Assembling type air curtain machine

The modular design and automatic cleaning system solve the problems of transportation and high-altitude installation of large industrial air curtain machines, achieving efficient installation and automated cleaning, and improving the efficiency and safety of the equipment.

CN223965568UActive Publication Date: 2026-03-03GUANGZHOU RUILONG ELECTRICAL EQUIP CO LTD
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Patent Information

Application Number
CN202520525575.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-25
Publication Date
2026-03-03
Estimated Expiration
2035-03-25

AI Technical Summary

Technical Problem

Large industrial air curtain machines present challenges in transportation and high-altitude installation due to their large size, heavy weight, and installation difficulties, increasing the risks and time costs associated with high-altitude operations.

Method used

Adopting a modular design, multiple air curtain machines are assembled on the ground using channel steel, connecting steel frames, and U-shaped frames, and then hoisted and fixed at high altitude. Combined with filter plates, barrier nets, and a cleaning system, it achieves airflow filtration and insect blocking, and automatic cleaning is achieved through threaded rods and drive motors.

Benefits of technology

It reduces the difficulty and time cost of high-altitude operations, improves installation efficiency, ensures airflow filtration and insect blocking capabilities, and also achieves automated cleaning functions, extending the service life of the equipment.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses an assembly type air curtain machine which comprises a plurality of air curtain machine bodies arranged transversely, channel steel is oppositely fixed to the outer walls of the top ends of the air curtain machine bodies through bolts, a plurality of connecting steel frames are fixed to the opposite sides of the two channel steel bodies through bolts, and the outer walls of the top ends of the two channel steel bodies are fixedly connected with a plurality of U-shaped frames. The outer wall of the top end of the U-shaped frame is fixedly connected with a hoisting bolt, the air curtain machine comprises a shell, an air inlet is formed in the side wall of the shell, an air outlet is formed in the outer wall of the bottom end of the shell, a draught fan body is installed on the inner wall of the shell, a draught fan motor is arranged on one side of the draught fan body, and a blocking net is fixed to the inner wall of the bottom end of the shell. A filter plate is fixed to the inner wall of the side face of the shell. According to the air curtain machine, through the arrangement of the channel steel, the connecting steel frame and the U-shaped frame, a plurality of air curtain machines are assembled on the ground and then are installed, the high-altitude operation time is shortened, and the assembling difficulty is lowered.
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Description

Technical Field

[0001] This utility model relates to the field of air curtain machine technology, and in particular to an assemblable air curtain machine. Background Technology

[0002] The air curtain machine generates a powerful airflow by rotating a high-speed motor inside. This airflow removes suspended particles within the airflow output range, forming an air barrier between the two sides of the air curtain machine to block indoor and outdoor air and prevent the exchange of heat between them. At the same time, it also has the functions of dust prevention, pollution prevention, and mosquito and fly prevention.

[0003] A search revealed Chinese patent publication number CN215062741U, which discloses an easy-to-install industrial explosion-proof air curtain machine. The machine includes a housing, a control board, and an explosion-proof distribution box. The housing has an air inlet on the front and an air outlet near the bottom. A crossflow fan is installed inside the housing, driven by a fan motor and rotating to output airflow through the outlet, forming an air curtain. The explosion-proof distribution box is fixed to the top of the housing. The housing is an elongated strip-shaped shell structure composed of a face shield and a back shell. The upper sides of the back of the back shell have two symmetrical inverted L-shaped fasteners, and the lower sides have two symmetrical inclined support plates. The inclined support plates have mounting holes. The two inclined support plates abut against the lower end of the back panel and are secured together through the mounting holes on the back panel, the support plate mounting holes, and a third bolt, allowing the housing to be mounted on the back panel. The back panel is mounted on the wall through a main mounting hole.

[0004] This patented explosion-proof distribution box, with its sealed enclosure structure, is fixed to the top of the machine casing, and the control board is located inside the box. This avoids wear and tear caused by dust inside and outside the casing, resulting in excellent explosion-proof performance, high safety and reliability, and a long service life. However, large industrial air curtain machines are often transported in multiple units and then assembled during installation. Their large size and weight make high-altitude installation of individual units cumbersome and difficult. Assembling them at height would be even more challenging, requiring more time and increasing the risks for installation personnel. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a modular air curtain machine.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An assemblable air curtain machine includes multiple air curtain machines arranged horizontally. The top outer walls of the multiple air curtain machines are fixed with channel steel by bolts. Multiple connecting steel frames are fixed to opposite sides of two of the channel steels by bolts. Multiple U-shaped frames are fixedly connected to the top outer walls of the two channel steels. The top outer walls of the U-shaped frames are fixedly connected with lifting bolts. The other end of the lifting bolts is connected to the building wall.

[0008] As a further embodiment of this utility model: the air curtain machine includes a housing, an air inlet is provided on the side wall of the housing, an air outlet is provided on the outer wall of the bottom end of the housing, a fan body is installed on the inner wall of the housing, and a fan motor is provided on one side of the fan body.

[0009] As a further embodiment of this utility model: a barrier net is fixed to the inner wall of the bottom end of the housing, the barrier net being opposite to the air outlet, and a filter plate is fixed to the inner wall of the side of the housing, the filter plate being opposite to the air inlet.

[0010] As a further embodiment of this utility model: a groove is provided on the inner wall of the top of the housing, and a threaded rod is rotatably connected to the inner wall of the groove. A drive motor is provided at one end of the threaded rod, and the output shaft of the drive motor is connected to the threaded rod. A moving block is slidably connected to the inner wall of the housing, and the top of the moving block is threadedly engaged with the threaded rod.

[0011] As a further improvement of this utility model: the side wall of the housing is provided with a placement groove, and the placement groove is on the same straight line as the moving block.

[0012] As a further improvement of this utility model: a cleaning wheel is rotatably connected to the inner wall of one side of the moving block, and the cleaning wheel is in contact with the filter plate.

[0013] As a further embodiment of this utility model: the moving block is provided with a collection cavity, one side of the collection cavity is connected to the cleaning wheel mounting space, the top of the cleaning wheel shaft is connected to a drive wheel, and the drive wheel is in contact with the inner wall of the housing.

[0014] As a further improvement of this utility model: an exhaust fan is provided at the bottom of the collection chamber, a through hole is provided on the outer wall of the movable block on one side of the exhaust fan, and a sieve plate is provided on the inner wall of the collection chamber, with the sieve plate located above the exhaust fan.

[0015] Compared with the prior art, this utility model provides a modular air curtain machine, which has the following advantages:

[0016] 1. This utility model, by setting up channel steel, connecting steel frame and U-shaped frame, allows multiple air curtain machines to be assembled on the ground before installation, reducing the time spent working at height and lowering the difficulty of assembly.

[0017] 2. This utility model, by setting up a filter plate and a barrier net, filters the incoming airflow by removing dust mixed in with the airflow when the filter plate passes through it; when the air curtain machine stops working, since there is no longer airflow at the air outlet, insects can enter the air outlet, and the barrier net can block the insects and prevent them from entering the shell along the air outlet.

[0018] 3. This utility model, by comprising a movable block, a placement groove, a cleaning wheel, a drive wheel, a collection chamber, an exhaust fan, a threaded rod, and a drive motor, allows dust to accumulate on the filter plate after the air curtain machine has been operating for a period of time. At this time, the drive motor drives the threaded rod to rotate, causing the movable block located inside the placement groove to move along the threaded rod, thus moving the cleaning wheel to clean the filter plate. Simultaneously, the friction between the drive wheel and the inner wall of the air curtain machine causes the drive wheel to rotate, which in turn drives the cleaning wheel to rotate, increasing the friction between the cleaning wheel bristles and the filter plate, resulting in a better cleaning effect. At the same time, the exhaust fan starts, drawing the air out of the collection chamber and sucking the floating dust brushed off by the cleaning wheel into the collection chamber. After cleaning is completed, the drive motor reverses, returning the movable block to the placement groove.

[0019] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a modular air curtain machine proposed in this utility model.

[0021] Figure 2 This is a cross-sectional view of a modular air curtain machine proposed in this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of a modular air curtain machine moving block and filter plate proposed in this utility model.

[0023] Figure 4 This is a schematic diagram of the internal structure of a modular air curtain machine proposed in this utility model.

[0024] Figure 5 This is a schematic diagram of the structure of a modular air curtain machine motor and threaded rod proposed in this utility model.

[0025] Figure 6 This is a schematic diagram of the internal structure of a modular air curtain machine moving block proposed in this utility model.

[0026] In the diagram: 1. Air curtain machine; 2. Channel steel; 3. Connecting steel frame; 4. U-shaped frame; 5. Lifting screw; 6. Housing; 7. Filter plate; 8. Air inlet; 9. Air outlet; 10. Barrier net; 11. Fan body; 12. Fan motor; 13. Moving block; 14. Placement slot; 15. Cleaning wheel; 16. Drive wheel; 17. Collection chamber; 18. Exhaust fan; 19. Threaded rod; 20. Drive motor. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0028] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] Example 1

[0030] A modular air curtain machine, such as Figure 1 As shown, the system includes multiple horizontally arranged air curtain machines 1. The outer walls of the top of the multiple air curtain machines 1 are fixed with channel steel 2 by bolts. Multiple connecting steel frames 3 are fixed to the opposite side of two channel steel 2 by bolts. Multiple U-shaped frames 4 are fixedly connected to the outer walls of the top of two channel steel 2. The outer walls of the top of the U-shaped frames 4 are fixedly connected with lifting bolts 5. The other end of the lifting bolts 5 is connected to the building wall.

[0031] When installing the air curtain machine 1, two channel steels 2, multiple connecting steel frames 3, and U-shaped frames 4 are bolted together to form an installation frame. Then, multiple air curtain machines 1 are fixed to the bottom of the installation frame with bolts. After the power supply and control lines are arranged, the assembled whole is lifted by hoisting and fixed as a whole by hoisting screws 5.

[0032] By setting up channel steel 2, connecting steel frame 3 and U-shaped frame 4, multiple air curtain machines 1 can be assembled on the ground before installation, reducing the time spent working at height and lowering the difficulty of assembly.

[0033] Example 2

[0034] A modular air curtain machine is described in this embodiment, which is based on Embodiment 1 and makes the following improvements, such as... Figures 1 to 6As shown, the air curtain machine 1 includes a housing 6. An air inlet 8 is provided on the side wall of the housing 6, and an air outlet 9 is provided on the outer bottom wall of the housing 6. A fan body 11 is installed on the inner wall of the housing 6, and a fan motor 12 is provided on one side of the fan body 11. A barrier net 10 is fixed to the inner bottom wall of the housing 6, and the barrier net 10 is positioned opposite to the air outlet 9. A filter plate 7 is fixed to the inner side wall of the housing 6, and the filter plate 7 is positioned opposite to the air inlet 8. A groove is formed on the inner top wall of the housing 6, and a threaded rod 19 is rotatably connected to the inner wall of the groove. A drive motor 20 is provided at one end of the threaded rod 19, and the output shaft of the drive motor 20 is connected to the threaded rod 19. A moving block 13 is slidably connected to the inner wall of the housing 6. The top of the movable block 13 is threadedly engaged with the threaded rod 19. The side wall of the housing 6 is provided with a placement groove 14, which is aligned with the movable block 13. A cleaning wheel 15 is rotatably connected to one inner wall of the movable block 13. The cleaning wheel 15 is in contact with the filter plate 7. A collection chamber 17 is provided inside the movable block 13. One side of the collection chamber 17 is connected to the installation space of the cleaning wheel 15. A drive wheel 16 is connected to the top of the rotating shaft of the cleaning wheel 15. The drive wheel 16 is in contact with the inner wall of the housing 6. An exhaust fan 18 is provided at the bottom of the collection chamber 17. A through hole is provided on the outer wall of the movable block 13 on one side of the exhaust fan 18. A sieve plate is provided on the inner wall of the collection chamber 17, which is located above the exhaust fan 18.

[0035] When the air curtain machine 1 is working, the fan motor 12 drives the fan body 11 to rotate, so that airflow enters from the air inlet 8 and exits from the air outlet 9 to form an air curtain. When the incoming airflow passes through the filter plate 7, the filter plate 7 filters the airflow and removes dust mixed in with the airflow. When the air curtain machine 1 stops working, since there is no airflow at the air outlet 9, insects can enter the air outlet 9. The barrier net 10 can block the insects and prevent them from entering the housing 6 along the air outlet 9. After the air curtain machine 1 has been working for a period of time, dust has accumulated on the filter plate 7. At this time, the drive motor 20 drives the screw... The threaded rod 19 rotates, causing the movable block 13 located inside the placement groove 14 to move along the threaded rod 19, which in turn moves the cleaning wheel 15 to clean the filter plate 7. At the same time, the friction between the drive wheel 16 and the inner wall of the air curtain machine 1 causes the drive wheel 16 to rotate, which in turn drives the cleaning wheel 15 to rotate, increasing the friction between the bristles of the cleaning wheel 15 and the filter plate 7, resulting in a better cleaning effect on the filter plate 7. Meanwhile, the exhaust fan 18 starts, drawing the gas out of the collection chamber 17 and sucking the floating dust brushed off by the cleaning wheel 15 into the collection chamber 17. After cleaning is completed, the drive motor 20 reverses, taking the movable block 13 back into the placement groove 14.

[0036] By setting up a filter plate 7 and a barrier net 10, when the incoming airflow passes through the filter plate 7, the filter plate 7 filters the airflow and removes dust mixed in with the airflow; when the air curtain machine 1 stops working, since there is no longer airflow at the air outlet 9, insects can enter the air outlet 9, and the barrier net 10 can block the insects and prevent them from entering the interior of the housing 6 along the air outlet 9.

[0037] By setting up a moving block 13, a placement slot 14, a cleaning wheel 15, a drive wheel 16, a collection chamber 17, an exhaust fan 18, a threaded rod 19, and a drive motor 20, after the air curtain machine 1 has been working for a period of time, dust accumulates on the filter plate 7. At this time, the drive motor 20 drives the threaded rod 19 to rotate, causing the moving block 13 located inside the placement slot 14 to move along the threaded rod 19, causing the cleaning wheel 15 to move and clean the filter plate 7. At the same time, the friction between the drive wheel 16 and the inner wall of the air curtain machine 1 causes the drive wheel 16 to rotate, driving the cleaning wheel 15 to rotate, increasing the friction between the bristles of the cleaning wheel 15 and the filter plate 7, resulting in a better cleaning effect on the filter plate 7. At the same time, the exhaust fan 18 starts, drawing the air out of the collection chamber 17 and sucking the floating dust brushed off by the cleaning wheel 15 into the collection chamber 17. After cleaning is completed, the drive motor 20 reverses and puts the moving block 13 back into the placement slot 14.

[0038] Working principle: When installing the air curtain machine 1, two channel steels 2, multiple connecting steel frames 3, and U-shaped frames 4 are bolted together to form a mounting frame. Then, multiple air curtain machines 1 are fixed to the bottom of the mounting frame with bolts. After the power supply and control lines are arranged, the assembled unit is lifted by hoisting and fixed as a whole by hoisting screws 5. When the air curtain machine 1 is working, the fan motor 12 drives the fan body 11 to rotate, so that airflow enters from the air inlet 8 and exits from the air outlet 9 to form an air curtain. When the incoming airflow passes through the filter plate 7, the filter plate 7 filters the airflow and removes dust mixed in with the airflow. When the air curtain machine 1 stops working, since there is no airflow at the air outlet 9, insects can enter the air outlet 9. The barrier net 10 can block the insects. To prevent insects from entering the housing 6 through the air outlet 9, after the air curtain machine 1 has been working for a period of time, dust accumulates on the filter plate 7. At this time, the drive motor 20 drives the threaded rod 19 to rotate, causing the moving block 13 located inside the placement groove 14 to move along the threaded rod 19, causing the cleaning wheel 15 to move and clean the filter plate 7. At the same time, the friction between the drive wheel 16 and the inner wall of the air curtain machine 1 causes the drive wheel 16 to rotate, driving the cleaning wheel 15 to rotate, increasing the friction between the bristles of the cleaning wheel 15 and the filter plate 7, resulting in a better cleaning effect on the filter plate 7. At the same time, the exhaust fan 18 starts, drawing the gas out of the collection chamber 17 and sucking the floating dust brushed off by the cleaning wheel 15 into the collection chamber 17. After cleaning is completed, the drive motor 20 reverses and puts the moving block 13 back into the placement groove 14.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A modular air curtain machine, comprising multiple horizontally arranged air curtain machines (1), characterized in that, Multiple air curtain machines (1) have channel steel (2) fixed to their top outer walls by bolts. Multiple connecting steel frames (3) are fixed to the opposite side of two channel steels (2) by bolts. Multiple U-shaped frames (4) are fixedly connected to the top outer walls of the two channel steels (2). Lifting bolts (5) are fixedly connected to the top outer walls of the U-shaped frames (4). The other end of the lifting bolts (5) is connected to the building wall.

2. The modular air curtain machine according to claim 1, characterized in that, The air curtain machine (1) includes a housing (6), an air inlet (8) is provided on the side wall of the housing (6), an air outlet (9) is provided on the outer wall of the bottom end of the housing (6), a fan body (11) is installed on the inner wall of the housing (6), and a fan motor (12) is provided on one side of the fan body (11).

3. The modular air curtain machine according to claim 2, characterized in that, A barrier net (10) is fixed to the inner wall of the bottom end of the housing (6), and the barrier net (10) is opposite to the air outlet (9). A filter plate (7) is fixed to the inner wall of the side of the housing (6), and the filter plate (7) is opposite to the air inlet (8).

4. The modular air curtain machine according to claim 3, characterized in that, The inner wall of the top of the housing (6) is provided with a groove, and a threaded rod (19) is rotatably connected to the inner wall of the groove. A drive motor (20) is provided at one end of the threaded rod (19), and the output shaft of the drive motor (20) is connected to the threaded rod (19). A moving block (13) is slidably connected to the inner wall of the housing (6), and the top of the moving block (13) is threadedly engaged with the threaded rod (19).

5. A modular air curtain machine according to claim 4, characterized in that, The housing (6) has a placement groove (14) on its side wall, and the placement groove (14) and the moving block (13) are on the same straight line.

6. A modular air curtain machine according to claim 4, characterized in that, A cleaning wheel (15) is rotatably connected to the inner wall of one side of the movable block (13), and the cleaning wheel (15) is in contact with the filter plate (7).

7. A modular air curtain machine according to claim 4, characterized in that, The movable block (13) is provided with a collection chamber (17) inside. One side of the collection chamber (17) is connected to the installation space of the cleaning wheel (15). The top of the rotating shaft of the cleaning wheel (15) is connected to a drive wheel (16), and the drive wheel (16) is in contact with the inner wall of the housing (6).

8. A modular air curtain machine according to claim 7, characterized in that, The bottom of the collection chamber (17) is provided with an exhaust fan (18), and the outer wall of the movable block (13) on one side of the exhaust fan (18) is provided with a through hole. The inner wall of the collection chamber (17) is provided with a sieve plate, and the sieve plate is located above the exhaust fan (18).

Citation Information

Patent Citations

  • Easily-mounted industrial anti-explosion air curtain machine

    CN215062741U