Gas tank angle adjusting mechanism for motorcycle shock absorber

Abstract

The utility model relates to a gas tank angle adjusting mechanism for a motorcycle shock absorber, which comprises a gas tank and a mounting seat, a gas supply channel is arranged on the gas tank, a gas inlet channel is arranged on the mounting seat, a hinge seat and a hinge part which are correspondingly arranged are respectively arranged between the mounting seat and the gas tank, and a hinge shaft is arranged between the hinge seat and the hinge part in a penetrating manner. A first conveying air cavity and a second conveying air cavity are formed in the hinge shaft, an air conveying channel is formed in an inner cavity of the hinge shaft, one end of the air conveying channel is communicated with the first conveying air cavity through a first air conveying hole, and the other end of the air conveying channel is communicated with the second conveying air cavity through a second air conveying hole. The installation base is hinged to the gas tank through the hinge shaft, the gas tank can rotate around the hinge shaft relative to the installation base, multi-angle adjustment of the gas tank is achieved, the stability and continuity of a shock absorber gas path system are guaranteed, and the problems that due to the fact that a traditional fixed gas tank cannot be matched with the frame space, installation conflicts exist, and the gas path performance is reduced are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a motorcycle shock absorber field especially relates to a gas tank angle adjusting mechanism for motorcycle shock absorber. BACKGROUND

[0002] The shock absorber is an important device of the motorcycle, in order to alleviate and attenuate the impact and vibration that the motorcycle receives due to the uneven road in the running process, ensure the smoothness and comfort of driving, be favorable to improve the service life and the stability of the motorcycle of operating.

[0003] The utility model discloses a novel motorcycle shock absorbing structure, including air bag cylinder and upper installation sleeve, the bottom fixed connection of upper installation sleeve has the outer sleeve, the bottom fixed installation of inner shaft rod has lower installation sleeve, and the spring is fixed between upper installation sleeve and lower installation sleeve, and one side of upper installation sleeve is fixedly connected with the connecting rod, and the bottom fixed installation of connecting rod has air bag cylinder, the hydraulic pressure gas in the first gas cavity and second gas cavity can be adjusted through the second knob, first threaded rod and first piston set up in the bottom of air bag cylinder, and first threaded rod drives first piston to adjust the space of the hydraulic pressure gas in the first gas cavity, when the space in the first gas cavity is larger, the reciprocating stroke of hydraulic pressure gas is longer, so when the shock absorber meets the bump, the up and down floating is larger, when the space in the first gas cavity is smaller, the reciprocating stroke of hydraulic pressure gas is shorter, when the shock absorber meets the bump road condition, the up and down floating is smaller, realize the soft and hard of adjusting shock absorber.

[0004] But the air bag cylinder is fixedly connected with the upper installation sleeve through the connecting rod in the above -mentioned scheme, and the installation angle cannot be adjusted, because the frame structure of different vehicle types is quite different, the air bag cylinder of fixed angle is difficult to adapt due to space limitation or position conflict when installing, influence shock absorbing performance and whole vehicle layout, cannot universally adapt to different installation environment. SUMMARY

[0005] The utility model provides a gas tank angle adjusting mechanism for motorcycle shock absorber to solve the technical problem of the prior art.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: A kind of gas tank angle adjusting mechanism for motorcycle shock absorber, including gas tank and the mounting seat for being connected with shock absorber, air supply passage is set on the gas tank, the air inlet passage is equipped on the mounting seat, hinging seat and hinging part corresponding each other are respectively equipped between the mounting seat and gas tank, hinging axle is arranged between the hinging seat and hinging part, the hinging axle cooperates with the hinging seat of one side to form first gas conveying cavity, and cooperates with hinging part to form second gas conveying cavity, gas conveying passage is set in the hinging axle, one end of the gas conveying passage is communicated with first gas conveying cavity by first gas hole, and the other end is communicated with second gas conveying cavity by second gas hole, one end of the air supply passage is communicated with first gas conveying cavity or second gas conveying cavity, the air inlet passage is communicated with second gas conveying cavity or first gas conveying cavity, the mounting seat and gas tank are hinged by hinging axle, and gas tank can rotate relative to mounting seat around hinging axle.

[0007] By the above technical scheme, the mounting seat and the gas tank can be hinged by hinging axle through thread, nut, riveting, clamp, bolt and the like, the mounting seat and the gas tank are hinged by hinging axle, the gas conveying passage is set in the hinging axle, one end of the gas conveying passage is communicated with first gas conveying cavity on the side of the mounting seat through first gas hole, and the other end is communicated with second gas conveying cavity on the side of the gas tank through second gas hole, the air supply passage of the gas tank and the air inlet passage of the mounting seat are respectively communicated with the two gas cavities, when the gas tank rotates around the hinging axle to adjust the mounting angle, the gas conveying passage always serves as the intermediate passage of gas-liquid flow, so that the air supply passage and the air inlet passage remain communicated through first gas conveying cavity, gas conveying passage and second gas conveying cavity, avoiding interruption of gas circuit during angle adjustment, at the same time, the gas cavity structure formed by the cooperation of the hinging axle, the hinging seat and the hinging part maintains the pressure balance in the gas cavity through dynamic alignment of the gas holes when the gas tank rotates, so that the stability and continuity of the gas circuit system of the shock absorber are ensured while the gas tank is adjusted at multiple angles, and the problems of installation conflict and performance decline of gas circuit caused by the fact that the traditional fixed gas tank cannot adapt to the space of the frame are solved.

[0008] The above-mentioned gas tank angle adjusting mechanism for motorcycle shock absorber can be further provided with the following configurations: the hinging seat is arranged on the mounting seat, the hinging part is arranged at the end of the gas tank, the hinging axle is provided with air inlet sealing structure corresponding to first gas conveying cavity, and is provided with air supply sealing structure corresponding to second gas conveying cavity.

[0009] The above technical scheme fixes the hinged seat on the mounting seat, the hinged part is arranged at the end of the gas tank, and an independent sealing structure is arranged for the gas cavity, thereby solving the poor adaptability and gas leakage of the traditional fixed gas tank due to the angle being not adjustable, the air inlet sealing structure is arranged at the first conveying gas cavity, the air supply sealing structure is arranged at the second conveying gas cavity, when the gas tank rotates around the hinge shaft to adjust the angle, the sealing structure is always close to the surface of the hinge shaft, a dynamic sealing interface is formed, the gas cavity and the external environment are effectively isolated, meanwhile, the first gas inlet hole and the second gas inlet hole are respectively arranged between the two groups of sealing rings, so that the gas and liquid only flow between the air inlet channel and the air supply channel through the gas conveying channel, and the gas and liquid are prevented from seeping out from the hinge gap, the design is sealed independently in the cavity and cooperates with the multi-stage dynamic sealing, the internal pressure of the gas cavity is maintained stable during the angle adjustment of the gas tank, the gas circuit is prevented from being interrupted or leaked, the installation angle of the gas tank is flexibly adjusted to adapt to different frame spaces, and the continuity and sealing reliability of the gas-liquid circulation system of the shock absorber are ensured.

[0010] The above-mentioned angle adjusting mechanism for the gas tank of the motorcycle shock absorber can be further provided as follows: the air inlet sealing structure includes two spaced first sealing ring installation grooves arranged on the hinged seat and first sealing rings arranged in the first sealing ring installation grooves respectively, the first gas inlet hole is arranged between the two adjacent first sealing rings, the air supply sealing structure includes two spaced second sealing ring installation grooves arranged on the hinged part and second sealing rings arranged in the second sealing ring installation grooves respectively, and the second gas inlet hole is arranged between the two adjacent second sealing rings.

[0011] The above technical scheme solves the gas leakage problem during the angle adjustment of the gas tank through the dynamic sealing design of the double-sealing-ring clamping gas inlet hole, two spaced first sealing ring installation grooves are arranged on the hinged seat, the first sealing rings are arranged in the grooves respectively, the first gas inlet hole is located between the two sealing rings, when the gas tank rotates around the hinge shaft, the two groups of first sealing rings are always close to the surface of the hinge shaft, two dynamic sealing barriers are formed, the first gas inlet hole is wrapped in the sealing interval, the gas and liquid can only enter the gas conveying channel of the hinge shaft through the first gas inlet hole, and the external impurities are prevented from invading or the internal gas and liquid are prevented from leaking out, similarly, the second sealing rings are arranged in the second sealing ring installation grooves on the hinged part, the second gas inlet hole is located between the two sealing rings, during the angle adjustment of the gas tank, the second sealing rings keep sealing contact with the hinge shaft and the hinged part in the relative rotation, the dynamic alignment and conduction of the second gas inlet hole and the gas conveying channel are allowed, and the gas and liquid in the second conveying gas cavity are prevented from seeping out from the hinge gap, through the structure of the double-sealing-ring clamping gas inlet hole, a closed gas and liquid transmission path is formed in the dynamic adjustment, the gas circuit pressure is maintained stable, and the sealing failure caused by the change of the angle of the gas tank is avoided, so that the angle is flexibly adjusted, and the sealing reliability and continuity of the gas and liquid circulation system are ensured.

[0012] The motorcycle shock absorber gas tank angle adjusting mechanism can be further provided with: the hinge shaft is provided with a first gas conveying ring groove at the position corresponding to the first gas conveying hole and a second gas conveying sliding groove at the position corresponding to the second gas conveying hole, and one end of the hinge shaft is provided with a plug for plugging the gas conveying channel.

[0013] By arranging the first and second gas conveying ring grooves, the first and second gas conveying cavities are formed on the hinge shaft, the hinge shaft is easier to process than the hinge seat and the hinge part, when the gas tank rotates around the hinge shaft, the ring groove type of the first gas conveying ring groove expands the gas-liquid contact area, ensures that the first gas conveying hole is always dynamically aligned with the gas path inlet of the first gas conveying cavity, avoids the decrease or interruption of the gas path cross-sectional area due to the angle deviation, and the second gas conveying sliding groove is arranged at the position corresponding to the second gas conveying hole of the hinge shaft, the sliding groove extends along the hinge shaft in the axial direction, allows the second gas conveying hole to slightly move along the sliding groove direction during the angle adjustment of the gas tank, compensates for the relative displacement between the hinge part and the hinge shaft, maintains the gas path connectivity of the second gas conveying hole and the second gas conveying cavity, and further, the process hole is arranged for facilitating the processing of the conveying channel, and the plug arranged at one end of the hinge shaft is connected through threads to plug the end of the gas conveying channel, which prevents gas-liquid leakage and allows the plug to be removed for direct cleaning or dredging of the deposits in the gas conveying channel during maintenance, avoiding the blockage of the gas path.

[0014] The motorcycle shock absorber gas tank angle adjusting mechanism can be further provided with: the plug and the hinge shaft are detachably connected.

[0015] By detachable connection of the plug and the hinge shaft, the problem of difficult maintenance of the gas conveying channel is solved, the plug is screwed to the inner wall of the hinge shaft through the thread structure, completely plugs the end of the gas conveying channel during normal use, prevents gas-liquid leakage, and when cleaning or dredging the gas conveying channel is needed, the plug can be directly contacted with the inside of the channel by unscrewing, the deposited gas mud or impurities are removed, and the blockage of the gas path due to long-term use is avoided to affect the shock absorbing performance.

[0016] The motorcycle shock absorber gas tank angle adjusting mechanism can be further provided with: one end of the hinge shaft is provided with a nut, the other end is provided with a threaded part, and the end of the hinge shaft with the threaded part is connected with the nut after passing through the hinge seat and the hinge part, thereby mutually hinging the mounting seat and the gas tank.

[0017] The hinge shaft is provided with a nut at one end, which is convenient to clamp or manually rotate by a tool, and is provided with a threaded part at the other end. After the threaded part passes through the hinge seat of the mounting seat and the hinge part of the gas tank in sequence, the two are fixed by tightening the nut. The cooperation of the nut and the screw cap forms an axial clamping force, so that the hinge seat and the hinge part are tightly fitted, the hinge gap is eliminated, and the structural stability of the gas tank when rotating around the hinge shaft is ensured. At the same time, the tightening degree of the nut can adjust the friction between the hinge shaft and the hinge seat and the hinge part, which allows the gas tank to rotate smoothly when adjusting the angle, and can fix the position by locking the nut after the angle is determined, preventing accidental deviation caused by vibration or external force, thereby simplifying the assembly process of the hinge shaft and improving the convenience of adjustment operation. At the same time, the locking mechanism of the nut balances flexibility and stability, ensuring reliable adaptation of the gas tank to the vehicle frame in multi-angle adjustment scenarios.

[0018] The motorcycle shock absorber gas tank angle adjusting mechanism can be further provided with a clamp at the end of the threaded part, and the clamp is arranged in abutment with the nut.

[0019] The above technical scheme can further set a clamp at the end of the threaded part, and the clamp is arranged in abutment with the nut. The clamp can prevent the nut from loosening in a vibrating environment. When the nut is tightened, the clamp applies a reverse restraining force to the nut through its rigid structure to prevent the nut from rotating in the opposite direction due to vibration or external force. When the gas tank is adjusted in angle around the hinge shaft, the hard contact between the clamp and the nut forms double locking, which retains the original friction force of the threaded pair to prevent loosening and completely eliminates the backspace of the nut through physical limiting of the clamp, thereby ensuring the structural stability of the gas tank after angle adjustment and avoiding gas path sealing failure or increased hinge gap due to loosening of the nut.

[0020] The motorcycle shock absorber gas tank angle adjusting mechanism can further be provided with a hinge seat including a first hinge seat and a second hinge seat arranged in correspondence with the hinge part axis. The hinge shaft and the first hinge seat form a first gas conveying cavity. The gas inlet channel communicates with the first gas conveying cavity through the first hinge seat. The first hinge seat and the second hinge seat are provided with a hinge space for mounting the hinge part. The hinge part is arranged in the hinge space and in abutment with the first hinge seat and the second hinge seat.

[0021] Using the above technical solution, the first hinge seat and the second hinge seat are symmetrically arranged on the mounting base, with a reserved hinge space between them to accommodate the hinge part at the end of the gas tank, forming a stable three-point support structure. This ensures that the gas tank is subjected to uniform force when rotating around the hinge axis, avoiding unilateral wear. The air inlet channel passes through the first hinge seat and directly connects to the first delivery air chamber formed by its cooperation with the hinge axis, ensuring that gas and liquid enter the delivery channel from the mounting base side without detours, reducing pressure loss. The hinge part is embedded in the hinge space and fits against the end faces of the two hinge seats. The mechanical limiting of the contact surface constrains the axial displacement of the gas tank, while allowing radial rotation, realizing the degree of freedom control for adjusting the angle of the gas tank. The symmetrical layout of the first hinge seat and the second hinge seat provides double-sided rigid support for the hinge part while ensuring air passage, enhancing the torsional strength of the overall structure and preventing deformation of the air chamber or sealing failure due to high-frequency vibration.

[0022] The aforementioned air tank angle adjustment mechanism for a motorcycle shock absorber can be further configured such that: the surface of the hinge portion corresponding to the second hinge seat is provided with a first stop tooth surface, and the surface of the second hinge seat is provided with a second stop tooth surface that engages and engages with the first stop tooth surface.

[0023] Using the above technical solution, the contact surfaces of the hinge part and the second hinge seat are respectively machined with a first stop tooth surface and a second stop tooth surface. The two tooth surfaces are mutually matched sawtooth or trapezoidal tooth structures. When the gas tank rotates around the hinge axis to the target angle, the first stop tooth surface and the second stop tooth surface form a mechanical interlock through tooth groove meshing. The normal force and tangential resistance generated by the tooth profile inclined surface prevent the gas tank from rotating accidentally. At the same time, the tooth surface meshing depth and tooth profile inclination angle are optimized to provide sufficient torsional strength while ensuring adjustment flexibility, and avoid tooth surface wear or slippage caused by frequent adjustment.

[0024] The aforementioned air tank angle adjustment mechanism for a motorcycle shock absorber can be further configured such that: the mounting base has a T-shaped groove corresponding to the second hinge seat, and the second hinge seat has a T-shaped mounting block installed in the T-shaped groove.

[0025] Using the above technical solution, the mounting base has a T-shaped groove at the position corresponding to the second hinge seat. A matching T-shaped mounting block is machined on the bottom of the second hinge seat. During assembly, the T-shaped mounting block is embedded in the groove. Utilizing the lateral constraint and longitudinal limiting function of the T-shaped section, the radial displacement and rotational freedom of the second hinge seat on the mounting base are restricted. This prevents the hinge seat from shifting or loosening due to uneven force when the gas tank adjusts its angle around the hinge axis. At the same time, the open end design of the T-shaped groove allows the second hinge seat to slide along the groove axis, facilitating the adjustment of the hinge seat spacing to accommodate hinge parts of different sizes. Furthermore, the embedded connection between the T-shaped mounting block and the groove does not require additional fasteners, simplifying the assembly process and improving the overall structural integrity. This ensures a rigid connection between the second hinge seat and the mounting base, maintains the precise alignment of the air intake channel and the first delivery air chamber, and facilitates product processing and easy installation.

[0026] The present invention will now be further described with reference to the accompanying drawings. Attached Figure Description

[0027] Figure 1 This is a perspective view of an embodiment of the present utility model.

[0028] Figure 2 Explosion of this utility model embodiment Figure 1 .

[0029] Figure 3 Explosion of this utility model embodiment Figure 2 .

[0030] Figure 4 This is a right view of an embodiment of the present utility model.

[0031] Figure 5 for Figure 4 Sectional view and enlarged view along the AA direction.

[0032] Figure 6 This is a partial internal airflow diagram of an embodiment of the present invention after removing the hinge shaft 4.

[0033] Figure 7 This is a diagram showing the state of the motorcycle shock absorber during adjustment, according to an embodiment of the present invention. Implementation

[0034] like Figures 1-7As shown, a motorcycle shock absorber air tank angle adjustment mechanism includes an air tank 1 and a mounting base 3 for connecting to a shock absorber 2. The air tank 1 has an air supply channel 11, the mounting base 3 has an air intake channel 31, and the mounting base 3 has a hinge seat 32. The end of the air tank 1 has a hinge portion 12. A hinge shaft 4 passes through the hinge seat 32 and the hinge portion 12. The hinge seat 32 includes a first hinge seat 321 and a second hinge seat 322, which are corresponding to the axis of the hinge portion 12. The hinge shaft 4 cooperates with the first hinge seat 321 to form a first air delivery chamber 41. The air intake channel 31 passes through the first hinge seat 321 and communicates with the first air delivery chamber 41. The first hinge seat 321 and the second hinge seat 322... A hinge space 323 is provided between the seats 322 for mounting the hinge part 12. The hinge part 12 is disposed in the hinge space 323 and abuts against the first hinge seat 321 and the second hinge seat 322. The hinge shaft 4 cooperates with the hinge part 12 to form a second air delivery chamber 42. An air delivery channel 43 is provided in the inner cavity of the hinge shaft 4. One end of the air delivery channel 43 is connected to the first air delivery chamber 41 through the first air delivery hole 411, and the other end is connected to the second air delivery chamber 42 through the second air delivery hole 421. One end of the air supply channel 11 passes through the hinge part 12 and is connected to the second air delivery chamber 42. The mounting seat 3 and the gas tank 1 are hinged by the hinge shaft 4, so that the gas tank 1 can rotate relative to the mounting seat 3 around the hinge shaft 4.

