CN205446526U - Self -discharging formula protection type air spring - Google Patents
Self -discharging formula protection type air spring Download PDFInfo
- Publication number
- CN205446526U CN205446526U CN201620298417.5U CN201620298417U CN205446526U CN 205446526 U CN205446526 U CN 205446526U CN 201620298417 U CN201620298417 U CN 201620298417U CN 205446526 U CN205446526 U CN 205446526U
- Authority
- CN
- China
- Prior art keywords
- cylinder body
- steel ball
- piston
- hole
- air spring
- 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.)
- Withdrawn - After Issue
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- Fluid-Damping Devices (AREA)
- Actuator (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model belongs to the technical field of the air spring technique and specifically relates to a self -discharging formula protection type air spring is related to, including cylinder body and the piston of setting in the cylinder body, fixedly connected with piston rod on the piston, the piston divide into the cylinder body has pole chamber and no pole chamber, be located fixedly connected with bush between cylinder body and the piston rod in the cylinder body, set up flutedly on bush and the cylinder body contact surface, the recess communicates with there being the pole chamber, be equipped with the steel ball in the recess, the through -hole has been seted up on cylinder body and the bush contact surface, diameter of hole is less than the steel ball diameter, be the line contact between steel ball and the through -hole, be equipped with the spring between recess and the steel ball, through -hole and no pole chamber intercommunication, the utility model discloses good security, pressure release buffering and decelerating fast when the piston rod is rush out has guaranteed the leakproofness that the air spring is good, convenient operation.
Description
Technical field
This utility model relates to gas spring technology field, especially relates to a kind of self-tipping type protection type air spring.
Background technology
In use there is certain potential safety hazard in nitrogen spring now, 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 is the highest, occurring that piston rod goes out cylinder body, equipment or staff to neighbouring air spring cause personal damage.
Utility model content
The technical problems to be solved in the utility model 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.
nullThis utility model solves its technical problem and be the technical scheme is that a kind of self-tipping type protection type air spring，Including cylinder body and the piston that is arranged in cylinder body，It is fixedly connected with piston rod on described piston，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，Groove is offered on described lining and described cylinder body contact surface，Described groove connects with described rod chamber，It is provided with steel ball in described groove，Through hole is offered on described cylinder body and described bushing interface，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 matched 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 is for being inclined upwardly in the most extremely, the contact surface of described pretension sealing ring and fit sealing circle is for being inclined upwardly in the most extremely, cooperated by pretension sealing ring and fit sealing circle, it is ensured that air spring has good sealing.
The beneficial effects of the utility model are: this utility model self-tipping type protection type air spring 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 this utility model 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
With embodiment, this utility model is further illustrated below in conjunction with the accompanying drawings.
Fig. 1 is the front view of this utility model self-tipping type protection type air spring；
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 utility model is described in more detail.These accompanying drawings are the schematic diagram of simplification, and basic structure of the present utility model is described the most in a schematic way, and therefore it only shows the composition relevant with this utility model.
Embodiment 1
As illustrated in fig. 1 and 2, a kind of self-tipping type protection type air spring, including cylinder body 1 and the piston 2 that is arranged in cylinder body 1, it is fixedly connected with piston rod 3 on described piston 2, 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 offers groove 6 on described cylinder body 1 contact surface, described groove 6 connects with described rod chamber 4, it is provided with steel ball 7 in described groove 6, described cylinder body 1 offers through hole 8 on described lining 5 contact surface, 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 is to be inclined upwardly in the most extremely, and the contact surface of described pretension sealing ring 11 and fit sealing circle 12 is for being inclined upwardly in the most extremely.
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, and 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；nullWhen 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 rhombus，Contact surface between the bottom surface of pretension sealing ring 11 and seal groove 10 is for being inclined upwardly in the most extremely，The contact surface of pretension sealing ring 11 and fit sealing circle 12 is for being inclined upwardly in the most extremely，Piston rod 3 is close under the effect of fit sealing circle 12 by pretension sealing ring 11，Ensure that air spring has good sealing.
Above-mentioned is enlightenment according to desirable embodiment of the present utility model, and by above-mentioned description, relevant staff can carry out various change and amendment completely in the range of without departing from this utility model technological thought.The content that the technical scope of this utility model is not limited in description, it is necessary to determine its technical scope according to right.
Claims (2)
- null1. a self-tipping type protection type air spring，Including cylinder body (1) and the piston (2) that is arranged in cylinder body (1)，Piston rod (3) it is fixedly connected with on described piston (2)，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 in described cylinder body (1) between described cylinder body (1) and described piston rod (3) and be fixedly connected with lining (5)，Groove (6) is offered on described lining (5) and described cylinder body (1) contact surface，Described groove (6) connects with described rod chamber (4)，Steel ball (7) it is provided with in described groove (6)，Through hole (8) is offered on described cylinder body (1) and described lining (5) contact surface，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).
- Self-tipping type protection type air spring the most 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) matched 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) is for being inclined upwardly in the most extremely, the contact surface of described pretension sealing ring (11) and fit sealing circle (12) is for being inclined upwardly in the most extremely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620298417.5U CN205446526U (en) | 2016-04-11 | 2016-04-11 | Self -discharging formula protection type air spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620298417.5U CN205446526U (en) | 2016-04-11 | 2016-04-11 | Self -discharging formula protection type air spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205446526U true CN205446526U (en) | 2016-08-10 |
Family
ID=56607184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620298417.5U Withdrawn - After Issue CN205446526U (en) | 2016-04-11 | 2016-04-11 | Self -discharging formula protection type air spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205446526U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105650189A (en) * | 2016-04-11 | 2016-06-08 | 常州气弹簧有限公司 | Self-detached protection type gas spring |
-
2016
- 2016-04-11 CN CN201620298417.5U patent/CN205446526U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105650189A (en) * | 2016-04-11 | 2016-06-08 | 常州气弹簧有限公司 | Self-detached protection type gas spring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160810 Effective date of abandoning: 20170808 |