Device for rapidly detecting air leakage of air pipe

Abstract

The utility model provides a device for quickly detecting air leakage of an air pipe, which relates to the technical field of air-conditioning ventilation engineering and comprises an air-conditioning air pipe, a shell and a support frame, a working box is fixedly mounted on the side surface of the shell, a photosensitive sensor is arranged on the side surface of the working box, and an alarm is arranged on the surface of the working box. The light sensing sensor in the working box is used for detecting the illumination change in the air pipe, once air leakage is detected, the alarm can give an alarm immediately, and therefore maintenance personnel can rapidly position the air leakage point. And when the motor B is started to drive the two-way lead screw to rotate, due to the fact that the two-way lead screw is in threaded connection with the movable plate, the air leakage point can be rapidly located. The movable plates move oppositely or oppositely, so that the position of the supporting frame is adjusted, the device can adapt to air conditioner air pipes with different diameters, the use flexibility and the maintenance efficiency of the device are improved, cost is reduced, and the standardization level of maintenance work is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning and ventilation engineering, in particular to a device for quickly detecting air leakage in an air duct. Background Art

[0002] The integrity of air conditioning ducts is crucial in air conditioning and ventilation systems. However, long-term use or improper installation can lead to leaks in air conditioning ducts, causing energy loss and reduced system efficiency. Existing technologies rely on manual inspection of duct joints, which is fatigue-prone and inefficient. Simple tools struggle to accurately locate small leaks, especially in long ducts. These methods suffer from low detection efficiency and inaccurate positioning, making it difficult to meet the efficient and precise maintenance needs of modern air conditioning systems. Existing detection equipment may not be suitable for air conditioning ducts of varying sizes and shapes. Due to the wide variety of air conditioning duct sizes, from household to commercial and industrial use, the diameters and shapes of ducts vary. Consequently, it may be necessary to replace detection equipment one by one. Adjusting and maintaining equipment to accommodate different air conditioning ducts is time-consuming and labor-intensive, significantly reducing work efficiency and necessitating improvements. Utility Model Content

[0003] The purpose of the utility model is to solve the problem in the prior art that the detection efficiency is low and it is not suitable for air-conditioning ducts of different sizes and shapes, and to propose a device for quickly detecting air leakage in air ducts.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a device for quickly detecting air leakage in an air duct, comprising an air-conditioning duct, a shell and a support frame, a working box is fixedly installed on the side of the shell, a photosensitive sensor is provided on the side of the working box, an alarm is provided on the surface of the working box, a roller is rotatably connected to the inside of the support frame, a track is transmission-connected to the surface of the roller, a pulley is fixedly installed on the surface of the roller, a belt is transmission-connected to the surface of the pulley, a motor A is fixedly installed on the side of the support frame, a connecting rod is rotatably connected to the side of the support frame, a movable plate is slidingly connected to the inside of the shell, a sliding block is fixedly connected to the side of the movable plate, a motor B is fixedly installed on the side of the shell, a bidirectional screw is rotatably connected to the inside of the shell, and a bearing is fixedly installed on the inside of the shell.

[0005] Preferably, the number of the rollers and pulleys is two groups, the output end of the motor A is fixedly connected to one end of the roller, and the connecting rod is rotationally connected to the movable plate.

[0006] Preferably, the sliding block is slidably connected to the housing, and the output end of the motor B is fixedly connected to one end of the bidirectional screw rod.

[0007] Preferably, the bidirectional screw is threadedly connected to the movable plate, and the bidirectional screw is rotationally connected to the bearing.

[0008] Preferably, a guide sleeve is fixedly installed on the side of the shell, a guide rod is slidably connected to the inside of the guide sleeve, one end of the guide rod is fixedly connected to a limiting block, a spring is provided inside the guide sleeve, the other end of the guide rod is fixedly connected to a U-shaped plate, and the inner side of the U-shaped plate is rotatably connected to a guide wheel.

[0009] Preferably, the limit block is slidably connected to the guide sleeve.

[0010] Preferably, one end of the spring is fixedly connected to the side surface of the limiting block, and the other end of the spring is fixedly connected to the inner side of the limiting block.

[0011] Compared with the prior art, the advantages and positive effects of the present invention are:

[0012] 1. In the present invention, the light changes in the air duct are detected by the photosensitive sensor in the working box. Once air leakage is detected, the alarm will immediately sound an alarm, so that the maintenance personnel can quickly locate the air leakage point. When the motor B is started, it drives the bidirectional screw to rotate. Since the bidirectional screw is threadedly connected to the movable plate, the movable plate moves toward or in the opposite direction, thereby adjusting the position of the support frame, and then the device can adapt to air-conditioning ducts of different diameters. This not only improves the flexibility of use and maintenance efficiency of the equipment, but also helps to reduce costs and improve the standardization level of maintenance work.

[0013] 2. In the present invention, the guide system is composed of a guide sleeve, a guide rod, a limit block, a spring, a U-shaped plate and a guide wheel. The guide wheel is in direct contact with the wall of the air-conditioning duct, acting as a guiding and supporting device. The elasticity of the spring ensures that the guide wheel can always fit the inner wall of the air-conditioning duct. Even if the air-conditioning duct is slightly deformed or uneven, stable contact can be maintained through the expansion and contraction of the spring. The limit block and the guide sleeve limit the moving range of the guide rod, thereby ensuring the accuracy of the detection path. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of a device for quickly detecting air leakage in an air duct proposed by the utility model;

[0015] Figure 2 This is a schematic diagram of the shell structure of a device for quickly detecting air duct leakage proposed by the utility model;

[0016] Figure 3 This is a partial structural diagram of the roller, track and motor A of a device for quickly detecting air leakage in an air duct proposed by the utility model;

[0017] Figure 4 This is a cross-sectional view of a device for quickly detecting air duct leakage proposed in the utility model.

[0018] Figure 5 The utility model provides a partial cross-sectional view of a device for quickly detecting air leakage in an air duct.

[0019] Legend: 1. Air conditioning duct; 2. Housing; 3. Support frame; 4. Working box; 5. Photosensitive sensor; 6. Alarm; 7. Roller; 8. Track; 9. Pulley; 10. Belt; 11. Motor A; 12. Connecting rod; 13. Moving plate; 14. Sliding block; 15. Motor B; 16. Bidirectional screw; 17. Bearing; 18. Guide sleeve; 19. Guide rod; 20. Limit block; 21. Spring; 22. U-shaped plate; 23. Guide wheel. DETAILED DESCRIPTION

[0020] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Example 1: Figure 1-Figure 5 As shown, the utility model provides a technical solution: a device for quickly detecting air leakage in an air duct, comprising an air-conditioning air duct 1, a shell 2 and a support frame 3, a working box 4 is fixedly installed on the side of the shell 2, a light sensor 5 is provided on the side of the working box 4, an alarm 6 is provided on the surface of the working box 4, the internal rotation of the support frame 3 is connected to a roller 7, the surface of the roller 7 is connected to a crawler 8 for transmission, a pulley 9 is fixedly installed on the surface of the roller 7, the surface of the pulley 9 is connected to a belt 10 for transmission, a motor A11 is fixedly installed on the side of the support frame 3, a connecting rod 12 is rotatably connected to the side of the support frame 3, and a movable The movable plate 13 has a sliding block 14 fixedly connected to the side of the movable plate 13, a motor B15 is fixedly installed on the side of the shell 2, a bidirectional screw rod 16 is rotatably connected to the inside of the shell 2, a bearing 17 is fixedly installed on the inner side of the shell 2, and there are two groups of rollers 7 and pulleys 9. The output end of the motor A11 is fixedly connected to one end of the roller 7, the connecting rod 12 is rotatably connected to the movable plate 13, the sliding block 14 is slidably connected to the shell 2, the output end of the motor B15 is fixedly connected to one end of the bidirectional screw rod 16, the bidirectional screw rod 16 is threadedly connected to the movable plate 13, and the bidirectional screw rod 16 is rotatably connected to the bearing 17.

[0023] In this embodiment, the light changes in the air duct are detected by the photosensitive sensor 5 in the working box 4. Once air leakage is detected, the alarm 6 will immediately sound an alarm, so that the maintenance personnel can quickly locate the air leakage point. When the motor B15 is started, it drives the bidirectional screw rod 16 to rotate. Since the bidirectional screw rod 16 is threadedly connected to the movable plate 13, the movable plate 13 moves in the same direction or opposite direction. At this time, the movable plate 13 will drive the connecting rod 12 to move, and the movement of the connecting rod 12 will cause the upper and lower positions of the support frame 3 to change. At the same time, the sliding block 14 will slide inside the shell 2, so that the movable plate 13 is smoother in the movement process. One end of the bidirectional screw rod 16 will rotate inside the bearing 17, so that the bidirectional screw rod 16 rotates more smoothly, thereby realizing the adjustment of the position of the support frame 3, and then the device can adapt to air-conditioning ducts 1 of different diameters. This not only improves the use flexibility and maintenance efficiency of the equipment, but also helps to reduce costs and improve the standardization level of maintenance work.

[0024] Example 2: Figure 1-Figure 5 As shown, a guide sleeve 18 is fixedly installed on the side of the shell 2, and a guide rod 19 is slidably connected inside the guide sleeve 18. One end of the guide rod 19 is fixedly connected to a limit block 20. A spring 21 is provided inside the guide sleeve 18. The other end of the guide rod 19 is fixedly connected to a U-shaped plate 22. The inner side of the U-shaped plate 22 is rotatably connected to a guide wheel 23. The limit block 20 is slidably connected to the guide sleeve 18, one end of the spring 21 is fixedly connected to the side of the limit block 20, and the other end of the spring 21 is fixedly connected to the inner side of the limit block 20.

[0025] In this embodiment, the guide system is composed of a guide sleeve 18, a guide rod 19, a limit block 20, a spring 21, a U-shaped plate 22 and a guide wheel 23. The guide wheel 23 is in direct contact with the wall of the air-conditioning duct 1, and acts as a guiding and supporting device. The elasticity of the spring 21 ensures that the guide wheel 23 can always fit the inner wall of the air-conditioning duct 1. The limit block 20 and the guide sleeve 18 limit the moving range of the guide rod 19 to prevent excessive deviation, thereby ensuring stable contact between the guide wheel 23 and the duct wall. Through the coordinated work of these components, not only is the stable movement of the device in the air-conditioning duct 1 guaranteed, but the deviation of the device due to external force or its own weight is also effectively prevented, thereby ensuring the accuracy of the detection path, thereby improving the detection efficiency and the reliability of the results.

[0026] The working principle of this embodiment is as follows: when in use, first put the device into the air duct 1 of the air conditioner. During detection, the light sensor 5 installed on the side of the working box 4 is used to detect the light changes in the air duct. When the light sensor 5 detects that the light intensity is abnormal, the alarm 6 will immediately sound an alarm, so that the maintenance personnel can quickly locate the air leakage point. When the maintenance personnel start the motor B15, it drives the bidirectional screw rod 16 to rotate. Since the bidirectional screw rod 16 is threadedly connected to the movable plate 13, the movable plate 13 moves in the opposite direction or oppositely. At this time, the movable plate 13 will drive the connecting rod 12 to move, and the movement of the connecting rod 12 will change the upper and lower positions of the support frame 3. At the same time, the sliding block 14 will slide inside the shell 2, so that the movable plate 13 will move more smoothly during the movement process. One end of the bidirectional screw rod 16 will rotate inside the bearing 17, so that the bidirectional screw rod 16 rotates more smoothly, thereby realizing the adjustment of the position of the support frame 3. This enables the device to adapt to air-conditioning ducts 1 of different diameters, which not only improves the flexibility of use and maintenance efficiency of the equipment, but also helps to reduce costs and improve the standardization level of maintenance work. When the device moves inside the air-conditioning duct 1, the guide system composed of the guide sleeve 18, guide rod 19, limit block 20, spring 21, U-shaped plate 22 and guide wheel 23, the guide wheel 23 directly contacts the wall of the air-conditioning duct 1, and plays the role of guiding and supporting the device. The elasticity of the spring 21 ensures that the guide wheel 23 can always fit the inner wall of the air-conditioning duct 1. The limit block 20 and guide sleeve 18 limit the moving range of the guide rod 19 to prevent excessive deviation and ensure stable contact between the guide wheel 23 and the duct wall. Through the coordinated work of these components, not only the stable movement of the device in the air-conditioning duct 1 is guaranteed, but also the deviation of the device due to external force or its own weight is effectively prevented, ensuring the accuracy of the detection path, thereby improving the detection efficiency and the reliability of the results.

[0027] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A device for quickly detecting air leakage in an air duct, comprising an air conditioning air duct (1), a housing (2) and a support frame (3), characterized in that: A working box (4) is fixedly installed on the side of the shell (2), a light sensor (5) is provided on the side of the working box (4), an alarm (6) is provided on the surface of the working box (4), a roller (7) is rotatably connected inside the support frame (3), a crawler (8) is transmission-connected on the surface of the roller (7), a pulley (9) is fixedly installed on the surface of the roller (7), a belt (10) is transmission-connected on the surface of the pulley (9), a motor A (11) is fixedly installed on the side of the support frame (3), a connecting rod (12) is rotatably connected on the side of the support frame (3), a moving plate (13) is slidably connected on the inside of the shell (2), a sliding block (14) is fixedly connected on the side of the moving plate (13), a motor B (15) is fixedly installed on the side of the shell (2), a bidirectional screw rod (16) is rotatably connected inside the shell (2), and a bearing (17) is fixedly installed on the inside of the shell (2).

2. The device for quickly detecting air duct leakage according to claim 1, characterized in that: The rollers (7) and pulleys (9) are provided in two groups. The output end of the motor A (11) is fixedly connected to one end of the roller (7). The connecting rod (12) is rotationally connected to the movable plate (13).

3. The device for quickly detecting air duct leakage according to claim 1, characterized in that: The sliding block (14) is slidably connected to the housing (2), and the output end of the motor B (15) is fixedly connected to one end of the bidirectional screw rod (16).

4. The device for quickly detecting air duct leakage according to claim 1, characterized in that: The bidirectional screw rod (16) is threadedly connected to the movable plate (13), and the bidirectional screw rod (16) is rotationally connected to the bearing (17).

5. The device for quickly detecting air duct leakage according to claim 1, characterized in that: A guide sleeve (18) is fixedly mounted on the side of the housing (2), a guide rod (19) is slidably connected to the interior of the guide sleeve (18), one end of the guide rod (19) is fixedly connected to a limit block (20), a spring (21) is provided inside the guide sleeve (18), the other end of the guide rod (19) is fixedly connected to a U-shaped plate (22), and the inner side of the U-shaped plate (22) is rotatably connected to a guide wheel (23).

6. The device for quickly detecting air duct leakage according to claim 5, characterized in that: The limiting block (20) is slidably connected to the guide sleeve (18).

7. The device for quickly detecting air duct leakage according to claim 5, characterized in that: One end of the spring (21) is fixedly connected to the side surface of the limiting block (20), and the other end of the spring (21) is fixedly connected to the inner side of the limiting block (20).

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