Range hood
By introducing a drive mechanism and a folding smoke-collecting plate design into the range hood, the problem of the opening and closing panel being easily exposed to oil smoke and having a poor smoke-collecting effect is solved, a better smoke-collecting effect and appearance maintenance are achieved, and the equipment structure is simplified.
Patent Information
- Application Number
- CN202422120073.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-08-30
AI Technical Summary
The opening and closing panels of existing range hoods are located at the air inlet and the outside of the range hood body, which is easily exposed to oil smoke, affecting the appearance and cleaning frequency, and the smoke collection effect is poor, and oil smoke easily escapes to the left and right sides.
A range hood is designed, which includes a range hood body, a driving mechanism and a folding smoke collecting plate. The movement of the opening and closing panel and the folding smoke collecting plate is controlled by the driving mechanism to achieve the closing and opening of the air inlet. The folding smoke collecting plate is unfolded on both sides of the opening and closing panel to intercept oil smoke and prevent it from escaping.
The smoke collection effect of the range hood is improved, the frequency of oil contact of the opening and closing panel is reduced, the appearance is kept neat, the equipment structure is simplified and the cleaning frequency is reduced.
Smart Images
Figure CN223319143U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of range hoods, and in particular relates to a range hood. Background Art
[0002] Among existing patents, CN110939964A discloses a range hood comprising: a range hood body having an air inlet; an opening and closing panel movably mounted on the range hood body via an opening and closing assembly; and a drive assembly mounted on the range hood body, the output end of the drive assembly being connected to the lifting panel. The opening and closing panel is hinged at one end to the range hood body and linked to the opening and closing assembly at the other end. The drive assembly drives the lifting panel relative to the opening and closing panel, thereby causing the opening and closing assembly to flip. The movement of the opening and closing assembly then drives the oil screen assembly to open or close the air inlet. Furthermore, the opening and closing assembly includes a supporting link, one end of which is hingedly connected to the range hood body and the other end of which passes through the opening and closing panel and is hinged to the lifting panel. The opening and closing assembly also includes a connecting rod, one end of which is hinged to the range hood body and the other end of which is hinged to the oil screen bracket. The oil screen bracket is hinged at an end distal from the connecting rod to the movable end of the opening and closing panel, and the oil screen is mounted on the oil screen bracket. When the driving assembly drives the lifting panel to descend relative to the opening and closing panel, the lifting panel simultaneously drives the opening and closing panel through the opening and closing assembly to rotate the opening and closing panel and the opening and closing assembly synchronously inward. The rotating movement of the opening and closing assembly then drives the oil screen assembly to close the air inlet, and the oil screen assembly is retracted and hidden inside the range hood body. The overall movement of the range hood is a composite movement of the panel opening and closing and lifting. When the driving assembly drives the lifting panel to ascend relative to the opening and closing panel, the lifting panel simultaneously drives the opening and closing panel through the opening and closing assembly to rotate the opening and closing panel and the opening and closing assembly synchronously outward. The rotating movement of the opening and closing assembly then drives the oil screen assembly to open the air inlet. At this time, when the opening and closing panel is fully opened (refer to Figures 3 and 4 thereof), it is suspended and supported outside the range hood body by the support link and connecting rod of the opening and closing assembly. The opening and closing panel is misaligned with the air inlet, so that the air inlet is open. The space between the opening and closing panel and the air inlet is used to absorb oil fumes.
[0003] The existing patented technology has the following problems:
[0004] When the range hood is working, since the opening and closing panel is located on the outer side of both the air inlet and the range hood body (i.e., the front of both), and the opening and closing panel is completely suspended outside both, the outer side of the opening and closing panel is extremely easy to come into contact with oil smoke, thereby affecting the appearance and cleaning frequency of the opening and closing panel.
[0005] Secondly, the opening and closing panel opens forward, and the smoke collection area is above the stove. However, when stir-frying over high heat, the amount of oil smoke is large, and the path of diffusion forward is blocked by the opening and closing panel. However, there is no smoke collection structure on the left and right sides, and the oil smoke cannot be effectively intercepted, causing the oil smoke to escape to the left and right sides. Utility Model Content
[0006] In view of the shortcomings of the prior art, the present invention provides a range hood, which comprises a range hood body, a driving mechanism and two folding smoke collecting plates. The lower end of the range hood body is provided with an opening and closing panel and an air inlet for sucking oil smoke. The opening and closing panel is located on the outer side of the oil smoke suction port, and the upper end of the opening and closing panel is hinged to the range hood body. The driving mechanism is used to drive the free end of the opening and closing panel to rotate around the hinged end so that the opening and closing panel covers the air inlet, or moves the free end away from the air inlet so that the opening and closing panel can be opened. Relative to the opening of the air inlet, the two folding cigarette collecting plates are respectively located on the two side surfaces of the rotation of the opening and closing panel, the inner sides of the folding cigarette collecting plates are connected to the range hood body, and the outer sides of the folding cigarette collecting plates are drivingly connected to the opening and closing panel. When the opening and closing panel covers the air inlet, the folding cigarette collecting plates are folded on the inner sides of the opening and closing panel. When the free end of the opening and closing panel rotates around the hinged end, the folding cigarette collecting plates are driven to unfold, and the free end of the opening and closing panel and the lower end of the folding cigarette collecting plates form an opening, which is connected to the air inlet.
[0007] Preferably, the folding cigarette collecting plate includes a rotating shaft and two cigarette collecting sub-plates, and the two cigarette collecting sub-plates are hinged by the rotating shaft. The ends of the two cigarette collecting sub-plates away from the hinge of the rotating shaft are respectively connected to the opening and closing panel and the smoke machine body, and the opening and closing panel drives the two cigarette collecting sub-plates to expand or fold around the rotating shaft.
[0008] Preferably, the rotating shaft outer sleeve is provided with a torsion spring, and the two torsion spring heads of the torsion spring are respectively connected to the two cigarette collecting plates. When the two cigarette collecting plates are folded relative to each other, the torsion spring is forced to rotate and twist. When the two cigarette collecting plates are unfolded relative to each other, the torsion spring provides an elastic restoring force for the two to unfold.
[0009] Preferably, the two cigarette collecting plates are connected to the range hood body and the opening and closing panel respectively through a rotating base and a linkage base. The cigarette collecting plates can be rotatably connected around the axis on the rotating base, and the opening and closing panel drives the two cigarette collecting plates to unfold or fold through the linkage base.
[0010] Preferably, the two cigarette collecting sub-plates are fan-shaped and symmetrically arranged along the rotation axis. When the two cigarette collecting sub-plates are folded, they fold toward the inside of the opening and closing panel around the rotation axis.
[0011] Preferably, the air inlet is provided with a filter screen, and an oil cup is correspondingly provided at the lower end of the air inlet, and the oil cup removes oil droplets left from the air inlet.
[0012] Preferably, a 7-shaped smoke collecting chamber is formed at the lower end of the range hood body, the air inlet is arranged on the inner side of the smoke collecting chamber, the upper end of the opening and closing panel is hinged at the bend of the smoke collecting chamber, and the lower end is freely movable in the smoke collecting chamber, and when the lower end of the opening and closing panel is rotated to the air inlet, the opening and closing panel covers the air inlet, and when the lower end of the opening and closing panel is away from the air inlet, the lower end of the opening and closing panel and the lower end of the folding smoke collecting plate form an oil smoke suction channel, the lower end of the oil smoke suction channel is open, and the outer side and the upper end are closed by the opening and closing panel and the folding smoke collecting plate, and the inner side of the oil smoke suction channel is connected with the air inlet.
[0013] Preferably, when the foldable smoke collecting plate is fully unfolded, the effective smoke absorption length of the lower opening is L1, the thickness of the range hood body at the same horizontal height of the lower opening is L2, and 0.5L1>L2.
[0014] Preferably, the driving mechanism includes a driving motor, a driving rod, a connecting rod and a rotating rod, the output end of the driving motor is drivingly connected to the first end of the driving rod, the second end of the driving rod is drivingly connected to the first end of the connecting rod, the second end of the connecting rod is drivingly connected to the rotating rod, and the rotating rod is also drivingly connected to the opening and closing panel, the driving motor drives the driving rod to rotate in the forward and reverse directions, the rotation of the driving rod drives the rotating rod to rotate through the connecting rod, and when the rotating rod rotates, it drives the opening and closing panel to rotate around the hinge.
[0015] Preferably, the driving mechanism also includes a rod hinge seat and a motor bracket, the rod hinge seat is installed on the opening and closing panel, the rotating rod is L-shaped, the first end of the rotating rod is hinged to the motor bracket, the second end of the rotating rod is hinged to the rod hinge seat, the second end of the connecting rod is hinged to the bending part of the rotating rod, the motor bracket is installed on the range hood body, the driving motor is installed on the motor bracket, the output end of the driving motor passes through the motor bracket, and the second end of the driving rod is hinged to the first end of the connecting rod. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The above and other purposes, features and advantages of the present invention will become more apparent through a more detailed description of the preferred embodiments of the present invention shown in the accompanying drawings. The same reference numerals indicate the same parts throughout the accompanying drawings, and the drawings are not intentionally scaled to actual size, but rather are intended to illustrate the subject matter of the present invention.
[0017] Figure 1a , Figure 1b They are schematic diagrams of the structure of the range hood provided by the embodiment when the foldable smoke collecting plate is folded to completely close the air inlet;
[0018] Figure 2a , Figure 2bThey are schematic structural diagrams of the foldable smoke-collecting plate in the range hood provided in the embodiments when it is unfolded to a certain extent;
[0019] Figure 3a , Figure 3b They are schematic diagrams of the structure of the foldable smoke-collecting plate in the range hood provided in the embodiments when it is fully unfolded;
[0020] Figure 4a for Figure 1a Schematic diagram of the structure of the middle drive mechanism, folding cigarette collecting plate and torsion spring in corresponding states;
[0021] Figure 4b for Figure 2a Schematic diagram of the structure of the middle drive mechanism, folding cigarette collecting plate and torsion spring in corresponding states;
[0022] Figure 4c for Figure 3a Schematic diagram of the structure of the middle drive mechanism, folding cigarette collecting plate and torsion spring in corresponding states;
[0023] Figure 5 This is a schematic structural diagram of the foldable cigarette collecting plate provided in the embodiment.
[0024] Figures indicate: range hood body a1, air inlet a2, opening and closing panel a3, smoke collecting chamber a4, oil cup a5, folding smoke collecting plate b1, smoke collecting sub-plate b2, torsion spring b3, rotating shaft b4, bushing b5, rotating base b6, linkage base b7, driving motor c1, driving rod c2, connecting rod c3, rotating rod c4, rod hinge seat c5, motor bracket c6. DETAILED DESCRIPTION
[0025] In order to facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings.
[0026] It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to the other element and integrated therewith, or there may be an intermediate element. The terms "mounted", "one end", "the other end" and similar expressions used herein are for illustrative purposes only.
[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art. The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the relevant listed items.
[0028] On the one hand, a range hood is provided, which includes a range hood body a1, a driving mechanism and two folding smoke collecting plates b1. The lower end of the range hood body a1 is provided with an opening and closing panel a3 and an air inlet a2 for sucking oil smoke. The opening and closing panel a3 is located on the outer side of the oil smoke suction port. The upper end of the opening and closing panel a3 is hinged to the range hood body a1. The driving mechanism is used to drive the free end of the opening and closing panel a3 to rotate around the hinge end so that the opening and closing panel a3 covers the air inlet a2, or moves the free end away from the air inlet a2 so that the opening and closing panel a3 can be relative to the air inlet a2. 2 is opened, and the two foldable smoke collecting plates b1 are respectively located on the two sides of the rotation of the opening and closing panel a3. The inner side of the foldable smoke collecting plate b1 is connected to the range hood body a1, and the outer side of the foldable smoke collecting plate b1 is drivingly connected to the opening and closing panel a3. When the opening and closing panel a3 covers the air inlet a2, the foldable smoke collecting plate b1 is folded inside the opening and closing panel a3. When the free end of the opening and closing panel a3 rotates around the hinged end, the foldable smoke collecting plate b1 is driven to unfold, and the free end of the opening and closing panel a3 and the lower end of the foldable smoke collecting plate b1 form an opening, which is connected to the air inlet a2.
[0029] The opening and closing panel a3 of the present application is provided with folding smoke collecting plates b1 on the left and right sides respectively. The oil smoke basically enters the air inlet a2 through the opening at the lower end of the opening and closing panel a3, so the outer side of the opening and closing panel a3 is not easily exposed to oil smoke, which can reduce the cleaning frequency; the folding smoke collecting plate b1 can effectively intercept the oil smoke and prevent it from escaping to the left and right sides; at the same time, the folding smoke collecting plate b1 and the opening and closing panel a3 are driven by a driving mechanism, which simplifies the equipment structure and reduces costs.
[0030] In a preferred embodiment, the folding cigarette collecting plate b1 includes a rotating axis b4 and two cigarette collecting sub-plates b2. The two cigarette collecting sub-plates b2 are hinged through the rotating axis b4. The ends of the two cigarette collecting sub-plates b2 that are hinged away from the rotating axis b4 are respectively connected to the opening and closing panel a3 and the smoke machine body a1. The opening and closing panel a3 drives the two cigarette collecting sub-plates b2 to expand or fold around the rotating axis b4.
[0031] In a preferred embodiment, a torsion spring b3 is provided on the outer sleeve of the rotating shaft b4, and the two torsion spring b3 heads are respectively connected to the two cigarette-holding plates b2. When the two cigarette-holding plates b2 are folded relative to each other, the torsion spring b3 is forced to rotate and twist. When the two cigarette-holding plates b2 are unfolded relative to each other, the torsion spring b3 provides an elastic restoring force for the two to unfold.
[0032] In a preferred embodiment, the two cigarette-collecting panels b2 are connected to the range hood body a1 and the opening and closing panel a3, respectively, via a rotating base b6 and a linkage base b7. The cigarette-collecting panels b2 are rotatable about the axis of the rotating base b6, and the opening and closing panel a3, via the linkage base b7, drives the two cigarette-collecting panels b2 to unfold or fold. Furthermore, the cigarette-collecting panels b2 and the rotating base b6 are also hinged via a rotating axis.
[0033] In a preferred embodiment, the two cigarette collecting sub-plates b2 are fan-shaped and symmetrically arranged along the rotation axis b4. When the two cigarette collecting sub-plates b2 are folded, they fold around the rotation axis b4 toward the inside of the opening and closing panel a3.
[0034] In a preferred embodiment, the air inlet a2 is provided with a filter screen, and an oil cup a5 is correspondingly provided at the lower end of the air inlet a2 to remove oil droplets left by the air inlet a2.
[0035] In a preferred embodiment, a 7-shaped smoke collecting chamber a4 is formed at the lower end of the range hood body a1, and the air inlet a2 is arranged on the inner side of the smoke collecting chamber a4. The upper end of the opening and closing panel a3 is hinged at the bend of the smoke collecting chamber a4, and the lower end is free to move in the smoke collecting chamber a4. When the lower end of the opening and closing panel a3 rotates to the air inlet a2, the opening and closing panel a3 covers the air inlet a2. When the lower end of the opening and closing panel a3 is away from the air inlet a2, the lower end of the opening and closing panel a3 and the lower end of the folding smoke collecting plate b1 form an oil smoke suction channel. The lower end of the oil smoke suction channel is open and the outer side and the upper end are closed by the opening and closing panel a3 and the folding smoke collecting plate b1. The inner side of the oil smoke suction channel is connected with the air inlet a2.
[0036] In a preferred embodiment, when the foldable smoke collecting plate b1 is fully unfolded, the effective smoke absorption length of the lower opening is L1, and the thickness of the range hood body a1 at the same horizontal height of the lower opening is L2, and 0.5L1>L2.
[0037] In a preferred embodiment, the driving mechanism includes a driving motor c1, a driving rod c2, a connecting rod c3 and a rotating rod c4. The output end of the driving motor c1 is drivingly connected to the first end of the driving rod c2, the second end of the driving rod c2 is drivingly connected to the first end of the connecting rod c3, the second end of the connecting rod c3 is drivingly connected to the rotating rod c4, and the rotating rod c4 is also drivingly connected to the opening and closing panel a3. The driving motor c1 drives the driving rod c2 to rotate in the forward and reverse directions. The rotation of the driving rod c2 drives the rotating rod c4 to rotate through the connecting rod c3. When the rotating rod c4 rotates, it drives the opening and closing panel a3 to rotate around the hinge.
