CN203297695U - Stop valve - Google Patents
Stop valve Download PDFInfo
- Publication number
- CN203297695U CN203297695U CN2013203240794U CN201320324079U CN203297695U CN 203297695 U CN203297695 U CN 203297695U CN 2013203240794 U CN2013203240794 U CN 2013203240794U CN 201320324079 U CN201320324079 U CN 201320324079U CN 203297695 U CN203297695 U CN 203297695U
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- CN
- China
- Prior art keywords
- valve
- pressure chamber
- valve rod
- rod
- stop
- 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 - Fee Related
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Abstract
The utility model discloses a stop valve which comprises a valve body, a valve cover and a valve rod. The top portion of the valve rod is connected with the top end cover on the valve cover, and the bottom portion of the valve rod is connected with a valve clack on the valve body. An air cylinder connecting disc is arranged in the middle of the valve rod, the upper face and the lower face of the air cylinder connecting disc are connected with the bottom portion of the valve cover and the upper portion of the valve body respectively through screws, the upper portion of the valve rod is further sleeved with an air cylinder piston, the air cylinder piston divides the internal space of the valve cover into an upper air pressure chamber and a lower air pressure chamber, a solenoid valve is further arranged on the valve cover, and is connected with the upper air pressure chamber, and the solenoid valve is connected with the lower air pressure chamber through a valve pipe. An upper membrane clack and a lower membrane clack are replaced by the air cylinder connecting disc, and therefore the structure of the stop valve is simplified, parts are reduced, and transport cost is further lowered; through anti-collision gaskets on the air cylinder connecting disc and the air cylinder piston, the maintenance of the stop valve can be reduced, the service life is prolonged, and using cost is lowered.
Description
Technical field
The utility model relates to a kind of valve, particularly a kind of stop valve.
Background technique
Stop valve claims again the pipe valve valve, belongs to forced seal formula valve, so, when valve closing, must exert pressure to flap, with forced seal face, does not leak.
Existing stop valve as shown in Figure 1, generally comprises valve body 1, valve gap 2 and valve rod; Described valve rod comprises that upper valve rod 3 and bottom that top is connected with motion stops 7 are connected to the lower valve rod 4 on the flap 8 that coordinates with valve body 1, and the bottom of described upper valve rod 3 is connected with the top of lower valve rod 4; Described upper valve rod 3 middle parts are socketed with the upper barrier film lobe 5 that is connected with valve gap 2 bottoms, and described lower valve rod 4 middle parts are socketed with the lower diaphragm plate lobe 6 that is connected with valve body 1 top.When stop valve, when working, need motion stops moving up and down, will be by motion stops toward rising when opening valve.
Existing stop valve links together valve rod and valve gap by upper lower diaphragm plate lobe, makes that stop valve structure is complicated, component are various, makes stop valve heavier, increases cost of transportation.
Will be by motion stops toward descending in throttle down, motion stops is upwards held and is encountered the valve gap top or encounter upper barrier film lobe downwards very much like this, easily causes the damage of stop valve, increases maintenance cost.
The model utility content
The purpose of this utility model is to provide a kind of stop valve, to solve the above-mentioned problems that exist.
To achieve these goals, the technical solution of the utility model is as follows:
A kind of stop valve, it comprises valve body, valve gap and valve rod; It is characterized in that, the top of described valve rod is connected with top end cover on valve gap, and the bottom of described valve rod is connected with the flap on valve body; The middle part of described valve rod is provided with the cylinder land, the upper and lower surface of described cylinder land is connected by screw with the bottom of valve gap and the top of valve body respectively, the top of described valve rod also is socketed with cylinder piston, described cylinder piston is divided into upper air-pressure chamber and lower air-pressure chamber by the valve gap inner space, on described valve gap, also be provided with solenoid valve, described solenoid valve is connected with upper air-pressure chamber, and described solenoid valve is connected with lower air-pressure chamber by the valve pipe.
In an embodiment of the present utility model, described cylinder piston is positioned on valve rod and by locking device and is fixed on valve rod by ladder surface.
In an embodiment of the present utility model, described is interior hexagonal cylindrical screw for the screw that cylinder land and valve body are connected with valve gap.
In an embodiment of the present utility model, the top of described valve gap is provided with lifting bolt.
In an embodiment of the present utility model, described valve rod is provided with stuffing box gland with the side that the cylinder land contacts.
In an embodiment of the present utility model, described locking device is locking nut.
In an embodiment of the present utility model, described cylinder piston upper end is positioned at air-pressure chamber and is provided with the first anti-collision packing ring, and described cylinder land upper end is positioned at lower air-pressure chamber and is provided with the second anti-collision packing ring.
In an embodiment of the present utility model, on described valve body, also be provided with the material mouth.
A kind of stop valve of the present utility model, compare with present product, changes up and down two barrier film lobes into the cylinder land and not only simplify the structure of stop valve, reduced component, but also reduced cost of transportation; Anti-collision packing ring by on cylinder land and cylinder piston, can reduce the maintenance of stop valve, increases working life, reduces user cost, and is simple in structure, very practical, realizes the purpose of this utility model.
Characteristics of the present utility model can be consulted the detailed description of the graphic and following better mode of execution of this case and be obtained to be well understood to.
The accompanying drawing explanation
Fig. 1 is the structural representation of a kind of stop valve in prior art.
Fig. 2 is the structural representation of a kind of stop valve of the present utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with specific embodiment, further set forth the utility model.
As shown in Figure 2, a kind of stop valve of the present utility model, it comprises valve body 10, valve gap 20 and valve rod 30; The top of described valve rod 30 is connected with top end cover 21 on valve gap 20, and the bottom of described valve rod 30 is connected with the flap 11 on valve body 10; The middle part of described valve rod 30 is provided with cylinder land 40, and the side that described valve rod 30 contacts with cylinder land 40 is provided with stuffing box gland 41; The upper and lower surface of described cylinder land 40 is connected by interior hexagonal cylindrical screw 50 with the bottom of valve gap 20 and the top of valve body 10 respectively, the top of described valve rod 30 also is socketed with cylinder piston 31, described cylinder piston 31 is divided into upper air-pressure chamber 22 and lower air-pressure chamber 23 by the valve gap inner space, on described valve gap 20, also be provided with solenoid valve 60, described solenoid valve 60 is connected with upper air-pressure chamber 22, and described solenoid valve 60 is connected with lower air-pressure chamber 23 by valve pipe 61.Described cylinder piston 31 is positioned on valve rod 30 and by locking nut 33 and is fixed on valve rod 30 by ladder surface 32, described cylinder piston 31 upper ends are positioned at air-pressure chamber 22 and are provided with the first anti-collision packing ring 33, described cylinder land 40 upper ends are positioned at lower air-pressure chamber 23 and are provided with the second anti-collision packing ring 42, and the general elasticity resistant material teflon that adopts of described the first anti-collision packing ring 33 and the second anti-collision packing ring 42 is made.
In the utility model, on described valve gap, also be provided with lifting bolt 24.
In the utility model, on described valve body, also be provided with material mouth 12, with gas communication, use for liquid.
A kind of stop valve in the utility model, draught head band ovable valve stem 30 motions by in upper air-pressure chamber 22 and lower air-pressure chamber 23, make stop valve work.During greater than the air pressure in lower air-pressure chamber 23, upper air-pressure chamber 22 internal air pressures promote cylinder pistons 31 moves downward valve rod when the air pressure in upper air-pressure chamber 22, and the flap 11 that valve rod 30 bottoms connect will be sealed up material mouth 12, and stop valve quits work; During less than the air pressure in lower air-pressure chamber 23, lower air-pressure chamber 23 internal air pressures promote cylinder pistons 31 moves upward valve rod when the air pressure in upper air-pressure chamber 22, and the flap 11 that valve rod 30 bottoms connect will leave material mouth 12, and stop valve is started working.
Above demonstration and described basic principle of the present utility model, major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what in above-described embodiment and specification, describe is principle of the present utility model; the utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these changes and improvements all fall in claimed scope of the present utility model.The protection domain that the utility model requires is defined by appending claims and equivalent thereof.
Claims (8)
1. stop valve, it comprises valve body, valve gap and valve rod; It is characterized in that, the top of described valve rod is connected with top end cover on valve gap, and the bottom of described valve rod is connected with the flap on valve body; The middle part of described valve rod is provided with the cylinder land, the upper and lower surface of described cylinder land is connected by screw with the bottom of valve gap and the top of valve body respectively, the top of described valve rod also is socketed with cylinder piston, described cylinder piston is divided into upper air-pressure chamber and lower air-pressure chamber by the valve gap inner space, on described valve gap, also be provided with solenoid valve, described solenoid valve is connected with upper air-pressure chamber, and described solenoid valve is connected with lower air-pressure chamber by the valve pipe.
2. a kind of stop valve according to claim 1, is characterized in that, described cylinder piston is positioned on valve rod and by locking device and is fixed on valve rod by ladder surface.
3. a kind of stop valve according to claim 1, is characterized in that, described is interior hexagonal cylindrical screw for the screw that cylinder land and valve body are connected with valve gap.
4. a kind of stop valve according to claim 1, is characterized in that, the top of described valve gap is provided with lifting bolt.
5. a kind of stop valve according to claim 1, is characterized in that, described valve rod is provided with stuffing box gland with the side that the cylinder land contacts.
6. a kind of stop valve according to claim 1, is characterized in that, described locking device is locking nut.
7. a kind of stop valve according to claim 1, is characterized in that, described cylinder piston upper end is positioned at air-pressure chamber and is provided with the first anti-collision packing ring, and described cylinder land upper end is positioned at lower air-pressure chamber and is provided with the second anti-collision packing ring.
8. a kind of stop valve according to claim 1, is characterized in that, on described valve body, also is provided with the material mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203240794U CN203297695U (en) | 2013-06-06 | 2013-06-06 | Stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203240794U CN203297695U (en) | 2013-06-06 | 2013-06-06 | Stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203297695U true CN203297695U (en) | 2013-11-20 |
Family
ID=49573702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203240794U Expired - Fee Related CN203297695U (en) | 2013-06-06 | 2013-06-06 | Stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203297695U (en) |
-
2013
- 2013-06-06 CN CN2013203240794U patent/CN203297695U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131120 Termination date: 20210606 |