Motorcycle shock absorber capable of adjusting angle of gas tank

Abstract

The utility model relates to a motorcycle shock absorber capable of adjusting the angle of a gas tank, which comprises a shock absorber body, a mounting seat and the gas tank, the mounting seat is hinged with the gas tank through a hinge shaft, and a gas transmission channel is arranged in the hinge shaft to communicate a gas supply channel of the gas tank with a gas inlet channel of the mounting seat so as to realize dynamic communication of a gas circuit during multi-angle adjustment of the gas tank. The two ends of the hinged shaft, the hinged seat and the hinged part form a first conveying air cavity and a second conveying air cavity respectively, the first conveying air cavity and the second conveying air cavity are aligned with the air conveying channel through the first air conveying hole and the second air conveying hole, air path continuity is guaranteed, and the flow adjusting mechanism comprises a thread driving valve element to achieve accurate flow gear adjusting, touch feedback gear prompting and vibration loosening prevention. The problems that a traditional gas tank is poor in fixing angle adaptability and rough in flow adjustment are solved, high precision, looseness prevention and operation intuition are achieved, the device is suitable for complex vehicle frame layout, and the damping performance and user experience are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of motorcycle shock absorber field, in particular to a kind of motorcycle shock absorber of adjustable gas tank angle. BACKGROUND

[0002] Shock absorber is the important device of motorcycle, in order to mitigate and attenuate the impact and vibration that motorcycle is received due to road unevenness in the process of driving, ensure the smoothness and comfort of driving, it is favorable to improve the service life and the stability of steering of motorcycle.

[0003] The utility model discloses a novel motorcycle damping structure discloses the prior art document CN211648891U, including air bag cylinder and upper mounting sleeve, the bottom of upper mounting sleeve is fixedly connected with outer sleeve, inner shaft rod bottom is fixedly installed with lower mounting sleeve, spring is fixedly arranged between upper mounting sleeve and lower mounting sleeve, the side of upper mounting sleeve is fixedly connected with connecting rod, the bottom of connecting rod is fixedly installed with air bag cylinder, the hydraulic oil in the inside of first oil cavity and second oil cavity can be adjusted by the second knob, first threaded rod and first piston set in the bottom of air bag cylinder, first threaded rod drives first piston to adjust the space of hydraulic oil in the inside of first oil cavity, when the space in the inside of first oil cavity becomes larger, the return stroke of hydraulic oil becomes longer, so when shock absorber meets bumping, it is larger to float up and down, when the space in the inside of first oil cavity becomes smaller, the return stroke of hydraulic oil becomes shorter, when shock absorber meets bumping road condition, it is smaller to float up and down, realize the soft and hard of adjusting shock absorber.

[0004] But the above scheme has the following defects in actual use process:

[0005] Air bag cylinder is fixedly connected with upper mounting sleeve by connecting rod, and the installation angle cannot be adjusted, due to the big difference of frame structure of different vehicle models, the air bag cylinder of fixed angle will cause adaptation difficulty due to space limitation or position conflict when installing, influence damping performance and whole vehicle layout, cannot be universally adapted to different installation environments.

[0006] When existing flow regulating mechanism adjusts oil cavity volume by second knob driving first threaded rod and piston, there are three defects of low adjustment precision (threaded pair pitch limitation causes oil cavity fine adjustment difficulty, shock absorber soft and hard adjustment nonlinearity), easy to loosen and fail (thread lacks loosening mechanism, vibration causes piston deviation and oil cavity volume fluctuation) and no adjustment feedback (knob has no scale or gear indication, so that operation blindness is high, and debugging efficiency is low), seriously influence damping performance stability and user experience. SUMMARY

[0007] The utility model provides a kind of motorcycle shock absorber of adjustable gas tank angle to the technical problems to be solved by the utility model in view of the deficiencies of the prior art.

[0008] To achieve the above object, the utility model provides the following technical scheme: A motorcycle shock absorber of adjustable air tank angle, including shock absorber body and air damping device connected with shock absorber body, air damping device includes the mount pad of setting on shock absorber body and the air tank connected with mount pad, be equipped with the flow regulation mechanism of the air supply of shock absorber body in mount pad, the input of flow regulation mechanism is equipped with the air inlet channel of communication with air tank, the output is equipped with the gas channel of the air supply of shock absorber body, the air channel is opened on air tank, the air tank angle regulation mechanism is equipped between mount pad and air tank, the air tank angle regulation mechanism includes the hinged seat of setting on mount pad, the hinged part of setting on air tank and the hinge shaft of being arranged in the hinged seat and hinged part, the hinge shaft cooperates with one side hinged seat and forms first gas delivery cavity, cooperates with hinged part and forms second gas delivery cavity, the inner chamber of hinge shaft is opened with gas channel, one end of gas channel is communicated with first gas delivery cavity through first gas hole, the other end is communicated with second gas delivery cavity through second gas hole, the air channel is communicated with second gas delivery cavity after passing through hinged part, the air inlet channel is communicated with first gas delivery cavity after passing through hinged seat, the mount pad is hinged with air tank through hinge shaft, and air tank can rotate around hinge shaft relative to mount pad.

