A post-cured cable and method of installing the same

Abstract

This invention relates to the field of cables, and specifically to a post-cured cable and its installation method. The post-cured cable includes a core, an inner insulation layer, an outer insulation layer, and a spiral strip. A spiral receiving groove for injecting curable epoxy resin is formed on the post-cured cable. An installation method for the above-mentioned post-cured cable includes filling the spiral receiving groove of the laid post-cured cable with a curable epoxy resin mixture. This post-curing method not only helps the cable maintain high insulation and performance over a long period, but also significantly extends the cable's service life and greatly improves its safety, thus greatly reducing safety hazards. This installation method allows for the convenient and rapid production of a rigid insulation layer, resulting in an excellent rigid insulation layer. This installation gives the cable strong resistance to high pressure and impact, further reducing safety hazards.

Description

Technical Field

[0001] This invention relates to the field of cables, and in particular to a post-cured cable and its installation method. Background Technology

[0002] Currently, for ease of cable winding and laying, flexible insulation is used to wrap the conductor. While flexible insulation meets the insulation requirements, its flexible nature, coupled with the limited thickness of existing flexible insulation, results in limited compressive and impact resistance in current cables. Consequently, under high pressure (e.g., in buried installations) or significant impacts (e.g., in exposed installations or environments prone to impacts from personnel movement), the insulation is easily damaged, and the conductor deforms and is damaged. This not only reduces cable performance and lifespan but also compromises safety, posing significant safety hazards. Therefore, a redesign of the cable structure is essential. Summary of the Invention

[0003] The purpose of this invention is to solve the above-mentioned problems and shortcomings by providing a post-cured cable and its installation method. This post-cured cable facilitates the formation of a rigid insulating layer after installation, providing comprehensive protection and significantly improving the cable's resistance to high pressure and impact. This, in turn, greatly reduces the probability of damage or deformation during cable use. This not only helps the cable maintain high insulation and performance over a long period but also significantly extends its service life and greatly improves its safety, thus greatly reducing potential safety hazards. The installation method allows for the convenient and rapid production of a rigid insulating layer, resulting in an excellent rigid insulating layer. This installation gives the cable very strong resistance to high pressure and impact, greatly reducing the probability of damage or deformation during cable use. This not only helps the cable maintain high performance over a long period but also significantly extends its service life and greatly improves its safety, thus greatly reducing potential safety hazards.

[0004] The technical solution of this invention is implemented as follows:

[0005] A post-curing cable is characterized by comprising a core, an inner insulation layer, an outer insulation layer, and a spiral strip. The inner insulation layer covers the core, and the outer insulation layer surrounds the inner insulation layer. The spiral strip is spirally arranged between the outer and inner insulation layers, and surrounds the inner insulation layer. The spiral gaps of the spiral strip form spiral receiving grooves for injecting curable epoxy resin. An inner wire mesh cylinder is fitted onto the inner insulation layer, and the spiral strip is wound around the inner wire mesh cylinder. An inner insulating layer is provided between the inner wire mesh cylinder and the inner insulation layer, and the inner insulating layer faces... The inner wire mesh cylinder has several inner protruding strips on its surface, and these strips are evenly arranged around the axial center of the inner wire mesh cylinder, with the length direction of each strip aligned with the axial direction of the inner wire mesh cylinder. An outer wire mesh cylinder is located inside the outer insulation layer, with a spiral strip positioned within it. An outer isolation layer is provided between the outer wire mesh cylinder and the outer insulation layer. The outer isolation layer has several outer protruding strips on its surface facing the outer wire mesh cylinder, and these strips are evenly arranged around the axial center of the outer wire mesh cylinder, with the length direction of each strip aligned with the axial direction of the outer wire mesh cylinder.

[0006] Preferably, the spiral strip is a tube that is bent into a spiral shape.

[0007] Preferably, the outer wall of the spiral strip has several through holes that extend into its inner hole.

[0008] Preferably, the spiral strip is a stainless steel spiral strip.

[0009] An installation method for the above-mentioned post-cured cable is characterized by including the following steps:

[0010] Prepare post-curing cables, liquid epoxy resin, curing agent, air pump, filling pump, and sealing tape;

[0011] Cables are cured after installation;

[0012] The openings of the spiral storage grooves at both ends of the cable are sealed and cured with sealing tape.

[0013] Connect the air intake end of the air pump and the liquid outlet end of the liquid filling pump to the two ends of the spiral receiving tank, respectively.

[0014] Liquid epoxy resin and curing agent are mixed to obtain a curable epoxy resin mixture;

[0015] A curable epoxy resin mixture is pumped into a spiral collection tank using a filling pump, while an air pump is used to remove air at the same time.

[0016] After the spiral receiving tank is filled with curable epoxy resin mixture, stop the air pump and the filling pump.

[0017] Finally, wait for the epoxy resin mixture to cure.

[0018] The beneficial effects of this invention are as follows: In this post-cured cable, the spiral strip is spirally arranged between the outer and inner insulation layers. This not only meets the requirements for normal cable winding and laying, but also strengthens the cable and effectively separates the outer and inner insulation layers, thus facilitating the formation of a stable spiral storage groove. The spiral gaps of the spiral strip form a spiral storage groove for injecting curable epoxy resin. This not only facilitates the comprehensive and effective filling of the curable epoxy resin, but also allows the cured epoxy resin to work together with the spiral strip to provide high-strength protection, and ensures that the core is surrounded by cured epoxy resin. Therefore, this post-cured cable facilitates the formation of a rigid insulating layer (composed of cured epoxy resin) after installation, providing comprehensive protection. This significantly improves the cable's resistance to high pressure and impact, thereby greatly reducing the likelihood of breakage or deformation during use. This not only helps the cable maintain high insulation and performance over a long period but also greatly extends its service life and significantly improves its safety, thus greatly reducing potential safety hazards.

[0019] This installation method allows for the convenient and rapid filling of the spiral receiving groove with a curable epoxy resin mixture. After the epoxy resin mixture cures, it not only provides accurate and stable positioning of the cable but also offers comprehensive and effective insulation protection. Therefore, this installation method can easily and quickly create a rigid insulating layer, resulting in excellent rigid insulation. This installation method gives the cable strong resistance to high pressure and impact, significantly reducing the likelihood of damage or deformation during use. This not only ensures the cable maintains high performance over a long period but also greatly extends its service life and significantly improves its safety, thus greatly reducing potential safety hazards. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the post-cured cable in this invention.

[0021] Figure 2 This is a schematic diagram of the structure of the post-cured cable end face in this invention.

[0022] Figure 3 For the present invention Figure 2 A magnified structural diagram of part A in the middle. Detailed Implementation

[0023] Example

[0024] like Figures 1 to 3As shown, the post-curing cable of the present invention includes a core body 1, an inner insulation layer 2, an outer insulation layer 3, and a spiral strip 4. The inner insulation layer 2 covers the core body 1, the outer insulation layer 3 is arranged around the inner insulation layer 2, and the spiral strip 4 is spirally arranged between the outer insulation layer 3 and the inner insulation layer 2, and the spiral strip 4 is arranged around the inner insulation layer 2. The spiral gap of the spiral strip 4 forms a spiral receiving groove 10 for injecting curable epoxy resin.

[0025] On this post-cured cable, the spiral strip 4 is spirally arranged between the outer insulation layer 3 and the inner insulation layer 2. This not only meets the normal winding management and laying requirements of the cable, but also strengthens the cable and effectively separates the outer insulation layer 3 and the inner insulation layer 2, thereby facilitating the formation of a stable spiral winding groove 10.

[0026] The spiral gaps of the spiral strip 4 form a spiral receiving groove 10 for injecting curable epoxy resin. This not only facilitates the complete and effective filling of curable epoxy resin, but also allows the cured epoxy resin to work together with the spiral strip 4 to provide high-strength protection, and ensures that the core body 1 is surrounded by cured epoxy resin.

[0027] Therefore, this post-cured cable facilitates the formation of a rigid insulating layer (composed of cured epoxy resin) after installation, providing comprehensive protection. This significantly improves the cable's resistance to high pressure and impact, thereby greatly reducing the likelihood of breakage or deformation during use. This not only helps the cable maintain high insulation and performance over a long period but also greatly extends its service life and significantly improves its safety, thus greatly reducing potential safety hazards.

[0028] like Figures 1 to 3 As shown, an inner wire mesh tube 5 is fitted onto the inner insulation layer 2, and the spiral strip 4 is wound around the inner wire mesh tube 5. The inner wire mesh tube 5 not only does not affect the normal winding management and laying requirements of the cable, but also allows the inner wire mesh tube 5 to be encapsulated by the cured epoxy resin. This allows the inner wire mesh tube 5 and the cured epoxy resin to reinforce each other, thereby helping to further improve the strength of the insulation layer and thus further improving the reliability and applicability of the post-cured cable.

[0029] like Figures 1 to 3As shown, an inner isolation layer 6 is provided between the inner wire mesh cylinder 5 and the inner insulation layer 2. Several inner protruding strips 61 are provided on the surface of the inner isolation layer 6 facing the inner wire mesh cylinder 5, and these strips are evenly arranged around the axial center of the inner wire mesh cylinder 5. Furthermore, the length direction of each inner protruding strip 61 is in the same direction as the axial direction of the inner wire mesh cylinder 5. The inner isolation layer 6 serves to separate the inner insulation layer 2 from the cured epoxy resin, thereby ensuring that the inner insulation layer 2 exhibits a stable insulation effect. The inner protruding strips 61 allow for contact with the inner wall of the inner wire mesh cylinder 5, thus reducing the contact area. The gaps between adjacent inner protruding strips 61 can be filled with curable epoxy resin. This allows the curable epoxy resin to more comprehensively and effectively wrap the inner wire mesh cylinder 5, thereby providing a more reliable reinforcement. Furthermore, the epoxy resin filling the gaps between adjacent inner protruding strips 61 forms axially extending protrusions after curing, which also provides a highly effective reinforcement. This more effectively improves the structural strength of the insulation layer, thereby providing a more stable and reliable reinforcement and protection, and further contributing to improving the reliability and applicability of the post-cured cable.

[0030] like Figures 1 to 3 As shown, an outer wire mesh tube 7 is provided on the inner side of the outer insulation layer 3, and the spiral strip 4 is located inside the outer wire mesh tube 7. The outer wire mesh tube 7 not only does not affect the normal winding management and laying requirements of the cable, but also allows the outer wire mesh tube 7 to be encapsulated by the cured epoxy resin. This allows the outer wire mesh tube 7 and the cured epoxy resin to reinforce each other, thereby helping to further improve the strength of the insulation wrapping layer, and thus further improving the reliability and applicability of the post-cured cable.

[0031] like Figures 1 to 3As shown, an outer insulating layer 8 is provided between the outer wire mesh cylinder 7 and the outer insulation layer 3. Several protruding strips 81 are provided on the surface of the outer insulating layer 8 facing the outer wire mesh cylinder 7, and these protruding strips 81 are evenly arranged around the axial center of the outer wire mesh cylinder 7. Furthermore, the length direction of each protruding strip 81 is in the same direction as the axial direction of the outer wire mesh cylinder 7. The outer insulating layer 8 serves to separate the outer insulation layer 3 from the cured epoxy resin, thereby ensuring that the outer insulation layer 3 exhibits a stable insulating effect. The protruding strips 81 allow for contact with the outer wall of the outer wire mesh cylinder 7, thus reducing the contact area. The gaps between adjacent protruding strips 81 can be filled with curable epoxy resin. This allows the curable epoxy resin to more comprehensively and effectively wrap the outer wire mesh cylinder 7, thereby providing a more reliable reinforcement. Furthermore, the epoxy resin filling the gaps between adjacent protruding strips 81 forms axially extending protrusions after curing, which also provides a highly effective reinforcement. This more effectively improves the structural strength of the insulation layer, resulting in a more stable and reliable reinforcement protection, and further enhancing the reliability and applicability of the post-cured cable.

[0032] like Figure 3 As shown, the inner insulating layer 6 and each inner protruding strip 61 are integrally formed into an insulating soft plastic structure; the outer insulating layer 8 and each outer protruding strip 81 are integrally formed into an insulating soft plastic structure; thus, the needs of actual manufacturing and use can be met.

[0033] like Figures 1 to 3 As shown, the spiral strip 4 is a tubular strip bent into a spiral shape. This not only facilitates the bending of the spiral strip 4, but also reduces the amount of material used on the spiral strip 4 when making a thick spiral receiving groove 10, which helps to improve the applicability of the post-cured cable in the above-mentioned environment.

[0034] like Figure 2 and Figure 3 As shown, the outer wall of the spiral strip 4 has several through holes 42 that penetrate into its inner hole 41. The through holes 42 can introduce curable epoxy resin into the inner hole 41 of the spiral strip 4, which makes the structure of the cured epoxy resin and the spiral strip 4 more stable, thereby further improving the structural strength and thus helping to further improve the reliability and applicability of the post-cured cable.

[0035] The spiral strip 4 is made of stainless steel. This gives the spiral strip 4 high structural strength and durability, which helps to further improve the structural strength of the post-cured cable, and thus further improves the reliability and applicability of the post-cured cable. Example

[0036] An installation method for a post-cured cable as described in Embodiment 1 includes the following steps:

[0037] Prepare post-curing cables, liquid epoxy resin, curing agent (the liquid epoxy resin and curing agent can be existing liquid epoxy resins and curing agents that can form a hard epoxy resin body after curing, and their ratio can also be the existing ratio that can form a hard epoxy resin body after curing, so as to meet the actual manufacturing and use requirements), air pump, filling pump, and sealing tape.

[0038] Cables are cured after installation;

[0039] The openings of the spiral storage grooves 10 at both ends of the cable are sealed and cured with sealing tape.

[0040] Connect the suction end of the air pump and the discharge end of the liquid filling pump to the two ends of the spiral receiving trough 10 respectively (a pipe can be inserted into the port of the spiral receiving trough 10 and connected to the suction end of the air pump or the discharge end of the liquid filling pump to achieve the above-mentioned connection).

[0041] Liquid epoxy resin and curing agent are mixed to obtain a curable epoxy resin mixture;

[0042] A curable epoxy resin mixture is pumped into the spiral receiving tank 10 using a filling pump, while an air pump is used to remove air at the same time.

[0043] After the spiral receiving tank 10 is filled with curable epoxy resin mixture, stop the air pump and the filling pump.

[0044] Finally, wait for the epoxy resin mixture to cure.

[0045] This installation method allows for the convenient and rapid filling of the spiral receiving groove 10 with a curable epoxy resin mixture. After the epoxy resin mixture cures, it not only provides accurate and stable positioning of the cable but also offers comprehensive and effective insulation protection. Therefore, this installation method can easily and quickly create a rigid insulating layer, resulting in excellent rigid insulation. This installation method gives the cable strong resistance to high pressure and impact, significantly reducing the probability of damage or deformation during use. This not only ensures the cable maintains high performance over a long period but also greatly extends its service life and significantly improves its safety, thus greatly reducing potential safety hazards.

[0046] The above embodiments are preferred embodiments of the present invention. Any structures similar to those of the present invention and any equivalent changes thereof should fall within the protection scope of the present invention.

Claims

1. A post-curing cable, characterized in that: The device includes a wire core (1), an inner insulation layer (2), an outer insulation layer (3), and a spiral strip (4). The inner insulation layer (2) covers the wire core (1), and the outer insulation layer (3) is arranged around the inner insulation layer (2). The spiral strip (4) is spirally arranged between the outer insulation layer (3) and the inner insulation layer (2), and the spiral strip (4) is arranged around the inner insulation layer (2). The spiral gap of the spiral strip (4) forms a spiral receiving groove (10) for injecting curable epoxy resin. An inner wire mesh cylinder (5) is fitted on the inner insulation layer (2), and the spiral strip (4) is wound around the inner wire mesh cylinder (5). An inner isolation layer (6) is provided between the inner wire mesh cylinder (5) and the inner insulation layer (2), and the inner isolation layer (6) faces the inner wire mesh. A plurality of inner protruding strips (61) are provided on the surface of the inner wire mesh cylinder (5), and each inner protruding strip (61) is evenly arranged around the axial center of the inner wire mesh cylinder (5), and the length direction of each inner protruding strip (61) is in the same direction as the axial direction of the inner wire mesh cylinder (5); an outer wire mesh cylinder (7) is provided on the inner side of the outer insulation layer (3), and the spiral strip (4) is located inside the outer wire mesh cylinder (7); an outer isolation layer (8) is provided between the outer wire mesh cylinder (7) and the outer insulation layer (3), and a plurality of outer protruding strips (81) are provided on the surface of the outer isolation layer (8) facing the outer wire mesh cylinder (7), and each outer protruding strip (81) is evenly arranged around the axial center of the outer wire mesh cylinder (7), and the length direction of each outer protruding strip (81) is in the same direction as the axial direction of the outer wire mesh cylinder (7).

2. The post-cured cable according to claim 1, characterized in that: The spiral strip (4) is a tube that is bent into a spiral shape.

3. The post-cured cable according to claim 2, characterized in that: The outer wall of the spiral strip (4) is provided with several through holes (42) that penetrate into its inner hole (41).

4. The post-cured cable according to any one of claims 1 to 3, characterized in that: The spiral strip (4) is a stainless steel spiral strip.

5. A method for installing a post-cured cable as described in any one of claims 1 to 4, characterized in that... Includes the following steps: Prepare post-curing cables, liquid epoxy resin, curing agent, air pump, filling pump, and sealing tape; Cables are cured after installation; The groove openings of the spiral storage groove (10) at both ends of the cable are sealed and cured with sealing tape; Connect the air intake end of the air pump and the liquid outlet end of the liquid filling pump to the two ends of the spiral receiving trough (10). Liquid epoxy resin and curing agent are mixed to obtain a curable epoxy resin mixture; The curable epoxy resin mixture is pumped into the spiral receiving tank (10) using a filling pump, and air is simultaneously pumped out using an air pump. After the spiral receiving tank (10) is filled with curable epoxy resin mixture, stop the air pump and the filling pump. Finally, wait for the epoxy resin mixture to cure.

Images