Blowing and sucking machine

Abstract

The invention relates to an electric tool for environment care in daily life, in particular to a blowing and sucking machine. The blowing and sucking machine comprises a volute with an air inlet and an air outlet, an air outlet pipe connected with the air outlet in a sealed mode, an air duct communicated with the volute, a handle arranged outside the volute, a trigger, a motor, a power source component and a centrifugal fan arranged in the volute; and when the trigger is pulled by holding the handle with a hand, the motor is electrically communicated with the power supply component and drivesthe centrifugal fan to rotate, air enters the volute through the air inlet and is compressed to the air outlet pipe by the fan, the centrifugal fan is composed of a panel, a bottom plate and a plurality of spiral blades, and a sealing rib concentric with a panel and having an inner diameter larger than the diameter of the panel is arranged in the volute. Through the blowing and sucking machine, noise can be greatly reduced, and the compression efficiency is improved.

Description

[0001] This application is a division of the application with the application number 2020102822241 and the application date on April 11, 2020 under the name "Blowing Machine". Technical field [0002] The invention relates to an electric tool for environmental care in daily life, in particular to a blower and suction machine, which includes a volute, a motor, an air outlet pipe and a centrifugal fan. Background technique [0003] The hair dryer is an electric tool necessary for environmental care in daily life, such as blowing away fallen leaves, grass and other dust and debris outside; due to the large flow and wind speed required, the volume and noise of the machine itself are relatively large. As an improved product of the hair dryer, the blower is a dual-purpose power tool for blowing or sucking in a small space or a large space. Generally speaking, for a small space, in order to avoid secondary pollution of the environment, the suction method is used to clean up dust and impur...

AI Technical Summary

Problems solved by technology

[0005] However, the existing blower has the defects of high noise and low compression efficiency; the noise will seriously damage the user's health and experience, and the low efficiency will affect the continuous working time of the product and increase the waste of materials

[0006] Moreover, the existing products can only focus on the ease of use and operating comfort in one state; generally, the ease of use and operating experience in the blowing state are emphasized; and as a suction fan state, the operation is very inconvenient

[0007] For blowing and suction machines, high noise and low compression efficiency are stubborn problems in the industry. How to achieve high-efficiency compression, low noise, and easy operation and use in both blowing and suction states is the goal that the industry is constantly pursuing.

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