CN218864280U

CN218864280U - Fume exhaust fan

Info

Publication number: CN218864280U
Application number: CN202222853169.4U
Authority: CN
Inventors: 郑聪
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2022-10-27
Filing date: 2022-10-27
Publication date: 2023-04-14
Anticipated expiration: 2032-10-27

Abstract

The utility model discloses a range hood, including fan system and the belt cleaning device who is used for wasing fan system, fan system includes the spiral case, be formed with the air intake on the spiral case, belt cleaning device includes: the liquid storage box is used for storing a cleaning medium; the water inlet pipe comprises an input end of the water inlet pipe and an output end of the water inlet pipe, the input end of the water inlet pipe is communicated with the inner side of the liquid storage box, and the output end of the water inlet pipe is arranged at the air inlet of the fan system, so that the negative pressure generated at the air inlet can attract the cleaning medium in the liquid storage box; the drain pipe, the drain pipe includes drain pipe input and drain pipe output, the drain pipe input communicates with the bottom inboard of spiral case, the drain pipe output can communicate with the stock solution box, and can make the positive pressure that the spiral case bottom produced extrude the cleaning medium in the stock solution box.

Description

Fume exhaust fan

Technical Field

The utility model relates to an oil smoke purifier, especially a range hood.

Background

The range hood is a kitchen appliance for purifying the kitchen environment, and can play a role in rapidly pumping waste generated by the combustion of a stove and oil smoke generated in the cooking process out of a room, reducing pollution, purifying air and the like.

The invention discloses a range hood with a self-cleaning function, such as a Chinese invention patent with application number 201711147907.0, which comprises a fan, wherein the fan is provided with a volute, an impeller arranged in the volute and a motor used for driving the impeller to rotate, the range hood comprises a spray arm, a liquid guide pipe and a cleaning medium supply mechanism, the spray arm is arranged in the impeller and connected with an output shaft of the motor, the spray arm is hollow so as to form a liquid storage cavity, the front wall surface of the spray arm is provided with a spray hole communicated with the liquid storage cavity, the central part of the front wall surface of the spray arm is provided with a liquid guide pipe rotatably connected with a first end of the liquid guide pipe, the second end of the spray arm is connected with the cleaning medium supply mechanism, the cleaning medium supply mechanism comprises a liquid storage tank and a water pump, the liquid storage tank is used for storing cleaning media, and the water pump is connected between the liquid storage tank and the liquid guide pipe and can pump the cleaning media into the spray arm from the water storage tank through the liquid guide pipe.

The existing self-cleaning technology needs an additional power device, generally has higher cost and needs to consume additional energy power.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to the not enough of above-mentioned prior art existence, provide a range hood, the self-cleaning technique need not extra power device, and the cost is lower.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a range hood, includes fan system and the belt cleaning device who is used for wasing the fan system, the fan system includes the spiral case, be formed with air intake, its characterized in that on the spiral case: the cleaning device includes:

the liquid storage box is used for storing a cleaning medium;

the water inlet pipe comprises an input end of the water inlet pipe and an output end of the water inlet pipe, the input end of the water inlet pipe is communicated with the inner side of the liquid storage box, and the output end of the water inlet pipe is arranged at an air inlet of the fan system, so that negative pressure generated at the air inlet can attract cleaning media in the liquid storage box;

the drain pipe, the drain pipe includes drain pipe input and drain pipe output, the drain pipe input communicates with the bottom inboard of spiral case, the drain pipe output can communicate with the stock solution box, and can make the positive pressure that the spiral case bottom produced extrude the cleaning medium in the stock solution box.

The output end of the water inlet pipe is arranged at the air inlet of the fan system, negative pressure generated at the air inlet during operation of the fan system can be utilized, positive pressure generated on the inner side of the bottom of the volute during operation of the fan system conveys gas at the bottom of the volute into the liquid storage box through the drain pipe, the positive pressure and the negative pressure act simultaneously, power of a cleaning medium entering the fan system from the liquid storage box is generated, the fan system can be cleaned, cleaning is achieved without an additional power device, the cost is low, and the structure is simple.

Furthermore, in order to facilitate the collection of the cleaned waste liquid, the cleaning device further comprises a waste liquid box for collecting the cleaned waste liquid, the waste liquid box is arranged above the liquid storage box, the output end of the drain pipe is communicated with the inner side of the waste liquid box, and the inner side of the waste liquid box is communicated with the inner side of the liquid storage box so that the waste liquid and the gas at the bottom of the volute can enter the liquid storage box.

In order to be able to filter the waste liquid in the waste liquid box to retrieve the cleaning medium in order to carry out reuse, belt cleaning device still includes to carry out filterable filter screen to the waste liquid in the waste liquid box, the filter screen sets up between the inboard of waste liquid box and the inboard of stock solution box.

Preferably, the range hood is of a top suction type, the range hood further comprises a smoke collecting hood and a fan frame located above the smoke collecting hood, and the fan system is arranged in the fan frame.

In order to collect the greasy dirt on the smoke baffle, be provided with the smoking mouth on the collection cigarette cover, smoking mouth department is provided with the oil net, range hood still including corresponding the smoke baffle that sets up in the oil net below, belt cleaning device is still including the oil cup that is used for collecting the greasy dirt on the smoke baffle.

In order to collect the greasy dirt on the smoke baffle, the top of the oil cup is open, an oil discharge hole for discharging the greasy dirt is arranged on the smoke baffle, and the oil discharge hole is correspondingly arranged above the oil cup.

Furthermore, in order to avoid interference between the water inlet and outlet pipeline and the smoke baffle, the liquid storage box and the waste liquid box are positioned at the rear side of the oil cup.

Preferably, for the convenience of manufacturing, reduce cost, stock solution box, waste liquid box and oil cup are integrated into one piece.

Compared with the prior art, the utility model has the advantages of: the output end of the water inlet pipe is arranged at the air inlet of the fan system, negative pressure generated at the air inlet during operation of the fan system can be utilized, positive pressure generated on the inner side of the bottom of the volute during operation of the fan system conveys gas at the bottom of the volute into the liquid storage box through the drain pipe, the positive pressure and the negative pressure act simultaneously, power of a cleaning medium entering the fan system from the liquid storage box is generated, the fan system can be cleaned, cleaning is achieved without an additional power device, the cost is low, and the structure is simple.

Drawings

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

fig. 2 is a sectional view of the range hood according to the embodiment of the present invention;

fig. 3 is an enlarged view of a portion I of fig. 2.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

In the description of the present invention, it is to be understood that the terms "center", "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 indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and to simplify the description, rather than to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, since the disclosed embodiments of the invention may be arranged in different orientations, these directional terms are for illustrative purposes only and should not be considered limiting, as "upper", "lower", and the like are not necessarily limited to directions 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 2, a range hood includes a fume collecting hood 1 and a fan frame 2 disposed on the fume collecting hood 1, and a fan system 3 is disposed in the fan frame 2. The fan system 3 includes a volute 31 and an air inlet 32 opened at a front side of the volute 31. The bottom of the scroll casing 31 is provided with an oil leakage nozzle 311 for discharging dirty oil.

The extractor hood further comprises a cleaning device 4 for cleaning the fan system 3. The washing device 4 is provided below the rear side of the smoke collecting hood 1. The cleaning device 4 includes a reservoir 41 for storing a cleaning medium, a waste liquid tank 42 for collecting waste liquid, a water inlet pipe 43, and a water outlet pipe 44. The cleaning medium can be water, cleaning agent, etc.

Referring to fig. 2 to 3, the water inlet pipe 43 includes a water inlet pipe input end 431 and a water inlet pipe output end 432, the water inlet pipe input end 431 is communicated with the inner side of the liquid storage box 41, the water inlet pipe output end 432 is disposed at the inner side of the air inlet 32 of the blower system 3, the water outlet pipe 44 includes a water outlet pipe input end 441 and a water outlet pipe output end 442, the water outlet pipe input end 441 is communicated with the oil leakage nozzle 311 at the bottom of the spiral case 31, and the water outlet pipe output end 442 is communicated with the inner side of the waste liquid box 42.

The waste liquid box 42 is disposed above the liquid storage box 41, and the inside of the waste liquid box 42 is communicated with the inside of the liquid storage box 41. The cleaning device 4 further includes a filter screen 45 capable of filtering oil stains in the waste liquid box 42 to obtain clean water, and the filter screen 45 is disposed between the inner side of the waste liquid box 42 and the inner side of the liquid storage box 41, and is used for separating the waste liquid box 42 and the liquid storage box 41.

The smoke collecting cover 1 is provided with a smoke suction port 11, and an oil screen 7 is arranged at the smoke suction port 11. The range hood also comprises a smoke baffle 5 correspondingly arranged below the smoke suction port 11. The smoke barrier 5 is inclined to extend downward from front to back. An oil drain hole 51 for discharging oil stains is formed in the rear side of the smoke barrier 5. The cleaning device 4 further comprises an oil cup 46 for collecting oil stains on the smoke baffle 5, the top of the oil cup 46 is open, and the oil discharge hole 51 is correspondingly arranged above the oil cup 46.

In this embodiment, the liquid storage box 41, the waste liquid box 42, and the oil cup 46 are integrally formed, and the oil cup 46 is disposed at the front side of the waste liquid box 42 and the liquid storage box 41.

When the fan system 3 is in operation, the oil leaking nozzle 311 at the bottom of the spiral case 31 generates positive pressure to press air into the waste liquid box 42 through the water draining pipe 44 under the action of the fan system 3, meanwhile, the water inlet pipe output end 432 of the water inlet pipe 43 is arranged at the air inlet 32, negative pressure is generated under the action of the fan system 3 to suck cleaning water in the liquid storage box 41 into the fan system 3, and the positive pressure and the negative pressure act simultaneously to generate a power source for leading the cleaning water into the fan system 3, so that after stable operation, oil stains generated after cleaning inside the fan system 3 can continuously enter the waste liquid box 42 through the water draining pipe 44, are filtered by the filter screen 45, then are transferred into the liquid storage box 41, and are led to the inside of the fan system 3 through the water inlet pipe 43. Therefore, the interior of the range hood can be automatically cleaned in the operation process of the range hood. In addition, during the operation of the range hood, a small amount of condensed oil will collect on the oil screen 7 around the fan frame 2 and at the smoke suction port 11 and gather at the bottom of the oil screen 7, and then flow onto the smoke baffle 5, and finally enter the oil cup 46.

Under the action of the cleaning device 4, the cleaning degree of the interior of the range hood can be greatly improved, and the cleaning convenience of the range hood is well improved.

Claims

1. The utility model provides a range hood, includes fan system (3) and belt cleaning device (4) that are used for wasing fan system (3), fan system (3) are including spiral case (31), be formed with air intake (32) on spiral case (31), its characterized in that: the cleaning device (4) comprises:

a reservoir (41) for storing a cleaning medium;

the water inlet pipe (43) comprises a water inlet pipe input end (431) and a water inlet pipe output end (432), the water inlet pipe input end (431) is communicated with the inner side of the liquid storage box (41), and the water inlet pipe output end (432) is arranged at an air inlet (32) of the fan system (3) so that negative pressure generated at the air inlet (32) can attract cleaning media in the liquid storage box (41);

the drain pipe (44), the drain pipe (44) includes drain pipe input (441) and drain pipe output (442), the drain pipe input (441) is inboard with the bottom of spiral case (31) communicates, the drain pipe output (442) can communicate with stock solution box (41), and can make the positive pressure that produces at spiral case (31) bottom extrude the cleaning medium in the stock solution box (41).

2. The range hood of claim 1, wherein: the cleaning device (4) further comprises a waste liquid box (42) used for collecting the cleaned waste liquid, the waste liquid box (42) is arranged on the liquid storage box (41), the drain pipe output end (442) is communicated with the inner side of the waste liquid box (42), the inner side of the waste liquid box (42) is communicated with the inner side of the liquid storage box (41) so that the waste liquid and the gas at the bottom of the volute (31) can enter the liquid storage box (41).

3. The range hood of claim 2, wherein: the cleaning device (4) further comprises a filter screen (45) capable of filtering the waste liquid in the waste liquid box (42), wherein the filter screen (45) is arranged between the inner side of the waste liquid box (42) and the inner side of the liquid storage box (41).

4. A range hood according to claim 2 or 3, wherein: the range hood further comprises a smoke collecting hood (1) and a fan frame (2) located above the smoke collecting hood (1), and the fan system (3) is arranged in the fan frame (2).

5. The range hood of claim 4, wherein: be provided with on collection petticoat pipe (1) and inhale smoke mouth (11), smoke mouth (11) department is provided with oil net (7), range hood is still including keeping off cigarette board (5) that correspond the setting in oil net (7) below, belt cleaning device (4) are still including oil cup (46) that are used for collecting the greasy dirt on keeping off cigarette board (5).

6. The range hood of claim 5, wherein: the top of the oil cup (46) is open, an oil discharge hole (51) for discharging oil stains is formed in the smoke baffle (5), and the oil discharge hole (51) is correspondingly formed above the oil cup (46).

7. The range hood of claim 6, wherein: the liquid storage box (41) and the waste liquid box (42) are positioned at the rear side of the oil cup (46).

8. The range hood of claim 7, wherein: the liquid storage box (41), the waste liquid box (42) and the oil cup (46) are integrally formed.