Novel vacuum supplement hose

Abstract

The invention discloses a novel vacuum supplement hose which comprises a hose body made of hard metal. A connector is arranged at the end of the hose body and is composed of a bolt, a fastening nut and a movable nut, the bolt is provided with a cylindrical bolt head provided with a threaded section, the outer diameter of the threaded section corresponds to the inner diameter of the connected vacuum supplement hose, a through hole is arranged in the position of the center of the bolt, the bolt body is truncated cone-shaped, one end, with larger radius, of the truncated cone-shaped bolt body is connected with a cylinder head, an inner thread is arranged on the inner side face of the fastening nut and is matched with the thread of the bolt, one end, away from the bolt body, of the cylinder head is provided with the movable nut, and an inner thread is arranged on the inner side of the movable nut and is matched with the bolt head. By the arrangement, the novel vacuum supplement hose is high in connecting intensity, good in sealing performance, less prone to leakage and releasing, free of other tools for loading and unloading, easy, rapid and labor saving to operate and capable of being completed by hand.

Description

technical field [0001] The invention relates to the field of vacuum, in particular to a novel vacuum replenishing hose. Background technique [0002] In the production and operation site of the enterprise, there are often some equipment that use gas or liquid working medium. Pipes are used more and more in our daily life, and the popularity of vacuum materials also makes this situation even more, so it is also difficult to make up the joints of vacuum hoses, especially with oxygen, gas, compression This is especially true for thermal processing units that use air and nitrogen, hydrogen, argon, carbon dioxide, etc. as working media. The connection methods of hoses are generally connected by wire binding or pipe hoops. The common feature of these three connection methods is that the bundled or clamped hoses will be squeezed and deformed inwardly, relying on the inner surface or inner layer of the hose. The anti-slip friction resistance between the inner surface of the tube a...

AI Technical Summary

Problems solved by technology

The connection methods of hoses are generally connected by wire binding or pipe hoops. The common feature of these three connection methods is that the bundled or clamped hoses will be squeezed and deformed inwardly, relying on the inner surface or inner layer of the hose. The anti-slip friction resistance between the inner surface of the tube and the outer surface of the connecting tube core realizes sealing and connection. The connection force only occurs on the inner surface of the tube. It is difficult to guarantee the connection strength and sealing performance without using special tooling and tools. It is easy to leak or even fall off, and the loading and unloading operations are cumbersome and laborious

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