CN213360917U - Annular shock absorber and damper assembly - Google Patents
Annular shock absorber and damper assembly Download PDFInfo
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- CN213360917U CN213360917U CN202021654343.7U CN202021654343U CN213360917U CN 213360917 U CN213360917 U CN 213360917U CN 202021654343 U CN202021654343 U CN 202021654343U CN 213360917 U CN213360917 U CN 213360917U
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Abstract
The application discloses an annular shock absorber and a shock absorption assembly, which comprise an annular cylinder body and an annular piston rod, wherein the annular piston rod is telescopic relative to the annular cylinder body; a floating oil seal is movably arranged in the sealed annular cavity and divides the sealed annular cavity into a buffer chamber and a rebound chamber; the lower end of the annular piston rod is inserted into the buffer chamber, and the buffer chamber is filled with buffer media to provide resistance for the annular piston rod during stretching; high-pressure gas is stored in the rebound chamber, and when the annular piston rod pushes the floating oil seal, the high-pressure gas pushes the floating oil seal to provide reverse elasticity for the annular piston rod. The utility model discloses an annular shock absorber, barrel and piston rod all set up to the annular, make the shock absorber center form hollow structure, have reduced the space and have occupy, and is lower to the requirement of arranging the space, and application scope is wider.
Description
Technical Field
The application relates to the technical field of shock absorption, in particular to an annular shock absorber and a shock absorption assembly.
Background
The shock absorber generally comprises a piston rod and a shock absorber outer cylinder, wherein the piston rod can stretch out and draw back relative to the shock absorber outer cylinder, the whole shock absorber in the prior art is of a solid structure and can only be arranged in relatively independent space, and other parts cannot be arranged in the middle of the shock absorber. The requirement on space is high.
With the compactness of the mechanical structure, the arrangement space of the shock absorber is more and more limited, and the shock absorber which is solid as a whole cannot be arranged in some structures.
SUMMERY OF THE UTILITY MODEL
The utility model provides an aim at overcomes among the prior art bumper shock absorber and arranges the higher not enough of space requirement, provides an annular bumper shock absorber and damper assembly that can be applicable to different arrangement space requirements.
The technical scheme of the application provides an annular shock absorber which comprises an annular cylinder body and an annular piston rod, wherein the annular piston rod is telescopic relative to the annular cylinder body;
a floating oil seal is movably arranged in the sealed annular cavity and divides the sealed annular cavity into a buffer chamber and a rebound chamber;
the lower end of the annular piston rod is inserted into the buffer chamber, and the buffer chamber is filled with buffer media to provide resistance for the annular piston rod during stretching;
high-pressure gas is stored in the rebound chamber, and when the annular piston rod pushes the floating oil seal, the high-pressure gas pushes the floating oil seal to provide reverse elasticity for the annular piston rod.
Further, the annular cylinder comprises an inner cylinder and an outer cylinder which is sleeved outside the inner cylinder in a stacking mode, the inner cylinder is of a hollow structure, and the sealed annular cavity is formed between the inner cylinder and the outer cylinder.
Further, the lower end of the sealed annular cavity is sealed by a bottom ring, and the inner cylinder, the outer cylinder, the bottom ring and the floating oil seal enclose the bounce chamber;
the lower end of the annular piston rod is inserted from the upper end of the sealed annular cavity, the upper end of the sealed annular cavity is sealed through a sealing ring, and the inner cylinder, the outer cylinder, the sealing ring and the floating oil seal enclose the buffer chamber.
Further, the sealing ring is in clearance fit with the annular piston rod, the inner cylinder and the outer cylinder.
Further, the lower extreme of annular piston rod is provided with the piston ring, the piston ring with the inner wall clearance fit of buffer chamber, and will the buffer chamber is separated for last cavity and lower cavity, be provided with a plurality of intercommunications on the piston ring go up the cavity with the valve opening of cavity down.
Further, a cylinder connecting part is arranged at the lower end of the annular cylinder; and the upper end of the annular piston rod is provided with a piston connecting part.
Furthermore, the connecting part of the cylinder body is a connecting flange, a connecting screw hole, a clamping ring or a clamping hoop;
the piston connecting part is a connecting flange, a connecting screw hole, a clamping ring or a clamping hoop.
Further, the annular cylinder and the annular piston rod are both annular, or
The annular cylinder body and the annular piston rod are both polygonal annular.
Further, the buffer medium is damping oil.
