Special bridge for dust area

Abstract

The utility model discloses a special bridge for a dust area, which is characterized in that two inclined plates of a bridge cover plate are inverted V-shaped, a spring is arranged in the bridge cover plate, two ends of the spring are connected with the inclined plates, L-shaped plates are arranged at the bottom ends of the inclined plates, the L-shaped plates are bent towards the inner side of the bridge cover plate to form a groove structure, an extension plate is arranged at the top of the side wall of a bridge groove box, and a hanging plate is arranged at one end of the extension plate. The included angle between the hanging plate and the extension plate is 100-140 degrees, and the hanging plate is arranged in the groove structure in a penetrating mode. The spring is arranged in each section of the bridge cover plate, the groove structure is clamped by the hanging plate, and under the tension action of the spring, the connection tightness between the bridge cover plate and the bridge groove box is enhanced, tight closing of the bridge groove box is ensured, and dust invasion is prevented; the sandwich structure can effectively protect the internal cable from being damaged by external high temperature, the flame-retardant characteristic of the sandwich structure reduces the risk of spontaneous combustion caused by dust accumulation, and the safety and stability of the bridge in a dust environment are improved.

Description

Technical Field

[0001] This utility model belongs to the field of cable tray technology, specifically relating to a cable tray for dusty areas. Background Technology

[0002] In dusty areas, traditional cable trays have insufficient sealing performance, allowing dust to enter the cable ducts through various interfaces and gaps. Over time, this dust accumulates inside, creating a flammable environment, especially under conditions of increased indoor temperature, significantly increasing the risk of spontaneous combustion. The usual approach to address this is to have maintenance personnel regularly clean the dust, which not only increases their work time and labor costs but also makes it difficult to ensure thorough removal of accumulated dust from the ducts, further increasing the risk of spontaneous combustion. Utility Model Content

[0003] The purpose of this utility model is to provide a special cable tray for dusty areas to solve the problem of dust accumulation in the tray boxes caused by inadequate sealing of the cable tray cover in dusty areas.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A cable tray for dusty areas includes a cable tray trough and a cable tray cover plate disposed on the top of the cable tray trough. The cable tray cover plate includes two symmetrically arranged inclined plates, which form an inverted "V" shape. Several springs are arranged parallel inside the cable tray cover plate, and the two ends of the springs are fixedly connected to the bottom surface of the inclined plates. An "L"-shaped plate is provided at the bottom end of the inclined plates. The "L"-shaped plate is bent towards the inside of the cable tray cover plate to cooperate with the inclined plates to form a groove structure. An extension plate is provided at the top of the side wall of the cable tray trough. A hanging plate is provided at the end of the extension plate away from the cable tray trough. The included angle between the hanging plate and the extension plate is 100°-140°. The hanging plate passes through the groove structure.

[0006] To further realize this utility model, the side walls and bottom plate of the cable tray box are both sandwich structures, and the sandwich structure includes an outer protective layer, a flame-retardant and heat-insulating layer and an inner protective layer in sequence from the outside to the inside.

[0007] To further realize this utility model, the "L"-shaped plate includes a connecting plate and a folding plate, the angle between the inclined plate and the connecting plate is an acute angle, the angle between the connecting plate and the folding plate is an acute angle, and the folding plate is bent upward.

[0008] To further realize this utility model, the spring is parallel to the bottom plate of the cable tray box.

[0009] The advantages of this utility model compared to the prior art are as follows:

[0010] The cable tray cover and cable tray trough designed in this utility model significantly reduce the workload and cost of maintenance personnel cleaning accumulated dust, ensure the cleanliness of the inside of the trough, and reduce the risk of dust spontaneous combustion.

[0011] This invention incorporates springs inside each section of the cable tray cover. The groove structure formed by the "L"-shaped plate and the inclined plate is held in place by the hanging plate. Under the tension of the springs, the connection between the cable tray cover and the cable tray box is strengthened, ensuring a tight seal on the cable tray box and effectively preventing dust intrusion. The sandwich structure of the cable tray box includes a flame-retardant and heat-insulating layer made of flame-retardant and heat-insulating material placed between the inner and outer protective layers. This not only effectively protects the internal cables from external high-temperature damage but also significantly reduces the risk of spontaneous combustion caused by dust accumulation through its flame-retardant properties, significantly improving the safety and stability of the cable tray in dusty environments.

[0012] This invention saves maintenance personnel time and labor costs in cleaning up accumulated dust, ensures that no dust accumulates inside the cable tray, reduces the probability of dust spontaneous combustion, and because it is filled with heat insulation material, it effectively insulates against abnormally high external temperatures, thereby protecting the internal cables. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] The meanings of the reference numerals in the attached drawings are as follows: 1. Cable tray box; 1-1. Extension plate; 1-2. Hanging plate; 2. Cable tray cover plate; 2-1. Inclined plate; 2-2. "L" shaped plate; 2-2-1. Connecting plate; 2-2-2. Folding plate; 3. Spring; 4. Outer protective layer; 5. Flame-retardant and heat-insulating layer; 6. Inner protective layer. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0016] like Figure 1As shown, a special cable tray for dusty areas includes a cable tray box 1 and a cable tray cover plate 2 disposed on the top of the cable tray box 1. The side walls and bottom plate of the cable tray box 1 are both sandwich structures. The sandwich structure includes, from the outside to the inside, an outer protective layer 4, a flame-retardant and heat-insulating layer 5, and an inner protective layer 6. The cable tray cover plate 2 includes two symmetrically arranged inclined plates 2-1, which form an inverted "V" shape. Several springs 3 are arranged parallel inside the cable tray cover plate 2. The springs 3 are parallel to the bottom plate of the cable tray box 1, and the two ends of the springs 3 are fixedly connected to the bottom surface of the inclined plates 2-1. An "L"-shaped plate 2-2 is provided at the bottom end of the inclined plates 2-1. The inner side of the cable tray cover plate 2 is bent to cooperate with the inclined plate 2-1 to form a groove structure. The "L"-shaped plate 2-2 includes a connecting plate 2-2-1 and a folding plate 2-2-2. The angle between the inclined plate 2-1 and the connecting plate 2-2-1 is an acute angle. The angle between the connecting plate 2-2-1 and the folding plate 2-2-2 is an acute angle. The folding plate 2-2-2 is bent upward. An extension plate 1-1 is provided at the top of the side wall of the cable tray box 1. A hanging plate 1-2 is provided at the end of the extension plate 1-1 away from the cable tray box 1. The angle between the hanging plate 1-2 and the extension plate 1-1 is 100°-140°. The hanging plate 1-2 passes through the groove structure.

Claims

1. A cable tray specifically designed for dusty areas, characterized in that: The cable tray includes a cable tray box (1) and a cable tray cover plate (2) set on the top of the cable tray box (1). The cable tray cover plate (2) includes two symmetrically arranged inclined plates (2-1) with an inverted "V" shape between them. Several springs (3) are arranged in parallel inside the cable tray cover plate (2). The two ends of the springs (3) are fixedly connected to the bottom surface of the inclined plates (2-1). An "L" shaped plate (2-2) is set at the bottom end of the inclined plates (2-1). The "L" shaped plate (2-2) is bent towards the inside of the cable tray cover plate (2) to cooperate with the inclined plates (2-1) to form a groove structure. An extension plate (1-1) is set at the top of the side wall of the cable tray box (1). A hanging plate (1-2) is set at the end of the extension plate (1-1) away from the cable tray box (1). The included angle between the hanging plate (1-2) and the extension plate (1-1) is 100°-140°. The hanging plate (1-2) passes through the groove structure.

2. The cable tray for dusty areas as described in claim 1, characterized in that: The side walls and bottom plate of the cable tray box (1) are both sandwich structures, and the sandwich structure includes an outer protective layer (4), a flame-retardant and heat-insulating layer (5) and an inner protective layer (6) from the outside to the inside.

3. The cable tray for dusty areas as described in claim 1 or 2, characterized in that: The "L"-shaped plate (2-2) includes a connecting plate (2-2-1) and a folding plate (2-2-2). The angle between the inclined plate (2-1) and the connecting plate (2-2-1) is an acute angle, and the angle between the connecting plate (2-2-1) and the folding plate (2-2-2) is an acute angle. The folding plate (2-2-2) is bent upwards.

4. The cable tray for dusty areas as described in claim 3, characterized in that: The spring (3) is parallel to the bottom plate of the cable tray box (1).

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