CN217713446U

CN217713446U - Shock absorber and scooter

Info

Publication number: CN217713446U
Application number: CN202221383860.4U
Authority: CN
Inventors: 魏林院; 韦活成; 王灿; 吕荣辉
Original assignee: Ninebot Changzhou Technology Co Ltd
Current assignee: Ninebot Changzhou Technology Co Ltd
Priority date: 2022-06-06
Filing date: 2022-06-06
Publication date: 2022-11-01
Anticipated expiration: 2032-06-06
Also published as: WO2023236782A1

Abstract

The utility model discloses a shock absorber and a scooter, which comprises a sleeve body, a first shaft body, a first assembly and a second assembly, wherein a first cavity is arranged in the sleeve body and is suitable for storing fluid; the first shaft body is provided with a first piston part, the first shaft body is slidably matched in the first cavity through the first piston part, the first piston part divides the first cavity into a first fluid cavity and a second fluid cavity, a fluid channel is arranged in the first shaft body, the first fluid cavity and the second fluid cavity are communicated through the fluid channel, and the fluid channel is suitable for realizing reciprocating transmission of fluid in the first fluid cavity and fluid in the second fluid cavity; the first component is arranged at one end of the sleeve body and sleeved on the outer peripheral side of the first shaft body, and the first component is suitable for sealing and plugging one side of the first cavity; the second component is arranged at the other end of the sleeve body and is suitable for sealing and plugging the other side of the first cavity. The utility model discloses a shock absorber can strengthen the shock attenuation buffering of car of riding instead of walk, has promoted the travelling comfort of riding.

Description

Shock absorber and scooter

Technical Field

The utility model relates to a technical field that moves away to avoid possible earthquakes specifically, relates to a car of riding instead of walk of shock absorber and applied this shock absorber.

Background

In order to meet the demand of short-distance riding instead of walk in cities, the scooter such as an electric scooter, an electric balance car and the like is produced and is favored by more and more consumers, but the scooter in the related art has the problems of obvious vibration of a vehicle body and poor riding comfort when the scooter encounters a damaged road, a hollow road surface and a speed bump.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent.

Therefore, the embodiment of the utility model provides a shock absorber is provided, this shock absorber can strengthen the shock attenuation buffering of car of riding instead of walk, has promoted the travelling comfort of riding.

The embodiment of the utility model provides a still provide the car of riding instead of walk of using above-mentioned shock absorber.

The utility model discloses shock absorber includes: the sleeve body is internally provided with a first cavity, and the first cavity is suitable for storing fluid; the first shaft body is provided with a first piston part, the first shaft body is slidably matched in the first cavity through the first piston part, the first piston part divides the first cavity into a first fluid cavity and a second fluid cavity, a fluid channel is arranged in the first shaft body, the first fluid cavity and the second fluid cavity are communicated through the fluid channel, and the fluid channel is suitable for realizing reciprocating transmission of fluid in the first fluid cavity and fluid in the second fluid cavity so as to buffer compression or extension of the sleeve body and the first shaft body; the first assembly is arranged at one end of the sleeve body and sleeved on the outer peripheral side of the first shaft body, and the first assembly is suitable for sealing and blocking one side of the first cavity; the second assembly is arranged at the other end of the sleeve body and is suitable for sealing and plugging the other side of the first cavity.

The utility model discloses shock absorber can strengthen the shock attenuation buffering of car of riding instead of walk, has promoted the travelling comfort of riding.

In some embodiments, the shock absorber includes a first elastic member, one end of the first elastic member is connected to or abutted against the first shaft, the other end of the first elastic member is connected to or abutted against the second component, and the first elastic member is adapted to buffer compression and extension of the sleeve body and the first shaft.

In some embodiments, the first assembly includes a first sealing element, a first stopping element and a second stopping element, the first stopping element is disposed on an end surface of the sleeve body, the second stopping element is disposed in the sleeve body, and the first sealing element is sandwiched between the first stopping element and the second stopping element and seals the first shaft body and the sleeve body.

In some embodiments, the first assembly includes a second elastic member, the second stopper is slidably disposed in the sleeve, the second stopper is located between the second elastic member and the first sealing member, one end of the second elastic member abuts against the second stopper, the other end of the second elastic member abuts against the inner wall of the sleeve, and the second elastic member is elastically contactable with the first piston portion.

In some embodiments, the second assembly includes a plug and a second seal, at least a portion of the plug being fitted within the sleeve, the second seal sealing around between the plug and the sleeve.

