CN201599857U

CN201599857U - Range hood

Info

Publication number: CN201599857U
Application number: CN2009202004891U
Authority: CN
Inventors: 林天峰; 陈建卫
Original assignee: Zhejiang Supor Electrical Appliances Manufacturing Co Ltd
Current assignee: Zhejiang Supor Electrical Appliances Manufacturing Co Ltd
Priority date: 2009-11-23
Filing date: 2009-11-23
Publication date: 2010-10-06
Anticipated expiration: 2019-11-23

Abstract

The utility model provides a range hood, which has low wind resistance and effectively prevents oil smoke from reflowing aiming to the problem that an existing rang hood has large wind resistance, and comprises an electric fan, a fan cover, an oil smoke exhaust port and an oil smoke suction port, wherein an outer frame of the oil smoke suction port is provided with louver boards and a louver board turnover mechanism, and the louver boards can turn over between 0 and 90 degrees. The louver board turnover mechanism comprises a motor, a limit rod, a starting limit micro switch and a closing limit micro switch, wherein the motor is fixedly connected on an outer frame, the limit rod is arranged on an output shaft of the motor, the starting limit micro switch and the closing limit micro switch are arranged on the outer frame, one side of the louver board is fixedly connected with the output shaft of the motor, the other side of the louver board is articulated with the outer frame, the articulated end is arranged on the same shaft with the output shaft of the motor, and the louver board is limited when the limit rod contacts with micro switch contacts under the driving of the output shaft of the motor. The range hood has the beneficial effects that the wind resistance is low when starting, oil smoke is sucked smoothly, and the oil smoke is effectively prevented from flowing back. The degree of automation is high through arranging the louver board turnover mechanism, the structure is simple, and the work is reliable.

Description

A kind of range hood

Technical field

The utility model relates to a kind of range hood, specifically is meant the closable range hood of a kind of oil smoke suction inlet.

Background technology

The air inlet place of present most of range hoods adopts bucket type or the flat guard that has the air intake mesh, and the problem that this range hood exists is: mesh-type air inlet windage is bigger, oil suction cigarette poor effect; In addition, thereby the operation principle of range hood is under the suction function that range hood produces oil smoke to be sucked air inlet to discharge, because mesh can not be closed, when range hood was not worked, oil smoke can be back to the kitchen along the air intake mesh; Moreover the air intake guard is difficult to clean after piling up greasy dirt.

Summary of the invention

The utility model is at the defective that prior art exists, provide a kind of windage little, effectively prevent the range hood of oil vapor backstreaming.

The technical scheme that the utility model adopted is:

A kind of range hood comprises electric fan, fan housing, oil smoke outlet and oil smoke suction inlet, and described oil smoke suction inlet housing is provided with impeller and impeller switching mechanism, and described impeller can overturn between 0 °～90 °.

Described impeller switching mechanism comprises the motor that is fixedly connected on the housing, be installed in the gag lever post on the motor output shaft and be installed in the unlatching position limited inching switch on the housing and close position limited inching switch, impeller one side is fixedlyed connected with motor output shaft, another side of impeller and housing are hinged, hinged end is coaxial with motor output shaft, and impeller was limited when described gag lever post contacted with the microswitch contact under motor output shaft drives.

Described impeller comprises initiatively impeller and from moving vane, initiatively impeller one side is fixedlyed connected with motor output shaft, all hinged from the moving vane dual-side with housing, by being articulated in the pull bar interlock of two impeller homonymy sides, form double rocker mechanism between the driving and driven impeller.

Describedly comprise two, be positioned at the initiatively both sides of impeller upset side, pass through the hinged interlock of E shape pull bar between the homonymy side that three impeller are connected with housing from moving vane.

Described impeller side and motor output shaft link position are near impeller side end, and impeller side rotation free end is provided with the greasy dirt feeder, and the greasy dirt feeder is connected with the greasy dirt drain hose.

Described impeller and housing are hinged by L shaped bearing pin, the leeward side of impeller is provided with the mount pad of pin-and-hole, and bearing pin passes sheathed spring on the part of mount pad, and spring one end is replaced on mount pad, other end clamping jump ring, the bearing pin front end penetrates the pin-and-hole that is positioned at the housing inboard.

The maximum flip angle scope of described impeller is 30 °～60 °.

The beneficial effects of the utility model are: setting can be closed the impeller of oil smoke suction inlet, and windage is little during unlatching, and oil smoke sucks unobstructed, effectively prevents oil vapor backstreaming when closing; The impeller switching mechanism is set, automaticity height, simple in structure and reliable operation; Impeller is provided with greasy dirt feeder and greasy dirt drain hose, and cleaning is convenient; Impeller and housing are hinged by bearing pin, easy accessibility; Flip angle is provided with rationally, and it is unobstructed both to have guaranteed that oil smoke sucked, and does not hinder related personnel's cooking operation again, and good looking appearance.

Description of drawings

Fig. 1 is the perspective view of the utility model impeller mechanism in open mode;

Fig. 2 is the front view of the utility model impeller mechanism in open mode;

Fig. 3 is the left view of the utility model impeller mechanism in open mode;

Fig. 4 is that the A-A of Fig. 2 is to cutaway view;

Fig. 5 is that the B-B of Fig. 2 is to cutaway view;

Fig. 6 is the structural representation of the utility model automatic turning mechanism;

Fig. 7 is a C portion enlarged drawing among Fig. 2.

The specific embodiment

The utility model is described in further detail below in conjunction with embodiment and accompanying drawing:

Referring to figs. 1 through Fig. 5, a kind of range hood comprises electric fan, fan housing, oil smoke outlet and oil smoke suction inlet (not shown), and oil smoke suction inlet housing 1 is provided with impeller 2 and impeller switching mechanism, and impeller can overturn between 0 °～90 °.Impeller 2 is driven by the impeller switching mechanism, the impeller switching mechanism comprises the motor 3 that is fixedly connected on the housing 1, be installed in the gag lever post 4 on the motor output shaft 31 and be installed in the unlatching position limited inching switch 5 on the housing 1 and close position limited inching switch 6, each microswitch is installed on the housing by screw, with reference to Fig. 6, a side of impeller 2 is fixedlyed connected with motor output shaft 31, another side and the housing 1 of impeller 2 are hinged, hinged end is coaxial with motor output shaft 31, gag lever post 4 under motor output shaft 31 drives with microswitch 5, impeller 2 was limited when 6 contact contacted, the power supply signal line is housed on the microswitch, be contained in gag lever post 4 and motor synchronous rotation on the motor output shaft 31, when gag lever post 4 went to fine motion contact position with microswitch clockwise, the power supply of microswitch automatic cut-off motor also made its stall.Impeller was slowly at the uniform velocity opened when motor output shaft changeed clockwise, and motor 3 counter-rotatings are slowly at the uniform velocity closed impeller, and with the extreme position of control impeller open and close, the anglec of rotation realization control by motor output shaft guarantees that impeller 2 foldings are accurate.

With reference to Fig. 3, in the present embodiment, impeller comprise one initiatively impeller 21 and two of both sides that are positioned at impeller upset side initiatively from moving

vane

22 and 23, initiatively impeller 21 1 sides are fixedlyed connected with motor output shaft 31, all hinged from the dual-side of moving

vane

22 and 23 with housing 1, main, from pull bar 7 interlocks by being articulated in two impeller homonymy sides between the moving vane, form double rocker mechanism, pull bar 7 is E shape, to leave the position of hinged end one segment distance hinged with each impeller respectively for three external parts of pull bar 7, and three impeller are formed double rocker mechanism in twos by pull bar 7 and housing.In order to guarantee the stable of impeller rotary movement, two sides of impeller all pass through pull bar 7 and connect.When three impeller all were in open mode, after range hood air channel master's motor was opened, oil smoke can enter in the big gap between two impeller, and air draught is more smooth and easy greatly because of the air intake cross section; After giving a counter-rotating of motor power supply signal, gag lever post goes to synchronously closes the microswitch contact position and makes its action cut off the motor power signal, make the motor stall, three impeller are in closed condition, there is certain self-lock force to make impeller under operating condition, overcome the influence of gravity in the motion process, remains it and open, close the accurate and secure ratcs of resting position.Obviously, the quantity of impeller can be arranged to one, two or polylith.

As shown in Figure 3,

impeller

21,22 and 23 side and motor output shaft 31 link positions are near impeller side end, for the ease of the cleaning greasy dirt, three

impeller

21,22 and 23 sides rotation free end are respectively equipped with greasy dirt feeder 210,220 and 230, greasy dirt feeder 210,220 and 230 is connected with greasy dirt drain hose 211,221 and 231 respectively, is used to get rid of the greasy dirt of accumulation.

With reference to Fig. 7, impeller 22 and housing 1 are hinged by L shaped bearing pin 223, impeller 22 leeward sides are provided with the mount pad 224 of pin-and-hole, bearing pin 223 passes sheathed spring 225 on the part of mount pad 224, spring 225 1 ends are replaced on mount pad 223, other end clamping jump ring 226, bearing pin 223 front ends penetrate the pin-and-hole 11 of housing 1 inboard.During dismounting, only need jump ring 226 is taken off, spring 225 loosens, and can extract bearing pin 223 out, thereby impeller 22 is separated with housing 1.The bearing pin combination that spring is housed can make impeller Fast Installation, dismounting, is convenient to ordinary maintenance and maintenance.This constructional device compactness, action accurately and reliably, and is both artistic and practical.

Unobstructed in order to guarantee that oil smoke sucks, and do not hinder related personnel's cooking operation, the maximum flip angle scope of impeller be set to 30 °～60 ° preferable.

Claims

1. a range hood comprises electric fan, fan housing, oil smoke outlet and oil smoke suction inlet, it is characterized in that: described oil smoke suction inlet housing is provided with impeller and impeller switching mechanism, and described impeller can overturn between 0 °～90 °.

2. a kind of range hood as claimed in claim 1, it is characterized in that: described impeller switching mechanism comprises the motor that is fixedly connected on the housing, be installed in the gag lever post on the motor output shaft and be installed in the unlatching position limited inching switch on the housing and close position limited inching switch, impeller one side is fixedlyed connected with motor output shaft, another side of impeller and housing are hinged, hinged end is coaxial with motor output shaft, and impeller was limited when described gag lever post contacted with the microswitch contact under motor output shaft drives.

3. a kind of range hood as claimed in claim 2, it is characterized in that: described impeller comprises initiatively impeller and from moving vane, initiatively impeller one side is fixedlyed connected with motor output shaft, all hinged from the moving vane dual-side with housing, by being articulated in the pull bar interlock of two impeller homonymy sides, form double rocker mechanism between the driving and driven impeller.

4. a kind of range hood as claimed in claim 3 is characterized in that: describedly comprise two from moving vane, be positioned at the initiatively both sides of impeller upset side, pass through the hinged interlock of E shape pull bar between the homonymy side that three impeller are connected with housing.

5. as each described a kind of range hood of claim 2-4, it is characterized in that: described impeller side and motor output shaft link position are near impeller side end, impeller side rotation free end is provided with the greasy dirt feeder, and the greasy dirt feeder is connected with the greasy dirt drain hose.

6. as each described a kind of range hood of claim 2-4, it is characterized in that: described impeller and housing are hinged by L shaped bearing pin, the leeward side of impeller is provided with the mount pad of pin-and-hole, bearing pin passes sheathed spring on the part of mount pad, spring one end is replaced on mount pad, other end clamping jump ring, the bearing pin front end penetrates the pin-and-hole that is positioned at the housing inboard.

7. as each described a kind of range hood of claim 1-3, it is characterized in that: the maximum flip angle scope of described impeller is 30 °～60 °.