CN114352671A - Air spring dust cover for strengthening pressure bearing capacity of air bag - Google Patents
Air spring dust cover for strengthening pressure bearing capacity of air bag Download PDFInfo
- Publication number
- CN114352671A CN114352671A CN202111461844.2A CN202111461844A CN114352671A CN 114352671 A CN114352671 A CN 114352671A CN 202111461844 A CN202111461844 A CN 202111461844A CN 114352671 A CN114352671 A CN 114352671A
- Authority
- CN
- China
- Prior art keywords
- air bag
- inclined surface
- cover body
- shaped guide
- bearing capacity
- 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.)
- Pending
Links
Images
Landscapes
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses an air spring dust cover for strengthening the pressure bearing capacity of an air bag, which relates to the technical field of automobile air suspensions and comprises a cover body and metal reinforcing rings, wherein the cover body is sleeved outside the air bag, one end of the cover body is fixedly connected to a base, the other end of the cover body is fixedly connected to a piston seat, a large V-shaped guide body and a small V-shaped guide body which are used for stretching and retracting are formed on the cover body, the large V-shaped guide body and the small V-shaped guide body form a group of corrugated structures, each group of corrugated structures are connected with each other, the height of the cover body is changed along with the change of the height of the air bag, the metal reinforcing rings are sleeved at the groove of the large V-shaped guide body of the cover body, and the plurality of metal reinforcing rings are used for strengthening the pressure bearing capacity of the air bag; the invention can not only strengthen the bearing capacity of the air bag, but also play a role of a dust cover, has simple structure, reliable function and lower cost, reduces the use and maintenance cost and has higher application prospect.
Description
Technical Field
The invention relates to the technical field of automobile air suspensions, in particular to an air spring dust cover for strengthening the pressure bearing capacity of an air bag.
Background
The air suspension system of the passenger car replaces the traditional spiral spring through the air spring, achieves the effects that the height of a car body can be adjusted, the offset frequency of the suspension is basically consistent under different loads, and the high-frequency impact on the road surface is absorbed and filtered, and improves the smoothness and the operation stability of the car. The core component of the air spring is an air bag compounded by rubber materials and a cord layer, and the air bag realizes the sealing and pressure bearing of the air spring and meets the requirements of the strokes of stretching and compressing. Because the air spring is a closed system in the working state, the internal pressure of the air spring can be increased or decreased along with the compression or the extension of the air spring, the pressure generated inside the air spring is maximum when the air spring is compressed to the stroke limit, and the pressure at the moment is called as the maximum working pressure. The bearing capacity of the air spring air bag is expressed by the burst pressure, and the burst pressure of the air bag is required to reach a certain multiple of the maximum working pressure of the air spring, so that the burst pressure of the air bag is improved, and the method has important significance for improving the safety of the air spring.
In the traditional structure, only the capsule skin is used as a pressure-bearing part, so that the technical difficulty in improving the pressure-bearing capacity of the air bag is high. In the center of the prior art, the pressure-bearing capacity of the air bag is increased by additionally arranging a protection piece or a restraint piece made of iron, aluminum and the like on the outer side of a bag skin, and a layer of dust cover is additionally arranged on the outer side of the protection piece or the restraint piece and used for preventing the air bag from being damaged.
Therefore, an integrated air spring dust cover which has a simple structure, can strengthen the pressure-bearing capacity of the air bag and can also have the function of a dust cover needs to be designed.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the integrated air spring dust cover which has a simple structure, can strengthen the pressure-bearing capacity of an air bag and can also play a role of a dust cover, so as to overcome the defects in the prior art.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
an air spring dust cover for strengthening the pressure bearing capacity of an air bag comprises a cover body and a metal reinforcing ring; the air bag cover is characterized in that the cover body is sleeved on the outer side of the air bag, one end of the cover body is fixedly connected to the base, the other end of the cover body is fixedly connected to the piston seat, a large V-shaped guide body and a small V-shaped guide body which are used for stretching and retracting are formed on the cover body, the large V-shaped guide body and the small V-shaped guide body form a group of corrugated structures, each group of corrugated structures are connected with each other, and the height of the cover body is changed along with the change of the height of the air bag; the metal reinforcing rings are sleeved at the grooves of the large V-shaped guide bodies of the cover body, the metal reinforcing rings are arranged at intervals along the radial direction of the cover body, and the plurality of metal reinforcing rings are used for reinforcing the pressure bearing capacity of the air bag.
