Pressing pump provided with elastic body

A pressing pump provided with an elastic body comprises a body, a lock cover, a main column, an auxiliary column, a piston and a valve, the piston is arranged on the auxiliary column, the auxiliary column is inserted into a pipe body part of the main column, and the pipe body part is matched with a main column channel; the connecting part of the lock cover is inserted into the body, and the seat plate is attached to the flange; the upper flange is attached to the radial ribs of the circular ring seat plate, the radial rib plates on the upper portions of the steps are inserted into the cylindrical seat, the radial rib plates support the radial plates of the cylindrical seat, the steps support the lower end of the axial portion of the cylindrical seat, the circular ring seat plate and the upper flange between every two adjacent radial ribs form an upper air channel, and the cylindrical seat between every two adjacent radial rib plates form a lower air channel. In a natural state, the piston blocks the air suppl