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32results about How to "Quick lap" patented technology
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Nursing bed
InactiveCN110292493AMeet daily needsAchieve conversionWheelchairs/patient conveyanceNursing bedsWheelchairEngineering
The invention relates to the technical field of nursing equipment, in particular to a nursing bed. The nursing bed comprises a bed frame part and a wheelchair part, wherein the bed frame part is provided with a gap, the wheelchair part and the bed frame part are detachably connected through the gap, and the top of the gap of the bed frame part is provided with a notch; a first bracket is mounted at the bottom of the notch, the bed frame part is provided with a movable plate which can rotate around the bed frame part, the movable plate is provided with a second bracket, and the first bracket and the second bracket are positioned on the same plane. The bed frame part and the wheelchair part realize quick lapping through a lifting system, the lapping mode is more convenient and flexible thana common splicing mode, and the operation requirement is not high. Through the free movement of the nursing bed and the lifting function of the wheelchair, the daily life demands of a user are met, the high intelligence and automation provide great convenience for the user, and the operability is high.
Owner:CHANGCHUN UNIV OF SCI & TECH
Bridge ladder system with compensation function and use method thereof
The invention relates to a bridge ladder system with a compensation function and a use method thereof, belongs to the technical field of marine ship operation and maintenance equipment. A bridge ladder and a base are arranged, the bridge ladder comprises a fixed slide and a sliding slide, the fixed slide and the sliding slide are connected in a sliding manner, the bridge ladder is hinged with the base, and the base is connected with a motion compensation platform through a swing mechanism. The bridge ladder system can realize compensation motion of three degrees of freedom of pitching, stretching and rotating through the control of a main control computer, so that the bridge ladder and a landing platform are always in a relatively stable motion state, and the rapid and safe transfer of personnel, goods and equipment is realized.
Power jointing clamp
ActiveCN109326900AIncrease frictionPlay an anti-shedding effectClamped/spring connectionsMultiple conductors connectorMetal frameworkEngineering
The invention provides a power jointing clamp, which comprises two insulating half clamp bodies hinged to each other, a metal framework fixedly disposed on the inner sides of the insulating half clampbodies, and a metal sleeve fixedly disposed on the rear side of the metal framework, wherein the insulating half clamp bodies comprise front clamp bodies integrally located on the front sides, middleconnecting parts, and rear clamping bodies on the rear sides; the connecting parts are movably hinged by a rotating shaft, and the front side of the metal framework is fixedly provided with a third metal sheet; first metal teeth are fixedly arranged on the inner side of the third metal sheet; the inner side of the metal framework is fixedly connected with a second metal sheet; the front side of the second metal sheet is fixedly provided with an arc-shaped metal sheet; the convex surface of the arc-shaped metal sheet is inward; second metal teeth are fixedly arranged on the arc-shaped metal sheet; and a spring is arranged between the first metal sheet and the second metal sheet. The power jointing clamp has the characteristics of simplicity and practicability and can quickly lap two cables.
Owner:STATE GRID CORP OF CHINA +2
Motorized highway tunnel inverted arch construction trestle car
The invention discloses a motorized highway tunnel inverted arch construction trestle car which comprises an invert bridge, a guiding unit and a driving unit. The guiding unit comprises two front wheels, a first supporting rod, first gears, a second gear, a chain and a handle. Each front wheel is connected with one end of the first supporting rod. Rotation in the circumferential direction of the front wheels can be generated between the front wheels and the first supporting rod. The driving unit comprises two rear wheels, a spindle, a second supporting rod, a third gear, a transmission belt, a sleeve and an engine. The rear wheels are installed at the two ends of the spindle. Each rear wheel is connected with one end of the second supporting rod. According to the motorized highway tunnel inverted arch construction trestle car, through the combined action of the guiding unit, the driving unit, an automatic hydraulic lifting supporting rod and other devices, operation procedures are simplified in the highway tunnel inverted arch construction process, the paving time and the removing time are shortened, one-man operation is achieved, a traveling plane which is stable enough can be provided, and meanwhile, safety is ensured.
