660results about "Optical fibre/cable installation" patented technology

The utility model discloses a special maintenance tool for power transmission line optical cable strain insulator string fittings, which comprises two groups of connecting frames, an optical cable clamping fixture and a movable pull rod, the connecting frames are respectively a connecting frame I and a connecting frame II, a clamping groove is arranged in the middle of each connecting frame, the optical cable clamping fixture is clamped at the clamping groove, and the movable pull rod is connected with the optical cable clamping fixture. The optical cable clamping fixture comprises a cable clamping device and a clamping sleeve, the cable clamping device is installed in the clamping groove, and the clamping sleeve is installed outside the clamping groove; the two ends of the first connecting frame and the two ends of the second connecting frame are connected through movable pull rods. According to the utility model, a double-side connection structure, double-side tensioning and two sets of optical cable clamping fixtures are arranged, so that the power transmission line optical cable strain insulator string fitting is safer and more stable during maintenance and replacement; the conical resistance optical cable clamping fixture is arranged, installation is rapid, the clamping sleeve enables the cable clamping device to be more stable in the clamping groove, the clamping ring is arranged in the clamping groove of the cable clamping device, an optical cable is clamped more stably, and the surface of the optical cable cannot be damaged.

Fibre optic cables 101-120, for use in a data communications network are adapted to be laid, along at least part of their length within a pipe (or conduit) 1 carrying a fluid and comprise fibres adapted for sensing the condition within or in the vicinity of the pipe 1. The cables 101-120 are constructed with sensing fibres 12 provided in edge interstitial spaces 19 between data fibre bundles 11. In further embodiments, the cables may comprise electrical conductors 22, 23 or one or more power fibres 15. Optionally, the cable is additionally provided with outer sensing fibres 14 which replace one or more wires in the armour 32. The cables 101-120 are optionally adapted to remain stably positioned in the invert 2 of the pipe 1 by suitable selection of stiffness and relative density compared to the fluid and / or the provision of surface formations to reduce lift and / or drag forces experienced by the cable as a result of fluid flow.

The invention relates to the technical field of optical fiber communication equipment, and discloses an optical fiber splice closure with a positioning function and an application system. The junction box body is composed of a bottom box frame and a top box cover, the top box cover is installed at the top of the bottom box frame through bolts, pipe inlet holes are formed in the two sides of the junction box body, and the pipe inlet holes are used for leading external optical fiber pipes into the junction box body; the bottom box frame is provided with a welding disc, the welding disc is used for connecting optical fiber pipe joints, the top of the welding disc is provided with a low-frequency RFID positioning module, and through the arrangement of the low-frequency RFID positioning module on the optical fiber splice closure, when optical fiber pipe transmission goes wrong, through a positioning management system, the optical fiber splice closure can be accurately positioned. A worker can quickly obtain the position information of the fault junction box and formulate an optimal maintenance route, so that the maintenance efficiency is improved, the network interruption time caused by a fault is reduced, and the stable operation of a communication network is ensured.

The invention relates to a distributed optical fiber micro-seismic sensing device and a tunnel monitoring method, and belongs to the technical field of micro-seismic monitoring, the distributed optical fiber micro-seismic sensing device comprises a plurality of vibration measurement sensitization assemblies installed on the same tunnel section, and the plurality of vibration measurement sensitization assemblies are connected through distributed sensing optical cables; distributed sensing optical cables in the vibration measurement sensitization assembly are arranged in the radial direction of the tunnel and used for monitoring vibration signals of hidden and micro crack development of surrounding rock near the tunnel face in the radial direction. During monitoring, the vibration measurement sensibilization assembly at the head end or the tail end of the distributed optical fiber microseismic sensing device is sequentially connected with the distributed optical fiber demodulator, the monitoring host and the monitoring center to form a microseismic sensing monitoring network. The method for monitoring the tunnel by adopting the distributed optical fiber micro-seismic sensing device can realize the axial and radial sensing of the vibration signal, and overcomes the defect that the distributed sensing optical fiber is only sensitive to the axial vibration signal but not sensitive to the radial vibration signal.

Fibre optic cables (100), for use in a data communications network are adapted to be laid, along at least part of their length within a pipe (or conduit) (1) carrying a fluid and comprise fibres adapted for sensing the condition within or in the vicinity of the pipe (1). The cables (100) comprise one or more data fibre bundles (11) and armour (32) in the form of a layer of protective wires provided around the data fibre bundles (11). The cable (100) is additionally provided with outer sensing fibres (14) which replace one or more wires in the armour (32). The cables (100) are optionally adapted to remain stably positioned in the invert (2) of the pipe (1) by suitable selection of stiffness and relative density compared to the fluid and / or the provision of surface formations to reduce lift and / or drag forces experienced by the cable as a result of fluid flow.

An information management system configured to calculate a length of a duct in which a cable is to be installed. The system includes: an acquisition circuitry configured to acquire first position information after the duct is installed; and a calculator configured to calculate the length of the installed duct based on the first position information. A first code is attached to a first end in a longitudinal direction of the duct. The first position information indicates a position of the first end, and the first code stores the first position information.

A kind of pipeline optical cable connector and method for using, the pipeline optical cable connector includes hollow connecting flange, the lower outer periphery of the connecting flange is used to be welded with pipeline opening, the hollow interior of the connecting flange has sensing optical cable seat, sealing between the sensing optical cable seat and the connecting flange, the hollow interior of the sensing optical cable seat is sensing optical cable hole for sensing optical cable to pass, the upper part of the sensing optical cable seat has upper protruding part protruding from the top of the connecting flange, the lower part of the upper protruding part is fixed with the outer periphery of the upper part of the connecting flange by upper locking nut.The pipeline optical cable connector and method for using of the present application can quickly and conveniently realize the sealing between sensing optical cable in pipeline and pipeline, and the construction is simple;And can be repeatedly used, if sealing ring is aged, just replace sealing ring.If sensing optical cable needs to expand the number of optical fibers, or replace, repair sensing optical cable, it is very convenient.

A cable management device having a cap with cable channels and an aperture through which a plug is removably coupled to secure the cable management device into an accessory mounting slot. The cable channels can be open on a bottom of the device to accept one or more cables and capture them between the cable management device and a surface of the object with the accessory slots. The cable management device enables toolless installation, secured mounting in the absence of a cable, cable routing in multiple orientations and the ability to hold more than one cable at a time.

The utility model relates to a detachable optical fiber wire arranging device which comprises an outer cylinder, a wire arranging block used for arranging optical fiber wires is vertically inserted in the outer cylinder, the wire arranging block and the outer cylinder move synchronously, and the top and the bottom of the wire arranging block and the top and the bottom of the outer cylinder are located on the same horizontal plane respectively. A limiting sliding groove is formed in the inner side of the outer cylinder in a surrounding mode and communicates with the interior of the outer cylinder, a plurality of limiting sliding blocks in sliding fit with the limiting sliding groove are formed on the wire arranging block, the limiting sliding blocks are transversely located outside the wire arranging block, and the limiting sliding blocks are distributed in a surrounding mode along the wire arranging block. And the wire arranging block is limited in the outer cylinder through mutual cooperation of the limiting sliding block and the limiting sliding groove, and through mutual cooperation of the structures, the defects that most of common wire arranging devices in the market at present are integrated, and the integrated wire arranging device is characterized in that when the integrated wire arranging device is damaged, only the whole wire arranging device can be replaced, and the whole wire arranging device cannot be replaced are effectively overcome. The replacement cost is high, and the enterprise burden is increased.

The application relates to an incoming cable fixing assembly and a use method, and relates to the technical field of optical fiber communication. The incoming cable fixing assembly comprises a base provided with an opening for clamping an optical cable on one side, and further provided with a receiving groove in the base; and an optical cable fixing structure fixed in the receiving groove, wherein the optical cable fixing structure comprises two clamping ends arranged at intervals, the two clamping ends extend out of the receiving groove to form a clamping area in communication with the opening and used for clamping the optical cable. The application is simple to install and disassemble, has strong compatibility, and can be disassembled and replaced while ensuring stability.

