CN2400720Y - Drum cyclone self-suction cooking fume remover - Google Patents
Drum cyclone self-suction cooking fume remover Download PDFInfo
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- CN2400720Y CN2400720Y CN 99255538 CN99255538U CN2400720Y CN 2400720 Y CN2400720 Y CN 2400720Y CN 99255538 CN99255538 CN 99255538 CN 99255538 U CN99255538 U CN 99255538U CN 2400720 Y CN2400720 Y CN 2400720Y
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Abstract
The utility model relates to a roller cyclone type silent self-suction multipurpose fume extractor which can be easily cleaned. The utility model is composed of a double-supporter stainless steel roller in which fan blades are spirally arranged, a double-supporter multiple high-performance electric motor connected through a belt pulley, a deep suction type machine casing which is arranged on a vibration-proof silencing keel frame, a pressure-sensitive energy-saving wind air door, a double-oil-passage built-in oil storage box with a switch window, a microcomputer control system, etc., wherein, the outside of the deep suction type machine casing is provided with a cambered surface; an oil-catching ring is arranged below the roller. The utility model, which can fully utilizes the fluid mechanics principle, has large suction, saves electricity and has no noise. The fume extractor which is easy to clean can automatically exhaust fume, without power pressure-sensor, and decontamination effect is good. The utility model which can be used in families and can be widely used in environments where pollution is severe, such as dining rooms, restaurants, etc., is a multi-type fume extractor which integrates various advantages into one.
Description
The utility model relates to a kind of device that takes out stains, and particularly a kind ofly utilizes air to flow or gas flow is removed a kind of device of oil smoke, for the usefulness of making smoke pumping in the big environment of fume pollutions such as family and restaurant, various dining room.
Smoke exhaust ventilator on the existing market is numerous in variety, and function is advanced day by day, and smoke exhaust ventilator is just bigger towards draft, more power saving, dry sound are littler, and the higher direction of the control more automaticities of function develops.But product also exists blemish in an otherwise perfect thing and needs improved aspect now.
1, energy-conservation and increase draft aspect
Also not making full use of fluid mechanics principle, no matter be updraft type or side-suction type, all is that the flabellum of keeping watch directly is contained on the axis of motor, and motor is in occupation of the centre position, the thrust air-flow that the fan leaf produces, be dispersed in motor around.Thousand aerofoil profile fan leaves mostly are vertical arrangements, the thrust that produces is the power that the annular side direction promotes, the air-flow that nature is risen disperses, and blow vent only accounts for and all pushes away the gas 1/3-1/4 in one week, remaining part not only can not form effective push but also can produce part resistance air-flow vortex, so just can not bring into play and utilize the airway dysfunction that pushes away of fan leaf effectively, wasted certain energy, though also can produce stronger draft, but this is the effect of that part of generation of 1/3-1/4 in whole fan leaves, and in order to increase the power of bleeding, many producers have descended many time on motor, though can improve the power of bleeding, but this will be a cost to improve power consumption still, the thrust of the fan leaf generation of vertically arranging is to side direction, air-flow to be introduced in the cabinet deposit air chamber after just can enter chimney, air-flow will be through the passage of complications, though the coefficient of friction of gas is very little, but the air-flow that the flow velocity that produces when motor operation is very fast, if the flue complications will make air pressure increase and form certain resistance, overcoming this part resistance also will increase power consumption.
2, fume pollution aspect
Soot particles very easily adheres to, the pollution that causes year in and year out reduces the function of smoke exhaust ventilator on the one hand, and clean very inconvenient, therefore many producers pollute as an important problem reducing, generally used not oil sticking surface lacquer, but type and oil smoke path be designed to the problem that fume pollution is difficult to overcome, motor and casing thereof are arranged in the middle of the cigarette road, this must become the target that greasy dirt dyes, the oil that it produces above also needs special oil circuit, and the oil circuit of the motor portion of as above suction type smoke exhaust ventilator also must have the swab case of a special use.
This swab case generally all is arranged on the plume central top.This had both occupied favourable space, and itself becomes the target of fume pollution again.
Thousand wing fan leaf vertical array, can not utilize the liter of rising of oil smoke self, directly enter flue, oil smoke all will be through the promotion of passing through fan leaf, the chance that the fan leaf is contacted with oil smoke increases, the complications of flue have increased this chance again, deposit smoke-box and mostly are arranged in the casing, and this part is the easiest pollution of oil smoke and cleans difficulty.
