CN216526432U - Side pressure resistant optical cable - Google Patents
Side pressure resistant optical cable Download PDFInfo
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- CN216526432U CN216526432U CN202123329912.8U CN202123329912U CN216526432U CN 216526432 U CN216526432 U CN 216526432U CN 202123329912 U CN202123329912 U CN 202123329912U CN 216526432 U CN216526432 U CN 216526432U
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Abstract
The utility model relates to a side pressure resistant optical cable which comprises a cable core, an inner protective layer and an outer protective sleeve, wherein the inner protective layer is arranged on the cable core; the cable core comprises a central reinforcing part and a plurality of optical units, the optical units are symmetrically arranged by taking the central reinforcing part as a center, the optical units are twisted with the central reinforcing part and externally coated with a non-metallic layer to form the cable core, the cable core is externally coated with an inner protective layer, the inner protective layer comprises an inner sheath and an auxiliary supporting part, the cable core is arranged in the inner sheath, and the auxiliary supporting part is arranged between the inner sheath and an outer sheath coated outside the inner sheath and used for providing auxiliary support for the cable; the inner sheath protects the inner cable core from being influenced by external pressure; meanwhile, the inner sheath is matched with the auxiliary supporting piece, the auxiliary supporting piece can provide supporting force for the outer sheath, and meanwhile, the inner sheath is provided with a certain buffer space, so that the inner sheath can keep a relatively stable state when being subjected to external large pressure to protect the inner cable core; through the double-deck protection of inner sheath and auxiliary support piece, the holistic compressive capacity of cable obtains improving in order to satisfy the user demand.
Description
Technical Field
The utility model relates to the technical field of communication optical cables, in particular to a lateral pressure resistant optical cable.
Background
Fiber optic cables are manufactured to meet optical, mechanical, or environmental performance specifications and utilize one or more optical fibers disposed in a covering jacket as the transmission medium and may be used individually or in groups as telecommunication cable assemblies.
At present, the optical cable is used in a large area in network communication, in practical application, the optical cable is often required to be erected outdoors and can be extruded from the outside, but the existing optical cable has poor pressure resistance and cannot meet the requirement on pressure resistance in use.
Therefore, it is necessary to design an optical cable having high pressure resistance.
SUMMERY OF THE UTILITY MODEL
Therefore, the technical problem to be solved by the utility model is to overcome the problems that in the prior art, the optical cable is often subjected to pressure from the outside when being erected or used outdoors, but the existing optical cable has poor pressure resistance and cannot meet the requirement on pressure resistance in use.
In order to solve the technical problem, the utility model provides a lateral pressure resistant optical cable which comprises a cable core, an inner protection layer and an outer sheath, wherein the inner protection layer is arranged on the cable core; the cable core includes central reinforcement and optical unit, optical unit uses central reinforcement to be provided with a plurality ofly as central symmetry, and is a plurality of optical unit and central reinforcement transposition and outer cladding nonmetal layer form the cable core, the outer cladding inner sheath of cable core, the inner sheath includes inner sheath and supplementary support piece, the cable core sets up in the inner sheath, supplementary support piece sets up between inner sheath and the outer oversheath of cladding outside the inner sheath for provide the auxiliary stay for the cable.
In one embodiment of the utility model, the inner sheath is cylindrical, the inner sheath is provided with a central passage, the cable core is arranged in the central passage, and a plurality of circular arc bulges extending along the length direction of the inner sheath are symmetrically arranged on the outer side of the inner sheath and correspond to the auxiliary support.
In one embodiment of the utility model, the auxiliary supporting piece is W-shaped and comprises a middle recess and two symmetrical raised edges, the auxiliary supporting piece is clamped on the arc protrusion through the middle recess, and the two raised edges of the auxiliary supporting piece are abutted to the outer sheath.
In an embodiment of the utility model, the middle recess is an arc-shaped middle recess, and both the raised edges are arc-shaped raised edges.
In one embodiment of the utility model, the opposite raised edges of adjacent said auxiliary supports abut against each other.
In one embodiment of the present invention, the optical unit includes a loose tube and a single or a plurality of optical fibers disposed in the loose tube, and a water blocking cable paste for blocking water is filled between the loose tube and the optical fibers.
In one embodiment of the utility model, a plurality of filling ropes for filling are uniformly arranged in the cable core.
In one embodiment of the utility model, a plurality of arc grooves extending in the length direction of the inner sheath are uniformly arranged at intervals on the outer side of the inner sheath, and reinforcing members matched with the arc grooves in shape are arranged in the arc grooves.
In one embodiment of the present invention, the non-metal layer is a non-metal layer sheath woven by non-metal wires.
In one embodiment of the utility model, the outer sheath is an AT tracking-resistant outer sheath or a polyethylene outer sheath.
Compared with the prior art, the technical scheme of the utility model has the following advantages:
the side pressure resistant optical cable is provided with an inner sheath coated outside a cable core, wherein the inner sheath comprises an inner sheath and an auxiliary supporting piece, the cable core is arranged in the inner sheath, and the inner cable core is protected from the influence of external pressure by the inner sheath; meanwhile, the inner sheath is matched with an auxiliary supporting piece arranged between the inner sheath and the outer sheath (the auxiliary supporting piece can provide supporting force for the outer sheath, and meanwhile, the inner sheath is provided with a certain buffer space), so that the inner sheath can keep a relatively stable state to protect the inner cable core when being subjected to external large pressure; through the double-deck protection of inner sheath and auxiliary support piece, the holistic compressive capacity of cable obtains improving in order to satisfy the demand of using.
Drawings
In order that the present disclosure may be more readily and clearly understood, reference is now made to the following detailed description of the embodiments of the present disclosure taken in conjunction with the accompanying drawings, in which
FIG. 1 is a schematic view of the overall structure of the present invention;
figure 2 is a schematic view of a cable core according to the utility model;
FIG. 3 is a schematic view of the inner sheath of the present invention;
fig. 4 is a schematic view of the auxiliary support of the present invention.
The specification reference numbers indicate: 1. a cable core; 11. a central reinforcement; 12. a light unit; 121. loosening the sleeve; 122. an optical fiber; 123. water-blocking cable paste; 13. a non-metal layer; 14. filling a rope; 2. an inner protective layer; 21. an inner sheath; 211. a central passage; 212. a circular arc bulge; 213. an arc groove; 22. an auxiliary support; 221. the middle part is sunken; 222. edge warping; 23. a reinforcement; 3. an outer sheath.
Detailed Description
The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.
Referring to fig. 1-4, the lateral pressure resistant optical cable of the present invention includes a cable core 1, an inner sheath 2 and an outer sheath 3; the cable core 1 comprises a central reinforcing piece 11 and optical units 12, the optical units 12 are arranged in a plurality of modes by taking the central reinforcing piece 11 as central symmetry, the optical units 12 are twisted with the central reinforcing piece 11 and are externally coated with a nonmetal layer 13 to form the cable core 1, the cable core 1 is externally coated with an inner protection layer 2, the inner protection layer 2 comprises an inner protection sleeve 21 and an auxiliary support piece 22, the cable core 1 is arranged in the inner protection sleeve 21, and the auxiliary support piece 22 is arranged between the inner protection sleeve 21 and an outer protection sleeve 3 coated outside the inner protection sleeve 21 and used for providing auxiliary support for a cable.
Further, the optical unit 12 includes a loose tube 121 and a single or multiple optical fibers 122 disposed in the loose tube 121, and a water blocking cable paste 123 for blocking water is filled between the loose tube 121 and the optical fibers 122, so as to improve the water blocking capability of the cable and ensure that the cable can maintain a good operation state under different external environments.
Further, still evenly be provided with a plurality of packing ropes 14 that play the filling effect in the cable core 1, the inner space of packing cable guarantees the final circularity of cable core 1 and cable, also can play the effect of improving the cable compressive capacity to a certain extent simultaneously.
