A high air volume air supply device

Abstract

The application relates to a high-air-volume air supply device which comprises a shell, a fan, a plurality of air supply tubes and an adjusting assembly; the shell is internally provided with a mounting cavity; the fan is mounted on the shell; the plurality of air supply tubes are arranged in the mounting cavity; the adjusting assembly comprises a rotating piece, a driven gear and a cutoff plate, the driven gear is arranged at one end of the air inlet of each air supply tube, the driven gear is provided with an idle slot, the cutoff plate is fixedly arranged on the driven gear, the rotating piece is arranged in the mounting cavity and rotationally connected with the shell, the rotating piece is provided with an engaging part and a pushing part; the driven gear has two states, in the first state, the driven gear is connected with the engaging part and is arranged in interval with the pushing part, the high-precision rotation of the driven gear is realized through the engaging transmission of the rotating piece; in the second state, the idle slot of the driven gear is connected with the pushing part and is arranged in interval with the engaging part, through the precise matching of the pushing part and the idle slot, the precise limiting of the rotation angle of the driven gear is realized.

Description

Technical Field

[0001] This invention relates to the field of vortex ring air supply technology, and in particular to a high air volume air supply device. Background Technology

[0002] Due to its low wind speed and long-distance air delivery characteristics, vortex rings can be used in air conditioning or other air supply-related equipment to propagate the output airflow at a lower wind speed, reducing the perceived wind speed for users and improving comfort. However, the uniformity of airflow within the vortex ring channel will greatly affect the structural stability of the vortex ring, and thus affect the propagation distance of the vortex ring.

[0003] When the air supply duct is fully open or fully closed, the cut-off plate moves at a constant speed, allowing airflow to rush into the air supply duct and allowing the airflow to settle after the air supply duct is closed, respectively. If the cut-off plate continues to move at a constant speed while opening or closing the air supply duct, the air resistance will constantly change as the airflow enters the air supply duct, reducing the uniformity of the airflow within the air supply duct and affecting the stability of the vortex ring generation.

[0004] To solve the above-mentioned technical problems, there is an urgent need for a multi-pipe intermittent air supply device with simple structure, precise transmission, high air supply efficiency and good synchronization. Therefore, this application proposes a high air volume air supply device. Summary of the Invention

[0005] In view of this, it is necessary to provide a high air volume air supply device to solve the above problems.

[0006] This invention provides a high-volume air supply device, including a housing, a fan, multiple air supply ducts, and an adjusting assembly. The housing has an installation cavity. The fan is mounted on the housing and supplies air to the installation cavity. Multiple air supply ducts are disposed within the installation cavity and fixedly connected to the housing. Each air supply duct has an air inlet at its end near the fan and an air outlet at its end away from the fan for communication with the outside. The adjusting assembly includes a rotating component, a driven gear, and a cutting plate. The number of driven gears and the cutting plate is the same as the number of air supply ducts. Each air supply duct has the driven gear rotatably mounted at its air inlet end. The driven gear has inert grooves extending radially thereon, the number of which is the same as the number of air ducts. The cut-off plate is fixedly mounted on the driven gear, and the cut-off plate is used to open and close the air inlet by the rotation of the driven gear. The rotating member is located in the mounting cavity and is rotatably connected to the outer casing. The rotating member has a meshing part and a actuating part. Each driven gear has a first state and a second state. When the driven gear is in the first state, the driven gear is meshed with the meshing part and spaced apart from the actuating part. When the driven gear is in the second state, the inert groove of the driven gear is engaged with the actuating part and spaced apart from the meshing part.

[0007] Furthermore, the number of air supply ducts is four, and the four air supply ducts are evenly arranged around the circumference of the rotating component. There are also four driven gears and four cut-off plates. Each driven gear has four idler grooves, and the four idler grooves on each driven gear are evenly arranged around its circumference. The rotating component has two meshing parts and two actuating parts, and the two meshing parts and the two actuating parts are staggered around the circumference of the rotating component. The two meshing parts mesh with two opposite driven gears, and the two actuating parts contact the idler grooves of the other two opposite driven gears.

[0008] Furthermore, the rotating component is a turntable, the meshing part is teeth formed on the outer wall of the turntable, and the actuating part is a lever formed on the outer wall of the turntable.

[0009] Furthermore, the rotating component also includes a docking ring and an extension plate. The docking ring is coaxially fixedly mounted on the turntable, one end of the extension plate is fixedly connected to the outer wall of the docking ring, and the other end of the extension plate is fixedly connected to the lever.

[0010] Furthermore, the rotating component also includes a motor, which is fixedly connected to the housing, and the output end of the motor is connected to the turntable to drive the turntable to rotate.

[0011] Furthermore, the air inlet is located at a non-central position of the air inlet duct, and the cut plate has a windproof portion with a cross-sectional area larger than that of the air inlet, the movement path of which covers the air inlet of the air inlet duct.

[0012] Furthermore, an installation hole is provided at the center of one end of the air supply duct near the fan. The cut plate is connected to the installation hole via a protruding rotating part. Both ends of the cut plate are connecting parts, which are mounted on the driven gear and fixedly connected to the driven gear.

[0013] Furthermore, the adjustment assembly also includes a buffer, and the output end of the motor is connected to the turntable via the buffer.

[0014] Furthermore, the buffer includes a mounting block, an arc-shaped spring, and an arc-shaped stop block. The mounting block, arc-shaped spring, and stop block are arranged sequentially along the rotation direction of the turntable. The output end of the motor is fixedly connected to the mounting hole. The mounting block is fixedly connected to the arc-shaped stop block via the arc-shaped spring. The arc-shaped stop block is fixedly connected to the turntable.

[0015] Furthermore, the outer casing includes a first fixed cylinder, a second fixed cylinder, and a base plate. One end of the first fixed cylinder is connected to one end of the second fixed cylinder, and the fan is installed at the other end of the second fixed cylinder. The inner cavity of the second fixed cylinder is recessed inward to form a receiving annular cavity for placing the driven gear. The other end of the first fixed cylinder is fixedly connected to the base plate. The base plate has through holes corresponding to the number of air inlets. The air inlets are installed on the base plate, and the air outlets of the air inlets are connected to the through holes. The rotating component is rotatably connected to the base plate.

[0016] Compared to existing technologies, when the rotating component achieves uniform rotation of the driven gear (i.e., between multiple cut-off plates) through meshing transmission, the rotating component and the driven gear form a reduction transmission mechanism. This allows for a relatively long air intake time when the air duct is open and a relatively long settling time when it is closed. This ensures sufficient airflow to generate the vortex ring within the air duct and provides enough time for the airflow to settle. When the actuating part of the rotating component contacts the driven gear, the relationship between them changes from identical linear velocities at the gear edges to identical angular velocities. Therefore, the rotating component and the driven gear no longer form a reduction transmission mechanism, resulting in faster speeds for the cut-off plates when opening and closing the air duct. This significantly alleviates the uneven airflow at this point, improving the stability of the vortex ring. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the overall external structure of the high air volume air supply device provided in the embodiment of the present invention; Figure 2 This is a schematic diagram of the overall internal structure of the high air volume air supply device provided in the embodiment of the present invention; Figure 3 for Figure 2 Installation diagram between the central air supply duct and the base plate; Figure 4 for Figure 2 Schematic diagram of the rotating component; Figure 5 for Figure 2 Top view of the middle section plate; Figure 6 for Figure 2 A bottom view of the middle section plate; Figure 7 for Figure 2 A schematic diagram of the middle buffer component. Detailed Implementation

[0018] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0019] like Figure 1-2As shown in the figure, an embodiment of the present invention provides a high-volume air supply device, including a housing 100, a fan 200, multiple air supply ducts 300, and an adjustment assembly 400; the housing 100 has an installation cavity; the fan 200 is mounted on the housing 100 and is used to supply air to the installation cavity; multiple air supply ducts 300 are all disposed in the installation cavity and fixedly connected to the housing 100, and each air supply duct 300 has an air inlet 310 at the end near the fan 200 and an air outlet 320 at the end away from the fan 200 for connecting to the outside; the adjustment assembly 400 includes a rotating component 410, a driven gear 420, and a cutting plate 430, the number of driven gears 420 and the number of cutting plates 430 are the same as the number of air supply ducts 300, and each air supply duct 300 has a driven gear at the end of its air inlet 310. Gear 420, driven gear 420 has idler grooves 421 extending in its radial direction, the number of idler grooves 421 is the same as the number of air ducts 300, cut-off plate 430 is fixedly installed on driven gear 420, cut-off plate 430 is used to open and close air inlet 310 by the rotation of driven gear 420, rotating member 410 is installed in mounting cavity and rotatably connected to housing 100, rotating member 410 has meshing part 411 and actuating part 412, wherein each driven gear 420 has a first state and a second state, when driven gear 420 is in the first state, driven gear 420 is meshed with meshing part 411 and spaced apart from actuating part 412, when driven gear 420 is in the second state, idler groove 421 of driven gear 420 is engaged with actuating part 412 and spaced apart from meshing part 411.

[0020] In practice, when the rotating component 410 achieves uniform rotation of the driven gear 420 (i.e., between multiple cut-off plates) through meshing transmission, since the rotating component and the driven gear form a reduction transmission mechanism, the air intake time when the air supply duct 300 is opened and the settling time when it is closed can be relatively long. This allows a sufficient amount of airflow to flow through the air supply duct 300 to generate a vortex ring, and also provides sufficient time for the airflow within the air supply duct 300 to settle. When the actuating part 412 of the rotating component 410 contacts the driven gear 420, the relationship between the rotating component 410 and the driven gear 420 changes from the same linear velocity at the gear edge to the same angular velocity. Therefore, the rotating component and the driven gear no longer form a reduction transmission mechanism, which allows the cut-off plate 430 to operate faster when opening and closing the air supply duct 300. At this time, the uneven airflow generated when the airflow passes through this point is greatly alleviated, which is beneficial to improving the stability of the vortex ring.

[0021] In this embodiment, the outer casing 100 serves as a load-bearing structure, providing space for the formation of the vortex ring. Specifically, the outer casing 100 has an installation cavity, the fan 200 is installed on one side of the outer casing 100, and the air supply duct 300 is installed on the other side of the outer casing 100. Initially, the air inlet 310 of the air supply duct 300 is closed, and air is delivered to the installation cavity by the fan 200. The air volume regulating component 400 controls the air inlet 310 of the air supply duct 300 to open, and the airflow is discharged through the air supply duct 300 to generate the vortex ring.

[0022] like Figure 3 As shown, in one embodiment, the outer casing 100 includes a first fixed cylinder 110, a second fixed cylinder 120, and a base plate 130. One end of the first fixed cylinder 110 is connected to one end of the second fixed cylinder 120. A fan 200 is installed at the other end of the second fixed cylinder 120. The inner cavity of the second fixed cylinder 120 is recessed outward to form a receiving annular cavity 121 for placing the driven gear 420. The other end of the first fixed cylinder 110 is fixedly connected to the base plate 130. The base plate 130 has through holes corresponding to the number of air inlets. The air inlets are installed on the base plate 130, and the air outlet 320 of the air inlets is connected to the through holes. The rotating member 410 is rotatably connected to the base plate 130.

[0023] In this embodiment, the fan 200 is mounted on the housing 100 and is used to supply air to the mounting cavity. It is understood that the fan 200 is a structure that can be conceived by those skilled in the art, and will not be described or explained in detail here.

[0024] In this embodiment, the adjustment component 400 is used to adjust the opening and closing of the air inlets 310 of multiple air ducts 300. Specifically, the adjustment component 400 includes a rotating component 410, a driven gear 420, and a cutting plate 430. The number of driven gears 420 and cutting plates 430 is the same as the number of air ducts 300. Each air duct 300 has a driven gear 420 rotatably mounted at one end of its air inlet 310. The driven gear 420 has an idler groove 421 extending in its radial direction. The number of idler grooves 421 is the same as the number of air ducts 300. The cutting plate 430 is fixedly mounted on the driven gear 420. The cutting plate 430 is used to open and close the air inlet 310 by rotating the driven gear 420. The rotating component 410 is located in the mounting cavity and rotatably connected to the outer casing 100. The rotating component 410 has a meshing part 411 and a toggle part 412.

[0025] In this embodiment, there are four air supply ducts 300, which are evenly arranged around the circumference of the rotating member 410. There are also four driven gears 420 and four cutting plates 430. Each driven gear 420 has four idler grooves 421, which are evenly arranged around its circumference. The rotating member 410 has two meshing parts 411 and two actuating parts 412, which are staggered around the circumference of the rotating member 410. The two meshing parts 411 mesh with two opposite driven gears 420, and the two actuating parts 412 contact the idler grooves 421 of the other two opposite driven gears 420. The driven gear 420 does not contact either the meshing part 411 or the actuating part 412 at any given time; it only contacts one of them.

[0026] Among them, two opposite air supply ducts 300 form a set of air ducts. The two sets of air ducts are in an alternating opening and closing state. When one set of air ducts is open to supply air, the other set of air ducts is closed to cut off air supply, ensuring the regularity and regional coordination of air supply.

[0027] Of course, in other preferred embodiments, the air supply duct 300 can also be set to two, six, etc., and the number of air supply ducts 300 should be determined according to actual needs.

[0028] In one embodiment, the rotating member 410 is a turntable, the meshing part 411 is teeth formed on the outer wall of the turntable, and the actuating part 412 is a lever formed on the outer wall of the turntable.

[0029] like Figure 4 As shown, in one embodiment, the rotating component 410 further includes a docking ring 412a and an extension plate 412b. The docking ring 412a is coaxially fixedly disposed on the turntable, one end of the extension plate 412b is fixedly connected to the outer wall of the docking ring 412a, and the other end of the extension plate 412b is fixedly connected to the lever.

[0030] Understandably, the docking ring 412a facilitates the installation of multiple extension plates 412b to connect multiple levers; by controlling the length of the extension plate 412b, the distance from the lever to the driven wheel can be controlled, thereby controlling the angle of rotation of the driven gear 420 in the second state.

[0031] To facilitate the rotation of the turntable, in one embodiment, the rotating component 410 further includes a motor 440, which is fixedly connected to the housing 100. The output end of the motor 440 is connected to the turntable to drive the turntable to rotate.

[0032] like Figure 5-6As shown, it can be understood that the air inlet 310 is located at a non-central position in the air inlet duct, and the cut-off plate 430 has a windbreak portion 431 with a cross-sectional area larger than that of the air inlet 310. The movement path of the windbreak portion 431 covers the air inlet 310 of the air inlet duct. It can be understood that the windbreak portion 431 can adopt an elliptical plate, a circular plate, or other structures, and there is no limitation on this.

[0033] The air supply duct 300 has a mounting hole 330 at the center of one end near the fan 200. The cut plate 430 is connected to the mounting hole 330 via a protruding rotating part 432. Both ends of the cut plate 430 are connecting parts 433, which are mounted on the driven gear 420 and fixedly connected to the driven gear 420.

[0034] The adjustment component 400 in this embodiment also includes a buffer 450, and the output end of the motor 440 is connected to the turntable via the buffer 450.

[0035] like Figure 7 As shown, in one embodiment, the buffer 450 includes a mounting block 451, an arc spring 452, and an arc stop 453. The mounting block 451, the arc spring 452, and the stop are arranged sequentially along the rotation direction of the turntable. The output end of the motor 440 is fixedly connected to the mounting hole 330. The mounting block 451 is fixedly connected to the arc stop 453 via the arc spring 452. The arc stop 453 is fixedly connected to the turntable.

[0036] When the motor 440 runs at high speed, it will exert pressure on the arc spring 452, so that when the guide rod on the turntable is engaged in the idler groove 421 of one of the driven gears 420, the turntable can generate a small axial and circumferential buffer displacement along the shaft of the motor 440, avoiding rigid hard contact between the guide rod and the idler groove 421, and between the teeth of the turntable and the teeth of the driven gear 420, thus reducing the impact of tooth collision from the source of transmission contact.

[0037] The specific working principle of the buffer anti-collision tooth is as follows: When the actuating part 412 slides out of the idler groove 421, the driven gear 420 is stationary. However, the rotating part 410 is directly driven by the motor 440 and always maintains a constant speed. Therefore, at the next moment, the meshing part 411, which runs at a certain speed, will collide with the driven gear 420. If there is no buffer anti-collision tooth structure, after a certain working time, the meshing part 411 will break due to repeated impacts.

[0038] The inner diameter of the turntable is larger than the diameter of the motor 440 shaft, and the turntable is supported only by the annular washer on the end face of the motor 440. This structure allows the turntable to have a small circumferential rotational range along the shaft. If the teeth of the turntable are about to rigidly collide with the teeth of the driven gear 420, the resulting contact impact force will be transmitted to the turntable. At this time, the elastic deformation of the arc spring 452 will quickly absorb the impact force, transforming the rigid impact into a flexible contact with elastic buffer. That is, the squeezing force generated by the high-speed rotation of the motor 440 will first push the arc spring 452 to elastically contract, causing the turntable to make a small circumferential adjustment along the shaft, so that the teeth of the gear can achieve flexible alignment and meshing. This avoids problems such as tooth breakage and wear caused by instantaneous hard contact.

[0039] Furthermore, the elastic buffering effect of the arc spring 452 accompanies the high-speed operation of the motor 440 throughout the entire cycle in which the turntable sequentially drives the four driven gears 420, continuously providing flexible buffering for the meshing of the gear teeth. This effectively reduces contact impact and vibration under high-speed transmission, significantly reducing the probability of violent tooth collision between the driving gear and the driven gear 420, reducing wear and fatigue damage on the gear tooth surfaces, and thus significantly extending the overall service life of the gear transmission assembly. At the same time, it also ensures the transmission stability and air delivery accuracy of the device under high-speed operation. Workflow: (1) After the equipment is started, the fan 200 continues to run to generate a stable air source, and the air is gathered inside the outer casing 100; (2) The motor 440 starts and drives the turntable to rotate at a constant speed around its own axis. When the turntable rotates, the guide rod at the end of the extension plate 412b connected to it moves in a circular motion synchronously with the turntable. (3) When the guide rod rotates to the position of the idler groove 421 facing a certain driven gear 420, the guide rod slides into the idler groove 421 and generates thrust, which drives the driven gear 420 to accelerate instantly. Since the cut-off plate 430 is fixedly connected to the driven gear 420, the cut-off plate 430 rotates synchronously. The principle behind the guide rod sliding into the idler groove 421 on the driven gear 420 as the turntable rotates, thereby causing the driven gear 420 to accelerate instantaneously, is as follows: When the rotating component 410 achieves uniform rotation of the driven gear 420 (i.e., among multiple cut-off plates) through meshing transmission, since the rotating component and the driven gear form a reduction transmission mechanism, the air intake time when the air supply duct 300 is opened and the settling time when it is closed can be relatively long. This allows a sufficient amount of airflow to flow through the air supply duct 300 to generate vortex rings, and also provides sufficient time for the airflow within the air supply duct 300 to settle. When the actuating part 412 of the rotating component 410 contacts the driven gear 420, the relationship between the rotating component 410 and the driven gear 420 changes from the same linear velocity at the gear edges to the same angular velocity. Therefore, the rotating component and the driven gear no longer form a reduction transmission mechanism, resulting in faster speed of the cut-off plate 430 when opening and closing the air supply duct 300.

[0040] It is important to note that: The first duct 5a and the third duct 5c form one group; the second duct 5b and the fourth duct 5d form another group. During the operation of the device... (4) During the rotation of the cut-off plate 430, the wind baffle 431 on it controls the opening and closing of the air inlet 310 of the air inlet tube: in the initial state, the wind baffle 431 blocks the air inlet 310, and the air supply is interrupted; after rotation, the wind baffle 431 disengages from the air inlet 310, and the wind in the annular cavity 121 enters the air supply tube 300 through the air inlet 310, and then is output through the air outlet 320, thereby generating a vortex ring flow towards the target area; (5) The turntable continues to rotate. After the guide rod slides out of the current idler groove 421, it continues to move to the idler groove 421 of the next driven gear 420, repeating the above-mentioned thrust transmission process, so that the four driven gears 420 are driven to rotate by the meshing part 411 and the actuating part 412 in sequence, thereby realizing the intermittent vortex ring air supply of the four air supply pipes.

[0041] Compared with existing technologies: 1. Deep integration of gear and indexing wheel characteristics achieves a balance between precise stepping and stable transmission: This device innovatively combines gear transmission (driven gear 420 in the first state) with the indexing wheel positioning principle (driven gear 420 in the second state). The quarter-slotted idler groove 421 of the driven gear 420 is equivalent to the indexing structure of the indexing wheel. The cooperation between the guide rod and the idler groove 421 achieves precise positioning and stepping action of the indexing wheel, ensuring that each driven gear 420 rotates rapidly only when the guide rod is in action, meeting the requirement for uniform airflow in the duct during vortex ring air supply. At the same time, the meshing part 411 of the rotating component 410 and the meshing transmission of the driven gear 420 inherit the stable deceleration advantage of gear transmission, realizing the speed difference between when the air supply duct is fully opened or closed by the cut-off plate and at the moment of opening and closing. This makes the vortex ring effect more stable. 2. High gear transmission ratio precision ensures synchronization of air supply in multiple ducts: The driving gear and four driven gears 420 adopt a meshing transmission design. The inherent high transmission ratio precision of the gear transmission ensures that the rotation cycle of the four driven gears 420 is strictly consistent, thereby ensuring that the air supply interval cycle of the four air supply ducts 300 is completely synchronized, avoiding time differences in air supply in multiple areas, significantly improving the coordination of air supply in multiple areas, and making it suitable for precision operation scenarios with high synchronization requirements.

[0042] 3. Precise positioning using indexing wheels enhances airflow control accuracy: Leveraging the core advantages of precise indexing wheel positioning, the guide rod and the quarter-inch idler groove 421 achieve precise limiting of the driven gear 420's rotation. This ensures precise controllability of the opening and closing angle of the cut-off plate 430 relative to the air inlet 310 of the air supply duct 300. Simultaneously, the rotational speed of the cut-off plate 430 is significantly increased compared to the gear meshing state. This avoids air leakage caused by incomplete obstruction of the air inlet 310 and accelerates the cut-off plate's response speed to the flow channel switch, making the "on / off switching" of intermittent airflow more precise, and significantly improving airflow efficiency and effectiveness.

[0043] 4. Uniform and smooth transition phase, enhancing the reliability of device operation: The motor 440 controls the turntable to maintain a uniform rotation speed. During the process of the guide rod sliding into and out of the idler groove 421, the smooth transmission of gear meshing effectively buffers the thrust impact, making the transition phase of the driven gear 420 from "stationary" to "rotating" and then back to "stationary" uniform and smooth, without jamming or impact. This reduces wear between components, lowers the failure rate, and significantly improves the long-term operational reliability and service life of the device.

[0044] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A high-volume air supply device, characterized in that, include: The outer casing has a mounting cavity inside; A fan, which is mounted on the housing, is used to deliver air into the mounting cavity; Multiple air supply ducts are provided in the mounting cavity and fixedly connected to the outer shell. Each air supply duct has an air inlet at the end near the fan and an air outlet at the end away from the fan for connecting to the outside. The adjustment assembly includes a rotating component, a driven gear, and a cutting plate. The number of driven gears and the number of cutting plates are the same as the number of air ducts. Each air duct has a driven gear rotatably mounted at one end of its air inlet. The driven gear has a slot extending radially on it, and the number of slots is the same as the number of air ducts. The cutting plate is fixedly mounted on the driven gear. The cutting plate is used to open and close the air inlet by rotating the driven gear. The rotating component is located in the mounting cavity and rotatably connected to the outer casing. The rotating component has a meshing part and a turning part. Each driven gear has a first state and a second state. When the driven gear is in the first state, it is engaged with the meshing part and spaced apart from the actuating part. When the driven gear is in the second state, the idler groove of the driven gear is engaged with the actuating part and spaced apart from the meshing part.

2. The high-volume air supply device according to claim 1, characterized in that, The number of air supply ducts is four, and the four air supply ducts are evenly arranged around the circumference of the rotating component. There are four driven gears and four cut-off plates. Each driven gear has four idler grooves, and the four idler grooves on each driven gear are evenly arranged around its circumference. The rotating component has two meshing parts and two actuating parts. The two meshing parts and two actuating parts are staggered around the circumference of the rotating component. The two meshing parts are meshed with two opposite driven gears, and the two actuating parts are in contact with the idler grooves of the other two opposite driven gears.

3. The high-volume air supply device according to claim 1, characterized in that, The rotating component is a turntable, the meshing part is teeth formed on the outer wall of the turntable, and the actuating part is a lever formed on the outer wall of the turntable.

4. The high-volume air supply device according to claim 3, characterized in that, The rotating component also includes a docking ring and an extension plate. The docking ring is coaxially fixedly mounted on the turntable. One end of the extension plate is fixedly connected to the outer wall of the docking ring, and the other end of the extension plate is fixedly connected to the lever.

5. The high-volume air supply device according to claim 3, characterized in that, The rotating component also includes a motor, which is fixedly connected to the housing. The output end of the motor is connected to the turntable to drive the turntable to rotate.

6. The high-volume air supply device according to claim 1, characterized in that, The air inlet is located at a non-central position of the air inlet duct, and the cut plate has a windproof part with a cross-sectional area larger than that of the air inlet. The movement path of the windproof part covers the air inlet of the air inlet duct.

7. The high-volume air supply device according to claim 1, characterized in that, An installation hole is provided at the center of one end of the air supply duct near the fan. The cut plate is connected to the installation hole via a protruding rotating part. Both ends of the cut plate are connecting parts, which are mounted on the driven gear and fixedly connected to the driven gear.

8. The high-volume air supply device according to claim 5, characterized in that, The adjustment assembly also includes a buffer, and the output end of the motor is connected to the turntable via the buffer.

9. The high-volume air supply device according to claim 8, characterized in that, The buffer includes a mounting block, an arc-shaped spring, and an arc-shaped stop. The mounting block, arc-shaped spring, and stop are arranged sequentially along the rotation direction of the turntable. The output end of the motor is fixedly connected to the mounting hole. The mounting block is fixedly connected to the arc-shaped stop via the arc-shaped spring. The arc-shaped stop is fixedly connected to the turntable.

10. The high-volume air supply device according to claim 1, characterized in that, The outer casing includes a first fixed cylinder, a second fixed cylinder, and a base plate. One end of the first fixed cylinder is connected to one end of the second fixed cylinder, and the fan is installed at the other end of the second fixed cylinder. The inner cavity of the second fixed cylinder is recessed to form a receiving annular cavity for placing the driven gear. The other end of the first fixed cylinder is fixedly connected to the base plate. The base plate has through holes corresponding to the number of air inlets. The air inlets are installed on the base plate, and the air outlets of the air inlets are connected to the through holes. The rotating component is rotatably connected to the base plate.

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