Motorcycle shock absorber oil seal oil leakage prevention structure
By using a combination of highly elastic fluororubber, nanofibers, and polytetrafluoroethylene materials in the oil seal of the motorcycle shock absorber, along with an adjustment mechanism, the problem of unstable sealing effect was solved, resulting in improved sealing performance and extended service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANGZHOU DAHUA SHOCK ABSORBING TECHNOLOGY CO LTD
- Filing Date
- 2025-09-03
- Publication Date
- 2026-06-26
AI Technical Summary
Existing motorcycle shock absorber oil seals have unstable sealing performance under complex road conditions and frequent shock absorber movement, leading to oil leakage and affecting the normal operation and service life of the shock absorber.
A leak-proof oil seal structure for motorcycle shock absorbers was designed, which uses an elastic layer of high-elasticity fluororubber, an anti-deformation layer of nanofiber, and a wear-resistant layer of polytetrafluoroethylene. Combined with an adjustment mechanism, including a fixed box, clamp, adjustment ring, rotating rod, and inner cross groove plate, the structure achieves self-adaptive clamping and shape stability of the sealing gasket.
It improves sealing performance, reduces oil leakage, extends the service life of oil seals, and reduces maintenance costs.
Smart Images
Figure CN224414222U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of motorcycle shock absorber oil seal technology, specifically a motorcycle shock absorber oil seal anti-leakage structure. Background Technology
[0002] During motorcycle use, the shock absorber plays a crucial role in cushioning the ride, effectively improving riding comfort and stability. The shock absorber oil seal, as a vital component preventing internal oil leakage, directly impacts the normal operation and lifespan of the shock absorber.
[0003] Currently, the existing oil seal anti-leakage structure for motorcycle shock absorbers has some problems that urgently need to be solved in practical applications. When faced with complex road conditions and frequent shock absorber extension and contraction during motorcycle operation, the existing oil seal structure does not have a stable sealing effect. When the shock absorber is subjected to a large impact force or after long-term operation, the sealing gasket on the inner side of the oil seal body is prone to loosening or deformation, resulting in oil leakage inside the shock absorber, which in turn affects the shock absorption effect of the shock absorber. Therefore, it needs to be improved. Utility Model Content
[0004] The purpose of this utility model is to provide a leak-proof oil seal structure for motorcycle shock absorbers, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a motorcycle shock absorber oil seal anti-leakage structure, including an oil seal body, a sealing gasket fixedly connected to the inner side of the oil seal body, and an adjustment mechanism provided on the inner side of the oil seal body;
[0006] The adjusting mechanism includes a fixed box, which is located inside the oil seal body. A clamp is fixedly connected to the right side of the fixed box, and an adjusting ring is fixedly connected to the left side of the clamp. An adjusting rod is engaged inside the adjusting ring, and a rotating rod is fixedly connected to the inside of the adjusting rod. An inner cross groove plate is fixedly connected to the left side of the rotating rod, and a limit block is fixedly connected to the top of the fixed box.
[0007] Preferably, the inner side of the oil seal body is provided with a groove corresponding to the movement trajectory of the limiting block, and the limiting block is slidably connected inside the groove. Through the groove, the limiting block can slide into the inner side of the oil seal body, thereby limiting the fixed box and making the fixed box more stable when the rotating rod rotates.
[0008] Preferably, the inner side of the adjusting ring is provided with a fixing groove corresponding to the engagement position of the adjusting rod. Through the fixing groove, the outer connecting teeth of the adjusting rod can be inserted into the inner side of the adjusting ring. When the adjusting rod rotates, it can drive the adjusting ring to move, which in turn drives the clamp to move, so that the clamp and the adjusting ring can squeeze the sealing gasket.
[0009] Preferably, the fixed box and the inner side of the oil seal body are provided with a rotating hole corresponding to the position of the rotating rod, and the rotating rod is rotatably connected to the inner side of the rotating hole. Through the rotating hole, the rotating rod can rotate inside the fixed box and the oil seal body.
[0010] Preferably, the oil seal body includes an elastic layer, an anti-deformation layer is fixedly connected to the outside of the elastic layer, and a wear-resistant layer is fixedly connected to the outside of the anti-deformation layer.
[0011] Preferably, the elastic layer is the innermost layer, and the elastic layer is made of highly elastic fluororubber material. The elastic layer makes the oil seal body more flexible and has better sealing performance. The anti-deformation layer is made of nanofiber material, which enhances the anti-deformation ability of the oil seal body.
