Air outlet connector and range hood with same
By designing an air outlet joint between the vertical air inlet and the exhaust port, the flow direction of the oil fume is changed, which solves the problem of unsmooth oil fume emission when installed by users on low floors, and achieves smoother oil fume emission.
Patent Information
- Application Number
- CN202421137607.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-23
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-05-23
AI Technical Summary
The smoke exhaust direction of the air outlet joint of the existing hood is vertically upward, which causes the smoke exhaust pipe to bend when installed by users on low floors, resulting in poor oil fume emissions.
Design an air outlet joint, including an air inlet cavity and an air exhaust cavity. The air inlet is perpendicular to the plane of the air exhaust outlet. The air outlet end of the air inlet cavity enters the exhaust cavity, causing the oil fume to flow from upward to left or right. , avoid bending around the exhaust pipe.
It realizes the change of the flow direction of the oil fume, avoids the problem of unsmooth discharge of oil fume caused by bending the exhaust pipe, and facilitates the installation and use of users on low floors.
Smart Images
Figure CN222378183U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of kitchen appliances, in particular to an air outlet joint and a range hood having the same. 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, the oil smoke in the air collecting chamber of the existing range hood is discharged from the air collecting chamber and enters the external exhaust pipe through the air outlet joint. The exhaust port of the air outlet joint is set upward, and its exhaust direction is vertically upward. However, when the user's kitchen is low, the installation height of the range hood is limited by the height of the kitchen. The exhaust pipe needs to be bent at a certain angle and then led out horizontally. The bent exhaust pipe creates resistance to the oil smoke, making the oil smoke discharge not smooth, which is not conducive to the exhaust of the oil smoke to the outside. Utility Model Content
[0004] The utility model provides an air outlet joint and a range hood having the same, so as to solve the problem that the smoke exhaust direction of the existing air outlet joint is vertically upward, which is not conducive to installation by users on low floors and causes unsmooth oil smoke exhaust.
[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an air outlet joint, used for a range hood, connected to the air outlet of the range hood, comprising a main body, the main body comprising an air inlet chamber and an air exhaust chamber, the air inlet chamber is connected to the exhaust chamber, the air inlet chamber has an air inlet, the exhaust chamber has an exhaust outlet, the air inlet is connected to the air outlet of the range hood, the plane where the air inlet is located is perpendicular to the plane where the exhaust outlet is located, and the plane where the exhaust chamber is connected to the air outlet end of the air inlet chamber is parallel to the plane where the exhaust outlet is located.
[0006] 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.
[0007] 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.
[0008] According to an embodiment of the utility model, the curvature of the curved side surface of the air inlet cavity is adapted to the curvature of the guide plate.
[0009] According to one embodiment of the present utility model, a purification module is provided in the exhaust cavity.
[0010] According to one embodiment of the utility model, a detection channel is provided on the top of the exhaust cavity, the detection channel is communicated with the exhaust cavity, and a smoke sensing component is installed in the detection channel.
[0011] The utility model also provides a range hood, which adopts any of the above-mentioned air outlet joints, and comprises a range hood body, wherein the range hood body has an air outlet, and the air inlet is sealedly connected to the air outlet.
[0012] According to one embodiment of the utility model, it also includes a maintenance cover, the height of the plane where the air inlet is located is higher than the bottom height of the exhaust cavity, and two side panels of the maintenance cover that are arranged opposite to each other on the left and right are provided with easily removable panels, and the easily removable panels are intermittently connected to the side panels of the maintenance cover. By removing the easily removable panel on one of the side panels, the exhaust cavity can be extended out of the side panel on the corresponding side of the maintenance cover.
[0013] According to an embodiment of the utility model, the height of the air outlet end of the air inlet cavity is higher than the bottom height of the air exhaust cavity, the bottom surface of the air exhaust cavity is provided with an oil drain hole, and the oil drain hole is connected to an oil drain valve.
[0014] According to one embodiment of the utility model, the height of the air outlet end of the air inlet chamber is higher than the height of the bottom surface of the exhaust chamber, the bottom surface of the exhaust chamber is provided with an oil drain hole, the oil drain hole is connected to an oil drain pipe, and the oil drain end of the oil drain pipe extends into the air collecting chamber of the range hood body.
