CN204573247U - A kind of pneumatic rapid cut-off valve - Google Patents
A kind of pneumatic rapid cut-off valve Download PDFInfo
- Publication number
- CN204573247U CN204573247U CN201520197160.XU CN201520197160U CN204573247U CN 204573247 U CN204573247 U CN 204573247U CN 201520197160 U CN201520197160 U CN 201520197160U CN 204573247 U CN204573247 U CN 204573247U
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- CN
- China
- Prior art keywords
- valve
- pneumatic actuator
- valve rod
- valve body
- elastic packing
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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 - Fee Related
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Abstract
The utility model relates to a kind of pneumatic rapid cut-off valve, comprise valve body, valve rod, elastic packing valve seat, valve plate, pneumatic actuator, valve body is fixedly connected with pneumatic actuator, pneumatic actuator control valve opens and closes, valve rod is connected with valve plate, be provided with elastic packing valve seat in valve body chamber, the upper and lower two ends of valve plate are sealed by elastic packing valve seat; Valve body is the integral structure of aluminum alloy material, valve rod be up and down one coaxial structure, stem exterior is external tooth type spline structure, and valve plate inside is the internal gear type spline structure matched with stem exterior, and valve rod top, middle part, bottom are all set with lubricative axle sleeve.Advantage is: structure is simple, good airproof performance, self-locking performance is strong, so in use, reduce rate of fault, and be convenient to carry out to overhaul, safeguard, change, maintenance expenses cost is low, improve manufacturing efficiency and working efficiency, its working life and reliability improve, and are applicable to use in various cooling water system pipe conveying procedure.
Description
Technical field
The utility model relates to a kind of pneumatic rapid cut-off valve.
Background technique
At present, pneumatic rapid cut-off valve is the valve that flowing medium conveyance conduit uses, due to the impact by its work on the spot environment, and the material of valve body own and the incomplete impact of structure, particularly valve rod adopts the semi-shaft type design of two axles above and below valve plate, valve rod adopts taper pin to fix with the mode that is fixedly connected with of valve plate, the phenomenon such as leakage, taper pin fracture, even off-axis often can be there is after using a period of time, the working life of valve is shorter, maintenance expenses cost is high, manufacturing efficiency is low, and its working life and reliability are reduced greatly.
Summary of the invention
For overcoming the deficiencies in the prior art, the purpose of this utility model is to provide a kind of pneumatic rapid cut-off valve, reduces the rate of fault of valve, reduces maintenance expenses cost, enhances productivity, and ensures carrying out smoothly of production.
For achieving the above object, the utility model is achieved through the following technical solutions:
A kind of pneumatic rapid cut-off valve, comprise valve body, valve rod, elastic packing valve seat, valve plate, pneumatic actuator, valve body is fixedly connected with pneumatic actuator, pneumatic actuator control valve opens and closes, valve rod is connected with valve plate, be provided with elastic packing valve seat in valve body chamber, the upper and lower two ends of valve plate are sealed by elastic packing valve seat; Valve body is the integral structure of aluminum alloy material, valve rod be up and down one coaxial structure, stem exterior is external tooth type spline structure, and valve plate inside is the internal gear type spline structure matched with stem exterior, and valve rod top, middle part, bottom are all set with lubricative axle sleeve.
On described valve rod, end valve neck place is set with 3 O-ring seals.
Compared with prior art, the beneficial effects of the utility model are:
The material of valve body is aluminum alloy valve body, and overall construction intensity is high, strong for adaptive capacity to environment, and valve rod adopts coaxial-type integral type valve rod, it is connected by tooth-like spline structure that valve rod is connected with valve plate, and this kind of mode transmitting torque is large, substantially increases valve plate and supports shock proof ability; Add at the valve neck place of valve rod and valve body upper end and be set with three seals cushion rubber, avoid the generation of Seepage, structure is simple, good airproof performance, self-locking performance is strong, so in use, reduces rate of fault, and be convenient to carry out to overhaul, safeguard, change, maintenance expenses cost is low, and using effect is good, improves manufacturing efficiency and working efficiency, its working life and reliability obtain and greatly improve, and are applicable to use in various cooling water system pipe conveying procedure.
Accompanying drawing explanation
Fig. 1 is the structural representation of pneumatic rapid cut-off valve.
Fig. 2 is pneumatic rapid cut-off valve sectional view.
Fig. 3 is the sectional view of Fig. 2 along A-A line.
Fig. 4 is valve rod external tooth type spline structure schematic diagram.
Fig. 5 is valve plate internal gear type spline structure schematic diagram.
In figure: lubricative axle sleeve 13-external tooth type spline structure 14-internal gear type spline structure in lubricative axle sleeve 12-on lubricative axle sleeve 3-valve rod 4-elastic packing valve seat 5-valve plate 6-O-ring seal 7-solenoid valve 8-pneumatic actuator 9-source of the gas three linked piece 10-signaling switch 11-under 1-valve body 2-.
Embodiment
Below in conjunction with Figure of description, the utility model is described in detail, but it should be noted that enforcement of the present utility model is not limited to following mode of execution.
See Fig. 1-Fig. 5, a kind of pneumatic rapid cut-off valve, comprises valve body 1, lower lubricative axle sleeve 2, valve rod 3, elastic packing valve seat 4, valve plate 5, O-ring seal 6, solenoid valve 7, pneumatic actuator 8, source of the gas three linked piece 9, signaling switch 10, upper lubricative axle sleeve 11, middle lubricative axle sleeve 12, the tooth-like spline of valve rod 3, the tooth-like spline of valve plate 5;
Upper and lower in valve body 1 chamber is provided with mounting hole site, upper and lower mounting hole site is provided with rotation valve rod 3, rotation valve rod 3 is provided with valve plate 5, valve plate 5 realizes sealing with valve body 1 by the elastic packing valve seat 4 be arranged in valve body 1 chamber, elastic packing valve seat 4 contacts the interference fit of tightening seal with valve plate 5 soft or hard, valve rod 3 upper, middle and lower portion is equipped with lubricative axle sleeve 11,12,2, and upper and lower two elastic packing valve seat 4 outsides arrange middle lubricative axle sleeve 12, lower lubricative axle sleeve 2 respectively
The material of valve body 1 is aluminum alloy valve body 1, the top of valve body 1 has been bolted pneumatic actuator 8, the intermediate portion of pneumatic actuator 8 is provided with and exports that to meet Pan Chu be the output terminal of octagon incircle axle sleeve as Power output, output terminal carries out being connected with the top square shaft of valve rod 3 and drives it to rotate, thus driving the rotation of valve plate 5, the quick Trimmed sums for flowing medium conveyance conduit regulates; The material of valve rod 3 is stainless steel valve rod 3, adopts one coaxial structure up and down; On valve rod 3 in upper mounting holes position in valve body 1 chamber, end valve neck place arranges and is set with 3 O-ring seals 6.
It is connected by tooth-like spline structure that valve rod 3 is connected with valve plate 5, valve rod 3 outside is external tooth type spline structure 13, and valve plate 5 is internal gear type spline structure 14, the two transmitting torque that cooperatively interacts, valve plate 5 does rotary motion within the scope of 0-90 ° with valve rod 3, and control valve opens and closes.
Pneumatic actuator 8 is arranged on the top of valve body 1 as the Power Drive Unit of pneumatic rapid cut-off valve, and be connected with the top of valve rod 3, solenoid valve 7 is for controlling pneumatic actuator 8 movement direction, source of the gas three linked piece 9 is modular source of the gas processing elements, signaling switch 10 is exactly the movement and the control valve keying that carry out instruction pneumatic actuator 8 according to testing signal, by the keying of supporting remote PLC control Systematical control pneumatic actuator 8, thus the Trimmed sums of control flow check body medium conveyance conduit regulates.
Working principle of the present utility model:
After signaling switch 10 detects hot rolling workpiece, pneumatic source of the gas, source of the gas enters pneumatic actuator 8 through solenoid valve 7 after being processed by source of the gas three linked piece 9, and control valve opens and closes.During valve opening, solenoid valve obtains electric, and pressurized air enters the side of pneumatic actuator 8, promotes piston movement, and band ovable valve stem 3, valve plate 5 are rotated counterclockwise together, and valve is rotarily opened within the scope of 0-90 °; When closing valve, solenoid valve dead electricity, pressurized air enters the opposite side of pneumatic actuator 8, promotes piston reverses direction motion, and band ovable valve stem 3, valve plate 5 turn clockwise together, make valve rotary closing within the scope of 0-90 °; In the whole opening-closing process of valve, operation control mode can be controlled by field control cabinet, also can switch to remote control room and automatically controls, and meanwhile, the keying position of valve can reach remote control room display, and operation controls very convenient.
Claims (2)
1. a pneumatic rapid cut-off valve, comprise valve body, valve rod, elastic packing valve seat, valve plate, pneumatic actuator, valve body is fixedly connected with pneumatic actuator, pneumatic actuator control valve opens and closes, valve rod is connected with valve plate, be provided with elastic packing valve seat in valve body chamber, the upper and lower two ends of valve plate are sealed by elastic packing valve seat; It is characterized in that, valve body is the integral structure of aluminum alloy material, valve rod be up and down one coaxial structure, stem exterior is external tooth type spline structure, valve plate inside is the internal gear type spline structure matched with stem exterior, and valve rod top, middle part, bottom are all set with lubricative axle sleeve.
2. a kind of pneumatic rapid cut-off valve according to claim 1, is characterized in that, on described valve rod, end valve neck place is set with 3 O-ring seals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520197160.XU CN204573247U (en) | 2015-04-02 | 2015-04-02 | A kind of pneumatic rapid cut-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520197160.XU CN204573247U (en) | 2015-04-02 | 2015-04-02 | A kind of pneumatic rapid cut-off valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204573247U true CN204573247U (en) | 2015-08-19 |
Family
ID=53865886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520197160.XU Expired - Fee Related CN204573247U (en) | 2015-04-02 | 2015-04-02 | A kind of pneumatic rapid cut-off valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204573247U (en) |
-
2015
- 2015-04-02 CN CN201520197160.XU patent/CN204573247U/en not_active Expired - Fee Related
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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: 20150819 Termination date: 20170402 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |