Contactless underwater travel switch

The utility model provides a contactless underwater travel switch. The contactless underwater travel switch comprises a shell, one end of the shell is connected with a connector socket, a PCB (Printed Circuit Board) connected with the connector socket is arranged in the shell, and a switch type Hall sensor is arranged on the PCB; the other end of the shell is connected with a pressing handle through a shaft sleeve; a magnetic core is arranged on the pressing handle; and the pressing handle is connected with the connector socket through a pressure spring. The utility model has the advantages of firm structure, full sealing, reliable conversion, strong corrosion resistance and long service life; the problems that a traditional travel switch is poor in sealing performance when working underwater, a contact is prone to abrasion and arcing ablation, the service life is short, and the contact is prone to being bonded with foreign matter are solved. 本实用新型提供了一种无触点水下行程开关，包括外壳；所述外壳的一端连接有连接器插座，外壳内设有与连接器插座连接的PCB板，PCB板上设有