Liquefied petroleum gas steel cylinder valve with automatic adjusting function

Abstract

The utility model discloses a liquefied petroleum gas steel cylinder valve with an automatic adjusting function, which relates to the technical field of gas steel cylinder valves, comprises a valve, and is characterized in that an adjusting disc is arranged above the valve, a valve rod positioned in the valve is arranged on the lower end surface of the adjusting disc, and the valve rod is connected with the valve. The valve rod is sleeved with a sealing piece, the sealing piece comprises a first sealing ring, a composite ceramic layer, a second sealing ring and a sealing expansion block, the first sealing ring is arranged in the sealing piece, the composite ceramic layer is arranged in the first sealing ring, the second sealing ring is arranged in the composite ceramic layer, and the sealing expansion block is arranged in the second sealing ring. And a sealing expansion block is arranged in the second sealing ring. The sealing effect of the valve is enhanced, and the overall practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas cylinder valves, in particular to a liquefied petroleum gas cylinder valve with an automatic adjustment function. Background Art

[0002] Valves are pipe accessories used to open and close pipes, control flow direction, and adjust and control the parameters (temperature, pressure, and flow) of the conveying medium. According to their functions, they can be divided into shut-off valves, check valves, regulating valves, etc. Valves are installed on liquefied petroleum gas cylinders, and the existing gas cylinder valves all have automatic adjustment functions, which are more convenient to use.

[0003] For example, patent No. CN202111544987.X discloses a valve for intelligent control of liquefied petroleum gas cylinders, whose structure includes a valve body, an air inlet is provided at the bottom of the valve body, an air outlet is fixedly connected to one side of the valve body, a connecting hole is provided on one side of the valve body, the air inlet is connected to the connecting hole, a slide groove is provided on the top inner wall of the connecting hole, a valve core is slidably installed in the slide groove, a screw is threadedly installed on the top of the valve body, the bottom end of the screw is fixedly connected to the top of the valve core, a mounting plate is fixedly installed on the outer side of the valve body, a sound reminder mechanism is provided on the mounting plate, a cavity is provided on the mounting plate, and the cavity A lifting rod is slidably installed in the body, a connecting block is fixedly installed on the outer side of the lifting rod, an annular block is fixedly installed on the outer side of the screw, an annular groove is opened on the outer side of the annular block, the outer side of the connecting block is slidably connected to the inner wall of the annular groove, and a light reminder mechanism is provided on the lifting rod. The utility model drives the crankshaft to rotate by a motor, the crankshaft drives the connecting pipe to move eccentrically, the connecting pipe drives the power rod to move, the power rod drives the push rod to reciprocate up and down, the push rod drives the lifting block to reciprocate, and the lifting block drives the striking block to reciprocate to strike the metal bowl, so that the metal bowl makes a sound, reminding that the valve core is in an open state at this time;

[0004] The sealing ring used in the valve in this patent has a simple structure and is a flat ring, and its sealing effect is poor, thereby affecting the use effect of the valve. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a liquefied petroleum gas cylinder valve with an automatic adjustment function, which solves the problem that the sealing ring has a simple structure and is a flat ring, and its sealing effect is poor, thus affecting the use effect of the valve.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a liquefied petroleum gas cylinder valve with automatic adjustment function, including a valve, characterized in that an adjustment disk is arranged above the valve, a valve stem located inside the valve is arranged on the lower end face of the adjustment disk, a sealing member is sleeved on the outside of the valve stem, the sealing member includes a first sealing ring, a composite ceramic layer, a second sealing ring and a sealing expansion block, a first sealing ring is arranged inside the sealing member, a composite ceramic layer is arranged inside the first sealing ring, a second sealing ring is arranged inside the composite ceramic layer, and a sealing expansion block is arranged inside the second sealing ring.

[0007] Preferably, a connector is provided on one side of the valve, and an external thread is provided on the surface of the connector.

[0008] Preferably, a data table is provided above the valve, and a pointer is provided inside the data table.

[0009] Preferably, a flow port is provided inside the valve.

[0010] Preferably, a gasket located inside the flow port is provided below the valve stem, and a sealing layer is provided below the gasket.

[0011] Preferably, a handle is provided above the adjusting disk, and an anti-slip pad is provided on the surface of the handle.

[0012] Preferably, a through hole is provided inside the sealing member, and the valve stem and the sealing member are connected through the through hole.

[0013] Beneficial Effects

[0014] The utility model provides a gas cylinder valve. Compared with the prior art, it has the following beneficial effects:

[0015] The seal is sleeved on the outside of the valve stem and located inside the valve. The first sealing ring inside the seal contacts the inner wall of the valve when the valve stem rotates, thereby improving the sealing effect. The composite ceramic layer enhances the service life of the seal, and the second sealing ring inside it also enhances the overall sealing effect. At the same time, the sealing expansion block inside the second sealing ring is made of rubber material, so it will expand the whole and ensure its sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a schematic cross-sectional view of the three-dimensional structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the sealing structure of the utility model.

[0019] In the figure: 1. valve; 2. data sheet; 3. adjusting disk; 4. connector; 5. flow port; 6. valve stem; 7. seal; 8. gasket; 9. sealing layer; 10. first sealing ring; 11. composite ceramic layer; 12. second sealing ring; 13. sealing expansion block; 14. through hole. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-3 The utility model provides a technical solution: a liquefied petroleum gas cylinder valve with automatic adjustment function, comprising a valve 1, an adjusting disk 3 is arranged above the valve 1, a valve stem 6 located inside the valve 1 is arranged on the lower end surface of the adjusting disk 3, a sealing member 7 is sleeved on the outside of the valve stem 6, a connector 4 is arranged on one side of the valve 1, an external thread is arranged on the surface of the connector 4, a data table 2 is arranged above the valve 1, a pointer is arranged inside the data table 2, and the sealing member 7 is sleeved on the outside of the valve stem 6 and located inside the valve 1, and then the first sealing ring 10 inside the sealing member 7 contacts the inner wall of the valve 1 when the valve stem 6 rotates;

[0022] The sealing member 7 comprises a first sealing ring 10, a composite ceramic layer 11, a second sealing ring 12 and a sealing expansion block 13. The first sealing ring 10 is arranged inside the sealing member 7, a flow port 5 is arranged inside the valve 1, a gasket 8 located inside the flow port 5 is arranged below the valve stem 6, and a sealing layer 9 is arranged below the gasket 8 to improve the sealing effect. The composite ceramic layer 11 enhances the service life of the sealing member 7, and the second sealing ring 12 inside the sealing member 7 also enhances the overall sealing effect.

[0023] A composite ceramic layer 11 is provided inside the first sealing ring 10, a second sealing ring 12 is provided inside the composite ceramic layer 11, a sealing expansion block 13 is provided inside the second sealing ring 12, a handle is provided above the adjusting disk 3, a non-slip pad is provided on the surface of the handle, a through hole 14 is provided inside the sealing member 7, the valve stem 6 and the sealing member 7 are connected through the through hole 14, and the sealing expansion block 13 inside the second sealing ring 12 is made of rubber material, so it will expand the whole body to ensure its sealing effect.

[0024] During operation, the seal 7 is first sleeved on the outside of the valve stem 6 and located inside the valve 1. The first sealing ring 10 inside the seal 7 contacts the inner wall of the valve 1 when the valve stem 6 rotates, thereby improving the sealing effect. The composite ceramic layer 11 enhances the service life of the seal 7, and the second sealing ring 12 inside it also enhances the overall sealing effect. At the same time, the sealing expansion block 13 inside the second sealing ring 12 is made of rubber material, so it will expand the whole to ensure its sealing effect.

[0025] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A liquefied petroleum gas cylinder valve with automatic adjustment function, comprising a valve (1), characterized in that: An adjusting disk (3) is arranged above the valve (1); a valve stem (6) located inside the valve (1) is arranged on the lower end surface of the adjusting disk (3); a sealing member (7) is sleeved on the outside of the valve stem (6); the sealing member (7) comprises a first sealing ring (10), a composite ceramic layer (11), a second sealing ring (12) and a sealing expansion block (13); the first sealing ring (10) is arranged inside the sealing member (7); the composite ceramic layer (11) is arranged inside the first sealing ring (10); the second sealing ring (12) is arranged inside the composite ceramic layer (11); and the sealing expansion block (13) is arranged inside the second sealing ring (12).

2. The liquefied petroleum gas cylinder valve with automatic adjustment function according to claim 1, characterized in that: A connector (4) is provided on one side of the valve (1), and an external thread is provided on the surface of the connector (4).

3. The liquefied petroleum gas cylinder valve with automatic adjustment function according to claim 1, characterized in that: A data table (2) is arranged above the valve (1), and a pointer is arranged inside the data table (2).

4. The liquefied petroleum gas cylinder valve with automatic adjustment function according to claim 1, characterized in that: The valve (1) is provided with a flow port (5) inside.

5. The liquefied petroleum gas cylinder valve with automatic adjustment function according to claim 4, characterized in that: A gasket (8) located inside the flow port (5) is arranged below the valve stem (6), and a sealing layer (9) is arranged below the gasket (8).

6. The liquefied petroleum gas cylinder valve with automatic adjustment function according to claim 1, characterized in that: A handle is arranged above the adjusting disk (3), and an anti-slip pad is arranged on the surface of the handle.

7. The liquefied petroleum gas cylinder valve with automatic adjustment function according to claim 1, characterized in that: A through hole (14) is provided inside the sealing member (7), and the valve stem (6) and the sealing member (7) are connected through the through hole (14).

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