CN212297387U - Shock absorber - Google Patents
Shock absorber Download PDFInfo
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- CN212297387U CN212297387U CN202021960514.9U CN202021960514U CN212297387U CN 212297387 U CN212297387 U CN 212297387U CN 202021960514 U CN202021960514 U CN 202021960514U CN 212297387 U CN212297387 U CN 212297387U
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- oil seal
- oil
- hole
- seat body
- storage cylinder
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Abstract
The utility model relates to the technical field of shock absorbers, in particular to a shock absorber, which comprises an oil seal cover, an oil seal seat body and an oil storage cylinder; the oil seal cover, the oil seal seat body and the oil storage cylinder are provided with through holes along the axis; the oil seal seat body and the oil seal cover are sequentially arranged in the through hole of the oil storage cylinder from one end of the through hole of the oil storage cylinder; the oil seal seat body is in interference fit with the through hole of the oil storage cylinder through an assembling seal ring; the outer wall of the oil sealing cover is provided with an assembling external thread, and the inner wall of the through hole of the oil storage cylinder is provided with an assembling internal thread matched with the assembling external thread; the oil seal cover is abutted against the oil seal seat body. The utility model discloses can avoid oil blanket seat body and other parts direct assembly, cause the harm to the leakproofness of oil blanket seat body, also improve oil blanket dismouting efficiency simultaneously, the part maintenance and the change of being convenient for has reduced manufacturing cost.
Description
Technical Field
The utility model relates to a bumper shock absorber technical field especially relates to a bumper shock absorber.
Background
At present, oil seal seats in shock absorbers are all integrally processed, so that the oil seal seats are easily abraded in the assembling process of the oil seal seats and an oil storage cylinder, and the sealing performance between the oil seal seats and the oil storage cylinder is affected.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the shock absorber is easy to assemble and good in sealing performance.
In order to solve the technical problem, the utility model discloses a technical scheme be: a shock absorber comprises an oil seal cover, an oil seal seat body and an oil storage cylinder;
the oil seal cover, the oil seal seat body and the oil storage cylinder are provided with through holes along the axis;
the oil seal seat body and the oil seal cover are sequentially arranged in the through hole of the oil storage cylinder from one end of the through hole of the oil storage cylinder;
the oil seal seat body is in interference fit with the through hole of the oil storage cylinder through an assembling seal ring;
the outer wall of the oil sealing cover is provided with an assembling external thread, and the inner wall of the through hole of the oil storage cylinder is provided with an assembling internal thread matched with the assembling external thread;
the oil seal cover is abutted against the oil seal seat body.
In an optional embodiment, the outer wall of the oil seal seat body is provided with more than two seal ring assembling grooves along the axis direction, and the assembling seal rings are embedded in the seal ring assembling grooves.
In an optional embodiment, one end of the oil seal cover, which is far away from the oil seal seat body, is provided with a limiting table, and the outer diameter of the limiting table is larger than the inner diameter of the through hole of the oil storage cylinder.
In an optional embodiment, one end face of the oil seal cover abuts against one end face of the oil seal seat body, an assembly table is arranged on one end face of the oil seal seat body along an axis, the through hole of the oil seal cover is a stepped hole, the assembly table and the stepped hole are in clearance fit in the direction perpendicular to the axis of the oil seal cover, and the assembly table and the stepped hole are sealed through a sealing element in the direction parallel to the axis of the oil seal cover.
In an optional embodiment, the sealing element is annular, the sealing element is provided with a through hole along an axis, one end of the sealing element is provided with a first annular groove in interference fit with the assembling table, and the other end of the sealing element is provided with a second annular groove in clearance fit with the stepped hole.
In an optional embodiment, the second annular groove is provided with a second annular assembling groove on a side wall parallel to the axis of the sealing element, an annular tension spring is embedded in the second annular assembling groove, and the aperture of the through hole of the sealing element is gradually increased from one end far away from the oil seal seat body to one end close to the oil seal seat body.
In an optional embodiment, the shock absorber further comprises an oil seal piece and a supporting seat, the through hole of the oil seal seat body is a step hole, the supporting seat is in interference fit with the step hole, the oil seal piece is fixed in the step hole through the supporting seat, a third annular assembling groove is formed in the inner wall of the supporting seat, and an inner sealing ring is embedded in the third annular assembling groove.
In an optional embodiment, the shock absorber further comprises an SF-1 composite sleeve, an oil seal gasket and a buffer pad, wherein the SF-1 composite sleeve, the oil seal gasket, the oil seal part, the supporting seat and the buffer pad are sequentially installed in the step hole from one end far away from the oil seal cover to one end close to the oil seal cover.
In an optional embodiment, the shock absorber further comprises a piston rod assembly, through holes are formed in the SF-1 composite sleeve, the oil seal gasket, the oil seal part, the supporting seat and the buffer pad along the axis, and the piston rod assembly sequentially penetrates through the through holes of the sealing part, the SF-1 composite sleeve, the oil seal gasket, the oil seal part, the supporting seat and the buffer pad from one end of the through hole of the oil storage cylinder and then extends into the through hole of the oil storage cylinder.
In an alternative embodiment, the sealing element, the SF-1 composite sleeve, the oil seal and the inner sealing ring are in interference fit with the piston rod assembly.
The beneficial effects of the utility model reside in that: the utility model provides a shock absorber, including oil seal cover, oil seal seat body and an oil storage section of thick bamboo, oil seal cover, oil seal seat body and oil storage section of thick bamboo all are equipped with the through-hole for the assembly along the axis, with oil seal seat body and oil seal cover certainly the one end of the through-hole of an oil storage section of thick bamboo is packed into in proper order in the through-hole of an oil storage section of thick bamboo, compare in traditional integral oil seal seat, the utility model discloses a fall into oil seal cover and oil seal seat body and process alone respectively, oil seal seat body utilizes the assembly sealing washer to guarantee oil blanket nature, and the oil seal cover then utilizes assembly external screw thread and oil storage section of thick bamboo cooperation to lean on oil seal seat body in the through-hole of an oil storage section of thick bamboo, so both avoided oil seal seat body and other parts direct assembly, cause the harm to the leakproofness of oil seal seat body, also improved oil blanket dismouting efficiency.
Drawings
FIG. 1 is a cross-sectional view of a shock absorber according to an embodiment of the present invention;
FIG. 2 is a partial cross-sectional view of a shock absorber according to an embodiment of the present invention;
FIG. 3 is another partial cross-sectional view of a shock absorber according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a sealing member according to an embodiment of the present invention;
FIG. 5 is a partial exploded view of a shock absorber according to an embodiment of the present invention;
description of reference numerals:
1. sealing the oil cover; 11. assembling the external thread; 12. a stepped hole; 13. a screw hole; 14. a limiting table;
2. an oil seal seat body; 21. assembling a sealing ring; 211. a seal ring assembly groove; 22. an assembly table; 23. a stepped bore; 231. an annular seal groove;
3. a seal member; 31. a first annular groove; 311. a first annular assembly groove; 312. an annular skeleton; 32. a second annular groove; 321. a second annular assembly groove; 322. an annular extension spring;
4. an oil seal;
5. a supporting seat; 51. a third annular assembly groove; 52. an inner seal ring;
6. an SF-1 composite sleeve;
7. an oil seal gasket;
8. a cushion pad; 81. an annular sealing boss;
9. an oil storage cylinder; 91. assembling the internal thread;
10. a piston rod assembly.
Detailed Description
In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1 to 5, a shock absorber includes an oil seal cover, an oil seal seat body and an oil storage cylinder;
the oil seal cover, the oil seal seat body and the oil storage cylinder are provided with through holes along the axis;
the oil seal seat body and the oil seal cover are sequentially arranged in the through hole of the oil storage cylinder from one end of the through hole of the oil storage cylinder;
the oil seal seat body is in interference fit with the through hole of the oil storage cylinder through an assembling seal ring;
the outer wall of the oil sealing cover is provided with an assembling external thread, and the inner wall of the through hole of the oil storage cylinder is provided with an assembling internal thread matched with the assembling external thread;
the oil seal cover is abutted against the oil seal seat body.
