CN209992715U - Light-armored double waterproof jumper wire - Google Patents

Abstract

The utility model relates to a wire jumper technical field especially relates to a dual waterproof wire jumper of light armor. This dual waterproof wire jumper of light armor includes the optical cable body and sets up respectively in the fiber connector at optical cable body both ends, the optical cable body is by interior optical fiber layer, fire-retardant layer, armor and the waterproof layer of including in proper order outside to, the armor includes the steel mesh cover and the annular connecting network of a plurality of round platform shapes, the lower bottom of steel screen panel with the outer ring end of connecting network is connected, the upper end with the inner ring end of connecting network is connected, the mesh of steel screen panel and connecting network is regular hexagon. It has both excellent mechanical properties and water resistance.

Description

Light-armored double waterproof jumper wire

Technical Field

The utility model relates to a wire jumper technical field especially relates to a dual waterproof wire jumper of light armor.

Background

The optical fiber jumper is used for making a jumper connection from equipment to an optical fiber wiring link, the optical fiber jumper is characterized in that connector plugs are arranged at two ends of an optical cable and used for realizing movable connection of a light path, the connector is a device for performing detachable (movable) connection between optical fibers, and two end faces of the optical fibers are precisely butted together, so that light energy output by the transmitting optical fibers can be coupled into the receiving optical fibers to the maximum extent, and the influence on a system caused by the optical fiber jumper intervening in the optical link is minimized; the optical fiber connector can be divided into common single-mode and multi-mode connectors of silicon-based optical fibers according to different transmission media, and other optical fiber connectors taking plastic and the like as transmission media; according to the connector structural style can be divided into: FC. SC, ST, LC, D4, DIN, MU, MT and the like.

However, the existing optical fiber patch cord has insufficient waterproof performance or mechanical performance, and a communication optical fiber patch cord capable of satisfying the waterproof performance and the mechanical performance is urgently needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the above problem, a have outstanding mechanical properties and waterproof performance's dual waterproof wire jumper of light armor concurrently is provided.

The utility model provides a technical scheme of problem provides a dual waterproof wire jumper of light armor, include the optical cable body and set up respectively in the fiber connector at optical cable body both ends, the optical cable body is by interior optical fiber layer, fire-retardant layer, armor and the waterproof layer of including in proper order outside to, the armor includes the steel mesh cover and the annular connecting net of a plurality of round platform shapes, the lower bottom of steel mesh cover with the outer ring end of connecting net is connected, is gone up the bottom and the inner ring end of connecting net is connected, the mesh of steel mesh cover and connecting net is regular hexagon.

Preferably, the flame-retardant layer is a halogen-free low-smoke flame-retardant cross-linked polyolefin sleeve.

Preferably, the waterproof layer includes silica gel layer and sprays in the waterproof rete of silica gel layer inner wall.

Preferably, the opening direction of the meshes of the connecting net is parallel to the axial direction of the steel net cover.

Preferably, still include secondary waterproof component, secondary waterproof component is located including the cover the optical cable body, with waterproof layer integrated into one piece and be equipped with the toper cover of toper external screw thread, the cover is located fiber connector's fixed cover and with fixed cover integrated into one piece, be equipped with the seal cover with the internal thread hole that toper external screw thread cooperation is connected.

Preferably, the internal threaded hole is a straight threaded hole or a conical internal threaded hole.

Preferably, the secondary waterproof assembly further comprises a movable sleeve arranged on the movable sleeve of the optical fiber connector, the fixed sleeve is provided with a through hole for the movable sleeve to penetrate, one end of the movable sleeve is connected with the inner wall of the fixed sleeve through an elastic part, and the other end of the movable sleeve is vertically provided with a waterproof clamping pad.

Preferably, the outer wall of the optical fiber connector is provided with a sliding groove, and the movable sleeve is provided with a protruding strip which can be inserted into the sliding groove to slide.

Preferably, the outer wall of the movable sleeve is provided with a plurality of grooves for draining water.

The utility model has the advantages that:

1. the armor layer is made of stainless steel and has good mechanical property; the smaller end and the larger end of the round-table-shaped steel mesh enclosure are connected, so that the round-table-shaped steel mesh enclosure does not affect the bending of the optical cable body, and has a certain extension margin, and the tensile damage of the optical cable body is relieved; the regular hexagonal meshes are arranged, so that the weight problem caused by the stainless steel material is reduced, and the mechanical property of the stainless steel material is further enhanced under the action of the dispersing force of the honeycomb structure.

2. The junction of fiber connector and optical cable body, with the junction of transceiver set up secondary waterproof assembly, further improve water-proof effects.

Drawings

FIG. 1 is a schematic structural diagram of a light-armored double waterproof patch cord;

FIG. 2 is a cross-sectional view of a light armored double waterproof jumper cable body;

FIG. 3 is a schematic structural diagram of a light-armored double waterproof jumper armor layer;

in the figure: the optical fiber cable comprises a cable body 10, an optical fiber layer 11, a flame retardant layer 12, an armor layer 13, a steel mesh cover 13a, a connecting mesh 13b, a waterproof layer 14, an optical fiber connector 20, a tapered sleeve 31, a fixed sleeve 32, a sealing sleeve 33, a movable sleeve 34, a groove 34a, an elastic part 35 and a waterproof clamping pad 36.

Detailed Description

The following are embodiments of the present invention and the accompanying drawings are used to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

A light armored double waterproof patch cord, as shown in fig. 1, fig. 2 and fig. 3, includes an optical cable body 10 and optical fiber connectors 20 respectively disposed at two ends of the optical cable body 10. The optical cable body 10 sequentially comprises an optical fiber layer 11, a flame retardant layer 12, an armor layer 13 and a waterproof layer 14 from inside to outside, the armor layer 13 comprises a plurality of truncated cone-shaped steel mesh covers 13a and an annular connecting net 13b, the lower bottom end of each steel mesh cover 13a is connected with the outer ring end of the connecting net 13b, the upper bottom end of each steel mesh cover is connected with the inner ring end of the connecting net 13b, and the meshes of the steel mesh covers 13a and the connecting net 13b are regular hexagons.

The armor layer 13 enables the jumper wire to have good mechanical performance through the material of stainless steel. The smaller end and the larger end of the truncated cone-shaped steel mesh cover 13a are connected through the connecting mesh 13b, so that the armor layer 13 has a room for bending when the optical cable body 10 is bent, and the bending of the optical cable body 10 is not hindered; meanwhile, the steel mesh covers 13a connected in sequence have a certain extension and stretching scope, so that damage to the optical cable body 10 when being stretched is reduced. The steel mesh cover 13a and the connecting mesh 13b are also provided with regular hexagonal meshes, so that the weight problem caused by the stainless steel material is reduced, and the mechanical property of the stainless steel mesh cover is further enhanced by the action of the dispersing force of the honeycomb structure.

The opening direction of the meshes of the connecting net 13b is parallel to the axial direction of the steel mesh cover 13a, so as to disperse the force applied to the optical cable body 10 in the direction perpendicular to the body.

The flame-retardant layer 12 is a halogen-free low-smoke flame-retardant cross-linked polyolefin sleeve, which has a good flame-retardant effect and can be adhered to the steel mesh cover 13a to form a compact metal oxide crust to further retard flame even if melted at an excessively high temperature.

The waterproof layer 14 includes a silica gel layer and a waterproof film layer sprayed on an inner wall of the silica gel layer. This is the first heavy waterproof construction, still includes secondary waterproof assembly, and secondary waterproof assembly is including the optical cable body 10 of locating, with waterproof layer 14 integrated into one piece and be equipped with the toper cover 31 of toper external screw thread, the fixed cover 32 of locating optical fiber connector 20 of cover and with fixed cover 32 integrated into one piece, be equipped with the seal cover 33 with the internal thread hole that the toper external screw thread cooperation is connected. The internal thread hole is a straight thread hole or a conical internal thread hole.

When the taper sleeve 31 and the sealing sleeve 33 are in threaded connection, due to the arrangement of the taper external threads, at least one circle of threads at the joint between the taper external threads and the internal thread hole are seized, so that the purpose of sealing the joint between the optical cable body 10 and the optical fiber connector 20 is achieved, and the effect of preventing water from entering the joint is achieved.

In addition, the optical fiber connector 20 and the transceiver need to be waterproof, so the secondary waterproof assembly further includes a movable sleeve 34 movably sleeved on the optical fiber connector 20, the fixed sleeve 32 is provided with a through hole for the movable sleeve 34 to penetrate through, one end of the movable sleeve 34 is connected with the inner wall of the fixed sleeve 32 through an elastic member 35, and the other end is vertically provided with a waterproof clamping pad 36.

During the process of inserting the plug of the optical fiber connector 20 into the transceiver and approaching the transceiver, the solid portion of the transceiver pushes the waterproof clamping pad 36 and the movable sleeve 34 to move toward the fixed sleeve 32, and after the plug is inserted into the transceiver, the waterproof clamping pad 36 is clamped between the optical fiber connector 20 and the transceiver, thereby sealing the connection between the optical fiber connector 20 and the transceiver and preventing water from entering the connection.

Further, the outer wall of the movable sleeve 34 is provided with a plurality of grooves 34a for draining water, and the water can be drained through the grooves 34a when water is splashed between the optical cable connector 20 and the transceiver.

In addition, in order to facilitate the sliding of the movable sleeve 34 on the outer wall of the optical fiber connector 20, the outer wall of the optical fiber connector 20 is provided with a sliding groove, and the movable sleeve 34 is provided with a protruding strip which can be inserted into the sliding groove to slide.

The light armored double waterproof jumper wire is prepared by the following method:

(1) preparing a cable, namely preparing a prefabricated rod core rod with a core region and a deep fluorine-permeated depressed cladding by adopting a plasma chemical vapor deposition method to obtain an optical fiber with ultralow attenuation and bending strength; sheathing a flame-retardant layer, an armor layer and a waterproof layer outside the optical fiber in sequence to obtain an optical cable body; the preparation method of the waterproof layer comprises the following steps: using hydrochloric acid as a catalyst, slowly adding sodium silicate into distilled water, keeping the temperature at 4-6 ℃, reacting for 1-2h, returning to room temperature, extracting with tetrahydrofuran to obtain a polysilicic acid solution, adding HMDS at room temperature, reflecting for 2-3h, aging to obtain modified silica sol, coating the inner wall of a silica gel sleeve with glue, drying at room temperature to form a film, keeping the temperature at 180-220 ℃ for 50-70min, and cooling to room temperature to obtain the waterproof layer;

(2) cutting the cable, namely cutting the optical cable body by using a special cable cutting machine, wherein the cutting length is 1.01-1.02 times of the length of the required jumper;

(3) fiber arrangement: stripping the rubber layer and the armor layer at the end part of the optical cable body to expose the optical fibers, and arranging the optical fibers according to the optical fiber chromatogram;

(4) fiber penetration and solidification: shearing the optical fibers by using a Kevlar scissors, injecting glue into the optical fiber jack at a pressure of 4.5-5.5g/cm2, uniformly sucking out the glue by using a glue sucking machine, penetrating the optical fibers into the corresponding MT ferrule, and placing the optical fibers on a high-temperature curing furnace for curing after glue is supplemented if necessary, wherein the curing temperature is 90-110 ℃, and the curing time is 12-18 min;

(5) grinding: processing redundant curing glue on the connecting head by using sand paper, sequentially carrying out coarse grinding for 45-55s, middle grinding for 110-130s, fine grinding for 110-130s, high grinding for 110-130s optical fibers and polishing for 120-180s, and finally covering a dust cap;

(6) assembling: and (3) assembling a fiber connector at the end part of the optical cable body, and assembling a secondary waterproof assembly to obtain the light-armored double waterproof jumper wire.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims (9)

1. The utility model provides a dual waterproof wire jumper of light armor, includes optical cable body (10) and sets up respectively in optical fiber connector (20) at optical cable body (10) both ends, its characterized in that: optical cable body (10) include optic fibre layer (11), fire-retardant layer (12), armor (13) and waterproof layer (14) by inside to outside in proper order, armor (13) include steel screen panel (13 a) and annular connecting network (13 b) of a plurality of round platform shapes, the lower bottom of steel screen panel (13 a) with the outer loop end of connecting network (13 b) is connected, is gone up the bottom and the inner ring end of connecting network (13 b) is connected, the mesh of steel screen panel (13 a) and connecting network (13 b) is regular hexagon.

2. The light armor double waterproof jumper of claim 1, wherein: the flame-retardant layer (12) is a halogen-free low-smoke flame-retardant cross-linked polyolefin sleeve.

3. The light armor double waterproof jumper of claim 1, wherein: the waterproof layer (14) comprises a silica gel layer and a waterproof film layer sprayed on the inner wall of the silica gel layer.

4. The light armor double waterproof jumper of claim 1, wherein: the opening direction of the meshes of the connecting net (13 b) is parallel to the axial direction of the steel net cover (13 a).

5. The light armor double waterproof jumper of claim 1, wherein: still include secondary waterproof component, secondary waterproof component is located including the cover optical cable body (10), with waterproof layer (14) integrated into one piece and be equipped with toper cover (31) of toper external screw thread, the cover is located fixed cover (32) of fiber connector (20) and with fixed cover (32) integrated into one piece, be equipped with seal cover (33) with the internal thread hole that toper external screw thread cooperation is connected.

6. The light armor double waterproof jumper of claim 5, wherein: the internal thread hole is a straight thread hole or a conical internal thread hole.

7. The light armor double waterproof jumper of claim 5, wherein: the secondary waterproof assembly further comprises a movable sleeve (34) of the optical fiber connector (20), the fixed sleeve (32) is provided with a through hole for the movable sleeve (34) to penetrate, one end of the movable sleeve (34) is connected with the inner wall of the fixed sleeve (32) through an elastic piece (35), and the other end of the movable sleeve is vertically provided with a waterproof clamping pad (36).

8. The light armor double watertight jumper of claim 7, wherein: the outer wall of the optical fiber connector (20) is provided with a sliding groove, and the movable sleeve (34) is provided with a protruding strip which can be inserted into the sliding groove to slide.

9. The light armor double watertight jumper of claim 7, wherein: the outer wall of the movable sleeve (34) is provided with a plurality of grooves (34 a) for draining water.

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