Owner:CHANGAN UNIV
Environmentally-friendly roadblock convenient to move
InactiveCN107675644AEasy to moveQuick stitchingTraffic signalsRoad signsCost of transportTraffic accident
Owner:绵阳头坝科技有限公司
Marine embarkation trestle device with wave compensation function
ActiveCN113386908AReasonable designEasy to snapCargo handling apparatusPassenger handling apparatusMarine engineeringLap joint
The invention discloses a marine embarkation trestle device with a wave compensation function. Themarine embarkation trestle device comprises a compensation base, an embarkation trestle and a lap joint mechanism, the embarkation trestle is connected with a bow through the compensation base, the embarkation trestle is connected with a pile through the lap joint mechanism, and the lap joint mechanism comprises a fixing part and a hook head part. The fixing part is arranged on the embarkation trestle, the hook head part is hinged to the fixing part, the tail end of the hook head part and the fixing part jointly define a jaw for containing a pile, and the outer arc line, making contact with the pile, of the hook head part is a section of involute so that the pile can be clamped into the jaw from the outer side of the jaw in a clamped mode conveniently. The inner arc line, making contact with the pile, of the hook head part is a section of involute so that the pile in the jaw can be prevented from being disengaged. The structure design is exquisite, lap joint is convenient, the production and manufacturing cost is low, the compensation performance is excellent, and application and popularization are facilitated.
Owner:天时海洋工程及石油装备研究院(青岛)有限公司
Microstrip film isolator test fixture
PendingCN111624365ASimple structureTested and reliableElectrical testingMeasurement instrument housingBatch productionRF connector
The invention discloses a microstrip film isolator test fixture, which comprises a test platform and an objective table for placing the microstrip film isolator. The objective table is installed on the test platform through an elastic support mechanism. The test platform is provided with a radio frequency connector which is connected with the signal input end and the signal output end of the microstrip film isolator on the objective table. One end of the radio frequency connector is provided with a needle type connecting end head contacted with the signal input end or the signal output end ofthe microstrip film isolator, and the other end of the radio frequency connector is provided with an adapter connected with an external test device. The test fixture is simple in structure and reliable in testing, can achieve the precise testing of the microstrip film isolator, is wide in testing coverage frequency range, is high in testing precision, does not damage a to-be-tested device, and canimprove the testing efficiency and testing precision of the device in a batch production process.
Owner:CASIC DEFENSE TECH RES & TEST CENT
Piercing clamps for ground potential live working of insulated conductors
ActiveCN104795771BSolve the difficulty of peelingReduce labor intensityApparatus for joining/termination cablesUltimate tensile strengthGuide wires
A puncture clamp for the ground potential live working of insulated wire line connection comprises an upper clamp unit and a lower clamp unit matching with the upper clamp unit. The positive surface of the upper clamp unit is provided with a main wire clamping groove with a downward opening, the main wire clamping groove is provided with upper puncture teeth inside, the lower clamp unit is provided with a guide wire limiting groove corresponding to the main wire clamping groove, and the guide wire limiting groove is provided with lower puncture teeth inside; a main wire is tightened through puncture of the upper clamp unit and lower clamp unit, and an auxiliary wire is tightened through a conventional press plate. The conduction is implemented and fine tightness property of insulted guide wire for insulation is guaranteed through puncture, safe and rapid ground potential live working for branch line connection is implemented, the problem of difficulty in insulated guide wire peeling is solved, the work intensity for operation is reduced, an outdated mode that peeling is necessary for operation for a long term is solved, the operating efficiency is improved by 50%, and the problems of water proofing and tightness caused by insulated guide wire peeling are solved.
Owner:国网江苏省电力有限公司东海县供电分公司
Leg fixing clamp for orthopedic surgery
The invention provides a leg fixing clamp for an orthopedic surgery, and relates to the field of medical instruments. The leg fixing clamp for the orthopedic surgery comprises left side frames, an endgroove is formed in the upper side of each left side frame, a connecting rod is fixedly connected to the inner side of each end groove, connecting holes penetrate through the lower sides of the leftside frames, screw rods are movably connected to the interiors of the connecting holes, a ball head is fixedly connected to the left side end of each screw rod, the ball heads are clamped into the connecting holes, a clamping plate is in threaded connection with the outer surface of each screw rod, an air bag is arranged on the upper surface of each clamping plate, and the end, which is away fromthe left side frame at a left side, of each screw rod penetrates through a corresponding connecting hole of the left side frame at a right side and is fixedly connected with the connecting hole through a nut. Through the simple two-half structure, the fixing speed of the leg of a patient can be increased, the leg fixing clamp can adapt to various leg conditions, the overall air permeability is good, a doctor can observe the recovery state through a gap, the treatment scheme can be changed immediately, disassembling is facilitated, and the leg fixing clamp is more friendly to the patient.
Owner:孙延辉
Portable outdoor optical cable connection special-purpose cover
InactiveCN104965270AAffect qualityCause harmOptical fibre/cable installationFibre mechanical structuresEngineeringMechanical engineering
The invention discloses a portable outdoor optical cable connection special-purpose cover which comprises a frame body and a cover body. The frame body is formed by mutual insertion of cross beams, support legs and connection pieces. The cross beams and the connection pieces are connected to form a triangle or quadrangle frame top; the support legs are inserted to the bottom portions of the connection pieces; the cover body and the frame body are in sleeve connection; and the cover body is provided with an openable cover mouth. The special-purpose cover is mainly used for connection of power optical cable outdoor construction optical cables; the frame body can be put up locally by utilizing the cross beams, the support legs and the connection pieces; the cover body is in sleeve connection with the frame body, and thus a temporary operation room can be constructed. Operation personnel carry out cable connection in the cover body without being influenced by weather; and even if the operation personnel carry out the operation for a long time, harm does not be done to the health of the operation personnel, or optical cable connection quality is not influenced. The cover body can be made of a soft body, transparent or semitransparent materials so as to adapt to different weathers. The cross beams and the support legs are inserted to the connection pieces, so that the special-purpose cover can be assembled and disassembled quickly, and the special-purpose cover is portable and convenient to use.
Owner:STATE GRID SHANDONG CHANGLE POWER SUPPLY +1
Tower-mounted wrapping tape dragging-wrapping machine with self-adaptive tension adjustment
PendingCN111498557AIncrease the lengthReduce the frequency of changing the wrapping tapeCable/conductor manufactureWebs handlingSelf adaptiveMagnetic powder
The invention discloses a tower-mounted wrapping tape dragging-wrapping machine with self-adaptive tension adjustment. The machine comprises a rack; and two rotating shafts and a magnetic powder brakeare arranged on the rack, wherein the two rotating shafts are connected via a synchronous belt in a transmission mode and the magnetic powder brake is connected with the synchronous belt in a transmission mode. Tower-mounted winding wrapping tape is installed on the rotating shafts; a cable to be wrapped is rotatably arranged on the rack; and the other end of the winding wrapping tape is wound onthe cable to be wrapped. A tension rectification device and a tension controller are further arranged on the rack; the tension rectification device is against the winding wrapping tape; a signal input end of the tension controller is connected with the tension rectification device via a signal; and a signal output end of the tension controller is connected with the magnetic powder brake via a signal. The tower-mounted tape wrapping dragging-wrapping machine with self-adaptive tension adjustment has the beneficial effects that, the winding wrapping tape adopts a tower-mounted mode, so the length of one-time supply of the winding wrapping tape is greatly improved and the replacing frequency of the winding wrapping tape is reduced; and two rolls of tower-mounted winding wrapping tape can beinstalled at one time, working efficiency is improved, and real-time monitoring and adjustment of the tension of the winding wrapping tape can be realized.
