CN212177924U

CN212177924U - Hard seal ball valve structure

Info

Publication number: CN212177924U
Application number: CN202020659611.8U
Authority: CN
Inventors: 张徐; 邢孟; 唐春远
Original assignee: Jiangsu Shentong Valve Co Ltd
Current assignee: Jiangsu Shentong Valve Co Ltd
Priority date: 2020-04-27
Filing date: 2020-04-27
Publication date: 2020-12-18
Anticipated expiration: 2030-04-27

Abstract

The utility model provides a ball valve structure sealed firmly, includes valve body, valve gap, disk seat, valve shaft, spheroid, is equipped with spring, ejector pad, filler on the valve body, and spring and ejector pad butt, ejector pad butt filler, filler butt disk seat are equipped with the circle chuck through round pin axle I, round pin axle II and disk seat, valve shaft and valve gap fastening on the valve body. The beneficial effects of the utility model are that, promote the disk seat through spring, ejector pad and form the pretightning force seal with the spheroid, promote the ejector pad simultaneously with the help of the extrusion force of spring and drive that pack and valve body form sealedly, in addition, the sealed effect that the circle chuck on the valve body also played has ensured the reliability that the valve sealed under high-pressure medium pressure.

Description

Hard seal ball valve structure

Technical Field

The utility model relates to a ball valve, especially a hard seal ball valve structure.

Background

The upper-mounted hard seal ball valve is generally applied due to the advantages of simple structure, convenience in opening and closing, convenience in maintenance, long service life, bidirectional sealing, zero leakage and the like. The ball and the valve seat are arranged in the opening of the upper end face of the valve body, and hard sealing is adopted between the ball and the valve seat, so that the ball valve has the characteristics of high temperature resistance, high pressure resistance and the like. However, the inlet and outlet valve seats generally adopt a floating valve seat structure, and the sealing performance of the valve is influenced under the pressure of a high-pressure medium.

SUMMERY OF THE UTILITY MODEL

In order to overcome the prior art problem, the utility model provides a hard seal ball valve structure.

The technical scheme of the utility model, a hard sealing ball valve structure, including valve body, valve gap, disk seat, valve shaft, spheroid, be equipped with spring, ejector pad, filler on the valve body, spring and ejector pad butt, the ejector pad butt is packed, and the butt disk seat of packing is equipped with the round chuck that fastens through round pin axle I, round pin axle II and disk seat, valve shaft and valve gap on the valve body.

Further, TIG welding is adopted between the spring and the valve body.

The beneficial effects of the utility model are that, promote the disk seat through spring, ejector pad and form the pretightning force seal with the spheroid, promote the ejector pad simultaneously with the help of the extrusion force of spring and drive that pack and valve body form sealedly, in addition, the sealed effect that the circle chuck on the valve body also played has ensured the reliability that the valve sealed under high-pressure medium pressure.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is an enlarged view of a portion a in fig. 1.

In the figure: 1. a valve body; 2. a valve cover; 3. a valve seat; 4. a valve shaft; 5. a round chuck, 6, a pin shaft I; 7. a pin shaft II; 8. a sphere; 9. a spring; 10. a push block; 11. and (4) filling.

Detailed Description

As shown in the figure, a hard seal ball valve structure, including valve body 1, valve gap 2, disk seat 3, valve shaft 4, spheroid 8, be equipped with spring 9, ejector pad 10, filler 11 on the valve body 1, spring 9 and ejector pad 10 butt, ejector pad 10 butt filler 11, filler 11 butt disk seat 3 is equipped with round chuck 5 through round pin axle I6, round pin axle II 7 and disk seat 3, valve shaft 4 and the fastening of valve gap 2 on the valve body 1, adopts TIG welding between spring 9 and the valve body 1.

The valve seat 3 and the ball body 8 are pushed to form pretightening force seal through the spring 9, the push block 10 and the filler 11, meanwhile, the push block 10 is pushed to drive the filler 11 to form seal with the valve body by means of the extrusion force of the spring 9, and in addition, the circular chuck 5 on the valve body 1 also plays a role in sealing, so that the sealing reliability of the valve under the pressure of a high-pressure medium is ensured.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a hard seal ball valve structure, includes valve body, valve gap, disk seat, valve shaft, spheroid, its characterized in that, be equipped with spring, ejector pad, filler on the valve body, spring and ejector pad butt, ejector pad butt filler, filler butt disk seat, be equipped with the round chuck through round pin axle I, round pin axle II and disk seat, valve shaft and valve gap fastening on the valve body.

2. A hard seal ball valve construction as set forth in claim 1 wherein TIG welding is employed between said spring and said valve body.