CN212377186U - Multistage series viscous fluid damper - Google Patents
Multistage series viscous fluid damper Download PDFInfo
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- CN212377186U CN212377186U CN202020268147.XU CN202020268147U CN212377186U CN 212377186 U CN212377186 U CN 212377186U CN 202020268147 U CN202020268147 U CN 202020268147U CN 212377186 U CN212377186 U CN 212377186U
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Abstract
The utility model relates to a multistage series viscous fluid damper, which comprises a cylinder body and a piston rod; at least one partition board is arranged in the master cavity of the cylinder body to divide the master cavity into at least two sub-cavities, and a damping medium and a piston are respectively arranged in each sub-cavity; the rear end of the piston rod is inserted into each sub-cavity and is fixedly connected with each piston respectively, so that the movement of the piston rod is blocked by each piston and the damping medium. The invention reduces the volume of the damper, increases the damping force, saves the cost, improves the application range of the product and has better comprehensive performance.
Description
Technical Field
The utility model relates to a multistage series viscous fluid damper.
Background
The viscous damper is manufactured according to the principle that fluid movement, particularly viscous resistance is generated when fluid passes through an orifice, and is widely applied to the fields of high-rise buildings, bridges, building structure anti-seismic reconstruction, industrial pipeline equipment anti-vibration, military industry and the like.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the defects of the prior art are overcome, the multistage series viscous fluid damper is provided, and the problem that in the prior art, when the damper with a small installation volume is needed, the damping force in the damper is small and does not meet actual needs is solved.
The utility model provides a technical scheme that its technical problem adopted is: a multistage series viscous fluid damper comprises a cylinder body and a piston rod;
at least one partition board is arranged in the master cavity of the cylinder body to divide the master cavity into at least two sub-cavities, and a damping medium and a piston are respectively arranged in each sub-cavity;
the rear end of the piston rod is inserted into each sub-cavity and is fixedly connected with each piston respectively, so that the movement of the piston rod is blocked by each piston and the damping medium.
Further, the piston rod extends out from the front end of the cylinder body, and a first sealing piece is arranged between the cylinder body and the piston rod to prevent damping media in the front end cavity from leaking.
Furthermore, a rear pin head is arranged at the rear end of the cylinder body, and a front pin head is formed at the front end of the piston rod.
Furthermore, a protective cover is arranged at the front end of the cylinder body, and the piston rod penetrates out of the protective cover.
Furthermore, four partition plates are arranged in the female chamber of the cylinder body to divide the female chamber into five sub-chambers.
Further, no piston is arranged in the sub-chamber at the most front end.
Further, a second sealing member is arranged between the partition plate and the piston rod to prevent the damping medium between two adjacent sub-chambers from flowing.
The utility model has the advantages that:
the utility model provides a multistage series connection viscous fluid damper, through set up a plurality of baffles in the cylinder body, make a plurality of baffles and hydro-cylinder enclose to close and form a plurality of subchambers, and be provided with damping medium and piston in a plurality of subchambers respectively, make the piston rod receive blockking of a plurality of pistons and damping medium at the in-process that removes, thereby improved the holistic damping force of piston rod, reached and installed the attenuator in less space, and this attenuator inner chamber is less, can provide great damping force.
The invention reduces the volume of the damper, increases the damping force, saves the cost, improves the application range of the product and has better comprehensive performance.
Drawings
The present invention will be further explained with reference to the accompanying drawings.
FIG. 1 is a perspective view of the damper of the present invention;
FIG. 2 is a semi-sectional view of the damper of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
the damping device comprises a cylinder body 1, a cylinder body 2, a protective cover 3, a rear pin head 4, a front pin head 5, a mounting hole 6, a partition plate 7, a piston rod 8, a sub-chamber 9, a damping medium 10, a piston 11 and a first sealing element.
Detailed Description
The invention will now be further described with reference to the accompanying drawings. The drawings are simplified schematic diagrams only illustrating the basic structure of the present invention in a schematic manner, and thus show only the components related to the present invention.
As shown in fig. 1 to 3, a multistage series viscous fluid damper includes a cylinder 1 and a piston rod 7;
at least one partition plate 6 is arranged in a mother chamber of the cylinder body 1 to divide the mother chamber into at least two sub-chambers 8, and a damping medium 9 and a piston 10 are respectively arranged in each sub-chamber 8;
the rear end of the piston rod 7 is inserted into each sub-chamber 8 and is fixedly connected with each piston 10, so that the movement of the piston rod 7 is blocked by each piston 10 and the damping medium 9.
The piston 10 is a component commonly used in a damper, and the piston 10 is provided with a damping hole for a damping medium to pass through.
In this embodiment, the piston rod 7 extends from the front end of the cylinder 1, and in order to prevent the damping medium 9 in the front terminal chamber 8 from leaking, as shown in fig. 3, a first sealing member 11 is disposed between the cylinder 1 and the piston rod 7, so that the piston rod 7 and the front end of the cylinder 1 form a sliding sealing fit.
