CN217108303U

CN217108303U - High-low temperature self-adaptation ball valve disk seat

Info

Publication number: CN217108303U
Application number: CN202220801918.6U
Authority: CN
Inventors: 周健; 郑文进; 胡忠利
Original assignee: Yongjia Tongqiu Valve Co ltd
Current assignee: Yongjia Tongqiu Valve Co ltd
Priority date: 2022-04-06
Filing date: 2022-04-06
Publication date: 2022-08-02
Anticipated expiration: 2032-04-06

Abstract

The utility model discloses a high low temperature self-adaptation ball valve seat, including the valve seat, the runner has been seted up in the valve seat, the valve seat includes first step ring and second step ring, second step ring outer wall from interior to exterior overlaps in proper order and is equipped with first graphite ring, first dish spring, rubber ring, second dish spring and second graphite ring, the peripheral terminal surface of rubber ring is higher than first graphite ring and second graphite ring, the inner circle of rubber ring sets firmly the elasticity packing ring; the utility model discloses valve seat compact structure, convenient assembling, sealing performance is good.

Description

High-low temperature self-adaptation ball valve disk seat

Technical Field

The utility model relates to a valve accessories technical field especially relates to a high low temperature self-adaptation ball valve disk seat.

Background

The valve is a control part in a fluid conveying system, has the functions of stopping, regulating, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like, is used for the valve of the fluid control system, and has quite a plurality of varieties and specifications from the simplest stop valve to various valves used in an extremely complicated automatic control system. The valve can be used for controlling the flow of various types of fluid such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like.

The valve is mainly used for controlling fluid media through the sealing fit between the valve seat and the valve core, the sealing fit between the existing valve seat and the valve core is mainly divided into hard sealing and soft sealing, and the existing valve seat is complex in sealing structure and not suitable for batch production and assembly.

Disclosure of Invention

The utility model aims at overcoming the shortcoming and not enough that prior art exists, and provide a high low temperature self-adaptation ball valve disk seat.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a high low temperature self-adaptation ball valve disk seat, includes the disk seat, the runner has been seted up in the disk seat, the disk seat includes first step ring and second step ring, second step ring periphery is by interior to outer in proper order the cover be equipped with first graphite ring, first dish spring, rubber ring, second dish spring and second graphite ring, the outer peripheral terminal surface of rubber ring is higher than first graphite ring and second graphite ring, the inner circle of rubber ring has set firmly the spring washer, first graphite ring and second graphite ring are interference fit with second step ring.

As a preferred technical scheme of the utility model, the rubber ring includes interior annular portion, outer annular portion and linking portion, all set up the through-hole that equals with second step ring external diameter in the middle of interior annular portion and the outer annular portion, interior annular portion separates a fixed distance with outer annular portion, linking portion is used for connecting the up end of interior annular portion and outer annular portion, linking portion is convex curved surface, form the installation space that is used for fixed elastic gasket between interior annular portion, outer annular portion and the linking portion.

As a preferred technical scheme of the utility model, link up the portion radial outside protruding and link up the outer terminal surface of portion and be coarse curved surface.

As an optimized technical proposal of the utility model, the first graphite ring and the second graphite ring are in an annular structure.

As a preferred technical scheme of the utility model, a plurality of spring holes have been seted up to a side end face that first graphite ring was far away to the second graphite ring, the spring hole is along circumference evenly distributed, every the spring has set firmly the spring in the spring hole.

As an optimized technical scheme of the utility model, first step intra-annular is equipped with first fitting surface, second fitting surface and first transition face, the intra-annular second transition face that links up with first transition face that is provided with of second step, first fitting surface, second fitting surface and first transition face have certain inclination.

Compared with the prior art, the beneficial effects of the utility model are that: through setting gradually first graphite ring, first dish spring, rubber ring, second dish spring and second graphite ring, make the disk seat structure compacter, the batch production equipment of being convenient for guarantees the leakproofness of disk seat simultaneously, and the rubber ring highly is higher than first graphite ring and second graphite ring, can the pressurized when rubber ring and valve body inner wall contact to guarantee the leakproofness between disk seat and case and the valve body inner wall.

Drawings

FIG. 1 is a schematic structural view of the present embodiment;

FIG. 2 is a sectional view of the present embodiment;

fig. 3 is a schematic structural view of the elastic washer in the present embodiment.

Reference numerals: 1. a valve seat; 2. a flow channel; 3. a first step ring; 4. a second step ring; 5. a first graphite ring; 6. a first disc spring; 7. a rubber ring; 8. a second disc spring; 9. a second graphite ring; 10. an elastic washer; 11. an inner ring portion; 12. an outer ring portion; 13. a joining section; 14. a spring hole; 15. a spring; 16. a first mating surface; 17. a second mating surface; 18. a first transition surface; 19. a second transition surface.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand, the present invention will be further explained below with reference to the following embodiments and the accompanying drawings, but the following embodiments are only the preferred embodiments of the present invention, and not all embodiments are included. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.

Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in fig. 1 to 3, the high and low temperature self-adaptive ball valve seat comprises a valve seat 1, a flow channel 2 is arranged in the valve seat 1, the valve seat 1 comprises a first step ring 3 and a second step ring 4, the periphery of the second step ring 4 is sequentially sleeved with a first graphite ring 5, a first disc spring 6, a rubber ring 7, a second disc spring 8 and a second graphite ring 9 from inside to outside, the peripheral end face of the rubber ring 7 is higher than the first graphite ring 5 and the second graphite ring 9, an inner ring of the rubber ring 7 is fixedly provided with an elastic washer 10, the first graphite ring 5 and the second graphite ring 9 are in interference fit with the second step ring 4, and the first graphite ring 5 and the second graphite ring 9 are of an annular structure.

Through setting gradually first graphite ring 5, first dish spring 6, rubber ring 7, second dish spring 8 and second graphite ring 9, make disk seat 1 structure compacter, the batch production equipment of being convenient for, guarantee disk seat 1's leakproofness simultaneously, rubber ring 7 highly is higher than first graphite ring 5 and second graphite ring 9, can the pressurized when rubber ring 7 contacts with the valve body inner wall, thereby guarantee the leakproofness between disk seat 1 and case and the valve body inner wall.

Rubber ring 7 includes inner ring portion 11, outer ring portion 12 and links up portion 13, the through-hole that equals with second step ring 4 external diameter is all seted up in the middle of inner ring portion 11 and the outer ring portion 12, inner ring portion 11 and outer ring portion 12 are separated by certain interval, link up portion 13 is used for connecting the up end of inner ring portion 11 and outer ring portion 12, link up portion 13 is convex curved surface, form the installation space that is used for fixed elastic gasket 10 between inner ring portion 11, outer ring portion 12 and the link up portion 13.

The joining part 13 protrudes outwards in the radial direction, and the outer end face of the joining part 13 is a rough curved surface, so that the sealing performance between the valve seat 1 and the valve body can be ensured.

A plurality of 15 holes 14 of spring have been seted up to the terminal surface of a side of second graphite ring 9 far away first graphite ring 5, 15 holes 14 of spring are along circumference evenly distributed, every 15 holes 14 of spring have set firmly spring 15 in, the valve body inner wall corresponds spring 15 and can set up spacing step, and valve body inner wall structure is not being repeated for conventional structure, between the spacing step of spring 15 pressurized and valve body inner wall and second graphite ring 9, makes disk seat 1 have the trend to spheroid direction micro-change to guarantee the leakproofness between disk seat 1 whole and the spheroid.

A first matching surface 16, a second matching surface 17 and a first transition surface 18 are arranged in the first step ring 3, a second transition surface 19 connected with the first transition surface 18 is arranged in the second step ring 4, the first matching surface 16, the second matching surface 17 and the first transition surface 18 have a certain inclination, the first matching surface 16 and the second matching surface 17 are spray-welded in the embodiment, and the spray-welding thickness is not less than 0.5 mm.

The basic principles, main features and advantages of the present invention have been shown and described above, and it should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and only the preferred embodiments of the present invention have been described in the above embodiments and the description, and the present invention is not limited by the above embodiments, and the present invention can be further modified and improved without departing from the spirit and scope of the present invention, which fall within the scope of the present invention as claimed, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. The utility model provides a high low temperature self-adaptation ball valve disk seat, includes the disk seat, set up the runner in the disk seat, its characterized in that: the disk seat includes first step ring and second step ring, second step ring periphery is overlapped by interior in proper order outside to and is equipped with first graphite ring, first dish spring, rubber ring, second dish spring and second graphite ring, the peripheral terminal surface of rubber ring is higher than first graphite ring and second graphite ring, the inner circle of rubber ring has set firmly the elastic washer, first graphite ring and second graphite ring are interference fit with second step ring.

2. The high and low temperature adaptive ball valve seat according to claim 1, wherein: the rubber ring includes interior annular portion, outer annular portion and links up the portion, all set up the through-hole that equals with second step ring external diameter in the middle of interior annular portion and the outer annular portion, interior annular portion separates certain interval with outer annular portion, it is used for connecting the up end of interior annular portion and outer annular portion to link up the portion, it is convex curved surface to link up the portion, form the installation space who is used for fixed elastic gasket between interior annular portion, outer annular portion and the linking portion.

3. The high and low temperature adaptive ball valve seat according to claim 2, wherein: the joining part protrudes outwards in the radial direction, and the outer end face of the joining part is a rough curved surface.

4. The high and low temperature adaptive ball valve seat according to claim 1, wherein: the first graphite ring and the second graphite ring are of annular structures.

5. The high and low temperature adaptive ball valve seat according to claim 1, wherein: a plurality of spring holes are formed in the end face, far away from the first graphite ring, of one side of the second graphite ring, the spring holes are evenly distributed along the circumferential direction, and a spring is fixedly arranged in each spring hole.

6. The high and low temperature adaptive ball valve seat according to claim 1, wherein: the first step ring is internally provided with a first matching surface, a second matching surface and a first transition surface, the second step ring is internally provided with a second transition surface connected with the first transition surface, and the first matching surface, the second matching surface and the first transition surface have certain inclination.