CN219866034U - Self-resetting damper - Google Patents
Self-resetting damper Download PDFInfo
- Publication number
- CN219866034U CN219866034U CN202320923521.9U CN202320923521U CN219866034U CN 219866034 U CN219866034 U CN 219866034U CN 202320923521 U CN202320923521 U CN 202320923521U CN 219866034 U CN219866034 U CN 219866034U
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- China
- Prior art keywords
- cylinder body
- oil
- piston
- self
- healing
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- 238000007789 sealing Methods 0.000 claims abstract description 28
- 238000000926 separation method Methods 0.000 claims abstract description 17
- 238000013016 damping Methods 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 239000012530 fluid Substances 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Fluid-Damping Devices (AREA)
Abstract
The utility model discloses a self-resetting damper which comprises a cylinder body, a piston rod, a piston and an oil-gas separation assembly, wherein the piston rod is axially arranged along the cylinder body, partially extends out of the first end of the cylinder body, the piston is connected with the piston rod and is in sliding sealing fit with the inner wall of the cylinder body, the oil-gas separation assembly is arranged in the second end of the cylinder body, damping liquid is filled in an oil cavity between the oil-gas separation assembly and the first end of the cylinder body, at least one oil passing hole is formed in the piston, and a return piece is arranged between the piston and the first end of the cylinder body. The self-resetting damping device provided by the utility model can realize automatic resetting.
Description
Technical Field
The utility model relates to the technical field of dampers, in particular to a self-resetting damping device.
Background
A damper is a device for providing movement resistance and reducing movement energy. The existing liquid damper comprises a cylinder body, a piston rod axially arranged along the cylinder body and extending out of the cylinder body, and a piston connected with the piston rod, wherein damping liquid is filled in the cylinder body, and when the piston rod is stretched, damping force is generated by the damping liquid to play a role in buffering. However, when the stretching movement is finished, the piston rod cannot be automatically reset to the original position.
The present utility model has been made in order to solve the above-mentioned problems.
Disclosure of Invention
Based on the problems, the utility model aims to provide a self-resetting damper which can realize automatic resetting of a piston.
In order to solve the problems in the prior art, the technical scheme provided by the utility model is as follows:
the self-resetting damper comprises a cylinder body, a piston rod axially arranged along the cylinder body and partially extending to the outside of the first end of the cylinder body, a piston connected with the piston rod and in sliding sealing fit with the inner wall of the cylinder body, and an oil-gas separation assembly arranged inside the second end of the cylinder body, wherein damping liquid is filled in an oil cavity between the oil-gas separation assembly and the first end of the cylinder body, at least one oil passing hole is formed in the piston, and a return piece is arranged between the piston and the first end of the cylinder body.
Further, a supporting seat for the piston rod to pass through is arranged inside the cylinder body, and an oil seal is arranged between the supporting seat and the first end of the cylinder body.
Further, the return piece is a spring sleeved on the piston rod, one end of the return piece is abutted with the supporting seat, and the other end of the return piece is abutted with the piston.
Further, a first sealing ring is arranged between the periphery of the piston and the cylinder body.
Further, the oil-gas separation assembly comprises a plug in sliding sealing fit with the cylinder body and an elastic piece arranged between the plug and the second end of the cylinder body.
Further, the elastic piece is a spring, one end of the elastic piece is abutted with the second end of the cylinder body, and the other end of the elastic piece is abutted with the plug.
Further, an oil inlet communicated to the oil cavity is formed in the plug, and a sealing piece is arranged in the oil inlet.
Further, the sealing element is in threaded connection with the oil inlet hole.
Further, a second sealing ring is arranged between one end, close to the elastic piece, of the sealing piece and the plug, and a third sealing ring is arranged between the periphery of the plug and the cylinder body.
Further, the outer end of the piston rod is provided with a first mounting ring, and the second end of the cylinder body is provided with a second mounting ring.