[0009] The hinge shaft can be hinged with the mount pad and the air tank through the hinge shaft by means of thread, nut, riveting, clamp, bolt, etc. The mount pad and the air tank are hinged through the hinge shaft. The hinge shaft is internally provided with a gas channel. One end of the gas channel is communicated with the first gas delivery cavity on the side of the mount pad through a first gas hole. The other end of the gas channel is communicated with the second gas delivery cavity on the side of the air tank through a second gas hole. The air channel of the air tank is communicated with the second gas delivery cavity through the hinged part. The air inlet channel of the mount pad is communicated with the first gas delivery cavity through the hinged seat. When the air tank is rotated around the hinge shaft to adjust the installation angle, the gas channel always serves as an intermediate passage for gas transmission. The air channel and the air inlet channel are dynamically communicated through the first gas delivery cavity, the gas channel, and the second gas delivery cavity. The angle adjustment process is avoided to interrupt or change the cross-sectional area of the gas path. The first gas delivery cavity formed by the hinge shaft and the hinged seat is aligned with the gas channel through the first gas hole. The second gas delivery cavity formed by the hinge shaft and the hinged part is aligned with the gas channel through the second gas hole. The two gas delivery cavities maintain precise docking of the gas path inlet and outlet through the adaptation of the gas holes when the air tank is rotated. The gas flow is stable. At the same time, the rigid support structure of the hinged seat and the hinged part restricts the axial displacement of the air tank, allowing only rotation around the hinge shaft. The air tank is adjusted at multiple angles to adapt to different spatial layouts of the vehicle frame, ensuring the continuity and sealing of the shock absorber gas path system, and completely solving the spatial conflict and gas path performance fluctuation problem caused by the unadjustable installation angle of the traditional fixed air tank.

[0010] The motorcycle shock absorber capable of adjusting the angle of the gas tank can be further provided with: the hinge shaft is provided with an air inlet sealing structure corresponding to the first gas conveying cavity and a gas supply sealing structure corresponding to the second gas conveying cavity, the air inlet sealing structure comprises two spaced first sealing ring installation grooves provided on the hinge seat and first sealing rings respectively provided in the first sealing ring installation grooves, and the first gas hole is installed between the two adjacent first sealing rings, and the gas supply sealing structure comprises two spaced second sealing ring installation grooves provided on the hinge part and second sealing rings respectively provided in the second sealing ring installation grooves, and the second gas hole is installed between the two adjacent second sealing rings.

[0011] By adopting the technical scheme, the air path leakage problem during the angle adjustment of the gas tank is solved through the dynamic sealing design of the double-sealing-ring clamping gas hole, two spaced first sealing ring installation grooves are formed on the hinge seat, the first sealing rings are respectively installed in the grooves, the first gas 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 in close contact with the surface of the hinge shaft, forming two dynamic sealing barriers, which wrap the first gas hole in the sealing interval, ensuring that the gas-liquid can only enter the gas conveying channel of the hinge shaft through the first gas hole, while blocking the intrusion of external impurities or the leakage of internal gas-liquid, and similarly, two groups of second sealing rings are arranged in the second sealing ring installation grooves on the hinge part, the second gas 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 part and the hinge shaft during relative rotation, which not only allows the dynamic alignment and conduction of the second gas hole and the gas conveying channel, but also prevents the gas-liquid in the second gas conveying cavity from seeping out from the hinge gap, through the structure of the double-sealing-ring clamping gas hole, a closed gas-liquid transmission path is formed during dynamic adjustment, which not only maintains the stability of the gas path pressure, but also avoids the sealing failure caused by the change of the angle of the gas tank, so that the angle is flexibly adjusted, and the sealing reliability and continuity of the gas-liquid circulation system are ensured.

[0012] The motorcycle shock absorber capable of adjusting the angle of the gas tank can be further provided with: the hinge shaft is provided with an air inlet sealing structure corresponding to the first gas conveying cavity and a gas supply sealing structure corresponding to the second gas conveying cavity, the air inlet sealing structure comprises two spaced first sealing ring installation grooves provided on the hinge seat and first sealing rings respectively provided in the first sealing ring installation grooves, and the first gas hole is installed between the two adjacent first sealing rings, and the gas supply sealing structure comprises two spaced second sealing ring installation grooves provided on the hinge part and second sealing rings respectively provided in the second sealing ring installation grooves, and the second gas hole is installed between the two adjacent second sealing rings.

