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40results about How to "Play a water blocking role" patented technology
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Building brickwork and masonry construction method of building brickwork
InactiveCN104358341AMeet the requirements of self-insulation systemSolve common quality problemsConstruction materialWallsMaterials scienceConcrete composites
The invention discloses a building brickwork and a masonry construction method of the building brickwork, and relates to a building brickwork of a building. The building brickwork is a brickwork which is built by light-weight aggregate concrete composite blocks; grooves and tongues are formed in the periphery of each light-weight aggregate concrete composite block; the light-weight aggregate concrete composite blocks are respectively 600-1200mm in length, 300-600mm in height and 80-200mm in thickness; the grooves are downward and the tongues are upward in field masonry; and the masonry construction method comprises the following steps: (1) building the brickwork by the blocks, namely building the first block on a foundation or floor ground, building the second composite block in a manner of being staggered with the first block, wherein the staggered-joint is 1 / 2 of the length of the block and is not smaller than 200mm at least; the composite block brickwork is connected with a building structure column and a concrete shear wall; the composite block brickwork is connected with building structure beams and plates; the building brickwork is subjected to deformation joint construction; a parapet wall is subjected to masonry construction; a switch socket is pre-buried and installed; and cable pipelines are laid; (2) fixing door frames and window frames; and (3) building a wall body corner structure by the light-weight aggregate concrete composite blocks.
Owner:FUJIAN MEIJINLAI GREEN BUILDING TECH +1
Connecting flange valve for water collecting pipe and concealed draining pipe
InactiveCN106321871AEasy to openEasy to getOperating means/releasing devices for valvesSlide valveFriction reductionEngineering
The invention discloses a connecting flange valve for a water collecting pipe and a concealed draining pipe in the technical field of valves. The connecting flange valve comprises a valve seat. A groove is formed in the bottom of an inner cavity of the valve seat. A rubber gasket is arranged on the inner wall of the groove. Flange plates are arranged on the left wall and the right wall of the valve seat correspondingly. A sliding groove is formed in the middle of the top of the valve seat and communicates with the inner cavity of the valve seat. According to the connecting flange valve for the water collecting pipe and the concealed draining pipe, the groove is formed in the bottom of the inner cavity of the valve seat, and the rubber gasket is arranged on the inner wall of the groove, so that the leakproofness during baffle closing is improved, and a water blocking effect is effectively achieved; due to the fact that a sliding cavity with the size the same as that of the sliding groove is formed in the bottom of a valve deck, due to the sliding cavity, a baffle can conveniently enter the sliding cavity when opened, and the inner cavity of the valve seat can be completely opened; and an oil hole is formed in the top of the valve deck, the right end of the oil hole communicates with the sliding cavity, lubricating oil can be injected from the oil hole when friction between the baffle and the sliding groove is relatively large, and therefore friction is reduced.
Owner:SHANDONG SUNWAY LANDSCAPE TECH
Optical cable for rail transit
InactiveCN104330863ACommunication performance is not affectedHigh tensile strengthFibre mechanical structuresFiberYarn
The invention discloses an optical cable for rail transit, belonging to the technical field of optical cables. An optical fiber is straightly placed in a loose sleeve, and fiber paste is filled between the loose sleeve and the optical fiber to combine an optical fiber core. The cross section of a framework is of a cross-shaped structure, the cross-shaped structure of the framework is used for partitioning the periphery of the framework into four spaces, the framework is made of compound carbon fiber, one to three optical fiber cores are respectively arranged in each space around the framework, a water-blocking wire and cable paste are filled between the optical fiber cores and in a gap between the optical fiber cores and the framework, and are wound and coated by using a bundling yarn to form an optical cable core which is then sequentially coated with an aluminum-plastic composite belt layer and an outer sheath to form the optical cable for the rail transit. According to the optical cable, by using the framework made of the carbon fiber, the tension strength of the optical cable and the space in the framework are ensured, the self weight of the optical cable is reduced, so that the performance of the optical fiber in the loose sleeve is not influenced, and thus the optical cable is conveniently laid and installed; the defect that a thunder is easily introduced into a room by a metal reinforcer optical cable is eliminated, and the optical cable is suitable for a communication system of the rail transit.
