Assembly type cable bridge

Abstract

The utility model belongs to the technical field of cable bridges, and particularly relates to an assembly type cable bridge which comprises a connecting well used for being connected with bridge piers and straight line sections connected to the two sides of the connecting well, the connecting well and the straight line sections are each of a hollow frame structure, and supporting components used for being connected with cables are arranged on the inner walls of the connecting well and the straight line sections. A limiting lock is further included, the limiting lock comprises a base and a handle rod in threaded connection with the base, and the base is fixedly connected to the top of the linear section. According to the utility model, rapid assembly of the connecting well and the straight line segment is realized through a very simple structure, the cost is low, the connection stability is ensured, and the construction efficiency of the cable bridge is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of cable tray technology, specifically to an assembled cable tray. Background Technology

[0002] Prefabricated cable trays are cable support systems based on a modular design concept, which involve factory-prefabricated standardized components and rapid on-site assembly. All core components are prefabricated in the factory through standardized design and industrialized production. On-site installation only requires bolt connections or clips for fixation, achieving efficient construction and quality control of the cable laying system.

[0003] Currently, when cable trays cross rivers, lakes, or seas, laying cables underwater is complex and carries a higher risk of operational accidents. Therefore, cable bridge technology is generally adopted, which involves laying cable trays on bridges, thus saving on the cost of cable laying channels.

[0004] Since some cable trays are currently installed on the piers of bridges, the connection between the cable trays and the piers requires additional prefabricated supports, which increases the cost of the cable trays and makes construction less convenient. Therefore, some companies consider building a connection well (i.e., a prefabricated support, also known as a prefabricated cable well) on the piers first, and then connecting the prefabricated support to the straight sections of the cable trays by bolts, welding, etc.

[0005] However, this construction method is still not convenient enough in actual operation, affecting the construction progress, and the disassembly and assembly during maintenance is also relatively troublesome. Therefore, this application proposes a prefabricated cable tray that is more convenient to construct. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a prefabricated cable tray, which solves the problem of inconvenience in the installation and construction of current cable trays and bridge piers.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a prefabricated cable tray, comprising a connecting well for connecting bridge piers and straight sections connected to both sides of the connecting well. Both the connecting well and the straight sections are hollow frame structures. Supporting components for connecting cables are provided on the inner walls of both the connecting well and the straight sections. The tray also includes a limiting lock, which includes a base and a handle threadedly connected to the base. The base is fixedly connected to the top of the straight section.

[0008] This method enables rapid assembly of connecting wells and straight sections with a very simple structure, ensuring connection stability while maintaining low cost and significantly improving the construction efficiency of cable trays.

[0009] Preferably, both the connecting well and the straight section are rectangular frame structures. The connecting well includes a first top plate and a first side plate, and the straight section includes a second top plate, a second side plate, and a bottom plate. The base is fixedly connected to the second top plate.

[0010] Preferably, the handle includes an integrally connected limiting head and a handle, and a stud is fixedly connected to the lower part of the handle.

[0011] Preferably, the second top plate is provided with a first waist-shaped hole, and the limiting lock also includes a nut.

[0012] Preferably, the supporting member is an angle steel, which is fixedly connected to the side plate.

[0013] Preferably, a vertically arranged mounting plate is fixedly connected to the inner wall of the first side plate, and the cable tray also includes a pre-embedded connecting plate embedded in the bottom surface of the bridge pier, wherein the pre-embedded connecting plate is threadedly connected to the mounting plate.

[0014] Preferably, the mounting plate has an L-shaped or U-shaped axial section, and the mounting plate has a second waist-shaped hole on its side wall. The pre-embedded connecting plate includes a vertical plate and a pre-embedded plate fixed to the bottom of the vertical plate. The vertical plate is threadedly connected to the mounting plate.

[0015] Preferably, it also includes a corner plate, which is located at the angle between each adjacent plate.

[0016] Preferably, the outer wall of the second side plate is also provided with mutually perpendicular stiffening ribs and stiffening plates, the second top plate, the second side plate and the stiffening plate are mutually perpendicular, and the two side edges of the first side plate are located within the plate surface of the stiffening plate.

[0017] Preferably, the first top plate is also provided with several lifting rings.

[0018] Compared with the prior art, this utility model provides a prefabricated cable tray, which has the following advantages:

[0019] This prefabricated cable tray uses a very simple structure to achieve rapid assembly of connecting wells and straight sections, ensuring connection stability while keeping costs low and significantly improving the construction efficiency of cable trays. Attached Figure Description

[0020] Figure 1 This is a front view of the structure of a prefabricated cable tray.

[0021] Figure 2 This is a three-dimensional structural view of a prefabricated cable tray.

[0022] Figure 3 This is a three-dimensional structural diagram of a limit lock in a prefabricated cable tray.

[0023] Figure 4 This is a three-dimensional structural diagram of the connecting well in a prefabricated cable tray.

[0024] In the diagram: A, bridge pier;

[0025] 1. Connecting well; 11. First top plate; 111. First oblong hole; 12. First side plate; 13. Mounting plate; 131. Second oblong hole;

[0026] 2. Straight section; 21. Second top plate; 22. Second side plate; 23. Bottom plate;

[0027] 3. Supporting components;

[0028] 4. Limit lock; 41. Base; 42. Handle; 421. Limit head; 422. Handle; 423. Stud; 424. Nut;

[0029] 5. Embedded connecting plate; 51. Vertical plate; 52. Embedded plate;

[0030] 6. Angle plate; 7. Stiffening rib; 8. Stiffening plate; 9. Hanging ring. Detailed Implementation

[0031] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] The current connecting well, also known as a prefabricated cable well, is an assembled support in a cable tray used to connect with a bridge pier. This is an existing technical concept, and there are various ways to implement it in the existing technology. It should be understood that the specific implementation method of the connecting well is not limited in this technical solution, but aims to describe the assembly method between the connecting well and the straight section in the cable tray.

[0033] Example 1:

[0034] Please see Figure 1-4 The present invention provides the following technical solution: a prefabricated cable tray, including a connecting well 1 for connecting a bridge pier A and a straight section 2 connected to both sides of the connecting well 1. Both the connecting well 1 and the straight section 2 are hollow frame structures. The inner walls of the connecting well 1 and the straight section 2 are provided with support members 3 for connecting cables. It also includes a limit lock 4. The limit lock 4 includes a base 41 and a handle 42 threadedly connected to the base 41. The base 41 is fixedly connected to the top of the straight section 2.

[0035] As an optional implementation of this utility model, during construction, the connecting well 1, as a prefabricated component, can be pre-embedded and built in the bridge pier A. When assembling the cable tray, it is only necessary to align the straight section 2 with the two openings at both ends of the connecting well 1, and then turn the handle 42 so that the handle 42 and the top of the straight section 2 clamp the top of the connecting well 1 to complete the assembly. The construction is completed in one step without any other additional operations, which is very convenient and greatly reduces the construction time during assembly and maintenance. Since the entire cable tray needs to carry cables, in the prior art, cable trays are basically hollow frame structures. Therefore, the connecting well 1 and the straight section 2 are also hollow frame structures. It should be understood that the top of the connecting well 1 and the straight section 2 both have plate-like structures, such as the first top plate 11 and the second top plate 21 described later. Their own structure enables the handle 42 to clamp the top of the connecting well 1 between the top of the straight section 2.

[0036] In this technical solution, the straight section 2 and the connecting well 1 are quickly clamped together by the limit lock 4. This is similar to the docking between two pipes. Therefore, the diameter of the connecting well 1 can be larger than the diameter of the straight section 2, or the top of the connecting well 1 can extend outward. Both of these methods can support the implementation of this technical solution. These two methods are also common in the field of pipe docking, so this technical solution will not elaborate on them.

[0037] The threaded connection between the handle 42 and the base 41 causes the gap between the handle 42 and the top surface of the straight section 2 to gradually decrease during the tightening process. Therefore, the tightened handle 42 exerts a clamping force on the top of the connecting well 1, ensuring the connection firmness and stability of the cable tray after assembly. This technical solution does not further limit the specific number of limit locks 4.

[0038] This method enables the rapid assembly of connecting well 1 and straight segment 2 with a very simple structure, ensuring connection stability while maintaining low cost and significantly improving the construction efficiency of cable trays.

[0039] Example 2:

[0040] Please see Figure 1-4 The present invention provides the following technical solution: a prefabricated cable tray, including a connecting well 1 for connecting a bridge pier A and a straight section 2 connecting both sides of the connecting well 1. Both the connecting well 1 and the straight section 2 are rectangular frame structures. The connecting well 1 includes a first top plate 11 and a first side plate 12. The straight section 2 includes a second top plate 21, a second side plate 22 and a bottom plate 23.

[0041] Angle steel for connecting cables is provided on the inner walls of both the connecting well 1 and the straight section 2. The angle steel is fixedly connected to the side plate and also includes a limit lock 4. The limit lock 4 includes a base 41 and a handle 42 threadedly connected to the base 41. The base 41 is fixedly connected to the second top plate 21.

[0042] Furthermore, the handle 42 includes an integrally connected limiting head 421 and handle 422, with a stud 423 fixedly connected to the lower part of the handle 422, and a first waist-shaped hole 111 provided on the second top plate 21. The limiting lock 4 also includes a nut 424.

[0043] As one possible implementation of this utility model, as mentioned above, the connecting well 1 and the straight segment 2 are generally hollow frame structures in the prior art. Of course, a rectangular frame structure is also one of the more common implementation methods.

[0044] In this technical solution, the further limitation of the limit lock 4 makes the connection position between the limit lock 4 and the straight segment 2 adjustable, that is, the installation position between the straight segment 2 and the connecting well 1 is adjustable. In actual construction, the spacing between piers A is different in different bridges. At present, the components of the prefabricated cable tray are produced in a standardized manner. Therefore, there is a situation where the straight segment 2 is difficult to install between the two connecting wells 1. Therefore, the design of the first waist-shaped hole 111 can solve this problem.

[0045] The length direction of the first oblong hole 111 is not limited in this technical solution; it can be parallel to the length direction of the cable tray or it can be oblique. Furthermore, multiple holes can be designed on the base 41, and screws can be passed through different holes before connecting to nuts 424, allowing the limit lock 4 to be assembled at different positions on the first oblong hole 111 to support the realization of this function.

[0046] Furthermore, a vertically arranged mounting plate 13 is fixedly connected to the inner wall of the first side plate 12. The cable tray also includes a pre-embedded connecting plate 5 embedded in the bottom surface of the pier A. The pre-embedded connecting plate 5 is threadedly connected to the mounting plate 13. The axial section of the mounting plate 13 is L-shaped or U-shaped. A second waist-shaped hole 131 is provided on the side wall of the mounting plate 13. The pre-embedded connecting plate 5 includes a vertical plate 51 and a pre-embedded plate 52 fixed to the bottom of the vertical plate 51. The vertical plate 51 is threadedly connected to the mounting plate 13.

[0047] As an optional implementation of this utility model, further simplification of the prefabrication process can be achieved by further defining the connecting well 1: the pre-embedded connecting plate 5 is pre-cast onto the pier A, and the upright plate 51 and the mounting plate 13 are then assembled during the cable tray installation. This eliminates the need for additional construction during the pre-casting process, avoiding prolonged pouring time that could affect the curing process of the concrete in the pier A (due to the possibility of damaging the uncured concrete during operation due to excessive construction time). Furthermore, the design of the second oblong hole 131 during the assembly of the connecting well 1 and the straight section 2 allows for adjustable bolt fixing positions between the upright plate 51 and the mounting plate 13, preventing the inability to assemble the connecting well 1 and the pier A if the bottom surface of the pier A is uneven.

[0048] Furthermore, it also includes corner plates 6, which are located at the angles between adjacent plates.

[0049] As an optional implementation of this utility model, the angle plate 6 is generally used in the prior art to improve the overall strength of steel components, and this technical solution is also like that. As for the specific position setting of the angle plate 6, the principles have been extensively revealed in engineering, and it can also be done as follows: Figure 2 The installation will be carried out as shown in the diagram, and this technical solution will not elaborate further on this.

[0050] Furthermore, the outer wall of the second side plate 22 is provided with mutually perpendicular stiffening ribs 7 and stiffening plates 8. The second top plate 21, the second side plate 22 and the stiffening plate 8 are mutually perpendicular, and the two side edges of the first side plate 12 are located within the plate surface of the stiffening plate 8.

[0051] As an optional implementation of this utility model, the stiffening ribs 7 and stiffening plates 8 are also used to improve the overall strength of the cable tray. For the first side plate 12 (i.e. the edges of both ends of the connecting well 1) aligned with the stiffening plate 8, it is because the connection between the connecting well 1 and the straight section 2 is only limited by the limit lock 4, which can ensure that the straight section 2 and the connecting well 1 will not be embedded, thus ensuring the assembly effect between the two.

[0052] Furthermore, the first top plate 11 is also equipped with several lifting rings 9 to facilitate the placement of the connecting well 1 during assembly and construction.

[0053] The working principle and usage process of this utility model are as follows: When the bridge is erected, the pre-embedded connecting plate 5 is pre-cast on the bottom surface of the pier A. After solidification, the assembled connecting well 1 is placed in place by a crane, so that the mounting plate 13 is aligned with the upright plate 51. The position of the connecting well 1 is fixed by bolts. After the limit lock 4 is selected in a suitable position, the base 41 is fixed by bolts passing through the first waist-shaped hole 111. The straight section 2 is aligned with both sides of the connecting well 1, and the first top plate 11 is located on the second top plate 21. The handle is turned so that the second top plate 21 and the limit head 421 clamp the first top plate 11, thereby completing the assembly. The cable can then be passed through the cable tray (or the cable can be passed through first and then the cable tray is assembled).

[0054] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A prefabricated cable tray, comprising a connecting well for connecting to bridge piers and straight sections connecting both sides of the connecting well, wherein both the connecting well and the straight sections are hollow frame structures, and the inner walls of both the connecting well and the straight sections are provided with supporting components for connecting cables, characterized in that, It also includes a limit lock, which includes a base and a handle threadedly connected to the base, the base being fixedly connected to the top of the straight segment.

2. The assembled cable tray according to claim 1, characterized in that, Both the connecting well and the straight section are rectangular frame structures. The connecting well includes a first top plate and a first side plate. The straight section includes a second top plate, a second side plate, and a bottom plate. The base is fixedly connected to the second top plate.

3. A prefabricated cable tray according to claim 2, characterized in that, The handle includes an integrally connected limiting head and a handle, and a stud is fixedly connected to the lower part of the handle.

4. A prefabricated cable tray according to claim 3, characterized in that, The second top plate is provided with a first waist-shaped hole, and the limiting lock also includes a nut.

5. A prefabricated cable tray according to claim 4, characterized in that, The supporting component is an angle steel, which is fixedly connected to the side plate.

6. A prefabricated cable tray according to claim 2, characterized in that, A vertically arranged mounting plate is also fixedly connected to the inner wall of the first side plate. The cable tray also includes a pre-embedded connecting plate embedded in the bottom surface of the bridge pier. The pre-embedded connecting plate is threadedly connected to the mounting plate.

7. A prefabricated cable tray according to claim 6, characterized in that, The mounting plate has an L-shaped or U-shaped axial section. The mounting plate has a second waist-shaped hole on its side wall. The pre-embedded connecting plate includes a vertical plate and a pre-embedded plate fixed to the bottom of the vertical plate. The vertical plate is threadedly connected to the mounting plate.

8. A prefabricated cable tray according to claim 2, characterized in that, It also includes corner plates, which are placed at the angles between adjacent plates.

9. A prefabricated cable tray according to claim 2, characterized in that, The outer wall of the second side plate is also provided with mutually perpendicular stiffening ribs and stiffening plates. The second top plate, the second side plate and the stiffening plate are mutually perpendicular, and the two side edges of the first side plate are located within the plate surface of the stiffening plate.

10. A prefabricated cable tray according to claim 2, characterized in that, The first top plate is also equipped with several lifting rings.

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