Pump body air cylinder bottom fixing device

The utility model provides a pump body air cylinder bottom fixing device, which belongs to the technical field of pump body air cylinder fixing devices and comprises fixing seats and mounting plates fixedly mounted on the lower end faces of the fixing seats, an adjusting mechanism is arranged between the left fixing seat and the right fixing seat, and the adjusting mechanism comprises an adjusting box. The worm is rotationally installed in the middle of an inner cavity of the adjusting box, worm wheels are rotationally installed on the front side and the rear side of the inner cavity of the adjusting box, transmission rods are rotationally installed in inner cavities of the worm wheels on the front side and the rear side, fixing sleeves are installed at the two ends of each transmission rod in a threaded mode, and a buffering cavity is formed in the fixing base; a buffering mechanism is arranged in an inner cavity of the buffering cavity. Through the arrangement of the adjusting mechanism, the distance betwee