Fall prevention device of emergency power supply plug-in-plug-out module

The invention discloses a fall prevention device of an emergency power supply plug-in-plug-out module. The fall prevention device comprises a plug-in-plug-out module, a support plate, a pull ring, a plum screw, a fixed magnet, an inverted pin, a limiting groove, a belt, a pulley and a guide rail, wherein the plug-in-plug-out module is arranged on the support plate, the guide rail is arranged at the bottom of the plug-in-plug-out module, a pressing rivet nut hole is formed in the bottom of the support plate, the plum screw passes through the pressing rivet nut hole to be matched with the guide rail, the limiting groove is fixedly formed in a bottom surface of the interior of the plug-in-plug-out module, the fixed magnet is fixed at one end of the limiting groove, the inverted pin can move in the limiting groove, one end of the belt is connected to an end surface of the inverted pin, and the other end of the belt is connected with the pull ring. By the plug-in-plug-out module, the plum screw is blocked by a mutual effect between the fixed magnet and the inverted pin during the plug-out process so as to prevent the plug-in-plug-out module from falling off. The device has the characteristics of simplicity in structure and low cost, and moreover, the plug-in-plug-out module is prevented from falling off to cause damage and personal casualty.