CN107246451A - Pressure adjustable gas spring - Google Patents
Pressure adjustable gas spring Download PDFInfo
- Publication number
- CN107246451A CN107246451A CN201710426082.XA CN201710426082A CN107246451A CN 107246451 A CN107246451 A CN 107246451A CN 201710426082 A CN201710426082 A CN 201710426082A CN 107246451 A CN107246451 A CN 107246451A
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- CN
- China
- Prior art keywords
- hole
- valve body
- plug
- outer cylinder
- gas 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.)
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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
- F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
- F16F9/062—Bi-tubular units
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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
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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
- F16F9/44—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction
Abstract
The invention discloses a kind of pressure adjustable gas spring, including：Two ends have the outer cylinder of opening；In outer cylinder and two ends have the inner cylinder tube of opening, floating separator piston is provided between inner cylinder tube and outer cylinder；One end of piston rod is provided with first piston and in inner cylinder tube；One end of valve body is located in outer cylinder and provided with the first seal member, and the other end of valve body is located in inner cylinder tube and provided with the second seal member；One end of control unit is blocked the second hole under medium pressure liquid；The valve body for can along the axial movement of outer cylinder and inner cylinder tube valve body；The adjusting part that valve body can be made to be moved axially along outer cylinder and inner cylinder tube, supported through the second plug with valve body one end of adjusting part, the other end exposure of adjusting part is in atmosphere, adjusting part is provided with through hole, and one end of the control unit exposes in atmosphere after being passed through successively from the second hole on valve body, the through hole on adjusting part.The internal pressure of gas spring can be adjusted by the present invention.
Description
Technical field
The present invention relates to a kind of pressure adjustable gas spring.
Background technology
Main piston, piston rod and valve rod in cylinder barrel, cylinder barrel of gas spring etc. is constituted, and storage has gas and oil in cylinder barrel
Liquid.The volume in cylinder barrel is occupied due to piston, during work in piston rod press-in cylinder barrel, piston axially moves crowded in cylinder barrel
Liquid is pressed oil, and fluid compressed gas makes piston reach operating position；After loading external force on the piston rod disappears, then gas
Restore and expand, the gas push fluid of expansion makes piston reset, and piston rod is removed, gas spring is realized compression motion and multiple
Former damped motion.
Publication No. CN202402546U utility model patent discloses a kind of rigid locking seat lifting air spring, such as
Shown in Fig. 5, including cylinder barrel 5, piston rod 1, valve body 10 and valve element 11, guide sleeve 2 and pilot seal circle 3 are sleeved on piston rod 1
And in cylinder barrel 5, one end of piston rod 1, which passes cylinder barrel 5, the other end, has piston 8, and inner sleeve 6 has resistance by two ends
Buddhist nun's stomata 4-1 preceding bearing 4 and valve body 10 with damping oil hole 10-1 are fixed in cylinder barrel 5, and piston 8 is sealingly disposed in inner sleeve
Pipe 6 is interior and inner sleeve 6 is divided into air cavity 18 and rear interior oil pocket 16 in preceding；Described valve body 10 is sealed with cylinder barrel 5 and inner sleeve 6
Connect, and valve element 11 is arranged on valve body 10 by wear-resistant sleeve 15, wear-resistant sleeve 15 is provided with oilhole 15-1, the valve of the front end of valve element 11
Lid is corresponding with the valve seat 9 on valve body 10, valve body 10 and the correspondence of starting bar 13 are stretched out in the rear end of valve element 11, and starting bar 13 passes through rear support
12 are arranged on the rear portion of cylinder barrel 5, and floating separator piston 7 is sealingly mounted between cylinder barrel 5 and inner sleeve 6 and by cylinder barrel 5 and inner sleeve 6
Between cavity be divided into preceding outer air cavity 19 and rear outer oil cavity 17, preceding interior air cavity 18 by the damping stomata 4-1 on preceding bearing 4 with
Preceding outer air cavity 19 is communicated, and rear outer oil cavity 17 is by the oilhole 15-1 on the damping oil hole 10-1 and wear-resistant sleeve 15 on valve body 10 with after
Interior oil pocket 16 is communicated.
For above-mentioned gas spring, when load be more than inside of air spring pressure when, piston rod 2 cannot normal extension,
Or it is unable to full extension in place, this pressure adjustable gas spring solves this problem, is supported on certain more than gas-spring pressure
During weight, the adjustment of stretching force and compression stress is accomplished in the adjustment by pressure regulating axis to air cavity spatial volume.
The content of the invention
For above-mentioned technical problem, the present invention provides a kind of pressure adjustable gas spring.
Technical scheme is as follows：
Pressure adjustable gas spring, including：Two ends have the outer cylinder of opening, and one end of outer cylinder, which is set, has first through hole
The first plug, the other end of outer cylinder sets the second plug with the second through hole；
In outer cylinder and two ends have the inner cylinder tube of opening, isolate work provided with floating between inner cylinder tube and outer cylinder
Plug；
Piston rod, one end of piston rod is provided with first piston and in inner cylinder tube, the other end and inner cylinder tube of piston rod
A splaying coordinate after reach the outside of outer cylinder through the first plug；
Valve body, one end of the valve body is located in outer cylinder and provided with the first seal member, and the other end of valve body is located at inner casing
In cylinder and provided with the second seal member, valve body is provided with the first hole that medium flows through for liquid and connected with the first hole second
Hole, radial arrangement of first hole along valve body, the second hole is along the axial arranged of valve body；
Control liquid medium flows through the control unit of valve body, and one end of control unit is under medium pressure liquid by the second hole
Blocked；
The valve body for can along the axial movement of outer cylinder and inner cylinder tube valve body；
Also include the adjusting part that valve body can be made to be moved axially along outer cylinder and inner cylinder tube, the adjusting part is arranged on second
On plug, one end of adjusting part is supported through the second plug with valve body, and the other end exposure of adjusting part is adjusted in atmosphere
Component is provided with through hole, and one end of the control unit is successively after the second hole on valve body, the through hole on adjusting part are passed through
Exposure is in atmosphere.
The beneficial effects of the invention are as follows：By adjusting part can to valve body position adjustment, valve body and floating separator piston it
Between be oil pocket, because hydraulic oil is incompressible medium, after adjusting part adjustment, force floating piston to move, isolation of floating is lived
The nitrogen of plug compression air cavity, because air cavity volume reduces, internal pressure increase, so that the area compresses of gas are loaded, in increase
Portion's pressure, plays the function of pressure adjustable, and after control unit is opened, the pressure that floating separator piston is subject to also becomes big, piston
Stretching force when bar stretches also increases therewith, therefore still has enough thrust, gas bullet (under a fixed load) when load becomes weight
The piston rod of spring can be with full extension to peak.Anti- timing, because there is certain pressure inside, floating separator piston is by lower end air cavity
Pressure, move up, the hydraulic oil of upper end oil pocket and control valve pushed up, air cavity volume becomes big, therefore works as air spring piston
At present pressure can reduce for bar compression, easily push.
This pressure adjustable gas spring had both solved the problems, such as the rigid locking of prior art, solved again after load becomes weight
Can not normal extension the problem of, in the prior art when load be more than inside of air spring pressure when, piston rod cannot normal extension,
Or it is unable to full extension in place, this pressure adjustable gas spring solves this problem, is supported on certain more than gas-spring pressure
During weight, the adjustment of stretching force and compression stress is accomplished in the adjustment by adjusting part to air cavity spatial volume.
Brief description of the drawings
Fig. 1 is the cross-sectional view of the first pressure adjustable gas spring of the present invention；
Fig. 2 is a kind of schematic diagram of embodiment of second of pressure adjustable gas spring of the present invention；
Fig. 3 is the schematic diagram of another embodiment of second of pressure adjustable gas spring of the present invention；
Fig. 4 is the cross-sectional view of the third pressure adjustable gas spring of the present invention；
Fig. 5 is the schematic diagram of rigid locking seat lifting air spring in the prior art.
Reference in accompanying drawing shown in Fig. 1 to Fig. 3：
1 is outer cylinder, and 2 be the first plug, and 3 be the second plug, and 4 be inner cylinder tube, and 5 be floating separator piston, and 6 be piston
Bar, 6a is first piston, and 7 be ventilative bearing, and 7a is radial dilatation part, and 8 be support, and 9 be valve body, and 9a is the first sealing
Part, 9b is the second seal member, and 9c is the first hole, and 9d is the second hole, and 9e is spacer, and 9f is sealing ring, and 10 be control unit,
10a is projection, and 11 be sleeve pipe, and 12 be pivoted housing, and 12a is radial protrusion, and 12b is axially-extending portion, and 13 be hollow shaft, and 13a is to lead
To part, 14 be gland, and 15 be bearing, and 16 be axle sleeve.
Embodiment
First embodiment：
As shown in figure 1, the pressure adjustable gas spring of the present invention, including outer cylinder, inner cylinder tube, floating separator piston, piston
Bar, valve body, adjusting part, the structure to every part and the relation between them are described in detail below：
The two ends of outer cylinder 1 have opening, and one end of outer cylinder 1 sets the first plug 2 with first through hole, outer cylinder
The other end the second plug 3 with the second through hole is set, the first plug 2 and the second plug 3 it is preferential using interference by the way of and
Outer cylinder 1 coordinates.The two ends of inner cylinder tube 4 have opening, and inner cylinder tube 4 is located in outer cylinder.
Floating separator piston 5 is arranged between inner cylinder tube and outer cylinder, and outer cylinder 1 is divided into two by floating separator piston 5
Region, is the region of loading liquid medium (such as oily) positioned at the region of the side of floating separator piston 5, positioned at floating separator piston
The region of 5 opposite sides is loads the region of gas (such as nitrogen), and when the areal pressure of both sides changes, floating separator piston 5 is just
Can along outer cylinder 1 axial movement.
One end of piston rod 6 is provided with first piston 6a and in inner cylinder tube 4, the other end and the inner cylinder tube 4 of piston rod 6
One splaying reaches the outside of outer cylinder through the first plug and exposed in atmosphere after coordinating；By piston rod 6 and set
The first piston 6a on piston rod 6 is put, inner cylinder tube 4 is separated into two regions, the region positioned at first piston 6a sides is
The region of loading liquid medium (such as oily), positioned at area of the region of first piston 6a opposite sides for loading gas (such as nitrogen)
Domain, when the areal pressures of both sides changes, piston rod 6 and first piston 6a just can along inner cylinder tube 4 axial movement so that
Piston rod 6 produces the action stretched or contracted, corresponding with the load generation driven to the piston rod 6 exposes aerial end connection
Action, be for example supported on longitudinal liter or drop, or be supported on horizontal feeding or retraction.
Provided with ventilative bearing 7 in inner cylinder tube 4, the one end for bearing 7 of breathing freely is located in inner cylinder tube 4, during ventilative bearing 7 is provided with
Heart hole, the piston rod 6 is passed through from the centre bore on ventilative bearing 7, so that piston rod 6 coordinates with the ventilative gap of bearing 7, thoroughly
Gas bearing 7 is provided with radial dilatation part 7a, and the other end for bearing 7 of breathing freely is located at the outside of inner cylinder tube 4, and radial dilatation part 7a is set
Ventilative bearing 7 is placed on the part of the outside of inner cylinder tube 4, the radial dilatation part 7a coordinates with outer cylinder 1, so, interior
Cylinder barrel 4 is supported in outer cylinder 1 by ventilative bearing 7, and is provided with air-vent on the 7a of radial dilatation part, and this is saturating
Stomata is by the regional connectivity of the loading gas of region and the inner cylinder tube 4 of the loading gas of outer cylinder 1 so that be mounted with ventilative branch
Seat 7 and, the region of the loading gas of outer cylinder 1 and inner cylinder tube 4 will not be blocked.Have between the ventilative plug 2 of bearing 7 and first
Interval or gap, when for interval, are provided between the ventilative plug 2 of bearing 7 and first in the present invention and have coated seal member
Support 8 so that between ventilative bearing 7 and support 8 formed a cavity, in order to which gas is in the loading gas of outer cylinder 1
Region and inner cylinder tube 4 loading gas region between successfully flow.
One end of valve body 9 is located in outer cylinder and provided with the first seal member 9a, and the other end of valve body 9 is located in inner cylinder tube
And provided with the second seal member 9b, valve body 9 provided with the first hole 9c that medium flows through for liquid and connected with the first hole the
The radial arrangement of two hole 9d, the first hole 9c along valve body 9, the second hole 9d is set along the axial arranged of valve body 9 in the second hole 9d
There is spacer 9e, spacer 9e is additionally provided with positioned at spacer 9e two ends provided with the opening that medium flows through for liquid in the second hole 9d
Sealing ring 9f.Valve body 9 for can along the axial movement of outer cylinder and inner cylinder tube valve body, it is preferable that between valve body 9 and outer cylinder 1
It is spaced and coordinates with inner cylinder tube 4 every cooperation, and valve body 9, the liquid medium in outer cylinder 1 is carried out by the first seal member 9a
Sealing, to avoid the liquid medium in outer cylinder 1 from being flowed out by the gap between valve body 9 and outer cylinder.Pass through the second sealing
Part 9b is sealed to the liquid medium in inner cylinder tube 2, to avoid the liquid medium in inner cylinder tube 4 not by valve body 9 and
In the case that control unit 10 is controlled, in the region of the loading liquid medium of outer cylinder 1 and the loading liquid medium of inner cylinder tube 4
Flee between region.
The control liquid medium of control unit 10 flows through valve body, and control unit 10 is in shaft-like, and one end of control unit 10 is in liquid
The second hole is blocked under body pressure medium.
Adjusting part can be such that valve body 9 is moved axially along outer cylinder 1 and inner cylinder tube 4, and adjusting part is arranged on the second plug 3
On, one end of adjusting part is supported through the second plug 3 with valve body 9, and the other end of adjusting part exposes in atmosphere, regulation group
Part is provided with through hole, and one end of the control unit 10 is successively after the second hole on valve body, the through hole on adjusting part are passed through
Exposure is in atmosphere.The second through hole on second plug 3 is screwed hole, and the adjusting part includes sleeve pipe 11, the sleeve pipe 11
Outer circumference surface is provided with screw thread, and described sleeve pipe 11 is extend into the second through hole to be connected through a screw thread with the second plug 3, by rotating forward
Sleeve pipe 11, sleeve pipe 11 applies axial feeding active force to valve body 9 when feeding, so that valve body 9 will be moved to piston rod 6, due to
Liquid medium is not easy or can not compressed, therefore, and active force is acted on floating separator piston 5, moves floating separator piston,
So as to which the gas in the region for loading gas be compressed, so, the area reduction of gas is loaded, conversely, what gas was produced
Pressure is also bigger.When inverting sleeve pipe 11, sleeve pipe 11 bounces back, and the region for loading gas becomes big, and the pressure that gas is produced diminishes,
Therefore, by rotating and reverse sleeve 11, the pressure for producing gas produces change, and then can be to the integral pressure root of gas spring
It is adjusted according to needs.The through hole that the control unit 10 is provided with the projection 10a of radial direction, described sleeve pipe 11 is stepped hole,
The step surface of stepped hole can form the effect of axial limiting to projection 10a.
Embodiment two：
Present embodiment is that the structure of adjusting part is differed with above-mentioned implementation formula difference, in present embodiment
The concrete structure of adjusting part is as follows：
As shown in Figures 2 and 3, adjusting part includes：Pivoted housing 12, hollow shaft 13, gland 14.Pivoted housing 12 rotatably arranged with
On the second plug, pivoted housing axial limiting is on the second plug, and gland 14 has to be set on pilot hole, the outer peripheral face of the pivoted housing 12
Have after radial protrusion 12a, gland 14 be enclosed on pivoted housing 12 and be pressed on the radial protrusion 12a of pivoted housing 12, the plug 3 of gland 14 and second
It is fixedly connected so as to the formation axial limiting of pivoted housing 12.Pilot hole on the gland 14 is stepped hole, the step of the stepped hole
Face is supported with the radial protrusion 12a on pivoted housing 12, in mode preferably, on pivoted housing 12 and radial protrusion 12a and gland 14
Stepped hole difference gap coordinates, and so both forms axial limiting to pivoted housing 12, pivoted housing 12 is also obtain in radial direction again
It is spacing, and pivoted housing 12 again can freely rotate.
One end of hollow shaft 13 is supported through the second plug 3 with valve body 9, and the axial end of the other end of hollow shaft 13 is curved surface
(such as cam curved surface), is either inclined-plane or for asymmetrical sphere；The through-hole wall face of the pivoted housing 12 be provided with it is hollow
The curved surface or inclined-plane of the surface engagement of axle 13 or asymmetrical sphere, in the embodiment shown in Figure 2, hollow shaft 13 lead to pivoted housing 12
Asymmetrical mating spherical surfaces are crossed, in the embodiment shown in fig. 3, hollow shaft 13 is cooperated with pivoted housing 12 by inclined-plane.When turn
During dynamic pivoted housing 12, pivoted housing 12 is mutually extruded with hollow shaft 13 by curved surface, either by the mutual extruding on inclined-plane or by non-
The mutual extruding of symmetrical sphere, makes hollow shaft produce axial displacement.In order to prevent hollow shaft 13 because of frictional force with pivoted housing 12
Rotate, the outer peripheral face of the hollow shaft 13 is provided with guiding parts 13a, the internal face of the second through hole of second plug 3
Provided with guide groove, guiding parts 13a gaps coordinate in guide groove, so when rotating pivoted housing 12, although pivoted housing 12 with it is hollow
Have friction force between axle 13, but due to hollow shaft 13 circumferencial direction by the combination of guiding parts 13a and guide groove by
Limitation is arrived, therefore, hollow shaft 13 can not be rotated, so that hollow shaft 13 is only moved axially.
3rd embodiment：
Present embodiment is with second embodiment difference, (such as Fig. 4 institutes on the basis of second embodiment
Show), annular groove, axially-extending portion of the one end provided with annular of pivoted housing 12 will be provided with the axial end of second plug 3
12b, axially-extending portion 12b, are arranged in the annular groove of the second plug 3, present embodiment middle (center) bearing 15 by bearing 15
Quantity preferentially use 2.Axle sleeve 16 is cased with axially-extending portion 12b, axle sleeve 16 separates two bearings 15, and right
One end of bearing 15 forms axial limiting, and the other end of one of bearing is by the bottom axial limiting of annular groove, another
The other end of individual bearing 15 can so prevent bearing from occurring axial float then by radial protrusion 12a axial limitings.
In addition, the pressure adjustable gas spring of the present invention can be applied in office furniture, including office chair, desk etc., doctor
Equipment, body-building apparatus are treated, Home furniture includes chair, coffee table etc., and vapour gas spring for automobile and all kinds of plant equipment etc. need firm
Property telescopic adjustment, application is wider, while overall structure is also simpler, saves production cost.
Claims (10)
1. pressure adjustable gas spring, including：Two ends have the outer cylinder of opening, and one end of outer cylinder is set with first through hole
First plug, the other end of outer cylinder sets the second plug with the second through hole；
In outer cylinder and two ends have the inner cylinder tube of opening, floating separator piston is provided between inner cylinder tube and outer cylinder；
Piston rod, one end of piston rod is provided with first piston and in inner cylinder tube, the other end of piston rod and the one of inner cylinder tube
Splaying reaches the outside of outer cylinder through the first plug after coordinating；
Valve body, one end of the valve body is located in outer cylinder and provided with the first seal member, and the other end of valve body is located in inner cylinder tube
And provided with the second seal member, valve body is provided with the first hole that medium flows through for liquid and the second hole connected with the first hole,
Radial arrangement of first hole along valve body, the second hole is along the axial arranged of valve body；
Control liquid medium flows through the control unit of valve body, and one end of control unit is carried out the second hole under medium pressure liquid
Closure；
Characterized in that, the valve body for can along the axial movement of outer cylinder and inner cylinder tube valve body；
Also include the adjusting part that valve body can be made to be moved axially along outer cylinder and inner cylinder tube, the adjusting part is arranged on the second plug
On, one end of adjusting part is supported through the second plug with valve body, and the other end of adjusting part exposes in atmosphere, adjusting part
Through hole is provided with, one end of the control unit exposes after being passed through successively from the second hole on valve body, the through hole on adjusting part
In atmosphere.
2. pressure adjustable gas spring according to claim 1, it is characterised in that the second through hole on second plug is
Screwed hole, the adjusting part includes sleeve pipe, and the outer circumference surface of the sleeve pipe is provided with screw thread, and described sleeve pipe extend into the second through hole
In be connected through a screw thread with the second plug.
3. pressure adjustable gas spring according to claim 2, it is characterised in that the control unit is prominent provided with radial direction
Rise, the through hole in described sleeve pipe is stepped hole.
4. pressure adjustable gas spring according to claim 1, it is characterised in that the adjusting part includes：Rotationally
The pivoted housing on the second plug is arranged on, pivoted housing axial limiting is on the second plug；
Hollow shaft, one end of the hollow shaft is supported through the second plug with valve body, and the axial end of the hollow shaft other end is curved surface,
It is either inclined-plane or for asymmetrical sphere；
The through-hole wall face of the pivoted housing is being rotated provided with the curved surface or inclined-plane or asymmetrical sphere with hollow shaft surface engagement
During pivoted housing, pivoted housing is extruded with hollow shaft by curved surface or inclined-plane, hollow shaft is produced axial displacement.
5. pressure adjustable gas spring according to claim 4, it is characterised in that the outer peripheral face of the hollow shaft is provided with and led
To part, the internal face of second through hole is provided with guide groove, and guiding parts gap coordinates in guide groove.
6. pressure adjustable gas spring according to claim 4, it is characterised in that also including the gland with pilot hole, institute
The outer peripheral face for stating pivoted housing is provided with radial protrusion, after gland is enclosed on pivoted housing and is pressed on the radial protrusion of pivoted housing, gland and second
Plug is fixedly connected so as to pivoted housing formation axial limiting.
7. pressure adjustable gas spring according to claim 6, it is characterised in that the pilot hole on the gland is step
Radial protrusion on hole, the step surface and pivoted housing of the stepped hole is supported.
8. pressure adjustable gas spring according to claim 4, it is characterised in that set on the axial end of second plug
There is annular groove, one end of pivoted housing is arranged in the annular groove by bearing.
9. the pressure adjustable gas spring according to claim 1 to 8 any one, it is characterised in that provided with saturating in inner cylinder tube
Gas bearing, bearing of breathing freely is provided with centre bore, and the piston rod is passed through from the centre bore on ventilative bearing,
The ventilative bearing is provided with radial dilatation part, and the radial dilatation part coordinates with outer cylinder, and radial dilatation part is provided with
Air-vent.
10. a kind of application of pressure adjustable gas spring as described in claim 1 to 9 any one, it is characterised in that the pressure
Power can regulating the qi flowing in the channels spring be applied to office furniture in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710426082.XA CN107246451B (en) | 2017-06-08 | 2017-06-08 | Pressure adjustable gas spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710426082.XA CN107246451B (en) | 2017-06-08 | 2017-06-08 | Pressure adjustable gas spring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107246451A true CN107246451A (en) | 2017-10-13 |
| CN107246451B CN107246451B (en) | 2022-11-25 |
Family
ID=60018987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710426082.XA Active CN107246451B (en) | 2017-06-08 | 2017-06-08 | Pressure adjustable gas spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107246451B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109236927A (en) * | 2018-11-13 | 2019-01-18 | 徐州东宏机械制造有限公司 | A kind of two-tube gas spring device |
| CN110397693A (en) * | 2019-07-10 | 2019-11-01 | 北京磊焱氮气弹簧技术研究所 | One kind filling constant force controlling type Oil-gas Separation gas spring power device again |
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| CN207005175U (en) * | 2017-06-08 | 2018-02-13 | 常州市莱特气弹簧有限公司 | Pressure adjustable gas spring |
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|---|---|---|---|---|
| US3885777A (en) * | 1969-10-29 | 1975-05-27 | Bourcier Carbon Christian | Level corrector for shock absorbers |
| US5273259A (en) * | 1990-03-21 | 1993-12-28 | Suspa Compart Aktiengesellschaft | Longitudinally adjustable gas spring |
| US6105988A (en) * | 1997-07-16 | 2000-08-22 | Rockshox, Inc. | Adjustable suspension system having positive and negative springs |
| JP2002303345A (en) * | 2001-04-05 | 2002-10-18 | Kayaba Engineering & Service Kk | Gas spring |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109236927A (en) * | 2018-11-13 | 2019-01-18 | 徐州东宏机械制造有限公司 | A kind of two-tube gas spring device |
| CN110397693A (en) * | 2019-07-10 | 2019-11-01 | 北京磊焱氮气弹簧技术研究所 | One kind filling constant force controlling type Oil-gas Separation gas spring power device again |
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| CN107246451B (en) | 2022-11-25 |
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