A cable tray connecting structure

Abstract

The utility model discloses a cable bridge connecting structure relates to cable bridge technical field, including bridge main part and connecting component, and bridge main part includes first bridge and second bridge, and connecting component includes end connecting piece, first connecting rod and second connecting rod, and both ends of bridge main part are fixedly installed with end connecting piece, and the adjacent bridge main body is connected fixed through connecting component. The utility model can be adapted to horizontal straight butt joint and height difference corner connection scene respectively, need not cutting treatment to bridge on the spot, reduces installation workload greatly, improves construction efficiency, realizes the angle flexible adjustment between the adjacent bridge main body through the sliding fit of end connecting piece and connecting rod, and adapts to the laying path of different height difference, fills the gap at the corner through folding extension board, and effectively protects cable, avoids the influence of external environment.

Description

Technical Field

[0001] This utility model relates to the field of cable tray technology, and in particular to a cable tray connection structure. Background Technology

[0002] Cable trays are indispensable auxiliary components for cable laying in building and industrial electrical systems. Their core function is to provide a safe and reliable support, fixation, and protection for various cables such as power cables and control cables. They can organize and arrange scattered cables, preventing them from becoming tangled or directly exposed. This significantly improves space utilization and effectively isolates them from the effects of external mechanical impacts, dust, moisture, and other environmental factors, reducing the risk of cable wear, short circuits, and other faults. At the same time, they greatly facilitate future cable inspection, maintenance, and capacity expansion.

[0003] In actual installation scenarios, due to factors such as building structure, floor height, and equipment layout, cable tray installation paths often need to accommodate varying heights. To ensure even stress distribution during cable laying and avoid damage from excessive pulling or bending, cable trays must be bent and cut accordingly to accommodate changes in the laying path, achieving a smooth transition between height differences. This makes traditional, standardized cable trays unsuitable for such scenarios. On-site installers must first accurately measure parameters such as the actual installation angle and height difference, then design a customized solution based on this data, followed by precise cutting and port processing. This process not only significantly increases the workload of on-site installers but also directly delays the overall construction progress, becoming a pressing technical problem that needs to be solved in current cable tray installation processes. Utility Model Content

[0004] The purpose of this utility model is to solve the problems mentioned in the background art by proposing a cable tray connection structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A cable tray connection structure includes a cable tray body and a connecting assembly. The cable tray body includes a first cable tray and a second cable tray. The connecting assembly includes an end connector, a first connecting rod, and a second connecting rod. Both ends of the cable tray body are fixedly installed with end connectors. Adjacent cable tray bodies are connected and fixed through the connecting assembly. When the main body of the cable tray is horizontally and straightly connected, the two connected cable tray main bodies are both first cable trays, and the two first cable trays are connected by a first connecting rod. The two ends of the first connecting rod are slidably connected to the end connectors of the two first cable trays respectively, and are locked and fixed by bolts. When the main body of the cable tray needs to be connected at an angle to accommodate height differences, the connected main bodies of the cable tray include two first cable trays in a horizontal straight state and at least one second cable tray in an inclined state. The adjacent cable tray main bodies are connected by a second connecting rod. The two ends of the second connecting rod are slidably connected to the end connectors of the adjacent cable tray main bodies and are locked and fixed by bolts. The second connecting rod achieves angle adjustment between the adjacent cable tray main bodies through sliding cooperation with the end connectors to adapt to the laying path with height differences.

[0006] As a further embodiment of this utility model: when a gap is formed between the second cable tray and the end of the adjacent first cable tray or the second cable tray, a folding extension plate is fixedly installed at the end of the second cable tray, and the folding extension plate is used to fill the gap.

[0007] As a further embodiment of this utility model: the folding expansion plate is a telescopic fan-shaped rigid plate or an elastic material, the shape of which is adapted to the contour of the gap.

[0008] As a further embodiment of this utility model: the end connector is embedded with a slide rail along its own length direction, and a locking nut is slidably assembled in the slide rail; Both the first and second connecting rods are provided with elongated bolt mounting slots extending along their own length. After the bolt passes through the bolt mounting slot, it engages with the corresponding locking nut threadedly to lock and fix the connecting rod to the end connector.

[0009] As a further embodiment of this utility model: the cross-sectional dimension of the second cable tray is larger than that of the first cable tray, and the inner wall of the second cable tray fits against the outer wall of the adjacent first cable tray to accommodate the transition connection at the corner.

[0010] As a further embodiment of this utility model: the first connecting rod is a straight rod, and has a long strip bolt mounting groove along its own length direction for connecting two first cable trays that are horizontally and linearly connected; The second connecting rod is a bent rod used to adapt to the difference in outer wall dimensions between the first and second cable trays. Both ends of the second connecting rod are provided with long strip bolt mounting slots along their own length direction for connecting the first cable tray and the second cable tray or adjacent second cable trays.

[0011] As a further embodiment of this utility model: when the main body of the cable tray is horizontally and linearly connected, the end connector is vertically installed on the side wall of the end of the main body of the cable tray; When the main body of the cable tray needs to be connected at an angle to accommodate the height difference, the end connector is installed on the end side wall of the main body of the cable tray in a horizontal or vertical state according to the preset installation angle, so as to adapt to the angle adjustment requirements of the second link.

[0012] Compared with existing technologies, the advantages of this utility model are as follows: By setting up standardized first cable trays, second cable trays, and adjustable angle connecting components, this utility model can flexibly adapt to the needs of horizontal straight laying and corner laying with height differences, significantly reducing the workload of on-site measurement, cutting, and customization, and improving installation efficiency and adaptability to complex laying paths. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 for Figure 1 A magnified schematic diagram of the partial structure at point A in the middle; Figure 3 for Figure 1 A magnified schematic diagram of the local structure at point B; Figure 4 This is a schematic diagram of the structure of the present invention in a horizontal straight-line docking state; Figure 5 This is a structural schematic diagram of the height difference corner connection state of this utility model.

[0014] In the diagram: 1. Cable tray body; 2. Connecting components; 3. First cable tray; 4. Second cable tray; 5. End connector; 6. First connecting rod; 7. Second connecting rod; 8. Bolt; 9. Folding extension plate; 12. Slide rail; 13. Locking nut; 14. Bolt mounting slot. Detailed Implementation

[0015] 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.

[0016] Reference Figures 1 to 5 A cable tray connection structure includes a cable tray body 1 and a connection component 2. The cable tray body 1 includes a first cable tray 3 for a horizontal straight section and a second cable tray 4 for an inclined transition section. The connection component 2 includes an end connector 5, a first connecting rod 6 and a second connecting rod 7. Adjacent cable tray bodies 1 are connected and fixed through the connection component 2.

[0017] Both the first cable tray 3 and the second cable tray 4 are fixedly installed with end connectors 5. The end connectors 5 are embedded with slide rails 12 along their length direction, and locking nuts 13 are slidably fitted inside the slide rails 12.

[0018] The first connecting rod 6 is used for horizontal straight connection, and the second connecting rod 7 is used for corner connection. The first connecting rod 6 is a straight rod with a long strip bolt mounting groove 14 extending along its length. The second connecting rod 7 is a bent rod with a long strip bolt mounting groove 14 extending along its own length at both ends. The bolt 8 can pass through the bolt mounting groove 14 and cooperate with the locking nut 13 in the slide rail 12 of the end connector 5 to lock and fix the first connecting rod 6, the second connecting rod 7 and the cable tray body.

[0019] Since the bolt 8 can move within the bolt mounting slot 14 and the locking nut 13 can slide within the slide rail 12, the connection position and angle between the connecting rod and the end connector 5 can be adjusted within a certain range.

[0020] When laying horizontal straight lines, such as Figure 4 As shown, two first cable trays 3 are used for end docking. The two ends of the first connecting rod 6 are respectively attached to the end connectors 5 of the two first cable trays 3. The position of the first connecting rod 6 is adjusted, and then the bolt 8 is passed through the bolt mounting groove 14 of the first connecting rod 6, screwed into the corresponding locking nut 13 in the slide rail 12 of the end connector 5 and tightened. This completes the quick connection of the horizontal straight section.

[0021] When laying cables at corners with significant height differences, such as Figure 5 As shown, it is usually necessary to connect one or more inclined second cable trays 4 between two horizontally arranged first cable trays 3. The cross-sectional dimensions of the second cable tray 4 are designed to be slightly larger than those of the first cable tray 3, so that when connected, the inner wall of the second cable tray 4 can fit well with the outer wall of the first cable tray 3 to form a smooth transition. The adjacent cable tray bodies (between the first cable tray 3 and the second cable tray 4, or between two second cable trays 4) are connected by the second connecting rod 7.

[0022] During installation, the two ends of the second connecting rod 7 are respectively attached to the end connectors 5 of the adjacent cable tray body. By utilizing the cooperation between the long bolt mounting slot 14 on the second connecting rod 7 and the sliding locking nut 13 on the end connector 5, the relative position and angle of the second connecting rod 7 and the end connector 5 can be flexibly adjusted, thereby adapting to the angle change between the first cable tray 3 and the second cable tray 4 and achieving a smooth transition of height difference. After adjusting to the appropriate position and angle, it can be locked with bolts 8.

[0023] The installation direction of the end connector 5 can be adjusted as needed. When it is a horizontal straight connection, it is usually installed vertically on the side wall of the cable tray body 1. When it is a corner connection, the end connector 5 can be installed horizontally, vertically or at a specific tilt angle on the end side wall of the cable tray body 1 according to the preset installation angle, so as to better cooperate with the second connecting rod 7 and realize the angle adjustment.

[0024] like Figure 1As shown, at the corner connection, since the second cable tray 4 is in an inclined state, a triangular gap may be generated between its end and the end of the adjacent horizontal or inclined cable tray. For this reason, a folding extension plate 9 is fixedly installed at the end of the second cable tray 4. The folding extension plate 9 can be a retractable fan-shaped rigid plate or made of elastic material, which can be unfolded or stretched according to the shape of the gap, effectively filling the gap and preventing the cable from being stuck or exposed when passing through, thus ensuring laying safety.

[0025] This invention provides a highly flexible and adaptable cable tray connection solution through modular cable tray types (first cable tray, second cable tray) and adjustable connection components (first connecting rod, second connecting rod and end connector with slide rail), which is particularly suitable for laying environments with complex height differences and can significantly improve installation efficiency and quality.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A cable tray connection structure, comprising a cable tray body (1) and a connection assembly (2), characterized in that, The cable tray body (1) includes a first cable tray (3) and a second cable tray (4). The connecting component (2) includes an end connector (5), a first connecting rod (6), and a second connecting rod (7). Both ends of the cable tray body (1) are fixedly installed with end connectors (5). Adjacent cable tray bodies (1) are connected and fixed through the connecting component (2). When the cable tray body (1) is horizontally and straightly connected, the two cable tray bodies (1) connected are both first cable trays (3), and the two first cable trays (3) are connected by a first connecting rod (6). The two ends of the first connecting rod (6) are slidably connected to the end connectors (5) of the two first cable trays (3) respectively, and are locked and fixed by bolts (8). When the cable tray body (1) needs to be adapted to the height difference for corner connection, the docking cable tray body (1) includes two first cable trays (3) in a horizontal straight state and at least one second cable tray (4) in an inclined state, and the adjacent cable tray bodies (1) are connected by a second connecting rod (7). The two ends of the second connecting rod (7) are slidably connected to the end connectors (5) of the adjacent cable tray bodies (1) and locked by bolts (8). The second connecting rod (7) realizes the angle adjustment between the adjacent cable tray bodies (1) through the sliding cooperation with the end connectors (5) to adapt to the laying path with height difference.

2. The cable tray connection structure according to claim 1, characterized in that, When a gap is formed between the second cable tray (4) and the end of the adjacent first cable tray (3) or the second cable tray (4), a folding extension plate (9) is fixedly installed at the end of the second cable tray (4) to fill the gap.

3. The cable tray connection structure according to claim 2, characterized in that, The folding extension plate (9) is a telescopic fan-shaped rigid plate or elastic material, and its shape is adapted to the contour of the gap.

4. The cable tray connection structure according to claim 3, characterized in that, The end connector (5) is embedded with a slide rail (12) along its own length direction, and a locking nut (13) is slidably fitted inside the slide rail (12). The first connecting rod (6) and the second connecting rod (7) are each provided with a long strip bolt mounting groove (14) extending along their own length direction. After the bolt (8) passes through the bolt mounting groove (14), it engages with the corresponding locking nut (13) to lock and fix the connecting rod to the end connector (5).

5. A cable tray connection structure according to claim 4, characterized in that, The cross-sectional dimension of the second cable tray (4) is larger than that of the first cable tray (3), and the inner wall of the second cable tray (4) fits against the outer wall of the adjacent first cable tray (3) to accommodate the transition connection at the corner.

6. The cable tray connection structure according to claim 5, characterized in that, The first connecting rod (6) is a straight rod with a long strip bolt mounting groove (14) along its own length direction for connecting two first cable trays (3) that are horizontally and straight. The second connecting rod (7) is a bent rod used to adapt to the difference in outer wall size between the first cable tray (3) and the second cable tray (4). The two ends of the second connecting rod (7) are respectively provided with long strip bolt mounting grooves (14) along their own length direction for connection between the first cable tray (3) and the second cable tray (4) or adjacent second cable trays (4).

7. A cable tray connection structure according to claim 6, characterized in that, When the main body (1) of the cable tray is horizontally and straight, the end connector (5) is vertically installed on the side wall at the end of the main body (1); When the main body of the cable tray (1) needs to be connected to the corner to accommodate the height difference, the end connector (5) is installed on the end side wall of the main body of the cable tray (1) in a horizontal or vertical state according to the preset installation angle, so as to adapt to the angle adjustment requirements of the second connecting rod (7).

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