Range hood

Abstract

The range hood comprises a range hood main body, the range hood main body is provided with a top plate, an air collection cavity and a telescopic inner cavity are arranged above the top plate, an air suction opening is formed in the top plate and communicated with the air collection cavity, and the telescopic inner cavity is located on the front side of the air collection cavity; the telescopic panel assembly is connected into the telescopic inner cavity in a sliding mode; the movable baffle is slidably connected to the lower portion of the top plate and used for opening or closing the air suction opening; in the process that the telescopic panel assembly stretches out of or retracts into the telescopic inner cavity, the movable baffle has the state that the movable baffle moves relative to the telescopic panel assembly and the state that the movable baffle is static relative to the telescopic panel assembly. When the range hood is started, the requirement for opening or closing the exhaust inlet by the movable baffle can be met, functional devices on the telescopic panel assembly cannot be shielded by the movable baffle after the movable baffle moves forwards to open the exhaust inlet, and normal use of the functional devices is guaranteed.

Description

Technical Field

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

[0002] For top-suction range hoods, the air intake is set on the top plate of the range hood. During long-term use, oil will be stuck to the air intake. When the range hood is in operation, air flows through the air intake into the air collecting chamber, and the oil stuck to the air intake will not drip. After the range hood is turned off, when the oil droplets formed are large enough, they will fall from the air intake. In related technologies, a movable baffle is set to close the air intake when the range hood is turned off to catch the dripping oil droplets. Some range hoods have a telescopic panel assembly, which is equipped with functional devices such as lighting and air curtain fans. These functional devices are used to improve the user experience of the range hood. However, when both a movable baffle and a telescopic panel assembly are provided, after the range hood is turned on, when the movable baffle moves forward to open the air intake, the movable baffle will block the lower front surface of the telescopic panel assembly, affecting the normal use of the telescopic panel assembly. 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 a main body having a top plate, an air collecting chamber and a telescopic inner chamber provided above the top plate, an air suction port provided on the top plate, the air suction port being connected to the air collecting chamber, and the telescopic inner chamber being located in front of the air collecting chamber;

[0005] a telescopic panel assembly slidably connected within the telescopic inner cavity;

[0006] A movable baffle is slidably connected to the bottom of the top plate and is used to open or close the air suction port;

[0007] During the process of the telescopic panel assembly extending out of or retracting into the telescopic inner cavity, the movable baffle has a state of relative movement with the telescopic panel assembly and a state of relative stillness with the telescopic panel assembly.

[0008] According to one embodiment of the present invention, the process of the telescopic panel assembly extending / retracting the telescopic inner cavity is divided into a first stage and a second stage. In the first stage, the telescopic panel assembly extends / retracts the telescopic inner cavity, and the movable baffle is stationary relative to the top plate. In the second stage, the telescopic panel assembly extends / retracts the telescopic inner cavity, and the movable baffle moves with the telescopic panel assembly, and the movable baffle moves relative to the top plate.

[0009] According to one embodiment of the present utility model, a connecting piece is provided on the telescopic panel assembly, a sliding groove is provided on the connecting piece, a connecting piece is slidably connected to the top plate, the connecting piece is connected to the movable baffle, the connecting piece has a connecting pin, the connecting pin is slidably connected in the sliding groove, the sliding groove has a first end close to the telescopic panel assembly and a second end away from the telescopic panel assembly, when the connecting pin slides relatively in the sliding groove, the movable baffle is in a state of relative movement with the telescopic panel assembly; when the telescopic panel assembly moves and causes the first end or the second end of the sliding groove to apply force to the connecting pin, the movable baffle moves with the telescopic panel assembly and is in a state of relative stillness with the telescopic panel assembly.

[0010] According to one embodiment of the present utility model, when the connecting pin is located at the first end of the sliding slot, if the telescopic panel assembly moves in the direction of extending out of the telescopic inner cavity, the movable baffle will maintain a state of relative movement with the telescopic panel assembly until the second end of the sliding slot moves to the connecting pin. At this time, if the telescopic panel assembly continues to move in the direction of extending out of the telescopic inner cavity, the movable baffle moves with the telescopic panel assembly and keeps the telescopic panel assembly in a relatively stationary state; when the connecting pin is located at the second end of the sliding slot, if the telescopic panel assembly moves in the direction of retracting into the telescopic inner cavity, the movable baffle will maintain a state of relative movement with the telescopic panel assembly until the first end of the sliding slot moves to the connecting pin. At this time, if the telescopic panel assembly continues to move in the direction of retracting into the telescopic inner cavity, the movable baffle moves with the telescopic panel assembly and keeps the telescopic panel assembly in a relatively stationary state.

[0011] According to one embodiment of the present invention, an avoidance groove is provided on the top plate, the connecting component is slidably connected to the top of the top plate and is arranged corresponding to the avoidance groove, and a baffle bracket is provided on the movable baffle, the baffle bracket is slidably connected to the avoidance groove, and the baffle bracket is connected to the connecting component.

[0012] According to one embodiment of the present invention, the connecting assembly includes a guide member and a sliding member, the guide member is arranged above the top plate, the sliding member is slidably connected to the guide member, the baffle bracket is connected to the sliding member, and the sliding member is provided with a connecting pin.

[0013] According to one embodiment of the present invention, a driving assembly is further included. The driving assembly is disposed in the telescopic inner cavity and is used to drive the telescopic panel assembly to extend or retract into the telescopic inner cavity.

[0014] According to one embodiment of the present invention, the driving assembly includes a reduction motor, a gear and a rack. The output end of the reduction motor is connected to the gear, the rack is connected to the telescopic panel assembly, and the gear is connected to the rack.

[0015] According to one embodiment of the present invention, there are two drive assemblies, and the racks of the two drive assemblies are respectively connected to the two sides of the telescopic panel assembly. The two side walls of the telescopic inner cavity are provided with guide assemblies, and the guide assemblies include guide rails and slides. The guide rails are fixedly connected to the two side walls of the telescopic inner cavity, and the slides are slidably connected to the guide rails, and the racks are connected to the telescopic panel assembly and the slides.

[0016] 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 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 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 extended out of the telescopic inner cavity, the lighting assembly and / or the air curtain assembly and / or the air quality detection module are extended out of the telescopic inner cavity along with the telescopic panel assembly.

[0017] Compared with the prior art, the range hood of this utility model has the following advantages:

[0018] The range hood of the present invention has a state of relative movement with the telescopic panel assembly and a state of relative stillness with the telescopic panel assembly during the process of the telescopic panel assembly extending or retracting into the telescopic inner cavity. When the two are relatively still, the two move synchronously. When the two move relative to each other, the telescopic panel assembly moves and the movable baffle is stationary. In this way, when the range hood is started, the telescopic panel assembly and the movable baffle can be kept in a state of relative movement, so that the part of the telescopic panel assembly provided with the functional device can be extended out of the telescopic inner cavity. Thereafter, the telescopic panel assembly and the movable baffle can be kept in a relatively still state, so that the movable baffle moves with the telescopic panel assembly to open the air intake port. This can not only meet the need of the movable baffle to open or close the air intake port, but also, after the movable baffle moves forward to open the air intake port, the movable baffle will not block the functional device on the telescopic panel assembly, thereby ensuring the normal use of the functional device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of the range hood of the present invention when the air intake port is closed;

[0020] Figure 2 This is a schematic structural diagram of the range hood of the present invention when the air intake port is closed and the telescopic panel assembly is partially extended;

[0021] Figure 3 This is a structural diagram of the range hood of the present invention when the air intake port is open;

[0022] Figure 4 This is a schematic diagram of the partial structure of the range hood of the present utility model;

[0023] Figure 5for Figure 4 A schematic diagram of the enlarged structure of the middle part A;

[0024] Figure 6 This is a side view of the range hood of the present invention with the telescopic panel assembly partially extended;

[0025] Figure 7 It is a partial cross-sectional structural diagram of the range hood of the present invention.

[0026] In the figure: 1. Air collecting chamber; b. Telescopic inner chamber; 1. Range hood body; 11. Top plate; 111. Air intake port; 112. Avoidance slot; 2. Telescopic panel assembly; 21. Connecting piece; 211. Sliding slot; 22. Air inlet hole of air curtain; 23. Detection hole; 24. Air outlet hole of air curtain; 25. Lighting window; 3. Movable baffle; 31. Baffle bracket; 4. Connecting assembly; 41. Connecting pin; 42. Guide piece; 43. Sliding piece; 5. Drive assembly; 51. Reducer motor; 52. Gear; 53. Rack; 6. Guide assembly.

[0027] 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

[0028] 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.

[0029] 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.

[0030] 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.

[0031] 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:

[0032] This utility model discloses a range hood. Figures 1 to 7 , including a range hood body 1, a telescopic panel assembly 2 and a movable baffle 3.

[0033] The range hood body 1 has a top plate 11, above which are provided an air collecting chamber a and a telescopic inner chamber b. The top plate 11 is provided with an air suction port 111, which is connected to the air collecting chamber a, and the telescopic inner chamber b is located in front of the air collecting chamber a.

[0034] The telescopic panel assembly 2 is slidably connected in the telescopic inner cavity b.

[0035] The 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 .

[0036] During the process of the telescopic panel assembly 2 extending or retracting into the telescopic inner cavity b, the movable baffle 3 has a state of relative movement with the telescopic panel assembly 2 and a state of relative stillness with the telescopic panel assembly 2 .

[0037] In this embodiment, if the range hood is observed from the perspective of a user when in use, the range hood body 1 , the top plate 11 and the movable baffle 3 are installed and arranged in sequence from top to bottom.

[0038] When in use, the air intake 111 is located at the rear end of the top plate 11 relatively close to the wall, and is located obliquely above the gas outlet of the stove in the vertical direction. During the cooking process, the movable baffle 3 slides and opens the air intake 111, and the oil smoke is sucked into the air collecting chamber a connected to the air intake 111, so that the oil smoke is sucked and discharged through the air intake 111.

[0039] On the basis of the above embodiment, an oil cup indirectly connected to the air collecting chamber a is provided at the rear end of the range hood body 1 to collect oil.

[0040] In this embodiment, a functional device (details will be described later) may be provided at the front end of the telescopic panel assembly 2 , and the functional device is used to assist in the use of the range hood and enhance the user experience.

[0041] As one of the usage modes, only the portion of the telescopic panel assembly 2 where the functional components are provided is extended out of the telescopic inner cavity b. That is, after the range hood is turned on, the telescopic panel assembly 2 moves out of the telescopic inner cavity b. During the process of the telescopic panel assembly 2 extending out of the telescopic inner cavity b, the movable baffle 3 is in a state of relative movement with the telescopic panel assembly 2. That is, when the telescopic panel assembly 2 moves and the front end extends out of the telescopic inner cavity b, the movable baffle 3 remains stationary. When the portion of the telescopic panel assembly 2 where the functional components are provided extends out of the telescopic inner cavity, the telescopic panel assembly 2 stops moving out of the telescopic inner cavity b. When the portion of the telescopic panel assembly 2 where the functional components are provided extends out of the telescopic inner cavity b, the movement length of the telescopic panel assembly 2 is L1. When the range hood is turned off, the telescopic panel assembly 2 retracts into the telescopic inner cavity b.

[0042] As the second way of use, the telescopic panel assembly 2 is fully extended from the telescopic inner cavity b, and the movable baffle 3 opens the air suction port 111, that is: after the part of the telescopic panel assembly 2 provided with the functional device is extended from the telescopic inner cavity b, the length of the telescopic panel assembly 2 extended from the telescopic inner cavity b is L1, and then the telescopic panel assembly 2 continues to extend from the telescopic inner cavity b. At this time, the movable baffle 3 moves with the telescopic panel assembly 2. When the movable baffle 3 moves with the telescopic panel assembly 2, the telescopic panel assembly 2 and the movable baffle 3 move synchronously, and the two remain in a relatively static state. When the telescopic panel assembly is extended from the telescopic inner cavity b to a length of L2, the telescopic panel assembly 2 is fully extended from the telescopic inner cavity b, and the movable baffle 3 opens the air suction port 111. At this time, when the smoke exhaust fan is running, the oil smoke will enter the air collecting cavity a through the air suction port 111. Similarly, when the cigarette smoke machine 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 until the movable baffle 3 covers the functional device on the lower surface, the length of movement of the telescopic panel assembly 2 is L1. At this time, the air intake 111 is in an open state. Continue to move the telescopic panel assembly 2, and the movable baffle 2 begins to move with the telescopic panel assembly 2. The two maintain a relatively stationary state until the telescopic panel group 2 is completely retracted into the telescopic inner cavity b, and the movable baffle 2 completely closes the air intake 111.

[0043] See also Figures 4 to 7In the range hood of the present invention, the process of the telescopic panel assembly 2 extending / retracting the telescopic inner cavity b is divided into a first stage and a second stage. In the first stage, the telescopic panel assembly 2 extends / retracts the telescopic inner cavity b, and the movable baffle 3 is stationary relative to the top plate 11. In the second stage, the telescopic panel assembly 2 extends / retracts the telescopic inner cavity b, and the movable baffle 3 moves with the telescopic panel assembly 2, and the movable baffle 3 moves relative to the top plate 11. After the range hood is turned on, the telescopic panel assembly 2 enters the first stage of extending from the telescopic inner cavity b. In this stage, when the telescopic panel assembly 2 extends out of the telescopic inner cavity b, the movable baffle 3 has a state of relative movement with the telescopic panel assembly 2, that is, when the telescopic panel assembly 2 moves and the front end extends out of the telescopic inner cavity b, the movable baffle 3 remains stationary; after completing the first stage, the part of the telescopic panel assembly 2 provided with functional devices extends out of the telescopic inner cavity b. At this time, the length of movement of the telescopic panel assembly 2 is L1, and then the telescopic panel assembly 2 enters the second stage of extending from the telescopic inner cavity b. In this stage, the telescopic panel assembly 2 continues to extend from the telescopic inner cavity b. At this time, the movable baffle 3 moves with the telescopic panel assembly 2. When the movable baffle 3 moves with the telescopic panel assembly 2, the telescopic panel assembly 2 moves synchronously with the movable baffle 3, and the two remain in a relatively stationary state. When the telescopic panel assembly extends out of the telescopic inner cavity b to a length of L2, the telescopic panel assembly 2 is completely extended out of the telescopic inner cavity b, and the movable baffle 3 opens the air intake 111. After the hood is turned off, the telescopic panel assembly 2 enters the first stage of retracting the telescopic inner cavity b. In this stage, 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 until the movable baffle 3 covers the functional components on the lower surface, the length of movement of the telescopic panel assembly 2 is L1. At this time, the first stage ends, and the telescopic panel assembly 2 enters the second stage of retracting the telescopic inner cavity b. In this stage, the telescopic panel assembly 2 continues to retract toward the telescopic inner cavity b, and the movable baffle 2 begins to move with the telescopic panel assembly 2. The two maintain a relatively stationary state until the telescopic panel assembly 2 is completely retracted into the telescopic inner cavity b and the movable baffle 2 completely closes the air intake 111.

[0044] See also Figures 4 to 7In the range hood of the present invention, a connecting piece 21 is provided on the telescopic panel assembly 2, and a sliding groove 211 is provided on the connecting piece 21. A connecting component 4 is slidably connected to the top plate 11, and the connecting component 4 is connected to the movable baffle 3. The connecting component 4 has a connecting pin 41, and the connecting pin 41 is slidably connected to the sliding groove 211. The sliding groove 211 has a first end close to the telescopic panel assembly 2 and a second end away from the telescopic panel assembly 2. When the connecting pin 41 slides relatively in the sliding groove 211, the movable baffle 3 is in a state of relative movement with the telescopic panel assembly 2; when the telescopic panel assembly 2 moves and causes the first end or the second end of the sliding groove 211 to apply force to the connecting pin 41, the movable baffle 3 moves with the telescopic panel assembly 2 and is in a state of relative stillness with the telescopic panel assembly 2. When the telescopic panel assembly 2 extends out of the telescopic inner cavity b, if the connecting pin 41 is relatively stationary relative to the sliding groove 211, it means that the connecting pin 41 is located at the second end of the sliding groove 211. At this time, the connecting member 21 applies force to the connecting pin 41, so that the connecting assembly 4 drives the movable baffle 3 to move with the telescopic panel assembly 2; when the telescopic panel assembly 2 retracts into the telescopic inner cavity b, if the connecting pin 41 is relatively stationary relative to the sliding groove 211, it means that the connecting pin is located at the first end of the sliding groove 211. At this time, the connecting member 21 applies force to the connecting pin 41, so that the connecting assembly 4 drives the movable baffle 3 to move with the telescopic panel assembly 2.

[0045] In an embodiment of the present invention, the connecting member 21 is a long strip plate-like structure with its length direction along the horizontal opening direction of the telescopic inner cavity b (i.e., the direction of movement of the telescopic panel assembly 2); the length direction of the sliding groove 211 extends along the length direction of the connecting member 21, and it can be a strip groove or a rectangular groove.

[0046] The connecting pin 41 can be a cylindrical pin, a bolt, etc., and its outer diameter is equal to the groove width of the sliding groove 211, so as to form a limit for the connecting pin 41 through the inner wall of the groove width direction of the sliding groove 211, so that the connected connecting component 4 and the movable baffle 3 will only move along the horizontal opening direction of the telescopic inner cavity b.

[0047] In this embodiment, the sliding groove 211 is shown as a strip-shaped groove, and the connecting pin 41 is shown as a cylindrical pin. The sliding groove 211 has a first end close to the telescopic panel assembly 2, specifically the curved inner wall of the sliding groove 211 close to the telescopic panel assembly 2; the sliding groove 211 has a second end away from the telescopic panel assembly 2, specifically the other curved inner wall of the sliding groove 211 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 sliding groove 211 to prevent the connecting pin 41 from getting stuck when it abuts the two curved inner walls of the sliding groove 211.

[0048] When the connecting pin 41 slides relatively within the sliding groove 211, the connecting pin 41 slides between the two curved inner walls of the sliding groove 211, which is shown as a strip groove. When the telescopic panel assembly 2 moves and the first end or the second end of the sliding groove 211 applies force to the connecting pin 41, the side surface of the connecting pin 41 abuts against one of the curved inner walls of the sliding groove 211, which is shown as a strip groove.

[0049] See also Figures 4 to 7 , the range hood of the present invention, when the connecting pin 41 is located at the first end of the sliding groove 211, if the telescopic panel assembly 2 moves in the direction of extending out of the telescopic inner cavity b, the movable baffle 3 will maintain a state of relative movement with the telescopic panel assembly 2 until the second end of the sliding groove 211 moves to the connecting pin 41. At this time, if the telescopic panel assembly 2 continues to move in the direction of extending out of the telescopic inner cavity b, the movable baffle 3 moves with the telescopic panel assembly 2 and keeps the telescopic panel assembly 2 in a relatively stationary state; when the connecting pin 41 is located at the second end of the sliding groove 211, if the telescopic panel assembly 2 moves in the direction of retracting the telescopic inner cavity b, the movable baffle 3 will maintain a state of relative movement with the telescopic panel assembly 2 until the first end of the sliding groove 211 moves to the connecting pin 41. At this time, if the telescopic panel assembly 2 continues to move in the direction of retracting the telescopic inner cavity b, the movable baffle 3 moves with the telescopic panel assembly 2 and keeps the telescopic panel assembly 2 in a relatively stationary state.

[0050] The distance between the first end and the second end of the sliding groove 211 is the maximum distance that the telescopic panel assembly 2 moves before the movable baffle 3. The telescopic panel assembly 2 and the movable baffle 3 move relative to each other. When this distance is reached, the connecting pin 41 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.

[0051] When the connecting pin 41 is located at the first end of the sliding groove 211, when the telescopic panel assembly 2 moves in the direction of extending out of the telescopic inner cavity b, the connecting member 21 does not apply force to the connecting pin 41. At this time, the connecting pin 41 slides relative to the sliding groove 211, and the second end of the sliding groove 211 approaches the connecting groove 41. After the second end of the sliding groove 211 moves to the connecting pin 41, the telescopic panel assembly 2 continues to move in the direction of extending out of the telescopic inner cavity b, the connecting member 21 will apply force to the connecting pin 41, and the connecting member 21 drives the connecting assembly 4 to move through the connecting pin 41, so that the connecting assembly 4 drives the movable baffle 3 to move, so that the movable baffle 3 and the telescopic panel assembly 2 remain relatively stationary.

[0052] When the telescopic panel assembly 2 is fully extended from the telescopic inner cavity b and the movable baffle 3 opens the air intake port 111, the connecting pin 41 is located at the second end of the sliding groove 211. After shutting down, the telescopic panel assembly 2 begins to move in the direction of retracting the telescopic inner cavity b. At this time, the first end of the sliding groove 211 moves toward the connecting pin 41, and the connecting pin 41 slides relatively in the sliding groove 211. The movable baffle 3 and the telescopic panel assembly 2 move relative to each other. When the first end of the sliding groove 211 moves to the connecting pin 41, when the telescopic panel assembly 2 continues to slide into the telescopic inner cavity b, the connecting member 21 will apply force to the connecting pin 41, and the connecting member 21 causes the connecting assembly 4 to drive the movable baffle 3 to move through the connecting pin 41, so that the movable baffle 3 and the telescopic panel assembly 2 remain in a relatively static state.

[0053] See also Figure 4 and Figure 5 In the range hood of the present invention, a avoidance groove 112 is provided on the top plate 11, the connecting component 4 is slidably connected to the top of the top plate 11 and is arranged corresponding to the avoidance groove 112, and a baffle bracket 31 is provided on the movable baffle 3, the baffle bracket 31 is slidably connected to the avoidance groove 112, and the baffle bracket 31 is connected to the connecting component 4.

[0054] The baffle bracket 31 is arranged vertically, and includes a vertical rod and a horizontal plate. The lower end of the vertical rod is fixedly connected to the movable baffle 3, and the upper end passes through the avoidance groove 112 and extends above the top plate 11. The horizontal plate is fixedly connected to the upper end of the vertical rod and is connected to the connecting component 4 through multiple screws.

[0055] Through the setting of the avoidance groove 112, the connecting component 4 is connected to the movable baffle 3 through the baffle bracket 31, and through the avoidance setting of the avoidance groove 112, when the movable baffle 3 and the telescopic panel component 2 move synchronously, the avoidance groove 112 can form a movement avoidance for the baffle bracket 31.

[0056] According to one embodiment of the present invention, please refer to Figure 4 and Figure 5 The connecting component 4 includes a guide member 42 and a sliding member 43. The guide member 42 is arranged above the top plate 11. The sliding member 43 is slidably connected to the guide member 42. The baffle bracket 31 is connected to the sliding member 43. The sliding member 43 is provided with a connecting pin 41.

[0057] The guide member 42 can be a long rail structure arranged along the horizontal opening direction of the telescopic inner cavity b, which is provided with an upwardly opening chute, such as: the guide member 42 can be made of U-shaped steel. The lower end of the sliding member 43 is adapted and slidably connected to the upwardly opening chute of the guide member 42.

[0058] Based on the above embodiment, the horizontal plate of the baffle bracket 31 is connected to the sliding member 43 by multiple screws and is connected to the rear end of the sliding member 43. The connecting member 21 is located above the front end of the sliding member 43, and the connecting pin 41 provided at the front end of the sliding member 43 is slidably connected to the sliding groove 211 of the connecting member 21.

[0059] When the movable baffle 3 and the telescopic panel assembly 2 move synchronously, driven by the connecting pin 41, the sliding member 43 slides relative to the guide member 42, and the baffle bracket 31 connected to the sliding member 43 slides synchronously, thereby driving the movable baffle 3 to move synchronously through the moving baffle bracket 31.

[0060] See also Figures 4 to 7 The range hood of the present invention further includes a driving assembly 5, which is disposed in the telescopic inner cavity b and is used to drive the telescopic panel assembly 2 to extend or retract into the telescopic inner cavity b.

[0061] When the user controls the telescopic panel assembly 2 to extend or retract alone, or to extend or retract together with the movable baffle 3, the user only needs to start the driving assembly 5, and the driving assembly 5 can drive the telescopic panel assembly 2 to move and control the moving direction of the telescopic panel assembly 2.

[0062] See also Figures 4 to 7 The range hood of the present invention, the driving assembly 5 includes a reduction motor 51, a gear 52 and a rack 53, 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, and the gear 52 is connected to the rack 53.

[0063] Driven by the reduction motor 51 , the driving gear 52 rotates, driving the rack 53 to move, thereby driving the telescopic panel assembly 2 to extend or retract into the telescopic inner cavity b.

[0064] The reduction motor 51 is fixedly connected to the telescopic inner cavity b via a connecting plate. The gear 52 is coaxially fixedly connected to the output end of the reduction motor 51. The length direction of the rack 53 extends along the horizontal opening direction of the telescopic inner cavity b.

[0065] See also Figures 4 to 7 The range hood of the present invention has two drive assemblies 5. The racks 53 of the two drive assemblies 5 are respectively connected to the two sides of the telescopic panel assembly 2. The two side walls of the telescopic inner cavity b are provided with guide assemblies 6. The guide assembly 6 includes guide rails and slides. The guide rails are fixedly connected to the two side walls of the telescopic inner cavity b, and the slides are slidably connected to the guide rails. The racks 53 are connected to the telescopic panel assembly 2 and the slides.

[0066] Specifically, the rack 53 is fixedly connected to the telescopic panel assembly 2 and the slide bar at the same time.

[0067] The reduction motor 51 drives the gear 52 to rotate, driving the rack 53 to move, thereby moving the telescopic panel assembly 2 connected to the rack 53. The slide bar is slidably connected to the guide rail, indirectly forming a limit on the extension or retraction length of the telescopic panel assembly 2 through the guide rail.

[0068] In 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, a wind curtain air inlet hole 22 corresponding to the wind 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 a wind curtain air outlet hole 24 corresponding to the wind 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 extended out of the telescopic inner cavity b, the lighting assembly and / or the air curtain assembly and / or the air quality detection module are extended out of the telescopic inner cavity b along with the telescopic panel assembly 2.

[0069] See also Figures 1 to 7 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, and 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 are provided on the top plate of the telescopic panel assembly 2. An air curtain air outlet hole 24 corresponding to the air 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 extended out of the telescopic inner cavity b, the lighting assembly, the air curtain assembly and the air quality detection module are extended out of the telescopic inner cavity b along with the telescopic panel assembly 2.

[0070] When the range hood is started, if the distance moved by the telescopic panel assembly 2 is L1, the wind curtain air inlet hole 22 corresponding to the wind curtain assembly and the detection hole 23 corresponding to the air quality detection module provided on the top plate of the telescopic panel assembly 2 are moved out of the telescopic inner cavity b, and the wind curtain air outlet hole 24 corresponding to the wind curtain assembly and the lighting window 25 corresponding to the lighting assembly on the bottom plate of the telescopic panel assembly 2 are moved out of the telescopic inner cavity b. At this time, the lighting assembly in these functional devices can be started to realize the lighting function.

[0071] 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 b, 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 b. 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.

[0072] After the telescopic panel assembly 2 is fully extended out of the telescopic inner cavity, the air curtain assembly, the lighting assembly and the air quality detection assembly are activated. The air curtain assembly draws air through the air curtain inlet hole 22 and exhausts air downward through the air curtain outlet hole 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 to provide feedback on the purification effect of the oil fume when the range hood is working. The lighting assembly transmits light downward through the lighting window 25, making it easier for the user to observe the ingredients being cooked. After the user completes the cooking operation, the air curtain assembly is closed, the air quality detection module is closed, the lighting assembly is closed, and the drive assembly 5 drives the telescopic panel assembly 2 to retract into the telescopic inner cavity b. After the telescopic panel assembly 2 is fully retracted into the telescopic inner cavity b, the drive assembly 5 stops moving.

[0073] Among them, the lighting component and / or the air curtain component and / or the air quality detection module are the aforementioned functional devices.

[0074] As the above-mentioned specific usage method, when the front end of the telescopic panel assembly 2 is extended relative to the movable baffle 3, that is, the lower surface of the front end of the telescopic panel assembly 2 is exposed relative to the movable baffle 3, so as to ensure the full display and use of the above-mentioned functional devices.

[0075] 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), an air collecting chamber (a) and a telescopic inner chamber (b) are provided above the top plate (11), an air suction port (111) is provided on the top plate (11), the air suction port (111) is communicated with the air collecting chamber (a), and the telescopic inner chamber (b) is located at the front side of the air collecting chamber (a); a telescopic panel assembly (2) slidably connected in the telescopic inner cavity (b); 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); During the process of the telescopic panel assembly (2) extending or retracting into the telescopic inner cavity (b), the movable baffle (3) has a state of relative movement with the telescopic panel assembly (2) and a state of relative stillness with the telescopic panel assembly (2).

2. The range hood according to claim 1, characterized in that: The process of the telescopic panel assembly (2) extending / retracting the telescopic inner cavity (b) is divided into a first stage and a second stage. In the first stage, the telescopic panel assembly (2) extends / retracts the telescopic inner cavity (b), and the movable baffle (3) is stationary relative to the top plate (11). In the second stage, the telescopic panel assembly (2) extends / retracts the telescopic inner cavity (b), and the movable baffle (3) moves with the telescopic panel assembly (2), and the movable baffle (3) moves relative to the top plate (11).

3. The range hood according to claim 1, characterized in that: The telescopic panel assembly (2) is provided with a connecting member (21), and the connecting member (21) is provided with a sliding groove (211). The top plate (11) is slidably connected with a connecting member (4), and the connecting member (4) is connected to the movable baffle (3). The connecting member (4) has a connecting pin (41), and the connecting pin (41) is slidably connected in the sliding groove (211). The sliding groove (211) has a first end close to the telescopic panel assembly (2) and a second end away from the telescopic panel assembly (2). When the connecting pin (41) slides relatively in the sliding groove (211), the movable baffle (3) is in a state of relative movement with the telescopic panel assembly (2); when the telescopic panel assembly (2) moves and causes the first end or the second end of the sliding groove (211) to apply force to the connecting pin (41), the movable baffle (3) moves with the telescopic panel assembly (2) and is in a state of relative stillness with the telescopic panel assembly (2).

4. The range hood according to claim 3, characterized in that: When the connecting pin (41) is located at the first end of the sliding slot (211), if the telescopic panel assembly (2) moves in a direction extending out of the telescopic inner cavity (b), the movable baffle (3) will maintain a state of relative movement with the telescopic panel assembly (2) until the second end of the sliding slot (211) moves to the connecting pin (41). At this time, if the telescopic panel assembly (2) continues to move in a direction extending out of the telescopic inner cavity (b), the movable baffle (3) moves with the telescopic panel assembly (2) and maintains the telescopic panel assembly (2) in a relatively stationary state; When the connecting pin (41) is located at the second end of the sliding slot (211), if the telescopic panel assembly (2) moves in the direction of retracting the telescopic inner cavity (b), the movable baffle (3) will maintain a state of relative movement with the telescopic panel assembly (2) until the first end of the sliding slot (211) moves to the connecting pin (41). At this time, if the telescopic panel assembly (2) continues to move in the direction of retracting the telescopic inner cavity (b), the movable baffle (3) moves with the telescopic panel assembly (2) and maintains the telescopic panel assembly (2) in a relatively stationary state.

5. The range hood according to claim 3, characterized in that: The top plate (11) is provided with an avoidance groove (112), the connecting assembly (4) is slidably connected to the top of the top plate (11) and is arranged corresponding to the avoidance groove (112), the movable baffle (3) is provided with a baffle bracket (31), the baffle bracket (31) is slidably connected to the avoidance groove (112), and the baffle bracket (31) is connected to the connecting assembly (4).

6. The range hood according to claim 5, characterized in that: The connecting assembly (4) includes a guide member (42) and a sliding member (43), wherein the guide member (42) is provided above the top plate (11), the sliding member (43) is slidably connected to the guide member (42), the baffle bracket (31) is connected to the sliding member (43), and the sliding member (43) is provided with the connecting pin (41).

7. The range hood according to claim 3, characterized in that: It also includes a driving assembly (5), which is arranged in the telescopic inner cavity (b) and is used to drive the telescopic panel assembly (2) to extend or retract into the telescopic inner cavity (b).

8. The range hood according to claim 7, characterized in that: The driving assembly (5) comprises a reduction motor (51), a gear (52) and a rack (53); 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); and the gear (52) is connected to the rack (53).

9. The range hood according to claim 8, characterized in that: The number of the driving components (5) is two, and the racks (53) of the two driving components (5) are respectively connected to the two sides of the telescopic panel component (2), and the two side walls of the telescopic inner cavity (b) are provided with guide components (6), and the guide components (6) include guide rails and slide bars, the guide rails are fixedly connected to the two side walls of the telescopic inner cavity (b), and the slide bars are slidably connected in the guide rails, and the racks (53) are connected to the telescopic panel component (2) and the slide bars.

10. The range hood according to claim 1, characterized in that: A lighting assembly and / or an air curtain assembly and / or an air quality detection module are provided in the installation cavity of the telescopic panel assembly (2); 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 are 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 are provided on the bottom plate of the telescopic panel assembly (2); when the telescopic panel assembly (2) extends out of the telescopic inner cavity (b), the lighting assembly and / or the air curtain assembly and / or the air quality detection module extend out of the telescopic inner cavity (b) along with the telescopic panel assembly (2).

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