Owner:SHENZHEN LILUTONG TECH IND
Innovative overlap experimental device of spatial multi-rod mechanism and application method
Owner:JIAXING UNIV
Rescue and withdrawal device for underground excavation and mining equipment and its use method
ActiveCN111927530BSimple structureNo maintenanceMining devicesSafety equipmentsArchitectural engineeringRock bolt
A rescue and retraction device for underground excavation and mining equipment and its use method, which belong to the field of coal mine excavation and mining technology, can solve the problem of low rescue efficiency in existing coal mine excavation and mining working faces, high risk of roof falling twice, and high labor intensity of rescuers. Issues with major safety hazards, including the traction and withdrawal device, the two-arm bolt scraper and the traction chain, the two-arm bolt scraper transports the traction and withdrawal device to the rescue site, and performs necessary support and cleaning of the roof collapse area , connected with the traction retraction device controller and providing a power source, the traction retraction device is connected with the rescued equipment, and pulls the buried equipment away from the roof fall area. The present invention can timely rescue the buried equipment and avoid the risk of secondary roof fall, and The personnel working area is always in the safe area provided by the rescue system, which improves safety and reduces labor intensity. The rescue system can also be used as an auxiliary driving equipment when large-slope excavation equipment is in a nest, so as to improve the adaptability of the equipment.
Owner:TAIYUAN INST OF CHINA COAL TECH & ENG GROUP +1
An electric integrated operating device for j-shaped wire clamps
ActiveCN110635265BQuick lapQuick unlock actionCoupling device engaging/disengagingCoupling device detailsElectrical and Electronics engineeringBody frame
Owner:国网浙江省电力有限公司桐乡市供电公司
A power connector
ActiveCN109326900BAchieve the effect of elastic clampingTo achieve the purpose of insulationClamped/spring connectionsMultiple conductors connectorMetal frameworkEngineering
Owner:STATE GRID CORP OF CHINA +2
Rescue withdrawing device for underground excavation equipment and use method of rescue withdrawing device
ActiveCN111927530ARetracement smoothGreat towing force for rescueMining devicesSafety equipmentsArchitectural engineeringRock bolt
The invention relates to a rescue withdrawing device for underground excavation equipment and a use method of the rescue withdrawing device, belongs to the technical field of coal mine excavation, andcan solve the problems of the low rescue efficiency of an existing coal mine underground excavation working surface, the high risk of secondary roof caving, the high labor intensity of rescue workersand the high potential safety hazard. The rescue withdrawing device comprises a traction withdrawing device, a two-arm anchor rod scraper and a traction chain, wherein the two-arm anchor rod scrapercarries the traction withdrawing device to a rescue site, conducts necessary supporting and cleaning on a roof caving area, is connected with a traction withdrawing device controller, and provides a power source, and the traction withdrawing device is connected with rescued equipment and pulls the buried equipment to evacuate from the roof caving area. According to the device, the buried equipmentcan be rescued in time, the secondary roof caving risk is avoided, a personnel operation area is always located in a safety area provided by a rescue system, the safety is improved, meanwhile, the labor intensity is relieved, the rescue system can also be used for auxiliary driving equipment when large-gradient tunneling equipment is stopped, and the adaptability of the equipment is improved.
Owner:TAIYUAN INST OF CHINA COAL TECH & ENG GROUP +1
Connecting device for bridging motorboat and belt type pontoon bridge
PendingCN113463519AImprove work efficiency and use safetyImprove the safety of useBridge erection/assemblyFloating bridgesLap jointEngineering
The invention discloses a connecting device for a bridging motorboat and a belt type pontoon bridge. The connecting device comprises pushing frames, side connecting frames and connecting rods, the two pushing frames are respectively fixed at the two transverse sides of the head of the bridging motorboat, the two side connecting frames are respectively fixed at the two transverse sides of the tail of the bridging motorboat, and more than two connecting rods are arranged in the side edge of the belt type pontoon bridge; during transportation, the pushing frames and the side connecting frames can be folded on a deck of the bridging motorboat, and during use, the pushing frames and the side connecting frames can be overturned to the outer side of the bridging motorboat, so that the pushing frames and the side connecting frames are in lap joint and locked with corresponding connecting rods in the side edge of the belt type pontoon bridge; the two pushing frames are respectively connected with the corresponding connecting rods, so that the bridging motorboat and the belt type pontoon bridge are in a pushing state; and one pushing frame and one side connecting frame are respectively connected with the corresponding connecting rods, so that the bridging motorboat and the belt type pontoon bridge are in side belt connection.
Owner:CHINA HARZONE IND CORP
Film, waterproof roll and lap joint method
PendingCN113621321AQuick lapReduce dosageRoof covering using flexible materialsFilm/foil adhesivesAdhesiveAsphalt mastic
The invention discloses a film, a waterproof coiled material and a lap joint method. The film comprises a first plane material, a PVDF film and a second plane material which are bonded in sequence. The waterproof coiled material comprises the film and a modified asphalt adhesive layer bonded on the second plane material. The lap joint method comprises the steps that the first plane material and the modified asphalt adhesive layer are sequentially lapped together, wherein the waterproof coiled material comprises the first plane material, a first composite adhesive layer, the PVDF film, a second composite adhesive layer, the second plane material and the modified asphalt adhesive layer which are sequentially arranged from the surface layer to the bottom layer. The film is provided with three layers, so that a certain lap joint foundation can be provided for the waterproof coiled material. According to the waterproof coiled material, the first plane material in the waterproof coiled material is bonded with the modified asphalt adhesive layer, so that quick lap joint of different waterproof coiled materials can be realized in the construction process. The waterproof service life can reach 25 years, the risk of waterproof leakage repairing can be reduced along with the increase of the service life, the waterproof quality of a building is improved, and the use amount of the modified asphalt mastic is reduced.
Owner:湖南优珀斯新材料科技有限公司
A cable bonding device
The invention discloses a cable lap joint fitting. The structure of the cable lap joint fitting comprises a first cable, a seal ring, an upper cable locking sleeve, an upper conductor connecting sleeve, a threaded groove, a locking screw ring, a lower conductor connecting sleeve, a lower cable locking sleeve and a second cable. The cable lap joint fitting is composed of the seal ring, the upper cable locking sleeve, the upper conductor connecting sleeve, the lower conductor connecting sleeve and the lower cable locking sleeve, can complete lap joint operation of the first cable and the secondcable through simple operation and locking to integrate the first cable and the second cable to a whole, and has complete moisture-proof and insulation properties to solve the problems that the manuallap joint of the cables needs multiple steps, is relatively complex in operation and requires operators with a certain experience to complete the lap joint of the cables to cause waste of a lot of time at the aspect of lap joint of the cables, prolong the cable construction engineering progress and improve the cost.
Owner:上海闸电东海电力工程有限公司
Steel bar truss machining system for manufacturing steel-concrete structure assembly type prefabricated wall body
The invention relates to a steel bar truss machining system for manufacturing steel-concrete structure assembly type prefabricated wall body. The steel bar truss machining system comprises a rack, anupper support positioning mechanism, an intermittent conveying mechanism, a lower support positioning mechanism and a front blocking and positioning assembly; the upper support positioning mechanism comprises a lifting fine adjustment table arranged on a main support table and a row of upper support wheels distributed above the main support table; and the lower support positioning mechanism comprises two adjusting positioning air cylinders, a lower support plate, an auxiliary positioning plate and a lateral pressing assembly. According to the steel bar truss machining system, rapid auxiliary positioning can be conducted on a steel bar truss structure of the prefabricated wall, the problem that accurate lap joint forming is not easy in the actual welding process is solved, the effectivenessof lap joint contact of the steel bar truss structure is guaranteed, pseudo soldering points can be effectively prevented from being formed, the welding efficiency is improved, and meanwhile the welding quality of the steel bar truss structure is guaranteed.
Owner:合肥集知网信息技术有限公司
A mobile road tunnel inverted arch construction trestle vehicle
The invention discloses a motorized highway tunnel inverted arch construction trestle car which comprises an invert bridge, a guiding unit and a driving unit. The guiding unit comprises two front wheels, a first supporting rod, first gears, a second gear, a chain and a handle. Each front wheel is connected with one end of the first supporting rod. Rotation in the circumferential direction of the front wheels can be generated between the front wheels and the first supporting rod. The driving unit comprises two rear wheels, a spindle, a second supporting rod, a third gear, a transmission belt, a sleeve and an engine. The rear wheels are installed at the two ends of the spindle. Each rear wheel is connected with one end of the second supporting rod. According to the motorized highway tunnel inverted arch construction trestle car, through the combined action of the guiding unit, the driving unit, an automatic hydraulic lifting supporting rod and other devices, operation procedures are simplified in the highway tunnel inverted arch construction process, the paving time and the removing time are shortened, one-man operation is achieved, a traveling plane which is stable enough can be provided, and meanwhile, safety is ensured.
Owner:CHANGAN UNIV
Innovative lap joint experiment device and application method of spatial multi-bar mechanism
Owner:JIAXING UNIV
A ship boarding trestle device with wave compensation function
ActiveCN113386908BReasonable designEasy to snapCargo handling apparatusPassenger handling apparatusMarine engineeringInvolute
Owner:天时海洋工程及石油装备研究院(青岛)有限公司
Assembly integral type subway station structure formed by lap joint of annular reinforcing steel bars
PendingCN114809086AImprove efficiencyReduce workersArtificial islandsProtective foundationRebarLap joint
The assembled integral subway station structure comprises a cast-in-place bottom plate, prefabricated side walls are symmetrically arranged on the left side and the right side of the cast-in-place bottom plate, and prefabricated double-layer integrated middle columns are arranged on the front side and the rear side of the top of the cast-in-place bottom plate correspondingly; a superimposed top longitudinal beam is arranged between the tops of the two prefabricated double-layer integrated middle columns, and a prefabricated middle longitudinal beam is arranged between the middles of the two prefabricated double-layer integrated middle columns. According to the assembled integral subway station structure with the annular reinforcing steel bars in lap joint, the prefabricated slabs are in lap joint rapidly through the reinforcing steel bar connectors and the reinforcing steel bar buckles, the lap joint length of the reinforcing steel bars is reduced, efficiency is high, mold-free and support-free effects are achieved, the number of field operation workers is reduced, component production factorization and installation mechanization are achieved, civilized construction and environmental protection are facilitated, and the construction period is shortened. The structure integrity is good, construction is convenient, the engineering quality is improved, the construction period is shortened, green development of rail transit is assisted, and green intelligent construction is achieved.
Owner:青岛中科坤泰装配建筑科技有限公司
A quick-connect high-voltage switchgear
ActiveCN110380281BFor quick replacementAvoid prolonged power outagesEngagement/disengagement of coupling partsCoupling device engaging/disengagingBusbarHemt circuits
Owner:SHANDONG GUANGYUN INTELLIGENT TECH CO LTD
Assembled house
The invention discloses an assembled house. The assembled house comprises middle bases, side bases, a plurality of wall plates, door plates and a top cover assembly, wherein the middle bases, side bases, the wall plates, the door plates and the top cover assembly are all made of plastic materials, upper extending plates and lower extending plates are formed on two opposite sides of the middle bases, the other two opposite sides of the middle bases extend to form wall supporting plates, a lower extending supporting plate is formed on one side of each side bases, lower extending fixing plates are formed on the other three sides of each side base, every two adjacent middle bases are connected and fixed in the mode that the upper extending plate of one middle base is locked to the lower extending plate of the other middle base in a lap joint mode, the upper extending plate of one middle base of the two middle bases located on the edge is locked to the lower extending supporting plate of the adjacent side base in a lap joint mode, and the lower extension plate of the other middle base of the two middle bases on the edge is overlapped and locked with the lower extension supporting plate of the adjacent side base to form a base connecting plate.
