CN115755302A - Compression-resistant impact-resistant optical cable - Google Patents
Compression-resistant impact-resistant optical cable Download PDFInfo
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- CN115755302A CN115755302A CN202211499505.8A CN202211499505A CN115755302A CN 115755302 A CN115755302 A CN 115755302A CN 202211499505 A CN202211499505 A CN 202211499505A CN 115755302 A CN115755302 A CN 115755302A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention belongs to the field of optical cables, and particularly relates to an anti-compression and anti-impact optical cable. The outer sheath, the inner sheath, the elastic buffer layer and the axial lead are sequentially arranged from outside to inside; a plurality of optical fiber cavities for the optical fiber wires to penetrate through are arranged at the axial lead; the inner sheath, the elastic buffer layer and the axial lead are arranged layer by layer in a sequentially sealed and encapsulated manner; the outer sheath is coated on the outer side of the inner sheath, and the minimum inner diameter of the outer sheath is larger than the maximum outer diameter of the inner sheath; the inner surface circumference of oversheath is equipped with the tooth structure in order, the corresponding groove structure that is equipped with of tooth structure is corresponded to the surface of inner sheath, and groove structure quantity equals with tooth structure quantity and corresponds the setting at the radial inboard of tooth structure. The optical cable disclosed by the invention adopts special structural matching, so that the optical cable has the capability of bearing high frequency and repeated deformation on the basis of certain pressure resistance, namely good impact resistance, and meanwhile, the use of metal reinforcing parts is reduced, and the optical cable also has the characteristic of light weight.
Description
Technical Field
The invention belongs to the field of optical cables, and particularly relates to a compression-resistant and impact-resistant optical cable.
Background
An optical cable is a communication cable with rapid modern development, and is widely used in various industries and fields. In particular fields, optical cables are often required to meet specific requirements. When the cable is used in special scenes such as rescue and relief sites, mine tunnels and the like, the cable is easy to break, the fiber is easy to break and the like under the action of instant strong impact force such as rockfall and the like, and finally communication is blocked.
Although most of existing optical cables have good pressure resistance, the existing optical cables only aim at external forces which are slow in action process, such as artificial treading, object extrusion or wiring bending and the like, the external forces can be effectively buffered through the existing pressure-resistant structures, and good buffering effect cannot be generated to impact force.
Impact force usually has the characteristic of high-frequency repetition, and can be repeatedly applied to the optical cable within a certain period time, so that on the basis that the optical cable has certain compression-resistant mechanical properties, the strengthening of the deformation recovery and fatigue resistance of the optical cable is very critical.
Disclosure of Invention
The invention provides a compression-resistant impact-resistant optical cable, aiming at solving the problems that the existing optical cable has limited impact resistance, and the optical fiber in the optical cable is easy to be stressed and damaged due to the fact that the existing compression-resistant structure cannot generate timely buffering deformation when facing impact force.
The invention aims to:
1. the optical cable is ensured to have good pressure resistance;
2. the impact resistance of the optical cable is remarkably improved;
3. ensure that the optical cable has lightweight characteristics.
In order to achieve the purpose, the invention adopts the following technical scheme.
An optical cable resistant to compression and impact, comprising:
the outer sheath, the inner sheath, the elastic buffer layer and the axial lead are sequentially arranged from outside to inside;
a plurality of optical fiber cavities for the optical fiber wires to penetrate are arranged at the axial lead;
the inner sheath, the elastic buffer layer and the axial lead are arranged layer by layer in a sequentially sealed and encapsulated manner;
the outer sheath is coated on the outer side of the inner sheath, and the minimum inner diameter of the outer sheath is larger than the maximum outer diameter of the inner sheath;
the inner surface circumference of oversheath is equipped with the tooth structure in order, the corresponding groove structure that is equipped with of tooth structure is corresponded to the surface of inner sheath, and groove structure quantity equals with tooth structure quantity and corresponds the setting at the radial inboard of tooth structure.
As a preference, the first and second liquid crystal compositions are,
a plurality of the tooth structures are matched to form a tooth unit;
the tooth unit consists of short teeth and long teeth;
the length of the long teeth along the radial direction of the optical cable is larger than that of the short teeth.
As a preference, the first and second liquid crystal compositions are,
the number of the tooth structures is integral multiple of three, and the tooth unit is composed of three tooth structures.
As a matter of preference,
three tooth structures in the tooth unit are sequentially long teeth, short teeth and long teeth along the circumferential direction.
As a preference, the first and second liquid crystal compositions are,
the short teeth on the inner surface of the outer sheath are also correspondingly provided with elastic strips.
As a preference, the first and second liquid crystal compositions are,
the elastic strip is in a concave shape on the radial section of the optical cable, the outer side of the elastic strip in the radial direction is a groove-shaped embedding opening, and the inner side of the elastic strip in the radial direction is an embedding head.
As a preference, the first and second liquid crystal compositions are,
the width of the rabbet is equal to that of the short teeth, the short teeth are embedded in the rabbet, and the length of the short teeth is smaller than the depth of the rabbet;
the embedded head is embedded in the groove structure corresponding to the inner side of the short tooth diameter, and the width of the embedded head is larger than or equal to that of the groove structure.
As a preference, the first and second liquid crystal compositions are,
the sum of the embedding depth of the elastic strip and the thickness of the embedding head is larger than the length of the long teeth.
As a matter of preference,
and a slingshot wire penetrates through the elastic buffer layer.
The invention has the beneficial effects that:
the optical cable disclosed by the invention adopts a special structural cooperation, so that the optical cable has the capability of bearing high frequency and repeated deformation on the basis of certain pressure resistance, namely has good impact resistance, and simultaneously reduces the use of metal reinforcing parts, so that the optical cable also has the characteristic of light weight.
Drawings
FIG. 1 is a schematic structural view of a fiber optic cable according to the present invention;
FIG. 2 is a schematic axial side view of a fiber optic cable according to the present invention;
FIG. 3 is a schematic view of a force condition of the fiber optic cable of the present invention;
FIG. 4 is a schematic view of another force condition of the fiber optic cable of the present invention;
in the figure: 100 outer sheaths, 101 tooth units, 1011 long teeth, 1012 short teeth, 1013 elastic strips, 10131 caulking ports, 10132 caulking heads, 200 inner sheaths, 201 groove structures, 300 elastic buffer layers, 301 slingshot wires, 400 axial leads, 401 optical fiber cavities and 500 optical fiber wires.
Detailed Description
The invention is described in further detail below with reference to specific embodiments and the attached drawing figures. Those skilled in the art will be able to practice the invention based on these descriptions. Moreover, the embodiments of the present invention described in the following description are generally only some embodiments of the present invention, and not all embodiments. Therefore, all other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "thickness", "upper", "lower", "horizontal", "top", "bottom", "inner", "outer", "circumferential", and the like, are used in the orientations and positional relationships indicated in the drawings, which are based on the orientation or positional relationship shown in the drawings, and are used for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., and "a plurality" means one or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Unless otherwise specified, the raw materials used in the examples of the present invention are all commercially available or available to those skilled in the art; unless otherwise specified, the methods used in the examples of the present invention are all those known to those skilled in the art.
Examples
A light optical cable with good compression resistance and impact resistance as shown in figure 1 specifically comprises:
the outer sheath 100, the inner sheath 200, the elastic buffer layer 300 and the shaft axis 400 are arranged from outside to inside in sequence;
a plurality of optical fiber cavities 401 are arranged at the position of the axial lead 400, and optical fiber wires 500 are arranged in the optical fiber cavities 401 in a penetrating manner;
the inner sheath 200, the elastic buffer layer 300 and the shaft axis 400 are arranged layer by layer in a close joint encapsulation mode in sequence to form a solid structure, so that a good shaping and supporting effect can be achieved, and the specific gravity of the optical cable can be reduced well under the condition that no metal reinforcing part is arranged, so that the optical cable can be transported and accommodated conveniently;
there is a gap between outer sheath 100 and inner sheath 200, i.e. the minimum inner diameter of outer sheath 100 is greater than the maximum outer diameter of inner sheath 200, specifically:
the inner surface of the outer sheath 100 is circumferentially and sequentially provided with tooth structures, the number of the circumferentially arranged tooth structures is an integral multiple of three, and three tooth structures form a tooth unit 101;
the three tooth structures in the tooth unit 101 are a long tooth 1011, a short tooth 1012 and a long tooth 1011 sequentially arranged along the circumferential direction, the length of the long tooth 1011 along the radial direction of the optical cable is greater than that of the short tooth 1012, and the widths of the long tooth 1011 and the short tooth 1012 in the circumferential direction of the optical cable are equal, that is, two long teeth 1011 are arranged on two circumferential sides of each short tooth 1012 in the circumferential direction of the inner surface of the outer sheath 100;
compared with the way of alternately arranging the long teeth 1011 and the short teeth 1012, i.e. compared with the case of forming a unit with two teeth structure,
the outer surface of the inner sheath 200 is correspondingly provided with groove structures 201 corresponding to the tooth structures, the number of the groove structures 201 is equal to that of the tooth structures, and the radial inner side of each tooth structure is correspondingly provided with the groove structures 201;
the width of the groove structure 201 in the circumferential direction of the optical cable is greater than that of the tooth structure, so that the tooth structure of the outer sheath 100 cannot be rebounded due to the fact that the tooth structure is clamped in the groove structure 201 due to factors such as friction or extrusion;
the short teeth 1012 on the inner surface of the outer sheath 100 are also correspondingly provided with elastic strips 1013;
the elastic strip 1013 is in a shape of Chinese character 'ao' on the radial cross section of the optical cable, the outer side of the elastic strip is a grooved rabbet 10131 in the radial direction, the inner side of the elastic strip in the radial direction is a rabbet 10132, the width of the rabbet 10131 is equal to the width of the short tooth 1012, the short tooth 1012 is embedded in the rabbet 10131, and the length of the short tooth 1012 is less than the depth of the rabbet 10131, so as to ensure that a gap exists between the end of the short tooth 1012 and the bottom of the rabbet 10131;
the embedded head 10132 is embedded in the corresponding groove structure 201 at the radial inner side of the short tooth 1012, and the width of the embedded head 10132 is more than or equal to the width of the groove structure 201, so as to ensure the installation stability of the elastic strip 1013 and the groove structure 201;
the sum of the depth of the embedded opening 10131 and the thickness of the embedded head 10132 of the elastic strip 1013 is greater than the length of the long tooth 1011, that is, the maximum length of the elastic strip 1013 in the radial direction of the optical cable is greater than the length of the long tooth 1011, so as to ensure that the elastic strip 1013 can play a role in elastically supporting and separating the inner wall of the outer sheath 100 and the outer wall of the inner sheath 200, so that the outer sheath 100 and the inner sheath 200 are separately arranged;
the optical cable adopting the structure has good impact resistance and pressure resistance when being acted by external force, in particular,
when the optical cable is subjected to an external force, the outer sheath 100 extrudes and deforms to drive the tooth structure to deform, if the main deformation is located at the long tooth 1011, a certain preliminary buffer is formed by the way of colliding the long tooth 1011 as shown in fig. 3, and the external force cannot be directly conducted inwards due to the actions of impact force, friction, material deformation, resilience and the like in the collision process, so that compared with a solid structure, the buffer has a good buffer effect, the external extrusion acting force is borne and buffered by the internal elastic buffer layer 300, the stress of the axial lead 400 is reduced, the internal optical fiber 500 is protected, meanwhile, the situation that the short tooth 1012 direction is extruded necessarily exists, when the short tooth 1012 direction is subjected to the extrusion acting force, the short shaft compresses inwards to firstly extrude the elastic strip 1013 as shown in fig. 4, and multi-form and multi-level buffer is formed by the way of friction and elastic deformation, so that a good compression-resistant effect is achieved;
when the optical cable is impacted by periodic external force, the optical cable has better impact resistance, and due to the separated arrangement of the outer sheath 100 and the inner sheath 200 and the arrangement of the elastic strip 1013, the structure can be quickly reset to deal with next impact after the impact effect and the impact force disappear, and the structure is not easy to generate permanent deformation and internal extrusion damage when the optical cable is impacted by periodic impact like a solid structure.
Further, in the above-mentioned case,
the elastic buffer layer 300 is provided with the slingshot wire 301 in a penetrating manner, and the slingshot wire 301 is arranged so that the axial deformation is easily generated when the slingshot wire is extruded to further disperse acting force, so that a better elastic buffer effect is formed, and the optical cable has better compression resistance and shock resistance;
in addition, the optical fiber cavity 401 adopts a non-circular cross-sectional structure, so that a certain allowance space can be formed when the optical fiber 500 is arranged in the optical fiber cavity 401, the allowance space should be radially outside the optical fiber 500, and due to the existence of the allowance space, the optical fiber cable is less prone to act on the optical fiber 500 when subjected to impact and extrusion;
in particular, the method comprises the following steps of,
as shown in this embodiment, the optical fiber cavity 401 of this embodiment is bullet-like in the radial cross section of the optical cable, the optical fiber line 500 is disposed at the head end of the radial inner side of the optical fiber cavity 401, and the radial outer side of the optical fiber line has more allowance spaces, after the external force is applied to the axial line 400, the allowance spaces can effectively avoid the direct stress of the optical fiber line 500, so that the compression resistance and the impact resistance of the optical cable are significantly improved.
Claims (9)
1. An optical cable resistant to compression and impact, comprising:
the outer sheath, the inner sheath, the elastic buffer layer and the axial lead are sequentially arranged from outside to inside;
a plurality of optical fiber cavities for the optical fiber wires to penetrate through are arranged at the axial lead;
the inner sheath, the elastic buffer layer and the axial lead are arranged layer by layer in a sequentially sealed and encapsulated manner;
the outer sheath is coated on the outer side of the inner sheath, and the minimum inner diameter of the outer sheath is larger than the maximum outer diameter of the inner sheath;
the inner surface circumference of oversheath is equipped with the tooth structure in order, the corresponding groove structure that is equipped with of tooth structure is corresponded to the surface of inner sheath, and groove structure quantity equals with tooth structure quantity and corresponds the setting at the radial inboard of tooth structure.
2. The optical cable of claim 1,
a plurality of the tooth structures are matched to form a tooth unit;
the tooth unit consists of short teeth and long teeth;
the length of the long teeth along the radial direction of the optical cable is larger than that of the short teeth.
3. The optical cable of claim 2,
the number of the tooth structures is integral multiple of three, and the tooth unit is composed of three tooth structures.
4. The optical cable of claim 3, wherein the optical cable is a cable having a plurality of optical fibers,
three tooth structures in the tooth unit are sequentially long teeth, short teeth and long teeth along the circumferential direction.
5. The crush-resistant impact-resistant optical cable according to claim 2, 3 or 4,
the short teeth on the inner surface of the outer sheath are also correspondingly provided with elastic strips.
6. The optical cable of claim 5,
the elastic strip is in a concave shape on the radial section of the optical cable, the outer side of the elastic strip in the radial direction is a groove-shaped embedded opening, and the inner side of the elastic strip in the radial direction is an embedded head.
7. The optical cable of claim 6,
the width of the rabbet is equal to that of the short teeth, the short teeth are embedded in the rabbet, and the length of the short teeth is smaller than the depth of the rabbet;
the embedded head is embedded in the groove structure corresponding to the inner side of the short tooth diameter, and the width of the embedded head is larger than or equal to that of the groove structure.
8. The optical cable of claim 6, wherein the optical cable is a cable having a plurality of optical fibers,
the sum of the embedding depth of the elastic strip and the thickness of the embedding head is larger than the length of the long teeth.
9. The optical cable of claim 1,
and a slingshot wire penetrates through the elastic buffer layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211499505.8A CN115755302A (en) | 2022-11-28 | 2022-11-28 | Compression-resistant impact-resistant optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211499505.8A CN115755302A (en) | 2022-11-28 | 2022-11-28 | Compression-resistant impact-resistant optical cable |
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| Publication Number | Publication Date |
|---|---|
| CN115755302A true CN115755302A (en) | 2023-03-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211499505.8A Pending CN115755302A (en) | 2022-11-28 | 2022-11-28 | Compression-resistant impact-resistant optical cable |
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| CN (1) | CN115755302A (en) |
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- 2022-11-28 CN CN202211499505.8A patent/CN115755302A/en active Pending
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