A combined butterfly optical cable

Abstract

The present invention belongs to the technical field of optical fiber cables, and discloses a combined butterfly optical fiber cable, which has an outer protective layer and four first butterfly units. The outer protective layer is in the shape of a regular quadrilateral, and an outer strengthening member protective layer is respectively provided in the middle of the four sides of the regular quadrilateral. An inner strengthening member protective layer is provided at the center inside the outer protective layer. The inner strengthening member protective layer and the four outer strengthening member protective layers are respectively connected by a connecting layer. The four connecting layers divide the inner part of the outer protective layer to form four accommodating cavities, and a first butterfly unit matching the shape of the accommodating cavity is provided in the accommodating cavity; the present invention has the beneficial effects of simple and stable structure, excellent tensile performance, high fiber core capacity, multiple use scenarios, good protection effect on optical fibers, etc.

Description

Technical Field

[0001] The present invention belongs to the technical field of optical cables, and in particular discloses a combined butterfly optical cable. Background Art

[0002] Butterfly optical cables are widely used as important carriers for FTTH (Fiber To The Home), such as non-self-supporting GJXH optical cables, self-supporting GJYXCH optical cables, and duct GJYXHA optical cables.

[0003] In the prior art, for example, CN118502048A discloses a combined butterfly optical cable, which includes a suspension wire and a communication unit. The suspension wire and the communication unit are connected by a sling. The communication unit includes a cable unit, an inner sheath layer, an optical cable unit, and an outer sheath layer arranged in sequence from the inside out. The optical cable unit includes a plurality of butterfly cables arranged in central symmetry and at intervals, and a connecting member arranged between two adjacent butterfly cables. Tearing parts are respectively arranged on both sides of the butterfly cable. The tearing part includes a first incision extending inward from the outer side of the butterfly cable, and a second incision extending outward from the end of the first incision. The first incision and the second incision form a tearing opening recessed toward the center of the cable core. The length of the second incision is less than that of the first incision. The second incision is flipped along its fixed end to form a gap in the tearing opening. Both ends of the connecting member are respectively inserted into the gaps of two adjacent butterfly cables.

[0004] The above prior art has the following deficiencies: the structure is relatively complex, the cable core structure is relatively unstable, the structure of the optical cable unit is single, the application range is narrow, the tensile effect is poor, the positions of adjacent butterfly cables affect each other, which is not conducive to the structural stability, the protection effect on the optical fiber is poor, the accommodatable amount of the optical fiber in the butterfly cable is small, and the butterfly cable cannot be laid in a self-supporting manner independently. Summary of the Invention

[0005] In order to solve the above problems, the purpose of the present invention is to disclose a combined butterfly optical cable, which is realized by the following technical solutions.

[0006] A combined butterfly optical cable has an outer sheath layer and four first butterfly units. The outer sheath layer is a regular quadrilateral, and an outer strengthening member sheath is respectively arranged in the middle of the four sides of the regular quadrilateral. An inner strengthening member sheath is arranged at the center inside the outer sheath layer. The inner strengthening member sheath and the four outer strengthening member sheaths are respectively connected by a connecting layer. The four connecting layers divide the inside of the outer sheath layer into four accommodating cavities. A first butterfly unit matching the shape of the accommodating cavity is arranged in the accommodating cavity. An inner strengthening member is arranged inside the inner strengthening member sheath, and an outer strengthening member is arranged inside the outer strengthening member sheath.

[0007] The above-mentioned combined butterfly optical cable has an outer strengthening member sheath in the shape of a regular quadrilateral, an inner strengthening member sheath in the shape of a regular quadrilateral, one end of the connecting layer is connected to the vertex of a corner of the inner strengthening member sheath, the other end of the connecting layer is connected to a side of the corresponding outer strengthening member sheath, and the connecting layer is perpendicular to this side. The two opposite connecting layers are located on the same straight line and pass through the center of the inner strengthening member sheath. The connecting layer is perpendicular to a side of the corresponding outer sheath on one side.

[0008] The above-mentioned combined butterfly optical cable has a first butterfly unit composed of a first butterfly unit sheath. The first butterfly unit sheath is composed of two symmetric butterfly wing components. Two right-angle bayonets are respectively located on the left and right sides of the connection of the two butterfly wing components. The optical fiber is located in the first butterfly unit sheath between the two right-angle bayonets. The butterfly wing component has two first side walls.

[0009] Two first side walls of one butterfly wing component are respectively attached to the corresponding two connecting layers, two first side walls of the other butterfly wing component are respectively attached to the corresponding two sides of the outer sheath, and the right-angle bayonet is clamped with the corner of the two outer strengthening member sheaths in the accommodating cavity.

[0010] The above-mentioned combined butterfly optical cable also has a protection component in the butterfly wing component. The protection component is composed of two first protection component bodies and a second protection component body. Two ends of the second protection component body are respectively connected to one end of the two first protection component bodies. One first side wall is parallel to one first protection component body of the corresponding protection component, and the other first side wall is parallel to the other first protection component body of the corresponding protection component.

[0011] The above-mentioned combined butterfly optical cable has an outer strengthening member in the outer strengthening member sheath and an inner strengthening member in the inner strengthening member sheath. The outer strengthening member and the inner strengthening member are steel wires or glass fiber reinforced plastic rods.

[0012] The above-mentioned combined butterfly optical cable has the outer sheath, the outer strengthening member sheath, the inner strengthening member sheath and the connecting layer integrally formed.

[0013] A combined butterfly optical cable has an outer sheath and a cable core. The cable core is located inside the outer sheath. The cable core is composed of n + 1 second butterfly units and n third butterfly units, where n is a positive integer. The n + 1 second butterfly units and the n third butterfly units are arranged at intervals from left to right. The second butterfly unit is composed of two first butterfly units, a square common suspension line sheath and a common suspension line. The common suspension line is located inside the common suspension line sheath.

[0014] The third butterfly unit is composed of one first butterfly unit, two square independent suspension line sheaths and two independent suspension lines. The independent suspension lines are located inside the corresponding independent suspension line sheaths.

[0015] The first butterfly unit is composed of a first butterfly unit sheath and at least one optical fiber. The first butterfly unit sheath is composed of two symmetric butterfly wing components. On the left and right sides of the connection of the two butterfly wing components, there is a right-angled bayonet each. The optical fiber is located in the first butterfly unit sheath between the two right-angled bayonets. The butterfly wing component has two first side walls and one second side wall;

[0016] One end of the first side wall of the butterfly wing component is connected to the end of an edge on the butterfly wing component of the right-angled bayonet on the same side as this first side wall. The two ends of the second side wall of the butterfly wing component are respectively connected to the other ends of the two first side walls;

[0017] In the third butterfly unit, one corner of the two independent suspension line sheaths is located in the corresponding right-angled bayonet, and the two sides of this corner are partially attached and fixed to the two sides of the corresponding right-angled bayonet respectively;

[0018] In the second butterfly unit, the shared suspension line sheath is located between the two first butterfly units. One second side wall of the two first butterfly units respectively corresponds to and coincides with and is fixed to one of the two opposite sides of the shared suspension line sheath;

[0019] The two second side walls of the third butterfly unit respectively coincide and adhere to a corresponding side of the shared suspension line sheaths of the two adjacent second butterfly units. The two first side walls on the left side of the third butterfly unit coincide and adhere to the right side of the shared suspension line sheath of the second butterfly unit adjacent on the left side and the two first side walls adjacent to the shared suspension line sheath. The two first side walls on the right side of the third butterfly unit coincide and adhere to the left side of the shared suspension line sheath of the second butterfly unit adjacent on the right side and the two first side walls adjacent to the shared suspension line sheath.

[0020] For the above-mentioned combined butterfly optical cable, when n = 2, a second butterfly unit is provided on each of the upper side and the lower side of the cable core. One side on the lower side of the shared suspension line sheath of the second butterfly unit on the upper side coincides and adheres to the uppermost second side wall of the second butterfly unit in the middle of the cable core. The two adjacent first side walls on the lower side of the shared suspension line sheath of the second butterfly unit on the upper side respectively coincide and adhere to the two corresponding first side walls on the uppermost side of the second butterfly unit in the middle of the cable core. The uppermost corners of the independent suspension line sheaths on the upper side of the two third butterfly units of the cable core are respectively located in the two corresponding right-angled bayonets on the lower side of the second butterfly unit on the upper side, and the two sides of this corner are attached to the two sides of the corresponding right-angled bayonets respectively. The first side wall on the lower left side of the second butterfly unit on the upper side coincides and adheres to the first side wall on the upper right side of the second butterfly unit on the left side of the cable core. The first side wall on the lower right side of the second butterfly unit on the upper side coincides and adheres to the first side wall on the upper left side of the second butterfly unit on the right side of the cable core;

[0021] One side on the upper side of the common suspension line sheath of the second butterfly unit on the lower side coincides and adheres to the lowermost second side wall of the second butterfly unit in the middle of the cable core. The two adjacent first side walls on the upper side of the common suspension line sheath of the second butterfly unit on the lower side respectively coincide and adhere to the two corresponding first side walls at the lowermost part of the second butterfly unit in the middle of the cable core. The lowermost corners of the independent suspension line sheaths on the lower side of the two third butterfly units of the cable core are respectively located in two corresponding right-angle bayonets on the upper side of the second butterfly unit on the lower side, and the two sides of this corner respectively adhere to the two sides of the corresponding right-angle bayonet. The first side wall on the upper left side of the second butterfly unit on the lower side coincides and adheres to the first side wall on the lower right side of the second butterfly unit on the left side of the cable core. The first side wall on the upper right side of the second butterfly unit on the lower side coincides and adheres to the first side wall on the lower left side of the second butterfly unit on the right side of the cable core.

[0022] In the above-mentioned combined butterfly optical cable, a protection component is further provided inside the butterfly wing component. The protection component is composed of two first protection component bodies and a second protection component body. The two ends of the second protection component body are respectively connected to one end of the two first protection component bodies. One first side wall is parallel to one first protection component body of the corresponding protection component, and the other first side wall is parallel to the other first protection component body of the corresponding protection component. The second side wall is parallel to the second protection component body of the corresponding protection component.

[0023] In the above-mentioned combined butterfly optical cable, the first butterfly unit sheath and the two independent suspension line sheaths of the third butterfly unit are integrally formed.

[0024] In the above-mentioned combined butterfly optical cable, the common suspension line sheath and the two first butterfly unit sheaths of the second butterfly unit are integrally formed.

[0025] In the above-mentioned combined butterfly optical cable, the optical fiber is a single-mode optical fiber or a multi-mode optical fiber.

[0026] In the above-mentioned combined butterfly optical cable, the common suspension line is a steel wire or a glass fiber reinforced plastic rod.

[0027] In the above-mentioned combined butterfly optical cable, the independent suspension line is a steel wire or a glass fiber reinforced plastic rod.

[0028] In the above-mentioned combined butterfly optical cable, the material of the protection component is steel.

[0029] This application has the following beneficial effects: 1. It is provided with four outer strengthening members and one inner strengthening member, and the four outer strengthening members are located above, below, left, and right of the inner strengthening member, enabling the optical cable to withstand greater tensile force, with more uniform stress and better anti-tensile effect.

[0030] 2. The right-angle bayonet of the first butterfly unit is clamped by an angle of two adjacent outer strengthening members, which has a better fixing effect on the first butterfly unit.

[0031] 3. The four first butterfly units are respectively located in four independent accommodating cavities. The damage of one accommodating cavity will not affect the first butterfly units in other accommodating cavities.

[0032] 4. Two protection components are arranged in the first butterfly unit, and the optical fiber is located between the two protection components, which not only enables the first butterfly unit to have good tensile strength, but also can better protect the optical fiber.

[0033] 5. The space between the two protection components is relatively large, which can protect more optical fibers.

[0034] 6. The third butterfly unit also has two independent suspension wires, which makes the tensile strength of the third butterfly unit stronger, and both of the two independent suspension wires can make the third butterfly unit self-supporting for laying, expanding the application scenarios of the third butterfly unit.

[0035] 7. The second butterfly unit is composed of two first butterfly units, a common suspension wire sheath and a common suspension wire, which enables more optical fibers in the second butterfly unit, and the second butterfly unit can also be self-supporting for laying, expanding the application scenarios of the third butterfly unit.

[0036] 8. Multiple third butterfly units and multiple second butterfly units can be combined to form cable cores of different shapes, which not only increases the number of fiber cores in the optical cable, but also can meet the needs of users for different butterfly units, and the combined cable core structure is more stable.

[0037] 9. The right-angle bayonet can also be used as a tear opening, which is convenient for accessing the optical fiber. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 is a three-dimensional structural schematic diagram of a section of Embodiment 1 of the present invention.

[0039] Figure 2 is the front view of Embodiment 1 of the present invention.

[0040] Figure 3 is the front view of the outer sheath of Embodiment 1 of the present invention.

[0041] Figure 4 is the front view of the first butterfly unit of Embodiment 1 of the present invention.

[0042] Figure 5 is the front view of the protection component of Embodiment 1 of the present invention.

[0043] Figure 6 is the front view of Embodiment 2 of the present invention.

[0044] Figure 7 It is the front view of the second butterfly unit in Embodiment 2 of the present invention.

[0045] Figure 8 It is the front view of the third butterfly unit in Embodiment 2 of the present invention.

[0046] Figure 9 It is the front view of Embodiment 3 of the present invention.

