CN2602222Y - Air-operated piston valve - Google Patents
Air-operated piston valve Download PDFInfo
- Publication number
- CN2602222Y CN2602222Y CN 03204698 CN03204698U CN2602222Y CN 2602222 Y CN2602222 Y CN 2602222Y CN 03204698 CN03204698 CN 03204698 CN 03204698 U CN03204698 U CN 03204698U CN 2602222 Y CN2602222 Y CN 2602222Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- spool
- air chamber
- valve seat
- 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
- Multiple-Way Valves (AREA)
- Sliding Valves (AREA)
Abstract
The utility model provides a pneumatic piston valve, which consists of a valve body, a valve seat, a middle body, and a valve core. The middle body is arranged between the valve body and the valve seat, the valve core is arranged in the inner holes of the valve body and the middle body, a circle convexity is arranged on the outer wall, an air chamber is formed between the valve body and the middle body, the valve core doubles as a liquid passage. Adopting the utility model can make the valve structure more reasonable with good technology, and can effectively ensure the assembly pass rate of the product quality and the operational reliability.
Description
One, technical field:
The utility model relates to a kind of valve, specifically a kind of pneumatic piston valve.
Two, background technique:
The pneumatic piston valve, a kind of as pneumatic control valve, the wide automation field that applies in the industrial production.Traditional modulating valve, actuator and spool are for dividing body structure, and volume is big, cost is high.A kind of pipe type pneumatic valve that occurs on the market in recent years (patent No. is 89213676.6), because of its product spool and actuator's piston are made one, spool is not only made valve rod but also make fluid medium channel, make its structure obtain simplifying, have the advantage that volume is little, technology is simple, cost is low, find broad application.Facts have proved, because of its whole valve body for splitting the two halves structure, spool is positioned within two valve bodies, its assembling situation can't be controlled and be adjusted the complete machine difficult quality guarantee.
Three, summary of the invention:
The purpose of this utility model is to provide a kind of deficiency that can overcome the said goods, makes its operation more steady, reliable in quality, a kind of pneumatic piston valve of long service life.
The utility model is achieved in that
This pneumatic piston valve is made up of valve body, valve seat, intermediate, several parts of spool, on valve body, the valve seat fluid passage is arranged, sealing gasket is housed on the valve seat, spool is hollow tubular, outer wall has annular convex surface, between valve body and the valve seat intermediate is housed, spool is contained in valve body and the intermediate endoporus, and is slippery with the endoporus slideway with seal ring, and the spool annular convex surface matches with seal ring and form air chamber between valve body and intermediate, the A interface is arranged on the valve body, communicate with air chamber one side, C-channel is arranged, intermediate has B interface, be communicated with the air chamber opposite side, the D passage is arranged.C-channel and D passage are used for checking whether seal ring leaks.Spool is subjected to the effect of medium and moves in the air chamber that valve body and intermediate form.Whether spool contacts the on off operating mode that has shown valve with sealing gasket on the valve seat.
The utility model is on the basis of former opposite opened valve body, increased by an intermediate, spool is contained between valve body and the intermediate, the spool end can be stretched out outside the intermediate, be convenient to the assembling of spool and sealing condition are tested and adjusted, help guaranteeing the assembling up-to-standard rate of quality of product and the stability of operation.
Four, description of drawings:
The utility model is described in further detail below in conjunction with accompanying drawing:
Accompanying drawing 1 is the general assembly schematic representation of this model utility;
Five, embodiment:
As shown in the figure: this pneumatic piston valve is by valve body 1, valve seat 4, intermediate 3, spool more than 2 parts are formed, valve body, the valve seat intermediate hole is the fluid passage, sealing gasket 5 is housed on the valve seat, spool is hollow tubular, outer wall has annular convex surface, between valve body and the valve seat intermediate is housed, spool is contained in valve body and the intermediate endoporus, and is slippery with the endoporus slideway with seal ring, and the spool annular convex surface matches with seal ring and form air chamber between valve body and intermediate, the A interface is arranged on the valve body, communicate with air chamber one side, C-channel is arranged, B interface is arranged on the intermediate, be communicated with the air chamber opposite side, the D passage is arranged.Spool is subjected to the effect of medium and moves in the air chamber of valve body and intermediate formation.C, D passage are used for checking whether seal ring leaks.Whether spool contacts the on off operating mode that has shown valve with sealing gasket on the valve seat.
Claims (1)
1, a kind of pneumatic piston valve, by valve body, valve seat, intermediate, several parts of spool are formed, valve body, the fluid passage is arranged on the valve seat, sealing gasket is housed on the valve seat, spool is hollow tubular, outer wall has annular convex surface, it is characterized in that being equipped with between valve body and the valve seat intermediate, and spool is contained in valve body and the intermediate endoporus, slippery with endoporus slideway with seal ring, the spool annular convex surface matches with seal ring and form air chamber between valve body and intermediate, and the A interface is arranged on the valve body, communicates with air chamber one side, C-channel is arranged, B interface is arranged on the intermediate, be communicated with, the D passage is arranged with the air chamber opposite side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03204698 CN2602222Y (en) | 2003-03-06 | 2003-03-06 | Air-operated piston valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03204698 CN2602222Y (en) | 2003-03-06 | 2003-03-06 | Air-operated piston valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2602222Y true CN2602222Y (en) | 2004-02-04 |
Family
ID=34158671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03204698 Expired - Lifetime CN2602222Y (en) | 2003-03-06 | 2003-03-06 | Air-operated piston valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2602222Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100368714C (en) * | 2004-07-16 | 2008-02-13 | Smc株式会社 | Paint selector valve |
-
2003
- 2003-03-06 CN CN 03204698 patent/CN2602222Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100368714C (en) * | 2004-07-16 | 2008-02-13 | Smc株式会社 | Paint selector valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100497012C (en) | Pressed gas direction control valve | |
| CN201696657U (en) | Pneumatic diaphragm valve | |
| CN210290847U (en) | Novel four-position T-shaped three-way ball valve | |
| CN202091552U (en) | Pneumatic three-way valve | |
| CN104344010A (en) | Electromagnetic flow reversing valve | |
| CN202901306U (en) | All-stainless-steel pneumatic angle seat valve | |
| CN208417549U (en) | A kind of Pneumatic emptying valve | |
| CN2602222Y (en) | Air-operated piston valve | |
| CN207539403U (en) | A kind of positive pinch roller side valve | |
| CN202326486U (en) | Leakage-free type pneumatic control hydraulic reversing valve | |
| CN103075526B (en) | Butterfly valve with inflation seal valve plate | |
| CN202327328U (en) | Plastic pneumatic diaphragm valve | |
| CN2661963Y (en) | Pneumatic diaphragm pump | |
| CN218935353U (en) | Pneumatic diaphragm valve | |
| CN202359933U (en) | Automatic aeroelastic switch for vehicle door | |
| CN202302234U (en) | Novel air flow control valve | |
| CN202392159U (en) | Reversing valve | |
| CN206520606U (en) | A kind of harbour machinery brakes trailer control valve | |
| CN215371079U (en) | Two cross valve structures | |
| CN2639627Y (en) | Elastic negative pressure automatic valve | |
| CN2316510Y (en) | Bidirectional auto-sealing non-leakage high-temp butterfly valve | |
| CN221374503U (en) | Brand new valve rod follow-up flexible connection coaxial valve | |
| CN214618112U (en) | Plastic driving cylinder of pneumatic diaphragm valve | |
| CN107701771A (en) | A kind of positive pinch roller side valve | |
| CN2646499Y (en) | Gas valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130306 Granted publication date: 20040204 |