Fireproof bridge

Abstract

The utility model discloses a fireproof bridge which comprises a bridge body and a plurality of cables, the bridge body comprises a cable placing groove and a cover plate installed at the upper end of the cable placing groove, and the fireproof bridge is characterized in that a supporting frame is arranged in the cable placing groove, and a fire extinguishing cavity is formed in the supporting frame; each cable is arranged in the cable containing groove and penetrates through the supporting frame and the fire extinguishing cavity, the fire extinguishing cavity internally comprises a gas collecting bottle containing a flame retardant and a trigger pipe communicated with the gas collecting bottle, the trigger pipe is laid in the arrangement direction of the cables and is arranged close to each cable, the trigger pipe comprises a plurality of heat insulation pipes and a plurality of flammable pipes, and the heat insulation pipes are communicated with the flammable pipes. The heat insulation pipes are used for being connected with the gas collection bottles, the inflammable pipes are laid in the direction perpendicular to the arrangement direction of the cables, a mounting structure is arranged between each heat insulation pipe and the corresponding inflammable pipe which are adjacent, the fire extinguishing function of the cables can be achieved in the mode, and then serious losses caused by further expansion of the combustion fire behavior of the cables in the bridge body are avoided.

Description

Technical Field

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

[0002] In modern buildings, cable laying is an important project. During the current cable laying, cable trays are mostly used to support the cables, and the cables are fixed to the cable trays by wire clamps. When the cables pass through the shaft, especially the floor slab, the cable trays need to be passed through the reserved grooves of the floor slab.

[0003] In actual cable fire situations, most of the fires are caused by the cable connections. When the cables catch fire, there is a lack of effective fire prevention measures, which causes the flames on the cables to spread along the cables, causing the cables between floors to catch fire, which can easily cause major fires and bring serious harm to buildings, causing major fire accidents. In summary, a fireproof bridge is proposed to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a fireproof bridge frame, which can realize the cable fire extinguishing function, thereby preventing the cable burning fire in the bridge frame body from further expanding and causing serious losses.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions: a fireproof bridge, including a bridge body and multiple cables, the bridge body including a wire trough and a cover plate installed on the upper end of the wire trough, characterized in that: a support frame is arranged in the wire trough, a fire extinguishing cavity is formed in the support frame, each of the cables is placed in the wire trough and passes through the support frame and the fire extinguishing cavity, the fire extinguishing cavity includes a gas collecting bottle filled with flame retardant and a trigger tube connected to the gas collecting bottle, the trigger tube is laid along the arrangement direction of the cables and is arranged close to each cable, the trigger tube includes multiple insulated tubes and multiple flammable tubes, the insulated tubes are used to connect the gas collecting bottles, the flammable tubes are laid along the arrangement direction perpendicular to the cables, and there is an installation structure between adjacent insulated tubes and flammable tubes.

[0006] By adopting the above technical solution, when the connection of the cable is located in the fire extinguishing cavity and catches fire, the flame of the burning cable ignites the flammable tube, causing the flammable tube to disconnect and release the flame retardant which will fill the fire extinguishing cavity, extinguishing the burning flame and preventing the flame on the cable from being transmitted along the cable to the outside of the fire extinguishing cavity.

[0007] It is further configured as follows: a heat insulation cover is arranged in the fire extinguishing cavity, the heat insulation cover isolates the fire extinguishing cavity into a heat insulation cavity, and the gas collecting bottle is located in the heat insulation cavity.

[0008] By adopting the above technical solution and setting the heat insulation cover, it is effectively prevented that the gas collecting bottle will be heated up and exploded due to the high temperature of the flame.

[0009] It is further configured as follows: the support frame includes an end cover and a bottom cover, and mutually plug-in plug-in columns and plug-in slots are provided between the end cover and the bottom cover. When the plug-in columns and the plug-in slots are plugged in, the fire extinguishing chamber is relatively isolated from the outside.

[0010] By adopting the above technical solution, the plug-in column is connected with the plug-in groove, which facilitates the quick installation between the end cover and the bottom cover while forming a barrier effect of the fire extinguishing chamber relative to the outside world. The barrier can effectively prevent more oxygen from entering the fire extinguishing chamber, prevent the fire from increasing, and improve the efficiency and reliability of fire extinguishing.

[0011] It is further configured as follows: a locking structure is provided between the support frame and the wire groove, the locking structure comprising locking grooves opened on the two side walls of the wire groove facing each other, two locking blocks and a force spring driving the two locking blocks to move in opposite directions and adapted to lock the locking grooves, and the locking blocks are slidably arranged on the support frame.

[0012] By adopting the above technical solution and setting the locking structure, the support frame can be disassembled, assembled and fixed in the wire groove.

[0013] It is further configured as follows: the support frame is slidably arranged along the length direction of the wire placement groove, a plurality of pairs of locking grooves are arranged at intervals along the length direction of the wire placement groove, and a pair of locking blocks are located in corresponding locking grooves.

[0014] By adopting the above technical solution, a plurality of pairs of locking grooves are provided to adjust the support frame to different positions of the cable trough facing the cable connection.

[0015] It is further configured as follows: the disassembly and assembly structure includes a locking tooth arranged at the butt end of the flammable pipe, and an L-shaped locking groove arranged on the insulation pipe for locking. The L-shaped locking groove includes an entry section and a locking section. When the locking tooth is located in the locking section, it is used to limit the flammable pipe from separating from the insulation pipe.

[0016] By adopting the above technical solution, the locking teeth cooperate with the L-shaped sliding groove to realize the rapid installation of the flammable pipe, and the operation is simple.

[0017] It is further configured as follows: a sealing ring is sleeved on the thermal insulation tube, and when the locking tooth is located in the locking section, the sealing ring is used to form a seal between the thermal insulation tube and the flammable tube.

[0018] By adopting the above technical solution and setting a sealing ring, the sealing between the heat-insulating pipe and the flammable pipe is achieved, and the leakage of the flame retardant is avoided under the condition of fire extinguishing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an exploded schematic diagram of an embodiment;

[0020] Figure 2 is a top cross-sectional view of an embodiment;

[0021] Figure 3 A schematic diagram of the locking structure of an embodiment;

[0022] In the figure: 11, cable; 12, wire trough; 13, cover plate; 31, fire extinguishing chamber; 32, gas collecting bottle; 331, insulation pipe; 332, flammable pipe; 41, insulation cover; 42, insulation chamber; 51, end cover; 52, bottom cover; 53, plug-in column; 54, plug-in slot; 61, locking slot; 62, locking block; 63, force spring; 71, locking tooth; 72, L-shaped locking slot; 721, entry section; 722, locking section; 81, sealing ring;. DETAILED DESCRIPTION

[0023] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0024] refer to Figures 1 to 3 A fireproof bridge, comprising a bridge body and a plurality of cables 11, the bridge body comprising a cable trough 12 and a cover plate 13 fixedly mounted on the upper end of the cable trough 12, characterized in that: a support frame is arranged in the cable trough 12, a fire extinguishing cavity 31 is formed in the support frame, each cable 11 is arranged in the cable trough 12 and passes through the support frame and the fire extinguishing cavity 31, the fire extinguishing cavity 31 comprises a gas collecting bottle 32 filled with a flame retardant and a trigger tube connected to the gas collecting bottle 32, the trigger tube is laid along the arrangement direction of the cables 11 and close to each A cable 11 is provided, and the trigger tube includes a plurality of insulated tubes 331 and a plurality of flammable tubes 332. The insulated tubes 331 are used to connect the gas collecting bottle 32. The flammable tubes 332 are laid along an arrangement direction perpendicular to the cable 11. An installation structure is provided between adjacent insulated tubes 331 and flammable tubes 332. A heat insulating cover 41 is provided in the fire extinguishing cavity 31. The heat insulating cover 41 isolates the fire extinguishing cavity 31 into an insulated cavity 42. The gas collecting bottle 32 is located in the insulated cavity 42. The specific component of the flame retardant is carbon tetrachloride, and the specific component of the heat insulating cover 41 is mineral wool.

[0025] The support frame includes an end cover 51 and a bottom cover 52, and a plug-in column 53 and a plug-in slot 54 that are plugged into each other are arranged between the end cover 51 and the bottom cover 52. When the plug-in column 53 and the plug-in slot 54 are plugged into each other, the fire extinguishing chamber 31 is relatively blocked from the outside world. A locking structure is arranged between the support frame and the wire groove 12, and the locking structure includes a locking groove 61 opened on the two side walls of the wire groove 12 facing each other, two locking blocks 62, and a force spring 63 that drives the two locking blocks 62 to move in reverse and adapts to the locking groove 61 to lock. The locking block 62 is slidably arranged on the support frame, and the support frame is slidably arranged along the length direction of the wire groove 12. A plurality of pairs of locking grooves 61 are arranged at intervals along the length direction of the wire groove 12, and a pair of locking blocks 62 is located in the corresponding locking groove 61.

[0026] The disassembly and assembly structure includes a locking tooth 71 arranged at the butt end of the flammable tube 332, and an L-shaped locking groove 72 arranged on the thermal insulation tube 331 for locking. The L-shaped locking groove 72 includes an entry section 721 and a locking section 722. When the locking tooth 71 is located in the locking section 722, it is used to limit the flammable tube 332 from being separated from the thermal insulation tube 331. A sealing ring 81 is provided on the thermal insulation tube 331. When the locking tooth 71 is located in the locking section 722, the sealing ring 81 is used to form a seal between the thermal insulation tube 331 and the flammable tube 332.

[0027] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A fireproof bridge, comprising a bridge body, a plurality of cables (11) being accommodated in the bridge body, the bridge body comprising a cable trough (12) and a cover plate (13) mounted on the upper end of the cable trough (12), characterized in that: A support frame is arranged in the cable trough (12), and a fire extinguishing cavity (31) is formed in the support frame. Each cable (11) is arranged in the cable trough (12) and passes through the support frame and the fire extinguishing cavity (31). The fire extinguishing cavity (31) includes a gas collecting bottle (32) filled with a flame retardant and a trigger tube connected to the gas collecting bottle (32). The trigger tube is laid along the arrangement direction of the cables (11) and is arranged close to each cable (11). The trigger tube includes a plurality of heat-insulating tubes (331) and a plurality of flammable tubes (332). The heat-insulating tubes (331) are used to connect the gas collecting bottles (32). The flammable tubes (332) are laid along the arrangement direction perpendicular to the cables (11), and a mounting structure is provided between adjacent heat-insulating tubes (331) and flammable tubes (332).

2. The fireproof bridge according to claim 1, characterized in that: A heat insulation cover (41) is arranged in the fire extinguishing chamber (31), and the heat insulation cover (41) isolates the fire extinguishing chamber (31) into a heat insulation chamber (42), and the gas collecting bottle (32) is located in the heat insulation chamber (42).

3. The fireproof bridge according to claim 1, characterized in that: The support frame comprises an end cover (51) and a bottom cover (52), and a plug-in column (53) and a plug-in slot (54) which are plugged into each other are arranged between the end cover (51) and the bottom cover (52). When the plug-in column (53) and the plug-in slot (54) are plugged into each other, the fire extinguishing chamber (31) is relatively isolated from the outside.

4. The fireproof bridge according to claim 1, characterized in that: A locking structure is provided between the support frame and the wire slot (12), the locking structure comprising locking slots (61) provided on opposite side walls of the wire slot (12), two locking blocks (62), and a force spring (63) driving the two locking blocks (62) to move in opposite directions and adapted to lock the locking slots (61), wherein the locking blocks (62) are slidably provided on the support frame.

5. The fireproof bridge according to claim 4, characterized in that: The support frame is slidably arranged along the length direction of the wire slot (12), and a plurality of pairs of locking slots (61) are arranged at intervals along the length direction of the wire slot (12), and a pair of locking blocks (62) are located in corresponding locking slots (61).

6. The fireproof bridge according to claim 5, characterized in that: The locking structure comprises a locking tooth (71) arranged at the butt end of the inflammable tube (332), and an L-shaped locking groove (72) arranged on the heat-insulating tube (331) for locking. The L-shaped locking groove (72) comprises an entry section (721) and a locking section (722). When the locking tooth (71) is located in the locking section (722), it is used to restrict the inflammable tube (332) from being separated from the heat-insulating tube (331).

7. The fireproof bridge according to claim 6, characterized in that: The heat-insulating tube (331) is sleeved with a sealing ring (81). When the locking teeth (71) are located at the locking section (722), the sealing ring (81) is used to form a seal between the heat-insulating tube (331) and the flammable tube (332).

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