A lifting type range hood capable of purifying air and a control method thereof

Abstract

The present invention provides a lifting type range hood capable of purifying air and a control method thereof, and belongs to the technical field of range hoods. It solves the problem that the existing range hoods are inconvenient to use and have poor practicality. The lifting type range hood capable of purifying air of the present invention comprises a cabinet, an air-driving mechanism, a main suction mechanism, a lifting mechanism, a switching mechanism, and a main smoke removal mechanism. During the process of the lifting type range hood, the control system controls the switching mechanism, and when the switching mechanism connects the air-driving mechanism with the outside air, the lifting type range hood purifies the oil smoke generated on the stove and discharges it to the outside; and when the switching mechanism connects the air-driving mechanism with the indoor air, the lifting type range hood purifies the indoor air and returns it to the indoor air. In this way, the integrated design of the range hood and the air purifier is realized, and the cost of people purchasing kitchen equipment is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of range hoods and relates to a lifting type range hood capable of purifying air and a control method thereof. Background Art

[0002] A range hood is a device for exhausting kitchen fumes to the outdoors. In existing range hoods, for example, a tornado-type range hood with publication number CN 103673009 A includes a fan, a body, a flue, and a smoke hole. A flue is fixed at the center of the top of the body, and a smoke hole is provided at the center of the bottom of the body. It is characterized in that fans are provided on the body on both sides of the flue, a bellows is provided at the smoke hole, an inner horn body fixed on the flue is provided on the outer sleeve of the bellows, and an outer horn body is provided between the inner horn body and the flue. Although the range hood can realize the function of extracting fumes, it does not have the function of purifying fumes. Secondly, most purifiers used for purifying kitchen air are often provided separately from the range hood, which increases the cost of people purchasing kitchen equipment. Summary of the invention

[0003] The purpose of the present invention is to solve the above problems in the prior art and to provide a lifting type range hood which is simple in structure, convenient to use and highly practical and can purify air and a control method thereof.

[0004] The purpose of the present invention can be achieved through the following technical solutions: A lifting type range hood capable of purifying air, comprising:

[0005] A cabinet body, wherein a wind-discharging mechanism is provided inside the cabinet body to suck external oil smoke into the cabinet body;

[0006] The main suction mechanism is movably arranged on the cabinet; a lifting mechanism is arranged in the cabinet for driving the main suction mechanism to move up and down; the wind-driving mechanism is connected to the main suction mechanism; a switching mechanism for discharging gas outdoors or indoors is arranged in the cabinet, and the switching mechanism is connected to the driving mechanism;

[0007] The main smoke removal mechanism is arranged in the main suction mechanism.

[0008] In the above-mentioned lift-type range hood that can purify air, the switching mechanism includes a main air duct that leads the gas in the wind drive mechanism to the outside, an auxiliary air duct that leads the gas in the wind drive mechanism to the room, and a switching component for switching the gas flow in the main air duct or the auxiliary air duct, and the auxiliary air duct is connected to the main air duct.

[0009] In the above-mentioned lifting type range hood that can purify air, the switching component includes an auxiliary motor with a main rotating shaft and an auxiliary rotating shaft. The main rotating shaft is movably arranged in the main air duct, and the main rotating shaft is provided with a main bevel gear and a main baffle. The diameter of the main baffle is the same as the inner diameter of the main air duct; the auxiliary rotating shaft is movably arranged in the auxiliary air duct, and the auxiliary rotating shaft is provided with an auxiliary bevel gear meshing with the main bevel gear and an auxiliary baffle. The diameter of the auxiliary baffle is the same as the inner diameter of the auxiliary air duct.

[0010] In the above-mentioned lift-type range hood capable of purifying air, a main limiter for limiting the movement of the main shaft is provided at one end of the main shaft away from the main bevel gear, and an auxiliary limiter for limiting the movement of the auxiliary shaft is provided at one end of the auxiliary shaft away from the auxiliary bevel gear.

[0011] In the above-mentioned lifting type range hood capable of purifying air, the main smoke removal mechanism comprises a plurality of positive plates arranged in parallel, each of the positive plates is clamped in the main suction mechanism, and there is a gap between two adjacent positive plates, and a plurality of negative lines are arranged in parallel between two adjacent positive plates.

[0012] In the above-mentioned lifting type range hood capable of purifying air, the wind driving mechanism comprises a main fan having a main air port for connecting to a main suction mechanism and an air outlet, and an air guide duct is provided between the air outlet and the main air duct.

[0013] In the above-mentioned lift-type range hood that can purify air, the cabinet body includes an outer shell for installing a switching mechanism and a lifting shell for movably installing the lifting mechanism, the outer shell is detachably connected to the lifting shell, the lifting shell is provided with a main air inlet corresponding to the main air outlet, the outer shell is provided with a main air outlet for connecting to the air outlet and a plurality of auxiliary air outlets for connecting to auxiliary air ducts; the auxiliary air duct is provided with an air connecting shell for connecting to the auxiliary air outlet.

[0014] In the above-mentioned lift-type range hood capable of purifying air, the main suction mechanism comprises a smoking shell having a smoking port, wherein the smoking shell is obliquely provided with a filter plate at the smoking port; the main air port, the main air inlet, the lift shell and the smoking shell are connected.

[0015] In the above-mentioned lifting type range hood that can purify air, the lifting mechanism includes a pair of lifting components for driving the smoke intake shell to move up and down and a driving member for driving the lifting components to move; the lifting components are positioned and installed on the lifting shell; and the smoke intake shell is provided with reinforcing ribs corresponding to the lifting components.

[0016] A lifting type range hood capable of purifying air and a control method thereof, characterized by comprising:

[0017] S1, control the auxiliary motor to make the main shaft and the auxiliary shaft rotate synchronously to a predetermined angle, that is, the main baffle opens the main air duct, and the auxiliary baffle closes the auxiliary air duct. At this time, the gas in the main fan is discharged from the main air duct to the outside;

[0018] S2. Control the auxiliary motor to make the main shaft and the auxiliary shaft rotate synchronously to a predetermined angle, that is, the main baffle closes the main air duct, and the auxiliary baffle opens the auxiliary air duct. At this time, the gas in the main fan is discharged from the auxiliary air duct to the room.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. In the process of the lift-type range hood, the control system controls the switching mechanism, and when the switching mechanism connects the wind-driving mechanism with the outside air, the lift-type range hood purifies the oil smoke generated on the stove and discharges it to the outside; and when the switching mechanism connects the wind-driving mechanism with the indoor air, the lift-type range hood purifies the indoor air and returns it to the indoor air. In this way, the integrated design of the range hood and the air purifier is realized, reducing the cost of people purchasing kitchen equipment.

[0021] 2. The main suction mechanism is movably installed on the cabinet, and the lifting mechanism controls the main suction mechanism to move up and down relative to the cabinet. When the double-suction range hood is working, the lifting mechanism drives the main suction mechanism to move downward and makes the main suction mechanism located between the cabinet and the stove, so that the main suction mechanism can fully absorb the oil smoke and avoid a large amount of oil smoke adhering to the wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a preferred embodiment of the present invention.

[0023] Figure 2 yes Figure 1 Schematic diagram of the structure after removing the shell and switching mechanism.

[0024] Figure 3 yes Figure 1 Schematic diagram of the structure from another perspective.

[0025] Figure 4 It is a combined diagram of the main suction mechanism and the lifting mechanism.

[0026] Figure 5 It is a structural diagram of the lifting mechanism.

[0027] Figure 6 It is a combined diagram of the wind driving mechanism and the switching mechanism.

[0028] Figure 7 It is a structural diagram of the switching component.

[0029] Figure 8 It is a structural diagram of the main smoke removal mechanism. DETAILED DESCRIPTION

[0030] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0031] like Figure 1 — Figure 8 As shown, a lift-type range hood capable of purifying air of the present invention comprises a cabinet 100, a wind driving mechanism 200, a main suction mechanism 300, a lifting mechanism 400, a switching mechanism 500, and a main smoke removal mechanism 600.

[0032] The cabinet 100 is provided with a wind-driving mechanism 200 for sucking the external oil smoke into the cabinet 100, the main suction mechanism 300 is movably arranged on the cabinet 100, and the cabinet 100 is provided with a lifting mechanism 400 for driving the main suction mechanism 300 to move up and down. The wind-driving mechanism 200 is connected to the main suction mechanism 300, and the cabinet 100 is provided with a switching mechanism 500 for discharging the gas outdoors or discharging the gas indoors, and the switching mechanism 500 is connected to the driving mechanism, and the main smoke removal mechanism 600 is arranged in the main suction mechanism 300. During installation, people need to install the cabinet 100 directly above the kitchen stove and install the cabinet 100 on the wall of the kitchen. Before using the stove, people need to control the switching mechanism 500 through the control system of the lifting range hood to connect the gas in the wind driving mechanism 200 with the outdoor gas, and then control the lifting mechanism 400 to push the main suction mechanism 300 out of the cabinet 100, that is, the main suction mechanism 300 moves toward the stove, that is, the lifting mechanism 400 drives the main suction mechanism 300 to move downward, and When the main suction mechanism 300 moves to the predetermined position, the wind-driving mechanism 200 is turned on. Since the wind-driving mechanism 200 is connected to the main suction mechanism 300, when the oil smoke generated on the stove is generated, the main suction mechanism 300 can absorb the oil smoke, purify the oil smoke through the main smoke removal mechanism 600, and discharge the oil smoke to the outside through the wind-driving mechanism 200 through the switching mechanism 500. When people stop cooking, they can control the switching mechanism 500 again through the control system, so that the gas in the wind-driving mechanism 200 is connected with the indoor gas. When the wind driving mechanism 200 is running, the indoor gas will pass through the main suction mechanism 300, the lifting mechanism 400 and the wind driving mechanism 200 in sequence until the switching mechanism 500 discharges the gas into the room, so that the main smoke removal mechanism 600 can purify the absorbed indoor air; when people do not use the lift-type range hood for a long time, the main suction mechanism 300 can be put into the cabinet 100 through the lifting mechanism 400, so that not only the space occupied by the lift-type range hood is reduced, but also it is convenient for people to use.

[0033] After the oil smoke is sucked into the main suction mechanism 300, the oil smoke directly enters the main smoke removal mechanism 600, so that the oil smoke entering the main suction mechanism 300 is directly purified by the main smoke removal mechanism 600, avoiding the oil smoke from adhering to the lifting mechanism 400 or the driving mechanism. Therefore, when cleaning, people only need to clean the main smoke removal mechanism 600 regularly, and they can use the double-suction range hood again, which is convenient for people to clean.

[0034] like Figure 1 and Figure 6 — Figure 7 As shown, the switching mechanism 500 includes a main air duct 510 for leading the gas in the air-driving mechanism 200 to the outside, an auxiliary air duct 520 for leading the gas in the air-driving mechanism 200 to the inside, and a switching component 530 for switching the gas flow of the main air duct 510 or the auxiliary air duct 520. The auxiliary air duct 520 is connected to the main air duct 510. When people use the stove to cook, they must first open the main air duct 510 through the switching component 530. At the same time, the switching component 530 closes the auxiliary air duct 520, so that the gas passes through the main suction mechanism 300, the main smoke removal mechanism 600, the lifting mechanism 600, and the auxiliary air duct 520 in sequence. The gas after the main suction mechanism 300, the main smoke removal mechanism 600, the lifting mechanism 400 and the wind driving mechanism 200 is discharged to the outside through the main air duct 510, thus realizing the function of the lifting type range hood to absorb oil smoke; when people do not use the stove to cook for a short time, the main air duct 510 can be opened and closed by the switching component 530, and the auxiliary air duct 520 can be opened by the switching component 530, so that the gas after passing through the main suction mechanism 300, the main smoke removal mechanism 600, the lifting mechanism 400 and the wind driving mechanism 200 in sequence is returned to the room through the auxiliary air duct 520, thus, the indoor air can be purified, so that people can breathe gas that is beneficial to the human body for a long time.

[0035] The inner diameter of the main air duct 510 is larger than the inner diameter of the auxiliary air duct 520. When the control system controls the switching component 530 to work, that is, the switching component 530 closes the main air duct 510 and opens the auxiliary air duct 520, the control system simultaneously controls the rotation speed of the wind driving mechanism 200 so that the air flow speed just meets the inner diameter of the auxiliary air duct 520. In this way, the power consumption of the lifting type range hood in purifying the air can be reduced. Here, the energy-saving and emission reduction function of the present invention is reflected; therefore, people can turn on the lifting type range hood 24 hours a day to purify the indoor air.

[0036] The switching assembly 530 includes an auxiliary motor 531 having a main rotating shaft 532 and an auxiliary rotating shaft 533. The main rotating shaft 532 is movably arranged in the main air duct 510. A main bevel gear 532a and a main baffle 532b are arranged on the main rotating shaft 532. The diameter of the main baffle 532b is the same as the inner diameter of the main air duct 510. The main baffle 532b is fixedly connected or threadedly connected to the main rotating shaft 532 and is located in the main air duct 510. The auxiliary rotating shaft 533 is movably arranged in the auxiliary air duct 520. The auxiliary rotating shaft 533 is provided with a main bevel gear 532a and a main baffle 532b. The diameter of the main baffle 532b is the same as the inner diameter of the main air duct 510. The main baffle 532b is fixedly connected or threadedly connected to the main rotating shaft 532 and is located in the main air duct 510. The main bevel gear 532a is meshed with the auxiliary bevel gear 533a and the auxiliary baffle 533b. The diameter of the auxiliary baffle 533b is the same as the inner diameter of the auxiliary air duct 520. The auxiliary baffle 533b is fixedly connected or threadedly connected to the auxiliary shaft 533 and is located in the auxiliary air duct 520. When people use the stove to cook, they need to start the auxiliary motor 531 first, so that the auxiliary motor 531 drives the main shaft 532 to rotate. Since the main baffle 532b is connected to the main shaft 532, the main baffle 532b also rotates accordingly. The main baffle plate 532b opens the main air duct 510. Since the auxiliary bevel gear 533a is meshed with the main bevel gear 532a, the auxiliary shaft 533 also rotates synchronously with the main shaft 532. Since the auxiliary baffle plate 533b is connected to the auxiliary shaft 533, the auxiliary baffle plate 533b also rotates accordingly, so that the auxiliary baffle plate 533b closes the auxiliary air duct 520. In this way, the gas in the air-driving mechanism 200 can only pass through the main air duct 510, but cannot pass through the auxiliary air duct 520. That is, the air in the air-driving mechanism 200 can only pass through the main air duct 510, and cannot pass through the auxiliary air duct 520. The gas inside will be discharged to the outside, thereby realizing the function of extracting oil fume of the lift-type range hood; when people do not use the stove for a short period of time, repeat the above operation, so that the main baffle plate 532b closes the main air duct 510, and the auxiliary baffle plate 533b opens the auxiliary air duct 520, so that the gas from the wind driving mechanism 200 can only pass through the auxiliary air duct 520 but cannot pass through the main air duct 510, that is, the gas from the wind driving mechanism 200 will be discharged to the room, thereby realizing the function of the lift-type range hood to purify the indoor air.

[0037] A main limit member 532c for limiting the movement of the main shaft 532 is provided at one end of the main shaft 532 away from the main bevel gear 532a. The main limit member 532c can be a plane bearing. One end face of the plane bearing close to the main air duct 510 is against the main air duct 510, and the other end face of the plane bearing is connected to the main shaft 532. Therefore, when the main shaft 532 rotates relative to the main air duct 510, the main limit member 532c always limits the movement of the main shaft 532 relative to the main air duct 510, thereby ensuring the stability of the switching mechanism 500.

[0038] An auxiliary limiting member 533c for limiting the movement of the auxiliary rotating shaft 533 is provided at one end of the auxiliary rotating shaft 533 away from the auxiliary bevel gear 533a. The auxiliary limiting member 533c can be a plane bearing. One end face of the plane bearing close to the auxiliary air duct 520 presses against the auxiliary air duct 520, and the other end face of the plane bearing is connected to the auxiliary rotating shaft 533. Therefore, when the auxiliary rotating shaft 533 rotates relative to the auxiliary air duct 520, the auxiliary limiting member 533c always limits the movement of the auxiliary rotating shaft 533 relative to the auxiliary air duct 520, thereby ensuring the stability of the operation of the switching mechanism 500.

[0039] like Figure 4 and Figure 8 As shown, the main smoke removal mechanism 600 includes a plurality of positive plates 610 arranged in parallel, each of the positive plates 610 is clamped in the main suction mechanism 300, and there is a gap 620 between two adjacent positive plates 610, and a plurality of negative lines 630 are arranged in parallel between two adjacent positive plates 610, and all the positive plates 610 are provided with a hydrophilic or hydrophobic coating. When working, people connect all the positive plates 610 to the positive pole of the power supply, and connect all the negative lines 630 to the negative pole of the power supply, that is, the smoke removal mechanism generates an electric field. When the main suction mechanism 300 sucks in the external oil smoke, the oil smoke will pass through the gap 620, and the electric field can decompose the oil smoke to produce residue. and ozone. Specifically, the negative electrode line 630 can release electrons to ionize the oil smoke, so that the oil smoke is decomposed into negative ions, which are attracted by the positive plate 610. The negative ions are charged from the positive plate 610 to generate slag and ozone, and the slag will be adsorbed on the positive plate 610. Specifically, the slag is in a solid state, so the slag is all adsorbed on the positive plate 610. The ozone generated by the main smoke removal mechanism 600 will pass through the main suction mechanism 300, the lifting mechanism 400, and the wind driving mechanism 200 in sequence, until it passes through the wind driving mechanism 200 and is discharged to the outside through the main air duct 510, thereby purifying the oil smoke or is discharged to the room through the auxiliary air duct 520, thereby purifying the indoor air.

[0040] like Figure 1 — Figure 5As shown, the wind driving mechanism 200 includes a main fan 210, the main fan 210 has a main air port 220 for connecting to the main suction mechanism 300 and an air outlet 230, and an air guide 511 is provided between the air outlet 230 and the main air duct 510. The cabinet 100 includes a housing 110 for installing the switching mechanism 500 and a lifting shell 120 for movably installing the lifting mechanism 400. The housing 110 is detachably connected to the lifting shell 120, and a lifting shell 120 is provided on the lifting shell 120. Corresponding to the main air inlet 121 of the main air outlet 220, the outer shell 110 is provided with a main air outlet 111 for connecting to the air outlet 230 and a plurality of auxiliary air outlets 112 for connecting to the auxiliary air duct 520, and the auxiliary air duct 520 is provided with a connecting air shell 521 for connecting to the auxiliary air outlet 112; the main suction mechanism 300 includes a smoking shell 310 with a smoking port 311, and the main air outlet 220, the main air inlet 121, the lifting shell 120 and the smoking shell 310 are connected.

[0041] During the process of extracting oil smoke from the lift-type range hood, when the main fan 210 is turned on, air convection is generated in the main fan 210. Since the smoke outlet 311, the smoke extracting shell 310, the lifting shell 120, the main air inlet 121, the main air outlet 220, the main fan 210, the air guide 511, and the main air duct 510 are connected, when the oil smoke on the stove floats to the main suction mechanism 300, the oil smoke will be sucked into the main suction mechanism 300, and pass through the smoke outlet 311, the smoke extracting shell 310, the lifting shell 120, the main air inlet 121, the main air outlet 220, and the main fan 210 in turn, and then the air convection generated by the main fan 210 will lead the purified oil smoke to the air outlet 230, the main air duct 510 and the main air outlet 111, so that the oil smoke is discharged to the outside, thereby realizing the extraction of oil smoke by the lift-type range hood. function; in the process of purifying the air of the lift-type range hood, when the main fan 210 is turned on, air convection is generated in the main fan 210. Because the smoke outlet 311, the smoke outlet shell 310, the lifting shell 120, the main air inlet 121, the main air outlet 220, the main fan 210, the air guide 511, and the auxiliary air duct 520 are connected, therefore, when the main suction mechanism 300 draws the air in the room and passes through the smoke outlet 311, the smoke outlet shell 310, the lifting shell 120, the main air inlet 121, the main air outlet 220, and the main fan 210 in turn, the air convection generated by the main fan 210 leads the purified air to the air outlet 230, the auxiliary air duct 520, the connecting air shell and the auxiliary air outlet 112, thereby returning the purified air to the room, thereby realizing the function of purifying the air of the lift-type range hood.

[0042] The inhalation shell 310 is provided with a filter plate 312 obliquely at the inhalation port 311. The filter plate 312 prevents debris from entering the inhalation shell 310, the lifting shell 120 and the main fan 210 through the inhalation port 311, thereby ensuring the stability of the lifting mechanism 400 and the main fan 210.

[0043] like Figure 4 — Figure 5 As shown, the lifting mechanism 400 includes a pair of lifting components 410 for driving the smoking shell 310 to move up and down and a driving member 420 for driving the lifting components 410 to move. The lifting components 410 are positioned and installed on the lifting shell 120.

[0044] Specifically, each lifting assembly 410 includes a screw rod 411 for connecting the smoking shell 310 and a pipe sleeve 412 movably installed in the lifting shell 120, the screw rod 411 is movably inserted in the corresponding pipe sleeve 412, and the driving member 420 includes a conveyor belt 421 for connecting the two pipe sleeves 412 and a main motor 422 for driving the pipe sleeve 412 to operate; the lifting shell 120 is provided with a positioning plate 122 for movably installing the pipe sleeve 412, and when the main suction mechanism 300 moves relative to the lifting shell 120, the main motor 422 is driven to rotate. 22 drives the conveyor belt 421 to move, and the two ends of the conveyor belt 421 are respectively engaged with the corresponding pipe sleeves, and the pipe sleeves are movably installed on the corresponding positioning plates 122, and the screw rod 411 is threadedly sleeved in the corresponding pipe sleeve 412, and each screw rod 411 is threadedly connected to the smoking shell 310. Therefore, when the conveyor belt 421 drives the pipe sleeve 412 to rotate, the screw rod 411 moves along the central axis of the pipe sleeve 412, that is, the screw rod 411 moves up and down relative to the pipe sleeve 412, thereby realizing the up and down movement of the smoking shell 310 relative to the lifting shell 120.

[0045] At least two guide plates 123 for guiding the moving smoking shell 310 are provided in the lifting shell 120, and a guide groove 123a is provided on each guide plate 123. The smoking shell 310 is provided with a guide block 314 that is movably clamped in the guide groove 123a. When the smoking shell 310 moves up and down relative to the lifting shell 120, the guide block 314 is threadedly connected to the lifting shell 120, and the guide plate 123 is threadedly connected to the lifting shell 120. Therefore, the smoking shell 310 will move along the trajectory of the guide groove 123a, thereby ensuring the stability of the up and down movement of the smoking shell 310.

[0046] The smoke inhaler shell 310 is provided with a reinforcing rib 313 corresponding to the lifting assembly 410, and the reinforcing rib 313 and the guide block 314 are respectively located on both sides of the smoke inhaler shell 310, and the reinforcing rib 313 is located on the smoke inhaler shell 310 close to the guide block 314. Therefore, during the up and down movement of the smoke inhaler shell 310 relative to the lifting shell 120, that is, during the movement of the guide block 314 along the trajectory of the guide groove 123a, the smoke inhaler shell 310 is not easy to be deformed or damaged, thereby ensuring the stability of the operation of the double-suction range hood.

[0047] The cabinet 100 is provided with a smoke shielding plate 130 for preventing oil smoke from adhering to the smoke exhaust shell 310. When the smoke exhaust shell 310 moves downward, the smoke shielding plate 130 blocks the smoke exhaust port 311, and when the smoke shielding plate 130 no longer blocks the smoke exhaust port 311, the main motor 422 stops moving, that is, the smoke exhaust shell 310 stops descending, so that the oil smoke on the stove can enter the smoke exhaust shell 310 through the smoke exhaust port 311; secondly, when the residual oil smoke on the stove does not enter the smoke exhaust shell 310 through the smoke exhaust port 311, the oil smoke will drift to the smoke shielding plate 130 and the outer shell 110, thus preventing the oil smoke from adhering to the smoke exhaust shell 310, thereby facilitating people to clean the range hood.

[0048] An illumination lamp 113 is provided on the bottom surface of the housing 110. When people use the double-suction range hood, by turning on the illumination lamp 113, people can obtain sufficient light source, which is convenient for people to cook.

[0049] The following is the control method of the present invention:

[0050] S1, push out the smoking shell 310 through the lifting mechanism 400;

[0051] S2. Operate the control system electrically connected to the lifting range hood so that the auxiliary motor 531 drives the main shaft 532 to rotate. Since the main baffle 532b is connected to the main shaft 532, the main baffle 532b also rotates accordingly, so that the main baffle 532b opens the main air duct 510. Since the auxiliary bevel gear 533a is meshed with the main bevel gear 532a, the auxiliary shaft 533 also rotates synchronously with the main shaft 532. Since the auxiliary baffle 533b is connected to the auxiliary shaft 533, the auxiliary baffle 533b also rotates accordingly. , so that the auxiliary baffle 533b closes the auxiliary air duct 520; at this time, the smoke inlet 311, the smoke inlet shell 310, the lifting shell 120, the main air inlet 121, the main air outlet 220, the main fan 210, the air outlet 230, the air duct, the main air duct 510 and the main air outlet 111 are connected, that is, the gas in the main fan 210 can only pass through the main air duct 510, and cannot pass through the auxiliary air duct 520, that is, the gas in the wind driving mechanism 200 will be discharged to the outside, thereby realizing the function of extracting oil fume of the lifting type range hood.

[0052] S3. When people do not use the stove for a short period of time, repeat the operation steps of S2, so that the main baffle 532b closes the main air duct 510, and the auxiliary baffle 533b opens the auxiliary air duct 520, so that the gas from the wind driving mechanism 200 can only pass through the auxiliary air duct 520, and cannot pass through the main air duct 510; at this time, the smoking port 311, the smoking shell 310, the lifting shell 120, the main air inlet 121, the main air outlet 220, the main fan 210, the air outlet 230, the induced draft duct, the auxiliary air duct 520, the connecting air shell 521 and the auxiliary air outlet 112 are connected, that is, the gas in the main fan 210 will be discharged into the room, so that the lifting type range hood can purify the indoor air.

[0053] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A lifting type range hood capable of purifying air, characterized in that: include: A cabinet body, wherein a wind-discharging mechanism is provided inside the cabinet body to suck external oil smoke into the cabinet body; The main suction mechanism is movably arranged on the cabinet; a lifting mechanism is arranged in the cabinet for driving the main suction mechanism to move up and down; the wind-driving mechanism is connected to the main suction mechanism; a switching mechanism for discharging gas outdoors or indoors is arranged in the cabinet, and the switching mechanism is connected to the driving mechanism; The main smoke removal mechanism is arranged in the main suction mechanism; The switching mechanism includes a main air duct for leading the gas in the air-expelling mechanism to the outside, an auxiliary air duct for leading the gas in the air-expelling mechanism to the room, and a switching component for switching the gas flow of the main air duct or the auxiliary air duct, and the auxiliary air duct is connected to the main air duct; The switching assembly comprises an auxiliary motor with a main rotating shaft and an auxiliary rotating shaft, wherein the main rotating shaft is movably arranged in the main air duct, and a main bevel gear and a main baffle are arranged on the main rotating shaft, and the diameter of the main baffle is the same as the inner diameter of the main air duct; the auxiliary rotating shaft is movably arranged in the auxiliary air duct, and an auxiliary bevel gear meshing with the main bevel gear and an auxiliary baffle are arranged on the auxiliary rotating shaft, and the diameter of the auxiliary baffle is the same as the inner diameter of the auxiliary air duct; The main smoke removal mechanism includes a plurality of positive plates arranged in parallel, each of the positive plates is clamped in the main suction mechanism, and there is a gap between two adjacent positive plates, and a plurality of negative lines are arranged in parallel between two adjacent positive plates.

2. The lift-type range hood capable of purifying air according to claim 1, characterized in that: A main stopper for limiting the movement of the main shaft is disposed at one end of the main shaft away from the main bevel gear, and an auxiliary stopper for limiting the movement of the auxiliary shaft is disposed at one end of the auxiliary shaft away from the auxiliary bevel gear.

3. The lift-type range hood capable of purifying air according to claim 1, characterized in that: The wind driving mechanism comprises a main fan, the main fan is provided with a main air port for connecting to a main suction mechanism and an air outlet, and an air guide duct is arranged between the air outlet and the main air duct.

4. The lift-type range hood capable of purifying air according to claim 3, characterized in that: The cabinet body includes an outer shell for installing a switching mechanism and a lifting shell for movably installing a lifting mechanism. The outer shell is detachably connected to the lifting shell. The lifting shell is provided with a main air inlet corresponding to the main air outlet. The outer shell is provided with a main air outlet for connecting to the air outlet and a plurality of auxiliary air outlets for connecting to auxiliary air ducts; the auxiliary air duct is provided with an air connecting shell for connecting to the auxiliary air outlets.

5. The lift-type range hood capable of purifying air according to claim 4, characterized in that: The main suction mechanism comprises a smoking shell with a smoking port, wherein the smoking shell is provided with a filter plate obliquely at the smoking port; the main air port, the main air inlet, the lifting shell and the smoking shell are connected.

6. The lift-type range hood capable of purifying air according to claim 5, characterized in that: The lifting mechanism comprises a pair of lifting components for driving the smoking shell to move up and down and a driving member for driving the lifting components to move; the lifting components are positioned and installed on the lifting shell; and the smoking shell is provided with reinforcing ribs corresponding to the lifting components.

7. A control method for a lifting type range hood capable of purifying air according to any one of claims 1 to 6, characterized in that: include: S1, control the auxiliary motor to make the main shaft and the auxiliary shaft rotate synchronously to a predetermined angle, that is, the main baffle opens the main air duct, and the auxiliary baffle closes the auxiliary air duct. At this time, the gas in the main fan is discharged from the main air duct to the outside; S2. Control the auxiliary motor to make the main shaft and the auxiliary shaft rotate synchronously to a predetermined angle, that is, the main baffle closes the main air duct, and the auxiliary baffle opens the auxiliary air duct. At this time, the gas in the main fan is discharged from the auxiliary air duct to the room.

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