Owner:BEIJING HENGTONG SIBO COMM TECH CO LTD
Deep sea cable
ActiveCN104318991AHigh strengthImprove adhesionSubmarine cablesInsulated conductorsPower cableElectromagnetic interference
The invention discloses a deep sea cable. A filling layer is covered with a wrapping tape layer, the center of the filling layer is filled with a reinforcing inner core, three power cables are evenly distributed on the outer ring of the reinforcing inner core, the wrapping tape layer is covered with a metal shielding layer in an adhesion mode, the metal shielding layer is covered with an inner coating, the inner coating is covered with an armor layer, the gap between the inner coating and the armor layer is filled with a water-resisting factice layer, the armor layer is sleeved with an outer coating, and an external fixing concave groove is formed in the outer coating. According to the deep sea cable, the water-resisting factice layer and the filling layer achieve the effects of two water-resisting tapes from outside to inside, the metal shielding layer achieves the electromagnetic interference preventing effect, the filling layer and the reinforcing inner core both achieve the effect of reinforcing the strength of the cable, a balance weight can be installed in the external fixing convex groove in the outer coating, the adhesive force of the cable to the sea bed can be enhanced, and the influences of sea bed ocean currents on fixation of the cable are well avoided.
Owner:江西吉恩海缆有限公司
Choke feeding screw conveyor
The invention discloses a choke feeding screw conveyor which comprises a cylindrical housing, wherein a feed port and a discharge port are formed on the cylindrical housing, an electric motor is arranged at the end of the feed port of the cylindrical housing, a shaft helical blade and a shaftless helical blade are arranged in the cylindrical housing, the electric motor is in power connection withthe shaft helical blade, the shaft helical blade is connected with the shaftless helical blade, and a sealing water return port is arranged at the back part of the discharge port of the cylindrical housing; due to the adoption of the shaft helical blade, the choke feeding screw conveyor can ensure that materials and water can be pushed forwards, further prevent backflow of the water, and play a water-blocking role; due to the adoption of the shaftless helical blade, the choke feeding screw conveyor can ensure that a sealing water body can not completely enter into a closed tank body; and an inner cavity of the housing at the starting end of the shaftless helical blade is water-sealed, thereby realizing sealing between a feeding machine and the closed tank body, preventing overflow of gas in the tank, having good choke effect and higher conveying speed and further having compact structure.
Owner:刘振亮
Dynamic submarine cable assembly for deep water
PendingCN110610774APlay a water blocking roleSolve growthClimate change adaptationSubmarine cablesInternal pressureMarine engineering
The invention discloses a dynamic submarine cable assembly for deep water. The dynamic submarine cable assembly comprises a dynamic submarine cable body. The dynamic submarine cable body comprises a cable core. The cable core is coated with an inner sheath. The inner sheath is coated with a steel wire armor layer. The steel wire armor layer is coated with an outer sheath. The dynamic submarine cable assembly is characterized in that the space between the inner sheath and the outer sheath is filled with insulating oil, the insulating oil fills the gaps of the steel wire armor layer, and the dynamic submarine cable body is equipped with a pressure balancing device used for balancing the internal pressure and the external pressure of the dynamic submarine cable body. The dynamic submarine cable assembly for deep water has the advantage that the dynamic submarine cable has better water blocking performance and longer service life because the space between the inner sheath and the outer sheath is filled with the insulating oil and the pressure balancing device is arranged on the dynamic submarine cable body.
Owner:宁波东方电缆股份有限公司
Anticorrosion and damp-proof cable used in mine
InactiveCN104900335ASimple structureReduce manufacturing costPower cables with screens/conductive layersInsulated cablesPower cableEngineering
The present invention discloses an anticorrosion and damp-proof cable used in mines. The anticorrosion and damp-proof cable comprises a graphite coating, a compression resistance layer, an anti-corrosion coating, a waterproof glue layer, a water-blocking cable paste layer, PE cushion layers, metal central reinforcing members, a filler layer, an aluminum-plastics compound waterproof layer and power cables, wherein the filler layer is wrapped by the aluminum-plastics compound waterproof layer, the PE cushion layers are filled in the center of the filler layer, the metal central reinforcing members are arranged inside the PE cushion layers, the power cables are arranged in a circumferential manner outside the metal central reinforcing members, the aluminum-plastics compound waterproof layer is wrapped by the water-blocking cable paste layer, the water-blocking cable paste layer is wrapped by the polyethylene waterproof glue layer, the waterproof glue layer is wrapped by the anti-corrosion coating, the anti-corrosion coating is wrapped by the compression resistance layer, and the compression resistance layer is wrapped by the graphite coating. The anticorrosion and damp-proof cable used in mines is simple in structure, low in production cost, long in service life, and excellent in physical performance and anticorrosion and damp-proof performance, and the problem of application of cables in the mines is solved.
