Novel extrusion type foam pump

Abstract

The invention discloses a novel extrusion type foam pump. The novel extrusion type foam pump comprises a container used for storing liquid and a foam pump body connected with an opening of the container. The foam pump body comprises an air bag body, a seat cover, a diverter, a one-way gas-liquid valve, a lower one-way valve and a bubble filter. The air bag body is provided with extruding glue capable of being extruded, the diverter is arranged in the seat cover, the one-way gas-liquid valve is arranged above a gas-liquid mixing seat of the diverter, the one-way gas-liquid valve controls the one-way inlet liquid of a liquid outlet of the diverter and the one-way inlet air of an air inlet passage, the lower one-way valve is arranged in a container connecting seat and located above a divertermounting seat, the lower one-way valve covers a pressure hole of the diverter to control the one-way air inlet of the pressure hole. The pressure generated by extruding the extruding glue to push theair and liquid through respective passages to converge to form foam, and after releasing the extruding glue, the foam is aspirated into an air bag cavity through an upper one-way valve. The novel extrusion type foam pump realizes convenient use and is good in foam outlet effect, the liquid in the container can be converted into foam by simply extruding the extruding glue, and effort is saved in use.

Description

technical field [0001] The invention relates to a foam generator for extruding containers, in particular to a novel extruding foam pump. Background technique [0002] The foam pump is the packaging of common daily chemical cleaning products. The foam pump is designed through the internal structure, and the liquid and gas containing the foaming agent are mixed by pressure to form foam, and the foam flows out through the filter evenly and finely for use. [0003] The general basic structure of the foam pump is an air chamber that provides the gas required for mixing foam and a liquid chamber that provides the liquid required for mixing foam, and has a pressure source that provides the gas and liquid required for mixing foam, and a gas and liquid chamber for mixing foam. aisle. The patents of various foam pumps are to produce the unique structure and performance of their respective foam pumps through different designs of these general basic structures; [0004] The commonly u...

AI Technical Summary

Problems solved by technology

[0005] Although the above-mentioned press-type foam pump has a simple structure, it is inconvenient to use and has the following problems:

[0006] When using, you need to fix the liquid material container first, and then press the press nozzle to spit out the foam. This operation usually requires two hands. One hand fixes the liquid material container and presses the pressure nozzle at the same time, and the other hand receives the foam, which makes it inconvenient to use. ;

[0007] In order to ensure that the piston driven by the press mouth can return to its original position smoothly after pressing, the piston is reset by spring force, and in order to ensure the seal between the cylinder and the piston, a tight fit will be formed between the cylinder and the piston, which causes the cylinder and piston The relative motion resistance between them is very large, so the spring force of the reset piston is relatively large, which results in a large force to press the press mouth, resulting in inconvenient use;

[0008] Since the process of use is to take the foam first and then apply it, it is impossible to take the foam and apply it at the same time, resulting in inconvenient use;

[0009] Chinese patent application number 201410574155.6 proposes a squeeze-type foam pump solution, but this solution needs to rely on the container of the foam pump to be able to squeeze and reset to assist the use of the foam pump. The foam pump itself cannot independently have the function of converting foam, which is very inconvenient to use

[0010] The Chinese patent application No. 201710816100.5 that is being published also proposes a scheme of an extruded foamer. Claim 1 of this scheme cannot become an independently feasible extruded foamer scheme, because claim 1 lacks a The technical point of providing the liquid material pressure necessary for the bubbler, and claim 1 of this scheme also lacks the technical point of supplementing the gas in the air cavity after the air in the air cavity is squeezed out, and these two technical points are to realize a complete Necessary for the foam generator;

[0011] This solution sets the pressing body, and separates two independent air chambers and liquid chambers through the baffle on the pressing body, and the air chamber and the liquid chamber are provided with independent pressing glue, so that the pressure of the air chamber and the liquid chamber cannot be consistent. Coordination, making it difficult for gas and liquid to form foam when mixed;

[0012] In this scheme, an air chamber and a liquid chamber are directly arranged on the pressing body, and pressing glue is arranged on both the air chamber and the liquid chamber, which leads to two possibilities: one is that when the liquid fails to fill most of the liquid chamber, it will cause The air above the liquid chamber is expelled by squeezing the liquid chamber, and the liquid cannot form foam; second, when the liquid is mostly filled with the liquid chamber, due to the large difference in density between the gas and the liquid, the liquid chamber and the air chamber are squeezed at the same time. Extruding rubber will have the effect of soft air cavity and hard liquid cavity, and the use effect is very poor;

[0013] In this solution, the liquid chamber is arranged on the pressing body. Since the gas-liquid mixture for generating foam requires more air, the pressing body is larger, so the liquid chamber on the pressing body will also be larger, which will cause the liquid chamber to be filled with liquid. More pressing times are required, so when using the extrusion foamer with this structure for the first time, it takes multiple pressings to extrude the foam, which makes it difficult to use

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