CN100498082C - Fume sucking machine - Google Patents
Fume sucking machine Download PDFInfo
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- CN100498082C CN100498082C CNB2007100672668A CN200710067266A CN100498082C CN 100498082 C CN100498082 C CN 100498082C CN B2007100672668 A CNB2007100672668 A CN B2007100672668A CN 200710067266 A CN200710067266 A CN 200710067266A CN 100498082 C CN100498082 C CN 100498082C
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- oil smoke
- suction chamber
- chamber
- flume
- middle oil
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Abstract
The invention relates to a range hood. An upper shell is fixed on a lower shell which is divided into a lower cavity and an upper cavity by a level clapboard, and a blower shell is arranged in the lower cavity and supported on the lower shell, wherein the blower shell has a motor room and a central smoke absorption room and a smoke purifying room which is connected to the central smoke absorption room, a motor is fitted in the motor room, and the blower impeller fitted at long shaft end of the motor is located in the smoke purifying room, a lower sink is supported on the level clapboard, and the bottom of the lower sink has plural through holes connected to the smoke purifying room. In the range hood, water is converted into water screen and water fog in the smoke purifying room for washing the smoke therein, so that most of oil stain and soot particles combine together with water, and then clean gas is exhausted via an exhaust pipe, and the purifying rate is more than 90 %.
Description
Technical field
The present invention relates to a kind of kitchen utensils, is culinary smoke exhaust ventilator specifically.
Background technology
Now, the oil smoke that increasing people produces when recognizing cooking is to the harm of human body, and smoke exhaust ventilator also becomes every family necessary apparatus in kitchen.Common smoke exhaust ventilator result of use is poor, can't aspirate all oil smoke, and uses for a long time, cleans very trouble.In July, 2003, the Chinese patent 02251648.4 of Granted publication on the 2nd disclosed a kind of fume purifier of fume, the interface that is connected with blower fan or pipeline is arranged at its housing top, there is filter mesh layer the housing middle and upper part, porous plate and water inlet pipe are arranged under the filter mesh layer, porous plate has one deck at least, the surrounding edge that envelope gas is arranged between the periphery of porous plate and the housing, water inlet pipe is contained in the top of the superiors' porous plate, below the orlop porous plate drip tray is arranged, there is oil smoke to pass through the gap between drip tray periphery and the housing, under the drip tray water leg arranged.This fume purifier of fume through washing, has strengthened the fume purifying effect with oil smoke.But, in this fume purifier of fume, blower fan is received purifier upside or outdoor, more powerful blower fan be must use, cost and cost of use increased, in addition, water-collecting tray with enter mouth UNICOM, the backwater after the filtration may be polluted by advancing in the food that mouth drips to the cooking.
Summary of the invention
For the energy consumption of the fume purifier of fume that solves prior art is big, problem that may contaminated food provides a kind of low power consuming, and is clean, clean smoke exhaust ventilator easily.
For addressing the above problem, smoke exhaust ventilator of the present invention, comprise a casing device, one blower fan apparatus and a water circulating purifying device, it is characterized in that, casing device comprises a upper shell and a lower house, upper shell is fixed on the lower house, the wainscot of upper shell has a smoke exhaust pipe, upper shell is separated into a lower chambers and a upper chamber by a horizontal baffle, blower fan apparatus comprises a Blower Housing and a fan assembly, Blower Housing is positioned at bottom chamber, be bearing on the lower house, Blower Housing has a motor room, an oil smoke suction chamber and a fume purifying chamber in the middle of one, middle oil smoke suction chamber is communicated with the fume purifying chamber, the motor mounting of fan assembly is in motor room, it is indoor that the draught fan impeller that is installed in the fan assembly of motor major axis one end is positioned at fume purifying, the water circulating purifying device comprises a water pump, one water pump inlet line, an one exit of pump pipeline and a lower flume, the main shaft of water pump links to each other with the transmission of the motor major axis other end, lower flume is bearing on the horizontal baffle, the part that horizontal baffle is positioned at directly over the fume purifying chamber is a through hole, the part that the diapire of lower flume is positioned at directly over the through hole of horizontal baffle has a plurality of through holes, the wainscot of Blower Housing has respectively and corresponding two oblong aperture of motor room and fume purifying chamber, the entrance point of water pump inlet line stretches in the bottom of fume purifying chamber, and the port of export of exit of pump pipeline extend into the top of lower flume.