Owner:王艳娣
Fully-biodegradable mulching film for tobacco and preparation method thereof
PendingCN111303594AControl effective timeGood extensibilityClimate change adaptationPlant protective coveringsPolymer scienceUltraviolet lights
The invention discloses a fully-biodegradable mulching film for tobacco and a preparation method thereof. The mulching film comprises the following raw materials in parts by weight: 100-120 parts of poly(butylene adipate-co-terephthalate), 10 to 30 parts of polylactic acid, 0.1 to 3 parts of calcium carbonate, 0.1 to 2 parts of talcum powder, 1-5 parts of a compatilizer, 0.01 to 0.5 part of a slipping agent, 0.1 to 1 part of an anti-blocking agent, 0.01 to 1 part of an antioxidant, 0.01 to 0.5 part of an ultraviolet light absorber, 0.01 to 0.5 part of an anti-aging agent, and 0.1 to 1 part ofan anti-hydrolysis agent. The preparation method of the mulching film comprises the following steps: drying poly(butylene adipate-co-terephthalate) and polylactic acid, and adding the dried poly(butylene adipate-co-terephthalate) and polylactic acid into a stirrer for stirring; sequentially adding other raw materials while stirring, and putting the uniformly mixed materials into a feeding hole ofan extruder; cooling an extruded material, carrying out granulating, and drying the granulated material to obtain a modified material; and adding the modified material into a blow molding machine, andsuccessively carrying out molding, cooling and winding to finish the production of the mulching film. The mulching film meets the requirement of tobacco growth cycle in plateau areas, is completely degraded after being used, protects the environment and increases the yield and income.
Owner:GUIZHOU TIANXING PLASTIC PRODS
Multicore bundling self-supporting optical fiber cable and manufacturing method thereof
PendingCN108152902AGuaranteed tensile propertiesImprove bending performanceFibre mechanical structuresLow smoke zero halogenEngineering
The invention discloses a multicore bundling self-supporting optical fiber cable and a manufacturing method thereof, the multicore bundling self-supporting optical fiber cable structurally comprises asuspension wire part and an optical fiber cable part which are connected through a sling; the optical fiber cable part is formed through extruding and wrapping of a low smoke zero halogen flame-retardant jacket by a cable core and two tearing ropes. According to the optical fiber cable, a plurality of loose tubes are used for accommodating a plurality of optical fibers respectively, the loose tubes perform parallel wiring directly in the jacket process, the cabling process is saved, the production work flow is simplified, the production efficiency is improved, and the plurality of core loosetubes can be laid in a branching manner simultaneously.
Owner:SHANDONG PACIF OPTICS FIBER & CABLE CO LTD
OLED display panel and display device
ActiveCN110854289AImprove packaging effectPlay a water blocking roleSolid-state devicesSemiconductor/solid-state device manufacturingDisplay deviceEngineering
The invention provides an OLED display panel and a display device. A test area of the OLED display panel comprises a substrate, an inorganic film layer, a planarization layer, a pixel definition layerand a packaging layer which are laminated, wherein the planarization layer is provided with a through hole at a pixel opening position corresponding to the pixel definition layer, and the packaging layer is deposited in the pixel opening and the through hole; and the planarization layer is separated from each other to form a new water blocking area and the packaging effect is enhanced.
Owner:SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
Sealing structure and sealing method of plastic template
InactiveCN108798000AReduce water lossGood applicabilityForming/stuttering elementsHydro energy generationSlurry flowEngineering
The invention provides a sealing structure and a sealing method of a plastic template. According to the sealing structure of the plastic template, a plurality of U-shaped grooves with a certain lengthare formed in the side edge, close to a panel, of a frame of the plastic template, and a plurality of short U-shaped grooves are formed on the side edge, corresponding to the discontinuous positionsbetween the adjacent two long U-shaped grooves, of the frame; so that after plastic templates are assembled and butted, the long U-shaped grooves on the side edges of frames of the adjacent two plastic templates are fitted up correspondingly to form a sealing cavity, and meanwhile the short U-shaped grooves are also fitted up correspondingly to form another sealing cavity. When concrete is pouredlater, water flows into the sealing cavities from a template gap under own pressure of the concrete and a vibrating action, the water filling the sealing cavities forms a weir plug effect, and thus the water flowing out of the template gap at a high speed is slowed down and delayed, and the speed of water loss is reduced. Floating slurry flowing into the sealing cavities can also play a role in blocking water, and the disadvantage of rapid water screening effect caused by hydrophobic plastic is overcome and a sealing role is achieved under a dual role of the above situation.
Owner:河北润林新材料科技有限公司
Emergency water blocking barrier
InactiveCN103469764APlay a water blocking roleEffective and orderly drainageDamsDykesEngineeringWater block
The invention discloses an emergency water blocking barrier which comprises a partition body. The hollow partition body is integrally prismatic and horizontally arranged, a water filling nozzle communicated with the inside of the partition body is arranged on the partition body, latches are arranged at one end of the partition body, latch grooves matched with the latches are formed in the other end of the partition body, the upper edge and the lower edge of the back of the partition body respectively horizontally extend towards one side far away from the front of the partition body to form an upper extension plate and a lower extension plate, a baffle plate with a through hole is arranged between the upper extension plate and the lower extension plate, one edge of the upper extension plate far away from the front of the partition body is provided with a plurality of notches, and adapter plates matched with the notches are arranged in the notches, perpendicularly hinged to the upper extension plate and slidably connected with the baffle plate. Water can be effectively blocked after load is added by filling the water through the water filling nozzle, a flood drainage port can function in effective and ordered flood drainage through an external pipeline, the emergency water blocking barrier can be conveniently lapped and reused and has a certain flow splitting effect, and water logging cannot be continuously deepened.
Owner:CHENGDU UNIVERSITY OF TECHNOLOGY
Graphene oxide nano-modified cement-based grouting material and preparation method thereof
The invention belongs to the technical field of cement-based grouting materials. The invention provides a graphene oxide nano-modified cement-based grouting material. The graphene oxide nano-modifiedcement-based grouting material is prepared from the following components in parts by mass: 85-95 parts of cement; 0.5-1.5 parts of a polycarboxylate superplasticizer; 0.01-0.04 part of graphene oxide;0.01-0.05 part of a carbon nano tube; 1.2-3 parts of a shrinkage reducing agent; 3-5 parts of a suspending agent; 5-8 parts of an expanding agent; 3-7 parts of an inorganic powder material; and 40-45parts of water. According to the invention, the nanoscale capillary pores in the cement-based grouting material are filled with the graphene oxide, so that a bridging effect is formed in micron-scalegel pores of the cement-based grouting material, and the anti-permeability performance of the cement-based grouting material is reinforced; the carbon nanotubes can increase the microcosmic adhesioneffect of the consolidation body surface of the cement-based grouting material to other substances, so that the service life of the cement-based grouting material can be remarkably prolonged.
Owner:CHINA UNIV OF MINING & TECH
A kind of flexible anti-cracking covering anti-seepage material with steel slag as main material and construction technology
ActiveCN113860830BIncreased durabilitySolve the disadvantages of easy cracking under dry and wet cyclesSlagWaste dump
Owner:ZHEJIANG UNIV
Power-control composite integrated water-blocking cable for urban rail transit
InactiveCN105336424ADoes not reduce insulationDoes not reduce volumePower cables with screens/conductive layersFlexible cablesElectric power transmissionInsulation layer
The invention provides a power-control composite integrated water-blocking cable for urban rail transit. The power-control composite integrated water-blocking cable comprises a direct-current power cable core and at least two control cable cores, wherein each control cable core includes a control cable core conductor and a control cable core insulation layer, and the control cable cores are concentrically stranded outside the direct-current power cable core to form a control cable core layer. The direct-current power cable core sequentially comprises a direct-current power cable conductor, an extruded direct-current power cable insulation layer, a lapped first high-flame-retardance water-blocking tape, a metal shielding tape and an extruded first inner sheath layer from inside to outside. The outside of the control cable core layer sequentially comprises a lapped second high-flame-retardance water-blocking tape, an extruded second inner sheath layer, an extruded outer sheath layer and a metal water-blocking protection layer from inside to outside. The cable has higher insulation performance, class-A flame-retardant performance, good comprehensive water-blocking effect and bending property and a compact structure, is low-smoke, halogen-free, rat-proof, ant-proof and ultraviolet-proof, is resistant to electric field interference and meanwhile can have the effects of electric power transmission and control and signal protection and measurement.
Owner:WUXI JIANGNAN CABLE
Power control composite integrated waterproof flexible cable for city track traffic
InactiveCN105374420ADoes not reduce insulationDoes not reduce volumeClimate change adaptationDetails of conductive coresElectrical conductorUltraviolet
The invention provides a power control composite integrated waterproof flexible cable for city track traffic. The cable comprises a DC power cable core and control wire cores. Each control wire core at least comprises a control wire core conductor and a control wire core insulation part, and the control wire cores are concentrically twisted outside the DC power cable core to form a control wire core layer; the DC power cable core successively comprises DC power cable conductors, an extruded DC power cable insulation part, a wrapped first high-flame-retardant waterproof band, a braided shielding layer and an extruded first inner sheath layer from the inside to the outside; and the control wire cores externally successively comprise a wrapped second high-flame-retardant waterproof band, an extruded second inner sheath layer, an extruded oversheath layer and a metal waterproof protective layer from the inside to the outside. The cable provided by the invention has the advantages of quite high insulation performance, A-grade flame retardation, low smoke, zero halogen, good integrated water-resistant effect, mice and ant resistance, ultraviolet prevention, electric field interference immunity, good flexibility, good bending performance and compact structure, and at the same time, can have power transmission and control, signal, protection and measurement effects.
