CN216295471U - Kitchen appliance cleaning circulating water tank and range hood using same - Google Patents

Abstract

The utility model relates to a circulating water tank for cleaning kitchen appliances and a range hood using the same, comprising: the water tank body is provided with a water tank body and is used for receiving cleaning mixed liquid flowing down from a part to be cleaned on the self-sucking range hood; the sedimentation filtering device is arranged in the water tank body and comprises first guide plates and second guide plates which are sequentially and alternately arranged in the vertical direction, each first guide plate is obliquely arranged from top to bottom, a first overflowing gap is formed between the bottom of each first guide plate and the inner wall surface of the water tank body, each second guide plate is obliquely arranged from top to bottom, the oblique direction of each second guide plate is opposite to that of the first guide plate, and a second overflowing gap is formed between the bottom of each second guide plate and the inner wall surface of the water tank body. The circulating water tank can more conveniently filter the cleaning liquid and effectively reduce the use cost.

Description

Kitchen appliance cleaning circulating water tank and range hood using same

Technical Field

The utility model relates to the technical field of kitchen appliances, in particular to a circulating water tank for cleaning the kitchen appliances and a range hood applying the circulating water tank.

Background

In the long-term use process of the range hood, the inside and the outside of the range hood are difficult to avoid being polluted by grease, so the range hood and parts thereof need to be cleaned regularly. At present, most of range hoods adopt automatic cleaning and oil removing methods such as steam cleaning and heating, a water pump pumps liquid in a liquid storage container to heat in a steam generator, and then the liquid heated to a certain temperature is directly sprayed on parts needing to be cleaned. However, the volume of the container for containing water or cleaning liquid is limited, and the cleaning effect is limited by the volume of the liquid in the container, so most parts are not cleaned, the water or the cleaning liquid is consumed, the water for cleaning once directly flows to the waste water box, the water needs to be changed if the parts are cleaned again, the circular cleaning cannot be realized, and the cleaning effect is influenced.

For this reason, chinese utility model patent that application number is CN201721448982.6 (the grant bulletin number is CN207438678U) discloses a range hood's washing circulating device and range hood, is equipped with the drain in the range hood, and range hood's washing circulating device includes: the liquid storage container is provided with a liquid inlet pipe and a liquid outlet pipe, and the liquid inlet pipe is connected with a sewage discharge outlet; the heating cavity is arranged in the range hood to heat liquid flowing out of the liquid storage container; the spray arm is arranged in the range hood and is connected with the heating cavity, and the spray arm is used for spraying the heated liquid to the part of the range hood needing to be cleaned; the water pump is connected between the liquid outlet pipe and the heating cavity, and a filtering device is arranged at the upstream of the water pump. This patent is through stock solution container, heating chamber, spray arm and water pump cooperation, has avoided receiving the restriction of liquid volume in the cleaning process to promoted cleaning efficiency, and, be equipped with filter equipment in the upper reaches of water pump, can prevent in the impurity entering water pump in the liquid or other spare parts.

Above-mentioned patent filters the sewage after will wasing the completion through the filter equipment who adds and returns the stock solution container to realize the used repeatedly of washing liquid, however, because the greasy dirt volume is great in the sewage after the washing, along with the increase of washing number of times, filter equipment's filter core part also need frequently to be changed, and user's use cost is higher, and the operation is also loaded down with trivial details relatively, has reduced user's use and has experienced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the first technical problem and provide a circulating water tank for cleaning a kitchen appliance, which can more conveniently filter cleaning liquid and effectively reduce the use cost, aiming at the current situation of the prior art.

The second technical problem to be solved by the present invention is to provide a range hood using the above circulation water tank, aiming at the current situation of the prior art.