Smoke exhaust ventilator of the present invention, it is indoor that a plurality of through holes that water has from the diapire of lower flume are fallen fume purifying, form cascade and water smoke, oil smoke in the washing oil smoke clean room, most of greasy dirt in the oil smoke and smokeshade and water particulate are incorporated in the entry, clean gas is discharged by smoke exhaust pipe, and fume purifying reaches more than 90%.In water, add the cleaning agent that is fit to, can further strengthen the fume purifying effect.
Smoke exhaust ventilator of the present invention also comprises and has a following technical characterictic:
The water circulating purifying device also comprises a upper flume, upper flume be positioned at lower flume have a plurality of throughhole portions directly over, the diapire of upper flume has a plurality of through holes.
The water circulating purifying device also comprises a filtering trough, filtering trough comprises that a top rectangle tank part, a bottom semi-cylindrical shaped multihole filter cartridge part are connected cylindrical portions may with a left side, the diapire of top rectangle tank part has a plurality of through holes, the round wall and the right side wall of bottom semi-cylindrical shaped multihole filter cartridge part have a plurality of through holes, filtering trough connects cylindrical portions may by the left side and is sleeved on the round buss that connects on the hole wall of big hole of right diaphragm plate of Blower Housing of blower fan apparatus, and draught fan impeller is positioned at round buss.
The water circulating purifying device also comprises a gas-liquid separation plate, and the gas-liquid separation plate is installed in the upper chamber, is positioned at the side of upper flume.
Lower house has two oil smoke passages that are communicated with the middle oil smoke suction chamber of Blower Housing, one oil smoke passage is communicated with middle oil smoke suction chamber from the below of middle oil smoke suction chamber, and an oil smoke passage is communicated with middle oil smoke suction chamber from the place ahead of middle oil smoke suction chamber.
Respectively have a groove around two oblong aperture on the wainscot of Blower Housing, a sealing ring is respectively arranged in the groove.
Description of drawings
Below in conjunction with the drawings and specific embodiments smoke exhaust ventilator of the present invention is further described.
Fig. 1 is that schematic diagram is looked on the left side of smoke exhaust ventilator of the present invention;
Fig. 2 is the schematic perspective view of the upper shell in the smoke exhaust ventilator of Fig. 1 when opening the Qianmen;
Fig. 3 is the schematic perspective view of blower fan apparatus of the smoke exhaust ventilator of Fig. 1;
Fig. 4 is the cross-sectional schematic of smoke exhaust ventilator cigarette A-A line of Fig. 1;
Fig. 5 is the schematic perspective view that the upper shell of the smoke exhaust ventilator of Fig. 1 unloads front panel and Qianmen;
Fig. 6 is the schematic perspective view of lower house of the smoke exhaust ventilator of Fig. 1;
Fig. 7 is the cross-sectional schematic that is similar to Fig. 4 of an alternative embodiment of the invention;
Fig. 8 is the schematic perspective view of fan assembly of the blower fan apparatus of Fig. 3.
The specific embodiment
As shown in Figures 1 to 4, smoke exhaust ventilator of the present invention comprises a casing device 1, a blower fan apparatus 2 and a water circulating purifying device 3.
To shown in Figure 6, upper shell 200 comprises left wallboard 201, one a right wallboard 202, a front panel 203, a squab panel 204, a wainscot 205 and two left and right Qianmens 206,207 as Fig. 1, Fig. 2, Fig. 4.Left side wallboard 201 is identical right-angled trapezium plates with right wallboard 202, and lower limb is wideer than top edge.There is a hole 208 wallboard 201 belows, a left side.There is a smoke exhaust pipe 209 position near squab panel 204 and left wallboard 201 on wainscot 205.A horizontal baffle 210, the one L shaped supporting plate 214 and one that upper shell 200 also is included in the upper shell 200 lifts plate 216.Horizontal baffle 210 is positioned at the top in the hole 208 of left wallboard 201, and its left and right edge is connected with left wallboard 201, right wallboard 202 and squab panel 204 with back edge, and upper shell 200 inside are separated into lower chambers 220 and upper chamber 230.There is a big square hole 211 on horizontal baffle 210 right sides.The top edge of L shaped supporting plate 214 is connected with wainscot 205, and back edge is connected with squab panel 204.The right hand edge that lifts plate 216 is connected with right wallboard 202, and back edge is connected with squab panel 204.Left side wallboard 201, right wallboard 202, squab panel 204, wainscot 205, horizontal baffle 210, L shaped supporting plate 214 peaceful supporting plates 216 are structure as a whole available plastic injection-moulded forming.Front panel 203 removably is fixed on left wallboard 201 and the right wallboard 202 by bolt.Two left and right Qianmens 206,207 are installed in rotation on respectively on the leading edge of left wallboard 201 and right wallboard 202.
As Fig. 1, Fig. 4 and shown in Figure 5, upper shell 200 is installed on the lower house 100, the left wallboard 201 of upper shell 200, the lower limb of right wallboard 202 and squab panel 204 correspondingly is bearing in the upper left corner of vertical vertical flat partition board 107 of lower house 100 and the shoulder 112 in the upper right corner, the laterally vertical flat partition board 105 in the left side of 114 upper and lower housings 100, right laterally vertical flat partition board 106, a left side is vertical flat side plate 108 and the right laterally antemarginal shoulder 116 of vertical flat side plate 109 laterally, 117,113, on 115, and the available left wallboard 201 that is installed in upper shell 200, near right wallboard 202 and the squab panel 204 lower limb tops a plurality of screw (not shown) are fixed on upper shell 200 on the lower house 100.Unscrew this a plurality of screws, can pull down lower house 100 from upper shell 200, so that clean.
Can be provided on the edge of the squab panel 102 of lower house 100 and the squab panel 204 of upper shell 200 smoke exhaust ventilator of the present invention is installed in hangers or journal stirrup on the wall of kitchen.
Blower Housing 300 is made of a front panel 301, a squab panel 302, one left wallboard 303, one right wallboard 304, a wainscot 305 and a lower wall panels 306.Front panel 301 middle upper portion have a slot 307.Left side wallboard 303 has a slot 308.Lower wall panels 306 has a slot 309.Blower Housing 300 also is included in a left diaphragm plate 310 and a right diaphragm plate 311 of Blower Housing 300 inside.The front and rear side edge of left side diaphragm plate 310 and right diaphragm plate 311 is connected with squab panel 302 with front panel 301 respectively, and last lower limb is connected with lower wall panels 306 with wainscot 305 respectively.Left side diaphragm plate 310 and right diaphragm plate 311 are divided into a motor room 51, one a middle oil smoke suction chamber 52 and a fume purifying chamber 53 with Blower Housing 300 inside.Left side diaphragm plate 310 has an aperture that the motor reel of fan assembly 400 is passed through.Right diaphragm plate 311 has a big hole 313, connects a round buss 312 on the hole wall of big hole 313.Wainscot 305 has a left oblong aperture 314 and a right oblong aperture 316.On wainscot 305 upper surfaces, have a groove 318 around the left oblong aperture 314, have a groove 320 around the right oblong aperture 316, a sealing ring 322 is arranged in groove 318, a sealing ring 324 is arranged in groove 320.Fume purifying chamber 53 has an overflow pipe 330, is positioned on the front panel 301.Plastic injection-moulded the forming of Blower Housing 300 usefulness.
Extremely shown in Figure 5 as Fig. 3, blower fan apparatus 2 is installed in the casing device 1, the Blower Housing 300 of blower fan apparatus 2 is bearing on the top edge of the laterally vertical flat partition board 105 in a left side of the lower house 100 of casing device 1, right horizontal vertical flat partition board 106, vertically vertical flat partition board 107, the horizontal vertical flat side plate 108 in a left side and right laterally vertical flat side plate 109, be contained in the sealing ring 322 in groove 318 and the groove 320 of wainscot 305 upper surfaces of Blower Housing 300 of blower fan apparatus 2 and the upper surface of sealing ring 324 and contact, seal with the lower surface of the horizontal baffle 210 of upper shell 200.The slot 308 of the left wallboard 303 of the Blower Housing 300 of blower fan apparatus 2 is relative with the hole 208 of left wallboard 201 belows of the upper shell 200 of casing device 1, the heat radiation and the dismounting of the motor 401 of the fan assembly 400 of assurance blower fan apparatus 2.Open two left and right Qianmens 206,207 of the upper shell 200 of casing device 1, blower fan apparatus 2 whole taking-ups can be convenient to maintenance and cleaning.
Water circulating purifying device 3 comprises a water pump 500, a water pipe system 600, a filtering trough 700, a lower flume 800, a upper flume 900 and a gas-liquid separation plate 1000.As shown in Figure 8, the axle of water pump 500 links to each other with the part transmission that the axle 406 of the motor 401 of fan assembly 400 stretches out from motor 401 housings left side.Water pipe system 600 comprises a water pump inlet line 601 and an exit of pump pipeline 602.As shown in Figure 8, filtering trough 700 comprises that a top rectangle tank part 701, a bottom semi-cylindrical shaped multihole filter cartridge part 702 are connected cylindrical portions may 703 with a left side.The diapire 706 of top rectangle tank part 701 has a plurality of through holes 704.The round wall and the right side wall of bottom semi-cylindrical shaped multihole filter cartridge part 702 have a plurality of through holes 705.As shown in Figure 4, filtering trough 700 connects cylindrical portions may 703 by the left side and is sleeved on the round buss 312 that connects on the hole wall of big hole 313 of right diaphragm plate 311 of Blower Housing 300 of blower fan apparatus 2.Lower flume 800 is bearing on the horizontal baffle 210 of upper shell 200 of casing device 1.There are a plurality of through holes 806 on diapire 801 right sides of lower flume 800, and a plurality of through holes 806 are corresponding at the big square hole 211 on the right side of the horizontal baffle 210 of the distribution on diapire 801 right sides and upper shell 200.Upper flume 900 is bearing on the L shaped supporting plate 214 peaceful supporting plates 216 of upper shell 200 of casing device 1, have at the diapire 801 of lower flume 800 a plurality of through holes 806 the zone directly over.The diapire 901 of upper flume 900 has a plurality of through holes 902.Gas-liquid separation plate 1000 is arcs, and its right hand edge is connected on the L shaped supporting plate left side wall.The entrance point of water pump inlet line 601 stretches in the bottom of fume purifying chamber 53 of Blower Housing 300.The port of export of exit of pump pipeline 602 extend into the top of upper flume 900.Integral body for the ease of blower fan apparatus 2 is taken out, and can distinguish mounting pipe joint 603,604 and valve on water pump inlet line 601 and exit of pump pipeline 602.
The course of work of smoke exhaust ventilator of the present invention is as follows:
After smoke exhaust ventilator installed, in fume purifying chamber 53, add a certain amount of water, the water surface in fume purifying chamber 53 is lower than semi-cylindrical shaped multihole filter cartridge part 702 bottoms, bottom of filtering trough 700, forms a pond 99, and the water of volume is discharged from the overflow pipe 330 of fume purifying chamber 53.Actuating motor 401, the water in the fume purifying chamber 53 enters water pump 500 through water pump inlet line 601, after being boosted by water pump 500, injects in the upper flume 900 through exit of pump pipeline 602.The water that injects in the upper flume 900 flows out from a plurality of through holes 902 of the diapire 901 of upper flume 900, forms cascade and water smoke on the right side of the upper chamber 230 of upper shell 200 downwards, falls in the lower flume 800.The water of falling in the lower flume 800 flows out from a plurality of through holes 806 on diapire 801 right sides of lower flume 800, in fume purifying chamber 53, form cascade and water smoke downwards, a part is fallen in the pond 99 of 53 bottoms, fume purifying chamber, and a part is fallen in the top rectangle tank part 701 of filtering trough 700.The water of falling in the top rectangle tank part 701 has a plurality of through holes 704 to flow out from the diapire 706 of top rectangle tank part 701, in the bottom of filtering trough 700 semi-cylindrical shaped multihole filter cartridge part 702, form cascade and water smoke downwards, fall in the pond 99 of 53 bottoms, fume purifying chamber from the round wall of bottom semi-cylindrical shaped multihole filter cartridge part 702 and a plurality of through holes 705 of right side wall at last.
