A hangable multi-fiber cable

Abstract

The present application relates to a kind of multi-core optical cable of hanging type, including profiled flame-retardant sheath, light unit is arranged in the middle of profiled flame-retardant sheath, left side non-metallic reinforcing core and right side non-metallic reinforcing core are respectively arranged in the left and right sides of light unit, light unit, left side non-metallic reinforcing core, right side non-metallic reinforcing core all extend along the length direction of profiled flame-retardant sheath, light unit includes super large core number fiber module and flexible water-blocking non-metallic filling layer wrapped in the periphery of super large core number fiber module, profiled flame-retardant sheath left and right sides are respectively provided with several left side hangable grooves and right side hangable grooves arranged along the length direction of profiled flame-retardant sheath and uniformly spaced, left side hangable groove and right side hangable groove are semicylindrical groove, left and right side non-metallic reinforcing core is hollowed out in the outer side of profiled flame-retardant sheath by left and right side hangable groove respectively;The present application not only can be hung wiring construction, has certain tensile strength, and optical cable size is small, high density, and has very high flame retardant.

Description

[TECHNICAL FIELD]

[0001] The present application relates to the technical field of optical fiber cable, in particular to a kind of multi-core optical cable of hanging type. [BACKGROUND]

[0002] At present, with the development of optical communication era, the diversification of use scene, the optical cable demand of special requirement applicable place is gradually increased, and the use requirement difficulty is more and more big, for different use scene and use condition, both satisfy its special use place, also guarantee higher tensile property and temperature change resistance, simultaneously also hope light, the multiple optical communication signals that can be transmitted, and also need to have high flame-retardant combustion to adapt to higher temperature change range, the cable is used in the use scene of regional interconnection.But the conventional optical cable structure cannot meet its use demand, so a new type of structure needs to be designed to meet its required requirements. [SUMMARY]

[0003] The purpose of the present application is to solve the above problems and provide a kind of multi-core optical cable of hanging type, not only can be hung wiring construction, with a certain tensile strength, and the optical cable size is small, and the density is high, with high flame-retardant, solve the demand of present user.

[0004] To achieve the above purpose, a kind of multi-core optical cable of hanging type is designed, including profiled flame-retardant sheath 6, the profiled flame-retardant sheath 6 middle part is provided with optical unit 5, the left side non-metallic reinforcing core 1 and the right side non-metallic reinforcing core 2 are respectively arranged on the left and right sides of optical unit 5, the optical unit 5, left side non-metallic reinforcing core 1, right side non-metallic reinforcing core 2 all extend along the length direction of profiled flame-retardant sheath 6, the optical unit 5 includes flexible water-blocking non-metallic filling layer 501 and super large core number optical fiber module 502, the flexible water-blocking non-metallic filling layer 501 is wrapped around the periphery of super large core number optical fiber module 502, the profiled flame-retardant sheath 6 left and right sides are respectively provided with left side hanging groove 3 and right side hanging groove 4, the left side hanging groove 3 and the right side hanging groove 4 are respectively provided with at least two, and are uniformly spaced along the length direction of profiled flame-retardant sheath 6, the left side hanging groove 3 and the right side hanging groove 4 are both semicylindrical grooves, the left side non-metallic reinforcing core 1 and the right side non-metallic reinforcing core 2 are hollowed out on the outer sides of profiled flame-retardant sheath 6 through left side hanging groove 3 and right side hanging groove 4 respectively, so as to be hung wiring construction.

[0005] Further, the longitudinal section of the optical unit 5 is square, and the left side non-metallic reinforcing core 1 and the right side non-metallic reinforcing core 2 are symmetrically arranged.

[0006] Further, the radius of the plurality of semicircular grooves on both sides of the special-shaped flame-retardant sheath 6 is greater than the length of the left non-metallic reinforcing core 1 or the right non-metallic reinforcing core 2 to the edge of the special-shaped flame-retardant sheath 6 by 0.5-1 cm, so that the non-metallic reinforcing core on both sides of the special-shaped sheath can be used for hook suspension or fixed clamping groove to fix the position of the optical cable, without other equipment to fix and tighten the optical cable, reducing the cost of construction wiring.

[0007] Further, the cross section of the special-shaped flame-retardant sheath 6 is oval, and the left non-metallic reinforcing core 1 and the right non-metallic reinforcing core 2 are respectively located at the centers of the upper semicircle and the lower semicircle of the special-shaped flame-retardant sheath 6.

[0008] Further, the left non-metallic reinforcing core 1 and the right non-metallic reinforcing core 2 are both made of high-strength bending-resistant glass fiber material, which not only improves the tensile resistance and suspension capacity of the whole cable, but also reduces the weight of the optical cable, providing protection for the flame-retardant performance of the optical cable.

[0009] Further, the flexible water-blocking non-metallic filling layer 501 is made of aromatic polyamide synthetic fiber material, which has the characteristics of flexibility, water resistance, high flame retardance and high tensile strength, can buffer the side pressure to protect the optical fiber module, and also ensures the tensile resistance of the optical fiber module.

[0010] Further, the super-large-core-count optical fiber module 502 adopts small-size high-strength bending-resistant special optical fiber 150-200 μm, which has good bending performance and small size, can integrate a large-core-count optical fiber module, and greatly enhances the signal of optical transmission.

[0011] Further, the special optical fiber in the super-large-core-count optical fiber module 502 is further wrapped with a layer of high-strength buffer resin with uniform thickness, which not only can fix the relative position of the optical fiber module, but also can protect the internal optical fiber from being broken or damaged due to external impact.

[0012] Further, the special-shaped flame-retardant sheath 6 is integrally extruded by high-strength and high-hardness flame-retardant polyolefin material, which can meet a wide range of high and low temperature resistance, has ultraviolet radiation resistance, and has certain chemical resistance, high strength and hardness, and high flame retardance and low melting point.

[0013] Further, the overall outer diameter of the optical cable is 6*2 mm.

[0014] Compared with the prior art, the present application has the following advantages:

[0015] (1) The non-metallic reinforcing core of the present application is made of high-strength bending-resistant glass fiber material, which not only improves the tensile resistance and suspension capacity of the whole cable, but also reduces the weight of the optical cable, providing protection for the flame-retardant performance of the optical cable;

[0016] (2) The suspension groove of the present application is a semicylindrical groove uniformly arranged on the special sheath, and the radius of the groove is greater than the length of the nonmetallic reinforcing core to the edge of the special sheath by 0.5 cm-1 cm, so that the nonmetallic reinforcing core on both sides of the special sheath is hollowed out and can be used for hook suspension or fixed clamping groove to fix the position of the optical cable, without the need for other equipment to fix and tighten the optical cable, reducing the cost of construction wiring, and at the same time, due to the arrangement of the semicylindrical groove, the weight of the optical cable is smaller than that of the conventional shape, and the sheath material is also saved;

[0017] (3) The flexible water-blocking nonmetallic filling layer of the present application adopts a high-tech aromatic polyamide synthetic fiber material, which has the characteristics of flexibility, water-blocking, high flame resistance and high tensile strength, can buffer the lateral pressure and protect the optical fiber module, and also ensures the tensile resistance of the optical fiber module;

[0018] (4) The maximum core number of the super-large core number optical fiber module of the present application can reach 96 cores, which adopts a small size high strength bending resistant special optical fiber 150-200 μm, which not only has good bending performance but also small size, can integrate large core number optical fiber module, and greatly enhances the signal of optical transmission;

[0019] (5) The special optical fiber is further wrapped with a uniform thickness high strength buffer resin layer, which not only can fix the relative position of the optical fiber module, but also can protect the internal optical fiber from being broken or damaged by external impact;

[0020] (6) The special sheath of the present application is integrally extruded by high strength and hardness flame-retardant polyolefin material, which can meet the wide high and low temperature resistance range, has ultraviolet radiation resistance, and has certain chemical resistance, high strength and hardness characteristics, has high flame resistance and low melting point, meets the CPR-B level flame retardation requirement, and the overall outer diameter size of the optical cable can be 6*2 mm;

[0021] In summary, the special optical cable of the present application not only can be suspended for wiring construction and has certain tensile strength, but also can arrange up to 96 optical fibers in the optical cable, has small size and high density, and has high flame resistance, which solves the current user demand and is worth popularization and application. [DETAILED DESCRIPTION]

[0022] Figure 1 is the front view structure schematic diagram of the present application;

[0023] Figure 2 is the top view structure schematic diagram of the present application;

[0024] Figure 3 is the cross section structure schematic diagram of the present application;

[0025] In the figure: 1, left non-metallic reinforcing core 2, right non-metallic reinforcing core 3, left hanging groove 4, right hanging groove 5, light unit 501, flexible water-blocking non-metallic filling layer 502, super-large core number optical fiber module 6, special-shaped flame-retardant sheath. [DETAILED DESCRIPTION]

[0026] The application is further described below in conjunction with the accompanying drawings:

[0027] As shown in the accompanying drawings Figure 1 to the accompanying drawings Figure 3 The application provides a hanging multi-core optical cable, which comprises a left non-metallic reinforcing core 1, a right non-metallic reinforcing core 2, a left hanging groove 3, a right hanging groove 4, a light unit 5, a flexible water-blocking non-metallic filling layer 501, a super-large core number optical fiber module 502, and a special-shaped flame-retardant sheath 6. The special-shaped flame-retardant sheath 6 comprises a square light unit 5 and symmetrically arranged left and right non-metallic reinforcing cores 1 and 2, that is, the special-shaped flame-retardant sheath 6 is provided with the light unit 5 in the middle, the left and right sides of the light unit 5 are respectively provided with the left and right non-metallic reinforcing cores 1 and 2, and the light unit 5, the left and right non-metallic reinforcing cores 1 and 2 all extend along the length direction of the special-shaped flame-retardant sheath 6. The square light unit 5 comprises the flexible water-blocking non-metallic filling layer 501 and the super-large core number optical fiber module 502, and the flexible water-blocking non-metallic filling layer 501 is wrapped around the periphery of the super-large core number optical fiber module 502. The special-shaped flame-retardant sheath 6 is uniformly and spacedly provided with a plurality of semicylindrical grooves, which are referred to as the left and right hanging grooves 3 and 4, and are uniformly and spacedly arranged along the length direction of the special-shaped flame-retardant sheath 6. The left and right non-metallic reinforcing cores 1 and 2 are hollowed out on the outer sides of the special-shaped flame-retardant sheath 6 through the left and right hanging grooves 3 and 4, respectively, so as to realize hanging wiring construction.

[0028] The left and right hanging grooves 3 and 4 are semicylindrical grooves uniformly arranged on the special flame-retardant sheath 6, the radius of the semicylindrical grooves on the two sides of the special flame-retardant sheath 6 is greater than the length of the left and right nonmetallic reinforcing cores 1 and 2 to the edge of the special sheath by 0.5cm-1cm, the cross section of the special flame-retardant sheath 6 is oval, the left and right nonmetallic reinforcing cores 1 and 2 are symmetrically arranged on the upper and lower sides and are respectively located at the centers of the upper and lower semicircles of the special flame-retardant sheath 6, the left and right nonmetallic reinforcing cores 1 and 2 are high-strength bending-resistant glass fiber materials, the flexible water-blocking nonmetallic filling layer 501 is made of a high-tech aromatic polyamide synthetic fiber material, and the super-large core number optical fiber module 502 is made of small-size high-strength bending-resistant special optical fiber 150-200μm, and the special optical fiber is further wrapped with a high-strength buffer resin layer with uniform thickness.

[0029] In the application, the nonmetallic reinforcing core is a high-strength bending-resistant glass fiber material, which not only improves the tensile resistance and hanging capacity of the whole cable, but also reduces the weight of the cable and provides protection for the flame-retardant performance of the cable. The hanging groove is a semicylindrical groove uniformly arranged on the special sheath, and the radius of the groove is greater than the length of the nonmetallic reinforcing core to the edge of the special sheath by 0.5cm-1cm, so that the nonmetallic reinforcing cores hollowed out on the two sides of the special sheath can be used for hook hanging or fixed slot to fix the position of the cable, without the need for other equipment to fix and tighten the cable, thereby reducing the cost of construction wiring, and the weight of the cable is small compared with the conventional shape of the cable due to the arrangement of the semicylindrical groove, and the sheath material is also saved. The special sheath is integrally extruded by using high-strength and high-hardness flame-retardant polyolefin material, which can meet a wide range of high and low temperature resistance, has resistance to ultraviolet radiation, and has the characteristics of certain chemical resistance, high strength and hardness, high flame retardance and low melting point, meets the CPR-B level flame retardation requirement, and the overall outer diameter of the cable is 6*2mm.

[0030] The flexible water-blocking nonmetallic filling layer is made of a high-tech aromatic polyamide synthetic fiber material, has the characteristics of flexibility, water resistance, high flame retardance and high tensile strength, can buffer the side pressure to protect the optical fiber module, and also ensures the tensile resistance of the optical fiber module. The maximum core number of the super-large core number optical fiber module can reach 96 cores, and the module is made of small-size high-strength bending-resistant special optical fiber 150-200μm. The optical fiber has good bending performance and small size, can integrate a large core number optical fiber module, greatly enhances the signal of optical transmission, and the special optical fiber is further wrapped with a high-strength buffer resin layer with uniform thickness, which not only can fix the relative position of the optical fiber module, but also can protect the internal optical fiber from being broken or damaged due to external impact.

[0031] In summary, the present application comprises two non-metallic reinforcing cores, two sides of the hanging groove, light unit and special-shaped flame-retardant sheath; the special-shaped flame-retardant sheath has a middle square light unit and two sides of the symmetrically arranged two non-metallic reinforcing cores; the light unit comprises a flexible water-blocking non-metallic filling layer and a super-large core number optical fiber module; the two sides of the special-shaped flame-retardant sheath are uniformly and spacedly provided with a plurality of semicylindrical grooves, which are referred to as left and right sides of the hanging groove; the radius of the semicylindrical grooves on the two sides of the special-shaped flame-retardant sheath is greater than the length of the two non-metallic reinforcing cores to the edge of the special-shaped sheath by 0.5 cm-1 cm; and the cross section of the special-shaped sheath is oval. The hanging type multi-core optical cable can not only be suspended for wiring construction and have a certain tensile strength, but also can have up to 96 optical fibers arranged in the optical cable, has small size, high density and high flame retardance.

[0032] The present application is not limited to the above-mentioned embodiments, and any changes, modifications, substitutions, combinations and simplifications made without departing from the spirit and principles of the present application shall be equivalent replacement modes and shall be included in the protection scope of the present application.

Claims

1. A suspendable multi-core optical cable, characterized in that: The device includes a shaped flame-retardant sheath (6), in which an optical unit (5) is disposed in the middle. A left non-metallic reinforcing core (1) and a right non-metallic reinforcing core (2) are disposed on the left and right sides of the optical unit (5), respectively. The optical unit (5), the left non-metallic reinforcing core (1), and the right non-metallic reinforcing core (2) all extend along the length of the shaped flame-retardant sheath (6). The optical unit (5) includes a flexible water-blocking non-metallic filling layer (501) and an ultra-high core count optical fiber module (502). The flexible water-blocking non-metallic filling layer (501) is wrapped around the ultra-high core count optical fiber module. (502) On the periphery, the left and right sides of the irregular flame-retardant sheath (6) are respectively provided with a left hanging groove (3) and a right hanging groove (4). There are at least two left hanging grooves (3) and two right hanging grooves (4), and they are evenly spaced along the length of the irregular flame-retardant sheath (6). The left hanging groove (3) and the right hanging groove (4) are both semi-cylindrical grooves. The left non-metallic reinforcing core (1) and the right non-metallic reinforcing core (2) are hollowed out on the outside of the irregular flame-retardant sheath (6) through the left hanging groove (3) and the right hanging groove (4).

2. The suspended multi-core optical cable as described in claim 1, characterized in that: The optical unit (5) has a square longitudinal section, and the left non-metallic reinforcing core (1) and the right non-metallic reinforcing core (2) are symmetrically arranged.

3. The suspended multi-core optical cable as described in claim 1, characterized in that: The radius of several semi-cylindrical grooves on both sides of the irregular flame-retardant sheath (6) is 0.5cm-1cm greater than the length from the left non-metallic reinforcing core (1) or the right non-metallic reinforcing core (2) to the edge of the irregular flame-retardant sheath (6).

4. The suspended multi-core optical cable as described in claim 1, characterized in that: The cross-section of the irregular flame-retardant sheath (6) is elliptical, and the left non-metallic reinforcing core (1) and the right non-metallic reinforcing core (2) are located at the center of the upper and lower semicircles of the irregular flame-retardant sheath (6), respectively.

5. The suspended multi-core optical cable as described in claim 1, characterized in that: Both the left non-metallic reinforcing core (1) and the right non-metallic reinforcing core (2) are made of high-strength, bend-resistant glass fiber material.

6. The suspended multi-core optical cable as described in claim 1, characterized in that: The flexible water-blocking non-metallic filler layer (501) is made of aromatic polyamide synthetic fiber material.

7. The suspended multi-core optical cable as described in claim 1, characterized in that: The ultra-high core count fiber module (502) uses small-sized, high-strength, bend-resistant special fiber of 150-200μm.

8. The suspended multi-core optical cable as described in claim 1, characterized in that: The special optical fiber in the ultra-high core count optical fiber module (502) is also wrapped with a layer of high-strength buffer resin of uniform thickness.

9. The suspended multi-core optical cable as described in claim 1, characterized in that: The irregularly shaped flame-retardant sheath (6) is integrally extruded from a high-strength, hard flame-retardant polyolefin material.

10. The suspended multi-core optical cable as described in claim 1, characterized in that: The overall outer diameter of the optical cable is 6*2mm.

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