The technical scheme adopted by the utility model for solving the first technical problem is as follows: a circulation tank for cleaning a kitchen appliance, comprising:

the water tank body is provided with a water tank body and is used for receiving cleaning mixed liquid flowing down from a part to be cleaned on the self-sucking range hood;

the sedimentation filter device comprises first guide plates and second guide plates which are sequentially and alternately arranged in the vertical direction, each first guide plate is obliquely arranged from top to bottom, a first overflowing gap is formed between the bottom of each first guide plate and the inner wall surface of the water tank body, each second guide plate is obliquely arranged from top to bottom, the oblique direction of each second guide plate is opposite to that of the first guide plate, and a second overflowing gap is formed between the bottom of each second guide plate and the inner wall surface of the water tank body.

In order to fixedly support the first guide plate and the second guide plate and ensure the overall strength of the sedimentation filtering device, the sedimentation filtering device further comprises vertically arranged support rods, and the upper parts of the first guide plates and the upper parts of the second guide plates are connected with the support rods.

In order to facilitate the settling filter device to be placed in the water tank body and taken out for cleaning, each first flow guide plate, each second flow guide plate and the support rod are integrated, and the integrated piece can be placed in the water tank body and taken out of the water tank body.

In order to ensure the settling effect of the settling and filtering device on impurities in the cleaning mixed liquor, the included angle between each first guide plate and the horizontal plane is alpha, and the included angle between each second guide plate and the horizontal plane is beta, wherein alpha is more than or equal to 15 degrees and less than or equal to 45 degrees, and beta is more than or equal to 15 degrees and less than or equal to 45 degrees.

After the sedimentation filtering device is used for processing, a liquid layer at the bottom of the water tank body is relatively clean and can be used as cleaning liquid for recycling, a liquid outlet is formed in the bottom of the water tank body, a first liquid outlet joint is arranged on the liquid outlet, and a port of the first liquid outlet joint, which is located on the water tank body, is higher than the bottom surface of the inner wall of the water tank body. It is contemplated that the liquid outlet may be located in a bottom region of a sidewall of the tank body.

For the convenient purification condition of liquid level condition and liquid layer in the user observation water tank, the whole transparent or local transparent structure that is of water tank body.

In order to block some impurities which have lighter density and float on the water surface in the cleaning liquid, a third overflowing gap is formed between the upper part of the first guide plate and the upper part of the adjacent second guide plate.

In order to enable the sedimentation filtering device to be matched with the water tank body so as to ensure the filtering effect, the water tank body is integrally in a square shape, the first guide plate and the second guide plate are square plates, the first guide plate is provided with a first side edge and a second side edge which are opposite in the up-down direction and two third side edges which are connected with the first side edge and the second side edge, the first side edge of the first guide plate and the inner wall of the water tank body are formed with a first overflowing gap, the third side edge of the first guide plate is connected with the inner wall surface of the water tank body, each second guide plate is provided with a fourth side edge and a fifth side edge which are opposite in the up-down direction and two sixth side edges which are connected with the fourth side edge and the fifth side edge, the fourth side edge of the second guide plate and the inner wall of the water tank body are formed with a second overflowing gap, and the second side edge of the first guide plate and the second guide plate are connected with each other, And a third overflowing gap is formed between the fifth side edge of the second guide plate and the first guide plate, and the sixth side edge of the second guide plate is connected with the inner wall surface of the water tank body.

The technical scheme adopted by the utility model for solving the second technical problem is as follows: a range hood of application such as above-mentioned circulating water tank includes:

the range hood main body is provided with a sewage draining outlet;

the inlet of the liquid supply pump is connected with the circulating water tank;

the spray head is connected with the outlet of the liquid supply pump and is used for spraying cleaning liquid onto a part to be cleaned in the range hood main body;

the circulating water tank is connected with the sewage draining outlet and is used for receiving the cleaning mixed liquid flowing out of the sewage draining outlet.

In order to wash corresponding pipeline after the circulation cleaning process, still include clear liquid case and second transfer line, the second transfer line is connected clear liquid case with the liquid feed pump, the liquid feed pump through first transfer line with circulation tank links to each other, is equipped with first solenoid valve on this first transfer line, be equipped with the second solenoid valve on the second transfer line, first solenoid valve and second solenoid valve are connected with range hood's control system electricity.

In order to simplify the structure and facilitate the replacement of the cleaning liquid by a user, the cleaning liquid tank and the circulating water tank are arranged side by side from left to right and are integrated, and the cleaning liquid tank and the circulating water tank are arranged on the range hood main body in a drawing mode.

Compared with the prior art, the utility model has the advantages that:

1. the sedimentation filter device of the first guide plate and the second guide plate which are sequentially arranged in a staggered manner in the vertical direction can effectively filter impurities in cleaning mixed liquid entering the water tank body, wherein a first overflowing gap formed between the bottom of the first guide plate and the inner wall of the water tank body and a second overflowing gap formed between the bottom of the second guide plate and the inner wall of the water tank body can filter out larger impurities, and the impurities in the bottommost region of the water tank body are reduced.

2. A third overflowing gap formed between the upper part of the first guide plate and the upper part of the adjacent second guide plate can block some impurities which are lighter in density and float on the water surface in the cleaning liquid.

3. When entering into water tank body flow great, the setting in above-mentioned third overflowing clearance also can slow down the speed that floats impurity entering into water tank body's bottommost region to the liquid layer of the bottom of having guaranteed water tank body in the at utmost can be in relative clean state for a long time, in order to supply washing liquid circulation to use.

4. The circulating water tank can more conveniently filter the cleaning liquid without adopting a filter device with higher cost in the prior art, thereby effectively reducing the use cost of users.

Drawings

Fig. 1 is a front view of a range hood according to an embodiment of the present invention (showing relevant components therein);

FIG. 2 is a schematic perspective view of a circulation water tank and a clear water tank according to an embodiment of the present invention (the clear water tank and the circulation water tank are integrated);

FIG. 3 is an exploded view of FIG. 2;

fig. 4 is a cross-sectional view of fig. 2 in the left-right direction.

Detailed Description

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

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and to simplify the description, but are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and that the directional terms are used for purposes of illustration and are not to be construed as limiting, for example, because the disclosed embodiments of the present invention may be oriented in different directions, "lower" is not necessarily limited to a direction opposite to or coincident with the direction of gravity. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

Referring to fig. 1 to 4, a range hood with a cleaning function includes a range hood main body 10, a circulation cleaning device, a liquid supply pipe device, a water quality monitoring unit 51, and a cleaning detection module 52.

Figure 1 shows a front view of a range hood showing the internal relevant components of the range hood. As shown in fig. 1, the range hood main body 10 includes a fan frame 11, a smoke collecting hood 12 and a fan system, the fan system is disposed in the fan frame 11, and the smoke collecting hood 12 is disposed at the bottom of the fan frame 11. The fan system comprises a volute 13 and an impeller 14 assembly arranged in the volute 13, and the structures are all in the prior art.

In the long-term use process of the range hood, the inside and the outside of the range hood are difficult to avoid being polluted by grease, so the range hood and parts thereof need to be cleaned regularly. This embodiment adopts circulation belt cleaning device to wash the inside relevant part of range hood. The circulating cleaning device is arranged inside the range hood main body 10 and specifically comprises a liquid supply pump 21, a circulating water tank 22, a clear liquid tank 26, a heating device and a spray head 23, wherein an inlet of the liquid supply pump 21 is connected with the circulating water tank 22 and used for sucking cleaning liquid from the circulating water tank 22, and the spray head 23 is connected with an outlet of the liquid supply pump 21 and used for spraying the cleaning liquid onto a part to be cleaned in the range hood main body 10. The heating unit 29 is disposed in a water flow path between the liquid supply pump 21 and the spray header 23, and is configured to heat the cleaning liquid flowing from the liquid supply pump 21 to the spray header 23, so as to improve the cleaning effect, and specifically, the heating unit 29 may employ a heating pipe through which the cleaning liquid flows or other various existing heating member structures that can heat the cleaning liquid in the path. The part to be cleaned of this embodiment includes the volute 13, the impeller 14 or other parts that are easy to accumulate greasy dirt, specifically, this embodiment is to provide a drain 100 at the bottom of the volute 13, and in the cleaning process, the cleaning mixture that is sprayed onto the parts such as the volute 13 and flows down can be collected at the bottom of the volute 13, and flows out through the drain 100, and enters the circulation water tank 22 through the drain 15 connected to the circulation water tank 22.

With continued reference to fig. 1, the fluid supply pump 21 is connected to the circulation tank 22 through a first fluid line 24, and a first solenoid valve 25 is provided on the first fluid line 24. The clear liquid box 26 is also connected with the liquid supply pump 21 through a second liquid conveying pipe 27, a second electromagnetic valve 28 is arranged on the second liquid conveying pipe 27, and the first electromagnetic valve 25 and the second electromagnetic valve 28 are electrically connected with a control system of the range hood. The liquid supply pump 21 can selectively suck the cleaning liquid from the circulation water tank 22 or the clear liquid tank 26 by opening and closing the first electromagnetic valve 25 and the second electromagnetic valve 28, and the specific control process is described below.

The cleaning detection module 52 is used for detecting the cleaning degree of the part to be cleaned of the range hood, and is electrically connected with the control system of the range hood. When the detection module detects that the cleaning degree of the part to be cleaned does not reach the standard, the circulating cleaning device is controlled to continue working, and when the detection module detects that the cleaning degree of the part to be cleaned is qualified, the circulating cleaning device can be controlled to stop acting. The cleaning detection module 52 of the present embodiment may employ various existing technologies capable of detecting the amount of oil contamination, such as a photosensor detection module for detecting the amount of oil contamination, an image capturing processing component, and the like.

Fig. 2 shows a schematic perspective view of the circulation water tank 22 and the clear liquid tank 26, wherein the circulation water tank 22 is used for receiving the cleaning mixture flowing down from the part to be cleaned on the range hood, and performing sedimentation filtration on the received cleaning mixture to form a relatively clean liquid layer at the bottom for recycling as the cleaning liquid. The cleaning fluid tank 26 is used to provide clean cleaning fluid at the beginning of the cleaning process and to clean the corresponding lines after the cleaning process has ended

With reference to fig. 2, the clear liquid tank 26 and the circulating water tank 22 of the present embodiment are arranged side by side from left to right, and the clear liquid tank and the circulating water tank are an integral component and are disposed on the range hood main body 10 in a drawing manner, and a handle 260 for a user to hold is correspondingly disposed on a side wall of the clear liquid tank 26, so that the user can conveniently draw out and replace the cleaning liquid.

Fig. 3 is an exploded view of the circulation tank 22, and it can be seen that the circulation tank 22 includes a tank body 220 and a settling filter device 30 provided in the tank body 220. The tank body 220 is a square with an open upper portion, the bottom of the tank body 220 has a liquid outlet 221 (see fig. 4 in detail), the liquid outlet 221 is provided with a first liquid outlet joint 222, and the first liquid outlet joint 222 is connected to an inlet of the liquid supply pump 21 through the first liquid conveying pipe 24. The bottom of the clear liquid tank 26 is provided with a second liquid outlet joint 261 communicated with the inner cavity thereof, and the second liquid outlet joint 261 is connected with the liquid supply pump 21 through a second liquid conveying pipe 27. In addition, in order to facilitate a user to observe a liquid level condition and a purification condition of the liquid layer in the tank, the tank body 220 is a transparent member as a whole or a transparent structure as a part.

With continued reference to fig. 3, the sedimentation filter device 30 includes a first baffle 31, a second baffle 32, and a support rod 33, the first baffle 31 and the second baffle 32 are sequentially arranged in a staggered manner in the vertical direction, and the support rod 33 is vertically disposed to connect the first baffle 31 and the second baffle 32 together. Each first baffle 31 is obliquely arranged from top to bottom, and each second baffle 32 is also obliquely arranged from top to bottom, wherein the oblique direction of the second baffle 32 is opposite to that of the first baffle 31. That is, the upper portion of the first baffle 31 and the upper portion of the second baffle 32 are vertically overlapped, and the support bar 33 is connected to a position corresponding to an overlapped region. Each of the first baffle 31, each of the second baffle 32, and the support bar 33 are a single piece that can be placed into and taken out of the tank body 220 to facilitate cleaning.

