Motorcycle shock absorber with long service life

Abstract

The utility model relates to the technical field of motorcycle shock absorbers, in particular to a motorcycle shock absorber with long service life, and adopts the technical scheme that the motorcycle shock absorber comprises a shock absorber mechanism and a buffer airbag mechanism, and a protective sleeve is arranged on the shock absorber mechanism and is used for protecting the shock absorber mechanism; the buffering air bag mechanism comprises a stop valve and a buffering assembly. The stop valve is provided with a first outer connector and a second outer connector. The buffer assembly comprises a gas cylinder, and a communicating end cover is arranged on the gas cylinder; the stop valve is connected with the shock absorber mechanism through the first outer connector and connected with the communicating end cover through the second outer connector. The shock absorber has the advantages of adapting to different road conditions, reducing damage of parts, blocking outside impurities and prolonging the service cycle, and solves the problems that an existing shock absorber is poor in road condition adaptability, prone to being eroded by impurities and short in service life.

Description

Technical Field

[0001] The utility model relates to the technical field of motorcycle shock absorbers, in particular to a motorcycle shock absorber with a long service life. Background Art

[0002] Motorcycles, as a flexible and convenient means of transportation, are widely used in various scenarios, including urban commuting, rural travel, and outdoor off-roading. Shock absorbers, as key components of motorcycles, primarily function to cushion the impact and vibration transmitted by the road during driving, ensuring riding stability, comfort, and safety.

[0003] However, the service life of existing motorcycle shock absorbers is often limited by various factors. Under different road conditions, the impact forces and vibration frequencies that the shock absorber must withstand vary significantly. Failure to adapt effectively to these variations can easily lead to premature failure of internal components due to excessive wear or fatigue. Furthermore, environmental impurities such as dust, sand, and water can erode the shock absorber's critical structures, further exacerbating component damage and shortening its effective lifespan, making it difficult to meet user expectations for long-term, stable operation.

[0004] Therefore, a motorcycle shock absorber with long service life is proposed to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a motorcycle shock absorber with a long service life, which has the advantages of adapting to different road conditions, reducing component damage, blocking external impurities, and extending the service life, thereby solving the problem that the existing shock absorber has a short service life due to poor adaptability to road conditions and susceptibility to impurity erosion.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a motorcycle shock absorber with a long service life, comprising a shock absorber mechanism and a buffer airbag mechanism, the shock absorber mechanism being provided with a protective cover for protecting the shock absorber mechanism; the buffer airbag mechanism comprising a shut-off valve and a buffer assembly, the shut-off valve being provided with a first external connector and a second external connector; the buffer assembly comprising a gas cylinder, the gas cylinder being provided with a connecting end cover; the shut-off valve being connected to the shock absorber mechanism via the first external connector, and being connected to the connecting end cover via the second external connector.

[0007] Preferably, the shock absorber mechanism includes an outer sleeve, an elastic member and an inner rod; a frame mounting hole is provided at the top of the outer sleeve, a connecting chamber and a buffer chamber are provided inside the outer sleeve, and the connecting chamber and the buffer chamber are interconnected; the top of the inner rod extends into the buffer chamber, and a piston is fixed on the inner rod, and the piston and the inner wall of the buffer chamber are slidably sealed; the elastic member is sleeved on the outside of the inner rod, and the two ends of the elastic member respectively abut the outer sleeve and the piston.

[0008] In the design, the coordinated structure of the outer sleeve, elastic part, inner rod and piston of the shock absorber mechanism realizes the stable operation of the basic shock absorption function. The through-connection design of the connecting chamber and the buffer chamber provides a path for the gas interaction of the buffer airbag mechanism, which has the advantages of compact structure and reliable shock absorption foundation.

[0009] Preferably, a sealing rod is embedded in the inner rod; a through hole for the sealing rod to pass through is opened at the center of the piston, and the sealing rod and the inner wall of the through hole are slidably sealed; the sealing rod is used to control the opening and closing of the gas exhaust channel in the buffer cavity; a wheel mounting hole is provided at the bottom of the inner rod.

[0010] In the design, the sealing rod inside the inner rod cooperates with the sliding seal of the piston through hole to realize the controllable opening and closing of the gas exhaust channel in the buffer chamber. The wheel mounting hole at the bottom of the inner rod is convenient for connection with the wheel, and has the advantages of convenient gas adjustment and good installation adaptability.

[0011] Preferably, the buffer assembly further includes a gas supply nozzle; the gas supply nozzle is installed at the bottom of the gas cylinder, and the gas supply nozzle has a built-in one-way valve, which is used for the one-way flow of external gas into the gas cylinder.

[0012] In the design, the gas filling nozzle of the buffer component and its built-in one-way valve realize the convenient gas filling of the gas cylinder and can prevent the reverse leakage of gas.

[0013] Preferably, the protective sleeve is a corrugated elastic sleeve, and the upper and lower ends of the inner wall of the protective sleeve are fixedly connected to the outer wall of the outer sleeve and the outer wall of the inner rod respectively; the corrugation period of the protective sleeve is adapted to the maximum telescopic stroke of the shock absorber mechanism, and can be stretched or contracted synchronously with the reciprocating motion of the inner rod; the protective sleeve is made of an oil-resistant and aging-resistant composite rubber material; the coverage of the protective sleeve includes the installation area of ​​the elastic part, which is used to prevent mud, sand, water and liquid from contacting the elastic part.

[0014] In the design, the corrugated elastic structure of the protective sleeve and its fixed connection with the outer sleeve and inner rod realize synchronous deformation with the expansion and contraction of the shock absorber mechanism. The oil-resistant and aging-resistant composite rubber material and the coverage of the elastic part installation area realize effective barrier against impurities, and have the advantages of strong protective adaptability and long-lasting protective effect.

[0015] Preferably, the first external connector of the stop valve is sealedly connected to the communicating cavity of the shock absorber mechanism via a threaded connection; the second external connector of the stop valve is sealedly connected to the communicating end cover of the buffer assembly via a quick-connect connector, and the quick-connect connector has a built-in O-ring.

[0016] In the design, the threaded sealing connection between the first external connector of the stop valve and the connecting cavity, and the sealing connection between the second external connector and the quick-connect connector of the connecting end cover realize a reliable sealing connection between the buffer airbag mechanism and the shock absorber mechanism. The built-in O-ring of the quick-connect connector enhances the sealing effect, and has the advantages of stable connection and good sealing performance.

[0017] Preferably, the elastic member is a coil spring; the spring wire diameter and pitch of the coil spring are adapted to the load requirements of the shock absorber mechanism.

[0018] In the design, the coil spring used in the elastic part and its wire diameter and pitch adapted to the load requirements of the shock absorber mechanism achieve stable support for different loads, and have the advantages of good elastic output matching and reliable support.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] The utility model sets up a buffer airbag mechanism, in which the first external joint of the stop valve is connected to the shock absorber mechanism, and the second external joint is connected to the connecting end cover of the buffer assembly. With the help of the on-off control of the stop valve, the gas interaction between the gas cylinder and the shock absorber mechanism can be adjusted, thereby achieving the effect of adapting to different road conditions and reducing component damage caused by mismatch of shock absorption hardness.

[0021] The utility model installs a protective cover on the shock absorber mechanism, which is used to protect the shock absorber mechanism and can prevent external impurities such as dust, mud, water and the like from contacting the shock absorber mechanism, thereby achieving the effect of preventing external impurities from eroding and extending the service life of the shock absorber. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the installation structure of the shock absorber mechanism and the protective cover of the utility model;

[0024] Figure 3 This is a schematic diagram of the cross-sectional installation structure of the shock absorber mechanism and the protective cover of the present utility model;

[0025] Figure 4 This is a schematic diagram of the stop valve structure of the utility model;

[0026] Figure 5 This is a schematic structural diagram of the buffer component of the present utility model.

[0027] In the figure: 1. Protective cover; 2. Shock absorber mechanism; 21. Outer sleeve; 211. Frame mounting hole; 212. Connecting chamber; 213. Buffer chamber; 22. Elastic member; 23. Piston; 24. Inner rod; 241. Sealing rod; 242. Wheel mounting hole; 3. Buffer airbag mechanism; 31. Stop valve; 311. First external connector; 312. Second external connector; 32. Buffer assembly; 321. Gas cylinder; 322. Gas supply nozzle; 323. Connecting end cover. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] Example 1: In order to adapt to different road conditions through the cushioning airbag mechanism, optimize the shock absorption hardness and extend the life of the shock absorber, such as Figures 1 to 5 As shown, the present invention provides an embodiment of a motorcycle shock absorber with a long service life, comprising a protective sleeve 1, a shock absorber mechanism 2, and a buffer airbag mechanism 3. The shock absorber mechanism 2 comprises an outer sleeve 21, an elastic member 22, and an inner rod 24. The outer sleeve 21 is provided with a frame mounting hole 211, a connecting cavity 212, and a buffer cavity 213, which are interconnected. A sealing rod 241 is mounted within the inner rod 24. A piston 23 and a wheel mounting hole 242 are mounted on the inner rod 24. A through hole is provided at the center of the piston 23 for the top of the sealing rod 241 to pass through. Removing the sealing rod 241 allows the gas in the buffer cavity 213 to be discharged.

[0030] The cushioning airbag mechanism 3 consists of a shutoff valve 31 and a cushioning assembly 32. The shutoff valve 31 has a first external connector 311 and a second external connector 312. The cushioning assembly 32 includes a gas cylinder 321, which is equipped with a gas supply nozzle 322 and a connecting end cap 323. The gas supply nozzle 322 has a built-in one-way valve, which allows high-pressure gas to be added to the gas cylinder 321 through an external inflation device while preventing reverse leakage.

[0031] When the motorcycle is traveling on bumpy roads, the shock absorber is compressed by the impact, and the inner rod 24 drives the piston 23 to move downward in the buffer chamber 213, squeezing the gas in the chamber, and part of the gas enters the buffer airbag mechanism 3 through the connecting chamber 212.

[0032] At this point, if the shut-off valve 31 is opened, the first external connector 311 is connected to the second external connector 312, and the gas cylinder 321 of the buffer assembly 32 forms a gas exchange passage through the connecting end cap 323, the shut-off valve 31, and the connecting cavity 212 of the shock absorber mechanism 2. The gas in the gas cylinder 321 is compressed or expanded due to the pressure change, assisting the elastic member 22 in buffering the impact, reducing the hard collision of the shock absorber and achieving a softer shock absorption.

[0033] When driving on smooth roads, shutoff valve 31 is closed, cutting off the airflow between the airbag mechanism 3 and the shock absorber mechanism 2. The spring element 22 is then the primary damping force, resulting in a relatively stiffer damping system. By controlling the opening and closing of shutoff valve 31, the damping hardness required for different road conditions can be adjusted, reducing wear on the shock absorber due to a mismatch in hardness and softness, thereby extending its service life.

[0034] Example 2: In order to protect the shock absorber mechanism by using a protective cover and extend the life of the shock absorber, Figures 1 to 3 As shown, in this embodiment, the protective sleeve 1 is mounted on the shock absorber mechanism 2. The protective sleeve 1 is a corrugated elastic sleeve made of an oil-resistant and aging-resistant composite rubber material. The upper and lower ends of its inner wall are fixedly connected to the outer wall of the outer sleeve 21 and the outer wall of the inner rod 24, respectively. The corrugation period is adapted to the maximum telescopic stroke of the shock absorber mechanism 2, and it can expand or contract synchronously with the reciprocating motion of the inner rod 24.

[0035] While the motorcycle is in motion, dust, sand, rainwater, and other impurities are blocked by the protective cover 1 and prevented from directly contacting key components of the shock absorber mechanism 2, such as the outer sleeve 21 and elastic member 22. When the shock absorber expands or contracts under impact, the corrugated structure of the protective cover 1 adapts to stretch or compress, always enveloping the shock absorber mechanism 2.

[0036] For example, during off-road riding, dust and sand particles kicked up by the road are blocked by the protective cover 1, preventing them from entering the shock absorber's interior and wearing out the seals and elastic member 22. During rainy driving, the protective cover 1 prevents rainwater from eroding the metal components of the shock absorber mechanism 2, slowing down the onset of rust. By continuously isolating external impurities from the protective cover 1, the risk of failure of the shock absorber mechanism 2 due to contamination, rust, and wear is reduced, thereby extending the overall service life of the shock absorber.

[0037] Furthermore, the protective cover 1 covers the area where the elastic member 22 is mounted, effectively preventing contact between the elastic member 22 and mud, sand, and water, thereby preventing elastic degradation or breakage caused by long-term exposure to harsh environments. This design not only extends the service life of the elastic member 22 but also reduces maintenance costs associated with component damage, meeting user requirements for long-term, stable operation of the shock absorber.

[0038] When the present invention is used, the shock absorber mechanism 2 is first fixed to the motorcycle frame through the frame mounting hole 211 at the top of the outer sleeve 21, and then the wheel is connected through the wheel mounting hole 242 at the bottom of the inner rod 24 to complete the overall installation.

[0039] If the hardness of the shock absorption needs to be adjusted according to the road conditions, the stop valve 31 of the buffer airbag mechanism 3 can be operated: when driving on bumpy roads, open the stop valve 31 to connect the first external connector 311 with the second external connector 312. At this time, the gas cylinder 321 forms a gas exchange passage through the connecting end cover 323, the stop valve 31 and the connecting chamber 212. The gas in the gas cylinder 321 participates in the buffering as the pressure in the buffer chamber 213 changes, thereby achieving softer shock absorption; when switching to smooth road conditions, close the stop valve 31, cut off the gas exchange, and rely only on the elastic part 22 for shock absorption, making the shock absorption relatively harder.

[0040] When the air pressure in the gas cylinder 321 is insufficient, gas can be added through the gas filling nozzle 322. During the filling process, the one-way valve prevents gas from leaking back, ensuring stable air pressure. If the gas in the buffer chamber 213 needs to be quickly released, the sealing rod 241 inside the inner rod 24 can be pulled to discharge the gas through the through hole at the center of the piston 23, flexibly adjusting the buffering force.

[0041] During driving, the protective cover 1 will deform synchronously with the expansion and contraction of the shock absorber mechanism 2, always covering the outer sleeve 21 and elastic member 22 and other components, and preventing external impurities from corroding. If inspection or maintenance is required, the protective cover 1 can be removed by simply disconnecting it from the outer sleeve 21 and inner rod 24, which is convenient to operate.

[0042] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A motorcycle shock absorber with a long service life, comprising a shock absorber mechanism (2) and a buffer airbag mechanism (3), characterized in that: The shock absorber mechanism (2) is provided with a protective sleeve (1), which is used to protect the shock absorber mechanism (2); the buffer airbag mechanism (3) comprises a stop valve (31) and a buffer assembly (32); the stop valve (31) is provided with a first external joint (311) and a second external joint (312); the buffer assembly (32) comprises a gas cylinder (321), and the gas cylinder (321) is provided with a communication end cap (323); the stop valve (31) is connected to the shock absorber mechanism (2) via the first external joint (311), and is connected to the communication end cap (323) via the second external joint (312).

2. A motorcycle shock absorber with a long service life according to claim 1, characterized in that: The shock absorber mechanism (2) comprises an outer sleeve (21), an elastic member (22) and an inner rod (24); a frame mounting hole (211) is provided at the top of the outer sleeve (21), a connecting cavity (212) and a buffer cavity (213) are provided in the outer sleeve (21), and the connecting cavity (212) and the buffer cavity (213) are interconnected; the top of the inner rod (24) extends into the buffer cavity (213), and a piston (23) is fixed on the inner rod (24), and the piston (23) and the inner wall of the buffer cavity (213) are slidably sealed; the elastic member (22) is sleeved on the outside of the inner rod (24), and two ends of the elastic member (22) respectively abut against the outer sleeve (21) and the piston (23).

3. The motorcycle shock absorber with a long service life according to claim 2, characterized in that: A sealing rod (241) is embedded in the inner rod (24); a through hole for the sealing rod (241) to pass through is opened at the center of the piston (23), and the sealing rod (241) is in sliding and sealing cooperation with the inner wall of the through hole; the sealing rod (241) is used to control the opening and closing of the gas discharge channel in the buffer chamber (213); and a wheel mounting hole (242) is provided at the bottom of the inner rod (24).

4. The motorcycle shock absorber with a long service life according to claim 1, characterized in that: The buffer assembly (32) further comprises a gas supply nozzle (322); the gas supply nozzle (322) is mounted on the bottom of the gas cylinder (321), and the gas supply nozzle (322) has a built-in one-way valve, which is used for one-way flow of external gas into the gas cylinder (321).

5. The motorcycle shock absorber with a long service life according to claim 1, characterized in that: The protective sleeve (1) is a corrugated elastic sleeve, and the upper and lower ends of the inner wall of the protective sleeve (1) are fixedly connected to the outer wall of the outer sleeve (21) and the outer wall of the inner rod (24) respectively; the corrugation period of the protective sleeve (1) is adapted to the maximum telescopic stroke of the shock absorber mechanism (2), and can be stretched or contracted synchronously with the reciprocating motion of the inner rod (24); the protective sleeve (1) is made of an oil-resistant and aging-resistant composite rubber material; the coverage of the protective sleeve (1) includes the installation area of ​​the elastic member (22), and is used to prevent mud, sand, water and the elastic member (22) from contacting.

6. The motorcycle shock absorber with a long service life according to claim 1, characterized in that: The first external connector (311) of the stop valve (31) is sealedly connected to the communication cavity (212) of the shock absorber mechanism (2) via a threaded connection; the second external connector (312) of the stop valve (31) is sealedly connected to the communication end cover (323) of the buffer assembly (32) via a quick-connect connector, and the quick-connect connector has an internal O-ring.

7. The motorcycle shock absorber with a long service life according to claim 2, characterized in that: The elastic member (22) is a coil spring; the spring wire diameter and pitch of the coil spring are adapted to the load requirement of the shock absorber mechanism (2).

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