Anti-loosening structure for screws of mower
By incorporating reinforcement, anti-loosening, and shock-absorbing mechanisms into the lawnmower screws, the problem of screws loosening under vibration and impact is solved, thus achieving stability of the screw connection and reliability of the lawnmower.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-13
- Publication Date
- 2026-03-06
AI Technical Summary
The screws on existing lawnmowers are prone to loosening under vibration and impact, leading to component misalignment, reduced mowing quality, and safety hazards.
The system employs a reinforcement mechanism, an anti-loosening mechanism, and a shock-absorbing mechanism, including a fastening seat, a fastening sleeve, a limiting plate, a torque assembly, an anti-slip pad, a shock-absorbing ring, a shock absorber, and a damping ring, etc., to prevent the screws from loosening through fastening, limiting, and multi-stage shock absorption.
It effectively prevents screws from loosening, improves the stability and safety of the lawnmower during operation, and ensures the accuracy of component positioning and the quality of mowing.
Smart Images
Figure CN223975398U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of lawnmower technology, and in particular to a lawnmower screw anti-loosening structure. Background Technology
[0002] With the rapid development of modern agriculture and landscape maintenance, lawnmowers are being used more and more widely. During operation, lawnmowers generate continuous and strong vibrations due to the high-speed operation of the engine and the collision between the cutting blades and grass and debris on the ground. In the existing structure of lawnmowers, the various parts are mostly connected and fixed by screws.
[0003] However, existing screw anti-loosening measures are not ideal. Under the long-term vibration and impact generated by the lawnmower during operation, the screws are very prone to loosening. Once the screws loosen, not only will the position of the relevant parts of the lawnmower be shifted, affecting the normal working performance and mowing quality of the lawnmower, but it may also cause parts to fall off, causing safety accidents and threatening the personal safety of the operators. Utility Model Content
[0004] In view of the above problems, this application provides a lawnmower screw anti-loosening structure to solve the problem that the existing screw anti-loosening measures are not ideal. Under the long-term vibration and impact generated by the lawnmower during operation, the screws are very easy to loosen. Once the screws loosen, not only will the position of the relevant parts of the lawnmower be displaced, affecting the normal working performance and mowing quality of the lawnmower, but it may also cause the parts to fall off, causing safety accidents and threatening the personal safety of the operators.
[0005] This application provides a lawnmower screw anti-loosening structure. The lawnmower screw anti-loosening structure includes a screw body, a reinforcing mechanism on the outer surface of the screw body, an anti-loosening mechanism below the reinforcing mechanism, and a shock-absorbing mechanism mounted on the anti-loosening mechanism.
[0006] In some embodiments, the reinforcement mechanism includes a fastening seat sleeved on the outer surface of the screw body, fastening sleeves fixedly installed on the upper and lower surfaces of the fastening seat, an mounting plate fixedly installed on the outer wall surface of the fastening sleeve, and a limit plate fixedly installed on the top surface of the mounting plate.
[0007] In some embodiments, a torque component is fixedly connected to the inner surface of the limiting plate, a connecting block is movably mounted on the outer surface of the torque component, a clamping plate is fixedly mounted on one end of the connecting block, and an anti-slip pad is fixedly mounted on the inner surface of the clamping plate.
[0008] In some embodiments, the anti-loosening mechanism includes a device base sleeved on the outer surface of the screw body, a fastening ring fixedly mounted on the lower surface of the device base, and the inner wall surface of the fastening ring being threadedly connected to the outer surface of the screw body.
[0009] In some embodiments, a reinforcing base is fixedly installed on the outer surface of the device base, and a positioning screw is threadedly connected to the internal thread of the reinforcing base, with one end of the positioning screw being threadedly connected to the internal thread of the device base.
[0010] In some embodiments, the shock absorption mechanism includes a shock absorption ring fixedly mounted on the upper surface of the device base, wherein a shock absorber is fixedly connected to one end surface of the shock absorption ring.
[0011] In some embodiments, a damping spring damper two is fixedly connected to one end of the damper one, a damping ring is fixedly installed on the inner surface of the damping spring damper two, and a damping damping plate is fixedly installed on the inner wall surface of the damping ring.
[0012] The above solution, through the tight fitting of the fastening seat and the screw body, combined with the fastening sleeve, enhances the vertical stability of the structure and enables it to withstand larger axial loads. The mounting plate facilitates connection with other components of the lawnmower, achieving overall integration. The limiting plate restricts the horizontal displacement of components, ensuring the relative positional accuracy of each component. The torque assembly, in conjunction with the connecting block, clamping plate, and anti-slip pad, generates a reverse torque when the screw tends to loosen under external force, causing the clamping plate to hold the screw tightly, and the anti-slip pad increases friction, effectively preventing the screw from rotating and loosening. Through the coordinated work of the damping ring, damper one, damping spring, damper two, damping ring, and damping damping plate, multi-stage vibration damping is achieved. From the initial buffering by the rubber damping ring, to the energy dissipation by the hydraulic damper, to the elastic buffering by the damping spring, and the absorption of vibration by the polymer damping material and the rubber-metal composite damping damping plate, the impact of lawnmower operating vibration on the screw is greatly reduced, preventing the screw from loosening due to vibration.
[0013] The above description is merely an overview of the technical solutions of the embodiments of this application. In order to better understand the technical means of the embodiments of this application and to implement them in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the embodiments of this application more obvious and understandable, specific implementation methods of this application are described below. Attached Figure Description
[0014] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a perspective view of the screw body in some embodiments of this application.
[0016] Figure 2 This is a three-dimensional schematic diagram of the structural reinforcement mechanism in some embodiments of this application.
[0017] Figure 3 This is a three-dimensional schematic diagram of the anti-loosening mechanism in some embodiments of this application.
[0018] Figure 4 This is a cross-sectional schematic diagram of the structural damping mechanism in some embodiments of this application.
[0019] Explanation of reference numerals in the attached figures:
[0020] 1. Screw body; 2. Reinforcing mechanism; 21. Fastening seat; 22. Fastening sleeve; 23. Mounting plate; 24. Limiting plate; 25. Torque assembly; 26. Connecting block; 27. Clamping plate; 28. Anti-slip pad; 3. Anti-loosening mechanism; 31. Device base; 32. Fastening ring; 33. Reinforcing seat; 34. Positioning screw; 4. Vibration damping mechanism; 41. Vibration damping ring; 42. Vibration damper one; 43. Damping spring; 44. Vibration damper two; 45. Damping ring; 46. Damping damping pad. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0022] The terms "comprising" and "having," and any variations thereof, in the specification, claims, and drawings of this application are intended to cover without excluding other meanings. The words "a" or "an" do not exclude the presence of multiples. Unless otherwise stated, "multiple" means two or more, including two; similarly, "multiple sets" means two or more, including two sets.
[0023] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this application. For example, in the description of this application, terms such as "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0024] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, "connection" or "linkage" in mechanical structures can refer to a physical connection, such as a fixed connection, a detachable connection, or an integral connection. In addition to referring to a physical connection, "connection" or "linkage" in circuit structures can also refer to an electrical connection or a signal connection. For example, it can be a direct connection, i.e., a physical connection, or an indirect connection through at least one intermediate component, as long as the circuit is connected. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0025] To facilitate understanding of the technical solutions in the embodiments of this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.
[0026] This application provides a structure to prevent lawnmower screws from loosening. Figure 1 This is a perspective view of the screw body in some embodiments of this application. Figure 2 This is a perspective view of the reinforcement mechanism in some embodiments of this application. For example... Figure 1 , Figure 2 As shown, the lawnmower screw anti-loosening structure includes a screw body 1, a reinforcing mechanism 2 on the outer surface of the screw body 1, an anti-loosening mechanism 3 below the reinforcing mechanism 2, and a shock-absorbing mechanism 4 installed on the anti-loosening mechanism 3. The reinforcing mechanism 2 includes a fastening seat 21 sleeved on the outer surface of the screw body 1, a fastening sleeve 22 fixedly installed on the upper and lower surfaces of the fastening seat 21, an mounting plate 23 fixedly installed on the outer wall surface of the fastening sleeve 22, a limiting plate 24 fixedly installed on the top surface of the mounting plate 23, a torque component 25 fixedly connected to the inner surface of the limiting plate 24, a connecting block 26 movably installed on the outer surface of the torque component 25, a clamping piece 27 fixedly installed at one end of the connecting block 26, and an anti-slip pad 28 fixedly installed on the inner surface of the clamping piece 27.
[0027] In the technical solution of this application embodiment, the interference fit between the fastening seat 21 and the screw body 1, as well as the reinforcing effect of the fastening sleeve 22, provides a basic fastening foundation to resist axial and radial forces. When the screw body 1 tends to rotate, the elastic torsion bar of the torque assembly 25 generates a reverse torque force. This torque force is transmitted to the clamping plate 27 through the connecting block 26, causing the clamping plate 27 to clamp towards the screw body 1. The anti-slip pad 28 on the inner side of the clamping plate 27 is in close contact with the outer surface of the screw body 1, using its high friction to further prevent the screw body 1 from rotating and loosening. The limiting plate 24 restricts the displacement of related components in the horizontal direction, ensuring the relative position stability between the fastening mechanism and other components, indirectly contributing to the fastening of the screw. 。
[0028] According to other embodiments of this application, such as Figure 3 As shown, the anti-loosening mechanism 3 includes a device base 31 sleeved on the outer surface of the screw body 1. A fastening ring 32 is fixedly installed on the lower surface of the device base 31. The inner wall surface of the fastening ring 32 is threadedly connected to the outer surface of the screw body 1. A reinforcing seat 33 is fixedly installed on the outer surface of the device base 31. A positioning screw 34 is threadedly connected to the inside of the reinforcing seat 33. One end of the positioning screw 34 is threadedly connected to the inside of the device base 31.
[0029] In this embodiment, the device base 31 is a hollow cylindrical structure with an inner diameter slightly larger than the outer diameter of the screw body 1, allowing it to easily fit onto the outer surface of the screw body 1. During installation, the device base 31 is inserted from one end of the screw body 1, positioning it below the reinforcing mechanism 2. By rotating the device base 31, the fastening ring 32 is threadedly connected to the screw body 1, thereby firmly fixing the anti-loosening mechanism 3 onto the screw body 1. The reinforcing seat 33 is a block structure with threaded holes machined inside for installing the positioning screw 34. One end of the positioning screw 34 is threadedly connected to the threaded hole of the reinforcing seat 33, and the other end passes through the reinforcing seat 33 and is threadedly connected to the inside of the device base 31. By tightening the positioning screw 34, the connection strength between the device base 31 and the screw body 1 can be further enhanced, effectively preventing the screw from loosening.
[0030] According to other embodiments of this application, such as Figure 4 As shown, the damping mechanism 4 includes a 41 fixedly installed on the upper surface of the device base 31. A damping ring 42 is fixedly installed on the inner surface of the 41. A damper 43 is fixedly connected to one end of the damping ring 42. A damping spring damper 44 is fixedly connected to one end of the damper 43. A damping ring 45 is fixedly installed on the inner surface of the damping spring damper 44. A damping damping pad 46 is fixedly installed on the inner wall surface of the damping ring 45.
[0031] In this embodiment, when the lawnmower vibrates during operation, the vibration is first transmitted to the damping ring 45 and the damping damping pad 46. The damping ring 45 and the damping damping pad 46 perform initial damping through their own elastic deformation. Then, the vibration is transmitted to the second damper 44, where some of the vibration energy is consumed. After being buffered and absorbed by the damping spring 43, the vibration is then transmitted to the first damper 42 for further damping. Finally, the remaining vibration energy is absorbed and consumed by the damping ring 41, thereby greatly reducing the impact of vibration on the screws, effectively preventing the screws from loosening due to vibration, and improving the stability and reliability of the screw connection when the lawnmower is working.
[0032] Those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of this application and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.
[0033] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.
Claims
1. A mower screw anti-loosening structure, characterized in that, Including screw body (1), the outer surface of screw body (1) is provided with reinforcing mechanism (2), the lower part of reinforcing mechanism (2) is provided with anti-loosening mechanism (3), anti-loosening mechanism (3) is installed with damping mechanism (4).
2. The mower screw anti-loosening structure according to claim 1, characterized in that, The reinforcing mechanism (2) includes a fastening seat (21) sleeved on the outer surface of the screw body (1), the upper and lower surfaces of the fastening seat (21) are fixedly installed with a fastening sleeve (22), the outer wall surface of the fastening sleeve (22) is fixedly installed with a mounting plate (23), and the top surface of the mounting plate (23) is fixedly installed with a limiting plate (24).
3. The mower screw anti-loosening structure according to claim 2, characterized in that, The inner side surface of the limiting plate (24) is fixedly connected with a torque assembly (25), the outer surface of the torque assembly (25) is movably installed with a connecting block (26), one end of the connecting block (26) is fixedly installed with a clamping piece (27), and the inner side surface of the clamping piece (27) is fixedly installed with an anti-skid pad (28).
4. The mower screw anti-loosening structure according to claim 1, characterized in that, The anti-loosening mechanism (3) includes a device base (31) sleeved on the outer surface of the screw body (1), the lower surface of the device base (31) is fixedly installed with a fastening ring (32), and the inner wall surface of the fastening ring (32) is threadedly connected with the outer surface of the screw body (1).
5. The mower screw anti-loosening structure according to claim 4, characterized in that, The outer side surface of the device base (31) is fixedly installed with a reinforcing seat (33), the inside of the reinforcing seat (33) is threadedly connected with a positioning screw rod (34), and one end of the positioning screw rod (34) is threadedly connected with the inside of the device base (31).
6. The mower screw anti-loosening structure according to claim 4, characterized in that, The damping mechanism (4) includes a (41) fixedly installed on the upper surface of the device base (31), the inner surface of the (41) is fixedly installed with a damping ring (42), and one end surface of the damping ring (42) is fixedly connected with a shock absorber one (43).
7. The mower screw anti-loosening structure according to claim 6, characterized in that, One end of the shock absorber one (43) is fixedly connected with a damping spring shock absorber two (44), the inner surface of the damping spring shock absorber two (44) is fixedly installed with a damping ring (45), and the inner wall surface of the damping ring (45) is fixedly installed with a damping damping piece (46).