CN216719571U - Water-blocking, impact-resistant, rat-proof and ant-proof multi-core photoelectric composite cable - Google Patents

Abstract

The utility model discloses a water-blocking, impact-resistant, rat-proof and ant-proof multi-core photoelectric composite cable which comprises a cable core, wherein the outer wall of the cable core is sequentially coated with a first wrapping tape, an inner sheath, an armor layer, a second wrapping tape, an outer sheath and a protective layer from inside to outside; the armor layer is a steel wire armor, and waterproof glue is coated on the outer wall of the steel wire armor; the first wrapping band and the second wrapping band both adopt waterproof wrapping bands. According to the utility model, the waterproof glue is coated on the outer wall of the steel wire armor and is coated by the waterproof wrapping tape, so that the longitudinal water-blocking performance of the photoelectric composite cable can be effectively improved.

Description

Water-blocking, impact-resistant, rat-proof and ant-proof multi-core photoelectric composite cable

Technical Field

The utility model belongs to the technical field of photoelectric composite cables, and particularly relates to a water-blocking, impact-resistant, rat-proof and ant-proof multi-core photoelectric composite cable.

Background

The photoelectric composite cable is a novel access mode at present, can collect optic fibre, transmission of electricity copper line in an organic whole, solves broadband access, equipment power consumption, signal transmission's problem. At present, the communication bandwidth is continuously improved, the cost of a communication system is gradually reduced, the advantages of optical fiber communication transmission are more obvious, and signal transmission and power transmission are not influenced mutually, so that the application scenes of the photoelectric composite cable are gradually increased. At present, the photoelectric composite cable mainly comprises a photoelectric composite cable for power communication, a photoelectric composite cable for a communication access network, a photoelectric composite cable for electronic products, a submarine photoelectric composite cable and the like, wherein the photoelectric composite cable is most widely applied and has mature technology.

However, the photoelectric composite cable still has some defects and shortcomings in the actual use process: 1. the optical fiber has poor mechanical strength and crisp texture, so the optical fiber is easy to break, and once the optical fiber is broken, the photoelectric composite cable loses the signal transmission capability, and the maintenance cost is extremely high; 2. because of different use scenes and use modes, the photoelectric composite cable can be bitten by rats and ants, geological disasters or external force impact and the like to cause the damage of the sheath of the photoelectric composite cable and the breakage of the wire core; 3. the existing waterproof performance of the photoelectric composite cable is insufficient, when the environment where the photoelectric composite cable is located is humid or a serious flood occurs, the aging of the composite cable can be aggravated, and the composite cable of the optical cable can be punctured after water enters the composite cable. In view of the above-mentioned drawbacks of the photoelectric composite cable, a solution is needed.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims to provide a waterproof, impact-resistant, rat-proof and ant-proof multi-core photoelectric composite cable aiming at the defects of the prior art.

The technical scheme for realizing the utility model is as follows:

the utility model relates to a water-blocking, impact-resistant, rat-proof and ant-proof multi-core photoelectric composite cable which comprises a cable core, wherein a first wrapping tape, an inner sheath, an armor layer, a second wrapping tape, an outer sheath and a protective layer are sequentially wrapped on the outer wall of the cable core from inside to outside; the armor layer is a steel wire armor, and waterproof glue is coated on the outer wall of the steel wire armor.

According to the preferable technical scheme, the cable core comprises a plurality of cables, a plurality of optical cables and fillers; the cable comprises a conductor and a first insulating layer, wherein the outer wall of the conductor is coated with the first insulating layer; the optical cable comprises an optical fiber unit, a second insulating layer and a first reinforcing layer, wherein the second insulating layer and the first reinforcing layer are sequentially coated on the outer wall of the optical fiber unit; the filler is filled in the interstices of the electrical and optical cables within the first cladding.

Preferably, the cable core is provided with three layers, including a central layer, a middle layer and a peripheral layer; the central layer is provided with three groups of cables; the middle layer is provided with three groups of optical cables and six groups of electric cables, the six groups of electric cables are divided into two groups, and the optical cables are arranged at intervals; the peripheral layer is provided with 15 groups of cables, and the first wrapping band wraps the peripheral layer. The cable core is arranged in multiple layers, so that the bending performance of the cable core can be improved, and the photoelectric composite cable can be laid conveniently.

Preferably, the conductor adopts the copper wire, first insulating layer and second insulating layer all set up to the EP rubbers insulating layer, first enhancement layer sets up to the aramid weaving layer. According to the utility model, an ethylene propylene rubber insulating layer is extruded outside a loose tube of an optical fiber unit, and an aramid woven layer is arranged outside the insulating layer; the ethylene propylene rubber insulating layer has excellent heat resistance and aging resistance, can ensure sufficient elasticity even at low temperature, and can effectively buffer external force impact; aramid fiber is woven outside the first insulating layer, so that the tensile and impact resistance of the optical fiber unit can be further effectively improved.