[0015] Compared with the prior art, the air outlet connector of the utility model and the range hood having the same have the following advantages:
[0016] The utility model discloses an air outlet joint, through the arrangement of an air inlet chamber and an exhaust chamber, so that the plane where the air inlet of the air inlet chamber is located is perpendicular to the plane where the air outlet of the exhaust chamber is located. Because the plane where the air inlet is located is perpendicular to the plane where the air outlet is located, the plane where the exhaust chamber and the air outlet end of the air inlet chamber are connected is parallel to the plane where the air outlet is located. The oil smoke passes through the air outlet of the hood and enters the air inlet chamber through the air inlet of the air inlet chamber, and then enters the exhaust chamber through the air outlet end of the air inlet chamber and is discharged. In the process of the oil smoke passing through the air inlet chamber and the exhaust chamber, the upward air outlet is converted into the left or right air outlet, so that the flow direction of the oil smoke is changed, and the oil smoke does not flow vertically upward, so that the smoke exhaust pipe connected to the air outlet joint is avoided from bending, which is convenient for installation and use by users on low floors.
[0017] The utility model provides a range hood, through the arrangement of the range hood body and the air outlet joint, the air inlet of the air inlet cavity in the air outlet joint is sealed and connected with the air outlet of the range hood body, the oil smoke in the range hood body enters the air inlet from the air outlet, so that the oil smoke enters the air inlet cavity, and avoids the oil smoke from flowing out between the air outlet of the range hood body and the air inlet of the air outlet joint, further reducing the pollution of the oil smoke to the kitchen. At the same time, after the oil smoke enters the air outlet joint, the air outlet joint converts the upward air outlet into the left or right air outlet, so that the oil smoke flows in the left or right direction, avoiding the oil smoke from flowing vertically upward, thereby avoiding bending the exhaust pipe connected to the air outlet joint, which is more conducive to the installation, disassembly and use of the range hood by users on low floors. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] 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.
[0019] Figure 1 The utility model is a structural schematic diagram of an air outlet joint.
[0020] Figure 2 The utility model is a structural schematic diagram of an air outlet joint with an oil drain pipe.
[0021] Figure 3 The utility model is a structural schematic diagram of an air outlet joint with a smoke sensor component.
[0022] Figure 4 It is a structural schematic diagram of an air outlet connector with a purification module according to the utility model.
[0023] Figure 5 The utility model is an exploded view of a range hood.
[0024] Figure 6 It is a cross-sectional schematic diagram of a range hood with a purification module according to the utility model.
[0025] Figure 7 The utility model is a cross-sectional schematic diagram of a range hood with a smoke sensor assembly.
[0026] Figure 8 The utility model is a cross-sectional schematic diagram of a range hood with an oil drain pipe.
[0027] Fig. 9 The utility model is a cross-sectional schematic diagram of a range hood with an oil drain valve.
[0028] Reference numerals:
[0029] Main body 1, air inlet chamber 11, air inlet port 111, guide plate 112, air exhaust chamber 12, air exhaust port 121, detection channel 122, oil drain hole 123, oil drain valve 124, oil drain pipe 125, purification module 2, smoke sensor assembly 3, range hood body 4, air outlet port 41, maintenance cover 5, and easily removable plate 51. DETAILED DESCRIPTION
[0030] 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.
[0031] 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.
[0032] 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.
[0033] 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:
[0034] See also Figures 1 to 4The utility model provides an air outlet joint, which is used for a range hood and connected to an air outlet 41 of the range hood. The air outlet joint comprises a body 1, which comprises an air inlet chamber 11 and an air outlet chamber 12, wherein the air inlet chamber 11 is connected to the air outlet chamber 12, the air inlet chamber 11 has an air inlet 111, the air outlet chamber 12 has an air outlet 121, the air inlet 111 is connected to the air outlet 41 of the range hood, the plane where the air inlet 111 is located is perpendicular to the plane where the air outlet 121 is located, and the plane where the air outlet chamber 12 is connected to the air inlet chamber 11 is parallel to the plane where the air outlet 121 is located.
[0035] The utility model makes the plane where the air inlet 111 of the air inlet chamber 11 is located perpendicular to the plane where the air outlet 121 of the exhaust chamber 12 is located. When the user uses the range hood, after the oil smoke enters the range hood, the oil smoke passes through the air outlet 41 of the range hood and enters the air inlet chamber 11 through the air inlet 111 of the air inlet chamber 11, and then enters the exhaust chamber 12 from the air outlet end of the air inlet chamber 11 and is discharged. Because the plane where the air inlet 111 is located is perpendicular to the plane where the air outlet 121 is located, the exhaust chamber 12 is connected to the air outlet end of the air inlet chamber 11. The plane is parallel to the plane where the exhaust port 121 is located, so that when the oil smoke passes through the air inlet chamber 11 and the exhaust chamber 12, the upward air outlet is converted into the left or right air outlet, thereby changing the direction of the oil smoke flow. The oil smoke does not flow vertically upward, so that the air outlet joint can be set lower in the height direction, avoiding bending of the exhaust pipe connected to the air outlet joint, and reducing the risk of oil smoke accumulation in the bent exhaust pipe. This is not only convenient for users on low floors to install, but also conducive to the discharge of oil smoke to the outside.
