CN114185142A

CN114185142A - Pretermination optical cable assembly and optical cable overhead laying method

Info

Publication number: CN114185142A
Application number: CN202210144216.XA
Authority: CN
Inventors: 曹利华; 祝辉; 孔光; 宋元新; 沈镇江; 江辉
Original assignee: Everpro Technologies Wuhan Co Ltd
Current assignee: Everpro Technologies Wuhan Co Ltd
Priority date: 2022-02-17
Filing date: 2022-02-17
Publication date: 2022-03-15

Abstract

The invention relates to a pre-terminated optical cable assembly and an optical cable overhead laying method, wherein the pre-terminated optical cable assembly comprises the following components: one end or two ends of the optical cable are connected with an optical fiber connector; and the pulling rope connecting piece is at least arranged on the optical cable and is provided with the end part of the optical fiber connector, and the pulling rope connecting piece is used for connecting a pulling rope so as to pull the optical cable to move and adjust. The optical fiber connector is preassembled at the corresponding end of the optical cable in advance, when the optical fiber connector is applied to optical fiber home construction, the optical fiber connector can be directly butted with the adaptive connector, optical fiber fusion splicing butt joint or on-site wiring is not needed on site, and the construction efficiency is high. Moreover, the corresponding haulage rope connecting piece that sets up on the optical cable, when aerial laying optical cable, make things convenient for operating personnel or unmanned aerial vehicle to pass through the haulage rope tractive and remove the optical cable, and then be convenient for adjust optical fiber connector to suitable butt joint position.

Description

Pretermination optical cable assembly and optical cable overhead laying method

Technical Field

The present invention relates generally to the field of fiber optic cable connections. More particularly, the present invention relates to a preterminated cable assembly and a method of aerial cable installation.

Background

In the optical fiber house-entry project, an outdoor optical cable is generally laid from a telegraph pole to an optical cable house-entry point such as a fiber splitting box, and then one end of the outdoor optical cable is butted with a local-end optical cable at the telegraph pole in a fusion mode, and the other end of the outdoor optical cable is butted with an optical fiber led out from the fiber splitting box in the fusion mode.

When the outdoor optical cable is laid conventionally, the optical cable is pulled on the ground, time and labor are wasted, the optical cable can be laid by matching several people, and the optical cable is easy to damage in the pulling process. When the optical cable is dragged to the right position, the optical cable needs to be stripped firstly, then the optical cable is connected into the fiber distribution box in a fusion splicing butt joint mode through fusion splicing equipment, and then the optical cable is connected with user equipment through an optical fiber jumper. When butt-jointed optical cables are welded, not only is a constructor required to have higher technical skills, but also welding equipment needs to be configured, so that the construction efficiency is low, and the construction cost is higher.

Disclosure of Invention

The invention provides a pre-terminated optical cable assembly which can be applied to an optical cable laying scene in optical fiber home-entering engineering and solves the technical problem of low construction efficiency when optical cables are connected in a fusion splicing and butt joint mode in the prior art. Further, the invention also provides an aerial cable laying method for laying the pre-terminated cable assembly.

Specifically, a first aspect of the present invention provides a preterminated fiber optic cable assembly comprising: one end or two ends of the optical cable are connected with an optical fiber connector; and the hauling rope connecting piece is at least arranged on the optical cable and is provided with the end part of the optical fiber connector, and the hauling rope connecting piece is used for connecting a hauling rope so as to conveniently draw the optical cable to move and adjust.

As a further improvement, the optical fiber connectors and the pull rope connectors at the same end of the optical cable are sequentially distributed at intervals in the extending direction of the optical cable, the distribution direction of the optical fiber connectors and the pull rope connectors at the same end of the optical cable is defined as a front-back direction, the pull rope connectors are arranged behind the corresponding optical fiber connectors at the same end of the optical cable, and the pull rope connectors are provided with stopping parts which are arranged backwards and used for being matched with the corresponding preset stopping parts in a stopping manner when the optical cable is laid, so that the movement adjusting range of the optical cable is limited when the optical cable is pulled to move backwards.

In a further improvement, the pull-cord connector has a cable through-hole, and the cable is fixedly inserted into the cable through-hole.

As a further improvement, the hauling cable connecting piece is provided with a pressed deformation body, an optical cable through hole is formed in the pressed deformation body, the optical cable is fixedly arranged in the optical cable through hole in a penetrating mode, and the hauling cable connecting piece is further provided with an extrusion fastening structure used for extruding the pressed deformation body to deform so as to fix the optical cable.

As a further improvement, the haulage rope connecting piece has the suit and is in the main cover body on the optical cable, it is located to receive the extrusion deformation body in the main cover body, the optical cable is perforated to follow the axial extension of the main cover body, the extrusion fastening structure includes the locking elastic arm that is equipped with on the main cover body with be used for forcing the locking elastic arm oppression receive the fastener that the extrusion deformation body warp, this fastener can dismantle the fastening assembly and be in on the main cover body.

As a further improvement, a plurality of locking elastic arms are arranged at one axial end of the main sleeve body along the circumferential direction of the main sleeve body, each locking elastic arm extends along the axial direction of the main sleeve body, and the fastening piece is a nut which is assembled on the main sleeve body in a fastening mode through threads so as to force the locking elastic arms to be retracted.

As a further improvement, a pulling rope through hole for threading the pulling rope is further arranged on the extruded deformation body, and the pulling rope through hole and the optical cable through hole extend in parallel.

The second aspect of the present invention provides an aerial cable installation method for aerial installation of a preterminated optical cable assembly according to any one of the above-mentioned aspects, comprising the steps of:

s1: suspending a fiber optic cable of the preterminated cable assembly by a start point suspension member suspended at a cable launch point, the fiber optic cable being relatively movably threaded through the start point suspension member.

S2: the cable is suspended from a start point suspension member to a cable run termination point and suspended by a termination suspension member suspended from the cable run termination point, the cable being relatively movably threaded through the termination suspension member.

S3: and pulling the optical cable to move relative to the starting point suspension member and the ending point suspension member by using a pulling rope connected to a pulling rope connecting member arranged at the corresponding end of the optical cable so as to adjust the position of the optical cable.

As a further improvement, the start point suspension member and/or the end point suspension member has a support pulley that rollingly supports the optical cable.

As a further improvement, when the two ends of the optical cable are respectively provided with the pull rope connectors, the two pull rope connectors are correspondingly positioned on the two opposite sides of the starting point suspension member and the ending point suspension member, and the two pull rope connectors are used for being in stop fit with the starting point suspension member and the ending point suspension member so as to prevent the optical cable from falling off from the starting point suspension member and the ending point suspension member when the optical cable is pulled and moved.

In a further improvement, the starting point suspension member and the ending point suspension member are respectively provided with a channel for guiding the movement of the optical cable, the starting point suspension member and the ending point suspension member are detachably or movably provided with a set baffle forming a part of a side wall of the channel, and when the set baffle is detached from the corresponding suspension member or moved to a set position, an opening can be formed on the corresponding suspension member so as to facilitate the access of the optical cable.

As a further improvement, the optical cable laying starting point is located at an outdoor telegraph pole, and the optical cable laying terminal point is located at an optical cable home-entry point, so that optical fiber home-entry construction is carried out by the optical cable overhead laying method.

The beneficial effects are that: the optical fiber connector can be directly preassembled at the corresponding end of the optical cable in a factory, and when the optical fiber connector is applied to optical fiber home construction, the optical fiber connector can be directly butted with the adapter connector, optical fiber fusion splicing butt joint or on-site wiring is not needed on site, and the construction efficiency is high. Moreover, the corresponding haulage rope connecting piece of installing on the optical cable, when aerial laying optical cable, make things convenient for operating personnel to utilize the haulage rope tractive to remove the optical cable or utilize the haulage rope tractive by unmanned aerial vehicle at the low place to remove the optical cable, and then be convenient for adjust suitable butt joint position with fiber connector.

In some embodiments, the pulling rope connecting pieces are arranged behind the corresponding optical fiber connectors, and the pulling rope connecting pieces are provided with backward stop parts, so that when the optical cable is laid and needs to be moved to adjust the position of the optical cable, the stop parts can be in stop fit with the preset stop parts to limit the backward moving range of the optical cable, and the optical cable is prevented from being excessively moved to damage the optical fiber connectors arranged at the end parts.

In some embodiments, the flexible deformation body of the hauling rope connecting piece is provided with an optical cable through hole and a hauling rope through hole, so that the optical cable and the hauling rope can be conveniently threaded on the flexible deformation body, and the optical cable and the hauling rope can be conveniently connected on the hauling rope connecting piece.

According to the aerial laying method of the optical cable, the optical cable is hung by using the starting point hanging piece at the laying starting point of the optical cable, so that the optical cable is conveniently dragged to the laying terminal position of the optical cable in an aerial mode. The optical cable is hung at the optical cable laying terminal point by the terminal point hanging piece, and meanwhile, the optical cable is pulled by the pulling rope so that the optical cable moves relatively on the starting point hanging piece and the terminal point hanging piece, an operator can conveniently adjust the position of the optical cable at a low position, and the optical cable laying efficiency can be effectively improved.

In some embodiments, when the optical cable both ends were equipped with the haulage rope connecting piece respectively, can adopt the haulage rope to make a round trip the tractive optical cable at the optical cable both ends and remove the adjustment, constructor just can the tractive adjustment in low department, need not climb to the eminence operation again, and then can adjust the optical cable to suitable position very conveniently for whole efficiency of construction is high, can effectively reduce construction cost, reduces construction safety risk.

In addition, the two pull rope connecting pieces are matched with the stop parts of the corresponding hanging parts, so that the range of the optical cable which is pulled and moved can be controlled, the optical fiber connector arranged at the end part due to the transition movement of the optical cable is prevented from being collided by the corresponding hanging parts serving as the preset stop parts, and the optical fiber connector can be effectively protected. And moreover, the hauling rope connecting piece is in stop fit with the corresponding suspension piece, so that one end of the optical cable can be effectively prevented from falling off from the corresponding suspension piece, the optical fiber connector can be protected, accidents caused by aerial laying of the optical cable can be avoided, and the construction safety is improved.

Drawings

Several embodiments of the present invention are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings and in which like reference numerals refer to similar or corresponding parts and in which:

FIG. 1 is a schematic block diagram illustrating one embodiment of a preterminated fiber optic cable assembly provided by the present invention;

FIG. 2 is a schematic view of the optical cable, pull cord connector and fiber optic connector of FIG. 1 in mating relationship;

FIG. 3 is a schematic illustration of the configuration of the pull-cord coupler of FIG. 1;

FIG. 4 is an exploded view of the pull-cord coupling of FIG. 3;

FIG. 5 is a schematic view of the pre-terminated cable assembly of FIG. 1 as it is threaded through a termination hanger;

FIG. 6 is a schematic view of a termination hanger engaged with a pull-cord coupler stop at a respective end;

fig. 7 is a schematic view of the set-up flap of the end suspension of fig. 5 moved to a set-up open position to form an opening in the end suspension.

Description of reference numerals:

11. an optical cable; 12. a pull-cord connector; 121. a main sleeve body; 122. a compression-deformed body; 123. a nut; 124. locking the elastic arm; 125. perforating a traction rope; 126. perforating the optical cable; 127. a convex edge; 13. a hauling rope; 14. a terminal suspension member; 141. hooking; 142. setting a baffle; 143. a bolt; 144. a support pulley; 145. a main body baffle; 112. a cable branch point; 113. an optical fiber connector.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it should be understood by those skilled in the art that the embodiments described below are some embodiments of the present disclosure, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In view of the low construction efficiency of the fusion spliced optical cable during the fiber-to-the-home construction, the invention provides a pretermination optical cable assembly with optical fiber connectors, and the optical fiber connectors respectively connected with the two ends of the optical cable are butted with corresponding adaptive connectors when the optical cable is laid from the optical cable laying starting point to the optical cable laying end point. And the optical fiber welding butt joint is not required on the construction site, the on-site quick connector is also not required, the construction efficiency is high, and the cost is low.

Additionally, the present invention provides a preterminated cable assembly wherein a pull cord connector is also provided at a respective end of the cable. When laying the optical cable subassembly of pretermination in place on the air, utilize the haulage rope tractive of connecting on the haulage rope connecting piece to remove the position of adjustment optical cable, guarantee that the optical fiber connector of the corresponding end of optical cable can remove preset assembly position to in inserting with corresponding adapter connector and join in marriage, and then can effectively improve assembly efficiency.

Having described the general principles of the invention, various non-limiting embodiments of the invention are described in detail below. Any number of elements in the drawings are by way of example and not by way of limitation, and any nomenclature is used solely for differentiation and not by way of limitation.

The principles and spirit of the present invention are explained in detail below with reference to several representative embodiments of the invention.

As shown in fig. 1, the preterminated optical cable assembly provided by the present invention includes an optical cable 11, both ends of which are respectively connected with an optical fiber connector 113 for transmitting optical signals, and both ends of the optical cable 11 are respectively and fixedly provided with a pulling rope connector 12, and a pulling rope 13 is connected to the pulling rope connector 12 in advance. When the pre-terminated optical cable assembly is laid in place in an overhead mode, a constructor pulls the optical cable to move and adjust at a low position through the pulling rope 13, and the optical fiber connector 113 is conveniently moved to a set splicing position, so that the optical fiber connector 113 is conveniently spliced with the adaptive connector normally.

Specifically, the optical fiber connectors 113 at both ends are in communication with corresponding optical fibers extending from the respective ends of the optical cable 11 to transmit optical signals when the optical fiber connectors 113 are plugged with the adapter connector. The optical fiber connectors at both ends can be matched with different types of connectors according to specific construction requirements, for example, when the optical fiber connector is applied to a network equipment end, the optical fiber connector can specifically adopt an SC connector or an MT connector. And when the optical fiber connector is applied to the wiring equipment end, the ST connector can be selected as the optical fiber connector. Those skilled in the art can select the corresponding type of optical fiber connector according to the actual application scenario to ensure the normal use of the preterminated optical cable assembly.

In the present invention, the fiber optic connectors 113 may be pre-assembled directly at the corresponding end of the fiber optic cable 11 at the factory. When the optical cable is laid in the air, the optical fiber connector can be directly butted with the corresponding adaptive connector, the butt joint of fusion splicing or on-site wiring is not needed, and the construction efficiency can be effectively improved.

As shown in fig. 1, in order to easily pull and move the optical cable 11 when laying the optical cable in place, the pull rope coupling members 12 are respectively coupled to both ends of the optical cable 11 corresponding to the optical fiber connectors 113 at both ends. The pull rope connector 12 is fixedly connected to the optical cable 11 and is used for connecting a pull rope 13 so as to facilitate the operator to pull and move the optical cable.

The two pull-cord connectors 12 are located on opposite inner sides of the two fiber optic connectors 113 in the direction of cable extension. Further, the optical fiber connector 113 and the pull-cord connector 12 at the same end are arranged at intervals in the extending direction of the optical fiber cable. This interval distribution's design both has been convenient for install the haulage rope connecting piece, also is convenient for connect fiber connector on the optic fibre that the optical cable tip extends, still makes the direct tractive optical cable of operating personnel accessible haulage rope and haulage rope connecting piece remove, also is difficult for haring fiber connector in the optical cable reciprocating motion adjustment process.

It should be noted that, if the distribution direction of the optical fiber connectors 113 and the corresponding pull-cord connectors 12 at the same end of the optical cable is defined as the front-back direction, the pull-cord connectors 12 are located behind the corresponding optical fiber connectors 113 at the same end of the optical cable with respect to one end of the optical cable, and the pull-cord connectors 12 are provided with backward-arranged stoppers for stopping and matching with the corresponding preset stoppers when the optical cable is laid, so as to limit the adjustment range of the optical cable when the optical cable is pulled to move backward, thereby avoiding the situation that the optical fiber connectors collide with the preset stoppers due to the transition movement of the optical cable, and effectively protecting the optical fiber connectors.

The predetermined stopping member may be selected according to a field construction environment, and may be a suspension member for suspending an optical cable, or a stopping cross bar or a stopping frame for stopping a pulling rope.

The embodiment of the pull-rope connector 12 is shown in fig. 2 to 4, and the pull-rope connector 12 includes a main sleeve body 121, a compression deformation body 122 and a nut 123. The compression deformation body 122 is inserted into the main sleeve 121, and when the nut 123 is screwed onto the main sleeve 121, the compression deformation body 122 can be compressed by the main sleeve 121 to deform.

The main sleeve body 121 extends axially along the extension direction of the optical cable to facilitate the sleeving of the main sleeve body 121 on the optical cable 11. As shown in fig. 2, a compression-deformed body 122 provided in the main housing 121 is used to thread the optical cable 11 and the pulling string 13. As shown in fig. 4, the extruded deformable body 122 is provided with a cable through hole 126 and a pulling rope through hole 125, the cable 11 is fixedly threaded in the cable through hole 126, and the pulling rope 13 is threaded in the pulling rope through hole 125 for connecting the pulling rope 13 with the pulling rope connector 12. The optical cable perforation 126 and the pull rope perforation 125 respectively extend along the axial direction of the main sleeve body, so that the optical cable perforation 126 and the pull rope perforation 125 are arranged in parallel, the stress of the extruded deformation body can be optimized, and the service life of the extruded deformation body can be prolonged.

In some embodiments, as shown in fig. 4, the crush-deformed body 122 is a cylinder that extends axially along the main housing. The cable perforations 126 and the pull cord perforations 125 in the squeezed deformable body 122 extend axially through the cylinder to facilitate threading of the cable 11 and the pull cord 13.

As shown in fig. 4, only one cable perforation is arranged on the compression-deformed body. If a plurality of optical cables are arranged on the compression-deformed body, a person skilled in the art can provide a plurality of optical cable perforations on the compression-deformed body.

In specific implementation, the extruded deformation body 122 may be a solid rubber body, and the cable through hole 126 and the pull rope through hole 125 are uniformly disposed on the solid rubber body, so as to optimize the stress of the solid rubber body. Adopt rubber materials processing to make into and receive the extrusion deformation body for receive the extrusion deformation body and take place to warp when receiving the extrusion easily, can increase the frictional force of the outside cable skin of solid rubber body and optical cable, and then can effectively improve the fastening connection of optical cable and solid rubber body. In other embodiments, the extruded and deformed body can be made of other materials such as latex, silica gel and gutta percha. In view of the effect of the compression deformation of the compression deformable body to secure the optical cable, those skilled in the art can consider other materials in practical application, and the invention is not limited to the material of the compression deformable body.

In some embodiments, the pull-cord connector 12 has a crush-fastening structure for compressing the crushed deformation to secure the cable. The squeezing and fastening structure specifically comprises a nut 123 and a locking elastic arm 124 arranged on the main sleeve body 121. As shown in fig. 4, one axial end of the main case body 121 is provided with a plurality of locking elastic arms 124 along the circumferential direction of the main case body, and each locking elastic arm 124 extends axially along the main case body. When the nut is used as a fastener, the nut is screwed onto the main body 121 to press inward to force the arms 124 to contract inward, so that the arms 124 force the deformed body 122 to deform.

As shown in fig. 4, in order to fix the deformed body 122 in the main sleeve 121, an inner stop ring table may be further disposed in the main sleeve 121, and when the deformed body 122 is inserted into the main sleeve 121 from one end of the main sleeve 121, one end of the deformed body 122 may be pressed against the inner stop ring table. One end of the nut 123 is provided with a closing structure, when the nut 123 is screwed on the main sleeve body 121, the closing structure arranged on the nut 123 is utilized to upwards press the extruded deformable body 122 on the main sleeve body axis, and then the extruded deformable body 122 can be fixed on the main sleeve body axis through the nut 123 and the inner stop ring platform. When screwing the nut, the closing structure and the inner stop ring platform push the extruded deformable body at the two axial ends, and the extruded deformable body can be forced to deform, so that the optical cable is conveniently fastened, the situation that the optical cable and the traction rope connecting piece slide relatively when the traction rope connecting piece is pulled through the traction rope 13 is avoided, and the optical cable can be driven to move synchronously and adjusted when the traction rope connecting piece is pulled.

The main housing 121 is provided with a flange 127 for an operator to carry. In operation, a person can operate the rotating main sleeve body 121 by using the convex edge 127. Moreover, when the nut 123 is screwed, the corresponding end of the nut 123 is pressed against the ledge 127 to achieve a screw-tight fit of the nut 123 and the main housing 121.

In specific implementation, the hauling cable connecting piece can adopt a cable joint, the cable joint is sleeved on the optical cable, and the hauling cable is threaded into the cable joint. The PG joint can be specifically selected as the cable joint, or other types of cable heads can be selected, and the fixing assembly of the traction rope connecting piece and the optical cable and the function of conveniently connecting the traction rope can be realized.

As shown in FIG. 1, a pull cord 13 is attached to each of the two pull cord connectors 12 of the preterminated cable assembly. The traction rope 13 is passed through the traction rope perforation 125 formed on the compression-deformed body 122. After threading is completed, the pulling rope 13 is knotted around the pulling rope connecting piece 12 to prevent the pulling rope from falling off from the pulling rope connecting piece.

In some embodiments, the hauling cable may specifically be a nylon cable. On the basis of reliably drawing the optical cable to move, the traction rope can also be a rope made of other materials such as a thread rope or a steel wire rope. The invention does not limit the concrete material of the hauling rope.

As shown in fig. 3, the respective end faces of the main housing 121 of the pull-cord coupling 12 serve as stops for the pull-cord coupling. In the case of applying the pull-cord connector 12 to the scene shown in fig. 6, the corresponding end surface of the main housing 121 is stop-fitted with the corresponding hanger as a predetermined stop member, so that the cable movement adjustment range can be limited.

During assembly of the preterminated cable assembly, the nut 123 is loosened, the compression molded body 122 is released, and the cable 11 is passed through the main housing 121, taking care to pass through the cable perforations 126 of the compression molded body 122 and connect the fiber optic connectors 113 at the cable branch point 112. The traction rope 13 is passed through the main sheath body 121 and through the traction rope penetration hole 125 of the crushed transformation body 122. The cable 11 and the pull cord 13 are also threaded through the nut 123. The extruded deformation body 122 is filled into the main sleeve body 121, the nut 123 is screwed on the main sleeve body 121, the extruded deformation body 122 is pressed to deform, the optical cable 11 can be effectively fastened, and when the optical cable 11 is drawn by the hauling rope connecting piece 12 through the hauling rope 13, the optical cable cannot slide relative to the hauling rope connecting piece.

For the pretermination optical cable assembly provided by the invention, the pretermination optical cable assembly is connected with the optical fiber connector 113 in advance in a factory, the optical fiber connector 113 can be directly butted with the adapter connector, and the construction efficiency is higher. Moreover, the optical cable 11 is correspondingly provided with the pulling rope connecting piece 12, so that when the optical cable is laid in the air, an operator can conveniently pull and move the optical cable by using the pulling rope 13 at a low position, and the adjustment is convenient.

As an application scenario, the pull rope connector 12 is a cable connector, and the pull rope connector 12 is pulled by the pull rope 13 to pull the optical cable 11. In other embodiments, the pull-cord connector may embody a clamp, with which the pull-cord and the cable are clamped together. When pulling the haulage rope, can pull the optical cable through the clamp and remove. When utilizing clamp fastening assembly haulage rope and optical cable, can be earlier with buffer protection layer parcel optical cable, buffer protection layer specifically can adopt the rubber layer, and the clamp is through cramping the rubber layer in order to cramp the optical cable, and then can be by the rubber layer to the optical cable protection, avoid damaging the optical cable. When using the clamp to connect the haulage rope, the clamp can with fiber connector interval distribution on the optical cable extending direction to damage fiber connector when avoiding dragging the clamp.

When the optical cable pulling device is used specifically, the pulling rope connecting piece can also be connected with the optical cable and the optical fiber connector simultaneously, and when the pulling rope connecting piece is pulled through the pulling rope, the optical cable can still be pulled to move. When the pull rope connecting piece is connected with the optical fiber connector, the optical fiber connector is not damaged as much as possible, the pull rope connecting piece and the optical fiber connector can be elastically connected through the corrugated pipe, and then the corrugated pipe can be used for shielding the protection optical cable.

In the application scenario shown in fig. 4, the plurality of locking elastic arms 124 on the main sleeve 121 are distributed along the circumferential direction of the main sleeve and all extend axially along the main sleeve, so that the nut 123 is conveniently utilized to press the locking elastic arms 124 to force the extruded deformable body to deform. In some embodiments, the locking elastic arm on the main sleeve body can extend along the circumferential direction of the main sleeve body, one end of the locking elastic arm in the circumferential direction of the main sleeve body is integrally attached to the main sleeve body, the other end is a free end, and a window hole is formed on the main sleeve body corresponding to the locking elastic arm for the locking elastic arm to swing in the radial direction of the main sleeve body. The inner side and the outer side of the locking elastic arm are respectively provided with a bulge, and when the nut is screwed on the main sleeve body, the locking elastic arm can be pressed to contract inwards so as to press the extruded deformation body to deform.

Unlike the above-mentioned manner in which the locking elastic arms corresponding to the compression-deformed body are each fixed by means of a nut, in some embodiments, a person skilled in the art may detachably fit a clip around the locking elastic arms of the main housing, the clip serving as a fastener for forcing the locking elastic arms to deform to press the compression-deformed body to deform.

As shown in fig. 4, the compression-deformed body 122 of the main housing 121 is provided with not only the cable through-hole 126 but also the pulling-cord through-hole 125, and the cable 11 and the pulling-cord 13 can be inserted into the compression-deformed body 122. In some embodiments, only the optical cable through hole can be arranged on the extruded deformation body, the traction rope hanging ring is arranged outside the main sleeve body, the traction rope penetrates through the traction rope hanging ring and is tied to be fixed, and then the traction rope can be connected to the main sleeve body. In still other embodiments, a tether may be used to secure the pull cord bundle to the pull cord connector, again adjustable by movement of the pull cord pulling cable.

In some embodiments, as shown in FIG. 1, a pull-cord 13 may be attached directly to the pull-cord connector 12 of a factory pre-finished preterminated cable assembly. In a specific application scene, the pulling rope can be omitted, and specific construction personnel can select and match the pulling rope during construction and connect the pulling rope to the pulling rope connecting piece.

In the preterminated cable assembly shown in fig. 1, a fiber optic connector 113 and a pull-cord connector 12 are provided at each end of the cable 11. In some embodiments, an optical fiber connector may be disposed at only one end of the optical cable, the optical fiber connector is used for plugging with the adapter connector, and the other end of the optical cable may be connected with the corresponding optical cable in a fusion splicing manner or a connection manner of installing a field wiring connector during specific construction. Accordingly, the pull cord connector may be provided only at the end of the optical cable where the optical fiber connector is provided. In addition, when the optical cable assembly is pre-terminated and is prefabricated in a factory, when the length of the optical cable is a set length, the pulling rope connecting piece can be fixedly installed at the other end of the optical cable without the optical fiber connector in advance, the pulling rope can be connected in the same way, and the optical cable can be conveniently pulled to move and adjust.

Based on the above-mentioned preterminated cable assembly, the present invention also provides an aerial laying method of laying a preterminated cable assembly, comprising the steps of:

s1: the cable 11 of the preterminated cable assembly is suspended by a start suspension member suspended at the cable launch point, the cable 11 being relatively movably threaded through the start suspension member.

S2: the optical cable 11 is suspended from a start point suspension member to a cable run termination point, and the optical cable 11 is suspended by a termination point suspension member 14 suspended from the cable run termination point, the optical cable 11 being relatively movably passed through the termination point suspension member 14.

S3: the cable 11 is pulled to move relative to the start and end point suspension members 14 by a pull cord 13 attached to a pull cord connector 12 provided at the respective ends of the cable 11 to adjust the position of the cable.

In the embodiment, the starting point suspension member and the ending point suspension member 14 have the same structure, and the ending point suspension member 14 is taken as an example to describe the structure of the two suspension members in detail.

As shown in fig. 5 to 7, the end point suspension 14 includes two side flaps and a support pulley 144 in the middle, and the support pulley 144 is rotatably supported and assembled to the two side flaps, wherein one side flap is a body flap 145 and the other side flap is a setting flap 142. The body panel 145 serves as a body of a hanger, and a hook 141 is fixedly provided on the body panel 145 to facilitate hanging of a corresponding hanger. The setting shutter 142 is movably fitted to the main body shutter 145 in the circumferential direction of the support rotation shaft. As shown in fig. 7, a first insertion hole is provided in the setting shutter 142, and a second insertion hole is provided in the main body shutter 145. When the setting shutter 142 is rotated to the setting closed position around the supporting pulley 144, the setting shutter 142 and the body shutter 145 can be fixedly assembled by inserting the latch 143 into the first insertion hole and the second insertion hole. The set baffle 142, the main body baffle 145 and the support pulley 144 enclose a channel for guiding the movement of the optical cable 11, the support pulley 144 provides rolling support for the optical cable 11, and the set baffle 142 and the main body baffle 145 form anti-drop protection. When it is desired to remove cable 11 from or place cable 11 into the channel, at least latch 143 is withdrawn from the second receptacle and set flap 142 is rotated to the set open position to form an opening in the corresponding hanger to facilitate access to the cable.

In order to effectively limit the optical cable 11, the supporting pulley 144 is a groove-shaped pulley, which facilitates to limit the optical cable 11 to move in the axial direction of the supporting pulley, thereby effectively protecting the optical cable 11.

The following specifically describes an implementation of the optical cable overhead laying method in combination with an optical fiber home-entry construction process:

during construction, the start point suspension member may be first suspended from the cable installation start point, and the end point suspension member 14 may be suspended from the cable installation end point. It should be explained here that, during the fiber-to-the-home construction, the optical cable laying starting point is located at the outdoor telegraph pole, and the optical cable laying end point is located at the fiber-to-the-home point, so that the fiber-to-the-home construction is conveniently performed by using the optical cable overhead laying method.

First, the set-up flap 142 on the starting point hanger is rotated to a set open position to form an opening in the starting point hanger, and the operator places the cable 11 on the starting point hanger and returns the set-up flap 142 to a set closed position to allow the preterminated cable assembly to be suspended at the cable launch point by the starting point hanger.

The cable 11 is then aerial towed from the starting point suspension to the cable laying termination. During aerial towing, the starting point suspension part suspends the optical cable 11 in the air at the optical cable laying starting point, the optical cable 11 can be suspended and towed by an unmanned aerial vehicle or suspended and towed by an operator, and the optical cable 11 continuously moves towards the optical cable laying end point around the supporting pulley 144 of the starting point suspension part.

When the respective end of the pre-terminated cable assembly reaches the cable-laying termination point, the set-up flap 142 on the termination suspension 14 is rotated to a set-open position to form an opening in the termination suspension 14, and the operator places the cable 11 onto the termination suspension 14 and returns the set-up flap 142 to a set-closed position to thereby suspend the pre-terminated cable assembly at the cable-laying termination point by the termination suspension 14.

And finally, pulling the optical cable 11 by using the pulling ropes 13 connected to the pulling rope connectors 12 at the two ends of the optical cable 11 to move and adjust, so that the optical fiber connectors 113 at the two ends of the optical cable 11 reach the specified positions to be in butt joint with the adaptive connectors, and the whole optical cable overhead laying can be completed.

Because the two ends of the optical cable are respectively provided with the hauling rope connecting pieces 12, the two ends of the optical cable can be pulled and adjusted by operators. In other words, when the optical fiber connector 113 of the optical fiber cable 11 corresponding to the cable laying starting point is too far from the adapter connector to be mated, the optical fiber cable 11 can be pulled back by the operator at the cable laying starting point through the corresponding pulling rope 13. If the optical fiber connector 113 at the cable laying end point corresponding to the optical fiber cable is too far away from the adapter connector to be butted, the operator can pull the optical fiber cable 11 to move and adjust the optical fiber cable at the cable laying end point through the corresponding pulling rope 13.

It should be noted that, when tractive cable moved the adjustment, can pass through the haulage rope by operating personnel and move the operation, also can be dragged the haulage rope by unmanned aerial vehicle and move the adjustment.

In order to avoid the unexpected situation that the optical cable 11 falls off from the corresponding suspension member when the optical cable is pulled back and forth, the two pull rope connectors 12 at the two ends of the optical cable 11 are correspondingly positioned at the two opposite sides of the starting point suspension member and the ending point suspension member 14, the external dimensions of the two pull rope connectors 12 are larger than the channel on the starting point suspension member and the ending point suspension member 14 for the optical cable 11 to pass through, and further, the corresponding stopping parts on the pull rope connectors 12 can be matched with the starting point suspension member and the ending point suspension member 14 in a stopping way, so that the optical cable 11 is prevented from falling off from the starting point suspension member and the ending point suspension member 14 when the optical cable is dragged and moved.

In some embodiments, support pulleys are provided on the end point suspension and the start point suspension, respectively. In other embodiments, if the cable is laid relatively close or if the friction between the hanger and the cable is relatively low and does not easily damage the cable, the support pulleys may be omitted on both the start and end hangers, or only one of the hangers may be provided with a support pulley.

As shown in fig. 7, as a specific use scenario, the starting point suspension member and the ending point suspension member are respectively provided with a channel for guiding the movement of the optical cable 11, the setting flap 142 of each suspension member is used for forming a part of a side wall of the channel, the setting flap 142 is rotatably mounted on the corresponding suspension member, an opening is formed when the corresponding suspension member is rotated to the set opening position around the axial direction of the corresponding supporting pulley 144, and the optical cable 11 can be effectively stopped from being pulled out when the corresponding suspension member is returned to the set closing position. In other embodiments, the setting flap may be telescopically mounted on the corresponding hanger in an axial direction of the supporting pulley, an opening may be formed in the corresponding hanger when the setting flap is extended outwardly with respect to the body flap, and the optical cable may be caught in the passage of the corresponding hanger when the setting flap is retracted inwardly toward the body flap, thereby preventing the optical cable from being released.

In another embodiment, the respective suspension element is equipped with a setting flap in a detachable manner. For example, fastening screws are selected to detachably fix the setting baffle and the main body baffle together. When the optical cable needs to be taken and placed, the setting baffle can be detached from the main body baffle. After the optical cable is placed into the corresponding hanging piece, the setting baffle is fixedly assembled with the main body baffle again.

During fiber-to-the-home construction, the starting point suspension member can be suspended at an outdoor construction telegraph pole, the end point suspension member can be suspended on an outdoor wall, and when the optical cable is processed and laid in place, the optical fiber connector of the optical cable corresponding to the laying end point of the optical cable is correspondingly connected to user equipment such as a fiber distribution box. Because can utilize the haulage rope to make a round trip the tractive optical cable and remove the adjustment, constructor just can adjust the operation in the low department, need not climb to the eminence operation, and then can adjust the optical cable to suitable position very conveniently for whole efficiency of construction is high, and construction cost is lower.

In other embodiments, the above-mentioned aerial cable laying method may be applied to other construction scenarios, such as a cable hole construction between two utility poles, where one utility pole serves as a cable laying starting point and the other utility pole serves as a cable laying end point, the starting point hangers and the end point hangers are hung on the two utility poles in a one-to-one correspondence, and then the laying construction is performed with reference to the above-mentioned aerial cable laying method.

According to the overhead optical cable laying method provided by the invention, the optical cable can be conveniently hung through the starting point hanging piece, the optical cable is conveniently dragged to the optical cable laying end point under the overhead condition, the optical cable is hung through the end point hanging piece, and then the optical cable is dragged to and fro at a low position by an operator to adjust through the traction rope, so that the optical cable cannot drag the ground in the whole overhead laying process, the adjustment is also convenient, the overhead optical cable laying difficulty is effectively reduced, and the overhead optical cable laying efficiency is improved.

In light of the foregoing description of the present specification, those skilled in the art will also understand that terms used to indicate orientation or positional relationship, such as "inner", "outer", "axial", and "circumferential", are based on the orientation or positional relationship shown in the drawings of the present specification, which are used for the purpose of convenience in explaining aspects of the present invention and simplifying the description, and do not explicitly or implicitly indicate that the device or element involved must have the particular orientation, be constructed and operated in the particular orientation, and thus should not be interpreted as limiting the aspects of the present invention.

In addition, in the description of the present specification, "a plurality" means at least two, for example, two, three or more, and the like, unless explicitly specifically defined otherwise.

While various embodiments of the present invention have been shown and described herein, it will be obvious to those skilled in the art that such embodiments are provided by way of example only. Numerous modifications, changes, and substitutions will occur to those skilled in the art without departing from the spirit and scope of the present invention. It should be understood that various alternatives to the embodiments of the invention described herein may be employed in practicing the invention. It is intended that the following claims define the scope of the invention and that the module compositions, equivalents, or alternatives falling within the scope of these claims be covered thereby.

Claims

1. A preterminated fiber optic cable assembly, comprising:

one end or two ends of the optical cable are connected with an optical fiber connector; and

and the pulling rope connecting piece is at least arranged on the optical cable and is provided with the end part of the optical fiber connector, and the pulling rope connecting piece is used for connecting a pulling rope so as to pull the optical cable to move and adjust.

2. The preterminated fiber optic cable assembly of claim 1, wherein the fiber optic connectors and the pull-cord connectors at a same end of the fiber optic cable are sequentially spaced apart in a cable-extending direction, the fiber optic connectors and the pull-cord connectors at a same end of the fiber optic cable being defined in a front-to-back direction, the pull-cord connectors being rearward of respective fiber optic connectors at a same end of the fiber optic cable, the pull-cord connectors being provided with rearwardly disposed stops for stopping engagement with respective predetermined stops when the fiber optic cable is being laid, to limit a range of adjustment of movement of the fiber optic cable when the fiber optic cable is pulled to move rearwardly.

3. The preterminated fiber optic cable assembly of claim 2, wherein the pull-cord connector has a crush deformation with a cable perforation, the cable being fixedly threaded in the cable perforation, the pull-cord connector further having a crush-fastening structure for compressing the crush deformation to secure the cable.

4. The preterminated optical cable assembly of claim 3, wherein the pulling rope connector has a main sleeve body sleeved on the optical cable, the extruded deformable body is located in the main sleeve body, the optical cable penetrating hole extends along an axial direction of the main sleeve body, the extruding fastening structure comprises a locking elastic arm arranged on the main sleeve body and a fastening member for forcing the locking elastic arm to press the extruded deformable body to deform, and the fastening member is detachably fastened and assembled on the main sleeve body.

5. The preterminated fiber optic cable assembly of claim 4, wherein a plurality of the locking elastic arms are disposed at an axial end of the main sleeve body along a circumferential direction of the main sleeve body, each of the locking elastic arms extends along the axial direction of the main sleeve body, and the fastening member is a nut threadedly fastened and assembled on the main sleeve body to force the locking elastic arms to be contracted inward.

6. The preterminated fiber optic cable assembly of claim 3, 4 or 5, wherein the crush body is further provided with a pull cord bore therethrough for threading the pull cord, the pull cord bore extending parallel to the fiber optic cable bore.

7. A method of aerial installation of optical fibre cables, comprising the steps of, in aerial installation of a preterminated optical fibre cable assembly according to any one of claims 1 to 6:

s1: suspending a fiber optic cable of the preterminated cable assembly by a start suspension member suspended at a cable launch point, the fiber optic cable being relatively movably threaded through the start suspension member;

s2: suspending the optical cable from a starting point suspension member to an optical cable laying terminal point by means of a terminal suspension member suspended from the optical cable laying terminal point, the optical cable being relatively movably passed through the terminal suspension member;

8. The aerial cabling method of claim 7, wherein the start point suspension member and/or the end point suspension member has a support pulley for rollingly supporting the cable.

9. An aerial cabling method according to claim 7 or claim 8, wherein the pull cord connectors are located one on each side of the cable opposite the start and end hangers, the pull cord connectors being adapted to engage the start and end hangers to limit the range of adjustment of movement of the cable to prevent the cable from falling off the start and end hangers during pull movement of the cable.

10. An aerial cabling method according to claim 9, wherein the starting point and end point hangers each have a channel for guiding movement of the cable, the starting point and end point hangers each having a removable or movable setting flap defining a portion of a side wall of the channel, the setting flap being removable from or movable to a set position to define an opening in the respective hanger to facilitate access to the cable.