Automobile tire pressure detector

The utility model discloses an automobile tire pressure detector in the field of tire pressure monitoring devices, which comprises a device body, the device body comprises a frame, a pressing device and a water tank, the pressing device and the water tank are both arranged in the frame, the frame is of a hollow cavity structure with a door structure at one end, and a motor box is arranged at the bottom end of the frame. The pressing device comprises a chassis, a rotating rod and a fixing plate, the chassis is arranged on the top end surface of the frame, a threaded hole structure is formed in the middle of the chassis, the rotating rod is meshed and fixed in the threaded hole structure, a round frame is arranged at the bottom end of the rotating rod, and the bottom end surface of the round frame is welded and fixed to the top end of the fixing plate; a fixing roller is arranged at the bottom end of one side of the fixing plate, a tire is fixed to the outer side of the fixing roller, a belt is arranged on the