CN2909960Y - Double-reset pneumatic rod of chair - Google Patents
Double-reset pneumatic rod of chair Download PDFInfo
- Publication number
- CN2909960Y CN2909960Y CN 200620060506 CN200620060506U CN2909960Y CN 2909960 Y CN2909960 Y CN 2909960Y CN 200620060506 CN200620060506 CN 200620060506 CN 200620060506 U CN200620060506 U CN 200620060506U CN 2909960 Y CN2909960 Y CN 2909960Y
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- China
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- seal ring
- outer tube
- piston
- piston rod
- support bar
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Abstract
A double-reset pneumatic rod of chair comprises pneumatic parts with hoisting effect and catch parts with reset effect. The double-reset pneumatic rod is provided with a direction reset structure, which comprises a casing that is arranged inside the outer pipe, the casing cover is covered on the support rod; a upper ''Y'' shape seal ring and a lower ''Y'' shape seal ring are arranged on the inner side of the outer pipe, wherein the upper ''Y'' shape seal ring and the lower ''Y'' shape seal ring are respectively sleeved joint with the upper and the lower ends of the outer wall of the casing fixedly; the lower ''Y'' shape seal ring is pressure welded on the sleeve gasket, which is pressure welded on the catch; the inner wall of the outer pipe, the outer wall of the casing, the upper ''Y'' shape seal ring and the lower ''Y'' shape seal ring surround together to form a air chamber. The double-reset pneumatic rod is also provided with a high reset structure, which comprises an inner pipe and a piston rod which are arranged in the outer pipe in order, and a piston which is encased between the inner pipe and the piston rod. The utility mode connects the support rod and the piston rod into integration, and decreases the intermedial parts, thereby increasing the rigidity, and saving the production cost.
Description
Technical field
The utility model relates to a kind of seat air-leg, particularly a kind of seat dual reset air-leg that has lifting and rotation, direction and highly reset.
Background technology
Disclose a kind of seat with multi-functional pneumatic bar among the Chinese patent ZL01228551.X of my application, comprised air-leg assembly and have the cam release link assembly of reset response with lift action, described two assemblies be arranged on same simplified among; Following cam is fixed on the bottom of release link, and overhead cam is fixed on the external splines pipe, and the contact-making surface of cam is a cylinder helical plane up and down; Back-moving spring be arranged on cam above, and be arranged in the external splines pipe.The seat of this structure with multi-functional pneumatic bar structure relative complex, parts are many, cost of manufacture is high, overall dimensions is big, the assembling relatively the difficulty, performance is not ideal enough.
The utility model content
The purpose of this utility model be to provide a kind of simple and reasonable, assembling is simple and efficient, parts are few, overall dimensions is little, cost of manufacture is low, connect firm seat dual reset air-leg, to overcome weak point of the prior art.
A kind of seat dual reset air-leg by this purpose design, comprise Pneumatic assembly with lift action and cam pack with reset response, its architectural feature is that the dual reset air-leg is provided with the direction resetting-mechanism, this direction resetting-mechanism comprises the sleeve pipe that is arranged in the outer tube, casing pipe sleeve is located on the support bar, be arranged on the last y-type seal ring and the following y-type seal ring of outer tube inboard, last y-type seal ring and following y-type seal ring closely are socketed in the two ends up and down of sleeve outer wall respectively, following y-type seal ring is crimped on the spacer, spacer is crimped on the overhead cam, outer tube wall, sleeve outer wall, last y-type seal ring and following y-type seal ring surround air cavity jointly.
Also be provided with the height resetting-mechanism on the above-mentioned dual reset air-leg, this height resetting-mechanism comprises interior pipe and the piston rod that is successively set in the outer tube, be set in the pipe and piston rod between piston, piston will by the chamber that inner tube wall and piston rod outer wall form separate form about chamber; The piston outer rim is provided with in the circumferential seal groove seal groove and is provided with sealing ring, and sealing ring and inner tube wall crimping are provided with circumferential air channel below the seal groove, and air channel communicates with upper chamber by the passage that is arranged on the piston.
Above-mentioned piston rod and support bar fuse, and the piston rod cross section is a circular configuration, and the support bar cross section is non-round structure, as structures such as triangle, quadrangle, pentagon, hexagon, octagon, Long Circle or oval shapes; Overhead cam and support bar slip socket, following cam closely is connected with the outer tube bottom.
Above-mentioned direction resetting-mechanism and height resetting-mechanism are arranged in the same outer tube.
Above-mentioned outer tube top is provided with valve body, and valve body is provided with is convenient to the cylindrical hole that starting bar slides up and down.
Another kind of seat dual reset air-leg by this purpose design, comprise Pneumatic assembly with lift action and cam pack with reset response, its architectural feature is that the dual reset air-leg is provided with the direction resetting-mechanism, this direction resetting-mechanism comprises the back-moving spring that is arranged in the outer tube, back-moving spring is set on the support bar, back-moving spring joins with up-thrust bearing, lower thrust-bearing respectively at two ends up and down, and up-thrust bearing and fairlead join, and lower thrust-bearing and overhead cam join; Up-thrust bearing and lower thrust-bearing are set on the support bar.
Remainder is then identical with aforementioned part, no longer repeats.
The following cam of direction resetting-mechanism closely is connected with outer tube among the utility model first embodiment, and overhead cam and hexagonal support bar are slidingly matched, and its endoporus also is a hexgonal structure; Be respectively arranged with between outer tube and the support bar and be set in the sleeve pipe last y-type seal ring and the following y-type seal ring at two ends up and down, following y-type seal ring and spacer join, spacer and overhead cam join, and outer tube wall, sleeve outer wall, last y-type seal ring and following y-type seal ring surround air cavity jointly.When rotating when the seat pressurized, outer pipe racks down cam and is rotated, and forces two cams to rotate along its butt joint plane of rotation and staggers, and overhead cam moves up along support bar, and the gas in the compression air cavity, and at this moment, overhead cam can rest on the optional position.After the external force that seat is subjected to was eliminated, the gas free wxpansion in the air cavity forced overhead cam and following cam to relatively rotate, and last seat automatically resets.
The following cam of direction resetting-mechanism closely is connected with outer tube among the utility model second embodiment, overhead cam and following cam join with the bottom that is arranged on the hexagon support bar in the outer tube successively, support bar top is socketed with up-thrust bearing, the middle part is passed behind the spring and the lower thrust-bearing socket, and lower thrust-bearing and overhead cam join.When seat was stressed, outer pipe racks down cam and is rotated, and forces two cams to stagger, and overhead cam upwards slides along support bar, and then the compression spring, and this moment, overhead cam can rest on the optional position.After the external force that seat is subjected to was eliminated, spring automatically reset, and forced overhead cam and following cam to relatively rotate, and last seat automatically resets.
This height resetting-mechanism in the utility model comprises interior pipe and the piston rod that is successively set in the outer tube, the piston in being set between pipe and the piston rod, piston will by the chamber that inner tube wall and piston rod outer wall form separate form about chamber; The piston outer rim is provided with in the circumferential seal groove seal groove and is provided with sealing ring, and sealing ring and inner tube wall crimping are provided with circumferential air channel below the seal groove, and air channel communicates with upper chamber by the passage that is arranged on the piston.
When the seat pressurized moved down, support bar and the piston that is socketed on the piston rod were motionless, managed the sealing ring that reaches with interior pipe crimping in outer tube drives and moved down; Before outer tube moved down, chamber communicated up and down, and when sealing ring moves down into when blocking air channel, chamber is separated and comes up and down, and when the gas in the upper chamber was compressed to a certain degree, outer tube no longer continued to move down, and at this moment, seat stops to move down; When the people left seat, the gas in the upper chamber expanded automatically, and interior pipe, sealing ring and outer tube are upwards pushed up, and seat automatically resets, and chamber is replied connected state up and down.
Piston rod and support bar fuse in the utility model, have reduced middle parts, have strengthened rigidity, have saved cost of manufacture.
The utility model has been done bigger improvement to valve body, has reduced the number of accessory, has saved a large amount of spaces, has simplified assembly technology, has optimized structure.
The utility model is simple and reasonable, assembling is simple and efficient, parts are few, overall dimensions is little, cost of manufacture is low, connection is firm.
Description of drawings
Fig. 1 is the utility model first embodiment sectional structure schematic diagram.
Fig. 2 is an A place structure for amplifying schematic diagram among Fig. 1.
Fig. 3 is a valve body cross section structure schematic diagram.
Fig. 4 is the utility model second embodiment sectional structure schematic diagram.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described.
Among the figure, 1 is starting bar, and 2 is outer tube, and 3 is pad, and 4 is valve body, 5,6 and 8 is the O RunddichtringO, and 7 is needle, and 9 is piston, and 10 are upright tube, 11 is interior pipe, and 12 are the ventilation bearing, and 13,16 and 17 is y-type seal ring, and 14 is fairlead, 15 are cover letter, and 18 be spacer, and 19 be overhead cam, 20 be under cam, 21 is pin, and 22 is cushion pad, and 23 are split pin, and 24 is piston rod, 25 is support bar, and 36 is up-thrust bearing, and 37 is spring, and 38 is lower thrust-bearing.
Referring to Fig. 1-Fig. 3, this seat dual reset air-leg, comprise Pneumatic assembly with lift action and cam pack with reset response, cam pack comprises the overhead cam 19 and following cam 20 with butt joint plane of rotation, the dual reset air-leg is provided with direction resetting-mechanism and height resetting-mechanism, this direction resetting-mechanism and height resetting-mechanism are arranged in the outer tube 2, and outer tube 2 is inserted in the upright tube 10.Outer tube 2 tops are provided with valve body 4, and valve body 4 is provided with is convenient to the cylindrical hole that starting bar 1 slides up and down; Be provided with cushion pad 22 between outer tube 2 bottoms and the upright letter 10.
The height resetting-mechanism comprises interior pipe 11 and the piston rod 24 that is successively set in the outer tube 2, the piston 9 in being set between pipe 11 and the piston rod 24, piston 9 will by the chamber that interior pipe 11 inwalls and piston rod 24 outer walls form separate form about chamber; Piston 9 outer rims are provided with circumferential seal groove 9.1, be provided with sealing ring 8 in the seal groove 9.1, be provided with circumferential air channel 9.3 below the sealing ring 8 and interior pipe 11 inwall crimping, seal groove 9.1, air channel 9.3 communicates with upper chamber by the passage 9.2 that is arranged on the piston 9, sees Fig. 1 and Fig. 2.
The direction resetting-mechanism comprises the sleeve pipe 15 that is arranged in the outer tube 2, sleeve pipe 15 is set on the support bar 25, be arranged on the last y-type seal ring 16 and the following y-type seal ring 17 of outer tube 2 inboards, last y-type seal ring 16 and following y-type seal ring 17 closely are socketed in the two ends up and down of sleeve pipe 15 outer walls respectively, following y-type seal ring 17 is crimped on the spacer 18, spacer 18 is crimped on the overhead cam 19, and outer tube 2 inwalls, sleeve pipe 15 outer walls, last y-type seal ring 16 and following y-type seal ring 17 surround air cavity jointly.Sleeve pipe 15 is the T font structure, last y-type seal ring 16 and sleeve pipe 15 crimping; Be provided with the interval of allowing that sleeve pipe 15 lower ends free in and out between spacer 18 and the support bar 25.
Wherein, piston rod 24 and support bar 25 fuse, and piston rod 24 cross sections are circular configuration, and support bar 25 cross sections are non-circular shape, as triangle, quadrangle, pentagon, hexagon, octagon, Long Circle or oval shape structure, the support bar in the present embodiment partly adopts hexgonal structure.Overhead cam 19 and support bar 25 slip sockets, following cam 20 closely is connected with outer tube 2 bottoms, and following cam is provided with the circular hole of allowing that support bar 25 rotates.Outer tube 2 tops are provided with valve body 4, and valve body 4 is provided with is convenient to the cylindrical hole 4.1 that starting bar 1 slides up and down, and sees Fig. 3.
Referring to Fig. 3, direction resetting-mechanism among the utility model second embodiment comprises the back-moving spring 37 that is arranged in the outer tube 2, back-moving spring 37 is set on the support bar 25, back-moving spring joins with up-thrust bearing 36, lower thrust-bearing 38 respectively at two ends about in the of 37, up-thrust bearing 36 joins with fairlead 14, and lower thrust-bearing 38 joins with overhead cam 19; Up-thrust bearing 36 and lower thrust-bearing 38 are set on the support bar 25.
All the other do not state part as hereinbefore, no longer repeat.
Claims (10)
1. seat dual reset air-leg, comprise Pneumatic assembly with lift action and cam pack with reset response, it is characterized in that described dual reset air-leg is provided with the direction resetting-mechanism, this direction resetting-mechanism comprises the sleeve pipe (15) that is arranged in the outer tube (2), casing pipe sleeve is located on the support bar (25), be arranged on the last y-type seal ring (16) and the following y-type seal ring (17) of outer tube inboard, last y-type seal ring and following y-type seal ring closely are socketed in the two ends up and down of sleeve outer wall respectively, following y-type seal ring is crimped on the spacer (18), spacer is crimped on the overhead cam (19), outer tube wall, sleeve outer wall, last y-type seal ring and following y-type seal ring surround air cavity jointly.
2. seat dual reset air-leg according to claim 1 is characterized in that described sleeve pipe (15) is the T font structure, last y-type seal ring (16) and sleeve pipe crimping; Be provided with the interval of allowing that the sleeve pipe lower end frees in and out between spacer (18) and the support bar.
3. seat dual reset air-leg according to claim 1, it is characterized in that also being provided with on the described dual reset air-leg height resetting-mechanism, this height resetting-mechanism comprises interior pipe (11) and the piston rod (24) that is successively set in the outer tube (2), be set in the pipe and piston rod between piston (9), piston will by the chamber that inner tube wall and piston rod outer wall form separate form about chamber; The piston outer rim is provided with in circumferential seal groove (9.1) seal groove and is provided with sealing ring (8), sealing ring and inner tube wall crimping, be provided with circumferential air channel (9.3) below the seal groove, air channel communicates with upper chamber by the passage (9.2) that is arranged on the piston.
4. seat dual reset air-leg according to claim 3, it is characterized in that described piston rod (24) and support bar (25) fuse, the piston rod cross section is a circular configuration, and the support bar cross section is a non-circular shape: triangle, quadrangle, pentagon, hexagon, octagon, Long Circle or oval shape structure; Overhead cam (19) and support bar (25) slip socket, following cam (20) closely is connected with outer tube (2) bottom.
5. seat dual reset air-leg according to claim 3 is characterized in that described direction resetting-mechanism and height resetting-mechanism are arranged in the same outer tube (2).
6. seat dual reset air-leg according to claim 1 is characterized in that described outer tube (2) top is provided with valve body (4), and valve body is provided with is convenient to the cylindrical hole (4.1) that starting bar (1) slides up and down.
7. seat dual reset air-leg, comprise Pneumatic assembly with lift action and cam pack with reset response, it is characterized in that described dual reset air-leg is provided with the direction resetting-mechanism, this direction resetting-mechanism comprises the back-moving spring (37) that is arranged in the outer tube (2), back-moving spring (37) is set on the support bar (25), back-moving spring joins with up-thrust bearing (36), lower thrust-bearing (38) respectively at two ends up and down, up-thrust bearing and fairlead (14) join, and lower thrust-bearing and overhead cam (19) join; Up-thrust bearing and lower thrust-bearing are set on the support bar (25).
8. seat dual reset air-leg according to claim 7, it is characterized in that also being provided with on the described dual reset air-leg height resetting-mechanism, this height resetting-mechanism comprises interior pipe (11) and the piston rod (24) that is successively set in the outer tube (2), be set in the pipe and piston rod between piston (9), piston will by the chamber that inner tube wall and piston rod outer wall form separate form about chamber; The piston outer rim is provided with in circumferential seal groove (9.1) seal groove and is provided with sealing ring (8), sealing ring and inner tube wall crimping, be provided with circumferential air channel (9.3) below the seal groove, air channel communicates with upper chamber by the passage (9.2) that is arranged on the piston; Direction resetting-mechanism and height resetting-mechanism are arranged in the same outer tube (2).
9. seat dual reset air-leg according to claim 8, it is characterized in that described piston rod (24) and support bar (25) fuse, the piston rod cross section is a circular configuration, and the support bar cross section is triangle, quadrangle, pentagon, hexagon, octagon, Long Circle or oval shape structure; Overhead cam (19) and support bar (25) slip socket, following cam (20) closely is connected with outer tube (2) bottom.
10. seat dual reset air-leg according to claim 7 is characterized in that described outer tube (2) top is provided with valve body (4), and valve body is provided with is convenient to the cylindrical hole (4.1) that starting bar (1) slides up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620060506 CN2909960Y (en) | 2006-06-14 | 2006-06-14 | Double-reset pneumatic rod of chair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620060506 CN2909960Y (en) | 2006-06-14 | 2006-06-14 | Double-reset pneumatic rod of chair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2909960Y true CN2909960Y (en) | 2007-06-13 |
Family
ID=38131824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620060506 Expired - Fee Related CN2909960Y (en) | 2006-06-14 | 2006-06-14 | Double-reset pneumatic rod of chair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2909960Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104687821A (en) * | 2015-03-18 | 2015-06-10 | 常州市莱特气弹簧有限公司 | Automatic whirling and raising air pressure rod |
| CN109198966A (en) * | 2017-07-07 | 2019-01-15 | 苏斯帕有限公司 | Plunger-cylinder unit |
| CN117797566A (en) * | 2024-02-28 | 2024-04-02 | 山西磊鑫化工股份有限公司 | Tail gas treatment device for nitrate production |
-
2006
- 2006-06-14 CN CN 200620060506 patent/CN2909960Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104687821A (en) * | 2015-03-18 | 2015-06-10 | 常州市莱特气弹簧有限公司 | Automatic whirling and raising air pressure rod |
| CN109198966A (en) * | 2017-07-07 | 2019-01-15 | 苏斯帕有限公司 | Plunger-cylinder unit |
| CN117797566A (en) * | 2024-02-28 | 2024-04-02 | 山西磊鑫化工股份有限公司 | Tail gas treatment device for nitrate production |
| CN117797566B (en) * | 2024-02-28 | 2024-05-03 | 山西磊鑫化工股份有限公司 | Tail gas treatment device for nitrate production |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070613 Termination date: 20110614 |