Combined groove type cable bridge

By using the plug-in and tie-bolt connection design of the combined trough-type cable tray, the problems of simple structure and poor heat dissipation in the existing technology are solved, realizing the flexible application and efficient heat dissipation of the cable tray.

CN224177854UActive Publication Date: 2026-04-28CHINA RAILWAY NO 3 GRP CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA RAILWAY NO 3 GRP CO LTD
Filing Date
2025-04-25
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Existing trough-type cable trays have a simple structure, are inflexible in use, are difficult to cope with temporary changes and adjustments on the construction site, and have poor heat dissipation efficiency.

Method used

It adopts a modular structure, including a cover plate, side plates, a central base plate, lateral base plates, and a base frame, which are connected by plug-in and tie bolts to form an adjustable cable support structure, increasing the heat dissipation area and air duct design to improve the heat dissipation effect.

Benefits of technology

It enables flexible application of cable trays, with cables staggered in the vertical direction, increasing heat dissipation area and air channels, improving heat dissipation efficiency, and adapting to temporary changes at the construction site.

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Abstract

The utility model belongs to the technical field of cable laying and installation, and particularly relates to a combined groove-type cable bridge, which comprises a cover plate, a groove-type cable tray and a cable tray, the number of the side plates is two, and the cover plate is inversely buckled at the top ends of the two side plates; the central bottom plate and the lateral bottom plates are used for supporting cables in a one-to-one manner, and the central bottom plate is located in the middle position between the two side plates; the plurality of lateral bottom plates are arranged between the side plates and the central bottom plate, and the two adjacent lateral bottom plates, the side plates and the lateral bottom plates, and the lateral bottom plates and the central bottom plate are in an inserted connection state in the height direction; the supporting plates are arranged at the bottoms of the lateral bottom plates and the central bottom plate; the two sides of the top end of the bottom frame are fixedly connected with the bottom ends of the two side plates respectively, and the bottom end of the supporting plate is connected to the bottom frame in an inserted mode. The utility model has the advantages that adaptive combination can be carried out according to cable placement, and the heat dissipation effect is improved.
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Description

Technical Field

[0001] This utility model relates to the field of cable laying and installation technology; specifically, this utility model relates to a combined trough-type cable tray. Background Technology

[0002] In the construction of multi-family residential buildings, the electrical wiring is numerous and complex. Errors can occur in cable laying and installation, as well as in the placement of distribution boxes. To avoid such problems, research on information-based integrated layout technology for multi-family residential building installation projects has become a key issue in construction engineering. Cable trays, as core engineering equipment for implementing information-based integrated layout technology in multi-family residential building installation projects, are mainly used for cable laying and protection, improving electrical safety.

[0003] Currently, conventional trough-type cable trays generally require factory prefabrication according to the requirements of the construction site, resulting in inflexibility and difficulty in effectively coping with temporary changes and adjustments on the construction site. Furthermore, the simple structure of trough-type cable trays means that heat dissipation efficiency relies primarily on heat exchange between the main body of the cable tray and the external environment, especially for cables located in the middle, where heat tends to accumulate, leading to poor heat dissipation. Therefore, this application provides a combined trough-type cable tray. Utility Model Content

[0004] In view of this, the present invention provides a combined trough-type cable tray, thereby solving or at least alleviating the problems of the existing cable trays being pre-shaped structures, resulting in inflexible use, difficulty in coping with temporary changes and adjustments during engineering construction, and poor heat dissipation efficiency.

[0005] To achieve the aforementioned objectives, this utility model provides a combined trough-type cable tray, comprising:

[0006] The cover plate is designed as a single, integrated structure.

[0007] There are two side panels, and the cover plate is overturned onto the top of the two side panels;

[0008] A central base plate and side base plates are used to support cables one-to-one, with the central base plate located in the middle between the two side plates;

[0009] Multiple lateral base plates are provided between the side plate and the central base plate, and adjacent two lateral base plates, side plates and lateral base plates, and lateral base plates and the central base plate are in an interlocking state in the height direction.

[0010] A support plate is disposed at the bottom of the lateral base plate and the central base plate;

[0011] The bottom frame, the two sides of the top end of the bottom frame are fixedly connected to the bottom ends of the two side plates respectively, and the bottom end of the support plate is inserted into the bottom frame;

[0012] The bottom frame is provided with tension bolts corresponding to the lateral bottom plate and the central bottom plate one by one. In the length direction, the support plates on the central bottom plate and the lateral bottom plate are penetrated by the same tension bolt, and both ends of the tension bolt penetrate the bottom frame and are connected with fastening nuts.

[0013] In a combined trough-type cable tray as described above, optionally, the central bottom plate has a "C" - shaped structure with an upward opening, the lateral bottom plate has a "Z" - shaped structure with the middle part perpendicular to the two end parts, and the heights of the two sides of the central bottom plate are the same as the heights of the two end parts of the lateral bottom plate.

[0014] In a combined trough-type cable tray as described above, optionally, on the inner side, the two side surfaces of the lateral bottom plate and the two side surfaces of the central bottom plate, first inserting parts protruding outward and second inserting parts recessed are alternately arranged in the length direction, and the first inserting parts and the second inserting parts are adapted to each other.

[0015] In a combined trough-type cable tray as described above, optionally, diagonal braces are arranged at the internal angles of the central bottom plate and the lateral bottom plate.

[0016] In a combined trough-type cable tray as described above, optionally, all the support plates on the same side of the central bottom plate form an "S" - shaped long air duct in the length direction of the bottom frame, and the side surface and the bottom surface of the bottom frame are both set to be hollowed out.

[0017] In a combined trough-type cable tray as described above, optionally, round holes for the penetration of the tension bolt are arranged on the support plate, and arc-shaped holes for sleeving the support bolt from top to bottom are arranged at the bottom of the support plate, and the distance between the centers of the round hole and the arc-shaped hole is less than the height value of the side surface of the lateral bottom plate.

[0018] In a combined trough-type cable tray as described above, optionally, in the direction from the central bottom plate outwards, the central bottom plate, the lateral bottom plate and the side plates are distributed in a stepped manner, so as to form a height difference for the cables in the height direction.

[0019] The combined trough-type cable tray of the present utility model adopts a combined structure, which can realize selecting the corresponding number of lateral bottom plates to cooperate with the central bottom plate according to the number of cables to be placed, making the application of the cable tray more flexible. And the cables are staggered in the height direction in the cable tray, which can stagger the cables and increase the heat dissipation area, improving the heat dissipation effect. Especially, the bottom of the cable tray has a stepped structure, enabling the lateral wind to effectively flow horizontally, further improving the heat dissipation effect. Description of the Drawings

[0020] The disclosure of this utility model will become more apparent with reference to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings:

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This utility model Figure 1 Enlarged view of point A in the middle;

[0023] Figure 3 This utility model Figure 1 Enlarged view at point B in the middle;

[0024] Figure 4 For the present utility model Figure 1 Another perspective view;

[0025] Figure 5 For the purpose of this invention Figure 1 The front view;

[0026] Figure 6 This is a schematic diagram of the structure of the base frame of this utility model;

[0027] Figure 7 This is a schematic diagram of the side plate of this utility model;

[0028] Figure 8 This is a schematic diagram of the structure of the side base plate of this utility model;

[0029] Figure 9 This is a schematic diagram of the structure of the central base plate of this utility model;

[0030] Figure 10 For the present utility model Figure 9 Enlarged view of point C in the middle.

[0031] Reference numerals: 1-Cover plate; 2-Side plate; 3-Central base plate; 4-Side base plate; 5-Support plate; 6-Base frame; 7-Pulley rod; 8-Fastening nut; 9-First insertion part; 10-Second insertion part; 11-Diagonal brace block; 12-Long air duct; 13-Round hole; 14-Arc-shaped hole. Detailed Implementation

[0032] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0033] like Figures 1 to 10 As shown, a typical embodiment of this utility model provides a combined trough-type cable tray, comprising:

[0034] Cover plate 1 is designed as a single-piece structure;

[0035] There are two side plates 2, and the cover plate 1 is upside down on the top of the two side plates 2; specifically, in order to improve the stability of the connection between the cover plate 1 and the side plates 2, bolts can be installed between the cover plate 1 and the side plates 2.

[0036] The central base plate 3 and the side base plates 4 are used to support the cables one-to-one, with the central base plate 3 located in the middle between the two side plates 2;

[0037] Multiple side base plates 4 are provided between the side plate 2 and the central base plate 3; specifically, there is always one central base plate 3, and the total number of side base plates 4 and central base plates 3 can be adapted to the number of cables to be placed, so as to achieve the effect of supporting the cables one by one.

[0038] The adjacent two lateral base plates 4, the side plate 2 and the lateral base plate 4, and the lateral base plate 4 and the central base plate 3 are connected in the vertical direction by plugging in. During the assembly of this combined trough-type cable tray, the connection between the lateral base plate 4 and the side plate 2 is achieved through the plugging in method. Adjacent two lateral base plates 4 and the lateral base plate 4 and the central base plate 3 can also be quickly connected by plugging in.

[0039] Support plate 5 is set at the bottom of the side base plate 4 and the center base plate 3;

[0040] The bottom frame 6 is fixed to the bottom ends of the two side plates 2 on both sides of its top end, and the bottom end of the support plate 5 is inserted into the bottom frame 6. The bottom frame 6 is fixed to the two side plates 2, thereby achieving effective connection and fixation between the side plates 2, the lateral bottom plate 4 and the central bottom plate 3 in the width direction.

[0041] The base frame 6 is equipped with tie rods 7 that correspond one-to-one with the side base plates 4 and the center base plate 3. Along the length direction, the support plates 5 on the center base plate 3 and the side base plates 4 are connected by the same tie bolt, with both ends of the tie bolt passing through the base frame 6 and connected to fastening nuts 8. By inserting the support plates 5 into the base frame 6 and installing the tie rods 7 and fastening nuts 8, the side plates 2, side base plates 4, and center base plate 3 can be further fixed, achieving overall strength and stability of the assembled cable tray.

[0042] In this embodiment, the central bottom plate 3 has an open-upward "C" shape structure, and the lateral bottom plate 4 has a "Z" shape structure with the middle part perpendicular to the two end parts. The heights of both sides of the central bottom plate 3 are the same as the heights of the two end parts of the lateral bottom plate 4. Specifically, in this embodiment, in the direction from the central bottom plate 3 outwards, the central bottom plate 3, the lateral bottom plate 4 and the side plate 2 are arranged in a stepped manner, which is used to form a height difference for the cables in the height direction.

[0043] Through this setting method, on the one hand, the cables in the cable tray are staggered in the height direction, so that the heat after the cables heat up can better leave the area where the cables are located and effectively spread to the idle area of the tray cavity, so as to achieve a better heat dissipation effect, especially to better prevent the situation where the cables located at the center displacement are too high.

[0044] On the other hand, the bottom of the lateral bottom plate 4 and the central bottom plate 3 is in a state of being inclined upwards on the outside. The air entering from the side of the cable tray can pass through all the lateral bottom plates 4 and the central bottom plate 3 in sequence, and then achieve a better heat dissipation effect.

[0045] In addition, after the lateral bottom plate 4 and the central bottom plate 3 are arranged in a stepped manner, the contact area between their bottoms and the external environment is increased, and then the heat exchange area is increased, which can further improve the heat dissipation effect of the cables.

[0046] And the top surface of the diagonal brace block 11 is set as an arc-shaped inclined surface. The diagonal brace block 11 enables the stepped connection part at the bottom of the lateral bottom plate 4 and the central bottom plate 3 to have better air guiding performance, improves the air flow throughness, and improves the heat dissipation effect.

[0047] In this embodiment, on the inner side surface, both side surfaces of the lateral bottom plate 4 and both side surfaces of the central bottom plate 3, convex first insertion parts 9 and concave second insertion parts 10 are alternately arranged in the length direction, and the first insertion parts 9 and the second insertion parts 10 are adapted to each other.

[0048] Through the arranged first insertion parts 9 and second insertion parts 10, through the cooperation of the first insertion parts 9 and the second insertion parts 10, effective limiting in the length direction is achieved between the side plate 2 and the lateral bottom plate 4, between two adjacent lateral bottom plates 4, and between the lateral bottom plate 4 and the central bottom plate 3. At the same time, combined with the support of the bottom frame 6 for the support plate 5, the side plate 2, the lateral bottom plate 4 and the central bottom plate 3 can be supported to a suitable height.

[0049] Among them, diagonal brace blocks 11 are arranged at the inner corners of the central bottom plate 3 and the lateral bottom plate 4. The diagonal brace blocks 11 can increase the strength and stability of the lateral bottom plate 4 and the central bottom plate 3, and improve the strength and stability of the overall cable tray formed by combination.

[0050] All support plates 5 located on the same side as the central base plate 3 form an "S"-shaped longitudinal air duct 12 along the length of the base frame 6, and the sides and bottom of the base frame 6 are designed to be hollow. By setting the longitudinal air duct 12, when the airflow flowing along the length of the cable tray enters the base frame 6, it can flow along the longitudinal channel. At the same time, combined with the hollow design of the base frame 6, not only is better heat dissipation achieved, but the overall weight of the cable tray is also reduced.

[0051] Furthermore, the support plate 5 is provided with a circular hole 13 for the tie bolt to pass through, and the bottom of the support plate 5 is provided with an arc-shaped hole 14 for the support bolt to be fitted from top to bottom. The distance between the center of the circular hole 13 and the center of the arc-shaped hole 14 is less than the side height of the side base plate 4. The circular hole is used for the tie bolt to pass through, thereby positioning the support plate 5, and thus positioning and fixing the side base plate 4 and the center base plate 3.

[0052] During the maintenance and testing of a cable, the tie bolts on the side base plate 4 or center base plate 3 corresponding to the cable are pulled out of the round hole 13 and then reinserted into the base frame 6. Then, the tie bolts are fitted into the arc-shaped hole 14 on the side base plate 4 or center base plate 3 from top to bottom. The tie bolts are used to support the side base plate 4 or center base plate 3, so that the cable to be maintained and tested is better exposed between the two adjacent cables, thereby facilitating the cable maintenance and testing.

[0053] The technical scope of this utility model is not limited to the contents of the above description. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the scope of this utility model.

Claims

1. A combined trough-type cable tray, characterized in that, Comprising: A cover plate (1), which is set as an integral structure; Two side plates (2), with the cover plate (1) buckled on the tops of the two side plates (2); A central bottom plate (3) and a lateral bottom plate (4), for supporting cables one by one, and the central bottom plate (3) is located at the middle position between the two side plates (2); A plurality of the lateral bottom plates (4) are arranged between the side plates (2) and the central bottom plate (3), and the adjacent two lateral bottom plates (4), between the side plates (2) and the lateral bottom plates (4), and between the lateral bottom plates (4) and the central bottom plate (3) are in an inserted state in the height direction; Support plates (5), arranged at the bottoms of the lateral bottom plates (4) and the central bottom plate (3); A bottom frame (6), with the two sides of the top end of the bottom frame (6) fixedly connected to the bottom ends of the two side plates (2) respectively, and the bottom ends of the support plates (5) are inserted into the bottom frame (6); The bottom frame (6) is provided with tension bolts (7) corresponding one by one to the lateral bottom plates (4) and the central bottom plate (3), and in the length direction, the support plates (5) on the central bottom plate (3) and the lateral bottom plates (4) are penetrated by the same tension bolt, and the two ends of the tension bolt penetrate through the bottom frame (6) and are connected with fastening nuts (8).

2. The combined trough-type cable tray according to claim 1, characterized in that, The central bottom plate (3) has an open-upward "C" - shaped structure, the lateral bottom plate (4) has a "Z" - shaped structure with the middle part perpendicular to the two end parts, and the heights of the two sides of the central bottom plate (3) are the same as the heights of the two end parts of the lateral bottom plate (4).

3. A combined trough-type cable tray according to claim 2, characterized in that, On the inner side, the two side surfaces of the lateral bottom plate (4) and the two side surfaces of the central bottom plate (3), first inserted parts (9) protruding outward and second inserted parts (10) recessed are alternately arranged in the length direction, and the first inserted parts (9) and the second inserted parts (10) are adapted to each other.

4. A combined trough-type cable tray according to claim 2, characterized in that, Diagonal braces (11) are arranged at the inner corners of the central bottom plate (3) and the lateral bottom plate (4).

5. A combined trough-type cable tray according to claim 1, characterized in that, All the support plates (5) on the same side of the central bottom plate (3) form an "S" - shaped long - side air duct (12) in the length direction of the bottom frame (6), and the side surface and the bottom of the bottom frame (6) are both set as hollowed - out shapes.

6. A combined trough-type cable tray according to claim 2, characterized in that, The support plates (5) are provided with round holes (13) for the tension bolts to penetrate through, and the bottom of the support plates (5) is provided with arc - shaped holes (14) for the support bolts to be sleeved from top to bottom, and the distance between the centers of the round holes (13) and the arc - shaped holes (14) is less than the side height value of the lateral bottom plate (4).

7. A combined trough-type cable tray according to claim 1, characterized in that, In the direction from the central bottom plate (3) outward, the central bottom plate (3), the lateral bottom plate (4) and the side plates (2) are distributed in a stepped manner, for forming a height difference of the cables in the height direction.