CN203286028U - Double-disc parallel seat vacuum isolating valve - Google Patents
Double-disc parallel seat vacuum isolating valve Download PDFInfo
- Publication number
- CN203286028U CN203286028U CN2013203566271U CN201320356627U CN203286028U CN 203286028 U CN203286028 U CN 203286028U CN 2013203566271 U CN2013203566271 U CN 2013203566271U CN 201320356627 U CN201320356627 U CN 201320356627U CN 203286028 U CN203286028 U CN 203286028U
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- China
- Prior art keywords
- flashboard
- valve
- disc
- wedge
- valve rod
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- Expired - Fee Related
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Abstract
The utility model relates to a double-disc parallel seat vacuum isolating valve which comprises a valve body, a valve seat, a valve deck, a valve rod and a wedge disc. The wedge disc is a double-disc formed by a left wedge disc and a right wedge disc which are parallel, the wedge disc is arranged on a wedge disc plate, the valve rod is connected with the wedge disc plate through a T-shaped groove, extension springs are arranged at the bottoms of the left wedge disc and the right wedge disc, and an inclined face which inclines inwards to the axis of the valve rod from top to bottom is arranged between the back face of left wedge disc and the back face of the right wedge disc. The lower end of the valve rod is provided with a wedge-shaped face which is matched with the inclined face between the back face of left wedge disc and the back face of the right wedge disc and inclines outwards deviating from the axis of the valve rod from bottom to top. The lower end of the wedge disc plate is fixedly connected with a limit rod. The wedge-shaped face at the lower end of the valve rod is matched with the inclined face of the middle of the back face of the wedge disc to achieve non-contact friction between the sealing face of the wedge disc and the sealing face of the valve seat in the opening and closing process, and the double-disc parallel seat vacuum isolating valve has the advantages of being reliable in sealing performance, long in service life, suitable for vacuum pipeline systems, and the like.
Description
Technical field
The utility model relates to valve field, particularly about a kind of plate valve.The utility model is applicable to the separating valve of vacuum pipe system.
Background technique
On vacuum pipe, medium differential pressure is little, and Maximum differential pressure is no more than 1 barometric pressure, and seal request is high, and extruding/shrinking type flat sealing face gate can utilize wedge-shaped blocks to realize forced seal, is the comparatively ideal valve of vacuum pipe.it is the Double Disc Flat Gate Valves of ZL201120355432.6 as the patent No., comprise valve rod, valve body and the mechanism of damming that is arranged in valve body, the described mechanism of damming comprises at least two dull and stereotyped flashboards and is arranged on two spreading mechanisms between dull and stereotyped flashboard, spreading mechanism comprises wedge-shaped blocks and at least two pieces that rise, wedge-shaped blocks is connected with valve rod and is provided with the sphenoid surface that departs from stem shaft mind-set outer incline from bottom to top, two pieces that rise are closely set in respectively two dull and stereotyped flashboards and are equipped with the from top to bottom deflection stem shaft heart intilted inclined-plane suitable with sphenoid surface, described wedge-shaped blocks is provided with the voussoir hole, the voussoir hole is provided with axle sleeve, the diameter of wedged hole is greater than the diameter of axle sleeve, axle sleeve is fixedly connected with dull and stereotyped flashboard and the piece that rises, axle sleeve is provided with bolt, bolt is fixedly connected with dull and stereotyped flashboard and axle sleeve, axle sleeve and wedge-shaped blocks are connected with spring, spring makes axle sleeve, wedge-shaped blocks and the piece that rises are connected as a single entity, realize the extruding/shrinking type sealing configuration of wedge-shaped blocks and its both sides flashboard.Its shortcoming is that medium impurity easily deposits in wedged hole, makes between wedge-shaped blocks and its both sides flashboard and loses the support reduction function, and in opening-closing process, there are friction in flashboard and valve seat, and both sealing surfaces produce wearing and tearing, reduces sealability.
Summary of the invention
The purpose of this utility model is the shortcoming that exists for prior art, provides a kind of opening-closing process flashboard and valve seat little without wearing and tearing between friction, both sealing surfaces, the reliable double disc parallel seat vacuum separation valve of sealability.
the technical solution of the utility model comprises valve body, valve seat, valve gap, valve rod, flashboard, flashboard is comprised of left flashboard and right flashboard the double-flashboard that is parallel to each other, be arranged on the flashboard frame, valve rod is connected by T-slot with the flashboard frame, mainly, in the bottom of left flashboard and right flashboard, extension spring is installed, be shaped with and be partial to the intilted inclined-plane of the stem shaft heart from top to bottom in the middle of left flashboard and the right flashboard back side, the valve rod lower end is shaped with the sphenoid surface that departs from stem shaft mind-set outer incline from bottom to top that the inclined-plane with left flashboard and the right flashboard back side cooperatively interacts, flashboard frame lower end is fixedly connected with position-limited lever.
In above technological scheme, fixedly mount block on the flashboard frame, the block lower end is shaped with the circular arc convex shoulder, and this circular arc convex shoulder is inserted into left flashboard and right flashboard radially on disc on made step cutting pattern.
