CN104565411A - Flat gate valve - Google Patents
Flat gate valve Download PDFInfo
- Publication number
- CN104565411A CN104565411A CN201410791643.2A CN201410791643A CN104565411A CN 104565411 A CN104565411 A CN 104565411A CN 201410791643 A CN201410791643 A CN 201410791643A CN 104565411 A CN104565411 A CN 104565411A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve seat
- plate
- hole
- decompression
- 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.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 3
- 239000007788 liquid Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 238000001125 extrusion Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 230000006837 decompression Effects 0.000 abstract 8
- 238000007789 sealing Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses a flat gate valve capable of decompression. The flat gate valve capable of decompression comprises a valve seat, a gate plate and a valve rod, wherein the valve seat comprises a first valve seat and a second valve seat; the gate plate is tightly matched with the first valve seat and the second valve seat; one end of the valve rod is connected with the gate plate, and the other end of the valve rod is connected with a rotary switch. The flat gate valve capable of decompression is characterized in that a concave cavity and a through hole are formed in the gate plate, a decompression component is arranged in the concave cavity and can stretch out of or get back in the through hole, and the valve rod is connected with the decompression component through a transmission component. According to the technical scheme, a decompression technical effect can be realized by the flat gate valve capable of decompression, thus the operation of opening and closing the flat gate valve capable of decompression can be easily completed by working personnel, and a good function of relieving the extrusion, on a valve plate, of liquid during an opening/closing process and preventing the valve plate from twisting and deforming is obtained.
Description
Technical field
The present invention relates to mechanical manufacturing field, especially relate to a kind of can the plate valve of pressure release.
Background technique
Plate valve be widely used in now product oil pipeline, with in other pipelines such as pipeline of suspended particulate medium.The high leak tightness that plate valve itself has, operation convenience, advantages of simple structure and simple are that it obtains the key of constantly approval.But, when control valve is opened, because the liquid that flows through from upstream line can because the valve plate pressure of opening the difference of height and the liquid that cause valve plate to be subject to be also different, namely the fluid pressure on valve plate top is greater than the fluid pressure of bottom, thus easily causes valve plate to be distorted distortion; And in order to valve plate being promoted or declining, need to use certain power operating switch, now valve plate receives the pressure extrusion of left and right valve seat, although have good sealing, but need more strength when opening simultaneously or close valve plate, cause the increase of working strength.
Summary of the invention
In view of the defect that above-mentioned prior art exists, the object of the invention is to propose a kind of can the plate valve of pressure release.
Object of the present invention will be achieved by the following technical programs: a kind of can the plate valve of pressure release, comprise valve seat, flashboard and valve rod, described valve seat comprises the first valve seat and the second valve seat, described flashboard and closely cooperating between described first valve seat and described second valve seat, described valve rod one end connects described flashboard, the other end connects turn switch, cavity and through hole is provided with in described flashboard, pressure relief component is provided with in described cavity, described pressure relief component can be stretched out or regain from described through hole, and described valve rod is connected with described pressure relief component by transmission part.
Preferably, above-mentioned a kind of can the plate valve of pressure release: described pressure relief component is connected by screw mandrel connecting rod with described valve rod.
Preferably, above-mentioned a kind of can the plate valve of pressure release: described through hole is one, and described pressure relief component can be stretched out and withdrawal from described through hole.
Preferably, above-mentioned a kind of can the plate valve of pressure release: described through hole is two, and described pressure relief component can be stretched out and withdrawal from described through hole.
Preferably, above-mentioned a kind of can the plate valve of pressure release: the side that described through hole is close to described first valve seat and described second valve seat is provided with sealed member.
Preferably, above-mentioned a kind of can the plate valve of pressure release: described pressure relief component is can one-way expansion or bi-directional expansion.
Outstanding effect of the present invention is: 1) by pressure relief component, and to the pressure pressure release of valve plate, the extruding that the pressure that can reduce upstream liquid causes valve plate, ensures the good result of valve plate shape; 2) valve plate is separated with the valve seat of both sides by pressure relief component, and the sealing force between valve plate and valve seat can reduce, and is conducive to staff and carries out switching operations to plate valve easily.
Below just accompanying drawing in conjunction with the embodiments, is described in further detail the specific embodiment of the present invention, is easier to understand, grasp to make technical solution of the present invention.
Accompanying drawing explanation
Fig. 1 is the structural representation of plate valve with position, end of embodiment 1;
Fig. 2 is the structural representation of the valve plate of embodiment 1.
Embodiment
As shown in Figure 1, this enforcement is a kind of can the plate valve of pressure release, and comprise valve seat, flashboard 1 and valve rod 4, said valve seat is divided into the first valve seat 2 and the second valve seat 3 for embodiment 1, flashboard 1 and being closely cooperated by seal ring between the first valve seat 2 and the second valve seat 3.One end of valve rod 4 connects flashboard 1, and the other end connects turn switch, and the rotating band ovable valve stem 4 of rotary switch rotates, thus drives valve plate 1 to rise or decline.
