Environment-friendly cable with protection function and preparation method

Abstract

The invention relates to the technical field of cables, and discloses an environment-friendly cable with a protection function and a preparation method. Comprising an inner steel cable and further comprises a retroflexure spring which is arranged on the inner steel cable in a sleeving mode, an inner sleeve is arranged on the retroflexure spring in a sleeving mode, a set of first rolling connecting pieces which are regularly distributed are installed on the inner sleeve, a round supporting body is arranged on the outer sides of the first rolling connecting pieces, and a set of air containing cavities which are regularly distributed and a set of glue containing cavities which are regularly distributed are formed in the round supporting body; each air containing cavity is internally provided with a battery cell module and is filled with carbon dioxide, and each glue containing cavity is internally provided with an anti-buckling assembly and a group of regularly distributed second rolling connecting pieces. The cable has multidirectional compression resistance, passive fire prevention and active fire extinguishing performance in use, the cable is structurally provided with an anti-wear protection structure, the service life of the cable is effectively prolonged, and meanwhile, the cable is provided with an electric leakage color development and temperature change color development structure, so that the working state of the cable can be monitored in real time.

Description

Technical Field

[0001] The invention relates to the technical field of cables, and in particular to an environmentally friendly cable with a protective function and a preparation method thereof. Background Art

[0002] Wires and cables are wire products used to transmit electrical (magnetic) energy, information and realize electromagnetic energy conversion. Wires and cables in a broad sense are also referred to as cables. Cables in a narrow sense refer to insulated cables, which can be defined as: a collection of the following parts; one or more insulated cores, and their respective coatings, total protective layers and outer sheaths. Cables may also have additional uninsulated conductors.

[0003] In the prior art, a patent document with publication number CN112670020B discloses a self-protective fireproof cable, comprising an inner sheath and three cable cores arranged inside the inner sheath, wherein the three cable cores are arranged in a circular array inside the inner sheath with the inner sheath center as the center, and the cable core comprises a conductor, an insulating layer wrapped around the outside of the conductor and a cable core protective layer wrapped around the outside of the insulating layer, and a cable strengthening core is arranged inside the inner sheath. A shielding layer is added between the inner sheath and the outer sheath of the cable, so as to further enhance the comprehensive performance of the cable such as fire resistance, anti-interference and anti-aging, but the cable cannot have multi-directional pressure resistance, passive fire protection and active fire extinguishing performance when in use, and at the same time, no anti-wear protection structure, leakage current color display and temperature change color display structure are provided in the structure, so it is not convenient to monitor the working status of the cable in real time. Based on this, the present invention provides an environmentally friendly cable with protective function and a preparation method thereof, so as to solve the technical problems raised in the above background technology. Summary of the invention

[0004] The purpose of the present invention is to provide an environmentally friendly cable with protective function and a preparation method, which solves the problem that the existing cables in the background technology cannot have multi-directional pressure resistance, passive fire protection and active fire extinguishing performance when in use, and at the same time, the structure does not have an anti-wear protection structure, leakage current color display and temperature change color display structure, which makes it inconvenient to monitor the working status of the cable in real time.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] An environmentally friendly cable with protective function, comprising an inner steel cable, and further comprising:

[0007] A recurved spring is sleeved on the inner steel cable, an inner sleeve is sleeved on the recurved spring, and a group of regularly distributed first rolling connectors are installed on the inner sleeve;

[0008] A circular support body is arranged outside the first rolling connector, and a group of regularly distributed air cavities and a group of regularly distributed rubber cavities are opened inside the circular support body, a battery module is installed inside each of the air cavities and filled with carbon dioxide, and an anti-buckling component is installed inside each of the rubber cavities;

[0009] A group of regularly distributed second rolling connectors, each of which is sleeved on the round support body;

[0010] The shielding roller sleeve is sleeved on the second rolling element. A positive bending spring is sleeved on the shielding roller sleeve. The outer side of the positive bending spring is sleeved with an early warning color display and gas display component.

[0011] Preferably, a group of air cavities and a group of rubber cavities are arranged on the circular support body in pairs, and the filling pressure of carbon dioxide in the air cavities is 200kpa-260kpa.

[0012] Preferably, the battery cell module includes a core sleeve arranged in the air volume cavity, a cable body is installed inside the core sleeve, a group of regularly distributed connecting rubber strips are installed on the core sleeve, each of the connecting rubber strips is fixedly connected to the circular support body, and each of the connecting rubber strips is provided with an air hole inside.

[0013] Preferably, the circular support body, the core sleeve and the connecting rubber strip are all made of TPU material.

[0014] Preferably, the anti-buckling component includes an elastomer arranged in a rubber-containing cavity, a spacer is arranged inside the elastomer, an outer steel cable is arranged inside the spacer, an anti-torsion spring is sleeved on the outer steel cable, and the elastomer is made of rubber material.

[0015] Preferably, the first rolling connector and the second rolling connector both include positioning rings, a group of steel balls distributed in a circular array are embedded on the positioning rings, the positioning ring in the first rolling connector is fixed on the inner sleeve, the steel balls in the first rolling connector are fitted with the circular support body, the positioning ring in the second rolling connection is fixed on the circular support body, the steel balls in the second rolling member are fitted with the shielding rolling sleeve, and the positioning ring is made of silicone.

[0016] Preferably, the spiral directions of the positive curved spring and the reverse curved spring are opposite, the pitch of the positive curved spring is 3cm-10cm, the shielding roller sleeve is made of aluminum, and the thickness of the leakage current color development layer is 4mm-8mm.

[0017] Preferably, the early warning color display and gas display component includes a transparent sheath, an odor layer is arranged in the transparent sheath, the odor layer is filled with an odorant, the transparent sheath is sleeved on the positive bending spring, the positive bending spring is coated with a thermochromic paint, the outer ring of the shielding roller sleeve is provided with a leakage color display layer, and the leakage color display layer is a mixture of conductive silver glue and electroluminescent powder.

[0018] Preferably, the weight ratio of the conductive silver paste and the electroluminescent powder when mixed is 1:2, the coating thickness of the thermochromic coating is 3mm-6mm, the transparent sheath is made of transparent self-healing rubber material, and the thickness of the transparent sheath is 1cm-2cm.

[0019] The present invention also provides a method for preparing an environmentally friendly cable with a protective function, comprising the following steps:

[0020] SS01, round support body extrusion, TPU plastic particles, flame retardant, peroxide crosslinking agent, antioxidant and lubricant are added to a high-speed mixer in a specified weight ratio for mixing. When the mixer is mixing materials, the speed of the mixer is 550 / min-650r / min, the temperature of the mixer is set to 135°C-145°C during material mixing, and the material mixing time is 10min-20min. After mixing, a hot melt mixture is obtained, and the hot melt mixture is put into a twin-screw extruder for extrusion. When the extruder is extruding the hot melt, a specified mold is installed at the discharge end of the extruder. When the extruder is working, the extrusion temperature is set to 180°C-200°. After the hot melt is extruded through the mold, it is water-cooled and shaped. After the water-cooling and shaping is completed, the round support body is then obtained;

[0021] SS02, inflation. After step SS01, an air chamber is formed inside the circular support body. Both ends of the air chamber are sealed. After the sealing is completed, carbon dioxide is injected into the air chamber until the air pressure value inside the air chamber reaches 200kpa-260kpa.

[0022] SS03, material preparation, prepare the inner steel cable and the outer steel cable of the specified specifications in advance, after the outer steel cable and the inner steel cable are prepared, use the winding machine to wind the spring strip on the outside of the inner steel cable, and then make the recurved spring on the outside of the outer steel cable, and wind the spring strip on the outside of the outer steel cable, and then make the torsion spring on the outside of the outer steel cable;

[0023] SS04, extrusion, adding rubber particles and flame retardant in a specified weight ratio into a high-speed mixer for high-temperature mixing, after mixing, a hot-melt mixture is obtained, the hot-melt mixture is put into a twin-screw extruder for extrusion, when the extruder extrude the hot-melt material, a specified mold is installed at the discharge end of the extruder, after the hot-melt material is extruded through the mold, water-cooled and shaped, after the water-cooling and shaping is completed, the elastomer is then obtained;

[0024] SS05, coating preparation, prepare a normal curved spring of specified specifications and compatible with the shielding roller sleeve. When the normal curved spring is selected, the pitch of the normal curved spring is set to 3cm-10cm. After the normal curved spring is prepared, pre-prepare the thermochromic coating, and cover the prepared thermochromic coating on the normal curved spring. The coating thickness of the thermochromic coating on the normal curved spring is 3mm-6mm;

[0025] SS06, shielding roller sleeve preparation, select aluminum ingots to melt and add them into the specified mold for forming, after forming, put them into water for water cooling and shaping, and then make the shielding roller sleeve, after the shielding roller sleeve is prepared, the conductive silver glue and the electroluminescent powder are mixed in a weight ratio of 1:2 to make the fluorescent coating, after the fluorescent coating is prepared, the prepared fluorescent coating is applied on the shielding roller sleeve to make the leakage color layer, the thickness of the leakage color layer is 4mm-8mm;

[0026] SS07, assembling, assembling the inner steel cable, outer steel cable, round support body and shielding roller sleeve in sequence, and then obtaining an environmentally friendly cable with protective function.

