CN216691977U - Piston assembly for air spring, air spring and vehicle - Google Patents
Piston assembly for air spring, air spring and vehicle Download PDFInfo
- Publication number
- CN216691977U CN216691977U CN202123007907.5U CN202123007907U CN216691977U CN 216691977 U CN216691977 U CN 216691977U CN 202123007907 U CN202123007907 U CN 202123007907U CN 216691977 U CN216691977 U CN 216691977U
- Authority
- CN
- China
- Prior art keywords
- piston assembly
- air spring
- piston
- vehicle
- protective cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Fluid-Damping Devices (AREA)
Abstract
The utility model belongs to the technical field of vehicle accessories, and particularly provides a piston assembly for an air spring, the air spring and a vehicle. The utility model aims to solve the problems that the whole piston assembly needs to be completely replaced in the process of adjusting the whole external dimension of the piston assembly due to the adoption of an integrated design mode, the corresponding improvement of the whole external dimension of the piston assembly according to a vehicle adjustment result is not facilitated, the development period of an air spring is long, and the development and manufacturing cost is high. For this purpose, the piston assembly for the air spring comprises a piston body and a protective cover, wherein the protective cover is detachably sleeved outside the piston body. In the process of correspondingly adjusting the piston assembly according to the vehicle adjusting result, the overall external dimension of the piston assembly can be changed only by adjusting the external diameter dimension of the protective cover, so that the hardness of the air spring required by vehicle adjustment can be adapted.
Description
Technical Field
The utility model belongs to the technical field of vehicle accessories, and particularly provides a piston assembly for an air spring, the air spring and a vehicle.
Background
With the development of social economy and vehicle industry, vehicles are widely used in daily life, so that the requirements of consumers on the performance of the vehicles are higher and higher, one of the important indexes is the damping performance of the vehicles, and therefore, the air spring is widely applied to the field of vehicles, wherein a piston assembly is one of more important components in the air spring.
The existing piston assembly for the air spring generally adopts an integrated design mode to meet the design requirement of the air spring.
However, in the air spring, the piston assembly is an adjustment part, and according to the adjustment result of the vehicle, the piston assembly needs to be modified, for example, by changing the overall external dimension of the piston assembly to adapt to the hardness and softness of the air spring required for the adjustment of the vehicle. Therefore, the existing piston assembly for the air spring needs to be entirely replaced in the process of adjusting the overall external size of the piston assembly due to the adoption of an integrated design mode, so that the problems that the overall external size of the piston assembly is not correspondingly improved according to a vehicle adjusting result, the development period of the air spring is long, and the development and manufacturing cost is high exist.
Accordingly, there is a need in the art for a new piston assembly for an air spring, an air spring and a vehicle that addresses the above-mentioned problems.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems in the prior art that the whole piston assembly needs to be replaced in the process of adjusting the whole external size of the piston assembly due to the adoption of an integrated design mode, the corresponding improvement on the whole external size of the piston assembly according to a vehicle adjustment result is not facilitated, the development period of the air spring is long, and the development and manufacturing cost is high, the utility model provides the piston assembly for the air spring, wherein the piston assembly comprises a piston body and a protective cover, and the protective cover is detachably sleeved outside the piston body.
In the above-described preferred embodiment of the piston assembly for an air spring, the outer diameter of the piston body is larger than the inner diameter of the protective cover.
In the above preferable technical scheme of the piston assembly for the air spring, the piston body is provided with the transverse rib, and the protective cover is sleeved on the transverse rib.
In the above-described preferred embodiment of the piston assembly for an air spring, the transverse rib is integrally formed with the piston body.
In the above-described preferred embodiment of the piston assembly for an air spring, the cross rib is a circular ring.
In the above-mentioned preferable technical solution for the piston assembly of the air spring, a frosted surface is provided on the first side surface of the cross bar.
In the above-mentioned preferable technical solution for the piston assembly of the air spring, the piston body is provided with a stopper outer edge, and the protective cover abuts against the stopper outer edge.
