Gas one-way valve assembly

Abstract

The gas one-way valve assembly comprises a valve shell, a first sealing ring and a valve element, the first sealing ring and the valve element are arranged in the valve shell, the valve shell comprises a front-back through shell body and a shell cover fixedly arranged at the rear end of the shell body to seal a rear opening of the shell body, and a steam inlet pipe is arranged on the shell cover; the first sealing ring is a silica gel ring and comprises a main ring radially fixed in the valve shell 1, a clamping groove ring arranged on the inner circumferential wall of the main ring and a thin ring integrally formed in a ring opening of the main ring on the front side of the clamping groove ring, and the thin ring is in a horn shape with the front small and the rear large; the valve element comprises a rim body, a hemisphere arranged in the middle of the front side of the rim body and a cylinder arranged in the middle of the front end of the hemisphere, the valve element is arranged in the first sealing ring, the periphery of the rim body of the valve element is clamped and fixed in the clamping groove ring, and the hemisphere is inserted into the thin ring from the rear portion to be tightly attached to the thin ring in an inclined mode. The device is easy to machine, disassemble and assemble.

Description

Technical field

[0001] The invention relates to a gas one-way valve, in particular to a one-way valve for controlling steam output. [Background Technology]

[0002] Traditional gas one-way valves often use a valve stem and spring to achieve switching of the gas circuit. The processing and assembly precision of this type of gas one-way valve are both high, and it is also difficult to disassemble and assemble. [Summary of the invention]

[0003] The invention discloses a gas one-way valve which is easy to process and disassemble.

[0004] The present invention adopts the following technical solutions:

[0005] A gas one-way valve assembly comprises a valve housing, a first sealing ring and a valve core arranged inside the valve housing, the valve housing comprising a shell body that passes through from front to back and a shell cover fixedly arranged at the rear end of the shell body to close its rear opening, the shell cover being provided with a steam inlet pipe; the first sealing ring is a silicone ring, comprising a main ring radially fixed inside the valve housing 1, a clamping ring arranged on the inner peripheral wall of the main ring, and a thin ring integrally formed and arranged in the ring opening of the main ring on the front side of the clamping ring, the thin ring being in the shape of a trumpet with a small front and a large rear end; the valve core comprises a rim body, a hemisphere centrally arranged on the front side of the rim body, and a cylinder centrally arranged at the front end of the hemisphere, the valve core being arranged inside the first sealing ring, the peripheral edge of the rim body of which is clamped and fixed in the clamping ring, and the hemisphere of which is inserted into the thin ring from the rear to be obliquely and tightly attached to the thin ring; a second sealing ring is provided at the front end of the shell body, and a steam nozzle is provided in the second sealing ring.

[0006] As a preferred solution, the shell cover is screwed to the external thread section provided at the rear end of the shell body through the internal thread cavity provided on the inner surface of the shell cover, thereby being fixedly connected to the shell body.

[0007] As a preferred solution, the steam inlet pipe is radially arranged at the bottom of the shell cover.

[0008] As a preferred solution, horizontal wing plates are symmetrically provided on the left and right sides of the shell cover for easy installation.

[0009] As a preferred solution, the peripheral clamp of the main ring is fixed to the connection between the shell and the shell cover.

[0010] As a preferred solution, the second sealing ring is a silicone ring, including an outer ring and an inner ring integrally formed and arranged in the ring opening of the outer ring. The outer ring is fixed to the front end of the shell, and the inner ring is trumpet-shaped with a larger front and a smaller back and is arranged in the front opening of the shell.

[0011] As a preferred solution, the rear end of the steam nozzle is inserted into the inner ferrule so that the inner ferrule is tilted and closely attached to the steam nozzle.

[0012] As a preferred solution, the front end of the steam nozzle is integrally formed with a baffle, a third sealing ring is sleeved on the steam nozzle behind the baffle, and a nut for cooperating with the baffle is also threaded on the steam nozzle behind the third sealing ring.

[0013] As a preferred option, a fourth sealing ring is sleeved on the steam inlet pipe. The fourth sealing ring is an I-shaped silicone ring, including a connecting ring, a top ring integrally formed at the top of the connecting ring, and a bottom ring integrally formed at the bottom end of the connecting ring. An inner ring is integrally formed inside the ring opening of the top ring, and the inner ring is a trumpet shape with a larger top and a smaller bottom.

[0014] The invention adopts the mode of cooperating the hemisphere and the sealing ring to realize the steam circuit opening and closing, has few parts and is easy to assemble and disassemble, and the structure of each part is relatively simple and easy to process. In addition, the invention also has the function of preventing backflow.

Brief Description of the Drawings

[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0016] Figure 2 It is an exploded view of the overall structure of the above embodiment;

[0017] Figure 3 It is a cross-sectional view of the overall structure of the above embodiment. [Specific implementation method]

[0018] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] Reference Figure 1-3 :

[0020] A gas one-way valve assembly comprises a valve housing 1, a first sealing ring 2 and a valve core 3 arranged inside the valve housing 1.

[0021] The valve housing 1 comprises a through-hole housing 1.1 and a cover 1.2 fixedly mounted at the rear end of the housing 1.1 to seal its rear opening. The cover 1.2 is threadedly connected to the externally threaded section at the rear end of the housing 1.1 via an internally threaded cavity on its inner surface, thereby being fixedly connected to the housing 1. A steam inlet pipe 1.21 is radially provided at the bottom of the cover 1.2, and horizontal wings 1.22 are symmetrically provided on the left and right sides of the cover 1.2 for easy installation.

[0022] The first sealing ring 2 is a silicone ring, comprising a main ring 2.1 clamped around the connection between the shell 1.1 and the shell cover 1.2, a groove ring 2.2 provided on the inner wall of the main ring 2.1, and a thin ring 2.3 integrally formed in the ring opening of the main ring 2.1 on the front side of the groove ring 2.2. The thin ring 2.3 is trumpet-shaped with a small front and a large back.

[0023] The valve core 3 comprises a rim body 3.1, a hemispherical body 3.2 centrally located in front of the rim body 3.1, and a cylindrical body 3.3 centrally located at the front end of the hemispherical body 3.2. The valve core 3 is disposed inside the first sealing ring 2, with the periphery of the rim body 3.1 clamped and fixed in the clamping groove ring 2.2, and the hemispherical body 3.2 inserted into the thin ring 2.3 from the rear to be tilted and tightly attached to the thin ring 2.3.

[0024] A second sealing ring 4 is provided at the front end of the shell 1.1. The second sealing ring 4 is a silicone ring, comprising an outer ring 4.1 and an inner ring 4.2 integrally formed and arranged in the ring opening of the outer ring 4.1. The outer ring 4.1 is sleeved and fixed on the front end of the shell 1.1, and the inner ring 4.2 is trumpet-shaped with a larger front and a smaller back and is arranged in the front opening of the shell 1.1.

[0025] A steam nozzle 5 is further provided in the front opening of the housing 1.1. The rear end of the steam nozzle 5 is inserted into the inner ring 4.2 so that the inner ring 4.2 is tilted and closely attached to the steam nozzle 5. The front end of the steam nozzle 5 is integrally formed with a baffle 5.1. A third sealing ring 6 is sleeved on the steam nozzle 5.1 behind the baffle 5.1. A nut 7 for cooperating with the baffle 5.1 is also screwed on the steam nozzle 5 behind the third sealing ring 6.

[0026] A fourth sealing ring 8 is sleeved on the steam inlet pipe 1.21. This fourth sealing ring is an I-shaped silicone ring, comprising a connecting ring 8.1, a top ring 8.2 integrally formed at the top of the connecting ring 8.1, and a bottom ring 8.3 integrally formed at the bottom of the connecting ring 8.1. An inner ring 8.21 is integrally formed within the opening of the top ring 8.2. The inner ring 8.21 is trumpet-shaped, with a larger top and a smaller bottom.