[0012] Preferably, the wear-resistant layer is the outermost layer, made of polytetrafluoroethylene material. The wear-resistant layer reduces friction between the seal and the shaft, thus reducing wear.
[0013] Compared with the prior art, this utility model provides a motorcycle shock absorber oil seal anti-leakage structure, which has the following beneficial effects:
[0014] 1. The oil seal anti-leakage structure of the motorcycle shock absorber has an adjustment mechanism in which the rotating rod and the adjusting rod are driven by rotating the inner cross groove plate, so that the adjusting ring can move along the inner side of the oil seal body. With the help of the clamp, the sealing gasket on the inner side of the oil seal body is self-adaptively tightened, so that the sealing gasket can fit against the outer wall of the shock absorber, making the shock absorber less prone to oil leakage.
[0015] 2. The oil seal of this motorcycle shock absorber features an oil leakage prevention structure. The elastic layer is made of highly elastic fluororubber, giving the oil seal excellent flexibility and resilience. It can maintain sealing performance during frequent shock absorber extension and contraction movements and is not easily damaged by deformation. The anti-deformation layer uses nanofiber material, which effectively limits excessive deformation of the elastic layer and maintains the stability of the oil seal shape. The outermost polytetrafluoroethylene wear-resistant layer has excellent wear resistance, which can resist the friction and wear generated during shock absorber operation, significantly extending the service life of the oil seal and reducing maintenance costs. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the 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.
[0017] Figure 1 This is a schematic diagram of the front structure of this utility model;
[0018] Figure 2This is a schematic diagram of the adjustment mechanism.
[0019] Figure 3 A schematic diagram of the structure of the inner cross-groove plate, rotating rod, and adjusting rod;
[0020] Figure 4 This is a schematic diagram of the material structure of the oil seal body.
[0021] In the diagram: 1. Oil seal body; 2. Sealing gasket; 3. Adjustment mechanism; 31. Adjustment ring; 32. Rotating rod; 33. Limiting block; 34. Fixing box; 35. Clamp; 36. Inner cross groove plate; 37. Adjustment rod; 4. Elastic layer; 5. Deformation-resistant layer; 6. Wear-resistant layer. Detailed Implementation
[0022] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0024] This utility model provides the following technical solution:
[0025] Example 1
[0026] Please see Figure 1-4 This utility model provides a technical solution: a motorcycle shock absorber oil seal anti-leakage structure, including an oil seal body 1, a sealing gasket 2 fixedly connected to the inner side of the oil seal body 1, and an adjustment mechanism 3 provided on the inner side of the oil seal body 1.
[0027] The adjusting mechanism 3 includes a fixed box 34, which is located inside the oil seal body 1. A clamp 35 is fixedly connected to the right side of the fixed box 34, and an adjusting ring 31 is fixedly connected to the left side of the clamp 35. An adjusting rod 37 is engaged inside the adjusting ring 31, and a rotating rod 32 is fixedly connected to the inside of the adjusting rod 37. An inner cross groove plate 36 is fixedly connected to the left side of the rotating rod 32, and a limit block 33 is fixedly connected to the top of the fixed box 34.
[0028] Furthermore, the inner side of the oil seal body 1 is provided with a groove corresponding to the movement trajectory of the limiting block 33, and the limiting block 33 is slidably connected inside the groove. Through the groove, the limiting block 33 can slide into the inner side of the oil seal body 1, which plays a limiting role on the fixed box 34, making the fixed box 34 more stable when the rotating rod 32 rotates.
[0029] Furthermore, a fixing groove corresponding to the engagement position of the adjusting rod 37 is provided on the inner side of the adjusting ring 31. Through the fixing groove, the outer connecting teeth of the adjusting rod 37 can be inserted into the inner side of the adjusting ring 31. When the adjusting rod 37 rotates, it can drive the adjusting ring 31 to move, so that the adjusting ring 31 drives the clamp 35 to move, so that the clamp 35 and the adjusting ring 31 can squeeze the sealing gasket 2.
[0030] Furthermore, the fixed box 34 and the oil seal body 1 have a rotating hole corresponding to the position of the rotating rod 32 on their inner sides, and the rotating rod 32 is rotatably connected to the inner side of the rotating hole. Through the rotating hole, the rotating rod 32 can rotate inside the fixed box 34 and the oil seal body 1.
[0031] Example 2
[0032] Please see Figure 1-4 Furthermore, based on Example 1, the oil seal body 1 includes an elastic layer 4, an anti-deformation layer 5 is fixedly connected to the outside of the elastic layer 4, and a wear-resistant layer 6 is fixedly connected to the outside of the anti-deformation layer 5.
[0033] Furthermore, the elastic layer 4 is the innermost layer, and the elastic layer 4 is made of highly elastic fluororubber material. The elastic layer 4 makes the oil seal body 1 more flexible and has better sealing performance. The anti-deformation layer 5 is made of nanofiber material, which enhances the anti-deformation ability of the oil seal body 1.
[0034] Furthermore, the wear-resistant layer 6 is the outermost layer, made of polytetrafluoroethylene material. The wear-resistant layer 6 reduces the friction between the seal and the shaft, thus reducing wear.
[0035] In actual operation, when this device is used, if the motorcycle shock absorber oil seal body 1 leaks oil, after disassembling the oil seal body 1, use a Phillips screwdriver to rotate the inner Phillips groove plate 36, so that the inner Phillips groove plate 36 drives the rotating rod 32 to rotate, so that the rotating rod 32 drives the adjusting rod 37 to rotate, so that the adjusting rod 37 can drive the adjusting ring 31 to move, so that the adjusting ring 31 can move inside the oil seal body 1, so that the adjusting ring 31 and the clamp 35 can clamp the sealing gasket 2, so that the loosened sealing gasket 2 can be put into contact with the outside of the shock absorber again, so that the shock absorber oil inside the shock absorber is not easy to overflow.
[0036] The elastic layer 4 is made of highly elastic fluororubber material, which gives the oil seal good flexibility and resilience. It can maintain sealing performance during frequent shock absorber extension and contraction movements and is not easily damaged by deformation. The anti-deformation layer 5 uses nanofiber material to effectively limit excessive deformation of the elastic layer 4 and maintain the stability of the oil seal shape. The outermost polytetrafluoroethylene wear-resistant layer 6 has excellent wear resistance and can resist the friction and wear generated during shock absorber operation, significantly extending the service life of the oil seal and reducing maintenance costs.
[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
Claims
1. A motorcycle shock absorber oil seal anti-leakage structure, comprising an oil seal body (1), characterized in that: A sealing gasket (2) is fixedly connected to the inner side of the oil seal body (1), and an adjustment mechanism (3) is provided on the inner side of the oil seal body (1); The adjusting mechanism (3) includes a fixed box (34), which is located inside the oil seal body (1). A clamp (35) is fixedly connected to the right side of the fixed box (34), and an adjusting ring (31) is fixedly connected to the left side of the clamp (35). An adjusting rod (37) is engaged inside the adjusting ring (31), and a rotating rod (32) is fixedly connected to the inside of the adjusting rod (37). An inner cross groove plate (36) is fixedly connected to the left side of the rotating rod (32), and a limit block (33) is fixedly connected to the top of the fixed box (34).
2. The oil seal anti-leakage structure for a motorcycle shock absorber according to claim 1, characterized in that: The inner side of the oil seal body (1) is provided with a groove corresponding to the movement trajectory of the limiting block (33), and the limiting block (33) is slidably connected inside the groove.
3. The oil seal anti-leakage structure for a motorcycle shock absorber according to claim 1, characterized in that: The inner side of the adjusting ring (31) is provided with a fixing groove corresponding to the engagement position of the adjusting rod (37).
4. The oil seal anti-leakage structure for a motorcycle shock absorber according to claim 1, characterized in that: The fixed box (34) and the oil seal body (1) have a rotating hole on the inner side corresponding to the position of the rotating rod (32), and the rotating rod (32) is rotatably connected to the inner side of the rotating hole.
5. The oil seal anti-leakage structure for a motorcycle shock absorber according to claim 1, characterized in that: The oil seal body (1) includes an elastic layer (4), an anti-deformation layer (5) is fixedly connected to the outside of the elastic layer (4), and a wear-resistant layer (6) is fixedly connected to the outside of the anti-deformation layer (5).
6. The oil seal anti-leakage structure for a motorcycle shock absorber according to claim 5, characterized in that: The elastic layer (4) is the innermost layer, and the elastic layer (4) is made of highly elastic fluororubber material, while the deformation-resistant layer (5) is made of nanofiber material.
7. The oil seal anti-leakage structure for a motorcycle shock absorber according to claim 5, characterized in that: The wear-resistant layer (6) is the outermost layer and is made of polytetrafluoroethylene.