In the above preferred technical solution for the piston assembly of the air spring, a frosted surface is provided on the inner side wall of the protective cover; and/or a frosted surface is arranged on the side wall of the outer side of the piston body.
The utility model also provides an air spring for a vehicle, which comprises an upper piston assembly and a lower piston assembly which are arranged at intervals, wherein the upper piston assembly is fixed on a vehicle body, the lower piston assembly is fixed on a vehicle chassis, and a leather bag is arranged between the upper piston assembly and the lower piston assembly; at least one of the upper piston assembly or the lower piston assembly is the piston assembly for an air spring according to any one of the above-described aspects.
The utility model further provides a vehicle, and the vehicle comprises the air spring for the vehicle in the technical scheme.
As can be understood by those skilled in the art, in the technical scheme of the utility model, the piston assembly comprises a piston body and a protective cover, and the protective cover is detachably sleeved outside the piston body.
Through the arrangement mode, the piston assembly for the air spring adopts a split type design, namely the piston assembly comprises the piston body and the protective cover, and the protective cover is detachably sleeved outside the piston body, so that the overall external dimension of the piston assembly can be changed by adjusting the external diameter dimension of the protective cover in the process of correspondingly adjusting the piston assembly according to the vehicle adjusting result, the hardness of the air spring required by vehicle adjustment is adapted, and the design requirement of the air spring on the piston assembly in the vehicle adjusting state is met. Therefore, compared with the existing integrated piston assembly for the air spring, which needs to be completely replaced in the process of adjusting the overall external size of the piston assembly, the piston assembly for the air spring can be adjusted in the overall external size of the piston assembly only by independently adjusting the external diameter of the protective cover in the process of correspondingly adjusting the piston assembly according to the vehicle adjustment result, so that the adjustment process of adjusting the piston assembly according to the vehicle adjustment result is simplified, the development period is shortened, and the development and manufacturing cost is reduced.
Drawings
The piston assembly for an air spring, the air spring and the vehicle of the present invention will be described with reference to the accompanying drawings. In the drawings:
FIG. 1 is a schematic view of a piston assembly for an air spring according to the present invention.
List of reference numerals:
1-a piston assembly;
11-a piston body; 111-transverse bar; 1111-a first side; 112-a stop outer edge;
12-protective cover.
Detailed Description
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. And can be adjusted as needed by those skilled in the art to suit particular applications. For example, although the description has been given of the arrangement of the transverse ribs on the piston body, and the transverse ribs are arranged on the outer side wall of the piston body at equal intervals in the vertical direction, it is obvious that the present invention may adopt other arrangements of the transverse ribs as long as the arrangement of the transverse ribs can improve the overall strength of the piston assembly. For example, it is also possible to provide a transverse rib on the piston body, and to provide the transverse rib at a position intermediate the outer side wall of the piston body in the vertical direction.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "inside", "outside", etc. are based on the directions or positional relationships shown in the drawings, which are for convenience of description only, and do not indicate or imply that the device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the term "first" is used for descriptive purposes only and is not to be construed as indicating or implying a relative importance.
The existing piston assembly for the air spring generally adopts an integrated design mode to meet the design requirement of the air spring. However, in the air spring, the piston assembly is an adjustment part, and according to the adjustment result of the vehicle, the piston assembly needs to be modified, for example, by changing the overall external dimension of the piston assembly to adapt to the hardness and softness of the air spring required for the adjustment of the vehicle. Therefore, the existing piston assembly for the air spring needs to be entirely replaced in the process of adjusting the overall external size of the piston assembly due to the adoption of an integrated design mode, so that the problems that the overall external size of the piston assembly is not correspondingly improved according to a vehicle adjusting result, the development period of the air spring is long, and the development and manufacturing cost is high exist.
Therefore, the utility model provides a novel piston assembly for an air spring, and the split design is adopted, namely the piston assembly comprises a piston body and a protective cover, and the protective cover is detachably sleeved outside the piston body, so that the overall external dimension of the piston assembly can be changed by only adjusting the external diameter dimension of the protective cover in the process of correspondingly adjusting the piston assembly according to the vehicle adjusting result, the hardness of the air spring required by vehicle adjustment is adapted, and the design requirement of the air spring on the piston assembly in the vehicle adjusting state is met. Therefore, compared with the existing integrated piston assembly for the air spring, which needs to be completely replaced in the process of adjusting the overall external size of the piston assembly, the piston assembly for the air spring can be adjusted in the overall external size of the piston assembly only by independently adjusting the external diameter of the protective cover in the process of correspondingly adjusting the piston assembly according to the vehicle adjustment result, so that the adjustment process of adjusting the piston assembly according to the vehicle adjustment result is simplified, the development period is shortened, and the development and manufacturing cost is reduced.
Referring to fig. 1, a piston assembly for an air spring according to the present invention will be described. Fig. 1 is a schematic structural view of a piston assembly for an air spring according to the present invention.
As shown in fig. 1, in order to solve the problems that the existing piston assembly for an air spring is not beneficial to correspondingly improving the piston assembly according to the vehicle adjustment result due to the adoption of an integrated design mode, the development period is long, and the development and manufacturing cost is high, the piston assembly 1 for the air spring comprises a piston body 11 and a protective cover 12, wherein the protective cover 12 is detachably sleeved outside the piston body 11.
Through the arrangement mode, the piston assembly 1 for the air spring adopts a split type design, namely the piston assembly 1 comprises the piston body 11 and the protective cover 12, and the protective cover 12 is detachably sleeved outside the piston body 11, so that the overall external size of the piston assembly 1 can be changed by adjusting the external diameter size of the protective cover 12 only in the process of correspondingly adjusting the piston assembly 1 according to the vehicle adjusting result, the hardness of the air spring required by vehicle adjustment is adapted, and the design requirement of the air spring on the piston assembly 1 in the vehicle adjusting state is met. Therefore, compared with the existing integrated piston assembly for the air spring, which needs to replace the whole piston assembly completely in the process of adjusting the whole external dimension of the piston assembly, the piston assembly 1 for the air spring can adjust the whole external dimension of the piston assembly 1 only by independently adjusting the external diameter dimension of the protective cover 12 in the process of correspondingly adjusting the piston assembly 1 according to the vehicle adjustment result, so that the adjustment process of adjusting the piston assembly 1 according to the vehicle adjustment result is simplified, the development period is further shortened, and the development and manufacturing cost is reduced.
It should be noted that, in this embodiment, the split piston assembly 1 is adopted, so that the adjustment of the overall external dimension of the piston assembly 1 can be realized only by separately adjusting the external dimension of the protective cover 12 in the development process of the air spring, and therefore, a certain number of piston bodies 11 can be produced in advance, and after the overall external dimension of the piston assembly 1 is determined, only a corresponding number of protective covers 12 need to be produced, so as to shorten the overall development period.
Referring further to FIG. 1, a piston assembly for an air spring of the present invention will be described in detail.
In a possible embodiment, the outer diameter of the piston body 11 is greater than the inner diameter of the protective cover 12.
In this embodiment, by setting the outer diameter of the piston body 11 to be larger than the inner diameter of the protective cover 12, in the process of sleeving the protective cover 12 on the piston body 11, the interference fit between the protective cover 12 and the piston body 11 can be realized. Therefore, the protection cover 12 and the piston body 11 are connected and fastened, the protection cover 12 and the piston body 11 can be better coaxial after the protection cover 12 and the piston body 11 are assembled, and in addition, the protection cover 12 and the piston body 11 can be assembled in an interference fit mode, so that the piston assembly 1 which is assembled can bear larger axial force, torque and dynamic load, the structural strength of the piston assembly 1 is improved, and the reliability of the air spring is improved.
In order to further improve the reliability of the assembly between the protective cover 12 and the piston body 11, in the present embodiment, a frosted surface (not shown) is provided on the inner side wall of the protective cover 12.
