Ultrasonic phased array testing device for polyethylene pipe heat fusion joints

Abstract

The utility model relates to nondestructive testing technical field discloses polyethylene pipeline hot melt joint ultrasonic phased array detection device, including the mounting ring, the outer wall detachable connection of mounting ring has two detection mechanisms, the outer wall of mounting ring is installed with the dismounting mechanism, the inside of mounting ring installs a plurality of mounting rods, wherein one detection mechanism includes the rotating ring, the outer wall rotation connection of rotating ring in one side of mounting ring, the inner wall rotation connection of rotating ring has the gear ring, wherein the outer wall fixed connection of one mounting rod has the rotating motor, a plurality of mounting rods one side all rotationally connected with a plurality of gear, the drive end fixed connection of rotating motor is in one of gear outside. In the utility model, change the device's circle diameter to adapt to the circle diameter size of different polyethylene pipelines, improve the adaptability of the device while avoiding the need for splicing and reducing the detection error caused by the probe.

Description

Technical Field

[0001] This utility model relates to the field of non-destructive testing technology, and in particular to an ultrasonic phased array testing device for polyethylene pipe hot melt joints. Background Technology

[0002] Polyethylene pipe heat fusion joints are formed by heating and melting the pipe joints together to create a tightly bonded whole, achieving a sealed connection for the pipeline system. This ensures that the joint strength is similar to that of the pipe material, preventing cracking due to weak connections and improving the overall pressure resistance of the pipeline. It also achieves a complete seal, preventing fluid leakage, making it particularly suitable for water supply and gas transportation applications. Furthermore, it is easy to operate, adapted to the characteristics of polyethylene pipes, reduces the use of connecting parts, and lowers maintenance costs. Finally, it enhances system stability, extends pipeline lifespan, and ensures safe and efficient fluid transportation.

[0003] The ultrasonic phased array testing device for pipeline thermofusion joints generates a controllable sound beam through an array probe. Software adjusts the beam angle and focus position to scan the interior of the thermofusion joint. The reflected signals are processed to generate real-time images, enabling the identification of defects such as incomplete fusion and porosity. It is commonly used for quality spot checks of thermofusion joints in municipal water supply and gas pipeline networks, joint inspection during the construction of long-distance oil and gas pipelines, post-installation acceptance of polyethylene pipelines in the chemical industry, and joint condition assessment before the repair of aging pipelines. It is particularly suitable for scenarios requiring efficient and accurate testing.

[0004] In existing technologies, ultrasonic phased array testing devices, when inspecting polyethylene pipes of different sizes, require additional probes to be spliced ​​according to the pipe size, increasing the overall coil diameter or decreasing the coil diameter by removing probes. This process consumes extra time, and the equipment needs to be readjusted after reinstallation. Compared to devices with freely adjustable coil diameters, the preparation time is longer, reducing overall testing efficiency. Furthermore, insufficient installation precision during probe splicing can lead to uneven probe array distribution, affecting sound wave transmission and reception, and causing deviations in the test results. Therefore, this ultrasonic phased array testing device for polyethylene pipe thermofusion joints is proposed to solve these problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an ultrasonic phased array testing device for polyethylene pipe hot-melt joints. It aims to improve the existing technology, which, when testing polyethylene pipes of different sizes, requires additional splicing probes to increase the overall diameter of the device or reduces the diameter by reducing the number of probes, thus affecting work efficiency and testing accuracy.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: An ultrasonic phased array testing device for polyethylene pipe hot melt joints includes a mounting ring, on the outer wall of which two testing mechanisms are detachably connected, a disassembly mechanism is installed on the outer wall of the mounting ring, and multiple mounting rods are installed on the inner side of the mounting ring. One of the detection mechanisms includes a rotating ring, the outer wall of which is rotatably connected to one side of the mounting ring, and a gear ring rotatably connected to the inner wall of the rotating ring. A rotating motor is fixedly connected to the outer wall of one of the mounting rods. Multiple gears are rotatably connected to one side of each of the mounting rods. The drive end of the rotating motor is fixedly connected to the outside of one of the gears. One of the detection mechanisms is equipped with a detection component, and another detection mechanism is equipped with a moving component. The inner side of the gear ring is meshed with the outer side of the multiple gears. Multiple racks are slidably connected inside the rotating ring. As a further description of the above technical solution: The moving component includes a drive motor, the outer wall of which is fixedly connected to the outside of the rack, and a roller is fixedly connected to the drive end of the drive motor. Both ends of the roller are rotatably connected to the inside of the rack. As a further description of the above technical solution: The detection assembly includes a fixing rod, the outer wall of which is fixedly connected to the outside of the rack, a detection probe is fixedly connected to one end of the fixing rod, and a controller is fixedly connected to the top of the detection probe; As a further description of the above technical solution: The detection probe is fixedly connected to both sides with connecting rods, and sliding rods are slidably connected to both sides of the connecting rods. One side of each of the multiple racks is meshed with the outside of the multiple gears. As a further description of the above technical solution: The controller has two wires fixedly connected to its inner wall, and the other end of each wire is fixedly connected to another detection component. The inner wall of each detection probe is rotatably connected to two rollers. As a further description of the above technical solution: The disassembly mechanism includes an electronic slider, the inner wall of which is slidably connected to one side of the mounting ring, and a guide rail is fixedly connected to the outer wall of the mounting ring. The inner wall of the electronic slider is slidably connected to the inner wall of the guide rail. As a further description of the above technical solution: The inner wall of the electronic slider is detachably connected to a T-shaped block. One side of the T-shaped block is fixedly connected to the outer wall of the rotating ring. The inner wall of the electronic slider is threadedly connected to a fixing screw, and the outer wall of the fixing screw is threadedly connected to the inner wall of the T-shaped block. As a further description of the above technical solution: The T-shaped block has a threaded hole inside, and the external thread of the fixing screw is connected to the inside of the threaded hole. The outer wall of the mounting ring is detachably connected to a fixing block by a screw, and the outer wall of the fixing block is fixedly connected to the outside of another rotating ring.

[0007] This utility model has the following beneficial effects: 1. In this utility model, by starting the rotating motor, the starting of the rotating motor drives the gear to rotate, and the rotation of the gear drives the gear ring to rotate on the inner wall of the rotating ring. At this time, the rotation of the gear ring drives multiple gears to rotate simultaneously. The simultaneous rotation of multiple gears causes the rack to slide on the inner wall of the rotating ring. At this time, the rack drives multiple fixed rods to tighten towards the inner ring. Through the gear driving the gear ring to rotate, the rack changes the inner ring diameter, thereby adapting to the ring diameter of different polyethylene pipes. This improves the adaptability of the device, avoids the need for splicing, and reduces the detection error caused by the probe.

[0008] 2. In this utility model, when it is necessary to disassemble the detection mechanisms on both sides of the mounting ring, the fixing screws are rotated. The rotation of the fixing screws causes the fixing screws to disengage from the inside of the electronic slider and the T-block, so that the T-block is no longer fixed inside the electronic slider, thereby realizing the removal of the T-block from the inside of the electronic slider. When it is necessary to remove another detection mechanism, the screws inside the fixing block are rotated down to remove the other detection mechanism from the other side of the mounting ring, which facilitates maintenance and replacement. Attached Figure Description

[0009] Figure 1 This is a three-dimensional schematic diagram of the ultrasonic phased array detection device for polyethylene pipe hot melt joints proposed in this utility model. Figure 2 This is a schematic diagram of the rack structure of the ultrasonic phased array detection device for polyethylene pipe hot melt joints proposed in this utility model. Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the toothed ring structure of the ultrasonic phased array detection device for polyethylene pipe hot melt joints proposed in this utility model; Figure 5 for Figure 4 Enlarged view of point B in the middle.

[0010] Legend: 1. Mounting ring; 2. Detection mechanism; 21. Rotating ring; 22. Rack; 23. Rotating motor; 24. Gear ring; 25. Moving component; 251. Drive motor; 252. Roller one; 26. Detection component; 261. Fixing rod; 262. Controller; 263. Wire; 264. Connecting rod; 265. Sliding rod; 266. Detection probe; 267. Roller two; 27. Gear; 3. Mounting rod; 4. Disassembly mechanism; 41. Electronic slider; 42. Guide rail; 43. T-block; 44. Threaded hole; 45. Fixing screw; 46. Fixing block. Detailed Implementation

[0011] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0012] Reference Figures 1 to 3 This utility model provides an embodiment of an ultrasonic phased array testing device for polyethylene pipe hot-melt joints, including a mounting ring 1. Two testing mechanisms 2 are detachably connected to the outer wall of the mounting ring 1. The two testing mechanisms 2 are used to perform pipe testing and movement functions to complete omnidirectional testing. A disassembly mechanism 4 is installed on the outer wall of the mounting ring 1, which facilitates the removal of the testing mechanisms 2 from the mounting ring 1 for maintenance and replacement. Multiple mounting rods 3 are installed on the inner side of the mounting ring 1, providing mounting positions for the rotating motor 23 and gear 27 to ensure their stable operation. One of the testing mechanisms 2 includes a rotating ring 21, which can rotate on the mounting ring 1, thereby driving the testing component 26 and the moving component 25 to rotate around the pipe. The outer wall of the rotating ring 21 is rotatably connected to one side of the mounting ring 1, allowing the rotating ring 21 to rotate relative to the mounting ring 1 to achieve circumferential testing.

[0013] A gear ring 24 is rotatably connected to the inner wall of the rotating ring 21. The rotation of the gear ring 24 can drive multiple gears 27 to rotate synchronously. A rotating motor 23 is fixedly connected to the outer wall of one of the mounting rods 3. The rotating motor 23 provides power for the rotation of the gears 27. Multiple gears 27 are rotatably connected to one side of each of the mounting rods 3. The rotation of the gears 27 can drive the rack 22 to slide to change the inner diameter. The drive end of the rotating motor 23 is fixedly connected to the outside of one of the gears 27, so that the rotating motor 23 can directly drive the gear 27 to rotate and thus drive other components to move. One of the detection mechanisms 2 is equipped with a detection component 26, which is used to detect the pipe heat fusion joint. The other detection mechanism 2 is equipped with a moving component 25, which is used to drive the device to move axially in the pipe.

[0014] The inner side of the gear ring 24 is meshed with the outer sides of multiple gears 27, ensuring that the rotation of the gear ring 24 synchronously drives the rotation of all gears 27, guaranteeing consistent motion. Multiple racks 22 are slidably connected inside the rotating ring 21. The sliding of the racks 22 can change the inner diameter to accommodate different pipe diameters. The moving component 25 includes a drive motor 251, which provides power for the rotation of the roller 252. The outer wall of the drive motor 251 is fixedly connected to the outside of the racks 22, allowing the drive motor 251 to move with the racks 252. 2. Synchronous movement: The drive end of the drive motor 251 is fixedly connected to a roller 252. The rotation of the roller 252 can drive the device to move along the axial direction of the pipe. Both ends of the roller 252 are rotatably connected to the inner side of the rack 22 to ensure stable rotation of the roller 252. The detection component 26 includes a fixing rod 261. The fixing rod 261 connects the rack 22 and the detection probe 266 for fixing. The outer wall of the fixing rod 261 is fixedly connected to the outside of the rack 22, so that the fixing rod 261 moves synchronously with the rack 22.

[0015] A detection probe 266 is fixedly connected to one end of a fixed rod 261. The detection probe 266 is used to perform ultrasonic phased array detection. A controller 262 is fixedly connected to the top of the detection probe 266. The controller 262 is used to monitor and upload detection data. Connecting rods 264 are fixedly connected to both sides of the detection probe 266. The connecting rods 264 provide mounting support for sliding rods 265. Sliding rods 265 are slidably connected to both sides of the connecting rods 264. The sliding rods 265 can be adjusted to adapt to different detection requirements. One side of each of the multiple racks 22 is connected to multiple... The gears 27 are externally meshed, so that the rotation of the gears 27 can drive the rack 22 to slide and achieve diameter adjustment. Two wires 263 are fixedly connected to the inner wall of the controller 262. The wires 263 are used to transmit and integrate the data of each controller 262. The other end of the two wires 263 is fixedly connected to another detection component 26 to realize data communication between the two detection components 26. Two rollers 267 are rotatably connected to the inner wall of the detection probe 266. The rollers 267 facilitate the rotation of the rotating ring 21 outside the polyethylene pipe and reduce friction. Reference Figure 4 and Figure 5The disassembly mechanism 4 includes an electronic slider 41, which can drive the rotating ring 21 to rotate on the outer wall of the pipe. The inner wall of the electronic slider 41 is slidably connected to one side of the mounting ring 1, so that the electronic slider 41 can move along the mounting ring 1. The outer wall of the mounting ring 1 is fixedly connected to a guide rail 42, which provides guidance and support for the sliding of the electronic slider 41. The inner wall of the electronic slider 41 is slidably connected to the inner wall of the guide rail 42 to ensure the stability of the sliding of the electronic slider 41. The inner wall of the electronic slider 41 is detachably connected to a T-block 43, which connects the rotating ring 21 and the electronic slider 41. One side of the T-block 43 is fixedly connected to the outer wall of the rotating ring 21, so that the rotating ring 21 can be connected to the electronic slider 41 along with the T-block 43.

[0016] The inner wall of the electronic slider 41 is threaded with a fixing screw 45, which is used to fix the T-block 43 and the electronic slider 41. The outer wall of the fixing screw 45 is threaded to the inner wall of the T-block 43, and the threaded connection achieves a stable fixation. The T-block 43 has a threaded hole 44 inside, which provides a connection position for the fixing screw 45. The outer thread of the fixing screw 45 is connected to the inside of the threaded hole 44 to ensure that the fixing screw 45 can be effectively fixed. The outer wall of the mounting ring 1 is detachably connected with a fixing block 46 by a screw. The fixing block 46 is used to connect another rotating ring 21 and the mounting ring 1. The outer wall of the fixing block 46 is fixedly connected to the outside of the other rotating ring 21, so that the other rotating ring 21 is connected to the mounting ring 1 through the fixing block 46 and is easy to disassemble.

[0017] Working principle: When the mounting ring 1 with the detection mechanism 2 needs to be installed on the polyethylene pipe, the mounting ring 1 is placed on the heat fusion joint of the polyethylene pipe to be tested. At this time, the rotating motor 23 is started, which drives the gear 27 to rotate. The rotation of the gear 27 drives the toothed ring 24 to rotate on the inner wall of the rotating ring 21. At this time, the rotation of the toothed ring 24 drives multiple gears 27 to rotate simultaneously. The simultaneous rotation of multiple gears 27 causes the rack 22 to slide on the inner wall of the rotating ring 21. At this time, the rack 22 drives multiple fixing rods 261 to tighten inward. The movement of the fixing rods 261 causes the roller 267 at the bottom of the detection probe 266 to contact the outside of the pipe. At this time, the electronic slider 41 is started, which drives the rotating ring 21 to rotate on the outer wall of the pipe. The roller 267 at the bottom of the detection probe 266 facilitates the rotation of the rotating ring 21 on the outside of the polyethylene pipe, thereby facilitating the detection probe 266 to detect the heat fusion joint of the polyethylene pipe.

[0018] The controller 262 is used to monitor and upload data, and the wire 263 facilitates the transmission and integration of data between the various controllers 262. When axial movement is required outside the pipe, the drive motor 251 starts and drives the roller 252 to rotate. The rotation of the roller 252 drives the detection probe 266 to move axially outside the pipe, thereby completing the all-round detection of the pipe. The gear 27 drives the gear ring 24 to rotate, so that the rack 22 changes the inner ring diameter, thereby adapting to the ring diameter of different polyethylene pipes and improving the adaptability of the device.

[0019] When it is necessary to remove the detection mechanisms 2 on both sides of the mounting ring 1, the fixing screws 45 are rotated. The rotation of the fixing screws 45 causes the fixing screws 45 to disengage from the inside of the electronic slider 41 and the T-block 43, so that the T-block 43 is no longer fixed inside the electronic slider 41, thereby removing the T-block 43 from the inside of the electronic slider 41. When it is necessary to remove another detection mechanism 2, the screw inside the fixing block 46 is rotated to remove the other detection mechanism 2 from the other side of the mounting ring 1, which facilitates maintenance and replacement.

[0020] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An ultrasonic phased array testing device for polyethylene pipe hot melt joints, comprising a mounting ring (1), characterized in that: The outer wall of the mounting ring (1) is detachably connected to two detection mechanisms (2), the outer wall of the mounting ring (1) is equipped with a disassembly mechanism (4), and the inner side of the mounting ring (1) is equipped with multiple mounting rods (3). One of the detection mechanisms (2) includes a rotating ring (21), the outer wall of which is rotatably connected to one side of the mounting ring (1), and a toothed ring (24) rotatably connected to the inner wall of the rotating ring (21). A rotating motor (23) is fixedly connected to the outer wall of one of the mounting rods (3). Multiple gears (27) are rotatably connected to one side of each of the mounting rods (3). The drive end of the rotating motor (23) is fixedly connected to the outside of one of the gears (27). One of the detection mechanisms (2) is equipped with a detection component (26), and another detection mechanism (2) is equipped with a moving component (25). The inner side of the toothed ring (24) is meshed with the outer side of the multiple gears (27). Multiple racks (22) are slidably connected inside the rotating ring (21).

2. The ultrasonic phased array testing device for polyethylene pipe hot-melt joints according to claim 1, characterized in that: The moving component (25) includes a drive motor (251), the outer wall of which is fixedly connected to the outside of the rack (22), and a roller (252) is fixedly connected to the drive end of the drive motor (251). Both ends of the roller (252) are rotatably connected to the inside of the rack (22).

3. The ultrasonic phased array testing device for polyethylene pipe hot-melt joints according to claim 2, characterized in that: The detection component (26) includes a fixing rod (261), the outer wall of which is fixedly connected to the outside of the rack (22), a detection probe (266) is fixedly connected to one end of the fixing rod (261), and a controller (262) is fixedly connected to the top of the detection probe (266).

4. The ultrasonic phased array testing device for polyethylene pipe hot melt joints according to claim 3, characterized in that: The detection probe (266) is fixedly connected to both sides by a connecting rod (264), and the connecting rod (264) is slidably connected to both sides by a sliding rod (265). One side of each of the multiple racks (22) is meshed with the outside of the multiple gears (27).

5. The ultrasonic phased array testing device for polyethylene pipe hot-melt joints according to claim 4, characterized in that: The inner wall of the controller (262) is fixedly connected to two wires (263), and the other end of the two wires (263) is fixedly connected to another detection component (26). The inner wall of the detection probe (266) is rotatably connected to two rollers (267).

6. The ultrasonic phased array testing device for polyethylene pipe hot melt joints according to claim 1, characterized in that: The disassembly mechanism (4) includes an electronic slider (41), the inner wall of which is slidably connected to one side of the mounting ring (1), and the outer wall of the mounting ring (1) is fixedly connected to a guide rail (42), and the inner wall of the electronic slider (41) is slidably connected to the inner wall of the guide rail (42).

7. The ultrasonic phased array testing device for polyethylene pipe hot-melt joints according to claim 6, characterized in that: The inner wall of the electronic slider (41) is detachably connected to a T-shaped block (43). One side of the T-shaped block (43) is fixedly connected to the outer wall of the rotating ring (21). The inner wall of the electronic slider (41) is threadedly connected to a fixing screw (45). The outer wall of the fixing screw (45) is threadedly connected to the inner wall of the T-shaped block (43).

8. The ultrasonic phased array testing device for polyethylene pipe hot melt joints according to claim 7, characterized in that: The T-shaped block (43) has a threaded hole (44) inside. The external thread of the fixing screw (45) is connected to the inside of the threaded hole (44). The outer wall of the mounting ring (1) is detachably connected to a fixing block (46) by a screw. The outer wall of the fixing block (46) is fixedly connected to the outside of another rotating ring (21).

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