CN218849138U

CN218849138U - Moisture-proof cable

Info

Publication number: CN218849138U
Application number: CN202223128959.2U
Authority: CN
Inventors: 陈德林; 陈致林; 陈培新; 林妙芝
Original assignee: Guangdong Nainola Technology Co ltd
Current assignee: Guangdong Nainola Technology Co ltd
Priority date: 2022-11-24
Filing date: 2022-11-24
Publication date: 2023-04-11
Anticipated expiration: 2032-11-24

Abstract

The utility model discloses a moisture-proof cable, including the cable core, the cable core is equipped with five, the cable core includes conductor, shielding layer, interior water blocking layer and internal insulation layer, the inside of cable core all is equipped with the internal insulation layer, the inside of the same centre of a circle of internal insulation layer all is equipped with the interior water blocking layer, the inside of the same centre of a circle of interior water blocking layer all is equipped with the shielding layer, the inside of the same centre of a circle of shielding layer all is equipped with the conductor, the surface of cable core is equipped with the spacing ring, it has water blocking material to fill between spacing ring and the cable core, the surface of spacing ring is equipped with the insulating layer, the inner wall of insulating layer is connected with the fixed surface of spacing ring, the lateral wall that cable core one side was kept away from to the spacing ring evenly is equipped with four sets of spacing grooves along the axis outside. The utility model discloses an outer jacket carries out water protection to the cable, avoids inside the water infiltration cable, adopts double-deck polyvinyl chloride material through the water blocking layer, can carry out the waterproof effect of secondary, has improved the dampproofing effect that blocks water.

Description

Moisture-proof cable

Technical Field

The utility model relates to the technical field of cables, specifically a moisture-proof cable.

Background

The cable is similar to a rope in appearance and is generally formed by twisting a plurality of groups of conducting wires, wherein the conducting wires of each group are mutually insulated and are usually twisted around a center, and the whole outer surface is coated with a highly-insulated covering layer; the cables are erected in the air or installed underground or underwater and are used for telecommunication or electric power transmission;

cables laid in harsh and humid environments, particularly in high groundwater levels or in rainy regions throughout the year, are becoming increasingly aware of the importance of water resistance. Since the power cable is mostly buried directly, the cable is not only damaged by the pressure of soil and the pressure of human factors, but also prevented from water entering from the damaged part or the joint and then diffusing to the two ends of the cable, which results in the electrical performance degradation of the cable.

Therefore, the existing cable is too simple in structure, easy to generate electric leakage and short circuit, poor in safety performance, incapable of blocking water and preventing moisture in a humid environment, and easy to be invaded by moisture if a good water blocking structure is not provided, so that insulation damage is caused, meanwhile, the stability of the cable is poor, and the wire core is easy to damage by external acting force, so that danger is brought; thus, the existing need is not met, for which we propose a moisture-proof cable.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a moisture-proof cable to solve the cable structure who provides in the above-mentioned background art too simple, take place electric leakage, short circuit easily, the security performance is poor, can not block water in moist environment dampproofingly, if do not have fine block water structure, so the cable receives the invasion of moisture more easily, thereby causes insulating destruction, and cable stability is relatively poor simultaneously, and outside effort damages the sinle silk easily, brings dangerous problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a moisture-proof cable, includes the cable core, the cable core is equipped with five, the cable core includes conductor, shielding layer, interior water blocking layer and internal insulation layer, the inside of cable core all is equipped with the internal insulation layer, the inside of the same centre of a circle of internal insulation layer all is equipped with interior water blocking layer, the inside of the same centre of a circle of interior water blocking layer all is equipped with the shielding layer, the inside of the same centre of a circle of shielding layer all is equipped with the conductor, the surface of cable core is equipped with the spacing ring, it has water blocking material to fill between spacing ring and the cable core, the surface of spacing ring is equipped with the insulating layer, the inner wall of insulating layer is connected with the fixed surface of spacing ring.

Preferably, the outer side wall of one side, away from the cable core, of the limiting ring is evenly provided with four groups of limiting grooves along the outer side of the axis, limiting blocks are arranged inside the limiting grooves, the surfaces of the limiting blocks are in contact with the inner walls of the limiting grooves, and the outer end faces of the limiting blocks are fixedly connected with the inner walls of the insulating layers.

Preferably, one side of the insulating layer, which is far away from the limiting ring, is provided with a water-resistant layer, and one side of the water-resistant layer, which is far away from the insulating layer, is sleeved with a buffer layer.

Preferably, the fireproof layer is sleeved on one side, away from the waterproof layer, of the buffer layer, the armor layer is sleeved on one side, away from the waterproof layer, of the fireproof layer, and the outer protective layer is sleeved on one side, away from the fireproof layer, of the armor layer.

Preferably, the insulating layer is made of rubber, and the fireproof layer is made of low-smoke halogen-free crosslinked polyethylene.

Preferably, the outer surface of the outer protective layer is provided with a rubber protective layer, the waterproof layer comprises two waterproof layers, the waterproof layers are polyvinyl chloride layers, and the two waterproof layers are formed by cross weaving.

Preferably, the insulating layer, the water-resistant layer, the buffer layer, the fire-proof layer, the armor layer and the outer protective layer are connected together through adhesives.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a cable is carried out water proof protection through the outer jacket, avoids water infiltration cable inside, adopts double-deck polyvinyl chloride material through the water blocking layer, can carry out secondary waterproof effect, has improved the dampproofing effect that blocks water;

2. the utility model discloses a water-blocking material is the yarn that blocks water, can expand rapidly many times after meeting water to block up the crack, prevent rivers continuation infiltration, under the elastic buffer of buffer layer, and under the protective action of armor, both can realize that water-blocking material meets water inflation, can avoid water-blocking material inflation back extrusion crack again, cause the phenomenon that the crack tears the grow;

3. the utility model has the advantages that the fireproof layer is made of the low-smoke halogen-free crosslinked polyethylene, so that the cable has the performance of fire resistance, and the smoke discharge amount of the low-smoke halogen-free crosslinked polyethylene is low when the cable is heated, thereby avoiding influencing the environment;

4. the utility model discloses a spacing groove of seting up on the spacing ring, with the inside stopper looks joint of insulating layer to make the stability of each outside protective layer of insulating layer, thereby improve the protection to the cable.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is an overall front view of the present invention;

FIG. 3 is a schematic structural view of the cable core of the present invention;

fig. 4 is a schematic structural diagram of a point a in fig. 2 according to the present invention.

In the figure: 1. a cable core; 101. a conductor; 102. a shielding layer; 103. an inner water blocking layer; 104. an inner insulating layer; 2. a limiting ring; 3. a water blocking material; 4. a limiting groove; 5. a limiting block; 6. an insulating layer; 7. a water-resistant layer; 8. a buffer layer; 9. a fire barrier layer; 10. an armor layer; 11. an outer jacket.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1 to 4, the present invention provides an embodiment: the utility model provides a moisture-proof cable, including cable core 1, cable core 1 is equipped with five, cable core 1 includes conductor 101, shielding layer 102, interior water blocking layer 103 and interior insulating layer 104, the inside of cable core 1 all is equipped with interior insulating layer 104, the inside of the concentric centre of a circle of interior insulating layer 104 all is equipped with interior water blocking layer 103, the inside of the concentric centre of a circle of interior water blocking layer 103 all is equipped with shielding layer 102, the inside of the concentric centre of a circle of shielding layer 102 all is equipped with conductor 101, the surface of cable core 1 is equipped with spacing ring 2, it has water blocking material 3 to fill between spacing ring 2 and the cable core 1, the surface of spacing ring 2 is equipped with insulating layer 6, the inner wall of insulating layer 6 is connected with spacing ring 2's fixed surface.

The lateral wall that spacing ring 2 kept away from 1 one side of cable core evenly is equipped with four sets of spacing grooves 4 along the axis outside, and the inside of spacing groove 4 is provided with stopper 5, stopper 5's surface and the inner wall contact of spacing groove 4, stopper 5's outer terminal surface and insulating layer 6's inner wall fixed connection.

Through the spacing groove 4 of seting up on spacing ring 2, with 5 looks joints of the inside stopper of insulating layer 6 to make the stability of each outside protective layer of insulating layer 6, thereby improve the protection to the cable.

And one side that spacing ring 2 was kept away from to insulating layer 6 is equipped with waterproofing layer 7, and insulating layer 6 material is rubber, and one side cover that insulating layer 6 was kept away from to waterproofing layer 7 is equipped with buffer layer 8, and flame retardant coating 9 has been cup jointed to one side that waterproofing layer 7 was kept away from to buffer layer 8, and flame retardant coating 9 material is low smoke and zero halogen crosslinked polyethylene, and armor 10 has been cup jointed to one side that waterproofing layer 7 was kept away from to flame retardant coating 9, and outer jacket 11 has been cup jointed to one side that flame retardant coating 9 was kept away from to armor 10.

Through under buffer layer 8's elastic buffer, and under the guard action of armor 10, both can realize that water-blocking material 3 meets water inflation, can avoid water-blocking material 3 inflation back extrusion cracks again, cause the phenomenon that the grow was torn in the crack, flame retardant coating 9 is made through low smoke and zero halogen crosslinked polyethylene for the cable has the performance of back-fire relief, and low smoke and zero halogen crosslinked polyethylene discharges fume when being heated and the volume is low, avoids influencing the environment.

The surface of outer jacket 11 is equipped with the rubber protection layer, and water blocking layer 7 is including two-layer waterproof layer, and the waterproof layer is the polyvinyl chloride layer, adopts double-deck polyvinyl chloride material through water blocking layer 7, can play the effect of water proof, and two waterproof layers are the fork form and weave and form, and is further, all links together through the adhesive between insulating layer 6, water blocking layer 7, buffer layer 8, flame retardant coating 9, armor 10 and the outer jacket 11.

In summary, when the cable is used, the cable core 1 comprises the conductor 101, the shielding layer 102, the inner water blocking layer 103 and the inner insulating layer 104 which are sequentially arranged from inside to outside, the inner water blocking layer 103 is formed by wrapping a water blocking tape, the water blocking and moisture resisting performance of the cable core 1 can be further improved, the service life is prolonged, the water blocking layer 7 is made of a double-layer polyvinyl chloride material and can play a role of water blocking, the water blocking material 3 is made of water blocking yarns, the water blocking yarns are extruded and formed through melting, and can expand for multiple times after meeting water, so that cracks are blocked, water flow is prevented from continuously permeating, under the elastic buffer of the buffer layer 8 and the protection effect of the armor layer 10, the water blocking material 3 can expand when meeting water, the phenomenon that the cracks are torn and enlarged after expanding of the water blocking material 3 can be avoided, the fireproof layer 9 is made of low-smoke-free crosslinked polyethylene, so that the cable has the performance of fire resistance, and the smoke-free amount of the halogen-free crosslinked polyethylene is low when being heated is low, so that the environment is not influenced, the limit groove 4 formed in the limit ring 2 is connected with the limit block 5 in the insulating layer 6, so that the outer part of the insulating layer is connected, and the protection layer is connected, so that the outer part of the cable, and the protection layer is improved, and the protection layer.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a dampproofing cable, includes cable core (1), its characterized in that: cable core (1) is equipped with five, cable core (1) includes conductor (101), shielding layer (102), internal water resistance layer (103) and internal insulation layer (104), the inside of cable core (1) all is equipped with internal insulation layer (104), the inside of internal insulation layer (104) centre of a circle all is equipped with internal water resistance layer (103), the inside of internal water resistance layer (103) centre of a circle all is equipped with shielding layer (102), the inside of shielding layer (102) centre of a circle all is equipped with conductor (101), the surface of cable core (1) is equipped with spacing ring (2), it has water-blocking material (3) to fill between spacing ring (2) and cable core (1), the surface of spacing ring (2) is equipped with insulating layer (6), the inner wall of insulating layer (6) is connected with the fixed surface of spacing ring (2).

2. A moisture resistant cable as claimed in claim 1, wherein: the outer side wall of one side of the cable core (1) is kept away from by the limiting ring (2) is evenly provided with four groups of limiting grooves (4) along the axis outside, the inside of the limiting grooves (4) is provided with limiting blocks (5), the surfaces of the limiting blocks (5) are in contact with the inner walls of the limiting grooves (4), and the outer end faces of the limiting blocks (5) are fixedly connected with the inner walls of the insulating layers (6).

3. A moisture resistant cable as claimed in claim 1, wherein: one side of the insulating layer (6) far away from the limiting ring (2) is provided with a water-resistant layer (7), and one side of the water-resistant layer (7) far away from the insulating layer (6) is sleeved with a buffer layer (8).

4. A moisture resistant cable as claimed in claim 3, wherein: one side of the buffer layer (8) far away from the waterproof layer (7) is sleeved with a fireproof layer (9), one side of the fireproof layer (9) far away from the waterproof layer (7) is sleeved with an armor layer (10), and one side of the armor layer (10) far away from the fireproof layer (9) is sleeved with an outer protective layer (11).

5. A moisture resistant cable as claimed in claim 4, wherein: the insulating layer (6) is made of rubber, and the fireproof layer (9) is made of low-smoke halogen-free crosslinked polyethylene.

6. A moisture resistant cable as claimed in claim 4, wherein: the outer surface of the outer protective layer (11) is provided with a rubber protective layer, the waterproof layer (7) comprises two waterproof layers, the waterproof layers are polyvinyl chloride layers, and the two waterproof layers are formed by weaving in a crossed mode.

7. A moisture resistant cable as claimed in claim 1, wherein: the insulating layer (6), the waterproof layer (7), the buffer layer (8), the fire-proof layer (9), the armor layer (10) and the outer protective layer (11) are connected together through adhesives.