[0027] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0028] 1. This cable has multi-directional pressure resistance, passive fire protection and active fire extinguishing performance when in use, and the device is structurally provided with an anti-wear protection structure, thereby effectively improving the service life of the cable. At the same time, the cable is provided with a leakage color display and a temperature change color display structure, thereby being able to monitor the working status of the cable in real time.

[0029] 2. The present invention adopts the gas filling arrangement of carbon dioxide inside the air volume cavity. On the one hand, it can effectively improve the pressure resistance of the cable and the self-resetting performance of the device after pressure resistance through inflation. On the other hand, the cable body can use carbon dioxide to achieve self-fire protection and self-extinguishing of the cable body when a fire occurs or sparks are generated, thereby making the cable body have passive fire protection and active fire extinguishing performance, thereby improving the self-protection effect of the device.

[0030] 3. The present invention provides a first rolling connector and a second rolling connector, so that when the cable is subjected to friction, the circular support body, the transparent sheath and the inner sheath can undergo driven rolling. By the driven rolling of the circular support body, the transparent sheath and the inner sheath when they are subjected to friction, the friction strength between the circular support body, the transparent sheath and the inner sheath and the friction object is effectively reduced, thereby effectively improving the wear resistance of the cable and assisting in increasing the service life of the cable.

[0031] 3. The present invention sets the pitch of the positive spring so that the color of the leakage color-displaying layer can leak out through the transparent sheath, which makes it easy for outsiders to observe the color of the leakage color-displaying layer. When the cable leaks electricity, ions flow into the leakage color-displaying layer. After the ions are introduced into the leakage color-displaying layer, fluorescence is generated, which warns and reminds outsiders of the leakage. By setting the thermochromic coating, the color of the thermochromic coating can change with the change of the cable, which makes it easy for outsiders or operators to monitor the working status of the cable and whether it works normally in real time. By setting the odor layer, the cable can leak odor when sheared by external force, thereby improving the shear resistance warning effect of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of an environmentally friendly cable with protective function;

[0033] Figure 2 for Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;

[0034] Figure 3 It is a schematic diagram of the structure of the shielding roller sleeve and the transparent sheath;

[0035] Figure 4 It is a schematic diagram of the structure of the round support body and the steel ball;

[0036] Figure 5 It is a front view structural diagram of the circular support body and the air volume cavity;

[0037] Figure 6 It is a schematic diagram of the cross-sectional structure of the leakage color development layer and the shielding roller sleeve.

[0038] Among them: 1. Inner steel cable; 2. Recurved spring; 3. Inner sleeve; 4. Round support body; 5. Air chamber; 6. Rubber chamber; 7. Shielding roller sleeve; 8. Curved spring; 9. Core sleeve; 10. Cable body; 11. Connecting rubber strip; 12. Elastomer; 13. Spacer; 14. Outer steel cable; 15. Torsion spring; 16. Positioning ring; 17. Steel ball; 18. Transparent sheath; 19. Odor layer; 20. Leakage color display layer. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] Embodiment 1

[0041] See also Figure 1-6 , an environmentally friendly cable with protective function, comprising an inner steel cable 1, and also comprising:

[0042] The recurved spring 2 is sleeved on the inner steel cable 1, the recurved spring 2 is sleeved with an inner sleeve 3, and a group of regularly distributed first rolling connectors are installed on the inner sleeve 3;

[0043] The circular support body 4 is arranged outside the first rolling connector, and a group of regularly distributed air cavities 5 and a group of regularly distributed rubber cavities 6 are provided inside the circular support body 4;

[0044] A group of air cavities 5 and a group of glue cavities 6 are arranged on the circular support body 4 in pairs.

[0045] Each gas volume cavity 5 is equipped with a battery cell module and filled with carbon dioxide;

[0046] The battery module includes a core sleeve 9 arranged in the air volume cavity 5, a cable body 10 is installed inside the core sleeve 9, a group of regularly distributed connecting rubber strips 11 are installed on the core sleeve 9, each connecting rubber strip 11 is fixedly connected to the round support body 4, and each connecting rubber strip 11 is provided with a vent hole inside;

[0047] The filling pressure of carbon dioxide in the gas volume chamber 5 is 200 kPa;

[0048] By setting the gas filling of carbon dioxide inside the gas volume chamber 5, on the one hand, the compression resistance of the cable and the self-resetting performance of the device after compression resistance can be effectively improved by inflation, and on the other hand, the cable body 10 can use carbon dioxide to achieve self-fire protection and self-extinguishing of the cable body 10 when a fire or spark occurs, and then the cable body 10 has passive fire protection and active fire extinguishing performance, thereby improving the self-protection effect of the device;

[0049] The round support body 4, the core sleeve 9 and the connecting rubber strip 11 are all made of TPU;

[0050] By setting the TPU material of the round support body 4, the core sleeve 9 and the connecting rubber strip 11, the elastic strength and self-resetting strength of the cable are effectively improved;

[0051] Each of the glue containing cavities 6 is provided with an anti-buckling component;

[0052] The anti-buckling assembly includes an elastic body 12 disposed in the rubber containing cavity 6, a spacer 13 is disposed inside the elastic body 12, an outer steel cable 14 is disposed inside the spacer 13, an anti-torsion spring 15 is sleeved on the outer steel cable 14, and the elastic body 12 is made of rubber material;

[0053] By setting the elastic body 12, the compressive strength, self-resetting strength after pressure loss and elastic strength of the cable are further improved, thereby helping to improve the compressive strength and compression resistance of the cable.

