8920results about "Fibre mechanical structures" patented technology

The invention relates to an anti-ant large-core-number fiber ribbon cable comprising a cable core and an outer sheath. The cable core includes loose tubes; and fiber ribbons are sleeved inside the loose tubes. The outer sheath is an outer nylon sheath; and a non-metallic reinforcement layer is arranged between the outer sheath and the cable core. According to the anti-ant large-core-number fiber ribbon cable provided by the invention, with the outer nylon sheath, ants can not bite the sheath, so that the damages on the optical cable by ant biting in a pipe at an area with a serious anti problem are prevented, the normal state of the cable is ensured, and the application region of the cable is extended. The cable based on a simple and reasonable structure has advantages of small cable diameter, high fiber density, large fiber capacity, and low duty ratio and can be laid in a pipe conveniently; and the bending performance is good. During branched connection, 4 to 24 fibers can be melted once, so that the construction time is saved and the manpower cost is lowered, and the construction efficiency is improved. On the basis of the full drying type dielectric structure, branched connection is realized conveniently and usage becomes convenient.

An optical fiber may include a cladding structure extending along a fiber length providing a hollow interior fiber region, and anti-resonant (AR) elements formed as walled structures with walls extending along the fiber length. At least one of the AR elements surrounds an interior region and further includes one or more support structures in the interior region and formed as at least a portion of at least one of the walls, where the one or more support structures have a non-uniform thickness profile, and where the plurality AR elements is configured to guide light along the fiber length in a central portion of the hollow interior fiber region based on optical anti-resonance.

The invention belongs to the technical field of optical cables, and discloses an optical fiber ribbon optical cable with special-shaped butterfly-shaped leading-in units, which is provided with a plurality of first optical fiber ribbons, a plurality of special-shaped butterfly-shaped leading-in units, four reinforcing components, a frame component and an outer sheath, the special-shaped butterfly-shaped leading-in units are embedded on frame strips of the frame component, and the special-shaped butterfly-shaped leading-in units and the frame component form a cable core. The cross section of the cable core is rectangular; the reinforcing part is located in the extension cavity, all the first optical fiber ribbons are distributed in the center cavity in a stacked mode, and the cable core is coated with the outer sheath. The optical fiber connector has the main beneficial technical effects that the density of the fiber core is higher, the manufacturing is easier, the number of butterfly-shaped introduction units is larger, the disassembly and assembly are more convenient, the space utilization rate is higher, the optical fiber connector can be suitable for various optical fiber connectors in the prior art, and the compression resistance and the buffering capability are stronger.

The invention belongs to the technical field of optical cable sealing, and particularly discloses an optical cable end sealing structure and a hollow-core optical fiber cable, and the optical cable end sealing structure comprises a sealing seat which is used for sleeving and being connected to the circumferential surface of the optical cable; the sealing ring is used for sleeving and sealing the circumferential surface of the optical cable; the sealing cover is provided with a stepped blind hole, one end, provided with the stepped blind hole, of the sealing cover is used for being in threaded connection with the sealing seat along the axial direction so as to enable the sealing ring to spirally abut against the sealing seat, and the sealing cover, the sealing ring and the optical cable are used for defining a sealing cavity for sealing the end of the optical cable. The stepped blind hole of the sealing cover is used for containing the end face structure of the optical cable in a non-contact mode. The optical cable end sealing structure can stably protect the end part of the optical cable for a long time, and the optical cable end sealing structure is not easy to be punctured and poked off by a reinforcing member which may protrude in the optical cable.

