CN213332510U

CN213332510U - Dustproof sealing ball valve

Info

Publication number: CN213332510U
Application number: CN202022216490.2U
Authority: CN
Inventors: 戴婉婉
Original assignee: Taizhou Zhonghe Copper Co Ltd
Current assignee: Taizhou Zhonghe Copper Co Ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-06-01
Anticipated expiration: 2030-09-30

Abstract

The utility model provides a dustproof sealing ball valve belongs to the valve field. It has solved the not good problem of ball valve seal effect. This dustproof sealing ball valve, which comprises a valve body, the valve gap, the disk seat, the spheroid, the valve rod, the handle and be located the sealing filler between valve gap and the valve rod, be provided with the connecting piece of dustproof sealing effect in the valve body, the position department that the connecting piece is close to ball valve one end is provided with the spacing step one that leans on with the disk seat counterbalance, be provided with the buffer spring one for the spheroid buffering on the spacing step one, be provided with the rubber slab that supplies the spheroid sealing rather than corresponding position department on the disk seat, connecting piece and rubber slab center on each other and form a confined cavity, be provided with the buffer spring two for the disk seat buffering. The utility model has the advantages of simple structure and good dustproof sealing effect.

Description

Dustproof sealing ball valve

Technical Field

The utility model belongs to the valve field relates to a dustproof sealing ball valve.

Background

Ball valves come out in the 50 th of the 20 th century, and with the rapid development of science and technology and the continuous improvement of production processes and product structures, the ball valves have rapidly developed into a main valve class in short 40 years. In countries with developed western industries, the use of ball valves is increasing year by year, in China, ball valves are widely applied in industries such as petroleum refining, long-distance pipelines, chemical industry, paper making, pharmacy, water conservancy, electric power, municipal administration, steel and the like, have a very important position in national economy, have the action of rotating 90 degrees, a plug body is a sphere, a circular through hole or a channel passes through the axis of the plug body, the ball valve is mainly used for cutting, distributing and changing the flowing direction of a medium in a pipeline, and can be closed tightly only by rotating 90 degrees and by a small rotating torque.

Because the application of ball valve is extensive, also higher and higher to the requirement of ball valve, the ball valve is used for the pipeline to circulate more, and the leakproofness requirement to the ball valve is very strict, but most ball valves on the market are sealed effectual, and when the ball valve worked for a long time, the medium of circulation was the high temperature and has a small amount of impurity in the ball valve passageway, and the invasion of high temperature and impurity can lead to ball valve disk seat sealing washer to seal out of work or the disk seat difficulty of floating, has seriously influenced the life of ball valve.

Disclosure of Invention

The utility model aims at the above-mentioned problem that exists among the prior art, provide a sealed effectual ball valve that just has dustproof effect.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a dustproof sealing ball valve, includes valve body, valve gap, disk seat, spheroid, valve rod, handle and is located the sealing filler between valve gap and the valve rod, its characterized in that, the valve body in be provided with the connecting piece of dustproof sealing effect, the position department that the connecting piece is close to ball valve one end be provided with the spacing step one that the disk seat counterbalance leaned on, spacing step one on be provided with the buffer spring one for the spheroid buffering, the disk seat on be provided with rather than corresponding position department and supply the sealed rubber slab of spheroid, disk seat, connecting piece and rubber slab around forming a confined cavity each other, the rubber slab on be provided with the buffer spring two for the disk seat buffering.

In the dustproof sealing ball valve, the connecting piece is provided with a first mounting groove for mounting the first buffer spring, and the rubber plate is provided with a second mounting groove for mounting the second buffer spring.

In the dustproof sealing ball valve, the cavity is internally provided with the soft rubber gasket.

In the dustproof sealing ball valve, a second limiting step for limiting the position of the connecting piece is arranged in the valve body, a protruding portion abutted against the second limiting step is arranged on the connecting piece, and the connecting piece is connected with the valve body through threads.

Compared with the prior art, this dustproof sealing ball valve not only seals effectual effect still has the effect of buffering under ball valve long-term work through being provided with a connecting plate and rubber and being provided with buffer spring inside the ball valve, and the effectual impurity that prevents gets into through the life of also greatly increased ball valve.

Drawings

Fig. 1 is a schematic sectional view of the present dust-proof sealing valve.

Fig. 2 is a schematic view of a partial sectional structure of the present dust-proof sealing valve.

In the figure, 1, a valve body; 2. a sphere; 3. a valve stem; 4. a valve seat; 5. sealing and filling; 6. a connecting member; 7. a first limiting step; 8. a first buffer spring; 9. a rubber plate; 10. a cavity; 11. a second buffer spring; 12. a first mounting groove; 13. a second mounting groove; 14. a soft rubber gasket; 15. a second limiting step; 16. a raised portion.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 and 2, the dustproof sealing ball valve comprises a valve body 1, a valve cover, a valve seat 4, a ball body 2, a valve rod 3, a handle and a sealing filler 5 located between the valve cover and the valve rod 3, wherein a connecting piece 6 with a dustproof sealing effect is arranged in the valve body 1, a first limit step 7 abutting against the valve seat 4 is arranged at a position, close to one end of the ball valve, of the connecting piece 6, a first buffer spring 8 for buffering the ball body 2 is arranged on the first limit step 7, a rubber plate 9 for sealing the ball body 2 is arranged at a position, corresponding to the position, of the valve seat 4, the connecting piece 6 and the rubber plate 9 mutually surround to form a closed cavity 10, and a second buffer spring 11 for buffering the valve seat 4 is.

Preferably, the connecting member 6 is provided with a first mounting groove 12 for mounting the first buffer spring 8, and the rubber plate 9 is provided with a second mounting groove 13 for mounting the second buffer spring 11.

Preferably, a soft rubber gasket 14 is provided in the chamber 10.

Preferentially, a second limiting step 15 for limiting the position of the connecting piece 6 is arranged in the valve body 1, a protruding portion 16 abutting against the second limiting step 15 is arranged on the connecting piece 6, and the connecting piece 6 is connected with the valve body 1 through threads.

Principle of operation

The contact surface of connecting piece 6 and rubber slab 9 is in the laminating state and has played sealed effect, and the contact surface of disk seat 4 and rubber slab 9 also is the laminating face, and rubber itself just has fine leakproofness in addition, is provided with soft rubber packing ring 14 again in cavity 10 between the three and makes the sealing performance of ball valve better, all is provided with buffer spring simultaneously on connecting plate and rubber slab 9, can have a good leakproofness and cushioning effect simultaneously when the ball valve works.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A dustproof sealing ball valve comprises a valve body (1), a valve cover, a valve seat (4), a ball body (2), a valve rod (3), a handle and a sealing filler (5) positioned between the valve cover and the valve rod (3), it is characterized in that a connecting piece (6) with dustproof sealing function is arranged in the valve body (1), a first limit step (7) which is propped against the valve seat (4) is arranged at the position of the connecting piece (6) close to one end of the ball valve, a first buffer spring (8) for buffering the ball body (2) is arranged on the first limit step (7), a rubber plate (9) for sealing the ball body (2) is arranged on the valve seat (4) corresponding to the valve seat, the valve seat (4), the connecting piece (6) and the rubber plate (9) surround each other to form a closed cavity (10), and a second buffer spring (11) for buffering the valve seat (4) is arranged on the rubber plate (9).

2. The dust-proof sealing ball valve according to claim 1, wherein the connecting member (6) is provided with a first mounting groove (12) for mounting the first buffer spring (8), and the rubber plate (9) is provided with a second mounting groove (13) for mounting the second buffer spring (11).

3. A dust sealing ball valve according to claim 1, characterized in that a soft rubber gasket (14) is provided in the chamber (10).

4. The dust-proof sealing ball valve according to claim 1, characterized in that a second limit step (15) for limiting the position of the connecting piece (6) is arranged in the valve body (1), a protruding part (16) abutting against the second limit step (15) is arranged on the connecting piece (6), and the connecting piece (6) is in threaded connection with the valve body (1).