CN114033827A - Positioning guide device and large-cylinder-diameter double-cylinder shock absorber - Google Patents
Positioning guide device and large-cylinder-diameter double-cylinder shock absorber Download PDFInfo
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- CN114033827A CN114033827A CN202111121141.5A CN202111121141A CN114033827A CN 114033827 A CN114033827 A CN 114033827A CN 202111121141 A CN202111121141 A CN 202111121141A CN 114033827 A CN114033827 A CN 114033827A
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- valve seat
- cylinder
- positioning ring
- bottom valve
- positioning
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
- F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
- F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
- F16F9/18—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
- F16F9/185—Bitubular units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/36—Special sealings, including sealings or guides for piston-rods
- F16F9/366—Special sealings, including sealings or guides for piston-rods functioning as guide only, e.g. bushings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention relates to the technical field of shock absorbers, and particularly discloses: a positioning guide device comprises a circular positioning ring provided with an inner hole and a bulge part arranged on the outer side of the positioning ring; the bulge is L-shaped and comprises an outward turning plate and a connecting plate, wherein the connecting plate is connected with the outer side of the positioning ring, and the outward turning plate is arranged on one side, far away from the positioning ring, of the connecting plate. And discloses a large-bore double-cylinder shock absorber; the invention can effectively ensure that the working cylinder does not incline after being put into the liquid storage cylinder; the automatic alignment can be realized in the assembling process, the condition that the working cylinder is inclined is avoided, and the assembling quality is improved.
Description
Technical Field
The invention relates to the technical field of positioning and guiding of shock absorbers, in particular to a positioning and guiding device and a large-cylinder-diameter double-cylinder shock absorber.
Background
The shock absorber is one of the key parts of the vehicle, bears a plurality of important performances of the vehicle, elastically supports the vehicle body and the load mass, determines the bearing capacity of the vehicle, ensures the comfort and the stability of the vehicle in running, and improves the reliability and the service life of each part of the vehicle.
The most of the currently mainly used shock absorbers are hydraulic cylinder type shock absorbers which can be divided into a single cylinder and a double cylinder structure according to the structure, and in the functional structure of the shock absorber, the double cylinder structure shock absorber is composed of a working cylinder and a liquid storage cylinder, wherein a piston valve system on a piston rod assembly is arranged in the working cylinder, the upper end opening of the working cylinder is matched and connected with a shaft neck of a guide seat and matched and positioned with the inner diameter of the liquid storage cylinder through the outer diameter of the guide seat, and a core part base valve seat in a base valve system is arranged at the lower end opening of the working cylinder and matched and connected with the lower end opening of the working cylinder, wherein the base valve seat takes an inner type working surface and the structure of a bottom cover as a positioning reference and is matched and positioned and connected with the inner diameter surface of the liquid storage cylinder through the outer diameter surface of the bottom cover, therefore, in the double cylinder structure shock absorber, the relative positions (which can be defined as coaxiality) of the working cylinder and the liquid storage cylinder in the radial direction, the upper end is connected in series by the positioning and connecting functions of the structural shape and the size of the guide seat, and the lower end is connected in series by the positioning and connecting functions of the bottom seat and the bottom cover.
However, in some large-cylinder-diameter dual-cylinder shock absorber products, due to the requirement of special structures in the products, the size of a liquid storage cylinder is much larger than that of a working cylinder, for example, the inner diameter of the working cylinder is 50mm, and the outer diameter of the liquid storage cylinder is 90mm, when a bottom valve and a working cylinder assembly are placed in a liquid storage cylinder assembly, due to the large space size between an inner cylinder and an outer cylinder, the bottom valve and the working cylinder assembly are not easy to be quickly and accurately placed on a positioning surface of a bottom cover part of a machining structure, and deflection occurs frequently during positioning, so that the assembly quality of the shock absorber assembly is seriously affected.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a positioning and guiding device which can effectively ensure that a working cylinder does not incline after being placed in a liquid storage barrel; the large-cylinder-diameter double-cylinder shock absorber can be automatically aligned in the assembling process, the working cylinder is prevented from being inclined, and the assembling quality is improved.
