Liquid filling quantifying mechanism

The utility model discloses a liquid filling quantifying mechanism which comprises a supporting frame body, a mounting plate piece and a liquid collecting tank, a liquid level meter inserting hole is formed in the mounting plate piece, an ultrasonic liquid level meter is fixedly inserted in the liquid level meter inserting hole, an automatic control valve is fixedly installed at the side end of the mounting plate piece, and the liquid collecting tank is fixedly connected with the ultrasonic liquid level meter. The lower end of the automatic control valve is communicated with a Z-shaped liquid discharge pipe, the lower end of the ultrasonic liquid level meter is provided with a liquid level meter end, the side end of a lower port of the Z-shaped liquid discharge pipe is aligned to the liquid level meter end, the upper end of the liquid collection tank is of an opening structure, and the upper end of the opening of the liquid collection tank is aligned to the lower ends of the Z-shaped liquid discharge pipe and