CN2481884Y

CN2481884Y - Vane installation structure of fan for deep cooking fume extractor

Info

Publication number: CN2481884Y
Application number: CN 01239583
Authority: CN
Inventors: 茅忠群
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2001-05-25
Filing date: 2001-05-25
Publication date: 2002-03-13
Anticipated expiration: 2011-05-25

Abstract

The utility model relates a vane installation structure of fan for deep cooking fume extractor, which comprises impellers, and a output shaft of a generator, wherein the impeller comprises a front ring and a back ring which are relatively arranged, and a plurality of blades connected with the rims of the two rings respectively and wheel disc which is fixed on the central part of the back ring and provided with a central hole for the output shaft of the generator going through; the utility model is characterized in that the back surface of the wheel disc center is provided with a straight slot, a pin which can be embedded into the straight slot goes through the generator output shaft on the corresponding position, the position of the front surface of the wheel disc is fixed by the hand-locking nut connected with the front end thread of output shaft of the generator. Compared with the prior art, not fixed and connected only by the bolts and nuts, the utility model can be fixed by hands without any instrument, and is very convenient.

Description

A kind of draught fan impeller mounting structure of deep kitchen ventilator

The utility model relates to the centrifugal blower mounting structure of a kind of mounting structure of range hood component, particularly range hood.

The draught fan impeller of existing deep kitchen ventilator generally is made of Qian Quan, Hou Quan, wheel disc and some blades, wheel disc is fixed on the central position of back circle, Qian Quan is relative with the back circle, the blade two ends are separately fixed at the outer rim position of Qian Quan, back circle, during installation, will take turns center hole and be inserted in motor output shaft, with the hand-screw nut that itself and motor output shaft is also tight, perhaps with hand-screw itself and motor output shaft are fixed, its shortcoming is that inconvenience is installed, and connects reliable inadequately relatively.

The purpose of this utility model just is to provide at above-mentioned prior art present situation a kind of easy for installation, draught fan impeller mounting structure of connecting reliable deep kitchen ventilator

The purpose of this utility model is achieved in that the draught fan impeller mounting structure of deep kitchen ventilator comprises impeller and motor output shaft, impeller comprises the preceding circle that is oppositely arranged, some blades of this two outer rim are enclosed and connected respectively in the back, wheel disc is fixed on the central position of back circle, have on the wheel disc and can hold the center hole that motor output shaft passes through, the center ear end face that it is characterized in that wheel disc has straight groove, and motor output shaft is penetrated with a bearing pin that can embed this straight groove at corresponding position, and the front-end face of wheel disc is then spacing by the hand-tight nut that is threaded with the front end of motor output shaft.

Compared with prior art, impeller of the present utility model is spacing by hand-tight nut in the axial direction, spacing by bearing pin diametrically, thereby realize being connected with the reliable of motor output shaft, owing to be not fixedly connected mode by single screw or nut, therefore can not get final product manual installation when mounted by any instrument, very convenient.

Description of drawings.

Fig. 1 is the utility model embodiment's a structural representation

Fig. 2 is the left view of impeller among Fig. 1.

The stereogram of impeller in Fig. 3 bitmap 1.

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

As Fig. 1～shown in Figure 3, motor 2 and impeller 3 are installed in the volute of blower 1 of deep kitchen ventilator, impeller 3 comprises the preceding circle 33 that is oppositely arranged, back circle 32 and connect some blades 34 of this two outer rim respectively, wheel disc 31 is fixed on the central position of back circle 32, have on the wheel disc 31 and can hold the center hole that motor output shaft passes through, and have straight groove 35 on the center ear end face of wheel disc, and motor output shaft 21 is penetrated with a bearing pin 22 that can embed this straight groove at corresponding position, and the front-end face of wheel disc 31 is then spacing by the hand-tight nut 4 that the front end with motor output shaft 21 is threaded.

Claims

1. the draught fan impeller mounting structure of deep kitchen ventilator comprises impeller and motor output shaft, impeller comprises Qian Quan, back circle that is oppositely arranged and the some blades that connect this two outer rim respectively, wheel disc is fixed on the central position of back circle, have on the wheel disc and can hold the center hole that motor output shaft passes through, the center ear end face that it is characterized in that wheel disc has straight groove, and motor output shaft is penetrated with a bearing pin that can embed this straight groove at corresponding position, and the front-end face of wheel disc is then spacing by the hand-tight nut that is threaded with the front end of motor output shaft.