Owner:XIAMEN TOPPLA MATERIAL TECH CO LTD
Rapid lap joint track suitable for geological disaster control engineering rugged topography
InactiveCN114318966ANot easy to cause lossImprove structural integrityMovable tracksTrackwayArchitectural engineering
The invention relates to the technical field of quick lap-joint rails, and provides a quick lap-joint rail suitable for geological disaster control engineering rugged topography, which is better in structural integrity, better in use integrity, higher in mounting and erecting construction efficiency, better in rail protection effect in the transportation process, and more convenient to connect a plurality of rails. Comprising a plurality of telescopic supporting legs and further comprises a rail frame system and a plurality of folding truss systems, the rail frame system comprises two pillow frames, the pillow frames are connected with rails, each pillow frame is provided with an inner fixing system and an outer fixing system, the rails are connected with a double-end connecting plate, and the double-end connecting plate is connected with a plurality of connecting bolts. The folding truss comprises a center connecting frame and two side connecting frames, the side connecting frames are connected with the pillow frame, the side connecting frames are connected with inner transverse pillows and outer transverse pillows, the inner transverse pillows are connected with the center connecting frame, the multiple telescopic supporting legs are connected with the outer transverse pillows and the center connecting frame respectively, and the outer transverse pillows are connected with outer connecting strips. And clamping sleeves are connected to the outer connecting strips and the central connecting frame.
Owner:吴伟伟
Raft plate steel bar support device
ActiveCN113006116AQuick lapImprove stabilityFoundation engineeringBuilding reinforcementsMesh reinforcementEngineering
The invention provides a raft plate steel bar support device. The raft plate steel bar support device comprises an upper steel bar net, a lower steel bar net, a supporting mechanism, a fixing mechanism and a connecting mechanism; the supporting mechanism is installed between the upper steel bar net and the lower steel bar net and comprises fixing sleeves, supporting rods, balls, connecting rods and clamping grooves; the side walls of the supporting rods abut against the side wall of the upper steel bar net and the side wall of the lower steel bar net; the multiple fixing sleeves are connected into the supporting rods in a sliding manner; one end of each fixing sleeve rolls and is clamped to the corresponding ball; one end of each ball is fixedly connected with the corresponding connecting rod with the L-shaped side wall; the clamping grooves are formed in the side walls of the connecting rods, and the connecting rods abut against the side wall of the upper steel bar net and the side wall of the lower steel bar net; and the fixing mechanism is clamped to the lower steel bar net and abuts against the side walls of the supporting rods. The raft plate steel bar support device has the beneficial effects of being convenient to install and high in stability.
Owner:浙江宝盛建设集团有限公司
Geopolymer-containing cement paste-based grouting material suitable for high-ground-temperature environment and preparation method thereof
The invention discloses a geopolymer-containing cement paste-based grouting material suitable for a high ground temperature environment. The geopolymer-containing cement paste-based grouting material is prepared from the following raw materials in parts by weight: 100 parts of a solid material, 0.12 part of sodium hydroxide and water, wherein the weight part of the water is as follows: the water-cement ratio is 1: 1, and the ash is the weight part of the solid material; the water-cement ratio represents the ratio of the parts by weight of water to the parts by weight of ash. The grouting material is prepared from conventional Portland cement under the condition that no additive is added, is suitable for a high-ground-temperature environment, achieves the purposes of reducing ecological damage and environmental pollution, and can meet the requirements of wide raw material sources and cost reduction.
Owner:CHINA RAILWAY TUNNEL GROUP CO LTD +1
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