Range hood with double-layer oil smoke filtering structure

By introducing a double-layer oil fume filtration structure into the range hood, and utilizing motor-driven nozzles and mixed liquid atomization technology, the oil fume separation filter can be automatically cleaned, solving the problem of tedious range hood cleaning and improving cleaning efficiency.

CN223807242UActive Publication Date: 2026-01-16HARBIN OUBANG ECONOMIC & TRADE CO LTD
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Patent Information

Application Number
CN202520460061.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-17
Publication Date
2026-01-16
Estimated Expiration
2035-03-17

AI Technical Summary

Technical Problem

Cleaning the oil fume separator filter is tedious, especially the inner side of the filter, which needs to be removed and cleaned, making daily cleaning work inconvenient.

Method used

Design a range hood with a double-layer oil fume filtration structure. The motor drives the hanging rope to expand or retract the spray pipe. Combined with the water inlet pipe, mixing device and compressed air, the mixed liquid is atomized and sprayed onto the oil filter screen. The air extraction device is used to dissolve the oil and collect it into the oil collection box, realizing automatic cleaning.

Benefits of technology

It simplifies the cleaning process of the oil fume separation filter, improves cleaning efficiency, and reduces the tediousness of manual operation.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223807242U_ABST
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Abstract

The utility model relates to the technical field of kitchen appliances, and discloses a range hood with a double-layer oil smoke filtering structure, which comprises an air extractor, a shell is fixedly connected to the lower side of the air extractor, a motor, a mixing device and an air compressor are arranged on the inner top wall of the shell, a water inlet pipe is fixedly arranged on the right side of the shell, and a water outlet pipe is fixedly arranged on the right side of the shell. A spray pipe is fixedly arranged at the output end of the air compressor, a spray head is fixedly arranged at the lower end of the spray pipe, a lifting rope is arranged on the side wall of the spray pipe, an oil filter screen is arranged on the lower portion of the front side of the shell, and an oil collecting box is arranged on the lower side of the oil filter screen. According to the utility model, through the motor, the lifting rope, the water inlet pipe, the mixing device, the air compressor, the air extractor, the nozzle and the oil collecting box, the cleaning of the oil filter screen and the collection of oil stains are realized; therefore, the problem that the cleaning of the oil smoke separation filter screen is complicated, and great inconvenience is brought to the daily cleaning work is solved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to kitchen appliance technical field especially, relates to a kind of range hood with double-layer oil fume filtering structure. BACKGROUND

[0002] Range hood has become the kitchen appliance indispensable in modern family cooking, it is used to suck and discharge the oil fume generated in cooking process, to maintain relatively comfortable cooking environment.

[0003] Range hood is used, and the negative pressure made by fan makes oil fume be sucked into shell before diffusion, and when passing through oil fume separation filter screen, high-temperature oil vapor is liquefied into oil drops by cooling and is adjusted into oil box, however, because food oil has certain viscosity, and oil mist is liquefied small part when passing through filter screen below, therefore, it is attached to the upper and lower bottom two sides of filter screen and the bottom of separation plate, forms oil layer, affects the generation of fan negative pressure, and affects the adsorption efficiency of oil fume, after long time use, oil layer is thick, difficult to clean.

[0004] At present, oil fume separation filter screen of range hood is cleaned more complicated, especially the inside of oil screen, needs to be removed after cleaning, which brings great inconvenience to daily cleaning work. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a kind of range hood with double-layer oil fume filtering structure, to solve the problem that oil fume separation filter screen is cleaned more complicated, and brings great inconvenience to daily cleaning work.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: a kind of range hood with double-layer oil fume filtering structure, including air suction device, the lower side of the air suction device is fixedly connected with shell, the inner top wall of the shell is provided with motor, mixing device and compressed air machine, the right side of the shell is fixedly provided with water inlet pipe, one end of the water inlet pipe is fixedly arranged on mixing device, the right side of the mixing device is fixedly arranged on the left side of compressed air machine, the output end of the compressed air machine is fixedly provided with spray pipe, the lower end of the spray pipe is fixedly provided with spray head, the side wall of the spray pipe is provided with sling, the upper end of the sling is fixedly provided on the output end of motor, the spray pipe is arranged on the upper portion of the front side of shell, the sling passes through shell, the front lower portion of the shell is provided with filter screen, the lower side of the filter screen is provided with oil collecting box.

[0007] Preferably, the mixing device includes liquid storage box, two solenoid valves connected on the side of the liquid storage box, one solenoid valve of the mixing device is fixedly arranged on the input end of compressed air machine, and the side wall of the liquid storage box of the mixing device passes through the upper side of the shell.

[0008] Preferably, one end of the water inlet pipe is fixedly provided with a connecting pipe one, and one end of the connecting pipe one is fixedly arranged on the other electromagnetic valve of the mixing device.

[0009] Preferably, the inside of the shell is provided with a rotating rod, the outer wall of the rotating rod is rotationally connected with a rotating wheel, the outer wall of the rotating wheel is attached to the side wall of the spray pipe, and the lower side of the oil collecting box is fixedly provided with a blow-off pipe.

[0010] Preferably, the front side of the shell is provided with a hanging rod, the hanging ropes are two, the lower ends of the two hanging ropes are fixedly connected to the two ends of the hanging rod respectively, and the side wall of the hanging rod is fixedly connected to the side wall of the spray pipe.

[0011] Preferably, the spray pipe is a plurality of, and the plurality of spray pipes are uniformly distributed on the hanging rod.

[0012] Preferably, the output end of the compressed air machine is fixedly provided with a connecting pipe two, and the upper ends of the plurality of spray pipes are fixedly arranged on the side wall of the connecting pipe two.

[0013] Preferably, the inside top wall of the shell is provided with a controller, and the air extractor, the mixing device, the compressed air machine and the motor are electrically connected with the controller.

[0014] The utility model has the advantages of the following:

[0015] 1. In the utility model, the motor output end drives the hanging rope to expand or contract, thereby realizing the lifting function of the spray pipe; the water inlet pipe, the mixing device and the compressed air machine gasify the mixed solution and enter the spray pipe; then the spray head sprays onto the oil filter screen; the air extractor prevents the atomized mixed solution sprayed by the spray head from falling onto the cooking bench; and the oil collecting box collects the dissolved oil stains on the oil filter screen; thereby solving the problem that the oil fume separation filter screen is relatively complicated to clean, which brings great inconvenience to daily cleaning work.

[0016] 2. In the utility model, the device is supplied with water through the water inlet pipe, the water source and the cleaning solution are mixed through the electromagnetic valve and the liquid storage box of the mixing device, and the water source is controlled to enter and exit; the blow-off pipe discharges the oil stains; thereby helping to realize the cleaning and blow-off functions of the device. DRAWINGS

[0017] Figure 1 It is a three-dimensional structure schematic view of the oil fume exhauster with the double-layer oil fume filter structure;

[0018] Figure 2 It is a shell internal structure schematic view of the oil fume exhauster with the double-layer oil fume filter structure;

[0019] Figure 3 It isFigure 2 Enlarged view of the middle A;

[0020] Figure 4 The structure diagram of the runner of the oil fume machine with the double-layer oil fume filtering structure is provided in the utility model;

[0021] Figure 5 The internal structure diagram of the mixing device of the oil fume machine with the double-layer oil fume filtering structure is provided in the utility model.

[0022] Legend:

[0023] 1, air suction device; 2, mixing device; 3, water inlet pipe; 4, hanging rod; 5, spray head; 6, blow-off pipe; 7, oil filter screen; 8, spray pipe; 9, oil collecting box; 10, runner; 11, shell; 12, connecting pipe one; 13, compressed air machine; 14, controller; 15, connecting pipe two; 16, motor; 17, hanging rope; 18, rotating rod. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the specification of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] With reference to Figure 1 , Figure 2 and Figure 3 , the utility model provides an embodiment: an oil fume machine with double-layer oil fume filtering structure, including air suction device 1, the downside of air suction device 1 is fixedly connected with shell 11, the inner top wall of shell 11 is provided with motor 16, mixing device 2 and compressed air machine 13, the right side of shell 11 is fixedly provided with water inlet pipe 3, one end of water inlet pipe 3 is fixedly arranged on mixing device 2, the right side of mixing device 2 is fixedly arranged on the left side of compressed air machine 13, the output end of compressed air machine 13 is fixedly provided with spray pipe 8, the lower end of spray pipe 8 is fixedly provided with spray head 5, the side wall of spray pipe 8 is provided with hanging rope 17, the upper end of hanging rope 17 is fixedly arranged on the output end of motor 16, spray pipe 8 is arranged on the upper portion of the front side of shell 11, hanging rope 17 passes through shell 11, the front side lower portion of shell 11 is provided with oil filter screen 7, the downside of oil filter screen 7 is provided with oil collecting box 9.

[0026] In the embodiment, the oil fume machine with double-layer oil fume filtering structure is provided in the utility model, Figure 1The front and back of the right and left are the direction. The mixing device 2 is used for storing cleaning liquid and controlling the inlet and outlet of water source, which is prior art; the air extraction device 1 is used for extracting flue gas, which is prior art; specifically, when the oil filter screen 7 needs to be cleaned, the hanging rope 17 is expanded through the driving of the output end of the motor 16, and the spray pipe 8 falls down under the action of gravity; when the spray pipe 8 falls to the front of the upper part of the oil filter screen 7, the water source enters the mixing device 2 through the water inlet pipe 3, and the water and the cleaning liquid in the mixing device 2 enter the compressed air machine 13; the mixed liquid is gasified through the compressed air machine 13 and enters the spray pipe 8, and then is sprayed to the oil filter screen 7 through the spray head 5; at this time, the air extraction device 1 starts to extract air, so that the atomized mixed liquid sprayed by the spray head 5 does not fall to the cooking table, and the oil stain on the surface of the oil filter screen 7 is dissolved by the mixed liquid and slides along the oil filter screen 7 to the oil collecting box 9; thereby solving the problem that the oil fume separation filter screen is relatively complicated to clean, which brings great inconvenience to the daily cleaning work.

[0027] Referring to Figure 1 and Figure 5 , the mixing device 2 includes a liquid storage box and two electromagnetic valves connected on both sides of the liquid storage box; one electromagnetic valve of the mixing device 2 is fixedly arranged on the input end of the compressed air machine 13, and the side wall of the liquid storage box of the mixing device 2 penetrates through the upper side of the shell 11.

[0028] Specifically, when the oil filter screen 7 needs to be cleaned, the cleaning liquid is put into the liquid storage box of the mixing device 2, the water source enters the liquid storage box of the mixing device 2 and mixes with the cleaning liquid in the liquid storage box, and then the electromagnetic valve connected with the compressed air machine 13 is opened, so that the mixed liquid enters the compressed air machine 13 for atomization, thereby helping to realize the atomization function of the device.

[0029] Referring to Figure 2 and Figure 5 , one end of the water inlet pipe 3 is fixedly provided with a connecting pipe one 12, and one end of the connecting pipe one 12 is fixedly arranged on the other electromagnetic valve of the mixing device 2.

[0030] Specifically, the water source enters the connecting pipe one 12 through the water inlet pipe 3, and then the electromagnetic valve connected with the connecting pipe one 12 is opened, so that the water source enters the liquid storage box of the mixing device 2; after the water source and the cleaning liquid are mixed, the electromagnetic valve of the connecting pipe one 12 is closed, thereby avoiding the cleaning liquid flowing back to the water inlet pipe 3 and polluting the water source.

[0031] Referring to Figure 1 and Figure 4 , the inside of the shell 11 is provided with a rotating rod 18, the outer wall of the rotating rod 18 is rotationally connected with a rotating wheel 10, the outer wall of the rotating wheel 10 is attached to the side wall of the spray pipe 8, and the lower side of the oil collecting box 9 is fixedly provided with a sewage pipe 6.

[0032] Specifically, the spray pipe 8 attached to the rotating wheel 10 has a telescopic function, which is the prior art; the oil stains in the oil collecting box 9 are discharged through the exhaust pipe 6; through the compression or stretching of the spray pipe 8 attached to the rotating wheel 10, the lifting function of the spray pipe 8 is achieved.

[0033] With reference to Figure 1 , the front side of the shell 11 is provided with a boom 4, and the two lower ends of the two lifting ropes 17 are fixedly connected to the two ends of the boom 4, and the side wall of the boom 4 is fixedly connected to the side wall of the spray pipe 8.

[0034] Specifically, through the driving of the output end of the motor 16, the lifting ropes 17 are unfolded, and under the action of gravity, the boom 4 and the spray pipe 8 are lowered; after cleaning is completed, the two motors 16 are simultaneously driven, so that the lifting ropes 17 at the two ends of the boom 4 are simultaneously retracted, thereby driving the boom 4 to rise, so that the spray pipe 8 rises; thereby improving the stability of the lifting of the spray pipe 8.

[0035] With reference to Figure 1 , the spray pipe 8 has a plurality of spray pipes 8, and the plurality of spray pipes 8 are evenly distributed on the boom 4.

[0036] Specifically, through the arrangement of the plurality of spray pipes 8, the working efficiency of the device for cleaning the oil filter screen 7 is improved.

[0037] With reference to Figure 2 and Figure 4 , the output end of the compressed air machine 13 is fixedly provided with a connecting pipe two 15, and the upper ends of the plurality of spray pipes 8 are fixedly arranged on the side wall of the connecting pipe two 15.

[0038] Specifically, the atomized mixed liquid enters the plurality of spray pipes 8 through the connecting pipe two 15, and is sprayed out through the spray head 5, thereby helping to improve the cleaning efficiency of the device.

[0039] With reference to Figure 1 , Figure 2 and Figure 3 , the inner top wall of the shell 11 is provided with a controller 14, and the air extractor 1, the mixing device 2, the compressed air machine 13, and the motor 16 are electrically connected to the controller 14.

[0040] Specifically, when the device is used, the motor 16 is driven by the controller 14 to realize the lifting of the spray pipe 8; the controller 14 controls the mixing device 2 to realize the control of the water inlet and outlet; the controller 14 controls the compressed air machine 13 to atomize the mixed liquid; and the power of the air extractor 1 is controlled, so that the atomized mixed liquid does not fall on the cooking surface; thereby realizing the automatic cleaning function of the device for cleaning the oil filter screen 7.

[0041] Working principle: when the filter screen 7 needs to be cleaned, the controller 14 controls the motor 16 to drive, so that the lifting rope 17 is unfolded, under the action of gravity, the boom 4 and the spray pipe 8 are lowered to the front position above the filter screen 7; the controller 14 controls the electromagnetic valve of the mixing device 2 to open, so that the water source enters into the connecting pipe one 12 through the water inlet pipe 3, and then enters into the liquid storage box of the mixing device 2 and mixes with the cleaning liquid; the controller 14 controls the compressed air machine 13 to start, and atomizes the mixed liquid; the atomized mixed liquid enters into the spray pipe 8 through the connecting pipe two 15, and is sprayed to the filter screen 7 through the spray head 5; at the same time, the controller 14 controls the air extractor 1 to start, and adjusts to the appropriate power, so that the atomized mixed liquid does not fall on the cooking surface; the oil stains enter into the oil collecting box 9 along the filter screen 7, and are discharged through the oil discharge pipe 6.