Fig. 4 is a cross-sectional view of fig. 2 taken along the left-right direction, the whole tank body 220 is square, and the first baffle 31 and the second baffle 32 are square plates. The first baffle 31 has a first side 311 and a second side 312 opposite to each other in the up-down direction, and two third sides 313 connecting the first side 311 and the second side 312, wherein a first flow gap 41 is formed between the first side 311 of the first baffle 31 and the inner wall of the tank body 220, and the third side 313 of the first baffle 31 is connected to the inner wall of the tank body 220 (herein, "connected" may be understood as substantially fitting). Each second baffle 32 has a fourth side 321 and a fifth side 322 opposite to each other in the up-down direction, and two sixth sides 323 connecting the fourth side 321 and the fifth side 322, a second overflowing gap 42 is formed between the fourth side 321 of the second baffle 32 and the inner wall of the tank body 220, a third overflowing gap 43 is formed between the second side 312 of the first baffle 31 and the second baffle 32, and between the fifth side 322 of the second baffle 32 and the first baffle 31, and the sixth sides 323 of the second baffle 32 are connected to the inner wall of the tank body 220.

The sedimentation filter device 30 of the first guide plate 31 and the second guide plate 32 which are vertically and sequentially arranged in a staggered manner can effectively filter impurities in cleaning mixed liquid entering the water tank body 220, wherein a first overflowing gap 41 formed between the bottom of the first guide plate 31 and the inner wall of the water tank body 220 and a second overflowing gap 42 formed between the bottom of the second guide plate 32 and the inner wall of the water tank body 220 can filter out larger impurities, and the impurities with larger volume in the bottommost region of the water tank body 220 are reduced. On the other hand, the third overflowing gap 43 formed between the upper part of the first guide plate 31 and the upper part of the adjacent second guide plate 32 can block some impurities which have lighter density and float on the water surface in the cleaning liquid; when entering into water tank body 220 flow great, above-mentioned structure sets up, also can slow down the speed that floating impurity enters into water tank body 220's bottommost region to the liquid layer of the bottom of having guaranteed water tank body 220 in the at utmost can be in relative clean state for a long time, in order to supply washing liquid circulation to use.

With continued reference to fig. 4, in a state that the sedimentation filter device 30 is placed in the water tank body 220, an included angle between each first guide plate 31 and the horizontal plane is α, and an included angle between each second guide plate 32 and the horizontal plane is β, wherein α is greater than or equal to 15 degrees and less than or equal to 45 degrees, β is greater than or equal to 15 degrees and less than or equal to 45 degrees, and preferably, both the included angle α and the included angle β are 30 degrees to ensure a sedimentation effect of the sedimentation filter device 30 on impurities in the cleaning mixed liquid.

The water quality monitoring unit 51 is used to detect the water quality of the cleaning mixture in the circulation tank 22. Specifically, the water quality monitoring unit 51 of the present embodiment is electrically connected to the control system of the range hood, so as to control the liquid supply pump 21 to be closed when the cleaning mixed liquid in the circulation water tank 22 reaches a certain pollution degree, and remind the user to replace the cleaning liquid. Specifically, the water quality monitoring unit 51 may adopt various detection devices used for detecting water quality in the prior art, and preferably, the water quality monitoring unit 51 of the present embodiment is at least one of an ultrasonic detection device, an infrared photoelectric sensor device, a resistivity detection device, or a photographic imaging processing device. For example, fig. 1 shows that an infrared photoelectric sensor device is disposed outside the circulating water tank 22 as the water quality monitoring unit 51, and fig. 2 shows that an ultrasonic detection device is disposed as the water quality monitoring unit 51, wherein the ultrasonic detection device includes an ultrasonic transmitting module and an ultrasonic transmitting and receiving module, which are disposed on two sides of the water tank body 220. The structures of the ultrasonic detection device, the infrared photoelectric sensor device, the resistivity detection device or the shooting imaging processing device and the water quality detection principle are the prior art, and are not described herein again.