[0036] Based on the above examples, please refer to Figure 1 , Figure 3 and Figure 4In other embodiments, the top surface of the air inlet chamber 11 is formed by extending from the top surface of the exhaust chamber 12, and the side surface of the air inlet chamber 11 away from the exhaust chamber 12 is arc-shaped, and the arc-shaped side surface is tangent to the top surface of the exhaust chamber 12 at the connection between the two. In this embodiment, the side surface of the air inlet chamber 11 away from the right side of the exhaust chamber 12 is arc-shaped (that is, the side surface of the air inlet chamber 11 close to the left side of the exhaust chamber 12 is arc-shaped), and the arc-shaped side surface is tangent to the top surface of the exhaust chamber 12 at the connection between the two. With the arc-shaped air inlet chamber 11, when there is too much oil smoke, after the oil smoke enters the range hood, the oil smoke passes through the air outlet 41 of the range hood and the air inlet 111 of the air inlet chamber 11 and enters the arc-shaped surface in the air inlet chamber 11, and the arc-shaped surface guides the oil smoke, so that the oil smoke passes through the air inlet chamber 11 more smoothly and enters the exhaust chamber 12. At the same time, because the plane where the air inlet 111 is located is perpendicular to the plane where the air outlet 121 is located, the plane connecting the air outlet end of the exhaust chamber 12 and the air inlet chamber 11 is parallel to the plane where the air outlet 121 is located, so that when the oil smoke passes through the air inlet chamber 11 and the exhaust chamber 12, the upward air outlet is converted into the left or right air outlet, thereby smoothly changing the direction of the oil smoke flow. At the same time, the side surface of the air inlet chamber 11 away from the exhaust chamber 12 is arc-shaped, which also prevents the oil smoke from gathering in the air inlet chamber 11.
[0037] Based on the above examples, please refer to Figure 1 , Figure 2 and Figure 6 In other embodiments, a guide plate 112 is provided in the air inlet cavity 11. The guide plate 112 is arc-shaped, with one end facing the air inlet 111 and the other end facing the air outlet of the air inlet cavity 11. In this embodiment, the guide plate 112 may be a guide blade, and a plurality of guide blades may be provided at intervals; for example, the guide blades are provided as two, and the two guide blades are provided at intervals; specifically, the lower end of the arc-shaped guide plate 112 faces the air inlet 111, and the upper end of the arc-shaped guide plate 112 faces the air outlet of the air inlet cavity 11. By setting the guide plate 112, when the user is using the range hood, after the oil smoke enters the range hood, the oil smoke passes through the air outlet 41 of the range hood and enters the air inlet chamber 11 through the air inlet 111 of the air inlet chamber 11. The guide plate 112 guides the oil smoke, and the oil smoke then enters the exhaust chamber 12 from the air outlet end of the air inlet chamber 11, thereby smoothly guiding the oil smoke through the air inlet chamber 11 into the exhaust chamber 12. Not only does it change the direction of the oil smoke flow, the oil smoke will not flow vertically upwards, but it can also effectively reduce the resistance of the arc-shaped air inlet chamber 11 to the oil smoke, thereby improving the efficiency of the oil smoke passing through the air inlet chamber 11, and in the case of excessive oil smoke, it can further increase the discharge speed of the oil smoke.
[0038] Based on the above examples, please refer to Figure 1 , Figure 2 and Figure 6In other embodiments, the curvature of the curved side of the air inlet chamber 11 matches the curvature of the guide plate 112. In this embodiment, the curvature of the curved side of the air inlet chamber 11 is the same as the curvature of the guide plate 112, so that the oil smoke is guided by the curved surface of the air inlet chamber 11 and the guide plate 112, reducing the resistance of the curved air inlet chamber 11 to the oil smoke, and the oil smoke can enter the exhaust chamber 12 more smoothly.
[0039] Based on the above examples, please refer to Figure 4 and Figure 6 In other embodiments, a purification module 2 is provided in the exhaust cavity 12. By providing the purification module 2, when the user uses the range hood, the fumes discharged from the range hood are purified through the purification module 2, thereby achieving air purification and preventing the discharged fumes from polluting the environment.
[0040] Based on the above examples, please refer to Figure 3 and Figure 7 In other embodiments, a detection channel 122 is provided at the top of the exhaust cavity 12, the detection channel 122 is communicated with the exhaust cavity 12, and a smoke sensor assembly 3 is installed in the detection channel 122. The detection channel 122 and the smoke sensor assembly 3 installed in the detection channel 122 facilitate the installation of the smoke sensor assembly 3 in the exhaust cavity 12. When the range hood is in a standby state, the smoke sensor assembly 3 in the air outlet joint detects that the detection value of the oil smoke exceeds the set threshold, and the range hood is turned on to discharge the oil smoke to the public flue, so as to prevent the exhaust gas in the public flue from flowing back into the user's kitchen.
[0041] The utility model also provides a range hood, see Figures 5 to 9The range hood includes a range hood body 4 and an air outlet joint of any of the above items. The range hood body 4 has an air outlet 41, and the air inlet 111 is sealed and connected to the air outlet 41. Specifically, the range hood body 4 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 plate 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 rotation of the fan to suck the oil fume in the kitchen into the inside of the range hood. The fan is usually installed on the rotating shaft of the motor. When the motor starts, the fan starts to rotate, generates suction, sucks the oil fume into the inside of the range hood, and discharges it to the outside through the exhaust duct. The exhaust system is mainly composed of a wind collecting chamber, a check valve and a smoke exhaust pipe. The wind collecting chamber serves as a passage for oil fume, guiding the oil fume from the kitchen to the inside of the range hood. The check valve prevents the backflow of oil smoke and ensures that the oil smoke can be discharged smoothly. The exhaust pipe is responsible for exhausting the oil smoke to the outside. In this embodiment, the top of the air collecting chamber is the air outlet 41 of the range hood body 4, and the exhaust pipe is connected to the exhaust chamber 12. The control system is mainly composed of switches, lighting lamps and other components. The switch is used to control the working state of the range hood, such as opening, closing, speed regulation, etc. The lighting lamp provides lighting function for the kitchen, which is convenient for user operation. The oil fume collection system includes oil collection box, oil collection hood and other components. When the oil fume is sucked into the range hood, some of the grease in the oil fume will be collected in the oil collection box, which is convenient for users to clean regularly.
[0042] The utility model seals and connects the air inlet 111 of the air inlet cavity 11 with the air outlet 41 of the hood body 4, so that the oil smoke in the hood body 4 passes through the air outlet 41 and enters the air inlet 111, and then enters the air inlet cavity 11, so as to prevent the oil smoke from flowing out from between the air inlet 111 and the air outlet 41 and polluting the kitchen. In addition, after the oil smoke enters the air outlet joint, the air outlet joint converts the upward air flow into the left or right air flow, so that the oil smoke flows in the left or right direction, and prevents the oil smoke from flowing vertically upward, thereby avoiding bending the exhaust pipe connected to the air outlet joint, and realizing that it is more convenient for users on low floors to disassemble and use the hood.
[0043] Based on the above examples, please refer to Figure 1 and Figure 2In other embodiments, the utility model further includes a maintenance cover 5, the height of the plane where the air inlet 111 is located is higher than the bottom height of the exhaust cavity 12, and two side panels of the maintenance cover 5 that are arranged opposite to each other on the left and right are provided with easily removable panels 51, and the easily removable panels 51 are intermittently connected to the side panels of the maintenance cover 5. By removing the easily removable panel 51 on one side panel, the exhaust cavity 12 can be extended out of the side panel on the corresponding side of the maintenance cover 5. Through the provision of the maintenance cover 5, when the user needs to clean or replace the air outlet joint, the easily removable panels 51 are provided on the two side panels of the maintenance cover 5 that are arranged opposite to each other on the left and right, so that when the user installs the air outlet joint, the easily removable panels 51 that interfere can be quickly removed, thereby facilitating the disassembly or maintenance of the air outlet joint.
[0044] Based on the above examples, please refer to Figure 1 and Fig. 9 In other embodiments, the height of the outlet end of the air inlet chamber 11 is higher than the bottom height of the exhaust chamber 12, and the bottom surface of the exhaust chamber 12 is provided with an oil drain hole 123, and the oil drain hole 123 is connected to an oil drain valve 124. By setting the oil drain hole 123 and the oil drain valve 124, the oil drain hole 123 is set at the bottom of the air outlet joint, and the height of the outlet end of the air inlet chamber 11 is higher than the bottom height of the exhaust chamber 12, so that the horizontal aspect of the air outlet joint is an inclined surface, so that the oil drain hole 123 is at the lowest position. When it is necessary to discharge the accumulated oil in the air outlet joint, the oil drain valve 124 is opened to facilitate the oil in the oil smoke to flow out from the oil drain hole 123.
[0045] Based on the above examples, please refer to Figure 2 and Figure 8 In other embodiments, the height of the outlet end of the air inlet chamber 11 is higher than the bottom height of the exhaust chamber 12, and the bottom surface of the exhaust chamber 12 is provided with an oil drain hole 123, and the oil drain hole 123 is connected to an oil drain pipe 125, and the oil drain end of the oil drain pipe 125 extends into the air collecting chamber of the range hood body 4. Through the provision of the oil drain hole 123 and the oil drain pipe 125, the height of the outlet end of the air inlet chamber 11 is higher than the bottom height of the exhaust chamber 12, so that the horizontal aspect of the air outlet joint is an inclined surface, so that the oil drain hole 123 is at the lowest position; the oil drain pipe 125 is used to connect the air outlet joint and the air collecting chamber of the range hood body 4, so that the accumulated oil in the air outlet joint can flow directly back to the air collecting chamber of the range hood body 4 along the oil drain pipe 125, and finally flow into the oil cup assembly for collection.
[0046] 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. An air outlet connector, used for a range hood, connected to the air outlet of the range hood, characterized in that: The invention comprises a main body (1), wherein the main body (1) comprises an air inlet chamber (11) and an air exhaust chamber (12), wherein the air inlet chamber (11) is connected to the air exhaust chamber (12), the air inlet chamber (11) has an air inlet (111), the air exhaust chamber (12) has an air exhaust chamber (121), the air inlet chamber (111) is connected to the air outlet of the range hood, the plane where the air inlet (111) is located is perpendicular to the plane where the air exhaust chamber (121) is located, and the plane where the air exhaust chamber (12) is connected to the air outlet end of the air inlet chamber (11) is parallel to the plane where the air exhaust chamber (121) is located.
2. The air outlet connector according to claim 1, characterized in that: The top surface of the air inlet cavity (11) is formed by extending the top surface of the air exhaust cavity (12), and the side surface of the air inlet cavity (11) away from the air exhaust cavity (12) is arc-shaped, and the arc-shaped side surface is tangent to the top surface of the air exhaust cavity (12) at the connection between the two.
3. The air outlet connector according to claim 2, characterized in that: A guide plate (112) is provided in the air inlet cavity (11); the guide plate (112) is arc-shaped, with one end facing the air inlet (111) and the other end facing the air outlet end of the air inlet cavity (11).
4. The air outlet connector according to claim 3, characterized in that: The curvature of the curved side surface of the air inlet cavity (11) matches the curvature of the guide plate (112).
5. The air outlet connector according to claim 1, characterized in that: A purification module (2) is provided in the exhaust chamber (12).
6. The air outlet connector according to claim 1, characterized in that: A detection channel (122) is provided at the top of the exhaust cavity (12); the detection channel (122) is in communication with the exhaust cavity (12); and a smoke sensing component (3) is installed in the detection channel (122).
7. A range hood, using the air outlet connector according to any one of claims 1 to 6, characterized in that: It comprises a range hood body (4), the range hood body (4) having an air outlet (41), and the air inlet (111) is sealedly connected to the air outlet (41).
8. The range hood according to claim 7, characterized in that: It also includes a maintenance cover (5), the height of the plane where the air inlet (111) is located is higher than the bottom height of the exhaust cavity (12), and two side panels of the maintenance cover (5) arranged opposite to each other on the left and right are provided with easily removable panels (51), and the easily removable panels (51) are intermittently connected to the side panels of the maintenance cover (5), and by removing the easily removable panel (51) on one side panel, the exhaust cavity (12) can be extended to the outside of the side panel on the corresponding side of the maintenance cover (5).
9. The range hood according to claim 7, characterized in that: The height of the air outlet end of the air inlet chamber (11) is higher than the height of the bottom surface of the air exhaust chamber (12); the bottom surface of the air exhaust chamber (12) is provided with an oil drain hole (123); and the oil drain hole (123) is connected to an oil drain valve (124).
10. The range hood according to claim 7, characterized in that: The height of the air outlet end of the air inlet chamber (11) is higher than the height of the bottom surface of the air exhaust chamber (12); the bottom surface of the air exhaust chamber (12) is provided with an oil drain hole (123); the oil drain hole (123) is connected to an oil drain pipe (125); the oil drain end of the oil drain pipe (125) extends into the air collecting chamber of the range hood body (4).