CN204281179U - Lifting air pressure bar - Google Patents
Lifting air pressure bar Download PDFInfo
- Publication number
- CN204281179U CN204281179U CN201420679986.5U CN201420679986U CN204281179U CN 204281179 U CN204281179 U CN 204281179U CN 201420679986 U CN201420679986 U CN 201420679986U CN 204281179 U CN204281179 U CN 204281179U
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- Prior art keywords
- piston rod
- interior pipe
- switch
- air pressure
- pressure bar
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Abstract
The utility model relates to office furniture accessory technical field, particularly relates to a kind of lifting air pressure bar.This lifting air pressure bar comprises piston rod and interior pipe, interior pipe is placed in piston rod, the rear end of interior pipe is provided with switch valve, switch valve comprises valve body and switch, it is characterized in that: described piston rod front end is provided with sealing member, piston rod is provided with rear top cover and bowl-type rubber pad, and the rear end of piston rod is provided with seal ring and breather hole; Be provided with strut bar in described interior pipe, the rear end of interior pipe is provided with lengthening switch valve, lengthens switch valve and comprises valve body and switch; Described valve body is provided with external diameter seal ring, and the junction of switch front end and interior pipe is provided with sealing arrangement and fastener; Described piston rod outside is provided with outer tube, and outside pipe is provided with outer tube.The structure of this lifting air pressure bar is simple, with low cost, in use rotates smoothly and is elevated, and the buffering of gas, to user in the impression of comfortable seat, can be widely used in office revolving chair.
Description
Technical field
The utility model relates to a kind of office furniture accessory, particularly relates to a kind of lifting air pressure bar.
Background technology
Lifting air pressure bar can be widely used in office furniture accessory technology, it is the main composition part of office revolving chair, in prior art, in lifting air pressure bar, external diameter is sealed into centrum sealing, easily lost efficacy in process of production, secondly valve body sealing structure also easily lost efficacy when tolerance stack, caused fraction defective to raise and increased productive costs.
Utility model content
The utility model is intended to address the aforementioned drawbacks, and provides a kind of lifting air pressure bar.
In order to overcome the defect existed in background technology, the utility model solves the technical scheme that its technical matters adopts: this lifting air pressure bar comprises piston rod and interior pipe, interior pipe is placed in piston rod, the rear end of interior pipe is provided with switch valve, switch valve comprises valve body and switch, it is characterized in that: described piston rod front end is provided with sealing member, and piston rod is provided with rear top cover and bowl-type rubber pad, the rear end of piston rod is provided with seal ring and breather hole; Be provided with strut bar in described interior pipe, the rear end of interior pipe is provided with lengthening switch valve, lengthens switch valve and comprises valve body and switch; Described valve body is provided with external diameter seal ring, and the junction of switch front end and interior pipe is provided with sealing arrangement and fastener; Described piston rod outside is provided with outer tube, and outside pipe is provided with outer tube.
According to another embodiment of the present utility model, the material comprising described piston rod is further formaldehyde.
According to another embodiment of the present utility model, it is ball shape that further described piston rod front end is provided with sealing member.
According to another embodiment of the present utility model, comprise described sealing arrangement further and comprise spacer and seal ring, spacer both sides are respectively provided with a seal ring.
According to another embodiment of the present utility model, comprise the switch that described valve body front end is connected with interior pipe further and be provided with projection, protruding locking with fastener is connected.
According to another embodiment of the present utility model, further described valve body material is nylon.
The beneficial effects of the utility model are: the structure of this lifting air pressure bar is simple, with low cost, in use can rotate smoothly and be elevated, the buffering of gas, award the seat impression that user is comfortable, can be widely used in office revolving chair.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is inner structure schematic diagram of the present utility model;
Fig. 2 is the structural representation of sealing arrangement in Fig. 1;
Fig. 3 is outside portion of the present utility model structural representation;
Wherein: 1, piston rod, 2, interior pipe, 3, external diameter seal ring, 4, sealing arrangement, 5, switch valve, 6, valve body, 7, switch, 8, spacer, 9, seal ring, 10, protruding, 11 lock tubes, 12 ball sealers, top cover after 13,14 bowl-type rubber pads, 15 seal rings, 16 breather holes, 17 strut bars, 18 outer tubes, 19 outer tubes.
Detailed description of the invention
Fig. 1 is inner structure schematic diagram of the present utility model, figure comprises piston rod 1 and interior pipe 2, interior pipe 2 is placed in piston rod 1, the rear end of interior pipe 2 is provided with switch valve 5, switch valve 5 comprises valve body 6 and switch 7, described piston rod 1 front end is provided with sealing member 12, and piston rod 1 is provided with rear top cover 13 and bowl-type rubber pad 14, and the rear end of piston rod 1 is provided with seal ring 15 and breather hole 16; Be provided with strut bar 17 in described interior pipe 2, the rear end of interior pipe 2 is provided with and lengthens switch valve 5, lengthens switch valve 5 and comprises valve body 6 and switch 7; Described valve body 6 is provided with external diameter seal ring 3, the junction of switch 7 front end and interior pipe 2, both valve inner, is provided with sealing arrangement 4 and fastener 11; The material of piston rod 1 is formaldehyde; The material of valve body 6 is nylon.
As shown in Figure 2, sealing arrangement 4 comprises spacer 8 and seal ring 9, and spacer 8 both sides are respectively provided with a seal ring 9.Between two O type circles, increase spacer, increase seal area, improve sealing effectiveness.
The switch 7 that valve body 6 front end is connected with interior pipe 2 is provided with protruding 10, and projection 10 is locked with fastener 11 and is connected.With lock tube 11, protruding 10 ensure that switch 7 is connected rear locking with interior pipe 2, can not loosen.
Be external structure schematic diagram of the present utility model shown in Fig. 3, piston rod 1 outside is provided with outer tube 18, and outer tube 18 outside is provided with outer tube 19.When product compresses, being the state of outer tube 18, when product extends, is the state of outer tube 20.
This lifting air pressure bar can be widely used in office furniture accessory technical field, its principle of work is the principle according to difference of pressure, high-pressure inert gas (nitrogen) is poured in gas bar inside, when open top part switch, make inner two air chamber intercommunications, air pressure inside is greater than external pressure piston rod 1 and ejects, realize the object raised, during compression, the applied external force being greater than internal pressure need be applied, after adjustment height, closing switch, internal pressure recovers the air chamber of two equalization of pressure again, keeps quiescence.The external diameter sealing 3 of valve body is line seal, thus improves sealing effectiveness, is provided with two O type circle sealings, and increases spacer between two O type circles, increase seal area, improve sealing effectiveness in switch 7 and interior pipe 2 junction (valve inner) sealing arrangement 4.The mechanism of this air pressure rod is simply with low cost, greatly reduces production cost, and has good in-use performance, adapts to the demand in market, is widely used in field of office furniture.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff completely can in the scope not departing from technological thought of the present utility model, carry out various change and amendment, technical scope of the present utility model is not limited to the content on specification sheets, must determine its technical scope according to interest field.
Claims (6)
1. a lifting air pressure bar, comprise piston rod (1) and interior pipe (2), interior pipe (2) is placed in piston rod (1), the rear end of interior pipe (2) is provided with switch valve (5), switch valve (5) comprises valve body (6) and switch (7), it is characterized in that: described piston rod (1) front end is provided with sealing member (12), piston rod (1) is provided with rear top cover (13) and bowl-type rubber pad (14), and the rear end of piston rod (1) is provided with seal ring (15) and breather hole (16); Be provided with strut bar (17) in described interior pipe (2), the rear end of interior pipe (2) is provided with and lengthens switch valve (5), lengthens switch valve (5) and comprises valve body (6) and switch (7); Described valve body (6) is provided with external diameter seal ring (3), and the junction of switch (7) front end and interior pipe (2) is provided with sealing arrangement (4) and fastener (11); Described piston rod (1) outside is provided with outer tube (18), and outer tube (18) outside is provided with outer tube (19).
2. lifting air pressure bar as claimed in claim 1, is characterized in that: described piston rod (1) material is formaldehyde.
3. lifting air pressure bar as claimed in claim 1, is characterized in that: it is ball shape that described piston rod (1) front end is provided with sealing member (12).
4. lifting air pressure bar as claimed in claim 1, it is characterized in that: described sealing arrangement (4) comprises spacer (8) and seal ring (9), spacer (8) both sides are respectively provided with a seal ring (9).
5. lifting air pressure bar as claimed in claim 1, is characterized in that: the switch (7) that described valve body (6) front end is connected with interior pipe (2) is provided with projection (10), and protruding (10) are locked with fastener (11) and are connected.
6. lifting air pressure bar as claimed in claim 1, is characterized in that: described valve body (6) material is nylon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420679986.5U CN204281179U (en) | 2014-11-14 | 2014-11-14 | Lifting air pressure bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420679986.5U CN204281179U (en) | 2014-11-14 | 2014-11-14 | Lifting air pressure bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204281179U true CN204281179U (en) | 2015-04-22 |
Family
ID=52864364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420679986.5U Active CN204281179U (en) | 2014-11-14 | 2014-11-14 | Lifting air pressure bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204281179U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018072188A1 (en) * | 2016-10-20 | 2018-04-26 | 安徽莱特气弹簧有限公司 | Rigid locking pneumatic rod |
-
2014
- 2014-11-14 CN CN201420679986.5U patent/CN204281179U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018072188A1 (en) * | 2016-10-20 | 2018-04-26 | 安徽莱特气弹簧有限公司 | Rigid locking pneumatic rod |
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| GR01 | Patent grant |