CN112393302B - Range hood and control method thereof - Google Patents
Range hood and control method thereof Download PDFInfo
- Publication number
- CN112393302B CN112393302B CN202011392070.8A CN202011392070A CN112393302B CN 112393302 B CN112393302 B CN 112393302B CN 202011392070 A CN202011392070 A CN 202011392070A CN 112393302 B CN112393302 B CN 112393302B
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- Prior art keywords
- ring
- filter
- filtering
- nozzle
- pipe
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2035—Arrangement or mounting of filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2021—Arrangement or mounting of control or safety systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2057—Removing cooking fumes using a cleaning liquid
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
Abstract
The invention relates to the field of range hoods and discloses a range hood and a control method thereof, when a filtering component of the range hood needs to be cleaned, a motor is only needed to be started to replace the used filtering component and a new filtering component, then a cleaning spray head is adopted to clean the used filtering component, the used filtering component is standby when the used filtering component is replaced next time, the filtering component does not need to be manually disassembled and cleaned, and the problems that the time and the labor are wasted and the efficiency is low because the filtering component of the existing range hood is manually disassembled are solved; meanwhile, the structure of the cleaning spray head is optimized, so that the cleaning efficiency of the filter screen is greatly improved, and the problem of low cleaning efficiency of the existing spray nozzle is solved.
Description
Technical Field
The invention relates to the field of range hoods, in particular to a range hood and a control method of the range hood.
Background
With the rapid development of the society, the range hood has been widely used in the kitchen, and the oil filter screen is arranged at the oil smoke inlet of the smoke collecting hood to filter the oil stain in the oil smoke in the existing range hood, but the oil filter screen is only arranged at the oil smoke inlet of the smoke collecting hood, so that the oil stain in the oil smoke cannot be completely filtered, and the oil smoke which is not completely purified is discharged into the air to cause air pollution.
The application number is CN201821013508.5, the name is "a dismantlement formula oil smoke treatment pipe" patent application through set up dust absorption component on oil smoke treatment pipe to can further improve the purifying effect of oil smoke. However, when the dust collection assembly needs to be replaced and cleaned, the dust collection assembly can only be disassembled manually, which wastes time and labor and is low in efficiency. In addition, in the prior art, a nozzle capable of spraying cleaning liquid is often used for cleaning the dust collection assembly, but the cleaning efficiency of the existing nozzle is generally not high.
Disclosure of Invention
Aiming at the defects of the range hood in the prior art, the invention aims to provide the range hood, and aims to solve the problems that the dust collection component of the existing range hood is manually disassembled, so that time and labor are wasted, and the efficiency is low, and the cleaning efficiency is low when the dust collection component is cleaned by adopting the existing nozzle.
The invention is realized in such a way that a range hood comprises a range hood body and a smoke collecting hood, wherein the lower part of the smoke collecting hood is provided with a smoke inlet, the smoke inlet is provided with an oil filtering device, an oil collecting box is fixed below the oil filtering device, an electrostatic device is arranged in the range hood body, a centrifugal fan is arranged above the electrostatic device, the centrifugal fan is provided with an air outlet, the air outlet of the centrifugal fan is connected with a smoke pipeline, a purifying assembly is arranged on the smoke pipeline, the purifying assembly is provided with a smoke inlet and a smoke outlet, the smoke inlet of the purifying assembly is connected with the smoke pipeline, and the smoke outlet of the purifying assembly is connected with a smoke exhaust pipeline.
Optionally, the purification assembly comprises a shell, the oil smoke pipeline penetrates through the shell of the purification assembly and extends into the shell, a partition plate is arranged inside the shell, a plurality of smoke passing holes are formed in the partition plate, a support is fixed on the partition plate, a motor is fixed on the support, two connecting rods and two connecting rods are symmetrically connected to the rotation axis of the motor, the filter assembly comprises a filter ring, a filter screen, a buffer spring and a connecting ring, the filter screen is arranged in the filter ring, the upper surface of the filter ring is connected with the lower surface of the connecting ring through the buffer spring, the connecting rods are connected to the side surface of the connecting ring, two first cylinders are fixed to one side of the partition plate close to the connecting ring, the two first cylinders are connected with the upper surface of the compression ring through first telescopic rods, and the compression ring, The oil smoke pipeline is concentric from top to bottom in proper order, the clamp ring, the connecting ring, the filter ring all run through and are provided with the centre bore, the centre bore diameter of clamp ring the centre bore diameter of filter ring with the internal diameter of oil smoke pipeline is the same, the centre bore diameter of connecting ring slightly is greater than the external diameter of clamp ring is in order to allow the clamp ring to pass through the connecting ring.
Optionally, the filter assembly further comprises a sealing ring fixed to the lower surface of the filter ring.
Optionally, a cleaning nozzle for cleaning the filter screen is further arranged inside the casing of the purification assembly, the cleaning nozzle comprises a water inlet pipe, a rotary end cover, a spray pipe fixing part and a spray pipe, a perforation is formed at the center position of the top wall of the rotary end cover, one end of the water inlet pipe penetrates through the perforation and extends into the rotary end cover, a flange is formed by extending the end of the water inlet pipe extending into the rotary end cover outwards, a sealing gasket is arranged between the flange and the inner surface of the top wall of the rotary end cover, the spray pipe comprises three horizontal spray pipes and a vertical spray pipe, the three horizontal spray pipes are fixed on the side wall of the spray pipe fixing part in a centrosymmetric manner, the vertical spray pipe is fixed on the bottom wall of the spray pipe fixing part, the rotary end cover is sleeved outside the spray pipe fixing part in a threaded manner, and the flow passages of the water inlet pipe, the spray pipe fixing part, the horizontal spray pipe and the vertical spray pipe are communicated with each other, the horizontal spray pipe comprises a first pipe section, a transition pipe section and a second pipe section, the first pipe section is connected with the second pipe section through the transition pipe section, an included angle between the first pipe section and the second pipe section is 120 degrees, the end part of the first pipe section is arranged in an open mode, and when cleaning liquid is sprayed out from the open end of the end part of the first pipe section, the horizontal spray pipe, the vertical spray pipe, the spray pipe fixing part and the rotary end cover can be driven to rotate together around the water inlet pipe.
Optionally, a plurality of elastic pieces are arranged at the opening of the end part of the first pipe section of the horizontal pipe section, and when the cleaning liquid is sprayed, the elastic pieces are impacted to form water mist.
Optionally, a bottom plate is arranged at the bottom of the vertical spray pipe, a plurality of first spray holes are formed in the bottom plate, three circular arc-shaped second spray holes are formed in the side wall of the vertical spray pipe, the three second spray holes are evenly distributed along the circumferential direction of the side wall of the vertical spray pipe, the three second spray holes are all arranged in an inclined downward manner, the inclination angle between one second spray hole and the horizontal plane is 30 degrees, the inclination angle between the other second spray hole and the horizontal plane is 45 degrees, and the inclination angle between the last second spray hole and the horizontal plane is 60 degrees.
It is optional, it still is provided with the washing case to purify the inside washing case that passes through the bellows connection of subassembly, it washs the shower nozzle to wash the case, the roof of wasing the case is provided with the recess that holds the second cylinder, the second cylinder is connected with the second telescopic link, the second telescopic link passes the inside fixed connection washing shower nozzle of telescopic link, it still is provided with the sealed cowling to wash the shower nozzle, the sealed cowling is worn to establish to be fixed wash on the outer wall of the inlet tube of shower nozzle, be provided with the baffle under the sealed cowling, the baffle is fixed on the inner wall of casing, the external diameter of sealed cowling slightly is less than the centre bore diameter of clamping ring is in order to allow the sealed cowling passes through the clamping ring.
Optionally, a cross is fixed inside the water inlet pipe, and one end of the second telescopic rod is fixed at the center of the cross.
The invention also provides a control method of the range hood, which comprises the following steps:
1) the range hood starts to work, the oil smoke passes through the oil filter device, the electrostatic device and the purification assembly in sequence, and the purified oil smoke is discharged from the smoke exhaust pipeline;
2) when a filter screen in the purification assembly needs to be replaced and cleaned, the first cylinder is controlled to contract the first telescopic rod, the first telescopic rod contracts to drive the pressing ring to be separated from the filter ring and move to one side of the connecting ring, and then the pressing ring is withdrawn from the connecting ring, and the buffer spring contracts to drive the sealing ring below the filter ring to be separated from the end part of the oil smoke pipeline; meanwhile, a second cylinder is controlled to contract a second telescopic rod, the second telescopic rod contracts to drive the sealing cover to be separated from the filtering ring and move to one side of the connecting ring, so that the sealing cover is withdrawn from the connecting ring, and the buffer spring contracts to drive the filtering ring to leave the baffle; then, the motor is controlled to rotate to drive the two filtering assemblies to rotate by 180 degrees, and the used filtering assemblies and the new filtering assemblies are replaced.
3) After the filter assembly is replaced, the first cylinder is controlled to extend out of the first telescopic rod, the first telescopic rod extends out of the connecting ring and abuts against the filter ring, the compression ring penetrates through the new filter assembly, the filter ring is driven to move towards the end of the oil smoke pipeline, the sealing ring below the filter ring abuts against the end of the oil smoke pipeline, sealing is achieved, and the new filter assembly plays a role in filtering.
In step 3), when the used filtering component needs to be cleaned, the second cylinder is controlled to drive the second telescopic rod to extend downwards, so that the sealing cover is driven to abut against the filtering ring of the used filtering component until the sealing ring below the filtering ring contacts with the baffle plate, the sealing cover, the filtering ring and the baffle plate form a sealing cavity, at the moment, the cleaning spray head is started to start cleaning the filtering net, and after the cleaning is finished, the sealing state of the sealing cavity is kept to prevent the oil fume in the shell of the purifying component from polluting the cleaned filtering net.
Compared with the prior art, the invention has the following beneficial effects:
(1) when the filtering component greasy dirt covers too much and needs to be cleaned, only the starting motor needs to replace the used filtering component and the new filtering component, and then the used filtering component is cleaned by the cleaning spray head and is reserved for next replacement. Therefore, the filtering component does not need to be manually disassembled and cleaned, and the problems that the time and labor are wasted and the efficiency is low due to the fact that the filtering component of the existing range hood is manually disassembled are solved.
(2) The spray pipe that washs the shower nozzle includes three horizontal spray pipe and a vertical spray pipe, has realized the rotation that washs the shower nozzle through the injection reaction force of three horizontal spray pipe, and striking shell fragment forms the water smoke when the shell fragment of the uncovered department of horizontal spray pipe makes the washing liquid spray, has improved the cleaning efficiency. The side wall of the vertical spray pipe is provided with three arc-shaped second spray holes, and the three arc-shaped second spray holes are set to different inclination angles, so that the filter screen can be completely cleaned within different outer diameter ranges. Meanwhile, the sealing cover is arranged on the cleaning spray head, when cleaning is conducted, the sealing cover, the filtering ring and the baffle form a sealing cavity, the sealing cover covers the water mist mixture in the sealing cavity, sealing cleaning of the filter screen is achieved, cleaning efficiency is greatly improved, and the problem that cleaning efficiency is not high when the existing spray nozzle is used for cleaning the filtering assembly is solved. Meanwhile, the formed sealing cavity can effectively prevent the oil smoke in the purifying component shell from polluting the cleaned filter screen.
Drawings
FIG. 1 is a schematic structural view of a range hood of the present invention;
FIG. 2 is a schematic structural view of a range hood purification assembly of the present invention;
FIG. 3 is a top view of the filter assembly, linkage and motor connection of the present invention;
FIG. 4 is a schematic view of the filter assembly and clamp ring of the present invention;
FIG. 5 is a schematic view showing the connection between the cleaning nozzle and the sealing cap according to the present invention;
FIG. 6 is a schematic view of the cleaning head according to the present invention;
FIG. 7 is a schematic view of the vertical nozzle arrangement of the cleaning head of the present invention;
FIG. 8 is a schematic diagram showing the positional relationship among the cleaning nozzle, the sealing cap and the connecting ring when the range hood of the present invention is in a cleaning state;
fig. 9 is a view in the direction of a-a in fig. 8 of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The following describes the implementation of the present invention in detail with reference to specific embodiments.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.
Referring to fig. 1 to 9, a preferred embodiment of the present invention is shown.
Referring to the attached drawing 1, the embodiment provides a range hood, including range hood body 1, collection petticoat pipe 2 lower part is provided with the oil smoke entry, the oil smoke entry is provided with oil filter 3, be fixed with collection oil box 8 below the oil filter 3, be provided with electrostatic device 4 in the range hood body 1, electrostatic device 4's top is provided with centrifugal fan 5, centrifugal fan 5 has air outlet 6, oil smoke pipeline 7 is connected to centrifugal fan 5's air outlet 6, be provided with purification subassembly 9 on the oil smoke pipeline 7, purification subassembly 9 has smoke inlet and exhaust port, the smoke inlet of purification subassembly 9 with oil smoke pipeline 7 connects, the exhaust port of purification subassembly 9 is connected with smoke exhaust pipe 10.
In this embodiment, by sequentially arranging the oil filtering device 3, the electrostatic device 4 and the purifying assembly 9 in the flowing direction of the oil smoke, oil stains and other pollutants in the oil smoke can be sufficiently purified. After the oil filter device 3 preliminarily filters the oil stain, oil smoke particles are further adsorbed under the electrostatic adsorption of the electrostatic device 4, and finally, the residual oil smoke particles and other pollutants are removed through the purification assembly 9.
Referring to fig. 2-4, the purifying assembly 9 includes a housing 11, the oil smoke pipe 7 passes through the housing 11 of the purifying assembly 9 and extends into the housing 11, a partition plate 19 is disposed inside the housing 11, a plurality of smoke passing holes are disposed on the partition plate 19, a support 15 is fixed on the partition plate 19, a motor 14 is fixed on the support 15, two connecting rods 13 are symmetrically connected to a rotating shaft of the motor 14, a filtering assembly 12 is fixedly connected to both of the two connecting rods 13, the filtering assembly 12 includes a filtering ring 122, a filtering net 123, a buffer spring 125 and a connecting ring 124, the filtering net 123 is disposed in the filtering ring 122, an upper surface of the filtering ring 122 is connected to a lower surface of the connecting ring 124 through the buffer spring 125, a side surface of the connecting ring 124 is connected to the connecting rod 13, two first cylinders 17 are fixed on one side of the partition plate 19 close to the connecting ring 124, the two first cylinders 17 are connected with the upper surface of the pressing ring 16 through the first telescopic rod 18, the pressing ring 16, the connecting ring 124, the filtering ring 122 and the oil smoke pipeline 7 are concentrically arranged from top to bottom in sequence, central holes are formed in the pressing ring 16, the connecting ring 124 and the filtering ring 122 in a penetrating mode, the diameter of the central hole of the pressing ring 16, the diameter of the central hole of the filtering ring 122 and the inner diameter of the oil smoke pipeline 7 are the same, and the diameter of the central hole of the connecting ring 124 is slightly larger than the outer diameter of the pressing ring 16 so as to allow the pressing ring 16 to pass through the connecting ring 124.
In this embodiment, when the filter assembly 12 needs to be replaced and cleaned, the first cylinder 17 is controlled to retract the first telescopic rod 18, the first telescopic rod 18 retracts to drive the pressing ring 16 to separate from the filter ring 122, and moves toward the side of the connecting ring 124, so as to exit from the connecting ring 124, and the buffer spring 125 retracts to drive the filter ring 122 to leave the end of the oil smoke pipeline 7. The control motor 14 is then rotated to rotate both filter assemblies 12 through 180, allowing for replacement between a used filter assembly 12 and a new filter assembly 12. After the replacement is completed, the first cylinder 17 is controlled to extend out of the first telescopic rod 18, the first telescopic rod 18 extends out to drive the pressing ring 16 to pass through the connecting ring 124 of the new filtering component 12 and abut against the filtering ring 122, so that the filtering ring 122 is driven to move towards the end part of the oil smoke pipeline 7, and the filtering ring 122 abuts against the end part of the oil smoke pipeline 7, so that sealing is realized, and the filtering component 12 plays a role in filtering.
Referring to fig. 4, the filter assembly 12 further includes a sealing ring 121, and the sealing ring 121 is fixed to the lower surface of the filter ring 122. By providing the seal ring 121, the degree of sealing between the seal ring 121 and the oil smoke pipe 7 can be further improved.
Referring to fig. 2 and 5-8, a cleaning nozzle 22 for cleaning the filter screen 123 is further disposed inside the housing 11 of the purification module 9, the cleaning nozzle 22 includes a water inlet pipe 221, a rotating end cover 224, a nozzle holder 225 and a nozzle tube, a through hole is formed in the center of the top wall of the rotating end cover 224, one end of the water inlet pipe 221 extends into the rotating end cover 224 through the through hole, and one end of the water inlet pipe 221 extending into the rotating end cover 224 extends outward to form a flange, a gasket is disposed between the flange and the inner surface of the top wall of the rotating end cover 224, the nozzle tube includes three horizontal nozzle tubes 222 and one vertical nozzle tube 223, the three horizontal nozzle tubes 222 are fixed on the side wall of the nozzle holder 225 in a central symmetry manner, the vertical nozzle tube 223 is fixed on the bottom wall of the nozzle holder 2225, the rotating end cover 224 is threaded onto the outside of the nozzle holder 225, and the flow passages of the water inlet pipe 221, the nozzle holder 225, the horizontal nozzle tubes 222 and the vertical nozzle tube 223 are communicated with each other, the horizontal nozzle 222 comprises a first pipe section 2221, a transition pipe section 2222 and a second pipe section 2223, the first pipe section 2221 is connected with the second pipe section 2223 through the transition pipe section 2222, the included angle between the first pipe section 2221 and the second pipe section 2223 is 120 °, the end of the first pipe section 2221 is open, and when cleaning liquid is sprayed out from the opening at the end of the first pipe section 2221, the horizontal nozzle 222, the vertical nozzle 223, the nozzle holder 225 and the rotating end cover 224 can be driven to rotate around the water inlet pipe 221.
