CN203717942U - Block valve with piston for sealing - Google Patents
Block valve with piston for sealing Download PDFInfo
- Publication number
- CN203717942U CN203717942U CN201320847845.5U CN201320847845U CN203717942U CN 203717942 U CN203717942 U CN 203717942U CN 201320847845 U CN201320847845 U CN 201320847845U CN 203717942 U CN203717942 U CN 203717942U
- Authority
- CN
- China
- Prior art keywords
- valve
- piston
- valve body
- inner tube
- communicated
- 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
Links
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model discloses a block valve with a piston for sealing. The block valve comprises a valve body, wherein one side of the valve body is communicated with a valve inlet, the bottom of the valve body is communicated with a valve outlet, the valve body is provided with a valve cover at the top and an inner pipe at the bottom, the junction of the pipe cavity of the inner pipe and the valve outlet is set to be an inverted cone-shaped part, multiple through holes are formed in the side wall of the upper part of the inner pipe, a valve rod is vertically and slidingly arranged in the valve cover, the bottom end of the valve rod extends into the inner pipe and is connected with the piston, the lower part of the piston is set to be inverted cone-shaped, and a lug is arranged at the bottom end of the piston. The block valve adopts the piston for sealing and has the advantage of stable blocking capability, and the service life can be effectively prolonged.
Description
Technical field
The utility model relates to block valve field, is specially a kind of block valve of piston seal.
Background technique
Block valve claims again cut-off valve, and its effect is the flowing medium that blocks or connect in pipeline.Its portion of blocking of the block valve of prior art adopts rigidity combination seal more, and service time, long sealing effect can reduce, and affects the ability of blocking of block valve.
Model utility content
The purpose of this utility model is to provide a kind of block valve of piston seal, to solve prior art block valve long problem of blocking ability reduction service time.
In order to achieve the above object, the technological scheme that the utility model adopts is:
A kind of block valve of piston seal, include the valve body of open-topped, valve body one side is communicated with into valve port, valve body bottom is communicated with out valve port, valve body open-topped place is provided with valve gap, it is characterized in that: valve body bottom is provided with and the inner tube that goes out valve port and be communicated with, inner tube tube chamber with go out valve port junction and be set to inverted cone portion, inner tube top is stretched in valve body, and inner tube upper portion side wall is provided with multiple through holes, in described valve gap, be vertically slidably fitted with valve rod, described valve rod bottom is stretched in inner tube and valve rod bottom is connected with piston, described piston bottom is set to the inverted cone with inner tube tube chamber inverted cone portion form fit, and piston bottom end is provided with and the bump that goes out valve port inner wall shape and mate.
The block valve of described a kind of piston seal, is characterized in that: described valve gap bottom is connected with pair of guide rods, and piston is slidably mounted on two guide rods.
The utility model is simple in structure, and when conducting, flowing medium enters in valve body from entering valve port, enters out valve port by through hole in inner tube, while blocking, seals out valve port by piston bottom end bump, simultaneously by piston sidepiece sealing through hole, thereby blocks medium.The utility model adopts piston seal effectively to improve working life, has advantages of that the ability of blocking is stable.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
Embodiment
As shown in Figure 1.A kind of block valve of piston seal, include the valve body 1 of open-topped, valve body 1 one sides are communicated with into valve port 2, valve body 1 bottom is communicated with out valve port 3, valve body 1 open-topped place is provided with valve gap 4, valve body 1 bottom is provided with and the inner tube 5 that goes out valve port 3 and be communicated with, inner tube 5 tube chambers with go out valve port 3 junctions and be set to inverted cone portion 6, inner tube 5 tops are stretched in valve body 1, and inner tube 5 upper portion side wall are provided with multiple through holes 7, in valve gap 4, be vertically slidably fitted with valve rod 8, valve rod 8 bottoms are stretched in inner tube 5 and valve rod 8 bottoms are connected with piston 9, piston 9 bottoms 10 are set to the inverted cone with inner tube 5 tube chamber inverted cone portion 6 form fit, and piston 9 bottoms are provided with and the bump 11 that goes out valve port 3 inner wall shape and mate.Valve gap 4 bottoms are connected with pair of guide rods 12, and piston 9 is slidably mounted on two guide rods 12.
Claims (2)
1. the block valve of a piston seal, include the valve body of open-topped, valve body one side is communicated with into valve port, valve body bottom is communicated with out valve port, valve body open-topped place is provided with valve gap, it is characterized in that: valve body bottom is provided with and the inner tube that goes out valve port and be communicated with, inner tube tube chamber with go out valve port junction and be set to inverted cone portion, inner tube top is stretched in valve body, and inner tube upper portion side wall is provided with multiple through holes, in described valve gap, be vertically slidably fitted with valve rod, described valve rod bottom is stretched in inner tube and valve rod bottom is connected with piston, described piston bottom is set to the inverted cone with inner tube tube chamber inverted cone portion form fit, and piston bottom end is provided with and the bump that goes out valve port inner wall shape and mate.
2. the block valve of a kind of piston seal according to claim 1, is characterized in that: described valve gap bottom is connected with pair of guide rods, and piston is slidably mounted on two guide rods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320847845.5U CN203717942U (en) | 2013-12-17 | 2013-12-17 | Block valve with piston for sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320847845.5U CN203717942U (en) | 2013-12-17 | 2013-12-17 | Block valve with piston for sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203717942U true CN203717942U (en) | 2014-07-16 |
Family
ID=51157094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320847845.5U Expired - Fee Related CN203717942U (en) | 2013-12-17 | 2013-12-17 | Block valve with piston for sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203717942U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791500A (en) * | 2015-04-17 | 2015-07-22 | 泰州市自立环保管件设备厂 | Ultrastrong corrosion resisting stainless steel casting valve for ship |
-
2013
- 2013-12-17 CN CN201320847845.5U patent/CN203717942U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791500A (en) * | 2015-04-17 | 2015-07-22 | 泰州市自立环保管件设备厂 | Ultrastrong corrosion resisting stainless steel casting valve for ship |
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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: 20140716 Termination date: 20141217 |
|
| EXPY | Termination of patent right or utility model |