Direct current cabinet and handcart door closing interlocking device

The utility model relates to the technical field of switch cabinets, and discloses a direct current cabinet and handcart door closing interlocking device, which comprises a handcart type direct current cabinet body, the top of the handcart type direct current cabinet body is provided with a canopy, and the left side and the right side of the handcart type direct current cabinet body are provided with ventilation slots; the top of the front side of the handcart-type DC cabinet body is provided with a switch mechanism, and the switch mechanism comprises a box body. According to the interlocking device, when the required time is up, a timing sensor transmits a signal to a central processing unit, the central processing unit starts a servo motor through a control module, then the output end of the servo motor drives a rotating shaft to rotate, the rotating shaft drives a gear to rotate, and the gear drives a toothed plate to move towards the inner side through the action of tooth meshing; the toothed plate drives