Water-blocking overhead insulated cable

Abstract

The utility model discloses a water-blocking overhead insulated cable, which comprises an outer sheath, an inner sheath is arranged on the inner side of the outer sheath, a plurality of spiral reinforcing rods are movably mounted between the outer sheath and the inner sheath, and the spiral reinforcing rods are spirally arranged at positions between the spiral reinforcing rods and the inner sheath. Four assembling sleeves are arranged in the inner sheath, U-shaped connecting plates are fixedly installed on the surfaces of one sides of the assembling sleeves, and inserting plates are fixedly installed on the surfaces of the other sides of the assembling sleeves. The utility model has the advantages that the steel core and the insulating sheath are protected through the U-shaped connecting plate and the plug board, the deformation of the assembling sleeve caused by extrusion in the inner sheath is avoided, the steel core and the aluminum core are further prevented from being deformed by compression, the protection effect is achieved, and meanwhile, due to the matching of the T-shaped clamping pin and the clamping ball, the service life of the steel core and the aluminum core is prolonged. And the insulating sheath can form support with the assembling sleeve through the T-shaped clamping pin and the clamping ball, so that the supporting force of the assembling sleeve and the insulating sheath is further improved, and the deformation is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a cable especially relates to a water -resistant overhead insulated cable. BACKGROUND

[0002] Overhead cable is the overhead conductor equipped with insulation layer and protective sheath, is a kind of special cable, which is manufactured by similar cross-linking cable production process, and is a new power transmission mode between overhead conductor and underground cable, with the advantages of high power supply reliability, good power supply safety, convenient erection and maintenance and reasonable economy.

[0003] However, in the prior art, the internal structural strength of the overhead insulated cable is low during use, and the aluminum core and the steel core are prone to deformation, resulting in damage to the cable. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problem to provide a kind of water -resistant overhead insulated cable, since the internal structural strength of the overhead insulated cable is low during use, and the aluminum core and the steel core are prone to deformation, resulting in damage to the cable.

[0005] To solve the above technical problems, the technical scheme of the utility model is as follows:

[0006] A kind of water -resistant overhead insulated cable, including outer sheath, the inner side of the outer sheath is equipped with inner sheath, a plurality of spiral reinforcing rods are movably installed between the outer sheath and the inner sheath, the spiral reinforcing rods are all arranged in spiral between the spiral reinforcing rod and the inner sheath, the inside of the inner sheath is equipped with four assembly sleeves, the side surface of the assembly sleeve is all fixedly installed with U-shaped connecting plate, the other side surface of the assembly sleeve is all fixedly installed with plug-in board, the plug-in board is all movably clamped into the inside of U-shaped connecting plate.

[0007] Preferably, the inner side of the four assembly sleeves is equipped with insulating sheath, the outer surface of the insulating sheath is fixedly installed with four T-shaped clamping pins, the outer side of the T-shaped clamping pin is all fixedly installed with clamping ball, the clamping ball is all attached to the surface of U-shaped connecting plate and plug-in board.

[0008] Preferably, the inside of the assembly sleeve is all equipped with steel core, the inside of the insulating sheath is equipped with a plurality of aluminum cores, the aluminum core is all movably installed with elastic strip between each aluminum core.

[0009] Preferably, the inner space of the inner sheath is all filled with filling material.

[0010] Preferably, the outer surface of the outer sheath is equipped with rubber protective layer, the inner side of the rubber protective layer is equipped with armor layer, the inner side of the armor layer is equipped with water -resistant layer, the inner side of the water -resistant layer is equipped with tensile layer.

[0011] Preferably, the rubber protective layer is made of nitrile rubber, the armor layer is made of aluminum alloy belt, the water-blocking layer is made of glass fiber, and the tensile layer is made of aramid yarn.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] 1、 through the cooperation of U type connecting plate and plug -in board, the cable can be protected by U type connecting plate and plug -in board to steel core and insulating sheath when using, avoid assembling set in the inside of the inner sheath and be extruded and be deformed, further avoid steel core and aluminum core and be deformed under pressure, play the role of protection, simultaneously through the cooperation of T type joint pin and joint ball, the insulating sheath can form the support between the assembling set and the insulating sheath through T type joint pin and joint ball, further improve the support of assembling set and insulating sheath, avoid its deformation;

[0014] 2、 through the cooperation of rubber protective layer, armor layer, water-blocking layer and tensile layer, the cable can ensure the wear resistance of cable outer skin position through rubber protective layer when using, and ensure the strength of outer sheath through armor layer, avoid the outer sheath being broken and damaged, and prevent water from entering the inner part of the outer sheath through the water-blocking layer, and improve the toughness of the outer sheath through the tensile layer, avoid the outer sheath being pulled and broken;

[0015] 3、 through the setting of spiral reinforcing rod, the inner sheath can be protected by the spiral reinforcing rod when the cable is used, and the impact force will be absorbed by the spiral reinforcing rod when the outer sheath is impacted, thereby improving the overall strength of the cable. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the overall structure schematic view of the utility model;

[0017] Figure 2 It is the front view of the utility model;

[0018] Figure 3 It is the cross section front view of the utility model;

[0019] Figure 4 It is the layered structure schematic view of the outer sheath of the utility model.

[0020] In the drawing: 1, outer sheath;2, spiral reinforcing rod;3, inner sheath;4, assembling set;5, steel core;6, insulating sheath;7, aluminum core;8, elastic strip;9, U type connecting plate;10, plug -in board;11, T type joint pin;12, joint ball;13, filler;14, rubber protective layer;15, armor layer;16, water-blocking layer;17, tensile layer. DETAILED DESCRIPTION

[0021] The specific embodiments of the utility model will be further described below with reference to the drawings. It should be noted that the description of these embodiments is used to help understand the utility model, but does not constitute a limitation on the utility model. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0022] As shown in Figure 1 A water-blocking overhead insulated cable, comprising an outer sheath 1, an inner sheath 3 is arranged on the inner side of the outer sheath 1, a plurality of spiral reinforcing rods 2 are movably arranged between the outer sheath 1 and the inner sheath 3, the spiral reinforcing rods 2 are arranged in a spiral shape between the spiral reinforcing rods 2 and the inner sheath 3, four assembly sleeves 4 are arranged in the inner part of the inner sheath 3, a U-shaped connecting plate 9 is fixedly arranged on one side surface of each assembly sleeve 4, and a plug-in plate 10 is fixedly arranged on the other side surface of each assembly sleeve 4, and the plug-in plate 10 is movably clamped into the inner part of the U-shaped connecting plate 9.

[0023] An insulating sheath 6 is arranged on the inner side of the four assembly sleeves 4, four T-shaped clamping pins 11 are fixedly arranged on the outer surface of the insulating sheath 6, clamping balls 12 are fixedly arranged on the outer two ends of the T-shaped clamping pins 11, and the clamping balls 12 are attached to the surfaces of the U-shaped connecting plate 9 and the plug-in plate 10.

[0024] In this embodiment, through the cooperation of the U-shaped connecting plate 9 and the plug-in plate 10, the steel core 5 and the insulating sheath 6 can be protected by the U-shaped connecting plate 9 and the plug-in plate 10 during use, so that the assembly sleeve 4 is prevented from being deformed due to extrusion in the inner part of the inner sheath 3, and the steel core 5 and the aluminum core 7 are prevented from being deformed under pressure, thereby playing a protective role. At the same time, through the cooperation of the T-shaped clamping pin 11 and the clamping ball 12, the insulating sheath 6 can form support between the T-shaped clamping pin 11 and the clamping ball 12 and the assembly sleeve 4, further improving the support force of the assembly sleeve 4 and the insulating sheath 6, and preventing deformation.

[0025] And through the arrangement of the spiral reinforcing rod 2, the inner sheath 3 can be protected by the spiral reinforcing rod 2 during use, and when the outer sheath 1 is impacted, the impact force will be absorbed by the spiral reinforcing rod 2, thereby improving the overall strength of the cable.

[0026] As a preferred technical solution of this embodiment, as shown in Figure 2 and Figure 3 The inner part of the assembly sleeve 4 is provided with a steel core 5, and the inner part of the insulating sheath 6 is provided with a plurality of aluminum cores 7, and an elastic strip 8 is movably arranged between each aluminum core 7.

[0027] The inner part of the inner sheath 3 is filled with a filler 13.

[0028] As a preferred technical solution of this embodiment, as shown in Figure 4As shown, the outer surface of the outer sheath 1 is provided with a rubber protective layer 14, the inner side of the rubber protective layer 14 is provided with an armored layer 15, the inner side of the armored layer 15 is provided with a water-blocking layer 16, and the inner side of the water-blocking layer 16 is provided with a tensile layer 17.

[0029] The rubber protective layer 14 is made of nitrile rubber, the armored layer 15 is made of aluminum alloy belt, the water-blocking layer 16 is made of glass fiber, and the tensile layer 17 is made of aramid yarn.

[0030] In this embodiment, through the cooperation of the rubber protective layer 14, the armored layer 15, the water-blocking layer 16 and the tensile layer 17, the cable can ensure the wear resistance of the cable sheath position through the rubber protective layer 14 during use, ensure the strength of the outer sheath 1 through the armored layer 15, prevent water from entering the inside of the outer sheath 1 through the water-blocking layer 16, and improve the toughness of the outer sheath 1 through the tensile layer 17, thereby avoiding the outer sheath 1 from being torn off by being pulled.

[0031] Working principle: the steel core 5 and the insulating sheath 6 can be protected by the U-shaped connecting plate 9 and the plug-in plate 10, so as to avoid the deformation of the assembly sleeve 4 under the pressure in the inside of the inner sheath 3, thereby avoiding the deformation of the steel core 5 and the aluminum core 7 under the pressure, and playing a protection role

[0032] The insulating sheath 6 is supported by the T-shaped clamping pin 11 and the clamping ball 12, so that the insulating sheath 6 can form a support between the T-shaped clamping pin 11 and the clamping ball 12 and the assembly sleeve 4, thereby further improving the support force of the assembly sleeve 4 and the insulating sheath 6 and avoiding the deformation thereof

[0033] Through the cooperation of the rubber protective layer 14, the armored layer 15, the water-blocking layer 16 and the tensile layer 17, the cable can ensure the wear resistance of the cable sheath position through the rubber protective layer 14 during use, ensure the strength of the outer sheath 1 through the armored layer 15, prevent water from entering the inside of the outer sheath 1 through the water-blocking layer 16, and improve the toughness of the outer sheath 1 through the tensile layer 17, thereby avoiding the outer sheath 1 from being torn off by being pulled.

[0034] The embodiments of the utility model are described in detail in combination with the drawings, but the utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the utility model, and still fall within the protection scope of the utility model.

Claims

1. A water-blocking aerial cable comprising an outer sheath (1), characterized in that: The inner side of the outer sheath (1) is provided with an inner sheath (3), a plurality of spiral reinforcing rods (2) are movably installed between the outer sheath (1) and the inner sheath (3), the spiral reinforcing rods (2) are arranged in a spiral shape between the spiral reinforcing rods (2) and the inner sheath (3), the inner side of the inner sheath (3) is provided with four assembly sleeves (4), one side surface of each assembly sleeve (4) is fixedly installed with a U-shaped connecting plate (9), the other side surface of each assembly sleeve (4) is fixedly installed with a plug-in plate (10), and each plug-in plate (10) is movably clamped into the inner side of the U-shaped connecting plate (9).

2. A water-blocking aerial insulated cable according to claim 1, characterized in that: The inner side of each of the four assembly sleeves (4) is provided with an insulating sheath (6), the outer surface of the insulating sheath (6) is fixedly installed with four T-shaped clamping pins (11), the outer sides of both ends of each T-shaped clamping pin (11) are fixedly installed with a clamping ball (12), and the clamping ball (12) is attached to the surface of the U-shaped connecting plate (9) and the plug-in plate (10).

3. A water-blocking aerial insulated cable according to claim 2, characterized in that: The inner side of each of the assembly sleeves (4) is provided with a steel core (5), the inner side of the insulating sheath (6) is provided with a plurality of aluminum cores (7), and the inner side of each of the aluminum cores (7) is movably installed with an elastic strip (8).

4. A water-blocking aerial insulated cable according to claim 1, characterized in that: The inner side of the inner sheath (3) is filled with a filler (13).

5. A water-blocking aerial insulated cable according to claim 1, characterized in that: The outer surface of the outer sheath (1) is provided with a rubber protective layer (14), the inner side of the rubber protective layer (14) is provided with an armor layer (15), the inner side of the armor layer (15) is provided with a water-blocking layer (16), and the inner side of the water-blocking layer (16) is provided with a tensile layer (17).

6. A water-blocking aerial insulated cable according to claim 5, characterized in that: The rubber protective layer (14) is made of nitrile rubber, the armor layer (15) is made of aluminum alloy strip, the water-blocking layer (16) is made of glass fiber, and the tensile layer (17) is made of aramid yarn.

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