CN112233847A

CN112233847A - Butterfly-shaped introduced photoelectric composite cable

Info

Publication number: CN112233847A
Application number: CN202011113182.5A
Authority: CN
Inventors: 王晓艳; 任建刚
Original assignee: Yangtze Optical Fibre and Cable Co Ltd
Current assignee: Changfei photoelectric cable (Suzhou) Co.,Ltd.
Priority date: 2020-10-17
Filing date: 2020-10-17
Publication date: 2021-01-15
Anticipated expiration: 2040-10-17
Also published as: CN112233847B; WO2022077730A1

Abstract

The invention belongs to the technical field of electric cables and communication, and relates to a butterfly-shaped lead-in photoelectric composite cable which is provided with a sheath unit, a first power transmission body, a second power transmission body and a butterfly-shaped lead-in optical unit; the sheath unit is composed of a first sheath, a second sheath and a third sheath, wherein the butterfly-shaped introduction light unit is composed of an optical fiber, a first reinforcing piece positioned on the upper side of the optical fiber, a second reinforcing piece positioned on the lower side of the optical fiber and a butterfly-shaped protective sleeve for coating the optical fiber, the first reinforcing piece and the second reinforcing piece; the optical communication device is characterized in that the first power transmission body is positioned in the second sheath, the second power transmission body is positioned in the third sheath, and the butterfly-shaped leading-in optical unit is positioned in the optical communication hole. The invention has the following main beneficial effects: the cable laying device has the advantages of simple structure, easiness in manufacturing, low material consumption, low cost, excellent heat dissipation effect and capability of laying cables with two functions at one time, so that the construction efficiency is higher.

Description

Butterfly-shaped introduced photoelectric composite cable

Technical Field

The invention belongs to the technical field of power cables and communication, and particularly relates to a butterfly-shaped introduced photoelectric composite cable.

Background

CN211125087U discloses strenghthened type 5G is protection against rodents ant prevention photoelectricity hybrid cable for little base station of wireless communication, parallel arrangement about two cables, the middle part downside on two cables is located to two optical cable symmetries, the band cladding is in the cable and the optical cable outside, the filler is filled in the inboard cable of band and optical cable and packing rope outside, the band outside has the shielding layer in proper order the cladding, sheath and tegument, it has the bundle yarn to nest between band and the filler or between band and the shielding layer, the braid has the tear rope to nest between shielding layer and the sheath or between band and the shielding layer. The optical cable and the cable are distributed in a cross shape, the cable core structure is stable, the optical cable adopts a butterfly-shaped optical cable and is suitable for the optical cable to enter a house, the outer protective layer, the insulating layer and the sheath are all made of low-smoke halogen-free polyolefin, the flame retardant and anti-electromagnetic interference performance is good, the rounding degree of the mixed cable is effectively guaranteed by the binding yarns and the fillers, the sheath can be effectively torn by the symmetrical tearing ropes, the pressure resistance and the wear resistance of the nylon outer layer can be improved, and the damage of rats and ants can be effectively prevented. The structure is complex, the volume is large and the cost is high. The simple enhanced rat-proof and termite-proof photoelectric hybrid cable for the small base station disclosed in CN211125126U also has corresponding defects.

CN105761824A discloses an optical-electrical composite cable with parallel cable cores for power or communication, which comprises a cable core, a first protective layer located outside the cable core, and an outer sheath located outside the first protective layer; the cable core is characterized by comprising two insulated wires, a butterfly-shaped optical cable, two round filling ropes and an oval filling rope. The optical fiber cable solves the technical problem of non-roundness, has large influence on optical transmission due to electric heating, and has a complex structure and high cost.

Disclosure of Invention

In order to solve the problems, the invention aims to disclose that the invention is realized by adopting the following technical scheme.

