Optical cable with special-shaped loose tube

Abstract

The invention belongs to the technical field of photoelectric composite cables, and discloses an optical cable with a special-shaped loose tube, the optical cable is provided with an outer protective layer and a cable core, the cable core is composed of two optical fiber ribbon sleeves, two butterfly-shaped units and a reinforcing unit, the two optical fiber ribbon sleeves, the two butterfly-shaped units and the reinforcing unit are combined to form a hexagon, and the special-shaped loose tube is arranged in the outer protective layer. The optical fiber ribbon sleeve is in a parallelogram shape, at least one optical fiber ribbon is arranged in the optical fiber ribbon sleeve, the butterfly-shaped unit is composed of a butterfly-shaped unit main body, two reinforcing pieces and at least one optical fiber, the butterfly-shaped unit main body is similar to a rhombus, and at least one electric unit is arranged in the reinforcing unit; the cable has the advantages of being simple in structure, wide in application range, flexible in laying mode, stable in structure and the like.

Description

Technical Field

[0001] The invention belongs to the technical field of optical cables, and in particular relates to an optical cable with a special-shaped loose tube. Background Art

[0002] With the gradual development of 5G communications, a large number of optoelectronic hybrid cables suitable for 5G networks are needed. Most of the current optoelectronic hybrid cables are not based on 5G use. Therefore, they have poor adaptability when used in base station connections in 5G communication networks, or multiple optoelectronic hybrid cables need to be used.

[0003] In the prior art, CN216411671U discloses a non-metallic flame-retardant skeleton optical cable for 5G communication, including a skeleton, a central reinforcing core is arranged at the axis of the skeleton, a plurality of skeleton grooves are arranged in a circumferential array on the outer side of the skeleton, an optical fiber ribbon is arranged in each skeleton groove, and a nylon sheath is arranged on the outer surface of each optical fiber ribbon; an arc-shaped embedded portion is formed on the outer side of the skeleton and located between two adjacent skeleton grooves, a waterproof hot-melt adhesive layer is arranged on the outer surface of the skeleton, and a first reinforcing rib layer is arranged in the waterproof hot-melt adhesive layer and located at the position of the arc-shaped embedded portion; a flame-retardant cable jelly layer is arranged on the outer surface of the waterproof hot-melt adhesive layer, a plastic-coated aluminum tape layer is arranged on the outer surface of the flame-retardant cable jelly layer, a buffer layer is arranged on the outer surface of the plastic-coated aluminum tape layer, a semiconductor polyethylene sheath layer is arranged on the outer surface of the buffer layer, and a plurality of second reinforcing rib layers are arranged in a circumferential array in the semiconductor polyethylene sheath layer.

[0004] The above-mentioned prior art has the following drawbacks: the internal units cannot be wired independently, the application scenario is single, and electrical signals cannot be transmitted. Summary of the invention

[0005] In order to solve the above problems, the purpose of the present invention is to disclose an optical cable with a special-shaped loose tube, which is achieved by adopting the following technical solutions.

[0006] An optical cable with a special-shaped loose tube has an outer sheath and a cable core, wherein the cable core is composed of two optical fiber ribbon tubes, two butterfly-shaped units and a reinforcement unit, and the two optical fiber ribbon tubes, two butterfly-shaped units and one reinforcement unit are combined into a hexagon; The two optical fiber ribbon sleeves are respectively attached to the upper and lower sides of the reinforcing unit, the two butterfly units are respectively attached to the left and right sides of the reinforcing unit, and the butterfly unit is attached to the two optical fiber ribbon sleeves at the same time; The optical fiber ribbon sleeve is in the shape of a parallelogram, and at least one optical fiber ribbon is arranged in the optical fiber ribbon sleeve. The butterfly unit is composed of a butterfly unit body, two reinforcement members and at least one optical fiber. The butterfly unit body is a solid body surrounded by four reinforcement unit sides and two butterfly unit connecting edges. The four reinforcement unit sides are respectively located on the four sides of the rhombus. The upper ends of the two reinforcement unit sides on the upper side of the short axis of the rhombus are connected through the butterfly unit connecting edge, and the lower ends of the two reinforcement unit sides on the lower side of the short axis of the rhombus are connected through the butterfly unit connecting edge. The two butterfly unit connecting edges are parallel to the short axis of the rhombus. Two reinforcement members and one optical fiber are located in the butterfly unit body, the optical fiber is located between the two reinforcement members, and the two reinforcement members are located on both sides of the short axis of the rhombus. At least one electrical unit is arranged in the reinforcement unit.

[0007] The optical cable with a special-shaped loose tube described above, the reinforcement unit is composed of a reinforcement unit body, the reinforcement unit body has an upper side of the reinforcement unit, a long side on the right side of the reinforcement unit, a short side on the right side of the reinforcement unit, a lower side of the reinforcement unit, a short side on the left side of the reinforcement unit and a long side on the left side of the reinforcement unit, the upper side of the reinforcement unit is parallel to the lower side of the reinforcement unit and is horizontally arranged, the long side on the right side of the reinforcement unit is parallel to the long side on the left side of the reinforcement unit, the short side on the right side of the reinforcement unit is parallel to the short side on the left side of the reinforcement unit, the two ends of the upper side of the reinforcement unit are respectively connected to the upper ends of the long side on the right side of the reinforcement unit and the short side on the left side of the reinforcement unit, and the two ends of the lower side of the reinforcement unit are respectively connected to the short side on the right side of the reinforcement unit and the short side on the left side of the reinforcement unit. The lower ends of the long sides of the reinforcing unit are connected, the lower end of the short side of the left side of the reinforcing unit is connected to the upper end of the long side of the left side of the reinforcing unit, the short side of the left side of the reinforcing unit and the long side of the left side of the reinforcing unit form an angle recessed toward the middle of the main body of the reinforcing unit, the lower end of the long side of the right side of the reinforcing unit is connected to the upper end of the short side of the right side of the reinforcing unit, the long side of the right side of the reinforcing unit and the short side of the right side of the reinforcing unit form an angle recessed toward the middle of the main body of the reinforcing unit, a first wire accommodating cavity is provided in the angle between the upper side of the reinforcing unit and the short side of the left side of the reinforcing unit, a second wire accommodating cavity is provided in the angle between the short side of the right side of the reinforcing unit and the lower side of the reinforcing unit, and the electrical unit is located in the first wire accommodating cavity and the second wire accommodating cavity; The long sides of the two optical fiber ribbon sleeves are respectively fitted with the upper side and the lower side of the reinforcing unit of the reinforcing unit, and the two butterfly units are respectively located on the left and right sides of the reinforcing unit. The butterfly unit connection edge of the lower side of the butterfly unit on the left is fitted with the upper side wall of the optical fiber ribbon sleeve on the lower side, and the sum of the length of the butterfly unit connection edge of the lower side of the butterfly unit on the left and the length of the lower side of the reinforcing unit is equal to the length of the upper side wall of the optical fiber ribbon sleeve on the lower side; The upper butterfly unit connection edge of the butterfly unit on the right side is in contact with the lower side wall of the upper optical fiber ribbon sleeve, and the sum of the length of the upper butterfly unit connection edge of the butterfly unit on the right side and the length of the upper side edge of the reinforcing unit is equal to the length of the lower side wall of the upper optical fiber ribbon sleeve; The reinforcing unit side of the lower right side of the butterfly unit on the left is in contact with the long side of the left side of the reinforcing unit and is equal in length, the reinforcing unit side of the upper right side of the butterfly unit on the left is in contact with the short side of the left side of the reinforcing unit, and the reinforcing unit side of the upper right side of the butterfly unit on the left is in contact with the left side wall of the optical fiber ribbon sleeve on the upper side, and the sum of the lengths of the short side of the left side of the reinforcing unit and the left side wall of the optical fiber ribbon sleeve on the upper side is equal to the length of the reinforcing unit side; The reinforcing unit side on the upper left side of the butterfly unit on the right is in contact with the long side of the right side of the reinforcing unit and are of equal length, the reinforcing unit side on the lower left side of the butterfly unit on the right is in contact with the long side of the right side of the reinforcing unit, and the reinforcing unit side on the lower left side of the butterfly unit on the right is in contact with the right side wall of the optical fiber ribbon sleeve on the lower side, and the sum of the lengths of the long side of the right side of the reinforcing unit and the right side wall of the optical fiber ribbon sleeve on the lower side is equal to the length of the reinforcing unit side.

[0008] In the optical cable with a special-shaped loose tube described above, a fourth wire accommodating cavity is provided in the angle between the upper side of the reinforcement unit and the right long side of the reinforcement unit, a third wire accommodating cavity is provided in the angle between the left long side of the reinforcement unit and the lower side of the reinforcement unit, and at least one electrical unit is provided in the fourth wire accommodating cavity and the third wire accommodating cavity.

[0009] In the above-mentioned optical cable with a special-shaped loose tube, an elliptical optical fiber cavity is provided between two strength members, at least one optical fiber is located in the optical fiber cavity, the major axis of the elliptical optical fiber cavity and the minor axis of the rhombus are located on the same straight line, and the common tangent line between the strength member and the optical fiber cavity is parallel to the side of the corresponding strength unit.

[0010] In the optical cable with a special-shaped loose tube described above, a tearing opening is respectively provided at both ends of the rhombus-shaped short axis.

[0011] The optical cable with a special-shaped loose tube described above has an outer sheath made of polyethylene.

[0012] In the above-mentioned optical cable with a special-shaped loose tube, the material of the optical fiber ribbon tube is modified polypropylene or polybutylene terephthalate.

[0013] The optical fiber ribbon of the optical fiber cable with a special-shaped loose tube is formed by combining multiple optical fibers through resin.

[0014] In the above-mentioned optical cable with a special-shaped loose tube, the material of the butterfly-shaped unit body is flame-retardant polyolefin.

[0015] In the above-mentioned optical cable with a special-shaped loose tube, the reinforcement member is a phosphating steel wire or a glass fiber reinforced plastic rod.

[0016] The optical fiber of the optical cable with a special-shaped loose tube described above has a model of G.657A or G.657B.

[0017] In the above-mentioned optical cable with a special-shaped loose tube, the material of the reinforcement unit body is cross-linked polyethylene.

[0018] In the optical cable with a special-shaped loose tube as described above, the electrical unit is composed of a conductor and an insulating layer extruded outside the conductor.

[0019] In the above-mentioned optical cable with a special-shaped loose tube, adjacent optical fiber ribbon tubes, butterfly-shaped units and reinforcement units are bonded together by glue.

[0020] The present invention has the following beneficial effects: 1. This application can transmit both optical signals and electrical signals, and has both optical fibers and optical fiber ribbons, as well as electrical signal transmission lines. It can be laid both indoors and outdoors, has a wide range of applications, and has flexible laying methods. It is very suitable for communication connections within 5G communication base stations.

[0021] 2. In the present application, adjacent optical fiber ribbon sleeves, butterfly units and reinforcement units are in surface contact. Compared with traditional circular sleeves, the mutual pressure is smaller, the structure is not easily damaged, and the pressure resistance is better.

[0022] 3. The butterfly unit adopts a diamond-like structure. The main body of the butterfly unit on both sides of the reinforcement is narrower, and less material is used, while the left and right sides of the optical fiber are wider, which has a better protection effect on the optical fiber, or can place more optical fibers, increasing the fiber core density in the butterfly unit.

[0023] 4. The adjacent first wire accommodating cavity, the second wire accommodating cavity, the third wire accommodating cavity or the fourth wire accommodating cavity are far apart, and the heat generated by the internal electrical units when working has little effect on each other.

[0024] 5. The first wire accommodating cavity, the second wire accommodating cavity, the third wire accommodating cavity and the fourth wire accommodating cavity are located at the four corners of the reinforcement unit, which has little impact on the main structure of the reinforcement unit and has little impact on the mechanical properties of the reinforcement unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of a section of Example 1 of the present invention.

[0026] Figure 2 It is a front view of embodiment 1 of the present invention.

[0027] Figure 3 It is a front view of the reinforcement unit of Example 1 of the present invention.

[0028] Figure 4 It is a front view of the butterfly unit of Example 1 of the present invention.

[0029] Figure 5It is a schematic diagram of the three-dimensional structure of a section of Example 2 of the present invention.

[0030] Figure 6 It is a front view of embodiment 2 of the present invention.

[0031] Figure 7 It is a front view of the reinforcing electrical unit of Example 2 of the present invention.

[0032] Figure 8 It is a front view of the butterfly unit of embodiment 3 of the present invention.

[0033] In the figure: 1. outer sheath, 2. optical fiber ribbon sleeve, 3. optical fiber ribbon, 4. butterfly unit, 41. butterfly unit connecting edge, 42. butterfly unit body, 43. reinforcement, 44. reinforcement unit side, 45. optical fiber, 46. tear, 47. optical fiber cavity, 5. reinforcement unit, 51. reinforcement unit body, 52. first wire accommodating cavity, 53. reinforcement unit upper side, 54. reinforcement unit right long side, 55. reinforcement unit right short side, 56. second wire accommodating cavity, 57. reinforcement unit lower side, 58. reinforcement unit left short side, 59. reinforcement unit left long side, 510. third wire accommodating cavity, 511. fourth wire accommodating cavity, 6. electrical unit. DETAILED DESCRIPTION

[0034] Example 1: Figures 1 to 4 , an optical cable with a special-shaped loose tube, comprising an outer sheath 1 and a cable core, wherein the cable core is composed of two optical fiber ribbon tubes 2, two butterfly-shaped units 4 and a reinforcing unit 5, and the two optical fiber ribbon tubes 2, the two butterfly-shaped units 4 and the reinforcing unit 5 are combined into a hexagon; The optical fiber ribbon sleeve 2 is in the shape of a parallelogram, and an optical fiber ribbon is arranged in the optical fiber ribbon sleeve 2. The butterfly unit 4 is composed of a butterfly unit body 42, two reinforcement members 43 and an optical fiber 46. The butterfly unit body 42 is a solid body surrounded by four reinforcement unit side edges 44 and two butterfly unit connecting edges 41. The four reinforcement unit side edges 44 are respectively located on the four sides of the rhombus. The upper ends of the two reinforcement unit side edges 44 on the upper side of the short axis of the rhombus are connected through the butterfly unit connecting edge 41, and the lower ends of the two reinforcement unit side edges 44 on the lower side of the short axis of the rhombus are connected through the butterfly unit connecting edge 41. The two butterfly unit connecting edges 41 are parallel to the short axis of the rhombus. A tearing hole 46 is respectively arranged at both ends of the short axis of the rhombus. The two reinforcement members 43 and an optical fiber 46 are located in the butterfly unit body 42. The optical fiber 46 is located between the two reinforcement members 43, and the two reinforcement members 43 are located on both sides of the short axis of the rhombus. The reinforcing unit 5 is composed of a reinforcing unit body 51, which has an upper side 53 of the reinforcing unit, a long side 54 on the right side of the reinforcing unit, a short side 55 on the right side of the reinforcing unit, a lower side 57 of the reinforcing unit, a short side 58 on the left side of the reinforcing unit, and a long side 59 on the left side of the reinforcing unit. The upper side 53 of the reinforcing unit is parallel to the lower side 57 of the reinforcing unit and is horizontally arranged. The long side 54 on the right side of the reinforcing unit is parallel to the long side 59 on the left side of the reinforcing unit. The short side 55 on the right side of the reinforcing unit is parallel to the short side 58 on the left side of the reinforcing unit. The two ends of the upper side 53 of the reinforcing unit are respectively connected to the upper ends of the long side 54 on the right side of the reinforcing unit and the short side 58 on the left side of the reinforcing unit. The two ends of the lower side 57 of the reinforcing unit are respectively connected to the lower ends of the short side 55 on the right side of the reinforcing unit and the long side 59 on the left side of the reinforcing unit. The lower end of the left short side 58 of the reinforcing unit is connected to the upper end of the left long side 59 of the reinforcing unit, and the left short side 58 of the reinforcing unit and the left long side 59 of the reinforcing unit form an angle recessed toward the middle of the reinforcing unit body 51. The lower end of the right long side 54 of the reinforcing unit is connected to the upper end of the right short side 55 of the reinforcing unit, and the right long side 54 of the reinforcing unit and the right short side 55 of the reinforcing unit form an angle recessed toward the middle of the reinforcing unit body 51. A first wire accommodating cavity 52 is provided in the angle between the upper side 53 of the reinforcing unit and the left short side 58 of the reinforcing unit, and a second wire accommodating cavity 56 is provided in the angle between the right short side 55 of the reinforcing unit and the lower side 57 of the reinforcing unit. At least one electrical unit 6 is provided in the first wire accommodating cavity 52 and the second wire accommodating cavity 56. The long sides of the two optical fiber ribbon sleeves 2 are respectively fitted with the reinforcing unit upper side 53 and the reinforcing unit lower side 57 of the reinforcing unit 5, and the two butterfly units 4 are respectively located on the left and right sides of the reinforcing unit 5. The butterfly unit connecting edge 41 on the lower side of the butterfly unit 4 on the left is fitted with the upper side wall of the optical fiber ribbon sleeve 2 on the lower side, and the sum of the length of the butterfly unit connecting edge 41 on the lower side of the butterfly unit 4 on the left and the length of the reinforcing unit lower side 57 is equal to the length of the upper side wall of the optical fiber ribbon sleeve 2 on the lower side; The butterfly unit connecting edge 41 on the upper side of the butterfly unit 4 on the right side is fitted with the lower side wall of the optical fiber ribbon sleeve 2 on the upper side, and the sum of the length of the butterfly unit connecting edge 41 on the upper side of the butterfly unit 4 on the right side and the length of the upper side edge 53 of the reinforcing unit is equal to the length of the lower side wall of the optical fiber ribbon sleeve 2 on the upper side; The reinforcing unit side edge 44 on the lower right side of the butterfly unit 4 on the left is fitted with the long side 59 on the left side of the reinforcing unit and the lengths are equal, the reinforcing unit side edge 44 on the upper right side of the butterfly unit 4 on the left is fitted with the short side 58 on the left side of the reinforcing unit, and the reinforcing unit side edge 44 on the upper right side of the butterfly unit 4 on the left is fitted with the left side wall of the optical fiber ribbon sleeve 2 on the upper side, and the sum of the lengths of the short side 58 on the left side of the reinforcing unit and the left side wall of the optical fiber ribbon sleeve 2 on the upper side is equal to the length of the reinforcing unit side edge 44; The reinforcing unit side 44 on the upper left side of the butterfly unit 4 on the right is in contact with the long side 54 on the right side of the reinforcing unit and are of equal length, the reinforcing unit side 44 on the lower left side of the butterfly unit 4 on the right is in contact with the long side 54 on the right side of the reinforcing unit, and the reinforcing unit side 44 on the lower left side of the butterfly unit 4 on the right is in contact with the right side wall of the optical fiber ribbon sleeve 2 on the lower side, and the sum of the lengths of the long side 54 on the right side of the reinforcing unit and the right side wall of the optical fiber ribbon sleeve 2 on the lower side is equal to the length of the reinforcing unit side 44.

[0035] Example 2: Figures 5 to 7 , and refer to Figure 4 This embodiment is basically the same as the first embodiment, except that: a fourth wire accommodating cavity 511 is provided in the angle between the upper side 53 of the reinforcing unit and the right long side 54 of the reinforcing unit, a third wire accommodating cavity 510 is provided in the angle between the left long side 59 of the reinforcing unit and the lower side 57 of the reinforcing unit, and at least one electrical unit 6 is provided in the fourth wire accommodating cavity 511 and the third wire accommodating cavity 510.

