CN101915319A - Parallel double-supporting plate gate valve - Google Patents
Parallel double-supporting plate gate valve Download PDFInfo
- Publication number
- CN101915319A CN101915319A CN 201010246138 CN201010246138A CN101915319A CN 101915319 A CN101915319 A CN 101915319A CN 201010246138 CN201010246138 CN 201010246138 CN 201010246138 A CN201010246138 A CN 201010246138A CN 101915319 A CN101915319 A CN 101915319A
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- valve
- fagging
- press block
- wedge press
- pair
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Abstract
The invention discloses a parallel double-supporting plate gate valve which comprises a valve body (1), a pair of valve plates (4), a valve rod (6) and a pair of supporting plates (8), wherein a wedge pressure block (5) is arranged between the pair of valve plates, and the pair of valve plates are installed at the two sides of the wedge pressure block; the valve rod is connected with the wedge pressure block; the supporting plates (8) are positioned between the valve plates and the wedge pressure block; the parallel double-supporting plate gate valve is characterized in that the supporting plates are provided with wings (12); the wedge pressure block is provided with a limit block (18) which is provided with sliding grooves (17) matched with the wings; the two sides of the wedge pressure block are provided with bosses (15); the supporting plates have square (10) structures; the bosses are matched with the square structures of the supporting plates; and the supporting plates with the square structures are provided with springs (13) which are contacted with the lower parts of the bosses. No matter being installed and used along any direction, the gate valve can freely run, and the action way reduces the friction between the valve plates and a valve seat, so that a sealing surface is prevented from being scratched; furthermore, under the action of a flowing medium, the valve plates can naturally rotate, so that the sealing surface of the valve plates can be automatically cleaned, and the service life of the valve can be prolonged.
Description
Technical field
The present invention relates to a kind of valve, in particular a kind of valve of bivalve plate.
Background technique
At present, the structure of valve is a lot, and is very high to the requirement of its sealability especially for the valve of oil, rock gas, chemical industry aspect.Along with fast development of information technology and industrial level improve constantly, technical development has proposed new demands such as energy-saving and environmental protection, intelligence to valve.In recent years, the oil of China, rock gas long-distance transport pipes develop very fast, and therefore the demand to valve increases.And gate valve supporting one of the most general valve that is trunk line, branch line and field, first and last station, it is applicable to the operating mode of various parameters, flow resistance is little, do not limit MEDIA FLOW to etc. advantage.Traditional gate valve that China produces at present has plate valve and Wedge gate valve, plate valve generally is installed in the frequent position of operation unit, in operating process, there are the floating valve seat and the sealing surface of valve plate of two band pretightening forces to rub mutually all the time, so sealing life is low, advantage is that actuator stem force is little, opens and closes smooth operation; And advantages such as Wedge gate valve good seal performance, long service life, shortcoming is that the steering force of valve is big, is two times of plate valve, so vibration force is big when opening, can influence on the pipeline other instrument.At present, the frequent parallel double-supporting plate gate valve that uses, comprise valve body, a pair of valve plate, valve rod and a pair of fagging, between a pair of valve plate, be provided with wedge press block, described a pair of valve plate is installed on the wedge press block, described valve rod is connected with described wedge press block, and described fagging is arranged between described valve plate and the wedge press block.The gate valve of this structure, when wedge press block rose, fagging made the tensioner face of valve plate and valve seat unclamp because its deadweight is glided, along with valve rod rises, but Open valve.And this gate valve can only be installed by in the vertical direction, and its fagging could fall by deadweight, and when gate valve was laterally installed, fagging just can't move on wedge press block, thereby also just can't open and close.And because fagging does not have leading role, be easy to break away from wedge press block, also cause fault easily.
Summary of the invention
In view of the deficiency that background technique exists, the technical problem to be solved in the present invention provides a kind of arbitrarily direction the parallel double-supporting plate gate valve that also can normally open and close is installed.
