CN204153041U - One crosses stroke protection type nitrogen spring - Google Patents
One crosses stroke protection type nitrogen spring Download PDFInfo
- Publication number
- CN204153041U CN204153041U CN201420607631.5U CN201420607631U CN204153041U CN 204153041 U CN204153041 U CN 204153041U CN 201420607631 U CN201420607631 U CN 201420607631U CN 204153041 U CN204153041 U CN 204153041U
- Authority
- CN
- China
- Prior art keywords
- nitrogen spring
- piston rod
- protection type
- sleeve
- cylinder barrel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 21
- 239000000428 dust Substances 0.000 claims description 4
- 238000012856 packing Methods 0.000 claims description 4
- 238000004080 punching Methods 0.000 claims description 3
- 238000004880 explosion Methods 0.000 abstract 1
- 238000010009 beating Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Fluid-Damping Devices (AREA)
Abstract
The utility model discloses one and cross stroke protection type nitrogen spring; comprise piston rod; sleeve; block; cylinder barrel, described cylinder barrel is fixedly connected with sleeve, and described block is symmetrically set in underpart of the piston rod both sides; this piston rod by block and sleeve connection, the exhaust passage being provided with a drift bottom described cylinder barrel and tackling mutually with described drift.The utility model provides one and crosses stroke protection type nitrogen spring, and when achieving stroke, initiatively pressure release, unexpected explosion after preventing stroke rear-bank rotor housing to be extruded distortion, improves Security.
Description
Technical field
The utility model relates to one and crosses stroke protection type nitrogen spring.
Background technique
Before nitrogen spring invention, the spring that automobile die is applied is all rectangular wire spring.But rectangular wire spring volume is large, and pressure is little, and the life-span is short, generally only has the working life that hundreds of thousands is secondary.And rectangular wire spring characteristic curve is linear, along with the increase of stroke, pressure is raising always, this characteristic panel beating drawing and shaping time be very disadvantageous.Pressure hour can go out fold, and pressure is large can be torn.In panel beating drawing, time shaping, wish that the pressure of pressed edge ring preferably can immobilize or change not quite, the flowing that namely could contribute to metal does not like this go out fold, is unlikely to again excessive the causing of pressure and tears.What nitrogen spring sealed due to the inside is high pressure nitrogen, and in compression process, gas pressure change is not obvious, is particularly suitable for applying in automobile die.And volume is little, pressure is large, and the life-span is long, can reach more than 1,000,000 times.If but when exceeding design runlength when client installs and use, cylinder barrel can be extruded distortion, due to inner sealing high pressure nitrogen, so may burst suddenly, causes danger.
model utility content
The purpose of this utility model is to provide one and crosses stroke protection type nitrogen spring, and when exceeding design runlength, meeting initiatively pressure release, cylinder barrel only can be extruded distortion afterwards, can not burst.
In order to achieve the above object, the utility model has following technological scheme:
One crosses stroke protection type nitrogen spring; comprise piston rod; sleeve; block; cylinder barrel, described cylinder barrel is fixedly connected with sleeve, and described block is symmetrically set in underpart of the piston rod both sides; this piston rod by block and sleeve connection, the exhaust passage being provided with a drift bottom described cylinder barrel and tackling mutually with described drift.
Wherein, described exhaust passage is L-type.
Wherein, there is gap between the longitudinal component of after described drift is forced to press down punching and described exhaust passage.
Wherein, the outer side surface of described block is respectively equipped with guidance tape.
Wherein, jump ring is provided with between the corresponding surface of described upper cartridge and described cylinder barrel.
Wherein, lip-type packing is provided with between described piston rod and sleeve.
Wherein, the position that described sleeve top is connected with piston rod is provided with dust ring.
Owing to taking above technological scheme, the utility model has the advantage of:
The utility model exceedes design runlength in use, and meeting initiatively pressure release, cylinder barrel only can be extruded distortion afterwards, can not burst.
Accompanying drawing explanation
Fig. 1 is the utility model structural drawing;
Fig. 2 is that the utility model crosses stroke protection mechanism close-up schematic view;
Fig. 3 is utility model works schematic diagram;
Fig. 4 is punch structure figure.
In Fig. 1: 1. piston rod, 2. dust ring, 3. jump ring, 4. sleeve, 5.O RunddichtringO, 6. lip-type packing, 7. guidance tape, 8. block, 9. cylinder barrel, 10. drift, 11. exhaust passages
Embodiment
Below implement for illustration of the utility model, but be not used for limiting scope of the present utility model.
As Fig. 1, shown in 2, one crosses stroke protection type nitrogen spring, comprise piston rod 1, sleeve 4, block 8, cylinder barrel 9, described cylinder barrel 9 is fixedly connected with sleeve 4, jump ring 3 is provided with between described sleeve 4 top and the corresponding position of described cylinder barrel 9, described block 8 is symmetrically set in both sides, piston rod 1 bottom, this piston rod 1 is connected with sleeve 4 by block 8, lip-type packing 6 is also provided with between piston rod 1 and sleeve 4, the position that described sleeve 4 top is connected with piston rod 1 is provided with dust ring 2, the outer side surface of described block 8 is respectively equipped with guidance tape 7, described piston rod 1 can pump with block 8 in sleeve 4, sleeve 4 and guidance tape 7 play the guiding role, the exhaust passage 11 being provided with a drift 10 bottom described cylinder barrel 9 and tackling with described drift 10 phase, exhaust passage is L-type, gap is there is after described drift 10 is forced to press down punching and between the longitudinal component of described exhaust passage 11.
