CN220726953U - Double-sealing top seat of air spring, damper and vehicle - Google Patents
Double-sealing top seat of air spring, damper and vehicle Download PDFInfo
- Publication number
- CN220726953U CN220726953U CN202322424570.0U CN202322424570U CN220726953U CN 220726953 U CN220726953 U CN 220726953U CN 202322424570 U CN202322424570 U CN 202322424570U CN 220726953 U CN220726953 U CN 220726953U
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- CN
- China
- Prior art keywords
- seal
- air spring
- sealing
- top seat
- footstock
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- 238000007789 sealing Methods 0.000 title claims abstract description 59
- 238000009434 installation Methods 0.000 claims abstract description 18
- 238000001125 extrusion Methods 0.000 claims abstract description 14
- 239000006096 absorbing agent Substances 0.000 claims abstract description 12
- 230000035939 shock Effects 0.000 claims abstract description 12
- 239000000428 dust Substances 0.000 claims description 24
- 230000006835 compression Effects 0.000 claims description 11
- 238000007906 compression Methods 0.000 claims description 11
- 230000009977 dual effect Effects 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 4
- 229920001967 Metal rubber Polymers 0.000 claims description 3
- 238000013040 rubber vulcanization Methods 0.000 claims description 3
- 230000003139 buffering effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Abstract
The utility model provides a double-seal footstock of an air spring, a shock absorber and a vehicle, and relates to the technical field of air springs. The sealing part has high-strength extrusion and high sealing performance due to large volume of rubber; after the sealing installation block is installed, both end faces are in an elastic rubber matching state, and the sealing installation block has good buffering and vibration absorbing capabilities.
Description
Technical Field
The utility model relates to the technical field of air springs, in particular to a double-sealing top seat of an air spring, a shock absorber and a vehicle.
Background
The air spring has light weight, good sound insulation and vibration absorption performance, and freely and conveniently adjustable rigidity, and can adapt to the requirements of various road conditions and cultivation loads, so the air spring is popular with automobile manufacturers and automobile drivers.
The automobile vibration reduction air spring is basically divided into two forms according to the use state, one is independently used, and the automobile vibration reduction air spring directly replaces an automobile vibration damper; the vibration damper is used as auxiliary part of traditional cylinder vibration damper to replace available rigid screw thread spring and is installed on the outer circle of cylinder vibration damper and the top of piston rod.
Air springs are used for many advantages, but there are many reasons why they are not yet popular, one of which is that the problem of tightness is relatively high. Because the air spring comprises a plurality of rubber parts, plastic parts, metal stamping parts, machining parts and the like, when the air spring is subjected to high-strength compression or strong impact in use, the phenomenon of gas leakage in a sealing cavity is easy to occur between parts connected and matched, and the application is provided for the defects.
Disclosure of Invention
The utility model aims to provide a double-sealing top seat of an air spring, which is characterized in that a top seat part, namely a dust cover, is additionally arranged to realize secondary sealing, so that the air spring still has excellent sealing performance at the top seat under severe use conditions.
In order to solve the problems, the utility model provides a double-seal footstock of an air spring, which comprises a footstock main body, a primary seal and a secondary seal, wherein the primary seal comprises an outer pipe, a seal mounting block and an inner connecting piece, the seal mounting block comprises extrusion sealing parts arranged at two sides of the inner connecting piece, the seal mounting block and the inner connecting piece are arranged in the outer pipe, the outer pipe is arranged in the footstock main body, the secondary seal comprises a seal dust cover, the seal dust cover is tightly matched on the footstock main body, one side of the extrusion sealing parts at two sides is in compression contact with the footstock main body, the other side of the extrusion sealing parts is in compression contact with the seal dust cover to form a first-channel seal, and a secondary seal is formed between the seal dust cover and the footstock main body.
According to an embodiment of the present utility model, the secondary seal further includes a seal ring disposed between the seal dust cover and the top seat main body.
According to an embodiment of the present utility model, a seal ring mounting groove is provided on the seal dust cover and/or the top seat main body.
According to one embodiment of the utility model, the seal mounting block is of an annular structure, and is internally provided with a mounting groove for mounting the inner connecting piece.
According to an embodiment of the utility model, the seal mounting block is fixedly connected with the outer tube.
According to one embodiment of the utility model, the sealing installation block is made of rubber, the outer tube is made of metal, and the sealing installation block is connected in a metal rubber vulcanization combination mode.
According to an embodiment of the present utility model, the outer tube is in interference fit with the top seat body.
According to an embodiment of the present utility model, the inner connecting member is provided with a piston rod connecting structure.
The utility model provides a shock absorber, install air spring subassembly on the shock absorber, air spring subassembly includes air spring dust cover, air spring package and above-mentioned air spring's dual seal footstock.
A vehicle in which the shock absorber described above is provided.
The utility model has the advantages that,
one side of the extrusion sealing part is in compression contact with the top seat main body, the other side of the extrusion sealing part is in compression contact with the sealing dust cover to form primary sealing, and secondary sealing is formed between the sealing dust cover and the top seat main body, so that the sealing part has excellent sealing performance due to large-volume rubber and high-strength extrusion; after the sealing installation block is installed, both end surfaces of the sealing installation block are in an elastic rubber matching state, so that the sealing installation block has good buffering and vibration absorbing capabilities; the service life of the matching parts is directly prolonged, and the comfort of driving and riding of the automobile is indirectly improved;
the secondary sealing ring is additionally arranged on the sealing dust cover, so that the unsealing phenomenon caused by various factors at the sealing installation block is prevented under the condition of almost not increasing the manufacturing cost, and the high pressure resistance and the strong impact resistance of the air spring top seat are directly improved.
Drawings
The utility model will be further described with reference to the drawings and examples.
FIG. 1 is a schematic diagram of the overall structure of a shock absorber;
FIG. 2 is a schematic diagram of a main body structure of the shock absorber;
FIG. 3 is a schematic diagram of an air spring construction;
FIG. 4 is a schematic view of a primary seal structure;
fig. 5 is an enlarged schematic view of an air spring at a double seal top seat.
Detailed Description
The following description is presented to enable one skilled in the art to practice the utility model and is provided only to enable the utility model. The embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art. The basic principles of the utility model defined in the following description may be applied to other embodiments, variations, modifications, equivalents, and other arrangements without departing from the spirit and scope of the utility model.
[ example 1 ]
The utility model provides an air spring's double seal footstock, like fig. 3, 5, including footstock main part 10, primary seal 11 and secondary seal 12, like fig. 4, primary seal 11 includes outer tube 101, seal installation piece 102 and interior connecting piece 103, seal installation piece 102 is including setting up the extrusion sealing portion 1021 of interior connecting piece 103 both sides, preferably, seal installation piece 102 is annular structure, inside is provided with the mounting groove position that is used for installing interior connecting piece 103, seal installation piece 102 and interior connecting piece 103 are installed in outer tube 101, seal installation piece 102 is rubber, outer tube 101 is the metal material, adopts metal rubber vulcanization to combine the mode to connect. The outer tube 101 is installed in the footstock main body 10 in an interference fit manner, the secondary sealing element 12 comprises a sealing dust cover 121, the sealing dust cover 121 is tightly matched on the footstock main body 10, one side of the extrusion sealing parts 1021 on two sides is in compression contact with the footstock main body 10, the other side of the extrusion sealing parts 1021 is in compression contact with the sealing dust cover 121 to form a first seal, and the sealing dust cover 121 and the footstock main body 10 form a secondary seal.
One side of the compression seal 1021 is in compression contact with the top seat body 10, which not only performs a sealing function, but also performs a cushioning function during assembly and use.
Specifically, as shown in fig. 1 and 3, the top seat main body 10 is provided with a mounting stepped hole, the primary sealing member 11 is mounted in the inner stepped hole, the sealing dust cover is mounted in the outer stepped hole, the diameter of the outer stepped hole is larger than that of the inner stepped hole, the secondary sealing member 12 further comprises at least one sealing ring 122, the sealing ring 122 is arranged between the sealing dust cover 121 and the top seat main body 10, and the secondary sealing effect is better after extrusion deformation.
Further, a seal ring mounting groove 123 is provided on the seal dust cover 121 and/or the top base body 10 for mounting an O-ring.
As shown in fig. 5, the sealing dust cover 121 is made of a metal workpiece with reliable strength, the outer circumference of the outer side is in clearance fit with the top seat main body 10, and the sealing dust cover is limited by adopting an opening single-clamp spring structure.
As shown in fig. 4, the inner connector 103 is provided with a piston rod connecting structure, which comprises an inner hole for passing through a piston rod, and the piston rod is in clearance fit with the inner hole and is fixed by using a nut.
A damper, as shown in fig. 1 and 2, an air spring assembly is mounted on the damper 8, and the air spring assembly includes an air spring dust cover 1, an air spring package 2 and the air spring double-seal top seat 100.
Specifically, the shock absorber main body comprises an outer cylinder 3, a piston valve assembly 4, a floating piston 5, a guide assembly 6 and a bottom cover 7, wherein compressed gas cavities and oil cavities are respectively arranged on two sides of the floating piston 5 in the outer cylinder 3, compressed nitrogen is arranged in the compressed gas cavities, an air spring package 2 assembly in the air spring assembly is arranged on the outer cylinder 3, a piston rod is connected with the piston valve assembly 4, the piston rod is in clearance fit with an inner hole, and the piston rod is locked on an inner connecting piece 103 by adopting a nut.
A vehicle in which the shock absorber described above is provided.
It will be appreciated by persons skilled in the art that the embodiments of the utility model described above and shown in the drawings are by way of example only and are not limiting. The objects of the present utility model have been fully and effectively achieved. The functional and structural principles of the present utility model have been shown and described in the examples and embodiments of the utility model are susceptible to any variations and modifications without departing from the principles.
Claims (10)
1. The utility model provides an air spring's dual seal footstock which characterized in that: including footstock main part (10), primary seal spare (11) and secondary seal spare (12), primary seal spare (11) include outer tube (101), seal installation piece (102) and interior connecting piece (103), seal installation piece (102) are including setting up extrusion sealing portion (1021) of interior connecting piece (103) both sides, seal installation piece (102) and interior connecting piece (103) are installed in outer tube (101), outer tube (101) are installed in footstock main part (10), secondary seal spare (12) include sealed shield (121), sealed shield (121) close fit is in on footstock main part (10), both sides extrusion sealing portion (1021) one side and footstock main part (10) compression contact, the opposite side extrusion sealing portion (1021) with sealed shield (121) compression contact forms first seal, sealed shield (121) with form the secondary seal between footstock main part (10).
2. The dual seal top mount for an air spring as set forth in claim 1 wherein: the secondary seal (12) further comprises a sealing ring (122), and the sealing ring (122) is arranged between the sealing dust cover (121) and the top seat main body (10).
3. The dual seal top mount for an air spring as set forth in claim 2 wherein: and a sealing ring mounting groove (123) is formed in the sealing dust cover (121) and/or the top seat main body (10).
4. A double-seal top seat of an air spring according to any one of claims 1-3, wherein: the seal mounting block (102) is of an annular structure, and a mounting groove for mounting the inner connecting piece (103) is formed in the seal mounting block.
5. The dual seal top mount for an air spring as set forth in claim 4 wherein: the sealing installation block (102) is fixedly connected with the outer tube (101).
6. The dual seal top mount for an air spring as set forth in claim 5 wherein: the sealing installation block (102) is made of rubber, and the outer tube (101) is made of metal and is connected in a metal rubber vulcanization combination mode.
7. An air spring double seal top seat according to any one of claims 1-3, 5, 6, wherein: the outer tube (101) is in interference fit with the top seat main body (10).
8. The dual seal top mount for an air spring as set forth in claim 7 wherein: a piston rod connecting structure is arranged on the inner connecting piece (103).
9. A shock absorber, characterized in that: an air spring assembly is mounted on the shock absorber, and the air spring assembly comprises an air spring dust cover (1), an air spring pack (2) and the double-sealing top seat of the air spring of any one of claims 1-8.
10. A vehicle, characterized in that: the shock absorber as set forth in claim 9 is provided in the vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322424570.0U CN220726953U (en) | 2023-09-07 | 2023-09-07 | Double-sealing top seat of air spring, damper and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322424570.0U CN220726953U (en) | 2023-09-07 | 2023-09-07 | Double-sealing top seat of air spring, damper and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220726953U true CN220726953U (en) | 2024-04-05 |
Family
ID=90492152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322424570.0U Active CN220726953U (en) | 2023-09-07 | 2023-09-07 | Double-sealing top seat of air spring, damper and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220726953U (en) |
-
2023
- 2023-09-07 CN CN202322424570.0U patent/CN220726953U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |