A CPVC pipe fitting size roundness visual detection equipment
By designing a visual inspection device for the roundness of CPVC pipe fittings with fixed support components and inspection components, the problem of traditional equipment being unable to fully scan and manually locate defects has been solved, achieving efficient and accurate pipe fitting inspection.
Patent Information
- Application Number
- CN202522452096.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-19
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-11-19
AI Technical Summary
Traditional inspection equipment cannot perform a full scan of the outer surface of CPVC pipe fittings, and existing visual inspection equipment requires manual location of defects, resulting in low inspection efficiency.
A visual inspection device for the dimensional roundness of CPVC pipe fittings, including a fixed support component and an inspection component, was designed. The device utilizes components such as hydraulic jacks, hydraulic telescopic rods, and servo motors to achieve stable fixing and all-round inspection of the pipe fittings, and combines an infrared detector and an inspection camera for automatic defect location.
It enables comprehensive inspection of the outer surface of CPVC pipe fittings, improving the stability, accuracy, and efficiency of the inspection, reducing manual intervention, and enhancing the comprehensiveness and precision of the inspection.
Smart Images

Figure CN224681514U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipe fitting inspection technology, and in particular to a visual inspection device for the size and roundness of CPVC pipe fittings. Background Technology
[0002] CPVC pipes, as a new type of pipe, possess excellent corrosion resistance and have been widely used in recent years in industries such as steel, metallurgy, petroleum, chemical, fertilizer, dye, pharmaceutical, power, environmental protection, and sewage treatment, making them an ideal alternative to metal corrosion protection materials. During the production of CPVC pipes, depending on the processing technology, various defects may appear on the outer surface, including pitting, line damage, dents, surface depressions, surface bulges, and unevenness. Therefore, the roundness and dimensional accuracy of the pipe fittings are usually inspected.
[0003] However, traditional inspection equipment can only inspect a portion of the pipe fittings and cannot perform a comprehensive scan of the entire outer surface, which may lead to missed defects. Furthermore, existing visual inspection equipment can only obtain data information of the pipe fittings after scanning the data. In the event of a defect, staff need to manually locate the defect based on the data, which is a cumbersome process and reduces inspection efficiency.
[0004] Therefore, we provide a visual inspection device for the dimensional roundness of CPVC pipe fittings to solve the above problems. Utility Model Content
[0005] To overcome the above deficiencies, this utility model provides a visual inspection device for the roundness of CPVC pipe fittings, aiming to solve the problems mentioned above.
[0006] To achieve the above objectives, this utility model provides the following technical solution: A visual inspection device for the roundness of CPVC pipe fittings includes a base frame. A testing platform is mounted on the top of the base frame. A support plate is welded to the left end of the testing platform. A fixed support assembly is mounted on the right side of the support plate. The fixed support assembly includes a connecting plate mounted on the right side of the support plate. A rotating disk is mounted on the right end of the connecting plate. A fixed connecting column is connected to the right end of the rotating disk. A hydraulic jack is mounted on the outside of the fixed connecting column. A fixed support plate is welded to the end of the hydraulic jack. A pipe fitting is to be inspected on the outside of the fixed support plate. An inspection component is mounted on the upper side of the testing platform. The inspection component includes an electrically controlled screw rotatably connected to the inside of the testing platform. A movable connecting block is connected to the upper side of the electrically controlled screw. A mounting bracket is mounted on the upper side of the movable connecting block. An inspection camera is mounted at the center of the top of the mounting bracket.
[0007] The rotating disk and the connecting disk are rotatably connected. A servo motor is installed on the left side of the support plate, and the output end of the servo motor passes through the connecting disk and is connected to the rotating disk. The fixed connecting column forms a rotating structure between the rotating disk and the connecting disk.
[0008] The fixed support plate is provided in three sets, and the three sets of fixed support plates are distributed at 120° equidistantly on the outside of the fixed connecting column. The fixed support plate is expanded on the outside of the fixed connecting column by hydraulic jacks. The surface of the fixed support plate is bonded with rubber pads, and the outside of the fixed support plate is tightly fitted with the inner wall of the testing pipe.
[0009] A support frame is welded to the right end of the testing platform. A hydraulic telescopic rod is installed on the inner side of the support frame. A rotating bearing is rotatably connected to the left end of the hydraulic telescopic rod. A movable connecting column is connected to the left end of the rotating bearing. The movable connecting column and the fixed connecting column are on the same horizontal axis.
[0010] A mounting plate is installed at the center of the testing platform, a hydraulic support rod is installed at the top of the mounting plate, a support plate is welded to the top of the hydraulic support rod, and a support roller is rotatably connected to the inner side of the support plate.
[0011] A drive motor is installed on the right side of the support side frame, and the output end of the drive motor is connected to the electric control screw. The movable connecting block is threadedly connected to the electric control screw. A mounting column is installed at the top of the movable connecting block, and a hydraulic lifting rod is provided at the top of the mounting column. A connecting frame is welded to the top of the hydraulic lifting rod. The mounting top frame and the connecting frame are welded together. The detection camera forms a movable structure with the detection pipe through the electric control screw.
[0012] A fixing plate is installed on the inner side of the connecting frame, and an infrared detector is installed inside the fixing plate. The infrared detector is located on both sides of the detection pipe.
[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. By setting up a fixed support assembly, the test tube is placed on the outside of the fixed connecting column. The fixed support plate is expanded by the hydraulic jack, thus pressing against the inner wall of the test tube to fix it. At the same time, the position of the movable connecting column can be adjusted by the extension and retraction of the hydraulic telescopic rod, so that it and the fixed connecting column can work together to provide better support for the test tube and ensure the stability of the test tube. The support plate is raised by the hydraulic support rod, so that the support roller contacts the bottom of the test tube. When the test tube rotates, the support roller rotates with it, providing additional support for the test tube, reducing the vibration of the test tube during rotation, and improving the stability and accuracy of the test.
[0014] 2. After the inspection pipe is fixed, the height of the inspection camera is adjusted by the hydraulic lifting rod to ensure that the camera can clearly capture the image of the pipe surface. Then, the drive motor is started to rotate the electric control screw, which moves the inspection camera along the axis of the pipe. Combined with the rotation of the pipe, the outer surface of the pipe is fully photographed, improving the comprehensiveness of the inspection. At the same time, the infrared detector moves along with the pipe and detects the spacing of the pipe. When there are defects on the surface of the pipe or changes in the roundness of the dimensions, the data detected by the infrared detector will change. This, together with the inspection camera, allows for quick location of defects in the pipe, improving the accuracy and efficiency of the inspection. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model.
[0016] Figure 2 This is a schematic diagram of the cooperative structure of the hydraulic telescopic rod, rotating bearing, and movable connecting column of this utility model.
[0017] Figure 3 This is a schematic diagram of the detection component structure of this utility model.
[0018] Figure 4 This is a partial structural diagram of the fixed support component of this utility model.
[0019] The diagram shows the following components: 1. Base frame; 2. Testing table; 3. Support plate; 4. Fixed support assembly; 401. Connecting plate; 402. Rotating plate; 403. Fixed connecting column; 404. Hydraulic jack; 405. Fixed support plate; 406. Support side frame; 407. Hydraulic telescopic rod; 408. Rotating bearing; 409. Movable connecting column; 410. Testing fitting; 411. Mounting support plate; 412. Hydraulic support rod; 413. Support plate; 414. Support roller; 5. Testing assembly; 501. Electrically controlled lead screw; 502. Moving connecting block; 503. Mounting column; 504. Hydraulic lifting rod; 505. Connecting frame; 506. Mounting top frame; 507. Testing camera; 508. Fixed plate; 509. Infrared detector. Detailed Implementation
[0020] Please see Figure 1-4As shown, this utility model provides a visual inspection device for the roundness of CPVC pipe fittings, including a base frame 1. A testing platform 2 is provided at the top of the base frame 1. A support plate 3 is welded to the left end of the testing platform 2. A fixed support assembly 4 is provided on the right side of the support plate 3. The fixed support assembly 4 includes a connecting plate 401 installed on the right side of the support plate 3. A rotating plate 402 is installed at the right end of the connecting plate 401. A fixed connecting column 403 is connected to the right end of the rotating plate 402. A hydraulic push rod 404 is installed on the outside of the fixed connecting column 403. A fixed support plate 405 is welded to the end of the hydraulic push rod 404. A testing pipe fitting 410 is provided on the outside of the fixed support plate 405. A testing assembly 5 is installed on the upper side of the testing platform 2. The testing assembly 5 includes an electric control screw 501 rotatably connected to the inside of the testing platform 2. A movable connecting block 502 is connected to the upper side of the electric control screw 501. A mounting top frame 506 is provided on the upper side of the movable connecting block 502. A testing camera 507 is installed at the center of the top of the mounting top frame 506.
[0021] Furthermore, three sets of fixed support plates 405 are provided, and the three sets of fixed support plates 405 are distributed at 120° equidistantly on the outside of the fixed connecting column 403. The fixed support plates 405 are expanded on the outside of the fixed connecting column 403 by hydraulic push rods 404. Rubber pads are adhered to the surface of the fixed support plates 405, and the outside of the fixed support plates 405 are tightly fitted with the inner wall of the test pipe 410. During testing, the test pipe 410 is placed on the outside of the fixed connecting column 403, and then the fixed support plates 405 are expanded by the hydraulic push rods 404, thereby pressing against the inner wall of the test pipe 410 to fix the test pipe 410 and ensure the stability of the roundness dimension testing.
[0022] Furthermore, a support side frame 406 is welded to the right end of the testing table 2. A hydraulic telescopic rod 407 is installed on the inner side of the support side frame 406. A rotating bearing 408 is rotatably connected to the left end of the hydraulic telescopic rod 407. A movable connecting column 409 is connected to the left end of the rotating bearing 408. The movable connecting column 409 and the fixed connecting column 403 are on the same horizontal axis. By extending and retracting the hydraulic telescopic rod 407, the position of the movable connecting column 409 can be adjusted so that it and the fixed connecting column 403 can provide better support for the testing tube 410. When the testing tube 410 is placed on the fixed connecting column 403, the hydraulic telescopic rod 407 pushes the movable connecting column 409 into the testing tube 410 to lock and fix the other end of the testing tube 410. This can prevent the testing tube 410 from shaking or shifting during the rotation testing process and ensure the accuracy of the test results.
[0023] Furthermore, a drive motor is installed on the right side of the support side frame 406, and the output end of the drive motor is connected to the electric control screw 501. The movable connecting block 502 is threadedly connected to the electric control screw 501. A mounting column 503 is installed at the top of the movable connecting block 502, and a hydraulic lifting rod 504 is provided at the top of the mounting column 503. A connecting frame 505 is welded to the top of the hydraulic lifting rod 504. The mounting top frame 506 and the connecting frame 505 are welded together. The detection camera 507 forms a movable structure with the detection pipe 410 through the electric control screw 501. After 410 is fixed, the height of the inspection camera 507 can be adjusted by the hydraulic lifting rod 504 according to the size of the inspection pipe 410 to ensure that the inspection camera 507 can clearly capture the image of the surface of the inspection pipe 410. Then, the drive motor is started to drive the electric control screw 501 to rotate, so that the moving connecting block 502 moves on the electric control screw 501, thereby driving the inspection camera 507 to move along the axial direction of the inspection pipe 410. Combined with the rotation of the inspection pipe 410, the outer surface of the inspection pipe 410 can be fully photographed, improving the comprehensiveness of the inspection.
[0024] Furthermore, the rotating disk 402 and the connecting disk 401 are rotatably connected. A servo motor is installed on the left side of the support plate 3, and the output end of the servo motor passes through the connecting disk 401 and is connected to the rotating disk 402. The fixed connecting column 403 forms a rotating structure through the rotating disk 402 and the connecting disk 401. The servo motor drives the rotating disk 402 to rotate, thereby driving the fixed connecting column 403 to rotate, so that the detection tube 410 rotates, which facilitates the detection of different positions on the surface of the detection tube 410 and improves the comprehensiveness of the detection.
[0025] Furthermore, a mounting plate 411 is installed at the center of the testing table 2. A hydraulic support rod 412 is installed at the top of the mounting plate 411. A support plate 413 is welded to the top of the hydraulic support rod 412. A support roller 414 is rotatably connected to the inner side of the support plate 413. After the testing tube 410 is fixed, the hydraulic support rod 412 drives the support plate 413 to rise, so that the support roller 414 contacts the bottom of the testing tube 410. When the testing tube 410 rotates, the support roller 414 rotates accordingly, providing additional support for the testing tube 410, reducing the vibration of the testing tube 410 during rotation, and further improving the stability and accuracy of the testing.
[0026] Furthermore, a fixing plate 508 is installed on the inner side of the connecting frame 505, and an infrared detector 509 is installed inside the fixing plate 508. The infrared detector 509 is located on both sides of the inspection pipe 410. During the movement of the mounting top frame 506, the infrared detector 509 will move along with it. The infrared detector 509 detects the spacing of the inspection pipe 410. When there are defects on the surface of the inspection pipe 410 or changes in the roundness of the dimensions, the data detected by the infrared detector 509 will change. This, together with the inspection camera 507, allows for quick location of defects in the inspection pipe 410, improving the accuracy and efficiency of the inspection.
[0027] During testing, the testing tube 410 is placed outside the fixed connecting column 403. Then, the fixed support plate 405 is expanded by the hydraulic push rod 404, thereby pressing against the inner wall of the testing tube 410 to fix the testing tube 410. Next, the hydraulic telescopic rod 407 is activated to push the movable connecting column 409 into the other end of the testing tube 410 to further clamp and fix the testing tube 410. After that, the support plate 413 is raised by the hydraulic support rod 412, so that the support roller 414 contacts the bottom of the testing tube 410 to provide additional support for the testing tube 410.
[0028] After the inspection pipe 410 is properly fixed, the height of the inspection camera 507 is adjusted by operating the hydraulic lifting rod 504 according to the actual size of the inspection pipe 410, so that the inspection camera 507 can clearly capture the image of the surface of the inspection pipe 410. Then, the drive motor is started, which drives the electric control screw 501 to rotate, so that the moving connecting block 502 moves along the electric control screw 501, thereby driving the inspection camera 507 to move along the axial direction of the inspection pipe 410. At the same time, the servo motor on the left side of the support plate 3 is started, which drives the rotating disk 402 to rotate, thereby causing the inspection pipe 410 to rotate. With the cooperation of the rotation of the inspection pipe 410 and the axial movement of the inspection camera 507, the inspection camera 507 can capture a full image of the outer surface of the inspection pipe 410.
[0029] During the movement of the mounting frame 506, the infrared detector 509 installed in the fixed plate 508 moves along with it. The infrared detector 509 continuously detects the distance between itself and the pipe fitting 410. Once there is a defect on the surface of the pipe fitting 410 or a change in its size and roundness, the data detected by the infrared detector 509 will change. This, in conjunction with the detection camera 507, quickly locates the defect position of the pipe fitting 410. After the inspection is completed, the hydraulic top rod 404, the hydraulic telescopic rod 407, and the hydraulic support rod 412 are retracted in sequence to remove the inspected pipe fitting. This completes the use of a visual inspection device for the size and roundness of CPVC pipe fittings.
Claims
1. A visual inspection device for the dimensional roundness of CPVC pipe fittings, characterized in that: The system includes a base frame (1), a testing platform (2) at the top of the base frame (1), a support plate (3) welded to the left end of the testing platform (2), a fixed support assembly (4) on the right side of the support plate (3), the fixed support assembly (4) including a connecting plate (401) installed on the right side of the support plate (3), a rotating plate (402) installed on the right end of the connecting plate (401), a fixed connecting column (403) connected to the right end of the rotating plate (402), and a hydraulic jack (404) installed on the outside of the fixed connecting column (403). A fixed support plate (405) is welded to the end of the top rod (404). A detection pipe (410) is provided on the outside of the fixed support plate (405). A detection assembly (5) is installed on the upper side of the detection table (2). The detection assembly (5) includes an electric control screw (501) rotatably connected to the inside of the detection table (2). A movable connecting block (502) is connected to the upper side of the electric control screw (501). A mounting bracket (506) is provided on the upper side of the movable connecting block (502). A detection camera (507) is installed at the top center of the mounting bracket (506).
2. The visual inspection equipment for the roundness of CPVC pipe fittings according to claim 1, characterized in that, The rotating disk (402) and the connecting disk (401) are rotatably connected. A servo motor is installed on the left side of the support plate (3), and the output end of the servo motor passes through the connecting disk (401) and is connected to the rotating disk (402). The fixed connecting column (403) forms a rotating structure between the rotating disk (402) and the connecting disk (401).
3. The visual inspection equipment for the roundness of CPVC pipe fittings according to claim 1, characterized in that, The fixed support plate (405) is provided in three sets, and the three sets of fixed support plates (405) are distributed at 120° equidistantly on the outside of the fixed connecting column (403). The fixed support plate (405) is expanded on the outside of the fixed connecting column (403) by a hydraulic push rod (404). The surface of the fixed support plate (405) is bonded with a rubber pad, and the outside of the fixed support plate (405) is tightly fitted with the inner wall of the detection pipe (410).
4. The visual inspection equipment for the roundness of CPVC pipe fittings according to claim 1, characterized in that, The right end of the testing platform (2) is welded with a support side frame (406), and a hydraulic telescopic rod (407) is installed on the inner side of the support side frame (406). The left end of the hydraulic telescopic rod (407) is rotatably connected to a rotating bearing (408), and the left end of the rotating bearing (408) is connected to a movable connecting column (409). The movable connecting column (409) and the fixed connecting column (403) are on the same horizontal axis.
5. The visual inspection device for the roundness of CPVC pipe fittings according to claim 1, characterized in that, The center of the testing platform (2) is equipped with a mounting plate (411), the top of the mounting plate (411) is equipped with a hydraulic support rod (412), the top of the hydraulic support rod (412) is welded with a support plate (413), and the inner side of the support plate (413) is rotatably connected with a support roller (414).
6. The visual inspection device for the roundness of CPVC pipe fittings according to claim 4, characterized in that, A drive motor is installed on the right side of the support side frame (406), and the output end of the drive motor is connected to the electric control screw (501). The movable connecting block (502) is threadedly connected to the electric control screw (501). A mounting column (503) is installed on the top of the movable connecting block (502). A hydraulic lifting rod (504) is provided on the top of the mounting column (503). A connecting frame (505) is welded to the top of the hydraulic lifting rod (504). The mounting top frame (506) and the connecting frame (505) are welded together. The detection camera (507) forms a movable structure with the detection pipe (410) through the electric control screw (501).
7. The visual inspection device for the roundness of CPVC pipe fittings according to claim 6, characterized in that, A fixing plate (508) is installed on the inner side of the connecting frame (505), and an infrared detector (509) is installed inside the fixing plate (508). The infrared detector (509) is located on both sides of the detection pipe (410).