Corrugated Hose Seal Fittings

Abstract

The invention relates to a corrugated hose sealing joint, comprising: a joint body (1) comprising a head (12) and a tail (11), with a longitudinal through hole (13) inside, characterized in that: the inside of the joint body (1) There is a step (14), the outer wall of the head (12) is provided with external threads, and the inner end of the outer wall of the head (12) is provided with an annular groove (15), and a sealing ring (2) is arranged in the annular groove (15). ); the inner wall of the longitudinal through hole (13) of the tail (11) is provided with an internal thread; the inner wall of the corrugated hose port is inserted with a support ring (3) for supporting the corrugated hose, and the outer wall of the corrugated hose port is sequentially sleeved with a seal Ring (4), washer (5), compression nut (6), clip (7) and compression cap (8). Compared with the prior art, the present invention not only ensures the locking and fixing between the joint body and the corrugated software, but also realizes reliable sealing, and supports the ring tube to prevent the corrugated hose from being deformed by being squeezed by the sealing ring.

Description

technical field [0001] The invention relates to a corrugated hose sealing joint. Background technique [0002] In the field of locomotives and urban rail, the speed sensor for the traction motor is required to be miniaturized due to the limited installation and operation space. With the increasing requirements of the existing operating environment, it is necessary to realize the common ground connection between the cable shielding layer and the speed sensor housing in the miniaturized space of the speed sensor to achieve good EMC performance; at the same time, in order to achieve cable protection, it is necessary Add a corrugated hose, and the connection between the corrugated hose and the outlet end of the speed sensor requires good fixing, locking and sealing. [0003] However, the existing corrugated hose connector is a common standard, and there are three disadvantages for the connection with the speed sensor: 1) The corrugated hose connector is mainly assembled with th...

AI Technical Summary

Problems solved by technology

[0003] However, the existing corrugated hose connector is a common standard, and there are three disadvantages for the connection with the speed sensor: 1) The corrugated hose connector is mainly assembled with the hose connector, and when connected with the speed sensor, the speed sensor shell The internal and external diameters do not match the corrugated hose joints, making it difficult to miniaturize the speed sensor; 2) The corrugated hose used to protect the cable cannot be directly fixed, locked and sealed, resulting in the corrugated hose at the outlet end of the speed sensor It cannot be fixed, which will bring the hidden danger of the cable being stressed, and the sealing performance cannot meet the requirements; 3) The existing corrugated hose joint is long, and the contact resistance when the cable shielding layer is connected to the housing is relatively large. It will seriously affect the common ground effect between the cable shielding layer and the speed sensor housing, resulting in weakened EMC performance

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