[0027] During use, the steam inlet pipe 1.21 is connected to the steam supply device, and the steam nozzle 5 is connected to the steam container. The high-pressure steam in the steam supply device can automatically break the thin ring 2.3 on the first sealing ring 2 to open the steam path and enter the steam container. The greater the steam supply pressure, the tighter the inner ring 4.2 on the second sealing ring 4 fits against the steam nozzle 5, and the better the sealing effect.

[0028] When the steam supply device stops supplying steam and the air pressure inside it is equal to the air pressure in the steam container, the thin ring 2.3 can automatically reset to close the steam circuit.

[0029] If the air pressure in the steam supply device is lower than that in the steam container, the thin ring 2.3 will fit more tightly on the hemisphere 3.2, and the greater the pressure difference, the better the sealing effect, which can prevent the air in the steam container from flowing back into the steam supply device.

Claims

1. A gas one-way valve assembly, characterized in that: The valve core comprises a valve housing and a first sealing ring and a valve core arranged inside the valve housing. The valve housing comprises a shell body that passes through from front to back and a shell cover fixedly arranged at the rear end of the shell body to close its rear opening, and the shell cover is provided with a steam inlet pipe; the first sealing ring is a silicone ring, comprising a main ring radially fixed inside the valve housing, a clamping ring arranged on the inner circumferential wall of the main ring, and a thin ring integrally formed and arranged in the ring opening of the main ring on the front side of the clamping ring, and the thin ring is trumpet-shaped with a small front and a large back; the valve core comprises a rim body, a hemisphere centrally arranged on the front side of the rim body, and a cylinder centrally arranged at the front end of the hemisphere. The valve core is arranged inside the first sealing ring, the peripheral edge of the rim body of which is clamped and fixed in the clamping ring, and the hemisphere is inserted into the thin ring from the rear to be obliquely and tightly attached to the thin ring; a second sealing ring is provided at the front end of the shell body, and a steam nozzle is provided in the second sealing ring.

2. A gas one-way valve assembly according to claim 1, characterized in that: The shell cover is screwed with the external thread section provided at the rear end of the shell body through the internal thread cavity provided on the inner surface of the shell cover, thereby being fixedly connected to the shell body.

3. A gas one-way valve assembly according to claim 2, characterized in that: Horizontal wings are symmetrically provided on the left and right sides of the shell cover for easy installation.

4. A gas one-way valve assembly according to any one of claims 1 to 3, characterized in that: The peripheral clamp of the main ring is fixed at the connection between the shell and the shell cover.

5. A gas one-way valve assembly according to claim 1, characterized in that: The second sealing ring is a silicone ring, including an outer ring and an inner ring integrally formed and arranged in the ring opening of the outer ring. The outer ring is sleeved and fixed on the front end of the shell, and the inner ring is trumpet-shaped with a larger front and a smaller back and is arranged in the front opening of the shell.

6. A gas one-way valve assembly according to claim 5, characterized in that: The rear end of the steam nozzle is inserted into the inner ring so that the inner ring is tilted and closely attached to the steam nozzle.

7. A gas one-way valve assembly according to claim 5 or 6, characterized in that: The front end of the steam nozzle is integrally formed with a baffle, a third sealing ring is sleeved on the steam nozzle behind the baffle, and a nut for cooperating with the baffle is screwed on the steam nozzle behind the third sealing ring.

8. The gas one-way valve assembly according to claim 1, characterized in that: The steam inlet pipe is radially arranged at the bottom of the shell cover.

9. A gas one-way valve assembly according to claim 8, characterized in that: A fourth sealing ring is sleeved on the steam inlet pipe. The fourth sealing ring is an I-shaped silicone ring, including a connecting ring, a top ring integrally formed at the top of the connecting ring, and a bottom ring integrally formed at the bottom end of the connecting ring. An inner ring is integrally formed inside the ring opening of the top ring, and the inner ring is a trumpet shape with a larger top and a smaller bottom.

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