Low-noise air blower

Abstract

The invention discloses a low-noise air blower, and relates to the field of air blowers. The low-noise air blower comprises a draught fan outer shell and a bottom plate, buffer bases are fixedly connected to the four corners of the top of the bottom plate, an inner cavity is formed in each buffer base, a buffer spring is arranged in the inner cavity of each buffer base, the bottom of each buffer spring is fixedly connected to the bottom wall of the inner cavity of each buffer base, and a buffer rod is fixedly connected to the top of each buffer spring. Each buffer rod is connected in the innercavity of each buffer base in a sliding mode, the top of each buffer rod penetrates through the corresponding buffer base to extend upwards and is fixedly connected with a plane plate, and the top ofthe plane plate is fixedly connected with a supporting platform. By means of the low-noise air blower, noise caused by vibration is reduced, and on the other hand, an air separation layer is formed by the draught fan outer shell and a draught fan inner shell and internally provided with sound insulation cotton, and in this way, sound penetrating out of the draught fan outer shell when an internalmotor operates is greatly reduced; and therefore, noise is reduced, and the device operates more quietly.

Description

technical field [0001] The invention relates to the technical field of blowers, in particular to a low-noise blower. Background technique [0002] At present, in order to ensure sufficient air volume of blowers on the market, the axial-flow fan blades have a relatively high speed. At this time, the high-speed air flow and the motor itself will generate relatively large noise, which will have a negative impact on the use of the blower. [0003] When the existing blower is used, the general noise is generated in two ways, one is the noise generated by the blower itself, which vibrates greatly and collides with the ground or other objects, and the other is the internal sound generated by the high speed of the internal motor. This kind of sound is relatively loud. On the one hand, it comes out through the housing, and on the other hand, it comes out through the air intake cover. However, most of the blowers in the prior art do not have corresponding noise cancellation, which mak...

AI Technical Summary

Problems solved by technology

[0002] At present, in order to ensure sufficient air volume, the blowers on the market have axial-flow fan blades with high speed. At this time, the high-speed air flow and the motor itself will generate relatively large noise, which will have a negative impact on the use of the blower.

[0003] When the existing blower is used, the general noise is generated in two ways, one is the noise generated by the blower itself, which vibrates greatly and collides with the ground or other objects, and the other is the internal sound generated by the high speed of the internal motor. This kind of sound is relatively loud. On the one hand, it comes out through the housing, and on the other hand, it comes out through the air intake cover. However, most of the blowers in the prior art do not have corresponding noise cancellation, which makes the noise loud. In view of the shortcomings of the prior art, The invention discloses a low-noise blower to solve the above problems

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