A tie beam structure for a fabricated cable trench

Abstract

The utility model discloses a kind of connection beam structures for fabricated cable trench, including connection beam main part and flange plate, connection beam main part is square tube structure, and the bottom surface both sides of connection beam main part are equipped with extended supporting edge;The flange plate is rectangular structure, and the middle of flange plate is equipped with square boss, after square boss is inserted into the end of connection beam main part, both are welded and fixed as an organic whole;The four corners of the flange plate are equipped with sunken groove, and assembling hole is equipped in sunken groove.The utility model connection beam main part and flange plate are all aluminum alloy material, greatly reduce the component weight, not only convenient transportation, reduce the human and equipment burden in transportation process, also reduce the construction difficulty when on-site installation, can guarantee that connection beam has enough bearing capacity, meet the support demand of cable trench.

Description

Technical Field

[0001] This utility model belongs to the field of cable trench technology, and specifically relates to a connecting beam structure for prefabricated cable trenches. Background Technology

[0002] In numerous fields such as power, telecommunications, and rail transportation, the laying and securing of cables is crucial. Cable trenches, underground corridors, and urban utility tunnels are all underground conduits used for laying and replacing power or telecommunications cables, and they also serve as the enclosure structures for the cables being laid. These structures contain numerous cable supports to hold the cables in place. Cable supports are mounted on uprights, and a fixed connecting beam is typically installed between opposing uprights. This connecting beam, as a vital structural component, plays a crucial role in connection and support, and its performance directly affects the overall stability and service life of the cable trench.

[0003] In the construction of cable trenches, tie beams, as key structural components, have long relied primarily on steel for their material selection. A typical tie beam constructed mainly of steel usually comprises three core parts: a central main beam serving as the primary load-bearing component, solid connecting steel plates welded to both ends, and triangular reinforcing plates to enhance node stiffness and stability. However, this seemingly robust traditional design has revealed a series of significant drawbacks in actual engineering applications, posing serious challenges to construction efficiency and cost control.

[0004] First, the inherent high density of steel directly leads to a significant increase in the weight of the connecting beams and the overall structure. This not only greatly increases the difficulty and cost of transferring components between the factory and the construction site, but also causes great inconvenience in the on-site hoisting, handling, and precise positioning processes, increasing the input of manpower and machinery.

[0005] Secondly, this structural form relies heavily on the welding of multiple independent components, resulting in a large amount of welding work and a long processing time. Each connecting beam requires numerous welds, significantly extending the factory prefabrication or on-site processing cycle. Simultaneously, the positional relationship of the multiple components demands extremely high welding precision. However, factors such as thermal deformation and human error during the welding process make precise positioning difficult to achieve consistently, easily leading to dimensional deviations and deformations.

[0006] Moreover, the heavy components make on-site positioning extremely difficult, and the dimensional deviations and deformations accumulated during the initial welding further exacerbate the problems of inaccurate alignment and mismatch during on-site installation. Construction workers often need to spend a lot of time on-site correction, grinding, and even rework, which not only seriously slows down the construction progress, increases labor costs and safety risks, but may also affect the final structural performance and long-term reliability due to forced installation or improper correction.

[0007] In summary, although traditional steel cable trench connecting beams meet basic strength requirements, their inherent defects in material properties and manufacturing processes have become key bottlenecks restricting construction efficiency, increasing project costs, and affecting final quality, urgently requiring breakthroughs through material innovation and structural optimization. Utility Model Content

[0008] To address the aforementioned issues, this invention provides a connecting beam structure for prefabricated cable trenches, which features lightweight, high strength, and excellent corrosion resistance, while also improving assembly efficiency.

[0009] Therefore, the technical solution of this utility model is: a connecting beam structure for prefabricated cable trenches, including a connecting beam body and a flange. The connecting beam body is a square tube structure, and extended support edges are provided on both sides of the bottom surface of the connecting beam body. The flange is a rectangular structure, and a square protrusion is provided in the middle of the flange. After the square protrusion is inserted into the end of the connecting beam body, the two are welded and fixed together. The four corners of the flange are provided with recessed grooves, and assembly holes are provided in the recessed grooves.

[0010] Based on the above scheme and as a preferred embodiment of the above scheme: the bottom surface of the main body of the connecting beam is provided with multiple drainage holes.

[0011] Based on the above scheme and as a preferred embodiment of the above scheme: the main body of the connecting beam has an extension edge on one side of its top surface, and the extension edge has several cable fixing holes.

[0012] Based on the above scheme and as a preferred embodiment of the above scheme: the cross-sectional dimensions of the main body of the connecting beam are 100mm×60mm, the wall thickness is 1-3mm, the support edge width is 15-30mm, and the extension edge width is 5-15mm.

[0013] Based on the above scheme and as a preferred embodiment of the above scheme: the cross-sectional dimensions of the flange are 150~200mm×90~120mm, and the thickness is 10-30mm; the cross-sectional dimensions of the square protrusion in the middle of the flange are consistent with the inner cross-sectional dimensions of the main body of the connecting beam, and the protrusion height is 3-6mm.

[0014] Based on the above scheme and as a preferred embodiment of the above scheme: the square protrusion of the flange is an open structure, and a weight reduction groove is provided on the side of the flange away from the main body of the connecting beam.

[0015] Based on the above scheme and as a preferred embodiment of the above scheme: the recessed groove of the flange is a square groove, and a square decorative cap is provided at the recessed groove.

[0016] Based on the above scheme and as a preferred embodiment of the above scheme: the main body of the connecting beam is an integrally formed aluminum alloy profile, the flange is a die-cast aluminum alloy component, and both surfaces are coated with an anti-corrosion protective layer.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] Both the main body of the connecting beam and the flange are made of aluminum alloy. The main body of the connecting beam is a square tube, and the flange has a hollow center and weight-reducing grooves on the sides, which significantly reduces the weight of the components. This not only facilitates transportation and reduces the burden on manpower and equipment during transportation, but also reduces the difficulty of on-site installation. At the same time, aluminum alloy has high structural strength, and combined with the square tube structure design, it can ensure that the connecting beam has sufficient load-bearing capacity to meet the support requirements of the cable trench.

[0019] The main body of the connecting beam and the surface of the flange are coated with an anti-corrosion protective layer, which can effectively resist the erosion of humid and corrosive media environments. This solves the problems of traditional steel connecting beams being prone to rust and requiring frequent maintenance, reduces maintenance costs, extends the service life of the connecting beam, and ensures the long-term stable operation of the cable trench.

[0020] The connecting beam has extended support edges on both sides of its bottom surface, which can be used to lay the base plate, providing stable support for the base plate and ensuring the integrity of the cable trench bottom structure. The connecting beam also has an extended edge on one side of its top surface, with several cable fixing holes. Cables can be securely fixed through these holes to prevent displacement, ensuring the neatness and safety of the cable laying.

[0021] The bottom surface of the connecting beam is equipped with multiple drainage holes, which helps to drain the water accumulated in the cable trench in a timely manner, avoids the water accumulation from causing adverse effects on the connecting beam and other components, and improves the overall moisture-proof performance of the cable trench.

[0022] The square decorative caps located at the flange recess not only protect bolts and other connecting parts, but also enhance the aesthetics of the structure. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is an exploded view of the parts of this utility model;

[0025] Figure 3 This is a schematic diagram of the main structure of the connecting beam of this utility model;

[0026] Figure 4 This is a schematic diagram of the structure of the flange of this utility model;

[0027] Figure 5 This is an installation diagram of the present invention;

[0028] Figure 6 for Figure 5 A structural sectional view.

[0029] The following are marked in the figure: main body of connecting beam 1, support edge 11, extension edge 12, cable fixing hole 13, drainage hole 14, flange 2, square protrusion 21, sinkhole 22, assembly hole 23, open structure 24, weight reduction groove 25, base plate 3, decorative cap 4. Detailed Implementation

[0030] In the description of this utility model, it should be noted that the directional terms such as "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this utility model.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" or "a number" means two or more, unless otherwise explicitly specified.

[0032] See the attached drawings. The connecting beam structure for prefabricated cable trenches described in this embodiment includes a connecting beam body 1 and a flange 2. The connecting beam body 1 is a square tubular profile extruded from aluminum alloy, and its surface is coated with an anti-corrosion protective layer. The cross-sectional dimensions of the connecting beam body 1 are 100mm × 60mm, and the wall thickness is 1-3mm. Extending straight support edges 11 are provided on both sides of the bottom surface of the connecting beam body 1. The straight support edges 11 are integrally formed with the connecting beam body 1, and the width of the support edges 11 is 15-30mm, used to support the bottom plate 3 of the cable trench together with the adjacent connecting beam bodies 1.

[0033] The main body of the connecting beam 1 has an extension edge 12 on one side of its top surface. The extension edge 12 is also integrally formed with the main body of the connecting beam 1. The width of the extension edge 12 is 5-15mm. Multiple cable fixing holes 13 with a spacing of 50-150mm are opened on the extension edge 12 by stamping process for installing cable fixing parts (such as straps or buckles) to prevent the cable from moving.

[0034] The bottom surface of the main body 1 of the connecting beam has three drainage holes 14 with a spacing of 50-150mm made by stamping process, which helps to drain the water accumulated in the cable trench in time and avoid the water accumulation from causing adverse effects on the connecting beam and other components.

[0035] The flange 2 is made of aluminum alloy, integrally die-cast, and coated with an anti-corrosion protective layer. The flange 2 has a square structure with a cross-sectional dimension of 150-200mm × 90-120mm and a thickness of 10-30mm. A square protrusion 21 is located in the center of the flange 2. The cross-sectional dimension of the square protrusion 21 is consistent with the inner cross-sectional dimension of the connecting beam body 1, allowing the square protrusion 21 to be inserted precisely into the end of the connecting beam body 1 (the opening of the square tube). The height of the square protrusion 21 is 3-6mm. After insertion, the two are welded together and then subjected to anti-corrosion treatment. The square protrusion 21 of the flange has an open structure 24 in the center, and a weight-reducing groove 25 is provided on the side of the flange 2 away from the connecting beam body 1, which can significantly reduce the weight of the flange 2. The four corners of the flange 2 have recessed grooves 22, each containing mounting holes 23 for bolt connection to the column. In addition, to improve aesthetics, a decorative cap 4 can be installed. The decorative cap 4 has a square structure and can be fastened to the sink 22 to cover the bolts.

[0036] During installation, the flange 2 is fixed to the columns on both sides of the cable trench with bolts. After it is fixed, the decorative cap 4 is attached to the sink trough 22. Then the bottom plate 3 of the cable trench is placed on the support edge 11 of the two adjacent connecting beams. The cable is fixed through the cable fixing hole 13 of the top extension edge 12 to prevent displacement.

[0037] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A connecting beam structure for prefabricated cable trenches, characterized in that: It includes a connecting beam body and a flange. The connecting beam body is a square tube structure with extended support edges on both sides of the bottom surface of the connecting beam body. The flange is a rectangular structure with a square protrusion in the middle. After the square protrusion is inserted into the end of the connecting beam body, the two are welded together. The flange has recessed grooves at its four corners, and assembly holes are provided in the recessed grooves.

2. The connecting beam structure for prefabricated cable trenches as described in claim 1, characterized in that: The bottom surface of the connecting beam is provided with multiple drainage holes.

3. The connecting beam structure for prefabricated cable trenches as described in claim 1, characterized in that: The main body of the connecting beam has an extension edge on one side of its top surface, and several cable fixing holes are provided on the extension edge.

4. A connecting beam structure for prefabricated cable trenches as described in claim 3, characterized in that: The main body of the connecting beam has a cross-sectional dimension of 100mm×60mm, a wall thickness of 1-3mm, a support edge width of 15-30mm, and an extension edge width of 5-15mm.

5. A connecting beam structure for prefabricated cable trenches as described in claim 4, characterized in that: The flange has a cross-sectional dimension of 150~200mm×90~120mm and a thickness of 10-30mm; the cross-sectional dimension of the square protrusion in the middle of the flange is consistent with the inner cross-sectional dimension of the main body of the connecting beam, and the protrusion height is 3-6mm.

6. A connecting beam structure for prefabricated cable trenches as described in claim 1, characterized in that: The square protrusion of the flange is an open structure, and a weight-reducing groove is provided on the side of the flange away from the main body of the connecting beam.

7. A connecting beam structure for prefabricated cable trenches as described in claim 1, characterized in that: The recessed groove of the flange is a square groove, and a square decorative cap is provided at the recessed groove.

8. A connecting beam structure for prefabricated cable trenches as described in claim 1, characterized in that: The main body of the connecting beam is an integrally formed aluminum alloy profile, and the flange is a die-cast aluminum alloy component, both of which are coated with an anti-corrosion protective layer.

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