[0013] The first and second gas conveying grooves are formed on the hinge shaft, compared with the hinge seat and the hinge part, the outside of the hinge shaft is easier to process, so that when the gas tank rotates around the hinge shaft, the ring groove type of the first gas conveying groove expands the gas-liquid contact area, ensures that the first gas hole is always dynamically aligned with the gas path inlet of the first conveying gas cavity, avoids the decrease or interruption of the gas path cross-sectional area due to angle deviation, and the second gas conveying chute is arranged at the second gas hole corresponding to the hinge shaft, the chute extends along the hinge shaft in the axial direction, allows the second gas hole to slightly move along the direction of the chute when the angle of the gas tank is adjusted, compensates for the relative displacement between the hinge part and the hinge shaft, maintains the gas path connectivity of the second gas hole and the second conveying gas cavity, in addition, the process hole is arranged for the processing of the conveying channel, the detachable connection design of the plug and the hinge shaft solves the problem of difficult maintenance of the gas conveying channel, the plug is screwed with the inner wall of the hinge shaft through the thread structure, completely blocks the end of the gas conveying channel during normal use, prevents gas and liquid leakage, when cleaning or dredging the gas conveying channel is needed, only the plug needs to be unscrewed to directly contact the inside of the channel, remove the deposited gas mud or impurities, avoid affecting the damping performance due to long-term use.

[0014] The adjustable angle gas tank motorcycle shock absorber can be further provided with a screw cap at one end of the hinge shaft and a threaded part at the other end, one end of the hinge shaft with the threaded part passes through the hinge seat and the hinge part and is connected with the nut, and the mounting seat and the gas tank are hingedly connected with each other.

[0015] 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 portion at the other end, which is sequentially threaded through the hinge seat of the mounting seat and the hinge portion of the gas tank, and then the two are fixed by tightening the nut, the cooperation of the nut and the screw cap forms an axial clamping force, which makes the hinge seat and the hinge portion tightly fit, eliminates the hinge gap, ensures the structural stability of the gas tank when rotating around the hinge shaft, and 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 portion, which allows the gas tank to rotate smoothly when adjusting the angle, and can fix the position after the angle is determined to prevent accidental deviation caused by vibration or external force, thereby simplifying the assembly process of the hinge shaft and improving the convenience of adjustment operation, and at the same time, the nut locking mechanism balances flexibility and stability to ensure reliable adaptation of the gas tank to the vehicle frame in multi-angle adjustment scenarios, and the end of the threaded portion is provided with a clamp, which is arranged in abutment with the nut, since the shock absorber is arranged on the vehicle, in order to avoid loosening due to vibration, the clamp is additionally arranged at the end of the threaded portion and abuts against the nut, thereby solving the problem of easy loosening of the nut in a vibrating environment, when the nut is tightened, the clamp applies a reverse restraining force to the nut through its rigid structure, preventing 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 not only retains the original friction force of the threaded pair to prevent loosening, but also completely eliminates the backspace of the nut through the physical limiting of the clamp, thereby ensuring the structural stability of the gas tank after angle adjustment and avoiding the failure of gas path sealing or the increase of hinge gap due to loosening of the nut.

[0016] The adjustable gas tank angle motorcycle shock absorber can be further provided as follows: the hinge seat comprises a first hinge seat and a second hinge seat arranged in correspondence with the hinge portion axis, the hinge shaft and the first hinge seat cooperate to form a first gas conveying cavity, the gas inlet channel is communicated with the first gas conveying cavity by penetrating through the first hinge seat, and the hinge space for mounting the hinge portion is arranged between the first hinge seat and the second hinge seat.

[0017] The first hinge seat and the second hinge seat are symmetrically arranged on the mounting seat, the hinge space is reserved between the two to accommodate the hinge portion at the end of the gas tank, forming a stable three-point support structure, so that the gas tank rotates evenly around the hinge shaft, avoiding unilateral wear, the gas inlet channel directly communicates with the first gas conveying cavity formed by the cooperation of the first hinge seat and the hinge shaft, ensuring that the gas-liquid enters the gas conveying channel without detouring from the side of the mounting seat, reducing pressure loss, the hinge portion is embedded in the hinge space and abuts against the end faces of the two hinge seats, the axial displacement of the gas tank is constrained by the mechanical limiting of the contact surface, while the radial rotation is allowed, realizing the freedom control of the gas tank angle adjustment, and the symmetric layout of the first hinge seat and the second hinge seat provides bilateral rigid support for the hinge portion while the gas path is communicated, enhancing the torsional strength of the overall structure and preventing deformation or sealing failure of the gas cavity due to high-frequency vibration.

[0018] The motorcycle shock absorber with adjustable gas tank angle can be further provided with a first stop tooth surface on the surface of the hinge part corresponding to the second hinge seat, and a second stop tooth surface on the surface of the second hinge seat for clamping the first stop tooth surface.

[0019] According to the above technical scheme, the contact surfaces of the hinge part and the second hinge seat are respectively provided with the first stop tooth surface and the second stop tooth surface, and the two tooth surfaces are sawtooth or trapezoidal tooth structures matched with each other. When the gas tank is rotated to a target angle around the hinge shaft, the first stop tooth surface and the second stop tooth surface are mechanically interlocked through tooth groove meshing, and the normal force and tangential resistance generated by the tooth surface slope prevent the gas tank from rotating accidentally. At the same time, the meshing depth and the tooth shape inclination angle of the tooth surface are optimized to provide sufficient torsional strength on the premise of ensuring flexibility, avoiding tooth surface wear or slipping caused by frequent adjustment.

[0020] The motorcycle shock absorber with adjustable gas tank angle can be further provided with a first stop tooth surface on the surface of the hinge part corresponding to the second hinge seat, and a second stop tooth surface on the surface of the second hinge seat for clamping the first stop tooth surface.

[0021] According to the above technical scheme, the contact surfaces of the hinge part and the second hinge seat are respectively provided with the first stop tooth surface and the second stop tooth surface, and the two tooth surfaces are sawtooth or trapezoidal tooth structures matched with each other. When the gas tank is rotated to a target angle around the hinge shaft, the first stop tooth surface and the second stop tooth surface are mechanically interlocked through tooth groove meshing, and the normal force and tangential resistance generated by the tooth surface slope prevent the gas tank from rotating accidentally. At the same time, the meshing depth and the tooth shape inclination angle of the tooth surface are optimized to provide sufficient torsional strength on the premise of ensuring flexibility, avoiding tooth surface wear or slipping caused by frequent adjustment.

[0022] The motorcycle shock absorber capable of adjusting the angle of the air tank can be further provided with: the flow adjusting mechanism comprises a flow adjusting cavity arranged between the air inlet channel and the air outlet channel and a flow adjusting valve installed in the flow adjusting cavity, the flow adjusting valve comprises an adjusting valve body and an adjusting valve core, one end of the adjusting valve body is provided with an adjusting air outlet hole in communication with the air outlet channel, the adjusting valve core is provided with a flow adjusting part exposed outside the mounting seat at an end away from the adjusting air outlet hole, an air inlet cavity in communication with the air inlet channel is arranged between the flow adjusting part and the adjusting air outlet hole, a plurality of air inlet holes for guiding the air inlet cavity and the adjusting air outlet hole are arranged on the surface of the adjusting valve body, and the adjusting valve core is screw-installed in the adjusting valve body and moves towards or away from the adjusting air outlet hole along the screw thread when the flow adjusting part is rotated.

[0023] By adopting the technical scheme, the adjusting valve core of the flow adjusting valve is screw-installed in the adjusting valve body, when the flow adjusting part is rotated, the valve core moves along the screw thread, moves towards or away from the adjusting air outlet hole, and thus the passage sectional area between the air inlet hole and the adjusting air outlet hole is changed; the displacement of the valve core and the rotation angle are in linear relationship, the fine thread design makes the valve core move a small distance per rotation, the fine adjustment of the gas flow is realized, the air inlet cavity uniformly distributes the airflow of the air inlet channel to each air inlet hole, when the valve core moves towards the adjusting air outlet hole, the exposed area of the air inlet hole is reduced, the resistance of the airflow passing through the air inlet hole and entering the adjusting air outlet hole is increased, the flow is reduced, when the valve core moves away, the exposed area of the air inlet hole is increased, the flow is increased, the self-locking property of the screw pair and the cooperation of the sealing ring between the valve core and the valve body prevent the valve core from being displaced accidentally in the vibration environment, the stability of the adjusted flow parameter is ensured, and the cooperation structure of the tapered surface of the end of the valve core and the adjusting air outlet hole further limits the airflow fluctuation, and the defects of low precision, easy loosening and flow drift existing in the traditional manual knob adjustment are completely solved.

[0024] The motorcycle shock absorber capable of adjusting the angle of the air tank can be further provided with: the adjusting valve body is provided with an air outlet shell at one end facing the air outlet channel, the air outlet shell is screw-connected with the adjusting valve body, the diameter of the air outlet shell is smaller than that of the adjusting valve body, so that the air inlet cavity is formed between the outer wall of the air outlet shell and the flow adjusting cavity, the air inlet holes are equidistantly arranged on the outer wall of the air outlet shell, the adjusting air outlet hole is arranged at one end of the air outlet shell away from the adjusting valve core, the outer walls of the air outlet shell and the adjusting valve body are provided with a third sealing ring in abutting sealing with the inner wall of the mounting seat, and the fourth sealing ring in abutting sealing is arranged between the adjusting valve core and the adjusting valve body.

[0025] The technical scheme is adopted, the gas conveying shell and the adjusting valve body are connected through threads to form a detachable structure, the outer diameter of the gas conveying shell is smaller than that of the adjusting valve body, an annular gas inlet chamber is formed between the outer wall of the gas conveying shell and the flow adjusting cavity, the equidistantly distributed gas inlets are evenly arranged along the circumference of the gas conveying shell, the gas from the gas inlet passage is evenly diffused in the gas inlet chamber and then enters the inside of the gas conveying shell through the gas inlets, so that the pressure fluctuation caused by the local airflow concentration is avoided, the adjusting gas inlet is arranged at the end of the gas conveying shell away from the valve core and directly connects with the gas conveying passage, the gas enters the gas conveying shell through the gas inlets and then flows to the adjusting gas inlet along the axial direction, so that the turbulent loss is reduced, the third sealing ring between the outer wall of the gas conveying shell and the adjusting valve body is tightly arranged on the inner wall of the mounting seat to form the first sealing barrier, so that the gas leakage from the gap between the shell and the mounting seat is prevented, the fourth sealing ring between the adjusting valve core and the adjusting valve body wraps the outer wall of the valve core and always dynamically seals the inner wall of the valve body when the valve core moves axially to adjust the flow, so that the reverse leakage of the gas along the gap between the valve core and the valve body is prevented, the gas conveying shell and the adjusting valve body connected through threads are end face matched through the pre-tightening force, the assembly gap between the shells is further eliminated, the gas path is fully closed, the thread adjustment between the gas conveying shell and the adjusting valve body realizes the modular design of the gas conveying shell and the adjusting valve body, so that the disassembly and maintenance, such as the impurity cleaning in the gas conveying passage or the replacement of the sealing ring, are facilitated, the defects of the traditional welding or riveting structure are avoided, the relative position of the gas conveying shell and the adjusting valve body is finely adjusted by rotating the gas conveying shell, so that the displacement path of the gas inlet on the gas conveying shell and the adjusting valve core is accurately matched, the airflow distribution uniformity is optimized, and the local pressure fluctuation affecting the flow adjustment accuracy is avoided.

[0026] The motorcycle shock absorber capable of adjusting the angle of the gas tank can be further provided with an adjusting feedback assembly between the adjusting valve core and the adjusting valve body, the adjusting feedback assembly includes a plurality of feedback long grooves arranged on the inner wall of the adjusting valve body, a contact groove arranged on the adjusting valve core, a spring and a ball arranged in the contact groove, one end of the spring abuts against the adjusting valve core, the other end of the spring pushes the ball to move towards the inner wall of the adjusting valve body, and the spring and the ball enter or leave any feedback long groove along with the rotation of the adjusting valve core.

[0027] The technical scheme is adopted, the feedback long groove, the contact point groove, the spring and the ball are arranged between the adjusting valve core and the adjusting valve body to form an adjusting feedback assembly, when the adjusting valve core is rotated, the spring pushes the ball to tightly adhere to the inner wall of the adjusting valve body, when the adjusting valve core is rotated to the corresponding position of the feedback long groove, the ball is embedded in the long groove under the pressure of the spring, an obvious "click" touch feeling is generated, the user is prompted the current adjusting gear, the feedback long grooves are distributed along the inner wall of the adjusting valve body at equal intervals, and are matched with the pitch of the valve core threaded pair, so that the axial displacement of the valve core corresponding to each gear is consistent, the accurate gear of the flow regulation is realized, the ball is embedded in the long groove and the radial displacement of the valve core is limited through mechanical interlocking, in combination with the self-locking property of the threaded pair, the valve core is prevented from being accidentally rotated or retreated in the vibration environment, the flow parameter after the regulation is maintained stable, the pre-tightening force of the spring in the contact point groove is optimized, the feedback force when the ball is engaged with the long groove is clear, and the rotation resistance is prevented from being too large to cause the operation difficulty, the design cooperates through the tactile feedback and the mechanical locking, the problems of blind regulation caused by no feedback indication and parameter drift caused by vibration in the traditional adjusting mechanism are solved, and the adjusting accuracy and the operation efficiency are obviously improved.

[0028] The utility model is further described below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is the three-dimensional schematic view of the utility model embodiment.

[0030] Figure 2 It is the sectional view of the utility model embodiment.

[0031] Figure 3 It is the explosion of the utility model embodiment Figure 1 .

[0032] Figure 4 It is the explosion of the utility model embodiment Figure 2 .

[0033] Figure 5 It is the schematic diagram of partial internal oil circuit of the utility model embodiment.

[0034] Figure 6 It is the AA direction sectional view of the utility model embodiment. Figure 1

[0035] Figure 7 It is the explosion of the flow regulating valve of the utility model embodiment Figure 1 .

[0036] Figure 8 It is the explosion of the flow regulating valve of the utility model embodiment Figure 2 .

[0037] Figure 9 It is the enlarged view of B of the utility model embodiment. Figure 2 ​​

[0038] Figure 10 Figure 9 is a state diagram of the motorcycle shock absorber after adjustment according to the utility model embodiment. Embodiment

[0039] As shown in Figures 1-10 A motorcycle shock absorber capable of adjusting the angle of the air tank, comprising a shock absorber body 1 and an air damping device connected with the shock absorber body 1, the air damping device comprising a mounting seat 2 arranged on the shock absorber body 1 and an air tank 3 connected with the mounting seat 2, a flow regulating mechanism for supplying air to the shock absorber body 1 being arranged in the mounting seat 2, an air inlet channel 21 in communication with the air tank 3 being arranged at the input end of the flow regulating mechanism, an air outlet channel 22 for supplying air to the shock absorber body 1 being arranged at the output end of the flow regulating mechanism, an air supply channel 31 being arranged on the air tank 3, the flow regulating mechanism comprising a flow regulating cavity 20 arranged between the air inlet channel 21 and the air outlet channel 22 and a flow regulating valve 4 arranged in the flow regulating cavity 20, the flow regulating valve 4 comprising a regulating valve body 41, a regulating valve core 42 and an air outlet shell 43, the air outlet shell 43 being threadedly connected with the end of the regulating valve body 41, the outer wall of the air outlet shell 43 being smaller in diameter than the regulating valve body 42, so that an air inlet chamber 431 in communication with the air inlet channel 21 is formed between the air outlet shell 43 and the flow regulating cavity 20, a plurality of equidistantly distributed air inlet holes 432 being arranged on the surface of the air outlet shell 43, an adjusting air outlet hole 433 in communication with the air outlet channel 22 being arranged at the end of the air outlet shell 43 away from the regulating valve core 42, the regulating valve core 42 being threadedly arranged in the regulating valve body 41, and the end of the regulating valve core 42 away from the adjusting air outlet hole 433 being arranged to protrude out of the mounting seat 2, and the regulating valve core 42 being driven to move closer to or away from the adjusting air outlet hole 433 with the rotation of the flow regulating part 421, so as to block the air inlet area of the adjusting air outlet hole 433 or the air inlet holes 432, thereby achieving the flow regulating effect, and the outer walls of the air outlet shell 43 and the regulating valve body 41 are each arranged to abut against and seal against the inner wall of the mounting seat 2, and the fourth sealing ring 45 is arranged to abut against and seal against the regulating valve core 41 and the regulating valve body 41, so as to prevent air from leaking from the flow regulating cavity 20.

[0040] As shown in Figures 7-9 The regulating valve core 42 and the regulating valve body 41 are arranged to have a regulating feedback assembly therebetween, the regulating feedback assembly comprising a plurality of feedback long grooves 411 arranged on the inner wall of the regulating valve body 41, a contact groove 423 arranged on the regulating valve core 42, a spring 424 and a ball 425 arranged in the contact groove 423, one end of the spring 424 abutting against the regulating valve core 42, the other end of the spring 424 pushing the ball 425 to move towards the inner wall of the regulating valve body 41, and the ball 425 entering or leaving any feedback long groove 411 with the rotation of the regulating valve core 41, wherein the feedback long groove 411 is preferably an arc-shaped groove matched with the ball 425, so as to facilitate the sliding of the ball 425 in and out of the feedback long groove 411, thereby achieving good contact regulating feedback and regulating anti-looseness effect of the regulating valve core 42.

[0041] As shown in Figures 1-6 The mounting seat 2 and the gas tank 3 are provided with a gas tank angle adjusting mechanism, which comprises a hinged seat 23 arranged on the mounting seat 2, a hinged part 32 arranged on the gas tank 3, and a hinge shaft 5 penetrating the hinged seat 23 and the hinged part 32. The hinged seat 23 comprises a first hinged seat 231 and a second hinged seat 232 arranged in correspondence with the axis of the hinged part 32. The hinge shaft 5 cooperates with the first hinged seat 231 to form a first gas conveying cavity 51. The gas inlet channel 21 communicates with the first gas conveying cavity 51 through the first hinged seat 231. The first hinged seat 231 and the second hinged seat 232 are provided with a hinged space 233 for mounting the hinged part 32. The hinged part 32 is arranged in the hinged space 233 and abuts against the first hinged seat 231 and the second hinged seat 232. The hinge shaft 5 cooperates with the hinged part 32 to form a second gas conveying cavity 52. The inner cavity of the hinge shaft 5 is provided with a gas conveying channel 53. One end of the gas conveying channel 53 communicates with the first gas conveying cavity 51 through a first gas conveying hole 511, and the other end communicates with the second gas conveying cavity 52 through a second gas conveying hole 521. One end of the gas supply channel 31 penetrates the hinged part 32 and communicates with the second gas conveying cavity 52. The mounting seat 2 and the gas tank 3 are hinged by the hinge shaft 5, and the gas tank 3 can rotate relative to the mounting seat 2 around the hinge shaft 5.

