CN105650189A - Self-detached protection type gas spring - Google Patents
Self-detached protection type gas spring Download PDFInfo
- Publication number
- CN105650189A CN105650189A CN201610222424.1A CN201610222424A CN105650189A CN 105650189 A CN105650189 A CN 105650189A CN 201610222424 A CN201610222424 A CN 201610222424A CN 105650189 A CN105650189 A CN 105650189A
- Authority
- CN
- China
- Prior art keywords
- cylinder body
- piston
- steel ball
- hole
- groove
- 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.)
- Granted
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/36—Special sealings, including sealings or guides for piston-rods
- F16F9/362—Combination of sealing and guide arrangements for piston rods
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/34—Special valve constructions; Shape or construction of throttling passages
Abstract
The invention relates to the technical field of gas springs and particularly relates to a self-detached protection type gas spring. The self-detached protection type gas spring comprises a cylinder body and a piston, wherein the piston is arranged in the cylinder body; a piston rod is fixedly connected to the piston; the cylinder body is divided with a rod cavity and a rodless cavity by the piston; a bush is fixedly connected between the cylinder body and the piston rod in the cylinder body; a groove is formed in the contact surface between the bush and the cylinder body and is communicated with the rod cavity, and a steel ball is arranged in the groove; a through hole is formed in the contact surface between the cylinder body and the bush, the diameter of the through hole is smaller than that of the steel ball, and the steel ball is in line contact with the through hole; and a spring is arranged between the groove and the steel ball, and the through hole is communicated with the rodless cavity. The self-detached protection type gas spring has good safety and is capable of rapidly realizing decompression, buffering and deceleration when the piston rod rushes out, so that the good tightness of the gas spring is guaranteed; and the operation is convenient.
Description
Technical field
The present invention relates to gas spring technology field, especially relate to a kind of self-tipping type protection type air spring.
Background technology
In use there is certain potential safety hazard in present nitrogen spring, because being filled with high pressure nitrogen in nitrogen spring cylinder body, owing to rubbing for a long time between piston rod and sealing ring, cause occurring between sealing ring and piston gap, the high pressure nitrogen in air spring rod chamber is made to run off, owing to the upper throttle orifice of piston is smaller, rodless cavity loss of pressure is slower, pressure in rodless cavity or significantly high, occurring that piston rod goes out cylinder body, equipment or staff to neighbouring air spring cause personal damage.
Summary of the invention
The technical problem to be solved in the present invention is: in order to solve owing to rubbing for a long time between piston rod and sealing ring, the problem causing occurring gap between sealing ring and piston, now provides a kind of self-tipping type protection type air spring.
The technical solution adopted for the present invention to solve the technical problems is: a kind of self-tipping type protection type air spring, including cylinder body and be arranged on the piston in cylinder body, described piston is fixedly connected with piston rod, cylinder body is divided into rod chamber and rodless cavity by described piston, between described cylinder body and described piston rod, it is fixedly connected with lining in described cylinder body, described lining and described cylinder body contact surface offer groove, described groove connects with described rod chamber, it is provided with steel ball in described groove, described cylinder body and described bushing interface offer through hole, described through-hole diameter is less than diameter of the steel ball, it it is linear contact lay between described steel ball and described through hole, it is provided with spring between described groove and described steel ball, described through hole connects with described rodless cavity, by steel ball, through hole is sealed, time properly functioning, steel ball is in sealing state, when rod chamber high-pressure gas flow is missed the season, now steel ball is backed down, the gases at high pressure of rodless cavity are offloaded to rod chamber, reduce speed when piston rod is gone out.
In order to make air spring have good sealing, further, the inner ring of described cylinder body offers seal groove, the pretension sealing ring and fit sealing circle that match with it it is provided with in described seal groove, it is provided with spring between described fit sealing circle and described seal groove, contact surface between described pretension sealing ring and the bottom surface of seal groove for by outer in be inclined upwardly, the contact surface of described pretension sealing ring and fit sealing circle for by outer in be inclined upwardly, cooperated by pretension sealing ring and fit sealing circle, it is ensured that air spring has good sealing.
The invention has the beneficial effects as follows: self-tipping type protection type air spring of the present invention is in use, by steel ball, through hole is sealed, time properly functioning, steel ball is in sealing state, when rod chamber high-pressure gas flow is missed the season, now steel ball is backed down, the gases at high pressure of rodless cavity are offloaded to rod chamber, reduce speed when piston rod is gone out; Cooperated by pretension sealing ring and fit sealing circle, it is ensured that air spring has good sealing; The safety that the present invention is good, can quick pressure releasing buffer deceleration when piston rod is gone out, it is ensured that the sealing that air spring is good, easy to operate.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the front view of self-tipping type protection type air spring of the present invention;
Fig. 2 is the partial enlarged drawing of A in Fig. 1.
In figure: 1, cylinder body, 2, piston, 3, piston rod, 4, rod chamber, 4-1, rodless cavity, 5, lining, 6, groove, 7, steel ball, 8, through hole, 9, spring, 10, seal groove, 11, pretension sealing ring, 12, fit sealing circle.
Detailed description of the invention
Presently in connection with accompanying drawing, the present invention will be further described in detail. These accompanying drawings are the schematic diagram of simplification, and the basic structure of the present invention is only described in a schematic way, and therefore it only shows the composition relevant with the present invention.
Embodiment 1
As illustrated in fig. 1 and 2, a kind of self-tipping type protection type air spring, including cylinder body 1 and be arranged on the piston 2 in cylinder body 1, described piston 2 is fixedly connected with piston rod 3, cylinder body 1 is divided into rod chamber 4 and rodless cavity 4-1 by described piston 2, between described cylinder body 1 and described piston rod 3, it is fixedly connected with lining 5 in described cylinder body 1, described lining 5 and described cylinder body 1 contact surface offer groove 6, described groove 6 connects with described rod chamber 4, it is provided with steel ball 7 in described groove 6, described cylinder body 1 and described lining 5 contact surface offer through hole 8, described through hole 8 diameter is less than steel ball 7 diameter, it is linear contact lay between described steel ball 7 and described through hole 8, it is provided with spring 9 between described groove 6 and described steel ball 7, described through hole 8 connects with described rodless cavity 4-1.
The inner ring of described cylinder body 1 offers seal groove 10, the pretension sealing ring 11 matched with it and fit sealing circle 12 it is provided with in described seal groove 10, it is provided with spring 9 between described fit sealing circle 12 and described seal groove 10, contact surface between described pretension sealing ring 11 and the bottom surface of seal groove 10 for by outer in be inclined upwardly, the contact surface of described pretension sealing ring 11 and fit sealing circle 12 for by outer in be inclined upwardly.
Above-mentioned self-tipping type protection type air spring is operationally, owing to rod chamber 4 and rodless cavity 4-1 pressure are equal, steel ball 7 diameter is more than through hole 8 diameter, steel ball 7 is positioned at the active force of rod chamber 4 one end and is greater than steel ball 7 and is positioned at rodless cavity 4-1 and connects the active force of one end, and steel ball 7 is withstood to be sealed up through hole 8, when the high-pressure gas flow in rod chamber 4 is missed the season, the sub-fraction gases at high pressure being positioned at rodless cavity 4-1 flow into rod chamber 4 by throttle orifice, another part gases at high pressure flow into rod chamber 4 by through hole 8, piston 2 will go out cylinder body 1, now steel ball 7 is positioned at the external active force just disappearance of groove 6 one end, and steel ball 7 is just ejected by the active force of one end that steel ball 7 is positioned at through hole 8 more than spring force, by in the high pressure gas discharge in rodless cavity 4-1 to rod chamber 4, reduction effect active force on the piston 2, reduce speed when piston rod 3 is gone out, when gap occurring between pretension sealing ring 11 and piston rod 3, owing to being provided with spring 9 between fit sealing circle 12 and seal groove 10, under spring force, withstand fit sealing circle 12, and the cross sectional shape of pretension sealing ring 11 is Pedicellus et Pericarpium Trapae shape, contact surface between the bottom surface of pretension sealing ring 11 and seal groove 10 for by outer in be inclined upwardly, the contact surface of pretension sealing ring 11 and fit sealing circle 12 for by outer in be inclined upwardly, piston rod 3 is close to by pretension sealing ring 11 under the effect of fit sealing circle 12, ensure that air spring has good sealing.
The above-mentioned desirable embodiment according to the present invention is enlightenment, and by above-mentioned description, relevant staff in the scope not necessarily departing from this invention technological thought, can carry out various change and amendment completely. The technical scope of this invention is not limited to the content in description, it is necessary to determine its technical scope according to right.
