Hpvcpower pipe with built-in cable fixing structure

Abstract

The utility model discloses HPVC power tube of built -in cable fixed structure relates to power tube technical field, and its technical key points include pipe body, cable fixed structure and support structure, cable fixed structure sets up in the inner wall of pipe body, support structure sets up in the inside of pipe body, cable fixed structure includes a plurality of elastic fixed clamping piece that distributes evenly along the circumference direction of pipe body inner wall, support structure includes a plurality of annular support rib that sets up evenly along the length direction of pipe body, and the clearance is reserved between adjacent annular support rib, and the clearance is filled with foam buffer layer. Technical effect is through setting up cable fixed structure, ensures that cable is always in stable position, reduces the abrasion of outer skin caused by cable shaking and power pipe inner wall friction, through setting up support structure, when power pipe suffers external impact, can prevent power pipe deformation, protects internal cable, prolongs the service life of cable.

Description

Technical Field

[0001] This utility model relates to the field of power pipe technology, specifically to an HPVC power pipe with a built-in cable fixing structure. Background Technology

[0002] Electrical conduits are commonly made by hot-dip plastic coating of PE (modified polyethylene) or internal and external coating of epoxy resin, offering excellent corrosion resistance. The coating itself also provides good electrical insulation, preventing electrolytic corrosion. They have low water absorption, high mechanical strength, and a low coefficient of friction, enabling long-term use. Furthermore, they effectively prevent damage from plant roots and soil stress.

[0003] When existing power conduits protect cables, the cables running inside the conduits lack securing measures. When the cables sway, they frequently rub against the inner wall of the conduits, causing damage to the cable sheath. Furthermore, when the conduits are subjected to external impacts, the internal cables are easily damaged, affecting their service life.

[0004] Therefore, we propose an HPVC power conduit with a built-in cable fixing structure. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides an HPVC power pipe with a built-in cable fixing structure, which solves the problems of lack of fixing measures for cables running inside the power pipe, frequent friction between the cable and the inner wall of the power pipe when the cable shakes, resulting in damage to the cable sheath, and easy impact on the internal cable when the power pipe is subjected to external impact, affecting the cable's service life.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: an HPVC power pipe with a built-in cable fixing structure, comprising a pipe body, a cable fixing structure, and a support structure, wherein the cable fixing structure is disposed on the inner wall of the pipe body, and the support structure is disposed inside the pipe body;

[0009] The cable fixing structure includes several elastic fixing clips evenly distributed along the circumferential direction of the inner wall of the pipe, and the support structure includes several annular support ribs evenly arranged along the length of the pipe, with gaps reserved between adjacent annular support ribs, and the gaps are filled with foam buffer layers.

[0010] By adopting the above technical solution and setting up a cable fixing structure, the elastic fixing clips tightly hold the cable with their own elasticity, preventing the cable from shifting or shaking inside the power conduit. During the laying of the power conduit and subsequent use, changes in the external environment (such as ground vibration) may cause the cable to move. The elastic fixing clips can effectively avoid such situations, ensuring that the cable is always in a stable position and reducing wear on the outer sheath caused by the cable shaking and friction with the inner wall of the power conduit. By setting up a support structure, the annular support ribs provide strong radial support for the power conduit. When the power conduit is subjected to external pressure, the annular support ribs can disperse the pressure, prevent the power conduit from deforming, and protect the internal cables. In addition, the annular support ribs also enhance the overall structural strength of the power conduit, enabling it to maintain a stable shape and performance in complex construction environments and during long-term use. When the power conduit is subjected to external impact, the foam buffer layer can effectively buffer the impact force, preventing the inner cable from being damaged by direct impact and extending the service life of the cable.

[0011] Preferably, the tube body is made of high-polymerization-degree polyvinyl chloride.

[0012] By adopting the above technical solution as the main structure of the power conduit, it can prevent external moisture and corrosive substances from penetrating the inside of the power conduit, protecting the internal cables and supporting structure.

[0013] Preferably, the elastic fixing clip is made of silicone rubber.

[0014] By adopting the above technical solution, silicone rubber has good flexibility, can adapt to the fixing requirements of cables of different specifications, and is not easy to damage the cable sheath.

[0015] Preferably, the inner wall of the tube is provided with an insulating layer, which is cross-linked polyethylene.

[0016] By adopting the above technical solution, the cable is isolated from other parts of the power conduit, preventing electromagnetic interference that may exist outside the power conduit from affecting the normal transmission of the cable, while avoiding damage to other structures of the power conduit by the cable current, thus ensuring the safety and stability of power transmission.

[0017] Preferably, the annular support rib is a high-strength glass fiber reinforced HPVC composite material.

[0018] By adopting the above technical solution, the addition of glass fiber significantly improves the strength and rigidity of the material, enabling it to withstand greater external forces. At the same time, since the main material is still HPVC, it retains the advantages of HPVC material such as corrosion resistance and chemical resistance.

[0019] Preferably, the foam buffer layer is polyurethane foam.

[0020] By adopting the above technical solution, when the power pipe is subjected to external impact, the foam buffer layer can effectively buffer the impact force and prevent the inner cable from being damaged by direct impact. At the same time, the foam buffer layer also has a certain heat insulation performance, which can reduce the impact of external temperature changes on the cable and create a relatively stable working environment for the cable.

[0021] Preferably, the outer wall of the pipe is provided with a wear-resistant layer, which is high-density polyethylene.

[0022] By adopting the above technical solution, the outermost layer of the power conduit is in direct contact with the external environment, which can resist mechanical damage such as scratches and collisions that may be encountered during construction, thus ensuring the integrity and service life of the power conduit.

[0023] (III) Beneficial Effects

[0024] Compared with the prior art, the present invention provides a method with the following beneficial effects:

[0025] 1. This utility model, by setting up a cable fixing structure, uses elastic fixing clips to tightly hold the cable with its own elasticity, preventing the cable from shifting or shaking inside the power conduit. During the laying of the power conduit and subsequent use, changes in the external environment may cause the cable to move. The elastic fixing clips can effectively avoid such situations, ensuring that the cable is always in a stable position, reducing wear on the outer sheath caused by the cable shaking and friction with the inner wall of the power conduit, and improving the service life of the cable.

[0026] 2. This utility model provides strong radial support to the power conduit by setting up a support structure with annular support ribs. When the power conduit is subjected to external pressure, the annular support ribs can disperse the pressure, prevent the power conduit from deforming, and protect the internal cables. In addition, the annular support ribs also enhance the overall structural strength of the power conduit, enabling it to maintain a stable shape and performance in complex construction environments and long-term use. When the power conduit is subjected to external impact, the foam buffer layer can effectively buffer the impact force, prevent the inner cable from being damaged by direct impact, and extend the service life of the cable. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0028] Figure 2 This is a structural diagram illustrating the support structure of this utility model;

[0029] Figure 3 This is a cross-sectional structural diagram of the tube body of this utility model.

[0030] In the picture:

[0031] 1. Pipe body; 11. Insulation layer; 12. Wear-resistant layer;

[0032] 2. Cable fixing structure; 21. Elastic fixing clips;

[0033] 3. Support structure; 31. Circular support ribs; 32. Foam buffer layer. Detailed Implementation

[0034] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0035] This utility model provides a technical solution:

[0036] Please see Figures 1-3 The HPVC power conduit with built-in cable fixing structure includes a pipe body 1, a cable fixing structure 2, and a support structure 3. The pipe body 1 is made of high-polymerization-degree polyvinyl chloride (HPVC). HPVC material has high strength, good corrosion resistance, chemical resistance, and weather resistance. It can resist the erosion of acidic and alkaline substances in the soil and groundwater. By using the high-polymerization-degree polyvinyl chloride pipe body 1 as the main structure of the power conduit, it can prevent external moisture and corrosive substances from penetrating into the power conduit, protecting the internal cables and the support structure 3.

[0037] Specifically, the cable fixing structure 2 is installed on the inner wall of the conduit 1. The cable fixing structure 2 includes several elastic fixing clips 21 evenly distributed along the circumference of the inner wall of the conduit 1. The clips are arc-shaped, with an inner diameter slightly smaller than the outer diameter of the cable. The elastic fixing clips 21 are made of silicone rubber, which has good flexibility and can adapt to the fixing requirements of cables of different specifications. It is also less likely to damage the cable sheath. At the same time, its wear resistance ensures the stability of the fixing structure during long-term use. By setting the cable fixing structure 2, the elastic fixing clips 21 tightly hold the cable with their own elasticity, preventing the cable from shifting or shaking inside the power conduit. During the laying of the power conduit and subsequent use, changes in the external environment (such as ground vibration) may cause the cable to move. The elastic fixing clips 21 can effectively avoid such situations, ensuring that the cable is always in a stable position, reducing the wear of the sheath caused by the cable shaking and friction with the inner wall of the power conduit, and improving the service life of the cable.

[0038] Specifically, the support structure 3 is located inside the pipe body 1. The electrical support structure 3 includes several annular support ribs 31 evenly arranged along the length of the pipe body 1. The annular support ribs are in a continuous ring shape, surrounding the power conduit. The annular support ribs 31 are made of high-strength glass fiber reinforced HPVC composite material. The addition of glass fiber significantly improves the strength and rigidity of the material, enabling it to withstand greater external forces. At the same time, since the main material is still HPVC, it retains the advantages of HPVC material such as corrosion resistance and chemical resistance. Gaps are reserved between adjacent annular support ribs 31, and the gaps are filled with foam buffer layers 32. The foam buffer layer 32 is made of polyurethane foam, which is lightweight and has good cushioning performance. It has good elasticity and energy absorption characteristics, and can absorb energy through its own deformation when subjected to external impact, reducing the impact of the impact force on the internal cables and other structures. By setting the support structure 3, the annular support rib 31 provides strong radial support for the power conduit. When the power conduit is subjected to external compression, the annular support rib 31 can disperse the pressure, prevent the power conduit from deforming, and protect the internal cables. In addition, the annular support rib 31 also enhances the overall structural strength of the power conduit, enabling it to maintain a stable shape and performance in complex construction environments and long-term use. When the power conduit is subjected to external impact, the foam buffer layer 32 can effectively buffer the impact force, preventing the inner cables from being damaged by direct impact. At the same time, the foam buffer layer 32 also has a certain heat insulation performance, which can reduce the impact of external temperature changes on the cables and create a relatively stable working environment for the cables.

[0039] Furthermore, the inner wall of the conduit 1 is provided with an insulation layer 11, which is cross-linked polyethylene. Cross-linked polyethylene has excellent electrical insulation properties, with high insulation resistance, low dielectric constant, and low dielectric loss, effectively preventing current leakage and providing reliable insulation protection for the cable. Simultaneously, it also has good heat resistance and mechanical properties, maintaining stable performance over a wide temperature range. The insulation layer 11 isolates the cable from other parts of the power conduit, preventing electromagnetic interference from the outside of the conduit from affecting normal cable transmission, while also preventing cable current from damaging other structures of the power conduit, ensuring the safety and stability of power transmission.

[0040] Furthermore, the outer wall of the pipe body 1 is provided with a wear-resistant layer 12, which is made of high-density polyethylene. By setting the wear-resistant layer 12 as the outermost layer of the power pipe, it is in direct contact with the external environment and can resist mechanical damage such as scratches and collisions that may be encountered during construction, thus ensuring the integrity and service life of the power pipe.

[0041] In practical use, the working principle of this utility model is as follows:

[0042] Firstly, by using high-polymer polyvinyl chloride (HPVC) pipe body 1, the HPVC material possesses high strength, good corrosion resistance, chemical resistance, and weather resistance. It can resist the erosion of acidic and alkaline substances in the soil and groundwater, serving as the main structure of the power conduit. It can prevent external moisture and corrosive substances from penetrating the interior of the power conduit, protecting the internal cables and supporting structure 3. Simultaneously, the HPVC outer protective layer has a certain degree of hardness and wear resistance, ensuring the integrity and service life of the power conduit.

[0043] By setting up the cable fixing structure 2, the elastic fixing clip 21 tightly holds the cable with its own elasticity, preventing the cable from shifting or shaking inside the power conduit. During the laying of the power conduit and subsequent use, changes in the external environment (such as ground vibration) may cause the cable to move. The elastic fixing clip 21 can effectively avoid such situations, ensuring that the cable is always in a stable position and reducing the wear of the outer sheath caused by the cable shaking and friction with the inner wall of the power conduit.

[0044] By setting the support structure 3, the annular support rib 31 provides strong radial support for the power conduit. When the power conduit is subjected to external pressure, the annular support rib 31 can disperse the pressure, prevent the power conduit from deforming, and protect the internal cables. In addition, the annular support rib 31 also enhances the overall structural strength of the power conduit, enabling it to maintain a stable shape and performance in complex construction environments and long-term use. When the power conduit is subjected to external impact, the foam buffer layer 32 can effectively buffer the impact force and prevent the inner cables from being damaged by direct impact.

[0045] In summary, the HPVC power pipe with built-in cable fixing structure ensures that the cable is always in a stable position by setting the cable fixing structure 2, reducing the wear of the outer sheath caused by the cable shaking and friction with the inner wall of the power pipe. By setting the support structure 3, the power pipe can be prevented from deforming when it is subjected to external impact, protecting the internal cable and extending the service life of the cable.

[0046] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. An HPVC power pipe with a built-in cable fixing structure, comprising a pipe body (1), a cable fixing structure (2), and a support structure (3), characterized in that: The cable fixing structure (2) is installed on the inner wall of the pipe body (1), and the support structure (3) is installed inside the pipe body (1); The cable fixing structure (2) includes several elastic fixing clips (21) evenly distributed along the circumferential direction of the inner wall of the pipe (1), and the support structure (3) includes several annular support ribs (31) evenly arranged along the length direction of the pipe (1). A gap is reserved between adjacent annular support ribs (31), and the gap is filled with a foam buffer layer (32).

2. The HPVC power pipe with built-in cable fixing structure according to claim 1, characterized in that: The tube body (1) is made of high-polymer polyvinyl chloride.

3. The HPVC power pipe with built-in cable fixing structure according to claim 1, characterized in that: The elastic fixing clip (21) is made of silicone rubber.

4. The HPVC power pipe with built-in cable fixing structure according to claim 1, characterized in that: The inner wall of the tube (1) is provided with an insulating layer (11), which is cross-linked polyethylene.

5. The HPVC power pipe with built-in cable fixing structure according to claim 1, characterized in that: The annular support rib (31) is a high-strength glass fiber reinforced HPVC composite material.

6. The HPVC power pipe with built-in cable fixing structure according to claim 1, characterized in that: The foam buffer layer (32) is polyurethane foam.

7. The HPVC power pipe with built-in cable fixing structure according to claim 1, characterized in that: The outer wall of the tube (1) is provided with a wear-resistant layer (12), which is high-density polyethylene.

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