CN212781397U

CN212781397U - Optical cable opening protection architecture

Info

Publication number: CN212781397U
Application number: CN202021626332.8U
Authority: CN
Inventors: 陈俊杰
Original assignee: Shenzhen Hengjie Optical Communication Technology Co ltd
Current assignee: Shenzhen Hengjie Optical Communication Technology Co ltd
Priority date: 2020-08-05
Filing date: 2020-08-05
Publication date: 2021-03-23
Anticipated expiration: 2030-08-05

Abstract

The utility model relates to an optical cable opening protection architecture. The opening of the optical cable divides the optical cable into two independent sides, and the optical cables on the two sides are connected through the internal fiber core. The protective structure comprises an elongated inner tube having a cross-section of Contraband. The optical cable is arranged in the inner tube along the length direction, the inner tube is sleeved at the opening corresponding to the optical cable, and the two ends of the inner tube respectively clamp the corresponding optical cable. The utility model discloses an inner tube is fixed with opening both sides cable clamp for the both sides optical cable forms firm fixed connection, forms effective protection to the cable opening part, does not let the fibre core atress, effectively protects the fibre core, avoids appearing the condition of fracture, harm, makes to last effective use after seting up the optical cable opening, has improved the optical cable durability. Meanwhile, the outer tube and the thermal shrinkage belt are arranged to wrap the optical cable and the inner tube, so that the all-round protection effect is achieved, the protection is improved, and the requirement for laying the optical cable is met.

Description

Optical cable opening protection architecture

Technical Field

The utility model relates to an optical cable appurtenance especially relates to an optical cable opening protection architecture.

Background

Fiber optic cables are manufactured to meet optical, mechanical, or environmental performance specifications and utilize one or more optical fibers disposed in a covering jacket as the transmission medium and may be used individually or in groups as telecommunication cable assemblies. The optical cable is a communication line which is formed by a certain number of optical fibers into a cable core in a certain mode, is externally coated with a sheath, and is also coated with an outer protective layer for realizing optical signal transmission. When laying a cable, the core and the outer jacket are sometimes cut at a certain position of the cable, and an opening of the cable is formed to expose the inner core for related operations. After the optical cable opening is formed by cutting, only a plurality of fiber cores inside the optical cable on two sides are left for connection, and the connection is easy to break and fail, so that a protection structure needs to be developed for protection.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's above defect, and provide an optical cable opening protection architecture to form effective protection to the optical cable opening part, the condition of fracture, harm avoids appearing in the protection fibre core.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides an optical cable opening protection architecture, the opening of optical cable is cut apart into independent both sides with the optical cable, and the optical cable of both sides passes through inside fibre core and connects, and protection architecture includes that the cross-section is Contraband type's rectangular shape inner tube, and the optical cable is put into in the inner tube along length direction, and the inner tube cover is at the opening part that corresponds the optical cable and the optical cable that the clamp corresponds respectively at inner tube both ends.

The inner tube is made of aluminum.

The two ends of the inner pipe are respectively provided with a bendable first clamping plate, each end of the inner pipe is at least provided with two first clamping plates, and one side wall of each end is at least provided with one first clamping plate.

The first clamping plates on the opposite side walls are staggered from each other in the length direction of the inner pipe in the same end of the inner pipe.

The protection structure also comprises an elongated outer tube with the section of Contraband, and the outer tube is sleeved outside the inner tube to surround a pipeline cavity with the square section to wrap the optical cable.

The protection structure also comprises a thermal shrinkage belt, and the thermal shrinkage belt is wound on the outer surface of the outer pipe and the inner pipe and the surface of the outer side optical cable which is not wrapped by the outer pipe and the inner pipe.

The protection structure also comprises a branch protective tube which is used for being sleeved on the fiber core extracted from the opening of the optical cable to play a protection role. The inner tube is also provided with a second clamping plate for clamping the branch protective tube and the fiber core.

The optical cable is an optical cable with a reinforced core, and the side wall of the inner tube is provided with at least one notch; when the reinforced core is sheared, the optical cable is placed into the inner tube and simultaneously abuts against the bottom surface of the inner tube and the side wall with the notch, the notch corresponds to one side, to be sheared, of the reinforced core of the optical cable, the notch is used for enabling a cutter head of a shearing cutter to be inserted and positioned, and the depth of the notch does not exceed a fiber core in the optical cable or a fiber core peripheral armor tube. The optical cable is a butterfly-shaped optical cable.

Compared with the prior art, the utility model beneficial effect be: through the inner tube with opening both sides cable clamp fastening fixed for the both sides optical cable forms firm fixed connection, forms effective protection to the cable opening part, does not let the fibre core atress, effectively protects the fibre core, avoids appearing the condition of fracture, harm, makes to set up and to last effective use after the optical cable opening, has improved the optical cable durability. Meanwhile, the outer tube and the thermal shrinkage belt are arranged to wrap the optical cable and the inner tube, so that the all-round protection effect is achieved, the protection is improved, and the requirement for laying the optical cable is met.

Drawings

Fig. 1 is an exploded view of a protection structure according to a first embodiment of the present invention.

Fig. 2 is a perspective view of the inner tube according to the first embodiment of the present invention.

Fig. 3 is a sectional view of the inner tube according to the first embodiment of the present invention when used for assisting in cutting the optical cable.

Fig. 4 is an exploded view of a protective structure according to a second embodiment of the present invention.

It should be noted that, the products shown in the above views are all appropriately reduced/enlarged according to the size of the drawing and the clear view, and the size of the products shown in the views is not limited.

Detailed Description

In order to more fully understand the technical content of the present invention, the technical solution of the present invention will be further described and explained with reference to the specific embodiments.

First embodiment

A first embodiment is a cable opening protection structure. As shown in fig. 1, the opening 31 of the optical cable 30 divides the optical cable 30 into two separate sides, and the two side optical cables 30 are connected by the inner plurality of cores 32. The protective structure comprises an elongated inner tube 10 having a section of Contraband and an elongated outer tube 20 having a section of Contraband. The inner tube 10 and the outer tube 20 are made of aluminum. The optical cable 30 is inserted into the inner tube 10 in a length direction, and the inner tube 10 is fitted at the opening 31 of the corresponding optical cable 30 and both ends of the inner tube 10 clamp the corresponding optical cable 30, respectively. The outer tube 20 is used for being sleeved outside the inner tube 10 to enclose a tube cavity with a square cross section to wrap the optical cable 30. Specifically, two ends of the inner tube 10 are respectively provided with a bendable first clamping plate 111, each end of the inner tube 10 is provided with two first clamping plates 111, and one side wall 11 of each end is provided with one first clamping plate 111. In addition, the first clamping plates 111 on the opposite side walls 11 are staggered in the longitudinal direction of the inner tube 10 at the same end of the inner tube 10, so that the first clamping plates 111 are prevented from interfering with each other when being bent.

The state of fig. 1 is that the optical cable 30 has been placed in the inner tube 10, and then the first clamping plates 111 at both ends are bent inward by pliers, and the optical cable 30 is clamped by the first clamping plates 111 and the bottom surface 12 of the inner tube 10. After the first clamping plates 111 are all bent and clamp the optical cable 30, the outer tube 20 is moved close to the inner tube 10 along the side wall 11 of the inner tube 10 and the inner tube 10 is gradually inserted into the outer tube 20 from the outside, so that the opening of the inner tube 10 is covered by the side wall of the outer tube 20 and the optical cable 30 in the inner tube 10 is not exposed. For ease of installation, the fit of the outer tube 20 to the inner tube 10 is a clearance fit, for which reason the protective structure also includes a heat shrink band (not shown). A heat shrinkable tape is wrapped around the outer surface of the outer tube 20, the inner tube 10 and the surface of the outer cable 30 not covered by the outer tube 20 and the inner tube 10, and then a suitable amount of heat (such as baking with a lighter) is applied to the heat shrinkable tape to shrink the heat shrinkable tape so that the inner structure is tightly wrapped by the heat shrinkable tape.

As shown in FIG. 1, the first embodiment cable 30 is a butterfly cable with two strength cores 34. As shown in fig. 2, the sidewall 11 of the inner tube 10 is provided with a notch 112. When the strength member 34 is cut, as shown in FIG. 3, the optical fiber cable 30 is inserted into the inner tube 10 while being pressed against the bottom surface 12 of the inner tube 10 and the side wall 11 with the notches 112. The notch 112 corresponds to the side of the core 34 of the cable 30 to be cut. The notch 112 is used for inserting and positioning the cutting head 41 of the cutting tool 40. The depth of the notch 112 corresponds to a position A which does not exceed the peripheral armor tube 33 of the fiber core 32 in the optical cable 30, so that the shearing cutter 40 is prevented from shearing the peripheral armor tube 33 of the fiber core 32. In the state of fig. 3, the cutting blade 40 is inserted into the notch 112 and cut, and the cutting blade 40 cuts only the reinforcing core 34 and the surrounding rubber 35. After cutting one side of the strength member 34 in fig. 3, the cable 30 is inverted and the other side of the strength member 34 and surrounding encapsulant 35 are cut at the same location in the same manner, and then twisting the cable 30 about the cut location twists the remaining encapsulant to form an opening 31 in the cable 30 and expose the inner core 32 and the armor tube 33 (the armor tube in the opening 31 has been removed in fig. 1).

In other embodiments, if the cable core is not jacketed on its periphery, the notch depth corresponds to a location that does not exceed the core of the cable when sheared.

Second embodiment

The second embodiment is also a cable opening protection structure. As shown in fig. 4, the opening 31 of the optical cable 30 divides the optical cable 30 into two separate sides, and the two side optical cables 30 are connected by the inner plurality of cores 32. The protective structure comprises an elongated inner tube 10 having a section of Contraband and an elongated outer tube 20 having a section of Contraband. The inner tube 10 and the outer tube 20 are made of aluminum. The optical cable 30 is inserted into the inner tube 10 in a length direction, and the inner tube 10 is fitted at the opening 31 of the corresponding optical cable 30 and both ends of the inner tube 10 clamp the corresponding optical cable 30, respectively. The outer tube 20 is used for being sleeved outside the inner tube 10 to enclose a tube cavity with a square cross section to wrap the optical cable 30. Specifically, two ends of the inner tube 10 are respectively provided with a bendable first clamping plate 111, each end of the inner tube 10 is provided with two first clamping plates 111, and one side wall 11 of each end is provided with one first clamping plate 111. In addition, the first clamping plates 111 on the opposite side walls 11 are staggered in the longitudinal direction of the inner tube 10 at the same end of the inner tube 10, so that the first clamping plates 111 are prevented from interfering with each other when being bent.

The state of fig. 4 is that the optical cable 30 has been placed in the inner tube 10, and then the first clamping plates 111 at both ends are bent inward by pliers, and the optical cable 30 is clamped by the first clamping plates 111 and the bottom surface 12 of the inner tube 10. After bending and clamping the optical cables 30 by the first clamping plates 111, the outer tube 20 is adjacent to the inner tube 10 along the sidewall of the inner tube 10 and gradually sleeves the inner tube 10 into the outer tube 20 from the outside, so that the opening of the inner tube 10 is covered by the sidewall of the outer tube 20 and the optical cables 30 in the inner tube 10 are not exposed. For ease of installation, the fit of the outer tube 20 to the inner tube 10 is a clearance fit, for which reason the protective structure also includes a heat shrink band (not shown). A heat shrinkable tape is wrapped around the outer surface of the outer tube 20, the inner tube 10 and the surface of the outer cable 30 not covered by the outer tube 20 and the inner tube 10, and then a suitable amount of heat (such as baking with a lighter) is applied to the heat shrinkable tape to shrink the heat shrinkable tape so that the inner structure is tightly wrapped by the heat shrinkable tape.

In addition, as shown in FIG. 4, a single core 321 is drawn out of the cable 30 at the opening 31. For this purpose, the protective structure also comprises a branch protective tube 21. The branch protective tube 31 is used to cover the fiber core 321 drawn out from the opening 31 of the optical cable 30 for protection. Two opposite second clamping plates 113 are further arranged at one end of the inner tube 10, and the branch protective tube 21 and the single fiber core 321 can be clamped in the inner tube 10 by bending the second clamping plates 113 inwards by using pliers, so that a better protection effect is achieved.

The above description is only for the purpose of illustrating the technical content of the present invention by way of example, so as to facilitate the understanding of the reader, but does not represent that the embodiments of the present invention are limited thereto, and any technical extension or re-creation according to the present invention is protected by the present invention.

Claims

1. The utility model provides an optical cable opening protection architecture, its characterized in that, the opening of optical cable is cut apart into independent both sides with the optical cable, both sides the optical cable passes through inside fibre core and connects, protection architecture includes that the cross-section is Contraband type's rectangular shape inner tube, the optical cable is put into in the inner tube along length direction, the inner tube cover is at the opening part that corresponds the optical cable and the optical cable that the clamp corresponds respectively at inner tube both ends.

2. The optical cable opening protection structure as claimed in claim 1, wherein said inner tube is made of an aluminum material.

3. The optical cable opening protection structure as claimed in claim 1, wherein two ends of said inner tube are respectively provided with a bendable first clamping plate, at least two said first clamping plates are provided at each end of said inner tube, and at least one said first clamping plate is provided at a sidewall of each end.

4. The cable opening protection structure of claim 3, wherein the first clamping plates on the opposite side walls are offset from each other in the longitudinal direction of the inner tube in the same end of the inner tube.

5. The cable opening protection structure of claim 1, further comprising an elongated outer tube having a cross-section of Contraband, said outer tube being adapted to fit over the inner tube to enclose the cable in a square cross-section duct chamber.

6. The cable opening protection structure of claim 5, further comprising a heat-shrinkable tape wrapped around the outer tube, the outer surface of the inner tube, and the outer cable surface not covered by the outer tube and the inner tube.

7. The optical cable opening protection structure of claim 1, further comprising a branch protection tube for covering the core drawn out from the opening of the optical cable for protection.

8. The cable vent protection structure of claim 7, wherein said inner tube is further provided with a second clamping plate for clamping said branch protection tube and said core.

9. The cable opening protection structure of claim 1, wherein the cable is a cable with a strength member, and the inner tube side wall is provided with at least one notch; when the reinforced core is sheared, the optical cable is placed into the inner tube and simultaneously abuts against the bottom surface of the inner tube and the side wall with the notch, the notch corresponds to one side, to be sheared, of the reinforced core of the optical cable, the notch is used for allowing a cutter head of a shearing cutter to be inserted and positioned, and the depth of the notch does not exceed a fiber core in the optical cable or a peripheral armor tube of the fiber core.

10. The optical cable opening protection structure of claim 9, wherein the optical cable is a butterfly cable.