CN220556058U - Valve seat and ball valve - Google Patents
Valve seat and ball valve Download PDFInfo
- Publication number
- CN220556058U CN220556058U CN202321604017.9U CN202321604017U CN220556058U CN 220556058 U CN220556058 U CN 220556058U CN 202321604017 U CN202321604017 U CN 202321604017U CN 220556058 U CN220556058 U CN 220556058U
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- Prior art keywords
- ring
- valve
- sealing
- sealing ring
- ball
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- 238000007789 sealing Methods 0.000 claims abstract description 90
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000004891 communication Methods 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 4
- 230000007774 longterm Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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- Taps Or Cocks (AREA)
Abstract
The utility model provides a valve seat and a ball valve, and belongs to the field of ball valves. The valve seat comprises a supporting ring and a sealing ring, wherein the sealing ring and the supporting ring are concentrically arranged, and an elastic piece is connected between the sealing ring and the supporting ring; the elastic piece is connected between the sealing ring and the supporting ring, and the elastic piece is arranged, so that a buffer gap is formed between the sealing ring and the supporting ring, the slowed down water pressure impact is caused, meanwhile, the elastic piece pushes the sealing ring to be always kept in sealing contact with the surface of the valve ball, the elastic fit is kept even after abrasion, the restoring mechanism of the valve seat is increased, the impact and grinding of the valve seat are effectively slowed down, the internal leakage of the valve is avoided, the sealing performance of the valve seat is improved, and the service life of the valve seat is prolonged.
Description
Technical Field
The utility model relates to the field of ball valves, in particular to a valve seat and a ball valve.
Background
Currently, ball valves are new valves that have been widely used in recent years. Ball valves are classified into soft sealing ball valves and metal hard sealing ball valves. The sealing grade of the soft sealing ball valve is higher than that of the metal hard sealing ball valve. However, the soft sealing ball valve has severe temperature requirements and is not suitable for working conditions with overhigh temperature. Therefore, under high temperature conditions, a metal hard seal ball valve is required, and the sealing performance can reach the same sealing grade as that of a soft seal ball valve.
The valve body can be aged and lose elasticity after long-term use, and the sealing ring is worn, so that the sealing effect cannot be achieved due to contact between the sealing ring and the surface of the valve ball, and water leakage is caused; because of long-term impact of the high-pressure water body and rough surface of the valve seat caused by grinding of the valve ball and the sealing ring, the tightness of the valve seat is finally reduced, and even the valve is internally leaked to cause shutdown failure;
in the actual use process, the operation and maintenance cost of the production device is increased due to the fact that the sealing performance of the valve seat is reduced, even accidents of medium leakage occur, and the operation safety risk of the production device is increased.
Disclosure of Invention
In order to make up for the defects, the utility model provides a valve seat and a ball valve, and aims to solve the problems that the traditional valve seat can age and lose elasticity after long-term use, and the valve body leaks water.
The utility model is realized in the following way:
in a first aspect, an embodiment of the present utility model provides a valve seat, including
The support ring and the sealing ring are arranged concentrically, and an elastic piece is connected between the sealing ring and the support ring.
In an embodiment of the utility model, the elastic member is a stainless steel elastic sheet or a spring, and is used for pushing the sealing ring away from the supporting ring, the diameter of the inner circle of the supporting ring is the same as that of the inner circle of the sealing ring, and a steel ring is embedded in the sealing ring.
In one embodiment of the utility model, a chamfer formed on the outer end surface of the sealing ring forms a joint surface, and the sealing ring is movably and hermetically connected with the supporting ring.
In one embodiment of the utility model, a sealing ring is fixed on the inner end surface of the sealing ring, a containing groove is formed in the inner surface of the supporting ring, and the sealing ring is in sliding sealing contact with the side wall of the containing groove.
In one embodiment of the utility model, the sealing ring comprises a first ring body and a second ring body, and the first ring body and the second ring body are respectively in sliding sealing contact with two side walls of the accommodating groove.
In one embodiment of the utility model, the support ring is fixed with a limit post, the end surface of the seal ring is provided with a limit hole, one end of the limit post is inserted into the limit hole in a sliding way, and the limit post is arranged in the accommodating groove;
in one embodiment of the utility model, the elastic piece is a corrugated pipe, and the corrugated pipe adopts a double-layer structure to play roles in sealing and movable resetting.
In a second aspect, an embodiment of the present utility model further provides a ball valve, including a valve seat as described in any one of the above; a valve body;
the valve body is hollow and provided with a communication cavity, the supporting ring is fixed in the communication cavity, a valve ball is rotatably arranged in the communication cavity, a through hole is formed in the surface of the valve ball, and the sealing ring is in sealing contact with the surface of the valve ball;
in one embodiment of the utility model, a valve rod penetrates through the side wall of the valve body in a rotating mode, the lower end of the valve rod is fixed with the valve ball, a lever is fixed at the upper end of the valve rod, one end of the communication cavity is communicated with the water outlet, and the other end of the communication cavity is communicated with the water inlet.
The beneficial effects of the utility model are as follows: according to the valve seat obtained through the design, the elastic piece is connected between the sealing ring and the supporting ring, the buffer gap is formed between the sealing ring and the supporting ring by arranging the elastic piece, the hydraulic impact is relieved, meanwhile, the elastic piece pushes the sealing ring to keep sealing contact with the surface of the valve ball all the time, elastic bonding is kept even after abrasion, and the restoring mechanism of the valve seat is increased, so that the impact and grinding of the valve seat are effectively relieved, the internal leakage of the valve is avoided, the sealing performance of the valve seat is improved, and the service life of the valve seat is prolonged.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is an exploded view of an embodiment of the present utility model;
fig. 2 is a schematic perspective view of a support ring according to an embodiment of the present utility model;
fig. 3 is a schematic view of a connection structure between a support ring and a seal ring according to an embodiment of the present utility model;
FIG. 4 is a schematic view of a seal ring in a cut-away configuration according to an embodiment of the present utility model;
FIG. 5 is a schematic view of a bellows structure of an elastic member according to an embodiment of the present utility model;
fig. 6 is a schematic perspective view of a valve seat and ball valve connection according to an embodiment of the present utility model.
In the figure: 100. a support ring; 101. a receiving groove; 103. a limit column; 110. an elastic member; 300. a seal ring; 301. a steel ring; 303. a bonding surface; 305. a seal ring; 307. a limiting hole; 500. a valve body; 510. a valve ball; 530. a valve stem; 550. and a lever.
Detailed Description
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
Examples
Referring to fig. 1-5, the present utility model provides a technical solution;
in a first aspect, the valve seat provided by the embodiment of the utility model includes a support ring 100 and a sealing ring 300, wherein the sealing ring 300 is concentrically arranged with the support ring 100, and an elastic member 110 is connected between the sealing ring 300 and the support ring 100;
the elastic element 110 is connected between the sealing ring 300 and the supporting ring 100, and the elastic element 110 is arranged, so that a buffer gap is formed between the sealing ring 300 and the supporting ring 100, the slowed down water pressure impact is caused, meanwhile, the elastic element 110 pushes the sealing ring 300 to keep sealing contact with the surface of the valve ball 510 all the time, even if the elastic element is worn, the elastic element is kept in elastic fit, and a restoring mechanism of the valve seat is increased, so that the impact and grinding of the valve seat are effectively slowed down, the internal leakage of the valve is avoided, the sealing performance of the valve seat is improved, and the service life of the valve seat is prolonged.
In an embodiment of the present utility model, the elastic member 110 is a stainless steel elastic sheet or a spring, and is used for pushing the sealing ring 300 away from the supporting ring 100, the diameter of the inner circle of the supporting ring 100 is the same as that of the inner circle of the sealing ring 300, the sealing ring 300 is embedded with a steel ring 301, and the steel ring 301 is additionally arranged to improve the strength of the sealing ring 300, and simultaneously reduce the possibility of stress deformation of the sealing ring 300.
In one embodiment of the present utility model, the chamfer formed on the outer end surface of the sealing ring 300 forms the bonding surface 303, the sealing ring 300 is movably connected with the supporting ring 100 in a sealing manner, and the bonding surface 303 is used for bonding on the surface of the valve ball 510, so that the bonding contact area is increased, and the sealing effect is further improved.
In an embodiment of the utility model, a sealing ring 305 is fixed on the inner end surface of the sealing ring 300, the inner surface of the supporting ring 100 is provided with the accommodating groove 101, the sealing ring 305 is in sliding sealing contact with the side wall of the accommodating groove 101, and the sealing ring 305 is additionally in sealing contact with the accommodating groove 101, so that the sealing effect is always maintained in the sliding process of the sealing ring 300 relative to the supporting ring 100, and water leakage is prevented.
In one embodiment of the present utility model, the seal ring 305 includes a first ring body and a second ring body, where the first ring body and the second ring body are respectively in sliding sealing contact with two side walls of the accommodating groove 101, and a double-layer sealing structure is provided to improve the sealing effect.
