CN101881315A - Damper with increasing damping ratio - Google Patents
Damper with increasing damping ratio Download PDFInfo
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- CN101881315A CN101881315A CN 201010208086 CN201010208086A CN101881315A CN 101881315 A CN101881315 A CN 101881315A CN 201010208086 CN201010208086 CN 201010208086 CN 201010208086 A CN201010208086 A CN 201010208086A CN 101881315 A CN101881315 A CN 101881315A
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- Prior art keywords
- damper
- piston
- damping
- piston rod
- damping ratio
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Abstract
The invention discloses a damper with increasing damping ratio. The damper comprises an outer shell, a piston, a piston rod and a sealing end cover, wherein the piston is arranged in an internal cavity of the outer shell; the piston rod is connected with the piston and led out from an open end of the outer shell; the open end is provided with the sealing end cover; the inner wall of the outer shell is provided with an axial damping flow passage; and the cross sectional area of the damping flow passage gradually decreases along the length direction. In the technical scheme, the cross sectional area of the damping flow passage gradually decreases along the length direction, so that the damper can produce damping; and when the piston slides from one end of the damping flow passage with larger cross section to the end with smaller cross section, the damping ratio increases gradually.
Description
Technical field:
The present invention relates to the damper that a kind of damping ratio increases progressively gradually.
Background technique:
Damper is to promote piston by external force to move, make the liquid of chamber interior flow to the chamber of opposite side from the chamber of piston one side through damping flow channel, pass through control flow rate simultaneously, thereby produce resistance, reach the influence of suppression equipment cyclic load and impulsive load.
The size of weighing the damper damping is a damping ratio, the damping flow channel section area is more little, damping ratio is big more, existing part door hinge is that processing is on piston with the damping flow channel of damper, but this damping flow channel section area is constant, that is to say that its damping ratio is constant, when producing damping, the active force of bestowing piston rod is big more, the hydraulic fluid flow rate of damping flow channel of flowing through is big more, the acceleration of piston motion is just big more, in the stroke of setting, when reaching certain value as if active force, because piston motion is too fast, the underdamping that produces causes the generation of clashing into, and makes damper lose pooling feature.
Summary of the invention:
The objective of the invention is in order to overcome the shortcoming of above-mentioned prior art, the damper that provides a kind of damping ratio to increase progressively gradually.
For achieving the above object, technological scheme provided by the invention is: the damper that a kind of damping ratio increases progressively gradually, include cylinder body, piston, piston rod and end cover, piston places in the internal chamber of cylinder body, piston rod is connected with piston, and draws from the opening end of cylinder body, at this opening end end cover is set, be processed with axial damping flow channel on the inwall of cylinder body, the cross-section area of described damping flow channel reduces along its length gradually.
Be provided with sliding ring at the cylinder interior chamber towards a side of opening end, be provided with elastic element between this sliding ring and the end cover.
After adopting technique scheme, damping flow channel is designed to cross-section area reduces gradually along its length, can make damper produce damping, when piston slided to the less end of cross-section area from the bigger end of damping flow channel cross-section area, damping ratio increased gradually.
Description of drawings:
Fig. 1 is the structural representation that the forced damper rod of the present invention is pulled out state;
Fig. 2 is that the forced damper rod of the present invention is pressed into the structural representation that produces damping;
Fig. 3 is vertical sectional structure chart of the forced damper cylinder body of the present invention;
Fig. 4 is the horizontal sectional structure chart of the forced damper cylinder body of the present invention;
Fig. 5 is the structural representation that drawer type damper rod of the present invention is pressed into state;
Fig. 6 is that drawer type damper rod of the present invention is pulled out the structural representation that produces damping.
Embodiment:
Now elaborate the present invention in conjunction with the accompanying drawings:
The damper of present embodiment is forced door hinge damper, its structure as depicted in figs. 1 and 2, it includes cylinder body 1, piston 2, piston rod 3 and end cover 4, piston 2 places in the internal chamber 11 of cylinder body 1, piston rod 3 is connected with piston 2, and draw from the opening end of cylinder body 1, at this opening end end cover 4 is set, on the inwall of cylinder body 1, be processed with axial damping flow channel 5, as shown in Figure 3 and Figure 4, the cross-section area of described damping flow channel 5 is pressed into direction along piston rod 3 to be reduced gradually, thereby the damping ratio of realizing damper improves gradually, as long as the less end 51 of damping flow channel cross-section area is enough little, in the tolerance range of damper, be hit and rotate the door leaf close when damper internal piston 2 moves to the less side 51 of damping flow channel cross-section area, its impact energy all can be absorbed fully, avoid clashing into, be provided with sliding ring 6 at cylinder interior chamber 11 towards a side of opening end, be provided with Returnning spring 7 between this sliding ring 6 and the end cover 4, when piston rod 3 is compressed into cylinder interior chamber 11, owing to forcing hydraulic oil to promote sliding ring 6, compressing into of piston rod 3 slide towards inner chamber opening extreme direction, and compression reseting spring 7, when piston rod 3 is pulled out internal chamber 11, Returnning spring 7 promotes sliding ring 6 and resets, thereby prevent that vacuum from appearring in inwall chamber 11, jumping phenomena occurs when avoiding damper work, influence the stationarity of piston rod 3 motions.
This damper also can be designed to the drawer type damper in addition, produce damping when promptly pulling out, its structure as shown in Figure 5 and Figure 6, with the difference of above-mentioned forced damper be: the cross-section area of damping flow channel 5 is pressed into direction along piston rod 3 and increases gradually, and all the other structures are the same.
The above only is preferred embodiment of the present invention, is not the present invention is done any pro forma restriction.Any those of ordinary skill in the art, do not breaking away under the technical solution of the present invention scope situation, all can utilize the method and the technology contents of above-mentioned announcement that technical solution of the present invention is made many possible changes and modification, or be revised as the equivalent embodiment of equivalent variations.So every content that does not break away from technical solution of the present invention, the equivalence of doing according to the present invention's shape, structure and principle changes, and all should be covered by in protection scope of the present invention.
Claims (2)
1. damper that damping ratio increases progressively gradually, include shell, piston, piston rod and end cover, piston places in the internal chamber of shell, piston rod is connected with piston, and draw from the opening end of shell, at this opening end end cover is set, is processed with axial damping flow channel on the inwall of shell, it is characterized in that: the cross-section area of described damping flow channel reduces along its length gradually.
2. the damper that a kind of damping ratio according to claim 1 increases progressively gradually is characterized in that: portion's chamber is provided with sliding ring towards a side of opening end in the enclosure, is provided with elastic element between this sliding ring and the end cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010208086 CN101881315A (en) | 2010-06-24 | 2010-06-24 | Damper with increasing damping ratio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010208086 CN101881315A (en) | 2010-06-24 | 2010-06-24 | Damper with increasing damping ratio |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101881315A true CN101881315A (en) | 2010-11-10 |
Family
ID=43053408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010208086 Pending CN101881315A (en) | 2010-06-24 | 2010-06-24 | Damper with increasing damping ratio |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101881315A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103225661A (en) * | 2012-01-31 | 2013-07-31 | 株式会社昭和 | Gas spring and damping force generating mechanism |
| CN107630964A (en) * | 2017-09-20 | 2018-01-26 | 周根元 | A kind of hydraulic damper |
| CN108662063A (en) * | 2018-06-11 | 2018-10-16 | 何亮 | A kind of damper |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2336134Y (en) * | 1998-03-04 | 1999-09-01 | 徐铭 | Hydraulic buffer |
| CN201461829U (en) * | 2009-06-30 | 2010-05-12 | 邵阳市通达汽车零部件制造有限公司 | Variable-damping gas spring |
| CN201507596U (en) * | 2009-07-06 | 2010-06-16 | 唐善培 | Improved structure of damper for furniture with reset function |
| CN201747847U (en) * | 2010-06-24 | 2011-02-16 | 唐善培 | Damper with gradually increasing damping rate |
-
2010
- 2010-06-24 CN CN 201010208086 patent/CN101881315A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2336134Y (en) * | 1998-03-04 | 1999-09-01 | 徐铭 | Hydraulic buffer |
| CN201461829U (en) * | 2009-06-30 | 2010-05-12 | 邵阳市通达汽车零部件制造有限公司 | Variable-damping gas spring |
| CN201507596U (en) * | 2009-07-06 | 2010-06-16 | 唐善培 | Improved structure of damper for furniture with reset function |
| CN201747847U (en) * | 2010-06-24 | 2011-02-16 | 唐善培 | Damper with gradually increasing damping rate |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103225661A (en) * | 2012-01-31 | 2013-07-31 | 株式会社昭和 | Gas spring and damping force generating mechanism |
| CN107630964A (en) * | 2017-09-20 | 2018-01-26 | 周根元 | A kind of hydraulic damper |
| CN107630964B (en) * | 2017-09-20 | 2023-08-11 | 肇庆市维德亚科技有限公司 | Hydraulic damper |
| CN108662063A (en) * | 2018-06-11 | 2018-10-16 | 何亮 | A kind of damper |
| CN108662063B (en) * | 2018-06-11 | 2024-04-19 | 湖北宏盛昌电子有限责任公司 | Damper |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20101110 |