Range hood

Abstract

The utility model relates to the technical field of kitchen utensils, in particular to a range hood. Comprising a range hood body, a maintenance cover plate and an air outlet connector. The range hood body is provided with an air collecting box which is provided with an air outlet. The maintenance cover plate is arranged at the top of the range hood main body and is arranged around the air collecting box, easy-to-disassemble plates are arranged on two side plates, oppositely arranged left and right, of the maintenance cover plate, the easy-to-disassemble plates are intermittently connected with the side plates of the maintenance cover plate, and a notch can be formed in the corresponding side of the maintenance cover plate by disassembling the easy-to-disassemble plate on one side plate; the air outlet connector comprises an air inlet cavity and an air exhaust cavity, the air inlet cavity is communicated with the air exhaust cavity, the air inlet cavity is provided with an air inlet, the air inlet is connected with the air outlet, the air exhaust cavity is provided with an air exhaust opening, the height of the bottom face of the air exhaust cavity is equal to that of the bottom face of the air inlet cavity, and the air exhaust cavity extends out of the side plate on the corresponding side of the maintenance cover plate through the notch. The range hood aims at solving the problem that the installation range of an existing range hood is limited by the height of a kitchen, so that the range hood is not smooth in oil smoke discharge.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, in particular to a range hood. Background Art

[0002] Hoods usually refer to range hoods in the kitchen, also known as range hoods, range hoods or exhaust hoods. Hoods are kitchen appliances used to absorb and remove oil smoke, steam, smoke and odors generated during cooking. Hoods are mainly installed above kitchen stoves. Hoods can effectively reduce oil fume pollution in the kitchen, keep the kitchen air fresh, and protect the health of cooks.

[0003] At present, after the oil smoke in the air collecting chamber of the existing range hood is discharged from the air collecting chamber, it enters the external exhaust duct through the air outlet joint. The existing air outlet joint is installed at the top of the air collecting chamber, so that a larger space is required for installing the range hood. When the user's kitchen is on a low floor, the installation range of the range hood is limited by the height of the kitchen. The exhaust duct needs to be bent at a certain angle, and the oil smoke is easily retained in the bent exhaust duct, which makes the range hood discharge the oil smoke unsmooth. Utility Model Content

[0004] The utility model provides a range hood to solve the problem that the installation range of the existing range hood is limited by the height of the kitchen, resulting in the range hood not discharging oil smoke smoothly.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: a range hood, comprising:

[0006] The range hood body has an air collecting box, and the air collecting box is provided with an air outlet;

[0007] A maintenance cover plate, which is arranged on the top of the range hood body and around the air collecting box, and two side plates of the maintenance cover plate which are arranged opposite to each other on the left and right sides are provided with easily removable plates, and the easily removable plates are intermittently connected to the side plates of the maintenance cover plate. By removing the easily removable plate on one side plate, a gap can be formed on the corresponding side of the maintenance cover plate;

[0008] An air outlet joint comprises an air inlet cavity and an air exhaust cavity, the air inlet cavity is communicated with the air exhaust cavity, the air inlet cavity has an air inlet, the air inlet is connected with the air outlet, the air exhaust cavity has an air exhaust cavity, the bottom surface height of the air exhaust cavity is lower than the bottom surface height of the air inlet cavity, and the air exhaust cavity extends through the notch to the outside of the side panel on the corresponding side of the maintenance cover.

[0009] According to one embodiment of the utility model, the plane on which the air inlet is provided on the air inlet cavity is perpendicular to the plane on which the air outlet is provided on the air exhaust cavity, and the plane connecting the air outlet end of the air exhaust cavity and the air inlet cavity is parallel to the plane where the air outlet is located.

[0010] According to one embodiment of the utility model, the air inlet is arranged on the bottom surface of the air inlet cavity, the air outlet is arranged on the side of the exhaust cavity away from the air inlet cavity, and the plane connecting the exhaust cavity and the air outlet end of the air inlet cavity is parallel to the plane where the air outlet is located.

[0011] According to one embodiment of the utility model, the top surface of the air inlet cavity is formed by extending the top surface of the exhaust cavity, and the side surface of the air inlet cavity away from the exhaust cavity is arc-shaped, and the arc-shaped side surface is tangent to the top surface of the exhaust cavity at the connection between the two.

[0012] According to one embodiment of the utility model, a guide plate is provided in the air inlet cavity, and the guide plate is arc-shaped, with one end facing the air inlet and the other end facing the air outlet of the air inlet cavity.

[0013] According to an embodiment of the present utility model, the curvature of the curved side surface is adapted to the curvature of the guide plate.

[0014] According to one embodiment of the utility model, the lowest point of the air outlet end of the air inlet cavity is higher than the bottom surface of the air exhaust cavity, and the bottom surface of the air exhaust cavity forms an oil collecting surface.

[0015] According to one embodiment of the utility model, an oil drain hole is provided on the oil collecting surface, and the oil drain hole is connected to an oil drain valve.

[0016] According to one embodiment of the utility model, an oil drain hole is provided on the oil collecting surface, and an oil drain pipe is connected to the oil drain hole, and the oil drain end of the oil drain pipe extends into the air collecting box.

[0017] According to one embodiment of the utility model, a connecting hole is provided on the side wall surface of the air collecting box, and an oil drain joint extends outward from the connecting hole and protrudes from the side wall of the air collecting box. The oil discharged from the oil drain pipe enters the air collecting box through the oil drain joint and flows along the inner wall of the air collecting box.

[0018] Compared with the prior art, the smoke exhaust fan of the utility model has at least the following advantages:

[0019] The utility model provides a range hood, through the arrangement of the range hood body, the maintenance cover and the air outlet joint, when the user installs or removes the air outlet joint, the user installs or removes the air outlet joint at the notch on the corresponding side of the maintenance cover, thereby reducing the installation height of the air outlet joint. At the same time, the maintenance cover can also support the air outlet joint; by quickly removing the easy-to-remove plate on one side of the maintenance cover, it is also convenient for the user to clean or replace the air outlet joint. Moreover, after the air outlet joint is installed at the notch, when the user uses the range hood, the oil smoke is discharged from the air outlet of the air collecting box into the air inlet chamber, and the oil smoke in the air inlet chamber enters the exhaust chamber after passing through the air inlet chamber, and the oil liquid formed after the oil smoke in the exhaust chamber condenses flows in the exhaust chamber, thereby preventing the oil liquid from flowing back into the air inlet chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation of the utility model, the following will briefly introduce the drawings required for use in the specific implementation. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0021] Figure 1 The utility model is a structural explosion diagram of a range hood.

[0022] Figure 2 The utility model is a schematic diagram of the structure of an air outlet joint in a range hood.

[0023] Figure 3 The utility model is a cross-sectional view of a range hood having an oil drain pipe.

[0024] Figure 4 The utility model is a cross-sectional view of a range hood having an oil drain valve.

[0025] Reference numerals:

[0026] Hood body 1, air collecting box 11, air outlet 111, oil drain joint 112, maintenance cover 2, easily removable plate 21, air outlet joint 3, air inlet chamber 31, air inlet 311, guide plate 312, air exhaust chamber 32, air exhaust port 321, oil drain hole 322, oil drain valve 4, oil drain pipe 5. DETAILED DESCRIPTION

[0027] The following will disclose multiple embodiments of the present invention with drawings. For the purpose of clear description, many practical details will be described together in the following description. However, it should be understood that these practical details should not be used to limit the present invention. In other words, in some embodiments of the present invention, these practical details are not necessary. In addition, in order to simplify the drawings, some conventional structures and components will be depicted in a simple schematic manner in the drawings.

[0028] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0029] In addition, in the present utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present utility model. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0030] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings:

[0031] See also Figures 1 to 4 The utility model provides a range hood, comprising a range hood body 1, a maintenance cover 2 and an air outlet joint 3.

[0032] The hood body 1 has an air collecting box 11, which is provided with an air outlet 111. In this embodiment, when the user is using the hood, the oil smoke enters the air collecting box 11 of the hood body 1 from the air inlet of the hood, and then is discharged through the air outlet 111 of the air collecting box 11.

[0033] The maintenance cover 2 is arranged on the top of the range hood body 1 and around the air collecting box 11. The two side panels of the maintenance cover 2 that are arranged opposite to each other on the left and right are provided with easily removable panels 21. The easily removable panels 21 are intermittently connected to the side panels of the maintenance cover 2. Removing the easily removable panels 21 on one side panel can form a gap on the corresponding side of the maintenance cover 2. Specifically, easily removable panels 21 are arranged on the two side panels that are arranged opposite to each other on the left and right. When the user installs or removes the air outlet connector 3, the user can quickly remove the interfering easily removable panels 21, thereby being able to quickly remove or install the air outlet connector 3.

[0034] In this embodiment, please refer to Figure 3The air outlet joint 3 includes an air inlet chamber 31 and an air exhaust chamber 32. The air inlet chamber 31 is connected to the air exhaust chamber 32. The air inlet chamber 31 has an air inlet 311. The air inlet 311 is connected to the air outlet 111. The air exhaust chamber 32 has an air exhaust 321. The bottom height of the air exhaust chamber 32 is lower than the bottom height of the air inlet chamber 31. The air exhaust chamber 32 extends out of the side panel on the corresponding side of the maintenance cover 2 through the notch. When the user uses the range hood, the bottom height of the air exhaust chamber 32 is lower than the bottom height of the air inlet chamber 31. When the user uses oil smoke, the oil smoke enters the air exhaust chamber 32 through the air inlet chamber 31. The oil liquid formed by the condensation of the oil smoke in the air exhaust chamber 32 flows in the air exhaust chamber 32, thereby preventing the oil liquid from flowing back to the air inlet chamber 31.

[0035] When the user installs the air outlet connector 3, a notch is formed on the corresponding side of the maintenance cover 2, which makes it easier for the user to install or remove the air outlet connector 3 at the notch, thereby reducing the installation height of the air outlet connector 3. At the same time, the maintenance cover 2 can also support the air outlet connector 3, making the range hood more suitable for users with low kitchen floors; and by quickly removing the easily removable plate 21 on one side of the maintenance cover 2, it is easier for the user to clean or replace the air outlet connector. After the air outlet connector 3 is installed in the notch, when the user uses the range hood, the oil smoke enters the air collecting box 11 of the range hood body 1, and the oil smoke is discharged from the air outlet 111 of the air collecting box 11 into the air inlet chamber 31. The oil smoke in the air inlet chamber 31 then enters the exhaust chamber 32 through the air inlet chamber 31. The oil liquid formed by the condensation of the oil smoke in the exhaust chamber 32 flows in the exhaust chamber 32, thereby preventing the oil liquid from flowing back to the air inlet chamber 31.

[0036] Based on the above examples, please refer to Figure 2 , Figure 3 and Figure 4In other embodiments, the plane on which the air inlet 311 is provided on the air inlet cavity 31 is perpendicular to the plane on which the air outlet 321 is provided on the air exhaust cavity 32, and the plane connecting the air outlet end of the air inlet cavity 31 with the air outlet is parallel to the plane on which the air outlet 321 is located. By making the plane where the air inlet 311 of the air inlet chamber 31 is located perpendicular to the plane where the air outlet 321 of the exhaust chamber 32 is located, and the plane connecting the exhaust chamber 32 and the air outlet end of the air inlet chamber 31 is parallel to the plane where the air outlet 321 is located, when the user is using the range hood, the oil smoke passes through the air outlet 111 of the range hood and enters the air inlet chamber 31 through the air inlet 311 of the air inlet chamber 31, and the oil smoke enters the exhaust chamber 32 from the air outlet end of the air inlet chamber 31 and is discharged. In the process of the oil smoke passing through the air inlet chamber 31 and the exhaust chamber 32, the upward air outlet is converted into the left or right air outlet, so that the direction of the oil smoke flow is changed, and the oil smoke does not flow vertically upward, avoiding bending of the exhaust pipe connected to the air outlet joint 3, which is not only convenient for users on low floors to install and use the range hood, but also allows the oil smoke to be discharged more smoothly from the exhaust pipe.

[0037] Based on the above examples, please refer to Figure 2 and Figure 3 In other embodiments, the air inlet 311 is arranged on the bottom surface of the air inlet cavity 31, the air outlet 321 is arranged on the side of the air outlet cavity 32 away from the air inlet cavity 31, and the plane where the air outlet cavity 32 is connected to the air outlet end of the air inlet cavity 31 is parallel to the plane where the air outlet 321 is located. Since the plane where the air inlet 311 is located is perpendicular to the plane where the air outlet 321 is located, and the plane where the air outlet cavity 32 is connected to the air outlet end of the air inlet cavity 31 is parallel to the plane where the air outlet 321 is located, when the oil smoke passes through the air inlet cavity 31 and the air outlet cavity 32, the upward air flow is converted into the left or right air flow, which changes the direction of the oil smoke flow, and the oil smoke does not flow vertically upward, so that the air outlet joint 3 can be set lower in the height direction, avoiding the exhaust pipe connected to the air outlet joint 3 from bending, and reducing the risk of oil smoke accumulation in the bent exhaust pipe, which is not only convenient for users on low floors to install, but also conducive to the exhaust of oil smoke to the outside.

[0038] Based on the above examples, please refer to Figure 2 and Figure 3In other embodiments, the top surface of the air inlet chamber 31 is formed by extending the top surface of the exhaust chamber 32, and the side surface of the air inlet chamber 31 away from the exhaust chamber 32 is arc-shaped, and the arc-shaped side surface is tangent to the top surface of the exhaust chamber 32 at the connection between the two. In this embodiment, the side surface of the air inlet chamber 31 away from the right side of the exhaust chamber 32 is arc-shaped (that is, the side surface of the air inlet chamber 31 close to the left side of the exhaust chamber 32 is arc-shaped), and the arc-shaped side surface is tangent to the top surface of the exhaust chamber 32 at the connection between the two. With the arc-shaped air inlet chamber 31, when there is too much oil smoke, after the oil smoke enters the range hood, the oil smoke passes through the air outlet 111 of the range hood and the air inlet 311 of the air inlet chamber 31 and enters the arc-shaped surface in the air inlet chamber 31, and the arc-shaped surface guides the oil smoke, so that the oil smoke passes through the air inlet chamber 31 more smoothly and enters the exhaust chamber 32. At the same time, because the plane where the air inlet 311 is located is perpendicular to the plane where the air outlet 321 is located, and the plane connecting the air outlet end of the exhaust chamber 32 and the air inlet chamber 31 is parallel to the plane where the air outlet 321 is located, when the oil smoke passes through the air inlet chamber 31 and the exhaust chamber 32, the upward air outlet is converted into the left or right air outlet, thereby smoothly changing the direction of the oil smoke flow. By setting the side of the air inlet chamber 31 away from the exhaust chamber 32 to an arc shape, the oil smoke is prevented from gathering in the air inlet chamber 31.

[0039] Based on the above examples, please refer to Figure 2 and Figure 3 In other embodiments, a guide plate 312 is provided in the air inlet cavity 31. The guide plate 312 is arc-shaped, with one end facing the air inlet 311 and the other end facing the air outlet of the air inlet cavity 31. In this embodiment, the guide plate 312 may be a guide blade, and a plurality of guide blades may be provided at intervals; for example, two guide blades are provided, and the two guide blades are provided at intervals; specifically, the lower end of the arc-shaped guide plate 312 faces the air inlet 311, and the upper end of the arc-shaped guide plate 312 faces the air outlet of the air inlet cavity 31. Through the setting of the guide plate 312, when the user is using the range hood, after the oil smoke enters the range hood, the oil smoke passes through the air outlet 111 of the range hood and enters the air inlet chamber 31 through the air inlet 311 of the air inlet chamber 31. The guide plate 312 guides the oil smoke, and the oil smoke then enters the exhaust chamber 32 from the air outlet end of the air inlet chamber 31, thereby smoothly guiding the oil smoke through the air inlet chamber 31 into the exhaust chamber 32, changing the direction of the oil smoke flow, and the oil smoke does not flow vertically upwards. At the same time, it can effectively reduce the resistance of the arc-shaped air inlet chamber 31 to the oil smoke, improve the efficiency of the oil smoke passing through the air inlet chamber 31, and achieve an increase in the discharge speed of the oil smoke when there is too much oil smoke.