In this embodiment, the inner side wall of the protective cover 12 is provided with a frosted surface to increase the friction force between the protective cover 12 and the piston body 11, so as to further prevent the relative displacement between the protective cover 12 and the piston body 11 when the assembled piston assembly 1 bears a large load, thereby further improving the assembling reliability of the piston assembly 1.
In addition, in this embodiment, a frosted surface (not shown) may be further provided on the outer side wall of the piston body 11 to further increase the friction force between the protective cover 12 and the piston body 11, so as to further prevent the relative displacement between the protective cover 12 and the piston body 11 when the assembled piston assembly 1 is subjected to a large load, and further improve the assembly reliability of the piston assembly 1.
In one possible embodiment, as shown in fig. 1, the piston body 11 is provided with a transverse rib 111, and the protective cover 12 is sleeved on the transverse rib 111.
In this embodiment, the transverse rib 111 is disposed on the piston body 11, and the protective cover 12 is sleeved on the transverse rib 111, so that after the protective cover 12 is assembled with the piston body 11, the transverse rib 111 disposed on the piston body 11 abuts against the inner side wall of the protective cover 12, thereby increasing the structural strength of the integral piston assembly 1, and improving the reliability of the air spring.
In this embodiment, the piston body 11 is provided with a plurality of transverse ribs 111, and the plurality of transverse ribs 111 are provided on the outer side wall of the piston body 11 at equal intervals in the vertical direction.
Through set up a plurality of horizontal muscle 111 on piston body 11, can be so that when piston assembly 1 received great load, better with the great load dispersion that receives to a plurality of horizontal muscle 111 on to improve piston assembly 1's bulk strength. In addition, the transverse ribs 111 are equidistantly arranged on the outer side wall of the piston body 11, so that the load applied to the piston assembly 1 can be more uniformly dispersed to the transverse ribs 111, the overall strength of the piston assembly 1 is further improved, and the reliability of the air spring is further improved.
It is to be understood that, although the arrangement of the transverse ribs 111 is described in the embodiment by taking the example that the plurality of transverse ribs 111 are provided on the piston body 11 and the plurality of transverse ribs 111 are provided on the outer side wall of the piston body 11 at equal intervals in the vertical direction, the arrangement of the transverse ribs 111 in the embodiment is not limited thereto as long as the arrangement of the transverse ribs 111 can improve the overall strength of the piston assembly 1. For example, it is also possible to provide one lateral rib 111 on the piston body 11, and to provide the lateral rib 111 at a position intermediate in the vertical direction of the outer side wall of the piston body 11.
In order to facilitate the machining and manufacturing of the piston assembly 1, in the present embodiment, the transverse rib 111 is integrally formed with the piston body 11.
In this embodiment, the transverse rib 111 is integrally formed with the piston body 11, so as to facilitate the manufacturing process, and the integrally formed processing method can also increase the structural strength of the overall structure, thereby improving the reliability of the overall structure.
In the present embodiment, the transverse rib 111 is of a circular ring type. Because the external cross-sectional profile of the piston body 11 and the internal cross-sectional profile of the protective cover 12 are both circular, the transverse rib 111 is provided in a circular ring shape, so that the transverse rib 111 is adapted to be provided on the piston body 11 and the transverse rib 111 can meet the assembly requirement with the protective cover 12.
In addition, in order to further improve the reliability of the assembly between the protective cover 12 and the piston body 11, in the present embodiment, the first side 1111 of the transverse rib 111 is provided with a frosted surface (not shown).
In this embodiment, the frosted surface is disposed on the first side 1111 of the transverse rib 111 to increase the friction between the protective cover 12 and the first side 1111 of the transverse rib 111, so as to further prevent the relative displacement between the protective cover 12 and the piston body 11 when the piston assembly 1 is subjected to a large load, thereby further improving the assembly reliability of the piston assembly 1.