[0054] A group of regularly distributed second rolling connectors, each of which is sleeved on the round support body 4;

[0055] The first rolling connection and the second rolling connection both include a positioning ring 16, on which a group of steel balls 17 distributed in a circumferential array are embedded, the positioning ring 16 in the first rolling connection is fixed on the inner sleeve 3, the steel balls 17 in the first rolling connection fit with the round support body 4, the positioning ring 16 in the second rolling connection is fixed on the round support body 4, the steel balls 17 in the second rolling element fit with the shielding roller sleeve 7, and the positioning ring 16 is made of silicone;

[0056] By setting the first rolling connector and the second rolling connector, the circular support body 4, the transparent sheath 18 and the inner sleeve 3 can be driven to roll when the cable is subjected to friction. The driven rolling of the circular support body 4, the transparent sheath 18 and the inner sleeve 3 when subjected to friction effectively reduces the friction strength between the circular support body 4, the transparent sheath 18 and the inner sleeve 3 and the friction object, thereby effectively improving the wear resistance of the cable and assisting in improving the service life of the cable.

[0057] The shielding roller sleeve 7 is sleeved on the second rolling element. A positive spring 8 is sleeved on the shielding roller sleeve 7. The outer side of the positive spring 8 is sleeved with an early warning color display and gas display component.

[0058] The spiral directions of the positive spring 8 and the reverse spring 2 are opposite;

[0059] By setting the positive bending spring 8 and the reverse bending spring 2 and setting the spiral directions of the positive bending spring 8 and the reverse bending spring 2 in opposite directions, the anti-twisting and anti-shearing performance of the cable is effectively improved;

[0060] The pitch of the normal-curve spring 8 is 3 cm, the shielding roller sleeve 7 is made of aluminum, and the thickness of the leakage color-developing layer 20 is 4 mm.

[0061] By setting the pitch of the positive spring 8, the color of the leakage current color developing layer 20 can leak out through the transparent sheath 18, which makes it easier for outsiders to observe the color of the leakage current color developing layer 20;

[0062] The early warning color display and gas display component includes a transparent sheath 18, an odor layer 19 is arranged in the transparent sheath 18, and the odor layer 19 is filled with an odor agent. The transparent sheath 18 is sleeved on the straight spring 8, and the straight spring 8 is coated with a thermochromic paint. The outer ring of the shielding roller sleeve 7 is provided with a leakage color display layer 20, and the leakage color display layer 20 is a mixture of conductive silver glue and electroluminescent powder.

[0063] The weight ratio of the conductive silver paste and the electroluminescent powder when mixed is 1:2, the coating thickness of the thermochromic coating is 3 mm, the transparent sheath 18 is made of transparent self-healing rubber material, and the thickness of the transparent sheath 18 is 1 cm.

[0064] When the cable has leakage, ions flow into the leakage color-developing layer 20, and the leakage color-developing layer 20 generates fluorescence after the ions enter, and then warns and reminds the outsiders of leakage.

[0065] By setting the thermochromic paint, the color of the thermochromic paint can change with the change of the cable, which makes it convenient for outsiders or operators to monitor the working status of the cable and whether it works normally in real time;

[0066] By setting the odor layer 19, the cable can leak out odor when it is sheared by external force, thereby improving the shear resistance warning effect of the cable;

[0067] The present invention also provides a method for preparing an environmentally friendly cable with a protective function, comprising the following steps:

[0068] SS01, round support body 4 is extruded, TPU plastic particles, flame retardant, peroxide crosslinking agent, antioxidant and lubricant are added to a high-speed mixer in a specified weight ratio for mixing. When the mixer is mixing materials, the speed of the mixer is 550 / min, the temperature of the mixer is set to 135°C during material mixing, and the material mixing time is 10min. After mixing, a hot melt mixture is obtained, and the hot melt mixture is put into a twin-screw extruder for extrusion. When the extruder is extruding the hot melt, a specified mold is installed at the discharge end of the extruder. When the extruder is working, the extrusion temperature is set to 180°C. After the hot melt is extruded through the mold, it is water-cooled and shaped. After the water-cooling and shaping is completed, the round support body 4 is then obtained;

[0069] SS02, inflation. After step SS01, an air chamber 5 is formed inside the circular support body 4. Both ends of the air chamber 5 are sealed. After the sealing is completed, carbon dioxide is injected into the air chamber 5 until the air pressure value inside the air chamber 5 reaches 200 kPa.

[0070] SS03, material preparation, prepare the inner steel cable 1 and the outer steel cable 14 of the specified specifications in advance, after the outer steel cable 14 and the inner steel cable 1 are prepared, use the winding machine to wind the spring strip on the outside of the inner steel cable 1, and then make the recurved spring 2 on the outside of the outer steel cable 14, and wind the spring strip on the outside of the outer steel cable 14, and then make the torsion spring 15 on the outside of the outer steel cable 14;

[0071] SS04, extrusion, adding rubber particles and flame retardant in a specified weight ratio into a high-speed mixer for high-temperature mixing, after mixing, obtaining a hot-melt mixture, putting the hot-melt mixture into a twin-screw extruder for extrusion, when the extruder extrude the hot-melt material, installing a specified mold at the discharge end of the extruder, after the hot-melt material is extruded through the mold, water-cooling and shaping, after water-cooling and shaping are completed, then obtaining the elastomer 12;

[0072] SS05, coating preparation, prepare a straight spring 8 of specified specifications and adapted to the shielding roller sleeve 7. When the straight spring 8 is selected, the pitch of the straight spring 8 is set to 3cm. After the straight spring 8 is prepared, pre-prepare the thermochromic coating, and cover the prepared thermochromic coating on the straight spring 8. The coating thickness of the thermochromic coating on the straight spring 8 is 3mm;

[0073] SS06, shielding roller sleeve preparation, select aluminum ingots for hot melting and add them into a designated mold for forming, and after forming, put them into water for water cooling and shaping, and then prepare shielding roller sleeve 7, after the shielding roller sleeve 7 is prepared, the conductive silver glue and the electroluminescent powder are mixed in a weight ratio of 1:2 to prepare fluorescent paint, after the fluorescent paint is prepared, the prepared fluorescent paint is applied on the shielding roller sleeve 7 to prepare the leakage color development layer 20, and the thickness of the leakage color development layer 20 is 4mm;

[0074] SS07, assembling, assembling the inner steel cable 1, the outer steel cable 14, the round support body 4, and the shielding roller sleeve 7 in sequence, and then obtaining an environmentally friendly cable with protective function.

[0075] Embodiment 2

[0076] See also Figure 1-6 , an environmentally friendly cable with protective function, comprising an inner steel cable 1, and also comprising:

[0077] The recurved spring 2 is sleeved on the inner steel cable 1, the recurved spring 2 is sleeved with an inner sleeve 3, and a group of regularly distributed first rolling connectors are installed on the inner sleeve 3;

[0078] The circular support body 4 is arranged outside the first rolling connector, and a group of regularly distributed air cavities 5 and a group of regularly distributed rubber cavities 6 are provided inside the circular support body 4;

[0079] A group of air cavities 5 and a group of glue cavities 6 are arranged on the circular support body 4 in pairs.

[0080] Each gas volume cavity 5 is equipped with a battery cell module and filled with carbon dioxide;

[0081] The battery module includes a core sleeve 9 arranged in the air volume cavity 5, a cable body 10 is installed inside the core sleeve 9, a group of regularly distributed connecting rubber strips 11 are installed on the core sleeve 9, each connecting rubber strip 11 is fixedly connected to the round support body 4, and each connecting rubber strip 11 is provided with a vent hole inside;

[0082] The filling pressure of carbon dioxide in the gas volume chamber 5 is 260kpa;

[0083] By setting the gas filling of carbon dioxide inside the gas volume chamber 5, on the one hand, the compression resistance of the cable and the self-resetting performance of the device after compression resistance can be effectively improved by inflation, and on the other hand, the cable body 10 can use carbon dioxide to achieve self-fire protection and self-extinguishing of the cable body 10 when a fire or spark occurs, and then the cable body 10 has passive fire protection and active fire extinguishing performance, thereby improving the self-protection effect of the device;

[0084] The round support body 4, the core sleeve 9 and the connecting rubber strip 11 are all made of TPU;

[0085] By setting the TPU material of the round support body 4, the core sleeve 9 and the connecting rubber strip 11, the elastic strength and self-resetting strength of the cable are effectively improved;

[0086] Each of the glue containing cavities 6 is provided with an anti-buckling component;

[0087] The anti-buckling assembly includes an elastic body 12 disposed in the rubber containing cavity 6, a spacer 13 is disposed inside the elastic body 12, an outer steel cable 14 is disposed inside the spacer 13, an anti-torsion spring 15 is sleeved on the outer steel cable 14, and the elastic body 12 is made of rubber material;

[0088] By setting the elastic body 12, the compressive strength, self-resetting strength after pressure loss and elastic strength of the cable are further improved, thereby helping to improve the compressive strength and compression resistance of the cable.

