Frame metal plate of portable lithium battery helium detector equipment

The frame metal plate comprises main metal plate frames and a connecting metal plate, the main metal plate frames and the connecting metal plate are provided with mounting openings, mounting frames are arranged on the peripheral sides of the inner walls of the mounting openings, rod grooves are formed in the sides, close to each other, of the upper main metal plate frame and the lower main metal plate frame, and abutting rods are arranged in the rod grooves in a sliding mode. Driving grooves are formed in the end faces of the sides, away from the mounting frame, of the abutting rods, inclined parts are arranged on the inner walls of the sides, away from each other, of the driving grooves of the upper set of abutting rods and the lower set of abutting rods, and the inclined parts gradually incline inwards from the abutting rods away from the opposite sides to the abutting rods close to the opposite sides; according to the transparent plastic plate mounting and dismounting device, the mounting frame and the abu