CN104375248A - Two-side ADSS (all-dielectric self-supporting optic fiber cable) tension clamp and application thereof - Google Patents

Abstract

The invention discloses a double-sided tension clamp for ADSS optical cable and its application. The side pre-twisted wire groups are respectively equipped with parallel groove clamps to form the left and right cable outlet gaps; the two top facing ADSS optical cables are respectively wound with inner twisted wires to form an ADSS with a protective structure Optical cable tension fittings; double-sided ADSS optical cable tension clamps are set in the left pre-twisted wire group and right pre-twisted wire group respectively, and the top of the ADSS optical cable with protective structure Pass through the left cable outlet gap and the right cable outlet gap respectively, thereby forming a suspended butt joint structure of two ADSS optical cables whose tops face each other. The invention can improve the efficiency of ADSS optical cable emergency repair operation and reduce the cost of ADSS optical cable emergency repair operation.

Description

Bilateral ADSS Optical Cable Tension Clamp and Its Application

technical field

The invention relates to the field of ADSS optical cable communication, in particular to a double-sided ADSS optical cable strain clamp and its application.

Background technique

Most of the currently running ADSS optical cables pass through hilly and mountainous areas, and there are more than ten optical cable failures caused by squirrels biting the fiber core of ADSS optical cables every year. Due to unfavorable factors such as unreserved lines for ADSS optical cables and inability to bear force at the optical cable joint box, the construction of emergency repair ADSS optical cables is complicated. The traditional emergency repair process needs to cast 1-2 line span ADSS optical cables, and the fusion splicing repair can only be performed after the optical cables are fastened. The emergency repair is restricted by the terrain and environment, which requires a lot of manpower and material resources, and the work period for the repair of the optical cable is long, which affects the safe operation of the optical communication network.

Contents of the invention

In order to overcome the shortcomings of the existing technology, the present invention provides a double-sided ADSS optical cable strain clamp and its application, in order to realize the suspended connection of ADSS optical cables, thereby improving the efficiency of ADSS optical cable repair operations and reducing ADSS optical cable repair operations. cost.

The present invention adopts following technical scheme for solving technical problems:

The present invention is a kind of double-sided ADSS optical cable tension clamp, which is applied on two ADSS optical cables whose top ends face each other. The wire group is divided into the bilateral structure of the left pre-twisted wire group and the right pre-twisted wire group; parallel groove lines are respectively arranged on the left pre-twisted wire group and the right pre-twisted wire group near the two ends of the middle receiving rod Clamp, so that the left pre-twisted wire group and the right pre-twisted wire group are formed into an upper and lower pre-twisted wire structure, thereby forming a left cable outlet gap and a right cable outlet gap;

Inner twisted wires are respectively wound on the two ADSS optical cables with opposite ends to form an ADSS optical cable with a protective structure;

The double-sided ADSS optical cable tension clamp is set in the left pre-twisted wire group and the right pre-twisted wire group respectively with the ADSS optical cable with the protective structure, and with the said protective structure The top ends of the ADSS optical cables pass through the left cable exit gap and the right cable exit gap respectively, thereby forming a suspended butt joint structure of the two ADSS optical cables whose top ends face each other.

The structural feature of the double-sided ADSS optical cable strain clamp of the present invention is also that: an optical cable joint box is suspended on the intermediate receiving rod.

The construction method of a kind of double-sided ADSS optical cable strain clamp of the present invention is characterized in that it is carried out according to the following steps:

Step 1. Set an intermediate receiving rod on the tensile pre-twisted wire group to limit the position, forming the left pre-twisted wire group and the right pre-twisted wire group;

Step 2. On the left pre-twisted wire group and the right pre-twisted wire group, use parallel trench wire clamps to align the left pre-twisted wire group and the right side of the middle receiving rod respectively. The pre-twisted wire group adjusts the gap between the upper and lower structures to form a left cable outlet gap and a right cable outlet gap;

Step 3. Wrap the inner skeins on the two ADSS optical cables with opposite tops that need to be docked to form a bilateral inner skein structure of the left inner skein optical cable and the right inner skein optical cable;

Step 4. Wrap the left pre-twisted wire group and the right pre-twisted wire group on the left inner skeined wire optical cable and the right inner skeined wire optical cable respectively; The top ends of the silk optical cables pass through the left cable outlet gap and the right cable outlet gap respectively;

Step 5. After the left inner stranded optical cable and the right inner stranded optical cable are suspended in the air, the left pre-twisted wire group and the right pre-twisted wire group respectively generate grips on the optical cables inside; thereby tightening the The two ADSS optical cables with the tops facing each other realize the suspended docking.

Compared with the prior art, the beneficial effects of the present invention are reflected in:

1. The double-sided ADSS optical cable strain clamp designed by the present invention can use the left pre-twisted wire group and the right pre-twisted wire group to generate grip on two opposite optical cables at the same time, thereby realizing the suspended connection of ADSS optical cables, which overcomes the traditional The advanced ADSS strain clamp only has one side pre-twisted wire, one end holds the optical cable, and the other end is fixed on the pole tower, which cannot simultaneously generate grip force on two opposite optical cables; the designed grip force of the clamp reaches 95% of the ADSS calculated breaking force above.

2. The present invention is equipped with an intermediate receiving rod; the joint box can also be suspended on the intermediate receiving rod after the two ends of the optical cable are welded, which solves the problem that the joint box cannot be suspended under force after the intermediate butt joint of the ADSS optical cable; at the same time, the intermediate receiving rod can also be used As the fulcrum of the clamp, use the suspension clamp (or other hardware) to hang on the tower.

3. The present invention adopts an integrated design, which is firm and reliable, and can withstand strong tension. Compared with traditional ADSS optical cable fittings, it has a wide range of applications; especially in the process of repairing ADSS optical cables, using this clamp, as long as the optical cable is disconnected and landed, it can be used to supplement new cables for optical cable fusion operations, thereby achieving rapid repair; changed the past It is necessary to cast 1-2 line span ADSS optical cables first, and the operation process of welding repair can only be carried out after the optical cables are fastened. Fundamentally save repair time, improve repair efficiency, and save repair costs.

Description of drawings

Fig. 1 is the structure schematic diagram of bilateral tension pre-twisted wire group of the present invention;

Fig. 2 is the schematic diagram of the structure of twisted wire in both sides of the present invention;

Fig. 3 is a schematic diagram of assembly of the present invention;

Labels in the figure: 1 middle receiving rod; 2a left pre-twisted wire group; 2b right pre-twisted wire group; 3 parallel groove clamp; 4 inner twisted wire; 4a left inner twisted fiber optic cable; 4b right inner twisted fiber optic cable; 5a Left cable outlet gap; 5b Right cable outlet gap; 6ADSS optical cable; 7 Optical cable splice box.

Detailed ways

In the present embodiment, as shown in Figure 3, the composition of a kind of double-sided ADSS optical cable strain clamp comprises double-sided tensile pre-twisted wire group, double-sided tensile inner twisted wire and parallel groove clamp 3, is applied in two On the ADSS optical cable 6 facing the top, the double-sided tensile pre-twisted wire is composed of the left pre-twisted wire group 2a, the right pre-twisted wire group 2b and the middle receiving rod 1. 3 As an accessory of the wire clamp; as shown in Figure 1, an intermediate receiving rod 1 is set on the tension pre-twisted wire group, so that the tension-resistant pre-twisted wire group is divided into the left pre-twisted wire group 2a and the right pre-twisted wire The bilateral structure of group 2b; the middle receiving rod 1 can be used to suspend the optical cable splice box 7; it can also be used as the fulcrum of the clamp, and be hung on the tower by using the suspension clamp (or other fittings).

On the left pre-twisted wire group and the right pre-twisted wire group near the two ends of the middle receiving rod 1, parallel groove clamps 3 are respectively arranged, so that the left pre-twisted wire group 2a and the right pre-twisted wire group 2b are divided into upper and lower Pre-twisted wire structure, thereby forming the left cable outlet gap 5a and the right cable outlet gap 5b; used to prevent the ADSS optical cable 6 from being pinched.

As shown in Figure 2, two inner twisted wires 4 are wound on the two ADSS optical cables facing each other to form ADSS optical cable tension fittings with a protective structure;

The double-sided ADSS optical cable tension clamp is to set the ADSS optical cable with protective structure in the left pre-twisted wire group 2a and the right pre-twisted wire group 2b respectively, and pass through the top of the ADSS optical cable with protective structure respectively. The left cable outlet gap 5a and the right cable outlet gap 5b are used to connect two ADSS optical cables whose top ends are facing each other through the optical cable joint box 7; thereby forming a suspended butt joint structure of the ADSS optical cable 6.

A construction method of double-sided ADSS optical cable tension clamp is carried out according to the following steps:

Step 1. Set an intermediate receiving rod 1 on the tension-resistant pre-twisted wire group to limit the position, forming the left pre-twisted wire group 2a and the right pre-twisted wire group 2b; an optical cable splice box is suspended on the middle receiving rod 1 7. After the optical cable is welded on the spot at the breakpoint, the optical cable joint box 7 is not affected by the tension, and is suspended on the middle receiving rod 1 .

Step 2. On the left pre-twisted wire group 2a and the right pre-twisted wire group 2b, use parallel groove clamps 3 to pair the left pre-twisted wire group 2a and the right pre-twisted wire group 2a and the right pre-twisted wire The twisted wire group 2b adjusts the gap of the upper and lower structures, thereby forming the left cable outlet gap 5a and the right cable outlet gap 5b, ensuring a certain space for the pre-twisted wire group to prevent the outer sheath of the ADSS optical cable from being pinched by the pre-twisted wire group;

Step 3. Wrap the inner skeins 4 on the two ADSS optical cables 6 with opposite tops that need to be docked, respectively, to form a bilateral inner skein structure of the left inner skein optical cable 4a and the right inner skein optical cable 4b;

Step 4, wind the left side pre-twisted wire group 2a and the right side pre-twisted wire group 2b on the left inner twisted wire optical cable 4a and the right inner twisted wire optical cable 4b respectively; and make the left inner twisted wire optical cable 4a and the right inner twisted wire The top end of the optical cable 4b passes through the left cable outlet gap 5a and the right cable outlet gap 5b inside the parallel groove clamp 3 respectively;

Step 5. After the left inner twisted optical cable 4a and the right inner twisted optical cable 4a are taken up and suspended, use the principle that the pre-twisted wire group is pulled tighter and tighter; after the optical cable is tightened by the wire tensioner, the left pre-twisted wire group 2a and the right pre-twisted wire group 2a respectively generate grip on the optical cables inside; hold the optical cables on the left and right sides tightly to withstand the tension of the optical cables; thereby tighten the two ADSS optical cables 6 facing each other at the top and connect them through the optical cable splice box 7 to achieve Docking in the air; pre-twisted wires should not damage the outer sheath of the optical cable after tightening the optical cable.

Claims (3)

1. A kind of double-sided type ADSS optical cable strain clamp is applied on the ADSS optical cables (6) that two tops face each other. The tension-resistant pre-twisted wire group is a bilateral structure of the left side pre-twisted wire group (2a) and the right side pre-twisted wire group (2b); (2a) and the right pre-twisted wire group (2b) are respectively provided with parallel ditch clamps (3), so that the left pre-twisted wire group (2a) and the right pre-twisted wire group (2b) are divided into upper and lower Pre-twisted wire structure, thus forming the left cable outlet gap (5a) and the right cable outlet gap (5b); Inner twisted wires (4) are respectively wound on the two ADSS optical cables (6) whose top ends face each other to form an ADSS optical cable with a protective structure; The double-sided ADSS optical cable strain clamps are respectively arranged in the left pre-twisted wire group (2a) and the right side pre-twisted wire group (2b) with the ADSS optical cable with the protective structure, and the The top ends of the ADSS optical cables with protective structures pass through the left cable outlet gap (5a) and the right cable outlet gap (5b) respectively, thereby forming a suspended butt joint structure of the two ADSS optical cables (6) whose top ends face each other. 2. The double-sided ADSS optical cable tension clamp according to claim 1, characterized in that: an optical cable splice box (7) is suspended on the intermediate receiving rod (1). 3. A construction method of double-sided ADSS optical cable tension clamp, characterized in that it is carried out as follows: Step 1, setting an intermediate receiving rod (1) on the tension pre-twisted wire group for limiting, forming the left pre-twisted wire group (2a) and the right pre-twisted wire group (2b); Step 2. On the left pre-twisted wire group (2a) and the right pre-twisted wire group (2b), use parallel groove clamps (3) at the positions close to the middle receiving rod (1) respectively Adjusting the upper and lower gaps of the left pre-twisted wire group (2a) and the right pre-twisted wire group (2b) to form a left cable outlet gap (5a) and a right cable outlet gap (5b); Step 3. Wrap the inner skeins (4) on the two ADSS optical cables (6) whose tops are opposite to each other to be docked, respectively, to form a bilateral inner skein of the left inner skein optical cable (4a) and the right inner skein optical cable (4b) silk structure; Step 4, winding the left side pre-twisted wire group (2a) and the right side pre-twisted wire group (2b) on the left inner skeined wire optical cable (4a) and the right inner skeined wire optical cable (4b) respectively; and Make the top ends of the left inner stranded optical cable (4a) and the right inner stranded optical cable (4b) pass through the left cable outlet gap (5a) and the right cable outlet gap (5b) respectively; Step 5. After the left inner stranded optical cable (4a) and the right inner stranded optical cable (4b) are taken up and suspended, the left pre-twisted group (2a) and the right pre-twisted group (2b) are respectively The optical cables inside it generate grip force; thereby tightening the two ADSS optical cables (6) whose top ends face each other to realize the suspended docking.