CN201318410Y - Air spring - Google Patents
Air spring Download PDFInfo
- Publication number
- CN201318410Y CN201318410Y CNU200820070986XU CN200820070986U CN201318410Y CN 201318410 Y CN201318410 Y CN 201318410Y CN U200820070986X U CNU200820070986X U CN U200820070986XU CN 200820070986 U CN200820070986 U CN 200820070986U CN 201318410 Y CN201318410 Y CN 201318410Y
- Authority
- CN
- China
- Prior art keywords
- air spring
- sleeve
- piston rod
- screw
- turning joint
- 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 - Fee Related
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Abstract
The utility model discloses an air spring including a sleeve cylinder and a piston rod inserted together, wherein, a movable joint is connected with at least one of the piston and the piston rod. The utility model is characterized in that the sleeve cylinder and/or the piston rod can be connected with the movable joint through a screw-thread screwing structure with adjustable length; and a positioning and locking device is arranged on a screw-thread screwing piece forming the screw-thread screwing structure. The air spring adopts the screw-thread screwing structure with the adjustable length arranged between the movable joint and the air spring part correspond with the movable joint, so as to enable the space between the movable joint and the air spring part to be adjustable compared with the fixed space of a previous gas spring; and meanwhile, the utility model adopts the locking device to control the retractable length of the screw thread screwing piece, thereby enabling the length of the air spring to be adjustable in a large range, and completely changing the deficiency that the air spring has a fixed length so as to enable the installation of the air spring to meet the requirements of normal production errors, and have more convenience, and low cost.
Description
Technical field
The utility model relates to the air spring technical field.
Background technique
In every profession and trades such as automobile, medical treatment, furniture, the use of air spring is very extensive, wherein especially extensive with automotive field, air spring generally includes piston rod and the sleeve that plugs together together, piston rod is provided with piston, be provided with Sealing, lubricated part, guiding element, bounding means in the sleeve, all be connected with turning joint on piston rod and the sleeve outer end, pour the pressurized gas of certain pressure in the airtight sleeve, because of the piston rod area effect, cause piston two sides area difference, area difference is the piston rod area, under identical pressure situation, produce quantitative pressure.In the structure of existing air spring, bulb joint or U type joint are generally selected in turning joint for use, turning joint and sleeve, the Placement of piston rod is generally welding, riveted joint or sealing are spirally connected, the regulated quantity that does not adapt to the production error, its linkage structure such as Fig. 1, shown in Figure 2,1 is sleeve, 2 is the bulb joint, bulb joint 2 among Fig. 1 welds together with sleeve 1, bulb joint 2 among Fig. 2 and sleeve 1 are by being threaded togather, Fig. 1, what Fig. 2 showed is the connecting means of air spring socket end, and the Placement of its tailpiece of the piston rod and turning joint and the Placement of socket end are basic identical; Because the distance that the Placement that adopts all can not be regulated turning joint and air spring parts, therefore the length range of air spring is fixed, like this when air spring is installed, the machining error that adapts to air spring or other connected elements with regard to the spring support that needs the employing adjustable positions, and installation process is bothered, the seat structure complexity, it is bigger that cost of labor is installed, the turning joint of air spring socket end as shown in Figure 3 and the attachment portion of hatch door, turning joint is connected by bolt and spring support 3, it is corresponding with two bolts hole 7 on the hatch door that spring support 3 is regulated slotted holes 6 by two on it, in addition also need be between spring support 3 and hatch door fixing parallels 4, parallels 4 needs rivet 5 to be fixed on the hatch door, the fixed position of spring support 3 can be regulated by the relative position of bolt fixing in adjusting slotted hole 6 on it and two bolts hole 7, but this regulating method is directly perceived inadequately, also needing to load onto air spring and all connected elements compares, therefore the adjustment process trouble is installed, in addition in order to realize the adjustable positions of spring support, the structure of itself structure and bearing all needs special design, also need to increase the annex that matches in addition, therefore the complex structure of spring support has improved manufacture cost.
The model utility content
The air spring that provides a kind of length to regulate on a large scale is provided the purpose of this utility model.
The technical solution of the utility model is: a kind of air spring, comprise plug-in sleeve and piston rod, be connected with turning joint in sleeve and the piston rod at least one, described sleeve and/or piston rod are to link together by spin structure and the turning joint of length-adjustable screw thread, and spin and be provided with positioning and locking device on the part forming the spin screw thread of structure of screw thread.
The described screw thread structure that spins is to be made of screw rod and the tapped hole that is mated, a pair of screw rod and tapped hole be relatively arranged in the turning joint with this turning joint on the corresponding air spring parts that are connected, described locking device is the adjusting nut of spinning on screw rod.
Described screw rod is fixed or axial limiting is connected in the turning joint, and described tapped hole is to be opened on sleeve and/or the piston rod or by the threaded sleeve that is fixed on sleeve and/or the piston rod to form.
Described turning joint is bulb joint or U type joint.
Described air spring is provided with and can partly or entirely blocks the spin ornamental piece of structure of screw thread.
Described ornamental piece is set on sleeve and/or piston rod and the end face that turning joint links to each other.
Air spring of the present utility model turning joint with its be provided with the length-adjustable screw thread structure that spins between the air spring parts of corresponding connection, make the spacing between the gentle spring members of turning joint become adjustable distance like this by the constant spacing of original air spring, and be provided with the spin collapsing length of part of locking device control screw thread, thereby realized the adjustable of air spring length on a large scale, thoroughly changed the fixing shortcoming of air spring length in the past, make air spring can satisfy general production error when mounted, easier for installation, installation cost is lower.The utility model can partly be provided with the screw thread structure that spins in the turning joint of air spring one or both ends when implementing, the screw thread structure that spins can be made of a pair of screw rod and tapped hole, and tapped hole can be to be opened on the air spring or to increase threaded sleeve on air spring to realize.
Description of drawings
Fig. 1 is the structural representation of a kind of Placement of existing air spring turning joint and socket end;
Fig. 2 is the structural representation of the another kind of Placement of existing air spring turning joint and socket end;
Fig. 3 is the linkage structure schematic representation of existing air spring and hatch door;
Fig. 4 is the structural representation of air spring of the present utility model;
Fig. 5 is the structural representation that air spring of the present utility model is connected with hatch door.
Embodiment
Air spring of the present utility model comprises piston rod and sleeve, its internal structure is identical with existing air spring, no longer describe in detail, innovation part of the present utility model is that at least one linkage structure with itself and turning joint in sleeve and the piston rod changes large-sized scope adjustable structure into herein.The structure of its middle sleeve 11 ends as shown in Figure 4, the outer end of sleeve 11 is provided with tapped hole, tapped hole in the present embodiment is to be opened in the sleeve ends, be fixed with the screw rod 13 that cooperates with tapped hole on the movable bulb joint 12, screw rod 13 screws in the tapped hole of sleeves 11 outer ends and be installed with adjusting nut 14 on screw rod 13, adjusting nut 14 rotatable roof pressures on the sleeve exterior edge face at tapped hole place with lock nut 13, unclamp adjusting nut 14 back screw rods 13 and can in tapped hole, rotate turnover to regulate the distance of movable bulb joint 12 and sleeve 11, thereby the length that can adjust the utility model air spring is to satisfy general production error, sleeve also is set with ornamental piece 15 on 11 ends, ornamental piece 15 is working of plastics or ebonite spare, when adjusting hatch door, ornamental piece 15 can move on to dotted line position earlier, again ornamental piece 15 is reset to solid line position after having adjusted adjusting nut 14 and screw rod 13.The tailpiece of the piston rod of the air spring the other end is identical with the structure of the linkage structure of turning joint and socket end, no longer describes herein.
Tapped hole in the foregoing description is to be opened in sleeve ends, can certainly increase by one section threaded sleeve at sleeve ends and form; The used turning joint of air spring is the bulb joint in the foregoing description, can certainly be the turning joint of U type joint or other type.
As shown in Figure 5, the structural representation that air spring of the present utility model is connected with hatch door, the movable bulb joint 12 of sleeve 11 ends of air spring is fixed on bearing 16 by bolt 17, and bearing 16 is welded on the hatch door 18.Because the spacing of air spring of the present utility model self adjustable bulb joint 12 and sleeve 11, so can save the adjustable structure on the bearing 16 of hatch door 18 and air spring, directly get final product by welding is fixing, compare with the linkage structure of hatch door with original spring support and can reduce cost of labor significantly, and adjusting work is simple.
Claims (6)
1, a kind of air spring, comprise plug-in sleeve and piston rod, be connected with turning joint in sleeve and the piston rod at least one, it is characterized in that: described sleeve and/or piston rod are to link together by spin structure and the turning joint of length-adjustable screw thread, and spin and be provided with positioning and locking device on the part forming the spin screw thread of structure of screw thread.
2, air spring according to claim 1, it is characterized in that: the described screw thread structure that spins is to be made of screw rod and the tapped hole that is mated, a pair of screw rod and tapped hole be relatively arranged in the turning joint with this turning joint on the corresponding air spring parts that are connected, described locking device is the adjusting nut of spinning on screw rod.
3, air spring according to claim 2, it is characterized in that: described screw rod is fixed or axial limiting is connected in the turning joint, and described tapped hole is to be opened on sleeve and/or the piston rod or by the threaded sleeve that is fixed on sleeve and/or the piston rod to form.
4, according to any described air spring in the claim 1～3, it is characterized in that: described turning joint is bulb joint or U type joint.
5, air spring according to claim 4 is characterized in that: described air spring is provided with and can partly or entirely blocks the spin ornamental piece of structure of screw thread.
6, air spring according to claim 5 is characterized in that: described ornamental piece is set on sleeve and/or piston rod and the end face that turning joint links to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820070986XU CN201318410Y (en) | 2008-06-12 | 2008-06-12 | Air spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820070986XU CN201318410Y (en) | 2008-06-12 | 2008-06-12 | Air spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201318410Y true CN201318410Y (en) | 2009-09-30 |
Family
ID=41197175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820070986XU Expired - Fee Related CN201318410Y (en) | 2008-06-12 | 2008-06-12 | Air spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201318410Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012171543A1 (en) * | 2011-06-11 | 2012-12-20 | Daimler Ag | Adjusting device, in particular for a vehicle seat |
| CN104370161A (en) * | 2014-11-11 | 2015-02-25 | 镇江耐丝新型材料有限公司 | Portal gas spring installing position adjusting device |
| CN108756575A (en) * | 2018-05-14 | 2018-11-06 | 浙江吉利控股集团有限公司 | It can regulating the qi flowing in the channels strut and automobile |
| CN111642928A (en) * | 2020-07-20 | 2020-09-11 | 安徽丰汇木业有限公司 | Multifunctional combined sofa |
-
2008
- 2008-06-12 CN CNU200820070986XU patent/CN201318410Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012171543A1 (en) * | 2011-06-11 | 2012-12-20 | Daimler Ag | Adjusting device, in particular for a vehicle seat |
| CN104370161A (en) * | 2014-11-11 | 2015-02-25 | 镇江耐丝新型材料有限公司 | Portal gas spring installing position adjusting device |
| CN108756575A (en) * | 2018-05-14 | 2018-11-06 | 浙江吉利控股集团有限公司 | It can regulating the qi flowing in the channels strut and automobile |
| CN111642928A (en) * | 2020-07-20 | 2020-09-11 | 安徽丰汇木业有限公司 | Multifunctional combined sofa |
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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: 20090930 Termination date: 20150612 |
|
| EXPY | Termination of patent right or utility model |