The utility model has the advantages that the sphenoid surface of employing valve rod lower end and the inclined-plane in neutral position, the flashboard back side cooperatively interact, while driving valve, valve rod promotes and makes its sphenoid surface break away from the flashboard inclined-plane, and flashboard shrinks to the valve rod center line under the extension spring effect, and its sealing surface and sealing surface of seat are broken away from; When the pass valve put in place, the valve rod sphenoid surface strutted flashboard and coordinates with the valve seat press seal.Whole opening-closing process flashboard sealing surface and the contactless friction of sealing surface of seat, sealability is reliable, long product lifecycle.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the partial structurtes enlarged view of flashboard in the utility model Fig. 1, flashboard frame.
Embodiment
Double disc parallel seat vacuum separation valve as shown in Figure 1, comprise valve body 1, valve seat 2, valve gap 10, valve rod 7, flashboard 4, flashboard 4 is comprised of left flashboard and right flashboard the double-flashboard that is parallel to each other, be arranged on flashboard frame 3, valve rod 7 is connected by T-slot with flashboard frame 3, and the mobile delay of valve rod 7 drives flashboard frame 3, flashboard 4 moves.Extension spring 14 is installed in bottom at left flashboard and right flashboard, and left flashboard and right flashboard are applied to the pulling force at valve rod 7 centers, as shown in Figure 2.Be shaped with and be partial to valve rod 7 intilted inclined-planes, axle center from top to bottom in the middle of left flashboard and the right flashboard back side, valve rod 7 lower ends are shaped with that inclined-plane with left flashboard and the right flashboard back side cooperatively interacts departs from the outward-dipping sphenoid surface in valve rod 7 axle center from bottom to top, flashboard frame 3 lower ends are fixedly connected with position-limited lever 15, stop flashboard 4 descending.
Fixed installation block 5 on flashboard frame 3, block 5 lower ends are shaped with the circular arc convex shoulder, this circular arc convex shoulder is inserted into left flashboard and right flashboard radially on disc on made step cutting pattern, make left flashboard and right flashboard in block 5 limited ranges in flashboard frame 3 with moving on valve body 1 passage axis direction.
Be provided with O type circle 8 and pad 9 between valve gap 10 and valve body 1, V-type filler 11 is installed in the stuffing hole between valve gap 10 and valve rod 7, and this V-type filler 11, by the up and down media assemblage, arranges spacer ring 12 between the filler of up and down, spacer ring 12 is communicated with grease valve 13, and grease valve 13 is arranged on valve gap 10.
Claims (2)
1. double disc parallel seat vacuum separation valve, comprise valve body (1), valve seat (2), valve gap (10), valve rod (7), flashboard (4), flashboard (4) is comprised of left flashboard and right flashboard the double-flashboard that is parallel to each other, be arranged on flashboard frame (3), valve rod (7) is connected by T-slot with flashboard frame (3), it is characterized in that, in the bottom of left flashboard and right flashboard, extension spring (14) is installed, be shaped with and be partial to intilted inclined-plane, valve rod (7) axle center from top to bottom in the middle of left flashboard and the right flashboard back side, valve rod (7) lower end is shaped with that inclined-plane with left flashboard and the right flashboard back side cooperatively interacts departs from the outward-dipping sphenoid surface in valve rod (7) axle center from bottom to top, flashboard frame (3) lower end is fixedly connected with position-limited lever (15).
2. double disc parallel seat vacuum separation valve according to claim 1, it is characterized in that the upper fixed installation of flashboard frame (3) block (5), block (5) lower end is shaped with the circular arc convex shoulder, and this circular arc convex shoulder is inserted into left flashboard and right flashboard radially on disc on made step cutting pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203566271U CN203286028U (en) | 2013-06-05 | 2013-06-05 | Double-disc parallel seat vacuum isolating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203566271U CN203286028U (en) | 2013-06-05 | 2013-06-05 | Double-disc parallel seat vacuum isolating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203286028U true CN203286028U (en) | 2013-11-13 |
Family
ID=49542390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203566271U Expired - Fee Related CN203286028U (en) | 2013-06-05 | 2013-06-05 | Double-disc parallel seat vacuum isolating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203286028U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883751B (en) * | 2014-04-09 | 2016-03-23 | 金首广 | Three expansion sluice valves |
| CN106168308A (en) * | 2016-08-31 | 2016-11-30 | 潘健 | A kind of with shaft locking anti-sticking slide valve method of switching and switching device |
| CN109654238A (en) * | 2019-01-02 | 2019-04-19 | 盐城宝德冶金设备有限公司 | Coal gas supports valve |
| CN113090781A (en) * | 2021-04-08 | 2021-07-09 | 上正阀门集团有限公司 | Energy storage closing type parallel double-flashboard gate valve |
-
2013
- 2013-06-05 CN CN2013203566271U patent/CN203286028U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883751B (en) * | 2014-04-09 | 2016-03-23 | 金首广 | Three expansion sluice valves |
| CN106168308A (en) * | 2016-08-31 | 2016-11-30 | 潘健 | A kind of with shaft locking anti-sticking slide valve method of switching and switching device |
| CN106168308B (en) * | 2016-08-31 | 2019-05-17 | 潘健 | A kind of anti-sticking slide valve method of switching of same shaft locking and switching device |
| CN109654238A (en) * | 2019-01-02 | 2019-04-19 | 盐城宝德冶金设备有限公司 | Coal gas supports valve |
| CN109654238B (en) * | 2019-01-02 | 2024-02-13 | 盐城宝德冶金设备有限公司 | Gas supporting valve |
| CN113090781A (en) * | 2021-04-08 | 2021-07-09 | 上正阀门集团有限公司 | Energy storage closing type parallel double-flashboard gate valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131113 |