[0089] A group of regularly distributed second rolling connectors, each of which is sleeved on the round support body 4;

[0090] The first rolling connection and the second rolling connection both include a positioning ring 16, on which a group of steel balls 17 distributed in a circumferential array are embedded, the positioning ring 16 in the first rolling connection is fixed on the inner sleeve 3, the steel balls 17 in the first rolling connection fit with the round support body 4, the positioning ring 16 in the second rolling connection is fixed on the round support body 4, the steel balls 17 in the second rolling element fit with the shielding roller sleeve 7, and the positioning ring 16 is made of silicone;

[0091] By setting the first rolling connector and the second rolling connector, the circular support body 4, the transparent sheath 18 and the inner sleeve 3 can be driven to roll when the cable is subjected to friction. The driven rolling of the circular support body 4, the transparent sheath 18 and the inner sleeve 3 when subjected to friction effectively reduces the friction strength between the circular support body 4, the transparent sheath 18 and the inner sleeve 3 and the friction object, thereby effectively improving the wear resistance of the cable and assisting in improving the service life of the cable.

[0092] The shielding roller sleeve 7 is sleeved on the second rolling element. A positive spring 8 is sleeved on the shielding roller sleeve 7. The outer side of the positive spring 8 is sleeved with an early warning color display and gas display component.

[0093] The spiral directions of the positive spring 8 and the reverse spring 2 are opposite;

[0094] By setting the positive bending spring 8 and the reverse bending spring 2 and setting the spiral directions of the positive bending spring 8 and the reverse bending spring 2 in opposite directions, the anti-twisting and anti-shearing performance of the cable is effectively improved;

[0095] The pitch of the normal-curve spring 8 is 10 cm, the shielding roller sleeve 7 is made of aluminum, and the thickness of the leakage color-developing layer 20 is 8 mm.

[0096] By setting the pitch of the positive spring 8, the color of the leakage current color developing layer 20 can leak out through the transparent sheath 18, which makes it easier for outsiders to observe the color of the leakage current color developing layer 20;

[0097] The early warning color display and gas display component includes a transparent sheath 18, an odor layer 19 is arranged in the transparent sheath 18, and the odor layer 19 is filled with an odor agent. The transparent sheath 18 is sleeved on the straight spring 8, and the straight spring 8 is coated with a thermochromic paint. The outer ring of the shielding roller sleeve 7 is provided with a leakage color display layer 20, and the leakage color display layer 20 is a mixture of conductive silver glue and electroluminescent powder.

[0098] The weight ratio of the conductive silver paste and the electroluminescent powder when mixed is 1:2, the coating thickness of the thermochromic coating is 6 mm, the transparent sheath 18 is made of transparent self-healing rubber material, and the thickness of the transparent sheath 18 is 2 cm.

[0099] When the cable has leakage, ions flow into the leakage color-developing layer 20, and the leakage color-developing layer 20 generates fluorescence after the ions enter, and then warns and reminds the outsiders of leakage.

[0100] By setting the thermochromic paint, the color of the thermochromic paint can change with the change of the cable, which makes it convenient for outsiders or operators to monitor the working status of the cable and whether it works normally in real time;

[0101] By setting the odor layer 19, the cable can leak out odor when it is sheared by external force, thereby improving the shear resistance warning effect of the cable;

[0102] The present invention also provides a method for preparing an environmentally friendly cable with a protective function, comprising the following steps:

[0103] SS01, round support body 4 is extruded, TPU plastic particles, flame retardant, peroxide crosslinking agent, antioxidant and lubricant are added to a high-speed mixer in a specified weight ratio for mixing. When the mixer is mixing materials, the speed of the mixer is 650r / min, the temperature of the mixer is set to 145°C during material mixing, and the material mixing time is 20min. After mixing, a hot melt mixture is obtained, and the hot melt mixture is put into a twin-screw extruder for extrusion. When the extruder is extruding the hot melt, a specified mold is installed at the discharge end of the extruder. When the extruder is working, the extrusion temperature is set to 200°. After the hot melt is extruded through the mold, it is water-cooled and shaped. After the water-cooling and shaping is completed, the round support body 4 is then obtained;

[0104] SS02, inflation. After step SS01, an air chamber 5 is formed inside the circular support body 4. Both ends of the air chamber 5 are sealed. After the sealing is completed, carbon dioxide is injected into the air chamber 5 until the air pressure value inside the air chamber 5 reaches 260 kPa.

[0105] SS03, material preparation, prepare the inner steel cable 1 and the outer steel cable 14 of the specified specifications in advance, after the outer steel cable 14 and the inner steel cable 1 are prepared, use the winding machine to wind the spring strip on the outside of the inner steel cable 1, and then make the recurved spring 2 on the outside of the outer steel cable 14, and wind the spring strip on the outside of the outer steel cable 14, and then make the torsion spring 15 on the outside of the outer steel cable 14;

[0106] SS04, extrusion, adding rubber particles and flame retardant in a specified weight ratio into a high-speed mixer for high-temperature mixing, after mixing, obtaining a hot-melt mixture, putting the hot-melt mixture into a twin-screw extruder for extrusion, when the extruder extrude the hot-melt material, installing a specified mold at the discharge end of the extruder, after the hot-melt material is extruded through the mold, water-cooling and shaping, after water-cooling and shaping are completed, then obtaining the elastomer 12;

[0107] SS05, coating preparation, prepare a straight spring 8 of specified specifications and adapted to the shielding roller sleeve 7. When the straight spring 8 is selected, the pitch of the straight spring 8 is set to 10 cm. After the straight spring 8 is prepared, pre-prepare the thermochromic coating, and cover the prepared thermochromic coating on the straight spring 8. The coating thickness of the thermochromic coating on the straight spring 8 is 6 mm;

[0108] SS06, shielding roller sleeve preparation, select aluminum ingots for hot melting and add them into a designated mold for forming, after forming, put them into water for water cooling and shaping, and then prepare shielding roller sleeve 7, after the shielding roller sleeve 7 is prepared, the conductive silver glue and the electroluminescent powder are mixed in a weight ratio of 1:2 to prepare fluorescent paint, after the fluorescent paint is prepared, the prepared fluorescent paint is applied on the shielding roller sleeve 7 to prepare the leakage color development layer 20, the thickness of the leakage color development layer 20 is 8mm;

[0109] SS07, assembling, assembling the inner steel cable 1, the outer steel cable 14, the round support body 4, and the shielding roller sleeve 7 in sequence, and then obtaining an environmentally friendly cable with protective function.

[0110] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations may be made to the embodiments without departing from the principles and spirit thereof, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An environmentally friendly cable with protective function, comprising an inner steel cable (1), characterized in that: Also includes: A recurved spring (2) is sleeved on the inner steel cable (1), an inner sleeve (3) is sleeved on the recurved spring (2), and a group of regularly distributed first rolling connectors are installed on the inner sleeve (3); A circular support body (4) is arranged outside the first rolling connector, and a group of regularly distributed air cavities (5) and a group of regularly distributed rubber cavities (6) are provided inside the circular support body (4), a battery cell module is installed inside each of the air cavities (5) and is filled with carbon dioxide, and an anti-buckling component is installed inside each of the rubber cavities (6); A group of regularly distributed second rolling connectors, each of which is sleeved on the circular support body (4); The shielding roller sleeve (7) is sleeved on the second rolling element. A positive spring (8) is sleeved on the shielding roller sleeve (7). The outer side of the positive spring (8) is sleeved with an early warning color display and gas display component.

2. The environmentally friendly cable with protective function according to claim 1, characterized in that: A group of air cavities (5) and a group of rubber cavities (6) are arranged on the circular support body (4) in pairs, and the filling pressure of carbon dioxide in the air cavities (5) is 200 kPa-260 kPa.

3. The environmentally friendly cable with protective function according to claim 1, characterized in that: The battery cell module comprises a core sleeve (9) arranged in an air volume cavity (5), a cable body (10) is installed inside the core sleeve (9), a group of regularly distributed connecting rubber strips (11) are installed on the core sleeve (9), each of the connecting rubber strips (11) is fixedly connected to the round support body (4), and each of the connecting rubber strips (11) is provided with an air vent inside.

4. The environmentally friendly cable with protective function according to claim 3, characterized in that: The circular support body (4), the core sleeve (9) and the connecting rubber strip (11) are all made of TPU material.

5. The environmentally friendly cable with protective function according to claim 4, characterized in that: The anti-buckling component comprises an elastic body (12) arranged in a rubber containing cavity (6), a spacer (13) is arranged inside the elastic body (12), an outer steel cable (14) is arranged inside the spacer (13), an anti-torsion spring (15) is sleeved on the outer steel cable (14), and the elastic body (12) is made of rubber material.

6. The environmentally friendly cable with protective function according to claim 5, characterized in that: The first rolling connection member and the second rolling connection member both comprise a positioning ring (16), on which a group of steel balls (17) distributed in a circumferential array are embedded, the positioning ring (16) in the first rolling connection member is fixed on the inner sleeve (3), the steel balls (17) in the first rolling connection member are fitted with the circular support body (4), the positioning ring (16) in the second rolling connection member is fixed on the circular support body (4), the steel balls (17) in the second rolling member are fitted with the shielding rolling sleeve (7), and the positioning ring (16) is made of silicone material.

