CN217030032U

CN217030032U - High leakproofness gas valve

Info

Publication number: CN217030032U
Application number: CN202220972974.6U
Authority: CN
Inventors: 郭庆锋
Original assignee: Tianjin Binhai New Area Tanggu Chengfan Valve Co ltd
Current assignee: Tianjin Binhai New Area Tanggu Chengfan Valve Co ltd
Priority date: 2022-04-24
Filing date: 2022-04-24
Publication date: 2022-07-22
Anticipated expiration: 2032-04-24

Abstract

The utility model discloses a high-sealing gas valve which comprises a shell, wherein a hard block is fixedly connected to the inner surface of the shell, an elastic layer is fixedly connected to the upper surface of the hard block, a rotating shaft is connected to the inner surface of the shell in a threaded manner, a ball valve is fixedly connected to the lower surface of the rotating shaft, a baffle is fixedly connected to the inner surface of the ball valve, a lifting cylinder is slidably connected to the inner surface of the shell, and a fixing block is fixedly connected to the inner part of the lifting cylinder. According to the utility model, through designing the lifting cylinder, the first sealing gasket only has friction in the vertical direction, the second sealing gasket only has friction in the horizontal direction, the wear resistance of the device is improved, the sealing performance of the device is improved, and through designing the ball valve and the fixing block, the pressure intensity on one side of the fixing block is small, and the pressure intensity on one side of the air outlet is realized, so that self-locking is realized under higher pressure.

Description

High leakproofness gas valve

Technical Field

The utility model relates to the field of valves, in particular to a high-tightness gas valve.

Background

The valve is a control part in a fluid conveying system, has the functions of stopping, regulating, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure, is used for valves of a fluid control system, has various varieties and specifications from the simplest stop valve to various valves used in an extremely complicated automatic control system, can be used for controlling the flow of various fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like, and can make an opening and closing part do lifting, sliding, swinging or rotating motion by depending on a driving or automatic mechanism, so that the size of the flow passage area of the valve is changed to realize the control function of the valve.

Some existing high-tightness gas valves have the following defects:

1. the existing high-tightness gas valve has no self-locking function, so that the tightness is poor when the pressure is too high;

2. the existing high-tightness gas valve can generate abrasion after being used for a long time, so that the tightness is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a high-tightness gas valve.

In order to achieve the purpose, the utility model adopts the following technical scheme: a high-sealing gas valve comprises a shell, wherein a hard block is fixedly connected to the inner surface of the shell, an elastic layer is fixedly connected to the upper surface of the hard block, a rotating shaft is connected to the inner surface of the shell in a threaded manner, a ball valve is fixedly connected to the lower surface of the rotating shaft, and a baffle is fixedly connected to the inner surface of the ball valve;

the inner surface of the shell is connected with a lifting cylinder in a sliding mode, and a fixing block is fixedly connected inside the lifting cylinder.

As a further description of the above technical solution:

the right surface of casing is provided with the gas outlet, the left surface of casing is provided with the air inlet.

As a further description of the above technical solution:

a first sealing gasket is arranged between the lifting cylinder and the shell, and a second sealing gasket is arranged between the lifting cylinder and the ball valve.

As a further description of the above technical solution:

the lower surface of the ball valve is fixedly connected with a rubber pad, and the section of the rubber pad is trapezoidal.

As a further description of the above technical solution:

the fixed block is positioned on the rear inner wall of the right side of the lifting cylinder.

As a further description of the above technical solution:

the upper surface of the rotating shaft is fixedly connected with a knob.

The utility model has the following beneficial effects:

1. compared with the prior art, this high leakproofness gas valve through designing a lift section of thick bamboo, makes first sealed pad only have the friction of vertical direction, and the second sealed pad only has the friction of horizontal direction, increases device wear resistance, increases device leakproofness.

2. Compared with the prior art, the high-tightness gas valve realizes small pressure on one side of the fixed block and realizes self-locking under larger pressure with the pressure on one side of the gas outlet by designing the ball valve and the fixed block.

Drawings

Fig. 1 is a schematic view of an internal structure of a high-sealability gas valve according to the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

fig. 3 is a schematic partial structural view of a high-tightness gas valve according to the present invention;

fig. 4 is a schematic view of an overall structure of a high-sealability gas valve according to the present invention.

