Fireproof bridge cover plate

Abstract

The utility model belongs to the technical field of cover plates, and particularly relates to a fireproof bridge cover plate, which comprises an outer layer and an inner layer, the inner layer is arranged on the inner side of the outer layer, a heat insulation layer is fixedly connected between the outer layer and the inner layer, the outer layer comprises a U-shaped cover, two ends of the U-shaped cover are respectively provided with an inner buckle structure which extrudes a bridge inwards, the inner layer comprises a transverse plate, and the transverse plate is fixedly connected with the U-shaped cover. The two ends of the transverse plate are each provided with an outer supporting structure which expands and supports the bridge outwards, and each inner buckling structure comprises a U-shaped groove which is fixedly connected to the end of the corresponding U-shaped cover. According to the utility model, the inner buckling structures at the two ends of the U-shaped cover extrude the bridge frame inwards, so that the cover plate is clamped on the bridge frame, in the buckling process, the outer supporting structures at the two ends of the transverse plate expand outwards to support the bridge frame, so that the inner buckling structures are supported, and the inner buckling structures and the outer supporting structures extrude the bridge frame inwards and outwards respectively; the side wall of the bridge is uniformly stressed, so that the bridge is prevented from being deformed due to extrusion, and heat can be prevented from being transferred to the inside of the bridge through the heat-insulating layer.

Description

Technical Field

[0001] This utility model belongs to the field of cover plate technology, specifically relating to a fireproof cable tray cover plate. Background Technology

[0002] Cable trays are widely used in industries such as petroleum, chemical, power, and telecommunications. They are mainly used for laying overhead power cables, control cables, lighting circuits, and telecommunications cables. Existing cable trays mainly include four types: trough-type cable trays, tray-type cable trays, ladder-type cable trays, and long-span cable trays. Regardless of the type, cable trays can also be divided into straight-through cable trays, bend-through cable trays, tee-type cable trays, and four-way cable trays. Fireproof cable trays need to be used in conjunction with cover plates. The cover plates can close the top of the cable tray to prevent dust and other debris from entering the interior of the cable tray.

[0003] The cover plates are usually connected to the cable tray by bolting or snap-fitting. Bolting is less efficient than snap-fitting. However, the cover plates usually use a one-way snap-fitting structure. During installation, the snap-fitting structure squeezes the cable tray from the inside or outside. This installation method will cause uneven stress on the side wall of the cable tray, which can easily cause the cable tray to deform and thus affect the stability of the cover plate installation. Utility Model Content

[0004] The purpose of this utility model is to provide a fireproof cable tray cover plate, in which the inner buckling structure and the outer supporting structure respectively squeeze the cable tray inward and outward, so that the side wall of the cable tray is evenly stressed and the cable tray is prevented from deforming due to compression, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fireproof cable tray cover, comprising an outer layer and an inner layer, wherein the inner layer is disposed inside the outer layer, and a heat insulation layer is fixedly connected between the outer layer and the inner layer; the outer layer comprises a U-shaped cover, wherein both ends of the U-shaped cover are provided with an inwardly pressing structure for the cable tray; the inner layer comprises a horizontal plate, wherein both ends of the horizontal plate are provided with an outwardly expanding structure for the cable tray.

[0006] Furthermore, the inner buckle structure includes a U-shaped groove fixedly connected to the end of the U-shaped cover, and an extension strip is fixedly connected to one end of the U-shaped groove.

[0007] Furthermore, the U-shaped groove and the U-shaped cover are an integral structure, the extension strip and the U-shaped groove are an integral structure, and the U-shaped cover is made of stainless steel.

[0008] Furthermore, the external support structure includes a first arc-shaped strip fixedly connected to the end of the horizontal plate, a second arc-shaped strip disposed below the first arc-shaped strip, and an arc-shaped connecting strip for engaging the cable tray disposed between the first arc-shaped strip and the second arc-shaped strip.

[0009] Furthermore, the first arc-shaped strip is fixedly connected to the second arc-shaped strip via an arc-shaped connecting strip, and the horizontal plate, the first arc-shaped strip, the second arc-shaped strip, and the arc-shaped connecting strip are an integral structure.

[0010] Furthermore, the heat insulation layer is made of glass fiber, and it is fixedly bonded to the U-shaped cover and the cross plate with fire-retardant adhesive.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: the inner buckling structure at both ends of the U-shaped cover presses the cable tray inward, thereby snapping the cover plate onto the cable tray. During the fastening process, the outer support structure at both ends of the horizontal plate expands outward to support the cable tray, thereby providing support for the inner buckling structure. The inner buckling structure and the outer support structure press the cable tray inward and outward respectively, so that the side wall of the cable tray is subjected to uniform force and the cable tray is not deformed due to compression. The heat insulation layer can isolate heat and prevent heat from being transferred to the inside of the cable tray in the event of a fire, thereby preventing the internal cables from melting their outer sheaths due to high temperatures. Attached Figure Description

[0012] Figure 1 This is a front view of the present invention;

[0013] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 3 This is the left view of the present invention.

[0015] The attached diagram lists the components represented by each number as follows:

[0016] 1. Outer layer; 11. Inner buckle structure; 111. U-shaped groove; 112. Extension strip; 12. U-shaped cover; 2. Inner layer; 21. Outer support structure; 211. First arc strip; 212. Second arc strip; 213. Arc connecting strip; 22. Horizontal plate; 3. Insulation layer. Detailed Implementation

[0017] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0018] like Figure 1-3 As shown, a fireproof cable tray cover includes an outer layer 1 and an inner layer 2. The inner layer 2 is disposed inside the outer layer 1. A heat insulation layer 3 is fixedly connected between the outer layer 1 and the inner layer 2. The outer layer 1 includes a U-shaped cover 12. Both ends of the U-shaped cover 12 are provided with an inwardly pressing structure 11 that compresses the cable tray. The inner layer 2 includes a horizontal plate 22. Both ends of the horizontal plate 22 are provided with an outwardly expanding support structure 21 that supports the cable tray.

[0019] According to the above structure, during installation, the cover plate is fastened to the top of the cable tray. During fastening, the inner fastening structures 11 at both ends of the U-shaped cover 12 press the cable tray inward, thereby giving the outer layer 1 sufficient friction to snap the cover plate onto the cable tray. During the fastening process, the outer support structures 21 at both ends of the horizontal plate 22 expand the cable tray outward, thereby providing support for the inner fastening structure 11. The inner fastening structure 11 and the outer support structure 21 press the cable tray inward and outward respectively to prevent the cable tray from deforming due to compression.

[0020] like Figure 3 As shown, the inner buckle structure 11 includes a U-shaped groove 111 fixedly connected to the end of the U-shaped cover 12. One end of the U-shaped groove 111 is fixedly connected to an extension strip 112. The U-shaped groove 111 and the U-shaped cover 12 are an integral structure, and the extension strip 112 and the U-shaped groove 111 are an integral structure. The material of the U-shaped cover 12 is stainless steel.

[0021] According to the above structure, during installation, the cover plate is snapped down, the U-shaped groove 111 is squeezed open, and at the same time the U-shaped groove 111 squeezes the cable tray inward, so that the outer layer 1 is snapped onto the outside of the cable tray as a whole. The one-piece structure is not only easy to form in one piece during production, but also has higher strength.

[0022] like Figure 3 As shown, the external support structure 21 includes a first arc-shaped strip 211 fixedly connected to the end of the horizontal plate 22, a second arc-shaped strip 212 disposed below the first arc-shaped strip 211, and an arc-shaped connecting strip 213 for engaging the cable tray disposed between the first arc-shaped strip 211 and the second arc-shaped strip 212. The first arc-shaped strip 211 is fixedly connected to the second arc-shaped strip 212 through the arc-shaped connecting strip 213. The horizontal plate 22, the first arc-shaped strip 211, the second arc-shaped strip 212 and the arc-shaped connecting strip 213 are an integral structure.

[0023] According to the above structure, when the cover plate is snapped down, the second arc-shaped strip 212 is squeezed inward. When the cover plate is snapped down into place, the end of the cable tray is stuck between the two arc-shaped connecting strips 213, thereby making the inner layer 2 snap into the inside of the cable tray, and thus making the cover plate more stably snapped onto the cable tray.

[0024] like Figure 3 As shown, the heat insulation layer 3 is made of fiberglass and is fixedly bonded to the U-shaped cover 12 and the horizontal plate 22 with fireproof adhesive.

[0025] According to the above structure, the heat insulation layer 3 can isolate heat and prevent heat from being transferred to the inside of the cable tray in the event of a fire, thereby preventing the internal cables from melting their outer sheath due to high temperature.

[0026] The working principle of this utility model is as follows: During installation, the cover plate is fastened to the top of the cable tray. During fastening, the inner fastening structures 11 at both ends of the U-shaped cover 12 press inward against the cable tray, thereby providing sufficient friction to the outer layer 1, thus securing the cover plate onto the cable tray. During the fastening process, the outer support structures 21 at both ends of the horizontal plate 22 expand outward against the cable tray, thereby providing support for the inner fastening structures 11. The inner fastening structures 11 and the outer support structures 21 press inward and outward against the cable tray respectively, preventing the cable tray from deforming due to compression. During installation, the cover plate is fastened downward, and the U-shaped groove 111 is squeezed open. At the same time, the U-shaped groove 111... 11. The cable tray is squeezed inward, so that the outer layer 1 is fastened to the outside of the cable tray as a whole. The one-piece structure is not only easy to form in one piece during production, but also has higher strength. When the cover plate is fastened downward, the second arc strip 212 is squeezed inward. When the cover plate is fastened downward, the end of the cable tray is stuck between the two arc connecting strips 213, so that the inner layer 2 is stuck inside the cable tray, thereby making the cover plate more stably fastened to the cable tray. The heat insulation layer 3 can isolate heat. In the event of a fire, heat is prevented from being transferred to the inside of the cable tray, thereby preventing the internal cables from being melted by high temperature.

[0027] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A fireproof cable tray cover, comprising an outer layer (1) and an inner layer (2), characterized in that: The inner layer (2) is disposed inside the outer layer (1), and a heat insulation layer (3) is fixedly connected between the outer layer (1) and the inner layer (2). The outer layer (1) includes a U-shaped cover (12), and both ends of the U-shaped cover (12) are provided with an inwardly pressing cable tray structure (11). The inner layer (2) includes a horizontal plate (22), and both ends of the horizontal plate (22) are provided with an outwardly expanding cable tray structure (21).

2. The fireproof cable tray cover plate according to claim 1, characterized in that: The inner buckle structure (11) includes a U-shaped groove (111) fixedly connected to the end of the U-shaped cover (12), and an extension strip (112) is fixedly connected to one end of the U-shaped groove (111).

3. The fireproof cable tray cover according to claim 1, characterized in that: The U-shaped groove (111) and the U-shaped cover (12) are an integral structure, the extension strip (112) and the U-shaped groove (111) are an integral structure, and the material of the U-shaped cover (12) is stainless steel.

4. A fireproof cable tray cover according to claim 1, characterized in that: The external support structure (21) includes a first arc-shaped strip (211) fixedly connected to the end of the horizontal plate (22), a second arc-shaped strip (212) is provided below the first arc-shaped strip (211), and an arc-shaped connecting strip (213) for engaging the cable tray is provided between the first arc-shaped strip (211) and the second arc-shaped strip (212).

5. A fireproof cable tray cover according to claim 1, characterized in that: The first arc-shaped strip (211) is fixedly connected to the second arc-shaped strip (212) through the arc-shaped connecting strip (213). The horizontal plate (22), the first arc-shaped strip (211), the second arc-shaped strip (212) and the arc-shaped connecting strip (213) are an integral structure.

6. A fireproof cable tray cover according to claim 1, characterized in that: The heat insulation layer (3) is made of glass fiber and is fixedly bonded to the U-shaped cover (12) and the cross plate (22) by fireproof adhesive.

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