A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention relates to an electric tool for environmental nursing in daily life, in particular to a blowing-suction machine. The blowing-suction machine comprises a volute, an air outlet pipe, an air duct, a handle, a trigger, a motor, a power supply assembly and a centrifugal fan, wherein an air inlet and an air outlet are formed in the volute, the air outlet pipe is in sealing connection withthe air outlet, the air duct communicates with the volute, the handle is arranged outside the volute, the centrifugal fan is arranged in the volute, when a hand holds the handle and pulls the trigger,the motor communicates with the power supply assembly, the centrifugal fan is driven to rotate, air enters the volute through the air inlet and is compressed into the air outlet pipe by the fan, thecentrifugal fan is composed of a panel, a bottom plate and a plurality of spiral blades, and a sealing rib which is concentric with the panel and of which the inner diameter is greater than the diameter of the panel is arranged in the volute. According to the blowing-suction machine, noise can be greatly reduced, and the compression efficiency is improved.
本发明涉及一种日常生活中环境护理的电动工具，尤其涉及一种吹吸机，包括具有进风口和出风口的蜗壳、与出风口密封连接的出风管、与蜗壳连通的风筒、设于蜗壳外的把手、扳机、电机、电源组件和蜗壳内的离心式风扇，当手握把手扣动扳机时，电机与电源组件电连通，并带动离心式风扇旋转，空气经由进风口进入蜗壳内，被风扇压缩至出风管，所述离心式风扇由面板、底板和若干螺旋状叶片构成，蜗壳内部设有与面板同圆心、内径大于面板直径的密封筋。本发明的吹吸机能使噪音大大降低并使压缩效率提高。
The invention relates to an electric tool for environmental nursing in daily life, in particular to a blowing-suction machine. The blowing-suction machine comprises a volute, an air outlet pipe, an air duct, a handle, a trigger, a motor, a power supply assembly and a centrifugal fan, wherein an air inlet and an air outlet are formed in the volute, the air outlet pipe is in sealing connection withthe air outlet, the air duct communicates with the volute, the handle is arranged outside the volute, the centrifugal fan is arranged in the volute, when a hand holds the handle and pulls the trigger,the motor communicates with the power supply assembly, the centrifugal fan is driven to rotate, air enters the volute through the air inlet and is compressed into the air outlet pipe by the fan, thecentrifugal fan is composed of a panel, a bottom plate and a plurality of spiral blades, and a sealing rib which is concentric with the panel and of which the inner diameter is greater than the diameter of the panel is arranged in the volute. According to the blowing-suction machine, noise can be greatly reduced, and the compression efficiency is improved.
本发明涉及一种日常生活中环境护理的电动工具，尤其涉及一种吹吸机，包括具有进风口和出风口的蜗壳、与出风口密封连接的出风管、与蜗壳连通的风筒、设于蜗壳外的把手、扳机、电机、电源组件和蜗壳内的离心式风扇，当手握把手扣动扳机时，电机与电源组件电连通，并带动离心式风扇旋转，空气经由进风口进入蜗壳内，被风扇压缩至出风管，所述离心式风扇由面板、底板和若干螺旋状叶片构成，蜗壳内部设有与面板同圆心、内径大于面板直径的密封筋。本发明的吹吸机能使噪音大大降低并使压缩效率提高。
Blowing-suction machine
吹吸机
TIAN LULU (author)
2020-07-07
Patent
Electronic Resource
Chinese
Air blowing and suction conversion device and air blowing and suction fan
| European Patent Office | 2021