CN215410286U - Wedge type double-gate-plate gate valve - Google Patents
Wedge type double-gate-plate gate valve Download PDFInfo
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- CN215410286U CN215410286U CN202121869834.8U CN202121869834U CN215410286U CN 215410286 U CN215410286 U CN 215410286U CN 202121869834 U CN202121869834 U CN 202121869834U CN 215410286 U CN215410286 U CN 215410286U
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- wedge
- gate plate
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Abstract
The utility model discloses a wedge-type double-gate-plate gate valve, which comprises a valve body, a valve seat, a gate plate and a valve rod, wherein one end part of the valve rod is connected with a driving device, and the other end part of the valve rod is connected with the gate plate, the valve seat is arranged in an inlet and outlet channel of the valve body and is matched with the gate plate.
Description
Technical Field
The utility model relates to the field of valves, in particular to a wedge type double-gate-plate gate valve.
Background
Conventional gate valve structures typically employ either wedge gate or parallel gate configurations. The wedge-type gate plate is divided into a wedge-type rigid gate plate and a wedge-type elastic gate plate, and the wedge-type gate plate or the parallel gate plate can be made into a single gate plate or a double gate plate. The wedge gate valve closing member is mostly made into an elastic flashboard, the elastic flashboard is provided with two sealing surfaces, when the valve is closed, the sealing surface of the flashboard is attached to the sealing surface of the valve seat to form sealing, and the flashboard has the wedge-type characteristic and can forcibly close the valve. The flashboard has elasticity, and when the valve closes tight state, at system operation throughout, because the elastic action of flashboard, the flashboard is not because of the pipeline thermal expansion wedge die.
However, the wedge-type elastic gate is required to have a very high fitting accuracy of the wedge angle β with the valve seat surface, and a slight angle difference causes seal leakage. And the elastic deformation of the gate plate is small, so that the accumulated error in the machining and manufacturing process is often not enough to compensate the leakage of the main sealing pair.
Meanwhile, a gate plate frame is arranged between a left gate plate and a right gate plate of a common double-gate-plate gate valve. The flashboard assembly consists of three parts, namely a left part, a middle part and a right part, and has a complex structure and large overall dimension, so that the valve is heavy as a whole, and the cost is increased. Moreover, the gate frame is often deformed or even broken due to the left and right gate sealing forces and the valve operating force, resulting in leakage or overall failure of the valve.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide a wedge type double-gate-plate gate valve.
In order to achieve the purpose, the utility model provides the following technical scheme:
a wedge type double-gate-plate gate valve comprises a valve body, a valve seat, a gate plate and a valve rod, wherein one end part of the valve rod is connected with a driving device, the other end part of the valve rod is connected with the gate plate, the valve seat is arranged in an inlet and outlet channel of the valve body and matched with the gate plate, and the gate plate comprises a left gate plate and a right gate plate; set up the left side sealed face with valve seat matched with in a side of left flashboard, the another side sets up the hasp platform that sunken hole and two symmetries set up, sets up the right side sealed face with valve seat matched with in a side of right flashboard, and the another side sets up the hasp groove that ejector pin, elastic component and two symmetries set up, and when left flashboard and right flashboard assembly, hasp platform and hasp groove one-to-one mutual hasp are in the same place left flashboard and right flashboard assembly, the one end of ejector pin is arranged in the sunken hole, and another tip and elastic component counterbalance lean on.
The utility model further provides that: the left flashboard is provided with an installation groove, the sunken hole is arranged at the center of the installation groove, and the two hasp platforms are symmetrically arranged at the edges of the installation groove; the left flashboard is provided with a mounting boss matched with the mounting groove, the ejector rod and the elastic piece are arranged at the center of the mounting boss, and the two buckle grooves are symmetrically arranged at the edge of the mounting boss.
The utility model further provides that: the top of left side flashboard and right flashboard all sets up the T-slot, and left flashboard and right flashboard are all fixed on the valve rod through the T-slot.
The utility model further provides that: the both sides of left flashboard and right flashboard all set up the guide part, the valve body sets up the guide rail with guide part looks adaptation.
The utility model further provides that: the elastic piece is a belleville spring.
The utility model has the beneficial effects that: the utility model discloses a wedge-type double gate plate formed by combining a left gate plate and a right gate plate, wherein after the left gate plate and the right gate plate are assembled and enter a valve seat, a top core automatically adjusts a wedge angle beta to make up for the angle difference between the valve seat and the gate plate caused by processing errors, the reserved deformation of an elastic part and the gap between the left gate plate and the right gate plate can offset the additional stress of pipeline thermal expansion on the valve, the compensation effect is stronger than that of a wedge-type elastic single gate plate, and the wedge-type double gate plate has the function of correcting the processing deviation of the angle of the gate plate and the valve seat, so that the processing grinding of the sealing surfaces of the gate plate and the valve seat is simple and easy, and the sealing property is better.
