Range hood

Abstract

The present application belongs to the technical field of household appliances, and particularly relates to a range hood, aiming at solving the problem that the power consumption of the range hood is wasted in the prior art. The range hood comprises a smoke collecting hood, an oil screen, a baffle, a driving mechanism and a mechanical switch, wherein the oil screen cover is arranged at the opening of the bottom of the smoke collecting hood, the baffle is parallel to the oil screen and movably connected with the oil screen, the baffle and the oil screen define a left air inlet and a right air inlet, the driving mechanism is used for driving the baffle to move, so as to adjust the opening degree of the left air inlet and / or the right air inlet, and the mechanical switch is used for controlling the start and stop of the driving mechanism. Through the above arrangement, when the range hood is running, the user can control the mechanical switch to adjust the opening degree of the left air inlet and the right air inlet, so that the air inlet amount of the left air inlet and the right air inlet is matched with the oil fume amount of the corresponding cooking area, so as to achieve efficient suction of oil fume and save energy consumption.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of household appliances, and particularly relates to a range hood. BACKGROUND

[0002] The range hood is usually installed above the cooking table in the kitchen, and has the characteristic of being able to suck the oil fume generated during cooking, and thus becomes a commonly used electrical appliance in the modern household kitchen.

[0003] For the range hood suitable for the double-eye cooking table, the range hood comprises a machine body, a smoke collecting cover, an oil screen and a centrifugal fan. The smoke collecting cover is arranged below the machine body, the bottom of the smoke collecting cover is provided with an opening, the oil screen cover is arranged at the opening, and the oil screen is formed with a left air inlet corresponding to the left cooking table and a right air inlet corresponding to the right cooking table. The centrifugal fan is arranged in the machine body, and is used for sending the oil fume generated by the left cooking table into the smoke collecting cover through the left air inlet of the oil screen, sending the oil fume generated by the right cooking table into the smoke collecting cover through the right air inlet of the oil screen, and then sending the oil fume in the smoke collecting cover out of the machine body to the kitchen outside, so as to purify the kitchen.

[0004] However, when the working states of the two cooking tables are different or the generated oil fume amounts are different, the suction force of the centrifugal fan on the non-working cooking table or the cooking table with smaller oil fume amount is not fully utilized, resulting in waste of the power consumption of the range hood. SUMMARY

[0005] In order to solve the above problems in the prior art, that is, in order to solve the problem of waste of power consumption of the range hood in the prior art, the present application provides a range hood, which comprises a smoke collecting cover, an oil screen, a baffle, a driving mechanism and a mechanical switch. The bottom of the smoke collecting cover is provided with an opening, the oil screen cover is arranged at the opening and is tightly connected with the smoke collecting cover, the baffle is parallel to the oil screen and is movably connected with the oil screen, and the baffle and the oil screen define a left air inlet and a right air inlet of the range hood. The driving mechanism is used for driving the baffle to move relative to the oil screen, so as to adjust the opening degree of the left air inlet and / or the right air inlet. The mechanical switch is arranged on the smoke collecting cover and is connected with the driving mechanism, and is used for controlling the start and stop of the driving mechanism.

[0006] The range hood as described above, wherein the baffle comprises a left baffle and a right baffle, the left baffle and the right baffle are slidably mounted on the oil screen; the mechanical switch comprises a first mechanical switch and a second mechanical switch, the first mechanical switch is used for controlling the driving mechanism to drive the left baffle to slide left and right, and the second mechanical switch is used for controlling the driving mechanism to drive the right baffle to slide left and right.

[0007] The range hood as claimed in any one of the preceding claims, wherein the driving mechanism comprises a driving motor, a left elastic member and a right elastic member, the left baffle is in driving connection with the driving motor through a left transmission part, and the right baffle is in driving connection with the driving motor through a right transmission part; the first mechanical switch is used for controlling the driving motor to rotate in a first direction to drive the left baffle to slide leftwards, and the left elastic member connects the left baffle and the oil screen and is used for driving the left baffle to reset rightwards; and the second mechanical switch is used for controlling the driving motor to rotate in a direction opposite to the first direction to drive the right baffle to slide rightwards, and the right elastic member connects the right baffle and the oil screen and is used for driving the right baffle to reset leftwards.

[0008] The range hood as claimed in any one of the preceding claims, wherein the left transmission part comprises a first abutting arm mounted on a motor shaft of the driving motor, and the first abutting arm is used for pushing the left baffle to slide leftwards; and the right transmission part comprises a second abutting arm mounted on the motor shaft of the driving motor, and the second abutting arm is used for pushing the right baffle to slide rightwards.

[0009] The range hood as claimed in any one of the preceding claims, wherein an end of the first abutting arm used for abutting against the left baffle is provided with a first roller; and an end of the second abutting arm used for abutting against the right baffle is provided with a second roller.

[0010] The range hood as claimed in any one of the preceding claims, wherein a middle part of the oil screen is provided with a mounting plate, and the driving motor is mounted on the mounting plate.

[0011] The range hood as claimed in any one of the preceding claims, wherein the driving mechanism comprises a first motor and a second motor, the left baffle is in driving connection with the first motor through a left transmission part, and the right baffle is in driving connection with the second motor through a right transmission part; the first mechanical switch is used for controlling the first motor to rotate in opposite directions to drive the left baffle to slide left and right; and the second mechanical switch is used for controlling the second motor to rotate in opposite directions to drive the right baffle to slide left and right.

[0012] The range hood as claimed in any one of the preceding claims, wherein the mechanical switch is provided with a plurality of gears, and each gear is used for controlling an opening degree value of the left air inlet and / or the right air inlet.

[0013] The range hood as claimed in any one of the preceding claims, wherein the mechanical switch is a rotary knob switch.

[0014] The range hood as claimed in any one of the preceding claims, wherein the mechanical switch comprises a plurality of keys, and each key corresponds to one gear.

[0015] The skilled in the art can understand that the range hood of the embodiment of the present application comprises a smoke collecting cover, an oil screen, a baffle, a driving mechanism and a mechanical switch, wherein the oil screen cover is arranged at the opening of the bottom of the smoke collecting cover, the baffle is parallel to the oil screen and movably connected with the oil screen, the baffle and the oil screen define a left air inlet and a right air inlet of the range hood, the driving mechanism is used to drive the baffle to move relative to the oil screen to adjust the opening degree of the left air inlet and / or the right air inlet, and the mechanical switch is used to control the start and stop of the driving mechanism. Through the above arrangement, the mechanical switch is configured to control the driving mechanism to drive the baffle to move to adjust the opening degree of the left air inlet and / or the right air inlet. In use, by judging the amount of oil fume of the cooking area, the user can control the mechanical switch to adjust the opening degree of the left air inlet and the right air inlet, so that the air inlet amount of the left air inlet and the right air inlet is matched with the amount of oil fume of the corresponding cooking area, to achieve efficient suction of oil fume and save energy consumption. BRIEF DESCRIPTION OF DRAWINGS

[0016] The preferred embodiment of the range hood of the embodiment of the present application will be described below with reference to the accompanying drawings. The drawings are as follows:

[0017] Figure 1 It is a schematic diagram of the application of the range hood in the related art;

[0018] Figure 2 It is a schematic diagram of the structure of the range hood in the embodiment of the present application;

[0019] Figure 3 It is a perspective exploded view of an oil screen and a baffle of the range hood in the embodiment of the present application;

[0020] Figure 4 It is a schematic diagram of the cooperation of an oil screen and a baffle in the embodiment of the present application Figure 1 ;

[0021] Figure 5 It is a schematic diagram of the cooperation of an oil screen and a baffle in the embodiment of the present application Figure 2 ;

[0022] Figure 6 It is a schematic diagram of the connection of an oil screen and another baffle of the range hood in the embodiment of the present application;

[0023] Figure 7 It is a schematic diagram of the connection of another oil screen, still another baffle and a driving mechanism of the range hood in the embodiment of the present application;

[0024] Figure 8 It is an exploded schematic diagram of another oil screen, still another baffle and a driving mechanism of the range hood in the embodiment of the present application;

[0025] Figure 9 It is Figure 8 a local enlarged view of A in FIG. 6.

[0026] In the drawings:

[0027] 100: range hood

[0028] 200: double eye cooking range; 201: left eye cooking range; 202: right eye cooking range

[0029] 10: body

[0030] 20: hood

[0031] 30: oil screen; 31: mesh; 32: upper turning edge; 33: lower turning edge; 34: left oil screen; 35: right oil screen

[0032] 40: baffle; 41: left baffle; 42: right baffle

[0033] 50: driving mechanism; 51: driving motor; 52: first abutting arm; 521: first roller; 53: second abutting arm; 531: second roller; 54: left elastic member; 55: right elastic member; 56: mounting plate; 57: sliding rod

[0034] 60: mechanical switch DETAILED DESCRIPTION

[0035] First, those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present application, and are not intended to limit the protection scope of the present application. Those skilled in the art can adjust them as needed in order to adapt to specific application occasions.

[0036] Secondly, it should be noted that in the description of the present application, the terms indicating the direction or position relationship of "inner", "outer" and the like are based on the direction or position relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or member must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0037] In addition, it should be noted that in the description of the present application, unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, and it can be the communication inside two members. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] Figure 1 is a schematic view of the application of the range hood in the related art. As shown in Figure 1As shown, the range hood 100 is arranged above the cooking bench, and is used to suck the oil fume in the cooking bench area into the range hood 100 and then discharge it to the outside of the kitchen. Specifically, when the cooking bench is the double-eye cooking bench 200, the centrifugal fan sends the oil fume of the left cooking bench 201 to the inside of the range hood 100 through the left air inlet on the oil screen 30 corresponding to the left cooking bench 201, and then discharges it, and sends the oil fume of the right cooking bench 202 to the inside of the range hood 100 through the right air inlet on the oil screen 30 corresponding to the right cooking bench 202, and then discharges it, and the entire oil screen 30 uniformly takes in air, and the air intake of the left air inlet and the right air inlet is equivalent.

[0039] However, when one of the cooking benches of the double-eye cooking bench 200 is working and the other is not working, the suction force of the centrifugal fan on the non-working cooking bench does not suck the oil fume, and the suction force does not play a role, or when the oil fume of one of the cooking benches of the double-eye cooking bench 200 is large and the oil fume of the other is small, the centrifugal fan will suck a small amount of oil fume and a large amount of clean air from the cooking bench with small oil fume, and the suction force does not fully play a role, resulting in waste of power consumption of the range hood.

[0040] Therefore, the embodiment of the present application provides a range hood, which is provided with a baffle and a mechanical switch, and a user can make the baffle move to adjust the left air inlet and / or the right air inlet of the oil screen by operating the mechanical switch, so that the air intake of the left air inlet and the right air inlet is different, thereby adapting to the cooking bench in different working states and avoiding useless consumption of power consumption.

[0041] Figure 2 FIG. 1 is a structural schematic diagram of a range hood according to an embodiment of the present application. Figure 1 and Figure 2 The embodiment of the present application provides a range hood 100, which comprises a body 10, a smoke collecting cover 20, an oil screen 30 and a centrifugal fan. The smoke collecting cover 20 is tightly connected with the bottom of the body 10, the bottom of the smoke collecting cover 20 is provided with an opening, the oil screen 30 is arranged at the opening and is tightly connected with the smoke collecting cover 20, and the centrifugal fan is arranged in the body 10.

[0042] The top of the body 10 is provided with an air outlet, the bottom of the body 10 is provided with a suction port, the oil screen 30, the smoke collecting cover 20, the suction port and the air outlet are sequentially communicated and constitute an exhaust air duct for sucking the oil fume generated during cooking, and the centrifugal fan is used to send the oil fume of the cooking bench to the outside of the kitchen through the exhaust air duct, so as to realize purification of the kitchen.

[0043] Specifically, a plurality of long strip-shaped mesh holes 31 are formed on the oil screen 30, and the plurality of long strip-shaped mesh holes 31 are uniformly distributed along the length direction of the oil screen 30, and the oil fume flows into the smoke collecting cover 20 through the mesh holes 31. It can be understood that, as shown in FIG. 2, the oil screen 30 is provided with a plurality of long strip-shaped mesh holes 31, and the plurality of long strip-shaped mesh holes 31 are uniformly distributed along the length direction of the oil screen 30. Figure 2As shown, the long strip-shaped mesh holes 31 can be arranged obliquely, i.e. the long strip-shaped mesh holes 31 are arranged obliquely to the left-right direction of the oil screen 30; or the long strip-shaped mesh holes 31 can also be arranged along the width direction parallel to the oil screen 30.

[0044] The range hood 100 further comprises a baffle 40, a driving mechanism and a mechanical switch 60, the baffle 40 is arranged parallel to the oil screen 30, and the baffle 40 can be arranged on the inner side of the oil screen 30 or on the outer side of the oil screen 30, and the baffle 40 and the oil screen 30 can jointly define a left inlet and a right inlet. Among them, the left inlet corresponds to the left cooking bench 201 of the double-eye stove 200 to suck the oil fume of the left cooking bench 201, and the right inlet corresponds to the right cooking bench 202 of the double-eye stove 200 to suck the oil fume of the right cooking bench 202. Here, "left" refers to the left side of the user facing the cooking bench and the range hood 100, and "right" refers to the right side of the user facing the cooking bench and the range hood 100. It should be pointed out that this configuration is particularly suitable for the range hood 100 which sucks oil fume in a side suction mode, and therefore the oil screen 30 is arranged obliquely relative to the horizontal plane in this example.

[0045] The baffle 40 is movably connected with the oil screen 30, and the baffle 40 can move relative to the oil screen 30 so that the baffle 40 blocks at least part of the mesh holes 31 of the oil screen 30 to open or close the left inlet and the right inlet. The baffle 40 is further drivingly connected with the driving mechanism, and the driving mechanism is used to drive the baffle 40 to move, and the amount of movement of the baffle 40 is controlled to adjust the amount of blocking of the baffle 40 to the oil screen 30, so as to adjust the opening degree of the left inlet and / or the right inlet.

[0046] Among them, the movement of the baffle 40 relative to the oil screen 30 should be understood in a broad sense, i.e. the baffle 40 can slide relative to the oil screen 30, and the baffle 40 can also rotate relative to the oil screen 30. It can be understood that the opening degree of the left inlet and the right inlet each includes three states: a closed state, a fully open state and an intermediate state, the fully open state means that the left inlet / right inlet is opened to the maximum, and the intermediate state means that the left inlet / right inlet is opened and the opening degree is not the maximum.

[0047] The driving mechanism is further connected with the mechanical switch 60, and the mechanical switch 60 is used to control the start and stop of the driving mechanism, so that the user can control the driving mechanism to drive the baffle 40 to move to adjust the opening degree of the left inlet and / or the right inlet by operating the mechanical switch 60. That is, the mechanical switch 60 can control the driving mechanism to run, so that the baffle 40 moves to an appropriate position, and then operating the mechanical switch 60 can make the driving mechanism stop, so as to keep the inlet at an opening degree.

[0048] The mechanical switch 60 is arranged on the hood 20 so as to be operated by the user. Illustratively, the range hood 100 can further comprise a control panel arranged on the hood 20, and the mechanical switch 60 can be arranged on the control panel. Of course, a power switch for controlling the power supply of the range hood 100 can also be arranged on the control panel.

[0049] In this way, when the user uses the range hood 100 and only uses the left cooking zone 201 of the dual-eye cooking zone 200 to cook food and the right cooking zone 202 is idle, only the left area of the cooking zone is formed with oil fume, at this time, the user can control the mechanical switch 60 to drive the driving mechanism to drive the baffle 40 to move until the right air inlet is closed and the left air inlet is opened to the maximum, and then the user controls the mechanical switch 60 to stop the driving mechanism from running, so that the air inlet amount of the left air inlet is increased and the right air inlet has no air inlet amount during cooking, thereby enabling the range hood 100 to concentrate on sucking the oil fume of the left cooking zone 201, improving the utilization rate of the range hood 100, and being conducive to avoiding waste of the power consumption of the range hood 100.

[0050] When the user uses the left cooking zone 201 of the dual-eye cooking zone 200 to cook porridge and the right cooking zone 202 to stir-fry, the oil fume of the left area of the cooking zone is small and the oil fume of the right area is large, at this time, the user can control the mechanical switch 60 to drive the driving mechanism to drive the baffle 40 to move, so that the right air inlet is increased and the left air inlet is decreased until the air inlet amount of the right air inlet and the oil fume amount of the right cooking zone 202 are matched and the air inlet amount of the left air inlet and the oil fume amount of the left cooking zone 201 are matched, and then the user controls the mechanical switch 60 to stop the driving mechanism from running, thereby ensuring that during cooking, the left area of the cooking zone will not have a large amount of clean air sucked in while the oil fume of the right area of the cooking zone is sucked in as much as possible, thereby being conducive to avoiding waste of the power consumption of the range hood 100.

[0051] In summary, the range hood 100 provided by the embodiment of the present application is configured to control the driving mechanism to drive the baffle 40 to move to adjust the opening degree of the left air inlet and / or the right air inlet. When in use, the user can control the mechanical switch 60 according to the oil fume amount of the cooking zone area, so as to adjust the opening degree of the left air inlet and the right air inlet, so that the air inlet amount of the left air inlet and the right air inlet is matched with the oil fume amount of the corresponding cooking zone area, to achieve efficient suction of oil fume and save energy consumption.

[0052] When the baffle 40 rotates relative to the oil screen 30 to open or close the air inlet, taking the screen holes 31 of the oil screen 30 as an example, the baffle 40 can include a frame and a plurality of blades, the plurality of blades are arranged in the frame along the length direction of the oil screen 30, each blade extends along the axis direction parallel to the screen holes 31 and both ends are rotatably connected with the frame, and each blade corresponds to one screen hole 31 and adjusts the opening of the screen hole 31 by rotating, so as to realize the adjustment of the air inlet.

[0053] When the air inlet is in the closed state, each blade is parallel to the oil screen 30, each screen hole 31 is completely shielded by the corresponding blade, and the corresponding air inlet is closed; when the air inlet is in the fully open state, each blade can be perpendicular to the oil screen 30, and the blade does not shield the corresponding screen hole 31; when the air inlet is in the intermediate state, each blade is inclined to the oil screen 30, and the blade has a shielding effect on the corresponding screen hole 31.

[0054] Specifically, the plurality of blades are also connected through the linkage rod; the driving mechanism includes a rotating shaft and a motor, the rotating shaft is connected with one blade of the plurality of blades, and the motor is in transmission connection with the rotating shaft. The motor drives the rotating shaft to rotate, and then the one blade rotates, and the other blades also rotate under the driving of the linkage rod, so that the opening of the screen hole 31 is adjusted. In the embodiment, the mechanical switch 60 is used to control the start and stop of the motor, so that the user can control the mechanical switch 60 to drive the blade to rotate or stop, so as to realize the opening adjustment of the air inlet.

[0055] Figure 3 It is a perspective view of an oil screen and a baffle of the range hood in the embodiment of the application. When the baffle 40 slides relative to the oil screen 30 to open or close the air inlet, the baffle 40 is a plate-shaped structure, the oil screen 30 is formed with a slide way, the slide way extends along the length direction of the oil screen 30, and the baffle 40 is slidably arranged in the slide way to cover the screen holes 31 of the oil screen 30; the driving mechanism is used to drive the baffle 40 to slide left and right.

[0056] Specifically, as shown in Figure 3 , the oil screen 30 includes an oil screen body, the upper side of the oil screen body is formed with an upper turning edge 32, the lower side of the oil screen body is formed with a lower turning edge 33, the upper turning edge 32 and the lower turning edge 33 are located on the inner side or the outer side of the oil screen 30, the upper turning edge 32 and the lower turning edge 33 are oppositely arranged and extend along the length direction of the oil screen 30, and the oil screen body, the upper turning edge 32 and the lower turning edge 33 jointly define the slide way.

[0057] In Figure 3 , the baffle 40 is arranged on the inner side of the oil screen 30, and Figure 3 it is a schematic view of the inner side of the oil screen 30, so the Figure 3 right side shown is the left side when the user faces the range hood 100, Figure 3The left side shown is the right side of the user facing the range hood 100.

[0058] It is worth mentioning that whether the baffle 40 is slidingly connected to the oil screen 30 or rotatably connected to the oil screen 30, the baffle 40 and the driving mechanism can be configured to enable the opening degrees of the left and right air inlets to be adjusted simultaneously or can be configured to enable the opening degrees of the left and right air inlets to be adjusted individually. The configuration of the baffle 40 and the driving mechanism is described below with the baffle 40 slidingly connected to the oil screen 30 as an example.

[0059] In an example, as shown in FIG. 1, the baffle 40 can be provided only one, the baffle 40 is slidingly connected to the oil screen 30, and the length of the baffle 40 along the sliding direction is less than the distance between the leftmost mesh hole 31 and the rightmost mesh hole 31 of the oil screen 30, that is, the baffle 40 cannot completely block the mesh holes 31 of the oil screen 30. In this example, the baffle 40 slides to simultaneously adjust the opening degrees of the left and right air inlets. Figure 3

[0060] Figure 4 A schematic diagram of cooperation of an oil screen and a baffle in an embodiment of the present application is shown in FIG. 2. Figure 1 .In the example shown in FIG. 2, the baffle 40 is slidingly arranged at the middle of the oil screen 30, and the mesh holes 31 on the left and right sides of the oil screen 30 are not completely blocked by the baffle 40. Therefore, the left and right air inlets defined by the oil screen 30 and the baffle 40 are both in the intermediate state, and the opening degrees of the left and right air inlets can be different. This example is particularly suitable for a situation in which both of the two cooking tops are working, and the amount of oil fume of one cooking top is large, and the amount of oil fume of the other cooking top is small. Figure 4

[0061] Figure 5 A schematic diagram of cooperation of an oil screen and a baffle in an embodiment of the present application is shown in FIG. 3. Figure 2 .In the example shown in FIG. 3, the baffle 40 is slidingly arranged at the left side of the oil screen 30, the mesh holes 31 on the left side of the oil screen 30 are blocked by the baffle 40, and the mesh holes 31 on the right side of the oil screen 30 are not blocked by the baffle 40. Therefore, the left air inlet defined by the oil screen 30 and the baffle 40 is in the closed state, and the right air inlet is in the completely open state. This example is particularly suitable for a situation in which the left cooking top 201 is not working, and the right cooking top 202 is working. Figure 5

[0062] A schematic diagram of connection of an oil screen and another baffle of a range hood in an embodiment of the present application is shown in FIG. 4. In another example, as shown in FIG. 4, the baffle 40 can be provided only one, the baffle 40 is slidingly connected to the oil screen 30, and the length of the baffle 40 along the sliding direction is less than the distance between the leftmost mesh hole 31 and the rightmost mesh hole 31 of the oil screen 30, that is, the baffle 40 cannot completely block the mesh holes 31 of the oil screen 30. In this example, the baffle 40 slides to simultaneously adjust the opening degrees of the left and right air inlets. Figure 6 Figure 6 ​As shown, the baffle 40 can also include a left baffle 41 and a right baffle 42, the left baffle 41 and the left side of the oil screen 30 together define a left air inlet of the range hood 100, the left baffle 41 is slidably mounted on the oil screen 30 to adjust the opening degree of the left air inlet; the right baffle 42 and the right side of the oil screen 30 together define a right air inlet of the range hood 100, the right baffle 42 is slidably mounted on the oil screen 30 to adjust the opening degree of the right air inlet.

[0063] In this example, the mechanical switch 60 can include a first mechanical switch and a second mechanical switch, the first mechanical switch is used to control the driving mechanism to drive the left baffle 41 to slide left and right, and the second mechanical switch is used to control the driving mechanism to drive the right baffle 42 to slide left and right. That is, by operating the first mechanical switch, the movement of the left baffle 41 can be controlled to adjust the left air inlet, and by operating the second mechanical switch, the movement of the right baffle 42 can be controlled to adjust the right air inlet. As can be seen, the left air inlet and the right air inlet can be adjusted separately by the first mechanical switch and the second mechanical switch, respectively, so that the range hood 100 of the present embodiment can be suitable for more situations, and it is convenient for the user to find the mechanical switch corresponding to the air inlet to be adjusted to operate.

[0064] Wherein, when the left baffle 41 completely covers the mesh holes 31 on the left side of the oil screen 30, the left air inlet is in a closed state; when the left baffle 41 covers part of the mesh holes 31 on the left side of the oil screen 30, the left air inlet is in an intermediate state; when the left baffle 41 does not cover any mesh hole 31 on the left side of the oil screen 30, the left air inlet is in a fully open state. Similarly, the right baffle 42 completely covers, partially covers or does not cover the mesh holes 31 on the right side of the oil screen 30.

[0065] When the user does not cook food, i.e. both cooking zones are not working, the left baffle 41 can be driven to completely cover the left air inlet, and the right baffle 42 can be driven to completely cover the right air inlet, so that the left air inlet and the right air inlet are both in a closed state, which is conducive to preventing the odor of the exhaust air duct from escaping into the kitchen through the left air inlet and / or the right air inlet.

[0066] Further, when the baffle 40 includes the left baffle 41 and the right baffle 42, the left baffle 41 and the right baffle 42 can be driven by one power source, or can be driven by two power sources respectively.

[0067] In an alternative embodiment, the left baffle 41 and the right baffle 42 are driven by two power sources respectively. Specifically, the driving mechanism can include a first motor, a second motor, a left transmission part and a right transmission part, the first motor is in transmission connection with the left baffle 41 through the left transmission part, and the second motor is in transmission connection with the right baffle 42 through the right transmission part. Moreover, a first mechanical switch is used to control the first motor to reverse rotation, so as to drive the left baffle 41 to slide left and right; and a second mechanical switch is used to control the second motor to reverse rotation, so as to drive the right baffle 42 to slide left and right.

[0068] Therefore, the user can press the first mechanical switch to control the first motor to start and stop, so as to drive the left baffle 41 to slide to adjust the left air inlet, and press the second mechanical switch to control the second motor to start and stop, so as to drive the right baffle 42 to slide to adjust the right air inlet. The user can easily distinguish the functions of the two mechanical switches, and then it is convenient to control and adjust the left air inlet and / or the right air inlet.

[0069] Exemplarily, the left transmission part can include a gear and a rack, the gear is sleeved on the motor shaft of the first motor, the rack extends along the length direction of the oil screen 30 and is in fastening connection with the left baffle 41, and the rack is in meshing connection with the gear, so as to convert the rotary motion of the first motor into the linear motion of the rack. The first motor drives the gear to rotate, and then drives the rack to move, so that the left baffle 41 connected with the rack also moves along the left and right directions.

[0070] Wherein, the left transmission part and the first motor can be arranged on any side of the left baffle 41, as long as the left transmission part can drive the left baffle 41 to move. For example, the first motor is arranged below the left baffle 41, a notch is arranged on the lower turning edge 33 of the oil screen 30, the rack is arranged on the lower side of the left baffle 41 and located in the notch, the length of the notch is less than the length of the left baffle 41, one end of the rack is located at a first position when the left air inlet is in the fully open state, one end of the rack is located at a second position when the left air inlet is in the closed state, and the length of the rack is not greater than the distance between the first position and the second position, so as to avoid the interference between the left baffle 41 and the side wall of the notch. Alternatively, the left transmission part and the first motor can also be arranged between the left baffle 41 and the right baffle 42, and the left transmission part is connected with the side of the left baffle 41 close to the right baffle 42.

[0071] It should also be understood that the initial state of the left baffle 41 can exist in multiple situations, according to the relative position relationship between the left baffle 41 and the oil screen 30 in the initial state, the opening degree of the left air inlet can be configured to decrease when the left baffle 41 slides left, to increase when the left baffle 41 slides right, etc. Moreover, there is a one-to-one corresponding relationship between the running state of the first motor and the sliding direction of the left baffle 41, so that the first motor rotates forward to drive the left baffle 41 to slide left, or the first motor reverses to drive the left baffle 41 to slide left. It can be seen that the running state of the first motor, the sliding direction of the left baffle 41 and the opening degree of the left air inlet have a determined corresponding relationship.

[0072] For example, the left transmission part and the first motor are arranged between the left baffle 41 and the right baffle 42, in the initial state, the left baffle 41 completely covers the mesh holes 31 on the left side of the oil screen 30 and there is a distance between the left baffle 41 and the left side of the oil screen 30, the first motor is reversely rotated to drive the left baffle 41 to slide left so that the left baffle 41 gradually opens the left air inlet, and the opening degree of the left air inlet is increased; on the contrary, the first motor is forwardly rotated to drive the left baffle 41 to slide right so that the part of the left baffle 41 covering the left air inlet is increased, and the opening degree of the left air inlet is decreased.

[0073] It is worth mentioning that the first mechanical switch can be used to control the forward rotation, reverse rotation and stop of the first motor at the same time, compared with arranging multiple first mechanical switches to control the forward rotation, reverse rotation and stop of the first motor respectively, the number of mechanical switches 60 is simplified, and the user does not need to specially distinguish the functions of each first mechanical switch. Specifically, taking the first mechanical switch as a key as an example, the first mechanical switch can be configured to be pressed once to control the reverse rotation of the first motor, pressed twice to control the stop of the first motor, pressed three times to control the forward rotation of the first motor, and pressed four times to control the stop of the first motor.

[0074] The specific structure of the right transmission part is similar to that of the left transmission part, and those skilled in the art can obviously understand the structure and cooperation relationship of the right transmission part, the second motor, the right baffle 42 and the second mechanical switch after reading the above technical solutions, and the embodiment will not be described here.

[0075] An exemplary working process of the range hood 100 in the embodiment is as follows: when only the left cooktop 201 of the double-eye stove 200 is used to cook food and the right cooktop 202 is idle, only the left area of the cooktop forms oil fume, at this time, the user can press the first mechanical switch once to make the first motor reverse, the first motor drives the left baffle 41 to slide left to make the part of the left baffle 41 covering the left air inlet decrease, and the left air inlet is increased; until the left baffle 41 completely does not cover the left side of the oil screen 30, the user presses the first mechanical switch again to make the first motor stop, at this time, the left air inlet is in a completely open state; after cooking is completed, the user presses the first mechanical switch for the third time to make the first motor forward, the first motor drives the left baffle 41 to slide right to make the part of the left baffle 41 covering the left air inlet increase, and the left air inlet is decreased; until the left baffle 41 covers all the mesh holes 31 on the left side of the oil screen 30, the user presses the first mechanical switch for the fourth time to make the first motor stop.

[0076] Figure 7 FIG. 6 is a connection diagram of another oil screen, another baffle and a driving mechanism of the range hood in the embodiment of the present application, Figure 8 FIG. 7 is an exploded diagram of another oil screen, another baffle and a driving mechanism of the range hood in the embodiment of the present application,Figure 9 For Figure 8 A local enlarged view of the middle A. Referring to Figure 7 to Figure 9 As an alternative embodiment, the driving mechanism 50 can also include a driving motor 51, a left transmission part and a right transmission part, the left baffle 41 is in transmission connection with the driving motor 51 through the left transmission part, and the right baffle 42 is in transmission connection with the driving motor 51 through the right transmission part. A first mechanical switch is used to control the driving motor 51 to rotate in a first direction to drive the left baffle 41 to slide leftward, and a second mechanical switch is used to control the driving motor 51 to rotate in the opposite direction of the first direction to drive the right baffle 42 to slide rightward. Here, the first direction can refer to the direction of reverse rotation of the driving motor 51, and conversely, the opposite direction of the first direction refers to the direction of forward rotation of the driving motor 51; or, the first direction can also refer to the direction of forward rotation of the driving motor 51, and conversely, the opposite direction of the first direction refers to the direction of reverse rotation of the driving motor 51.

[0077] Since only one driving motor 51 is provided, the driving motor 51 cannot rotate in two opposite directions at the same time, and therefore, at the same time, the driving motor 51 can only drive one of the left baffle 41 and the right baffle 42 to slide. The driving motor 51 can be a stepping motor or a servo motor, and the present embodiment does not limit this.

[0078] It is worth noting that at this time, the first mechanical switch and the second mechanical switch cannot be operated at the same time, that is, when one of the first mechanical switch and the second mechanical switch is operated, the other is in a reset state.

[0079] It can be understood that in the initial state, there is a certain distance between the left baffle 41 and the left side of the oil screen 30, so that the left baffle 41 can slide leftward to adjust the opening degree of the left air inlet. Of course, according to the relative position relationship between the left baffle 41 and the oil screen 30 in the initial state, the opening degree of the left air inlet can be reduced or increased when the left baffle 41 slides leftward.

[0080] Similarly, in the initial state, there is also a certain distance between the right baffle 42 and the right side of the oil screen 30, so that the right baffle 42 can slide rightward to adjust the opening degree of the right air inlet. Of course, according to the relative position relationship between the right baffle 42 and the oil screen 30 in the initial state, the opening degree of the right air inlet can be reduced or increased when the right baffle 42 slides rightward.

[0081] In addition, in the present embodiment, the driving mechanism 50 further includes a left elastic member 54 and a right elastic member 55, the left elastic member 54 connects the left baffle 41 and the oil screen 30 and is used to drive the left baffle 41 to reset rightward, and the right elastic member 55 connects the right baffle 42 and the oil screen 30 and is used to drive the right baffle 42 to reset leftward.

[0082] The left elastic member 54 and the right elastic member 55 can be springs or elastic sheets, and the present embodiment does not limit the same. Taking the left elastic member 54 and the right elastic member 55 as springs as an example, the left elastic member 54 and the right elastic member 55 both extend along the length direction of the oil screen 30. One end of the left elastic member 54 abuts against the left side of the oil screen 30, and the other end of the left elastic member 54 abuts against the left side of the left baffle 41. One end of the right elastic member 55 abuts against the right side of the oil screen 30, and the other end of the right elastic member 55 abuts against the right side of the right baffle 42.

[0083] Further, as shown in Figure 7 The driving mechanism 50 further includes a slide rod 57, which extends along the length direction of the oil screen 30. The two ends of the slide rod 57 are connected to the left and right sides of the oil screen 30, respectively. The left baffle 41 and the right baffle 42 are both sleeved on the slide rod 57 and can slide relative to the slide rod 57. The left elastic member 54 and the right elastic member 55 are also sleeved on the slide rod 57. Thus, the slide rod 57 not only provides a mounting mode for the left elastic member 54 and the right elastic member 55, but also enables the left baffle 41 and the right baffle 42 to be stably slid in the slide way, so as to prevent the left baffle 41 and the right baffle 42 from being separated from the slide way.

[0084] Specifically, the left side of the left baffle 41 is formed with a first left flange, and the right side of the left baffle 41 is formed with a first right flange. The first left flange and the first right flange are oppositely arranged and located on the same side of the left baffle 41. The first left flange is provided with a first through hole, and the first right flange is provided with a second through hole. The left side of the right baffle 42 is formed with a second left flange, and the right side of the right baffle 42 is formed with a second right flange. The second left flange and the second right flange are oppositely arranged and located on the same side of the right baffle 42. The second left flange is provided with a third through hole, and the second right flange is provided with a fourth through hole. The first through hole, the second through hole, the third through hole, and the fourth through hole are coaxial. The slide rod 57 sequentially passes through the first through hole, the second through hole, the third through hole, and the fourth through hole.

[0085] Taking the initial state in which the left air inlet and the right air inlet are both opened to the maximum as an example, when only the left cooking zone 201 of the dual-eye cooking zone 200 is used to cook food and the right cooking zone 202 is idle, only the left area of the cooking zone forms oil fume. At this time, the user can operate the second mechanical switch to make the driving motor 51 rotate in the opposite direction of the first direction, so as to make the right baffle 42 slide to the right, and the opening degree of the right air inlet gradually decreases until the right air inlet is closed. At this time, the negative pressure and the air inlet amount of the left air inlet increase. The user can continue to operate the second mechanical switch to make the driving motor 51 stop working, and the right baffle 42 stops moving. After cooking is completed, the user can operate the first mechanical switch to make the driving motor 51 rotate in the first direction. In this process, the right baffle 42 moves to the left under the action of the elastic force of the right elastic member 55 until the left air inlet and the right air inlet are both opened to the maximum. Then, the user can continue to operate the first mechanical switch to make the driving motor 51 stop working.

[0086] By the above arrangement, compared with the driving mechanism 50 comprising two motors, the driving mechanism 50 of the embodiment only has one motor, and the number of power sources is less, which is conducive to simplifying the structure of the driving mechanism 50.

[0087] Specifically, in the embodiment, the driving mechanism 50 is arranged between the left baffle 41 and the right baffle 42, so as to simultaneously connect the left transmission part and the right transmission part by using one driving motor 51.

[0088] The preferred implementation manner of the embodiment is that the middle part of the oil screen 30 is provided with a mounting plate 56, the mounting plate 56 separates the oil screen 30 into two parts of the left oil screen 34 and the right oil screen 35, and the driving mechanism 50 is arranged on the mounting plate 56. Among them, the mounting plate 56 is fastened and connected with the right side of the left oil screen 34 and the left side of the right oil screen 35, so that the mounting plate 56 can be stably mounted, and then the driving mechanism 50 can be stably operated. Therefore, the mounting plate 56 provides a possibility for the installation of the driving mechanism 50. In the embodiment, the left oil screen 34 and the left baffle 41 jointly define the left air inlet, and the right oil screen 35 and the right baffle 42 jointly define the right air inlet.

[0089] Exemplarily, the left transmission part and the right transmission part can also be composed of a gear and a rack. Specifically, the left transmission part comprises a first rack for driving the left baffle 41 to move, and the right transmission part comprises a second rack for driving the right baffle 42 to move, and the first rack and the second rack are connected as an integral structure and extend along the length direction of the oil screen 30, and the left transmission part and the right transmission part share one gear, and the gear is engaged with the first rack or the second rack. Among them, the first rack can be fastened and connected with the left baffle 41, or can abut against the left baffle 41 under the driving action of the driving motor 51.

[0090] Alternatively, Figure 7 In the example shown, the left transmission part comprises a first abutting arm 52 mounted on the motor shaft of the driving motor 51, and the first abutting arm 52 is used to push the left baffle 41 to slide to the left, and the right transmission part comprises a second abutting arm 53 mounted on the motor shaft of the driving motor 51, and the second abutting arm 53 is used to push the right baffle 42 to slide to the right. Among them, the first abutting arm 52 is close to the left baffle 41, and the second abutting arm 53 is close to the right baffle 42. By such an arrangement, compared with arranging only one abutting arm to abut against the left baffle 41 and the right baffle 42, it is conducive to reducing the rotation range of the driving motor 51.

[0091] Further, the end of the first abutting arm 52 for abutting against the left baffle 41 is provided with a first roller 521, and the end of the second abutting arm 53 for abutting against the right baffle 42 is provided with a second roller 531. In this way, the first abutting arm 52 and the left baffle 41 are in sliding contact, and the second abutting arm 53 and the right baffle 42 are in sliding contact, which is conducive to reducing the friction.

[0092] Further, the first abutting arm 52 and the second abutting arm 53 can be formed as an integral structure through an integral molding process. In this way, on the one hand, the mounting process between the first abutting arm 52 and the second abutting arm 53 is omitted, and the mounting efficiency is improved, and on the other hand, the strength of the first abutting arm 52 and the second abutting arm 53 is improved without increasing the cost.

[0093] In the above embodiment, as shown in Figure 7 The baffle 40 is also in a mesh shape, and a plurality of through holes are arranged on the baffle 40. The number, size, shape, and arrangement of the through holes are the same as those of the mesh holes 31 of the oil screen 30. It should be noted that the distance between two adjacent through holes along the length of the baffle 40 is not less than the width of the mesh hole 31, so that the part between the two through holes on the baffle 40 can completely block the mesh hole 31.

[0094] It can be understood that when each through hole of the baffle 40 is opposite to one mesh hole 31 of the oil screen 30, the opening degree of the air inlet defined by the baffle 40 and the oil screen 30 is the largest, and the air outlet is in a completely open state. When the baffle 40 slides leftward or rightward by a certain distance, the through holes of the baffle 40 are misaligned with the corresponding mesh holes 31 of the oil screen 30 by a part, and the part between the two through holes on the baffle 40 blocks a part of each mesh hole 31, so that the air inlet defined by the baffle 40 and the oil screen 30 is in an intermediate state. When the baffle 40 continues to slide leftward or rightward until the part between the two through holes on the baffle 40 completely blocks the mesh hole 31, the air inlet is closed.

[0095] In other embodiments, the mechanical switch 60 can also be configured with a plurality of gears, and each gear is used to control the opening degree value of the left air inlet and / or the right air inlet. In this way, the user can control the mechanical switch 60 to a certain gear according to the judgment of the size of the oil fume of the cooking bench, so that the left air inlet and / or the right air inlet is adjusted to a certain opening degree, and then the air inlet amount of the left air inlet and the air inlet amount of the right air inlet can be matched with the oil fume amount of the corresponding cooking bench, so as to avoid waste of energy consumption.

[0096] The opening and closing state and the opening degree value of the left air inlet and the right air inlet have a unique determination relationship. For example, when the left air inlet is in a closed state, the opening degree value of the left air inlet is 0, when the left air inlet is in a completely open state, the opening degree value of the left air inlet is 1, and when the left air inlet is in an intermediate state, the opening degree value of the left air inlet is between 0 and 1, for example, the opening degree value of the left air inlet can be , , and so on.

[0097] From the above, it can be seen that each gear of the mechanical switch 60 corresponds to an opening value of the left inlet or the right inlet. When the opening value of the left inlet or the right inlet in the initial state is 1, the mechanical switch 60 at least includes a gear for controlling the opening value adjustment of the left inlet or the right inlet to 0; conversely, when the opening value of the left inlet or the right inlet in the initial state is 0, the mechanical switch 60 at least includes a gear for controlling the opening value adjustment of the left inlet or the right inlet to 1. The following takes the opening value of the left inlet or the right inlet in the initial state as 1 as an example for description.

[0098] Specifically, if the driving motor 51, the first motor and the second motor are step motors, each gear of the mechanical switch 60 can be used to control the rotation step number of the above-mentioned motors, so that the motor drives the baffle 40 to move until the rotation reaches a certain step number, at which time the left inlet or the right inlet is adjusted to the opening value corresponding to the gear. If the driving motor 51, the first motor and the second motor are servo motors, each gear of the mechanical switch 60 can be used to control the rotation time of the above-mentioned motors, so that the motor drives the baffle 40 to move until the rotation reaches a certain time, at which time the left inlet or the right inlet is adjusted to the opening value corresponding to the gear.

[0099] It can be understood that each gear of the mechanical switch 60 controls the rotation step number or rotation time of the above-mentioned motors, and the corresponding program code is configured. These program codes can be written in the controller of the range hood 100.

[0100] Alternatively, the mechanical switch 60 can be a knob switch, which has multiple gears. When the range hood 100 is running, the user can adjust the left inlet or the right inlet to a certain opening value by rotating the mechanical switch 60. Thus, it is not necessary to set too many mechanical switches 60.

[0101] Exemplarily, when the driving mechanism 50 includes the first motor and the second motor, the first motor and the second motor are step motors, the first mechanical switch is used to control the forward and reverse rotation of the first motor, and the second mechanical switch is used to control the forward and reverse rotation of the second motor, the first mechanical switch can include a first gear and a first reset gear, a second gear and a second reset gear, the first gear is used to control the forward rotation of the first motor by a first step number, so that the left baffle 41 slides left and right to make the opening value of the left inlet reach , the first reset gear is used to control the reverse rotation of the first motor by the first step number, so that the left inlet resets from the opening value of to the initial state; the second gear is used to control the forward rotation of the first motor by a second step number, so that the left baffle 41 slides left and right to make the opening value of the left inlet reach , the second reset gear is used to control the first motor to reverse for a second number of steps, so that the left air inlet is reset from an opening value of to the initial state.

[0102] The second mechanical switch can include a third gear and a third reset gear, a fourth gear and a fourth reset gear, the third gear is used to control the second motor to reverse for a first number of steps, so that the right baffle 42 slides left and right to make the opening value of the right air inlet reach , the third reset gear is used to control the second motor to rotate forward for a first number of steps, so that the right air inlet is reset from an opening value of to the initial state; the fourth gear is used to control the second motor to reverse for a second number of steps, so that the right baffle 42 slides left and right to make the opening value of the right air inlet reach , the fourth reset gear is used to control the second motor to reverse for a second number of steps, so that the right air inlet is reset from an opening value of to the initial state.

[0103] When only the left cooking zone 201 of the double-eye cooking zone 200 is used to cook food, and the right cooking zone 202 is idle, that is, only the left area of the cooking zone is formed with oil fume, the user can rotate the second mechanical switch to the fourth gear, and the opening value of the right air inlet is adjusted to 0, at this time, the left air inlet is opened to the maximum, and the right air inlet is closed, so that the air inlet amount of the left air inlet is increased to effectively suck the oil fume generated during cooking. After cooking, the user rotates the second mechanical switch to the fourth reset gear, and the opening value of the right air inlet can return to 1, so as to facilitate the next operation of the range hood 100.

[0104] In the embodiment, the first mechanical switch and the second mechanical switch can each be provided with multiple gears, and each first mechanical switch and second mechanical switch is configured with one gear and one corresponding reset gear, so as to facilitate the user to distinguish and operate.

[0105] Alternatively, the mechanical switch 60 can also include multiple keys, and each key corresponds to one gear. When the range hood 100 is running, the user can adjust the left air inlet or the right air inlet to a certain opening value by pressing the mechanical switch 60.

[0106] Exemplarily, when the driving mechanism 50 includes a driving motor 51, the driving motor 51 is a stepping motor, the first mechanical switch is used to control the driving motor 51 to rotate in a first direction, and the second mechanical switch is used to control the driving motor 51 to rotate in a second direction, the first mechanical switch can include a first key and a second key, the first key is used to control the driving motor 51 to rotate forward for a third number of steps, so that the left baffle 41 slides to the left to make the opening value of the left air inlet reach , and the second key is used to control the driving motor 51 to rotate forward for a fourth number of steps, so that the left baffle 41 slides to the left to make the opening value of the left air inlet reach 0.

[0107] The second mechanical switch can include a third key and a fourth key, the third key being used to control the driving motor 51 to reverse a third number of steps so that the right baffle 42 slides to the right to make the opening degree value of the right air inlet reach , and the fourth key being used to control the driving motor 51 to reverse a fourth number of steps so that the right baffle 42 slides to the right to make the opening degree value of the right air inlet reach 0.

[0108] It is worth noting that the third number of steps is less than the fourth number of steps; and the first key and the third key are mutual reset switches, and the second key and the fourth key are mutual reset switches.

[0109] When the user uses the left cooking zone 201 of the double-eye cooking range 200 to cook porridge and the right cooking zone 202 to stir-fry, the oil fume of the left area of the cooking zone is small and the oil fume of the right area is large, the user can press the first key to make the opening degree value of the left air inlet adjusted to , at this time, the left air inlet is adjusted to be small and the right air inlet is opened to the maximum, so that the air inlet amount of the left air inlet is small and the air inlet amount of the right air inlet is large, so that the left area of the cooking zone will not have a large amount of clean air sucked in during the cooking process, and at the same time, the oil fume in the right area of the cooking zone can be sucked in as much as possible. After cooking, the user presses the third key again, so that the opening degree value of the left air inlet can return to 1, so as to facilitate the next operation of the range hood 100.

[0110] So far, the technical solutions of the present application have been described in combination with the preferred embodiments shown in the drawings, but those skilled in the art can easily understand that the protection scope of the present application is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to related technical features without departing from the principles of the present application, and the technical solutions after these changes or replacements will fall within the protection scope of the present application.

Claims

1. A range hood, characterized in that, The range hood comprises: a fume hood, the bottom of which is provided with an opening; an oil screen, which covers the opening and is fixedly connected with the fume hood; a baffle, which is parallel to the oil screen and movably connected with the oil screen, and which, together with the oil screen, defines left and right air inlets of the range hood; a driving mechanism, which drives the baffle to move relative to the oil screen, so as to adjust the opening degree of the left and / or right air inlets; a mechanical switch, which is arranged on the fume hood and connected with the driving mechanism, and which is used to control the start and stop of the driving mechanism; the baffle comprises a left baffle and a right baffle, which are slidably mounted on the oil screen; the driving mechanism comprises a driving motor, a left elastic member and a right elastic member, the left baffle is drivingly connected with the driving motor through a left transmission part, and the right baffle is drivingly connected with the driving motor through a right transmission part; the left elastic member connects the left baffle and the oil screen, and is used to drive the left baffle to reset to the right, and the right elastic member connects the right baffle and the oil screen, and is used to drive the right baffle to reset to the left; a mounting plate is arranged in the middle of the oil screen, and the driving motor is mounted on the mounting plate; the left transmission part comprises a first abutting arm mounted on the motor shaft of the driving motor, which is used to push the left baffle to slide to the left; the right transmission part comprises a second abutting arm mounted on the motor shaft of the driving motor, which is used to push the right baffle to slide to the right.

2. The range hood according to claim 1, wherein: the mechanical switch comprises a first mechanical switch and a second mechanical switch, the first mechanical switch is used to control the driving mechanism to drive the left baffle to slide left and right, and the second mechanical switch is used to control the driving mechanism to drive the right baffle to slide left and right.

3. The range hood according to claim 2, wherein: the first mechanical switch is used to control the driving motor to rotate in a first direction, so as to drive the left baffle to slide to the left; the second mechanical switch is used to control the driving motor to rotate in the opposite direction of the first direction, so as to drive the right baffle to slide to the right.

4. The range hood according to claim 3, characterized in that an end of the first abutting arm, which is used to abut against the left baffle, is provided with a first roller, and an end of the second abutting arm, which is used to abut against the right baffle, is provided with a second roller.

5. The range hood according to any one of claims 1-4, characterized in that the mechanical switch is provided with multiple gears, each of which is used to control the opening degree value of the left and / or right air inlets.

6. The range hood according to claim 5, characterized in that the mechanical switch is a rotary switch.

7. The range hood according to claim 5, wherein the mechanical switch comprises multiple keys, each of which corresponds to one of the gears.

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