Double-epoxy cable bridge

By applying zinc-aluminum-magnesium coating and epoxy resin coating to the cable tray, a dense oxide film is formed, solving the problems of pickling contamination and insufficient insulation of hot-dip galvanized cable trays. This achieves corrosion resistance and insulation in coastal areas and chemical workshops, improving the safety and service life of the cable trays.

CN223942342UActive Publication Date: 2026-02-24SHANDONG LIANSHENG ENGINEERING MATERIALS CO LTD
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Patent Information

Application Number
CN202520519364.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-24
Publication Date
2026-02-24
Estimated Expiration
2035-03-24

AI Technical Summary

Technical Problem

Existing hot-dip galvanized cable trays suffer from acid pickling pollution, serious resource waste, and poor insulation performance. They are also prone to corrosion in coastal areas and chemical workshops, posing risks of leakage and short circuits.

Method used

It adopts a double-layer protective structure, including a zinc-aluminum-magnesium coating and an epoxy resin coating, which, combined with the cable tray body and cover plate, form a dense oxide film to prevent contact with corrosive media, and the rotating structure facilitates assembly and online operation.

Benefits of technology

It improves the corrosion resistance and insulation level of cable trays, reduces the risk of leakage and short circuit, and extends service life and ease of assembly.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of cable bridges, and provides a double-epoxy cable bridge which comprises a cable bridge body, a positioning hole is formed in the cable bridge body, a cover plate is installed on the outer wall of the cable bridge body, a zinc-aluminum-magnesium coating is arranged on the outer wall of the cable bridge body, and the zinc-aluminum-magnesium coating is arranged on the outer wall of the cable bridge body. And an epoxy resin coating is arranged on the outer wall of the zinc-aluminum-magnesium coating. According to the utility model, the zinc-aluminum-magnesium coatings are arranged on the outer walls of the cable bridge main body and the cover plate, and the zinc-aluminum-magnesium coatings contain various metal elements such as zinc, aluminum, magnesium and the like, and the elements can form a layer of compact oxidation film in the air, so that the corrosion resistance of the coatings is improved, the corrosion resistance of the cable bridge main body and the cover plate is further improved, and the service life of the cable bridge is prolonged. The epoxy resin coating is arranged on the outer wall of the zinc-aluminum-magnesium coating, so that the corrosion resistance of the cable bridge main body and the cover plate can be further improved, and the insulation grade of the cable bridge main body and the cover plate can be improved.
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Description

Technical Field

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

[0002] Cable trays are structural devices used to place and protect cables. They are widely used in electrical systems in buildings, workshops, and photovoltaic power generation industries. Cable trays typically consist of trays, ladders, cable troughs, and their supports, elbows, and tees. The troughs, trays, and ladders are the main load-bearing components of the cable tray. The troughs are generally flat-bottomed, suitable for laying a large number of cables; the ladders have a ladder-like structure, providing good ventilation and facilitating cable heat dissipation. The size of the troughs is generally used to lay cables of different specifications, and they have good sealing properties. Their main function is to provide a safe and reliable laying channel for cables. However, in coastal areas, chemical workshops, and heating companies with highly corrosive external environments, they are easily corroded, rusted, and rotted, causing significant safety hazards.

[0003] To address this issue, patent CN218732926U discloses a cable tray, including a support frame and a load-bearing mechanism. This utility model of a cable tray can completely solve the corrosion problem of cable tray troughs in highly corrosive coastal chemical industrial areas.

[0004] The existing technical solutions mentioned above have the following drawbacks: Although hot-dip galvanized cable trays can solve the corrosion problem, the production process of the cable trays has not been upgraded or improved. Current hot-dip galvanized cable trays require pickling, which pollutes the air, discharges sulfuric acid water, and wastes zinc seriously. Moreover, they lack insulation, and the rough surface is easy to scratch the cable protection layer, which can lead to the risk of leakage and short circuit. Ordinary cable trays do not have epoxy protection and cannot play a role in corrosion prevention. They are easy to rust and corrode, especially in coastal photovoltaic and chemical plants, where they cannot be used at all. Summary of the Invention

[0005] The purpose of this utility model is to provide a double epoxy cable tray to solve the problems of acid pickling pollution in existing hot-dip galvanized cable trays, reduce resource waste and poor insulation performance, while achieving the same anti-corrosion function. It adds double epoxy protection to the ordinary cable tray to meet the requirements for use in highly corrosive coastal chemical areas.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a double epoxy cable tray, including a cable tray body;

[0007] The cable tray body has a positioning hole inside, and a cover plate is installed on the outer wall of the cable tray body.

[0008] The outer walls of the cable tray body and the cover plate are both coated with zinc-aluminum-magnesium coating, and the outer walls of the zinc-aluminum-magnesium coating are coated with epoxy resin.

[0009] Preferably, the cable tray body is internally connected to a rotating shaft, and a conveying roller is installed on the outer wall of the rotating shaft. The cable tray body and the conveying roller form a rotating structure through the rotating shaft.

[0010] Preferably, the positioning holes are symmetrically arranged around the central axis of the cable tray body, and the positioning holes are evenly distributed on the outer wall of the cable tray body.

[0011] Preferably, the cable tray body and the cover plate are engaged and connected, and the cable tray body and the cover plate are adapted to each other.

[0012] Preferably, the cable tray body is tightly bonded to the zinc-aluminum-magnesium coating, and the zinc-aluminum-magnesium coating is tightly bonded to the epoxy resin coating.

[0013] Preferably, the cable tray body is arranged in parallel with the zinc-aluminum-magnesium coating, and the zinc-aluminum-magnesium coating is arranged in parallel with the epoxy resin coating.

[0014] The advantages of the double epoxy cable tray provided by this utility model are as follows:

[0015] The cable tray consists of a main body, a cover plate, a zinc-aluminum-magnesium coating, and an epoxy resin coating. The outer walls of both the main body and the cover plate are coated with a zinc-aluminum-magnesium coating. Because this coating contains zinc, aluminum, magnesium, and other metallic elements, it forms a dense oxide film in the air, effectively preventing oxygen, moisture, and other corrosive media from contacting the base metal, thus improving the coating's corrosion resistance and enhancing the overall corrosion resistance of the cable tray. An epoxy resin coating, with its dense structure, effectively blocks water, oxygen, acids, alkalis, salts, and other corrosive media from eroding the substrate. It exhibits good resistance to most chemicals, and the tight adhesion between the zinc-aluminum-magnesium coating and the epoxy resin coating further enhances the corrosion resistance of the cable tray and its cover plate. It also improves the insulation level of the cable tray and its cover plate, reducing the risk of leakage and short circuits, and extending the service life of the cable tray.

[0016] The cable tray body, positioning holes, cover plate, rotating shaft and conveying roller are designed. The cover plate is moved to engage with the cable tray body on the outer wall of the cable tray body, which facilitates the assembly of the cable tray body and the cover plate. Multiple positioning holes are opened inside the cable tray body, which can be used to assemble and connect two cable trays, improving the convenience of assembly and connection.

[0017] Furthermore, by dragging and pulling the cable within the cable tray body, the conveyor rollers can be driven to rotate along the cable tray body under the action of the rotating shaft, which facilitates the loading of the cable. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a bottom view of the present invention;

[0020] Figure 3 This is a structural breakdown diagram of the present invention;

[0021] Figure 4 This is a perspective view of the main body of the cable tray of this utility model;

[0022] Figure 5 This is a three-dimensional sectional view of the main body of the cable tray of this utility model.

[0023] The following are the annotations in the figure: 1. Cable tray body; 2. Positioning hole; 3. Cover plate; 4. Zinc-aluminum-magnesium coating; 5. Epoxy resin coating; 6. Rotary shaft; 7. Conveyor roller. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1-5 The present invention provides a double epoxy cable tray, including a cable tray body 1.

[0026] Reference Figure 1 , Figure 4 and Figure 5 As shown, the outer walls of the cable tray body 1 and the cover plate 3 are both provided with zinc-aluminum-magnesium coating 4, and the outer wall of the zinc-aluminum-magnesium coating 4 is provided with epoxy resin coating 5. The cable tray body 1 and the zinc-aluminum-magnesium coating 4 are tightly bonded, and the zinc-aluminum-magnesium coating 4 and the epoxy resin coating 5 are tightly bonded. The cable tray body 1 and the zinc-aluminum-magnesium coating 4 are arranged in parallel, and the zinc-aluminum-magnesium coating 4 and the epoxy resin coating 5 are arranged in parallel.

[0027] Both the cable tray body 1 and the cover plate 3 are coated with a zinc-aluminum-magnesium coating 4. Since the zinc-aluminum-magnesium coating 4 contains various metallic elements such as zinc, aluminum, and magnesium, these elements form a dense oxide film in the air, effectively preventing oxygen, moisture, and other corrosive media from contacting the base metal, thereby improving the coating's corrosion resistance and thus enhancing the corrosion resistance of the cable tray body 1 and the cover plate 3. An epoxy resin coating 5 is then applied to the outer wall of the zinc-aluminum-magnesium coating 4. The epoxy resin coating 5 has a dense structure, effectively blocking the erosion of the substrate by corrosive media such as water, oxygen, acids, alkalis, and salts. It exhibits good resistance to most chemical substances, and the zinc-aluminum-magnesium coating 4 and the epoxy resin coating 5 are tightly bonded together, further enhancing the corrosion resistance of the cable tray body 1 and the cover plate 3, and also improving the insulation level of the cable tray body 1 and the cover plate 3.

[0028] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the cable tray body 1 has a positioning hole 2 inside, and a cover plate 3 is installed on the outer wall of the cable tray body 1. The positioning holes 2 are symmetrically arranged around the central axis of the cable tray body 1 and are evenly distributed around the outer wall of the cable tray body 1. The cable tray body 1 and the cover plate 3 are engaged and connected, and the cable tray body 1 and the cover plate 3 are compatible.

[0029] By moving the cover plate 3 to engage with the outer wall of the cable tray body 1, it is easy to assemble the cable tray body 1 and the cover plate 3. Multiple positioning holes 2 are provided inside the cable tray body 1, which can be used to assemble and connect two cable trays.

[0030] Reference Figure 1 , Figure 2 and Figure 3 As shown, a rotating shaft 6 is movably connected inside the cable tray body 1, and a conveying roller 7 is installed on the outer wall of the rotating shaft 6. The cable tray body 1 forms a rotating structure with the conveying roller 7 through the rotating shaft 6.

[0031] By dragging and pulling the cable within the cable tray body 1, the conveyor roller 7 can be driven to rotate along the cable tray body 1 under the action of the rotating shaft 6, which facilitates the loading of the cable.

[0032] Although the present invention 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 the present invention should be included within the protection scope of the present invention.

Claims

1. A double epoxy cable tray, comprising a cable tray body (1). Its features are: The cable tray body (1) has a positioning hole (2) inside, and a cover plate (3) is installed on the outer wall of the cable tray body (1). The outer walls of the cable tray body (1) and the cover plate (3) are provided with zinc-aluminum-magnesium coating (4), and the outer walls of the zinc-aluminum-magnesium coating (4) are provided with epoxy resin coating (5).

2. The double epoxy cable tray according to claim 1, characterized in that: The cable tray body (1) is internally connected to a rotating shaft (6), and a conveying roller (7) is installed on the outer wall of the rotating shaft (6). The cable tray body (1) and the conveying roller (7) form a rotating structure through the rotating shaft (6).

3. The double epoxy cable tray according to claim 1, characterized in that: The positioning holes (2) are symmetrically arranged around the central axis of the cable tray body (1), and the positioning holes (2) are evenly distributed on the outer wall of the cable tray body (1).

4. The double epoxy cable tray according to claim 1, characterized in that: The cable tray body (1) is engaged with the cover plate (3), and the cable tray body (1) and the cover plate (3) are compatible.

5. A double epoxy cable tray according to claim 1, characterized in that: The cable tray body (1) is tightly bonded to the zinc-aluminum-magnesium coating (4), and the zinc-aluminum-magnesium coating (4) is tightly bonded to the epoxy resin coating (5).

6. A double epoxy cable tray according to claim 5, characterized in that: The cable tray body (1) is arranged in parallel with the zinc-aluminum-magnesium coating (4), and the zinc-aluminum-magnesium coating (4) is arranged in parallel with the epoxy resin coating (5).