Sealed circuit connection equipment for electrical engineering

The invention discloses sealed circuit connection equipment for electrical engineering, and relates to the technical field of circuit connection. Comprising a main body plug, the main body plug is fixedly connected with a butt joint shell, the main body plug is provided with a placement groove, the placement groove is a spiral groove, the main body plug is fixedly connected with a butt joint head, a cable is spirally wound on the placement groove outside the main body plug, and the main body plug is provided with an inner cavity. The cable and the butt joint head are connected in the inner cavity, the outer portion of the main body plug is in threaded connection with a first fixing ring, and the main body plug and the butt joint shell are jointly provided with a sealing assembly. According to the invention, the cable is spirally wound outside the main body plug, the fastening area of the cable is increased, then the first fixing ring extrudes the cable to form multi-directional fixation, and the situation tha