Claims (2)
1. a self-tipping type protection type air spring, including cylinder body (1) and be arranged on the piston (2) in cylinder body (1), described piston (2) is fixedly connected with piston rod (3), cylinder body (1) is divided into rod chamber (4) and rodless cavity (4-1) by described piston (2), it is characterized in that: be positioned between described cylinder body (1) and described piston rod (3) in described cylinder body (1) and be fixedly connected with lining (5), described lining (5) and described cylinder body (1) contact surface offer groove (6), described groove (6) connects with described rod chamber (4), steel ball (7) it is provided with in described groove (6), described cylinder body (1) and described lining (5) contact surface offer through hole (8), described through hole (8) diameter is less than steel ball (7) diameter, it is linear contact lay between described steel ball (7) and described through hole (8), spring (9) it is provided with between described groove (6) and described steel ball (7), described through hole (8) connects with described rodless cavity (4-1).
2. self-tipping type protection type air spring according to claim 1, it is characterized in that: the inner ring of described cylinder body (1) offers seal groove (10), the pretension sealing ring (11) and fit sealing circle (12) that match with it it is provided with in described seal groove (10), spring (9) it is provided with between described fit sealing circle (12) and described seal groove (10), contact surface between described pretension sealing ring (11) and the bottom surface of seal groove (10) for by outer in be inclined upwardly, the contact surface of described pretension sealing ring (11) and fit sealing circle (12) for by outer in be inclined upwardly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610222424.1A CN105650189B (en) | 2016-04-11 | 2016-04-11 | Self-tipping type protection type gas spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610222424.1A CN105650189B (en) | 2016-04-11 | 2016-04-11 | Self-tipping type protection type gas spring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105650189A true CN105650189A (en) | 2016-06-08 |
| CN105650189B CN105650189B (en) | 2017-08-08 |
Family
ID=56496356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610222424.1A Active CN105650189B (en) | 2016-04-11 | 2016-04-11 | Self-tipping type protection type gas spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105650189B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB924478A (en) * | 1960-11-24 | 1963-04-24 | Woodhead Monroe Ltd | Improvements in or relating to shock absorbers |
| CN2333839Y (en) * | 1998-06-29 | 1999-08-18 | 陈贤武 | Bidirectional acting air cylinder shock-absorber |
| JP4815418B2 (en) * | 2007-10-19 | 2011-11-16 | カヤバ工業株式会社 | Pneumatic shock absorber |
| CN204458960U (en) * | 2015-02-15 | 2015-07-08 | 黄庆盛 | A kind of high temperature hydraulic damper |
| CN105465264A (en) * | 2015-12-14 | 2016-04-06 | 陈鸽 | Vibration damping device and switch equipment |
| CN205446526U (en) * | 2016-04-11 | 2016-08-10 | 常州气弹簧有限公司 | Self -discharging formula protection type air spring |
-
2016
- 2016-04-11 CN CN201610222424.1A patent/CN105650189B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB924478A (en) * | 1960-11-24 | 1963-04-24 | Woodhead Monroe Ltd | Improvements in or relating to shock absorbers |
| CN2333839Y (en) * | 1998-06-29 | 1999-08-18 | 陈贤武 | Bidirectional acting air cylinder shock-absorber |
| JP4815418B2 (en) * | 2007-10-19 | 2011-11-16 | カヤバ工業株式会社 | Pneumatic shock absorber |
| CN204458960U (en) * | 2015-02-15 | 2015-07-08 | 黄庆盛 | A kind of high temperature hydraulic damper |
| CN105465264A (en) * | 2015-12-14 | 2016-04-06 | 陈鸽 | Vibration damping device and switch equipment |
| CN205446526U (en) * | 2016-04-11 | 2016-08-10 | 常州气弹簧有限公司 | Self -discharging formula protection type air spring |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105650189B (en) | 2017-08-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Self-detached protection type gas spring Effective date of registration: 20190902 Granted publication date: 20170808 Pledgee: Bank of China Limited by Share Ltd Changzhou Wujin branch Pledgor: Changzhou gas spring Co., Ltd. Registration number: Y2019320000099 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20200903 Granted publication date: 20170808 Pledgee: Bank of China Limited by Share Ltd. Changzhou Wujin branch Pledgor: CHANGZHOU GAS SPRING Co.,Ltd. Registration number: Y2019320000099 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Self unloading protective gas spring Effective date of registration: 20200908 Granted publication date: 20170808 Pledgee: Bank of China Limited by Share Ltd. Changzhou Wujin branch Pledgor: CHANGZHOU GAS SPRING Co.,Ltd. Registration number: Y2020980005808 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |