CN202402546U - Lifting air spring of rigidity locking seat - Google Patents
Lifting air spring of rigidity locking seat Download PDFInfo
- Publication number
- CN202402546U CN202402546U CN2011205103862U CN201120510386U CN202402546U CN 202402546 U CN202402546 U CN 202402546U CN 2011205103862 U CN2011205103862 U CN 2011205103862U CN 201120510386 U CN201120510386 U CN 201120510386U CN 202402546 U CN202402546 U CN 202402546U
- Authority
- CN
- China
- Prior art keywords
- valve body
- inner sleeve
- cylinder barrel
- sleeve
- piston
- 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.)
- Expired - Lifetime
Links
Landscapes
- Fluid-Damping Devices (AREA)
Abstract
The utility model relates to a lifting air spring of a rigidity locking seat. A guide sleeve and a guide sealing ring are sleeved on a piston rod and installed in a cylinder tube. An inner sleeve is fixed in the cylinder tube through a front support seat and a valve body at two ends, a piston is arranged in the inner sleeve in sealing mode and divides the inner sleeve into a front inner air cavity and a back inner oil cavity, the valve body is connected with the cylinder tube and the inner sleeve in sealing mode, a valve core is installed on the valve body through an abrasion resistant sleeve, a valve cover at the front end of the valve core corresponds to a valve seat on the valve body, the back end of the valve core penetrates out of the valve body to correspond to a starting rod, the starting rod is installed on the back portion of the cylinder tube through a back support seat, a floating separation piston is installed between the cylinder tube and the inner sleeve in sealing mode and divides a cavity between the cylinder tube and the inner sleeve into a front outer air cavity and a back outer oil cavity, a front inner air cavity is communicated with the front outer air cavity through a damping air hole arranged on the front support seat, and the back outer oil cavity is communicated with a back inner oil cavity through a damping oil hole on the valve body and an oil hole on the abrasion resistant sleeve. The lifting air spring of the rigidity locking seat has the advantages of being simple in structure, strong in generality and reliable in locking.
Description
Technical field
The utility model relates to a kind of rigid locking seat up-down air spring, belongs to seat up-down air spring technical field.
Background technique
Being used to control the air spring that seat goes up and down mainly is made up of the piston in cylinder barrel, the cylinder barrel, piston rod and valve rod etc.; Contain gas and fluid in the cylinder barrel; Because piston has been occupied the volume in the cylinder barrel; Piston rod is pressed in the cylinder barrel during work, and piston is made axial motion extruding fluid in cylinder barrel, and the fluid pressurized gas makes piston reach the working position; After the external force disappearance that is carried on the piston rod, then gas restores and expands, and the gas of expansion promotes fluid and makes piston reset, and piston rod is shifted out, and makes air spring realize compression movement and recovery damped motion.And present disclosed rigid locking seat up-down air spring, main structure is to utilize valve rod to move axially, and opens or closes oil duct fast; The pistons work position is locked; But because gas has compressibility, therefore after the air spring locking, because the unstability of gas; Cause seat up-down air spring locking poor rigidity, make the seat position of adjusting inaccurate.
Summary of the invention
It is a kind of simple in structure that the purpose of the utility model provides, and highly versatile locks reliable rigid locking seat up-down air spring.
The utility model is that the technological scheme that achieves the above object is: a kind of rigid locking seat up-down air spring; Comprise cylinder barrel, piston rod, valve body and spool; Guide sleeve and pilot seal snare are contained on the piston rod and are installed in the cylinder barrel; One end of piston rod passes cylinder barrel, the other end has piston, it is characterized in that: inner sleeve has the damping pore through two ends preceding bearing is fixed in the cylinder barrel with the valve body with damping oilhole, and piston seal is arranged in the inner sleeve and with inner sleeve and is divided into oil pocket in preceding interior air cavity and the back; Described valve body and cylinder barrel and inner sleeve are tightly connected; And spool is installed on the valve body through wear-resistant sleeve, and wear-resistant sleeve is provided with oilhole, and it is corresponding with starting bar that the valve gap of spool front end is corresponding with valve seat on the valve body, valve body is stretched out in the spool rear end; Starting bar is installed in the cylinder barrel rear portion through rear support; Unsteady separator piston sealing is installed between cylinder barrel and the inner sleeve and with the cavity between cylinder barrel and the inner sleeve and is divided into preceding outer air cavity and back outer oil cavity, and preceding interior air cavity communicates with preceding outer air cavity through the damping pore on the preceding bearing, and back outer oil cavity communicates with the interior oil pocket in back through damping oilhole on the valve body and the oilhole on the wear-resistant sleeve.
