Miniature sprayer pump core and two-stroke pressing method thereof

Abstract

The invention relates to a miniature sprayer pump core and a two-stroke pressing method thereof, which are designed for solving the technical problem of poor structure design of a traditional miniature sprayer. The miniature sprayer pump core is characterized in that the internal diameter of a connecting cover is in a hexagonal rhombus shape, the external diameter of the connecting cover is provided with a convex fastener, the connecting cover is sleeved into rod convex ribs of a piston rod, and the external diameter convex ribs of the connecting cover are buckled with an internal diameter groove of a pump body; the pump body is provided with a hollow cavity from the convex space of the internal diameter to a large spring in a compression state, and the height H of the hollow cavity is larger than the height h of each convex rib of a lower valve and an upper valve. When a head cap is pressed, the head cap drives the piston rod, a small spring, the lower valve and a piston to simultaneously move downwards, the large spring is stressed to deform, the piston stops in the convex space of the internal diameter of the pump body, and the large spring is in a compression state. When the head cap is continuously pressed, the head cap drives the piston rod and the lower valve to simultaneously and continuously move downwards, the small spring is stressed to deform, a diversion hole of the lower valve is exposed out of the external diameter, and high-pressure liquid enters a diversion groove of the lower valve in the piston rod through the diversion hole. The invention is suitable for pressing-type miniature sprayers with various kinds of low-density liquid.

Description

technical field [0001] The invention relates to a pump core of a pressing sprayer, in particular to a pump core of a miniature sprayer and a two-pass pressing method thereof. Background technique [0002] Micro sprayer refers to a small manual sprayer made according to the working principle of the sprayer (or called Bernoulli's principle). The fast and high-pressure liquid is atomized and sprayed out after being atomized by resistance. It is mainly used for spraying cosmetic liquids such as perfume, gel water, and moisturizing water. , and spraying of liquids such as pesticides and water. It generally consists of a head cap, a pump core, an outer cover, and a suction pipe. The pump core is generally composed of a spring, a ball, a piston, a valve stem, and a pump body. The pump core is fixed on the outer cover, and the pump core is connected with the head cap and the suction pipe. According to its pressing mode and different structures, it is divided into a hand button spra...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the above-mentioned deficiencies, the present invention provides the field with a micro-sprayer pump core and a second-pass pressing method for achieving spray effect through two-pass pressing, so as to solve the problems of poor spraying effect, complicated sealing structure, assembly and automatic production of existing micro-sprayers. inconvenient technical issue

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