CN211525321U - Shock absorber - Google Patents

Abstract

The utility model belongs to the technical field of the bumper shock absorber, a bumper shock absorber is disclosed, include: an upper bracket; a lower bracket; the upper half part of the shock absorber; a lower half of a shock absorber; the shock absorber comprises an upper support, a shock absorber upper half and a shock absorber lower half, wherein the shock absorber upper half and the shock absorber lower half are respectively arranged on the upper support and the shock absorber upper half, the shock absorber lower half is arranged on the lower support, the shock absorber upper half and the shock absorber lower half are respectively arranged on the lower support, one end of the ball pin is rotatably connected in the upper support or the lower support, and the other end of the ball pin is fixed on. Has the advantages that: the upper bracket and the lower bracket are connected with the shock absorber through the ball pin, the ball pin can rotate at any angle in the running process of the vehicle, and the other stress conditions of the shock absorber are avoided or improved when the vehicle tilts left and right, pitches forwards and backwards and the like.

Description

Shock absorber

Technical Field

The utility model relates to a bumper shock absorber technical field especially relates to a bumper shock absorber.

Background

At present, a shock absorber for commercial vehicles usually adopts a double-acting cylinder type shock absorber form, is arranged between a vehicle frame and a front shaft and is mostly connected by a pin shaft.

The traditional pin shaft connection mode of the shock absorber often generates the connection pin shaft which is not strong in the running process of a vehicle, and further causes the problems of oil leakage, abrasion, abnormal sound and the like of the shock absorber. The above problems affect the cleanliness, beauty and reliability of the vehicle, affect the use feeling of the user, and reduce the overall quality of the vehicle.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a shock absorber to the solution often produces connecting pin axle other strength at the vehicle in-process of traveling, leads to the problem of shock absorber oil leak, wearing and tearing, abnormal sound scheduling problem.

To achieve the purpose, the utility model adopts the following technical proposal:

a shock absorber, comprising:

an upper bracket;

a lower bracket;

the upper half part of the shock absorber;

a lower half of a shock absorber;

ball pins respectively disposed between the upper bracket and the upper half portion of the shock absorber and between the lower bracket and the lower half portion of the shock absorber,

the first end of the ball pin is rotatably connected in the upper support or the lower support, and the second end of the ball pin is fixedly connected with the corresponding upper half part or the corresponding lower half part of the shock absorber.

The upper bracket and the lower bracket are connected with the shock absorber through the ball pin, the ball pin can rotate at any angle in the running process of the vehicle, the other stiffness of the shock absorber is avoided or improved under the working conditions of left-right side tilting, front-back pitching and the like of the vehicle, and the problems of abrasion, oil leakage, abnormal sound and the like caused by the other stiffness of the shock absorber are reduced; the appearance neatness and the aesthetic measure of improvement bumper shock absorber and whole car bring better use for the user and experience, promote the whole quality of vehicle.

As a preferable scheme of the shock absorber, the first end of the ball stud is a truncated sphere, the second end of the ball stud is provided with an external thread and an oblong hole penetrating through the external thread along the radial direction, and the truncated sphere is provided with an external spherical surface and a top plane.

As a preferred scheme of the shock absorber, the upper bracket and the lower bracket are both provided with a revolving body structure, and the inner wall of the revolving body structure is provided with a cylindrical surface, an inner spherical surface, a clamping groove and an inner conical surface along the axial direction.

As a preferable scheme of the shock absorber, the cylindrical surfaces of the upper bracket and the lower bracket are sleeved with ball bowls, and the outer spherical surfaces are slidably arranged on the ball bowls and the inner spherical surfaces.

As a preferable scheme of the shock absorber, a top cover is arranged at one end of each of the upper support and the lower support corresponding to the truncated sphere, and a space for containing lubricating oil is formed between the top cover and the top plane.

As a preferable scheme of the shock absorber, the top cover comprises a top cover body and a top cover bulge, the top cover body is annular and is connected with a top plane of the ball bowl, and the top cover bulge is arranged at the center of the top cover body and corresponds to the top plane.

As a preferable scheme of the shock absorber, the top plane of the ball bowl is flush with the end surface of the upper bracket and the end surface of the lower bracket, which are correspondingly connected, and the top cover body is simultaneously connected with the end surface of the upper bracket and the end surface of the lower bracket, which are correspondingly connected with the top cover body.

As a preferable scheme of the shock absorber, an annular groove is formed between the cylindrical surface and the inner spherical surface, and a seal ring capable of being connected with the truncated sphere in a sealing manner is arranged on the annular groove.

As a preferable scheme of the shock absorber, an outer conical surface and a transition conical surface are further arranged between the truncated sphere of the ball stud and the external thread, the outer conical surface is arranged on one side of the transition conical surface close to the external thread, the outer conical surface and the transition conical surface are both arranged outside the revolving body structure, and a sheath is arranged on the surface of the transition conical surface.

As a preferable mode of the above damper, the damper further includes a dust cover, and one end of the dust cover is pressed against the outer tapered surface and the other end is pressed against the outer peripheral surface of the revolving structure.

The utility model has the advantages that: the upper bracket and the lower bracket are connected with the shock absorber through the ball pin, the ball pin can rotate at any angle in the running process of the vehicle, the other stiffness of the shock absorber is avoided or improved under the working conditions of left-right side tilting, front-back pitching and the like of the vehicle, and the problems of abrasion, oil leakage, abnormal sound and the like caused by the other stiffness of the shock absorber are reduced; the appearance neatness and the aesthetic measure of improvement bumper shock absorber and whole car bring better use for the user and experience, promote the whole quality of vehicle.

Drawings

Fig. 1 is a schematic structural diagram of a shock absorber provided by the present invention;

fig. 2 is a schematic structural view of the upper bracket assembly of the present invention;

fig. 3 is a cross-sectional view of the upper bracket assembly of the present invention;

fig. 4 is a schematic structural view of the lower bracket assembly of the present invention;

fig. 5 is a cross-sectional view of the lower bracket assembly of the present invention;

fig. 6 is a schematic structural view of the upper bracket of the present invention;

fig. 7 is a cross-sectional view of an upper bracket of the present invention from one perspective;

fig. 8 is a cross-sectional view of another perspective of the upper bracket of the present invention;

fig. 9 is a schematic structural view of the lower bracket of the present invention;

fig. 10 is a cross-sectional view from one perspective of the lower bracket of the present invention;

fig. 11 is a cross-sectional view of another perspective of the lower bracket of the present invention;

fig. 12 is a schematic structural view of the sealing ring of the present invention;

fig. 13 is a cross-sectional view of a seal ring of the present invention;

fig. 14 is a schematic structural view of the ball stud of the present invention;

fig. 15 is a schematic structural view of the ball bowl of the present invention;

fig. 16 is a schematic structural view of the top cover of the present invention;

fig. 17 is a cross-sectional view of a top cover of the present invention;

fig. 18 is a schematic structural view of the sheath of the present invention;

FIG. 19 is a schematic view of the root snap ring of the present invention;

FIG. 20 is a cross-sectional view of the root snap ring of the present invention;

fig. 21 is a schematic structural view of the dust cover of the present invention;

fig. 22 is a cross-sectional view of the dust cap of the present invention;

fig. 23 is a schematic view of the shock absorber of the present invention when mounted on a vehicle.

In the figure:

1. an upper bracket; 2. a lower bracket; 3. a seal ring; 4. a ball stud; 5. a ball bowl; 6. a top cover; 7. a sheath; 8. a root snap ring; 9. a dust cover; 10. a conical surface snap ring; 11. the upper half part of the shock absorber; 12. a lower half of a shock absorber; 13. a nut; 14. a cotter pin; 15. a frame; 16. a front axle; 17. a leaf spring;

1a, an upper bracket body; 1b, an upper bracket end surface; 1c, an upper bracket connecting part; 1d, an inner cylindrical surface of the upper bracket; 1e, an inner spherical surface of the upper bracket; 1f, an upper support sealing ring clamping groove; 1g, an inner conical surface of an upper bracket; 1h, an upper bracket dust cover mounting part;

2a, a lower bracket body; 2b, lower bracket end faces; 2c, a lower bracket connecting part; 2d, an inner cylindrical surface of the lower support; 2e, an inner spherical surface of the lower support; 2f, a lower support sealing ring clamping groove; 2g, lower bracket inner conical surface; 2h, a lower bracket dust cover mounting part;

3a, a sealing ring body; 3b, a matching surface in the sealing ring; 3c, a telescopic cavity;

4a, an outer spherical surface; 4b, an outer conical surface; 4c, a transition conical surface; 4d, a top plane; 4e, external threads; 4f, long round holes;

5a, an outer cylindrical surface of the ball bowl; 5b, an inner spherical surface of the ball bowl; 5c, a top plane of the ball bowl;

6a, a top cover body; 6b, a top cover bulge; 6c, a top cover groove; 6d, a top cover bottom plane;

7a, a sheath body; 7b, a sheath inner conical surface;

8a, the outer wall of the snap ring; 8b, inner wall of the snap ring; 8c, a snap ring end face; 8d, a door-shaped clamping cavity;

9a, a drum-shaped body; 9b, root grip; 9c, a conical surface clamping part; 9d, inner conical surfaces of dust covers; 9e, the dust cover mating end face.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and 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 thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The utility model provides a shock absorber, as shown in fig. 1 to 22, the shock absorber includes upper bracket 1, lower carriage 2, sealing washer 3, bulb round pin 4, ball bowl 5, top cap 6, sheath 7, root snap ring 8, dust cover 9, conical surface snap ring 10, the first half 11 of shock absorber and shock absorber lower half 12.

As shown in fig. 6 to 8, the upper bracket 1 includes an upper bracket body 1a, the upper bracket body 1a is a revolving structure, one end of the upper bracket body 1a is provided with an upper bracket end surface 1b, and the upper bracket end surface 1b is used for mounting the top cover 6; an upper bracket connecting part 1c is arranged at one end of the upper bracket end surface 1b far away from the upper bracket body 1a, and the upper bracket connecting part 1c is used for being connected with the frame 15; the inner wall of the upper bracket body 1a is provided with an upper bracket inner cylindrical surface 1d and an upper bracket inner spherical surface 1e, and the upper bracket inner spherical surface 1e is used for being matched with an outer spherical surface 4a of the ball pin 4; an upper bracket sealing ring clamping groove 1f is formed between the inner cylindrical surface 1d of the upper bracket and the inner spherical surface 1e of the upper bracket, and the upper bracket sealing ring clamping groove 1f is used for installing a sealing ring 3; an upper bracket inner conical surface 1g is arranged on one side, away from an inner cylindrical surface 1d of the upper bracket, of the upper bracket sealing ring clamping groove 1f, and the upper bracket inner conical surface 1g is used for providing a space for swinging of the ball pin 4 during rotation; an upper bracket dust cover mounting part 1h is arranged on the periphery of the upper bracket body 1a, and the upper bracket dust cover mounting part 1h is used for mounting a dust cover 9.

As shown in fig. 2 and 3, the seal ring 3 is fitted into the upper bracket seal ring slot 1f of the upper bracket 1; the ball stud 4 is arranged in the upper bracket body 1a and is matched with the inner spherical surface 1e of the upper bracket, and the outer conical surface 4b of the ball stud 4 faces one side of the inner conical surface 1g of the upper bracket 1; covering the ball bowl 5 on the outer spherical surface 4a of the ball pin 4, wherein the top plane 5c of the ball bowl is flush with the end surface 1b of the upper bracket 1; the top cover 6 is fixed on the outer side of the ball bowl 5, lubricating grease can be stored due to the fact that the top cover 6 is provided with the top cover groove 6c, and the top cover 6 is fixed to play a role in sealing the lubricating grease; the sheath 7 is sleeved on the transition conical surface 4c of the ball pin 4; the root snap ring 8 is arranged on an upper bracket dust cover mounting part 1h of the upper bracket 1; the root clamping part 9b of the dust cover 9 is arranged in the door-shaped clamping cavity 8d of the root clamping ring 8 to realize fixation; the inner cone surface 9d of the dust cover 9 is matched with the outer cone surface 4b of the ball stud 4; the conical snap ring 10 is mounted in the conical clamping portion 9c of the dust cover 9 to achieve a conical seal.

