Automobile battery state detection device

The utility model belongs to the technical field of automobile batteries, and discloses an automobile battery state detection device, which comprises a base, two fixing plates and a worm gear are fixed at the top of the base, the worm gear is positioned between the two fixing plates, the tops of the two fixing plates are slidably connected with a movable frame, the inner side of the movable frame is rotatably connected with a worm, and the worm gear is positioned between the two fixing plates. The worm is in meshed connection with the worm gear, a rotating rod is arranged at one end of the moving frame and connected with the worm, a sliding groove is formed in the top of the moving frame, and a limiting frame is rotationally connected to the end, close to the sliding groove, of the top of the moving frame; according to the utility model, the worm gear and the worm are arranged, and the worm is engaged with the worm gear through rotation of the worm, so that the worm rolls on the worm gear of a half circle, th