Fireproof special cable and cable installation equipment

Abstract

The invention relates to the technical field of cables, and discloses a fire-resistant fireproof special cable and cable installation equipment, the fire-resistant fireproof special cable comprises an innermost layer of a cable core made by twisting a plurality of strands of high-precision pure copper, the cable core is externally wrapped by a ceramic-based composite belt made by folding along the longitudinal direction of the shaft part of the cable core, and the inner wall of the ceramic-based composite belt is tightly attached to the outer wall of the cable core. The ceramic-based composite belt is coated with a quartz fiber yarn braid layer, and the quartz fiber yarn braid layer is coated with a ceramic silicone rubber sheath. Through the arrangement of the cable core formed by twisting high-precision high-purity copper, the ceramic-based composite belt, the quartz fiber yarn braid layer and the ceramic silicone rubber sheath, the overall structure of the cable is suitable for producing and manufacturing hard and flexible cables of various sizes and areas, and the cable structure has the characteristics of high and low temperature resistance, corrosion resistance, high flame retardance, fire resistance, thermal shock resistance and bending resistance; meanwhile, due to the fact that the specific gravity of the overall structure of the cable is far small, operation of constructors is facilitated in the operation process, and the construction efficiency is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of cables, in particular to fire-resistant and fire-proof special cables and cable installation equipment. Background Art

[0002] High temperature resistant and fireproof cables for special equipment are mainly used in power transmission and control systems in special environments such as nuclear power equipment, large power distribution systems in buildings, petrochemical industry, ships, aircraft, rail transit, automobile manufacturing, etc., under high temperature, high pressure, flammable and explosive conditions.

[0003] Most fire-resistant cables on the market generally use mica tape wound on the conductor as a fire-resistant layer. Since mica itself is a high-hardness hexagonal sheet or plate, occasionally columnar, layered structure, monoclinic system, it is easy to break when bent. During the installation of the cable, it is easy to be damaged, resulting in the loss of fire resistance. There are also some mineral fire-resistant cables. Most of them use metal armor as the outer layer to protect the stability of the internal structure of the cable. However, the cable structure with metal armor is large in size and the unit cable itself is relatively heavy. During the operation, it is heavy and labor-intensive to operate, which is not convenient for construction operations.

[0004] To this end, the present invention provides fire-resistant and fire-proof special cables and cable installation equipment. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The present invention provides a fire-resistant and fire-proof special cable, comprising a cable core whose innermost layer is made of multiple strands of high-precision pure copper twisted together, the cable core is coated with a ceramic-based composite tape made by folding along the longitudinal axis of the cable core, and the inner wall of the ceramic-based composite tape is tightly fitted to the outer wall of the cable core, the ceramic-based composite tape is coated with a quartz fiber braided layer, and the quartz fiber braided layer is coated with a ceramicized silicone rubber sheath.

[0007] The beneficial effects of the present invention are as follows: the fire-resistant and fireproof special cable described in the present invention is provided with a cable core made of high-precision and high-purity copper twisting, a high-temperature resistant fiber-reinforced ceramic-based composite tape as an insulating layer, a quartz fiber filament braided layer formed by weaving high-purity quartz fiber filaments, and an outer sheath is formed by extruding a tear-resistant ceramic silicone rubber to form a ceramic silicone rubber sheath. The overall structure of the cable is suitable for the production of various hard and soft cables of various sizes. This cable structure has the characteristics of high and low temperature resistance, corrosion resistance, high flame retardancy and fire resistance, thermal shock resistance, and bending resistance, which effectively reduces the occurrence of cable breakage. At the same time, since the overall structure of the cable has a much smaller specific gravity, it is convenient for construction personnel to operate during operation, thereby accelerating construction efficiency.

[0008] Cable installation equipment, used for the above-mentioned fire-resistant and fire-proof special cables, includes a bracket assembly arranged outside the cable core, and three clamps equidistantly attached to the outer wall of the cable body are slidably connected to the bracket assembly, and the bracket assembly is provided with a driving mechanism for pushing the three clamps to move equidistantly, one of the clamps is provided with a rubber covering assembly, one of the clamps is equidistantly connected with a plurality of flexible scrapers, and one of the clamps is provided with a blowing assembly.

[0009] Specifically, after the damaged part of the cable is lifted and supported by the bracket assembly, the three clamps are pushed by the driving mechanism to position the outer wall of the cable. Then, the damaged part of the cable is coated with glue, scraped flat, and air-dried in a counterclockwise order through the glue coating assembly, flexible scraper and blowing assembly, thereby increasing the service life of the cable.

[0010] Preferably, the bracket assembly includes an annular plate, a base, a movable plate and a first cable groove; The outer wall of the cable body is provided with an annular plate, the bottom end of the annular plate is connected to a base, the inner wall of the annular plate is rotatably connected to a movable plate, and a first cable groove is provided inside the movable plate.

[0011] Specifically, by providing a bracket assembly, the damaged portion of the cable can be lifted and supported, making it easier for staff to repair the damaged portion of the cable in a timely manner.

[0012] Preferably, one end of each clamping plate away from the outer wall of the cable body is connected to a movable rod, each movable rod is slidably connected to the inside of the movable plate, and each clamping plate and the inside of the movable rod are hollow.

[0013] Preferably, the glue coating assembly includes a glue coating groove, a glue outlet, a first corrugated pipe, a glue storage tank, a water pump and a glue replenishing port; The outer wall of one of the splints is provided with three glue coating grooves, each of the glue coating grooves is provided with a glue outlet, each of the glue outlets is installed with a first one-way valve for preventing glue backflow, the inner wall of the movable rod connected to the splint is installed with a first bellows, the bottom end of the first bellows is connected with a glue storage tank, a water pump is installed inside the glue storage tank, a discharge pipe installed at the top of the water pump is connected with the bottom end of the first bellows, and a glue filling port is provided on the glue storage tank.

[0014] Specifically, the glue in the glue storage tank is extracted by a water pump and enters the first corrugated tube, and the glue enters the splint through the movable rod until it flows out through the glue outlet. Under the action of the first one-way valve inside the glue outlet, the glue can be prevented from flowing back into the splint, and the squeezed glue is coated on the outer wall of the cable core along the groove of the glue coating groove, so as to repair the damaged part of the outer wall of the cable core. When the glue in the glue storage tank is insufficient, glue can be added to the glue storage tank by opening the plug inside the glue filling port.

[0015] Preferably, the blowing assembly comprises a second bellows, a hot air blower, an air outlet and a partition plate; The inner wall of one of the movable rods is connected to a second bellows, a hot air blower is installed at the other end of the second bellows, the outer wall of the hot air blower is installed on the outer wall of the movable plate, and the inside of the splint to which the movable rod is connected is provided with a plurality of air outlets at equal intervals, each of the air outlets is provided with a plurality of second one-way valves for preventing air from backflow, and the outer wall of the splint is connected to two partition plates.

[0016] Specifically, after the flexible scraper has scraped the glue flat, when the next clamping plate rotates to the area where the glue is scraped flat, the hot air blower is turned on to supply air to the inside of the second corrugated tube. The airflow enters the inside of the clamping plate along the movable rod and is then ejected through the air outlet, thereby air-drying the scraped glue. By providing a spacer, the clamping plate can be kept at a certain distance from the outer wall of the cable core to avoid direct contact of the glue on the surface of the clamping plate, thereby maintaining the airflow.

[0017] Preferably, the driving mechanism comprises a slide slot, a limiting rod, a limiting plate, a second cable slot, a limiting slot and a driving assembly; The movable plate has three equidistant sliding grooves for sliding of multiple movable rods, the outer wall of each movable rod is connected to a limiting rod, the outer wall of the movable plate is rotatably connected to a limiting plate, a second cable groove is provided inside the limiting plate, the limit plate has three equidistant limiting grooves, the outer wall of each limiting rod is slidably connected to the inside of the limiting groove, and the outer wall of the movable plate is provided with a driving component for pushing multiple movable rods to move synchronously.

[0018] Specifically, by driving the limit plate to rotate, the limit slot rotates synchronously, thereby driving the limit rod inside the limit slot to slide, and the limit rod drives the movable rod to slide inside the slide slot, so that the three clamping plates move synchronously until they fit the outer wall of the cable core, thereby positioning the cable core, and at the same time, the three clamping plates inside the movable plate can position cables of different diameters.

[0019] Preferably, the drive assembly comprises a worm gear, a side frame, a first servo motor and a worm; A worm wheel is installed on the side wall of the limiting plate, and a side frame is connected to the outer wall of the movable plate. A first servo motor is installed on the bottom end of the side frame. A worm is sleeved on the output end of the first servo motor. The top end of the worm is rotatably connected to the side frame, and the outer wall of the worm wheel is meshed with the worm.

[0020] Specifically, the worm is driven to rotate by the first servo motor, so that the worm drives the worm wheel to rotate, and the worm wheel drives the limit plate to rotate, so that the limit rod is displaced when the limit slot moves.

[0021] Preferably, the side wall of the movable plate is connected to a driven wheel, the inner wall of the annular plate is mounted with a second servo motor, the output end of the second servo motor is sleeved with a driving rod, the side wall of the driving rod is connected to a driving wheel, and the outer wall of the driving wheel is meshed with the driven wheel.

[0022] Specifically, the driving rod is driven to rotate by the second servo motor, thereby driving the driving wheel to drive the movable plate connected to the driven wheel to rotate on the inner wall of the annular plate, and then driving the three clamping plates to rotate counterclockwise, so that the damaged parts of the outer wall of the cable core are coated with glue, scraped flat with glue, and air-dried with glue in turn.

[0023] Preferably, the top of the base is connected to two symmetrically arranged vertical poles, the top of each vertical pole is connected to a guide plate, and the inner wall of each guide plate is in contact with the outer wall of the cable body.

[0024] Specifically, by providing two guide plates, the front and rear ends of the damaged portion of the cable core can be lifted and guided, thereby preventing the damaged portion of the cable core from being excessively bent during repair, thereby playing a protective role. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a stereogram of an embodiment of the present invention; Figure 2 is a three-dimensional diagram from another angle of an embodiment of the present invention; Figure 3 is a cross-sectional schematic diagram of the cable core of the present invention; Figure 4 It is a stereoscopic diagram of the clamping plate, movable rod, rubber coating assembly, flexible scraper and blowing assembly of the present invention; Figure 5 It is a partial schematic diagram of the three-dimensional structure section of the splint, movable rod and rubber-covered assembly of the present invention; Figure 6 It is a partial schematic diagram of the three-dimensional structure section of the clamping plate, the movable rod and the blowing assembly of the present invention; Figure 7 is a perspective view of the driving mechanism of the present invention; Figure 8 It is a partial schematic diagram of the three-dimensional structural cross section of the movable panel of the present invention; Fig. 9 It is a stereoscopic diagram of the driven wheel, the second servo motor, the driving rod and the driving wheel of the present invention.

[0026] Description of reference numerals: 1. Cable core; 101. Ceramic-based composite tape; 102. Quartz fiber braided layer; 103. Ceramic silicone rubber sheath; 2. Bracket assembly; 201. Ring plate; 202. Base; 203. Movable plate; 204. First cable trough; 3. splint; 301. movable rod; 4. Glue coating assembly; 401. Glue coating tank; 402. Glue outlet; 403. First corrugated pipe; 404. Glue storage tank; 405. Water pump; 406. Glue filling port; 5. Flexible scraper; 6. Blowing assembly; 601. Second bellows; 602. Hot air blower; 603. Air outlet; 604. Partition plate; 7. Driving mechanism; 701. Slide; 702. Limit rod; 703. Limit plate; 704. Second cable trough; 705. Limit groove; 706. Driving assembly; 7061. Worm gear; 7062. Side frame; 7063. First servo motor; 7064. Worm; 8. driven wheel; 801. second servo motor; 802. driving rod; 803. driving wheel; 9. Vertical pole; 901. Guide plate. DETAILED DESCRIPTION

[0027] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that the discussion of these embodiments is only to enable those skilled in the art to better understand and implement the subject matter described herein, and the functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the contents of this specification. Each example may omit, replace or add various processes or components as needed. In addition, the features described relative to some examples may also be combined in other examples.

[0028] Embodiment 1 like Figures 1 to 9 Please refer to Figure 3 The fire-resistant and fireproof special cable of the embodiment of the present invention includes a cable core 1 whose innermost layer is made of multiple strands of high-precision pure copper twisted together, and the cable core 1 is coated with a ceramic-based composite tape 101 made by folding along the axis of the cable core 1 in the longitudinal direction, and the inner wall of the ceramic-based composite tape 101 is tightly attached to the outer wall of the cable core 1, and the ceramic-based composite tape 101 is coated with a quartz fiber braided layer 102 on the outside, and the quartz fiber braided layer 102 is coated with a ceramicized silicone rubber sheath 103 on the outside.

[0029] Specifically, the cable core 1 is made of high-precision high-purity copper strands, and a high-temperature fiber-reinforced ceramic-based composite tape 101 is added to the outer layer of the cable core 1 as the insulation layer of the cable. The high-temperature fiber-reinforced ceramic-based composite tape 101 has high strength, high modulus, low density, high temperature resistance, wear resistance, corrosion resistance and good toughness. The ceramic-based composite tape 101 is added in a longitudinal folding manner along the axis to make it fit closely to the surface of the cable core 1, and the overlap rate is ≥15%, which is suitable for multi-layer encapsulation; high-purity quartz fiber yarns are added to the outer side of the high-temperature fiber-reinforced ceramic-based composite tape 101 for weaving to form a quartz fiber yarn braided layer 102. The long-term use temperature of the high-purity quartz fiber yarn braided layer 102 can reach 1200°C, and the softening point temperature is as high as 1700°C. , and at the same time has high electrical insulation performance, ablation resistance, thermal shock resistance, excellent dielectric properties and good; braiding density ≥ 95%, as the secondary fixing layer and insulation layer of cable insulation, the fiber has good flexibility and tensile resistance, which can completely solve the production problems of various small-area fire-resistant cables; the outer sheath of the ceramic-based composite tape 101 is formed by extruding tear-resistant ceramic silicone rubber to form a ceramic silicone rubber sheath 103, which is converted into inorganic ceramic material when encountering high temperature. The ceramic silicone rubber has the advantages of ceramic insulation, heat insulation, fire insulation, water insulation, shock resistance, and low thermal weight loss; in the event of a fire, the ceramic silicone rubber is converted into a "ceramic" hard shell, which can play a good role in flame retardancy, fire resistance, fire prevention, and fire insulation, and can withstand up to 3000°C, effectively ensuring the smooth flow of the line.

[0030] Embodiment 2 Cable installation equipment, for the above-mentioned fire-resistant special cables, please refer to Figure 1 , Figure 2 , including a bracket assembly 2 arranged outside the cable core 1, three clamps 3 equidistantly attached to the outer wall of the cable body are slidably connected to the bracket assembly 2, a driving mechanism 7 for pushing the three clamps 3 to move equidistantly is arranged on the bracket assembly 2, a glue coating assembly 4 is arranged on one of the clamps 3, a plurality of flexible scrapers 5 are equidistantly connected to one of the clamps 3, and a blowing assembly 6 is arranged on one of the clamps 3; after the damaged part of the cable is lifted and propped up by the bracket assembly 2, the three clamps 3 are pushed by the driving mechanism 7 to position the outer wall of the cable, and then the damaged part of the cable is coated with glue, scraped flat with glue, and air-dried with glue in a counterclockwise order by the glue coating assembly 4, the flexible scraper 5 and the blowing assembly 6, so as to improve the service life of the cable.

[0031] Please refer to Figure 1 , Figure 2 , the bracket assembly 2 includes an annular plate 201, a base 202, a movable plate 203 and a first cable groove 204; An annular plate 201 is provided on the outer wall of the cable body, the bottom end of the annular plate 201 is connected to a base 202, the inner wall of the annular plate 201 is rotatably connected to a movable plate 203, and a first cable groove 204 is provided inside the movable plate 203; by providing a bracket assembly 2, the damaged part of the cable can be lifted and supported, so that the staff can repair the damaged part of the cable in time.

[0032] Please refer to Figure 5 , Figure 6 One end of each clamp plate 3 away from the outer wall of the cable body is connected to a movable rod 301, each movable rod 301 is slidably connected to the inside of the movable plate 203, and each clamp plate 3 and the movable rod 301 are hollow inside.

[0033] Please refer to Figure 1 , Figure 4 , Figure 5 The glue coating component 4 includes a glue coating groove 401, a glue outlet 402, a first corrugated pipe 403, a glue storage tank 404, a water pump 405 and a glue replenishing port 406; The outer wall of one of the clamping plates 3 is provided with three glue coating grooves 401, each of which is provided with a glue outlet 402, each of which is provided with a first non-return valve for preventing glue from flowing back, a first bellows 403 is installed on the inner wall of the movable rod 301 connected to the clamping plate 3, a glue storage tank 404 is installed at the bottom end of the first bellows 403, a water pump 405 is installed inside the glue storage tank 404, a discharge pipe installed on the top end of the water pump 405 is connected to the bottom end of the first bellows 403, and a glue filling port 406 is provided on the glue storage tank 404; The pump 405 draws the glue from the glue storage tank 404 into the first corrugated tube 403, and the glue enters the splint 3 through the movable rod 301 until it flows out through the glue outlet 402. Under the action of the first one-way valve inside the glue outlet 402, the glue can be prevented from flowing back into the splint 3, and the squeezed glue is coated on the outer wall of the cable core 1 along the groove of the glue coating groove 401, so as to repair the damaged part of the outer wall of the cable core 1. When the glue in the glue storage tank 404 is insufficient, the glue storage tank 404 can be filled with glue by opening the plug inside the glue filling port 406.

[0034] Please refer to Figure 1 , Figure 4 , Figure 6 , the blowing assembly 6 includes a second bellows 601, a hot air blower 602, an air outlet 603 and a partition plate 604; The inner wall of one of the movable rods 301 is connected to a second bellows 601, and a hot air blower 602 is installed at the other end of the second bellows 601. The outer wall of the hot air blower 602 is installed on the outer wall of the movable plate 203. The inner wall of the splint 3 connected to the movable rod 301 is provided with a plurality of air outlets 603 at equal intervals, and each air outlet 603 is provided with a plurality of second one-way valves for preventing air from flowing back. The outer wall of the splint 3 is connected to two partition plates 604. After the flexible scraper 5 has scraped the glue flat, when the next splint 3 rotates to the area where the glue is scraped flat, the hot air blower 602 is turned on to make the hot air blower 602 Air is supplied inside the second bellows 601, and the airflow enters the interior of the splint 3 along the movable rod 301, and is then ejected through the air outlet 603, so as to air-dry the glue after scraping. The curing temperature range of the glue is generally 40-60°C, and the highest heat-resistant temperature of the cable is generally 70°C. The temperature of the hot air blower can be set between 40-50°C, which can quickly dry the glue without damaging the cable. By providing a partition plate 604, the splint 3 can be kept at a certain distance from the outer wall of the cable core 1 to avoid direct contact of the glue on the surface of the splint 3, thereby maintaining the effect of air circulation.

[0035] Please refer to Figure 1 , Figure 7 , the driving mechanism 7 includes a slide slot 701, a limiting rod 702, a limiting plate 703, a second cable slot 704, a limiting slot 705 and a driving assembly 706; The movable plate 203 has three equidistant sliding grooves 701 for sliding of multiple movable rods 301. The outer wall of each movable rod 301 is connected to a limiting rod 702. The outer wall of the movable plate 203 is rotatably connected to a limiting plate 703. The limiting plate 703 has a second cable groove 704. The limiting plate 703 has three equidistant limiting grooves 705. Each limiting groove 705 is arc-shaped. The outer wall of each limiting rod 702 is slidably connected to the limiting groove 705. The outer wall of the movable plate 203 is provided with a push rod 702. A driving component 706 is provided to drive multiple movable rods 301 to move synchronously; the limiting plate 703 is driven to rotate by the driving component 706, and the limiting groove 705 rotates synchronously, thereby driving the limiting rod 702 inside the limiting groove 705 to slide, so that the limiting rod 702 drives the movable rod 301 to slide inside the slide groove 701, thereby making the three clamping plates 3 move synchronously until they are in contact with the outer wall of the cable core 1, thereby positioning the cable core 1, and at the same time, enabling the three clamping plates 3 inside the movable plate 203 to position cables of different diameters.

[0036] Please refer to Figure 7 , the driving assembly 706 includes a worm gear 7061, a side frame 7062, a first servo motor 7063 and a worm 7064; A worm gear 7061 is installed on the side wall of the limit plate 703, and a side frame 7062 is connected to the outer wall of the movable plate 203. A first servo motor 7063 is installed at the bottom end of the side frame 7062. A worm 7064 is sleeved on the output end of the first servo motor 7063. The top end of the worm 7064 is rotatably connected to the side frame 7062, and the outer wall of the worm wheel 7061 is meshed with the worm 7064. The worm 7064 is driven to rotate by the first servo motor 7063, so that the worm 7064 drives the worm wheel 7061 to rotate, and the worm wheel 7061 drives the limit plate 703 to rotate, thereby realizing the displacement of the limit rod 702 in the limit slot 705 when it moves.

[0037] Please refer to Figure 1 , Figure 2 , Fig. 9 The side wall of the movable plate 203 is connected to a driven wheel 8, the inner wall of the annular plate 201 is installed with a second servo motor 801, the output end of the second servo motor 801 is sleeved with a driving rod 802, the side wall of the driving rod 802 is connected to a driving wheel 803, and the outer wall of the driving wheel 803 is meshed with the driven wheel 8; the second servo motor 801 drives the driving rod 802 to rotate, thereby driving the driving wheel 803 to drive the movable plate 203 connected to the driven wheel 8 to rotate on the inner wall of the annular plate 201, and then can drive the three clamping plates 3 to rotate counterclockwise, so that the damaged parts of the outer wall of the cable core 1 are coated with glue, smoothed with glue, and air-dried with glue in turn.

[0038] Please refer to Figure 1 , Figure 2 Two symmetrically arranged vertical poles 9 are connected to the top of the base 202, and a guide plate 901 is connected to the top of each vertical pole 9. The inner wall of each guide plate 901 is in contact with the outer wall of the cable body. By providing two guide plates 901, the front and rear ends of the damaged part of the cable core 1 can be lifted and guided, thereby avoiding excessive bending of the damaged part of the cable core 1 during repair, thereby playing a protective role.

[0039] Working principle: The cable core 1 is placed as a whole along the guide plate 901 into the first cable groove 204, and the worm 7064 is driven to rotate by the first servo motor 7063, so that the worm 7064 drives the worm wheel 7061 to rotate, and the worm wheel 7061 drives the limit plate 703 to rotate, and the limit groove 705 rotates synchronously to drive the limit rod 702 inside the limit groove 705 to slide, so that the limit rod 702 drives the movable rod 301 to slide inside the slide groove 701, so that the three clamping plates 3 move synchronously until they are in contact with the outer wall of the cable core 1, thereby positioning the cable core 1; The second servo motor 801 drives the driving rod 802 to rotate, so that the driving rod 802 drives the driving wheel 803 to rotate, so that the driving wheel 803 drives the movable plate 203 connected to the driven wheel 8 to rotate inside the annular plate 201, so that the three clamping plates 3 inside the movable plate 203 rotate counterclockwise on the outer wall of the cable core 1, so that the glue coating component 4 on the clamping plate 3 first coats the outer wall of the cable core 1 with glue, and the glue is scraped flat by the flexible scraper 5, and then the glue is blown dry by the blowing component 6 after being scraped flat; The following are the steps of rotating the three clamping plates 3 counterclockwise to apply glue to the damaged parts of the outer wall of the cable core 1, scraping the glue flat, and air-drying the glue: The glue in the glue storage tank 404 is extracted by the water pump 405 and enters the first corrugated tube 403. The glue enters the inside of the clamping plate 3 through the movable rod 301 until it flows out through the glue outlet 402. Under the action of the first one-way valve inside the glue outlet 402, the glue can be prevented from flowing back into the inside of the clamping plate 3. The squeezed glue is coated on the outer wall of the cable core 1 along the groove of the glue coating groove 401, so that the damaged part of the outer wall of the cable core 1 can be repaired. When the glue in the glue storage tank 404 is insufficient, the glue storage tank 404 can be filled with glue by opening the plug inside the glue filling port 406. After the glue is applied to the damaged part of the outer wall of the cable core 1 by the glue coating component 4, the flexible scraper 5 on the next clamping plate 3 will scrape the applied glue to ensure that the glue is evenly covered on the cable surface to avoid uneven thickness, thereby improving the protection effect. Scraping can help discharge bubbles in the glue to prevent bubbles from forming weak points after curing and affecting the overall performance of the cable; After the flexible scraper 5 has scraped the glue flat, when the next splint 3 rotates to the area where the glue is scraped flat, the hot air blower 602 is turned on to supply air to the inside of the second corrugated tube 601. The airflow enters the inside of the splint 3 along the movable rod 301 and is then ejected through the air outlet 603, thereby air-drying the scraped glue. By providing a spacer 604, the splint 3 can maintain a certain distance from the outer wall of the cable core 1 to prevent the glue from directly contacting the surface of the splint 3, thereby maintaining the airflow.

[0040] An example of the present specific implementation mode is described above, but the present embodiment is not limited to the above-mentioned specific implementation mode, which is merely illustrative and not restrictive. A person skilled in the art may make many forms inspired by the present embodiment, all of which are protected by the present embodiment.

Claims

1. Fire-resistant and fire-proof special cables, characterized by: The invention comprises a cable core (1) whose innermost layer is made of a plurality of strands of high-precision pure copper twisted together, the cable core (1) is coated with a ceramic-based composite tape (101) formed by folding along the longitudinal axis of the cable core (1), and the inner wall of the ceramic-based composite tape (101) is tightly fitted to the outer wall of the cable core (1), the ceramic-based composite tape (101) is coated with a quartz fiber braided layer (102), and the quartz fiber braided layer (102) is coated with a ceramicized silicone rubber sheath (103).

2. Cable installation equipment for installing the fire-resistant and fire-proof special cable according to claim 1, characterized in that: The invention comprises a support assembly (2) arranged outside the cable core (1), wherein three clamping plates (3) equidistantly attached to the outer wall of the cable body are slidably connected to the support assembly (2), and a driving mechanism (7) is arranged on the support assembly (2) for pushing the three clamping plates (3) to move equidistantly, wherein a rubber coating assembly (4) is arranged on one of the clamping plates (3), wherein a plurality of flexible scrapers (5) are equidistantly connected to one of the clamping plates (3), and wherein a blowing assembly (6) is arranged on one of the clamping plates (3).

3. The cable installation device according to claim 2, characterized in that: The support assembly (2) comprises an annular plate (201), a base (202), a movable plate (203) and a first cable groove (204); An annular plate (201) is provided on the outer wall of the cable body, the bottom end of the annular plate (201) is connected to a base (202), the inner wall of the annular plate (201) is rotatably connected to a movable plate (203), and a first cable groove (204) is provided inside the movable plate (203).

4. The cable installation device according to claim 2, characterized in that: One end of each clamping plate (3) away from the outer wall of the cable body is connected to a movable rod (301), each movable rod (301) is slidably connected inside the movable plate (203), and each clamping plate (3) and the movable rod (301) are hollow inside.

5. The cable installation device according to claim 2, characterized in that: The glue coating assembly (4) comprises a glue coating groove (401), a glue outlet (402), a first corrugated pipe (403), a glue storage tank (404), a water pump (405) and a glue replenishing port (406); The outer wall of one of the clamping plates (3) is provided with three glue coating grooves (401), each of the glue coating grooves (401) is provided with a glue outlet (402), each of the glue outlets (402) is provided with a first one-way valve for preventing glue from flowing back, a first bellows (403) is provided on the inner wall of a movable rod (301) connected to the clamping plate (3), a glue storage tank (404) is provided at the bottom end of the first bellows (403), a water pump (405) is provided inside the glue storage tank (404), a discharge pipe provided at the top end of the water pump (405) is connected to the bottom end of the first bellows (403), and a glue replenishing port (406) is provided on the glue storage tank (404).

6. The cable installation device according to claim 4, characterized in that: The blowing assembly (6) comprises a second bellows (601), a hot air blower (602), an air outlet (603) and a partition plate (604); The inner wall of one of the movable rods (301) is connected to a second bellows (601), the other end of the second bellows (601) is installed with a hot air blower (602), the outer wall of the hot air blower (602) is installed on the outer wall of the movable plate (203), the interior of the clamping plate (3) to which the movable rod (301) is connected is provided with a plurality of air outlets (603) at equal intervals, each of the air outlets (603) is installed with a plurality of second one-way valves for preventing air from flowing back, and the outer wall of the clamping plate (3) is connected to two partition plates (604).

7. The cable installation device according to claim 4, characterized in that: The driving mechanism (7) comprises a sliding groove (701), a limiting rod (702), a limiting plate (703), a second cable groove (704), a limiting groove (705) and a driving assembly (706); The movable plate (203) is provided with three equidistant sliding grooves (701) for sliding a plurality of movable rods (301), the outer wall of each movable rod (301) is connected to a limiting rod (702), the outer wall of the movable plate (203) is rotatably connected to a limiting plate (703), a second cable groove (704) is provided inside the limiting plate (703), the inner wall of the limiting plate (703) is provided with three equidistant sliding grooves (705), the outer wall of each limiting rod (702) is slidably connected to the inside of the limiting groove (705), and the outer wall of the movable plate (203) is provided with a driving component (706) for driving the plurality of movable rods (301) to move synchronously.

8. The cable installation device according to claim 7, characterized in that: The driving assembly (706) comprises a worm gear (7061), a side frame (7062), a first servo motor (7063) and a worm (7064); A worm wheel (7061) is installed on the side wall of the limit plate (703), the outer wall of the movable plate (203) is connected to a side frame (7062), a first servo motor (7063) is installed at the bottom end of the side frame (7062), a worm (7064) is sleeved on the output end of the first servo motor (7063), the top end of the worm (7064) is rotatably connected to the side frame (7062), and the outer wall of the worm wheel (7061) is meshed with the worm (7064).

9. The cable installation device according to claim 3, characterized in that: The side wall of the movable plate (203) is connected to a driven wheel (8), the inner wall of the annular plate (201) is mounted with a second servo motor (801), the output end of the second servo motor (801) is sleeved with a driving rod (802), the side wall of the driving rod (802) is connected to a driving wheel (803), and the outer wall of the driving wheel (803) is meshed with the driven wheel (8).

10. The cable installation device according to claim 3, characterized in that: The top of the base (202) is connected to two symmetrically arranged vertical poles (9), the top of each vertical pole (9) is connected to a guide plate (901), and the inner wall of each guide plate (901) is in contact with the outer wall of the cable body.

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