinated design of the movable plate and limit block ensures the starter cord automatically returns to its blocking state upon reset, guaranteeing an oil check before each start. This effectively prevents engine damage due to poor lubrication, improving the equipment's lifespan and reliability. Attached Figure Description

[0017] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 For the present utility model Figure 1 Enlarged view of point A in the middle;

[0020] Figure 3 This is a three-dimensional first-view structural diagram of the frame of this utility model;

[0021] Figure 4 This is a schematic diagram of the three-dimensional second-view structure of the frame of this utility model;

[0022] Figure 5 This is a schematic diagram of the spiral spring mounting structure of this utility model.

[0023] The attached figures are labeled as follows:

[0024] 1. Lawn cleaner body; 2. Guide ring; 3. Starter pull rope; 4. Frame; 5. Limit block; 6. Oil dipstick; 7. Pull rope; 8. Bracket; 9. Spring; 10. Mounting groove; 11. Movable plate; 12. Guide rail; 13. Movable seat; 14. Mounting seat; 15. Scroll spring; 16. Rotary shaft. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figures 1-5 As shown, a lawn mower is disclosed, comprising a lawn mower body 1 and a starter rope 3 and a dipstick 6 installed on the lawn mower body 1. A guide assembly and a mounting base 14 are fixedly connected to the top of the cover of the lawn mower body 1. The guide assembly includes a bracket 8, which is fixedly installed on the top of the cover of the lawn mower body 1. A guide ring 2 is fixedly connected to the top of the bracket 8, and the guide ring 2 is sleeved on the outer surface of the starter rope 3. The position of the guide ring 2 can be adjusted according to specific needs. This application is only for schematic illustration to avoid affecting the operation of the starter rope 3. At the same time, the guide ring 2 is made of wear-resistant material to ensure its service life.

[0027] A frame 4 is fixedly connected to the top of the mounting base 14. Two springs 9 are fixedly connected to the inner wall of one side of the frame 4. The other ends of the two springs 9 are fixedly connected to a movable seat 13. Guide rails 12 are fixedly connected to the inner top and inner bottom of the frame 4, and the guide rails 12 are slidably connected to the movable seat 13. A pull rope 7 is fixedly connected to the outer surface of the movable seat 13 on one side of the springs 9. The pull rope 7 passes through the frame 4 and is fixedly connected to the top cap of the dipstick 6. A wear-resistant sliding sleeve is sleeved on the outer surface of the pull rope 7. The sliding sleeve is fixedly embedded in the frame 4. The pull rope 7 itself is made of steel wire rope to improve the service life of the pull rope 7.

[0028] A mounting groove 10 is provided on the side of the movable seat 13 away from the guide assembly. A movable plate 11 is hinged in the mounting groove 10, and the start-up pull rope 3 passes through the gap between the movable plate 11 and the frame 4. The top and bottom of the movable plate 11 are fixedly connected to the rotating shafts 16. Both rotating shafts 16 pass through the mounting groove 10 and are fixedly connected to the movable seat 13 by a spiral spring 15. The spiral spring 15 is sleeved on the outer surface of the rotating shaft 16, with one end fixedly connected to the rotating shaft 16 and the other end fixedly connected to the inner wall of the movable seat 13, ensuring that the movable plate 11 can be provided with a return spring force.

[0029] The outer surface of the starting pull rope 3 is fixedly fitted with a limiting block 5. The limiting block 5 is a trapezoidal frustum, with the larger end of the limiting block 5 located on one side of the guide ring 2. The frame 4 is located between the guide ring 2 and the limiting block 5.

[0030] Working principle: When the operator pulls the start rope 3, the limit block 5 fixed on the start rope 3 moves with the start rope 3. Since the initial position of the limit block 5 is blocked by the movable plate 11 (the movable plate 11 is held in a predetermined state by the spiral spring 15, and the mounting groove 10 restricts its rotation towards the guide ring 2), the movable seat 13 must first be pulled by the pull rope 7, so that the movable seat 13 moves along the guide rail 12 and compresses the spring 9 until the movable plate 11 completely clears the passage, and the limit block 5 can pass through the gap of the frame 4, so that the start rope 3 can be fully pulled out. Since the pull rope 7 is connected to the cap of the dipstick 6, the dipstick 6 must be pulled out first during the pulling process to facilitate pulling the movable seat 13. After the limit block 5 passes, the dipstick 6 is put back, and the movable plate 11 and the movable seat 13 are reset under the action of the spring 9.

[0031] When the starter cord 3 is released, it resets under its own elastic force. When the limit block 5 contacts the movable plate 11, it overcomes the elastic force of the spiral spring 15 and pushes the movable plate 11 to rotate. After the limit block 5 disengages from the movable plate 11, the spiral spring 15 drives the movable plate 11 to reset via the rotating shaft 16, thus re-forming a block against the limit block 5. Therefore, the oil dipstick 6 must be pulled out to check the engine oil before each start-up; otherwise, the starting operation cannot be completed.

[0032] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A lawn mower, comprising a lawn mower body (1) and a starter rope (3) and a dipstick (6) mounted on the lawn mower body (1), characterized in that: The top of the cover of the lawn cleaner body (1) is fixedly connected with a guide assembly and a mounting base (14); The top of the mounting base (14) is fixedly connected to a frame (4), and two springs (9) are fixedly connected to the inner wall of one side of the frame (4). The other ends of the two springs (9) are fixedly connected to a movable seat (13). The outer surface of the movable seat (13) is fixedly connected to a pull rope (7) on one side of the spring (9), and the pull rope (7) passes through the frame (4) and is fixedly connected to the top cap of the dipstick (6). The movable seat (13) has a mounting groove (10) on the side away from the guide assembly. A movable plate (11) is hinged in the mounting groove (10), and the start-up pull rope (3) passes through the gap between the movable plate (11) and the frame (4). The outer surface of the starting pull rope (3) is fixedly sleeved with a limit block (5).

2. The lawn cleaning machine according to claim 1, characterized in that: The guide assembly includes a bracket (8), which is fixedly installed on the top of the cover of the lawn cleaner body (1). A guide ring (2) is fixedly connected to the top of the bracket (8), and the guide ring (2) is sleeved on the outer surface of the start-up pull rope (3).

3. The lawn cleaning machine according to claim 1, characterized in that: The inner top and inner bottom of the frame (4) are fixedly connected to guide rails (12), and the guide rails (12) are slidably connected to the movable seat (13).

4. A lawn cleaning machine according to claim 1, characterized in that: The top and bottom of the movable plate (11) are fixedly connected with rotating shafts (16), and both rotating shafts (16) are set through the mounting groove (10) and are fixedly connected with the movable seat (13) by a spiral spring (15).

5. A lawn cleaning machine according to claim 2, characterized in that: The limiting block (5) is a trapezoidal frustum, and the larger end of the limiting block (5) is located on one side of the guide ring (2).

6. A lawn cleaning machine according to claim 2, characterized in that: The frame (4) is located between the guide ring (2) and the limiting block (5).