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Junction box
PendingUS20250070538A1Cable installations on groundLighting support devicesClassical mechanicsStructural engineering
A junction box can include an enclosure defining a first enclosure end and a second enclosure end, a cavity extending into the enclosure from the first enclosure end towards the second enclosure end, the first enclosure end defining an opening to the cavity; a mounting insert removably positioned within the opening; and a locking collar removably coupled to the first enclosure end, the locking collar being repositionable on the first enclosure end between a tightened configuration and a loose configuration, the locking collar securing the mounting insert to the enclosure in the tightened configuration.
Owner:LUMIEN ENTERPRISE INC
Submarine cable laying robot with multi-geological adaptability
PendingCN119994733ACable installations on groundSoil-shifting machines/dredgersBuoyancy regulationStructural engineering
The submarine cable laying robot comprises a main body frame, a buoyancy adjusting device is arranged at the top of the main body frame, spiral propellers are arranged on the two sides of the main body frame respectively, a cable pressing device and two spraying devices are arranged at the bottom of the main body frame, and the two spraying devices are symmetrically arranged at the bottom of the main body frame. The cable pressing device is arranged corresponding to the two spraying devices; the spiral propeller is used for driving the submarine cable laying robot to walk on the seabed, the buoyancy adjusting device is used for adjusting the buoyancy of the submarine cable laying robot on the seabed, and the two spraying devices are used for digging cable burying grooves with the corresponding depths in the corresponding positions of submarine cables in the mode of spraying high-pressure liquid. And the cable pressing device is used for pressing the cable into the cable burying groove. The device has the universality of different cable burying depth operations and the universality of different seabed geological operations, the operation efficiency and safety are improved, and the cost and the risk are reduced.
Owner:WUHAN STAR OCEAN TECH CO LTD
Sleeve type bending limiter convenient to disassemble
InactiveCN119401327AImprove stress concentrationImprove the protective effectCable installations on groundBolt connectionSeabed
The invention discloses a sleeve type bending limiting device convenient to disassemble, and relates to the technical field of ocean pipe cable protection equipment. The bending limiter comprises a plurality of bending limiting units and a plurality of sleeves, and the adjacent bending limiting units are connected through the sleeves; the bending limiting units are used for containing ocean pipe cables, and the ends of the bending limiting units are provided with connectors. The sleeves comprise a first sleeve and a second sleeve, one sides of the first sleeve and the second sleeve are connected through a connecting piece, and the other sides of the first sleeve and the second sleeve are connected through a bolt; and clamping grooves are formed in the first sleeve and the second sleeve. The bending limiting unit is matched with the sleeve, bending deformation of the bending limiting device is achieved through movement of the connector in the clamping groove, the bending moment of the ocean pipe cable is transferred, the stress concentration condition of the bending limiting device is remarkably optimized, the protection performance of the ocean pipe cable in the complex seabed environment is enhanced, and the service life of the ocean pipe cable is prolonged. And in addition, disassembly and replacement are convenient when faults occur in the service process, and later maintenance is facilitated.
Owner:OCEAN UNIV OF CHINA +1
Cover plate with graphene heating film
InactiveCN119419680AGuaranteed clarityincrease viewing areaCable installations on groundTransparent/reflecting heating arrangementsWater vaporGraphite
The invention relates to a cover plate with graphene heating films, and belongs to the technical field of cover plates, the cover plate comprises a transparent cover plate body and two graphene heating films, the two graphene heating films are arranged on the lower side surface of the transparent cover plate body, and a visible area is formed between the two graphene heating films. Through the arrangement of the graphene heating film, when mist or condensation is attached to the inner side face of the transparent cover plate body, the graphene heating film can generate a large amount of heat, so that the inner side face of the transparent cover plate body is rapidly heated, water vapor on the inner side face of the transparent cover plate body is evaporated, and the definition of the transparent cover plate body is guaranteed; and the observation effect on the internal condition of the cable trench is improved.
Owner:JIANGSU MODUN ELECTRIC
Offshore wind power submarine cable scouring protection device
InactiveCN119695764ACable installations on groundPisciculture and aquariaMarine engineeringOffshore wind power
The invention relates to the technical field of underwater optical cables, and discloses an offshore wind power submarine cable scouring protection device which comprises a wind power body, a connecting body connected with the water bottom is arranged on the surface of the wind power body, and a cable body is connected to the surface of the wind power body; when the cable body is laid, the cable body can be connected with the ground under the action of the connecting shell, impact of water can be prevented under the action of the protection mechanism, and then the protection capacity of the connecting shell on the cable body is improved. In daily use of the connecting shell, crabs can be caught under the action of the catching mechanism, so that the crabs are located in the connecting shell, the crabs prey on algae on the surface of the cable body, the possibility that the algae survive on the surface of the cable body is reduced, and under driving of the protection mechanism, the crabs are prevented from being damaged. And the driving mechanism and the oxygen supply mechanism supply oxygen to the connecting shell, so that the survivability of the crabs is improved.
Owner:SHENZHEN GUONENG CHENTAI TECH CO LTD
Combined bending protection device based on dynamic design
PendingCN120150049ACable installations on groundClimate change adaptationConical tubeClassical mechanics
The invention discloses a combined bending protection device based on dynamic design, and relates to the technical field of submarine cable protection. Oyster reefs are arranged around the protection device, the protection device comprises a J-shaped pipe, a center clamp, a conical pipe and a bending limiter which are sequentially connected, one end of the center clamp is connected with the J-shaped pipe, and the other end of the center clamp is connected with the bending limiter through the conical pipe. The bending limiter comprises a plurality of bending limiting units connected in sequence, each bending limiting unit comprises two bending limiting single bodies, one side of each bending limiting single body is provided with a rotating protruding block, the other side of each bending limiting single body is provided with a rotating groove, and the rotating protruding blocks are rotationally connected with the rotating grooves. Through cooperation of the J-shaped pipe, the conical pipe and the bending limiting device, the stress concentration problem can be effectively relieved, the protection performance of the submarine cable in a complex dynamic environment is enhanced, the construction efficiency is remarkably improved through cooperation of the rotating protruding block and the rotating groove, meanwhile, the submarine cable can be prevented from being scoured through cooperation of the protection device and the oyster reef, and the service life of the submarine cable is prolonged. The method has good protective property and ecological property, and can generate economic benefits.
Owner:OCEAN UNIV OF CHINA
Ocean pipe cable damping device
PendingCN120608991ACable installations on groundPipe elementsBuoyancy regulationStructural engineering
The invention discloses a marine pipe cable damping device which comprises a double-layer pipe body, a damping device and a damping device, and the double-layer pipe body is arranged outside a marine pipe cable in a sleeving mode and fixed to the marine pipe cable through a buckling device; the double-layer pipe body comprises an outer-layer pipe and an inner-layer pipe which are coaxially arranged, an interlayer space is arranged between the outer-layer pipe and the inner-layer pipe, a drainage hole communicated with the interlayer space is formed in the outer-layer pipe, an inflation buoyancy module is arranged in the interlayer space, a vibration power generation device is fixed to the outer-layer pipe, and a water pressure sensor is installed on the outer surface of the vibration power generation device; a controller is arranged on the outer surface of the outer-layer pipe, and the vibration power generation device is electrically connected with the controller; the water pressure sensor is electrically connected with the controller, and the controller is electrically connected with the inflatable buoyancy module; and a plurality of vibration reduction fins are irregularly distributed and fixed on the outer surface of the outer-layer pipe. The marine flexible pipe cable can achieve efficient vibration reduction and buoyancy adjustment, and then the stability, durability and safety of the marine flexible pipe cable in a complex dynamic environment are improved.
Owner:HAIKOU SUB-BUREAU GUANGZHOU BUREAU EHV TRANSMISSION CO OF CHINA SOUTHERN POWER GRID CO +1
Apparatus, system, and method for a tubular body to traverse a gap
An apparatus, system, and method for deploying a tubular body across a gap. The tubular body is fixed to a surface on either side of the gap. The system includes a first connector housing fixed to the first surface and a second connector housing fixed to a second surface. An insertion end of the first connector housing is smaller than a receiving end of the second connector housing such that the insertion end of the first connector is insertable into the receiving end of the second connector housing. The tubular body passes continuously through the interior volume of the first connector housing and through the interior volume of the second connector housing.
Owner:TRAXYL INC
Submarine cable laying device and submarine cable laying construction method
PendingCN119726497ACable installations on groundApparatus for laying cablesExhaust valveMechanical engineering
The invention relates to the technical field of submarine cable laying, and discloses a submarine cable laying device and a submarine cable laying construction method.The submarine cable laying device comprises a buoyancy part, an exhaust valve, an inflation unit and a control module, the buoyancy part wraps a submarine cable and is provided with an inflation cavity, and the inflation cavity is provided with an air vent. And the exhaust valve is arranged at the air vent and used for controlling opening and closing of the air vent. The inflation end of the inflation unit can communicate with the ventilation opening so as to inflate the inflation cavity. The control module is in communication connection with the exhaust valve and the inflation unit, can control the inflation unit to inflate the inflation cavity according to the preset inflation amount of the buoyancy piece, and can control the buoyancy piece to exhaust through the exhaust valve, so that the submarine cable and the buoyancy piece are laid on the seabed along a preset path. The buoyancy piece is buried together with the submarine cable after being exhausted, the working procedure of disassembling the buoyancy piece is omitted, and the construction efficiency can be improved. And the buoyancy piece is always coated outside the submarine cable, so that the submarine cable is protected. The laying requirements of submarine cables of different specifications can be met by adjusting the preset inflation volume, and the construction flexibility is high.
Owner:CTG JIANGSU ENERGY INVESTMENT CO LTD
Submarine cable armored steel wire fixing clamp and underwater connector box
ActiveCN222531305UMeet the needs of useCable installations on groundCable junctionsMarine engineeringStructural engineering
The utility model relates to the technical field of submarine cable maintenance, and provides a submarine cable armored steel wire fixing clamp and an underwater connector box. The fixing clamp for the armored steel wire of the submarine cable comprises a first fixing piece, a second fixing piece and a first connecting piece, the first fixing piece and the second fixing piece are used for clamping the armored steel wire between the first fixing piece and the second fixing piece, and the first connecting piece is used for fixing the first fixing piece and the second fixing piece so as to clamp the armored steel wire. According to the fixing clamp for the armored steel wire of the submarine cable, by arranging the first fixing piece, the second fixing piece and the first connecting piece, the armored steel wire can be clamped between the first fixing piece and the second fixing piece, it is guaranteed that the tensile property of the armored steel wire is not affected, and therefore the use requirement of the armored steel wire in the underwater working environment is met.
Owner:ZHONGTIAN TECH MARINE SYST CO LTD
Anchoring device for submarine cable
The utility model discloses an anchoring device for submarine cables, which relates to the technical field of anchoring devices and comprises a base, the upper surface of the base is rotatably connected with a rotating plate, an anchoring seat is fixedly mounted on the upper surface of the rotating plate, a mounting groove is formed in the surface of the anchoring seat, and a reminding component is arranged in the anchoring seat. According to the anchoring device for the submarine cable, through the arrangement of the reminding assembly, when the anchoring device is damaged, the submarine cable cannot be effectively limited, the submarine cable can slide in the anchoring device, then the submarine cable is driven to slide on the surface of the rolling wheel, and the rolling wheel is made to rotate; and when a patrol ship on the sea surface penetrates through the floating block, the anchoring device is damaged, and the submarine cable cannot be effectively limited, so that a worker can be notified to carry out maintenance operation in time, and the loss caused by accidents is further reduced.
