Range hood

Abstract

The embodiment of the utility model provides a range hood and relates to the technical field of kitchen appliances. The range hood comprises a range hood box, a folding smoke pipe, a wall smoke suction hood and an adjusting assembly, the range hood box is provided with a smoke exhaust main pipe, and the folding smoke pipe is arranged at the bottom of the range hood box and communicates with the smoke exhaust main pipe; the wall smoke suction hood is arranged on the side, away from the smoke machine box, of the folding smoke pipe and communicates with the folding smoke pipe. The adjusting assembly is arranged on the side, away from the folding smoke pipe, of the wall smoke suction hood and used for adjusting the relative position between the wall smoke suction hood and the smoke machine box. According to the range hood, the flowing distance of oil smoke can be reduced, the phenomena of side leakage, smoke leakage and the like are avoided, and the overall trapping efficiency of the oil smoke and the use comfort of a user are improved.

Description

Technical Field

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

[0002] As a household appliance designed to optimize the cooking environment, the main function of a range hood is to effectively collect and exhaust the oil fumes generated in the kitchen through a specifically designed hood system. Currently, the mainstream range hoods on the market are wall-mounted, and usually adopt the method of top or side suction to guide the oil fumes to the outside for emission.

[0003] However, there are certain limitations in the hood setting of the current range hoods. Their height often remains unchanged, and there is a certain distance between them and the cookware placed on the stove. This results in possible side leakage or smoke escape of the oil fumes before being captured by the hood, thus affecting the overall capture efficiency of the oil fumes and further reducing the user experience. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a range hood, which can reduce the flow distance of the oil fumes, avoid phenomena such as side leakage and smoke escape, and improve the overall capture efficiency of the oil fumes and the user comfort.

[0005] The embodiments of the utility model are implemented as follows:

[0006] In a first aspect, the utility model provides a range hood, comprising:

[0007] A smoke box, which is provided with a main exhaust pipe;

[0008] A folding smoke pipe, which is arranged at the bottom of the smoke box and communicated with the main exhaust pipe;

[0009] A wall-mounted smoke hood, which is arranged on the side of the folding smoke pipe away from the smoke box and communicated with the folding smoke pipe; and

[0010] An adjusting assembly, which is arranged on the side of the wall-mounted smoke hood away from the folding smoke pipe and used to adjust the relative position between the wall-mounted smoke hood and the smoke box.

[0011] In an optional embodiment, the adjusting assembly includes a mounting bracket, an adjusting rod and a sliding sleeve. The mounting bracket is arranged at intervals on the side of the wall-mounted smoke hood away from the folding smoke pipe. The adjusting rod is arranged on the mounting bracket. The sliding sleeve is slidably sleeved on the adjusting rod, and the sliding sleeve is connected with the wall-mounted smoke hood.

[0012] In an alternative embodiment, the adjusting assembly further includes a magnetic base and a magnetic plate. The magnetic base is disposed on the mounting bracket, and the magnetic plate is disposed on a side of the mounting bracket away from the wall suction hood and is used for magnetic cooperation with the magnetic base.

[0013] In an alternative embodiment, the adjusting assembly further includes a magnetic switch, and the magnetic switch is disposed on the magnetic base.

[0014] In an alternative embodiment, the adjusting assembly further includes a locking member, and the locking member is disposed on the sliding sleeve and is used for locking and fixing the sliding sleeve and the adjusting rod.

[0015] In an alternative embodiment, the range hood further includes a top suction hood, and the top suction hood is disposed at the bottom of the range hood casing and is communicated with the main exhaust pipe.

[0016] In an alternative embodiment, the range hood casing is further provided with an exhaust branch pipe, and the top suction hood, the exhaust branch pipe and the main exhaust pipe are communicated in sequence.

[0017] In an alternative embodiment, the range hood further includes a switch plate, and the switch plate is slidably inserted into the exhaust branch pipe for opening or closing the exhaust branch pipe.

