Range hood with good oil smoke suction effect

Abstract

The utility model provides a range hood with a good oil smoke suction effect. The range hood comprises a shell, a baffle and a driving assembly, an oil fume inlet with an opening in the front side is formed in the rear part of the shell and is positioned at the lower edge of the shell; a flow guide plate is arranged on the inner side of the oil smoke inlet and inclines forwards from top to bottom; the baffle is arranged on the front side of the oil fume inlet and is rotationally connected with the shell; the driving assembly is fixed in the shell, and the baffle is in transmission connection with the driving assembly; when the driving assembly drives the baffle to rotate relative to the shell so that the baffle can unblock the opening in the front side of the oil smoke inlet, an included angle alpha is formed between the baffle and the flow guide plate, and a negative pressure smoke suction area is formed between the baffle and the flow guide plate. The included angle alpha is 30-35 degrees; the range hood can reliably and effectively suck oil fume in a concentrated slow rising period, so that the oil fume can be prevented from entering a diffusion period and diffusing, and further the oil fume can be prevented from being sucked by a human body and polluting an indoor environment.

Description

Technical Field

[0001] The utility model relates to the technical field of range hoods, and in particular to a range hood with good oil fume suction effect. Background Art

[0002] A range hood is a device for extracting oil smoke generated when cooking food. The range hoods currently on the market include a shell, a baffle and a drive assembly; a fume inlet with a front opening is provided at the rear of the shell, and the fume inlet is located at the lower edge of the shell; a guide plate is provided on the inner side of the fume inlet, and the guide plate is inclined from top to bottom toward the front side; the baffle is provided at the front side of the fume inlet, and the baffle is rotatably connected to the shell; the drive assembly is fixed inside the shell, and the baffle is transmission-connected to the drive assembly, and the drive assembly is used to drive the baffle to rotate relative to the shell so that the baffle covers the opening on the front side of the fume inlet or releases the opening on the front side of the fume inlet. in addition, when people cook food, the generation and diffusion of oil smoke are mainly divided into three stages: the first stage is the high-speed concentrated rising period, from the beginning of generation in the pot to the interval within 200mm above the pot surface; the second stage is the concentrated slow rising period, within the interval of 200mm-400mm above the pot surface; the third stage is the diffusion period, more than 400mm away from the pot surface; however, in the current range hood structure on the market, the range hood cannot reliably absorb the oil smoke in the concentrated slow rising period, which will cause the oil smoke to enter the diffusion period and spread, which will cause the oil smoke to be inhaled by the human body and pollute the indoor environment. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a range hood with good oil fume suction effect, which can reliably and effectively absorb the oil fume in the concentrated slow rising period, thereby preventing the oil fume from entering the diffusion period and spreading, and further preventing the oil fume from being inhaled by the human body and polluting the indoor environment.

[0004] The utility model provides a range hood with good oil fume suction effect, comprising a shell, a baffle and a driving assembly; a front-opening oil fume inlet is arranged at the rear of the shell, and the oil fume inlet is located at the lower edge of the shell; a guide plate is arranged on the inner side of the oil fume inlet, and the guide plate is inclined from top to bottom toward the front side; the baffle is arranged on the front side of the oil fume inlet, and the baffle is rotatably connected to the shell; the driving assembly is fixed inside the shell, the baffle is transmission-connected to the driving assembly, and the driving assembly is used to drive the baffle to rotate relative to the shell so that the baffle covers the opening on the front side of the oil fume inlet or releases the covering of the opening on the front side of the oil fume inlet; when the driving assembly drives the baffle to rotate relative to the shell so that the baffle releases the covering of the opening on the front side of the oil fume inlet, an angle α is formed between the baffle and the guide plate, and a negative pressure smoking area is formed between the baffle and the guide plate; the angle α is 30-35 degrees.

[0005] The utility model controls the angle α formed between the baffle and the guide plate, so that a strong negative pressure smoking area can be formed between the baffle and the guide plate. The negative pressure smoking area can reliably and effectively absorb the oil smoke in the concentrated slow rising period, thereby preventing the oil smoke from entering the diffusion period and spreading, and further preventing the oil smoke from being inhaled by the human body and polluting the indoor environment.

[0006] In a possible embodiment, the angle α is 32.4 degrees; by adopting this structure, the negative pressure smoking area formed between the baffle and the guide plate can more reliably concentrate and absorb the oil smoke, that is, it can further reliably control the rising and diffusion of the oil smoke, thereby effectively preventing the oil smoke from being inhaled by the human body and improving the indoor environment.

[0007] In a possible embodiment, a rotating arm is fixed to the rear sides of the left and right ends of the baffle, and the end of the rotating arm away from the baffle movably penetrates the shell and extends into the shell and is rotatably connected to the shell; by adopting this structure, the baffle can be reliably rotatably connected to the shell through the rotating arm.

[0008] In a possible embodiment, the driving assembly includes an electric actuator and a connecting rod, the electric actuator is fixed on the inner side of the shell, one end of the connecting rod is rotationally connected to the swing rod of the electric actuator, and the other end of the connecting rod is rotationally connected to the middle part of one of the rotating arms; by adopting this driving assembly, when the swing rod of the electric actuator rotates toward one side, the rotating arm can be driven to rotate under the action of the connecting rod so that the baffle rotates toward the side of the oil fume inlet and blocks the opening of the oil fume inlet; when the swing rod of the electric actuator rotates toward the other side, the rotating arm can be driven to rotate under the action of the connecting rod so that the baffle rotates toward the side away from the oil fume inlet and releases the obstruction of the opening of the oil fume inlet; in addition, the driving element has the advantages of simple structure and convenient control of the rotation of the baffle.

[0009] In a possible embodiment, the guide plate is detachably connected to the shell; the upper end of the guide plate abuts against the rear inner wall of the oil fume inlet, and the lower end of the guide plate is provided with a first folded edge extending from front to rear, and the first folded edge abuts against the inner bottom of the oil fume inlet, and the guide plate is fixed to the shell by at least one screw, and the screw portion of each screw passes through the bottom of the shell and is threadedly connected to the first folded edge; by adopting this structure, the guide plate can be disassembled, thereby facilitating the cleaning of oil stains adhered to the guide plate; when it is necessary to clean the oil stains adhered to the guide plate, first remove the screws used to fix the guide plate, then remove the guide plate from the shell, and then clean the oil stains adhered to the guide plate. After the cleaning of the guide plate is completed, reinstall the guide plate into the oil fume inlet and re-fix the guide plate with screws.

[0010] In a possible implementation manner, the guide plate is fixed to the shell by two screws that are symmetrically arranged on the left and right sides; by adopting this structure, the guide plate can be fixed to the shell more reliably and stably.

[0011] In a possible embodiment, the upper end of the guide plate is provided with a second folded edge extending from top to bottom, and the second folded edge abuts against the rear inner wall of the oil fume inlet; by adopting this structure, under the action of the second folded edge, the second folded edge can abut against the rear inner wall of the oil fume inlet, and because the second folded edge extends from top to bottom, the upper end of the guide plate can reliably abut against the rear inner wall of the oil fume inlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a first three-dimensional structural schematic diagram of the utility model;

[0013] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0014] Figure 3 This is a schematic diagram of the three-dimensional structure of the utility model after removing part of the shell;

[0015] Figure 4 This is a second three-dimensional structural schematic diagram of the utility model;

[0016] Figure 5 It is a three-dimensional cross-sectional structural schematic diagram of the utility model;

[0017] Figure 6 for Figure 5 Schematic diagram of the structure after enlargement at A in the middle. DETAILED DESCRIPTION

[0018] First, those skilled in the art should understand that these implementations are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0019] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0020] In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0021] The present application is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] See also Figure 1-6 As shown, the embodiment of the present application discloses a range hood with good oil fume suction effect, comprising a shell 1, a baffle 2 and a driving assembly; a front-opening oil fume inlet 11 is arranged at the rear of the shell 1, and the oil fume inlet 11 is located at the lower edge of the shell 1; a guide plate 3 is arranged on the inner side of the oil fume inlet 11, and the guide plate 3 is inclined from top to bottom toward the front side; the baffle 2 is arranged on the front side of the oil fume inlet 11, and the baffle 2 is rotatably connected to the shell 1; the driving assembly is fixed inside the shell 1, and the baffle 2 is transmission-connected to the driving assembly, and the driving assembly is used to drive the baffle 2 to rotate relative to the shell 1 so that the baffle 2 blocks the opening on the front side of the oil fume inlet 11 or releases the blocking of the opening on the front side of the oil fume inlet 11; when the driving assembly drives the baffle 2 to rotate relative to the shell 1 so that the baffle 2 releases the blocking of the opening on the front side of the oil fume inlet 11, an angle α is formed between the baffle 2 and the guide plate 3, and a negative pressure smoking area is formed between the baffle 2 and the guide plate 3; the angle α is 30-35 degrees.

[0023] The angle α is 32.4 degrees; by adopting this structure, the negative pressure smoking area formed between the baffle and the guide plate can more reliably concentrate and absorb the oil smoke, that is, it can further reliably control the rising and diffusion of oil smoke, thereby effectively preventing the oil smoke from being inhaled by the human body and improving the indoor environment.

[0024] A rotating arm 4 is fixed to the rear sides of the left and right ends of the baffle 2. The end of the rotating arm 4 away from the baffle 2 movably penetrates the shell 1 and extends into the shell 1 and is rotatably connected to the shell 1. By adopting this structure, the baffle can be reliably rotatably connected to the shell through the rotating arm.

[0025] The driving assembly includes an electric actuator 51 and a connecting rod 52. The electric actuator 51 is fixed on the inner side of the housing 1. One end of the connecting rod 52 is rotatably connected to the swing rod 511 of the electric actuator 51, and the other end of the connecting rod 52 is rotatably connected to the middle part of one of the rotating arms 4. By adopting this driving assembly, when the swing rod of the electric actuator rotates toward one side, the rotating arm can be driven to rotate under the action of the connecting rod so that the baffle rotates toward the side of the oil fume inlet and blocks the opening of the oil fume inlet. When the swing rod of the electric actuator rotates toward the other side, the rotating arm can be driven to rotate under the action of the connecting rod so that the baffle rotates toward the side away from the oil fume inlet and releases the blocking of the opening of the oil fume inlet. In addition, the driving element has the advantages of simple structure and convenient control of the rotation of the baffle.

[0026] The guide plate 3 is detachably connected to the shell 1; the upper end of the guide plate 3 abuts against the rear inner wall of the oil fume inlet 11, and the lower end of the guide plate 3 is provided with a first folded edge 31 extending from front to rear, and the first folded edge 31 abuts against the inner bottom of the oil fume inlet 11, and the guide plate 3 is fixed to the shell 1 by at least one screw 6, and the screw portion of each screw 6 penetrates the bottom of the shell 1 and is threadedly connected with the first folded edge 31; by adopting this structure, the guide plate can be disassembled, so that it is convenient to clean the oil stains adhered to the guide plate; when it is necessary to clean the oil stains adhered to the guide plate, first remove the screws used to fix the guide plate, then remove the guide plate from the shell, and then clean the oil stains adhered to the guide plate. After the cleaning of the guide plate is completed, reinstall the guide plate into the oil fume inlet and fix the guide plate again with screws.

[0027] The guide plate 3 is fixed to the housing 1 by two screws 6 which are symmetrically arranged on the left and right sides. By adopting this structure, the guide plate can be fixed to the housing more reliably and stably.

[0028] The upper end of the guide plate 3 is provided with a second folded edge 32 extending from top to bottom, and the second folded edge 32 abuts against the rear inner wall of the oil fume inlet 11; by adopting this structure, under the action of the second folded edge, the second folded edge can abut against the rear inner wall of the oil fume inlet, and because the second folded edge extends from top to bottom, the upper end of the guide plate can reliably abut against the rear inner wall of the oil fume inlet.

[0029] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A range hood with a good oil fume extraction effect, comprising a shell (1), a baffle (2) and a drive assembly; the rear portion of the shell (1) is provided with an oil fume inlet (11) with a front opening, the oil fume inlet (11) being located at the lower edge of the shell (1); a guide plate (3) is provided on the inner side of the oil fume inlet (11), the guide plate (3) being inclined from top to bottom toward the front side; the baffle (2) is provided on the front side of the oil fume inlet (11), the baffle (2) being rotatably connected to the shell (1); the drive assembly is fixed inside the shell (1), the baffle (2) being transmission-connected to the drive assembly, the drive assembly being used to drive the baffle (2) to rotate relative to the shell (1) so that the baffle (2) blocks the opening on the front side of the oil fume inlet (11) or releases the blocking of the opening on the front side of the oil fume inlet (11); characterized in that: When the driving assembly drives the baffle (2) to rotate relative to the housing (1) so that the baffle (2) releases the obstruction of the opening on the front side of the oil smoke inlet (11), an angle α is formed between the baffle (2) and the guide plate (3), and a negative pressure smoking area is formed between the baffle (2) and the guide plate (3); the angle α is 30-35 degrees.

2. The range hood with good fume extraction effect according to claim 1, characterized in that: The angle α is 32.4 degrees.

3. The range hood with good fume extraction effect according to claim 1 or 2, characterized in that: Rotating arms (4) are fixed to the rear sides of both left and right ends of the baffle (2); one end of the rotating arm (4) away from the baffle (2) movably penetrates the shell (1) and then extends into the shell (1) and is rotatably connected to the shell (1).

4. The range hood with good fume extraction effect according to claim 3, characterized in that: The driving assembly comprises an electric actuator (51) and a connecting rod (52), wherein the electric actuator (51) is fixed on the inner side of the housing (1), one end of the connecting rod (52) is rotatably connected to a swing rod (511) of the electric actuator (51), and the other end of the connecting rod (52) is rotatably connected to the middle part of one of the rotating arms (4).

5. The range hood with good fume extraction effect according to claim 1, 2 or 4, characterized in that: The guide plate (3) is detachably connected to the shell (1); the upper end of the guide plate (3) abuts against the rear inner wall of the oil fume inlet (11); the lower end of the guide plate (3) is provided with a first folded edge (31) extending from front to rear; the first folded edge (31) abuts against the inner bottom of the oil fume inlet (11); the guide plate (3) is fixed to the shell (1) by at least one screw (6); the screw portion of each screw (6) passes through the bottom of the shell (1) and is threadedly connected to the first folded edge (31).

6. The range hood with good oil fume extraction effect according to claim 5, characterized in that: The guide plate (3) is fixed to the housing (1) via two screws (6) that are symmetrically arranged on the left and right.

7. The range hood with good fume extraction effect according to claim 5, characterized in that: The upper end of the guide plate (3) is provided with a second folded edge (32) extending from top to bottom, and the second folded edge (32) abuts against the rear inner wall of the oil fume inlet (11).

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