[0047] In the figure, the names of the attached drawings corresponding to the reference numerals are respectively: 1. Outer protective layer, 11. Outer protective layer main body, 12. Outer strengthening member protective layer, 13. Outer strengthening member, 14. Inner strengthening member protective layer, 15. Inner strengthening member, 16. Connection layer, 17. Accommodation cavity, 2. First butterfly unit, 21. First butterfly unit protective layer, 22. Protection component, 221. First protection component main body, 222. Second protection component main body, 23. Optical fiber, 24. First side wall, 25. Second side wall, 26. Right-angle bayonet, 3. Second butterfly unit, 31. Common suspension wire protective layer, 32. Common suspension wire, 4. Third butterfly unit, 41. Independent suspension wire protective layer, 42. Independent suspension wire. Detailed implementation manners

[0048] Embodiment 1: As Figures 1 to 4 , a combined butterfly optical cable has an outer protective layer 1 and four first butterfly units 2. The outer protective layer 1 is composed of four outer protective layer main bodies 11, four square outer strengthening member protective layers 12, four outer strengthening members 13, a square inner strengthening member protective layer 14, an inner strengthening member 15 and four connection layers 16. The four outer strengthening members 13 are respectively located above, below, left and right of the inner strengthening member 15. The outer strengthening member protective layer 12 is extruded outside the corresponding outer strengthening member 13, and the inner strengthening member protective layer 14 is extruded outside the corresponding inner strengthening member 15;

[0049] The left side wall of the upper outer strengthening member protective layer 12 and the upper side wall of the left outer strengthening member protective layer 12 are connected by an outer protective layer main body 11. The right side wall of the upper outer strengthening member protective layer 12 and the upper side wall of the right outer strengthening member protective layer 12 are connected by an outer protective layer main body 11. The left side wall of the lower outer strengthening member protective layer 12 and the lower side wall of the left outer strengthening member protective layer 12 are connected by an outer protective layer main body 11. The right side wall of the lower outer strengthening member protective layer 12 and the lower side wall of the right outer strengthening member protective layer 12 are connected by an outer protective layer main body 11;

[0050] One corner of the inner strengthening member protective layer 14 and one side wall of the corresponding outer strengthening member protective layer 12 are connected by a connection layer 16. The connection layer 16 forms a 135° angle with the adjacent side wall of the inner strengthening member protective layer 14, and the connection layer 16 is perpendicular to the connected side wall of the corresponding outer strengthening member protective layer 12;

[0051] An accommodation cavity 17 is formed between the outer sheath body 11 between two adjacent outer reinforcement layer sheaths 12 and the corresponding two connection layers 16, and a first butterfly unit 2 is disposed in the accommodation cavity 17;

[0052] The first butterfly unit 2 is composed of a first butterfly unit sheath 21, two protection components 22 and multiple optical fibers 23. The first butterfly unit sheath 21 is composed of two symmetric butterfly wing components. On the left and right sides of the connection part of the two butterfly wing components, a right-angle bayonet 26 is respectively provided. The protection component 22 is located in the corresponding butterfly wing component. The protection component 22 is composed of two first protection component main bodies 221 and a second protection component main body 222. The two ends of the second protection component main body 222 are respectively connected to one end of the two first protection component main bodies 221. The two protection components 22 face each other with openings. The multiple optical fibers 23 are located in the first butterfly unit sheath 21 between the two right-angle bayonets 26 and between the two protection components 22. The butterfly wing component has two first side walls 24 and a second side wall 25. One end of the first side wall 24 of the butterfly wing component is connected to the end of an edge of this butterfly wing component where the right-angle bayonet 26 on the same side as this first side wall 24 is located. The two ends of the second side wall 25 of the butterfly wing component are respectively connected to the other ends of the two first side walls 24. One first side wall 24 is parallel to one first protection component main body 221 of the corresponding protection component 22, and the other first side wall 24 is parallel to the other first protection component main body 221 of the corresponding protection component 22. The second side wall 25 is parallel to the second protection component main body 222 of the corresponding protection component 22;

[0053] Two first side walls 24 and a second side wall 25 of one butterfly wing component are respectively attached to a corresponding side edge of the corresponding two connection layers 16 and the inner reinforcement layer sheath 14, and two first side walls 24 and a second side wall 25 of the other butterfly wing component are attached to the outer sheath body 11. Two corners of the two outer reinforcement layer sheaths 12 located in the accommodation cavity 17 are respectively clamped with the corresponding right-angle bayonets 26.

[0054] For the above-described combined butterfly optical cable, the outer sheath body 11, the outer reinforcement layer sheath 12, the inner reinforcement layer sheath 14 and the connection layer 16 are integrally formed.

[0055] For the above-described combined butterfly optical cable, the outer reinforcement member 13 and the inner reinforcement member 15 are steel wires or glass fiber reinforced plastic rods.

[0056] Example 2: As Figures 6 to 8 , and refer to Figure 4 and Figure 5, a combined butterfly optical cable, having an outer sheath 1 and a cable core. The cable core is located inside the outer sheath 1. The cable core is composed of three second butterfly units 3 and two third butterfly units 4. The second butterfly unit 3 is composed of two first butterfly units 2, a square common suspension line sheath 31, and a common suspension line 32. The common suspension line 32 is located inside the common suspension line sheath 31;

[0057] The first butterfly unit 2 is composed of a first butterfly unit sheath 21, two protection components 22, and multiple optical fibers 23. The first butterfly unit sheath 21 is composed of two symmetric butterfly wing components. On the left and right sides of the connection part of the two butterfly wing components, there is a right-angle bayonet 26 respectively. The protection component 22 is located inside the corresponding butterfly wing component. The protection component 22 is composed of two first protection component bodies 221 and a second protection component body 222. The two ends of the second protection component body 222 are respectively connected to one end of the two first protection component bodies 221. The two protection components 22 face each other with openings. Multiple optical fibers 23 are located inside the first butterfly unit sheath 21 between the two right-angle bayonets 26 and between the two protection components 22. The butterfly wing component has two first side walls 24 and a second side wall 25. One end of the first side wall 24 of the butterfly wing component is connected to the end of a side of the right-angle bayonet 26 on the same side as this first side wall 24 on this butterfly wing component. The two ends of the second side wall 25 of the butterfly wing component are respectively connected to the other ends of the two first side walls 24. One first side wall 24 is parallel to one first protection component body 221 of the corresponding protection component 22, and the other first side wall 24 is parallel to the other first protection component body 221 of the corresponding protection component 22. The second side wall 25 is parallel to the second protection component body 222 of the corresponding protection component 22;

[0058] The common suspension line sheath 31 is located between the two first butterfly units 2. One second side wall 25 of the two first butterfly units 2 respectively corresponds to and coincides with and is fixed to one of the two opposite sides of the common suspension line sheath 31;

[0059] The third butterfly unit 4 is composed of one first butterfly unit 2, two square independent suspension line sheaths 41, and two independent suspension lines 42. The independent suspension line 42 is located inside the corresponding independent suspension line sheath 41. One corner of the two independent suspension line sheaths 41 is located inside the corresponding right-angle bayonet 26, and the two sides of this corner are respectively partially attached to and fixed to the two sides of the corresponding right-angle bayonet 26;

[0060] The three second butterfly units 3 and the two third butterfly units 4 are arranged at intervals from left to right. The left and right two corners of the upper side of the independent suspension line sheath 41 of the upper side of the independent suspension line sheath 41 are respectively located inside the right-angle bayonets 26 on the upper side of the adjacent two second butterfly units 3, and the two sides of the two corners are respectively partially attached to and fixed to the two sides of the corresponding right-angle bayonets 26;

[0061] The left and right corners of the independent suspension line sheath 41 below the independent suspension line sheath 41 are respectively located in the corresponding right-angle bayonet sockets 26 below the adjacent two second butterfly units 3, and the two sides of the two corners are respectively partially attached and fixed to the two sides of the corresponding right-angle bayonet socket 26;

[0062] The two second side walls 25 of the third butterfly unit 4 respectively coincide and are attached to the common suspension line sheaths 31 of the adjacent two second butterfly units 3. The two first side walls 24 on the left side of the third butterfly unit 4 coincide and are attached to the two adjacent first side walls 24 on the right side of the common suspension line sheath 31 of the second butterfly unit 3 adjacent on the left side. The two first side walls 24 on the right side of the third butterfly unit 4 coincide and are attached to the two adjacent first side walls 24 on the left side of the common suspension line sheath 31 of the second butterfly unit 3 adjacent on the right side.

[0063] Embodiment 3: As Figure 9 , and referring to Figure 4 , Figure 5 Figure 7 and Figure 8 , a combined butterfly optical cable. The difference between this embodiment and Embodiment 2 is that: one second butterfly unit 3 is provided on each of the upper side and the lower side of the cable core. One side of the lower side of the common suspension line sheath 31 of the second butterfly unit 3 on the upper side coincides and is attached to the uppermost second side wall 25 of the second butterfly unit 3 in the middle of the cable core. The two adjacent first side walls 24 on the lower side of the common suspension line sheath 31 of the second butterfly unit 3 on the upper side respectively coincide and are attached to the two corresponding first side walls 24 on the uppermost side of the second butterfly unit 3 in the middle of the cable core. The uppermost corners of the independent suspension line sheaths 41 on the upper sides of the two third butterfly units 4 of the cable core are respectively located in the two corresponding right-angle bayonet sockets 26 on the lower side of the second butterfly unit 3 on the upper side, and the two sides of this corner are respectively attached to the two sides of the corresponding right-angle bayonet socket 26. The first side wall 24 at the lower left of the second butterfly unit 3 on the upper side coincides and is attached to the first side wall 24 at the upper right of the second butterfly unit 3 on the left side of the cable core. The first side wall 24 at the lower right of the second butterfly unit 3 on the upper side coincides and is attached to the first side wall 24 at the upper left of the second butterfly unit 3 on the right side of the cable core;

[0064] One side on the upper side of the common suspension line sheath 31 of the second butterfly unit 3 on the lower side coincides and adheres to the lowermost second side wall 25 of the second butterfly unit 3 in the middle of the cable core. Two adjacent first side walls 24 on the upper side of the common suspension line sheath 31 of the second butterfly unit 3 on the lower side respectively coincide and adhere to two corresponding first side walls 24 at the lowermost part of the second butterfly unit 3 in the middle of the cable core. The lowermost corners of the independent suspension line sheaths 41 on the lower sides of the two third butterfly units 4 of the cable core are respectively located in two corresponding right-angle bayonets 26 on the upper side of the second butterfly unit 3 on the lower side, and the two sides of this corner respectively adhere to the two sides of the corresponding right-angle bayonet 26. The first side wall 24 on the upper left side of the second butterfly unit 3 on the lower side coincides and adheres to the first side wall 24 on the lower right side of the second butterfly unit 3 on the left side of the cable core. The first side wall 24 on the upper right side of the second butterfly unit 3 on the lower side coincides and adheres to the first side wall 24 on the lower left side of the second butterfly unit 3 on the right side of the cable core.

[0065] In the above-mentioned combined butterfly optical cable, the optical fiber 23 is a single-mode optical fiber or a multi-mode optical fiber.

[0066] In the above-mentioned combined butterfly optical cable, the first butterfly unit sheath 21 and the two independent suspension line sheaths 41 of the third butterfly unit 4 are integrally formed.

[0067] In the above-mentioned combined butterfly optical cable, the common suspension line sheath 31 and the two first butterfly unit sheaths 21 of the second butterfly unit 3 are integrally formed.

[0068] In the above-mentioned combined butterfly optical cable, the common suspension line 32 is a steel wire or a glass fiber reinforced plastic rod.

[0069] In the above-mentioned combined butterfly optical cable, the independent suspension line 42 is a steel wire or a glass fiber reinforced plastic rod.

[0070] In the above-mentioned combined butterfly optical cable, the material of the protection component 22 is steel.

[0071] Example 4: Refer to Figures 1 to 4 , a combined butterfly optical cable, which has an outer sheath 1 and four first butterfly units 2. The outer sheath 1 is a regular quadrilateral, and a regular quadrilateral outer strengthening member sheath 12 is respectively provided in the middle of the four sides of the regular quadrilateral. A regular quadrilateral inner strengthening member sheath 14 is provided at the center of the outer sheath 1. The vertices of the four corners of the inner strengthening member sheath 14 are respectively connected to one side of a corresponding outer strengthening member sheath 12 through a connecting layer 16. The two opposite connecting layers 16 are on the same straight line and pass through the center of the inner strengthening member sheath 14. The connecting layer 16 is perpendicular to one side of the outer sheath 1 on the corresponding side. The four connecting layers 16 divide the inner part of the outer sheath 1 into four accommodation cavities 17, and a first butterfly unit 2 matching the shape of the accommodation cavity 17 is provided in the accommodation cavity 17.

[0072] This application can be used as an intelligent sensor or an intelligent sensing element. Since it can transmit voice and images, it can also be used as a physical sensor, such as a voice sensor or an image sensor. Since it transmits optical signals through the total reflection principle, it can also be used as a distance sensor. The optical fiber in this application itself is an optical waveguide, so it can be used as an optical waveguide, such as an array optical waveguide or a diffractive optical waveguide. This application can also be used in the field of optical computing, as part of optical computing, optical computing, and optical network computing, such as optical chip computing.

[0073] This application has the following beneficial effects: 1. In Embodiment 1, there are four outer strengthening members 13 and one inner strengthening member 15. The four outer strengthening members 13 are located above, below, left, and right of the inner strengthening member 15, enabling the optical cable to withstand greater tensile force, being more evenly stressed, and having a better anti-tensile effect.

[0074] 2. In Embodiment 1, a corner of two adjacent outer strengthening members 13 catches the corresponding right-angle bayonet 26 of the first butterfly unit 2, providing a better fixing effect for the first butterfly unit 2.

[0075] 3. In Embodiment 1, the four first butterfly units 2 are respectively located in four independent accommodating cavities 17. Damage to one accommodating cavity 17 will not affect the first butterfly units 2 in other accommodating cavities 17.

[0076] 4. Two protection components 22 are provided in the first butterfly unit 2, and the optical fiber 23 is located between the two protection components 22, not only endowing the first butterfly unit 2 with good anti-tensile ability but also better protecting the optical fiber 23.

[0077] 5. The space between the two protection components 22 is relatively large, capable of protecting more optical fibers 23.

[0078] 6. In Embodiment 2 or Embodiment 3, the third butterfly unit 4 also has two independent suspension wires 42, making the third butterfly unit 4 have stronger anti-tensile ability, and both of the two independent suspension wires 42 can enable the third butterfly unit 4 to be self-supporting for laying, expanding the application scenarios of the third butterfly unit 4.

[0079] 7. In Embodiment 2 or Embodiment 3, the second butterfly unit 3 is composed of two first butterfly units 2, a common suspension wire sheath 31, and a common suspension wire 32, enabling more optical fibers 23 in the second butterfly unit 3, and the second butterfly unit 3 can also be self-supporting for laying, expanding the application scenarios of the third butterfly unit 4.

[0080] 8. In Embodiment 2 or Embodiment 3, multiple third butterfly units 4 and multiple second butterfly units 3 can be combined to form cable cores of different shapes, not only increasing the number of fiber cores in the optical cable but also meeting the user's requirements for different butterfly units, and the combined cable core structure is more stable.

[0081] The right-angle bayonet 26 can also be used as a tear opening to facilitate the access to the optical fiber 23.

[0082] The above embodiments are only the preferred technical solutions of the present invention and should not be regarded as limitations to 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, the equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A combined butterfly optical cable, having an outer sheath (1) and four first butterfly units (2), characterized in that: The outer sheath (1) is in the shape of a regular quadrilateral. An outer reinforcement sheath (12) is provided at the middle of each of the four sides of the regular quadrilateral. An inner reinforcement sheath (14) is provided at the center inside the outer sheath (1). The inner reinforcement sheath (14) is connected to the four outer reinforcement sheaths (12) respectively through a connecting layer (16). The four connecting layers (16) divide the interior of the outer sheath (1) into four accommodation cavities (17). A first butterfly unit (2) matching the shape of the accommodation cavity (17) is provided in the accommodation cavity (17). The outer reinforcement sheath (12) is in the shape of a regular quadrilateral. The inner reinforcement sheath (14) is in the shape of a regular quadrilateral. One end of the connecting layer (16) is connected to the vertex of an angle of the inner reinforcement sheath (14), and the other end of the connecting layer (16) is connected to a side of the corresponding outer reinforcement sheath (12), and the connecting layer (16) is perpendicular to this side. The two opposite connecting layers (16) are located on the same straight line and pass through the center of the inner reinforcement sheath (14). The connecting layer (16) is perpendicular to a side of the outer sheath (1) on the corresponding side.

2. The combined butterfly optical cable according to claim 1, characterized in that: The first butterfly unit (2) is composed of a first butterfly unit sheath (21). The first butterfly unit sheath (21) is composed of two symmetric butterfly wing components. Two right-angle bayonets (26) are respectively located on the left and right sides of the connection of the two butterfly wing components. The optical fiber (23) is located in the first butterfly unit sheath (21) between the two right-angle bayonets (26). The butterfly wing component has two first side walls (24). The two first side walls (24) of one butterfly wing component are respectively in contact with the corresponding two connecting layers (16). The two first side walls (24) of the other butterfly wing component are respectively in contact with the corresponding two sides of the outer sheath (1). The right-angle bayonet (26) is clamped with the angles of the two outer reinforcement sheaths (12) in the accommodation cavity (17).

3. The combined butterfly optical cable according to claim 2, wherein: A protection component (22) is further provided in the butterfly wing component. The protection component (22) is composed of two first protection component bodies (221) and a second protection component body (222). The two ends of the second protection component body (222) are respectively connected to one end of the two first protection component bodies (221). One first side wall (24) is parallel to one first protection component body (221) of the corresponding protection component (22), and the other first side wall (24) is parallel to the other first protection component body (221) of the corresponding protection component (22).

4. The combined butterfly optical cable according to claim 3, characterized in that: An outer reinforcement (13) is provided in the outer reinforcement sheath (12), and an inner reinforcement (15) is provided in the inner reinforcement sheath (14).

5. A combined butterfly optical cable, having an outer sheath (1) and a cable core, the cable core being located within the outer sheath (1), characterized in that: The cable core is composed of n + 1 second butterfly units (3) and n third butterfly units (4), where n is a positive integer. The n + 1 second butterfly units (3) and the n third butterfly units (4) are arranged at intervals from left to right. The second butterfly unit (3) is composed of two first butterfly units (2), a square common suspension line sheath (31) and a common suspension line (32). The common suspension line (32) is located in the common suspension line sheath (31). The third butterfly unit (4) is composed of a first butterfly unit (2), two square independent suspension line sheaths (41), and two independent suspension lines (42). The independent suspension lines (42) are located within the corresponding independent suspension line sheaths (41). The first butterfly unit (2) is composed of a first butterfly unit sheath (21) and at least one optical fiber (23). The first butterfly unit sheath (21) is composed of two symmetric butterfly wing components. On the left and right sides of the connection of the two butterfly wing components, there is a right-angle bayonet (26) respectively. The optical fiber (23) is located within the first butterfly unit sheath (21) between the two right-angle bayonets (26). The butterfly wing component has two first side walls (24) and a second side wall (25). One end of the first side wall (24) of the butterfly wing component is connected to the end of an edge of this butterfly wing component where the right-angle bayonet (26) on the same side as this first side wall (24) is located. The two ends of the second side wall (25) of the butterfly wing component are respectively connected to the other ends of the two first side walls (24). In the third butterfly unit (4), one corner of the two independent suspension line sheaths (41) is located within a right-angle bayonet (26) of the adjacent second butterfly unit (3), and the two sides of this corner are partially adhered and fixed to the two sides of the corresponding right-angle bayonet (26) respectively. In the second butterfly unit (3), the common suspension line sheath (31) is located between the two first butterfly units (2). One second side wall (25) of each of the two first butterfly units (2) corresponds to and coincides with and is fixed to one of the two opposite sides of the common suspension line sheath (31). The two second side walls (25) of the third butterfly unit (4) respectively coincide and adhere to a corresponding side of the common suspension line sheaths (31) of the two adjacent second butterfly units (3). The two first side walls (24) on the left side of the third butterfly unit (4) coincide and adhere to the two first side walls (24) adjacent to and on the right side of the common suspension line sheath (31) of the second butterfly unit (3) on the left side. The two first side walls (24) on the right side of the third butterfly unit (4) coincide and adhere to the two first side walls (24) adjacent to and on the left side of the common suspension line sheath (31) of the second butterfly unit (3) on the right side.

6. The combined butterfly optical cable according to claim 5, wherein: When n = 2, a second butterfly unit (3) is provided on each of the upper and lower sides of the cable core. One side on the lower side of the common suspension line sheath (31) of the second butterfly unit (3) on the upper side coincides and adheres to the uppermost second sidewall (25) of the second butterfly unit (3) in the middle of the cable core. The two adjacent first sidewalls (24) on the lower side of the common suspension line sheath (31) of the second butterfly unit (3) on the upper side respectively coincide and adhere to the two corresponding uppermost first sidewalls (24) of the second butterfly unit (3) in the middle of the cable core. The uppermost corners of the independent suspension line sheaths (41) on the upper sides of the two third butterfly units (4) of the cable core are respectively located in two corresponding right-angled bays (26) on the lower side of the second butterfly unit (3) on the upper side, and the two sides of this corner are respectively adhered to the two sides of the corresponding right-angled bay (26). The first sidewall (24) on the lower left side of the second butterfly unit (3) on the upper side coincides and adheres to the first sidewall (24) on the upper right side of the second butterfly unit (3) on the left side of the cable core. The first sidewall (24) on the lower right side of the second butterfly unit (3) on the upper side coincides and adheres to the first sidewall (24) on the upper left side of the second butterfly unit (3) on the right side of the cable core. One side on the upper side of the common suspension line sheath (31) of the second butterfly unit (3) on the lower side coincides and adheres to the lowermost second sidewall (25) of the second butterfly unit (3) in the middle of the cable core. The two adjacent first sidewalls (24) on the upper side of the common suspension line sheath (31) of the second butterfly unit (3) on the lower side respectively coincide and adhere to the two corresponding lowermost first sidewalls (24) of the second butterfly unit (3) in the middle of the cable core. The lowermost corners of the independent suspension line sheaths (41) on the lower sides of the two third butterfly units (4) of the cable core are respectively located in two corresponding right-angled bays (26) on the upper side of the second butterfly unit (3) on the lower side, and the two sides of this corner are respectively adhered to the two sides of the corresponding right-angled bay (26). The first sidewall (24) on the upper left side of the second butterfly unit (3) on the lower side coincides and adheres to the first sidewall (24) on the lower right side of the second butterfly unit (3) on the left side of the cable core. The first sidewall (24) on the upper right side of the second butterfly unit (3) on the lower side coincides and adheres to the first sidewall (24) on the lower left side of the second butterfly unit (3) on the right side of the cable core.

7. The combined butterfly optical cable according to claim 6, wherein: A protection component (22) is further provided inside the butterfly wing component. The protection component (22) is composed of two first protection component main bodies (221) and a second protection component main body (222). The two ends of the second protection component main body (222) are respectively connected to one end of the two first protection component main bodies (221). One first sidewall (24) is parallel to one first protection component main body (221) of the corresponding protection component (22), and the other first sidewall (24) is parallel to the other first protection component main body (221) of the corresponding protection component (22). The second sidewall (25) is parallel to the second protection component main body (222) of the corresponding protection component (22).

8. The combined butterfly optical cable according to claim 7, characterized in that: The first butterfly unit sheath (21) of the third butterfly unit (4) and two independent messenger wire sheaths (41) are integrally formed.

9. The combined butterfly optical cable according to claim 8, wherein: The common messenger wire sheath (31) of the second butterfly unit (3) and two first butterfly unit sheaths (21) are integrally formed.

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