EC intelligent group control method and system

Abstract

The EC intelligent group control system comprises a fan box, clamping plates are fixedly installed on the two sides of the bottom end of the interior of the fan box, a lead screw is rotationally installed between the clamping plates, a circular shaft is fixedly installed between the clamping plates, the surface of the lead screw is in threaded connection with a movable plate in a sleeving mode, and the movable plate is in threaded connection with the fan box. The inner surface of the moving plate is movably connected with the outer surface of the circular shaft, a rotating shaft is rotatably mounted on one side of the clamping plate, one side of the rotating shaft penetrates through the clamping plate and is fixedly connected with one side of the lead screw, a vertical plate is fixedly mounted at the bottom end of the interior of the fan box, and a rolling shaft is rotatably mounted on one side of the vertical plate; the outer surface of the rolling shaft and the outer surface of the rotating shaft are movably sleeved with a belt. In the daily use process, an operator starts a motor, the motor runs to enable a rolling shaft to rotate, then the rolling shaft drives a belt to rotate, and then the belt drives a rotating shaft to rotate.

Description

Technical Field

[0001] The present invention relates to the technical field of EC fans, and in particular to an EC intelligent group control method and system. Background Art

[0002] EC fans refer to centrifugal fans that use digital brushless DC external rotor motors or centrifugal fans that use EC motors. EC fans integrate AC and DC voltages to achieve perfect phase change effects between the two voltages. The motor runs under DC voltage and can choose to use single-phase or three-phase AC power supplies. The motor also contains a voltage conversion control circuit. The working principle of the EC fan is based on electronic commutation technology. The commutation and speed of the motor are controlled by position sensors and inverter modules. The motor runs under DC voltage and converts AC voltage into DC voltage through the commutation circuit, thereby achieving efficient and silent operation. It has a built-in intelligent control system. It can realize remote single control, group control, and local control. The intelligent group control system is a system that controls multiple mobile phones or devices in batches through a computer or a computer client. It can realize the synchronous operation of hundreds of mobile phones or devices. The group control system realizes centralized management of multiple mobile phones or devices through powerful networking functions and flexible configuration methods. It can map multiple mobile phone operation interfaces to the computer monitor, and through system automation control integration technology, it can achieve the effect of controlling dozens or even hundreds of mobile phones by one computer. The intelligent group control system is needed to control the EC fan, so an EC intelligent group control system is needed.

[0003] When operators control fans, they often use corresponding control systems. Although the existing systems can achieve the purpose of control, ordinary fans are mostly used in actual use. The installation structure is cumbersome, the control method of the fans is single, and the degree of intelligence is low. Summary of the invention

[0004] The purpose of the present invention is to provide an EC intelligent group control method and system to solve the problem mentioned in the above background technology that operators often use corresponding control systems when controlling fans. Although the existing systems can achieve the purpose of control, ordinary fans are mostly used in actual use, and the installation structure is cumbersome. The control method of the fans is single and the degree of intelligence is low.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an EC intelligent group control system, comprising a fan box, both sides of the inner bottom end of the fan box are fixedly installed with clamping plates, a screw rod is rotatably installed between the clamping plates, a round shaft is fixedly installed between the clamping plates, a movable plate is threadedly sleeved on the surface of the screw rod, the inner surface of the movable plate is movably connected to the outer surface of the round shaft, a rotating shaft is rotatably installed on one side of the clamping plate, one side of the rotating shaft passes through the clamping plate and is fixedly connected to one side of the screw rod, a vertical plate is fixedly installed on the inner bottom end of the fan box, and the A roller is rotatably installed on one side of the vertical plate, and a belt is movably sleeved on the outer surface of the roller and the outer surface of the rotating shaft. A motor is fixedly installed on the other side of the vertical plate, and the output end of the motor passes through the vertical plate and is fixedly connected to one side of the roller. A loading plate is fixedly installed on the top of the movable plate, and strip grooves are provided at both ends of the inner bottom end of the fan box, and round rods are fixedly installed inside the strip grooves, and moving blocks are movably sleeved on the surface of the round rods, and vertical rods are fixedly installed on the top of the moving blocks, and the top of the vertical rod is fixedly connected to the bottom of the loading plate.

[0006] Preferably, a mounting frame is fixedly installed on the top of the loading plate, circular grooves are equidistantly provided at one end of the mounting frame, an EC fan is fixedly installed at an equidistant inner end of the mounting frame, a pressure difference sensor is fixedly installed at one end of the EC fan, and a baffle is fixedly installed at one end of the mounting frame.

[0007] Preferably, an electric air valve is fixedly installed inside the fan box, electric hydraulic rods are fixedly installed at both ends of the bottom of the loading plate, and anti-slip pads are fixedly installed at the bottom of the electric hydraulic rods.

[0008] Preferably, mounting grooves are opened at equal distances at one end of the fan box, mounting plates are fixedly installed inside the mounting grooves, air outlet grooves are opened at equal distances at one end of the mounting plates, storage grooves are opened at equal distances at the other end of the fan box, storage plates are fixedly installed inside the storage grooves, and air inlet grooves are opened at equal distances at one end of the storage plates.

[0009] Preferably, an intelligent control box is fixedly mounted on one side of the fan box, a display screen is fixedly mounted on one side of the intelligent control box, and a switch button and an adjustment button located below the display screen are fixedly mounted on one end of the intelligent control box.

[0010] Preferably, a movable door is hinged on the other side of the fan box, and a handle is fixedly installed on one side of the movable door.

[0011] Preferably, a bolt is rotatably mounted on one side of the movable door, and one side of the bolt passes through the movable door and extends to the interior of the fan box.

[0012] An EC intelligent group control method comprises the following steps:

[0013] S1. First, the operator starts the motor. The operation of the motor will cause the roller to rotate, and then the roller will drive the belt to rotate, and then the belt will drive the shaft to rotate. At this time, the shaft will drive the screw to rotate. Due to the limiting effect of the circular shaft, the screw will drive the moving plate to slide on the surface of the circular shaft, and then the moving plate will drive the carrier plate to slide. At the same time, the carrier plate will drive the vertical rod to slide, and then the vertical rod will drive the moving block to slide inside the strip groove and on the surface of the circular rod until the carrier plate slides out of the fan box.

[0014] S2. Then start the electric hydraulic rod. The operation of the electric hydraulic rod will cause the anti-skid pad to slide until the anti-skid pad is placed on the ground, so as to provide auxiliary support for the loading board to make it more stable. The EC fan can be installed on the top of the loading board. Next, slide the handle, and the handle will drive the movable door to slide, so that the fan box is in a closed state. Then turn the bolt and screw it into the inside of the movable door and the fan box, so that the movable door and the fan box can be connected.

[0015] S3. Finally, the motor, EC fan, pressure difference sensor, intelligent control box, display screen, switch button and adjustment button are connected through wires, and then the EC fan is started by the switch button. The operation of the EC fan will introduce the wind into the fan box through the air inlet slot, and then the wind will pass through the circular slot and the baffle and be discharged from the air outlet slot. At the same time, the adjustment button can adjust the wind speed of the EC fan and display the data on the display screen, so that personnel can view the status in real time and intuitively.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] In the daily use of this EC intelligent group control system, the operator starts the motor, and the operation of the motor causes the roller to rotate, and then the roller drives the belt to rotate, and then the belt drives the shaft to rotate, and at this time the shaft drives the lead screw to rotate, and due to the limiting effect of the circular shaft, the lead screw drives the moving plate to slide on the surface of the circular shaft, and then the moving plate drives the carrier plate to slide, and at the same time the carrier plate drives the vertical rod to slide, and then the vertical rod drives the moving block to slide inside the strip groove and on the surface of the circular rod, until the carrier plate slides out of the fan box, and the EC fan can be installed on the top of the carrier plate, thereby reducing the complexity of installation.

[0018] This EC intelligent group control system, during daily use, the operator can use the pressure difference sensor to monitor the EC fan. If the pressure is abnormal, it can be judged whether it is good or bad. Then the switch button can be used to open and close the EC fan and the wind speed can be adjusted by the adjustment button. The display screen can display the data for the convenience of the operator to observe. It adopts an intelligent group control system, which can realize remote single control, group control, local control, BA joint control, and cloud platform control, thereby improving its intelligence level. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view of the present invention;

[0020] Figure 2 is a cross-sectional view of the present invention;

[0021] Figure 3 For the present invention Figure 2 A partial enlarged view of the middle part;

[0022] Figure 4 It is a schematic diagram of the internal structure of the fan box of the present invention;

[0023] Figure 5 It is a structural schematic diagram of one side of the fan box of the present invention;

[0024] Figure 6 It is a structural schematic diagram of one end of the fan box of the present invention.

[0025] In the figure: 1. fan box; 2. clamping plate; 3. screw rod; 4. round shaft; 5. moving plate; 6. rotating shaft; 7. vertical plate; 8. roller; 9. belt; 10. motor; 11. loading plate; 12. strip groove; 13. round rod; 14. moving block; 15. vertical rod; 16. mounting frame; 17. round groove; 18. EC fan; 19. differential pressure sensor; 20. baffle; 21. electric air valve; 22. electric hydraulic rod; 23. non-slip foot pad; 24. mounting groove; 25. mounting plate; 26. air outlet groove; 27. storage groove; 28. storage plate; 29. ​​air inlet groove; 30. intelligent control box; 31. display screen; 32. switch button; 33. adjustment button; 34. movable door; 35. handle; 36. bolt. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-6The present invention provides a technical solution: an EC intelligent group control system, including a fan box 1, both sides of the inner bottom of the fan box 1 are fixedly installed with clamping plates 2, the number of the clamping plates 2 is two, and the two clamping plates 2 have the same size, a screw rod 3 is rotatably installed between the clamping plates 2, a round shaft 4 is fixedly installed between the clamping plates 2, a moving plate 5 is threadedly sleeved on the surface of the screw rod 3, when the screw rod 3 rotates between the clamping plates 2, it will drive the moving plate 5 to slide on the surface of the round shaft 4, the inner surface of the moving plate 5 is movably connected with the outer surface of the round shaft 4, the inner surface of the moving plate 5 and the outer surface of the round shaft 4 are both smooth, so that the moving plate 5 can slide more smoothly on the surface of the round shaft 4, reducing the occurrence of jamming, and the round shaft 4 can limit the running trajectory of the moving plate 5 so that the moving plate 5 Sliding horizontally, a rotating shaft 6 is rotatably installed on one side of the splint 2, one side of the rotating shaft 6 penetrates the splint 2 and is fixedly connected to one side of the screw rod 3, and the rotating shaft 6 will drive the screw rod 3 to rotate when it rotates, a vertical plate 7 is fixedly installed on the inner bottom end of the fan box 1, and a roller 8 is rotatably installed on one side of the vertical plate 7, and a belt 9 is movably sleeved on the outer surface of the roller 8 and the outer surface of the rotating shaft 6. When the roller 8 rotates, the belt 9 will be driven to rotate, and then the rotating shaft 6 will be driven to rotate, and a motor 10 is fixedly installed on the other side of the vertical plate 7, and the output end of the motor 10 penetrates the vertical plate 7 and is fixedly connected to one side of the roller 8. When the motor 10 is running, the roller 8 will rotate, and a loading plate 11 is fixedly installed on the top of the movable plate 5, and the movable plate 5 will drive the loading plate 11 to slide when it slides. The fan box 1 is movable, and both ends of the inner bottom end are provided with strip grooves 12, and round rods 13 are fixedly installed inside the strip grooves 12. The surfaces of the round rods 13 are movably sleeved with moving blocks 14. The inner surfaces of the moving blocks 14, the inner surfaces of the strip grooves 12, and the outer surfaces of the round rods 13 are all smooth, so that the moving blocks 14 can slide more smoothly inside the strip grooves 12 and on the surfaces of the round rods 13, and the jamming is reduced. The tops of the moving blocks 14 are fixedly installed with vertical rods 15, and the vertical rods 15 will drive the moving blocks 14 to slide inside the strip grooves 12 and on the surfaces of the round rods 13 when sliding, and the tops of the vertical rods 15 are fixedly connected to the bottom of the loading plate 11, and the loading plate 11 will drive the vertical rods 15 to slide when sliding, and at the same time, the vertical rods 15 will slide the loading plate 11 The mounting frame 16 is fixedly mounted on the top of the loading plate 11, and the mounting frame 16 is convenient for mounting the EC fan 18. Circular grooves 17 are equidistantly provided at one end of the mounting frame 16, and the circular grooves 17 are adapted to the EC fan 18. The EC fan 18 is equidistantly fixedly mounted at one end of the mounting frame 16. The model of the EC fan 18 may be B3P630-EC188. The EC fan 18 refers to a centrifugal fan using a digital brushless DC outer rotor motor or a centrifugal fan using an EC motor, which integrates AC and DC voltages to achieve a perfect phase change effect of the two voltages. The motor runs under DC voltage, and can choose to use a single-phase or three-phase AC power supply, and includes a voltage conversion control circuit inside the motor.Its principle is based on electronic commutation technology. It uses a permanent magnet synchronous motor to directly drive the impeller, eliminating the traditional mechanical commutation device. This design enables it to achieve precise speed control while reducing energy consumption and improving energy efficiency. The EC fan 18 has a built-in intelligent control system, which can realize remote single control, group control, local control, BA joint control, and cloud platform control. It can automatically adjust the speed according to actual needs to achieve the best working state, thereby reducing maintenance costs and extending service life. Due to the design of multiple EC fans 18 to form a wind wall, the EC smart wind wall has a large air volume and high pressure, low noise, and high energy efficiency. Under the same air volume and air pressure, the EC smart wind wall saves 20% energy, and the EC smart DC brushless motor and high-efficiency impeller reduce energy efficiency by 25% under the same air volume and air pressure, and reduce noise by more than 10dB. The control has stepless speed change and signal feedback. A pressure differential sensor 19 is fixedly installed on one end of the EC fan 18. The model of this pressure differential sensor 19 can be QBE2001-P10U. The pressure differential sensor is a kind of pressure sensor used to measure two The pressure difference sensor is usually used to measure the pressure difference between the front and rear ends of a device or component. The working principle of the pressure difference sensor is that the measured pressure directly acts on the diaphragm of the sensor, causing the diaphragm to produce a micro-displacement proportional to the water pressure, causing the capacitance value of the sensor to change, and using electronic circuits to detect this change, and converting and outputting a standard measurement signal of the corresponding pressure. The model of the pressure difference sensor 19 can be ECY-211T-B, and its range is between -500 and 500Pa. The pressure difference sensor 19 is a sensor used to measure the difference between two pressures. The measured pressure directly acts on the diaphragm of the sensor, causing the diaphragm to produce a micro-displacement proportional to the water pressure, causing the capacitance value of the sensor to change, and using electronic circuits to detect this change, and converting and outputting a standard measurement signal of the corresponding pressure. It can detect the quality of the EC fan 18 through the change of the pressure difference, and a baffle 20 is fixedly installed at one end of the mounting frame 16. The baffle 20 can prevent foreign objects from damaging the EC fan 18, thereby protecting it. ,

[0028] An electric air valve 21 is fixedly installed inside the fan box 1. The electric air valve 21 is a device for controlling the flow of gas. It is mainly used in the dust-containing cold air or hot air gas pipelines of ventilation and environmental protection projects in hardware, chemical, building materials, power stations, glass and other industries as a flow regulating or cutting device for gas medium. It has the characteristics of small operating torque, convenient operation, labor-saving and dexterity. It is designed and manufactured with a new structural form of centerline disc plate and short structural steel plate welding. It has a compact structure, light weight, and is easy to install and maintain. The actuator is driven by an electric motor to make the disc plate rotate freely within a range of 90°. It is easy to operate, labor-saving and dexterous. There are no connecting rods, bolts and other components inside. It has reliable operation and long service life. It is suitable for use in various working conditions and adapts to various installation methods. It is not affected by media The influence of mass flow direction is flexible to use. Both ends of the bottom of the carrier plate 11 are fixedly installed with electric hydraulic rods 22. The electric hydraulic rod 22 is a new type of transmission mechanism integrating mechanical, electrical and hydraulic. It is mainly used to realize reciprocating push-pull linear motion or reciprocating rotation of a certain angle. It can also be used in places where workpieces are raised, lowered or clamped, and can be centralized or program-controlled at long distances and in dangerous areas. It drives the hydraulic oil to output pressure oil through a two-way gear pump through the forward or reverse rotation of the motor, and sends it to the working cylinder through the oil circuit integrated block, thereby realizing the reciprocating motion of the piston rod. The motor drives the two-way hydraulic pump through forward and reverse rotation to output pressure oil, which is sent to the cylinder through the hydraulic control valve to realize the reciprocating motion of the piston rod. The electric hydraulic rod 22 has a compact structure. , easy to install, small space occupation, simple maintenance, when the external force on the piston rod exceeds the rated output force, the overflow valve will overflow quickly to achieve overload protection and prevent the motor from burning, adopts full hydraulic transmission, sensitive action, stable operation, can effectively buffer external impact force, precise stroke control, electromechanical and hydraulic integrated fully enclosed structure, the working oil circuit circulates in a pressure-free closed steel cylinder, does not leak oil, adapts to harsh environments, has a long service life, and the bottom of the electric hydraulic rod 22 is fixedly installed with an anti-skid pad 23. When the electric hydraulic rod 22 is running, it will drive the anti-skid pad 23 to slide until the bottom of the anti-skid pad 23 is placed on the ground, and the electric hydraulic rod 22 and the anti-skid pad 23 can be used to assist the support of the loading plate 11 to make it more stable. The material can be rubber material to increase the friction with the ground. One end of the fan box 1 is equidistantly provided with mounting grooves 24, and mounting plates 25 are fixedly installed inside the mounting grooves 24. The mounting grooves 24 are convenient for installing the mounting plates 25. One end of the mounting plates 25 is equidistantly provided with air outlet grooves 26, and the air outlet grooves 26 are used for air outlet work. The other end of the fan box 1 is equidistantly provided with storage grooves 27, and storage plates 28 are fixedly installed inside the storage grooves 27. The storage grooves 27 are convenient for installing the storage plates 28, and one end of the storage plates 28 is equidistantly provided with air inlet grooves 29, and the air inlet grooves 29 are used for air intake work. When the EC fan 18 is running, the wind will be introduced into the interior of the fan box 1 through the air inlet grooves 29, and then the wind will be discharged through the air outlet grooves 26.An intelligent control box 30 is fixedly installed on one side of the fan box 1. A display screen 31 is fixedly installed on one side of the intelligent control box 30. The model of this display screen 31 can be XFCLED001. The display is also usually called a monitor. The display is an I / O device belonging to the computer, that is, an input and output device. It is a display tool that displays certain electronic files on the screen through a specific transmission device and then reflects them to the human eye. According to different manufacturing materials, it can be divided into: cathode ray tube display (CRT), plasma display PDP, liquid crystal display LCD, etc. The display screen 31 is a display tool that displays certain electronic files on the screen through a specific transmission device. The display screen 31 can display data for the convenience of observation by operators, and one side of the intelligent control box 30 A switch button 32 and an adjustment button 33 are fixedly installed below the display screen 31. The model of this switch button may be SS2-E23C-RG5. The switch button is a main command electrical appliance with a simple structure and is widely used. In the electrical automatic control circuit, it is used to manually send control signals to control contactors, relays, electromagnetic starters, etc. There are many types of push button switches, which can be divided into ordinary push button type, mushroom head type, self-locking type, self-reset type, rotary handle type, indicator light type, light symbol type and key type, etc. There are single button, double button, three buttons and different combinations. Generally, a building block structure is adopted, which is composed of a button cap, a reset spring, a bridge contact and a shell, etc. It is usually made into a composite type with a pair of normally closed contacts and normally open contacts. Some products can increase the number of contact pairs by connecting multiple components in series. There is also a self-holding button, which can automatically maintain the closed position after being pressed and can only be opened after power is cut off. The switch button 32 can control the opening and closing of the EC fan 18, and the adjustment button 33 can adjust its wind speed. A movable door 34 is hinged on the other side of the fan box 1. A handle 35 is fixedly installed on one side of the movable door 34. The movable door 34 can be slid through the handle 35 to make it open or closed. A bolt 36 is rotatably installed on one side of the movable door 34, and one side of the bolt 36 passes through the movable door 34 and extends to the inside of the fan box 1. The bolt 36 is rotated and screwed into the movable door 34 and the inside of the fan box 1 to close the fan box 1 and make its connection tighter.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An EC intelligent group control system, comprising a fan box (1), characterized in that: Both sides of the inner bottom end of the fan box (1) are fixedly installed with clamping plates (2), a screw rod (3) is rotatably installed between the clamping plates (2), a round shaft (4) is fixedly installed between the clamping plates (2), a movable plate (5) is threadedly sleeved on the surface of the screw rod (3), the inner surface of the movable plate (5) is movably connected to the outer surface of the round shaft (4), a rotating shaft (6) is rotatably installed on one side of the clamping plate (2), one side of the rotating shaft (6) passes through the clamping plate (2) and is fixedly connected to one side of the screw rod (3), a vertical plate (7) is fixedly installed on the inner bottom end of the fan box (1), a roller (8) is rotatably installed on one side of the vertical plate (7), and the outer surface of the roller (8) is movably connected to the rotating shaft (6). A belt (9) is movably sleeved on the outer surface of the shaft (6); a motor (10) is fixedly mounted on the other side of the vertical plate (7); an output end of the motor (10) passes through the vertical plate (7) and is fixedly connected to one side of the roller (8); a loading plate (11) is fixedly mounted on the top of the movable plate (5); strip grooves (12) are provided at both ends of the inner bottom end of the fan box (1); round rods (13) are fixedly mounted inside the strip grooves (12); a moving block (14) is movably sleeved on the surface of the round rod (13); a vertical rod (15) is fixedly mounted on the top of the moving block (14); and the top of the vertical rod (15) is fixedly connected to the bottom of the loading plate (11).

2. An EC intelligent group control system according to claim 1, characterized in that: A mounting frame (16) is fixedly mounted on the top of the loading plate (11), circular grooves (17) are provided at equal distances on one end of the mounting frame (16), an EC fan (18) is fixedly mounted at equal distances on one end of the interior of the mounting frame (16), a differential pressure sensor (19) is fixedly mounted on one end of the EC fan (18), and a baffle (20) is fixedly mounted on one end of the mounting frame (16).

3. The EC intelligent group control system according to claim 1, characterized in that: An electric air valve (21) is fixedly installed inside the fan box (1), electric hydraulic rods (22) are fixedly installed at both ends of the bottom of the loading plate (11), and anti-slip pads (23) are fixedly installed at the bottom of the electric hydraulic rods (22).

4. The EC intelligent group control system according to claim 1, characterized in that: One end of the fan box (1) is provided with mounting grooves (24) at equal distances, a mounting plate (25) is fixedly mounted inside the mounting grooves (24), one end of the mounting plate (25) is provided with air outlet grooves (26) at equal distances, the other end of the fan box (1) is provided with storage grooves (27) at equal distances, a storage plate (28) is fixedly mounted inside the storage grooves (27), and one end of the storage plate (28) is provided with air inlet grooves (29) at equal distances.

5. The EC intelligent group control system according to claim 1, characterized in that: An intelligent control box (30) is fixedly mounted on one side of the fan box (1), a display screen (31) is fixedly mounted on one side of the intelligent control box (30), and a switch button (32) and an adjustment button (33) located below the display screen (31) are fixedly mounted on one end of the intelligent control box (30).

6. The EC intelligent group control system according to claim 1, characterized in that: A movable door (34) is hingedly connected to the other side of the fan box (1), and a handle (35) is fixedly mounted on one side of the movable door (34).

7. The EC intelligent group control system according to claim 1, characterized in that: A bolt (36) is rotatably mounted on one side of the movable door (34), and one side of the bolt (36) passes through the movable door (34) and extends into the interior of the fan box (1).

8. An EC intelligent group control method according to claims 1-7, characterized in that: The following steps are involved: S1. First, the operator starts the motor (10). The operation of the motor (10) causes the roller (8) to rotate, and then the roller (8) drives the belt (9) to rotate. Then the belt (9) drives the rotating shaft (6) to rotate. At this time, the rotating shaft (6) drives the screw rod (3) to rotate. Due to the limiting effect of the circular shaft (4), the screw rod (3) drives the moving plate (5) to slide on the surface of the circular shaft (4). Then the moving plate (5) drives the loading plate (11) to slide. At the same time, the loading plate (11) drives the vertical rod (15) to slide. Then the vertical rod (15) drives the moving block (14) to slide inside the strip groove (12) and on the surface of the circular rod (13), until the loading plate (11) slides out of the fan box (1); S2, then start the electric hydraulic rod (22), the operation of which causes the anti-skid pad (23) to slide until the anti-skid pad (23) is placed on the ground, thereby providing auxiliary support for the loading board (11) to make it more stable, and then install the EC fan (18) on the top of the loading board (11), then slide the handle (35), and the handle (35) will drive the movable door (34) to slide, thereby putting the fan box (1) in a closed state, and then turn the bolt (36) and screw it into the movable door (34) and the fan box (1), so that the movable door (34) and the fan box (1) can be connected; S3. Finally, the motor (10), the EC fan (18), the pressure difference sensor (19), the intelligent control box (30), the display screen (31), the switch button (32) and the adjustment button (33) are connected through wires. Then, the EC fan (18) is started through the switch button (32). The operation of the EC fan (18) introduces wind into the interior of the fan box (1) through the air inlet slot (29). Then, the wind passes through the circular slot (17) and the baffle (20) and is discharged from the air outlet slot (26). At the same time, the adjustment button (33) can adjust the wind speed of the EC fan (18), and the data is displayed through the display screen (31), so that personnel can conveniently view the status in real time and intuitively.

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