Bow-type drop cable

Abstract

A bow-type drop cable, comprising an outer jacket (1). An integrally formed first reinforcing unit (3) is provided in the outer jacket (1); the first reinforcing unit (3) is in an I shape; a first slot (32) and a second slot (35) are formed at two respective sides of the first reinforcing unit (3); and a protective member (2) is inserted into each among the first slot (32) and the second slot (35). Each protective member (2) comprises a protective member body (21); an insertion member is fixedly provided on the right side of the protective member body (21); first limiting surfaces (28) are formed on the right side wall of the protective member body (21) above and below the insertion member, respectively; a plurality of first accommodating slots (23) having rightward openings are formed in parallel in the insertion member from top to bottom; at least one signal transmission member is provided in each first accommodating slot (23); and the first limiting surfaces (28) of the protective members (2) on the two sides are attached to the side walls of the first reinforcing unit (3). The present cable has a simple optical cable structure, small attenuation, convenience in construction, good tensile and compressive properties, separable protection units, simultaneous photoelectric transmission, good heat insulation effect, etc.

Description

A butterfly-shaped optical cable Technical Field

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

[0002] Butterfly optical cable is a commonly used home optical cable that plays a unique role in the establishment of smart buildings, digital communities, campus networks, local area networks and other networks.

[0003] Prior art As disclosed in the prior art, CN215641973U discloses an armored butterfly-shaped introduction optical cable, characterized in that it includes a first sheath, an optical fiber unit, a reinforcement, a water-blocking layer, an armor layer and a second sheath, wherein the first sheath is a butterfly-shaped sheath, a number of optical fiber units are arranged in the center of the butterfly sheath, and the two reinforcements are respectively arranged at the left and right ends of the butterfly sheath; the water-blocking layer, the armor layer and the second sheath are sequentially arranged on the periphery of the first sheath from the inside to the outside; bubbles are distributed inside the first sheath and the second sheath; the introduction optical cable also includes a fixing frame, the fixing frame is an I-shaped structure, and the two fixing frames are respectively arranged on the upper and lower sides of the first sheath, and the upper and lower ends of the fixing frame are respectively in contact with the waist of the first sheath and the inner surface of the water-blocking layer. Technical issues

[0004] In the above-mentioned existing technologies, the tensile force is provided with tensile resistance by the reinforcement members inside the butterfly sheath, the upper and lower sides of the butterfly unit have no tensile resistance, and the optical cable is subjected to relatively uneven force; the optical cable has poor compressive resistance and cannot maintain its shape when subjected to force; the optical cable needs to peel off the first sheath, water-blocking layer, armor layer and second sheath during construction, which makes construction inconvenient; peeling off the first sheath, water-blocking layer and armor layer requires destroying the first sheath, water-blocking layer and armor layer; the butterfly sheath is a tight-fitting structure, and the optical fiber attenuation is large. Technical Solutions

[0005] To solve the above problems, the present invention aims to disclose a butterfly-shaped optical fiber introduction cable, which is achieved by adopting the following technical solutions.

[0006] A butterfly-shaped optical fiber drop cable having an outer sheath, characterized in that: an integrally formed first reinforcement unit is provided within the outer sheath, the first reinforcement unit being composed of a first transverse reinforcement component located above, a second transverse reinforcement component located below, and a longitudinal reinforcement component located between the first transverse reinforcement component and the second transverse reinforcement component, the first reinforcement unit being in an I-shape, the longitudinal reinforcement component forming a first insertion slot with the first transverse reinforcement component and the second transverse reinforcement component on the left side of the longitudinal reinforcement component, and the longitudinal reinforcement component forming a second insertion slot with the first transverse reinforcement component and the second transverse reinforcement component on the right side of the longitudinal reinforcement component, and a protective component being respectively inserted into the first insertion slot and the second insertion slot; The protective component includes a protective component body, the left side wall of the protective component body forms a second arc-shaped surface, a plug-in component is fixedly provided on the right side of the protective component body, the right side wall of the protective component body above the plug-in component forms a first limiting surface, and the right side wall of the protective component body below the plug-in component also forms a first limiting surface, and the plug-in components form a plurality of first accommodating grooves opening to the right in parallel from top to bottom, and at least one signal transmission component is provided in the first accommodating groove, the first limiting surface above the plug-in component of the left protective component is in contact with the left side wall of the first transverse reinforcement component, the first limiting surface below the plug-in component of the left protective component is in contact with the left side wall of the second transverse reinforcement component, the first limiting surface above the plug-in component of the right protective component is in contact with the right side wall of the first transverse reinforcement component, and the first limiting surface below the plug-in component of the right protective component is in contact with the right side wall of the second transverse reinforcement component.

[0007] The butterfly-shaped optical cable introduction cable described above is characterized in that the distance from the first limiting surface to the opening of the corresponding first accommodating groove is greater than the depth of the first accommodating groove.

[0008] The butterfly-shaped optical cable introduction described above is characterized in that: the upper part of the left and right side walls of the first transverse reinforcement component is respectively fixed with an elastic limiting component with the outer end bent in an arc downward, and the lower part of the left and right side walls of the second transverse reinforcement component is respectively fixed with an elastic limiting component with the outer end bent in an arc upward, the upper and lower parts of the second curved surface each form a first curved surface that is concentric with the second curved surface and has a radius smaller than the second curved surface, the right end face of the first curved surface and the corresponding first limiting surface are located in the same plane, the sum of the curvatures of the two first curved surfaces is smaller than the curvature of the second curved surface, and the first curved surface is in contact with the inner wall of the corresponding elastic limiting component.

[0009] The butterfly-shaped optical cable introduction described above is characterized in that: a second inclined surface is provided between the inner wall of the elastic limiting component on the left side of the first transverse reinforcement component and the left side wall of the first transverse reinforcement component, a second inclined surface is also provided between the inner wall of the elastic limiting component on the left side of the second transverse reinforcement component and the left side wall of the second transverse reinforcement component, a second inclined surface is provided between the inner wall of the elastic limiting component on the right side of the first transverse reinforcement component and the right side wall of the first transverse reinforcement component, a second inclined surface is also provided between the inner wall of the elastic limiting component on the right side of the second transverse reinforcement component and the right side wall of the second transverse reinforcement component, the distance between the left ends of the two second inclined surfaces on the left side is greater than the distance between the right ends of the two second inclined surfaces on the left side, the distance between the right ends of the two second inclined surfaces on the right side is greater than the distance between the left ends of the two second inclined surfaces on the right side, and a first inclined surface is provided between the first limiting surface and the corresponding first curved surface, which is in contact with the corresponding second inclined surface. Beneficial effects

[0010] The present invention has the following beneficial effects:

[0011] 1. The tight-buffered structure commonly used in butterfly-type lead-in optical cables is not adopted, which avoids the influence of stress generated by the protective structure outside the optical fiber after processing and cooling on the optical fiber, causing excessive attenuation.

[0012] 2. The protection component and the first reinforcement unit are plugged into each other to form protection for the signal transmission component. When taking out the signal transmission component, it is only necessary to pull out the protection component from the first reinforcement unit, which makes construction more convenient.

[0013] 3. The I-shaped first reinforcement unit not only improves the compressive performance and tensile performance of the optical cable, but also plays a role in shaping the optical cable. At the same time, when the cable is pulled, the tension is distributed in the I-shaped first reinforcement unit, making the tension on the cable more uniform.

[0014] 4. Elastic limiting components are provided on both sides of the first reinforcement unit to fix the protective component. When the outer protective layer is damaged, the protective component will not be separated from the first reinforcement unit, thereby preventing the internal optical fiber from being damaged. At the same time, the use of fixing materials such as yarn in the production process is avoided, which saves costs, simplifies production steps, and improves production efficiency.

[0015] 5. The elastic limiting component is elastic. When the protective component is pulled outward with force, the protective component can be taken out. The protective component can be reset and fixed by opening the elastic limiting component without damaging the cable core, which facilitates construction.

[0016] 6. When pressure is applied to the upper and lower sides, since the first limiting surface of the left protective component is located on the left side of the bottom wall of the first accommodating groove, and the first limiting surface of the right protective component is located on the right side of the bottom wall of the first accommodating groove, the ends of the first transverse reinforcing component and the second transverse reinforcing component will not be squeezed into the first accommodating groove, so that the optical cable has higher resistance to lateral pressure.

[0017] 7. The optical cable can transmit optical signals and electrical signals at the same time. When the optical and electrical signals are transmitted on both sides of the longitudinal reinforcement component, they are isolated by the first reinforcement unit, which avoids the heat generated by the electrical unit transmission from affecting the transmission of the optical signal in the optical fiber ribbon.

[0018] 8. The height of the first insertion groove is smaller than the distance between the left ends of the two elastic limiting components on the left, and the height of the second insertion groove is smaller than the distance between the right ends of the two elastic limiting components on the right, so that when the plug-in component passes through the ends of the two elastic limiting components, it will not be restricted by the distance between the ends of the two elastic limiting components, thereby facilitating the connection between the first reinforcement unit and the protective component.

[0019] 9. A first inclined surface is provided. When the main body of the protective component passes through the ends of the two elastic limiting components, the first inclined surface can push the ends of the two elastic limiting components upward and downward to facilitate entry.

[0020] 10. By setting up the fourth receiving groove, the weight of the optical cable is reduced and materials are saved. In addition, optical fibers, optical fiber ribbons or electrical units can be placed in the fourth receiving groove to increase the transmission capacity of optical or electrical signals in the optical cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] FIG1 is a front view of an embodiment 1.

[0022] FIG2 is a schematic diagram of the three-dimensional structure of a section of Implementation Example 1.

[0023] FIG3 is a schematic diagram of the three-dimensional structure of the protection component of implementation example 1.

[0024] FIG4 is a schematic diagram of the three-dimensional structure of the first reinforcing unit of implementation example 1. FIG.

[0025] FIG5 is a front view of implementation example 2.

[0026] FIG6 is a schematic diagram of the three-dimensional structure of a section of Implementation Example 2.

[0027] FIG7 is a schematic diagram of the three-dimensional structure of the protection component of implementation example 2.

[0028] FIG8 is a schematic diagram of the three-dimensional structure of the first reinforcing unit of implementation example 2.

[0029] FIG9 is a front view of implementation example 3.

[0030] Figure 10 is a schematic diagram of the three-dimensional structure of a section of implementation example 4.

[0031] FIG11 is a front view of implementation example 5.

[0032] FIG12 is a schematic diagram of the three-dimensional structure of the protection component of implementation example 6.

[0033] FIG13 is a schematic diagram of the three-dimensional structure of the first reinforcing unit of implementation example 6. FIG.

[0034] FIG14 is a schematic diagram of the three-dimensional structure of the first reinforcing unit of implementation example 7. FIG.

[0035] In the figure: 1. Outer sheath, 2. Protection component, 21. Protection component body, 22. First isolation component, 23. First accommodating groove, 24. Second isolation component, 25. Second accommodating groove, 26. Third isolation component, 27. Second reinforcement component cavity, 28. First limiting surface, 29. First curved surface, 210. Second curved surface, 211. Third accommodating groove, 212. First inclined surface, 3. First reinforcement unit, 31. First transverse reinforcement component, 32. First insertion groove, 33. Longitudinal reinforcement component, 34. Second transverse reinforcement component, 35. Second insertion groove, 36. Elastic limiting component, 38. Second inclined surface, 39. Fourth accommodating groove, 4. Optical fiber, 5. Second reinforcement unit, 6. Optical fiber ribbon, 7. Electrical unit. Best Mode for Carrying Out the Invention

[0036] Implementation Example 1: Please see Figures 1 to 4, a butterfly-shaped optical cable is introduced, which has an outer sheath 1, characterized in that: an integrally formed first reinforcement unit 3 is provided in the outer sheath 1, and the first reinforcement unit 3 is composed of a first transverse reinforcement component 31 located at the top, a second transverse reinforcement component 34 located at the bottom, and a longitudinal reinforcement component 33 located between the first transverse reinforcement component 31 and the second transverse reinforcement component 34, the first transverse reinforcement component 31 and the second transverse reinforcement component 34 are placed in parallel, the longitudinal reinforcement component 33 is perpendicular to the first transverse reinforcement component 31, the longitudinal reinforcement component 33 and the first transverse reinforcement component 31 and the second transverse reinforcement component 34 on the left side of the longitudinal reinforcement component 33 form a first insertion groove 32, the longitudinal reinforcement component 33 and the first transverse reinforcement component 31 and the second transverse reinforcement component 34 on the right side of the longitudinal reinforcement component 33 form a second insertion groove 35, and the first insertion groove 32 and the second insertion groove 35 are respectively connected with a protective component 2; The protective component 2 has a protective component body 21, a second reinforcement component cavity 27 is formed in the protective component body 21, a second reinforcement unit 5 is provided in the second reinforcement component cavity 27, a second arc-shaped surface 210 is formed on the left side wall of the protective component body 21, a plug-in component is fixedly provided on the right side of the protective component body 21, the right side wall of the protective component body 21 above the plug-in component forms a first limiting surface 28, and the right side wall of the protective component body 21 below the plug-in component also forms a first limiting surface 28, the plug-in component is composed of a first isolation component 22 located above, a third isolation component 26 located below and a second isolation component 24 located between the first isolation component 22 and the third isolation component 26, a first accommodating groove 23 is formed between the first isolation component 22 and the second isolation component 24, the second isolation component 24 and the third isolation component 26, a second accommodating groove 25 is formed between the first accommodating groove 23 and the second accommodating groove 25, at least one optical fiber 4 is arranged in the first accommodating groove 23 and the second accommodating groove 25, the first limiting surface 28 above the plug-in component of the left protective component 2 is in contact with the left side wall of the first transverse reinforcement component 31, the first limiting surface 28 below the plug-in component of the left protective component 2 is in contact with the left side wall of the second transverse reinforcement component 34, the first limiting surface 28 above the plug-in component of the right protective component 2 is in contact with the right side wall of the first transverse reinforcement component 31, the first limiting surface 28 below the plug-in component of the right protective component 2 is in contact with the right side wall of the second transverse reinforcement component 34, the distance from the upper first limiting surface 28 to the opening of the first accommodating groove 23 is greater than the depth of the first accommodating groove 23, and the distance from the lower first limiting surface 28 to the opening of the second accommodating groove 25 is greater than the depth of the second accommodating groove 25. Modes for Carrying Out the Invention

[0037] Implementation Example 2: See Figures 5 to 8, a butterfly-shaped optical cable is introduced, having an outer sheath 1, characterized in that: the outer sheath 1 is provided with an integrally formed first reinforcement unit 3, the first reinforcement unit 3 is composed of a first transverse reinforcement component 31 located at the top, a second transverse reinforcement component 34 located at the bottom, and a longitudinal reinforcement component 33 located between the first transverse reinforcement component 31 and the second transverse reinforcement component 34. The first transverse reinforcement component 31 and the second transverse reinforcement component 34 are placed in parallel, the longitudinal reinforcement component 33 is perpendicular to the first transverse reinforcement component 31, and the left and right side walls of the first transverse reinforcement component 31 are An elastic limiting component 36 with an outer end curved downward is fixedly provided on the upper portion, and an elastic limiting component 36 with an outer end curved upward is fixedly provided on the lower portion of the left and right side walls of the second transverse reinforcing component 34. The longitudinal reinforcing component 33 and the first transverse reinforcing component 31 and the second transverse reinforcing component 34 on the left side of the longitudinal reinforcing component 33 form a first insertion groove 32. The longitudinal reinforcing component 33 and the first transverse reinforcing component 31 and the second transverse reinforcing component 34 on the right side of the longitudinal reinforcing component 33 form a second insertion groove 35. A protective component 2 is respectively inserted into the first insertion groove 32 and the second insertion groove 35.The protective component 2 has a protective component body 21, a second reinforcement cavity 27 is formed in the protective component body 21, a second reinforcement unit 5 is provided in the second reinforcement cavity 27, a second arcuate surface 210 is formed on the left side wall of the protective component body 21, and the upper and lower parts of the second arcuate surface 210 each form a first arcuate surface 29 which is concentric with the second arcuate surface 210 and has a radius smaller than the second arcuate surface 210, the right end surface of the first arcuate surface 29 and the corresponding first limiting surface 28 are located in the same plane, and the two first arcuate surfaces The sum of the radians of 29 is smaller than the radian of the second curved surface 210. The first curved surface 29 is fitted with the inner wall of the corresponding elastic limiting component 36. A plug-in component is fixed on the right side of the protective component body 21. The right side wall of the protective component body 21 above the plug-in component forms a first limiting surface 28. The right side wall of the protective component body 21 below the plug-in component also forms a first limiting surface 28. The plug-in component is composed of the first isolation component 22 located above, the third isolation component 26 located below, and the first isolation component 22 and the third isolation component 26 located below. The second isolation member 24 is located between the three isolation members 26. A first receiving slot 23 is formed between the first isolation member 22 and the second isolation member 24, and a second receiving slot 25 is formed between the second isolation member 24 and the third isolation member 26. At least one optical fiber 4 is disposed in each of the first receiving slot 23 and the second receiving slot 25. The first limiting surface 28 above the plug-in member of the left protective member 2 aligns with the left side wall of the first transverse reinforcing member 31, while the first limiting surface 28 below the plug-in member of the left protective member 2 aligns with the left side wall of the second transverse reinforcing member 34. The first limiting surface 28 above the plug-in member of the right protective member 2 aligns with the right side wall of the first transverse reinforcing member 31, while the first limiting surface 28 below the plug-in member of the right protective member 2 aligns with the right side wall of the second transverse reinforcing member 34. The distance from the upper first limiting surface 28 to the opening of the first receiving slot 23 is greater than the depth of the first receiving slot 23, and the distance from the lower first limiting surface 28 to the opening of the second receiving slot 25 is greater than the depth of the second receiving slot 25.

[0038] Compared with embodiment 1, the elastic limiting components 36 on both sides of the first reinforcement unit 3 in this embodiment can fix the protective component 2. When the outer sheath 1 is damaged, the protective component 2 will not be separated from the first reinforcement unit 3, thereby protecting the internal optical fiber 4 from damage, avoiding the use of fixing materials such as yarn during the production process, saving costs, simplifying the production steps, and improving production efficiency; and the elastic limiting components 36 are elastic. When the protective component 2 is pulled outward with force, the protective component 2 can be taken out, and the elastic limiting components 36 can be opened to reset and fix the protective component 2 without damaging the cable core, which facilitates construction; when the upper and lower sides are subjected to pressure, the first limiting surface 28 of the left protective component 2 is located on the left side of the bottom wall of the first accommodating groove 23 and the second accommodating groove 25, and the first limiting surface 28 of the right protective component 2 is located on the right side of the bottom wall of the first accommodating groove 23 and the second accommodating groove 25, and the ends of the first transverse reinforcing component 31 and the second transverse reinforcing component 34 will not be squeezed into the first accommodating groove 23 and the second accommodating groove 25, so that the optical cable has higher lateral pressure resistance.

[0039] Implementation Example 3: See Figure 9, and refer to Figures 7 and 8. A butterfly-shaped optical cable is introduced, having an outer sheath 1, characterized in that: an integrally formed first reinforcement unit 3 is provided in the outer sheath 1, the first reinforcement unit 3 is composed of a first transverse reinforcement component 31 located above, a second transverse reinforcement component 34 located below, and a longitudinal reinforcement component 33 located between the first transverse reinforcement component 31 and the second transverse reinforcement component 34. The first transverse reinforcement component 31 and the second transverse reinforcement component 34 are placed in parallel, the longitudinal reinforcement component 33 is perpendicular to the first transverse reinforcement component 31, and the upper part of the left and right side walls of the first transverse reinforcement component 31 is respectively provided with a downwardly curved outer end. An elastic limiting component 36 is fixedly provided at the lower portion of the left and right side walls of the second transverse reinforcing component 34, and an elastic limiting component 36 with an outer end curved upward is fixedly provided at the lower portion of the left and right side walls of the second transverse reinforcing component 34, and an elastic limiting component 36 with an outer end curved upward is fixedly provided at the lower portion of the left and right side walls of the second transverse reinforcing component 34, the longitudinal reinforcing component 33 and the first transverse reinforcing component 31 and the second transverse reinforcing component 34 on the left side form a first insertion groove 32, and the longitudinal reinforcing component 33 and the first transverse reinforcing component 31 and the second transverse reinforcing component 34 on the right side of the longitudinal reinforcing component 33 form a second insertion groove 35, and a protective component 2 is respectively inserted into the first insertion groove 32 and the second insertion groove 35;The protective component 2 has a protective component body 21, a second reinforcement cavity 27 is formed in the protective component body 21, a second reinforcement unit 5 is provided in the second reinforcement cavity 27, a second arcuate surface 210 is formed on the left side wall of the protective component body 21, and the upper and lower parts of the second arcuate surface 210 each form a first arcuate surface 29 that is concentric with the second arcuate surface 210 and has a radius smaller than the second arcuate surface 210, the right end surface of the first arcuate surface 29 and the corresponding first limiting surface 28 are located in the same plane, and the curvature of the two first arcuate surfaces 29 is The sum of the curvature of the first arc surface 29 is smaller than that of the second arc surface 210. The first arc surface 29 is fitted with the inner wall of the corresponding elastic limiting component 36. A plug-in component is fixed on the right side of the protective component body 21. The right side wall of the protective component body 21 above the plug-in component forms a first limiting surface 28. The right side wall of the protective component body 21 below the plug-in component also forms a first limiting surface 28. The plug-in component is composed of the first isolation component 22 located above, the third isolation component 26 located below, and the first isolation component 22 and the third isolation component 26 located between them. The left protective component 2 is composed of a second isolation component 24, a first accommodating groove 23 is formed between the first isolation component 22 and the second isolation component 24, and a second accommodating groove 25 is formed between the second isolation component 24 and the third isolation component 26. At least one optical fiber ribbon 6 is arranged in the first accommodating groove 23 and the second accommodating groove 25, and the optical fiber ribbon 6 is formed by combining at least one optical fiber 4. The first limiting surface 28 above the plug-in component of the left protective component 2 is in contact with the left side wall of the first transverse reinforcing component 31, the first limiting surface 28 below the plug-in component of the left protective component 2 is in contact with the left side wall of the second transverse reinforcing component 34, the first limiting surface 28 above the plug-in component of the right protective component 2 is in contact with the right side wall of the first transverse reinforcing component 31, and the first limiting surface 28 below the plug-in component of the right protective component 2 is in contact with the right side wall of the second transverse reinforcing component 34. The distance from the upper first limiting surface 28 to the opening of the first accommodating groove 23 is greater than the depth of the first accommodating groove 23, and the distance from the lower first limiting surface 28 to the opening of the second accommodating groove 25 is greater than the depth of the second accommodating groove 25. ;

[0040] Implementation Example 4: See FIG10, and refer to FIG7 and FIG8, a butterfly-shaped optical cable is introduced, which has an outer sheath 1, characterized in that: the outer sheath 1 is provided with an integrally formed first reinforcement unit 3, the first reinforcement unit 3 is composed of a first transverse reinforcement component 31 located above, a second transverse reinforcement component 34 located below, and a longitudinal reinforcement component 33 located between the first transverse reinforcement component 31 and the second transverse reinforcement component 34. The first transverse reinforcement component 31 and the second transverse reinforcement component 34 are placed in parallel, the longitudinal reinforcement component 33 is perpendicular to the first transverse reinforcement component 31, and the left and right sides of the first transverse reinforcement component 31 are connected. An elastic limiting component 36 with an outer end curved downward is fixedly provided on the upper portion of each side wall. An elastic limiting component 36 with an outer end curved upward is fixedly provided on the lower portion of the left and right side walls of the second transverse reinforcing component 34. The longitudinal reinforcing component 33 and the first transverse reinforcing component 31 and the second transverse reinforcing component 34 on the left side of the longitudinal reinforcing component 33 form a first insertion groove 32. The longitudinal reinforcing component 33 and the first transverse reinforcing component 31 and the second transverse reinforcing component 34 on the right side of the longitudinal reinforcing component 33 form a second insertion groove 35. A protective component 2 is respectively inserted into the first insertion groove 32 and the second insertion groove 35.The protective component 2 has a protective component body 21, a second reinforcement cavity 27 is formed in the protective component body 21, a second reinforcement unit 5 is provided in the second reinforcement cavity 27, a second arcuate surface 210 is formed on the left side wall of the protective component body 21, and the upper and lower parts of the second arcuate surface 210 each form a first arcuate surface 29 which is concentric with the second arcuate surface 210 and has a radius smaller than the second arcuate surface 210, the right end face of the first arcuate surface 29 and the corresponding first limiting surface 28 are located in the same plane, the sum of the curvatures of the two first arcuate surfaces 29 is smaller than the curvature of the second arcuate surface 210, and the first arcuate surface 29 is provided with a plurality of arcuate surfaces 29, and the second arcuate surface 210 is provided with a plurality of arcuate surfaces 29. The arcuate surface 29 is fitted with the inner wall of the corresponding elastic limiting component 36. A plug-in component is fixed on the right side of the protective component body 21. The right side wall of the protective component body 21 above the plug-in component forms a first limiting surface 28. The right side wall of the protective component body 21 below the plug-in component also forms a first limiting surface 28. The plug-in component is composed of a first isolation component 22 located above, a third isolation component 26 located below, and a second isolation component 24 located between the first isolation component 22 and the third isolation component 26. A first isolation component 22 is formed between the second isolation component 24. The accommodating groove 23, a second accommodating groove 25 is formed between the second isolating component 24 and the third isolating component 26. At least one optical fiber ribbon 6 is provided in the first accommodating groove 23 and the second accommodating groove 25 of the left protective component 2. The optical fiber ribbon 6 is formed by combining at least one optical fiber 4. The first accommodating groove 23 and the second accommodating groove 25 of the right protective component 2 are provided with at least one ribbon-shaped electrical unit 7. The electrical unit 7 is composed of a conductor and an insulating layer extruded outside the conductor. The first limiting surface 28 above the plug-in component of the left protective component 2 is in contact with the left side wall of the first transverse reinforcing component 31. The first limiting surface 28 below the plug-in component of the side protection component 2 abuts the left side wall of the second transverse reinforcement component 34. The first limiting surface 28 above the plug-in component of the right protection component 2 abuts the right side wall of the first transverse reinforcement component 31. The first limiting surface 28 below the plug-in component of the right protection component 2 abuts the right side wall of the second transverse reinforcement component 34. The distance from the upper first limiting surface 28 to the opening of the first receiving groove 23 is greater than the depth of the first receiving groove 23, and the distance from the lower first limiting surface 28 to the opening of the second receiving groove 25 is greater than the depth of the second receiving groove 25.

[0041] In this embodiment, one side of the optical cable can transmit optical signals, and the other side can transmit electrical signals, and the optical fiber ribbon 6 and the electrical unit 7 are isolated by the first reinforcement unit 3, thereby preventing the heat generated during transmission of the electrical unit 7 from affecting the transmission of the optical signal in the optical fiber ribbon 6.

[0042] Implementation Example 5: See FIG11, and refer to FIG7 and FIG8, a butterfly-shaped optical cable is introduced, which has an outer sheath 1, characterized in that: the outer sheath 1 is provided with an integrally formed first reinforcement unit 3, the first reinforcement unit 3 is composed of a first transverse reinforcement component 31 located above, a second transverse reinforcement component 34 located below, and a longitudinal reinforcement component 33 located between the first transverse reinforcement component 31 and the second transverse reinforcement component 34. The first transverse reinforcement component 31 and the second transverse reinforcement component 34 are placed in parallel, the longitudinal reinforcement component 33 is perpendicular to the first transverse reinforcement component 31, and the left and right sides of the first transverse reinforcement component 31 are connected. An elastic limiting component 36 with an outer end curved downward is fixedly provided on the upper portion of each side wall. An elastic limiting component 36 with an outer end curved upward is fixedly provided on the lower portion of the left and right side walls of the second transverse reinforcing component 34. The longitudinal reinforcing component 33 and the first transverse reinforcing component 31 and the second transverse reinforcing component 34 on the left side of the longitudinal reinforcing component 33 form a first insertion groove 32. The longitudinal reinforcing component 33 and the first transverse reinforcing component 31 and the second transverse reinforcing component 34 on the right side of the longitudinal reinforcing component 33 form a second insertion groove 35. A protective component 2 is respectively inserted into the first insertion groove 32 and the second insertion groove 35.The protective component 2 has a protective component body 21, a second reinforcement cavity 27 is formed in the protective component body 21, a second reinforcement unit 5 is provided in the second reinforcement cavity 27, a second arcuate surface 210 is formed on the left side wall of the protective component body 21, and the upper and lower parts of the second arcuate surface 210 each form a first arcuate surface 29 which is concentric with the second arcuate surface 210 and has a radius smaller than the second arcuate surface 210, the right end face of the first arcuate surface 29 and the corresponding first limiting surface 28 are located in the same plane, the sum of the curvatures of the two first arcuate surfaces 29 is smaller than the curvature of the second arcuate surface 210, and the first arcuate surface 29 and the corresponding elastic limiting surface are located in the same plane. The inner side wall of the positioning component 36 is fitted, and a plug-in component is fixed on the right side of the protective component body 21. The right side wall of the protective component body 21 above the plug-in component forms a first limiting surface 28, and the right side wall of the protective component body 21 below the plug-in component also forms a first limiting surface 28. The plug-in component is composed of a first isolation component 22 located above, a third isolation component 26 located below, and two second isolation components 24 located between the first isolation component 22 and the third isolation component 26. A first accommodating groove 23 is formed between the first isolation component 22 and the second isolation component 24, and the second isolation component 24 and the third isolation component 26 forms a second receiving groove 25, and a third receiving groove 211 is formed between the two second isolation parts 24. At least one optical fiber ribbon 6 is provided in the first receiving groove 23, the second receiving groove 25 and the third receiving groove 211 of the left protective part 2. The optical fiber ribbon 6 is formed by combining at least one optical fiber 4. The first receiving groove 23, the second receiving groove 25 and the third receiving groove 211 of the right protective part 2 are provided with at least one ribbon-shaped electrical unit 7. The electrical unit 7 is composed of a conductor and an insulating layer extruded outside the conductor. The first limiting surface 28 above the plug-in component of the left protective part 2 is connected to the first transverse reinforcement portion. The left side wall of the first accommodating groove 23 is in contact with the left side wall of the second transverse reinforcing groove 31. The first limiting surface 28 below the plug-in component of the left protective component 2 is in contact with the left side wall of the second transverse reinforcing groove 34. The first limiting surface 28 above the plug-in component of the right protective component 2 is in contact with the right side wall of the first transverse reinforcing groove 31. The first limiting surface 28 below the plug-in component of the right protective component 2 is in contact with the right side wall of the second transverse reinforcing groove 34. The distance from the upper first limiting surface 28 to the opening of the first accommodating groove 23 is greater than the depth of the first accommodating groove 23. The distance from the lower first limiting surface 28 to the opening of the second accommodating groove 25 is greater than the depth of the second accommodating groove 25.

[0043] Compared with embodiment 4, this embodiment has a greater number of optical fiber ribbons 6 and electrical units 7 for transmission, and a greater signal transmission volume.

[0044] Implementation Example 6: See Figures 12 and 13, and refer to Figures 7 and 8. A butterfly-shaped optical cable is introduced, having an outer sheath 1, characterized in that: an integrally formed first reinforcement unit 3 is provided in the outer sheath 1, the first reinforcement unit 3 is composed of a first transverse reinforcement component 31 located above, a second transverse reinforcement component 34 located below, and a longitudinal reinforcement component 33 located between the first transverse reinforcement component 31 and the second transverse reinforcement component 34. The first transverse reinforcement component 31 and the second transverse reinforcement component 34 are placed in parallel, and the longitudinal reinforcement component 33 is parallel to the first transverse reinforcement component 31. Vertically, an elastic limiting component 36 with an outer end curved downward is fixedly provided on the upper part of the left and right side walls of the first transverse reinforcing component 31, and an elastic limiting component 36 with an outer end curved upward is fixedly provided on the lower part of the left and right side walls of the second transverse reinforcing component 34. A second inclined surface 38 is provided between the inner wall of the elastic limiting component 36 on the left side of the first transverse reinforcing component 31 and the left side wall of the first transverse reinforcing component 31, and a second inclined surface 38 is also provided between the inner wall of the elastic limiting component 36 on the left side of the second transverse reinforcing component 34 and the left side wall of the second transverse reinforcing component 34. A second inclined surface 38 is provided between the inner wall of the elastic limiting component 36 on the right side of a transverse reinforcing component 31 and the right side wall of the first transverse reinforcing component 31, and a second inclined surface 38 is also provided between the inner wall of the elastic limiting component 36 on the right side of the second transverse reinforcing component 34 and the right side wall of the second transverse reinforcing component 34. The distance between the left ends of the two second inclined surfaces 38 on the left side is greater than the distance between the right ends of the two second inclined surfaces 38 on the left side, and the distance between the right ends of the two second inclined surfaces 38 on the right side is greater than the distance between the left ends of the two second inclined surfaces 38 on the right side. The first transverse reinforcing member 31 and the second transverse reinforcing member 34 on the left side of the longitudinal reinforcing member 33 form a first insertion slot 32. The longitudinal reinforcing member 33 and the first transverse reinforcing member 31 and the second transverse reinforcing member 34 on the right side of the longitudinal reinforcing member 33 form a second insertion slot 35. The height of the first insertion slot 32 is less than the distance between the left ends of the two elastic limiting members 36 on the left side, and the height of the second insertion slot 35 is less than the distance between the right ends of the two elastic limiting members 36 on the right side. A protective member 2 is respectively inserted into the first insertion slot 32 and the second insertion slot 35.The protective component 2 has a protective component body 21, a second reinforcement cavity 27 is formed in the protective component body 21, a second reinforcement unit 5 is provided in the second reinforcement cavity 27, a second arcuate surface 210 is formed on the left side wall of the protective component body 21, and the upper and lower parts of the second arcuate surface 210 each form a first arcuate surface 29 which is concentric with the second arcuate surface 210 and has a radius smaller than the second arcuate surface 210, the right end face of the first arcuate surface 29 and the corresponding first limiting surface 28 are located in the same plane, the sum of the curvatures of the two first arcuate surfaces 29 is smaller than the curvature of the second arcuate surface 210, and the first arcuate surface 29 and the corresponding elastic limiting surface are located in the same plane. The inner side wall of the positioning component 36 is fitted, and a plug-in component is fixed on the right side of the protective component body 21. The right side wall of the protective component body 21 above the plug-in component forms a first limiting surface 28, and the right side wall of the protective component body 21 below the plug-in component also forms a first limiting surface 28. A first inclined surface 212 is provided between the first limiting surface 28 and the corresponding first arc-shaped surface 29, which is fitted with the corresponding second inclined surface 38. The plug-in component is composed of a first isolation component 22 located above, a third isolation component 26 located below, and a second isolation component 24 located between the first isolation component 22 and the third isolation component 26. The first A first receiving groove 23 is formed between the isolation component 22 and the second isolation component 24, and a second receiving groove 25 is formed between the second isolation component 24 and the third isolation component 26. At least one optical fiber ribbon 6 is provided in the first receiving groove 23 and the second receiving groove 25 of the left protective component 2. The optical fiber ribbon 6 is formed by combining at least one optical fiber 4. At least one ribbon-shaped electrical unit 7 is provided in the first receiving groove 23 and the second receiving groove 25 of the right protective component 2. The electrical unit 7 is composed of a conductor and an insulating layer extruded outside the conductor. The first limiting surface 28 above the plug-in component of the left protective component 2 is connected to the first transverse reinforcement The left side wall of the component 31 is in contact with each other. The first limiting surface 28 below the plug-in component of the left protective component 2 is in contact with the left side wall of the second transverse reinforcing component 34. The first limiting surface 28 above the plug-in component of the right protective component 2 is in contact with the right side wall of the first transverse reinforcing component 31. The first limiting surface 28 below the plug-in component of the right protective component 2 is in contact with the right side wall of the second transverse reinforcing component 34. The distance from the upper first limiting surface 28 to the opening of the first receiving groove 23 is greater than the depth of the first receiving groove 23. The distance from the lower first limiting surface 28 to the opening of the second receiving groove 25 is greater than the depth of the second receiving groove 25.

[0045] Compared with embodiment 5, the height of the first insertion slot 32 in this embodiment is smaller than the distance between the left ends of the two elastic limiting components 36 on the left, and the height of the second insertion slot 35 is smaller than the distance between the right ends of the two elastic limiting components 36 on the right, so that the plug-in component will not be restricted by the distance between the ends of the two elastic limiting components 36 when passing through the ends of the two elastic limiting components 36, thereby facilitating the connection between the first reinforcing unit and the protective component; a first inclined surface 212 is provided, and when the protective component body 21 passes through the ends of the two elastic limiting components 36, the first inclined surface 212 can be used to push the ends of the two elastic limiting components 36 to the upper and lower sides for easy entry.

[0046] Implementation Example 7: See Figure 14, and refer to Figures 1 to 3, a butterfly-shaped optical cable is introduced, having an outer sheath 1, characterized in that: an integrally formed first reinforcement unit 3 is provided in the outer sheath 1, the first reinforcement unit 3 is composed of a first transverse reinforcement component 31 located at the top, a second transverse reinforcement component 34 located at the bottom, and a longitudinal reinforcement component 33 located between the first transverse reinforcement component 31 and the second transverse reinforcement component 34, the first transverse reinforcement component 31 and the second transverse reinforcement component 34 are placed in parallel, the longitudinal reinforcement component 33 is perpendicular to the first transverse reinforcement component 31, and the longitudinal reinforcement component 33 forms a first insertion groove with the first transverse reinforcement component 31 and the second transverse reinforcement component 34 on the left side of the longitudinal reinforcement component 33 32, the longitudinal reinforcement component 33 and the first transverse reinforcement component 31 and the second transverse reinforcement component 34 on the right side of the longitudinal reinforcement component 33 form a second insertion groove 35, the first transverse reinforcement component 31 is formed with an opening extending upward and downward to a fourth accommodating groove 39 in the longitudinal reinforcement component 33, the second transverse reinforcement component 34 is formed with an opening downward and extending downward to a fourth accommodating groove 39 in the longitudinal reinforcement component 33, the first insertion groove 32 and the second insertion groove 35 are respectively plugged with a protective component 2; the protective component 2 has a protective component body 21, a second reinforcement component cavity 27 is formed in the protective component body 21, a second reinforcement unit 5 is provided in the second reinforcement component cavity 27, and the left side wall of the protective component body 21 is shaped A second arc-shaped surface 210 is formed, and a plug-in component is fixedly provided on the right side of the protective component body 21. The right side wall of the protective component body 21 above the plug-in component forms a first limiting surface 28, and the right side wall of the protective component body 21 below the plug-in component also forms a first limiting surface 28. The plug-in component is composed of a first isolation component 22 located above, a third isolation component 26 located below, and a second isolation component 24 located between the first isolation component 22 and the third isolation component 26. A first receiving groove 23 is formed between the first isolation component 22 and the second isolation component 24, and a second receiving groove 25 is formed between the second isolation component 24 and the third isolation component 26. There is at least one An optical fiber 4, the first limiting surface 28 above the plug-in component of the left protective component 2 is in contact with the left side wall of the first transverse reinforcement component 31, the first limiting surface 28 below the plug-in component of the left protective component 2 is in contact with the left side wall of the second transverse reinforcement component 34, the first limiting surface 28 above the plug-in component of the right protective component 2 is in contact with the right side wall of the first transverse reinforcement component 31, the first limiting surface 28 below the plug-in component of the right protective component 2 is in contact with the right side wall of the second transverse reinforcement component 34, the distance from the upper first limiting surface 28 to the opening of the first accommodating groove 23 is greater than the depth of the first accommodating groove 23, and the distance from the lower first limiting surface 28 to the opening of the second accommodating groove 25 is greater than the depth of the second accommodating groove 25.

[0047] In this embodiment, by providing the fourth receiving groove 39, the weight of the optical cable is reduced and materials are saved. In addition, the optical fiber 4 or optical fiber ribbon 6 or electrical unit 7 can be placed in the fourth receiving groove 39 to increase the transmission capacity of the optical signal or electrical signal in the optical cable.

[0048] The butterfly-shaped drop optical cable described in any of the above embodiments is characterized in that the optical fiber 4 is a single-mode optical fiber or a multi-mode optical fiber.

[0049] The butterfly-shaped drop optical cable described in any of the above embodiments is characterized in that the material of the protective component 2 is flame-retardant polyolefin.

[0050] The butterfly-shaped drop optical cable described in any of the above implementation examples is characterized in that the second reinforcement unit 5 is a steel wire.

[0051] The butterfly-shaped drop optical cable described in any of the above embodiments is characterized in that the material of the outer sheath 1 is flame-retardant polyolefin.

[0052] The butterfly-shaped drop optical cable described in any of the above embodiments is characterized in that the first transverse reinforcement member 31 and the second transverse reinforcement member 34 have the same length.

[0053] In the butterfly-shaped optical cable introduced in any of the above embodiments, the bottom walls of the first accommodating groove 23 and the second accommodating groove 25 refer to the inner walls opposite to the openings of the first accommodating groove 23 and the second accommodating groove 25 .

[0054] In the present invention, the tight sleeve structure commonly used in butterfly-shaped lead-in optical cables is not adopted, thereby avoiding the influence of the stress generated by the protective structure outside the optical fiber after processing and cooling on the corresponding optical fiber; the protective component 2 and the first reinforcing unit 3 are plugged into each other to form protection for the optical fiber 4 or optical fiber ribbon 6 or electrical unit 7. When taking out the optical fiber 4 or optical fiber ribbon 6 or electrical unit 7, it is only necessary to pull out the protective component 2, which makes construction more convenient; the I-shaped first reinforcing unit 3 not only improves the compressive performance and tensile performance of the optical cable, but also plays a role in shaping the optical cable. At the same time, when subjected to tension, the tension is distributed in the I-shaped first reinforcing unit 3, so that the tension on the optical cable is more uniform. Industrial Applicability

[0055] The present invention has been implemented and has industrial applicability.

Claims

1. A butterfly-shaped optical cable having an outer sheath (1), characterized in that: The outer protective layer (1) is provided with an integrally formed first reinforcement unit (3), the first reinforcement unit (3) being composed of a first transverse reinforcement component (31) located at the top, a second transverse reinforcement component (34) located at the bottom, and a longitudinal reinforcement component (33) located between the first transverse reinforcement component (31) and the second transverse reinforcement component (34), the first reinforcement unit (3) being in an I-shape, the longitudinal reinforcement component (33) and the first transverse reinforcement component (31) and the second transverse reinforcement component (34) on the left side of the longitudinal reinforcement component (33) forming a first insertion groove (32), the longitudinal reinforcement component (33) and the first transverse reinforcement component (31) and the second transverse reinforcement component (34) on the right side of the longitudinal reinforcement component (33) forming a second insertion groove (35), the first insertion groove (32) and the second insertion groove (35) being respectively plugged with a protective component (2); the protective component (2) having a protective component body (21), the left side wall of the protective component body (21) forming a second arcuate surface (210), the protective component body (21) A plug-in component is fixedly arranged on the right side, a right side wall of the protective component body (21) above the plug-in component forms a first limiting surface (28), and a right side wall of the protective component body (21) below the plug-in component also forms a first limiting surface (28). The plug-in components are arranged in parallel from top to bottom to form a plurality of first accommodating grooves (23) opening to the right, and at least one signal transmission component is arranged in the first accommodating groove (23). The first limiting surface (28) above the plug-in component of the left protective component (2) and the first transverse reinforcing component (31) are connected to each other. The left side wall is in contact with each other, the first limiting surface (28) below the plug-in component of the left protection component (2) is in contact with the left side wall of the second transverse reinforcing component (34), the first limiting surface (28) above the plug-in component of the right protection component (2) is in contact with the right side wall of the first transverse reinforcing component (31), and the first limiting surface (28) below the plug-in component of the right protection component (2) is in contact with the right side wall of the second transverse reinforcing component (34); the optical fiber (4) is a single-mode optical fiber or a multi-mode optical fiber; and the second reinforcing unit (5) is a steel wire.

2. The butterfly-shaped optical cable according to claim 1, characterized in that: The material of the protective component (2) is flame-retardant polyolefin.

3. A butterfly-shaped optical cable according to claim 1 or claim 2, characterized in that: An elastic limiting component (36) with an outer end bent in an arc shape downward is fixedly provided on the upper part of the left and right side walls of the first transverse reinforcing component (31), and an elastic limiting component (36) with an outer end bent in an arc shape upward is fixedly provided on the lower part of the left and right side walls of the second transverse reinforcing component (34). The upper part and the lower part of the second arc surface (210) each form a first arc surface (29) which is concentric with the second arc surface (210) and has a radius smaller than the second arc surface (210). The right end surface of the first arc surface (29) and the corresponding first limiting surface (28) are located in the same plane. The sum of the curvatures of the two first arc surfaces (29) is smaller than the curvature of the second arc surface (210). The first arc surface (29) fits with the inner wall of the corresponding elastic limiting component (36).

4. The butterfly-shaped optical cable according to claim 3, characterized in that: A second inclined surface (38) is provided between the inner wall of the elastic limiting component (36) on the left side of the first transverse reinforcing component (31) and the left side wall of the first transverse reinforcing component (31); a second inclined surface (38) is also provided between the inner wall of the elastic limiting component (36) on the left side of the second transverse reinforcing component (34) and the left side wall of the second transverse reinforcing component (34); a second inclined surface (38) is provided between the inner wall of the elastic limiting component (36) on the right side of the first transverse reinforcing component (31) and the right side wall of the first transverse reinforcing component (31); and the second transverse reinforcing component (34) is provided between the inner wall of the elastic limiting component (36) on the right side of the first transverse reinforcing component (31) and the right side wall of the first transverse reinforcing component (31). 4) A second inclined surface (38) is also provided between the inner wall of the elastic limiting component (36) on the right side and the right side wall of the second transverse reinforcing component (34); the distance between the left ends of the two second inclined surfaces (38) on the left side is greater than the distance between the right ends of the two second inclined surfaces (38) on the left side; the distance between the right ends of the two second inclined surfaces (38) on the right side is greater than the distance between the left ends of the two second inclined surfaces (38) on the right side; and a first inclined surface (212) is provided between the first limiting surface (28) and the corresponding first arcuate surface (29) to fit the corresponding second inclined surface (38).

5. A butterfly-shaped optical cable according to claim 1 or claim 2 or claim 4, characterized in that: The signal transmission component is an optical fiber (4) or an optical fiber ribbon (6) or an electrical unit (7).

6. The butterfly-shaped optical cable according to claim 5, characterized in that: The signal transmission component in the first receiving groove (23) of the left protective component (2) is an optical fiber (4) or an optical fiber ribbon (6), and the signal transmission component in the first receiving groove (23) of the right protective component (2) is an electrical unit (7).

7. A butterfly-shaped optical cable according to claim 1 or claim 2 or claim 4 or claim 6, characterized in that: A second reinforcement component cavity (27) is formed in the protection component body (21), and a second reinforcement unit (5) is arranged in the second reinforcement component cavity (27).

8. The butterfly-shaped optical cable according to claim 7, characterized in that: The first transverse reinforcing component (31) and the second transverse reinforcing component (34) are placed in parallel and have the same length, and the longitudinal reinforcing component (33) is perpendicular to the first transverse reinforcing component (31).

9. The butterfly-shaped optical cable according to claim 8, characterized in that: The first transverse reinforcing component (31) is formed with a fourth receiving groove (39) opening upward and extending downward to the longitudinal reinforcing component (33), and the second transverse reinforcing component (34) is formed with a fourth receiving groove (39) opening downward and extending downward to the longitudinal reinforcing component (33).

10. The butterfly-shaped optical cable according to claim 9, characterized in that: An optical fiber (4) or an optical fiber ribbon (6) or an electrical unit (7) is arranged in the fourth containing groove (39).

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