CN220248780U - Shock absorber pillar assembly with air spring - Google Patents
Shock absorber pillar assembly with air spring Download PDFInfo
- Publication number
- CN220248780U CN220248780U CN202321255999.5U CN202321255999U CN220248780U CN 220248780 U CN220248780 U CN 220248780U CN 202321255999 U CN202321255999 U CN 202321255999U CN 220248780 U CN220248780 U CN 220248780U
- Authority
- CN
- China
- Prior art keywords
- shock absorber
- air spring
- piston
- air bag
- air
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- 230000035939 shock Effects 0.000 title claims description 51
- 239000006096 absorbing agent Substances 0.000 title claims description 50
- 238000007789 sealing Methods 0.000 claims abstract description 25
- 239000000945 filler Substances 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 description 7
- 230000001681 protective effect Effects 0.000 description 6
- 239000007788 liquid Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Abstract
A damper strut assembly with an air spring comprises a damper and an air spring assembly with one end pressed and sealed outside the damper, a piston rod of the damper penetrates through the other end of the air spring assembly and is connected with the air spring assembly in a sealing mode, the air spring assembly and the damper encircle to form a sealed air cavity, a filling part used for filling the air cavity is arranged in the air cavity, the air spring assembly comprises a first-stage air bag, a piston buckled and sealed at one end of the first-stage air bag, an upper support buckled and sealed at the other end of the first-stage air bag, one side of the piston, far away from the first-stage air bag, is pressed and sealed outside the damper, the filling part comprises a second-stage air bag and a filler located in the second-stage air bag, one end of the second-stage air bag is of an elastic cylindrical structure, one end of the second-stage air bag is connected with the outer side of the damper in a sealing mode, and the other end of the second-stage air bag is connected with the inner wall of the piston in a sealing mode, and the second-stage air bag, the piston and the damper encircle to form an adjusting cavity used for placing the filler.
Description
Technical Field
The utility model relates to the technical field of shock absorption, in particular to a shock absorber strut assembly with an air spring.
Background
The air spring damper is widely applied to a vehicle suspension system due to good operability and comfort, and mainly comprises an air spring and a damper, wherein a piston part in the air spring is pressed and sealed with the damper, so that the original air spring structure is required to be destroyed or a new air spring structure is required to be produced in order to experimentally detect the rigidity characteristic of the damper corresponding to the air spring assembly when the air spring assembly is deformed to change the air volume or the air spring assembly with different air volumes is developed, and the test detection period of a product and the development period of a corresponding new product are greatly prolonged.
Disclosure of Invention
The utility model aims to solve the problems in the prior art, and provides the shock absorber support assembly with the air spring, which can be used for rapidly and nondestructively adjusting the air volume in the air spring assembly and accelerating the development period of new products.
The utility model solves the technical problems by adopting the technical scheme that: the damper post assembly with the air spring comprises a damper and an air spring assembly, wherein one end of the air spring assembly is pressed and sealed on the outer side of the damper, a piston rod of the damper penetrates through the other end of the air spring assembly and is connected with the air spring assembly in a sealing mode, the air spring assembly and the damper encircle to form a sealed air chamber, and a filling part for adjusting the gas volume of the air chamber is arranged in the air chamber.
Preferably, the air spring assembly comprises a primary air bag, a piston buckled and sealed at one end of the primary air bag, and an upper support buckled and sealed at the other end of the primary air bag, wherein one side of the piston away from the primary air bag is pressed and installed at the outer side of the shock absorber.
Preferably, the filling portion includes a secondary airbag and a filler located within the secondary airbag.
Preferably, one end of the secondary air bag is connected with the outer side of the shock absorber in a sealing way, the other end of the secondary air bag is connected with the inner wall of the piston in a sealing way, and the secondary air bag, the piston and the shock absorber surround a regulating cavity which is arranged in a sealing way and is used for placing the filler.
Preferably, the piston is provided with an inflation pressure maintaining valve communicated with the adjusting chamber.
Preferably, the secondary air bag is of a cylindrical structure, a first clamping ring for locking and sealing one end of the secondary air bag on the outer side of the shock absorber is arranged on the outer side of the shock absorber, and a second clamping ring for extruding and sealing the other end of the secondary air bag on the inner wall of the piston is arranged on the inner side of the piston.
Preferably, the outer surface of the shock absorber is provided with a limiting groove which is arranged corresponding to the first clamping ring, and the first clamping ring is arranged in the limiting groove.
Preferably, the piston is provided with a horizontal installation surface which is arranged in a shrinking manner, and the inflation pressure maintaining valve is vertically installed on the horizontal installation surface.
Preferably, the piston is provided with a vertical limiting surface which is positioned at the outer side of the inflation pressure maintaining valve and is parallel to the inflation pressure maintaining valve.
The beneficial effects of the utility model are as follows: the utility model has the filling part arranged in the air chamber of the air spring damper, and the gas volume in the air chamber is regulated nondestructively through the filling part, thereby avoiding the original need of damaging the original air spring structure or producing new air spring structures with different gas volumes, greatly shortening the development period of new products and being safer and more reliable in test.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic structural view of an air spring assembly.
Reference numerals illustrate: 1. the shock absorber comprises a shock absorber body, 2, an air spring assembly, 3, an air chamber, 4, a filling part, 2-1, a primary air bag, 2-2, a piston, 2-3, an upper support, 4-1, a secondary air bag, 5, an adjusting chamber, 6, an inflation pressure maintaining valve, 7, a first clamping ring, 8, a second clamping ring, 9, a limiting groove, 10, a horizontal mounting surface, 11, a vertical limiting surface, 12, a top seat assembly, 13 and a protective cover.
Detailed Description
The utility model is further described below with reference to the accompanying drawings:
the embodiment discloses a shock absorber pillar assembly with an air spring, which comprises a shock absorber 1 and an air spring assembly 2, wherein one end of the air spring assembly 2 is in press fit with the shock absorber 1 to realize sealing connection, and the other end of the air spring assembly is correspondingly in sealing connection with a piston rod of the shock absorber 1; specifically, referring to fig. 2, the air spring assembly 2 includes a primary air bag 2-1 capable of bearing a certain air pressure, a piston 2-2 and an upper support 2-3, the primary air bag 2-1 is in a cylindrical structure, one end of the primary air bag 2-1 is buckled and sealed on the outer side of the piston 2-2 through a clamp, the other end of the primary air bag 2-1 is buckled and sealed on the outer side of the upper support 2-3 through a clamp, wherein, one side of the piston 2-2 away from the primary air bag 2-1 is sealed on the outer side of the shock absorber 1 through a press-fitting mode, in order to further ensure tightness, a plurality of grooves are formed in a fixed end of the shock absorber 1 (i.e. one end of the press-fitting piston 2-2), sealing rings are arranged in the grooves in contact with the inner wall of the piston 2-2, three grooves are formed in the embodiment, the depth of the grooves on the outermost side is deepest, the diameter of the cross section of the sealing rings in the outermost grooves is also the largest, and further the elastic deformation quantity of the outermost sealing rings after press-fitting is the outermost sealing rings is largest, so that the piston 2-2 is deformed in the subsequent use process to lead to the inner two sealing rings to be unable to realize sealing.
