Corrosion resistance testing equipment for water supply pipe

Abstract

The invention belongs to the technical field of pipeline detection, and particularly relates to water supply pipe corrosion resistance testing equipment which comprises a rack and a driving assembly, and the driving assembly is arranged on the rack and used for driving a water supply pipe to transversely move; the rotating assembly is arranged on the driving assembly and used for driving a water supply pipe to rotate; the fixing assembly is arranged on the rotating assembly and used for expanding and fixing the water supply pipe; the detection assembly is fixedly mounted right above the rack and is used for detecting the corrosion resistance of the water supply pipe; and the control assembly is fixedly installed at the upper end of the rack, and the driving assembly, the rotating assembly, the fixing assembly and the detection assembly are all electrically connected with the control assembly.

Description

Technical Field

[0001] This invention belongs to the field of pipeline testing technology, specifically a corrosion resistance testing device for water supply pipes. Background Technology

[0002] Water supply pipes are a crucial component of water supply systems, and their corrosion resistance directly impacts the safety and lifespan of the water supply. During the production process, rigorous corrosion resistance testing is required to ensure product quality.

[0003] Currently, existing water supply pipe corrosion resistance testing equipment has several shortcomings. For example, the fixing of the water supply pipe is not secure enough, and it is prone to shaking during the testing process, affecting the accuracy of the test results. Moreover, most of them can only be used with water supply pipes of specific specifications. When testing water supply pipes of different specifications, it is often necessary to change the corresponding fixing device or testing equipment, which is cumbersome, increases testing costs, and reduces testing efficiency. To address these issues, we propose a new water supply pipe corrosion resistance testing device. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a corrosion resistance testing device for water supply pipes.

[0005] The objective of this invention can be achieved through the following technical solutions: A corrosion resistance testing device for water supply pipes, comprising: frame, A drive assembly, which is mounted on the frame, is used to drive the water supply pipe to move laterally. A rotating assembly, which is mounted on the drive assembly for driving the water supply pipe to rotate; A fixing component, which is mounted on the rotating component, is used to expand and fix the water supply pipe; The testing component is fixedly installed on the top of the frame for testing the corrosion resistance of water supply pipes; The control system is fixedly mounted on the upper end of the frame, and the drive component, rotation component, fixing component, and detection component are all electrically connected to the control component.

[0006] Furthermore, the drive assembly includes a first drive motor, a first threaded rod, a moving block, a driving gear, a driven gear, and a chain. There are two first threaded rods, which are rotatably mounted at both ends of the frame. The first drive motor is fixedly mounted on the side end of the frame. A driving gear is fixedly mounted on the output shaft of the first drive motor. A driven gear is fixedly mounted on the side end of each first threaded rod. A chain is installed between the driving gear and the driven gear. Both the driving gear and the driven gear are meshed with the chain. A moving block is threadedly mounted on the side end of each first threaded rod. The rotating assembly is fixedly mounted between the two moving blocks.

[0007] Furthermore, the rotating assembly includes a mounting plate, a second drive motor, and a support cylinder. The mounting plate is fixedly installed between two moving blocks. One end of the support cylinder is installed inside the mounting plate and is rotatably connected to the mounting plate. The second drive motor is fixedly installed on the side of the mounting plate and its output end is fixedly connected to the support cylinder. The support cylinder has a cavity inside, and the fixing assembly is installed inside the cavity of the support cylinder.

[0008] Furthermore, the water supply pipe is sleeved on the side end of the support cylinder.

[0009] Furthermore, the fixing assembly includes a third drive motor, a second threaded rod, a movable plate, an expansion plate, a support rod, and a connecting assembly; the third drive motor is fixedly installed inside the support cylinder, the second threaded rod is rotatably installed inside the support platform, the output end of the third drive motor is fixedly connected to one end of the second threaded rod, the movable plate is threadedly installed on the side end of the second threaded rod, the side end of the support cylinder has multiple recesses, each recess has an expansion plate installed thereon, one end of the expansion plate is rotatably connected to the inner wall of the support cylinder through the connecting assembly, one end of the support rod is rotatably connected to the side end of the movable plate through the connecting assembly, and the other end of the support rod is rotatably connected to the side wall of the expansion plate through the connecting assembly.

[0010] Furthermore, the connecting assembly includes a first connector and a second connector, which are rotatably connected.

[0011] Furthermore, the detection assembly includes a fixed frame, a hydraulic telescopic rod, and a detection probe. The fixed frame is fixedly installed on the frame, the hydraulic telescopic rod is fixedly installed directly below the fixed frame, the telescopic end of the hydraulic telescopic rod is vertically downward, and the detection probe is fixedly installed at the lower end of the hydraulic telescopic rod.

[0012] Furthermore, the control component includes a controller and a display screen. The controller is fixedly mounted on the upper end of the frame, and the display screen is mounted on the controller. The first drive motor, the second drive motor, the third drive motor, the hydraulic telescopic rod, and the detection probe are all electrically connected to the controller.

[0013] The explanations of the nouns, conjunctions, or adjectives used in the above technical solutions are as follows: Fixed connection: refers to a connection in which parts or components are fixed in place and there is no relative movement. It is divided into two types: detachable connection and non-detachable connection.

[0014] (1) Detachable connection: The components are fixed together using screws, splines, wedges, etc. This type of connection can be disassembled during maintenance without damaging the parts. However, the specifications of the connecting parts used must be correct (such as the length of the bolts, keys, wedges) and properly tightened.

[0015] (2) Non-removable connections: These mainly refer to welding, riveting, and tenon joints. Since disassembly requires forging, sawing, or oxyacetylene cutting for repair or replacement, the parts generally cannot be reused. At the same time, attention should be paid to process quality, technical inspection, and remedial measures (such as correction, polishing, etc.) when making connections.

[0016] The beneficial effects of this invention are: 1. This invention, by setting a fixing component, includes an expansion plate that can expand. The degree of expansion can be adjusted according to the inner diameter of water supply pipes of different specifications, so as to achieve stable expansion and fixing of water supply pipes of different specifications. There is no need to replace the fixing device for water supply pipes of different specifications, which greatly improves the versatility and flexibility of the equipment.

[0017] 2. The drive component can move the water supply pipe laterally, and the rotation component can rotate the water supply pipe. Combined with the detection component, this enables comprehensive corrosion resistance testing of the water supply pipe, improving testing efficiency. Furthermore, because the fixing component can adapt to different specifications of water supply pipes, this comprehensive testing can cover more types of water supply pipes, further enhancing the practicality of the testing.

[0018] 3. All components are electrically connected to the control component, enabling automated control via the controller. This simplifies operation and reduces manual labor. Furthermore, for testing water supply pipes of different specifications, only the expansion degree of the fixing component needs to be adjusted through the control component, simplifying the operation process and saving preparation time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall device according to an embodiment of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall device according to an embodiment of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the structure of the driving component according to an embodiment of the present invention; Figure 4 This is a structural schematic diagram of the support cylinder and fixing assembly according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the fixing component according to an embodiment of the present invention; Figure 6 This is a cross-sectional view of the fixing component according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of the first connector in an embodiment of the present invention; Figure 8 This is a schematic diagram of the structure of the second connector in an embodiment of the present invention.

[0021] Reference numerals: 1. Frame; 2. Drive assembly; 3. Rotating assembly; 4. Fixing assembly; 5. Detection assembly; 6. Control assembly; 7. Water supply pipe; 8. First drive motor; 9. First threaded rod; 10. Moving block; 11. Driving gear; 12. Driven gear; 13. Chain; 14. Mounting plate; 15. Second drive motor; 16. Support cylinder; 17. Third drive motor; 18. Second threaded rod; 19. Moving plate; 20. Expansion plate; 21. Support rod; 22. Connecting assembly; 23. Notch; 24. First connector; 25. Second connector; 26. Fixing frame; 27. Hydraulic telescopic rod; 28. Detection probe; 29. ​​Controller; 30. Display screen. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] A corrosion resistance testing device for water supply pipes, such as Figures 1-8 As shown, it includes: Rack 1, Drive component 2, which is mounted on the frame 1 for driving the water supply pipe 7 to move laterally; Rotating component 3, the rotating component 3 is mounted on the driving component 2 for driving the water supply pipe 7 to rotate; Fixing component 4, which is mounted on rotating component 3 for expanding and fixing water supply pipe 7; The detection component 5 is fixedly installed on the top of the frame 1 for corrosion resistance testing of the water supply pipe 7; Control component 6, the control system is fixedly installed on the upper end of the frame 1, and the drive component 2, rotation component 3, fixing component 4 and detection component 5 are all electrically connected to the control component 6.

[0024] In a preferred embodiment of the present invention, the drive assembly 2 includes a first drive motor 8, a first threaded rod 9, a moving block 10, a drive gear 11, a driven gear 12, and a chain 13. There are two first threaded rods 9, which are rotatably mounted at both ends of the frame 1. The first drive motor 8 is fixedly mounted on the side end of the frame 1. The drive gear 11 is fixedly mounted on the output shaft of the first drive motor 8. A driven gear 12 is fixedly mounted on the side end of each first threaded rod 9. A chain 13 is installed between the drive gear 11 and the driven gear 12. The drive gear 11 and the driven gear 12 are both meshed with the chain 13. A moving block 10 is threadedly mounted on the side end of each first threaded rod 9. The rotating assembly 3 is fixedly mounted between two moving blocks 10. The working principle of the drive component 2 is as follows: the first drive motor 8 is started, the drive gear 11 rotates, and the driven gear 12 rotates through the chain 13, thereby causing the two first threaded rods 9 to rotate synchronously. The moving block 10 moves on the first threaded rods 9, thereby driving the rotating component 3 and the water supply pipe 7 to move laterally, so that the detection component 5 can detect different positions of the water supply pipe 7.

[0025] In a preferred embodiment of the present invention, the rotating assembly 3 includes a mounting plate 14, a second drive motor 15, and a support cylinder 16. The mounting plate 14 is fixedly installed between two moving blocks 10. One end of the support cylinder 16 is installed inside the mounting plate 14 and is rotatably connected to the mounting plate 14. The second drive motor 15 is fixedly installed on the side of the mounting plate 14, and its output end is fixedly connected to the support cylinder 16. The support cylinder 16 has a cavity inside, and the fixing assembly 4 is installed inside the cavity of the support cylinder 16. The working principle of the rotating assembly 3 is as follows: the second drive motor 15 operates, driving the support cylinder 16 to rotate. Since the water supply pipe 7 is sleeved on the side of the support cylinder 16 and fixed by the fixing assembly 4, the water supply pipe 7 will rotate together with the support cylinder 16, enabling the detection assembly 5 to perform comprehensive detection of the circumference of the water supply pipe 7.

[0026] In a preferred embodiment of the present invention, the water supply pipe 7 is sleeved on the side end of the support cylinder 16. Sleeving the water supply pipe 7 on the side end of the support cylinder 16 facilitates its installation and fixation.

[0027] In a preferred embodiment of the present invention, the fixing component 4 includes a third drive motor 17, a second threaded rod 18, a movable plate 19, an expansion plate 20, a support rod 21, and a connecting component 22. The third drive motor 17 is fixedly installed inside the support cylinder 16, the second threaded rod 18 is rotatably installed inside the support platform, the output end of the third drive motor 17 is fixedly connected to one end of the second threaded rod 18, the movable plate 19 is threadedly installed on the side end of the second threaded rod 18, the side end of the support cylinder 16 has multiple recesses 23, and an expansion plate 20 is installed at each recess 23. One end of the expansion plate 20 is rotatably connected to the inner wall of the support cylinder 16 through the connecting component 22, one end of the support rod 21 is rotatably connected to the side end of the movable plate 19 through the connecting component 22, and the other end of the support rod 21 is rotatably connected to the side wall of the expansion plate 20 through the connecting component 22. The working principle of the fixing component 4 is as follows: the third drive motor 17 starts, drives the second threaded rod 18 to rotate, the moving plate 19 moves on the second threaded rod 18, and pushes the expansion plate 20 to unfold through the support rod 21, thereby expanding and fixing the water supply pipe 7 sleeved on the support cylinder 16. The fixing effect is stable, preventing the water supply pipe 7 from shaking during the testing process.

[0028] In a preferred embodiment of the present invention, the connecting assembly 22 includes a first connecting member 24 and a second connecting member 25, which are rotatably connected. The connecting assembly 22 ensures the flexible rotation of components such as the expansion plate 20 and the support rod 21.

[0029] In a preferred embodiment of the present invention, the detection assembly 5 includes a fixing frame 26, a hydraulic telescopic rod 27, and a detection probe 28. The fixing frame 26 is fixedly mounted on the frame 1, and the hydraulic telescopic rod 27 is fixedly mounted directly below the fixing frame 26, with its telescopic end pointing vertically downwards. The detection probe 28 is fixedly mounted on the lower end of the hydraulic telescopic rod 27. The hydraulic telescopic rod 27 can adjust the height of the detection probe 28, allowing it to fully contact the surface of the water supply pipe 7, thus improving detection accuracy. The detection probe 28 can be an electrochemical sensor probe, which can accurately sense changes in electrochemical signals caused by corrosion on the surface of the water supply pipe 7.

[0030] The principle of corrosion resistance testing is based on electrochemical corrosion. Most corrosion occurring in the water supply pipe 7 during use is electrochemical corrosion, essentially a redox reaction on the metal surface that results in electron transfer. When corrosion occurs on the surface of the water supply pipe 7, localized micro-batteries are formed, generating changes in current and potential in the corroded area. The electrochemical sensor in the detection probe 28 captures these changes in current and potential and converts them into electrical signals, which are then transmitted to the control system. During the rotation of the water supply pipe 7, the detection probe 28 continuously monitors the electrochemical signals at different locations on the pipe surface. The control system analyzes these signals and, by comparing them with standard data, determines the degree of corrosion at each location on the water supply pipe 7. For example, if an increase in current density and a decrease in potential are detected at a certain location, it indicates that there may be severe corrosion at that location. Simultaneously, by combining the rotation state of the water supply pipe 7, the location of corrosion can be accurately recorded, thereby achieving a comprehensive and precise assessment of the corrosion resistance performance of the water supply pipe 7.

[0031] In a preferred embodiment of the present invention, the control component 6 includes a controller 29 and a display screen 30. The controller 29 is fixedly mounted on the upper end of the frame 1, and the display screen 30 is mounted on the controller 29. The first drive motor 8, the second drive motor 15, the third drive motor 17, the hydraulic telescopic rod 27, and the detection probe 28 are all electrically connected to the controller 29. The controller 29 can control the operation of each component, and the data detected by the detection probe 28 can be displayed on the display screen 30 for easy observation and recording by the staff.

[0032] Working principle and usage process of this invention: First, the water supply pipe 7 to be tested is fitted onto the side end of the support cylinder 16, and the fixing component 4 is activated by the control component 6. The third drive motor 17 is started under the control of the controller 29, driving the second threaded rod 18 to rotate. Since the moving plate 19 is threaded onto the side end of the second threaded rod 18, the moving plate 19 will move with the rotation of the second threaded rod 18. When the moving plate 19 moves, the expansion plate 20 is pushed open by the support rod 21, and the expansion plate 20 applies pressure to the inner wall of the water supply pipe 7, thereby firmly fixing the water supply pipe 7 to the support cylinder 16. For water supply pipes 7 of different specifications, the moving distance of the moving plate 19 can be adjusted by controlling the operation of the third drive motor 17, thereby changing the degree of expansion of the expansion plate 20 to adapt to water supply pipes 7 with different inner diameters and ensure the fixing effect.

[0033] After fixing, control component 6 controls detection component 5 to start working. Controller 29 controls the hydraulic telescopic rod 27 to extend, causing the detection probe 28 to descend and contact the surface of the water supply pipe 7. Detection probe 28 can detect the corrosion condition of the water supply pipe 7 surface and transmit the detected data to controller 29 in real time.

[0034] During the inspection process, to achieve omnidirectional inspection of the water supply pipe 7, the drive assembly 2 and the rotating assembly 3 work together. The controller 29 controls the first drive motor 8 to start, the drive gear 11 rotates, and drives the driven gear 12 to rotate through the chain 13, causing the two first threaded rods 9 to rotate synchronously. The moving block 10 moves laterally on the first threaded rods 9, thereby driving the rotating assembly 3 and the water supply pipe 7 fixed on the support cylinder 16 to move laterally. In this way, the inspection probe 28 can inspect different axial positions of the water supply pipe 7.

[0035] Simultaneously, the controller 29 starts the second drive motor 15, causing the support cylinder 16 to rotate. Since the water supply pipe 7 is fixed to the support cylinder 16 by the fixing component 4, the water supply pipe 7 will rotate together with the support cylinder 16. This allows the detection probe 28 to perform comprehensive detection in the circumferential direction of the water supply pipe 7, avoiding detection blind spots.

[0036] The detected data is processed by the controller 29 and displayed on the screen 30. The staff can intuitively understand the corrosion resistance of the water supply pipe 7 through the screen 30 and determine whether the water supply pipe 7 meets the quality standards.

[0037] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A corrosion test apparatus for water pipes, characterized by, Include: Rack (1), Drive assembly (2), the drive assembly (2) is arranged on the rack (1) for driving water pipe (7) transverse movement; Rotary assembly (3), the rotary assembly (3) is arranged on the drive assembly (2) for driving water pipe (7) rotary rotary assembly (3); Fixed assembly (4), the fixed assembly (4) is arranged on the rotary assembly (3) for water pipe (7) expansion fixed; Detection assembly (5), the detection assembly (5) is fixedly installed above the rack (1) for water pipe (7) corrosion resistance detection; Control assembly (6), the control system is fixedly installed on the upper end of the rack (1), the drive assembly (2), rotary assembly (3), fixed assembly (4) and detection assembly (5) are electrically connected with control assembly (6).

2. A corrosion testing apparatus for water pipes according to claim 1, wherein The drive assembly (2) includes first drive motor (8), first threaded rod (9), moving block (10), driving gear (11), driven gear (12) and chain (13), the first threaded rod (9) is two, respectively rotatingly installed at both ends of the rack (1), the first drive motor (8) is fixedly installed at the side end of the rack (1), the output shaft of the first drive motor (8) is fixedly installed with driving gear (11), the side end of each first threaded rod (9) is fixedly installed with driven gear (12), the driving gear (11) and driven gear (12) are installed with chain (13) between them, the driving gear (11), driven gear (12) are engaged with chain (13), the side end of each first threaded rod (9) is threadedly installed with moving block (10), the rotary assembly (3) is fixedly installed between the two moving blocks (10).

3. A corrosion testing apparatus for water pipes according to claim 1, wherein The rotary assembly (3) includes mounting plate (14), second drive motor (15) and support cylinder (16), the mounting plate (14) is fixedly installed between the two moving blocks (10), one end of the support cylinder (16) is installed inside the mounting plate (14), and the support cylinder (16) is rotatably connected with the mounting plate (14), the second drive motor (15) is fixedly installed at the side end of the mounting plate (14), and the output end of the second drive motor (15) is fixedly connected with the support cylinder (16), the support cylinder (16) is provided with a cavity inside, and the fixed assembly (4) is installed in the cavity of the support cylinder (16).

4. A corrosion testing apparatus for water pipes according to claim 3, wherein The water pipe (7) is sleeved on the side end of the support cylinder (16).

5. The apparatus for corrosion testing of water pipes according to claim 1, wherein The fixed assembly (4) comprises a third driving motor (17), a second threaded rod (18), a moving plate (19), an expansion plate (20), a support rod (21) and a connecting assembly (22); the third driving motor (17) is fixedly installed inside the support cylinder (16), the second threaded rod (18) is rotatably installed inside the support table, the output end of the third driving motor (17) is fixedly connected with one end of the second threaded rod (18), the moving plate (19) is threadedly installed at the side end of the second threaded rod (18), a plurality of notches (23) are formed in the side end of the support cylinder (16), and the expansion plate (20) is installed at each notch (23); one end of the expansion plate (20) is rotatably connected with the inner wall of the support cylinder (16) through the connecting assembly (22), one end of the support rod (21) is rotatably connected with the side end of the moving plate (19) through the connecting assembly (22), and the other end of the support rod (21) is rotatably connected with the side wall of the expansion plate (20) through the connecting assembly (22).

6. A corrosion testing apparatus for water pipes according to claim 5, wherein The connecting assembly (22) comprises a first connecting piece (24) and a second connecting piece (25), and the first connecting piece (24) and the second connecting piece (25) are rotatably connected.

7. A corrosion testing apparatus for water pipes according to claim 1, wherein The detection assembly (5) comprises a fixing frame (26), a hydraulic telescopic rod (27) and a detection probe (28); the fixing frame (26) is fixedly installed on the rack (1), the hydraulic telescopic rod (27) is fixedly installed below the fixing frame (26), the telescopic end of the hydraulic telescopic rod (27) is vertically downward, and the detection probe (28) is fixedly installed at the lower end of the hydraulic telescopic rod (27).

8. The apparatus for testing the corrosion resistance of a water pipe according to claim 1, wherein The control assembly (6) comprises a controller (29) and a display screen (30); the controller (29) is fixedly installed at the upper end of the rack (1), the display screen (30) is installed on the controller (29), and the first driving motor (8), the second driving motor (15), the third driving motor (17), the hydraulic telescopic rod (27) and the detection probe (28) are electrically connected with the controller (29).

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