Cable penetrating device for bridge building

Abstract

The utility model discloses a cable penetrating device for bridge construction, and relates to the technical field of bridge construction, the cable penetrating device comprises a plurality of power distribution pipes and a substrate used for connecting the plurality of power distribution pipes, the power distribution pipes are internally provided with deconcentrators, and the deconcentrators comprise support frames detachably installed in the power distribution pipes. The supporting frame is provided with a plurality of wire grooves for cables to penetrate through, and the connecting direction between any two wire grooves is perpendicular to the axial direction of the power distribution pipe. According to the utility model, the deconcentrator is arranged in the power distribution pipe, and the plurality of wire slots on the deconcentrator are used for separating the cables, so that the problem that the plurality of cables are intertwined in the penetrating process is effectively avoided, and the heat dissipation performance and the penetrating efficiency of the cables are improved.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction technology, specifically to a cable laying device for bridge construction. Background Technology

[0002] In bridge construction, expansion joints are a structural design feature used to address deformations in buildings or structures caused by temperature changes, material shrinkage, expansion, or earthquakes. By pre-setting gaps in the structure, expansion joints allow the building to expand or move freely in the horizontal or vertical direction, thus preventing cracking, deformation, or damage caused by stress concentration.

[0003] In projects requiring cables to pass through expansion joints, a cable-passing device is typically installed beforehand at the joint. This device generally consists of several conduits for passing the cables and a steel plate for connecting these conduits. The specific installation steps are as follows: First, insert the conduits into the expansion joint. Then, fit the steel plate over the conduits. Next, secure the steel plate to the connecting components on the bridge, ensuring a stable installation of the conduits at the expansion joint. After completing these steps, simply pass the cables through the conduits for immediate use. Figure 1 A structural schematic diagram of the installation device is shown, where 101 represents a steel plate, 102 represents a pipe, and 103 represents a connecting component on the bridge.

[0004] However, existing cable-running devices have certain limitations. When multiple cables need to be run through a single conduit, the cables are prone to tangling during the process, as the conduit is a simple hollow structure. This not only leads to poor heat dissipation after the cables are energized, but may also damage the equipment connected to the cables if the heat dissipation problem is not addressed in time.

[0005] To address this issue, we propose a cable routing device for bridge construction. Utility Model Content

[0006] The purpose of this utility model is to solve the problems in the prior art by proposing a cable laying device for bridge construction. This device separates multiple cables during the laying of the same power distribution pipe by setting a splitter on the power distribution pipe. This not only avoids the situation where multiple cables are tangled together, but also provides the space required for cable heat dissipation.

[0007] To solve the above problems, this utility model provides the following technical solution:

[0008] A cable routing device for bridge construction includes a plurality of power distribution pipes and a base plate for connecting the plurality of power distribution pipes. A splitter is provided inside the power distribution pipe, and the splitter includes a support frame that can be detachably installed inside the power distribution pipe. The support frame is provided with a plurality of cable grooves for cable routing, and the connection direction between any two cable grooves is perpendicular to the axis of the power distribution pipe.

[0009] As a further embodiment of this utility model: two support rods are movably arranged on the support frame, and the length directions of the two support rods are both arranged along the same straight line. A driving member is self-lockingly arranged on the support frame between the two support rods. The driving member is used to drive the two support rods to move away from each other so that both support rods can be in contact with the inner wall of the power distribution pipe.

[0010] As a further embodiment of this utility model: a through hole is provided on the support frame between the two support rods, one end of each of the two support rods extends into the through hole, and the other end of each of the two support rods extends to the outer edge of the support frame. A connecting plate is fixedly installed in the through hole, and a driving component is installed on the connecting plate.

[0011] As a further embodiment of this utility model: the driving component includes a threaded rod threadedly mounted on the connecting plate, and the threaded rod is fixedly provided with protrusions that abut against the ends of the two support rods, so that when the protrusions rotate with the threaded rod, the protrusions can drive the two support rods to move away from each other.

[0012] As a further embodiment of this utility model: the two support rods and the driving component together form a quick-release structure, and the quick-release structure is configured in multiple sets.

[0013] As a further embodiment of this utility model: multiple wire troughs are arranged in a circumferential array on the support frame, so that when the support frame is installed inside the power distribution pipe by means of a quick-release structure, the virtual circle formed by the multiple wire troughs is arranged coaxially with the cross-sectional circle of the power distribution pipe.

[0014] As a further embodiment of this utility model, a plurality of rolling balls arranged along the arc direction are circulated inside the groove.

[0015] As a further embodiment of this utility model, the outer edge of the substrate is provided with a plurality of grooves for accommodating bridge connection components.

[0016] As a further embodiment of this utility model: the power distribution pipe is configured as multiple pipes, and the multiple power distribution pipes are arranged in parallel on the substrate.

[0017] As a further embodiment of this utility model, the portion between the wire groove and the support frame is provided with a smooth curve transition.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. By installing a splitter inside the power distribution pipe and using multiple cable slots on the splitter to separate the cables, the problem of multiple cables getting tangled together during installation is effectively avoided, thus improving the heat dissipation performance and installation efficiency of the cables.

[0020] 2. The two support rods on the support frame are self-locking and adjustable through the drive component, which can quickly and tightly contact the inner wall of the power distribution pipe to ensure the stable installation of the splitter, while also facilitating disassembly and maintenance;

[0021] 4. The driving component adopts a combination structure of threaded rod and protrusion. By rotating the threaded rod, the two support rods can be moved simultaneously by relying on the protrusion. It is simple to operate and has high adjustment accuracy, and is suitable for power distribution pipes of different diameters.

[0022] 5. Multiple cable trays are arranged in a circumferential array on the support frame. The virtual circle formed by the multiple cable trays is coaxial with the cross-sectional circle of the power distribution pipe, ensuring uniform cable distribution and avoiding problems such as cable eccentricity or uneven stress. At the same time, under this circumferential array layout design, the radius of the virtual circle formed by the multiple cable trays is the largest. When multiple cable trays contain cables, the distance between the multiple cables is the greatest. This greatest distance can ensure that there is sufficient heat dissipation space between adjacent cables.

[0023] 6. The ball bearings installed in the cable groove can reduce the frictional resistance when the cable is threaded through, making the cable threading smoother and protecting the cable sheath from wear.

[0024] 7. The grooves on the outer edge of the substrate can accommodate the connecting parts of the bridge, which facilitates the fixed connection between the substrate and the connecting parts, and enhances the overall stability and ease of installation of the device.

[0025] 8. The section between the cable tray and the support frame uses a smooth curve transition to avoid damage to the cable caused by sharp angles or edges during installation, further protecting the integrity of the cable. Attached Figure Description

[0026] The present invention will be further described below with reference to the accompanying drawings.

[0027] Figure 1 This is a three-dimensional structural diagram of a penetration device in the prior art;

[0028] Figure 2 This is a front view schematic diagram of the structure of this utility model. Figure 1 ;

[0029] Figure 3 This is a front view schematic diagram of the structure of this utility model. Figure 2 ;

[0030] Figure 4 This is a front view schematic diagram of the power distribution pipe and splitter in this utility model;

[0031] Figure 5 This is a three-dimensional structural diagram of the cam and threaded rod in this utility model.

[0032] In the diagram: 101, steel plate; 102, pipe; 103, connecting component; 1, power distribution pipe; 2, base plate; 3, distributor; 301, support frame; 302, cable tray; 303, support rod; 4, driving component; 401, threaded rod; 402, protrusion; 5, through hole; 6, connecting plate; 7, ball bearing; 8, groove. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0034] like Figures 2-5 As shown, a cable threading device for bridge construction includes a base plate 2 with multiple grooves 8 on its outer edge and several distribution pipes 1 disposed on the base plate 2. Each distribution pipe 1 is equipped with a splitter 3. The accompanying drawings show three distribution pipes 1 arranged in parallel, but the number of distribution pipes 1 is not limited and can be adapted to the actual application scenario. The steps for installing the threading device on an expansion joint are as follows: first, insert the three distribution pipes 1 into the expansion joint; then, fix the base plate 2 onto the three distribution pipes 1; then, adapt and fix the grooves 8 on the base plate 2 to the connecting parts 103 (generally steel bars) on the bridge. During the subsequent threading of multiple cables into the same distribution pipe 1, the splitter 3 separates the multiple cables, preventing entanglement and crossing, thus ensuring the normal operation of the multiple cables.

[0035] The splitter 3 mentioned above is described in detail below:

[0036] The splitter 3 includes a support frame 301 that can be detachably installed inside the power distribution pipe 1. Preferably, after the support frame 301 is installed inside the power distribution pipe 1, it is located at the center of the power distribution pipe 1. The support frame 301 is provided with multiple cable grooves 302 for cables to pass through, and the connecting direction between any two cable grooves 302 is perpendicular to the axis of the power distribution pipe 1. This arrangement is to ensure that the multiple cable grooves 302 are on the same plane of the support frame 301, so that the cable positions on each cable groove 302 are maximized to ensure that the cables have maximum heat dissipation space. At the same time, multiple ball bearings 7 are rolled inside the cable grooves 302 and arranged along their arc direction. The ball bearings 7 can reduce the frictional resistance when the cable is pulled in the cable groove 302, and the rotation of the ball bearings 7 can also assist the movement of the cable.

[0037] To prevent the cable from shifting and causing surface scratches during pulling, this application provides a smooth curve transition between the cable tray 302 and the support frame 301.

[0038] To achieve the detachable installation of the support frame 301 inside the power distribution pipe 1, methods such as snap-fit ​​or abutment can be used. This application uses abutment as an example for explanation:

[0039] Two support rods 303 are movably mounted on the support frame 301, and the length directions of the two support rods 303 are both arranged along the same straight line. The distance between the two support rods 303 can both press against the inner wall of the power distribution pipe 1. The position of the support rods 303 is locked by bolts or the like, thus realizing the installation of the support frame 301 inside the power distribution pipe 1; preferably, as Figure 4 As shown, the straight line direction mentioned above passes through the center of the support frame 301. This design can increase the supporting and pressure-resistant effect of the two support rods 303 on the support frame 301.

[0040] To simultaneously drive the two support rods 303 to move away from each other, this application provides a self-locking drive member 4 on the support frame 301 between the two support rods 303. The drive member 4 drives the two support rods 303 to move away from each other, so that both support rods 303 can be in contact with the inner wall of the power distribution pipe 1. To facilitate the installation of the drive member 4, a through hole 5 is provided on the support frame 301 between the two support rods 303. In this design, one end of each support rod 303 extends into the through hole 5, and the other end of each support rod 303 extends to the outer edge of the support frame 301. A connecting plate 6 is fixedly installed in the through hole 5, and the drive member 4 is mounted on the connecting plate 6. The operation of the drive member 4 can simultaneously drive the two support rods 303 to move away from each other.

[0041] like Figure 4 and Figure 5As shown, specifically, the driving component 4 includes a threaded rod 401 threaded onto the connecting plate 6, and a protrusion 402 fixedly disposed on the threaded rod 401, which abuts against the ends of the two support rods 303. The two ends of the protrusion 402 are protruding portions with smooth curve transitions. When the threaded rod 401 is driven to rotate, the protrusion 402 can move accordingly. Since the ends of the two support rods 303 abut against the protrusion 402, the rotation of the protrusion 402 can drive the two support rods 303 away from each other until the disjointed ends of the two support rods 303 abut against the inner wall of the power distribution pipe 1, achieving abutment installation. This abutment state can be achieved by... Figure 4 This is used to illustrate the concept. It should be noted that, since the rotation of the threaded rod 401 causes the protrusion 402 to have an upward displacement along the through hole 5, the contact thickness between the protrusion 402 and the end of the support rod 303 is greater than the displacement that the protrusion 402 travels after completing the rotation. That is, regardless of whether the rotation angle of the threaded rod 401 is obtuse or acute, the protrusion 402 will always be in contact with the end of the support rod 303.

[0042] In this application, the two support rods 303 and the driving component 4 together form a quick-release structure. Since the length or type of expansion joints in different bridge structures are different, the number of quick-release structures can be set according to the actual application.

[0043] Preferably, multiple cable trays 302 are arranged in a circumferential array on the support frame 301 so that when the support frame 301 is installed inside the power distribution pipe 1 by means of a quick-release structure, the virtual circle formed by the multiple cable trays 302 is arranged coaxially with the cross-sectional circle of the power distribution pipe 1. At this time, the radius of the virtual circle formed by the multiple cable trays 302 is the largest. When cables are placed in the multiple cable trays 302, the distance between the multiple cables is the farthest. This farthest distance can ensure that there is sufficient heat dissipation space between adjacent cables.

[0044] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A cable threading device for bridge construction, characterized in that, The utility model provides a kind of power distribution pipe (1) and the base plate (2) for connecting several power distribution pipes (1) comprising several power distribution pipes (1), and the power distribution pipe (1) is provided with branch distributor (3) inside, and branch distributor (3) includes detachably mounted in power distribution pipe (1) support frame (301), support frame (301) is provided with multiple cable grooves (302) for cable threading on, and the connection direction between any two cable grooves (302) is perpendicular with the axial direction of power distribution pipe (1).

2. The cable threading device for bridge construction according to claim 1, wherein Two support rods (303) are movably arranged on the support frame (301), and the length direction of the two support rods (303) is arranged along the same linear direction, and a self-locking driving member (4) is arranged at the position between the two support rods (303) on the support frame (301), and the driving member (4) is used to drive the two support rods (303) to move away from each other, so that the two support rods (303) can be in contact with the inner wall of the power distribution pipe (1).

3. The cable threading device for bridge construction according to claim 2, wherein A through hole (5) is formed at the position between the two support rods (303) on the support frame (301), one end of the two support rods (303) extends into the through hole (5), and the other end of the two support rods (303) extends to the outer edge of the support frame (301), and a connecting plate (6) is fixedly arranged in the through hole (5).

4. The cable threading device for bridge construction according to claim 3, wherein The driving member (4) includes a threaded rod (401) screwed on the connecting plate (6), and protrusions (402) are fixedly arranged on the threaded rod (401) and in contact with the ends of the two support rods (303), so that when the protrusions (402) rotate with the threaded rod (401), the protrusions (402) can drive the two support rods (303) to move away from each other.

5. A cable threading device for bridge construction according to claim 3 or 4, characterised in that The two support rods (303) and the driving member (4) together form a quick release structure, and the quick release structure is arranged in multiple groups.

6. The cable threading device for a bridge construction according to any one of claims 1 to 4, characterized in that The multiple cable grooves (302) are arranged in a circumferential array on the support frame (301), so that when the support frame (301) is installed inside the power distribution pipe (1) by the quick release structure, the virtual circle formed by the multiple cable grooves (302) is coaxially arranged with the cross-sectional circle of the power distribution pipe (1).

7. The cable threading device for bridge construction according to any one of claims 1 to 4, wherein A plurality of rolling balls (7) are arranged in the cable groove (302) along the arc direction.

8. The cable threading device for bridge construction according to any one of claims 1 to 4, wherein A plurality of grooves (8) are formed in the outer edge of the base plate (2) for accommodating the bridge connecting components (103).

9. The cable threading device for bridge construction according to any one of claims 1 to 4, wherein The power distribution pipe (1) is arranged in multiple, and the multiple power distribution pipes (1) are arranged in parallel on the base plate (2).

10. The cable threading device for bridge construction according to any one of claims 1 to 4, wherein The part between the cable groove (302) and the support frame (301) is smoothly and curvilinearly transitioned.

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