CN209803409U - Reinforced optical cable branching structure - Google Patents

Abstract

The utility model discloses a strenghthened type optical cable separated time structure, it is including main optical cable, the separated time goes out a plurality of sub-optical cables on the main optical cable, main optical cable with the separated time department cover of sub-optical cable is equipped with a deconcentrator, the deconcentrator is including hot plastic pipe, the branching body and clamping ring sleeve pipe, the clamping ring sleeve pipe cover tightly in main optical cable, just the clamping ring sleeve pipe is close to main optical cable with the separated time department of sub-optical cable, the branching body cover is located the outside of clamping ring sleeve pipe, just branching body cladding in main optical cable with the separated time department of sub-optical cable, hot plastic pipe cover locates the outside of the branching body, the internal spiral tubular metal resonator that is equipped with of branching, main optical cable with the separated time department of sub-optical cable is located in the spiral tubular metal. The utility model discloses can guarantee that separated time department satisfies flexibility and atress intensity requirement simultaneously to optical signal's transmission is effectual.

Description

Reinforced optical cable branching structure

Technical Field

The utility model relates to an optical cable especially relates to a strenghthened type optical cable separated time structure.

Background

In the multi-core optical cable structure in the prior art, branching needs to be led out from a main optical cable to form a single-core optical cable, a jacket of the main optical cable is cut off at the branching position in the processing process, so that a single-core sub optical cable is pulled out through a branching device, and the branching device is sleeved at the branching position of the main optical cable and the single-core sub optical cable and is encapsulated by glue. The following defects mainly exist in the branching structure: firstly, the optical cable needs to have enough extra length of optical fiber when in use so as to enable the optical fiber to move freely, thereby ensuring the optical performance of optical fiber transmission. However, in the existing structure, glue filling and packaging are performed at the branching position of the main optical cable and the sub optical cable, so that the optical fiber at the glue filling position in the optical cable is fixed, the optical performance of the optical fiber is ensured to be reduced, and the signal transmission effect of the optical fiber is influenced; secondly, aramid fiber of the single-core sub-optical cable in the existing structure is arranged in a coating layer of the sub-optical cable, and the aramid fiber can shift to cause that the outer coating layer is difficult to realize fixed length, so that the length of the single-core sub-optical cable is not controllable when branching is manufactured, and the problem of poor length consistency of branch sub-optical cables exists; in addition, the splitter used at the splitting position of the main optical cable and the sub optical cable is mainly made of plastic, and although the splitter has certain flexibility, the splitter is difficult to bear certain stress and cannot meet the requirement of stress strength.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in, to prior art's not enough, provide one kind and can guarantee that separated time department satisfies flexibility and atress intensity requirement simultaneously to optical signal's the effectual strenghthened type optical cable separated time structure of transmission.

In order to solve the technical problem, the utility model adopts the following technical scheme.

A reinforced optical cable branching structure comprises a main optical cable, wherein a plurality of sub optical cables are branched from the main optical cable, a branching device is sleeved at the branching positions of the main optical cable and the sub optical cables and comprises a thermal plastic pipe, a branching body and a pressure ring sleeve, the pressure ring sleeve is tightly sleeved on the main optical cable, the pressure ring sleeve is close to the branching positions of the main optical cable and the sub optical cables, the branching body is sleeved on the outer side of the pressure ring sleeve and is wrapped at the branching positions of the main optical cable and the sub optical cables, the thermal plastic pipe is sleeved on the outer side of the branching body, a spiral metal pipe is embedded in the branching body, and the branching positions of the main optical cable and the sub optical cables are located in the spiral metal pipe.

Preferably, the main optical cable comprises a first coating layer, a first aramid fiber, a first armor pipe and a plurality of first single-core optical fibers, the first aramid fiber is located in the first coating layer, the first armor pipe is located in the first aramid fiber, and the first single-core optical fibers are located in the first armor pipe.

Preferably, the sub-optical cable comprises a second cladding layer, a second armored pipe, a second aramid fiber and a second single-core optical fiber, the second single-core optical fiber is integrally connected with the first single-core optical fiber, the second armored pipe is located in the second cladding layer, the second aramid fiber is located in the second armored pipe, and the second single-core optical fiber is located in the second aramid fiber.

Preferably, the middle diameter of the hot plastic pipe is larger than the diameters of the two ends of the hot plastic pipe, and the branching body is accommodated in the middle of the interior of the hot plastic pipe.

Preferably, the pressure ring sleeve is a sleeve made of a metal material.

The utility model discloses an among the strenghthened type optical cable separated time structure, through set up the spiral tubular metal resonator in the separated time body, and the spiral tubular metal resonator encircle in main optical cable with the separated time department outside of sub-optical cable, under the effect of spiral tubular metal resonator, make main optical cable with the separated time department of sub-optical cable not only has sufficient flexibility, has still improved the atress intensity of separated time department greatly, and then has improved the wholeness ability of optical cable, in addition, the utility model discloses will the clamping ring sleeve cover tightly in near the tip of main optical cable can gun move because of the aramid fiber in the main optical cable, makes the optic fibre in the main optical cable have sufficient free activity space to guarantee sufficient optic fibre extra long, and then satisfied various service environment, and guaranteed the optical property and the signal transmission effect of optic fibre.

Drawings

FIG. 1 is an overall structural view of a reinforced cable branching structure;

FIG. 2 is a cross-sectional view of a reinforced cable breakout structure;

Fig. 3 is an enlarged view of a portion a in fig. 2.

Detailed Description

The present invention will be described in more detail with reference to the accompanying drawings and examples.

The utility model discloses a reinforced optical cable branching structure, which is shown in a combined figure 1 to a figure 3 and comprises a main optical cable 100, a plurality of sub-optical cables 300 are branched from the main optical cable 100, a splitter 200 is sleeved at the branching position of the main optical cable 100 and the sub-optical cables 300, the splitter 200 comprises a thermoplastic tube 201, a splitter body 202 and a pressure ring sleeve 203, the pressure ring sleeve 203 is tightly sleeved on the main optical cable 100, the pressure ring sleeve 203 is close to the branching position of the main optical cable 100 and the sub optical cable 300, the branching body 202 is sleeved outside the pressure ring sleeve 203, and the tap body 202 is wrapped at the tap of the main optical cable 100 and the sub optical cable 300, the thermoplastic pipe 201 is sleeved outside the wire-dividing body 202, a spiral metal pipe 204 is embedded in the wire-dividing body 202, the branching of the main cable 100 and the sub-cable 300 is located within the spiral metal tube 204.

In the above-mentioned structure, through set up spiral metal tube 204 in the branch body 202, and spiral metal tube 204 encircle in main optical cable 100 with the separated time department outside of sub-optical cable 300, under the effect of spiral metal tube 204, make main optical cable 100 with the separated time department of sub-optical cable 300 not only has sufficient flexibility, has still improved the stress intensity of separated time department greatly, and then improves the wholeness ability of optical cable, in addition, the utility model discloses will clamping ring sleeve 203 cover tightly in near the tip of main optical cable 100, can gun move because of the aramid fiber in main optical cable 100, make the optic fibre in main optical cable 100 have sufficient free activity space to guarantee sufficient optic fibre excess length, and then satisfied various service environment, and guaranteed the optical property and the signal transmission effect of optic fibre.

Regarding the specific structure of the main optical cable 100, in this embodiment, the main optical cable 100 includes a first cladding 104, a first aramid fiber 103, a first armor tube 102, and a plurality of first single-core optical fibers 101, where the first aramid fiber 103 is located in the first cladding 104, the first armor tube 102 is located in the first aramid fiber 103, and the first single-core optical fiber 101 is located in the first armor tube 102.

regarding the specific structure of the sub optical cable 300, in the present embodiment, the sub optical cable 300 includes a second cladding layer 301, a second armor tube 302, a second aramid fiber 303, and a second single-core optical fiber 304, the second single-core optical fiber 304 is integrally connected to the first single-core optical fiber 101, the second armor tube 302 is located in the second cladding layer 301, the second aramid fiber 303 is located in the second armor tube 302, and the second single-core optical fiber 304 is located in the second aramid fiber 303. In the sub-optical cable 300, the structure of the sub-optical cable 300 from outside to inside is the second cladding layer 301, the second armor tube 302, the second aramid fiber 303 and the second single-core optical fiber 304, the second single-core optical fiber 304 and the second aramid fiber 303 are located in the second armor tube 302, the second armor tube 302 and the second cladding layer 301 are integrated, the second cladding layer 301 and the thermoplastic rubber tube 201 are fixed, the length of the outer second cladding layer 301 can be fixed, and when a technician makes branching, the length of each single-core sub-optical cable is controllable, so that the length consistency of the branch sub-optical cables is effectively ensured.

preferably, the middle diameter of the thermoplastic pipe 201 is larger than the diameters of the two ends, and the shunt body 202 is accommodated in the middle of the inside of the thermoplastic pipe 201. The pressure ring sleeve 203 is made of metal.

The above is only the embodiment of the present invention, and is not intended to limit the present invention, and all modifications, equivalent replacements or improvements made within the technical scope of the present invention should be included within the protection scope of the present invention.

Claims (5)

1. A reinforced optical cable branching structure is characterized by comprising a main optical cable (100), wherein a plurality of sub optical cables (300) are branched from the main optical cable (100), a branching device (200) is sleeved at the branching position of the main optical cable (100) and the sub optical cables (300), the branching device (200) comprises a thermoplastic pipe (201), a branching body (202) and a pressing ring sleeve (203), the pressing ring sleeve (203) is tightly sleeved on the main optical cable (100), the pressing ring sleeve (203) is close to the branching position of the main optical cable (100) and the sub optical cables (300), the branching body (202) is sleeved on the outer side of the pressing ring sleeve (203), the branching body (202) is wrapped at the branching position of the main optical cable (100) and the sub optical cables (300), the thermoplastic pipe (201) is sleeved on the outer side of the branching body (202), and the spiral metal pipe (204) is embedded in the branching body (202), the branching position of the main optical cable (100) and the sub optical cable (300) is positioned in the spiral metal tube (204).

2. The ruggedized cable breakout structure of claim 1, wherein the primary cable comprises a first jacket (104), a first aramid (103), a first armor tube (102), and a plurality of first single core optical fibers (101), wherein the first aramid (103) is disposed within the first jacket (104), wherein the first armor tube (102) is disposed within the first aramid (103), and wherein the first single core optical fibers (101) are disposed within the first armor tube (102).

3. The ruggedized fiber optic cable breakout structure of claim 2, wherein the sub-cable (300) includes a second cladding layer (301), a second armor tube (302), a second aramid (303), and a second single core optical fiber (304), the second single core optical fiber (304) being integrally connected to the first single core optical fiber (101), the second armor tube (302) being positioned within the second cladding layer (301), the second aramid (303) being positioned within the second armor tube (302), the second single core optical fiber (304) being positioned within the second aramid (303).

4. The enhanced cable breakout structure of claim 1, wherein the thermoplastic tube (201) has a larger diameter at the middle than at the ends, and the breakout body (202) is received in the interior middle of the thermoplastic tube (201).

5. The enhanced fiber optic cable breakout structure of claim 1, wherein the crimp sleeves (203) are metal sleeves.