[0042] As shown in Figures 2-6 The hinge shaft 5 is provided with an air inlet sealing structure corresponding to the first gas conveying cavity 51 and a gas supply sealing structure corresponding to the second gas conveying cavity 52. The air inlet sealing structure comprises two spaced first sealing ring installation grooves 6 arranged on the first hinged seat 231 and first sealing rings 61 arranged in the first sealing ring installation grooves 6 respectively. The first gas conveying hole 511 is arranged between the two adjacent first sealing rings 61. The gas supply sealing structure comprises two spaced second sealing ring installation grooves 62 arranged on the hinged part 32 and second sealing rings 63 arranged in the second sealing ring installation grooves 62 respectively. The second gas conveying hole 521 is arranged between the two adjacent second sealing rings 63. The hinge shaft 5 is provided with a first gas conveying ring groove 512 corresponding to the first gas conveying hole 511 and a second gas conveying sliding groove 522 corresponding to the second gas conveying hole 521. One end of the hinge shaft 5 is provided with a plug 54 for plugging the gas conveying channel 53. The plug 54 is threadedly connected with the inner wall of the hinge shaft 5, facilitating cleaning of the gas conveying channel 53. 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.

[0043] As shown in Figures 1-6 The hinge shaft 5 is a bolt structure, one end of which is provided with a nut 55, and the other end is provided with a threaded part 56. The end of the hinge shaft 5 with the threaded part 56 penetrates the hinged seat 23 and the hinged part 32 and is connected with a nut 7, thereby hingedly connecting the mounting seat 2 and the gas tank 3.

[0044] The end of the threaded part 56 is provided with a clamp 71 which is arranged against the nut 7, the hinging part 32 is provided with a first stop tooth surface 321 corresponding to the surface of the second hinging seat 232, the second hinging seat 232 is provided with a second stop tooth surface 2321 which is clamped and matched with the first stop tooth surface 321, the mounting seat 2 is provided with a T-shaped groove 24 corresponding to the second hinging seat 232, and the second hinging seat 232 is provided with a T-shaped mounting block 2322 which is mounted in the T-shaped groove 24.

[0045] The utility model discloses a motorcycle shock absorber has the following steps when adjusting the angle of the gas tank: using a tool to remove the clamp 71, and rotating the nut 7 counterclockwise, so that it moves outward along the threaded part 56 of the hinging shaft 5, and the axial locking force of the hinging shaft 5 is released, then the gas tank 3 is rotated slightly manually, so that the first stop tooth surface 321 of the hinging part 32 is disengaged from the second stop tooth surface 2321 of the second hinging seat 232, the angle is fixed, the gas tank 3 is held, and rotated around the axis direction of the hinging shaft 5, through observing the space adaptability of the mounting seat 2 and the frame, the gas tank 3 is adjusted to the target angle, when the gas tank 3 is rotated to the target angle, the first stop tooth surface 321 and the second stop tooth surface 2321 are re-engaged, the normal force generated by the tooth-shaped inclined surface and the tangential resistance preliminarily fix the angle, then the nut 7 is rotated clockwise, so that it moves along the threaded part 56 to the direction of the nut 55 of the hinging shaft 5, and then the end is sleeved into the clamp 71, the rigidity of the clamp 71 limits the back-off of the nut 7, forming a double anti-loose mechanism, the sealing state of the first sealing ring 61 and the second sealing ring 63 is checked, to ensure that the first gas inlet hole 511 and the second gas inlet hole 521 have no gas and liquid leakage after dynamic adjustment, the angle of the gas tank 3 is confirmed to be fixed and stable, and there is no space interference with the frame, and the adjustment of the angle of the gas tank is completed.

[0046] The utility model discloses a motorcycle shock absorber has the following steps when adjusting gas flow, use the tool counterclockwise rotation flow adjusting part 421, slightly release the initial locking of adjusting valve element 42, ensure that the valve element can be freely moved, clockwise or counterclockwise rotation flow adjusting part 421, drive adjusting valve element 42 along the adjusting valve body 41 axial movement through the fine thread, for example clockwise rotation: the valve element 42 is close to the adjusting gas hole 433, reduce the exposed area of air inlet hole 432, reduce gas flow shock hardness increases, and counterclockwise rotation: the valve element 42 is away from the adjusting gas hole 433, increase the exposed area of air inlet hole 432, improve gas flow shock hardness reduces, wherein every rotation angle such as 15, the ball 425 of adjusting feedback assembly is embedded in the feedback long groove 411 of adjusting valve body 41 inner wall under the pressure of spring 424, produce clear'click'touch feeling, prompt the current adjustment gear. User can judge flow regulation level according to feedback number such as 3'click'corresponding 3 gears, observe the sealing state of fourth sealing washer 45 and adjusting valve body 41, ensure that there is no gas leakage, detect the gas flow of gas delivery channel 22 through the external pressure gauge, confirm that the parameter after adjustment meets the expectation, complete the adjustment, reverse light rotation flow adjusting part 421 about 5 DEG eliminate the thread gap, utilize the meshing force of the screw pair self-locking and ball 425 and feedback long groove 411, fix the valve element position, prevent vibration and cause displacement, check the third sealing washer 44 between gas delivery shell 43 and adjusting valve body 41, ensure that there is no leakage in air inlet chamber 431, complete flow regulation function, the whole design realizes flow accurate grading regulation, tactile feedback prompt gear, prevent vibration and looseness, solve the traditional gas tank fixed angle adaptability and flow regulation rough problem, have high precision, anti-loose and operation intuitiveness, adapt complex frame layout, improve shock performance and user experience.