The working process of the range hood with the cleaning function of the embodiment is as follows:

when the cleaning program of the range hood of the embodiment is running, whether the cooking time period is the time period of cooking by a user can be considered, firstly, the working time of each day needs to be judged, for example, when the time is 2-3 pm, the cleaning degree inside the range hood can be judged, the cleaning detection module 52 is started, and when the cleaning detection module 52 detects that the internal components of the range hood need to be cleaned, the cleaning program can be automatically started.

The specific cleaning process is that the liquid supply pump 21 starts to work, the first electromagnetic valve 25 is opened, and a certain amount of cleaning liquid is sucked from the clear liquid tank 26 at this time, so as to wet the blades with cleaning parts such as the impeller 14 and accelerate the expansion of grease on the surfaces of the blades, and since the flow rate of the liquid supply pump 21 is known, the amount of the cleaning liquid in the first cleaning process can be controlled only by controlling the opening time of the second electromagnetic valve 28. After the cleaning liquid is sprayed for the first time, the system waits for 3-5min in a standby mode so as to enable the blades to be fully wet. Next, the cleaning liquid can be sprayed for the second time, the interior of the blade is cleaned, and similarly, the using amount of the cleaning liquid for the second cleaning is controlled by utilizing the opening time of the second electromagnetic valve 28, the cleaning mixed liquid after the first cleaning and the second cleaning can flow into the circulating water tank 22 from the drain pipe 15 at the lower end of the volute 13, at the moment, the system can judge the cleaning condition inside the range hood, if the cleaning standard is reached after the second spraying, the second electromagnetic valve 28 is opened by the system, the cleaning liquid is continuously sucked, the whole working pipeline is flushed, and the service life of the whole system is prolonged. If the degree of cleaning of the internal components of the range hood does not meet the cleaning standard after the second cleaning, the circulation tank 22 is operated, wherein the second solenoid valve 28 is closed and the first solenoid valve 25 is opened.

The sedimentation filter device 30 in the circulation water tank 22 performs sedimentation filtration on the received cleaning mixed liquid from top to bottom, and forms a relatively clean liquid layer at the bottom for recycling as the cleaning liquid. The liquid supply pump 21 draws the relatively clean cleaning liquid at the bottom from the circulating water tank 22 through the first liquid conveying pipe 24, and continues to circularly wash the parts to be cleaned of the range hood. After the nth cycle of cleaning is finished, if the cleaning detection module 52 detects that the interior of the range hood reaches the cleaning standard, the third time of spraying clear liquid is carried out, the second electromagnetic valve 28 is opened, and clean cleaning liquid is sucked from the clear liquid tank 26 to wash the pipeline for simple maintenance.

Claims (11)

1. A circulation tank for cleaning a kitchen appliance, comprising:

the water tank body (220) is used for receiving cleaning mixed liquid flowing down from a part to be cleaned of the kitchen appliance;

the method is characterized in that: the water tank comprises a water tank body (220) and is characterized by further comprising a sedimentation filtering device (30) arranged in the water tank body (220), wherein the sedimentation filtering device (30) comprises first guide plates (31) and second guide plates (32) which are vertically and sequentially arranged in a staggered mode, each first guide plate (31) is obliquely arranged from top to bottom, a first overflowing gap (41) is formed between the bottom of the sedimentation filtering device and the inner wall surface of the water tank body (220), each second guide plate (32) is also obliquely arranged from top to bottom, the oblique direction of the sedimentation filtering device is opposite to that of the first guide plate (31), and a second overflowing gap (42) is formed between the bottom of the second guide plate (32) and the inner wall surface of the water tank body (220).

2. The circulation tank for cleaning a kitchen appliance according to claim 1, wherein: the sedimentation filter device (30) further comprises supporting rods (33) which are vertically arranged, and the upper parts of the first guide plates (31) and the second guide plates (32) are connected with the supporting rods (33).

3. The circulation tank for cleaning a kitchen appliance according to claim 2, wherein: each of the first baffle (31), the second baffle (32), and the support bar (33) are a single piece that can be placed into and removed from the tank body (220).

4. The circulation tank for cleaning a kitchen appliance according to claim 1, wherein: the included angle between each first guide plate (31) and the horizontal plane is alpha, the included angle between each second guide plate (32) and the horizontal plane is beta, wherein alpha is larger than or equal to 15 degrees and is smaller than or equal to 45 degrees, and beta is larger than or equal to 15 degrees and is smaller than or equal to 45 degrees.

5. The circulation tank for cleaning a kitchen appliance according to claim 1, wherein: the bottom of the water tank body (220) is provided with a liquid outlet (221), the liquid outlet (221) is provided with a first liquid outlet joint (222), and the first liquid outlet joint (222) is positioned at the position, higher than the bottom surface of the inner wall of the water tank body (220), of the port of the water tank body (220).

6. The circulation tank for cleaning a kitchen appliance according to claim 1, wherein: the whole water tank body (220) is a transparent piece or a local transparent structure.

7. The circulation tank for cleaning kitchen appliances according to any one of claims 1 to 6, wherein: and a third flow-passing gap (43) is formed between the upper part of the first guide plate (31) and the upper part of the adjacent second guide plate (32).

8. The circulation tank for cleaning a kitchen appliance according to claim 7, wherein: the water tank body (220) is integrally square, the first guide plate (31) and the second guide plate (32) are square plates, the first guide plate (31) is provided with a first side edge (311) and a second side edge (312) which are opposite in the up-down direction and two third side edges (313) which are connected with the first side edge (311) and the second side edge (312), the first side edge (311) of the first guide plate (31) is connected with the inner wall of the water tank body (220) to form a first overflowing gap (41), the third side edge (313) of the first guide plate (31) is connected with the inner wall surface of the water tank body (220), each of the second guide plate (32) is provided with a fourth side edge (321) and a fifth side edge (322) which are opposite in the up-down direction and two sixth side edges (323) which are connected with the fourth side edge (321) and the fifth side edge (322), the fourth side edge (321) of the second guide plate (32) is connected with the inner wall of the water tank body (220) The second overflowing gap (42) is formed, the third overflowing gap (43) is formed between the second side edge (312) of the first guide plate (31) and the second guide plate (32) and between the fifth side edge (322) of the second guide plate (32) and the first guide plate (31), and the sixth side edge (323) of the second guide plate (32) is connected with the inner wall surface of the water tank body (220).

9. A range hood using the circulation tank for cleaning the kitchen appliances according to any one of claims 1 to 8, wherein: the method comprises the following steps:

the range hood main body (10) is provided with a sewage draining outlet (100);

the inlet of the liquid supply pump (21) is connected with the circulating water tank (22);

the spray head (23) is connected with an outlet of the liquid supply pump (21) and is used for spraying cleaning liquid onto a part to be cleaned in the range hood main body (10);

the circulating water tank (22) is connected with the sewage outlet (100) and is used for receiving cleaning mixed liquid flowing out of the sewage outlet (100).

10. The range hood of claim 9, wherein: still include clear liquid case (26) and second transfer line (27), second transfer line (27) are connected clear liquid case (26) with feed pump (21), feed pump (21) through first transfer line (24) with circulating water tank (22) link to each other, are equipped with first solenoid valve (25) on this first transfer line (24), be equipped with second solenoid valve (28) on second transfer line (27), first solenoid valve (25) and second solenoid valve (28) are connected with the control system electricity of range hood.

11. The range hood of claim 10, wherein: the clear liquid tank (26) and the circulating water tank (22) are arranged side by side from left to right and are integrated, and the clear liquid tank and the circulating water tank are arranged on the range hood main body (10) in a drawing mode.

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