Oil smoke auxiliary collecting device and wall cupboard

Abstract

The utility model discloses an auxiliary oil smoke collecting device and a wall cupboard, the auxiliary oil smoke collecting device is applied to the wall cupboard and comprises an air duct mechanism, a lifting mechanism and a limiting mechanism, the air duct mechanism comprises a first air duct and a second air duct which are communicated with each other, and the first air duct and the second air duct are connected in a sliding mode. The second air duct is provided with a collecting opening; the lifting mechanism is connected with the first air duct, and the output end of the lifting mechanism is connected with the second air duct so as to drive the second air duct to ascend and descend relative to the first air duct; the limiting mechanism is connected with the output end of the lifting mechanism or the second air channel, and the limiting mechanism is electrically connected with the lifting mechanism. The wall cupboard comprises a cupboard body and the oil fume auxiliary collecting device, the cupboard body is provided with a mounting cavity with a downward opening, and the oil fume auxiliary collecting device is mounted in the mounting cavity. The problem that residual oil smoke easily exists in an existing kitchen can be solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of kitchen equipment, and particularly relates to an oil fume auxiliary collection device and a wall cabinet. Background Art

[0002] In existing kitchens, an oil fume extractor is generally installed to extract oil fumes. However, since kitchen oil fumes will drift everywhere with the flow of air, it is difficult for the oil fume extractor to completely extract all the oil fumes, and there is likely to be residual oil fumes in the kitchen. Summary of the Utility Model

[0003] The purpose of the utility model is to provide an oil fume auxiliary collection device and a wall cabinet to solve the technical problem of residual oil fumes in the kitchen in the prior art.

[0004] The technical solution adopted to solve the above technical problem:

[0005] The utility model discloses an oil fume auxiliary collection device, which is applied to a wall cabinet and includes:

[0006] An air duct mechanism, the air duct mechanism includes a first air duct and a second air duct that are interconnected, the first air duct and the second air duct are slidably connected, and the second air duct is provided with a collection port;

[0007] A lifting mechanism, the lifting mechanism is connected to the first air duct, and the output end of the lifting mechanism is connected to the second air duct to drive the second air duct to lift relative to the first air duct;

[0008] A limiting mechanism, the limiting mechanism is connected to the output end of the lifting mechanism or the second air duct, and the limiting mechanism is electrically connected to the lifting mechanism.

[0009] The utility model has at least the following beneficial effects: The first air duct and the second air duct are slidably connected so that they can slide relative to each other. The second air duct is provided with a collection port, and oil fumes are sucked into the interconnected first air duct and second air duct through the collection port, thereby realizing the collection of residual oil fumes in the kitchen. The lifting mechanism is used to automatically realize the relative sliding of the first air duct and the second air duct, so that the second air duct with the collection port can automatically extend or retract from the wall cabinet. The limiting mechanism is used to limit the position of the second air duct to avoid the situation where the position of the second air duct sliding upward is too high, resulting in a gap being prominently exposed in the wall cabinet, or the position of the second air duct sliding downward is too low, resulting in the collection port being unable to completely collect oil fumes.

[0010] As a further improvement of the above technical solution, the second air duct includes a lift air duct and an oil collection box that are detachably connected, the lift air duct is connected to the output end of the lifting mechanism, and a plurality of collection ports are provided and symmetrically distributed on the opposite side walls of the oil collection box.

[0011] With the above settings, during the process of the fume being sucked into the air duct mechanism and discharged, the fume will condense to form liquid grease. The grease collecting box can collect the liquid grease dripping along the inner wall surface of the lifting air duct, preventing the liquid grease from dripping onto the kitchen countertop or the ground. The collecting ports are arranged on the opposite side walls of the grease collecting box to suck the fume from two directions, improving the fume removal efficiency.

[0012] As a further improvement of the above technical solution, a magnet is provided on the lifting air duct, and a magnetic member is provided on the grease collecting box, and the magnet and the magnetic member are magnetically connected.

[0013] With the above settings, the lifting air duct and the grease collecting box are detachably connected by magnetic attraction, and people can simply and quickly disassemble and assemble the grease collecting box from the lifting air duct, facilitating the cleaning of the grease collecting box.

[0014] As a further improvement of the above technical solution, the lifting mechanism includes a rotating motor, a lead screw, and a slider. The output end of the rotating motor is connected to the lead screw, the lead screw is threadedly penetrated through the slider, and the slider is connected to the second air duct.

[0015] With the above settings, the output end of the rotating motor drives the lead screw to rotate, so that the slider sleeved on the lead screw moves linearly, thereby driving the second air duct to move up and down relative to the first air duct.

[0016] As a further improvement of the above technical solution, the limiting mechanism includes a first limiting member and a second limiting member. The first limiting member and the second limiting member are connected to the first air duct, and the slider is located between the first limiting member and the second limiting member.

[0017] With the above settings, when the slider driven by the rotating motor contacts the first limiting member or the second limiting member, the rotating motor stops operating, thereby accurately limiting the highest position and the lowest position of the second air duct.

[0018] As a further improvement of the above technical solution, the first air duct is communicated with an air duct for connecting a negative pressure fan.

[0019] With the above settings, when the negative pressure fan is started, the air duct communicated with the first air duct and the second air duct form a negative pressure area, thereby forcing the residual fume floating in the kitchen to enter the fume auxiliary collecting device from the collecting port.

[0020] As a further improvement of the above technical solution, the fume auxiliary collecting device further includes a device frame, and a connection cavity is formed by surrounding the device frame. The first air duct is connected to the device frame and is arranged in the connection cavity.

[0021] With the above settings, the first air duct is supported by the device frame and fixed in the connection cavity. Since the lifting mechanism is connected to the first air duct, the lifting mechanism can also be installed in the connection cavity. Through the device body and the connection cavity formed around it, the oil fume auxiliary collection device can be more easily installed in the wall cabinet.

[0022] As a further improvement of the above technical solution, a sliding hole is opened at the lower end of the device frame, and the second air duct slides in the sliding hole.

[0023] With the above settings, the sliding hole provides a sliding space for the second air duct to extend out of the device frame. The second air duct saves the occupied upper and lower space through the sliding hole, avoiding the excessive up and down length of the oil fume auxiliary collection device.

[0024] The present utility model also discloses a wall cabinet, including a cabinet body and the oil fume auxiliary collection device as described in any one of the above. The cabinet body is provided with an installation cavity with an opening facing downwards, and the oil fume auxiliary collection device is installed in the installation cavity.

[0025] With the above settings, when the lifting mechanism is activated, the second air duct moves downward and extends out of the installation cavity. At this time, the collection port is exposed outside the installation cavity, and the residual oil fume in the kitchen is sucked into the collection port under negative pressure and discharged from the connected second air duct and the first air duct. When the collection of the residual oil fume in the kitchen is completed, the lifting mechanism can be activated again to retract the extended second air duct into the installation cavity, so as to hide the installation of the oil fume auxiliary collection device in the wall cabinet. The limiting mechanism can accurately ensure the extended position and retracted position of the second air duct.

[0026] As a further improvement of the above technical solution, when the second air duct is located in the installation cavity, the lower end surface of the second air duct and the lower end surface of the cabinet body are at the same horizontal plane.

[0027] With the above settings, when the second air duct retracts into the installation cavity, the entire lower end surface of the wall cabinet is flat and tidy, making the overall aesthetics of the wall cabinet higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The following will further describe the present utility model in conjunction with the drawings and embodiments;

[0029] Figure 1 is the overall structural schematic diagram of the oil fume auxiliary collection device provided by the embodiment of the present utility model;

[0030] Figure 2 is the exploded view of the second air duct provided by the embodiment of the present utility model;

[0031] Figure 3 is the overall structural schematic diagram of the wall cabinet in the oil fume auxiliary collection device in the suction state provided by the embodiment of the present utility model;

[0032] Figure 4 This is a schematic diagram of the overall structure of the wall cabinet provided by the embodiment of the present utility model when the oil fume auxiliary collection device is in a hidden state.

[0033] The markings in the attached drawings are as follows:

[0034] 100. Oil fume auxiliary collection device;

[0035] 210. First air duct; 220. Second air duct; 221. Collection port; 222. Lifting air duct; 223. Oil collection box; 224. Magnetic part;

[0036] 300. Lifting mechanism; 310. Rotating motor; 320. Lead screw; 330. Slide block;

[0037] 400. Limiting mechanism; 410. First limiting part; 420. Second limiting part;

[0038] 500. Air duct;

[0039] 600. Device frame; 610. Connection cavity; 620. Sliding hole;

[0040] 700. Wall cabinet; 710. Cabinet body; 720. Installation cavity. Detailed implementation manners

[0041] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the attached drawings. The role of the attached drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but it cannot be understood as a limitation on the protection scope of the present utility model.

[0042] In the description of the present utility model, it should be understood that for the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc., is based on the orientation or position relationship shown in the attached drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model.

[0043] In the description of the present utility model, if there are descriptions with words such as "several", its meaning is one or more, and the meaning of multiple is two or more. Understanding greater than, less than, exceeding, etc. does not include the present number, and understanding above, below, within, etc. includes the present number. If there are descriptions of first, second, third, etc., they are only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0044] It should be noted that in the attached drawings, the X direction points from the rear side to the front side of the oil fume auxiliary collection device; the Y direction points from the left side to the right side of the oil fume auxiliary collection device; and the Z direction points from the lower side to the upper side of the oil fume auxiliary collection device.

[0045] In the description of the present utility model, unless otherwise clearly defined, terms such as "set", "installed", "connected", etc. should be understood in a broad sense, and those skilled in the relevant technical field can reasonably determine the specific meanings of the above terms in the present utility model in combination with the specific content of the technical solution.

[0046] Refer to Figures 1 to 4 , and several embodiments of an oil fume auxiliary collection device and a wall cabinet of the present utility model are given below.

[0047] As Figures 1 to 4 shown, the oil fume auxiliary collection device 100 of the embodiment of the present utility model is applied to the wall cabinet 700. The oil fume auxiliary collection device 100 includes an air duct mechanism, a lifting mechanism 300, and a limiting mechanism 400.

[0048] It can be understood that the air duct mechanism is used to provide a channel for extracting oil fume. The air duct mechanism includes a first air duct 210 and a second air duct 220, which are connected to each other, and oil fume can flow between the first air duct 210 and the second air duct 220, as Figure 1 and Figure 2 shown. The first air duct 210 and the second air duct 220 are slidably connected so that the first air duct 210 and the second air duct 220 can slide relative to each other to adjust the position of the second air duct 220 relative to the first air duct 210. The second air duct 220 is provided with a collection port 221, and oil fume is extracted into the second air duct 220 from the collection port 221 and flows through the connected first air duct 210.

[0049] It can be understood that the lifting mechanism 300 is connected to the first air duct 210 to be relatively fixed to the first air duct 210 and obtain a supporting effect from the first air duct 210. The output end of the lifting mechanism 300 is connected to the second air duct 220. When the lifting mechanism 300 is started, the output end of the lifting mechanism 300 drives the second air duct 220 to slide relative to the first air duct 210, so that one end of the second air duct 220 can extend out of the wall cabinet 700, thereby exposing the position of the collection port 221 to facilitate the collection of oil fume from the collection port 221. At this time, the oil fume auxiliary collection device 100 is in the suction state, as Figure 1 shown; or it can be retracted into the wall cabinet 700 when not in use, thereby hiding the collection port 221 and making the oil fume auxiliary collection device 100 more tidy and beautiful in the kitchen. At this time, the oil fume auxiliary collection device 100 is in the hidden state, as Figure 2 shown.

[0050] It can be understood that the limiting mechanism 400 is used to limit the lifting position of the second air duct 220, preventing the second air duct 220 from lifting or lowering excessively, which may cause the position of the collection port 221 to be too low and inconvenient for extracting the upward floating cooking fumes, or the position of the collection port 221 to be too high during storage, resulting in a conspicuous gap in the oil fume auxiliary collection device 100 on the wall cabinet 700.

[0051] Since the output end of the lifting mechanism 300 is connected to the second air duct 220, the limiting mechanism 400 is connected to the output end of the lifting mechanism 300 or the second air duct 220 to limit the second air duct 220. The limiting mechanism 400 and the lifting mechanism 300 are electrically connected. When the output end of the lifting mechanism 300 drives the second air duct 220 to lift or lower, if the output end of the lifting mechanism 300 or the second air duct 220 touches the limiting mechanism 400, the limiting mechanism 400 causes the lifting mechanism 300 to close. At this time, the second air duct 220 stops lifting or lowering, and the second air duct 220 is in the suction position or the hidden position.

[0052] It can be understood that when the cooking fumes flow through the second air duct 220 to the first air duct 210 and are discharged from the kitchen, part of the cooking fumes cool and condense into liquid grease, and the liquid grease easily flows downward along the inner wall of the second air duct 220, thus overflowing from the collection port 221 of the oil fume auxiliary collection device 100 and causing the kitchen countertop or floor to be soiled.

[0053] In this embodiment, the second air duct 220 includes a lifting air duct 222 and an oil collection box 223. As Figure 1 shown, the lifting air duct 222 is connected to the output end of the lifting mechanism 300, and the lifting air duct 222 slides and communicates with the first air duct 210. The oil collection box 223 is located at the lower end of the lifting air duct 222, and the oil collection box 223 is used to collect the liquid grease formed by cooling.

[0054] It can be understood that the lifting air duct 222 and the oil collection box 223 are detachably connected, so that the oil collection box 223 can be separately disassembled to clean the liquid grease collected in the oil collection box 223 and wash the oil collection box 223.

[0055] In some embodiments, the collection port 221 is provided on the lifting air duct 222 to prevent the collected liquid grease from flowing out of the collection port 221. However, since the cooking fumes enter the second air duct 220 from the collection port 221, the collection port 221 is likely to have residual liquid grease. The collection port 221 located on the lifting air duct 222 is not easy to clean. Over time, the liquid grease is likely to block the collection port 221, resulting in the inability of the oil fume auxiliary collection device 100 to extract the cooking fumes.

[0056] In this embodiment, the collection port 221 is provided on the oil collection box 223. People can view the liquid level of the liquid grease in the oil collection box 223 through the collection port 221, which is convenient for cleaning the oil collection box 223 in time to avoid the overflow of the liquid grease. Since the collection port 221 is provided on the oil collection box 223, when the oil collection box 223 is removed and cleaned, the collection port 221 can be cleaned to keep the collection port 221 clean and unobstructed.

[0057] It can be understood that the lifting mechanism 300 driving the second air duct 220 to lift actually means that the oil collection box 223 extends out of or retracts into the wall cabinet 700. When the oil fume auxiliary collection device 100 is in the suction state, the oil collection box 223 extends out of the wall cabinet 700, and the collection port 221 on the oil collection box 223 is exposed for oil fume suction. When the oil fume auxiliary collection device 100 is in the hidden state, the oil collection box 223 retracts into the wall cabinet 700, and the collection port 221 is hidden in the wall cabinet 700, and the surface of the wall cabinet 700 is flat and tidy.

[0058] It can be understood that a plurality of collection ports 221 are provided to increase the oil fume suction effect. The plurality of collection ports 221 are symmetrically distributed on two opposite side walls of the oil collection box 223 respectively, so as to uniformly suck oil fume from two opposite directions at the same time, improve the oil fume suction efficiency, and reduce the possibility of residual oil fume in the kitchen.

[0059] In some embodiments, the plurality of collection ports 221 are distributed on the front side wall and the rear side wall of the oil collection box 223 that are opposite to each other.

[0060] In this embodiment, the plurality of collection ports 221 are distributed on two relatively large opposite side walls of the oil collection box 223, that is, the left side wall and the right side wall of the oil collection box 223, as Figure 1 shown, so as to increase the number or area of the collection ports 221 provided on the oil collection box 223 and further improve the oil fume suction efficiency.

[0061] It can be understood that two collection ports 221 are provided and distributed on the left side wall and the right side wall of the oil collection box 223. Each collection port 221 is an oval hole extending along the long side of the oil collection box 223, so as to improve the oil fume suction efficiency by enlarging the area of the collection port 221.

[0062] In this embodiment, taking the left side wall of the oil collection box 223 as an example, the plurality of collection ports 221 are distributed at intervals along the long side of the oil collection box 223. Each collection port 221 can be a conventional shape such as a circular hole or a square hole, or can be a shape formed by circumferentially arranging a plurality of triangular holes or a plurality of circular holes, so as to improve the aesthetics of the exposed oil collection box 223.

[0063] It can be understood that the detachable connection between the lifting air duct 222 and the oil collection box 223 can be realized by connection means such as bolts and magic tapes.

[0064] In this embodiment, the lifting air duct 222 and the oil collecting box 223 are detachably connected by magnetic attraction. Specifically, magnets are fixed to the lifting air duct 222 by countersunk screws, and a plurality of connection holes are provided at the front end and the rear end of the oil collecting box 223, and magnetic members 224 are fixed in the connection holes, such as Figure 2 shown, the magnets and the magnetic members 224 are opposite to each other vertically and magnetically connected, so as to realize the detachable connection between the lifting air duct 222 and the oil collecting box 223.

[0065] With such a setting, when the oil collecting box 223 extends out of the wall cabinet 700, people can directly pull out the oil collecting box 223 downward, making the disassembly of the oil collecting box 223 more convenient.

[0066] It can be understood that the inner edge of the lifting air duct 222 and the outer edge of the oil collecting box 223 are covered and connected, so that a plurality of magnets and a plurality of magnetic members 224 can be vertically aligned respectively, which is convenient for accurate magnetic attraction.

[0067] It can be understood that the lifting mechanism 300 includes a rotating motor 310, a lead screw 320 and a slider 330, as Figure 1 shown. Specifically, the connection between the lifting mechanism 300 and the first air duct 210 is actually the connection between the rotating motor 310 and the outer wall surface of the first air duct 210. The output end of the rotating motor 310 is connected to the lead screw 320 to drive the lead screw 320 to rotate. The lead screw 320 extends in the vertical direction and passes through the slider 330. The slider 330 is provided with an internal thread, and the internal thread of the slider 330 is threadedly connected to the outer wall surface of the lead screw 320. When the rotating motor 310 is started, the rotating lead screw 320 forces the slider 330 to move in the vertical direction. The slider 330 is connected to the second air duct 220, so as to drive the lifting air duct 222 and the oil collecting box 223 to move up and down.

[0068] It can be understood that the first air duct 210 and the second air duct 220 are slidably connected to ensure that the slider 330 connected to the lifting air duct 222 can only move up and down, and to prevent the slider 330 from being driven to rotate by the rotating lead screw 320.

[0069] In some embodiments, the lower end of the first air duct 210 passes through the lifting air duct 222, and the outer wall surface of the first air duct 210 is slidably connected to the inner wall surface of the lifting air duct 222.

[0070] In this embodiment, the upper end of the lifting air duct 222 passes through the first air duct 210, and the outer wall surface of the lifting air duct 222 is slidably connected to the inner wall surface of the first air duct 210.

[0071] Furthermore, a sealing member is provided between the inner wall surface of the first air duct 210 and the outer wall surface of the lifting air duct 222. The sealing member is used to prevent oil fume from leaking through the gap between the two, and the sealing member can be fixedly connected to the first air duct 210 or the lifting air duct 222.

[0072] It can be understood that the lifting mechanism 300 is further provided with a guide shaft, which extends in the up and down direction and is parallel to the lead screw 320. The guide shaft passes through the slider 330 to guide the up and down movement of the slider 330.

[0073] It can be understood that the limiting mechanism 400 includes a first limiting member 410 and a second limiting member 420, as Figure 1 shown. Specifically, the first limiting member 410 and the second limiting member 420 are arranged at intervals in the up and down direction. The first limiting member 410 is located above the second limiting member 420, and both the first limiting member 410 and the second limiting member 420 are connected to the first air duct 210.

[0074] In some embodiments, the second air duct 220 is located between the first limiting member 410 and the second limiting member 420. When the upper end of the second air duct 220 is connected to the first limiting member 410, the oil fume auxiliary collection device 100 is in a hidden state; when the lower end of the second air duct 220 is connected to the second limiting member 420, the oil fume auxiliary suction device is in a suction state.

[0075] In this embodiment, the output end of the lifting mechanism 300 is the slider 330, and the slider 330 is located between the first limiting member 410 and the second limiting member 420. When the rotating motor 310 drives the slider 330 to rise until the upper end of the slider 330 is connected to the first limiting member 410, the lifting mechanism 300 is closed. At this time, the oil fume auxiliary collection device 100 is in a hidden state; when the rotating motor 310 drives the slider 330 to descend until the lower end of the slider 330 is connected to the second limiting member 420, the lifting mechanism 300 is closed. At this time, the oil fume auxiliary collection device 100 is in a suction state.

[0076] It can be understood that the first air duct 210 is connected to an air duct 500, as Figure 1 shown. The air duct 500 is used to connect to a negative pressure fan. When the negative pressure fan is started, the negative pressure discharges the air in the oil fume auxiliary collection device 100, making a negative pressure area formed inside the oil fume auxiliary collection device 100, so as to make the collection port 221 suck in the kitchen oil fume and avoid oil fume residue.

[0077] It can be understood that the oil fume auxiliary collection device 100 further includes a device frame 600. The device frame 600 surrounds and forms a connection cavity 610. The first air duct 210 is connected to the device frame 600, as Figure 1As shown. The first air duct 210 is fixed by the device frame 600, thereby indirectly fixing the positions of the second air duct 220, the lifting mechanism 300, etc. The first air duct 210 is arranged in the connection cavity 610 so that structures such as the second air duct 220 and the lifting mechanism 300 connected to the first air duct 210 are all installed in the connection cavity 610, facilitating the overall installation of the oil fume auxiliary collection device 100 in the wall cabinet 700 and saving installation space and installation steps.

[0078] It can be understood that a sliding hole 620 is opened at the lower end of the device frame 600, as Figure 3 and Figure 4 shown, providing a sliding space for the second air duct 220. The lower ends of the oil collecting box 223 and the lifting air duct 222 can slide out of the device frame 600 through the sliding hole 620, and the lower end of the lifting air duct 222 can also be partially hidden in the sliding hole 620, saving the up and down space occupied by the second air duct 220.

[0079] It can be understood that the wall cabinet 700 in the embodiment of the present utility model includes a cabinet body 710 and an oil fume auxiliary collection device 100, and the oil fume auxiliary collection device 100 is installed in the cabinet body 710, as Figure 3 and Figure 4 shown. Specifically, the cabinet body 710 is provided with an installation cavity 720 with an opening facing downwards, and the oil fume auxiliary collection device 100 is hidden in the installation cavity 720, as Figure 3 and Figure 4 shown. When the oil fume auxiliary collection device 100 changes from the hidden state to the suction state, the second air duct 220 descends through the lifting mechanism 300 so that the oil collecting box 223 extends downward out of the installation cavity 720. At this time, the collection port 221 is exposed, as Figure 3 shown.

[0080] It can be understood that the cabinet body 710 can be provided with one or more installation cavities 720, and the number of oil fume auxiliary collection devices 100 corresponds to the number of installation cavities 720.

[0081] In this embodiment, the cabinet body 710 is provided with a plurality of installation cavities 720 along the long side, that is, the plurality of installation cavities 720 are arranged in the left - right direction, and the plurality of oil fume auxiliary collection devices 100 are arranged at intervals in the left - right direction, improving the removal efficiency of kitchen residual oil fume. The range hood is arranged between two adjacent oil fume auxiliary collection devices 100, as Figure 3 shown, so that the two oil fume auxiliary collection devices 100 can timely suck the residual oil fume that the range hood fails to suck away.

[0082] It can be understood that the lower end surface of the oil fume auxiliary collection device 100 is the lower end surface of the second air duct 220. When the oil fume auxiliary collection device 100 is in the hidden state, the lower end surfaces of the second air duct 220 and the cabinet body 710 are on the same horizontal plane, that is, the lower end surface of the oil collection box 223 and the lower end surface of the cabinet body 710 are on the same horizontal plane, so that when the oil fume auxiliary collection device 100 installed in the cabinet body 710 is in the unused state, the lower end surface of the cabinet body 710 is flat and tidy, as Figure 4 shown.

[0083] The preferred embodiments of the present invention have been specifically described above, but the present invention is not limited to the described embodiments. Those skilled in the art can also make various equivalent variations or substitutions without departing from the spirit of the present invention, and these equivalent variations or substitutions are all included within the scope defined by the claims of this application.

Claims

1. An oil fume auxiliary collection device, which is applied to an overhead cabinet, and is characterized in that It includes: An air duct mechanism, the air duct mechanism includes a first air duct and a second air duct that are interconnected, the first air duct and the second air duct are slidably connected, and the second air duct is provided with a collection port; A lifting mechanism, the lifting mechanism is connected to the first air duct, and the output end of the lifting mechanism is connected to the second air duct to drive the second air duct to lift relative to the first air duct; A limiting mechanism, the limiting mechanism is connected to the output end of the lifting mechanism or the second air duct, and the limiting mechanism is electrically connected to the lifting mechanism.

2. The oil fume auxiliary collection device according to claim 1, wherein The second air duct includes a lift air duct and an oil collection box that are detachably connected, the lift air duct is connected to the output end of the lifting mechanism, and a plurality of collection ports are provided and symmetrically distributed on opposite side walls of the oil collection box.

3. The oil fume auxiliary collection device according to claim 2, wherein The lift air duct is provided with a magnet, and the oil collection box is provided with a magnetic member, and the magnet and the magnetic member are magnetically connected.

4. The oil fume auxiliary collection device according to claim 1, wherein, The lifting mechanism includes a rotary motor, a lead screw, and a slider. The output end of the rotary motor is connected to the lead screw, the lead screw is threadedly penetrated through the slider, and the slider is connected to the second air duct.

5. The oil fume auxiliary collection device according to claim 4, wherein The limiting mechanism includes a first limiting member and a second limiting member. The first limiting member and the second limiting member are connected to the first air duct, and the slider is located between the first limiting member and the second limiting member.

6. The oil fume auxiliary collection device according to claim 1, characterized in that, The first air duct is connected to an air duct for connecting a negative pressure fan.

7. The oil fume auxiliary collection device according to claim 1, wherein It further includes a device frame, the device frame surrounds and forms a connection cavity, and the first air duct is connected to the device frame and is arranged in the connection cavity.

8. The oil fume auxiliary collection device according to claim 7, characterized in that, A sliding hole is formed at the lower end of the device frame, and the second air duct slides in the sliding hole.

9. A wall cabinet, characterized in that, It includes a cabinet body and the oil fume auxiliary collection device according to any one of claims 1 to 8. The cabinet body is provided with an installation cavity with an opening facing downwards, and the oil fume auxiliary collection device is installed in the installation cavity.

10. The wall cabinet according to claim 9, characterized in that, When the second air duct is located in the installation cavity, the lower end surface of the second air duct and the lower end surface of the cabinet body are on the same horizontal plane.

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