The utility model provides a
concentrator with an explosion-proof function, which relates to the technical field of concentrators and comprises a
bakelite box, an insulating base plate is fixed on the inner bottom surface of the
bakelite box, a butt-joint seat is fixed at the top of the insulating base plate close to the edge of one side, a butt-
joint cavity is formed in one side of the butt-joint seat, and the butt-
joint cavity is communicated with the butt-joint seat. According to the utility model, the connecting ends of a plurality of strands of
copper core stranded wires are inserted into the
butt joint cavity, the end parts of the plurality of strands of
copper core stranded wires are intensively placed between the inner sides of the two arc-shaped tightening sheets, and then the adjusting bolt is rotated to enable the pressing block to slide downwards, so that the
butt joint cavity is closed, and the
butt joint cavity is closed. In the sliding process, the two arc-shaped tightening pieces are relatively compressed and tightened through the two arc-shaped restraining pieces, then the end portions of the multiple strands of
copper core stranded wires located between the two arc-shaped tightening pieces are pressed tightly, looseness is prevented, the multiple strands of copper core stranded wires are tightly attached to the butt joint portion under the condition that the end portions of the multiple strands of copper core stranded wires are shrunk and pressed tightly, and the butt joint effect is good. And the phenomenon of
electric spark explosion can also be prevented.