Air blower device

By designing an inlet switching component in the blower unit to change the direction of oil fume intake, the problems of heat loss and fuel waste when suction is strong are solved, achieving high efficiency and safety in oil fume removal.

CN223909608UActive Publication Date: 2026-02-13SHENYANG CHUIDU CATERING EQUIPMENT CO LTD
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Patent Information

Application Number
CN202520457102.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-17
Publication Date
2026-02-13
Estimated Expiration
2035-03-17

AI Technical Summary

Technical Problem

Existing blower devices, when the suction is strong, cannot effectively reduce heat loss and ensure complete combustion of gas, resulting in fuel waste and harm to users.

Method used

By designing a structure that includes a collection hood, a collection box, an exhaust pipe, a fan, and an inlet switching component, the inlet switching component opens a new horizontal opening at the air intake end, changing the direction of the oil fume intake and avoiding the removal of heat from combustion and incompletely burned gas.

Benefits of technology

It effectively prevents heat and incompletely burned gas from being drawn away, reducing fuel waste and harm to users, and achieving effective removal of oil fumes under high suction power.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of kitchen auxiliary equipment, in particular to an air blower device, which comprises a fan, an exhaust pipe, an air inlet pipe and an air outlet pipe, the output end of the fan is communicated with the outside; an inlet switching assembly; the inlet switching assembly comprises two sets of first shielding plates and two sets of second shielding plates, and one sides of the first shielding plates are rotationally connected with one sides of the second shielding plates. By rotating the second baffle plate, the second baffle plate is flush with the first baffle plates, and the two groups of first baffle plates are pushed to the middle, so that the two groups of first baffle plates are butted, and lampblack cannot enter from the air inlet end; meanwhile, new openings are formed in the two sides of the air inlet end through the inlet switching assembly, the air inlet direction of the openings is horizontal, and oil smoke moves vertically and upwards, so that only the oil smoke can be extracted, heat generated during combustion cannot be extracted, and fuel gas which is not combusted thoroughly cannot be extracted.
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Description

TECHNICAL FIELD

[0001] The utility model relates to kitchen auxiliary equipment technical field, concretely is a kind of air blower device. BACKGROUND

[0002] Kitchen special air blower is a kind of equipment for kitchen ventilation and smoke exhaust, which is rotated at high speed by motor-driven impeller, generates powerful negative pressure, and the oil fume and peculiar smell in kitchen are sucked into the air duct of air blower, then are discharged outdoor through exhaust pipe, so as to achieve the effect of purifying air.

[0003] However, the existing air blower device, by the rotation of impeller, generates negative pressure in indoor and air blower, and uses negative pressure to suck oil fume into collecting cover, and adjusts the strength of suction along with the output of oil fume, when suction is strong, strong turbulence phenomenon is generated, at this time, part of heat generated during combustion and part of gas not combusted completely are brought out of stove, cannot reduce heat loss and ensure full combustion of gas when suction is strong, cause fuel waste and harm to user. SUMMARY

[0004] The utility model discloses a kind of air blower devices, to solve the problem that the existing air blower device cannot reduce heat loss and ensure full combustion of gas when suction is strong, cause fuel waste and harm to user.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] An air blower device, comprising:

[0007] Collecting cover, the surface of the collecting cover is provided with a through hole, one end of the through hole is an air inlet end, the other end is an air outlet end, a slide is formed on the inner wall of the through hole close to the air inlet end;

[0008] Collecting box, one end of the collecting box is fixedly connected with the air outlet end;

[0009] Exhaust pipe, one end of the exhaust pipe is connected with the inside of the collecting box;

[0010] Fan, the input end of the fan is connected with the other end of the exhaust pipe; the output end of the fan is connected with the outside;

[0011] Inlet switching assembly for changing the inlet position of oil fume; the inlet switching assembly comprises: two groups of first shielding plates and two groups of second shielding plates, one side of the first shielding plate is rotatably connected with one side of the second shielding plate; the first shielding plate is arranged in the slide, and the first shielding plate is slidably connected with the collecting cover through the slide.

[0012] Preferably, the entrance switching assembly further comprises:

[0013] Two groups of fixed frames, one end of each group of fixed frames being in communication with the interior of the collection box; the inner wall of the fixed frame being provided with a first sliding groove;

[0014] Two groups of moving frames, each group of moving frames being provided with a first sliding block at a position corresponding to the first sliding groove, so that the first sliding block is in sliding connection with the fixed frame through the first sliding groove; the inner wall of the moving frame being provided with a second sliding groove;

[0015] Two groups of extension frames, each group of extension frames being provided with a second sliding block at a position corresponding to the second sliding groove, so that the second sliding block is in sliding connection with the moving frame through the second sliding groove;

[0016] Two groups of magnets, one side of each group of magnets being fixedly connected with the moving frame, and the other side being closely attached to the second shielding plate.

[0017] Preferably, the outer diameter of the moving frame is equal to the inner diameter of the fixed frame, so that the moving frame can enter the fixed frame.

[0018] Preferably, the outer diameter of the extension frame is equal to the inner diameter of the moving frame, so that the extension frame can enter the moving frame.

[0019] Preferably, the entrance switching assembly further comprises: a driving assembly; the driving assembly is fixedly connected with the two groups of moving frames, and is used to drive the two groups of moving frames to move relatively.

[0020] Preferably, the driving assembly comprises:

[0021] Two groups of moving blocks, the bottom end of the moving block being provided with a third sliding block, the third sliding block being in sliding connection with the collection cover through a third sliding groove formed on the collection cover;

[0022] Two groups of connecting pieces, one end of the connecting piece being fixedly connected with the moving frame, and the other end being fixedly connected with the moving block;

[0023] A double-headed threaded rod penetrating through the two groups of moving blocks and being in threaded connection with the moving blocks;

[0024] A hand wheel, the axis of the hand wheel being fixedly connected with one end of the double-headed threaded rod.

[0025] Preferably, it further comprises: a filter plate; the filter plate is arranged in the interior of the collection box and is fixedly connected with the collection box, and is used to filter oil fume.

[0026] Preferably, it further comprises: a cleaning assembly; the cleaning assembly is attached to the filter plate, and is used to clean oil.

[0027] Preferably, the cleaning assembly comprises:

[0028] Two groups of cleaning plates are arranged on the side of the filter plate close to the collecting cover and are attached to the filter plate;

[0029] Two groups of moving plates, one end of each group of moving plates being fixedly connected to the cleaning plate;

[0030] Two groups of racks, each group of rack being fixedly connected to the moving plate;

[0031] Two groups of spur gears, the edges of each group of spur gear being meshingly connected to the rack;

[0032] A motor, the output end of the motor being fixedly connected to the shaft center of the spur gear;

[0033] Two groups of bevel gear sets, each group of bevel gear set being composed of a first bevel gear and a second bevel gear, the edges of the first bevel gear being meshingly connected to the edges of the second bevel gear; the shaft center of the first bevel gear being fixedly connected to the spur gear away from the shaft center of the motor; the shaft centers of the two groups of second bevel gears being fixedly connected.

[0034] Preferably, further comprising: an oil collecting assembly; the oil collecting assembly being fixedly connected to the collecting cover and being used for collecting oil; the oil collecting assembly further comprising:

[0035] An oil collecting groove being fixedly connected to the collecting cover;

[0036] A blocking piece penetrating through the collecting cover and extending to the inside of the oil collecting groove.

[0037] The beneficial effects of the utility model lie in: by rotating the second shielding plate, the second shielding plate and the first shielding plate are leveled, two groups of first shielding plates are pushed to the middle, the two groups of first shielding plates are butted, and the two groups of first shielding plates and the two groups of second shielding plates jointly shield the air inlet end, so that the oil fume cannot enter from the air inlet end; meanwhile, by using the inlet switching assembly, new openings are opened on the two sides of the air inlet end, since the air inlet direction of the openings is horizontal and the oil fume moves vertically upward, only the oil fume is drawn away, the heat generated during combustion is not drawn away, and the gas which is not combusted completely is not drawn away either. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 It is a structural schematic diagram of the utility model;

[0039] Figure 2 It is Figure 1 It is a right side view schematic diagram of the connecting structure;

[0040] Figure 3 It is Figure 1 It is a top view schematic diagram of the partial connecting structure;

[0041] Figure 4 For Figure 3 The middle part of the internal connection structure is shown in the perspective view.

[0042] Figure 5 For Figure 4 The middle part of the internal connection structure is shown in the perspective view.

[0043] Figure 6 For Figure 2 The middle part of the internal connection structure is shown in the perspective view.

[0044] Figure 7 For Figure 6 The middle part of the internal connection structure is shown in the perspective view.

[0045] Figure 8 For Figure 3 The middle part of the internal connection structure is shown in the perspective view.

[0046] Figure 9 For Figure 8 The middle part of the internal connection structure is shown in the perspective view.

[0047] In the figure: 1, collecting cover, 2, collecting box, 3, exhaust pipe, 4, fan, 5, filter plate, 6, first baffle, 7, second baffle, 8, magnet, 9, fixed frame, 10, moving frame, 11, extension frame, 12, connecting piece, 13, moving block, 14, double-threaded rod, 15, hand wheel, 16, cleaning plate, 17, moving plate, 18, rack, 19, straight gear, 20, bevel gear set, 21, motor, 22, oil collecting groove, 23, plugging piece. DETAILED DESCRIPTION

[0048] The utility model will be further described in connection with the drawings:

[0049] This embodiment:

[0050] Please refer to Figures 1-9 , in this embodiment: a blower device, comprising: collecting cover 1, collecting box 2, exhaust pipe 3, fan 4 and inlet switching assembly.

[0051] In this embodiment, the surface of the collecting cover 1 is provided with a through hole, one end of the through hole is an air inlet end, the other end is an air outlet end, and a slide is arranged on the inner wall of the through hole close to the air inlet end.

[0052] In this embodiment, when the oil fume is less, the oil fume can enter the collecting cover 1 through the air inlet end.

[0053] One end of the collecting box 2 is fixedly connected with the air outlet end; one end of the exhaust pipe 3 is communicated with the inside of the collecting box 2; the input end of the fan 4 is communicated with the other end of the exhaust pipe 3; and the output end of the fan 4 is communicated with the outside.

[0054] In this embodiment, the model of the fan 4 is selected according to actual requirements, and the working conditions are met; when the fan 4 is running, negative pressure is generated inside the exhaust pipe 3, the exhaust pipe 3 draws the oil fume to the fan 4 through the collecting cover 1, and sends it to the outside, so as to realize the removal of the oil fume.

[0055] The inlet switching assembly is used to change the inlet position of the oil fume; the inlet switching assembly comprises two groups of first shielding plates 6 and two groups of second shielding plates 7, one side of the first shielding plate 6 is rotationally connected with one side of the second shielding plate 7; the first shielding plate 6 is arranged in the slide way, and the first shielding plate 6 is slidingly connected with the collecting cover 1 through the slide way.

[0056] In this embodiment, when there is more oil fume, the rotating frequency of the fan 4 is increased to improve the suction of the oil fume; at this time, the second shielding plate 7 is rotated, the second shielding plate 7 is leveled with the first shielding plate 6, and the two groups of first shielding plates 6 are pushed to the middle, so that the two groups of first shielding plates 6 are butted, and the two groups of first shielding plates 6 and the two groups of second shielding plates 7 cooperate to shield the air inlet end, so that the oil fume cannot enter from the air inlet end; at the same time, the inlet switching assembly opens new openings on both sides of the air inlet end, since the air inlet direction of the opening is horizontal, and the oil fume moves vertically upward, so only the oil fume is drawn away, and the heat generated during combustion is not drawn away, and the gas that is not completely combusted is not drawn away.

[0057] As shown in Figure 8 and Figure 9 , the inlet switching assembly further comprises two groups of fixed frames 9, two groups of moving frames 10, two groups of extension frames 11 and two groups of magnets 8.

[0058] Each group of fixed frames 9 is connected with the inside of the collecting box 2 at one end; the inner wall of the fixed frame 9 is provided with a first sliding groove.

[0059] In this embodiment, the left and right sides of the fixed frame 9 are open to the direction.

[0060] Each group of moving frames 10 is provided with a first sliding block corresponding to the position of the first sliding groove, so that the first sliding block is slidingly connected with the fixed frame 9 through the first sliding groove; the inner wall of the moving frame 10 is provided with a second sliding groove.

[0061] In this embodiment, the side and the lower side of the moving frame 10 close to the collecting box 2 are open to the direction, and the direction of the oil fume can be changed; by pulling the moving frame 10 outward, the lower opening of the moving frame 10 can be opened; by sliding between the first sliding block and the first sliding groove, the moving position of the moving frame 10 is limited, so as to prevent the moving frame 10 from falling off.

[0062] Each group of extension frames 11 is provided with a second sliding block corresponding to the position of the second sliding groove, so that the second sliding block is slidingly connected with the moving frame 10 through the second sliding groove.

[0063] In this embodiment, the side and top of the extension frame 11 near the collection box 2 are open, which can change the direction of the fumes; by pulling the extension frame 11 downward, the position of the fumes extraction can be changed; the side of the extension frame 11 near the collection box 2 is the fumes intake position; by sliding between the second slider and the second slide groove, the movement position of the extension frame 11 is restricted, preventing the extension frame 11 from falling off.

[0064] One side of each set of magnets 8 is fixedly connected to the movable frame 10, and the other side is tightly fitted to the second shielding plate 7.

[0065] In this embodiment, the second shielding plate 7 can be made perpendicular to the first shielding plate 6 by using the magnet 8, thereby reducing the space occupied.

[0066] When it is necessary to open new openings on both sides of the air intake, first pull the moving frame 10 horizontally outward. After reaching the limit position, pull the extension frame 11 downward so that the oil fumes enter from the side of the extension frame 11 near the collection box 2 and enter the moving frame 10 through the upper side of the extension frame 11. Then, the oil fumes enter the fixed frame 9 through the side of the moving frame 10 near the collection box 2 and enter the collection box 2 to achieve the collection of oil fumes.

[0067] like Figure 8 As shown, the outer diameter of the movable frame 10 is equal to the inner diameter of the fixed frame 9, so that the movable frame 10 can enter the fixed frame 9.

[0068] In this embodiment, there is no gap between the movable frame 10 and the fixed frame 9 to prevent oil fume leakage.

[0069] like Figure 9 As shown, the outer diameter of the extension frame 11 is equal to the inner diameter of the movable frame 10, so that the extension frame 11 can enter the movable frame 10.

[0070] In this embodiment, there is no gap between the movable frame 10 and the extension frame 11 to prevent oil fume leakage.

[0071] The entry switching component also includes a driving component; the driving component is fixedly connected to the two sets of movable boxes 10 and is used to drive the two sets of movable boxes 10 to move relative to each other.

[0072] like Figure 8 As shown, the drive assembly includes: two sets of moving blocks 13, two sets of connecting parts 12, a double-threaded rod 14, and a handwheel 15.

[0073] Specifically, the bottom of the movable block 13 is provided with a third slider, which is slidably connected to the collection cover 1 through a third groove opened on the collection cover 1.

[0074] In this embodiment, the movement direction of the moving block 13 is limited by the sliding between the third slider and the third groove.

[0075] One end of the connecting piece 12 is fixedly connected with the moving frame 10, and the other end is fixedly connected with the moving block 13.

[0076] In this embodiment, when the moving block 13 moves horizontally, the moving frame 10 is driven to move by the connecting piece 12.

[0077] The double-headed threaded rod 14 penetrates through the two groups of moving blocks 13 and is threadedly connected with the moving blocks 13; the shaft center of the hand wheel 15 is fixedly connected with one end of the double-headed threaded rod 14.

[0078] In this embodiment, by rotating the hand wheel 15, the double-headed threaded rod 14 is driven to rotate, and because the thread directions on the two sides of the double-headed threaded rod 14 are opposite, the two groups of moving blocks 13 can be simultaneously moved towards the middle or the outside.

[0079] When it is needed to drive the two groups of moving frames 10 to move, the hand wheel 15 is rotated to drive the double-headed threaded rod 14 to rotate; because the thread directions on the two sides of the double-headed threaded rod 14 are opposite, the two groups of moving blocks 13 can be simultaneously moved towards the outside; the moving blocks 13 drive the moving frames 10 to move through the connecting pieces 12.

[0080] The air blower device further comprises a filter plate 5; the filter plate 5 is arranged in the interior of the collecting box 2 and is fixedly connected with the collecting box 2, and is used for filtering oil fume.

[0081] In this embodiment, the filter plate 5 can preliminarily filter oil liquid in the oil fume.

[0082] After the oil liquid is filtered, the oil liquid will be adhered on the filter plate 5.

[0083] To solve the above problem, an embodiment is provided in this embodiment, the air blower device further comprises a cleaning assembly; the cleaning assembly is attached with the filter plate 5 and is used for cleaning the oil liquid.

[0084] As shown in Figure 4 and 5 , the cleaning assembly comprises two groups of cleaning plates 16, two groups of moving plates 17, two groups of racks 18, two groups of spur gears 19, a motor 21 and two groups of bevel gear sets 20.

[0085] Among them, the two groups of cleaning plates 16 are arranged on the side of the filter plate 5 close to the collecting cover 1 and are attached with the filter plate 5.

[0086] In this embodiment, the oil liquid on the filter plate 5 is scraped off by simultaneously moving the two groups of cleaning plates 16 towards the middle; the cleaning plate 16 is made of glazed ceramic tile material and has the advantage of not sticking to oil liquid.

[0087] One end of each group of moving plates 17 is fixedly connected with the cleaning plate 16; each group of racks 18 is fixedly connected with the moving plate 17.

[0088] In this embodiment, the rack 18 can be moved by moving the plate 17 to move the cleaning plate 16.

[0089] The edge of each set of straight gears 19 is meshingly connected with the rack 18; the output end of the motor 21 is fixedly connected with the shaft center of the straight gear 19.

[0090] In this embodiment, the model of the motor 21 is selected according to actual needs, which meets the working conditions; when the motor 21 operates, it can drive the straight gear 19 to rotate, and the straight gear 19 will move the rack 18.

[0091] Each bevel gear set 20 is composed of a first bevel gear and a second bevel gear, the edge of the first bevel gear is meshingly connected with the edge of the second bevel gear; the shaft center of the first bevel gear is fixedly connected with the shaft center of the straight gear 19 away from the motor 21; the shaft centers of the two sets of second bevel gears are fixedly connected.

[0092] In this embodiment, the model of the motor 21 is selected according to actual needs, which meets the working conditions.

[0093] When the motor 21 operates, it will drive the straight gear 19 connected with the motor 21 to rotate, which will drive a set of first bevel gears to rotate, the set of first bevel gears will drive a set of second bevel gears to rotate, the set of second bevel gears will simultaneously drive another set of second bevel gears to rotate, the other set of second bevel gears will drive another set of first bevel gears to rotate, and the rotation of the other set of first bevel gears will drive another set of straight gears 19 to rotate, because the rotation directions of the two sets of straight gears 19 are opposite, the moving directions of the two sets of racks 18 are opposite, and the rack 18 will move the cleaning plate 16 through the moving plate 17.

[0094] The air blower device further comprises an oil collecting assembly; the oil collecting assembly is fixedly connected with the collecting cover 1 and is used for collecting oil; the oil collecting assembly further comprises an oil collecting groove 22 and a plugging piece 23.

[0095] The oil collecting groove 22 is fixedly connected with the collecting cover 1; the plugging piece 23 penetrates through the collecting cover 1 and extends into the inside of the oil collecting groove 22.

[0096] In this embodiment, the scraped oil will flow into the oil collecting groove 22, and the oil in the oil collecting groove 22 can be cleaned by pulling out the plugging piece 23.

[0097] Working principle:

[0098] When the air blower device is in use, when the oil fume is less, the fan 4 is operated to make the fan 4 rotate slowly, the fan 4 will generate negative pressure in the inside of the exhaust pipe 3, the exhaust pipe 3 will draw the oil fume into the fan 4 through the air inlet end of the collecting cover 1 and send it to the outside to achieve the cleaning of the oil fume.

[0099] When the oil fume is more, the rotating frequency of the fan 4 is increased to improve the suction of the oil fume, at this time, the second baffle 7 is rotated to make the second baffle 7 and the first baffle 6 flat, and the two groups of first baffles 6 are pushed to the middle to make the two groups of first baffles 6 butt joint, and the two groups of first baffles 6 and the two groups of second baffles 7 jointly shield the air inlet end, so that the oil fume cannot enter from the air inlet end;

[0100] Meanwhile, the hand wheel 15 is rotated to drive the double-headed threaded rod 14 to rotate; due to the opposite threaded directions of the double-headed threaded rod 14 on both sides, the two groups of moving blocks 13 can be simultaneously moved outward; the moving block 13 drives the moving frame 10 to move through the connecting piece 12;

[0101] With the movement of the moving frame 10, after reaching the limit position, the extension frame 11 is pulled downward, so that the oil fume enters from the side of the extension frame 11 close to the collecting box 2, and enters into the moving frame 10 through the upper side of the extension frame 11, then the oil fume enters into the fixed frame 9 through the side of the moving frame 10 close to the collecting box 2, and enters into the collecting box 2, so as to realize the collection of the oil fume, since the direction of the oil fume is horizontal and the oil fume moves vertically upward, only the oil fume is sucked, the heat generated during combustion is not sucked, and the gas which is not completely combusted is not sucked.

[0102] With the filtration of the oil fume, the oil liquid is adhered on the filter plate 5, at this time, the motor 21 is operated, the motor 21 drives the spur gears 19 connected with the motor 21 to rotate, drives a group of first bevel gears to rotate, the group of first bevel gears drives a group of second bevel gears to rotate, the group of second bevel gears simultaneously drives another group of second bevel gears to rotate, the other group of second bevel gears drives another group of first bevel gears to rotate, the rotation of the other group of first bevel gears drives another group of spur gears 19 to rotate, due to the opposite rotation directions of the two groups of spur gears 19, the moving directions of the two groups of racks 18 are opposite, the rack 18 drives the cleaning plate 16 to move through the moving plate 17; the cleaning plate 16 of the glazed ceramic tile material scrapes off the oil liquid to realize the cleaning of the oil liquid.

[0103] The cleaned oil liquid flows into the oil collecting groove 22, the oil liquid in the oil collecting groove 22 can be cleaned away by pulling out the blocking piece 23, and the use of the device is completed.

[0104] Although the utility model has been illustrated and described through the reference preferred embodiments, but, the person skilled in the art should understand that, in the scope of claims, can make various changes in form and detail.

Claims

1. A blower device, characterized by: The utility model relates to a kitchen exhaust hood, which comprises: a collecting cover (1) having a through hole formed on a surface thereof, one end of the through hole being an air inlet end and the other end being an air outlet end, a sliding channel being formed on an inner wall of the through hole close to the air inlet end; a collecting box (2) fixedly connected to the air outlet end; an exhaust pipe (3) having one end connected to an inner portion of the collecting box (2); a fan (4) having an input end connected to the other end of the exhaust pipe (3) and an output end connected to the outside; an inlet switching assembly for changing the inlet position of oil fume, the inlet switching assembly comprising two groups of first shielding plates (6) and two groups of second shielding plates (7), one side of the first shielding plate (6) being rotatably connected to one side of the second shielding plate (7), the first shielding plate (6) being arranged in the sliding channel and being slidably connected to the collecting cover (1) through the sliding channel.

2. The blower arrangement of claim 1, wherein: The inlet switching assembly further comprises: two groups of fixed frames (9), one end of each group of fixed frames (9) being connected to the inner portion of the collecting box (2), a first sliding groove being formed on an inner wall of the fixed frame (9); two groups of moving frames (10), each group of moving frames (10) being provided with a first sliding block at a position corresponding to the first sliding groove, the first sliding block being slidably connected to the fixed frame (9) through the first sliding groove, a second sliding groove being formed on an inner wall of the moving frame (10); two groups of extension frames (11), each group of extension frames (11) being provided with a second sliding block at a position corresponding to the second sliding groove, the second sliding block being slidably connected to the moving frame (10) through the second sliding groove; two groups of magnets (8), one side of each group of magnets (8) being fixedly connected to the moving frame (10) and the other side being closely attached to the second shielding plate (7).

3. The blower arrangement of claim 2, wherein: The outer diameter of the moving frame (10) is equal to the inner diameter of the fixed frame (9), so that the moving frame (10) can enter the fixed frame (9).

4. The blower arrangement of claim 2, wherein: The outer diameter of the extension frame (11) is equal to the inner diameter of the moving frame (10), so that the extension frame (11) can enter the moving frame (10).

5. The blower arrangement of claim 2, wherein: The inlet switching assembly further comprises a driving assembly fixedly connected to the two groups of moving frames (10) and used for driving the two groups of moving frames (10) to move relative to each other.

6. The blower arrangement of claim 5, wherein: The driving assembly comprises: two groups of moving blocks (13), the bottom end of each moving block (13) being provided with a third sliding block, the third sliding block being slidably connected to the collecting cover (1) through a third sliding groove formed on the collecting cover (1); two groups of connecting members (12), one end of each connecting member (12) being fixedly connected to the moving frame (10) and the other end being fixedly connected to the moving block (13); a double-headed threaded rod (14) penetrating through the two groups of moving blocks (13) and being threadedly connected to the moving blocks (13); a hand wheel (15), the shaft center of the hand wheel (15) being fixedly connected to one end of the double-headed threaded rod (14).

7. The blower arrangement of claim 1, wherein: The utility model further comprises: The filter plate (5) is arranged in the interior of the collecting box (2) and is fixedly connected with the collecting box (2), and is used for filtering oil fume.

8. The blower arrangement of claim 7, wherein: Further comprising: The cleaning assembly is attached to the filter plate (5) and is used for cleaning oil.

9. The air blower device of claim 8, wherein: The cleaning assembly comprises: Two groups of cleaning plates (16) are arranged on the side of the filter plate (5) close to the collecting cover (1) and are attached to the filter plate (5); Two groups of moving plates (17) are fixedly connected with the cleaning plates (16) at one end; Two groups of racks (18) are fixedly connected with the moving plates (17); Two groups of spur gears (19) are meshingly connected with the edges of the racks (18); A motor (21) is fixedly connected with the shaft center of the spur gear (19) at the output end; Two groups of bevel gear sets (20) are each composed of a first bevel gear and a second bevel gear, the edges of the first bevel gear are meshingly connected with the edges of the second bevel gear, the shaft center of the first bevel gear is fixedly connected with the shaft center of the spur gear (19) away from the motor (21), and the shaft centers of the two groups of second bevel gears are fixedly connected.

10. The blower device of claim 1, wherein: Further comprising: An oil collecting assembly; The oil collecting assembly is fixedly connected with the collecting cover (1) and is used for collecting oil, and further comprises: An oil collecting groove (22) is fixedly connected with the collecting cover (1); A plugging piece (23) penetrates through the collecting cover (1) and extends into the interior of the oil collecting groove (22).