A butterfly-shaped lead-in photoelectric composite cable is provided with a sheath unit, a first power transmission body, a second power transmission body and a butterfly-shaped lead-in optical unit; the sheath unit consists of a first sheath, a second sheath, a third sheath and a fourth sheath, wherein the first power transmission body consists of a first conductor and a first insulating layer for coating the first conductor, the second power transmission body consists of a second conductor and a second insulating layer for coating the second conductor, the butterfly-shaped leading-in light unit consists of an optical fiber, a first reinforcing piece positioned on the upper side of the optical fiber, a second reinforcing piece positioned on the lower side of the optical fiber and a butterfly-shaped protective sleeve for coating the optical fiber, the first reinforcing piece and the second reinforcing piece, a first tearing opening is formed in the edge of the butterfly-shaped protective sleeve on the left side of the optical fiber, and a second tearing opening is formed in the edge of the butterfly-shaped protective sleeve on the right side of the optical fiber; it is characterized in that the inner edge of the first sheath and the inner edge of the third sheath are on the same cylindrical surface, the outer edge of the first sheath and the outer edge of the third sheath are on the same cylindrical surface, the second sheath is in a circular cylinder structure, the fourth sheath is in a circular cylinder structure, a second power transmission hole is arranged in the second sheath, a third power transmission hole is arranged in the fourth sheath, one end of the first sheath is connected with the upper edge of the second sheath, the other end of the first sheath is connected with the upper edge of the fourth sheath, one end of the third sheath is connected with the upper edge of the second sheath, the other end of the third sheath is connected with the upper edge of the fourth sheath, the inner edge of the first sheath and the right edge of the second sheath, an optical communication hole is formed between the inner edge of the third sheath and the left edge of the fourth sheath, the first power transmission body is positioned in the second power transmission hole, the second power transmission body is positioned in the third power transmission hole, and the butterfly-shaped introduced optical unit is positioned in the optical communication hole; the upper edge and the lower edge of the butterfly-shaped protective sleeve are positioned on the same cylindrical surface, the left edge of the butterfly-shaped protective sleeve is a part of the surface of the cylindrical body, the right edge of the butterfly-shaped protective sleeve is a part of the surface of the cylindrical body, the axes of the first reinforcing piece, the second reinforcing piece and the optical fiber are positioned in a first plane, the axes of the second power transmission hole, the third power transmission hole and the optical fiber are positioned in a second plane, the first plane is vertical to the second plane, and the second plane passes through the top points of the first tearing opening and the second tearing opening; the cylinder A which is equal to the distance between the outer edge of the first sheath and the inner edge of the first sheath passes through the axis of the second power transmission hole, and the cylinder A which is equal to the distance between the outer edge of the first sheath and the inner edge of the first sheath passes through the axis of the third power transmission hole.

A butterfly-shaped lead-in photoelectric composite cable is provided with a sheath unit, a first loose tube, a second loose tube and a butterfly-shaped lead-in optical unit; the sheath unit consists of a first sheath, a second sheath, a third sheath and a fourth sheath, wherein the first loose tube consists of a plurality of first optical conductors and a first insulating layer covering the first optical conductors, the second loose tube consists of a plurality of second optical conductors and a second insulating layer covering the second optical conductors, the butterfly-shaped leading-in light unit consists of optical fibers, a first reinforcing piece positioned on the upper side of the optical fibers, a second reinforcing piece positioned on the lower side of the optical fibers and a butterfly-shaped protective sleeve covering the optical fibers, the first reinforcing piece and the second reinforcing piece, a first tearing opening is formed in the edge of the butterfly-shaped protective sleeve on the left side of the optical fibers, and a second tearing opening is formed in the edge of the butterfly-shaped protective sleeve on the right side of the optical fibers; it is characterized in that the inner edge of the first sheath and the inner edge of the third sheath are on the same cylindrical surface, the outer edge of the first sheath and the outer edge of the third sheath are on the same cylindrical surface, the second sheath is in a circular cylinder structure, the fourth sheath is in a circular cylinder structure, a second power transmission hole is arranged in the second sheath, a third power transmission hole is arranged in the fourth sheath, one end of the first sheath is connected with the upper edge of the second sheath, the other end of the first sheath is connected with the upper edge of the fourth sheath, one end of the third sheath is connected with the upper edge of the second sheath, the other end of the third sheath is connected with the upper edge of the fourth sheath, the inner edge of the first sheath and the right edge of the second sheath, an optical communication hole is formed between the inner edge of the third sheath and the left edge of the fourth sheath, the first loose tube is positioned in the second power transmission hole, the first loose tube is positioned in the third power transmission hole, and the butterfly-shaped introduced optical unit is positioned in the optical communication hole; the upper edge and the lower edge of the butterfly-shaped protective sleeve are positioned on the same cylindrical surface, the left edge of the butterfly-shaped protective sleeve is a part of the surface of the cylindrical body, the right edge of the butterfly-shaped protective sleeve is a part of the surface of the cylindrical body, the axes of the first reinforcing piece, the second reinforcing piece and the optical fiber are positioned in a first plane, the axes of the second power transmission hole, the third power transmission hole and the optical fiber are positioned in a second plane, the first plane is vertical to the second plane, and the second plane passes through the top points of the first tearing opening and the second tearing opening; the cylinder A which is equal to the distance between the outer edge of the first sheath and the inner edge of the first sheath passes through the axis of the second power transmission hole, and the cylinder A which is equal to the distance between the outer edge of the first sheath and the inner edge of the first sheath passes through the axis of the third power transmission hole.

The butterfly-shaped introduced photoelectric composite cable is characterized in that the sheath unit is of an integrated structure.

The butterfly-shaped introduced photoelectric composite cable is characterized in that the sheath unit is made of polypropylene, polybutylene terephthalate, low-density polyethylene, medium-density polyethylene, high-density polyethylene, low-smoke halogen-free polyethylene, low-smoke low-halogen polyethylene, polyvinyl chloride, nylon, polytetrafluoroethylene, TPE or TPU.

The butterfly-shaped leading-in photoelectric composite cable is characterized in that the material of the first electric conductor is copper or aluminum or an alloy.

The butterfly-shaped introduced photoelectric composite cable is characterized in that the material of the second electric conductor is copper or aluminum or an alloy.

The butterfly-shaped introduced photoelectric composite cable is characterized in that the first insulating layer is made of polypropylene, polybutylene terephthalate, low-density polyethylene, medium-density polyethylene, high-density polyethylene, low-smoke halogen-free polyethylene, low-smoke low-halogen polyethylene, polyvinyl chloride, nylon, polytetrafluoroethylene, TPE or TPU.

The butterfly-shaped introduced photoelectric composite cable is characterized in that the second insulating layer is made of polypropylene, polybutylene terephthalate, low-density polyethylene, medium-density polyethylene, high-density polyethylene, low-smoke halogen-free polyethylene, low-smoke low-halogen polyethylene, polyvinyl chloride, nylon, polytetrafluoroethylene, TPE or TPU.

A butterfly-shaped lead-in photoelectric composite cable as described above, characterized in that said first optical conductor is an optical fiber of the type g.652 or g.653 or g.654 or g.655 or g.656 or g.657 or A1a or A1b or A1c or A1d or OM1 or OM2 or OM3 or OM 4.

A butterfly-shaped lead-in photoelectric composite cable as described above, characterized in that said second optical conductor is an optical fiber of the type g.652 or g.653 or g.654 or g.655 or g.656 or g.657 or A1a or A1b or A1c or A1d or OM1 or OM2 or OM3 or OM 4.

The butterfly-shaped introduced photoelectric composite cable is characterized in that the butterfly-shaped protective sleeve is made of polypropylene, polybutylene terephthalate, low-density polyethylene, medium-density polyethylene, high-density polyethylene, low-smoke halogen-free polyethylene, low-smoke low-halogen polyethylene, polyvinyl chloride, nylon, polytetrafluoroethylene, TPE or TPU.

The butterfly-shaped introduced photoelectric composite cable is characterized in that the first reinforcing part is a steel rod, a copper rod, an aluminum rod, an alloy rod or a glass fiber reinforced plastic rod.

The butterfly-shaped introduced photoelectric composite cable is characterized in that the second reinforcing part is a steel rod, a copper rod, an aluminum rod, an alloy rod or a glass fiber reinforced plastic rod.

The butterfly-shaped leading-in photoelectric composite cable is characterized in that the type of the optical fiber is G.652, G.653, G.654, G.655, G.656, G.657, A1a, A1b, A1c, A1d, OM1, OM2, OM3 or OM 4.

The butterfly-shaped introduced photoelectric composite cable is characterized in that the width of the butterfly-shaped protective sleeve is 2 +/-0.3 mm.

The butterfly-shaped introduced photoelectric composite cable is characterized in that the height of the butterfly-shaped protective sleeve is 3 +/-0.3 mm.

The invention has the following main beneficial effects: the cable laying device has the advantages of simple structure, easiness in manufacturing, low material consumption, low cost, excellent heat dissipation effect and capability of laying cables with two functions at one time, so that the construction efficiency is higher.

Drawings

Fig. 1 is a schematic perspective view of a section of anatomy according to example 1 of the present application.

Fig. 2 is an enlarged cross-sectional structure diagram of fig. 1.

Fig. 3 is a schematic cross-sectional view of fig. 1 after enlargement.

FIG. 4 is a schematic cross-sectional structure of example 2.

In order that those skilled in the art will more accurately and clearly understand and practice the present application, reference is now made to the following descriptions taken in conjunction with the accompanying drawings, in which: 11-first sheath, 12-second sheath, 13-third sheath, 14-fourth sheath, 21-first electrical conductor, 22-first insulating layer, 23-first optical conductor, 31-second electrical conductor, 32-second insulating layer, 33-second optical conductor, 41-butterfly sheath, 42-first stiffener, 43-second stiffener, 44-optical fiber, 45-first tear, 46-second tear.

Detailed Description

Examples 1

Referring to fig. 1 to 3, a butterfly-shaped lead-in photoelectric composite cable includes a sheath unit, a first power transmission body, a second power transmission body, and a butterfly-shaped lead-in optical unit; the sheath unit comprises a first sheath 11, a second sheath 12, a third sheath 13 and a fourth sheath 14, the first power transmission body comprises a first electric conductor 21 and a first insulating layer 22 covering the first electric conductor 21, the second power transmission body comprises a second electric conductor 31 and a second insulating layer 32 covering the second electric conductor 31, the butterfly-shaped leading-in light unit comprises an optical fiber 44, a first reinforcing member 42 positioned on the upper side of the optical fiber 44, a second reinforcing member 43 positioned on the lower side of the optical fiber 44 and a butterfly-shaped protective sheath 41 covering the optical fiber, the first reinforcing member and the second reinforcing member, a first tearing opening 45 is formed on the edge of the butterfly-shaped protective sheath on the left side of the optical fiber, and a second tearing opening 46 is formed on the edge of the butterfly-shaped protective sheath on the right side of the optical fiber; the method is characterized in that the inner edge of a first sheath 11 and the inner edge of a third sheath 13 are on the same cylindrical surface, the outer edge of the first sheath 11 and the outer edge of the third sheath 13 are on the same cylindrical surface, a second sheath 12 is of a circular cylinder structure, a fourth sheath 14 is of a circular cylinder structure, a second power transmission hole is arranged in the second sheath 12, a third power transmission hole is arranged in the fourth sheath 14, one end of the first sheath 11 is connected to the upper edge of the second sheath 12, the other end of the first sheath 11 is connected to the upper edge of the fourth sheath 14, one end of the third sheath 13 is connected to the upper edge of the second sheath 12, the other end of the third sheath 13 is connected to the upper edge of the fourth sheath 14, optical communication holes are formed among the inner edge of the first sheath 11, the right edge of the second sheath 12, the inner edge of the third sheath 13 and the left edge of the fourth sheath 14, the first power transmission body is positioned in the second power transmission hole, the second power transmission body is positioned in the, the butterfly-shaped introduction optical unit is positioned in the optical communication hole; the upper edge and the lower edge of the butterfly-shaped protective sleeve 41 are on the same cylindrical surface, the left edge of the butterfly-shaped protective sleeve 41 is a part of the surface of the cylindrical body, the right edge of the butterfly-shaped protective sleeve 41 is a part of the surface of the cylindrical body, the axes of the first reinforcing piece 42, the second reinforcing piece 43 and the optical fiber 44 are in a first plane, the axes of the second power transmission hole, the third power transmission hole and the optical fiber 44 are in a second plane, the first plane is vertical to the second plane, and the second plane passes through the top points of the first tearing opening 45 and the second tearing opening 46; the cylinder A with the same distance with the outer edge of the first sheath 11 and the same distance with the inner edge of the first sheath 11 passes through the axis of the second power transmission hole, and the cylinder A with the same distance with the outer edge of the first sheath 11 and the same distance with the inner edge of the first sheath 11 passes through the axis of the third power transmission hole.

EXAMPLES example 2

Referring to fig. 4 and fig. 1 to 3, a butterfly-shaped lead-in optical electrical composite cable includes a sheath unit, a first loose tube, a second loose tube and a butterfly-shaped lead-in optical unit; the sheath unit comprises a first sheath 11, a second sheath 12, a third sheath 13 and a fourth sheath 14, the first loose tube comprises a plurality of first optical conductors 23 and a first insulating layer 22 covering the first optical conductors 23, the second loose tube comprises a plurality of second optical conductors 33 and a second insulating layer 32 covering the second optical conductors 33, the butterfly-shaped introduction light unit comprises an optical fiber 44, a first reinforcing member 42 positioned on the upper side of the optical fiber 44, a second reinforcing member 43 positioned on the lower side of the optical fiber 44 and a butterfly-shaped protective sleeve 41 covering the optical fiber, the first reinforcing member and the second reinforcing member, a first tearing opening 45 is formed in the edge of the butterfly-shaped protective sleeve on the left side of the optical fiber, and a second tearing opening 46 is formed in the edge of the butterfly-shaped protective sleeve on the right side of the optical fiber; the light transmission cable is characterized in that the inner edge of a first sheath 11 and the inner edge of a third sheath 13 are on the same cylindrical surface, the outer edge of the first sheath 11 and the outer edge of the third sheath 13 are on the same cylindrical surface, a second sheath 12 is of a circular cylinder structure, a fourth sheath 14 is of a circular cylinder structure, a second power transmission hole is formed in the second sheath 12, a third power transmission hole is formed in the fourth sheath 14, one end of the first sheath 11 is connected to the upper edge of the second sheath 12, the other end of the first sheath 11 is connected to the upper edge of the fourth sheath 14, one end of the third sheath 13 is connected to the upper edge of the second sheath 12, the other end of the third sheath 13 is connected to the upper edge of the fourth sheath 14, light communication holes are formed among the inner edge of the first sheath 11, the right edge of the second sheath 12, the inner edge of the third sheath 13 and the left edge of the fourth sheath 14, a first loose tube is positioned in the second power transmission hole, the first loose tube is positioned in the, the butterfly-shaped introduction optical unit is positioned in the optical communication hole; the upper edge and the lower edge of the butterfly-shaped protective sleeve 41 are on the same cylindrical surface, the left edge of the butterfly-shaped protective sleeve 41 is a part of the surface of the cylindrical body, the right edge of the butterfly-shaped protective sleeve 41 is a part of the surface of the cylindrical body, the axes of the first reinforcing piece 42, the second reinforcing piece 43 and the optical fiber 44 are in a first plane, the axes of the second power transmission hole, the third power transmission hole and the optical fiber 44 are in a second plane, the first plane is vertical to the second plane, and the second plane passes through the top points of the first tearing opening 45 and the second tearing opening 46; the cylinder A with the same distance with the outer edge of the first sheath 11 and the same distance with the inner edge of the first sheath 11 passes through the axis of the second power transmission hole, and the cylinder A with the same distance with the outer edge of the first sheath 11 and the same distance with the inner edge of the first sheath 11 passes through the axis of the third power transmission hole.

The butterfly-shaped introduced photoelectric composite cable is characterized in that the cross section of the butterfly-shaped protective sleeve is in an axe shape, and is vertically and horizontally symmetrical.

The device can be used indoors or outdoors.

The cross section of the appearance of the utility model is similar to that of spectacles.

In this application, the butterfly protective sheath is located the optical communication downthehole and respectively with first sheath, second sheath, third sheath, fourth sheath edge between fill have the viscose, so the butterfly introduces optical unit stable in structure, reliable.

In this application, the butterfly protective sheath is located the optical communication downthehole and laminates with first sheath, second sheath, third sheath, fourth sheath edge respectively, so the butterfly introduces into optical unit stable in structure, reliable.

In embodiment example 1 of the present application, the first power transmission element and the second power transmission element have better heat dissipation effects because the first power transmission element is partially located outside the outer edge of the first jacket and the second power transmission element is partially located outside the outer edge of the second jacket. In the embodiment, one cable can enter the house, the functions of power supply and optical signal access are realized simultaneously, and the process of electric power and optical fiber FTTH is promoted very conveniently.

In the embodiment example 1 of the present application, a part of the first loose tube is located outside the outer edge of the first sheath, a part of the second loose tube is located outside the outer edge of the second sheath, and a plurality of optical conductors are provided in the loose tube, so that the density of the communication optical fiber is higher, and the communication capability is stronger.

In this application, the sheath structure of integration, easily the shaping, adopt the extrusion molding to realize, and simple structure, shaping are fast.

The above-mentioned embodiments are merely preferred technical solutions of the present invention, and should not be construed as limiting the present invention. The protection scope of the present invention is defined by the claims, and includes equivalents of technical features of the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the invention.

Claims

1. A butterfly-shaped lead-in photoelectric composite cable is provided with a sheath unit, a first power transmission body, a second power transmission body and a butterfly-shaped lead-in optical unit; the sheath unit consists of a first sheath, a second sheath, a third sheath and a fourth sheath, wherein the first power transmission body consists of a first conductor and a first insulating layer for coating the first conductor, the second power transmission body consists of a second conductor and a second insulating layer for coating the second conductor, the butterfly-shaped leading-in light unit consists of an optical fiber, a first reinforcing piece positioned on the upper side of the optical fiber, a second reinforcing piece positioned on the lower side of the optical fiber and a butterfly-shaped protective sleeve for coating the optical fiber, the first reinforcing piece and the second reinforcing piece, a first tearing opening is formed in the edge of the butterfly-shaped protective sleeve on the left side of the optical fiber, and a second tearing opening is formed in the edge of the butterfly-shaped protective sleeve on the right side of the optical fiber; it is characterized in that the inner edge of the first sheath and the inner edge of the third sheath are on the same cylindrical surface, the outer edge of the first sheath and the outer edge of the third sheath are on the same cylindrical surface, the second sheath is in a circular cylinder structure, the fourth sheath is in a circular cylinder structure, a second power transmission hole is arranged in the second sheath, a third power transmission hole is arranged in the fourth sheath, one end of the first sheath is connected with the upper edge of the second sheath, the other end of the first sheath is connected with the upper edge of the fourth sheath, one end of the third sheath is connected with the upper edge of the second sheath, the other end of the third sheath is connected with the upper edge of the fourth sheath, the inner edge of the first sheath and the right edge of the second sheath, an optical communication hole is formed between the inner edge of the third sheath and the left edge of the fourth sheath, the first power transmission body is positioned in the second power transmission hole, the second power transmission body is positioned in the third power transmission hole, and the butterfly-shaped introduced optical unit is positioned in the optical communication hole; the upper edge and the lower edge of the butterfly-shaped protective sleeve are positioned on the same cylindrical surface, the left edge of the butterfly-shaped protective sleeve is a part of the surface of the cylindrical body, the right edge of the butterfly-shaped protective sleeve is a part of the surface of the cylindrical body, the axes of the first reinforcing piece, the second reinforcing piece and the optical fiber are positioned in a first plane, the axes of the second power transmission hole, the third power transmission hole and the optical fiber are positioned in a second plane, the first plane is vertical to the second plane, and the second plane passes through the top points of the first tearing opening and the second tearing opening; the cylinder A which is equal to the distance between the outer edge of the first sheath and the inner edge of the first sheath passes through the axis of the second power transmission hole, and the cylinder A which is equal to the distance between the outer edge of the first sheath and the inner edge of the first sheath passes through the axis of the third power transmission hole.

2. A butterfly-shaped lead-in photoelectric composite cable according to claim 1, wherein said sheath unit is of a unitary structure.

3. A butterfly-shaped lead-in photoelectric composite cable according to claim 1, wherein the material of the sheath unit is polypropylene or polybutylene terephthalate or low density polyethylene or medium density polyethylene or high density polyethylene or low smoke zero halogen polyethylene or low smoke low halogen polyethylene or polyvinyl chloride or nylon or polytetrafluoroethylene or TPE or TPU; the first insulating layer is made of polypropylene or polybutylene terephthalate or low-density polyethylene or medium-density polyethylene or high-density polyethylene or low-smoke halogen-free polyethylene or low-smoke low-halogen polyethylene or polyvinyl chloride or nylon or polytetrafluoroethylene or TPE or TPU; the second insulating layer is made of polypropylene or polybutylene terephthalate or low-density polyethylene or medium-density polyethylene or high-density polyethylene or low-smoke halogen-free polyethylene or low-smoke low-halogen polyethylene or polyvinyl chloride or nylon or polytetrafluoroethylene or TPE or TPU; the butterfly-shaped protective sleeve is made of polypropylene, polybutylene terephthalate, low-density polyethylene, medium-density polyethylene, high-density polyethylene, low-smoke halogen-free polyethylene, low-smoke low-halogen polyethylene, polyvinyl chloride, nylon, polytetrafluoroethylene, TPE or TPU.

4. A butterfly lead-in photoelectric composite cable according to claim 1, 2 or 3, characterized in that the material of the first electrical conductor is copper or aluminum or an alloy; the material of the second electrical conductor is copper or aluminum or an alloy.

