A reversible oil screen structure

Abstract

The present invention discloses a flipable oil screen structure, which is applied to a range hood. The range hood has a hood main body, and an air inlet is formed on the hood main body. The structure includes: a folding panel assembly, which is movably arranged on the hood main body through a folding assembly; an oil screen assembly, which is arranged on the folding assembly. The oil screen assembly can follow the folding and unfolding of the folding assembly to open and close the air inlet, and the oil screen assembly is connected to the folding assembly through a detachable structure; a driving assembly, the output end of the driving assembly is connected to the folding panel assembly, and the driving assembly drives the folding panel assembly to move so as to drive the folding assembly to perform a flipping movement, and drives the oil screen assembly to open or close the air inlet through the action of the folding assembly. The structure is simple, which can make the arrangement position of the oil screen no longer limited, thereby avoiding the influence on the smoking effect due to the bending of the oil fume path.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen appliances, and in particular, to a flip - able oil - mesh structure. Background Art

[0002] In order to make the negative - pressure area of the range hood move downward and further improve the smoke - suction effect, people have invented various range hoods with movable parts.

[0003] In related technologies, the smoke - suction effects of most top - type range hoods and side - type range hoods are not satisfactory. For top - type range hoods, the smoke - enclosing effect is good, but the air - inlet is far from the smoke source, that is, the negative - pressure position is relatively high, and the oil fume is easy to diffuse from all around; for near - type range hoods, although the air - inlet is close to the smoke source, the smoke - enclosing effect is poor, and the oil fume is easy to escape from the top surface; for side - type range hoods, the air - inlet is arranged on the side panel, that is, there is a certain angle between the rising direction of the oil fume and the air - inlet direction, which is not conducive to the suction of the oil fume, so it is difficult to enclose the oil fume well. Furthermore, the range hood cannot completely solve the problem of incomplete oil - fume suction. At the same time, there are multiple movable parts at the movable oil - mesh, and it is difficult to design a quick - disassembly structure. Summary of the Invention

[0004] The present invention aims to solve at least one of the problems existing in the related prior arts to a certain extent. For this reason, the present invention provides a flip - able oil - mesh structure, which has a simple structure, can make the arrangement position of the oil - mesh no longer limited, so as to avoid affecting the smoke - suction effect due to the bending of the oil - fume path.

[0005] The above object is achieved through the following technical solutions:

[0006] A flip - able oil - mesh structure is applied to a range hood. The range hood has a range - hood main body, and an air - inlet is opened on the range - hood main body. The flip - able oil - mesh structure includes:

[0007] An opening - closing panel assembly, which is movably arranged on the range - hood main body through an opening - closing assembly;

[0008] An oil - mesh assembly, which is arranged on the opening - closing assembly. The oil - mesh assembly can open and close the air - inlet following the opening and closing of the opening - closing assembly, and the oil - mesh assembly is connected to the opening - closing assembly through a detachable structure;

[0009] A driving assembly, the output end of which is connected to the opening - closing panel assembly. The driving assembly drives the opening - closing panel assembly to move so as to drive the opening - closing assembly to perform a flipping motion, and drives the oil - mesh assembly to open or close the air - inlet through the action of the opening - closing assembly.

[0010] In some embodiments, the oil screen assembly includes an oil screen and an oil screen bracket. The opening and closing assembly includes a connecting rod. One end of the connecting rod is hinged to the main body of the range hood, and the other end is hinged to one end of the oil screen bracket. The other end of the oil screen bracket is hinged to the movable end of the opening and closing panel assembly. The oil screen is detachably arranged on the oil screen bracket.

[0011] In some embodiments, there are two oil screen brackets, and the two oil screen brackets are symmetrically arranged on both sides of the main body of the oil fume. An oil screen lower frame is also arranged between the two oil screen brackets, and the three are connected in sequence to form an inverted door-shaped structure. The oil screen is arranged on the inverted door-shaped structure through a buckle structure.

[0012] In some embodiments, a disassembly handle hole for easy disassembly and assembly is arranged on the oil screen.

[0013] In some embodiments, the opening and closing panel assembly includes a lifting panel, an opening and closing panel, and a hinge. The lifting panel is movably arranged in front of the main body of the range hood. The opening and closing panel assembly is arranged at the back position of the lifting panel assembly, and its top is hinged to the main body of the range hood. One end of the hinge is arranged on the main body of the range hood, and the other end passes through the opening and closing panel and is hinged to the lifting panel.

[0014] In some embodiments, the driving assembly includes a driving device, a lead screw, and a slider. A chute is formed on the opening and closing panel. The output end of the driving device is connected to the lead screw. A slider is slidably arranged on the lead screw and the slider moves in a cycle along the lead screw. One end of the slider away from the lead screw passes through the chute and is fixedly connected to the lifting panel. The driving device drives the lifting panel to move to drive the opening and closing panel to perform a flipping motion.

[0015] In some embodiments, the driving assembly further includes an elastic element arranged thereon. An opening is formed on the lifting panel. One end of the elastic element passes through the opening and is connected to the upper end of the opening and closing panel, and the other end is connected to the lower end of the lifting panel.

[0016] In some embodiments, a guiding slide rail is further included. The guiding slide rail is arranged on both sides of the opening and closing panel. The opening and closing panel is slidably connected to the lifting panel through the guiding slide rail.

[0017] In some embodiments, the opening and closing panel assembly further includes a first hinge and a second hinge. The first hinge and the second hinge are hinged together through a hinge shaft. The first hinge is arranged on the main body of the range hood, and the second hinge is arranged at the upper end of the opening and closing panel.

[0018] In some embodiments, it further includes baffles arranged on both sides of the opening and closing panel. The range hood main body has a smoke collecting cavity, and the baffles extend outside the smoke collecting cavity or retract into the smoke collecting cavity along with the flipping movement of the opening and closing panel.

[0019] Compared with the prior art, the present invention has at least the following beneficial effects:

[0020] 1. The flipable oil mesh structure of the present invention has a simple structure, which can make the arrangement position of the oil mesh no longer limited, thus avoiding the influence on the smoking effect due to the bending of the oil smoke path.

[0021] 2. It is reasonably designed and convenient to disassemble and assemble, which can further improve the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of the range hood in the opened state according to an embodiment of the present invention;

[0023] Figure 2 is a schematic structural diagram of the range hood in the closed state according to an embodiment of the present invention;

[0024] Figure 3 is a side view of the range hood according to an embodiment of the present invention;

[0025] Figure 4 is an exploded schematic diagram of the range hood according to an embodiment of the present invention;

[0026] Figure 5 is a partial structural schematic diagram of the range hood according to an embodiment of the present invention;

[0027] Figure 6 is a schematic diagram of the working principle of the range hood according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The following embodiments are used to illustrate the present invention, but the present invention is not limited by these embodiments. Modifying the specific implementation manners of the present invention or making equivalent replacements for some technical features without departing from the spirit of the present invention shall be covered within the scope of the technical solutions claimed by the present invention.

[0029] As Figures 1 to 6 shown, this embodiment provides a flipable oil mesh structure, which is applied to a range hood. The range hood has a range hood main body 1, and an air inlet 11 is opened on the range hood main body 1, including:

[0030] An opening and closing panel assembly 2, and the opening and closing panel assembly 2 is movably arranged on the range hood main body 1 through an opening and closing assembly 4;

[0031] The oil screen assembly 3 is arranged on the opening and closing assembly 4. The oil screen assembly 3 can follow the opening and closing of the opening and closing assembly 4 to open and close the air inlet 11. The oil screen assembly 3 is connected to the opening and closing assembly 4 through a detachable structure;

[0032] The driving assembly 5, the output end of the driving assembly 5 is connected to the opening and closing panel assembly 2. The driving assembly 5 drives the opening and closing panel assembly 2 to move to drive the opening and closing assembly 4 to perform a flipping motion, and drives the oil screen assembly 3 to open or close the air inlet 11 through the action of the opening and closing assembly 4.

[0033] In this embodiment, the range hood drives the opening and closing panel assembly 2 to drive the opening and closing assembly 4 to flip outwards to open, and then drives the oil screen assembly 3 to flip outwards. The fan of the range hood body 1 works to discharge the cooking fumes generated through the oil screen assembly 3 outwards. And the direction of the air inlet 11 after the oil screen assembly 3 is opened is basically the same as the direction of the fume rising and is very close to the fume source, which can quickly inhale the fumes. At the same time, the opening and closing panel assembly 2 further plays a role in blocking the fumes from escaping forward, playing a role in gathering the fumes, thus greatly improving the fume extraction effect. When the fan of the range hood body 1 stops working, the driving assembly 5 drives the opening and closing panel assembly 2 to drive the opening and closing assembly 4 to flip inwards to perform a closing action, and drives the oil screen assembly 3 to close the air inlet 11 through the flipping motion of the opening and closing panel 22. The oil screen assembly 3 retracts and hides inside the range hood body 1. Its structure is simple, which can make the layout position of the oil screen 31 no longer limited, thus avoiding affecting the smoking effect due to the bending of the fume path.

[0034] Further, the oil screen assembly 3 includes an oil screen 31 and an oil screen bracket 32. The opening and closing assembly includes a connecting rod 41. One end of the connecting rod 41 is hinged to the range hood body 1, and the other end is hinged to one end of the oil screen bracket 32. The other end of the oil screen bracket 32 is hinged to the movable end of the opening and closing panel assembly 2. The oil screen 31 is detachably arranged on the oil screen bracket 32. Its structure is simple, which can make the negative pressure area of the range hood move downwards to further improve the smoking effect of the range hood.

[0035] Specifically, there are two oil screen brackets 32, and the two oil screen brackets 32 are symmetrically arranged on both sides of the fume main body 1 respectively. An oil screen lower frame 33 is also arranged between the two oil screen brackets 32. The three are connected in sequence to form an inverted door-shaped structure. The oil screen 31 is arranged on the inverted door-shaped structure through a buckle structure. Its design is reasonable, convenient for disassembly and assembly, and can further improve the reliability of the oil screen installation.

[0036] Preferably, a disassembly handle hole for easy disassembly and assembly is arranged on the oil screen 31. Its structure is simple and the operation is convenient, which can effectively improve the user experience.

[0037] In this embodiment, the lower end of the opening and closing panel assembly 2 is hingedly connected to one end of the oil screen bracket 32. The other end of the oil screen bracket 32 is hingedly connected to the connecting rod 41 by an axially-positioned screw. One end of the connecting rod 41 away from the oil screen bracket 32 is hingedly connected to the main body 1 of the range hood by a riveting joint. The oil screen bracket 32, the opening and closing panel 22, and the smoke collecting hood of the main body 1 of the range hood together form a four-bar linkage mechanism. During the opening and closing process of the opening and closing panel 22, since the oil screen 31 is fixedly installed on the oil screen bracket 32, when the oil screen bracket 32 is synchronously opened with the opening and closing panel 22, the oil screen 31 extends downward, moving the negative pressure area of the range hood downward, which can further improve the smoke extraction effect of the range hood. In addition, a connecting seat is fixedly welded on the opening and closing panel assembly 2. The oil screen bracket 32 and the connecting seat are jointly hinged together by an axially-positioned screw and a nut. The oil screen bracket 32 and the connecting seat together form a frame for fixing the oil screen 31. For the convenience of disassembly, assembly and cleaning by users during daily use, the frame formed by the oil screen bracket 32 and the connecting seat can be used to assemble the oil screen 31, and the oil screen 31 can preferably be assembled with the frame through a snap member.

[0038] Further, the opening and closing panel assembly 2 includes a lifting panel 21, an opening and closing panel 22, and a hinge 23. The lifting panel 21 is movably arranged in front of the main body 1 of the range hood. The opening and closing panel assembly 2 is arranged at the back position of the lifting panel 21 assembly, and its top is hingedly connected to the main body 1 of the range hood. One end of the hinge 23 is arranged on the main body 1 of the range hood, and the other end passes through the opening and closing panel 22 and is hingedly connected to the lifting panel 21. Its structure is simple and the design is reasonable, further improving the composite movement stability of the lifting panel and the opening and closing panel.

[0039] In this embodiment, the overall movement of the range hood is a composite movement of the opening and closing and lifting of the panel. When the driving assembly 5 drives the lifting panel 21 to rise relative to the opening and closing panel 22, at the same time, the lifting panel 21 drives the opening and closing panel 22 to move through the hinge 23, so that the opening and closing panel 22 and the connecting rod 41 are synchronously turned outwards. Through the turning movement of the connecting rod 41, the oil screen assembly 3 is driven to open the air inlet 11. When the driving assembly 5 drives the lifting panel 21 to descend relative to the opening and closing panel 22, at the same time, the lifting panel 21 drives the opening and closing panel 22 to move through the hinge 23, so that the opening and closing panel 22 and the connecting rod 41 are synchronously turned inwards. Through the turning movement of the connecting rod 41, the oil screen assembly 3 is driven to close the air inlet 11, and the oil screen assembly 3 retracts and hides inside the main body 1 of the range hood. Its structure is simple, the panel of the range hood can realize the composite movement of turning and lifting, and at the same time, the smoothness of the panel composite movement is effectively improved. In this embodiment, in order to improve the aesthetics of the range hood, a glass panel can be arranged in front of the lifting panel 21. The glass panel is preferably made of glass, but is not limited to glass, and more suitable materials can also be selected according to the actual situation.

[0040] Further, the driving assembly 5 includes a driving device 51, a screw rod, and a slider 52. A sliding groove 24 is formed in the opening and closing panel 22. The output end of the driving device 51 is connected to the screw rod. The slider 52 is slidably arranged on the screw rod and moves vertically in a cycle along the screw rod. One end of the slider 52 away from the screw rod passes through the sliding groove 24 and is fixedly connected to the lifting panel 21. The driving device 51 drives the lifting panel 21 to move, driving the opening and closing panel 22 to perform a flipping motion. Its structure is simple, and the stability of the combined movement of the lifting panel and the opening and closing panel can be further improved.

[0041] In this embodiment, the driving device 51 is preferably a motor, but is not limited to a motor. A suitable driving device 51 can also be selected according to actual needs. In this embodiment, the driving device 51 is described by taking a motor as an example, and other types of driving devices 51 will not be elaborated. In this embodiment, the opening and closing panel 22 is connected to the hinge assembly so that the opening and closing panel 22 does not need to bear its own load. Therefore, setting the motor on the opening and closing panel 22 can make the structural strength of the fixed position of the motor better. In addition, the combined movement of the opening and closing panel 22 and the lifting panel 21 is realized by a single motor drive. A sliding groove 24 is formed in the vertical direction at the middle position of the opening and closing panel 22. The output end of the motor is connected to the screw rod. A spiral guide rail is arranged on the outer side wall of the screw rod. The slider 52 is slidably arranged on the screw rod. The slider 52 moves in a cycle on the screw rod through a ball nut, so that the rotational motion of the motor can be converted into a linear motion. One end of the slider 52 away from the screw rod passes through the sliding groove 24 and is fixedly installed together with the lifting panel 21. The motor works to drive the slider 52 to lift, driving the lifting panel 21 to lift synchronously relative to the opening and closing panel 22, so that the opening and closing panel 22 makes an opening and closing motion.

[0042] Preferably, the driving assembly 5 further includes an elastic element 53 arranged thereon. An opening 25 is formed in the lifting panel 21. One end of the elastic element 53 passes through the opening 25 and is connected to the upper end of the opening and closing panel 22, and the other end is connected to the lower end of the lifting panel 21. Its structure is simple and compact, and it can effectively avoid the jitter phenomenon caused by excessive load during the movement process.

[0043] In this embodiment, the elastic element 53 is preferably a spring, but is not limited to a spring. An appropriate elastic component can be selected according to actual requirements. In this embodiment, the elastic element 53 is described by taking a spring as an example. Other types of elastic components will not be elaborated. In addition, due to the large mass of the lifting panel 21 itself, during the single-motor driving process, the motor bears a large load and may be prone to jitter during movement, and the service life of the motor will also be affected. Therefore, springs are symmetrically arranged on both sides of the lifting panel 21. The upper ends of the springs are connected to the opening and closing panel 22 through mounting brackets, and the lower ends of the springs are connected to the lifting panel 21 through mounting brackets. When the lifting panel 21 is in the initial state, the springs are in a stretched state. When the lifting panel 21 rises, the springs gradually return to the natural state, and the elastic force of the springs balances part of the gravity of the lifting panel 21, thereby avoiding the phenomenon of movement jitter due to excessive load during movement.

[0044] Specifically, it further includes guiding slide rails 8. The guiding slide rails 8 are arranged on both sides of the opening and closing panel 22. The opening and closing panel 22 is slidably connected to the lifting panel 2 through the guiding slide rails 8. Its structure is simple and the design is reasonable, which can make the combined movement of the lifting panel and the opening and closing panel achieve linkage and avoid problems such as asynchronous left and right movement or skew.

[0045] In this embodiment, guiding slide rails are symmetrically arranged on both sides of the opening and closing panel 22. The opening and closing panel 22 is slidably connected to the lifting panel 21 through the guiding slide rails, so as to guide the sliding movement between the lifting panel 21 and the opening and closing panel 22, and further ensure the stability of the relative sliding of the lifting panel 21 and the opening and closing panel 22. In addition, a limiting member is fixedly installed on the lifting panel 21 so that the lifting panel 21 performs lifting movement within a preset stroke range. The limiting member is preferably made of rubber material and is fixedly installed near the guiding slide rail. Limiting is performed at a position 3 mm to 5 mm before the maximum position of the stroke of the lifting panel 21. The range hood controls the movement stroke of the lifting panel 21 by detecting the stall current of the motor at the limit position.

[0046] In this embodiment, a connecting bracket is welded and fixed on the side of the lifting panel 21 close to the opening and closing panel 22. One end of the hinge 23 passes through the opening and closing panel 22 and is hinged to the connecting bracket through an axially-positioned screw, and the other end is hinged and fixed to the side plate of the range hood main body 1 through a riveting joint. Hinges 23 are symmetrically arranged on both sides of the range hood main body 1. The combined movement of the lifting panel 21 and the opening and closing panel 22 is realized through the connecting rod 41, and its synchronization is good, avoiding problems such as asynchronous left and right movement or skew.

[0047] Furthermore, the opening and closing panel assembly 2 further includes a first hinge 27 and a second hinge 28. The first hinge 27 and the second hinge 28 are hinged together by a hinge 23. The first hinge 27 is disposed on the main body 1 of the range hood, and the second hinge 28 is disposed at the upper end of the opening and closing panel 22. Its design is reasonable, which can further improve the stability of the flipping movement of the opening and closing panel.

[0048] In this embodiment, the upper part of the opening and closing panel 22 is fixedly connected to the front end of the main body 1 of the range hood by screws through hinges. The first hinge 27 and the second hinge 28 are hinged together by a hinge 23, so that the opening and closing panel 22 rotates around the front end of the main body 1 of the range hood. Driven by the lifting movement of the lifting panel 21, it makes a synchronous opening and closing movement, so that the opening and closing movement of the opening and closing panel 22 and the lifting movement of the lifting panel 21 achieve a linkage effect.

[0049] Specifically, it further includes baffles 7 provided on both sides of the opening and closing panel 22. The main body 1 of the range hood has a smoke collecting cavity 12. The baffles 7 extend outside the smoke collecting cavity 12 or retract into the smoke collecting cavity 12 with the flipping movement of the opening and closing panel 22. Its structure is simple and the design is reasonable, which can form a smoke collecting plate together with the opening and closing panel to expand the smoke collecting area of the range hood.

[0050] Particularly, it further includes an oil cup 8. The oil cup 8 is disposed at the bottom of the main body 1 of the range hood. Its structure is simple and the design is reasonable, which is convenient for collecting the grease generated by the range hood.

[0051] In this embodiment, the baffle 7 extends outside the smoke collecting cavity 12 or retracts into the smoke collecting cavity 12 with the flipping movement of the opening and closing panel 22. When the baffle 7 extends outside the smoke collecting cavity 12 with the opening and closing panel 22, the baffle 7 and the opening and closing panel 22 together form a smoke collecting plate to expand the smoke collecting area of the range hood. At the same time, the oil mesh 31 is located at the lower part of the main body 1 of the range hood, which can make the negative pressure area of the main body 1 of the range hood lower, so that the oil fume generated during the cooking process can be sucked and exhausted before it spreads. In addition, a lighting lamp for illumination is adhesively fixed on the opening and closing panel 22, which is convenient for users to operate and thus improves the user experience. In addition, when the oil mesh 31 is in the open state, the oil mesh 31 is the main contact part with the oil fume. Since the oil mesh 31 is arranged obliquely downward from the end close to the opening and closing panel 22 to the end close to the connecting rod 41, the grease condensed on the oil mesh 31 flows along the front and back directions of the oil mesh 31, then flows into the smoke collecting cavity 12 along the outer shell of the main body 1 of the range hood, and finally is introduced into the bottom plate to enter the oil cup 8. In the closed state, since the end of the oil mesh 31 close to the opening and closing panel 22 is obliquely above the end close to the connecting rod 41, the condensed oil on the oil mesh 31 is directly introduced into the bottom plate to enter the oil cup 8, so that the range hood has a good oil path structure.

[0052] Such as Figure 6As shown, where the solid line represents the open position of the component and the dashed line represents the closed position of the component. The working principle of the range hood in this embodiment is as follows. The AB rod is the connecting rod 41, the BC rod is the oil mesh bracket 32, the CE rod is the opening and closing panel 22, and the DF rod is the hinge 23. Both point A and point F are hinged and installed on the range hood main body 1. When the driving device 51 drives the lifting panel 21 to move upward, the movement of the lifting panel 21 drives point D to rotate clockwise around the hinge point F, thereby driving the CE rod to rotate clockwise around point E to push forward, so that point C moves forward through the movement of the CE rod, and then the flipping of the BC rod is realized.

[0053] The working steps of the range hood in this embodiment are as follows:

[0054] When the range hood is working, the lifting panel 21 moves upward under the action of the driving device 51. The movement of the lifting panel 21 drives the connecting rod 41 to move obliquely upward, so that the opening and closing panel 22 flips outward. At the same time, the opening and closing panel 22 drives the oil mesh 31 to open the air inlet 11. The fan assembly of the range hood works to suck the air in the kitchen through the oil mesh 31 and discharge the oil fume to the common flue or outdoors. And after the oil mesh 31 is opened, the direction of the air inlet 11 is basically the same as the direction of the oil fume rising and is very close to the oil fume source, so that the oil fume can be quickly sucked in. At the same time, the lifting panel 21 and the opening and closing panel 22 further play a role in blocking the oil fume from escaping forward; when the range hood stops working, the lifting panel 21 moves downward, and the connecting rod 41 rotates downward along the rear direction to drive the opening and closing panel 22 to flip inward and close, thereby driving the oil mesh 31 to close.

[0055] Adopting the above scheme, compared with the prior art, when the range hood in this embodiment is in use, the compound movement of the lifting panel 21 and the opening and closing panel 22 drives the oil mesh 31 to flip outward. The oil fume generated during cooking is discharged outward through the air inlet 11. And after the oil mesh 31 is opened, the direction of the air inlet 11 is basically the same as the direction of the oil fume rising and is very close to the oil fume source during cooking, so that the oil fume can be quickly sucked in. At the same time, the flipping movement of the opening and closing panel 22 drives the oil mesh assembly 3 to close the air inlet 11, and the oil mesh assembly 3 retracts and hides inside the range hood main body 1. Its structure is simple, which can make the layout position of the oil mesh 31 no longer limited, thus avoiding the influence on the smoking effect due to the bending of the oil fume path.

[0056] The above are only some embodiments of the present invention. For those of ordinary skill in the art, without departing from the inventive concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A reversible oil screen structure is applied to a range hood. The range hood has a hood main body (1), and an air inlet (11) is provided on the hood main body (1). It is characterized in that, Comprising: An opening and closing panel assembly (2), the opening and closing panel assembly (2) being movably arranged on the main body (1) of the range hood through an opening and closing assembly (4); An oil net assembly (3), the oil net assembly (3) being arranged on the opening and closing assembly (4), the oil net assembly (3) being capable of opening and closing following the opening and closing of the opening and closing assembly (4) to open and close the air inlet (11), and the oil net assembly (3) being connected to the opening and closing assembly (4) through a detachable structure; A driving assembly (5), the output end of the driving assembly (5) being connected to the opening and closing panel assembly (2), the driving assembly (5) driving the opening and closing panel assembly (2) to move so as to drive the opening and closing assembly (4) to perform a flipping motion, and driving the oil net assembly (3) to open or close the air inlet (11) through the action of the opening and closing assembly (4); The opening and closing panel assembly (2) includes a lifting panel (21), an opening and closing panel (22) and a hinge (23), wherein the lifting panel (21) is movably arranged in front of the main body (1) of the range hood, the opening and closing panel assembly (2) is arranged at the back position of the lifting panel (21) assembly and its top is hinged to the main body (1) of the range hood, one end of the hinge (23) is arranged on the main body (1) of the range hood, and the other end passes through the opening and closing panel (22) and is hinged to the lifting panel (21); The oil net assembly (3) includes an oil net (31) and an oil net bracket (32), the opening and closing assembly (4) includes a connecting rod (41), one end of the connecting rod (41) is hinged to the main body (1) of the range hood, the other end is hinged to one end of the oil net bracket (32), the other end of the oil net bracket (32) is hinged to the movable end of the opening and closing panel assembly (2), and the oil net (31) is detachably arranged on the oil net bracket (32); 2. The flip - able oil screen structure according to claim 1, characterized in that, There are two oil net brackets (32), and the two oil net brackets (32) are symmetrically arranged on both sides of the main body (1) of the range hood respectively. An oil net lower frame (33) is also arranged between the two oil net brackets (32), and the three are connected in sequence to form an inverted door-shaped structure, and the oil net (31) is arranged on the inverted door-shaped structure through a snap structure; 3. The flipable oil screen structure according to claim 2, characterized in that, A disassembly handle hole for facilitating disassembly and assembly is arranged on the oil net (31); 4. The flip - able oil screen structure according to claim 1, characterized in that, The driving assembly (5) includes a driving device (51), a screw rod and a slider (52), wherein a chute (24) is formed on the opening and closing panel (22), the output end of the driving device (51) is connected to the screw rod, the slider (52) is slidably arranged on the screw rod and the slider (52) moves cyclically along the screw rod, one end of the slider (52) far away from the screw rod passes through the chute (24) and is fixedly connected to the lifting panel (21), and the driving device (51) drives the lifting panel (21) to move so as to drive the opening and closing panel (22) to perform a flipping motion.

5. A reversible oil screen structure according to claim 1, characterized in that, The driving component (5) further includes an elastic element (53). An opening (25) is formed in the lifting panel (21). One end of the elastic element (53) passes through the opening (25) and is connected to the upper end of the opening and closing panel (22), and the other end is connected to the lower end of the lifting panel (21).

6. A reversible oil screen structure according to claim 1, characterized in that, It further includes a guiding slide rail (8). The guiding slide rail (8) is arranged on both sides of the opening and closing panel (22). The opening and closing panel (22) is slidably connected to the lifting panel (21) through the guiding slide rail (8).

7. A reversible oil screen structure according to claim 1, characterized in that, The opening and closing panel assembly (2) further includes a first hinge (27) and a second hinge (28). The first hinge (27) and the second hinge (28) are axially hinged together through a hinge (23). The first hinge (27) is arranged on the range hood main body (1), and the second hinge (28) is arranged at the upper end of the opening and closing panel (22).

8. A reversible oil screen structure according to any one of claims 1 to 7, characterized in that, It further includes baffles (7) arranged on both sides of the opening and closing panel (22). The range hood main body (1) has a smoke collecting cavity (12). The baffles (7) extend out of the smoke collecting cavity (12) or retract into the smoke collecting cavity (12) along with the flipping movement of the opening and closing panel (22).

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