A wear-resistant cable laying system for bridge expansion joint areas

Abstract

This application discloses an anti-wear cable laying system for bridge expansion joint areas, comprising: a cable duct; a first roller support assembly disposed within a predetermined range corresponding to the bridge expansion joint area; a second roller support assembly disposed on both sides of the first roller support assembly; the first and second roller support assemblies being installed within the cable duct; the first and second roller support assemblies being used to place signal cables and communication cables. This solution, by installing the first and second roller support assemblies within the cable duct, converts sliding friction into rolling friction through the roller structure, reducing cable surface loss.

Description

Technical Field

[0001] This application relates to the field of cable equipment technology, and in particular to an anti-wear cable laying system for bridge expansion joint areas. Background Technology

[0002] The cables laid on the bridge include communication cables and signal cables, which share a cable tray and are separated by steel partitions to reduce electromagnetic interference. However, during operation, the bridge experiences thermal expansion and contraction due to temperature changes, and vibrations from passing vehicles also cause slight movements in the bridge structure, leading to repeated displacement of the cables within the cable tray. Particularly in the bridge expansion joint area, due to the 30-centimeter height difference between the two sides (one side is steel, the other reinforced concrete), cables easily accumulate at the expansion joint and wear down due to continuous friction, severely affecting cable lifespan and signal transmission reliability, thus impacting the safety of bridge operation. Utility Model Content

[0003] Embodiments of this application provide an abrasion-resistant cable laying system for bridge expansion joint areas.

[0004] To achieve the above objectives, embodiments of this application provide an abrasion-resistant cable laying system for bridge expansion joint areas, comprising:

[0005] Cable trays;

[0006] The first roller support assembly is set within a preset range corresponding to the bridge expansion joint area;

[0007] The second roller support assembly is disposed on both sides of the first roller support assembly;

[0008] The first roller bracket assembly and the second roller bracket assembly are installed in the cable tray; the first roller bracket assembly and the second roller bracket assembly are used to place signal cables and communication cables.

[0009] In one embodiment, the first roller support assembly includes a plurality of first roller units, adjacent first roller units being connected by a connecting plate assembly.

[0010] In one embodiment, the first roller unit includes a first roller, and a first fixing plate and a second fixing plate are respectively connected to both sides of the first roller; at least one of the first fixing plate and the second fixing plate is connected to the cable channel.

[0011] In one embodiment, both the first fixing plate and the second fixing plate are L-shaped plates, with one side of the L-shaped plate connected to the first roller and the other side of the L-shaped plate connected to the cable channel.

[0012] In one embodiment, the connection plate assembly includes at least one first connection plate.

[0013] In one embodiment, the second roller support assembly includes a plurality of second roller units.

[0014] In one embodiment, adjacent second roller units are connected by a second connecting plate.

[0015] In one embodiment, each second roller unit includes a plurality of parallel second rollers, and a third fixing plate and a fourth fixing plate are respectively connected to both sides of all the second rollers; at least one of the third fixing plate or the fourth fixing plate is connected to the cable channel.

[0016] In one embodiment, both the third and fourth fixing plates are L-shaped plates, with one side of the L-shaped plate connected to the second roller and the other side of the L-shaped plate connected to the cable channel.

[0017] In one embodiment, the first roller support assembly and the second roller support assembly are connected by a third connecting plate.

[0018] Compared with the prior art, this application has the following advantages: The solution, by installing a first roller support assembly and a second roller support assembly within the cable tray, converts sliding friction into rolling friction through the roller structure, reducing cable surface loss. Furthermore, the modular design of the first and second roller support assemblies facilitates adjustment of the number and layout of the supports. Moreover, the design of the L-shaped plate and the first, second, and third connecting plates ensures the stability of the first and second roller support assemblies, enabling them to adapt to harsh environments. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the anti-wear cable laying system in the bridge expansion joint area according to an embodiment of this application. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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. Therefore, they should not be construed as limitations on this application.

[0023] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation", "connection" and "joining" should be interpreted broadly, for example, they can refer to fixed connection, detachable connection, or integral connection; for those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0024] 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 indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0025] Reference Figure 1 This application provides an embodiment of an abrasion-resistant cable laying system for bridge expansion joint areas, comprising:

[0026] Cable tray 1;

[0027] The first roller support assembly 2 is set within a preset range corresponding to the bridge expansion joint area;

[0028] The second roller bracket assembly 3 is disposed on both sides of the first roller bracket assembly 2;

[0029] The first roller bracket assembly 2 and the second roller bracket assembly 3 are installed in the cable channel 1; the first roller bracket assembly 2 and the second roller bracket assembly 3 are used to place signal cables and communication cables.

[0030] Specifically, cable tray 1 is typically made of reinforced concrete or steel structure and serves as the installation foundation for the entire system, accommodating the first roller support assembly 2, the second roller support assembly 3, signal cables, and communication cables. Its structure can adopt a U-shaped or rectangular cross-section, possessing sufficient mechanical strength and corrosion resistance to meet the long-term usage requirements of the bridge environment. Furthermore, the surface of cable tray 1 is relatively smooth to prevent cable abrasion.

[0031] The bridge expansion joint area refers to the junction between the steel structure and the reinforced concrete structure, where there is typically a 30-centimeter height difference between the two sides. The preset range can be set according to actual construction needs.

[0032] The first roller support assembly 2 is set within a preset range corresponding to the bridge expansion joint area to support the signal cables and communication cables in that area and allow them to slide axially during bridge expansion and contraction, thereby reducing frictional losses.

[0033] In one embodiment, the first roller support assembly 2 includes a plurality of first roller units 21, and adjacent first roller units 21 are connected by a connecting plate assembly 4.

[0034] Specifically, since the first roller support assembly 2 is set within a preset range corresponding to the bridge expansion joint area, the length of the first roller unit 21 cannot be too long in order to connect at the corresponding location of the bridge expansion joint area.

[0035] The first roller unit 21 includes a first roller 211, and a first fixing plate 212 and a second fixing plate 213 are respectively connected to both sides of the first roller 211; at least one of the first fixing plate 212 and the second fixing plate 213 is connected to the cable channel 1.

[0036] Specifically, the first roller 211 can be a hollow structure with a rotating shaft passing through the middle. The two ends of the rotating shaft are movably connected to the first fixed plate 212 and the second fixed plate 213, respectively, so that the first roller 211 can rotate along its axial direction. At least one of the first fixed plate 212 and the second fixed plate 213 is connected to the cable channel 1 to fix the first roller unit 21 within the cable channel 1, preventing it from moving within the cable channel 1 and thus causing the cable to move. It is understood that both the first fixed plate 212 and the second fixed plate 213 have pre-drilled through holes to fix them to the cable channel 1 with screws. It is also understood that fixing one of the first fixed plates 212 and the second fixed plate 213 to the cable channel 1 achieves the goal of fixing the first roller unit 21 within the cable channel 1, while fixing both the first fixed plate 212 and the second fixed plate 213 to the cable channel 1 provides a more stable fixation of the first roller unit 21 within the cable channel 1.

[0037] In one embodiment, both the first fixing plate 212 and the second fixing plate 213 are L-shaped plates, with one side of the L-shaped plate connected to the first roller 211 and the other side of the L-shaped plate connected to the cable channel 1.

[0038] Specifically, three through holes are made on one side of the L-shaped plate. The rotating shaft inside the first roller 211 passes through the middle through hole, and the through holes at both ends are used to connect the connecting plate assembly 4. Through holes are made on the other side of the L-shaped plate to fix the L-shaped plate to the cable channel 1.

[0039] In one embodiment, the connecting plate assembly 4 includes at least one first connecting plate 41 to accommodate expansion joints of different lengths. The number of first connecting plates 41 is determined by the width of the expansion joint and the length of the first connecting plates 41.

[0040] To make the first roller support assembly 2 more stable, a third connecting plate 6 can be connected between the first roller support assembly 2 and the second roller support assembly 3.

[0041] In one embodiment, the second roller support assembly 3 includes a plurality of second roller units 31.

[0042] Specifically, since the second roller support assembly 3 is located outside the preset range corresponding to the bridge expansion joint area, there is no connection problem. The length of the second roller unit 31 can be set slightly longer, which facilitates installation and maintenance. The second roller support assembly 3 is arranged on both sides of the first roller support assembly 2 to further distribute the stress on the cable and prevent the cable from experiencing local wear due to vibration or displacement in the non-expansion joint area.

[0043] To ensure the stability of the second roller unit 31 within the cable channel 1, a second connecting plate 5 can be connected between adjacent second roller units 31.

[0044] In one embodiment, each second roller unit 31 includes a plurality of parallel second rollers 311, and a third fixing plate 312 and a fourth fixing plate 313 are respectively connected to both sides of all the second rollers 311; at least one of the third fixing plate 312 or the fourth fixing plate 313 is connected to the cable channel 1.

[0045] Both the third fixing plate 312 and the fourth fixing plate 313 are L-shaped plates. One side of the L-shaped plate is connected to the second roller 311, and the other side of the L-shaped plate is connected to the cable channel 1. The structure of the third fixing plate 312 and the fourth fixing plate 313 and their connection with the cable channel 1 are the same as those of the first fixing plate 212 and the second fixing plate 213.

[0046] Specifically, the length of the second roller unit 31 is greater than the length of the first roller unit 21. The second roller unit 31 includes several parallel second rollers 311, each of which can rotate independently to ensure uniform force distribution when the cable moves. The multiple parallel second rollers 311 provide multi-point, multi-directional support, allowing the cable to maintain flexible sliding in non-expansion joint areas of the bridge and avoiding stress concentration.

[0047] The lengths of the first roller bracket assembly 2 and the second roller bracket assembly 3 can be set according to actual needs, and their widths can be set according to the width of the cable channel 1.

[0048] In use, first fix the first roller bracket assembly 2 and the second roller bracket assembly 3 in the cable channel 1, and then lay the cable above the first roller bracket assembly 2 and the second roller bracket assembly 3.

[0049] The anti-wear cable laying system for bridge expansion joint areas provided in this application embodiment reduces cable surface loss by installing a first roller support assembly and a second roller support assembly within the cable duct and converting sliding friction into rolling friction through the roller structure. The modular design of the first and second roller support assemblies facilitates adjustment of the number and layout of supports. Furthermore, the design of the L-shaped plate and the first, second, and third connecting plates ensures the stability of the first and second roller support assemblies, enabling them to adapt to harsh environments.

[0050] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A wear-resistant cable laying system for bridge expansion joint areas, characterized in that, include: Cable tray (1); The first roller support assembly (2) is disposed within a preset range corresponding to the bridge expansion joint area; The second roller bracket assembly (3) is disposed on both sides of the first roller bracket assembly (2); The first roller bracket assembly (2) and the second roller bracket assembly (3) are installed in the cable channel (1); the first roller bracket assembly (2) and the second roller bracket assembly (3) are used to place signal cables and communication cables.

2. The anti-abrasion cable-laying system for bridge joint areas according to claim 1, characterized in that, The first roller support assembly (2) includes a plurality of first roller units (21), and adjacent first roller units (21) are connected by a connecting plate assembly (4).

3. The anti-abrasion cable-laying system for bridge joint areas according to claim 2, characterized in that, The first roller unit (21) includes a first roller (211), and a first fixing plate (212) and a second fixing plate (213) are respectively connected to both sides of the first roller (211); at least one of the first fixing plate (212) and the second fixing plate (213) is connected to the cable channel (1).

4. The anti-wear cable laying system for bridge expansion joint areas according to claim 3, characterized in that, Both the first fixing plate (212) and the second fixing plate (213) are L-shaped plates. One side of the L-shaped plate is connected to the first roller (211), and the other side of the L-shaped plate is connected to the cable channel (1).

5. The anti-abrasion cable routing system for bridge joint areas of claim 2, wherein, The connecting plate assembly (4) includes at least one first connecting plate (41).

6. The anti-abrasion cable routing system for bridge joint areas of claim 1, wherein, The second roller support assembly (3) includes a plurality of second roller units (31).

7. The anti-abrasion cable routing system for a bridge joint area according to claim 6, wherein Adjacent second roller units (31) are connected by a second connecting plate (5).

8. The anti-abrasion cable routing system for bridge joint areas of claim 6, wherein, Each second roller unit (31) includes a plurality of parallel second rollers (311), and a third fixing plate (312) and a fourth fixing plate (313) are respectively connected to both sides of all the second rollers (311); at least one of the third fixing plate (312) or the fourth fixing plate (313) is connected to the cable channel (1).

9. The anti-abrasion cable-laying system for bridge joint areas according to claim 8, characterized in that, Both the third fixing plate (312) and the fourth fixing plate (313) are L-shaped plates. One side of the L-shaped plate is connected to the second roller (311), and the other side of the L-shaped plate is connected to the cable channel (1).

10. The anti-abrasion cable routing system for bridge joint areas of claim 1, wherein, The first roller support assembly (2) and the second roller support assembly (3) are connected by a third connecting plate (6).

Images