5. A butterfly-shaped drop photoelectric composite cable according to claim 1, claim 2 or claim 3, wherein the first reinforcing member is a steel rod or a copper rod or an aluminum rod or an alloy rod or a glass fiber reinforced plastic rod; the second reinforcement is a steel or copper or aluminium or alloy or glass fibre reinforced plastic rod.

6. A butterfly-shaped drop photoelectric composite cable according to claim 1, claim 2 or claim 3, wherein the type of said optical fibers is g.652, g.653, g.654, g.655, g.656, g.657, A1a, A1b, A1c, A1d, OM1, OM2, OM3, or OM 4.

7. A butterfly-shaped lead-in photoelectric composite cable is provided with a sheath unit, a first loose tube, a second loose tube and a butterfly-shaped lead-in optical unit; the sheath unit consists of a first sheath, a second sheath, a third sheath and a fourth sheath, wherein the first loose tube consists of a plurality of first optical conductors and a first insulating layer covering the first optical conductors, the second loose tube consists of a plurality of second optical conductors and a second insulating layer covering the second optical conductors, the butterfly-shaped leading-in light unit consists of optical fibers, a first reinforcing piece positioned on the upper side of the optical fibers, a second reinforcing piece positioned on the lower side of the optical fibers and a butterfly-shaped protective sleeve covering the optical fibers, the first reinforcing piece and the second reinforcing piece, a first tearing opening is formed in the edge of the butterfly-shaped protective sleeve on the left side of the optical fibers, and a second tearing opening is formed in the edge of the butterfly-shaped protective sleeve on the right side of the optical fibers; it is characterized in that the inner edge of the first sheath and the inner edge of the third sheath are on the same cylindrical surface, the outer edge of the first sheath and the outer edge of the third sheath are on the same cylindrical surface, the second sheath is in a circular cylinder structure, the fourth sheath is in a circular cylinder structure, a second power transmission hole is arranged in the second sheath, a third power transmission hole is arranged in the fourth sheath, one end of the first sheath is connected with the upper edge of the second sheath, the other end of the first sheath is connected with the upper edge of the fourth sheath, one end of the third sheath is connected with the upper edge of the second sheath, the other end of the third sheath is connected with the upper edge of the fourth sheath, the inner edge of the first sheath and the right edge of the second sheath, an optical communication hole is formed between the inner edge of the third sheath and the left edge of the fourth sheath, the first loose tube is positioned in the second power transmission hole, the first loose tube is positioned in the third power transmission hole, and the butterfly-shaped introduced optical unit is positioned in the optical communication hole; the upper edge and the lower edge of the butterfly-shaped protective sleeve are positioned on the same cylindrical surface, the left edge of the butterfly-shaped protective sleeve is a part of the surface of the cylindrical body, the right edge of the butterfly-shaped protective sleeve is a part of the surface of the cylindrical body, the axes of the first reinforcing piece, the second reinforcing piece and the optical fiber are positioned in a first plane, the axes of the second power transmission hole, the third power transmission hole and the optical fiber are positioned in a second plane, the first plane is vertical to the second plane, and the second plane passes through the top points of the first tearing opening and the second tearing opening; the cylinder A which is equal to the distance between the outer edge of the first sheath and the inner edge of the first sheath passes through the axis of the second power transmission hole, and the cylinder A which is equal to the distance between the outer edge of the first sheath and the inner edge of the first sheath passes through the axis of the third power transmission hole.

8. A butterfly-shaped lead-in photoelectric composite cable according to claim 7, wherein said first optical conductors are optical fibers of the type g.652 or g.653 or g.654 or g.655 or g.656 or g.657 or A1a or A1b or A1c or A1d or OM1 or OM2 or OM3 or OM 4; the second optical fiber is an optical fiber, and the model of the optical fiber is G.652, G.653, G.654, G.655, G.656, G.657, A1a, A1b, A1c, A1d, OM1, OM2, OM3 or OM 4.

9. A butterfly-shaped drop photoelectric composite cable according to claim 7 or claim 8, wherein the width of the butterfly-shaped protective sheath is 2 ± 0.3 mm.

10. A butterfly-shaped drop photoelectric composite cable according to claim 7 or claim 8, wherein the butterfly-shaped protective sheath has a height of 3 ± 0.3 mm.