[0035] like Figures 2-6 As shown, the hinge shaft 4 is provided with an air inlet sealing structure at the first air delivery chamber 41 and an air supply sealing structure at the second air delivery chamber 42. The air inlet sealing structure includes two spaced-apart first sealing ring mounting grooves 5 on the first hinge seat 321 and first sealing rings 51 respectively disposed in the first sealing ring mounting grooves 5. The first air supply hole 411 is installed between two adjacent first sealing rings 51. The air supply sealing structure includes two spaced-apart second sealing ring mounting grooves 6 on the hinge portion 12 and second sealing ring mounting grooves 6 respectively disposed in the second sealing ring mounting grooves 6. The second sealing ring 61 and the second air supply hole 421 are installed between two adjacent second sealing rings 61. The hinge shaft 4 is provided with a first air supply ring groove 412 corresponding to the first air supply hole 411 and a second air supply slide groove 422 corresponding to the second air supply hole 421. One end of the hinge shaft 4 is provided with a plug 44 for sealing the air supply channel 43. The plug 44 is threaded to the inner wall of the hinge shaft 4, which facilitates cleaning of the air supply channel 43. It should be noted that the gas tank and the oil tank can be interchanged under different conditions, and the conveying medium can be gas or liquid.

[0036] like Figures 1-6 As shown, the hinge shaft 4 is a bolt structure. One end of the hinge shaft 4 is provided with a nut 45 and the other end is provided with a threaded part 46. The end of the hinge shaft 4 with the threaded part 46 passes through the hinge seat 32 and the hinge part 12 and is connected to the nut 7, so that the mounting seat 3 and the gas tank 1 are hinged together.

[0037] The end of the threaded part 46 is provided with a clamp 71, which abuts against the nut 7. The hinge part 12 is provided with a first stop tooth surface 121 on the surface corresponding to the second hinge seat 322. The surface of the second hinge seat 322 is provided with a second stop tooth surface 3221 that engages and locks with the first stop tooth surface 121. The mounting seat 3 is provided with a T-shaped groove 33 corresponding to the second hinge seat 322. The second hinge seat 322 is provided with a T-shaped mounting block 3222 installed in the T-shaped groove 33.

[0038] When the air tank angle adjustment mechanism of this utility model is used on a motorcycle shock absorber, the following steps are taken when it is necessary to adjust the angle of the air tank 1: Use a tool to remove the clamp 71 and rotate the nut 7 counterclockwise to move it outward along the threaded part 46 of the hinge shaft 4, releasing the axial locking force on the hinge shaft 4. Then, manually rotate the air tank 1 slightly to disengage the first stop tooth surface 121 of the hinge part 12 from the second stop tooth surface 3221 of the second hinge seat 322, releasing the angle fixation. Hold the air tank 1 and rotate it around the axis of the hinge shaft 4. By observing the spatial compatibility between the mounting seat 3 and the frame, adjust the air tank 1 to the target angle. After the tank 1 is rotated to the target angle, the first stop tooth surface 121 and the second stop tooth surface 3221 are re-engaged. The angle is initially fixed by the normal force and tangential resistance generated by the tooth profile inclined surface. Then, the nut 7 is rotated clockwise so that it moves along the threaded part 46 towards the nut 45 of the hinge shaft 4. Then, the end is fitted with the clamp 71. The rigid limit of the clamp 71 prevents the nut 7 from retracting, forming a double anti-loosening mechanism. The sealing status of the first sealing ring 51 and the second sealing ring 61 is checked to ensure that there is no gas or liquid leakage after the first air outlet 411 and the second air outlet 421 are dynamically adjusted. It is confirmed that the angle of the gas tank 1 is fixed and stable, and there is no spatial interference with the frame. The angle adjustment of the gas tank is completed.

Claims

1. A motorcycle shock absorber air tank angle adjustment mechanism, comprising an air tank and a mounting base for connecting to the shock absorber, wherein the air tank has an air supply channel and the mounting base has an air intake channel, characterized in that: The mounting base and the gas tank are respectively provided with corresponding hinge seats and hinge parts. A hinge shaft passes through the hinge seats and hinge parts. The hinge shaft cooperates with the hinge seat on one side to form a first gas delivery chamber and cooperates with the hinge part to form a second gas delivery chamber. The inner cavity of the hinge shaft has a gas delivery channel. One end of the gas delivery channel is connected to the first gas delivery chamber through a first gas delivery hole, and the other end is connected to the second gas delivery chamber through a second gas delivery hole. One end of the gas supply channel is connected to the first gas delivery chamber or the second gas delivery chamber, and the gas inlet channel is connected to the second gas delivery chamber or the first gas delivery chamber. The mounting base and the gas tank are hinged by the hinge shaft, allowing the gas tank to rotate relative to the mounting base around the hinge shaft.

2. The air tank angle adjustment mechanism for a motorcycle shock absorber according to claim 1, characterized in that: The hinge seat is disposed on the mounting base, the hinge part is disposed at the end of the gas tank, and the hinge shaft is provided with an air inlet sealing structure at the first gas delivery chamber and an air supply sealing structure at the second gas delivery chamber.

3. The air tank angle adjustment mechanism for a motorcycle shock absorber according to claim 2, characterized in that: The air intake sealing structure includes two spaced-apart first sealing ring mounting grooves on the hinge seat and first sealing rings respectively disposed in the first sealing ring mounting grooves. The first air supply hole is installed between two adjacent first sealing rings. The air supply sealing structure includes two spaced-apart second sealing ring mounting grooves on the hinge portion and second sealing rings respectively disposed in the second sealing ring mounting grooves. The second air supply hole is installed between two adjacent second sealing rings.

4. The air tank angle adjustment mechanism for a motorcycle shock absorber according to claim 3, characterized in that: The hinge shaft is provided with a first air supply ring groove at the first air supply hole and a second air supply sliding groove at the second air supply hole. One end of the hinge shaft is provided with a plug for sealing the air supply channel.

5. The air tank angle adjustment mechanism for a motorcycle shock absorber according to claim 4, characterized in that: The plug is detachably connected to the hinge shaft.

6. A motorcycle shock absorber air tank angle adjustment mechanism according to any one of claims 1-5, characterized in that: The hinge shaft has a nut at one end and a threaded part at the other end. The threaded end of the hinge shaft passes through the hinge seat and the hinge part and is connected to the nut, so as to hinge the mounting seat and the gas tank together.

7. The air tank angle adjustment mechanism for a motorcycle shock absorber according to claim 6, characterized in that: The end of the threaded portion is provided with a clamp, which is abutted against the nut.

8. A motorcycle shock absorber air tank angle adjustment mechanism according to any one of claims 1-5, characterized in that: The hinge base includes a first hinge base and a second hinge base corresponding to the axis of the hinge part. The hinge shaft cooperates with the first hinge base to form a first conveying air chamber. The air intake channel passes through the first hinge base and communicates with the first conveying air chamber. A hinge space is provided between the first hinge base and the second hinge base for the installation of the hinge part. The hinge part is disposed in the hinge space and abuts against the first hinge base and the second hinge base.

9. The air tank angle adjustment mechanism for a motorcycle shock absorber according to claim 8, characterized in that: The hinge portion has a first stop tooth surface on the surface corresponding to the second hinge seat, and the surface of the second hinge seat has a second stop tooth surface that engages and locks with the first stop tooth surface.

10. The air tank angle adjustment mechanism for a motorcycle shock absorber according to claim 9, characterized in that: The mounting base is provided with a T-shaped groove corresponding to the second hinge seat, and the second hinge seat is provided with a T-shaped mounting block installed in the T-shaped groove.

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