Fireproof cable routing protection box

Abstract

This invention relates to the field of cable protection box technology and discloses a fireproof cable routing protection box, including a box body, an adapter box, an end cap, multiple heat dissipation holes, and a sealing component. The adapter box allows for the conversion of cable routing positions, and the end cap can close one side of the top and bottom boxes. The heat dissipation holes are located on the top of the top box, allowing heat dissipation from the cables. The sealing component seals the heat dissipation holes in case of fire. In normal operation, the plug detaches from the surface of the heat dissipation hole, allowing normal heat dissipation through the cables. In case of fire, the fire source burns the cable, causing it to lose tension on the connecting plate. The spring force causes the plug to engage inside the heat dissipation hole, sealing it and blocking the fire source. This protects the cables inside the protective box, enabling heat dissipation during normal cable use and protection in case of fire.

Description

Technical Field

[0001] This invention relates to the field of cable protection box technology, specifically a fireproof cable routing protection box. Background Technology

[0002] Ships have multiple locations that are potential fire hazards. In the event of a fire, open flames could burn cables, affecting the normal power supply to equipment. Cable trays are crucial devices in electrical engineering used for laying and protecting cables, and are widely used in buildings, factories, tunnels, and other locations. To meet fire safety requirements, cable trays typically need to be fire-resistant to prevent the spread of fire along the cable channels and ensure continuous power supply to fire-fighting equipment in the event of a fire.

[0003] Currently, fire-resistant cable trays mainly employ a sealed structure design. Under normal operating conditions, the cover and the tray body form a closed space, with no ventilation holes on the side walls and bottom. This sealed structure effectively blocks flames and high-temperature smoke during a fire, preventing the fire from spreading along the cable channel. It also inhibits cable combustion through an oxygen-deficient environment. However, in actual use, cables generate Joule heat during normal operation, especially under high current conditions, leading to a significant increase in cable core temperature. The sealed interior space prevents air convection, hindering heat dissipation and creating localized high-temperature environments. Prolonged operation in such high-temperature environments accelerates the aging of the cable insulation layer. Therefore, a fire-resistant cable routing protection box has been proposed. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the present invention provides a fireproof cable routing protection box to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a fireproof cable routing protection box, comprising: Box body; An adapter box, wherein the adapter is disposed on one side of the box body, and the adapter box enables the conversion of the cable routing position; End caps are provided on one side of the top box and the bottom box, and one side of the top box and the bottom box can be closed by means of the end caps; Multiple heat dissipation holes are provided on the top of the set-top box to dissipate heat from the cables. A sealing assembly is installed inside the top box and bottom box. The sealing assembly seals the heat dissipation holes in the event of a fire, preventing the fire source from entering the top box and bottom box and burning the cables.

[0006] Furthermore, the box body includes a top box and a bottom box, with the top box spliced ​​onto the top box.

[0007] Furthermore, the adapter box includes a top adapter box and a bottom adapter box, which are connected to one side of the top box and the bottom box.

[0008] Furthermore, the sealing assembly includes a connecting plate, with multiple side plates connected to its sides. The top of each side plate is provided with a plug corresponding to the location of the heat dissipation hole. One end of the connecting plate is provided with a rope for generating a pulling force on the connecting plate. A spring is provided between the top inner wall of the top box and the connecting plate for providing a restoring force to the plug.

[0009] Furthermore, the top inner wall of the top box is provided with multiple guide rods, the connecting plate is movably sleeved on the outside of the guide rods, and the spring is sleeved on the outside of the guide rods.

[0010] Furthermore, a winding assembly for supporting the rope is provided on one side of the bottom box.

[0011] Furthermore, the winding assembly includes two fixing blocks disposed on the side of the bottom box, with a rotating shaft rotatably passing between the two fixing blocks. One end of the rope is connected to the outside of the rotating shaft, and the outside of the rotating shaft is provided with threads. A wing nut is threaded onto the threads, and the wing nut abuts against the surface of the fixing block.

[0012] Furthermore, the inner wall of the base box is provided with guide wheels, and the rope passes around the surface of the guide wheels.

[0013] Furthermore, the bottom of both the top box and the top adapter box is provided with a second side strip, and the top of both the bottom box and the bottom adapter box are provided with a second slot adapted to the second side strip. The outside of the second side strip is connected with a plurality of second rivets, the inside of the second slot is provided with a second insertion hole corresponding to the second rivet, and the inside of the second slot is provided with a second sealing bag.

[0014] Furthermore, a first side strip is connected to one side of both the top box and the top adapter box, and a first slot adapted to the first side strip is opened on the other side of the top box, the top adapter box and the end cover. Multiple first rivets are provided on the outside of the first side strip, and multiple first insertion holes adapted to the first rivets are opened on the inner wall of the first slot. A first sealing plastic bag is provided inside the second slot.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. In this invention, under normal working conditions, the plug detaches from the surface of the heat dissipation hole and heats up normally through the cable. When a fire occurs, the fire source burns the cable, and the cable loses its tension on the connecting plate. The spring force causes the plug to be driven into the interior of the heat dissipation hole to seal the heat dissipation hole and block the fire source, thereby protecting the cable inside the protective box. This allows the cable to dissipate heat when it is in normal use and protects the cable in the event of a fire.

[0016] 2. In this invention, when the top box and the bottom box are connected, the first side strip is inserted into the inside of the first slot, and the first rivet punctures the first sealing bag. When two adjacent top boxes are spliced ​​together, the second side strip is inserted into the inside of the second slot, and the second rivet punctures the second sealing strip, so that the sealant inside fills the gap, fills the gap, and increases the airtightness. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure from a first perspective of the present invention; Figure 2 This is a schematic diagram of the second perspective structure of the present invention; Figure 3 This is a schematic diagram of the left-side structure of the box body of the present invention; Figure 4 This is a schematic diagram of the right side of the box body of the present invention; Figure 5 This is a schematic diagram of the right-side plan view of the box body of the present invention; Figure 6 This is a schematic diagram of the cross-sectional structure of the present invention. Figure 7 This is a schematic diagram of the exploded structure of the present invention; Figure 8 For the present invention Figure 7 Enlarged structural diagram at point A in the middle; Figure 9 For the present invention Figure 6 Enlarged structural diagram at point B; Figure 10 For the present invention Figure 7 Enlarged structural diagram at point C.

[0018] In the diagram: 100, top box; 101, bottom box; 200, top adapter box; 201, bottom adapter box; 300, end cap; 400, heat dissipation hole; 500, connecting plate; 501, spring; 502, side plate; 503, plug; 504, rope; 505, guide wheel; 600, shaft; 601, thread; 602, wing nut; 700, first side strip; 701, first tie rod; 702, first slot; 703, first sealing bag; 704, second socket; 800, second slot; 801, second tie rod. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example 1: Please refer to the following: Figures 1-10 This invention provides a technical solution: a fireproof cable routing protection box, including a box body, an adapter box, an end cap 300, multiple heat dissipation holes 400, and a sealing component. The adapter box is installed on one side of the box body, enabling the conversion of cable routing positions. The end cap 300 is installed on one side of the top box 100 and the bottom box 101, allowing one side of the top box 100 and the bottom box 101 to be closed. The heat dissipation holes 400 are located on the top of the top box 100, allowing heat dissipation for the cables. The sealing component is installed inside the top box 100 and the bottom box 101, sealing the heat dissipation holes 400 in case of fire, preventing fire from entering the top box 100 and the bottom box 101 and burning the cables.

[0021] In this embodiment, the box includes a top box 100 and a bottom box 101, with the top box 100 spliced ​​above the bottom box 101. This split design constitutes the main structure of the protective box, with the top box 100 and the bottom box 101 cooperating to form a closed cavity for accommodating cables. When the top box 100 and the bottom box 101 are opened, cables can be easily passed through their interiors for cable routing, thus solving the problem of cables being difficult to pass through long-distance or bend-filled pipes in traditional conduit installations, and greatly reducing the difficulty of construction and wiring.

[0022] Specifically, the top box 100 and the bottom box 101 adopt a detachable splicing structure, which aims to provide an open operating space for cable laying. Operators can first place the cable on the predetermined path, and then fasten the top box 100 and the bottom box 101 together, avoiding potential insulation damage caused by pulling the cable in narrow conduits. At the same time, this split structure also facilitates later cable inspection or replacement without disrupting the entire protective path; simply opening the top box 100 is sufficient, significantly improving maintenance convenience.

[0023] In this embodiment, the adapter box includes a top adapter box 200 and a bottom adapter box 201, which are connected to one side of the top box 100 and the bottom box 101. The adapter box is specifically designed to handle locations where cable routing changes, such as wall corners or vertical turns, and is a key component for ensuring the integrity of the entire protection system.

[0024] Specifically, the junction box protects the cable at bends, facilitating multi-directional cable routing. The junction box's internal space features a rounded transition surface, preventing the cable from being squeezed or excessively bent at bends due to small bending radii, thus protecting the internal core wires from damage. The top junction box 200 and the bottom junction box 201 work together to form a complete bend structure, with a connection method identical to the straight section box, ensuring continuous and consistent fireproof and sealing performance throughout the entire protection path at bends.

[0025] It is important to note that the role of the junction box is not merely to change direction, but also to maintain the functional continuity of the sealing components. When the protective box needs to turn at a corner, the straight section of the sealing component cannot adapt to the curved path. However, the junction box is equipped with a corresponding sealing structure, such as the arc-shaped connecting plate 500, which adapts to the shape of the bend. This ensures that even at the cable bend, in the event of a fire, the internal plug 503 can accurately seal the heat dissipation hole 400 on the top junction box 200, achieving comprehensive fire protection for the entire protective network.

[0026] In this embodiment, the end cap 300 is disposed on one side of the top box 100 and the bottom box 101, and the end cap 300 can be used to close one side of the top box 100 and the bottom box 101. The end cap 300 is used to protect the beginning and end of the box, or for reserved maintenance ports or cable outlets.

[0027] Specifically, the end cap 300 serves to seal the port of the protective box, preventing dust, small animals, and other foreign objects from entering the box. In the event of a fire, it also prevents flames from spreading into the box from the port. The connection between the end cap 300 and the box body is also equipped with a sealing structure, such as the cooperation between the first side strip 700 and the first slot 702, ensuring that the entire protective system, except for the designed heat dissipation hole 400, is completely sealed. When a cable needs to be led out from the end cap 300, a cable exit hole that fits tightly with the outer diameter of the cable can be pre-drilled on the end cap 300, and then secondary sealed using materials such as fireproof putty.

[0028] In this embodiment, the heat dissipation hole 400 is formed on the top of the top box 100, and heat dissipation is achieved for the cables through the heat dissipation hole 400. The heat dissipation hole 400 is a key structure to ensure the normal operating temperature of the cables inside the protective box.

[0029] Specifically, cables continuously generate heat when transmitting high currents. If this heat cannot be dissipated in time, it will cause the temperature inside the box to rise, accelerating the aging of the cable insulation layer and even causing a fire. The heat dissipation holes 400 utilize the principle of natural rising of hot air to expel the heat accumulated inside the box through the openings at the top, forming an effective convection heat dissipation channel. The arrangement of the multiple heat dissipation holes 400 has been optimized to maximize the heat dissipation area without compromising the structural strength of the top box 100.

[0030] It is important to note that the design dimensions of the heat dissipation hole 400 are precisely matched with the plug 503 in the sealing assembly. The plug 503 is a conical plug 503, and the two are designed with a conical surface fit. This allows the plug 503 to form a tight mechanical contact with the heat dissipation hole 400 when it is reset under the force of the spring 501. It can even rely on a small interference fit to ensure a sealing effect, thereby effectively isolating the high temperature and flame generated by external fire sources.

[0031] In this embodiment, the sealing component is disposed inside the top box 100 and the bottom box 101. The sealing component seals the heat dissipation vents 400 in the event of a fire, preventing fire from entering the top box 100 and bottom box 101 and damaging the cables. The sealing component is the core mechanism that enables automatic switching between normal heat dissipation and fireproof barrier states.

[0032] Specifically, the sealing assembly includes a connecting plate 500, with multiple side plates 502 connected to its sides. Each side plate 502 has a plug 503 on its top corresponding to the position of the heat dissipation hole 400. One end of the connecting plate 500 is provided with a rope 504 for generating a pulling force on the connecting plate 500. A spring 501 for providing a restoring force to the plug 503 is provided between the top inner wall of the top box 100 and the connecting plate 500. This entire linkage mechanism constitutes a normally open, heat-triggered automatic sealing system.

[0033] It is important to note here that when the cable is operating normally, the cord 504 applies a pulling force to the connecting plate 500. The connecting plate 500 drives the side plate 502, causing the plug 503 to detach from the heat dissipation hole 400 for normal heat dissipation. At this time, the spring 501 is in a compressed state, storing elastic potential energy. In the event of a fire, the flames and high temperature burn through the cord 504, causing it to lose its pulling force on the connecting plate 500. The elastic force of the spring 501 then causes the side plate 502 to reset, allowing the plug 503 to engage inside the heat dissipation hole 400. The key to this design is that the cord 504 acts as a "sacrificial" triggering element. Compared to electronic sensors, it requires no external power supply and is less prone to false alarms. Its melting temperature can be precisely set by selecting different materials for the cord 504, such as cotton thread, nylon thread, or low-melting-point alloy wire, thus meeting the requirements for different fire warning temperatures. By sealing the heat dissipation hole 400 with the plug 503, flames are prevented from entering the interior of the protective box through the heat dissipation hole 400, thus blocking the fire source and protecting the cables inside the protective box. This allows the cables to dissipate heat during normal use and protects them in the event of a fire.

[0034] In this embodiment, the top inner wall of the top box 100 is provided with multiple guide rods, the connecting plate 500 is movably sleeved on the outside of the guide rods, and the spring 501 is sleeved on the outside of the guide rods. The guide rods provide a precise track for the movement of the connecting plate 500.

[0035] Specifically, the guide rod guides the movement of the connecting plate 500, ensuring its stable linear movement. Without the guide rod, the connecting plate 500 might tilt or jam under the tension of the spring 501 and the rope 504, preventing the plug 503 from being accurately inserted into the heat dissipation hole 400. The guide rod ensures that the connecting plate 500 and the multiple side plates 502 fixed on it always move parallel to the inner top wall of the top box 100, thus ensuring that each plug 503 is precisely aligned with its corresponding heat dissipation hole 400. Simultaneously, the guide rod also acts as a mounting base for the spring 501, preventing the spring 501 from bending laterally or falling off during compression and reset.

[0036] In this embodiment, a winding assembly for supporting the rope 504 is provided on one side of the base box 101. The winding assembly is used to adjust and maintain the initial tension of the rope 504.

[0037] In this embodiment, the winding assembly includes two fixing blocks disposed on the side of the bottom box 101. A rotating shaft 600 rotatably passes between the two fixing blocks. One end of the rope 504 is connected to the outside of the rotating shaft 600. The outside of the rotating shaft 600 is provided with a thread 601. A wing nut 602 is threaded onto the thread 601. The wing nut 602 abuts against the surface of the fixing block.

[0038] Specifically, during initial assembly, loosening the wing nut 602 disengages it from the fixing block, applying force to the rotating shaft 600, causing it to rotate and winding up the cable 504. The tension of the cable 504 is then adjusted. After adjustment, the wing nut 602 is tightened, causing it to abut against the fixing block and limiting the rotation of the shaft 600, preventing it from rotating easily. This design allows the preload of the cable 504 to be fine-tuned on-site according to the actual installation environment and the number of cables. For example, when there are many cables or the cable is heavy inside the protective box, the tension of the cable 504 can be appropriately increased to ensure stable opening of the plug 503 under normal conditions; conversely, the tension can be decreased. The wing nut 602 can be operated manually without tools, providing great convenience for on-site construction. It should be noted that the shaft 600 is also equipped with a guide groove to prevent the rope 504 from getting tangled, ensuring that the rope 504 can be neatly arranged during winding and will not cause uneven tension due to overlap.

[0039] In this embodiment, a guide wheel 505 is provided on the inner wall of the bottom box 101, and the rope 504 passes around the surface of the guide wheel 505.

[0040] Specifically, the guide wheel 505 supports the cable 504, ensuring that the cable 504 stably pulls the moving plate when the support shaft is wound up. The main function of the guide wheel 505 is to change the direction of tension in the cable 504. Since the connecting plate 500 is usually located on the inner wall of the top box 100, while the winding assembly is located on the side of the bottom box 101, the cable 504 needs to be routed vertically from a high position to a low position and then turn to a horizontal direction. The guide wheel 505 can smoothly guide the cable 504 around the corners of the bottom box 101, reducing friction and preventing the cable 504 from prematurely wearing out or breaking due to direct friction with the edges of the box, thus ensuring the long-term reliability and responsiveness of the triggering mechanism.

[0041] In this embodiment, a guide wheel 505 is provided on the inner wall of the bottom box 101, and the rope 504 passes around the surface of the guide wheel 505.

[0042] It is important to note that, to ensure thorough fire protection, the entire protective box is made of engineering plastics or metals with a flame-retardant rating of V-0. The mating edges of the top box 100 and the bottom box 101 are designed with interlocking labyrinthine sealing grooves. This structure effectively prevents high-temperature fumes from penetrating the box through the seams, even under external open flame conditions. Furthermore, internal metal components such as the spring 501 are rust-proofed to withstand the humid or slightly corrosive environment generated during cable operation, ensuring reliable triggering even after long-term use.

[0043] Example 2: Please refer to the following: Figures 1-10 The present invention also provides a technical solution: the bottom of the top box 100 and the top adapter box 200 are both provided with a second side strip, the top of the bottom box 101 and the top of the bottom adapter box 201 are both provided with a second slot 800 adapted to the second side strip, a plurality of second rivets 801 are connected to the outside of the second side strip, a second insertion hole corresponding to the second rivet 801 is provided inside the second slot 800, and a second sealing bag is provided inside the second slot 800. Specifically, when splicing the top box 100 and the bottom box 101, the second side strip on the top box 100 is inserted into the second slot 800, causing the second rivet 801 to puncture the second sealing bag, allowing the heat-insulating sealant inside the second sealing bag to leak out and fill the splicing gap. At cable bends, a top adapter box 200 and a bottom adapter box 201 are installed, and their gap filling method is consistent with the splicing filling method of the top box 100 and the bottom box 101. This "side strip + rivet + pre-made sealing bag" design is an innovative on-site sealant-free solution. Traditional methods require construction workers to carry a caulking gun to apply sealant on-site, which is not only inefficient but also difficult to control the amount of sealant, easily causing contamination or incomplete sealing. This solution pre-packages a fixed amount of sealant in a sealing bag and places it at the bottom of the slot. When the side strip is inserted, the sharp rivet automatically punctures the sealing bag, and the sealant is naturally filled into all the tiny gaps under the pressure of the side strip, achieving standardized high-quality sealing. After the glue cures, it not only provides a physical seal, but its heat insulation properties also prevent external heat from being conducted into the box through the gaps. The function of the second socket is to position the second rivet when it is inserted into the second slot.

[0044] In this embodiment, a first side strip 700 is connected to one side of the top box 100 and the top adapter box 200. A first slot 702 adapted to the first side strip 702 is opened on the other side of the top box 100, the top adapter box 200 and the end cover 300. A plurality of first rivets 701 are provided on the outside of the first side strip 700. A plurality of first insertion holes 704 adapted to the first rivets 701 are opened on the inner wall of the first slot 702. A first sealing bag 703 is provided inside the second slot 702. Specifically, multiple adjacent top boxes 100 and bottom boxes 101 are spliced ​​together to form a relatively long protective box. During splicing, the first side strip 700 is inserted into the first slot 702 of the adjacent top box 100 / bottom box 101, causing the first rivet 701 to puncture the first sealing bag 703, allowing the heat-insulating sealant inside the first sealing bag 703 to leak out and fill the splicing gap. At cable bends, a top adapter box 200 and a bottom adapter box 201 are installed, and the gap filling method is the same as that used for splicing and filling the top box 100 and bottom box 101. Here, the first side strip 700 and the first slot 702 are used for horizontal length extension connection, while the aforementioned second side strip and second slot 800 are used for vertical upper and lower box snap-fit ​​connection. The two connection structures are similar but serve different functions, together forming a modular protective box system that can be infinitely expanded in any direction. Users can freely combine the straight section box, adapter box and end cap 300 like building blocks according to the length and complexity of the actual wiring path, without any customized non-standard parts, which greatly improves the versatility and adaptability of the product. The function of the first insertion hole 704 is to position the first rivet 701 when it is inserted into the first slot 702.

[0045] Working principle: In use, the top box 100 and bottom box 101 are opened, and the cable is passed between them. The top box 100 and bottom box 101 are then installed on the wall using bolts or adhesive. During normal operation, the cable 504 applies tension to the connecting plate 500, causing the connecting plate 502 to pull the side plate 502, thus disengaging the plug 503 from the heat dissipation hole 400 for normal heat dissipation. In the event of a fire, the flames and high temperature will ignite the cable. When rope 504 burns out, it loses its tension on connecting plate 500. The spring force of spring 501 causes side plate 502 to reset, allowing plug 503 to engage inside heat dissipation hole 400. Plug 503 seals the heat dissipation hole 400, preventing flames from entering the protective box through it and thus blocking the fire source. This protects the cables inside the protective box, allowing for heat dissipation during normal cable use and protection in the event of a fire.

[0046] During initial assembly, loosening the wing nut 602 allows the wing nut to detach from the fixing block, applying force to the rotating shaft 600 to make it rotate, thereby winding up the rope 504 and adjusting the tension of the rope 504. After adjustment, tightening the wing nut 602 causes it to abut against the fixing block, limiting the rotation of the shaft 600 and preventing it from rotating easily.

[0047] When splicing the top box 100 and the bottom box 101, the second side strip on the top box 100 is inserted into the inside of the second slot 800, so that the second nail 801 punctures the second sealing bag, allowing the heat insulation sealant inside the second sealing bag to leak out and fill the gap of the splicing. Multiple adjacent top boxes 100 and bottom boxes 101 are spliced ​​together to form a longer protective box. During splicing, the first side strip 700 is inserted into the first slot 702 of the adjacent top box 100 / bottom box 101, so that the first rivet 701 punctures the first sealing bag 703, allowing the heat insulation sealant inside the first sealing bag 703 to leak out and fill the gap of the splicing.

[0048] At cable bends, a top adapter box 200 and a bottom adapter box 201 are installed, and the gap filling method is the same as the splicing filling method of the top box 100 and the bottom box 101.

[0049] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fireproof cable routing protection box, characterized in that, include: Box body; An adapter box, wherein the adapter is disposed on one side of the box body, and the adapter box enables the conversion of the cable routing position; End cap (300), the end cap (300) is disposed on one side of the top box (100) and the bottom box (101), and one side of the top box (100) and the bottom box (101) can be closed by the end cap (300); Multiple heat dissipation holes (400) are provided on the top of the top box (100) to dissipate heat from the cables. A sealing assembly is installed inside the top box (100) and the bottom box (101). The sealing assembly seals the heat dissipation holes (400) in the event of a fire, preventing the fire source from entering the top box (100) and the bottom box (101) and burning the cables.

2. The fireproof cable routing protection box according to claim 1, characterized in that, The box body includes a top box (100) and a bottom box (101), with the top box (100) spliced ​​on top of the bottom box (101).

3. The fireproof cable routing protection box according to claim 2, characterized in that, The adapter box includes a top adapter box (200) and a bottom adapter box (201), which are connected to one side of the top box (100) and the bottom box (101).

4. A fireproof cable routing protection box according to claim 2, characterized in that, The sealing assembly includes a connecting plate (500), with multiple side plates (502) connected to the side of the connecting plate (500). The top of the side plate (502) is provided with a plug (503) corresponding to the position of the heat dissipation hole (400). One end of the connecting plate (500) is provided with a rope (504) for generating a pulling force on the connecting plate (500). A spring (501) for providing a restoring force to the plug (503) is provided between the top inner wall of the top box (100) and the connecting plate (500).

5. A fireproof cable routing protection box according to claim 4, characterized in that, The top inner wall of the top box (100) is provided with multiple guide rods, the connecting plate (500) is movably sleeved on the outside of the guide rods, and the spring (501) is sleeved on the outside of the guide rods.

6. A fireproof cable routing protection box according to claim 4, characterized in that, One side of the bottom box (101) is provided with a winding assembly for supporting the rope (504).

7. A fireproof cable routing protection box according to claim 6, characterized in that, The winding assembly includes two fixing blocks disposed on the side of the bottom box (101), and a rotating shaft (600) rotatably passes between the two fixing blocks. One end of the rope (504) is connected to the outside of the rotating shaft (600). The outside of the rotating shaft (600) is provided with threaded teeth (601), and a wing nut (602) is threaded onto the threaded teeth (601). The wing nut (602) abuts against the surface of the fixing block.

8. A fireproof cable routing protection box according to claim 7, characterized in that, The inner wall of the base box (101) is provided with a guide wheel (505), and the rope (504) passes around the surface of the guide wheel (505).

9. A fireproof cable routing protection box according to claim 3, characterized in that, The bottom of the top box (100) and the top adapter box (200) are both provided with a second side strip. The top of the bottom box (101) and the top of the bottom adapter box (201) are both provided with a second slot (800) that is adapted to the second side strip. The outside of the second side strip is connected with a plurality of second rivets (801). The inside of the second slot (800) is provided with a second insertion hole corresponding to the second rivet (801). The inside of the second slot (800) is provided with a second sealing bag.

10. A fireproof cable routing protection box according to claim 9, characterized in that, The top box (100) and the top adapter box (200) are each connected to a first side strip (700) on one side. The top box (100), the top adapter box (200) and the end cover (300) are each provided with a first slot (702) that is adapted to the first side strip (700) on the other side. The first side strip (700) is provided with a plurality of first rivets (701) on the outside. The first slot (702) is provided with a plurality of first insertion holes (704) that are adapted to the first rivets (701) on the inner wall. The second slot (702) is provided with a first sealing plastic bag (703) inside.

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