In this embodiment, the rear end of the cylinder body 1 is provided with a rear pin head 3, the front end of the piston rod 7 is provided with a front pin head 4, the rear pin head 3 and the front pin head 4 are respectively provided with a mounting hole 5, and the mounting holes 5 are respectively provided with bearings, so as to facilitate the installation of the damper.
In this embodiment, the front end of the cylinder body 1 is provided with the protective cover 2, and the piston rod 7 penetrates out of the protective cover 2.
Preferably, in the present embodiment, four partition plates 6 are arranged in the female chamber of the cylinder 1 to divide the female chamber into five sub-chambers 8, as shown in fig. 2, and the piston 10 may be optionally not arranged in the front sub-chamber 8 according to the selection of the damping force required actually.
In this embodiment, in order to prevent the damping medium 9 from flowing between two adjacent sub-chambers 8, a second sealing member is disposed between the partition plate 6 and the piston rod 7, so that a sliding sealing fit is formed between the piston rod 7 and the partition plate 6. The second seal may be mounted by means conventional in the art or may be referred to the mounting of the first seal 11.
The working principle is as follows:
firstly, a certain amount of damping medium 9 is injected into the cylinder body 1 by using special injection equipment, so that the damping medium 9 enters each sub-chamber 8, after the injection is finished, the protective cover 2 and other parts are assembled, and then the front pin head 4 and the rear pin head 3 of the damper are respectively connected to a specified position through a bearing in the mounting hole 5.
When the subassembly that current round pin head 4 is connected receives thrust, make preceding round pin head 4 drive piston rod 7 move backward in cylinder 1, and piston rod 7 drives a plurality of pistons 10 of surface mounting and moves backward in corresponding subchamber 8, and piston 10 promotes corresponding damping medium 9 and overflows forward through the damping hole on piston 10 at corresponding subchamber 8 when moving backward in subchamber 8, and piston 10 is owing to receive the effect of damping medium 9 when moving in subchamber 8, and the impact force that makes piston 10 receive reduces, and because be provided with a plurality of subchambers 8 in the cylinder 1, when making each piston 10 move in each subchamber 8, receive the separation of a plurality of damping medium 9 and make the holistic damping force of increase piston rod 7.
The utility model discloses a damper, through set up a plurality of baffles 6 in cylinder body 1, make a plurality of baffles 6 and hydro-cylinder enclose to close and form a plurality of subchambers 8, and be provided with damping medium 9 and piston 10 in a plurality of subchambers 8 respectively, make piston rod 7 receive blockking of a plurality of pistons 10 and damping medium 9 at the in-process that removes, thereby holistic damping force has been improved, reached the damper on less space installation, and this damper inner chamber is less, can provide great damping force.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (7)
1. A multistage series viscous fluid damper is characterized by comprising a cylinder body and a piston rod;
at least one partition board is arranged in the master cavity of the cylinder body to divide the master cavity into at least two sub-cavities, and a damping medium and a piston are respectively arranged in each sub-cavity;
the rear end of the piston rod is inserted into each sub-cavity and is fixedly connected with each piston respectively, so that the movement of the piston rod is blocked by each piston and the damping medium.
2. The damper according to claim 1, wherein said piston rod extends from a front end of a cylinder, and a first seal is provided between said cylinder and said piston rod to prevent leakage of a damping medium in said front end chamber.
3. The damper according to claim 1, wherein a rear pin head is provided at a rear end of said cylinder body, and a front pin head is formed at a front end of said piston rod.
4. The damper according to claim 3, wherein a protective cap is provided at a front end of said cylinder, and said piston rod is protruded from said protective cap.
5. The damper according to claim 1, wherein four partitions are provided in said female chamber of said cylinder body to divide said female chamber into five sub-chambers.
6. The damper according to claim 5, wherein no piston is disposed in the foremost subchamber.
7. The damper according to claim 1, wherein a second seal is provided between said partition and said piston rod to prevent damping medium from flowing between adjacent subchambers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020268147.XU CN212377186U (en) | 2020-03-06 | 2020-03-06 | Multistage series viscous fluid damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020268147.XU CN212377186U (en) | 2020-03-06 | 2020-03-06 | Multistage series viscous fluid damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212377186U true CN212377186U (en) | 2021-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020268147.XU Active CN212377186U (en) | 2020-03-06 | 2020-03-06 | Multistage series viscous fluid damper |
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| CN (1) | CN212377186U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113669403A (en) * | 2021-08-06 | 2021-11-19 | 南京达钢新材料科技有限公司 | Low-yield-point steel viscous damper and damping wall thereof |
-
2020
- 2020-03-06 CN CN202020268147.XU patent/CN212377186U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113669403A (en) * | 2021-08-06 | 2021-11-19 | 南京达钢新材料科技有限公司 | Low-yield-point steel viscous damper and damping wall thereof |
| CN113669403B (en) * | 2021-08-06 | 2022-12-09 | 南京达钢新材料科技有限公司 | Low-yield-point steel viscous damper and damping wall thereof |
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