CN203670843U - Double-clip type double sealing vacuum flat gate valve - Google Patents
Double-clip type double sealing vacuum flat gate valve Download PDFInfo
- Publication number
- CN203670843U CN203670843U CN201320848263.9U CN201320848263U CN203670843U CN 203670843 U CN203670843 U CN 203670843U CN 201320848263 U CN201320848263 U CN 201320848263U CN 203670843 U CN203670843 U CN 203670843U
- Authority
- CN
- China
- Prior art keywords
- valve
- flashboard
- sealing
- valve seat
- valve rod
- 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 - Lifetime
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 30
- 239000012535 impurity Substances 0.000 claims abstract description 4
- 230000033001 locomotion Effects 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 4
- 125000003003 spiro group Chemical group 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000007547 defect Effects 0.000 claims description 3
- 230000003628 erosive effect Effects 0.000 claims description 2
- 238000005507 spraying Methods 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 201000001371 inclusion conjunctivitis Diseases 0.000 claims 1
- 239000011148 porous material Substances 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 206010044325 trachoma Diseases 0.000 claims 1
- 238000005266 casting Methods 0.000 abstract description 2
- 230000007774 longterm Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 239000000945 filler Substances 0.000 description 2
- 238000005242 forging Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
Images
Landscapes
- Sliding Valves (AREA)
- Details Of Valves (AREA)
Abstract
A double-clip type double sealing vacuum flat gate valve comprises a left valve body, a right valve body, a middle body, a gate plate, a gate plate sealing ring, a valve rod, valve seats, a support, a valve rod nut and the like. The left valve body and the right valve body are connected with the middle body through bolts, and sealing is formed through an O-shaped ring. The left valve body and the right valve body are provided with the valve seats with the surfaces coated with STL, and the valve seats, the left valve body and the right valve body are sealed through O-shaped rings. The gate plate is clamped between the two valve seats, the gate plate is provided with the sealing ring with the surface coated with STL, and an O-shaped ring is embedded into the part between the sealing ring and the gate plate. Reliable soft and hard double sealing is formed when the valve is closed. The upper end of the gate plate is provided with the valve rod, the valve rod is supported by the support fixed on the middle body, the upper end of the support is provided with the valve rod nut matched with the valve rod, and the valve rod is driven in the radial direction through the valve rod nut via T-shaped threads. A stuffing box is arranged between the support and the middle body, and double sealing is formed through a lip type sealing part and an O-shaped ring. The double-clip type double sealing vacuum flat gate valve is not provided with a casting and is short in overall structure. By means of the valve seat back-folding-preventing design, a gap is prevented from being formed behind the valve seat and impurities are prevented from being accumulated. The valve has reliable sealing performance in a vacuum system.
Description
Technical field
This patent relates to a kind of wafer type Double seal vacuum plate valve.Clamp valves has the features such as installing space is little, convenient disassembly.Double-sealing plate sluice valve sealability is reliable, can be widely used in important operating mode.There is the advantages such as moment of torsion is little, product structure is simple.
Background technique
Vacuum valve is a kind of conventional valve, and its working pressure is lower than standard atmospheric pressure.Conventionally evacuated flat panel gate valve generally comprises valve body, valve rod, flashboard, valve gap etc., and valve body adopts casting technique, easily produces the defects such as sand holes.Valve gap is provided with support, stent support valve rod, and be furnished with the Stem Mut supporting with valve rod, and Stem Mut is by hand wheel rotating, and by trapezoidal thread, transmission valve rod drives flashboard to open and close.It is larger that this structure has valve mechanism size, single soft sealing structure is easy to wear in long-term use, the long-term opening state lower valve base of valve reclaims to the inside at spring force and medium power, impurity is easily piled up at the valve seat back side, when flashboard cuts out again, valve seat can not strut smoothly, thereby causes sealing surface squeeze and destroy.Flashboard sealing surface grinding precision is had relatively high expectations, single packing seal easy shortcoming such as inefficacy in long-term switching process.
Model utility content
The object of the invention is to design a kind of evacuated flat panel gate valve reliable, easy for installation that seals.For solving the shortcoming of traditional vacuum plate valve, by the following technical solutions: change single sealing configuration, adopt soft or hard double-sealing, valve seat increases anti-recovery and back dustproof construction, on flashboard, increase seal ring design, thereby reduce the grinding precision of monoblock flashboard, valve entirety adopts forging, improves the defects such as foundry goods sand holes.Clamping structure is reduced to physical dimension greatly, make valve can be applied to the Working pasition that installing space is less, filler position is provided with the design of lip seal and O type circle double-sealing, improves the sealing of valve stem part, reduces the moment of torsion of valve, improves filler position working life.
Accompanying drawing explanation
Fig. 1 .1 is a kind of wafer type Double seal vacuum plate valve plan view of the present invention.
Fig. 1 .2 is a kind of wafer type Double seal vacuum plate valve right elevation of the present invention.
In figure, 1, left and right body; 2, O type circle; 3, positioning screwn; 4, valve seat; 5, spring; 6, flashboard; 7, O type circle retainer ring; 8, screw; 9, O type circle; 10, flashboard seal ring; 11, O type circle; 12, valve rod; 13, bolt and nut; 14, O type circle; 15, O type circle; 16, intermediate; 17, lip seal; 18, support; 19, Stem Mut; 20, handwheel; 21, protective housing; 22, bracket fixing bolt nut.
Fig. 2 is valve seat location valve seat position structure of the present invention and dustproof construction figure.
Fig. 3 is double sealing structure figure of the present invention
Embodiment
As shown in Fig. 1 .1 and Fig. 1 .2, a kind of wafer type Double seal vacuum plate valve that this patent provides comprises left and right body 1, left and right body 1 connects with intermediate 16 use bolt and nuts 13, left and right body and intermediate are forging sheet material, avoid foundry goods sand holes problem, on the body of left and right, have runner hole and pipeline companion flange hole and flange facing, wherein adopt thread tapping with the flange hole of intermediate interference, between left and right body and intermediate, there is O type circle 14 to seal, guarantee left and right body and intermediate connecting end surface reliable sealing.On the valve body of left and right, be processed with valve seat groove, be bumped into valve seat 4, between valve seat and valve seat groove, seal with O type circle 2.On valve seat 4, uniform valve seat positioning spiro pit, screws in positioning screwn 3 in positioning spiro pit, has the corresponding positioning groove that is greater than valve seat positioning hole 1mm on the valve seat groove of left and right valve body.After positioning screwn screws in, the amount of movement of controllable valve seat, when after valve wide open, medium is tried hard to recommend valve seat and is moved to flow direction, positioning screwn is stuck in the locating slot of left and right valve body, the amount of movement of control valve seat, valve seat dustproof construction behind can prevent that impurity from entering in the gap after valve seat, as shown in Figure 2.Clamping flashboard 6 in the middle of two valve seats, flashboard seal ring 10 is installed on flashboard, on flashboard seal ring, with O type circle retainer ring 7 and screw 8, O type circle 9 is fixed on flashboard seal ring, between flashboard seal ring and flashboard, seal by O type circle 11, between flashboard seal ring and flashboard, have spring 5 that sealing force is provided, when valve closing and sealing surface of seat form reliable soft seal pair.The two plane spraying STL that contact with valve seat at flashboard seal ring, form hard sealing pair, together become double sealing structure, as Fig. 3 with soft seal.On flashboard, there is valve rod 12, between valve rod and intermediate, there are lip seal 17 and O type circle 15 to seal, valve rod one end, with trapezoidal thread, is supported by support 18, and support is fixed on intermediate by bracket fixing bolt nut 22, the Stem Mut supporting with valve rod 19 is equipped with in support one end, handwheel 20 is housed on Stem Mut, and rotation hand wheel drives Stem Mut rotation, and Stem Mut and valve rod are by T-shaped screw thread transmission, make valve rod drive flashboard to move up and down, complete the switching motion of valve.Protective housing 21 is installed above handwheel, and when valve rod moves up and down, all the time in protective housing, protection valve rod is not subject to the erosion of external environment.
Claims (8)
1. a wafer type Double seal vacuum plate valve, is characterized in that, comprises
Left and right body, middle body, left and right body and middle body are connected to form valve cavity, left and right body is provided with valve seat, clamping flashboard in the middle of valve seat, and flashboard connects valve rod, valve rod is by stent support, the support the other end has the Stem Mut with valve rod pairing, and Stem Mut is provided with handwheel, hand wheel rotating Stem Mut, Stem Mut and valve rod be by T-shaped screw thread transmission, and valve rod drives the flashboard valve opening and closing that moved up and down.
2. a kind of wafer type Double seal vacuum plate valve according to claim 1, it is characterized in that, on described valve seat, uniform valve seat positioning spiro pit, screws in positioning screwn in positioning spiro pit, has the corresponding positioning groove that is greater than valve seat positioning hole 1mm on the valve seat groove of left and right valve body.After positioning screwn screws in, the amount of movement of controllable valve seat, when after valve wide open, medium is tried hard to recommend valve seat and is moved to flow direction, and positioning screwn is stuck in the locating slot of left and right valve body, the amount of movement of control valve seat
3. a kind of wafer type Double seal vacuum plate valve according to claim 1, is characterized in that, described valve seat is provided with dustproof construction behind, can prevent that impurity from entering in the gap after valve seat.
4. a kind of wafer type Double seal vacuum plate valve according to claim 1, it is characterized in that, flashboard seal ring is installed on described flashboard, on flashboard seal ring, with O type circle retainer ring and screw, O type circle is fixed on flashboard seal ring, between flashboard seal ring and flashboard, have spring that sealing force is provided, when valve closing and sealing surface of seat form reliable soft seal.
5. a kind of wafer type Double seal vacuum plate valve according to claim 3, it is characterized in that, outside the soft seal pair between described flashboard seal ring and flashboard, the two plane spraying STL that contact with valve seat at flashboard seal ring, form hard sealing pair, together become double sealing structure with soft seal.
6. a kind of wafer type Double seal vacuum plate valve according to claim 1, is characterized in that, described left and right body and middle body are forged steel plate structure, stop the defects such as foundry goods trachoma pore.
7. a kind of wafer type Double seal vacuum plate valve according to claim 1, is characterized in that, adopts the sealing configuration of O type circle and lip seal between described valve rod and intermediate.
8. a kind of wafer type Double seal vacuum plate valve according to claim 1, is characterized in that, described handwheel is provided with protective housing, and in the time of valve opening, valve rod moves all the time in protective housing, prevents that valve rod is subject to the erosion of external environment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320848263.9U CN203670843U (en) | 2013-12-19 | 2013-12-19 | Double-clip type double sealing vacuum flat gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320848263.9U CN203670843U (en) | 2013-12-19 | 2013-12-19 | Double-clip type double sealing vacuum flat gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203670843U true CN203670843U (en) | 2014-06-25 |
Family
ID=50967141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320848263.9U Expired - Lifetime CN203670843U (en) | 2013-12-19 | 2013-12-19 | Double-clip type double sealing vacuum flat gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203670843U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197032A (en) * | 2014-08-26 | 2014-12-10 | 自贡自高阀门有限公司 | Flat gate valve for long-distance conveying pipeline |
| CN104315179A (en) * | 2014-10-22 | 2015-01-28 | 昆山嘉科环保设备有限公司 | Manual gate valve |
| CN104776238A (en) * | 2015-03-30 | 2015-07-15 | 济南夫驰科技有限公司 | Pneumatic vacuum gate valve for dust-free operation dry-sweeping truck |
| CN106704613A (en) * | 2016-12-16 | 2017-05-24 | 天津惠博普管道技术有限公司 | Manual sandwich valve |
| CN108547988A (en) * | 2018-04-03 | 2018-09-18 | 云峰科技（北京）有限公司 | A kind of knife gate valve of flashboard week side seal |
| CN109723847A (en) * | 2018-12-29 | 2019-05-07 | 上海凯工阀门股份有限公司 | A kind of knife gate valve |
| CN114323630A (en) * | 2020-10-10 | 2022-04-12 | 中核核电运行管理有限公司 | Special tool for blue oil test of parallel gate valve seat |
-
2013
- 2013-12-19 CN CN201320848263.9U patent/CN203670843U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197032A (en) * | 2014-08-26 | 2014-12-10 | 自贡自高阀门有限公司 | Flat gate valve for long-distance conveying pipeline |
| CN104315179A (en) * | 2014-10-22 | 2015-01-28 | 昆山嘉科环保设备有限公司 | Manual gate valve |
| CN104776238A (en) * | 2015-03-30 | 2015-07-15 | 济南夫驰科技有限公司 | Pneumatic vacuum gate valve for dust-free operation dry-sweeping truck |
| CN104776238B (en) * | 2015-03-30 | 2017-06-06 | 济南夫驰科技有限公司 | Dust-free operation dry type road sweeper Pneumatic vacuum gate valve |
| CN106704613A (en) * | 2016-12-16 | 2017-05-24 | 天津惠博普管道技术有限公司 | Manual sandwich valve |
| CN108547988A (en) * | 2018-04-03 | 2018-09-18 | 云峰科技（北京）有限公司 | A kind of knife gate valve of flashboard week side seal |
| CN109723847A (en) * | 2018-12-29 | 2019-05-07 | 上海凯工阀门股份有限公司 | A kind of knife gate valve |
| CN109723847B (en) * | 2018-12-29 | 2024-05-31 | 上海凯工阀门股份有限公司 | Knife gate valve |
| CN114323630A (en) * | 2020-10-10 | 2022-04-12 | 中核核电运行管理有限公司 | Special tool for blue oil test of parallel gate valve seat |
| CN114323630B (en) * | 2020-10-10 | 2024-01-12 | 中核核电运行管理有限公司 | Special tool for parallel gate valve seat blue oil test |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203670843U (en) | Double-clip type double sealing vacuum flat gate valve | |
| CN105508720A (en) | Corrugated pipe stop valve for photo-thermal electricity generation fused salt | |
| CN104482253A (en) | Combined valve | |
| CN210600231U (en) | Non-rising stem flat valve without flange and bolted connection valve cover structure | |
| CN115199777A (en) | Top-mounted metal hard-sealing half ball valve with bidirectional sealing and online dismounting and maintenance functions | |
| CN205908770U (en) | Pottery double -gate board feed valve | |
| CN202074055U (en) | Three-section type two-way sealed high-pressure butterfly valve | |
| CN209309371U (en) | A kind of portable compensates the floating ball valve of ball wear automatically | |
| CN218971981U (en) | Special long-life turbid circulating water adjusting needle valve | |
| CN216009603U (en) | Pulverized coal shutoff door structure and power plant pulverizing system | |
| CN105065701A (en) | Hard sealing lifting type brake plug valve and control method thereof | |
| CN202118298U (en) | Nuclear power diaphragm valve | |
| CN104373606A (en) | Elastic stop valve and operation method thereof | |
| CN204756130U (en) | Non -rising -stem gate valve with indicator | |
| CN211715798U (en) | High-performance low-torque eccentric butterfly valve | |
| CN203857064U (en) | Bidirectional hard-sealing butterfly valve with movable valve seat | |
| CN202252067U (en) | Ceramic ball valve | |
| CN209622067U (en) | One kind can compensate for formula butterfly valve | |
| CN109899533B (en) | Energy-saving rubber sealing butterfly valve | |
| CN203286015U (en) | Oblique type valve | |
| CN101737507A (en) | Ultrashort type stainless steel sluice valve | |
| CN201896959U (en) | Non rising stem gate valve | |
| CN111237494A (en) | Forced sealing gate valve | |
| CN201502730U (en) | Cock-type mud valve | |
| CN203823089U (en) | Stop valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170515 Address after: 201715 Shanghai city Qingpu District Liantang Town Mao Dian Road No. 285 Patentee after: SHANGHAI RUIKONG VALVE Co.,Ltd. Address before: 751501 natural village of Liu Zhen, Huian Town, Yanchi County, the Ningxia Hui Autonomous Region Patentee before: Liu Wei |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140625 |
|
| CX01 | Expiry of patent term |