Composite overhead insulated cable

Abstract

The utility model discloses a composite overhead insulated cable, which comprises a cable main body, a heat-conducting insulating rubber body is arranged on the outer side of the butt joint end of the cable main body, a connecting lantern ring is arranged on the outer side of the heat-conducting insulating rubber body, a heat-shrinkable tube is arranged on the outer side of the connecting lantern ring, a protective lantern ring is arranged on the outer side of the heat-shrinkable tube, and the protective lantern ring is arranged on the outer side of the protective lantern ring. Adhesive rubber rings are arranged between the two ends of the inner side of the protective sleeve ring and the two ends of the outer side of the heat shrink tube. Positioning clamping sleeves are arranged at the left end and the right end of the outer side of the protective sleeve ring. The cable main body sequentially comprises an outer sheath, an anti-puncture layer, a flame-retardant layer, a tensile layer, a shielding layer, an insulating layer, a stranded wire layer and a carbon fiber composite core body from outside to inside. According to the utility model, the connection and protection strength of the butt joint end of the cable can be improved, the tensile use requirement can be met, the sealing performance of the cable in use is ensured, the operation is simple, and the use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of power transmission, in particular to a composite overhead insulated cable. Background Art

[0002] As the carrier of power transmission, overhead insulated conductors occupy an extremely important position in the transmission and distribution line routes. The widely used overhead transmission and distribution conductors are aluminum stranded wires and steel-core aluminum stranded wires. Overhead cables are overhead conductors equipped with an insulating layer and a protective outer sheath. They are a special cable manufactured using a production process similar to that of cross-linked cables. They are a new transmission method between overhead conductors and underground cables. Overhead cables are all single-core. According to their different structures, they can be divided into hard aluminum wire structures, hard-drawn copper wire structures, aluminum alloy wire structures, steel core or aluminum alloy core support structures, and self-supporting three-core composite structures. They have the main characteristics of high power supply reliability, good power supply safety, convenient installation and maintenance, and reasonable economy.

[0003] At present, the existing composite overhead insulated cables have poor tensile and puncture resistance during use, especially the butt ends of the cables, which are prone to reduced sealing after puncture, affecting their service life. To this end, we propose a composite overhead insulated cable. Utility Model Content

[0004] The utility model aims to provide a composite overhead insulated cable, which has the advantages of good tensile and puncture resistance, and solves the problem that the existing composite overhead insulated cables have poor tensile and puncture resistance during use, especially the butt ends of the cables, which are prone to reduced sealing after puncture, thus affecting their service life.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a composite overhead insulated cable, comprising a cable body, a heat-conducting insulating colloid is arranged on the outside of the butt end of the cable body, a connecting ring is arranged on the outside of the heat-conducting insulating colloid, a heat-shrinkable tube is arranged on the outside of the connecting ring, a protective ring is arranged on the outside of the heat-shrinkable tube, adhesive rubber rings are arranged between the two ends of the inner side of the protective ring and the two ends of the outer side of the heat-shrinkable tube, and positioning sleeves are arranged on the left and right ends of the outer side of the protective ring;

[0006] Also includes:

[0007] The cable body comprises, from outside to inside, an outer sheath, an anti-puncture layer, a flame retardant layer, a tensile layer, a shielding layer, an insulating layer, a stranded wire layer and a carbon fiber composite core.

[0008] Preferably, an anti-skid pad is provided on the inner side of the positioning sleeve, and the anti-skid pad is in contact with the outer surface of the protective collar.

[0009] Preferably, locking bolts are provided at both the front and rear ends of the positioning sleeve, and the outer surface of the locking bolts is provided with a seismic isolation rubber pad, an anti-loosening spring, a gasket, a spring washer and a locking nut in sequence from top to bottom.

[0010] Preferably, the material of the outer sheath is a polyvinyl chloride layer, and the material of the puncture-resistant layer is an ultra-high molecular weight polyethylene fiber layer.

[0011] Preferably, the flame retardant layer is made of a chloroprene flame retardant rubber layer, and the tensile layer is made of a basalt fiber layer.

[0012] Preferably, the shielding layer is made of copper foil, and the insulating layer is made of polyethylene layer.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model can improve the connection and protection strength of the cable butt end, and can meet the use requirements of tensile resistance, while ensuring the sealing of the cable during use, and is simple to operate and easy to use.

[0015] 2. The utility model can improve the tensile and puncture resistance of the cable itself, and enhance its flame retardancy, signal shielding, wear resistance and corrosion resistance, thereby increasing the service life of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the main structure of the cable of the utility model;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the positioning sleeve structure of the utility model.

[0020] In the figure: 1. Cable body; 101. Outer sheath; 102. Anti-puncture layer; 103. Flame retardant layer; 104. Tensile layer; 105. Shielding layer; 106. Insulation layer; 107. Carbon fiber composite core; 108. Stranded wire layer; 2. Anti-slip pad; 3. Positioning sleeve; 4. Protective collar; 5. Locking bolt; 6. Thermal conductive insulating colloid; 7. Adhesive rubber ring; 8. Gasket; 9. Spring washer; 10. Locking nut; 11. Seismic isolation rubber pad; 12. Anti-loosening spring; 13. Connecting collar; 14. Heat shrink tube. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] The cable body 1, outer sheath 101, puncture-resistant layer 102, flame-retardant layer 103, tensile layer 104, shielding layer 105, insulating layer 106, carbon fiber composite core 107, stranded wire layer 108, anti-slip pad 2, positioning sleeve 3, protective ring 4, locking bolt 5, thermally conductive insulating colloid 6, adhesive rubber ring 7, gasket 8, spring washer 9, locking nut 10, seismic isolation rubber pad 11, anti-loosening spring 12, connecting ring 13 and heat shrink tube 14 components of the present application are all universal standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or through conventional experimental methods.

[0025] Embodiment 1

[0026] See also Figure 1 , Figure 3 and Figure 4As shown, the utility model provides a technical solution: a composite overhead insulated cable, comprising a cable body 1, a heat-conducting insulating colloid 6 is arranged on the outside of the butt end of the cable body 1, a connecting ring 13 is arranged on the outside of the heat-conducting insulating colloid 6, a heat-shrinkable tube 14 is arranged on the outside of the connecting ring 13, a protective ring 4 is arranged on the outside of the heat-shrinkable tube 14, adhesive rubber rings 7 are arranged between the two ends of the inner side of the protective ring 4 and the two ends of the outer side of the heat-shrinkable tube 14, and positioning sleeves 3 are arranged on the left and right ends of the outer side of the protective ring 4;

[0027] Wherein, an anti-skid pad 2 is arranged on the inner side of the positioning sleeve 3, and the anti-skid pad 2 is in contact with the outer surface of the protective sleeve ring 4;

[0028] Among them, locking bolts 5 are provided at both the front and rear ends of the positioning sleeve 3, and the outer surface of the locking bolt 5 is provided with a seismic isolation rubber pad 11, an anti-loosening spring 12, a gasket 8, a spring washer 9 and a locking nut 10 in sequence from top to bottom.

[0029] The present technical solution can be coated on the outside of the stranded wire layer 108 at the cable butt end by setting the heat-conducting insulating colloid 6, so as to provide heat-conducting insulating protection for the stranded wire layer 108. Then, a connecting ring 13 is sleeved on the outside of the heat-conducting insulating colloid 6 at the cable butt end. Then, a heat shrink tube 14 is sleeved on the outside of the connecting ring 13 and is heated and shrunk. After the adhesive rubber rings 7 are attached to the two ends of the shrinking heat shrink tube 14, a protective ring 4 is sleeved on the outside of the heat shrink tube 14. Then, the positioning sleeve 3 is sleeved on both sides of the protective ring 4. The locking bolt 5 is inserted into the front and rear ends of the positioning sleeve 3 with the help of the anti-slip pad 2. Then, the anti-loosening spring 12, the gasket 8, the spring washer 9 and the locking nut 10 are inserted into the lower end of the locking bolt 5 in sequence. After tightening the locking nut 10, and with the cooperation of the seismic isolation rubber pad 11, the positioning sleeve 3 can be locked at both ends of the protective collar 4, and the loosening of the locking nut 10 due to vibration can be avoided, thereby improving the connection strength of the cable butt end and meeting the use requirements of tensile and puncture resistance.

[0030] Embodiment 2

[0031] On the basis of embodiment 1, the present invention is as follows Figure 1-Figure 4 As shown, the cable body 1 includes, from outside to inside, an outer sheath 101, an anti-puncture layer 102, a flame retardant layer 103, a tensile layer 104, a shielding layer 105, an insulating layer 106, a stranded wire layer 108 and a carbon fiber composite core 107;

[0032] The outer sheath 101 is made of a polyvinyl chloride layer, and the anti-puncture layer 102 is made of an ultra-high molecular weight polyethylene fiber layer;

[0033] The flame retardant layer 103 is made of a chloroprene flame retardant rubber layer, and the tensile layer 104 is made of a basalt fiber layer;

[0034] The shielding layer 105 is made of copper foil, and the insulating layer 106 is made of polyethylene layer.

[0035] The technical solution improves the wear resistance and corrosion resistance of the cable surface by providing the outer sheath 101, while the puncture resistance and tensile resistance of the cable are improved by providing the anti-puncture layer 102, the tensile layer 104 and the carbon fiber composite core 107. The flame retardant layer 103, the shielding layer 105 and the insulating layer 106 improve the flame retardant, signal shielding and insulation protection performances of the cable, thereby expanding the application scope of the cable and improving the service life of the cable.

[0036] Working principle: Through the setting of the heat-conductive insulating colloid 6, the stranded wire layer 108 at the butt end of the cable can be coated externally, so as to provide heat-conductive insulating protection for the stranded wire layer 108. Then, a connecting ring 13 is sleeved on the outside of the heat-conductive insulating colloid 6 at the butt end of the cable. Then, a heat shrink tube 14 is sleeved on the outside of the connecting ring 13 and is heated and shrunk. After the adhesive rubber rings 7 are pasted on the two ends of the shrinkage of the heat shrink tube 14, a protective ring 4 is sleeved on the outside of the heat shrink tube 14. Then, the positioning sleeve 3 is sleeved on the two ends of the protective ring 4, and with the assistance of the anti-slip pad 2, the locking bolt 5 is inserted into the front and rear ends of the positioning sleeve 3. Then, the anti-loosening spring 12 and the gasket 8 as well as the spring washer 9 and the locking nut 10 are sequentially sleeved on the lower end of the locking bolt 5, and the locking screw is tightened. After the mother 10 is installed, and with the cooperation of the seismic isolation rubber pad 11, the positioning sleeve 3 can be locked at both ends of the protective ring 4, and the loosening of the locking nut 10 due to vibration can be avoided, thereby improving the connection strength of the cable butt end and meeting the use requirements of tensile and puncture resistance. Through the arrangement of the outer sheath 101, the wear resistance and corrosion resistance of the surface of the cable are improved, and the arrangement of the puncture-resistant layer 102, the tensile layer 104 and the carbon fiber composite core 107 improves the puncture resistance and tensile resistance of the cable. Through the arrangement of the flame-retardant layer 103, the shielding layer 105 and the insulating layer 106, the flame-retardant, signal shielding and insulation protection performance of the cable are improved, thereby expanding the scope of application of the cable and improving the service life of the cable.

[0037] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and ratio of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present utility model. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to a specific embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0038] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A composite overhead insulated cable, comprising a cable body (1), a heat-conducting insulating colloid (6) is arranged on the outer side of the butt end of the cable body (1), a connecting ring (13) is arranged on the outer side of the heat-conducting insulating colloid (6), a heat-shrinkable tube (14) is arranged on the outer side of the connecting ring (13), a protective ring (4) is arranged on the outer side of the heat-shrinkable tube (14), adhesive rubber rings (7) are arranged between the two ends of the inner side of the protective ring (4) and the two ends of the outer side of the heat-shrinkable tube (14), and positioning sleeves (3) are arranged on the left and right ends of the outer side of the protective ring (4); It is characterized in that Also includes: The cable body (1) comprises, from outside to inside, an outer sheath (101), a puncture-resistant layer (102), a flame-retardant layer (103), a tensile-resistant layer (104), a shielding layer (105), an insulating layer (106), a stranded wire layer (108) and a carbon fiber composite core (107).

2. A composite overhead insulated cable according to claim 1, characterized in that: An anti-skid pad (2) is provided on the inner side of the positioning sleeve (3), and the anti-skid pad (2) is in contact with the outer surface of the protective collar (4).

3. A composite overhead insulated cable according to claim 1, characterized in that: The front and rear ends of the positioning sleeve (3) are both provided with locking bolts (5), and the outer surface of the locking bolt (5) is provided with a shock-isolating rubber pad (11), an anti-loosening spring (12), a gasket (8), a spring washer (9) and a locking nut (10) in sequence from top to bottom.

4. A composite overhead insulated cable according to claim 1, characterized in that: The material of the outer sheath (101) is a polyvinyl chloride layer, and the material of the anti-puncture layer (102) is an ultra-high molecular weight polyethylene fiber layer.

5. A composite overhead insulated cable according to claim 1, characterized in that: The material of the flame retardant layer (103) is a chloroprene flame retardant rubber layer, and the material of the tensile layer (104) is a basalt fiber layer.

6. A composite overhead insulated cable according to claim 1, characterized in that: The shielding layer (105) is made of copper foil, and the insulating layer (106) is made of polyethylene layer.

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