Moisture-proof fire-resistant CPVC cable protection pipe

Abstract

The application relates to the technical field of cable protection, in particular to a moisture-proof and fire-resistant CPVC cable protection pipe, which comprises protection half-pipes, the protection half-pipes are arranged in two, a side of one protection half-pipe is linearly arranged at equal intervals and is provided with a hinged seat through screw mounting, and a side of the other protection half-pipe close to the hinged seat is linearly arranged and is provided with a hinged arm through screw mounting. During application of the technical scheme, the moisture-proof, fire-proof, convenient maintenance and low-cost design are integrated, so that the actual demand of cable protection can be fully met during use, external mechanical damage and the influence of a humid environment can be resisted, fire can be quickly responded to and extinguished, maintenance can be completed through simple operation, the fireproof mechanism can be reused, the effect of excellent comprehensive performance is achieved, the problems of single function, insufficient practicability and economy of the cable protection pipe in the prior art are solved, long-term stable operation of the cable is ensured, and the risk of power or communication interruption is reduced.

Description

Technical Field

[0001] This application relates to the field of cable protection technology, and in particular to a moisture-proof and fire-resistant CPVC cable protection pipe. Background Technology

[0002] Currently, cables serve as the core carrier for power transmission and signal communication. Their operational safety is directly related to the stability and reliability of power systems and communication networks. Cable protection pipes, as protective structures laid on the outer layer of cables, need to have sufficient mechanical strength to withstand damage from external compression and collisions. At the same time, in complex installation scenarios such as where communication cables and power lines cross, they play a crucial role in isolating the risk of short circuits in power lines, preventing communication cables and related equipment from burning out while energized, and weakening magnetic field interference from power lines. However, the actual installation environment of cables is often quite complex. Traditional protective pipes made of metal materials such as steel pipes are prone to short circuits due to moisture, which can create potential electrical fire hazards. Therefore, non-metallic protective pipes that combine mechanical strength with insulation and moisture-proof performance are gradually becoming the mainstream choice. In the prior art, Chinese patent publication number "CN217824095U" discloses a high-strength CPVC power cable protection pipe. This protection pipe effectively improves the overall strength of the protection pipe by fixing reinforcing plates on the inner surfaces of CPVC cable protection pipe one and CPVC cable protection pipe two, and with the synergistic effect of the inner reinforcing ribs, thus avoiding deformation of the protection pipe caused by external factors. At the same time, by utilizing the fit design between the insulating clamp and the cable, the rebound force generated by the deformation of the elastic plate increases the friction between the insulating clamp and the cable, ensuring the stable protection effect of the protection pipe on the cable. It has certain advantages in terms of mechanical protection and insulation fixation. However, in practical applications, the aforementioned existing technologies still have significant defects and shortcomings: they only focus on improving the mechanical strength and installation stability of the protective pipe, completely lacking protection and fire extinguishing structures for fire risks. During long-term operation, cables may experience localized overheating or even fire due to aging or overload. If a fire occurs on the outside of the protective pipe, the high temperature will also spread inward. Regardless of whether the fire originates inside or outside the protective pipe, the contact between the high-temperature environment and oxygen will cause the fire to spread and expand, resulting in serious consequences such as cable burning, power or communication interruption. The aforementioned existing technologies cannot quickly trigger the fire extinguishing mechanism in the early stages of a fire, making it difficult to extinguish the fire risk at the source and providing comprehensive safety protection for cables. Therefore, it is urgent to improve the design of existing cable protective pipes to make up for their lack of fire prevention and fire extinguishing functions. Summary of the Invention

[0003] To improve the fire resistance of existing technologies, this application provides a moisture-proof and fire-resistant CPVC cable protection pipe.

[0004] This application provides a moisture-proof and fire-resistant CPVC cable protection pipe, which adopts the following technical solution: it includes a protective half-pipe, wherein the protective half-pipe is configured as two, one of the protective half-pipes is linearly arranged at equal intervals on one side and is fitted with a hinge seat by screws, the other protective half-pipe is linearly arranged on the side near the hinge seat and is fitted with a hinge arm by screws, the outer end of the hinge arm is hinged to the inner side of the hinge seat, the two ends of the protective half-pipe away from the hinge arm and the hinge seat are fixedly installed with mounting plates, and the inner side of the protective half-pipe is fitted with fireproof devices at equal intervals by screws; The fireproof device includes a heat-conducting base, which is evenly spaced and fixedly connected to the inner side of the protective half-tube along its extension direction. An installation module is fixedly installed on the side of the heat-conducting base away from the protective half-tube. A heat-conducting can is installed inside the installation module. A narrow inlet pipe is fixedly connected to the front end of the heat-conducting can. A solid phase change material is placed inside the heat-conducting can. The end of the installation module is inserted and sealed inside the narrow inlet pipe of the heat-conducting can. During the application of this device, the solid phase change material can be selected from various existing mature technologies: one is a microcapsule-coated perfluorohexanone composite material (an existing industrial-grade flame-retardant material). This material uses nano-SiO2 as the microcapsule shell (particle size 50-200μm, coating rate ≥95%), which is a stable solid particle at room temperature, non-volatile, non-toxic and harmless (LD50 > 5000mg / kg), and compatible with flame-retardant HDPE or 304 stainless steel. The stainless steel heat-conducting canister has good compatibility. When the canister is exposed to temperatures of ≥150℃ from a cable fire, the microcapsule shell melts and ruptures, releasing perfluorohexanone which instantly vaporizes under heat from a fire source of ≥300℃, expanding in volume approximately 400 times to form an inert gas with a density 9.9 times that of air. This gas quickly sinks and adheres to the cable surface, forming a flame-retardant layer. It extinguishes the fire by absorbing heat, cooling, capturing combustion free radicals, and isolating oxygen. The gaseous products leave no residue and are non-corrosive. Secondly, melamine cyanurate (MCA, a nitrogen-based environmentally friendly flame retardant) is a stable solid crystal at room temperature, non-volatile and non-toxic. Its thermal decomposition temperature is approximately 270℃. When exposed to the high temperatures generated by cable combustion, it absorbs heat, decomposes, and sublimates, generating an inert mixture of nitrogen, a small amount of carbon dioxide, and cyanuric acid derivatives. This mixture, slightly denser than air, forms an air curtain around the cable, diluting oxygen and lowering the cable temperature. The smoke toxicity is at ZA1 level and will not damage the cable insulation. Thirdly, IG541... The solid-state adsorption and storage system for mixed gases (a solid-state improvement based on existing IG541 fire extinguishing technology) uses porous adsorption materials to adsorb and store a mixed gas of IG541 (an existing clean gas fire extinguishing agent) consisting of 52% nitrogen, 40% argon, and 8% carbon dioxide. At room temperature, it exists in a solid adsorbed state, posing no risk of leakage and being non-toxic and environmentally friendly. When the temperature rises to ≥180℃ (typical temperature for cable fires), the adsorption material desorbs and releases the IG541 mixed gas. The gas has a relative molecular mass of approximately 31 g / mol and a density slightly greater than air. It can uniformly cover the cable surface, reducing the oxygen concentration to below 12.5% ​​to block combustion. Simultaneously, vaporization absorbs heat, lowering the ambient temperature. The gas itself is a natural atmospheric component with no toxic side effects. The fourth component is a urethane-zinc borate composite vaporizing agent (an existing composite flame retardant material). At room temperature, it is a solid particle, non-hygroscopic, and chemically stable. At temperatures ≥280℃, it thermally decomposes and vaporizes, releasing a mixed gas consisting of CO2, N2, and borate vapor, with a density 1 times that of air.31 times stronger, it can adhere tightly to complex areas such as cable bends and joints, extinguishing fires through a triple action of oxygen dilution, flame-retardant film formation, and heat absorption and cooling. The decomposition products are free of toxic gases, leaving only a small amount of easily cleaned inorganic powder. These materials are all products of existing mature technologies and can be directly loaded into containers around the cable. At high temperatures, they precisely vaporize to form an inert fire-extinguishing gas that covers the cable's outer surface, achieving non-toxic and harmless cooling and fire-extinguishing protection.

[0005] Optionally, the installation module includes a movable mechanism, an adjusting mechanism, an elastic sealing mechanism, a limiting seat, and a limiting shaft. The movable mechanism is installed with screws at one end of the heat-conducting base away from the protective half-pipe. The adjusting mechanism is fixedly connected to the end of the movable mechanism away from the heat-conducting base and is used to adjust the movement of the movable mechanism. The elastic sealing mechanism is fixedly connected to the moving end of the adjusting mechanism away from the protective half-pipe, and the sealing end of the elastic sealing mechanism is inserted into the narrow inlet pipe of the tank. The limiting shaft is inserted into the limiting seat, and the limiting seat is installed with screws at the end of the heat-conducting base away from the movable mechanism. The limiting shaft is welded to the rear end of the heat-conducting tank.

[0006] Optionally, the movable mechanism includes a fixed side plate, which is screwed to the side of the heat-conducting seat away from the protective half-tube. A guide rail is welded to the side of the fixed side plate away from the heat-conducting seat, and a slider is slidably connected inside the guide rail.

[0007] Optionally, the adjustment mechanism includes a side plate, which is integrally formed and disposed at the end of the fixed side plate away from the limiting seat. A lead screw is rotatably connected to the middle of the rear side of the side plate, and a movable block is threadedly connected to the outer surface of the lead screw. The movable block is connected to the slider on the side near the protective half tube. The elastic sealing mechanism is fixedly connected to the side of the movable block near the limiting seat. An adjustment component is provided on the side of the side plate away from the lead screw.

[0008] Optionally, the adjustment assembly includes a mounting plate, which is fixedly connected to the side of the side plate away from the heat transfer tank. A manual adjustment wheel is rotatably connected to the middle of the side of the mounting plate away from the heat transfer tank. The rear side of the manual adjustment wheel is connected to the front end of a lead screw via a coupling. An anti-slip screw is threaded to one side of the manual adjustment wheel, and the end of the anti-slip screw passes through the manual adjustment wheel.

[0009] Optionally, the mounting plate has an anti-slip screw clip hole on the side away from the side plate, the rear end of the anti-slip screw is inserted into the anti-slip screw clip hole, the anti-slip screw is a hand-tightening screw, and anti-slip arc grooves are evenly spaced on the outer surface of the handle of the anti-slip screw.

[0010] Optionally, the elastic sealing mechanism includes a telescopic spring, which is fixedly connected to the side of the movable block near the heat-conducting tank. A connecting plate is fixedly connected to the end of the telescopic spring, and a sealing piston rod is fixedly connected to the side of the connecting plate away from the telescopic spring. The sealing piston rod is inserted into the narrow inlet pipe of the tank.

[0011] Optionally, the connecting plate is fixedly connected to a support guide shaft in a ring at equal intervals on the side near the telescopic spring. The end of the support guide shaft passes through the movable block. A heat-resistant sealing ring is fixedly connected to the outer surface of the sealing piston rod. The heat-resistant sealing ring seals the gap between the sealing piston rod and the narrow inlet pipe of the tank. The movable block and the support guide shaft are slidably connected to each other.

[0012] Optionally, the mounting plates on the two protective half-pipes are connected by bolts, and the two protective half-pipes are closed to form a CPVC cable protection pipe. Cable support modules are fixedly installed on the inner side of each protective half-pipe, and the inner sides of the two cable support modules are fitted together. The heat-conducting tank is an aluminum alloy metal heat-conducting tank, and the heat-conducting base is also an aluminum alloy base. During installation, the adjusting assembly rotates the adjusting screw, causing the movable block to move backward. Simultaneously, the moving block causes the telescopic spring to drive the sealing piston rod to insert into the narrow inlet pipe of the tank. At this time, the sealing piston rod seals the tank. The heat transfer can has a narrow inlet pipe. Under normal use, the phase change material inside the heat transfer can is in a stable state. In the event of a fire, the heat transfer can and its base are subjected to high temperatures, which are then transferred to the phase change material inside the can. At this point, the phase change material vaporizes, forming an inert gas. Simultaneously, the internal pressure of the heat transfer can increases, causing the high-pressure gas to push open the sealing piston rod. The sealing piston rod overcomes the pressure of the extension spring and moves outward. When the sealing piston rod disengages from the narrow inlet pipe, the inert gas is released. This inert gas is non-flammable and its gravity is greater than that of air, so it gradually adheres to the cable. The outer surface forms an inert gas layer, thus achieving a flame-retardant effect. During use, when the fire extinguishes and the temperature drops, the telescopic spring loses its high pressure and returns to its original compressed state, allowing it to re-drive the sealing piston rod into the narrow inlet pipe of the tank for a second seal. If the phase change material inside the high-pressure tank is not completely consumed at this point, it can be used for subsequent fire prevention. If it is completely consumed, simply loosen the bolts at the mounting plate. This allows the two half-protective tubes to be flipped, and the adjusting assembly can then drive the screw to move the movable block outwards. Guided by the slider, the movable block slides stably, thus sealing the tank. The piston rod is pulled out of the narrow inlet pipe of the tank. As the sealing piston rod moves outward, the heat-conducting tank loses the pressure of the extension spring and can move towards the adjustment mechanism. At this time, the limit pin disengages from the limit seat, and the heat-conducting tank can be removed. Then, the phase change material is replenished, and the limit pin on the rear side of the heat-conducting tank is inserted into the limit seat. The adjusting component drives the screw to move the movable block to re-insert the sealing piston rod into the narrow inlet pipe of the tank for sealing. At this time, the movable block and the sealing piston rod limit the other end of the heat-conducting tank, thus completing the installation.

[0013] Optionally, the cable support module includes an external connecting frame. Two external connecting frames are fixedly connected to the inner side of the protective half-pipe. The external connecting frames are positioned at the gaps between various fire-resistant devices. Cable clamps are linearly and evenly arranged on the inner side of each external connecting frame. Arc-shaped grooves are formed on the inner side of each cable clamp. The arc-shaped grooves between the inner sides of the two cable clamps close together to form a cavity for accommodating and positioning the cable during installation. During application, the external connecting frames and cable clamps can support the installed and protected cable, ensuring its stable placement within the inner middle of the CPVC cable protection pipe. Even if there is water accumulation inside the CPVC cable protection pipe, the cable will be supported on the outside, preventing immersion and providing good moisture protection for the cable.

[0014] In summary, this application includes the following beneficial technical effects: During the application of this technical solution, by setting up CPVC material protective half-pipes and cable support modules, the problem of moisture and corrosion of traditional metal protective pipes can be avoided during use. At the same time, the cable is stably erected in the middle of the inner side of the protective pipe, preventing the cable from contacting the internal water, thus achieving a good moisture-proof effect and solving the problem of cable short circuits caused by moisture in existing metal protective pipes. In addition, by setting up a fireproof device composed of heat-conducting base, heat-conducting tank and solid phase change material, a gasification reaction can be quickly triggered in the event of a fire, forming an inert gas layer with a density greater than air to cover the cable surface. Through heat absorption and cooling, isolating oxygen and interrupting the combustion chain, fire is extinguished, thus achieving a highly efficient fireproof effect and solving the problem that existing technologies lack fireproof structures and cannot eliminate the risk of fire at the source. During the application of this technical solution, the flexible sealing mechanism and adjustment components enable rapid sealing of the heat-conducting tank using the elastic force of the telescopic spring, preventing leakage of solid phase change material. Simultaneously, during maintenance, simply reversing the manual adjustment wheel disengages the sealing piston rod from the tank, facilitating easy removal of the heat-conducting tank for material replenishment. This achieves convenient disassembly and maintenance, solving the problems of complex maintenance and difficulty in reuse of existing fire-resistant devices. Furthermore, because the fire-resistant mechanism only requires replenishment of solid phase change material for reuse, and all structures are made of conventional components, the initial operating cost and subsequent maintenance cost of the device are significantly reduced, achieving low-cost operation and solving the problem of high operating and maintenance costs of existing protective devices. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application; Figure 2 This is a schematic diagram of the open state structure in an embodiment of this application; Figure 3 This is a schematic diagram of the front view structure in an embodiment of this application; Figure 4 This is a schematic diagram of the front view structure in the open state in an embodiment of this application; Figure 5 This is a bottom view of the fire protection device in the embodiments of this application; Figure 6 This is a front view schematic diagram of the fire protection device in the open state in the embodiments of this application; Figure 7 This is a bottom view of the fire protection device in a disassembled state in an embodiment of this application; Figure 8 This is a front view structural diagram of the fire protection device in a disassembled state in an embodiment of this application; Figure 9 This is a top view of the fire protection device in a disassembled state in an embodiment of this application.

[0016] Reference numerals: 1. Protective half-pipe; 2. Hinge seat; 3. Hinge arm; 4. Mounting plate; 5. Cable support module; 51. External connecting frame; 52. Cable clamp; 53. Arc-shaped slot; 6. Fireproof device; 61. Heat-conducting seat; 62. Mounting module; 621. Movable mechanism; 6211. Fixed side plate; 6212. Guide rail; 6213. Slider; 622. Adjustment mechanism; 6221. Side plate; 6222. Lead screw; 6223. Movable block; 6 224. Adjustment component; 62241. Mounting plate; 62242. Manual adjustment wheel; 62243. Anti-slip screw; 62244. Anti-slip screw clip; 623. Elastic sealing mechanism; 6231. Telescopic spring; 6232. Connecting plate; 6233. Sealing piston rod; 6234. Support guide shaft; 6235. Heat-resistant sealing ring; 624. Limiting seat; 625. Limiting shaft; 63. Heat-conducting tank; 64. Narrow inlet pipe of the tank. Detailed Implementation

[0017] The following is in conjunction with the appendix Figure 1-9 This application will be described in further detail.

[0018] This application discloses a moisture-proof and fire-resistant CPVC cable protection pipe. For example... Figure 1-8 As shown, it includes a protective half-tube 1, which is configured as two. One protective half-tube 1 is linearly arranged at equal intervals on one side and is fitted with a hinge seat 2 by screws. The other protective half-tube 1 is linearly arranged on the side near the hinge seat 2 and is fitted with a hinge arm 3 by screws. The outer end of the hinge arm 3 is hinged to the inner side of the hinge seat 2. Mounting plates 4 are fixedly installed on both ends of the protective half-tube 1 on the side away from the hinge arm 3 and the hinge seat 2. Fireproof devices 6 are installed at equal intervals on the inner side of the protective half-tube 1 by screws. The fireproof device 6 includes a heat-conducting seat 61, which is evenly spaced along the extension direction of the protective half-tube 1 and fixedly connected to the inner side of the protective half-tube 1. An installation module 62 is fixedly installed on the side of the heat-conducting seat 61 away from the protective half-tube 1. A heat-conducting tank 63 is installed inside the installation module 62. A narrow inlet pipe 64 is fixedly connected to the front end of the heat-conducting tank 63. A solid phase change material is placed inside the heat-conducting tank 63. The end of the installation module 62 is inserted and sealed inside the narrow inlet pipe 64 of the heat-conducting tank 63. During the application of this device, the solid phase change material can be selected from various existing mature technologies: one is a microcapsule-coated perfluorohexanone composite material (an existing industrial-grade flame-retardant material). This material uses nano-SiO2 as the microcapsule shell (particle size 50-200μm, coating rate ≥95%), which is a stable solid particle at room temperature, non-volatile, non-toxic and harmless (LD50 > 5000mg / kg), and compatible with flame-retardant HDPE or 304. The stainless steel heat-conducting canister 63 has good compatibility. When the canister is exposed to temperatures of ≥150℃ from a cable fire, the microcapsule shell melts and ruptures, releasing perfluorohexanone which instantly vaporizes under the heat of a fire source at ≥300℃, expanding in volume approximately 400 times to form an inert gas with a density 9.9 times that of air. This gas quickly sinks and adheres to the cable surface, forming a flame-retardant layer. It extinguishes the fire by absorbing heat, cooling, capturing combustion free radicals, and isolating oxygen. The gaseous products leave no residue and are non-corrosive. Secondly, melamine cyanurate (MCA, an existing nitrogen-based environmentally friendly flame retardant) is a stable solid crystal at room temperature, non-volatile and non-toxic. Its thermal decomposition temperature is approximately 270℃. When exposed to the high temperatures generated by cable combustion, it absorbs heat, decomposes, and sublimates, generating an inert mixture of nitrogen, a small amount of carbon dioxide, and cyanuric acid derivatives. Slightly denser than air, it can form an air curtain around the cable, diluting oxygen and lowering the cable temperature. The smoke toxicity reaches ZA1 level and will not damage the cable insulation layer. Thirdly, IG541... The solid-state adsorption and storage system for mixed gases (a solid-state improvement based on existing IG541 fire extinguishing technology) uses porous adsorption materials to adsorb and store a mixed gas of IG541 (an existing clean gas fire extinguishing agent) consisting of 52% nitrogen, 40% argon, and 8% carbon dioxide. At room temperature, it exists in a solid adsorbed state, posing no risk of leakage and being non-toxic and environmentally friendly. When the temperature rises to ≥180℃ (typical temperature for cable fires), the adsorption material desorbs and releases the IG541 mixed gas. The gas has a relative molecular mass of approximately 31 g / mol and a density slightly greater than air. It can uniformly cover the cable surface, reducing the oxygen concentration to below 12.5% ​​to block combustion. Simultaneously, vaporization absorbs heat, lowering the ambient temperature. The gas itself is a natural atmospheric component with no toxic side effects. The fourth component is a urethane-zinc borate composite vaporizing agent (an existing composite flame retardant material). At room temperature, it is a solid particle, non-hygroscopic, and chemically stable. At temperatures ≥280℃, it thermally decomposes and vaporizes, releasing a mixed gas consisting of CO2, N2, and borate vapor, with a density 1 times that of air.With a strength 31 times greater, it can adhere tightly to complex areas such as cable bends and joints. It extinguishes fires through a triple action of oxygen dilution, flame-retardant film formation, and heat absorption and cooling. The decomposition products are non-toxic gases, leaving only a small amount of easily cleaned inorganic powder. These materials are all products of existing mature technologies and can be directly loaded into a container around the cable. At high temperatures, they precisely vaporize to form an inert fire-extinguishing gas covering the cable's outer surface, achieving non-toxic and harmless cooling and fire-extinguishing protection. During application, the device uses two protective half-tubes 1 in conjunction with a hinged seat 2 and a hinged arm 3. In use, the two protective half-tubes 1 can be opened and closed by rotating the hinged arm 3 around the hinged seat 2. A mounting plate 4 then secures them to form a complete protective structure. Simultaneously, a fireproof device 6 is installed inside the protective half-tubes 1 to provide fire protection for the cable. The heat-conducting seat 61 in the fireproof device 6 is fixed inside the protective half-tubes 1. On one side, the mounting module 62 is mounted on the heat-conducting base 61, and the heat-conducting tank 63 is mounted inside the mounting module 62. Solid phase change material is placed inside the heat-conducting tank 63. The end of the mounting module 62 is inserted into a narrow inlet pipe 64 sealed within the heat-conducting tank 63, thus achieving sealed storage of the solid phase change material. When the cable catches fire and generates high temperatures, the heat is transferred to the heat-conducting tank 63. If the solid phase change material is a microcapsule-coated perfluorohexanone composite material, the microcapsule shell melts and ruptures under temperatures ≥150℃, releasing perfluorohexanone which instantly vaporizes under heat from a fire source ≥300℃, expanding in volume to form a substance with a density of 9.9 times that of air. An inert gas with a density several times that of nitrogen can be used. This gas quickly sinks and adheres to the cable surface to form a flame-retardant layer. It extinguishes fires by absorbing heat, cooling the cable, capturing combustion free radicals, and isolating oxygen. The gaseous products are residue-free and non-corrosive. If melamine cyanurate is used, it decomposes and sublimates at approximately 270°C, producing an inert mixture of nitrogen, a small amount of carbon dioxide, and cyanuric acid derivatives. This mixture, slightly denser than air, forms an air curtain around the cable, diluting oxygen and lowering cable temperature. The smoke toxicity is at ZA1 level, and it will not damage the cable insulation. If a solid-state adsorption and storage system using IG541 mixed gas is used, when the temperature rises to ≥180°C, the adsorbent material desorbs and releases an IG541 mixed gas consisting of 52% nitrogen, 40% argon, and 8% carbon dioxide. The gas has a relative molecular mass of approximately 31 g / mol and a density slightly greater than air. This gas can uniformly cover the cable surface, reducing the oxygen concentration to 12.5%. The following process blocks combustion and simultaneously vaporizes to absorb heat and lower the ambient temperature. The gas itself is a natural atmospheric component with no toxic side effects. If a carbamate-zinc borate composite vaporizing agent is used, it will thermally decompose and vaporize at a high temperature of ≥280℃, releasing a mixed gas composed of CO2, N2, and borate vapor, with a density of 1 times that of air.31 times stronger, it can adhere tightly to complex parts such as cable bends and joints, extinguishing fires through a triple action of diluting oxygen, forming a flame-retardant film, and absorbing heat for cooling. The decomposition products are free of toxic gases, leaving only a small amount of easily cleaned inorganic powder. These solid phase change materials are all products of existing mature technologies and can be directly loaded into the heat-conducting canister 63. At high temperatures, they precisely vaporize to form an inert fire-extinguishing gas that covers the outer surface of the cable, achieving non-toxic and harmless cooling and fire-extinguishing protection. This effectively ensures the safety of the cable in fire situations, preventing functional failure due to fire damage. Furthermore, the selection of different solid phase change materials can adapt to different fire temperature scenarios, improving the applicability and reliability of the device.

[0019] Please refer to Figures 1-9The installation module 62 includes a movable mechanism 621, an adjusting mechanism 622, an elastic sealing mechanism 623, a limiting seat 624, and a limiting shaft 625. The movable mechanism 621 is installed with screws at one end of the heat-conducting base 61 away from the protective half-pipe 1. The adjusting mechanism 622 is fixedly connected to the end of the movable mechanism 621 away from the heat-conducting base 61 and is used to adjust the movement of the movable mechanism 621. The elastic sealing mechanism 623 is fixedly connected to the moving end of the adjusting mechanism 622 away from the protective half-pipe 1, and the sealing end of the elastic sealing mechanism 623 is inserted into the narrow inlet pipe 64 of the tank to seal it. The limiting shaft 625 is inserted into the limiting seat 624. Internally, the limiting bracket 624 is screwed onto the end of the heat-conducting base 61 away from the movable mechanism 621, and the limiting shaft 625 is welded to the rear end of the heat-conducting tank 63. During application, this device, through the installation module 62 including the movable mechanism 621, adjustment mechanism 622, elastic sealing mechanism 623, limiting bracket 624, and limiting shaft 625, allows for stable installation and sealing of the heat-conducting tank 63 through the cooperation of these components. In use, the limiting shaft 625 is inserted into the limiting bracket 624, positioning the rear end of the heat-conducting tank 63 and preventing displacement during installation. Simultaneously, the movable mechanism 621 provides adjustment... Mechanism 622 and the flexible sealing mechanism 623 provide an installation base. Adjusting mechanism 622 can adjust the movement of movable mechanism 621, thereby moving the flexible sealing mechanism 623. When sealing the heat transfer tank 63 is required, adjusting mechanism 622 drives movable mechanism 621, causing the sealing end of the flexible sealing mechanism 623 to be inserted into the narrow inlet pipe 64 of the tank, thus blocking contact between the solid phase change material inside the heat transfer tank 63 and the outside environment, preventing the solid phase change material from getting damp or leaking, and ensuring its stability at room temperature. When disassembling the heat transfer tank 63 to replenish the solid phase change material is required, adjusting mechanism 622 reverses the adjustment of movable mechanism 621, causing... The sealing end of the elastic sealing mechanism 623 disengages from the narrow inlet pipe 64 of the tank, and the limiting pin 625 is then removed from the limiting pin seat 624, thus enabling the disassembly of the heat-conducting tank 63. The entire process requires no complicated operations and can be completed quickly. This design ensures the sealing of the heat-conducting tank 63 after installation, preventing problems with the solid phase change material in non-fire conditions. It also simplifies the disassembly and assembly process of the heat-conducting tank 63 through the cooperation of various components, facilitating the replenishment and maintenance of the solid phase change material in the future. At the same time, the functional division of each component is clear, and they can stably cooperate to realize the installation, sealing and disassembly of the heat-conducting tank 63, improving the reliability and convenience of using the installation module 62.

[0020] Please refer to Figures 5-9The movable mechanism 621 includes a fixed side plate 6211, which is screwed onto the side of the heat-conducting base 61 away from the protective half-tube 1. A guide rail 6212 is welded onto the side of the fixed side plate 6211 away from the heat-conducting base 61. A slider 6213 is slidably connected inside the guide rail 6212. The adjusting mechanism 622 includes a side plate 6221, which is integrally formed at the end of the fixed side plate 6211 away from the limiting seat 624. A lead screw 6222 is rotatably connected to the middle of the rear side of the side plate 6221. A movable block 6223 is threaded onto the outer surface of the lead screw 6222. The movable block 6223 is connected to the slider 6213 on the side near the protective half-tube 1. An elastic sealing mechanism 623 is fixedly connected to the movable block 6223. On the side of the side plate 6221 away from the lead screw 6222, near the limiting seat 624, an adjustment component 6224 is provided. The adjustment component 6224 includes a mounting plate 62241, which is fixedly connected to the side of the side plate 6221 away from the heat transfer tank 63. A manual adjustment wheel 62242 is rotatably connected to the middle of the side of the mounting plate 62241 away from the heat transfer tank 63. The rear side of the manual adjustment wheel 62242 is connected to the front end of the lead screw 6222 via a coupling. An anti-slip screw 62243 is threadedly connected to one side of the manual adjustment wheel 62242, and the end of the anti-slip screw 62243 passes through the manual adjustment wheel 62242. An anti-slip screw locking hole 62 is provided on the side of the mounting plate 62241 away from the side plate 6221. 244. The rear end of the anti-slip screw 62243 is inserted into the anti-slip screw clip 62244. The anti-slip screw 62243 is a hand-tightening screw. Anti-slip arc grooves are evenly spaced on the outer surface of the handle of the anti-slip screw 62243. During the application of this device, the movable mechanism 621 includes a fixed side plate 6211, a guide rail 6212, and a slider 6213; the adjustment mechanism 622 includes a side plate 6221, a screw 6222, and a movable block 6223; and the adjustment assembly 6224 includes a mounting plate 62241, a hand-operated adjustment wheel 62242, and the anti-slip screw 62243. This allows for precise movement and positioning of the elastic sealing mechanism 623 through the cooperation of various components. When it is necessary to adjust the elastic sealing mechanism... When position 623 is sealed or disconnected from the narrow inlet pipe 64 of the tank, the manual adjustment wheel 62242 is rotated. The manual adjustment wheel 62242 drives the lead screw 6222 to rotate on the side plate 6221 through the coupling. Because the lead screw 6222 is threadedly connected to the movable block 6223, and the side of the movable block 6223 near the protective half-pipe 1 is connected to the slider 6213, the slider 6213 can slide inside the guide rail 6212. The rotation of the lead screw 6222 will drive the movable block 6223 to move along the guide rail 6212. The elastic sealing mechanism 623 is fixedly connected to the movable block 6223. The movement of the movable block 6223 will synchronously drive the elastic sealing mechanism 623 to move, realizing the position adjustment of the sealing end. When the elastic sealing mechanism 623 is adjusted to the required position...Tighten the hand-operated anti-slip screw 62243 on one side of the manual adjustment wheel 62242, so that the rear end of the anti-slip screw 62243 is inserted into the anti-slip screw clip hole 62244 of the mounting plate 62241. This fixes the position of the manual adjustment wheel 62242 and the screw 6222, preventing the screw 6222 from rotating due to external force and causing the elastic sealing mechanism 623 to shift. The anti-slip arc groove on the outer surface of the handle of the anti-slip screw 62243 increases the friction between the hand and the handle, making it easier for the operator to tighten the screw. This design, through the cooperation of the manual adjustment wheel 62242 and the screw 6222, can precisely control the elastic sealing mechanism 623. The movement distance ensures precise alignment between the sealing end and the narrow inlet pipe 64 of the tank, improving sealing reliability. Simultaneously, the cooperation of the anti-slip screw 62243 and the anti-slip screw clip 62244 securely locks the adjusted position, preventing loosening during use. The cooperation between the slider 6213 and the guide rail 6212 ensures the stability of the moving block 6223 during movement, preventing displacement of the moving block 6223 from affecting the positional accuracy of the elastic sealing mechanism 623. The clear division of labor and smooth cooperation of all components facilitates operator adjustments and ensures structural stability after adjustment, improving the ease of use and reliability of the device.

[0021] Please refer to Figures 7-9The elastic sealing mechanism 623 includes a telescopic spring 6231, which is fixedly connected to the movable block 6223 on the side near the heat-conducting tank 63. A connecting plate 6232 is fixedly connected to the end of the telescopic spring 6231. A sealing piston rod 6233 is fixedly connected to the side of the connecting plate 6232 away from the telescopic spring 6231. The sealing piston rod 6233 is sealed and inserted into the narrow inlet pipe 64 of the tank. A support guide shaft 6234 is fixedly connected to the side of the connecting plate 6232 near the telescopic spring 6231 in a ring at equal intervals. The end of the support guide shaft 6234 passes through the movable block 6223. A heat-resistant sealing ring 6235 is fixedly connected to the outer surface of the sealing piston rod 6233. The heat-resistant sealing ring 6235 seals the sealing piston rod 6233. At the gap between the plug rod 6233 and the narrow inlet pipe 64 of the tank, the movable block 6223 and the support guide shaft 6234 are slidably connected. During installation, the adjusting assembly 6224 adjusts the screw 6222 to rotate, causing the movable block 6223 to move backward. As the movable block 6223 moves backward, it causes the telescopic spring 6231 to drive the sealing piston rod 6233 to be inserted into the narrow inlet pipe 64 of the tank. At this time, the sealing piston rod 6233 will seal the narrow inlet pipe 64 of the tank. During normal use, the phase change material inside the heat-conducting tank 63 is in a stable state. When a fire occurs, the heat-conducting tank 63 and the heat-conducting seat 61 are affected by high temperature, which is transferred to the phase change material inside the heat-conducting tank 63. At this time, the phase change material vaporizes to form an inert gas. Simultaneously, the internal pressure of the heat-conducting tank 63 increases, allowing the high-pressure gas to push open the sealing piston rod 6233. The sealing piston rod 6233 overcomes the pressure of the telescopic spring 6231 and moves outward. When the sealing piston rod 6233 disengages from the narrow inlet pipe 64 of the tank, the inert gas is released. At this point, the inert gas is non-flammable and its gravity is greater than air, causing it to gradually adhere to the outer surface of the cable, thus forming an inert gas layer and achieving a flame-retardant effect. Furthermore, during use, when the fire extinguishes and the temperature drops, the telescopic spring 6231 loses its high pressure and returns to its original compressed state, allowing the sealing piston rod 6233 to re-insert into the narrow inlet pipe 64 of the tank for resealing. If the phase change material inside the high-pressure tank is not completely consumed at this time, it can be reserved for subsequent fire prevention work. When completely consumed, simply loosen the bolts at mounting plate 4. This allows the two half-protective tubes to be flipped over. The adjusting assembly 6224 then drives the lead screw 6222 to move the movable block 6223 outwards. Guided by the slider 6213, the movable block 6223 slides stably, pulling the sealing piston rod 6233 out of the narrow inlet pipe 64 of the tank. As the sealing piston rod 6233 moves outwards, the heat-conducting tank 63 loses the pressure of the telescopic spring 6231 and can move towards the adjusting mechanism 622. At this point, the limiting pin 625 disengages from the limiting seat 624, allowing the heat-conducting tank 63 to be removed. Then, the phase change material is replenished, and the limiting pin 625 on the rear side of the heat-conducting tank 63 is inserted back into the limiting seat 624.The adjusting assembly 6224 drives the lead screw 6222 to move the movable block 6223, re-inserting the sealing piston rod 6233 into the narrow inlet pipe 64 of the tank for sealing. At this time, the movable block 6223 and the sealing piston rod 6233 limit the other end of the heat-conducting tank 63, thus completing the installation. During the application of this device, the elastic sealing mechanism 623, including the telescopic spring 6231, connecting plate 6232, sealing piston rod 6233, support guide shaft 6234, and heat-resistant sealing ring 6235, enables the sealing of the heat-conducting tank 63 and the release of gas in case of fire through the cooperation of various components. During installation, the adjusting assembly 6224 adjusts the lead screw 6222 to rotate, causing the movable block 6223 to move backward. The backward movement of the movable block 6223 causes the telescopic spring 6231 to drive the sealing piston rod 6233 into the narrow inlet pipe 64 of the tank. At this time, the heat-resistant sealing ring 6235 on the outer surface of the sealing piston rod 6233 seals the gap between the sealing piston rod 6233 and the narrow inlet pipe 64 of the tank, thus achieving a seal on the narrow inlet pipe 64 of the tank. The support guide shaft 6234 provides guidance when the connecting plate 6232 moves, ensuring the precise insertion of the sealing piston rod 6233. The sliding connection between the movable block 6223 and the support guide shaft 6234 further ensures the stability of movement. During normal use, the phase change material inside the heat-conducting tank 63 remains stable in a sealed state. In the event of a fire, the heat-conducting tank 63 and the heat-conducting base 61 are affected by high temperatures. Heat is transferred to the phase change material inside the heat-conducting tank 63, where it vaporizes to form an inert gas. This increases the internal pressure of the heat-conducting tank 63, causing the high-pressure gas to push open the sealing piston rod 6233. The sealing piston rod 6233 overcomes the pressure of the extension spring 6231 and moves outward. When the sealing piston rod 6233 disengages from the narrow inlet pipe 64 of the tank, the inert gas is released. Because the inert gas is non-flammable and its gravity is greater than air, it gradually adheres to the outer surface of the cable, forming an inert gas layer, thus achieving a flame-retardant effect. During use, after the fire is extinguished and the temperature drops, the extension spring 6231 loses its high pressure and returns to its original position, re-energizing the sealing piston rod 6233 to re-seal the narrow inlet pipe 64. If the phase change material inside the heat-conducting tank 63... If the material is not completely consumed, it can be reserved for subsequent fire prevention work. If the phase change material is completely consumed, simply loosen the bolts at mounting plate 4, flip the two protective half-pipes 1, and then use the adjusting component 6224 to drive the lead screw 6222 to move the movable block 6223 outward. The movable block 6223 slides stably under the guidance of the slider 6213, pulling the sealing piston rod 6233 out of the narrow inlet pipe 64 of the tank. As the sealing piston rod 6233 moves outward, the heat transfer tank 63 loses the pressure of the telescopic spring 6231, allowing the heat transfer tank 63 to be moved towards the adjusting mechanism 622, causing the limiting pin 625 to disengage from the limiting seat 624. Remove the heat transfer tank 63 to replenish the phase change material, and then insert the limiting pin 625 on the rear side of the heat transfer tank 63 into the limiting seat 624.The adjusting component 6224 drives the lead screw 6222, which in turn drives the movable block 6223 to re-insert the sealing piston rod 6233 into the narrow inlet pipe 64 of the tank for sealing. The movable block 6223 and the sealing piston rod 6233 limit the other end of the heat-conducting tank 63, completing the installation. This design, through the elastic action of the telescopic spring 6231, achieves reliable sealing under normal conditions and can automatically open to release extinguishing gas by air pressure in case of fire. After a fire, it can automatically reset the seal, ensuring the continued use of unconsumed phase change materials. Furthermore, the disassembly and assembly process requires no complex tools, only the adjusting component 6224 and mechanical operation, facilitating the replenishment of phase change materials and improving the practicality and maintenance convenience of the device. The heat-resistant sealing ring 6235 further enhances the sealing reliability, preventing leakage or moisture absorption of the phase change material under normal conditions.

[0022] Please refer to Figures 1-4The mounting plates 4 on the two protective half-pipes 1 are connected by bolts. The two protective half-pipes 1 are closed to form a CPVC cable protection pipe. A cable support module 5 is fixedly installed on the inner side of the protective half-pipe 1. The inner sides of the two cable support modules 5 are closely connected to each other. The heat conduction tank 63 is set as an aluminum alloy metal heat conduction tank 63. The heat conduction seat 61 is also set as an aluminum alloy seat. The cable support module 5 includes an outer connecting frame 51. There are two outer connecting frames 51, both of which are fixedly connected to the inner side of the protective half-pipe 1. The outer connecting frames 51 are set at the gaps of each fireproof device 6. Cable clamps 52 are fixedly connected to the inner side of the outer connecting frame 51 in a linear arrangement at equal intervals. The inner side of the cable clamp 52 is provided with an arc-shaped groove 53. The arc-shaped groove 53 between the inner sides of the two cable clamps 52 is closed to form a cavity for accommodating and positioning the cable when it is installed.During application, the external connecting frame 51 and cable clamp 52 can support the installed and protected cables, ensuring their stable installation in the inner middle of the CPVC cable protection pipe. Even if there is water accumulation inside the CPVC cable protection pipe, the cables will be installed on the outside, preventing them from being soaked and providing good moisture protection. During application, this device uses two protective half-pipes 1 with mounting plates 4, bolts, and cable support modules 5 inside the protective half-pipes 1. The heat-conducting tank 63 and heat-conducting base 61 are made of aluminum alloy, enabling the construction of a complete protection structure, stable cable installation, and efficient heat transfer. During use, the mounting plates on the two protective half-pipes 1... 4. Two protective half-pipes 1 are connected by bolts to form a CPVC cable protection pipe, providing outer protection for the internal cables and fire protection devices 6. A cable support module 5 is fixedly installed inside the protective half-pipe 1, comprising two external connecting frames 51 and multiple cable clamps 52. The external connecting frames 51 are positioned at the gaps between the various fire protection devices 6. The cable clamps 52 are linearly arranged at equal intervals inside the external connecting frames 51. Arc-shaped grooves 53 are formed inside the cable clamps 52. The arc-shaped grooves 53 between the inner sides of two cable clamps 52 close together to form a cavity for accommodating and positioning the cables during installation. During application, the external connecting frames 51 and cable clamps 52 can support and stably support the protected cables within the CPVC pipe. Even if there is water accumulation inside the CPVC cable protection pipe, the cable will be laid on the outside to prevent it from being soaked, thus providing good moisture protection. Meanwhile, the heat-conducting tank 63 and heat-conducting base 61 are made of aluminum alloy, which has excellent thermal conductivity. In the event of a fire, the external high temperature can be quickly transferred to the aluminum alloy heat-conducting tank 63 through the heat-conducting base 61, and then the heat-conducting tank 63 transfers the heat to the internal phase change material, ensuring that the phase change material can vaporize in time to generate inert gas, guaranteeing rapid activation of the fire extinguishing function. This design achieves basic protection through the closed construction of the protective half-pipe 1, solves the cable moisture problem with the cable support module 5, and improves fire response efficiency by utilizing the thermal conductivity of aluminum alloy. The complementary functions of each part provide comprehensive and reliable protection for the cable.

[0023] The implementation principle of the moisture-proof and fire-resistant CPVC cable protection pipe in this application embodiment is as follows: During the installation stage, the cable to be protected is first placed in the cable support module 5 inside one of the protective half-pipes 1. The cable support module 5 has a cable clamp 52 inside the outer connecting frame 51. The cable clamp 52 has an arc-shaped groove 53. After the two protective half-pipes 1 are closed, the arc-shaped grooves 53 of the cable clamps 52 on both sides form a cavity to accommodate the cable. The cable is laid in the cavity, realizing the stable laying of the cable in the middle of the inner side of the protective pipe. Then, the two protective half-pipes 1 are flipped and closed by the hinge seat 2 and hinge arm 3 on one side of the protective half-pipe 1. After closing, the mounting plate 4 on the side of the two protective half-pipes 1 away from the hinge structure is fixed by bolts to form a complete CPVC. Next, install the heat-conducting tank 63 in the fireproof device 6. Insert the limiting pin 625 at the rear end of the heat-conducting tank 63 containing the solid phase change material into the limiting pin 624 on the heat-conducting base 61. Then operate the adjusting component 6224 and rotate the manual adjusting wheel 62242 on the mounting plate 62241. The manual adjusting wheel 62242 drives the lead screw 6222 to rotate through the coupling. The lead screw 6222 is threadedly connected to the movable block 6223. The side of the movable block 6223 near the protective half-pipe 1 is connected to the slider 6213 of the movable mechanism 621. The slider 6213 can slide within the guide rail 6212 of the fixed side plate 6211. The rotation of the lead screw 6222 drives the movable block 6223 to move the heat-conducting tank 63. When the movable block 6223 moves, one side of its The elastic sealing mechanism 623 moves synchronously, and the telescopic spring 6231 of the elastic sealing mechanism 623 pushes the connecting plate 6232. The connecting plate 6232 drives the sealing piston rod 6233 to be inserted into the narrow inlet pipe 64 of the tank. At this time, the elastic force of the telescopic spring 6231 can tightly push the sealing piston rod 6233. In conjunction with the heat-resistant sealing ring 6235 on the outer surface of the sealing piston rod 6233, the gap is filled, and the heat-conducting tank 63 is reliably sealed quickly to avoid leakage of solid phase change material. Finally, the anti-slip screw 62243 on one side of the manual adjustment wheel 62242 is turned so that its end is inserted into the anti-slip screw hole 62244 of the mounting plate 62241 to fix the position of the manual adjustment wheel 62242 and the screw 6222, and prevent the movable block 6223 from moving and causing the seal to fail. During the routine protection phase, the protective half-pipe 1 serves as the outer protective structure, continuously resisting mechanical damage such as external compression and collision, providing a stable external protective environment for the cable. The cable support module 5 continuously supports the cable in the middle of the inner side of the protective pipe, preventing the cable from contacting any water accumulation inside the protective pipe and thus providing moisture protection. The heat-conducting tank 63 of the fireproof device 6 remains sealed under the sealing action of the telescopic spring 6231 and the sealing piston rod 6233. The solid phase change material inside remains stable at room temperature, without volatilization or leakage. The heat-conducting seat 61 and the heat-conducting tank 63 receive ambient temperature changes in real time, ensuring a rapid response in the event of a fire. No manual intervention is required during the entire routine protection phase, and the device can remain in a stable standby state for a long time. During the fire response phase, when the cable itself ages or overheats, causing localized overheating and fire, or when a fire occurs outside the protective conduit and the high temperature spreads inward, the high temperature is first transferred to the heat-conducting seat 61 and heat-conducting canister 63 inside the protective half-pipe 1. After receiving the temperature, the heat-conducting canister 63 conducts the heat to the solid phase change material inside. When the temperature reaches the corresponding threshold, the solid phase change material vaporizes. After the solid phase change material vaporizes, the internal gas pressure of the heat-conducting canister 63 increases sharply. The high-pressure gas generates an outward thrust on the sealing piston rod 6233. When the thrust is greater than the extension spring... When the spring force of 6231 is applied, the sealing piston rod 6233 moves outward against the spring pressure, and the heat-resistant sealing ring 6235 disengages from the narrow inlet pipe 64 of the tank, releasing the seal. At this time, the inert gas formed by vaporization is discharged from the narrow inlet pipe 64 of the tank. Since the gas density is greater than that of air, the gas can sink along the surface of the cable and gradually adhere to the outer surface of the cable, forming an inert gas layer. This gas layer extinguishes the fire through the triple action of heat absorption and cooling, oxygen isolation, and interruption of the combustion chain, avoiding the serious consequences of cable burning, power or communication interruption, and fully demonstrating the good fire prevention effect of this device. During the post-fire maintenance phase, after the fire ends and the ambient temperature gradually decreases, the temperatures of the heat-conducting tank 63 and the heat-conducting seat 61 decrease synchronously. The internal air pressure of the heat-conducting tank 63 returns to normal, and the telescopic spring 6231, losing the thrust of the high-pressure gas, automatically resets from its compressed state. This pushes the connecting plate 6232 and the sealing piston rod 6233 back into the narrow inlet pipe 64 of the tank, re-sealing the heat-conducting tank 63. This re-sealing reset is completed without manual operation, preparing for subsequent reuse. If the solid phase change material inside the heat-conducting tank 63 is not completely consumed, the device can be directly restored to standby status for subsequent fire prevention work. If the solid phase change material is completely consumed, maintenance personnel only need to remove the bolts at the mounting plate 4 of the protective half-pipe 1, flip and open the two protective half-pipes 1, loosen the anti-slip screw 62243 to disengage it from the anti-slip screw clip 62244, and rotate the manual adjustment wheel 62242 in the opposite direction, causing the screw 6222 to rotate and move the movable block 6223. Moving away from the heat-conducting tank 63, the telescopic spring 6231 naturally extends with the movement of the movable block 6223, and the sealing piston rod 6233 disengages from the narrow inlet pipe 64 of the tank. Without additional disassembly of complex components, the heat-conducting tank 63 can be moved towards the adjusting mechanism 622, causing the limiting pin 625 to disengage from the limiting seat 624. The heat-conducting tank 63 can then be removed to replenish the solid phase change material. After replenishment, the installation steps can be repeated to re-secure the heat-conducting tank 63. The entire disassembly and assembly process is convenient and efficient due to the design of the telescopic spring 6231, significantly simplifying the maintenance process. Furthermore, the fire-resistant mechanism of this device only requires replenishment of solid phase change material for reuse, eliminating the need to replace the entire fire-resistant device 6. All structures are conventional components, with a simple design, reducing initial operating costs and minimizing subsequent maintenance expenses, further controlling maintenance costs. Combined with its good fire-resistant effect, it fully meets the actual needs of cable protection. By setting up CPVC... The protective half-pipe 1, made of a specific material, avoids the problem of moisture and corrosion associated with traditional metal protective pipes during use, thus improving the device's moisture resistance. The cable support module 5 ensures the cable is stably mounted inside the protective pipe, preventing short circuits due to water accumulation. The fire-resistant device 6, composed of a heat-conducting base 61, a heat-conducting tank 63, and a solid phase change material, rapidly triggers a vaporization reaction and forms an inert gas layer in the event of a fire, extinguishing the fire risk at its source and compensating for the deficiencies in fire protection in existing technologies. The adjustment component 6224 and the elastic sealing mechanism 623 facilitate the sealing and disassembly of the heat transfer tank 63, thereby reducing maintenance difficulty. The limit seat 624 and the limit shaft 625 enable faster installation and positioning of the heat transfer tank 63, thereby simplifying the installation process. The hinge seat 2 and the hinge arm 3 make the opening and closing of the protective half-pipe 1 more convenient, thereby improving the efficiency of cable placement and maintenance. The mounting plate 4 and bolts ensure that the structure is stable after the two protective half-pipes 1 are closed, thereby enhancing the device's ability to resist external mechanical damage.The entire device requires no manual intervention during daily use and can be maintained without the need for specialized technicians. Furthermore, the heat transfer tank 63 can be disassembled and replaced separately, eliminating the need to replace the entire fireproof device 6, significantly reducing subsequent maintenance costs and material waste.

[0024] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A moisture-proof and fire-resistant CPVC cable protection pipe, characterized in that; The system includes a protective half-tube (1), which is configured as two. One protective half-tube (1) is linearly arranged at equal intervals on one side and is fitted with a hinge seat (2) by screws. The other protective half-tube (1) is linearly arranged on the side near the hinge seat (2) and is fitted with a hinge arm (3) by screws. The outer end of the hinge arm (3) is hinged to the inner side of the hinge seat (2). Mounting plates (4) are fixedly installed on both ends of the protective half-tube (1) away from the hinge arm (3) and the hinge seat (2). Fireproof devices (6) are installed on the inner side of the protective half-tube (1) at equal intervals by screws. The fireproof device (6) includes a heat-conducting seat (61), which is arranged at equal intervals along the extension direction of the protective half-tube (1) and fixedly connected to the inner side of the protective half-tube (1). An installation module (62) is fixedly installed on the side of the heat-conducting seat (61) away from the protective half-tube (1). A heat-conducting tank (63) is installed on the inner side of the installation module (62). A narrow inlet pipe (64) is fixedly connected to the front end of the heat-conducting tank (63). A solid phase change material is placed inside the heat-conducting tank (63). The end of the installation module (62) is inserted and sealed inside the narrow inlet pipe (64) of the heat-conducting tank (63).

2. The moisture-proof and fire-resistant CPVC cable protection pipe according to claim 1, characterized in that: The installation module (62) includes a movable mechanism (621), an adjusting mechanism (622), an elastic sealing mechanism (623), a limiting seat (624), and a limiting shaft (625). The movable mechanism (621) is screwed to one end of the heat-conducting base (61) away from the protective half-tube (1). The adjusting mechanism (622) is fixedly connected to the end of the movable mechanism (621) away from the heat-conducting base (61). The adjusting mechanism (622) is used to adjust the movement of the movable mechanism (621). The elastic sealing mechanism (623) is fixedly connected to the side of the moving end of the adjusting mechanism (622) away from the protective half-pipe (1). The sealing end of the elastic sealing mechanism (623) is inserted into the narrow inlet pipe (64) of the tank body and sealed. The limiting pin (625) is inserted into the limiting pin seat (624). The limiting pin seat (624) is installed by screws at the end of the heat-conducting seat (61) away from the moving mechanism (621). The limiting pin (625) is welded to the rear end of the heat-conducting tank body (63).

3. The moisture-proof and fire-resistant CPVC cable protection pipe according to claim 2, characterized in that: The active mechanism (621) includes a fixed side plate (6211), which is installed on the side of the heat-conducting seat (61) away from the protective half tube (1) by screws. A guide rail (6212) is welded and installed on the side of the fixed side plate (6211) away from the heat-conducting seat (61). A slider (6213) is slidably connected inside the guide rail (6212).

4. The moisture-proof and fire-resistant CPVC cable protection pipe according to claim 3, characterized in that: The adjustment mechanism (622) includes a side plate (6221), which is integrally formed and disposed at the end of the fixed side plate (6211) away from the limiting seat (624). A lead screw (6222) is rotatably connected to the middle of the rear side of the side plate (6221). A movable block (6223) is threadedly connected to the outer surface of the lead screw (6222). The movable block (6223) is connected to the slider (6213) on the side near the protective half tube (1). The elastic sealing mechanism (623) is fixedly connected to the side of the movable block (6223) near the limiting seat (624). An adjustment component (6224) is provided on the side of the side plate (6221) away from the lead screw (6222).

5. A moisture-proof and fire-resistant CPVC cable protection pipe according to claim 4, characterized in that: The adjustment assembly (6224) includes a mounting plate (62241), which is fixedly connected to the side of the side plate (6221) away from the heat-conducting tank (63). A manual adjustment wheel (62242) is rotatably connected to the middle of the side of the mounting plate (62241) away from the heat-conducting tank (63). The rear side of the manual adjustment wheel (62242) is connected to the front end of the lead screw (6222) through a coupling. An anti-slip screw (62243) is threadedly connected to one side of the manual adjustment wheel (62242), and the end of the anti-slip screw (62243) passes through the manual adjustment wheel (62242).

6. The moisture-proof and fire-resistant CPVC cable protection pipe according to claim 5, characterized in that: The mounting plate (62241) has an anti-slip screw clip hole (62244) on the side away from the side plate (6221). The rear end of the anti-slip screw (62243) is inserted into the anti-slip screw clip hole (62244). The anti-slip screw (62243) is a hand-tightening screw. Anti-slip arc grooves are evenly spaced on the outer surface of the handle of the anti-slip screw (62243).

7. A moisture-proof and fire-resistant CPVC cable protection pipe according to claim 6, characterized in that: The elastic sealing mechanism (623) includes a telescopic spring (6231), which is fixedly connected to the side of the movable block (6223) near the heat-conducting tank (63). A connecting plate (6232) is fixedly connected to the end of the telescopic spring (6231), and a sealing piston rod (6233) is fixedly connected to the side of the connecting plate (6232) away from the telescopic spring (6231). The sealing piston rod (6233) is sealed and inserted into the narrow inlet pipe (64) of the tank.

8. A moisture-proof and fire-resistant CPVC cable protection pipe according to claim 7, characterized in that: The connecting plate (6232) is fixedly connected to the supporting guide shaft (6234) in a ring at equal intervals on the side near the telescopic spring (6231). The end of the supporting guide shaft (6234) passes through the movable block (6223). A heat-resistant sealing ring (6235) is fixedly connected to the outer surface of the sealing piston rod (6233). The heat-resistant sealing ring (6235) seals the gap between the sealing piston rod (6233) and the narrow inlet pipe (64) of the tank. The movable block (6223) and the supporting guide shaft (6234) are slidably connected to each other.

9. A moisture-proof and fire-resistant CPVC cable protection pipe according to claim 8, characterized in that: The mounting plates (4) on the two protective half-pipes (1) are connected by bolts. The two protective half-pipes (1) are closed to form a CPVC cable protection pipe. A cable support module (5) is fixedly installed on the inner side of the protective half-pipe (1). The inner sides of the two cable support modules (5) are connected to each other. The heat conduction tank (63) is set as an aluminum alloy metal heat conduction tank (63), and the heat conduction seat (61) is also set as an aluminum alloy seat.

10. A moisture-proof and fire-resistant CPVC cable protection pipe according to claim 9, characterized in that: The cable support module (5) includes an outer connecting frame (51). The outer connecting frame (51) is configured as two and is fixedly connected to the inner side of the protective half tube (1). The outer connecting frame (51) is set at the gap of each fireproof device (6). The inner side of the outer connecting frame (51) is linearly arranged with cable clamps (52) at equal intervals. The inner side of the cable clamp (52) is provided with an arc-shaped groove (53). The arc-shaped groove (53) between the inner sides of the two cable clamps (52) closes to form a cavity for accommodating and positioning the cable during installation.

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