As shown in Figure 2, be provided with cavity and through hole 11 in flashboard 1, be provided with pressure relief component 5 in cavity, pressure relief component 5 is connected with valve rod 4 by leading screw connecting rod.The number of through hole 11 is one, is opened in arbitrary side of valve plate 1.The side that through hole 11 is close to the first valve seat 2 and the second valve seat 3 is provided with sealed member, for keeping the sealing of valve plate 1 entirety and valve seat.The rotarily driving pressure relief component 5 and can stretch out from through hole 11 or regain of valve rod 4, thus lean the first valve seat 2 or the second valve seat 3, can reach the object of pressure release, operator can easily by valve open or closedown.
The difference of embodiment 2 the present embodiment and embodiment 1 is: the through hole 11 on valve plate 1 is two, is distributed in the both sides of valve plate 1 respectively, and now, pressure relief component 5 can be stretched out and withdrawal to connecting a direction from two through holes 11, thus reaches the object of pressure release.
The present invention still has numerous embodiments, all employing equivalents or equivalent transformation and all technological schemes formed, and all drops within protection scope of the present invention.
Claims (6)
1. one kind can the plate valve of pressure release, comprise valve seat, flashboard and valve rod, described valve seat comprises the first valve seat and the second valve seat, described flashboard and closely cooperating between described first valve seat and described second valve seat, described valve rod one end connects described flashboard, the other end connects turn switch, it is characterized in that: in described flashboard, be provided with cavity and through hole, pressure relief component is provided with in described cavity, described pressure relief component can be stretched out or regain from described through hole, and described valve rod is connected with described pressure relief component by transmission part.
2. according to claim 1 a kind of can the plate valve of pressure release, it is characterized in that: described pressure relief component is connected by screw mandrel connecting rod with described valve rod.
3. according to claim 2 a kind of can the plate valve of pressure release, it is characterized in that: described through hole is one, described pressure relief component can be stretched out and withdrawal from described through hole.
4. according to claim 2 a kind of can the plate valve of pressure release, it is characterized in that: described through hole is two, described pressure relief component can be stretched out and withdrawal from described through hole.
5. a kind of according to claim 3 or 4 can the plate valve of pressure release, it is characterized in that: the side that described through hole is close to described first valve seat and described second valve seat is provided with sealed member.
6. according to claim 5 a kind of can the plate valve of pressure release, it is characterized in that: described pressure relief component is for can one-way expansion or bi-directional expansion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410791643.2A CN104565411A (en) | 2014-12-19 | 2014-12-19 | Flat gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410791643.2A CN104565411A (en) | 2014-12-19 | 2014-12-19 | Flat gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104565411A true CN104565411A (en) | 2015-04-29 |
Family
ID=53082159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410791643.2A Pending CN104565411A (en) | 2014-12-19 | 2014-12-19 | Flat gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104565411A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422890A (en) * | 2015-12-17 | 2016-03-23 | 上海诺特飞博燃烧设备有限公司 | Two-step opening-closing type gate valve |
| CN115479137A (en) * | 2022-09-01 | 2022-12-16 | 华封阀门(浙江)有限公司 | A gate valve with the function of reducing the pressure difference on both sides of the valve plate |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7270311B1 (en) * | 2003-07-14 | 2007-09-18 | Brenes Arthur J | Pendulum gate valve |
| CN201526691U (en) * | 2009-06-23 | 2010-07-14 | 汪玉奎 | Self-relief gate valve |
| CN201944316U (en) * | 2011-04-06 | 2011-08-24 | 福建旗胜阀门科技有限公司 | A high temperature and high pressure wedge gate valve |
| WO2012138424A1 (en) * | 2011-04-08 | 2012-10-11 | Cameron International Corporation | Split gate valve |
| CN103574085A (en) * | 2013-10-17 | 2014-02-12 | 挺宇集团有限公司 | Adjustable type pressure relief structure for valve middle cavity |
| CN204477344U (en) * | 2014-12-19 | 2015-07-15 | 成都迅德科技有限公司 | A kind of can the plate valve of pressure release |
-
2014
- 2014-12-19 CN CN201410791643.2A patent/CN104565411A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7270311B1 (en) * | 2003-07-14 | 2007-09-18 | Brenes Arthur J | Pendulum gate valve |
| CN201526691U (en) * | 2009-06-23 | 2010-07-14 | 汪玉奎 | Self-relief gate valve |
| CN201944316U (en) * | 2011-04-06 | 2011-08-24 | 福建旗胜阀门科技有限公司 | A high temperature and high pressure wedge gate valve |
| WO2012138424A1 (en) * | 2011-04-08 | 2012-10-11 | Cameron International Corporation | Split gate valve |
| CN103574085A (en) * | 2013-10-17 | 2014-02-12 | 挺宇集团有限公司 | Adjustable type pressure relief structure for valve middle cavity |
| CN204477344U (en) * | 2014-12-19 | 2015-07-15 | 成都迅德科技有限公司 | A kind of can the plate valve of pressure release |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422890A (en) * | 2015-12-17 | 2016-03-23 | 上海诺特飞博燃烧设备有限公司 | Two-step opening-closing type gate valve |
| CN115479137A (en) * | 2022-09-01 | 2022-12-16 | 华封阀门(浙江)有限公司 | A gate valve with the function of reducing the pressure difference on both sides of the valve plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150429 |
|
| WD01 | Invention patent application deemed withdrawn after publication |