[0040] Based on the above examples, please refer to Figure 3 and Figure 4In other embodiments, the curvature of the curved side surface matches the curvature of the guide plate 312. In this embodiment, the curvature of the curved side surface of the air inlet chamber 31 is the same as the curvature of the guide plate 312, so that the oil smoke is guided by the curved surface of the air inlet chamber 31 and the guide plate 312, reducing the resistance of the curved air inlet chamber 31 to the oil smoke, and the oil smoke can enter the exhaust chamber 32 more smoothly.

[0041] Based on the above examples, please refer to Figure 1 and Figure 2 In other embodiments, the lowest point of the air outlet end of the air inlet cavity 31 is higher than the bottom surface of the air outlet cavity 32, and the bottom surface of the air outlet cavity 32 forms an oil collecting surface. When the user is in use, the oil smoke enters the air inlet 311 from the air outlet 111 of the air collecting box 11. Through the setting of the oil collecting surface, because the height of the oil collecting surface is lower than the heights of the air inlet 311 and the air outlet 321, the oil condensed by the oil smoke in the air outlet joint 3 flows on the oil collecting surface, and then the oil is guided by the oil collecting surface so that the oil flows to the oil outlet hole 322 and then flows out.

[0042] Based on the above examples, please refer to Figure 1 , Figure 2 and Figure 4 In other embodiments, an oil drain hole 322 is provided on the oil collecting surface, and the oil drain hole 322 is connected to an oil drain valve 4. By providing the oil drain hole 322 and the oil drain valve 4, the oil drain hole 322 is provided at the bottom of the air outlet joint 3, and the height of the air outlet end of the air inlet cavity 31 is higher than the bottom height of the air exhaust cavity 32, so that the oil drain hole 322 is at the lowest position. When the accumulated oil in the air outlet joint 3 needs to be discharged, the oil drain valve 4 is opened to facilitate the oil in the oil smoke to flow out from the oil drain hole 322, thereby avoiding the accumulation of oil in the air exhaust cavity 32 when there is too much oil smoke.

[0043] Based on the above examples, please refer to Figure 1 , Figure 2 and Figure 3In other embodiments, an oil drain hole 322 is provided on the oil collecting surface, and the oil drain hole 322 is connected to an oil drain pipe 5, and the oil drain end of the oil drain pipe 5 extends into the air collecting box 11. Through the setting of the oil drain hole 322 and the oil drain pipe 5, the height of the air outlet end of the air inlet chamber 31 is higher than the bottom height of the air exhaust chamber 32, so that the oil drain hole 322 is at the lowest position; the oil drain pipe 5 is used to connect the air outlet joint 3 and the air collecting chamber of the range hood body 1, so that the accumulated oil in the air outlet joint 3 can flow directly back to the air collecting chamber of the range hood body 1 along the oil drain pipe 5, and finally flow to the oil cup assembly for collection, so as to avoid the accumulation of oil in the range hood. Among them, the range hood body 1 mainly includes the following existing parts: a casing, a motor, a fan, an exhaust system, a control system and an oil fume collection system. The casing is usually made of metal or plastic materials and has a certain strength and corrosion resistance. It includes side panels, a top panel and a mask to support and fix other components. The motor usually adopts a single-phase capacitor-operated asynchronous motor. The motor generates suction by driving the fan to rotate, and the oil smoke in the kitchen is sucked into the range hood. The fan is usually installed on the shaft of the motor. When the motor starts, the fan starts to rotate, generating suction, sucking the oil smoke into the range hood, and exhausting it to the outside through the exhaust duct. The exhaust system is mainly composed of an air collecting chamber, a check valve and an exhaust pipe. The air collecting chamber serves as a channel for oil smoke, guiding the oil smoke from the kitchen to the inside of the range hood. The check valve prevents the oil smoke from flowing back and ensures that the oil smoke can be discharged smoothly. The exhaust pipe is responsible for exhausting the oil smoke to the outside.

