CN2415223Y - Wedge gate valve - Google Patents
Wedge gate valve Download PDFInfo
- Publication number
- CN2415223Y CN2415223Y CN 00219750 CN00219750U CN2415223Y CN 2415223 Y CN2415223 Y CN 2415223Y CN 00219750 CN00219750 CN 00219750 CN 00219750 U CN00219750 U CN 00219750U CN 2415223 Y CN2415223 Y CN 2415223Y
- Authority
- CN
- China
- Prior art keywords
- valve
- flashboard
- screw thread
- valve body
- valve seat
- 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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- Sliding Valves (AREA)
Abstract
The utility model relates to a wedge-shaped gate valve, which comprises a valve body 1, valve seats 2, a gate plate 3, a valve rod 4, a pad 7, a valve cover 5, sealing filling materials 6, etc., wherein, two diameter openings and flanges are arranged on the valve body; the center of the valve body (1) is provided with two thread buckle valve seats 2 and a gate plate 3; both sides of the gate plate are closed with the sealing surfaces of the valve seats; the valve cover is covered on the valve body; the valve rod is fixed with the gate plate; the valve rod 4 penetrates through the valve cover 5; the thread buckle valve seats 2 are screwed in matched screw threads arranged in the valve body; a valve plate of the gate plate is a wedge-shaped gate plate; the inclined plane angle of the gate plate is 2.5-7 DGR; the planes of the thread buckle valve seats are inclined planes and are attached to the inclined plane of the gate plate. The utility model has the advantages of good sealing performance, reliable performance, convenient operation, easy components change of the valve seats, etc., and convenient repair.
Description
The utility model relates to a kind of gate valve, especially the structure of wedge action valve.
Gate valve be use in the valve more a kind of, have a wide range of applications in industries such as central air-conditioner, chemical industry, generating, plumbing, oil, pipeline transportations, wedge action valve is again the important kind of gate valve, existing wedge action valve comprise valve body, valve seat, flashboard, valve rod, pad, valve gap, filler, support, Stem Mut, handwheel, etc. formation, system utilizes the closed gate valve of the both sides sealing face of valve seat on the valve body and flashboard, and this valve can also be regulated flow simultaneously.But the valve seat of existing gate valve generally is to be weldingly fixed on the valve body, owing to be subjected to thermogenetic stress that sealing surface is out of shape, causes valve leak easily; In addition, when valve leak, can't repair, can only integral replacing, user's cost is strengthened.The purpose of this utility model is: provide a kind of reliable performance, the wedge action valve that is easy to repair; It is a kind of simple in structure that the purpose of this utility model also is to provide, the wedge action valve of low cost of manufacture.
The purpose of this utility model is achieved in that a kind of wedge action valve, comprise valve body, valve seat, flashboard, valve rod, pad, valve gap, formations such as stuffing box packing, valve body is provided with two latus rectum mouths and flange, valve body central authorities are provided with two valve seats and a slice flashboard, the sealing surface closure of the both sides of flashboard and valve seat, valve gap covers on valve body, valve rod and flashboard are fixed, valve rod passes valve gap, and is provided with sealing at the valve gap upper valve rod place of passing, and it is characterized in that valve seat is the screw thread valve seat, it is the cirque body that cylindrical is provided with screw thread, its lateral plane and flashboard face are fitted, and valve body is provided with internal thread, in the coupling screw thread that screw thread valve seat screw-in valve body is provided with, the flashboard of gate valve is the wedge shape flashboard, the bevel angle of flashboard is 2.5-7 degree, and the plane of screw thread valve seat also is the inclined-plane, fits with the flashboard inclined-plane.
Characteristics of the present utility model are: good seal, and reliable performance, easy to operate, be easy to change parts such as valve seat, be convenient to repair; It is simple in structure, and manufacture cost is not high yet.Tennis partner's wheel then is a manual operating valve on valve rod, and distribution is moved or hydraulic cylinder then is pneumatic or hydraulic valve, in like manner, also can make motor-operated control valve.The utility model satisfies the related standards of GB12221 or JB96 fully, as withstand voltage, leakage etc.