The technical problem to be solved by the invention is as follows:
on the one hand, the method comprises the following steps of,
a positioning guide device comprises a circular positioning ring provided with an inner hole and a bulge part arranged on the outer side of the positioning ring;
the bulge is L-shaped and comprises an outward turning plate and a connecting plate, wherein the connecting plate is connected with the outer side of the positioning ring, and the outward turning plate is arranged on one side, far away from the positioning ring, of the connecting plate.
In some possible embodiments, the outer flap is arranged parallel to the positioning ring.
In some possible embodiments, the connecting plate is connected perpendicularly and smoothly with the valgus plate and the retainer ring, respectively.
In some possible embodiments, the plurality of the convex parts are the same in structure, and the plurality of the convex parts are uniformly arranged along the circumferential direction of the positioning ring; one side of the plurality of outer turning plates, which is far away from the connecting plate, is arc-shaped and forms a concentric circle concentric with the inner hole.
In some possible embodiments, the number of the protrusions is three.
On the other hand, in the case of a liquid,
a large-cylinder-diameter double-cylinder shock absorber comprises a liquid storage cylinder, a working cylinder sleeved in the liquid storage cylinder, a bottom cover, a bottom valve seat and the positioning guide device, wherein the bottom valve seat is arranged on the bottom cover;
the bottom valve seat is provided with a bottom valve seat boss coaxial with the liquid storage barrel, and the inner hole of the positioning ring is sleeved outside the bottom valve seat boss and is in small clearance fit with the bottom valve seat boss; the boss of the bottom valve seat and the bottom valve seat form a step end face, and the positioning ring is arranged on the step end face; the outer turning plate and the connecting plate are positioned between the liquid storage cylinder and the working cylinder.
In some possible embodiments, one end of the working cylinder close to the base valve seat abuts against the positioning ring.
In some possible embodiments, the outer flap is a small clearance fit with the inner wall of the reservoir; the working cylinder is sleeved outside the boss of the bottom valve seat and is in interference fit with the boss of the bottom valve seat.
In some possible embodiments, the bottom cover is provided with a spherical groove, and the bottom valve seat is provided with a spherical surface with the same size as the spherical groove.
In some possible embodiments, the clearance between the inner hole and the boss of the base valve seat is 0.02mm-0.07 mm; the gap between the outer turning plate and the liquid storage barrel is 0.2mm-0.3 mm.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the positioning ring is sleeved on the outer side of the boss of the base valve seat, the position of the positioning ring is fixed by the working cylinder, and the outer turning plate is used for guiding in the whole assembly process, so that the working cylinder is effectively prevented from being inclined in the assembly process;
according to the invention, a stable structural assembly is formed by the positioning guide device, the working cylinder and the base valve, when the assembly is installed in the liquid storage cylinder, the radial relation between the working cylinder of the shock absorber and the liquid storage cylinder at the lower end area of the shock absorber structure is connected in series by virtue of the inner hole of the positioning guide device and the flanging outward-turning plate, so that the shock absorber working cylinder assembly can not be inclined after being placed in the liquid storage cylinder assembly, and the assembling quality of the large-cylinder-diameter double-cylinder shock absorber assembly is greatly improved;
the positioning guide device provided by the invention extends towards one side in the liquid storage barrel through the outer turning plate to serve as the extension of the bottom structure of the part, so that the interference limit possibly brought by the height structure of the bottom cover part can be effectively avoided, and the positioning guide device can continue to structurally extend towards the radial direction to obtain an effective space.
