A prefabricated module for horizontal bending of a cable trench

Abstract

The utility model discloses a prefabricated module for cable trench horizontal direction bending, including for cable trench line route bending and the whole is the fan shape's cable trench bending section and for cable trench line route straight -line laying and the whole is the rectangle's cable trench auxiliary section, the cable trench bending section and the cable trench bending section between, cable trench auxiliary section and cable trench auxiliary section between, the cable trench bending section and cable trench auxiliary section between can splice, when using, through the combination of different quantities of cable trench bending section or the splicing combination of cable trench bending section and cable trench auxiliary section to form the required bending cable trench. The utility model can define splicing and combination according to actual engineering demand, is not limited to the limitation of cable trench bending section curvature radius to cable trench line route bending, guarantees the bending freedom of cable trench horizontal direction, and can realize the bending of different horizontal angles and the obstacle avoidance of different forms of cable trench line route without the help of work well.

Description

Technical Field

[0001] This utility model relates to the field of power construction, and in particular to a prefabricated module for horizontal bending of cable trenches. Background Technology

[0002] As the demand for urban power supply increases, high-voltage lines are beginning to enter urban centers and are gradually shifting from overhead installations to underground installations. Cable trenches, as one of the most commonly used structures for cable laying, are widely used in urban high-voltage cable laying due to their advantages such as simple civil construction, low cost, and greater size compared to small-diameter cable tunnels and cable ducts.

[0003] In the design process of cable trench laying, when encountering requirements for turning, branching, or avoiding obstacles along the route, the cable trench often needs to be redesigned. This requires rerouting the cable path in advance or using manholes to achieve the turning, branching, and obstacle avoidance. This traditional design method is too rigid and redundant, lacking flexibility and applicability.

[0004] Currently, cable trench laying typically employs cast-in-place construction, which involves excavating the cable trench foundation pit on-site, pouring the base slab, tying the cable trench reinforcement bars, and then pouring concrete for curing. This traditional method has drawbacks such as a large construction area, long construction period, and severe on-site pollution. Especially during the laying of municipal cable lines, it can cause urban road blockages, and the on-site concrete pouring pollutes the environment, seriously affecting people's daily lives and failing to meet the needs of modern urban development.

[0005] Currently, there is a patent application for "Prefabricated Assembled Cable Trench" with application number 201710098660.1. The assembled cable trench disclosed in the application adopts the U-shaped cross-section of the integral prefabrication. The integral prefabrication of the components makes the preparation complicated and the transportation and hoisting engineering very difficult. Moreover, it does not explain how the prefabricated components are longitudinally connected, and it only stays at the conceptual stage of prefabricated assembly. The two types of prefabricated cable trenches disclosed in application No. 201821078520.4, "A Quick-Assemble Sheet Prefabricated Cable Trench", and application No. 201720381897.6, "Frame Prefabricated Cable Trench Unit and Cable Trench", adopt a design that separates the base plate and side walls. They also describe the longitudinal connection method between prefabricated components and have certain practical value. However, they are both limited to the application of straight-line laying of cable trench lines. For actual line design and construction, if the cable trench line needs to turn horizontally or avoid obstacles, no solution is provided. They can only return to the traditional cast-in-place mode or be supplemented by working wells to complete the task. They have not formed a complete prefabricated cable trench system.

[0006] In summary, cable laying is a long-distance, long-term construction project. During the initial route exploration and design phase, unexplored geological formations or obstacles are inevitable. Construction also presents challenges such as land acquisition and permitting issues, conflicts with other ongoing or existing projects, and unexpected obstacles. Currently, there are no universally applicable and highly flexible solutions. Traditional cable trench construction uses cast-in-place methods, which do not meet the needs of modern urban development, while new prefabricated cable trenches are only suitable for straight-line laying. Furthermore, manual inspections often require opening and closing cable trench covers to see the interior, which is time-consuming and labor-intensive. Current prefabricated cable trenches have not addressed the issue of ease of maintenance. Utility Model Content

[0007] In order to at least solve one of the problems existing in the prior art, this utility model provides a prefabricated module for horizontal bending of cable trenches, which can improve the convenience and flexibility of cable trench line laying.

[0008] The above-mentioned objective of this utility model is achieved through the following technical solution:

[0009] To achieve the purpose of this utility model, this utility model provides a prefabricated module for horizontal bending of cable trenches, including a cable trench bending segment that is fan-shaped for bending cable trench lines and a cable trench auxiliary segment that is rectangular for straight cable trench lines. The cable trench bending segments can be spliced ​​together, the cable trench auxiliary segments can be spliced ​​together, and the cable trench bending segments and cable trench auxiliary segments can be spliced ​​together. In use, the desired bending cable trench can be formed by combining different numbers of cable trench bending segments or by splicing cable trench bending segments and cable trench auxiliary segments.

[0010] Furthermore, the cable trench bending segment includes a fan-shaped bending segment base plate, an outer bending segment wall and an inner bending segment wall spliced ​​on the bending segment base plate and arranged opposite to each other, and a fan-shaped bending segment cover plate covering the outer bending segment wall and the inner bending segment wall, and the bending amplitude of the bending segment base plate, the outer bending segment wall, the inner bending segment wall, and the bending segment cover plate are all the same;

[0011] The cable trench auxiliary segment includes a rectangular auxiliary segment base plate at the bottom, two auxiliary segment side walls spliced ​​on the rectangular auxiliary segment base plate, and an auxiliary segment cover plate covering the auxiliary segment side walls;

[0012] Both the fan-shaped curved segment base plate and the rectangular auxiliary segment base plate are equipped with base plate limiting structures. The outer side wall, inner side wall, and auxiliary segment side wall are equipped with side wall limiting structures. The splicing between adjacent cable trench curved segments, between adjacent cable trench auxiliary segments, and between adjacent cable trench curved segments and cable trench auxiliary segments is achieved through the cooperation of the base plate limiting structures and the side wall limiting structures.

[0013] Both the base plate of the bending segment and the base plate of the auxiliary segment are equipped with sidewall installation and positioning structures that connect to the outer sidewall, inner sidewall, and auxiliary sidewall of the corresponding bending segment. The outer sidewall, inner sidewall, and auxiliary sidewall of the bending segment are all equipped with uniform sidewall limiting structures to connect adjacent sidewalls. By setting uniform splicing joints, appropriate segments can be selected and spliced ​​according to the actual laying requirements, achieving horizontal bending of the cable trench. This is not limited by the curvature radius of the bending segment, ensuring the horizontal bending freedom of the cable trench. This gives the cable trench a strong obstacle avoidance function and terrain adaptability. Furthermore, the separate design of the prefabricated base plate, prefabricated sidewall, and prefabricated cover plate facilitates convenient and quick component preparation and transportation, avoiding the transportation and hoisting of large-sized components.

[0014] Furthermore, the side wall limiting structure is a protrusion or a groove, and the bottom plate limiting structure is a groove or a protrusion.

[0015] Furthermore, a first positioning structure is provided on the outer wall, inner wall, and auxiliary segment sidewall of the curved segment, and a second positioning structure is provided on the fan-shaped curved segment bottom plate and the rectangular auxiliary segment bottom plate. The splicing between the outer wall, inner wall and fan-shaped curved segment bottom plate, as well as the splicing between the auxiliary segment sidewall and the rectangular auxiliary segment bottom plate, are achieved through the cooperation of the first and second positioning structures.

[0016] Furthermore, the first positioning structure is a protrusion or a groove, and the second positioning structure is a groove or a protrusion.

[0017] Furthermore, to improve the convenience of line inspection and maintenance, transparent skylights are provided on both the curved section cover and the auxiliary section cover. This allows for external observation of the cable trench interior without opening or closing the cable trench cover, ensuring both internal visibility and the structural reliability and safety of the transparent skylights.

[0018] Furthermore, both the curved segment cover plate and the auxiliary segment cover plate have transparent skylights penetrating their top and bottom in the center.

[0019] Furthermore, the transparent skylight includes a protective frame and a transparent panel disposed within the protective frame.

[0020] Furthermore, to ensure the connection quality and mechanical properties between the base plates, the base plate limiting structure includes a first base plate limiting structure and a second base plate limiting structure that can cooperate with the first base plate limiting structure. The first base plate limiting structure and the second base plate limiting structure are respectively provided on both sides of the fan-shaped curved segment base plate and both sides of the rectangular auxiliary segment base plate to achieve uniformity of the splicing interface between the base plates; the side wall limiting structure includes a first side wall limiting structure and a second side wall limiting structure that can cooperate with the first side wall limiting structure. The first side wall limiting structure and the second side wall limiting structure are respectively provided on both sides of the outer side wall of the curved segment, both sides of the inner side wall of the curved segment, and both sides of the side wall of the auxiliary segment.

[0021] Furthermore, the base plate limiting structure includes a first base plate limiting structure disposed at one end of the curved segment base plate and the auxiliary segment base plate perpendicular to the cable laying direction, and a second base plate limiting structure that matches it at the other end.

[0022] Furthermore, to enhance waterproofing performance, the first limiting structure of the base plate, the first limiting structure of the side wall, and the first positioning structure are all equipped with sealing waterproof rings; to prevent damage to the prefabricated cable trench module during splicing, the second limiting structure of the base plate, the second limiting structure of the side wall, and the second positioning structure are all equipped with anti-collision pads.

[0023] Furthermore, to facilitate cable laying, the inner surfaces of the outer wall of the curved segment, the inner wall of the curved segment, and the side wall of the auxiliary segment are provided with several cable supports for cable laying.

[0024] Furthermore, taking into account the maximum bending rate of the cable and the applicability of prefabricated module preparation and construction, the central angle of the sector is 15° or 30°.

[0025] Furthermore, in order to ensure the connection quality and mechanical performance between the sidewalls, the sidewall limiting structure includes a first sidewall limiting structure installed on one end of the outer sidewall of the curved segment, the inner sidewall of the curved segment, and the auxiliary segment sidewall perpendicular to the cable laying direction, and a second sidewall limiting structure matching it on the other end, so as to achieve uniformity of the splicing interface between the sidewalls.

[0026] Furthermore, the sidewall limiting structure includes a second positioning structure disposed on both sides of the upper surface of the curved segment bottom plate and the auxiliary segment bottom plate, and a first positioning structure disposed on the bottom of the curved segment outer wall, the curved segment inner wall and the auxiliary segment side wall, which matches the second positioning structure in the longitudinal direction, thus ensuring the mechanical performance of the joint connection.

[0027] Compared with the prior art, the present invention has the following significant effects:

[0028] (1) Due to the uniformity of their splicing interfaces, the cable trench bending segment and cable trench auxiliary segment in this utility model can be selected and matched according to the actual laying line requirements, so as to realize the horizontal bending of the cable trench. It is not limited by the curvature radius of the cable trench bending segment on the bending of the cable trench line, ensuring the horizontal bending freedom of the cable trench, and making the cable trench line have strong obstacle avoidance function and terrain adaptability.

[0029] (2) In this utility model, if the design encounters a change in the route planning or avoids various obstacles along the design route, there is no need to redesign the laying route or use manholes to achieve this. This improves the versatility and applicability of the design, simplifies the design process, and also provides a complete solution for the prefabricated cable trench laying system.

[0030] (3) This utility model greatly improves the flexibility of on-site construction of cable trenches and specifically solves the problems that may be encountered during construction, such as the strata or obstacles that have not been explored in the early stage, the land acquisition and application issues during the construction process, the structural conflicts with other projects under construction or already built, or the sudden obstacles that may cause the construction progress to stall.

[0031] (4) The separate design of the precast base plate, precast side wall and precast cover plate in each cable trench segment of this utility model makes the component preparation and transportation convenient and quick, and improves the convenience of transportation and hoisting construction of precast components.

[0032] (5) In this utility model, there are joint structures with good mechanical properties between the base plate and the base plate, between the side wall and the side wall, and between the base plate and the side wall, which ensures the installation quality of the prefabricated structure while ensuring the overall mechanical properties of the cable trench structure.

[0033] (6) The splicing structure of this utility model is equipped with a sealing waterproof strip and an anti-collision rubber pad, which not only ensures the anti-seepage performance of the joint, but also effectively prevents the cable trench structure from being damaged by collision at the joint during splicing construction.

[0034] (7) This utility model allows for observation of the inside of the cable trench from the outside through the transparent skylight in the cover plate, which solves the problem that the cable trench cover plate needs to be opened and closed to see the inside of the cable trench during manual line inspection, and avoids the cumbersome process and safety hazards of opening and closing the cable trench cover plate.

[0035] (8) The same components of each cable trench segment in this utility model have the same size and interface, which greatly improves the convenience of replacing the prefabricated modules of the cable trench and the fault tolerance rate of the prefabricated components.

[0036] (9) This utility model adopts a modular approach to guide design and construction. It can be designed according to the actual size of the cable trench and then transported from the factory to the site for direct splicing. All construction methods adopt dry connection, with no wet work on site. Construction is convenient, environmentally friendly and pollution-free. There is no formwork disassembly or assembly work, no need for concrete curing. After installation, the soil can be sealed to restore the original appearance of the site. It is fast, efficient and saves a lot of construction time. Attached Figure Description

[0037] Figure 1 This is a three-dimensional view of the cable trench bending segment in an embodiment of this utility model;

[0038] Figure 2 This is a three-dimensional assembly of the components of the cable trench bending segment in this embodiment of the present invention. Figure 1 ;

[0039] Figure 3 This is a three-dimensional assembly of the components of the cable trench bending segment in this embodiment of the present invention. Figure 2 ;

[0040] Figure 4 This is a three-dimensional view of the auxiliary segment of the cable trench in an embodiment of this utility model;

[0041] Figure 5 This is a three-dimensional view of the assembly of various components of the auxiliary section of the cable trench in this embodiment of the present invention;

[0042] Figure 6 This is a schematic diagram of the combination of cable trench bending segments in an embodiment of this utility model;

[0043] Figure 7 This is a three-dimensional view of the splicing between the curved segments of the cable trench in an embodiment of this utility model;

[0044] Figure 8 This is a schematic diagram of the combination of the cable trench bending segment and the cable trench auxiliary segment in an embodiment of this utility model;

[0045] Figure 9 This is a three-dimensional view of the splicing of the cable trench bending segment and the cable trench auxiliary segment in an embodiment of this utility model;

[0046] Figure 10 This is a detailed drawing of the transparent skylight in an embodiment of this utility model;

[0047] Figure 11 This is a schematic diagram of the combination of the transparent skylight in an embodiment of this utility model;

[0048] Figure 12 This is a schematic diagram illustrating how to achieve arbitrary bending of cable trenches by continuously splicing curved segments.

[0049] Figure 13This is a schematic diagram illustrating how cable trenches can be bent arbitrarily by combining and splicing curved segments and auxiliary segments.

[0050] Figure 14 This invention relates to a cable trench application scenario 1, which utilizes the cable trench bending segment and cable trench auxiliary segment of this invention to achieve bending, turning, or obstacle avoidance.

[0051] Figure 15 This utility model provides a second application scenario for cable trenches to achieve bending, turning, or obstacle avoidance by utilizing the cable trench bending segment and cable trench auxiliary segment of this utility model.

[0052] Figure 16 This is application scenario 3, where the cable trench utilizes the cable trench bending segment and cable trench auxiliary segment of this utility model to achieve bending, turning, or obstacle avoidance.

[0053] Figure 17 This is application scenario 4, where the cable trench utilizes the cable trench bending segment and cable trench auxiliary segment of this utility model to achieve bending, turning, or obstacle avoidance.

[0054] Figure 18 This is application scenario 5, where the cable trench utilizes the cable trench bending segment and cable trench auxiliary segment of this utility model to achieve bending, turning, or obstacle avoidance.

[0055] Figure 19 This invention relates to a cable trench application scenario 6, which utilizes the cable trench bending segment and cable trench auxiliary segment of this invention to achieve bending, turning, or obstacle avoidance.

[0056] In the diagram: 1—Cable trench bending segment; 11—Bending segment cover plate; 12—Outer wall of bending segment; 13—Inner wall of bending segment; 14—Bending segment bottom plate; 2—Cable trench auxiliary segment; 21—Auxiliary segment cover plate; 22—Auxiliary segment side wall; 23—Auxiliary segment bottom plate; 3—Cable bracket; 4—First limiting structure of side wall; 41—Second limiting structure of side wall; 5—First limiting structure of bottom plate; 51—Second limiting structure of bottom plate; 6—First positioning structure; 61—Second positioning structure; 7—Transparent skylight; 71—Protective frame; 72—Transparent plate; 8—Obstacle area. Detailed Implementation

[0057] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0058] This utility model provides a prefabricated module for horizontal bending of cable trenches, including a cable trench bending segment 1 that is fan-shaped for bending cable trench lines and a cable trench auxiliary segment 2 that is rectangular for straight cable trench lines. The cable trench bending segments 1, cable trench auxiliary segments 2, and cable trench bending segments 1 and cable trench auxiliary segments 2 can all be spliced ​​together. In use, the desired bending cable trench can be formed by combining different numbers of cable trench bending segments 1 or by splicing cable trench bending segments 1 and cable trench auxiliary segments 2.

[0059] The cable trench bending segment 1 includes a fan-shaped bending segment base plate 14 at the bottom, an outer bending segment wall 12 spliced ​​on the bending segment base plate 14 and located on the outer side of the bending direction, an inner bending segment wall 13 located on the inner side of the bending direction, and two fan-shaped bending segment cover plates 11 covering the outer bending segment wall 12 and the inner bending segment wall 13. The bending amplitude of the bending segment base plate 14, the outer bending segment wall 12, the inner bending segment wall 13, and the bending segment cover plates 11 are all the same. The cable trench auxiliary segment 2 includes a rectangular auxiliary segment base plate 23 at the bottom, spliced ​​on the auxiliary segment base plate 14, an outer bending segment wall 12 spliced ​​on the outer bending segment wall 14 and the inner bending segment wall 13, and two fan-shaped bending segment cover plates 11 covering the outer bending segment wall 12 and the inner bending segment wall 13. The auxiliary segment base plate 23 has two auxiliary segment sidewalls 22 on both sides above it, and an auxiliary segment cover plate 21 covering the auxiliary segment sidewalls 22. The curved segment base plate and the auxiliary segment base plate 23 are provided with a uniform base plate limiting structure to connect adjacent base plates. The curved segment base plate 14 and the auxiliary segment base plate 23 are provided with a side wall installation positioning structure that connects to the corresponding curved segment outer sidewall 12, curved segment inner sidewall 13 and auxiliary segment sidewall 22. The curved segment outer sidewall 12, curved segment inner sidewall 13 and auxiliary segment sidewall 22 are provided with a uniform side wall limiting structure to connect adjacent sidewalls.

[0060] The sidewall mounting and positioning structure includes a second positioning structure 61 disposed on both longitudinal sides of the upper surface of the curved segment base plate 14 and the auxiliary segment base plate 23, and a first positioning structure 6 disposed at the bottom of the curved segment outer sidewall 12, the curved segment inner sidewall 13 and the auxiliary segment sidewall 22, which matches the second positioning structure 61 longitudinally.

[0061] The base plate limiting structure includes a first base plate limiting structure 5 disposed at one end of the curved segment base plate 14 and the auxiliary segment base plate 23 perpendicular to the cable laying direction, and a second base plate limiting structure 51 that matches it at the other end.

[0062] The sidewall limiting structure includes a first sidewall limiting structure 4 installed on one end of the outer sidewall 12 of the curved segment, the inner sidewall 13 of the curved segment, and the auxiliary segment sidewall 22 perpendicular to the cable laying direction, and a second sidewall limiting structure 41 that matches it on the other end.

[0063] Both the curved segment cover plate 11 and the auxiliary segment cover plate 21 are provided with transparent skylights 7.

[0064] The first limiting structure 5 of the base plate, the first limiting structure 4 of the side wall, and the first positioning structure 6 are all equipped with sealing and waterproof rubber rings, and the second limiting structure 51 of the base plate, the second limiting structure 41 of the side wall, and the second positioning structure 61 are all equipped with anti-collision rubber pads.

[0065] The inner surfaces of the outer wall 12 of the curved segment, the inner wall 13 of the curved segment, and the inner wall 22 of the auxiliary segment are provided with a number of cable supports 3 that can be used to lay cables.

[0066] In one embodiment of this utility model, such as Figures 1-3 As shown, this is a fan-shaped cable trench bending segment 1 in this utility model embodiment. The horizontal bending of the cable trench line is mainly achieved by laying the cable trench bending segment 1. Figures 4-5 As shown, the cable trench auxiliary segment 2 in this utility model example is mainly used to assist the cable trench bending segment 1 in adjusting the bending radius and direction of the cable trench line. Several cable trench auxiliary segments 2 can be inserted between the cable trench bending segments 1 to expand the bending radius of the cable trench line, or the direction of the cable trench line can be adjusted by continuously splicing several cable trench auxiliary segments 2 and then the cable trench bending segment 1 can continue to be laid. It is not limited by the curvature radius of the cable trench bending segment 1 on the bending of the cable trench line, and realizes the horizontal bending freedom of the cable trench.

[0067] In one embodiment of this utility model, such as Figures 6-7 As shown, this is a combined structure for bending cable trench lines, which is formed by splicing two cable trench bending segments 1. That is, the bending of the cable trench line at different angles is achieved by continuously splicing the cable trench bending segments 1. First, the bending segment base plate 14 is placed and spliced ​​with the second limiting structure 51 of the base plate of the adjacent previous cable trench bending segment 1 through the first limiting structure 5 of the base plate. Then, the outer wall 12 and the inner wall 13 of the bending segment are hoisted from top to bottom. The first limiting structure 4 of the front side wall is spliced ​​with the second limiting structure 41 of the side wall of the adjacent previous bending segment outer wall 12 or inner wall 13. At this time, the first positioning structure 6 of the outer wall 12 and the inner wall 13 of the bending segment will engage with the second positioning structure 61 on both sides of the bending segment base plate 14. Finally, the two bending segment cover plates 11 above the cable trench bending segment 1 are placed in sequence.

[0068] In one embodiment of this utility model, such as Figures 8-9The diagram shows the splicing of the cable trench bending segment 1 and the cable trench auxiliary segment 2. First, the auxiliary segment base plate 23 is placed and spliced ​​with the second limiting structure 51 of the base plate of the adjacent previous cable trench bending segment 1 through the first limiting structure 5 of the base plate. Then, the auxiliary segment side wall 22 is hoisted from top to bottom, and its front side wall first limiting structure 4 is spliced ​​with the side wall second limiting structure 41 of the outer side wall 12 and the inner side wall 13 of the adjacent previous bending segment. At this time, the first positioning structure 6 of the auxiliary segment side wall 22 will engage with the second positioning structures 61 on both sides of the auxiliary segment base plate 23. Finally, an auxiliary segment cover plate 21 is placed on top of the cable trench auxiliary segment 2.

[0069] In one embodiment of this utility model, such as Figures 10-11 As shown, during the operation of the cable trench, the interior of the cable trench is visualized through the transparent skylight 7 in the curved section cover plate 11 and the auxiliary section cover plate 21. The interior of the cable trench can be observed from the outside without opening or closing the cover plate. The transparent skylight 7 is located in the middle of the curved section cover plate 11 and the auxiliary section cover plate 21, penetrating the top and bottom surfaces of the curved section cover plate 11 and the auxiliary section cover plate 21. It includes a protective frame 71 as the outer frame and two transparent plates 72 installed on the top and bottom of the protective frame 71, respectively. While realizing the internal observation function, it also ensures the structural reliability and safety of the transparent skylight 7.

[0070] In one embodiment of this utility model, such as Figures 12-15 As shown, the actual turning angle required for the cable trench line can be adjusted by continuously splicing the cable trench bending segments 1. The turning angle of a single cable trench bending segment 1 is the central angle of the cable trench bending segment 1. The turning angle after splicing n cable trench bending segments 1 is: n × the central angle of the cable trench bending segment 1. Auxiliary cable trench segments 2 can also be inserted into the continuously spliced ​​cable trench bending segments 1 as needed to change the bending radius and amplitude of the cable trench line. This allows the cable trench line to turn while avoiding the obstacle area 8 ahead, improving the turning freedom of the cable trench line.

[0071] In one embodiment of this utility model, such as Figures 16-17 As shown, a combination structure with a turning angle of 90° is formed by continuously splicing several cable trench bending segments 1. Horizontal translation of the cable trench line can be achieved by using two of these 90° combination structures. Alternatively, several cable trench auxiliary segments 2 can be continuously inserted between two 90° combination structures. The distance between the two 90° combination structures can be adjusted according to the obstacle area 8, allowing the cable trench line to be translated while avoiding the lateral obstacle area 8, thus improving the flexibility of cable trench line laying.

[0072] In one embodiment of this utility model, such as Figures 18-19 As shown, a combination structure with a turning angle of 180° is formed by continuously splicing several cable trench bending segments 1. Then, by continuously inserting several cable trench auxiliary segments 2 between two of the above 180° combination structures, the distance between the two 180° combination structures can be adjusted according to the obstacle area 8. This allows the cable trench line to accurately return to its original route after avoiding the obstacle area 8, thus improving the construction flexibility, obstacle avoidance, and terrain adaptability of the cable trench line.

[0073] The cable trench bending segments and auxiliary segments in the aforementioned embodiments of this utility model, due to their unified splicing interfaces, can be selected and spliced ​​according to the actual laying requirements, thereby achieving horizontal bending of the cable trench. This is not limited by the curvature radius of the bending segments, ensuring the horizontal bending freedom of the cable trench and giving it strong obstacle avoidance capabilities and terrain adaptability. Furthermore, it improves the simplicity and flexibility of cable trench design and construction. The transparent skylight in the cover allows for external observation of the cable trench interior without opening or closing the cover, enhancing the convenience of line inspection and maintenance.

[0074] The embodiments of this utility model are not limited to these. Based on the above description of this utility model, and in accordance with common techniques and practices in the field, without departing from the basic technical concept of this utility model, there are other ways to splice the bottom plates, side walls, bottom plates and side walls, and side walls and cover plates of each cable trench segment. The dimensions of each cable trench segment can be designed and processed according to the actual engineering conditions. Traditional cable trench covers can also be used. Alternatively, only one cable trench segment of this utility model can be selected for use in the laying of cable trench lines according to the actual engineering needs. Therefore, this utility model also has various modifications, substitutions, or alterations, all of which fall within the scope of protection of this utility model.

Claims

1. A prefabricated module for horizontal bending of cable trenches, characterized in that, It includes a cable trench bending segment (1) that is fan-shaped for cable trench line bending and laying, and a cable trench auxiliary segment (2) that is rectangular for cable trench line straight laying. The cable trench bending segment (1) and the cable trench bending segment (1) can be spliced ​​together, the cable trench auxiliary segment (2) and the cable trench auxiliary segment (2) can be spliced ​​together, and the cable trench bending segment (1) and the cable trench auxiliary segment (2) can be spliced ​​together. When in use, the desired bending cable trench is formed by combining different numbers of cable trench bending segments (1) or by splicing cable trench bending segments (1) and cable trench auxiliary segments (2).

2. A prefabricated module for horizontal bending of cable trenches according to claim 1, characterized in that, The cable trench bending segment (1) includes a fan-shaped bending segment base plate (14), an outer wall (12) and an inner wall (13) of the bending segment spliced ​​on the bending segment base plate (14) and arranged opposite to each other, and a fan-shaped bending segment cover plate (11) covering the outer wall (12) and the inner wall (13) of the bending segment. The bending amplitude of the bending segment base plate (14), the outer wall (12), the inner wall (13), and the cover plate (11) is consistent. The cable trench auxiliary segment (2) includes a rectangular auxiliary segment base plate (23), an auxiliary segment side wall (22) spliced ​​on the rectangular auxiliary segment base plate (23), and an auxiliary segment cover plate (21) covering the auxiliary segment side wall (22); The fan-shaped curved segment base plate (14) and the rectangular auxiliary segment base plate (23) are both equipped with base plate limiting structures. The outer wall (12), inner wall (13), and auxiliary segment side wall (22) of the curved segment are all equipped with side wall limiting structures. The splicing between adjacent cable trench curved segments (1), between adjacent cable trench auxiliary segments (2), and between adjacent cable trench curved segments (1) and cable trench auxiliary segments (2) is achieved through the cooperation of the base plate limiting structure and the side wall limiting structure.

3. A prefabricated module for horizontal bending of cable trenches according to claim 2, characterized in that, The side wall limiting structure is a protrusion or a groove, and the bottom plate limiting structure is a groove or a protrusion.

4. A prefabricated module for horizontal bending of cable trenches according to claim 2, characterized in that, A first positioning structure (6) is provided on the outer wall (12), inner wall (13), and auxiliary wall (22) of the curved segment. A second positioning structure (61) is provided on the bottom plate (14) of the fan-shaped curved segment and the bottom plate (23) of the rectangular auxiliary segment. The splicing between the outer wall (12), inner wall (13), and bottom plate (14) of the curved segment, as well as the splicing between the side wall (22) and bottom plate (23) of the auxiliary segment, is achieved through the cooperation of the first positioning structure (6) and the second positioning structure (61).

5. A prefabricated module for horizontal bending of cable trenches according to claim 4, characterized in that, The first positioning structure (6) is a protrusion or a groove, and the second positioning structure (61) is a groove or a protrusion.

6. A prefabricated module for horizontal bending of cable trenches according to claim 2, characterized in that, Both the curved segment cover plate (11) and the auxiliary segment cover plate (21) are provided with transparent skylights (7).

7. A prefabricated module for horizontal bending of cable trenches according to claim 6, characterized in that, The transparent skylight (7) includes a protective frame (71) and a transparent panel (72) disposed within the protective frame (71).

8. A prefabricated module for horizontal bending of cable trenches according to claim 2, characterized in that, The base plate limiting structure includes a first base plate limiting structure (5) and a second base plate limiting structure (51) that can cooperate with the first base plate limiting structure (5). The first base plate limiting structure (5) and the second base plate limiting structure (51) are respectively provided on both sides of the fan-shaped curved segment base plate (14) and both sides of the rectangular auxiliary segment base plate (23). The side wall limiting structure includes a first side wall limiting structure (4) and a second side wall limiting structure (41) that can cooperate with the first side wall limiting structure (4). The first side wall limiting structure (4) and the second side wall limiting structure (41) are respectively provided on both sides of the outer side wall (12) of the curved segment, both sides of the inner side wall (13) of the curved segment, and both sides of the auxiliary segment side wall (22).

9. A prefabricated module for horizontal bending of cable trenches according to claim 8, characterized in that, Both the first limiting structure (5) of the base plate and the first limiting structure (4) of the side wall are equipped with sealing waterproof rings, and both the second limiting structure (51) of the base plate and the second limiting structure (41) of the side wall are equipped with anti-collision pads.

10. A prefabricated module for horizontal bending of cable trenches according to any one of claims 2-9, characterized in that: The inner surfaces of the outer wall (12), inner wall (13), and auxiliary wall (22) of the curved segment are provided with several cable supports (3) that can be used for laying cables.

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