7. The environmentally friendly cable with protective function according to claim 1, characterized in that: The spiral directions of the positive curved spring (8) and the reverse curved spring (2) are opposite, the pitch of the positive curved spring (8) is 3 cm-10 cm, and the shielding roller sleeve (7) is made of aluminum.

8. The environmentally friendly cable with protective function according to claim 6, characterized in that: The early warning color display and gas display component comprises a transparent sheath (18), an odor layer (19) is arranged in the transparent sheath (18), and the odor layer (19) is filled with an odor agent. The transparent sheath (18) is sleeved on the straight spring (8), and the straight spring (8) is coated with a thermochromic paint. The outer ring of the shielding roller sleeve (7) is provided with a leakage color display layer (20), and the leakage color display layer (20) is a mixture of conductive silver glue and electroluminescent powder. The thickness of the leakage color display layer (20) is 4mm-8mm.

9. The environmentally friendly cable with protective function according to claim 8, characterized in that: The weight ratio of the conductive silver paste and the electroluminescent powder when mixed is 1:2, the coating thickness of the thermochromic paint is 3mm-6mm, the transparent sheath (18) is made of a transparent self-healing rubber material, and the thickness of the transparent sheath (18) is 1cm-2cm.

10. A method for preparing an environmentally friendly cable with protective function as claimed in claim 9, characterized in that: The following steps are involved: SS01, round support body (4) extrusion, TPU plastic particles, flame retardant, peroxide crosslinking agent, antioxidant and lubricant are added to a high-speed mixer in a specified weight ratio for mixing. When the mixer is mixing materials, the speed of the mixer is 550 / min-650r / min, the temperature of the mixer is set to 135°C-145°C during material mixing, and the material mixing time is 10min-20min. After mixing, a hot melt mixture is obtained, and the hot melt mixture is put into a twin-screw extruder for extrusion. When the extruder is extruding the hot melt, a specified mold is installed at the discharge end of the extruder. When the extruder is working, the extrusion temperature is set to 180°C-200°. After the hot melt is extruded through the mold, it is water-cooled and shaped. After the water-cooling and shaping is completed, the round support body (4) is obtained. SS02, inflation. After step SS01, an air chamber (5) is formed inside the circular support body (4). Both ends of the air chamber (5) are sealed. After the sealing is completed, carbon dioxide is injected into the air chamber (5) until the air pressure value inside the air chamber (5) reaches 200 kPa-260 kPa. SS03, material preparation, preparing an inner steel cable (1) and an outer steel cable (14) of specified specifications in advance, after the outer steel cable (14) and the inner steel cable (1) are prepared, using a winding machine to wind a spring strip on the outside of the inner steel cable (1), and then to make a recurved spring (2) on the outside of the outer steel cable (14), and then to wind a spring strip on the outside of the outer steel cable (14), and then to make a torsion spring (15) on the outside of the outer steel cable (14); SS04, extrusion, adding rubber particles and flame retardant in a specified weight ratio into a high-speed mixer for high-temperature mixing, after mixing, obtaining a hot-melt mixture, and feeding the hot-melt mixture into a twin-screw extruder for extrusion, when the extruder is extruding the hot-melt material, installing a specified mold at the discharge end of the extruder, after the hot-melt material is extruded through the mold, water-cooling and shaping, after water-cooling and shaping, then obtaining an elastomer (12); SS05, coating preparation, prepare a straight spring (8) of specified specifications and compatible with the shielding roller sleeve (7), when the straight spring (8) is selected, the pitch of the straight spring (8) is set to 3cm-10cm, after the straight spring (8) is prepared, pre-prepare a thermochromic coating, and apply the prepared thermochromic coating on the straight spring (8), the coating thickness of the thermochromic coating on the straight spring (8) is 3mm-6mm; SS06, shielding roller sleeve preparation, select aluminum ingots to melt and add them into a designated mold for forming, after forming, put them into water for water cooling and shaping, and then prepare the shielding roller sleeve (7), after the shielding roller sleeve (7) is prepared, the conductive silver glue and the electroluminescent powder are mixed in a weight ratio of 1:2 to prepare the fluorescent coating, after the fluorescent coating is prepared, the prepared fluorescent coating is coated on the shielding roller sleeve (7) to prepare the leakage color development layer (20), the thickness of the leakage color development layer (20) is 4mm-8mm; SS07, assembly, assembling the prepared inner steel cable (1), outer steel cable (14), round support body (4), and shielding roller sleeve (7) in sequence, and then preparing an environmentally friendly cable with protective function.

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