[0018] In an alternative embodiment, the range hood further includes a driving device, and the driving device is disposed in the range hood casing and is connected to the switch plate. The driving device is used for driving the switch plate to slide to open or close the exhaust branch pipe.

[0019] In an alternative embodiment, the driving device includes a driving motor and a screw rod. The driving motor and the screw rod are both disposed in the range hood casing. The driving motor is in transmission connection with the screw rod, and the screw rod is connected to the switch plate.

[0020] The beneficial effects of the embodiments of the present utility model include:

[0021] The range hood includes a range hood casing, a folding smoke pipe, a wall suction hood and an adjusting assembly. The range hood casing is provided with a main exhaust pipe. The folding smoke pipe is disposed at the bottom of the range hood casing and is communicated with the main exhaust pipe. The wall suction hood is disposed on a side of the folding smoke pipe away from the range hood casing and is communicated with the folding smoke pipe. The adjusting assembly is disposed on a side of the wall suction hood away from the folding smoke pipe and is used for adjusting the relative position between the wall suction hood and the range hood casing.

[0022] By adjusting the settings of the adjustment component, the relative position between the wall smoke hood and the smoke cabinet can be adjusted. In other words, the wall smoke hood can move relative to the cooktop installed on the cooking range, so as to adjust the positional relationship with the cookware according to the size of the cookware on the cooktop. During cooking, the oil fumes generated in the cookware can be inhaled and discharged through the wall smoke hood close to one side thereof. At the same time, due to the telescopic property of the folding smoke pipe, after adjusting the movement of the wall smoke hood, it will not affect the normal smoke exhaust of the folding smoke pipe. Therefore, this range hood can reduce the flow distance of the oil fumes, avoid phenomena such as side leakage and smoke escape, and improve the overall capture efficiency of the oil fumes and the user's comfort level. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0024] Figure 1 Structural schematic diagram of the range hood provided by the embodiment of the present utility model;

[0025] Figure 2 Installation schematic diagram of the range hood provided by the embodiment of the present utility model;

[0026] Figure 3 is Figure 1 Partial enlarged view of part A in

[0027] Reference numerals: 100 - range hood; 10 - smoke cabinet; 11 - main smoke exhaust pipe; 12 - smoke exhaust branch pipe; 20 - folding smoke pipe; 30 - wall smoke hood; 40 - adjustment component; 41 - mounting bracket; 42 - adjustment rod; 43 - sliding sleeve; 44 - locking member; 45 - magnetic base; 46 - magnetic plate; 47 - magnetic switch; 50 - top smoke hood; 60 - switch board; 70 - driving device; 71 - driving motor; 72 - screw rod; 81 - fan; 82 - external smoke exhaust pipe; 200 - cooktop; 300 - cookware; 400 - wall. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated in the drawings here can be arranged and designed in various different configurations.

[0029] Accordingly, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0030] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not require further definition and explanation in subsequent drawings.

[0031] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and should not be construed as indicating or implying relative importance.

[0032] In addition, terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0033] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0034] As described in the background art, the current market's range hoods are mainly wall-mounted, and usually adopt the method of top or side suction to guide the fumes to the outside for discharge. However, there are certain limitations in the setting of the wind hood of the current range hoods. Its height often remains unchanged, and there is a certain distance from the cookware placed on the stove. This results in the phenomenon that the fumes may leak or escape before being captured by the wind hood, thus affecting the overall capture efficiency of the fumes and further reducing the user experience.

[0035] Based on this, please refer to Figures 1 - 3 , an embodiment of the present utility model provides a range hood 100, which can effectively improve the above-mentioned technical problems, that is, it can reduce the flow distance of oil fume, avoid phenomena such as side leakage and smoke escape, and improve the overall oil fume capture efficiency and the user's comfort level. The range hood 100 will be described in detail below.

[0036] Please refer to Figure 1 and Figure 2 , Figure 1 is a schematic structural diagram of the range hood 100 provided in this embodiment, Figure 2 is an installation schematic diagram of the range hood 100 provided in this embodiment. Combining Figure 1 and Figure 2 , the range hood 100 is usually installed on the kitchen wall 400 and above the cooking stove 200. The cooking appliance 300 is arranged on the cooking stove 200. It is easy to understand that the range hood 100 is used to collect and discharge the oil fume generated by the cookware arranged on the cooking appliance 300 during the cooking process.

[0037] Specifically, the range hood 100 includes a smoke box 10, a folding smoke pipe 20, a wall-mounted smoke hood 30, and an adjustment component 40. The smoke box 10 is provided with a main exhaust pipe 11. The folding smoke pipe 20 is arranged at the bottom of the smoke box 10 and communicated with the main exhaust pipe 11; the wall-mounted smoke hood 30 is arranged on the side of the folding smoke pipe 20 away from the smoke box 10 and communicated with the folding smoke pipe 20; the adjustment component 40 is arranged on the side of the wall-mounted smoke hood 30 away from the folding smoke pipe 20 and used to adjust the relative position between the wall-mounted smoke hood 30 and the smoke box 10.

[0038] Through the setting of the adjustment component 40, the relative position between the wall-mounted smoke hood 30 and the smoke box 10 can be adjusted. In other words, the wall-mounted smoke hood 30 can move relative to the cooking appliance 30 arranged on the cooking stove 200, so as to adjust the positional relationship with the cookware according to the size of the cookware on the cooking appliance 300; at the same time, due to the telescopic property of the folding smoke pipe 20, after the wall-mounted smoke hood 30 is adjusted to move, it will not affect the normal smoke exhaust of the folding smoke pipe 20. Therefore, during cooking, the oil fume generated in the cookware can be inhaled and discharged through the wall-mounted smoke hood 30 on its side, thereby reducing the flow distance of the oil fume, avoiding phenomena such as side leakage and smoke escape, and further improving the overall oil fume capture efficiency and the user's comfort level.

[0039] Further, the range hood 100 further includes a blower 81 and an external exhaust pipe 82. The blower 81 is disposed in the smoke box 10, and the external exhaust pipe 82 is disposed in the smoke box 10 and communicated with the main exhaust pipe 11. When the blower 81 is working, a negative pressure can be formed in the smoke box 10, so that the oil fume is inhaled through the wall suction hood 30, sequentially passes through the folding smoke pipe 20 and the main exhaust pipe 11, and is discharged to the outside through the external exhaust pipe 82.

[0040] Combined with Figure 1 , the adjusting assembly 40 includes a mounting bracket 41, an adjusting rod 42 and a sliding sleeve 43. The mounting bracket 41 is disposed at an interval on the side of the wall suction hood 30 away from the folding smoke pipe 20. The adjusting rod 42 is disposed on the mounting bracket 41. The sliding sleeve 43 is slidably sleeved on the adjusting rod 42, and the sliding sleeve 43 is connected to the wall suction hood 30. That is to say, by sliding the sliding sleeve 43 on the adjusting rod 42, the wall suction hood 30 can be driven to move up and down, so as to adjust the height of the wall suction hood 30, make the wall suction hood 30 in a suitable height position, match the height of the cookware on the cooker 300, so as to better suck the smoke, reduce the flowing distance of the oil fume, and avoid the side leakage or escape of the oil fume.

[0041] Combined with Figure 1 and Figure 2 , specifically in this embodiment, the mounting bracket 41 can be mounted on the cooking range 200, and the cooking range 200 provides a supporting effect on the mounting bracket 41, so that the sliding sleeve 43 and the wall suction hood 30 are more stable during the moving process. Of course, in some other embodiments, the mounting bracket 41 can also be fixed on the wall 400, or disposed on other supporting structures in the kitchen.

[0042] Further, in order to facilitate the fixation of the sliding sleeve 43 and the adjusting rod 42, in this embodiment, the adjusting assembly 40 further includes a locking member 44. The locking member 44 is disposed on the sliding sleeve 43 and is used to lock and fix the sliding sleeve 43 and the adjusting rod 42.

[0043] It should be noted that the locking member 44 can be a locking bolt. When adjusting the height of the wall suction hood 30, the locking bolt can be loosened first, and then the sliding sleeve 43 is slid. After the height is determined, the locking bolt is tightened and abutted against the adjusting rod 42 for fixation. In order to better achieve the fixation, a plurality of threaded holes can also be provided on the adjusting rod 42, and the locking bolt is cooperatively installed with one of the threaded holes. Of course, the locking member 44 can also be a pin shaft. Correspondingly, a plurality of pin holes can also be provided on the adjusting rod 42, and the pin shaft is inserted into one of the pin holes to achieve fixation.

[0044] In addition, it should also be noted that in some other embodiments, the locking member 44 can also not be used, and the sliding sleeve 43 can be directly driven to move by a motor.

[0045] Please continue to combine with Figure 1 In order to adjust the wall suction hood 30 in multiple directions, in this embodiment, the adjusting assembly 40 further includes a magnetic base 45 and a magnetic plate 46. The magnetic base 45 is disposed on the mounting bracket 41, and the magnetic plate 46 is disposed on the side of the mounting bracket 41 away from the wall suction hood 30 and is used for magnetic cooperation with the magnetic base 45.

[0046] Combine with Figure 1 and Figure 2 Specifically, the magnetic plate 46 is disposed on the cooking stove 200, and the mounting bracket 41 is magnetically fixed to the magnetic plate 46 through the magnetic base 45. Before cooking, the magnetic base 45 can be moved relative to the magnetic plate 46 first, so as to drive the mounting bracket 41 and the wall suction hood 30 to move. It is easy to understand that this movement can be a forward and backward movement relative to the cooktop 300, that is, the front and back positions of the wall suction hood 30 and the cookware can be adjusted according to the size of the cookware; at the same time, it can also be moved left and right relative to the cooktop 300, that is, according to the user's usage habit and the actual placement of the cookware on the left cooktop 300 or the right cooktop 300, the left and right positions of the wall suction hood 30 and the cookware are adjusted.

[0047] That is to say, through the cooperation of the magnetic base 45 and the magnetic plate 46, the wall suction hood 30 can be adjusted to move in different positions in the front, back, left and right directions, and through the cooperation of the adjusting rod 42 and the sliding sleeve 43, the wall suction hood 30 can be adjusted in the up and down height positions, thereby further improving the smoking effect.

[0048] Furthermore, in order to better adjust the movement of the magnetic base 45 relative to the magnetic plate 46 and improve the magnetic adsorption stability between the two. In this embodiment, the adjusting assembly 40 further includes a magnetic switch 47, and the magnetic switch 47 is disposed on the magnetic base 45. Through the setting of the magnetic switch 47, when adjusting the position of the wall suction hood 30 in the front, back, left and right directions, first turn the magnetic switch 47 to the off position so that there is no magnetic force between the magnetic base 45 and the magnetic plate 46, and then adjust the magnetic base 45 to move on the magnetic plate 46; when the position of the wall suction hood 30 is adjusted, turn the magnetic switch 47 to the on position, so that a magnetic force is formed between the magnetic base 45 and the magnetic plate 46, thereby realizing the fixation of the two.

[0049] It should be noted that generally, there are two cooktops 300 on the left and right on the cooking stove 200, and cooking operations such as stir-frying and steaming can be carried out simultaneously. Therefore, in order to better collect the oil fumes generated during the simultaneous stir-frying and steaming operations, please continue to combine with Figure 1 and Figure 2 The range hood 100 further includes a top suction hood 50, and the top suction hood 50 is disposed at the bottom of the smoke box 10 and is communicated with the main exhaust pipe 11.

[0050] It is easy to understand that when cooking operations such as stir-frying and steaming are carried out simultaneously, the wall-mounted smoke hood 30 mainly collects the oil fumes generated by stir-frying, while the top-mounted smoke hood 50 mainly collects the oil fumes generated by steaming. Of course, both the wall-mounted smoke hood 30 and the top-mounted smoke hood 50 can also collect the oil fumes generated during the cooking process of the two cooktops 300, thereby further improving the overall capture efficiency of the oil fumes.

[0051] In order to better realize the introduction of the oil fumes inhaled by the top-mounted smoke hood 50 into the main exhaust pipe 11, in this embodiment, the smoke cabinet 10 is further provided with an exhaust branch pipe 12, and the top-mounted smoke hood 50, the exhaust branch pipe 12 and the main exhaust pipe 11 are connected in sequence. Through the setting of the exhaust branch pipe 12, it can also be independently arranged with the folding smoke pipe 20, and the two do not affect each other, improving the exhaust efficiency of the oil fumes.

[0052] Furthermore, the range hood 100 further includes a switch plate 60, and the switch plate 60 is slidably inserted into the exhaust branch pipe 12 for opening or closing the exhaust branch pipe 12. Through the setting of the switch plate 60, when the top-mounted smoke hood 50 does not need to work, that is, when only the cookware on one cooktop 300 is cooking, the switch plate 60 can close the exhaust branch pipe 12, so that the negative-pressure air in the smoke cabinet 10 is only connected to the folding smoke pipe 20, and the oil fumes can be directly collected through the wall-mounted smoke hood 30, which can reduce the air volume generated by the blower 81, thereby saving electric energy and reducing the noise generated when the top-mounted smoke hood 50 works, further improving the user experience and comfort.

[0053] For the convenience of controlling the sliding of the switch plate 60, please refer to Figure 3 , Figure 3 For Figure 1 the partial enlarged view at A in Figures 1 - 3 , in this embodiment, the range hood 100 further includes a driving device 70. The driving device 70 is arranged in the smoke cabinet 10 and is connected to the switch plate 60. The driving device 70 is used to drive the switch plate 60 to slide to open or close the exhaust branch pipe 12.

[0054] Specifically, the driving device 70 includes a driving motor 71 and a screw rod 72. The driving motor 71 and the screw rod 72 are both arranged in the smoke box 10. The driving motor 71 is in transmission connection with the screw rod 72, and the screw rod 72 is connected to the switch plate 60. It can be understood that when stir-frying and steaming are carried out simultaneously, the driving motor 71 works and drives the screw rod 72 to rotate, so that the switch plate 60 moves and opens the exhaust branch pipe 12; the negative pressure generated by the operation of the fan 81 forms a suction force at the top smoke hood 50 and the wall smoke hood 30 at the same time, so as to collect the oil fume generated by stir-frying and steaming. When only stir-frying is carried out, the driving motor 71 drives the screw rod 72 to rotate in the reverse direction, so that the switch plate 60 slides in the reverse direction and closes the exhaust branch pipe 12. At this time, the negative pressure generated by the fan 81 forms a suction force only at the wall smoke hood 30, so as to collect the oil fume generated by stir-frying.

[0055] In summary, the embodiment of the present utility model provides a range hood 100. The range hood 100 includes a smoke box 10, a folding smoke pipe 20, a wall smoke hood 30 and an adjusting component 40. The smoke box 10 is provided with an exhaust main pipe 11. The folding smoke pipe 20 is arranged at the bottom of the smoke box 10 and is communicated with the exhaust main pipe 11; the wall smoke hood 30 is arranged on the side of the folding smoke pipe 20 away from the smoke box 10 and is communicated with the folding smoke pipe 20; the adjusting component 40 is arranged on the side of the wall smoke hood 30 away from the folding smoke pipe 20 and is used for adjusting the relative position between the wall smoke hood 30 and the smoke box 10. By arranging the adjusting component 40, the relative position between the wall smoke hood 30 and the smoke box 10 can be adjusted. In other words, the wall smoke hood 30 can move relative to the cooker 300 arranged on the cooking stove 200, so as to adjust the positional relationship with the cookware according to the size of the cookware on the cooker 300; at the same time, due to the telescopic characteristic of the folding smoke pipe 20, after the wall smoke hood 30 is adjusted to move, it will not affect the normal smoke exhaust of the folding smoke pipe 20.

[0056] Therefore, during cooking, the oil fume generated in the cookware can be inhaled and discharged through the wall smoke hood 30 on one side close to it, thereby reducing the flowing distance of the oil fume, avoiding phenomena such as side leakage and smoke escape, and further improving the overall oil fume capture efficiency and the user's use comfort.

[0057] The above are only specific embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A range hood, characterized in that: include: A smoke exhaust box (10), wherein the smoke exhaust box (10) is provided with a smoke exhaust main pipe (11); A foldable smoke pipe (20), the foldable smoke pipe (20) being arranged at the bottom of the smoke machine box (10) and being connected to the smoke exhaust main pipe (11); a wall-mounted smoke hood (30), the wall-mounted smoke hood (30) being arranged on a side of the folded smoke pipe (20) away from the smoke machine box (10) and being in communication with the folded smoke pipe (20); and An adjustment component (40) is arranged on a side of the wall-mounted smoke hood (30) away from the folded smoke pipe (20) and is used to adjust the relative position between the wall-mounted smoke hood (30) and the smoke machine box (10).

2. The range hood according to claim 1, characterized in that: The adjustment assembly (40) comprises a mounting frame (41), an adjustment rod (42) and a sliding sleeve (43); the mounting frame (41) is arranged at a distance from the side of the wall-mounted smoke hood (30) away from the folding smoke pipe (20); the adjustment rod (42) is arranged on the mounting frame (41); the sliding sleeve (43) is slidably sleeved on the adjustment rod (42), and the sliding sleeve (43) is connected to the wall-mounted smoke hood (30).

3. The range hood according to claim 2, characterized in that: The adjustment assembly (40) further comprises a magnetic seat (45) and a magnetic plate (46); the magnetic seat (45) is arranged on the mounting frame (41); the magnetic plate (46) is arranged on a side of the mounting frame (41) away from the wall-mounted smoke hood (30) and is used for magnetically cooperating with the magnetic seat (45).

4. The range hood according to claim 3, characterized in that: The adjustment component (40) further comprises a magnetic switch (47), and the magnetic switch (47) is arranged on the magnetic seat (45).

5. The range hood according to claim 2, characterized in that: The adjustment assembly (40) further comprises a locking member (44), wherein the locking member (44) is arranged on the sliding sleeve (43) and is used to lock and fix the sliding sleeve (43) and the adjustment rod (42).

6. The range hood according to any one of claims 1 to 5, characterized in that: The range hood (100) further comprises a top smoke exhaust hood (50), wherein the top smoke exhaust hood (50) is arranged at the bottom of the range hood box (10) and is in communication with the smoke exhaust main pipe (11).

7. The range hood according to claim 6, characterized in that: The smoke exhaust cabinet (10) is also provided with a smoke exhaust branch pipe (12), and the top smoke exhaust hood (50), the smoke exhaust branch pipe (12) and the smoke exhaust main pipe (11) are connected in sequence.

8. The range hood according to claim 7, characterized in that: The range hood (100) further comprises a switch plate (60), wherein the switch plate (60) is slidably inserted into the smoke exhaust branch pipe (12) so as to be used for opening or closing the smoke exhaust branch pipe (12).

9. The range hood according to claim 8, characterized in that: The range hood (100) further comprises a driving device (70), wherein the driving device (70) is arranged on the range hood box (10) and connected to the switch plate (60), and the driving device (70) is used to drive the switch plate (60) to slide so as to open or close the smoke exhaust branch pipe (12).

10. The range hood according to claim 9, characterized in that: The driving device (70) comprises a driving motor (71) and a screw (72); the driving motor (71) and the screw (72) are both arranged on the smoke machine box (10); the driving motor (71) is transmission-connected to the screw (72); and the screw (72) is connected to the switch plate (60).

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