The utility model relates to cable installation technical field, concretely is a kind of cable head explosion-proof shell quick installation device, including two shell bodies, shell groove is established in the outer wall center of two shell bodies, and the inside of two shell body grooves is installed with fixed component, and fixed component includes collar, fixed plate and rotating block, two collars are located at the outer wall of two shell bodies respectively, and two fixed plates are fixedly installed at the both ends of collar, and inner cavity is established in the shell body, and the inside of inner cavity is provided with limit component, in the utility model, cable can be placed in the middle of two shell bodies, two shell bodies can make cable seal in shell body interior by positioning block and positioning groove, two collars are placed at the both ends of shell body respectively, by rotating
threaded rod, make
threaded rod embed in the inner plate groove of another collar, and then tighten the nut, the installation work of shell body can be completed.