Range hood with annular auxiliary air duct

By designing an annular auxiliary air duct and adjustable fume suction port on the range hood, the problem of poor oil fume absorption of electric frying pan is solved, flexible fume control and multi-purpose connection are achieved, and the applicability of the range hood is improved.

CN223050089UActive Publication Date: 2025-07-01GUANGDONG WULINFENG INTELLIGENT ELECTRICAL APPLIANCES CO LTD
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Patent Information

Application Number
CN202422118083.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-30
Publication Date
2025-07-01
Estimated Expiration
2034-08-30

AI Technical Summary

Technical Problem

When using electric woks, existing range hoods cannot effectively absorb oil fume, especially when the gas stove is offset or the liquefied gas tank is airless, the oil fume effect is not good.

Method used

A range hood with annular auxiliary air duct is designed. Annular auxiliary air ducts are installed on both sides of the body. A circular groove and installation hole are provided on the top surface, and a slidable cover plate and electric push rod are provided on the bottom surface. The opening and closing of the oil fume port is controlled by adjusting the cover plate and electric valve to enhance the oil fume effect.

Benefits of technology

When using an electric wok, the annular auxiliary air duct can effectively absorb oil smoke. When the gas stove is offset or the liquefied gas tank is airless, it can maintain good oil smoke effect, and is convenient for connection and installation of various specifications.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a range hood with annular auxiliary air ducts, which relates to the technical field of range hoods and comprises a machine body, the annular auxiliary air ducts are mounted on two sides of the machine body, a circular groove is arranged at the smoke outlet end of the top surface of the machine body, and the annular auxiliary air ducts are arranged in the circular groove. A plurality of annularly distributed mounting holes are formed in the top surface of the circular groove; the utility model discloses a range hood with annular auxiliary air ducts, which is characterized in that the annular auxiliary air ducts are arranged on two sides of a machine body and can be used for extracting oil smoke of an electric frying pan, and meanwhile, when the position of a gas stove deviates, the annular auxiliary air ducts can also play a good role in extracting the oil smoke. The oil fume suction port which is far away from the frying pan can be closed, the power of the range hood can be reduced at the moment, the range hood still has a good oil fume suction effect, meanwhile, when the annular auxiliary air duct is used, the suction force of the annular auxiliary air duct can be effectively increased, and the oil fume suction effect is good.
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Description

Technical Field

[0001] The utility model relates to the technical field of range hoods, in particular to a range hood with an annular auxiliary air duct. Background Art

[0002] A range hood is a kitchen appliance that purifies the kitchen environment. It is wall-mounted and located directly above the gas stove. It can quickly extract the fumes produced by cooking, filter them, and then discharge them outdoors.

[0003] Gas stoves on the market usually have two fire outlets and can use two woks at the same time. Therefore, two sets of oil fume suction ports are usually set at the bottom of the range hood. In rural areas, liquefied gas is usually used, and natural gas is not commonly used. Gas stoves are usually connected to liquefied gas tanks. When the liquefied gas tank is out of gas, electric woks are usually used for emergency. However, electric woks are not convenient to place on gas stoves and can only be placed next to the gas stoves. When cooking, the range hood and the electric wok are staggered, which is not convenient for absorbing oil fume. Utility Model Content

[0004] The utility model provides a range hood with an annular auxiliary air duct, which has the advantage of being used for absorbing oil smoke from electric frying pans and solves the problems raised in the background technology.

[0005] In order to solve the defect that the existing range hood and electric frying pan are staggered and it is not convenient to absorb oil smoke, the utility model provides the following technical scheme: a range hood with an annular auxiliary air duct comprises a body, annular auxiliary air ducts are installed on both sides of the body, a circular groove is provided at the end of the smoke exhaust port on the top surface of the body, a plurality of annularly distributed mounting holes are provided on the top surface of the circular groove, a plurality of circumferentially distributed fastening mechanisms are provided on the top surface of the body, an oil smoke suction chamber is contained in the body, two groups of oil smoke suction ports are provided on the bottom surface of the body, each group of the oil smoke suction ports has five oil smoke suction ports, the oil smoke suction ports are communicated with the oil smoke suction chamber, two cover plates are slidably connected to the bottom surface of the body, a plurality of threaded openings are provided at the bottom end of each of the cover plates, a round cover is threadedly connected to each of the threaded openings, a pair of electric push rods are fixedly installed on the rear inner wall of the body, and the front end output end of the electric push rods is fixedly connected to the rear end of the cover plate.