Drawings
FIG. 1 is a schematic view of a positioning guide device according to the present invention;
FIG. 2 is a front elevational view of the positioning guide of the present invention;
FIG. 3 is a schematic cross-sectional view of a large bore dual tube shock absorber in accordance with the present invention;
FIG. 4 is a schematic view showing the connection relationship between the bottom valve seat, the bottom cover, the positioning guide device and the working cylinder according to the present invention;
wherein: 11. positioning rings; 12. a connecting plate; 13. an outer turning plate; 14. an inner bore; 21. a liquid storage barrel; 22. a working cylinder; 23. a base valve seat; 24. a bottom cover.
Detailed Description
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. Reference herein to "first," "second," and similar words, does not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. In the implementation of the present application, "and/or" describes an association relationship of associated objects, which means that there may be three relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In the description of the embodiments of the present application, the meaning of "a plurality" means two or more unless otherwise specified. For example, the plurality of positioning posts refers to two or more positioning posts. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The present invention will be described in detail below.
As shown in fig. 1-4:
on the one hand, the method comprises the following steps of,
a positioning guide device comprises a positioning ring 11 which is annular and is provided with an inner hole 14, and a convex part arranged on the outer side of the positioning ring 11;
the protruding part is L-shaped and comprises an outward turning plate 13 and a connecting plate 12, wherein the connecting plate 12 is connected with the outer side of the positioning ring 11, and the outward turning plate 13 is arranged on one side, far away from the positioning ring 11, of the connecting plate 12.
In some possible embodiments, the outer flap 13 is arranged parallel to the positioning ring 11.
In some possible embodiments, the connecting plate 12 is connected perpendicularly and smoothly with the valgus plate 13 and the cage 11, respectively.
In some possible embodiments, the number of the protrusions is multiple and the structure is the same, and the multiple protrusions are uniformly arranged along the circumferential direction of the positioning ring 11; the side of the plurality of outer turning plates 13 far away from the connecting plate 12 is arc-shaped and forms a concentric circle with the inner hole 14.
As shown in fig. 1 and 2, the protrusions are uniformly arranged on the outer side of the positioning ring 11 for cooperating with the inner wall of the liquid storage barrel 21, so that the assembly of the working cylinder 22 can be guided and positioned, and the working cylinder 22 and the liquid storage barrel 21 cannot be coaxial due to the fact that the working cylinder 22 is inclined in the assembly process is effectively avoided.
In some possible embodiments, the number of the protrusions is three.
Preferably, the thickness of the evagination plate 13, the connecting plate 12 and the positioning plate is 0.8 mm.
Preferably, the coaxiality tolerance value of the inner hole 14 and the outward turning plate 13 is D, and D is less than or equal to 0.1 mm.
As shown in fig. 1 and 2; preferably, the cross-section of the connecting plates 12 is in a circular arc structure, and a plurality of the connecting plates 12 form a concentric circle with the inner hole 14, wherein the outer diameter of the circle formed by the outward turning plates 13 is larger than that of the circle formed by the connecting plates 12.
The outward turning plate 13 and the locating ring 11 form two circular ring structures, and the outward turning plate 13 forms the circular ring structure and extends along the axis of the locating ring 11 under the action of the connecting plate 12, so that a locating guide device is formed.
On the other hand, in the case of a liquid,
a large-cylinder-diameter double-cylinder shock absorber comprises a liquid storage cylinder 21, a working cylinder 22 sleeved in the liquid storage cylinder 21, a bottom cover 24, a bottom valve seat 23 mounted on the bottom cover 24, and the positioning guide device;
the bottom valve seat 23 is provided with a bottom valve seat boss coaxial with the liquid storage barrel 21, and the inner hole 14 is sleeved outside the bottom valve seat boss and is in small clearance fit with the bottom valve seat boss; the boss of the bottom valve seat and one end of the bottom valve seat 23 close to the working cylinder 22 form a step end face, and the positioning ring 11 is arranged on the step end face; the outer flap 13 and the connecting plate 12 are located between the reservoir 21 and the cylinder 22. The outside of the positioning ring 11 is also located between the reservoir 21 and the cylinder 22.
The inner hole 14 is in small clearance fit with the boss of the bottom valve seat, so that the positioning precision requirement of the whole device is not influenced, and the process operation is simplified.
Preferably, the ratio of the inner diameter of the cylinder 22 to the outer diameter of the reservoir 21 is 1.8;
in some possible embodiments, in order to make the mounting of the cage 11 more stable;
one end of the working cylinder 22 close to the base valve seat 23 abuts against the positioning ring 11.
In some possible embodiments, in order to be effective, the assembly guide can be realized by the outer flap 13 during assembly;
the outer turning plate 13 is in small clearance fit with the inner wall of the liquid storage barrel 21;
in order to prevent the cage 11 from moving in the axial direction of the cylinder 22;
the working cylinder 22 is sleeved on the outer side of the boss of the bottom valve seat and is in interference fit with the boss of the bottom valve seat.
In some possible embodiments, in order to effectively achieve automatic alignment of the base seat 23;
the bottom cover 24 is provided with a spherical groove, and the bottom valve seat 23 is provided with a spherical surface with the same size of the spherical groove.
The spherical groove is provided on the side of the bottom cover 24 adjacent to the liquid cartridge 21.
In some possible embodiments, the clearance between the inner hole 14 and the boss of the base valve seat is 0.02mm-0.07 mm; the gap between the outer turning plate 13 and the liquid storage barrel 21 is 0.2mm-0.3 mm.
During assembly, the inner hole 14 is in small clearance fit with the boss of the bottom valve seat, the end face of one side of the positioning ring 11, which is far away from the outer turning plate 13, is in butt fit with the end face of the step, and then one end of the working cylinder 22 is sleeved on the outer side of the boss of the bottom valve seat and is in interference fit with the outer side of the boss of the bottom valve seat; the working cylinder 22, the positioning guide device and the bottom valve seat 23 form a stable structural assembly, when the assembly is installed in the liquid storage cylinder 21, the radial relation between the working cylinder 22 and the liquid storage cylinder 21 in the lower end area of the shock absorber structure is connected in series by virtue of the inner hole 14 and the flanged outer flanging plate 13, so that the shock absorber working cylinder 22 assembly can not be inclined after being placed in the liquid storage cylinder 21 assembly, and the assembling quality of the large-cylinder-diameter double-cylinder shock absorber assembly is greatly improved;
the positioning guide device has no real effective application in the internal damping structure of the shock absorber;
the outer side of the outer turning plate 13 is in small clearance fit with the inner wall of the working cylinder 22 and is coaxially arranged with the working cylinder 22, and through the arrangement, the structural component formed by the working cylinder 22, the positioning ring 11 and the bottom valve seat 23 can be structurally guided by the outer side part of the outer turning plate 13 in the whole assembling process in the process of being installed into the inner diameter of the liquid storage cylinder 21 by utilizing the coaxiality of the inner hole 14 and the outer turning plate 13;
the other structures of the large-cylinder-diameter double-cylinder shock absorber are the same as those of a large-cylinder-diameter double-cylinder shock absorber box in the prior art, and the internal structure of the large-cylinder-diameter double-cylinder shock absorber box is not described in detail;
during assembly, the positioning ring 11 is sleeved on the outer side of the boss of the bottom valve seat through the inner hole 14, then the position of the positioning ring 11 is fixed through interference fit between the inner side of the working cylinder 22 and the boss of the bottom valve seat, and after the three are assembled, a stable structural assembly is formed;
then the bottom valve seat 23 and the components thereof are arranged in the spherical groove, and the bottom of the bottom valve seat 23 is provided with a spherical surface which has the same size with the sphere, so that the automatic alignment of the bottom valve seat 23 and the components thereof can be quickly realized;
the outer turning plates 13 are in small clearance fit with the inner wall of the liquid storage barrel 21, so that when the working cylinder 22 only can enter the liquid storage barrel 21 under the condition of ensuring the working cylinder 22 to be coaxial with the liquid storage barrel 21, if the working cylinder is inclined, one of the outer turning plates 13 is in contact with the inner wall of the liquid storage barrel 21, and the working cylinder 22 is clamped and cannot be installed; only when the outer turning plate 13 is ensured to be in small clearance fit with the inner wall of the liquid storage barrel 21, the working cylinder 22 can completely enter the liquid storage barrel 21 for assembly; the guide of the working cylinder 22 in the transfer mode is effectively realized, and the influence on the whole assembly quality due to the deflection of the working cylinder 22 in the assembly process is avoided.
Example 1:
as shown in fig. 3, a large-bore double-cylinder shock absorber comprises a liquid storage cylinder 21, a working cylinder 22 which is sleeved in the liquid storage cylinder 21 and is coaxial with the liquid storage cylinder 21, a piston rod assembly which is arranged in the cylinder of the working cylinder 22, a bottom cover 24 which is arranged at one end of the liquid storage cylinder 21 and is provided with a spherical groove at one end close to the working cylinder 22, a bottom valve seat 23 which is arranged in the spherical groove and is provided with a cylindrical bottom valve seat boss at one side close to the working cylinder 22, and a positioning guide device which is arranged on the bottom valve seat 23; a positioning ring 11 in the positioning guide device is sleeved on a cylindrical positioning base valve seat boss, and the outer side of the positioning ring 11 extends into an annular cavity formed by the working cylinder 22 and the liquid storage cylinder 21; the connecting plate 12 is connected with the outer side of the positioning ring 11, and the length direction of the connecting plate is parallel to the axial direction of the working cylinder 22; the vertical plate is connected with one end of the connecting plate 12 close to the working cylinder 22; and the length direction thereof is mutually perpendicular to the axial direction of the working cylinder 22; the length of the connecting plate 12 along the axial direction of the working cylinder 22 is 12 mm; the outer side of the outer turning plate 13 far away from the working cylinder 22 is in small clearance fit with the inner wall of the liquid storage barrel 21, and the clearance is 0.2mm-0.3 mm; the outside of hole 14 and cylindric bottom valve seat boss is little clearance fit, and its clearance is: 0.02mm-0.07 mm; the coaxiality tolerance value of a circle formed by the outer side connecting line of the outer turning plate 13 and the inner hole 14 is E, and E is less than or equal to 0.1 mm; the raised parts formed by the outer turning plates 13 and the connecting plates 12 are 3 groups and are uniformly arranged along the circumferential direction of the positioning ring 11.
The ratio of the inner diameter of the cylinder 22 to the outer diameter of the reservoir 21 was 1.8.
The invention is not limited to the foregoing embodiments. The invention extends to any novel feature or any novel combination of features disclosed in this specification and any novel method or process steps or any novel combination of features disclosed.
Claims (10)
1. A positioning guide device is characterized by comprising a circular positioning ring provided with an inner hole and a convex part arranged on the outer side of the positioning ring;
the bulge is L-shaped and comprises an outward turning plate and a connecting plate, wherein the connecting plate is connected with the outer side of the positioning ring, and the outward turning plate is arranged on one side, far away from the positioning ring, of the connecting plate.
2. The positioning and guiding device as claimed in claim 1, wherein the outward turning plate is disposed in parallel with the positioning ring.
3. A positioning guide according to claim 2 wherein the web is perpendicularly connected and smoothly blended with the valgus plate and the positioning ring, respectively.
4. The positioning and guiding device as claimed in claim 1, wherein the plurality of the convex parts are of the same structure, and are uniformly arranged along the circumferential direction of the positioning ring; one side of the plurality of outer turning plates, which is far away from the connecting plate, is arc-shaped and forms a concentric circle concentric with the inner hole.
