CN210372019U - Novel needle valve - Google Patents
Novel needle valve Download PDFInfo
- Publication number
- CN210372019U CN210372019U CN201920747558.4U CN201920747558U CN210372019U CN 210372019 U CN210372019 U CN 210372019U CN 201920747558 U CN201920747558 U CN 201920747558U CN 210372019 U CN210372019 U CN 210372019U
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- Prior art keywords
- valve
- gland
- clack
- rod
- valve rod
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Abstract
The utility model relates to a novel needle valve, the device mainly used wall or open of medium in trades such as thermoelectricity, nuclear power, petrochemical industry, natural gas, warm expert. The valve mainly comprises a valve body, a valve cover, a valve rod, a valve clack, a gland nut, an O-shaped ring for sealing, a handle and the like. The valve cover of the valve is connected and fastened with the valve body through threads; the valve rod and the valve cover are used as a rotary motion pair through threads; the valve rod is connected with the valve clack in a caulking manner, the top of the valve rod is a spherical surface, the inner cavity of the valve clack is a conical surface, and the two surfaces form a universal structure, so that the valve clack can be effectively and tightly attached to the valve seat when the valve is closed through the universal structure, and the sealing property of the valve is improved; all seal through O type circle between gland and valve rod, gland and the gland nut, the part is simplified, simple structure, the dismouting and the maintenance of being convenient for.
Description
Technical Field
The utility model relates to a novel needle valve, the device mainly used wall or open of medium in trades such as thermoelectricity, nuclear power, petrochemical industry, natural gas, warm expert.
Background
The existing needle valve is generally sealed by filling materials, has more sealing parts and is not simplified enough in structure; meanwhile, the sealing surface of the valve clack and the valve seat does not have an automatic adjusting function, so that the leakage phenomenon is caused when the valve clack and the valve seat are closed. The utility model relates to a novel needle valve is sealed all adopts O type circle to seal, and the part is simplified, and simple structure, valve clack possess universal regulatory function when closing, and effectual messenger's valve clack closely laminates with the disk seat and improves the valve leakproofness, prevents that the valve from producing and leaking.
Disclosure of Invention
The utility model aims at designing a novel needle valve, providing a structure more simple, the dismouting and the maintenance of being convenient for effectively solve the valve leakage problem.
The technical scheme of the utility model is to provide a novel needle valve, which mainly comprises a valve body (1), a valve clack (2), a valve rod (3), a valve cover (4), a gland (5), an O-shaped ring (6), a gland nut (7) and a hand wheel (8); the valve rod (3) is connected with the valve clack (2) in a caulking manner, the top of the valve rod is a spherical surface, the inner cavity of the valve clack is a conical surface, and the two surfaces form a universal structure; the valve rod (3) is screwed in the valve cover to rotate up and down, the valve rod (3) and the gland (5) are sealed through an O-shaped ring (6), and the gland (5) and the gland nut (7) are sealed through the O-shaped ring (6); through the connection, the valve clack (2), the valve rod (3), the gland (5), the O-shaped ring (6) and the gland nut (7) are all arranged on the valve cover (4), and the valve cover (4) is connected with the valve body (1) through threads, so that the assembly of key parts of the valve is completed. The hand wheel (8) is connected with the top of the valve rod (3), and the opening and closing of the valve can be completed by rotating the hand wheel.
The utility model has the advantages that: the valve rod is connected with the valve clack in a caulking manner, the top of the valve rod is a spherical surface, the inner cavity of the valve clack is a conical surface, and the two surfaces form a universal structure, so that the valve clack is tightly attached to the valve seat effectively, and the sealing performance of the valve is improved; all seals are completed by O-shaped rings, parts are simplified, the structure is simple, and the disassembly, assembly and maintenance are convenient.
Drawings
FIG. 1 is a novel needle valve
In the figure, 1, a valve body, 2, a valve clack, 3, a valve rod, 4, a valve cover, 5, a gland, 6, an O-shaped ring, 7, a gland nut and 8, a hand wheel
Detailed Description
In the embodiment shown in fig. 1, the valve is welded or otherwise attached to the pipe. When the valve is opened, the hand wheel is rotated to move, the hand wheel drives the valve rod to rotate, the valve rod rotates and moves upwards on the valve cover, the valve clack is driven to move upwards, the valve is opened, and the medium circulates; when the valve is closed, the hand wheel is also rotated to move, the hand wheel drives the valve rod to rotate, the valve rod rotates and moves downwards on the valve cover to drive the valve clack to move downwards, the valve clack is automatically adjusted to form a closed sealing pair with the sealing surface of the valve seat, and the valve is closed to block medium circulation.
Claims (2)
1. A novel needle valve is characterized in that: the valve consists of a valve body (1), a valve clack (2), a valve rod (3), a valve cover (4), a gland (5), an O-shaped ring (6), a gland nut (7) and a hand wheel (8); the valve rod (3) is connected with the valve clack (2) in a caulking manner, the top of the valve rod is a spherical surface, the inner cavity of the valve clack is a conical surface, and the two surfaces form a universal structure; the valve rod (3) is screwed in the valve cover to rotate up and down, the valve rod (3) and the gland (5) are sealed through an O-shaped ring (6), and the gland (5) and the gland nut (7) are sealed through the O-shaped ring (6); the valve clack (2), the valve rod (3), the gland (5), the O-shaped ring (6) and the gland nut (7) are all arranged on the valve cover (4), and the valve cover (4) is connected with the valve body (1) through threads to complete the assembly of key parts of the valve; the hand wheel (8) is connected with the upper top of the valve rod (3).
2. A new needle valve as defined in claim 1, wherein: the valve rod and the gland are sealed through an O-shaped ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920747558.4U CN210372019U (en) | 2019-05-19 | 2019-05-19 | Novel needle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920747558.4U CN210372019U (en) | 2019-05-19 | 2019-05-19 | Novel needle valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210372019U true CN210372019U (en) | 2020-04-21 |
Family
ID=70261359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920747558.4U Active CN210372019U (en) | 2019-05-19 | 2019-05-19 | Novel needle valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210372019U (en) |
-
2019
- 2019-05-19 CN CN201920747558.4U patent/CN210372019U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |