Method for Making Foam Pump Head Structure

In view of this, in order to make up for the defects of the existing technology, the utility model discloses a Foam Pump(KEXON) head structure, which can not only ensure that the users normally extract liquid from the packaging container, but also avoid excess liquid dropping, which is beneficial to improving the utilization rate of the product and the sanitation of the environment, and avoids the external contamination and dry knot of the liquid remaining on the pressure nozzle.

In order to solve the above technical problems, the utility model adopts the following technical scheme: a pump head structure, including a riser connected to the inside of the liquid storage container, a pump pipe movably arranged in the riser, and a first piston, which is fixed to the outer wall of the pump pipe and is immediately between the pump pipe and the riser, and a second piston, which is tightly connected to the outer wall and upright of the pump pipe. Between the inner walls of the pipe, the second piston and the first piston are separated by a distance and form a suction chamber. The side wall of the pump tube is provided with a through hole through which the suction chamber is connected to the inner cavity of the pump tube.

Due to the distance between the second piston and the first piston, a suction chamber is formed. In the process of pumping the liquid of the pump head, driven by the pump pipe, the first piston moves back and forth in the inner chamber of the riser, resulting in repeated enlargement and reduction of the suction chamber between the first piston and the second piston. Moreover, as the side wall of the pump pipe is provided with through holes, the suction cavity is connected to the inner cavity of the pump pipe through the through holes. When the pump fluid is pumped, the pump pipe and the suction cavity are filled with liquid. At the moment when the suction cavity is reduced to increase, a vacuum will appear in the inner part of the pump pipe, resulting in a pressure difference between the inner part and the outer part of the pump head.

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