Height position adjusting device for diaphragm of diaphragm pump

The utility model belongs to the technical field of diaphragm pumps, and discloses a height position adjusting device for a diaphragm of a diaphragm pump, which comprises a support seat, an inserting hole is arranged on the support seat, a reference surface is arranged on the lower surface of the support seat, an altimeter is arranged in the inserting hole and is arranged in the inserting hole through a jackscrew, and the height position adjusting device is arranged on the support seat. A diaphragm fixing hole is formed in the center position of the reference face, four positioning pins are installed on the periphery of the diaphragm fixing hole, a diaphragm is connected into the diaphragm fixing hole in a matched mode, a probe at the bottom of the altimeter makes contact with the diaphragm, and an installation column is arranged below the diaphragm. The diaphragm is accurately assembled by increasing or reducing the number of the gaskets, the clearance volume of the diaphragm pump is accurately controlled, a