This practical seat up-down air spring adopts cylinder barrel and inner sleeve; Its inner sleeve is fixed in the cylinder barrel through the preceding bearing of front end and the valve seat of rear end; Therefore can inner sleeve be divided into oil pocket in independently preceding mutually interior air cavity and the back through the piston of piston rod rear end; Through the unsteady separator piston that is installed between cylinder barrel and the inner sleeve cavity between cylinder barrel and the inner sleeve is divided into independently preceding outer air cavity and back outer oil cavity simultaneously; Because air cavity communicates with preceding outer air cavity through the damping pore on the preceding bearing in preceding, simultaneously the back outer oil cavity through the damping oilhole on the valve body and the oilhole on the wear-resistant sleeve with after interior oil pocket communicate, so can with two independently oil pocket and two independently air cavity along setting rationally between inner sleeve and the cylinder barrel; Can effectively dwindle up-down air spring axial dimension, and the volume of the air spring that reduces to go up and down.The utility model promotes the spool action through the starting bar that is arranged on the cylinder barrel rear portion; After spool is activated bar and pushes open; Apply the external force post-tensioning and go out piston rod seat is risen, preceding in gas in the air cavity separator piston that promotes to float in the outer air cavity before getting into through the damping hole on the preceding bearing move backward, fluid in the outer oil cavity of back is got into through the damping oilhole on the valve body after in the interior oil pocket; After piston rod moves to desired location; As long as depress piston rod, make piston rod promote fluid and spool is moved rapidly backward and close oil duct, because the fluid incompressibility in the fluid in the oil pocket and the back outer oil cavity in the back; Lock rigidity preferably and the seat air spring is had, make the seat after the adjusting can keep accurate position.The utility model is simple in structure, highly versatile, and locking is reliable.
Description of drawings
Below in conjunction with accompanying drawing the embodiment of the utility model is made further detailed description.
Fig. 1 is the structural representation of the utility model.
1-piston rod wherein, 2-guide sleeve, 3-pilot seal circle, 4-preceding bearing, 4-1-damping pore, 5-cylinder barrel; 6-inner sleeve, the 7-separator piston that floats, 8-piston, 9-valve seat, 10-valve body, 10-1-damping oilhole; 11-spool, 12-rear support, 13-starting bar, 14-seal ring, 15-wear-resistant sleeve; 15-1-oilhole, oil pocket in 16-back, 17-back outer oil cavity, 18-preceding interior air cavity, 19-preceding outer air cavity.
Embodiment
See shown in Figure 1; The rigid locking seat up-down air spring of the utility model; Comprise cylinder barrel 5, piston rod 1, valve body 10 and spool 11, guide sleeve 2 is sleeved on the piston rod 1 with pilot seal circle 3 and is installed in the cylinder barrel 5, and an end of piston rod 1 passes cylinder barrel 5, the other end has piston 8; Inner sleeve 6 is fixed in the cylinder barrel 5 with the valve body 10 with damping oilhole 10-1 through the preceding bearing with damping pore 4-1 4 at two ends; Piston 8 sealings are arranged in the inner sleeve 6, and the piston 8 of the utility model can be processed integrative-structure with piston rod 1, and perhaps the rear portion of piston rod 1 has concave ring groove; Piston 8 is installed in the concave ring groove of piston rod 1; Piston 8 joins through seal ring 14 and inner sleeve 6 and realizes sealing, interior air cavity 18 and the interior oil pocket 16 in back before through piston 8 inner sleeve 6 being divided into, and interior air cavity 18 is filled with pressed gas and fluid respectively with the interior oil pocket 16 in back before it.See shown in Figure 1ly, bearing 4 has the T oblique crank Z cover of groove for front end before the utility model, before the front portion of inner sleeve 6 is sleeved on the axle sleeve of bearing 4; And the T shape end face of bearing 4 before withstanding on; And preceding bearing 4 is fixedly connected with cylinder barrel 5 roll extrusion, and preceding bearing 4 can be connected through fastening piece with inner sleeve 6, perhaps preceding bearing 4 and inner sleeve 6 welding; Damping pore 4-1 on the preceding bearing 4 can all be laid in 2 ~ 5 along preceding bearing 4; Gases in the preceding interior air cavity 18 get in the groove of preceding bearing 4 through the gap between preceding bearing 4 and the piston rod 1, and get into preceding outer air cavity 19 again through the damping pore 4-1 on it, to realize the up-down of piston rod 1.
See shown in Figure 1ly, the utility model valve body 10 is tightly connected with cylinder barrel 5 and inner sleeve 6, and this valve body 10 is stepped shape; Valve body 10 is respectively through seal ring 14 and inner sleeve 6 and cylinder barrel 5 sealings, and the damping oilhole 10-1 on the valve body 10 can be provided with 1～3 along valve body 10, and the utility model spool 11 is installed in the valve body 10 through wear-resistant sleeve 15; This wear-resistant sleeve 15 also can play leading role to spool 11, and wear-resistant sleeve 15 is provided with oilhole 15-1, and this wear-resistant sleeve 15 is installed in the mounting hole of valve body 10; Wear-resistant sleeve 15 two ends join with the seal ring of installing in the valve body 10 14, and valve seat 9 joins with the seal ring 14 of front end, to realize better seal; The periphery of wear-resistant sleeve 15 is provided with oil groove; It is corresponding with starting bar 13 that valve seat in damping oilhole 10-1 on the valve body 10 and the oilhole 15-1 on the wear-resistant sleeve 15 setting that interlaces, the valve gap of spool 11 front ends and valve body 10 is 9 corresponding, valve body 10 is stretched out in the spool rear end, and valve seat 9 is installed on the valve body 10; This valve seat 9 can adopt pad; Or the valve seat of the utility model 9 processes integrative-structure with valve body 10, and this starting bar 13 is installed in cylinder barrel 5 rear portions through rear support 12, controls opening of spool 11 through the external force that is applied on the starting bar 13; After spool 11 is opened; But operated piston bar 1 moves and carries out the adjusting of height of seat, and the fluid in the back outer oil cavity 17 get in the interior oil pocket 16 in back through the gap that damping oilhole 10-1 on the valve body 10 and the oilhole 15-1 on the wear-resistant sleeve 15 get between spool 11 and the wear-resistant sleeve 15, and piston rod 1 is locked.
See shown in Figure 1; Unsteady separator piston 7 sealings of the utility model are installed between cylinder barrel 5 and the inner sleeve 6; On the inside and outside circle of unsteady separator piston 7 seal groove is set respectively; The seal ring 14 that is installed in the seal groove joins with cylinder barrel 5 and inner sleeve 6 sealings respectively; The separator piston 7 that floats is divided into preceding outer air cavity 19 and back outer oil cavity 17 with the cavity between cylinder barrel 5 and the inner sleeve 6, and preceding interior air cavity 18 communicates with preceding outer air cavity 19 through the damping pore 4-1 on the preceding bearing 4, and back outer oil cavity 17 communicates with the interior oil pocket 16 in back through damping oilhole 10-1 on the valve body 10 and the oilhole 15-1 on the wear-resistant sleeve 15.
See shown in Figure 1; During the utility model work; Be filled with gas and fluid respectively in the oil pocket 16 in preceding interior air cavity 18 in its inner sleeve 6 and the back; And inner sleeve 6 is filled with gas and fluid with the preceding outer air cavity 19 that cylinder barrel 5 is positioned at separator piston 7 both sides of floating respectively with back outer oil cavity 17, opens when starting bar 13 operation spools 11, makes the end face of the valve gap disengagement valve seat 9 on the spool 11; Interior oil pocket 16 in back and back outer oil cavity 17 are communicated; Rise through the moving seat that makes of external force pulling piston rod 1 axial advancement, preceding in gases in the air cavity 18 separator pistons 7 that promote to float in the outer air cavity 19 before getting into through the damping pore 4-1 on the preceding bearing 4 move backward, make fluid in the back outer oil cavity 17 through the entering of the damping oilhole 10-1 on the valve body 10 after in the interior oil pocket 16; After seat adjustment puts in place; Press down piston rod 1 and promote spool 11 through fluid and join with valve seat 9 and close oil duct,, and reach the effect of rigid locking because fluid in the back outer oil cavity 17 of the fluid of oil pocket 16 and unsteady separator piston 7 one sides is incompressible in piston 8 one sides back.
Claims (5)
1. rigid locking seat up-down air spring; Comprise cylinder barrel (5), piston rod (1), valve body (10) and spool (11); Guide sleeve (2) and pilot seal circle (3) are sleeved on piston rod (1) and go up and be installed in the cylinder barrel (5); One end of piston rod (1) passes cylinder barrel (5), the other end has piston (8); It is characterized in that: the valve body (10) that inner sleeve (6) has the preceding bearing (4) of damping pore (4-1) through two ends and has damping oilhole (10-1) is fixed in the cylinder barrel (5), piston (8) sealing be arranged in the inner sleeve (6) and inner sleeve (6) is divided into before in air cavity (18) and the interior oil pocket (16) in back; Described valve body (10) is tightly connected with cylinder barrel (5) and inner sleeve (6); And spool (11) is installed on the valve body (10) through wear-resistant sleeve (15); Wear-resistant sleeve (15) is provided with oilhole (15-1); It is corresponding with starting bar (13) that the valve gap of spool (11) front end is corresponding with valve seat (9) on the valve body (10), valve body (10) is stretched out in spool (11) rear end; Starting bar (13) is installed in cylinder barrel (5) rear portion through rear support (12); Separator piston (7) sealing of floating is installed between cylinder barrel (5) and the inner sleeve (6) and with the cavity between cylinder barrel (5) and the inner sleeve (6) and is divided into preceding outer air cavity (19) and back outer oil cavity (17); Air cavity (18) communicates with preceding outer air cavity (19) through the damping pore (4-1) on the preceding bearing (4) in preceding, and back outer oil cavity (17) communicates with the interior oil pocket (16) in back through damping oilhole (10-1) on the valve body (10) and the oilhole (15-1) on the wear-resistant sleeve (15).
2. rigid locking seat up-down air spring according to claim 1; It is characterized in that: bearing (4) has the T oblique crank Z cover of groove before described for front end; The front portion of inner sleeve (6) is sleeved on the axle sleeve of preceding bearing (4); And withstand on the T shape end face of preceding bearing (4), and preceding bearing (4) is fixedly connected with cylinder barrel (5) roll extrusion.
3. rigid locking seat up-down air spring according to claim 1; It is characterized in that: the rear side of said piston rod (1) has concave ring groove; Piston (8) is installed in the concave ring groove of piston rod (1), and piston (8) joins through seal ring (14) and inner sleeve (6).
4. rigid locking seat up-down air spring according to claim 1; It is characterized in that: on the inside and outside circle of described unsteady separator piston (7) seal groove is set respectively, the seal ring (14) that is installed in the seal groove joins with cylinder barrel (5) and inner sleeve (6) sealing respectively.
5. rigid locking seat up-down air spring according to claim 1; It is characterized in that: described valve body (10) is stepped shape; Valve body (10) seals with inner sleeve (6) and cylinder barrel (5) respectively through seal ring (14); Valve seat (9) is installed on the valve body (10), and wear-resistant sleeve (15) two ends join with the seal ring of installing in the valve body (10) (14), and the seal ring (14) of valve seat (9) and front end joins; The periphery of wear-resistant sleeve (15) is provided with oil groove, the setting that interlaces of the oilhole (15-1) on the damping oilhole (10-1) on the valve body (10) and the wear-resistant sleeve (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205103862U CN202402546U (en) | 2011-12-09 | 2011-12-09 | Lifting air spring of rigidity locking seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205103862U CN202402546U (en) | 2011-12-09 | 2011-12-09 | Lifting air spring of rigidity locking seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202402546U true CN202402546U (en) | 2012-08-29 |
Family
ID=46700195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205103862U Expired - Lifetime CN202402546U (en) | 2011-12-09 | 2011-12-09 | Lifting air spring of rigidity locking seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202402546U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106352004A (en) * | 2016-10-20 | 2017-01-25 | 安徽莱特气弹簧有限公司 | Rigid locking pneumatic rod |
| CN106726325A (en) * | 2017-03-07 | 2017-05-31 | 马延军 | The lift surgical anaesthesia headstock |
| CN107237852A (en) * | 2017-08-08 | 2017-10-10 | 浙江中兴减震器制造有限公司 | A kind of damper |
| CN107246451A (en) * | 2017-06-08 | 2017-10-13 | 常州市莱特气弹簧有限公司 | Pressure adjustable gas spring |
| CN107339358A (en) * | 2017-08-11 | 2017-11-10 | 岳彩立 | A kind of pressure difference is less to lock gas spring |
| DE202017107098U1 (en) | 2017-06-08 | 2017-12-06 | Changzhou Lant Gas Spring Co.,Ltd | Pressure adjustable gas spring |
| DE202017107097U1 (en) | 2017-06-08 | 2017-12-15 | Changzhou Lant Gas Spring Co.,Ltd | Rigid double lift gas spring |
| WO2018072188A1 (en) * | 2016-10-20 | 2018-04-26 | 安徽莱特气弹簧有限公司 | Rigid locking pneumatic rod |
| 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 |
| CN114893526A (en) * | 2022-05-31 | 2022-08-12 | 南京理工大学 | Vehicle seat suspension damper for coping with impact |
| CN114962513A (en) * | 2022-06-28 | 2022-08-30 | 中车制动系统有限公司 | Damping adjustable gas-liquid buffer |
-
2011
- 2011-12-09 CN CN2011205103862U patent/CN202402546U/en not_active Expired - Lifetime
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106352004A (en) * | 2016-10-20 | 2017-01-25 | 安徽莱特气弹簧有限公司 | Rigid locking pneumatic rod |
| WO2018072188A1 (en) * | 2016-10-20 | 2018-04-26 | 安徽莱特气弹簧有限公司 | Rigid locking pneumatic rod |
| CN106352004B (en) * | 2016-10-20 | 2018-11-16 | 安徽莱特气弹簧有限公司 | Rigid locking air pressure rod |
| CN106726325A (en) * | 2017-03-07 | 2017-05-31 | 马延军 | The lift surgical anaesthesia headstock |
| US10393205B2 (en) | 2017-06-08 | 2019-08-27 | ChangZhou Lant Gas Spring Co., Ltd. | Double-lift rigid gas spring |
| CN107246451B (en) * | 2017-06-08 | 2022-11-25 | 常州市莱特气弹簧有限公司 | Pressure adjustable gas spring |
| CN107246451A (en) * | 2017-06-08 | 2017-10-13 | 常州市莱特气弹簧有限公司 | Pressure adjustable gas spring |
| DE202017107098U1 (en) | 2017-06-08 | 2017-12-06 | Changzhou Lant Gas Spring Co.,Ltd | Pressure adjustable gas spring |
| DE202017107097U1 (en) | 2017-06-08 | 2017-12-15 | Changzhou Lant Gas Spring Co.,Ltd | Rigid double lift gas spring |
| US10288141B2 (en) | 2017-06-08 | 2019-05-14 | ChangZhou Lant Gas Spring Co., Ltd. | Pressure-adjustable gas spring |
| CN107237852B (en) * | 2017-08-08 | 2022-07-12 | 台州九桔科技股份有限公司 | Shock absorber |
| CN107237852A (en) * | 2017-08-08 | 2017-10-10 | 浙江中兴减震器制造有限公司 | A kind of damper |
| CN107339358A (en) * | 2017-08-11 | 2017-11-10 | 岳彩立 | A kind of pressure difference is less to lock gas spring |
| 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 |
| CN114893526A (en) * | 2022-05-31 | 2022-08-12 | 南京理工大学 | Vehicle seat suspension damper for coping with impact |
| CN114893526B (en) * | 2022-05-31 | 2023-09-12 | 南京理工大学 | Vehicle seat suspension damper for coping with impact |
| CN114962513A (en) * | 2022-06-28 | 2022-08-30 | 中车制动系统有限公司 | Damping adjustable gas-liquid buffer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202402546U (en) | Lifting air spring of rigidity locking seat | |
| CN201606440U (en) | Gas spring capable of rigidly locking | |
| CN104564908A (en) | Buffer hydraulic cylinder | |
| CN205298375U (en) | Gas spring damping bumper shock absorber | |
| WO2006112942A3 (en) | Gas spring and method of manufacture | |
| CN103016447A (en) | Constant-pressure and constant-force hydraulic servo cylinder with single outlet rod | |
| JP2016540165A (en) | Forklift, hydraulic cylinder assembly and hydraulic device thereof | |
| CN201671913U (en) | Actuator cylinder with built-in claw lock device | |
| CN201916410U (en) | Lockable-casing gas spring | |
| CN104196819A (en) | Double-purpose through hole type four-level oil cylinder | |
| CN203756848U (en) | Instant-opening lockable air spring | |
| CN103851028B (en) | Large-scale blast wave simulator buffering recuperator means | |
| CN203308998U (en) | Pull-type controllable gas spring | |
| CN102424042A (en) | Air booster pump structure | |
| CN202971410U (en) | Double-stroke cylinder | |
| CN204419758U (en) | A kind of buffering hydraulic cylinder | |
| CN201078429Y (en) | Return type lockable gas spring | |
| CN203067402U (en) | Uniform-pressure and uniform-force single piston rod hydraulic servo oil cylinder | |
| CN201103307Y (en) | Fluid buffer for furniture | |
| CN206429479U (en) | A kind of magnetic coupling formula Rodless cylinder | |
| CN200940616Y (en) | Plunger hydraulic oil cylinder of braker | |
| CN203509781U (en) | Compensating device for numerically controlled landing boring and milling center ram dead load deformation | |
| KR101243834B1 (en) | Brake Actuator Unit | |
| CN104019077A (en) | Oil cylinder with front lug and rear lug | |
| JP5268541B2 (en) | Front fork |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120829 |
|
| CX01 | Expiry of patent term |