CN2318542Y

CN2318542Y - Cooker hood

Info

Publication number: CN2318542Y
Application number: CN 97246415
Authority: CN
Inventors: 和宝龙
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-12-02
Filing date: 1997-12-02
Publication date: 1999-05-12
Anticipated expiration: 2007-12-02

Abstract

The utility model relates to an oil fume exhausting machine, comprising a fume collecting hood provided with a ventilator. The utility model is characterized in that an impeller of the ventilator is positioned at the lower part, and an air inlet is positioned at the upper part; the ventilator is arranged on the top of the fume collecting hood whose back is provided with a fume exhausting opening; the outer part of the fume collecting hood is provided with a blowing pipe communicated with the ventilator; a blowing nozzle of the blowing pipe extends into a wind collecting hood and faces to the fume exhausting opening from a lateral plate of the fume collecting hood; the lower edge of the lateral plate can be provided with a rolling edge which is communicated with the blowing pipe and is provided with a narrow slit. The utility model can prevent oil fume from polluting the impeller. The inner part of the fume collecting hood is not provided with a fume exhausting channel, the top of the fume collecting hood is flat, the transition is smooth, and oil fume is not easily stuck. When oil pollution which is stuck is gently scraped, the oil pollution can be removed.

Description

Smoke exhaust

The utility model belongs to smoke exhaust.

Existing smoke exhaust is at the exhaust fume collecting hood that exhaust opening is arranged axial fan to be installed, the impeller of axial fan and smokejack are in exhaust fume collecting hood, smoke exhaust is installed in the top position of kitchen range, and ventilation blower is not only taken out but also arrange, and oil smoke is by discharging outdoor by impeller through smokejack and exhaust opening behind the impeller.Use to adhere to one deck greasy dirt at impeller and smokejack in three or four months, influence runs well, and the oil droplet of greasy dirt also drops in the pot on the kitchen range sometimes, and it is not only dirty but also tired to clean greasy dirt, cleans pretty troublesome.

The purpose of this utility model provides one and avoids the direct pickup fan impeller of oil smoke, alleviates the smoke exhaust of oil smoke to the exhaust fume collecting hood pickup.

The utility model is such, and it is the top that centrifugal fan and impeller is arranged on exhaust fume collecting hood, connects blower at the air outlet of centrifugal fan, and the blowing mouth of blower communicates under the side plate of wind-collecting cover and exhaust fume collecting hood.When centrifugal fan started, wind blowed to exhaust opening from the blowing mouth of blower from the exhaust fume collecting hood side plate, and wind produces negative pressure and takes oil smoke out of exhaust opening in process of flowing.Lower edge at exhaust fume collecting hood is provided with the crimping that cracks, and the crimping that cracks communicates with blower, and a spot of wind blows out the formation air curtain from crimping and avoids the pickup of oil smoke to exhaust fume collecting hood.

The utility model comprises exhaust fume collecting hood, ventilation blower, and ventilation blower is installed in exhaust fume collecting hood, it is characterized in that: said ventilation blower is that impeller is descending air inlet at last centrifugal fan, and ventilation blower is installed on the exhaust fume collecting hood top; There is exhaust opening at rear portion at exhaust fume collecting hood, and minimum two blowers also are installed in the outside of exhaust fume collecting hood, and blower is connected logical with the air outlet of ventilation blower, and the blowing mouth of blower puts in the wind-collecting cover also facing to exhaust opening from the front side plate of exhaust fume collecting hood.

Above-mentioned smoke exhaust is characterized in that: the crimping of narrow slit is arranged out in the side plate lower edge of exhaust fume collecting hood, and the crimping of opening narrow slit is connected logical with blower.

Because the utility model takes said structure, centrifugal fan and impeller are arranged on the top of exhaust fume collecting hood, wind blows into from the front side plate from the blowing mouth of blower and blows to exhaust opening in the exhaust fume collecting hood simultaneously, and wind is taken oil smoke out of exhaust opening in process of flowing.Oil smoke does not contact with the impeller of ventilation blower, avoids oil smoke pickup impeller; Do not have more smooth excessive garden, smokejack exhaust fume collecting hood top cunning to be not easy the pickup oil smoke in the exhaust fume collecting hood, the long-term use has only the slight greasy dirt that can wipe; In the lower edge of exhaust fume collecting hood the crimping of opening narrow slit is set, has improved the intensity of exhaust fume collecting hood, crimping communicates with blower, has 10% air quantity to blow out from hemmed seam during work approximately, at exhaust fume collecting hood inner surface formation one deck air curtain, avoids the pickup of oil smoke to exhaust fume collecting hood.

Detailed structure of the present utility model is provided by embodiment and accompanying drawing thereof.

Fig. 1 is the vertical view of the utility model embodiment.

Fig. 2 is the cutaway view along A-A line among Fig. 1.

Fig. 3 is the upward view of the utility model embodiment.

Among the above-mentioned figure: 1, left plate 2, wind-collecting cover top board 3, back side panel 4, exhaust opening 5, air inlet 6, ventilation blower 7, right plate 8, air outlet 9, threeway 10, communicating pipe 11, front side plate 12, blower 13, communicating pipe 14, blower 15, wind-collecting cover 16, communicating pipe 17, narrow slit 18, crimping 19, blowing mouth 20, crimping 21, crimping 22, blowing mouth 23, crimping

Embodiment of the present utility model sees Fig. 1, Fig. 2, Fig. 3, it comprises exhaust fume collecting hood 15, ventilation blower 6, ventilation blower 6 is installed in exhaust fume collecting hood 15, it is characterized in that: said ventilation blower 6 is that impeller is descending air inlet 5 at last centrifugal fan, and ventilation blower 6 is installed on the exhaust fume collecting hood top board 2; Back side panel 3 at exhaust fume collecting hood 15 has exhaust opening 4, in the outside of exhaust fume collecting hood 15 two

blowers

12,14 are installed also, an end of blower 12 and blower 14 mutually and the blowing mouth 19 that is connected the blowing mouth 22 of logical, blower 12 and blower 14 with the air outlet 8 of ventilation blower 6 of threeway 9 together put in from the front side plate 11 of exhaust fume collecting hood 15 and also face toward exhaust openings 4 in the wind-collecting cover 15.

Present embodiment also has following feature: the lower edge at the left plate 1 of exhaust fume collecting hood 15, right plate 7, front side plate 11, back side panel 3 respectively has crimping 23, crimping 20, crimping 18, a crimping 21 of opening narrow slit respectively, crimping 23, crimping 20 respectively with a connecting pipe 16, is connected communicating pipe 10 and leads to blower 14, blower 12,18 usefulness communicating pipes 13 of crimping and

blower

12,14 mutually and threeway 9 connections at position.The shape of cross section of crimping has narrow slit 17 referring to Fig. 2 as crimping 18.

When ventilation blower 6 starts, wind blows into from front side plate 11 through the blowing

mouth

22,19 of the impeller of ventilation blower 6, air outlet 8,

blower

12,14 from air inlet 5 and blows to exhaust opening 4 in the exhaust fume collecting hood 15 simultaneously, wind is taken oil smoke out of exhaust opening 4 in process of flowing, wind forms air curtain from the narrow slit of crimping 20, crimping 23, crimping 18, crimping 21 from interior blowing in the exhaust fume collecting hood 15 simultaneously, avoid the pickup of oil smoke, also improve the mist extractor effect exhaust fume collecting hood 15.

Claims

1, a kind of smoke exhaust comprises exhaust fume collecting hood, ventilation blower, and ventilation blower is installed in exhaust fume collecting hood, it is characterized in that: said ventilation blower is that impeller is descending air inlet at last centrifugal fan, and ventilation blower is installed on the exhaust fume collecting hood top; There is exhaust opening at rear portion at exhaust fume collecting hood, and minimum two blowers also are installed in the outside of exhaust fume collecting hood, and blower is connected logical with the air outlet of ventilation blower, and the blowing mouth of blower puts in the wind-collecting cover also facing to exhaust opening from the side plate of exhaust fume collecting hood.

2, smoke exhaust according to claim 1 is characterized in that: the crimping of narrow slit is arranged out in the side plate lower edge of exhaust fume collecting hood, and the crimping of opening narrow slit is connected logical with blower.