[0006] As a preferred technical solution of the utility model, the annular auxiliary air duct includes an annular pipe, and a plurality of fume suction holes are provided on the bottom surface and the inner wall of the annular pipe. A connecting seat is fixedly connected to one end of the annular pipe close to the machine body, and an electric valve is installed on the top surface of the connecting seat.

[0007] As a preferred technical solution of the present utility model, the connecting seat is installed on the side wall of the machine body by screws. The connecting seat contains a channel communicating with the annular pipeline, and the channel communicates with the oil fume suction cavity.

[0008] As a preferred technical solution of the present utility model, a plastic corrugated pipe is sleeved on the output end of the electric push rod. The front end of the plastic corrugated pipe is fixedly connected to the rear end of the cover plate, and the rear end of the plastic corrugated pipe is fixedly connected to the front end housing of the electric push rod.

[0009] As a preferred technical solution of the present utility model, the number of the threaded ports is the same as the number of the oil fume suction ports. After the cover plate moves forward, the threaded ports and the oil fume suction ports are on the same axis.

[0010] As a preferred technical solution of the present utility model, the fastening mechanism includes a sliding seat slidably connected to the top surface of the machine body. A movable strip is movably connected to the top surface of the sliding seat, and a fastening bolt is threadedly connected to the top surface of the movable strip.

[0011] As a preferred technical solution of the present utility model, an internal hexagonal groove is provided on the top surface of the fastening bolt, and the length of the fastening bolt is greater than the depth of the circular groove.

[0012] Compared with the prior art, the present utility model provides a range hood with an annular auxiliary air duct, which has the following beneficial effects:

[0013] 1. For the range hood with an annular auxiliary air duct, annular auxiliary air ducts are provided on both sides of the machine body, which can be used for oil fume extraction of an electric wok. At the same time, when the position of the gas stove is offset, the provided annular auxiliary air duct can also play a good role in oil fume extraction;

[0014] 2. For the range hood with an annular auxiliary air duct, two sets of oil fume suction ports are provided, and two sets of cover plates with threaded ports and round covers are matched to realize the opening and closing of the two sets of oil fume suction ports. When using one wok, the oil fume suction port far from the wok can be closed. At this time, the power of the range hood can be reduced, and it still has a good oil fume extraction effect. At the same time, when using the annular auxiliary air duct, the suction force of the annular auxiliary air duct can be effectively increased, and the oil fume extraction effect is good;

[0015] 3. For the range hood with an annular auxiliary air duct, a circular groove with an installation hole is provided, which can be used for the fixed connection of the matched flange (connected to the exhaust pipe). The provided fastening mechanism can be used for various specifications of rings or flanges, and the connection range is wide. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the front three-dimensional view of the present utility model;

[0017] Figure 2 is the upward perspective view of the present utility model;

[0018] Figure 3 For the present utility model Figure 1 is the enlarged view of A in it;

[0019] Figure 4 For the present utility model Figure 1 is the enlarged view of B in it.

[0020] In the figure:

[0021] 10, body; 20, annular auxiliary air duct; 21, annular pipe; 22, oil fume suction hole; 23, connecting seat; 24, electric valve; 30, circular groove; 40, mounting hole; 50, fastening mechanism; 51, sliding seat; 52, movable strip; 53, fastening bolt; 60, oil fume suction port; 70, cover plate; 80, threaded port; 90, round cover; 100, electric push rod; 110, plastic corrugated pipe. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1-4 , the present utility model discloses an oil fume extractor with an annular auxiliary air duct, including a body 10. Annular auxiliary air ducts 20 are installed on both sides of the body 10. A circular groove 30 is opened at the smoke exhaust port end of the top surface of the body 10. A plurality of annularly distributed mounting holes 40 are opened on the top surface of the circular groove 30. A plurality of circumferentially distributed fastening mechanisms 50 are opened on the top surface of the body 10. An oil fume suction cavity is contained in the body 10. Two groups of oil fume suction ports 60 are opened on the bottom surface of the body 10. The number of each group of oil fume suction ports 60 is five. The oil fume suction ports 60 are communicated with the oil fume suction cavity. Two cover plates 70 are slidably connected to the bottom surface of the body 10. A plurality of threaded ports 80 are opened at the bottom end of each cover plate 70. Each threaded port 80 is threadedly connected with a round cover 90. A pair of electric push rods 100 are fixedly installed on the rear inner wall of the body 10. The front output end of the electric push rod 100 is fixedly connected to the rear end of the cover plate 70;

[0024] It can realize the opening and closing of two sets of oil fume suction ports 60. When using a single wok, the oil fume suction port 60 that is farther away from the wok can be closed. At this time, the power of the range hood can be reduced, and it still has a good oil fume suction effect. At the same time, when using the annular auxiliary air duct 20, by closing the oil fume suction port 60, the suction force of the annular auxiliary air duct 20 can be effectively increased, and the oil fume suction effect is good.

[0025] Specifically, the annular auxiliary air duct 20 includes an annular pipe 21. A plurality of oil fume suction holes 22 are opened on the bottom surface and the inner wall of the annular pipe 21. One end of the annular pipe 21 close to the body 10 is fixedly connected with a connecting seat 23. An electric valve 24 is installed on the top surface of the connecting seat 23. The connecting seat 23 is screwed to the side wall of the body 10. A passage communicating with the annular pipe 21 is contained in the connecting seat 23, and the passage communicates with the oil fume suction cavity.

[0026] In this implementation scheme, during transportation, it is in a disassembled state for easy transportation. When in use, it can be fixedly installed. When the liquefied gas tank is empty, an electric wok can be used for cooking at this time. At this time, the annular auxiliary air duct 20 can be used to absorb oil fume. At the same time, when replacing a new cabinet operating table, there is a probability that the gas stove cannot be accurately located directly below the range hood. If there is a large deviation, the annular auxiliary air duct 20 can also play a good role in absorbing oil fume at this time, and there is no need to reinstall the entire range hood.

[0027] Specifically, a plastic corrugated pipe 110 is sleeved on the output end of the electric push rod 100. The front end of the plastic corrugated pipe 110 is fixedly connected to the rear end of the cover plate 70, and the rear end of the plastic corrugated pipe 110 is fixedly connected to the front end housing of the electric push rod 100.

[0028] In this implementation scheme, it can prevent the oil and dirt in the oil fume from contacting the output end of the electric push rod 100, and can improve the operating stability of the electric push rod 100.

[0029] Specifically, the number of threaded ports 80 is the same as the number of oil fume suction ports 60. After the cover plate 70 moves forward, the threaded ports 80 and the oil fume suction ports 60 are coaxial.

[0030] In this implementation scheme, when the cover plate 70 moves forward, since the threaded ports 80 and the oil fume suction ports 60 are coaxial, after removing one or more round covers 90, the number of opened oil fume suction ports 60 can be effectively adjusted to facilitate different actual needs.

[0031] Specifically, the fastening mechanism 50 includes a sliding seat 51 slidably connected to the top surface of the body 10. A movable strip 52 is movably connected to the top surface of the sliding seat 51. A fastening bolt 53 is threadedly connected to the top surface of the movable strip 52. An internal hexagonal groove is opened on the top surface of the fastening bolt 53, and the length of the fastening bolt 53 is greater than the depth of the round groove 30.

[0032] In this implementation scheme, it can be used for rings or flanges of various specifications, which can broaden the connection range of the smoke exhaust pipe. The provided hexagonal socket can be used in cooperation with a hexagonal wrench, facilitating fastening and enhancing the fastening force.

[0033] The working principle and usage process of this utility model are as follows:

[0034] When there is liquefied gas in the liquefied gas tank, the gas stove can be used for cooking. If both woks on the gas stove are in use, at this time, the positions of the two covers 70 are both at the rear, the entire smoke suction openings 60 are opened, and at the same time, the electric valve 24 is in the closed state. If only one wok is used, then the electric push rod 100 far away from this wok is activated to drive the cover 70 to move forward, which can play an energy-saving role.

[0035] When there is no liquefied gas in the liquefied gas tank, an electric wok can be used for emergency at this time. Since it is not convenient to place the electric wok on the gas stove, it can only be placed beside the gas stove. At this time, the two covers 70 can be activated to move forward, which can close all the smoke suction openings 60, and the electric valve 24 is opened. At this time, only the annular auxiliary air duct 20 directly above the electric wok is opened, enabling the absorption of the smoke from the electric wok.

[0036] When the position of the gas stove is offset, one wok is located below another group of smoke suction openings 60 or directly below the position between the two groups of smoke suction openings 60, and the other wok is located on one side below the body 10 and directly below the annular auxiliary air duct 20 or directly below the position between the annular auxiliary air duct 20 and the body 10. During use, the cover 70 far away from the other wok can be moved forward, and the number of threaded openings 80 on this cover 70 can be opened according to the degree of offset.

[0037] It should be noted that in this article, terms such as "including", "comprising" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements but also includes other elements not explicitly listed, or elements inherent to such process, method, article or device. Without further limitations, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0038] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A range hood with an annular auxiliary air duct, characterized in that: The invention comprises a machine body (10), wherein both sides of the machine body (10) are provided with annular auxiliary air ducts (20), a circular groove (30) is provided at the end of the smoke exhaust port on the top surface of the machine body (10), a plurality of mounting holes (40) distributed in an annular pattern are provided on the top surface of the circular groove (30), a plurality of fastening mechanisms (50) distributed in a circumferential pattern are provided on the top surface of the machine body (10), a fume suction chamber is contained in the machine body (10), and two groups of fume suction ports (60) are provided on the bottom surface of the machine body (10), and each group of the fume suction ports ( The number of the oil fume suction ports (60) is five, the oil fume suction ports (60) are connected to the oil fume suction chamber, the bottom surface of the machine body (10) is slidably connected to two cover plates (70), the bottom end of each of the cover plates (70) is provided with a plurality of threaded openings (80), each of the threaded openings (80) is threadedly connected to a round cover (90), a pair of electric push rods (100) are fixedly mounted on the rear inner wall of the machine body (10), and the front output end of the electric push rod (100) is fixedly connected to the rear end of the cover plate (70).

2. The range hood with an annular auxiliary air duct according to claim 1, characterized in that: The annular auxiliary air duct (20) comprises an annular pipe (21), the bottom surface and inner wall of the annular pipe (21) are provided with a plurality of oil fume suction holes (22), one end of the annular pipe (21) close to the machine body (10) is fixedly connected to a connecting seat (23), and the top surface of the connecting seat (23) is installed with an electric valve (24).

3. The range hood with an annular auxiliary air duct according to claim 2, characterized in that: The connecting seat (23) is screwed onto the side wall of the machine body (10), and the connecting seat (23) contains a channel connected to the annular pipe (21), and the channel is connected to the oil fume suction chamber.

4. The range hood with an annular auxiliary air duct according to claim 1, characterized in that: The output end of the electric push rod (100) is sleeved with a plastic bellows (110), the front end of the plastic bellows (110) is fixedly connected to the rear end of the cover plate (70), and the rear end of the plastic bellows (110) is fixedly connected to the front end housing of the electric push rod (100).

5. The range hood with an annular auxiliary air duct according to claim 1, characterized in that: The number of the threaded openings (80) is the same as the number of the oil fume suction openings (60); after the cover plate (70) moves forward, the threaded openings (80) and the oil fume suction openings (60) are coaxial.

6. The range hood with an annular auxiliary air duct according to claim 1, characterized in that: The fastening mechanism (50) comprises a sliding seat (51) slidably connected to the top surface of the machine body (10); the top surface of the sliding seat (51) is movably connected to a movable bar (52); and the top surface of the movable bar (52) is threadedly connected to a fastening bolt (53).

7. The range hood with an annular auxiliary air duct according to claim 6, characterized in that: A hexagonal groove is formed on the top surface of the fastening bolt (53), and the length of the fastening bolt (53) is greater than the depth of the circular groove (30).