A boss for limiting the piston 2-2 is arranged on the fixed end of the shock absorber 1, so that the relative position of the shock absorber 1 and the piston 2-2 is ensured to be stable during press fitting, a groove for installing the top seat assembly 12 is formed in the inner side of the upper end of the upper support 2-3, a piston rod of the shock absorber 1 penetrates out of the groove and is connected to the inner side of the top seat assembly 12 in a sealing manner, and the top seat assembly 12 can be in interference fit with the groove, so that the top seat assembly 12 and the groove form extrusion contact sealing;
referring to fig. 1, an air spring assembly 2 and a damper 1 are enclosed to form a sealed air chamber 3, and in order to achieve the purpose that the air spring assembly is deformed or the gas volume of the air spring is changed when different air spring assemblies are developed, a filling part 4 for adjusting the gas volume of the air chamber 3 is arranged in the air chamber 3 in the embodiment, and the purpose of changing the gas volume inside the air spring (namely, changing the gas volume of the air chamber 3) is achieved quickly by changing the volume of the filling part 4 without damaging the air spring assembly 2; wherein, the filling part 4 can comprise a secondary air bag 4-1 and a filler positioned in the secondary air bag 4-1, and the filling part 4 can be divided into a deformable filling part and a non-deformable filling part by adjusting the volume size from the filling part 4;
when the non-deformable filling part 4 is adopted, the filling part 4 can be an independent incompressible and expandable object, the filling part 4 can also be made by wrapping a non-compressible filling material with a volume by the secondary air bag 4-1, and the filling material can be foaming agent or incompressible liquid; when the deformable filling part 4 is adopted, the filling part 4 also adopts a structure that the filling material is wrapped by the secondary air bag 4-1, wherein the secondary air bag 4-1 can be made of an elastic material and is filled by incompressible liquid, and at the moment, the volume of the filling part 4 can be reduced and changed by injecting or discharging the liquid;
specifically, before the shock absorber is pressed, one end of the secondary air bag 4-1 is pressed and sealed on the inner wall of the piston 2-2 through the second clamping ring 8, then the other end of the secondary air bag 4-1 is locked and sealed on the outer side of the shock absorber 1 through the first clamping ring 7, then the shock absorber 1 is plugged into the piston 2-2, then the fixed end of the shock absorber 1 is pressed and sealed on the inner side of the piston 2-2, and further the secondary air bag 4-1, the piston 2-2 and the shock absorber 1 are surrounded to form a sealed adjusting cavity 5, and the adjusting cavity 5 is used for accommodating fillers, wherein the first clamping ring 7 and the second clamping ring 8 are of a circular clamp structure;
preferably, in order to avoid the sliding phenomenon of the secondary airbag 4-1 during inflation, as shown in fig. 1, a limiting groove 9 corresponding to the first clamping ring 7 is arranged on the outer surface of the shock absorber 1, the first clamping ring 7 is installed in the limiting groove 9, so as to limit the locked first clamping ring 7, and similarly, a second limiting groove protruding outwards can also be arranged on the piston 2-2 for limiting a second clamping ring 8 on the piston 2-2;
further, when the deformable filling part 4 is adopted, the inside of the secondary airbag 4-1 made of an elastic material can be filled by gas, namely, the gas in the cavity 5 is regulated, at the moment, in the use process of the air spring shock absorber, the air spring assembly 2 and the shock absorber 1 encircle to form the change of the gas volume in the sealed air cavity 3, the gas pressure outside the secondary airbag 4-1 is further changed, the corresponding volume change is also carried out on the secondary airbag 4-1 under the action of the internal gas pressure, namely, when the gas pressure in the air cavity 3 is increased and is greater than the gas pressure in the secondary airbag 4-1, the secondary airbag 4-1 is compressed and is reduced, so that the gas volume of the air cavity 3 is increased, and then the gas pressure in the air cavity 3 is correspondingly reduced, so that the rigidity of the air spring shock absorber is further regulated, as shown in fig. 1, in order to more conveniently regulate the volume of the filling part 4 filled with the air, the inflating valve 6 communicated with the regulating cavity 5 is arranged on the piston 2-2, the inflating valve 6 is used for regulating the volume of the gas in the air cavity 5, and the secondary airbag 4-1 is further regulated by the volume;
preferably, as shown in fig. 1 and 2, since the air spring damper is provided with a rigid protective cover 13 outside the primary airbag 2-1 when in use, a sharp object on the outside is prevented from scratching the primary airbag 2-1, and the protective cover 13 is sleeved outside the piston 2-2 and reciprocates when the air spring damper is in use, in order to prevent the movable protective cover 13 from contacting the inflation pressure maintaining valve 6, a horizontal mounting surface 10 which is arranged in a shrinking manner is arranged on the piston 2-2, and the inflation pressure maintaining valve 6 is vertically arranged on the horizontal mounting surface 10, so that the inflation pressure maintaining valve 6 is not arranged in the movable stroke of the protective cover 13, and the protective cover 13 is prevented from contacting the pressure maintaining valve 6;
further, in order to avoid bending or shifting after the inflation pressure maintaining valve 6 is impacted, a vertical limiting surface 11 which is located at the outer side of the inflation pressure maintaining valve 6 and is parallel to the inflation pressure maintaining valve 6 is arranged on the piston 2-2, when the inflation pressure maintaining valve 6 is impacted inwards from the outer side, the inflation pressure maintaining valve 6 is limited by the vertical limiting surface 11, so that the inflation pressure maintaining valve 6 is prevented from having a larger movable space, the inflation pressure maintaining valve 6 is prevented from bending or separating from the piston 2-2, the tightness stability of the secondary air bag 4-1 is ensured, and the vertical limiting surface 11 can be of a cylindrical structure and is integrally formed with the horizontal mounting surface 10 and the piston 2-2.