In this embodiment, the nozzles of the cleaning nozzle 22 include three horizontal nozzles 222 and one vertical nozzle 223, the rotation of the cleaning nozzle 22 is realized by the jet reaction force of the three horizontal nozzles 222, and the cleaning efficiency of the cleaning nozzle can be improved by the rotating cleaning mode.
In addition, a plurality of elastic sheets are arranged at the opening of the end part of the first pipe section 2221 of the horizontal pipe section 222, when the cleaning liquid is sprayed, the cleaning liquid collides with the elastic sheets to form water mist, and the water mist further improves the cleaning efficiency
Referring to fig. 7 to 8, a bottom plate is disposed at the bottom of the vertical nozzle 223, a plurality of first nozzle holes 227 are formed in the bottom plate, three circular arc-shaped second nozzle holes 226 are disposed on the sidewall of the vertical nozzle 223, the three second nozzle holes 226 are uniformly distributed along the sidewall of the vertical nozzle 223 in the circumferential direction, the three second nozzle holes 226 are all arranged in an inclined downward manner, an inclination angle between one second nozzle hole 226 and the horizontal plane is 30 °, an inclination angle between the other second nozzle hole 226 and the horizontal plane is 45 °, and an inclination angle between the last second nozzle hole 226 and the horizontal plane is 60 °.
In this embodiment, the three circular arc-shaped second nozzle holes 223 are formed in the side wall of the vertical nozzle 223, and are arranged obliquely downward, and the inclination angles of the three second nozzle holes and the horizontal plane are respectively 30 °, 45 ° and 60 °, wherein the second nozzle hole with the inclination angle of 30 ° covers the cleaning area at the farthest end of the filter screen 123, the second nozzle hole with the inclination angle of 45 ° covers the cleaning area at the middle of the filter screen 123, and the second nozzle hole with the inclination angle of 60 ° covers the cleaning area near the center point of the filter screen 123, so that the whole cleaning of the areas where the filter screen 123 is located in different outer diameter ranges is realized.
Referring to fig. 2, a cleaning tank 20 is further disposed inside the casing 11 of the purification assembly 9, the cleaning tank 20 is connected to a cleaning nozzle 22 through an extensible hose 25, a groove for accommodating a second cylinder 23 is disposed on a top wall of the cleaning tank 20, the second cylinder 23 is connected to a second extensible hose 24, the second extensible hose 24 penetrates through the cleaning nozzle 22 fixedly connected inside the extensible hose 25, the cleaning nozzle 22 is further provided with a sealing cover 21, the sealing cover 21 is fixedly disposed on an outer wall of a water inlet pipe 221 of the cleaning nozzle 22 in a penetrating manner, a baffle 26 is disposed right below the sealing cover 21, the baffle 26 is fixed on an inner wall of the casing 11, and an outer diameter of the sealing cover 21 is slightly smaller than a central hole diameter of the connecting ring 124 so as to allow the sealing cover 21 to pass through the connecting ring 124.
In this embodiment, the cleaning tank 20 is filled with a cleaning liquid, and the cleaning liquid enters the cleaning nozzle 22 through the flexible hose 25. By passing the second telescopic rod 24 of the second air cylinder 23 through the inner fixed connection cleaning nozzle 22 of the telescopic hose 25, when the filter screen 123 needs to be cleaned, the cleaning nozzle 22 can be driven to move downwards to be close to the filter screen 123. Meanwhile, the sealing cover 21 is arranged on the cleaning nozzle 22, and the baffle 26 is arranged right below the sealing cover 21, so that when cleaning is performed, the sealing cover 21, the filtering ring 122 and the baffle 26 form a sealing cavity, the sealing cover 21 covers the water mist mixture in the sealing cavity, the sealing cleaning of the filter screen is realized, and the cleaning efficiency is greatly improved. In addition, the sealed cavity can also effectively prevent the oil smoke in the shell 11 of the purification assembly 9 from polluting the cleaned filter screen 123.
Referring to fig. 9, a cross 228 is fixed to the inside of the water inlet pipe 221, and one end of the second telescopic rod 24 is fixed to the center of the cross 228.
The control method of the range hood comprises the following steps:
1) when the range hood starts to work, the oil smoke passes through the oil filter device 3, the electrostatic device 4 and the purification assembly 9 in sequence, and the purified oil smoke is discharged from a smoke exhaust pipeline;
2) when the filter screen in the purification assembly needs to be replaced and cleaned, the first cylinder 17 is controlled to contract the first telescopic rod 18, the first telescopic rod 18 contracts to drive the pressing ring 16 to be separated from the filter ring 122 and move towards one side of the connecting ring 124, and then the connecting ring 124 is withdrawn, the buffer spring 125 contracts to drive the sealing ring 121 below the filter ring 122 to leave the end part of the oil smoke pipeline 7; meanwhile, the second cylinder 23 is controlled to contract the second telescopic rod 24, the second telescopic rod 24 contracts to drive the sealing cover 21 to be separated from the filtering ring 122 and move towards one side of the connecting ring 124, and then the sealing cover exits from the connecting ring 124, and the buffer spring 125 contracts to drive the filtering ring 122 to leave the baffle 26; the control motor 14 is then rotated to rotate both filter assemblies 12 through 180, allowing for replacement between a used filter assembly 12 and a new filter assembly 12.
3) After the filter assembly is replaced, the first cylinder 17 is controlled to extend out of the first telescopic rod 18, the first telescopic rod 18 extends out to drive the pressing ring 16 to penetrate through the connecting ring 124 of the new filter assembly 12 and abut against the filter ring 122, so that the filter ring 122 is driven to move towards the end of the oil smoke pipeline 7, the sealing ring 121 below the filter ring 122 abuts against the end of the oil smoke pipeline 7, sealing is achieved, and the new filter assembly 12 plays a role in filtering.
In the step 3), when the used filter assembly needs to be cleaned, the second cylinder 23 is controlled to drive the second telescopic rod 24 to extend downwards, so as to drive the sealing cover 21 to abut against the filter ring 122 of the used filter assembly 12 until the sealing ring 121 below the filter ring 122 contacts with the baffle 26, the sealing cover 21, the filter ring 122 and the baffle 26 form a sealed cavity, at this time, the cleaning nozzle 22 is started to clean the filter screen 123, and after the cleaning is completed, the sealed state of the sealed cavity is maintained, so that the oil smoke in the shell 11 of the purification assembly 9 is prevented from polluting the cleaned filter screen 123.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. A range hood is characterized by comprising a range hood body (1) and a smoke collecting hood (2), the lower part of the fume collecting hood (2) is provided with an oil fume inlet which is provided with an oil filtering device (3), an oil collecting box (8) is fixed below the oil filtering device (3), an electrostatic device (4) is arranged in the range hood body, a centrifugal fan (5) is arranged above the electrostatic device (4), the centrifugal fan (5) is provided with an air outlet (6), an air outlet (6) of the centrifugal fan (5) is connected with an oil smoke pipeline (7), the oil smoke pipeline (7) is provided with a purification component (9), the purification component (9) is provided with a smoke inlet and a smoke outlet, the smoke inlet of the purification component (9) is connected with the oil smoke pipeline (7), the smoke outlet of the purification component (9) is connected with a smoke exhaust pipeline (10); the purification assembly (9) comprises a shell (11), the oil smoke pipeline (7) penetrates through the shell (11) of the purification assembly (9) and extends to the inside of the shell (11), a partition plate (19) is arranged inside the shell (11), a plurality of smoke passing holes are formed in the partition plate (19), a support (15) is fixed on the partition plate (19), a motor (14) is fixed on the support (15), two connecting rods (13) are symmetrically connected to a rotating shaft of the motor (14), the two connecting rods (13) are fixedly connected with a filtering assembly (12), the filtering assembly (12) comprises a filtering ring (122), a filtering net (123), a buffer spring (125) and a connecting ring (124), the filtering net (123) is arranged in the filtering ring (122), and the upper surface of the filtering ring (122) is connected with the lower surface of the connecting ring (124) through the buffer spring (125), the connecting rod (13) is connected to the side of connecting ring (124), one side that baffle (19) is close to connecting ring (124) is fixed with two first cylinders (17), two upper surface that compressing ring (16) is connected through first telescopic link (18) in first cylinder (17), compressing ring (16), connecting ring (124), filter ring (122), oil smoke pipeline (7) are from last to setting up concentrically in proper order down, compressing ring (16), connecting ring (124), filter ring (122) all run through and are provided with the centre bore, the centre bore diameter of compressing ring (16), the centre bore diameter of filter ring (122) and the internal diameter of oil smoke pipeline (7) are the same, the centre bore diameter of connecting ring (124) slightly is greater than the external diameter of compressing ring (16) is in order to allow compressing ring (16) to pass through connecting ring (124).
2. A range hood according to claim 1, characterized in that the filter assembly (12) further comprises a sealing ring (121), the sealing ring (121) being fixed to the lower surface of the filter ring (122).
3. A range hood as claimed in claim 2, characterized in that a cleaning nozzle (22) for cleaning the filter screen (123) is further arranged inside the housing (11) of the purification assembly (9), the cleaning nozzle (22) comprises a water inlet pipe (221), a rotary end cover (224), a nozzle fixing member (225) and a nozzle pipe, a through hole is formed in the center of the top wall of the rotary end cover (224), one end of the water inlet pipe (221) penetrates through the through hole and extends into the rotary end cover (224), a flange is formed by extending outward of the end of the water inlet pipe (221) extending into the rotary end cover (224), a sealing gasket is arranged between the flange and the inner surface of the top wall of the rotary end cover (224), the nozzle pipe comprises three horizontal nozzle pipes (222) and a vertical nozzle pipe (223), the three horizontal nozzle pipes (222) are fixed on the side wall of the nozzle fixing member (225) in a central symmetry manner, the vertical nozzle pipe (223) is fixed on the bottom wall of the nozzle fixing member (2225), rotatory end cover (224) screw sleeve connects in the outside of spray tube mounting (225), inlet tube (221), spray tube mounting (225), the runner of horizontal spray tube (222) and vertical spray tube (223) communicates each other, horizontal spray tube (222) includes first pipe segment (2221), transition pipe segment (2222) and second pipe segment (2223), first pipe segment (2221) passes through transition pipe segment (2222) and connects second pipe segment (2223), and the contained angle between first pipe segment (2221) and second pipe segment (2223) is 120, first pipe segment (2221) tip is uncovered and sets up, from the washing liquid can drive horizontal spray tube (222) when uncovered blowout of first pipe segment (2221) tip, vertical spray tube (223), spray tube mounting (225) and rotatory end cover (224) are rotatory around inlet tube (221) together.
4. A range hood according to claim 3, characterized in that at the opening at the end of the first pipe section (2221) of the horizontal pipe section (222) there are provided a number of spring blades against which the washing liquid hits when sprayed, forming a mist.
5. The range hood according to claim 4, wherein a bottom plate is arranged at the bottom of the vertical spray pipe (223), a plurality of first spray holes (227) are formed in the bottom plate, three circular arc-shaped second spray holes (226) are formed in the side wall of the vertical spray pipe (223), the three second spray holes (226) are evenly distributed along the circumferential direction of the side wall of the vertical spray pipe (223), the three second spray holes (226) are all arranged obliquely downwards, the inclination angle between one second spray hole (226) and the horizontal plane is 30 degrees, the inclination angle between the other second spray hole (226) and the horizontal plane is 45 degrees, and the inclination angle between the last second spray hole (226) and the horizontal plane is 60 degrees.
6. A range hood as claimed in claim 5, wherein a cleaning tank (20) is further arranged inside the housing (11) of the purification assembly (9), the cleaning tank (20) is connected with a cleaning nozzle (22) through a telescopic hose (25), a groove for accommodating a second cylinder (23) is arranged on the top wall of the cleaning tank (20), the second cylinder (23) is connected with a second telescopic rod (24), the second telescopic rod (24) penetrates through the telescopic hose (25) and is fixedly connected with the cleaning nozzle (22), the cleaning nozzle (22) is further provided with a sealing cover (21), the sealing cover (21) is fixedly arranged on the outer wall of a water inlet pipe (221) of the cleaning nozzle (22), a baffle plate (26) is arranged under the sealing cover (21), and the baffle plate (26) is fixed on the inner wall of the housing (11), the outer diameter of the sealing cover (21) is slightly smaller than the diameter of the central hole of the connecting ring (124) so as to allow the sealing cover (21) to pass through the connecting ring (124).
7. A range hood as claimed in claim 6, characterized in that a cross (228) is fixed inside the water inlet pipe (221), and one end of the second telescopic rod (24) is fixed at the center of the cross (228).
8. A control method of a range hood according to claim 7, characterized by comprising the steps of:
1) the range hood starts to work, the oil smoke is purified by the oil filter device (3), the electrostatic device (4) and the purification assembly (9) in sequence, and the purified oil smoke is discharged from a smoke discharge pipeline;
2) when a filter screen in the purification assembly needs to be replaced, the first cylinder (17) is controlled to contract the first telescopic rod (18), the first telescopic rod (18) contracts to drive the pressing ring (16) to be separated from the filter ring (122) and move to one side of the connecting ring (124) so as to exit the connecting ring (124), and the buffer spring (125) contracts to drive the sealing ring (121) below the filter ring (122) to leave the end part of the oil smoke pipeline (7); meanwhile, a second air cylinder (23) is controlled to contract a second telescopic rod (24), the second telescopic rod (24) contracts to drive the sealing cover (21) to be separated from the filtering ring (122) and move to one side of the connecting ring (124) so as to withdraw from the connecting ring (124), and the buffer spring (125) contracts to drive the filtering ring (122) to leave the baffle (26); then, the motor (14) is controlled to rotate to drive the two filtering assemblies (12) to rotate 180 degrees, so that the used filtering assemblies (12) and the new filtering assemblies (12) are replaced;
3) after the filter assembly is replaced, the first cylinder (17) is controlled to extend out of the first telescopic rod (18), the first telescopic rod (18) extends out of the connecting ring (124) which drives the pressing ring (16) to penetrate through the new filter assembly (12) and abuts against the filter ring (122), then the filter ring (122) is driven to move towards the end of the oil smoke pipeline (7), the sealing ring (121) below the filter ring (122) abuts against the end of the oil smoke pipeline (7), sealing is achieved, and the new filter assembly (12) plays a role in filtering.
9. The control method according to claim 8, wherein in the step 3), when the used filter assembly needs to be cleaned, the second cylinder (23) is controlled to drive the second telescopic rod (24) to extend downwards, so as to drive the sealing cover (121) to abut against the filter ring (122) of the used filter assembly (12), until the sealing ring (121) below the filter ring (122) contacts with the baffle (26), the sealing cover (121), the filter ring (122) and the baffle (26) form a sealed cavity, at this time, the cleaning nozzle (22) is started to clean the filter screen (123), and after the cleaning is completed, the sealed state of the sealed cavity is maintained, so as to prevent oil smoke in the housing (11) of the purification assembly (9) from polluting the cleaned filter screen (123).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011392070.8A CN112393302B (en) | 2020-12-04 | 2020-12-04 | Range hood and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011392070.8A CN112393302B (en) | 2020-12-04 | 2020-12-04 | Range hood and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112393302A CN112393302A (en) | 2021-02-23 |
| CN112393302B true CN112393302B (en) | 2022-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011392070.8A Active CN112393302B (en) | 2020-12-04 | 2020-12-04 | Range hood and control method thereof |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115444334B (en) * | 2022-09-28 | 2023-07-07 | 苏州爱普电器有限公司 | Dirty liquid recovery device for wet surface cleaning equipment |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104373977A (en) * | 2013-08-16 | 2015-02-25 | 珠海格力电器股份有限公司 | Smoke ventilator |
| CN206959043U (en) * | 2017-04-27 | 2018-02-02 | 深圳市杏辉厨具有限公司 | Oil smoke cover |
| US10488056B2 (en) * | 2017-06-01 | 2019-11-26 | Illinois Tool Works Inc. | Cooking exhaust hood ventilation system |
| CN207035269U (en) * | 2017-07-31 | 2018-02-23 | 牛天才 | A kind of domestic cooking fume remover with purification function |
| CN207334851U (en) * | 2017-09-19 | 2018-05-08 | 长兴宏兴环保设备有限公司 | A kind of environmental protection equipment for kitchen |
| CN111151091B (en) * | 2020-01-06 | 2020-12-29 | 杭州兴洋环保科技有限公司 | Combined type industrial oil smoke clarifier and oil smoke clean system |
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