3, reduce dry sound aspect
Smoke exhaust ventilator produces the reason that dry sound mainly contains following aspect:
1), the rotation of motor itself and vibration.
2), the rotation of fan leaf and vibration.
3), the whirling vibration of air-flow.
4), shell vibration.
Present many producers are doing a large amount of research aspect the dry sound reducing, and as happy the having only wind, do not have sound of ten thousand families, the dry sound of the product of some famous brand producers is very little, but in order better to fall low-noise, aspect structural design, has following problem:
The support of motor, motor one end is fixed, an end dissociative, the fan leaf is connected the free-end of motor, fan leaf one end dissociative is the obstacle that causes motor and fan leaf generation vibration and dry sound to be difficult to overcome, and the complications of flue are the reasons that causes airstream vibration and vibrate casing.
Plume aspect when 4, unpowered
The air of air pressure eminence flows to the air pressure lower, it also is this reason that flue gas rises, the same with general oven flue, when cooking stove begins to kindle a fire and cook a meal or heats up water, fire, cigarette and steam, oil smoke etc. form a hyperbar, if the flue in the general cooking stove, the suction that it just produces a nature enters the space with the cigarette road, the cooking stove of current use gas range or other form, when kindling a fire and cook a meal or heat up water, be not all will open smoke exhaust ventilator, can take very much like that, only big at oil smoke, steam is just opened smoke exhaust ventilator for a long time.Do not open smoke exhaust ventilator at ordinary times, this situation year in and year out, also polluted in the kitchen, though reason is existing a spot of pollution when kindling a fire and cook a meal or heating up water, the pressure of air obviously increases on the stove, tangible rising steam or oil smoke are arranged, the valve switch of smoke exhaust ventilator flue portion but its pressure is not opened.Present valve switch is to be made by plastic sheet, its weight is about the 25-45 gram, every square centimeter of air pressure restrains at 1-1.5 and could beat when above, air flow in the time of can only starting by smoke exhaust ventilator just can be opened, and when not driving smoke exhaust ventilator, only do not open, so when not starting shooting by rising the thermal current pressure that rises naturally, air-flow can not lean on rising of self to rise eliminating, and this has just caused certain pollution.Generally be difficult to accomplish to take very much like that once the start of lighting a fire.
5, scope of application aspect
Present smoke exhaust ventilator generally all is applicable to family, and the restaurant, dining room, the high-power smoke exhaust ventilator that the environment of long-time a large amount of fume pollutions is not fit to makes that the fume pollution between restaurant, many dining rooms, cooking stove is serious, is the major reason that influences restaurant, dining room poor hygienic.
The purpose of this utility model provides a kind of, can make full use of fluid mechanics principle and whirlwind low pressure and rise and rise principle, reduces the resistance of the main gas channel of flue, more effectively bring into play the motive force of fan leaf, reach more power saving, draft is bigger, and dry sound is littler, pollute few, easy cleaning also can be brought into play hot gas and rise the power smoke evacuation that rises naturally when not starting shooting, model is various, not only gone for family but also can be applicable to variously cooking restaurant, the dining room smoke exhaust ventilator that oil smoke is very big for a long time in enormous quantities.
