CN102213288A - Low-pressure controllable gas spring - Google Patents
Low-pressure controllable gas spring Download PDFInfo
- Publication number
- CN102213288A CN102213288A CN 201110135341 CN201110135341A CN102213288A CN 102213288 A CN102213288 A CN 102213288A CN 201110135341 CN201110135341 CN 201110135341 CN 201110135341 A CN201110135341 A CN 201110135341A CN 102213288 A CN102213288 A CN 102213288A
- Authority
- CN
- China
- Prior art keywords
- piston
- pressure cap
- valve needle
- needle
- piston rod
- 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
Images
Abstract
The invention provides a low-pressure controllable gas spring, which relates to the fields of a spring, a shock reducer and a shock reducing device, particularly relates to a structure of a gas spring. The gas spring comprises a cylinder, a piston, a piston rod and a valve needle; the piston is arranged in the cylinder; the piston rod is arranged in the cylinder in a penetrable manner; the rear end of the piston rod is fixedly connected with the piston; the valve needle is arranged in the piston rod and the piston in a penetrable manner; a closed lug boss is arranged at the rear end of the piston integrally; the rear end of the valve needle is arranged in the closed lug boss in a penetrable manner; the rear side of the piston is provided with a pressure cap; a through hole is radially formed on the pressure cap; one end of the pressure cap is an opening end; and the other end of the pressure cap is a blind end; the opening end of the pressure cap and the piston are integrally arranged; a groove is radially formed outside the valve needle in the closed lug boss; an axle bumper and a mechanical spring are sleeved outside the valve needle; the axle bumper is clamped in the groove of the valve needle; and the mechanical spring is arranged between the axle bumper and the blind end of the pressure cap. In the invention, a mechanical spring is additionally arranged at the tail end of the valve needle to help the valve needle reset, and sufficient oil is filled to form relative rigid locking. The gas spring can realize relative rigid locking of the low-pressure controllable gas spring.
Description
Technical field
The present invention relates to the field of a kind of spring, vibration damper, damping device, particularly the structure of air spring.
Background technique
Air spring is a kind ofly can play support, buffering, braking, highly regulate and the accessory of function such as angle adjustment, is widely used in fields such as medical equipment, automobile, furniture, Weaving device, machine-building.Principle is to charge into inert gas or gas mixture in airtight cylinder barrel, make the pressure in the cavity be higher than atmospheric several times or tens times, thereby the pressure difference that the cross-section area that utilizes piston rod produces less than the cross-section area of piston realize the motion of piston rod.At present, controllable type air spring minimum stretch power is lower than 50N, if the flexibility of making, its latching force is very poor; If it is very big to make its resistance of rigidity.General needle can't be from horizontal reset when being lower than 50N.
Summary of the invention
The objective of the invention is in order to overcome the deficiencies in the prior art, needle can be from the low pressure controllable type air spring of horizontal reset when a kind of low pressure was provided.
The object of the present invention is achieved like this: low pressure controllable type air spring, comprise cylinder barrel, piston, piston rod and needle, piston is arranged in the cylinder barrel, piston rod is set in the cylinder barrel, fixedly connected with piston in the rear end of piston rod, needle is set in piston rod and the piston, the rear end disjunctor of described piston is provided with the closing in boss, the rear end of described needle is set in the closing in boss, the rear side of piston is provided with pressure cap, and through hole radially is set on the pressure cap, and an end of pressure cap is an opening end, the other end of pressure cap is a cecum, and the opening end of pressure cap and piston disjunctor are provided with; Needle outer radial in the described closing in boss is provided with groove, and needle is nested with axle bumper and mechanical spring outward, and axle bumper is stuck in the groove of needle, and mechanical spring is provided with between the cecum of axle bumper and pressure cap.
The present invention can't reset in order to overcome low pressure controllable type air spring needle, does not hold at needle to add a mechanical spring, helps it to reset, and its oil of annotating q.s is made the relative rigidity locking.Can realize the relative rigidity locking of low pressure controllable type air spring.
Needle of the present invention also is nested with packing ring outward, and packing ring is arranged on the front side of axle bumper, and packing ring is arranged between closing in the boss interior piston and pressure cap.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention.
Fig. 2 is an I portion enlarged view among Fig. 1.
Among the figure, 1 piston rod, 2 needles, 3 cylinder barrels, 4 pistons, 5 axle bumpers, 6 through holes, 7 mechanical springs, 8 pressure caps, 9 closing in boss, 11 packing rings, 12 grooves.
Embodiment
As Fig. 1, shown in 2, be low pressure controllable type air spring, comprise cylinder barrel 3, piston 4, piston rod 1 and needle 2, piston 4 is arranged in the cylinder barrel 3, piston rod 1 is set in the cylinder barrel 3, fixedly connected with piston 4 in the rear end of piston rod 1, needle 2 is set in piston rod 1 and the piston 4, the rear end disjunctor of piston 4 is provided with closing in boss 9, and the rear end of needle 2 is set in the closing in boss 9, and the rear side of piston 4 is provided with pressure cap 8, through hole 6 radially is set on the pressure cap 8, one end of pressure cap 8 is an opening end, and the other end of pressure cap 8 is a cecum, and the opening end of pressure cap 8 is by back and the piston 4 disjunctor settings of closing up that press.Needle 2 outer radials in the closing in boss 9 are provided with groove 12, needle 2 outer packing ring 11, axle bumper 5 and the mechanical springs 7 of being nested with, packing ring 11 is arranged in the closing in boss 9, packing ring 11 is arranged between the piston 4 and pressure cap 8 in the closing in boss 9, axle bumper 5 is arranged on the rear side of packing ring 11, axle bumper 5 is stuck in the groove 12 of needle 2, and mechanical spring 7 is provided with between the cecum of axle bumper 5 and pressure cap 8.
Claims (2)
1. low pressure controllable type air spring, comprise cylinder barrel, piston, piston rod and needle, piston is arranged in the cylinder barrel, piston rod is set in the cylinder barrel, fixedly connected with piston in the rear end of piston rod, needle is set in piston rod and the piston, it is characterized in that: the rear end disjunctor of described piston is provided with the closing in boss, the rear end of described needle is set in the closing in boss, the rear side of piston is provided with pressure cap, and through hole radially is set on the pressure cap, and an end of pressure cap is an opening end, the other end of pressure cap is a cecum, and the opening end of pressure cap and piston disjunctor are provided with; Needle outer radial in the described closing in boss is provided with groove, and needle is nested with axle bumper and mechanical spring outward, and axle bumper is stuck in the groove of needle, and mechanical spring is provided with between the cecum of axle bumper and pressure cap.
2. low pressure controllable type air spring according to claim 1 is characterized in that: described needle also is nested with packing ring outward, and packing ring is arranged on the front side of axle bumper, and packing ring is arranged between closing in the boss interior piston and pressure cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101353416A CN102213288B (en) | 2011-05-24 | 2011-05-24 | Low-pressure controllable gas spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101353416A CN102213288B (en) | 2011-05-24 | 2011-05-24 | Low-pressure controllable gas spring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102213288A true CN102213288A (en) | 2011-10-12 |
| CN102213288B CN102213288B (en) | 2012-11-07 |
Family
ID=44744734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101353416A Expired - Fee Related CN102213288B (en) | 2011-05-24 | 2011-05-24 | Low-pressure controllable gas spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102213288B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201078429Y (en) * | 2007-09-14 | 2008-06-25 | 施与秋 | Return type lockable gas spring |
| JP2009014159A (en) * | 2007-07-09 | 2009-01-22 | Koganei Corp | Shock absorber |
| CN201487116U (en) * | 2009-06-15 | 2010-05-26 | 南通金桑机械精密部件有限公司 | Lockable gas traction spring |
| CN201487117U (en) * | 2009-06-15 | 2010-05-26 | 南通金桑机械精密部件有限公司 | Lockable gas spring with relatively light compressive force and customizable stretching speed |
| CN201507596U (en) * | 2009-07-06 | 2010-06-16 | 唐善培 | Improved structure of damper for furniture with reset function |
| CN201561085U (en) * | 2009-09-24 | 2010-08-25 | 上海震飞汽车零部件有限公司 | Lockable stretching gas spring |
| CN202118177U (en) * | 2011-05-24 | 2012-01-18 | 扬州市明瑞气弹簧有限公司 | Low-pressure controllable gas spring |
-
2011
- 2011-05-24 CN CN2011101353416A patent/CN102213288B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009014159A (en) * | 2007-07-09 | 2009-01-22 | Koganei Corp | Shock absorber |
| CN201078429Y (en) * | 2007-09-14 | 2008-06-25 | 施与秋 | Return type lockable gas spring |
| CN201487116U (en) * | 2009-06-15 | 2010-05-26 | 南通金桑机械精密部件有限公司 | Lockable gas traction spring |
| CN201487117U (en) * | 2009-06-15 | 2010-05-26 | 南通金桑机械精密部件有限公司 | Lockable gas spring with relatively light compressive force and customizable stretching speed |
| CN201507596U (en) * | 2009-07-06 | 2010-06-16 | 唐善培 | Improved structure of damper for furniture with reset function |
| CN201561085U (en) * | 2009-09-24 | 2010-08-25 | 上海震飞汽车零部件有限公司 | Lockable stretching gas spring |
| CN202118177U (en) * | 2011-05-24 | 2012-01-18 | 扬州市明瑞气弹簧有限公司 | Low-pressure controllable gas spring |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102213288B (en) | 2012-11-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2364904A3 (en) | Bicycle air shock assemblies with tunable suspension performance | |
| JP5847612B2 (en) | Spring leg for front fork | |
| WO2012030761A3 (en) | Gas spring assembly for a vehicle suspension system | |
| EP2128481A3 (en) | Bicycle damper | |
| CN201606440U (en) | Gas spring capable of rigidly locking | |
| CN202118167U (en) | Compression-type air spring capable of locking itself and jumping out | |
| CN202118177U (en) | Low-pressure controllable gas spring | |
| EP2397407A3 (en) | Torque link with shimmy damper | |
| US9731574B2 (en) | Shock absorber gas spring seal | |
| CN204127188U (en) | A kind of rubber air spring being applicable to bullet train vibration isolation sound insulation | |
| EP2749787A3 (en) | Shock absorber, front fork, and saddle-ride type vehicle | |
| CN103573906A (en) | Vibration damper with frequency-selective damping force | |
| CN102213288B (en) | Low-pressure controllable gas spring | |
| CN102207150A (en) | Compression gas spring | |
| CN203335529U (en) | Magnetic buffer air cylinder | |
| CN202118168U (en) | Compression air spring | |
| EP2246585A3 (en) | Shock absorber | |
| CN204358010U (en) | Novel automobile shock absorber | |
| CN102207152A (en) | Compression type gas spring with double rods | |
| CN213360917U (en) | Annular shock absorber and damper assembly | |
| CN102207151A (en) | Compression gas spring capable of being self-locked and bounced | |
| CN203868218U (en) | Improved shock absorber assembly | |
| CN202768716U (en) | Rear shock absorber capable of reducing oil leakage and stabilizing damping effect | |
| CN202118169U (en) | Air spring for preventing over-loosing or over-tension of retainer ring | |
| CN202719068U (en) | Gas spring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20111012 Assignee: JIANGSU MINGRUI GAS SPRING CO., LTD. Assignor: Jiangdu Mingrui Gas Spring Manufacturing Co.,Ltd. Contract record no.: 2014320000601 Denomination of invention: Low-pressure controllable gas spring Granted publication date: 20121107 License type: Exclusive License Record date: 20140722 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121107 Termination date: 20170524 |