Preferably, a second reinforcing layer is arranged between the first wrapping tape and the inner sheath, and the second reinforcing layer is an aramid woven layer. The tensile and impact resistance of the cable core can be further effectively improved by the second reinforcing layer.

Preferably, the inner sheath and the outer sheath are both elastomer sheaths, and the protective layer is a nylon layer. According to the utility model, the nylon layer is arranged, so that the nylon layer can well prevent the biting of rats and ants, the softness and corrosion resistance of the photoelectric composite cable are protected while the biting of rats and ants is effectively avoided, the outer sheath can still play a role in protecting the photoelectric composite cable even if the nylon layer of the protective layer is seriously damaged, and the service life of the optical fiber composite cable is further prolonged.

Preferably, the first wrapping tape and the second wrapping tape are both waterproof wrapping tapes; the waterproof glue is chloroprene waterproof glue, and the steel wire armor is galvanized steel wire armor. According to the utility model, the waterproof wrapping belt is wrapped when the cable core is cabled, the chloroprene waterproof adhesive is coated outside the steel wire armor and is wrapped by the waterproof wrapping belt, and the longitudinal water-blocking performance of the photoelectric composite cable can be effectively improved by arranging a plurality of layers of waterproof layers.

By adopting the technical scheme, the utility model has the following beneficial effects:

(1) according to the utility model, the outer wall of the steel wire armor is coated with the waterproof glue and is wrapped with the second wrapping tape, so that the longitudinal water-blocking performance of the photoelectric composite cable can be improved.

(2) According to the utility model, an ethylene propylene rubber insulating layer is extruded outside a loose tube of an optical fiber unit, and an aramid woven layer is arranged outside the insulating layer; the ethylene propylene rubber insulating layer has excellent heat resistance and aging resistance, can ensure sufficient elasticity even at low temperature, and can effectively buffer external force impact; aramid fiber is woven outside the first insulating layer, so that the tensile and impact resistance of the optical fiber unit can be further effectively improved.

(3) According to the utility model, the outer sheath and the protective layer are arranged on the outer side of the photoelectric composite cable, the outer sheath adopts the elastomer sheath, the protective layer adopts the nylon layer, the nylon layer can well prevent the gnawing of rats and ants, the softness and the corrosion resistance of the photoelectric composite cable are protected while the gnawing of rats and ants is effectively avoided, even if the nylon layer of the protective layer is seriously damaged, the outer sheath can still play a role in protecting the photoelectric composite cable, and the service life of the optical fiber composite cable is further prolonged.

(4) According to the utility model, the waterproof wrapping tape is wrapped when the cable core is cabled, the neoprene waterproof glue is coated outside the steel wire armor and is wrapped by the waterproof wrapping tape, and the longitudinal water-blocking performance of the photoelectric composite cable can be effectively improved by arranging a plurality of waterproof layers.

Drawings

In order that the present disclosure may be more readily and clearly understood, reference is now made to the following detailed description of the present disclosure taken in conjunction with the accompanying drawings, in which:

fig. 1 is a schematic structural diagram of the photoelectric composite cable according to the present invention.

In the figure, 1-cable, 101-conductor, 102-first insulation layer, 2-optical cable, 201-optical fiber unit, 202-second insulation layer, 203-first reinforcement layer, 3-first wrapping tape, 4-second reinforcement layer, 5-inner sheath, 6-steel wire armor, 7-neoprene, 8-second wrapping tape, 9-outer sheath, 10-protective layer.

Detailed Description

The technical solution of the present invention is described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the embodiments.

Example (b): the utility model provides a multi-core photoelectric composite cable of protection against water, shock resistance rat and ant, as shown in figure 1, the photoelectric composite cable of this embodiment includes the cable core, and the cladding has first wrapping tape 3, second enhancement layer 4, inner sheath 5, armor, second wrapping tape 8, oversheath 9 and protective layer 10 from inside to outside in proper order on the outer wall of cable core.

The cable core in the embodiment comprises a cable 1, an optical cable 2 and fillers; the cable 1 comprises a conductor 101 and a first insulating layer 102, wherein the conductor 101 is a copper wire, and the first insulating layer 102 is an ethylene propylene rubber insulating layer; the outer wall of the conductor 101 is coated with a first insulating layer 102; the optical cable 2 comprises an optical fiber unit 201, a second insulating layer 202 and a first reinforcing layer 203, wherein the outer wall of the optical fiber unit 201 is sequentially coated with the second insulating layer 202 and the first reinforcing layer 203, the second insulating layer 202 is an ethylene propylene rubber insulating layer, and the first reinforcing layer 203 is an aramid braid; the optical cable 2 is designed in such a structure that the performance of the optical fiber unit 201 can be improved, an ethylene propylene rubber insulating layer is extruded outside a loose tube of the optical fiber unit 201, and an aramid woven layer is arranged outside the insulating layer; the ethylene propylene rubber insulating layer has excellent heat resistance and aging resistance, can ensure sufficient elasticity even at low temperature, and can effectively buffer external force impact; aramid fiber is woven outside the first insulating layer 102, so that tensile and impact resistance of the optical fiber unit 201 can be further effectively improved. The filler is filled in the gaps of the cable 1 and the optical cable 2 in the first package 3. The cable core in the embodiment is provided with three layers, wherein each layer comprises a central layer, a middle layer and a peripheral layer; the central layer is provided with three groups of cables 1; the middle layer is provided with three groups of optical cables 2 and six groups of cables 1, the six groups of cables 1 are divided into two groups, and the optical cables 2 are arranged at intervals; the outer surrounding layer is provided with 15 groups of cables 1, and a first wrapping tape 3 wraps the outer surrounding layer. This embodiment is through carrying out the multilayer setting to the cable core, can improve the performance of buckling of cable core, is convenient for lay of photoelectric composite cable.

The second reinforcing layer 4 in the embodiment is an aramid woven layer; the tensile and impact resistance of the cable core can be further effectively improved by the arrangement of the second reinforcing layer 4; the first wrapping belt 3 and the second wrapping belt 8 are both waterproof wrapping belts, the armor layer is preferably a steel wire armor 6, the steel wire is preferably a galvanized steel wire, and the outer wall of the steel wire armor 6 is coated with chloroprene waterproof glue 7; according to the embodiment, the waterproof wrapping tape is wrapped when the cable core is cabled, the chloroprene waterproof glue 7 is coated outside the steel wire armor and wrapped by the waterproof wrapping tape, and the longitudinal water blocking performance of the photoelectric composite cable can be effectively improved by arranging multiple layers of waterproof layers.

In the embodiment, the inner sheath 5 and the outer sheath 9 both adopt elastomer sheaths, and the protective layer 10 is a nylon layer; the outer sheath 9 and the protective layer 10 are arranged on the outer side of the optical-electrical composite cable, the outer sheath 9 is an elastic body sheath, the protective layer 10 is a nylon layer, the nylon layer can well prevent the gnawing of rats and ants, the softness and corrosion resistance of the optical-electrical composite cable are protected while the gnawing of rats and ants is effectively avoided, even if the nylon layer of the protective layer 10 is seriously damaged, the outer sheath 9 can still play a role in protecting the optical-electrical composite cable, and the service life of the optical-electrical composite cable is further prolonged.

The above embodiments are provided to further explain the objects, technical solutions and advantages of the present invention in detail, it should be understood that the above embodiments are only examples of the present invention and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. A water-blocking, impact-resistant, rat-proof and ant-proof multi-core photoelectric composite cable is characterized by comprising a cable core, wherein a first wrapping tape, an inner sheath, an armor layer, a second wrapping tape, an outer sheath and a protective layer are sequentially wrapped on the outer wall of the cable core from inside to outside; the armor layer is a steel wire armor, and waterproof glue is coated on the outer wall of the steel wire armor.

2. The opto-electrical composite cable according to claim 1, wherein the cable core comprises a plurality of electrical cables, a plurality of optical cables, and a filler; the cable comprises a conductor and a first insulating layer, wherein the outer wall of the conductor is coated with the first insulating layer; the optical cable comprises an optical fiber unit, a second insulating layer and a first reinforcing layer, wherein the second insulating layer and the first reinforcing layer are sequentially coated on the outer wall of the optical fiber unit; the filler is filled in the interstices of the electrical and optical cables within the first package.

3. The optical-electrical composite cable of claim 2, wherein the cable core is provided with three layers including a central layer, an intermediate layer, and a peripheral layer; the central layer is provided with three groups of cables; the middle layer is provided with three groups of optical cables and six groups of electric cables, the six groups of electric cables are divided into two groups, and the optical cables are arranged at intervals; the peripheral layer is provided with 15 groups of cables, and the first wrapping band wraps the peripheral layer.

4. The photoelectric composite cable according to claim 2, wherein the conductor is a copper wire, the first insulating layer and the second insulating layer are both formed as ethylene propylene rubber insulating layers, and the first reinforcing layer is formed as an aramid braid layer.

5. The photoelectric composite cable of claim 1, wherein a second reinforcing layer is disposed between the first tape and the inner jacket, and the second reinforcing layer is an aramid braid.

6. The optical-electrical composite cable according to claim 1, wherein the inner sheath and the outer sheath are both elastomer sheaths, and the protective layer is a nylon layer.

7. The opto-electrical composite cable according to claim 1, wherein the first and second wrapping tapes are both waterproof wrapping tapes; the waterproof glue is chloroprene waterproof glue, and the steel wire armor is galvanized steel wire armor.

Images