CN215334599U

CN215334599U - High-pressure hard-sealing spherical stop valve

Info

Publication number: CN215334599U
Application number: CN202120753905.1U
Authority: CN
Inventors: 崔云龙; 叶冬琴; 陈亚
Original assignee: Yancheng Haomiao Mechanical Equipment Co ltd
Current assignee: Yancheng Haomiao Mechanical Equipment Co ltd
Priority date: 2021-04-14
Filing date: 2021-04-14
Publication date: 2021-12-28
Anticipated expiration: 2031-04-14

Abstract

The utility model relates to a high-pressure hard-sealing spherical stop valve which comprises a main body, wherein two ends of the main body are detachably connected with auxiliary bodies, a valve rod, a ball core and a valve seat are arranged on each auxiliary body, the valve seat is arranged between the two auxiliary bodies, the ball core is arranged in the valve seat, one end of the valve rod is connected with the ball core, the other end of the valve rod penetrates through the main body and extends to the outside, a first O-shaped sealing ring is arranged at a joint corresponding to the lower half part between the main body and the auxiliary bodies, a hard alloy sealing strip is arranged between the ball core and the valve seat, and a second O-shaped sealing ring is arranged between the valve seat and the auxiliary bodies. And a hard alloy strip sealing structure is adopted, so that the sealing performance of the ball core under the working condition that high-pressure media have particles is ensured. The sealing reliability and the long service life are ensured.

Description

High-pressure hard-sealing spherical stop valve

Technical Field

The utility model relates to the technical field of valve equipment, in particular to a high-pressure hard-sealing spherical stop valve.

Background

The pipeline control system is arranged on an industrial pipe network in industrial departments such as petroleum, chemical industry, electric power, metallurgy, food, medicine, light textile, paper making and the like in China, and particularly when a space device is installed, the defects of closing of a common spherical stop valve in a particle medium and high pressure and space positions are effectively overcome.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a high-pressure hard-sealing spherical stop valve.

(II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a high pressure ball check valve that seals firmly, includes the main part, and the both ends detachably of main part is connected with vice body, be provided with valve rod, ball core and disk seat on the vice body, the disk seat is installed two between the vice body, the ball core is installed inside the disk seat, and valve rod one end is connected with the ball core, and the other end passes the main part and stretches to the external world, the junction that the latter half between main part and the vice body corresponds is provided with first O type sealing washer, be provided with the carbide sealing strip between ball core and the disk seat, be provided with second O type sealing washer between disk seat and the vice body.

Preferably, the main body and the sub body are detachably connected by a hexagonal screw.

In a further preferred embodiment, a third O-ring is provided at the corresponding junction of the upper half portion between the main body and the sub body.

In a further preferred embodiment, a fourth O-ring seal is provided between the valve stem and the main body.

In a further preferred embodiment, a handle is connected to the end of the valve rod that protrudes to the outside.

In a further preferred embodiment, the main body and the upper half of the sub body are detachably connected by a hexagon socket head cap screw.

(III) advantageous effects

Compared with the prior art, the utility model provides a high-pressure hard-sealing spherical stop valve which has the following beneficial effects:

1. the whole body adopts a forging structure, the strength of the whole body is ensured, the length of the whole valve body is only 1/2 of a common spherical stop valve, a large amount of cost is saved, the installation is simple and convenient, and the valve body can be installed at any position in a pipeline in any direction;

2. and a hard alloy strip sealing structure is adopted, so that the sealing performance of the ball core under the working condition that high-pressure media have particles is ensured. The sealing reliability and the long service life are ensured;

3. and a multi-sealing structure is adopted, so that sealing under a high-pressure working condition is ensured.

Drawings

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

In the figure: 1. a sub-body; 2. a hexagon bolt; 3. a main body; 4. a first O-ring seal; 5, hard alloy sealing strips; 6 a second O-shaped sealing ring; 7. a third O-shaped sealing ring; 8. a fourth O-shaped sealing ring; 9. a hexagon socket head cap screw; 10. a valve stem; 11. a handle; 12. a ball core; 13 valve seat.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b):

referring to fig. 1, the high-pressure hard-sealing spherical stop valve comprises a main body 3, two ends of the main body 3 are detachably connected with auxiliary bodies 1, a valve rod 10, a ball core 12 and a valve seat 13 are arranged on each auxiliary body 1, the valve seat 13 is arranged between the two auxiliary bodies 1, the ball core 12 is arranged inside the valve seat 13, one end of the valve rod 10 is connected with the ball core 12, the other end of the valve rod penetrates through the main body 3 and extends to the outside, a first O-shaped sealing ring 4 is arranged at the corresponding connection position of the lower half part between the main body 3 and the auxiliary body 1, a hard alloy sealing strip 5 is arranged between the ball core 12 and the valve seat 13, and a second O-shaped sealing ring 6 is arranged between the valve seat 13 and the auxiliary body 1.

In this embodiment, the main body 3 and the sub body 1 are detachably connected by a hexagon bolt 2. The disassembly and the assembly are convenient.

In the present embodiment, a third O-ring 7 is disposed at the corresponding connection position of the upper half portion between the main body 3 and the auxiliary body 1. So that the joint of the main body 3 and the upper half part of the auxiliary body 1 has better sealing performance.

In this embodiment, a fourth O-ring 8 is disposed between the valve stem 10 and the body 3. So that the sealing between the valve stem 10 and the body 3 is better.

In this embodiment, a handle 11 is connected to one end of the valve stem 10 extending to the outside. The valve stem 10 can be better rotated by the handle 11.

In this embodiment, the main body 3 and the upper half of the sub body 1 are detachably connected by hexagon socket head cap screw 9. The disassembly and the assembly are convenient.

The working principle is as follows:

when using, hold handle 11 and rotate, handle 11 drives the rotation of valve rod 10, valve rod 10 drives ball core 12 and rotates, just so can realize opening or closing of valve flow channel, thereby carry out the control to the pipeline, in addition, first O type sealing washer 4, second O type sealing washer 6, the cooperation design of third O type sealing washer 7 and fourth O type sealing washer 8 makes the whole equipment leakproofness better, in addition, the cooperation design of hexagon bolt 2 and hexagon socket head cap screw 9 has made things convenient for dismantlement and installation to main part 3 and auxiliary body 1.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high pressure ball check valve sealed firmly, includes the main part, its characterized in that, and the both ends detachably of main part is connected with vice body, be provided with valve rod, ball core and disk seat on the vice body, the disk seat is installed two between the vice body, the ball core is installed inside the disk seat, and valve rod one end is connected with the ball core, and the other end passes the main part and stretches to the external world, the junction that the latter half between main part and the vice body corresponds is provided with first O type sealing washer, be provided with the carbide sealing strip between ball core and the disk seat, be provided with second O type sealing washer between disk seat and the vice body.

2. A high pressure hard seal ball shut off valve according to claim 1 wherein: the main body is detachably connected with the auxiliary body through a hexagonal screw.

3. A high pressure hard seal ball shut off valve according to claim 1 wherein: and a third O-shaped sealing ring is arranged at the corresponding joint of the upper half part between the main body and the auxiliary body.

4. A high pressure hard seal ball shut off valve according to claim 1 wherein: and a fourth O-shaped sealing ring is arranged between the valve rod and the main body.

5. A high pressure hard seal ball shut off valve according to claim 1 wherein: and one end of the valve rod extending to the outside is connected with a handle.

6. A high pressure hard seal ball shut off valve according to claim 1 wherein: the main body is detachably connected with the upper half part of the auxiliary body through the hexagon socket head cap screw.