Atomizing pump head

Abstract

The invention relates to an atomizing pump head capable of controlling spray mist pressure to be uniform. The atomizing pump head consists of a pump core, a middle cover and a nozzle head. The pump core is composed of a pump core body, an upper piston, a back pushing plug, a sealing ring and the like. An upper chamber is formed between the back pushing plug and the upper piston. A back pushing plug body is arranged at the center of the upper portion of the back pushing plug, and a cone body is arranged at the top of the back pushing plug. A round table surface is arranged at the center of theupper piston and is further matched with the cone body of a back pushing pillar to form a reverse check valve. A connecting groove is formed in the center of the piston, and a lower chamber and the upper chamber are connected through the connecting groove. A damping hole is formed in the tail end of the connecting groove. The cross sectional area of the bottom of the upper chamber is larger than that of the top of the lower chamber. A pressure relief hole is formed in the lower chamber of the pump core body of the atomizing pump head, and a pressure relief groove is formed in the lower half section of the lower chamber. The spray mist pressure of the atomizing pump head is not influenced by the action speed and force magnitude of fingers, a good mist spraying effect can be stably achievedand the phenomenon of water running at a nozzle opening is avoided.

Description

technical field [0001] The invention relates to the field of household articles, in particular to a spray pump head capable of controlling uniform spray pressure. Background technique [0002] In the field of household products such as cosmetics, washing products, and plant cultivation, the spray pump head is a very common auxiliary accessory for liquid containers. It is used to press the liquid in the bottle to let the mixed fluid of air and liquid flow out of the small hole quickly. The pressure near the small hole is small, and the air pressure above the liquid surface in the container is strong, and the liquid flows along the bottom of the small hole. The thin tube rises up, and after flowing out from the upper opening of the thin tube, it is impacted by the air flow and spreads in the air in the form of spray to form small particles of air suspension. [0003] The current relatively mature spray pump head is provided with a patent No. CN201521117894.9 "a new type of sp...

AI Technical Summary

Problems solved by technology

[0006] However, the pump core still has some deficiencies. First, its upper channel has a smaller structure, and the liquid flows faster between the upper and lower channels. When the pressure in the upper channel is released, the liquid in the lower channel goes up quickly, replenishing In the channel on the road, there is a pressure difference between the upper and lower channels, which will form a spray again, which will affect people's use experience

[0007] Second, after its lower channel is formed by pressing to the maximum, it will maintain a relatively high pressure after spraying. At this time, release the finger pressure. During the spring reset process, the pressure will still exert pressure on the liquid inlet pump at the lower end of the pump core. The beads generate pressure, which affects the speed and amount of liquid entering, making it difficult for the liquid to be completely filled after the pump core is reset, and a small amount of air will be mixed in

Affects user experience

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