CN202371197U - Flat-plate gate valve - Google Patents
Flat-plate gate valve Download PDFInfo
- Publication number
- CN202371197U CN202371197U CN2011205518343U CN201120551834U CN202371197U CN 202371197 U CN202371197 U CN 202371197U CN 2011205518343 U CN2011205518343 U CN 2011205518343U CN 201120551834 U CN201120551834 U CN 201120551834U CN 202371197 U CN202371197 U CN 202371197U
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- CN
- China
- Prior art keywords
- valve
- wedge
- flashboard
- gate
- plate
- 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 relates to a flat-plate gate valve, which comprises a valve body, a valve seat, a bonnet, a gate plate, a valve stem and an operating mechanism fixedly connected with the valve stem. The gate plate comprises a wedged holder, a left wedge, a right wedge, a left gate plate and a right gate plate. The wedge holder is in slant fit with the wedges. The wedges are provided with the gate plates on the lateral side close to the valve seat. A slant on two sides of the wedged holder are provided with projections at two ends in the vertical direction. The projections and the slant form a concave-sectional slide which is as wide as the wedges. The wedged holder is further provided with a limit block at the bottom. The two edges are provided with limit block containing cavities close to the lower ends. The flat-plate gate valve has the advantage that after the valve is closed, the two edges cannot shift horizontally during moving down, and accordingly horizontal movement of the two gate plates is limited, and even stress and reliable sealing of seal faces of the gate plates when the valve is closed are guaranteed.
Description
Technical field
The utility model relates to a kind of valve, is specifically related to a kind of plate valve.
Background technique
Plate valve is that a kind of closure member is the slide-valve of parallel flashboard.At present, plate valve extensively applies to transfer line such as rock gas, oil, chemical industry, environmental protection, urban duct, burning line, on blowdown system and the vapour storage device, as opening and closing device.
Plate valve generally is made up of valve body, valve seat, valve gap, valve rod flashboard, Sealing and operating device, can be divided into veneer flashboard and Double Disc Flat Gate Valves by structural type.And the flashboard of existing double-flashboard gate valve is made up of wedge-shaped blocks that is connected with valve rod and the flashboard that is positioned at the wedge-shaped blocks both sides, and in the valve opening process, valve rod promotes wedge-shaped blocks earlier; After breaking away from sealing surface of seat, the flashboard that then drives both sides promoting; And in the process of valve closing, after flashboard cut out and puts in place, wedge-shaped blocks continued to descend again; Until stretching, make flashboard and valve base sealing face seal.In the closed procedure of whole pass, the flashboard on wedge-shaped blocks both sides returns the generation Horizontal displacement, makes flashboard sealing surface unbalance stress all around, can not guarantee that two flashboards put in place simultaneously, and it is unreliable to seal, and sealability is bad.
Summary of the invention
To the deficiency that existing technology exists, the purpose of the utility model be to provide a kind of when valve closing stressed evenly, the reliable sealing plate valve of flashboard sealing surface.
For realizing above-mentioned purpose, the utility model provides following technological scheme: a kind of plate valve comprises valve body, valve seat, valve gap, flashboard, valve rod and the operating device that is fixedly connected with valve rod; Described valve seat is fixedly connected in the valve body; Described flashboard is positioned at valve seat, and described valve gap is fixedly connected with valve body, wherein; Flashboard comprises wedge shape frame, left and right sides wedge-shaped blocks and left and right sides flashboard; Described wedge shape frame cooperates with the wedge-shaped blocks inclined-plane, and described wedge-shaped blocks is provided with flashboard near the side of valve seat, it is characterized in that: the two end part of the inclined-plane vertical direction of described wedge shape frame both sides are provided with projection; It is the chute of spill that projection and inclined-plane constitute the cross section; The width of this groove and the width of wedge-shaped blocks are suitable, and described wedge shape frame bottom also is provided with limiting stopper, and described two wedge-shaped blockss also are provided with the limiting stopper holding cavity near the underpart.
Through adopting technique scheme; When valve closing, make two wedge-shaped blockss in the process that moves downward, can not produce the displacement of level; Thereby limited moving on the substantially horizontal of two flashboards, stressed evenly, the reliable sealing plate valve of flashboard sealing surface when guaranteeing valve closing.
The utility model also further is set to: described wedge shape is set up the through hole that is equipped with substantially horizontal; Two wedge-shaped blocks correspondences go out also to be provided with through hole; Be arranged with axle sleeve in the two through hole, two flashboards are fixed in the axial two ends of axle sleeve, and the through-hole diameter on the wedge shape frame is greater than the length of axle sleeve vertical direction.
Through adopting technique scheme, make two ram movement directions consistent, two flashboards put in place simultaneously when guaranteeing valve closing, and sealing is reliable.
The utility model further is set to: described valve body bottom is provided with block, and when the valve closing state, the underpart of two wedge-shaped blockss contacts with the upper-end surface of this block mutually.
Through adopting technique scheme, guarantee that valve continues to move downward, and causes sealing effect bad when closing.
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
Description of drawings
Fig. 1 is the utility model embodiment structural representation;
Fig. 2 is the utility model embodiment valve opening schematic representation;
Fig. 3 is the utility model embodiment valve closing schematic representation.
Embodiment
Like Fig. 1-shown in Figure 3, the utility model discloses a kind of plate valve, comprise valve body 4, valve seat 8, valve gap 3, flashboard 7, valve rod 2 and the operating device 1 that is fixedly connected with valve rod; Described valve seat 8 is fixedly connected in the valve body 4, and described flashboard is positioned at valve seat 4, and described valve gap 3 is fixedly connected with valve body 4; Wherein, flashboard comprises wedge shape frame 5, left and right sides wedge-shaped blocks 6 and left and right sides flashboard 7, and described wedge shape frame 5 cooperates with wedge-shaped blocks 6 inclined-planes; Described wedge-shaped blocks 6 is provided with flashboard 7 near the side of valve seat, and in the utility model specific embodiment, the two end part of the inclined-plane vertical direction of described wedge shape frame 5 both sides are provided with projection; It is the chute of spill that projection and inclined-plane constitute the cross section, and the width of this groove and the width of wedge-shaped blocks are suitable, and described wedge shape frame 5 bottoms also are provided with limiting stopper 51; Described two wedge-shaped blockss also are provided with limiting stopper holding cavity 61 near the underpart; When valve closing, make two wedge-shaped blockss 6 in the process that moves downward, can not produce the displacement of level; Thereby limited moving on the substantially horizontal of two flashboards 7, stressed evenly, the reliable sealing plate valve of flashboard sealing surface when guaranteeing valve closing
In the utility model specific embodiment, be consistent in order to make two flashboards, 7 run durations, so set up the through hole that is equipped with substantially horizontal in wedge shape; Two wedge-shaped blocks correspondences go out also to be provided with through hole; Be arranged with axle sleeve 9, two flashboards 7 in the two through hole and be fixed in axle sleeve 9 axial two ends, the through-hole diameter on the wedge shape frame 5 is greater than the length of axle sleeve 9 vertical directions; Two flashboards put in place simultaneously when having guaranteed valve closing, and sealing is reliable.
Continue to move downward when closing in order to ensure valve, be provided with block 10 in the valve body bottom, when the valve closing state, the underpart of two wedge-shaped blockss 6 contacts the sealing effect that has guaranteed sealing surface mutually with the upper-end surface of this block 10.
Claims (3)
1. a plate valve comprises valve body, valve seat, valve gap, flashboard, valve rod and the operating device that is fixedly connected with valve rod, and described valve seat is fixedly connected in the valve body; Described flashboard is positioned at valve seat, and described valve gap is fixedly connected with valve body, wherein; Flashboard comprises wedge shape frame, left and right sides wedge-shaped blocks and left and right sides flashboard; Described wedge shape frame cooperates with the wedge-shaped blocks inclined-plane, and described wedge-shaped blocks is provided with flashboard near the side of valve seat, it is characterized in that: the two end part of the inclined-plane vertical direction of described wedge shape frame both sides are provided with projection; It is the chute of spill that projection and inclined-plane constitute the cross section; The width of this groove and the width of wedge-shaped blocks are suitable, and described wedge shape frame bottom also is provided with limiting stopper, and described two wedge-shaped blockss also are provided with the limiting stopper holding cavity near the underpart.
2. plate valve according to claim 1; It is characterized in that: described wedge shape is set up the through hole that is equipped with substantially horizontal; Two wedge-shaped blocks correspondences go out also to be provided with through hole; Be arranged with axle sleeve in the two through hole, two flashboards are fixed in the axial two ends of axle sleeve, and the through-hole diameter on the wedge shape frame is greater than the length of axle sleeve vertical direction.
3. plate valve according to claim 1 is characterized in that: described valve body bottom is provided with block, and when the valve closing state, the underpart of two wedge-shaped blockss contacts with the upper-end surface of this block mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205518343U CN202371197U (en) | 2011-12-26 | 2011-12-26 | Flat-plate gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205518343U CN202371197U (en) | 2011-12-26 | 2011-12-26 | Flat-plate gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202371197U true CN202371197U (en) | 2012-08-08 |
Family
ID=46594901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205518343U Expired - Fee Related CN202371197U (en) | 2011-12-26 | 2011-12-26 | Flat-plate gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202371197U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103133710A (en) * | 2013-03-20 | 2013-06-05 | 潘健 | Self-checking type sluice valve |
| CN109210224A (en) * | 2018-10-10 | 2019-01-15 | 中冶南方工程技术有限公司 | Two way seal gate valve |
| CN111043381A (en) * | 2018-10-12 | 2020-04-21 | 中核苏阀科技实业股份有限公司 | Nuclear two-stage DC electric parallel seat gate valve |
| CN114017516A (en) * | 2021-11-16 | 2022-02-08 | 上海阀门厂股份有限公司 | Gate valve forced contraction mechanism |
-
2011
- 2011-12-26 CN CN2011205518343U patent/CN202371197U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103133710A (en) * | 2013-03-20 | 2013-06-05 | 潘健 | Self-checking type sluice valve |
| CN109210224A (en) * | 2018-10-10 | 2019-01-15 | 中冶南方工程技术有限公司 | Two way seal gate valve |
| CN111043381A (en) * | 2018-10-12 | 2020-04-21 | 中核苏阀科技实业股份有限公司 | Nuclear two-stage DC electric parallel seat gate valve |
| CN114017516A (en) * | 2021-11-16 | 2022-02-08 | 上海阀门厂股份有限公司 | Gate valve forced contraction mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120808 Termination date: 20131226 |