CN220208598U - Composite cable - Google Patents

Abstract

The utility model discloses a composite cable, which comprises a halogen-free flame-retardant outer sheath, wherein an inner sheath is fixedly arranged in the halogen-free flame-retardant outer sheath, a steel tape armor layer is fixedly arranged in the inner sheath, steel wires are fixedly arranged between the inner sheath and the steel tape armor layer, a filling layer is fixedly arranged in the steel tape armor layer, water-blocking copper conductors are equidistantly arranged in the filling layer, a conductor shielding layer is sleeved on the surface of the water-blocking copper conductors, and an insulating layer is sleeved on the surface of the conductor shielding layer. According to the utility model, the steel tape armor layer is fixedly arranged in the inner sheath, so that the inner sheath can be used for preventing moisture from immersing in a sealed metal sheath wrapped by the composite cable, so that the influence of excessive voltage on the safety of people and related equipment is prevented, the efficiency of power transmission is improved, the composite cable can be protected by using the steel tape armor layer and the steel wire, the excavated composite cable is prevented from being extruded in the ground, and the composite cable is protected.

Description

Composite cable

Technical Field

The utility model relates to the technical field of cables, in particular to a composite cable.

Background

The composite cable is a cable similar to a rope and is formed by twisting at least two wires in each group of several or several groups of wires, each group of wires are mutually insulated and are often twisted around a center, the whole outer surface of the cable is covered with a high-insulation covering layer, the cable has the characteristics of inner electrifying and outer insulation, the photoelectric composite cable is suitable for being used as a transmission line in a broadband access network system, and the novel access mode is a novel access mode which integrates optical fibers and power transmission copper wires and can solve the problems of broadband access, equipment electricity utilization and signal transmission.

Through retrieving, patent publication number CN202196594U discloses a composite cable, this composite cable from inside to outside by core area, cohesion ester area, first polyethylene area, second polyethylene area, outer polyester area and aluminium area cladding form, the cladding has the sheath outside the aluminium area, however the too high voltage of contrast file and current composite cable influences the safety of people and relevant equipment easily, influence power transmission's efficiency, moreover inconvenient multiple protection to composite cable, influence the extrusion in the ground of the composite cable that is excavated, lead to composite cable impaired, also inconvenient insulation shielding to composite cable's sinle silk, influence electric field's evenly distributed, reduce breakdown strength and cable partial discharge characteristic usefulness.

Disclosure of Invention

The utility model aims to provide a composite cable, which utilizes an inner sheath to prevent water from immersing in a sealed metal sheath wrapped by the composite cable, prevents the safety of people and related equipment from being influenced by excessive voltage, improves the efficiency of power transmission, can utilize a steel tape armor layer and a steel wire to carry out multiple protection on the composite cable, prevents the excavated composite cable from being extruded in the ground, protects the composite cable, utilizes a filling layer made of epoxy resin glue, and is dried and fixed into chemical substances which are insoluble in water and are not easy to melt when being heated after a sealing curing agent is added through a high polymer material chemical substance, so that the adhesive force is strong, the sufficient impact toughness is provided, the hardness is high and the corrosion resistance is high, and then, a water-blocking copper conductor, a conductor shielding layer, an insulating layer and a semiconductive PE sheath are utilized to carry out insulation shielding on a wire core of the composite cable so as to uniformly distribute an electric field and improve the breakdown strength and the cable partial discharge characteristic, thereby solving the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a composite cable, includes the fire-retardant oversheath of no steamed, the inside of the fire-retardant oversheath of no steamed is fixedly provided with the inner sheath, the inside of inner sheath is fixedly provided with the steel tape armor, fixedly provided with steel wire between inner sheath and the steel tape armor, the inside of steel tape armor is fixedly provided with the filling layer, the inside equidistance of filling layer is provided with the copper conductor that blocks water, the conductor shielding layer has been cup jointed on the surface of the copper conductor that blocks water, the insulating layer has been cup jointed on the surface of conductor shielding layer, semiconductive PE sheath has been cup jointed on the surface of insulating layer, the one end of copper conductor that blocks water is fixed to be provided with the optical cable body, the band has been cup jointed on the surface of optical cable body, the cable shielding layer has been cup jointed on the surface of band.

Preferably, an inner liner layer is fixedly arranged in the halogen-free flame-retardant outer sheath, and a connecting pipe is sleeved on the surface of the halogen-free flame-retardant outer sheath.

Preferably, an inner protection layer is fixedly arranged in the steel tape armor layer, and the inner protection layer is made of alloy lead materials.

Preferably, the top of connecting pipe runs through and is provided with external screw thread joint, and external screw thread joint's top activity is provided with the internal thread cover, the fixed plug bush that is provided with in bottom of connecting pipe, the opposite side of plug bush is fixed and is provided with the connecting band, the inside of connecting pipe is fixed and is provided with waterproof pad.

Preferably, a conductor plug is installed in the waterproof pad in a penetrating mode, and an optical cable plug is installed at one end of the conductor plug in a penetrating mode.

Preferably, the bottom of the connecting belt is fixedly provided with a sealing cover, and the bottom of the sealing cover is fixedly provided with an adjusting block.

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

(1) The steel tape armor layer is fixedly arranged in the inner sheath, so that the inner sheath can be used for preventing moisture from immersing in a sealed metal sheath wrapped by the composite cable, the influence of excessive voltage on the safety of people and related equipment is prevented, the efficiency of power transmission is improved, the composite cable can be protected by using the steel tape armor layer and the steel wire, the excavated composite cable is prevented from being extruded in the ground, and the composite cable is protected;

(2) The inside of the steel tape armor layer is fixedly provided with the filling layer, the filling layer which can be made of epoxy resin glue is dried and fixed into chemical substances which are insoluble in water and difficult to melt when heated after the sealing and curing agent is added through the chemical substances of the high polymer materials, the adhesive force is strong, the sufficient impact toughness and the hardness are high, the corrosion resistance are realized, and then the water-blocking copper conductor, the conductor shielding layer, the insulating layer and the semiconductive PE sheath are utilized for insulating and shielding the wire core of the composite cable so as to uniformly distribute an electric field and improve the breakdown strength and the partial discharge characteristic of the cable.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a schematic diagram of a partial structure of a water-blocking copper conductor in the present utility model.

Fig. 3 is a schematic side view of a partial structure of a plug bush according to the present utility model.

Fig. 4 is a schematic side view of a water-blocking copper conductor in accordance with the present utility model.

Fig. 5 is a schematic side view of a partial structure of an optical cable body according to the present utility model.

The meaning of each reference numeral in the figures is: 1. an inner sheath; 101. a steel wire; 102. a steel tape armor layer; 103. an inner protective layer; 2. a halogen-free flame retardant outer jacket; 201. an inner liner layer; 3. a connecting pipe; 301. an internal thread sleeve; 302. a plug bush; 303. a waterproof pad; 304. a conductor plug; 305. an optical cable plug; 306. an external threaded joint; 4. sealing cover; 401. a connecting belt; 402. an adjusting block; 5. a water-blocking copper conductor; 501. a conductor shielding layer; 502. a semiconductive PE sheath; 503. an insulating layer; 6. a filling layer; 7. an optical cable body; 701. a belting; 702. a cable shield.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides a technical scheme that:

1-5, a composite cable comprises a halogen-free flame-retardant outer sheath 2, wherein an inner sheath 1 is fixedly arranged in the halogen-free flame-retardant outer sheath 2, a steel tape armor layer 102 is fixedly arranged in the inner sheath 1, and steel wires 101 are fixedly arranged between the inner sheath 1 and the steel tape armor layer 102;

specifically, as shown in fig. 1, 2, 4 and 5, when in use, the steel tape armor layer 102 is fixedly arranged in the inner sheath 1, so that the halogen-free flame retardant outer sheath 2 can be used for improving the flame retardance of the composite cable, then the inner sheath 1 is used for preventing moisture from immersing into a layer of sealed metal wrapping wrapped by the composite cable, so that the safety of people and related equipment is prevented from being influenced by excessive voltage, the power transmission efficiency is improved, the composite cable can be protected in multiple ways by using the steel tape armor layer 102 and the steel wires 101, the excavated composite cable is prevented from being extruded in the ground, and the composite cable is protected;

the inside of the steel tape armor 102 is fixedly provided with a filling layer 6, water-blocking copper conductors 5 are equidistantly arranged in the filling layer 6, the surfaces of the water-blocking copper conductors 5 are sleeved with a conductor shielding layer 501, the surfaces of the conductor shielding layer 501 are sleeved with an insulating layer 503, the surfaces of the insulating layer 503 are sleeved with a semiconductive PE sheath 502, one end of the water-blocking copper conductors 5 is fixedly provided with an optical cable body 7, the surfaces of the optical cable body 7 are sleeved with a wrapping tape 701, the surfaces of the wrapping tape 701 are sleeved with a cable shielding layer 702, and the inside of the halogen-free flame-retardant outer sheath 2 is fixedly provided with an inner liner 201;

specifically, as shown in fig. 1, when in use, the filling layer 6 is fixedly arranged in the steel tape armor layer 102, the filling layer 6 made of epoxy resin glue can be used, the sealing curing agent is added into the high polymer material chemical substance, and then the high polymer material chemical substance is dried and fixed into chemical substance which is insoluble in water and difficult to melt when heated, so that the high polymer material chemical substance has strong adhesion, sufficient impact toughness and high hardness and corrosion resistance, and then the water-blocking copper conductor 5, the conductor shielding layer 501, the insulating layer 503 and the semiconductive PE sheath 502 are used for insulating and shielding the wire core of the composite cable so as to uniformly distribute an electric field, improve breakdown strength and cable partial discharge characteristics, and the inner liner 201 is used for protecting the halogen-free flame-retardant outer sheath 2 so as to prevent the composite cable from being pricked;

the surface of the halogen-free flame-retardant outer sheath 2 is sleeved with a connecting pipe 3, the top of the connecting pipe 3 is provided with an external threaded joint 306 in a penetrating way, the top of the external threaded joint 306 is provided with an internal threaded sleeve 301 in a movable way, the bottom of the connecting pipe 3 is fixedly provided with a plug bush 302, the other side of the plug bush 302 is fixedly provided with a connecting belt 401, the bottom of the connecting belt 401 is fixedly provided with a sealing cover 4, the bottom of the sealing cover 4 is fixedly provided with an adjusting block 402, the inside of the connecting pipe 3 is fixedly provided with a waterproof pad 303, the inside of the waterproof pad 303 is provided with a conductor plug 304 in a penetrating way, and one end of the conductor plug 304 is provided with an optical cable plug 305 in a penetrating way;

specifically, as shown in fig. 1 and 3, when in use, the connecting pipe 3 is sleeved on the surface of the halogen-free flame-retardant outer sheath 2, the internal thread sleeve 301 can be rotated, then the connecting pipe 3 is fixed on the surface of the composite cable, then the connecting belt 401 is matched with the sealing cover 4 to seal the plug bush 302, the influence of water seepage and dust of the composite cable is prevented, and then the composite cable is spliced by the plug bush 302;

an inner protective layer 103 is fixedly arranged in the steel tape armor layer 102, and the inner protective layer 103 is made of alloy lead materials;

specifically, as shown in fig. 1 and fig. 2, during use, the inner sheath 103 is fixedly arranged in the steel tape armor layer 102, so that the inner sheath 103 can be used for adopting a sealed metal sheath, the influence of excessive sheath voltage on the safety of people and related equipment is prevented, and the transmission efficiency is improved.

Working principle: when the halogen-free flame-retardant composite cable is used, firstly, the flame retardance of the composite cable is improved through the halogen-free flame-retardant outer sheath 2, then, the inner sheath 1 is used for preventing moisture from immersing into a layer of sealed metal wrapping wrapped by the composite cable, so that the influence of excessive voltage on the safety of people and related equipment is prevented, the efficiency of power transmission is improved, and the composite cable can be subjected to multiple protection by the steel tape armor layer 102 and the steel wires 101;

secondly, the filling layer 6 made of epoxy resin glue is dried and fixed into chemical substances which are insoluble in water and difficult to melt when heated after a sealing curing agent is added by using high polymer material chemical substances, the adhesive force is strong, the sufficient impact toughness is achieved, the hardness is high and the corrosion resistance is high, then the water-blocking copper conductor 5, the conductor shielding layer 501, the insulating layer 503 and the semiconductive PE sheath 502 are utilized to carry out insulating shielding on the wire core of the composite cable so as to uniformly distribute an electric field, improve the breakdown strength and the partial discharge characteristic of the cable, and then the lining layer 201 is utilized to protect the halogen-free flame-retardant outer sheath 2;

finally, the connecting pipe 3 is fixed on the surface of the composite cable by rotating the internal thread sleeve 301, then the sleeve 302 is sealed by the connecting belt 401 matched with the sealing cover 4 to prevent the influence of water seepage and dust of the composite cable, and then the composite cable is spliced by the sleeve 302.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (6)

1. The utility model provides a composite cable, includes no steamed fire-retardant oversheath (2), its characterized in that: the inside of the halogen-free flame retardant oversheath (2) is fixedly provided with an inner sheath (1), the inside of the inner sheath (1) is fixedly provided with a steel tape armor layer (102), steel wires (101) are fixedly arranged between the inner sheath (1) and the steel tape armor layer (102), a filling layer (6) is fixedly arranged in the steel tape armor layer (102), water-blocking copper conductors (5) are arranged at equal intervals in the filling layer (6), a conductor shielding layer (501) is sleeved on the surface of the water-blocking copper conductors (5), an insulating layer (503) is sleeved on the surface of the conductor shielding layer (501), a semiconductive PE sheath (502) is sleeved on the surface of the insulating layer (503), an optical cable body (7) is fixedly arranged at one end of the water-blocking copper conductors (5), a wrapping tape (701) is sleeved on the surface of the optical cable body (7), and a cable shielding layer (702) is sleeved on the surface of the wrapping tape (701).

2. A composite cable according to claim 1, wherein: an inner liner (201) is fixedly arranged in the halogen-free flame-retardant outer sheath (2), and a connecting pipe (3) is sleeved on the surface of the halogen-free flame-retardant outer sheath (2).

3. A composite cable according to claim 1, wherein: an inner protection layer (103) is fixedly arranged in the steel tape armor layer (102), and the inner protection layer (103) is made of alloy lead materials.

4. A composite cable according to claim 2, wherein: the top of connecting pipe (3) runs through and is provided with external screw thread joint (306), and the top activity of external screw thread joint (306) is provided with internal screw thread cover (301), the fixed plug bush (302) that is provided with in bottom of connecting pipe (3), the opposite side of plug bush (302) is fixed and is provided with connecting band (401), the inside of connecting pipe (3) is fixed and is provided with waterproof pad (303).

5. A composite cable according to claim 4, wherein: a conductor plug (304) is installed in the waterproof pad (303) in a penetrating mode, and an optical cable plug (305) is installed at one end of the conductor plug (304) in a penetrating mode.

6. A composite cable according to claim 4, wherein: the bottom of the connecting belt (401) is fixedly provided with a sealing cover (4), and the bottom of the sealing cover (4) is fixedly provided with an adjusting block (402).