Air suction device and range hood

Abstract

The invention provides an air suction device and a range hood, and relates to the technical field of cleaning equipment. The air suction device comprises a shell which is provided with an air inlet and an air outlet, and the air inlet is provided with a check ring which comprises an arc part and a conical part; the arc part is arranged around the end of the air inlet, and the conical part is a conical barrel with a head cut off; the flared end of the conical part is in transition connection with an inner arc of the arc part, and the conical part is inserted into the air inlet; the range hood comprises a box body and the air suction device, and the box body is provided with a smoke inlet and a smoke outlet; the air suction device is arranged in the box body, and the air inlet of the air suction device communicates with the smoke inlet; and the air outlet of the air suction device communicates with the smoke outlet. Through the transition connection of the arc part and the conical part arc of the check ring and the arrangement of the conical part, the possibility that airflow forms eddy areas affecting the efficiency of air suction components can be reduced, so that the air suction effect of the air suction components and the air suction device is improved.

Description

technical field [0001] The invention relates to the technical field of purification equipment, in particular to an air suction device and a range hood. Background technique [0002] The production process of traditional Chinese food culture includes frying, frying, deep-frying, roasting, etc. During the process of making food, a lot of oil fume is produced, and the oil fume not only seriously pollutes the kitchen environment, but also the kitchen operators stay in the oil fume environment for a long time. The harm is relatively large, serious, and even cancer. Therefore, in order to reduce the harm of oil fume to the human body, people have designed a range hood that can transport the oil fume in the kitchen to the outside, and the range hood has been widely used in the kitchen. [0003] The operation of the suction device in the range hood generates negative pressure, sucks the cooking fume into the suction device, and transports the fume to the exhaust pipe of the range ho...

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a kind of air suction device and range hood, to solve the problem that in the prior art the air suction device is provided with an arc-shaped retaining ring at the air inlet, the vortex formed by the air flow entering the air suction device is relatively large, Technical Problems of Reducing Air Suction Effect of Air Suction Device

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