Aluminum-plastic longitudinally-wrapped waterproof cable

Abstract

The utility model discloses an aluminum-plastic longitudinally wrapped waterproof cable, which relates to the technical field of waterproof cables and comprises three cells, a filling layer wrapped outside the three cells, an expansion layer wrapped outside the filling layer, an aluminum-plastic composite belt wrapped outside the expansion layer, an armor layer wrapped outside the aluminum-plastic composite belt and a polyolefin sheath layer wrapped outside the armor layer. A coating layer is sprayed outside the sheath layer, and a plugging mechanism is movably arranged outside the sheath layer; the aluminum-plastic composite belt plays a role in water insulation and barrier and prevents external moisture from permeating; the expansion layer can absorb water and expand when water enters the aluminum-plastic composite belt, gaps are filled, a secondary waterproof defense line is formed, the waterproof effect is further enhanced through the nanometer waterproof coating sprayed on the sheath layer, the coiled material is endowed with the self-cleaning function, the surface of the sheath layer is not prone to being contaminated by dust and dirt, and the service life of the coiled material is prolonged. And through cooperation of the arc plate, the winding shaft and the tightening belt, the damaged sheath layer can be protected, and the waterproof performance of the cable is further enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to waterproof cable technical field, concretely relates to a waterproof cable of aluminium plastic longitudinal package. BACKGROUND

[0002] With the acceleration of modernization, cables are widely used in power transmission, communication, industrial production and many other key fields.

[0003] However, the traditional cable has a significant shortcoming in waterproof performance. In a humid underground environment, an outdoor overhead line frequently subjected to rainwater scouring, or an industrial facility close to a water source, moisture can easily enter the inside of the cable, causing a series of problems such as moisture aging of the insulation layer, corrosion and rust of the metal conductor, etc. This not only greatly shortens the service life of the cable, but also seriously threatens the stability of power and signal transmission, leading to power interruption and frequent communication failures, causing great losses to social production and life. Therefore, a new type of cable with reliable waterproof performance and stable structure is urgently needed. SUMMARY

[0004] The utility model aims at providing a waterproof cable of aluminium plastic longitudinal package to solve the above-mentioned shortcomings in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a waterproof cable of aluminium plastic longitudinal package, comprising three electric cores, the three electric cores are wrapped with a filling layer, the filling layer is wrapped with an expansion layer, the expansion layer is a water-absorbing expansion rubber belt, the expansion layer is wrapped with an aluminium plastic composite belt, the aluminium plastic composite belt is composed of an aluminium base belt and a film attached to the surface thereof, the aluminium plastic composite belt is wrapped with an armour layer, the armour layer is wrapped with a polyolefin sheath layer, the sheath layer is sprayed with a coating layer, and the sheath layer is movably provided with a plugging mechanism.

[0006] Preferably, the coating layer is a nano waterproof coating with a thickness of 0.1-0.2mm.

[0007] Preferably, each electric core comprises a conductor layer, each conductor layer is twisted by a plurality of high-purity oxygen-free copper wires, each conductor layer is wrapped with a conductor shielding layer, each conductor shielding layer is wrapped with an insulation layer, each insulation layer is wrapped with an insulation shielding layer, and each insulation shielding layer is wrapped with a metal shielding layer.

[0008] Preferably, the sheath layer is provided with an arc plate, one end of the arc plate is fixedly provided with a taut belt, the taut belt is made of rubber, a winding shaft is rotatably arranged on the arc plate, and one end of the taut belt away from the arc plate is fixedly arranged on the winding shaft.

[0009] As preferred, a through groove is formed on the arc plate, a rotating shaft is rotatably arranged in the through groove, a protruding block and a protruding plate are fixedly arranged at two ends of the arc plate respectively, the winding shaft is rotatably arranged between the protruding block and the protruding plate, a first rotating handle is rotatably arranged on the protruding plate, and the first rotating handle is fixedly connected with the winding shaft.

[0010] As preferred, a locking column is threadedly connected with the protruding block, a second rotating handle is fixedly arranged on the locking column, a recess is formed on the arc plate, and three fastening bolts are threadedly connected with the recess.

[0011] In the above technical solution, the aluminum-plastic longitudinal wrapping waterproof cable has the following beneficial effects: the aluminum-plastic composite tape plays a water barrier role to prevent external moisture from penetrating, and the plastic film provides physical protection for the aluminum foil to prevent it from being scratched and damaged by external force; the water-absorbing and expanding rubber belt of the expansion layer can rapidly absorb moisture and expand when the moisture enters the aluminum-plastic composite tape, fill the gap, and form a secondary waterproof line; the nanometer waterproof coating sprayed on the sheath layer further enhances the waterproof effect and also endows the coiled material with a self-cleaning function, so that the surface of the sheath layer is not easy to be contaminated by dust and dirt; the cooperation of the arc plate, the winding shaft and the tightening belt can protect the damaged sheath layer and further enhance the waterproof performance of the cable. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art based on these drawings.

[0013] Figure 1 The overall structural schematic diagram provided by the embodiments of the present application is shown in the figure;

[0014] Figure 2 The structural schematic diagram of the battery cell provided by the embodiments of the present application is shown in the figure;

[0015] Figure 3 The structural schematic diagram of the tightening belt provided by the embodiments of the present application is shown in the figure;

[0016] Figure 4 The structural schematic diagram of the arc plate provided by the embodiments of the present application is shown in the figure.

[0017] Explanation of reference signs:

[0018] 1, coating layer; 2, sheath layer; 3, armored layer; 4, aluminum plastic composite tape; 5, expansion layer; 6, filling layer; 10, conductor layer; 11, conductor shielding layer; 12, insulation layer; 13, insulation shielding layer; 14, metal shielding layer; 21, arc plate; 22, tightening belt; 23, protruding block; 24, protruding plate; 25, winding shaft; 26, first rotating handle; 27, locking column; 28, second rotating handle; 29, through slot; 30, rotating shaft; 31, groove; 32, fastening bolt. DETAILED DESCRIPTION

[0019] In order for those skilled in the art to better understand the technical scheme of the utility model, the utility model will be further described in detail below with reference to the drawings.

[0020] Please refer to Figures 1-4 A kind of waterproof cable of aluminum plastic longitudinal package, the technical scheme presented in the utility model, including three electric cores, three electric cores are wrapped with filling layer 6, filling layer 6 is wrapped with expansion layer 5, expansion layer 5 is water-absorbing expansion rubber tape, expansion layer 5 is wrapped with aluminum plastic composite tape 4, aluminum plastic composite tape 4 is composed of aluminum base tape and the film attached to its surface, aluminum plastic composite tape 4 is wrapped with armored layer 3, armored layer 3 is wrapped with polyolefin sheath layer 2, sheath layer 2 is sprayed with coating layer 1 outside, and sheath layer 2 is movably provided with sealing mechanism outside;Aluminum plastic composite tape 4 is formed by longitudinal packaging of aluminum foil base tape and plastic film by composite process, aluminum foil plays excellent water barrier role, prevents external moisture penetration, and plastic film provides physical protection for aluminum foil to avoid damage by external force, the electric core is three groups, the position of three groups of electric cores is fixed by filling layer 6 and the buffering property is guaranteed, when trace moisture breaks through aluminum plastic composite tape 4 of aluminum plastic longitudinal package, water-absorbing expansion rubber tape can quickly absorb moisture and expand, fill the gap, form secondary waterproof line, armored layer 3 provides sufficient bending resistance for cable, outer, outer polyolefin sheath layer 2 is tough and wear-resistant, and gives the overall mechanical protection ability of cable, resists daily wear and tear, extrusion and other external force impact, when sheath layer 2 is slightly punctured or damaged outside during transportation or installation, the position punctured or damaged is sealed by sealing mechanism, to ensure the waterproofness of cable.

[0021] Specifically, the coating layer 1 is a 0.1-0.2mm thick nano waterproof coating; the nano waterproof coating is evenly coated on the sheath layer 2 by spraying, and the coating thickness is strictly controlled during the coating process. The nano coating uses nano technology to further enhance the waterproof effect and also gives the coil a self-cleaning function, so that the surface of the sheath layer 2 is not easy to get dirty, prolonging the service life of the cable.

[0022] Specifically, each of the battery cells comprises a conductor layer 10, each of the conductor layers 10 is twisted by a plurality of high-purity oxygen-free copper wires, each of the conductor layers 10 is wrapped by a conductor shielding layer 11, each of the conductor shielding layers 11 is wrapped by an insulation layer 12, each of the insulation layers 12 is wrapped by an insulation shielding layer 13, and each of the insulation shielding layers 13 is wrapped by a metal shielding layer 14; the conductor layer 10 is twisted by a plurality of high-purity oxygen-free copper wires, which has good electrical conductivity and certain flexibility, the conductor shielding layer 11, the insulation shielding layer 13, and the metal shielding layer 14 have the functions of anti-interference, anti-radiation, static electricity discharge, moisture and corrosion resistance, and mechanical damage resistance, and the insulation layer 12 has the functions of preventing electric leakage, maintaining signal stability, isolating external corrosion, buffering external force impact, and stabilizing cable performance.

[0023] Specifically, the sheath layer 2 is provided with an arc plate 21, one end of the arc plate 21 is fixedly provided with a tightening belt 22, the tightening belt 22 is made of rubber, the arc plate 21 is rotatably provided with a winding shaft 25, and the other end of the tightening belt 22 is fixedly arranged on the winding shaft 25; the arc of the arc plate 21 is consistent with the arc of the outer circumferential surface of the sheath layer 2, the tightening belt 22 is made of rubber, as shown in FIG. 2, one end of the tightening belt 22 is fixed to the right side of the arc plate 21, and the other end of the tightening belt 22 passes through the left side of the arc plate 21 and is fixed to the winding shaft 25; in the process of transportation or installation, if the sheath layer 2 is damaged or pierced, the arc plate 21 is moved to make the tightening belt 22 be at the damaged position, and the tightening belt 22 is wound by rotating the winding shaft 25, so that the tightening belt 22 tightly clamps the sheath layer 2, and then the damaged sheath layer 2 is tightly blocked, thereby increasing the waterproof performance of the cable. Figure 3

[0024] Specifically, the arc plate 21 is provided with a through slot 29, a rotating shaft 30 is rotatably arranged in the through slot 29, the arc plate 21 is fixedly provided with a protruding block 23 and a protruding plate 24 at two ends, respectively, the winding shaft 25 is rotatably arranged between the protruding block 23 and the protruding plate 24, the protruding plate 24 is rotatably provided with a first rotating handle 26, and the first rotating handle 26 is fixedly connected with the winding shaft 25; one end of the tightening belt 22 passes through the through slot 29 and is fixedly connected with the winding shaft 25 by passing around the rotating shaft 30, when the winding shaft 25 winds the tightening belt 22, the rotating shaft 30 reduces the friction between the tightening belt 22 and the arc plate 21, the protruding block 23 and the protruding plate 24 support the winding shaft 25, and the rotating handle can conveniently rotate the winding shaft 25, so as to wind the tightening belt 22, and then the tightening belt 22 tightly clamps the damaged sheath layer 2, thereby ensuring the waterproof performance.

[0025] ​Specific, the convex block 23 is screwed with locking column 27, the locking column 27 is fixedly provided with the second handle 28, the arc plate 21 is provided with recess 31, and the recess 31 is screwed with three fastening bolts 32; the winding shaft 25 penetrates the convex block 23 and is rotatably connected with the convex block 23, the initial state is that the one end of the taut band 22 is fixedly connected with the winding shaft 25, when using, the one end of the taut band 22 is taken out from the through slot 29, and the cable is placed on the taut band 22, the other end of the taut band 22 is inserted into the recess 31, the three fastening bolts 32 are rotated to make the one end of the taut band 22 be fixed in the recess 31, at this time, the taut band 22 is sleeved outside the sheath layer 2, the taut band 22 and the arc plate 21 are moved to the damaged part of the sheath layer 2, the winding shaft 25 is rotated, the winding shaft 25 winds the taut band 22, so that the taut band 22 made of rubber material tightly grips the damaged part of the sheath layer 2, effectively prevents the damaged part from entering water, when the taut band 22 is taut enough, the locking column 27 is rotated by the second handle 28 to make the locking column 27 move downward, the bottom of the locking column 27 is relatively sharp, the sharp part of the bottom of the locking column 27 is pierced into the winding shaft 25 along with the downward movement of the locking column 27, so as to fix the winding shaft 25, and further make the taut band 22 keep taut state, which can protect the damaged part of the sheath layer 2 for a long time.

[0026] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A water-proof cable of longitudinal aluminium-plastic wrapping, comprising three electric cores, characterized in that, Three of the battery cells are wrapped with a filling layer (6), the filling layer (6) is wrapped with an expansion layer (5), the expansion layer (5) is a water-absorbing expansion rubber belt, the expansion layer (5) is wrapped with an aluminum plastic composite belt (4), the aluminum plastic composite belt (4) is composed of an aluminum base belt and a film attached to the surface thereof, the aluminum plastic composite belt (4) is wrapped with an armor layer (3), the armor layer (3) is wrapped with a polyolefin sheath layer (2), the sheath layer (2) is sprayed with a paint layer (1) on the outside, and a sealing mechanism is movably arranged on the outside of the sheath layer (2).

2. A water resistant cable of the type defined in claim 1, characterised in that The paint layer (1) is a nano waterproof paint with a thickness of 0.1-0.2mm.

3. A water blocking cable with longitudinal plastic overcoat of aluminum as claimed in claim 2, wherein, Each of the battery cells comprises a conductor layer (10), each of the conductor layers (10) is twisted by a plurality of high-purity oxygen-free copper wires, each of the conductor layers (10) is wrapped with a conductor shielding layer (11), each of the conductor shielding layers (11) is wrapped with an insulation layer (12), each of the insulation layers (12) is wrapped with an insulation shielding layer (13), and each of the insulation shielding layers (13) is wrapped with a metal shielding layer (14).

4. A water blocking cable with longitudinal plastic overcoat of aluminum as claimed in claim 3, wherein, An arc plate (21) is arranged on the outside of the sheath layer (2), one end of the arc plate (21) is fixedly provided with a taut belt (22), the taut belt (22) is made of rubber, and a winding shaft (25) is rotatably arranged on the arc plate (21).

5. A water blocking cable with longitudinal plastic overcoat of aluminum as claimed in claim 4, wherein, A through groove (29) is formed in the arc plate (21), a rotating shaft (30) is rotatably arranged in the through groove (29), and a protruding block (23) and a protruding plate (24) are fixedly arranged at two ends of the arc plate (21), respectively.

6. A water blocking cable with longitudinal plastic overcoat of aluminum as claimed in claim 5, wherein, The winding shaft (25) is rotatably arranged between the protruding block (23) and the protruding plate (24), a first handle (26) is rotatably arranged on the protruding plate (24), and the first handle (26) is fixedly connected with the winding shaft (25). A locking column (27) is threadedly connected with the protruding block (23), a second handle (28) is fixedly arranged on the locking column (27), a recess (31) is formed in the arc plate (21), and three fastening bolts (32) are threadedly connected with the recess (31).

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