The technical scheme of the application also provides a shock absorption assembly, which comprises a first part and a second part which can move relatively, and the annular shock absorber;
the annular cylinder is connected with the first component, and the annular piston rod is connected with the second component.
The utility model discloses an annular shock absorber, barrel and piston rod all set up to the annular, make the shock absorber center form hollow structure, have reduced the space and have occupy, and is lower to the requirement of arranging the space, and application scope is wider.
Drawings
The disclosure of the present application will become more readily understood by reference to the drawings. It should be understood that: these drawings are for illustrative purposes only and are not intended to limit the scope of the present application. In the figure:
FIG. 1 is a perspective view of an annular shock absorber in an embodiment of the present application;
FIG. 2 is a cross-sectional view of an annular shock absorber in an embodiment of the present application.
Reference symbol comparison table:
the annular cylinder 10: the device comprises a sealing ring cavity 01, a buffer chamber 11, an upper chamber 111, a lower chamber 112, a rebound chamber 12, a floating oil seal 02, a cylinder connecting part 03, an inner cylinder 05, an outer cylinder 06, a bottom ring 07, a sealing ring 08, a piston ring 09 and a valve hole 91;
annular piston rod 20: the piston connecting portion 04.
Detailed Description
Embodiments of the present application are further described below with reference to the accompanying drawings.
It is easily understood that according to the technical solutions of the present application, those skilled in the art can substitute various structures and implementations without changing the spirit of the present application. Therefore, the following detailed description and the accompanying drawings are merely illustrative of the technical solutions of the present application, and should not be construed as limiting or restricting the technical solutions of the present application in their entirety.
The terms of orientation of up, down, left, right, front, back, top, bottom, and the like referred to or may be referred to in this specification are defined relative to the configuration shown in the drawings, and are relative terms, and thus may be changed correspondingly according to the position and the use state of the device. Therefore, these and other directional terms should not be construed as limiting terms. 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.
Throughout the description of the present application, it is to be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "coupled" 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; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The foregoing is to be understood as belonging to the specific meanings in the present application as appropriate to the person of ordinary skill in the art.
The annular shock absorber in the embodiment of the present application, as shown in fig. 1 and 2, includes an annular cylinder 10 and an annular piston rod 20 that is retractable with respect to the annular cylinder 10, wherein a sealing ring cavity 01 is provided in the annular cylinder 10;
a floating oil seal 02 is movably arranged in the sealing ring cavity 01, and the floating oil seal 02 divides the sealing ring cavity 01 into a buffer chamber 11 and a rebound chamber 12;
the lower end of the annular piston rod 20 is inserted into the buffer chamber 11, and the buffer chamber 11 is filled with buffer media to provide resistance for the extension and contraction of the annular piston rod 20;
the rebound chamber 12 stores high-pressure gas, and when the annular piston rod 20 pushes the floating oil seal 02, the high-pressure gas pushes the floating oil seal 02 to provide reverse elasticity for the annular piston rod 50.
The annular cylinder 10 and the annular piston rod 20 shown in fig. 1 and 2 are both circular rings, alternatively, the annular cylinder 10 and the annular piston rod 20 may also be both polygonal rings, and it should be noted that when the annular piston rod 20 and the annular cylinder 10 are polygonal rings, the number of sides of the two should be the same.
The central area of the annular cylinder 10 is a hollow structure, a sealing ring cavity 01 is arranged in the annular cylinder 10, the annular piston rod 20 is partially inserted into the buffer chamber 11 of the sealing ring cavity 01, and the annular piston rod 20 can extend and retract relative to the annular cylinder 10 in the axial direction L.
The sealed annular cavity 01 is divided into a buffer chamber 11 and a rebound chamber 12 by a floating oil seal 02, buffer media such as damping oil liquid are filled in the buffer chamber 11, and when the annular piston rod 20 moves in the buffer chamber 11, the damping oil liquid provides resistance for the annular piston rod 20 to slow down the movement speed of the annular piston rod 20.
The floating oil seal 02 is closely attached to the inner wall of the sealing annular cavity 01 and can move along the axial direction of the sealing annular cavity 01 under the pressure of high-pressure gas in the rebound chamber 12. When the annular piston rod 20 moves in the buffer chamber 11 to push the floating oil seal 02, the floating oil seal 02 extrudes high-pressure gas in the bounce chamber 12, and the high-pressure gas pushes the floating oil seal 02 reversely due to the high pressure in the bounce chamber 12, so that the floating oil seal 02 pushes the annular piston rod 20 to be far away from the floating oil seal 02.