Claims

1. A motorcycle shock absorber with an adjustable air tank angle, comprising a shock absorber body and an air damping device connected to the shock absorber body, the air damping device comprising a mounting base disposed on the shock absorber body and an air tank connected to the mounting base, the mounting base being provided with a flow regulating mechanism for supplying air to the shock absorber body, the input end of the flow regulating mechanism being provided with an air inlet channel communicating with the air tank, and the output end being provided with an air supply channel for supplying air to the shock absorber body, the air tank being provided with an air supply channel, characterized in that: An angle adjustment mechanism for the gas tank is provided between the mounting base and the gas tank. The gas tank angle adjustment mechanism includes a hinge seat on the mounting base, a hinge part on the gas tank, and a hinge shaft passing through the hinge seat and the hinge part. The hinge shaft cooperates with the hinge seat on one side to form a first gas delivery chamber and with the hinge part to form a second gas delivery chamber. An air delivery channel is provided in the inner cavity of the hinge shaft. One end of the air delivery channel is connected to the first gas delivery chamber through a first air delivery hole, and the other end is connected to the second gas delivery chamber through a second air delivery hole. The air supply channel passes through the hinge part and is connected to the second gas delivery chamber. The air inlet channel passes through the hinge seat and is connected to the first gas delivery chamber. The mounting base and the gas tank are hinged together by the hinge shaft, allowing the gas tank to rotate relative to the mounting base around the hinge shaft.

2. The motorcycle shock absorber with adjustable air tank angle according to claim 1, characterized in that: The hinge shaft is provided with an air inlet sealing structure at the first air delivery chamber and an air supply sealing structure at the second air delivery chamber. The air inlet 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.

3. A motorcycle shock absorber with an adjustable air tank angle according to claim 2, 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, and the plug is detachably connected to the hinge shaft.

4. A motorcycle shock absorber with an adjustable air tank angle according to claim 2, 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.

5. A motorcycle shock absorber with an adjustable air tank angle according to claim 2, 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.

6. A motorcycle shock absorber with an adjustable air tank angle according to claim 5, 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.

7. A motorcycle shock absorber with an adjustable air tank angle according to claim 6, 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.

8. A motorcycle shock absorber with an adjustable air tank angle according to any one of claims 1-7, characterized in that: The flow regulation mechanism includes a flow regulation chamber disposed between the air intake channel and the air delivery channel, and a flow regulation valve installed in the flow regulation chamber. The flow regulation valve includes a regulating valve body and a regulating valve core. One end of the regulating valve body is provided with a regulating air delivery hole communicating with the air delivery channel. The end of the regulating valve core away from the regulating air delivery hole is provided with a flow regulation part exposed outside the mounting base. An air intake chamber communicating with the air intake channel is provided between the flow regulation part and the regulating air delivery hole. The surface of the regulating valve body is provided with a plurality of air intake holes that connect the air intake chamber and the regulating air delivery hole. The regulating valve core is threadedly installed in the regulating valve body and moves closer to or further away from the regulating air delivery hole as the flow regulation part rotates.

9. A motorcycle shock absorber with an adjustable air tank angle according to claim 8, characterized in that: The regulating valve body has an air supply housing at one end facing the air supply channel. The air supply housing is threadedly connected to the regulating valve body. The diameter of the air supply housing is smaller than that of the regulating valve body, so that the outer wall of the air supply housing and the flow regulating cavity form the air inlet chamber. The air inlet holes are equidistantly arranged on the outer wall of the air supply housing. The regulating air supply hole is located at the end of the air supply housing away from the regulating valve core. The outer walls of both the air supply housing and the regulating valve body are provided with a third sealing ring that abuts against the inner wall of the mounting base for sealing. A fourth sealing ring that abuts against the regulating valve core and the regulating valve body is provided.

10. A motorcycle shock absorber with an adjustable air tank angle according to claim 8, characterized in that: An adjustment feedback assembly is provided between the regulating valve core and the regulating valve body. The adjustment feedback assembly includes multiple feedback slots on the inner wall of the regulating valve body, contact slots on the regulating valve core, and springs and balls in the contact slots. One end of the spring abuts against the regulating valve core, and the other end pushes the ball to move towards the inner wall of the regulating valve body. As the regulating valve core rotates, the ball enters or leaves any of the feedback slots.

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