Range hood capable of preventing smoke leakage in gap of smoke barrier

Abstract

A range hood capable of preventing smoke leakage from gaps of a smoke barrier comprises a smoke collecting hood and the smoke barrier, an air inlet is formed in the smoke collecting hood, and the smoke barrier is hinged to the smoke collecting hood in a turnover mode so as to be used for closing or opening the air inlet. The strip-shaped hole capable of being matched with the smoke shielding sheet is formed in the smoke collecting hood, and when the smoke baffle is turned to the open state, the smoke shielding sheet can partially extend into the strip-shaped hole and shield a gap between the smoke baffle and the smoke collecting hood, so that the defect that oil smoke easily escapes from the gap in the prior art is overcome, and the cooking experience of a user is optimized. Meanwhile, when the smoke barrier is switched from the open state to the closed state, the smoke shielding sheet can synchronously rotate along with the smoke barrier and can enter the smoke collecting hood from the strip-shaped hole to be hidden, and the overall attractiveness of the range hood is not affected at all. In addition, a power source does not need to be additionally arranged to drive the smoke shielding sheet to rotate, and therefore environment protection and energy conservation are better achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil fume purification devices, and particularly relates to a range hood capable of preventing oil fume from escaping through the gap of a smoke baffle. Background Art

[0002] A range hood is a kitchen appliance for purifying the kitchen environment. Generally, range hoods include two smoking methods: top suction type and side suction type. Among them, the side suction type range hood utilizes the principle of eddy current wind pressure, and can absorb most of the oil fume close to the cooking range in an arc shape to reduce the adverse impact on human health. Moreover, the power source is close to the cooking range, and basically will not reduce the suction effect of the power source. In addition, in order to prevent oil fume from escaping and thus improve the oil fume suction effect, currently, a smoke baffle for guiding the flow of oil fume is usually provided at the air inlet of the range hood.

[0003] For example, the "Anti-backflow Mechanism of a Range Hood" disclosed in the Chinese invention patent application with the application number 201510201000.2 (the application publication number is CN04776478A) includes an oil receiving bottom tank, a range hood body, a baffle, an opening and closing panel, a flue casing, and a smoke baffle. A baffle is provided on the range hood body, an opening and closing panel is connected to the range hood body through a rotating shaft, a flue casing is provided above the range hood body, a cavity is provided inside the range hood body, and a smoke baffle is provided on the range hood body.

[0004] However, for the smoke baffle of such range hoods, since it is long-term exposed above the oil fume and directly contacts the oil fume, there will be a gap at the connection between the smoke baffle and the outer shell of the range hood during the process of the smoke baffle opening and closing around the axis, and the area of the gap can reach about 0.45 square, which will cause some oil fume to escape. When the amount of oil fume generated during cooking is large, the escape of oil fume is particularly obvious, which affects the cooking experience of users and poses a threat to the health of users.

[0005] Therefore, how to provide a range hood that can effectively block the channel for oil fume to escape from the gap between the smoke baffle and the panel to reduce the escape of oil fume is an urgent problem to be solved by those skilled in the art. Summary of the Utility Model

[0006] The technical problem to be solved by the utility model is to provide a range hood capable of preventing oil fume from escaping through the gap between the smoke baffle and the smoke collecting hood according to the above-mentioned prior art, which can prevent oil fume from escaping through the gap of the smoke baffle.

[0007] The technical solution adopted by the present utility model to solve the above technical problems is as follows: An oil fume extractor capable of preventing smoke from escaping through the gap of the smoke baffle, which includes a smoke collecting hood and a smoke baffle. An air inlet is provided on the smoke collecting hood, and the smoke baffle is rotatably connected to the smoke collecting hood to close or open the air inlet. When the smoke baffle is in the state of opening the air inlet, a gap for the oil fume to escape is formed between the smoke baffle and the smoke collecting hood. It is characterized in that: It further includes a smoke shielding piece provided on the smoke baffle, and at least part of the smoke shielding piece protrudes from the side of the smoke baffle close to the rotation connection part. A strip-shaped hole extending horizontally and adapted to the smoke shielding piece is also provided on the smoke collecting hood. When the smoke baffle is flipped to the open state, at least part of the smoke shielding piece can extend into the strip-shaped hole and cover the gap to prevent the oil fume from escaping. When the smoke baffle is flipped from the open state to the closed state, the smoke shielding piece can rotate synchronously with the smoke baffle and can enter the interior of the smoke collecting hood from the strip-shaped hole.

[0008] In order to optimize the overall structure of the smoke shielding piece and enable the smoke shielding piece to better adapt to the strip-shaped hole during the synchronous flipping with the smoke baffle, preferably, the smoke shielding piece includes a middle section, a mounting section and a connecting section respectively connected to both ends of the middle section. The mounting section is mounted on the bottom of the smoke baffle. When the smoke baffle is flipped to the open state, the connecting section extends into the strip-shaped hole. When the smoke baffle is flipped to the closed state, both the connecting section and the middle section are placed inside the smoke collecting hood.

[0009] In order to enable the smoke shielding piece to better seal the gap between the smoke baffle and the smoke collecting hood, preferably, both the mounting section and the connecting section are formed in a bent shape at both ends of the middle section and each form an angle, and the bending directions of the mounting section and the connecting section are arranged in the opposite direction. The angle formed between the mounting section and the middle section is 80° - 100°, and the angle formed between the connecting section and the middle section is 100° - 120°.

[0010] In order to enable the smoke shielding piece to better seal with the inner side wall of the edge of the strip-shaped hole after extending into the strip-shaped hole, preferably, a folded edge parallel to the inner side wall of the edge of the strip-shaped hole is further formed at the rear end of the connecting section, and a flexible sealing strip is provided on the folded edge. When the smoke baffle is flipped to the open state, the sealing strip can fit on the inner side wall of the edge of the strip-shaped hole to close the strip-shaped hole.

[0011] In order to enable the sealing strip to better seal with the inner side wall of the edge of the strip-shaped hole, preferably, a curled edge for the sealing strip to fit is further formed on the inner side wall of the edge of the strip-shaped hole. When the smoke baffle is flipped to the open state, the sealing strip can fit on the curled edge.

[0012] In order to enable the sealing strip to quickly disengage from the curled edge when the smoke baffle switches from the open state to the closed state, preferably, a serrated groove is also formed in the area of the sealing strip for fitting the curled edge, and the serrated groove can make the sealing strip more likely to deform and disengage from the curled edge when the smoke baffle flips.

[0013] In order to enable the air inlet and the strip-shaped hole provided on the smoke collecting hood to better adapt to the rotation of the smoke baffle, preferably, the bottom of the smoke collecting hood is inclined from the front end to the rear end to form an inclined wall with a higher front and a lower rear. The air inlet, the strip-shaped hole and the smoke baffle are all provided on the inclined wall, and the strip-shaped hole is located above the air inlet and is adjacent to it.

[0014] In order to prevent the oil fume coming in from the air inlet from running towards the strip-shaped hole, preferably, a partition for isolating the air inlet and the strip-shaped hole is also provided in the smoke collecting hood.

[0015] In order to enable the smoke baffle to better drive the smoke shielding piece to rotate synchronously, preferably, a hinge assembly for hinging the smoke baffle to the smoke collecting hood is further included. The hinge assembly includes a left hinge and a right hinge arranged at intervals. The first ends of the left hinge and the right hinge are both connected to the bottom of the smoke baffle, and the second ends both pass through the inclined wall and extend into the interior of the smoke collecting hood. A driving mechanism for driving the left hinge and / or the right hinge to flip is also provided in the smoke collecting hood.

[0016] Compared with the prior art, the advantages of the present utility model are as follows: The range hood is provided with a smoke shielding piece that can rotate synchronously with the smoke baffle on the smoke baffle, and a strip-shaped hole that can adapt to the smoke shielding piece is provided on the smoke collecting hood. When the smoke baffle flips to the open state, the smoke shielding piece can partially extend into the strip-shaped hole and cover the gap between the smoke baffle and the smoke collecting hood, thus avoiding the drawback that oil fume easily escapes from this gap in the prior art and optimizing the cooking experience of users. At the same time, when the smoke baffle switches from the open state to the closed state, the smoke shielding piece can also rotate synchronously with the smoke baffle and enter the interior of the smoke collecting hood from the strip-shaped hole and hide, without affecting the overall aesthetics of the range hood at all. In addition, since the range hood does not need to separately set a power source to specifically drive the rotation of the smoke shielding piece, it is also more environmentally friendly and energy-saving, and is more conducive to reducing costs. Description of the Drawings

[0017] Figure 1 Schematic structural diagram of the smoke baffle in the open state in this embodiment;

[0018] Figure 2 Cross-sectional schematic diagram of the smoke baffle in the open state in this embodiment;

[0019] Figure 3 For Figure 2 Enlarged view of part A in

[0020] Figure 4Cross-sectional schematic view of the smoke baffle in the closed state in this embodiment;

[0021] Figure 5 is Figure 4 the enlarged view of part B in;

[0022] Figure 6 Schematic structural view of the smoke shielding sheet installed on the smoke baffle in this embodiment;

[0023] Figure 7 Schematic structural view of the bottom of the smoke collecting hood in this embodiment;

[0024] Figure 8 Front orthographic projection view of the side of the smoke shielding sheet in this embodiment. Detailed implementation manners

[0025] The present utility model will be further described in detail below in conjunction with the embodiments with reference to the drawings.

[0026] Figures 1 to 8 The shown is the schematic structural view of this embodiment. The range hood capable of preventing smoke from leaking through the gap of the smoke baffle in this embodiment mainly includes a smoke collecting hood 1, a smoke baffle 2, a smoke shielding sheet 3, etc.

[0027] Refer to Figures 1 to 5 As shown, an air inlet 1a is provided on the smoke collecting hood 1. The smoke baffle 2 is pivotally hinged to the smoke collecting hood 1 to close or open the air inlet 1a. When the smoke baffle 2 is in the state of opening the air inlet 1a, a gap X for the oil fume to escape is formed between the smoke baffle 2 and the smoke collecting hood 1. A smoke shielding sheet 3 is further provided on the smoke baffle 2. At least a part of the smoke shielding sheet 3 protrudes from the side of the smoke baffle 2 close to the hinged part. A strip-shaped hole 1b extending horizontally and adapted to the smoke shielding sheet 3 is further provided on the smoke collecting hood 1. When the smoke baffle 2 is flipped to the open state, the smoke shielding sheet 3 can partially extend into the strip-shaped hole 1b and cover the gap A to prevent the oil fume from escaping. When the smoke baffle 2 is flipped from the open state to the closed state, the smoke shielding sheet 3 can rotate synchronously with the smoke baffle 2 and can enter the interior of the smoke collecting hood 1 from the strip-shaped hole 1b.

[0028] Among them, in order to optimize the overall structure of the smoke shielding sheet 3 and enable the smoke shielding sheet 3 to better adapt to the strip-shaped hole 1b during the synchronous flipping with the smoke baffle 2, refer to Figure 3 and Figure 8 As shown, in this embodiment, the smoke shielding sheet 3 includes an intermediate section 3b, a mounting section 3a and a connecting section 3c respectively connected to both ends of the intermediate section 3b. The mounting section 3a is mounted on the bottom of the smoke baffle 2. When the smoke baffle 2 is flipped to the open state, the connecting section 3c extends into the strip-shaped hole 1b. When the smoke baffle 2 is flipped to the closed state, both the connecting section 3c and the intermediate section 3b are placed inside the smoke collecting hood 1.

[0029] Secondly, in order to enable the smoke shielding sheet 3 to better seal the gap X between the smoke baffle 2 and the smoke collecting hood 1, refer to Figure 8 As shown, in this embodiment, both the installation section 3a and the connection section 3c are formed in a bent shape at both ends of the middle section 3b and each form an angle. Moreover, the bending directions of the installation section 3a and the connection section 3c are arranged in opposite directions. The angle a formed between the installation section 3a and the middle section 3b is 80° to 100°, preferably 92°. The angle b formed between the connection section 3c and the middle section 3b is 100° to 120°, preferably 114°.

[0030] In addition, in order to enable the smoke shielding sheet 3 to better seal with the inner side wall of the edge of the strip-shaped hole 1b after extending into the strip-shaped hole 1b, refer to Figure 3 and Figure 6 As shown, in this embodiment, a folded edge 3c1 parallel to the inner side wall of the edge of the strip-shaped hole 1b is further formed at the rear end of the connection section 3c. A flexible sealing strip 3d is provided on the folded edge 3c1. When the smoke baffle 2 is flipped to the open state, the sealing strip 3d can be attached to the inner side wall of the edge of the strip-shaped hole 1b to close the strip-shaped hole 1b.

[0031] Meanwhile, in order to enable the sealing strip 3d to better seal with the inner side wall of the edge of the strip-shaped hole 1b, refer to Figure 3 As shown, a curled edge 1b1 for the sealing strip 3d to fit is further formed on the inner side wall of the edge of the strip-shaped hole 1b. When the smoke baffle 2 is flipped to the open state, the sealing strip 3d can be attached to the curled edge 1b1.

[0032] In addition, in order to enable the sealing strip 3d to quickly disengage from the curled edge 1b1 when the smoke baffle 2 is switched from the open state to the closed state, refer to Figure 6 As shown, in this embodiment, a serrated groove 3d1 is further formed in the area of the sealing strip 3d for attaching to the curled edge 1b1. The serrated groove 3d1 can enable the sealing strip 3d to be more easily deformed and disengage from the curled edge 1b1 when the smoke baffle 2 is flipped.

[0033] In this embodiment, in order to enable the air inlet 1a and the strip-shaped hole 1b provided on the smoke collecting hood 1 to better adapt to the rotation of the smoke baffle 2, refer to Figure 1 and Figure 7 As shown, the bottom of the smoke collecting hood 1 is inclined from the front end to the rear end to form an inclined wall 1c with the front end higher than the rear end. The air inlet 1a, the strip-shaped hole 1b and the smoke baffle 2 are all provided on the inclined wall 1c. The strip-shaped hole 1b is located above the air inlet 1a and is adjacent to it.

[0034] In this embodiment, in order to prevent the oil fume coming in from the air inlet 1a from running towards the strip-shaped hole 1b, refer to Figure 3 and Figure 5As shown, a partition plate 6 for isolating the air inlet 1a and the strip-shaped holes 1b is further provided inside the smoke collecting hood 1, so as to prevent the oil fume entering from the air inlet 1a from running towards the strip-shaped holes 1b.

[0035] In this embodiment, in order to enable the smoke baffle 1 to better drive the smoke shielding piece 3 to rotate synchronously, refer to Figure 1 and Figure 6 As shown, a hinge assembly 4 for hinging the smoke baffle 2 to the smoke collecting hood 1 is specifically provided. The hinge assembly 4 includes a left hinge 4a and a right hinge 4b arranged at intervals. The first ends of the left hinge 4a and the right hinge 4b are both connected to the bottom of the smoke baffle 2, and the second ends both pass through the inclined wall 1c and extend into the interior of the smoke collecting hood 1. A driving mechanism 5 capable of driving the left hinge 4a and / or the right hinge 4b to flip is further provided inside the smoke collecting hood 1.

[0036] In addition, it should be further noted that: in this embodiment, by providing a smoke shielding piece 3 on the smoke baffle 2 that can rotate synchronously with the smoke baffle 2, and by providing strip-shaped holes 1b on the smoke collecting hood 1 that can be adapted to the smoke shielding piece 3, when the smoke baffle 2 is flipped to the open state, the smoke shielding piece 3 can partially extend into the strip-shaped holes 1b and cover the gap X between the smoke baffle 2 and the smoke collecting hood 2, thereby avoiding the drawback that oil fume is prone to escape from this gap X in the prior art and optimizing the user's cooking experience. At the same time, when the smoke baffle 2 is switched from the open state to the closed state, the smoke shielding piece 3 can also rotate synchronously with the smoke baffle 2 and enter the interior of the smoke collecting hood 1 from the strip-shaped holes 1b and be hidden, without affecting the overall aesthetics of the range hood at all. Moreover, since there is no need to additionally provide a power source to specifically drive the rotation of the smoke shielding piece 3 here, it is also more environmentally friendly and energy-saving, and is more conducive to reducing costs.

[0037] It should be noted that in the description of this embodiment, the orientation or positional relationship indicated by terms such as "front, back", "left, right", "inner, outer", "upper, lower", etc. are all based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. The terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

Claims

1. A range hood capable of preventing smoke from escaping through a gap in a smoke shield, comprising a smoke collecting hood (1) and a smoke shield (2), wherein the smoke collecting hood (1) is provided with an air inlet (1a), the smoke shield (2) is rotatably connected to the smoke collecting hood (1) for closing or opening the air inlet (1a), and when the smoke shield (2) is in a state of opening the air inlet (1a), a gap (X) is formed between the smoke shield (2) and the smoke collecting hood (1) for allowing smoke to escape, characterized in that: The smoke shielding plate (3) is provided on the smoke shielding plate (2), wherein the smoke shielding plate (3) at least partially protrudes from the side of the smoke shielding plate (2) near the rotating connection part. The smoke collecting hood (1) is also provided with a strip hole (1b) extending laterally and adapted to the smoke shielding plate (3). When the smoke shielding plate (2) is flipped to an open state, the smoke shielding plate (3) can partially extend into the strip hole (1b) and cover the gap (X) to prevent the escape of oil smoke. When the smoke shielding plate (2) is flipped from an open state to a closed state, the smoke shielding plate (3) can rotate synchronously with the smoke shielding plate (2) and can enter the interior of the smoke collecting hood (1) from the strip hole (1b).

2. The range hood capable of preventing smoke from escaping through the gap of the smoke baffle according to claim 1, characterized in that: The smoke shielding plate (3) comprises a middle section (3b), a mounting section (3a) and a connecting section (3c) respectively connected to both ends of the middle section (3b); the mounting section (3a) is mounted on the bottom of the smoke shield (2); when the smoke shield (2) is flipped to an open state, the connecting section (3c) extends into the strip hole (1b); when the smoke shield (2) is flipped to a closed state, the connecting section (3c) and the middle section (3b) are both built into the smoke collecting hood (1).

3. The range hood capable of preventing smoke from escaping through the gaps of the smoke baffle according to claim 2, characterized in that: The installation section (3a) and the connecting section (3c) are both formed in a bent shape at both ends of the middle section (3b) and each forms an angle, and the bending directions of the installation section (3a) and the connecting section (3c) are arranged in opposite directions, the angle a formed between the installation section (3a) and the middle section (3b) is 80° to 100°, and the angle b formed between the connecting section (3c) and the middle section (3b) is 100° to 120°.

4. The range hood capable of preventing smoke from escaping through the gaps of the smoke baffle according to claim 2, characterized in that: The rear end of the connecting section (3c) is also formed with a folded edge (3c1) parallel to the inner side wall of the edge of the strip hole (1b), and a flexible sealing strip (3d) is provided on the folded edge (3c1). When the smoke baffle (2) is flipped to an open state, the sealing strip (3d) can fit on the inner side wall of the edge of the strip hole (1b) to close the strip hole (1b).

5. The range hood capable of preventing smoke from escaping through the gaps of the smoke baffle according to claim 4, characterized in that: The inner side wall of the edge of the strip-shaped hole (1b) is also formed with a curling edge (1b1) for the sealing strip (3d) to fit in place. When the smoke baffle (2) is flipped over to an open state, the sealing strip (3d) can fit in place on the curling edge (1b1).

6. The range hood capable of preventing smoke from escaping through the gaps of the smoke baffle according to claim 5, characterized in that: A serrated groove (3d1) is also formed on the sealing strip (3d) in the area for fitting the curled edge (1b1). The serrated groove (3d1) enables the sealing strip (3d) to be more easily deformed and separated from the curled edge (1b1) when the smoke baffle (2) is turned over.

7. The range hood capable of preventing smoke from escaping through the gap of the smoke baffle according to any one of claims 1 to 6, characterized in that: The bottom of the smoke hood (1) is inclined from the front end to the rear end to form an inclined wall (1c) that is higher at the front and lower at the rear; the air inlet (1a), the strip hole (1b) and the smoke baffle (2) are all arranged on the inclined wall (1c); the strip hole (1b) is located above the air inlet (1a) and is arranged adjacent to it.

8. The range hood capable of preventing smoke from escaping through the gaps of the smoke shield according to claim 7, characterized in that: A partition plate (6) for isolating the air inlet (1a) and the strip-shaped hole (1b) is also provided in the smoke collecting hood (1).

9. The range hood capable of preventing smoke from escaping through the gaps of the smoke baffle according to claim 7, characterized in that: It also includes a hinge assembly (4) capable of hinge-connecting the smoke baffle (2) to the smoke hood (1), the hinge assembly (4) comprising a left hinge (4a) and a right hinge (4b) arranged at intervals, the first ends of the left hinge (4a) and the right hinge (4b) being connected to the bottom of the smoke baffle (2), and the second ends of the left hinge (4a) and the right hinge (4b) passing through the inclined wall (1c) and extending into the interior of the smoke hood (1), and the smoke hood (1) is also provided with a driving mechanism (5) capable of driving the left hinge (4a) and / or the right hinge (4b) to flip.

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