The invention relates to a lightweight anti-static foam pump and its material production process, designed to solve the technical defects of unreasonable internal space layout, absence of dual piston and connecting seat structure in existing similar products. The key structure is as follows: the internal piston of the foam pump includes a large piston and a small piston. A valve needle is sleeved into the inner through hole of the valve rod from one end, and fixedly buckled with one end of the small piston sleeved at the other end of the valve rod. A spring washer is sleeved on the outer diameter of the valve rod at the buckling connection between the small piston rod and the valve needle. A protruding ring rib is arranged on the outer diameter of the valve rod at the valve needle sleeving end; one end of the spring abuts against the ring rib, and the other end abuts against the spring washer. The outer diameter of the small piston is in sealed contact with the fine inner cavity wall above the elastic sleeve of the pump body, and the outer diameter of the large piston is in sealed contact with the large inner cavity wall above the fine inner cavity inside the pump body. A duckbill valve is connected to the valve rod via a connecting seat, and vent grooves are arranged on the outer diameter of the flange ring of the large piston. The overall height of the foam pump is reduced.

Area Code: CN

Application Number: CN202010425144.7