Range hood

Abstract

The utility model discloses a range hood which comprises a box body assembly, a smoke exhaust fan assembly, a smoke exhaust fan assembly, a smoke exhaust fan assembly and a smoke exhaust fan assembly, the smoke gathering mechanism comprises a smoke collecting hood, two turning plate assemblies and a driving assembly, the smoke collecting hood is arranged at the mounting opening, the smoke collecting hood and the box assembly define a T shape, air inlets are formed in the left side wall and the right side wall of the smoke collecting hood correspondingly, the two turning plate assemblies are rotationally connected to the left side wall and the right side wall of the smoke collecting hood correspondingly, and the driving assembly is arranged on the left side wall and the right side wall of the smoke collecting hood correspondingly. The driving assembly is arranged in the exhaust fume collecting hood, connected with the two turning plate assemblies and used for driving the turning plate assemblies to open or close the corresponding air inlets. The range hood disclosed by the utility model not only breaks through the form of a traditional range hood, but also reduces the diffusion of oil smoke towards the left and right outer sides of the smoke gathering mechanism, and improves the smoke suction effect.

Description

Technical Field

[0001] The utility model relates to the technical field of range hoods, in particular to a new type of range hood. Background Art

[0002] The existing design of the hidden range hood adopts a power structure with the overall lifting of the machine. This form has higher performance requirements for the power structure and greater energy consumption. When the range hood is in the descending state, since the air inlet is located on the front of the lifting part, during the smoking process, the oil fume is likely to diffuse from the left and right outer sides of the air inlet, resulting in the occurrence of oil fume escape; moreover, when the user is only cooking with a single burner, the overall descent of the machine will cause unnecessary energy waste and visual occlusion of the cooking area. Summary of the Invention

[0003] The utility model aims to solve at least one of the problems existing in the related art to a certain extent. For this purpose, the utility model provides a new type of range hood, which not only breaks the traditional form of the range hood, but also effectively reduces the diffusion of oil fume to the left and right outer sides of the fume collecting mechanism, and improves the smoking effect.

[0004] According to the above-provided new type of range hood, it is realized through the following technical solutions:

[0005] A new type of range hood, comprising: a box body assembly, with an installation opening provided in the middle in the left-right direction at the bottom of the box body assembly; a fume collecting mechanism, including a smoke collecting hood, two flap assemblies and a driving assembly. The smoke collecting hood is arranged at the installation opening and encloses with the box body assembly to form a "T" shape. Air inlets are respectively opened on the left and right side walls of the smoke collecting hood. The two flap assemblies are respectively rotatably connected to the left and right side walls of the smoke collecting hood. The driving assembly is arranged in the smoke collecting hood and is respectively connected to the two flap assemblies for driving the flap assemblies to open or close the corresponding air inlets.

[0006] In some embodiments, the flap assembly includes a fume collecting plate and a rotating shaft. The rotating shaft is arranged above the air inlet. The upper end of the fume collecting plate is rotatably connected to the left or right side wall of the smoke collecting hood through the rotating shaft. The output end of the driving assembly is connected to the fume collecting plate.

[0007] In some embodiments, the driving assembly includes a left motor, a right motor, a left transmission rod, and a right transmission rod. The left motor and the right motor are respectively arranged on the left and right sides inside the smoke collecting hood. The output end of the left motor is connected to the left flap assembly through the left transmission rod, and the output end of the right motor is connected to the right flap assembly through the right transmission rod; or the driving assembly includes a dual-axis motor, a left transmission rod, and a right transmission rod. The dual-axis motor is arranged inside the smoke collecting hood. One output end of the dual-axis motor is connected to the left flap assembly through the left transmission rod, and the other output end is connected to the right flap assembly through the right transmission rod.

[0008] In some embodiments, a left opening for the left transmission rod to pass through movably is provided on the left side wall of the smoke collecting hood, and a right opening for the right transmission rod to pass through movably is provided on the right side wall of the smoke collecting hood.

[0009] In some embodiments, an inner cavity with a bottom opening and an outer cavity with an installation opening are provided inside the box body assembly. The inner cavity is arranged inside the outer cavity, and the bottom opening of the inner cavity is communicated with the outer cavity. An air cabinet assembly is arranged inside the inner cavity.

[0010] In some embodiments, the smoke gathering mechanism further includes two oil screen assemblies and an oil cup assembly. The two oil screen assemblies are respectively detachably installed at the two air inlets. The oil cup assembly is detachably installed on the smoke collecting hood and is located below the two oil screen assemblies for receiving the oil stains flowing down from the two oil screen assemblies. The flap assembly is used to open or close the oil screen assemblies and the oil cup assembly.

[0011] In some embodiments, the smoke gathering mechanism further includes an operation panel assembly and / or a lighting assembly. The operation panel assembly is installed on the front of the smoke collecting hood, and the lighting assembly is installed inside the bottom of the smoke collecting hood and is located below the oil cup assembly.

[0012] In some embodiments, a lifting mechanism is further included. The lifting mechanism is arranged between the smoke gathering mechanism and the box body assembly and is used to drive the smoke gathering mechanism to rise and retract into the box body assembly or to descend and extend below the box body assembly.

[0013] In some embodiments, the descending height of the smoke gathering mechanism is 180 - 280 mm; and / or a wave sensing assembly or a descending switch assembly is provided at the bottom of the smoke collecting hood.

[0014] In some embodiments, the lifting mechanism includes a driver and a guide rail assembly. An installation groove with a rearward opening is provided on the rear side wall of the smoke collecting hood. At least part of the guide rail assembly is disposed in the installation groove and connected to the box body assembly, and the driver is disposed in the installation groove and its output end is in transmission connection with the guide rail assembly.

[0015] Compared with the prior art, the present utility model has at least the following beneficial effects:

[0016] For the range hood of the present utility model, by arranging the smoke collecting mechanism in the middle of the left and right directions at the bottom of the box body assembly, air inlets are respectively formed on the left and right side walls of the smoke collecting hood of the smoke collecting mechanism, and flap assemblies for opening or closing the air inlets are arranged at the air inlets. In this way, the whole smoke collecting mechanism is more compact and located in the middle position of the double-head cooking stove, with low suction of oil fume and no interference with the cooking of cookware, forming a new smoke collecting form, breaking the traditional form of range hoods. In addition, it can effectively reduce the diffusion of oil fume to the left and right outer sides of the smoke collecting mechanism, achieving the improvement of the smoking effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural view of the range hood in the ultra-low suction state in an embodiment of the present utility model, in which the left and right flap assemblies are both in the closed state;

[0018] Figure 2 is a schematic structural view of the range hood in the ultra-low suction state in an embodiment of the present utility model, in which the rear flap assembly is in the open state;

[0019] Figure 3 is a front view of the range hood in the ultra-low suction state in an embodiment of the present utility model, in which the left flap assembly is in the open state;

[0020] Figure 4 is a front view of the range hood in the ultra-low suction state in an embodiment of the present utility model, in which the left and right flap assemblies are both in the open state;

[0021] Figure 5 is a front view of the range hood in the low suction state in an embodiment of the present utility model, in which the left and right flap assemblies are both in the open state;

[0022] Figure 6 is a schematic structural view of the range hood in the closed state in an embodiment of the present utility model;

[0023] Figure 7 is a cross-sectional view of the range hood in the closed state in an embodiment of the present utility model;

[0024] Figure 8 is a cross-sectional view of the range hood in the closed state from another angle in an embodiment of the present utility model;

[0025] Figure 9 It is a schematic diagram of the smoke collecting mechanism and the lifting mechanism in the embodiment of the present utility model. In the figure, the smoke collecting mechanism is in the rising state;

[0026] Figure 10 It is a schematic diagram of the smoke collecting mechanism in the open state and the lifting mechanism in the embodiment of the present utility model. In the figure, the smoke collecting mechanism is in the descending state.

[0027] In the figure: 1 - box body assembly, 11 - inner cavity body, 12 - outer cavity body, 121 - installation opening, 13 - air cabinet assembly, 14 - oil receiving cup;

[0028] 2 - smoke collecting mechanism, 21 - smoke collecting hood, 211 - right opening, 212 - installation groove, 22 - flap assembly, 221 - smoke collecting plate, 222 - rotating shaft, 23 - driving assembly, 231 - left motor, 232 - right motor, 233 - left transmission rod, 234 - right transmission rod, 24 - oil screen assembly, 25 - oil cup assembly, 26 - operation panel assembly, 27 - lighting assembly; 3 - lifting mechanism, 31 - driver, 32 - guide rail assembly, 33 - fixed bracket. Detailed implementation manners

[0029] The following embodiments are used to illustrate the present utility model, but the present utility model is not limited by these embodiments. Modifying the specific implementation manners of the present utility model or equivalently replacing some technical features without departing from the spirit of the solution of the present utility model shall be covered within the scope of the technical solution claimed by the present utility model.

[0030] Embodiment 1

[0031] Reference Figure 1-8, this embodiment provides a new type of range hood, including a box body assembly 1 and a smoke collecting mechanism 2. In the middle of the bottom of the box body assembly 1 in the left-right direction, there is an installation opening 121. The smoke collecting mechanism 2 is installed in the middle of the bottom of the box body assembly 1 in the left-right direction. In this embodiment, the smoke collecting mechanism 2 includes a smoke collecting hood 21, two flap assemblies 22 and a driving assembly 23. The smoke collecting hood 21 is arranged at the installation opening 121 and encloses with the box body assembly 1 to form a "T" shape. At this time, the smoke collecting hood 21 is exactly located in the middle position of the double-head stove. On the left and right side walls of the smoke collecting hood 21, there is an air inlet (not shown in the figure) respectively. In this way, the negative pressure area is located on the left and right outer sides of the smoke collecting hood 21, so as to effectively reduce the diffusion of oil fume to the left and right outer sides of the smoke collecting hood 21, and then improve the smoking effect. The two flap assemblies 22 are respectively rotatably connected to the left and right side walls of the smoke collecting hood 21. The driving assembly 23 is arranged in the smoke collecting hood 21 and is respectively connected to the two flap assemblies 22, and is used to drive the flap assemblies 22 to open or close the corresponding air inlets. In this way, according to the use conditions of the left and right burners in the double-head stove, the left and / or right flap assemblies 22 can be opened to make the flap assemblies 22 enclose with the smoke collecting hood 21 to form a smoke collecting area, that is, to control the range hood to perform single-side smoke collection (see Figure 2-3 ) or double-side smoke collection (see Figure 4 ), so that the range hood can electrically adjust the oil fume flow channel, better save energy consumption, and achieve the best smoking effect.

[0032] It can be seen that compared with the existing range hoods, the smoke collecting mechanism of the range hood in this embodiment is overall smaller and is located in the middle position of the double-head stove, with low oil fume absorption and no obstruction to the cooking of cookware, forming a new smoke collecting form and breaking the traditional form of range hoods; in addition, compared with the existing range hoods with air inlets on the front of the lifting part, while realizing low suction and exhaust by separately opening the left or right flap assembly according to the user's needs, it effectively reduces the diffusion of oil fume to the left and right outer sides of the smoke collecting mechanism and improves the smoking effect.

[0033] Reference Figure 7-8, in this embodiment, the depth of the cabinet assembly 1 is only 325 mm, which can be perfectly embedded into the interior of the cabinet to achieve complete concealment. Inside the cabinet assembly 1, there is an inner cavity 11 and an outer cavity 12. In this embodiment, the inner cavity 11 is arranged at the upper end inside the outer cavity 12. The upper and lower ends of the inner cavity 11 are open to form a bottom opening and a top opening, and the inner cavity 11 is connected to the outer cavity 12 through the bottom opening. In the middle of the bottom of the outer cavity 12 in the left - right direction, there is an installation opening 121, and the outer cavity 12 is connected to the inside of the smoke - collecting hood 21 in the smoke - collecting mechanism 2 through the installation opening. Further, inside the inner cavity 11, there is a blower assembly 13 and an oil - collecting cup 14, and the oil - collecting cup 14 is located at the bottom of the blower assembly 13. The air inlet of the blower assembly 13 is connected to the inner cavity 11, and the air outlet of the blower assembly 13 is connected to the air outlet seat 15 through the top opening of the inner cavity 11.

[0034] Reference Figure 1-4 , the flap assembly 22 includes a smoke - collecting plate 221 and a rotating shaft 222. The rotating shaft 222 is arranged on the left - hand side wall or the right - hand side wall of the smoke - collecting hood 21 and is located above the corresponding air inlet. The upper end of the smoke - collecting plate 221 is rotationally connected to the left - hand side wall or the right - hand side wall of the smoke - collecting hood 21 through the rotating shaft 222. The output end of the driving assembly 23 is connected to the smoke - collecting plate 221 for driving the smoke - collecting plate 221 to open or close the corresponding air inlet.

[0035] The specific structure of the driving assembly 23 includes but is not limited to any of the following:

[0036] The first type, see Figure 1-8 , the driving assembly 23 includes a left motor 231, a right motor 232, a left transmission rod 233 and a right transmission rod 234. The left motor 231 is fixedly installed on the left side inside the smoke - collecting hood 21 through a left fixing bracket. The output end of the left motor 231 is connected to the left - hand flap assembly 22 through the left transmission rod 233; while the right motor 232 is fixedly installed on the right side inside the smoke - collecting hood 21 through a right fixing bracket. The output end of the right motor 232 is connected to the right - hand flap assembly 22 through the right transmission rod 234. Thus, the opening or closing of the left - and right - hand flap assemblies 22 is independent of each other.

[0037] The second type, the driving assembly 23 includes a bi - axial motor (not shown in the figure), a left transmission rod 233 and a right transmission rod 234. The bi - axial motor is arranged inside the smoke - collecting hood 21. One output end of the bi - axial motor is connected to the left - hand flap assembly 22 through the left transmission rod 233, and the other output end is connected to the right - hand flap assembly 22 through the right transmission rod 234. Thus, by sharing the same bi - axial motor for the left transmission rod 233 and the right transmission rod 234, it is beneficial to reduce the manufacturing cost.

[0038] Reference Figure 2, in this embodiment, a left opening (not shown in the figure) through which the left transmission rod 233 can move is provided on the left side wall of the smoke collecting hood 21, and a right opening 211 through which the right transmission rod 234 can move is provided on the right side wall of the smoke collecting hood 21. The right opening 211 and the right opening 211 are both located behind the air inlet. In other embodiments, the right opening 211 and the right opening 211 can be omitted. In this case, the left transmission rod 233 and the right transmission rod 234 need to be set to be able to move through the corresponding air inlets.

[0039] Reference Figure 1-8 , further, the smoke gathering mechanism 2 further includes two oil screen assemblies 24 and an oil cup assembly 25. The two oil screen assemblies 24 are respectively detachably installed at the two air inlets. The oil cup assembly 25 is detachably installed on the smoke collecting hood and is located below the two oil screen assemblies for receiving the oil stains flowing down from the two oil screen assemblies 24. The flap assembly 22 is used to open or close the oil screen assemblies 24 and the oil cup assembly 25. In this way, when the flap assembly 22 is in the closed state, the oil screen assemblies 24 and the oil cup assembly 25 are both hidden behind the flap assembly 22, preventing the oil screen assemblies 24 and the oil cup assembly from being exposed, effectively improving the neatness and aesthetics of the range hood in the closed state.

[0040] Furthermore, the smoke gathering mechanism 2 further includes an operation panel assembly 26 and / or a lighting assembly 27. The operation panel assembly 26 is installed on the front of the smoke collecting hood 21. In this embodiment, the operation panel assembly 26 completely covers the front of the smoke collecting hood 21, and the bottom of the operation panel assembly 26 protrudes downward from the bottom of the smoke collecting hood 21. The lighting assembly 27 is installed inside the bottom of the smoke collecting hood 21 and is located below the oil cup assembly 25. When the lighting assembly 28 works, the light can provide illumination downward through the bottom of the smoke collecting hood 21, and at the same time, it can prevent the light from being dazzling.

[0041] Embodiment 2

[0042] Reference Figure 1-10 , the difference between this embodiment and Embodiment 1 is that the range hood further includes a lifting mechanism 3. The lifting mechanism 3 is arranged between the smoke gathering mechanism 2 and the cabinet assembly 1 and is used to drive the smoke gathering mechanism 2 to rise and retract into the cabinet assembly 1 or descend and extend below the cabinet assembly 1, so that the smoke gathering mechanism 2 can switch between the hidden state (i.e., the closed state) and the use state. Thus, when the range hood is in the use state (see Figure 2-5 ), since the smoke gathering mechanism 2 is located in the middle of the cabinet assembly 1, when using a double-burner for cooking, the lifting of the smoke gathering mechanism 2 does not affect the user's cooking state, and it has low suction of oil fumes and does not block the cooking of the cookware. At this time, the range hood can electrically control the opening and closing of the two flap assemblies 22 according to the exhaust requirements caused by the user's cooking to automatically adjust the smoke suction channels on both sides of the smoke gathering mechanism 2 to improve the exhaust effect and reduce energy consumption; when the range hood is in the closed state, the smoke gathering mechanism 2 is hidden in the cabinet assembly 1 (see Figure 6), and the cabinet assembly 1 is perfectly hidden in the user's cabinet, solving the problem that the range hood is too bulky and damages the kitchen environment.

[0043] Further, the descending height of the smoke collecting mechanism 2 is 180 - 280 mm, preferably 200 - 260 mm. In this embodiment, the lifting mechanism 3 can control the smoke collecting mechanism 2 to descend to a low position according to the working gear of the range hood or the concentration of cooking fumes generated by the user (see Figure 1-4 ), that is, descend to 260 mm to form an ultra-low suction smoke collecting form; or control the smoke collecting mechanism 2 to descend to a high position (see Figure 5 ), that is, descend 200 mm to form a low suction smoke collecting form. A wave induction component or a descending switch component is provided at the bottom of the smoke collecting hood 21. When the wave induction component senses a wave signal or the descending switch component is activated, the lifting mechanism 3 is activated to drive the smoke collecting mechanism 2 to descend and extend below the cabinet assembly 1.

[0044] In this embodiment, the blower assembly 13 has two speeds of medium and low. There are four suction and exhaust modes set in the range hood program, namely low gear, medium gear, high gear and stir-fry gear modes. The default mode when starting up is the low gear suction and exhaust mode. The descriptions of each gear mode are as follows:

[0045] 1. In the low gear mode, the blower assembly 13 is at low speed, and the descending distance of the smoke collecting mechanism 2 is 200 mm (see Figure 5 ), forming a smoke collecting form of downward exploration smoking, with relatively low noise;

[0046] 2. In the medium gear mode, the blower assembly 13 is at medium speed, and the descending distance of the smoke collecting mechanism 2 is 200 mm (see Figure 5 ), forming a smoke collecting form of downward exploration smoking, and increasing the speed of the blower assembly 13 to further improve the smoking effect;

[0047] 3. In the high gear mode, the blower assembly 13 first maintains medium speed, and the descending distance of the smoke collecting mechanism 2 is 260 mm (see Figure 1-4 ), forming a low suction smoke collecting area form to focus on the oil fume generation area. At this time, the blower assembly 13 freely adjusts the speed between low gear and medium gear according to the detected oil fume concentration, bringing a contrast effect of increased exhaust capacity and decreased noise;

[0048] 4. In the stir-fry gear mode, the blower assembly 13 maintains medium speed, and the descending distance of the smoke collecting mechanism 2 is 260 mm (see Figure 1-4 ), focusing on the oil fume generation area and achieving efficient exhaust in the low suction mode.

[0049] Refer to Figure 7-10, Further, the lifting mechanism 3 includes a driver 31 and a guide rail assembly 32. An installation groove 212 that opens backward and is vertically arranged is provided on the rear side wall of the smoke collecting hood 21. At least part of the guide rail assembly 32 is arranged in the installation groove 212 and is connected to the box body assembly 1. The driver 31 is arranged in the installation groove 212 and is connected to the smoke collecting hood 21 through a fixing bracket 33. The output end of the driver 31 is in transmission connection with the guide rail assembly 32, so that the smoke gathering mechanism 2 can be lifted and lowered relative to the box body assembly 1 smoothly.

[0050] The above are only some embodiments of the present invention. For those of ordinary skill in the art, without departing from the creative concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A range hood, characterized in that: include: A box assembly (1), wherein a mounting opening (121) is provided in the middle of the bottom of the box assembly (1) in the left-right direction; A smoke collecting mechanism (2) comprises a smoke collecting hood (21), two flap assemblies (22) and a driving assembly (23); the smoke collecting hood (21) is arranged at the installation opening (121) and is enclosed with the box assembly (1) to form a "T" shape; air inlets are respectively provided on the left and right side walls of the smoke collecting hood (21); the two flap assemblies (22) are respectively rotatably connected to the left and right side walls of the smoke collecting hood (21); the driving assembly (23) is arranged in the smoke collecting hood (21) and is respectively connected to the two flap assemblies (22) for driving the flap assemblies (22) to open or close the corresponding air inlets.

2. The range hood according to claim 1, characterized in that: The flap assembly (22) comprises a smoke collecting plate (221) and a rotating shaft (222), wherein the rotating shaft (222) is arranged above the air inlet, and the upper end of the smoke collecting plate (221) is rotatably connected to the left side wall or the right side wall of the smoke collecting hood (21) via the rotating shaft (222), and the output end of the driving assembly (23) is connected to the smoke collecting plate (221).

3. The range hood according to claim 1, characterized in that: The driving assembly (23) comprises a left motor (231), a right motor (232), a left transmission rod (233) and a right transmission rod (234); the left motor (231) and the right motor (232) are respectively arranged on the left and right sides of the interior of the smoke collecting hood (21); the output end of the left motor (231) is connected to the left flap assembly (22) through the left transmission rod (233); and the output end of the right motor (232) is connected to the right flap assembly (22) through the right transmission rod (234); or The driving assembly (23) comprises a dual-axis motor, a left transmission rod (233) and a right transmission rod (234); the dual-axis motor is arranged in the smoke collecting hood (21); one output end of the dual-axis motor is connected to the left flap assembly (22) through the left transmission rod (233); and the other output end is connected to the right flap assembly (22) through the right transmission rod (234).

4. The range hood according to claim 3, characterized in that: A left opening is provided on the left side wall of the smoke collecting hood (21) for the left transmission rod (233) to movably pass through, and a right opening (211) is provided on the right side wall of the smoke collecting hood (21) for the right transmission rod (234) to movably pass through.

5. The range hood according to claim 1, characterized in that: An inner cavity (11) having a bottom opening and an outer cavity (12) having a mounting opening (121) are provided inside the box assembly (1); the inner cavity (11) is arranged inside the outer cavity (12); the bottom opening of the inner cavity (11) is connected to the outer cavity (12); and a wind cabinet assembly (13) is provided inside the inner cavity (11).

6. The range hood according to claim 1, characterized in that: The smoke collecting mechanism (2) further comprises two oil net assemblies (24) and an oil cup assembly (25); the two oil net assemblies (24) are respectively detachably mounted at the two air inlets; the oil cup assembly (25) is detachably mounted on the two smoke collecting hoods (21) and is located below the two oil net assemblies (24) and is used to receive the oil stains flowing down from the two oil net assemblies (24); and the flap assembly (22) is used to open or close the oil net assembly (24) and the oil cup assembly (25).

7. The range hood according to claim 6, characterized in that: The smoke collecting mechanism (2) further comprises an operating panel assembly (26) and / or a lighting assembly (27); the operating panel assembly (26) is mounted on the front of the smoke collecting hood (21); and the lighting assembly (27) is mounted on the inner side of the bottom of the smoke collecting hood (21) and is located below the oil cup assembly (25).

8. The range hood according to any one of claims 1 to 7, characterized in that: It also comprises a lifting mechanism (3), which is arranged between the smoke collecting mechanism (2) and the box assembly (1) and is used to drive the smoke collecting mechanism (2) to rise and retract into the box assembly (1), or to descend and extend below the box assembly (1).

9. The range hood according to claim 8, characterized in that: The descending height of the smoke collecting mechanism (2) is 180-280 mm; and / or a hand-waving induction component or a descending switch component is provided at the bottom of the smoke collecting hood (21).

10. The range hood according to claim 8, characterized in that: The lifting mechanism (3) comprises a driver (31) and a guide rail assembly (32); a mounting groove (212) opening toward the rear is provided on the rear side wall of the smoke collecting hood (21); at least a portion of the guide rail assembly (32) is arranged in the mounting groove (212) and is connected to the box assembly (1); the driver (31) is arranged in the mounting groove (212) and an output end thereof is drivingly connected to the guide rail assembly (32).

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