Ferrule-based optical fiber cable assembly

Abstract

The application relates to the technical field of optical cables, in particular to a butterfly-shaped lead-in optical cable structure based on a fiber composite structure, which comprises a butterfly-shaped optical cable, the butterfly-shaped optical cable comprises a protection mechanism and a connecting mechanism, the protection mechanism and the connecting mechanism are connected with each other, the protection mechanism comprises a first sheath, an inner wall of the first sheath is fixedly connected with a first insulating sleeve, an inner wall of the first insulating sleeve is fixedly connected with a first optical fiber, an outer wall of the top of the first sheath is fixedly connected with a first flange, the connecting mechanism comprises a second sheath, an inner wall of the second sheath is fixedly connected with a second insulating sleeve, after the first sheath and the second sheath are selectively or separately stripped, the first flanges of the first sheath and the second sheath are connected with third sealing grooves to realize upper and lower connection, left and right connection can be realized through the first sealing strips and the second sealing strips on the corresponding sides, and then the mutual separation and connection of the first sheath and the second sheath are realized.

Description

Technical Field

[0001] This invention relates to the field of optical cable technology, and more specifically, to a butterfly-shaped drop cable structure based on an optical fiber composite structure. Background Technology

[0002] The butterfly structure has a symmetrical butterfly wing-shaped cross-section. It is thin, flat and symmetrical, and can be adapted to various wiring scenarios such as overhead, wall-mounted and entry-level cabling. It has low wind resistance and occupies little space, making it flexible and convenient to deploy. The wing-edge design allows for quick and easy stripping of the sheath with tools, simplifying splicing operations and improving construction efficiency. At the same time, the flat structure can disperse bending stress, enhance the bending resistance of the optical cable, and effectively protect the internal fiber core or conductor and other transmission media.

[0003] There are many existing technologies for butterfly-shaped optical cables, such as:

[0004] Chinese Patent Publication No. CN113284654A discloses a butterfly-shaped indoor composite optical cable that is easy to install. It includes: an optical cable enclosure, a first conductor, a second conductor, an optical fiber, and a loose tube. The first and second conductors are spaced vertically apart within the optical cable enclosure. A through-hole is provided in the optical cable enclosure between the first and second conductors. The loose tube is disposed within the optical cable enclosure and located on both sides of the through-hole. The optical fiber is disposed within the loose tube. A first tear groove corresponding to the first conductor is recessed at the top of the optical cable enclosure. A second tear groove corresponding to the second conductor is recessed at the bottom of the optical cable enclosure. Third tear grooves corresponding to the loose tube are recessed on both sides of the optical cable enclosure.

[0005] It can be seen that the structure of the central through hole and the first, second and third tear grooves enables independent and selective stripping of the power conductor and the optical fiber unit.

[0006] However, in data center server rooms, due to the extremely frequent mounting, unmounting, replacement, and relocation of equipment such as servers and switches, the structure of optical cables undergoes irreversible changes when they are selectively or independently stripped. This prevents the optical cables from being flexibly reassembled or expanded in capacity as needed during subsequent operation and maintenance, thereby reducing the flexibility of optical cable usage. Summary of the Invention

[0007] This invention provides a butterfly-shaped drop cable structure based on an optical fiber composite structure. When the first sheath and the second sheath are selectively or individually stripped, they can be connected vertically through the first flange and the third sealing groove, or horizontally through the first sealing strip and the second sealing strip on the corresponding side. This solves the problem mentioned in the background art, namely: the structure of the optical cable is irreversible after selective or individual stripping, and subsequent operation and maintenance cannot be flexibly reorganized or expanded as needed.

[0008] To achieve the above objectives, the butterfly-shaped optical cable structure based on an optical fiber composite structure includes a butterfly-shaped optical cable, which includes a protective mechanism and a connecting mechanism, and the protective mechanism and the connecting mechanism are interconnected.

[0009] The protective mechanism includes a first sheath, a first insulating sleeve fixedly connected to the inner wall of the first sheath, a first optical fiber fixedly connected to the inner wall of the first insulating sleeve, and a first flange fixedly connected to the top outer wall of the first sheath.

[0010] The connection mechanism includes a second sheath, a second insulating sleeve fixedly connected to the inner wall of the second sheath, a second optical fiber fixedly connected to the inner wall of the second insulating sleeve, and a third sealing groove formed on the top outer surface of the second sheath.

[0011] Secondly, a first sealing groove is provided on the bottom outer surface of the first sheath, a first sealing strip is fixedly connected to the right outer wall of the first sheath, and a first reinforcing member is fixedly connected to the inner wall of the end of the first sheath away from the first sealing strip. The first reinforcing member is used to withstand the tensile force of the butterfly optical cable to protect the first optical fiber from tensile damage. The first reinforcing member is made of glass fiber to enhance tensile strength.

[0012] Furthermore, based on the above, a first support member is fixedly connected to the inner wall of the first sheath near the first sealing strip. The inner wall of the first support member is provided with a deformation hole. The first support member is used to withstand the extrusion force on one side of the first sealing strip. The deformation hole undergoes elastic deformation when under pressure to buffer external stress. A plurality of second sealing grooves are alternately provided on the outer surface of the first sealing strip. A second flange is fixedly connected between the plurality of second sealing grooves.

[0013] Meanwhile, a third flange is fixedly connected to the bottom outer wall of the second sheath, a second sealing strip is fixedly connected to the left outer wall of the second sheath, and a second reinforcing member is fixedly connected to the inner wall of the end of the second sheath away from the second sealing strip. The diameter of the second reinforcing member is the same as the diameter of the first reinforcing member.

[0014] Secondly, a number of fourth sealing grooves are alternately formed on the outer surface of the second sealing strip. A fourth flange is fixedly connected to both sides of each of the fourth sealing grooves. The fourth sealing grooves are connected to the second flanges, and the fourth flanges are connected to the second sealing grooves to form a sealing structure.

[0015] Furthermore, based on the above, a second support member is fixedly connected to the inner wall of the second sheath near the second sealing strip. The second support member is used to withstand the compressive force on one side of the second sealing strip. A support block is provided in the cavity enclosed by the first sheath and the second sheath. A third reinforcing member is fixedly connected to the inner wall of the support block. The support block is used to provide auxiliary support for the first insulating sleeve and the second insulating sleeve, so as to avoid the first optical fiber and the second optical fiber being squeezed.

[0016] Based on the above, a third support member is fixedly connected to the inner wall of both the second sheath and the first sheath. The third support member has bending portions on both sides, and the bending portions adopt an arc design to reduce stress concentration when the butterfly optical cable bends. A rigid block is fixedly connected to the inner wall of the third support member near the support block. The inner wall of the rigid block has a through hole. The rigid block is used to improve the rigidity of the third support member. When the top or bottom of the second sheath and the first sheath are subjected to pressure, the pressure will squeeze the third support member and cause the bending portions to bend. After the bending portions bend, the outer side of the third support member moves towards the rigid block. The rigid block is not easily deformed due to its high rigidity, and it disperses the pressure it bears to the two sides of the first insulating sleeve and the second insulating sleeve, thereby protecting the first optical fiber fixedly connected to the inner wall of the first insulating sleeve and the second optical fiber fixedly connected to the inner wall of the second insulating sleeve.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. In the butterfly-shaped optical cable structure based on optical fiber composite structure, after the first sheath and the second sheath are selectively or individually stripped, the first flange of the first sheath and the second sheath are connected to the third sealing groove to achieve vertical connection. The left and right connections can be achieved through the first sealing strip and the second sealing strip on the corresponding side, thereby realizing the separation and connection of the first sheath and the second sheath.

[0019] 2. In this butterfly-shaped optical cable structure based on optical fiber composite structure, when it is necessary to expand the butterfly-shaped optical cable, it can be selectively installed on the top or bottom of the original butterfly-shaped optical cable. It is sealed and connected with the first flange of the first sheath on the corresponding side and the third sealing groove of the second sheath, thereby completing the expansion operation of the butterfly-shaped optical cable.

[0020] 3. Based on the third support member, when the top or bottom of the second sheath and the first sheath are subjected to pressure, the pressure will squeeze the third support member and cause the bending part to bend. After the bending part bends, the outer side of the third support member moves towards the rigid block. The rigid block is not easily deformed due to its strong rigidity, and it disperses the pressure it bears to both sides of the first insulating sleeve and the second insulating sleeve, thereby protecting the first optical fiber fixedly connected to the inner wall of the first insulating sleeve and the second optical fiber fixedly connected to the inner wall of the second insulating sleeve.

[0021] 4. The support block is used to fill the hole area after the first insulating sleeve and the second insulating sleeve are connected vertically, and to assist in supporting the first insulating sleeve and the second insulating sleeve, so as to avoid the first optical fiber and the second optical fiber being squeezed and damaged. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0023] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0024] Figure 3 This is a schematic diagram of the butterfly-shaped optical cable expansion structure of the present invention;

[0025] Figure 4 This is a schematic diagram of the butterfly-shaped optical cable structure of the present invention;

[0026] Figure 5 This is a schematic diagram of a single-sided structure of the butterfly-shaped optical cable of the present invention;

[0027] Figure 6 This is a schematic diagram of the exploded structure of the butterfly-shaped optical cable of the present invention;

[0028] Figure 7 This is a schematic diagram of the left and right connection structure of the protective mechanism and the connecting mechanism of the present invention;

[0029] Figure 8 This is a schematic diagram of the protective mechanism structure of the present invention;

[0030] Figure 9 This is a schematic diagram of the connection mechanism of the present invention.

[0031] The meanings of the labels in the diagram are as follows:

[0032] 1. Butterfly-shaped optical cable; 2. Protective mechanism; 201. First sheath; 202. First sealing groove; 203. First reinforcing member; 204. First optical fiber; 205. First flange; 206. First sealing strip; 207. Second flange; 208. Second sealing groove; 209. First support member; 210. Deformation hole; 211. First insulating sleeve; 3. Connecting mechanism; 301. Second sheath; 302. Second reinforcing member; 303. Third flange; 304. Second optical fiber; 305. Third sealing groove; 306. Second sealing strip; 307. Fourth sealing groove; 308. Fourth flange; 309. Second support member; 310. Second insulating sleeve; 4. Third support member; 401. Bending part; 402. Rigid block; 403. Through hole; 5. Support block; 6. Third reinforcing member. Detailed Implementation

[0033] The technical solutions of this invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0034] Because the mounting, mounting, removal, replacement, and relocation of equipment such as servers and switches are extremely frequent in data center computer rooms, the structure of optical cables undergoes irreversible changes when they are selectively or independently stripped. This makes it impossible for optical cables to be flexibly reassembled or expanded in capacity according to needs during subsequent operation and maintenance, thereby reducing the flexibility of optical cable use.

[0035] Therefore, in view of the above-mentioned problems, the present invention discloses a butterfly-shaped drop cable structure based on an optical fiber composite structure, with reference to... Figure 1-2 As shown, it includes a butterfly optical cable 1, which includes a protective mechanism 2 and a connecting mechanism 3, and the protective mechanism 2 and the connecting mechanism 3 are interconnected.

[0036] refer to Figure 8 As shown, the protective mechanism 2 includes a first sheath 201, with a first insulating sleeve 211 fixedly connected to the inner wall of the first sheath 201. The first sheath 201 and the first insulating sleeve 211 are made of rubber. A first optical fiber 204 is fixedly connected to the inner wall of the first insulating sleeve 211. A first flange 205 is fixedly connected to the top outer wall of the first sheath 201. The first flange 205 is made of rubber and its top can be sealed to the third sealing groove 305. At the same time, a first sealing groove 202 is opened on the bottom outer surface of the first sheath 201. A first sealing strip 206 is fixedly connected to the right outer wall of the first sheath 201. A first reinforcing member 203 is fixedly connected to the inner wall of the end of the first sheath 201 away from the first sealing strip 206. The first reinforcing member 203 is used to withstand the tensile force of the butterfly optical cable 1 to protect the first optical fiber 204 from tensile damage. The first reinforcing member 203 is made of glass fiber to enhance tensile strength.

[0037] Furthermore, a first support member 209 is fixedly connected to the inner wall of the first sheath 201 near the first sealing strip 206. The inner wall of the first support member 209 is provided with a deformation hole 210. The first support member 209 is used to bear the extrusion force on one side of the first sealing strip 206. The deformation hole 210 undergoes elastic deformation when under pressure to buffer external stress. A number of second sealing grooves 208 are alternately provided on the outer surface of the first sealing strip 206. A second flange 207 is fixedly connected between the number of second sealing grooves 208.

[0038] refer to Figure 9As shown, the connecting mechanism 3 includes a second sheath 301, a second insulating sleeve 310 fixedly connected to the inner wall of the second sheath 301, a second optical fiber 304 fixedly connected to the inner wall of the second insulating sleeve 310, a third sealing groove 305 opened on the top outer surface of the second sheath 301, a third flange 303 fixedly connected to the bottom outer wall of the second sheath 301, a second sealing strip 306 fixedly connected to the left outer wall of the second sheath 301, and a second reinforcing member 302 fixedly connected to the inner wall of the end of the second sheath 301 away from the second sealing strip 306. The diameter of the second reinforcing member 302 is the same as the diameter of the first reinforcing member 203, and they are located on the same side when connected vertically. When the first sheath 201 and the second sheath 301 are connected horizontally, the first reinforcing member 203 and the second reinforcing member 302 are located on the left and right sides of the butterfly optical cable 1, respectively, to ensure uniform stress and structural symmetry. The second reinforcing member 302 is also made of high-strength material to provide overall tensile protection in conjunction with the butterfly optical cable 1.

[0039] The outer surface of the second sealing strip 306 is alternately provided with a plurality of fourth sealing grooves 307. The first sealing strip 206 and the second sealing strip 306 have a reusable elastic structure. A fourth flange 308 is fixedly connected to both sides of each of the plurality of fourth sealing grooves 307. The fourth sealing grooves 307 are interconnected with the second flanges 207, and the fourth flanges 308 are interconnected with the second sealing grooves 208, together forming a sealing structure. A second support member 309 is fixedly connected to the inner wall of the second sheath 301 near the second sealing strip 306. Both the first support member 209 and the second support member 309 are made of thermoplastic polyurethane elastomer material, possessing wear resistance, high elasticity, and... With high tear resistance and excellent compressive strength, it can elastically recover after being compressed. The second support 309 is used to withstand the extrusion force on one side of the second sealing strip 306. After the protective mechanism 2 is completely torn open and becomes independent, the first optical fiber 204 inside the first sheath 201 is protected by the first insulating sleeve 211. When it is necessary to perform connection work on the first optical fiber 204, the outer structure of the first insulating sleeve 211 can be torn open and one end of it can be taken out. When it is necessary to perform merging work, the first optical fiber 204 can be re-embedded inside the first insulating sleeve 211, and then the connection work between the protective mechanism 2 and the connecting mechanism 3 can be carried out. The operation of the second optical fiber 304 in the connecting mechanism 3 is the same as that of the protective mechanism 2.

[0040] refer to Figure 6As shown, a support block 5 is provided in the cavity enclosed by the first sheath 201 and the second sheath 301. A third reinforcing member 6 is fixedly connected to the inner wall of the support block 5. The support block 5 is used to provide auxiliary support for the first insulating sleeve 211 and the second insulating sleeve 310. When the two are connected vertically, a central through hole is formed at the connection point. If the butterfly optical cable 1 is subjected to radial pressure, the central through hole area is prone to crushing and deformation, leading to structural instability, which may compress or even damage the internal optical fibers. Through the auxiliary support of the support block 5, the first optical fiber 204 and the second optical fiber 304 can be protected from compression damage. A third support member 4 is fixedly connected to the inner wall of both the second sheath 301 and the first sheath 201. Bending portions 401 are provided on the left and right sides of the third support member 4. The bending portions 401 adopt an arc design to reduce the bending of the butterfly optical cable 1. During bending, stress concentration occurs. A rigid block 402 is fixedly connected to the inner wall of the third support member 4 near the support block 5. The inner wall of the rigid block 402 has a through hole 403. The rigid block 402 is used to improve the rigidity of the third support member 4. When the top or bottom of the second sheath 301 and the first sheath 201 are subjected to pressure, the pressure will act on the third support member 4, causing the bending part 401 to bend. After the bending part 401 bends, the third support member 4 is displaced towards the rigid block 402. The rigid block 402 is rigid and not easily deformed. As a result, the pressure is dispersed and transmitted to both sides of the first insulating sleeve 211 and the second insulating sleeve 310, thereby protecting the first optical fiber 204 fixedly connected to the inner wall of the first insulating sleeve 211 and the second optical fiber 304 fixedly connected to the inner wall of the second insulating sleeve 310.

[0041] When the butterfly optical cable 1 is being expanded, refer to Figure 3 As shown, the butterfly optical cable 1 to be expanded is selectively installed on the top or bottom of the original butterfly optical cable 1, and a sealed connection is achieved through the first flange 205 of the corresponding side first sheath 201 and the third sealing groove 305 of the second sheath 301, thus completing the capacity expansion operation of the butterfly optical cable 1.

[0042] When the butterfly-shaped optical cable 1 needs to be torn open on both sides, refer to Figure 4-5 As shown, when it is necessary to separate the left protective mechanism 2 and the connecting mechanism 3 from the corresponding mechanism on the right, the junction of the first sheath 201 and the second sheath 301 on the adjacent sides can be pressed. After being pressed, the bending part 401 of the third support member 4 near the pressing area will bend, and the first support member 209 fixed to the inner wall of the first sheath 201 and the second support member 309 fixed to the inner wall of the second sheath 301 on the corresponding side will deform, thereby forming a gap between the left and right protective mechanisms 2 and the connecting mechanism 3, and finally achieving the separation of the adjacent two-sided mechanisms, achieving the effect of tearing the butterfly optical cable 1 on the left and right sides. At the same time, since the first sheath 201 and the second sheath 301 on the same side are fitted with the first sealing groove 202 on the outer surface of the third flange 303, the two will not separate relative to each other.

[0043] When the butterfly-shaped optical cable 1 needs to be torn open from both the top and bottom, refer to Figure 6 , Figure 7 As shown, when separating the upper first sheath 201 and the second sheath 301, pressing the outer side of the hole on one side of the first reinforcing member 203 and the second reinforcing member 302 can cause the third flange 303 fixedly connected to the second sheath 301 to detach from the first sealing groove 202 outside the first sheath 201. Then, the first sheath 201 and the second sheath 301 are pried open to both sides respectively, so that the third flange 303 on the other side can simultaneously detach from the first sealing groove 202, thus completing the separation of the two.

[0044] The support block 5 located between the first sheath 201 and the second sheath 301 can be cut off and retained by a cutting device. When it is necessary to reconnect the two in the future, the retained support block 5 can be installed inside the first sheath 201 and the second sheath 301.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A butterfly-shaped drop cable structure based on an optical fiber composite structure, comprising a butterfly-shaped optical cable (1), characterized in that, The butterfly-shaped optical cable (1) includes a protective mechanism (2) and a connecting mechanism (3), which are interconnected. The protective mechanism (2) includes a first sheath (201), a first insulating sleeve (211) is fixedly connected to the inner wall of the first sheath (201), a first optical fiber (204) is fixedly connected to the inner wall of the first insulating sleeve (211), and a first flange (205) is fixedly connected to the top outer wall of the first sheath (201). The connecting mechanism (3) includes a second sheath (301), a second insulating sleeve (310) is fixedly connected to the inner wall of the second sheath (301), a second optical fiber (304) is fixedly connected to the inner wall of the second insulating sleeve (310), and a third sealing groove (305) is opened on the top outer surface of the second sheath (301).

2. The butterfly-shaped drop cable structure based on an optical fiber composite structure according to claim 1, characterized in that: The bottom outer surface of the first sheath (201) is provided with a first sealing groove (202), and the right outer wall of the first sheath (201) is fixedly connected with a first sealing strip (206). The inner wall of the first sheath (201) away from the first sealing strip (206) is fixedly connected with a first reinforcing member (203). The first reinforcing member (203) is used to withstand the tensile force of the butterfly optical cable (1). The first reinforcing member (203) is made of glass fiber.

3. The butterfly-shaped drop cable structure based on an optical fiber composite structure according to claim 2, characterized in that: The first sheath (201) has a first support member (209) fixedly connected to the inner wall of the side near the first sealing strip (206). The inner wall of the first support member (209) has a deformation hole (210). The first support member (209) is used to withstand the extrusion force on one side of the first sealing strip (206). The deformation hole (210) undergoes elastic deformation when under pressure to buffer external stress.

4. The butterfly-shaped drop cable structure based on an optical fiber composite structure according to claim 3, characterized in that: The outer surface of the first sealing strip (206) is provided with a plurality of second sealing grooves (208) alternately, and a second flange (207) is fixedly connected between the plurality of second sealing grooves (208).

5. The butterfly-shaped drop cable structure based on an optical fiber composite structure according to claim 1, characterized in that: The bottom outer wall of the second sheath (301) is fixedly connected to a third flange (303), the left outer wall of the second sheath (301) is fixedly connected to a second sealing strip (306), and the inner wall of the end of the second sheath (301) away from the second sealing strip (306) is fixedly connected to a second reinforcing member (302). The diameter of the second reinforcing member (302) is the same as the diameter of the first reinforcing member (203).

6. The butterfly-shaped drop cable structure based on an optical fiber composite structure according to claim 5, characterized in that: The outer surface of the second sealing strip (306) is alternately provided with a number of fourth sealing grooves (307), and a fourth flange (308) is fixedly connected to both sides of the number of fourth sealing grooves (307). The fourth sealing grooves (307) are connected to the second flange (207), and the fourth flange (308) is connected to the second sealing groove (208) to form a sealing structure together.

7. The butterfly-shaped drop cable structure based on an optical fiber composite structure according to claim 6, characterized in that: The second sheath (301) has a second support member (309) fixedly connected to the inner wall of the side near the second sealing strip (306). The second support member (309) is used to withstand the extrusion force on one side of the second sealing strip (306).

8. The butterfly-shaped drop cable structure based on an optical fiber composite structure according to claim 1, characterized in that: A support block (5) is provided in the cavity enclosed by the first sheath (201) and the second sheath (301). A third reinforcing member (6) is fixedly connected to the inner wall of the support block (5). The support block (5) is used to provide auxiliary support for the first insulating sleeve (211) and the second insulating sleeve (310) to prevent the first optical fiber (204) and the second optical fiber (304) from being squeezed.

9. The butterfly-shaped drop cable structure based on an optical fiber composite structure according to claim 1, characterized in that: The inner walls of the second sheath (301) and the first sheath (201) are both fixedly connected with a third support member (4). The third support member (4) has a bending part (401) on its left and right sides. The bending part (401) adopts an arc design to reduce the stress concentration when the butterfly optical cable (1) is bent.

10. The butterfly-shaped drop cable structure based on an optical fiber composite structure according to claim 9, characterized in that: The third support member (4) has a rigid block (402) fixedly connected to the inner wall of the side near the support block (5). The inner wall of the rigid block (402) has a through hole (403). The rigid block (402) is used to improve the rigidity of the third support member (4).

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