CN217177485U

CN217177485U - Stable light-torque ball valve

Info

Publication number: CN217177485U
Application number: CN202123456152.7U
Authority: CN
Inventors: 林正潮
Original assignee: Zhejiang Shengxiron Valve Technology Co Ltd
Current assignee: Zhejiang Shengxiron Valve Technology Co Ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-08-12
Anticipated expiration: 2031-12-31

Abstract

The utility model discloses a stable light torque ball valve, which comprises a valve cover, wherein one side of the valve cover is provided with a valve body, a bolt and a nut are arranged between the valve body and the valve cover, one side of the valve body is provided with a flange gasket, a ball body is arranged in the valve body, one side of the ball body is provided with a sealing ring, one side of the ball body is provided with a valve rod, a metal spacing ring and an O-shaped ring are added in a stuffing box for sealing, the valve torque is reduced, and the sealing performance of the stuffing box is improved; the design of V-shaped packing is adopted to automatically compensate the sealing performance of the packing so as to obtain better sealing performance; a metal flat gasket is added on the packing to ensure that the stress of the whole plane is more balanced in the process of compressing the packing gland; increase the tetrafluoro cover inside gland and have the stable effect of antifriction, let the valve rod can not direct contact gland body at the opening in-process, stop the metal friction, produce valve rod wearing and tearing, reduce life, still alleviateed the moment of torsion of valve when increasing the valve rod and opening stable, make the valve open more lightly.

Description

Stable light-torque ball valve

Technical Field

The utility model discloses engineering equipment technical field specifically is a stabilize light moment of torsion ball valve.

Background

A ball valve is defined as: the opening and closing piece (ball) is driven by the valve rod and rotates around the axis of the ball valve. The hard seal V-shaped ball valve can also be used for regulating and controlling fluid, wherein a V-shaped ball core of the hard seal V-shaped ball valve and a metal valve seat of the build-up welding hard alloy have strong shearing force, and the hard seal V-shaped ball valve is particularly suitable for media containing fibers, tiny solid particles and the like. The multi-way ball valve can flexibly control the confluence, the diversion and the switching of the flow direction of the medium on the pipeline, and can close any channel to connect the other two channels

With the rapid development of science and technology, the ball valve has been rapidly developed into a main valve by the continuous improvement of production process and product structure. In China, the ball valve is widely applied to industries such as petroleum refining, long-distance pipelines, chemical industry, papermaking, pharmacy, water conservancy, electric power, municipal administration, steel and the like, and plays a significant role in national economy. In some current floating seal ball valves, the valve rod position is in the assembly valve body basically, directly leans on the packing hole to guarantee the stability of valve rod, and this kind of condition is under the softer condition of packing material, and the valve is opening and is closing the in-process, because the atress of handle, makes the valve rod unstable easily, can take place the skew phenomenon and cause packing department to reveal, the valve torque increase of opening.

To this end, a stable light torque ball valve is proposed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a stabilize light moment of torsion ball valve to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a stabilize light moment of torsion ball valve, includes the valve gap, valve gap one side is equipped with the valve body, is provided with bolt and nut between valve body and the valve gap, and valve body one side is equipped with the flange gasket, is equipped with the spheroid in the valve body, and spheroid one side is equipped with the sealing washer, and spheroid one side is equipped with the valve rod.

Preferably, the valve rod side valve rod antifriction pad.

Preferably, one side of the valve body is provided with a packing box, a metal spacer ring is arranged in the packing box, and one side of the metal spacer ring is provided with an O-shaped ring.

Preferably, one side of the metal spacer ring is provided with a V-shaped packing, one side of the V-shaped packing is provided with a metal flat gasket, and one side of the metal flat gasket is provided with a packing gland.

Preferably, the inner hole of the packing gland is provided with a polytetrafluoroethylene sleeve, one side of the packing gland is provided with an inner hexagon screw, one side of the valve rod is provided with a switching sleeve, and one side of the valve body is also provided with a support.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model installs the ball valve on the device, and the ball valve is opened and closed by the handle force on the ball valve, and the valve rod anti-friction pad is designed to prevent the valve rod from directly contacting and rubbing with the valve body in the opening process of the ball valve, so as to reduce the friction force; a metal spacer ring and an O-shaped ring are added in the stuffing box for sealing, so that the torque of the valve is reduced, and the sealing performance of the stuffing box is improved; the design of V-shaped packing is adopted to automatically compensate the sealing performance of the packing so as to obtain better sealing performance; a metal flat gasket is added on the packing to ensure that the stress of the whole plane is more balanced in the process of compressing the packing gland; increase the tetrafluoro cover inside gland and have the stable effect of antifriction, let the valve rod can not direct contact gland body at the opening in-process, stop the metal friction, produce valve rod wearing and tearing, reduce life, still alleviateed the moment of torsion of valve when increasing the valve rod and opening stable, make the valve open more lightly.

Drawings

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

fig. 2 is a combination view of the O-ring and the metal spacer ring of the present invention.

In the figure: 1. a valve cover; 2. a valve body; 3. a bolt and a nut; 4. a flange gasket; 5. a seal ring; 6. a sphere; 7. a valve stem; 8. a valve stem wear pad; 9. an O-shaped ring; 10. a metal spacer ring; 11. a V-shaped filler; 12. a metal flat pad; 13. a tetrafluoro sleeve; 14. A packing gland; 15. a socket head cap screw; 16. a transfer sleeve; 17. and (4) a bracket.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution:

the utility model provides a stabilize light moment of torsion ball valve, includes

valve gap

1, 1 one side of valve gap is equipped with valve body 2, be provided with bolt and nut 3 between valve body 2 and the

valve gap

1, 2 one sides of valve body are equipped with flange gasket 4, be equipped with spheroid 6 in the valve body 2, 6 one sides of spheroid are equipped with sealing washer 5, 6 one sides of spheroid are equipped with valve rod 7.

As an embodiment of the present invention, the valve rod 7 side valve rod antifriction pad 8.

During operation, the design of the valve rod antifriction pad 8 ensures that the valve rod 7 can not be directly contacted and rubbed with the valve body 2 in the opening process, and the friction force is reduced.

As an embodiment of the utility model 2 one side of valve body is equipped with the packing box, be equipped with metal spacer ring 10 in the packing box, metal spacer ring 10 one side is equipped with O type circle 9.

When the valve works, the metal spacer ring 10 and the O-shaped ring 9 are additionally arranged in the stuffing box for sealing, so that the torque of the valve is reduced, and the sealing performance of the stuffing box is improved.

As an embodiment of the utility model, metal spacer ring 10 one side is equipped with V type filler 11, V type filler 11 one side is equipped with the flat pad 12 of metal, the flat pad 12 one side of metal is equipped with gland 14.

When the device works, the design of the V-shaped packing 11 is adopted to ensure that the packing sealing performance is automatically compensated to obtain better sealing performance; the addition of the flat metal pad 12 on the packing allows the gland 14 to balance the forces throughout the plane during the packing process.

As an embodiment of the utility model, 14 holes of gland are provided with

tetrafluoro cover

13, 14 one sides of gland are equipped with allen key 15, valve rod 7 one side is provided with

switching cover

16, 2 one sides of valve body still are provided with support 17.

During operation, increase tetrafluoro cover 13 in gland 14 the inside and have the stable effect of antifriction, let valve rod 7 can not direct contact gland 14 body at the opening in-process, stop the metal friction, produce valve rod 7 wearing and tearing, reduce life, increase valve rod 7 and opened still alleviateed the moment of torsion of valve when stable, make the valve open more lightly.

The working principle is as follows: when the ball valve works, the ball valve is arranged on equipment, the handle on the ball valve is stressed to open and close the ball valve, and the valve rod 7 cannot be directly contacted and rubbed with the valve body 2 in the opening process and the closing process of the ball valve due to the design of the valve rod antifriction pad 8, so that the friction force is reduced; a metal spacer ring 10 and an O-shaped ring 9 are additionally arranged in the stuffing box for sealing, so that the torque of the valve is reduced, and the sealing performance of the stuffing box is improved; the design of the V-shaped packing 11 is adopted to automatically compensate the sealing performance of the packing so as to obtain better sealing performance; the metal flat gasket 12 is added on the packing, so that the stress of the whole plane is more balanced in the process of compressing the packing gland 14; increasing tetrafluoro cover 13 in gland 14 the inside and having the stable effect of antifriction, let valve rod 7 can not direct contact gland 14 body at the opening in-process, stop the metal friction, produce valve rod 7 wearing and tearing, reduce life, increase valve rod 7 and opened still alleviateed the moment of torsion of valve when stable, make the valve open more lightly.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A stabilize light moment of torsion ball valve, includes valve gap (1), its characterized in that: a valve body (2) is arranged on one side of the valve cover (1), a bolt and a nut (3) are arranged between the valve body (2) and the valve cover (1), a flange gasket (4) is arranged on one side of the valve body (2), a ball body (6) is arranged in the valve body (2), a sealing ring (5) is arranged on one side of the ball body (6), and a valve rod (7) is arranged on one side of the ball body (6);

a stuffing box is arranged on one side of the valve body (2), a metal spacing ring (10) is arranged in the stuffing box, and an O-shaped ring (9) is arranged on one side of the metal spacing ring (10);

one side of the metal spacer ring (10) is provided with a V-shaped packing (11), one side of the V-shaped packing (11) is provided with a metal flat gasket (12), one side of the metal flat gasket (12) is provided with a packing gland (14), and an inner hole of the packing gland (14) is provided with a tetrafluoro sleeve (13).

2. A stable light torque ball valve as defined in claim 1 wherein: and a valve rod antifriction pad (8) is arranged on one side of the valve rod (7).

3. A stable light torque ball valve as defined in claim 2 wherein: the packing gland (14) is provided with socket head cap screw (15) one side, valve rod (7) one side is provided with switching cover (16), valve body (2) one side still is provided with support (17).