The high-pressure gas can be nitrogen or other gases with stable chemical properties such as inert gases and the like, so that the safety performance of the shock absorber is improved.
The ring damper is connected to two relatively movable members, for example, fig. 1 shows that the lower end of the ring cylinder 10 is provided with a cylinder connecting portion 03; the upper end of the annular piston rod 20 is provided with a piston connecting portion 04. The cylinder connecting part 03 and the piston connecting part 04 shown in fig. 1 are both flanges, and the flanges are provided with connecting screw holes. Two relatively movable parts are connected to the cylinder connection 03 and the piston connection 04, respectively, and the annular piston rod 20 extends and retracts in the buffer chamber 11, so that the two objects are damped.
Optionally, the barrel connecting part 03 can be further configured as a snap ring or a clamp; the piston connecting portion 04 may be a snap ring or a clip.
Further, as shown in fig. 2, the annular cylinder 10 includes an inner cylinder 05 and an outer cylinder 06 nested outside the inner cylinder 05, the inner cylinder 05 is a hollow structure, and a sealed annular cavity 01 is formed between the inner cylinder 05 and the outer cylinder 06.
The annular shock absorber is integrally of a tubular structure, the interior of the annular shock absorber is communicated up and down, and a sealing ring cavity 01 is formed between the inner cylinder 05 and the outer cylinder 06 in a surrounding mode.
The lower end of the sealing ring cavity 01 is sealed by a bottom ring 07, and a rebound chamber 12 is enclosed by the inner cylinder 05, the outer cylinder 06, the bottom ring 07 and the floating oil seal 02;
the lower end of the annular piston rod 20 is inserted from the upper end of the sealing ring cavity 01, the upper end of the sealing ring cavity 01 is sealed by a sealing ring 08, and the inner cylinder 05, the outer cylinder 06, the sealing ring 08 and the floating oil seal 02 form a buffer 11 chamber.
Preferably, the bottom ring 07, the inner cylinder 05 and the outer cylinder 06 are integrally formed to ensure the sealing effect of the bottom ring 07, facilitate the manufacturing and improve the structural integrity, and the cylinder connecting portion 03 can also be integrally formed with the annular cylinder 10.
The upper end of the sealing ring cavity 01 is inserted into the annular piston rod 20, so that the gap between the annular piston rod 20 and the outer wall of the inner cylinder 05 and the inner wall of the outer cylinder 06 is sealed by the sealing ring 08.
The sealing ring 08 is in clearance fit with the annular piston rod 20, the inner cylinder 05 and the outer cylinder 06, preferably, the sealing gap between the sealing ring 08 and the inner cylinder 05 and the outer cylinder 05 is 0mm, the sealing gap between the sealing ring 08 and the annular piston rod 20 is smaller than 1mm, lubricating oil can be filled in the sealing gap, the sealed annular cavity 01 can be sealed, and the up-and-down stretching of the annular piston rod 20 is not influenced.
Further, a piston ring 09 is provided at a lower end of the annular piston rod 20, the piston ring 09 is in clearance fit with an inner wall of the buffer chamber 11 and divides the buffer chamber 11 into an upper chamber 111 and a lower chamber 112, and a plurality of valve holes 91 communicating the upper chamber 111 and the lower chamber 112 are provided in the piston ring 09.
The piston ring 09 moves along the axial direction of the annular cylinder 10 along the inner wall of the buffer chamber 11, and the piston ring 09 is in clearance fit with the buffer chamber 11, so that the resistance of the piston ring 09 to a buffer medium in the movement process is increased. Further, the piston ring 09 is provided with a plurality of valve holes 91 so that the buffer medium can flow between the upper chamber 111 and the lower chamber 112 and the piston ring 09 can move smoothly.
Preferably, the valve hole 91 is arranged along the axial direction of the ring cylinder 10, and the valve holes 91 are arranged in two rows, each row of the valve holes 91 being arranged along the circumferential direction of the piston ring 09.
Annular shock absorber in this application embodiment, barrel and the piston rod that can relative motion all set up to annular structure, and occupation space is less, and is less to installation space's requirement, has improved annular shock absorber's suitability.
The buffer chamber and the rebound chamber are arranged in the sealed annular cavity of the annular cylinder body, when the annular piston rod extends into the bottom of the buffer chamber to touch the floating oil seal, the floating oil seal can rebound under the elastic action of the rebound chamber, and the shock absorption and buffering effects of the shock absorber are guaranteed.
