Opening and closing structure of smoke collecting plate and range hood

Abstract

The present invention provides an opening and closing structure for a smoke collecting plate and a range hood, belonging to the technical field of kitchen and bathroom appliances. The opening and closing structure for the smoke collecting plate is used for being assembled at the smoke collecting plate and the outer shell of the range hood. The opening and closing structure includes an opening and closing assembly and a positioning member. The opening and closing assembly is fixedly installed at the smoke collecting plate, is configured with a rotatable connecting rod, and is also configured to select connecting rods with different lengths or adjust different lengths of the connecting rod, so as to realize multiple different opening and closing angles of the smoke collecting plate. The positioning member is formed at a position corresponding to the opening and closing assembly in the outer shell and is used for inserting and supporting the connecting rod to form a stable support structure with the connecting rod. The present invention realizes multiple different opening and closing angles of the smoke collecting plate through the opening and closing assembly, meeting and adapting to the use scenarios of oil fume at different concentrations. The cooperation between the connecting rod and the positioning member makes the opening and closing structure fixed and reliable and not affected by oil stains.

Description

Technical Field

[0001] The present invention relates to the field of kitchen and bathroom appliances, and particularly to an opening and closing structure of a smoke collecting plate and a range hood. Background Art

[0002] In order to increase the overall aesthetics of the range hood and the adaptability to the cabinet, the side suction range hood generally adopts a movable smoke collecting plate structure to realize the suction and exhaust of oil fumes by the range hood. When using the range hood, the smoke collecting plate is opened to increase the smoke collecting range to quickly suck and exhaust the oil fumes. When the range hood is turned off, the smoke collecting plate is closed, which ensures the flatness and aesthetics of the overall appearance of the range hood, and at the same time facilitates the user to clean the surface of the smoke collecting plate.

[0003] The smoke collecting plate usually has two opening and closing structures: electric opening and closing and manual opening and closing. The following takes the manual opening and closing as an example for illustration: The structure of the manual opening and closing of the smoke collecting plate mostly adopts an automatic hovering mechanism. The automatic hovering mechanism generally consists of a rotating shaft, a fixed bracket, a rotating arm and an elastic washer. The principle is to adjust the pre-tightening force by adjusting the tightness between the elastic washer of the rotating shaft and the rotating arm, so that the smoke collecting plate of the range hood can freely stop and maintain this angle at any angle within the stroke angle range.

[0004] During the long-term use of the range hood, oil stains will enter the inside of the opening and closing structure, and the friction force between the elastic washer and the rotating arm will decrease. At the same time, the user's repeated opening and closing of the smoke collecting plate will cause the opening and closing structure to be worn and the pre-tightening force to decrease. There is a large suction force at the air inlet of the range hood, which will also generate a certain pulling force on the smoke collecting plate, accelerating the shaking of the smoke collecting plate and the wear of the structure. Over time, when the friction force of the opening and closing mechanism is less than the self-gravity of the smoke collecting plate, the effect of automatic hovering weakens or free hovering cannot be achieved at all, resulting in the smoke collecting plate unable to be fixed at the preset angle, and the smoke collecting effect of the smoke collecting plate becomes poor, directly affecting the oil fume suction and exhaust capacity of the range hood. Summary of the Invention

[0005] The purpose of the present invention is to provide an opening and closing structure of a smoke collecting plate, which can solve the problems of weakening and failure of the hovering effect of the smoke collecting plate of the range hood in the prior art.

[0006] The purpose of the present invention is also to provide a range hood with the above-mentioned opening and closing structure of the smoke collecting plate.

[0007] To achieve the purpose of the present invention, the present invention adopts the following technical solutions:

[0008] According to one aspect of the present invention, there is provided an opening and closing structure of a smoke collecting plate, which is used for being assembled at the smoke collecting plate and the outer shell of a range hood. The opening and closing structure includes:

[0009] an opening and closing assembly, fixedly mounted on the cigarette collecting plate, provided with a rotatable connecting rod, and further configured to select connecting rods of different lengths or adjust the connecting rods of different lengths to achieve a plurality of different opening and closing angles of the cigarette collecting plate; and

[0010] A positioning member is formed in the housing at a position corresponding to the opening and closing assembly and is used to insert and socket the connecting rod to form a stable supporting structure with the connecting rod.

[0011] According to one embodiment of the present invention, the opening and closing assembly comprises:

[0012] A fixing bracket, used as a mounting base;

[0013] a rotating shaft, supported at the fixed bracket and serving as a rotating shaft; and

[0014] A plurality of connecting rods are movably mounted on the rotating shaft, the plurality of connecting rods have different lengths, and each connecting rod is used to support the smoke collecting plate;

[0015] Wherein, by opening connecting rods of different lengths, a plurality of different opening and closing angles of the smoke collecting plate can be achieved.

[0016] According to an embodiment of the present invention, the plurality of connecting rods are configured to be foldable at the fixing bracket.

[0017] According to one embodiment of the present invention, the opening and closing assembly also includes a limit spring, which is arranged at the rotating shaft, one end of which abuts against the fixed bracket, and the other end abuts against the surface of the longest connecting rod among the multiple connecting rods, so that the longest connecting rod can be automatically retracted into the fixed bracket, and ensure that the connecting rod will not produce relative movement and shaking in the closed state.

[0018] According to one embodiment of the present invention, the opening and closing assembly comprises:

[0019] A fixed bracket, used as a mounting base, with sliding slots correspondingly provided on both sides of the fixed bracket;

[0020] A rotating shaft, used as a rotating shaft, supported at the sliding slots on both sides and movable along the sliding slots on both sides; and

[0021] A connecting rod, movably mounted on the rotating shaft, and used for supporting the smoke collecting plate;

[0022] The rotating shaft moves in the sliding slot to drive the connecting rod to move, thereby achieving different lengths of the connecting rod and realizing a plurality of different opening and closing angles of the cigarette collecting plate.

[0023] According to one embodiment of the present invention, the sliding slot on each side includes circular slots and linear slots arranged alternately, the rotating shaft includes a large shaft section and a small shaft section, the large shaft section and the small shaft section correspond to and match the circular slot and the linear slot, the opening and closing assembly also includes a compression spring, the compression spring is located on the outside of the fixed bracket and is installed at the small shaft section in the rotating shaft, by pressing the compression spring, the small shaft section moves along the circular slot and the linear slot, by releasing the compression spring, the large shaft section cooperates with the circular slot, so that the rotating shaft is fixed.

[0024] According to one embodiment of the present invention, the opening and closing assembly also includes a limit spring, which is arranged at the rotating shaft and located in the fixed bracket, one end of which abuts against the fixed bracket, and the other end abuts against the surface of the connecting rod, so that the connecting rod can be automatically retracted into the fixed bracket and ensure that the connecting rod does not produce relative movement and shaking in the closed state.

[0025] According to one embodiment of the present invention, the positioning member is a grille, and there are multiple grilles that are vertically stacked to form grilles of different heights. The same connecting rod is used to match different grilles among the multiple grilles to achieve multiple different opening and closing angles of the smoke collecting plate.

[0026] According to another aspect of the present invention, a range hood is provided, comprising: the above-mentioned opening and closing structure of the smoke collecting plate and the smoke collecting plate.

[0027] According to an embodiment of the present invention, a notch is provided at the smoke collecting plate, and the notch is communicated with the air inlet of the range hood.

[0028] According to one embodiment of the present invention, a buckle is provided at the notch.

[0029] An embodiment of the present invention has the following advantages or beneficial effects:

[0030] The opening and closing structure of the smoke collecting plate of the present invention comprises an opening and closing assembly installed at the smoke collecting plate and a positioning member formed in the housing. The opening and closing assembly is provided with a rotatable connecting rod, and is also configured to select connecting rods of different lengths or adjust the different lengths of the connecting rods, thereby achieving multiple opening and closing angles of the smoke collecting plate, satisfying and adapting to the use scenarios of oil smoke under different concentrations. The connecting rod cooperates with the positioning member to realize a stable supporting structure, so that the opening and closing structure is fixed and reliable and is not affected by oil stains, solving the problem that the automatic hovering effect is weakened or free hovering cannot be achieved in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The above and other features and advantages of the present invention will become more apparent by describing its exemplary embodiments in detail with reference to the accompanying drawings.

[0032] Figure 1 is a schematic perspective view of a range hood shown according to an exemplary embodiment;

[0033] Figure 2 is Figure 1 a schematic perspective view of the smoke collecting plate of a range hood when it is opened;

[0034] Figure 3 is Figure 2 a schematic perspective view of a corner of the smoke collecting plate of a range hood when the side plate is removed and the smoke collecting plate is opened at one corner;

[0035] Figure 4 is Figure 2 a schematic perspective view of a corner of the smoke collecting plate of a range hood when the side plate is removed and the smoke collecting plate is opened at the other corner;

[0036] Figure 5 is Figure 1 a schematic perspective view of a range hood when the smoke collecting plate is removed;

[0037] Figure 6 is Figure 1 a schematic perspective view of the back of the smoke collecting plate of a range hood;

[0038] Figure 7 A schematic exploded view of the opening and closing structure shown according to an exemplary embodiment;

[0039] Figure 8 Figure 7 A schematic perspective view of the opening state of the opening and closing structure shown;

[0040] Figure 9 Figure 7 A schematic perspective view of the closing state of the opening and closing structure shown;

[0041] Figure 10 A schematic perspective view of the closing state of the opening and closing structure shown according to another exemplary embodiment;

[0042] Figure 11 Figure 10 A schematic exploded view of the opening and closing structure shown;

[0043] Figure 12 Figure 10 A schematic perspective view of the opening state of the opening and closing structure shown.

[0044] Among them, the reference numerals are explained as follows:

[0045] I Range hood,

[0046] An opening and closing structure

[0047] 1. Air inlet

[0048] 2. Outer shell, 21 left side plate, 22 right side plate, 211 left grille, 212 left buckle seat, 213 left mounting groove, 221 right grille, 222 right buckle seat, 223 right mounting groove

[0049] 3. Box body

[0050] 4. Smoke collecting plate, 41 opening and closing assembly, 42 buckle, 43 handle, 44 hinge, 45 notch

[0051] 411 Fixed bracket, 412 Rotating shaft, 413 First connecting rod, 4131 Groove, 4132 Protrusion, 414 Second connecting rod, 415 Limiting spring

[0052] 421 Fixed bracket, 4211 Circular chute, 4212 Linear chute, 422 Rotating shaft, 4221 Large shaft section, 4222 Small shaft section, 423 Connecting rod, 424 Compression spring, 425 Limiting spring

[0053] 5. Bottom panel

[0054] 6. Oil cup

[0055] 7. Air outlet seat Detailed implementation manners

[0056] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in various forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. Like reference numerals in the figures denote like or similar structures, and thus their detailed description will be omitted.

[0057] The terms "a", "an", "the", and "said" are used to denote the presence of one or more elements / components / etc.; the terms "comprising" and "having" are used to denote an open inclusion meaning and mean that there may be additional elements / components / etc. in addition to the listed elements / components / etc.

[0058] As Figures 1 - 12 shown Figure 1 is a schematic perspective view of a range hood shown according to an exemplary embodiment. Figure 2 is Figure 1 a schematic perspective view of the smoke collecting plate of a range hood shown when it is opened. Figure 3 is Figure 2Schematic perspective view of a range hood with one corner of the smoke collecting plate opened when the side plate is removed. Figure 4 is Figure 2 Schematic perspective view of a range hood with another corner of the smoke collecting plate opened when the side plate is removed. Figure 5 is Figure 1 Schematic perspective view of a range hood when the smoke collecting plate is removed. Figure 6 is Figure 1 Schematic perspective view of the back side of the smoke collecting plate of a range hood. Figure 7 Schematic exploded view of the opening and closing structure shown according to an exemplary embodiment. Figure 8 Figure 7 Schematic perspective view of the opening state of the opening and closing structure shown. Figure 9 Figure 7 Schematic perspective view of the closed state of the opening and closing structure shown. Figure 10 Schematic perspective view of the closed state of the opening and closing structure shown according to another exemplary embodiment. Figure 11 Figure 10 Schematic exploded view of the opening and closing structure shown. Figure 12 Figure 10 Schematic perspective view of the opening state of the opening and closing structure shown.

[0059] As Figure 1 shown, reference may also be made to Figure 2 , the range hood I in this embodiment generally includes a housing 2, a box body 3 and a smoke collecting plate 4. Among them, a smoke collecting plate 4 that can be opened and closed is provided on the upper side of the housing 2, and the smoke collecting plate 4 is connected to the housing 2 through a hinge 44. A lower panel 5 and an oil cup 6 are provided on the lower side of the housing 2. An air inlet 1 is provided at the rear side of the smoke collecting plate 4. An air outlet seat 7 matching the box body 3 is provided at the box body 3. When the smoke collecting plate 4 is opened, the outwardly opened smoke collecting plate 4 has a smoke collecting effect, and the cooking fumes rise and flow through the above-mentioned air inlet 1 and enter the range hood air duct.

[0060] As Figure 3 shown, reference may also be made to Figures 4 - 12 , the opening and closing structure A of the smoke collecting plate 4 in the embodiment of the present invention is used to be assembled at the smoke collecting plate 4 and the housing 2 of the range hood I. The opening and closing structure A includes: an opening and closing assembly 41 and a positioning member. The opening and closing assembly 41 is fixedly installed at the smoke collecting plate 4, configured with a rotatable connecting rod, and is also configured to select connecting rods with different lengths (see Figures 7 - 9 ) or adjust the different lengths of the connecting rod 423 (see Figures 10 - 12 ) to achieve multiple different opening and closing angles of the smoke collecting plate 4. The positioning member is formed at a position in the housing 2 corresponding to the opening and closing assembly 41 for inserting and supporting the connecting rod 423 to form a stable support structure with the connecting rod 423.

[0061] More specifically, in this embodiment, asFigure 3 As shown, the number of the opening and closing structures A is two groups, which are correspondingly installed on the left side and the right side of the smoke collecting plate 4.

[0062] More specifically, in this embodiment, as Figure 3 shown, the opening and closing structure A is arranged at a position above the smoke collecting plate 4 and close to the hinge 44 of the smoke collecting plate 4, so that a larger opening and closing angle of the smoke collecting plate 4 can be realized with a smaller size of the opening and closing structure A.

[0063] As Figure 3 shown, the opening and closing structure A of the smoke collecting plate 4 of the present invention includes an opening and closing assembly 41 installed at the smoke collecting plate 4 and a positioning member formed in the housing 2. The opening and closing assembly 41 is configured with a rotatable connecting rod, and is also configured to select connecting rods with different lengths (see Figures 7 - 9 ) or adjust different lengths of the connecting rod (see Figures 10 - 12 ), so as to realize multiple different opening and closing angles of the smoke collecting plate 4, and meet and adapt to the use scenarios of oil fume under different concentrations. See Figure 7 , and also see Figure 10 . The connecting rod cooperates with the positioning member to realize a stable support structure, so that the opening and closing structure A is fixed and reliable and not affected by oil stains, and solves the problem that the effect of automatic hovering in the prior art is weakened or free hovering cannot be realized at all.

[0064] In a preferred embodiment of the present invention, as Figure 7 shown, and also see Figures 8 - 9 , the opening and closing assembly 41 includes: a fixed bracket 411, a rotating shaft 412 and a plurality of connecting rods. The fixed bracket 411 is used as an installation base. The rotating shaft 412 is supported at the fixed bracket 411 and used as the rotating shaft 412. The plurality of connecting rods are movably installed on the rotating shaft 412, and the lengths of the plurality of connecting rods are different, and each connecting rod is used to support the smoke collecting plate 4. Among them, by opening the connecting rods with different lengths, multiple different opening and closing angles of the smoke collecting plate 4 can be realized.

[0065] Specifically, when implemented, as Figure 7 shown, and also see Figures 8 - 9 , in this embodiment, the fixed bracket 411411 is fixed at the back plate of the smoke collecting plate 4. The connecting rod includes a first connecting rod 413 and a second connecting rod 414. The first connecting rod 413 and the second connecting rod 414 are both connected to the rotating shaft 412, and the lengths of the first connecting rod 413 and the second connecting rod 414 are different. The first connecting rod 413 and the second connecting rod 414 can be respectively turned over, and different opening and closing angles of the smoke collecting plate 4 can be realized through the connecting rods with different lengths.

[0066] In a preferred embodiment of the present invention, as Figure 1As shown in the figure, multiple linkages are configured to be foldable at the fixed bracket 411. In a specific implementation, a groove 4131 can be provided on the first linkage 413, and a protrusion 132 mating with the groove 4131 can be provided on the second linkage 414. After rotating the first linkage 413 around the rotating shaft 412, press the first linkage 413 to align the groove 4131 of the first linkage 413 with the protrusion 132 of the second linkage 414, and the linkages 413 and 417 can be folded together. In other embodiments, conversely, a protrusion 132 can be provided on the first linkage 413, and a groove 4131 can be provided on the second linkage 414.

[0067] In a preferred embodiment of the present invention, as Figure 1 shown, the opening and closing assembly 41 further includes a limiting spring 415 provided at the rotating shaft 412. The limiting spring 415 can be a torsion spring. One end of the limiting spring 415 abuts against the fixed bracket 411, and the other end abuts against the surface of the longest linkage among the multiple linkages. So that the longest linkage can automatically retract into the fixed bracket 411, and ensure that there is no relative movement and shaking of the linkage in the closed state. In this embodiment, the limiting spring 415 abuts against the upper surface of the second linkage 414. The second linkage 414 will be affected by the elastic force of the spring in the open state, and the second linkage 414 will automatically retract into the fixed bracket 411 while the spring can ensure that there is no relative movement and shaking of the second linkage 414 when it is closed.

[0068] In a preferred embodiment of the present invention, as Figure 5 shown, the positioning member is a grille. The number of grilles is multiple and they are arranged vertically in an overlapping manner to form grilles of different heights. By matching the same linkage with different grilles among the multiple grilles, different opening and closing angles of the smoke collecting plate 4 can be realized.

[0069] In a specific implementation, as Figure 5 shown, an installation groove for accommodating the opening and closing assembly 41 can be provided on the side plate of the housing 2 of the range hood I. When the smoke collecting plate 4 is closed, the opening and closing assembly 41 is hidden in the installation groove. Multiple grilles can be provided in the installation groove. When the same linkage cooperates with different grilles, different opening and closing angles of the smoke collecting plate 4 can also be realized.

[0070] In a specific implementation, as Figure 5 shown, a left installation groove 213 and a right installation groove 223 are correspondingly provided at the left side plate 21 and the right side plate 22 of the range hood I. A left grille 211 and a right grille 212 are correspondingly provided in the left installation groove 213 and the right installation groove 223. Both the left grille 211 and the right grille 212 include multiple levels of grilles of different heights. Referring to Figure 1 , when the smoke collecting plate 4 is closed, the opening and closing assembly 41 retracts into the installation groove. When the second linkage 414 cooperates with grilles of different heights, different opening and closing angles of the smoke collecting plate 4 can be realized. As Figure 7As shown in the figure, in this embodiment, the opening and closing assembly 41 includes first connecting rods 413 and second connecting rods 414 of two lengths. As Figure 3 shown, grilles of different heights are provided on the side plates of the housing 2. As Figure 3 shown, each connecting rod is installed and matched with a different grille, realizing multiple different opening and closing angles of the fume collecting plate 4, meeting and adapting to the fume use scenarios at different concentrations, and the operation is simple and reliable. Due to the solution of the present invention, it is not affected by oil stains, so the problems of the weakening and failure of the hovering effect of the fume collecting plate 4 in the prior art are solved.

[0071] In another preferred embodiment of the present invention, as Figure 10 shown, it can also be seen in Figures 11 - 12 that the opening and closing assembly 41 in this embodiment includes: a fixed bracket 421, a rotating shaft 422 and a connecting rod 423. The fixed bracket 421 is used as an installation base, and sliding card slots are correspondingly provided on both sides of the fixed bracket 421. The rotating shaft 422 is used as a rotating shaft, supported at the sliding card slots on both sides and can move along the sliding card slots on both sides. The connecting rod 423 is movably installed on the rotating shaft 422 and is used to support the fume collecting plate 4. Among them, by moving the rotating shaft 422 in the sliding card slots, the connecting rod 423 is driven to move, realizing different lengths of the connecting rod 423 and realizing multiple different opening and closing angles of the fume collecting plate 4.

[0072] In a preferred embodiment of the present invention, as Figure 10 shown, it can also be seen in Figures 11 - 12 that each side's sliding card slot includes multiple groups of alternately arranged circular sliding grooves 4211 and linear sliding grooves 4212. The rotating shaft 422 includes a large shaft section 4221 and a small shaft section 4222. The large shaft section 4221 and the small shaft section 4222 correspond to and match the circular sliding grooves 4211 and the linear sliding grooves 4212. The opening and closing assembly 41 further includes a compression spring 424. The compression spring 424 is located outside the fixed bracket 421 and is installed at the small shaft section 4222 of the rotating shaft 422. As Figure 12 shown, by pressing the compression spring 424, the rotating shaft 422 can be moved to one side, so that the small shaft section 4222 moves downward or upward along the circular sliding grooves 4211 and the linear sliding grooves 4212; when it slides to the position of the circular sliding groove 42114211, by releasing the compression spring 424, the large shaft section 4221 cooperates with the circular sliding groove 4211 to fix the rotating shaft 422. Through the up and down sliding of the rotating shaft 422, the movement and elongation of the connecting rod 423 are realized. The connecting rod 423 can achieve a variety of different length dimensions, so as to realize different opening and closing angles of the fume collecting plate 4.

[0073] In a preferred embodiment of the present invention, as Figure 10 shown, it can also be seen in Figure 12, the opening and closing assembly 41 further includes a limiting spring 425, which is arranged at the rotating shaft 422 and located inside the fixed bracket 421. The limiting spring 425 can be a torsion spring. One end of the limiting spring 425 abuts against the fixed bracket 421, and the other end of the limiting spring 425 abuts against the surface of the connecting rod 423. The connecting rod 423 will be subjected to the elastic force of the limiting spring 425 in the open state, and the connecting rod 423 automatically retracts into the fixed bracket 421. At the same time, the spring can ensure that the connecting rod 423 will not have relative movement and shaking in the closed state.

[0074] In specific implementation, the limiting spring 425 can be arranged on one side of the rotating shaft 422 of the opening and closing assembly 41, and the limiting springs 425 can also be correspondingly arranged on both sides of the opening and closing assembly 41.

[0075] In a preferred embodiment of the present invention, as Figure 3 shown, the positioning member is a grille. The number of grilles is multiple and they are arranged vertically in a stacked manner to form grilles of different heights. The same connecting rod 423 is matched with different grilles among the multiple grilles to realize multiple different opening and closing angles of the smoke collecting plate 4.

[0076] In specific implementation, referring to Figure 3 , by adjusting the length of the connecting rod 423 (as Figure 10 shown) and its installation and cooperation with different grilles, more angles of opening and closing of the smoke collecting plate 4 can be realized, and the use is simple and reliable. By adjusting the length of the connecting rod 423 and fixing it to grilles of different heights, more angles of opening and closing of the smoke collecting plate 4 can be realized.

[0077] As Figure 1 shown, it can also be referred to Figures 2 - 12 , the range hood I of this embodiment generally includes: the opening and closing structure A of the above-mentioned smoke collecting plate 4 and the smoke collecting plate 4.

[0078] In a preferred embodiment of the present invention, as Figure 1 shown, a notch 45 is provided at the smoke collecting plate 4. The notch 45 is communicated with the air inlet 1 of the range hood I, so that oil fume can be adsorbed even when the smoke collecting plate 4 is not opened. Specifically, a notch 45 is provided below the smoke collecting plate 4.

[0079] In a preferred embodiment of the present invention, as Figure 6 shown, a handle 43 is provided at the notch 45. More specifically, the handle 43 has a smooth transition, which enhances the comfort and experience of the user when manually opening and closing the smoke collecting plate 4.

[0080] In specific implementation, a fixing structure is provided on the back surface of the smoke collecting plate 4. In this example, the fixing structure is a snap structure. Specifically, snap catches 42 are respectively provided on the left side and the right side of the back plate of the smoke collecting plate 4, and left snap catch seats 212 and right snap catch seats 222 are provided on the side plates of the outer shell 2. When closing the smoke collecting plate 4, align the snap catch 42 on the left side of the back plate of the smoke collecting plate 4 with the left snap catch seat 212 on the side plate of the outer shell 2. When hearing a clicking sound, it indicates that the smoke collecting plate 4 is closed in place. The snap catch 42 matches the snap catch seat. In specific implementation, the fixing structure can also be a magnetic structure or other structures capable of realizing the fixing function.

[0081] In the embodiments of the present invention, the term "a plurality of" refers to two or more, unless otherwise clearly defined. Terms such as "mounting", "connecting", and "fixing" should all be understood in a broad sense. For example, "connecting" can be a fixed connection, a detachable connection, or an integral connection. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0082] In the description of the embodiments of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be construed as a limitation to the embodiments of the present invention.

[0083] In the description of this specification, the description of terms such as "an embodiment" and "a preferred embodiment" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0084] The above are only the preferred embodiments of the embodiments of the present invention, and are not used to limit the embodiments of the present invention. For those skilled in the art, the embodiments of the present invention can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the embodiments of the present invention should be included in the protection scope of the embodiments of the present invention.

Claims

1. An opening and closing structure of a smoke collecting plate, which is used for being assembled at the smoke collecting plate and the outer shell of a range hood, and is characterized in that The opening and closing structure (A) includes: An opening and closing assembly (41), fixedly installed at the smoke collecting plate (4), configured with a rotatable connecting rod, and also configured to select connecting rods with different lengths to achieve multiple different opening and closing angles of the smoke collecting plate (4); and A positioning member, formed at a position corresponding to the opening and closing assembly (41) in the housing (2), for inserting and supporting the connecting rod to form a stable support structure with the connecting rod; The opening and closing assembly (41) includes: A fixed bracket (411), serving as an installation base; A rotating shaft (412), supported at the fixed bracket (411), serving as a rotating axis; and, Multiple connecting rods (413, 414), movably installed on the rotating shaft (412), the multiple connecting rods (413, 414) having different lengths, and each connecting rod being used to support the smoke collecting plate (4); Wherein, by opening connecting rods with different lengths, multiple different opening and closing angles of the smoke collecting plate (4) are achieved; The connecting rod includes a first connecting rod (413) and a second connecting rod (414); a groove (4131) is provided on the first connecting rod (413), and a protrusion (132) matching the groove (4131) is provided on the second connecting rod (414); alternatively, a protrusion (132) is provided on the first connecting rod (413), and a groove (4131) matching the protrusion (132) is provided on the second connecting rod (414).

2. The opening and closing structure according to claim 1, characterized in that, The multiple connecting rods are configured to be foldable at the fixed bracket (411).

3. The opening and closing structure according to claim 1, characterized in that, The opening and closing assembly (41) further includes a limiting spring (415), arranged at the rotating shaft (412), one end of which abuts against the fixed bracket (411), and the other end abuts against the surface of the longest connecting rod among the multiple connecting rods (413, 414), so that the longest connecting rod can automatically retract into the fixed bracket (411), and it is ensured that the connecting rod will not have relative movement and shaking in the closed state.

4. A range hood, characterized in that, Includes: The opening and closing structure (A) of the smoke collecting plate according to any one of claims 1 - 3 and the smoke collecting plate (4).

5. The range hood according to claim 4, characterized in that, A notch (45) is provided at the smoke collecting plate (4), and the notch (45) is communicated with the air inlet (1) of the range hood (I).

6. The range hood according to claim 5, characterized in that, A handle (43) is provided at the notch (45).

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