Range hood

Abstract

The utility model discloses a range hood belongs to the technical field of home appliances, to solve the problem of the multiple integral hinge of existing range hood easy to appear different shaft and cause auxiliary plate swing not smooth etc. and designs. The utility model discloses a range hood includes: first smoke deflector, second smoke deflector is set below first smoke deflector, and second smoke deflector can be with first smoke deflector in same plane or relative to first smoke deflector and set angle of inclination, and integral hinge is connected between first smoke deflector and second smoke deflector, and second smoke deflector can swing around first smoke deflector, and the length of integral hinge is greater than the length of first smoke deflector and / or second smoke deflector connection edge 1 / 2. The utility model discloses a range hood solves the problem that multiple integral hinge is easy to cause different shaft because of low installation accuracy and further causes auxiliary plate swing not smooth, and the requirement of low installation accuracy, and second smoke deflector can swing smoothly, and the connection between first smoke deflector and second smoke deflector is more stable and firm.

Description

Technical Field

[0001] This utility model relates to the field of home appliance technology, and in particular to range hoods. Background Technology

[0002] A range hood is a household appliance used to collect and exhaust cooking fumes from indoor spaces. It mainly consists of a casing, a fan, and a baffle plate. The casing has an air inlet, forming an air intake channel between the inlet and the fan. When the fan rotates, it creates negative pressure in the air intake channel, drawing in cooking fumes and then expelling them outdoors. When the range hood is working, the baffle plate is open, effectively trapping and reducing fume escape. When the range hood is not working, the baffle plate is closed, blocking the air inlet and preventing dust and other debris from entering the air intake channel. It also contributes to the range hood's more aesthetically pleasing appearance.

[0003] Currently, some smoke baffles include a main board and an auxiliary board that are hinged together. Both the main board and the auxiliary board can be opened at the same time for better smoke collection, which is suitable for situations with a large amount of oil fumes. Alternatively, only the auxiliary board located at the bottom can be opened, which consumes less energy and takes up less space, making it suitable for situations with a smaller amount of oil fumes.

[0004] To enable relative rotation between the main board and the auxiliary board, a hinge structure is installed at the connection point. The main board and the auxiliary board are respectively connected to two connecting pieces of the hinge structure. The shortcomings of existing smoke baffles include: the area of ​​the smoke baffle is usually large; to ensure a stable connection between the main board and the auxiliary board and smoother rotation, two to three hinges are typically installed axially between them. All hinges must be accurately installed in their designated positions. If any hinge is misaligned with the others, causing the board to not maintain a flat plane during rotation (deformation or warping), the auxiliary board will have difficulty rotating smoothly or may not be able to rotate at all, resulting in a poor user experience, high rework rate, and high processing costs. Utility Model Content

[0005] The purpose of this utility model is to propose a range hood that solves the problem that when multiple hinges are not aligned due to low installation precision, it affects the flatness of the auxiliary plate and the smoothness of rotation, resulting in a better user experience.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A range hood includes: a first smoke guide plate; a second smoke guide plate disposed below the first smoke guide plate, the second smoke guide plate being able to lie in the same plane as the first smoke guide plate or be inclined at an angle relative to the first smoke guide plate; and an integral hinge connected between the first smoke guide plate and the second smoke guide plate, the second smoke guide plate being able to swing around the first smoke guide plate; the length of the integral hinge is greater than 1 / 2 of the length of the connecting side of the first smoke guide plate and / or the second smoke guide plate.

[0008] In one preferred embodiment, the integrated hinge includes a first connector, a second connector, and a pivot. One of the first connector and the second connector is connected to the first smoke guide plate, and the other of the first connector and the second connector is connected to the second smoke guide plate. A first rolled edge is formed at the connecting edge of the first connector, and a second rolled edge is formed at the connecting edge of the second connector. The pivot is respectively inserted into the first rolled edge and the second rolled edge, and the first connector and the second connector can swing around the pivot.

[0009] In one preferred embodiment, the integrated hinge includes two pivots, one of the first rolled edge and the second rolled edge is located in the middle of the connecting edge, and the other of the first rolled edge and the second rolled edge is divided into two segments and located at both ends of the connecting edge, with each pivot passing through the first rolled edge and the second rolled edge at one end.

[0010] In one preferred embodiment, the rotating shaft includes a cylindrical shaft body with a positioning groove. A positioning element is provided on one of the first rolled edge and the second rolled edge. The positioning element is embedded in the positioning groove and can prevent the shaft body from moving axially.

[0011] In one preferred embodiment, a through hole is provided on one of the first rolled edge and the second rolled edge, and the edge of the through hole is bent toward the positioning groove to form the positioning member.

[0012] In one preferred embodiment, one of the first rolled edge and the second rolled edge is located in the middle of the connecting edge, and the through hole is formed on the first rolled edge or the second rolled edge located in the middle.

[0013] In one preferred embodiment, the integrated hinge includes two pivots, and through holes are respectively provided at both ends of the first or second rolled edge located in the middle. The positioning element formed by bending the edge of each through hole is embedded in the positioning groove of one of the pivots.

[0014] In one preferred embodiment, the positioning groove is disposed on the outer peripheral surface of the shaft body and is annular in the circumferential direction.

[0015] In one preferred embodiment, the end of the rotating shaft is provided with a limiting flange, the diameter of which is larger than the diameter of the rotating shaft, so as to prevent the rotating shaft from extending into the first rolled edge and the second rolled edge by a distance greater than a set value.

[0016] In one preferred embodiment, the distance between the first rolled edge and the connecting edge of the second connector is less than a set value, and the distance between the second rolled edge and the connecting edge of the first connector is less than a set value.

[0017] The range hood disclosed in this utility model connects the first and second smoke guide plates via a single integrated hinge. This solves the problem of misalignment caused by low installation precision when multiple hinges are used, which affects the flatness of the auxiliary plate and the smoothness of rotation. It has low installation precision requirements, and the second smoke guide plate can smoothly rotate around the first smoke guide plate, resulting in a better user experience. The length of the integrated hinge is greater than half the length of the connecting edge of the first and / or second smoke guide plates, ensuring a more stable and secure connection between the first and second smoke guide plates. This prevents radial wobbling during the rotation of the second smoke guide plate and prevents tilting or misalignment of the smoke guide plate, ensuring that the entire smoke guide plate remains on the same surface during operation. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of the range hood provided in a specific embodiment of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the smoke baffle of the range hood provided in a specific embodiment of the present utility model;

[0020] Figure 3 This is an exploded view of the integrated hinge provided in a specific embodiment of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the integrated hinge provided in a specific embodiment of this utility model;

[0022] Figure 5 yes Figure 4 A magnified view of a section at point A in the middle;

[0023] Figure 6 This is a schematic diagram of the structure of the rotating shaft provided in a specific embodiment of this utility model;

[0024] Figure 7 This is a cross-sectional view of the combined structure of the positioning element and the positioning groove provided in a specific embodiment of this utility model.

[0025] In the picture:

[0026] 1. First smoke guide plate; 2. Second smoke guide plate; 3. Integrated hinge; 31. First connector; 32. Second connector; 33. Rotating shaft; 100. Outer shell; 311. First rolled edge; 321. Second rolled edge; 322. Positioning component; 323. Through hole; 331. Shaft body; 332. Positioning groove; 333. Limiting flange. Detailed Implementation

[0027] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0028] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0032] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0033] This embodiment discloses a range hood, such as... Figure 1 and Figure 2 As shown, the range hood includes a housing 100, a first smoke guide plate 1, a second smoke guide plate 2, and an integrated hinge 3. The first smoke guide plate 1 is connected to the housing 100, and the second smoke guide plate 2 is connected to the lower part of the first smoke guide plate 1 via the integrated hinge 3. The second smoke guide plate 2 can be located in the same plane as the first smoke guide plate 1 or be tilted at an angle relative to the first smoke guide plate 1. The integrated hinge 3 refers to the hinge being a single, integral structure, but does not mean that the integrated hinge 3 is formed in one piece.

[0034] Unlike existing range hoods where the main plate 1 and auxiliary plate are connected by two to three integrated hinges, the range hood in this embodiment is connected to the first smoke guide plate 1 and the second smoke guide plate 2 by only an integrated hinge 3. This solves the problem that multiple hinges may misalign due to low installation precision, thus affecting the flatness of the auxiliary plate and the smoothness of rotation. The installation precision requirement is low. As long as the integrated hinge 3 can connect the first smoke guide plate 1 and the second smoke guide plate 2 together, the second smoke guide plate 2 can rotate smoothly around the first smoke guide plate 1, resulting in a better user experience.

[0035] The length of the integrated hinge 3 is greater than half the length of the connecting edge of the first smoke guide plate 1 and / or the second smoke guide plate 2. This length of integrated hinge 3 ensures a more stable and secure connection between the first smoke guide plate 1 and the second smoke guide plate 2, and prevents radial wobbling when the second smoke guide plate 2 rotates around the axis of the integrated hinge 3. This solves the problem of existing hinges being too short, resulting in too many gaps between the first smoke guide plate 1 and the second smoke guide plate 2, which could lead to warping or misalignment. The flatness of the first smoke guide plate 1 and the second smoke guide plate 2 is also improved. The specific length of the integrated hinge 3 is not limited, as long as it can stably connect the first smoke guide plate 1 and the second smoke guide plate 2, does not affect the rotation of the second smoke guide plate 2 around the first smoke guide plate 1, does not abut against surrounding objects, and is easy to install.

[0036] like Figures 2 to 4 As shown, the integrated hinge 3 includes a first connector 31, a second connector 32, and a pivot 33. One of the first connector 31 and the second connector 32 is connected to the first smoke guide plate 1, and the other of the first connector 31 and the second connector 32 is connected to the second smoke guide plate 2.

[0037] A first rolled edge 311 is formed at the connecting edge of the first connector 31, and a second rolled edge 321 is formed at the connecting edge of the second connector 32. The first rolled edge 311 and the second rolled edge 321 are staggered. When the first connector 31 and the second connector 32 are connected, the axis of the first rolled edge 311 and the axis of the second rolled edge 321 are both located on the same straight line. The pivot 33 is respectively inserted into the first rolled edge 311 and the second rolled edge 321 to ensure that the first connector 31 and the second connector 32 can rotate smoothly around the axis of the pivot 33.

[0038] To reduce the probability of oil fumes escaping from the integrated hinge 3, in this embodiment, the distance between the connecting edge of the first rolled edge 311 and the connecting edge of the second connecting member 32 is less than a set value, and the distance between the connecting edge of the second rolled edge 321 and the connecting edge of the first connecting member 31 is also less than a set value. That is, the first connecting member 31 and the second connecting member 32 are close enough that the gap between them is very small. The oil fumes trapped by the first smoke guide plate 1 and / or the second smoke guide plate 2 are difficult to escape from the gap between the first connecting member 31 and the second connecting member 32, resulting in better and more efficient oil fume collection and a better user experience.

[0039] The length of this integrated hinge 3 far exceeds that of existing ordinary integrated hinges, making the processing of such a long pivot 33 technically challenging and costly. In this embodiment, the integrated hinge 3 includes two pivots 33. One of the first rolled edge 311 and the second rolled edge 321 is located in the middle of the connecting edge, and the other of the first rolled edge 311 and the second rolled edge 321 is divided into two segments located at opposite ends of the connecting edge. Each pivot 33 passes through one of the first rolled edge 311 and the second rolled edge 321. Replacing a long shaft with two short pivots 33 reduces processing difficulty and cost, and increases installation efficiency. As long as the first rolled edge 311 and the second rolled edge 321 are coaxial, the two pivots 33 can also be coaxial, without hindering the relative rotation of the first connecting member 31 and the second connecting member 32.

[0040] Based on the above structure, such as Figure 6 and Figure 7 As shown, the rotating shaft 33 includes a cylindrical shaft body 331. The shaft body 331 is provided with a positioning groove 332. A positioning element 322 is provided on one of the first rolled edge 311 and the second rolled edge 321. The positioning element 322 is embedded in the positioning groove 332, which can prevent the shaft body 331 from moving axially and prevent the shaft body 331 from falling out of the first rolled edge 311 and the second rolled edge 321 after the second smoke guide plate 2 swings multiple times relative to the first smoke guide plate 1, making it safer to use.

[0041] The specific structure and formation method of the positioning element 322 are not limited. In this embodiment, a through hole 323 is provided on one of the first rolled edge 311 and the second rolled edge 321. The edge of the through hole 323 is bent toward the positioning groove 332 to form the positioning element 322. The formation method of this positioning element 322 is similar to riveting. The process is mature, the operation is simple and easy to implement, and it can play a good limiting role for the shaft body 331.

[0042] The specific location of the through hole 323 is not limited; its function is the same whether it is located on the first rolled edge 311 or the second rolled edge 321. In this embodiment, one of the first rolled edge 311 and the second rolled edge 321 is located in the middle of the connecting edge. The through hole 323 is formed on either the first rolled edge 311 or the second rolled edge 321 located in the middle, which facilitates processing and allows the first connecting member 31, the second connecting member 32, and the rotating shaft 33 to be firmly connected together.

[0043] In this embodiment, a second rolled edge 321 is formed in the middle of the connecting edge of the second connector 32, and first rolled edges 311 are formed at both ends of the connecting edge of the first connector 31. Through holes 323 are respectively opened at both ends of the second rolled edge 321. During installation, the second rolled edge 321 is inserted between the two sections of the first rolled edge 311. A rotating shaft 33 passes through the first rolled edge 311 from one end and is inserted into one end of the second rolled edge 321. Another rotating shaft 33 passes through the first rolled edge 311 from the other end and is inserted into the other end of the second rolled edge 321. The positioning member 322 formed by bending the edge of each through hole 323 is embedded in the positioning groove 332 of a rotating shaft 33. The rotating shaft 33 will not come out of the second rolled edge 321, and the connection between the first connector 31 and the second connector 32 is more stable.

[0044] The specific shape of the positioning groove 332 is not limited, as long as it can restrict the axial movement of the rotating shaft 33 by the positioning member 322. In this embodiment, the positioning groove 332 is provided on the outer peripheral surface of the shaft body 331 and is annular in the circumferential direction. During the relative swinging process of the first connecting member 31 and the second connecting member 32, the positioning member 322 can always be locked in the positioning groove 332 to ensure that the rotating shaft 33 will not come out, and the first connecting member 31 and the second connecting member 32 can swing smoothly relative to each other.

[0045] Based on the above structure, such as Figure 6 As shown, a limiting flange 333 is provided at the end of the rotating shaft 33. The diameter of the limiting flange 333 is larger than the diameter of the rotating shaft 33. After assembly, the limiting flange 333 can abut against the outer end of the first rolled edge 311 or the second rolled edge 321 located on the outside, thereby preventing the rotating shaft 33 from extending into the first rolled edge 311 and the second rolled edge 321 by a distance greater than a set value. During disassembly, the limiting flange 333 can be used as a force application point. By grasping the limiting flange 333 and dragging it outward, the rotating shaft 33 can be pulled out from the first rolled edge 311 and the second rolled edge 321, making disassembly and assembly more convenient.

[0046] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A range hood, characterized in that, include: First smoke guide plate (1); The second smoke guide plate (2) is disposed below the first smoke guide plate (1), and the second smoke guide plate (2) can be located in the same plane as the first smoke guide plate (1) or be inclined at an angle relative to the first smoke guide plate (1); and, An integral hinge (3) is connected between the first smoke guide plate (1) and the second smoke guide plate (2), and the second smoke guide plate (2) can swing around the first smoke guide plate (1); the length of the integral hinge (3) is greater than 1 / 2 of the length of the connecting side of the first smoke guide plate (1) and / or the second smoke guide plate (2).

2. The range hood according to claim 1, characterized in that, The integrated hinge (3) includes a first connector (31), a second connector (32), and a pivot (33). One of the first connector (31) and the second connector (32) is connected to the first smoke guide plate (1), and the other of the first connector (31) and the second connector (32) is connected to the second smoke guide plate (2). A first rolled edge (311) is formed at the connecting edge of the first connector (31), and a second rolled edge (321) is formed at the connecting edge of the second connector (32). The pivot (33) is respectively inserted into the first rolled edge (311) and the second rolled edge (321). The first connector (31) and the second connector (32) can swing around the pivot (33).

3. The range hood according to claim 2, characterized in that, The integrated hinge (3) includes two pivots (33), one of the first rolled edge (311) and the second rolled edge (321) is located in the middle of the connecting edge, and the other of the first rolled edge (311) and the second rolled edge (321) is divided into two segments and located at both ends of the connecting edge, and each pivot (33) passes through the first rolled edge (311) and the second rolled edge (321) at one end.

4. The range hood according to claim 2, characterized in that, The rotating shaft (33) includes a columnar shaft body (331), on which a positioning groove (332) is provided. A positioning element (322) is provided on one of the first rolled edge (311) and the second rolled edge (321). The positioning element (322) is embedded in the positioning groove (332) and can prevent the shaft body (331) from moving axially.

5. The range hood according to claim 4, characterized in that, One of the first rolled edge (311) and the second rolled edge (321) has a through hole (323), and the edge of the through hole (323) is bent toward the positioning groove (332) to form the positioning member (322).

6. The range hood according to claim 5, characterized in that, One of the first rolled edge (311) and the second rolled edge (321) is located in the middle of the connecting edge, and the through hole (323) is opened on the first rolled edge (311) or the second rolled edge (321) located in the middle.

7. The range hood according to claim 6, characterized in that, The integrated hinge (3) includes two pivots (33). The first rolled edge (311) or the second rolled edge (321) located in the middle is provided with through holes (323) at both ends. The positioning member (322) formed by bending the edge of each through hole (323) is embedded in the positioning groove (332) of one of the pivots (33).

8. The range hood according to claim 4, characterized in that, The positioning groove (332) is provided on the outer peripheral surface of the shaft body (331) and is annular in the circumferential direction.

9. The range hood according to any one of claims 2 to 8, characterized in that, The end of the rotating shaft (33) is provided with a limiting protrusion (333), the diameter of which is greater than the diameter of the rotating shaft (33) to prevent the rotating shaft (33) from extending into the first rolled edge (311) and the second rolled edge (321) by a distance greater than a set value.

10. The range hood according to any one of claims 2 to 8, characterized in that, The distance between the first rolled edge (311) and the connecting edge of the second connector (32) is less than a set value, and the distance between the second rolled edge (321) and the connecting edge of the first connector (31) is less than a set value.

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