Fireproof cable bridge

Abstract

The utility model relates to a fireproof cable bridge which comprises a bridge shell, the outer side of the bridge shell is provided with a fireproof mechanism for fire prevention and extinguishment of the bridge, and the inner wall of the bridge shell is provided with a placement mechanism for fireproof placement of cables. According to the fireproof cable bridge, through arrangement of the fireproof mechanism and mutual cooperation of a cover plate, a water tank, a water pump, a three-way pipe, a flow guide pipe, a spray head and the like, when a cable in the bridge is spontaneously ignited and ignited through a fire sensor, smoke and high temperature generated by combustion of an insulating rubber of the cable can trigger the sensor to give an alarm, and then it is judged that a fire occurs; the water pump is started through the controller, the fire extinguishing agent filled in the water tank is pumped through the material pumping pipe, the fire extinguishing agent is sprayed out of the spray head into the bridge shell to isolate air and prevent fire spreading, the fire prevention and extinguishing effect can be effectively achieved, response is timely, and sufficient time can be provided for maintainers to rapidly arrive at treatment.

Description

Technical Field

[0001] The utility model relates to the technical field of cable bridges, in particular to a fireproof cable bridge. Background Art

[0002] Cable trays are usually used for laying cables and their appearance resembles a bridge, so they are called cable trays. This is a general term. Cable trays are mainly divided into two categories in terms of structure: ladder type and tray type. The trays are further divided into non-porous trays, perforated trays, and grid trays. You can also choose whether to come with a cover.

[0003] As disclosed in Chinese patent announcement number (CN211655645U), a fire-proof cable tray includes a cover plate, fastening bolts, a mounting seat, a first flame-retardant plate, a connecting plate, a flame-retardant double-sided tape, a flame-retardant coated cloth, a second flame-retardant plate and a flame-retardant coating, the cover plate is installed on the mounting seat, the first flame-retardant plate is installed on the inner walls of the two opposite side walls of the mounting seat, the second flame-retardant plate is installed on the two opposite side walls of the first flame-retardant plate, the connecting plate is installed at the connection between the first flame-retardant plate and the second flame-retardant plate, the flame-retardant coating is sprayed on the outer surface of the mounting seat and the cover plate, the flame-retardant double-sided tape is bonded to the outer surface of the flame-retardant coating, the flame-retardant coated cloth is bonded to the outer surface of the flame-retardant double-sided tape, and the fastening bolts are connected to the two opposite side walls of the mounting seat. This design solves the problem of poor use effect of the original fire-proof cable tray. The utility model has a reasonable structure, is easy to combine and install, has good fire-retardant effect, stable connection and strong practicality.

[0004] However, the above patent still has the problem of poor fire prevention effect on the cable bridge. For example, in the above patent, a flame retardant plate is set in the bridge to prevent the spread of fire. However, in actual use, the new fire prevention effect is not good. After the cable burns and catches fire, it cannot play a certain flame retardant role in preventing the fire from spreading, and it cannot last until the firefighters extinguish the fire. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a fireproof cable tray having the advantages of good fireproofing effect, etc., and solves the problem of poor fireproofing effect of the cable tray in the prior art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fireproof cable tray, comprising a tray shell, the outer side of the tray shell is provided with a fireproof mechanism for preventing and extinguishing fire on the tray, and the inner wall of the tray shell is provided with a placement mechanism for placing cables in a fireproof manner;

[0007] The fire protection mechanism includes a cover plate, a water tank, a water pump, a feed pipe, a water supply pipe, a tee, two guide pipes and a nozzle. The cover plate is mounted on the outer side of the bridge frame shell, the water tank is fixed to the upper surface of the cover plate, the water pump is fixed to the middle part of the upper surface of the cover plate, one end of the feed pipe is connected to the water pumping end of the water pump, and the other end of the feed pipe is connected to the inner wall of the water tank, the top end of the water supply pipe is connected to the water outlet end of the water pump, the two guide pipes are respectively fixed to the front and rear sides of the inner wall of the cover plate, the top end of the tee is connected to the bottom end of the water supply pipe, and the bottom ends of the tee are respectively connected to the two guide pipes, and the nozzle is connected to the outer side of the guide pipe.

[0008] Furthermore, a fire sensor is fixed to the lower surface of the cover plate, and a controller is fixed to the outer side of the bridge frame shell.

[0009] Furthermore, the outer side of the water tank is connected with a feeding pipe, and the top end of the feeding pipe passes through and extends to the inner bottom wall of the water tank.

[0010] Furthermore, the number of the nozzles is not less than two and they are evenly distributed on the outsides of the two flow guide pipes.

[0011] Furthermore, the placement mechanism includes a flame retardant inner plate, a slide rail, four support blocks, and four placement plates. The flame retardant inner plate is fixed to the inner wall of the bridge frame outer shell, and the slide rail is fixed to the inner bottom wall of the flame retardant inner plate. The lower surfaces of the four support blocks are provided with slide grooves, and the four support blocks slide along the outer surfaces of the slide rails through the slide grooves. The four placement plates are respectively fixed to the upper surfaces of the four support blocks, and the upper surface of the placement plates is provided with a plurality of cable slots.

[0012] Furthermore, both left and right sides of the bridge housing are provided with threading holes corresponding to the positions of the cable slots.

[0013] Furthermore, an anti-slip pad is fixed to the inner wall of the cable slot.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] 1. The fireproof cable tray is equipped with a fireproof mechanism. Through the cooperation between the cover plate, water tank, water pump, tee pipe, guide pipe and nozzle, when the cable inside the tray spontaneously ignites and catches fire, the smoke and high temperature generated by the burning of the insulating rubber will trigger the sensor alarm, and then it will be judged as a fire. The water pump is started by the controller to extract the fire extinguishing agent filled in the water tank and spray it from the nozzle into the inside of the tray shell to isolate the air and prevent the fire from spreading. It can effectively prevent and extinguish fires, and the timely response can provide sufficient time for maintenance personnel to arrive quickly to deal with the problem.

[0016] 2. The fireproof cable tray is provided with a placement mechanism, and the flame-retardant inner plate, slide rail, support block, placement plate and cable slot cooperate with each other. First, when carrying cables, multiple cables are respectively passed through different threading holes, and then passed out from the threading holes on the other side, and the cover plate is removed, and the multiple cables are respectively placed in the nearest cable slots. By pulling the support block to move along the slide rail, the position of the placement plate can be changed to adjust the support point of the cable to avoid bending dead corners, and the cables can be placed separately to avoid overheating and spontaneous combustion caused by the overlapping cables. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is the front view of the structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the fire prevention mechanism of the utility model;

[0020] Figure 4 This is a side view of the fire protection mechanism of the utility model;

[0021] Figure 5 This is a schematic diagram of the placement mechanism of the utility model;

[0022] Figure 6 It is a side view of the placement mechanism of the utility model.

[0023] In the figure: 1 bridge frame shell, 2 fire protection mechanism, 21 cover plate, 22 water tank, 23 water pump, 24 extraction pipe, 25 water supply pipe, 26 three-way pipe, 27 guide pipe, 28 nozzle, 3 placement mechanism, 31 flame retardant inner plate, 32 slide rail, 33 support block, 34 placement plate, 35 cable slot. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-2 A fireproof cable tray in this embodiment includes a tray shell 1, a fireproof mechanism 2 for preventing and extinguishing fire on the tray is provided on the outer side of the tray shell 1, and a placement mechanism 3 for placing cables in a fireproof manner is provided on the inner wall of the tray shell 1.

[0026] See also Figure 3-4In order to improve the fire prevention effect of the cable bridge, the fire prevention mechanism 2 in this embodiment includes a cover plate 21, a water tank 22, a water pump 23, a pumping pipe 24, a water delivery pipe 25, a three-way pipe 26, two guide pipes 27 and a nozzle 28. The cover plate 21 is mounted on the outside of the bridge housing 1. The internal cables of the bridge are inspected and the fire prevention mechanism 2 is assembled and installed with the bridge housing 1 by disassembling the cover plate 21. The water tank 22 is fixed to the upper surface of the cover plate 21, and the water pump 23 is fixed to the middle of the upper surface of the cover plate 21. One end of the pumping pipe 24 is connected to the water pumping end of the water pump 23, and the other end of the pumping pipe 24 is connected to the inner wall of the water tank 22. The top of the water supply pipe 25 is connected to the water outlet end of the water pump 23, and the two guide pipes 27 are respectively fixed to the front and rear sides of the inner wall of the cover plate 21. The fire extinguishing agent filled in the water tank 22 is extracted through the extraction pipe 24, and then the fire extinguishing agent is diverted and introduced into the two guide pipes 27 through the water supply pipe 25 and the three-way pipe 26. The top of the three-way pipe 26 is connected to the bottom end of the water supply pipe 25, and the bottom end of the three-way pipe 26 is respectively connected to the two guide pipes 27, and the nozzle 28 is connected to the outside of the guide pipe 27. As the water pressure increases, the fire extinguishing agent is sprayed from the nozzle 28 into the interior of the bridge frame shell 1 to isolate the air and prevent the fire from spreading, which can effectively play a role in fire prevention and fire extinguishing.

[0027] In this embodiment, a fire sensor is fixed on the lower surface of the cover plate 21. When the cables inside the bridge frame spontaneously ignite and catch fire, the smoke and high temperature generated by the burning of the insulating rubber will trigger the sensor alarm, and then it is determined that a fire has occurred. A controller is fixed to the outside of the bridge frame shell 1, and the water pump 23 is started by the controller. The outside of the water tank 22 is connected to a feeding pipe, and the top of the extraction pipe 24 passes through and extends to the inner bottom wall of the water tank 22. The number of nozzles 28 is not less than two, and they are evenly distributed on the outside of the two guide pipes 27.

[0028] See also Figure 5-6 In order to place cables on the cable tray, the placement mechanism 3 in this embodiment includes a flame retardant inner plate 31, a slide rail 32, four support blocks 33, and four placement plates 34. The flame retardant inner plate 31 is fixed to the inner wall of the cable tray shell 1. The flame retardant inner plate 31 can further improve the flame retardant performance of the cable tray to avoid high temperature burning through the cable tray. The slide rail 32 is fixed to the inner bottom wall of the flame retardant inner plate 31. The lower surfaces of the four support blocks 33 are provided with slide grooves, and the four support blocks 33 slide along the outer surface of the slide rail 32 through the slide grooves. The four placement plates 34 are respectively fixed to the upper surfaces of the four support blocks 33. The upper surface of the placement plate 34 is provided with a plurality of cable slots 35. The cover plate 21 is removed, and multiple cables are respectively placed in the nearest cable slots 35. By pulling the support block 33 to move along the slide rail 32, the position of the placement plate 34 can be changed to adjust the support point of the cable to avoid bending dead corners, and placing the cables separately can avoid overheating and spontaneous combustion caused by overlapping cables.

[0029] In this embodiment, the left and right sides of the bridge frame housing 1 are provided with threading holes corresponding to the positions of the cable slots 35. When carrying cables, multiple strands of cables are respectively passed through different threading holes and then passed out from the threading holes on the other side. An anti-slip pad is fixed to the inner wall of the cable slot 35.

[0030] The working principle of the above embodiment is:

[0031] (1) When the cable bridge is used to improve the fire prevention effect, the cover plate 21 is disassembled to inspect the internal cables of the bridge and the fire prevention mechanism 2 is combined with the bridge housing 1. When the cables inside the bridge spontaneously ignite and catch fire, the smoke and high temperature generated by the burning of the insulating rubber will trigger the sensor alarm through the fire sensor, and then it is judged that a fire has occurred. The water pump 23 is started by the controller, and the fire extinguishing agent filled in the water tank 22 is extracted through the suction pipe 24. The fire extinguishing agent is then diverted and introduced into the two guide pipes 27 through the water supply pipe 25 and the three-way pipe 26. As the water pressure increases, the fire extinguishing agent is sprayed from the nozzle 28 into the interior of the bridge housing 1 to isolate the air and prevent the fire from spreading, which can effectively play a role in fire prevention and fire extinguishing.

[0032] (2) When the cable tray is used for placing cables, the flame retardant inner plate 31 can be used to further improve the flame retardant performance of the cable tray to prevent high temperature from burning through the cable tray. At the same time, when carrying cables, multiple cables are respectively passed through different threading holes and then passed out from the threading holes on the other side. The cover plate 21 is removed and the multiple cables are respectively placed in the nearest cable slots 35. By pulling the support block 33 to move along the slide rail 32, the position of the placement plate 34 can be changed to adjust the support point of the cable to avoid bending dead corners. In addition, placing the cables separately can prevent overheating and spontaneous combustion caused by overlapping cables.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0034] The standard parts used in this application document can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented through simple programming by technicians in this field, which is common knowledge in this field. Therefore, this application document will no longer explain the control method and circuit connection in detail.

[0035] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A fireproof cable tray, comprising a tray housing (1), characterized in that: The outer side of the bridge housing (1) is provided with a fire prevention mechanism (2) for preventing and extinguishing fire on the bridge, and the inner wall of the bridge housing (1) is provided with a placement mechanism (3) for placing cables in a fire-proof manner; The fire prevention mechanism (2) comprises a cover plate (21), a water tank (22), a water pump (23), a material extraction pipe (24), a water delivery pipe (25), a three-way pipe (26), two flow guide pipes (27) and a nozzle (28); the cover plate (21) is sleeved on the outer side of the bridge frame housing (1); the water tank (22) is fixed to the upper surface of the cover plate (21); the water pump (23) is fixed to the middle part of the upper surface of the cover plate (21); one end of the material extraction pipe (24) is connected to the water pump (23); The water pumping end is connected, and the other end of the pumping pipe (24) is connected to the inner wall of the water tank (22), the top end of the water supply pipe (25) is connected to the water outlet end of the water pump (23), the two guide pipes (27) are respectively fixed to the front and rear sides of the inner wall of the cover plate (21), the top end of the three-way pipe (26) is connected to the bottom end of the water supply pipe (25), and the bottom end of the three-way pipe (26) is respectively connected to the two guide pipes (27), and the nozzle (28) is connected to the outer side of the guide pipe (27).

2. A fireproof cable tray according to claim 1, characterized in that: A fire sensor is fixed on the lower surface of the cover plate (21), and a controller is fixed on the outer side of the bridge housing (1).

3. A fireproof cable tray according to claim 1, characterized in that: The outside of the water tank (22) is connected to a feeding pipe, and the top end of the extraction pipe (24) penetrates and extends to the inner bottom wall of the water tank (22).

4. The fireproof cable tray according to claim 1, characterized in that: The number of the nozzles (28) is no less than two and they are evenly distributed on the outsides of the two flow guide pipes (27).

5. The fireproof cable tray according to claim 1, characterized in that: The placement mechanism (3) comprises a flame retardant inner plate (31), a slide rail (32), four support blocks (33), and four placement plates (34); the flame retardant inner plate (31) is fixed to the inner wall of the bridge frame outer shell (1); the slide rail (32) is fixed to the inner bottom wall of the flame retardant inner plate (31); the lower surfaces of the four support blocks (33) are provided with slide grooves, and the four support blocks (33) slide along the outer surface of the slide rail (32) through the slide grooves; the four placement plates (34) are respectively fixed to the upper surfaces of the four support blocks (33); and the upper surfaces of the placement plates (34) are provided with a plurality of cable slots (35).

6. A fireproof cable tray according to claim 5, characterized in that: The left and right sides of the bridge housing (1) are both provided with threading holes corresponding to the positions of the cable slots (35).

7. The fireproof cable tray according to claim 5, characterized in that: An anti-slip pad is fixed to the inner wall of the cable slot (35).

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