5. A positioning guide according to claim 4, wherein there are three of said projections.
6. A large-bore double tube shock absorber comprising a liquid tank, a working cylinder housed in the liquid tank, a bottom cover, a bottom valve seat mounted on the bottom cover, and the positioning guide as recited in any one of claims 1 to 5;
the bottom valve seat is provided with a bottom valve seat boss coaxial with the liquid storage barrel, and the inner hole of the positioning ring is sleeved outside the bottom valve seat boss and is in small clearance fit with the bottom valve seat boss; the boss of the bottom valve seat and the bottom valve seat form a step end face, and the positioning ring is arranged on the step end face; the outer turning plate and the connecting plate are positioned between the liquid storage cylinder and the working cylinder.
7. A large-bore dual tube shock absorber according to claim 6 wherein the end of the working cylinder adjacent the base valve seat abuts the spacer.
8. A large bore dual tube shock absorber according to claim 7 wherein the outer flap is a close clearance fit with the inner wall of the reservoir; the working cylinder is sleeved outside the boss of the bottom valve seat and is in interference fit with the boss of the bottom valve seat.
9. A large-bore dual tube shock absorber according to any one of claims 6-8 wherein the bottom cover is provided with spherical grooves and the bottom valve seat is provided with spherical surfaces having spherical grooves of the same size.
10. The large bore dual tube shock absorber according to claim 8 wherein the clearance between said bore and said base seat boss is 0.02mm to 0.07 mm; the gap between the outer turning plate and the liquid storage barrel is 0.2mm-0.3 mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111121141.5A CN114033827B (en) | 2021-09-24 | 2021-09-24 | Positioning guide device and large-cylinder-diameter double-cylinder shock absorber |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111121141.5A CN114033827B (en) | 2021-09-24 | 2021-09-24 | Positioning guide device and large-cylinder-diameter double-cylinder shock absorber |
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| CN114033827A true CN114033827A (en) | 2022-02-11 |
| CN114033827B CN114033827B (en) | 2023-05-02 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1516836A (en) * | 1974-08-22 | 1978-07-05 | Woodhead Ltd J | Hydraulic shock absorbers |
| CN201810714U (en) * | 2010-07-05 | 2011-04-27 | 南阳淅减汽车减振器有限公司 | Shock absorber with centring piece |
| CN203685961U (en) * | 2013-12-11 | 2014-07-02 | 隆昌山川精密焊管有限责任公司 | Radial positioning ring of working cylinder of shock absorber |
| CN204677671U (en) * | 2015-03-24 | 2015-09-30 | 隆昌山川精密焊管有限责任公司 | Novel bottom valve seat and vehicle shock absorber |
| CN205155009U (en) * | 2015-10-20 | 2016-04-13 | 惠州比亚迪电池有限公司 | Vibration damper |
| CN206495933U (en) * | 2016-11-02 | 2017-09-15 | 芜湖天佑汽车技术有限公司 | Guiding mechanism inside a kind of damper |
-
2021
- 2021-09-24 CN CN202111121141.5A patent/CN114033827B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1516836A (en) * | 1974-08-22 | 1978-07-05 | Woodhead Ltd J | Hydraulic shock absorbers |
| CN201810714U (en) * | 2010-07-05 | 2011-04-27 | 南阳淅减汽车减振器有限公司 | Shock absorber with centring piece |
| CN203685961U (en) * | 2013-12-11 | 2014-07-02 | 隆昌山川精密焊管有限责任公司 | Radial positioning ring of working cylinder of shock absorber |
| CN204677671U (en) * | 2015-03-24 | 2015-09-30 | 隆昌山川精密焊管有限责任公司 | Novel bottom valve seat and vehicle shock absorber |
| CN205155009U (en) * | 2015-10-20 | 2016-04-13 | 惠州比亚迪电池有限公司 | Vibration damper |
| CN206495933U (en) * | 2016-11-02 | 2017-09-15 | 芜湖天佑汽车技术有限公司 | Guiding mechanism inside a kind of damper |
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| CN114033827B (en) | 2023-05-02 |
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