A distribution box fixing and rain shelter device on a city railway bridge

Abstract

The utility model discloses a kind of urban area railway bridge distribution box fixed and rain shelter device, the device includes box frame, channel steel foundation and levelling device, the box frame is installed on balustrade concrete foundation by the levelling device, the horizontal both sides of balustrade concrete foundation top are each equipped with balustrade embedded steel plate, balustrade embedded bolt is fixed on the balustrade embedded steel plate, the channel steel foundation is respectively equipped in the horizontal both sides of the box frame bottom, the through hole that is cooperated with the balustrade embedded bolt is opened in the channel steel foundation, the channel steel foundation is fixed with the cooperation of nut and the balustrade embedded bolt between the balustrade embedded steel plate.The utility model has the advantages that: for the installation of distribution box in the track arrangement method ballastless track laying of urban area railway bridge section, it provides fixed and rain shelter device, structure is simple, easy to disassemble and assemble, it can be recycled, improve the field construction efficiency and safety, reduce cost, improve engineering benefit.

Description

Technical Field

[0001] This utility model relates to the technical field of urban railway bridges, and in particular to a device for fixing and sheltering electrical distribution boxes on urban railway bridges. Background Technology

[0002] In the construction of high-speed railways and urban rail transit, the laying of ballastless track is a crucial process to ensure the high smoothness and stability of the line. This process typically employs large gantry cranes for the hoisting and laying of materials such as sleepers and rails. The gantry cranes need to move on the bridge deck relying on pre-installed running rails and corresponding support devices. During this process, the proper arrangement and fixation of the power distribution boxes supplying power to the gantry cranes and other construction equipment along the line is an important link in ensuring continuous, efficient, and safe construction.

[0003] Currently, there are two main methods for fixing electrical distribution boxes when laying ballastless tracks on bridges: one is to use a special bracket to support them on the bridge deck; the other is to use straps or wires to fix them to the already installed bridge railings. These methods can meet basic safety requirements under normal working conditions.

[0004] However, in actual construction, especially in the initial stage of ballastless track laying, the following special working conditions are encountered at the construction site, causing traditional fixing methods to fail: 1. Extremely limited working space on the bridge: Because the traveling rails and support frames of the gantry crane occupy most of the effective width of the bridge deck, the space left for other construction equipment and personnel to pass through becomes very narrow. Under these circumstances, if the distribution box is still supported by brackets, it will further compress the already tight space, seriously hinder the passage of construction vehicles and personnel, and even affect the normal movement of the gantry crane.

[0005] 2. Lack of fixed anchor points: Ballastless track laying is often one of the earliest procedures carried out after the main structure of the bridge is completed, and the bridge railings are usually not installed yet. This makes the most common fixing method of "tying to the railings" impossible to implement.

[0006] Under these dual constraints, construction workers are often forced to temporarily and haphazardly place electrical distribution boxes in cable trenches on both sides of the bridge or directly on the bridge deck.

[0007] Therefore, there is a need for a device to fix and protect electrical boxes on urban railway bridges from rain that can solve the above problems. Summary of the Invention

[0008] The purpose of this utility model is to address the shortcomings of the prior art by providing a device for fixing and protecting electrical distribution boxes on urban railway bridges. This device consists of a box-type frame, a channel steel foundation, and a leveling device, providing favorable support for the installation, fixing, and safe use of the electrical distribution boxes.

[0009] The objective of this utility model is achieved through the following technical solution: A device for fixing and sheltering electrical distribution boxes on urban railway bridges includes a box-shaped frame, channel steel foundations, and a leveling device. The box-shaped frame is installed on a concrete foundation for a railing via the leveling device. Pre-embedded steel plates for the railing are provided on both sides of the top of the concrete foundation, and pre-embedded bolts are fixed to the pre-embedded steel plates. The channel steel foundations are located on both sides of the bottom of the box-shaped frame, and through holes are provided on the channel steel foundations to mate with the pre-embedded bolts. The channel steel foundations and the pre-embedded steel plates are fixed together by nuts engaging with the pre-embedded bolts.

[0010] The box-shaped frame includes a bottom transverse main beam, a bottom longitudinal main beam, columns, a top transverse main beam, and a top longitudinal main beam. There are two bottom transverse main beams arranged longitudinally, and the two bottom transverse main beams are connected by at least two bottom longitudinal main beams. There are two top transverse main beams arranged longitudinally, and the two top transverse main beams are connected by at least two top longitudinal main beams. The bottom transverse main beams and the top transverse main beams are connected by four columns.