Owner:SHANGHAI FULAN OFFSHORE ENG CO LTD
Dynamic submarine cable system for multiple platforms
ActiveCN223321023UCable installations on groundWind motor supports/mountsMarine engineeringElectric cables
The utility model discloses a dynamic submarine cable system for multiple platforms, which comprises a dynamic submarine cable, a bending limiter, J-shaped cable protection pipes, a buoyancy block, a floating type photovoltaic platform and a fan tower drum, two groups of J-shaped cable protection pipes are respectively arranged on the floating type photovoltaic platform and the fan tower drum, and the bending limiter is arranged at the bottom of each J-shaped cable protection pipe; the dynamic submarine cable penetrates through the J-shaped cable protection pipes and the bending limiting devices on the two sides, and a plurality of buoyancy blocks are arranged on the dynamic submarine cable and located between the two bending limiting devices in a sleeving mode. The dynamic cable system can adapt to changes of marine environments such as waves, tides and ocean currents, and therefore the safety performance of submarine cables is improved; if the tension of the submarine cable is too large, the wet weight can be reduced by increasing the length of the submarine cable or adjusting the using number of the buoyancy blocks, and if the curvature of the submarine cable is too large, the dynamic section length of the submarine cable needs to be shortened, and meanwhile, the tension is increased and adjusted to meet the requirement.
Owner:DATANG GUOXIN BINHAI OFFSHORE WIND POWER CO LTD +3
Anti-scour structure for submarine cable
The invention relates to the technical field of submarine cables, and discloses an anti-scour structure for a submarine cable. According to the anti-scour structure, the installation body is directly installed on the outer side of the submarine cable, protection can be provided for the submarine cable, the elastic deformation body arching in the direction of the installation body is arranged, the elastic deformation body and the supporting part are arranged in the same plane after being pressed, and a plane negative pressure structure is formed; the submarine cable is fixed by adsorbing sand at the bottom, water flow scouring and external dragging force are effectively resisted, and compared with a traditional scheme that the burial depth is increased or a large-area cement board is used, the anti-scouring structure of the structure can achieve negative pressure adsorption, can be more tightly attached to the submarine topography, prevents sand loss, and improves the service life of the submarine cable. Large-scale excavation or laying on the seabed is not needed, the construction period is shortened, the construction cost and time are remarkably reduced, and the risk of missing the optimal construction window is reduced.
Owner:CHINA THREE GORGES CORPORATION
Auxiliary tool for cable laying
ActiveCN119921226ACable installations on groundCable installations in underground tubesStructural engineeringElectric cables
Owner:XIAN XINTIANQIAN CONSTR & INSTALLATION CO LTD
Cover plate opening and closing device
ActiveCN119482138AOpen and closeIncrease the stress pointArtificial islandsCable installations on groundStructural engineeringElectric drive
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
Cable system connectable to an offshore structure
A transfer system connectable to an offshore structure. The transfer system has a transfer device connectable to a connector box on the offshore structure. The transfer device has a tensile element. The transfer device is defined with a lower section and an upper section, where the tensile element is removed from at least parts of the upper section. The transfer system further has a hang-off device with a base mechanically connectable to the offshore structure. The hang-off device has a first element pivotably connected to the base at a first pivoting axis. The lower section is suspended from the first element into a wet zone of the offshore structure while the upper section is extending above the first element into a dry zone of the offshore structure.
Owner:NEXANS SA
Cable laying robot submarine cable far-field sensing and positioning method based on multi-modal sensor, electronic equipment and readable storage medium
The invention belongs to the technical field of ocean engineering equipment and underwater detection, and particularly discloses a far-field sensing and positioning method for a submarine cable of a cable laying robot based on a multi-modal sensor, electronic equipment and a readable storage medium. The method comprises the following steps: S1, acquiring acoustic, optical, magnetic and electric field original data of the submarine cable by using a multi-mode sensor array; s2, constructing an original data set with time-space synchronization, ensuring that timestamps and space coordinates of acoustics, optics, magnetic force and electric field data are consistent, and forming a standardized four-dimensional tensor data set; s3, performing space-time registration and joint noise reduction processing on the original data to generate standardized sensing data; s4, constructing a dynamic environment fusion model for fusing the real-time sea condition parameters and the prior knowledge base to generate environment constraint conditions; s5, iteratively calculating the position of the cable by adopting a prediction-correction mechanism based on a particle filtering and model prediction control algorithm; and S6, outputting cable positioning coordinates and cable laying robot adaptive path planning parameters.
Owner:SHANGHAI UNIV
An automatic laying and wiring device for communication cables
ActiveCN119209311BCable installations on groundApparatus for laying cablesTelecommunicationsStructural engineering
The present invention relates to the technical field of communication equipment, and discloses an automatic laying and wiring device for communication cables, including a laying roller and a serrated plate. The side wall of the serrated plate is movably installed with a laying roller through a mounting frame. A communication cable is wound around the arc-shaped outer wall of the laying roller. The bottom side wall of the serrated plate is fixedly connected with a guiding sleeve. A large guiding wheel is rotatably installed on the inner surface of the guiding sleeve. A cable laying component is arranged inside the guiding sleeve to achieve preliminary positioning of the communication cable in the trench during laying. A soil covering component is arranged inside the guiding sleeve to cover the laid communication cable and pat it tightly. By setting the cable laying component, the communication cable is gradually loosened as the laying wheel rotates. During this process, the guiding and pressing positioning of the communication cable laying are realized, avoiding the situation of deviation or skew after laying between the communication cable and the ground trench, thereby affecting the laying effect of the communication cable and the protection effect of the trench on it after laying.
Owner:国网黑龙江省电力有限公司齐齐哈尔供电公司
Telescopic seabed first-aid repair adapter for bending limiter
ActiveCN223858823UCable installations on groundCable junctionsStructural engineeringMechanical engineering
The utility model relates to a telescopic seabed emergency repair adapter of a bending limiter, which comprises a first joint, a second joint, a first telescopic cylinder and a second telescopic cylinder, a telescopic structure is arranged between the first telescopic cylinder and the second telescopic cylinder, and the first telescopic cylinder and the second telescopic cylinder are telescopically lapped together. The telescopic structure enables the length of the first telescopic cylinder and the second telescopic cylinder which are lapped together to change; the first connector and the second connector are the same in structure, the first connector is assembled at one end of the first telescopic cylinder, and the second connector is assembled at one end of the second telescopic cylinder. The telescopic seabed first-aid repair adapter of the bending limiter is simple in structure, easy to operate, high in stability and high in adaptability due to the fact that the telescopic length is variable, and when first-aid repair personnel conduct seabed first-aid repair, operation is easy and convenient, consumed time is short, and safety and reliability are achieved.
Owner:SUZHOU GREERUI OCEAN ENG EQUIP CO LTD
Heat dissipation device and heat dissipation method for J-shaped pipe section of submarine cable
The invention discloses a heat dissipation device and a heat dissipation method for a J-shaped pipe section of a submarine cable. The heat dissipation device comprises a cable; the J-shaped pipe sleeves the cable, the J-shaped pipe comprises an air section and a seawater section, the air section is higher than the sea surface, and the seawater section is lower than the sea surface; the gravity heat pipe is arranged in the air section and attached to the outer surface of the cable, and the gravity heat pipe can conduct heat with the cable; a heat exchange working medium is loaded in the gravity assisted heat pipe, can evaporate and move upwards when heated, and can condense and move downwards when cooled; and the radiator is connected with the top of the gravity assisted heat pipe and used for transferring cooling capacity to the heat exchange working medium. Local heat exchange is carried out on the cable located at the air section of the J-shaped pipe through the gravity heat pipe, and the influence of high temperature on the cable at the position is relieved; the vertically-arranged cable is subjected to heat exchange and cooling by utilizing the characteristic that the heat exchange medium moves upwards after being heated and evaporated and moves downwards after being cooled and condensed. The invention relates to the technical field of cable heat dissipation.
Owner:SOUTH CHINA UNIV OF TECH +1
Multifunctional cable trench of transformer substation
The invention relates to the technical field of cable trenches, and discloses a multifunctional cable trench for a transformer substation, which comprises a cable trench, the inner wall of the cable trench is fixedly connected with a reinforcing plate, the surface of the reinforcing plate is provided with a screw hole, the inner wall of the screw hole is in threaded connection with a threaded rod, and the reinforcing plate is internally provided with a supporting part; the supporting part comprises a sliding groove plate, the surface of the sliding groove plate is fixedly connected with the surface of the reinforcing plate, a movable frame is slidably connected to the surface of the sliding groove plate, and a sliding plate is fixedly connected to the inner wall of the movable frame. The reinforcing plate is arranged in the cable trench, the bearing strength of the cable trench is improved through the reinforcing plate, the sliding groove plate is arranged on the surface of the reinforcing plate to limit the moving frame, the sliding plate is arranged in the moving frame, and the moving frame is limited on the surface of the sliding groove plate through the sliding plate, so that the cable supporting stability of the moving frame is improved; the supporting frame is arranged on the surface of the moving frame, an operator can lay the cable on the surface of the supporting frame, and it is ensured that the cable can be stably placed on the reinforcing plate.
Owner:STATE GRID SHANDONG ELECTRIC POWER CO
Submarine cable dynamic anchoring device for submarine cable construction and use method of submarine cable dynamic anchoring device
PendingCN120184839ACable installations on groundOptical fibre/cable installationClassical mechanicsStructural engineering
The invention discloses a submarine cable dynamic anchoring device for submarine cable construction and a using method thereof, and relates to the field of submarine cable construction.The submarine cable dynamic anchoring device comprises a base, a movable seat and a mounting seat, positioning assemblies are symmetrically mounted at the two ends of the top of the mounting seat, and threaded rods are in threaded connection with the interiors of inner cavities of the positioning assemblies; the bottom of the threaded rod is rotationally connected with a fixing assembly, the two ends of an inner cavity of the positioning assembly are symmetrically and movably connected with clamping blocks, the two ends of an inner cavity of the movable base are symmetrically and movably connected with movable plates, a soft cushion is installed in the center of the top of the movable base, and the two ends of the two sides of the movable base are symmetrically and movably connected with locking assemblies. According to the submarine cable dynamic anchoring device for submarine cable construction and the using method of the submarine cable dynamic anchoring device, the device can be dynamically adjusted according to the size and the mounting angle of a submarine cable, the mounting and using effects of the submarine cable can be improved on the basis, and meanwhile subsequent submarine cable taking-out for maintenance work is facilitated.
Owner:HENGTONG OCEAN ENG CO LTD
Handling cables in offshore installations
PendingUS20250260220A1Cable installations on groundCable installations on floatsMarine engineeringElectrical connection
A floating cable connection for an offshore structure such as a floating wind turbine comprises two or more substantially parallel elongate tubes each comprising an internal passageway for accommodating a respective cable. At least one buoyant element is fixed to the tubes and support formations fixed relative to the or each buoyant element are arranged to hold the tubes in an upright orientation on the offshore structure. The buoyant element comprises a hollow housing containing at least one electrical connector such as a junction box within a watertight internal compartment. The or each connector electrically connects upper ends of the cables to each other.
Owner:ACERGY FRANCE
Subsea pipe cable system
PendingCN119965769ACable installations on groundPipe laying and repairMechanical engineeringSubmarine
The submarine pipe cable system comprises a pipe cable, a plurality of first protection devices and a plurality of second protection devices, the pipe cable is suitable for being laid in the seabed, the first protection devices are suitable for being arranged in a seabed area with a first flow speed, the first protection devices are arranged on the pipe cable, and each first protection device comprises a plurality of first protection pieces and a plurality of second protection pieces, the first protection parts are special-shaped blocks and stacked on the pipe cable, the second protection parts are arranged on one sides of the first protection parts, the second protection devices are suitable for being arranged in a seabed area with a second flow speed, the second protection devices are all arranged on the pipe cable, and each second protection device comprises a plurality of third protection parts and a plurality of fourth protection parts. The third protection parts are made of flexible materials and evenly distributed on the pipe cable, and the fourth protection parts are special-shaped blocks and stacked on the two sides of the third protection parts. The erosion effect around the pipe cable can be effectively relieved, the construction difficulty and the material requirement are reduced, and meanwhile wide engineering applicability and high efficiency are achieved.
Owner:CHINA UNIV OF PETROLEUM (BEIJING)
Submarine pipeline with landslide impact prevention device
ActiveCN222479652Uextend your lifeimprove protectionCable installations on groundPipe laying and repairMechanical engineeringSubmarine pipeline
The utility model discloses a submarine pipeline with a landslide impact prevention device, which comprises a pipeline body, the pipeline body comprises at least two guide plates and an inner concrete layer, the adjacent guide plates are connected end to end to form an annular pipe body, and the inner concrete layer is arranged in the annular pipe body formed by the guide plates. A flexible piezoelectric plate is arranged on the outer surface of the flow guide plate, a plurality of back-flushing devices are symmetrically arranged in the annular pipe body in pairs, the outer ends of the back-flushing devices are fixed to the inner wall of the annular pipe body, the flexible piezoelectric plate is electrically connected with the back-flushing devices, when being impacted by the seabed, the flexible piezoelectric plate is pressed and deformed to generate electric energy, and the electric energy is transmitted to the back-flushing devices. And activating a working mechanism of the backflushing device, and pushing the flow guide plate to move outwards until the flow guide plate is completely opened. The device not only realizes recoil protection on the pipeline, but also converts impact energy into available electric energy, so that the energy utilization efficiency is improved.
Owner:WENZHOU UNIV
Integral jacking construction method and system for modularized electromechanical pipeline of large venue
The invention discloses an integral jacking construction method and system for a modular electromechanical pipeline of a large venue. The method comprises the following steps of S1, BIM modular design, S2, modular segmentation, S3, modular assembly and transportation, S4, integral jacking construction and S5, butt joint of a front module and a rear module. The system comprises a BIM (Building Information Modeling) design module, a modular segmentation measurement unit, modular assembly equipment, a special jacking equipment group and a forklift transportation assembly, according to the method, BIM modular design, modular segmentation and prefabricated assembly type production are combined, through jacking equipment and precision control technology innovation, high-place cross operation interference is avoided by means of overall jacking, and the construction time is shortened; bIM design optimization and jacking precision control are utilized, so that the quality problem is effectively reduced; the material utilization rate is improved through modularization and prefabrication, rework waste is reduced, and the labor cost and the material waste rate are effectively reduced; and in the aspect of construction safety, high-place operation is reduced through overall jacking, potential safety hazards are avoided, and comprehensive benefits of construction are effectively enhanced.
Owner:北京中铁建建筑科技有限公司 +1
Cover plate opening and closing device
ActiveCN119482139AOpen and closeIncrease the stress pointCable installations on groundLifting devicesStructural engineeringMechanical engineering
The invention provides a cover plate opening and closing device. The cover plate opening and closing device comprises at least two fixing shafts and a cover plate, wherein the fixing shafts can be connected with a cable trench; the at least two 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 respectively, the first ends of the jacking rods are provided with cover plate matching parts, and the connecting rods are hinged to the second ends of the at least two jacking rods respectively. When the jacking assembly is in the storage state, the cover plate matching part can upwards extend out of the cable trench, and when the jacking assembly is in the storage state, the cover plate matching part can be downwards stored in the cable trench; the mounting shaft can be connected with the cable trench, the middle of the handle part is hinged to the mounting shaft, the first end of the handle part extends out of the cable trench, and the second end of the handle part is in driving connection with the connecting rod. Through the technical scheme provided by the invention, the problems that the cable trench cover plate is difficult to open and close and the safety is relatively low when the weight of the cable trench cover plate is relatively heavy in the prior art can be solved.
Owner:GUANGDONG POWER GRID CO LTD +1
Current cable trench protection structure in soft soil area
ActiveCN223039606UArtificial islandsCable installations on groundPrefabricationGeotechnical engineering
The utility model relates to a current cable trench protection structure in a soft soil area. The current cable trench protection structure comprises a current cable trench, a self-stabilizing filling body, a cover plate, a cover plate base and a buffer layer, the self-stabilizing filling bodies are arranged on the two sides of the current cable trench. The cover plate base is fixedly arranged at the top of the inner side of the self-stabilizing filling body; the cover plate is detachably mounted on the cover plate base; gaps are reserved between the current cable trench and the self-stabilizing filling bodies on the two sides, and buffer layers are arranged. According to the utility model, the current cable trench cover plate is prevented from receiving vertical vehicle load; lateral soil pressure on the side wall of the cable trench is avoided, the work amount of earth excavation is reduced, and the manufacturing cost is saved; long-term settlement is reduced, and the method is more suitable for soft soil areas; the cover plate and the self-stabilizing filling bodies on the two sides are prevented from sliding in the transverse direction due to vehicle running; local fracture of concrete at the edge of the cover plate is avoided; and lifting after prefabrication and uncovering maintenance during use are facilitated.
Owner:WUHAN MUNICIPAL ENG DESIGN & RES INST
Posture control method and system for pipe jacking machine in municipal engineering construction
ActiveCN120650517ACable installations on groundPipe laying and repairAttitude controlControl engineering
The invention relates to the technical field of attitude control, in particular to a pipe jacking machine attitude control method and system for municipal engineering construction, and the method comprises the steps: obtaining various monitoring data of a pipe jacking machine; the monitoring time is divided into a plurality of monitoring time periods, and each monitoring time period is divided into a plurality of time periods according to the stage difference of the posture change of the pipe jacking machine in each monitoring time period; acquiring a change response characteristic value of the single monitoring data in the single time period according to discrete characteristics of the single monitoring data in the single time period and related characteristics and difference characteristics of the single monitoring data and other various monitoring data; and according to the total data quantity and the change response characteristic value of the single monitoring data in each time period of the single monitoring time period, acquiring a moving time window parameter of the single monitoring data in the single monitoring time period, and further controlling the monitoring data in the attitude control process of the pipe jacking machine. And the moving time window lengths of different time periods are adaptively optimized, so that the accuracy of pipe jacking attitude control is improved.
Owner:BEIJING XINBO HONGYE MUNICIPAL ENG CO LTD
High-strength aluminum alloy channel support
ActiveCN222940481UCable installations on groundCable installations in tunnelsRebarUltimate tensile strength
The utility model discloses a high-strength aluminum alloy channel support, which belongs to the technical field of cable mounting and supporting, and is characterized in that the high-strength aluminum alloy channel support comprises a stand column and a supporting arm, and two parallel first channel structures are arranged on one side, close to the supporting arm, of the stand column; the stand column is in an embedded mode, so that the defects that in the prior art, stand columns are welded after a building is made or fixed in a mode of punching expansion bolts are overcome, and the problems that in an existing stand column installation mode, the workload is large, the building needs to be damaged sometimes, reinforcing steel bars of the building are touched when expansion bolt holes are drilled, and installation is difficult are solved. And potential safety hazards exist when electric welding is used in a limited space. Due to the adoption of the pre-embedded type, the stand column can be welded with the reinforcing steel bars through the T-shaped steel nails, so that the stand column and a building are integrated, the strength is higher, the anti-corrosion protection is added, the stand column is pre-embedded in the building, the protection performance is fully protected, and the adjustability of the interlayer distance of the corbel is very high due to the adoption of the channel structure.
Owner:WUXI HAILITE TECH CO LTD