CN2480743Y - Streamlined cooking fume exhauster - Google Patents

Abstract

The utility model provides a double fairshaped smoke exhaust ventilator, which belongs to the ventilator field. The utility model employs a double fairshaped casing, a separated axial fan, an exhaust port double throttle motor dragging control mechanism and a unique air curtain design, which effectively shortens oil smoke path and the inner wall is not stained with oil. The utility model has the advantages of simple structure, good effect of smoke exhausting, long service life of the motor, safety and reliability, convenient cleaning and the like, which can be widely applicable to domestic kitchens and food processing factories and can be used as accessory equipments of cleaning equipments for purifying industrial poisonous and harmful gas and dust.

Description

The double streamline range hood

The utility model belongs to the ventilation blower field, is meant a kind of device of civilian kitchen eliminating oil smoke especially.

As everyone knows, present civilian oil suction cigarette device kind is numerous, but still can be divided into axial-flow type ventilating fan type and centrifugal range hood type two big classes on the whole." high-efficiency cooking fume exhauster " utility model patent (notification number: the 2124418U day for announcing: on December 9th, 1992) by Patent Office of the People's Republic of China's mandate, the box oil-collecting petticoat pipe of having deepened directly and axial flow blower be installed together, improved oil suction cigarette effect significantly, and simple in structure, cheapness is gone easily.But simultaneously it also there are the following problems because of the restriction of self structure, the one motor directly is exposed in the oil smoke passage, easily is infected with greasy dirt, long-term use can cause motor to damage; Its two long-term shutter, kuppe and blade of back ventilating fan of using can stick more greasy dirt, cleans difficulty.And use more centrifugal range hood because its structure bend is many and so the long power consumption in air channel is big, and the Chiba of centrifugal blower wheel and volute inner oil-collecting after long-term the use are a lot of, clean very difficultly, have the phenomenon to the kitchen range oil dripping simultaneously.

It is a kind of simple in structure that the purpose of this utility model is to provide, and oil smoke path weak point, casing inner surface oily dirt free, oil suction cigarette are effective, safe and reliable, the double streamline range hood of long service life.

The utility model is realized as follows.

The utility model is made up of separate type axial flow blower, oil-collecting petticoat pipe, the two air doors of exhaust outlet and control transmission mechanism, illuminating lamp, Oil-gas Separation net, gauge tap etc.Wherein the oil-collecting petticoat pipe is to become the degree of depth≤400 millimeter downward opening casing by a double streamline casing with a back shroud assembly welding with the left and right side plate that two block-shaped identical and tops are processed with a plurality of air vents.Separate type axial flow blower integral body can be divided into two parts: the fan blade of band power transmission shaft is installed in the kuppe that is positioned at the back shroud middle and upper part, can positive and negative bidirectional movement and the motor of extension shaft distance then be installed on the electric machine support that is fixed on the inwall of double streamline casing middle and upper part, both power transmission shafts are on the same horizontal axis, and link to each other by coupling band.With extension shaft on the relative casing of motor afterbody, be processed with a circular air curtain hole of forming by a plurality of circular holes.The inwall of casing and back shroud bottom is equipped with an Oil-gas Separation net below electric machine support, and it is to become fish scale poroid by metal material processing, aperture 〉=80 orders.Two air doors of exhaust outlet and control transmission mechanism mainly reach the transmission mechanism of being made up of link rod, door-hinge, rotating shaft and rocking arm by two pectinid doors, electric motor type tractor, extension spring and constitute, the upper end that they are installed in back shroud is positioned at the both sides of kuppe, under the control of gauge tap, electric motor type tractor and extension spring control transmission mechanism promptly open or close two pectinid doors simultaneously, and the development distance of air door is greater than the diameter of kuppe.The utility model can be installed on the window in civilian kitchen or be installed in the air inlet place of industrial purifier, and the start-up control switch can reach the ideal effect of getting rid of oil smoke and pernicious gas, dust.

The utility model has following advantage.

The utility model adopts the double streamline casing, has shortened the oil smoke path effectively, and the oil suction cigarette is effective, and inwall is difficult for being infected with greasy dirt; Unique air curtain design and separate type axial flow blower structure make motor directly not face the erosion of oil smoke steam, give compensated with air simultaneously and are reached for the purpose of motor radiating, have prolonged motor service life; Two air door structures of electric motor type tractor control make mist extractor more unimpeded.The utility model is simple and reasonable, cleaning is easy, easy for installation, power consumption is little, motor can positive and negative bidirectional movement, not only is suitable for civilian kitchen, also applicable to food processing factory in one's power as the auxiliary equipment of toxic and harmful, dust purification device.

Description of drawings.

Fig. 1 is the utility model structural representation.

Fig. 2 is two air doors of the utility model and controlling organization schematic diagram.

Below in conjunction with accompanying drawing in detail the utility model embodiment is described in detail.

With reference to Fig. 1, Fig. 2, the utility model mainly is made up of oil-collecting petticoat pipe, separate type axial flow blower, the two air door controlling organizations of exhaust outlet, Oil-gas Separation net 22, illuminating lamp 13, gauge tap 12 etc.Wherein the oil-collecting petticoat pipe is that the casing that is shaped as double streamline 1 by metal material compression moulding becomes a downward opening casing with two block-shaped identical left and right side plates 2 and back shroud 3 assembly weldings, its degree of depth≤400 millimeter.All be processed with the two row of horizontal air vent 8 that diameter differs that is staggered at the top of left and right side plate 2 equal height, the negative pressure that is produced by motor 4 and fan blade 5 during work directly enters in the oil-collecting petticoat pipe oil smoke, simultaneously under the cold air that enters along the air vent 8 on double streamline casing 1 inwall and the side plate 2 promotes, shortened the path effectively, and do not contact, thereby make inwall be difficult for being infected with greasy dirt with oil-collecting petticoat pipe inwall.The integral installation of separate type axial flow blower is in the middle and upper part of oil-collecting petticoat pipe, it is made of two parts, the fan blade 5 of its band power transmission shaft is installed in the kuppe 10 that is positioned at back shroud 3 middle and upper parts, 4 in motor with extension shaft distance of positive and negative bidirectional movement function is installed on the motor mounting rack 7 that is positioned on the casing 1 middle and upper part inwall, both power transmission shafts are in same horizontal axis, and use coupling band 6 to link to each other, and coupling band 6 uses that jackscrew is two-way to be fixed on the power transmission shaft, and the folding dress is convenient.Kuppe 10 also has the oil-collecting function concurrently except that air-flow is concentrated the acceleration.On the relative casing 1 of motor 4 afterbodys; be processed with as Figure 1B to shown in the circular air curtain hole of forming by a plurality of circular holes 9, cold air can therefrom enter and form air curtain protection to motor 4, makes it not be subjected to oil smoke, water vapor encroachment; appearance is not infected with greasy dirt, thereby prolongs the working life of motor.Be equipped with an Oil-gas Separation net 22 between the inwall of casing and back shroud 3 bottoms below electric machine support 7, it is to become fish scale poroid by metal material processing, and aperture 〉=80 orders is to reach Oil-gas Separation, to reduce the purpose of environmental pollution.A bucker 21 is installed on the back shroud above the kuppe 10 3, the oil collection box 11 of an easy disassembly all is installed below kuppe 10 and Oil-gas Separation net 22.

Fig. 2 is that the A of Fig. 1 is to diagrammatic sketch, two air doors of exhaust outlet and controlling organization are mainly by two pectinid doors 14, electric motor type tractor 15, extension spring 19 with by link rod 16, the transmission mechanism that door-hinge 17, rotating shaft 18, rocking arm 20 are formed constitutes, and they are installed in the upper end of back shroud 3.The door-hinge 17 of two pectinid doors 14 is installed in the both sides of kuppe 10, left and right two door-hinges 17 not at grade its Central Left Gate axle 17 be installed in above the door-hinge support 23 that is fixed on the back shroud 3, and right door-hinge is directly installed on the back shroud 3, two door-hinges 17 link to each other with two rotating shafts 18 by two rocking arms 20, and link rod 16 links together with two rotating shafts 18 and links to each other with the backguy of electric motor type tractor 15.One end of extension spring 19 is fixed on the back shroud 3, and the end of the other end and link rod 16 is assembled together.When connecting power supply by gauge tap 12, the backguy pulling link rod 16 of motor tractor 15, two 45 ° of displacements of rotating shaft 18 relative two door-hinges, 17 dos that are connected as a single entity with link rod 16 this moment, two rocking arms promote two door-hinges 17 for 20 mouthfuls and do corresponding rotation, two pectinid doors 14 promptly are opened into 90 °, two pectinid doors, 14 development distances are greater than the diameter of kuppe 10, and extension spring 19 simultaneously is in the accumulation of energy stretched condition, shown in Fig. 2 (a).When being cut off the electricity supply by gauge tap 12, opposite with said process, electric motor type tractor 15 is removed the state that strains at, extension spring 19 becomes contraction by extension, spurs link rod 16 simultaneously and rotating shaft 18 sets back, under the drive of rocking arm 20, two pectinid doors 14 are closed fully, shown in Fig. 2 (b).

The utility model can be installed on the window in civilian kitchen, or is installed in the air inlet place of industrial purifier, and start-up control switch 10 can reach the ideal effect of getting rid of oil smoke and harmful poisonous gas, dust.In addition, use the counter-rotating kinetic energy of motor 4, can reach the purpose of replenishing indoor fresh air.

Claims (4)

1. double streamline range hood, mainly form, it is characterized in that the oil-collecting petticoat pipe is that the casing that is shaped as double streamline (1) by metal material compression moulding becomes a downward opening casing with two block-shaped identical left and right side plates (2) and back shroud (3) assembly welding by the two air doors of oil-collecting petticoat pipe, separate type axial flow blower, exhaust outlet and control transmission mechanism, Oil-gas Separation net (22), illuminating lamp (13), gauge tap (12) etc.; The integral installation of separate type axial flow blower is in the middle and upper part of oil-collecting petticoat pipe, it is made of two parts, the fan blade (5) of its band power transmission shaft is installed in the kuppe (10) that is positioned at back shroud (3) middle and upper part, the motor of extension shaft distance (4) then is installed on the electric machine support (7) that is positioned on the inwall of casing (1) middle and upper part, and both power transmission shafts are on the same horizontal axis and with coupling band (6) and link to each other; Below electric machine support (7), the inwall and the bonnet of casing (1) pull (3) bottom and pay one's respects an Oil-gas Separation net (22) is housed, it is to become fish scale poroid by metal material processing, aperture 〉=80 orders; Two air doors of exhaust outlet and control driver mechanism are mainly by two pectinid doors (14), an electric motor type tractor (15), an extension spring (19) and the transmission mechanism formation is made up of link rod (16), door-hinge (17), rotating shaft (18), rocking arm (20), they are installed in the upper end of back shroud (3), be positioned at kuppe (10) both sides, under gauge tap (12) control, promptly open or close two pectinid doors (14) simultaneously by electric motor type tractor (15) and extension spring (19) control transmission mechanism.

2. double streamline range hood according to claim 1, it is characterized in that on the relative casing (1) of motor (4) afterbody, be processed with the circular air curtain hole of forming by a plurality of circular holes (9), all be processed with the air vent that two row of horizontal are staggered, diameter differs (8) at the top equal height of left and right side plate (2).

3. according to the described double streamline range hood of claim 1, the door-hinge (17) that it is characterized in that two pectinid doors (14) is not at grade, its Central Left Gate axle (17) is installed on the door-hinge support (23) that is fixed on the back shroud (3), right door-hinge (17) then is directly installed on the back shroud (3), two rotating shafts (18) that are connected as a single entity with link rod (16) can be done 45 ° of displacements by relative two door-hinges (17), and the development distance of two pectinid doors (14) is greater than the diameter of kuppe (10).

4. double streamline range hood according to claim 1 is characterized in that motor (4), can positive and negative bidirectional movement under the control of gauge tap (12).

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