The invention relates to the technical field of cable take-up and pay-off tables, and provides a cable take-up and pay-off table suitable for a large-scale cable drum, the cable take-up and pay-off table comprises a walking platform, the top of the walking platform is fixedly connected with a fixing frame, one end of the top of the fixing frame is fixedly connected with a first fixing plate, and the top end of the first fixing plate is rotationally connected with a first butt joint shaft penetrating through the first fixing plate; a first butt joint shaft is arranged at one end of the top of the fixing frame, a winding drum used for winding a cable is arranged on the first butt joint shaft in a sliding fit mode, a positioning piece used for positioning the winding drum is arranged at the other end of the top of the fixing frame, a driving piece used for driving the first butt joint shaft to rotate is arranged on the fixing frame, and a reverse locking piece used for limiting the winding drum to release the cable is arranged on the outer side of the first fixing plate. Automatic loading and accurate positioning of the winding drum are achieved through the hydraulically-driven positioning piece.

A downhole system may include a plurality of conduits configured to interconnect, via at least one stab-in connection, to form at least one fiber channel extending along a portion of a wellbore. The downhole system may also include at least one fiber optic line configured to extend through at least a portion of the fiber channel from a surface position to a downhole position. Further, the downhole system may include a plug secured to leading end of the fiber optic line. The plug is configured to move along the at least one fiber channel in response to fluid pressure in the at least one fiber channel to drive the leading end of the at least one fiber optic line along the at least one fiber channel from the surface position to at least the downhole position.

An optical fiber cable includes a cable jacket, a strength member embedded in the jacket, a thin-film subunit (TSU), and a first water-blocking element. The first water-blocking element is disposed in a first interior region defined by the cable jacket between an interior surface of the cable jacket and the TSU, such that the TSU does not tack to the cable jacket during extrusion of the cable jacket. The cable can further include one or more strength elements disposed in the first interior region. The TSU has an optical fiber ribbon disposed therein. The TSU can further include a ripcord and / or second water-blocking elements disposed therein.

An optical fiber cable includes a cable main body including 3000 or more optical fibers, a sheath material receiving therein the optical fibers, and a multi-fiber connector connected to ends of the optical fibers, in which the sheath material includes 0.2% or more by mass and 1.5% or less by mass of silicone.

The invention relates to the technical field of wire threading and branching, and discloses a deconcentrator threading device which comprises a wire feeding mechanism, a wire moving mechanism, a wire inserting mechanism and a rotary positioning mechanism. The wire feeding mechanism comprises a wire cutting assembly and a wire clamping assembly, and the wire clamping assembly is located on the downstream of the wire cutting assembly. The wire moving mechanism slides in the first horizontal direction and is located on the downstream of the wire feeding mechanism, the wire moving mechanism comprises a first clamping assembly, and the first clamping assembly is provided with a first position parallel to the wire clamping assembly; the wire inserting mechanism comprises a sliding seat, a sliding plate and a wire inserting assembly, the sliding seat is located on the downstream of the wire moving mechanism, the sliding plate is slidably connected to the sliding seat in the second horizontal direction, and the wire inserting assembly is slidably connected to the sliding plate in the first horizontal direction; the rotary positioning mechanism is located downstream of the wire plugging mechanism. According to the equipment for threading the deconcentrator, wire rod position deviation caused by factors such as vibration and friction is avoided, the rate of defective products is reduced, and threading accuracy and product quality are guaranteed.

A cable management trough member designed for organized cable routing and separation within various environments. The trough member including a base with a planar top surface, bounded by a first end, a second end, and opposing sides, forming a perimeter. Extending upward from the base are a first and a second sidewall, together with the base forming a trough-like shape. An intermediary divider, situated between the sidewalls, rises from the base to a defined top edge, contributing to the structural integrity and functionality of the trough. The divider can be characterized by a materially weakened area near its base, which enhances flexibility and adaptability in cable management applications. The trough member is constructed as a single, unitary piece through an extrusion process, ensuring robustness and uniformity. The design includes distinct planar surfaces of the divider that are substantially orthogonal to the base, facilitating efficient cable organization and ease of access.

The utility model belongs to the technical field of optical fiber connectors, in particular to an air-blowing traction integrated connector, which comprises a pin assembly, a pre-embedded optical fiber is arranged in the pin assembly, the pin assembly comprises a pin, a pin tail handle joint and a pin tail handle sleeve which are connected in sequence, the pin tail handle sleeve is connected with a rear sleeve in a riveting manner, and the pin tail handle joint is connected with the rear sleeve in a riveting manner. A spring is arranged between the pin tail handle sleeve and the rear sleeve, a connector shell connecting piece and a traction cap connecting piece are arranged on the rear sleeve, and the rear sleeve is detachably connected with a connector shell through the connector shell connecting piece. When the part with the connector integrally penetrates through the pipe, the minimum pipe penetrating section is 4mm; and in the air-blowing type penetrating process, when the contact pin assembly collides with the pipeline, the contact pin tail handle sleeve of the contact pin assembly can extend into the through hole of the rear sleeve to compress the spring between the contact pin assembly and the rear sleeve for buffering, so that the contact pin assembly is prevented from being damaged by collision.

The utility model discloses an anti-seismic optical fiber groove for optical fiber cable installation, which comprises a U-shaped groove channel, two sides of the U-shaped groove channel are respectively and fixedly provided with two screw installation sheets, and two sides of a top opening of the U-shaped groove channel are respectively and fixedly provided with three semicircular strips; the n-shaped top cover is installed on the outer side of a top opening of the U-shaped channel, three semicircular grooves are formed in the inner walls of the two sides of the n-shaped top cover, and the three semicircular grooves are matched with the corresponding semicircular strips; the two plugging structures are matched with the two ends of the U-shaped channel; and the multiple damping structures are all installed on the inner wall of the bottom of the U-shaped channel, the same damping plate is fixedly installed at the tops of the multiple damping structures, and a plurality of clamping strips are fixedly installed at the top of the damping plate. The titanium alloy belleville springs and the silicon rubber damping columns form a composite damping system, the anti-seismic effect is improved, the rubber semicircular strips are matched with the semicircular grooves in a clamped mode, three-point type elastic sealing is achieved, and the mounting and sealing effects are improved.

The application relates to the technical field of optical fibers, in particular to an optical fiber packaging system; the system comprises a paying-off unit, a sleeve forming unit, a winding unit and a force applying unit, the paying-off unit can pay off the optical fiber, the sleeve forming unit is located on one side of the paying-off unit, the sleeve forming unit can form a sleeve in the circumferential direction of the optical fiber paid off by the paying-off unit; the winding unit is located on one side of the sleeve forming unit, the winding unit winds the sleeve formed by the sleeve forming unit, realizes the packaging of the optical fiber, the force applying unit is arranged between the paying-off unit and the sleeve forming unit, the force applying unit can apply a force in the direction of the sleeve forming unit to the optical fiber between the paying-off unit and the sleeve forming unit, thereby effectively reducing the tension acting on the optical fiber during the winding of the sleeve, thereby making the optical fiber form redundancy and form a bending state in the interior of the sleeve, effectively avoiding the stretching of the optical fiber after the sleeve is unfolded, and effectively protecting the optical fiber.

The present disclosure provides an optical fiber cable (100, 200, 300) comprising one or more tubes (104) enclosing at least one optical fiber (102), a sheath (106) surrounding the one or more tubes (104) and one or more strength members (108) embedded in the sheath (106). In particular, the one more strength members (108) are in a pre-elongated configuration and are elongated by 0.02% - 0.1% in the pre-elongated configuration. Additionally, the one or more strength members (108) are embedded at a tension of 1.5-8 kgf and have an elongation at break less than or equal to 2%. Further, the optical fiber cable (100, 200, 300) has a tensile break load of less than 2100N.

Methods and systems for removing coatings from optical fibers. A system includes a gas source for providing gas, and a heater configured to heat the gas. The system includes a holder comprising first and second attachment features. The attachment features secure a coated optical fiber along a removal path. The system includes at least one nozzle connected to the gas source. The at least on nozzle is aimed in a nozzle direction that is towards the removal path at a pitch, such that the nozzle is non-perpendicular towards the removal path. The nozzle directs a continuous stream of the heated gas towards the coated optical fiber causing the coating of the coated optical fiber to be removed. The methods and systems may employ a second nozzle that may be offset from the first nozzle angularly and / or laterally with respect to the removal path.

This application discloses an optical and electrical composite cable designed for simultaneous installation within pipelines, along with its processing and installation methods. By providing a composite cable with a thin wall and compact overall size, it allows the commercially available thin pipelines ranging from 6 mm to 13 mm in diameter to accommodate both optical and electrical cables in a single pass. This design reduces the amount of pipeline material needed and shortens installation time, while broadening the potential applications for these types of pipelines and improving their utilization. Since the optical and electrical composite cable is installed within a pipeline, it does not require self-supporting overhead structure, which simplifies its design. The thinner optical cable is connected to the thicker electrical cable, allowing the electrical cable to provide necessary tensile strength to the optical cable. This simplified approach to tensile strength ensures that the composite cable meets required strength standards despite its smaller size.

A fiber optic cable assembly is provided. The fiber optic cable assembly includes a fiber optic cable with an outer jacket that surrounds a plurality of subunits each containing at least one optical fiber. The outer jacket includes an end through which the plurality of subunits extends. The fiber optic cable assembly includes a furcation assembly proximate the end of the outer jacket through which the plurality of subunits extends. The furcation assembly includes a furcation plug that extends longitudinally a length between a first end and an opposite second end, The furcation plug includes a plurality of grooves that extend helically about a periphery of the furcation plug between the first end and the second end. Each of the plurality of grooves receives a respective one of the plurality of subunits such that each of the plurality of subunits is wrapped around the furcation plug at least one time.

The utility model belongs to the technical field of optical cable fastening equipment, and particularly discloses an optical cable fixing device. The optical cable fixing device comprises a limiting assembly, the limiting assembly comprises a base and a gland, and the base is provided with a containing groove penetrating in the first direction; the gland is provided with a limiting protrusion matched with the containing groove, and the gland can be arranged on the base in a covering mode. When the gland covers the base, the limiting protrusion is located in the containing groove, and a wire passing hole for limiting an optical cable is formed between the limiting protrusion and the inner wall of the containing groove. The optical cable fixing device is convenient for fixing the optical cable, improves the fixing regularity of the optical cable, and reduces the damage to the optical cable.

The present application relates to the technical field of optical cable joint box fault identification, and a kind of optical cable joint box fault identification method and system based on remote positioning, comprising: constructing fault parameter detection system, obtaining optical cable joint box set and spare optical cable joint box set, extracting an optical cable joint box from optical cable joint box set in turn, and the following operations are executed to the extracted optical cable joint box: obtain fault monitoring time period set, obtain area difference set and gas data set, obtain optimal optical cable joint box set, obtain the geographic coordinates of the optical cable joint box corresponding to the gas data, extract spare optical cable joint box from spare optical cable joint box set, replace the optical cable joint box, obtain replacement optical cable joint box, complete optical cable joint box fault identification based on remote positioning based on optimal optical cable joint box set group and replacement optical cable joint box set.The present application can improve the efficiency and accuracy of optical cable joint box fault detection, and guarantee the stable operation of optical cable network.

An air-blown fiber optic connector comprising an air-blown section and a non-air-blown section that are detachable from each other, wherein the air-blown section comprises an inner core assembly and an air-blown microcable pre-assembled to the inner core assembly, and the non-air-blown section comprises a housing with a through-hole, characterized in that the inner core assembly comprises an insert, an insert tail handle, a spring, a support element and a crimp sleeve; one end of the insert is an insert body with a conductive end face, while its other end is a tail-handle connector end, with one end of the insert tail-handle being connected to the tail-handle connector end and its other end being connected to the crimp sleeve to secure one end of the air-blown micro cable; and a middle section of the insert tail handle comprises a sleeve section and a support section which are arranged coaxially, wherein the outer diameter of the sleeve section is larger than that of the support section and an annular step surface is formed at the junction of the sleeve section and the support section, while the support element is arranged slipped over the outer circumference of the support section and is held axially by the annular step surface, wherein one end of the spring is arranged slipped over the outer circumference of the sleeve section and held axially and its other end rests against the end of the support element; wherein the through-hole serves for the removable insertion of the inner core assembly, wherein a fastening element is arranged in the through-hole, whereby the support element can be axially locked by the fastening element after the inner core assembly has been fully inserted.