The utility model is described in further detail below in conjunction with accompanying drawing and by embodiment:
Fig. 1 is the utility model structural representation
As shown in the figure, the roughly the same existing gate valve structure of the installation of valve body 1, valve seat 2, flashboard 3, valve rod 4, pad 7, valve gap 5, stuffing box packing 6, on valve gap, also can be provided with support 8, and Stem Mut 11 etc. is installed in order to fixing valve rod and control and rotation valve rod covering, thereby switch valve.Valve body, valve gap and support etc. are cast with low-carbon cast steel.Two latus rectum mouths 1-2 and flange 1-1 are arranged on the valve body 1, valve body central authorities are provided with two screw thread valve seats 2 and a slice flashboard 3 of symmetry, the sealing surface closure of the both sides of flashboard and valve seat, valve gap 5 covers on valve body, there is pad 6 centre, pad 6 constitutes jointly for Expanded graphite or with stainless steel, also has flange 9 and bolt 10 fixing between valve gap and valve body.Valve rod and flashboard are chimeric fixing, and valve rod passes from valve gap, and the valve gap upper valve rod place of passing is provided with the sealing 6 of Expanded graphite, and the screw thread valve seat is the cirque body that cylindrical is provided with screw thread, and its lateral plane and flashboard face are fitted; Also be provided with the mounting plane 2-1 of screw thread valve seat on the valve body, the screw thread valve seat screws in the valve body, and another plane of screw thread valve seat (ring-type screw thread) and mounting plane 2-1 are also fitted, and can guarantee the precision of gate valve like this.The flashboard of gate valve is the wedge shape flashboard, and the bevel angle of flashboard is that 5 degree are better, and the plane of screw thread valve seat also is the inclined-plane, fits with the flashboard inclined-plane.
Another improvement of the utility model is: a conical surface 4-1 is established in the lower end of valve rod, and the lower end of the valve rod hole of valve gap also is provided with the concave conical surface 5-1 with cone match, can guarantee the sealing of valve gap when the valve rod complete opening.
In order to guarantee working life of the present utility model,, promptly be equipped with one deck Hardmetal materials or Cr13 material on the cut-out sealing surface of valve at the lateral plane of screw thread valve seat and the faying surface of flashboard.The faying surface of flashboard is the same with the lateral plane that needs only with valve seat, also is a toroidal surface.
Claims (4)
1. wedge action valve, comprise valve body (1), valve seat (2), flashboard (3), valve rod (4), pad (7), valve gap (5), stuffing box packing formations such as (6), valve body is provided with two latus rectum mouths and flange, valve body (1) central authorities are provided with two valve seats (2) and a slice flashboard (2), the sealing surface closure of the both sides of flashboard and valve seat, valve gap covers on valve body, valve rod and flashboard are fixed, valve rod (4) passes valve gap (5), and is provided with stuffing box packing at the valve gap upper valve rod place of passing, and it is characterized in that valve seat is screw thread valve seat (2), it is the cirque body that cylindrical is provided with screw thread, its lateral plane and flashboard (3) face is fitted, and valve body is provided with internal thread, in the coupling screw thread that screw thread valve seat screw-in valve body is provided with, the flashboard of gate valve is the wedge shape flashboard, the bevel angle of flashboard is 2.5-7 degree, and the plane of screw thread valve seat also is the inclined-plane, fits with the flashboard inclined-plane.
2. by the described wedge action valve of claim 1, it is characterized in that also being provided with on the valve body mounting plane (2-1) of valve seat, the screw thread valve seat screws in the valve body, and the another side of valve seat and mounting plane (2-1) are fitted.
3. by the described wedge action valve of claim 1, it is characterized in that a conical surface (4-1) is established in the lower end of valve rod, the lower end of the valve rod hole of valve gap also is provided with the concave conical surface (5-1) with cone match.
4. by the described wedge action valve of claim 1, it is characterized in that on the surface of the lateral plane of screw thread valve seat and flashboard face, being equipped with one deck Hardmetal materials or Cr13 material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00219750 CN2415223Y (en) | 2000-03-24 | 2000-03-24 | Wedge gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00219750 CN2415223Y (en) | 2000-03-24 | 2000-03-24 | Wedge gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2415223Y true CN2415223Y (en) | 2001-01-17 |
Family
ID=33584901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00219750 Expired - Fee Related CN2415223Y (en) | 2000-03-24 | 2000-03-24 | Wedge gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2415223Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883750A (en) * | 2013-12-20 | 2014-06-25 | 彭仁田 | Special wellhead anti-explosion gate valve |
| CN103917811A (en) * | 2011-09-30 | 2014-07-09 | 集成设备有限公司 | Expanding gate valve assembly |
| CN104832668A (en) * | 2015-05-05 | 2015-08-12 | 浙江省青田超达铸造有限公司 | Gate valve with environment-friendly filtering function |
-
2000
- 2000-03-24 CN CN 00219750 patent/CN2415223Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103917811A (en) * | 2011-09-30 | 2014-07-09 | 集成设备有限公司 | Expanding gate valve assembly |
| CN103883750A (en) * | 2013-12-20 | 2014-06-25 | 彭仁田 | Special wellhead anti-explosion gate valve |
| CN104832668A (en) * | 2015-05-05 | 2015-08-12 | 浙江省青田超达铸造有限公司 | Gate valve with environment-friendly filtering function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |