Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

1722results about "Cable installation apparatus" patented technology

Submarine cable detection method and device and nonvolatile storage medium

The invention discloses a submarine cable detection method and device and a nonvolatile storage medium. The method comprises the following steps: acquiring the position of a fault point under the condition that a submarine cable is detected to have a fault; determining a first target search range corresponding to the position of the fault point based on the fault positioning response time, the submarine cable routing information processing time and the ocean current speed; determining a fault probability of each routing section of the submarine cable in the first target search range based on the submarine cable depth data, the water depth data and the environment data in the first target search range; and sorting the fault probabilities of the routing segments to obtain a routing segment sequence, and scheduling the patrol ship to perform fault detection based on the routing segment sequence. According to the method and the device, the technical problems of low response speed and low processing efficiency caused by inaccurate positioning and large range of the fault range propagated by the fault point when the submarine cable is identified to have a fault when the submarine cable is monitored in the related technology are solved.
Owner:CHINA TELECOM CORP LTD

Video inspection system apparatus and methods with relay modules and connection ports

A novel connection port is described for connecting a signal transmitter to an apparatus configured to wirelessly communicate video and images from a pipe inspection system. Such a connection port may establish an electrically conductive pathway to a push-cable and camera head further disposed in cable storage drum that the wireless communication apparatus may couple thereto. A signal transmitter, having an established electrically conductive pathway to the push-cable and camera head, may transmit electromagnetic signals that may be emitted by the push-cable and camera head and further be located at the ground surface via a utility locator device.
Owner:SEESCAN INC

Multifunctional inspection device detection system based on distribution network mobile operation terminal

The invention provides a multifunctional inspection device detection system based on a distribution network mobile operation terminal, and relates to the technical field of electric power detection, and the multifunctional inspection device detection system comprises a portable main terminal of a dynamic collaborative architecture, a wearable terminal for augmented reality interaction and a distributed heterogeneous sensing cluster, which form a closed-loop data chain through an electric power dedicated low-delay wireless communication network; the portable main terminal is integrated with a heterogeneous computing unit with adaptive computing power distribution, can perform real-time fusion analysis on multi-dimensional sensing data, and outputs a visual result containing fault location and confidence; the wearable terminal superposes fault information to a real scene in a three-dimensional marking form through a virtual-real fusion positioning technology, and supports eye movement and voice collaborative interaction; multi-module collaborative acquisition of the distributed heterogeneous sensing cluster is combined with a nanosecond timestamp synchronization mechanism, so that the limitation of traditional single parameter detection is broken through, rich and synchronous basic data is provided for subsequent analysis, and the comprehensiveness of routing inspection is greatly improved.
Owner:SUZHOU POWER SUPPLY COMPANY OF STATE GRID ANHUI PROVINCE ELECTRIC POWER

Power distribution network fault intelligent positioning and self-healing recombination method and system

The invention provides a power distribution network fault intelligent positioning and self-healing recombination method and system. The method comprises the steps that S1, operation data of a power distribution network are acquired and preprocessed; s2, modeling the power distribution network topology into a weighted undirected graph, and constructing transient characteristics including node characteristics and edge characteristics; s3, on the basis of the transient characteristics and the power distribution network topology, the fault type is judged in real time by adopting a graph convolutional network, and a fault section is determined in combination with a traveling wave distance measurement and impedance method; s4, when entering an isolation fault state, automatically generating a power supply reconstruction scheme meeting current, voltage and switch constraints, and selecting an optimal scheme through multi-objective optimization; and S5, issuing a switching instruction according to the optimal scheme to complete topology reconstruction, and updating a fault identification and recombination strategy according to an actual execution result to improve positioning precision and recovery efficiency. According to the invention, a novel fault processing scheme integrating multi-source measurement, an efficient algorithm and online learning can be adopted, so that the power failure time is shortened, the power failure range is reduced, and the toughness of the power distribution network is improved.
Owner:NANPING ELECTRIC POWER SUPPLY COMPANY OF STATE GRID FUJIAN ELECTRIC POWER +2

Aluminum Foil Stripping Device and Method

An aluminum foil stripping device for stripping aluminum foil exposed from one end of a cable includes a fixture, a single laser machine, a pair of cutters, and a grasping mechanism. The fixture is adapted to clamp and fix the cable. The single laser machine is adapted to cut a pre-cut on the exposed aluminum foil of the fixed cable to release the tension of the aluminum foil. The pair of cutters are adapted to simultaneously cut the aluminum foil each of two sides of the exposed aluminum foil, wherein a cutting position of the pair of cutters is aligned with the pre-cut. The grasping mechanism is adapted to grasp the exposed aluminum foil and separate it from the cable at the cutting position by at least one of oscillating or pulling the aluminum foil to remove it from the cable.
Owner:TE CONNECTIVITY SOLUTIONS GMBH +2

Cable maintenance fixing device

The utility model discloses a cable maintenance fixing device which comprises a workbench and a supporting table, a driving motor is fixedly installed at the lower end of the left side of the outer surface of the workbench, a rotating shaft is fixedly installed at the output end of the driving motor, and first bevel gears are fixedly installed at the two ends of the rotating shaft. The two ends of the top of the workbench are movably connected with threaded sleeves through bearings, and second bevel gears are fixedly installed at the bottoms of the threaded sleeves and engaged with the first bevel gears. Through the arrangement of the two groups of lower clamping plates, the two ends of a cable needing to be maintained can be conveniently supported, through the arrangement of the driving motor, the rotating shaft, the first bevel gear, the second bevel gear, the threaded sleeve, the workbench, the first screw rod, the lower clamping plates and the upper clamping plates, the effect of simultaneously clamping and fixing the two ends of the cable is achieved, the overall operation is convenient and rapid, and the maintenance efficiency is improved. And great convenience is brought to cable maintenance operation, and personnel can use the cable conveniently.
Owner:XIAN CONGJU ELECTRONIC INTELLIGENT TECHNOLOGY CO LTD

Low-voltage cable with protection structure

The invention relates to a low-voltage cable with a protection structure applied to the technical field of cables, and the low-voltage cable comprises a low-voltage cable body and an anti-pull-damage protection mechanism, the anti-pull-damage protection mechanism comprises an anti-damage buffer box, a semi-cylindrical curved cable column is movably arranged in the anti-damage buffer box, and a pull detection supporting cylinder is embedded in the anti-damage buffer box in a penetrating manner; the anti-pulling-damage protection mechanism can provide a buffering protection effect for the low-voltage cable body, when the low-voltage cable body is subjected to large pulling force, the low-voltage cable body can be protected to a great extent, the low-voltage cable body is prevented from being deformed and damaged, the anti-pulling-damage protection mechanism further has an alarm function, and when the low-voltage cable body is subjected to large pulling force, the low-voltage cable body is prevented from being damaged. When the low-voltage cable body is pulled, the loss prevention intelligent alarm device starts the alarm to make an alarm sound to warn and remind related personnel and promote the related personnel to stop pulling the low-voltage cable body, so that the low-voltage cable body can be further prevented from being deformed and damaged due to large pulling force, and the safety of the low-voltage cable is greatly improved.
Owner:JIANGSU HONGJIA CABLE CO LTD

A wire tightening device for electric power construction

The invention discloses a wire-winding and tightening device for electric power construction, which relates to the technical field of cable winding, comprises a self-propelled mechanism and a wire-winding assembly arranged on the self-propelled mechanism, wherein the wire-winding assembly is used for winding up the cable laid on the cable trench bracket, and further comprises at least one cutting assembly, wherein the cutting assembly comprises: an arc track, which is arranged on the self-propelled mechanism via an adjustment frame; a sliding seat, which slides and cooperates with the arc track along a preset path of the arc track; a guide seat, which is slidably connected to the sliding seat; a positioning platform, which is elastically rotatably connected to the guide seat; in the wire-winding and tightening device for electric power construction, the cutting mechanism can cut the cable ties bundled between each bracket and the cable during the walking process of the self-propelled mechanism, and the cable can also be wound up by the wire-winding assembly on the self-propelled mechanism, without manual cutting, which not only reduces the work intensity of the staff, but also improves the wire-winding efficiency during work.
Owner:国网安徽省电力有限公司太和县供电公司 +1

Power cable trench cleaning and maintaining device

The utility model discloses a power cable trench cleaning and maintaining device, which relates to the technical field of power cable laying, and is characterized in that through the arrangement of a mounting disc, a movable cleaning brush and a connecting piece, a worker can pull the movable cleaning brush to enable the movable cleaning brush to slide along the radial direction of the mounting disc in the using process, so that the movable cleaning brush can be cleaned; the positions of the movable cleaning brushes are adjusted, after adjustment, the cleaning range formed by the multiple movable cleaning brushes is changed, the cleaning range of the power cable trench cleaning and maintaining device is expanded or narrowed, the power cable trench cleaning and maintaining device is used for completing cleaning operation of cable trenches with different widths, and a good using effect is achieved in the actual using process. The application range of the power cable trench cleaning and maintaining device is expanded, the movable cleaning brush can be limited through the first fastening bolt after adjustment, so that the movable cleaning brush and the mounting disc are fixed, the cleaning range in the using process is fixed, and range change caused by movement of the movable cleaning brush is avoided.
Owner:GUANGDONG TIANYUEDE POWER TECH CO LTD

Cable grid bridge system and manufacturing method

PendingCN120453949ACable installation apparatus
The invention discloses a cable grid bridge system and a manufacturing method, and the cable grid bridge system comprises a turning bridge which is composed of a plurality of bridge units which are arranged in a divergent manner, and an inner arc-shaped structure and an outer arc-shaped structure are formed; each bridge unit comprises two parallel U-shaped wefts and a plurality of radial line units, each U-shaped weft is composed of an outer vertical beam, a bottom beam and an inner vertical beam, and each radial line unit comprises a bottom radial line unit, an outer diameter line unit and an inner diameter line unit which are respectively connected to different parts of the corresponding U-shaped weft; the outer diameter line units are connected to form a continuous bridge outer diameter line; the inner vertical beams of the adjacent bridge units abut against each other, the inner diameter line unit is provided with two ends, reinforcing ribs are welded between the bottom beams, a bridge bottom diameter line is formed, and therefore the turning bridge system and the manufacturing method are low in cost and convenient to manufacture.
Owner:VICHNET COMM SCI & TECH

Cable surface damage detection device

The invention relates to the technical field of cable surface damage detection, and discloses a cable surface damage detection device which comprises a supporting frame, a supporting plate is fixedly connected to the middle of the supporting frame, an input arc-shaped plate is fixedly connected to the position over the supporting frame, and an output arc-shaped plate is fixedly connected to the position over the supporting frame. When a traction device drives a cable to enter a detection cylinder, a driving motor is started, the output end of the driving motor rotates to drive an output rotating shaft to rotate, the output rotating shaft rotates to drive a gear to rotate, the gear rotates to drive a rotating sleeve on a gear ring to rotate, and the rotating sleeve rotates to drive a first connecting block in a cleaning mechanism to rotate; the first connecting block rotates to drive the fixed bent rod to rotate, the fixed bent rod rotates to drive the cleaning roller on the cleaning rod to rotate along the outer wall of the cable, and the cleaning roller is arranged to facilitate removal of impurities adhered to the outer wall of the cable, so that the impurities on the outer wall of the cable are prevented from affecting the detection accuracy of the device.
Owner:HUAIYIN INSTITUTE OF TECHNOLOGY

Cable inspection path generation system and method based on hidden danger points

The embodiment of the invention discloses a cable inspection path generation system and method based on hidden danger points, and the method comprises the steps: obtaining a cable line diagram of a to-be-inspected region and the collection data of corresponding monitoring nodes in a preset time, and determining a plurality of abnormal monitoring nodes meeting a preset abnormal condition based on the collection data, acquiring position data of the abnormal monitoring nodes, screening the abnormal monitoring nodes according to the position data to obtain a plurality of hidden danger nodes, and performing centralized division on the hidden danger nodes based on the position data to obtain a plurality of centralized node combinations and the number of combined nodes, and comprehensively evaluating the centralized node combination according to the number of the combined nodes and the collected data of the hidden danger nodes, and connecting the hidden danger nodes based on the evaluation result of the comprehensive evaluation and the position data to obtain a cable inspection path. According to the scheme, the routing inspection path is generated through the determined hidden danger points in the cable line, the rationality and routing inspection efficiency of the routing inspection path can be improved, and cable hidden dangers can be found in time.
Owner:GUANGZHOU PANYU CABLE WORKS

Anti-shrink back device

In an example, an anti-shrink back device is positionable at least partially around insulation of an electrical conductor at an end of the insulation adjacent to an uninsulated segment of the electrical conductor. The anti-shrink back device includes a band mechanically tightenable at least partially around the insulation at the end of the insulation adjacent to the uninsulated segment to secure or inhibit movement of the end of the insulation longitudinally relative to the electrical conductor.
Owner:SHOALS TECHNOLOGIES GROUP LLC

Electrical cable assembly, method and apparatus for making same and electrical terminal for same

An electrical cable assembly (10) is presented herein. The electrical cable assembly (10) includes a multiconductor flat cable (12) including a first and second electrically conductive wire (14) arranged in a coplanar fashion with each other and encased within a planar dielectric structure (16). A slot (18) is defined in the planar dielectric structure (16) intermediate the first and second wires (14), thereby forming first wing features (20) in the dielectric structure (16) extending from the first wire (14) and second wing features (20) extending from the second wire (14). Exposed portions of the first and second wires (14) extend beyond the first and second wing features (20). A method (200) of forming the electrical cable assembly (10), an apparatus (100) for forming the electrical cable assembly (10), and an electrical terminal (30) configured for use in the electrical cable assembly (10) is also presented.
Owner:APTIV TECHNOLOGIES AG

Submarine cable center clamp falling maintenance device

The utility model discloses a submarine cable center clamp falling maintenance device which is used for fixing a J-shaped pipe and a submarine cable and comprises a horn mouth clamp, an adapter flange, a metal limiter, a bending limiter and a telescopic transition joint. The horn mouth clamp is used for holding and fixing a horn mouth of the J-shaped pipe, two connecting grooves are oppositely formed in the horn mouth clamp, the two connecting grooves are matched to fix the adapter flange, the adapter flange is further connected with a plurality of metal limiters and a plurality of bending limiters, and the bending limiters are fixed with an undamaged limiter group through telescopic transition joints; the utility model is based on the maintenance device. According to the utility model, efficient underwater operation maintenance can be carried out on the damaged center clamp and the bending limiter, the submarine cable protection is enhanced, the service life of the submarine cable is prolonged, the maintenance operation difficulty is reduced, the construction steps are simplified, and the maintenance cost is greatly reduced.
Owner:SUZHOU XIBEIYOU OCEAN ENG EQUIP CO LTD

Prefabricated in-wall junction box assembly deepening design and installation method

According to the prefabricated in-wall junction box assembly deepening design and installation method provided by the invention, through deepening design of junction box positioning, junction box cover plate deepening design and installation and prefabrication forms, collision between an electric appliance junction box and reinforcing steel bars is avoided, electromechanical professional one-time forming after a concrete structure is completed is realized, and the construction efficiency is improved. Deepened design and installation quality of an electrical major on a concrete structure are guaranteed, the processing period and the construction period can be shortened through prefabrication, and the purpose of controlling construction quality and progress is achieved. Through a prefabricated, parameterized and modularized deepening design method, the problems of positioning, collision and efficiency of traditional wire box embedding are solved, and comprehensive optimization of construction quality, progress and cost is achieved.
Owner:BEIJING NO 3 CONSTR ENG

Photovoltaic power generation operation and maintenance line marking device

The utility model relates to the technical field of electric power engineering, aims to solve the problems that in the prior art, operation steps are complex and tedious, rapid marking is inconvenient, the clamping effect is poor and the position cannot be adjusted, and provides a photovoltaic power generation operation and maintenance line marking device which comprises a protection block. The protection block is provided with an upper shell and a lower shell; a first baffle is arranged at one end of the protection block, the first baffle is connected to one end of the protection block in a swinging mode, a second baffle is arranged at the other end of the protection block, the second baffle is detachably connected to the other end of the protection block, and through holes are formed in the axis of the first baffle and the axis of the second baffle; a protection mechanism is arranged in the protection block, one side of the upper shell is hinged to one side of the lower shell, a limiting mechanism is arranged between the other side of the upper shell and the other side of the lower shell, and the other side of the upper shell is detachably connected to the other side of the lower shell through the limiting mechanism. The device has the beneficial effects that the operation steps are simple and convenient, a worker can conveniently and quickly mark, the clamping effect is good, and the position can be randomly adjusted.
Owner:THREE GORGES GRP YUNNAN ENERGY INVESTMENT CO LTD

Cable trench partition management method and system, storage medium and electronic equipment

The invention provides a cable trench partition management method and system, a storage medium and electronic equipment, and relates to the technical field of fire management. According to the technical scheme provided by the invention, the to-be-managed section can be scientifically and reasonably divided according to the actual distribution condition of the fire risk, and the problem of inaccurate section division in a traditional partition mode is avoided. The method achieves the dynamic adjustment of a to-be-managed section through the calculation of a fire risk broken line in combination with the management capability of the subarea control cabinet, enables the risk level of each section to be matched with the management and control capability of the control cabinet, and improves the utilization rate of the control cabinet. And according to specific fire risk types of different to-be-managed sections, personalized fire management schemes are automatically configured for the corresponding subarea control cabinets. Compared with a unified management strategy in the prior art, a more refined fire management scheme can be provided.
Owner:HEBEI GUOHUA SAFETY TECH ENG CO LTD

High-voltage cable joint temperature field distribution simulation analysis method and system under broadband disturbance

The invention relates to the technical field of power systems, in particular to a high-voltage cable joint temperature field distribution simulation analysis method and system under broadband disturbance. Constructing an electric-magnetic-thermal multi-physics field coupling simulation model of the alternating-current high-voltage cable joint to be tested; performing hierarchical grid division on the electric-magnetic-thermal multi-physics field coupling simulation model; simulating the electric-magnetic-thermal multi-physical field coupling simulation model under different broadband disturbance conditions by considering physical field boundary conditions to obtain a broadband temperature field distribution result and harmonic loss distribution data; and according to the broadband temperature field distribution result and the harmonic loss distribution data, quantifying the internal temperature field distribution change characteristics of the high-voltage cable joint under broadband disturbance. According to the method, through accurate simulation calculation of temperature field distribution of the high-voltage cable joint under broadband disturbance, safe and stable operation of the high-voltage cable joint under the broadband disturbance environment is ensured.
Owner:GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD

Cable management assembly and cable management method

The present disclosure relates to a cable management assembly and a cable management method. The management assembly includes an assembly bracket and a cable management bracket. During assembly, a cable female element is mounted on the cable management bracket, the assembly bracket is mounted on a side surface of a module body facing the cable management port, and an external force is exerted on the module body to move the module body into a housing. When the module body is moved to the assembly bracket is aligned with the cable management port, the movement of the module body is stopped, and the cable management bracket is mounted on the assembly bracket through the cable management port. After the management cable bracket is mounted on the assembly bracket, the module body continues to be moved in the housing until the module body is moved to a mounting position.
Owner:SQ TECH (SHANGHAI) CORP +1

Power transmission line construction wire clipper

The utility model discloses a power transmission line construction wire clipper which comprises a wire clipper body, a protection assembly is fixedly installed on one side of the wire clipper body, the protection assembly comprises a fixing frame and a spring, the fixing frame is fixedly installed on one side of the wire clipper body, the spring is fixedly connected to the inner side wall of the fixing frame, one end of the spring is fixedly connected with a circular block, and the circular block is fixedly connected with the wire clipper body. A round block is arranged on the fixing frame, one side of the round block is fixedly connected with a hemisphere block, a connecting frame is arranged on the inner side wall of the fixing frame, adjusting holes are formed in the two sides of the connecting frame respectively, and the hemisphere block is connected with the adjusting holes in a clamped mode. According to the power transmission line construction wire clipper, through the arrangement of the protection assembly, the wire breaking positions can be adjusted, so that workers are prevented from frequently using one point to conduct wire breaking work, the wire breaking positions can be evenly distributed at all positions of the clipper head, the overall service life can be maximized, and the working efficiency is improved. And the cost for replacing the tong head is reduced, so that the use effect is better.
Owner:NINGXIA POWER TRANSMISSION ENG CO LTD

Cover plate opening and closing device

The invention provides a cover plate opening and closing device, and the device comprises at least two fixed shafts which are arranged in a cable trench in the width direction of the cable trench, and the fixed shafts extend in the length direction of the cable trench; the jacking rods extend in the width direction of the cable trench, the middles of the at least two jacking rods are hinged to the at least two fixing shafts in a one-to-one correspondence mode, the first ends of the jacking rods are provided with cover plate matching parts, and the connecting rod extends in the width direction of the cable trench and is hinged to the second ends of the at least two jacking rods. When the jacking assembly is in the storage state, the cover plate matching part extends upwards out of the cable trench, and when the jacking assembly is in the storage state, the cover plate matching part is downwards stored in the cable trench; the electric driving piece is in driving connection with the connecting rod so as to drive the jacking assembly to be switched between the jacking state and the storage state. Through the technical scheme provided by the invention, the problem that a large amount of manpower and time are consumed when the cover plate needs to be frequently opened and closed in the prior art can be solved.
Owner:GUANGDONG POWER GRID CO LTD +1

Electrical feedthrough

An electrical feedthrough is providing that includes a base body, an insulating material, an electrical conductor, a creepage distance extension, and a sealing member. The base body has a through opening extending therethrough. The insulating material is in the through opening. The electrical conductor extends through the insulating material such that a portion of the electrical conductor protrudes from the insulating material. The creepage distance extension surrounds at least a section of the portion. The sealing member is between the insulating material and the creepage distance extension. The sealing member is a seal material that is at least partially mineral and crystalline.
Owner:SCHOTT AG

Dynamic submarine cable quick release device for isolating marine organism attachment

The invention relates to the technical field of submarine cable equipment, and provides a dynamic submarine cable quick release device for isolating marine organism attachment, which comprises a female plug, a male plug, a traction component, an automatic mounting and releasing mechanism and an elastic pin lock catch mechanism, and is characterized in that the automatic mounting and releasing mechanism is used for movably limiting the male plug and the female plug; the automatic mounting and releasing mechanism is of a closed structure; the elastic pin lock catch mechanism has a first locking state for locking the male plug and the traction component in advance and a second unlocking state for unlocking the male plug and the traction component after the male plug and the female plug are locked. The working efficiency is improved, divers do not need to dive underwater for operation, and the operation safety risk of the divers is reduced; meanwhile, the marine organism adhesion resistance of equipment is effectively enhanced, and the underwater service life and reliability of the equipment are improved.
Owner:ZHONGTIAN TECH SUBMARINE CABLE CO LTD +4

Temporary access box on application rod and access method thereof

The invention discloses a temporary access box on an application pole and an access method thereof. The access box comprises a box body, and a disconnecting link respectively connected with a mobile power supply vehicle and a low-voltage overhead line is arranged in the box body; the disconnecting link at the rear end is connected with a circuit breaker, and the circuit breaker is provided with a cable terminal. The pile head of the disconnecting link located at the front end is provided with an intelligent fusion terminal used for collecting and uploading electric quantity and power generation and protection time information. Compared with the conventional operation mode of accessing a transformer body and a busbar, the method for carrying out transformer power protection operation by applying the temporary access box of the power generation car on the pole has the remarkable advantages of high safety, high scene adaptability, high economical efficiency and simplicity in operation through practical application verification.
Owner:SHANGYU CITY SHUNXING ELECTRIC POWER +2

Electric power detection clamping device

The utility model discloses an electric power detection clamping device, which comprises a detection box, the front part of the detection box is provided with a strip-shaped groove, and the two sides of the interior of the strip-shaped groove are respectively connected with a sliding plate in a sliding manner, and relates to the technical field of electric power detection. According to the electric power detection clamping device, by rotating a first threaded rod, the first threaded rod drives a clamping plate to move downwards, so that the clamping plate clamps cables on L-shaped plates, two cables can be conveniently clamped on the two L-shaped plates, electric power personnel do not need to continuously and manually clamp the cables, and then a rotating rod is rotated to drive a first bevel gear to rotate; a first bevel gear drives a second threaded rod to rotate through a second bevel gear, and the second threaded rod drives L-shaped plates to move towards the middle through a threaded sleeve and a sliding plate, so that the two L-shaped plates pull two cables to move towards the middle for detection, the two hands of an electric power worker can be well free for detection, and the efficiency of electric power detection is improved.
Owner:XIAN XINHEYUAN ELECTRIC POWER TECHNOLOGY CO LTD

Building electromechanical pipeline modular construction method based on BIM technology

The invention provides a building electromechanical pipeline modular construction method based on the BIM technology, and relates to the technical field of BIM. The method comprises the steps that comprehensive arrangement of project pipelines is conducted through the BIM technology, adjustment is conducted according to cross collision occurring in the installation process, a support is designed, and support stress is rechecked; the method comprises the following steps of: designing a comprehensive pipeline of a region in BIM software in detail according to nodes, dividing the comprehensive pipeline into electromechanical pipeline installation modules of one unit, and providing a pipeline module three-view; module prefabrication is conducted according to the requirements of a BIM module drawing, after prefabrication is completed, segmented comprehensive electromechanical pipelines are assembled on a manufactured assembly frame, and transportation is conducted after assembly; and an overall installation scheme is planned according to the overall pipeline installation area, the bearing capacity of a floor or a beam is rechecked, and segmented hoisting or lifting and overall module splicing of the pipeline unit modules are carried out. The comprehensive quality and construction safety of the electromechanical pipeline system are improved.
Owner:THE FIRST CONSTR ENG COMPANY LTD OF CHINA CONSTR SECOND ENG BUREAU

Electric isolation protection device for secondary terminal

The invention provides an electric isolation protection device for a secondary terminal. The electric isolation protection device comprises two opposite mistaken touch prevention mechanisms and a shielding strip for connecting the mistaken touch prevention mechanisms. A strong magnet is arranged at the bottom of a fixing base of the mistaken touch prevention mechanism, a reel, an eccentric tensioning shaft and a driving mechanism are arranged in the fixing base, one end of a shielding strip is fixed to the reel after winding around the tensioning shaft, and coil springs on the two sides of the reel enable the shielding strip to be wound in the first direction. A lock shaft mechanism on the fixed seat is provided with a one-way separation shaft, a pivotal shaft and a pawl. The one-way separation shaft slides in the fixing base, the end, facing the reel, of the one-way separation shaft is provided with a first connecting part, the first connecting part is matched with a second connecting part of the reel and provided with a coupled handle, and separation and reunion of the connecting parts can be achieved by pushing and pulling the handle. The ratchet wheel part on the periphery of the one-way separation shaft is matched with the pawl, and the pawl is separated from the ratchet wheel at the first position in the first rotation direction and meshed with the second position in the second rotation direction. The secondary terminal electric isolation protection device is provided to replace an adhesive mode, so that the cost of consumables is reduced, the structure is stable, and the use is convenient.
Owner:GUO WANG ZHE JIANG SHENG DIAN LI YOU XIAN GONG SI CI XI SHI GONG DIAN GONG SI +1

Photovoltaic cable cutting device

The utility model belongs to the technical field of photovoltaic cable processing, and particularly relates to a photovoltaic cable cutting device which comprises a vertical cable cutting machine body. A pair of supporting plates is arranged on the side wall of the vertical cable cutting machine body. The supporting plates are symmetrically arranged on the two sides of the vertical cable cutting machine body and are of the same structure. Firstly, a fixing plate is pulled open, then a cable is erected above a supporting plate, then the fixing plate is loosened, the cable is pre-fixed, then a certain acting force is applied to the fixing plate, an inserting block is extruded and jacked open through a fixing block, and the inserting block can be pushed into the side wall of an inserting groove through elasticity of a first spring; the multiple cables on the two sides are lifted up through the supporting plate, the inclination preventing effect can be achieved when the cables are cut, the use effect after the cables are cut is improved, meanwhile, the supporting plate and the fixing plate are close to each other to buckle the cables, the cables can be clamped and fixed, and the possibility that the cables fall off during cutting is reduced.
Owner:SHANXI YURONG ELECTRIC POWER ENGINEERING CO LTD