Air sealing body of valve free of heat-resistant imprinting layer and manufacturing method thereof

Abstract

The invention discloses an air sealing body of a valve free of a heat-resistant imprinting layer and a manufacturing method thereof, and belongs to the technical field of air sealing bodies. The air sealing body comprises a main air inlet channel, a branch air inlet channel and a cavity; the main air inlet channel is connected with the cavity through the branch air inlet channel in one-way circulation; the air sealing body is characterized in that the main air inlet channel, the branch air inlet channel and the cavity are formed through hot pressing of two cavity films and two valve films; the two valve films are arranged between the two cavity films; two bent and continuous flow guide lines are arranged below the branch air inlet channel, and a flow guide air channel is formed between the two flow guide lines; the branch air inlet channel is communicated with the cavity through the flow guide air channel; and the air sealing body is prepared by a specific manufacturing method. According to the obtained air sealing body of the valve free of the heat-resistant imprinting layer, the impact of airflow on the valve films can be reduced, the valve films are protected against deformation, and meanwhile, the sealing effect of the valve films can be enhanced.

Description

technical field [0001] The invention relates to the technical field of air sealing bodies, in particular to a Muji valve air sealing body and a manufacturing method thereof. Background technique [0002] Most of the traditional air seals are coated with a heat-resistant layer and then heat-sealed to form the air inlet of the valve. However, this method has too many problems and has been gradually eliminated. Instead, it can form a one-way flow without coating a heat-resistant embossing layer. The valve design is referred to as MUJI valve in the industry. For example, the patent application number 201610478707.2 mentions the inflatable airbag without heat-resistant layer design. [0003] Although the air seal body on the market has gradually adopted the air seal body designed by MUJI valve, in order to narrow the channel of the air inlet channel entering the cavity, speed up the gas flow rate, and facilitate the valve film to fit after the inflation is completed In other wor...

AI Technical Summary

Problems solved by technology

[0005] In addition, there is no gradient treatment or guidance between the main inlet and the sub-inlets in the air seals on the market, and the airflow is not smooth enough, resulting in a relatively large air pressure for the main inlet, which is not conducive to the flow of air from the main airway. into the airway, which is also in dire need of improvement

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