The invention discloses a high-strength directly-buried optical cable and a preparation method thereof. Comprising at least one reinforcing piece, at least one cable core, a water-blocking tape layer, an inner protective layer, an armor layer and a high-strength outer sheath, wherein the cable core surrounds the reinforcing piece, is twisted and is filled with water-blocking cable paste; the water-blocking tape layer wraps the cable core; the inner protective layer wraps the water-blocking tape layer; wherein the cable core is composed of a loose tube filled with water-blocking fiber paste and at least one light-guide fiber accommodated in the loose tube; wherein the high-strength outer sheath is prepared from the following raw materials in parts by weight: 80 to 85 parts of high-density polyethylene, 15 to 20 parts of nylon 612, 8 to 12 parts of compatilizer, 15 to 20 parts of modified silicon dioxide, 1 to 3 parts of antioxidant and 0.7 to 1.1 parts of lubricant. The high-strength directly-buried optical cable has excellent high strength, aging resistance and wear resistance, the service life of the optical cable is remarkably prolonged, and the transmission reliability of the optical cable is remarkably improved.

A hybrid cable includes at least two bonded pairs of electrical conductors, such as four bonded pairs. The bonded pairs may be stranded about a central member and may also be bonded to each other. In one embodiment, the central member is a GRP rod, and one or two buffer tubes, each containing optical fibers, are stranded along with the bonded pairs about the GRP rod. In another embodiment, the central member is a tube and plural optical fibers are contained within the tube. Each bonded pair of electrical conductors carry digital or class 4 power from a transmitter card to a respective receiver card. Each bonded pair has unique indicia to facilitate the correct connections between the transmitter and receiver cards, such as tactile physical features on an outer surface of one of the electrical conductors of each bonded pair.

The invention discloses an optical cable capable of being remotely inspected and a preparation method and application thereof, and belongs to the technical field of optical cable preparation, the optical cable comprises an optical unit, an electric unit and an outer sheath, the optical unit is arranged in a containing space of the outer sheath, the electric unit is connected with the outer sheath, the arrangement direction of the electric unit is parallel to the axis of the outer sheath, and the optical cable is arranged in the containing space. And the positive excess length of the electrical unit relative to the outer sheath is 0.05%-0.8%. According to the optical cable capable of being remotely inspected, when the optical cable is coated with ice, the electric unit and the outer sheath are synchronously stretched, the electric unit cannot be stretched and thinned due to the existence of the positive excess length, after the stretched length of the outer sheath makes up the excess length of the electric unit, the electric unit is stretched along with the outer sheath, and the increase of wave impedance of the electric unit can be detected through a TDR detection technology; an optical cable maintainer can maintain the optical cable in advance when the wave impedance of the electric unit is increased, the ice on the surface of the optical cable is removed, and the problem of cable breakage caused by continuous accumulation of ice and snow is avoided.

The invention relates to the technical field of wiring path optimization, and discloses an automatic wiring path optimization method and device for an optical fiber wiring cabinet. The method comprises the following steps: carrying out grid division on an optical fiber distribution cabinet, establishing an optical fiber physical stress finite element model, and carrying out stress analysis calculation to obtain optical fiber node stress distribution data; carrying out correlation analysis on the node stress value and the path length to obtain optical fiber stress and wiring path correlation data; inputting the optical fiber stress and wiring path associated data into an encoder-decoder structure for depth feature extraction to obtain a target feature parameter set; performing wiring path prediction on the target characteristic parameter set to obtain wiring path prediction data; according to the method, the Kriging agent model is constructed based on the wiring path prediction data, stress distribution optimization solution is carried out through a double-forgetting factor genetic algorithm, an optimal wiring path scheme is obtained, the problem of stress damage caused by traditional experience wiring is effectively avoided, and multi-target optimization of the wiring path is achieved.

A cable enclosure may include a body portion including an exterior surface portion having an attachment portion that may be structurally configured to couple with a mounting portion of a telecommunications component. A first portion of the attachment portion may be structurally configured to slidingly receive the mounting portion of the telecommunications component and bias the mounting portion, and a second portion of the attachment portion may be structurally configured to remove the bias from the mounting portion of the telecommunications component such that the mounting portion of the telecommunications component is permitted to prevent sliding movement of the telecommunications component relative to the body portion so as to retain the telecommunications component on the exterior surface portion of the body portion.

The invention relates to a hollow-core optical fiber and an optical cable. The hollow-core optical fiber comprises a cladding region and a fiber core region, the cladding region comprises an outer cladding and an anti-resonance layer which are sequentially arranged from outside to inside; the fiber core region comprises a region surrounded by the boundaries of the anti-resonance layer and the outer cladding layer; wherein the anti-resonance layer comprises a plurality of nesting units which are rotationally and symmetrically distributed, each nesting unit comprises a first nesting ring and a second nesting ring nested in the first nesting ring, the first nesting ring is connected to the inner wall of the outer cladding at a first arc length, and the second nesting ring is connected to the inner wall of the outer cladding at a second arc length. And the second nesting ring is connected to the inner wall of the first nesting ring at a second arc length at a position where the first nesting ring is connected to the inner wall of the outer cladding. According to the invention, the problem that the nested ring structure of the hollow-core optical fiber is poor in stability and is easily affected by external stress to deform in the prior art can be solved.

The invention belongs to the technical field of optical communication, and particularly relates to a high-integration-level direct insertion type circular active connector optical cable assembly which comprises a modified connector, a shell connected with the assembling end of the modified connector, a printed board assembly fixedly arranged in the shell and an optical cable assembly. The printed board assembly comprises a rigid printed board I which is in welding fit with a pin contact element in the modified connector, and two end parts of the rigid printed board I are connected with flexible printed boards. According to the high-integration-level in-line circular active connector optical cable assembly in the technical scheme, the photoelectric / electro-optical conversion chips mounted on the rigid printed board II are all vertical emitting light and vertical receiving light, and the photoelectric / electro-optical conversion chips are coupled by adopting the lenses, so that on one hand, the lenses play a role in protecting the photoelectric / electro-optical conversion chips and the gold wires, and on the other hand, the optical cable assembly is not damaged; on the other hand, the optical path can be rotated by 90 degrees to be parallel to the second rigid printed board, it is guaranteed that the optical cable center line and the active electric connector optical cable assembly are located on the same center line, and coaxial fiber output is achieved.

The invention discloses a windable optical cable belt and a manufacturing method thereof, and the manufacturing method comprises the steps: distributing a plurality of parallel optical fibers in the same plane, so as to form an optical cable belt; a dispensing valve is adopted to carry out dispensing and bonding on the two adjacent optical fibers, intermittent dispensing is carried out in the first direction at a first preset interval so as to form bonding parts, and the two adjacent bonding parts of the optical cable belt in the second direction are distributed at a second preset interval in the first direction; and curing the bonding part of the optical cable tape, so that the upper surface of the cured bonding part is sunken downwards, and the lower surface of the cured bonding part is sunken upwards. According to the optical fiber manufacturing method, the adjacent optical fibers are bonded in a manner of carrying out interval dispensing at the first preset interval in the first direction, and the adjacent bonding parts in the second direction have the second preset interval in the first direction, so that compared with an existing optical fiber dipping method, the method has the advantages that the crimpability of an optical cable belt can be effectively improved; and the glue consumption can be reduced.

The invention belongs to the field of optical cables, and discloses a multi-unit lead-in optical cable with a compact structure, which is provided with at least one assembly body and a protective sleeve, each assembly body is formed by sequentially attaching a plurality of introduction units end to end and forms a structure with a cross section similar to a regular hexagon; the protective sleeve wraps the outmost assembly body, the inner wall of the protective sleeve is matched with the outer edge of the outmost assembly body in shape, and the cross section of the outer edge of the protective sleeve is circular or regular hexagonal; the number of the introduction units in each assembly body is 3n, the layer number of the assembly body at the outermost layer is n, the layer number of the assembly body at the innermost layer is 1, and the like, and n is a positive integer not less than 1. The invention has the following main technical effects: the structure is more compact, the assembly is more convenient and quicker, the space utilization rate is higher, the density of the introduction units is higher, and the device is more suitable for occasions such as a data center and the like which need to access a large number of introduction units.

A bladed chassis system facilitates installation of the bladed chassis system and replacement of the blades at the chassis. For example, a front panel of the blade can be opened either upwardly or downwardly at the discretion of the user. Blades can be inserted and removed from the front and / or the rear of the bladed chassis system at the discretion of the user. Cables can be routed to the rear of the chassis system from either of two sides at the discretion of the user. The blades carried by the chassis have fiber management trays that can be rotationally oriented in any desired rotational position at the discretion of the user.

The invention discloses a wrapping machine for photoelectric hybrid cable production, and relates to the technical field of wrapping devices.The wrapping machine is characterized in that a wire inlet frame is arranged on one side of a base, a wire inlet hole for wire inlet is formed in the wire inlet frame, a wire guiding frame is installed in the middle of the base, a wire guiding pipe is arranged on the wire guiding frame, and a wire winding frame is arranged at the other end, away from the wire guiding frame, of the base; the wire inlet frame is provided with a wrapping disc, a worm is connected to a center shaft of the wrapping disc, a wire leading pipe is arranged at the center shaft of the wrapping disc, a plurality of fixing plates are arranged on the wrapping disc in an annular array mode, worm wheels are rotationally connected into the fixing plates, a connecting plate is arranged on one side of each worm wheel, a wrapping cylinder is connected to the end, away from the corresponding worm wheel, of each connecting plate, and the wrapping cylinders are rotationally connected with the connecting plates; the device solves the problems that in the prior art, threaded holes are inconvenient to fix, the wrapping angle is inconvenient to adjust, a wrapping tape cannot be wound according to a fixed angle, different threaded holes need to be formed for angle adjustment, the time cost is large, and the overall photoelectric hybrid cable wrapping efficiency is affected.

This power cable monitoring system includes: a power cable including a power transmission cable provided at an inner circumferential part, an armoring wire provided at an outer circumferential part, and sensor ropes having an optical fiber to detect a physical quantity of a measurement target; and a backscattering light measurement device which measures distribution of the physical quantity of the measurement target, using backscattering light from the optical fiber, wherein distribution of temperature and strain of the power cable is obtained from a frequency shift signal of Rayleigh backscattering light obtained by the backscattering light measurement device on the basis of a signal detected by the sensor ropes, and a polarization distribution signal obtained from the Rayleigh backscattering light.

The invention relates to a polyethylene and silica gel mixed material, a preparation method thereof and application of the polyethylene and silica gel mixed material in a composite optical cable silicon core tube. The composite material comprises the following components in parts by weight: high-density polyethylene, an ethylene-siloxane copolymer elastomer, a maleic anhydride grafted polyolefin elastomer, hydroxylated nano silicon dioxide, liquid paraffin, a crystallization nucleating agent, an ultraviolet light absorber, an auxiliary stabilizer, a processing aid and color master batch. The liquid paraffin is formed by blending dual-molecular-weight paraffin with different carbon chain lengths, and part of the liquid paraffin is grafted and modified by polybutylene so as to enhance the anchoring capacity of the lubricating phase; in addition, nano cellulose crystals grafted by a PEG-PCL (Polyethylene Glycol-Polycaprolactone) block copolymer are introduced, so that the dimensional stability and the interface structure integrity of the material are synergistically enhanced. The composite material has excellent low friction, thermal oxidation stability, creep resistance and ultraviolet aging resistance, and is suitable for preparation of a high-performance composite optical cable silicon core tube.

A telecommunications tray (50 / 300 / 400 / 600 / 900 / 1100 / 1200 / 1400 / 1800) is configured for mounting to a telecommunications fixture. The tray (50) includes a removably mounted telecommunications module (100 / 200 / 302 / 402 / 700 / 800 / 1000 / 1100 / 1300 / 1900 / 2000) that defines a body that is enclosed by a cover (1102 / 1320 / 1924) to define an interior. The module (100 / 200 / 302 / 402 / 700 / 800 / 1000 / 1100 / 1300 / 1900 / 2000) includes radius limiters (902 / 1356 / 1358 / 1954) within the interior for managing cables and defines connection locations for inputting and / or outputting signals via cables for processing within the module (100 / 200 / 302 / 402 / 700 / 800 / 1000 / 1100 / 1300 / 1900 / 2000), the telecommunications module (100 / 200 / 302 / 402 / 700 / 800 / 1000 / 1100 / 1300 / 1900 / 2000) movably mounted to the tray (50 / 300 / 400 / 600 / 900 / 1100 / 1200 / 1400 / 1800).

A safe optical cable cross-connecting box provided by the present invention comprises a base, the upper part of the base is rotatably connected with a heat dissipation cylinder, the heat dissipation cylinder is fixedly sleeved with an installation column, and the circumferential side wall of the installation column is provided with a plurality of welding disc grooves from top to bottom and is also provided with a plurality of optical splitter grooves. The inner side of the welding disc groove and the inner side of the optical splitter groove are both communicated with the heat dissipation barrel through heat extraction openings, the periphery of the installation column is covered with a liftable protection barrel cover, a heat dissipation opening communicated with the heat dissipation barrel is formed in the top of the protection barrel cover, a heat dissipation fan is installed in the heat dissipation opening, and an air suction cavity communicated with the heat dissipation barrel is formed in the base. An annular groove is formed in the circumferential cavity wall of the air suction cavity. According to the cross-connecting box, the cylindrical arrangement is adopted, the welding disc grooves and the optical splitter grooves are reasonably distributed in the circumferential direction, the occupied area can be reduced, centralized heat dissipation can be achieved, the heat dissipation effect is improved, water vapor and dust sucked into air can be adsorbed, and safety is improved.

A splice equipment assembly includes two routing paths along opposite sides of a splice region. The two routing paths do not cross. The two routing paths do not extend circumferentially around the splice region. The two routing paths provide adequate slack to allow a splice tray to be removed from the splice region and moved to a workstation outside of the splice equipment assembly. Multiple splice equipment assemblies can be mounted to the same rack (e.g., at a front and rear of the rack).

The invention discloses a temperature and humidity monitoring and dehumidification integrated device for an optical cable connector box of an electric power tower, and relates to the technical field of electric power engineering, the temperature and humidity monitoring and dehumidification integrated device comprises an optical cable connector box body, and a controller is arranged on the outer surface of the optical cable connector box body close to the edge of one side. According to the temperature and humidity monitoring and dehumidification integrated device for the optical cable connector box of the electric power tower, when saturated silica gel enters the communicating pipe, moisture in the silica gel is evaporated out by heating the silica gel, and is discharged through the air outlet pipe until the moisture in the silica gel is completely discharged; when silica gel needs to be added into the optical cable connector box body again for dehumidification, the electric push rod is started, the piston moves to the position, with the inner diameter larger than the outer diameter of the piston, in the drainage tank, and then the silica gel moves to the interior of the limiting sleeve. Therefore, the interior of the optical cable connector box body can be dehumidified again.

The invention discloses an optical cable, which comprises an optical cable body, an optical cable fixing piece and a separator, one end of the optical cable body is coated with the optical cable fixing piece, and the middle of the optical cable body is coated with the separator. The optical cable body comprises a cable sheath, and optical fibers and reinforcing wires are arranged in the cable sheath. The optical cable fixing piece comprises a hoop, a first crimping ring and a second crimping ring, and the first crimping ring covers the hoop; and one end of the second crimping ring is crimped on the first crimping ring, the middle part is crimped on the reinforcing line on the surface of the hoop, and the other end is crimped on the cable skin. The hoop is provided with a first cavity, and an optical fiber and a seventh sealing piece are arranged in the first cavity. A reinforcing line is arranged between the first crimping ring and the hoop, and the reinforcing line does not exceed the first crimping ring. In the application, the first cavity of the hoop is filled with the seventh sealing member and the first crimping ring to crimp the reinforcing wire, the reinforcing wire does not exceed the first crimping ring, and the first crimping ring is matched with the seventh sealing member, so that the cooling liquid is prevented from permeating into the optical fiber in the optical cable.

A telecommunications equipment frame including a base, and two vertical uprights, and a top member; the upright members defining an upper equipment zone and a lower cable tray zone. One or more front trays are in the lower cable tray zone, and openings are provided through the frame to one or more rear trays. The equipment zone defined by the two uprights is open without cable management structure for receiving telecommunications equipment. At least one slack storage zone adjacent to the central zone includes a plurality of cable management devices for storing cable slack.

The invention relates to the technical field of communication optical cables, and discloses a communication optical cable with an anti-bending and anti-compression protection function, which comprises an outer rubber sleeve, a protection structure is arranged in the outer rubber sleeve, a plurality of limiting rings are arranged outside the outer rubber sleeve, the inner wall diameter of each limiting ring is the same as the outer diameter of the outer rubber sleeve, and the outer diameter of each limiting ring is the same as the outer diameter of the outer rubber sleeve. The protection structure comprises a protection ring, an arched groove is formed in the outer wall of the protection ring, the communication optical cable with the anti-bending and anti-compression protection functions is provided with the protection ring, the arched groove formed in the surface of the protection ring can be matched with the arc-shaped plate and the fixing block to form two protection forces which act in opposite directions, and therefore the protection effect of the communication optical cable is improved. When the arch-shaped groove is enlarged under pressure, the arch-shaped groove has high pressure resistance, the arc-shaped plate is matched with the fixing block to form reverse bearing force and pulling force, the bearing force of the protection ring can be further increased, the protection ring can restore the initial state after being pressed, and rebound resilience is generated.

A method of preparing a preformed fiber optic circuit for later termination to at least one fiber optic connector includes providing a substrate for supporting a plurality of optical fibers, the substrate including at least one layer of flexible foil, wherein the flexible foil may be formed from polyethylene terephthalate (PET) according to one example and peeling a layer including at least the optical fibers from the at least one layer of flexible foil.

The invention discloses a ship-shore safety connection system with efficient communication and safety protection, and particularly relates to the technical field of electric power and data connection of ships and shore bases, which comprises a medium-voltage composite optical fiber shore power cable, a dual-system electrical transmission system, a third-party linkage control center and a layered insulation monitoring module, the medium-voltage composite optical fiber shore power cable adopts a double-layer anti-torsion protective sleeve and an anti-electrostatic shielding layer, a double-system electrical transmission system is integrated with a broadband voltage self-adaptive module and a high-speed optical fiber communication repeater, the system realizes ship-shore potential difference monitoring and redundancy switching through a three-way data link, and a layered insulation monitoring module is used for positioning a fault point in real time. Besides, an environment reinforcing assembly, a multi-stage early warning mechanism and a communication line self-healing function are further arranged, the problems that a traditional system is poor in compatibility, low in communication efficiency and insufficient in safety protection are solved, and the system is suitable for efficient and safe connection between the ship and the shore base.

A fiber optic closure is provided, including a base insertable at least partially into the interior of the closure. A bracket assembly includes a plurality of hinge assemblies along a transverse axis. A connector shaft connects an organizer assembly and the base together. The organizer assembly includes a main body extending between a front and a rear, a first sidewall, and a second sidewall. The main body includes a base panel extending between the first sidewall and the second sidewall and from the front to the rear. An upper retention tab extends from one or more of the first sidewall, the second sidewall, or a front wall of the main body. A lower retention tab extends from one or more walls and is positioned proximate along a transverse axis to the base panel relative to the upper retention tab.

An optical fiber cassette is provided including a main body having a pair of sidewalls and an end wall. An adapter wall extends between the sidewalls. A partition wall extends between the sidewalls, the end wall, and the adapter wall. The partition wall is positioned along a height between a top lip and a bottom lip of the sidewalls. A first volume is formed at a first side of the partition wall and a second volume is formed at a second side of the partition wall. A fiber storage area is positioned at the first volume and the second volume. A splice holder is positioned at the first volume or the second volume. A cable opening is configured to receive an external cable into the first volume. A passthrough opening is formed to allow for fiber egress from the first volume to the second volume.