Range hood with smoke suction port with lifting function

Abstract

A range hood with a smoke suction port with a lifting function comprises a main machine, an air cabinet is installed at the top of the main machine, a smoke suction volute is arranged in the air cabinet, an air inlet of the smoke suction volute is communicated with an air duct in the main machine, and when the smoke suction volute works, oil smoke is sucked in from the air duct and exhausted outwards through an exhaust seat at the top of the air cabinet; a mounting cavity is formed in the bottom of the main machine, and a smoke guide assembly is arranged in the mounting cavity; the smoke guiding assembly comprises a lifting frame installed on the main machine through a lifting sliding rail, a lifting power device is installed between the lifting frame and the main machine, and the lifting power device is used for driving the lifting frame to move up and down in the direction limited by the lifting sliding rail. The smoke guiding device has the beneficial effects that lifting of the smoke guiding assembly, opening of the telescopic frame and opening and closing of the smoke guiding plate are coordinated through the linkage mechanism, the structure action is coherent, use is convenient, and good user experience is achieved.

Description

Technical Field

[0001] This invention relates to the field of range hood technology, specifically a range hood with a lifting function for the smoke inlet. Background Technology

[0002] Range hoods are essential household appliances in modern kitchens for removing cooking fumes and smoke. Their main function is to promptly remove these fumes, steam, and odors during cooking to maintain clean kitchen air. Currently, the most widely used range hoods on the market include top-mounted, side-mounted, and downdraft types.

[0003] Among them, top-mounted range hoods are the most commonly used in family kitchens due to their relatively simple structure, attractive appearance, and mature installation methods. Existing top-mounted range hoods are usually installed directly above the stove, with their smoke inlet located at the bottom or lower part of the unit. The internal fan creates negative pressure at the smoke inlet, drawing the cooking fumes into the unit and expelling them outdoors.

[0004] However, in actual use, existing top-mounted range hoods still have the following obvious shortcomings: First, the smoke inlet is fixed in position and located at the top of the unit, which is far from the cookware. During cooking, fumes usually spread outwards as soon as they are generated above the cookware. However, due to the large vertical distance between the smoke inlet and the source of the fumes, the fumes spread into the surrounding space before they are drawn into the smoke inlet, causing some of the fumes to escape into the kitchen environment and affecting the smoke extraction effect.

[0005] Secondly, because the smoke inlet is located high up, the fan power often needs to be increased in order to improve the smoke extraction efficiency. This results in the range hood being noisier and consuming more energy when it is working, which is not conducive to the user experience and energy-saving requirements.

[0006] In addition, although some existing technologies attempt to guide the smoke to the smoke inlet by setting up smoke guide plates or smoke blocking structures, such smoke guide structures are usually fixed structures or simple flipping structures, which cannot be flexibly adjusted according to different cooking conditions, cookware height or usage needs. The smoke guiding effect is limited, and it is easy to affect the operating space or aesthetics when not in use.

[0007] Furthermore, in existing range hoods, the linkage between the smoke inlet and the smoke guiding structure is relatively simple. They usually lack a smoke guiding structure that moves synchronously with the position of the smoke inlet. As the smoke inlet approaches or moves away from the cookware, the smoke guiding path is unstable, and the fumes can still easily escape from the side or front.

[0008] In summary, existing top-mounted range hoods generally suffer from problems such as the smoke inlet being too far from the source of cooking fumes, easy escape of fumes, limited smoke extraction efficiency, and insufficient structural adjustability. They cannot simultaneously guarantee effective smoke extraction while also achieving energy efficiency, low noise, and a good user experience. Therefore, further improvements are necessary. Summary of the Invention

[0009] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a range hood with a simple structure, low manufacturing cost, adjustable smoke inlet position, and effective guidance of oil fume flow path.

[0010] The purpose of this invention is achieved in the following way: a range hood with a lifting function for the smoke inlet, which includes a main unit, a fan cabinet installed on the top of the main unit, a smoke volute inside the fan cabinet, the air inlet of the smoke volute being connected to the air duct inside the main unit, and when the smoke volute is working, it draws in oil fumes from the air duct and discharges them to the outside through the exhaust seat on the top of the fan cabinet. The main unit has an installation cavity at its bottom, and a smoke guide component is installed inside the installation cavity; The smoke guiding component includes a lifting frame mounted on the main unit via a lifting slide rail. A lifting power device is installed between the lifting frame and the main unit. The lifting power device is used to drive the lifting frame to move up and down along the direction defined by the lifting slide rail. The lifting frame has an installation port at its front end, and a telescopic frame is hinged to the bottom of the installation port. Guide wheels are provided at the left and right ends of the telescopic frame. The guide wheels slide in the corresponding grooves at the left and right ends of the installation cavity to guide and restrict the movement of the telescopic frame. The front end of the telescopic frame is provided with a smoke inlet, which is connected to the air duct inside the main unit through a smoke guiding channel formed inside the lifting frame. Smoke guide plates are also installed on the left and right sides of the bottom of the main unit via door hinges. The door hinges are connected to the lifting frame via a linkage mechanism, so that the smoke guide plates are driven to open and close synchronously by the linkage mechanism during the up and down movement of the lifting frame.

[0011] Furthermore, two sets of the linkage mechanism are provided and symmetrically arranged on the left and right sides of the mounting cavity.

[0012] Furthermore, the linkage mechanism includes a first hanger and a second hanger hingedly mounted on the upper part of the inner side of the mounting cavity. The first hanger and the second hanger are hinged together by a connecting rod. The first hanger is also hinged to the lifting frame by a pull rod, and the second hanger is hinged to the door hinge by a linkage rod.

[0013] Furthermore, the two ends of the connecting rod are respectively hinged and installed at the middle positions of the first and second lifting rods.

[0014] Furthermore: the door hinge includes a base fixedly installed on the main unit, a crank arm hingedly installed on the base, a connecting seat provided on the crank arm, a smoke guide plate installed on the connecting seat, a hinge seat provided in the middle of the crank arm, and the hinge seat hingedly connected to the linkage rod.

[0015] Furthermore: the telescopic frame is a triangular frame structure that is wider at the bottom and narrower at the top, and the smoke inlet is elongated and positioned on the front of the telescopic frame.

[0016] Furthermore, a guide plate extending towards the main unit is provided on the back side of the smoke inlet.

[0017] Furthermore, an upper guide plate is provided on the inner wall of the front side of the mounting cavity, and a lower guide plate is provided on the top of the telescopic frame.

[0018] Furthermore, the lifting power device is an electric telescopic rod.

[0019] The beneficial effects of this invention are: 1. Simple structure, low manufacturing cost, and improved market competitiveness.

[0020] 2. This invention features a height-adjustable smoke guide assembly at the bottom of the main unit. A lifting mechanism drives the lifting frame to move up and down along a sliding rail, allowing the height of the smoke inlet to be adjusted according to actual cooking needs. During use, the smoke guide assembly can be lowered closer to the cookware, bringing the smoke inlet closer to the source of the fumes. This ensures that the fumes are drawn in before they spread widely, effectively reducing escape and improving overall smoke extraction efficiency. Conversely, when not in use or when a larger operating space is required, the smoke guide assembly can be raised back to its original position, balancing practicality and space utilization.

[0021] 3. The smoke guiding assembly includes a telescopic frame that can rotate relative to the lifting frame. When the telescopic frame is opened downwards, a top air intake channel is formed between its top and the main unit. Simultaneously, the front face of the telescopic frame itself is equipped with a smoke inlet, thus creating a dual air intake structure with the top air intake channel and the front smoke inlet working together when the smoke guiding assembly is deployed. This structure can draw in fumes from different directions, which helps to expand the effective smoke extraction range and ensures that fumes are captured promptly during their ascent and diffusion, further improving the smoke extraction effect.

[0022] 4. This invention, through the implementation of a linkage mechanism, enables the lifting frame to synchronously drive the smoke guide plate to open and close during its vertical movement. When the telescopic frame opens downwards and the smoke guide assembly is in operation, the smoke guide plate opens simultaneously, which helps to guide and block the fumes, reducing their escape from the side or front. When the smoke guide assembly rises and closes, the smoke guide plate retracts and closes simultaneously, restoring the external structure of the range hood to a relatively flat and regular shape. This not only avoids the smoke guide plate being exposed and affecting the operating space but also improves the overall aesthetics and consistency of the machine.

[0023] 5. In this invention, the lifting and lowering of the smoke guide assembly, the opening of the telescopic frame, and the opening and closing of the smoke guide plate are coordinated through a linkage mechanism. Users can switch between the smoking state and the storage state without having to perform multiple or complicated operations. The structure and actions are smooth and convenient to use, providing a better user experience. Attached Figure Description

[0024] Figure 1 This is a diagram showing the effect of the invention in the closed telescopic frame state.

[0025] Figure 2 , 3 This is a diagram showing the telescopic frame of the present invention in its open state.

[0026] Figure 4 This is a schematic diagram showing the flow of oil fumes when the telescopic frame is in the open state in this invention.

[0027] Figure 5 This is an illustration showing the telescopic frame of the present invention in a closed state, with the host computer hidden.

[0028] Figure 6 This is an illustration of the telescopic frame of the present invention in the open state, with the host computer hidden.

[0029] Figure 7 In this invention Figure 6 A magnified view of the local structure.

[0030] Figure 8 This is an assembly diagram of the lifting frame and the telescopic frame in this invention.

[0031] Figure 9 This is an exploded view of the lifting frame and the telescopic frame in this invention.

[0032] Explanation of reference numerals in the attached drawings: 1. Main unit; 11. Air duct; 12. Mounting cavity; 13. Slide groove; 14. Upper guide plate; 2. Air handling unit; 3. Lifting slide rail; 4. Lifting frame; 41. Mounting port; 5. Lifting power unit; 6. Telescopic frame; 61. Guide wheel; 62. Smoke inlet; 63. Guide plate; 64. Lower guide plate; 7. Door hinge; 71. Base; 72. Crank arm; 73. Connecting seat; 74. Hinge seat; 8. Smoke guide plate; 9. First hanging rod; 92. Second hanging rod; 93. Connecting rod; 94. Pull rod; 95. Linkage rod. Detailed Implementation

[0033] The invention will be further described in detail below with reference to the accompanying drawings. A range hood with a lifting smoke inlet includes a main unit 1, a fan housing 2 installed on the top of the main unit 1, a smoke extraction volute disposed inside the fan housing 2, and an air inlet of the smoke extraction volute being connected to an air duct 11 inside the main unit 1. When the smoke extraction volute is working, it draws in cooking fumes from the air duct 11 and discharges them outward through an exhaust seat on the top of the fan housing 2. The bottom of the main unit 1 has an installation cavity 12, and a smoke guiding assembly is disposed inside the installation cavity 12. The smoke guiding assembly includes a lifting frame 4 mounted on the main unit 1 via a lifting slide rail 3. A lifting power device 5 is installed between the lifting frame 4 and the main unit 1. The lifting power device 5 is used to drive the lifting frame 4 to move up and down along the direction defined by the lifting slide rail 3. The lifting frame 4 has an installation port 41 at its front end. A telescopic frame 6 is hinged to the bottom of the installation port 41. Guide wheels 61 are provided at the left and right ends of the telescopic frame 6. The guide wheels 61 slide in the corresponding grooves 13 at the left and right ends of the mounting cavity 12 to guide and restrict the movement of the telescopic frame 6. The front end face of the telescopic frame 6 is provided with a smoke inlet 62, and the smoke inlet 62 is connected to the air duct 11 inside the main unit 1 through the smoke guiding channel formed inside the lifting frame 4. Smoke guide plates 8 are installed on the left and right sides of the bottom of the main unit 1 through door hinges 7. The door hinges 7 are connected to the lifting frame 4 through a linkage mechanism, so that the lifting frame 4 drives the smoke guide plates 8 to open and close synchronously through the linkage mechanism during the up and down movement.

[0034] In this embodiment: During use, the lifting power device 5 is activated, driving the lifting frame 4 to move downwards along the lifting slide rail 3, causing the smoke guide assembly to move closer to the stove. Since the lifting frame 4 maintains a conductive relationship with the internal air duct 11 of the main unit 1, the smoke extraction volute can form an effective negative pressure zone at the location of the smoke guide assembly during operation.

[0035] When the lifting frame 4 descends, the telescopic frame 6, hinged at its front end, unfolds downwards under the combined constraint of the guide wheel 61 and the slide groove 13, ensuring stable movement and preventing swaying or deviation. The smoke inlet 62 at the front end of the telescopic frame 6 is close to the cookware after unfolding, allowing the fumes to be directly drawn in at the initial stage of generation.

[0036] At the same time, the up and down movement of the lifting frame 4 drives the door hinge 7 to move synchronously through the linkage mechanism, so that the smoke guide plate 8 opens when the smoke guide component is unfolded, which plays a role in blocking and guiding the oil fumes; when the smoke guide component rises and retracts, the smoke guide plate 8 closes synchronously, so that the bottom shape of the range hood returns to its normal shape.

[0037] Through the combination of the above structure and movement, the present invention achieves the effects of adjustable smoke inlet height, smoke position closer to the source of oil fumes, and automatic linkage of the smoke guiding structure, which significantly improves the problems of fixed smoke inlet position and easy escape of oil fumes in existing top-mounted range hoods.

[0038] In one embodiment, two sets of the linkage mechanism are provided and symmetrically arranged on the left and right sides of the mounting cavity 12. By providing a linkage mechanism on each of the left and right sides of the mounting cavity 12, the smoke guide plates 8 on the left and right sides can open or close synchronously and symmetrically when the lifting frame 4 moves up and down. This structure avoids the problem of uneven force or asynchronous action that may be caused by unilateral drive, and ensures that the smoke guide plates maintain good symmetry and stability in the working state. This symmetrical linkage structure is conducive to forming a uniform smoke guiding space, improving the oil fume guiding effect, and enhancing the reliability of the overall structure operation.

[0039] In one embodiment: the linkage mechanism includes a first hanger 9 and a second hanger 92 hingedly mounted on the upper part of the inner side of the mounting cavity 12. The first hanger 9 and the second hanger 92 are hingedly connected by a connecting rod 93. The first hanger 9 is also hinged to the lifting frame 4 by a pull rod 94. The second hanger 92 is hinged to the door hinge 7 by a linkage rod 95.

[0040] When the lifting frame 4 moves up and down under the drive of the lifting power device 5, the lifting frame drives the first hanging rod 9 to rotate through the pull rod 94. The first hanging rod 9 then drives the second hanging rod 92 to rotate synchronously through the connecting rod 93, and finally drives the door hinge 7 to move through the linkage rod 95.

[0041] This multi-bar hinged linkage structure can effectively convert the linear motion of the lifting frame into the rotational action of the door hinge. The motion transmission path is clear, the structure is stable, and it is suitable for realizing the automatic synchronous opening and closing of the smoke guide plate.

[0042] In one embodiment, the two ends of the connecting rod 93 are respectively hinged and installed at the middle positions of the first lifting rod 9 and the second lifting rod 92.

[0043] The connecting rod 93 is positioned in the middle of the first lifting rod 9 and the second lifting rod 92, making the force transmission path smoother and avoiding force concentration at the ends. This structure helps improve the durability and consistency of the linkage mechanism during repeated lifting and lowering processes, thereby ensuring the reliability of the smoke guide plate's opening and closing action.

[0044] In one embodiment: the door hinge 7 includes a base 71 fixedly mounted on the host 1, a crank arm 72 hingedly mounted on the base 71, a connecting seat 73 provided on the crank arm 72, the smoke guide plate 8 being mounted on the connecting seat 73, and a hinge seat 74 provided in the middle of the crank arm 72, the hinge seat 74 being hingedly connected to the linkage rod 95.

[0045] The curved arm structure of the hinge 7 allows the smoke guide plate 8 to rotate along a predetermined trajectory during opening and closing, ensuring both the effective shielding and guidance of fumes when the smoke guide plate is deployed and its close contact with the bottom of the main unit when retracted. This structure controls the movement trajectory of the smoke guide plate.

[0046] In one embodiment: the telescopic frame 6 is a triangular frame structure that is wider at the bottom and narrower at the top, and the smoke inlet 62 is elongated and arranged on the front of the telescopic frame 6.

[0047] The telescopic frame 6 adopts a structure that is wider at the bottom and narrower at the top, which allows it to form a larger lower smoke intake area after unfolding, which is beneficial for covering the oil fume diffusion area above the cookware; the long strip-shaped smoke inlet 62 can expand the smoke intake area in the horizontal direction and improve the oil fume capture efficiency.

[0048] In one embodiment, a guide plate 63 extending towards the main unit 1 is provided on the back of the smoke inlet 62. The guide plate 63 can guide the oil fumes entering the smoke inlet, making the flow of oil fumes more concentrated and smooth, reducing airflow turbulence, and improving the efficiency of entering the air duct.

[0049] In one embodiment: an upper guide plate 14 is provided on the inner front wall of the mounting cavity 12, and a lower guide plate 64 is provided on the top of the telescopic frame 6.

[0050] When the telescopic frame 6 is extended downwards, a top air intake channel is formed between the upper guide plate 14 and the lower guide plate 64, allowing the fumes to be drawn in from the top of the telescopic frame. Together with the front smoke inlet 62, a dual air intake structure is achieved, thereby expanding the smoke intake path and improving the smoke intake efficiency.

[0051] In one embodiment, the lifting power device 5 is an electric telescopic rod. Using an electric telescopic rod as the lifting power device makes the up-and-down movement of the lifting frame highly controllable, runs smoothly, facilitates automated control, and improves ease of use.

[0052] In summary, in the range hood of the present invention, the main unit 1 is fixedly installed above the stove, and a smoke extraction volute is installed inside the air cabinet 2 at its top. The air inlet of the smoke extraction volute is connected to the smoke guiding assembly located at the bottom of the main unit through the air duct 11 inside the main unit. When the smoke extraction volute is working, a negative pressure is formed in the air duct 11 to draw in the fumes and exhaust them outdoors.

[0053] The main unit 1 has a mounting cavity 12 at its bottom, and the smoke guiding assembly is installed in the mounting cavity 12. The main body of the smoke guiding assembly is a lifting frame 4, which is connected to the main unit 1 via a lifting slide rail 3. The lifting slide rail 3 restricts the movement direction of the lifting frame 4, allowing it to move only vertically up and down. A lifting power device 5, preferably an electric telescopic rod, is provided between the lifting frame 4 and the main unit 1 to provide the driving force required for the smoke guiding assembly to move up and down.

[0054] When the range hood is in operation, the lifting power device 5 is activated, driving the lifting frame 4 to move downwards along the lifting slide rail 3, causing the entire smoke guiding assembly to move from the bottom of the main unit 1 towards the stove. As the lifting frame 4 descends, the telescopic frame 6, located at the mounting port 41 at the front end of the lifting frame 4, gradually unfolds downwards under the combined action of its own gravity and the guiding structure.

[0055] The telescopic frame 6 is equipped with guide wheels 61 at its left and right ends, which cooperate with the corresponding sliding grooves 13 in the mounting cavity 12 to maintain the predetermined movement trajectory during the expansion process, avoiding left and right swaying or posture deviation, thereby ensuring the stability and reliability of the smoke inlet structure.

[0056] When the telescopic frame 6 is fully extended, its front end smoke inlet 62 is located close to the cookware, allowing the fumes to be directly drawn in from the front as soon as they are generated and rise from the cookware. Simultaneously, a gap is formed between the top of the telescopic frame 6 and the main unit 1, and this gap is defined by the upper guide plate 14 on the inner wall of the front side of the mounting cavity 12 and the lower guide plate 64 on the top of the telescopic frame 6, thus creating a top air intake channel at the top of the telescopic frame.

[0057] Therefore, when the smoke guiding assembly is deployed, the fumes can be simultaneously drawn in through the smoke inlet 62 at the front of the telescopic frame and the top air intake channel formed by the top of the telescopic frame, achieving a dual-air intake smoke extraction method that combines front and top air intake. This dual-air intake structure can cover the main paths of rising and spreading fumes, significantly improving the efficiency of fume capture and reducing the dispersion of fumes in all directions.

[0058] The inhaled fumes enter the air duct 11 inside the main unit 1 through the smoke guide channel formed inside the lifting frame 4, and are then discharged outdoors by the action of the smoke volute.

[0059] During the downward movement of the lifting frame 4, the lifting frame 4 drives the first hanging rod 9 to rotate through the pull rod 94. The first hanging rod 9 then drives the second hanging rod 92 to rotate synchronously through the connecting rod 93. The second hanging rod 92 further drives the door hinge 7 to move through the linkage rod 95.

[0060] Driven by the linkage rod 95, the crank arm 72 in the hinge 7 rotates around the base 71, causing the smoke guide plate 8 mounted on the connecting seat 73 to flip outward and open. When the smoke guide assembly is fully extended, the smoke guide plate 8 is in the open state, forming a lateral shielding and guiding structure for the fumes, which helps to confine the fumes within the smoking area and reduce the escape of fumes from the front or sides.

[0061] Because the linkage mechanism is symmetrically arranged on the left and right sides of the mounting cavity 12, the smoke guide plate 8 can achieve synchronous and symmetrical opening and closing actions, thereby ensuring the stability and overall coordination of the smoke guide structure in the working state.

[0062] Finally, when the range hood stops working or the overall appearance needs to be restored, the lifting power device 5 reverses its action, driving the lifting frame 4 to move upward along the lifting slide rail 3, and the smoke guiding component gradually retracts into the main unit 1.

[0063] During the ascent of the lifting frame 4, the telescopic frame 6 gradually retracts upward and approaches the lifting frame 4 under the constraint of the guide wheel 61 and the slide groove 13, thereby closing the front smoke inlet 62 and the top air inlet channel. At the same time, the upward movement of the lifting frame 4 drives the door hinge 7 in the opposite direction through the linkage mechanism, causing the smoke guide plate 8 to flip inward and close synchronously, finally fitting against the bottom of the main unit 1.

[0064] Once the smoke guide components are fully retracted, the bottom of the range hood forms a relatively flat and neat appearance, which not only avoids the smoke guide structure being exposed and affecting the kitchen work space, but also improves the overall appearance consistency and aesthetics of the machine.

[0065] Therefore, through the above structure and its collaborative working process, the range hood of the present invention can lower the smoke inlet to a position closer to the cookware according to actual needs during operation, and effectively capture and guide the fumes through the upper and lower dual air inlets and the linkage structure of the smoke guide plate; in the non-operating state, the smoke guide components and smoke guide plate can be automatically stored, making the overall shape of the machine simple and neat. This working method takes into account the smoke extraction efficiency, structural stability and appearance, so it can be widely used.

[0066] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A range hood with a lifting function for the smoke inlet, comprising a main unit (1), wherein a fan cabinet (2) is installed on the top of the main unit (1), and a smoke volute is provided inside the fan cabinet (2). The air inlet of the smoke volute is connected to the air duct (11) inside the main unit (1). When the smoke volute is working, it draws in oil fumes from the air duct (11) and discharges them to the outside through the exhaust seat on the top of the fan cabinet (2). Its features are: The main unit (1) has an installation cavity (12) at the bottom, and a smoke guide assembly is provided in the installation cavity (12); The smoke guiding assembly includes a lifting frame (4) mounted on the main unit (1) via a lifting slide rail (3). A lifting power device (5) is installed between the lifting frame (4) and the main unit (1). The lifting power device (5) is used to drive the lifting frame (4) to move up and down along the direction defined by the lifting slide rail (3). The front opening of the lifting frame (4) is provided with an installation port (41), and the bottom of the installation port (41) is hinged to a telescopic frame (6). The left and right ends of the telescopic frame (6) are respectively provided with guide wheels (61). The guide wheels (61) slide in the corresponding grooves (13) provided at the left and right ends of the mounting cavity (12) to guide and restrict the movement of the telescopic frame (6). The front end face of the telescopic frame (6) is provided with a smoke inlet (62), and the smoke inlet (62) is connected to the air duct (11) inside the main unit (1) through the smoke guiding channel formed inside the lifting frame (4). The bottom left and right sides of the main unit (1) are also equipped with smoke guide plates (8) respectively through door hinges (7). The door hinges (7) are connected to the lifting frame (4) through a linkage mechanism, so that the lifting frame (4) drives the smoke guide plates (8) to open and close synchronously through the linkage mechanism during the up and down movement.

2. A range hood with a lifting function for the smoke inlet according to claim 1, characterized in that: Two sets of linkage mechanisms are provided and are symmetrically arranged on the left and right sides of the mounting cavity (12).

3. A range hood with a lifting function for the smoke inlet according to claim 1 or 2, characterized in that: The linkage mechanism includes a first rod (9) and a second rod (92) hingedly installed on the upper part of the inner side of the mounting cavity (12). The first rod (9) and the second rod (92) are hingedly connected by a connecting rod (93). The first rod (9) is also hinged to the lifting frame (4) by a pull rod (94). The second rod (92) is hinged to the door hinge (7) by a linkage rod (95).

4. A range hood with a lifting function for the smoke inlet according to claim 3, characterized in that: The two ends of the connecting rod (93) are respectively hinged to the middle of the first rod (9) and the second rod (92).

5. A range hood with a lifting function for the smoke inlet according to claim 3, characterized in that: The door hinge (7) includes a base (71) fixedly installed on the host (1), a crank arm (72) is hingedly installed on the base (71), a connecting seat (73) is provided on the crank arm (72), the smoke guide plate (8) is installed on the connecting seat (73), a hinge seat (74) is provided in the middle of the crank arm (72), and the hinge seat (74) is hingedly connected to the linkage rod (95).

6. A range hood with a lifting function for the smoke inlet according to claim 1, characterized in that: The telescopic frame (6) is a triangular frame structure that is wider at the bottom and narrower at the top, and the smoke inlet (62) is a long strip set on the front of the telescopic frame (6).

7. A range hood with a lifting function for the smoke inlet according to claim 6, characterized in that: The back of the smoke inlet (62) is provided with a guide plate (63) extending toward the main unit (1).

8. A range hood with a lifting function for the smoke inlet according to claim 6, characterized in that: The front inner wall of the mounting cavity (12) is provided with an upper guide plate (14) extending inward, and the top of the telescopic frame (6) is provided with a lower guide plate (64) extending inward.

9. A range hood with a lifting function for the smoke inlet according to claim 1, characterized in that: The lifting power device (5) is an electric telescopic rod.

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