It should be noted that, as shown in fig. 4 to 5 and fig. 9 to 11, the structure of the lower bracket 2 is similar to that of the upper bracket 1, the lower bracket 2 includes a lower bracket body 2a, the lower bracket body 2a is a revolving body structure, one end of the lower bracket body 2a is provided with a lower bracket end face 2b, and the lower bracket end face 2b is used for installing the top cover 6; one end of the lower bracket end surface 2b, which is far away from the lower bracket body 2a, is provided with a lower bracket connecting part 2c, and the lower bracket connecting part 2c is arranged between the front shaft 16 and the steel plate spring 17; the inner wall of the lower bracket body 2a is provided with a lower bracket inner cylindrical surface 2d and a lower bracket inner spherical surface 2e, and the lower bracket inner spherical surface 2e is used for being matched with an outer spherical surface 4a of the ball pin 4; a lower bracket sealing ring clamping groove 2f is formed between the inner cylindrical surface 2d of the lower bracket and the inner spherical surface 2e of the lower bracket, and the lower bracket sealing ring clamping groove 2f is used for installing a sealing ring 3; a lower bracket inner conical surface 2g is arranged on one side of the lower bracket sealing ring clamping groove 2f, which is far away from the inner cylindrical surface 2d of the lower bracket, and the lower bracket inner conical surface 2g is used for providing a space for the swinging of the ball pin 4 during rotation; a lower bracket dust cover mounting part 2h is provided on the outer periphery of the lower bracket body 2a, and the lower bracket dust cover mounting part 2h is used for mounting a dust cover 9.

The lower bracket 2 is different from the upper bracket 1 in that a lower bracket coupling part 2c of the lower bracket 2 is installed between the front axle 16 and the leaf spring 17.

Further, as shown in fig. 12 and 13, the seal ring 3 includes a seal ring body 3a, and the seal ring body 3a is fitted in an upper support seal ring clamping groove 1f of the upper support 1 and a lower support seal ring clamping groove 2f of the lower support 2; a sealing ring inner matching surface 3b is arranged on the coaxial inner side of the sealing ring body 3a, and the sealing ring inner matching surface 3b is used for matching with an outer spherical surface 4a of the ball pin 4; the sealing ring body 3a and the sealing ring inner fitting surface 3b jointly form a telescopic cavity 3c, so that the telescopic deformation is realized, and the sealing effect is improved.

Further, as shown in fig. 14, both ends of the ball stud 4 are respectively provided with a truncated sphere and an external thread 4e, the truncated sphere has an external spherical surface 4a and a top plane 4d, a transition conical surface 4c and an external conical surface 4b are provided between the truncated sphere and the external thread 4e, and the transition conical surface 4c is used for assembling the sheath 7; one side of the transition conical surface 4c close to the external thread 4e is provided with an external conical surface 4b, and the external conical surface 4b is used for being connected with the upper half part 11 of the shock absorber and the lower half part 12 of the shock absorber; the external thread 4e is used for being in threaded connection with the nut 13; the external thread 4e is provided with a long round hole 4f, and the long round hole 4f is used for assembling a cotter 14; the top plane 4d and the top cover groove 6c of the top cover 6 form a space for storing grease.

Further, as shown in fig. 15, the ball bowl 5 includes a ball bowl outer cylindrical surface 5a, and the ball bowl outer cylindrical surface 5a is used for being matched with the upper support inner cylindrical surface 1d of the upper support 1 and the lower support inner cylindrical surface 2d of the lower support 2; the inner side of the outer cylindrical surface 5a of the ball bowl is provided with an inner spherical surface 5b of the ball bowl, and the inner spherical surface 5b of the ball bowl is used for being matched with an outer spherical surface 4a of the ball pin 4; the end face of the outer cylindrical surface 5a of the ball bowl is provided with a ball bowl top plane 5c, and the ball bowl top plane 5c is used for being matched with the top cover 6.

Further, as shown in fig. 16 and 17, the top cover 6 includes a ring-shaped top cover body 6 a; the top cover body 6a is provided with a top cover bottom plane 6d, the top cover bottom plane 6d is used for being in sealing connection with the ball bowl top plane 5c, and in another preferred embodiment, the top cover bottom plane 6d is also matched with the upper support end surface 1b of the upper support 1 and the lower support end surface 2b of the lower support 2 to realize top cover sealing on lubricating grease; the center of the top cover body 6a is provided with a top cover bulge 6b, and a top cover groove 6c is formed below the top cover bulge 6b and used for storing lubricating grease.

Further, as shown in fig. 18, the sheath body 7a of the sheath 7 is a conical surface, and a sheath inner conical surface 7b is provided with the sheath body 7a, and the sheath inner conical surface 7b is used for matching with the transition conical surface 4c of the ball stud 4.

Further, as shown in fig. 19 and 20, the root snap ring 8 has a snap ring outer wall 8a and a snap ring inner wall 8b, and a snap ring end surface 8c is designed on an end surface perpendicular to the axis of the snap ring outer wall 8a and the snap ring inner wall 8b, and the snap ring inner wall 8b and the stop ring end surface 8c are used for being matched with the upper bracket dust cover mounting part 1h of the upper bracket 1 and the lower bracket dust cover mounting part 2h of the lower bracket 2; the outer wall 8a of the clamping ring, the inner wall 8b of the clamping ring and the end face 8c of the clamping ring form a door-shaped clamping cavity 8d, and the door-shaped clamping cavity 8d is used for being matched with the root clamping part 9b of the dust cover 9.

Further, as shown in fig. 21 and 22, the dust cover 9 includes a root grip portion 9b, a drum body 9a, and a tapered grip portion 9c arranged in the axial direction, the root grip portion 9b being for fitting with the upper bracket dust cover mounting portion 1h of the upper bracket 1 and the lower bracket dust cover mounting portion 2h of the lower bracket 2 and effecting connection of the dust cover 9; the conical clamping part 9c is used for installing the conical clamping ring 10; the inner side of the conical surface clamping part 9c is provided with a dust cover inner conical surface 9d, and the dust cover inner conical surface 9d is used for being matched with the outer conical surface 4b of the ball stud 4, so that the dust cover is sealed; the dust cover 9 is further provided with a dust cover matching end surface 9e, and the dust cover matching end surface 9e is connected with the cavity bottom of the door-shaped clamping cavity 8d so as to realize the sealing effect of the dust cover 9.

The utility model discloses an assembly process does: respectively installing the sealing rings 3 into an upper support sealing ring clamping groove 1f of the upper support 1 and a lower support sealing ring clamping groove 2f of the lower support 2; the outer conical surface 4b of the ball pin 4 penetrates from the ends of the inner cylindrical surface 1d of the upper support 1 and the inner cylindrical surface 2d of the lower support 2, so that the outer spherical surface 4a of the ball pin 4 is matched with the inner spherical surface 1e of the upper support 1 and the inner spherical surface 2e of the lower support 2, the outer spherical surface 4a of the ball pin 4 is tightly attached to the inner matching surface 3b of the sealing ring 3, and the function of sealing grease is realized; penetrating a ball bowl 5 from the ends of an upper support inner cylindrical surface 1d of an upper support 1 and a lower support inner cylindrical surface 2d of a lower support 2, enabling a ball bowl outer cylindrical surface 5a to be matched with the upper support inner cylindrical surface 1d of the upper support 1 and the lower support inner cylindrical surface 2d of the lower support 2, enabling a ball bowl inner spherical surface 5b to be matched with an outer spherical surface 4a of a ball pin 4, and enabling the outer spherical surface 4a of the ball pin 4 to rotate in an upper support inner spherical surface 1e of the upper support 1 and a lower support inner spherical surface 2e of the lower support 2; matching a top cover bottom plane 6d of the top cover 6 with an upper support end surface 1b of the upper support 1 and a lower support end surface 2b of the lower support 2, so that a top cover bulge 6b of the top cover 6 and a top plane 4d of the ball pin 4 form an oil storage cavity for storing lubricating grease; the sheath 7 penetrates through one end of the outer conical surface 4b of the ball pin 4, so that conical surface matching is realized between the inner conical surface 7b of the sheath 7 and the transition conical surface 4c of the ball pin 4, the sheath 7 plays a role in protecting in the rotating process of the ball pin 4, collision between the transition conical surface 4c of the ball pin 4 and the inner conical surfaces 1g of the upper bracket 1 and 2g of the lower bracket 2 is avoided, and noise is reduced; connecting the inner wall 8b of the clamping ring of the root clamping ring 8 with an upper bracket dust cover mounting part 1h of the upper bracket 1 and a lower bracket dust cover mounting part 2h of the lower bracket 2; penetrating a dust cover 9 from the end of the outer conical surface 4b of the ball stud 4, and assembling a root clamping part 9b of the dust cover 9 into a portal clamping cavity 8d of a root clamping ring 8 to fix the dust cover 9 with the upper bracket 1 and the lower bracket 2; the conical snap ring 10 is inserted from the end of the outer conical surface 4b of the ball stud 4 and sleeved into the conical clamping part 9c of the dust cover 9, so that the inner conical surface 9d of the dust cover 9 is matched with the outer conical surface 4b of the ball stud 4, and the conical sealing of the dust cover 9 is realized.

With continued reference to fig. 23, when the shock absorber of the present invention is mounted on the vehicle, one end of the upper bracket 1 is connected to the frame 15, one end of the lower bracket 2 is mounted between the front axle 16 and the leaf spring 17, the ball stud outer conical surfaces 4b of the two ball studs 4 are respectively mounted on the upper half 11 of the shock absorber and the lower half 12 of the shock absorber, and the nuts 13 are screwed down and locked by the cotter pins 14.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. A shock absorber, comprising:

an upper bracket (1);

a lower bracket (2);

a shock absorber upper half (11);

a lower shock absorber half (12);

ball stud (4), said ball stud (4) being arranged between said upper bracket (1) and said upper shock absorber half (11) and between said lower bracket (2) and said lower shock absorber half (12), respectively, wherein,

the first end of the ball pin (4) is rotatably connected into the upper support (1) or the lower support (2), and the second end of the ball pin (4) is fixedly connected with the corresponding upper half part (11) or lower half part (12) of the shock absorber.

2. Shock absorber according to claim 1, wherein the first end of the ball stud (4) is a truncated sphere, the second end of the ball stud (4) being provided with an external thread (4e) and an oblong hole (4f) radially penetrating the external thread (4e), the truncated sphere being provided with an outer spherical surface (4a) and a top plane (4 d).

3. The shock absorber according to claim 2, wherein the upper bracket (1) and the lower bracket (2) are provided with a revolving body structure, and the inner wall of the revolving body structure is provided with a cylindrical surface, an inner spherical surface, a clamping groove and an inner conical surface along the axial direction.

4. The shock absorber according to claim 3, characterized in that a ball cup (5) is sleeved in the cylindrical surface of the upper bracket (1) and the lower bracket (2), and the outer spherical surface (4a) is slidably arranged on the ball cup (5) and the inner spherical surface.

5. The shock absorber according to claim 4, characterized in that the upper bracket (1) and the lower bracket (2) are each provided with a top cover (6) at the end corresponding to the truncated sphere, the top cover (6) and the top plane (4d) forming a space for containing lubricating oil therebetween.

6. The shock absorber according to claim 5, wherein the top cover (6) comprises a top cover body (6a) and a top cover protrusion (6b), the top cover body (6a) is annular and is connected with a top spherical bowl plane (5c) of the spherical bowl (5), and the top cover protrusion (6b) is arranged at the center of the top cover body (6a) and corresponds to the top plane (4 d).

7. The shock absorber according to claim 6, wherein the bowl top plane (5c) is flush with the upper bracket end face (1b) of the upper bracket (1) and the lower bracket end face (2b) of the lower bracket (2) which are correspondingly connected, and the top cover body (6a) is simultaneously connected with the upper bracket end face (1b) and the lower bracket end face (2b) which are correspondingly connected.

8. A shock absorber according to claim 3, wherein an annular groove is provided between said cylindrical surface and said inner spherical surface, said annular groove being provided with a sealing ring (3) capable of sealingly engaging said truncated ball.

9. The shock absorber according to claim 8, wherein an outer conical surface (4b) and a transition conical surface (4c) are further arranged between the truncated sphere of the ball stud (4) and the external thread (4e), the outer conical surface (4b) is arranged on one side of the transition conical surface (4c) close to the external thread (4e), the outer conical surface (4b) and the transition conical surface (4c) are both arranged outside the revolution body structure, and a jacket (7) is arranged on the surface of the transition conical surface (4 c).

10. The shock absorber according to claim 9, further comprising a dust cover (9), wherein one end of the dust cover (9) is pressed against the outer tapered surface (4b), and the other end is pressed against the outer peripheral surface of the solid of revolution structure.

Images