The utility model relates to the technical field of explosion -proof motor connection, concretely is a spring buckle formula explosion -proof motor plug bolt anti -drop device, including plug -in portion and socket portion, the connecting end of plug -in portion is equipped with the plug -in post, the inside of socket portion's connecting end is equipped with the plug -in hole, the connecting end outer wall of plug -in portion is equipped with a plurality of buckle seat around, the inside of buckle seat is equipped with the elastic buckle piece that can overturn and along the elastic displacement of plug -pull direction, and the connecting end outer wall of socket portion is equipped with a plurality of docking seat around, the inside of docking seat all is equipped with the positioning post that is opposite to the elastic buckle piece. This spring buckle formula explosion -proof motor plug bolt anti -drop device strengthens the self -adaptability and reliability, has realized convenient installation and maintenance, effectively prevented the plug bolt drop, improved the stability and security of long -term use simultaneously.