For this reason, the present invention realizes by the following technical solutions: a kind of parallel double-supporting plate gate valve, comprise valve body, a pair of valve plate, valve rod and a pair of fagging, between a pair of valve plate, be provided with wedge press block, described a pair of valve plate is installed in the both sides of wedge press block, described valve rod is connected with described wedge press block, described fagging is arranged between described valve plate and the wedge press block, it is characterized in that described fagging is provided with wing, described wedge press block is provided with limiting stopper, described limiting stopper is provided with the chute with described wing coupling, the both sides of described wedge press block have boss, and described fagging has " mouth " font structure, and described boss cooperates with " mouth " font of described fagging, and on described " mouth " font structure fagging, being provided with spring, described spring contacts with the bottom of described boss; " mouth " font structure mounting spring place of described fagging is provided with spring eye, is provided with the adjustment double-screw bolt in described spring eye; The center that described wedge press block both sides have boss has through hole, has slide-bar on the described flashboard, and described slide-bar places in the described through hole; The top of described fagging is provided with block, and the recess of described block and described fagging constitutes " mouth " font structure; Described limiting stopper and described wedge press block are into a single integrated structure; The face that described wedge press block is provided with limiting stopper is provided with stiffening rib.
Among the present invention, during Open valve, along with the rising of wedge press block, the acting force of the spring that is installed in fagging " mouth " the font structure can break away from fagging from wedge press block, and under the active force of medium, flashboard inwardly shrinks voluntarily, therefore, no matter installs and uses the gate valve of structure of the present invention on what direction, all can move freely, and this manner of execution has alleviated the friction between valve plate and the valve seat, prevents the sealing surface scratch; Its valve plate of the present invention is installed in by slide-bar in the through hole of wedge press block, can freely rotate, so under the effect of flowing medium, valve plate can rotate naturally, thereby can clean the sealing surface of valve plate, the working life of the valve of raising voluntarily.
Description of drawings
Further describe relevant details of the present invention below more in conjunction with the accompanying drawings.
Fig. 1 is overall structure figure of the present invention;
Fig. 2 is the STRUCTURE DECOMPOSITION figure of gate valve of the present invention.
Embodiment
With reference to accompanying drawing, this parallel double-supporting plate gate valve, comprise valve body 1, a pair of valve plate 4, valve rod 6 and a pair of fagging 8, between a pair of valve plate 4, be provided with wedge press block 5, described valve rod 6 is connected with described wedge press block 5, described fagging 8 is arranged between described valve plate 4 and the wedge press block 5, described fagging 8 is provided with wing 12, described wedge press block 5 is provided with limiting stopper 16, described limiting stopper 16 is provided with the chute 17 with described wing 12 couplings, and the both sides of described wedge press block 5 have boss 15, and the center that described wedge press block 5 both sides have boss 15 has through hole 14, has slide-bar 19 on the described valve plate 4, its valve plate 4 is installed in the described through hole 14 by described slide-bar 19, so valve plate 4 can rotate under the active force of medium, and can clean the sealing surface of valve plate 4 voluntarily, the working life of having improved valve; The top of described fagging 8 is provided with block 11, and described block 11 constitutes " mouth " font 10 structures with the recess of described fagging 8; Described boss 15 cooperates with " mouth " font 10 of described fagging 8, that is to say, after boss 15 sizes on the wedge press block 5 are mated with the recess of " mouth " font 10 structures, make boss 15 in the recess of " mouth " font 10 structures, to slide, when fagging 8 slides into certain position, block block 11 by boss 15, make fagging 8 can not skid off fully, be provided with spring 13 on described " mouth " font 10 structure faggings 8, described spring 13 contacts with the bottom of described boss 15; " mouth " font 10 structure mounting spring 13 places of described fagging 8 are provided with spring eye 9, are provided with to adjust double-screw bolt 3 in described spring eye 9; Adjust double-screw bolt 3 by regulating, just can adjust the pressure of 13 pairs of boss 15 of spring, promptly adjust the elastic force of spring 13; Described limiting stopper 16 and described wedge press block 5 are into a single integrated structure, and this sound construction is reliable; The face that described wedge press block 5 is provided with limiting stopper 16 is provided with stiffening rib 18, and the setting of this stiffening rib 18 can improve the rigidity intensity of wedge press block 5, makes and can not be out of shape under the pulling of valve rod 6.
When the present invention works, rotate handwheel 7, make that valve rod 6 is descending, when valve rod 6 is descending, it is descending to drive wedge press block 5 and a pair of valve plate 4, when going downwards to a certain degree, the cushion block 2 that is installed on the valve body 1 just withstands a pair of fagging 8, along with the continuation of valve rod 6 is descending, a pair of fagging 8 just moves on wedge press block 5, wing 12 on the fagging 8 moves in the chute 17 of limiting stopper 16, and the boss 15 on the wedge press block 5 moves with respect to " mouth " font 10 recesses on the fagging 8 are interior, because fagging 8 has the inclined-plane, when wedge press block 5 is slowly descending, a pair of fagging 8 just struts each self-corresponding valve plate 4, and the sealing seat of the sealing surface of valve plate 4 and valve body 1 is sealed and matched, and has so just reached the purpose of gate valve closed amputation flowing medium; When handwheel 7 counter-rotation, valve rod 6 rises, driving wedge press block 5 rises, owing to be provided with spring 13 in " mouth " font 10 recesses of fagging 8, spring 13 just withstands the downside of wedge press block 5 boss 15, make the wing 12 on the fagging 8 move along the chute 17 of limiting stopper 16, simultaneously, boss 15 on the wedge press block 5 makes fagging 8 break away from wedge press blocks 5 also with respect to moving in " mouth " font 10 recesses of fagging 8, when elastic force too hour, can regulate is adjusted double-screw bolt 3, to increase spring force,, make when fagging 8 will break away from wedge press block 5 fully when wedge press block 5 continues to rise, boss 15 on the wedge press block 5 just blocks the block 11 on the fagging 8, make fagging 8 " extension " on boss 15, after fagging 8 breaks away from wedge press block 5, because the active force of flowing medium, make a pair of valve plate 4 inwardly shrink voluntarily, along with the rising of valve rod 6, drive valve plate 4 risings, and reach the purpose of gate opening.This manner of execution of valve plate 4 has alleviated the friction between valve plate 4 and the valve seat, prevents the sealing surface scratch.
Claims (6)
1. parallel double-supporting plate gate valve, comprise valve body (1), a pair of valve plate (4), valve rod (6) and a pair of fagging (8), between a pair of valve plate (4), be provided with wedge press block (5), described a pair of valve plate (4) is installed in the both sides of wedge press block (5), described valve rod (6) is connected with described wedge press block (5), described fagging (8) is arranged between described valve plate (4) and the wedge press block (5), it is characterized in that described fagging (8) is provided with wing (12), described wedge press block (5) is provided with limiting stopper (18), described limiting stopper (18) is provided with the chute (17) with described wing (12) coupling, the both sides of described wedge press block (5) have boss (15), described fagging (8) has " mouth " font (10) structure, described boss (15) cooperates with " mouth " font (10) of described fagging (8), and on described " mouth " font (10) structure fagging (8), being provided with spring (13), described spring (13) contacts with the bottom of described boss (15).
2. parallel double-supporting plate gate valve according to claim 1 is characterized in that " mouth " font (10) structure mounting spring (13) of described fagging locates to be provided with spring eye (9), is provided with to adjust double-screw bolt (3) in described spring (9) hole.
3. parallel double-supporting plate gate valve according to claim 1, it is characterized in that the center that described wedge press block (5) both sides have a boss (15) has through hole (14), have slide-bar (19) on the described flashboard (4), described slide-bar (19) places in the described through hole (14).
