CN219549653U - Cock valve with fluoride lining - Google Patents
Cock valve with fluoride lining Download PDFInfo
- Publication number
- CN219549653U CN219549653U CN202320986538.9U CN202320986538U CN219549653U CN 219549653 U CN219549653 U CN 219549653U CN 202320986538 U CN202320986538 U CN 202320986538U CN 219549653 U CN219549653 U CN 219549653U
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- China
- Prior art keywords
- valve
- sealing
- cavity
- cock
- plug
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- Taps Or Cocks (AREA)
- Sliding Valves (AREA)
Abstract
The utility model discloses a fluorine-lined plug valve, which comprises a valve body, a plug and a sealing member, wherein a fluid channel is arranged in the valve body, a valve cavity is arranged on the fluid channel, the plug is rotationally arranged in the valve cavity, the sealing member is arranged between the plug and the valve cavity and is made of polytetrafluoroethylene, a taper hole communicated with a flow passage hole is formed in the top of the sealing member, the plug is matched with the taper hole in shape, and a compression spring is arranged between the bottom of the sealing member and the valve cavity. The valve body and the cock are sealed by the sealing element, the sealing element is made of polytetrafluoroethylene, the sealing between the cock and the sealing element is soft sealing, the processing cost of the sealing surface is low, the taper hole of the sealing element can be tightly attached to the cock under the action of the compression spring, the abrasion of the sealing surface is compensated, and the service life of the valve is prolonged.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to a fluorine lined plug valve.
Background
Plug valves are widely used in fluid delivery lines as a quick-opening and closing straight-through valve. The plug valve comprises a valve body and a plug cock, wherein the plug cock is arranged in a valve cavity of the valve body, and the plug valve is opened and closed through rotation of the plug cock. The sealing between the cock and the valve body is hard sealing, the hard sealing has high processing requirement on the sealing surface, which increases the processing difficulty of the sealing surface, and the sealing surface is easy to wear after the valve is used for a long time, thus the sealing performance is reduced.
Disclosure of Invention
The utility model aims to solve the problems in the prior art, and provides a fluorine lining plug valve which can compensate the abrasion of a sealing surface and has long service life.
The utility model solves the technical problems by adopting the technical scheme that: the utility model provides a fluorine lined plug valve, includes valve body, cock and sealing member, the inside of valve body is equipped with fluid passage, is equipped with the valve pocket on the fluid passage, and the valve pocket internal rotation installs the cock, and the sealing member sets up between cock and valve pocket, and the runner hole that is linked together with fluid passage is all offered to the sealing member both sides, be equipped with on the cock with runner hole complex valve opening, the sealing member adopts polytetrafluoroethylene to make, the top of sealing member is equipped with the taper hole that is linked together with the runner hole, the shape cooperation of cock and taper hole, be equipped with compression spring between the bottom of sealing member and the valve pocket.
Further perfecting, a first cavity is arranged between the cock and the bottom of the taper hole, and lubricating oil is stored in the first cavity.
Further perfecting, a second cavity is arranged between the bottom of the sealing piece and the valve cavity, and an adjusting rod for adjusting the pressure of the compression spring is connected to the bottom of the second cavity in a threaded manner.
Further perfecting, a third cavity is arranged between the top of the sealing element and the valve cavity, and sealing filler is arranged in the third cavity.
Further perfecting, elastic sealing rings are fixedly arranged at the upper end and the lower end of the sealing piece.
The beneficial effects of the utility model are as follows: the valve body and the cock are sealed by the sealing element, the sealing element is made of polytetrafluoroethylene, the sealing between the cock and the sealing element is soft sealing, the processing cost of the sealing surface is low, the taper hole of the sealing element can be tightly attached to the cock under the action of the compression spring, the abrasion of the sealing surface is compensated, and the service life of the valve is prolonged.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
reference numerals illustrate: 1. the valve comprises a valve body, 2, a cock, 3, a sealing element, 4, a runner hole, 5, a valve hole, 6, a taper hole, 7, a compression spring, 8, a first cavity, 9, lubricating oil, 10, a second cavity, 11, an adjusting rod, 12, a third cavity, 13, sealing filler, 14 and an elastic sealing ring.
Detailed Description
The utility model is further described below with reference to the accompanying drawings:
referring to fig. 1: the fluorine lining plug valve comprises a valve body 1, a plug 2 and a sealing element 3, wherein a fluid channel is arranged in the valve body 1, a valve cavity is arranged on the fluid channel, the plug 2 is rotatably arranged in the valve cavity, the sealing element 3 is arranged between the plug 2 and the valve cavity, flow passage holes 4 communicated with the fluid channel are formed in two sides of the sealing element 3, valve holes 5 matched with the flow passage holes 4 are formed in the plug 2, the sealing element 3 is made of polytetrafluoroethylene, sealing between the plug and the sealing element is soft sealing, the processing cost of a sealing surface is low, a taper hole 6 communicated with the flow passage holes 4 is formed in the top of the sealing element 3, the plug 2 is matched with the shape of the taper hole 6, and a compression spring 7 is arranged between the bottom of the sealing element 3 and the valve cavity.
Working principle: the cock 2 rotates to realize the opening and closing of the valve, when the runner hole 4 is aligned with the valve hole 5, the valve is completely opened, and when the runner hole 4 is staggered with the valve hole 5, the valve is completely closed. Under the pressure action of the compression spring 7, the sealing element 3 has a trend of upward movement, the taper hole 6 of the sealing element 3 can be tightly attached to the conical surface of the cock 2, the abrasion of the sealing surface is compensated, and the service life of the valve is prolonged. The sealing element 3 is in circumferential fixed and axial sealing sliding connection with the valve cavity, the shape of the sealing element 3 can be a square cylinder or a round cylinder, and when the sealing element 3 is a square cylinder, rotation can be avoided. When the sealing element 3 is a round cylinder, the side surface can be provided with a vertical guide groove and other structures to limit the rotation of the sealing element.
Preferably, a first cavity 8 is arranged between the cock 2 and the bottom of the taper hole 6, and lubricating oil 9 is stored in the first cavity 8. The lubricating oil 9 reduces friction damping between the cock 2 and the tapered hole 6, and enhances sealing performance between the cock and the tapered hole.
Preferably, a second cavity 10 is arranged between the bottom of the sealing element 3 and the valve cavity, and an adjusting rod 11 for adjusting the pressure of the compression spring 7 is connected with the bottom of the second cavity 10 in a threaded manner. When the adjusting rod 11 is rotated, the adjusting rod can move up and down under the action of threads, the pretightening force of the compression spring 7 is adjusted, the compression amount of the compression spring 7 can be increased when the adjusting rod 11 moves up, the pressure of the contact surface of the cock 2 and the taper hole 6 is increased, and the sealing performance of the valve is improved.
Preferably, a third cavity 12 is arranged between the top of the sealing element 3 and the valve cavity, and a sealing filler 13 is arranged in the third cavity 12. The sealing packing 13 can enhance the sealing performance between the cock and the valve body and avoid leakage on the valve rod.
Preferably, the elastic sealing rings 14 are fixedly arranged at the upper end and the lower end of the sealing member 3, so that the sealing performance between the upper end and the lower end of the sealing member 3 and the valve cavity can be enhanced.
While the utility model has been shown and described with reference to a preferred embodiment, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the scope of the utility model.
Claims (5)
1. The utility model provides a fluorine lining cock (2) valve, includes valve body (1), cock (2) and sealing member (3), the inside of valve body (1) is equipped with fluid passage, is equipped with the valve pocket on the fluid passage, rotates in the valve pocket and installs cock (2), and sealing member (3) set up between cock (2) and valve pocket, and runner hole (4) that are linked together with fluid passage are all seted up to sealing member (3) both sides, be equipped with on cock (2) with runner hole (4) complex valve hole (5), its characterized in that: the sealing piece (3) is made of polytetrafluoroethylene, a taper hole (6) communicated with the runner hole (4) is formed in the top of the sealing piece (3), the cock (2) is matched with the taper hole (6) in shape, and a compression spring (7) is arranged between the bottom of the sealing piece (3) and the valve cavity.
2. A fluorine lined tap (2) valve according to claim 1, characterized in that: a first cavity (8) is formed between the cock (2) and the bottom of the taper hole (6), and lubricating oil (9) is stored in the first cavity (8).
3. A fluorine lined tap (2) valve according to claim 1, characterized in that: a second cavity (10) is arranged between the bottom of the sealing piece (3) and the valve cavity, and an adjusting rod (11) for adjusting the pressure of the compression spring (7) is connected to the bottom of the second cavity (10) in a threaded mode.
4. A fluorine lined tap (2) valve according to claim 1, characterized in that: a third cavity (12) is arranged between the top of the sealing piece (3) and the valve cavity, and sealing filler (13) is arranged in the third cavity (12).
5. A fluorine lined tap (2) valve according to claim 1, characterized in that: elastic sealing rings (14) are fixedly arranged at the upper end and the lower end of the sealing piece (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320986538.9U CN219549653U (en) | 2023-04-25 | 2023-04-25 | Cock valve with fluoride lining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320986538.9U CN219549653U (en) | 2023-04-25 | 2023-04-25 | Cock valve with fluoride lining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219549653U true CN219549653U (en) | 2023-08-18 |
Family
ID=87707310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320986538.9U Active CN219549653U (en) | 2023-04-25 | 2023-04-25 | Cock valve with fluoride lining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219549653U (en) |
-
2023
- 2023-04-25 CN CN202320986538.9U patent/CN219549653U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |