CN219774806U - Prevent rotatory stop valve of valve clack - Google Patents
Prevent rotatory stop valve of valve clack Download PDFInfo
- Publication number
- CN219774806U CN219774806U CN202320731752.XU CN202320731752U CN219774806U CN 219774806 U CN219774806 U CN 219774806U CN 202320731752 U CN202320731752 U CN 202320731752U CN 219774806 U CN219774806 U CN 219774806U
- Authority
- CN
- China
- Prior art keywords
- valve
- clack
- valve clack
- cylindrical pin
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 230000002159 abnormal effect Effects 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 description 5
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The utility model belongs to the field of valve design, and particularly relates to a stop valve for preventing a valve clack from rotating. The valve mainly comprises a valve body (1), a valve clack (2), a cylindrical pin (3), a guide ring (4) and a valve rod (5). The valve clack (2) and the valve rod (5) are connected together through the cylindrical pin (3), and the cylindrical pin (3) effectively limits the rotation of the valve clack (2) around the axis of the valve rod (5). When the valve is opened, a medium force acts on the bottom of the valve clack (2) to help the valve to be opened. When the valve is closed, the bottom of the valve rod (5) is directly contacted with the valve clack (2), and the cylindrical pin (3) is not subjected to the closing force of the valve rod (5) due to the designed gap. The valve with the structure can effectively solve the problem that the valve clack rotates around the valve rod under the action of a medium, effectively avoids abnormal sound generated by the rotation of the valve clack, and causes the damage of valve clack breakage when serious.
Description
Technical Field
The utility model belongs to the field of valve design, and particularly relates to a stop valve. The valve can effectively solve the problem that the valve clack rotates around the valve rod under the medium flushing, and effectively avoids abnormal sound generated by the rotation of the valve clack, and the damage of the valve clack caused by fracture in severe cases.
Background
The shut-off valve is also called a shut-off valve, and belongs to a forced sealing type valve, so that when the valve is closed, pressure must be applied to the valve clack so as to force the sealing surface not to leak. When the medium enters the valve from the lower part of the valve clack, the resistance which is needed to be overcome by the operation force is the friction force of the valve rod and the filler and the thrust generated by the pressure of the medium, and the force for closing the valve is larger than the force for opening the valve.
The opening and closing part of the stop valve is a plug-shaped valve clack, the sealing upper surface is a plane or a sea conical surface, and the valve clack moves linearly along the central line of the valve seat. The movement form of the valve rod also has a lifting rotary rod type which can be used for controlling the flow of various fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like. Thus, a shut-off valve of this type is very suitable for shut-off or regulation and throttling.
The connection mode of the valve clack and the valve rod of the stop valve with the traditional structure is shown in fig. 3 and 4. The valve clack rotates 360 degrees around the valve rod under the action of high-speed scouring force of medium in the opening or closing process, especially in the opening or closing moment. The rotation of the valve clack has various disadvantages, one is that abnormal sound or vibration noise is generated; the second is a friction sealing surface, which reduces the service life of the sealing surface; the third more serious is that the valve clack is subjected to axial force and simultaneously increases shearing stress generated by rotation, so that the valve clack is easy to break, and the valve loses the opening and closing functions.
Disclosure of Invention
In order to solve the defects in the prior art, the utility model aims to provide a stop valve capable of preventing a valve clack from rotating.
The technical scheme of the utility model is as follows: the valve mainly comprises a valve body (1), a valve clack (2), a cylindrical pin (3), a guide ring (4) and a valve rod (5).
Preferably, the valve clack (2) and the valve rod (5) are connected together through a cylindrical pin (3), and the cylindrical pin (3) effectively limits the rotation of the valve clack (2) around the axis of the valve rod (5).
Preferably, after the cylindrical pin (3) is installed, the end part of the pin hole of the valve clack (2) is subjected to caulking treatment, so that the movement of the cylindrical pin (3) is limited.
Preferably, the medium flow direction of the valve body (1) is low, high and low, and when the valve is opened, the medium force acts on the bottom of the valve clack (2) to help the valve to be opened, and the cylindrical pin (3) is not in tension stress.
Preferably, the pin hole phid2 of the valve rod (5) is larger than or equal to phid1+2, and phid1 is the outer diameter of the cylindrical pin (3). Therefore, in the closing process of the valve, the valve rod (5) directly applies the closing force to the valve clack (2), and the cylindrical pin (3) is not stressed by compression.
Preferably, the guide ring (4) is arranged on the valve clack (2) to provide guide for the upward and downward movement of the valve clack, and the guide ring (4) consists of two semicircular rings, so that the installation is convenient.
Drawings
Fig. 1 is an assembly view of a stop valve for preventing rotation of a valve flap, fig. 2 is a sectional view of the valve flap and a valve stem, fig. 3 is a conventional valve flap and valve stem connecting structure, and fig. 4 is a conventional valve flap and valve stem connecting structure.
In figure 1, 1 a valve body, 2 a valve clack, 3 a cylindrical pin, 4 a guide ring and 5 a valve rod
In FIG. 2, 2. Valve clack, 3. Cylindrical pin, 4. Guide ring
In FIG. 3, 2. Valve clack, 5. Valve stem
In FIG. 4, 2. Valve clack, 5. Valve stem, 6. Valve clack gland
Detailed Description
The utility model is described in further detail below in connection with fig. 1 and the detailed implementation.
The technical scheme of the utility model is as follows: the valve mainly comprises a valve body (1), a valve clack (2), a cylindrical pin (3), a guide ring (4) and a valve rod (5).
Preferably, the valve clack (2) and the valve rod (5) are connected together through a cylindrical pin (3), and the cylindrical pin (3) effectively limits the rotation of the valve clack (2) around the axis of the valve rod (5).
Preferably, after the cylindrical pin (3) is installed, the end part of the pin hole of the valve clack (2) is subjected to caulking treatment, so that the movement of the cylindrical pin (3) is limited.
Preferably, the medium flow direction of the valve body (1) is low, high and low, when the valve is opened, a medium force acts below the valve clack (2), the medium force helps the valve clack (2) to be opened, and the cylindrical pin (3) is not in tension stress.
Preferably, the cylindrical pin hole phid2 of the valve rod (5) is larger than or equal to phid1+1, and phid1 is the outer diameter of the cylindrical pin (3). Therefore, in the closing process of the valve, the valve rod (5) directly applies the closing force to the valve clack (2), and the cylindrical pin (3) is not stressed by compression.
Preferably, the guide ring (4) is arranged on the valve clack (2) and consists of two semicircular rings, so that the installation is convenient.
The utility model has the beneficial effects that: a stop valve for preventing the rotation of a valve clack is designed. The valve can effectively solve the problem that the valve clack rotates around the valve rod under the medium flushing, effectively avoids abnormal sound generated by the rotation of the valve clack, and avoids the damage of the valve clack caused by the breakage.
Claims (4)
1. The stop valve for preventing the rotation of the valve clack is characterized by mainly comprising a valve body (1), the valve clack (2), a cylindrical pin (3), a guide ring (4) and a valve rod (5); the valve clack (2) and the valve rod (5) are connected together through the cylindrical pin (3), and the cylindrical pin (3) effectively limits the rotation of the valve clack (2) around the axis of the valve rod (5).
2. The stop valve for preventing the rotation of the valve clack according to claim 1 is characterized in that the medium flow direction of the valve body (1) is low, high and low, when the valve is opened, the medium force acts on the bottom of the valve clack (2) to help the valve to be opened, and the cylindrical pin (3) is not in tension stress.
3. The stop valve for preventing the valve clack from rotating according to claim 1, wherein the pin hole phid2 of the valve rod (5) is larger than or equal to phid1+2, phid1 is the outer diameter of the cylindrical pin (3), and in the closing process of the valve, the closing force is directly applied to the valve clack (2) by the valve rod (5), and the cylindrical pin (3) is not stressed by compression.
4. A stop valve for preventing rotation of a valve clack according to claim 1, characterized in that the guide ring (4) is mounted on the valve clack (2) to provide guide for the up and down movement of the valve clack, the guide ring (4) being composed of two semicircular rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320731752.XU CN219774806U (en) | 2023-04-04 | 2023-04-04 | Prevent rotatory stop valve of valve clack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320731752.XU CN219774806U (en) | 2023-04-04 | 2023-04-04 | Prevent rotatory stop valve of valve clack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219774806U true CN219774806U (en) | 2023-09-29 |
Family
ID=88102492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320731752.XU Active CN219774806U (en) | 2023-04-04 | 2023-04-04 | Prevent rotatory stop valve of valve clack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219774806U (en) |
-
2023
- 2023-04-04 CN CN202320731752.XU patent/CN219774806U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |