Bow-type drop cable having insertion structure

Abstract

A bow-type drop cable having an insertion structure, which is provided with an outer protective layer (5) and a cable core. The cable core is composed of four reinforcing limiting components (1) and twelve sub-units. In a same cross-section, each reinforcing limiting component (1) has four vertices, and an arc recessed towards the center is formed between every two adjacent vertices. The centers of the four reinforcing limiting components (1) are located at the four vertices of a same large square. Each arc of the reinforcing limiting components (1) has one sub-unit attached thereto, and every two adjacent reinforcing limiting components (1) share a sub-unit. A bow-type unit (2) is disposed in each sub-unit. The bow-type drop cable having an insertion structure features high compression resistance, improved protection for the bow-type units (2), high production efficiency, low defect rates, structural stability, ease of installation, and low costs.

Description

An embedded butterfly-shaped optical cable Technical Field

[0001] The invention belongs to the field of optical cables, and in particular relates to an embedded butterfly-shaped introduction optical cable. Background Art

[0002] Butterfly-shaped drop cables are used for the last mile of fiber-optic access to the home. Due to their small outer diameter, light weight, low cost, good flexibility and bending performance, and easy installation, they are widely used in application environments such as smart buildings, digital communities, campus networks, and local area networks.

[0003] In the prior art, CN115097588A discloses a multi-unit butterfly-shaped optical cable having n identical butterfly-shaped units and n identical snap-fit ​​components, where n≥3, n is an integer, and the number of butterfly units is equal to the number of snap-fit ​​components. The cable is characterized in that: the butterfly unit is composed of an optical fiber, two reinforcing members located on the upper and lower sides of the optical fiber, and a unit sheath, the unit sheath covers the optical fiber and the reinforcing members, the upper surface of the unit sheath has a recessed first fitting opening, and the lower surface of the unit sheath has a recessed second fitting opening; the snap-fit ​​component is composed of a snap-fit ​​body; in the assembled state, the outer edges of all the butterfly units are on the outside, the outer edges of all the butterfly units are on the same cylindrical surface, adjacent butterfly units are connected by a snap-fit ​​component, one end of the snap-fit ​​component between adjacent butterfly units is embedded in the second fitting opening of one butterfly unit, and the other end of the snap-fit ​​component between adjacent butterfly units is embedded in the first fitting opening of another butterfly unit, and the internal space enclosed by all the butterfly units and the snap-fit ​​components is a central cavity. Technical issues

[0004] Although the above-mentioned existing technology realizes the scalability of the butterfly-shaped optical cable, it still has the following defects: when there is no reinforcement member in the central cavity, the structural stability is poor; when a reinforcement member or other component is provided in the central cavity, the butterfly unit is in line contact with the reinforcement member or other component in the central cavity, and two adjacent butterfly units are connected by a snap-fit ​​component. The contact surface between the butterfly unit and the snap-fit ​​component, and the contact surface between the butterfly unit and the reinforcement member is small, resulting in the optical cable having weak compressive resistance. Technical Solutions

[0005] To solve the above problems, the present invention aims to disclose an embedded butterfly-shaped optical cable, which is implemented by adopting the following technical solutions.

[0006] A butterfly-shaped optical cable with an embedded structure has an outer sheath and a cable core, wherein the outer sheath is extruded outside the cable core, and is characterized in that: the cable core is composed of four reinforcing limiting components and twelve subunits; within the same cross-section, the reinforcing limiting component has four vertex angles, and the four vertex angles are located at the four vertices of the same small square; one side of the small square is arranged horizontally; an arc is formed between two adjacent vertex angles; the central angles of the four arcs are equal; the arc diameters of the four arcs are equal; the four arcs are all recessed toward the center of the small square; the arc above the reinforcing limiting component is a first arc segment; the arc below the reinforcing limiting component is a second arc segment; the arc to the left of the reinforcing limiting component is a third arc segment; and the arc to the right of the reinforcing limiting component is a fourth arc segment; The subunit is composed of a butterfly unit and a butterfly unit protective layer, a butterfly unit cavity is formed in the butterfly unit protective layer, the butterfly unit is located in the butterfly unit cavity, the butterfly unit protective layer is composed of two fifth arc segments, the central angles of the two fifth arc segments are equal, the arc diameters of the two fifth arc segments are equal, the bending directions of the two fifth arc segments are opposite, and the two ends of one fifth arc segment are fixedly connected to the two ends of the other fifth arc segment; the centers of the four reinforced limiting components are located on the four vertices of the same large square, and one side of the large square is horizontally arranged; a subunit is provided above the upper left reinforced limiting component, and the line connecting the two intersection points of the two fifth arc segments of the butterfly unit protective layer of the subunit is horizontally arranged, and the first arc segment of the upper left reinforced limiting component is in contact with the fifth arc segment below the butterfly unit protective layer of the subunit; A subunit is provided between the upper left reinforcing limiting component and the lower left reinforcing limiting component, and the line connecting the two intersection points of the two fifth arc segments of the butterfly-shaped unit sheath of the subunit is arranged horizontally, and the second arc segment of the upper left reinforcing limiting component and the first arc segment of the lower left reinforcing limiting component are respectively in contact with the two fifth arc segments of the butterfly-shaped unit sheath of the subunit; A subunit is provided below the lower left reinforced limiting component, and the line connecting the two intersection points of the two fifth arc segments of the butterfly unit protective layer of the subunit is horizontally arranged, and the second arc segment of the lower left reinforced limiting component is in contact with the upper fifth arc segment of the butterfly unit protective layer of the subunit; a subunit is provided above the upper right reinforced limiting component, and the line connecting the two intersection points of the two fifth arc segments of the butterfly unit protective layer of the subunit is horizontally arranged, and the first arc segment of the upper right reinforced limiting component is in contact with the lower fifth arc segment of the butterfly unit protective layer of the subunit; a subunit is provided between the upper right reinforced limiting component and the lower right reinforced limiting component, and the line connecting the two intersection points of the two fifth arc segments of the butterfly unit protective layer of the subunit is horizontally arranged, and the second arc segment of the upper right reinforced limiting component and the first arc segment of the lower right reinforced limiting component are respectively in contact with the two fifth arc segments of the butterfly unit protective layer of the subunit;A subunit is provided below the lower right reinforced limiting component, and the line connecting the two intersection points of the two fifth arc segments of the butterfly unit protective layer of the subunit is horizontally set, and the second arc segment of the lower right reinforced limiting component is in contact with the fifth arc segment above the butterfly unit protective layer of the subunit; a subunit is provided to the left of the upper left reinforced limiting component, and the line connecting the two intersection points of the two fifth arc segments of the butterfly unit protective layer of the subunit is vertically set, and the third arc segment of the upper left reinforced limiting component is in contact with the fifth arc segment on the right of the butterfly unit protective layer of the subunit; a subunit is provided between the upper left reinforced limiting component and the upper right reinforced limiting component, and the line connecting the two intersection points of the two fifth arc segments of the butterfly unit protective layer of the subunit It is arranged vertically, and the fourth arc segment of the upper left reinforced limiting component and the third arc segment of the upper right reinforced limiting component are respectively in contact with the two fifth arc segments of the butterfly-shaped unit protective layer of the sub-unit; a sub-unit is provided to the right of the upper right reinforced limiting component, and the line connecting the two intersection points of the two fifth arc segments of the butterfly-shaped unit protective layer of the sub-unit is arranged vertically, and the fourth arc segment of the upper right reinforced limiting component is in contact with the fifth arc segment on the left side of the butterfly-shaped unit protective layer of the sub-unit; a sub-unit is provided to the left of the lower left reinforced limiting component, and the two intersection points of the two fifth arc segments of the butterfly-shaped unit protective layer of the sub-unit are arranged vertically, and the third arc segment of the lower left reinforced limiting component is in contact with the fifth arc segment on the right side of the butterfly-shaped unit protective layer of the sub-unit; A subunit is located between the lower left and lower right reinforcing limiter components. The two intersection points of the two fifth arc segments of the subunit's butterfly-shaped unit sheath are vertically arranged. The fourth arc segment of the lower left reinforcing limiter component and the third arc segment of the lower right reinforcing limiter component respectively abut the two fifth arc segments of the subunit's butterfly-shaped unit sheath. A subunit is located to the right of the lower right reinforcing limiter component. The two intersection points of the two fifth arc segments of the subunit's butterfly-shaped unit sheath are vertically arranged. The fourth arc segment of the lower right reinforcing limiter component abuts the left fifth arc segment of the subunit's butterfly-shaped unit sheath. The fifth arc segments of the four butterfly-shaped unit sheaths of the four adjacent subunits not abutting the same reinforcing limiter component form a complete cylindrical surface. A fixing component is also provided between the outer sheath and the cable core. Beneficial effects

