CN201606440U - Gas spring capable of rigidly locking - Google Patents
Gas spring capable of rigidly locking Download PDFInfo
- Publication number
- CN201606440U CN201606440U CN2009202572692U CN200920257269U CN201606440U CN 201606440 U CN201606440 U CN 201606440U CN 2009202572692 U CN2009202572692 U CN 2009202572692U CN 200920257269 U CN200920257269 U CN 200920257269U CN 201606440 U CN201606440 U CN 201606440U
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- piston
- cylinder barrel
- piston rod
- spool
- air spring
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Abstract
The utility model relates to a gas spring capable of rigidly locking, which comprises a cylinder barrel, oil liquid, nitrogen gas, a floating isolated piston, a piston, a piston rod and a valve core mandril, wherein the oil liquid is arranged in the cylinder barrel, the piston is provided with a valve core and a damping hole, the piston rod is connected at the rear end of the piston and is provided with a through hole in the axle center; and the valve core mandril is inserted into the through hole of the piston rod and is connected with the valve core. The gas spring is characterized in that the floating isolated piston is arranged at the front end of the piston in the cylinder barrel; a guide support of the piston rod is arranged at the head end in the cylinder barrel; oil liquid is filled from the floating isolated piston to the tail end of the cylinder barrel to form a hydraulic chamber; and nitrogen gas is filled from the floating isolated piston to the head end of the cylinder barrel to form a gas pressure chamber. The utility model has the advantages that the gas spring has the capability of rigidly locking in the compression direction, accurate locking position, less possibility of change, convenient operation and strong practicability.
Description
Technical field
The utility model relates to and is used for shock absorbing or is used to change elastic element with locked position, but relates in particular to a kind of air spring of rigid locking.
Background technique
A lot of products all need by the height or the angle of regulating it and are locked in desired location, improve its function of use and satisfy comfort with this, for example, the multifunctional operating table of medical industry, medical bed, rehabilitation by regulating the height or the angle of some parts, just can be fit to the use of different personnel's Energy and comforts ground with MPV (Multi-Purpose Vehicle) etc.For another example, various seats can satisfy the requirement of comfort by the angle of regulating backrest.In addition, for the handlebar of electric bicycle, carry for conveniently going out or the use of suitable different crowd, handlebar need be made adjustable structure.On a lot of products, adopted air spring for the adjusting of this class.
Air spring is a kind ofly can play support, buffering, braking, highly regulate and the novel elastic element of function such as angle adjustment.It is to charge into nitrogen or oil or the gas mixture with certain pressure in airtight cylinder body, utilizes the pressure that acts on piston rod or the piston cross-section to make air spring produce thrust or pulling force.
But existing most of air spring does not have the characteristics of rigid locking on compression direction, and the corresponding parts of locking that need can not accurately be locked on the desired position.It is a kind of not with the air spring of an inflated with nitrogen in unsteady separator piston, the steel cylinder that shown in Figure 1 is, owing to the compressibility of gas, piston position will change with extraneous load variations, have elasticity during locking under lock state, locking tool poor rigidity makes the locked position inaccuracy.The unsteady separator piston of another kind of band, the front end of fluid unsteady separator piston in cylinder barrel, float separator piston the rear end be high pressure nitrogen, under lock state because the compressibility of gas and the incompressibility of oil, piston has the characteristics of rigid locking at draw direction, but relatively poor at the compression direction rigid locking.
Have a kind of at present by between piston and floating piston, installing the fixedly two-way rigid locking air spring of floating valve additional, during the external force that must be subjected to suddenly in cylinder, pressing at piston rod, floating valve just can cut out, thereby realize the function of compression rigidity locking, and certain hysteresis quality is arranged the time in locking, floating valve will have higher sensitivity just can realize, the processing of component and the assembling difficulty of product are higher.
Summary of the invention
Order of the present utility model is to overcome the deficiency of above-mentioned prior art, but a kind of air spring at the compression direction rigid locking is provided.It is realized by following technological scheme:
Comprise cylinder barrel and place fluid, nitrogen, the separator piston that floats in the cylinder barrel, the piston that has spool and a damping hole be connected piston rear end and axle center and be provided with the piston rod of through hole and be plugged on the spool push rod that is connected with described spool in the described through hole of piston rod, the separator piston that it is characterized in that floating places the interior piston nose of cylinder barrel, head end in the cylinder barrel is equipped with the guided bearing of piston rod, place fluid at unsteady separator piston to cylinder barrel tail end, form hydraulic pressure cavity, place nitrogen at unsteady separator piston to cylinder barrel head end, form atmospheric pressure cavity.
Above-mentioned air spring further design is, float separator piston and piston adopt movingly with the inner chamber of cylinder barrel respectively, and seal with O-ring seals respectively.
Above-mentioned air spring further design is that the cylinder barrel head end is by high pressure nitrogen system of spool UNICOM.
The air spring of the present utility model separator piston that will float is placed on the piston front, make oil pocket in the back, air cavity in front, this ingenious unique design produces such beneficial effect: air spring possesses the ability of rigid locking at compression direction, locked position is accurate, malleable not, and easy to operate, practical.
Description of drawings
Fig. 1 is the structural representation of existing air spring.
Fig. 2 is structural representation of the present utility model.
Fig. 3 is the structural representation that the unsteady separator piston that amplified and upper valve core thereof are opened.
Fig. 4 is the structural representation that the unsteady separator piston that amplified and upper valve core thereof are opened.
Among the figure, 1 rod seal guided bearing, 2 piston rods, 3 unsteady separator pistons, 4 pistons, 5 fluid, 6 cylinder barrels, 7 nitrogen, 8 tails are stifled, 9 damping holes, 10 spools, 11 spool push rods.
Embodiment
Below in conjunction with drawings and Examples the utility model and advantage thereof are described further.
Referring to Fig. 1, Fig. 2, air spring of the present utility model mainly is made up of guided bearing 1, fluid 5 and the nitrogen 7 of cylinder barrel 6, float separator piston 3, piston 4, piston rod 2, piston rod.Float separator piston 3, piston 4 movingly at the inner chamber of cylinder barrel 6, and seal with O-ring seals respectively.Piston 4 is provided with spool 10 Buddhist nun holes 9.Piston rod 2 is connected the rear end of piston 4, and piston rod 2 is provided with the hollow structure of through hole for the axle center.Spool push rod 11 is plugged in the through hole at place, piston rod 2 axle center.Spool push rod 11 1 ends are connected with spool 10.Tail ends in the cylinder barrel 6 are equipped with and prevent that tail stifled 8 that fluid 5 leaks out along piston rod 2 and the piston rod guided bearing 1 that guarantees piston 4 easy motion cylinder barrel 6 in, guided bearing 1 from passing through its inner washer and piston rod 2 movingly.The separator piston 3 that floats places the front end of cylinder barrel inner carrier 4, places liquid oil 5 at unsteady separator piston 3 to cylinder barrel tail end, forms hydraulic pressure cavity, places high pressure nitrogen 7 at unsteady separator piston 3 to cylinder barrel head end, forms atmospheric pressure cavity.
The air spring of the foregoing description utilizes the incompressibility of fluid, hydraulic pressure cavity is placed on the back of the separator piston 3 that floats, make piston 4 under lock state, contact and produce rigid locking power with oil level, the separator piston 3 that floats fills high pressure nitrogen between cylinder barrel 6 head ends, the cylinder barrel head end is by spool 10 high pressure nitrogen systems, nitrogen pressure passes to fluid 5 by the separator piston that floats, act on the spool 10, and make its unlatching, piston rod 2 outside (left side) moves, how much that moves can adjust by the size of inflated with nitrogen pressure, and under the situation of external force greater than the mobile stretching force of piston rod outside (left side), piston rod compresses inward.Piston valve is closed, just can be with plunger lock in desired location, thus produce the rigid locking power of compression direction.
During work, the pressure of the high pressure nitrogen that air cavity charges into passes to fluid by the separator piston that floats, spool push rod in the piston rod moves to left, and the spool in the piston 3 is opened, and makes the fluid of piston both sides be communicated with by damping hole, piston 3 is under the effect of oil pressure, because of the active area difference of both sides, make piston produce the outwards power on (left side), thereby outwards move with piston rod, in case it is motionless that valve closing, piston just lock.When mobile, it is big that air cavity will become outside piston rod; When piston rod is pressed inwards, air cavity will diminish, and the separator piston that floats in this process will move around in cylinder barrel, and high pressure nitrogen is to be charged to air cavity with special device, and the stretching force size of piston rod is relevant with the nitrogen pressure of air cavity.
Claims (3)
1. but the air spring of a rigid locking, comprise cylinder barrel and place the interior fluid of cylinder barrel, nitrogen, separator piston floats, the piston that has spool and a damping hole be connected piston rear end and axle center and be provided with the piston rod of through hole and be plugged on the spool push rod that is connected with described spool in the described through hole of piston rod, the separator piston that it is characterized in that floating places the interior piston nose of cylinder barrel, head end in the cylinder barrel is equipped with the guided bearing of piston rod, place fluid at unsteady separator piston to cylinder barrel tail end, form hydraulic pressure cavity, place nitrogen at unsteady separator piston to cylinder barrel head end, form atmospheric pressure cavity.
2. but the air spring of a kind of rigid locking according to claim 1 is characterized in that adopting movingly with the inner chamber of cylinder barrel respectively at described unsteady separator piston and piston, and seals with O-ring seals respectively.
3. but the air spring of a kind of rigid locking according to claim 1 is characterized in that described cylinder barrel head end is by high pressure nitrogen system of spool UNICOM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202572692U CN201606440U (en) | 2009-11-05 | 2009-11-05 | Gas spring capable of rigidly locking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202572692U CN201606440U (en) | 2009-11-05 | 2009-11-05 | Gas spring capable of rigidly locking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201606440U true CN201606440U (en) | 2010-10-13 |
Family
ID=42951146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202572692U Expired - Fee Related CN201606440U (en) | 2009-11-05 | 2009-11-05 | Gas spring capable of rigidly locking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201606440U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278405A (en) * | 2011-05-23 | 2011-12-14 | 扬州市明瑞气弹簧有限公司 | Relative stiffness locked non-floating piston air spring |
| CN104420864A (en) * | 2013-08-29 | 2015-03-18 | 深圳市弗赛特检测设备有限公司 | Drilling tool simulation testing system |
| CN105387116A (en) * | 2015-12-21 | 2016-03-09 | 常州市莱特气弹簧有限公司 | Full-rigid air spring capable of being locked in any position |
| CN107387642A (en) * | 2017-08-11 | 2017-11-24 | 岳彩立 | It is a kind of ensure stroke lock gas spring |
| CN107558853A (en) * | 2017-09-04 | 2018-01-09 | 江西洪都航空工业集团有限责任公司 | A kind of cockpit cover opening mechanism |
| CN108167372A (en) * | 2018-02-26 | 2018-06-15 | 苏世博（南京）减振系统有限公司 | A kind of telescopic system device |
| CN110159696A (en) * | 2019-01-08 | 2019-08-23 | 北京机电工程研究所 | Composite buffering damper |
| CN110630668A (en) * | 2019-10-08 | 2019-12-31 | 浙江雨辰机械有限公司 | Air spring hovering locking structure |
-
2009
- 2009-11-05 CN CN2009202572692U patent/CN201606440U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278405A (en) * | 2011-05-23 | 2011-12-14 | 扬州市明瑞气弹簧有限公司 | Relative stiffness locked non-floating piston air spring |
| CN104420864A (en) * | 2013-08-29 | 2015-03-18 | 深圳市弗赛特检测设备有限公司 | Drilling tool simulation testing system |
| CN105387116A (en) * | 2015-12-21 | 2016-03-09 | 常州市莱特气弹簧有限公司 | Full-rigid air spring capable of being locked in any position |
| CN105387116B (en) * | 2015-12-21 | 2017-02-22 | 常州市莱特气弹簧有限公司 | Full-rigid air spring capable of being locked in any position |
| CN107387642A (en) * | 2017-08-11 | 2017-11-24 | 岳彩立 | It is a kind of ensure stroke lock gas spring |
| CN107558853A (en) * | 2017-09-04 | 2018-01-09 | 江西洪都航空工业集团有限责任公司 | A kind of cockpit cover opening mechanism |
| CN108167372A (en) * | 2018-02-26 | 2018-06-15 | 苏世博（南京）减振系统有限公司 | A kind of telescopic system device |
| CN110159696A (en) * | 2019-01-08 | 2019-08-23 | 北京机电工程研究所 | Composite buffering damper |
| CN110630668A (en) * | 2019-10-08 | 2019-12-31 | 浙江雨辰机械有限公司 | Air spring hovering locking structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101013 Termination date: 20151105 |
|
| EXPY | Termination of patent right or utility model |