Wind inlet ring, wind wheel, draught fan structure and extractor hood
A technology for range hoods and air inlet rings, which is applied in the fields of air inlet rings, wind wheels, fan structures and range hoods, and can solve problems such as reducing the air intake area, reducing effective air volume, and obstructing gas
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[0035] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0036] Embodiment 1 of the present invention provides an air intake ring, such as Figure 1-2 As shown, it includes the air intake ring body 11, the first flange 12, the second flange 13 and the third flange 14, the first flange 12, the second flange 13 and the third flange 14 from the inside to the outside They are sequentially arranged on the wind inlet ring body 11, and an annular groove for matching with the end surface of the wind wheel is formed between the second flange 13 and the third flange 14;
[0037] In this way, an annular groove for matching with the end surface of the wind wheel is...
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