A flame-retardant impact-resistant communication and power cable protection pipe

Abstract

This invention relates to the field of cable protection conduit technology, specifically a flame-retardant and impact-resistant protective conduit for communication and power cables. The conduit includes a flame-retardant structure comprising an outer tube layer, the inner wall of which is fitted with a heat-resistant outer tube. An impact-resistant protective structure is provided on the inner wall of the inner mounting layer, including a cable mounting bracket outer tube located on the inner wall of the inner mounting layer. One end of the outer tube layer has a conduit interface structure. This flame-retardant and impact-resistant protective conduit for communication and power cables exhibits significant flame-retardant effects, effectively preventing flame spread, avoiding pipe combustion and dripping, and effectively absorbing impacts from external collisions and compression. It can withstand various external impacts such as outdoor construction, vehicle collisions, and heavy object compression. Furthermore, it improves splicing and connection efficiency, is suitable for large-scale cable laying projects, and can significantly shorten the construction cycle.

Description

Technical Field

[0001] This invention relates to the field of cable protection tubing technology, specifically a flame-retardant and impact-resistant communication and power cable protection tubing. Background Technology

[0002] Cable protection conduit refers to specialized conduit materials used for laying and protecting cables such as power cables and communication optical cables. Its main function is to prevent cables from being affected by external environmental factors such as mechanical damage, chemical corrosion, and electromagnetic interference, while also facilitating later maintenance and replacement.

[0003] In the prior art, patent document CN106146936A discloses a protective pipe for underground laying of communication cables. This protective pipe for underground laying of communication cables is composed of the following components: cis-butadiene rubber, ketone-aldehyde resin, ethylene propylene rubber, carbomer resin, coal tar, hydrogenated castor oil, dimethyl carbonate, tall oil fatty acid, vancomycin, vanillin, benzalkonium chloride, ammonium acetate, nylon fiber, zirconium boride powder, bentonite, aluminum metasilicate, barium metasulfate, palygorskite powder, lead powder, potassium hydroxide powder, trichloroethyl phosphate, polybenzimidazole imide, amidourea phosphate, trioctyl phosphate, cyclohexanone peroxide, dextrin, succinimide, butyl epoxy stearate, xanthan gum, and pentaerythritol acrylate. This invention involves mixing various ingredients to form a novel composite toughening and strengthening system. This system exhibits good toughness, stiffness, and elastic modulus performance, significantly improving the product's anti-aging and performance characteristics. It also demonstrates good corrosion resistance, antibacterial and flame retardant effects, excellent insulation properties, and overall superior performance, resulting in a superior overall product. However, the aforementioned technical solutions have insufficient flame retardant properties, making them prone to combustion and dripping in the event of a fire. They are unable to effectively prevent the spread of flames, which can easily lead to cable burnout, communication interruptions, power failures, or even safety accidents. Furthermore, their impact resistance is weak, and the conduit is easily damaged or deformed when subjected to external impacts or compression, thereby damaging the internal cables. This risk of damage is extremely high, especially in complex environments such as outdoors or during construction. Cable installation is also unstable, lacking effective internal fixing and buffering structures. Cables are prone to shaking and shifting inside the conduit, and long-term friction can easily lead to damage to the cable sheath, causing short circuits. Based on these issues, this invention provides a flame-retardant and impact-resistant protective conduit for communication and power cables to solve the problems mentioned in the background art. Summary of the Invention

[0004] This invention addresses the technical problems existing in the prior art by providing a flame-retardant and impact-resistant protective conduit for communication and power cables. Its flame-retardant effect is significant, effectively blocking the spread of flames and preventing the conduit from burning or dripping. It can also effectively absorb the impact force generated by external collisions and compression, and can withstand various external impacts such as outdoor construction, vehicle collisions, and heavy object compression. Furthermore, it can improve splicing and external connection efficiency, making it suitable for large-scale cable laying projects and significantly shortening the construction cycle.

[0005] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: a flame-retardant and impact-resistant protective pipe for communication and power cables, comprising a flame-retardant pipe structure, the flame-retardant pipe structure comprising an outer pipe layer, the outer pipe layer having a heat-resistant outer pipe installed on the inner wall of the outer pipe layer, a protective layer installed on the inner wall of the heat-resistant outer pipe, an internal honeycomb-filled air layer laid on the inner wall of the protective layer, an air vent penetrating one side of the outer wall of the outer pipe layer, the heat-resistant outer pipe and the protective layer sequentially penetrating the end of the air vent away from the outer pipe layer, and one end of the outer wall of the air vent located inside the internal honeycomb-filled air layer; The inner wall of the internal honeycomb filling air layer is fixedly connected to a flame-retardant layer installation tube, the outer wall of the flame-retardant layer installation tube is covered with an internal flame-retardant tube layer, the inner wall of the flame-retardant layer installation tube is fixedly connected to a plurality of internal fiber skeletons, and the end of the internal fiber skeleton away from the flame-retardant layer installation tube is fixedly connected to an installation inner layer. The inner wall of the mounting inner layer is provided with an impact-resistant protection structure, which includes an outer tube of a cable mounting frame located on the inner wall of the mounting inner layer; One end of the outer tube layer is provided with a pipe interface structure.

[0006] The beneficial effects of adopting the above-mentioned further scheme are as follows: the outer tube layer is the outermost structure of the pipe, made of high-strength, corrosion-resistant, and flame-retardant material, serving as an outer protective barrier to resist external impacts, compression, and corrosion, while also possessing basic flame-retardant properties; the heat-resistant outer tube is installed on the inner wall of the outer tube layer, made of high-temperature resistant and flame-retardant material, enhancing the pipe's high-temperature resistance and preventing external high temperatures from being transferred to the interior, thus avoiding damage to internal cables due to high temperatures; the protective layer is installed on the inner wall of the heat-resistant outer tube, made of flexible protective material, buffering minor external impacts while also providing dust and water protection, protecting the internal structure from impurities and moisture erosion; the internal honeycomb-filled air layer is laid on the inner wall of the protective layer, forming a honeycomb-shaped inflatable structure, utilizing the buffering properties of gas to assist in absorbing external impacts, while also providing heat insulation and flame retardancy, reducing heat transfer; the air inlet penetrates one side of the outer wall of the outer tube layer, with the end furthest from the outer tube layer sequentially penetrating the heat-resistant outer tube and the protective layer, and the end located in the internal honeycomb-filled air layer. The interior of the structure is inflated and deflated by an internal honeycomb-filled gas layer. Inert gas can be used for flame retardancy, ensuring stable buffering and insulation performance while allowing moisture to escape, preventing internal dampness. The flame-retardant layer installation pipe is fixedly connected to the inner wall of the internal honeycomb-filled gas layer, securing the internal flame-retardant pipe layer and internal fiber skeleton, providing installation support for the internal structure. The internal flame-retardant pipe layer, laid on the outer wall of the flame-retardant layer installation pipe, is made of highly efficient flame-retardant material, enhancing the pipe's flame-retardant performance. In the event of a fire, it can quickly form a flame-retardant barrier, blocking the spread of flames and protecting internal cables. Multiple internal fiber skeletons, made of high-strength fiber material, are fixedly connected to the inner wall of the flame-retardant layer installation pipe, enhancing the pipe's structural rigidity, preventing deformation, and providing fixed support for the inner layer installation. The inner layer installation is fixedly connected to the end of the internal fiber skeleton furthest from the flame-retardant layer installation pipe, forming a rigid inner layer structure. It securely installs the impact-resistant protective structure, ensuring stable installation of the impact-resistant structure.

[0007] The beneficial effects of this invention are: 1) This invention adopts a multi-layer flame-retardant design, with an internal flame-retardant tube layer, a flame-retardant filling layer, and an outer tube layer working together. The flame-retardant filling layer is made of asbestos fiber, which is resistant to high temperatures and has a significant flame-retardant effect, effectively blocking the spread of flames and preventing the tube from burning or dripping. The internal honeycomb filling gas layer plays a role in heat insulation, reducing heat transfer, and can be filled with inert gas to prevent the cable from exploding and protect the internal cables from high-temperature damage. In the event of a fire, each flame-retardant component quickly takes effect, delaying the spread of fire, buying time for cable repair and personnel evacuation, and significantly reducing losses such as communication interruptions and power failures caused by fires. It is suitable for industrial plants, rail transit, and other scenarios with high fire risk.

[0008] 2) This invention features a multi-layered impact-resistant buffer structure. The spring rod and buffer spring components form a double elastic buffer, which can effectively absorb the impact force generated by external collisions and compression. The linkage design of the push block, connecting section, and push plate realizes the dispersion and transmission of impact force, avoiding excessive local stress that could lead to pipe damage. The internal fiber skeleton and support skeleton enhance the overall rigidity of the pipe and prevent pipe deformation. The internal honeycomb-filled air layer assists in buffering, further weakening the impact. The synergistic effect of the multiple impact-resistant structures can withstand various external impacts such as outdoor construction, vehicle collisions, and heavy object compression, ensuring that the pipe and internal cables remain intact and suitable for complex environments such as outdoor and municipal applications.

[0009] 3) This invention provides a stable installation space for the cable structure through the inner tube and support frame of the cable mounting bracket, ensuring orderly cable arrangement; the buffering effect of the spring rod and buffer spring prevents the cable from shaking or shifting inside the tube, reducing frictional loss of the cable sheath; the fixed bracket and movable bracket ensure a firm connection of the external cable, preventing transmission interruption due to loosening of the external connection; the tube interface structure adopts a threaded interface connection, and the sliding sleeve can flexibly adjust the connection length, making the splicing process simple and convenient without the need for complex tools; the anti-slip block and limiting sleeve enhance the firmness of the connection, preventing the interface from loosening or falling off; the external plate, fixed bracket, and movable bracket facilitate the connection of the tube to external equipment and cables, improving splicing and external connection efficiency, adapting to large-scale cable laying projects, and significantly shortening the construction cycle.

[0010] Based on the above technical solution, the present invention can be further improved as follows.

[0011] Furthermore, the protective cavity formed by the internal fiber skeleton between the flame-retardant layer mounting tube and the mounting inner layer is filled with a flame-retardant filling layer, which is made of asbestos fiber material.

[0012] The beneficial effects of adopting the above-mentioned further solution are that the protective cavity is a cavity structure formed between the flame-retardant layer installation pipe and the installation inner layer through an internal fiber skeleton, which accommodates the flame-retardant filling layer and enhances the flame-retardant and buffering performance; the flame-retardant filling layer is filled in the protective cavity and is made of asbestos fiber material. By utilizing the high temperature resistance and flame-retardant properties of asbestos fiber, the flame-retardant performance of the pipe is further improved, while playing an auxiliary buffering role to absorb minor external vibrations and impacts.

[0013] Furthermore, the outer wall of the cable mounting bracket outer tube is fixedly connected with multiple fixed terminals at equal intervals. One end of each fixed terminal away from the outer tube of the cable mounting bracket is fixedly connected with a spring rod, and the other end of each spring rod is fixedly connected to the inner wall of the inner layer of the mounting bracket through a fixed terminal.

[0014] Furthermore, the outer wall of the cable mounting bracket outer tube and the inner wall of the mounting inner layer are each fixedly connected to a push block on one side of a plurality of fixed terminals. Each side of a plurality of push blocks is fixedly connected to a fixed section. Each end of a plurality of fixed sections away from the push blocks is rotatably connected to a connecting section. Each end of a plurality of connecting sections away from the fixed sections is fixedly connected to a push plate. The plurality of push plates are paired up and correspond to each other.

[0015] Furthermore, multiple push plates on one side are fixed to one side of the fixed block. A limiting rod is fixedly connected to the center of the fixed block. A buffer spring is sleeved on the outer wall of the limiting rod. One end of the multiple buffer springs is fixedly connected to one side of the outer wall of the fixed block, and a limiting slider is fixedly connected to the end of the multiple buffer springs away from the fixed block. The limiting slider is slidably connected to the outer wall of the limiting rod.

[0016] Furthermore, a support frame is fixedly connected to the inner wall of the outer tube of the cable mounting frame, and the inner walls of multiple support frames are fixedly connected to the inner tube of the cable mounting frame.

[0017] Furthermore, the inner wall of the inner tube of the cable mounting frame is provided with a cable structure, the cable structure including multiple cable sheaths installed on the inner wall of the inner tube of the cable mounting frame, the inner walls of the multiple cable sheaths are covered with wrapping layers, and the inner walls of the multiple wrapping layers are covered with copper cores.

[0018] The beneficial effects of adopting the above-mentioned further solution are as follows: the outer tube of the cable mounting frame is located on the inner wall of the inner layer of the mounting frame, and is a rigid tubular structure, which is used to install and fix the support frame, the inner tube of the cable mounting frame, and various buffer components; multiple fixed terminals are fixedly connected to the outer wall of the outer tube of the cable mounting frame at equal intervals, forming a fixed connection structure, and connecting spring rods; one end of the spring rod is fixedly connected to the end of the fixed terminal away from the outer tube of the cable mounting frame, and the other end is fixedly connected to the inner wall of the inner layer of the mounting frame through the fixed terminal, forming an elastic buffer structure that absorbs external impacts, buffers the vibration between the outer tube of the cable mounting frame and the inner layer of the mounting frame, and prevents the impact from being transmitted to the internal cables; the pushing block is fixedly connected to the outer wall of the outer tube of the cable mounting frame and the inner layer of the mounting frame. The inner wall of the inner layer, located on one side of multiple fixed terminals, serves as a push-linkage structure to transmit impact force. Multiple fixed sections are fixedly connected to one side of the push block, forming a rotatable connection base for mounting connecting sections. A connecting section is rotatably connected to the end of the fixed section furthest from the push block, acting as a linkage rod connecting the push block and the push plate to transmit buffering force. Multiple push plates are fixedly connected to the end of the connecting section furthest from the fixed section, with multiple push plates arranged in pairs corresponding to each other, transmitting the impact force to the buffer spring component for multi-stage buffering. Multiple push plates are fixedly connected to one side of the fixed block, forming a fixed base for mounting limit rods and buffer spring components. The limit rods are fixedly connected to the middle of the fixed block... At the core position, a rigid rod guides the sliding of the limiting slider, ensuring smooth extension and retraction of the buffer spring. The buffer spring is sleeved on the outer wall of the limiting rod, with one end fixedly connected to one side of the outer wall of the fixed block and the other end fixedly connected to the limiting slider. As the core component of elastic buffering, it absorbs the impact force transmitted by the push plate, achieving multi-stage buffering and further reducing the impact on the internal cables. The limiting slider is slidably connected to the outer wall of the limiting rod, cooperating with the extension and retraction of the buffer spring, and also serving as a limit to prevent the buffer spring from shifting or deforming. Multiple high-strength rigid support frames are fixedly connected to the inner wall of the cable mounting bracket's outer tube, reinforcing the connection between the cable mounting bracket's outer tube and the inner wall of the cable mounting bracket. The rigid structure of the tube prevents deformation and provides fixed support for the inner tube of the cable mounting frame. The inner tube of the cable mounting frame is fixedly connected to the inner wall of multiple support skeletons. It is a tubular structure that installs and fixes the cable structure, ensuring that the cable structure is installed stably and arranged in an orderly manner. The cable sheath is installed on the inner wall of the inner tube of the cable mounting frame. There are multiple sheaths, which are flexible protective sheaths that protect the inner wrapping layer and copper core, and play a role in waterproofing, dustproofing, and friction prevention. The wrapping layer is fitted on the inner wall of the cable sheath. It is made of insulating and flame-retardant material, which provides insulation protection, prevents short circuits in the copper core, and enhances flame-retardant performance. The copper core is fitted on the inner wall of the wrapping layer. It is the conductive core component that transmits communication signals or power, ensuring stable and efficient transmission.

[0019] Furthermore, the pipe interface structure includes a sealing mounting head fixed to one end of the outer pipe layer, a connecting seat fixedly connected to one side of the sealing mounting head, and a sliding sleeve threadedly connected to the end of the connecting seat away from the sealing mounting head via a threaded interface.

[0020] Furthermore, the outer wall of the sealing mounting head is provided with multiple guide ports, the inner walls of the multiple guide ports are all fitted onto the outer wall of the wrapping layer, and a conduit is fixedly connected to one side of the sealing mounting head. Multiple anti-slip blocks are fixedly connected to the outer wall of the conduit at equal intervals, and the conduit is fixedly connected to the cavity opened in the connecting seat through the through port. Inner wall sealing blocks are installed at both ends of the inner wall of the connecting seat.

[0021] Furthermore, one end of the conduit is located inside the outer tube layer, and the conduit is disposed on the outer wall of the copper core. A connecting core is fixedly connected to one end of the conduit. Limiting sleeve rods are fixedly connected to both sides of the outer wall of the connecting core. Both limiting sleeve rods are slidably connected to the inner wall of the sliding sleeve frame. A gathering conduit is fixedly connected to one end of the connecting core. Multiple external plates are fixedly connected to the outer wall of the gathering conduit. A fixed bracket is fixedly connected to one side of the top end of the gathering conduit. A movable bracket is rotatably connected to one end of the fixed bracket.

[0022] The beneficial effects of adopting the above-mentioned further solution are as follows: the sealing mounting head is fixed to one end of the outer pipe layer, forming a sealing connection structure that connects the outer pipe layer and the connecting seat, ensuring a basic seal at the interface; the connecting seat is fixedly connected to one side of the sealing mounting head, forming a rigid connection base, and installing threaded interfaces, conduits, and other components to achieve connection with the sliding sleeve; the sliding sleeve is threadedly connected to the end of the connecting seat away from the sealing mounting head through the threaded interface, forming a sliding connection structure that enables the splicing of multiple pipe sections and adjusts the connection length to ensure a firm connection; multiple guide ports are opened on the outer wall of the sealing mounting head to guide the extension of the cable structure, and are fitted onto the outer wall of the wrapping layer to ensure smooth cable extension; the conduit is fixedly connected to one side of the sealing mounting head, forming a tubular structure that protects the cable structure and guides the cable extension to the external connection point; anti-slip blocks are fixedly connected to the outer wall of the conduit at equal intervals to enhance the connection friction between the conduit and the connecting seat and the sliding sleeve, preventing the conduit from loosening or shifting; the through-hole is used to achieve a fixed connection between the conduit and the connecting seat, and the conduit is fixedly connected to the connecting seat through the through-hole. The internal cavity provides installation space for components such as conduits and connecting cores. Inner wall sealing blocks are installed at both ends of the inner wall of the connector, forming a sealing structure that enhances the sealing of the connector, preventing moisture and impurities from entering the cavity, thus protecting the internal conduit and cable structure. The connecting core is fixedly connected to one end of the conduit, with that end located within the outer tube layer and on the outer wall of the copper core, connecting the conduit and the gathering conduit, guiding the cable structure to converge for external connection. Limiting sleeves are fixedly connected to both sides of the outer wall of the connecting core and slidably connected to the inner wall of the sliding sleeve, limiting the relative sliding of the connecting core and the sliding sleeve to prevent the connecting core from shifting or loosening. The gathering conduit is fixedly connected to one end of the connecting core, converging the cable structure for easy external cable connection. Multiple external plates are fixedly connected to the outer wall of the gathering conduit, facilitating the connection and fixation of the gathering conduit to external equipment and cables. A fixed bracket is fixedly connected to one side of the top of the gathering conduit, with a movable bracket rotatably connected to one end of the fixed bracket; the two work together to form a snap-fit ​​structure, fixing the external cable or equipment and ensuring a firm and stable external connection. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the outer tube layer connection structure of the present invention; Figure 3 This is a schematic diagram of the rear cross-sectional structure of the present invention; Figure 4 This is a schematic diagram of the impact-resistant protective structure of the present invention; Figure 5 This is a schematic diagram of the cable structure of the present invention; Figure 6 This is a schematic diagram of the pipe interface structure of the present invention; Figure 7 This is a schematic diagram of the sealing mounting head connection structure of the present invention; Figure 8 This is a schematic diagram of the sliding sleeve connection structure of the present invention; Figure 9 For the present invention Figure 4 A magnified structural diagram of point A in the middle.

[0024] The attached diagram lists the components represented by each number as follows: 1. Flame-retardant pipe structure; 11. Outer pipe layer; 12. Protective layer; 13. Inner flame-retardant pipe layer; 14. Air vent; 15. Heat-resistant outer pipe; 16. Inner honeycomb filled air layer; 17. Flame-retardant layer installation pipe; 18. Inner fiber skeleton; 19. Inner installation layer; 110. Flame-retardant filling layer; 111. Protective cavity; 2. Impact-resistant protective structure; 21. Cable mounting bracket outer pipe; 22. Fixed terminal; 23. Spring rod; 24. Limiting slider; 25. Limiting rod; 26. Fixing block; 27. Buffer spring; 28. Push plate; 29. ​​Connecting joint; 210. Fixing Section; 211, Pushing block; 212, Support frame; 213, Inner tube of cable mounting frame; 3, Cable structure; 31, Cable outer sheath; 32, Wrapping layer; 33, Copper core; 4, Pipe interface structure; 41, Sealing mounting head; 42, Connecting seat; 43, Threaded interface; 44, Sliding sleeve; 45, Conduit; 46, Anti-slip block; 47, Inner wall sealing block; 48, Cavity; 49, Connecting core; 410, Limiting sleeve; 411, Gathering conduit; 412, Outer plate; 413, Guide port; 414, Through port; 415, Fixed bracket; 416, Movable bracket. Detailed Implementation

[0025] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0026] The present invention provides the following preferred embodiments. like Figure 1-9 As shown, a flame-retardant and impact-resistant protective conduit for communication and power cables includes a flame-retardant structure 1. The flame-retardant structure 1 includes an outer tube layer 11. The inner wall of the outer tube layer 11 is fitted with a heat-resistant outer tube 15. The inner wall of the heat-resistant outer tube 15 is fitted with a protective layer 12. The inner wall of the protective layer 12 is covered with an internal honeycomb-filled air layer 16. A vent 14 is penetrating one side of the outer wall of the outer tube layer 11. The end of the vent 14 away from the outer tube layer 11 is sequentially connected to the heat-resistant outer tube 15 and the protective layer 12, and one end of the outer wall of the vent 14 is located inside the internal honeycomb-filled air layer 16. The inner wall of the internal honeycomb filling air layer 16 is fixedly connected to the flame retardant layer installation pipe 17, the outer wall of the flame retardant layer installation pipe 17 is covered with an internal flame retardant pipe layer 13, the inner wall of the flame retardant layer installation pipe 17 is fixedly connected to a plurality of internal fiber skeletons 18, and the end of the internal fiber skeleton 18 away from the flame retardant layer installation pipe 17 is fixedly connected to an installation inner layer 19. The inner wall of the inner layer 19 is provided with an impact-resistant protection structure 2, which includes a cable mounting bracket outer tube 21 located on the inner wall of the inner layer 19. One end of the outer tube layer 11 is provided with a pipe interface structure 4.

[0027] The outer tube layer 11 is the outermost structure of the pipe, made of high-strength, corrosion-resistant, and flame-retardant material. It serves as the outer protective barrier, resisting external impacts, compression, and corrosion, while also possessing basic flame-retardant properties. The heat-resistant outer tube 15 is installed on the inner wall of the outer tube layer 11, made of high-temperature resistant and flame-retardant material, enhancing the pipe's high-temperature resistance and preventing external high temperatures from transferring to the interior, thus avoiding damage to internal cables due to high temperatures. The protective layer 12 is installed on the inner wall of the heat-resistant outer tube 15, made of flexible protective material, buffering minor external impacts while also providing dust and water protection, protecting the internal structure from impurities and moisture erosion. The internal honeycomb-filled air layer 16 is laid on the inner wall of the protective layer 12, forming a honeycomb-shaped inflatable structure. Utilizing the buffering properties of gas, it helps absorb external impacts while also providing heat insulation and flame retardancy, reducing heat transfer. The air inlet 14 penetrates one side of the outer wall of the outer tube layer 11, with the end furthest from the outer tube layer 11 sequentially penetrating the heat-resistant outer tube 15 and the protective layer 12, and the end located inside the internal honeycomb-filled air layer 16. The honeycomb-filled gas layer 16 is inflated and deflated, and can be filled with inert gas for flame retardancy, ensuring stable buffering and heat insulation performance. At the same time, it can expel moisture from the gas layer to prevent internal dampness. The flame retardant layer installation pipe 17 is fixedly connected to the inner wall of the inner honeycomb-filled gas layer 16, and installs and fixes the inner flame retardant pipe layer 13 and the inner fiber skeleton 18, providing installation support for the internal structure. The inner flame retardant pipe layer 13 is laid on the outer wall of the flame retardant layer installation pipe 17. It is made of high-efficiency flame retardant material to enhance the flame retardant performance of the pipe. When a fire occurs, it can quickly form a flame retardant barrier to block the spread of flames and protect the safety of internal cables. The inner fiber skeleton 18 is fixedly connected to the inner wall of the flame retardant layer installation pipe 17. There are multiple inner fiber skeletons, which are made of high-strength fiber material to enhance the structural rigidity of the pipe and prevent pipe deformation. It also provides fixed support for the installation of the inner layer 19. The installation of the inner layer 19 is fixedly connected to the end of the inner fiber skeleton 18 away from the flame retardant layer installation pipe 17. It is a rigid inner layer structure and installs and fixes the impact-resistant protective structure 2 to ensure the stable installation of the impact-resistant structure.

[0028] The protective cavity 111 formed by the internal fiber skeleton 18 between the flame-retardant layer installation tube 17 and the inner layer 19 is filled with a flame-retardant filling layer 110, which is made of asbestos fiber material.

[0029] The protective cavity 111 is a cavity structure formed between the flame-retardant layer installation pipe 17 and the installation inner layer 19 through the internal fiber skeleton 18. It accommodates the flame-retardant filling layer 110 and enhances the flame-retardant and buffering performance. The flame-retardant filling layer 110 is filled in the protective cavity 111 and is made of asbestos fiber material. By utilizing the high temperature resistance and flame-retardant properties of asbestos fiber, the flame-retardant performance of the pipe is further improved, while playing an auxiliary buffering role to absorb minor external vibrations and impacts.

[0030] Multiple fixed terminals 22 are fixedly connected at equal intervals on the outer wall of the cable mounting bracket outer tube 21. A spring rod 23 is fixedly connected to one end of the multiple fixed terminals 22 away from the cable mounting bracket outer tube 21. The other end of the multiple spring rods 23 is fixedly connected to the inner wall of the inner layer 19 through the fixed terminals 22.

[0031] The outer wall of the cable mounting bracket outer tube 21 and the inner wall of the mounting inner layer 19 are both fixedly connected to push blocks 211 on one side of multiple fixed terminals 22. Each push block 211 is fixedly connected to a fixed section 210 on one side. Each fixed section 210 is rotatably connected to a connecting section 29 at one end away from the push block 211. Each connecting section 29 is fixedly connected to a push plate 28 at one end away from the fixed section 210. The push plates 28 are paired up and correspond to each other.

[0032] Multiple push plates 28 are fixed to one side of the fixed block 26. A limiting rod 25 is fixedly connected to the center of the fixed block 26. A buffer spring 27 is sleeved on the outer wall of the limiting rod 25. One end of the multiple buffer springs 27 is fixedly connected to one side of the outer wall of the fixed block 26, and the end of the multiple buffer springs 27 away from the fixed block 26 is fixedly connected to a limiting slider 24. The limiting slider 24 is slidably connected to the outer wall of the limiting rod 25.

[0033] The inner wall of the outer tube 21 of the cable mounting frame is fixedly connected to a support frame 212, and the inner wall of multiple support frames 212 is fixedly connected to an inner tube 213 of the cable mounting frame.

[0034] The inner wall of the inner tube 213 of the cable mounting frame is provided with a cable structure 3. The cable structure 3 includes multiple cable sheaths 31 installed on the inner wall of the inner tube 213 of the cable mounting frame. The inner wall of the multiple cable sheaths 31 is covered with a wrapping layer 32, and the inner wall of the multiple wrapping layers 32 is covered with a copper core 33.

[0035] The outer tube 21 of the cable mounting frame is located on the inner wall of the inner mounting layer 19. It is a rigid tubular structure that houses and fixes the support frame 212, the inner tube 213 of the cable mounting frame, and various buffer components. Multiple fixed terminals 22 are fixedly connected to the outer wall of the outer tube 21 at equal intervals, forming a fixed connection structure and connecting to spring rods 23. One end of the spring rod 23 is fixedly connected to the end of the fixed terminal 22 away from the outer tube 21 of the cable mounting frame, and the other end is fixedly connected to the inner wall of the inner mounting layer 19 through the fixed terminal 22. This forms an elastic buffer structure that absorbs external impacts and buffers vibrations between the outer tube 21 of the cable mounting frame and the inner mounting layer 19, preventing impact transmission to the internal cables. A pushing block 211 is fixedly connected to the outer wall of the outer tube 21 of the cable mounting frame and the inner mounting layer 19. The inner wall of layer 19, located on one side of multiple fixed terminals 22, serves as a push-linkage structure to transmit impact force. Multiple fixed sections 210 are fixedly connected to one side of the push block 211, forming a rotatable connection base for mounting connecting sections 29. Connecting sections 29 are rotatably connected to the end of the fixed section 210 away from the push block 211, acting as a linkage rod connecting the push block 211 and the push plate 28 to transmit buffering force. Push plates 28 are fixedly connected to the end of the connecting section 29 away from the fixed section 210, with multiple push plates 28 arranged in pairs corresponding to each other, transmitting the impact force to the buffer spring 27 for multi-stage buffering. Multiple push plates 28 are fixedly connected to one side of the fixed block 26, forming a fixed base for mounting limiting rods 25 and buffer springs. The spring component 27 and the limiting rod component 25 are fixedly connected to the center of the fixed block 26. As rigid rods, they guide the sliding of the limiting slider 24, ensuring smooth extension and retraction of the spring component 27. The spring component 27 is sleeved on the outer wall of the limiting rod component 25, with one end fixedly connected to one side of the outer wall of the fixed block 26 and the other end fixedly connected to the limiting slider 24. It is a core component for elastic buffering, absorbing the impact force transmitted by the push plate 28, achieving multi-stage buffering, and further weakening the impact on the internal cables. The limiting slider 24 is slidably connected to the outer wall of the limiting rod component 25, cooperating with the extension and retraction of the spring component 27, and also serving a limiting function to prevent the spring component 27 from shifting or deforming. The support frame 212 is fixedly connected to the inner wall of the outer tube 21 of the cable mounting frame. Multiple high-strength rigid frames enhance the structural rigidity of the cable mounting frame outer tube 21 and inner tube 213, preventing deformation and providing fixed support for the inner tube 213. The inner tube 213 is fixedly connected to the inner wall of multiple support frames 212, forming a tubular structure to install and fix the cable structure 3, ensuring its stable installation and orderly arrangement. Multiple cable sheaths 31 are installed on the inner wall of the inner tube 213, serving as flexible protective sheaths to protect the inner wrapping layer 32 and copper core 33, providing waterproofing, dustproofing, and friction protection. The wrapping layer 32, fitted onto the inner wall of the cable sheath 31, is made of insulating and flame-retardant material, providing insulation protection, preventing short circuits in the copper core 33, and enhancing flame-retardant performance.The copper core 33 is fitted inside the sheath 32 and is a conductive core component that transmits communication signals or power, ensuring stable and efficient transmission.

[0036] The pipe interface structure 4 includes a sealing mounting head 41 fixed to one end of the outer pipe layer 11. A connecting seat 42 is fixedly connected to one side of the sealing mounting head 41. A sliding sleeve 44 is threadedly connected to the end of the connecting seat 42 away from the sealing mounting head 41 through a threaded interface 43.

[0037] The outer wall of the sealing mounting head 41 has multiple guide ports 413. The inner walls of the multiple guide ports 413 are all fitted onto the outer wall of the wrapping layer 32. A conduit 45 is fixedly connected to one side of the sealing mounting head 41. Multiple anti-slip blocks 46 are fixedly connected at equal intervals to the outer wall of the conduit 45. The conduit 45 is fixedly connected to the cavity 48 opened in the connecting seat 42 through the through port 414. Inner wall sealing blocks 47 are installed at both ends of the inner wall of the connecting seat 42.

[0038] One end of the conduit 45 is located inside the outer tube layer 11, and the conduit 45 is disposed on the outer wall of the copper core 33. One end of the conduit 45 is fixedly connected to the connecting core 49. Limiting sleeve rods 410 are fixedly connected to both sides of the outer wall of the connecting core 49. The two limiting sleeve rods 410 are slidably connected to the inner wall of the sliding sleeve 44. One end of the connecting core 49 is fixedly connected to the gathering conduit 411. Multiple external plates 412 are fixedly connected to the outer wall of the gathering conduit 411. A fixed bracket 415 is fixedly connected to one side of the top end of the gathering conduit 411. One end of the fixed bracket 415 is rotatably connected to the movable bracket 416.

[0039] The sealing mounting head 41 is fixed to one end of the outer pipe layer 11, forming a sealing connection structure that connects the outer pipe layer 11 and the connecting seat 42, ensuring a basic seal at the interface. The connecting seat 42 is fixedly connected to one side of the sealing mounting head 41, serving as a rigid connection base. It houses components such as the threaded interface 43 and the conduit 45, enabling connection with the sliding sleeve 44. The sliding sleeve 44 is threaded to the end of the connecting seat 42 away from the sealing mounting head 41 via the threaded interface 43, forming a sliding connection structure that allows for the splicing of multiple pipe sections and adjustment of the connection length, ensuring a secure connection. The guide port 413 is located on the outer wall of the sealing mounting head 41. Multiple guide cables extend from the cable structure 3, and are fitted onto the outer wall of the wrapping layer 32 to ensure smooth cable extension. A conduit 45 is fixedly connected to one side of the sealing mounting head 41; it is a tubular structure that protects the cable structure 3 and guides the cable extension to the external connection point. Anti-slip blocks 46 are fixedly connected at equal intervals to the outer wall of the conduit 45, enhancing the connection friction between the conduit 45 and the connecting seat 42 and the sliding sleeve 44, preventing the conduit 45 from loosening or shifting. A through-hole 414 is used to achieve a fixed connection between the conduit 45 and the connecting seat 42. The conduit 45 is fixedly connected to the cavity 48 opened inside the connecting seat 42 through the through-hole 414. 8 provides installation space for components such as conduit 45 and connecting core 49; the inner wall sealing block 47 is installed at both ends of the inner wall of the connecting seat 42, forming a sealing structure to enhance the sealing performance inside the connecting seat 42, preventing moisture and impurities from entering the cavity 48, thereby protecting the internal conduit 45 and cable structure 3; the connecting core 49 is fixedly connected to one end of the conduit 45, and one end of the conduit 45 is located inside the outer tube layer 11 and set on the outer wall of the copper core 33, connecting the conduit 45 and the gathering conduit 411, guiding the cable structure 3 to gather externally; the limiting sleeve rod 410 is fixedly connected to both sides of the outer wall of the connecting core 49 and slidably connected to the sliding sleeve 44. The inner wall limits the relative sliding of the connecting core 49 and the sliding sleeve 44 to prevent the connecting core 49 from shifting or loosening; the gathering conduit 411 is fixedly connected to one end of the connecting core 49, gathering the cable structure 3 to facilitate external cable connection; multiple external plates 412 are fixedly connected to the outer wall of the gathering conduit 411 to facilitate the connection and fixation of the gathering conduit 411 with external equipment and cables; the fixed bracket 415 is fixedly connected to one side of the top of the gathering conduit 411, and the movable bracket 416 is rotatably connected to one end of the fixed bracket 415. The two cooperate to form a snap-fit ​​structure to fix the external cable or equipment and ensure that the external connection is firm and stable.

[0040] The working principle of this invention is as follows: When the pipe is in operation, the outer pipe layer 11, the heat-resistant outer pipe 15, and the protective layer 12 form an outer protective barrier to resist external impacts, corrosion, and high temperatures; the internal honeycomb-filled gas layer 16, the flame-retardant layer installation pipe 17, the internal flame-retardant pipe layer 13, and the flame-retardant filling layer 110 form an all-round flame-retardant system, which quickly blocks the spread of flames, absorbs heat, and protects internal cables in the event of a fire; in the impact-resistant protective structure 2, the spring rod 23 and the buffer spring 27 absorb external impacts, the pushing block 211, the connecting joint 29, and the pushing plate 28 disperse the impact force, and the internal fiber skeleton 18 and the support skeleton 212 maintain the rigidity of the pipe structure and prevent pipe deformation. This further protects the internal cable structure 3; in the cable structure 3, the copper core 33 transmits communication signals or power, the sheath 32 provides insulation protection, and the cable outer sheath 31 protects the internal components; the pipe interface structure 4 uses the threaded interface 43 and the sliding sleeve 44 to achieve splicing of multiple pipe sections, the sealing installation head 41 and the inner wall sealing block 47 ensure the interface is sealed, the conduit 45 and the gathering conduit 411 guide the extension and external connection of the cable, and the fixed bracket 415 and the movable bracket 416 fix the external components to ensure a firm connection; the air vent 14 adjusts the pressure of the internal honeycomb filling air layer 16 to ensure its buffering and heat insulation performance is stable, and the whole system works together to achieve safe protection and stable transmission of the cable.

[0041] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A flame-retardant and impact-resistant protective conduit for communication and power cables, characterized in that, The pipe includes a flame-retardant structure (1), which includes an outer pipe layer (11). The outer pipe layer (11) has a heat-resistant outer pipe (15) installed on its inner wall. The heat-resistant outer pipe (15) has a protective layer (12) installed on its inner wall. The inner wall of the protective layer (12) is covered with an internal honeycomb-filled gas layer (16). A gas inlet (14) is penetrating one side of the outer wall of the outer pipe layer (11). The heat-resistant outer pipe (15) and the protective layer (12) are sequentially penetrating one end of the gas inlet (14) away from the outer pipe layer (11). One end of the outer wall of the gas inlet (14) is located inside the internal honeycomb-filled gas layer (16). The inner wall of the internal honeycomb filling air layer (16) is fixedly connected to a flame retardant layer installation tube (17), the outer wall of the flame retardant layer installation tube (17) is covered with an internal flame retardant tube layer (13), the inner wall of the flame retardant layer installation tube (17) is fixedly connected to a plurality of internal fiber skeletons (18), and the end of the internal fiber skeleton (18) away from the flame retardant layer installation tube (17) is fixedly connected to an installation inner layer (19). The inner wall of the mounting inner layer (19) is provided with an impact-resistant protection structure (2), which includes a cable mounting bracket outer tube (21) located on the inner wall of the mounting inner layer (19). One end of the outer tube layer (11) is provided with a pipe interface structure (4).

2. The flame-retardant and impact-resistant protective conduit for communication and power cables according to claim 1, characterized in that, The protective cavity (111) formed between the flame-retardant layer mounting tube (17) and the mounting inner layer (19) through the internal fiber skeleton (18) is filled with a flame-retardant filling layer (110), which is made of asbestos fiber material.

3. The flame-retardant and impact-resistant protective conduit for communication and power cables according to claim 1, characterized in that, The outer wall of the cable mounting bracket outer tube (21) is fixedly connected with multiple fixed terminals (22) at equal intervals. One end of each fixed terminal (22) away from the cable mounting bracket outer tube (21) is fixedly connected with a spring rod (23). The other end of each spring rod (23) is fixedly connected to the inner wall of the inner layer (19) through the fixed terminal (22).

4. The flame-retardant and impact-resistant protective conduit for communication and power cables according to claim 1, characterized in that, The outer wall of the cable mounting bracket outer tube (21) and the inner wall of the mounting inner layer (19) are both fixedly connected to a push block (211) at one side of a plurality of fixed terminals (22). A fixed section (210) is fixedly connected to one side of each of the plurality of push blocks (211). A connecting section (29) is rotatably connected to one end of each of the plurality of fixed sections (210) away from the push block (211). A push plate (28) is fixedly connected to one end of each of the plurality of connecting sections (29) away from the fixed section (210). The plurality of push plates (28) are paired up and correspond to each other.

5. The flame-retardant and impact-resistant protective conduit for communication and power cables according to claim 4, characterized in that, Multiple push plates (28) on one side are fixed to one side of a fixed block (26). A limiting rod (25) is fixedly connected to the center of the fixed block (26). A buffer spring (27) is sleeved on the outer wall of the limiting rod (25). One end of the multiple buffer springs (27) is fixedly connected to one side of the outer wall of the fixed block (26), and a limiting slider (24) is fixedly connected to the end of the multiple buffer springs (27) away from the fixed block (26). The limiting slider (24) is slidably connected to the outer wall of the limiting rod (25).

6. The flame-retardant and impact-resistant protective conduit for communication and power cables according to claim 1, characterized in that, The inner wall of the outer tube (21) of the cable mounting frame is fixedly connected to a support frame (212), and the inner walls of multiple support frames (212) are fixedly connected to inner tubes (213) of the cable mounting frame.

7. The flame-retardant and impact-resistant protective conduit for communication and power cables according to claim 6, characterized in that, The inner wall of the inner tube (213) of the cable mounting frame is provided with a cable structure (3). The cable structure (3) includes multiple cable sheaths (31) installed on the inner wall of the inner tube (213) of the cable mounting frame. The inner walls of the multiple cable sheaths (31) are covered with wrapping layers (32), and the inner walls of the multiple wrapping layers (32) are covered with copper cores (33).

8. The flame-retardant and impact-resistant protective conduit for communication and power cables according to claim 1, characterized in that, The pipe interface structure (4) includes a sealing mounting head (41) fixed to one end of the outer pipe layer (11), a connecting seat (42) fixedly connected to one side of the sealing mounting head (41), and a sliding sleeve (44) threadedly connected to the end of the connecting seat (42) away from the sealing mounting head (41) through a threaded interface (43).

9. A flame-retardant and impact-resistant protective conduit for communication and power cables according to claim 8, characterized in that, The outer wall of the sealing mounting head (41) is provided with multiple guide ports (413), the inner walls of the multiple guide ports (413) are all fitted onto the outer wall of the wrapping layer (32), and a conduit (45) is fixedly connected to one side of the sealing mounting head (41). Multiple anti-slip blocks (46) are fixedly connected at equal intervals to the outer wall of the conduit (45), and the conduit (45) is fixedly connected to the cavity (48) opened in the connecting seat (42) through the through port (414). Inner wall sealing blocks (47) are installed at both ends of the inner wall of the connecting seat (42).

10. A flame-retardant and impact-resistant protective conduit for communication and power cables according to claim 9, characterized in that, One end of the conduit (45) is located inside the outer tube layer (11), and the conduit (45) is disposed on the outer wall of the copper core (33). One end of the conduit (45) is fixedly connected to a connecting core (49). Limiting sleeve rods (410) are fixedly connected to both sides of the outer wall of the connecting core (49). The two limiting sleeve rods (410) are slidably connected to the inner wall of the sliding sleeve (44). One end of the connecting core (49) is fixedly connected to a gathering conduit (411). Multiple external plates (412) are fixedly connected to the outer wall of the gathering conduit (411). A fixed bracket (415) is fixedly connected to one side of the top end of the gathering conduit (411). One end of the fixed bracket (415) is rotatably connected to a movable bracket (416).

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