[0038] In a preferred embodiment, the driving mechanism also includes a rod hinge seat c5 and a motor bracket c6. The rod hinge seat c5 is installed on the opening and closing panel a3. The rotating rod c4 is L-shaped. The first end of the rotating rod c4 is hinged to the motor bracket c6. The second end of the rotating rod c4 is hinged to the rod hinge seat c5. The second end of the connecting rod c3 is hinged to the bending part of the rotating rod c4. The motor bracket c6 is installed on the range hood body a1. The driving motor c1 is installed on the motor bracket c6. The output end of the driven motor c1 passes through the motor bracket c6. The second end of the driving rod c2 is hinged to the first end of the connecting rod c3.
[0039] The diagram shows the folding smoke collecting plate b1 when the range hood is turned on or off. The larger the area of the smoke collecting plate, the better the smoke collecting effect. The side view shows that when the folding smoke collecting plate b1 is fully opened, it is perpendicular to the opening and closing panel a3. The length L1 of the smoke collecting plate when fully opened is much greater than the thickness L2 of the side of the range hood. If the smoke collecting plate is directly stored inside the range hood, there will be insufficient space. In the present utility model, the folding smoke collecting plate b1 is composed of several overlapping sheet-like smoke collecting sub-plates b2. The smoke collecting sub-plates b2 follow the movement of the range hood opening and closing panel a3. When the opening and closing panel a3 is closed, the folding smoke collecting plate b1 folds in half and flips over, and the angle between the folding smoke collecting plate b1 and the opening and closing panel a3 gradually decreases. Because the folding structure allows the thickness of the smoke collecting plate to be much smaller than the thickness L2 of the side of the range hood after folding, the smoke collecting sub-plate b2 can be completely stored inside the range hood. Because the exterior surfaces are folded relative to each other during the folding process, they can effectively prevent contamination by oil stains, that is, the exterior surfaces remain clean after the next opening.
[0040] The folding cigarette collecting plate b1 is a driven mechanism and is attached to the opening and closing panel a3. Figure 4a 、 Figure 4b and Figure 4c The driving mechanism principle is as follows: the driving motor c1 is mounted on the motor bracket c6 and drives the driving rod c2 to rotate. The rotating rod c4 is fixed to the rotating bracket and rotates around the center of the mounting point. The connecting rod c3 connects the driving rod c2 and the rotating rod c4. The motor driving force is transmitted to the rotating rod c4, causing the opening and closing panel a3 fixed on the rotating rod c4 to rotate and open. At the same time, folding smoke collecting plates b1 are provided on both sides of the opening and closing panel a3. The folding smoke collecting plates b1 are divided into two or more. The smoke collecting plates are fan-shaped structures that can match the fan-shaped movement trajectory of the opening and closing panel a3. The rotating base b6 is fixed to the side of the range hood as a rotation reference. The second smoke collecting sub-plate b2 is connected to the rotating base b6 so that the second smoke collecting sub-plate b2 can rotate around the axis on the rotating base b6. Linkage bases b7 are provided on both sides of the opening and closing panel a3, and the linkage base b7 is connected to the first cigarette collecting sub-plate b2. After the first cigarette collecting sub-plate b2 and the second cigarette collecting sub-plate b2 are connected through the axis, the folded cigarette collecting plate b1 can rotate around three axes. In order to constrain the rotation direction of the cigarette collecting plate, a torsion spring b3 structure is added when the first cigarette collecting sub-plate b2 and the second cigarette collecting sub-plate b2 are connected.
[0041] The folding cigarette collecting plate b1 has a cylindrical hole for mounting the rotating shaft b4. When the two plates are mated, they can rotate around each other's axis. A sleeve b5 blocks the cylindrical hole, preventing the rotating shaft b4 from sliding out. A torsion spring b3 is installed between the cigarette collecting sub-plates b2. The spring b3 has an elastic force and is embedded in the rotating shaft b4.
[0042] Please refer to Figure 1a 、 Figure 1b and Figure 4aWhen the opening and closing panel a3 is closed and the folding smoke collecting plate b1 is completely folded in half and stored inside the range hood, the torsion spring b3 is in a natural state.
[0043] Please refer to Figure 2a 、 Figure 2b and Figure 4b When the range hood is started, the opening and closing panel a3 opens, and the two smoke collecting plates follow suit, that is, the angle between the smoke collecting plates becomes larger, and the torsion spring b3 is gradually pulled apart by the surface of the smoke collecting plates, and the rebound force gradually increases.
[0044] Please refer to Figure 3a 、 Figure 3b and Figure 4c When opening and closing panel a3 is fully opened, the smoke collecting plate is perpendicular to it, forming a 180-degree angle between the two plates. At this point, torsion spring b3 is fully deployed, and its rebound force reaches its maximum during its travel. When opening and closing panel a3 is closed, the rebound force of torsion spring b3 forces the smoke collecting plate to fold inward, forcing foldable smoke collecting plate b1 to be stored inside the range hood, preventing the smoke collecting plate from folding outward and potentially causing mechanism failure. Controlling the smoke collecting plate's movement direction through torsion spring b3 is simple and reliable.
[0045] The utility model has at least the following advantages:
[0046] 1. An opening and closing panel a3 is added to the range hood's air inlet a2, which is controlled by the power switch. When panel a3 is open, air inlet a2 draws in and exhausts cooking fumes. The smoke collection area changes with the angle of panel a3's opening. When the range hood is turned off, panel a3 closes air inlet a2, shielding it from internal grease. The overall appearance of the range hood is flat, making it easy to clean and preventing backflow of cooking fumes from the public flue.
[0047] 2. The range hood features an ultra-thin, figure-7 shape, with an opening and closing panel a3 at the front. When the range hood is closed, the panel a3 closes the air inlet a2, resulting in a flat, simple appearance and easy cleaning. When the panel a3 is opened, the air inlet a2 opens, and the foldable smoke-collecting panels b1 on either side of the panel a3 open accordingly, forming a three-sided smoke-collecting area in front of the air inlet a2. The large side foldable smoke-collecting panels b1 prevent oil smoke from escaping from the sides of the range hood, improving the extraction efficiency. When the range hood is closed, the panel a3 causes the foldable smoke-collecting panels b1 to fold inward and be completely stored inside the range hood, without affecting the range hood's appearance.
[0048] 3. The folding smoke collecting plate b1 moves along with the opening and closing panel a3, which does not affect the appearance of the whole machine, takes up little space and has a large smoke collecting area.
[0049] 4. The folding motion mechanism is attached to the opening and closing panel a3 as a driven mechanism, which reduces the number of motors and connecting parts and improves reliability.
[0050] 5. A torsion spring b3 is added to the folding mechanism to provide pre-rebound force and control the folding direction to prevent the folding cigarette collecting plate b1 from getting stuck and failing during operation.
[0051] 6. After being folded, the exterior surface of the foldable smoke collecting plate b1 is in an inward relative state, which can prevent oil pollution.
[0052] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.
[0053] In the description of this specification, the description with reference to the terms "preferred embodiment", "further embodiment", "other embodiments" or "specific example" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions 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 any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.
[0054] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.
Claims
1. A range hood, characterized in that: The range hood comprises a range hood body, a driving mechanism and two foldable smoke collecting plates, wherein the lower end of the range hood body is provided with an opening and closing panel and an air inlet for sucking oil smoke, the opening and closing panel is located on the outer side of the range hood body for sucking oil smoke, the upper end of the opening and closing panel is hinged on the range hood body, the driving mechanism is used to drive the free end of the opening and closing panel to rotate around the hinge end so that the opening and closing panel covers the air inlet, or to move the free end away from the air inlet so that the opening and closing panel can be opened relative to the air inlet, the two foldable smoke collecting plates are respectively located on the two side surfaces where the opening and closing panel rotates, the inner sides of the foldable smoke collecting plates are connected to the range hood body, and the outer sides of the foldable smoke collecting plates are drivingly connected to the opening and closing panels. When the opening and closing panel covers the air inlet, the foldable smoke collecting plates are folded inside the opening and closing panel, and when the free end of the opening and closing panel rotates around the hinge end, the foldable smoke collecting plates are driven to unfold, and the free end of the opening and closing panel and the lower end of the foldable smoke collecting plates form an opening, which is communicated with the air inlet.
2. The range hood according to claim 1, wherein: The folding cigarette collecting plate includes a rotating shaft and two cigarette collecting sub-plates. The two cigarette collecting sub-plates are hinged by the rotating shaft. The ends of the two cigarette collecting sub-plates that are hinged away from the rotating shaft are respectively connected to the opening and closing panel and the smoke machine body. The opening and closing panel drives the two cigarette collecting sub-plates to unfold or fold around the rotating shaft.
3. The range hood according to claim 2, wherein: The rotating shaft outer sleeve is provided with a torsion spring, and the two torsion spring heads are respectively connected to the two cigarette collecting plates. When the two cigarette collecting plates are folded relative to each other, the torsion spring is forced to rotate and twist. When the two cigarette collecting plates are unfolded relative to each other, the torsion spring provides elastic restoring force for the two to unfold.
4. The range hood according to claim 2, wherein: The two cigarette collecting plates are connected to the range hood body and the opening and closing panel respectively through a rotating base and a linkage base. The cigarette collecting plates can be rotatably connected around the axis on the rotating base, and the opening and closing panel drives the two cigarette collecting plates to unfold or fold through the linkage base.
5. The range hood according to claim 4, wherein: The two cigarette collecting sub-plates are in the shape of a fan-shaped structure and are symmetrically arranged along the rotation axis. When the two cigarette collecting sub-plates are folded, the two cigarette collecting sub-plates fold toward the inside of the opening and closing panel around the rotation axis.
6. The range hood according to claim 1, wherein: The air inlet is provided with a filter screen, and the lower end of the air inlet is correspondingly provided with an oil cup, which removes oil droplets left by the air inlet.
7. The range hood according to claim 6, wherein: A 7-shaped smoke collecting chamber is formed at the lower end of the range hood body, and the air inlet is arranged on the inner side of the smoke collecting chamber. The upper end of the opening and closing panel is hinged at the bend of the smoke collecting chamber, and the lower end is freely movable in the smoke collecting chamber, and when the lower end of the opening and closing panel is rotated to the air inlet, the opening and closing panel covers the air inlet. When the lower end of the opening and closing panel is away from the air inlet, the lower end of the opening and closing panel and the lower end of the folding smoke collecting plate form an oil smoke suction channel, the lower end of the oil smoke suction channel is open, and the outer side and the upper end are closed by the opening and closing panel and the folding smoke collecting plate, and the inner side of the oil smoke suction channel is connected with the air inlet.
8. The range hood according to claim 7, wherein: When the foldable smoke collecting plate is fully unfolded, the effective smoke absorption length of the lower opening is L1, the thickness of the range hood body at the same horizontal height of the lower opening is L2, and 0.5L1>L2.
9. The range hood according to claim 1, wherein: The driving mechanism includes a driving motor, a driving rod, a connecting rod and a rotating rod. The output end of the driving motor is drivingly connected to the first end of the driving rod, the second end of the driving rod is drivingly connected to the first end of the connecting rod, the second end of the connecting rod is drivingly connected to the rotating rod, and the rotating rod is also drivingly connected to the opening and closing panel. The driving motor drives the driving rod to rotate in the forward and reverse directions. The rotation of the driving rod drives the rotating rod to rotate through the connecting rod. When the rotating rod rotates, it drives the opening and closing panel to rotate around the hinge.
10. The range hood according to claim 9, wherein: The driving mechanism also includes a rod hinge seat and a motor bracket. The rod hinge seat is installed on the opening and closing panel. The rotating rod is L-shaped. The first end of the rotating rod is hinged to the motor bracket. The second end of the rotating rod is hinged to the rod hinge seat. The second end of the connecting rod is hinged to the bending part of the rotating rod. The motor bracket is installed on the range hood body. The driving motor is installed on the motor bracket. The output end of the driving motor passes through the motor bracket. The second end of the driving rod is hinged to the first end of the connecting rod.