Defect deformation detection device for inner wall of PE pipe

Abstract

According to the PE pipe inner wall defect deformation detection device, an inner wall defect detection assembly comprises a contact block, an elastic traction rod and a defect detector, a limiting hole is formed in the contact block, a first inner wall detection plate and a second inner wall detection plate are arranged on the upper portion and the lower portion in the limiting hole respectively, and the upper portion of the first inner wall detection plate protrudes out of the limiting hole; the lower portion of the second inner wall detection plate protrudes out of the limiting hole, and the elastic traction rod is jointly connected to one side of the first inner wall detection plate and one side of the second inner wall detection plate. The inner wall defect detection assembly, the first inner wall detection plate and the second inner wall detection plate are tightly connected through the elastic traction rod, and when defects or impurities exist on the inner wall of the PE pipe, the first inner wall detection plate and the second inner wall detection plate are extruded and move into the limiting holes, so that the detection sensitivity is improved, and the detection precision is improved. And it can be ensured that the detection plate can stably move when being stressed, and equipment damage caused by sudden stress is avoided.

Description

Technical Field

[0001] This invention belongs to the field of PE pipe testing technology, specifically a device for detecting deformation defects in the inner wall of PE pipes. Background Technology

[0002] PE stands for polyethylene. PE has excellent resistance to most household and industrial chemicals. To facilitate environmentally friendly water transportation, PE pipes are generally equipped with an environmentally friendly plastic inner tube. Environmentally friendly plastics mainly include rigid polyvinyl chloride, cross-linked polyethylene, and chlorinated polyvinyl chloride, which are favored by people because they are harmless to the human body, corrosion resistant, and have low thermal conductivity. PE pipe is a highly crystalline, non-polar thermoplastic resin pipe. Due to its non-toxic, tasteless, odorless, good cold and heat resistance and chemical stability, high rigidity and toughness, good mechanical properties, and convenient installation, PE pipe has many advantages.

[0003] In the existing PE pipe production process, traditional methods for detecting defects and deformations on the inner wall of PE pipes, such as visual inspection and ultrasonic testing, while capable of detecting defects and impurities to some extent, have several shortcomings. Visual inspection is limited by the inspector's eyesight, experience, and subjective judgment, making it difficult to accurately identify and quantify minute defects and impurities. Although ultrasonic testing can penetrate the pipe wall, its sensitivity and accuracy in detecting minute impurities and shallow defects attached to the inner wall need improvement.

[0004] In addition, traditional methods often lack effective collection and treatment mechanisms for detected inner wall defects and impurities. Manual cleaning is not only inefficient, but may also cause secondary damage to the pipe. Simple mechanical cleaning devices often cannot completely remove impurities and are prone to diffusion and secondary pollution. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, the present invention provides a device for detecting deformation defects in the inner wall of PE pipes, so as to at least partially solve the above-mentioned technical problems.

[0006] The technical solution adopted in this invention is as follows: This invention proposes a device for detecting deformation defects in the inner wall of PE pipes, comprising: An internal wall defect detection assembly includes a contact block, an elastic traction rod, and a defect detector. The contact block has a limiting hole inside, and a first internal wall detection plate and a second internal wall detection plate are respectively located above and below the limiting hole. The upper part of the first internal wall detection plate protrudes from the limiting hole, and the lower part of the second internal wall detection plate protrudes from the limiting hole. The elastic traction rod is connected to one side of both the first and second internal wall detection plates and is located outside the contact block. A first L-shaped guide rod is located on the other side of the first internal wall detection plate, and a first scraping plate is located at the other end of the first L-shaped guide rod. A second L-shaped guide rod is located on the other side of the second internal wall detection plate, and a second scraping plate is located at the other end of the second L-shaped guide rod. The first and second L-shaped guide rods are located outside the contact block, and the first scraping plate is located above the second scraping plate. Defect detectors are located on the outer walls of both the first and second scraping plates. The PE pipe body has a working cylinder on its outside, and the inner wall defect detection component is located inside the working cylinder. The PE pipe body is inserted outside the inner wall defect detection component.

[0007] In one embodiment of the present invention, the first inner wall detection plate and the second inner wall detection plate are both provided with buffer damping rods on the side inside the contact block; The second inner wall detection plate is squeezed by impurities on the inner wall. The defect detector transmits detection information. The second inner wall detection plate moves into the limiting hole. The buffer damping rod provides buffer for the second inner wall detection plate. The elastic traction rod transmits the squeezing force to the first inner wall detection plate. The first inner wall detection plate is under force, which drives the first scraping plate to cut off the impurities on the inner wall downward. The first inner wall detection plate is squeezed by impurities on the inner wall. The defect detector transmits detection information. The first inner wall detection plate moves into the limiting hole. The buffer damping rod provides buffer for the first inner wall detection plate. The elastic traction rod transmits the squeezing force to the second inner wall detection plate. The second inner wall detection plate is subjected to force, which drives the second scraping plate to cut off the impurities on the inner wall downward.

[0008] In one embodiment of the present invention, an impurity pump is provided at the bottom of the working cylinder, and a conveying pipe is provided at the working end of the impurity pump, with the other end of the conveying pipe located below the PE pipe body.

[0009] In one embodiment of the present invention, a drive motor is provided at the bottom of the inner cavity of the working cylinder, and a rotating rod is provided at the working end of the drive motor. The inner wall defect detection component is provided on the outer wall of the rotating rod. Multiple sets of the inner wall defect detection components are provided, and the multiple sets of the inner wall defect detection components rotate inside the PE pipe body.

[0010] In one embodiment of the present invention, the device for detecting deformation defects in the inner wall of PE pipes further includes: An impurity collection assembly is disposed inside the conveying pipe. The impurity collection assembly includes a primary filter plate, a secondary filter plate, and concave impurity filter rods. A collection cover is provided at one end of the conveying pipe. The primary filter plate is disposed inside the collection cover. Two sets of secondary filter plates are provided, and a rotating rod is provided between the two sets of secondary filter plates. Bearing seats are provided at both ends of the rotating rod. The two bearing seats are respectively disposed on the outer wall of the two sets of secondary filter plates. A rotating shaft is sleeved on the outer wall of the rotating rod. The concave impurity filter rods are disposed on the outer wall of the rotating shaft. Multiple sets of concave impurity filter rods are provided. Tension damping rods are provided on both sides of the rotating shaft. The other end of the tension damping rods is respectively disposed on the outer wall of the secondary filter plate. Multiple sets of the inner wall defect detection components rotate inside the PE pipe body, and the processed inner wall impurities fall into the impurity collection component for processing.

[0011] In one embodiment of the present invention, a lifting plate is provided at the bottom of the inner cavity of the working cylinder, the drive motor is located at the center of the lifting plate, and shock-absorbing damping rods are provided at the four corners of the bottom of the lifting plate. The lifting plate receives impurities on the inner wall that have not been processed by the impurity collection component.

[0012] In one embodiment of the present invention, the bottom of the working cylinder is provided with four sets of support rods, and the bottom of the four sets of support rods is provided with a base plate, and the bottom of the base plate is provided with anti-slip texture.

[0013] In one embodiment of the present invention, the surface of the base plate is provided with a control panel, which is electrically connected to a defect detector, a drive motor and an impurity extraction pump via conductive lines.

[0014] In one embodiment of the present invention, multiple sets of contact blocks are closely attached to the inner wall of the PE pipe body, so that the PE pipe body is fixed inside the working cylinder. A clamping device is also provided on the outside of the PE pipe body to further fix the PE pipe body and improve working stability.

[0015] The beneficial effects of the technical solution of this invention are as follows: This invention utilizes an inner wall defect detection assembly. A first and second inner wall detection plate are tightly connected by an elastic traction rod. When defects or impurities exist on the inner wall of the PE pipe, both plates are compressed and move towards the limiting hole. This not only improves detection sensitivity but also ensures smooth movement of the detection plates under stress, preventing equipment damage due to sudden force. Simultaneously, the introduction of the elastic traction rod allows the two detection plates to transmit compressive force to each other, thus achieving bidirectional detection and response.

[0016] This invention utilizes the cooperation between L-shaped guide rods and scraping plates. The first L-shaped guide rod and the second L-shaped guide rod are respectively connected to the first scraping plate and the second scraping plate, so that the scraping plate can remove impurities or defects on the inner wall as the detection plate moves. The L-shaped guide rods not only play a guiding role, but also ensure the stability of the scraping plate during the movement process.

[0017] This invention utilizes an impurity collection assembly. A primary filter plate initially intercepts larger impurity particles, while a secondary filter plate further refines the filtration. The concave impurity filter rod, with its concave design, effectively captures finer impurities, preventing secondary contamination. A rotating shaft and a dynamic filtering rotating rod with the concave impurity filter rod are connected to the secondary filter plate via a bearing seat. The rotating shaft is sleeved on the rotating rod, and the concave impurity filter rod is located on the outer wall of the rotating shaft. This allows the concave impurity filter rod to continuously change the position of its filtering surface during rotation, thereby preventing impurity accumulation and clogging.

[0018] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein: Figure 1 This is a schematic diagram of the internal wall defect detection component of the device for detecting internal wall defects and deformation of PE pipes proposed in an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the impurity collection component of the PE pipe inner wall defect deformation detection device proposed in an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the device for detecting deformation defects in the inner wall of PE pipes proposed in an embodiment of the present invention; Figure 4 This is a front view of the device for detecting deformation defects in the inner wall of PE pipes according to an embodiment of the present invention. Figure 5This is a top view of the device for detecting deformation defects in the inner wall of PE pipes according to an embodiment of the present invention. Figure 6 for Figure 4 A cross-sectional view along the cutting line AA; Figure 7 for Figure 5 A cross-sectional view along the cutting line BB; Figure 8 The direction of motion of the inner wall defect detection component of the PE pipe inner wall defect deformation detection device proposed in this embodiment of the invention.

[0020] In the diagram: 1. Inner wall defect detection component; 2. Contact block; 3. Limiting hole; 4. First inner wall detection plate; 5. Second inner wall detection plate; 6. Elastic traction rod; 7. Buffer damping rod; 8. First L-shaped guide rod; 9. Second L-shaped guide rod; 10. First scraping plate; 11. Control panel; 12. Second scraping plate; 13. Defect detector; 14. Drive motor; 15. Rotating rod; 16. Lifting plate; 17. Vibration damping rod; 18. Working cylinder; 19. PE pipe body; 20. Impurity extraction pump; 21. Conveying pipe; 22. Collection hood; 23. Primary filter plate; 24. Secondary filter plate; 25. Bearing seat; 26. Rotating rod; 27. Tension damping rod; 28. Rotating shaft; 29. ​​Concave impurity filter rod; 30. Support rod; 31. Base plate; 32. Impurity collection component. Detailed Implementation

[0021] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0022] The following describes an embodiment of the present invention with reference to the accompanying drawings: a device for detecting deformation defects in the inner wall of PE pipes.

[0023] like Figures 1 to 8As shown, this embodiment of the invention provides a device for detecting deformation defects in the inner wall of PE pipes, comprising: an inner wall defect detection component 1, which includes a contact block 2, an elastic traction rod 6, and a defect detector 13. A limiting hole 3 is formed inside the contact block 2. A first inner wall detection plate 4 and a second inner wall detection plate 5 are respectively disposed above and below the limiting hole 3. The upper part of the first inner wall detection plate 4 protrudes beyond the limiting hole 3, and the lower part of the second inner wall detection plate 5 protrudes beyond the limiting hole 3. The elastic traction rod 6 is connected to one side of both the first inner wall detection plate 4 and the second inner wall detection plate 5, and is disposed outside the contact block 2. A first L-shaped guide rod 8 is provided on the other side of the first inner wall detection plate 4, and a first scraping plate 10 is provided at the other end of the first L-shaped guide rod 8. A second L-shaped guide rod 9 is provided on the other side of the second inner wall detection plate 5, and a second scraping plate 12 is provided at the other end of the second L-shaped guide rod 9. The first L-shaped guide rod 8 and the second L-shaped guide rod 9 are located outside the contact block 2. The first scraping plate 10 is located above the second scraping plate 12. Defect detectors 13 are provided on the outer walls of both the first scraping plate 10 and the second scraping plate 12. Buffer damping rods 7 are provided on the sides of the first inner wall detection plate 4 and the second inner wall detection plate 5 located inside the contact block 2. The second inner wall detection plate 5 is squeezed by impurities on the inner wall. The defect detector 13 transmits detection information, and the second inner wall detection plate 5 moves into the limiting hole 3. The buffer damping rod 7 provides buffer for the second inner wall detection plate 5, and the elastic traction rod 6 transmits the squeezing force to the first inner wall detection plate 4. The first inner wall detection plate 4 is subjected to force, which drives the first scraping plate 10 to cut off the impurities on the inner wall downwards. The first inner wall detection plate 4 is squeezed by impurities on the inner wall. The defect detector 13 transmits detection information, and the first inner wall detection plate 4 moves into the limiting hole 3. The buffer damping rod 7 provides buffer for the first inner wall detection plate 4, and the elastic traction rod 6 transmits the squeezing force to the second inner wall detection plate 5. The second inner wall detection plate 5 is subjected to force, which drives the second scraping plate 12 to cut off the impurities on the inner wall downwards.

[0024] The PE pipe body 19 has a working cylinder 18 on its outside. The inner wall defect detection component 1 is located inside the working cylinder 18, and the PE pipe body 19 is inserted outside the inner wall defect detection component 1.

[0025] In specific applications, the limiting hole 3 inside the contact block 2 provides a stable movement track for the first inner wall detection plate 4 and the second inner wall detection plate 5. The size of the limiting hole 3 ensures that the first inner wall detection plate 4 and the second inner wall detection plate 5 can move along a predetermined path when compressed, thereby ensuring the accuracy and reliability of the detection. The first inner wall detection plate 4 and the second inner wall detection plate 5 are located on the upper and lower sides of the limiting hole 3, respectively, and protrude from the limiting hole 3, allowing them to directly contact the inner wall of the PE pipe. When impurities or defects exist on the inner wall of the pipe, depending on the specific situation, the first inner wall detection plate 4 and the second inner wall detection plate 5 will be compressed and move into the limiting hole 3. At this time, the elastic traction rod 6 connects the first inner wall detection plate 4 and the second inner wall detection plate 5, which can transmit the compressive force on one of the first inner wall detection plate 4 or the second inner wall detection plate 5 to the other, achieving force balance and transmission, and enhancing the sensitivity of the inner wall defect detection component 1.

[0026] The first L-shaped guide rod 8 and the second L-shaped guide rod 9 are respectively connected to the outside of the first inner wall detection plate 4 and the second inner wall detection plate 5. Their other ends are respectively equipped with a first scraping plate 10 and a second scraping plate 12. The L-shaped structure not only provides stable support for the first scraping plate 10 and the second scraping plate 12, but also ensures that the first scraping plate 10 and the second scraping plate 12 can accurately target and remove impurities from the inner wall. A defect detector 13 is provided on the outer wall of the scraping plate, which can perform real-time detection of the inner wall while removing impurities, improving the comprehensiveness and accuracy of the detection.

[0027] To mitigate the impact and wear of the first inner wall detection plate 4 and the second inner wall detection plate 5 under compression, buffer damping rods 7 are provided on the sides of both plates. These rods absorb some of the compressive force, protecting the plates from damage and contributing to the stability and durability of the inner wall defect detection assembly 1. The PE pipe body 19 is inserted outside the inner wall defect detection assembly 1, while the working cylinder 18 tightly wraps around it. The working cylinder 18 not only provides stable support and guidance for the inner wall defect detection assembly 1 but also ensures smooth movement and detection along the inner wall of the PE pipe body 19.

[0028] As the inner wall defect detection assembly 1 moves along the PE pipe body 19 inside the working cylinder 18, the first inner wall detection plate 4 and the second inner wall detection plate 5 will respectively contact the inner wall of the pipe. Once impurities or defects are detected on the inner wall, the corresponding detection plate will be squeezed and move into the limiting hole 3. At this time, the elastic traction rod 6 transmits the squeezing force to the other detection plate, while the buffer damping rod 7 provides buffer protection. As the detection plate moves, the L-shaped guide rod drives the scraping plate downward to cut off the impurities on the inner wall. During the scraping process, the defect detector 13 continuously detects the inner wall to ensure that the impurities are completely removed and the quality of the inner wall is guaranteed.

[0029] In one possible embodiment, the device for detecting deformation defects in the inner wall of PE pipes further includes: an impurity collection assembly 32, which is disposed inside the conveying pipe 21. The impurity collection assembly 32 includes a primary filter plate 23, a secondary filter plate 24, and a concave impurity filter rod 29. One end of the conveying pipe 21 is provided with a collection cover 22. The primary filter plate 23 is disposed inside the collection cover 22. Two sets of secondary filter plates 24 are provided, and a rotating rod 26 is provided between the two sets of secondary filter plates 24. Both ends of the rotating rod 26 are provided with bearing seats 25. Two bearing seats 25 are respectively disposed on the outer wall of two sets of secondary filter plates 24. A rotating shaft 28 is sleeved on the outer wall of the rotating rod 26. A concave impurity filter rod 29 is disposed on the outer wall of the rotating shaft 28. Multiple sets of concave impurity filter rods 29 are provided. Tension damping rods 27 are provided on both sides of the rotating shaft 28. The other end of the tension damping rod 27 is respectively disposed on the outer wall of the secondary filter plate 24. Multiple sets of inner wall defect detection components 1 rotate inside the PE pipe body 19. The processed inner wall impurities fall into the interior of the impurity collection component 32 for processing. The bottom of the working cylinder 18 is equipped with an impurity pump 20, and the working end of the impurity pump 20 is equipped with a conveying pipe 21. The other end of the conveying pipe 21 is located below the PE pipe body 19.

[0030] In this embodiment of the invention, the primary filter plate 23 is located inside the collection hood 22, which can initially intercept larger impurity particles and protect the stability of the subsequent filtration system. A rotating rod 26 is provided between the two sets of secondary filter plates 24. The rotating rod 26 is fixed to the outer wall of the secondary filter plate 23 by a bearing seat 25, realizing the freedom of rotation. It allows the entire impurity collection assembly 32 to be rotated when necessary, which helps to evenly distribute impurities during the filtration process and improves filtration efficiency. A rotating shaft 28 is sleeved on the rotating rod 26, on which multiple sets of concave impurity filter rods 29 are distributed. The concave shape can more effectively capture impurities, especially those with irregular shapes or strong adhesion. At the same time, the rotation of the concave filter rods 29 driven by the rotating shaft 28 can further promote the separation and discharge of impurities.

[0031] The tension damping rod 27 connects the secondary filter plate 24 and the rotating shaft 28, providing necessary stability and cushioning for the impurity collection assembly 32. During rotation, the tension damping rod 27 can absorb and disperse the vibration and impact force generated by impurity impacts, protecting the entire impurity collection assembly 32 from damage.

[0032] The impurity pump 20 generates sufficient suction to draw impurities from the inner wall of the PE pipe body 19 after treatment to the impurity collection assembly 32 via the conveying pipe 21. The conveying pipe 21 not only connects the impurity pump 20 and the impurity collection assembly 32, but is also located below the PE pipe body 19 to ensure smooth impurity transport.

[0033] After treatment, the impurities on the inner wall fall into the conveying pipe 21 located below the PE pipe body 19 under gravity. At this time, the impurity extraction pump 20 starts working, generating a strong suction force to draw the impurities through the conveying pipe 21 into the impurity collection assembly 32. In the impurity collection assembly 32, the impurities first encounter the primary filter plate 23, where larger impurity particles are intercepted and retained. Subsequently, smaller impurity particles pass through the primary filter plate 23 and enter the filtration area composed of two sets of secondary filter plates 24. The impurity particles are further captured and separated by the concave impurity filter rods 29 on the rotating shaft 28. The concave design increases the contact area and residence time of the impurities, improving filtration efficiency.

[0034] Meanwhile, the rotating rod 26 rotates freely between the secondary filter plates 24 via the bearing seat 25, driving the rotating shaft 28 and the concave filter rod 29 to rotate together. The rotation helps to distribute and discharge impurities evenly, preventing the impurity collection assembly 32 from clogging and overloading.

[0035] In one possible implementation, a drive motor 14 is provided at the bottom of the inner cavity of the working cylinder 18, and a rotating rod 15 is provided at the working end of the drive motor 14. The inner wall defect detection component 1 is provided on the outer wall of the rotating rod 15, and multiple sets of the inner wall defect detection component 1 are provided. The multiple sets of inner wall defect detection components 1 rotate inside the PE pipe body 19.

[0036] The bottom of the inner cavity of the working cylinder 18 is also provided with a lifting plate 16, and the drive motor 14 is located at the center of the lifting plate 16. The four corners of the bottom of the lifting plate 16 are provided with shock-absorbing damping rods 17. The lifting plate 16 receives the inner wall impurities that have not been processed by the impurity collection component 32.

[0037] In a specific application of this invention, the drive motor 14 is installed at the bottom of the inner cavity of the working cylinder 18. By controlling the speed and direction of the drive motor 14, the rotating rod 15 and the inner wall defect detection component 1 can be driven.

[0038] The lifting plate 16 is used to receive impurities from the inner wall that have not been processed by the impurity collection component 32. Each of its four bottom corners is equipped with a shock-absorbing damping rod 17. The damping rod 17 not only provides necessary support and stability but also effectively absorbs and disperses the vibrations and impacts generated by the drive motor 14, protecting the lifting plate 16 and its components from damage. The damping rod 17 uses high-performance elastic materials and a damping structure, enabling it to maintain a stable damping effect under various working conditions.

[0039] In one possible implementation, the bottom of the working cylinder 18 is provided with four sets of support rods 30, and the bottom of the four sets of support rods 30 is provided with a base plate 31, and the bottom of the base plate 31 is provided with anti-slip texture.

[0040] Multiple sets of contact blocks 2 are tightly attached to the inner wall of the PE pipe body 19, so that the PE pipe body 19 is fixed inside the working cylinder 18. The PE pipe body 19 is also provided with clamping devices on the outside to further fix the PE pipe body 19 and improve working stability.

[0041] In this embodiment of the invention, four sets of support rods 30 are distributed at the bottom of the working cylinder 18, forming a stable support frame to ensure the stability of the working cylinder during operation. The support rods 30 are made of high-strength, corrosion-resistant materials to adapt to various complex working environments and ensure long-term reliability. The base plate 31 serves as the base for the support rods 30, and its area is large enough to provide a stable support surface. The bottom of the base plate 31 is provided with anti-slip textures, which increase the friction between the base plate and the ground, preventing the device from sliding or shifting during operation.

[0042] The clamping device is installed on the outside of the PE pipe body 19 to further secure the pipe and improve working stability. The clamping device adopts mechanical clamping, pneumatic clamping, or magnetic clamping, depending on the material, size, and working requirements of the pipe. The clamping device takes into account the circular cross-section and deformation of the pipe to ensure that the pipe is not damaged during the clamping process (this clamping device is not the focus of this invention, so it can be ignored).

[0043] In one possible implementation, the surface of the base plate 31 is provided with a control panel 11, which is electrically connected to the defect detector 13, the drive motor 14 and the impurity pump 20 via conductive lines.

[0044] In specific applications of this invention, the defect detector 13, drive motor 14, and impurity pump 20 used in this device are all mature existing technologies. The working principles of the defect detector 13, drive motor 14, and impurity pump 20 are also well known to those skilled in the art, and will not be described in detail here.

[0045] In practical use, when the inner wall defect detection device starts working, the inner wall defect detection component 1 is slowly inserted into the interior of the PE pipe body 19 under the guidance of the working cylinder 18, and the first inner wall detection plate 4 and the second inner wall detection plate 5 respectively contact the inner wall of the pipe.

[0046] When the device for detecting deformation defects on the inner wall of PE pipes starts working, the drive motor 14 is first activated. The drive motor 14 drives multiple sets of inner wall defect detection components 1 to rotate at high speed inside the PE pipe body 19 via the rotating rod 15. When the second inner wall detection plate 5 first contacts the inner wall impurities, it will be squeezed and move into the limiting hole 3. At this time, the buffer damping rod 7 absorbs part of the squeezing force and protects the second inner wall detection plate 5 from damage. At the same time, the elastic traction rod 6 transmits the remaining squeezing force to the first inner wall detection plate 4, causing it to move accordingly. As the first inner wall detection plate 4 moves, the first L-shaped guide rod 8 drives the first scraping plate 10 to move downwards, removing the impurities. During this process, the defect detector 13 on the outer wall of the first scraping plate 10 continuously monitors the scraping area to ensure that the impurities are completely removed.

[0047] Specifically, similarly, when the first inner wall detection plate 4 comes into contact with impurities on the inner wall, a similar scraping action will be triggered. At this time, the second inner wall detection plate 5, under the transmission of the elastic traction rod 6, will drive the second scraping plate 12 to move downwards and remove the impurities. The defect detector 13 on the outer wall of the second scraping plate 12 will also monitor in real time to ensure the scraping effect.

[0048] Specifically, the processed inner wall impurities fall into the conveying pipe 21 located below the pipe under gravity. At this time, the impurity pump 20 starts, generating a strong suction force to draw the impurities through the conveying pipe to the impurity collection assembly 32. In the impurity collection assembly 32, the impurities first encounter the primary filter plate 23, where larger impurity particles are intercepted and retained. Subsequently, smaller impurity particles pass through the primary filter plate 23 and enter the filtration area between the secondary filter plates 24. The impurity particles are further filtered by the concave impurity filter rods 29 on the rotating shaft 28. The concave design increases the contact area of ​​the impurities and improves the filtration efficiency. At the same time, the rotation of the rotating shaft 28 and the concave filter rods 29 helps to evenly distribute and discharge the impurities.

[0049] Specifically, during the testing process, if impurities on the inner wall are not completely removed by the impurity collection component 32, the impurities will fall onto the lifting plate 16. At this time, the shock-absorbing damping rod 17 can effectively absorb and disperse the vibration and impact generated by the impurities, protecting the lifting plate and its components from damage.

[0050] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0051] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A device for detecting deformation defects in the inner wall of PE pipes, characterized in that, include: An inner wall defect detection assembly (1) includes a contact block (2), an elastic traction rod (6), and a defect detector (13). A limiting hole (3) is formed inside the contact block (2). A first inner wall detection plate (4) and a second inner wall detection plate (5) are respectively positioned above and below the limiting hole (3). The upper part of the first inner wall detection plate (4) protrudes from the limiting hole (3), and the lower part of the second inner wall detection plate (5) protrudes from the limiting hole (3). The elastic traction rod (6) is connected to one side of both the first inner wall detection plate (4) and the second inner wall detection plate (5). The elastic traction rod (6) is located on the contact block (2). Outside the contact block (2), a first L-shaped guide rod (8) is provided on the other side of the first inner wall detection plate (4), and a first scraping plate (10) is provided at the other end of the first L-shaped guide rod (8). A second L-shaped guide rod (9) is provided on the other side of the second inner wall detection plate (5), and a second scraping plate (12) is provided at the other end of the second L-shaped guide rod (9). The first L-shaped guide rod (8) and the second L-shaped guide rod (9) are located outside the contact block (2). The first scraping plate (10) is located above the second scraping plate (12). Defect detectors (13) are provided on the outer walls of both the first scraping plate (10) and the second scraping plate (12). The PE pipe body (19) has a working cylinder (18) on its outside. The inner wall defect detection component (1) is located inside the working cylinder (18), and the PE pipe body (19) is inserted outside the inner wall defect detection component (1).

2. The device for detecting deformation defects in the inner wall of PE pipes according to claim 1, characterized in that, The first inner wall detection plate (4) and the second inner wall detection plate (5) are provided with buffer damping rods (7) on the side inside the contact block (2). The second inner wall detection plate (5) is squeezed by the inner wall impurities. The defect detector (13) transmits detection information. The second inner wall detection plate (5) moves into the interior of the limiting hole (3). The buffer damping rod (7) provides buffer for the second inner wall detection plate (5). The elastic traction rod (6) transmits the squeezing force to the first inner wall detection plate (4). The first inner wall detection plate (4) is under force, which drives the first scraping plate (10) to cut off the inner wall impurities downward. The first inner wall detection plate (4) is squeezed by impurities on the inner wall. The defect detector (13) transmits detection information. The first inner wall detection plate (4) moves into the interior of the limiting hole (3). The buffer damping rod (7) provides buffer for the first inner wall detection plate (4). The elastic traction rod (6) transmits the squeezing force to the second inner wall detection plate (5). The second inner wall detection plate (5) is subjected to force, which drives the second scraping plate (12) to cut off the impurities on the inner wall downward.

3. The device for detecting deformation defects in the inner wall of PE pipes according to claim 1, characterized in that, The bottom of the working cylinder (18) is provided with an impurity pump (20), and the working end of the impurity pump (20) is provided with a conveying pipe (21). The other end of the conveying pipe (21) is located below the PE pipe body (19).

4. The device for detecting deformation defects in the inner wall of PE pipes according to claim 1, characterized in that, The bottom of the inner cavity of the working cylinder (18) is provided with a drive motor (14), and the working end of the drive motor (14) is provided with a rotating rod (15). The inner wall defect detection component (1) is provided on the outer wall of the rotating rod (15). The inner wall defect detection component (1) is provided in multiple sets, and the multiple sets of the inner wall defect detection components (1) rotate inside the PE pipe body (19).

5. The device for detecting deformation defects in the inner wall of PE pipes according to claim 3, characterized in that, Also includes: An impurity collection assembly (32) is located inside the conveying pipe (21). The impurity collection assembly (32) includes a primary filter plate (23), a secondary filter plate (24), and a concave impurity filter rod (29). One end of the conveying pipe (21) is provided with a collection cover (22). The primary filter plate (23) is located inside the collection cover (22). Two sets of secondary filter plates (24) are provided, and a rotating rod (26) is provided between the two sets of secondary filter plates (24). Both ends of the rod (26) are provided with bearing seats (25), and the two bearing seats (25) are respectively provided on the outer walls of the two sets of secondary filter plates (24). The outer wall of the rotating rod (26) is fitted with a rotating shaft (28). The concave impurity filter rod (29) is provided on the outer wall of the rotating shaft (28). Multiple sets of the concave impurity filter rod (29) are provided. Both sides of the rotating shaft (28) are provided with tension damping rods (27), and the other end of the tension damping rods (27) is respectively provided on the outer wall of the secondary filter plate (24). Multiple sets of the inner wall defect detection components (1) rotate inside the PE pipe body (19), and the processed inner wall impurities fall into the impurity collection component (32) for processing.

6. The device for detecting deformation defects in the inner wall of PE pipes according to claim 4, characterized in that, The bottom of the inner cavity of the working cylinder (18) is also provided with a lifting plate (16), the drive motor (14) is located at the center of the lifting plate (16), and the four corners of the bottom of the lifting plate (16) are provided with shock-absorbing damping rods (17). The lifting plate (16) receives the inner wall impurities that have not been processed by the impurity collection component (32).

7. The device for detecting deformation defects in the inner wall of PE pipes according to claim 1, characterized in that, The bottom of the working cylinder (18) is provided with four sets of support rods (30), and the bottom of the four sets of support rods (30) is provided with a base plate (31), and the bottom of the base plate (31) is provided with anti-slip texture.

8. The device for detecting deformation defects in the inner wall of PE pipes according to claim 7, characterized in that, The surface of the base plate (31) is provided with a control panel (11), which is electrically connected to the defect detector (13), the drive motor (14) and the impurity pump (20) via conductive lines.

9. The device for detecting deformation defects in the inner wall of PE pipes according to claim 1, characterized in that, Multiple sets of contact blocks (2) are closely attached to the inner wall of the PE pipe body (19), so that the PE pipe body (19) is fixed inside the working cylinder (18). The PE pipe body (19) is also provided with clamping devices on the outside to further fix the PE pipe body (19) and improve working stability.

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