Device for preventing low voltage of vehicle-mounted battery and use method

The invention relates to the technical field of vehicle-mounted batteries, and discloses a vehicle-mounted battery low-voltage prevention device and a use method.The vehicle-mounted battery low-voltage prevention device comprises a battery box, a storage battery is arranged on the inner side of the battery box, a cover plate is arranged at the bottom of the storage battery, the cover plate is slidably connected into the battery box, driving shafts are arranged on the left side and the right side of the battery box, and hubs are fixedly connected to the front sides and the rear sides of the driving shafts; a frame is arranged on the inner side of the hub, and low-voltage prevention mechanisms are arranged on the front side and the rear side of the battery box. According to the low-voltage prevention device for the vehicle-mounted battery, through the arranged low-voltage prevention mechanism, in the process that a telescopic rod moves inwards and outwards, lantern rings at the four front corners and the four r