[0007] The present application has the following major beneficial technical effects: 1. The four arcs of the reinforcing limiting component fit in with the fifth arc of the corresponding butterfly unit sheath, and the reinforcing limiting component and the butterfly unit sheath adopt surface contact, which increases the contact surface between the sub-unit and the reinforcing limiting component. Compared with the line contact between the ordinary cylindrical center reinforcement and the cylindrical loose tube, the present application has better anti-extrusion performance. 2. The four arcs of the reinforcing limiting component are all recessed toward the center of the small square, and the cross-section of the sub-unit is olive-shaped. The contact surface between the reinforcing limiting component and the butterfly unit sheath is an arc-shaped contact surface. Compared with the plane contact, the arc-shaped contact surface has a larger contact surface, which further improves the anti-extrusion performance of the optical cable. 3. Any two sub-units are separated by the reinforcing limiting component, and the sub-units will not squeeze each other. 4. When there are four reinforcing limit components, the distance between the two vertices of the reinforcing limit components is greater than the distance between the two ends of the butterfly unit on the long axis, so that the butterfly unit between two adjacent reinforcing limit components is completely between the two adjacent reinforcing limit components, so that the butterfly unit between two adjacent reinforcing limit components is better protected. 5. The reinforcing limit components and the sub-units are interlocked with each other, and each reinforcing limit component and the sub-unit form a whole, without the need to use yarn or tape for fixation, which has better production efficiency and lower cost. 6. A signal line is provided between the two ends of the long axis of the butterfly unit and the two ends of the long axis of the butterfly unit cavity, which can realize the photoelectric simultaneous transmission of the sub-units; or a tear rope is provided between the two ends of the long axis of the butterfly unit and the two ends of the long axis of the butterfly unit cavity, which is convenient for separating the butterfly unit sheath and removing the internal butterfly unit. 7. The structures of all sub-units and reinforcing limit components are the same, which is conducive to the production and rapid stocking of cable cores. 8. When there is a reinforced limiting component, the fifth arc segment of the butterfly unit sheath of the four sub-units that is not in contact with the reinforced limiting component forms a complete cylindrical surface, making the product structure stable, more round and smooth, and the yield rate is higher in the sheath production process, and it is more conducive to laying. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] FIG1 is a schematic diagram of the three-dimensional structure of a section of Example 1 after the end is peeled off.

[0009] FIG2 is a front view of implementation example 1.

[0010] FIG3 is a schematic diagram of the three-dimensional structure of a section of Implementation Example 2 after the end is peeled off.

[0011] FIG4 is a front view of implementation example 2.

[0012] .Figure 5 is a front view of the butterfly unit and protective layer of Implementation Example 1 or Implementation Example 2.

[0013] FIG6 is a schematic diagram of the three-dimensional structure of a section of the reinforced limiting component of Implementation Example 3.

[0014] FIG7 is a front view of the reinforced limiting component of implementation example 3.

[0015] FIG8 is a schematic diagram of the three-dimensional structure of a section of the reinforced limiting component of Implementation Example 4 after the electrical unit is peeled off.

[0016] FIG9 is a front view of the reinforced limiting component of implementation example 4.

[0017] FIG10 is a schematic diagram of the three-dimensional structure of a section of the butterfly unit protective layer of Implementation Example 3 or Implementation Example 4.

[0018] FIG11 is a front view of the butterfly unit protective layer of Implementation Example 3 or Implementation Example 4.

[0019] FIG12 is a schematic diagram of the three-dimensional structure of a section of the reinforced limiting component of Implementation Example 5 after the electrical unit is peeled off.

[0020] FIG13 is a front view of the reinforced limiting component of implementation example 5.

[0021] FIG14 is a schematic diagram of the three-dimensional structure of a section of the butterfly unit protective layer of implementation example 5.

[0022] FIG15 is a front view of the butterfly unit protective layer of implementation example 5.

[0023] In order to enable those skilled in the art to better understand and implement this patent, the marks in the drawings are now explained in detail in conjunction with the drawings in the specification.

[0024] In the figure: 1. Strengthening limiting component, 11. Strengthening limiting component body, 12. First splicing assembly, 120. First telescopic groove, 121. First splicing strip, 122. Second splicing strip, 13. Second splicing assembly, 130. Second telescopic groove, 131. Third splicing strip, 132. Fourth splicing strip, 14. Second dovetail groove, 2. Butterfly unit, 21. Butterfly sheath, 22. Strengthening member, 23. Loose tube, 24. Optical communication component, 25. Tear, 3. Butterfly unit sheath, 31. Butterfly unit cavity, 32. First dovetail groove, 330. Third telescopic groove, 331. Fifth splicing strip, 332. Sixth splicing strip, 4. Fixed layer, 5. Outer sheath, 61. Conductor, 62. Conductor sheath. Best Mode for Carrying Out the Invention

[0025] Implementation Example 1: See Figures 1, 2, and 5. An embedded butterfly-shaped drop optical cable comprises an outer sheath 5 and a cable core. The outer sheath 5 is extruded outside the cable core. The cable core is characterized in that: the cable core is composed of a reinforcing limiting component 1 and four subunits. Within the same cross-section, the reinforcing limiting component 1 has four vertex angles, which are located at the four vertices of the same small square. An arc is formed between two adjacent vertex angles. The central angles of the four arcs are equal, the arc diameters of the four arcs are equal, and the four arcs are all recessed toward the center of the small square.

[0026] The subunit is composed of a butterfly-shaped unit 2 and a butterfly-shaped unit protective layer 3. A butterfly-shaped unit cavity 31 is formed in the butterfly-shaped unit protective layer 3. The butterfly unit 2 is located in the butterfly-shaped unit cavity 31. The butterfly-shaped unit protective layer 3 is composed of two fifth arc segments. The central angles of the two fifth arc segments are equal, the arc diameters of the two fifth arc segments are equal, and the bending directions of the two fifth arc segments are opposite. The two ends of one fifth arc segment are fixedly connected to the two ends of the other fifth arc segment. The four arcs of the reinforced limiting component 1 are respectively fitted with a fifth arc segment of the butterfly-shaped unit protective layer 3 of a subunit. The other fifth arc segments of the butterfly unit protective layers 3 of the four subunits form a complete cylindrical surface.

[0027] Butterfly unit 2 is made of butterfly sheath 21, two reinforcement members 22 and a loose tube 23, two reinforcement members 22 are positioned at both sides of loose tube 23, butterfly sheath 21 is extruded outside two reinforcement members 22 and loose tube 23, at least one optical communication component 24 is provided with in the loose tube 23, the straight line at the center of the two reinforcement members 22 is the major axis, the straight line perpendicular to the major axis and passing the midpoint of the center of the two reinforcement members 22 is the minor axis, two intersections of the outer edge of the butterfly sheath 21 on minor axis both sides respectively form a tearing opening 25, for rapid separation of butterfly sheath 21, take out loose tube 23, the butterfly sheath 21 on both sides of major axis respectively fits with the inner wall of two sections of the 5th arc segment of corresponding butterfly unit sheath 3, and a fixing component 4 is also provided between outer sheath 5 and the cable core.

[0028] Furthermore, adhesive may be sprayed on the joint between the butterfly-shaped unit protective layer 3 and the reinforcing limiting component 1 to further fix the positions of the butterfly-shaped unit protective layer 3 and the reinforcing limiting component 1 . Modes for Carrying Out the Invention

[0029] Implementation Example 2: See Figures 3, 4 and 5. An embedded structure butterfly-shaped optical cable is introduced, comprising an outer sheath 5 and a cable core, wherein the outer sheath 5 is extruded outside the cable core, and is characterized in that: the cable core is composed of four reinforcing limiting components 1 and twelve subunits. Within the same cross section, the reinforcing limiting component 1 has four vertex corners, and the four vertex corners are located at the four vertices of the same small square. One side of the small square is horizontally arranged, and an arc is formed between two adjacent vertex corners. The central angles of the four arcs are equal, the arc diameters of the four arcs are equal, and the four arcs are all recessed toward the center of the small square. The arc above the reinforcing limiting component 1 is the first arc segment, the arc below the reinforcing limiting component 1 is the second arc segment, the arc to the left of the reinforcing limiting component 1 is the third arc segment, and the arc to the right of the reinforcing limiting component 1 is the fourth arc segment.

[0030] The subunit is composed of a butterfly-shaped unit 2 and a butterfly-shaped unit sheath 3. A butterfly-shaped unit cavity 31 is formed in the butterfly-shaped unit sheath 3. The butterfly unit 2 is located in the butterfly-shaped unit cavity 31. The butterfly-shaped unit sheath 3 is composed of two fifth arc segments. The central angles of the two fifth arc segments are equal, the arc diameters of the two fifth arc segments are equal, the bending directions of the two fifth arc segments are opposite, and the two ends of one fifth arc segment are fixedly connected to the two ends of the other fifth arc segment.

[0031] The centers of the four reinforcing limiting components 1 are located at the four vertices of the same large square, and one side of the large square is horizontally arranged;

[0032] A subunit is provided above the upper left reinforcing limiting component 1, and the line connecting the two intersection points of the two fifth arc segments of the butterfly-shaped unit sheath 3 of the subunit is arranged horizontally, and the first arc segment of the upper left reinforcing limiting component 1 is in contact with the lower fifth arc segment of the butterfly-shaped unit sheath 3 of the subunit;

[0033] A subunit is provided between the upper left reinforcing limiting component 1 and the lower left reinforcing limiting component 1. The line connecting the two intersection points of the two fifth arc segments of the butterfly-shaped unit sheath 3 of the subunit is arranged horizontally. The second arc segment of the upper left reinforcing limiting component 1 and the first arc segment of the lower left reinforcing limiting component 1 are respectively in contact with the two fifth arc segments of the butterfly-shaped unit sheath 3 of the subunit.

[0034] A subunit is provided below the lower left reinforced limiting component 1, and the line connecting the two intersection points of the two fifth arc segments of the butterfly-shaped unit sheath 3 of the subunit is arranged horizontally, and the second arc segment of the lower left reinforced limiting component 1 is in contact with the upper fifth arc segment of the butterfly-shaped unit sheath 3 of the subunit;

[0035] A subunit is provided above the upper right reinforcing limiting component 1, and the line connecting the two intersection points of the two fifth arc segments of the butterfly-shaped unit sheath 3 of the subunit is arranged horizontally, and the first arc segment of the upper right reinforcing limiting component 1 is in contact with the lower fifth arc segment of the butterfly-shaped unit sheath 3 of the subunit;

[0036] A subunit is provided between the upper right reinforcing limiting component 1 and the lower right reinforcing limiting component 1. The line connecting the two intersection points of the two fifth arc segments of the butterfly-shaped unit sheath 3 of the subunit is arranged horizontally. The second arc segment of the upper right reinforcing limiting component 1 and the first arc segment of the lower right reinforcing limiting component 1 are respectively in contact with the two fifth arc segments of the butterfly-shaped unit sheath 3 of the subunit.

[0037] A subunit is provided below the lower right reinforcing limiting component 1, and the line connecting the two intersection points of the two fifth arc segments of the butterfly-shaped unit sheath 3 of the subunit is arranged horizontally, and the second arc segment of the lower right reinforcing limiting component 1 is in contact with the upper fifth arc segment of the butterfly-shaped unit sheath 3 of the subunit;

[0038] A subunit is provided to the left of the upper left reinforcing limiting component 1, and the line connecting the two intersection points of the two fifth arc segments of the butterfly-shaped unit sheath 3 of the subunit is vertically arranged, and the third arc segment of the upper left reinforcing limiting component 1 is in contact with the fifth arc segment on the right of the butterfly-shaped unit sheath 3 of the subunit;

[0039] A subunit is provided between the upper left reinforcing limiting component 1 and the upper right reinforcing limiting component 1. The line connecting the two intersection points of the two fifth arc segments of the butterfly-shaped unit sheath 3 of the subunit is vertically arranged. The fourth arc segment of the upper left reinforcing limiting component 1 and the third arc segment of the upper right reinforcing limiting component 1 are respectively in contact with the two fifth arc segments of the butterfly-shaped unit sheath 3 of the subunit.

[0040] A subunit is provided to the right of the upper right reinforcing limiting component 1, and the line connecting the two intersection points of the two fifth arc segments of the butterfly-shaped unit sheath 3 of the subunit is vertically arranged, and the fourth arc segment of the upper right reinforcing limiting component 1 is in contact with the fifth arc segment on the left of the butterfly-shaped unit sheath 3 of the subunit;

[0041] A subunit is provided on the left side of the lower left reinforcing limiting component 1, and the two intersection points of the two fifth arc segments of the butterfly-shaped unit sheath 3 of the subunit are vertically arranged, and the third arc segment of the lower left reinforcing limiting component 1 is in contact with the fifth arc segment on the right side of the butterfly-shaped unit sheath 3 of the subunit;

[0042] A subunit is provided between the lower left reinforcing limiting component 1 and the lower right reinforcing limiting component 1. The two intersection points of the two fifth arc segments of the butterfly-shaped unit sheath 3 of the subunit are vertically arranged. The fourth arc segment of the lower left reinforcing limiting component 1 and the third arc segment of the lower right reinforcing limiting component 1 are respectively in contact with the two fifth arc segments of the butterfly-shaped unit sheath 3 of the subunit.

[0043] A subunit is provided to the right of the lower right reinforcing limiting component 1, and the two intersection points of the two fifth arc segments of the butterfly-shaped unit sheath 3 of the subunit are vertically arranged, and the fourth arc segment of the lower right reinforcing limiting component 1 is in contact with the fifth arc segment on the left of the butterfly-shaped unit sheath 3 of the subunit;

[0044] The fifth arc segments of the protective layers 3 of the four butterfly-shaped units of the four sub-units adjacent to the same reinforcing limiting component 1 and not in contact with the reinforcing limiting component 1 form a complete cylindrical surface;

[0045] Butterfly unit 2 is made of butterfly sheath 21, two reinforcement members 22 and a loose tube 23, two reinforcement members 22 are positioned at both sides of loose tube 23, butterfly sheath 21 is extruded outside two reinforcement members 22 and loose tube 23, at least one optical communication component 24 is provided with in the loose tube 23, the straight line at the center of the two reinforcement members 22 is the major axis, the straight line perpendicular to the major axis and passing the midpoint of the center of the two reinforcement members 22 is the minor axis, two intersections of the outer edge of the butterfly sheath 21 on minor axis both sides respectively form a tearing opening 25, for rapid separation of butterfly sheath 21, take out loose tube 23, the butterfly sheath 21 on both sides of major axis respectively fits with the inner wall of two sections of the 5th arc segment of corresponding butterfly unit sheath 3, and a fixing component 4 is also provided between outer sheath 5 and the cable core.

[0046] Implementation Example 3: See Figures 6, 7, 10, and 11, and refer to Figures 1, 2, and 5. An embedded structure butterfly-shaped drop optical cable has an outer sheath 5 and a cable core, wherein the outer sheath 5 is extruded outside the cable core, and is characterized in that: the cable core is composed of a reinforcement limiting component 1 and four subunits. Within the same cross-section, the reinforcement limiting component 1 has four vertex angles, and the four vertex angles are located at the four vertices of the same small square. An arc is formed between two adjacent vertex angles. The central angles of the four arcs are equal, the arc diameters of the four arcs are equal, and the four arcs are all recessed toward the center of the small square.

[0047] The four arcs of the reinforcing limiting component 1 are each provided with a first splicing component 12 and a second splicing component 13. The first splicing component 12 is composed of a first splicing strip 121 and a second splicing strip 122. One end of the first splicing strip 121 and one end of the second splicing strip 122 are respectively fixedly connected to the corresponding arcs on the reinforcing limiting component 1. A first telescopic groove 120 is provided between the first splicing strip 121 and the second splicing strip 122. The distance between the other end of the first splicing strip 121 and the other end of the second splicing strip 122 is greater than the distance between the first splicing strip 121 and the second splicing strip 122. The distance between the end and one end of the second splice bar 122, the second splice assembly 13 is composed of a third splice bar 131 and a fourth splice bar 132, one end of the third splice bar 131 and one end of the fourth splice bar 132 are respectively fixedly connected to the corresponding arc on the reinforcing limiting component 1, a second telescopic groove 130 is provided between the third splice bar 131 and the fourth splice bar 132, and the distance between the other end of the third splice bar 131 and the other end of the fourth splice bar 132 is greater than the distance between one end of the third splice bar 131 and one end of the fourth splice bar 132;

[0048] The subunit is composed of a butterfly unit 2 and a butterfly unit protective layer 3, a butterfly unit cavity 31 is formed in the butterfly unit protective layer 3, the butterfly unit 2 is located in the butterfly unit cavity 31, the butterfly unit protective layer 3 is composed of two fifth arc segments, the central angles of the two fifth arc segments are equal, the arc diameters of the two fifth arc segments are equal, the bending directions of the two fifth arc segments are opposite, the two ends of one fifth arc segment are fixedly connected to the two ends of the other fifth arc segment, the four arcs of the reinforcing limiting component 1 are respectively fitted with a fifth arc segment of the butterfly unit protective layer 3 of a subunit, and the reinforcing limiting component 1 is fixedly connected to the reinforcing limiting component 1. Two first dovetail grooves 32 are formed on the outer wall of a fifth arc segment of the butterfly-shaped unit sheath 3 to which the positioning component 1 is attached. The first splicing component 12 is spliced ​​with one of the first dovetail grooves 32. The first splicing strip 121 and the second splicing strip 122 are respectively spliced ​​with the two side walls of one of the first dovetail grooves 32. The second splicing component 13 is spliced ​​with the other first dovetail groove 32. The third splicing strip 131 and the fourth splicing strip 132 are respectively spliced ​​with the two side walls of the other first dovetail groove 32. The other fifth arc segments of the butterfly-shaped unit sheath 3 of the four sub-units form a complete cylindrical surface.

[0049] Butterfly unit 2 is made of butterfly sheath 21, two reinforcement members 22 and a loose tube 23, two reinforcement members 22 are positioned at both sides of loose tube 23, butterfly sheath 21 is extruded outside two reinforcement members 22 and loose tube 23, at least one optical communication component 24 is provided with in the loose tube 23, the straight line at the center of the two reinforcement members 22 is the major axis, the straight line perpendicular to the major axis and passing the midpoint of the center of the two reinforcement members 22 is the minor axis, two intersections of the outer edge of the butterfly sheath 21 on minor axis both sides respectively form a tearing opening 25, for rapid separation of butterfly sheath 21, take out loose tube 23, the butterfly sheath 21 on both sides of major axis respectively fits with the inner wall of two sections of the 5th arc segment of corresponding butterfly unit sheath 3, and a fixing component 4 is also provided between outer sheath 5 and the cable core.

[0050] Implementation Example 4: See Figures 8, 9, 10, and 11, and refer to Figures 1, 2, and 5. An embedded structure butterfly-shaped optical cable is introduced, having an outer sheath 5 and a cable core, wherein the outer sheath 5 is extruded outside the cable core, and is characterized in that: the cable core is composed of a reinforcing limiting component 1 and four sub-units, at least one electrical unit is provided inside the reinforcing limiting component 1, and the electrical unit is composed of a conductor 61 and an electrical unit sheath 62 extruded outside the conductor 61. Within the same cross-section, the reinforcing limiting component 1 has four vertex angles, and the four vertex angles are located at the four vertices of the same small square. An arc is formed between two adjacent vertex angles, and the central angles of the four arcs are equal, the arc diameters of the four arcs are equal, and the four arcs are all recessed toward the center of the small square.

[0051] The four arcs of the reinforcing limiting component 1 are each provided with a first splicing component 12 and a second splicing component 13. The first splicing component 12 is composed of a first splicing strip 121 and a second splicing strip 122. One end of the first splicing strip 121 and one end of the second splicing strip 122 are respectively fixedly connected to the corresponding arcs on the reinforcing limiting component 1. A first telescopic groove 120 is provided between the first splicing strip 121 and the second splicing strip 122. The distance between the other end of the first splicing strip 121 and the other end of the second splicing strip 122 is greater than the distance between the first splicing strip 121 and the second splicing strip 122. The distance between the end and one end of the second splice bar 122, the second splice assembly 13 is composed of a third splice bar 131 and a fourth splice bar 132, one end of the third splice bar 131 and one end of the fourth splice bar 132 are respectively fixedly connected to the corresponding arc on the reinforcing limiting component 1, a second telescopic groove 130 is provided between the third splice bar 131 and the fourth splice bar 132, and the distance between the other end of the third splice bar 131 and the other end of the fourth splice bar 132 is greater than the distance between one end of the third splice bar 131 and one end of the fourth splice bar 132;

[0052] The subunit is composed of a butterfly unit 2 and a butterfly unit protective layer 3, a butterfly unit cavity 31 is formed in the butterfly unit protective layer 3, the butterfly unit 2 is located in the butterfly unit cavity 31, the butterfly unit protective layer 3 is composed of two fifth arc segments, the central angles of the two fifth arc segments are equal, the arc diameters of the two fifth arc segments are equal, the bending directions of the two fifth arc segments are opposite, the two ends of one fifth arc segment are fixedly connected to the two ends of the other fifth arc segment, the four arcs of the reinforcing limiting component 1 are respectively fitted with a fifth arc segment of the butterfly unit protective layer 3 of a subunit, and the reinforcing limiting component 1 is fixedly connected to the reinforcing limiting component 1. Two first dovetail grooves 32 are formed on the outer wall of a fifth arc segment of the butterfly-shaped unit sheath 3 to which the positioning component 1 is attached. The first splicing component 12 is spliced ​​with one of the first dovetail grooves 32. The first splicing strip 121 and the second splicing strip 122 are respectively spliced ​​with the two side walls of one of the first dovetail grooves 32. The second splicing component 13 is spliced ​​with the other first dovetail groove 32. The third splicing strip 131 and the fourth splicing strip 132 are respectively spliced ​​with the two side walls of the other first dovetail groove 32. The other fifth arc segments of the butterfly-shaped unit sheath 3 of the four sub-units form a complete cylindrical surface.

[0053] Butterfly unit 2 is made of butterfly sheath 21, two reinforcement members 22 and a loose tube 23, two reinforcement members 22 are positioned at both sides of loose tube 23, butterfly sheath 21 is extruded outside two reinforcement members 22 and loose tube 23, at least one optical communication component 24 is provided with in the loose tube 23, the straight line at the center of the two reinforcement members 22 is the major axis, the straight line perpendicular to the major axis and passing the midpoint of the center of the two reinforcement members 22 is the minor axis, two intersections of the outer edge of the butterfly sheath 21 on minor axis both sides respectively form a tearing opening 25, for rapid separation of butterfly sheath 21, take out loose tube 23, the butterfly sheath 21 on both sides of major axis respectively fits with the inner wall of two sections of the 5th arc segment of corresponding butterfly unit sheath 3, and a fixing component 4 is also provided between outer sheath 5 and the cable core.

[0054] Implementation Example 5: Please see Figures 12, 13, 14, and 15, and refer to Figures 1, 2, and 5. An embedded structure butterfly-shaped optical cable is introduced, comprising an outer sheath 5 and a cable core, wherein the outer sheath 5 is extruded outside the cable core, and is characterized in that: the cable core is composed of a reinforcing limiting component 1 and four sub-units, at least one electrical unit is provided inside the reinforcing limiting component 1, and the electrical unit is composed of a conductor 61 and an electrical unit sheath 62 extruded outside the conductor 61. Within the same cross-section, the reinforcing limiting component 1 has four vertex angles, and the four vertex angles are located at the four vertices of the same small square. An arc is formed between two adjacent vertex angles, and the central angles of the four arcs are equal, the arc diameters of the four arcs are equal, and the four arcs are all recessed toward the center of the small square. Two second dovetail grooves 14 are provided on each of the four arcs of the reinforcing limiting component 1.

[0055] The subunit is composed of a butterfly unit 2 and a butterfly unit protective layer 3, a butterfly unit cavity 31 is formed in the butterfly unit protective layer 3, the butterfly unit 2 is located in the butterfly unit cavity 31, the butterfly unit protective layer 3 is composed of two fifth arc segments, the central angles of the two fifth arc segments are equal, the arc diameters of the two fifth arc segments are equal, the bending directions of the two fifth arc segments are opposite, the two ends of one fifth arc segment are fixedly connected to the two ends of the other fifth arc segment, the four arcs of the reinforcing limiting component 1 are respectively fitted with a fifth arc segment of the butterfly unit protective layer 3 of a subunit, and two third embedding components are provided on the outer wall of a fifth arc segment of the butterfly unit protective layer 3 fitted with the reinforcing limiting component 1, and the third embedding component is composed of a fifth embedding strip 331 and a sixth embedding strip 332. The connecting strips 332 are respectively fixedly connected to the corresponding fifth arc segments on the butterfly unit sheath 3. A third expansion slot 330 is provided between the fifth and sixth connecting strips 331, 332. The distance between the other end of the fifth connecting strip 331 and the other end of the sixth connecting strip 332 is greater than the distance between one end of the fifth connecting strip 331 and one end of the sixth connecting strip 332. The two third connecting assemblies are respectively engaged with the corresponding second dovetail grooves 14. The fifth and sixth connecting strips 331, 332 are respectively engaged with the side walls of the corresponding second dovetail grooves 14. The other fifth arc segments of the butterfly unit sheaths 3 of the four sub-units form a complete cylindrical surface.

[0056] Butterfly unit 2 is made of butterfly sheath 21, two reinforcement members 22 and a loose tube 23, two reinforcement members 22 are positioned at both sides of loose tube 23, butterfly sheath 21 is extruded outside two reinforcement members 22 and loose tube 23, at least one optical communication component 24 is provided with in the loose tube 23, the straight line at the center of the two reinforcement members 22 is the major axis, the straight line perpendicular to the major axis and passing the midpoint of the center of the two reinforcement members 22 is the minor axis, two intersections of the outer edge of the butterfly sheath 21 on minor axis both sides respectively form a tearing opening 25, for rapid separation of butterfly sheath 21, take out loose tube 23, the butterfly sheath 21 on both sides of major axis respectively fits with the inner wall of two sections of the 5th arc segment of corresponding butterfly unit sheath 3, and a fixing component 4 is also provided between outer sheath 5 and the cable core.

[0057] For the sake of simplicity, only one second dovetail groove 14 is shown in FIG12 . In fact, each side wall of the reinforcing and limiting component 1 has two second dovetail grooves 14 .

[0058] The embedded butterfly-shaped optical cable described in the present application is characterized in that the material of the outer sheath 5 is high-density polyethylene, medium-density polyethylene, or low-density polyethylene.

[0059] The embedded structure butterfly-shaped introduction optical cable described in the present application is characterized in that the material of the butterfly-shaped unit sheath 3 is high-density polyethylene, medium-density polyethylene, or low-density polyethylene.

[0060] The embedded butterfly-shaped optical cable described in the present application is characterized in that the material of the butterfly-shaped sheath 21 is flame-retardant polyolefin.

[0061] The embedded structure butterfly-shaped introduction optical cable described in the present application is characterized in that the material of the loose tube 23 is polybutylene terephthalate.

[0062] The embedded butterfly-shaped optical cable described in the present application is characterized in that the optical communication component 24 is an optical fiber or an optical fiber ribbon or an optical fiber ribbon body, the optical fiber ribbon is formed by at least two optical fibers being ribboned together, and the optical fiber ribbon body is formed by at least two optical fiber ribbons stacked together.

[0063] The embedded structure butterfly-shaped introduction optical cable described in the present application is characterized in that the optical fiber is a single-mode optical fiber or a multi-mode optical fiber.

[0064] An embedded structure butterfly-shaped introduction optical cable described in the present application is characterized in that the distance between the two vertices of the reinforcing limiting component 1 is greater than the distance between the two ends of the butterfly unit 2 on the long axis.

[0065] The embedded structure butterfly-shaped introduction optical cable described in the present application is characterized in that two signal lines are also provided in the butterfly unit cavity 31, and the two signal lines are respectively located on the line connecting the two intersection points of the two fifth arc segments of the butterfly unit sheath 3, and are located on both sides of the butterfly unit 2, which can realize the simultaneous optical and electrical transmission of the sub-units.

[0066] The embedded structure butterfly-shaped introduction optical cable described in the present application is characterized in that two tear ropes are also provided in the butterfly unit cavity 31, and the two tear ropes are respectively located on the line connecting the two intersection points of the two fifth arc segments of the butterfly unit sheath 3, and are located on both sides of the butterfly unit 2, so as to facilitate the separation of the butterfly unit sheath 3 and the removal of the internal butterfly unit 2.

[0067] The embedded butterfly-shaped optical cable described in the present application is characterized in that the first connecting strip 121 , the second connecting strip 122 , the third connecting strip 131 , the fourth connecting strip 132 , the fifth connecting strip 331 and the sixth connecting strip 332 are elastic.

[0068] In the present application, the subunits of Implementation Examples 1 and 2 are embedded in the side surfaces of the reinforced limiting component 1 that are recessed toward the middle. In Implementation Examples 3 to 5, not only are the subunits embedded in the side surfaces of the reinforced limiting component 1 that are recessed toward the middle, but the subunits and the reinforced limiting component 1 are also further fixed by means of interlocking components and dovetail grooves.

[0069] In the present application, the outer edge of the cross section of the butterfly-shaped unit protective layer 3 is similar to an olive pit shape.

[0070] In the present application, the fixing component 4 is mainly used to fix the structure of the cable core. Industrial Applicability

[0071] The present invention has been implemented and therefore has industrial applicability.

Claims

1. An embedded structure butterfly-shaped optical cable, comprising an outer sheath (5) and a cable core, wherein the outer sheath (5) is extruded outside the cable core, and characterized in that: The cable core is composed of four reinforcing limiting components (1) and twelve subunits. In the same cross section, the reinforcing limiting component (1) has four vertex angles, and the four vertex angles are located at the four vertices of the same small square. One side of the small square is arranged horizontally, and an arc is formed between two adjacent vertex angles. The central angles of the four arcs are equal, the arc diameters of the four arcs are equal, and the four arcs are all recessed toward the center of the small square. The arc above the reinforcing limiting component (1) is the first arc segment, the arc below the reinforcing limiting component (1) is the second arc segment, the arc to the left of the reinforcing limiting component (1) is the third arc segment, and the arc to the right of the reinforcing limiting component (1) is the fourth arc segment. The subunit is composed of a butterfly unit (2) and a butterfly unit protective layer (3), a butterfly unit cavity (31) is formed in the butterfly unit protective layer (3), the butterfly unit (2) is located in the butterfly unit cavity (31), the butterfly unit protective layer (3) is composed of two fifth arc segments, the central angles of the two fifth arc segments are equal, the arc diameters of the two fifth arc segments are equal, the bending directions of the two fifth arc segments are opposite, and the two ends of one fifth arc segment are fixedly connected to the two ends of the other fifth arc segment; the centers of the four reinforcing limiting components (1) are located at the four vertices of the same large square, and one side of the large square is arranged horizontally; a subunit is provided above the upper left reinforcing limiting component (1), and the two sections of the butterfly unit protective layer (3) of the subunit are connected to the reinforcing limiting component (1) at the upper left. The line connecting the two intersection points of the fifth arc segment is arranged horizontally, and the first arc segment of the upper left reinforcing limiting component (1) is in contact with the fifth arc segment below the butterfly unit protective layer (3) of the sub-unit; a sub-unit is arranged between the upper left reinforcing limiting component (1) and the lower left reinforcing limiting component (1), and the line connecting the two intersection points of the two fifth arc segments of the butterfly unit protective layer (3) of the sub-unit is arranged horizontally, and the second arc segment of the upper left reinforcing limiting component (1) and the first arc segment of the lower left reinforcing limiting component (1) are respectively in contact with the two fifth arc segments of the butterfly unit protective layer (3) of the sub-unit; a sub-unit is arranged below the lower left reinforcing limiting component (1), and the two intersection points of the two fifth arc segments of the butterfly unit protective layer (3) of the sub-unit The connecting line is arranged horizontally, the second arc segment of the lower left reinforcing limiting component (1) is in contact with the fifth arc segment above the butterfly unit protective layer (3) of the subunit; a subunit is arranged above the upper right reinforcing limiting component (1), the connecting line of the two intersection points of the two fifth arc segments of the butterfly unit protective layer (3) of the subunit is arranged horizontally, the first arc segment of the upper right reinforcing limiting component (1) is in contact with the fifth arc segment below the butterfly unit protective layer (3) of the subunit; a subunit is arranged between the upper right reinforcing limiting component (1) and the lower right reinforcing limiting component (1), the connecting line of the two intersection points of the two fifth arc segments of the butterfly unit protective layer (3) of the subunit is arranged horizontally, the second arc segment of the upper right reinforcing limiting component (1) is in contact with the right reinforcing limiting component (1) The first arc segment of the lower reinforcement limiting component (1) is respectively in contact with the two fifth arc segments of the butterfly unit protective layer (3) of the sub-unit; a sub-unit is arranged below the lower reinforcement limiting component (1), the line connecting the two intersection points of the two fifth arc segments of the butterfly unit protective layer (3) of the sub-unit is arranged horizontally, and the second arc segment of the lower right reinforcement limiting component (1) is in contact with the upper fifth arc segment of the butterfly unit protective layer (3) of the sub-unit; a sub-unit is arranged on the left side of the upper left reinforcement limiting component (1), the line connecting the two intersection points of the two fifth arc segments of the butterfly unit protective layer (3) of the sub-unit is arranged vertically, and the third arc segment of the upper left reinforcement limiting component (1) is in contact with the right fifth arc segment of the butterfly unit protective layer (3) of the sub-unit;A subunit is provided between the upper left reinforcing limiting component (1) and the upper right reinforcing limiting component (1), and the line connecting the two intersection points of the two fifth arc segments of the butterfly unit protective layer (3) of the subunit is vertically arranged, and the fourth arc segment of the upper left reinforcing limiting component (1) and the third arc segment of the upper right reinforcing limiting component (1) are respectively in contact with the two fifth arc segments of the butterfly unit protective layer (3) of the subunit; a subunit is provided to the right of the upper right reinforcing limiting component (1), and the two fifth arc segments of the butterfly unit protective layer (3) of the subunit are respectively in contact with the two fifth arc segments of the butterfly unit protective layer (3) of the subunit. The connecting line of the two intersection points of the segments is arranged vertically, and the fourth arc segment of the upper right reinforcing limiting component (1) is in contact with the fifth arc segment on the left side of the butterfly unit protective layer (3) of the sub-unit; a sub-unit is provided on the left side of the lower left reinforcing limiting component (1), and the two intersection points of the two fifth arc segments of the butterfly unit protective layer (3) of the sub-unit are arranged vertically, and the third arc segment of the lower left reinforcing limiting component (1) is in contact with the fifth arc segment on the right side of the butterfly unit protective layer (3) of the sub-unit; the lower left reinforcing limiting component (1) and the lower right reinforcing limiting component (1) are connected. A subunit is provided between the components (1), and the two intersection points of the two fifth arc segments of the butterfly unit protective layer (3) of the subunit are arranged vertically, and the fourth arc segment of the lower left reinforcing limiting component (1) and the third arc segment of the lower right reinforcing limiting component (1) are respectively in contact with the two fifth arc segments of the butterfly unit protective layer (3) of the subunit; a subunit is provided to the right of the lower right reinforcing limiting component (1), and the two intersection points of the two fifth arc segments of the butterfly unit protective layer (3) of the subunit are arranged vertically, and the lower right reinforcing limiting component ( 1) is in contact with the fifth arc segment on the left of the butterfly unit sheath (3) of the subunit; the fifth arc segments of the four butterfly unit sheaths (3) of the four subunits adjacent to the same reinforcing limiting component (1) and not in contact with the reinforcing limiting component (1) form a complete cylindrical surface, and a fixing component (4) is further provided between the outer sheath (5) and the cable core; the material of the outer sheath is high-density polyethylene, medium-density polyethylene or low-density polyethylene, and the material of the butterfly unit sheath is high-density polyethylene, medium-density polyethylene or low-density polyethylene. ; 2. The embedded structure butterfly-shaped introduction optical cable according to claim 1, characterized in that: The butterfly unit (2) is composed of a butterfly sheath (21), two reinforcement members (22) and a loose tube (23), the two reinforcement members (22) are located on both sides of the loose tube (23), the butterfly sheath (21) is extruded outside the two reinforcement members (22) and the loose tube (23), at least one optical communication component (24) is arranged in the loose tube (23), the straight line where the center of the two reinforcement members (22) is located is the major axis, the straight line perpendicular to the major axis and passing through the midpoint of the line connecting the centers of the two reinforcement members (22) is the minor axis, two intersections of the minor axis and the outer edge of the butterfly sheath (21) on both sides of the major axis each form a tearing opening (25), and the butterfly sheath (21) on both sides of the major axis are respectively fitted with the inner walls of two fifth arc segments of the corresponding butterfly unit sheath (3).

3. An embedded structure butterfly-shaped optical cable, comprising an outer sheath (5) and a cable core, wherein the outer sheath (5) is extruded outside the cable core, and characterized in that: The cable core is composed of a reinforcing limiting component (1) and four subunits. In the same cross section, the reinforcing limiting component (1) has four vertex angles, the four vertex angles are located at four vertices of the same small square, an arc is formed between two adjacent vertex angles, the central angles of the four arcs are equal, the arc diameters of the four arcs are equal, and the four arcs are all concave toward the center of the small square. The subunit is composed of a butterfly unit (2) and a butterfly unit sheath (3). A butterfly unit cavity (31) is formed in the butterfly unit sheath (3). The butterfly unit (2) is located in the butterfly unit cavity (31). The butterfly unit sheath (3) is composed of two fifth arc segments. The central angles of the two fifth arc segments are equal, the arc diameters of the two fifth arc segments are equal, the bending directions of the two fifth arc segments are opposite, the two ends of one fifth arc segment are fixedly connected to the two ends of the other fifth arc segment, the four arc segments of the reinforcing limiting component (1) are respectively fitted with a fifth arc segment of the butterfly unit sheath (3) of a subunit, and the other fifth arc segments of the butterfly unit sheaths (3) of the four subunits form a complete cylindrical surface. A fixing component (4) is also provided between the outer sheath (5) and the cable core.

4. The butterfly-shaped optical cable with embedded structure according to claim 3, characterized in that: The butterfly unit (2) is composed of a butterfly sheath (21), two reinforcement members (22) and a loose tube (23), the two reinforcement members (22) are located on both sides of the loose tube (23), the butterfly sheath (21) is extruded outside the two reinforcement members (22) and the loose tube (23), at least one optical communication component (24) is arranged in the loose tube (23), the straight line where the center of the two reinforcement members (22) is located is the major axis, the straight line perpendicular to the major axis and passing through the midpoint of the line connecting the centers of the two reinforcement members (22) is the minor axis, two intersections of the minor axis and the outer edge of the butterfly sheath (21) on both sides of the major axis each form a tearing opening (25), and the butterfly sheath (21) on both sides of the major axis are respectively fitted with the inner walls of two fifth arc segments of the corresponding butterfly unit sheath (3).

5. The butterfly-shaped optical cable with embedded structure according to claim 4, characterized in that: A first engaging component (12) and a second engaging component (13) are respectively provided on the four arcs of the reinforcing limiting component (1); the first engaging component (12) is composed of a first elastic engaging strip (121) and a second elastic engaging strip (122); one end of the first engaging strip (121) and one end of the second engaging strip (122) are respectively fixedly connected to the corresponding arcs on the reinforcing limiting component (1); a first telescopic groove (120) is provided between the first engaging strip (121) and the second engaging strip (122); the distance between the other end of the first engaging strip (121) and the other end of the second engaging strip (122) is greater than the distance between one end of the first engaging strip (121) and one end of the second engaging strip (122); the second engaging component (13) is composed of a third elastic engaging strip (131) and a fourth elastic engaging strip (132); one end of the third engaging strip (131) and the fourth engaging strip (132) are respectively fixedly connected to the corresponding arcs on the reinforcing limiting component (1); One end of each of the butterfly-shaped unit protective layer (3) is fixedly connected to the corresponding arc on the reinforcing limiting component (1), a second telescopic groove (130) is provided between the third embedding strip (131) and the fourth embedding strip (132), and the distance between the other end of the third embedding strip (131) and the other end of the fourth embedding strip (132) is greater than the distance between one end of the third embedding strip (131) and one end of the fourth embedding strip (132); a section of the butterfly-shaped unit protective layer (3) that is in contact with the reinforcing limiting component (1) Two first dovetail grooves (32) are formed on the outer wall of the fifth arc segment, the first embedding component (12) is embedded with one of the first dovetail grooves (32), the first embedding strip (121) and the second embedding strip (122) are respectively fitted with two side walls of one of the first dovetail grooves (32), the second embedding component (13) is embedded with another first dovetail groove (32), and the third embedding strip (131) and the fourth embedding strip (132) are respectively fitted with two side walls of another first dovetail groove (32).

6. The butterfly-shaped optical cable with embedded structure according to claim 4, characterized in that: Two second dovetail grooves (14) are respectively arranged on the four arc sections of the reinforcing limiting component (1); two third embedding components are arranged on the outer wall of a fifth arc section of the butterfly-shaped unit protective layer (3) that is in contact with the reinforcing limiting component (1); the third embedding components are composed of an elastic fifth embedding strip (331) and an elastic sixth embedding strip (332); one end of the fifth embedding strip (331) and one end of the sixth embedding strip (332) are respectively fixedly connected to the corresponding fifth arc section on the butterfly-shaped unit protective layer (3); A third telescopic groove (330) is provided between the fifth splice strip (331) and the sixth splice strip (332); the distance between the other end of the fifth splice strip (331) and the other end of the sixth splice strip (332) is greater than the distance between one end of the fifth splice strip (331) and one end of the sixth splice strip (332); the two third splice components are spliced ​​with the corresponding second dovetail grooves (14) respectively; the fifth splice strip (331) and the sixth splice strip (332) are respectively fitted with the two side walls of the corresponding second dovetail grooves (14).

7. The butterfly-shaped optical cable with embedded structure according to claim 5 or claim 6, characterized in that: At least one electric unit is arranged inside the reinforced limiting component (1), and the electric unit is composed of a conductor (61) and an electric unit protective layer (62) extruded outside the conductor (61).

8. The butterfly-shaped optical cable with embedded structure according to claim 7, characterized in that: The optical communication component (24) is an optical fiber or an optical fiber ribbon or an optical fiber ribbon body. The optical fiber ribbon is formed by at least two optical fibers being ribboned together, and the optical fiber ribbon body is formed by at least two optical fiber ribbons being stacked.

9. The butterfly-shaped optical cable with embedded structure according to claim 8, characterized in that: The distance between the two vertices of the reinforced limiting component (1) is greater than the distance between the two ends of the butterfly-shaped unit (2) on the long axis.

10. The butterfly-shaped optical cable with embedded structure according to claim 9, characterized in that: Two signal lines are also provided in the butterfly unit cavity (31), and the two signal lines are respectively located on the line connecting the two intersection points of the two fifth arc segments of the butterfly unit sheath (3), and are located on both sides of the butterfly unit (2); or two tear ropes are also provided in the butterfly unit cavity (31), and the two tear ropes are respectively located on the line connecting the two intersection points of the two fifth arc segments of the butterfly unit sheath (3), and are located on both sides of the butterfly unit (2).

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