Range hood with automatic filter flipping

Abstract

The present invention provides a range hood with an automatically flipping filter, comprising a filter, a guide plate, a driving device, a connecting rod assembly, a sliding assembly, an oil cup and a range hood body, wherein the sliding assembly is arranged in the range hood body, one end of the filter is movably arranged on the sliding assembly, and the other end is movably connected to the front end of the guide plate, and the rear end of the guide plate is movably connected to the rear bottom of the range hood body, the filter and the guide plate are respectively connected to the connecting rod assembly, the front end of the connecting rod assembly is slidably connected to the sliding assembly, and the rear end is connected to the driving device, the driving device is fixed on the first side wall of the range hood body, and the oil cup is connected to the rear end of the guide plate. The smoke collecting chamber of the present invention is closer to the stove and the point where oil smoke is generated, and the smoke collection effect is better. When not working, the filter is flipped to the inside of the range hood, and the appearance of the whole machine is also better; the oil cup is arranged at the edge, which also avoids the problem that the oil cup is arranged in the middle and oil stains are easy to drip into the pot.

Description

Technical Field

[0001] The invention belongs to the technical field of range hoods, and in particular relates to a range hood with an automatically flipping filter screen. Background Art

[0002] A range hood is a kitchen appliance that purifies the kitchen environment. For a range hood, the smoke extraction effect is its biggest core function, and for the smoke extraction effect, the setting method, shape and position of the filter directly determine the smoke extraction effect of the range hood. Nowadays, there are many types of range hoods, such as: top-suction range hoods. In this top-suction range hood, the method of setting the filter is basically to use a downward convex cone filter, and the oil cup for holding waste oil is set directly below the conical filter. Therefore, this downward convex cone filter is not only unsightly, but also prone to oil dripping into the pot. This setting method has the risk of contaminating food. For the above-mentioned top-suction range hood, in order to solve the problem of oil dripping into the pot, most of the existing technologies use an inverted cone filter or a flat filter, and the oil cup is set back below the depth edge of the range hood. Although this filter setting method can solve the problem of oil dripping into the pot, because the oil needs to flow backwards, the smoke collecting chamber and the box surface are set to be backward inclined, thereby reducing the negative pressure area of ​​the smoke collecting chamber. Therefore, it has the disadvantages of poor smoke collection effect, poor smoking effect and high noise. Summary of the invention

[0003] In order to solve some of the problems existing in the above-mentioned prior art, the main purpose of the present invention is to provide a range hood with an automatically flipping filter, which can increase the negative pressure area of ​​the smoke collecting chamber and improve the smoke collection effect.

[0004] In order to achieve the above-mentioned purpose, the present invention provides a range hood with an automatically flipping filter, comprising a filter, a guide plate, a driving device, a connecting rod assembly, a sliding assembly, an oil cup and a range hood body, the sliding assembly is arranged in the range hood body, one end of the filter is movably arranged on the sliding assembly, and the other end is movably connected to the front end of the guide plate, the rear end of the guide plate is movably connected to the rear bottom of the range hood body, the filter and the guide plate are respectively connected to the connecting rod assembly, the front end of the connecting rod assembly is slidably connected to the sliding assembly, and the rear end is connected to the driving device, the driving device is fixed on the first side wall of the range hood body, the oil cup is connected to the rear end of the guide plate, and the driving device drives the connecting rod assembly to rotate, so that the filter flips upward to be folded into the range hood body, or flips downward to move the smoke collecting chamber of the range hood body downward.

[0005] Furthermore, the connecting rod assembly includes a first connecting rod assembly and a second connecting rod assembly, the first connecting rod assembly is connected to both ends of the first side of the filter net and the first side of the guide plate, and the second connecting rod assembly is connected to both ends of the second side of the filter net and the second side of the guide plate.

[0006] Furthermore, the first connecting rod assembly includes a first filter screen connecting rod and a first guide plate connecting rod, the middle part of the first guide plate connecting rod is connected to the middle part of the first side of the guide plate, the front end of the first filter screen connecting rod is slidably connected to the sliding assembly and is simultaneously connected to the upper end of the filter screen, the rear end of the first filter screen connecting rod and the front end of the first guide plate connecting rod are connected to the first rivet, the lower end of the filter screen is provided with a tongue, the tongue is plug-connected to the first tongue groove at the rear end of the first filter screen connecting rod, and the rear end of the first guide plate connecting rod is connected to the transmission shaft of the driving device.

[0007] Furthermore, the second connecting rod assembly includes a second filter screen connecting rod and a second guide plate connecting rod, the middle part of the second guide plate connecting rod is connected to the middle part of the second side of the guide plate, the front end of the second filter screen connecting rod is slidably connected to the sliding assembly and is simultaneously connected to the upper end of the filter screen, the rear end of the second filter screen connecting rod and the front end of the second guide plate connecting rod are connected to the second rivet, and the tongue is plug-connected to the second tongue groove at the rear end of the second filter screen connecting rod.

[0008] Furthermore, it also includes a secondary connecting rod, the front end of which is connected to the rear end of the second guide plate connecting rod, and the rear end of the secondary connecting rod is connected to the second side wall of the range hood body.

[0009] Furthermore, the filter screen has an arc-shaped cross section, the radius of the arc is 250-350 mm, and a plurality of smoke inlets are provided on the filter screen.

[0010] Furthermore, filter screen side plates are provided on two side edges of the filter screen. When the filter screen is folded down, the filter screen side plates, the filter screen and the guide plate form a smoke collecting chamber.

[0011] Furthermore, it also includes a guide groove and a guide ring. The guide groove is arranged at the front end of the guide plate. A smoke inlet cavity adapted to the guide plate is opened at the bottom of the range hood body. The guide ring is arranged around the smoke inlet cavity and is connected to the oil cup.

[0012] Furthermore, it also includes a slide rail cross bar, both ends of which are slidably connected to the slide rails of the sliding assembly, and the front end of the connecting rod assembly is movably connected to the slide rail cross bar.

[0013] Furthermore, the oil cup is a rectangular parallelepiped or a cylinder and is fixed at the rear bottom of the range hood body.

[0014] The invention provides a range hood with an automatically flipping filter. When the range hood starts working, a driving device drives the connecting rod assembly to rotate downward, driving the filter to flip downward along the sliding assembly, and at the same time, the guide plate flips downward along with the filter, so that the smoke collecting chamber moves downward, the filter is closer to the stove and the point where oil smoke is generated, and the oil smoke suction effect is better; when the range hood stops working, the driving device drives the connecting rod assembly to rotate upward, driving the filter to flip upward along the sliding assembly, and at the same time, the guide plate flips upward along with the filter, and finally the guide plate is closed with the bottom of the range hood body, the filter is in an upright state, and the oil stains flow faster under the action of gravity, flow along the filter to the guide plate, and finally flow into the oil cup.

[0015] Compared with the prior art, when the range hood of the present invention is working, the smoke collecting chamber moves downward, closer to the stove and the point where the oil smoke is generated, with a better smoke collection effect and less noise; when not working, the filter screen flips to the inside of the range hood, and the appearance of the whole machine is also better; at the same time, the oil cup is arranged at the edge, which also avoids the problem of the oil cup being arranged in the middle and oil stains easily dripping into the pot. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a range hood with an automatically flipping filter screen according to an embodiment of the present invention;

[0017] Figure 2 This is an appearance diagram of the closed state of the filter screen and the guide plate in an embodiment of the present invention;

[0018] Figure 3 This is an appearance diagram of the filter screen and the guide plate in the opened state in an embodiment of the present invention;

[0019] Figure 4 It is a cross-sectional view of the closed state of the filter screen and the guide plate in an embodiment of the present invention;

[0020] Figure 5 It is a cross-sectional view of the filter screen and the guide plate in the open state in the embodiment of the present invention;

[0021] Figure 6 It is a combined exploded view of the connecting rod assembly in an embodiment of the present invention. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0023] The embodiment of the present invention provides a range hood with an automatically flipping filter screen, such as Figure 1-5As shown, it includes a filter 1, a guide plate 2, a driving device 3, a connecting rod assembly 4, a sliding assembly 5, an oil cup 6 and a range hood body 7. The sliding assembly 5 is arranged in the range hood body 7. One end of the filter 1 is movably arranged on the sliding assembly 5, and the other end is movably connected to the front end of the guide plate 2. The rear end of the guide plate 2 is movably connected to the rear edge 74 of the bottom of the range hood body 7. The filter 1 and the guide plate 2 are respectively connected to the connecting rod assembly 4. The front end of the connecting rod assembly 4 is slidably connected to the sliding assembly 5, and the rear end is connected to the driving device 3. The driving device 3 is fixed on the first side wall of the range hood body, and the oil cup 6 is connected to the rear end of the guide plate 2.

[0024] With the above structure, the driving device 3 drives the connecting rod assembly 4 to rotate, so that the filter screen flips upward to be folded into the range hood body 7, or flips downward to move the smoke collecting chamber of the range hood body 7 downward. Specifically, when the range hood starts to work, the driving device 3 drives the connecting rod assembly 4 to rotate downward, driving the filter screen 1 to flip downward along the sliding assembly 5 on the front wall 73 of the range hood body 7, and the guide plate 2 flips downward with the filter screen 1, so that the smoke collecting chamber moves downward, and the filter screen 1 is closer to the stove and the point where the oil smoke is generated, and the oil smoke suction effect is better; when the range hood stops working, the driving device 3 drives the connecting rod assembly 4 to rotate upward, driving the filter screen 1 to flip upward along the sliding assembly 5, and the guide plate 2 flips upward with the filter screen 1, and finally the guide plate 2 is closed with the bottom of the range hood body 7, and the filter screen 1 is in an upright state. Under the action of gravity, the oil stains flow faster, flow along the filter screen 1 to the guide plate 2, and finally merge into the oil cup 6.

[0025] like Figure 6 As shown, the connecting rod assembly 4 includes a first connecting rod assembly 41 and a second connecting rod assembly 42, the first connecting rod assembly 41 is connected to the first side edge 11 of the filter screen 1 and the first side edge 21 of the guide plate 2, and the second connecting rod assembly 42 is connected to the second side edge 12 of the filter screen 1 and the second side edge 22 of the guide plate 2;

[0026] Specifically, the first connecting rod assembly 41 includes a first filter screen connecting rod 411 and a first guide plate connecting rod 412. The middle portion of the first guide plate connecting rod 412 is connected to the middle portion of the first side edge 21 of the guide plate 2. The front end of the first filter screen connecting rod 411 is slidably connected to the sliding assembly 5 and is simultaneously connected to the upper end of the filter screen 1. The rear end of the first filter screen connecting rod 411 and the front end of the first guide plate connecting rod 412 are connected to the first rivet 43. The lower end of the filter screen 1 is provided with a plug tongue 14. The plug tongue 14 is plug-connected to the first plug tongue groove 413 at the rear end of the first filter screen connecting rod 411. The rear end of the first guide plate connecting rod 412 is connected to the transmission shaft of the driving device 3.

[0027] The second connecting rod assembly 42 includes a second filter screen connecting rod 421 and a second guide plate connecting rod 422. The middle portion of the second guide plate connecting rod 422 is connected to the middle portion of the second side edge of the guide plate 2. The front end of the second filter screen connecting rod 421 is slidably connected to the sliding assembly 5 and is simultaneously connected to the upper end of the filter screen 1. The rear end of the second filter screen connecting rod 421 and the front end of the second guide plate connecting rod 422 are connected to the second rivet 44. The inserting tongue 14 is plug-connected to the second inserting tongue groove 423 at the rear end of the second filter screen connecting rod 421.

[0028] The plug-in connection between the inserting tongue 14 and the first inserting tongue groove 413 and the second inserting tongue groove 423 can make the assembly and disassembly of the filter screen 1 more convenient and quick.

[0029] The connecting rod assembly 4 further includes a secondary connecting rod 45, the front end of which is connected to the rear end of the second guide plate connecting rod 422, and the rear end of which is connected to the second side wall 72 of the range hood body;

[0030] In this way, the driving device 3 rotates the first guide plate connecting rod 412, driving the first filter screen connecting rod 411 to rotate, and at the same time the second filter screen connecting rod 421, the second guide plate connecting rod 422 and the auxiliary connecting rod 45 follow the linkage, and finally the filter screen 1 and the guide plate 2 are flipped up and down; the connecting rod assembly 4 allows the filter screen 1 and the guide plate 2 to be flipped smoothly.

[0031] like Figure 4 and 5 As shown, the cross-section of the filter 1 is an arc-shaped, and the radius of the arc is 250-350 mm, and the preferred radius in this embodiment is 300 mm; this can increase the contact area between the filter 1 and the oil smoke, and at the same time, when the filter 1 is upright, the grease on it can flow down better along the arc; a plurality of smoke inlets are opened on the filter to perform preliminary filtering of the oil smoke.

[0032] like Figure 1-3 As shown, this embodiment further includes a filter screen side plate 13 , a guide groove 23 , a guide ring 24 and a slide rail cross bar 51 .

[0033] The filter side plate 13 is fixed on the side of the filter 1. When the filter 1 is turned down, the filter side plate 13, the filter 1 and the guide plate 2 form a smoke collecting chamber, which can absorb the oil smoke generated in the pot in the first time.

[0034] The guide groove 23 is arranged at the front end of the guide plate 2. When the filter 1 and the guide plate 2 are opened and the range hood is working, the oil droplets on the filter 1 and the guide plate 2 slide smoothly into the guide groove 23 to prevent the oil from dripping into the pot.

[0035] A smoke inlet cavity adapted to the guide plate 2 is provided at the bottom of the range hood body 7 , and a guide ring 24 is arranged around the smoke inlet cavity and is connected to the oil cup 6 . The oil droplets on the filter 1 and the guide plate 2 flow into the guide ring 24 , and then flow into the oil cup 6 along the guide ring 24 .

[0036] Both ends of the slide rail cross bar 51 are slidably connected to the slide rails of the sliding assembly 5, and the front end of the connecting rod assembly 4 is movably connected to the slide rail cross bar 51, so that the first connecting rod assembly 41 and the second connecting rod assembly 42 can be turned up and down synchronously.

[0037] The oil cup 6 is a cuboid or a cylinder, and is preferably a cuboid in this embodiment. The oil cup 6 is fixed to the rear of the bottom of the range hood body 7. The oil cup is arranged in the middle to prevent oil stains from easily dripping into the pot.

[0038] In this embodiment, the driving device 3 is preferably a motor, which is electrically connected to the control panel of the range hood and can receive control instructions in real time to control the flipping of the filter 1 and the guide plate 2.

[0039] When the range hood of the present invention is working, the filter 1 flips down and the smoke collecting chamber moves down, closer to the stove and the point where the oil smoke is generated, so the smoke collecting effect is better. When not working, the filter 1 flips over to the inside of the range hood body 7, and the appearance of the whole machine is also better. At the same time, the oil cup 6 is arranged at the edge of the bottom of the range hood body 7, which also avoids the problem that the oil cup 6 is arranged in the middle and oil stains are easy to drip into the pot.

[0040] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention 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 by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A range hood with an automatically flippable filter screen, comprising a filter screen, a guide plate, a driving device, a connecting rod assembly, a sliding assembly, an oil cup and a range hood body, characterized in that: The sliding assembly is arranged in the range hood body, one end of the filter screen is movably arranged on the sliding assembly, and the other end is movably connected to the front end of the guide plate, and the rear end of the guide plate is movably connected to the rear bottom of the range hood body, the filter screen and the guide plate are respectively connected to the connecting rod assembly, the front end of the connecting rod assembly is slidably connected to the sliding assembly, and the rear end is connected to the driving device, the driving device is fixed on the first side wall of the range hood body, the oil cup is connected to the rear end of the guide plate, and the driving device drives the connecting rod assembly The component rotates to make the filter flip upward to be folded into the range hood body, or flip downward to move the smoke collecting chamber of the range hood body downward; the connecting rod assembly includes a first connecting rod assembly and a second connecting rod assembly, the first connecting rod assembly is connected to the first side edge of the filter and the first side edge of the guide plate, and the second connecting rod assembly is connected to the second side edge of the filter and the second side edge of the guide plate; filter side panels are provided on the two side edges of the filter, and when the filter is flipped down, the filter side panels, the filter and the guide plate form a smoke collecting chamber.

2. The range hood with automatically flipping filter screen according to claim 1, characterized in that: The first connecting rod assembly includes a first filter screen connecting rod and a first guide plate connecting rod. The middle portion of the first guide plate connecting rod is connected to the middle portion of the first side of the guide plate. The front end of the first filter screen connecting rod is slidably connected to the sliding assembly and is simultaneously connected to the upper end of the filter screen. The rear end of the first filter screen connecting rod is connected to the front end of the first guide plate connecting rod on a first rivet. The lower end of the filter screen is provided with a tongue, and the tongue is plug-connected to the first tongue groove at the rear end of the first filter screen connecting rod. The rear end of the first guide plate connecting rod is connected to the transmission shaft of the drive device.

3. The range hood with automatically flipping filter screen according to claim 2, characterized in that: The second connecting rod assembly includes a second filter screen connecting rod and a second guide plate connecting rod, the middle portion of the second guide plate connecting rod is connected to the middle portion of the second side of the guide plate, the front end of the second filter screen connecting rod is slidably connected to the sliding assembly and is simultaneously connected to the upper end of the filter screen, the rear end of the second filter screen connecting rod and the front end of the second guide plate connecting rod are connected to the second rivet, and the tongue is plug-connected to the second tongue groove at the rear end of the second filter screen connecting rod.

4. The range hood with automatically flipping filter screen according to claim 3, characterized in that: It also includes a secondary connecting rod, the front end of which is connected to the rear end of the second guide plate connecting rod, and the rear end of which is connected to the second side wall of the range hood body.

5. The range hood with automatically flipping filter screen according to claim 1, characterized in that: The cross section of the filter is in the shape of an arc, the radius of the arc is 250-350 mm, and a plurality of smoke inlets are provided on the filter.

6. The range hood with automatically flipping filter screen according to claim 1, characterized in that: It also includes a guide groove and a guide ring. The guide groove is arranged at the front end of the guide plate. A smoke inlet cavity adapted to the guide plate is opened at the bottom of the range hood body. The guide ring is arranged around the smoke inlet cavity and is connected to the oil cup.

7. The range hood with automatically flipping filter screen according to claim 1, characterized in that: It also includes a slide rail cross bar, both ends of which are slidably connected to the slide rails of the sliding assembly, and the front end of the connecting rod assembly is movably connected to the slide rail cross bar.

8. The range hood with automatic filter flipping according to any one of claims 1 to 7, characterized in that: The oil cup is a rectangular parallelepiped or a cylinder and is fixed behind the bottom of the range hood body.

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