A smoke collecting hood and a range hood

Abstract

The present application provides a smoke collecting hood and a range hood. The smoke collecting hood includes a first smoke baffle assembly and a second smoke baffle assembly. The first smoke baffle assembly includes two opposite first smoke baffle members, and the second smoke baffle assembly includes two opposite second smoke baffle members. The first smoke baffle member and the second smoke baffle member are respectively movably connected to the inner wall of the range hood body to switch between an unfolded state and a stored state. With this smoke collecting hood, in the use state, the first smoke baffle assembly and the second smoke baffle assembly are unfolded to enhance the smoke collecting effect, and in the non-use state, the first smoke baffle assembly and the second smoke baffle assembly can be stored to avoid occupying too much space.

Description

Technical Field

[0001] The present invention relates to the field of kitchen appliances, and more particularly, to a smoke collecting hood and a range hood including the smoke collecting hood. Background Art

[0002] With the improvement of people's living standards, the requirement for kitchen cleanliness has also increased, and the range hood has become an indispensable kitchen utensil. For the range hoods on the market today, the air volume has basically met the daily use needs of consumers, and consumers have taken the appearance as an important reference index for purchasing a range hood.

[0003] When the top-mounted range hood is installed in cooperation with the cabinet, the cabinet body is often installed inside the cabinet, and the smoke collecting hood is exposed below the cabinet. In order to have a better smoke collecting effect, the smoke collecting cavity of the range hood is often designed to be relatively large, which makes the range hood take up more space. When the range hood is not in use, the smoke collecting hood is easy to hit the head, and at the same time, it makes the kitchen space look more crowded visually. Summary of the Invention

[0004] In view of the above problems in the prior art, the present application proposes a retractable smoke collecting hood and a range hood including the smoke collecting hood. When not in use, the range hood can retract and fold the smoke collecting hood, making the kitchen look more concise and beautiful without sacrificing the smoke collecting effect of the smoke collecting hood.

[0005] In a first aspect, the present invention provides a smoke collecting hood, which includes a first smoke baffle assembly and a second smoke baffle assembly. The first smoke baffle assembly includes two opposite first smoke baffle members, and the second smoke baffle assembly includes two opposite second smoke baffle members. The first smoke baffle member and the second smoke baffle member are respectively movably connected to the inner wall of the range hood cabinet to switch between an unfolded state and a stored state. Through this smoke collecting hood, in the use state, the first smoke baffle assembly and the second smoke baffle assembly are unfolded to enhance the smoke collecting effect, and in the non-use state, the first smoke baffle assembly and the second smoke baffle assembly can be stored, avoiding occupying too much space.

[0006] In an embodiment of the first aspect, the first smoke baffle member is configured to extend out of or retract into the range hood cabinet to switch between an unfolded state and a retracted state; the second smoke baffle member is configured to flip open or fold relative to the range hood cabinet to switch between an unfolded state and a folded state. Through this embodiment, the first smoke baffle assembly is unfolded and stored in a telescopic form, and the second smoke baffle assembly is unfolded and stored in a flipping form.

[0007] In an embodiment of the first aspect, the first smoke baffle member includes: a first smoke baffle; a guide rail mechanism including two mutually parallel guide rails vertically provided on opposite inner walls of the range hood cabinet respectively; and a sliding mechanism fixedly connected to the first smoke baffle and having a first slider and a second slider provided at both ends thereof for sliding in the guide rail mechanism. Through this embodiment, the first smoke baffle can slide along the guide rail so as to extend or retract integrally from or into the cabinet.

[0008] In an embodiment of the first aspect, the first smoke baffle member includes: a sliding drive motor for driving the sliding of the first slider and the second slider in the corresponding guide rails; or a holding unit provided at the top of at least one of the two guide rails for holding the slider fixed after the slider slides into place. Through this embodiment, on the one hand, the slider can be electrically driven to slide in the guide rail by the sliding drive motor, saving manpower; on the other hand, by means of the holding unit, the first smoke baffle can be manually pulled out of or pushed back into the cabinet along the guide rail and held in place at the holding unit.

[0009] In an embodiment of the first aspect, the sliding mechanism further includes: a motion main shaft fixedly connected to the first smoke baffle and rotatably connected to the first slider and the second slider at both ends thereof through bearings respectively; and a transmission unit including a driving gear provided on the first slider and a driven gear provided on the motion main shaft, the driven gear meshing with the driving gear. Through this embodiment, in the deployed state, the first smoke baffle can rotate relative to the cabinet at a certain angle, increasing the smoke gathering area and enhancing the smoke gathering effect.

[0010] In an embodiment of the first aspect, the transmission unit further includes: a rotation drive motor for driving the rotation of the driving gear and thus driving the rotation of the motion main shaft. Through this embodiment, the rotation of the first smoke baffle relative to the cabinet is affected by electric control.

[0011] In an embodiment of the first aspect, in the deployed state, the angle between the first smoke baffle and the plane where the bottom of the range hood cabinet is located is 90° - 180°.

[0012] In an embodiment of the first aspect, the motion main shaft is connected to the first smoke baffle by welding or adhesive.

[0013] In an embodiment of the first aspect, the second smoke baffle member includes: a second smoke baffle; a crank fixedly connected to the second smoke baffle, and a bent portion of the crank is hinged to a first hinge bracket fixedly arranged on the inner wall of the box body; and an electric push rod, both ends of which are respectively hinged to a second hinge bracket fixedly arranged on the inner wall of the box body and a free end of the crank; wherein, the electric push rod can drive the crank to rotate around the first hinge bracket, thereby driving the second smoke baffle to flip open or fold. Through this embodiment, the second smoke baffle flips relative to the box body under the drive of the electric push rod and the crank.

[0014] In an embodiment of the first aspect, in the unfolded state, the included angle between the second smoke baffle and the plane where the bottom of the range hood box body is located is 90° - 180°.

[0015] In an embodiment of the first aspect, the crank and the second smoke baffle are connected by welding or adhesive.

[0016] In an embodiment of the first aspect, the smoke collecting hood further includes: a smoke sensor for sensing the oil fume content in the environment when the range hood is not started; and a controller for controlling the extension of the first smoke baffle assembly and the flipping open of the second smoke baffle assembly according to the smoke content signal received from the smoke sensor. Through this embodiment, the unfolding of the smoke baffle assembly can be intelligently controlled, improving the user experience.

[0017] In an embodiment of the first aspect, the area of the second smoke baffle is half of the area of the opening of the smoke collecting cavity. Through this embodiment, in the non-use state, the two second smoke baffles just enclose the smoke collecting cavity after folding, hiding the internal structure of the range hood and enhancing the aesthetic effect.

[0018] In an embodiment of the first aspect, both the first smoke baffle member and the second smoke baffle member are configured to extend or retract from the range hood box body to switch between the unfolded state and the retracted state.

[0019] In an embodiment of the first aspect, both the first smoke baffle member and the second smoke baffle member are configured to flip relative to the range hood box body to switch between the unfolded state and the folded state.

[0020] In the second aspect, the present application further provides a range hood, which includes the smoke collecting hood of the first aspect and any of its embodiments.

[0021] In an embodiment of the second aspect, the range hood further includes a range hood box body, a fan assembly and an oil mesh.

[0022] The smoke collecting hood provided by this application and the range hood including this smoke collecting hood have the following beneficial effects compared with the prior art:

[0023] (1) In the use state, the smoke baffle can be unfolded to enhance the smoke gathering effect; in the non-use state, the smoke baffle can be stored, saving the occupied space of the smoke collecting hood;

[0024] (2) When the smoke baffle is in the folded state, the smoke collecting cavity of the range hood can be closed, improving the aesthetic effect;

[0025] (3) Through the smoke sensor and the controller, the intelligent control of the unfolding and storage of the smoke baffle is realized.

[0026] The above technical features can be combined in various suitable ways or replaced by equivalent technical features as long as the purpose of the present invention can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Hereinafter, the present invention will be described in more detail based on embodiments and with reference to the drawings. Among them:

[0028] Figure 1 shows a schematic structural diagram of a range hood according to an embodiment of the present invention;

[0029] Figure 2 shows an exploded schematic diagram of a range hood according to an embodiment of the present invention;

[0030] Figure 3 shows a schematic diagram of a first smoke baffle member in the unfolded and stored states according to an embodiment of the present invention;

[0031] Figure 4 shows an exploded schematic diagram of a first smoke baffle member according to an embodiment of the present invention;

[0032] Figure 5 shows an assembly schematic diagram of a first smoke baffle assembly and a range hood cabinet according to an embodiment of the present invention;

[0033] Figure 6 shows a schematic structural diagram of a second smoke baffle member according to an embodiment of the present invention;

[0034] Figure 7 shows an exploded schematic diagram of a second smoke baffle member according to an embodiment of the present invention;

[0035] Figure 8 shows an assembly schematic diagram of a second smoke baffle assembly and a range hood cabinet according to an embodiment of the present invention;

[0036] Figure 9 shows a schematic diagram of a range hood assembled in a cabinet according to an embodiment of the present invention.

[0037] In the drawings, like parts are designated by like reference numerals. The drawings are not drawn to scale.

[0038] List of reference numerals:

[0039] 1000 - Range hood; 1100 - Smoke collecting hood; 1200 - Range hood cabinet; 1300 - Fan assembly; 1400 - Oil screen; 1110 - First smoke baffle member; 1120 - Second smoke baffle member; 1111 - First smoke baffle; 1112A - First guide rail; 1112B - Second guide rail; 1113 - Sliding mechanism; 1114 - Movement main shaft; 1114A - Protrusion; 1115A - First slider; 1115B - Second slider; 1116A - Driving gear; 1116B - Driven gear; 1117 - Bearing; 1121 - Second smoke baffle; 1122 - Crank; 1123 - Electric push rod; 1124 - First hinge bracket; 1125 - Second hinge bracket; 2000 - Installation cabinet. Detailed implementation manners

[0040] The present invention will be further described below with reference to the drawings.

[0041] Figure 1 And Figure 2 are respectively the overall structure schematic diagram and the exploded schematic diagram of the range hood 1000 provided by the present invention. It should be understood that the structure of the smoke collecting hood provided in the present application should be applicable to common top - suction range hoods. As Figure 1 and Figure 2 shown, the range hood 1000 includes a smoke collecting hood 1100, a range hood cabinet 1200, a fan assembly 1300 and an oil screen 1400. Among them, the smoke collecting hood 1100 is arranged at the bottom of the range hood cabinet 1200, and the opening of its smoke collecting cavity faces downward. The fan assembly 1300 and the oil screen 1400 are both connected to the inside of the range hood cabinet 1200 by screws to form the air duct system of the range hood. As Figure 9 shown, the range hood cabinet 1200 is integrally arranged in an installation cabinet 2000 (such as a kitchen cabinet) in the kitchen, for example, and the smoke collecting hood is located outside the installation cabinet 2000. The above - mentioned structures are all conventional settings in the art, which are well - known to those skilled in the art and will not be elaborated here.

[0042] Referring to Figure 9, the smoke collecting hood 1100 provided by the present invention can be in an unfolded state or a stored state relative to the range hood housing 1200 (or the installation cabinet 2000). When it is necessary to use the smoke collecting hood 1100 to enhance the smoke collecting effect, the smoke collecting hood is in the unfolded state. On the contrary, when the smoke collecting hood 1100 is not needed, the smoke collecting hood is in the stored state. In this way, while ensuring the smoke collecting effect of the range hood 1000, the smoke collecting hood 1100 is prevented from being in an exposed position at all times, saving a lot of space and reducing the safety risk of hitting people.

[0043] In a preferred embodiment provided by the present invention, the smoke collecting hood 1100 includes a first smoke baffle assembly and a second smoke baffle assembly. Among them, the first smoke baffle assembly includes two first smoke baffle members 1110 distributed oppositely, and the second smoke baffle assembly includes two second smoke baffle members 1120 distributed oppositely. These four smoke baffle members surround and form the smoke collecting hood 1100 of the present application to enhance the depth of the smoke collecting cavity and improve the smoke collecting effect. The first smoke baffle assembly and the second smoke baffle assembly can extend / retract into the range hood housing 1200 or flip and fold relative to the range hood housing 1200, so as to realize the switching of the smoke collecting hood 1100 between the unfolded state and the stored state.

[0044] For the purpose of illustration, hereinafter, the smoke collecting hood 1100 provided by the present invention will be described in detail by taking the structure that "the first smoke baffle assembly is configured to extend or retract into the range hood housing 1200 to switch between the unfolded state and the retracted state; the second smoke baffle member is configured to flip relative to the range hood housing 1200 to switch between the unfolded state and the folded state" as an example.

[0045] As Figure 2 shown, in the smoke collecting hood 1100 provided by the present invention, the first smoke baffle member 1110 can extend / retract into the range hood housing 1200, and the second smoke baffle member 1120 can flip and fold relative to the range hood housing 1200. That is to say, in the use state of the smoke collecting hood 1100, the first smoke baffle member 1110 extends out of the range hood housing 1200, and the second smoke baffle member 1120 flips and opens relative to the range hood housing 1200 to surround and form the smoke collecting hood; in the non-use state of the smoke collecting hood 1100, the first smoke baffle member 1110 retracts into the range hood housing 1200 and is hidden, and the second smoke baffle member 1120 flips and folds relative to the range hood housing 1200.

[0046] As Figure 2As shown, in this preferred embodiment, the first smoke baffle assembly is a left and right side smoke baffle assembly (correspondingly, the first smoke baffle is a left and right side smoke baffle), and the second smoke baffle assembly is a front and rear side smoke baffle assembly (correspondingly, the second smoke baffle is a front and rear smoke baffle). However, this is only for illustration and not limited thereto. It can also be that the first smoke baffle assembly is a front and rear side smoke baffle assembly, and the first smoke baffle assembly is a left and right side smoke baffle assembly.

[0047] Preferably, Figures 3 - 5 is a schematic diagram of the first smoke baffle member 1110 in the preferred embodiment of the present application. In Figure 3 , (a) is a schematic structural diagram of the first smoke baffle member 1110 in the retracted state, and (b) is a schematic structural diagram of the first smoke baffle member 1110 in the extended state. The first smoke baffle member 1110 includes: a first smoke baffle 1111, a guide rail mechanism, and a sliding mechanism 1113. Among them, the guide rail mechanism includes two mutually parallel guide rails, a first guide rail 1112A and a second guide rail 1112B, which are respectively vertically and fixedly arranged (for example, arranged by screws or adhesives) on the opposite inner walls of the range hood housing 1200. In the case where the first smoke baffle assembly is a left and right side smoke baffle assembly, the first guide rail 1112A and the second guide rail 1112B are respectively oppositely arranged on the front and rear inner walls of the range hood housing 1200 (preferably arranged close to the left or right inner wall). The sliding structure 1113 includes a motion main shaft 1114 and first sliders 1115A and second sliders 1115B arranged at both ends of the motion main shaft 1114. Among them, the motion main shaft 1114 is fixedly connected to the first smoke baffle 1111, and the first sliders 1115A and the second sliders 1115B are respectively engaged with the first guide rail 1112A and the second guide rail 1112B and can slide therein, thereby driving the first smoke baffle 1111 fixedly connected thereto to move vertically upward or downward (or at a certain angle with the bottom of the range hood housing, such as 80°). When the slider slides to the top of the guide rail, the first smoke baffle 1111 retracts into the range hood housing 1200, and when the slider slides to the bottom of the guide rail, the first smoke baffle 1111 extends into the range hood housing 1200.

[0048] Preferably, stoppers (not shown) are equally and highly arranged at the bottoms of the two guide rails to prevent the slider from further sliding downward when the slider slides to the bottom of the guide rail.

[0049] Preferably, stoppers (not shown) are equally and highly arranged at the tops of the two guide rails to prevent the slider from further sliding upward when the slider slides to the top of the guide rail.

[0050] As Figure 4As shown, the moving main shaft 1114 is a rod-shaped structure, and at least one protrusion 1114A is provided along its axial direction for fixedly connecting to the first smoke baffle 1111. Preferably, the protrusion can be fixedly connected to the first smoke baffle 1111 by welding, adhesive or screws.

[0051] Optionally, the two ends of the moving main shaft 1114 can be fixedly connected or movably connected to the first slider 1115A and the second slider 1115B.

[0052] In the embodiment where they are fixedly connected, the first smoke baffle 1111 is parallel to the plane where the two guide rails are located, that is, in the vertical plane, and the first smoke baffle 1111 can move up and down in this vertical plane.

[0053] In the embodiment where they are movably connected, as Figure 4 shown, bearing seats are relatively provided on the first slider 1115A and the second slider 1115B. The two ends of the moving main shaft 1114 can be respectively connected to the first slider 1115A and the second slider 1115B through bearings 1117, and they are driven by a transmission unit. The transmission unit can include a driving gear 1116A provided on any one of the two sliders (for example, the first slider 1115A) and a driven gear 1116B provided on the moving main shaft 1114. The driving gear 1116A and the driven gear 1116B mesh with each other. One of the driving gear 1116A or the driven gear 1116B drives the other gear under the action of rotational torque, and then drives the first smoke baffle 1111 to pivot outward relative to the range hood housing 1200 around the moving main shaft 1114. With this structure, in the use state of the smoke collecting hood 1100, the opening angle of the first smoke baffle 1111 relative to the range hood housing 1200 can be increased, the opening area of the smoke collecting hood can be increased, and the smoke gathering effect can be enhanced.

[0054] Preferably, in the unfolded state, the angle between the first smoke baffle 1111 and the plane where the bottom of the range hood housing 1200 is located is 90° to 180°, and more preferably 90° to 150°.

[0055] It should be understood that the first smoke baffle member 1110 can be operated in a manual mode or an electric mode.

[0056] In one embodiment, in manual mode, the first smoke baffle member 1110 is manually operated to be deployed or retracted. At least one holding unit (not shown) may also be provided along the length direction at the top of the first guide rail 1112A and / or the second guide rail 1112B, which can hold the slider in place after it slides to a specified position, preventing the slider and the smoke baffle from sliding downward due to their own gravity. In this way, the length of the first smoke baffle 1111 extending or retracting into the range hood housing 1200 can be manually controlled according to requirements. For example, when the oil fume content is high, the slider is held in place by the holding unit at the lower part of the guide rail, so that the first smoke baffle 1111 can extend more. When the oil fume content is low, the slider is held in place by the holding unit at the upper part of the guide rail, so that the first smoke baffle 1111 can extend less, further improving the user experience.

[0057] Preferably, in electric mode, the smoke collecting hood 1100 further includes a sliding drive motor (not shown), which can be disposed inside at least one of the first guide rail 1112A and the second guide rail 1112B, or at other positions, so as to drive the corresponding slider to slide along the guide rail; more preferably, the transmission unit may further include a rotary drive motor (not shown), which can be disposed inside the slider on which the driving gear 1116A is mounted, to drive the driving gear 1116A to rotate. The driving gear 1116A drives the driven gear 1116B to rotate, and then drives the moving main shaft 1114 to rotate, so that the first smoke baffle 1111 pivots accordingly.

[0058] It should be understood that the sliding drive motor and the rotary drive motor involved herein are control motors well known to those skilled in the art, such as servo motors or stepper motors, and are not limited herein.

[0059] To further improve the user experience, the range hood 1000 provided by the present invention may also be provided with a smoke sensor (not shown) and a controller (not shown). The smoke sensor can be disposed at any position of the range hood 1000 to detect the oil fume content (concentration) in the environment. If the oil fume content is greater than a preset first oil fume content threshold or less than a preset second oil fume content threshold (the first oil fume content threshold is greater than the second oil fume content threshold), an oil fume content signal is sent to the controller according to the oil fume content. In a preferred embodiment, after receiving the oil fume content signal, the controller can control an alarm (such as a buzzer or a lamp) provided on the range hood 1000 to remind the user to manually or electrically open the first smoke baffle assembly of the smoke collecting hood 1100 to achieve intelligent control of the extension of the first smoke baffle member 1110.

[0060] In the above electric operation mode, the controller here can also control the outputs of the sliding drive motor and / or the rotary drive motor to control the sliding distance of the slider in the guide rail and the pivoting angle of the first smoke baffle 1111.

[0061] As Figure 5 shown in (b) of [reference], in the non-use state, the first smoke baffle member 1110 is hidden inside the range hood housing 1200 and close to the inner wall of the housing. When the smoke collecting hood needs to be used, whether manually or electrically operated, the first smoke baffle 1111 first slides downward along the guide rail driven by the sliding of the first slider 1115A and the second slider 1115B, so that it gradually extends out of the range hood housing 1200 and is in a vertical state; optionally, as described above, then, the first smoke baffle 1111 pivots outward to a certain angle under the action of the transmission unit, so that the first smoke baffle 1111 is in an "inclined" state. Similarly, as Figure 5 shown in (a) of [reference], when the smoke collecting hood does not need to be used, the first smoke baffle 1111 can first pivot inward to a vertical state under the action of the transmission unit, and then slide upward along the guide rail mechanism driven by the first slider 1115A and the second slider 1115B and enter the range hood housing 1200 to retract into the range hood housing 1200.

[0062] Next, the second smoke baffle assembly and the second smoke baffle member of the present invention will be described in detail with reference to Figures 6 - 8 As described above, in Figures 6 - 8 , the second smoke baffle assembly is a front and rear baffle assembly, which can be switched between an unfolded state and a stored state in a flip-open or folded form. As Figure 6 and Figure 7 shown, the second smoke baffle member 1120 includes a second smoke baffle 1121, a crank 1122, an electric push rod 1123, a first hinge bracket 1124 and a second hinge bracket 1125. The first hinge bracket 1124 and the second hinge bracket 1125 are fixedly connected (such as by welding, adhesive bonding or screw connection) along the vertical direction to the front inner wall of the range hood housing 1200. The second hinge bracket 1125 is hinged to the first end of the electric push rod 1123, the first hinge bracket 1124 is hinged to the bent portion of the crank 1122, one end of the crank 1122 is at least partially fixedly connected (such as by welding, adhesive bonding or screw connection) to the second smoke baffle 1121, and the other end (free end) is hinged to the second end of the electric push rod 1123 through a hinge slider. By controlling the telescopic movement of the electric push rod 1123, the crank 1122 can be pushed and pulled to rotate around the first hinge bracket, thereby driving the second smoke baffle 1121 to flip, realizing the opening of the second smoke baffle 1121 (as Figure 8 shown in (a) of [reference]) and the folding inward (as Figure 8 shown in (b) of [reference]).

[0063] Preferably, in the unfolded state, the included angle between the second smoke baffle 1121 and the plane where the bottom of the range hood housing 1200 is located is 90° to 180°, and more preferably 90° to 150°.

[0064] Preferably, the two second smoke baffles 1121 of the second smoke baffle assembly can exactly close the opening of the smoke collecting cavity of the smoke collecting hood 1100 in the folded state, that is, the area of a single second smoke baffle 1121 is exactly half of the opening of the smoke collecting cavity, so as to hide the internal structure of the range hood 1000 and improve the aesthetic effect.

[0065] As described above, the smoke sensor and the controller of the range hood 1000 can also control the flipping and opening of the second smoke baffle assembly through the above process, which will not be elaborated here.

[0066] As Figure 9 shown in (a) and (b) of

[0067] In one embodiment described herein, during the process of the smoke collecting hood 1100 switching from the use state to the non-use state, the first smoke baffle assembly should be actuated first to retract the two first smoke baffles 1111 into the range hood housing 1200, and then the second smoke baffle assembly should be actuated to fold the two second smoke baffles 1121 inward to close (preferably seal) the opening of the smoke collecting cavity. Conversely, during the process of the smoke collecting hood 1100 switching from the non-use state to the use state, the second smoke baffle assembly should be actuated first to flip the two opposite second smoke baffles 1121 to the vertical position (or preferably to the outwardly inclined position), and then the first smoke baffle assembly should be actuated to extend the two opposite first smoke baffles 1111 out of the range hood housing 1200, whereby the two first smoke baffles 1111 and the two second smoke baffles 1121 surround to form the smoke collecting hood 1100 of the present application. Figures 1 - 9 The smoke collecting hood 1100 of one embodiment of the present invention has been introduced above in combination with Figures 6 - 8 However, the smoke collecting hood 1100 can also have various other structural variations. At the same time, those skilled in the art should understand that in these other preferred embodiments, the features of the first smoke baffle member and the features of the second smoke baffle member can be mutually applicable to achieve the corresponding effects. For example, in one embodiment, both the first smoke baffle member and the second smoke baffle member are configured to extend or retract from the range hood housing 1200 to switch between the unfolded state and the retracted state. The second smoke baffle member 1120 here adopts a different form from Figures 3 - 5The structural features of the first smoke baffle member 1110, that is, the second smoke baffle member 1120 also adopts the form of extending / retracting. Also, for example, in another embodiment, both the first smoke baffle member and the second smoke baffle member are configured to flip relative to the range hood cabinet 1200 to switch between the deployed state and the folded state. Here, the first smoke baffle member 1110 adopts a form different from Figures 3 - 5 the flipping form adopted in Figures 6 - 8 However, it can also adopt the structural features of the second smoke baffle member 1120 as described, that is, the first smoke baffle member 1110 also adopts the form of flipping open / folding.

[0068] For the smoke collecting hood provided by the present invention and the range hood including the smoke collecting hood, after installation, the cabinet of the range hood is located inside the cabinet. When the range hood is in use, four panels can be opened and combined into a smoke collecting hood; after the range hood is turned off, the left and right two panels can be retracted into the interior of the cabinet, and the front and rear two panels are folded inward to close. After the range hood is turned off, only the "door" composed of the front and rear panels can be seen from the outside, making the range hood invisible and the kitchen more beautiful.

[0069] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0070] Although the present invention has been described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed, as long as they do not deviate from the spirit and scope of the present invention as defined by the appended claims. It should be understood that the different dependent claims and the features described herein can be combined in a manner different from that described in the original claims. It should also be understood that the features described in connection with a single embodiment can be used in other described embodiments.

Claims

1. A smoke collecting hood, characterized in that, The smoke collecting hood includes a first smoke baffle assembly and a second smoke baffle assembly. The first smoke baffle assembly includes two opposite first smoke baffle members. The second smoke baffle assembly includes two opposite second smoke baffle members. The first smoke baffle member and the second smoke baffle member are respectively movably connected to the inner wall of the range hood cabinet to switch between an unfolded state and a stored state. The first smoke baffle member is configured to extend out of or retract into the range hood cabinet to switch between an unfolded state and a retracted state; The second smoke baffle member is configured to flip open or fold relative to the range hood cabinet to switch between an unfolded state and a folded state. The first smoke baffle member includes a first smoke baffle. The second smoke baffle member includes a second smoke baffle. The left and right sides of the second smoke baffle extend beyond the range hood cabinet. The first smoke baffle is a left and right side smoke baffle. The second smoke baffle is a front and rear smoke baffle. The two first smoke baffles and the two second smoke baffles surround to form a smoke collecting hood.

2. The smoke collecting hood according to claim 1, wherein, The first smoke baffle member includes: A first smoke baffle; A guide rail mechanism, which includes two parallel guide rails respectively vertically arranged on the opposite inner walls of the range hood cabinet; and A sliding mechanism, which is fixedly connected to the first smoke baffle, and both ends thereof are respectively provided with a first slider and a second slider for sliding in the guide rail mechanism.

3. The smoke collecting hood according to claim 2, wherein, The first smoke baffle member includes: A sliding drive motor, which is used to drive the first slider and the second slider to slide in the corresponding guide rails; or A holding unit, which is arranged at the top of at least one of the two guide rails to hold the slider fixed after the slider slides in place.

4. The smoke collecting hood according to claim 3, wherein, The sliding mechanism further includes: A motion main shaft, which is fixedly connected to the first smoke baffle, and both ends thereof are rotatably connected to the first slider and the second slider respectively through bearings; and A transmission unit, which includes a driving gear arranged on the first slider and a driven gear arranged on the motion main shaft, and the driven gear meshes with the driving gear.

5. The smoke collecting hood according to claim 4, characterized in that, The transmission unit further includes: A rotary drive motor, which is used to drive the rotation of the driving gear, and then drive the motion main shaft to rotate.

6. The smoke collecting hood according to any one of claims 3 to 5, characterized in that, In the unfolded state, the angle between the first smoke baffle and the plane where the bottom of the range hood cabinet is located is 90°-180°.

7. The smoke collecting hood according to claim 4 or 5, characterized in that, The motion main shaft and the first smoke baffle are connected by welding or adhesive.

8. The smoke collecting hood according to any one of claims 2 to 5, characterized in that, The second smoke baffle member includes: A second smoke baffle; A crank, which is fixedly connected to the second smoke baffle, and the bent part thereof is hinged to a first hinge bracket fixedly arranged on the inner wall of the cabinet; and An electric push rod, both ends of which are respectively hinged to a second hinge bracket fixedly arranged on the inner wall of the cabinet and the free end of the crank; Wherein, the electric push rod can drive the crank to rotate around the first hinge bracket, so as to drive the second smoke baffle to flip.

9. The smoke collecting hood according to claim 8, wherein In the unfolded state, the angle between the second smoke baffle and the plane where the bottom of the range hood cabinet is located is 90°-180°.

10. The smoke collecting hood according to claim 8, characterized in that, The crank and the second smoke baffle are connected by welding or adhesive.

11. The smoke collecting hood according to any one of claims 2 to 5, characterized in that, The smoke collecting hood further includes: A smoke sensor for sensing the oil fume content in the environment when the range hood is not started; and A controller for controlling the extension of the first smoke baffle assembly and the flipping open of the second smoke baffle assembly according to the smoke content signal received from the smoke sensor.

12. The smoke collecting hood according to claim 8, wherein, The area of the second smoke baffle is half of the area of the opening of the smoke collecting cavity.

13. A range hood, characterized in that, It includes a smoke collecting hood as described in any one of claims 1-12.

14. The range hood according to claim 13, wherein, It further includes a range hood body, a fan assembly and an oil mesh.

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