Novel gas valve

Abstract

The utility model provides a novel gas valve, and belongs to the technical field of valves. The gas valve solves the problems that an existing gas valve is low in sealing performance and prone to leakage. The novel gas valve comprises a valve body with a connecting end, a pipe cap is connected to the connecting end of the valve body in a threaded mode, a valve seat expanding outwards in the radial direction is arranged at the position, close to the connecting end, of the valve body, a sealing groove is formed between the connecting end and the valve seat in a spaced mode, and a sealing device playing a sealing role is arranged in the sealing groove. The sealing structure has the advantages of improving the sealing performance and preventing leakage.

Description

Technical Field

[0001] The utility model belongs to the technical field of valves and relates to a gas valve, in particular to a new type of gas valve. Background Art

[0002] The gas valves currently on the market have low sealing performance at the connection ends, which are prone to leakage and affect their use. Summary of the invention

[0003] The utility model aims to provide a new type of gas valve with high sealing performance and anti-leakage in view of the above problems existing in the prior art.

[0004] The purpose of the utility model can be achieved through the following technical solutions: A new type of gas valve, including a valve body with a connecting end, characterized in that a pipe cap is threadedly connected to the connecting end of the valve body, a radially outwardly expanded valve seat is provided on the valve body adjacent to the connecting end, a sealing groove is provided between the connecting end and the valve seat, and a sealing device for sealing is provided in the sealing groove;

[0005] The sealing device comprises a sealing inner layer and a sealing curved layer formed on the sealing inner layer. The sealing curved layer is composed of a sealing abutting layer abutting against the valve seat and a sealing pressing layer abutting against the pipe cap. A sealing contact is formed between the sealing abutting layer and the sealing pressing layer.

[0006] In the above-mentioned novel gas valve, the valve body is provided with a knob.

[0007] Compared with the prior art, the novel gas valve has the advantages of improved sealing performance and leakage prevention. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a three-dimensional diagram of the novel gas valve.

[0009] Figure 2 It is a cross-sectional view of the novel gas valve.

[0010] In the figure, 1, connecting end; 2, valve body; 3, pipe cap; 4, valve seat; 5, sealing inner layer; 6, sealing abutment layer; 7, sealing compression layer; 8, sealing contact; 9, knob. DETAILED DESCRIPTION

[0011] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0012] like Figure 1 , Figure 2As shown, the novel gas valve comprises a valve body 2 with a connecting end 1, a pipe cap 3 is threadedly connected to the connecting end 1 of the valve body 2, a radially outwardly expanded valve seat 4 is provided at a position adjacent to the connecting end 1 on the valve body 2, a sealing groove is spaced between the connecting end 1 and the valve seat 4, and a sealing device for sealing is provided in the sealing groove, the sealing device comprises a sealing inner layer 5 and a sealing curved layer formed on the sealing inner layer 5, the sealing curved layer is composed of a sealing abutting layer 6 abutting against the valve seat 4 and a sealing pressing layer 7 abutting against the pipe cap 3, a sealing contact 8 is formed between the sealing abutting layer 6 and the sealing pressing layer 7, and the pipe cap 3 is tightened and pressed on the sealing inner layer 5 and pressurizes the sealing pressing layer 7, forcing the sealing pressing layer 7 to contact with the sealing abutting layer 6 to form a sealing contact 8, and the abutting layer of the sealing pressing layer 7 is tightly attached to the valve seat 4, so as to achieve an efficient sealing effect.

[0013] Preferably, the valve body 2 has a knob 9 .

[0014] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0015] Although the present invention uses the terms such as connection end 1, valve body 2, pipe cap 3, valve seat 4, sealing inner layer 5, sealing abutting layer 6, sealing pressing layer 7, sealing contact 8, knob 9, etc., it does not exclude the possibility of using other terms. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A novel gas valve, comprising a valve body (2) with a connection end (1), characterized in that: A pipe cap (3) is threadedly connected to the connection end (1) of the valve body (2); a radially outwardly expanded valve seat (4) is provided on the valve body (2) at a position adjacent to the connection end (1); a sealing groove is provided between the connection end (1) and the valve seat (4); and a sealing device for sealing is provided in the sealing groove; The sealing device comprises a sealing inner layer (5) and a sealing curved layer formed on the sealing inner layer (5); the sealing curved layer is composed of a sealing abutting layer (6) abutting against the valve seat (4) and a sealing pressing layer (7) abutting against the pipe cap (3); a sealing contact point (8) is formed between the sealing abutting layer (6) and the sealing pressing layer (7).

2. A new type of gas valve according to claim 1, characterized in that: The valve body (2) is provided with a knob (9).

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