CN203297634U - Stop valve - Google Patents
Stop valve Download PDFInfo
- Publication number
- CN203297634U CN203297634U CN2013203242357U CN201320324235U CN203297634U CN 203297634 U CN203297634 U CN 203297634U CN 2013203242357 U CN2013203242357 U CN 2013203242357U CN 201320324235 U CN201320324235 U CN 201320324235U CN 203297634 U CN203297634 U CN 203297634U
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- CN
- China
- Prior art keywords
- valve
- valve rod
- rod
- stop
- stop valve
- 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. A valve clack is arranged on the bottom portion of the valve rod, and a valve clack matching face is arranged on the bottom face, close to the valve clack, of the valve body. An air cylinder connecting disc connected with the valve body is arranged on the bottom portion of the valve cover, and is arranged on the lower portion of the valve rod, an air cylinder piston is arranged on the upper portion of the valve rod, the air cylinder piston divides the internal space of the valve cover into an upper air pressure chamber and a lower air pressure chamber, and the top portion of the valve rod is connected with the top end cover on the valve cover. Compared with existing products, the stop valve enables original two valve rods to be changed into one valve rod, machining accumulative errors are reduced due to the valve rod, parts are reduced due to the fact that a support is changed into an internal support, the structure is simple, practicality is achieved, and the aim of the stop valve is achieved.
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.Upper valve rod 3 is connected with the lower valve rod connecting head 6 on lower valve rod 4 by upper valve rod link 5.By the transmission between two valve rods, realize the closure or openness of stop valve, increased mach accumulated error, mechanical part is too much, should not install and keep in repair.
The model utility content
The purpose of this utility model is to provide a kind of stop valve, to solve two valve rods, brings the problem of machining error.
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 bottom of described valve rod is provided with flap, and the bottom surface of the contiguous flap of described valve body is provided with the flap fitting surface; Described valve gap bottom is provided with the cylinder land that is connected with valve body, described cylinder land is arranged on the bottom of valve rod, the top of described valve rod is provided with cylinder piston, described cylinder piston is divided into upper air-pressure chamber and lower air-pressure chamber by the inner space of valve gap, and the top of described valve rod is connected with the top end cover on valve gap.
In an embodiment of the present utility model, between described valve gap and cylinder land, form Seal cage, described cylinder piston sidewall and Seal cage inwall closely cooperate.
In an embodiment of the present utility model, on described valve gap, also be provided with solenoid valve.
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, on described stuffing box gland, also be provided with elastic washer.
In an embodiment of the present utility model, on described flap fitting surface, also be provided with the material mouth.
A kind of stop valve of the present utility model, compare with present product, by two of original valve rods, changes a valve rod into, valve rod has reduced the machining cumulative error, support changes internal stent into and reduced component, simple in structure, very practical, realize 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 bottom of described valve rod 30 is provided with flap 40, and the bottom surface of described valve body 10 contiguous flaps 40 is provided with the flap fitting surface, on described flap fitting surface, also is provided with material mouth 11; Described valve gap 20 bottoms are provided with the cylinder land 50 that is connected with valve body 10, described valve gap 20 is spirally connected by hexagon socket cap head screw 22 with cylinder land 50, described valve gap 20 forms Seal cage with cylinder land 50, and described cylinder land 50 is arranged on the bottom of valve rod 30; Further, the side that described cylinder land 50 contacts with valve rod 30 is provided with stuffing box gland 70, on described stuffing box gland, also is provided with elastic washer, and described elastic washer generally adopts elasticity resistant material teflon to make.Described valve rod 30 passes Seal cage and is connected with valve body 10, the top of described valve rod 30 is provided with cylinder piston 60, described cylinder piston 60 sidewalls and Seal cage inwall closely cooperate, described cylinder piston 60 is connected with valve rod 30 by locking nut 61, described cylinder piston 60 is divided into upper air-pressure chamber 62 and lower air-pressure chamber 63 by the inner space of valve gap 20, the top of described valve rod 30 is connected with the top end cover 80 on valve gap 20, in valve gap Shanghai, be provided with solenoid valve 23, described solenoid valve 23 is connected with Seal cage by valve pipe 24.
In the utility model, the top of described valve gap 20 is provided with lifting bolt 21.
A kind of stop valve in the utility model, draught head band ovable valve stem 30 motions by in upper air-pressure chamber 62 and lower air-pressure chamber 63, make stop valve work.During greater than the air pressure in lower air-pressure chamber 63, upper air-pressure chamber 62 internal air pressures promote cylinder pistons 60 moves downward valve rod when the air pressure in upper air-pressure chamber 62, and the flap 40 that valve rod 30 bottoms connect will be sealed up material mouth 11, and stop valve quits work; During less than the air pressure in lower air-pressure chamber 63, lower air-pressure chamber 63 internal air pressures promote cylinder pistons 60 moves upward valve rod when the air pressure in upper air-pressure chamber 62, and the flap 40 that valve rod 30 bottoms connect will leave material mouth 11, 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 (7)
1. stop valve, it comprises valve body, valve gap and valve rod; It is characterized in that, the bottom of described valve rod is provided with flap, and the bottom surface of the contiguous flap of described valve body is provided with the flap fitting surface; Described valve gap bottom is provided with the cylinder land that is connected with valve body, described cylinder land is arranged on the bottom of valve rod, the top of described valve rod is provided with cylinder piston, described cylinder piston is divided into upper air-pressure chamber and lower air-pressure chamber by the inner space of valve gap, and the top of described valve rod is connected with the top end cover on valve gap.
2. a kind of stop valve according to claim 1, is characterized in that, between described valve gap and cylinder land, forms Seal cage, and described cylinder piston sidewall and Seal cage inwall closely cooperate.
3. a kind of stop valve according to claim 1, is characterized in that, on described valve gap, also is provided with solenoid valve.
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 5, is characterized in that, on described stuffing box gland, also is provided with elastic washer.
7. a kind of stop valve according to claim 1, is characterized in that, on described flap fitting surface, also is provided with the material mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203242357U CN203297634U (en) | 2013-06-06 | 2013-06-06 | Stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203242357U CN203297634U (en) | 2013-06-06 | 2013-06-06 | Stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203297634U true CN203297634U (en) | 2013-11-20 |
Family
ID=49573642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203242357U Expired - Fee Related CN203297634U (en) | 2013-06-06 | 2013-06-06 | Stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203297634U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109667938A (en) * | 2019-02-17 | 2019-04-23 | 吴小戈 | A kind of shut-off valve |
-
2013
- 2013-06-06 CN CN2013203242357U patent/CN203297634U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109667938A (en) * | 2019-02-17 | 2019-04-23 | 吴小戈 | A kind of shut-off valve |
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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 |