The damping component is as follows:
the shock-absorbing assembly of the embodiment of the application comprises a first part and a second part which can move relatively, and the annular shock absorber;
the annular cylinder is connected with the first component, and the annular piston rod is connected with the second component.
In the embodiment of the application, the first part and the second part are connected through the annular shock absorber, and the damping effect is realized on the relative movement between the first part and the second part. And, the part of first part or the part of second part can stretch into the inside of annular barrel, makes overall structure compacter.
What has been described above is merely the principles and preferred embodiments of the present application. It should be noted that, for a person skilled in the art, several other modifications can be made on the basis of the principle of the present application, and these should also be considered as the scope of protection of the present application.
Claims (10)
1. The annular shock absorber is characterized by comprising an annular cylinder body and an annular piston rod which can stretch relative to the annular cylinder body, wherein a sealed annular cavity is arranged in the annular cylinder body;
a floating oil seal is movably arranged in the sealed annular cavity and divides the sealed annular cavity into a buffer chamber and a rebound chamber;
the lower end of the annular piston rod is inserted into the buffer chamber, and the buffer chamber is filled with buffer media to provide resistance for the annular piston rod during stretching;
high-pressure gas is stored in the rebound chamber, and when the annular piston rod pushes the floating oil seal, the high-pressure gas pushes the floating oil seal to provide reverse elasticity for the annular piston rod.
2. The annular shock absorber of claim 1, wherein the annular cylinder comprises an inner cylinder and an outer cylinder that is nested outside the inner cylinder, the inner cylinder is a hollow structure, and the sealed annular cavity is formed between the inner cylinder and the outer cylinder.
3. The annular shock absorber of claim 2, wherein the lower end of the sealed annular chamber is sealed by a bottom ring, the inner cylinder, the outer cylinder, the bottom ring and the floating oil seal enclosing the bounce chamber;
the lower end of the annular piston rod is inserted from the upper end of the sealed annular cavity, the upper end of the sealed annular cavity is sealed through a sealing ring, and the inner cylinder, the outer cylinder, the sealing ring and the floating oil seal enclose the buffer chamber.
4. The annular shock absorber of claim 3, wherein the seal ring is a clearance fit with each of the annular piston rod, the inner cylinder and the outer cylinder.
5. The ring damper according to claim 1, wherein a piston ring is provided at a lower end of the ring piston rod, the piston ring being in clearance fit with an inner wall of the buffer chamber and dividing the buffer chamber into an upper chamber and a lower chamber, the piston ring being provided with a plurality of valve holes communicating the upper chamber and the lower chamber.
6. The annular shock absorber according to any one of claims 1 to 5, wherein a cylinder connecting portion is provided at a lower end of the annular cylinder; and the upper end of the annular piston rod is provided with a piston connecting part.
7. The annular shock absorber of claim 6, wherein the barrel attachment portion is a connection flange, or a connection screw, or a snap ring, or a clip;
the piston connecting part is a connecting flange, a connecting screw hole, a clamping ring or a clamping hoop.
8. The annular shock absorber of any of claims 1-5, wherein the annular cylinder and the annular piston rod are both annular in shape, or
The annular cylinder body and the annular piston rod are both polygonal annular.
9. The shock absorber as set forth in any one of claims 1-5 wherein the damping medium is a damping oil.
10. A shock assembly comprising first and second relatively movable parts and an annular shock absorber according to any one of claims 1 to 9;
the annular cylinder is connected with the first component, and the annular piston rod is connected with the second component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021654343.7U CN213360917U (en) | 2020-08-11 | 2020-08-11 | Annular shock absorber and damper assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021654343.7U CN213360917U (en) | 2020-08-11 | 2020-08-11 | Annular shock absorber and damper assembly |
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| Publication Number | Publication Date |
|---|---|
| CN213360917U true CN213360917U (en) | 2021-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021654343.7U Active CN213360917U (en) | 2020-08-11 | 2020-08-11 | Annular shock absorber and damper assembly |
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| CN (1) | CN213360917U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116972102A (en) * | 2023-09-25 | 2023-10-31 | 四川川西数据产业有限公司 | Shockproof and anti-shake server support |
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2020
- 2020-08-11 CN CN202021654343.7U patent/CN213360917U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116972102A (en) * | 2023-09-25 | 2023-10-31 | 四川川西数据产业有限公司 | Shockproof and anti-shake server support |
| CN116972102B (en) * | 2023-09-25 | 2023-12-22 | 四川川西数据产业有限公司 | Shockproof and anti-shake server support |
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