A fire-resistant fire-fighting cable

Abstract

This utility model discloses a fire-resistant fire-fighting cable, including a fire-resistant and wear-resistant sheath, a connecting mounting shell movably connected to the fire-resistant and wear-resistant sheath, a support base fixedly connected to the bottom of the fire-resistant and wear-resistant sheath, and a protective component installed inside the fire-resistant and wear-resistant sheath. A first adjusting plate drives a sliding limit block to slide within the connecting mounting shell, allowing for flexible adjustment of the cable angle. This easily enables cable to bypass beams and columns, and turn around wall corners, breaking the limitations of straight-line laying and adapting to complex environments such as suspended ceilings, equipment rooms, and wall cavities. Simultaneously, the rubber mounting sleeve, support pads, and several first springs form multiple buffers; the impact force generated by dragging and collision during wiring is absorbed by the spring deformation and elastic material, preventing damage to the fire-resistant and wear-resistant sheath and the internal cable. This design balances the flexibility of angle adjustment with impact resistance, significantly reducing construction difficulty and improving the adaptability and reliability of laying in complex building environments.

Description

Technical Field

[0001] This utility model relates to the field of fire protection cable technology, specifically a fire-resistant fire protection cable. Background Technology

[0002] Fire protection cables are special cables designed specifically for building fire protection systems and emergency power supply scenarios. Their core function is to ensure a continuous and safe power supply to fire protection equipment and emergency systems in extreme environments such as fires, through special materials and structural design. They are the "electrical lifeline" for building fire emergency rescue and personnel evacuation. Fire protection cables are a type of fire-resistant cable specifically designed for fire protection systems and emergency power supply scenarios. Their core function is to meet the dual requirements of fire safety and emergency power supply reliability in extreme environments such as fires, through special materials and structural design. This ensures the continuous operation of fire protection equipment during a fire, buying crucial time for personnel evacuation and firefighting rescue, and is the "lifeline" for building electrical safety.

[0003] In existing technologies, the internal wiring environment of buildings is inherently complex. Whether it's the ceiling mezzanine of a commercial complex, the equipment room of an office building, or the wall cavities of a residential community, cables must bypass beams and columns, avoid pipes, and bend close to corners. Fire-resistant cables, which cannot be bent using connecting devices, are completely unsuitable for such complex scenarios and must strictly adhere to the "straight-line laying" principle. This imposes significant limitations on their practical construction. For example, during daily operation, the outer fire-resistant material hinders heat dissipation, and heat generated by the conductor easily accumulates. In the event of a fire, the high ambient temperature combined with the cable's own heat generation can easily exceed the fire resistance limit of the insulation layer, even if the outer fire-resistant material is fire-resistant. After a fire, the cable's heat is difficult to dissipate, and the residual high temperature can cause the sheath and insulation layer to stick and carbonize. Dragging and friction in complex environments can easily damage the outer sheath, insulation layer, and fire-resistant layer. During use, their resistance to environmental and mechanical interference is weak. After the outer layer is damaged, moisture and corrosive gases can easily penetrate, and the fire-resistant function can easily fail. The high temperature of a fire softens the outer layer, and if there is already scratch damage, the flames will quickly penetrate the outer layer and ignite the interior. Utility Model Content

[0004] The purpose of this utility model is to provide a fire-resistant fire protection cable to solve the problems mentioned in the background art, such as fire-resistant fire protection cables that are inconvenient to bend, which make them unsuitable for complex terrain; fire-resistant fire protection cables that cannot dissipate heat, which cause heat accumulation; and fire-resistant fire protection cables with poor protective effects, which increase the risk of disasters.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fire-resistant fire-fighting cable, comprising a fire-resistant and wear-resistant sleeve, a connecting mounting shell movably connected to the fire-resistant and wear-resistant sleeve, a support base fixedly connected to the bottom of the fire-resistant and wear-resistant sleeve, a protective component installed inside the fire-resistant and wear-resistant sleeve, a heat dissipation component installed inside the fire-resistant and wear-resistant sleeve, a cable body installed inside the heat dissipation component, a connecting component installed inside the connecting mounting shell, a support pad fixedly connected inside the connecting mounting shell, a rubber mounting sleeve installed between the support pad and the fire-resistant and wear-resistant sleeve, a first spring fixedly connected between the rubber mounting sleeve and the connecting mounting shell, a sliding limit block slidably connected inside the connecting mounting shell, a first adjusting plate fixedly connected to the sliding limit block, a fixed mounting column fixedly connected inside the first adjusting plate, a second adjusting plate rotatably connected to the fixed mounting column, the second adjusting plate slidably connected inside the connecting mounting shell, the connecting component driving the connecting mounting shell to connect with the connecting mounting shell, the second adjusting plate rotating on the fixed mounting column, and the first adjusting plate pulling the sliding limit block to slide inside the connecting mounting shell.

[0006] In a preferred embodiment of this technical solution, the connecting mounting shell has a groove at the corresponding position of the sliding limit block, and the sliding limit block slides inside the groove.

[0007] In the preferred embodiment of this technical solution, two sliding limit blocks are provided, and the two sliding limit blocks are symmetrically slidably connected inside the connecting and mounting shell.

[0008] In the preferred embodiment of this technical solution, a plurality of first springs are provided, and the plurality of first springs are symmetrically and uniformly fixedly connected between the connecting mounting shell and the rubber mounting sleeve.

[0009] Based on the preferred embodiment of this technical solution, the connecting component includes a mounting connecting post fixedly connected inside the connecting mounting housing, an adjusting bracket rotatably connected to the mounting connecting post, a plug-in plate fixedly connected to one end of the adjusting bracket and a connecting mounting block fixedly connected to the other end, a fixed mounting block fixedly connected inside the connecting mounting housing, a second spring fixedly connected between the connecting mounting block and the fixed mounting block, a push button fixedly connected to one side of the connecting mounting block, and a slot opened on one side of the connecting mounting housing.

[0010] In the preferred embodiment of this technical solution, there are two adjustment brackets, and the two adjustment brackets are symmetrically and rotatably connected to the mounting connection column.

[0011] Based on the preferred embodiment of this technical solution, the protective component includes an outer protective layer installed inside the fireproof and wear-resistant sleeve and a protective steel wire installed inside the outer protective layer.

[0012] Based on the preferred embodiment of this technical solution, the heat dissipation component includes a heat dissipation layer installed inside the protective steel wire, a heat-conducting layer installed inside the heat dissipation layer, an elastic bead installed inside the heat-conducting layer, a high-temperature resistant layer installed inside the elastic bead, a fixed bracket installed inside the high-temperature resistant layer, a cable body installed inside the fixed bracket, and ceramic fibers installed on the fixed bracket.

[0013] In a preferred embodiment of this technical solution, a plurality of airflow grooves are formed inside the heat-conducting layer, and these grooves are evenly distributed within the heat-conducting layer. Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. By rotating the second adjusting plate around the fixed mounting column, the first adjusting plate drives the sliding limit block to slide within the connecting mounting shell, allowing for flexible adjustment of the cable angle. This easily enables cabling around beams and columns, and turning along wall corners, breaking the limitations of straight-line laying and adapting to complex environments such as suspended ceilings, equipment rooms, and wall cavities. Simultaneously, the rubber mounting sleeve, supporting pads, and several first springs form multiple buffers. The impact force generated by dragging and collisions during cabling is absorbed by the spring deformation and elastic material, preventing damage to the fire-resistant and wear-resistant sleeve and internal cables. This design balances angle adjustment flexibility with impact resistance, significantly reducing construction difficulty and improving the adaptability and reliability of cabling in complex building environments.

[0015] 2. The double-layer protection formed by the outer protective layer and the fire-resistant and wear-resistant sleeve effectively blocks the intrusion of dust, moisture, and corrosive gases from the building environment, preventing these media from corroding the internal heat dissipation components and the cable itself, slowing down the aging of the insulation layer, and extending the cable's service life. Simultaneously, the high-strength steel wire significantly enhances the cable's tensile and tear resistance. In complex wiring environments, it can directly withstand external impacts such as dragging, squeezing, and scratching, preventing internal structural breakage or deformation due to mechanical damage. This ensures the cable maintains structural integrity during installation and long-term use, providing a solid foundation for the stable performance of core functions such as fire resistance and heat dissipation.

[0016] 3. The heat-conducting layer rapidly absorbs the heat generated by the cable body during operation, and the evenly spaced airflow channels inside accelerate heat circulation. The heat dissipation layer then efficiently dissipates the heat to the outside, preventing heat accumulation that could accelerate aging of the cable insulation and ensuring long-term operational stability. Elastic beads buffer the impact of external vibrations on the internal structure, reducing heat conduction obstruction caused by shaking. The high-temperature resistant layer and ceramic fiber work synergistically to maintain structural stability even in high-temperature environments, blocking external high temperatures from damaging the cable body without affecting normal heat dissipation. The fixed bracket ensures the cable body is stable, preventing uneven heat dissipation due to displacement. Overall, this design provides multiple guarantees of efficient heat dissipation, impact resistance, and high-temperature resistance, meeting the needs of long-term operation and emergency high-temperature scenarios for fire protection cables. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of one embodiment of a fire-resistant fire-fighting cable according to the present invention;

[0018] Figure 2 This is a schematic diagram of the internal structure of the connecting and mounting shell of this utility model;

[0019] Figure 3 This is a schematic diagram of the connection and mounting shell structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the connecting component structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the internal structure of the fireproof and wear-resistant sleeve of this utility model;

[0022] Figure 6 This is a schematic diagram of the heat dissipation component structure of this utility model.

[0023] In the diagram: 1. Fireproof and wear-resistant sleeve; 2. Connecting mounting shell; 3. Support base; 4. Cable body; 801. Rubber mounting sleeve; 802. Support pad; 803. First spring; 804. Sliding limit block; 805. First adjusting plate; 807. Fixed mounting post; 808. Second adjusting plate; 809. Mounting connecting post; 810. Adjusting bracket; 811. Insertion plate; 812. Connecting mounting block; 813. Fixed mounting block; 814. Second spring; 815. Press button; 816. Slot; 901. Outer protective layer; 902. Protective steel wire; 903. Heat dissipation layer; 904. Heat-conducting layer; 905. Elastic bead; 906. High-temperature resistant layer; 907. Fixed bracket; 908. Ceramic fiber. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-6This utility model provides an embodiment including a fireproof and wear-resistant sleeve 1, a connecting mounting shell 2 movably connected to the fireproof and wear-resistant sleeve 1, a support base 3 fixedly connected to the bottom of the fireproof and wear-resistant sleeve 1, a protective component installed inside the fireproof and wear-resistant sleeve 1, a heat dissipation component installed inside the fireproof and wear-resistant sleeve 1, a cable body 4 installed inside the heat dissipation component, a connecting component installed inside the connecting mounting shell 2, a support soft pad 802 fixedly connected inside the connecting mounting shell 2, a rubber mounting sleeve 801 installed between the support soft pad 802 and the fireproof and wear-resistant sleeve 1, and a component fixedly connected between the rubber mounting sleeve 801 and the connecting mounting shell 2. The first spring 803, the sliding limit block 804 slidably connected inside the connecting mounting shell 2, the first adjusting plate 805 fixedly connected to the sliding limit block 804, the fixed mounting column 807 fixedly connected inside the first adjusting plate 805, the second adjusting plate 808 rotatably connected to the fixed mounting column 807, the second adjusting plate 808 slidably connected inside the connecting mounting shell 2, the connecting assembly drives the connecting mounting shell 2 to connect with the connecting mounting shell 2, the second adjusting plate 808 rotates on the fixed mounting column 807, and the first adjusting plate 805 pulls the sliding limit block 804 to slide inside the connecting mounting shell 2.

[0026] Please see Figure 2-3 A further solution based on this embodiment is as follows: a groove is provided at the corresponding position of the sliding limit block 804 in the connecting mounting shell 2, and the sliding limit block 804 slides inside the groove. By providing a groove at the corresponding position of the sliding limit block 804 in the connecting mounting shell 2, a clear and stable sliding trajectory is provided for the sliding limit block 804, avoiding the sliding limit block 804 from shifting or getting stuck during the movement of the first adjusting plate 805, ensuring that it can stably cooperate with the first adjusting plate 805 to achieve position adjustment, thereby ensuring the smooth linkage of the internal structure of the connecting mounting shell 2 and improving the operational reliability during cable installation and adjustment.

[0027] Please see Figure 2-3 A further solution based on this embodiment is as follows: two sliding limit blocks 804 are provided, and the two sliding limit blocks 804 are symmetrically slidably connected inside the connecting mounting shell 2. By symmetrically providing two sliding limit blocks 804 inside the connecting mounting shell 2, they can be adjusted synchronously from both sides in conjunction with the first adjusting plate 805, so that the adjusting force is evenly applied to the internal structure of the connecting mounting shell 2, avoiding the problem of uneven force caused by unilateral adjustment, effectively enhancing the stability of the internal structure of the connecting mounting shell 2, preventing the deformation of components such as the first adjusting plate 805 and the second adjusting plate 808 due to excessive force on one side, and extending the service life of the overall structure.

[0028] Please see Figure 2-3A further solution based on this embodiment is as follows: a plurality of first springs 803 are provided, and the plurality of first springs 803 are symmetrically and evenly fixedly connected between the connecting mounting shell 2 and the rubber mounting sleeve 801. By symmetrically and evenly arranging a plurality of first springs 803 between the connecting mounting shell 2 and the rubber mounting sleeve 801, the force generated by external impact or vibration can be evenly distributed to each first spring 803. Together with the rubber mounting sleeve 801 and the supporting soft pad 802, multiple buffer barriers are formed, which greatly improves the buffer protection effect on the fireproof and wear-resistant sleeve 1 and the internal cable body 4, effectively weakens the impact force generated by installation dragging, external collision, etc., and avoids damage to the insulation layer or structural deformation of the cable body 4.

[0029] Please see Figure 4 A further solution based on this embodiment is as follows: the connecting assembly includes a mounting connecting post 809 fixedly connected inside the connecting mounting housing 2, an adjusting bracket 810 rotatably connected to the mounting connecting post 809, a plug-in plate 811 fixedly connected to one end of the adjusting bracket 810 and a connecting mounting block 812 fixedly connected to the other end, a fixed mounting block 813 fixedly connected inside the connecting mounting housing 2, a second spring 814 fixedly connected between the connecting mounting block 812 and the fixed mounting block 813, a push button 815 fixedly connected to one side of the connecting mounting block 812, and a plug-in plate 815 opened on one side of the connecting mounting housing 2. The slot 816, through the connection assembly consisting of mounting connecting post 809, adjusting bracket 810, etc., allows for quick connection when two cable segments need to be connected. The adjustment bracket 810 can rotate around the mounting connecting post 809, and the second spring 814 provides elastic support for the connecting mounting block 812, pushing the plug-in plate 811 into the slot 816 of another connecting mounting shell 2. When disassembling, pressing the button 815 will cause the connecting mounting block 812 to compress the second spring 814, causing the plug-in plate 811 to disengage from the slot 816, greatly improving the convenience of cable connection and disassembly and reducing construction difficulty.

[0030] Please see Figure 4 A further solution based on this embodiment is as follows: the two adjusting brackets 810 are symmetrically and rotatably connected to the mounting connecting column 809. By symmetrically and rotatably connecting the two adjusting brackets 810 to the mounting connecting column 809, the plug-in plates 811 on both sides can move synchronously to ensure the precise fit between the plug-in plates 811 and the slots 816 during docking. This avoids connection offset or loosening caused by inconsistent movement of the adjusting brackets 810 on one side. At the same time, the symmetrical structure can distribute the force during connection, enhancing the load-bearing capacity and connection stability of the connection components.

[0031] Please see Figure 5-6A further solution based on this embodiment is as follows: the protective component includes an outer protective layer 901 installed inside the fireproof and wear-resistant sleeve 1 and a protective steel wire 902 installed inside the outer protective layer 901. By setting the protective component composed of the outer protective layer 901 and the protective steel wire 902 inside the fireproof and wear-resistant sleeve 1, the outer protective layer 901 can further enhance the protection of the internal structure and block external dust, moisture and other corrosion; the protective steel wire 902 can greatly improve the tensile and tear resistance of the cable, effectively resist mechanical pulling or scratching that may occur during installation and use, avoid damage to the internal heat dissipation components and the cable body 4, and ensure the structural integrity of the cable.

[0032] Please see Figure 5-6 A further solution based on this embodiment is as follows: The heat dissipation assembly includes a heat dissipation layer 903 installed inside the protective steel wire 902, a heat-conducting layer 904 installed inside the heat dissipation layer 903, an elastic bead 905 installed inside the heat-conducting layer 904, a high-temperature resistant layer 906 installed inside the elastic bead 905, a fixing bracket 907 installed inside the high-temperature resistant layer 906, a cable body 4 installed inside the fixing bracket 907, and ceramic fibers 908 installed on the fixing bracket 907. By setting up a heat dissipation assembly composed of the heat dissipation layer 903, the heat-conducting layer 904, etc., the heat-conducting layer 904 can quickly conduct the heat generated by the cable body 4 during operation to the heat dissipation layer 903 for dissipation, avoiding heat accumulation that affects cable performance; the elastic bead 905 can provide buffer protection, the high-temperature resistant layer 906 can enhance the heat resistance in fire scenarios, and the fixing bracket 907, together with the ceramic fibers 908, can stably fix the cable body 4. At the same time, the ceramic fibers 908 have both heat insulation and fireproof functions, comprehensively improving the heat dissipation and high-temperature protection capabilities of the cable.

[0033] Please see Figure 5-6 A further solution based on this embodiment is as follows: a plurality of airflow grooves are opened inside the heat-conducting layer 904, and the plurality of airflow grooves are evenly opened inside the heat-conducting layer 904. By evenly opening a plurality of airflow grooves inside the heat-conducting layer 904, the contact area between the heat-conducting layer 904 and the air can be increased, the heat exchange efficiency can be accelerated, and the heat generated by the cable body 4 can be conducted to the heat dissipation layer 903 more quickly through the airflow grooves. At the same time, the airflow grooves can promote air circulation, further enhance the heat dissipation effect, avoid the cable insulation layer from aging faster due to long-term high-temperature operation, and extend the service life of the cable.

[0034] The first spring 803 can also be replaced by a wave spring from the existing technology, or by a polyurethane elastic column. The advantages are: wave springs can provide a larger elastic deformation in a smaller axial space, adapting to the compact internal structure design of the connection and mounting shell 2; polyurethane elastic columns have no risk of metal corrosion, a longer service life, and a more stable buffering and damping effect, effectively absorbing high-frequency vibrations and reducing vibration damage to the cable body 4. The fire-resistant and wear-resistant sleeve 1 can also be replaced by a flame-retardant polyolefin sheath from the existing technology, or by a stainless steel armored flame-retardant sheath. The advantages are: flame-retardant polyolefin sheaths are lighter and more flexible, facilitating bending and laying in complex environments, and have excellent chemical corrosion resistance; stainless steel armored flame-retardant sheaths have stronger impact and puncture resistance, suitable for scenarios prone to being crushed by heavy objects or scratched by sharp objects, while not affecting fire resistance.

[0035] Working principle: The outer fireproof and wear-resistant sleeve 1 resists external scratches and initial attack from open flames. The outer protective layer 901 of the internal protective component blocks moisture and dust corrosion, and the protective steel wire 902 enhances tensile and tear resistance. This double protection ensures the structural integrity of the cable body 4. The heat generated by the cable during operation is absorbed by the heat-conducting layer 904 and accelerated by the evenly distributed airflow grooves inside to the heat dissipation layer 903 for dissipation, avoiding high-temperature aging. During installation and docking, pressing the button 815 of the connecting component causes the connecting mounting block 812 to compress the second spring 814, causing the adjusting bracket 810 to rotate around the mounting connecting post 809, and the plug-in plate 811 to retract. After docking, releasing the button 815 causes the second spring 814 to return to its original position and push the plug-in plate 811 into the slot 816 of the other connecting mounting shell 2, achieving quick fixation. During adjustment, the second adjusting plate 808 rotates around the fixed mounting post 807, causing the first adjusting plate 805 to pull the sliding limit block 804 along the sliding groove of the connecting mounting shell 2 to adapt to the installation angle. Upon impact or vibration, several first springs 803 inside the connecting mounting shell 2 deform symmetrically under force, working in conjunction with the rubber mounting sleeve 801 and the supporting soft pad 802 to buffer the impact and prevent damage to the internal structure. In the event of a fire, the fireproof and wear-resistant sleeve 1 and the high-temperature resistant layer 906 block high temperatures, the ceramic fiber 908 enhances the heat insulation effect, and the fixed bracket 907 maintains the shape of the cable body 4, ensuring continuous emergency power supply.

[0036] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fire resistant fire-fighting cable comprising a fire resistant wear sleeve (1), characterized in that: The application further comprises a connecting and mounting shell (2) movably connected to the fireproof wear-resistant sleeve (1), a supporting base (3) fixedly connected to the bottom of the fireproof wear-resistant sleeve (1), a protection assembly mounted in the fireproof wear-resistant sleeve (1), a heat dissipation assembly mounted in the fireproof wear-resistant sleeve (1), a cable body (4) mounted in the heat dissipation assembly, a connecting assembly mounted in the connecting and mounting shell (2), a supporting cushion (802) fixedly connected in the connecting and mounting shell (2), a rubber mounting sleeve (801) mounted between the supporting cushion (802) and the fireproof wear-resistant sleeve (1), a first spring (803) fixedly connected between the rubber mounting sleeve (801) and the connecting and mounting shell (2), a sliding limiting block (804) slidably connected in the connecting and mounting shell (2), a first adjusting plate (805) fixedly connected to the sliding limiting block (804), a fixed mounting column (807) fixedly connected in the first adjusting plate (805), a second adjusting plate (808) rotatably connected to the fixed mounting column (807), the second adjusting plate (808) being slidably connected in the connecting and mounting shell (2), the connecting assembly driving the connecting and mounting shell (2) to be connected to the connecting and mounting shell (2), the second adjusting plate (808) being rotated on the fixed mounting column (807), and the first adjusting plate (805) pulling the sliding limiting block (804) to slide in the connecting and mounting shell (2).

2. A fire resistant fire-fighting cable according to claim 1, characterised in that: The connecting and mounting shell (2) is provided with a sliding groove at a position corresponding to the sliding limiting block (804), and the sliding limiting block (804) slides in the sliding groove.

3. A fire resistant fire-fighting cable according to claim 1, characterised in that: The sliding limiting block (804) is provided with two sliding limiting blocks (804) which are symmetrically and slidably connected in the connecting and mounting shell (2).

4. A fire resistant fire-fighting cable according to claim 1, characterised in that: The first spring (803) is provided with a plurality of first springs (803) which are fixedly connected between the connecting and mounting shell (2) and the rubber mounting sleeve (801) in a symmetrical and uniform manner.

5. A fire resistant fire-fighting cable according to claim 1, characterised in that: The connecting assembly comprises a mounting connecting column (809) fixedly connected in the connecting and mounting shell (2), an adjusting support (810) cross-rotatably connected to the mounting connecting column (809), an insertion clamping plate (811) fixedly connected to one end of the adjusting support (810) and a connecting mounting block (812) fixedly connected to the other end of the adjusting support (810), a fixed mounting block (813) fixedly connected in the connecting and mounting shell (2), a second spring (814) fixedly connected between the connecting mounting block (812) and the fixed mounting block (813), a pressing button (815) fixedly connected to one side of the connecting mounting block (812), and a slot (816) formed in one side of the connecting and mounting shell (2).

6. A fire resistant electrical cable according to claim 5, characterised in that: The adjusting support (810) is provided with two adjusting supports (810) which are cross-symmetrically and rotatably connected to the mounting connecting column (809).

7. A fire resistant electrical cable according to claim 5, wherein: The protection assembly comprises an outer protective layer (901) mounted in the fireproof wear-resistant sleeve (1) and a protective steel wire (902) mounted on the inner side of the outer protective layer (901).

8. A fire resistant fire-fighting cable according to claim 1, characterised in that: The heat dissipation assembly comprises a heat dissipation layer (903) mounted in the inner side of the protective steel wire (902), a heat conduction layer (904) mounted in the inner side of the heat dissipation layer (903), an elastic bead (905) mounted in the inner side of the heat conduction layer (904), a high-temperature-resistant layer (906) mounted in the inner side of the elastic bead (905), a fixed support (907) mounted in the inner side of the high-temperature-resistant layer (906), and a cable body (4) mounted in the inner side of the fixed support (907).

9. A fire resistant fire-fighting cable according to claim 8, characterised in that: The heat conduction layer (904) is internally provided with a plurality of air flow grooves which are uniformly arranged in the inner side of the heat conduction layer (904).

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