Telescopic expansion type cable bridge

Abstract

The utility model belongs to the technical field of cable bridges, and particularly relates to a telescopic expansion type cable bridge which comprises a main bridge body, a T-shaped block fixedly connected to the bottom surface of the main bridge body, a T-shaped block slidably connected to a top sliding groove of an extension bridge body, a limiting block connected to the top surface of the main bridge body in a sleeved mode, and a side block connected to the longitudinal end surface of the inner wall of a bridge cover plate. The surface of the side block is connected to the upper section of the longitudinal end of the extending bridge in an embedded mode, the bottom of the bridge cover plate is fixedly connected with a bottom block, and a clamping head is arranged on one side of the bottom block. According to the utility model, through the mutual cooperation of the main bridge, the T-shaped blocks, the extension bridge, the extension grooves, the threaded pipes, the screws, the threaded grooves, the bridge cover plates, the limiting blocks, the side blocks, the bottom blocks and the clamping heads, the extension bridge contracted on the surface of the main bridge can be pulled out according to use scenes and use requirements, so that the length of cable bridging can be adjusted in a telescopic manner; therefore, cable laying requirements in different scenes can be met, and the efficiency and convenience of cable laying work can be improved.

Description

Technical Field

[0001] This utility model belongs to the field of cable tray technology, specifically relating to a retractable and expandable cable tray. Background Technology

[0002] Cable trays are used to lay cables. They serve as installation channels for horizontal and vertical cabling systems, allowing cables to be laid in an orderly manner and eliminating the risks of high and low voltage and electromagnetic interference.

[0003] The existing cable tray structures have relatively fixed lengths. However, in use, equipment is frequently updated and production layouts are often adjusted. With upgrades and renovations, it may be necessary to add or move some electrical equipment, requiring adjustments to the length of the cable trays. At the same time, when laying cables, it is necessary to accurately measure the length to be laid and then cut the cable trays according to the measurement results. This process not only consumes a lot of time and effort, but measurement errors and cutting deviations may also cause problems such as inaccurate splicing of the cable trays, seriously affecting the overall efficiency and quality of cable laying work. Utility Model Content

[0004] The purpose of this invention is to provide a retractable cable tray, which addresses the problem that existing cable trays have relatively fixed lengths. However, in practice, equipment is frequently updated and production layouts are often adjusted. Upgrades and renovations may require the addition or relocation of electrical equipment, necessitating adjustments to the cable tray length. Furthermore, when laying cables, it is necessary to accurately measure the required length before cutting the cable tray. This process is not only time-consuming and labor-intensive, but measurement errors and cutting deviations may also lead to inaccurate cable tray splicing, seriously affecting the overall efficiency and quality of cable laying.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a retractable cable tray, comprising a main cable tray, a T-shaped block fixedly connected to the bottom surface of the main cable tray, the bottom of the T-shaped block slidably connected to the top groove of the extension cable tray, extension grooves laterally opened on both sides of the longitudinal end of the extension cable tray, threaded tubes provided at the intersection of the extension grooves and the extension cable tray on both sides, dustproof brushes adhered to the surface of the extension cable tray on both sides of the extension grooves, the threads on the surface of the threaded tubes being threadedly connected to the threaded grooves by a screw, the threaded grooves being opened on the longitudinal end surface of the main cable tray, the top of the main cable tray abutting against a cable tray cover plate, a limiting block connected to the bottom surface of the transverse end of the cable tray cover plate, the surface of the limiting block being sleeved on the top surface of the main cable tray, a side block connected to the longitudinal end surface of the inner wall of the cable tray cover plate, the surface of the side block being fitted and connected to the upper section of the longitudinal end of the extension cable tray, a bottom block fixedly connected to the bottom of the cable tray cover plate, and a snap-fit ​​connector provided on one side of the bottom block.

[0006] As a preferred embodiment of the retractable cable tray of this utility model, the extended cable tray has a U-shaped integrated structure.

[0007] As a preferred embodiment of the retractable cable tray of this utility model, two sets of threaded grooves are respectively opened on both sides of the longitudinal end of the main cable tray, and the threaded grooves are opened at the intersection of the extension groove and the main cable tray.

[0008] As a preferred embodiment of the retractable cable tray of this utility model, the lateral end surface of the extended cable tray is provided with two sets of "T"-shaped grooves, and the shape and size of the grooves are adapted to the T-shaped blocks.

[0009] As a preferred embodiment of the retractable cable tray of this utility model, the two sets of dustproof brushes are respectively located on both sides of the extended cable tray surface, and the dustproof brushes are located outside the extended groove.

[0010] As a preferred embodiment of the retractable cable tray of this utility model, an "L"-shaped cavity is formed between the cable tray cover plate and the limiting block, and the shape and size of the "L"-shaped cavity are adapted to the opening end at the intersection of the main cable tray and the extension cable tray.

[0011] As a preferred embodiment of the retractable cable tray of this utility model, a snap-fit ​​connector is provided on one side of the base block, a row of semi-circular rubber strips is provided at the bottom of the snap-fit ​​connector, and a snap-fit ​​groove adapted to the shape and size of the snap-fit ​​connector is provided on the other side of the base block.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] Through the cooperation of the main cable tray, T-block, extension cable tray, extension groove, threaded pipe, screw, threaded groove, cable tray cover plate, limit block, side block, bottom block and clamping connector, the extension cable tray that is retracted on the surface of the main cable tray can be pulled out according to the usage scenario and usage requirements, so as to adjust the length of the cable bridging to meet the cable laying requirements in different scenarios, thereby improving the efficiency and convenience of cable laying work;

[0014] By utilizing the interplay between threaded pipes, dustproof brushes, screws, threaded grooves, cable tray covers, limit blocks, side blocks, bottom blocks, and clamping connectors, the connection position between the main cable tray and the extension cable tray is fixed after adjusting their lengths, thereby ensuring the stability of the laid cables. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a side view of the structure of this utility model;

[0018] Figure 3 This is a bottom view of the cable tray cover plate of this utility model;

[0019] Figure 4 This is an exploded enlarged structural diagram of the main cable tray and the extension cable tray of this utility model;

[0020] Figure 5 This is an enlarged structural diagram of the main cable tray and the extension cable tray of this utility model.

[0021] In the diagram: 1. Main cable tray; 2. T-block; 3. Extension cable tray; 4. Extension groove; 5. Threaded pipe; 6. Dustproof brush; 7. Screw; 8. Threaded groove; 9. Cable tray cover plate; 10. Limiting block; 11. Side block; 12. Bottom block; 13. Clip connector. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see Figures 1-5 This utility model provides the following technical solution: a retractable cable tray, including a main cable tray 1, a T-shaped block 2 fixedly connected to the bottom surface of the main cable tray 1, the bottom of the T-shaped block 2 slidably connected to the top groove of the extension cable tray 3, extension grooves 4 transversely opened on both sides of the longitudinal end of the extension cable tray 3, threaded tubes 5 provided at the intersection of the extension grooves 4 and the extension cable tray 3 on both sides, dustproof brushes 6 are glued to the surface of the extension cable tray 3 on both sides of the extension grooves 4, the threads on the surface of the threaded tubes 5 are threadedly connected to the threaded grooves 8 by screws 7, the threaded grooves 8 are opened on the longitudinal end surface of the main cable tray 1, and the top of the main cable tray 1 abuts against the cable tray cover plate 9. The bottom surface of the transverse end of the cable tray cover plate 9 is connected to the limiting block 10, and the surface of the limiting block 10 is sleeved on the top surface of the main cable tray 1. The longitudinal end surface of the inner wall of the cable tray cover plate 9 is connected to the side block 11, and the surface of the side block 11 is fitted and connected to the upper section of the longitudinal end of the extension cable tray 3. The bottom of the cable tray cover plate 9 is fixedly connected to the bottom block 12, and a snap connector 13 is provided on one side of the bottom block 12. In this design scheme, the main cable tray 1 and the cable tray cover plate 9 form the main body of the tray-type cable tray. The main body of the tray-type cable tray is existing technology, and the core content of this technical solution is irrelevant to it. Therefore, it will not be described in detail in this technical solution.

[0024] Preferably, the extension cable tray 3 is a U-shaped integrated structure.

[0025] In practical use, the extension cable tray 3 is sleeved on the surface of the main cable tray 1, and the rubber distance between the two can be adjusted.

[0026] Preferably, two sets of threaded grooves 8 are opened on both sides of the longitudinal end of the main cable tray 1, and the threaded grooves 8 are opened at the intersection of the extension groove 4 and the main cable tray 1.

[0027] In practical use, the screw 7 is threaded through the threaded tube 5 and fixed to the corresponding threaded groove 8 on the surface of the main cable tray 1, thereby fixing the position of the main cable tray 1 and the extension cable tray 3, which have adjusted the rubber length.

[0028] Preferably, two sets of "T"-shaped grooves are provided on the transverse end surface of the extended cable tray 3, and the shape and size of the grooves are adapted to the T-shaped block 2.

[0029] In practical use, the sliding groove opened at the top of the extended cable tray 3 can be used to limit the movement range of the main cable tray 1 on its inner wall, while making the connection between the two tighter.

[0030] Preferably, the two sets of dustproof brushes 6 are located on both sides of the surface of the extension cable tray 3, and the dustproof brushes 6 are located outside the extension groove 4.

[0031] In practical use, after the extension cable tray 3 is stretched outward from the surface of the intersecting main cable tray 1 to expose the extension groove 4, the dustproof brushes 6 on both sides of the extension groove 4 are attached to the surface of the extension cable tray 3 to cover the exposed opening of the extension groove 4, so as to prevent external dust from entering the main cable tray 1 and the extension cable tray 3 from here and accumulating on the surface of the cable.

[0032] Preferably, an "L"-shaped cavity is formed between the cable tray cover plate 9 and the limiting block 10, and the shape and size of the "L"-shaped cavity are adapted to the opening end at the intersection of the main cable tray 1 and the extension cable tray 3.

[0033] In practical use, the cooperation between the cable tray cover plate 9 and the limiting block 10 makes the connection between the cable tray cover plate 9 and the opening end of the main cable tray 1 and the extension cable tray 3 more tight and stable, preventing the cable tray cover plate 9 from falling off.

[0034] Preferably, a snap-fit ​​connector 13 is provided on one side of the base block 12, and a row of semi-circular rubber strips is provided at the bottom of the snap-fit ​​connector 13. A snap-fit ​​groove that matches the shape and size of the snap-fit ​​connector 13 is provided on the other side of the base block 12.

[0035] In practical use, the cable tray cover plate 9, which is sleeved on the top of the main cable tray 1 and the extension cable tray 3, uses the bottom block 12 connected to its bottom and the snap connector 13 connected to one side of the bottom block 12, as well as the snap slot opened on the other side of the bottom block 12 that matches the snap connector 13, to easily snap and fix two adjacent cable tray cover plates 9.

[0036] Working principle: During cable laying, determine the installation position and route of the cable tray according to the construction drawings. Use measuring tools to accurately measure the installation path of the cable tray, mark the installation positions of the supports and hangers, and install the supports and hangers according to the marked positions. Then, use the T-blocks 2 at the bottom of the main cable tray 1 to slide and fit the extension cable tray 3. Then fix the main cable tray 1 to the supports and hangers, which can be fixed with bolts or clamps. The fixing points should be evenly distributed to ensure that the cable tray will not shift during operation. After fixing the position of the main cable tray 1, the extension cable tray 3 that slides and fits on the main cable tray 1 can be pulled to both sides to extend its length outward for cable laying. At the same time, pay attention to leaving stretching margin when stretching to allow for future upgrades and modifications to extend the main cable tray 1 and the extension cable tray 3 again. At the intersection of the brackets 3, the length of the cable that can be laid can be adjusted. When the extension cable tray 3 moves on both sides of the surface of the main cable tray 1, the screw 7 fixed between the main cable tray 1 and the threaded tube 5 can be unscrewed to facilitate the sliding of the extension cable tray 3 on the surface of the main cable tray 1. In addition, after moving to the corresponding position, the screw 7 can be threaded through the threaded tube 5 again and fixed to the threaded groove 8 at the corresponding position on the surface of the main cable tray 1, thereby fixing the position of the main cable tray 1 and the extension cable tray 3 with the rubber length adjusted. At the same time, after the extension cable tray 3 is stretched outward from the surface of the intersecting main cable tray 1 to expose the extension groove 4, the dustproof brushes 6 on both sides of the extension groove 4 are attached to the surface of the extension cable tray 3 to cover the exposed opening of the extension groove 4, so as to prevent external dust from entering the main cable tray 1 and the extension cable tray 3 from here and accumulating on the cable surface, thereby affecting its heat dissipation.

[0037] After installing the main cable tray 1 and extension cable tray 3 according to requirements, the cables can be laid and fixed within them. During cable laying, the cables should be fixed at regular intervals to prevent them from swaying within the main cable tray 1 and extension cable tray 3. The spacing between fixing points is generally 1- For vertically laid cables, the spacing between fixing points should be appropriately reduced. Cables can be fixed using nylon cable ties, cable clips, etc. After cable laying is completed, the cables should be labeled. Cable identification tags should be hung at both ends, bends, and branches of the cables, indicating the cable specifications, model, route, and purpose, to facilitate later maintenance and management. After cable laying is completed, the cable tray cover plate 9, along with its limiting blocks 10 and side blocks 11, should be fitted and fixed at the intersection of the top openings of the main cable tray 1 and the extension cable tray 3. This covers and protects the cables laid in the main cable tray 1 and the extension cable tray 3, preventing dust and debris from entering. Simultaneously, the main cable tray 1, the extension cable tray 3, and the cable tray cover plate 9 are fitted together. The limiting block 10 and the side block 11 ensure a firm connection between the main cable tray 1, the extension cable tray 3, and the cable tray cover plate 9, preventing them from falling off during operation. At the same time, multiple cable tray cover plates 9 can be fitted onto the top of the intersection of the main cable tray 1 and the extension cable tray 3 according to the length of the connected main cable tray 1 and the extension cable tray 3. The cable tray cover plate 9 fitted onto the top of the main cable tray 1 and the extension cable tray 3 utilizes the bottom block 12 connected to its bottom and the snap connector 13 connected to one side of the bottom block 12, as well as the snap slot opened on the other side of the bottom block 12 that matches the snap connector 13, to easily snap and fix two adjacent cable tray cover plates 9. Thus, the connection of the cable tray cover plate 9 at the top of the main cable tray 1 and the extension cable tray 3 can also support and fix the connection between the two, making the connection between the two more stable and avoiding unstable connection from affecting the stability and safety of cable laying.

[0038] Therefore, when the cable laying equipment is upgraded, the screw 7 fixed between the main cable tray 1 and the extension cable tray 3 can be unscrewed again according to the stretching allowance reserved between the main cable tray 1 and the threaded pipe 5 during the above operation. This allows the length of the main cable tray 1 and the extension cable tray 3 to be extended or retracted according to the cable laying requirements, thereby improving the efficiency of cable laying.

[0039] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are 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 retractable cable tray, comprising a main cable tray (1), characterized in that: The bottom surface of the main cable tray (1) is fixedly connected to a T-shaped block (2). The bottom of the T-shaped block (2) is slidably connected to the top groove of the extension cable tray (3). Extension grooves (4) are opened laterally on both sides of the longitudinal end of the extension cable tray (3). Threaded tubes (5) are provided at the intersection of the extension grooves (4) and the extension cable tray (3). Dustproof brushes (6) are bonded to the surface of the extension cable tray (3) on both sides of the extension grooves (4). The threads on the surface of the threaded tubes (5) are connected to the threaded grooves (8) by screws (7). The threaded grooves (8) are opened at... The main cable tray (1) has a longitudinal end surface, the top of the main cable tray (1) abuts against the cable tray cover plate (9), the bottom surface of the transverse end of the cable tray cover plate (9) is connected to a limiting block (10), the surface of the limiting block (10) is sleeved on the top surface of the main cable tray (1), the longitudinal end surface of the inner wall of the cable tray cover plate (9) is connected to a side block (11), the surface of the side block (11) is fitted and connected to the upper section of the longitudinal end of the extension cable tray (3), the bottom of the cable tray cover plate (9) is fixedly connected to a bottom block (12), and a snap connector (13) is provided on one side of the bottom block (12).

2. The retractable cable tray according to claim 1, characterized in that: The extended cable tray (3) is a U-shaped integrated structure.

3. The retractable cable tray according to claim 1, characterized in that: Two sets of threaded grooves (8) are respectively opened on both sides of the longitudinal end of the main cable tray (1), and the threaded grooves (8) are opened at the intersection of the extension groove (4) and the main cable tray (1).

4. A retractable cable tray according to claim 2, characterized in that: The extended cable tray (3) has two sets of "T"-shaped grooves on its transverse end surface, and the shape and size of the grooves are adapted to the T-shaped block (2).

5. A retractable cable tray according to claim 1, characterized in that: The two sets of dustproof brushes (6) are located on both sides of the surface of the extension cable tray (3), and the dustproof brushes (6) are located outside the extension groove (4).

6. A retractable and expandable cable tray according to claim 1, characterized in that: An "L"-shaped cavity is formed between the cable tray cover plate (9) and the limiting block (10), and the shape and size of the "L"-shaped cavity are adapted to the opening end at the intersection of the main cable tray (1) and the extension cable tray (3).

7. A retractable and expandable cable tray according to claim 1, characterized in that: The bottom block (12) has a snap connector (13) on one side, and a row of semi-circular rubber strips on the bottom of the snap connector (13). The bottom block (12) has a slot on the other side that matches the shape and size of the snap connector (13).

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