Liquid pump

Abstract

The invention discloses a liquid pump which at least comprises a pump body and a valve seat. The valve seat is installed at the lower end portion of the pump body, the pump body is an integral part integrally formed by the same material, the pump body comprises a shell with a hollow pump cavity and an elastic valve plate arranged at the bottom end portion of the shell, and the elastic valve plate is provided with a valve channel. The valve seat is arranged below the elastic valve plate in a matched mode, the valve seat comprises a valve body with a liquid flow channel, and the top of the valve body can be matched with the elastic valve plate in a sealed mode. The number of whole components of the liquid pump is small, the production cost is saved, product assembly is more convenient, product durability is high, and meanwhile all components in the liquid pump are basically made of recoverable plastics and can be fully recycled.

Description

technical field [0001] The invention relates to the field of cosmetic packaging containers, in particular to a liquid pump. Background technique [0002] Liquid pumps are widely used in the field of cosmetics to facilitate people's daily life. They are mainly used to pump out liquids in daily cleaning and skin care products such as hand sanitizer, shower gel, shampoo, facial cleanser, and moisturizing liquid. Existing liquid pumps have a variety of structural forms, which usually have pump body, piston rod, piston, head cap connecting rod, spring and other components. When the liquid needs to be pumped out, press the head cap connecting rod downward to make the piston The rod moves down to pump out the liquid pre-stored in the pump body. After the liquid is pumped out, let go of your hand, and under the elastic force of the spring, the piston rod moves upwards, so that the liquid is sealed inside the pump body again, which is very convenient to use. [0003] The liquid pum...

AI Technical Summary

Problems solved by technology

[0004] 1. In the current pump core, most of the lower valves use glass beads and steel balls. The lower valve and the pump casing need to be assembled separately after injection molding. This not only has a complex structure and low assembly efficiency, but also requires a variety of production materials. The production cost Higher, also causes the problem that the pump core product cannot be recovered as a whole;

[0005] 2. The lower part of the piston is easy to crack after long-term service;

[0006] 3. The head cap connecting rod is made of PP (polypropylene) material, and the piston head is made of POM (polyoxymethylene resin) material, so as to achieve the anti-loosening effect in the cooperation between the head cap connecting rod and the piston head. However, POM material is not conducive to Environmental recycling

Images