Low-noise air pump

Abstract

The invention discloses a low-noise air pump, comprising an air pump body. The air pump body comprises a pump head cover. The bottom of the pump head cover is provided with a relief chamber; the upperend face of the pump head cover is provided with an exhaust head. The low-noise air pump also comprises an air flow buffer device that comprises a buffer cover; the buffer cover hermetically covers the upper end face of the pump head cover; the upper end face of the buffer cover is provided with a via hole allowing passage of the exhaust head; the bottom face of the buffer cover is provided withan air flow buffer chamber; the upper end face of the pump head cover is provided with an air flow through hole that communicates the relief chamber with the air flow buffer chamber. The low-noise airpump has the advantages that part of air in the relief chamber is discharged into the air flow buffer chamber via the air flow through hole so that transient impact of air discharged from the exhausthead can be effectively relieved; noise due to outflow impact of air at the exhaust head can be effectively reduced, and two-stage denoising is achieved; when the air in the air flow buffer chamber reflows into the relief chamber and flows out of the exhaust head, outflow travel of the air can be greatly extended, and noise can be further reduced; therefore, the low-noise air pump has good denoising effect.

Description

technical field [0001] The invention relates to the technical field of pump bodies, in particular to a low-noise air pump. Background technique [0002] Air pump (qìbèng), air pump is "air pump", a device that removes air from a closed space or adds air from a closed space. [0003] Air pumps are mainly divided into three types: electric air pumps, manual air pumps and foot-operated air pumps. Electric air pump, a kind of air pump powered by electricity, continuously compresses air through electricity to generate air pressure. It is mainly used in pneumatic gluing and car inflation, and it is more widely used than manual air pumps and foot-operated air pumps. [0004] The electric air pump commonly used in the prior art, such as the electric air pump used for breast pumps, etc., is widely used, but when it is used in practice, especially when the gas flows out, the air outlet or the air outlet of the air pump cover , then there is a large noise, which causes noise pollutio...

AI Technical Summary

Problems solved by technology

[0004] The electric air pump commonly used in the prior art, such as the electric air pump used for breast pumps, etc., is widely used, but when it is used in practice, especially when the gas flows out, the air outlet or the air outlet of the air pump cover , there is a lot of noise, which causes noise pollution, and affects the service life of the corresponding electric air pump and affects the user's mood.

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