From the above description, the beneficial effects of the present invention are: the utility model provides a shock absorber, including oil seal cover, oil seal seat body and an oil storage section of thick bamboo, oil seal cover, oil seal seat body and oil storage section of thick bamboo all are equipped with the through-hole for the assembly along the axis, with oil seal seat body and oil seal cover certainly the one end of the through-hole of an oil storage section of thick bamboo is packed into in proper order in the through-hole of an oil storage section of thick bamboo, compare in traditional integral oil seal seat, the utility model discloses a fall into oil seal cover and oil seal seat body and process alone respectively, oil seal seat body utilizes the assembly sealing washer to guarantee oil blanket nature, and the oil seal cover then utilizes assembly external screw thread and oil storage section of thick bamboo cooperation to lean on oil seal seat body in the through-hole of an oil storage section of thick bamboo, so both avoided oil seal seat body and other parts direct assembly, cause the harm to the leakproofness of oil seal seat body, also improved oil blanket dismouting efficiency.
Further, the outer wall of the oil seal seat body is provided with more than two sealing ring assembling grooves along the axis direction, and the assembling sealing rings are embedded in the sealing ring assembling grooves.
According to the description, the number of the sealing ring assembling grooves is selected according to the sealing requirements, and the sealing rings are installed and assembled by utilizing the sealing ring assembling grooves, so that the stability of the oil sealing structure is ensured.
Furthermore, one end, far away from the oil seal seat body, of the oil seal cover is provided with a limiting table, and the outer diameter of the limiting table is larger than the inner diameter of the through hole of the oil storage cylinder.
From the above description, the limiting table is used for limiting the matching of the oil seal cover and the oil storage cylinder, so that the structural stability is improved, and the oil seal cover, the oil seal seat body and the oil storage cylinder are prevented from being worn due to the fact that the oil seal cover is over-assembled.
Furthermore, one end face of the oil seal cover abuts against one end face of the oil seal seat body, an assembly table is arranged on one end face of the oil seal seat body along the axis, the through hole of the oil seal cover is a stepped hole, the assembly table and the stepped hole are in clearance fit in the direction perpendicular to the axis of the oil seal cover, and the assembly table and the stepped hole are sealed through a sealing element in the direction parallel to the axis of the oil seal cover.
According to the description, after the oil seal cover is assembled, one end face of the oil seal cover is attached to one end face of the oil seal seat body, the oil seal seat body is compressed and fixed in an oil cavity through the oil seal cover, the assembling table of the oil seal seat body extends into the stepped hole of the oil seal cover, the assembling table and the oil seal seat body are in clearance fit in the direction perpendicular to the axis of the oil seal cover, the oil seal seat body is prevented from being affected when the oil seal cover rotates, the assembling table and the stepped hole are sealed through the sealing element in the direction parallel to the axis of the oil seal cover, oil sealing performance between the oil seal cover and the oil seal seat body is guaranteed, and the structure is ingenious.
Further, the sealing member is cyclic annular, the sealing member is equipped with the through-hole along the axis, sealing member one end be equipped with mount table interference fit's first ring channel, the sealing member other end be equipped with shoulder hole clearance fit's second ring channel.
As can be seen from the above description, the first annular groove of the sealing element is in interference fit with the assembly table to ensure that the first annular groove and the assembly table are tightly connected, and the second annular groove of the sealing element is in clearance fit with the stepped hole to enable the oil sealing cover and the sealing element to rotate relatively.
Furthermore, the second annular groove is on a parallel with the lateral wall of the axis of the sealing element is provided with a second annular assembling groove, an annular extension spring is embedded in the second annular assembling groove, and the aperture of the through hole of the sealing element is gradually increased from the end far away from the oil seal seat body to the end close to the oil seal seat body.
According to the description, the second annular assembling groove is formed in the second annular groove and used for installing the annular stretching spring, the spring can be made of stainless steel, the spring is matched with the through hole on the inclined plane through the spring and the inner wall, the piston rod can be held tightly in advance by the stainless steel spring, and after the lip is aged, sundries such as silt and water can be prevented from entering the oil seal, so that the effectiveness of the oil seal structure is guaranteed, the service life of the oil seal is prolonged, and the oil leakage probability of the shock absorber is reduced.
Further, the bumper shock absorber still includes oil seal spare and supporting seat, the through-hole of oil seal seat body is the step hole, the supporting seat with step hole interference fit, the oil seal spare passes through the supporting seat is fixed in the step is downthehole, the inner wall of supporting seat is equipped with third annular assembly groove, third annular assembly groove is embedded to have interior sealing washer.
It can be known from the above description that the inside of the conventional oil seal seat is provided with multistage grooves and holes for assembling parts such as dust seals, oil seal pieces, cushion pads and composite sleeves, and when the oil seal is assembled, no matter from which direction the oil seal pieces are assembled, the parts such as the oil seal pieces need to be assembled inside the oil seal seat after being bent and folded, so that the parts are easily deformed and worn, and the oil sealing performance of the shock absorber is directly reduced. The utility model discloses the through-hole of oil blanket seat body adopts step hole structure, and the supporting seat utilizes inner seal circle and step hole interference fit, can make the oil blanket piece pack into the oil blanket seat body smoothly on the one hand, and on the other hand has also strengthened the leakproofness of oil blanket seat body.
Furthermore, the shock absorber further comprises an SF-1 composite sleeve, an oil seal gasket and a buffer pad, wherein the SF-1 composite sleeve, the oil seal gasket, the oil seal part, the supporting seat and the buffer pad are sequentially installed in the step hole from one end far away from the oil seal cover to one end close to the oil seal cover.
As can be seen from the above description, the SF-1 composite sleeve, the oil seal gasket, the oil seal member, the support seat and the buffer pad all play a role in ensuring the sealing performance of the oil seal seat.
Furthermore, the bumper shock absorber still includes the piston rod subassembly, SF-1 composite sleeve, oil seal gasket, oil seal spare, supporting seat and cushion all are equipped with the through-hole along the axis, the piston rod subassembly certainly the one end of the through-hole of an oil storage section of thick bamboo passes in proper order stretch into behind the through-hole of sealing member, SF-1 composite sleeve, oil seal gasket, oil seal spare, supporting seat and cushion in the through-hole of an oil storage section of thick bamboo.
According to the description, the piston rod assembly sequentially penetrates through the sealing element, the SF-1 composite sleeve, the oil seal gasket, the oil seal piece, the supporting seat and the buffer pad from one end of the through hole of the oil storage cylinder and then extends into the through hole of the oil storage cylinder, so that a complete shock absorber sealing structure is formed.
Furthermore, the sealing element, the SF-1 composite sleeve, the oil seal element and the inner sealing ring are in interference fit with the piston rod assembly.
According to the description, the sealing element, the SF-1 composite sleeve, the oil seal element and the inner sealing ring are in interference fit with the piston rod assembly, and the effectiveness of the oil seal structure is further improved.
Referring to fig. 1 to 5, a first embodiment of the present invention is: a shock absorber comprises an oil seal cover 1, an oil seal seat body 2 and an oil storage cylinder 9;
the oil seal cover 1, the oil seal seat body 2 and the oil storage cylinder 9 are all provided with through holes along the axis;
the oil seal seat body 2 and the oil seal cover 1 are sequentially arranged in the through hole of the oil storage cylinder 9 from one end of the through hole of the oil storage cylinder 9;
the oil seal seat body 2 is in interference fit with the through hole of the oil storage cylinder 9 through an assembling seal ring 21;
the outer wall of the oil seal cover 1 is provided with an assembling external thread 11, and the inner wall of the through hole of the oil storage cylinder 9 is provided with an assembling internal thread 91 matched with the assembling external thread 11;
the oil seal cover 1 is abutted against the oil seal seat body 2.
Referring to fig. 1 to 5, a second embodiment of the present invention is different from the first embodiment in that: the outer wall of oil blanket seat body 2 is equipped with more than two sealing washer assembly grooves 211 along the axis direction, assembly sealing washer 21 inlay in the sealing washer assembly groove 211. One end of the oil seal cover 1, which is far away from the oil seal seat body 2, is provided with a limiting table 14, and the outer diameter of the limiting table 14 is larger than the inner diameter of the through hole of the oil storage cylinder 9. The limiting table 14 is provided with screw holes 13 around the through hole. One end face of the oil seal cover 1 abuts against one end face of the oil seal seat body 2, an assembly table 22 is arranged on one end face of the oil seal seat body 2 along the axis, a through hole of the oil seal cover 1 is a stepped hole 12, the assembly table 22 is in clearance fit with the stepped hole 12 in the direction perpendicular to the axis of the oil seal cover 1, and the assembly table 22 is sealed with the stepped hole 12 through a sealing element 3 in the direction parallel to the axis of the oil seal cover 1. The sealing element 3 is made of rubber, and the sealing element 3 is in a compressed state. Sealing member 3 is cyclic annular, sealing member 3 is equipped with the through-hole along the axis, sealing member 3 one end be equipped with assembly table 22 interference fit's first ring channel 31, the sealing member 3 other end be equipped with shoulder hole 12 clearance fit's second ring channel 32. The reentrant corner department of first ring channel 31 is equipped with first annular assembly groove 311, first annular assembly groove 311 is embedded have with assembly table 22 interference fit's annular skeleton 312. The second annular groove 32 is parallel to a second annular assembling groove 321 is formed in the side wall of the axis of the sealing element 3, an annular extension spring 322 is embedded in the second annular assembling groove 321, and the aperture of the through hole of the sealing element 3 is gradually increased from one end far away from the oil seal seat body 2 to one end close to the oil seal seat body 2. The included angle range of the inner wall of the through hole and the axis of the annular rubber part is 65-85 degrees. The shock absorber still includes oil seal 4 and supporting seat 5, the through-hole of oil seal seat body 2 is step hole 23, supporting seat 5 with step hole 23 interference fit, oil seal 4 passes through supporting seat 5 is fixed in the step hole 23, the inner wall of supporting seat 5 is equipped with third annular assembly groove 51, third annular assembly groove 51 is embedded to have interior sealing washer 52. The shock absorber further comprises an SF-1 composite sleeve 6, an oil seal gasket 7 and a buffer pad 8, wherein the SF-1 composite sleeve 6, the oil seal gasket 7, the oil seal part 4, the supporting seat 5 and the buffer pad 8 are sequentially arranged in the step hole 23 from one end far away from the oil seal cover 1 to one end close to the oil seal cover 1. The inner wall of the stepped hole 23 is provided with an annular sealing groove 231, and the outer wall of the cushion pad 8 is provided with an annular sealing boss 81 matched with the annular sealing groove 231. The lateral wall of blotter 8 is equipped with the opening. The bumper shock absorber still includes piston rod subassembly 10, SF-1 composite set 6, oil blanket piece 7, oil blanket piece 4, supporting seat 5 and cushion 8 all are equipped with the through-hole along the axis, piston rod subassembly 10 certainly the one end of the through-hole of oil storage section of thick bamboo 9 passes in proper order sealing member 3, SF-1 composite set 6, oil blanket piece 7, oil blanket piece 4, supporting seat 5 and cushion 8 stretch into behind the through-hole of oil storage section of thick bamboo 9 in the through-hole. The sealing element 3, the SF-1 composite sleeve 6, the oil seal 4 and the inner sealing ring 52 are in interference fit with the piston rod assembly 10.
To sum up, the utility model provides a shock absorber, including oil seal cover, oil seal seat body and an oil storage section of thick bamboo, oil seal cover, oil seal seat body and oil storage section of thick bamboo all are equipped with the through-hole for the assembly along the axis, with oil seal seat body and oil seal cover certainly the one end of the through-hole of an oil storage section of thick bamboo is packed into in proper order in the through-hole of an oil storage section of thick bamboo, compare in traditional integral oil seal seat, the utility model discloses a fall into oil seal cover and oil seal seat body and process alone respectively, oil seal seat body utilizes the assembly sealing washer to guarantee oil blanket nature, and the oil seal cover then utilizes assembly external screw thread and oil storage section of thick bamboo cooperation to support to lean on oil seal seat body in the through-hole of an oil storage section of thick bamboo, both avoided oil seal seat body and other parts direct assembly like this, cause the harm to the leakproofness of oil seal seat body, also improved oil blanket dismouting efficiency.
The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.
Claims (10)
1. A shock absorber is characterized by comprising an oil seal cover, an oil seal seat body and an oil storage cylinder;
the oil seal cover, the oil seal seat body and the oil storage cylinder are provided with through holes along the axis;
the oil seal seat body and the oil seal cover are sequentially arranged in the through hole of the oil storage cylinder from one end of the through hole of the oil storage cylinder;
the oil seal seat body is in interference fit with the through hole of the oil storage cylinder through an assembling seal ring;
the outer wall of the oil sealing cover is provided with an assembling external thread, and the inner wall of the through hole of the oil storage cylinder is provided with an assembling internal thread matched with the assembling external thread;
the oil seal cover is abutted against the oil seal seat body.
2. The shock absorber according to claim 1, wherein the outer wall of the oil seal seat body is provided with more than two seal ring assembling grooves along the axial direction, and the assembling seal rings are embedded in the seal ring assembling grooves.
3. The shock absorber according to claim 1, wherein a limiting table is arranged at one end of the oil seal cover, which is far away from the oil seal seat body, and the outer diameter of the limiting table is larger than the inner diameter of the through hole of the oil storage cylinder.
4. The shock absorber according to claim 1, wherein an end face of the oil seal cover abuts against an end face of the oil seal holder body, the end face of the oil seal holder body is provided with an assembly table along an axis, the through hole of the oil seal cover is a stepped hole, the assembly table and the stepped hole are in clearance fit in a direction perpendicular to the axis of the oil seal cover, and the assembly table and the stepped hole are sealed by a sealing member in a direction parallel to the axis of the oil seal cover.
5. The shock absorber according to claim 4, wherein the sealing member is annular, the sealing member is provided with a through hole along an axis, one end of the sealing member is provided with a first annular groove which is in interference fit with the mounting table, and the other end of the sealing member is provided with a second annular groove which is in clearance fit with the stepped hole.
6. The shock absorber according to claim 5, wherein the second annular groove is provided with a second annular fitting groove on a side wall parallel to an axis of the seal member, an annular tension spring is embedded in the second annular fitting groove, and a hole diameter of the through hole of the seal member gradually increases from one end away from the oil seal housing body to one end close to the oil seal housing body.
7. The shock absorber according to claim 4, further comprising an oil seal and a support seat, wherein the through hole of the oil seal body is a stepped hole, the support seat is in interference fit with the stepped hole, the oil seal is fixed in the stepped hole through the support seat, the inner wall of the support seat is provided with a third annular assembly groove, and an inner seal ring is embedded in the third annular assembly groove.
8. The shock absorber according to claim 7, further comprising an SF-1 composite sleeve, an oil seal gasket, an oil seal, a support seat and a cushion pad, wherein the SF-1 composite sleeve, the oil seal gasket, the oil seal, the support seat and the cushion pad are sequentially installed in the stepped hole from one end far away from the oil seal cover to one end close to the oil seal cover.
9. The shock absorber according to claim 8, further comprising a piston rod assembly, wherein the SF-1 composite sleeve, the oil seal gasket, the oil seal member, the support seat and the cushion pad are provided with through holes along an axis, and the piston rod assembly sequentially penetrates through the through holes of the sealing member, the SF-1 composite sleeve, the oil seal gasket, the oil seal member, the support seat and the cushion pad from one end of the through hole of the oil storage cylinder and then extends into the through hole of the oil storage cylinder.
10. The shock absorber according to claim 9, wherein said seal, SF-1 composite sleeve, oil seal and inner seal are all interference fit with said piston rod assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021960514.9U CN212297387U (en) | 2020-09-09 | 2020-09-09 | Shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021960514.9U CN212297387U (en) | 2020-09-09 | 2020-09-09 | Shock absorber |
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| CN212297387U true CN212297387U (en) | 2021-01-05 |
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| CN202021960514.9U Active CN212297387U (en) | 2020-09-09 | 2020-09-09 | Shock absorber |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111963613A (en) * | 2020-09-09 | 2020-11-20 | 福建金汉科技有限公司 | Shock absorber |
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2020
- 2020-09-09 CN CN202021960514.9U patent/CN212297387U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111963613A (en) * | 2020-09-09 | 2020-11-20 | 福建金汉科技有限公司 | Shock absorber |
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