[0044] Based on the above examples, please refer to Figure 1 In other embodiments, a connecting hole is provided on the side wall of the air collecting box 11, and an oil drain joint 112 protruding from the side wall of the air collecting box 11 extends outward from the connecting hole, and the oil discharged from the oil drain pipe 5 enters the air collecting box 11 through the oil drain joint 112 and flows along the inner wall of the air collecting box 11. Through the setting of the connecting hole and the oil drain joint 112, when the user uses the range hood, the oil flows along the oil drain pipe 5 to the oil drain joint 112, and the oil drain pipe 5 guides the oil, and the oil flows through the connecting hole to the inner wall of the air collecting box 11, so that the oil in the air outlet joint 3 can directly flow back to the air collecting box 11, avoiding the oil from flowing back through the air inlet 311. At the same time, the user can also easily disassemble the oil drain pipe 5 from the oil drain joint 112, so that the user can clean or replace the oil drain pipe 5.

[0045] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A range hood, characterized in that: include: A range hood body (1) having an air collecting box (11), wherein the air collecting box (11) is provided with an air outlet (111); A maintenance cover (2) is arranged on the top of the range hood body (1) and around the air collecting box (11); two side panels of the maintenance cover (2) that are arranged opposite to each other on the left and right sides are provided with easily removable plates (21); the easily removable plates (21) are intermittently connected to the side panels of the maintenance cover (2); by removing the easily removable plate (21) on one side panel, a gap can be formed on the corresponding side of the maintenance cover (2); An air outlet joint (3) comprises an air inlet chamber (31) and an air outlet chamber (32), wherein the air inlet chamber (31) is connected to the air outlet chamber (32), the air inlet chamber (31) has an air inlet (311), the air inlet (311) is connected to the air outlet (111), the air outlet chamber (32) has an air outlet (321), the bottom surface height of the air outlet chamber (32) is lower than the bottom surface height of the air inlet chamber (31), and the air outlet chamber (32) extends through the notch to the outside of the side plate on the corresponding side of the maintenance cover (2).

2. The range hood according to claim 1, characterized in that: The plane on which the air inlet (311) is provided on the air inlet cavity (31) is perpendicular to the plane on which the air outlet (321) is provided on the air outlet cavity (32), and the plane connecting the air outlet end of the air outlet cavity (32) and the air inlet cavity (31) is parallel to the plane on which the air outlet (321) is located.

3. The range hood according to claim 1, characterized in that: The air inlet (311) is arranged on the bottom surface of the air inlet cavity (31), the air outlet (321) is arranged on the side of the air outlet cavity (32) away from the air inlet cavity (31), and the plane connecting the air outlet end of the air outlet cavity (32) and the air inlet cavity (31) is parallel to the plane where the air outlet (321) is located.

4. The range hood according to claim 3, characterized in that: The top surface of the air inlet cavity (31) is formed by extending the top surface of the air exhaust cavity (32), and the side surface of the air inlet cavity (31) away from the air exhaust cavity (32) is arc-shaped, and the arc-shaped side surface is tangent to the top surface of the air exhaust cavity (32) at the connection between the two.

5. The range hood according to claim 4, characterized in that: A guide plate (312) is provided in the air inlet cavity (31), and the guide plate (312) is arc-shaped, with one end facing the air inlet (311) and the other end facing the air outlet end of the air inlet cavity (31).

6. The range hood according to claim 5, characterized in that: The curvature of the curved side surface matches the curvature of the guide plate (312).

7. The range hood according to claim 1, characterized in that: The lowest point of the air outlet end of the air inlet cavity (31) is higher than the bottom surface of the air exhaust cavity (32), and the bottom surface of the air exhaust cavity (32) forms an oil collecting surface.

8. The range hood according to claim 7, characterized in that: An oil drain hole (322) is provided on the oil collecting surface, and the oil drain hole (322) is connected to an oil drain valve (4).

9. The range hood according to claim 7, characterized in that: An oil drain hole (322) is provided on the oil collecting surface, and an oil drain pipe (5) is connected to the oil drain hole (322), and the oil drain end of the oil drain pipe (5) extends into the air collecting box (11).

10. The range hood according to claim 9, characterized in that: A connecting hole is provided on the side wall of the air collecting box (11), and an oil drain joint (112) extends outward from the connecting hole and protrudes from the side wall of the air collecting box (11). The oil discharged from the oil drain pipe (5) enters the air collecting box (11) through the oil drain joint (112) and flows along the inner wall of the air collecting box (11).

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