[0011] The two uprights located at the back of the box-shaped frame are connected by lateral stiffening at the back, and the two uprights arranged in opposite longitudinal directions are connected by longitudinal stiffening at the sides.

[0012] The top of the column located at the back of the box frame is higher than the top of the column located at the front of the box frame. The top longitudinal main beam is inclined and a rainproof roof plate is installed on the top longitudinal main beam.

[0013] The top transverse main beam and the bottom transverse main beam located at the back of the box frame are connected by X-shaped wind braces.

[0014] The leveling device consists of several shims or a pair of wedges with bevels.

[0015] The advantages of this utility model are: it provides a fixing and rainproof device for the installation of the distribution box in the ballastless track laying method of urban railway bridge section, which is simple in structure, easy to disassemble and assemble, and reusable, thereby improving on-site construction efficiency and safety, reducing costs, and improving project benefits. Attached Figure Description

[0016] Figure 1 This is an elevation view of the electrical distribution box fixing and rain shelter device on the urban railway bridge of this utility model; Figure 2 This is a plan view of the electrical distribution box fixing and rain shelter device on the urban railway bridge of this utility model; Figure 3 This is a side view of the electrical distribution box fixing and rain shelter device on the urban railway bridge of this utility model; Figure 4 This is a schematic diagram of the installation of the electrical distribution box fixing and rain shelter device on the urban railway bridge of this utility model; like Figures 1-4 As shown in the figure, the markings represent: 1. Channel steel foundation; 2. Bottom transverse main beam; 3. Bottom longitudinal main beam; 4. Column; 5. Top transverse main beam; 6. Top longitudinal main beam; 7. Back transverse stiffener; 8. Side longitudinal stiffener; 9. Guardrail embedded steel plate; 10. Guardrail embedded bolt; 11. Nut; 12. Leveling device; 13. Wind brace; 14. Rain shelter top plate; 15. Guardrail concrete foundation; 16. Distribution box. Detailed Implementation

[0017] The features of this utility model and other related features will be further described in detail below with reference to the accompanying drawings and embodiments, so as to facilitate the understanding of those skilled in the art: Example: Figures 1-4 As shown, this embodiment relates to a device for fixing and sheltering a distribution box on a municipal railway bridge. The device mainly includes a box-shaped frame, a channel steel foundation 1, and a leveling device 12. The box-shaped frame is installed on the concrete foundation 15 of the railing via the leveling device 12. The leveling device 12 is used to level the box-shaped frame. In this embodiment, the leveling device 15 is composed of several shims of different thicknesses to achieve leveling of the box-shaped frame. Alternatively, the leveling device 15 can be a pair of wedges with inclined surfaces. By horizontally moving the lower wedge, the upper inclined surface of the lower wedge slides relative to the lower inclined surface of the upper wedge, thereby achieving leveling of the box-shaped frame. On both sides of the top of the concrete foundation 15 of the railing, there are railing embedded steel plates 9. Railing embedded bolts 10 are fixed on the railing embedded steel plates 9. The railing embedded bolts 10 are set vertically and have external threads. Channel steel foundations 1 are respectively set on both sides of the bottom of the box frame. The opening of the channel steel foundation 1 faces downward. The channel steel foundation 1 has through holes that cooperate with the railing embedded bolts 10. The through holes allow the railing embedded bolts 10 to pass through. The channel steel foundation 1 and the railing embedded steel plates 9 are fixed by the cooperation of nuts 11 and railing embedded bolts 10. The internal thread of the nut 11 cooperates with the external thread of the railing embedded bolt 10 to fix the box frame.

[0018] like Figures 1-3As shown, the box frame includes a bottom transverse main beam 2, a bottom longitudinal main beam 3, columns 4, a top transverse main beam 5, a top longitudinal main beam 6, a back transverse stiffener 7, a side longitudinal stiffener 8, a wind brace 13, and a rain shelter 14. There are two bottom transverse main beams 2 arranged longitudinally, and the two bottom transverse main beams 2 are connected by three bottom longitudinal main beams 3. There are two top transverse main beams 5 arranged longitudinally, and the two top transverse main beams 5 are connected by three top longitudinal main beams 6. The bottom transverse main beams 2 and the top transverse main beams 5 are connected by four columns 4, which are arranged in a rectangular shape. The top of the column 4 located at the back of the box frame is higher than the top of the column 4 located at the front of the box frame. The top longitudinal main beam 6 is inclined, and a rain shelter 14 is installed on the top longitudinal main beam 6 for rain protection. The two uprights 4 (one set) located at the back of the box frame are connected by a rear transverse stiffener 7, and the two uprights (two sets) located in opposite longitudinal directions are connected by a side longitudinal stiffener 8, which serves to reinforce the structure. The top transverse main beam 5 and the bottom transverse main beam 2 located at the back of the box frame are connected by an X-shaped wind brace 13, which serves to reinforce the structure and reduce the damage caused by strong winds.

[0019] like Figures 1-4 As shown, this embodiment also includes the following installation method: After welding the bottom transverse main beam 2 and the longitudinal main beam 3, weld them to the channel steel foundation 1. Then weld the column 4 and the side longitudinal stiffener 8 to the bottom transverse main beam 2. Next, weld the back transverse stiffener 7 to the column 4. Then weld the top transverse main beam 5 to the top longitudinal main beam 6 and the rain shelter plate 14, and then weld them to the column 4. Finally, weld the wind brace 13 to the top transverse main beam 5 and the bottom transverse main beam 2 to form the distribution box fixing and rain shelter device. After the bridge railing foundation concrete 15 is completed and reaches the design strength, place the fixing and rain shelter device and the distribution box 16 according to the design spacing of the distribution box. Adjust it with the leveling device 12 until the level of the distribution box fixing and rain shelter device meets the requirements and tighten the nuts 11 to achieve the requirements of safe, stable and reliable installation of the distribution box 16.

[0020] The beneficial technical effects of this embodiment are as follows: it provides a fixing and rainproof device for the installation of the distribution box in the ballastless track laying method of urban railway bridge section. The structure is simple, easy to disassemble and assemble, and can be recycled, which improves the on-site construction efficiency and safety, reduces costs, and enhances project benefits.

Claims

1. A device for fixing and protecting electrical distribution boxes on urban railway bridges, characterized in that... The device includes a box-shaped frame, a channel steel foundation, and a leveling device. The box-shaped frame is installed on the concrete foundation of the railing via the leveling device. Pre-embedded steel plates for the railing are provided on both sides of the top of the concrete foundation, and pre-embedded bolts for the railing are fixed to the pre-embedded steel plates. The channel steel foundation is located on both sides of the bottom of the box-shaped frame, and through holes are provided on the channel steel foundation to mate with the pre-embedded bolts. The channel steel foundation and the pre-embedded steel plates are fixed together by nuts engaging with the pre-embedded bolts.

2. The device for fixing and protecting electrical distribution boxes on urban railway bridges as described in claim 1, characterized in that... The box-shaped frame includes a bottom transverse main beam, a bottom longitudinal main beam, columns, a top transverse main beam, and a top longitudinal main beam. There are two bottom transverse main beams arranged longitudinally, and the two bottom transverse main beams are connected by at least two bottom longitudinal main beams. There are two top transverse main beams arranged longitudinally, and the two top transverse main beams are connected by at least two top longitudinal main beams. The bottom transverse main beams and the top transverse main beams are connected by four columns.

3. The device for fixing and protecting electrical distribution boxes on urban railway bridges as described in claim 2, characterized in that... The two uprights located at the back of the box-shaped frame are connected by lateral stiffening at the back, and the two uprights arranged in opposite longitudinal directions are connected by longitudinal stiffening at the sides.

4. The device for fixing and protecting electrical distribution boxes on urban railway bridges as described in claim 2, characterized in that... The top of the column located at the back of the box frame is higher than the top of the column located at the front of the box frame. The top longitudinal main beam is inclined and a rain shelter plate is installed on the top longitudinal main beam.

5. A device for fixing and protecting electrical distribution boxes on urban railway bridges as described in claim 2, characterized in that... The top transverse main beam and the bottom transverse main beam located at the back of the box frame are connected by X-shaped wind braces.

6. The device for fixing and protecting electrical distribution boxes on urban railway bridges as described in claim 1, characterized in that... The leveling device consists of several shims or a pair of wedges with bevels.

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