Lightweight cable tray

Abstract

This utility model discloses a lightweight cable tray, including a base plate, side beams on both sides of the base plate, and a top horizontal bar. The base plate and side beams are integrally formed into a three-layer composite structure. The outer and inner layers are aluminum alloy shells, and the inner core is an aluminum plate with honeycomb array holes. The side beams have dovetail grooves at the top, and the bottom of the short side of the horizontal bar has matching dovetail tenons for interlocking connection. The horizontal bar contains an I-shaped fiberglass skeleton covered with ceramicized silicone rubber. The cable tray structure is lightweight, high-strength, flame-retardant, and has good heat dissipation performance, making it suitable for cable laying in modern buildings and industries.

Description

Technical Field

[0001] This utility model relates to a lightweight cable tray. Background Technology

[0002] Cable trays, as a commonly used support structure in cable laying projects, are widely used in buildings, power, communications, and industrial control systems. Traditional cable trays are mostly made of metal as a single unit, possessing a certain load-bearing capacity and structural strength, but they also have the following shortcomings:

[0003] The structure is simple and has limited resistance to deformation, especially in light load applications where it is prone to excessive rigidity or redundant design.

[0004] Poor heat dissipation performance, especially in scenarios with high-density cable laying, can easily cause localized overheating;

[0005] It has poor fire resistance and corrosion resistance, resulting in a limited service life.

[0006] The assembly method is simple, and maintenance and replacement are inconvenient.

[0007] Therefore, there is an urgent need for a lightweight cable tray that is compact, high-strength, has good heat dissipation, and possesses excellent flame retardant and corrosion-resistant properties, in order to meet the higher requirements of modern building and industrial systems for cable management systems. Utility Model Content

[0008] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a lightweight cable tray.

[0009] A lightweight cable tray includes a base plate, parallel side beams on both sides of the base plate, and a horizontal bar at the top of the side beams. The base plate and side beams are a three-layer composite structure. The outer and inner layers of the three-layer composite structure are rolled aluminum alloy shells, and an inner core is provided between the outer and inner layers. The inner core is an aluminum plate with a regular hexagonal honeycomb array of holes. The base plate and the side beams on both sides are integrally formed by bending. The cross section after bending is an inverted trapezoid. The cross section of the horizontal bar is L-shaped. The top of the side beams is provided with a dovetail groove, and the bottom of the short side of the horizontal bar is provided with a matching dovetail tenon. The horizontal bar is connected to the side beams by the dovetail groove and the dovetail tenon. An I-shaped fiberglass skeleton is embedded inside the horizontal bar, and the outside of the horizontal bar is covered with ceramicized silicone rubber.

[0010] As a further improvement, the outer and inner layers of the three-layer composite structure have a thickness of 0.5 mm, the inner core has a thickness of 1 mm, and the outer diameter of the hexagonal honeycomb holes on the inner core is 3 mm.

[0011] As a further improvement, the inverted trapezoidal cross-section formed by bending the base plate and the side beams on both sides has a top width of 40mm, a bottom width of 30mm, and a height of 25mm.

[0012] As a further improvement, the dovetail groove at the top of the side beam has a depth of 1.25 mm and an inclination angle of 55°.

[0013] As a further improvement, the outer layer, inner layer and inner core of the three-layer composite structure are bonded together by a hot rolling composite process.

[0014] As a further improvement, the base plate and side beams are provided with an array of heat dissipation holes.

[0015] As a further improvement, the inner side of the side beam is filled with flame-retardant polyurethane foam.

[0016] Beneficial effects:

[0017] 1. Lightweight and high-strength structure: It adopts a three-layer composite structure, with the inner and outer layers being aluminum alloy shells and the middle having an aluminum plate core with a honeycomb structure, which significantly improves the overall rigidity and impact resistance of the cable tray while reducing its weight;

[0018] 2. Integrated molding: The base plate and the two side beams are integrally molded by bending, which makes the structure stable, reduces connection points, and improves installation efficiency;

[0019] 3. Excellent fire resistance: The crossbars are embedded with an I-shaped fiberglass skeleton and covered with ceramicized silicone rubber, which has excellent high temperature resistance and flame retardancy.

[0020] 4. Excellent heat dissipation performance: The base plate and side beams are equipped with an array of heat dissipation holes, which effectively improves air circulation and reduces the internal temperature of the cable tray;

[0021] 5. Reliable plug-in structure: The crossbars are connected by dovetail grooves and dovetail tenons, which makes installation simple, the connection firm, and facilitates later maintenance and replacement;

[0022] 6. Excellent insulation and flame retardant filling: The side beams are filled with flame retardant polyurethane foam, which further enhances safety and thermal insulation performance;

[0023] 7. Suitable for large-scale industrial manufacturing: The three-layer structure is prepared by hot rolling composite process, which is suitable for mass production and has high product consistency. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of a lightweight cable tray;

[0025] Figure 2 yes Figure 1 The front view;

[0026] 1. Base plate 2. Side beams 3. Horizontal strips 4. Outer layer 5. Inner layer 6. Inner core 7. Dovetail groove 8. Dovetail tenon 9. Fiberglass skeleton 10. Heat dissipation holes. Detailed Implementation

[0027] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.

[0028] like Figures 1-2 As shown, a lightweight cable tray includes a base plate 1, side beams 2, crossbars 3, outer layer 4, inner layer 5, inner core 6, dovetail groove 7, dovetail tenon 8, fiberglass skeleton 9, and heat dissipation holes 10.

[0029] This utility model discloses a lightweight cable tray, comprising a base plate 1, side beams 2 arranged parallel to both sides of the base plate 1, and a horizontal stop bar 3 disposed on the top of the side beams 2. The base plate 1 and the side beams 2 are integrally formed by bending, and the cross-section after forming is an inverted trapezoidal structure with a top width of 40mm, a bottom width of 30mm, and a height of 25mm.

[0030] Both the base plate 1 and the side beams 2 are three-layer composite structures. The outer layer 4 and the inner layer 5 are 0.5mm thick rolled aluminum alloy shells, and the middle layer is a 1mm thick aluminum plate core 6. The core 6 has regularly arranged regular hexagonal honeycomb array holes, and the outer diameter of the honeycomb holes is 3mm. The three layers are integrally formed by hot rolling composite process.

[0031] The top of the side beam 2 is provided with a dovetail groove 7 with a depth of 1.25mm and an inclination angle of 55°, and the bottom of the short side of the crossbar 3 is provided with a dovetail tenon 8 to match it, so as to realize quick plug-in connection. The crossbar 3 has an L-shaped cross section, with an I-shaped fiberglass skeleton 9 inside and a ceramicized silicone rubber layer on the outside, which further improves the flame retardancy and structural strength of the cable tray.

[0032] To improve the heat dissipation performance of the cable tray, an array of heat dissipation holes 10 are provided on the base plate 1 and the side beams 2. The inner side of the side beams 2 is filled with flame-retardant polyurethane foam to enhance insulation performance and delay heat conduction.

[0033] The cable tray structure of this utility model is lightweight, high-strength, and has excellent heat dissipation and flame retardant properties, making it suitable for various complex cable laying environments or environments with high safety requirements.

[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lightweight cable tray, characterized in that, The device includes a base plate, parallel side beams on both sides of the base plate, and a horizontal bar at the top of the side beams. The base plate and side beams are a three-layer composite structure. The outer and inner layers of the three-layer composite structure are rolled aluminum alloy shells, and an inner core is provided between the outer and inner layers. The inner core is an aluminum plate with a regular hexagonal honeycomb array of holes. The base plate and the side beams on both sides are bent and formed as one piece. The cross section after bending is an inverted trapezoid. The cross section of the horizontal bar is L-shaped. The top of the side beams is provided with a dovetail groove, and the bottom of the short side of the horizontal bar is provided with a matching dovetail tenon. The horizontal bar is connected to the side beams by the dovetail groove and the dovetail tenon. An I-shaped fiberglass skeleton is embedded inside the horizontal bar, and the outside of the horizontal bar is covered with ceramicized silicone rubber.

2. The lightweight cable tray according to claim 1, characterized in that, In the aforementioned three-layer composite structure, the outer and inner layers have a thickness of 0.5 mm, the inner core has a thickness of 1 mm, and the outer diameter of the hexagonal honeycomb holes on the inner core is 3 mm.

3. A lightweight cable tray according to claim 1, characterized in that, The inverted trapezoidal cross-section formed by bending the base plate and the side beams on both sides has a top width of 40mm, a bottom width of 30mm, and a height of 25mm.

4. A lightweight cable tray according to claim 1, characterized in that, The dovetail groove at the top of the side beam has a depth of 1.25 mm and an inclination angle of 55°.

5. A lightweight cable tray according to claim 1, characterized in that, The outer layer, inner layer and inner core of the three-layer composite structure are bonded together by a hot rolling composite process.

6. A lightweight cable tray according to claim 1, characterized in that, The base plate and side beams are provided with an array of heat dissipation holes.

7. A lightweight cable tray according to claim 1, characterized in that, The inner side of the side beam is filled with flame-retardant polyurethane foam.

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