In the time of actuating motor 401, draught fan impeller 402 rotations, formation negative pressure in middle the oil smoke suction chamber 52 of Blower Housing 300.At this moment, in the middle of most of oil smoke upwards enters from the space between laterally vertical flat partition board 105 in the left side of lower house 100 and the right laterally vertical flat partition board 106 along oblique dull and stereotyped 121 and tiltedly dull and stereotyped 122 of lower house 100 in the oil smoke suction chamber 52, the fraction oil smoke from the front panel 101 of lower house 100 and the space between the vertically vertical flat partition board 107 upwards the slot 307 from front panel 301 middle upper portion of Blower Housing 300 enter in the middle oil smoke suction chamber 52 of Blower Housing 300.The middle oil smoke suction chamber 52 interior whole oil smoke that enter Blower Housing 300 enter in the left side connection cylindrical portions may 703 of filtering trough 700, be discharged in the bottom semi-cylindrical shaped multihole filter cartridge part 702 of filtering trough 700 after draught fan impeller 402 pressurizations, contact with water smoke with the cascade in it, carry out the washing first time, most of greasy dirt in the oil smoke and smokeshade combine with the water particulate, stick on the inwall of bottom semi-cylindrical shaped multihole filter cartridge part 702, or discharge with the oil smoke that contains a spot of greasy dirt and smokeshade from the round wall of bottom semi-cylindrical shaped multihole filter cartridge part 702 and a plurality of through holes 705 of right side wall, in the gravity effect drops to the pond 99 of 53 bottoms, fume purifying chamber.The oil smoke that contains a spot of greasy dirt and smokeshade upwards arrives the upper space in the fume purifying chamber 53, contact with water smoke with cascade in it, is carried out for the second time and washs.Then, the oil smoke that has contained the greasy dirt of minute quantity and smokeshade this moment passes a plurality of through holes 806 on diapire 801 right sides of lower flume 800, upwards arrive the space on the right side of the upper chamber 230 of upper shell 200, contact with water smoke with the cascade in it, be carried out washing for the third time, wherein only contain the greasy dirt and the smokeshade of trace.At last, only containing the greasy dirt of trace and the oil smoke of smokeshade flows left, bump against with gas-liquid separation plate 1000, water particulate wherein is separated to get off, fall on the diapire 801 of lower flume 800, only contain the greasy dirt of trace and the oil smoke of smokeshade and discharge from the gas-liquid separation plate 1000 on the wainscot 205 of upper shell 200 through the slit between the diapire 801 of gas-liquid separation plate 1000 left hand edges and lower flume 800.
Shown in Figure 7 is another novel embodiment of this use, it and Fig. 1 are to the difference of the novel embodiment of this use shown in Figure 6, individual position has been changed in the motor room 51 and the fume purifying chamber 53 of blower fan apparatus 2, the also corresponding position of having adjusted of lower flume 800, upper flume 900, gas-liquid separation plate 1000 and gas-liquid separating plate 1000.
, but should be understood that under the situation that does not break away from relevant protection domain defined by the claims that those skilled in the art can make change and/or revise according to embodiments of the invention describing the present invention property and nonrestrictive description.
Claims (10)
1, a kind of smoke exhaust ventilator, comprise a casing device, one blower fan apparatus and a water circulating purifying device, it is characterized in that, casing device comprises a upper shell and a lower house, upper shell is fixed on the lower house, the wainscot of upper shell has a smoke exhaust pipe, upper shell is separated into a lower chambers and a upper chamber by a horizontal baffle, blower fan apparatus comprises a Blower Housing and a fan assembly, Blower Housing is positioned at bottom chamber, be bearing on the lower house, Blower Housing has a motor room, an oil smoke suction chamber and a fume purifying chamber in the middle of one, middle oil smoke suction chamber is communicated with the fume purifying chamber, the motor mounting of fan assembly is in motor room, it is indoor that the draught fan impeller that is installed in the fan assembly of motor major axis one end is positioned at fume purifying, the water circulating purifying device comprises a water pump, one water pump inlet line, an one exit of pump pipeline and a lower flume, the main shaft of water pump links to each other with the transmission of the motor major axis other end, lower flume is bearing on the horizontal baffle, the part that horizontal baffle is positioned at directly over the fume purifying chamber is a through hole, the part that the diapire of lower flume is positioned at directly over the through hole of horizontal baffle has a plurality of through holes, the wainscot of Blower Housing has respectively and corresponding two oblong aperture of motor room and fume purifying chamber, the entrance point of water pump inlet line stretches in the bottom of fume purifying chamber, and the port of export of exit of pump pipeline extend into the top of lower flume.
According to the described smoke exhaust ventilator of claim 1, it is characterized in that 2, the water circulating purifying device also comprises a upper flume, upper flume be positioned at lower flume have a plurality of throughhole portions directly over, the diapire of upper flume has a plurality of through holes.
3, according to claim 1 or 2 described smoke exhaust ventilators, it is characterized in that, the water circulating purifying device also comprises a filtering trough, filtering trough comprises a top rectangle tank part, one bottom semi-cylindrical shaped multihole filter cartridge part is connected cylindrical portions may with a left side, the diapire of top rectangle tank part has a plurality of through holes, the round wall and the right side wall of bottom semi-cylindrical shaped multihole filter cartridge part have a plurality of through holes, filtering trough connects cylindrical portions may by the left side and is sleeved on the round buss that connects on the hole wall of big hole of right diaphragm plate of Blower Housing of blower fan apparatus, and draught fan impeller is positioned at round buss.
According to claim 1 or 2 described smoke exhaust ventilators, it is characterized in that 4, the water circulating purifying device also comprises a gas-liquid separation plate, the gas-liquid separation plate is installed in the upper chamber, is positioned at the side of upper flume.
According to the described smoke exhaust ventilator of claim 3, it is characterized in that 5, the water circulating purifying device also comprises a gas-liquid separation plate, the gas-liquid separation plate is installed in the upper chamber, is positioned at the side of upper flume.
6, according to claim 1 or 2 described smoke exhaust ventilators, it is characterized in that, lower house has two oil smoke passages that are communicated with the middle oil smoke suction chamber of Blower Housing, one oil smoke passage is communicated with middle oil smoke suction chamber from the below of middle oil smoke suction chamber, and an oil smoke passage is communicated with middle oil smoke suction chamber from the place ahead of middle oil smoke suction chamber.
7, according to the described smoke exhaust ventilator of claim 3, it is characterized in that, lower house has two oil smoke passages that are communicated with the middle oil smoke suction chamber of Blower Housing, one oil smoke passage is communicated with middle oil smoke suction chamber from the below of middle oil smoke suction chamber, and an oil smoke passage is communicated with middle oil smoke suction chamber from the place ahead of middle oil smoke suction chamber.
8, according to the described smoke exhaust ventilator of claim 4, it is characterized in that, lower house has two oil smoke passages that are communicated with the middle oil smoke suction chamber of Blower Housing, one oil smoke passage is communicated with middle oil smoke suction chamber from the below of middle oil smoke suction chamber, and an oil smoke passage is communicated with middle oil smoke suction chamber from the place ahead of middle oil smoke suction chamber.
9, according to claim 1 or 2 described smoke exhaust ventilators, it is characterized in that, respectively have a groove around two oblong aperture on the wainscot of Blower Housing, a sealing ring is respectively arranged in the groove.
10, according to the described smoke exhaust ventilator of claim 8, it is characterized in that, respectively have a groove around two oblong aperture on the wainscot of Blower Housing, a sealing ring is respectively arranged in the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100672668A CN100498082C (en) | 2007-02-13 | 2007-02-13 | Fume sucking machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100672668A CN100498082C (en) | 2007-02-13 | 2007-02-13 | Fume sucking machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101055097A CN101055097A (en) | 2007-10-17 |
| CN100498082C true CN100498082C (en) | 2009-06-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100672668A Expired - Fee Related CN100498082C (en) | 2007-02-13 | 2007-02-13 | Fume sucking machine |
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| Country | Link |
|---|---|
| CN (1) | CN100498082C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108784411A (en) * | 2018-06-29 | 2018-11-13 | 邢东兵 | The roasting cabinet of environmental protection |
| CN109668198A (en) * | 2018-12-29 | 2019-04-23 | 刘文萱 | A kind of Water curtain type cooker hood |
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2007
- 2007-02-13 CN CNB2007100672668A patent/CN100498082C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN101055097A (en) | 2007-10-17 |
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Granted publication date: 20090610 Termination date: 20130213 |