A fume hood and a range hood

Abstract

The utility model discloses a fume collecting hood, including the casing with the fume inlet of front face, the fender of rotation setting on the casing, the along edge of the roof and the front plate of casing intersection is provided with at least one window, the part of in -house in corresponding window is provided with built -in support board, built -in support board includes the support roof plate, support front plate that one body connects and respectively sticks fixed in roof, front plate, fender and built -in support board are rotated and are connected by rotary hinge, rotary hinge includes the hinge fixed plate and hinge turning plate of rotation connection, and hinge fixed plate stretches into window and built -in support board fixed connection, and hinge turning plate and fender fixed connection. The utility model discloses still disclosed the range hood with this fume collecting hood. The utility model has the beneficial effect in that, avoid the accumulation of oil dirt on the top, and have better structural strength.

Description

Technical Field

[0001] This utility model relates to a smoke collection hood and a range hood, and is a structural optimization design of the rotating connection part between the outer shell of the smoke collection hood and the smoke baffle. Background Technology

[0002] The range hood's smoke collection hood has a rotatable smoke baffle at the smoke inlet on its front. By rotating the baffle, the smoke inlet can be closed when not in use and opened when in use to prevent fumes from escaping upwards. The baffle is rotatably connected to the intersection of the front and top panels of the casing via a rotating hinge. In existing technology, considering the stress and structural strength of the rotating connection point during the baffle's rotation, the top panel of the casing has upward-protruding reinforcing ribs at the corresponding rotating connection point. However, the upward-protruding structure of the reinforcing ribs easily accumulates grease and dust and is difficult to clean. Utility Model Content

[0003] The purpose of this invention is to provide a smoke hood and a range hood that prevents oil stains from accumulating on the top and has good structural strength.

[0004] This utility model is achieved through the following technical solution.

[0005] A smoke hood includes a housing with a smoke inlet on the front and a smoke baffle rotatably mounted on the housing. At least one window is provided along the edge where the top plate and the front plate of the housing intersect. An internal support plate is provided inside the housing at the location corresponding to the window. The internal support plate includes a support top plate and a support front plate integrally connected and respectively attached and fixed to the top plate and the front plate. The smoke baffle and the internal support plate are rotatably connected by a rotating hinge. The rotating hinge includes a hinge fixing plate and a hinge rotating plate rotatably connected. The hinge fixing plate extends into the window and is fixedly connected to the internal support plate. The hinge rotating plate is fixedly connected to the smoke baffle.

[0006] As a further improvement of this utility model, the built-in bracket plate has a slot at the intersection of the bracket top plate and the bracket front plate, which allows the hinge fixing plate to pass through. The hinge fixing plate is attached to the bottom surface of the bracket top plate and fixedly connected to it.

[0007] As a further improvement of this utility model, the top plate of the housing is provided with at least one first connecting hole at the position corresponding to the built-in support plate, and the support top plate and the hinge fixing plate are respectively provided with a relief groove and a second connecting hole at the positions corresponding to the first connecting hole. The top plate of the housing, the support top plate and the hinge fixing plate are fixedly connected by fasteners passing through the first connecting hole and the second connecting hole.

[0008] As a further improvement of this utility model, the first connecting hole is configured as a countersunk hole.

[0009] As a further improvement of this utility model, multiple mutually spaced connection points are set on the side of the bracket top plate away from the window, and the connection points of the bracket top plate are fixedly connected to the top plate of the shell.

[0010] As a further improvement of this utility model, the connection distribution points of the bracket top plate and the top plate of the shell are fixedly connected by fasteners or by positioning welding.

[0011] As a further improvement of this utility model, the front plate of the bracket is provided with at least one third connecting hole, and the front plate of the housing is provided with a fourth connecting hole at the corresponding position of the third connecting hole. The front plate of the bracket and the top plate of the housing are fixedly connected by fasteners passing through the third connecting hole and the fourth connecting hole.

[0012] As a further improvement of this utility model, the top plate of the shell is horizontally arranged, and the front plate of the shell is inclined forward from bottom to top.

[0013] As a further improvement of this utility model, the smoke baffle is provided with smoke gathering plates on both sides, and the front plate of the housing is provided with a through groove at the corresponding position of the smoke gathering plate to allow the smoke gathering plate to pass through.

[0014] A range hood includes a smoke collection hood and a fan box equipped with a fan, the fan box being connected to the top of the housing.

[0015] The beneficial effects of this utility model are:

[0016] The built-in support plate serves as a supporting structure within the housing, effectively enhancing the structural strength of the housing at the location where the rotating smoke baffle is installed, thus avoiding the need for protruding reinforcing ribs on the top plate as in traditional solutions. Because the built-in support plate is internal, the top plate of the housing remains completely flat. This not only significantly reduces the accumulation points of oil and dust, making cleaning more convenient and efficient, but also improves the simplicity and aesthetics of the overall appearance. At the same time, it ensures the stability and durability of the smoke baffle during rotation, reducing the risk of deformation or damage due to structural weakness. Attached Figure Description

[0017] The preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings to help understand the purpose and advantages of this utility model, wherein:

[0018] Figure 1 This is a schematic diagram of the smoke hood in Implementation Method 1;

[0019] Figure 2 This is a magnified view of the shell at the window in Implementation Case 1;

[0020] Figure 3 This is a partial cross-sectional view of the smoke hood at the window in Embodiment 1;

[0021] Figure 4This is a schematic diagram of the built-in support plate and rotating hinge in Embodiment 1;

[0022] Figure 5 This is a schematic diagram of the built-in support plate in Implementation Method 1;

[0023] Figure 6 This is a schematic diagram of the range hood in Implementation Method 2. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0025] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the construction shown in the accompanying drawings. The terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. These are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive.

[0026] Implementation method 1:

[0027] This embodiment illustrates a fume hood that can prevent oil buildup at the top, see reference. Figures 1-5 It includes a housing 1 with a smoke inlet on the front and a smoke baffle 2 rotatably mounted on the housing 1. At least one window 13 is provided along the edge where the top plate 11 and the front plate 12 of the housing 1 intersect. An internal support plate 3 is provided in the housing 1 at the position corresponding to the window 13. The internal support plate 3 includes a support top plate 31 and a support front plate 32 that are integrally connected and respectively attached and fixed to the top plate 11 and the front plate 12. The smoke baffle 2 and the internal support plate 3 are rotatably connected by a rotating hinge 4. The rotating hinge 4 includes a hinge fixing plate 41 and a hinge rotating plate 42 that are rotatably connected. The hinge fixing plate 41 extends into the window 13 and is fixedly connected to the internal support plate 3. The hinge rotating plate 42 is fixedly connected to the smoke baffle 2. With this design, the built-in support plate 3 serves as a supporting structure within the housing 1, effectively enhancing the structural strength of the housing 1 at the location where the rotating connection smoke baffle 2 is set, thus avoiding the need for protruding reinforcing ribs on the top plate 11 in traditional solutions. Since the built-in support plate 3 is internal, the top plate 11 of the housing 1 remains completely flat, which not only significantly reduces the accumulation points of oil and dust, making cleaning more convenient and efficient, but also improves the simplicity and aesthetics of the overall appearance. At the same time, it ensures the stability and durability of the smoke baffle 2 during rotation, reducing the risk of deformation or damage due to structural weakness.

[0028] In this embodiment, based on considerations of hinge installation and structural optimization, the built-in support plate 3 has a slot 33 at the intersection of the top plate 31 and the front plate 32 of the support, allowing the hinge fixing plate 41 to pass through. The hinge fixing plate 41 fits against the bottom surface of the top plate 31 and is fixedly connected to it. Specifically, the slot 33 is a precisely cut opening, the size and position of which match the hinge fixing plate 41, ensuring that the hinge fixing plate 41 can smoothly pass through the window 13 and firmly fit against the bottom surface of the top plate 31. In this way, the slot 33 effectively avoids the hinge fixing plate 41, allowing the hinge fixing plate 41 to pass through the window 13 and the slot 33 in sequence and form a tight connection with the top plate 31. This not only simplifies the assembly process and reduces installation errors, but also enhances the rigidity and reliability of the overall structure, avoiding loosening or abnormal noise caused by connection gaps when the smoke baffle 2 rotates.

[0029] In this embodiment, to further improve the connection strength and structural simplification, the top plate 11 of the housing 1 is provided with at least one first connecting hole h1 at the location corresponding to the built-in support plate 3. The support top plate 31 and the hinge fixing plate 41 are respectively provided with clearance grooves 311 and second connecting holes h2 at the locations corresponding to the first connecting holes h1. The top plate 11 of the housing 1, the support top plate 31, and the hinge fixing plate 41 are fixedly connected by fasteners passing through the first connecting holes h1 and the second connecting holes h2. The clearance groove 311 is designed with a U-shaped structure and is connected to the side of the slot 33 to ensure that the fasteners pass through without obstruction. The fasteners can be bolts or screws, and the tight fixation of the three is achieved through precise alignment. This connection method not only firmly integrates the top plate 11 of the housing 1, the top plate 31 of the bracket, and the hinge fixing plate 41 together by sharing connection points, ensuring high load-bearing capacity under frequent rotation of the smoke baffle 2, but also greatly simplifies the overall structure, reduces the number of parts and assembly steps, lowers production costs and maintenance difficulty, and avoids stress concentration or fatigue failure caused by multi-point connection.

[0030] In this embodiment, considering the advantages of countersunk hole connections, the first connection hole h1 is designed as a countersunk hole. The countersunk hole structure includes a tapered or stepped recess, allowing the fastener head to be fully embedded within it, forming a flat surface. With the countersunk hole design, the fastener head will not protrude from the surface of the top plate 11 during connection, which effectively reduces the accumulation of oil and dust, facilitating daily cleaning; at the same time, the countersunk hole provides a larger contact area and stress distribution, enhancing the tensile strength and stability of the connection, preventing the fastener from loosening or falling off during long-term use, and improving the overall durability and safety of the device.

[0031] In this embodiment, to further improve the load distribution and structural strength of the smoke baffle 2 during rotation, multiple spaced connection points 312 are provided on the side of the support top plate 31 away from the window 13, and the connection points 312 of the support top plate 31 are fixedly connected to the top plate 11 of the housing 1. The connection points 312 are arranged in a uniformly distributed array or dotted structure, covering the key areas of the edge of the support top plate 31. Since the second connection hole h2 of the support top plate 31 bears the main load when the smoke baffle 2 is closed and rotating, and the side of the support top plate 31 away from the window 13 becomes the main load-bearing part when it is open and rotating, the multiple spaced connection points 312 can more evenly distribute the dynamic force and torque generated during rotation, effectively cope with impact and vibration, reduce the risk of deformation or cracking caused by local stress concentration, thereby improving the smoothness of the operation of the smoke baffle 2 and the service life of the structure.

[0032] In this embodiment, based on considerations of connection feasibility and optimization, the connection distribution points 312 of the bracket top plate 31 and the top plate 11 of the shell 1 are fixedly connected by fasteners or by positioning welding, with positioning welding being the preferred fixed connection scheme. In specific operation, spot welding is used. Positioning welding achieves material bonding through local high-temperature melting, while spot welding forms multiple small weld points at the connection distribution points 312, ensuring a quick and strong connection. This design not only provides two feasible solutions—fasteners and positioning welding—to meet the needs of different production environments, but also reduces the use of additional parts such as bolts or nuts through the preferred spot welding solution, simplifying the assembly process and reducing costs. At the same time, the strong connection points formed by spot welding effectively resist the repeated loads when the smoke baffle 2 rotates, enhancing the overall integrity and fatigue resistance of the structure and avoiding loosening or separation problems.

[0033] In this embodiment, to further improve the connection strength between the built-in support plate 3 and the housing 1, the front plate 32 of the support is provided with at least one third connecting hole h3, and the front plate 12 of the housing 1 is provided with a fourth connecting hole h4 at the corresponding position of the third connecting hole h3. The front plate 32 of the support and the front plate 12 of the housing 1 are fixedly connected by fasteners passing through the third connecting hole h3 and the fourth connecting hole h4. The fasteners can be screws or rivets, and a tight connection between the front plate 32 of the support and the front plate 12 of the housing 1 is achieved through precise alignment. Through the corresponding arrangement of the third connecting hole h3 and the fourth connecting hole h4, this connection method significantly enhances the anchoring effect between the built-in support plate 3 and the housing 1, especially under the lateral force generated by the rotation of the smoke baffle 2, ensuring that there is no relative displacement between the front plate 32 of the support and the front plate 12 of the housing 1, thereby improving the rigidity and stability of the overall structure, reducing vibration and noise, and extending the service life of the device.

[0034] In this embodiment, based on considerations of optimizing the shape of the housing 1, the top plate 11 of the housing 1 is horizontally positioned, and the front plate 12 of the housing 1 is inclined forward from bottom to top. This geometric layout forms a sloped surface of the front plate 12 at a certain angle, usually an acute angle with the horizontal plane, which facilitates guiding the oil fumes to the smoke inlet; the horizontally positioned top plate 11 provides a stable supporting foundation. The inclined design not only optimizes aerodynamic performance and reduces oil fume escape, but also enhances the coordination of the smoke baffle 2 during rotation, avoiding interference or wear caused by mismatched angles, and improving the overall efficiency and user-friendliness of the device.

[0035] In this embodiment, to prevent lateral escape of oil fumes, smoke-collecting plates 21 are provided on both sides of the smoke baffle 2. The front plate 12 of the housing 1 has a through groove corresponding to the smoke-collecting plate 21, allowing the smoke-collecting plate 21 to pass through. The smoke-collecting plate 21 is a laterally extending plate structure that moves in and out through the through groove when the smoke baffle 2 rotates. The size of the through groove is precisely matched with the smoke-collecting plate 21. With the smoke-collecting plate 21 in the open state, it can effectively block the oil fumes from spreading to both sides, forming a closed smoke collection area. This not only significantly reduces the problem of lateral escape of oil fumes and improves the suction efficiency, but also ensures smooth and unobstructed rotation of the smoke baffle 2 through the through groove design, avoiding jamming or wear, and improving user experience and device reliability.