In some embodiments, the second assembly includes a gas nozzle disposed at the plug and communicating with the first cavity, the gas nozzle being adapted to inject gas into the first cavity.

In some embodiments, the first shaft body is provided with a second cavity and a first hole, the second cavity and the first hole form the fluid passage, the second assembly includes a second shaft body provided with a second piston portion, the second shaft body is slidably fitted in the second cavity through the second piston portion, a communication passage is provided in the second shaft body, the first fluid cavity is formed between the first piston portion and the first assembly, and the second fluid cavity is formed in the first piston portion and the second assembly, the communication passage communicates the second fluid cavity and the second cavity.

In some embodiments, the second assembly includes a third shaft body having a third cavity and a second hole formed therein, a portion of the third cavity and the second hole forming the communicating passage, the third shaft body being position-adjustably fitted within the third cavity, the third shaft body being adapted to adjust the size of the flow-through cross-section of the second hole.

In some embodiments, the second assembly includes a plug and a driving member, the plug is sealingly engaged in the sleeve, the second shaft is connected to the plug, a threaded hole is formed in the plug, the third shaft is threadedly engaged in the threaded hole of the plug, the driving member is rotatably disposed on the plug, and the driving member is connected to the third shaft in a rotation-stopping manner.

In some embodiments, the plug is provided with a third stopping member, and the third stopping member is suitable for stopping the driving member to prevent the driving member and the plug from being separated.

In some embodiments, the second assembly includes a third elastic member and a ball, the third elastic member and the ball are disposed on one of the plug and the driving member, the other of the plug and the driving member is provided with a plurality of circumferentially spaced limiting grooves, and the third elastic member is adapted to push the ball into the corresponding limiting groove when the driving member rotates.

In some embodiments, the outer circumference of the sheath body is provided with a limiting part.

The scooter of the embodiment of the present invention comprises a shock absorber, wherein the shock absorber is the shock absorber in any of the above embodiments.

In some embodiments, the scooter comprises a front fork and a stem, the shock absorber is connected between the front fork and the stem, one of the housing and the first axle is adapted to be connected to the front fork and the other is adapted to be connected to the stem.

In some embodiments, the shock absorber includes a connecting assembly, the connecting assembly is disposed on the first shaft, and the first shaft is fixedly connected to the front fork through the connecting assembly.

In some embodiments, the connecting assembly includes a nut member, a spacer and a spacer, the spacer is disposed on the first shaft, the spacer is disposed between the nut member and the spacer, the front fork is adapted to be clamped and fixed between the spacer and the spacer, one of the spacer and the front fork is provided with a protrusion, the other is provided with a groove, and the protrusion is adapted to fit in the groove to limit the relative displacement between the first shaft and the front fork.

Drawings

FIG. 1 is a schematic view of an extension of a shock absorber according to an embodiment of the present invention.

FIG. 2 is a first cross-sectional view of the shock absorber of FIG. 1.

FIG. 3 is a second cross-sectional view of the shock absorber shown in FIG. 1.

Fig. 4 is a schematic view of the compression of a shock absorber according to an embodiment of the present invention.

FIG. 5 is a cross-sectional schematic view of the shock absorber of FIG. 4.

FIG. 6 is a schematic cross-sectional view of an extension of a shock absorber according to another embodiment of the present invention.

Fig. 7 is a schematic cross-sectional view of an extension of a shock absorber according to still another embodiment of the present invention.

Fig. 8 is a schematic cross-sectional view of an extension of a shock absorber according to yet another embodiment of the present invention.

FIG. 9 is a schematic view of a second component of the shock absorber of FIG. 8.

Fig. 10 is a schematic cross-sectional view of the second assembly of fig. 9.

Fig. 11 is an enlarged schematic view of the drive member of fig. 10.

FIG. 12 is a cross-sectional view of the compression of the shock absorber of FIG. 8.

Fig. 13 is a schematic view illustrating the installation of the shock absorber of the scooter according to the embodiment of the present invention.

Fig. 14 is a schematic sectional view illustrating the installation of a shock absorber of a scooter according to an embodiment of the present invention.

Fig. 15 is a schematic sectional view illustrating the installation of a shock absorber of a scooter according to another embodiment of the present invention.

Reference numerals are as follows:

a shock absorber 100;

a sleeve body 1; a first chamber 11; a second fluid chamber 111; a first fluid chamber 112;

a first shaft body 2; a first piston portion 21; a fluid passage 22; a first hole 221; a second chamber 222;

a connecting assembly 3; a gasket 31; a nut member 32; a cushion block 33;

a first component 4; a first seal 41; first stopper 42; a second stopper 43; a second elastic member 44;

a second component 5; a plug 51; a second seal 52; an air nozzle 53; a second shaft body 54; a second piston portion 541; a communication passage 55; a third chamber 551; a second hole 552; a third shaft body 56; a driving member 57; an adjusting lever 571; a knob 572; a third stop 58; the balls 59; a third elastic member 510;

a first elastic member 6;

a stopper 7;

a front fork 200.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are exemplary intended for explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1 to 5, a shock absorber 100 according to an embodiment of the present invention includes a sleeve body 1, a first shaft body 2, a first component 4 and a second component 5.

The cover body 1 is internally provided with a first cavity 11, and the first cavity 11 is suitable for storing fluid. As shown in fig. 1 to 3, the covering 1 may be a circular tube, and the covering 1 may extend in the up-down direction. The inner cavity of the sleeve body 1 forms a first cavity 11, and the first cavity 11 also extends along the up-and-down direction. The first chamber 11 is used for storing fluid, which may be gas or a mixture of hydraulic oil and gas.

The first shaft body 2 is provided with a first piston part 21, the first shaft body 2 is slidably fitted in the first cavity 11 through the first piston part 21, the first piston part 21 divides the first cavity 11 into a first fluid cavity 112 and a second fluid cavity 111, a fluid passage 22 is arranged in the first shaft body 2, the first fluid cavity 112 and the second fluid cavity 111 are communicated through the fluid passage 22, and the fluid passage 22 is suitable for realizing reciprocating transmission of fluid in the first fluid cavity 112 and fluid in the second fluid cavity 111 so as to buffer compression or extension of the sleeve body 1 and the first shaft body 2.

Specifically, as shown in fig. 2 and 3, the first shaft body 2 may be substantially in the shape of a circular shaft, and the first shaft body 2 may be a hollow shaft. The first shaft body 2 is fitted in the first cavity 11 of the sleeve body 1 and can reciprocate in the first cavity 11 in the up-down direction.

The right-hand member of first axis body 2 is equipped with first piston portion 21, and the right-hand member of first axis body 2 can be equipped with one section major diameter section, and the periphery side of major diameter section is equipped with the annular, can imbed in the annular has the uide bushing, and the material of uide bushing can be rubber. The guide sleeve can realize the sealing between the first shaft body 2 and the inner wall of the sleeve body 1. The large diameter section and the guide sleeve form a first piston portion 21.

In use, the first piston part 21 fits within the first chamber 11 and the first piston part 21 is able to reciprocate within the first chamber 11. Since the first piston portion 21 is sealingly fitted in the housing body 1, the first piston portion 21 can divide the first chamber 11 into two independent movable chambers, i.e., a first fluid chamber 112 and a second fluid chamber 111, respectively. Wherein the first fluid chamber 112 is located at the lower side of the first piston portion 21, the first fluid chamber 112 is formed by an annular space between the first shaft body 2 and the housing body 1, the second fluid chamber 111 is located at the upper side of the second piston portion 541, and the second fluid chamber 111 is formed by the first chamber 11 at the upper side of the first piston portion 21.

The fluid passage 22 is provided in the first shaft body 2, and the fluid passage 22 has two ports, one of which may be located at the upper end of the first shaft body 2 and communicate with the second fluid chamber 111, and the other of which may be located on the outer peripheral side of the first shaft body 2 and communicate with the first fluid chamber 112.

The first component 4 is arranged at one end of the sleeve body 1 and sleeved on the outer peripheral side of the first shaft body 2, the first component 4 is suitable for sealing and blocking one side of the first cavity 11, the second component 5 is arranged at the other end of the sleeve body 1, and the second component 5 is suitable for sealing and blocking the other side of the first cavity 11.

Specifically, as shown in fig. 2, the first component 4 is disposed at the lower end of the sleeve body 1, the first component 4 is substantially annular, the first component 4 can seal and seal the lower side of the first cavity 11, the second component 5 is disposed at the upper end of the sleeve body 1, the second component 5 can be inserted into the sleeve body 1, and the second component 5 can seal and seal the upper side of the first cavity 11. The arrangement of the first and second components 4, 5 is such that the first and second

fluid chambers

112, 111 are sealed chambers.

When the shock absorber 100 of this embodiment is used, the first shaft 2 can be connected and fixed with a first component, the first component can be a vertical tube of the scooter, the second shaft 54 can be connected and fixed with a second component, and the second component can also be a front fork 200 of the scooter. When the bicycle is driven to a hollow road surface, the first shaft body 2 and the sleeve body 1 can move relatively, and the relative movement can be divided into compression and extension.

When the first shaft 2 and the cover 1 are extended, as shown in fig. 2 and 3, the first fluid chamber 112 is compressed, and the second fluid chamber 111 is enlarged, at this time, the fluid in the first fluid chamber 112 can flow into the second fluid chamber 111 through the fluid passage 22, and the fluid can play a role of buffering during the compression process, thereby achieving the shock absorption of the shock absorber 100.

When the first shaft 2 and the sleeve body 1 are compressed, as shown in fig. 4 and 5, the first fluid chamber 112 becomes larger, the second fluid chamber 111 is compressed, and at this time, the fluid in the second fluid chamber 111 can flow into the first fluid chamber 112 through the fluid channel 22, and the fluid can play a role of buffering during the compression process, so as to achieve the shock absorption of the shock absorber 100.

It should be noted that the fluid in the first chamber 11 is preferably a mixture of hydraulic oil and gas. The gas has a good buffer function, and the hydraulic oil can be clamped between the first piston part 21 and the first component 4 or between the first piston part 21 and the second component 5, so that the first piston part 21 and the sleeve body 1 are prevented from rigidly touching, and a bottom-touching prevention effect is achieved.

The utility model discloses shock absorber 100 can install on the car of riding instead of walk during the use to can strengthen the shock attenuation buffering of the car of riding instead of walk, weaken the vibration of the car of riding instead of walk, promote the security and the travelling comfort of riding.

In some embodiments, the shock absorber 100 includes a first elastic member 6, one end of the first elastic member 6 is connected to or abutted against the first shaft 2, and the other end of the first elastic member 6 is connected to or abutted against the second component 5, and the first elastic member 6 is adapted to cushion the compression and extension of the housing body 1 and the first shaft 2.

Specifically, as shown in fig. 2, 3 and 5, the first elastic member 6 may be a spring, and the first elastic member 6 may be disposed in the second fluid chamber 111 and sandwiched between the first piston portion 21 and the second assembly 5, wherein a lower end of the first elastic member 6 abuts against the first piston portion 21, and an upper end of the first elastic member 6 abuts against the second assembly 5. Thus, when the second fluid chamber 111 is compressed, the first elastic member 6 can be compressed to store energy, and the cushioning effect can be further enhanced.

It will be appreciated that in other embodiments, the first resilient member 6 may be a tension spring, the first resilient member 6 may be connected between the first piston portion 21 and the second assembly 5, and the first resilient member 6 may be stretched to store energy when the first fluid chamber 112 is compressed, thereby providing a cushioning effect.

Alternatively, as shown in FIG. 6, the first elastic member 6 may not be provided in the shock absorber 100, and the damping is achieved only by fluid.

In some embodiments, the first assembly 4 includes a first sealing element 41, a first stopping element 42 and a second stopping element 43, the first stopping element 42 is disposed on an end surface of the sleeve body 1, the second stopping element 43 is disposed in the sleeve body 1, and the first sealing element 41 is sandwiched between the first stopping element 42 and the second stopping element 43 and seals the ring around the first shaft body 2 and the sleeve body 1.

Specifically, as shown in fig. 3 and 5, the first stopping member 42 may be a blocking piece, and the first stopping member 42 is annular and is fixed on the lower end surface of the sleeve body 1 by a fastening member such as a screw. The inner side of the lower part of the sleeve body 1 can be provided with an annular step, the second stopping piece 43 can be a copper sleeve, the second stopping piece 43 is sleeved on the outer peripheral side of the first shaft body 2, and the upper end of the second stopping piece 43 is stopped with the annular step in the sleeve body 1.

The first sealing member 41 may be an oil seal, the first sealing member 41 is sealed and wound between the first shaft body 2 and the sleeve body 1, and the first sealing member 41 is sandwiched between the first stopper 42 and the second stopper 43. Therefore, the sealing and blocking of the lower side of the first fluid cavity 112 can be realized, fluid leakage is avoided, and the buffering effect is ensured.

In some embodiments, the first assembly 4 includes a second elastic member 44, the second stopper 43 is slidably disposed in the sheath body 1, the second stopper 43 is located between the second elastic member 44 and the first sealing element 41, one end of the second elastic member 44 abuts against the second stopper 43, the other end of the second elastic member 44 abuts against the inner wall of the sheath body 1, and the second elastic member 44 can elastically contact with the first piston portion 21.

Specifically, as shown in fig. 3 and 5, the second elastic member 44 may be a wave spring, the second elastic member 44 is sleeved on the outer periphery of the first shaft body 2 and located inside the sleeve body 1, the upper end of the second elastic member 44 may abut against an annular step of the sleeve body 1, and the lower end of the second elastic member 44 may abut against the second stopper 43.

When the first shaft body 2 and the sleeve body 1 are extended, the lower end of the first piston portion 21 may contact the second elastic member 44, and the second elastic member 44 may further achieve buffering of the first piston portion 21. In addition, the second stopper 43 presses the first sealing member 41 after being acted by the second elastic member 44, and the first sealing member 41 is deformed in the radial direction, so that the sealing effect can be enhanced.

In some embodiments, the second component 5 comprises a plug 51 and a second seal 52, at least part of the plug 51 being fitted inside the envelope 1, the second seal 52 sealing around between the plug 51 and the envelope 1.

Specifically, as shown in fig. 3 and 5, a plug 51 may be fixed to the upper end of the sheath 1 and embedded in the sheath 1, for example, the plug 51 may be connected to the sheath 1 by welding or screwing. The outer circumference of the plug 51 may be provided with a ring-shaped groove, the second sealing member 52 may be a sealing ring, and the second sealing member 52 may be fitted in the ring-shaped groove of the plug 51. This makes it possible to seal the upper side of the second fluid chamber 111.

In some embodiments, the second assembly 5 comprises a gas nozzle 53, the gas nozzle 53 being disposed in the plug 51 and communicating with the first chamber 11, the gas nozzle 53 being adapted to inject gas into the first chamber 11.

Specifically, as shown in fig. 6 and 7, a mounting hole may be formed in the plug 51, the air tap 53 may be fixed in the mounting hole of the plug 51, and the air tap 53 may include a housing and a valve core. The second fluid chamber 111 can be filled with gas through the gas nozzle 53, which facilitates the replenishment of the gas and the adjustment of the damping force of the shock absorber 100.

In some embodiments, the first shaft body 2 is provided with the second cavity 222 and the first hole 221, the second cavity 222 and the first hole 221 form the fluid passage 22, the second assembly 5 includes the second shaft body 54, the second shaft body 54 is provided with the second piston portion 541, the second shaft body 54 is slidably fitted in the second cavity 222 through the second piston portion 541, the second shaft body 54 is provided with the communication passage 55, the first fluid chamber 112 is formed between the first piston portion 21 and the first assembly 4, the second fluid chamber 111 is formed between the first piston portion 21 and the second assembly 5, and the communication passage 55 communicates the second fluid chamber 111 and the second cavity 222.

Specifically, as shown in fig. 3, a second cavity 222 and a first hole 221 are provided in the first shaft body 2, the second cavity 222 extends substantially in the up-down direction, an opening of the second cavity 222 faces the upper side, the first hole 221 extends substantially in the radial direction (left-right direction) of the first shaft body 2, the first hole 221 and the second cavity 222 are communicated, and the first hole 221 and the second cavity 222 form the fluid passage 22.

As shown in fig. 8, the second shaft 54 may be integrally provided with the plug 51, the second piston portion 541 is provided at the lower end of the second shaft 54, the second piston portion 541 is also formed by a large diameter section and a guide sleeve, and the structure of the second piston portion 541 is substantially the same as that of the first piston portion 21, which will not be described herein again. The second piston portion 541 is sealingly fitted in the second chamber 222 of the first shaft body 2 and slidably moves along the extending direction of the second chamber 222.

The communication passage 55 is provided in the second shaft body 54, and the communication passage 55 may be provided with two ports, one of which is provided at the lower end of the second shaft body 54 and communicates with the second chamber 222; another port may be provided in the outer peripheral wall of the second shaft 54 and in communication with the second fluid chamber 111, between the second piston portion 541 and the plug 51.

When the shock absorber 100 is compressed, as shown in fig. 12, when the second piston portion 541 is located below the first hole 221, the fluid in the first fluid chamber 112 may sequentially flow into the second chamber 222 of the first shaft body 2 through the annular space between the second shaft body 54 and the first shaft body 2 and the communication passage 55, or may flow into the second fluid chamber 111 through the annular space between the second shaft body 54 and the first shaft body 2. After the second piston 541 moves to the upper side of the first hole 221, as shown in fig. 8, the fluid in the first fluid chamber 112 may directly flow into the second chamber 222 of the first shaft 2, and the fluid in the second chamber 222 may flow into the second fluid chamber 111 through the communication channel 55.

