CN211204146U - Centrifugal fan of range hood - Google Patents

Abstract

A centrifugal fan of a range hood comprises a volute, wherein the volute comprises a front volute plate, a rear cover plate and a coaming, and an oil discharge hole is formed in the coaming; the oil collecting box is provided with an upper opening and an oil discharging pipe; the upper opening end of the oil collecting box is attached to and fixedly connected with the outer surface of the enclosing plate, and the oil discharging hole is opposite to the inner cavity of the oil collecting box; the oil discharge pipe is connected with the bottom plate of the oil collecting box and is communicated with the inner cavity of the oil collecting box. By adopting the structure, the oil in the volute enters the oil collecting box through the oil discharging hole and then is guided into the oil cup of the range hood through the oil discharging pipe, so that the oil is effectively prevented from splashing.

Description

Centrifugal fan of range hood

Technical Field

The utility model relates to a range hood, especially a range hood's centrifugal fan.

Background

At present, in the prior art, a centrifugal fan of a range hood comprises a volute, wherein the volute comprises a front volute plate, a rear cover plate, a surrounding plate and an air outlet connector, and an oil discharge hole is formed in the surrounding plate. There are problems in that: the oil dropped from the oil discharge hole splashes to the inner wall of the casing.

SUMMERY OF THE UTILITY MODEL

The utility model aims at: provides a centrifugal fan of a range hood, which can prevent oil from splashing to the inner wall of a shell.

The utility model discloses a realize like this: a centrifugal fan of a range hood comprises a volute, wherein the volute comprises a front volute plate, a rear cover plate and a coaming, and an oil discharge hole is formed in the coaming; it is characterized by also comprising an oil collecting box with an upper opening and an oil discharging pipe;

the upper opening end of the oil collecting box is attached to and fixedly connected with the outer surface of the enclosing plate, and the oil discharging hole is opposite to the inner cavity of the oil collecting box; the oil discharge pipe is connected with the bottom plate of the oil collecting box and is communicated with the inner cavity of the oil collecting box.

The centrifugal fan of the range hood is characterized in that: the volume of the oil collecting box is gradually increased from the bottom plate end to the upper opening end.

The utility model relates to a range hood's centrifugal fan owing to adopt such structure, the oil of spiral case gets into the collection oil box through the oil drain hole, then leads to the oil cup of cigarette machine through the oil extraction pipe, prevents effectively that oil from splashing.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 is a usage state diagram of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

As shown in fig. 1, a centrifugal fan of a range hood includes a volute 1, the volute 1 includes a front volute plate 2, a rear cover plate 3, a shroud plate 4 and an air outlet port 5, and the shroud plate 4 is provided with an oil discharge hole.

The oil collecting box also comprises an oil collecting box 6 with an upper opening and an oil discharging pipe 7;

the upper opening end of the oil collecting box 6 is attached to and fixedly connected with the outer surface of the coaming 4, and the oil discharge hole is opposite to the inner cavity of the oil collecting box 6; the oil discharge pipe 7 is connected with the bottom plate of the oil collecting box 6 and communicated with the inner cavity of the oil collecting box 6.

The volume of the oil collecting box 6 is gradually increased from the bottom plate end to the upper opening end.

The utility model discloses during the use, as shown in fig. 3, establish in range hood's casing 8, the lower extreme of oil extraction pipe 7 stretches into in range hood's oil cup 9.

What has been described above is only a preferred embodiment of the present invention. It should be noted that, for a person skilled in the art, several modifications and variations can be made without departing from the principle of the invention, which is also considered as the protection scope of the invention.

Claims (2)

1. A centrifugal fan of a range hood comprises a volute, wherein the volute comprises a front volute plate, a rear cover plate and a coaming, and an oil discharge hole is formed in the coaming; it is characterized by also comprising an oil collecting box with an upper opening and an oil discharging pipe;

the upper opening end of the oil collecting box is attached to and fixedly connected with the outer surface of the enclosing plate, and the oil discharging hole is opposite to the inner cavity of the oil collecting box; the oil discharge pipe is connected with the bottom plate of the oil collecting box and is communicated with the inner cavity of the oil collecting box.

2. The centrifugal fan of a range hood according to claim 1, wherein: the volume of the oil collecting box is gradually increased from the bottom plate end to the upper opening end.

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