[0036] Implementation Method 2:

[0037] This embodiment illustrates a range hood, see reference Figure 6 and combined Figure 1 The range hood includes a smoke collection hood and a fan housing 5 housing a fan. As shown in Embodiment 1, the smoke collection hood is attached to the top of the housing 1. The fan housing 5 is fixed to the top plate 11 of the housing 1 by flanges or bolts. The fan is integrated into the housing, forming an integrated structure with the smoke collection hood. This design fully integrates all the technical features and effects of the aforementioned smoke collection hood, such as the enhanced structural strength provided by the built-in support plate 3, the flat top plate 11 preventing oil accumulation, and the smoke collection plate 21 preventing oil fume escape. This achieves high-efficiency oil fume capture and purification performance for the entire range hood, while simplifying maintenance and installation, and enhancing the product's market competitiveness.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent substitutions for some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A smoke collection hood, characterized in that, The device includes a housing (1) with a smoke inlet on the front and a smoke baffle (2) rotatably mounted on the housing (1). At least one window (13) is provided along the edge where the top plate (11) and the front plate (12) of the housing (1) intersect. An internal support plate (3) is provided in the housing (1) at the position corresponding to the window (13). The internal support plate (3) includes a support top plate (31) and a support front plate (32) integrally connected and respectively attached to the top plate (11) and the front plate (12). The smoke baffle (2) and the internal support plate (3) are rotatably connected by a rotating hinge (4). The rotating hinge (4) includes a hinge fixing plate (41) and a hinge rotating plate (42) rotatably connected. The hinge fixing plate (41) extends into the window (13) and is fixedly connected to the internal support plate (3). The hinge rotating plate (42) is fixedly connected to the smoke baffle (2).

2. The smoke collection hood according to claim 1, characterized in that, The built-in support plate (3) has a slot (33) at the intersection of the top plate (31) of the support and the front plate (32) of the support, which allows the hinge fixing plate (41) to pass through. The hinge fixing plate (41) is attached to the bottom surface of the top plate (31) of the support and is fixedly connected to it.

3. The smoke collection hood according to claim 2, characterized in that, The top plate (11) of the housing (1) is provided with at least one first connecting hole (h1) at the position corresponding to the built-in support plate (3). The support top plate (31) and the hinge fixing plate (41) are respectively provided with a relief groove (311) and a second connecting hole (h2) at the positions corresponding to the first connecting hole (h1). The top plate (11), the support top plate (31) and the hinge fixing plate (41) of the housing (1) are fixedly connected by fasteners passing through the first connecting hole (h1) and the second connecting hole (h2).

4. The smoke collection hood according to claim 3, characterized in that, The first connecting hole (h1) is configured as a countersunk hole.

5. The smoke collection hood according to claim 3, characterized in that, The top plate (31) of the bracket is provided with a plurality of mutually spaced connection distribution points (312) on the side away from the window (13), and the connection distribution points (312) of the top plate (31) of the bracket are fixedly connected to the top plate (11) of the housing (1).

6. The smoke collection hood according to claim 5, characterized in that, The connection distribution points (312) of the top plate (31) of the bracket and the top plate (11) of the housing (1) are fixedly connected by fasteners or by positioning welding.

7. The smoke collection hood according to claim 1, characterized in that, The front plate (32) of the bracket is provided with at least one third connection hole (h3), and the front plate (12) of the housing (1) is provided with a fourth connection hole (h4) at the location corresponding to the third connection hole (h3). The front plate (32) of the bracket and the top plate (11) of the housing (1) are fixedly connected by fasteners passing through the third connection hole (h3) and the fourth connection hole (h4).

8. The smoke hood according to any one of claims 1-7, characterized in that, The top plate (11) of the housing (1) is horizontally arranged, and the front plate (12) of the housing (1) is inclined forward from bottom to top.

9. The smoke hood according to any one of claims 1-7, characterized in that, The smoke baffle (2) has smoke gathering plates (21) on both sides, and the front plate (12) of the housing (1) has a through groove (121) at the position corresponding to the smoke gathering plate (21) to allow the smoke gathering plate (21) to pass through.

10. A range hood, characterized in that, The smoke collection hood includes any one of claims 1-9 and a fan box (5) equipped with a fan, the fan box (5) being connected to the top of the housing (1).

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