CN202867406U - Cylinder with valve core rectangular sealing ring - Google Patents
Cylinder with valve core rectangular sealing ring Download PDFInfo
- Publication number
- CN202867406U CN202867406U CN201220490488.7U CN201220490488U CN202867406U CN 202867406 U CN202867406 U CN 202867406U CN 201220490488 U CN201220490488 U CN 201220490488U CN 202867406 U CN202867406 U CN 202867406U
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- CN
- China
- Prior art keywords
- piston
- cylinder
- spool
- valve core
- piston rod
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- 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
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Abstract
A cylinder with a valve core rectangular sealing ring comprises a front cover, a rear cover, a cylinder barrel, a piston rod, a piston, a valve core, a spring and a front cover dustproof seat. The front cover, the cylinder barrel and the rear cover are connected in sequence, the piston rod penetrates through the front cover, a part of the piston rod is arranged in the cylinder barrel, the piston is arranged in the cylinder barrel and connected with the piston rod, the valve core is arranged in the piston and connected with the piston, the spring is connected with the valve core in a sleeved mode, the front cover dustproof seat is arranged in the front cover and is connected with the piston rod in a sleeved mode, the cylinder further comprises the valve core rectangular sealing ring, and the valve core rectangular sealing ring is arranged between the valve core and the piston and is connected with the valve core in a sleeved mode. The cylinder with the valve core rectangular sealing ring has the advantages of being good in sealing performance, and stable in property.
Description
Technical field
The utility model relates to a kind of cylinder, relates in particular to a kind of cylinder with spool rectangular seal.
Background technique
Sealing is to weigh an important indicator of cylinder standard, in case whole gas circuit is leaked, the gas of leakage can flow to cylinder and be accumulated in together pusher dynamic air cylinder generation misoperation.At present, the cylinder on the market generally adopts mounting O-shaped seal ring on piston, and dust-proof seal ring is installed to reach sealing effect in protecgulum, makes cylinder without internal and outernal leakage.But, existing cylinder is not owing to arranging seal arrangement between piston and spool, or such as the patent No. 200520124423.0 disclosed a kind of exhaust brake cylinder of diesel engines, between the interior edge face of valve seat and valve pocket diapire, be provided with seal ring, but shown in its diagram, be a kind of O RunddichtringO, in use, the poor easy generation gas leak phenomenon of sealing, and the O RunddichtringO is insecure easily falls down, and loses function, affects the usability of cylinder.
The model utility content
The purpose of this utility model is to provide a kind of cylinder with spool rectangular seal, exists between piston and the spool and has the gap to solve existing cylinder, easily produces the technical problem of gas leak phenomenon.
For achieving the above object, the utility model provides a kind of cylinder with spool rectangular seal, comprise: protecgulum, bonnet, cylinder barrel, piston rod, piston, spool, spring and protecgulum anti-dust seat, protecgulum, cylinder barrel is connected with bonnet and is connected, piston rod is arranged in protecgulum, part is arranged in the cylinder barrel, piston is arranged in the cylinder barrel and with piston rod and is connected, spool is arranged in the piston and with piston and is connected, spring and valve core housing connect in succession, the protecgulum anti-dust seat is arranged on inner the socket with piston rod of protecgulum and is connected, and it also comprises a spool rectangular seal, and the spool rectangular seal is arranged between spool and the piston and with valve core housing and connects in succession.
The utility model improves existing cylinder, at spool one spool rectangular seal is set, when the pressure that enters cylinder during greater than the elastic force of spring, piston-advance, it is close to piston that air inlet pressure spool, and in the whole course of action, the rectangular seal on the spool is adjacent to piston movement, sealing effect is good, has avoided gas leakage.Therefore, compared with prior art, the cylinder that the utlity model has the spool rectangular seal has advantages of good airproof performance, stable performance.
Description of drawings
Fig. 1 is the structural representation that the utlity model has the cylinder of spool rectangular seal;
Fig. 2 is the sectional view of spool rectangular seal of the present utility model;
Fig. 3 is the sectional view of spool of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, specify the utility model.
