CN110360632B

CN110360632B - Fume exhaust fan

Info

Publication number: CN110360632B
Application number: CN201910691728.6A
Authority: CN
Inventors: 黄鹏; 袁柯铭
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2019-07-29
Filing date: 2019-07-29
Publication date: 2021-01-15
Anticipated expiration: 2039-07-29
Also published as: CN110360632A

Abstract

The invention discloses a range hood, which comprises a smoke collecting cover and a smoke collecting assembly, wherein an air inlet is formed in the smoke collecting cover, the smoke collecting assembly comprises a smoke collecting plate positioned below the air inlet, the smoke collecting plate is movably arranged on the smoke collecting cover, so that the smoke collecting plate can be positioned at a closing position for closing the air inlet and at least at an opening position for opening part of the air inlet, and the range hood is characterized in that: the cigarette collecting assembly further comprises an oil scraping assembly capable of scraping oil stains on the upper surface of the cigarette collecting plate in the moving process of the cigarette collecting plate, and an oil cup assembly used for receiving the oil stains is arranged at the outer end of the cigarette collecting plate. Through set up the frizing subassembly that can strike off the greasy dirt that accumulates on each collection cigarette board upper surface on collection cigarette cover, can be when enlarging and hold together the cigarette scope, improve the oil absorption cigarette effect, avoid collection cigarette board upper surface to influence normal effect because of long-term use accumulation greasy dirt to reduce cleaning frequency, increase of service life.

Description

Fume exhaust fan

Technical Field

The invention relates to an oil fume purification device, in particular to a range hood.

Background

Chinese cooking can produce a large amount of oil smoke, and in order to keep the kitchen environment clean and the health of human body, the range hood has become one of the indispensable equipment in modern family kitchen. Generally, the range hood comprises a top suction type range hood and a side suction type range hood, and the top suction type range hood has more and more extensive application due to the advantages of neatness, lightness, small occupied space and the like.

The top-suction type range hood generally includes a fume collecting hood, a fan housing located on the fume collecting hood, and a volute, an impeller, and a motor for driving the impeller are installed in the fan housing. The oil smoke generated in the cooking process is collected in the smoke collecting hood and is exhausted out of the room through the air inlet communicated with the smoke collecting hood and the air duct.

Common cooking utensils are usually provided with two kitchen ranges on the left and right sides, and the collection petticoat pipe just extends from the air intake and covers to the kitchen range top always, and in the culinary art in-process, the oil smoke can be fried usually, rise, the diffusion, the oil smoke of diffusion escapes from the left and right sides of collection petticoat pipe very easily, for guaranteeing the smoking effect, reduce the oil smoke and escape, its conventional way is exactly to upgrading the improvement to the fan system of range hood, for example, the power of increase fan, thereby promote the amount of wind and follow up with wind speed, or design wide enough collection petticoat pipe size in order to draw in the oil smoke and prevent its diffusion, but the waste of energy consumption has been increaseed in the time of increase fan power, and increase collection petticoat pipe size.

For this reason, a range hood disclosed in chinese patent application No. 201420568450.6 is known, which includes a housing and a smoke guide plate, wherein the housing includes an air inlet, the smoke guide plate is slidably disposed on the housing, and the smoke guide plate has a closed position and an open position; when the smoke guide plate is in the opening position, at least part of the air inlet is exposed, the smoke guide plate is provided with and/or is separated from the first opening, and when the smoke guide plate is in the closing position, at least part of the air inlet is exposed out of the first opening. However, since such a smoke guide plate has a curved portion curved toward the direction of gravity on the outer sides away from each other, oil droplets on the upper surface easily drop from the outer edge of the curved portion during operation, causing contamination; in addition, after long-term use, the oil stains accumulated on the upper surface of the smoke guide plate are difficult to clean, and the normal use is influenced.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a range hood which can conveniently collect oil drops and clear accumulated oil stains so as to avoid pollution and ensure normal work aiming at the defects of the prior art.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a range hood, includes the collection petticoat pipe and gathers the cigarette subassembly, the air intake has been seted up on the collection petticoat pipe, gather the cigarette subassembly including the collection cigarette board that is located the air intake below, the collection cigarette board can set up on collection petticoat pipe with removing, makes collection cigarette board can be in the closed position of closing the air intake and the open position of opening partial air intake at least, its characterized in that: the cigarette collecting assembly further comprises an oil scraping assembly capable of scraping oil stains on the upper surface of the cigarette collecting plate in the moving process of the cigarette collecting plate, and an oil cup assembly used for receiving the oil stains is arranged at the outer end of the cigarette collecting plate.

For enlarging the range of gathering the cigarette better, improve the oil absorption cigarette effect, the smoke trap includes first smoke trap and second smoke trap, set up side by side about first smoke trap and second smoke trap, the oil cup subassembly is including setting up the first oil cup of the outside end below of keeping away from the second smoke trap at first smoke trap, setting up the second oil cup of the outside end below of keeping away from first smoke trap at the second smoke trap, first oil cup and second oil cup all extend on the front and back direction.

According to one aspect of the invention, the oil scraping assembly comprises a first oil scraping strip, a second oil scraping strip, a third oil scraping strip and a fourth oil scraping strip which extend in the front-rear direction respectively, the first oil scraping strip and the second oil scraping strip are arranged on the inner side of a side plate on the left side of the smoke collecting hood at intervals in the front-rear direction, the upper surface of the first smoke collecting plate is in contact with the bottom surfaces of the first oil scraping strip and the second oil scraping strip, and a first oil leaking hole is formed in the bottom of the side plate on the left side of the smoke collecting hood at a position between the first oil scraping strip and the second oil scraping strip; the third scrapes the deep-fried twisted dough sticks and the fourth scrapes the deep-fried twisted dough sticks around the curb plate inboard that sets up on collection petticoat pipe right side with the interval, the upper surface of second collection cigarette board and the bottom surface contact of the deep-fried twisted dough sticks, fourth scraper, the curb plate bottom on collection petticoat pipe right side, be located the third and scrape the position between the deep-fried twisted dough sticks and the fourth scraper and seted up the second oil leak hole.

According to another aspect of the invention, after the smoke collecting cover moves, the oil scraping assembly moves again, the oil scraping assembly comprises a first oil scraping block, a second oil scraping block, a third oil scraping block and a fourth oil scraping block, the first oil scraping block and the second oil scraping block can move back and forth in opposite directions, the upper surface of the first smoke collecting cover is in contact with the bottom surfaces of the first oil scraping block and the second oil scraping block, and a first oil leakage hole is formed in the position, located between the first oil scraping block and the second oil scraping block, of the bottom of the side plate on the left side of the smoke collecting cover; the third oil scraping block and the fourth oil scraping block can move back and forth in opposite directions, and the upper surface of the second smoke collecting plate is in contact with the bottom surfaces of the third oil scraping block and the fourth oil scraping block; and a second oil leakage hole is formed in the position, on the right side of the smoke collecting hood, between the third oil scraping block and the fourth oil scraping block at the bottom of the side plate.

According to another aspect of the invention, the smoke collecting plate and the oil scraping assembly act synchronously, the oil scraping assembly further comprises a first movable oil scraping strip, a second movable oil scraping strip, a third movable oil scraping strip and a fourth movable oil scraping strip which extend in the left-right direction respectively, the first movable oil scraping strip and the second movable oil scraping strip can move back and forth in opposite directions, and the upper surface of the first smoke collecting plate is in contact with the bottom surfaces of the first movable oil scraping strip and the second movable oil scraping strip; the third movable oil scraping strip and the fourth movable oil scraping strip can move back and forth in opposite directions, and the upper surface of the second smoke collecting plate is in contact with the bottom surfaces of the third movable oil scraping strip and the fourth movable oil scraping strip.

Further, scrape the action of oil collecting plate after the subassembly moves again, be convenient for strike off middle greasy dirt simultaneously, the medial extremity of the upper surface of first collection cigarette board is provided with first fixed the piece of lubricating oil of scraping, is used for scraping the cooperation of deep-fried twisted dough sticks, second activity with first activity, the medial extremity of the upper surface of second collection cigarette board is provided with the second and fixes the piece of lubricating oil of scraping, is used for scraping the cooperation of deep-fried twisted dough sticks and fourth activity with the third activity.

For closing the air intake better, prevent that the oil smoke from flowing backward, the medial extremity that first smoke collecting plate is close to second smoke collecting plate is provided with first sealing strip, the medial extremity that second smoke collecting plate is close to first smoke collecting plate is provided with the second sealing strip, first sealing strip and second sealing strip all extend in the front and back direction, and when smoke collecting plate was in closed position, first sealing strip and second sealing strip compressed tightly mutually.

In order to guide the oil stains on the smoke collecting plates to flow downwards to the oil cup, the first smoke collecting plate gradually inclines downwards from the inner side end to the outer side end, and the second smoke collecting plate gradually inclines downwards from the inner side end to the outer side end.

Preferably, hold together cigarette subassembly still includes the motion, the motion includes the first rack that sets up on first collection cigarette board upper surface, is used for driving first rack and moves about first motor, set up on second collection cigarette board upper surface second rack, is used for driving the second motor that the second rack moved about, first rack and second rack extend in the left and right directions respectively, the position, the shape and the size of first oil leak hole correspond with first rack, the position, the shape and the size of second oil leak hole correspond with the second rack.

In order to guide the oil dirt scraped to the middle to flow to the oil cup, each rack is sunken to form an oil guide groove in the middle in the front side and the rear side respectively at the joint of the rack and the corresponding smoke collecting plate, and each oil guide groove extends in the left-right direction.

In order to facilitate scraping of oil stains remained in the racks, one side of each of the first oil scraping block, the second oil scraping block, the third oil scraping block and the fourth oil scraping block, which faces the corresponding rack, is provided with a first insertion part protruding towards the corresponding rack, and the height of the first insertion part is smaller than that of the oil guide groove; or the first movable oil scraping strip, the second movable oil scraping strip, the third movable oil scraping strip and the fourth movable oil scraping strip are respectively provided with a second inserting part protruding towards the corresponding rack towards one side of the corresponding rack, and the height of the second inserting part is smaller than that of the oil guide groove.

Compared with the prior art, the invention has the advantages that: through set up the frizing subassembly that can strike off the greasy dirt that accumulates on each collection cigarette board upper surface on collection cigarette cover, can be when enlarging and hold together the cigarette scope, improve the oil absorption cigarette effect, avoid collection cigarette board upper surface to influence normal effect because of long-term use accumulation greasy dirt to reduce cleaning frequency, increase of service life.

Drawings

Fig. 1 is a schematic view of a range hood according to a first embodiment of the present invention in a closed state;

FIG. 2 is a schematic view of a range hood according to a first embodiment of the present invention in a closed state (from bottom to top)

Fig. 3 is a longitudinal sectional view of a closed state of the range hood according to the first embodiment of the present invention;

FIG. 4 is an enlarged view of a portion I of FIG. 3;

fig. 5 is an exploded structural schematic view of a smoke collecting hood and a smoke collecting assembly of the range hood of the first embodiment of the invention;

fig. 6 is a schematic view of a smoke collecting plate of the range hood according to the first embodiment of the present invention;

fig. 7 is a schematic view of a sealing strip of a range hood according to a first embodiment of the present invention;

fig. 8 is a schematic view of an oil cup of the range hood according to the first embodiment of the present invention;

fig. 9 is a transverse cross-sectional view of a range hood in accordance with a first embodiment of the present invention;

FIG. 10 is an enlarged view of portion II of FIG. 9;

fig. 11 is a sectional view of the range hood of the first embodiment of the present invention showing a side opened of the smoke collection assembly;

fig. 12 is a schematic view of a side open state of a smoke collection assembly of the range hood according to the first embodiment of the present invention;

fig. 13 is a cross-sectional view of the range hood of the first embodiment of the present invention in a fully opened state of the smoke collection assembly;

fig. 14 is a schematic view of the range hood according to the first embodiment of the present invention showing a fully opened state of the smoke collection assembly;

fig. 15 is a schematic view of an intermediate state of a smoke collection assembly of the range hood according to the first embodiment of the present invention;

fig. 16 is a schematic view of a smoke collection assembly of a range hood according to a second embodiment of the present invention;

fig. 17 is a sectional view of a smoke collection assembly of a range hood according to a second embodiment of the present invention in a closed state;

fig. 18 is a sectional view of a second embodiment of the range hood of the present invention in an intermediate opened state of the smoke collecting assembly;

fig. 19 is a sectional view of a second embodiment of the range hood of the present invention showing a fully opened smoke collection assembly;

fig. 20 is a sectional view of a middle state of a scraper assembly of a range hood according to a second embodiment of the present invention;

fig. 21 is a sectional view of a range hood according to a second embodiment of the present invention, illustrating a state in which a scraper assembly moves to the middle;

fig. 22 is a sectional view of a range hood according to a second embodiment of the present invention in a state where a smoke collection assembly is closed;

fig. 23 is a schematic view of an oil scraping block of a smoke collection assembly of a range hood according to a second embodiment of the present invention;

fig. 24 is a schematic view of a smoke collection assembly of a range hood according to a third embodiment of the present invention in a closed state;

fig. 25 is a schematic view of the range hood according to the third embodiment of the present invention showing the opened state of the smoke collecting assembly;

fig. 26 is a schematic view of a smoke collection assembly of a range hood according to a fourth embodiment of the present invention in a closed state;

fig. 27 is a schematic view of a fourth embodiment of a range hood of the present invention, wherein a scraper of a smoke collection assembly moves to an intermediate state;

fig. 28 is a schematic view illustrating a smoke collection plate of a smoke collection assembly of a range hood according to a fourth embodiment of the present invention is fully opened.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

Example one

Referring to fig. 1, 2 and 5, a range hood is a top-suction range hood, and includes a fume collecting hood 1, a box body 2 disposed above the fume collecting hood 1, a fan 3 disposed in the box body 2, and a fume collecting assembly. For convenience of description, in this specification, "front", "rear", "left", "right", "up" and "down" refer to directions of the extractor hood relative to a user when in use.

The fume collecting hood 1 comprises a top plate 11 extending transversely, and a side plate 12 located at the periphery of the top plate 11 and extending downwards in the longitudinal direction, so that an upwards-concave fume collecting cavity 13 is formed in the fume collecting hood 1, and an air inlet 14 is formed in the top plate 11, so that the fume collecting cavity 13 is communicated with the interior of the box body 2. In the present embodiment, the side plates 12 are four and enclose a substantially rectangular shape.

The smoke collecting assembly comprises a first smoke collecting plate 41, a second smoke collecting plate 42, a moving mechanism assembly, an oil scraping assembly, an oil cup assembly and a sealing assembly. The first smoke collecting plate 41 and the second smoke collecting plate 42 are arranged left and right, and when the range hood is closed, the first smoke collecting plate 41 and the second smoke collecting plate 42 are integrally matched with the smoke collecting cavity 13 in shape and size and simultaneously seal the air inlet 14.

The first smoke collecting plate 41 is positioned at the left side and gradually inclines downwards from right to left, the outer end part (left end part) of the first smoke collecting plate 41 is positioned below the bottom surface of the side plate 12 at the left side of the smoke collecting cover 1, and the oil cup assembly comprises a first oil cup 451 arranged below the outer end part of the first smoke collecting plate 41, so that grease on the first smoke collecting plate 41 can be collected into the first oil cup 451. The second smoke collecting plate 42 is located at the right side and gradually inclines downwards from left to right, the outer end (right end) of the second smoke collecting plate 42 is located below the bottom surface of the side plate 12 at the right side of the smoke collecting hood 1, and the oil cup assembly further comprises a second oil cup 452 below the right end of the second smoke collecting plate 42, so that the grease on the second smoke collecting plate 42 can be collected into the second oil cup 452. Both oil cups extend in the front-rear direction. Referring to fig. 5, 6 and 8, the outer end (the left end of the first smoke collecting plate 41 and the right end of the second smoke collecting plate 42) of each smoke collecting plate away from the other smoke collecting plate is bent downwards to form a first connecting part 411, the first connecting part 411 is located outside the smoke collecting hood 1, the bottom of the first connecting part 411 is provided with a hook 412, the upper end of each oil cup is open, and a hanging hole 453 is opened on one side facing the interior of the smoke collecting cavity 13, and the hook 412 and the hanging hole 453 are matched to conveniently mount and dismount the smoke collecting plates and the corresponding oil cups. Preferably, two hooks 412 spaced back and forth may be provided to stabilize the connection between the smoke trap and the corresponding oil cup and prevent the oil cup from tilting.

Referring to fig. 3, 4, 7 and 9, the inner end of each smoke collecting plate near the other smoke collecting plate (the right end of the first smoke collecting plate 41, the left end of the second smoke collecting plate 42) is bent upward to form a second connection 413, and a sealing member is provided on the second connection 413. The seal assembly includes a first seal 461 and a second seal 462 both extending in the front-rear direction, the first seal 461 being open at the bottom end and allowing the second connecting portion 413 of the first smoke collecting plate 41 to be inserted so that the first seal 461 and the first smoke collecting plate 41 are connected and fixed, and the second seal 462 being open at the bottom end and allowing the second connecting portion 413 of the second smoke collecting plate 42 to be inserted so that the second seal 462 and the second smoke collecting plate 42 are connected and fixed.

Referring to fig. 4, 5, 9, 10 and 15, the moving mechanism assembly includes a first motor 431, a first gear 432, a first rack 433 and a first slide rail 434 for actuating the first smoke trap 41, and a second motor 435, a second gear 436, a second rack 437 and a second slide rail 438 for actuating the second smoke trap 42. The first motor 431 is provided at the left side in the smoke collecting cover 1 and may be fixedly connected to the side plate 12 at the left side, the first gear 432 is provided on the output shaft of the first motor 431, and the rotational shaft of the first gear 432 extends in the front-rear direction. A first rack 433 is provided on the upper surface of the first smoke collecting plate 41 and extends in the left-right direction, and the first gear 432 is engaged with the first rack 433. Preferably, the first rack 433 is located in the middle of the first smoke collecting plate 41. The first sliding rails 434 are provided in two on the inner surfaces of the side plates 12 on the front and rear sides of the smoke collecting cover 1, respectively, each of the first sliding rails 434 extends in the left-right direction, the front and rear sides of the first smoke collecting plate 41 are inserted into the corresponding first sliding rail 434, respectively, so that the first smoke collecting plate 41 can move along the first sliding rail 434, and the first sliding rails 434 are gradually inclined downward from the middle to the left end, so that the first smoke collecting plate 41 is inclined. Similarly, the second motor 435 is provided on the right side within the smoke collecting hood 1 and may be fixedly coupled to the side plate 12 on the right side, and the second gear 436 is provided on the output shaft of the second motor 435, and the rotational shaft of the second gear 436 extends in the front-rear direction. The second rack 437 is provided on the upper surface of the second smoke collecting plate 42 and extends in the left-right direction, and the second gear 436 and the second rack 437 are engaged. Preferably, the second rack 437 is located in the middle of the second smoke trap 42. The second slide rails 438 are provided in two, which are respectively provided on the inner surfaces of the side plates 12 of the front and rear sides of the smoke collecting cover 1, each of the second slide rails 438 extends in the left-right direction, the front and rear sides of the second smoke collecting plate 42 are respectively inserted into the corresponding second slide rail 438, so that the second smoke collecting plate 42 can move along the second slide rail 438, and the second slide rail 438 is gradually inclined downward from the middle to the left end, so that the second smoke collecting plate 42 is inclined.

Therefore, when the first motor 431 operates, the first gear 432 can be driven to rotate, and due to the engagement of the first rack 433 and the first gear 432, the first smoke collecting plate 41 can move along the first slide rail 434 to the outside (left) of the smoke collecting hood 1 or to the inside (right) of the smoke collecting hood 1, and when moving, the upper surface of the first smoke collecting plate 41 is tightly attached to the bottom surface of the side plate 12 on the left side of the smoke collecting hood 1. When the second motor 435 is operated, the second gear 436 is driven to rotate, and since the second rack 437 is engaged with the second gear 436, the second smoke collecting plate 42 can move along the second slide rail 438 to the outside (right) of the smoke collecting hood 1 or to the inside (left) of the smoke collecting hood 1, and when moving, the upper surface of the second smoke collecting plate 42 is tightly attached to the bottom surface of the side plate 12 on the right side of the smoke collecting hood 1. The first smoke collecting plate 41 and the second smoke collecting plate 42 are independently movable.

The first oil leakage hole 121 is opened at the bottom of the side plate 12 at the left side of the fume collecting hood 1 at a position corresponding to the first rack 433, and the shape and size of the first oil leakage hole 121 are adapted to the first rack 433 so that the first rack 433 movably passes through the first oil leakage hole 121. Similarly, the second oil leakage hole 122 is opened at the bottom of the side plate 12 at the right side of the smoke collecting hood 1 at a position corresponding to the second rack 437, and the shape and size of the second oil leakage hole 122 are matched with the second rack 437, so that the second rack 437 movably passes through the second oil leakage hole 122.

The wiper assembly includes a first wiper strip 441, a second wiper strip 442, a third wiper strip 443, and a fourth wiper strip 444 extending in the front-rear direction, respectively. The first and second oil scraping strips 441 and 442 are disposed on the inner side wall of the side plate 12 on the left side of the fume collecting hood 1, and preferably the bottom surfaces of the first and second oil scraping strips 441 and 442 are flush with the bottom surface of the side plate 12, so that the upper surface of the first fume collecting plate 41 can contact the bottom surfaces of the first and second oil scraping strips 441 and 442 when the first fume collecting plate 41 is moved. The first oil scraping strip 441 is located on the front side of the first oil leaking hole 121, the second oil scraping strip 442 is located on the rear side of the first oil leaking hole 121, the surface, away from the side plate 12, of the first oil scraping strip 441 is inclined towards the side plate 12 from front to back gradually to form a flow guide surface, the surface, away from the side plate 12, of the second oil scraping strip 442 is inclined towards the side plate 12 from back to front gradually to form a flow guide surface, so that grease scraped by the oil scraping strips can flow to the middle along the flow guide surface and be close to the first oil leaking hole 121, and the grease flows into the first oil cup 451 along the first connecting portion 412 downwards through the first oil leaking hole 121. Similarly, the third oil scraping strip 443 and the fourth oil scraping strip 444 are disposed on the inner side wall of the side plate 12 on the right side of the fume collecting hood 1, and preferably, the bottom surfaces of the third oil scraping strip 443 and the fourth oil scraping strip 444 and the bottom surface of the side plate 12 are flush, so that the upper surface of the second fume collecting plate 42 can contact the bottom surfaces of the third oil scraping strip 443 and the fourth oil scraping strip 444 when the second fume collecting plate 42 is moved. The third oil scraping strip 443 is located at the front side of the second oil leaking hole 122, the fourth oil scraping strip 444 is located at the rear side of the second oil leaking hole 122, the surface, away from the side plate 12, of the third oil scraping strip 443 gradually inclines towards the side plate 12 from front to back to form a flow guiding surface, and the surface, away from the side plate 12, of the fourth oil scraping strip 444 gradually inclines towards the side plate 12 from back to front to form a flow guiding surface, so that grease scraped by the oil scraping strips can flow to the middle along the flow guiding surface and be close to the second oil leaking hole 122 and flow into the second oil cup 452 along the first connecting portion 412 downwards through the second oil leaking hole 122.

In order to prevent the grease from remaining on the corresponding rack after the grease scraping strip scrapes the grease to the middle, each rack is recessed from front to back and from back to front at the joint with the corresponding smoke collecting plate to form oil guide grooves 445, each oil guide groove 445 extends in the left-right direction, and the grease scraped to the rack can be guided into the corresponding oil cup.

When the range hood is closed, the first smoke collecting plate 41 and the second smoke collecting plate 42 are drawn close to each other to close the air inlet 14, and the first sealing strip 461 and the second sealing strip 462 are pressed tightly to form sealing, so that smell mixing caused by smoke falling is avoided.

When cooking is performed on only one side of the cooking range, the smoke-collecting plate on the corresponding side can be driven to extend, so that the corresponding portion of the air inlet 14 is opened, see fig. 11 and 12. According to the principle of fluid continuity, Q is the flow, V is the wind speed, and S is the sectional area, it can be known that when the flow is constant, the sectional area S is reduced, and the wind speed V is accelerated, so when only one side smoke collecting plate is opened, not only the negative pressure distribution of the air inlet is deviated to the side, but also the flow speed is accelerated, and the smoke suction effect of the side is further improved.

When cooking on the kitchen range of both sides, can drive the smoke collecting plate of both sides and all outwards stretch out for air intake 14 opens completely, can see fig. 13 and fig. 14, because smoke collecting plate's slope sets up, two smoke collecting plate wholly present both sides low, the high state in the middle of, the lower surface of every smoke collecting plate plays the effect of gathering together the cigarette water conservancy diversion, can furthest expand and gather together the cigarette scope, prevents that the oil smoke from escaping.

In the moving process of the smoke collecting plates, the oil scraping strips corresponding to the smoke collecting plates can scrape and clean oil stains on the upper surfaces of the smoke collecting plates and guide the oil stains into the corresponding oil cups.

Example two

Referring to fig. 16 and 17, in the present embodiment, the difference from the first embodiment is that the oil scraping assembly includes a first oil scraping block 441 ', a second oil scraping block 442', a third oil scraping block 443 'and a fourth oil scraping block 444' instead of the four oil scraping strips. The oil scraping assembly further comprises a first lead screw 445', a second lead screw 446, a third motor 447 and a fourth motor 448. The first screw rod 445' and the second screw rod 446 are respectively adjacent to the side plates 12 of the fume collecting hood 1 on the left and right sides.

Wherein the first screw rod 445 'extends in the front-rear direction, above the first smoke collecting plate 41, the first oil scraping block 441' and the second oil scraping block 442 'are respectively screw-fitted with the first screw rod 445', and the screw threads of the first screw rod 445 'fitted with the first oil scraping block 441' and the screw threads of the first screw rod 445 'fitted with the second oil scraping block 442' are opposite in screw direction, thereby allowing the first oil scraping block 441 'and the second oil scraping block 442' to move in opposite directions. The third motor 447 is arranged at one end of the first screw rod 445 ' and is used for driving the first screw rod 445 ' to rotate, and the other end of the first screw rod 445 ' is rotatably connected with the side plate 12 at the corresponding position of the smoke collecting hood 1. The first guide rails 4411 'are further provided above the first and second oil scraping blocks 441' and 442 ', the first guide rails 4411' are provided on the lower surface of the top plate 11 of the fume collecting hood 1 and extend in the front-rear direction, and the first and second oil scraping blocks 441 'and 442' are slidably fitted with the first guide rails 4411 ', so that the first guide rails 4411' can guide the sliding of the first and second oil scraping blocks 441 'and 442'.

Similarly, the second screw rod 446 extends in the front-rear direction, above the second smoke trap 42, the third oil scraping block 443 'and the fourth oil scraping block 444' are respectively screw-engaged with the second screw rod 446, and the screw threads of the second screw rod 446 engaged with the third oil scraping block 443 'and the screw threads of the second screw rod 446 engaged with the fourth oil scraping block 444' are opposite in screw direction, thereby allowing the third oil scraping block 443 'and the fourth oil scraping block 444' to move in opposite directions. The fourth motor 448 is arranged at one end of the second screw rod 446 and is used for driving the second screw rod 446 to rotate, and the other end of the second screw rod 446 is rotatably connected with the side plate 12 at the corresponding position of the smoke collecting hood 1. A second guide rail 4431 'is further provided above the third oil scraping block 443' and the fourth oil scraping block 444 ', and the second guide rail 4431' is provided on the lower surface of the top plate 11 of the smoke collecting hood 1 and extends in the front-rear direction, and the third oil scraping block 443 'and the fourth oil scraping block 444' are slidably fitted with the second guide rail 4431 ', so that the second guide rail 4431' can guide the sliding of the third oil scraping block 443 'and the fourth oil scraping block 444'.

Referring to fig. 23, taking the first oil-scraping block 441 ' as an example, the bottom of the first oil-scraping block 441 ' has a first insertion portion 4412 ' protruding toward the first rack 433, the height of the first insertion portion 4412 ' being smaller than the height of the oil guide groove 445 of the first rack 433, whereby the first insertion portion 4412 ' can be inserted into the oil guide groove 445. The remaining wiper blocks also have first inserts 4412'.

When the range hood is closed, each oil scraping block is respectively positioned at a position close to the side plate 12 at the front side or the side plate 12 at the rear side.

When cooking is carried out on the cooking ranges on the two sides, the smoke collecting plates on the two sides can be driven to extend outwards, see fig. 18, until the air inlet 14 is completely opened, see fig. 19, and in the process, the oil scraping blocks do not act, so that oil stains on the front end and the rear end of the corresponding smoke collecting plates can be scraped. After the smoke collecting plate is moved to the right position, each oil scraping block moves towards the middle, so that the oil stain on the last section (the smoke collecting plate does not completely extend out of the smoke collecting cover 1, and therefore the last section is left to be positioned in the smoke collecting cover 1) on the smoke collecting plate is scraped towards the middle, referring to fig. 20 (only the left oil scraping assembly is shown), until each oil scraping block moves to the middle position, at the moment, the bottom of each oil scraping block is inserted into the oil guide groove of the corresponding rack, referring to fig. 21 (only the left oil scraping assembly is shown), the oil stain on the last section of each smoke collecting plate flows into the corresponding oil cup from the oil leakage hole at the intersection of the tail ends of each oil scraping block, and the oil stain on each part of the smoke collecting plate can be ensured to be scraped and.

When the range hood is closed again, the two smoke collecting plates move towards the middle in opposite directions and shrink, and the oil scraping blocks can scrape oil stains in the oil guide grooves of the corresponding racks and flow into the corresponding oil cups.

When only one smoke collecting plate acts, only the oil scraping component on the smoke collecting plate acts, but the oil scraping action is the same.

EXAMPLE III

Referring to fig. 24, in the present embodiment, the difference from the first embodiment is that the oil scraping assembly further includes a first movable oil scraping strip 441 ", a second movable oil scraping strip 442", a third movable oil scraping strip 443 ", and a fourth movable oil scraping strip 444".

The first movable oil scraping strip 441 "and the second movable oil scraping strip 442" extend in the left-right direction, respectively, and one of them is close to the side plate 12 on the front side of the smoke collecting hood 1, and the other is close to the side plate 12 on the rear side of the smoke collecting hood 1. Likewise, the third movable deep-oil scraping strip 443 "and the fourth movable deep-oil scraping strip 444" also extend in the left-right direction, respectively, and one of them is close to the side panel 12 on the front side of the smoke collecting hood 1, and the other is close to the side panel 12 on the rear side of the smoke collecting hood 1.

The oil scraping assembly further comprises a first screw rod 445 ' and a second screw rod 446, the first screw rod 445 ' extends in the front-rear direction and is located above the first fume collecting plate 41, the first screw rod 445 ' is close to the side plate 12 on the left side of the fume collecting hood 1, and two ends of the first screw rod 445 are respectively connected with the side plate 12 on the front side and the rear side of the fume collecting hood 1 in a rotating mode. The second screw rod 446 extends in the front-rear direction and is located above the second smoke collecting plate 42, the second screw rod 446 is close to the side plate 12 on the right side of the smoke collecting cover 1, and two ends of the second screw rod 446 are respectively connected with the side plate 12 on the front side and the rear side of the smoke collecting cover 1 in a rotating mode.

The oil scraping assembly further includes a first guide rod 447 ' and a second guide rod 448 ', the first guide rod 447 ' extending in the front-rear direction, being located above the first fume collecting plate 41 and away from the side plate 12 on the left side of the fume collecting hood 1, and both ends being rotatably connected to the side plates 12 on the front and rear sides of the fume collecting hood 1, respectively. A second guide rod 448 'extends in the front-rear direction and is located above the second smoke collecting plate 42, the second guide rod 448' is close to the side plate 12 on the right side of the smoke collecting hood 1, and both ends are rotatably connected with the side plates 12 on the front and rear sides of the smoke collecting hood 1, respectively.

The left ends of the first movable oil scraping strips 441 'and the second movable oil scraping strips 442' are in threaded connection with a first screw rod 445 ', and the right ends of the first movable oil scraping strips 441' and the second movable oil scraping strips 442 'are arranged on a first guide rod 447' in a sliding manner. The screw thread of the first lead screw 445 'cooperating with the first movable deep-fried dough stick 441 "and the screw thread of the first lead screw 445' cooperating with the second movable deep-fried dough stick 442" are opposite in spiral direction, thereby enabling the first movable deep-fried dough stick 441 "and the second movable deep-fried dough stick 442" to move in opposite directions. The right end parts of the third movable oil scraping strip 443 ' and the fourth movable oil scraping strip 444 ' are in threaded connection with the second screw rod 446, and the left end parts of the third movable oil scraping strip 443 ' and the fourth movable oil scraping strip 444 ' are arranged on the second guide rod 448 ' in a sliding mode. The screw thread of the second screw rod 446 matched with the third movable oil scraping strip 443 'and the screw thread of the second screw rod 446 matched with the fourth movable oil scraping strip 444' are opposite in spiral direction, so that the third movable oil scraping strip 443 'and the fourth movable oil scraping strip 444' can move in opposite directions.

The first lead screw 445 ' is provided with a third gear 4491 ' engaged with the first gear 432, whereby the first lead screw 445 ' can be driven by the first motor 431. The second screw rod 446 is provided with a fourth gear 4492' which is engaged with the second gear 436, whereby the second screw rod 446 can be driven by the second motor 435. Transmission gears 4493 ' are respectively arranged between the third gear 4491 ' and the first rack 433 on the first smoke collecting plate 41, and between the fourth gear 4492 ' and the second rack 437 on the second smoke collecting plate 42, so that the first motor 431 can drive the first rack 433, and the second motor 435 can drive the second rack 434, so as to drive the corresponding smoke collecting plate to move. The transmission gear 4493 'is rotatably connected to the ceiling plate 11 of the smoke collecting hood 1 to define the position of the transmission gear 4493'.

The bottom of each movable oil scraping bar has a second insertion portion 4413 ' protruding toward the corresponding rack on a side thereof, and the height of the second insertion portion 4413 ' is smaller than the height of the oil guide groove 445 of the corresponding rack 433, whereby the second insertion portion 4413 ' can be inserted into the oil guide groove 445.

When cooking is carried out on the cooking range on the two sides, the smoke collecting plates on the two sides can be driven to extend outwards, see fig. 25, at this time, the first oil scraping strip 441, the second oil scraping strip 442, the third oil scraping strip 443 and the fourth oil scraping strip 444 scrape oil stains on the upper surfaces of the corresponding smoke collecting plates as described in the first embodiment; while the smoke collecting plate moves, the first motor 431 drives the first screw rod 445 'to rotate, the first movable oil scraping strip 441 and the second movable oil scraping strip 442' simultaneously move towards the middle in an opposite way, the second motor 435 drives the second screw rod 446 to rotate, and the third movable oil scraping strip 443 and the fourth movable oil scraping strip 444 'simultaneously move towards the middle in an opposite way, so that the four movable oil scraping strips scrape oil stains on the upper surface of the corresponding smoke collecting plate towards the middle until the second inserting part 4413' at the bottom of each movable oil scraping strip is inserted into the oil guide groove 445 of the corresponding rack (at the moment, each smoke collecting plate also moves outwards to the maximum stroke), the oil stains are scraped by the first oil scraping strip 441, the second oil scraping strip 442, the third oil scraping strip 443 and the fourth oil scraping strip 444, and the oil stains scraped by the first movable oil scraping strip 441, the second movable oil scraping strip 442, the third movable oil scraping strip 443 'and the fourth oil scraping strip 444', respectively flows into the corresponding oil cup from the corresponding oil leakage hole.

When the range hood is closed again, the smoke collecting plate moves towards the middle and contracts, and the movable oil scraping strips can scrape oil stains in the oil guide grooves of the racks and flow into the oil cup.

Example four

Referring to fig. 26, the difference from the third embodiment is that the first lead screw 445 'and the second lead screw 446 are driven by the third motor 447 and the fourth motor 448 independently, respectively, in the same manner as the second embodiment, so that the third gear 4491', the fourth gear 4492 'and the transmission gear 4493' are not needed, the first gear 432 is still used for connecting the first rack 433, and the second gear 436 is still used for connecting the second rack 437.

The third motor 447 is arranged at one end of the first screw rod 445 ' and is used for driving the first screw rod 445 ' to rotate, and the other end of the first screw rod 445 ' is rotatably connected with the side plate 12 of the smoke collecting hood 1. The fourth motor 448 is arranged at one end of the second screw rod 446 and is used for driving the second screw rod 446 to rotate, and the other end of the second screw rod 446 is rotatably connected with the side plate 12 of the smoke collecting hood 1.

A first fixed oil scraping block 441 "'is arranged on the upper surface of the first smoke collecting plate 41 and on the right side of the first rack 433, a second fixed oil scraping block 442"' is arranged on the upper surface of the second smoke collecting plate 42 and on the left side of the second rack 437, the width of the first fixed oil scraping block 441 "'in the front-back direction is larger than that of the first rack 433, and the width of the second fixed oil scraping block 442"' in the front-back direction is larger than that of the second rack 437.

In this embodiment, the second insertion portion 4413' is not provided on each movable deep-fried dough stick.

When cooking is performed on the cooking ranges on the two sides, referring to fig. 27, the third motor 437 and the fourth motor 438 are operated first, so that the first movable oil scraping strip 441 "and the second movable oil scraping strip 442" are moved towards and towards the middle at the same time, and the third movable oil scraping strip 443 "and the fourth movable oil scraping strip 444" are moved towards and towards the middle at the same time until the first movable oil scraping strip 441 "and the second movable oil scraping strip 442" are abutted against the first fixed oil scraping block 441 "', and the third movable oil scraping strip 443" and the fourth movable oil scraping strip 444 "are abutted against the second fixed oil scraping block 442"', so that oil stains on the first smoke collecting plate 41 and the second smoke collecting plate 42 are scraped towards the middle at the first; then, the first motor 431 and the second motor 435 are operated to respectively drive the first smoke collecting plate 41 and the second smoke collecting plate 42 to move and extend to both sides, see figure 28, in the process, the first oil scraping strip 441, the second oil scraping strip 442, the third oil scraping strip 443 and the fourth oil scraping strip 444 scrape oil on the upper surface of the corresponding smoke collecting plate as described in the first embodiment, meanwhile, when the first fixed oil scraping block 441 '"and the second fixed oil scraping block 442'" move outwards along with the respective smoke collecting plate, greasy dirt in a rectangular area formed by the first fixed oil scraping block 441 'abutting against the first movable oil scraping strip 441' and the second movable oil scraping strip 442 'is scraped outwards, greasy dirt in a rectangular area formed by the second fixed oil scraping block 442' abutting against the third movable oil scraping strip 443 'and the fourth movable oil scraping strip 444' is scraped outwards, and finally the greasy dirt flows into a corresponding oil cup from a corresponding oil leakage hole.

The oil scraping assembly in the above embodiment can also be used in the case of only one smoke collecting plate.

Claims

1. The utility model provides a range hood, includes collection petticoat pipe (1) and holds together the cigarette subassembly, air intake (14) have been seted up on collection petticoat pipe (1), hold together the cigarette subassembly including the collection cigarette board that is located air intake (14) below, the collection cigarette board can set up on collection petticoat pipe (1) with moving, makes collection cigarette board can be in the closed position that closes air intake (14) and the open position of opening partial air intake (14) at least, its characterized in that: the cigarette collecting assembly further comprises an oil scraping assembly capable of scraping oil stains on the upper surface of the cigarette collecting plate in the moving process of the cigarette collecting plate, and an oil cup assembly used for receiving the oil stains is arranged at the outer end of the cigarette collecting plate.

2. The range hood of claim 1, wherein: the fume collecting plate comprises a first fume collecting plate (41) and a second fume collecting plate (42), the first fume collecting plate (41) and the second fume collecting plate (42) are arranged in parallel from left to right, the oil cup assembly comprises a first oil cup (451) arranged below the outer end portion, away from the second fume collecting plate (42), of the first fume collecting plate (41) and a second oil cup (452) arranged below the outer end portion, away from the first fume collecting plate (41), of the second fume collecting plate (42), and the first oil cup (451) and the second oil cup (452) extend in the front-back direction.

3. The range hood of claim 2, wherein: the oil scraping assembly comprises a first oil scraping strip (441), a second oil scraping strip (442), a third oil scraping strip (443) and a fourth oil scraping strip (444) which extend in the front-rear direction respectively, the first oil scraping strip (441) and the second oil scraping strip (442) are arranged on the inner side of a side plate (12) on the left side of the fume collecting hood (1) at intervals in the front-rear direction, the upper surface of the first fume collecting plate (41) is in contact with the bottom surfaces of the first oil scraping strip (441) and the second oil scraping strip (442), and a first oil leakage hole (121) is formed in the bottom of the side plate (12) on the left side of the fume collecting hood (1) and in a position between the first oil scraping strip (441) and the second oil scraping strip (442); the third is scraped oil strip (443) and fourth and is scraped oil strip (444) and set up curb plate (12) inboard on collection petticoat pipe (1) right side with the interval around, the bottom surface contact of oil strip (443), fourth scraping oil strip (444) is scraped with the third to the upper surface of second collection cigarette board (42), second oil leak hole (122) have been seted up to curb plate (12) bottom on collection petticoat pipe (1) right side, the position that is located between third scraping oil strip (443) and fourth scraping oil strip (444).

4. The range hood of claim 2, wherein: the oil scraping assembly comprises a first oil scraping block (441 '), a second oil scraping block (442'), a third oil scraping block (443 ') and a fourth oil scraping block (444'), the first oil scraping block (441 ') and the second oil scraping block (442') can move back and forth in opposite directions, the upper surface of the first fume collecting plate (41) is in contact with the bottom surfaces of the first oil scraping block (441 ') and the second oil scraping block (442'), and a first oil leakage hole (121) is formed in the position, between the first oil scraping block (441 ') and the second oil scraping block (442'), of the bottom of the side plate (12) on the left side of the fume collecting hood (1); the third oil scraping block (443 ') and the fourth oil scraping block (444') can move back and forth in opposite directions, and the upper surface of the second smoke collecting plate (42) is in contact with the bottom surfaces of the third oil scraping block (443 ') and the fourth oil scraping block (444'); and a second oil leakage hole (122) is formed in the position, located between the third oil scraping block (443 ') and the fourth oil scraping block (444'), at the bottom of the side plate (12) on the right side of the fume collecting hood (1).

5. The range hood of claim 3, wherein: the oil scraping assembly further comprises a first movable oil scraping strip (441 "), a second movable oil scraping strip (442"), a third movable oil scraping strip (443 ") and a fourth movable oil scraping strip (444") which respectively extend in the left-right direction, the first movable oil scraping strip (441 ") and the second movable oil scraping strip (442") can move back and forth in opposite directions, and the upper surface of the first smoke collecting plate (41) is in contact with the bottom surfaces of the first movable oil scraping strip (441 "), the second movable oil scraping strip (442"); the third movable oil scraping strip (443 ') and the fourth movable oil scraping strip (444') can move back and forth in opposite directions, and the upper surface of the second smoke collecting plate (42) is in contact with the bottom surfaces of the third movable oil scraping strip (443 ') and the fourth movable oil scraping strip (444').

6. The range hood of claim 5, wherein: the first fixed oil scraping block (441 ') is arranged at the inner side end of the upper surface of the first smoke collecting plate (41) and is used for being matched with the first movable oil scraping strip (441') and the second movable oil scraping strip (442 '), and the second fixed oil scraping block (442') is arranged at the inner side end of the upper surface of the second smoke collecting plate (42) and is used for being matched with the third movable oil scraping strip (443 ') and the fourth movable oil scraping strip (444').

7. The range hood according to any one of claims 2 to 6, wherein: the first smoke collecting plate (41) is provided with a first sealing strip (461) close to the end part of the inner side of the second smoke collecting plate (42), the second smoke collecting plate (42) is provided with a second sealing strip (462) close to the end part of the inner side of the first smoke collecting plate (41), the first sealing strip (461) and the second sealing strip (462) extend in the front-rear direction, and when the smoke collecting plates are in the closing position, the first sealing strip (461) and the second sealing strip (462) are mutually pressed.

8. The range hood according to any one of claims 2 to 6, wherein: the first smoke collecting plate (41) is gradually and obliquely downwards extended from the inner side end to the outer side end, and the second smoke collecting plate (42) is gradually and obliquely downwards extended from the inner side end to the outer side end.

9. The range hood of claim 4 or 5, wherein: gather cigarette subassembly still includes the motion, the motion is including setting up first rack (433) on first collection cigarette board (41) upper surface, be used for driving first rack (433) and remove first motor (431) that remove, set up second rack (437) on second collection cigarette board (42) upper surface, be used for driving second motor (435) that remove about second rack (437), first rack (433) and second rack (437) extend on left right direction respectively, the position, shape and the size of first oil leak hole (121) correspond with first rack (433), the position, the shape and the size of second oil leak hole (121) correspond with second rack (437).

10. The range hood of claim 9, wherein: each rack is respectively sunken in the middle of the front side and the back side at the connecting part with the corresponding smoke collecting plate to form an oil guide groove (445), and each oil guide groove (445) extends in the left-right direction.

11. The range hood of claim 10, wherein: the first oil scraping block (441 '), the second oil scraping block (442'), the third oil scraping block (443 ') and the fourth oil scraping block (444') each have a first insertion portion (4412 ') protruding toward the corresponding rack toward one side of the corresponding rack, the height of the first insertion portion (4412') being smaller than the height of the oil guide groove (445); or, the first movable oil scraping strip (441 "), the second movable oil scraping strip (442"), the third movable oil scraping strip (443 ") and the fourth movable oil scraping strip (444") each have, toward one side of the corresponding rack, a second insertion portion (4413 ') protruding toward the corresponding rack, the second insertion portion (4413') having a height smaller than that of the oil guide groove (445).