A double-layer plastic pipe with good wear and weather resistance

Abstract

This utility model discloses a double-layer plastic pipe with good wear and weather resistance, relating to the field of plastic pipe technology. It includes a first plastic pipe body and a second plastic pipe body, both of which are composed of an inner plastic pipe, a pressure-resistant component, an outer plastic pipe, a wear-resistant ring, and a monitoring component. This utility model, employing the above structure, uses a pressure-resistant component between the inner and outer plastic pipes, fixed with annular reinforcing ribs embedded in the honeycomb support layer's groove. This evenly distributes external pressure to the inner and outer pipes, preventing pipe wall deformation or rupture caused by localized pressure concentration, significantly improving the overall pressure resistance of the pipe. Simultaneously, the composite heat-insulating buffer material filled inside the honeycomb support layer, combined with the ceramic heat-insulating coating applied to the outside of the outer plastic pipe, prevents the medium transported in the inner pipe from freezing in low-temperature environments. The ceramic heat-insulating coating resists outdoor high-temperature exposure and ultraviolet aging, preventing the outer plastic pipe from becoming brittle and cracking.

Description

Technical Field

[0001] This utility model belongs to the field of plastic pipe technology, and specifically relates to a double-layer plastic pipe with good wear resistance and weather resistance. Background Technology

[0002] Plastic pipes are tubular components made primarily of high molecular polymers and processed through extrusion, injection molding, and other processes. They are widely used in fluid transportation, cable protection, and other fields.

[0003] For example, Chinese patent CN217381993U discloses a double-layer plastic tube with good wear and weather resistance, including an inner plastic tube and an outer plastic tube. The inner plastic tube is located inside the outer plastic tube. Multiple wear-resistant rings are fixedly connected to the outer surface of the outer plastic tube. A first connector and a second connector are respectively provided on the two end faces of the inner and outer plastic tubes. The first connector includes a first connecting seat. A mating groove is formed on the outer surface of the first connecting seat. A gasket groove is formed on the inner surface of the mating groove. A sealing gasket is provided in the gasket groove. The second connector includes a second connecting seat.

[0004] The aforementioned patent describes a method that involves setting multiple wear-resistant rings on the outer surface of the plastic outer tube. These rings increase friction with the environment, thus enhancing the performance. The outer plastic tube also protects the inner plastic tube, improving the safety of the device. However, some shortcomings still exist and require improvement. Existing weather-resistant designs rely solely on double-layer gap insulation, which is prone to freezing in low-temperature environments. Furthermore, the overall compressive strength is low, resulting in a short service life. In addition, existing plastic tubes lack real-time monitoring capabilities. When the inner tube becomes thinner due to media erosion, it cannot be detected in time, requiring regular manual inspections to troubleshoot the problem. Utility Model Content

[0005] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a double-layer plastic pipe with good wear resistance and weather resistance to solve the problems in the background art.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A double-layer plastic pipe with good wear and weather resistance includes a first plastic pipe body and a second plastic pipe body. Both the first and second plastic pipe bodies are composed of an inner plastic tube, a pressure-resistant component, an outer plastic tube, a wear-resistant ring, and a monitoring component. The pressure-resistant component is fixedly connected between the inner and outer plastic tubes. The wear-resistant ring is fixedly connected to the outside of the outer plastic tube. A first connector is fixedly connected to one side of the first plastic pipe body, and a second connector is fixedly connected to one side of the second plastic pipe body. The first connector and the second connector are connected. The outer side of the outer plastic tube is coated with a ceramic heat-insulating coating, and the wear-resistant ring is fixedly connected to the outside of the ceramic heat-insulating coating.

[0007] As a preferred technical solution, the pressure-resistant component includes an annular reinforcing rib, which is fixedly connected between the inner plastic tube and the outer plastic tube. A honeycomb support layer is fixedly connected to the outer side of the annular reinforcing rib, and the inner side of the honeycomb support layer is filled with a composite heat-insulating and buffering material. An embedding groove is formed inside the honeycomb support layer, and the annular reinforcing rib is fitted and connected to the embedding groove.

[0008] As a preferred technical solution, the monitoring component includes a sensor network, which is fixedly connected to the inner sidewalls of the first and second plastic tube bodies. The outer surface of the sensor network is coated with an insulating and wear-resistant coating, and a miniature signal interface is fixedly connected to one side of both the first and second connectors.

[0009] As a preferred technical solution, a mating groove is provided on one side of the first connector, and a mating ring is fixedly connected to one side of the second connector, wherein the mating ring fits and abuts against the mating groove.

[0010] As a preferred technical solution, a positioning hole is provided on one side of the docking ring, and a positioning post is fixedly connected inside the docking groove, with the positioning post being movably connected to the positioning hole.

[0011] In summary, the present invention has the following main advantages: First, this utility model, by fixing the pressure-resistant component between the inner and outer plastic tubes with annular reinforcing ribs attached to the embedded groove of the honeycomb support layer, can evenly distribute external pressure to the inner and outer tubes, avoiding tube wall deformation or rupture caused by local pressure concentration, and greatly improving the overall pressure resistance of the pipe. At the same time, the composite heat insulation buffer material filled on the inner side of the honeycomb support layer, together with the ceramic heat insulation coating applied to the outer side of the outer plastic tube, prevents the medium transported in the inner tube from freezing in low-temperature environments. The ceramic heat insulation coating can resist outdoor high temperature exposure and ultraviolet aging, and prevent the plastic outer tube from becoming brittle and cracking. Secondly, this utility model, by setting up a monitoring component and installing a sensor network on the inner wall of the pipe, can detect the wear changes of the inner pipe caused by the scouring of the medium in real time. When the inner pipe becomes thinner, the resistance value of the sensor network changes accordingly. Moreover, the insulating and wear-resistant coating on the outer surface of the sensor network can avoid direct contact with the transported medium, prevent the sensor network from being corroded and damaged, and ensure monitoring stability. The miniature signal interface can be connected to an external Internet of Things module to transmit the monitoring data of the sensor network to the backend in real time. Staff can remotely obtain the wear status of the inner pipe without the need for regular manual inspections. Once an abnormality occurs, maintenance measures can be taken in time to avoid medium leakage accidents caused by inner pipe damage, reduce maintenance labor costs, and at the same time reduce resource waste and environmental risks caused by leakage. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a top view of the structure of this utility model; Figure 3 This is a schematic diagram of the connection structure of the first or second plastic tube body of this utility model; Figure 4 This is a utility model Figure 3 A magnified structural diagram at point A.

[0013] Reference numerals: 1. First plastic tube body; 2. Second plastic tube body; 3. Inner plastic tube; 4. Outer plastic tube; 5. Wear-resistant ring; 6. Pressure-resistant component; 61. Annular reinforcing rib; 62. Honeycomb support layer; 63. Composite heat-insulating buffer material; 64. Embedded groove; 7. Ceramic heat-insulating coating; 8. Monitoring component; 81. Sensor network; 82. Insulating wear-resistant coating; 83. Miniature signal interface; 9. First connector; 91. Docking groove; 92. Positioning post; 10. Second connector; 101. Docking ring; 102. Positioning hole. Detailed Implementation

[0014] Example refer to Figures 1 to 4 This embodiment describes a double-layer plastic pipe with good wear and weather resistance, comprising a first plastic pipe body 1 and a second plastic pipe body 2. Both the first plastic pipe body 1 and the second plastic pipe body 2 are composed of an inner plastic pipe 3, a pressure-resistant component 6, an outer plastic pipe 4, a wear-resistant ring 5, and a monitoring component 8. The pressure-resistant component 6 is fixedly connected between the inner plastic pipe 3 and the outer plastic pipe 4. The wear-resistant ring 5 is fixedly connected to the outside of the outer plastic pipe 4. A first connector 9 is fixedly connected to one side of the first plastic pipe body 1, and a second connector 10 is fixedly connected to one side of the second plastic pipe body 2. The first connector 9 and the second connector 10 are connected. The outer side of the outer plastic pipe 4 is coated with a ceramic heat-insulating coating 7, and the wear-resistant ring 5 is fixedly connected to the outside of the ceramic heat-insulating coating 7.

[0015] refer to Figure 3-4The pressure-resistant component 6 includes annular reinforcing ribs 61, which are fixedly connected between the inner plastic tube 3 and the outer plastic tube 4. A honeycomb support layer 62 is fixedly connected to the outer side of the annular reinforcing ribs 61, and a composite heat-insulating buffer material 63 is filled inside the honeycomb support layer 62. The composite heat-insulating buffer material 63 is a mixture of aerogel particles and butyl rubber. An embedding groove 64 is provided inside the honeycomb support layer 62, and the annular reinforcing ribs 61 are fitted into the embedding groove 64. By setting the pressure-resistant component 6, the annular reinforcing ribs 61 and the honeycomb support layer 62 can disperse external forces to the inner plastic tube 3 and the outer plastic tube 4, avoiding tube wall deformation or rupture caused by local pressure concentration. Compared with a double-layer tube without the pressure-resistant component 6, the overall pressure resistance of the tube body is greatly improved. The composite heat-insulating buffer material 63 filled inside the honeycomb support layer 62 can block the temperature difference between the inside and outside of the tube and prevent the medium transported in the inner tube from freezing in low-temperature environments.

[0016] refer to Figure 1 and Figure 3 The monitoring component 8 includes a sensor network 81, which is fixedly connected to the inner wall of the first plastic pipe body 1 and the second plastic pipe body 2. The outer surface of the sensor network 81 is coated with an insulating and wear-resistant coating 82. A miniature signal interface 83 is fixedly connected to one side of the first connector 9 and the second connector 10. The sensor network 81 is connected to the interface, and the interface can be connected to an external Internet of Things (IoT) module. By setting up the monitoring component 8, when in use, the miniature signal interface 83 is connected to an external IoT module. The IoT module is connected to the background monitoring system. The sensor network 81 collects wear data of the inner wall of the pipe in real time and transmits it to the background through the miniature signal interface 83 and the IoT module. The staff can check the status of the pipe through the background system. Compared with traditional manual periodic inspections, there is no need for staff to conduct on-site inspections, and potential pipe faults can be detected in time. The insulating and wear-resistant coating 82 on the outer surface of the sensor network 81 can prevent the conveying medium from directly contacting the sensor network 81, preventing the sensor network 81 from being corroded and damaged, and reducing the wear of the sensor network 81 caused by the scouring of the medium, ensuring the long-term stable operation of the monitoring component 8.

[0017] refer to Figure 1-2The first connector 9 has a mating groove 91 on one side, and the second connector 10 has a mating ring 101 fixedly connected to one side. The mating ring 101 fits and abuts against the mating groove 91. The mating ring 101 has a positioning hole 102 on one side, and a positioning post 92 is fixedly connected inside the mating groove 91. The positioning post 92 is movably connected to the positioning hole 102. During assembly, the worker first aligns the positioning hole 102 of the mating ring 101 with the positioning post 92 of the mating groove 91, and then pushes the pipe to make the mating ring 101 embed into the mating groove 91. At this time, the positioning post 92 is simultaneously inserted into the positioning hole 102 until the mating ring 101 fits and abuts against the mating groove 91, and the positioning post 92 completely penetrates the positioning hole 102, thus completing the positioning and fixing of the connector.

[0018] Operating principle and advantages: Next, the pipes are spliced. The worker aligns the mating groove 91 of the first connector 9 with the mating ring 101 of the second connector 10, aligning the positioning hole 102 of the mating ring 101 with the positioning post 92 of the mating groove 91. The pipe is pushed so that the mating ring 101 is inserted into the mating groove 91 and the positioning post 92 is inserted into the positioning hole 102, until the two are in contact, completing the connection. The annular reinforcing ribs 61 and honeycomb support layer 62 inside the first and second plastic pipe bodies 1 and 2, respectively, can distribute external forces to the inner plastic pipe 3 and outer plastic pipe 4, avoiding pipe wall deformation or rupture caused by localized pressure concentration. Compared to pipes without pressure resistance... The double-layered tube of component 6 significantly improves the overall compressive strength of the tube body. The composite heat-insulating buffer material 63 filled inside the honeycomb support layer 62 can block the transmission of temperature difference between the inside and outside of the tube and prevent the medium transported in the inner tube from freezing in low-temperature environments. The ceramic heat-insulating coating 7 can resist outdoor high temperature exposure and ultraviolet aging, and prevent the plastic outer tube from becoming brittle and cracking. The sensor net 81 installed on the inner wall of the tube can detect the wear changes of the inner tube caused by the scouring of the medium in real time. When the inner tube becomes thinner, the resistance value of the sensor net 81 changes accordingly. Moreover, the insulating and wear-resistant coating 82 on the outer surface of the sensor net 81 can avoid direct contact with the transported medium, prevent the sensor net 81 from being corroded and damaged, and ensure the stability of monitoring.

Claims

1. A double-layer plastic pipe with good wear resistance and weather resistance, comprising a first plastic pipe body (1) and a second plastic pipe body (2), characterized in that: The first plastic tube body (1) and the second plastic tube body (2) are both composed of a plastic inner tube (3), a pressure-resistant component (6), a plastic outer tube (4), a wear-resistant ring (5), and a monitoring component (8). The pressure-resistant component (6) is fixedly connected between the plastic inner tube (3) and the plastic outer tube (4). The wear-resistant ring (5) is fixedly connected to the outside of the plastic outer tube (4). A first connector (9) is fixedly connected to one side of the first plastic tube body (1), and a second connector (10) is fixedly connected to one side of the second plastic tube body (2). The first connector (9) and the second connector (10) are connected. A ceramic heat-insulating coating (7) is coated on the outside of the plastic outer tube (4), and the wear-resistant ring (5) is fixedly connected to the outside of the ceramic heat-insulating coating (7).

2. The double-layer plastic pipe with good wear resistance and weather resistance according to claim 1, characterized in that: The pressure-resistant component (6) includes an annular reinforcing rib (61), which is fixedly connected between the inner plastic tube (3) and the outer plastic tube (4). A honeycomb support layer (62) is fixedly connected to the outer side of the annular reinforcing rib (61), and the inner side of the honeycomb support layer (62) is filled with composite heat insulation buffer material (63).

3. The double-layer plastic pipe with good wear resistance and weather resistance according to claim 2, characterized in that: The honeycomb support layer (62) has an embedded groove (64) inside, and the annular reinforcing rib (61) is attached to the embedded groove (64).

4. The double-layer plastic pipe with good wear resistance and weather resistance according to claim 1, characterized in that: The monitoring component (8) includes a sensor network (81), which is fixedly connected to the inner sidewalls of the first plastic tube body (1) and the second plastic tube body (2). The outer surface of the sensor network (81) is coated with an insulating and wear-resistant coating (82). A miniature signal interface (83) is fixedly connected to one side of the first connector (9) and the second connector (10).

5. The double-layer plastic pipe with good wear resistance and weather resistance according to claim 1, characterized in that: The first connector (9) has a mating groove (91) on one side, and the second connector (10) has a mating ring (101) fixedly connected to one side, and the mating ring (101) fits and abuts against the mating groove (91).

6. The double-layer plastic pipe with good wear resistance and weather resistance according to claim 5, characterized in that: A positioning hole (102) is provided on one side of the docking ring (101), and a positioning post (92) is fixedly connected inside the docking groove (91). The positioning post (92) is movably connected to the positioning hole (102).

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