Illustration of the drawings:

1. a housing; 2. a hard mass; 3. an elastic layer; 4. a rubber pad; 5. a ball valve; 6. a fixed block; 7. an air outlet; 8. an air inlet; 9. a baffle plate; 10. a rotating shaft; 11. a lifting cylinder; 12. a knob.

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 obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but 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 thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 4, the present invention provides a high-sealability gas valve: including casing 1, casing 1's right surface is provided with gas outlet 7, a discharge for gas, casing 1's left surface is provided with air inlet 8, an entering for gas, casing 1's internal surface fixedly connected with hard piece 2, the last fixed surface of hard piece 2 is connected with elastic layer 3, be used for with the rubber pad 4 between contact, casing 1's internal surface threaded connection has pivot 10, the lower fixed surface of pivot 10 is connected with ball valve 5, ball valve 5's internal surface fixedly connected with baffle 9, a control for gas, ball valve 5 is when closing, when baffle 9 is perpendicular with the air current direction promptly, baffle 9 left side and air current contact, ball valve 5's right side and gas outlet runner, fixed block 6 contacts.

The internal surface sliding connection of casing 1 has a lift section of thick bamboo 11 for reduce the wearing and tearing of sealing layer, be provided with first sealed pad between a lift section of thick bamboo 11 and the casing 1, be provided with the sealed pad of second between a lift section of thick bamboo 11 and the ball valve 5, the lower fixed surface of ball valve 5 is connected with rubber pad 4, the cross-section of rubber pad 4 is trapezoidal, the inside fixedly connected with fixed block 6 of a lift section of thick bamboo 11, fixed block 6 is located lift section of thick bamboo 11's right side rear inner wall department, the last fixed surface of pivot 10 is connected with knob 12.

The working principle is as follows: the air outlet 7 of the air inlet 8 is connected with the pipelines respectively, the rotating shaft 10 is rotated through the knob 12, the rotating shaft 10 drives the ball valve 5 to rotate and lift, the lifting cylinder 11 of the ball valve 5 rotates, the lifting cylinder 11 slides with the shell 1, when the valve is opened, air normally flows, the rubber pad 4 and the elastic layer 3 are in light touch, the ball valve rotates 90 degrees anticlockwise, the rubber pad 4 and the elastic layer 3 are extruded, the baffle 9 is perpendicular to the air flow direction, the rear part of the right side of the ball valve 5 is in contact with the fixed block 6, the front part of the right side is in contact with the flow channel, under the left-side gas pressure, the pressure of the ball valve 5 is unbalanced, and the ball valve 5 is pushed to have the trend of anticlockwise rotation.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments, or make equivalent substitutions and improvements to part of the technical features of the foregoing embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A high leakproofness gas valve, includes casing (1), its characterized in that: the inner surface of the shell (1) is fixedly connected with a hard block (2), the upper surface of the hard block (2) is fixedly connected with an elastic layer (3), the inner surface of the shell (1) is in threaded connection with a rotating shaft (10), the lower surface of the rotating shaft (10) is fixedly connected with a ball valve (5), and the inner surface of the ball valve (5) is fixedly connected with a baffle (9);

the inner surface of the shell (1) is connected with a lifting cylinder (11) in a sliding mode, and a fixing block (6) is fixedly connected inside the lifting cylinder (11).

2. The high-tightness gas valve according to claim 1, wherein: the right surface of casing (1) is provided with gas outlet (7), the left surface of casing (1) is provided with air inlet (8).

3. The high-sealability gas valve according to claim 1, wherein: a first sealing gasket is arranged between the lifting cylinder (11) and the shell (1), and a second sealing gasket is arranged between the lifting cylinder (11) and the ball valve (5).

4. The high-tightness gas valve according to claim 1, wherein: the lower surface of the ball valve (5) is fixedly connected with a rubber pad (4), and the section of the rubber pad (4) is trapezoidal.

5. The high-sealability gas valve according to claim 1, wherein: the fixed block (6) is positioned on the rear inner wall of the right side of the lifting cylinder (11).

6. The high-sealability gas valve according to claim 1, wherein: the upper surface of the rotating shaft (10) is fixedly connected with a knob (12).