As Fig. 3,4; when piston rod 1 moves downward; when exceeding design runlength, contacting with drift 10 bottom described piston rod 1, driving drift 10 to move downward; a hole is rushed bottom cylinder barrel 9; sealing nitrogen can arrive exhaust passage 11 again through the deflation area of drift 10, and leak in air, cylinder barrel 9 may be extruded distortion afterwards; but can not burst suddenly, realize stroke protection.
The nitrogen spring of stroke protection type excessively of the present utility model, when exceeding design runlength, meeting initiatively pressure release, cylinder barrel only can be extruded distortion afterwards, can not burst.
Obviously, above-described embodiment of the present utility model is only for the utility model example is clearly described, and is not the restriction to mode of execution of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here cannot give exhaustive to all mode of executions.Every belong to the technical solution of the utility model the apparent change of extending out or variation be still in the row of protection domain of the present utility model.
Claims (7)
1. cross stroke protection type nitrogen spring for one kind; it is characterized in that: comprise piston rod; sleeve; block; cylinder barrel, described cylinder barrel is fixedly connected with sleeve, and described block is symmetrically set in underpart of the piston rod both sides; this piston rod by block and sleeve connection, the exhaust passage being provided with a drift bottom described cylinder barrel and tackling mutually with described drift.
2. one as claimed in claim 1 crosses stroke protection type nitrogen spring, it is characterized in that: described exhaust passage is L-type.
3. one as claimed in claim 1 or 2 crosses stroke protection type nitrogen spring, it is characterized in that: there is gap between the longitudinal component of after described drift is forced to press down punching and described exhaust passage.
4. one as claimed in claim 1 crosses stroke protection type nitrogen spring, it is characterized in that: the outer side surface of described block is respectively equipped with guidance tape.
5. one as claimed in claim 1 crosses stroke protection type nitrogen spring, it is characterized in that: be provided with jump ring between the corresponding surface of described upper cartridge and described cylinder barrel.
6. one as claimed in claim 1 crosses stroke protection type nitrogen spring, it is characterized in that: be provided with lip-type packing between described piston rod and sleeve.
7. one as claimed in claim 1 crosses stroke protection type nitrogen spring, it is characterized in that: the position that described sleeve top is connected with piston rod is provided with dust ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420607631.5U CN204153041U (en) | 2014-10-19 | 2014-10-19 | One crosses stroke protection type nitrogen spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420607631.5U CN204153041U (en) | 2014-10-19 | 2014-10-19 | One crosses stroke protection type nitrogen spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204153041U true CN204153041U (en) | 2015-02-11 |
Family
ID=52511159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420607631.5U Expired - Fee Related CN204153041U (en) | 2014-10-19 | 2014-10-19 | One crosses stroke protection type nitrogen spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204153041U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107504119A (en) * | 2017-08-01 | 2017-12-22 | 江苏耐玛鑫精密机械有限公司 | A kind of overtravel uses self-relieving nitrogen spring |
| CN107542721A (en) * | 2016-06-24 | 2018-01-05 | 异型弹簧有限公司 | Have fool proof gas cylinder actuators |
| CN107787417A (en) * | 2015-06-26 | 2018-03-09 | 斯特罗姆斯霍尔曼股份公司 | The method of compressible flow body device and protection compressible flow body device including safety device |
| CN108953451A (en) * | 2018-06-07 | 2018-12-07 | 中国北方车辆研究所 | A kind of air spring for electromechanical draft hitch |
| WO2020191351A1 (en) * | 2019-03-20 | 2020-09-24 | Dadco, Inc. | Gas spring with overtravel pressure relief |
-
2014
- 2014-10-19 CN CN201420607631.5U patent/CN204153041U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107787417A (en) * | 2015-06-26 | 2018-03-09 | 斯特罗姆斯霍尔曼股份公司 | The method of compressible flow body device and protection compressible flow body device including safety device |
| CN107542721A (en) * | 2016-06-24 | 2018-01-05 | 异型弹簧有限公司 | Have fool proof gas cylinder actuators |
| US10619695B2 (en) | 2016-06-24 | 2020-04-14 | Special Springs S.R.L. | Gas cylinder actuator with safety device |
| CN107542721B (en) * | 2016-06-24 | 2020-10-23 | 异型弹簧有限公司 | Cylinder actuator with safety device |
| CN107504119A (en) * | 2017-08-01 | 2017-12-22 | 江苏耐玛鑫精密机械有限公司 | A kind of overtravel uses self-relieving nitrogen spring |
| CN108953451A (en) * | 2018-06-07 | 2018-12-07 | 中国北方车辆研究所 | A kind of air spring for electromechanical draft hitch |
| CN108953451B (en) * | 2018-06-07 | 2022-08-09 | 中国北方车辆研究所 | Air spring for electromechanical suspension device |
| WO2020191351A1 (en) * | 2019-03-20 | 2020-09-24 | Dadco, Inc. | Gas spring with overtravel pressure relief |
| US11460087B2 (en) | 2019-03-20 | 2022-10-04 | Dadco, Inc. | Gas spring with overtravel pressure relief |
| TWI836036B (en) * | 2019-03-20 | 2024-03-21 | 美商黛寇公司 | Gas spring with overtravel pressure relief |
| US11959530B2 (en) | 2019-03-20 | 2024-04-16 | Dadco, Inc. | Gas spring with overtravel pressure relief |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 102629 1409, floor 14, building 3, courtyard 5, Tianhua street, Daxing District, Beijing Patentee after: Beijing Hongshu Metallurgical Machinery Technology Center Address before: 102611 500m west of Houyuan village committee, Weishanzhuang Town, Daxing District, Beijing Patentee before: BEIJING HONGSHU METAL MACHINERY FACTORY |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150211 |