See also Fig. 1, Fig. 2 and Fig. 3, a kind of cylinder with spool rectangular seal, comprise: protecgulum 1, bonnet 2, cylinder barrel 3, piston rod 4, piston 5, spool 6, spring 7, spool rectangular seal 8 and protecgulum anti-dust seat 9, protecgulum 1, cylinder barrel 3 is connected with bonnet successively and is connected, piston rod 4 is arranged in protecgulum 1, part is arranged in the cylinder barrel 3, piston 5 is arranged in the cylinder barrel 3 and with piston rod 4 and is connected, spool 6 is arranged in the piston 5 and with piston 5 and is connected, spring 7 is connected with spool 6 sockets, spool rectangular seal 8 is arranged between spool 6 and the piston 5 and with spool 6 sockets and is connected, and protecgulum anti-dust seat 9 is arranged on protecgulum 1 inner the socket with piston rod 4 and is connected.
In the utility model when work,, it is close to piston 5 that air inlet pressure spool 6, when the pressure that enters cylinder during greater than the elastic force of spring 7, piston 5 advances, and in the whole course of action, the spool rectangular seal 8 on the spool 6 is adjacent to piston movement, sealing effect is good, has avoided gas leakage.
The utility model improves existing cylinder, at spool one spool rectangular seal is set, it is close to piston that air inlet pressure spool, when the pressure that enters cylinder during greater than the elastic force of spring, piston-advance, in the whole course of action, the rectangular seal on the spool is adjacent to piston movement, sealing effect is good, has avoided gas leakage.In addition, on spool and face that piston contacts, offer three circle grooves, when having gas permeation to come in, can have the function of labyrinth seal, therefore, compared with prior art, the cylinder that the utlity model has the spool rectangular seal has advantages of good airproof performance, stable performance.
Above disclosed only be several specific embodiment of the present utility model, but the utility model is not limited thereto, the changes that any person skilled in the art can think of all should drop in the protection domain of the present utility model.
Claims (1)
1. cylinder with spool rectangular seal, comprise: protecgulum (1), bonnet (2), cylinder barrel (3), piston rod (4), piston (5), spool (6), spring (7) and protecgulum anti-dust seat (9), described protecgulum (1), cylinder barrel (3) is connected 2 with bonnet) connect successively, described piston rod (4) is arranged in described protecgulum (1), part is arranged in the described cylinder barrel (3), described piston (5) is arranged in the described cylinder barrel (3) and with described piston rod (4) and is connected, described spool (6) is arranged in the described piston (5) and with described piston (5) and is connected, described spring (7) is connected with described spool (6) socket, described protecgulum anti-dust seat (9) is arranged on inner the socket with described piston rod (4) of described protecgulum (1) and is connected, it is characterized in that, also comprise a spool rectangular seal (8), described spool rectangular seal (8) is arranged between described spool (6) and the piston (5) and with described spool (6) socket and is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220490488.7U CN202867406U (en) | 2012-09-25 | 2012-09-25 | Cylinder with valve core rectangular sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220490488.7U CN202867406U (en) | 2012-09-25 | 2012-09-25 | Cylinder with valve core rectangular sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202867406U true CN202867406U (en) | 2013-04-10 |
Family
ID=48034129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220490488.7U Expired - Lifetime CN202867406U (en) | 2012-09-25 | 2012-09-25 | Cylinder with valve core rectangular sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202867406U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438045A (en) * | 2013-08-28 | 2013-12-11 | 浙江亿日气动科技有限公司 | Vacuum air cylinder with valve |
-
2012
- 2012-09-25 CN CN201220490488.7U patent/CN202867406U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438045A (en) * | 2013-08-28 | 2013-12-11 | 浙江亿日气动科技有限公司 | Vacuum air cylinder with valve |
| CN103438045B (en) * | 2013-08-28 | 2016-05-04 | 浙江亿日气动科技有限公司 | Band valve vacuum cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130410 |