Bicycle shock absorber
By introducing sliding components and valves into the bicycle shock absorber, the shock absorption effect is adjusted using gas, and noise is reduced through buffer pads and sealing rings. This solves the problems of existing bicycle shock absorbers being unable to adjust comfort and having high noise levels, thus improving both comfort and quietness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 佛山市中鑫奥联精密科技有限公司
- Filing Date
- 2025-06-30
- Publication Date
- 2026-05-12
AI Technical Summary
Existing bicycle shock absorbers cannot be adjusted for comfort and have noise issues.
A bicycle shock absorber was designed, which uses compressed air or inert gas to adjust the shock absorption effect by setting a sliding component, valve and sealing cavity in the main body, and reduces noise by using a buffer pad and sealing ring.
It achieves comfort adjustment and noise reduction of bicycle shock absorbers, providing good shock absorption and quiet operation.
Smart Images
Figure CN224229153U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bicycles, and more particularly to a bicycle shock absorber. Background Technology
[0002] Most ordinary bicycles on the market currently use hydraulic oil to achieve shock absorption, but they cannot adjust the comfort level. Utility Model Content
[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a bicycle shock absorber.
[0004] The technical solution of this utility model is as follows: it includes a main body, a fixed structure, a rear plug, a sliding assembly, and a spring. The main body has a mounting cavity extending in a front-to-back direction. The fixed structure is fixed in the mounting cavity. The rear plug is fixed in the mounting cavity and located behind the fixed structure. The rear plug has a connecting hole that allows the mounting cavity located in front of the rear plug to communicate with the outside of the main body. A valve is installed in the connecting hole. The sliding assembly includes a sliding rod and a valve body disposed on the rear end of the sliding rod. The sliding rod is movably mounted on the fixed structure. The valve body is located between the fixed structure and the rear plug, and the valve body and the rear plug enclose a sealing cavity. The spring is located in the mounting cavity and sleeved on the sliding rod. The spring is located between the fixed structure and the valve body.
[0005] Furthermore, the sliding assembly also includes a spring washer fitted over the sliding rod, the spring washer being located between the fixed structure and the valve body, and the two ends of the spring being fitted over the spring washer and the valve body respectively.
[0006] Furthermore, a first buffer pad, fitted over the sliding rod, is provided between the fixing structure and the spring pad.
[0007] Furthermore, there are multiple first buffer pads, which are arranged sequentially in the front-rear direction, and the rear end face of the first buffer pad closest to the spring pad is in surface contact with the front end face of the spring pad.
[0008] Furthermore, the first buffer pad near the fixed structure is an O-ring.
[0009] Furthermore, at least a portion of the outer wall of the spring pad has a gap with the inner wall of the mounting cavity.
[0010] Furthermore,
[0011] The mounting cavity includes a fixed chamber;
[0012] The fixing structure includes a guide, a second buffer pad, and a spacer assembly. The guide, the second buffer pad, and the spacer assembly are arranged sequentially in the front-back direction and located in the fixing chamber. The spacer assembly can press the second buffer pad in the forward direction. The sliding rod passes through the guide, the second buffer pad, and the spacer assembly.
[0013] Furthermore, the sliding rod is fitted with a buffer ring, which is located between the spring pad and the valve body.
[0014] Furthermore, it also includes a rubber sleeve, which is located inside the mounting cavity and is fitted over the slide and the spring.
[0015] Furthermore, several sealing rings are provided between the outer wall of the valve body and the inner wall of the mounting cavity, and between the outer wall of the rear plug and the inner wall of the mounting cavity.
[0016] The bicycle shock absorber according to this utility model has at least the following technical effects:
[0017] 1. A spring is installed between the fixed structure and the valve body, and a sealing cavity is formed between the valve body and the rear plug. The sealing cavity can contain compressed air or inert gas. When the road surface is uneven, the sliding rod can move towards or away from the valve, so that the valve body moves between the gas and the spring. Both the gas and the spring play a role in shock absorption. In addition, since the rear plug is provided with a connecting hole and the connecting hole is provided with a valve, the user can fill the sealing cavity with gas through the valve or release the gas from the sealing cavity to adjust the shock absorption effect and adjust the comfort.
[0018] 2. By setting a first buffer pad between the fixed structure and the spring pad, the first buffer pad can cooperate with the spring to reduce the noise generated when the bicycle shock absorber extends and retracts, so that the bicycle shock absorber has a good noise reduction effect and shock absorption effect.
[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0020] Additional aspects and advantages of this utility model will become apparent and readily understood from the description of the technical solution in conjunction with the following drawings, wherein:
[0021] Figure 1 This is a cross-sectional view of a bicycle shock absorber.
[0022] Figure 2 for Figure 1 Enlarged view of point A in the middle;
[0023] Figure 3 for Figure 2 Enlarged view of point B in the middle.
[0024] Reference numerals: Main body 100, mounting cavity 110, fixing chamber 111, snap-fit part 112, fixing structure 200, guide 210, second buffer pad 220, spacer assembly 230, rear plug 300, connecting hole 310, valve 320, sliding assembly 400, sliding rod 410, valve body 420, sealing ring 421, sealing cavity 430, spring pad 440, first buffer pad 450, buffer ring 460, spring 500, rubber sleeve 600. Detailed Implementation
[0025] The technical solution of this utility model is described in detail below. Examples of the technical solution are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The technical solution described below with reference to the accompanying drawings is exemplary and is only used to explain this utility model, and should not be construed as limiting this utility model.
[0026] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 utility model.
[0027] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.
[0028] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0029] Reference Figure 1 As shown, the bicycle shock absorber provided in the embodiment of this utility model includes a main body 100, a fixing structure 200, a rear plug 300, a sliding assembly 400, and a spring 500. The main body 100 has a mounting cavity 110 extending in the front-rear direction; the fixing structure 200 is fixed in the mounting cavity 110; the rear plug 300 is fixed in the mounting cavity 110 and located behind the fixing structure 200, as shown. Figure 2 As shown, the rear plug 300 has a connecting hole 310, which allows the mounting cavity 110 located in front of the rear plug 300 to communicate with the outside of the main body 100. A valve 320 is installed in the connecting hole 310. Figure 1 As shown, the sliding assembly 400 includes a sliding rod 410 and a valve body 420 disposed on the rear end of the sliding rod 410. The sliding rod 410 is movably mounted on the fixed structure 200, and the valve body 420 is located between the fixed structure 200 and the rear plug 300. Figure 1 , 2 As shown, the valve body 420 and the rear plug 300 enclose a sealing cavity 430; as Figure 1 As shown, the spring 500 is located inside the mounting cavity 110 and sleeved outside the sliding rod 410. The spring 500 is located between the fixed structure 200 and the valve body 420.
[0030] A spring 500 is provided between the fixed structure 200 and the valve body 420. A sealing cavity 430 is formed between the valve body 420 and the rear plug 300. The sealing cavity 430 can contain compressed air or inert gas. When the road surface is uneven, the sliding rod 410 can move towards or away from the valve 320, causing the valve body 420 to move between the gas and the spring 500. Both the gas and the spring 500 play a role in shock absorption. Since the rear plug 300 is provided with a connecting hole 310 and the connecting hole 310 is provided with a valve 320, the user can fill the sealing cavity 430 with gas through the valve 320 or release the gas from the sealing cavity 430 to adjust the shock absorption effect and adjust the comfort.
[0031] Specifically, the inert gas can be nitrogen.
[0032] Specifically, such as Figure 1 As shown, the sliding rod 410 passes through the fixed structure 200. The front end of the sliding rod 410 is located outside the main body 100, and the rear end of the sliding rod 410 is located between the fixed structure 200 and the rear plug 300 and is connected to the valve body 420.
[0033] Specifically, when the bicycle shock absorber is installed on the bicycle, the main body 100 is vertically set and fixed on the bicycle, and the rear plug 300 is located above the valve body 420. When the road surface is uneven, the piston rod moves up and down relative to the main body 100.
[0034] Furthermore, such as Figure 1 As shown, the sliding assembly 400 also includes a spring pad 440 sleeved on the sliding rod 410. The spring pad 440 is located between the fixed structure 200 and the valve body 420. The two ends of the spring 500 are respectively sleeved on the spring pad 440 and the valve body 420.
[0035] The spring 500 is supported by the spring washer 440 and the valve body 420, making the extension and retraction of the spring 500 smoother.
[0036] It is understandable that when the spring pad 440 is fitted over the sliding rod 410, there is a gap between the spring pad 440 and the outer wall of the sliding rod 410, that is, the sliding rod 410 moves back and forth relative to the fixed structure 200 and the spring pad 440.
[0037] Furthermore, such as Figure 1 As shown, a first buffer pad 450 is provided between the fixed structure 200 and the spring pad 440, and is sleeved on the sliding rod 410.
[0038] By providing a first buffer pad 450 between the fixed structure 200 and the spring pad 440, the first buffer pad 450 can cooperate with the spring 500 to reduce the noise generated when the bicycle shock absorber extends and retracts, so that the bicycle shock absorber has a good noise reduction effect and shock absorption effect.
[0039] It is understandable that when the first buffer pad 450 is fitted over the sliding rod 410, there is a gap between the first buffer pad 450 and the outer side wall of the sliding rod 410, that is, the sliding rod 410 moves back and forth relative to the first buffer pad 450.
[0040] Furthermore, such as Figure 1 As shown, there are multiple first buffer pads 450, which are arranged sequentially in the front-to-back direction. The rear end face of the first buffer pad 450 near the spring pad 440 is in surface contact with the front end face of the spring pad 440, thereby increasing the contact area between the first buffer pad 450 and the spring pad 440 and thus achieving a better shock absorption effect.
[0041] Furthermore, such as Figure 1 As shown, the first buffer pad 450 near the fixed structure 200 is an O-ring.
[0042] By adopting the above structure, the shape of the first buffer pad 450 near the fixed structure 200 is different from the shape of the first buffer pad 450 near the spring pad 440, thereby reducing costs and ensuring shock absorption effect.
[0043] Specifically, such as Figure 1 As shown, there are three first cushioning pads 450. The first cushioning pad 450 at the front is an O-ring, and the other two first cushioning pads 450 are soft cushioning pads.
[0044] Furthermore, such as Figure 1 As shown, at least a portion of the outer wall of the spring pad 440 has a gap with the inner wall of the mounting cavity 110, so that the spring pad 440 acts as a guide for the movement of the sliding rod 410.
[0045] Furthermore, such as Figure 1 , 3 As shown,
[0046] The mounting cavity 110 includes a fixed chamber 111;
[0047] The fixed structure 200 includes a guide 210, a second buffer pad 220, and a spacer assembly 230. The guide 210, the second buffer pad 220, and the spacer assembly 230 are arranged sequentially in the front-back direction and located in the fixed chamber 111. The spacer assembly 230 can press the second buffer pad 220 in the forward direction. The sliding rod 410 passes through the guide 210, the second buffer pad 220, and the spacer assembly 230.
[0048] like Figure 1 , 3 As shown, by providing a second buffer pad 220, the force on the spring pad 440 passes through multiple first buffer pads 450, spacer assembly 230 and second buffer pad 220 in sequence. That is, the force of the piston can be buffered by three structures (spring 500, first buffer pad 450 and second buffer pad 220), so that the bicycle shock absorber has a good noise reduction and shock absorption effect.
[0049] Specifically, such as Figure 3 As shown, the spacer assembly 230 is inserted forward into the second buffer pad 220, so that the outer wall of the second buffer pad 220 abuts against the inner wall of the mounting cavity 110, ensuring shock absorption and noise reduction.
[0050] Specifically, such as Figure 1 As shown, the mounting cavity 110 has a snap-fit part 112, which together with the front end of the main body 100 forms a fixed cavity 111.
[0051] Furthermore, such as Figure 1 As shown, a buffer ring 460 is fitted around the sliding rod 410. The buffer ring 460 is located between the spring pad 440 and the valve body 420. With the buffer ring 460 in place, the spring 500 is compressed. When the compression exceeds its limit, the buffer ring 460 prevents the valve body 420 from directly contacting the spring pad 440, thus providing the bicycle shock absorber with good noise reduction and shock absorption. Specifically, the buffer ring 460 is an O-ring.
[0052] Furthermore, such as Figure 1 As shown, it also includes a rubber sleeve 600, which is located inside the mounting cavity 110. The rubber sleeve 600 is fitted over the sliding rod 410 and the spring 500. By providing the rubber sleeve 600, the spring 500 is prevented from directly contacting the inner wall of the mounting cavity 110, so that the bicycle shock absorber has a good noise reduction and shock absorption effect.
[0053] Specifically, the 600 sleeve is a hot melt adhesive sleeve.
[0054] Furthermore, such as Figure 1 As shown, a number of sealing rings 421 are provided between the outer wall of the valve body 420 and the inner wall of the mounting cavity 110, as well as between the outer wall of the rear plug 300 and the inner wall of the mounting cavity 110. Through the number of sealing rings 421, the compressed air or inert gas is ensured to be located in the cavity of the sealing ring 421.
[0055] Specifically, sealing ring 421 is an O-ring.
[0056] Specifically, the air valve is a 5V1 air valve, which is similar to the nozzle of a bicycle tire inflator, thus making it convenient for the user to release the gas in the sealed cavity 430, and allowing the user to inject gas into the sealed cavity 430 using a bicycle air pump.
[0057] Although the technical solutions of this utility model have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these technical solutions without departing from the principles and spirit of this utility model, the scope of which is defined by the claims and their equivalents.
Claims
1. A bicycle shock absorber, characterized in that, include: The main body has a mounting cavity extending in the front-to-back direction; A fixed structure is fixed within the mounting cavity; A rear plug is fixed inside the mounting cavity and located behind the fixing structure. The rear plug has a connecting hole that allows the mounting cavity located in front of the rear plug to communicate with the outside of the main body. A valve is installed in the connecting hole. A sliding assembly includes a sliding rod and a valve body disposed on the rear end of the sliding rod. The sliding rod is movably mounted on the fixed structure. The valve body is located between the fixed structure and the rear plug, and the valve body and the rear plug enclose a sealing cavity. A spring is located inside the mounting cavity and sleeved on the outside of the sliding rod, and the spring is located between the fixed structure and the valve body.
2. The bicycle shock absorber according to claim 1, characterized in that: The sliding assembly also includes a spring washer fitted over the sliding rod. The spring washer is located between the fixed structure and the valve body, and the two ends of the spring are respectively fitted onto the spring washer and the valve body.
3. The bicycle shock absorber according to claim 2, characterized in that: A first buffer pad, fitted over the sliding rod, is provided between the fixing structure and the spring pad.
4. The bicycle shock absorber according to claim 3, characterized in that: There are multiple first buffer pads, which are arranged sequentially in the front-back direction. The rear end face of the first buffer pad closest to the spring pad is in surface contact with the front end face of the spring pad.
5. The bicycle shock absorber according to claim 4, characterized in that: The first buffer pad near the fixed structure is an O-ring.
6. The bicycle shock absorber according to claim 2, characterized in that: At least a portion of the outer wall of the spring pad has a gap with the inner wall of the mounting cavity.
7. The bicycle shock absorber according to claim 2 or 3, characterized in that: The mounting cavity includes a fixed chamber; The fixing structure includes a guide, a second buffer pad, and a spacer assembly. The guide, the second buffer pad, and the spacer assembly are arranged sequentially in the front-back direction and located in the fixing chamber. The spacer assembly can press the second buffer pad in the forward direction. The sliding rod passes through the guide, the second buffer pad, and the spacer assembly.
8. The bicycle shock absorber according to any one of claims 2-6, characterized in that: The sliding rod is fitted with a buffer ring, which is located between the spring pad and the valve body.
9. The bicycle shock absorber according to any one of claims 1-6, characterized in that: It also includes a rubber sleeve, which is located inside the mounting cavity and is fitted over the sliding rod and the spring.
10. The bicycle shock absorber according to claim 1, characterized in that: Several sealing rings are provided between the outer wall of the valve body and the inner wall of the mounting cavity, and between the outer wall of the rear plug and the inner wall of the mounting cavity.