Ground wire duct with corrosion-resistant function
By using corrosion-resistant materials and double-layer anti-corrosion coating, the corrosion problem of ground wire troughs in corrosive environments is solved, the long life of the wire trough and the stable operation of the cable are achieved, and it is suitable for harsh environments.
Patent Information
- Application Number
- CN202422520872.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-18
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2034-10-18
AI Technical Summary
The existing ground wire troughs are susceptible to acid and alkaline substances and moisture in corrosive environments, resulting in structural damage and shortened service life, poor sealing performance, affecting cable safety and system stability.
The U-shaped groove body is made of corrosion-resistant materials, the inner surface is coated with epoxy resin and polyurethane double-layer anticorrosion coating, combined with silicone or nitrile rubber waterproof sealing strips, a drainage hole and a filter mesh, a vent hole and a waterproof and breathable membrane on the cover plate, and a fastener fixes the cable.
It significantly enhances the corrosion resistance of the wire trough, extends service life, keeps the interior dry, prevents moisture and dust from entering, ensures the cable is stable, and is suitable for rainy and chemical environments.
Smart Images

Figure CN223273798U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of wire troughs, in particular to a ground wire trough with corrosion resistance. Background Art
[0002] Ground cable trunking is widely used in construction, industry, transportation, and other fields to protect and guide cables and communication lines. However, in these applications, cable trunking is often exposed to complex external conditions for long periods of time, especially harsh and corrosive environments such as coastal areas, chemical plants, and underground pipelines. In these environments, acids, bases, moisture, and other corrosive media can severely impact the materials and structure of cable trunking, easily causing corrosion and damage, and even compromising the safety of the cables within.
[0003] Traditional ground cable trunking is often made of metal or plastic. While these materials offer good strength and durability under certain conditions, they are susceptible to oxidation, rust, and aging when exposed to corrosive environments for extended periods. This weakens the trunking's structural strength and shortens its service life. Furthermore, poor sealing allows moisture and acidic and alkaline liquids to easily enter the trunking, exacerbating corrosion of the trunking and the cables within, further impacting the stable operation of power or communication systems.
[0004] In view of this, the inventor specially designed a ground cable duct with corrosion resistance, which led to the present case. Utility Model Content
[0005] The purpose of this application is to provide a ground cable trough with corrosion resistance, which at least solves the problem that the ground cable trough is easily corroded by acid and alkali substances, moisture, etc. in a corrosive environment, resulting in structural damage and shortened service life.
[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:
[0007] The present application provides a ground cable trough with corrosion resistance, comprising a U-shaped trough body made of corrosion-resistant material, wherein the trough body has a main channel for accommodating cables; the inner surface of the trough body is provided with an anti-corrosion coating, a cover plate is clamped on the top of the trough body, and a waterproof sealing strip is provided at the contact between the trough body and the cover plate; a drainage hole is provided at the bottom of the trough body, and a filter net is provided inside the drainage hole.
[0008] In a further embodiment, the anti-corrosion coating comprises an epoxy resin coating and a polyurethane coating.
[0009] In a further embodiment, the thickness of the epoxy resin coating is 0.3 mm to 1 mm, and the thickness of the polyurethane coating is 0.2 mm to 0.8 mm.
[0010] In a further embodiment, the waterproof sealing strip is a silicone strip or a nitrile rubber strip.
[0011] In a further solution, the cover plate is provided with a plurality of ventilation holes, and a waterproof breathable membrane is installed inside the ventilation holes.
[0012] In a further embodiment, the drain hole is provided with a one-way valve.
[0013] In a further solution, the trough body is tilted in a trumpet shape, and the distance at the opening of the trough body gradually decreases toward the bottom.
[0014] In a further solution, a fastener for fixing the cable is further provided at the bottom of the trough.
[0015] In a further embodiment, the buckle is shaped like an inverted "Ω". Beneficial effects
[0016] Compared with the prior art, the present invention has the following beneficial effects:
[0017] The use of corrosion-resistant materials and double-layer anti-corrosion coating significantly enhances the corrosion resistance of the cable trunking in harsh environments such as acid, alkali, and moisture, and extends the service life of the cable trunking and internal cables.
[0018] The sealing structure is sealed by silicone or nitrile rubber strips, and with the design of vent holes and waterproof breathable membrane, it ensures that the inside of the cable trunking remains dry and prevents external moisture and humidity from entering. It is especially suitable for rainy areas and chemical environments.
[0019] The combined design of the drain hole, filter screen and one-way valve not only ensures smooth drainage of the cable trough and prevents moisture accumulation, but also effectively prevents the entry of external dust and debris, reducing maintenance workload.
[0020] The inverted "Ω"-shaped clip can firmly clamp the cable to prevent it from shaking or being damaged in the slot, ensuring that the cable can maintain stable operation in complex environments.
[0021] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] in:
[0023] Figure 1 This is a schematic diagram of the overall structure of the utility model Figure 1 ;
[0024] Figure 2 This is a schematic diagram of the overall structure of the utility model Figure 2 ;
[0025] Figure 3This is a schematic diagram of the overall structure of the tank body of the utility model;
[0026] Figure 4 The overall structure of the cover plate of this utility model is shown as follows Figure 1 ;
[0027] Figure 5 The overall structure of the cover plate of this utility model is shown as follows Figure 2 .
[0028] Description of the numbers in the figure:
[0029] 1. Trough body; 2. Cover plate; 3. Waterproof sealing strip; 4. Anti-corrosion coating; 41. Epoxy resin coating; 42. Polyurethane coating; 5. Drain hole; 6. Filter screen; 7. Vent hole; 8. Waterproof breathable membrane; 9. One-way valve; 10. Fastener. DETAILED DESCRIPTION
[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.
[0031] like Figure 1 As shown, the purpose of this utility model is to provide a corrosion-resistant ground cable trunking that solves the problems of existing cable trunking in corrosive environments, such as susceptibility to corrosion, poor sealing performance, and poor drainage. This ensures the long-term stable operation of cables and extends the service life of the cable trunking. The entire structure is simple, the protection performance is excellent, and it is suitable for various corrosive and high-humidity environments. The structural features of the cable trunking are as follows:
[0032] like Figure 2 As shown, the trunking body 1 is made of corrosion-resistant materials such as stainless steel, aluminum alloy, or fiberglass-reinforced plastic. The U-shaped design effectively accommodates and protects the cables, providing excellent structural stability and support. Furthermore, the trough body 1 is tilted like a trumpet, with a wide opening and a gradually narrowing bottom. This helps guide water toward the bottom drainage holes 5, enhancing drainage. This tilted design reduces moisture accumulation and effectively prevents internal moisture.
[0033] like Figure 3 As shown, the inner surface of the trunking 1 is covered with a two-layer anti-corrosion coating 4. The first layer, an epoxy resin coating 41 with a thickness of 0.3 to 1 mm, provides primary corrosion protection and excellent adhesion. The second layer, a polyurethane coating 42 with a thickness of 0.2 to 0.8 mm, enhances resistance to acid and alkali corrosion and offers excellent weather and abrasion resistance. This double-layer coating significantly extends the service life of the trunking in harsh environments, making it particularly suitable for use in highly corrosive environments such as chemical plants and coastal areas. The overall protection level can reach IP67.
[0034] like Figure 4 and Figure 5 As shown, a cover plate 2 is secured to the top of the trunk 1. A waterproof sealing strip 3 is installed at the interface between the cover plate 2 and the trunk 1. Made of silicone or nitrile rubber, the sealing strip offers excellent resistance to high temperatures, corrosion, and aging, ensuring the sealing structure maintains excellent waterproof performance even during long-term use, preventing moisture from entering the trunk 1. The cover plate 2 also features several ventilation holes 7 and a built-in waterproof, breathable membrane 8, ensuring air circulation within the trunking, preventing moisture accumulation while also preventing moisture from entering, further enhancing the sealing effect.
[0035] like Figure 2 As shown, the bottom of the trough 1 is equipped with multiple drainage holes 5, each containing a removable filter 6 to prevent the ingress of mud, sand, and debris, maintaining smooth drainage and reducing cleaning effort. The filter 6 can be removed and cleaned regularly to maintain its long-term performance. Furthermore, a one-way valve 9 is installed at the drainage hole 5. When the trough is dry, the valve automatically closes, preventing external moisture and dust from entering the trough 1 through the drainage hole 5, further enhancing the trough's protective performance.
[0036] like Figure 1 As shown, a clip 10 is also designed inside the trough 1 to secure the cables. Clip 10, shaped like an inverted "Ω," firmly holds the cables, preventing them from sliding or being damaged by stress within the trough 1. This securing structure ensures that electrical cables and communication lines remain stable even when subjected to vibration or external forces, preventing damage or short circuits.
[0037] In summary, the use of corrosion-resistant materials and a double-layer anti-corrosion coating 4 significantly enhances the corrosion resistance of the cable trough in harsh environments such as acid, alkali, and humidity, extending the service life of the cable trough and the cables inside. The sealing structure is sealed with silicone or nitrile rubber strips, and is designed with vents 7 and a waterproof breathable membrane 8 to ensure that the interior of the cable trough remains dry and prevents the entry of external moisture and humidity. It is especially suitable for rainy areas and chemical environments. The combined design of the drain hole 5, filter screen 6 and one-way valve 9 not only ensures smooth drainage of the cable trough and prevents moisture accumulation, but also effectively prevents the entry of external dust and debris, reducing maintenance workload. The inverted "Ω"-shaped snap fastener 10 can firmly clamp the cable to prevent the cable from shaking or being damaged by force in the trough body 1, ensuring that the cable can still maintain stable operation in complex environments.
[0038] The cable duct of the present application can effectively resist the invasion of corrosive environment, has good sealing and drainage properties, and at the same time maintains the stability and safety of the cable. It is particularly suitable for use in special environments such as coastal areas and chemical plants.
[0039] The above is an exemplary description of the present invention in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.
Claims
1. A ground cable trunking with corrosion resistance, characterized in that: The invention comprises a U-shaped trough body (1) made of corrosion-resistant material, wherein the trough body (1) has a main trough for accommodating cables; an anti-corrosion coating (4) is provided on the inner surface of the trough body (1); a cover plate (2) is clamped on the top of the trough body (1); a waterproof sealing strip (3) is provided at the contact point between the trough body (1) and the cover plate (2); a drainage hole (5) is provided at the bottom of the trough body (1), and a filter screen (6) is provided inside the drainage hole (5).
2. The corrosion-resistant ground cable trunking according to claim 1, characterized in that: The anti-corrosion coating (4) includes an epoxy resin coating (41) and a polyurethane coating (42).
3. The corrosion-resistant ground cable trunking according to claim 2, characterized in that: The thickness of the epoxy resin coating (41) is 0.3 mm to 1 mm, and the thickness of the polyurethane coating (42) is 0.2 mm to 0.8 mm.
4. The corrosion-resistant ground cable trunking according to claim 1, characterized in that: The waterproof sealing strip (3) is a silicone strip or a nitrile rubber strip.
5. The corrosion-resistant ground cable trunking according to claim 1, characterized in that: The cover plate (2) is provided with a plurality of vent holes (7), and a waterproof breathable membrane (8) is installed inside the vent holes (7).
6. The corrosion-resistant ground cable trunking according to claim 1, characterized in that: The drainage hole (5) is provided with a one-way valve (9).
7. The corrosion-resistant ground cable trunking according to claim 6, characterized in that: The trough body (1) is arranged in a trumpet-like manner and is tilted, and the distance at the opening of the trough body (1) gradually decreases towards the bottom.
8. The corrosion-resistant ground cable trunking according to claim 1, characterized in that: The bottom of the trough body (1) is also provided with a fastener (10) for fixing the cable.
9. The corrosion-resistant ground cable trunking according to claim 8, characterized in that: The buckle (10) is shaped like an inverted "Ω".