Flexible smoke guide and extractor hood

Abstract

The application relates to a flexible smoke guide device and an oil fume extractor, which can reduce the interface width of a smoke collecting cavity while ensuring a good oil fume suction effect, so as to meet the design requirement of the ultra-thin oil fume extractor. The flexible smoke guide device comprises a smoke baffle, which has an opening state for opening an upper smoke inlet of the smoke collecting cavity and a closing state for closing the smoke inlet; and a flexible plate, one end of the flexible plate is arranged at the upper part of the smoke baffle, and the other end of the flexible plate is arranged at the lower part of the smoke baffle; when the smoke baffle is in the opening state, the flexible plate extends from the upper part of the smoke baffle to the lower part of the smoke baffle by one-time bending, so as to form an L-shaped flow guide cover on the inner side of the smoke baffle; when the smoke baffle is in the closing state, the flexible plate extends from the upper part of the smoke baffle to the lower part of the smoke baffle by multi-time bending, so as to reduce the maximum distance between the flexible plate and the smoke baffle.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of range hood, in particular to a flexible smoke guide device and a range hood. BACKGROUND

[0002] With the improvement of people's living quality, the range hood has become one of the indispensable kitchen household appliances in modern families, which is usually installed above the kitchen stove, can suck the oil fume generated in the cooking process, thereby purifying the kitchen environment and improving the comfort of people when cooking.

[0003] In order to expand the smoke range, the existing range hood usually adopts a flip smoke baffle to realize the expansion of the smoke range, but the triangular smoke range formed by the smoke baffle is far away from the smoke source, the negative pressure is high, which leads to the unsatisfactory effect of sucking oil fume; in addition, there will be a gap between the top edge of the smoke baffle and the connecting part of the range hood body, which leads to the escape of part of the oil fume from the gap when the oil fume enters the inside of the smoke collecting cavity along the inner wall of the smoke baffle, causing the bottom of the fan box to accumulate oil stains all the year round, which not only reduces the effect of sucking oil fume, but also affects the user's experience.

[0004] Therefore, the applicant proposes a technical scheme of setting a flow guide cover on the inner wall of the smoke baffle, wherein the flow guide cover is composed of two plates which are integrally formed or mutually welded in L shape, and the ends of the two plates are fixedly connected with the smoke baffle respectively to form a three-dimensional space with a triangular cross section with the inner wall of the smoke baffle, which not only can move the negative pressure area below the smoke baffle downward to improve the effect of sucking oil fume, but also can change the flow path of the oil fume to reduce the escape of the oil fume from the gap between the smoke baffle and the body.

[0005] However, when the range hood is not working, in order to reduce the space occupation and improve the overall aesthetics, the smoke baffle is used to close the smoke inlet, and the L-shaped flow guide cover is stored in the cavity passage of the smoke collecting cavity, and in order to ensure a certain effect of sucking oil fume and preventing oil fume from escaping, the L-shaped flow guide cover must have a large enough size, which leads to the cavity passage of the smoke collecting cavity must also have a certain accommodation space to accommodate the L-shaped flow guide cover, which causes the depth of the cavity passage of the smoke collecting cavity cannot be small, that is, the width of the smoke collecting cavity under the side view is still wide, which cannot realize the ultra-thin design of the range hood. SUMMARY

[0006] In view of the fact that the cavity channel of the existing smoke collecting cavity must have a certain accommodation space to accommodate the L-shaped flow guide cover, the depth of the cavity channel of the smoke collecting cavity cannot be made small, that is, the width of the smoke collecting cavity in the side view is still wide, and the ultra-thin design of the range hood cannot be realized; the present application provides a flexible smoke guiding device and a range hood, which can reduce the interface width of the smoke collecting cavity while ensuring good oil fume suction effect, to meet the ultra-thin design requirement of the range hood.

[0007] In order to achieve the above-mentioned at least one advantage or other advantages and purposes of the present application, the present application provides a flexible smoke guiding device, comprising:

[0008] a smoke baffle having an open state for opening an upper smoke inlet of the smoke collecting cavity and a closed state for closing the smoke inlet; and

[0009] a flexible plate, one end of the flexible plate being arranged at the upper portion of the smoke baffle, and the other end of the flexible plate being arranged at the lower portion of the smoke baffle; when the smoke baffle is in the open state, the flexible plate extends from the upper portion of the smoke baffle to the lower portion of the smoke baffle by one bending to form an L-shaped flow guide cover on the inner side of the smoke baffle; when the smoke baffle is in the closed state, the flexible plate extends from the upper portion of the smoke baffle to the lower portion of the smoke baffle by multiple bendings to reduce the maximum distance between the flexible plate and the smoke baffle.

[0010] In some embodiments of the present application, the flexible plate is a rubber piece to switch between the stretched state and the gathered state.

[0011] In some embodiments of the present application, when the flexible plate is in the stretched state, the flexible plate has a first flow guide section connected with the lower portion of the smoke baffle and a second flow guide section connected with the upper portion of the smoke baffle; the first flow guide section extends transversely from the lower portion of the smoke baffle, and the second flow guide section extends longitudinally from the upper portion of the smoke baffle to the first flow guide section.

[0012] In some embodiments of the present application, the flexible plate is a rectangular plate or an L-shaped plate in the natural state.

[0013] In some embodiments of the present application, the flexible smoke guiding device further comprises a linkage assembly connected with the flexible plate, for switching the flexible plate from the gathered state to the stretched state.

[0014] In some embodiments of the present application, the linkage assembly comprises a plurality of connecting pieces arranged at intervals along the width direction of the smoke baffle, the connecting pieces being connected to the bending portions of the flexible plate in the stretched state.

[0015] In some embodiments of the present application, two of the connecting members are arranged at intervals within the smoke collecting cavity, and the two connecting members are respectively detachably connected to the left and right edges of the flexible plate.

[0016] In some embodiments of the present application, the connecting member is a fixed pull rod or a telescopic pull rod.

[0017] In some embodiments of the present application, the linkage assembly comprises a connecting member connected to the flexible plate and the smoke baffle at two ends; the connecting member is an electric telescopic rod, one end of the electric telescopic rod is fixedly connected to the smoke baffle, and the other end of the electric telescopic rod is detachably connected to the flexible plate.

[0018] In some embodiments of the present application, the flexible plate is detachably mounted to the smoke baffle.

[0019] In some embodiments of the present application, the flexible plate comprises a plate body and four first detachable members arranged at four corners of the plate body; the flexible smoke guiding device further comprises first matching members fixed to the smoke baffle and matched with the first detachable members, and the first detachable members are detachably connected to the first matching members.

[0020] In some embodiments of the present application, the first detachable member is a magnetic member fixed at a corner of the plate body; the first matching member is a magnetic attraction member magnetically attracted to the magnetic member; and four corners of the magnetic attraction member are raised to form clamping grooves accommodating the magnetic members.

[0021] According to another aspect of the present application, the present application further provides an extractor hood, comprising:

[0022] a fan box;

[0023] a smoke collecting cavity arranged below the fan box and provided with a smoke inlet; and

[0024] the flexible smoke guiding device described above, which is reversibly arranged in the smoke collecting cavity and used for opening or closing the smoke inlet.

[0025] In summary, when the smoke baffle is in the open state, the flexible plate extends from the upper part of the smoke baffle to the lower part of the smoke baffle by one-time bending, so as to form an L-shaped flow guide cover on the inner side of the smoke baffle, so that the negative pressure area formed below the smoke baffle is moved downward, improving the effect of extracting oil fume; when the smoke baffle is in the closed state, the flexible plate extends from the upper part of the smoke baffle to the lower part of the smoke baffle by multiple-time bending, so as to reduce the maximum distance between the flexible plate and the smoke baffle, so that the flexible plate can be accommodated in the smoke collecting cavity with an ultra-thin design.

[0026] In addition, the flexible plate of the present application can be detachably installed on the smoke baffle, so that the flexible plate can be detached for cleaning when cleaning is needed, which helps to improve the cleaning efficiency and effectively solves the problem of inconvenient cleaning. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 Fig. 2 shows a state diagram of the smoke baffle in the open state in the range hood according to the above embodiment of the present application;

[0028] Figure 2 Fig. 3 shows a state diagram of the smoke baffle in the closed state in the range hood according to the above embodiment of the present application;

[0029] Figure 3 Fig. 4 shows a sectional view of the range hood shown in Fig. 1; Figure 1 Fig. 5 shows a sectional view of the range hood shown in Fig. 2;

[0030] Figure 4 Fig. 6 shows a sectional view of the range hood shown in Fig. 3; Figure 2 Fig. 7 shows a sectional view of the range hood shown in Fig. 4;

[0031] Figure 5 Fig. 8 shows a first example of the flexible smoke guide device in the range hood according to the above embodiment of the present application, in which the flexible plate is in an extended state;

[0032] Figure 6 Fig. 9 shows a state diagram of the flexible smoke guide device according to the above first example of the present application, in which the flexible plate is in a gathered state;

[0033] Figure 7 Fig. 10 shows a second example of the flexible smoke guide device in the range hood according to the above embodiment of the present application, in which the flexible plate is in an extended state;

[0034] Figure 8 Fig. 11 shows a state diagram of the flexible smoke guide device according to the above second example of the present application, in which the flexible plate is in a gathered state;

[0035] Figure 9 Fig. 12 shows a third example of the flexible smoke guide device in the range hood according to the above embodiment of the present application, in which the flexible plate is in an extended state;

[0036] Figure 10 Fig. 13 shows a state diagram of the flexible smoke guide device according to the above third example of the present application, in which the flexible plate is in a gathered state.

[0037] Explanation of main element symbols:

[0038] 1. Flexible smoke guide device; 10. Smoke baffle; 20. Flexible plate; 201. First guide section; 202. Second guide section; 21. Plate body; 22. First detachable part; 221. Magnetic part; 222. First buckle; 23. Second detachable part; 230. Second buckle; 30. Linking assembly; 300. Connecting part; 31. Fixed pull rod; 32. Second matching part; 320. Second buckle; 33. Electric telescopic rod; 40. First matching part; 41. Magnetic part; 42. First buckle; 2. Smoke collection chamber; 3. Smoke inlet; 4. Fan box.

[0039] The above description of the main component symbols is combined with the accompanying drawings and specific embodiments to further illustrate the present invention in detail. DETAILED DESCRIPTION

[0040] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0041] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are 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 understood as limiting the present invention.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0043] In the present application, unless specifically defined otherwise and limited, the terms "mount", "connected", "connection", "fixed", and the like should be construed as being used in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0044] In the present application, unless specifically defined otherwise and limited, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be indirectly in contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be directly above or obliquely above the first feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be directly below or obliquely below the first feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0045] It should be noted that when an element is referred to as "fixed to" or "provided on" another element, it can be directly on another element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and are not the only embodiment.

[0046] In view of the existing range hood, in order to ensure a certain oil fume suction effect and prevent oil fume escape, the L-shaped flow guide cover must have a large enough size, which results in that the smoke collecting cavity must also have a certain accommodation space to accommodate the L-shaped flow guide cover, which causes the cavity passage depth of the smoke collecting cavity to be unable to be small, that is, the width of the smoke collecting cavity under the side view is still wide, and the ultra-thin design of the range hood cannot be realized. Therefore, the present application creatively provides a flexible smoke guide device and a range hood, which can reduce the interface width of the smoke collecting cavity while ensuring good oil fume suction effect, so as to meet the ultra-thin design requirement of the range hood.

[0047] Specifically, according to another aspect of the present application, as Figures 1 to 4As shown, one embodiment of the present application provides a range hood, which may include a fan housing 4, a smoke collection chamber 2 disposed below the fan housing 4 and having a smoke inlet 3, and a flexible smoke guide 1 reversibly disposed within the smoke collection chamber 2 and configured to open or close the smoke inlet 3. The flexible smoke guide 1 is capable of moving a negative pressure region downward when the smoke inlet 3 is opened to enhance the oil fume extraction effect. It is understood that the range hood of the present application may also include, but is not limited to, a water tank, a water collection box, and / or sensors to assist in the oil fume extraction function, which will not be further detailed herein.

[0048] More specifically, if Figures 1 to 4 As shown, the flexible smoke guide device 1 may include a smoke baffle 10 and a flexible plate 20. The smoke baffle 10 has an open state for opening the smoke inlet 3 and a closed state for closing the smoke inlet 3. The smoke baffle 10 is configured to be flippably disposed on the smoke collecting chamber 2 to switch between the open state and the closed state. One end of the flexible plate 20 is arranged at the upper part of the smoke damper 10, and the other end of the flexible plate 20 is arranged at the lower part of the smoke damper 10; when the smoke damper 10 is in the open state, the flexible plate 20 is bent once and extends from the upper part of the smoke damper 10 to the lower part of the smoke damper 10 to form an L-shaped air guide cover on the inner side of the smoke damper 10, so that the negative pressure area formed below the smoke damper 10 can be moved downward to improve the oil fume absorption effect; when the smoke damper 10 is in the closed state, the flexible plate 20 is bent multiple times and extends from the upper part of the smoke damper 10 to the lower part of the smoke damper 10 to reduce the maximum distance between the flexible plate 20 and the smoke damper 10, so that the flexible plate 20 can be accommodated in the ultra-thin designed smoke collecting chamber 2. It can be understood that the upper part of the smoke baffle 10 refers to the part of the smoke baffle 10 close to the fan box 4, and the lower part of the smoke baffle 10 refers to the part of the smoke baffle 10 away from the fan box 4; the inner side of the smoke baffle 10 refers to the side of the smoke baffle 10 facing the smoke collecting chamber 2.

[0049] Notably, the flexible plate 20 can be but is not limited to being implemented as a rubber piece so as to utilize the flexibility of the rubber material itself to ensure that the flexible plate 20 can be deformed to switch between the stretched state and the gathered state. In this way, when the smoke screen 10 is in the open state, the flexible plate 20 can be switched from the gathered state to the stretched state to stretch on the inner side of the smoke screen 10 to form an L-shaped flow guide cover; and when the smoke screen 10 is in the closed state, the flexible plate 20 can be switched from the stretched state to the gathered state to gather on the inner side of the smoke screen 10 to occupy a smaller space, facilitating being accommodated in the cavity passage of the ultra-thin smoke collecting cavity 2. It can be understood that the smoke collecting cavity 2 mentioned in the present application can be implemented as a wedge-shaped box body with upper wide and lower narrow sides, or can also be implemented as a rectangular box body with equal width from top to bottom. Preferably, the top width of the smoke collecting cavity 2 can be between 2 cm and 15 cm to meet the needs of ultra-thin design.

[0050] In addition, as Figure 3 shown, when the flexible plate 20 is in the stretched state, the flexible plate 20 has a first flow guide section 201 connected to the lower part of the smoke screen 10 and a second flow guide section 202 connected to the upper part of the smoke screen 10; the first flow guide section 201 extends transversely from the lower part of the smoke screen 10, for guiding the oil fume entering the smoke collecting cavity 2 at a lower position, so that the negative pressure area below the smoke screen 10 moves downward, ensuring better oil fume suction effect; the second flow guide section 202 extends longitudinally from the upper part of the smoke screen 10 to the first flow guide section 201, for guiding the oil fume entering the smoke collecting cavity 2 to flow into the fan box 4, avoiding accumulation at the upper area of the smoke screen 10, and helping to reduce the escape of oil fume.

[0051] Optionally, as Figure 3 shown, the intersection between the first flow guide section 201 and the second flow guide section 202 is located in the cavity passage of the smoke collecting cavity 2, avoiding the oil dirt flowing along the second flow guide section 202 from flowing out of the smoke collecting cavity 2, so as to be collected in the oil cup located at the lower part of the smoke collecting cavity 2.

[0052] Optionally, as Figure 3 shown, the first flow guide section 201 extends obliquely upward from the lower part of the smoke screen 10 towards the smoke collecting cavity 2, so as to guide the oil fume to flow more smoothly into the cavity passage of the smoke collecting cavity 2.

[0053] Optionally, as Figure 3As shown, the second guide section 202 extends obliquely downward from the upper portion of the smoke baffle 10 toward the smoke collecting chamber 2, such that the angle between the second guide section 202 and the first guide section 201 is less than 90°. This allows the oil smoke flowing along the first guide section 201 to separate from the L-shaped guide cover at the intersection between the first guide section 201 and the second guide section 202, thereby preventing the oil smoke from flowing along the second guide section 202 toward the upper portion of the smoke baffle 10, thereby helping to reduce the escape of oil smoke from the gap connecting the smoke baffle 10 and the smoke collecting chamber 2. It is understood that in other examples of the present application, the angle between the second guide section 202 and the first guide section 201 can be greater than or equal to 90°, and this application will not elaborate on this.

[0054] Alternatively, as Figure 3 As shown, the length of the first guide section 201 is greater than the length of the second guide section 202, so as to ensure that the flow path of the oil smoke is smooth and moves downward to the negative pressure area over a large range.

[0055] According to the above embodiments of the present application, Figure 1 and Figure 3 As shown, the flexible smoke guide device 1 may further include a linkage assembly 30 connected to the flexible plate 20, for switching the flexible plate 20 from the gathered state to the extended state. It is understood that when the smoke baffle 10 switches from the open state to the closed state, the flexible plate 20 can switch from the extended state to the gathered state under the pressure of the linkage assembly 30 or the smoke collecting chamber 2.

[0056] Optionally, the flexible plate 20 is a rectangular plate in its natural state, and the natural spacing between the ends of the flexible plate 20 is greater than the installation spacing between the ends of the flexible plate 20, so that an L-shaped air deflector is formed on the inner side of the smoke shield 10 under the tensile action of the linkage assembly 30. It is understood that the natural spacing between the ends mentioned in this application refers to the spacing between the ends of the flexible plate 20 in its natural state; and the installation spacing between the ends mentioned in this application refers to the spacing between the ends of the flexible plate 20 after it is installed on the smoke shield 10.

[0057] Alternatively, as Figure 3 As shown, the linkage assembly 30 includes a plurality of connectors 300 arranged at intervals along the width direction of the smoke shield 10, and the connectors 300 are connected to the bending portion of the flexible plate 20 in the extended state, that is, the connectors 300 are connected to the intersection between the first guide section 201 and the second guide section 202 on the flexible plate 20, so as to ensure that the flexible plate 20 bends from the intersection between the first guide section 201 and the second guide section 202 when in the extended state.

[0058] Preferably, the linkage assembly 30 can include two connectors 300 arranged at intervals, and the two connectors 300 are respectively connected to the left and right edges of the flexible plate 20, so as to ensure that the flexible plate 20 can be stretched out. It can be understood that in other examples of the present application, the linkage assembly 30 can also include only one connector 300, as long as the flexible plate 20 can be stretched to form an L-shaped flow guide cover on the inner side of the smoke screen 10, and the present application will not be repeated here.

[0059] It is worth noting that in other examples of the present application, the flexible plate 20 can also be an L-shaped plate in a natural state, so that the natural interval between the two ends of the flexible plate 20 can be equal to the installation interval between the two ends of the flexible plate 20. In this way, the flexible smoke guide device 1 of the present application can omit the linkage assembly 30, and the flexible plate 20 can be pressed by the cavity of the smoke collecting cavity 2 to be in a gathered state when the smoke screen 10 is in a closed state; and the flexible plate 20 can also automatically recover to an L-shaped plate to be in an extended state when the smoke screen 10 is in an open state. It can be understood that even if the flexible plate 20 is an L-shaped plate in a natural state, the linkage assembly 30 can be retained to assist the flexible plate 20 to better recover to an L-shaped plate.

[0060] In addition, since the flow guide cover is a heavy pollution area of oil fume and oil stains, and the second flow guide section 202 of the flexible plate 20 usually penetrates into the inside of the smoke collecting cavity 2, resulting in great difficulty for users or maintenance personnel to clean the flow guide cover, therefore, in order to facilitate cleaning of the flow guide cover, the flexible plate 20 of the present application is detachably mounted on the smoke screen 10, so that when the flexible plate 20 needs to be cleaned, the flexible plate 20 is detached and cleaned, which helps to improve the cleaning efficiency, thereby effectively solving the problem of inconvenient cleaning.

[0061] Exemplarily, as shown in Figure 5 and Figure 6 In the first example of the present application, the linkage assembly 30 includes two connectors 300 arranged inside the smoke collecting cavity 2 and connected to the flexible plate 20, so as to stretch the flexible plate 20 when the smoke screen 10 is switched from a closed state to an open state, so that the flexible plate 20 is stretched out to form an L-shaped flow guide cover below the smoke screen 10; and push the flexible plate 20 when the smoke screen 10 is switched from the open state to the closed state, so that the flexible plate 20 is gathered to be accommodated in the smoke collecting cavity 2.

[0062] Optionally, as shown in Figure 5 and Figure 6As shown, the connecting member 300 is implemented as a fixed pull rod 31 arranged in the smoke collecting cavity 2, one end of the fixed pull rod 31 is fixedly connected to the smoke collecting cavity 2, and the other end of the fixed pull rod 31 is detachably connected to the flexible plate 20, so as to realize stretching or pushing the flexible plate 20, while ensuring that the flexible plate 20 can be detached from the fixed pull rod 31 for cleaning, while switching between the stretched state and the gathered state.

[0063] Optionally, as shown in Figure 5 and Figure 6 , one end of the fixed pull rod 31 is fixedly connected to the back plate of the smoke collecting cavity 2; the interval between the two fixed pull rods 31 on the back plate of the smoke collecting cavity 2 is greater than or equal to the width of the flexible plate 20, and the two fixed pull rods 31 are respectively connected to the left and right edges of the flexible plate 20, so as to ensure that the flexible plate 20 can be completely unfolded in the stretched state. It can be understood that one end of the fixed pull rod 31 can also be fixedly connected to the side plate of the smoke collecting cavity 2, so that the interval between the two fixed pull rods 31 on the smoke collecting cavity 2 is greater than the width of the flexible plate 20, so as to ensure that the flexible plate 20 can be completely unfolded.

[0064] Optionally, as shown in Figure 5 and Figure 6 , the flexible plate 20 includes a plate body 21 providing the first flow guide section 201 and the second flow guide section 202, and four first detachable members 22 arranged at the four corners of the plate body 21; the flexible smoke guide device 1 further includes a first matching member 40 fixedly arranged on the smoke blocking plate 10 and matched with the first detachable member 22, and the first detachable member 22 is detachably connected to the first matching member 40, so as to detachably install the flexible plate 20 on the smoke blocking plate 10.

[0065] Optionally, as shown in Figure 5 and Figure 6 , the first detachable member 22 is implemented as a magnetic member 221 fixedly arranged at the corner of the plate body 21; the first matching member 40 is implemented as a magnetic attraction member 41 magnetically attracted to the magnetic member 221, so that the first detachable member 22 and the first matching member 40 constitute a magnetic attraction type detachable member structure, facilitating disassembly and assembly. It can be understood that the magnetic member 221 can be but not limited to a magnet; the magnetic attraction member 41 can be but not limited to an iron sheet or an iron plate; in addition, in other examples of the present application, the magnetic member 221 and the magnetic attraction member 41 can be interchanged, and the present application will not be repeated here.

[0066] Optionally, as shown in Figure 5 and Figure 6As shown, the magnetic member 41 is provided with four corners, which are raised to form a clamping groove for accommodating the magnetic member 221, so that the magnetic fixing and clamping fixing can be realized at the same time, which helps to enhance the connection stability between the flexible plate 20 and the smoke screen 10 while ensuring the detachable connection.

[0067] Optionally, as shown in Figure 5 and Figure 6 , the flexible plate 20 further comprises a second detachable member 23 arranged at the intersection between the first flow guide segment 201 and the second flow guide segment 202 of the plate body 21; the linkage assembly 30 further comprises a second matching member 32 fixedly arranged at the end of the fixed pull rod 31 and matched with the second detachable member 23, and the second detachable member 23 is detachably connected to the second matching member 32, so as to detachably connect the fixed pull rod 31 to the flexible plate 20.

[0068] Optionally, as shown in Figure 5 and Figure 6 , the second detachable member 23 is implemented as a second buckle ring 230 fixedly connected to the plate body 21; the second matching member 32 is implemented as a second clasp 320 integrally connected to the fixed pull rod 31 and buckled to the second buckle ring 230, so that the fixed pull rod 31 has a clasp end matched with the second buckle ring 230, thereby realizing the detachable connection between the fixed pull rod 31 and the flexible plate 20.

[0069] It is worth noting that in other examples of the present application, the fixed pull rod 31 can also be fixedly connected to the flexible plate 20, and the fixed pull rod 31 is detachably mounted to the smoke collecting cavity 2, so that the flexible plate 20 is detached from the smoke collecting cavity 2 together with the fixed pull rod 31, which can still reduce the cleaning difficulty of the flexible plate 20. In addition, the second detachable member 23 and the second matching member 32 can also be implemented as magnetic members and magnetic members that are magnetically attracted to each other.

[0070] Exemplarily, as shown in Figure 7 and Figure 8 , in the second example of the present application, the first detachable member 22 can be buckled to the first matching member 40, which can still realize the detachable mounting of the flexible plate 20 to the smoke screen 10.

[0071] Optionally, as shown in Figure 7 and Figure 8 , the first detachable member 22 is implemented as a first buckle ring 222 fixedly arranged at the corner of the plate body 21; the first matching member 40 comprises a magnetic member 41 fixedly arranged on the smoke screen 10 and a first clasp 42 fixedly arranged on the magnetic member 41 and buckled to the first buckle ring 222.

[0072] It is worth noting that in the above examples of the present application, the connecting member 300 is implemented as a fixed pull rod 31 without power source. Of course, in other examples of the present application, the connecting member 300 can also be implemented as a telescopic pull rod without power source arranged inside the smoke collecting cavity 2; or the connecting member 300 can also be implemented as a telescopic rod with power source arranged inside the smoke collecting cavity 2, such as a linear motor, a pneumatic cylinder, a hydraulic cylinder or an electric telescopic rod, etc.

[0073] In addition, in other examples of the present application, the linkage assembly 30 can also be arranged in the space between the flexible plate 20 and the smoke baffle 10, and still enable the flexible plate 20 to switch between the stretched state and the gathered state.

[0074] Exemplarily, as shown in Figure 9 and Figure 10 , in the third example of the present application, the linkage assembly 30 includes a connecting member 300 connected to the flexible plate 20 and the smoke baffle 10 at two ends, respectively, to be located inside the space surrounded by the flexible plate 20 and the smoke baffle 10, which can effectively avoid contacting the cooking fume and prevent the oil stain from polluting the linkage assembly 30.

[0075] Optionally, as shown in Figure 9 and Figure 10 , the connecting member 300 is implemented as an electric telescopic rod 33, one end of which is fixedly connected to the smoke baffle 10, and the other end of which is detachably connected to the flexible plate 20. In this way, when the smoke baffle 10 is switched from the closed state to the open state, the electric telescopic rod 33 is extended to push the flexible plate 20 from the gathered state to the stretched state; and when the smoke baffle 10 is switched from the open state to the closed state, the electric telescopic rod 33 is retracted to pull the flexible plate 20 from the stretched state to the gathered state. It can be understood that in other examples of the present application, the electric telescopic rod 33 can also only be automatically extended, and cannot be automatically retracted; at this time, when the smoke baffle 10 is switched from the open state to the closed state, the flexible plate 20 can be switched from the stretched state to the gathered state under the extrusion of the back plate of the smoke collecting cavity 2, and drive the electric telescopic rod 33 to be passively retracted, which will not be described herein again.

[0076] Optionally, the interval between the two electric telescopic rods 33 on the smoke baffle 10 is greater than or equal to the width of the flexible plate 20, and the two electric telescopic rods 33 are detachably connected to the left and right edges of the flexible plate 20, respectively, so as to ensure that the flexible plate 20 can be completely unfolded in the stretched state.

[0077] It is worth noting that, as shown in Figure 9 and Figure 10 , in the fourth example of the present application, the linkage assembly 30 includes a connecting member 300 connected to the flexible plate 20 and the smoke baffle 10 at two ends, respectively, to be located inside the space surrounded by the flexible plate 20 and the smoke baffle 10, which can effectively avoid contacting the cooking fume and prevent the oil stain from polluting the linkage assembly 30.As shown, in the third example of the present application, the electric telescopic rod 33 and the flexible plate 20 can also be snap-connected through the second detachable part 23 and the second matching part 32, and can also be hook-connected, which will not be described herein again.

[0078] The technical features of the above examples can be combined in any manner. In order to make the description simple, all possible combinations of the technical features in the above examples are not described, however, as long as the combinations of the technical features do not exist contradictions, they should be considered as the scope of the present disclosure.

[0079] The above examples only express several embodiments of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the patent. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of the present application.

Claims

1. A flexible smoke guide, characterized in that The flexible smoke guide device comprises: a smoke baffle having an open state for opening the smoke inlet of the smoke collection cavity and a closed state for closing the smoke inlet; and a flexible plate, one end of which is arranged at the upper portion of the smoke baffle, and the other end of which is arranged at the lower portion of the smoke baffle; when the smoke baffle is in the open state, the flexible plate extends from the upper portion of the smoke baffle to the lower portion of the smoke baffle by one bending to form an L-shaped fairing on the inner side of the smoke baffle; when the smoke baffle is in the closed state, the flexible plate extends from the upper portion of the smoke baffle to the lower portion of the smoke baffle by multiple bendings to reduce the maximum distance between the flexible plate and the smoke baffle. The flexible plate is a rubber piece to switch between an extended state and a gathered state.

2. The flexible smoke guide according to claim 1, wherein When the flexible plate is in the extended state, the flexible plate has a first fairing connected to the lower portion of the smoke baffle and a second fairing connected to the upper portion of the smoke baffle; the first fairing extends transversely from the lower portion of the smoke baffle, and the second fairing extends longitudinally from the upper portion of the smoke baffle to the first fairing.

3. A flexible smoke guide according to claim 2, characterised in that The flexible plate naturally presents as a rectangular plate or an L-shaped plate.

4. The flexible smoke guide of claim 1, wherein, The flexible smoke guide device further comprises a linkage assembly connected to the flexible plate for switching the flexible plate from the gathered state to the extended state.

5. A flexible smoke guiding device according to any one of claims 1 to 4, characterized in that The linkage assembly comprises a plurality of connectors arranged along the width direction of the smoke baffle, the connectors being connected to the bending portions of the flexible plate in the extended state.

6. A flexible smoke guiding device according to claim 5, characterized in that Two of the connectors are arranged inside the smoke collection cavity, and two of the connectors are respectively detachably connected to the left and right edges of the flexible plate.

7. A flexible smoke guide according to claim 6, characterised in that The connectors are fixed pull rods or telescopic pull rods.

8. A flexible smoke guide according to claim 7, characterised in that The linkage assembly comprises connectors respectively connected to the flexible plate and the smoke baffle at two ends; the connectors are electric telescopic rods, one end of the electric telescopic rod being fixedly connected to the smoke baffle, and the other end of the electric telescopic rod being detachably connected to the flexible plate.

9. The flexible smoke guide of claim 5, wherein, The flexible plate is detachably mounted on the smoke baffle.

10. The flexible smoke guide of any one of claims 1 to 4, wherein, The flexible plate comprises a plate body and four first detachable members arranged at the four corners of the plate body; the flexible smoke guide device further comprises first matching members fixed to the smoke baffle and matched with the first detachable members, the first detachable members being detachably connected to the first matching members.

11. The flexible smoke guide of claim 10, wherein, The first detachable members are magnetic members fixed at the corners of the plate body; the first matching members are magnetic attraction members magnetically attracted to the magnetic members; the four corners of the magnetic attraction members are raised to form clamping grooves accommodating the magnetic members.

12. The flexible smoke guide of claim 11, wherein, The flexible smoke guide device comprises:

13. A range hood characterized by a fan box; a smoke collection cavity arranged below the fan box and having a smoke inlet; and any one of claims 1 to 12, the flexible smoke guide device being reversibly arranged in the smoke collection cavity for opening or closing the smoke inlet. ​

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