When the shock absorber 100 is expanded, as shown in FIG. 8, at this time, the second piston portion 541 is located above the first hole 221, and the fluid in the second fluid chamber 111 can flow into the first fluid chamber 112 through the communication passage 55 and the fluid passage 22 in order. When the second piston portion 541 moves to the lower side of the first hole 221, as shown in fig. 12, the fluid in the second chamber 222 may flow into the second fluid chamber 111 through the communication passage 55, and the fluid in the second fluid chamber 111 may flow into the first fluid chamber 112 through the first hole 221.

Therefore, on one hand, the guiding performance of the shock absorber 100 in compression or extension can be enhanced, the driving stability is ensured, and on the other hand, the pressure of the fluid can be changed, which is beneficial to enhancing the buffering effect.

In some embodiments, the second assembly 5 includes a third shaft 56, a third cavity 551 and a second bore 552 are provided in the second shaft 54, a portion of the third cavity 551 and the second bore 552 form the communication channel 55, the third shaft 56 is adjustably engaged in the third cavity 551, and the third shaft 56 is adapted to adjust the size of the flow cross-section of the second bore 552.

Specifically, as shown in fig. 8 and 10, the third cavity 551 is provided in the second shaft body 54, the opening of the third cavity 551 faces the lower side, and the third cavity 551 extends substantially in the up-down direction. The second hole 552 extends generally in the radial direction (left-right direction) of the second shaft body 54, and the second hole 552 and the third cavity 551 communicate and form the communication passage 55.

Third axis body 56 can be for shaft-like regulation stopper, and third axis body 56 cooperation can reciprocate in third cavity 551 and in third cavity 551, and the in-process of removal, third axis body 56 can shelter from second hole 552 to can realize the through-flow sectional adjustment to second hole 552, and then can realize the adjustment to cushioning effect, satisfy different crowds' operation requirement.

In some embodiments, the second assembly 5 comprises a plug 51 and a driving member 57, the plug 51 is hermetically fitted in the sleeve body 1, the second shaft 54 is connected with the plug 51, a threaded hole is formed in the plug 51, the third shaft 56 is threadedly fitted in the threaded hole of the plug 51, the driving member 57 is rotatably disposed on the plug 51, and the driving member 57 is connected with the third shaft 56 in a rotation-stopping manner.

Specifically, as shown in fig. 9 to 11, the threaded hole in the plug 51 extends substantially in the vertical direction, the upper end of the third shaft 56 may be threadedly engaged with the threaded hole, the upper end of the third shaft 56 may be provided with a rotation stopping groove, the driving member 57 may be rotatably engaged in the plug 51, and the lower end of the driving member 57 may be provided with a rotation stopping portion, which is engaged in the rotation stopping groove. During the use, through rotating driving piece 57, driving piece 57 can drive third axis body 56 and rotate, and under the effect of screw thread, driving piece 57 can remove in the upper and lower direction to the realization is to the regulation of the through-flow cross section size of second hole 552.

In some embodiments, the plug 51 is provided with a third stopping member 58, and the third stopping member 58 is adapted to stop the driving member 57 to prevent the driving member 57 and the plug 51 from being separated. As shown in fig. 8, the third stopping member 58 may be a wire spring, an annular groove may be formed on the inner peripheral wall of the plug 51, the third stopping member 58 is annular and is inserted into the annular groove of the plug 51, and the third stopping member 58 may be stopped by the driving member 57, so that the driving member 57 is prevented from being disengaged from the upper side of the plug 51.

In some embodiments, the second assembly 5 includes a third elastic member 510 and a ball 59, the third elastic member 510 and the ball 59 are disposed on one of the plug 51 and the driving member 57, the other of the plug 51 and the driving member 57 is disposed with a plurality of circumferentially spaced retaining grooves, and the third elastic member 510 is adapted to push the ball 59 into the corresponding retaining groove when the driving member 57 rotates.