Preferably, the cover is a cylindrical corrugated structure made of thermoplastic vulcanizate (TPV).
Preferably, the large V-shaped guide body is arranged close to the air bag, so that the metal reinforcing ring can strengthen the pressure bearing capacity of the air bag to the maximum extent.
Preferably, the large V-shaped guide body comprises a first inclined surface and a second inclined surface, the length of the first inclined surface is greater than that of the second inclined surface, and an included angle between the first inclined surface and the second inclined surface is an acute angle.
Preferably, the small V-shaped guide body comprises a third inclined surface and a fourth inclined surface, the length of the third inclined surface is greater than that of the fourth inclined surface, and an included angle between the third inclined surface and the fourth inclined surface is an acute angle.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the beneficial effects that:
1. the cover body is made of thermoplastic vulcanized rubber (TPV), and has the advantages of elasticity, good telescopic performance, no hardening, no embrittlement, good aging resistance, high compactness and durability;
2. the metal reinforcing ring is sleeved outside the cover body, and the explosion pressure of the air spring airbag is effectively improved due to the fact that the cover body is tightly attached to the airbag and the rigidity of the metal reinforcing ring and the flexibility of the cover body are relied on;
3. the invention can not only strengthen the bearing capacity of the air bag, but also play the role of a dust cover, belongs to an integrated air spring dust cover, prolongs the service life of the air spring, and reduces the use and maintenance cost;
4. the invention has simple structure, reduces the interference risk between the air spring and peripheral components, has reliable function and lower cost and has higher application prospect.
Drawings
Other objects and results of the present invention will become more apparent and more readily appreciated as the same becomes better understood by reference to the following description taken in conjunction with the accompanying drawings. In the drawings:
FIG. 1 is a schematic view of an air spring incorporating the present invention;
FIG. 2 is a partial enlarged view of portion A of FIG. 1;
wherein the reference numerals include: the air bag type piston comprises a cover body 1, a metal reinforcing ring 2, an air bag 3, a base 4, a piston seat 5, a large V-shaped guide body 101, a small V-shaped guide body 102, a first inclined surface 1011, a second inclined surface 1012, a third inclined surface 1021 and a fourth inclined surface 1022.
Detailed Description
The technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. It is to be noted that all the figures are exemplary representations. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.
Referring to fig. 1 and 2, the air spring dust cover for reinforcing the pressure bearing capacity of the air bag comprises a cover body 1 and a metal reinforcing ring 2; the cover body 1 is the drum ripple shape structure of making by thermoplasticity vulcanized rubber (TPV), 1 suit of the cover body is in the 3 outsides of gasbag, and 3 intussuseptions of gasbag are filled with high-pressure gas, and the both ends of gasbag 3 are fixed on base 4 and piston seat 5 through the clamping ring respectively, and gasbag 3 sets up inside the cover body 1, the one end of the cover body 1 links firmly on base 4 through the elasticity lock of self, the other end of the cover body 1 also links firmly on piston seat 5 through the elasticity lock of self, the cover body 1 can also realize the fixed connection at the cover body 1 both ends through modes such as clamping ring, the height of the cover body 1 changes along with the change of gasbag 3 height, and the cover body 1 links firmly with the completion of metal reinforcing ring 2 in the fashioned technological process.
The cover body 1 is nearly cylindrical, a large V-shaped guide body 101 and a small V-shaped guide body 102 for extension and contraction are formed on the cover body 1, the large V-shaped guide body 101 includes a first inclined surface 1011 and a second inclined surface 1012, the small V-shaped guide body 102 comprises a third inclined surface 1021 and a fourth inclined surface 1022, the large V-shaped guide body 101 and the small V-shaped guide body 102 form a group of corrugated structures, each group of corrugated structures are connected with each other, that is, the first inclined surface 1011 is connected to the second inclined surface 1012, the second inclined surface 1012 is connected to the fourth inclined surface 1022, the fourth inclined surface 1022 is connected to the third inclined surface 1021, thereby forming a group of corrugated structures, the length of the first inclined surface 1011 is greater than that of the second inclined surface 1012, the included angle between the first inclined surface 1011 and the second inclined surface 1012 is an acute angle in a normal state, the length of the third inclined surface 1021 is greater than that of the fourth inclined surface 1022, and an included angle between the third inclined surface 1021 and the fourth inclined surface 1022 is an acute angle in a normal state; big V-arrangement guide body 101 hugs closely gasbag 3 and sets up, metal reinforcing ring 2 is fixed the groove of the big V-arrangement guide body 101 of the cover body 1, metal reinforcing ring 2 is followed the radial interval of the cover body 1 sets up, and is a plurality of metal reinforcing ring 2 links firmly on the big V-arrangement guide body 101 of hugging closely gasbag 3, and the maximum pressure-bearing capacity who strengthens gasbag 3.
The operation of the present invention will be described with reference to fig. 1 and 2.
In the process that the cover body 1 is stretched and compressed along with the movement of the air spring assembly, the large V-shaped guide body 101 of the cover body 1 plays a role in guiding the metal reinforcing ring 2, the outer wall of the air bag 3 is attached to the inner wall of the cover body 1 along with the rolling and extension of the air bag 3, the metal reinforcing ring 2 plays a role in radial restraint on the air bag 3 at the moment, the pressure of high-pressure gas filled in the air bag 3 acting on the outer wall of the air bag 3 is outward, the metal reinforcing ring 2 plays a role in radial restraint on the air bag 3 at the moment, namely, the acting force from the high-pressure gas filled in the air bag 3 is resisted, and further the strengthening of the pressure bearing capacity of the air bag 3 is realized by means of the rigidity of the metal reinforcing ring 2 and the flexibility of the cover body 1; because the inner side of the cover body 1 is tightly attached to the air bag 3, a large gap is not reserved between the cover body 1 and the air bag 3, the outer diameter of the cover body 1 is not required to be overlarge, and the interference risk of the air spring assembly and peripheral components is reduced.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (5)
1. An air spring dust cover for strengthening the pressure bearing capacity of an air bag is characterized by comprising a cover body and a metal reinforcing ring; the air bag cover is characterized in that the cover body is sleeved on the outer side of the air bag, one end of the cover body is fixedly connected to the base, the other end of the cover body is fixedly connected to the piston seat, a large V-shaped guide body and a small V-shaped guide body which are used for stretching and retracting are formed on the cover body, the large V-shaped guide body and the small V-shaped guide body form a group of corrugated structures, each group of corrugated structures are connected with each other, and the height of the cover body is changed along with the change of the height of the air bag; the metal reinforcing rings are sleeved at the grooves of the large V-shaped guide bodies of the cover body, the metal reinforcing rings are arranged at intervals along the radial direction of the cover body, and the plurality of metal reinforcing rings are used for reinforcing the pressure bearing capacity of the air bag.
2. The air spring dust cover for reinforcing the pressure-bearing capacity of an air bag according to claim 1, wherein said cover body has a cylindrical bellows-shaped structure made of thermoplastic vulcanizate (TPV).
3. The air spring dust cover for reinforcing the pressure bearing capacity of an air bag according to claim 1, wherein the large V-shaped guide body is arranged to be closely attached to the air bag, so that the metal reinforcing ring reinforces the pressure bearing capacity of the air bag to the maximum extent.
4. The air spring dust cover for reinforcing the pressure bearing capacity of an air bag according to claim 1, wherein the large V-shaped guide body comprises a first inclined surface and a second inclined surface, the length of the first inclined surface is greater than that of the second inclined surface, and the included angle between the first inclined surface and the second inclined surface is an acute angle.
5. The air spring dust cover for reinforcing the pressure bearing capacity of an air bag according to claim 1, wherein the small V-shaped guide body comprises a third inclined surface and a fourth inclined surface, the length of the third inclined surface is greater than that of the fourth inclined surface, and the included angle between the third inclined surface and the fourth inclined surface is an acute angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111461844.2A CN114352671A (en) | 2021-12-02 | 2021-12-02 | Air spring dust cover for strengthening pressure bearing capacity of air bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111461844.2A CN114352671A (en) | 2021-12-02 | 2021-12-02 | Air spring dust cover for strengthening pressure bearing capacity of air bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114352671A true CN114352671A (en) | 2022-04-15 |
Family
ID=81097149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111461844.2A Pending CN114352671A (en) | 2021-12-02 | 2021-12-02 | Air spring dust cover for strengthening pressure bearing capacity of air bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114352671A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115159390A (en) * | 2022-06-23 | 2022-10-11 | 北京航天发射技术研究所 | Large-scale flexible lifting device |
-
2021
- 2021-12-02 CN CN202111461844.2A patent/CN114352671A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115159390A (en) * | 2022-06-23 | 2022-10-11 | 北京航天发射技术研究所 | Large-scale flexible lifting device |
| CN115159390B (en) * | 2022-06-23 | 2024-04-05 | 北京航天发射技术研究所 | Large-scale flexible lifting device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3438309A (en) | Pneumatic springs | |
| CN103502027B (en) | Rolling piston for air spring scroll airbag | |
| CN114352671A (en) | Air spring dust cover for strengthening pressure bearing capacity of air bag | |
| US7325794B2 (en) | Air spring assembly and method | |
| EP0413420A1 (en) | Spliced air sleeve assembly for air spring damper | |
| CN110206842A (en) | A kind of single cylinder cylinder double chamber hydragas spring | |
| CN217152811U (en) | Air spring dust cover for strengthening pressure bearing capacity of air bag | |
| CN207077966U (en) | Air spring for the walking mechanism of vehicle | |
| CN112727987B (en) | Rubber pile, auxiliary spring and air spring system | |
| JP4844231B2 (en) | Air spring and suspension using the air spring | |
| CN208107051U (en) | A kind of dust cover and the vibration damper complement with the dust cover | |
| BR102013013088A2 (en) | Damping cushion for motor vehicle suspensions | |
| CN218094004U (en) | Dust cover for air spring, air spring and vehicle | |
| CN112659835B (en) | Air spring and multi-connecting-rod independent suspension | |
| CN110206843A (en) | A kind of twin-tub cylinder double chamber hydragas spring | |
| US20210332867A1 (en) | Air suspension assembly and bellows for an air suspension assembly | |
| CN110792715A (en) | Compressing combined buffer of combined piston | |
| JP3096006B2 (en) | shock absorber | |
| CN215567573U (en) | Buffer block for automobile shock absorber | |
| CN218266965U (en) | Double-layer single-cylinder shock absorber | |
| CN219282307U (en) | Air spring, upright post assembly, vehicle suspension and vehicle | |
| CN219510065U (en) | Air spring anti-rotation structure | |
| CN219954057U (en) | Exhaust valve, supercharger and air supply system of air suspension | |
| CN219795952U (en) | Novel sealing diaphragm of air spring | |
| CN217842491U (en) | Compression buffer device for shock absorber of commercial vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |