CN211426872U

CN211426872U - Optical fiber cable protection device

Info

Publication number: CN211426872U
Application number: CN201922230428.6U
Authority: CN
Inventors: 曹付强
Original assignee: Henan Huidong Engineering Co ltd
Current assignee: Henan Huidong Engineering Co ltd
Priority date: 2019-12-13
Filing date: 2019-12-13
Publication date: 2020-09-04
Anticipated expiration: 2029-12-13

Abstract

The utility model relates to an optical fiber communication technology field specifically discloses an optical fiber cable protection device. Including the straight tube say and the fold pipeline, the straight tube say with fold pipeline cross arrangement, be equipped with a plurality of scalable folds on the fold pipeline, the fold pipeline is including receiving the pipeline, fiber connector and can with receiving pipeline complex insert the pipeline, the end circumference equipartition of receiving the pipeline is porose, the end circumference equipartition of inserting the pipeline has compressible fixture block, fiber connector one end circumference equipartition is porose, fiber connector other end circumference equipartition has the fixture block, the fold pipeline adopts the limited flexible material of tension, fold pipeline inner wall scribbles water-absorbing resin and water-blocking powder. Aims to solve the problem that the traditional turning is easy to break.

Description

Optical fiber cable protection device

Technical Field

The utility model relates to an optical fiber communication technology field specifically discloses an optical fiber cable protection device.

Background

Optical fibers are short for optical fibers, and are fibers made of glass or plastic that can be used as a light conducting means. The fine optical fiber is enclosed in a plastic sheath so that it can be bent without breaking. Generally, a Light Emitting Diode (LED) or a laser beam is used as a transmitter at one end of the optical fiber to transmit an optical pulse to the optical fiber, and a photosensor is used as a receiver at the other end of the optical fiber to detect the pulse. The optical fiber is composed of two layers of glass with different refractive indexes. The inner layer is an optical inner core, the diameter of the inner layer is several micrometers to dozens of micrometers, and the diameter of the outer layer is 0.1-0.2 mm. Typically, the refractive index of the core glass is 1% greater than that of the outer glass. According to the principle of refraction and total reflection of light, when the angle of light striking the interface of the inner core and the outer layer is larger than the critical angle for generating total reflection, the light can not pass through the interface and is totally reflected.

In general, the terms optical fiber and optical cable are to be confused. Most optical fibers must be covered by several layers of protective structures before use, and the covered cables are referred to as fiber optic cables. The protective layer and the insulating layer on the outer layer of the optical fiber can prevent the surrounding environment from damaging the optical fiber, such as water, fire, electric shock and the like. The optical cable is divided into: cable sheath, aramid fiber silk, buffer layer and optic fibre. Optical fibers are similar to coaxial cables except that there is no mesh shielding and a light transmitting glass core is in the center.

Optical fibers may be used in communication technology. The optical cable made of multimode optical fibre can be used for communication, its conduction performance is good, transmission information capacity is large, one channel can simultaneously accommodate tens of people to talk, and can simultaneously transmit tens of sets of TV programs for free watching.

In the multimode optical fiber, the core diameter is 50 μm and 62.5 μm, which are approximately equivalent to the thickness of human hair. Whereas the diameter of the single-mode optical fiber core is 8 μm to 10 μm, 9/125 μm is generally used. The core is surrounded by a glass envelope, commonly referred to as a cladding, of lower refractive index than the core, which keeps the light rays within the core. Further on the outside is a thin plastic outer jacket, i.e. a coating, for protecting the cladding. The optical fibers are typically bundled and protected by an outer jacket. The core is usually a double-walled concentric cylinder of small cross-sectional area made of silica glass, which is brittle and easily broken, and therefore requires the addition of a protective layer.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problem that the traditional turning is easy to break.

In order to achieve the purpose, the basic scheme of the utility model provides an optical fiber cable protection device, which comprises a straight pipeline and a corrugated pipeline, wherein the straight pipeline and the corrugated pipeline are arranged in a crossed manner, the corrugated pipeline comprises a receiving pipeline, an optical fiber connector and an inserting pipeline which can be matched with the receiving pipeline, holes are uniformly distributed at the end of the receiving pipeline in the circumferential direction, compressible clamping blocks are uniformly distributed at the end of the inserting pipeline in the circumferential direction, holes are uniformly distributed at one end of the optical fiber connector in the circumferential direction, and clamping blocks are uniformly distributed at the other end of the optical;

the corrugated pipeline is made of flexible materials with limited tension, and the inner wall of the corrugated pipeline is coated with water-absorbing resin and water-blocking powder.

The principle and effect of this basic scheme lie in:

1. the fold pipeline is used for bending the optical fiber, the optical fiber is easy to break at a corner, the optical fiber is easy to damage through bending the straight pipeline, the fold pipeline can be bent randomly in all directions through the self telescopic characteristic, but the bending angle of the internal optical fiber can not be so large, so that the effect of protecting the bending position of the optical fiber is achieved, the tension of the fold pipeline is limited, and therefore when the fold pipeline is completely stretched and reaches the maximum tension, the optical fiber is still in a safety stage, and the effect that the optical fiber is not subjected to the maximum tension exceeding the self can be achieved.

2. The optical fiber connector is arranged in the middle of the corrugated pipeline, the optical fiber can be divided into two sections, the position with the largest bending angle is connected by the optical fiber connector, the optical fiber connector can be detached, the receiving pipeline and the inserting pipeline of the corrugated pipeline can be directly matched, and the optical fiber connector is not arranged.

3. Be equipped with the hole on the receiving tube way of fold pipeline, be equipped with compressible fixture block on inserting the pipeline, will insert during the pipeline inserts the receiving tube way when connecting, the fixture block is in compression state, the fixture block pops out when the fixture block is aimed at the hole, the card is downthehole, play the effect of connecting the chucking, fiber connector both ends are equipped with hole and fixture block, can with receiving tube way and insert the pipe fit, connect in the middle of two pipelines, the connection can be dismantled to the fold pipeline, can change after making the turning of optic fibre go wrong and get rid of the place that has a problem, and more convenient change and maintenance.

4. The inner wall of the folded pipeline is coated with water-absorbent resin, the water-absorbent resin can quickly absorb water which is several times heavier than the self weight, and the water-blocking powder can immediately expand gel when meeting water, no matter how much pressure water is applied, the high water-absorbent resin of the wound part can play a sealing effect due to expansion, and the high water-absorbent resin can prevent water from entering to the minimum, so that the waterproof effect is achieved on the optical fiber.

5. Compared with the prior art, the device overcomes the defect that the optical fiber at the bent part is easy to damage and the problem that the tensile force applied to the optical fiber cannot be overlarge, protects the optical fiber in the use or arrangement process, and improves the utilization rate and reliability of the optical fiber.

Further, the maximum stretching tension of the folded pipeline is not more than 80% of the allowable tension of the optical fiber, and the instantaneous maximum tension is not more than 90% of the allowable tension of the optical fiber. The fiber is still in a safe state when the corrugated tubing has been stretched to a maximum value.

Furthermore, factice is filled between the corrugated pipeline and the optical fiber. The optical fiber is protected, the bending loss is reduced, the transmission performance such as optical fiber attenuation is not influenced, and the waterproofness is improved.

Further, the optical fiber connector is arc-shaped. The optical fiber connector is used at the position with the largest bending angle, and the optical fiber is protected from bending loss.

Furthermore, the insertion pipeline and the optical fiber connector are provided with sliding grooves for sliding of the clamping blocks, the clamping blocks are connected in the sliding grooves in a sliding mode, springs are arranged at the bottom ends of the clamping blocks, and free ends of the springs are fixedly connected with the sliding grooves.

Drawings

Fig. 1 is a front view of an optical fiber cable protection device according to an embodiment of the present invention;

fig. 2 is a partial schematic view of a receiving pipe of an optical fiber cable protection device according to an embodiment of the present invention;

fig. 3 is a partial schematic view of an insertion tube of an optical fiber cable protection device according to an embodiment of the present invention;

fig. 4 is a partial schematic view of an optical fiber connector of an optical fiber cable protection device according to an embodiment of the present invention.

Detailed Description

The following is further detailed by the specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a straight pipe 1, a corrugated pipe 2, a receiving pipe 3, an inserting pipe 4, a hole 5, a fixture block 6 and an optical fiber receiver 7.

An embodiment of an optical fiber cable protection device is shown in fig. 1. Including straight pipeline way 1 and fold pipeline 2, the straight pipeline way 1 sets up with fold pipeline 2 alternately, be equipped with a plurality of scalable folds on the fold pipeline 2, fold pipeline 2 is including receiving pipeline 3, fiber connector and can insert pipeline 4 with receiving pipeline 3 complex, the implementation is shown in fig. 2, the porose 5 of end circumference equipartition of receiving pipeline 3, the implementation is shown in fig. 3, the end circumference equipartition that inserts pipeline 4 has fixture block 6, be equipped with on inserting pipeline 4 and the fiber connector 7 and supply the gliding spout of

fixture block

6, 6 sliding connection of fixture block are in the spout, 6 ends of fixture block are equipped with the spring, spring free end and spout rigid coupling. The embodiment is shown in fig. 4, holes 5 are uniformly distributed in the circumferential direction of one end, connected with an insertion pipeline 4, of an optical fiber connector, compressible clamping blocks 6 are uniformly distributed in the circumferential direction of one end, connected with a receiving pipeline 3, of the optical fiber connector, the optical fiber connector is arc-shaped and has a certain bending angle, the maximum tensile tension of the corrugated pipeline 2 is not more than 80% of the allowable tension of the optical fiber, the instantaneous maximum tension of the corrugated pipeline 2 is not more than 90% of the allowable tension of the optical fiber, water-absorbing resin and water-blocking powder are coated on the inner wall of the corrugated pipeline.

When the device is put into use, the corrugated pipeline 2 is used at a place needing to be bent, the optical fiber is easy to break at the bend by using the straight pipeline 1, the corrugated pipeline 2 can be randomly bent towards all directions by adopting the telescopic characteristic of the corrugated pipeline 2, so that the bending loss of the optical fiber in the corrugated pipeline is reduced, the corrugated pipeline 2 is made of a material of which the maximum tensile tension does not exceed the allowable tension of the optical fiber to a certain limit, the pipeline reaches the maximum value when being subjected to a large tensile force, and the optical fiber is at a safe value and cannot be lost,

the optical fiber connector is arranged in the middle of the folded pipeline 2, the optical fiber can be divided into two sections, the position with the largest bending angle is connected by the optical fiber connector, the receiving pipeline 3 of the folded pipeline 2 is provided with a hole 5, the inserting pipeline 4 is provided with a compressible clamping block 6, the inserting pipeline 4 is inserted into the receiving pipeline 3 during connection, the clamping block 6 is in a compressed state, when the clamping block 6 is aligned with the hole 5, the clamping block 6 is popped out and clamped in the hole 5 to play a role of connecting and clamping, the holes 5 and the clamping blocks 6 are arranged at the two ends of the optical fiber connector 7 and can be matched with the receiving pipeline 3 and the inserting pipeline 4 to be connected between the two pipelines, the optical fiber connector 7 can be disassembled, the receiving pipeline 3 and the inserting pipeline 4 of the folded pipeline 2 can also be directly matched, the optical fiber connector 7 is not arranged, the folded pipeline 2 can be disassembled and connected, the defect that the optical fiber at the bent part is easy to damage and the problem that the tensile force applied to the optical fiber cannot be overlarge are overcome, the optical fiber is protected in the using or arranging process, and the using rate and the reliability of the optical fiber are improved.

The inner wall of the folded pipeline 2 is coated with water-absorbing resin, the water-absorbing resin can rapidly absorb water which is several times heavier than the self weight, and the water-blocking powder can immediately expand gel when meeting water, no matter how much pressure water is applied, the high water-absorbing resin of the wound part can play a sealing effect due to expansion, the water can be prevented from entering to the minimum, and the waterproof effect is achieved on the optical fiber.

The above description is only for the embodiments of the present invention, and the common general knowledge of the known specific structures and characteristics in the schemes is not described herein too much, and those skilled in the art will know all the common technical knowledge in the technical field of the present invention before the application date or the priority date, can know all the prior art in this field, and have the ability to apply the conventional experimental means before this date, and those skilled in the art can combine their own ability to perfect and implement the schemes, and some typical known structures or known methods should not become obstacles for those skilled in the art to implement the present application. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. An optical fiber cable protection device is characterized by comprising a straight pipeline and a corrugated pipeline, wherein the straight pipeline and the corrugated pipeline are arranged in a crossed mode, a plurality of telescopic corrugations are arranged on the corrugated pipeline, the corrugated pipeline comprises a receiving pipeline, an optical fiber connector and an inserting pipeline which can be matched with the receiving pipeline, holes are uniformly distributed in the circumferential direction of the end head of the receiving pipeline, compressible clamping blocks are uniformly distributed in the circumferential direction of the end head of the inserting pipeline, holes are uniformly distributed in the circumferential direction of one end of the optical fiber connector, and clamping blocks are uniformly distributed in the circumferential direction of the;

2. A fiber optic cable protection device according to claim 1, wherein: the maximum stretching tension of the folded pipeline is not more than 80% of the allowable tension of the optical fiber, and the instantaneous maximum tension is not more than 90% of the allowable tension of the optical fiber.

3. A fiber optic cable protection device according to claim 1, wherein: ointment is filled between the corrugated pipeline and the optical fiber.

4. A fiber optic cable protection device according to claim 1, wherein: the optical fiber connector is arc-shaped.

5. A fiber optic cable protection device according to claim 1, wherein: the insertion pipeline and the optical fiber connector are provided with sliding grooves for the sliding of the clamping blocks, the clamping blocks are connected in the sliding grooves in a sliding mode, springs are arranged at the bottom ends of the clamping blocks, and the free ends of the springs are fixedly connected with the sliding grooves.