Photoelectric composite waterproof and flame-retardant cable and processing device thereof

Abstract

The present invention discloses a photoelectric composite waterproof and flame-retardant cable and a processing device thereof, specifically relating to the field of photoelectric composite cables. The photoelectric composite waterproof and flame-retardant cable comprises an optical fiber core and an electrical wire core, wherein a protective sleeve for fixing and protecting the optical fiber core and the electrical wire core is provided between the optical fiber core and the electrical wire core. The protective sleeve has relatively good waterproof and flame-retardant properties. At the same time, the protective sleeve can provide good protection for the optical fiber core and the electrical wire core, thereby increasing the service life of the photoelectric composite cable. The processing device of the photoelectric composite waterproof and flame-retardant cable disclosed in the present invention comprises two base plates, two mounting brackets are provided on the top of the two base plates, and the tops of the mounting brackets are each provided with a fixing bracket. The tops of the two base plates are provided with a mounting seat and a stand, and the tops of the mounting seats are provided with a drive motor to drive a roller to rotate, thereby simultaneously covering the surface of the photoelectric composite cable with a waterproof layer, a flame-retardant layer, and a rubber layer in sequence, effectively improving processing efficiency.

Description

Technical Field

[0001] The present invention relates to the field related to photoelectric composite cables, and in particular to a photoelectric composite waterproof and flame-retardant cable and a processing device thereof. Background Art

[0002] With the continuous development of information technology, fiber-optic communications play a vital role in the communications industry, becoming the cornerstone of modern communications. Contemporary society places increasingly high demands on the safety, stability, and intelligence of power and power grids. Reliable and efficient power communications are the foundation of grid security and stability systems and dispatch automation systems, and are also a crucial prerequisite for modern power system management.

[0003] The application of fiber-optic communications in power communications typically involves laying conventional optical cables using traditional telecom methods, such as ground, pipeline, and overhead installation, to form a power fiber-optic communications system. This separates the optical cables from the power cables, increasing the space required for laying in trenches and pipelines, significantly increasing labor and laying costs. Furthermore, prolonged use in harsh environments can cause the optical cables to fail to meet their rated operating requirements and become damaged, further increasing replacement and repair costs.

[0004] To this end, the present invention provides a photoelectric composite waterproof and flame-retardant cable and a processing device thereof. Summary of the Invention

[0005] The main purpose of the present invention is to provide a photoelectric composite waterproof and flame-retardant cable and a processing device thereof, which can effectively solve the problems in the background technology.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] A photoelectric composite waterproof and flame-retardant cable and a processing device thereof, comprising an optical fiber core and an electric wire core, a protective sleeve for fixing and protecting the optical fiber core and the electric wire core being provided between the optical fiber core and the electric wire core, a first filling layer being provided on the top and bottom of the protective sleeve, a second filling layer being provided on both sides of the protective sleeve, the combined cross-section of the two first filling layers and the second filling layers being elliptical, and the outer surfaces of the two first filling layers and the second filling layers being covered with a waterproof layer, the outer surfaces of the waterproof layer being covered with a flame-retardant layer, and the outer surfaces of the flame-retardant layer being covered with a rubber layer.

[0008] Preferably, mounting grooves are provided in the middle of both sides of the protective cover, and the optical fiber core and the wire core are respectively arranged in the two mounting grooves. Buffer cavities perpendicular to the mounting grooves are also provided on both sides of the protective cover, and the two adjacent buffer cavities are equidistantly staggered in sequence.

[0009] Preferably, the surface of the optical fiber core is covered with a sleeve, the surface of the sleeve is covered with an optical fiber protective layer, and the outer wall of the optical fiber protective layer is in close contact with the inner wall of the installation groove.

[0010] Preferably, the surface of the wire core is covered with an insulating layer, the surface of the insulating layer is covered with a wire protective layer, and the outer wall of the wire protective layer is in close contact with the inner wall of the installation groove.

[0011] The present invention also discloses a device for processing a photoelectric composite waterproof and flame-retardant cable, comprising two bottom plates, two mounting brackets being provided on the top of the two bottom plates, and a fixing bracket being provided on the top of each mounting bracket. A mounting seat and a vertical bracket are provided on the top of the two bottom plates between the two mounting brackets, a driving motor being provided on the top of the mounting seat, and a plurality of rollers being provided at one end of the vertical bracket.

[0012] The middle part of the stand is rotatably mounted with a roller through a bearing, the outer surface of the gear ring is provided with a gear ring, the output end of the drive motor is fixed with a driving gear meshing with the gear ring, one end of the roller has three connecting rods of different lengths in a circular array, and the three rollers are fixedly connected to the reel through the three connecting rods.

[0013] Preferably, the fixing frame includes two side panels, the two side panels are symmetrically arranged on the top of the mounting frame, and two fixing members are provided between the two side panels in an upper and lower symmetrical manner;

[0014] The fixing member includes a top plate, and the outer side of the top plate is provided with a fixing plate for fixing the fixing member and the side plate. Two buffer rods are symmetrically provided on the inner side of the top plate, and a fixing block is fixedly installed at one end of the two buffer rods away from the top plate, and a roller is provided between the two fixing blocks.

[0015] Preferably, the middle portion of the outer surface of the roller is configured as a concave surface matching the shape of the first filling layer.

[0016] Preferably, the buffer rod includes a sleeve fixedly connected to the fixed block and a shaft rod fixedly connected to the top plate, and the shaft rod is slidably installed in the sleeve. One end of the shaft rod located in the sleeve is provided with a slide plate slidably connected to the sleeve, and a spring is provided between the slide plate and the bottom wall of the sleeve.

[0017] Preferably, the winding roller includes a drum and a baffle rotatably connected to the connecting rod, an insertion rod is provided at one end of the baffle away from the connecting rod, and a protrusion is provided on the outer surface of the insertion rod, a mounting hole for use with the insertion rod is provided in the middle of the drum and the limit plate, limit plates are provided at both ends of the drum, and a blocking device is provided at one end of the insertion rod.

[0018] Preferably, the blocking device includes a fixing box, T-shaped plates are slidably mounted on both sides of the inner cavity of the fixing box, and ends of the T-shaped plates away from each other pass through the fixing box and extend to the outside and are fixed with counterweights.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The optoelectronic composite cable disclosed in the present invention is provided with a protective sleeve. The optical fiber core and the electric wire core are respectively installed in two installation grooves for protection. When the optoelectronic composite cable produces thermal expansion and contraction or bending, the buffer cavity can be used for buffering, thereby providing good protection for the optical fiber core and the electric wire core and improving the service life of the optoelectronic composite cable.

[0021] 2. The optoelectronic composite cable processing device disclosed in the present invention can utilize three rollers to perform circular motion around the coated optoelectronic composite cable, thereby sequentially coating the waterproof layer, flame retardant layer and rubber layer on the surface of the optoelectronic composite cable, and can work simultaneously, effectively improving processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic cross-sectional view of the optoelectronic composite cable disclosed in the present invention;

[0023] Figure 2 This is a schematic diagram of the overall structure of the protective cover of the present invention;

[0024] Figure 3 This is a schematic diagram of the overall structure of the optoelectronic composite cable processing device disclosed in the present invention;

[0025] Figure 4 It is a top view of the optoelectronic composite cable processing device;

[0026] Figure 5 This is a schematic diagram of the overall structure of the first filling layer in the optoelectronic composite cable processing device;

[0027] Figure 6 This is a schematic diagram of the overall structure of the fixing parts in the optoelectronic composite cable processing device;

[0028] Figure 7 For the present invention Figure 6 A magnified view of the structure at center A;

[0029] Figure 8 This is a schematic diagram of the disassembly of the winding roller of the optoelectronic composite cable processing device;

[0030] Figure 9 For the present invention Figure 8 Enlarged view of the structure at point B in the middle.

[0031] In the figure: 11, optical fiber core; 111, casing; 112, optical fiber protective layer; 12, wire core; 121, insulation layer; 122, wire protective layer; 13, protective sleeve; 131, mounting groove; 132, buffer cavity; 14, first filling layer; 15, second filling layer; 16, waterproof layer; 17, flame retardant layer; 18, rubber layer; 2, bottom plate; 3, mounting bracket; 4, fixing bracket; 41, side plate; 42, fixing piece; 421, top plate; 422, fixing piece; 423. Buffer rod; 4231. Sleeve; 4232. Shaft; 4233. Slide plate; 4234. Spring; 424. Fixing block; 425. Roller; 5. Mounting seat; 6. Driving motor; 7. Stand; 71. Drum; 72. Ring gear; 73. Driving gear; 8. Roller; 81. Reel; 82. Limiting plate; 83. Mounting hole; 84. Insert rod; 841. Fixing box; 842. T-plate; 843. Counterweight; 85. Baffle; 9. Connecting rod. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0033] Example 1

[0034] like Figure 1 As shown, the present invention discloses a photoelectric composite waterproof and flame-retardant cable, comprising an optical fiber core 11 and an electric wire core 12, a protective sleeve 13 for fixing and protecting the optical fiber core 11 and the electric wire core 12 is provided between the optical fiber core 11 and the electric wire core 12, a first filling layer 14 is provided on the top and bottom of the protective sleeve 13, a second filling layer 15 is provided on both sides of the protective sleeve 13, the combined cross-section of the two first filling layers 14 and the second filling layers 15 is elliptical, and the outer surfaces of the two first filling layers 14 and the second filling layers 15 are covered with a waterproof layer 16, the outer surface of the waterproof layer 16 is covered with a flame-retardant layer 17, and the outer surface of the flame-retardant layer 17 is covered with a rubber layer 18.

[0035] Among them, it should be noted that the waterproof layer 16 is made of overlapping ethylene films, and its thickness is controlled at 3-4mm. The flame retardant layer 17 is made of flame retardant glass fiber tape, which can make the entire cable have a strong fire retardant effect. Then the rubber layer 18 is used to cover the flame retardant layer 17 for further protection. The first filling layer 14 is supported by a sponge to provide flexible support on the side.

[0036] Furthermore, the surface of the optical fiber core 11 is covered with a sleeve 111, and the surface of the sleeve 111 is covered with an optical fiber protective layer 112, wherein the sleeve 111 is made of polypropylene, which effectively protects the sleeve 111, and the optical fiber protective layer 112 is made of chloroprene rubber, which further effectively protects the optical fiber core 11.

[0037] Furthermore, the surface of the above-mentioned wire core 12 is coated with an insulating layer 121, and the surface of the insulating layer 121 is coated with a wire protective layer 122. The insulating layer 121 can be made of cross-linked polyethylene. After cross-linking, polyethylene changes from thermoplastic to thermosetting, which improves heat resistance. The long-term working temperature is 90°C, and the short-term use temperature can reach 250°C. It improves resistance to environmental stress cracking and cold flow, improves chemical stability, improves aging resistance and solvent resistance, is conducive to eliminating bubbles in the production process, and improves the insulation grade of the cable. The optical fiber protective layer 112 is made of chloroprene rubber. Neoprene rubber has good physical and mechanical properties, and is resistant to oil, heat, flame, sunlight, ozone, acid and alkali, and chemical reagents. It has high tensile strength, elongation, reversible crystallinity, and good adhesion. It has excellent aging resistance, heat resistance, oil resistance, and chemical corrosion resistance. Its weather resistance and ozone aging resistance are second only to EPDM and butyl rubber, with a decomposition temperature of 230-260°C, a short-term resistance of 120-150°C, and a long-term use at 80-100°C. It has certain flame retardancy, further providing protection for the wire core 12.

[0038] In order to improve the bending resistance of the entire cable and make it suitable for common situations such as thermal expansion and contraction, such as Figure 2 As shown, mounting grooves 131 are provided in the middle of both sides of the protective sleeve 13. The optical fiber core 11 and the electrical wire core 12 are respectively disposed within the two mounting grooves 131. Buffer cavities 132 are also provided on both sides of the protective sleeve 13, perpendicular to the mounting grooves 131. Adjacent buffer cavities 132 are staggered and spaced equidistantly from each other. The protective sleeve 13 is made of foamed cotton, which is formed by foaming polyether, similar to foamed bread. Foaming can be done mechanically or manually using wooden boards. The foamed cotton is sliced using a slicer, and the thickness can be cut to suit different requirements. The hardness of the foamed cotton can also be adjusted. The seat cotton generally uses a density of 25-28 kg / m³, while other materials use a density of 20-22 kg / m³.

[0039] Although the hardness and density of sponges are directly related, they are also related to different additive formulas. Therefore, the industry divides sponges into high elasticity, gray super, black gray super, and soft cotton. When designing and using products, they should be reasonably and scientifically matched according to different shapes and structures. Generally, sponges with different elasticity and density are matched in three parts: upper, middle, and low. There is a kind of sponge called fireproof cotton material (flame retardant cotton). In fact, fire retardants such as chlorine and bromine are added to the material formula before the sponge is foamed. When the sponge catches fire, it can produce thick smoke to extinguish the fire, playing a flame retardant role.

[0040] It can be seen that by installing the optical fiber core 11 and the electric wire core 12 in the two installation grooves 131 respectively for protection, when the optoelectronic composite cable produces thermal expansion and contraction or bending, the buffer cavity 132 can be used for buffering, thereby having a good protection effect on the optical fiber core 11 and the electric wire core 12 and improving the service life of the optoelectronic composite cable.

[0041] Example 2

[0042] This embodiment discloses a processing device for preparing the optoelectronic composite waterproof and flame-retardant cable in Example 1, which is mainly used to coat the waterproof layer 16 , the flame-retardant layer 17 and the rubber layer 18 .

[0043] Specifically, such as Figure 3-4 As shown, the processing device includes two bottom plates 2, two mounting frames 3 are fixedly mounted on the top of the two bottom plates 2, and a fixing frame 4 is provided on the top of each mounting frame 3. A mounting seat 5 and a vertical frame 7 are provided on the top of the two bottom plates 2 between the two mounting frames 3, and a driving motor 6 is provided on the top of the mounting seat 5. A plurality of rollers 8 are provided at one end of the vertical frame 7.

[0044] Furthermore, a roller 71 is rotatably mounted on the middle portion of the stand 7 via a bearing, a gear ring 72 is provided on the outer surface of the gear ring 72, a driving gear 73 is fixed to the output end of the drive motor 6 and meshes with the gear ring 72, and one end of the roller 71 has three connecting rods 9 of different lengths in a circular array, and the three winding rollers 8 are fixedly connected to the reel 81 via the three connecting rods 9 respectively;

[0045] It can be seen from this that by starting the drive motor 6, the active gear 73 can be used to drive the ring gear 72 to rotate, thereby rotating the drum 71, and driving the three rollers 8 to rotate through the three connecting rods 9; wherein, the lengths of the three connecting rods 9 increase successively, and the increased distance is the length of a single roller 8. In practice, the waterproof layer 16, the flame retardant layer 17 and the rubber layer 18 are respectively wound on the three rollers 8 in the direction of movement of the uncoated optoelectronic composite cable, and the waterproof layer 16, the flame retardant layer 17 and the rubber layer 18 can be coated at the same time, and ensure that the waterproof layer 16, the flame retardant layer 17 and the rubber layer 18 are arranged from the inside to the outside.

[0046] Of course, before covering the waterproof layer 16, the flame retardant layer 17 and the rubber layer 18, workers need to first install the optical fiber core 11 and the wire core 12 in the installation groove 131, and use glue to stick the first filling layer 14 and the second filling layer 15 to the protective cover 13, and then enter the above-mentioned covering step. During the covering process, the two sets of mounting frames 3 and fixing frames 4 are used to fix the uncovered and covered optoelectronic composite cables.

[0047] Specifically, such as Figure 5 and Figure 6As shown, the fixing frame 4 includes two side panels 41, and the two side panels 41 are symmetrically arranged on the top of the mounting frame 3, and two fixing members 42 are symmetrically arranged between the two side panels 41. Specifically, the two side panels 41 and the mounting frame 3 are installed by bolts, which can be easily disassembled; wherein, the fixing member 42 includes a top plate 421, and the outer side of the top plate 421 is provided with a fixing piece 422 for fixing the fixing member 42 and the side panel 41, and two buffer rods 423 are symmetrically arranged on the inner side of the top plate 421, and the two buffer rods 423 are fixedly installed with a fixing block 424 at one end away from the top plate 421, and a roller 425 is provided between the two fixing blocks 424.

[0048] Since the two fixing members 42 are symmetrical in the upper and lower parts, and the middle part of the outer surface of the roller 425 is set to a concave surface that matches the shape of the first filling layer 14, the uncoated and coated optoelectronic composite cables can be placed between the two symmetrical rollers 425 to ensure the reliability of the fixation. The roller 425 can roll without affecting the movement of the optoelectronic composite cable.

[0049] Further, such as Figure 7 As shown, the above-mentioned buffer rod 423 includes a sleeve 4231 fixedly connected to the fixed block 424 and a shaft rod 4232 fixedly connected to the top plate 421, and the shaft rod 4232 is slidably installed in the sleeve 4231, and one end of the shaft rod 4232 located in the sleeve 4231 is provided with a slide plate 4233 slidably connected to the sleeve 4231, and a spring 4234 is provided between the slide plate 4233 and the bottom wall of the sleeve 4231. It can be seen that when fixing the entire optoelectronic composite cable, the spring 4234 can be used to play a certain buffering and protective role, and the entire fixing frame 4 can be suitable for fixing both uncoated and coated optoelectronic composite cables.

[0050] like Figure 8 As shown, the winding roller 8 includes a winding drum 81 and a baffle 85 rotatably connected to the connecting rod 9. The baffle 85 is provided with an insertion rod 84 at one end away from the connecting rod 9, and the outer surface of the insertion rod 84 is provided with a protrusion. The middle part of the winding drum 81 and the limit plate 82 is provided with a mounting hole 83 for use with the insertion rod 84 to prevent the insertion rod 84 and the winding drum 81 from rotating relative to each other and affecting normal work. Therefore, when the drum 71 rotates under the drive of the drive motor 6, the three winding rollers 8 can be made to perform a circular motion around the coated optoelectronic composite cable, so that the waterproof layer 16, the flame retardant layer 17 and the rubber layer 18 can be sequentially coated on the surface of the optoelectronic composite cable.

[0051] In order to prevent the roller 8 from falling off during the coating process, a blocking device is provided at one end of the insertion rod 84. Specifically, Figure 9As shown, the blocking device includes a fixed box 841, and T-shaped plates 842 are slidably mounted on both sides of the inner cavity of the fixed box 841, and the ends of the T-shaped plates 842 that are away from each other pass through the fixed box 841 and extend to the outside and are fixed with a counterweight block 843;

[0052] Therefore, during the rotation of the roller 8, the gravity of the counterweight block 843 itself or the centrifugal force generated during rotation can be used to make the counterweight block 843 push the baffle 85 to prevent the reel 81 from falling off the insertion rod 84. When replacing it, you only need to press the two counterweight blocks 843 inward to take them out, which is simple and convenient to operate.

[0053] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A photoelectric composite waterproof flame-retardant cable, comprising an optical fiber core (11) and an electric wire core (12), characterized in that: A protective sleeve (13) for fixing and protecting the optical fiber core (11) and the electric wire core (12) is provided between the optical fiber core (11) and the electric wire core (12), a first filling layer (14) is provided on the top and bottom of the protective sleeve (13), a second filling layer (15) is provided on both sides of the protective sleeve (13), the combined cross-section of the two first filling layers (14) and the second filling layers (15) is elliptical, and the outer surfaces of the two first filling layers (14) and the second filling layers (15) are covered with a waterproof layer (16), the outer surface of the waterproof layer (16) is covered with a flame retardant layer (17), and the outer surface of the flame retardant layer (17) is covered with a rubber layer (18); Mounting grooves (131) are provided in the middle of both sides of the protective cover (13), and the optical fiber core (11) and the electric wire core (12) are respectively provided in the two mounting grooves (131). Buffer cavities (132) perpendicular to the mounting grooves (131) are also provided on both sides of the protective cover (13), and two adjacent buffer cavities (132) are staggered and distributed in sequence at equal intervals.

2. The photoelectric composite waterproof and flame-retardant cable according to claim 1, characterized in that: The surface of the optical fiber core (11) is covered with a sleeve (111), the surface of the sleeve (111) is covered with an optical fiber protective layer (112), and the outer wall of the optical fiber protective layer (112) is tightly attached to the inner wall of the installation groove (131).

3. The photoelectric composite waterproof and flame-retardant cable according to claim 1, characterized in that: The surface of the wire core (12) is covered with an insulating layer (121), the surface of the insulating layer (121) is covered with a wire protection layer (122), and the outer wall of the wire protection layer (122) is tightly attached to the inner wall of the installation groove (131).

4. A device for processing the optoelectronic composite waterproof and flame-retardant cable according to any one of claims 1 to 3, characterized in that: The invention comprises two bottom plates (2), two mounting frames (3) are provided on the top of the two bottom plates (2), and a fixing frame (4) is provided on the top of each mounting frame (3); a mounting seat (5) and a vertical frame (7) are provided on the top of the two bottom plates (2) between the two mounting frames (3), and a driving motor (6) is provided on the top of the mounting seat (5); and a plurality of rollers (8) are provided at one end of the vertical frame (7); A roller (71) is rotatably mounted on the middle portion of the stand (7) via a bearing, a gear ring (72) is provided on the outer surface of the roller (71), a driving gear (73) meshing with the gear ring (72) is fixed to the output end of the drive motor (6), and three connecting rods (9) of different lengths are arranged in a circular array at one end of the roller (71), and the three winding rollers (8) are fixedly connected to the winding drum (81) via the three connecting rods (9), respectively.

5. The processing device for a photoelectric composite waterproof and flame-retardant cable according to claim 4, characterized in that: The fixing frame (4) comprises two side panels (41), the two side panels (41) are symmetrically arranged on the top of the mounting frame (3), and two fixing members (42) are arranged symmetrically between the two side panels (41); The fixing member (42) includes a top plate (421), the outer side of the top plate (421) is provided with a fixing plate (422) for fixing the fixing member (42) and the side plate (41), the inner side of the top plate (421) is symmetrically provided with two buffer rods (423), and the ends of the two buffer rods (423) away from the top plate (421) are fixedly mounted with a fixing block (424), and a roller (425) is provided between the two fixing blocks (424).

6. The processing device for a photoelectric composite waterproof and flame-retardant cable according to claim 5, characterized in that: The middle portion of the outer surface of the roller (425) is configured as a concave surface that matches the shape of the first filling layer (14).

7. The processing device for a photoelectric composite waterproof and flame-retardant cable according to claim 5, characterized in that: The buffer rod (423) includes a sleeve (4231) fixedly connected to the fixed block (424) and a shaft (4232) fixedly connected to the top plate (421), and the shaft (4232) is slidably installed in the sleeve (4231). One end of the shaft (4232) located in the sleeve (4231) is provided with a slide (4233) slidably connected to the sleeve (4231), and a spring (4234) is provided between the slide (4233) and the bottom wall of the sleeve (4231).

8. The processing device for a photoelectric composite waterproof and flame-retardant cable according to claim 4, characterized in that: The winding roller (8) comprises a winding drum (81) and a baffle (85) rotatably connected to a connecting rod (9); an insertion rod (84) is provided at one end of the baffle (85) away from the connecting rod (9); and a protrusion is provided on the outer surface of the insertion rod (84); a mounting hole (83) for use with the insertion rod (84) is provided in the middle of the winding drum (81) and the limiting plate (82); limiting plates (82) are provided at both ends of the winding drum (81); and a blocking device is provided at one end of the insertion rod (84).

9. The processing device for a photoelectric composite waterproof and flame-retardant cable according to claim 8, characterized in that: The blocking device comprises a fixed box (841), T-shaped plates (842) are slidably mounted on both sides of the inner cavity of the fixed box (841), and the ends of the T-shaped plates (842) that are away from each other pass through the fixed box (841) and extend to the outside and are fixed with a counterweight (843).

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