While the utility model has been shown and described with reference to a preferred embodiment, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the scope of the utility model.
Claims (9)
1. The utility model provides a take air spring's shock absorber pillar assembly, includes shock absorber (1) and one end pressure equipment seal air spring assembly (2) in shock absorber (1) outside, the piston rod of shock absorber (1) passes the other end of air spring assembly (2) and with air spring assembly (2) sealing connection, air spring assembly (2) and shock absorber (1) surround and form sealed air chamber (3), characterized by: the air chamber (3) has a filling part (4) therein for adjusting the gas volume of the air chamber (3).
2. A shock absorber strut assembly with an air spring as in claim 1, wherein: the air spring assembly (2) comprises a primary air bag (2-1), a piston (2-2) buckled and sealed at one end of the primary air bag (2-1), and an upper support (2-3) buckled and sealed at the other end of the primary air bag (2-1), wherein one side, far away from the primary air bag (2-1), of the piston (2-2) is pressed and installed at the outer side of the shock absorber (1).
3. A shock absorber strut assembly with an air spring as in claim 1, wherein: the filling part (4) comprises a secondary airbag (4-1) and a filler positioned in the secondary airbag (4-1).
4. A shock absorber strut assembly with an air spring as in claim 3, wherein: one end of the secondary air bag (4-1) is connected with the outer side of the shock absorber (1) in a sealing mode, the other end of the secondary air bag (4-1) is connected with the inner wall of the piston (2-2) in a sealing mode, and the secondary air bag (4-1), the piston (2-2) and the shock absorber (1) encircle to form a sealing adjusting cavity (5) used for placing fillers.
5. An air spring shock absorber strut assembly as in claim 4 wherein: an inflation pressure maintaining valve (6) communicated with the adjusting chamber (5) is arranged on the piston (2-2).
6. An air spring shock absorber strut assembly as in claim 4 wherein: the secondary air bag (4-1) is of a cylindrical structure, a first clamping ring (7) for locking and sealing one end of the secondary air bag (4-1) on the outer side of the shock absorber (1) is arranged on the outer side of the shock absorber (1), and a second clamping ring (8) for extruding and sealing the other end of the secondary air bag (4-1) on the inner wall of the piston is arranged on the inner side of the piston.
7. The air spring shock absorber strut assembly as in claim 6, wherein: the shock absorber is characterized in that a limiting groove (9) which is arranged corresponding to the first clamping ring (7) is formed in the outer surface of the shock absorber (1), and the first clamping ring (7) is arranged in the limiting groove (9).
8. An air spring shock absorber strut assembly as in claim 5 wherein: the piston (2-2) is provided with a horizontal installation surface (10) which is reduced inwards, and the inflation pressure maintaining valve (6) is vertically installed on the horizontal installation surface (10).
9. The air spring shock absorber strut assembly as in claim 8, wherein: the piston (2-2) is provided with a vertical limiting surface (11) which is positioned at the outer side of the inflation pressure maintaining valve (6) and is parallel to the inflation pressure maintaining valve (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321255999.5U CN220248780U (en) | 2023-05-23 | 2023-05-23 | Shock absorber pillar assembly with air spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321255999.5U CN220248780U (en) | 2023-05-23 | 2023-05-23 | Shock absorber pillar assembly with air spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220248780U true CN220248780U (en) | 2023-12-26 |
Family
ID=89234090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321255999.5U Active CN220248780U (en) | 2023-05-23 | 2023-05-23 | Shock absorber pillar assembly with air spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220248780U (en) |
-
2023
- 2023-05-23 CN CN202321255999.5U patent/CN220248780U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |