公开(公告)号：US20240299964A1

公开(公告)日：2024-09-12

申请号：US18513892

申请日：2023-11-20

Applicant: NINGBO LAO PLASTIC TECHNOLOGY CO., LTD.

Inventor： Chengyong WANG

IPC: B05B11/10

CPC classification number: B05B11/10

Abstract: The present invention discloses a full-plastic vacuum pump head, relates to the technical field of pump heads, wherein the pump head comprises a button, an upper one-way valve, a flexible rubber pump body, a lower one-way valve and a cap, the button is movably installed in the lid, the button and the cap engage with each other by sliding, a nozzle communicating with the upper one-way valve is connected with the button, the nozzle, the upper one-way valve, the flexible rubber pump body and the lower one-way valve are communicated via a liquid passage, the flexible rubber pump body is made of flexible rubber, a flexible cushioning cavity is provided in the flexible rubber pump body, when the button is subjected to pressure, liquid in the flexible cushioning cavity is guided out from the upper one-way valve, when the button is released, the liquid is guided into the flexible cushioning cavity via the lower one-way valve. A vessel equipped with the full-plastic vacuum pump head, comprising a cap, the full-plastic vacuum pump head and a vessel body. In the present invention, no spring is employed, the entire pump head is made of plastics, wherein the flexible rubber pump head is made of flexible rubber, assembly difficulty of the entire product is reduced and the recovery of the entire product is improved.