CN203717942U - Block valve with piston for sealing - Google Patents

Block valve with piston for sealing Download PDF

Info

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
Application number
CN201320847845.5U
Other languages
Chinese (zh)
Inventor
胡光荣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TONGLING XINCHUANG FLUID TECHNOLOGY Co Ltd
Original Assignee
TONGLING XINCHUANG FLUID TECHNOLOGY Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by TONGLING XINCHUANG FLUID TECHNOLOGY Co Ltd filed Critical TONGLING XINCHUANG FLUID TECHNOLOGY Co Ltd
Priority to CN201320847845.5U priority Critical patent/CN203717942U/en
Application granted granted Critical
Publication of CN203717942U publication Critical patent/CN203717942U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • 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

A kind of block valve of piston seal
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.
CN201320847845.5U 2013-12-17 2013-12-17 Block valve with piston for sealing Expired - Fee Related CN203717942U (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
CN203295155U (en) Vacuum back-suction leak-proof filling head
CN203717940U (en) Pressing valve
CN204003799U (en) There is the oil return filter core of bypass valve
CN203717942U (en) Block valve with piston for sealing
CN203717972U (en) Intercepting valve structure with elastic gasbag
CN203718030U (en) Block valve structure
CN104075003A (en) Ultrahigh pressure one-way valve
CN203718029U (en) Three-way valve structure
CN203979424U (en) A kind of blowdown valve
CN203238022U (en) Smooth flowing funnel
CN203641551U (en) Ball valve with waste water ratio device
CN203584962U (en) Improved structure of buffer oil cylinder device
CN203717937U (en) Anti-backflow block valve
CN203940083U (en) Novel power-assisted cut-off device
CN203717941U (en) Fast block valve
CN204664435U (en) A kind of corrosion resistant stop valve
CN203718051U (en) One-way valve structure
CN203297189U (en) Hydraulic oil cylinder
CN203718112U (en) Quick opening exhaust valve
CN203214944U (en) Double-outlet reducing valve
CN203542916U (en) Cooling water joint for die
CN202510444U (en) Novel integrated control valve block
CN203770775U (en) Straight pipe type throttling valve structure
CN204372227U (en) A kind of New Low Voltage shuttle valve
CN203214898U (en) Sealing structure of bottom valve

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