CN212273252U

CN212273252U - Buried welded corrosion-resistant ball valve for gas

Info

Publication number: CN212273252U
Application number: CN202020841906.7U
Authority: CN
Inventors: 高亮; 王凤海; 布晓辉
Original assignee: Haicheng Guofeng Pipe Industry Co ltd
Current assignee: Haicheng Guofeng Pipe Industry Co ltd
Priority date: 2020-05-19
Filing date: 2020-05-19
Publication date: 2021-01-01
Anticipated expiration: 2030-05-19

Abstract

The utility model discloses a buried welding anti-corrosion ball valve for gas, which comprises a protective shell, an input pipe, a locking cover I, an elastic jacket I, an input hole, a sealing ring I, a protective cover, an air tap, a sleeve body, a spring, a transmission shaft, an end cover, a hand wheel, a piston, a limiting ring body, a locking cover II, an elastic jacket II, an output hole, an output pipe and a sealing ring II; the air tap arranged in the utility model is convenient for inputting compressed air into the protective shell, thereby avoiding external liquid from entering the protective shell and also improving the anti-corrosion effect of the ball valve body; the spring and the piston arranged in the utility model can improve the effect of storing compressed air in the protective shell, thereby improving the effect of long-time protection; the utility model discloses in press from both sides the fixed input tube of a centre gripping through the elasticity and press from both sides the fixed output tube of two centre grippings through the elasticity clamp to avoid damaging input tube and output tube, further improved the life of ball valve body.

Description

Buried welded corrosion-resistant ball valve for gas

Technical Field

The utility model relates to the technical field of valves, specific anticorrosive ball valve of ground welding is buried with burning gas that says so.

Background

A ball valve is an actuator, i.e. a valve in which a ball is driven by a valve stem and rotates about the axis of the valve stem. It is mainly used for cutting off or connecting medium in pipeline, and also can be used for regulating and controlling fluid. Traditional ball valve mainly comprises valve body, valve gap, spheroid, valve rod and the driving piece of driving valve rod, and the protective properties of current gas is with burying ground welding anticorrosive ball valve is than relatively poor to the life of ball valve has been influenced.

SUMMERY OF THE UTILITY MODEL

The above-mentioned weak point to existence among the prior art, the utility model aims at providing a gas is with burying ground anticorrosive ball valve of welding has solved current gas and has buried the protective properties of ground anticorrosive ball valve of welding relatively poor to influence ball valve life's problem.

The utility model discloses a realize that the technical scheme that above-mentioned purpose adopted is: a buried welding anticorrosion ball valve for gas comprises a ball valve body and is characterized by further comprising a protective shell, an input pipe, a locking cover I, an elastic jacket I, an input hole, a sealing ring I, a protective cover, an air tap, a sleeve body, a spring, a transmission shaft, an end cover, a hand wheel, a piston, a limiting ring body, a locking cover II, an elastic jacket II, an output hole, an output pipe and a sealing ring II; an output hole is formed in the center of the right side of the protection shell, an input hole is formed in the center of the left side of the protection shell, and a protection cover is fixedly connected to an opening on the upper side of the protection shell; the right side of the input pipe is connected with an input port on the left side of the ball valve body, the left side of the input pipe is positioned in the input hole, and a first sealing ring is arranged between the outer part of the left side of the input pipe and the inner wall of the input hole; the elastic jacket I is fixedly connected in the opening on the right side of the input hole through the locking cover I, the outer conical surface on the right side of the elastic jacket I is connected with the inner conical hole on the left side of the locking cover I, and the inner part of the elastic jacket I is connected with the outer part on the right side of the input pipe; the lower side of the air tap is fixedly connected to the left side of the protective cover, and an outlet at the lower side of the air tap is communicated with the interior of the protective shell; the lower opening of the sleeve body is fixedly connected with the upper opening of the through hole arranged in the center of the protective cover, a limiting ring body is fixedly connected in the lower opening of the sleeve body, and the lower side inside the sleeve body is vertically and movably connected with a piston; the piston is positioned on the upper side of the limiting ring body, and a spring is arranged between the upper side surface of the piston and the top surface of the interior of the sleeve body; the upper side of the transmission shaft is movably connected in the center of the upper side of the sleeve body through an end cover, the end part of the upper side of the transmission shaft is fixedly connected with a hand wheel, the outer part of the lower side of the transmission shaft is movably connected with the inner part of the center of the piston, and the end part of the lower side of the transmission shaft is fixedly connected with the valve shaft on the upper side of; the left opening of the output pipe is connected with the output port on the right side of the ball valve body, the right side of the output pipe is positioned in the output hole, and a second sealing ring is arranged between the outer part of the output pipe and the inner wall of the output hole; the elastic jacket II is fixedly connected in an opening on the left side of the output hole through a locking cover II, the inside of the elastic jacket II is connected with the outside of the left side of the output pipe, and the outer conical surface on the left side of the elastic jacket II is connected with the central conical hole on the right side of the locking cover II.

Preferably, the number of the first sealing rings is at least two.

Preferably, the number of the second sealing ring is at least two.

Preferably, the inner diameter of the limiting ring body is smaller than the outer diameter of the piston.

Preferably, the protective shell is internally provided with compressed air.

The utility model has the advantages that:

(1) the utility model discloses in the air cock that sets up, be convenient for to the inside input compressed air of protective housing to avoided outside liquid to enter into protective housing, also improved the anticorrosive effect of ball valve body.

(2) The utility model discloses in the spring and the piston that set up, can improve the effect of the inside compressed air storage of protective housing to the effect of long-time protection has been improved.

(3) The utility model discloses in press from both sides the fixed input tube of a centre gripping through the elasticity and press from both sides the fixed output tube of two centre grippings through the elasticity clamp to avoid damaging input tube and output tube, further improved the life of ball valve body.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a partial enlarged view of the present invention.

In the figure: 1-a ball valve body; 2-a protective housing; 3-an input pipe; 4, locking the cover I; 5-elastic jacket one; 6-an input aperture; 7-sealing ring I; 8-protective cover; 9-air tap; 10-a sleeve body; 11-a spring; 12-a drive shaft; 13-end cap; 14-a hand wheel; 15-a piston; 16-a limit ring body; 17-locking cover two; 18-elastic jacket two; 19-an output aperture; 20-an output pipe; 21-sealing ring two.

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.

As shown in fig. 1-2, a buried welded corrosion-resistant ball valve for gas comprises a ball valve body 1, and further comprises a protective shell 2, an input pipe 3, a locking cover I4, an elastic jacket I5, an input hole 6, a seal ring I7, a protective cover 8, an air tap 9, a sleeve body 10, a spring 11, a transmission shaft 12, an end cover 13, a hand wheel 14, a piston 15, a limit ring body 16, a locking cover II 17, an elastic jacket II 18, an output hole 19, an output pipe 20 and a seal ring II 21; an output hole 19 is formed in the center of the right side of the protection shell 2, an input hole 6 is formed in the center of the left side of the protection shell 2, and a protection cover 8 is fixedly connected to an opening on the upper side of the protection shell 2; the right side of the input pipe 3 is connected with an input port on the left side of the ball valve body 1, the left side of the input pipe 3 is positioned in an input hole 6, and a first sealing ring 7 is arranged between the outer part of the left side of the input pipe 3 and the inner wall of the input hole 6; the elastic jacket I5 is fixedly connected in the opening at the right side of the input hole 6 through the locking cover I4, the external conical surface at the right side of the elastic jacket I5 is connected with the internal conical hole at the left side of the locking cover I4, and the inside of the elastic jacket I5 is connected with the outside at the right side of the input pipe 3; the lower side of the air tap 9 is fixedly connected to the left side of the protective cover 8, and an outlet at the lower side of the air tap 9 is communicated with the interior of the protective shell 2; the lower opening of the sleeve body 10 is fixedly connected with the upper opening of a through hole arranged in the center of the protective cover 8, a limiting ring body 16 is fixedly connected in the lower opening of the sleeve body 10, and a piston 15 is vertically and movably connected to the lower side in the sleeve body 10; the piston 15 is positioned on the upper side of the limiting ring body 16, and a spring 11 is arranged between the upper side surface of the piston 15 and the inner top surface of the sleeve body 10; the upper side of the transmission shaft 12 is movably connected in the center of the upper side of the sleeve body 10 through an end cover 13, the end part of the upper side of the transmission shaft 12 is fixedly connected with a hand wheel 14, the outer part of the lower side of the transmission shaft 12 is movably connected with the inner part of the center of a piston 15, and the end part of the lower side of the transmission shaft 12 is fixedly connected with the valve shaft on the upper side of the; the left opening of the output pipe 20 is connected with the right output port of the ball valve body 1, the right side of the output pipe 20 is positioned in the output hole 19, and a second sealing ring 21 is arranged between the outer part of the output pipe 20 and the inner wall of the output hole 19; the second elastic jacket 18 is fixedly connected to the opening at the left side of the output hole 19 through the second locking cover 17, the inside of the second elastic jacket 18 is connected with the outside of the left side of the output pipe 20, and the outer conical surface at the left side of the second elastic jacket 18 is connected with the central conical hole at the right side of the second locking cover 17.

At least two first sealing rings 7 are arranged; at least two sealing rings II 21 are arranged; the inner diameter of the limiting ring body 16 is smaller than the outer diameter of the piston 15; the inside of the protective shell 2 is provided with compressed air.

The utility model discloses a user state does, in using, it is rotatory at first to drive transmission shaft 12 through hand wheel 14, and the rotation of transmission shaft 12 then drives the valve shaft rotation in the ball valve body 1 and carries out opening or closing of ball valve, the air cock 9 that sets up here, be convenient for to the inside input compressed air of protective housing 2, thereby avoided outside liquid to enter into protective housing 2, just also improved ball valve body 1's anticorrosive effect, and the spring 11 and the piston 15 that set up, can improve the effect of the inside compressed air storage of protective housing 2, thereby the effect of long-time protection has been improved, in addition through elastic clamping cover 5 fixed input tubes 3 of centre gripping and through the fixed output tube 20 of elastic clamping cover two 18 centre gripping, thereby avoided damaging input tube 3 and output tube 20, the life of ball valve body 1 has just also further been improved.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

The basic principles and main features of the present invention and the 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, which are only illustrative, but also various changes and modifications may be made without departing from the spirit and scope of the present invention, which fall within the scope of the present invention as claimed, which is defined by the appended claims and their equivalents.

Claims

1. A buried welding anticorrosion ball valve for gas comprises a ball valve body (1), and is characterized by further comprising a protective shell (2), an input pipe (3), a locking cover I (4), an elastic jacket I (5), an input hole (6), a sealing ring I (7), a protective cover (8), an air tap (9), a sleeve body (10), a spring (11), a transmission shaft (12), an end cover (13), a hand wheel (14), a piston (15), a limiting ring body (16), a locking cover II (17), an elastic jacket II (18), an output hole (19), an output pipe (20) and a sealing ring II (21);

an output hole (19) is formed in the center of the right side of the protection shell (2), an input hole (6) is formed in the center of the left side of the protection shell (2), and a protection cover (8) is fixedly connected to an opening at the upper side of the protection shell (2);

the right side of the input pipe (3) is connected with an input port at the left side of the ball valve body (1), the left side of the input pipe (3) is positioned in the input hole (6), and a first sealing ring (7) is arranged between the outer part of the left side of the input pipe (3) and the inner wall of the input hole (6);

the elastic jacket I (5) is fixedly connected in the opening at the right side of the input hole (6) through the locking cover I (4), the outer conical surface at the right side of the elastic jacket I (5) is connected with the inner conical hole at the left side of the locking cover I (4), and the inner part of the elastic jacket I (5) is connected with the outer part at the right side of the input pipe (3);

the lower side of the air tap (9) is fixedly connected to the left side of the protective cover (8), and an outlet at the lower side of the air tap (9) is communicated with the inside of the protective shell (2);

the lower opening of the sleeve body (10) is fixedly connected with the upper opening of a through hole arranged in the center of the protective cover (8), a limiting ring body (16) is fixedly connected in the lower opening of the sleeve body (10), and a piston (15) is vertically and movably connected to the lower side in the sleeve body (10);

the piston (15) is positioned on the upper side of the limiting ring body (16), and a spring (11) is arranged between the upper side surface of the piston (15) and the inner top surface of the sleeve body (10);

the upper side of the transmission shaft (12) is movably connected in the center of the upper side of the sleeve body (10) through an end cover (13), the end part of the upper side of the transmission shaft (12) is fixedly connected with a hand wheel (14), the outer part of the lower side of the transmission shaft (12) is movably connected with the inner part of the center of the piston (15), and the end part of the lower side of the transmission shaft (12) is fixedly connected with a valve shaft on the upper side of the ball valve body (;

the left opening of the output pipe (20) is connected with the right output port of the ball valve body (1), the right side of the output pipe (20) is positioned in the output hole (19), and a second sealing ring (21) is arranged between the outside of the output pipe (20) and the inner wall of the output hole (19);

the elastic jacket II (18) is fixedly connected to the opening at the left side of the output hole (19) through a locking cover II (17), the inside of the elastic jacket II (18) is connected with the outside of the left side of the output pipe (20), and the outer conical surface at the left side of the elastic jacket II (18) is connected with the central conical hole at the right side of the locking cover II (17).

2. The underground welded corrosion-resistant ball valve for gas as claimed in claim 1, wherein the number of the first sealing rings (7) is at least two.

3. The buried welded corrosion-resistant ball valve for gas as recited in claim 1, wherein the number of the second sealing rings (21) is at least two.

4. The buried welded corrosion-resistant ball valve for gas use according to claim 1, wherein the inner diameter of the limit ring body (16) is smaller than the outer diameter of the piston (15).

5. The buried welding anti-corrosion ball valve for the gas as recited in claim 1, characterized in that compressed air is arranged inside the protective shell (2).