276 results about "Aerial cable" patented technology

An aerial inspection system is provided, including an unmanned aerial vehicle (UAV) having an articulated arm coupled thereto. An end effector is coupled to a second end of the articulated arm, the end effector sized and shaped to extend at least partially around an aerial cable in close proximity. One or more sensors are positioned along an inner surface of the end effector, and provide feedback to a control unit. In response, the control unit adjusts a position of at least one of the UAV, the articulated arm, and the end effector such that the end effector maintains a close, non-contact position with respect to the cable.

The cable support block is for temporarily supporting a lower cable to an upper aerial cable. The support block comprises a rigid arcuate frame having an upper yoke straddling the upper cable, and an idle load-bearing roller rotatably mounted on the frame and supporting the lower cable. An elongated coil spring is fixedly attached at a first end thereof to the frame and defines a second opposite free end portion thereof movable relative to the first end by resilient: deformation of the coil spring. To insert a cable into the arcuate frame, the cable is forcibly abutted against the coil spring which will resiliently yield to allow access of the cable into the arcuate frame by being inwardly deformed.

An external suspension system for supporting an inflatable air duct includes a series of external hangers that help hold the duct open while the duct is deflated. In some embodiments, the suspension system supports the duct at a series of points that are broadly distributed in a staggered pattern across the duct, yet the entire duct can be suspended from a single overhead cable, even if the duct is a stepped tube with multiple diameters. The system includes novel ways of locking the hangers to the duct and to the overhead cable.

Using Brillouin reflectance technique in optical time domain adopted in the invention picks up strain information carried by Brillouin frequency drift caused by change of position information and temperature change carried in power of reflected light. Using method of combining absolute positioning with relative positioning makes successive approximation till exact location is determined finally. Comparing with prior art, the invention has features of omitting tedious calculation and additional data log, shortening time for finding out fault point of optical cable line so as to save cost. The method is general suitable method for positioning fault point applicable to optical cable line in position fixing direct burying type, aerial cable or duct optical cable.

A method and an apparatus for de-icing aerial cables are provided. The cable is gripped and slowly twisted for a predetermined number of turns within the elastic domain of deformation of the cable. Mechanical elastic energy is therefore accumulated in the cable. The cable is then released and untwisted under the spring back effect, releasing the energy accumulated therein which breaks and shakes off the ice accumulated on the cable.

The invention provides an aerial cable stripper and a use method thereof. The aerial cable stripper comprises a clamping mechanism, a stripping travel adjustment mechanism, a ratchet wheel mechanism, a fixing mechanism and a cutter holder mechanism. When the aerial cable stripper is used, a first rotating handle of the clamping mechanism is adjusted to clamp a cable, and a second rotating handle of the fixing mechanism is adjusted to firmly fix the cable; a first bolt and a second bolt of the cutter holder mechanism are adjusted, so that a cutter gets close to and touches the sheath of the cable; an annular handle of the ratchet wheel mechanism is rotated, so that the sheath of the cable to be repaired can be cut off; after the peripheral sheath of the cable to be repaired is completely cut off in the previous step, a third rotating handle of the stripping travel adjustment mechanism is adjusted, so that the cutter holder mechanism can move along the axial direction of the cable to be repaired; the last two steps are repeated until the cable sheath of the part to be repaired is completely cut off. The aerial cable stripper is used for repairing live aerial cables and also can be applied in the environment in which an insulating boom cannot be parked in place in a narrow working place.

A dry gas production system for supplying dry gas to a pressurized space, such as an underground conduit or an aerial cable. The dry gas production system may include a modular enclosure that has a removable support to which multiple dry gas production modules are mounted. The support may be a mobile rack wheeled inside the enclosure and likewise removed from the enclosure while supporting the dry gas production modules. The dry gas production system may include multiple dry gas production modules that are operated as required to meet the dry gas demand for the pressurized space. The module compressor may include a variable frequency drive for driving the compressor motor at different speeds and may optionally include a mount with vibration isolation.

A traveling highline aerial cable rail system for moving objects over large distances in three-dimensional space. A pair of track dollies mounted beneath substantially parallel and distantly separated support trusses allow the entire load bearing highline itself to traverse X-axis space. The highline defines the Y-axis of the system and supports a skate that moves along this axis. A platform suspended from the skate moves vertically in the Z-axis and can support extremely heavy loads depending on the gauge of the rope used in the system. A three motor pulley system with a multiplicity of sheaves allow independent movement of all three axes. The system can move objects weighing thousands of pounds stably at 60 miles per hour or more through three-dimensional space. The system can be modularly widened along the X-axis by adding truss sections, and the highline can be configured to up to 1000 feet or more, using rope that can support several tons or more. The Z-axis displacement can be multiplied via a pulley arrangement.

The invention provided an overhead wire deicer, which is composed of a dragging machine driven by batteries and electric motors, and a gas ignition assembly with a cylinder-shaped flame throwing head, and convenient for hanging on an overhead wire so as to quickly deice with combined function of heating power and mechanical force. The invention is suitable for deicing to various transmit electricity and communication overhead wires in any severe weather and geographical environment, capable of standing by on the overhead wires during a long time. Repeated works are remote-controlled by human. The invention is able to coat ice release agent on the overhead wires preliminarily such that it is not easy to freeze, and easy to clear even freezing.

The transport installation with an aerial cable (2) for moving along a path, comprises a maintenance vehicle (1) provided with a gondola (4) mounted on a suspending rod (5) connected to the cable (2) by means of a fastener (9). The maintenance vehicle (1) moreover comprises a gangway (6) mounted on the suspending rod (5). A guiding rod (11) is fixed to the gangway (6) at one of its ends, and is connected to the cable (2) at its opposite end. The gangway (6) has a structure extending in the direction of displacement of the maintenance vehicle (1), and is pivotingly mounted on the suspending rod (5) so as to form an articulated bascule.

The technology described herein provides for the creation of an atmospherically-lifted multi-tethered structure in a semi-stationary position in the atmosphere, which supports cabled cargo handling operations within the three-dimensional space beneath the structure, allowing cargo loads to move directly from source to destination in that same space (between the ground and the atmospherically-suspended structure itself). The design combines a highly configurable aerial platform with the usefulness of complex cargo transportation systems to enable transit both at high speeds over long distances, and at low speeds on the localized level. Constant atmospheric lift from buoyancy and wind effects allows for a flexible transportation infrastructure over a broad three-dimensional area.

The invention discloses an aerial cable deicer. The aerial cable deicer is characterized by comprising a first rack, a second rack, a third rack and a fourth rack, wherein each rack is formed by an upper beam, a lower beam and two side beams which are respectively connected with the upper beam and the lower beam, the upper end and lower end of one side beam are respectively connected with the upper beam and the lower beam, the lower end of the other side beam is connected with the lower beam, a notch is formed between the upper end of the other side beam and the upper beam, a crawling mechanism is arranged inside the upper beam, the crawling mechanism is fitted inside the racks and is internally provided with a fixed clamping mechanism, the lower beams of the first rack, the second rack, the third rack and the fourth rack are connected with a travelling transmission mechanism, and the outer end of the first rack is connected with a deicing mechanism. The aerial cable deicer disclosed by the invention has the advantages of higher deicing efficiency, better safety and high adaptability and is simple to control.

An automatic crossbar on a ski chair-lift for containing seated passengers and facilitating dismounting passengers. A vertically elongated bar (20) with a cross (20a) attached at its base is pivotably suspended from a passenger chair, positioning the crossbar in front of passengers. An elastic closure attachment (9), and / or an automatic locking mechanism (60), is attached between the elongated bar and the chair to retain the crossbar in a closed position and contain passengers. A blocking structure (200) is suspended proximal to the aerial cable above the landing platform. The elongated bar has an upper portion (20v) above its pivotal mount (21b) which impacts the blocking structure as the aerial cable moves the chair forward. The impact causes the upper portion to rotate back as the lower portion and crossbar are levered forward and upward. As the crossbar swings forward from the chair, passengers grasp the crossbar to balance with while standing onto the landing platform.

The invention provides an ice removing machine for overhead cables which can be applied with ice sticking resistance agent. The ice removing machine is applicable to removing ice for one cable, two cables or four combination cables with a frame for maintaining distance between cables in any adverse weather and geographical environment. The ice removing machine has an applicable type of lever bracket cables and an applicable type of tower cables, wherein the former has an external power source, is small in volume and light in weight and can be conveniently hung to the cables; the latter consists of a dragging device driven by a battery and a motor and a gas ignition assembly with cylinder-shaped fire-jet head, can be conveniently hung to the cables to remove ice rapidly by comprehensive function of thermal force and mechanical force and can stand by on the cables for a long time and operate repeatedly according to the remote instructive of human; and the ice sticking resistance agent can be coated on the cables in advance, thus leading the cables to be not easy to ice up and the ice to be removed easily even if the cables are iced up.

An aerial cable placing truck is provided. The truck includes a stringing apparatus which includes a full castoring bullwheel system for positioning a cable. The stringing apparatus pivots from side to side for placing cable on either side of the truck. The truck also includes a cantilevered turret for supporting a boom. The cantilevered turret is positioned to provide an open deck cable route along the truck deck for the cable so that the cable may taken off the truck without cutting the cable from the cable reel. A live fairlead may also be included to provide an indication of fairlead load separate from basket load.

An aerial cable spacer apparatus and associated methods thereto are provided. The aerial cable spacer apparatus includes a spacer arm. A spacer body is connected to the spacer arm. At least one saddle is formed on the spacer body. At least one roller is connected to at least one of the at least one saddle and the spacer body, wherein an exterior surface of the at least one roller is positioned to intersect a cable interface path of the at least one saddle.

An aerial cable spacer is provided with a cable retainer and vertically disposed strengthening tabs or ribs. The cable retainer includes a cable retaining arm. A mid portion of the cable retaining arm has a non-rectangular plus “+” shaped cross section. The plus “+” shaped cross section engages and exerts a force on the cable as the cable retaining arm bends to a closed position. The arm is flexible so as to create a resilient force in conjunction with the plus “+” shaped cross section to securely hold the cable on a cable seat of a main body portion of the aerial cable spacer. A pawl is carried on the arm at a predetermined orientation to engage a corresponding set of teeth on the spacer body for enhanced cable clamping force.

An aerial cable installation having an aerial cable suspended from a suspension point through a suspension device. This device has a clamp having two saddle members engaging the cable on diametrically opposite sides thereof and a plurality of nut and bolt assemblies extending through aligned holes in flanges of said saddle members for resiliently biasing the saddle members toward each other to clamp against the cable with a selected clamping force. To this end, each nut and bolt assembly includes a helical spring mounted on the bolt thereof between said flanges and the nut of the assembly and the springs are compressed a predetermined amout which is adjustable by tightening or loosening said assemblies.

An aerial cable spacer is provided with a cable retainer. The cable retainer includes a cable retaining arm. A mid portion of the cable retaining arm includes a fulcrum point. The fulcrum point engages and exerts a force on the cable as the cable retaining arm bends to a closed position. In the closed position, the bent arm maintains a force on the cable.

The present invention discloses an unmanned aerial vehicle for deicing and accumulated snow removing of an aerial cable. A rotor wing protective cover is oppositely installed at the end surface of one side of the vehicle body, the rotor wing protective cover is internally provided with a rotor wing, air holes are arranged at the end surface of the outer side of the upper portion of the vehicle body, the air holes are oppositely arranged, a camera is installed at the end surface of the front portion of the vehicle body, and the lower portion of the vehicle body is connected with a connection rack, the connection mode is welding, circulation holes are arranged at the end surface of the side of the connection rack, the lower portion of the connection rack is connected with a work platform, a controllable rocking bar is arranged at the outer side of the end surface of the bottom portion of the work platform, one end of the controllable rocking bar is connected with the work platform, the other end of the controllable rocking bar is connected with a fan, an expansion link is arranged at the middle portion of the end surface of the bottom of the work platform, the axis of the expansion link is perpendicular to the work platform, one end of the expansion link is connected with the work platform, and the other end of the expansion link is connected with a snow removing arm, and the snow removing arm is configured to remove ice and snow on a line.

A portable telescopic lifting apparatus (1) for lifting aerial cables (53). The apparatus (1) comprises a tubular housing (2), first and second telescopic members (3, 4) extendible from and retractable into the housing (2), a drive (5, 60) for extending and retracting the telescopic members (3, 4), and a cable-engaging member (51) attached to the second telescopic member (4) for lifting one or more aerial cables (53). The drive (5, 60) comprises a chain lever block (5) and a pulley arrangement (60). In use, the apparatus (1) is positioned below one or more aerial cables (53), the chain lever block (5) is used to raise the first telescopic member (3), the first telescopic member (3) extends from within the housing (2), the second telescopic member (4) extends from within the first telescopic member (3), and cable-engaging member (51) raises the cable / s (53).

An aerial cable spacer is provided with a cable retainer and vertically disposed strengthening tabs or ribs. The cable retainer includes a cable retaining arm. A mid portion of the cable retaining arm has a non-rectangular plus “+” shaped cross section. The plus “+” shaped cross section engages and exerts a force on the cable as the cable retaining arm bends to a closed position. The arm is flexible so as to create a resilient force in conjunction with the plus “+” shaped cross section to securely hold the cable on a cable seat of a main body portion of the aerial cable spacer. A pawl is carried on the arm at a predetermined orientation to engage a corresponding set of teeth on the spacer body for enhanced cable clamping force.

The invention provides a multipoint disturbance detecting and locating method of a polarization sensitive optical time domain reflectometer (P-OTDR), and belongs to the field of distributed type optical fiber sensing and distributed type optical fiber sensing application. Optical time domain signals of the P-OTDR at different moments are accumulated, time-space-axis signals are interlinked to form a two-dimensional original signal matrix, after difference and binarization processing, binarized difference images are subjected to horizontal accumulation preprocessing, and the purpose of multipoint disturbance detecting and high-precision locating of the P-OTDR can be achieved in the mode that the preprocessed binarized difference images are subjected to edge detection and automatic classification. The method has wide application value in the field of safety monitoring of long-distance circumference security and protection, oil and gas transmission pipelines, aerial cables, underground cables and the like.

The invention relates to a black weatherproof polyethylene insulation material for an aerial cable and a preparation method for the same. The black weatherproof polyethylene insulation material comprises the raw materials in percentage by mass: 1-5% of modified polyester, 0.1-0.5% of auxiliaries, 1-5% of carbon black, 10-40% of modified low density polyethylene, and the balance of organosilane crosslinked polyethylene. The preparation method comprises the following specific steps: mixing modified polyester, auxiliaries, carbon black, modified low density polyethylene and organosilane crosslinked polyethylene in a proportioning ratio, and then melting and granulating to obtain the black weatherproof polyethylene insulation material. According to the black weatherproof polyethylene insulation material and the preparation method disclosed by the invention, rice husk and straw are subjected to low-temperature carbonization, therefore, on the one hand, cost is saved, and on the other hand, the original functions of rice husk are kept; the black weatherproof polyethylene insulation material can be used as an adsorbed carrier for exerting the effects of rice husk and straw; and the original performances of rice husk and straw are influenced due to too high temperature and too long time of carbonization.

The present invention discloses an aerial insulation cable material made from the following raw materials by weight: 60-80 parts of SG-3 type PVC (polyvinyl chloride), 20-30 parts of low density polyethylene, 15-25 parts of ethylene-vinyl acetate copolymer, 10-15 parts of bisphenol A type polycarbonate, 15-20 parts of magnesium hydroxide, 5-10 parts of butyl stearate, 4-8 parts of rapeseed oil, 1-2 parts of barium stearate, 2-3 parts of calcium stearate, 3-5 parts of diphenyl isooctyl phosphate, 4-6 parts of 2,2'-ethylenedioxydiethyl bis(2-ethylhexanoate), 8-12 parts of nano sepiolite powder, 15-25 parts of carbon black N660, 5-8 parts of a composite filler, 1-2 parts of catechol, 1-2 parts of dibutyltin dichloride and 5-10 parts of dibutyl isophthalate. The aerial insulation cable material is stable in quality, reliable in performance, excellent in weather resistance, aging resistance and electrical properties, good in toughness, tensile strength, and high temperature resistance, excellent in machining performance, and suitable for 1KV and below aerial cable insulating layers.

A stringing block for aerial electric conductor or other aerial cable, intended for hanging to electric line structures, insulators etc., suitable for both manual and helicopter pilot line or conductor stringing, is disclosed. The block comprises one or more ring-shaped sheaves, each one running over one or two small wheels, installed on a small size frame and rotating around their axes. The block is light enough for to prevent conductor / pilot line escaping the shave groove and friction on the shave flange.

The invention discloses an aerial cable which comprises a reinforced core and an aluminum stranded wire layer, wherein, the aluminum stranded wire layer is divided into an outer aluminum stranded wire layer and an inner aluminum stranded wire layer which are respectively formed by the twisting of a plurality of aluminum wires; each single aluminum wire is coated by an insulation layer; the aerial cable has the advantages that each single aluminum wire is coated or covered by the insulation layer; therefore, currents do not influence each other due to magnetic fields produced by adjacent wires during the transmission process of an alternating current (adjacency effect refers to the phenomenon that wires get close to each other, and the current density in each wire is not even any more) so as to eliminate AC resistance caused by the said 'crowded current' and cause the current transmission to be distributed on each wire, thereby greatly increasing the effective area of a cable conductor and reducing the impedance of the conductor and electric power consumption.

The invention discloses an intelligent cleaning device for an electric power and electric network optical cable line. The intelligent cleaning device for the electric power and electric network optical cable line comprises an upper shell and a lower shell, wherein fixing mechanisms are symmetrically arranged on two sides of the upper shell and the lower shell; the upper shell and the lower shell are connected through the fixing mechanisms; a walking mechanism is arranged on the inner sides of the upper shell and the lower shell, and comprises upper walking rollers, a first lower walking roller, a second lower walking roller, support pieces, a walking motor and a driving piece; the first lower walking roller and the second lower walking roller are symmetrically distributed at two ends of the inner part of the lower shell; two ends of the first lower walking roller and the second lower walking roller are rotatably connected with two sides of the lower shell through bearings; and the walking motor is fixed to the outer side of the lower shell. According to the intelligent cleaning device for the electric power and electric network optical cable line, the aerial cable line can be automatically cleaned, so that impurities and snowflakes in air are prevented from accumulating on the surface of the cable line, the cable line is prevented from being damaged due to excessive load bearing, and the operation stability of an electric power system is improved.

The invention relates to an 8-shaped self-support aerial cable suspension wire stripper, comprising a longitudinal axis, a support base arranged on the longitudinal axis, a jugged block wheel, a cross shaft, a compression sliding axis, a compression spring, a compression spring regulating nut and a top handle, wherein the cross shaft comprises a positioning mechanism and a blade clamp mechanism which are arranged sequentially on the cross shaft from right to left; the compression sliding axis comprises a V-shaped pinch roller which is arranged on the compression sliding axis; the jugged block wheel and the V-shaped pinch roller compress the restrictive coating of the suspension wire part of the 8-shaped cable and the suspension wire part of the 8-shaped cable is pulled by the tooth cusp of the jugged block wheel when the jugged block wheel is rotated. By adopting the stripper, long-distance stripping can be carried out on the suspension wire part of the 8-shaped cable conveniently at the optical cable laying construction site.