Drawings
FIG. 1 is a cross-sectional view of a wedge-type dual gate valve of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is a front view of the left ram;
FIG. 4 is a cross-sectional view of the left ram;
FIG. 5 is a front view of the right ram;
fig. 6 is a sectional view of the right shutter.
Description of reference numerals: 1. a valve body; 11. an inlet and outlet channel; 2. a valve seat; 3. a shutter plate; 31. A left gate plate; 311. a left sealing face; 312. mounting grooves; 313. a dimple hole; 314. a hasp table; 32. a right gate plate; 321. a right sealing face; 322. mounting a boss; 323. a buckle groove; 33. a top rod; 34. a belleville spring; 4. a valve stem; 5. a guide portion; 6. t-shaped grooves.
Detailed Description
A wedge-type double gate plate gate valve according to the present invention will be described in further detail with reference to fig. 1 to 6.
From fig. 1 and 2, a wedge type double-gate-plate gate valve, including valve body 1, disk seat 2, flashboard 3 and valve rod 4, wherein disk seat 2 sets up and cooperatees with flashboard 3 in the exit passageway 11 of valve body 1, a tip of valve rod 4 is connected with drive arrangement, and drive arrangement enables the valve rod 4 rotatory to the drive reciprocates, the both sides of flashboard 3 all set up guide part 5, valve body 1 sets up the guide rail with guide part 5 looks adaptation, undertakes the guide function when flashboard 3 removes.
Another tip of valve rod 4 is connected with flashboard 3, flashboard 3 includes left flashboard 31 and right flashboard 32, the top of left side flashboard 31 and right flashboard 32 all sets up T-slot 6, left flashboard 31 and right flashboard 32 are all fixed on valve rod 4 through T-slot 6, make left flashboard 31 and right floodboard need not carry out fixed connection through flashboard 3 frame, 3 framves of flashboard are avoided owing to bear about flashboard 32 sealing power and valve operating power, often arouse 3 framves of flashboard and break, cause valve leakage or whole inefficacy, 3 designs of no flashboard, fundamentally has stopped because of 3 sealed leakages that the trouble of flashboard brings, the closure member bite, even the operation is out of order, valve wholeness can be safer, durable use more.
As can be seen from fig. 3 to 4, a left sealing surface 311 which is matched with the valve seat 2 is arranged on one side surface of the left shutter plate 31, a mounting groove 312, a recessed hole 313 and two symmetrically arranged buckling platforms 314 are arranged on the other side surface, the recessed hole 313 is arranged at the center of the mounting groove 312, the recessed hole 313 is arc-shaped, the two buckling platforms 314 are symmetrically arranged at the edge of the mounting groove 312; as can be seen from fig. 5 to 6, a right sealing surface 321 which is matched with the valve seat 2 is arranged on one side surface of the right gate plate 32, a mounting boss 322, a push rod 33, a belleville spring 34 and two symmetrically arranged snap grooves 323 are arranged on the other side surface of the right gate plate, the push rod 33 and an elastic piece are arranged in a circular hole at the center of the mounting boss 322, and the two snap grooves 323 are symmetrically arranged at the edge of the mounting boss 322.
When the left shutter 31 and the right shutter 32 are assembled, the left shutter 31 and the right shutter 32 are reversely opposed to each other, so that the mounting boss 322 of the right shutter 32 is aligned with the mounting groove 312 of the left shutter 31, the left shutter 31 or the right shutter 32 is rotated by 90 °, the mounting boss 322 of the right shutter 32 enters the mounting groove 312 of the left shutter 31, and then the left shutter 31 and the right shutter 32 are assembled by rotating in the opposite direction by 90 °, and the snap platforms 314 and the snap grooves 323 are snapped into each other in one-to-one correspondence.