The utility model is achieved in that
A kind of cyclone type, suction is big, power saving, there is not dry sound, pollute few, easy cleaning, self-suction, can be used for the smoke exhaust ventilator that family can be widely used in the heavy-polluted environment of oil smoke steam such as restaurant, various dining room again, by the fan blade helical arrangement at interior stainless steel truncated cone-shaped hollow cylinder, the suitable for reading of cylinder directly is inserted in the round platform hollow shape collar extension that is fixed on keel frame and the housing, be that the tubular collar extension directly is inserted in the chimney above the round platform collar extension, pressure-sensitive energy-conservation general mood door is arranged between round platform collar extension and the tubular collar extension, there is the oil ring that connects that is connected on the housing at cylinder end opening place, connect protection network is arranged on the oil ring, connect the oil ring rear lower oil outlet is arranged, oil outlet has the stream oil groove outward, entering housing outside housing after, the stream oil groove links to each other with oil guide pipe, oil guide pipe is divided into two-way and enters the trapped fuel box that is arranged in the transparency window in the outer part of the housing back lower place respectively, between oil guide pipe and the trapped fuel box switch is arranged, there is ∏ type ring the outer top of cylinder, bearing is arranged in the ring, bearing fixing is on the keel frame, also there is ∏ type ring the outer below of cylinder, bearing is arranged in the ring, bearing fixing is on the keel frame, there is the belt pulley of band groove at the outer middle part of cylinder, link to each other by the belt pulley on the concordant motor rotary shaft of endless V-belt and its, motor is arranged on the side of cylinder in the housing, the base of motor is fixed on the keel frame, its turning cylinder extension also is fixed on the keel frame by bearing, the keel frame is big by intensity, lightweight aluminium-alloy pipe is with triangle and the trapezoidal vibration-proof structure that connects into, and the rubber blanket that it is eliminated the noise by vibrationproof links to each other with dark suction shape housing.Described cylinder is to make hollow round table form height 180-600mm by the stainless steel of thick 1-2mm, back cut diameter 140-280mm, lower port diameter 240-600mm, the cylinder spiral is being arranged the fan blade 30-80 sheet that varies in size, the thickness of fan blade is 0.5-1mm, wide 25-600mm, long 80-180mm, 30 °-65 ° of gradients.Described pressure-sensitive energy-conservation general mood door, be two semicircular structures making by special fiber oilpaper sheet, its thickness is 0.1-1mm, weight is the 1-3 gram, the edge thickens, and its turning cylinder is to be made by finer wire, is bonded at straight flange 4-8mm place from fan leaf semicircle with the book film, the extension of fan blade and turning cylinder has arc notch, and rotating axial region has protective cover and sealing strip and 90 ° of shelves.The described oil ring that connects is the circular groove structure that is formed by the stainless steel substrates compacting, the degree of depth of groove is 6-8mm, width is 8mm, there is a diameter 6-8mm oil outlet back lower place of ring, the oil outlet below is the stream oil groove made from the housing same material, the protection network that upwards has the stainless steel strip of diameter 2-4mm to make on the interior edge that connects oil ring, the sump oil on the protection network can flow into and connect oil ring.
Compare the good effect that the utlity model has with prior art:
One, suction is big
Because the utility model moves on to side one-tenth side putting type with the middle of the motor of routine, in the mobile optimal spatial of oil smoke, be provided with hollow type round platform cylinder, on the inner wall of rotary drum with spiral-shaped fan blade of having arranged gradient 30 °-65 °, naturally rise on the direction that rises at oil smoke and to add fuel to the flames, not only can form powerful lifting force, all the thrust obliquely upward of blade can both make full use of.And in cylinder central authorities and downward big zone, produce one and rotate depression belt, make ambient air form the vortex ascending air of a similar whirlwind shape, the natural climbing power that this vortex ascending air forms can significantly reduce the consumption of electric energy, and can be than cooking fume-collecting and the constraint in the big zone, make oil smoke that a bit diffusion can not be arranged, effectively utilized principles such as fluid force.
Two, power saving
1, the utility model is owing to adopted novel general mood door gear to need only the strength automatic smoke exhausting of formation hyperbar with regard to leaning on hot gas to rise such as lighting a fire, heat up water when not starting shooting.
2, use the smoking drum apparatus, the whirlwind that formation vortex ascending air has effectively utilized the generation of principles such as thermal current muscle power has the natural climbing power of cyclone.
Though 3, its weight of drum apparatus is bigger than the fan leaf weight of prior art use, the thrust of its generation can all effectively be utilized.The weight of cylinder is big; just when starting, consume some electricity more, its inertia has been arranged in the rotation process, do not consumed too much electric energy; because its inertia greatly also will be rotated further the long time, the contribution of being done during this period of time after the outage can be hanged down the electric energy that consume when disappearing starting more after shutdown.Will not stop just to stop because of smoke pumping should not resemble automobile, it can be with remaining oil smoke emptying, and action of inertia can be utilized fully at once.
4, because motor and cylinder all are provided with lower support and duplex bearing, promptly reduced friction, reduced the vibration that produces owing to single-ended support again, the swing of free-end is to want consumed power.
So overall calculating is got off, still than existing type power saving.
Three, smoking is effective
The utility model has particularly improved the general mood door because draft is big, and lampblack-pumped effect is improved greatly.