[0036] Example 3: Figure 8 , and refer to Figures 1 to 3 This embodiment is basically the same as the embodiment 1, except that: an elliptical fiber cavity 47 is provided between the two reinforcement members 43, a plurality of optical fibers 45 are provided in the fiber cavity 47, the major axis of the elliptical fiber cavity 47 and the minor axis of the rhombus are located on the same straight line, and the common tangent line between the reinforcement member 43 and the fiber cavity 47 is parallel to the corresponding reinforcement unit side 44.

[0037] In the above-mentioned optical cable with a special-shaped loose tube, the material of the outer sheath 1 is polyethylene.

[0038] In the above-mentioned optical cable with a special-shaped loose tube, the material of the optical fiber ribbon tube 2 is modified polypropylene or polybutylene terephthalate.

[0039] In the optical cable with a special-shaped loose tube described above, the optical fiber ribbon 3 is formed by combining a plurality of optical fibers 45 with resin.

[0040] In the above-mentioned optical cable with a special-shaped loose tube, the material of the butterfly-shaped unit body 42 is flame-retardant polyolefin.

[0041] In the above-mentioned optical cable with a special-shaped loose tube, the reinforcement member 43 is a phosphating steel wire or a glass fiber reinforced plastic rod.

[0042] In the above-mentioned optical cable with a special-shaped loose tube, the type of the optical fiber 45 is G.657A or G.657B.

[0043] In the above-mentioned optical cable with a special-shaped loose tube, the material of the reinforcement unit body 51 is cross-linked polyethylene.

[0044] In the optical cable with a special-shaped loose tube described above, the electrical unit 6 is composed of a conductor and an insulating layer extruded outside the conductor.

[0045] In the present application, adjacent optical fiber ribbon sleeves 2, butterfly units 4 and reinforcement units 5 are bonded together by glue.

[0046] The present invention has the following beneficial effects: 1. This application can transmit both optical signals and electrical signals, and has both optical fibers and optical fiber ribbons, as well as electrical signal transmission lines. It can be laid both indoors and outdoors, has a wide range of applications, and has flexible laying methods. It is very suitable for communication connections within 5G communication base stations.

[0047] 2. In the present application, adjacent optical fiber ribbon sleeves 2, butterfly units 4 and reinforcement units 5 are in surface contact. Compared with traditional circular sleeves, the mutual pressure is smaller, the structure is not easily damaged, and the pressure resistance is better.

[0048] 3. The butterfly unit 4 adopts a diamond-like structure. The butterfly unit body 42 on both sides of the reinforcement 43 is narrower, and less material is used, while the left and right sides of the optical fiber 45 are wider, which has a better protection effect on the optical fiber 45, or can place more optical fibers 45, increasing the core density in the butterfly unit 4.

[0049] 4. The adjacent first wire accommodating cavity 52, second wire accommodating cavity 56, third wire accommodating cavity 510 or fourth wire accommodating cavity 511 are far apart, and the heat generated by the internal electrical units 6 during operation has little effect on each other.

[0050] 5. The first wire accommodating cavity 52 , the second wire accommodating cavity 56 , the third wire accommodating cavity 510 and the fourth wire accommodating cavity 511 are located at the four corners of the reinforcing unit 5 , which has little impact on the main structure of the reinforcing unit 5 and has little impact on the mechanical properties of the reinforcing unit 5 .

[0051] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limiting the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including the equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. An optical cable with a special-shaped loose tube, comprising an outer sheath (1) and a cable core, characterized in that: The cable core is composed of two optical fiber ribbon sleeves (2), two butterfly units (4) and a reinforcement unit (5); the two optical fiber ribbon sleeves (2), the two butterfly units (4) and the reinforcement unit (5) are combined into a hexagon; the two optical fiber ribbon sleeves (2) are respectively bonded to the upper and lower sides of the reinforcement unit (5); the two butterfly units (4) are respectively bonded to the left and right sides of the reinforcement unit (5); the butterfly unit (4) is bonded to the two optical fiber ribbon sleeves (2) at the same time; the optical fiber ribbon sleeve (2) is in a parallelogram shape; at least one optical fiber ribbon is arranged in the optical fiber ribbon sleeve (2); the butterfly unit (4) is composed of a butterfly unit body (42), two reinforcement members (43) and at least one optical fiber (46); the butterfly unit body (42) is composed of four reinforcement members (43) and at least one optical fiber (46); The invention relates to a solid body surrounded by a diamond side (44) and two butterfly unit connecting edges (41); the four reinforcing unit side edges (44) are respectively located on the four sides of the diamond; the upper ends of the two reinforcing unit side edges (44) on the upper side of the short axis of the diamond are connected by the butterfly unit connecting edge (41); the lower ends of the two reinforcing unit side edges (44) on the lower side of the short axis of the diamond are connected by the butterfly unit connecting edge (41); the two butterfly unit connecting edges (41) are parallel to the short axis of the diamond; two reinforcing members (43) and an optical fiber (46) are located in the butterfly unit body (42); the optical fiber (46) is located between the two reinforcing members (43); the two reinforcing members (43) are located on both sides of the short axis of the diamond; and at least one electrical unit (6) is provided in the reinforcing unit (5).

2. The optical cable with a special-shaped loose tube according to claim 1, characterized in that: The reinforcing unit (5) is composed of a reinforcing unit body (51), wherein the reinforcing unit body (51) comprises an upper side edge (53) of the reinforcing unit, a long side (54) on the right side of the reinforcing unit, a short side (55) on the right side of the reinforcing unit, a lower side edge (57) of the reinforcing unit, a short side (58) on the left side of the reinforcing unit, and a long side (59) on the left side of the reinforcing unit. The upper side edge (53) of the reinforcing unit and the lower side edge (57) of the reinforcing unit are parallel and arranged horizontally, the long side (54) on the right side of the reinforcing unit and the long side (59) on the left side of the reinforcing unit are parallel, the short side (55) on the right side of the reinforcing unit and the short side (58) on the left side of the reinforcing unit are parallel, and two ends of the upper side edge (53) of the reinforcing unit are respectively connected to the right side edge (54) of the reinforcing unit and the short side (55) on the left side of the reinforcing unit. The upper ends of the long side (54) and the short side (58) on the left side of the reinforcing unit are connected, the two ends of the lower side (57) of the reinforcing unit are respectively connected to the short side (55) on the right side of the reinforcing unit and the lower ends of the long side (59) on the left side of the reinforcing unit, the lower end of the short side (58) on the left side of the reinforcing unit is connected to the upper end of the long side (59) on the left side of the reinforcing unit, the short side (58) on the left side of the reinforcing unit and the long side (59) on the left side of the reinforcing unit form an angle recessed toward the middle of the reinforcing unit body (51), the lower end of the long side (54) on the right side of the reinforcing unit is connected to the upper end of the short side (55) on the right side of the reinforcing unit, and the long side (54) on the right side of the reinforcing unit and the short side (55) on the right side of the reinforcing unit form an angle recessed toward the middle of the reinforcing unit body (51), An angle is recessed toward the middle of the reinforcing unit body (51); a first wire accommodating cavity (52) is provided in the angle between the upper side (53) of the reinforcing unit and the short side (58) on the left side of the reinforcing unit; a second wire accommodating cavity (56) is provided in the angle between the short side (55) on the right side of the reinforcing unit and the lower side (57) of the reinforcing unit; the electrical unit (6) is located in the first wire accommodating cavity (52) and the second wire accommodating cavity (56); the long sides of the two optical fiber ribbon sleeves (2) are respectively in contact with the upper side (53) and the lower side (57) of the reinforcing unit (5); the two butterfly units (4) are respectively located on the left and right sides of the reinforcing unit (5); The lower butterfly unit connecting edge (41) of the butterfly unit (4) on the left side is fitted with the upper side wall of the optical fiber ribbon sleeve (2) on the lower side, and the sum of the length of the lower butterfly unit connecting edge (41) of the butterfly unit (4) on the left side and the length of the lower side edge (57) of the reinforcing unit is equal to the length of the upper side wall of the optical fiber ribbon sleeve (2) on the lower side; the upper butterfly unit connecting edge (41) of the butterfly unit (4) on the right side is fitted with the lower side wall of the optical fiber ribbon sleeve (2) on the upper side, and the sum of the length of the upper butterfly unit connecting edge (41) of the butterfly unit (4) on the right side and the length of the upper side edge (53) of the reinforcing unit is equal to the length of the lower side wall of the optical fiber ribbon sleeve (2) on the upper side;The reinforcing unit side edge (44) on the lower right side of the butterfly unit (4) on the left is in contact with the long side (59) on the left side of the reinforcing unit and has the same length; the reinforcing unit side edge (44) on the upper right side of the butterfly unit (4) on the left is in contact with the short side (58) on the left side of the reinforcing unit; and the reinforcing unit side edge (44) on the upper right side of the butterfly unit (4) on the left is in contact with the left side wall of the optical fiber ribbon sleeve (2) on the upper side; the sum of the lengths of the short side (58) on the left side of the reinforcing unit and the left side wall of the optical fiber ribbon sleeve (2) on the upper side is equal to the length of the reinforcing unit side edge (44); The reinforcing unit side edge (44) on the upper left side of the right butterfly unit (4) is in contact with the right long side (54) of the reinforcing unit and has the same length, the reinforcing unit side edge (44) on the lower left side of the right butterfly unit (4) is in contact with the right long side (54) of the reinforcing unit, and the reinforcing unit side edge (44) on the lower left side of the right butterfly unit (4) is in contact with the right side wall of the optical fiber ribbon sleeve (2) on the lower side, and the sum of the lengths of the right long side (54) of the reinforcing unit and the right side wall of the optical fiber ribbon sleeve (2) on the lower side is equal to the length of the reinforcing unit side edge (44). ; 3. The optical cable with a special-shaped loose tube according to claim 2, characterized in that: A fourth wire accommodating cavity (511) is provided in the angle between the upper side (53) of the reinforcing unit and the right long side (54) of the reinforcing unit, a third wire accommodating cavity (510) is provided in the angle between the left long side (59) of the reinforcing unit and the lower side (57) of the reinforcing unit, and at least one electrical unit (6) is provided in the fourth wire accommodating cavity (511) and the third wire accommodating cavity (510).

4. The optical cable with a special-shaped loose tube according to claim 3, characterized in that: An elliptical optical fiber cavity (47) is provided between the two reinforcing members (43), at least one optical fiber (45) is located in the optical fiber cavity (47), the major axis of the elliptical optical fiber cavity (47) and the minor axis of the rhombus are located on the same straight line, and the common tangent line between the reinforcing member (43) and the optical fiber cavity (47) is parallel to the corresponding side edge (44) of the reinforcing unit.

5. The optical cable with a special-shaped loose tube according to claim 4, characterized in that: A tearing opening (46) is respectively provided at both ends of the rhombus-shaped short axis.

6. The optical cable with a special-shaped loose tube according to claim 5, characterized in that: The material of the outer sheath (1) is polyethylene.

7. The optical cable with a special-shaped loose tube according to claim 6, characterized in that: The material of the optical fiber ribbon sleeve (2) is modified polypropylene or polybutylene terephthalate.

8. The optical cable with a special-shaped loose tube according to claim 7, characterized in that: The optical fiber ribbon (3) is formed by combining a plurality of optical fibers (45) with resin.

9. The optical cable with a special-shaped loose tube according to claim 8, characterized in that: The material of the butterfly unit body (42) is flame retardant polyolefin.

10. The optical cable with a special-shaped loose tube according to claim 9, characterized in that: The reinforcement member (43) is a phosphating steel wire or a glass fiber reinforced plastic rod.

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