A spliced ​​long-span cable tray structure

Abstract

This utility model discloses a spliced ​​long-span cable tray structure, including a cable tray body I, a cable tray body II, hinge components, and fixing components. Both cable tray body I and cable tray body II are truss structures welded together from four horizontally distributed rectangular beams and several reinforcing beams staggered between adjacent beams. Mounting plates I are provided on the right end faces of the four beams of cable tray body I and cable tray body II, and hinge plates I are symmetrically welded at intervals on the right side face of each mounting plate I. Hinges are provided on the left end faces of the two upper beams of cable tray body I and cable tray body II, and these hinges vertically rotate and connect the upper beams of cable tray body I and cable tray body II. Fixing components are provided on the left end faces of the two lower beams of cable tray body I and cable tray body II, and these fixing components lock and fix cable tray body I and cable tray body II in place. This utility model eliminates the need for on-site welding, improving installation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of cable tray technology, specifically to a spliced ​​large-span cable tray structure. Background Technology

[0002] Solar-aquaculture and marine-solar hybrid projects typically require longer cable tray spans, creating a market demand for safe and easy-to-install long-span cable tray structures. Existing truss-type long-span cable trays usually use flange connections, which offer structural strength, but in practical applications, this structure has limitations for complex terrain and long-span requirements. Furthermore, flange connections require significant on-site welding during installation, increasing construction difficulty and potentially causing stress concentration at the connections, thus affecting overall stability and durability. Therefore, existing long-span cable tray technology is insufficient to meet the application requirements of complex environments such as solar-aquaculture and marine-solar hybrid projects, necessitating the development of a safer, more convenient, and more adaptable spliced ​​cable tray structure to address these issues. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a spliced ​​large-span cable tray structure that adopts a screw-in installation method, eliminating the need for on-site welding operations. This avoids stress concentration that could affect the overall stability and durability, while also reducing on-site installation workload and improving installation efficiency.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The innovative feature of this invention is a spliced ​​large-span cable tray structure, comprising a cable tray body I, a cable tray body II, a mounting plate I, a hinge plate I, a hinge assembly, and a fixing assembly; both the cable tray body I and the cable tray body II are truss structures welded and spliced ​​together from four horizontally distributed rectangular beams and several reinforcing beams staggered between adjacent beams, and both are horizontally arranged; mounting plates I are respectively aligned and screwed onto the right end faces of the four beams of the cable tray body I and the cable tray body II, and each mounting plate... On the right side of cable tray body I, vertically and horizontally arranged hinge plates I are symmetrically welded at intervals. On the left end face of the two upper crossbeams of cable tray body I and cable tray body II, hinge components are screwed on respectively. Through the rotational engagement of the hinge components and the corresponding upper hinge plates I, the upper crossbeams of cable tray body I and cable tray body II are vertically rotatably connected. On the left end face of the two lower crossbeams of cable tray body I and cable tray body II, fixing components are vertically rotatably provided. Through the snap-fit ​​engagement of the fixing components and the corresponding lower hinge plates I, the angle-adjusted cable tray body I and cable tray body II are locked and fixed.

[0005] Preferably, both the cable tray body I and the cable tray body II are made of composite materials, and the welding position of each reinforcing beam must ensure that it does not interfere with the connection between the cable tray body I and the cable tray body II.

[0006] Preferably, a rotating shaft I is provided horizontally and vertically on the right side between each pair of adjacent hinge plates I. The two ends of each rotating shaft I are respectively rotatably connected to the corresponding hinge plate I about its own axis, and the two ends of each shaft extend vertically out of the corresponding hinge plate I. The portion of the shaft extending out of the shaft is also provided with an external thread I that matches the nut. Thus, by screwing nuts onto the external threads I at both ends of the rotating shaft I, the rotating shaft I is prevented from detaching from the corresponding hinge plate I.

[0007] Preferably, each of the hinge components includes a mounting plate II and a hinge plate II; the mounting plate II is also screwed and aligned with the left end faces of the two upper crossbeams of the cable tray body I and the cable tray body II, and a hinge plate II is also vertically welded to the middle position of the left side face of each mounting plate II; the setting position of each hinge plate II corresponds to the middle position between the two corresponding hinge plates I, and a hinge hole I matching the rotating shaft I is vertically embedded and opened on the front surface of each hinge plate II relative to the position of the rotating shaft I. After each hinge plate II is inserted parallel between the two corresponding hinge plates I, it is coaxially sleeved on the corresponding rotating shaft I through the hinge hole I, thereby enabling the upper crossbeams of the cable tray body I and the cable tray body II to be vertically rotatably connected.

[0008] Preferably, each of the fixing components includes an L-shaped rod and a rotating shaft II; on the left end position of the four crossbeams of the cable tray body I and the cable tray body II, a positioning hole II matching the rotating shaft II is vertically embedded and penetrated along the horizontal longitudinal direction, and each positioning hole II is located on the right side of the corresponding mounting plate II; on the front and rear surfaces of the two lower crossbeams of the cable tray body II, L-shaped rods are symmetrically arranged horizontally and laterally relative to the positioning hole II, and the left end of each L-shaped rod extends to the left of the plane where the left end face of the corresponding crossbeam of the cable tray body II is located, and the vertical side of each L-shaped rod is respectively aligned with the front and rear surfaces of the corresponding crossbeam. The rotating shafts are fitted together, with their horizontal edges facing away from the corresponding crossbeams. A hinge hole II, matching the positioning hole II, is vertically embedded and penetrates the shafts on their vertical edges relative to the corresponding positioning hole II. Each rotating shaft II passes through the positioning hole II to the front and rear surfaces of the corresponding crossbeam of the cable tray body II, and both ends coaxially pass through the hinge hole II of the corresponding L-shaped rod. An external thread II matching the nut is also provided on the shaft II relative to the outside of the corresponding hinge hole II. Nuts are then screwed onto the external threads II at both ends of the rotating shaft II, allowing the right ends of the two L-shaped rods to be axially connected to the corresponding crossbeam of the cable tray body II around the rotating shaft II.

[0009] Preferably, a groove matching the rotating shaft I is vertically embedded and penetrated on the left end of the vertical side of each L-shaped rod, and each groove is arranged along the length direction of the corresponding L-shaped rod; several toothed grooves matching the rotating shaft I are also sequentially embedded and penetrated on the vertical side of each L-shaped rod relative to the lower part of the corresponding groove, and each toothed groove is vertically penetrated through the vertical side of the corresponding L-shaped rod; the left side of each pair of adjacent L-shaped rods is respectively connected to the lower rotating shaft I of the cable tray body I through the groove between the corresponding hinge plate I and the nut, and during the angle adjustment process of the cable tray body I and the cable tray body II rotating around the two upper rotating shafts I, the two lower rotating shafts I slide along the corresponding grooves and are engaged in the corresponding toothed grooves after the angle adjustment is completed, thereby fixing the cable tray body I and the cable tray body II together after the angle adjustment.

[0010] Preferably, the length of each groove must ensure that the rotation of the cable tray body I and the cable tray body II around the two upper rotating shafts I does not interfere with the rotation. Furthermore, the number and position of the toothed grooves on each L-shaped rod must ensure that the rotating shaft I can be engaged in the corresponding toothed groove after the angle adjustment is completed.

[0011] Preferably, it also includes limiting rings; on the two lower rotating shafts I, U-shaped limiting rings are coaxially sleeved relative to the outer side of the corresponding nut, and on each rotating shaft II, U-shaped limiting rings are coaxially sleeved relative to the outer side of the corresponding nut, with the two open ends of each limiting ring facing downwards; on the horizontal side of each L-shaped rod, a limiting hole matching the limiting ring is vertically embedded and penetrated relative to the open end of each limiting ring, and the two open ends of each limiting ring pass vertically downwards through the corresponding limiting hole. Through the cooperation of the limiting rings, limiting holes, and L-shaped rods, the corresponding nut is limited, thereby preventing the nut from loosening and detaching from the corresponding rotating shaft I or rotating shaft II.

[0012] Preferably, the outer diameter of the right end of each crossbeam of the cable tray body I matches the inner diameter of the left end of the corresponding crossbeam of the cable tray body II, and the inner diameter of the left end of each crossbeam of the cable tray body I matches the outer diameter of the right end of the corresponding crossbeam of the cable tray body II. Furthermore, several positioning holes I, matching the rotating shaft II, are vertically and intermittently embedded along the length direction on the front right side surface of each crossbeam. Each positioning hole I is located on the left side of the corresponding mounting plate I. When no turning is required, the mounting plate I and mounting plate II are removed, and the right end of the crossbeam of the cable tray body I is directly aligned and fitted into the left end of the crossbeam of the cable tray body II. After fine-tuning the insertion position through the positioning holes I, the cable tray body I and cable tray body II are then fixedly connected together in a straight line through the cooperation of the rotating shaft II, nut, positioning holes II, and corresponding positioning holes I.

[0013] The beneficial effects of this utility model are: (1) This utility model adopts a screw-on installation method, which eliminates the need for on-site welding operations, thereby avoiding stress concentration that could affect the overall stability and durability. It also reduces on-site installation workload and improves installation efficiency. (2) This utility model can prepare cable tray bodies of different lengths such as 3m, 4m or 5m, so as to adapt to different span requirements by connecting several cable tray bodies, and at the same time, there is no need to install expansion joints to cope with the stress generated by the thermal expansion and contraction of the cable tray. (3) The angle of this utility model can be adjusted by rotating between the cable tray body I and the cable tray body II, so as to adapt to the situation of cable path turning or height difference between the two ends. Then, by using the L-shaped rod, rotating shaft I, rotating shaft II and nut together, the stability of the connection between the cable tray body I and the cable tray body II after the angle is adjusted is ensured. (4) By setting several toothed grooves side by side on the L-shaped rod, the two rotating shafts I on the lower side can be slid along the corresponding groove and then locked into the corresponding toothed groove according to the included angle between the cable tray body I and the cable tray body II. This not only makes it easier to adjust the angle, but also ensures the stability of the connection between the cable tray body I and the cable tray body II after the angle is adjusted. (5) By setting a limiting ring, this utility model can prevent the nut from falling off due to loosening, thereby ensuring the stability of the connection between the cable tray body I and the cable tray body II; (6) By disassembling the mounting plate I and the mounting plate II, the cable tray body I and the cable tray body II can be directly aligned and inserted together without turning. After avoiding on-site installation deviation through the positioning hole I, the cable tray body I and the cable tray body II are fixedly connected together by the cooperation of the rotating shaft II, nut, positioning hole II and corresponding positioning hole I, thereby achieving a dual-purpose effect and better meeting the needs of the project. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of a spliced ​​large-span cable tray structure according to the present invention.

[0016] Figure 2 for Figure 1 Enlarged schematic diagram of the hinge assembly.

[0017] Figure 3 for Figure 1Enlarged schematic diagram of the fixed component part.

[0018] Among them, 1-Cable tray body I; 2-Positioning hole I; 3-Mounting plate I; 4-Hinge plate I; 5-Rotating shaft I; 6-Nut; 7-Positioning hole II; 8-Hinge assembly; 9-Fixing assembly; 10-Cable tray body II; 81-Mounting plate II; 82-Hinge plate II; 91-L-shaped rod; 92-Slide groove; 93-Gear groove; 94-Rotating shaft II; 95-Limiting ring; 101-Crossbeam; 102-Reinforcing beam. Detailed Implementation

[0019] The technical solution of this utility model will be clearly and completely described below through specific embodiments.

[0020] This utility model discloses a splicing long-span cable tray structure, including a cable tray body I1, a cable tray body II10, a mounting plate I3, a hinge plate I4, a hinge assembly 8, and a fixing assembly 9; the specific structure is as follows: Figures 1-3 As shown, both cable tray body I1 and cable tray body II10 are truss structures welded together from four rectangular horizontally distributed crossbeams 101 and several reinforcing beams 102 staggered between adjacent crossbeams 101. Both cable tray body I1 and cable tray body II10 are made of composite materials, and the welding position of each reinforcing beam 102 must ensure that it does not interfere with the connection between cable tray body I1 and cable tray body II10.

[0021] This utility model provides mounting plates I3 that are aligned and screwed onto the right ends of the four crossbeams 101 of the cable tray body I1 and cable tray body II10. Each mounting plate I3 has a vertically and horizontally arranged hinge plate I4 symmetrically welded to its right side at intervals. Each mounting plate I3 is vertically arranged, and its right side, relative to the outside of the hinge plate I4, has a rectangular mounting hole. Each mounting plate I3 is then screwed onto the right end of the corresponding crossbeam 101 through these holes. Figures 1-3 As shown, a rotating shaft I5 is provided horizontally and vertically on the right side between each pair of adjacent hinge plates I4. The two ends of each rotating shaft I5 are respectively connected to the corresponding hinge plate I4 around its own axis, and the two ends of each shaft I5 extend vertically out of the corresponding hinge plate I4. The portion of the shaft I5 extending out of the corresponding hinge plate I4 is also provided with external threads I that match the nuts 6. The rotating shaft I5 is prevented from detaching from the corresponding hinge plate I4 by screwing nuts 6 onto the external threads I at both ends of the rotating shaft I5.

[0022] This utility model further includes hinge components 8 screwed onto the left ends of the two upper crossbeams 101 of the cable tray body I1 and the cable tray body II10, respectively. Through the rotational engagement of the hinge components 8 and the corresponding upper hinge plates I4, the upper crossbeams 101 of the cable tray body I1 and the cable tray body II10 are vertically and rotatably connected. Each hinge component 8 includes a mounting plate II81 and a hinge plate II82. For example... Figures 1-3 As shown, mounting plates II81 are screwed and aligned to the left end faces of the two upper crossbeams 101 of the cable tray body I1 and the cable tray body II10. A hinge plate II82 is vertically welded to the middle of the left side face of each mounting plate II81. The position of each hinge plate II82 corresponds to the middle position between the two corresponding hinge plates I4. A hinge hole I matching the pivot I5 is vertically embedded and opened on the front surface of each hinge plate II82 relative to the pivot I5. After each hinge plate II82 is inserted parallel between the two corresponding hinge plates I4, it is coaxially sleeved on the corresponding pivot I5 through the hinge hole I, thereby enabling the upper crossbeams 101 of the cable tray body I1 and the cable tray body II10 to be vertically rotatably connected.

[0023] This utility model also features vertically rotatable fixing components 9 on the left end faces of the two lower crossbeams 101 of the cable tray body I1 and cable tray body II10. These fixing components 9 engage with the corresponding lower hinge plates I4 to lock and fix the cable tray body I1 and cable tray body II10 after angle adjustment. Each fixing component 9 includes an L-shaped rod 91, a rotating shaft II 94, and a limiting ring 95. Figures 1-3As shown, on the front surface of the four crossbeams 101 of the cable tray body I1 and the cable tray body II10, at their left ends, positioning holes II7 that match the rotating shaft II94 are vertically embedded and penetrated along the horizontal longitudinal direction. Each positioning hole II7 is located on the right side of the corresponding mounting plate II81. On the lower side of the two crossbeams 101 of the cable tray body II10, L-shaped rods 91 are symmetrically arranged horizontally on their front and rear surfaces relative to the positioning holes II7. The left end of each L-shaped rod 91 extends to the left beyond the plane of the left end face of the corresponding crossbeam 101 of the cable tray body II10. The vertical side of each L-shaped rod 91 is fitted to the front and rear surfaces of the corresponding crossbeam 101, and its horizontal side is also fitted to the left and right sides of the crossbeams 101. All are arranged in a direction away from the corresponding crossbeam 101, and a hinge hole II matching the positioning hole II7 is vertically embedded and opened on their vertical side relative to the position of the corresponding positioning hole II7; each rotating shaft II94 passes through the positioning hole II7 through the front and rear surfaces of the corresponding crossbeam 101 of the cable tray body II10, and its two ends pass through the hinge hole II of the corresponding L-shaped rod 91 coaxially, and an external thread II matching the nut 6 is opened on it relative to the outside of the corresponding hinge hole II. Then, by screwing the nut 6 on the external thread II at both ends of the rotating shaft II94, the right ends of the two L-shaped rods 91 are respectively axially connected to the corresponding crossbeam 101 of the cable tray body II10 around the rotating shaft II94.

[0024] like Figures 1-3 As shown, a groove 92 matching the rotating shaft I5 is vertically embedded and penetrated on the left end of the vertical side of each L-shaped rod 91, and each groove 92 is arranged along the length direction of the corresponding L-shaped rod 91; several toothed grooves 93 matching the rotating shaft I5 are also sequentially embedded and penetrated along the length direction of the vertical side of each L-shaped rod 91 relative to the lower part of the corresponding groove 92, and each toothed groove 93 is vertically penetrated through the vertical side of the corresponding L-shaped rod 91; every two adjacent L-shaped rods 91 The vertical sides on the left side are respectively connected to the corresponding rotating shafts I5 on the lower side of the cable tray body I1 via the sliding grooves 92, relative to the corresponding hinge plate I4 and nut 6. During the angle adjustment process of the cable tray body I1 and the cable tray body II10 rotating around the two rotating shafts I5 on the upper side, the two rotating shafts I5 on the lower side slide along the corresponding sliding grooves 92 respectively, and after the angle adjustment is completed, they are engaged in the corresponding toothed grooves 93, thereby fixing the cable tray body I1 and the cable tray body II10 together after the angle adjustment.

[0025] The length of each groove 92 must ensure that it does not interfere with the rotation of the cable tray body I1 and the cable tray body II10 around the two upper rotating shafts I5, and the number and position of the toothed grooves 93 on each L-shaped rod 91 must ensure that the rotating shaft I5 can be engaged in the corresponding toothed groove 93 after the angle adjustment is completed.

[0026] like Figures 1-3As shown, on the two lower rotating shafts I5, corresponding to the outer side of the nut 6, and on each rotating shaft II 94, corresponding to the outer side of the nut 6, a U-shaped limiting ring 95 is coaxially sleeved with a matching one. The two open ends of each limiting ring 95 are respectively set downward. On the horizontal side of each L-shaped rod 91, a limiting hole matching the limiting ring 95 is vertically inserted and passed through the opening end of each limiting ring 95. The two open ends of each limiting ring 95 pass vertically downward through the corresponding limiting hole. Through the cooperation of the limiting ring 95, the limiting hole, and the L-shaped rod 91, the corresponding nut 6 is limited, thereby preventing the nut 6 from loosening and detaching from the corresponding rotating shaft I5 or rotating shaft II 94.

[0027] like Figures 1-3 As shown, the outer diameter of the right end of each crossbeam 101 of the cable tray body I1 matches the inner diameter of the left end of the corresponding crossbeam 101 of the cable tray body II10, and the inner diameter of the left end of each crossbeam 101 of the cable tray body I1 matches the outer diameter of the right end of the corresponding crossbeam 101 of the cable tray body II10. On the front surface of the right end of each crossbeam 101, several positioning holes I2 that match the rotating shaft II94 are vertically inserted and perforated along its length direction. Each positioning hole I2 is located on the left side of the corresponding mounting plate I3. When no turning is required, the mounting plate I3 and mounting plate II81 are removed, and the right end of the crossbeam 101 of the cable tray body I1 is directly aligned and sleeved into the left end of the crossbeam 101 of the cable tray body II10. After the insertion position is finely adjusted through the positioning holes I2, the cable tray body I1 and the cable tray body II10 are fixedly connected together in a straight line through the cooperation of the rotating shaft II94, nut 6, positioning hole II7 and corresponding positioning hole I2.

[0028] The working principle of this utility model: (1) When a transition is needed First, according to the project requirements, select cable tray body I1 and cable tray body II10 of appropriate length standard sections. Install plate I3 is screwed onto the right ends of the four crossbeams 101 of cable tray body I1, and install plate II81 is screwed onto the left ends of the two upper crossbeams 101 of cable tray body II10. Then, through the cooperation of hinge plate I4, hinge plate II82, rotating shaft I5, and nut 6, the upper crossbeams 101 of cable tray body I1 and cable tray body II10 are rotatably connected. Then, through the cooperation of positioning hole II7, rotating shaft II94, and nut 6, the right ends of the two L-shaped rods 91 are rotatably connected to the left ends of the corresponding lower crossbeams 101 of cable tray body II10. Finally, through the cooperation of rotating shaft I5, hinge plate I4, and nut 6, rotating shaft I5 can slide along the corresponding slide groove 92 to accommodate the rotation between cable tray body I1 and cable tray body II10. Then, the cable tray body I1 and the cable tray body II10 are rotated around the two upper rotating shafts I5. The angle can be adjusted to adapt to the cable path turning or the height difference between the two ends. At this time, the two lower rotating shafts I5 slide along the corresponding slide groove 92 and are engaged in the corresponding toothed groove 93 after the angle adjustment is completed, thereby ensuring the stability of the connection between the cable tray body I1 and the cable tray body II10 after the angle adjustment. (2) When no transition is needed First, select cable tray body I1 and cable tray body II10 of appropriate length standard sections according to project requirements, without the need for screw mounting plates I3 and II81. Then, coaxially fit the right end of the crossbeam 101 of cable tray body I1 into the corresponding left end of the crossbeam 101 of cable tray body II10. After avoiding on-site installation deviation through positioning hole I2, the cable tray body I1 and cable tray body II10 can be aligned and fixed together by the cooperation of rotating shaft II94, nut 6, positioning hole II7 and corresponding positioning hole I2.

[0029] The beneficial effects of this utility model are: (1) This utility model adopts a screw-on installation method, which eliminates the need for on-site welding operations, thereby avoiding stress concentration that could affect the overall stability and durability. It also reduces on-site installation workload and improves installation efficiency. (2) This utility model can prepare cable tray bodies of different lengths such as 3m, 4m or 5m, so as to adapt to different span requirements by connecting several cable tray bodies, and at the same time, there is no need to install expansion joints to cope with the stress generated by the thermal expansion and contraction of the cable tray. (3) The angle of this utility model can be adjusted by rotating between the cable tray body I1 and the cable tray body II10, so as to adapt to the situation of cable path turning or height difference between the two ends. Then, by using the L-shaped rod 91, rotating shaft I5, rotating shaft II94 and nut 6 together, the stability of the connection between the cable tray body I1 and the cable tray body II10 after the angle is adjusted is ensured. (4) By setting several toothed grooves 93 side by side on the L-shaped rod 91, the two rotating shafts I5 on the lower side can be slid along the corresponding sliding grooves 92 and then locked into the corresponding toothed grooves 93 according to the included angle between the cable tray body I1 and the cable tray body II10. This not only makes it easier to adjust the angle, but also ensures the stability of the connection between the cable tray body I1 and the cable tray body II10 after the angle is adjusted. (5) By setting a limiting ring 95, this utility model can prevent the nut 6 from falling off due to loosening, thereby ensuring the stability of the connection between the cable tray body I1 and the cable tray body II10. (6) By disassembling the mounting plate I3 and the mounting plate II81, the cable tray body I1 and the cable tray body II10 can be directly aligned and inserted together without turning. After avoiding on-site installation deviation through the positioning hole I2, the cable tray body I1 and the cable tray body II10 are fixedly connected together by the cooperation of the rotating shaft II94, the nut 6, the positioning hole II7 and the corresponding positioning hole I2, thereby achieving a dual-purpose effect and better meeting the needs of engineering.

[0030] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the concept and scope of the present utility model. Without departing from the design concept of the present utility model, all modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope of the present utility model. The technical content for which protection is sought in the present utility model has been fully recorded in the technical requirements.

Claims

1. A spliced ​​long-span cable tray structure, characterized in that: The system includes a cable tray body I, a cable tray body II, a mounting plate I, a hinge plate I, hinge components, and a fixing component. Both cable tray body I and cable tray body II are truss structures welded together from four horizontally distributed rectangular beams and several reinforcing beams staggered between adjacent beams, all arranged horizontally. Mounting plates I are respectively bolted and aligned to the right end faces of the four beams of cable tray body I and cable tray body II. Vertically arranged hinges are symmetrically welded to the right side face of each mounting plate I at intervals. Plate I; Hinges are screwed onto the left ends of the two upper crossbeams of the cable tray body I and the cable tray body II, and the upper crossbeams of the cable tray body I and the cable tray body II are vertically rotatably connected by the rotational engagement of the hinges and the corresponding upper hinge plate I; Fixing components are also vertically rotatably provided on the left ends of the two lower crossbeams of the cable tray body I and the cable tray body II, and the angle-adjusted cable tray body I and the cable tray body II are locked and fixed by the snap-fit ​​engagement of the fixing components and the corresponding lower hinge plate I.

2. The spliced large-span cable bridge structure according to claim 1, characterized in that: Both cable tray body I and cable tray body II are made of composite materials, and the welding position of each reinforcing beam must ensure that it does not interfere with the connection between cable tray body I and cable tray body II.

3. The spliced long-span cable bridge structure according to claim 1, characterized in that: Between each pair of adjacent hinge plates I, a horizontal and vertical rotating shaft I is provided on the right side. The two ends of each rotating shaft I are respectively rotatably connected to the corresponding hinge plate I around its own axis, and the two ends of each shaft extend vertically out of the corresponding hinge plate I. The portion of the shaft extending out of the shaft is also provided with an external thread I that matches the nut. Nuts are screwed onto the external threads I at both ends of the rotating shaft I to prevent the rotating shaft I from detaching from the corresponding hinge plate I.

4. The spliced long-span cable tray structure according to claim 3, characterized in that: Each of the aforementioned hinge components includes a mounting plate II and a hinge plate II; the mounting plate II is also screwed and aligned with the left end faces of the two upper crossbeams of the cable tray body I and the cable tray body II, and a hinge plate II is also vertically welded to the middle position of the left side face of each of the aforementioned mounting plates II; the setting position of each of the aforementioned hinge plates II corresponds to the middle position between the two corresponding hinge plates I, and a hinge hole I matching the pivot I is vertically embedded and opened on the front surface of each of the aforementioned hinge plates II relative to the pivot I position, and after each hinge plate II is inserted parallel between the two corresponding hinge plates I, it is coaxially sleeved on the corresponding pivot I through the hinge hole I, thereby enabling the upper crossbeams of the cable tray body I and the cable tray body II to be vertically rotatably connected.

5. The spliced long-span cable tray structure according to claim 4, wherein: Each of the aforementioned fixing components includes an L-shaped rod and a rotating shaft II; on the left end position of the four crossbeams of the cable tray body I and the cable tray body II, a positioning hole II matching the rotating shaft II is vertically embedded and penetrated along the horizontal longitudinal direction, and each positioning hole II is located on the right side of the corresponding mounting plate II; on the front and rear surfaces of the two lower crossbeams of the cable tray body II, L-shaped rods are respectively horizontally and symmetrically arranged relative to the positioning hole II, and the left end of each L-shaped rod extends to the left beyond the plane of the left end face of the corresponding crossbeam of the cable tray body II, and the vertical side of each L-shaped rod is respectively attached to the front and rear surfaces of the corresponding crossbeam. The structure is configured such that its horizontal sides are all oriented away from the corresponding crossbeam, and its vertical sides are also vertically embedded with hinge holes II that match the positioning holes II. Each of the rotating shafts II passes through the positioning holes II to the front and rear surfaces of the corresponding crossbeam of the cable tray body II, and its two ends pass coaxially through the hinge holes II of the corresponding L-shaped rods. It also has external threads II that match the nuts on its surface relative to the outside of the corresponding hinge holes II. By screwing nuts onto the external threads II at both ends of the rotating shafts II, the right ends of the two L-shaped rods are axially connected to the corresponding crossbeams of the cable tray body II around the rotating shafts II.

6. The spliced long-span cable tray structure according to claim 5, wherein: On the left end of the vertical side of each L-shaped rod, a groove matching the rotating shaft I is vertically embedded and penetrated, and each groove is arranged along the length of the corresponding L-shaped rod. On the vertical side of each L-shaped rod, several toothed grooves matching the rotating shaft I are sequentially embedded and penetrated along its length below the corresponding groove, and each toothed groove is vertically penetrated through the vertical side of the corresponding L-shaped rod. The left side of each pair of adjacent L-shaped rods is respectively connected to the lower side of the cable tray body I via the groove between the corresponding hinge plate I and the nut. During the angle adjustment process of the cable tray body I and the cable tray body II rotating around the two upper rotating shafts I, the two lower rotating shafts I slide along the corresponding grooves and are engaged in the corresponding toothed grooves after the angle adjustment is completed, thereby fixing the cable tray body I and the cable tray body II together after the angle adjustment.

7. The spliced long-span cable tray structure according to claim 6, wherein: The length of each groove must ensure that it does not interfere with the rotation of the cable tray body I and the cable tray body II around the two upper rotating shafts I, and the number and position of the toothed grooves on each L-shaped rod must ensure that the rotating shaft I can be engaged in the corresponding toothed groove after the angle adjustment is completed.

8. The spliced long-span cable tray structure of claim 6, wherein: It also includes limiting rings; on the two lower rotating shafts I, U-shaped limiting rings are coaxially sleeved relative to the outer side of the corresponding nuts, and on each of the rotating shafts II, U-shaped limiting rings are coaxially sleeved relative to the outer side of the corresponding nuts, with the two open ends of each limiting ring facing downwards; on the horizontal side of each L-shaped rod, a limiting hole matching the limiting ring is vertically embedded and penetrated relative to the open end of each limiting ring, and the two open ends of each limiting ring pass vertically downwards through the corresponding limiting hole. Through the cooperation of the limiting rings, limiting holes, and L-shaped rods, the corresponding nuts are limited, thereby preventing the nuts from loosening and detaching from the corresponding rotating shaft I or rotating shaft II.

9. The spliced long-span cable tray structure of claim 6, wherein: The outer diameter of the right end of each crossbeam of the cable tray body I matches the inner diameter of the left end of the corresponding crossbeam of the cable tray body II, and the inner diameter of the left end of each crossbeam of the cable tray body I matches the outer diameter of the right end of the corresponding crossbeam of the cable tray body II. On the front surface of the right end of each crossbeam, several positioning holes I that match the rotating shaft II are vertically and intersectingly inserted at intervals along its length. Each positioning hole I is located on the left side of the corresponding mounting plate I. When no turning is required, the mounting plate I and mounting plate II are removed, and the right end of the crossbeam of the cable tray body I is directly aligned and fitted into the left end of the crossbeam of the cable tray body II. After the insertion position is finely adjusted through the positioning holes I, the cable tray body I and the cable tray body II are fixedly connected together in a straight line through the cooperation of the rotating shaft II, nut, positioning holes II and corresponding positioning holes I.

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