Specifically, as shown in fig. 11, the driving member 57 may be divided into two parts, which are an adjusting lever 571 and a knob 572, respectively, the adjusting lever 571 is used for engaging with the third shaft 56 in a rotation-stop manner, and the knob 572 is located outside the plug 51 and is used for driving the adjusting lever 571 to rotate. The knob 572 may be provided with a fitting groove, the third elastic member 510 may be a spring, the third elastic member 510 may be fitted in the fitting groove, the ball 59 may be a steel ball, and the ball 59 may be provided at a notch of the fitting groove. A plurality of limiting grooves may be formed in the upper end surface of the plug 51, and the limiting grooves are arranged along the circumferential direction of the plug 51 at intervals.

When the knob 572 rotates, the balls 59 may respectively correspond to the plurality of limiting grooves, and the third elastic member 510 may push the balls 59 into the limiting grooves, thereby enhancing the damping effect and the locking effect.

Alternatively, the retaining groove may be a semicircular groove.

In some embodiments, the outer periphery of the sheath 1 is provided with a stopper 7. As shown in fig. 2, the stopper 7 may be integrally formed with the cover 1. The limiting part 7 can be a bulge on the outer peripheral wall of the sleeve body 1. The rotation range of the sleeve body 1 can be limited by the stop of the corresponding part.

The following describes the scooter of the embodiment of the present invention.

The scooter of the embodiment of the present invention includes a shock absorber 100, and the shock absorber 100 may be the shock absorber 100 described in the above embodiments. The scooter can be an electric scooter, an electric bicycle, an electric balance car, etc., and certainly can also be other scooters which need to use the shock absorber 100.

In some embodiments, the scooter comprises a front fork 200 and a stem, the shock absorber 100 is connected between the front fork 200 and the stem, and one of the housing 1 and the first shaft 2 is adapted to be connected to the front fork 200 and the other is adapted to be connected to the stem. As shown in fig. 13 to 15, a stem (not shown) may be provided above the front fork 200, the shock absorber 100 may be connected between the stem and the front fork 200, the first shaft body 2 of the shock absorber 100 may be connected to the front fork 200, and the cover body 1 of the shock absorber 100 may be connected to the stem. In other embodiments, the first shaft 2 can be connected to the front fork 200, and the sheath 1 can be connected to a riser.

In some embodiments, the shock absorber 100 includes a connecting assembly 3, the connecting assembly 3 is disposed on the first shaft body 2, and the first shaft body 2 is connected and fixed to the front fork 200 through the connecting assembly 3. As shown in fig. 2, the connecting member 3 may be disposed at the lower end of the first shaft body 2, and the connecting member 3 may connect and fix the first shaft body 2 and the front fork 200, thereby facilitating the installation of the shock absorber 100 and the front fork 200.

In some embodiments, the connecting assembly 3 includes a nut member 32, a spacer 31 and a spacer 33, the spacer 33 is disposed on the first shaft body 2, the spacer 31 is disposed between the nut member 32 and the spacer 33, the front fork 200 is adapted to be clamped and fixed between the spacer 31 and the spacer 33, one of the spacer 33 and the front fork 200 is provided with a protrusion, and the other is provided with a groove, the protrusion is adapted to fit in the groove to limit the relative displacement of the first shaft body 2 and the front fork 200.

Specifically, as shown in fig. 3, the spacer 31 and the spacer 33 are both annular, the spacer 33 may be fixed to the outer peripheral side of the first shaft body 2, and the spacer 33 may have certain elasticity. The nut member 32 may be screw-fitted on the outer peripheral side of the first shaft body 2, and the spacer 31 may be located between the nut member 32 and the spacer 33. As shown in fig. 14 and 15, when being installed, the front fork 200 can be clamped between the spacer 31 and the spacer 33, and the front fork 200 can be locked by the nut member 32, thereby facilitating the connection and fixation. The washer 31 can stop the washer 31, so that the rotation in the circumferential direction can be restricted.

The cushion block 33 may be provided with a protrusion, the front fork 200 may be provided with a groove, and the protrusion may be fitted in the groove, so that the degree of freedom of the cushion block 33 and the front fork 200 may be restricted, and the compactness of assembly may be improved.

It will be appreciated that in other embodiments, the protrusions may be provided on the front fork 200 and the recesses may be provided on the spacer 33.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless expressly specified otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. A shock absorber, comprising:

the sleeve comprises a sleeve body, wherein a first cavity is arranged in the sleeve body and is suitable for storing fluid;

a first shaft body provided with a first piston portion, the first shaft body being slidably fitted in the first cavity through the first piston portion, the first piston portion dividing the first cavity into a first fluid chamber and a second fluid chamber, the first shaft body being provided therein with a fluid passage through which the first fluid chamber and the second fluid chamber communicate, the fluid passage being adapted to enable a reciprocating conveyance of a fluid in the first fluid chamber and a fluid in the second fluid chamber to cushion compression or extension of the sheath body and the first shaft body;

the first assembly is arranged at one end of the sleeve body and sleeved on the outer peripheral side of the first shaft body, and the first assembly is suitable for sealing and blocking one side of the first cavity;

the second assembly is arranged at the other end of the sleeve body and is suitable for sealing and plugging the other side of the first cavity.

2. A shock absorber according to claim 1, comprising a first elastic member, one end of the first elastic member being connected to or abutting against the first axle body, the other end of the first elastic member being connected to or abutting against the second assembly, the first elastic member being adapted to cushion compression and extension of the cover body and the first axle body.

3. The shock absorber as set forth in claim 1, wherein said first assembly includes a first sealing member, a first stopper and a second stopper, said first stopper being disposed on an end surface of said housing body, said second stopper being disposed within said housing body, said first sealing member being sandwiched between said first stopper and said second stopper and sealing said first shaft body and said housing body.

4. A shock absorber according to claim 3, wherein said first assembly includes a second elastic member, said second stopping member is slidably disposed in said cover, said second stopping member is located between said second elastic member and said first sealing member, one end of said second elastic member abuts against said second stopping member, the other end of said second elastic member abuts against an inner wall of said cover, and said second elastic member is elastically contactable with said first piston portion.

5. A shock absorber as set forth in claim 1 wherein said second assembly includes a plug and a second seal, at least a portion of said plug being fitted within said housing, said second seal sealing between said plug and said housing.

6. The shock absorber according to claim 5, wherein said second assembly includes a gas nipple disposed at said plug and communicating with said first cavity, said gas nipple adapted to inject gas into said first cavity.

7. A shock absorber according to claim 1, wherein the first shaft body is provided with a second chamber and a first hole which form the fluid passage, the second assembly includes a second shaft body provided with a second piston portion through which the second shaft body is slidably fitted in the second chamber, the second shaft body is provided with a communication passage therein, the first fluid chamber is formed between the first piston portion and the first assembly, the second fluid chamber is formed between the first piston portion and the second assembly, and the communication passage communicates the second fluid chamber with the second chamber.

8. A shock absorber according to claim 7, wherein said second assembly comprises a third shaft body, a third cavity and a second hole are provided in said second shaft body, a portion of said third cavity and said second hole form said communicating passage, said third shaft body is position-adjustably fitted in said third cavity, and said third shaft body is adapted to adjust the size of the flow cross-section of said second hole.

9. The shock absorber according to claim 8, wherein the second assembly comprises a plug and a driving member, the plug is sealingly engaged in the sleeve, the second shaft is connected to the plug, a threaded hole is formed in the plug, the third shaft is threadedly engaged in the threaded hole of the plug, the driving member is rotatably disposed in the plug, and the driving member is connected to the third shaft in a rotation-stop manner.

10. The shock absorber of claim 9, wherein the bottom plug is provided with a third stop member adapted to stop the driving member to prevent the driving member and the bottom plug from separating.

11. A shock absorber according to claim 9, wherein the second assembly includes a third elastic member and a ball, the third elastic member and the ball are disposed on one of the plug and the driving member, the other of the plug and the driving member is provided with a plurality of circumferentially spaced-apart limiting grooves, and the third elastic member is adapted to push the ball into the corresponding limiting groove when the driving member rotates.

12. A shock absorber according to any one of claims 1-11, wherein a stopper is provided on the outer peripheral side of the sheath body.

13. A scooter, characterized in that it comprises a shock absorber, which is a shock absorber according to any one of claims 1-12.

14. The scooter of claim 13 including a front fork and a riser, said shock absorber being connected between said front fork and said riser, one of said housing and said first axle being adapted to be connected to said front fork and the other of said housing and said first axle being adapted to be connected to said riser.

15. The scooter of claim 14 wherein the shock absorber includes a coupling assembly, the coupling assembly being disposed on the first axle, the first axle being fixedly coupled to the front fork via the coupling assembly.

16. The scooter of claim 15 wherein the coupling assembly includes a nut member, a spacer and a spacer, the spacer being disposed on the first shaft, the spacer being disposed between the nut member and the spacer, the front fork being adapted to be clamped between the spacer and the spacer, one of the spacer and the front fork having a protrusion and the other having a recess, the protrusion being adapted to fit within the recess to limit relative displacement of the first shaft and the front fork.