Range hood provided with fume blocking mechanism

Abstract

The invention discloses a range hood provided with a fume blocking mechanism. The range hood comprises a fume collecting hood and the fume blocking mechanism, wherein an air inlet is formed in the top of the fume collecting hood, and the fume blocking mechanism comprises a first fume blocking mechanism body which is arranged below the air inlet and covers the air inlet in the vertical direction of the air inlet; the range hood is characterized in that the first fume blocking mechanism body comprises a first annular plate and a first fume baffle located above the first annular plate, and the a certain distance is kept between the first annular plate and the first fume baffle in the vertical direction of the air inlet; the fume blocking mechanism further comprises a second fume blocking mechanism body arranged above the first fume blocking mechanism body, the second fume blocking mechanism body comprises a second annular plate and a second fume baffle located above the second annular plate, and a certain distance is kept between the second annular plate and the second fume baffle in the vertical direction of the air inlet.

Description

technical field [0001] The invention relates to a range hood, in particular to a range hood with a smoke blocking mechanism. Background technique [0002] Most of the existing top-suction range hoods (thin, deep or tower-type range hoods installed directly above the stove, excluding side suction and bottom row types) mostly have the following structural forms: a smoke collection hood is arranged on the top, and a collection hood The smoke hood is concavely formed with a smoke collecting cavity, the smoke collecting hood is provided with an air inlet, and a filter screen is arranged at the air inlet. For example, the Chinese patent application number 200520086100.7 discloses a range hood, which includes a smoke collection hood arranged at the bottom and an air channel designed on the upper part of the smoke collection hood, and is provided with an air duct connected to the bottom of the smoke collection hood in the middle. The air inlet ring is provided with a fan in the air...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned traditional range hood has a large negative pressure in the middle of the smoke collection chamber, and the oil fume collection area has a good effect of absorbing the oil fume, but there is a phenomenon of smoke running around; while the improved range hood with a smoke baffle has a negative pressure area that expands outwards. , can prevent smoke from running away, but the oil fume absorption capacity in the oil fume gathering area is reduced. Therefore, the above two types of range hoods still need to be further improved in terms of oil absorption capacity; and these two types of range hoods are equipped with Filter screen, due to the irregular surface and voids of the filter screen, it is easy to cause turbulence when the oil fume passes through the filter screen

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