Double-channel metal bellow and manufacturing process thereof

Abstract

The invention discloses a double-channel metal bellow and a manufacturing process thereof. The double-channel metal bellow comprises an outer shell, wherein a sealing column is rotationally connected to the side face of the outer shell, a cavity is formed in the surface of one end of the sealing column, an internal connecting hole is formed in the middle of the surface of one side of the cavity, external connecting holes are formed in two ends of the surface of the other side of the cavity, one end of the internal connecting hole and one end of the external connecting hole are located on the surfaces of the two sides of the sealing column correspondingly, an outer pipe is fixedly welded to the surface of the other side of the outer shell, the surface of one end of the outer pipe is located on one side of the sealing column, an inner pipe is fixedly connected to the center of the interior of the outer pipe, an arc-shaped sealing gasket is fixedly connected to the surface of one end of the inner pipe, the surface of the arc-shaped sealing gasket is slidably connected to the surface of one side of the sealing column, and a threaded ring is fixedly connected to the surface of the other end of the inner pipe. Therefore, the use convenience and stability can be greatly improved, and the high efficiency and precision of combined installation and adjustment are guaranteed.

Description

technical field [0001] The invention relates to the field of metal bellows, in particular to a double-channel metal bellows and its manufacturing process. Background technique [0002] In the current industrial production, the use of metal bellows is very common, which can not only ensure the smoothness of the pipeline, but also can be bent to adjust the direction. In order to ensure the stability of use, some positions need to use a double-pass bellows structure. [0003] However, the existing double-pass corrugated pipe structure is mostly installed on two pipes side by side by two corrugated pipes. It is conducive to stabilizing the two channels of pipe cutting, and it is easy to cause the direction of the internal medium to be disordered, which affects the stability and accuracy of use, and needs to be improved. Contents of the invention [0004] Aiming at the problems existing in the prior art, the object of the present invention is to provide a double-channel metal ...

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Problems solved by technology

[0003] However, most of the existing double-way bellows structures are installed on two pipes side by side by two bellows, which not only results in a larger pipeline volume, is not conducive to combined connection and installation positioning, and is likely to cause interference, but also does not It is conducive to stabilizing the two channels of pipe cutting, and it is easy to cause the direction of the internal medium to be disordered, which affects the stability and accuracy of use, and needs to be improved.

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