Groove type cable fireproof bridge

Abstract

The utility model provides a groove type cable fireproof bridge, and belongs to the technical field of cable bridges. The groove type cable fireproof bridge comprises a lower channel steel, ventilation channels are installed on the side walls of the two ends of the lower channel steel, and the top of the lower channel steel is connected with an upper channel steel. The lower channel steel and the upper channel steel are arranged, the upper channel steel is connected with the lower channel steel to form the cable channel, and the ventilation channels are installed on the side walls of the two ends of the lower channel steel so that the interior of the cable channel can be communicated with the external environment to achieve the ventilation purpose. Therefore, two adjacent cables can be separated, mutual contact and short circuit of the cables can be avoided, an isolation belt penetrates through the plurality of sliding blocks, the isolation belt is located between the two adjacent cables, the flame-retardant purpose is achieved, sealing plates are installed at the two ends of the cable channel, and the purpose that the two ends are closed can be achieved.

Description

Technical Field

[0001] The present application relates to the field of cable trays, and in particular to a trough-type fireproof cable tray. Background Art

[0002] Cable trays are divided into trough type, tray type, ladder type, grid type and other structures. They are composed of brackets, supports and installation accessories. The cable trays can be erected independently in buildings or attached to various buildings and pipe gallery brackets.

[0003] The trough-type cable tray is a system in which cables are passed through channel steels, and there needs to be gaps between the cables inside the channel steels to prevent the cables from contacting each other and causing short circuits. The existing trough-type cable trays have poor fire protection. When a fire source appears in the external environment, the trough-type cable tray can block the fire source. However, when the cables inside the trough-type cable tray spontaneously combust, the burning cables can easily lead the fire source to adjacent cables, thereby causing damage to multiple cables inside the trough-type cable tray. For this reason, we have proposed a trough-type cable fire-proof tray. Utility Model Content

[0004] In order to make up for the above shortcomings, the present application provides a trough-type cable fire-proof bridge, which aims to improve the problem of poor internal fire protection function of the trough-type cable bridge.

[0005] An embodiment of the present application provides a trough-type fireproof cable bridge, including a lower channel steel, wherein ventilation ducts are installed on the side walls at both ends of the lower channel steel, and the top of the lower channel steel is connected to an upper channel steel, and a plurality of sliders for separating cables are slidably connected between the two ventilation ducts, and an isolation belt is slidably passed through the plurality of sliders, and the isolation belt is located between two adjacent cables.

[0006] In a specific embodiment, the ventilation duct is U-shaped and has a plurality of ventilation holes thereon, and a plurality of through holes are opened on the side wall of the lower channel steel, and the plurality of through holes are all located in the ventilation duct.

[0007] In a specific embodiment, guide rails are fixedly mounted on the side walls of the two ventilation ducts, guide blocks are fixedly mounted on the side walls at both ends of the slider, and the two guide blocks are respectively slidably arranged in the two guide rails.

[0008] In a specific embodiment, the slider is provided with a plurality of mounting holes, and the cables are passed through the mounting holes.

[0009] In a specific embodiment, a plurality of isolation zones are provided.

[0010] In a specific embodiment, a mounting plate is fixedly installed on the top of the ventilation duct, and the same first screw rod passes through the mounting plate, the side wall of the lower channel steel and the side wall of the upper channel steel, and the first screw rod is connected to a first nut.

[0011] In a specific embodiment, a cable channel is formed between the lower channel steel and the upper channel steel, and both ends of the cable channel are open.

[0012] In a specific embodiment, sealing plates are inserted into the openings at both ends of the cable channel, a connecting plate is fixedly installed on the side wall of one end of the sealing plate, the same second screw passes through the connecting plate and the bottom of the lower channel steel, and a second nut is connected to the second screw.

[0013] The beneficial effects of the present application are as follows: by setting a lower channel steel and an upper channel steel, the upper channel steel is connected to the lower channel steel, and a cable channel is formed at the same time. Ventilation ducts are installed on the side walls at both ends of the lower channel steel to enable the interior of the cable channel to be connected to the external environment to achieve ventilation purposes. Several sliders are connected between the ventilation ducts on both sides, so that the cables pass through the several sliders, thereby separating two adjacent cables, avoiding contact between the cables and short circuits. At the same time, isolation belts are passed through the several sliders, and the isolation belts are located between the two adjacent cables to achieve flame retardancy. In addition, sealing plates are installed at both ends of the cable channel to achieve the purpose of sealing both ends. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the implementation methods of the present application, the following is a brief introduction to the drawings required for use in the implementation methods. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 This is a schematic diagram of the main structure of the trough-type cable fire-proof bridge provided in the embodiment of the present application;

[0016] Figure 2 A schematic diagram of a top view of the structure of a trough-type fire-resistant cable tray provided in an embodiment of the present application;

[0017] Figure 3 A schematic diagram of the side partial structure of the trough-type cable fire-proof bridge provided in an embodiment of the present application;

[0018] Figure 4 A schematic diagram of the disassembled structure of the trough-type cable fire-proof bridge provided in an embodiment of the present application;

[0019] Figure 5A schematic side view of the structure of a trough-type fire-resistant cable tray provided in an embodiment of the present application;

[0020] Figure 6 for Figure 1 A partial enlarged view of point A in the middle.

[0021] In the figure: 10-lower channel steel; 110-through hole; 20-ventilation duct; 210-ventilation hole; 220-guide rail; 230-mounting plate; 30-upper channel steel; 40-slider; 410-guide block; 420-mounting hole; 50-isolation belt; 60-first screw; 610-first nut; 70-cable channel; 80-sealing plate; 810-connecting plate; 820-second screw; 830-second nut. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0023] See also Figure 1-6 The present application provides a trough-type cable fireproof bridge, including a lower channel steel 10, with ventilation ducts 20 installed on the side walls at both ends of the lower channel steel 10, and an upper channel steel 30 connected to the top thereof, and a plurality of sliders 40 for separating the cables are slidably connected between the two ventilation ducts 20, and an isolation belt 50 is slidably passed through the plurality of sliders 40, and the isolation belt 50 is located between two adjacent cables. Specifically, ventilation ducts 20 are installed on the side walls at both ends of the lower channel steel 10, so that the interior of the lower channel steel 10 is connected to the external environment to achieve the purpose of ventilation inside the lower channel steel 10, and a slider 40 is set between the two ventilation ducts 20, and the cable passes through the plurality of sliders 40, so that there is space between the two cables of the cable, and the position of the slider 40 in the lower channel steel 10 can be adjusted for easy use. Furthermore, a through hole compatible with the isolation belt 50 is opened on the slider 40, so that the isolation belt 50 is set through the through hole. It should be noted that the isolation belt 50 is made of flame retardant material.

[0024] See Figure 4 The ventilation duct 20 is U-shaped and has several ventilation holes 210 on it. Several through holes 110 are provided on the side wall of the lower channel steel 10. The several through holes 110 are all located in the ventilation duct 20. When set, the ventilation duct 20 can play a blocking role, so that when a fire source occurs outside, the fire source will not enter the cable channel 70 through the through holes 110, but will be blocked by the ventilation duct 20. It should be noted that the through holes 110 are located below the ventilation duct 20, and the ventilation holes 210 are located above the ventilation duct 20. At the same time, the through holes 110 and the ventilation holes 210 are staggered.

[0025] See Figure 5Guide rails 220 are fixedly installed on the side walls of the two ventilation ducts 20, and guide blocks 410 are fixedly installed on the side walls at both ends of the slider 40. The two guide blocks 410 are respectively slidably arranged in the two guide rails 220. Specifically, the guide rail 220 is composed of two limit bars. At the same time, the two ends of the guide rail 220 are open, so that the guide blocks 410 can be inserted into the guide rail 220 to realize the movement of the slider 40 in the cable channel 70, so as to facilitate the adjustment of the position of the slider 40.

[0026] See Figure 5 A plurality of mounting holes 420 are provided on the slider 40, and the cables are arranged through the mounting holes 420. A plurality of isolation strips 50 are provided. In the specific setting, the cables pass through the mounting holes 420 on the plurality of sliders 40 in sequence. There is space between adjacent mounting holes 420 on the same slider 40, thereby avoiding contact between the cables and thus avoiding short circuits. A corresponding number of isolation strips 50 are provided to achieve isolation of two adjacent cables.

[0027] See Figure 3 、 5 and 6. A mounting plate 230 is fixedly installed on the top of the ventilation duct 20. The same first screw 60 passes through the mounting plate 230, the side wall of the lower channel steel 10 and the side wall of the upper channel steel 30. The first screw 60 is connected to the first nut 610. It should be noted that there are several mounting plates 230, and several corresponding first screws 60 and first nuts 610 are also provided. First connecting holes are provided on the mounting plate 230, the side wall of the lower channel steel 10 and the side wall of the upper channel steel 30, so that the first screw 60 passes through three corresponding first connecting holes and is then connected to the first nut 610. The connection between the lower channel steel 10, the upper channel steel 30 and the mounting plate 230 can be realized to complete the assembly purpose between the lower channel steel 10, the upper channel steel 30 and the ventilation duct 20.

[0028] Furthermore, the bottom of the first connecting hole on the upper channel steel 30 is open, so that the upper channel steel 30 is covered on the lower channel steel 10, and the bottom opening of the first connecting hole is sleeved on the first screw 60, and then the first screw 60 is connected and clamped with the first nut 610.

[0029] See Figure 4 and 5A cable channel 70 is formed between the lower channel steel 10 and the upper channel steel 30. Openings are set at both ends of the cable channel 70. Sealing plates 80 are inserted into the openings at both ends of the cable channel 70. A connecting plate 810 is fixedly installed on the side wall of one end of the sealing plate 80. The same second screw 820 passes through the connecting plate 810 and the bottom of the lower channel steel 10. The second screw 820 is connected to the second nut 830. In the specific setting, the size of the sealing plate 80 is adapted to the cable channel 70. Furthermore, a second connecting hole is opened at the bottom of the lower channel steel 10 and the connecting plate 810. The second screw 820 is passed through two corresponding second connecting holes and then connected with the second nut 830 to fix the sealing plate 80 to the end of the cable channel 70 to complete the assembly of the bridge. It should be noted that holes corresponding to the cables are opened on the sealing plate 80, so that the cables can pass through the holes set on the sealing plate 80.

[0030] When assembling this trough type cable fireproof bridge: first place the ventilation duct 20 in the lower channel steel 10, and the two ventilation ducts 20 are placed on the side walls at both ends of the lower channel steel 10, and the first screw 60 is passed through the mounting plate 230 and the side wall of the lower channel steel 10, and then several sliders 40 are installed between the two ventilation ducts 20, specifically, the two guide blocks 410 are respectively inserted into the guide rails 220 on both sides, and then the sliders 40 can be moved to adjust their position in the lower channel steel 10, and then the isolation belt 50 is installed, and the isolation belt 50 is passed through several sliders 40 in sequence. Yes, then install two sealing plates 80, pass the second screw 820 through the connecting plate 810 and the bottom of the lower channel steel 10, and then connect it with the second nut 830 to achieve the installation of the sealing plate 80. Then pass the cable through the sealing plate 80 and the slider 40 to complete the cable installation. Finally, install the upper channel steel 30, cover the upper channel steel 30 on the lower channel steel 10, and at the same time, the first connecting hole on the upper channel steel 30 is put on the first screw 60, and the first nut 610 is connected to the first screw 60 to fix the upper channel steel 30 to complete the purpose of bridge assembly.

[0031] It should be noted that the specific model specifications of the lower channel steel 10 and the upper channel steel 30 need to be selected and determined according to the actual specifications of the device, and the specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0032] The foregoing is merely an embodiment of the present application and is not intended to limit the scope of protection of the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included within the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined or explained in subsequent figures.

Claims

1. A trough type cable fireproof bridge, characterized in that: The invention comprises a lower channel steel (10), wherein ventilation ducts (20) are installed on both end side walls of the lower channel steel (10), and the top of the lower channel steel (10) is connected to an upper channel steel (30), and a plurality of sliders (40) for separating cables are slidably connected between the two ventilation ducts (20), and isolation belts (50) are slidably penetrated on the plurality of sliders (40), and the isolation belts (50) are located between two adjacent cables.

2. A trough-type cable fire-proof bridge according to claim 1, characterized in that: The ventilation duct (20) is U-shaped and has a plurality of ventilation holes (210) formed thereon. A plurality of through holes (110) are formed on the side wall of the lower channel steel (10), and the plurality of through holes (110) are all located within the ventilation duct (20).

3. The trough-type fireproof cable tray according to claim 1, characterized in that: Guide rails (220) are fixedly mounted on the side walls of the two ventilation ducts (20), guide blocks (410) are fixedly mounted on the side walls at both ends of the slider (40), and the two guide blocks (410) are respectively slidably arranged in the two guide rails (220).

4. The trough-type fireproof cable tray according to claim 1, characterized in that: The slider (40) is provided with a plurality of mounting holes (420), and the cables are passed through the mounting holes (420).

5. The trough-type fireproof cable tray according to claim 1, characterized in that: A plurality of isolation belts (50) are provided.

6. The trough-type fireproof cable tray according to claim 4, characterized in that: A mounting plate (230) is fixedly mounted on the top of the ventilation duct (20), and a first screw rod (60) passes through the mounting plate (230), the side wall of the lower channel steel (10), and the side wall of the upper channel steel (30), and a first nut (610) is connected to the first screw rod (60).

7. A trough-type fireproof cable tray according to any one of claims 1 to 6, characterized in that: A cable channel (70) is formed between the lower channel steel (10) and the upper channel steel (30), and both ends of the cable channel (70) are open.

8. The trough-type fireproof cable tray according to claim 7, characterized in that: Sealing plates (80) are inserted into the openings at both ends of the cable channel (70), a connecting plate (810) is fixedly mounted on a side wall at one end of the sealing plate (80), a second screw (820) passes through the connecting plate (810) and the bottom of the lower channel steel (10), and a second nut (830) is connected to the second screw (820).

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