CN209100725U - A kind of valve seat and valve body assembling structure - Google Patents
A kind of valve seat and valve body assembling structure Download PDFInfo
- Publication number
- CN209100725U CN209100725U CN201821467001.7U CN201821467001U CN209100725U CN 209100725 U CN209100725 U CN 209100725U CN 201821467001 U CN201821467001 U CN 201821467001U CN 209100725 U CN209100725 U CN 209100725U
- Authority
- CN
- China
- Prior art keywords
- valve seat
- valve
- convex platform
- valve body
- annular convex
- 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.)
- Active
Links
Landscapes
- Lift Valve (AREA)
Abstract
The utility model relates to a kind of valve seats and valve body assembling structure.Including valve body and valve seat, the valve interior surface is equipped with annular convex platform, the valve seat, which is located in annular convex platform and is formed with annular convex platform, to be interference fitted, annular convex platform inner surface rear portion is equipped with stop collar, valve seat outer surface rear portion is equipped with the ring-shaped step matched with stop collar, the valve seat outer surface is equipped with an annular groove, the bottom of annular groove is uniformly provided with several gas holes, the gas hole is communicated with valve seat interior surface, air inlet is offered on the valve body, the air inlet is communicated through annular convex platform and with annular groove, and the air inlet is equipped with suction nozzle.The utility model structure is simple, easy to process, and valve seat replacement is convenient and efficient, can blow down residue on sealing surface, improves sealing effect.
Description
Technical field
The utility model relates to a kind of valve seats and valve body assembling structure.
Background technique
Butterfly valve is called flap valve, is a kind of simple regulating valve of structure, can be used for the switch control of low pressure pipeline medium
Butterfly valve refers to that closure member (flap or butterfly plate) is disk, and a kind of valve of open and close is reached around valve shaft rotation.Valve can
For controlling the various types such as empty gas and water, steam, various corrosive medias, mud, oil product, liquid metal and radiating medium
The flowing of fluid.Cutting and throttling action are mainly played on pipeline.Butterfly valve opening and closing element is a discoidal butterfly plate, in valve body
Axis around its own rotates, to achieve the purpose that opening and closing or adjusting.
Ball valve (ball valve), the valve that opening and closing element (sphere) is driven by valve rod, and rotated around ball valve axis
Door.Also it can be used for the adjusting and control of fluid, wherein the metal valve of sealing V-type ball valve its V-type core and pile-up welding hard alloy firmly
There is very strong shearing force, the medium especially suitable for fibre-bearing, small solid pellet etc. between seat.And multi-pass ball valve is in pipeline
On not only can flexibly control the interflow of medium, shunt and the switching of flow direction, while any channel can also be closed and make other two
Channel is connected.This class valve should be generally horizontally mounted in the duct.
No matter butterfly valve or ball valve, there are also valve body and valve seat, traditional assembly method of valve body and valve seat generally uses two
Kind method, first method are welded, and are welded to sealing surface shape in valve seal surface build-up welding stainless steel layer or stainless steel coil
At valve seat, it is then worked into the size and roughness of design requirement.Since valve body material is cast iron, including plain cast iron and ball milling
Cast iron, welding performance is poor, needs stringent welding procedure and welder technology, and easily cracked, causes sealing leak, shadow
Ring product quality and service life.Second method is mechanically fixed, and stainless steel valve seat is fixed on valve body by mechanical method,
Valve seat is fixed on valve body using screw, seat material is austenitic stainless steel, and end face screw hole difficulty of processing is big, production effect
Rate is lower.And in long-time use process, valve seat interior surface and sealing ring outer surface residue easy to form, and residue will affect
The sealing effect of entire valve.
Utility model content
In view of the foregoing drawbacks, the purpose of this utility model is to provide a kind of structure is simple, easy to process, valve seat replacement side
Just quick, valve seat interior surface can be blown down and seal the residue of ring outer surface, a kind of valve seat and valve body for improving sealing effect fill
Distribution structure.
Thus the technical scheme adopted by the utility model is
Including valve body and valve seat, the valve interior surface is equipped with annular convex platform, the valve seat be located at annular convex platform it is interior and with
Annular convex platform forms interference fit, and annular convex platform inner surface rear portion is equipped with stop collar, and valve seat outer surface rear portion is equipped with and limit
The ring-shaped step that position ring matches, the valve seat outer surface are equipped with an annular groove, and the bottom of annular groove is uniformly provided with several
Gas hole, the gas hole are communicated with valve seat interior surface, and air inlet is offered on the valve body, and the air inlet runs through convex annular
Platform is simultaneously communicated with annular groove, and the air inlet is equipped with suction nozzle.
As a further improvement of the above technical scheme, the valve seat front end face is concordant with annular convex platform front end face.
As a further improvement of the above technical scheme, the first O is equipped between the stop collar front end face and ring-shaped step
Type sealing ring.
As a further improvement of the above technical scheme, it is equipped between the inner surface and valve seat of the annular convex platform and is located at ring
Second O-ring seal of connected in star two sides.
As a further improvement of the above technical scheme, the inner surface of the valve seat is equipped with hard alloy layer.
The utility model has the advantages that:
The utility model structure is simple, and the annular convex platform of valve seat and valve body is assembled using interference fit type, valve seat processing
It is convenient, valve seat when something goes wrong, replace it is convenient and efficient, by opening up an annular groove, annular groove bottom in valve seat outer surface
Portion opens up several gas holes communicated with valve seat interior surface, opens up the air inlet communicated with annular groove on valve body, can be effective
It blows down valve seat interior surface and seals the residue of ring outer surface, to improve sealing effect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
In figure 1 be valve body, 2 be valve seat, 3 be annular convex platform, 4 be stop collar, 5 be annular groove, 6 be gas hole, 7 be into
Stomata, 8 be suction nozzle, 9 be the first O-ring seal, 10 be the second O-ring seal.
Specific embodiment
A kind of valve seat and valve body assembling structure, including valve body 1 and valve seat 2,1 inner surface of valve body are equipped with annular convex platform 3,
The valve seat 2, which is located in annular convex platform 3 and is formed with annular convex platform 3, to be interference fitted, and 3 inner surface rear portion of annular convex platform is equipped with limit
Ring 4, the 2 outer surface rear portion of valve seat are equipped with the ring-shaped step matched with stop collar 4, and 2 outer surface of valve seat is equipped with a ring
Connected in star 5, the bottom of annular groove 5 are uniformly provided with several gas holes 6, and the gas hole 6 is communicated with 2 inner surface of valve seat, described
Air inlet 7 is offered on valve body 1, the air inlet 7 is communicated through annular convex platform 3 and with annular groove 5, on the air inlet 7
Equipped with suction nozzle 8.
As a further improvement of the above technical scheme, 2 front end face of valve seat is concordant with 3 front end face of annular convex platform.
As a further improvement of the above technical scheme, first is equipped between 4 front end face of stop collar and ring-shaped step 3
O-ring seal 9.
As a further improvement of the above technical scheme, it is equipped with and is located between the inner surface and valve seat 2 of the annular convex platform 3
Second O-ring seal 10 of 5 two sides of annular groove.
As a further improvement of the above technical scheme, the inner surface of the valve seat 2 is equipped with hard alloy layer.
In use, it ventilates to suction nozzle, gas enters inside annular groove, by gas hole in valve seat
Surface and sealing ring outer surface persistently purge, and the residue on surface are removed, to improve sealing effect.
It is emphasized that: the above description is only the embodiments of the present invention, is not intended to limit the utility model
The scope of the patents, equivalent structure or equivalent flow shift made by using the description of the utility model and the drawings, or it is straight
It connects or is used in other related technical areas indirectly, be also included in the patent protection scope of the utility model.
Claims (5)
1. a kind of valve seat and valve body assembling structure, which is characterized in that including valve body and valve seat, the valve interior surface is equipped with annular
Boss, the valve seat, which is located in annular convex platform and is formed with annular convex platform, to be interference fitted, and annular convex platform inner surface rear portion is equipped with limit
Position ring, valve seat outer surface rear portion are equipped with the ring-shaped step matched with stop collar, and the valve seat outer surface is equipped with an annular
Groove, the bottom of annular groove are uniformly provided with several gas holes, and the gas hole is communicated with valve seat interior surface, open on the valve body
Equipped with air inlet, the air inlet is communicated through annular convex platform and with annular groove, and the air inlet is equipped with suction nozzle.
2. a kind of valve seat according to claim 1 and valve body assembling structure, which is characterized in that the valve seat front end face and ring
Shape boss front end face is concordant.
3. a kind of valve seat according to claim 1 and valve body assembling structure, which is characterized in that the stop collar front end face with
The first O-ring seal is equipped between ring-shaped step.
4. a kind of valve seat according to claim 1 and valve body assembling structure, which is characterized in that the interior table of the annular convex platform
The second O-ring seal positioned at annular groove two sides is equipped between face and valve seat.
5. a kind of valve seat according to claim 1 and valve body assembling structure, which is characterized in that the inner surface of the valve seat is set
There is hard alloy layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821467001.7U CN209100725U (en) | 2018-09-08 | 2018-09-08 | A kind of valve seat and valve body assembling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821467001.7U CN209100725U (en) | 2018-09-08 | 2018-09-08 | A kind of valve seat and valve body assembling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209100725U true CN209100725U (en) | 2019-07-12 |
Family
ID=67152230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821467001.7U Active CN209100725U (en) | 2018-09-08 | 2018-09-08 | A kind of valve seat and valve body assembling structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209100725U (en) |
-
2018
- 2018-09-08 CN CN201821467001.7U patent/CN209100725U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209100725U (en) | A kind of valve seat and valve body assembling structure | |
| WO2020038008A1 (en) | High-performance nano-coated corrugated-tube special chlorine gas valve | |
| CN202195103U (en) | Ball valve of metal hard sealing body valve seat | |
| CN205190883U (en) | High pressure plate valve | |
| CN209084102U (en) | A kind of valve seat and joint structure connecting valve of upper dress formula valve | |
| CN209100689U (en) | A kind of deformation spherical surface eccentric valve | |
| CN208734921U (en) | A kind of ball valve preventing sealing High Pressure Difference and high leakage | |
| CN210623581U (en) | Stop valve | |
| CN209164640U (en) | A kind of all-welded ball valve of detachable valve seat | |
| CN216200627U (en) | Adjusting butterfly valve | |
| CN201502730U (en) | Cock-type mud valve | |
| CN206429693U (en) | Floating ball valve is filled in one kind | |
| CN207999523U (en) | A kind of wear resistant three-way fixing ball valve | |
| CN218177979U (en) | High-pressure hydrogen ball valve | |
| CN201651333U (en) | Special valve for chlorine gas | |
| CN214248334U (en) | Butterfly valve sealing structure | |
| CN213236152U (en) | Low-noise ball valve | |
| CN204437337U (en) | Four-way with special nozzle dusts ball valve | |
| CN216242429U (en) | Low-noise high-pressure adjusting ball valve | |
| CN215568022U (en) | Stop valve of anti-cavitation | |
| CN218207858U (en) | Butterfly valve with high sealing performance | |
| CN213929479U (en) | Hard seal butterfly valve structure | |
| CN216768415U (en) | Online quick repair type gate valve | |
| CN216279440U (en) | High-performance fireproof hard sealing butterfly valve | |
| CN204533555U (en) | A kind of valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |