Range hood

Abstract

The utility model discloses a range hood, which comprises a range hood main body, a range hood cover, a range hood cover, a range hood cover, a range hood cover, a range hood cover, a range hood cover and a range hood cover plate, and the range hood main body is provided with a top plate, a telescopic inner cavity and a smoke collecting cavity, the telescopic panel assembly is connected into the telescopic inner cavity in a sliding mode; the movable baffle is connected below the top plate in a sliding manner; the oil cup is slidably connected to the top plate, and an opening of a containing cavity of the oil cup is always aligned with the oil dripping hole; the driving assembly is used for driving the telescopic panel assembly to extend out of or retract into the telescopic inner cavity; the first linkage assembly is used for enabling the movable baffle and the telescopic panel assembly to be in linkage and have the same moving direction; the second linkage assembly is used for enabling the oil cup to be in linkage with the movable baffle and enabling the oil cup and the movable baffle to have opposite moving directions; the telescopic panel assembly is provided with a part located at the front end of the movable baffle when extending out of the telescopic inner cavity. According to the range hood, the problems that the movement process of the telescopic panel assembly, the oil cup and the movable baffle needs to be controlled independently, and the control process is complex can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, and in particular to a range hood. Background Art

[0002] In the prior art, some range hoods have a telescopic panel assembly, on which functional components such as lighting and air curtain fans are installed. When the range hood is in use, the telescopic panel assembly is extended by a driving mechanism, so that functional components such as lighting and air curtain fans can be started and used. When the range hood is turned off, the driving mechanism drives the telescopic panel assembly to retract, so as to reduce the occupation of kitchen space by functional components such as lighting and air curtain fans when they are idle. The prior art also opens the air intake when the range hood is running and closes the air intake when the range hood is turned off by providing a movable baffle and an oil cup. However, in the prior art, the movement of the telescopic panel assembly, the movable baffle and the oil cup are driven by different motors respectively, and the movement of the telescopic panel assembly, the oil cup and the movable baffle needs to be controlled separately, which makes the control process more complicated. Utility Model Content

[0003] The purpose of the present utility model is to provide a range hood, which is used to solve the above technical problems.

[0004] The range hood includes:

[0005] The range hood body comprises a top plate, a telescopic inner cavity and a smoke collecting cavity located above the top plate, the top plate being provided with an air inlet and an oil dripping hole, the air inlet and the oil dripping hole being connected to the smoke collecting cavity;

[0006] a telescopic panel assembly slidably connected within the telescopic inner cavity;

[0007] A movable baffle is slidably connected to the bottom of the top plate and is used to open or close the air suction port;

[0008] The oil cup is slidably connected to the top plate, and the opening of its accommodating cavity is always aligned with the oil drip hole;

[0009] A driving assembly, which is used to drive the telescopic panel assembly to extend or retract into the telescopic inner cavity;

[0010] A first linkage assembly is used to enable the movable baffle to be linked with the telescopic panel assembly and to have the same moving direction, so that the movable baffle opens or closes the air suction port;

[0011] A second linkage assembly is used to link the oil cup with the movable baffle, and to make the oil cup and the movable baffle move in opposite directions, so as to ensure that when the movable baffle closes the air suction port, the downward projection of the rear edge falls into the opening of the accommodating cavity of the oil cup;

[0012] Wherein, when the telescopic panel assembly extends out of the telescopic inner cavity, it has a portion located at the front end of the movable baffle.

[0013] According to one embodiment of the present invention, after the driving assembly drives the telescopic panel assembly to move a distance L1, the first linkage assembly starts to drive the movable baffle to move in the same direction as the telescopic panel assembly.

[0014] According to one embodiment of the present utility model, the first linkage assembly includes a first linkage plate and a first sliding member. The first linkage plate is connected to the telescopic panel assembly. The first sliding member is slidably connected to the top plate. The movable baffle is connected to the first sliding member. After the telescopic panel assembly moves a distance L1, the first sliding member is connected to the first linkage plate.

[0015] According to one embodiment of the present invention, the first linkage assembly also includes a connecting pin, a connecting groove is provided on the first linkage plate, the connecting pin is provided on the first sliding member and is slidably connected to the connecting groove, the connecting groove has a first end close to the telescopic panel assembly and a second end away from the telescopic panel assembly, the displacement of the connecting pin sliding from the first end to the second end in the connecting groove is L1, when the telescopic panel assembly is fully retracted into the telescopic inner cavity, the connecting pin is located at the first end of the connecting groove, when the length of the telescopic panel assembly extending out of the telescopic inner cavity is greater than or equal to L1, the connecting pin is located at the second end of the connecting groove.

[0016] According to one embodiment of the present invention, at the moment when the first linkage assembly drives the movable baffle, the second linkage assembly synchronously drives the oil cup and the movable baffle to move in opposite directions.

[0017] According to one embodiment of the present utility model, the second linkage assembly includes a second linkage plate, a second guide member, a swing arm and a rotating shaft. The second linkage plate is connected to the first linkage assembly, the second guide member is slidably connected to the top plate, the rotating shaft is provided on the top plate, the swing arm is rotatably connected to the rotating shaft, its first end is connected to the second linkage plate, and the other end is connected to the second guide member, and the oil cup is connected to the second guide member.

[0018] According to one embodiment of the present invention, after the first linkage assembly drives the movable baffle to move a distance L2, the second linkage assembly drives the oil cup and the movable baffle to move in opposite directions.

[0019] According to one embodiment of the present utility model, the second linkage assembly includes a second linkage plate, a second guide member, a swing arm and a rotating shaft. The second linkage plate is connected to the first linkage assembly, the second guide member is slidably connected to the top plate, the rotating shaft is provided on the top plate, the swing arm is rotatably connected to the rotating shaft, and the two ends of the swing arm are respectively provided with a first give way groove and a second give way groove, a first pin is provided on the second linkage plate, a second pin is provided on the second guide member, the first pin is slidably connected to the first give way groove, the second pin is slidably connected to the second give way groove, and the oil cup is connected to the second guide member.

[0020] According to one embodiment of the present utility model, the movable baffle is connected to the first linkage assembly through the baffle bracket, the oil cup is connected to the second linkage assembly through the oil cup hanger, and a first avoidance groove for avoiding the baffle bracket and a second avoidance groove for avoiding the oil cup hanger are provided on the top plate. The baffle bracket is slidably connected to the first avoidance groove, and the oil cup hanger is slidably connected to the second avoidance groove.

[0021] According to one embodiment of the present invention, a lighting assembly and / or an air curtain assembly and / or an air quality detection module is provided in the installation cavity of the telescopic panel assembly, a wind curtain air inlet hole corresponding to the wind curtain assembly and / or a detection hole corresponding to the air quality detection module is provided on the top plate of the telescopic panel assembly, and a wind curtain air outlet hole corresponding to the wind curtain assembly and / or a lighting window corresponding to the lighting assembly is provided on the bottom plate of the telescopic panel assembly; when the telescopic panel assembly is fully extended out of the telescopic inner cavity, the wind curtain air inlet hole and / or the detection hole on the top plate of the telescopic panel assembly moves out of the telescopic inner cavity, and the part of the bottom plate of the telescopic panel assembly where the wind curtain air outlet hole and / or the lighting window is provided is located at the front end of the movable baffle.

[0022] Compared with the prior art, the range hood of this utility model has the following advantages:

[0023] The range hood of the present invention utilizes a driving assembly to drive the telescopic panel assembly to move, and utilizes a first linkage assembly to drive the moving baffle to move, so that the moving baffle and the telescopic panel assembly are linked and have the same moving direction. At the same time, the second linkage assembly is utilized to drive the oil cup and the moving baffle to link, so that during the movement of the moving baffle, or after the moving baffle finishes moving, the oil cup can move in the opposite direction to the moving baffle, ensuring that when the moving baffle closes the air intake port, the downward projection of the rear edge falls into the opening of the accommodating cavity of the oil cup, so as to improve the problem that the movement process of the telescopic panel assembly, the oil cup and the moving baffle needs to be controlled separately, and the control process is relatively complicated. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic structural diagram of the range hood of the present invention when the air intake port is closed;

[0025] Figure 2 This is a schematic diagram of the range hood of the present invention in a shut-down state;

[0026] Figure 3 This is a side view of the range hood of the present invention with the telescopic panel assembly partially extended and the movable baffle not yet opening the air intake;

[0027] Figure 4 This is a schematic diagram of the range hood of the present invention in the powered-on state;

[0028] Figure 5 It is a cross-sectional view of the range hood of the present invention in the powered-on state;

[0029] Figure 6 This is a schematic diagram of the first partial structure of the range hood of the present invention;

[0030] Figure 7 This is a schematic diagram of a second partial structure of the range hood of the present invention;

[0031] Figure 8 for Figure 7 An enlarged schematic diagram of the left part;

[0032] Figure 9 for Figure 8 An enlarged schematic diagram of the right side of FIG;

[0033] Figure 10 for Figure 8 A schematic diagram of the enlarged structure of the middle part A;

[0034] Figure 11 This is an axonometric view of a portion of the telescopic panel assembly of the range hood of the present invention extending outward;

[0035] Figure 12 This is a schematic structural diagram of the range hood of the present invention when the air intake port is open.

[0036] In the figure: a, telescopic inner cavity; b, smoke collecting cavity; 1, range hood body; 11, top plate; 111, air inlet; 112, oil drip hole; 113, first avoidance groove; 114, second avoidance groove; 2, telescopic panel assembly; 22, air curtain air inlet; 23, detection hole; 24, air curtain air outlet; 25, lighting window; 3, movable baffle; 4, oil cup; 5, drive assembly; 51, reduction motor; 52, gear; 53, gear 54. Guide member; 6. First linkage assembly; 61. First linkage plate; 611. Connecting groove; 62. First sliding member; 63. Connecting pin; 64. Baffle bracket; 7. Second linkage assembly; 71. Second linkage plate; 711. First pin; 72. Second guide member; 721. Second pin; 73. Swing arm; 731. First clearance groove; 732. Second clearance groove; 74. Rotating shaft; 75. Oil cup bracket.

[0037] The realization of the functions and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0038] The following diagrams illustrate various embodiments of the present invention. For clarity, many practical details will be included in the following description. However, it should be understood that these practical details are not intended to limit the present invention. In other words, in some embodiments of the present invention, these practical details are not essential. Furthermore, to simplify the drawings, some commonly used structures and components are depicted in simplified schematic form.

[0039] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0040] In addition, in the present invention, descriptions such as "first" and "second" are only used for descriptive purposes and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0041] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings:

[0042] This utility model discloses a range hood. Figures 1 to 12 , including a range hood body 1, a telescopic panel assembly 2, a movable baffle 3, an oil cup 4, a driving assembly 5, a first linkage assembly 6 and a second linkage assembly 7.

[0043] The range hood body 1 comprises a top plate 11, a telescopic inner cavity a located above the top plate 11, and a smoke collecting cavity b. The top plate 11 is provided with an air inlet 111 and an oil dripping hole 112, which are in communication with the smoke collecting cavity b.

[0044] The telescopic panel assembly 2 is slidably connected in the telescopic inner cavity a;

[0045] A movable baffle 3 is slidably connected to the bottom of the top plate 11 and is used to open or close the air suction port 111;

[0046] The oil cup 4 is slidably connected to the top plate 11, and the opening of its accommodating cavity is always aligned with the oil drip hole 112;

[0047] A driving assembly 5, which is used to drive the telescopic panel assembly 2 to extend or retract the telescopic inner cavity a;

[0048] The first linkage assembly 6 is used to make the movable baffle 3 and the telescopic panel assembly 2 move in the same direction, so that the movable baffle 3 opens or closes the air suction port 111;

[0049] The second linkage assembly 7 is used to link the oil cup 4 with the movable baffle 3, and to make the oil cup 4 and the movable baffle 3 move in opposite directions, so as to ensure that when the movable baffle 3 closes the air suction port 111, the downward projection of the rear edge falls into the opening of the accommodating cavity of the oil cup 4;

[0050] Among them, when the telescopic panel assembly 2 extends out of the telescopic inner cavity a, it has a part located at the front end of the movable baffle 3.

[0051] In this embodiment, the air intake 111 is located at the rear end of the top panel 11, relatively close to the wall, and vertically diagonally above the stovetop's gas outlet. A smoke exhaust fan is installed within the smoke collection chamber b. When the exhaust fan is running, it creates a negative pressure at the air intake 111. Cooking fumes are drawn into the smoke collection chamber b through the air intake 111 and eventually exhausted by the exhaust fan.

[0052] The movable baffle 3 is movable relative to the top plate 11, that is, relative to the air intake port 111 on the top plate 11. The movable baffle 3 can slide to open or close the air intake port 111. When the range hood is started, the movable baffle 3 opens the air intake port 111 to allow the oil smoke to be normally drawn into the smoke collecting chamber b. As the oil smoke flows through the air intake port 111 into the smoke collecting chamber b, a mixture of oil and water in the oil smoke forms an oily liquid that adheres to the air intake port 111. When the range hood is in operation, the smoke exhaust fan creates a negative pressure in the smoke collecting chamber b, and the oily liquid adhering to the air intake port 111 does not drip downward. When the range hood is turned off, the exhaust fan stops running, and the movable baffle 3 closes the air inlet 111. The oil adhering to the air inlet 111 drips from the air inlet 111 after its gravity overcomes the adhesive force. The oil drips from the air inlet 111 and is caught by the movable baffle 3, preventing the oil from dripping onto the stovetop or the user's cookware. This prevents the oil from dripping out of the air inlet 111 and onto the stovetop, thereby affecting the user experience. Furthermore, closing the air inlet 111 by the movable baffle 3 when the range hood is turned off prevents foreign matter such as insects from entering the range hood and affecting its internal components, thereby improving the stability of the range hood's internal structure. Furthermore, closing the air inlet 111 by the movable baffle 3 when the range hood is turned off improves the range hood's appearance.

[0053] The oil cup 4 can be installed below the range hood body 1, that is, below the oil dripping hole 112. When the range hood is exhausting oil fumes, the oil and water mixture in the oil fumes will accumulate into oil in the air collecting chamber and on the volute of the exhaust fan. The oil will eventually flow to the oil cup 4 through the oil dripping hole 112 to collect the oil.

[0054] When the range hood is turned off, the movable baffle 3 moves backward to close the air intake 111, and the oil cup 4 moves forward so that the downward projection of the rear edge of the movable baffle 3 falls into the opening of its accommodating chamber. In this way, oil droplets dripping onto the movable baffle 3 can flow along the upper surface of the movable baffle 3 toward the rear edge of the movable baffle 3, and ultimately flow into the oil cup 4 from the rear edge of the movable baffle 3. When the range hood is turned on, the movable baffle 3 moves forward to open the air intake 111, and the oil cup 4 moves backward to avoid affecting the air intake of the air intake 111. It can be understood that regardless of whether the range hood is on or off, the accommodating chamber opening of the oil cup 4 is always aligned with the oil drip hole 112 and located directly below the oil drip hole 112. This ensures that oil accumulated in the range hood body 1 drips from the oil drip hole 112 into the oil cup 4, completing unified collection and facilitating subsequent cleaning.

[0055] The retractable panel assembly 2 has a mounting cavity within which functional components are installed. When the range hood is powered on, the functional components extend out of the retractable cavity a along with the retractable panel assembly 2. Once operational, these components assist the range hood's fume extraction with other functions, such as providing lighting and creating an air curtain. When the range hood is powered off, the functional components cease operation and retract into the retractable cavity a along with the retractable panel assembly 2, minimizing the amount of kitchen space occupied by the functional components when idle and providing a concealed and protected surface.

[0056] After the range hood is turned on, the driving component 5 drives the telescopic panel component 2 to move outward from the telescopic inner cavity a. After the front end part of the telescopic panel component 2 extends out of the telescopic inner cavity a, the driving component 5 continues to drive the telescopic panel component 2 to move forward from the telescopic inner cavity a. At the same time, the first linkage component 6 drives the movable baffle 3 to move with the telescopic panel component 2. When the movable baffle 3 moves with the telescopic panel component 2, the telescopic panel component 2 and the movable baffle 3 move synchronously, and the two remain in a relatively static state until the telescopic panel assembly 2 is completely extended out of the telescopic inner cavity a, and the movable baffle 3 opens the air intake port 111. At this time, when the smoke exhaust fan is running, the oil smoke is sucked into the air intake port 111; in this process, the second linkage component 7 links the oil cup 4 with the movable baffle 3, and makes the oil cup 4 and the movable baffle 3 have opposite moving directions, so that the oil cup 4 moves backward.

[0057] Similarly, when the smoker is turned off, the telescopic panel assembly 2 moves before the movable baffle 3. At this time, the telescopic panel assembly 2 and the movable baffle 3 maintain a relative running state, the movable baffle 3 remains stationary, and the air intake 111 is in an open state. When the telescopic panel assembly 2 retracts to the part where the movable baffle 3 covers the front end, the air intake 111 is in an open state. The telescopic panel assembly 2 continues to be moved. Driven by the first linkage assembly 6, the movable baffle 3 begins to move with the telescopic panel assembly 2. The two remain in a relatively stationary state until the telescopic panel assembly 2 is completely retracted into the telescopic inner cavity a and the movable baffle 3 completely closes the air intake 111. During this process, the second linkage assembly 7 links the oil cup 4 with the movable baffle 3, and makes the oil cup 4 and the movable baffle 3 have opposite moving directions, so that the oil cup 4 moves forward to ensure that when the movable baffle 3 closes the air intake 111, the downward projection of the rear edge falls into the opening of the accommodating cavity of the oil cup 4.

[0058] After the range hood is turned on, the distance the telescopic panel assembly 2 moves when it is fully extended from the telescopic inner cavity a is greater than the distance the movable baffle 3 moves forward when it opens the air intake port 111. The telescopic panel assembly 2 has a portion located at the front end of the movable baffle 3. At this time, the functional device is located between the front end plate of the telescopic panel assembly 2 and the front edge of the movable baffle 3, so that the portion of the functional device on the lower surface of the telescopic panel assembly 2 can be exposed relative to the movable baffle 3, thereby ensuring that the functional device is fully displayed and used.

[0059] In the range hood of the present invention, after the driving assembly 5 drives the telescopic panel assembly 2 to move a distance L1, the first linkage assembly 6 starts to drive the movable baffle 3 and the telescopic panel assembly 2 to move in the same direction.

[0060] When the front end of the telescopic panel assembly 2 extends out of the telescopic inner cavity a, the telescopic panel assembly 2 moves by a length of L1. When the driving assembly 5 continues to drive the telescopic panel assembly 2 to extend out of the telescopic inner cavity a, the first linkage assembly 6 starts to drive the movable baffle 3 to move simultaneously with the telescopic panel assembly 2 until the telescopic panel assembly 2 is fully extended out of the telescopic inner cavity a, and the movable baffle 3 opens the air intake 111. At this time, the telescopic panel assembly 2 and the movable baffle 3 move simultaneously by a length of L2.

[0061] Similarly, when the cigarette smoke machine is turned off, the driving component 5 drives the telescopic panel component 2 to move before the movable baffle 3. When the telescopic panel component 2 retracts to the part where the movable baffle 3 covers the front end, the first linkage component 6 drives the movable baffle 3 to start moving with the telescopic panel component 2.

[0062] The range hood of the present invention, the driving assembly 5 includes a reduction motor 51, a gear 52, a rack 53 and a guide 54. The output end of the reduction motor 51 is connected to the gear 52, the rack 53 is connected to the telescopic panel assembly 2, the gear 52 is connected to the rack 53, the guide 54 is connected to the telescopic inner cavity a, and the rack 53 slides along the guide 54.

[0063] When in use, the reduction motor 51 is started to drive the gear 52 to rotate, which drives the rack 53 to move, thereby driving the telescopic panel assembly 2 to move. In this process, the guide member 54 guides and limits the movement of the rack 53.

[0064] See also Figure 7 and Figure 8 In the range hood of the present invention, the first linkage assembly 6 includes a first linkage plate 61 and a first sliding member 62. The first linkage plate 61 is connected to the telescopic panel assembly 2, the first sliding member 62 is slidably connected to the top plate 11, and the movable baffle 3 is connected to the first sliding member 62. After the telescopic panel assembly 2 moves a distance L1, the first sliding member 62 is connected to the first linkage plate 61.

[0065] When the front end portion of the telescopic panel assembly 2 extends out of the telescopic inner cavity a and moves a distance L1, the first sliding member 62 is connected to the first linkage plate 61. When the telescopic panel assembly 2 continues to be extended, under the action of the connection between the first linkage plate 61 and the telescopic panel assembly 2 and the connection between the movable baffle 3 and the first sliding member 62, the moving telescopic panel assembly 2 drives the first linkage plate 61 to move, and then drives the movable baffle 3 to move synchronously through the transmission of the first sliding member 62.

[0066] Similarly, when the range hood is turned off, the first sliding member 62 is disconnected from the first linkage plate 61, and the driving component 5 drives the telescopic panel component 2 to move before the movable baffle 3. When the telescopic panel component 2 retracts to the part covering the front end of the movable baffle 3, the first sliding member 62 is connected to the first linkage plate 61 again, and the first linkage component 6 drives the movable baffle 3 to start moving with the telescopic panel component 2.

[0067] The range hood of the present invention, the first linkage assembly 6 also includes a connecting pin 63, a connecting groove 611 is provided on the first linkage plate 61, the connecting pin 63 is provided on the first sliding member 62 and is slidably connected to the connecting groove 611, the connecting groove 611 has a first end close to the telescopic panel assembly 2 and a second end away from the telescopic panel assembly 2, the displacement of the connecting pin 63 sliding from the first end to the second end in the connecting groove 611 is L1, when the telescopic panel assembly 2 is fully retracted into the telescopic inner cavity a, the connecting pin 63 is located at the first end of the connecting groove 611, when the length of the telescopic panel assembly 2 extending out of the telescopic inner cavity a is greater than or equal to L1, the connecting pin 63 is located at the second end of the connecting groove 611.

[0068] In an embodiment of the present invention, the first linkage plate 61 is a long strip plate structure with its length direction along the horizontal opening direction of the telescopic inner cavity a (i.e., the direction of movement of the telescopic panel assembly 2); the length direction of the connecting groove 611 extends along the length direction of the first linkage plate 61, and it can be a strip groove or a rectangular groove.

[0069] The connecting pin 63 can be a cylindrical pin, a bolt, etc., and its outer diameter is equal to the slot width of the connecting slot 611, so that it can pass through; the inner wall of the connecting slot 611 in the slot width direction forms a limit for the connecting pin 63, so that the connected telescopic panel assembly 2 and the movable baffle 3 will only move along the horizontal opening direction of the telescopic inner cavity a.

[0070] In this embodiment, the connecting groove 611 is shown as a strip-shaped groove, and the connecting pin 63 is shown as a cylindrical pin. The connecting groove 611 has a first end close to the telescopic panel assembly 2, specifically the curved inner wall of the connecting groove 611 close to the telescopic panel assembly 2; the connecting groove 611 has a second end away from the telescopic panel assembly 2, specifically the other curved inner wall of the connecting groove 611 away from the telescopic panel assembly 2. The outer diameter of the cylindrical pin is equal to the diameter of the two curved inner walls of the connecting groove 611 to prevent the connecting pin 63 from getting stuck when it abuts the two curved inner walls of the connecting groove 611.

[0071] When the connecting pin 63 slides relatively within the connecting groove 611, the connecting pin 63 slides between the two curved inner walls of the connecting groove 611, which is shown as a strip groove. When the telescopic panel assembly 2 moves and the first end or the second end of the connecting groove 611 applies force to the connecting pin 63, the side surface of the connecting pin 63 abuts against one of the curved inner walls of the connecting groove 611, which is shown as a strip groove.

[0072] The distance between the first end and the second end of the connecting groove 611 is the maximum distance that the telescopic panel assembly 2 moves before the movable baffle 3, which is the moving distance L1. The telescopic panel assembly 2 and the movable baffle 3 move relative to each other. When this distance is reached, the connecting pin 63 abuts against the second end from the first end, or abuts against the first end from the second end. If the telescopic panel assembly 2 continues to move, the telescopic panel assembly 2 and the movable baffle 3 move synchronously, and the two remain relatively stationary.

[0073] When the connecting pin 63 is located at the first end of the connecting slot 611, when the telescopic panel assembly 2 moves in the direction of extending out of the telescopic inner cavity a, the first linkage plate 61 does not apply force to the connecting pin 63. At this time, the connecting pin 63 slides relative to the connecting slot 611, and the second end of the connecting slot 611 approaches the connecting pin 63. After the second end of the connecting slot 611 moves to the connecting pin 63, the telescopic panel assembly 2 continues to move in the direction of extending out of the telescopic inner cavity a. The first linkage plate 61 will apply force to the connecting pin 63. The first linkage plate 61 drives the first sliding member 62 to move through the connecting pin 63, so that the first sliding member 62 drives the movable baffle 3 to move, so that the movable baffle 3 and the telescopic panel assembly 2 remain relatively stationary.

[0074] When the telescopic panel assembly 2 is fully extended from the telescopic inner cavity a and the movable baffle 3 opens the air inlet 111, the connecting pin 63 is located at the second end of the connecting slot 611. After shutting down, the telescopic panel assembly 2 begins to move in the direction of retracting into the telescopic inner cavity a. At this time, the first end of the connecting slot 611 moves toward the connecting pin 63, and the connecting pin 63 slides relatively within the connecting slot 611, causing the movable baffle 3 and the telescopic panel assembly 2 to move relative to each other. After the first end of the connecting slot 611 moves to the connecting pin 63, as the telescopic panel assembly 2 continues to slide into the telescopic inner cavity a, the first linkage plate 61 applies force to the connecting pin 63, which causes the first sliding member 62 to drive the movable baffle 3 to move via the connecting pin 63, so that the movable baffle 3 and the telescopic panel assembly 2 remain in a relatively stationary state.

[0075] See also Figures 7 to 9 In an exemplary embodiment of the range hood of the present invention, at the moment when the first linkage assembly 6 drives the movable baffle 3 , the second linkage assembly 7 synchronously drives the oil cup 4 and the movable baffle 3 to move in opposite directions.

[0076] In combination with the above-mentioned embodiment of the connecting pin 63 and the connecting groove 611, when the connecting pin 63 is located at the second end of the connecting groove 611, when the telescopic panel assembly 2 moves in the direction of extending out of the telescopic inner cavity a, or when the connecting pin 63 is located at the first end of the connecting groove 611, when the telescopic panel assembly 2 moves in the direction of retracting into the telescopic inner cavity a, the movable baffle 3 and the telescopic panel assembly 2 move synchronously, and the second linkage assembly 7 synchronously drives the oil cup 4 and the movable baffle 3 to move in opposite directions. In this way, the oil cup 4 and the movable baffle 3 can be synchronously moved in opposite directions, so that when the movable baffle 3 moves into place, the oil cup 4 can also move into place at the same time.

[0077] In the range hood of the present invention, the second linkage assembly 7 includes a second linkage plate 71, a second guide member 72, a swing arm 73 and a rotating shaft 74. The second linkage plate 71 is connected to the first linkage assembly 6, the second guide member 72 is slidably connected to the top plate 11, the rotating shaft 74 is provided on the top plate 11, the swing arm 73 is rotatably connected to the rotating shaft 74, the first end of which is connected to the second linkage plate 71, and the other end is connected to the second guide member 72, and the oil cup 4 is connected to the second guide member 72.

[0078] Combined with the above-mentioned embodiment of the connecting pin 63 and the connecting groove 611, when the connecting pin 63 is located at the second end of the connecting groove 611, when the telescopic panel assembly 2 moves in the direction of extending out of the telescopic inner cavity a, the movable baffle 3 and the telescopic panel assembly 2 move synchronously. During this process, the first linkage assembly 6 (specifically the first sliding member 62) pulls the second linkage plate 71 to move in the direction of extending out of the telescopic inner cavity a, and the swing arm 73 rotates around the rotating shaft 74, causing the second guide member 72 to slide in the direction opposite to the moving direction of the second linkage plate 71. Since the oil cup 4 is connected to the second guide member 72, at this time, the oil cup 4 and the movable baffle 3 move in opposite directions.

[0079] When the connecting pin 63 is located at the first end of the connecting groove 611, when the telescopic panel assembly 2 moves in the direction of retracting the telescopic inner cavity a, the movable baffle 3 and the telescopic panel assembly 2 move synchronously. During this process, the first linkage assembly 6 (specifically the first sliding member 62) pulls the second linkage plate 71 to move in the direction of retracting the telescopic inner cavity a, and the swing arm 73 rotates around the rotating shaft 74, so that the second guide member 72 slides in the direction opposite to the moving direction of the second linkage plate 71. Since the oil cup 4 is connected to the second guide member 72, at this time, the oil cup 4 and the movable baffle 3 move toward each other to ensure that when the movable baffle 3 closes the air intake 111, the downward projection of the rear edge falls into the opening of the accommodating cavity of the oil cup 4.

[0080] Please refer to Figures 7 to 10 In another exemplary embodiment of the range hood of the present invention, after the first linkage assembly 6 drives the movable baffle 3 to move a distance L2, the second linkage assembly 7 drives the oil cup 4 and the movable baffle 3 to move in opposite directions.

[0081] In this embodiment, the movement timing of the oil cup 4 is later than the movement timing of the movable baffle 3. After the movable baffle 3 moves a distance L2, the oil cup 4 starts to move in the opposite direction. In this way, the movement timing of the oil cup 4 can be staggered with the movement timing of the movable baffle 3, preventing the entire transmission system from being stuck due to the simultaneous start-up of the first linkage component 6 and the second linkage component 7.

[0082] Please refer to Figure 2 The range hood of the present invention, the second linkage assembly 7 includes a second linkage plate 71, a second guide member 72, a swing arm 73 and a rotating shaft 74. The second linkage plate 71 is connected to the first linkage assembly 6, the second guide member 72 is slidably connected to the top plate 11, the rotating shaft 74 is provided on the top plate 11, the swing arm 73 is rotatably connected to the rotating shaft 74, and the two ends of the swing arm 73 are respectively provided with a first give way groove 731 and a second give way groove 732, a first pin 711 is provided on the second linkage plate 71, and a second pin 721 is provided on the second guide member 72. The first pin 711 is slidably connected to the first give way groove 731, the second pin 721 is slidably connected to the second give way groove 732, and the oil cup 4 is connected to the second guide member 72.

[0083] When the connecting pin 63 is located at the second end of the connecting slot 611, when the telescopic panel assembly 2 moves in the direction of extending out of the telescopic inner cavity a, or when the connecting pin 63 is located at the first end of the connecting slot 611, when the telescopic panel assembly 2 moves in the direction of retracting the telescopic inner cavity a, the movable baffle 3 and the telescopic panel assembly 2 move synchronously. During this process, the first pin 711 slides in the first give way slot 731, and the second pin 721 slides in the second give way slot 732, ensuring that when the second linkage plate 71 moves, the second guide member 72 and the oil cup 4 will not move simultaneously due to the rotation of the swing arm 73. Instead, after the movable baffle 3 moves the displacement L2, the first pin 711 slides along the first give way slot 731 to the limit position, and the second pin 721 slides along the second give way slot 732 to the limit position. At this time, the action force of the first pin 711 and the second pin 71 causes the swing arm 73 to rotate around the rotating shaft 74, so that the movement timing of the oil cup 4 is staggered with the movement timing of the movable baffle 3.

[0084] Please refer to Figure 6 、 Figures 8 to 10 In the range hood of the present invention, the movable baffle 3 is connected to the first linkage assembly 6 through the baffle bracket 64, and the oil cup 4 is connected to the second linkage assembly 7 through the oil cup hanger 75. A first avoidance groove 113 for avoiding the baffle bracket 64 and a second avoidance groove 114 for avoiding the oil cup hanger 75 are provided on the top plate 11. The baffle bracket 64 is slidably connected to the first avoidance groove 113, and the oil cup hanger 75 is slidably connected to the second avoidance groove 114.

[0085] In this embodiment, the baffle bracket 64 passes through the first avoidance groove 113 and is fixedly connected to the movable baffle 3, and the upper side of the baffle bracket 64 is fixedly connected to the first linkage assembly 6, so that during the movement of the movable baffle 3, the baffle bracket 64 drives the first linkage assembly 6 to move synchronously.

[0086] The upper end of the oil cup bracket 75 is fixedly connected to one end of the second guide member 72 by a bolt (not shown in the figure), and the lower end passes through the second avoidance groove 114 and is fixedly connected to the oil cup 4, so that during the movement of the movable baffle 3, the oil cup 4 is driven to move in the opposite direction synchronously through the oil cup bracket 75.

[0087] Please refer to Figure 11 and Figure 12In the range hood of the present invention, a lighting assembly and / or an air curtain assembly and / or an air quality detection module is provided in the installation cavity of the telescopic panel assembly 2, and an air curtain air inlet hole 22 corresponding to the air curtain assembly and / or a detection hole 23 corresponding to the air quality detection module is provided on the top plate of the telescopic panel assembly 2, and an air curtain air outlet hole 24 corresponding to the air curtain assembly and / or a lighting window 25 corresponding to the lighting assembly is provided on the bottom plate of the telescopic panel assembly 2; when the telescopic panel assembly 2 is fully extended out of the telescopic inner cavity a, the air curtain air inlet hole 22 and / or the detection hole 23 on the top plate of the telescopic panel assembly 2 moves out of the telescopic inner cavity a, and the part of the bottom plate of the telescopic panel assembly 2 where the air curtain air outlet hole 24 and / or the lighting window 25 is provided is located at the front end of the movable baffle 3.

[0088] In this embodiment, a lighting assembly, or an air curtain assembly and an air quality detection module are provided in the installation cavity of the telescopic panel assembly 2, a wind curtain air inlet 22 corresponding to the wind curtain assembly and a detection hole 23 corresponding to the air quality detection module are provided on the top plate of the telescopic panel assembly 2, and a wind curtain air outlet 24 corresponding to the wind curtain assembly and a lighting window 25 corresponding to the lighting assembly are provided on the bottom plate of the telescopic panel assembly 2; when the telescopic panel assembly 2 is fully extended out of the telescopic inner cavity a, the lighting assembly, the air curtain assembly and the air quality detection module extend out of the telescopic inner cavity a along with the telescopic panel assembly 2 and are located at the front end of the movable baffle 3.

[0089] When the range hood is started, if the telescopic panel assembly 2 is fully extended out of the telescopic inner cavity, the top plate of the telescopic panel assembly 2 is provided with an air curtain air inlet hole 22 corresponding to the air curtain assembly and a detection hole 23 corresponding to the air quality detection module extending out of the telescopic inner cavity a, and the air curtain air outlet hole 24 corresponding to the air curtain assembly and the lighting window 25 corresponding to the lighting assembly on the bottom plate of the telescopic panel assembly 2 move out of the telescopic inner cavity a. At this time, the air intake 111 is opened. When the smoke exhaust fan is started, the air curtain assembly starts and forms an air curtain between the user and the stove to prevent oil smoke from escaping. The lighting assembly is illuminated to facilitate the user to see the status of the cooking ingredients. The air quality detection module detects the air quality in real time to determine the smoke purification effect of the range hood.

[0090] After the retractable panel assembly 2 is fully extended from the telescopic cavity, the air curtain assembly, lighting assembly, and air quality detection assembly are activated. The air curtain assembly draws air through the air curtain inlet 22 and exhausts air downward through the air curtain outlet 24 to form an air curtain. The air quality detection module draws air through the detection hole 23 to detect the PM2.5 concentration in the air, providing feedback on the range hood's effectiveness in purifying cooking fumes. The lighting assembly transmits light downward through the lighting window 25, allowing the user to observe the ingredients being cooked. After the user completes cooking, the air curtain assembly closes, the air quality detection module turns off, the lighting assembly turns off, and the retractable panel assembly 2 retracts into the telescopic cavity a.

[0091] Among them, the lighting component and / or the air curtain component and / or the air quality detection module are the aforementioned functional devices.

[0092] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements or improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A range hood, characterized in that: include: A range hood body (1) comprises a top plate (11), a telescopic inner cavity (a) located above the top plate (11), and a smoke collecting cavity (b); the top plate (11) is provided with an air inlet (111) and an oil dripping hole (112); the air inlet (111) and the oil dripping hole (112) are in communication with the smoke collecting cavity (b); a telescopic panel assembly (2) slidably connected within the telescopic inner cavity (a); A movable baffle (3) is slidably connected to the bottom of the top plate (11) and is used to open or close the air suction port (111); An oil cup (4) is slidably connected to the top plate (11), and the opening of its accommodating cavity is always aligned with the oil dripping hole (112); A driving assembly (5) for driving the telescopic panel assembly (2) to extend or retract into the telescopic inner cavity (a); a first linkage assembly (6) for causing the movable baffle (3) and the telescopic panel assembly (2) to move in a linked manner and have the same moving direction, so that the movable baffle (3) opens or closes the air suction port (111); a second linkage assembly (7) for linking the oil cup (4) with the movable baffle (3) and enabling the oil cup (4) and the movable baffle (3) to move in opposite directions, so as to ensure that when the movable baffle (3) closes the air suction port (111), the downward projection of the rear edge falls into the opening of the accommodating cavity of the oil cup (4); Wherein, when the telescopic panel assembly (2) extends out of the telescopic inner cavity (a), it has a portion located at the front end of the movable baffle (3).

2. The range hood according to claim 1, characterized in that: After the driving component (5) drives the telescopic panel component (2) to move a distance L1, the first linkage component (6) starts to drive the movable baffle (3) and the telescopic panel component (2) to move in the same direction.

3. The range hood according to claim 2, characterized in that: The first linkage assembly (6) comprises a first linkage plate (61) and a first sliding member (62); the first linkage plate (61) is connected to the telescopic panel assembly (2); the first sliding member (62) is slidably connected to the top plate (11); the movable baffle (3) is connected to the first sliding member (62); after the telescopic panel assembly (2) moves a distance L1, the first sliding member (62) is connected to the first linkage plate (61).

4. The range hood according to claim 3, characterized in that: The first linkage assembly (6) further includes a connecting pin (63), a connecting groove (611) is provided on the first linkage plate (61), the connecting pin (63) is provided on the first sliding member (62) and is slidably connected in the connecting groove (611), the connecting groove (611) has a first end close to the telescopic panel assembly (2) and a second end away from the telescopic panel assembly (2), the displacement of the connecting pin (63) sliding from the first end to the second end in the connecting groove (611) is L1, when the telescopic panel assembly (2) is fully retracted into the telescopic inner cavity (a), the connecting pin (63) is located at the first end of the connecting groove (611), and when the length of the telescopic panel assembly (2) extending out of the telescopic inner cavity (a) is greater than or equal to L1, the connecting pin (63) is located at the second end of the connecting groove (611).

5. The range hood according to claim 1, characterized in that: At the moment when the first linkage component (6) drives the movable baffle (3), the second linkage component (7) synchronously drives the oil cup (4) and the movable baffle (3) to move in opposite directions.

6. The range hood according to claim 5, characterized in that: The second linkage assembly (7) comprises a second linkage plate (71), a second guide member (72), a swing arm (73) and a rotating shaft (74); the second linkage plate (71) is connected to the first linkage assembly (6); the second guide member (72) is slidably connected to the top plate (11); the rotating shaft (74) is provided on the top plate (11); the swing arm (73) is rotatably connected to the rotating shaft (74); a first end of the swing arm is connected to the second linkage plate (71) and the other end is connected to the second guide member (72); and the oil cup (4) is connected to the second guide member (72).

7. The range hood according to claim 1, characterized in that: After the first linkage component (6) drives the movable baffle (3) to move a distance L2, the second linkage component (7) drives the oil cup (4) and the movable baffle (3) to move in opposite directions.

8. The range hood according to claim 7, characterized in that: The second linkage assembly (7) comprises a second linkage plate (71), a second guide member (72), a swing arm (73) and a rotating shaft (74); the second linkage plate (71) is connected to the first linkage assembly (6); the second guide member (72) is slidably connected to the top plate (11); the rotating shaft (74) is provided on the top plate (11); the swing arm (73) is rotatably connected to the rotating shaft (74); two ends of the swing arm (73) are respectively provided with a first clearance groove (731) and a second clearance groove (732); the second linkage plate (71) is provided with a first pin (711); the second guide member (72) is provided with a second pin (721); the first pin (711) is slidably connected to the first clearance groove (731); the second pin (721) is slidably connected to the second clearance groove (732); and the oil cup (4) is connected to the second guide member (72).

9. The range hood according to claim 1, characterized in that: The movable baffle (3) is connected to the first linkage assembly (6) via a baffle bracket (64), and the oil cup (4) is connected to the second linkage assembly (7) via an oil cup hanger (75). The top plate (11) is provided with a first avoidance groove (113) for avoiding the baffle bracket (64) and a second avoidance groove (114) for avoiding the oil cup hanger (75). The baffle bracket (64) is slidably connected to the first avoidance groove (113), and the oil cup hanger (75) is slidably connected to the second avoidance groove (114).

10. The range hood according to claim 1, characterized in that: The installation cavity of the telescopic panel assembly (2) is provided with a lighting assembly and / or an air curtain assembly and / or an air quality detection module; the top plate of the telescopic panel assembly (2) is provided with an air curtain air inlet hole (22) corresponding to the air curtain assembly and / or a detection hole (23) corresponding to the air quality detection module; the bottom plate of the telescopic panel assembly (2) is provided with an air curtain air outlet hole (24) corresponding to the air curtain assembly and / or a lighting window (25) corresponding to the lighting assembly; when the telescopic panel assembly (2) is fully extended out of the telescopic inner cavity (a), the air curtain air inlet hole (22) and / or the detection hole (23) on the top plate of the telescopic panel assembly (2) moves out of the telescopic inner cavity (a), and the portion of the bottom plate of the telescopic panel assembly (2) provided with the air curtain air outlet hole (24) and / or the lighting window (25) is located at the front end of the movable baffle (3).

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