Thermoplastic pipe deformation indication structure and thermoplastic pipe

Abstract

The invention relates to a thermoplastic plastic pipe deformation indication structure and a thermoplastic plastic pipe, and the thermoplastic plastic pipe deformation indication structure comprises a force-induced discoloration layer which is used for wrapping the outer side of a pipeline body; the multiple outer layers are arranged at intervals and all wrap the outer side of the force-induced discoloration layer, and an annular window is formed between every two adjacent outer layers; the multiple light-proof elastic sealing covers correspond to the annular windows in a one-to-one mode, and all the elastic sealing covers are connected to the ends of the two corresponding outer layers in a sealed mode at the same time and face openings of the corresponding force-induced discoloration layers; and a camera for shooting the corresponding force-induced discoloration layer is mounted in each elastic sealing cover. By means of the technical scheme, the technical problem that in the prior art, a force-induced discoloration layer is prone to being polluted by external light, water vapor and dust and loses functions, and real-time on-line monitoring cannot be achieved can be solved.

Description

Technical Field

[0001] This invention relates to the field of thermoplastic pipe technology, and in particular to a thermoplastic pipe deformation indicator structure and a thermoplastic pipe. Background Technology

[0002] Thermoplastic pipes are widely used in many fields due to their excellent plasticity, corrosion resistance, and processing performance. However, in actual use, thermoplastic pipes may deform due to excessive bending or torsional forces. When the deformation exceeds a certain limit, it will affect the normal use of the pipeline and even lead to serious problems such as pipeline rupture and leakage. Currently, the deformation monitoring of thermoplastic pipes mainly relies on regular manual inspections or external monitoring equipment. Manual inspections are inefficient and difficult to detect subtle deformations in real time; while external monitoring equipment is often expensive and complex to install and maintain, failing to meet the need for convenient, real-time, and low-cost monitoring of pipeline deformation. Therefore, developing a thermoplastic pipe that can intuitively indicate excessive deformation is of significant practical importance. Chinese Patent Publication No. CN114659685A discloses a method for detecting pipeline assembly stress. The method includes: obtaining a colorimetric card containing the colors of a mechanochromic film under different tensile forces through a tensile test; fixing the mechanochromic film onto the pipeline to be tested; and obtaining the assembly stress on the pipeline by comparing the color of the mechanochromic film on the assembled pipeline with the color on the colorimetric card. This application, by fixing the mechanochromic film onto the pipeline to be tested and observing and comparing the color of the mechanochromic film, allows inspectors to quickly determine the stress of the assembled pipeline. This solves the technical problems of slow speed and complex operation in traditional pipeline stress detection methods, enabling inspectors to quickly judge the pipeline installation quality and avoid quality problems. This detection method can determine the state of pipeline deformation by fixing the mechanochromic film onto the pipeline to be tested and observing and comparing the color of the mechanochromic film. However, since the metronidizer is located on the outer layer, it loses its function due to contamination from external light, moisture, and dust during long-term use, and cannot be monitored online in real time.

[0003] Chinese patent CN213937404U discloses a waterproof device for the outer sheath of a cable joint: it includes two sets of cables and a joint connecting the two sets of cables. An outer sheath is fitted over the joint, with both ends of the outer sheath open and equipped with sealing covers. Two sealing covers are fitted over the two sets of cables, and the sealing covers are conical in shape. Positioning components are fixed to the outer wall of the sealing covers near the cables. A lower annular groove is formed on the outer wall of the outer sheath inside the sealing covers. This completes a three-layer sealing structure, greatly improving its sealing and waterproofing performance. It avoids the failure of conventional single-layer sealing structures, thus preventing the sealing effect from being achieved. When the overall sealing structure fails, the elastic membrane indents inward under the action of external air pressure, allowing workers to more intuitively understand whether the overall sealing structure is effective. When the seal fails, it facilitates timely repairs and prevents water ingress. Although this waterproof device can seal the joint within the outer sheath and sealing covers, it cannot monitor the stress deformation of the joint.

[0004] Chinese patent CN115901483A discloses a method for testing the radial buckling and collapse pressure of thermoplastic pipes used in oil and gas transportation. It involves conducting environmental simulation tests and annular pressure tests on thermoplastic-lined steel pipe samples, enabling the testing of the buckling and collapse resistance of the inner lining layer in full-size thermoplastic-lined steel pipe products. The environmental simulation test maximizes the simulation of the service conditions of full-size composite pipe products under oil and gas transportation environments; temperature, pressure, gas composition, and liquid medium can all be adjusted, and the test samples can be rotated, resulting in more instructive test data. The annular pressure test, through an annular pressure monitoring system, can monitor the law and morphology of the compressive deformation of the inner lining pipe in real time during the annular pressure test, providing effective support for the analysis of the buckling or collapse resistance of the inner lining pipe. This invention can also connect a vacuum pump or pressure cycling test machine to an intermediate connector via a through-hole to study the influence of negative pressure or pressure cycling on the buckling or collapse resistance of the inner lining pipe. Although this test method can test the buckling and collapse resistance of the inner lining of full-size thermoplastic-lined steel pipe products, it cannot be applied to the pipeline installation site to monitor and provide real-time feedback on the stress deformation of the pipeline during use.

[0005] Therefore, there is an urgent need to develop a pipeline deformation indication technology with a more rational structure, stronger environmental adaptability, and real-time online monitoring capabilities to make up for the shortcomings of existing technologies. Summary of the Invention

[0006] This invention provides a thermoplastic tube deformation indicator structure and a thermoplastic tube, which can improve the technical problems in the prior art where the force-induced color-changing layer is located on the outer layer, and loses its function due to pollution from external light, water vapor and dust during long-term use, and cannot be monitored online in real time.

[0007] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: This invention provides a thermoplastic tube deformation indicator structure, comprising: A color-changing coating is used to cover the outside of the pipe body; The outer layer has multiple layers spaced apart along the axial direction of the pipe body, each covering the outside of the mechanochromic layer, and an annular window is formed between two adjacent outer layers. An opaque elastic sealing cover is provided with multiple covers, each corresponding to one of the annular windows. Each elastic sealing cover is simultaneously sealed to the ends of the two corresponding outer layers and opens toward the corresponding mesochromatic layer. Each elastic sealing cover is equipped with a camera for taking pictures of the corresponding mesochromatic layer.

[0008] The beneficial effects of this invention are: by forming an integral whole with multiple outer layers and multiple elastic sealing covers, the methanochromic layer is completely covered, thereby reducing the possibility that the methanochromic layer will lose its function due to pollution from external light, water vapor and dust during long-term use. At the same time, the methanochromic layer can be photographed by a camera installed in the elastic sealing cover, realizing real-time monitoring and information transmission.

[0009] Based on the above technical solution, the present invention can be further improved as follows.

[0010] Furthermore, each of the elastic sealing covers includes two elastic semi-circular clamps and multiple first fasteners. The two elastic semi-circular clamps open towards each other and simultaneously abut against the outer sides of the two adjacent outer layers, and their two ends are sealed to each other to form a ring-shaped structure. The multiple first fasteners are simultaneously connected to the two elastic semi-circular clamps, and the camera is installed inside any of the elastic semi-circular clamps.

[0011] The beneficial effect of adopting the above-mentioned further solution is that two elastic semi-circular clamps surround the outer layer and are secured by the first fastener to ensure a sealing effect between them and the outer layer.

[0012] Furthermore, each of the elastic sealing covers also includes four first sealing layers with a semi-circular structure. The four first sealing layers are grouped in pairs to form an annular sealing layer. The two annular sealing layers respectively cover the outer side of the two adjacent outer layers. The two elastic semi-circular clamps are respectively sealed and covered by the corresponding two first sealing layers. The two ends of the two first sealing layers that are opposite each other along the pipe axis are simultaneously connected to the second sealing layer. The ends of the two elastic semi-circular clamps are sealed and connected by two layers of second sealing layers. Each of the first fasteners passes through the corresponding second sealing layer.

[0013] The beneficial effect of adopting the above-mentioned further solution is that, under the fastening action of the first fastener, the two elastic semi-circular clamps squeeze each other and squeeze inward and outward, thereby forming pressure on the first sealing layer and the second sealing layer to improve the sealing effect.

[0014] Furthermore, each of the cameras is equipped with a cable for communication and power supply, and each of the first sealing layers has a through hole, each hole is fitted with a cable sleeve, and the inner side of each cable sleeve is fixedly connected with an elastic layer covering the corresponding cable.

[0015] The beneficial effects of adopting the above-mentioned further solution are: to power each camera through cables, ensuring the real-time shooting operation of the cameras, and to upload the real-time shooting information of the cameras to the control terminal through cables, thereby realizing real-time monitoring, and to ensure the effectiveness and reliability of information transmission through cables.

[0016] Furthermore, each of the two elastic semi-circular clamps includes two supporting arc plates, elastic sealing arc sleeves that are respectively sealed and connected to the outer ends of the two supporting arc plates, and a plurality of second fasteners evenly distributed at both ends of the elastic sealing arc sleeves. Each of the second fasteners is simultaneously connected to the corresponding supporting arc plate, and the inner sides of the two supporting arc plates abut against the outer sides of the two adjacent outer layers.

[0017] The beneficial effect of adopting the above-mentioned further solution is that the elastic sealing arc sleeve is connected to the supporting arc plate through the second fastener, so that the elastic sealing arc sleeve can be removed by unscrewing the second fastener, so that the camera can be installed and tested during the initial installation and testing process.

[0018] Furthermore, both of the elastic semi-circular clamps also include two third sealing layers. The two ends of the elastic sealing arc sleeve are respectively sealed and connected to the two supporting arc plates through the two third sealing layers, and each of the second fasteners passes through the corresponding third sealing layer.

[0019] The beneficial effect of adopting the above-mentioned further solution is that, by using the third sealing layer as a sealing interlayer between the supporting arc plate and the elastic sealing arc sleeve, pressure is applied to the third sealing layer under the tightening of the second fastener, so as to ensure the sealing between the supporting arc plate and the elastic sealing arc sleeve.

[0020] Furthermore, both ends of the elastic sealing arc sleeve are bent inward to form clamping plates, and the two clamping plates are respectively sealed and connected to the opposite sides of the two supporting arc plates.

[0021] The beneficial effect of adopting the above-mentioned further solution is that by using the clamping plate as the outer covering structure of the supporting arc plate, a corresponding third sealing layer is formed, thereby improving the sealing performance and reducing the erosion of the third sealing layer by external impurities.

[0022] Furthermore, an annular groove is provided on the inner side of the elastic sealing cover; a support frame is provided inside the elastic sealing cover, one end of the support frame is adapted to and slidably connected to the annular groove, and the camera is fixedly connected to the other end of the support frame.

[0023] The advantages of adopting the above-mentioned further solution are: the camera can be stably installed by means of a support frame, and during installation, the installation position of the support frame can be changed by sliding the support frame in the annular slot, thereby changing the shooting position of the camera on the megohmmeter layer.

[0024] Furthermore, at least one desiccant box is fixedly connected inside the elastic sealing cover, and the desiccant box is used to store desiccant.

[0025] The beneficial effects of adopting the above-mentioned further solution are: to dry the internal space environment of the elastic sealing cover by using a desiccant, to prevent fogging and mold growth on the camera lens, and to ensure that the reaction and detection of the mechanochromic layer are not affected by humidity, thus ensuring the accuracy and reliability of stress monitoring data.

[0026] The present invention also provides a thermoplastic pipe, including a pipe body and a thermoplastic pipe deformation indicator structure, wherein the force-induced color-changing layer of the thermoplastic pipe deformation indicator structure covers the outside of the pipe body. Attached Figure Description

[0027] Figure 1 This is a structural diagram of the thermoplastic tube of the present invention; Figure 2 For the present invention Figure 2 A magnified view of the local structure; Figure 3 This is a cross-sectional view of the thermoplastic tube of the present invention; Figure 4 For the present invention Figure 3 Enlarged view of section A in the middle; Figure 5 For the present invention Figure 3 Enlarged view of section B; Figure 6 This is a partial exploded view of the elastic sealing cover of the present invention; Figure 7 For the present invention Figure 6 Enlarged view of section C.

[0028] The attached diagram lists the components represented by each number as follows: 1. Pipe body; 2. Mechanochromic layer; 3. Outer layer; 31. Sealing ring groove; 4. Circular window; 5. Elastic sealing cover; 51. Elastic semi-circular clamp; 511. Supporting arc plate; 5111. Extension plate; 5112. Annular groove; 512. Elastic sealing arc sleeve; 5121. Clamping plate; 513. Second fastener; 514. Third sealing layer; 52. First fastener; 53. First sealing layer; 54. Second sealing layer; 6. Camera; 61. Cable; 62. Cable sleeve; 621. Positioning ring block; 63. Elastic layer; 7. Support frame; 71. Screws; 8. Desiccant box. Detailed Implementation

[0029] The principles and features of the present invention are described below. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0030] Example 1 like Figures 1-7 This embodiment provides a thermoplastic tube deformation indicator structure, including: Mechanochromic layer 2, which is used to cover the outside of the pipe body 1; The outer layer 3 has multiple layers spaced along the axial direction of the pipe body 1, all of which cover the outside of the force-sensitive color-changing layer 2, and an annular window 4 is formed between two adjacent outer layers 3. An opaque elastic sealing cover 5 is provided with multiple covers, each corresponding to one of the annular windows 4. Each elastic sealing cover 5 is simultaneously sealed to the ends of the corresponding two outer layers 3 and opens toward the corresponding mesochromatic layer 2. Each elastic sealing cover 5 is equipped with a camera 6 for taking pictures of the corresponding mesochromatic layer 2.

[0031] The beneficial effects of this embodiment are: by forming a whole with multiple outer layers 3 and multiple elastic sealing covers 5, the mesticolor layer 2 is completely covered, thereby reducing the possibility that the mesticolor layer 2 will lose its function due to pollution from external light, water vapor and dust during long-term use. At the same time, the camera 6 installed in the elastic sealing cover 5 is used to take pictures of the mesticolor layer 2, so as to realize real-time monitoring and information transmission.

[0032] When the pipeline deforms, the elastic sealing cover 5 can adapt to the deformation in sync with the pipeline. Simultaneously, the deformation force can be precisely transmitted to the mechanochromic layer 2, which accurately reflects the pipeline deformation. The opaque elastic sealing cover 5 prevents external light from penetrating it and directly hitting the mechanochromic layer 2, thus affecting its performance.

[0033] In this embodiment, each camera 6 is equipped with a lighting lamp and a cable 61 for communication and power supply. The cable 61 passes through the elastic sealing cover 5 and is connected to the control terminal to realize information transmission.

[0034] The mechanochromic layer 2 can be made of liquid crystal-based mechanochromic materials, organic small molecule-based mechanochromic materials, or polymer-based mechanochromic materials. For example, when a liquid crystal-based mechanochromic material is subjected to external force, the orientation of the liquid crystal molecules changes, resulting in a change in the optical properties of the material and exhibiting a color change; when an organic small molecule-based mechanochromic material is subjected to force, the molecular structure undergoes reversible or irreversible changes, thereby causing a color change.

[0035] It should be noted that, as those skilled in the art, various processing methods can be used, such as adhesive bonding, co-extrusion composite molding, sleeve shrinking, or spray coating, to process and cover the outer side of the pipe body 1 with the color-changing layer 2. Specific processing methods are well-known to those skilled in the art and will not be described in detail here.

[0036] The materials of the pipe body 1 and the outer layer 3 are selected according to the usage environment and specific functional requirements of the pipe body. For example, when the pipe body 1 is used to transport corrosive liquids, the pipe body 1 can be made of polytetrafluoroethylene (PTFE), which has excellent corrosion resistance; when it is necessary to improve the mechanical strength of the pipe body 1, the outer layer 3 can be made of glass fiber reinforced thermoplastic.

[0037] In addition, the opaque elastic sealing cover 5 can be made of thermoplastic elastomer materials (such as TPU, TPE / TPR or POE), cross-linked polyolefin materials (such as radiation-crosslinked polyethylene or polyolefin), characteristic rubber materials (such as neoprene rubber, silicone rubber or EPDM rubber), or flexible composite materials (such as a three-layer composite structure with an elastomer (such as the above-mentioned TPU or rubber) as the bonding and buffering layer, a metal foil (such as aluminum foil) as the absolute barrier intermediate layer, and a weather-resistant engineering plastic (such as PA nylon) or rubber as the outer layer). Under normal working conditions, the elastic sealing cover 5 is sealed to the ends of the corresponding two outer layers 3 and is in a pre-tightened state. When the pipe body 1 deforms, the deformation of the pipe body 1 will force the elastic sealing cover 5 to stretch or compress accordingly, undergoing adaptive deformation and always maintaining a seal. This prevents the force-induced discoloration layer 2 from being exposed and losing its function due to pollution from external light, water vapor, and dust during long-term use, and also prevents the inability to monitor it in real time.

[0038] Example 2 like Figures 2-6 Based on embodiment 1, each elastic sealing cover 5 includes two elastic semi-circular clamps 51 and multiple first fasteners 52. The two elastic semi-circular clamps 51 open towards each other and simultaneously abut against the outer sides of two adjacent outer layers 3, and their two ends are sealed to each other to form a ring structure. Multiple first fasteners 52 are simultaneously connected to the two elastic semi-circular clamps 51, and the camera 6 is installed in any elastic semi-circular clamp 51.

[0039] The beneficial effect of adopting the preferred solution in the above embodiments is that two semi-circular clamps 51 with good elasticity are tightly wrapped around the outside of the outer structure 3 and are firmly fastened by using the first fastener 52, thereby ensuring that the two elastic semi-circular clamps 51 and the outer structure 3 can form an effective sealing effect.

[0040] During installation, the operator only needs to reliably connect the two elastic semi-circular clamps 51 with the first fastener 52 to quickly and easily complete the entire installation process, greatly improving installation efficiency and convenience.

[0041] The first fastener 52 can be a bolt. Furthermore, the number of the first fasteners 52 can be four, five, six, seven, or eight, etc.

[0042] Example 3 like Figures 2-6 Based on embodiments 1 and 2, each elastic sealing cover 5 further includes four first sealing layers 53 with a semi-circular structure. The four first sealing layers 53 are grouped in pairs to form an annular sealing layer. The two annular sealing layers respectively cover the outer sides of two adjacent outer layers 3. The two elastic semi-circular clamps 51 are respectively sealed and covered by the corresponding two first sealing layers 53. The two ends of the two first sealing layers 53 that are opposite each other along the pipe axis are simultaneously connected to the second sealing layer 54. The ends of the two elastic semi-circular clamps 51 are sealed and connected by two layers of second sealing layers 54. Each first fastener 52 passes through the corresponding second sealing layer 54.

[0043] The beneficial effect of adopting the preferred scheme in the above embodiments is that, under the strong fastening action of the first fastener 52, the two elastic semi-circular clamps 51 are tightly fitted together, generating a significant compressive force between them. Simultaneously, this compressive force is not limited to the semi-circular clamps 51 themselves but is further transmitted inward, applying a uniform and powerful compressive force to the outer layer structure 3. Through this combined internal and external compressive mechanism, a dual pressure state is effectively formed on the first sealing layer 53 and the second sealing layer 54. This pressure method improves the tightness and fit of the sealing layers, thereby enhancing the overall sealing effect and ensuring the reliability and stability of the system.

[0044] In this structure, both the first sealing layer 53 and the second sealing layer 54 possess excellent sealing performance. They can be manufactured from a variety of high-quality materials. Specifically, both sealing layers can be made from materials with excellent elasticity and durability, such as rubber or silicone. These materials not only effectively prevent leakage or penetration of gases, liquids, or solids, but also maintain a stable sealing effect under various environmental conditions, thereby ensuring the safety and reliability of the overall device.

[0045] Example 4 like Figure 3 and Figure 5 Based on embodiments 1-3, each camera 6 is equipped with a cable 61 for communication and power supply, and each first sealing layer 53 is provided with a through hole, each hole is fitted with a cable sleeve 62, and the inner side of each cable sleeve 62 is fixedly connected with an elastic layer 63 covering the corresponding cable 61.

[0046] The beneficial effect of adopting the preferred solution in the above embodiments is that, by using cable 61, a stable power supply can be effectively provided to each camera 6, ensuring that these cameras 6 can continuously perform real-time shooting operations, so as to ensure that the cameras 6 capture the real-time changes of the mestizochromic layer 2. At the same time, cable 61 also undertakes the important task of quickly uploading the images and data information captured by the cameras 6 in real time to the control terminal, so that the control terminal can receive this information in real time and perform real-time monitoring and analysis.

[0047] This approach not only enables real-time information transmission but also significantly improves the effectiveness and reliability of information delivery, ensuring data integrity and accuracy and providing a solid guarantee for the stable operation of the entire system.

[0048] In this embodiment, the sleeve 62 is wrapped around the outside of the cable 61 by the elastic layer 63. The elastic layer 63 ensures the sealing between the sleeve 62 and the cable 61, while the sleeve 62 supports the cable 61, reducing the possibility of the cable 61 deforming when passing through the first sealing layer 53, thereby ensuring the long-term reliability of information transmission.

[0049] The sleeve 62 can be made of hard rubber or stainless steel. The elastic layer 63 can be made of elastic soft rubber.

[0050] As a parallel solution in this embodiment, each camera 6 can also transmit information wirelessly.

[0051] It should be noted that the information transmission between the control terminal and the camera 6 is existing technology and a conventional technical means in this field. It can be implemented without creative effort and will not be elaborated here.

[0052] Based on the above embodiment, each wire hole has a positioning ring groove in its wall, and each wire sleeve 62 has a positioning ring block 621 that fits and fills the corresponding positioning ring groove fixedly connected to its outer side. By embedding the positioning ring block 621 in the positioning ring groove, the wire sleeve 62 is positioned and installed, preventing the wire sleeve 62 from falling out of the first sealing layer 53. At the same time, the positioning ring block 621 forms a partition and seal, which can reduce the entry of external impurities into the elastic sealing cover 5.

[0053] Specifically, the number of positioning ring grooves can be one, two, three, or four, etc., but only one is shown in the figure. When there are multiple positioning ring grooves, the multiple positioning ring grooves are set at intervals, and multiple positioning ring blocks 621 are set accordingly to form multiple partitions and sealing structures.

[0054] The assembly and molding methods of the first sealing layer 53, the wire sleeve 62, and the elastic layer 63 are common and conventional, and will not be elaborated further. Those skilled in the art can choose any combination according to their needs or convenience. For example, the first sealing layer 53 can be integrally injection molded, with a wire hole with a positioning ring groove directly formed at its preset wire hole position through a mold core structure; the wire sleeve 62 is made of an elastic material compatible with the sealing layer (such as TPU or soft PVC) and injection molded separately, with a positioning ring block 621 simultaneously formed on its outer side. During assembly, the wire sleeve 62 is coated with adhesive and pressed into the wire hole. Mechanical interlocking is achieved through the interference fit between the positioning ring block 621 and the positioning ring groove. Simultaneously, the adhesive fills the microscopic gaps, ensuring that the wire sleeve 62 and the first sealing layer 53 are combined into a sealed whole. Before pressing the wire sleeve 62, the elastic layer 63 is adhered inside the wire sleeve 62. Of course, as a conventional technical means in this field, it is not limited to beveling the sides of the wire hole and the sides of the positioning ring block 621 to form a bevel, so as to provide guidance during the installation process.

[0055] Based on the above embodiments, each outer layer 3 has a sealing ring groove 31 at its end, and the corresponding first sealing layer 53 is adapted to and filled into the corresponding sealing ring groove 31. The sealing ring groove 31 serves as a positioning groove to position and install the first sealing layer 53, ensuring that the first sealing layer 53 is quickly installed in place.

[0056] As one of the parallel structures of the sealing ring groove 31, it opens in the radial direction toward the outer layer 3 and extends axially through one end of the outer layer 3, forming a structure with an "L"-shaped opening in the axial cross section.

[0057] As the second parallel structure of the sealing ring groove 31, it only opens in the radial direction towards the outer layer 3, forming a structure with a "U"-shaped opening in the axial cross section.

[0058] Example 5 like Figures 2-6Based on embodiments 1-4, each of the two elastic semi-circular clamps 51 includes two supporting arc plates 511, elastic sealing arc sleeves 512 that are respectively sealed and connected to the outer edges of the two supporting arc plates 511, and multiple second fasteners 513 evenly distributed at both ends of the elastic sealing arc sleeves 512. Each second fastener 513 is simultaneously connected to the corresponding supporting arc plate 511, and the inner sides of the two supporting arc plates 511 respectively abut against the outer sides of the two adjacent outer layers 3.

[0059] The beneficial effect of adopting the preferred solution in the above embodiments is that the elastic sealing arc sleeve 512 is firmly connected to the supporting arc plate 511 through the second fastener 513, ensuring a tight fit between the two. This connection method allows the elastic sealing arc sleeve 512 to be easily disassembled when needed by unscrewing the second fastener 513. This facilitates the installation and testing of the camera 6 during the initial installation stage and subsequent testing, ensuring the normal operation and effectiveness of the camera 6. This flexible connection and disassembly mechanism not only improves the convenience of installation and testing but also greatly enhances the maintenance efficiency of the equipment.

[0060] During installation, the supporting arc plate 511 can be wrapped and fixed to the outside of the outer layer 3 using the first fastener 52, and then the elastic sealing arc sleeve 512 can be fixedly connected to the supporting arc plate 511 using the second fastener 513.

[0061] The second fastener 513 can be a screw.

[0062] Example 6 like Figure 3 and Figure 4 Based on embodiments 1-5, each of the two elastic semi-circular clamps 51 further includes two third sealing layers 514. The two ends of the elastic sealing arc sleeve 512 are respectively sealed and connected to the two supporting arc plates 511 through the two third sealing layers 514, and each second fastener 513 passes through the corresponding third sealing layer 514.

[0063] The beneficial effect of the preferred embodiment described above is that by using a third sealing layer 514 as a key sealing interlayer between the supporting arc plate 511 and the elastic sealing arc sleeve 512, and under the strong fastening action of the second fastener 513, appropriate pressure is applied to the third sealing layer 514, thereby ensuring the effective sealing performance between the supporting arc plate 511 and the elastic sealing arc sleeve 512. Utilizing the excellent sealing characteristics of the third sealing layer 514, and through the fastening force of the second fastener 513, the third sealing layer 514 can be tightly fitted between the supporting arc plate 511 and the elastic sealing arc sleeve 512, improving the reliability and stability of the overall sealing structure and preventing any potential leakage problems.

[0064] The third sealing layer 514 can be supported by rubber or silicone materials.

[0065] Based on the above embodiment, the inner ends of the two supporting arc plates 511 are fixedly connected with extension plates 5111, the two extension plates 5111 extend in opposite directions and are pressed against the corresponding first sealing layer 53.

[0066] The extension plate 5111 increases the contact area between the extension plate and the first sealing layer 53, ensuring the sealing performance of the installation.

[0067] Based on the above embodiment, the end of the extension plate 5111 is bent upward toward the clamping plate 5121 to form a clamping block, and the second sealing layer 54 is clamped between the two clamping blocks. Bolt holes that communicate with each other are opened through the clamping blocks and the second sealing layer 54 so that the corresponding bolts can pass through, thereby fastening the two clamping blocks. This allows the fastened clamping blocks to apply pressure to the second sealing layer 54, thereby improving the sealing performance.

[0068] Example 7 like Figure 3 and Figure 4 Based on embodiments 1-6, both ends of the elastic sealing arc sleeve 512 are bent inward to form clamping plates 5121, and the two clamping plates 5121 are respectively sealed and connected to the opposite sides of the two supporting arc plates 511.

[0069] The beneficial effect of adopting the preferred solution in the above embodiments is that by using the clamping plate 5121 as the outer covering structure of the supporting arc plate 511, the corresponding third sealing layer 514 is covered, thereby improving the sealing performance and reducing the erosion of the third sealing layer 514 by external impurities.

[0070] Based on the above embodiment, two clamping plates 5121 are integrally formed at both ends of the elastic sealing arc sleeve 512, and an opening is formed between two adjacent clamping plates 5121 for the simultaneous insertion of the supporting arc plate 511 and the third sealing layer 514, so as to form an inner and outer clamping and sealing effect through the two adjacent clamping plates 5121, thereby improving the sealing effect and installation stability.

[0071] Example 8 like Figures 3-7 Based on embodiments 1-7, an annular groove 5112 is provided on the inner side of the elastic sealing cover 5; a support frame 7 is provided inside the elastic sealing cover 5, one end of the support frame 7 is adapted to and slidably connected to the annular groove 5112, and the camera 6 is fixedly connected to the other end of the support frame 7.

[0072] The beneficial effect of adopting the preferred solution in the above embodiments is that the camera 6 can be stably installed by using the support frame 7. During installation, the support frame 7 can slide within the annular groove 5112, allowing the user to flexibly adjust the specific installation position of the support frame 7 as needed. Through this sliding adjustment, the shooting position of the camera 6 relative to the force-sensitive color-changing layer 2 can be effectively changed, thereby meeting the needs of different shooting angles and perspectives and ensuring that the shooting effect reaches the best state. This flexible installation method not only improves the convenience of use but also greatly enhances the flexibility and adaptability during the shooting process.

[0073] Specifically, the cross-section of the annular groove 5112 can be a dovetail groove or a stepped groove, and the annular groove 5112 is formed on the supporting arc plate 511 to prevent the annular groove 5112 from detaching from the supporting arc plate 511.

[0074] As those skilled in the art can, according to the above technical solution, multiple support frames 7 can be set inside each elastic sealing cover 5, and at least one camera 6 can be fixedly installed on each support frame 7, specifically one, two or three cameras 6, so as to realize circumferential position shooting of the same segment of the force-sensitive color-changing layer 2 inside each elastic sealing cover 5.

[0075] Based on the above embodiment, one end of the support frame 7 is threaded with a screw 71, which abuts against the bottom of the annular groove 5112. The combined action of the screw 71 abutting against the support arc plate 511 and the support frame 7 acting in opposite directions against the wall of the annular groove 5112 fixes the position of the moved and adjusted support frame 7.

[0076] Example 9 like Figure 3 Based on Examples 1-8, at least one desiccant box 8 is also fixedly connected inside the elastic sealing cover 5, and the desiccant box 8 is used to store desiccant.

[0077] The beneficial effect of adopting the preferred solution in the above embodiments is that the internal space environment of the elastic sealing cover 5 is dried by the desiccant, which prevents fogging and mold growth on the lens of the camera 6 and ensures the imaging quality of the camera 6. At the same time, it ensures that the reaction and detection of the force-sensitive color-changing layer 2 are not affected by humidity, thus ensuring the accuracy and reliability of stress monitoring data.

[0078] Based on the above embodiments, after long-term use, those skilled in the art can replace the desiccant in the desiccant box 8 at the corresponding position by removing the elastic sealing arc sleeve 512 at the corresponding position.

[0079] Example 10 like Figures 1-7This embodiment also provides a thermoplastic pipe, including a pipe body 1 and a thermoplastic pipe deformation indicator structure as described in Embodiments 1-9, wherein a force-induced color-changing layer 2 of the thermoplastic pipe deformation indicator structure is covered on the outside of the pipe body 1.

[0080] The beneficial effect of adopting the preferred solution in the above embodiments is that by using the force-sensitive color-changing layer 2 as the first protective layer and "deformation monitoring layer" covering the pipe body 1, and using the outer layer 3 and the elastic sealing cover 5 together as the second protective layer, protection is formed for the force-sensitive color-changing layer 2. Thus, the force-sensitive color-changing layer 2 forms real-time monitoring of the deformation of the pipe body 1, and improves the technical problem in the prior art that the force-sensitive color-changing layer 2 is located on the outer layer and loses its function due to pollution from external light, water vapor and dust during long-term use, and cannot be monitored online in real time.

[0081] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0082] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0083] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0084] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0085] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," 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 present invention. In this specification, the 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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0086] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A thermoplastic pipe deformation indicating structure, characterized by, The utility model relates to a kind of force-induced color layer (2) for coating on the outside of pipeline body (1);Multiple outer layers (3) are arranged axially along pipeline body (1) and are all coated on the outside of the force-induced color layer (2), and annular window (4) is formed between adjacent two outer layers (3);Multiple light-tight elastic sealing covers (5) are provided and correspond to each annular window (4), each elastic sealing cover (5) is simultaneously sealed and connected to the end of corresponding two outer layers (3), and opens to the corresponding force-induced color layer (2), and each elastic sealing cover (5) is mounted with camera (6) for shooting corresponding force-induced color layer (2) in it. Each elastic sealing cover (5) includes two elastic half-round hoops (51) and multiple first fasteners (52), two elastic half-round hoops (51) open towards each other and simultaneously abut the outside of adjacent two outer layers (3), and are sealed and connected to each other at both ends to form a circular ring structure, and multiple first fasteners (52) are simultaneously connected to two elastic half-round hoops (51), and the camera (6) is mounted in any one of the elastic half-round hoops (51). Each elastic sealing cover (5) further includes four first sealing layers (53) in half-round structure, two of the four first sealing layers (53) form a circular ring sealing layer, two circular ring sealing layers are coated on the outside of adjacent two outer layers (3), two elastic half-round hoops (51) are sealed and coated on the outer layer (3) by corresponding two first sealing layers (53), and the ends of two first sealing layers (53) opposite along the pipeline axis are simultaneously connected to second sealing layer (54), and the ends of two elastic half-round hoops (51) are sealed and connected by two second sealing layers (54), and each first fastener (52) penetrates through the corresponding second sealing layer (54). Each camera (6) is provided with a cable (61) for communication and power supply, and each first sealing layer (53) is provided with a wire hole, each wire hole is provided with a wire sleeve (62), and the inner side of each wire sleeve (62) is fixedly connected to the elastic layer (63) coated on the corresponding cable (61).

2. A thermoplastic pipe deformation indicating structure according to claim 1, wherein Two elastic half-round hoops (51) include two support arc plates (511), elastic sealing arc sleeves (512) sealed and connected to the outer edges of two support arc plates (511) at both ends, and multiple second fasteners (513) evenly distributed at both ends of elastic sealing arc sleeves (512), each second fastener (513) is simultaneously connected to the corresponding support arc plate (511), and the inner sides of two support arc plates (511) abut the outside of adjacent two outer layers (3).

3. A thermoplastic pipe deformation indicating structure according to claim 2, wherein ​ 4. A thermoplastic pipe deformation indicating structure according to claim 3, wherein ​ 5. A thermoplastic pipe deformation indicating structure according to claim 2, wherein ​ 6. A thermoplastic pipe deformation indicating structure according to claim 5, wherein Both of the elastic semicircle hoop (51) further comprises two third sealing layers (514), two ends of the elastic sealing arc sleeve (512) are respectively sealed and connected to two support arc plates (511) through two third sealing layers (514), each second fastener (513) passes through the corresponding third sealing layer (514).

7. A thermoplastic pipe deformation indicating structure according to claim 5, wherein Both ends of the elastic sealing arc sleeve (512) are inwardly bent and extended to form clamping plates (5121), and two clamping plates (5121) are respectively sealed and connected to two opposite sides of the two support arc plates (511).

8. A thermoplastic pipe indication structure according to any one of claims 1 to 7, wherein The inner side of the elastic sealing cover (5) is provided with an annular clamping groove (5112); the elastic sealing cover (5) is provided with a support frame (7), one end of the support frame (7) is adapted and slidably connected to the annular clamping groove (5112), and the camera (6) is fixedly connected to the other end of the support frame (7).

9. A thermoplastic pipe indication structure according to any one of claims 1 to 7, wherein At least one desiccant box (8) is further fixedly connected in the elastic sealing cover (5), and the desiccant box (8) is used for storing desiccant.

10. A thermoplastic pipe, characterized by The pipeline body (1) and the thermoplastic pipe deformation indicating structure of any one of claims 1-9, the force-induced color change layer (2) of the thermoplastic pipe deformation indicating structure is wrapped on the outside of the pipeline body (1).

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