[0042] When the cleaning is completed, the controller 14 controls the motor 16 to start, and the lifting rope 17 is retracted, so as to drive the boom 4 to rise, so that the spray pipe 8 rises and returns to the original position; thereby solving the problem that the oil fume separation filter screen is difficult to clean, and bringing great inconvenience to the daily cleaning work.

[0043] Finally, it should be pointed out that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. made within the spirit and principles of the utility model, should be contained in the protection scope of the utility model.

Claims

1. A range hood having a double-layer oil fume filtering structure, comprising a suction device (1), characterized in that: The lower side of the air extraction device (1) is fixedly connected with a shell (11), a motor (16), a mixing device (2) and a compressed air machine (13) are arranged on the inner top wall of the shell (11), a water inlet pipe (3) is fixedly arranged on the right side of the shell (11), one end of the water inlet pipe (3) is fixedly arranged on the mixing device (2), the right side of the mixing device (2) is fixedly arranged on the left side of the compressed air machine (13), an output end of the compressed air machine (13) is fixedly provided with a spray pipe (8), a lower end of the spray pipe (8) is fixedly provided with a spray head (5), a side wall of the spray pipe (8) is provided with a lifting rope (17), an upper end of the lifting rope (17) is fixedly arranged on the output end of the motor (16), the spray pipe (8) is arranged on the upper part of the front side of the shell (11), the lifting rope (17) passes through the shell (11), an oil filter screen (7) is arranged on the front lower part of the shell (11), and an oil collecting box (9) is arranged on the lower side of the oil filter screen (7).

2. The range hood with double-layer oil fume filtering structure according to claim 1, characterized in that: The mixing device (2) comprises a liquid storage box and two electromagnetic valves connected on the two sides of the liquid storage box, one electromagnetic valve of the mixing device (2) is fixedly arranged on the input end of the compressed air machine (13), and the side wall of the liquid storage box of the mixing device (2) passes through the upper side of the shell (11).

3. The range hood with double-layer oil fume filtering structure according to claim 1, characterized in that: One end of the water inlet pipe (3) is fixedly provided with a connecting pipe I (12), and one end of the connecting pipe I (12) is fixedly arranged on the other electromagnetic valve of the mixing device (2).

4. The range hood with double-layer oil fume filtering structure according to claim 1, characterized in that: The inside of the shell (11) is provided with a rotating rod (18), the outer wall of the rotating rod (18) is rotatably connected with a rotating wheel (10), the outer wall of the rotating wheel (10) is attached to the side wall of the spray pipe (8), and the lower side of the oil collecting box (9) is fixedly provided with a blowdown pipe (6).

5. The range hood with double-layer oil fume filtering structure according to claim 1, characterized in that: The front side of the shell (11) is provided with a suspender (4), the lifting rope (17) has two, the lower ends of the two lifting ropes (17) are fixedly connected to the two ends of the suspender (4), and the side wall of the suspender (4) is fixedly connected to the side wall of the spray pipe (8).

6. The range hood with double-layer oil fume filtering structure according to claim 1, characterized in that: The spray pipe (8) has a plurality of, and the plurality of spray pipes (8) are uniformly distributed on the suspender (4).

7. The range hood with double-layer oil fume filtering structure according to claim 1, characterized in that: The output end of the compressed air machine (13) is fixedly provided with a connecting pipe II (15), and the upper ends of the plurality of spray pipes (8) are fixedly arranged on the side wall of the connecting pipe II (15).

8. The range hood with double-layer oil fume filtering structure according to claim 1, characterized in that: A controller (14) is arranged on the inner top wall of the shell (11), and the air extraction device (1), the mixing device (2), the compressed air machine (13) and the motor (16) are electrically connected with the controller (14).