Pressing head pump structure

Abstract

A pressure head pump structure, mainly comprising: a fixed tube, the internal accommodation space is provided with a return assembly; The pressing and returning components of the head can reciprocate axially along the fixed tube and draw the inner solution; a blocking device is combined with the bottom end of the movable tube in a way that is close to the inner wall of the fixed tube, so that the blocking device and the movable tube are surrounded A gas-blocking chamber with backstop function is constructed, and the gas-blocking chamber is pressed with the movable tube, so that a part of the internal solution is stored in the gas-blocking chamber to form a gas-blocking layer. The present invention can achieve the advantages of preventing air permeability caused by the particles or abrasives of the inner solution on the tube wall, and can completely suck up the inner solution stored in the bottle along with the pressed movable tube.

Description

technical field [0001] The invention relates to a pressure head pump structure. Background technique [0002] The container design of the liquid detergent used for general cleaning usually has a head pump that can be pressed elastically to draw the inner solution of the container, so that the need to open and close the lid and pour out the inner solution can be avoided during use. The user can conveniently draw out the internal solution by pressing the pressure head pump without any inconvenience. [0003] Please refer to the No. 90200119 patent application of "indenter safety lock ring structure" in Taiwan, China, which mainly utilizes an indenter with an inner and outer tube body, which is assembled at the open end of a container, and the indenter's The inner tube will move with the pressure of the pressure head. There is a piston and an elastic member at the bottom of the inner tube. When the inner tube is pressed down, the piston can draw out the inner solution of the c...

AI Technical Summary

Problems solved by technology

[0004] However, although the existing structural design can achieve the effect of conveniently drawing the solution in the container, if the solution in the container is in the form of particles, such as industrial hand-washing cream, facial cleanser with scrub effect, etc. When the outer tube and the inner tube of the head are in use, the wall surface is easily worn by the particles of the inner solution, which may cause a gap and cannot be tightly sealed, so that the effect of compressing the piston to draw the inner solution is reduced, and even loses its due effect. On the whole, its practicability is poor, and there is still a need for improvement

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