Four, pollute few easy cleaning
The utility model is totally enclosed owing to having designed the drum-shape fume exhaust device on whole oil smoke passage, and owing to utilized whirlwind shape airflow fume extracting, not the thrust that whole oil smoke all leans on fan blade, most of oil smoke is self suction by eddy airstream, fan blade is little with the ratio that smoking contacts, and just pollute and lack, and easy cleaning, as long as protection network is taken off whole zones of polluting all to have come out, do not need to take apart casing and clean.
Five, the scope of application is wide
Can be made into various models, as domestic type and in, large-scale being widely used in improve the sanitary condition in dining room, restaurant in dining room, various restaurant greatly.
Six, dry sound is little
The utility model is owing to utilized following measure:
1. the vibrationproof noise elimination rubber blanket between casing and keel frame;
2. triangle and trapezoidal vibrationproof keel frame;
3. the both-end of motor supports, and does not produce vibration and swing;
4. the both-end of cylinder supports, and does not produce vibration and swing;
5. do not deposit smoke-box, air-flow directly enters flue, does not produce air-flow and reverberates;
6. air-flow has no chance to contact with casing, does not produce hull vibration;
Eliminated the root that produces dry sound from above-mentioned many-side, therefore dry sound of the present utility model has dropped to few degree.
Below in conjunction with accompanying drawing, embodiment further describes to the utility model
Fig. 1 is the utility model external structure schematic diagram
Fig. 2 is the A-A cross-sectional view of the utility model Fig. 1
Fig. 3 is the B-B cross-sectional view of the utility model Fig. 1
Fig. 4 is a syndeton schematic diagram about cylinder of the present utility model and the motor
Fig. 5 is the utility model machine keelson shelf structure schematic diagram
Fig. 6 is the cross section structure schematic diagram of the utility model Fig. 4
Fig. 7 is the utility model general mood door schematic diagram
Shown in Fig. 2-4, be mouth 7 above the cylinder 27, it below the cylinder 27 top ∏ shape ring 8, there is belt pulley 9 at the cylinder middle part, ∏ shape ring 10 is also arranged at cylinder 27 bottoms, the cylinder end opening has protection network 28, it with connect oil ring 14 and link to each other, there is right outer storage tabacco barn 11 on cylinder 27 right sides, and there is the outer storage in left side tabacco barn 3 in the left side, about storage tabacco barn both sides two oil circuit oil guide pipe switches 12 are arranged, trapped fuel box and transparency window 13 are arranged under the tool, the cylinder left side links to each other with motor 5 with belt 32, on motor 5 turning cylinders belt pulley 4 is arranged, and turning cylinder has for 30 times the important actor oblique crank Z to hold 15, motor 5 is fixed on plate 6 places with casing 1 and keel frame 36, and storehouse 2 stores the usefulness of keel frame 36 in the casing.As shown in Figure 3, gauge tap 17 is arranged above the casing front 16, outer storage tabacco barn 18 and housing rear portion 19 oil storage cigarettes are used before the casing.As shown in Figure 4, in the middle of chimney 22 and the outlet flue 7 general mood door 21 is arranged, cylinder 27 top ∏ shapes are encircled 8 places annular bearing 23, ∏ shape in cylinder 27 bottoms is encircled 10 places annular bearing 24, there are belt pulley 9 and belt 32 in cylinder 27 middle parts, are connected with below cylinder 27 bottoms are with protection network 28 and connect oil ring 14, and connecing oil ring outside extension has fixed head 25, connecing the oil ring rear lower has oil outlet 29, on the outer small casing of oil outlet oil guide pipe 33 is arranged.
Be installed in the belt pulley 4 on the motor rotation axis, diameter 80-120mm, thickness 18-26mm, it is concordant with the belt pulley of cylinder middle part, and by the belt connection, motor can drive cylinder simultaneously and rotate when rotating, and the rotating speed of motor upper belt pulley increasing diameter ambassador cylinder increases.Many retaining smoke exhaust ventilator definite-purpose motors 5 are fixed on keel frame top above it, be fixed on the following keel frame below by spring bearing.Outlet flue 7 on the casing, its mid portion and shell fuse, and are fixed on the keel frame, and its top is straight tubular collar extension, overall diameter is than the little 4-6mm of general chimney, high 40-60mm, chimney just overlaps thereon, and its bottom is the truncated cone-shaped collar extension, be enclosed within cylinder outside suitable for reading, with cylinder the gap of 2-4mm is arranged, do not influence the normal rotation of cylinder, can prevent that again oil smoke from spilling.The ∏ shape on the top of cylinder ring 8, it and cylinder are closely linked, and are seated on the annular bearing below it, play support, resting barrel, and the effect by the bearing rotation.Be installed in the belt pulley 9 at cylinder middle part, it is concordant with the belt pulley on the motor, is connected by belt.The ∏ shape of cylinder bottom ring 10, it and cylinder are closely linked, and are seated on the annular bearing below it and play support, and be fixing, and the effect by the bearing rotation.The switch 12 of oil guide pipe in two oil circuits, oil guide pipe enters in the housing from the oil-out that connects oil ring, divide two-way two inferior horns to about the housing rear wall, lead to the trapped fuel box below the switch, when cleaning trapped fuel box, close this switch, smoke exhaust ventilator can use as usual, and at this moment sump oil can enter the trapped fuel box of opposite side.The trapped fuel box is placed in the transparent window that lucite makes, and opens window and can take out the trapped fuel box and clear up.The front 16 of domestic type smoke exhaust ventilator housing is an arc.Left and right storage tabacco barn in the A-A section is high together, and divides a word with a hyphen at the end of a line mutually.Housing back 19, the aspect ratio front of back are slightly high.With connect oil ring after below the oil guide pipe 31 that links to each other of oil outlet, it just enters in the housing after oil outlet pastes storehouse, back surface 4-6mm, is divided into two pipes of left-hand dextrad towards the trapped fuel box.Motor rotation axis 30, its bottom are inverted important actor shapes, and it is to hold with the important actor oblique crank Z to link to each other.Shaft of motor is just inserted wherein, and motor rotary shaft is played support, fixing with its relation and effect of bearing mutually.The extension of both sides is the parts that fix with keel frame and housing under the bearing.Be connected the belt 32 between the belt pulley on drum pulley and the motor, this belt connected mode preferably adopts 8 words to intersect, and can increase attrition surface and friction like this.Connect the fixed head 25 of oil ring outside extension, totally 4 of this kind fixed heads will connect oil ring and protection network is fixed on the housing by screw, be easy to during cleaning take off, and can clean in the cylinder and need not open casing.Connect the oil outlet 29 of oil ring rear lower, small casing is arranged outside it.Be connected the oil guide pipe on the small casing 33 on the oil outlet.The bearing 23 on cylinder top, bearing one circle is outer 4 fixed heads, by this plate with bearing fixing on the keel frame.The bearing 24 of cylinder bottom, bearing one circle is outer 4 fixed heads, by this plate with bearing fixing on the keel frame.Connect the fixed head 25 on the oil ring, will connect oil ring by this plate and be fixed on the housing.Be installed in the fan blade 26 on the inner wall of rotary drum, the fan blade of domestic type machine is less, and the medium-sized large scale computer that the restaurant, dining room is used, cylinder is big, the also corresponding increase of fan blade.Casing keelson frame 36, this keel frame be with triangle and trapezium structure as shown in Figure 5, with firm and reduce vibration and with casing and machine in the position of each device adapt, can supporting device and shell, and with do not gain in weight and designs simplification for well.The keel frame of different model type can be designed to difformity with above-mentioned purpose.The position of motor 5 is 34, and the position that cylinder 27 is installed is 35, and 20 among Fig. 6 sets a roof beam in place for the keel middle part in addition, and 26 is the fan blade on the cylinder.As shown in Figure 7, wind bulla 37, it forms with the fiber oilpaper is special, in light weight, intensity is big, the book sheet of oily dirt free, high temperature resistant, acid and alkali-resistance, the outer rim of its arc has the line of thickening, increasing its intensity, about between two wind bullas gapped in case sump oil stick, there is arc notch the axial region both sides of general mood door, are to prevent that sump oil from flowing into axial region.This is for after preventing that the wind bulla from being blown afloat for 90 ° of retainings 38, about two unlikely holding up excessively and drawing close, because of its fork is thin light again, two by influencing normal function because of the sump oil above it sticks mutually after last.General mood door sheet axial region 39, the sealing protection cover on the rotational sleeve.The axle 40 of wind bulla, it is made by thin steel bar, is stained with to be clipped in the wind bulla.
Claims (4)
1, a kind of cylinder cyclone type self-suction smoke exhaust ventilator, it is by fan, motor, chimney, bearing, the oil guide pipe switch, oil box, shell is formed, it is characterized in that: fan blade (26) helical arrangement is on stainless steel truncated cone-shaped hollow cylinder, the suitable for reading of cylinder (27) directly is inserted in the round platform hollow shape collar extension that is fixed on keel frame (36) and the housing (1), be that the tubular collar extension directly is inserted in the chimney above the round platform collar extension, pressure-sensitive energy-conservation general mood door (21) is arranged between round platform collar extension and the tubular collar extension, cylinder end opening place has to be connected and connects oil ring (14) on the housing, connect protection network (28) is arranged on the oil ring (14), connect oil ring (14) rear lower oil outlet (29) is arranged, the stream oil groove is arranged outside the oil outlet (29), entering housing outside housing after, the stream oil groove links to each other with oil guide pipe (33), oil guide pipe is divided into two-way and enters the trapped fuel box (13) that is arranged in the transparency window in the outer part of the housing back lower place respectively, between oil guide pipe and the trapped fuel box switch is arranged, there is ∏ type ring (8) the outer top of cylinder, bearing (23) is arranged in the ring, bearing fixing is on keel frame (36), also there is ∏ type ring (10) the outer below of cylinder (27), bearing (24) is arranged in the ring, bearing fixing is on keel frame (36), there is the belt pulley (9) of band groove at the outer middle part of cylinder (27), link to each other with belt pulley (4) on its concordant motor rotary shaft (30) by endless V-belt (32), motor (5) is arranged on the side of the interior cylinder of housing (1) (27), the base of motor (5) is fixed on the keel frame (36), its turning cylinder extension also is fixed on the keel frame by bearing (15), the keel frame is big by intensity, lightweight aluminium-alloy pipe is with triangle and the trapezoidal vibration-proof structure that connects into, and the rubber blanket that it is eliminated the noise by vibrationproof links to each other with dark suction shape housing.
2, smoke exhaust ventilator according to claim 1, it is characterized in that: cylinder is to make hollow round table form height 180-600mm by the stainless steel of thick 1-2mm, back cut diameter 140-280mm, lower port diameter 240-600mm, the cylinder spiral is being arranged the fan blade 30-80 sheet that varies in size, and the thickness of fan blade is 0.5-1mm, wide 25-600mm, long 80-180mm, 30 °-65 ° of gradients.
3, smoke exhaust ventilator according to claim 1, it is characterized in that: pressure-sensitive energy-conservation general mood door, be two semicircular structures making by special fiber oilpaper sheet, its thickness is 0.1-1mm, and weight is the 1-3 gram, and the edge thickens, its turning cylinder is to be made by finer wire, be bonded at straight flange 4-8mm place from fan leaf semicircle with the book film, the extension of fan blade and turning cylinder has arc notch, and rotating axial region has protective cover and sealing strip and 90 ° of shelves.
4, smoke exhaust ventilator according to claim 1, it is characterized in that: connecing oil ring is the circular groove structure that is formed by the stainless steel substrates compacting, the degree of depth of groove is 6-8mm, width is 8mm, there is a diameter 6-8mm oil outlet back lower place of ring, the oil outlet below is the stream oil groove made from the housing same material, and the protection network that upwards has the stainless steel strip of diameter 2-4mm to make on the interior edge that connects oil ring, the sump oil on the protection network can flow into and connect oil ring.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 99255538 CN2400720Y (en) | 1999-12-06 | 1999-12-06 | Drum cyclone self-suction cooking fume remover |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 99255538 CN2400720Y (en) | 1999-12-06 | 1999-12-06 | Drum cyclone self-suction cooking fume remover |
Publications (1)
Publication Number | Publication Date |
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CN2400720Y true CN2400720Y (en) | 2000-10-11 |
Family
ID=34038878
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN 99255538 Expired - Fee Related CN2400720Y (en) | 1999-12-06 | 1999-12-06 | Drum cyclone self-suction cooking fume remover |
Country Status (1)
Country | Link |
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CN (1) | CN2400720Y (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013155678A1 (en) * | 2012-04-16 | 2013-10-24 | 杨云华 | Vortex air flow type range hood |
-
1999
- 1999-12-06 CN CN 99255538 patent/CN2400720Y/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013155678A1 (en) * | 2012-04-16 | 2013-10-24 | 杨云华 | Vortex air flow type range hood |
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C19 | Lapse of patent right due to non-payment of the annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |