Air conditioner air pipe sealing performance detection equipment

Abstract

The utility model is suitable for the technical field of pipeline detection, and provides an air-conditioning air pipe tightness detection device, when the tightness of a pipeline is detected, sealing discs at the end parts of two moving mechanisms are placed at the two ends of the pipeline, and an inflation assembly inflates a sealing rubber ring, so that the sealing rubber ring can be in contact with the inner wall of the pipeline, and the tightness of the pipeline is detected. According to the pipeline tightness detection device, the pipeline is sealed, the two ends of the pipeline are sealed, then an external pressurization system is started, gas can be charged into the pipeline through a gas charging valve port in a sealing disc, whether the pipeline is tight or not is judged by observing the change of a pointer on a gas-pressure meter, and compared with a traditional detection mode, the pipeline tightness detection device has the advantage of being convenient to detect; the two sealing discs can be driven to move in the pipeline, the non-tight position of the pipeline can be gradually judged by repeatedly inflating and deflating the sealing rubber rings and repeatedly inflating and pressurizing the interior of the pipeline, and the detection mode can be suitable for detection of air pipes of different specifications and has the advantage of being wider in practicability.

Description

Technical Field

[0001] This utility model relates to the field of pipeline inspection technology, specifically an air conditioning duct sealing inspection device. Background Technology

[0002] In modern buildings, air conditioning systems are crucial for ensuring a comfortable indoor environment. Air conditioning ducts, as an important component of these systems, directly impact the system's operating efficiency, energy consumption, and indoor air quality through their sealing. Sealing issues in air conditioning ducts can lead to leaks of hot or cold air, reducing the cooling or heating efficiency of the system, increasing energy consumption, and potentially causing a decline in indoor air quality, the growth of bacteria and mold, and other harmful substances, thus affecting the health of users.

[0003] Currently, there are some related devices for testing the sealing performance of air conditioning ducts, such as the polyurethane foam rubber insulated air conditioning duct sealing performance testing device disclosed in CN 217845557 U. This device uses a blower to fill the duct with air, uses a pressure gauge to observe the sealing condition of the duct in real time, and sprays water droplets in the airflow. This method can more intuitively identify specific leak locations, greatly improving the convenience and functionality of duct sealing testing, and providing certain technical support for ensuring the sealing performance of air conditioning ducts.

[0004] However, existing testing equipment of this type has obvious shortcomings: its application range is relatively narrow, and it can only be applied to air conditioning ducts of a certain specification range. It cannot flexibly test air conditioning ducts of different diameters and lengths. This means that when dealing with diverse air conditioning ducts, multiple different testing equipment are required, which not only increases the testing cost but also reduces the testing efficiency. It cannot meet the needs of fast and accurate testing in actual engineering. Therefore, developing a sealing testing equipment that can adapt to air conditioning ducts of various specifications is of great practical significance. Utility Model Content

[0005] The purpose of this invention is to provide an air conditioning duct sealing test device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An air conditioning duct sealing test device includes a pair of moving mechanisms and a sealing disc installed at the end of the moving mechanisms. One of the sealing discs is equipped with an inflation valve port, which is connected to an external pressurization system via an inflation pipe. The pressurization system is equipped with a pressure gauge for detecting pressure changes. A sealing rubber ring is also fixedly installed on the side wall of the sealing disc. The sealing rubber ring has a hollow structure and is connected to a first annular pipe on the side of the sealing disc via a connecting pipe. The first annular pipe is connected to an inflation assembly installed inside the moving mechanism via a flexible hose.

[0008] As a further embodiment of this utility model: the moving mechanism includes a frame and a pair of mounting plates symmetrically installed within the frame. The mounting plates are equipped with moving wheels, and one of the mounting plates is equipped with a drive module for driving the moving wheels to rotate. The inflation component is disposed on the other mounting plate.

[0009] As a further embodiment of this utility model: the two mounting plates are movably arranged, and a driving assembly for driving the relative movement of the two mounting plates is also provided within the frame. The driving assembly includes a bidirectional lead screw, a push-pull rod, a movable plate, and a connecting column. The bidirectional lead screw is rotatably arranged within the frame and driven by a servo motor provided within the frame. Movable plates are symmetrically arranged on both sides of the bidirectional lead screw within the frame. The movable plates are connected to the mounting plates through multiple columns. Threaded bushings are symmetrically installed on the two threaded portions of the bidirectional lead screw. The threaded bushings are connected to the movable plates through the push-pull rod. One end of the push-pull rod is hinged to the threaded bushing, and the other end is hinged to the movable plate.

[0010] As a further embodiment of this utility model: multiple positioning rods are symmetrically fixedly arranged on both sides of the movable plate within the frame, and the movable plate is movably mounted on the positioning rods.

[0011] As a further embodiment of this utility model: a water tank is also installed on the moving mechanism, and a pump body is installed inside the water tank. The output end of the pump body is connected to the second annular pipe on the sealing plate through a hose. Multiple atomizing nozzles connected to the second annular pipe are also installed on the sealing plate. The multiple atomizing nozzles are inclined and arranged in a ring array.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention, by incorporating a moving mechanism, sealing discs, inflation valves, sealing rubber rings, a first annular pipe, and an inflation assembly, allows for the testing of pipe tightness. By placing the sealing discs at the ends of the two moving mechanisms at both ends of the pipe, the inflation assembly inflates the sealing rubber rings, bringing them into contact with the inner wall of the pipe and sealing both ends. Subsequently, an external pressurization system is activated, allowing gas to be injected into the pipe through the inflation valves on the sealing discs. The tightness of the pipe is determined by observing the changes in the pressure gauge pointer. Compared to traditional testing methods, this method offers the advantage of convenient testing. Furthermore, the moving mechanism allows the two sealing discs to move within the pipe. By repeatedly inflating and deflating the sealing rubber rings and repeatedly pressurizing the pipe, locations of leaks can be gradually identified. This testing method is applicable to the testing of ducts of different specifications, offering broader practicality. Attached Figure Description

[0014] Figure 1 A schematic diagram of the overall structure of an air conditioning duct sealing test device;

[0015] Figure 2 for Figure 1 Internal structure diagram of China Mobile;

[0016] Figure 3 for Figure 1 A magnified 3D view of the central sealing disc;

[0017] Figure 4 for Figure 3 Another magnified view

[0018] In the diagram: 1. Moving mechanism; 2. Sealing disc; 3. Inflation valve port; 4. Inflation pipe; 5. Sealing rubber ring; 6. Connecting pipe; 7. First annular pipe; 8. Inflation assembly; 9. Frame; 10. Mounting plate; 11. Moving wheel; 12. Drive module; 13. Two-way lead screw; 14. Threaded bushing; 15. Movable plate; 16. Push-pull rod; 17. Connecting column; 18. Positioning rod; 19. Servo motor; 20. Pressurization system; 21. Pressure gauge; 22. Second annular pipe; 23. Atomizing nozzle; 24. Water tank. Detailed Implementation

[0019] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0020] Example 1

[0021] Please see Figure 1-4An air conditioning duct sealing test device includes a pair of moving mechanisms 1 and a sealing disc 2 installed at the end of the moving mechanism 1. One of the sealing discs 2 has an inflation valve 3 installed inside. The inflation valve 3 is connected to an external pressurization system 20 via an inflation pipe 4. The pressurization system 20 is equipped with a pressure gauge 21 for detecting pressure changes. A sealing rubber ring 5 is also fixedly installed on the side wall of the sealing disc 2. The sealing rubber ring 5 has a hollow structure and is connected to a first annular pipe 7 on the side of the sealing disc 2 via a connecting pipe 6. The first annular pipe 7 is connected to an inflation assembly 8 installed inside the moving mechanism 1 via a flexible hose. By configuring the moving mechanism 1, sealing disc 2, inflation valve 3, sealing rubber ring 5, first annular pipe 7, and inflation assembly 8, the device can test the duct tightness by... By placing the sealing discs 2 at the ends of the two moving mechanisms 1 at both ends of the pipe, the inflation assembly 8 inflates the sealing rubber rings 5, allowing them to contact the inner wall of the pipe and seal both ends. Then, the external pressurization system is activated, and gas is injected into the pipe through the inflation valve 3 on the sealing discs 2. The pipe's tightness is determined by observing the pointer change on the pressure gauge 21. Compared with traditional detection methods, this method is more convenient. In addition, the moving mechanism 1 can drive the two sealing discs 2 to move inside the pipe. By repeatedly inflating and deflating the sealing rubber rings 5 ​​and repeatedly pressurizing the pipe, the location of any leaks can be gradually identified. This detection method is applicable to the detection of ducts of different specifications and has a wider range of practical advantages.

[0022] The moving mechanism 1 includes a frame 9 and a pair of mounting discs 10 symmetrically installed within the frame 9. Each mounting disc 10 is equipped with a moving wheel 11. One of the mounting discs 10 is equipped with a drive module 12 that drives the moving wheel 11 to rotate. The inflation assembly 8 is disposed on the other mounting disc 10.

[0023] It should be noted that the pressurization system 20, the inflation component 8 and the drive module 12 in this embodiment are all existing modular components, so they will not be described in detail here.

[0024] In addition, to ensure that the moving mechanism 1 can move stably inside the pipe while keeping the sealing disc 2 centered inside the pipe, the two mounting discs 10 are movably arranged in this embodiment. The frame 9 also includes a drive assembly for driving the relative movement of the two mounting discs 10. This drive assembly includes a bidirectional lead screw 13, a push-pull rod 16, a movable plate 15, and a connecting column 17. The bidirectional lead screw 13 is rotatably arranged within the frame 9 and driven by a servo motor 19 within the frame 9. Movable plates 15 are symmetrically arranged on both sides of the bidirectional lead screw 13 within the frame 9. The movable plates 15 are connected to the mounting discs 10 via multiple columns. Threaded bushings 14 are symmetrically installed on the two threaded portions of the bidirectional lead screw 13. The bushing 14 is connected to the movable plate 15 via the push-pull rod 16. One end of the push-pull rod 16 is hinged to the threaded bushing 14, and the other end is hinged to the movable plate 15. Specifically, during the rotation of the bidirectional screw 13, the two threaded bushings 14 on the bidirectional screw 13 move away from each other. Under the transmission of the push-pull rod 16, the two movable plates 15 can move away from each other, and the moving wheels 11 on the two mounting plates 10 can make stable contact with the upper and lower sides of the inner wall of the pipe. This ensures that the moving mechanism 1 can move stably in the pipe. Furthermore, due to the relative movement of the two mounting plates 10, the sealing plate 2 at the end of the frame 9 is always in the center position of the pipe. When the sealing rubber ring 5 on the sealing plate 2 is inflated, it can ensure the sealing of the pipe.

[0025] Furthermore, within the frame 9, multiple positioning rods 18 are symmetrically fixed on both sides of the movable plate 15. The movable plate 15 is movably mounted on the positioning rods 18. The positioning rods 18 not only improve the stability of the relative movement of the two movable plates 15, but also improve the operational stability of the moving mechanism 1.

[0026] Example 2

[0027] This embodiment is an improvement on embodiment 1, specifically as follows:

[0028] Please see Figure 2-4The moving mechanism 1 is also equipped with a water tank 24 containing soapy water and a pump. The output end of the pump is connected to the second annular pipe 22 on the sealing disc 2 via a hose. The sealing disc 2 is also equipped with multiple atomizing nozzles 23 connected to the second annular pipe 22. The multiple atomizing nozzles 23 are inclined and arranged in a ring array. When the moving mechanism 1 drives the sealing disc 2 to change position and performs secondary or multiple inspections on the pipeline, the pump in the water tank 24 operates, which can pump the soapy water in the water tank 24 into the second annular pipe 22 and spray it onto the inner wall of the pipeline through the multiple atomizing nozzles 23. When the soapy water comes into contact with the inner wall of the pipeline that is not sealed tightly, the soapy water can seep out of the pipeline, which facilitates the visual judgment of the location of the pipeline not being sealed by the inspectors and further improves the practicality of the device.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An air conditioning duct sealing performance testing device, characterized in that, The utility model provides a kind of inflatable sealing device, including a pair of moving mechanism (1) and the sealing disc (2) installed at the end of moving mechanism (1), one sealing disc (2) is equipped with inflation valve (3), inflation valve (3) is connected with external pressurizing system (20) by inflation pipe (4), pressurizing system (20) is equipped with barometer (21) for detecting air pressure change, the side wall of sealing disc (2) is further fixedly provided with sealing rubber ring (5), the sealing rubber ring (5) is hollow structure, sealing rubber ring (5) is connected with the first annular pipe (7) of the side of sealing disc (2) by connecting pipe (6), and the first annular pipe (7) is connected with the inflation assembly (8) arranged in moving mechanism (1) by hose.

2. The air conditioner duct sealability detection apparatus according to claim 1, characterized by The moving mechanism (1) includes a frame (9) and a pair of mounting discs (10) symmetrically mounted in the frame (9), the mounting discs (10) are mounted with moving wheels (11), one of the mounting discs (10) is mounted with a drive module (12) for driving the moving wheels (11) to rotate, and the inflation assembly (8) is arranged on the other mounting disc (10).

3. The air conditioner duct sealability detection apparatus according to claim 2, characterized by The two mounting discs (10) are movably arranged, and the frame (9) is further provided with a drive assembly for driving the two mounting discs (10) to move relative to each other, the drive assembly includes a bidirectional screw (13), a push-pull rod (16), a movable plate (15), and a connecting column (17), the bidirectional screw (13) is rotatably arranged in the frame (9) and is driven by a servo motor (19) arranged in the frame (9), the movable plates (15) are symmetrically movably arranged on both sides of the bidirectional screw (13) in the frame (9), the movable plates (15) are connected with the mounting discs (10) by a plurality of vertical columns, the threaded sleeves (14) are symmetrically mounted on both threaded portions of the bidirectional screw (13), the threaded sleeves (14) are connected with the movable plates (15) by the push-pull rod (16), one end of the push-pull rod (16) is hinged to the threaded sleeve (14), and the other end of the push-pull rod (16) is hinged to the movable plate (15).

4. The air conditioner duct sealability detection apparatus according to claim 3, characterized by A plurality of positioning rods (18) are symmetrically fixedly arranged on both sides of the movable plate (15) in the frame (9), and the movable plate (15) is movably mounted on the positioning rods (18).

5. The air conditioner duct sealability detection apparatus according to claim 1, wherein The moving mechanism (1) is further provided with a water tank (24), a pump body is arranged in the water tank (24), an output end of the pump body is connected with a second annular pipe (22) arranged on the sealing disc (2) by a hose, a plurality of atomizing nozzles (23) connected with the second annular pipe (22) are arranged on the sealing disc (2), the plurality of atomizing nozzles (23) are arranged in an inclined manner and in a ring array.

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