External spring emulsion pump with anti-blocking ventilation structure

Abstract

The invention discloses an external spring emulsion pump with an anti-blocking ventilation structure. A pump chamber is included, a bottle locking cap is arranged at the upper end of the pump chamber, a pumping assembly used for pumping out emulsion is arranged in the pump chamber, the pump chamber is sleeved with a cushion valve, and the cushion valve is located on the inner side of the bottle locking cap and used for being matched with the bottle locking cap to be locked on a bottle opening of a container bottle in a sealed mode. Ventilation holes are formed in the side face of the pump chamber, the cushion valve is provided with an elastic and flexible soft sleeve, and the soft sleeve is arranged on the outer side of the pump chamber in a sleeving mode and seals and covers the ventilation holes on the inner side so that feed liquid cannot enter the ventilation holes from the outside of the pump chamber. The structure is simple, materials are prevented from entering the emulsion pump and blocking a channel from the ventilation holes, so that ventilation is smooth, and the phenomenon of bottle collapse is prevented.

Description

【Technical field】 [0001] The invention relates to an external spring lotion pump with an anti-blocking ventilation structure. 【Background technique】 [0002] Existing lotion pumps are usually equipped with ventilation holes to replenish air in the emulsion container to prevent the interior of the emulsion container from being shriveled and deformed due to the reduction of the solution during use. Due to the limitation of the structure, the usual ventilation holes need to prevent the container from The problem of emulsion overflow caused by the emulsion entering the pump chamber from the ventilation hole, the ventilation hole is a small hole on the pump body, the existing emulsion pump is no problem for general applications, but for some Emulsions with high material viscosity often suffer from poor ventilation after a period of use. In addition, the air intake gap between the central hole of the lock cover and the main column is limited, and the central hole has a certain de...

AI Technical Summary

Problems solved by technology

[0002] Existing lotion pumps are usually equipped with ventilation holes to replenish air in the emulsion container to prevent the interior of the emulsion container from being shriveled and deformed due to the reduction of the solution during use. Due to the limitation of the structure, the usual ventilation holes need to prevent the container from The problem of emulsion overflow caused by the emulsion entering the pump chamber from the ventilation hole, the ventilation hole is a small hole on the pump body, the existing emulsion pump is no problem for general applications, but for some Emulsions with high material viscosity often suffer from poor ventilation after a period of use

In addition, the air intake gap between the central hole of the lock cover and the main column is limited, and the central hole has a certain depth for the positioning of the main column when it moves up and down. After a period of use, the material sticks to the main column and causes the central Closure of the hole will affect the ventilation and cause the bottle to collapse

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