A cable tray installation structure across the roof

Abstract

This utility model discloses a cable tray installation structure spanning a roof, including a first steel ladder for the roof of a first factory building, a second steel ladder for the roof of a second factory building, a cable tray, a truss, and fixing connectors. The truss spans between the first and second steel ladders and is fixed to both ladders via the fixing connectors. The cable tray is positioned above the truss. Compared with existing technologies, this utility model fixes the truss structure for the cable tray onto the steel ladder structure, solving the problem of requiring separate columns for the truss in traditional solutions. This saves on the number of truss columns, reduces cable path length, lowers costs, makes construction more convenient, and offers strong operability and wide applicability.

Description

Technical Field

[0001] This utility model relates to a cable tray installation structure, specifically a cable tray installation structure spanning a roof. Background Technology

[0002] Currently, when the power collection lines of rooftop distributed photovoltaic projects need to pass between multiple rooftops, truss structures are required as cable trays for support. A typical truss structure consists of an upper truss tie rod structure and a lower column and foundation. This type of structure uses a large amount of steel and has a high cost, especially when the roof is very high, requiring the use of larger cross-section columns, which significantly increases the cost. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a convenient and low-cost installation structure for cable trays across rooftops.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A cable tray installation structure spanning a roof includes a steel ladder (first) for the roof of a first factory building, a steel ladder (second) for the roof of a second factory building, a cable tray, a truss, and fixing connectors; the truss spans between the first and second steel ladders, and the truss is fixed to the first and second steel ladders by the fixing connectors; the cable tray is positioned above the truss.

[0006] The fixed connector includes a U-bolt, an end plate, and a nut. The connection between the truss and steel ladder one and steel ladder two is located inside the opening of the U-bolt and is fixed by the end plate.

[0007] The steel ladder and steel ladder II have the same structure, both being beam-column system steel structure components; the beam-column system steel structure components consist of steel ladder columns, steel ladder beams, steel ladder treads, and steel ladder handrails.

[0008] The connection between the steel ladder one, steel ladder two and the truss is the horizontal member at the upper end of the steel ladder column.

[0009] The truss includes a horizontal strut system; the centerline of the horizontal strut system of the truss is aligned with the centerline of the steel ladder beam.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. This utility model features a truss-integrated rooftop steel ladder structure. By using shared columns, it reduces the number of steel columns and lowers costs while meeting usage requirements and structural safety. In traditional independent column solutions, the steel used in truss columns accounts for over 40% of the total cost, while this utility model can reduce steel usage by 25%-30% (taking a 10m span roof as an example) through shared columns.

[0012] 2. The truss is fixed to the steel ladder structure using U-bolt connectors. Compared with the traditional welding method, this method can be used in areas where welding is prohibited and has a wider range of applications.

[0013] 3. By installing trusses and cable trays on the upper part of the columns of the steel ladder structure, the installation method is simple and standardized, and has wider applicability. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the connection between the steel ladder and the truss.

[0016] Figure 3 It is a three-dimensional schematic diagram of the connection between the steel ladder and the truss.

[0017] Figure 4 This is an enlarged schematic diagram of the connection between the steel ladder and the truss.

[0018] Figure 5 This is a schematic diagram of a fixed connector.

[0019] In the diagram, 1-cable tray, 2-truss, 3-fixed connector, 31-U-bolt, 32-end plate, 32-nut, 4-steel ladder column; 5-steel ladder beam; 6-steel ladder tread; 7-steel ladder handrail; 8-roof surface;

[0020] 100 - Factory Building 1; 200 - Factory Building 2; 300 - Steel Ladder 1; 400 - Steel Ladder 2; 500 - Connecting Platform for Steel Ladder 1; 600 - Connecting Platform for Steel Ladder 2. Detailed Implementation

[0021] The present invention will now be described in detail with reference to the accompanying drawings:

[0022] like Figure 1-4 As shown, the utility model of a roof-spanning cable tray support truss installation structure includes a steel ladder 300 for the roof of Factory Building 1 (100), a steel ladder 400 for the roof of Factory Building 2 (200), a cable tray 1, a truss 2, and fixing connectors 3. The truss 2 spans between the steel ladders 300 and 400 and is fixed to both ladders 300 and 400 via the fixing connectors 3. The cable tray 1 is positioned above the truss 2. The steel ladder 1 connecting platform 500 connects the steel ladder 300 to the roof of Factory Building 1 (100), providing access to the roof of Factory Building 1 (100); the steel ladder 2 connecting platform 600 connects the steel ladder 400 to the roof of Factory Building 2 (200), providing access to the roof of Factory Building 2 (200).

[0023] Steel ladder 1 (300) and steel ladder 2 (400) have the same structure, both being beam-column system steel structural components, consisting of steel ladder columns 4, steel ladder beams 5, steel ladder treads 6, and steel ladder handrails 7. The loads of the truss 2 and the steel ladder act together on the steel ladder columns 4.

[0024] like Figure 5 As shown, the fixed connector 3 includes a U-bolt 31, an end plate 32, and a nut 33. The U-bolt 31 passes through the horizontal member at the upper end of the truss 2 and the steel ladder column 4 to connect them tightly. The open end of the U-bolt 31 is fitted into the end plate 32 to press against the bottom surface of the horizontal member at the upper end of the steel ladder column 4. The nut 33 is used to tighten the tail of the U-bolt 31.

[0025] The centerline of the horizontal tie rod of truss 2 must be aligned with the centerline of the steel ladder beam 5 of the steel ladder, with an allowable deviation of ≤5mm, to ensure that the U-bolt 31 is effectively clamped.

[0026] The frame dimensions of truss 2 and the steel ladder are corresponding, and the alignment of the horizontal members gives the truss connection good stability.

[0027] The horizontal members at the top of the truss 2 and the steel ladder column 4 are connected by using a clamping fastener 3. The U-bolt 31 is secured with a double nut anti-loosening structure (including a flat washer and a spring washer) after the open end passes through the end plate 32. The bolt surface is hot-dip galvanized. Rubber gaskets are added to the contact surface between the end plate 32 and the horizontal members at the top of the steel ladder column 4 to avoid metal friction corrosion.

[0028] This utility model combines a truss structure with a roof-mounted steel ladder structure. By using shared columns, it reduces the number of steel columns and lowers costs while meeting usage requirements and structural safety. The truss is fixed to the steel ladder structure using U-bolt connectors, which, compared to traditional welding methods, can be used in areas where welding is prohibited, thus offering wider applicability.

Claims

1. A cable tray installation structure across a roof, characterized by: It includes a steel ladder 1 for the roof of the upper factory building 1, a steel ladder 2 for the roof of the upper factory building 2, a cable tray, a truss, and fixing connectors; the truss spans between the steel ladder 1 and the steel ladder 2, and the truss is fixed to the steel ladder 1 and the steel ladder 2 by fixing connectors; the cable tray is placed above the truss.

2. The roof-crossing cable tray installation structure according to claim 1, characterized in that: The fixed connector includes a U-bolt, an end plate, and a nut. The connection between the truss and steel ladder one and steel ladder two is located inside the opening of the U-bolt and is fixed by the end plate.

3. The roof-crossing cable tray installation structure according to claim 2, characterized in that: The steel ladder and steel ladder II have the same structure, both being beam-column system steel structure components; the beam-column system steel structure components consist of steel ladder columns, steel ladder beams, steel ladder treads, and steel ladder handrails.

4. The roof-crossing cable tray installation structure according to claim 3, characterized in that: The connection between the steel ladder one, steel ladder two and the truss is the horizontal member at the upper end of the steel ladder column.

5. The roof-crossing cable tray installation structure according to claim 3, characterized in that: The truss includes a horizontal strut system; the centerline of the horizontal strut system of the truss is aligned with the centerline of the steel ladder beam.

Images