Compared with the prior art, the utility model has the advantages that:
1. a return piece is arranged between the piston and the cylinder body, so that the piston is convenient to reset after the damper is stretched, and automatic resetting of the damper is realized;
2. the oil cavity between the oil-gas separation assembly and the first end of the cylinder body is always in a full-oil state by arranging the oil-gas separation assembly, so that the phenomenon of damping deficiency caused by air flow at two sides of the piston is avoided;
3. a supporting seat is arranged in the first end of the cylinder body to support the piston rod, so that the stability of the damper can be improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, in which the drawings are only some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a directional control device according to an embodiment of the present utility model;
wherein:
1. a cylinder; 1-1, an oil cavity;
2. a piston rod;
3. a piston; 3-1, oil passing holes;
4. a return member;
5. a plug;
6. an elastic member;
7. a seal;
8. a support base;
9. an oil seal;
10. a first mounting ring;
11. a second mounting ring;
12. a first seal ring;
13. a second seal ring;
14. and a third sealing ring.
Detailed Description
The above-described aspects are further described below in conjunction with specific embodiments. It should be understood that these examples are illustrative of the present utility model and are not intended to limit the scope of the present utility model. The implementation conditions used in the examples may be further adjusted according to the conditions of the specific manufacturer, and the implementation conditions not specified are generally those in routine experiments.
Referring to fig. 1, for a schematic structural diagram of an embodiment of the present utility model, a self-restoring damper is provided, which includes a cylinder 1, a piston rod 2 axially arranged along the cylinder 1 and partially extending to the outside of a first end of the cylinder 1, a piston 3 connected with the piston rod 2 and slidably sealing-fitted with an inner wall of the cylinder 1, and an oil-gas separation assembly disposed inside a second end of the cylinder 1, wherein an oil cavity 1-1 between the oil-gas separation assembly and the first end of the cylinder 1 is filled with damping fluid, at least one oil passing hole 3-1 is disposed on the piston 3, and a return member 4 is disposed between the piston 3 and the first end of the cylinder 1.
In order to improve the stability of the movement of the piston rod 2, a support seat 8 for the piston rod 2 to pass through is arranged inside the cylinder 1, and an oil seal 9 is arranged between the support seat 8 and the first end of the cylinder 1.
In this example, the return member 4 is a spring sleeved on the piston rod 2, one end of the return member 4 is abutted against the supporting seat 8, and the other end is abutted against the piston 3.
A first sealing ring 12 is arranged between the periphery of the piston 3 and the inner wall of the cylinder body 1 to ensure the sliding sealing fit between the outer ring of the piston 3 and the cylinder body 1, so that damping fluid flows between the cavities at two sides of the piston 3 through the oil passing holes 3-1 on the piston 3.
The oil-gas separation assembly comprises a plug 5 in sliding sealing fit with the cylinder body 1 and an elastic piece 6 arranged between the plug 5 and the second end of the cylinder body 1, wherein the elastic piece 6 is a spring, one end of the elastic piece 6 is abutted against the second end of the cylinder body 1, and the other end of the elastic piece is abutted against the plug 5.
In order to facilitate filling of damping fluid into the oil cavity 1-1, an oil inlet communicated with the oil cavity 1-1 is arranged on the plug 5, meanwhile, a sealing piece 7 is arranged on the oil inlet, the sealing piece 7 is in threaded connection with the oil inlet, and after the damping fluid is filled, the sealing piece 7 is in threaded connection with the oil inlet to seal the oil inlet.
In order to improve the tightness of the oil inlet, a second sealing ring 13 is arranged between one end of the sealing element 7, which is close to the elastic element 6, and the plug 5. In order to ensure the sliding sealing fit of the plug 5 and the cylinder 1, a third sealing ring 14 is arranged between the periphery of the plug 5 and the inner wall of the cylinder 1.
In order to facilitate the installation of the damper, a first mounting ring 1O is provided at the outer end of the piston rod 2 and a second mounting ring 11 is provided at the second end of the cylinder 1, preferably the first mounting ring 1O is in threaded connection with the piston rod 2 and the second mounting ring 11 is in threaded connection with the cylinder 1.
The working principle of the embodiment is as follows:
when the piston rod 2 is pulled out, the return piece 4 is compressed, and if the piston rod 2 is released at the moment, the return piece 4 pushes the piston rod 2 back into the cylinder body 1 to realize automatic return of the piston 3; in the process that the piston rod 2 is pulled out, the volume of a cavity between the oil-gas separation assembly and the first end of the cylinder body 1 is increased, and the elastic piece 6 pushes the plug 5 to move towards the first end of the cylinder body 1; in the process that the piston rod 2 is pulled back, the volume of the cavity between the oil-gas separation assembly and the first end of the cylinder body 1 is reduced, and the elastic piece 6 can push the plug 5 to move towards the second end of the cylinder body 1, so that the oil cavity 1-1 between the oil-gas separation assembly and the first end of the cylinder body 1 is in an oil-full state, and the phenomenon of damping deficiency caused by air flowing from the oil passing hole 3-1 of the piston 3 is avoided.
In conclusion, the damper can realize automatic resetting, and the practicability of the damper is improved.
The above examples are provided for illustrating the technical concept and features of the present utility model and are intended to enable those skilled in the art to understand the contents of the present utility model and to implement the same, and are not intended to limit the scope of the present utility model. All equivalent changes or modifications made according to the spirit of the present utility model should be included in the scope of the present utility model.
Claims (10)
1. From attenuator that resets, its characterized in that: the hydraulic cylinder comprises a cylinder body, a piston rod axially arranged along the cylinder body and partially extending to the outside of the first end of the cylinder body, a piston connected with the piston rod and in sliding sealing fit with the inner wall of the cylinder body, and an oil-gas separation assembly arranged inside the second end of the cylinder body, wherein damping liquid is filled in an oil cavity between the oil-gas separation assembly and the first end of the cylinder body, at least one oil passing hole is formed in the piston, and a return piece is arranged between the piston and the first end of the cylinder body.
2. The self-healing damper according to claim 1, wherein: the cylinder body is internally provided with a supporting seat for the piston rod to pass through, and an oil seal is arranged between the supporting seat and the first end of the cylinder body.
3. A self-healing damper according to claim 2, wherein: the return piece is a spring sleeved on the piston rod, one end of the return piece is abutted with the supporting seat, and the other end of the return piece is abutted with the piston.
4. The self-healing damper according to claim 1, wherein: a first sealing ring is arranged between the periphery of the piston and the cylinder body.
5. The self-healing damper according to claim 1, wherein: the oil-gas separation assembly comprises a plug matched with the cylinder body in a sliding sealing mode and an elastic piece arranged between the plug and the second end of the cylinder body.
6. The self-healing damper according to claim 5, wherein: the elastic piece is a spring, one end of the elastic piece is abutted with the second end of the cylinder body, and the other end of the elastic piece is abutted with the plug.
7. The self-healing damper according to claim 5, wherein: and the plug is provided with an oil inlet communicated with the oil cavity, and the oil inlet is provided with a sealing element.
8. The self-healing damper of claim 7, wherein: the sealing piece is in threaded connection with the oil inlet hole.
9. The self-healing damper of claim 8, wherein: and a second sealing ring is arranged between one end, close to the elastic piece, of the sealing piece and the plug, and a third sealing ring is arranged between the periphery of the plug and the cylinder body.
10. The self-healing damper according to claim 1, wherein: the outer end of the piston rod is provided with a first mounting ring, and the second end of the cylinder body is provided with a second mounting ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320923521.9U CN219866034U (en) | 2023-04-23 | 2023-04-23 | Self-resetting damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320923521.9U CN219866034U (en) | 2023-04-23 | 2023-04-23 | Self-resetting damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219866034U true CN219866034U (en) | 2023-10-20 |
Family
ID=88368171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320923521.9U Active CN219866034U (en) | 2023-04-23 | 2023-04-23 | Self-resetting damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219866034U (en) |
-
2023
- 2023-04-23 CN CN202320923521.9U patent/CN219866034U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |