External spring pump distributor with safety outlet valve

Abstract

The invention discloses an external spring pump distributor with a safety outlet valve. The external spring pump distributor comprises a pressing head, a main column, an auxiliary column, a piston, apump chamber, a spring and a lock bottle cap, wherein the pressing head is mounted on the main column, the main column is arranged in the pump chamber, the auxiliary column is connected to the lower end of the main column, the piston is arranged outside the main column and the auxiliary column in a sleeving manner, and a lock cap capable of fixing the main column to the pump chamber is fixed to the pump chamber; a cover turning edge which is turned outwards and then turned downwards to extend out is arranged on the outer side of the upper end of the lock cap, the upper end of the pump chamberis inserted and fixed to the inner side of the cover turning edge, the lock cap is provided with a locking opening protruding upwards above the cover turning edge, and the outer side of the locking opening is provided with outer threads; and the upper end of the main column is provided with a locking turning edge which is turned outwards and turned downwards to extend out to sleeve the outer sideof the locking opening, and the inner side of the locking turning edge is provided with internal threads in threaded fit with the outer threads, so that a pump core consisting of the main column, theauxiliary column, the piston, the pump chamber, the spring, a glass bead and the lock cap can be independently stored and transported, and different pressing heads and the lock bottle cap are in cooperation as required, and use is flexible.

Description

【Technical field】 [0001] The invention relates to an external spring pump distributor with a safety outlet valve. 【Background technique】 [0002] Food safety is getting more and more attention. The general food pump is the pump dispenser. After starting to use, its outlet is always open. The inside of the pump communicates with the outside through the outlet. Due to the attraction of food, it is easy to attract mosquitoes and other insects. And the material body is polluted, and the dust and impurities in the air will also pollute the material body. [0003] In addition, most of the existing pump distributors adopt the structural design of the built-in spring. The metal spring directly contacts the material body, which is easy to corrode the metal spring and is not environmentally friendly. Moreover, pump dispensers generally have an integral structure, that is, the pump core, bottle lock cap and press head are assembled and fixed. During assembly, the bottle lock cap is fi...

AI Technical Summary

Problems solved by technology

[0003] In addition, most of the existing pump distributors adopt the structural design of built-in springs. The metal springs directly contact the material body, which is easy to corrode the metal springs and is not environmentally friendly.

Moreover, pump dispensers generally have an integral structure, that is, the pump core, bottle lock cap and press head are assembled and fixed. During assembly, the bottle lock cap is fixed on the pump core through the outer lock cap, inner lock cap, etc., which is not enough. flexible

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