CN215062300U - Smoke exhaust ventilator - Google Patents

Abstract

The utility model discloses a range hood, which comprises a shell and a smoke collecting piece; the shell is provided with a smoke collection cavity, the outer wall of the shell is provided with a smoke collection port communicated with the smoke collection cavity, and the upper part of the shell is provided with a hinge piece; the upper end of the cigarette gathering piece is hinged to the shell through the hinge piece, the cigarette gathering piece can be opened or covered on the cigarette gathering port, and when the cigarette gathering piece is opened, the cigarette gathering piece and the outer wall of the shell form a cigarette gathering area. The utility model provides a range hood can increase and hold together the cigarette scope, prevents that the oil smoke from escaping and diffusing, improves the performance of inhaling oil smoke.

Description

Smoke exhaust ventilator

Technical Field

The utility model relates to a kitchen guarding's household electrical appliances technical field, in particular to range hood.

Background

The cooking fume is easy to generate when cooking in a kitchen, so that a range hood is required to be configured to process the cooking fume in the kitchen, the process of processing the cooking fume is divided into three steps of fume gathering, fume entering and fume discharging, and the fume gathering means that the fume generated in the cooking process is gathered to facilitate the subsequent fume entering process.

Common range hoods have a small smoke collection range, and a part of oil smoke is easy to escape out of the smoke collection range of the range hood and spread to the periphery of a kitchen, so that the kitchen environment is affected.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a range hood can increase and hold together the cigarette scope, prevents that the oil smoke from escaping and diffusing, improves the performance of inhaling oil smoke.

The range hood according to the embodiment of the utility model comprises a shell and a smoke collecting piece; the shell is provided with a smoke collection cavity, the outer wall of the shell is provided with a smoke collection port communicated with the smoke collection cavity, and the upper part of the shell is provided with a hinge piece; the upper end of the cigarette gathering piece is hinged to the shell through the hinge piece, the cigarette gathering piece can be opened or covered on the cigarette gathering port, and when the cigarette gathering piece is opened, the cigarette gathering piece and the outer wall of the shell form a cigarette gathering area.

According to the utility model discloses range hood has following beneficial effect at least: when the smoke gathering piece is opened, the lower end of the smoke gathering piece rotates around the hinge piece to be far away from the outer wall of the shell, so that the smoke gathering port is communicated with the outside, meanwhile, a smoke gathering area is formed between the smoke gathering piece and the outer wall of the shell to prevent the oil smoke from escaping and diffusing, because the hinge piece is positioned on the upper part of the shell, the upper end of the smoke gathering piece is also positioned on the upper part of the shell, and under the premise that the shell with the same height and the lower end of the smoke gathering piece do not excessively protrude downwards out of the shell to avoid interference on kitchenware below the shell, the distance between the upper end and the bottom end of the smoke gathering piece can be longer, therefore, compared with the traditional range hood, when the smoke gathering piece is opened at the same angle, the lower end of the smoke gathering piece can be longer, namely, the distance between the lower end of the smoke gathering piece and the outer wall of the shell is larger, so that a larger smoke gathering area is arranged between the smoke gathering piece and the shell, thereby increasing the smoke gathering range, and traditional range hood will reach the equivalent range of holding together the cigarette, then need will hold together the cigarette piece and open bigger angle to make and hold together the cigarette piece and take place to interfere with people or the object in the kitchen more easily, bring the inconvenience of cooking, and if hold together the opening angle of cigarette piece too big, then cause the oil smoke to escape and spread easily. Therefore, the utility model discloses a range hood has better oil absorption cigarette performance.

According to the utility model discloses a some embodiments, the last border of collection mouth is located the upper portion of casing, the lower border of collection mouth is located the lower part of casing, hold together the lower extreme of cigarette piece with the lower part butt or the detachable connection of casing.

According to some embodiments of the present invention, the hinge member is configured as a hinge, the hinge includes a first leaf and a second leaf, the first leaf is rotatably connected to the second leaf, the first leaf is connected to the housing, and the second leaf is connected to the smoke collecting member; and a supporting piece is arranged between the second leaf and the cigarette gathering piece, two end faces of the supporting piece are respectively connected with the second leaf and the cigarette gathering piece, and the length of the supporting piece is greater than that of the second leaf.

According to some embodiments of the utility model, be equipped with the oil net on the collection smoke mouth, the oil net can cover collection smoke mouth.

According to some embodiments of the utility model, still include negative pressure device, negative pressure device locates on the casing, negative pressure device is equipped with the air intake, the air intake with collection smoke chamber intercommunication.

According to some embodiments of the utility model, hold together and be equipped with the observation window on the cigarette piece, the inboard of observation window is equipped with control panel, control panel with the negative pressure device electricity is connected.

According to some embodiments of the utility model, be equipped with the oil trap chamber in the negative pressure device, the casing is equipped with the oil trap, the bottom of negative pressure device is equipped with the connecting pipe, the inner chamber of connecting pipe respectively with the oil trap chamber with the oil trap intercommunication.

According to the utility model discloses a some embodiments still include the circulating pump, the circulating pump is located on the casing, the circulating pump is equipped with liquid suction pipe and drain pipe, the one end of liquid suction pipe is located in the oil trap, the one end of drain pipe is located the oil condensate intracavity, the one end of drain pipe is equipped with hydrojet, hydrojet orientation the chamber wall of oil condensate chamber.

According to the utility model discloses a some embodiments still include drive arrangement, drive arrangement locates on the casing, drive arrangement can drive hold together cigarette spare swing so that hold together cigarette spare and open or the lid is closed collection mouth.

According to the utility model discloses a some embodiments, drive arrangement includes second motor, first connecting rod and second connecting rod, the second motor is located on the casing, the output shaft of second motor with the one end of first connecting rod is connected and can be driven first connecting rod rotates, the other end of first connecting rod with the one end of second connecting rod rotates and connects, the other end of second connecting rod with it rotates to hold together cigarette piece and connects.

According to some embodiments of the utility model, the other end of second connecting rod with the middle part or the bottom of holding together cigarette piece rotate to be connected.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a partially exploded schematic view of a range hood according to an embodiment of the present invention;

FIG. 2 is a side cross-sectional schematic view of the range hood shown in FIG. 1;

fig. 3 is a schematic view of the internal structure of the range hood shown in fig. 1;

FIG. 4 is an enlarged schematic view of area A shown in FIG. 3;

fig. 5 is a schematic view of the negative pressure device of the extractor hood shown in fig. 1.

The device comprises a shell 100, a smoke collection cavity 110, a smoke collection port 120, a hinge part 130, an oil collecting groove 140, an air duct cover 150, a smoke collection part 200, an observation window 210, a support part 300, a control panel 410, an oil net 500, a negative pressure device 600, an air inlet 610, an air outlet 620, a connecting pipe 630, fan blades 640, a first motor 650, a circulating pump 700, a liquid suction pipe 710, a liquid outlet pipe 720, a liquid spray nozzle 721, a driving device 800, a second motor 810, a first connecting rod 820 and a second connecting rod 830.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

As shown in fig. 1 and fig. 2, the range hood according to the embodiment of the present invention includes a housing 100 and a smoke collecting member 200; the shell 100 is provided with a smoke collection cavity 110, the outer wall of the shell 100 is provided with a smoke collection port 120 communicated with the smoke collection cavity 110, and the upper part of the shell 100 is provided with a hinge part 130; the upper end of the cigarette gathering piece 200 is hinged with the shell 100 through the hinge piece 130, the cigarette gathering piece 200 can open or cover the cigarette gathering port 120, and when the cigarette gathering piece 200 is opened, a cigarette gathering range is formed between the lower end of the cigarette gathering piece 200 and the outer wall of the shell 100.

Specifically, the smoke collecting piece 200 may be a plate or a case cover, and each side length thereof is greater than or equal to each side length of the smoke collecting opening 120 so as to cover and cover the smoke collecting opening 120; after the cigarette gathering piece 200 is opened, the gravity borne by the cigarette gathering piece 200 can be overcome through the self friction force of the hinge piece 130 to keep the opening state, the cigarette gathering piece 200 can be locked at a preset angle through the locking structure, for example, a top rod is arranged on the shell 100, one end of the top rod is connected with the shell 100 in a pivoted mode, the other end of the top rod can be abutted or connected to the lower end of the cigarette gathering piece 200, and the cigarette gathering piece 200 is enabled to keep the opening state.

When the smoke gathering piece 200 is opened, the lower end of the smoke gathering piece 200 rotates around the hinge piece 130 to be far away from the outer wall of the shell 100, so that the smoke gathering port 120 is communicated with the outside, and meanwhile, a smoke gathering area is formed between the smoke gathering piece 200 and the outer wall of the shell 100 to prevent the smoke from escaping and diffusing, because the hinge piece 130 is positioned at the upper part of the shell 100, the upper end of the smoke gathering piece 200 is also positioned at the upper part of the shell 100, and under the premise that the lower end of the smoke gathering piece 200 does not excessively protrude downwards out of the shell 100 to avoid interference with a kitchen ware below the shell 100, the distance between the upper end and the bottom end of the smoke gathering piece 200 can be set longer, so that compared with a traditional range hood, when the smoke gathering piece 200 is opened at the same angle, the lower end of the smoke gathering piece 200 can draw a longer arc line, namely, the distance between the lower end of the smoke gathering piece 200 and the outer wall of the shell 100 is larger, so that the smoke gathering area between the smoke gathering piece 200 and the shell 100 is larger, thereby increased and held together the cigarette scope, and traditional range hood will reach the equivalent cigarette scope of holding together, then need open bigger angle with holding together cigarette piece 200 to make and hold together cigarette piece 200 and take place to interfere with people or the object in the kitchen more easily, bring the inconvenience of cooking, and if the opening angle that holds together cigarette piece 200 is too big, then cause the oil smoke to escape and spread easily. Therefore, the utility model discloses a range hood has better oil absorption cigarette performance.

Wherein, hold together cigarette piece 200 and open, when its contained angle with casing 100 is 16 degrees, have the cigarette effect of holding together of preferred, the negative pressure smoking effect of cooperation collection mouth 120 department can be with the oil smoke that rises when cooking away very first time siphons away, in the oil smoke gets into great cigarette area of holding together, is held together the cigarette board control and can't escape and diffusion to obtain a clean, clean and tidy kitchen environment, be favorable to physical and mental health.

In some embodiments of the present invention, as shown in fig. 1, the hinge member 130 is configured as a hinge, the hinge includes a first leaf and a second leaf, the first leaf is rotatably connected to the second leaf, the first leaf and the housing 100 can be fixedly connected by screwing or welding, and the second leaf and the smoke collecting member 200 can be fixedly connected by screwing or welding. The first leaf and the second leaf are connected in a rotating way, so that the cigarette gathering piece 200 can swing relative to the shell 100, and the cigarette gathering port 120 is opened or covered.

It is contemplated that in other embodiments, the hinge member 130 may also include a hinge seat and a hinge protrusion, for example, the hinge seat is disposed on the housing 100, the hinge protrusion is disposed on the smoke collecting member 200, and the hinge seat and the hinge protrusion are inserted with a pin, which forms a rotation shaft, so that the smoke collecting member 200 can swing relative to the housing 100.

Further, in some embodiments of the present invention, as shown in fig. 1, a supporting member 300 is disposed between the second sheet and the cigarette collecting member 200, two end faces of the supporting member 300 are connected to the second sheet and the cigarette collecting member 200 respectively, and the length of the supporting member 300 is greater than the length of the second sheet. Specifically, support piece 300 can be set up to platelike or blocky, and the length of support piece 300 is the interval on support piece 300's upper and lower border, and similarly, the length of second page piece is the interval on second page piece upper and lower border, through setting up support piece 300, and the length of this support piece 300 is greater than the length of second page piece, is favorable to improving the holding power of second page piece to holding together cigarette piece 200, and strengthens holding together the structural strength of cigarette piece 200, thereby it is difficult for being buckled and press-broken by self gravity to protect holding together cigarette piece 200.

In some embodiments of the present invention, the upper edge of the smoke collection opening 120 is located at the upper portion of the casing 100, and the lower edge of the smoke collection opening 120 is located at the lower portion of the casing 100, so that under the casings 100 with the same height, the distance between the upper edge and the lower edge of the smoke collection opening 120 is increased, the area of the smoke collection opening 120 is enlarged as much as possible, and the oil smoke absorption area and the oil smoke absorption efficiency are improved; the lower end of the cigarette gathering part 200 is abutted against the lower part of the casing 100, so that the cigarette gathering part 200 can cover the cigarette gathering port 120, and the cigarette gathering cavity 110 is protected.

Certainly, in other embodiments, the lower end of the smoke collecting element 200 is detachably connected to the lower portion of the casing 100, when the range hood stops operating, the smoke collecting element 200 is easily opened by mistake, specifically, the first magnetic attraction element may be disposed at the lower portion of the casing 100, the second magnetic attraction element cooperating with the first magnetic attraction element is disposed at the lower end of the smoke collecting element 200, the magnetic attraction cooperation between the first magnetic attraction element and the second magnetic attraction element is realized, the detachable connection between the smoke collecting element 200 and the casing 100 is realized, wherein the first magnetic attraction element may be configured as a magnet, the second magnetic attraction element may be configured as a magnetic metal block, or the first magnetic attraction element and the second magnetic attraction element are magnets with different magnetic poles, and both of them can satisfy the relationship of magnetic attraction cooperation. In addition, the lower end of the cigarette holding piece 200 can be detachably connected with the lower portion of the shell 100 through a conventional clamping structure, for example, a buckle is arranged on the cigarette holding piece 200, a clamping groove matched with the buckle is arranged on the shell 100, and the lower end of the cigarette holding piece 200 and the lower portion of the shell 100 are detachably connected through the matching of the buckle and the clamping groove.

In some embodiments of the present invention, as shown in fig. 1, the smoke collection port 120 is provided with an oil screen 500, the oil screen 500 can cover the smoke collection port 120, and by providing the oil screen 500, some foreign matters with larger volume can be prevented from entering the smoke collection cavity 110 to block the related channel, wherein the profile and size of the oil screen 500 can be the same as the smoke collection port 120, or can be slightly larger than the smoke collection port 120, so as to ensure that the smoke collection port 120 can be covered; the oil screen 500 can be detachably fixed on the shell 100 in a screwing mode, a clamping mode and the like, is convenient to detach and clean, and can also form an integrated structure with the shell 100 in a welding mode, so that the processing is convenient.

In some embodiments of the present invention, as shown in fig. 2, fig. 3 and fig. 5, the present invention further includes a negative pressure device 600, the negative pressure device 600 is disposed on the casing 100, the negative pressure device 600 is provided with an air inlet 610, and the air inlet 610 is communicated with the smoke collecting cavity 110. Specifically, the negative pressure device 600 may be a common centrifugal fan, axial flow fan or cross flow fan, and the like, and each of the negative pressure device has an air inlet 610 and an air outlet 620, wherein the air inlet 610 sucks air to form negative pressure to suck in external air to achieve the smoke collecting function of the range hood, as shown in the figure, the centrifugal fan includes a fan housing, a fan blade 640 and a first motor 650, the air inlet 610 and the air outlet 620 are disposed on the fan housing, the fan blade 640 is disposed in an inner cavity of the fan housing, the first motor 650 is connected to the fan blade 640 to drive the fan blade 640 to rotate, the air inlet 610 is communicated with the smoke collecting cavity 110 through an air inlet channel, and the air inlet channel is a part of the inner cavity of the housing 100.

Further, in some embodiments of the present invention, the top of the casing 100 is provided with the wind pipe cover 150, the inner cavity of the wind pipe cover 150 is communicated with the smoke collecting cavity 110, the negative pressure device 600 is disposed in the wind pipe cover 150, the negative pressure device 600 and the wind pipe cover 150 form a wind cabinet assembly, which sucks wind to the smoke collecting cavity 110, so that the smoke collecting cavity 110 forms a negative pressure region and adsorbs the external oil smoke.

Further, in some embodiments of the present invention, as shown in fig. 1, a control module is further disposed in the range hood, the control module includes a controller and a control panel 410, the controller can be integrated with the control panel 410 into an integrated structure, the controller can also be independently disposed in the casing 100, or independently arranged outside the shell 100 and electrically connected with the control panel 410 through a connecting wire, the cigarette collecting piece 200 is provided with an observation window 210, the inner side of the observation window 210 is provided with the control panel 410, the control panel 410 is electrically connected with the negative pressure device 600 through a controller, by inputting instructions on the control panel 410, the controller controls the operation of the negative pressure device 600 or changes related parameters, and the related parameters of the negative pressure device 600 can be visually displayed through the control panel 410, so that a user can conveniently know and control the related parameters of the range hood through the observation window 210. Specifically, the observation window 210 and the cigarette gathering member 200 are integrated, that is, the cigarette gathering member 200 itself is transparent plate-shaped and may be made of glass or acrylic material; the observation window 210 may also be disposed at a local portion of the cigarette gathering member 200, for example, an avoidance opening is formed at a middle portion of the cigarette gathering member 200, the observation window 210 may be a transparent glass plate, and the glass plate is embedded in the avoidance opening so as to observe information displayed by the control panel 410 in the avoidance opening; the observation window 210 may also include only an avoidance opening formed in the middle of the cigarette gathering member 200, through which the control panel 410 at the avoidance opening can be visually observed and operated.

Note that, when the observation window 210 and the smoke collecting member 200 are formed as glass plates as a whole, the thickness of the glass plates is preferably controlled so that the user can touch the control panel 410 through the observation window 210.

Further, in some embodiments of the present invention, a condensate cavity is disposed in the negative pressure device 600, the casing 100 is provided with the oil collecting tank 140, the bottom of the negative pressure device 600 is provided with the connecting pipe 630, and the inner cavity of the connecting pipe 630 is respectively communicated with the condensate cavity and the oil collecting tank 140. The oil condensing cavity can be the inner wall of the fan shell, and during the operation process of the fan, airflow can contact with the inner wall of the fan shell, so that oil smoke contacts with the inner wall of the fan shell, the oil smoke condenses into liquid oil after contacting with the wall of the oil condensing cavity, the liquid oil is gathered at the bottom of the oil condensing cavity under the action of gravity, and the liquid oil is collected by the connecting pipe 630 and flows into the oil collecting tank 140, so that the oil collecting operation is completed, and the influence of the oil smoke on the external environment is reduced.

Further, in some embodiments of the present invention, as shown in fig. 3 and fig. 5, the present invention further includes a circulation pump 700, the circulation pump 700 is disposed on the casing 100, the circulation pump 700 is provided with a liquid suction pipe 710 and a liquid discharge pipe 720, one end of the liquid suction pipe 710 is located in the oil collecting tank 140, one end of the liquid discharge pipe 720 is located in the oil condensation chamber, one end of the liquid discharge pipe 720 is provided with a liquid spray nozzle 721, and the liquid spray nozzle 721 faces the wall of the oil condensation chamber. In practical application, oil trap 140 except being used for gathering oil, can also install liquid such as pure water, sanitizer additional, can dilute and purify oil collecting 140's greasy dirt, circulating pump 700 absorbs the cleaning fluid in oil trap 140 through liquid suction pipe 710, then spout cleaning fluid through hydrojet 721 in the oil-condensing chamber, to the chamber wall injection in oil-condensing chamber, promote the greasy dirt landing in oil-condensing chamber wall to the bottom in oil-condensing chamber, then flow into the oil-condensing chamber again through connecting pipe 630, accomplish the circulation that fluid mixes.

In some embodiments of the present invention, as shown in fig. 3, the cigarette collecting device further includes a driving device 800, the driving device 800 is disposed on the casing 100, and the driving device 800 can drive the cigarette holding member 200 to swing so as to open the cigarette holding member 200 or close the cigarette collecting opening 120. Through setting up drive arrangement 800, conveniently opening or the lid closes cigarette piece 200, simultaneously through drive arrangement 800's initiative application of force, can conveniently make and close cigarette piece 200 and overcome gravity, keep the open mode.

Further, in some embodiments of the present invention, as shown in fig. 4, the driving device 800 includes a second motor 810, a first connecting rod 820 and a second connecting rod 830, the second motor 810 is disposed on the casing 100, an output shaft of the second motor 810 is connected with one end of the first connecting rod 820 and can drive the first connecting rod 820 to rotate, the other end of the first connecting rod 820 is connected with one end of the second connecting rod 830 in a rotating manner, and the other end of the second connecting rod 830 is connected with the smoke collecting piece 200 in a rotating manner. The output shaft of second motor 810 is fixed with first link 820 to drive first link 820 and rotate, its other end of first link 820 rotation process promotes second link 830 and removes, and second link 830 is moving the in-process and is driving and holding together the swing of cigarette piece 200, and rotate the angle change that comes the adaptation to hold together cigarette piece 200 through self, thereby realized that drive arrangement 800 drives and holds together the swing effect of cigarette piece 200.

Further, in some embodiments described above, the other end of the second connecting rod 830 is rotatably connected to the middle or the bottom of the cigarette gathering member 200, and compared with the case where the second connecting rod 830 is connected to the top of the cigarette gathering member 200, the acting force required for driving the cigarette gathering member 200 to swing can be reduced, so that the energy consumption of the second motor 810 is reduced, and the energy saving effect is achieved. Specifically, according to the lever principle, the area from the lower end of the cigarette gathering member 200 to the connection point of the second connecting rod 830 can be regarded as an active force applying arm under the action of gravity, and the torque of the active force applying arm is overcome to open or maintain the cigarette gathering member 200 in an open state, so that the lower the connection point of the second connecting rod 830 and the cigarette gathering member 200 is, the shorter the active force applying arm is, and the torque generated by overcoming the action of gravity on the active force applying arm can be reduced by connecting the second connecting rod 830 and the middle lower part of the cigarette gathering member 200.

Further, in combination with some embodiments described above, the second motor 810 and the circulation pump 700 can be electrically connected to the controller, so that the control panel 410 can be used to regulate and control the relevant parameters of the second motor 810 and the circulation pump 700, and the range hood can maintain the optimal operation state.

It can be understood that, in other embodiments, the driving device 800 may also include a second motor 810 and a connecting rod, the second motor 810 is disposed on the casing 100, one end of the connecting rod is fixedly connected to an output shaft of the second motor 810, so that the second motor 810 can drive the connecting rod to rotate, the other end of the connecting rod is slidably connected to the cigarette gathering member 200, specifically, a guiding rail bar may be disposed on the cigarette gathering member 200, and the other end of the connecting rod is disposed in a sliding groove of the guiding rail bar in sliding fit, so that the second motor 810 can also drive the connecting rod to rotate, so as to drive the cigarette gathering member 200 to swing, thereby achieving the effect of automatically opening the cigarette gathering port 120.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The present embodiment has been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the present invention.

Claims (10)

1. A range hood, comprising:

the cigarette box comprises a shell (100), wherein the shell (100) is provided with a cigarette collecting cavity (110), the outer wall of the shell (100) is provided with a cigarette collecting port (120) communicated with the cigarette collecting cavity (110), and the upper part of the shell (100) is provided with a hinge piece (130);

gather together cigarette piece (200), the upper end of gathering together cigarette piece (200) is passed through hinge spare (130) with casing (100) are articulated to link to each other, gather together cigarette piece (200) and can open or the lid closes collection mouth (120), when gathering together cigarette piece (200) and opening, gather together cigarette piece (200) with it is regional to form to gather together the cigarette between the outer wall of casing (100).

2. The range hood of claim 1,

the upper edge of the smoke collecting port (120) is positioned at the upper part of the shell (100), the lower edge of the smoke collecting port (120) is positioned at the lower part of the shell (100), and the lower end of the smoke collecting piece (200) is connected with the lower part of the shell (100) in an abutting or detachable mode.

3. The range hood of claim 2,

the hinge piece (130) is configured to be a hinge, the hinge comprises a first leaf and a second leaf, the first leaf is rotatably connected with the second leaf, the first leaf is connected with the shell (100), and the second leaf is connected with the cigarette gathering piece (200); the cigarette collecting device is characterized in that a supporting piece (300) is arranged between the second leaf and the cigarette collecting piece (200), two end faces of the supporting piece (300) are respectively connected with the second leaf and the cigarette collecting piece (200), and the length of the supporting piece (300) is larger than that of the second leaf.

4. The range hood of claim 1,

an oil net (500) is arranged on the smoke collection port (120), and the oil net (500) can cover the smoke collection port (120).

5. The range hood of claim 1,

still include negative pressure device (600), negative pressure device (600) are located on casing (100), negative pressure device (600) are equipped with air intake (610), air intake (610) with smoke collecting cavity (110) intercommunication.

6. The range hood of claim 5,

it observes window (210) to hold together to be equipped with on cigarette piece (200), the inboard of observing window (210) is equipped with control panel (410), control panel (410) with negative pressure device (600) electricity is connected.

7. The range hood of claim 5,

the oil condensing cavity is arranged in the negative pressure device (600), the oil collecting groove (140) is arranged in the shell (100), the connecting pipe (630) is arranged at the bottom of the negative pressure device (600), and the inner cavity of the connecting pipe (630) is communicated with the oil condensing cavity and the oil collecting groove (140) respectively.

8. The range hood of claim 7,

still include circulating pump (700), circulating pump (700) are located on casing (100), circulating pump (700) are equipped with liquid suction pipe (710) and drain pipe (720), the one end of liquid suction pipe (710) is located in oil trap (140), the one end of drain pipe (720) is located the oil congeals intracavity, the one end of drain pipe (720) is equipped with hydrojet mouth (721), hydrojet mouth (721) orientation the chamber wall in oil congeals chamber.

9. The range hood of claim 1,

still include drive arrangement (800), drive arrangement (800) are located on casing (100), drive arrangement (800) can drive hold together cigarette piece (200) swing so that hold together cigarette piece (200) and open or the lid is closed collection mouth (120).

10. The range hood of claim 9,

drive arrangement (800) include second motor (810), first connecting rod (820) and second connecting rod (830), second motor (810) are located on casing (100), the output shaft of second motor (810) with the one end of first connecting rod (820) is connected and can be driven first connecting rod (820) rotate, the other end of first connecting rod (820) with the one end of second connecting rod (830) is rotated and is connected, the other end of second connecting rod (830) with hold together cigarette piece (200) and rotate and be connected.

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