Foam pump

Abstract

The invention relates to a foam pump which is designed for solving the technical problems that the existing similar products are poor in foam effect due to poor structural design, are mainly poor in gas storage and gas outlet effects, and are difficult to be used as foam with large liquid outlet quantity. The large ring of the foam pump comprises an inner ring and an outer ring, the inner ring is an air storage part, the outer ring is a decorative ring, and the inner wall of the bottom of an inner groove of the air storage part is provided with an internal thread, and is characterized in that an inner cavity where the air storage part and the decorative ring are sleeved in a sealed mode is provided with a piston part, a connecting part and a jumping valve, and the piston part is clamped and fixed to the connecting position of the connecting part and the jumping valve; an outer diameter loose blade of the piston part abuts against the inner wall of the inner cavity in a sealed mode, the inner cavity is divided into an upper inner cavity body and a lower inner cavity body through the piston part, and a vent hole is formed in the position, between the connecting part and the jumping valve, of the piston part. When a head cap is pressed, the head cap drives the jumping valve, the piston part, the connecting part and the pump core internal part to move downwards, the vent hole of the piston part is closed, and air in the lower inner cavity and liquid flowing out of the valve rod at the pump core are fused to spray foam.

Description

technical field [0001] The invention relates to a miniature foam pump, which is a foam pump. Background technique [0002] Foam pump is a kind of pump body that can produce foam spraying. According to its use and size, it is generally divided into industrial foam pump, fire fighting foam pump, and micro foam pump. Among them, the working principle of the micro-foam pump is to use the liquid to form a certain negative pressure around the liquid column after being sprayed at high speed. The negative pressure generates to attract air into the mixing part, so that the air and liquid can be mixed again and quickly pass through the screen to form foam. . This type of foam pump is mainly used in cosmetic bottle containers such as facial cleanser. For example, the application number 201410362552.7 published in the Chinese patent literature, the application publication date is 2014.12.17, and the invention name is "foam pump"; The pump body also includes a foam generator. The foam ...

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Problems solved by technology

[0003] In order to overcome the above-mentioned deficiencies, the object of the present invention is to provide a foam pump in the art, so that it can solve the problem of poor foam effect caused by poor structural design of existing similar products, mainly because of poor gas storage and gas outlet effects, and it is difficult to use as a large pump. Technical problems in the use of foam with liquid output

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