Special air pump for pneumatic lumbar support

Abstract

The invention relates to a special air pump for a pneumatic lumbar support. The special air pump for the pneumatic lumbar support comprises a base, a shaft connecting and embedding piece, a shaft connecting and embedding piece steel ball, an air chamber secondary assembly, a sealing chamber outer cover, a sealing gasket and an air outlet upper cover; an air inlet hole and an air outlet hole are formed in the sealing chamber outer cover; a circle of loading air groove is further formed in the sealing chamber outer cover; at least one loading air hole is formed in the loading air groove; the sealing gasket is pressed on the sealing chamber outer cover and is combined to the loading air groove to form a loading air channel; an air inlet thin film and an air outlet thin film are formed in thesealing gasket; a loading air inlet hole is formed in the position corresponding to the loading air hole; a spring gasket is mounted on the sealing gasket; a spring mounting joint and an air outlet joint are processed on the air outlet upper cover; a spring is mounted in the spring mounting joint; the tail end of the spring is in contact with the spring gasket; and the top end of the spring is fixed by an air outlet upper cover steel ball. The air pump is simple in structure and easy to assemble, and the maximum output pressure can be adjusted.

Description

technical field [0001] The invention belongs to the field of electric air pumps, and in particular relates to an air pump which is used for adjusting a pneumatic waist support and can automatically adjust the maximum output air pressure. Background technique [0002] In recent years, with the strong development momentum of my country's automobile industry and the continuous improvement of per capita living standards, automobiles are no longer just office and transportation tools for government agencies and enterprises. Automobiles have become the first choice for household consumption and the main transportation for people to travel. tool. In addition to putting forward higher requirements for the brand, safety and quality of cars, people pay more attention to driving comfort, among which the comfort of car seats is very important. [0003] Existing car seats are suitable for various sitting postures and reduce the fatigue caused by long-term driving. Usually, a lumbar suppo...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a special air pump for pneumatic lumbar support to solve the technical problem that the existing air pump cannot adjust the pressure by itself when used on the pneumatic lumbar support, and the air bag on the lumbar support is easy to be inflated when applied to the pneumatic lumbar support.

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