In one embodiment of the utility model, the support ring 100 is fixed with a limit post 103, the end surface of the seal ring 300 is provided with a limit hole 307, one end of the limit post 103 is slidably inserted in the limit hole 307, the limit post 103 is arranged in the accommodating groove 101, and the limit post 103 is arranged for sliding of the seal ring 300 at present, so that the seal ring 300 is prevented from being separated from an original running track;
referring to fig. 5, in an embodiment of the present utility model, the elastic member 110 may be replaced by a bellows, the bellows has a double-layer structure, and the bellows has elasticity, and functions of sealing and movable resetting.
In a second aspect, referring to fig. 6, another embodiment of the present utility model provides a ball valve, including a valve seat according to any one of the above; a valve body 500;
the valve body 500 is provided with a communication cavity in a hollow way, the support ring 100 is fixed in the communication cavity, the valve ball 510 is rotatably arranged in the communication cavity, the surface of the valve ball 510 is provided with a through hole, and the sealing ring 300 is in sealing contact with the surface of the valve ball 510;
in one embodiment of the present utility model, the valve rod 530 is rotatably inserted through the side wall of the valve body 500, the lower end of the valve rod 530 is fixed to the valve ball 510, the lever 550 is fixed to the upper end of the valve rod 530, one end of the communication cavity is communicated with the water outlet, and the other end of the communication cavity is communicated with the water inlet.
The foregoing is an exemplary embodiment of the present disclosure, and the order in which the embodiments of the present disclosure are disclosed is merely for the purpose of description and does not represent the advantages or disadvantages of the embodiments. It should be noted that the above discussion of any of the embodiments is merely exemplary and is not intended to suggest that the scope of the disclosure of embodiments of the utility model is limited to these examples and that various changes and modifications may be made without departing from the scope of the utility model as defined in the appended claims. The functions, steps and/or actions of the method claims in accordance with the disclosed embodiments described herein need not be performed in any particular order. Furthermore, although elements of the disclosed embodiments may be described or claimed in the singular, the plural is contemplated unless limitation to the singular is explicitly stated;
various modifications and variations of the present utility model will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (4)
1. A valve seat, comprising
A support ring (100);
the sealing ring (300) is concentrically arranged with the supporting ring (100), and an elastic piece (110) is connected between the sealing ring (300) and the supporting ring (100);
the elastic piece (110) is a stainless steel spring piece and is used for pushing the sealing ring (300) to be far away from the supporting ring (100), the diameter of the inner circle of the supporting ring (100) is the same as that of the inner circle of the sealing ring (300), and the steel ring (301) is embedded in the sealing ring (300);
the chamfer formed on the outer end surface of the sealing ring (300) forms a joint surface (303), and the sealing ring (300) is movably connected with the supporting ring (100) in a sealing manner;
a sealing ring (305) is fixed on the inner end surface of the sealing ring (300), an accommodating groove (101) is formed in the inner surface of the supporting ring (100), and the sealing ring (305) is in sliding sealing contact with the side wall of the accommodating groove (101);
the sealing ring (305) comprises a first ring body and a second ring body, and the first ring body and the second ring body are respectively in sliding sealing contact with two side walls of the accommodating groove (101).
2. A valve seat according to claim 1, wherein the support ring (100) is fixed with a limit post (103), a limit hole (307) is formed in the end surface of the seal ring (300), one end of the limit post (103) is slidably inserted into the limit hole (307), and the limit post (103) is arranged in the accommodating groove (101);
the elastic piece (110) is a corrugated pipe, and the corrugated pipe adopts a double-layer structure to play roles in sealing and movable resetting.
3. A ball valve, comprising
A valve seat as claimed in any one of claims 1 to 2; a valve body (500);
the valve body (500) is hollow and is provided with a communication cavity, the support ring (100) is fixed in the communication cavity, the valve ball (510) is rotatably installed in the communication cavity, a through hole is formed in the surface of the valve ball (510), and the sealing ring (300) is in sealing contact with the surface of the valve ball (510).
4. A ball valve according to claim 3, wherein a valve rod (530) is rotatably penetrated through the side wall of the valve body (500), the lower end of the valve rod (530) is fixed with the valve ball (510), a lever (550) is fixed at the upper end of the valve rod (530), one end of the communicating cavity is communicated with the water outlet, and the other end of the communicating cavity is communicated with the water inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321604017.9U CN220556058U (en) | 2023-06-25 | 2023-06-25 | Valve seat and ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321604017.9U CN220556058U (en) | 2023-06-25 | 2023-06-25 | Valve seat and ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220556058U true CN220556058U (en) | 2024-03-05 |
Family
ID=90051807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321604017.9U Active CN220556058U (en) | 2023-06-25 | 2023-06-25 | Valve seat and ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220556058U (en) |
-
2023
- 2023-06-25 CN CN202321604017.9U patent/CN220556058U/en active Active
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| GR01 | Patent grant |