And (3) opening and closing adjustment of a valve: fig. 1 shows the valve closed position. When the valve is opened, the driving device drives the valve rod 4 to ascend, drives the flashboard 3 to move, moves upwards to the position where the valve rod 4 is sealed and in sealing contact with the valve cover, and the inlet and outlet channel 11 is fully opened. When the valve is closed, the driving device drives the valve rod 4 to descend to push the gate plate 3 to move, the two valve seat 2 sealing surfaces are simultaneously in close contact with the left sealing surface 311 and the right sealing surface 321 to realize sealing, the inlet and outlet channel 11 is completely covered by the gate plate 3, the limiting nut is adjusted at the closing position and the position of the valve rod 4 is locked, so that the gate plate 3 has enough abrasion stroke, and the gate plate 3 is limited not to be excessively closed, and the valve is overloaded or the sealing surfaces are scratched, even the gate plate 3 is wedged to be dead. After the opening and closing adjustment, the driving device is used for operating the valve to complete 3 full-stroke action cycles under pressure, the valve is smoothly opened and closed without jamming, and the sealing is perfect without leakage.
The utility model discloses a wedge-type double gate plate 3 formed by combining a left gate plate 31 and a right gate plate 32, wherein after the left gate plate 31 and the right gate plate 32 are assembled and enter a valve seat 2, a top core automatically adjusts a wedge angle beta to make up the angle difference between the valve seat 2 and the gate plate 3 caused by processing errors, the reserved deformation of an elastic part and the gap between the left gate plate 31 and the right gate plate 32 can counteract the additional stress of pipeline thermal expansion on a valve, the compensation effect is stronger than that of a wedge-type elastic single gate plate 3, and the wedge-type double gate plate has the function of correcting the angle processing deviation of the valve seat 2 of the gate plate 3, so that the processing and grinding of the sealing surface of the gate plate 3 and the valve seat 2 are simple and easy, and the sealing performance is better.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model, and are considered to be within the scope of the utility model.
Claims (5)
1. The utility model provides a wedge type double-gate valve, includes valve body, disk seat, flashboard and valve rod, wherein one end of valve rod is connected with drive arrangement, and another tip is connected with the flashboard, and wherein the disk seat setting cooperatees with the flashboard in the exit passageway of valve body, characterized by: the gate plate comprises a left gate plate and a right gate plate;
one side surface of the left flashboard is provided with a left sealing surface matched with the valve seat, the other side surface is provided with a sunken hole and two symmetrically arranged hasp platforms,
one side surface of the right flashboard is provided with a right sealing surface matched with the valve seat, the other side surface is provided with an ejector rod, an elastic piece and two symmetrically arranged hasp grooves,
when the left flashboard and the right flashboard are assembled, the hasp platforms and the hasp grooves are in one-to-one correspondence with each other, the left flashboard and the right flashboard are assembled together, one end part of the ejector rod is arranged in the concave hole, and the other end part of the ejector rod is abutted against the elastic piece.
2. A wedge-type double gate plate gate valve according to claim 1, wherein: the left flashboard is provided with an installation groove, the sunken hole is arranged at the center of the installation groove, and the two hasp platforms are symmetrically arranged at the edges of the installation groove;
the left flashboard is provided with a mounting boss matched with the mounting groove, the ejector rod and the elastic piece are arranged at the center of the mounting boss, and the two buckle grooves are symmetrically arranged at the edge of the mounting boss.
3. A wedge-type double gate disc gate valve according to claim 1 or 2, wherein: the top of left side flashboard and right flashboard all sets up the T-slot, and left flashboard and right flashboard are all fixed on the valve rod through the T-slot.
4. A wedge-type double gate disc gate valve according to claim 1 or 2, wherein: the both sides of left flashboard and right flashboard all set up the guide part, the valve body sets up the guide rail with guide part looks adaptation.
5. A wedge-type double gate plate gate valve according to claim 1, wherein: the elastic piece is a belleville spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121869834.8U CN215410286U (en) | 2021-08-11 | 2021-08-11 | Wedge type double-gate-plate gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121869834.8U CN215410286U (en) | 2021-08-11 | 2021-08-11 | Wedge type double-gate-plate gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215410286U true CN215410286U (en) | 2022-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121869834.8U Active CN215410286U (en) | 2021-08-11 | 2021-08-11 | Wedge type double-gate-plate gate valve |
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| Country | Link |
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| CN (1) | CN215410286U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114719040A (en) * | 2022-04-11 | 2022-07-08 | 浙江伯特利科技股份有限公司 | Flashboard of support-shrinkage type wedge gate valve and machining method thereof |
-
2021
- 2021-08-11 CN CN202121869834.8U patent/CN215410286U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114719040A (en) * | 2022-04-11 | 2022-07-08 | 浙江伯特利科技股份有限公司 | Flashboard of support-shrinkage type wedge gate valve and machining method thereof |
| CN114719040B (en) * | 2022-04-11 | 2023-06-16 | 浙江伯特利科技股份有限公司 | Gate plate of telescopic wedge gate valve and processing method thereof |
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