In one possible embodiment, as shown in fig. 1, the piston body 11 is provided with a stop outer edge 112, and the protective cover 12 abuts against the stop outer edge 112.
In this embodiment, the stopper outer edge 112 is disposed on the piston body 11, and the protection cover 12 abuts against the stopper outer edge 112, so that the stopper outer edge 112 can limit the protection cover 12 in the process of assembling the protection cover 12 and the piston body 11, thereby meeting the requirement of assembling precision between the protection cover 12 and the piston body 11, and facilitating the assembling operation between the protection cover 12 and the piston body 11. The other end of the protective cover 12 abuts against the lower end of the piston body 11.
In summary, the piston assembly 1 for the air spring of the present invention adopts a split design, that is, the piston assembly 1 includes the piston body 11 and the protective cover 12, and the protective cover 12 is detachably sleeved outside the piston body 11, so that in the process of correspondingly adjusting the piston assembly 1 according to the vehicle adjustment result, the external dimension of the whole piston assembly 1 can be changed by adjusting the external dimension of the protective cover 12, so as to adapt to the hardness of the air spring required by the vehicle adjustment, thereby meeting the design requirement of the air spring on the piston assembly 1 in the vehicle adjustment state. Therefore, compared with the existing integrated piston assembly for the air spring, which needs to be completely replaced in the process of adjusting the overall external dimension of the piston assembly, the piston assembly 1 for the air spring can adjust the overall external dimension of the piston assembly 1 only by independently adjusting the external diameter dimension of the protective cover 12 in the process of correspondingly adjusting the piston assembly 1 according to the vehicle adjustment result, so that the adjustment process of adjusting the piston assembly 1 according to the vehicle adjustment result is simplified, the development period is shortened, and the development and manufacturing costs are reduced.
Further, the piston assembly 1 for an air spring of the present invention improves the reliability of the air spring by making the outer diameter of the piston body 11 larger than the inner diameter of the protective cover 12 to achieve an interference fit between the protective cover 12 and the piston body 11.
In addition, according to the piston assembly 1 for the air spring, the transverse rib 111 is further arranged on the piston body 11, and the protective cover 12 is sleeved on the transverse rib 111, so that after the protective cover 12 is assembled with the piston body 11, the transverse rib 111 arranged on the piston body 11 abuts against the inner side wall of the protective cover 12, the structural strength of the whole piston assembly 1 is increased, and the reliability of the air spring is improved.
It should be noted that the above-mentioned embodiments are only used for illustrating the principle of the present invention, and are not intended to limit the protection scope of the present invention, and those skilled in the art can modify the above-mentioned structure so that the present invention can be applied to more specific application scenarios without departing from the principle of the present invention.
In addition, the utility model also provides an air spring for a vehicle, which comprises an upper piston assembly (not shown in the figure) and a lower piston assembly (not shown in the figure) which are arranged at intervals, wherein the upper piston assembly is fixed on a vehicle body, the lower piston assembly is fixed on a vehicle chassis, and a leather bag (not shown in the figure) is arranged between the upper piston assembly and the lower piston assembly, one end of the leather bag is arranged on the upper piston assembly, the other end of the leather bag is arranged on the lower piston assembly, the leather bag, the upper piston assembly and the lower piston assembly form a sealed space (not shown in the figure), and air is sealed in the sealed space; at least one of the upper piston assembly or the lower piston assembly is the piston assembly 1 for an air spring as described in any of the above embodiments.
In addition, the utility model also provides a vehicle having the air spring for a vehicle described in the above embodiment.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the utility model and form different embodiments. For example, in the claims of the present invention, any of the claimed embodiments may be used in any combination.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the utility model, and the technical scheme after the changes or substitutions can fall into the protection scope of the utility model.
Claims (10)
1. The piston assembly for the air spring is characterized by comprising a piston body and a protective cover, wherein the protective cover is detachably sleeved outside the piston body.
2. The piston assembly for an air spring of claim 1 wherein said piston body has an outer diameter greater than an inner diameter of said boot.
