Wall-penetrating device for stainless steel corrugated hose for gas delivery

Abstract

The invention relates to a wall-penetrating device matched with a stainless steel corrugated hose for gas delivery. In the conventional wall-penetrating box, the threaded joint of a gas angle valve and a base elbow is easy to loosen, so that gas leaks and a leakage test is difficult to perform. The wall-penetrating device for the stainless steel corrugated hose for gas delivery comprises a cassette seat, and is characterized in that: the lateral surface of the cassette seat is provided with a gap, a 90-degree base elbow is fixed on the bottom surface of the cassette seat, the side end of the base elbow is provided with a thread interface, and a gas angle valve matched with the thread interface is arranged at the outer end of the base elbow. Through the wall-penetrating device, great convenience is brought to installation construction, torsion generated when the gas angle valve is installed on the base elbow is greatly reduced, and the strength requirement and the installation requirement on the cassette seat can be reduced; meanwhile, the potential safety hazard of gas leakage because the joint of the gas angle valve and the base elbow loosens is eliminated, and the leakage test is convenient to perform.

Description

technical field [0001] The invention relates to a wall-out fixing device when a hose is concealed, in particular to a wall-out device used in conjunction with a stainless steel corrugated hose for gas transmission. Background technique [0002] In recent years, my country has begun to promote the application of stainless steel corrugated hoses for gas transmission, and cities such as Beijing, Shanghai, Shenyang, and Shenzhen have been widely promoted and applied. At present, the open laying method is generally used in engineering design and on-site installation and construction, and the application of direct burying in the wall is rarely used. On the one hand, the construction of concealed burying is difficult, and on the other hand, the supporting products for the wall are not perfect, which will affect the stainless steel corrugated hose for gas transmission. Because the hidden burial will not affect the interior decoration effect, with the improvement of the living standa...

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Problems solved by technology

[0003] In order to solve the above existing problems, Chinese utility model patent 200820165925.1 discloses a non-fixed-length stainless steel corrugated pipe wall outlet box for gas, but there are still some problems in actual use: 1. In order to ensure that the gas angle valve is screwed through the pipe thread The large torsion force generated when reaching the base elbow adopts a protective tube on the side of the cassette seat, but due to the existence of the protective tube during installation, the operation is very difficult; 2. When the gas angle valve is screwed to the base bend through the pipe thread When tightening the head, because the angle when tightening may not match the actual angle requirements, the position of the angle valve is fixed by adding a winding raw material belt or back-tightening the angle valve, thus leaving a potential safety hazard. Screw the gas angle valve counterclockwise When the handle is turned, the valve body does not rotate, but the threaded connection between the gas angle valve and the base elbow is loosened, resulting in gas leakage; 3. After the installation is completed, a leak test is required for the threaded connection between the gas angle valve and the base elbow. Since the threaded connection is inside the cartridge seat, it is difficult to do a leak test; 4. The installation of the panel is not ideal, because the panel is directly fixed on the cartridge seat, the position of the cartridge seat directly determines the position of the panel, there is no room for adjustment, and it is easy to produce errors , not flush with the wall, protruding or sinking into the wall

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