Special cable for airport illumination

Abstract

The utility model discloses a special cable for airport lighting, which relates to the technical field of airport cables and comprises a conductor, an insulating layer is arranged on the peripheral side of the conductor, an insulating shielding layer is arranged on the peripheral side of the insulating layer, a water-blocking filling layer is arranged on the peripheral side of the insulating shielding layer, and a waterproof inner protective layer is arranged on the peripheral side of the water-blocking filling layer. According to the utility model, through the structure of the water-blocking filling layer and the waterproof inner sheath layer, the longitudinal water-blocking capability and the radial water-blocking capability of the cable are enhanced, the normal work of the cable can still be ensured when an accident occurs, the protection capability of the cable is greatly improved through the braided armor layer, the cable is prevented from being damaged when bearing pressure or impact, and the service life of the cable is prolonged. The reinforced core on the anti-ultraviolet polyvinyl chloride outer sheath can ensure that the cable is not damaged or cracked when being dragged or pulled, and due to the insulating layer and the insulating shielding layer on the outer side of the conductor, effective insulation is achieved, and interference of an external magnetic field on the conductor is effectively shielded.

Description

Technical Field

[0001] The utility model relates to the technical field of airport cables, in particular to a special cable for airport lighting. Background Art

[0002] The secondary cable of airport navigation lights is an important part of the airport lighting system. To ensure flight safety, the secondary cable of airport navigation lights must meet the following requirements: First, the cable should have sufficient durability and UV resistance, and can be used for a long time under harsh weather conditions. The second cable can withstand the pressure of airport ground vehicles and pedestrians without damage or breakage. The third cable should have sufficient waterproof ability and can be used on the airport cement pavement without moisture entering and affecting its normal operation. In short, the quality and reliability of the secondary cable of airport navigation lights are crucial to airport flight safety.

[0003] Existing airport lighting cables do not have good overload protection capabilities when in use, and are easily interfered by electromagnetic fields. At the same time, they are easily damaged when pulled, and have poor water resistance.

[0004] Therefore, a new cable dedicated to airport lighting is proposed to solve the above technical problems. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings existing in the prior art, and a special cable for airport lighting is proposed. The longitudinal and radial water-blocking capabilities of the cable are enhanced by a water-blocking filling layer and a waterproof inner sheath structure, and the normal operation of the cable can be guaranteed in the event of an accident. The braided armor layer greatly improves the protection capability of the cable, and avoids damage to the cable when it is subjected to pressure or impact. The reinforcing core on the UV-proof polyvinyl chloride outer sheath can ensure that the cable will not be damaged or cracked when it is dragged or pulled. The conductor is effectively insulated by the outer insulating layer and the insulating shielding layer, and the interference of the external magnetic field to the conductor is effectively shielded.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A special cable for airport lighting, comprising a conductor, an insulating layer is arranged on the circumference of the conductor, an insulating shielding layer is arranged on the circumference of the insulating shielding layer, a water-blocking filling layer is arranged on the circumference of the water-blocking filling layer, a waterproof inner protective layer is arranged on the circumference of the waterproof inner protective layer, a braided armor layer is arranged on the circumference of the braided armor layer, an anti-ultraviolet polyvinyl chloride outer sheath is arranged on the circumference of the braided armor layer, and reinforcing cores are arranged on the inner sides of both ends of the anti-ultraviolet polyvinyl chloride outer sheath.

[0008] Through the above technical scheme: the conductor is effectively insulated by the outer insulation layer and the insulation shielding layer, and the interference of the external magnetic field on the conductor is effectively shielded. The longitudinal and radial water-blocking capabilities of the cable are enhanced through the water-blocking filling layer and the waterproof inner sheath structure, so that the normal operation of the cable can still be guaranteed in the event of an accident. The braided armor layer greatly improves the protection capability of the cable, avoiding damage to the cable when it is under pressure or impact. The reinforcing core on the UV-proof polyvinyl chloride outer sheath ensures that the cable will not be damaged or cracked when it is dragged or pulled.

[0009] The utility model is further configured such that the reinforcing core comprises an outer gear sleeve, a snap sleeve cavity and an intermediate core column, the circumferential side of the intermediate core column is provided with an outer gear sleeve, the circumferential side of the outer gear sleeve is provided with a snap sleeve cavity, and the outer gear sleeve is connected to the UV-proof polyvinyl chloride outer sheath through the snap sleeve cavity.

[0010] Through the above technical solution: by strengthening the core structure, the overall tensile strength is effectively enhanced, and tensile damage is effectively avoided.

[0011] The utility model is further configured that the conductor comprises an inner core and a chloroprene rubber outer sheath, the circumference of the inner core is provided with a chloroprene rubber outer sheath, and the chloroprene rubber outer sheath is connected to the insulating layer.

[0012] Through the above technical solution: due to the conductor structure, it is convenient to use with electricity.

[0013] The utility model is further configured such that the waterproof inner protective layer comprises a longitudinally wrapped aluminum-plastic composite tape layer, a high-density polyethylene sheath material layer and an extruded aluminum-plastic composite tape layer, the upper end of the longitudinally wrapped aluminum-plastic composite tape layer is provided with an extruded aluminum-plastic composite tape layer, the upper end of the extruded aluminum-plastic composite tape layer is provided with a high-density polyethylene sheath material layer, the longitudinally wrapped aluminum-plastic composite tape layer is connected to the braided armor layer, and the high-density polyethylene sheath material layer is connected to the water-blocking filling layer.

[0014] Through the above technical solution: due to the waterproof inner protective layer structure, it has a good waterproof effect.

[0015] The utility model is further configured that the water-blocking filling layer is made of fiber non-woven fabric and highly absorbent resin material.

[0016] Through the above technical scheme: because the water-blocking filling layer is a fiber non-woven fabric and a highly absorbent resin material, the absorbent resin forms a semi-solidified colloid with strong water-blocking performance after meeting water, which can effectively prevent moisture from penetrating into the cable along the cable axis, thereby improving the waterproof and moisture-proof ability of the cable.

[0017] The utility model is further configured that the braided armor layer is galvanized steel wire.

[0018] Through the above technical solution: because the braided armor layer is galvanized steel wire, the steel wire braided armor increases the flexibility and protection ability of the cable on the basis of ensuring the original softness of the cable, and can effectively protect the internal structure of the cable from damage when the cable is crushed or impacted.

[0019] The utility model is further configured that the reinforcing core is a multi-strand galvanized steel wire rope.

[0020] Through the above technical solution: because the reinforcing core is a multi-strand galvanized steel wire rope, when the cable is dragged or pulled, direct force is avoided inside the cable, preventing the cable from being damaged or cracked.

[0021] The utility model is further configured that the insulating layer is a cross-linked polyethylene insulating material.

[0022] Through the above technical solution: because the insulating layer is a cross-linked polyethylene insulating material, it is easy to process, prepare and use.

[0023] The beneficial effects of the utility model are:

[0024] 1. The water-blocking filling layer and the waterproof inner sheath structure enhance the longitudinal and radial water-blocking capabilities of the cable, ensuring the normal operation of the cable in the event of an accident. The braided armor layer greatly improves the protection of the cable, preventing the cable from being damaged when under pressure or impact. The reinforcing core on the UV-proof polyvinyl chloride outer sheath ensures that the cable will not be damaged or cracked when dragged or pulled. The conductor is effectively insulated by the outer insulation layer and the insulation shielding layer, and effectively shields the interference of the external magnetic field on the conductor.

[0025] 2. By providing a reinforcing core structure, the outer gear sleeve of the reinforcing core is connected to the UV-proof polyvinyl chloride outer sheath through a snap-on sleeve cavity, so that the outer gear sleeve is easy to place stably. The outer gear sleeve has an inner middle core column, which effectively enhances the overall strength, so that it can be ensured that the cable will not be damaged or cracked when being dragged or pulled. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the three-dimensional cross-sectional structure of a cable dedicated for airport lighting proposed by the utility model;

[0027] Figure 2 This is a schematic diagram of the layered structure of a reinforcing core of a cable dedicated for airport lighting proposed by the utility model;

[0028] Figure 3 This is a schematic diagram of the conductor layered structure of a cable dedicated for airport lighting proposed by the utility model;

[0029] Figure 4The utility model is a schematic diagram of the waterproof inner sheath structure of a cable dedicated for airport lighting.

[0030] In the figure: 1. conductor; 11. inner core; 12. neoprene outer sheath; 2. insulation layer; 3. insulation shielding layer; 4. water-blocking filling layer; 5. waterproof inner sheath; 51. longitudinally wrapped aluminum-plastic composite tape layer; 52. high-density polyethylene sheath material layer; 53. extruded aluminum-plastic composite tape layer; 6. braided armor layer; 7. UV-proof polyvinyl chloride outer sheath; 8. reinforcing core; 81. outer gear sleeve; 82. snap sleeve cavity; 83. middle core column. DETAILED DESCRIPTION

[0031] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0032] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0033] In the description of this patent, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing this patent and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this patent.

[0034] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0035] Reference Figure 1-Figure 4A cable for airport lighting, comprising a conductor 1, an insulating layer 2 is arranged around the conductor 1, an insulating shielding layer 3 is arranged around the insulating shielding layer 3, a water-blocking filling layer 4 is arranged around the insulating filling layer 4, a waterproof inner protective layer 5 is arranged around the waterproof inner protective layer 5, a braided armor layer 6 is arranged around the waterproof inner protective layer 5, an anti-ultraviolet polyvinyl chloride outer sheath 7 is arranged around the braided armor layer 6, and a reinforcing core 8 is arranged inside both ends of the anti-ultraviolet polyvinyl chloride outer sheath 7. When in use, the water-blocking filling layer 4 and the waterproof inner protective layer 5 are arranged on the inner side of the conductor 1, and the insulating shielding layer 3 is arranged on the outer side of the insulating shielding layer 3. The sheath 5 structure enhances the longitudinal and radial water-blocking capabilities of the cable, and can ensure the normal operation of the cable in the event of an accident. The braided armor layer 6 greatly improves the protection capability of the cable, and avoids damage to the cable when it is under pressure or impact. The reinforcing core 8 on the UV-proof polyvinyl chloride outer sheath 7 ensures that the cable will not be damaged or cracked when it is dragged or pulled. The conductor 1 is effectively insulated by the outer insulating layer 2 and the insulating shielding layer 3, and effectively shields the interference of the external magnetic field on the conductor 1.

[0036] Specifically, the reinforcing core 8 includes an outer gear sleeve 81, a snap sleeve cavity 82 and an intermediate core column 83. The outer gear sleeve 81 is arranged on the circumferential side of the intermediate core column 83. The snap sleeve cavity 82 is arranged on the circumferential side of the outer gear sleeve 81. The outer gear sleeve 81 is connected to the anti-UV polyvinyl chloride outer sheath 7 through the snap sleeve cavity 82. The outer gear sleeve 81 of the reinforcing core 8 is connected to the anti-UV polyvinyl chloride outer sheath 7 through the snap sleeve cavity 82, so that the outer gear sleeve 81 is easy to be placed stably. The outer gear sleeve 81 is effectively strengthened by the inner intermediate core column 83, so that the overall strength can be ensured that the cable will not be damaged or cracked when being dragged or pulled.

[0037] Specifically, the conductor 1 includes an inner core 11 and a chloroprene rubber outer sheath 12. The chloroprene rubber outer sheath 12 is arranged on the peripheral side of the inner core 11. The chloroprene rubber outer sheath 12 is connected to the insulating layer 2. The chloroprene rubber outer sheath 12 of the conductor 1 is adhesively connected to the insulating layer 2, so that the chloroprene rubber outer sheath 12 can be stably placed. The inner core 11 is a copper body, which has good conductivity, and the chloroprene rubber outer sheath 12 has excellent properties such as UV protection, wear resistance, high and low temperature resistance, oil resistance, corrosion resistance, and waterproofness.

[0038] Specifically, the waterproof inner sheath 5 includes a longitudinal aluminum-plastic composite tape layer 51, a high-density polyethylene sheath material layer 52 and an extruded aluminum-plastic composite tape layer 53. The upper end of the longitudinal aluminum-plastic composite tape layer 51 is provided with an extruded aluminum-plastic composite tape layer 53, and the upper end of the extruded aluminum-plastic composite tape layer 53 is provided with a high-density polyethylene sheath material layer 52. The longitudinal aluminum-plastic composite tape layer 51 is connected to the braided armor layer 6, and the high-density polyethylene sheath material layer 52 is connected to the water-blocking filling layer 4. When the longitudinal aluminum-plastic composite tape layer 51 and the extruded aluminum-plastic composite tape layer 53 of the waterproof inner sheath 5 are subjected to high temperature and high pressure, the overlapping parts will adhere to each other to form a closed cylindrical shape to enclose the internal cable core. Completely wrapped to prevent moisture from radially penetrating into the cable, longitudinal wrapping and extrusion wrapping are carried out simultaneously to make the overlap more firm, and effectively prevent the bulging caused by the deformation of the aluminum-plastic composite tape, while increasing the integrity of the structure and improving the radial water-blocking capacity, and the aluminum-plastic composite tape of the longitudinally wrapped aluminum-plastic composite tape layer 51 and the extruded aluminum-plastic composite tape layer 53 also has a certain shielding effect, which can effectively improve the anti-interference ability of the cable, and the high-density polyethylene sheath material layer 52 has a low water absorption rate, and can be tightly bonded to the film layer of the longitudinally wrapped aluminum-plastic composite tape layer 51 and the extruded aluminum-plastic composite tape layer 53 under high temperature during extrusion, thereby greatly improving the water-blocking performance of the cable.

[0039] Specifically, the water-blocking filling layer 4 is made of fiber nonwoven fabric and highly absorbent resin material, so that the absorbent resin forms a semi-solidified colloid with strong water-blocking performance after meeting water, which can effectively prevent moisture from penetrating into the cable along the cable axis, thereby improving the waterproof and moisture-proof ability of the cable.

[0040] Specifically, the braided armor layer 6 is made of galvanized steel wire. The steel wire braided armor increases the flexibility and protection capability of the cable while ensuring the original softness of the cable, and can effectively protect the internal structure of the cable from damage when the cable is crushed or impacted.

[0041] Specifically, the reinforcing core 8 is a multi-strand galvanized steel wire rope, which avoids direct force inside the cable when the cable is dragged or pulled, and prevents the cable from being damaged or cracked.

[0042] Specifically, the insulating layer 2 is made of cross-linked polyethylene insulating material, which is convenient for processing, preparation and use.

[0043] Working principle: When in use, the longitudinal and radial water-blocking capabilities of the cable are enhanced by providing a water-blocking filling layer 4 and a waterproof inner sheath 5 structure, so that the normal operation of the cable can be guaranteed in the event of an accident, and the braided armor layer 6 greatly improves the protection capability of the cable, avoiding damage to the cable when subjected to pressure or impact. The reinforcing core 8 on the UV-proof polyvinyl chloride outer sheath 7 ensures that the cable will not be damaged or cracked when dragged or pulled. The conductor 1 is effectively insulated by the outer insulating layer 2 and the insulating shielding layer 3, and effectively shields the interference of the external magnetic field on the conductor 1.

[0044] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cable for airport lighting, comprising a conductor (1), characterized in that: An insulating layer (2) is arranged on the circumferential side of the conductor (1), an insulating shielding layer (3) is arranged on the circumferential side of the insulating shielding layer (3), a water-blocking filling layer (4) is arranged on the circumferential side of the water-blocking filling layer (4), a waterproof inner protective layer (5) is arranged on the circumferential side of the waterproof inner protective layer (5), a braided armor layer (6) is arranged on the circumferential side of the braided armor layer (6), an anti-ultraviolet polyvinyl chloride outer sheath (7) is arranged on the circumferential side of the braided armor layer (6), and reinforcing cores (8) are arranged on the inner sides of both ends of the anti-ultraviolet polyvinyl chloride outer sheath (7).

2. The cable for airport lighting according to claim 1, characterized in that: The reinforcing core (8) comprises an outer gear sleeve (81), a snap sleeve cavity (82) and an intermediate core column (83); the outer gear sleeve (81) is arranged on the circumference of the intermediate core column (83); the snap sleeve cavity (82) is arranged on the circumference of the outer gear sleeve (81); the outer gear sleeve (81) is connected to the UV-proof polyvinyl chloride outer sheath (7) via the snap sleeve cavity (82).

3. The cable for airport lighting according to claim 1, characterized in that: The conductor (1) comprises an inner core (11) and a chloroprene rubber outer sheath (12); the chloroprene rubber outer sheath (12) is provided on the circumference of the inner core (11); and the chloroprene rubber outer sheath (12) is connected to the insulating layer (2).

4. The cable for airport lighting according to claim 1, characterized in that: The waterproof inner protective layer (5) comprises a longitudinally wrapped aluminum-plastic composite tape layer (51), a high-density polyethylene sheath material layer (52) and an extruded aluminum-plastic composite tape layer (53); the upper end of the longitudinally wrapped aluminum-plastic composite tape layer (51) is provided with an extruded aluminum-plastic composite tape layer (53); the upper end of the extruded aluminum-plastic composite tape layer (53) is provided with a high-density polyethylene sheath material layer (52); the longitudinally wrapped aluminum-plastic composite tape layer (51) is connected to the braided armor layer (6); and the high-density polyethylene sheath material layer (52) is connected to the water-blocking filling layer (4).

5. The cable for airport lighting according to claim 1, characterized in that: The water-blocking filling layer (4) is made of fiber non-woven fabric and highly water-absorbent resin material.

6. The cable for airport lighting according to claim 1, characterized in that: The braided armor layer (6) is made of galvanized steel wire.

7. The cable for airport lighting according to claim 1, characterized in that: The reinforcing core (8) is a multi-strand galvanized steel wire rope.

8. The cable for airport lighting according to claim 1, characterized in that: The insulating layer (2) is a cross-linked polyethylene insulating material.

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