3. The piston assembly for an air spring of claim 1, wherein said piston body is provided with a transverse rib, and said protective cover is fitted over said transverse rib.
4. The piston assembly for an air spring of claim 3 wherein said cross rib is integrally formed with said piston body.
5. The piston assembly for an air spring of claim 3 wherein said cross rib is circular ring shaped.
6. The piston assembly for an air spring of claim 3 wherein said first side of said cross web is provided with a frosted surface.
7. The piston assembly for an air spring of claim 1, wherein said piston body is provided with a stop rim, said shield abutting said stop rim.
8. The piston assembly for an air spring of claim 1 wherein said inboard side wall of said shield has a frosted surface thereon; and/or the like and/or,
and a frosting surface is arranged on the side wall of the outer side of the piston body.
9. An air spring for a vehicle is characterized by comprising an upper piston assembly and a lower piston assembly which are arranged at intervals, wherein the upper piston assembly is fixed on a vehicle body, the lower piston assembly is fixed on a vehicle chassis, and a leather bag is arranged between the upper piston assembly and the lower piston assembly, one end of the leather bag is installed on the upper piston assembly, the other end of the leather bag is installed on the lower piston assembly, the leather bag, the upper piston assembly and the lower piston assembly form a sealed space, and air is sealed in the sealed space; at least one of the upper piston assembly or the lower piston assembly is the piston assembly for an air spring of claims 1-8.
10. A vehicle characterized by comprising an air spring for a vehicle recited in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123007907.5U CN216691977U (en) | 2021-12-02 | 2021-12-02 | Piston assembly for air spring, air spring and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123007907.5U CN216691977U (en) | 2021-12-02 | 2021-12-02 | Piston assembly for air spring, air spring and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216691977U true CN216691977U (en) | 2022-06-07 |
Family
ID=81836637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123007907.5U Active CN216691977U (en) | 2021-12-02 | 2021-12-02 | Piston assembly for air spring, air spring and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216691977U (en) |
-
2021
- 2021-12-02 CN CN202123007907.5U patent/CN216691977U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100387472C (en) | Telescopic shaft for steering vehicle and telescopic shaft for steering vehicle with cardan shaft coupling | |
| US9027912B2 (en) | Vibration damping device | |
| CN105437900A (en) | Bump stopper cap | |
| US20170355241A1 (en) | Strut mount | |
| EP4160044A1 (en) | Air spring assembly | |
| CN111795103A (en) | Two-way high damping hydraulic pressure sub vehicle frame bush and car | |
| CN216691977U (en) | Piston assembly for air spring, air spring and vehicle | |
| KR20090101168A (en) | Ball-and-socket joint with sealing ring | |
| CN208457025U (en) | A kind of sealed double-row full-complement cylinder roller bearing with spherical outside surface | |
| EP3693625B1 (en) | Slide bearing | |
| EP3227132B1 (en) | Piston design with increased lateral strength | |
| CN201563021U (en) | Shock-absorbing end cover structure of motor and motor using same | |
| CN212195092U (en) | Middle supporting structure of automobile transmission shaft and automobile | |
| CN204458980U (en) | A kind of bradyseism assembly | |
| CN203670487U (en) | Outer ring forging piece for automotive parts | |
| CN207345922U (en) | Suspension ball pin assembly and automotive suspension | |
| CN204572762U (en) | ball pin assembly | |
| CN219299769U (en) | Novel spherical pin assembly | |
| CN220910324U (en) | Floating piston for shock absorber, suspension system and vehicle | |
| CN111137098A (en) | Stabilizer bar connecting rod structure of automobile | |
| CN220884023U (en) | Suspension bushing structure and vehicle | |
| CN205097871U (en) | Pure electric vehicles's air condition compressor mounting structure and pure electric vehicles | |
| CN211082653U (en) | Anti-drop nylon bushing | |
| CN216683978U (en) | Automobile support bushing structure | |
| CN204472473U (en) | A kind of automobile control arm lining |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |