Combustible toxic gas alarm easy to disassemble and assemble

The utility model discloses a combustible toxic gas alarm easy to disassemble and assemble, which comprises an alarm main body, a first connecting plate is arranged on the back of the alarm main body, a second connecting plate is fixedly connected to one side, far away from the alarm main body, of the first connecting plate, and a first fixing plate is arranged on one side, far away from the first connecting plate, of the second connecting plate. Side plates are rotationally connected to the two sides of the first fixing plate, magnetic strips are arranged on the sides, away from the first fixing plate, of the first fixing plate and the side plates at equal intervals, and transverse plates are arranged on the sides, away from the magnetic strips, of the first fixing plate at equal intervals. The utility model relates to the technical field of combustible poisonous gas alarms, and solves the problems that in the prior art, a combustible poisonous gas alarm adopts a bolt fixing mode and needs to be installed th