4. parallel double-supporting plate gate valve according to claim 1 is characterized in that the top of described fagging (8) is provided with block (11), and described block (11) constitutes " mouth " font (10) structure with the recess of described fagging (8).
5. parallel double-supporting plate gate valve according to claim 1 is characterized in that described limiting stopper (16) and described wedge press block (5) are into a single integrated structure.
6. parallel double-supporting plate gate valve according to claim 1 is characterized in that the face that described wedge press block (5) is provided with limiting stopper (16) is provided with stiffening rib (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102461381A CN101915319B (en) | 2010-08-06 | 2010-08-06 | Parallel double-supporting plate gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102461381A CN101915319B (en) | 2010-08-06 | 2010-08-06 | Parallel double-supporting plate gate valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101915319A true CN101915319A (en) | 2010-12-15 |
| CN101915319B CN101915319B (en) | 2012-04-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102461381A Active CN101915319B (en) | 2010-08-06 | 2010-08-06 | Parallel double-supporting plate gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101915319B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090034A (en) * | 2013-01-18 | 2013-05-08 | 南方阀门制造有限公司 | Wedge-caulking parallel sluice valve |
| CN107013696A (en) * | 2017-06-16 | 2017-08-04 | 洪德隆 | Without abrasion prop open type ball surface gate valve |
| CN107289147A (en) * | 2016-03-31 | 2017-10-24 | 宝山钢铁股份有限公司 | Wedge swelled blank-plate valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB718272A (en) * | 1950-03-23 | 1954-11-10 | Thyssensche Gas Und Wasserwerk | Improvements in and relating to slide-action stop valves |
| CN2240652Y (en) * | 1995-11-01 | 1996-11-20 | 浙江保一阀门厂 | Plain plate gate valve |
| CN2314174Y (en) * | 1997-10-29 | 1999-04-14 | 温州市南方高中压阀门厂 | Bulkhead gate |
| CN201763984U (en) * | 2010-08-06 | 2011-03-16 | 浙江德卡控制阀仪表有限公司 | Parallel double supporting plate gate valve |
-
2010
- 2010-08-06 CN CN2010102461381A patent/CN101915319B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB718272A (en) * | 1950-03-23 | 1954-11-10 | Thyssensche Gas Und Wasserwerk | Improvements in and relating to slide-action stop valves |
| CN2240652Y (en) * | 1995-11-01 | 1996-11-20 | 浙江保一阀门厂 | Plain plate gate valve |
| CN2314174Y (en) * | 1997-10-29 | 1999-04-14 | 温州市南方高中压阀门厂 | Bulkhead gate |
| CN201763984U (en) * | 2010-08-06 | 2011-03-16 | 浙江德卡控制阀仪表有限公司 | Parallel double supporting plate gate valve |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090034A (en) * | 2013-01-18 | 2013-05-08 | 南方阀门制造有限公司 | Wedge-caulking parallel sluice valve |
| CN103090034B (en) * | 2013-01-18 | 2014-11-26 | 南方阀门制造有限公司 | Wedge-caulking parallel sluice valve |
| CN107289147A (en) * | 2016-03-31 | 2017-10-24 | 宝山钢铁股份有限公司 | Wedge swelled blank-plate valve |
| CN107289147B (en) * | 2016-03-31 | 2019-03-05 | 宝山钢铁股份有限公司 | Inclined wedge swelled blank-plate valve |
| CN107013696A (en) * | 2017-06-16 | 2017-08-04 | 洪德隆 | Without abrasion prop open type ball surface gate valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101915319B (en) | 2012-04-18 |
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Address after: 325200 Zhongdong Road, Juyu Town, Wencheng County, Wenzhou City, Zhejiang Province Patentee after: Zhejiang Deca Control Valve Meter Co., Ltd. Address before: 325200 No. 111 Jinfeng Road, Tingtian Town, Ruian City, Wenzhou City, Zhejiang Province Patentee before: Zhejiang Deca Control Valve Meter Co., Ltd. |
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