Further, the outside interval of inner sheath 21 is provided with a plurality of arc grooves 213 that extend at its length direction uniformly, all be provided with in a plurality of arc grooves 213 with its shape assorted reinforcement 23, reinforcement 23 set up to with arc grooves 213 shape assorted columniform reinforcement, reinforcement 23 is better, more stable with arc grooves 213's laminating degree, can improve the holistic tensile of cable and compressive strength.
Furthermore, the non-metal layer 13 is a non-metal layer protective layer woven by non-metal wires, and compared with metal, the non-metal layer has lighter weight, so that the overall weight of the cable can be reduced; and adopt the mode that the non-metal wire weaved for non-metal layer 13 has better shock resistance when having certain holding power, and non-metal layer 13 can not take place the condition of fracture when receiving great external force impact suddenly.
Further, the outer sheath 3 is an AT tracking-resistant outer sheath or a polyethylene outer sheath, and can play a better role in protection and pressure resistance.
Referring to fig. 3, further, the inner sheath 21 is cylindrical, the inner sheath 21 is provided with a central passage 211, the cable core 1 is disposed in the central passage 211, a plurality of circular arc protrusions 212 extending along the length direction of the inner sheath 21 are symmetrically disposed on the outer side of the inner sheath 21, and the circular arc protrusions 212 correspond to the auxiliary support 22; the inner sheath 21 is made of polyethylene material, and corresponding internal passages can be arranged inside the inner sheath 21 according to actual requirements to accommodate more communication units.
Referring to fig. 1, 3 and 4, further, the auxiliary supporting member 22 is W-shaped, and includes a middle recess 221 and two symmetrical raised edges 222, the auxiliary supporting member 22 is clamped on the arc protrusion 212 through the middle recess 221, and the two raised edges 222 of the auxiliary supporting member 22 abut against the outer sheath 3; it should be noted that the arc radius of the middle recess 221 at the bottom of the auxiliary support member 22 should be smaller than the arc radius of the arc protrusion 212, so that when the auxiliary support member 22 is clamped on the arc protrusion 212, a certain moving space is provided between the top of the arc protrusion 212 and the arc middle recess 221, so that when the optical cable is pressed by an external force to press the auxiliary support member 22 against the arc protrusion 212, a certain buffer space can be provided between the auxiliary support member 22 and the inner sheath 21; meanwhile, when the auxiliary support 22 is pressed toward the arc protrusion 212, the space between the arc protrusion 212 and the middle recess 221 is reduced, the arc protrusion 212 can jack up the two raised edges 222 of the auxiliary support 22, and the raised edges 222 can provide a supporting force for the outer sheath 3, thereby enhancing the pressure resistance of the whole cable to a certain extent.
It is conceivable that a proper amount of filler may be filled in the gap between the two raised edges 222 of the auxiliary support 22 and the outer sheath 3, so that when the arc protrusion 212 pushes up the two raised edges 222 of the auxiliary support 22, the two raised edges 222 cooperate with the filler to provide a larger-area supporting surface and more uniform supporting force for the outer sheath 3, so that the pressure resistance of the whole cable is higher, and the roundness of the cable is better; meanwhile, a non-metal protective layer can be arranged between the auxiliary supporting piece 22 and the outer sheath 3 to wrap the filler, so that the roundness and the pressure resistance of the cable are further improved.
Further, the middle depression 221 is an arc-shaped middle depression, and both of the two raised edges 222 are arc-shaped raised edges; compare in the straight face, the compressive capacity of arc surface can be better, so will stick up limit 222 and middle part and cave in 221 and all set up to circular-arcly, can improve the compressive capacity of whole cable to a certain extent.
Further, the opposite raised edges 222 of adjacent auxiliary supports 22 abut against each other; supplementary support element 22 is corresponding with the protruding 212 of circular arc in the inner sheath 21 outside, and after supplementary support element 22 joint to circular arc protruding 212, adjacent two supplementary support element 22 are close to each other stick up limit 222 and lean on each other, can play spacing effect each other between supplementary support element 22 like this, and when the optical cable received great external pressure, supplementary support element 22 can not take place big skew, guarantees the stability of cable inner structure, further improves the compressive capacity of optical cable.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the utility model.
Claims (10)
1. The utility model provides a side pressure resistant optical cable which characterized in that: the cable comprises a cable core, an inner protection layer and an outer sheath; the cable core includes central reinforcement and optical unit, optical unit uses central reinforcement to be provided with a plurality ofly as central symmetry, and is a plurality of optical unit and central reinforcement transposition and outer cladding nonmetal layer form the cable core, the outer cladding inner sheath of cable core, the inner sheath includes inner sheath and supplementary support piece, the cable core sets up in the inner sheath, supplementary support piece sets up between inner sheath and the outer oversheath of cladding outside the inner sheath for provide the auxiliary stay for the cable.
2. The lateral pressure resistant optical cable according to claim 1, wherein: the inner sheath is cylindric, the inner sheath is provided with central route, the cable core sets up in central route, the outside symmetry of inner sheath is provided with a plurality of circular arc archs that extend along its length direction, the circular arc arch with auxiliary support piece is corresponding.
3. The lateral pressure resistant optical cable according to claim 2, wherein: auxiliary support piece is the W type, including the sunken limit that sticks up with two symmetries in middle part, auxiliary support piece is located on the circular arc is protruding through middle part sunken card, just auxiliary support piece's two stick up limit and oversheath looks butt.
4. The lateral pressure resistant optical cable according to claim 3, wherein: the middle part is sunken for circular-arc middle part, and two stick up the limit and be circular-arc sticking up the limit.
5. The lateral pressure resistant optical cable according to claim 2, wherein: the opposite raised edges of the adjacent auxiliary supporting pieces abut against each other.
6. The lateral pressure resistant optical cable according to claim 1, wherein: the optical unit comprises a loose tube and one or more optical fibers arranged in the loose tube, and water-blocking cable paste for blocking water is filled between the loose tube and the optical fibers.
7. The lateral pressure resistant optical cable according to claim 1, wherein: and a plurality of filling ropes for filling are uniformly arranged in the cable core.
8. The lateral pressure resistant optical cable according to claim 1, wherein: the outer side of the inner sheath is evenly provided with a plurality of arc grooves extending in the length direction at intervals, and the arc grooves are internally provided with reinforcing pieces matched with the arc grooves in shape.
9. The lateral pressure resistant optical cable according to claim 1, wherein: the non-metal layer is a non-metal layer protective layer woven by non-metal wires.
10. The lateral pressure resistant optical cable according to claim 1, wherein: the outer sheath is an AT tracking-resistant outer sheath or a polyethylene outer sheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123329912.8U CN216526432U (en) | 2021-12-27 | 2021-12-27 | Side pressure resistant optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123329912.8U CN216526432U (en) | 2021-12-27 | 2021-12-27 | Side pressure resistant optical cable |
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| Publication Number | Publication Date |
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| CN216526432U true CN216526432U (en) | 2022-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202123329912.8U Active CN216526432U (en) | 2021-12-27 | 2021-12-27 | Side pressure resistant optical cable |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117148525A (en) * | 2023-10-30 | 2023-12-01 | 江苏中天科技股份有限公司 | Underwater optical cable |
| CN117192713A (en) * | 2023-11-08 | 2023-12-08 | 江苏中天科技股份有限公司 | Underwater optical cable |
-
2021
- 2021-12-27 CN CN202123329912.8U patent/CN216526432U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117148525A (en) * | 2023-10-30 | 2023-12-01 | 江苏中天科技股份有限公司 | Underwater optical cable |
| CN117148525B (en) * | 2023-10-30 | 2024-03-22 | 江苏中天科技股份有限公司 | Underwater optical cable |
| CN117192713A (en) * | 2023-11-08 | 2023-12-08 | 江苏中天科技股份有限公司 | Underwater optical cable |
| CN117192713B (en) * | 2023-11-08 | 2024-02-02 | 江苏中天科技股份有限公司 | Underwater optical cable |
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