Owner:WUXI JIANGNAN CABLE
Water blocking process of building through-wall pipeline
InactiveCN112197071AImprove water resistancePlay a water blocking rolePipesCleaning using gasesRubber ringWater leakage
The invention relates to the technical field of pipeline water blocking processes, and discloses a water blocking process of a building through-wall pipeline. The process comprises the following stepsof 1, cleaning the surface of a through-wall position of the pipeline, then wiping off water spots left by surface cleaning, meanwhile, cleaning the interior of a hole of a wall, and removing other impurity particles such as dust in the hole, so as to guarantee the solidification effect of glue during follow-up construction; and 2, sleeving the outer ring on one side of the through-wall positionof the pipeline with a sealing rubber ring. According to the process, rubber strips are plugged and fixed between the pipeline and the hole, meanwhile, the rubber strips are evenly distributed on theouter ring of the pipeline and supported in the hole, then gaps among the rubber strips, the pipeline and the hole are filled with a sealant, the sealant can be tightly attached to the pipeline and the hole through the rubber strips, and evenly fills the hole, meanwhile, part of the sealant is saved, the water blocking effect is good, water leakage can be avoided for a long time, and the water blocking action is achieved.
Owner:BEIJING DONGCHEN RUIFENG CHEM
Bathtub with partition
PendingCN114041713APlay a water blocking roleShampoo comfortablyBathsDouchesMechanical engineeringIndustrial engineering
The invention relates to the technical field of bathtubs, in particular to a bathtub with a partition, which comprises a bathtub main body, a raised line is arranged in the middle of the interior of the bathtub main body, a partition assembly is connected to the raised line, the partition assembly is composed of a partition plate, a seat and a movable plate assembly, and the movable plate assembly is arranged in the middle of the partition plate. A seat is arranged at the position, close to the movable plate assembly, of one side of the partition plate, multiple sets of second sealing strips are arranged on the side, close to the seat, of the partition plate, a sleeving groove is formed in the position, close to the protruding strip, of the partition plate, and a containing groove and a handle are arranged at the position, close to the sleeving groove, of the upper end of the partition plate. The movable plate assembly is composed of a first sealing strip, a movable back plate and a movable headrest, the first sealing strip is arranged on the side, away from the second sealing strip, of the movable back plate, and the upper end of the movable back plate is connected with the movable headrest.
Owner:张枫
Intelligent manhole cover for power tunnel
InactiveCN106436765BIncrease the difficulty of openingCombined fasteningArtificial islandsUnderwater structuresElectricityLight sensing
Owner:STATE GRID SHANDONG ELECTRIC POWER COMPANY WEIFANG POWER SUPPLY +2
Flexible anti-cracking covering anti-seepage material with steel slag as main material and construction technology
ActiveCN113860830AIncreased durabilitySolve the disadvantages of easy cracking under dry and wet cyclesSlagCoarse particle
The invention discloses a flexible anti-cracking covering anti-seepage material with steel slag as a main material and a construction technology. The material proportion comprises the following components in percentage by weight: 85-95% of coarse particle steel slag, 5-15% of sodium calcium bentonite and 0.1-1% of polypropylene fiber, which are preferably graded. The preparation method comprises the following steps of: mixing and stirring the raw materials well according to the ratio in an air-drying state, and then carrying out site construction by using a dry material compaction process to obtain a low-permeability covering layer flexible impermeable material. The problem that the anti-seepage performance is degraded due to the fact that a covering layer anti-seepage material is prone to cracking under a dry-wet cycle can be solved. The covering layer flexible anti-seepage material is manufactured from steel slag through a new formula and a construction technology, efficient resource utilization of the steel slag is achieved, and the cost of a covering layer is remarkably reduced. The method can be applied to industrial solid waste storage yards, household garbage landfills and other places.
Owner:ZHEJIANG UNIV
Flexible cable with sheath and preparation method thereof
ActiveCN111696715AEasy to peel offPlay a role in blocking water vaporNon-macromolecular adhesive additivesPolyureas/polyurethane adhesivesPolyesterPolymer science
The invention provides a flexible cable with a sheath. The cable is prepared from a conductor, and an insulating layer, a hot-melt polyester tape and a sheath layer which are sequentially coated on asurface of the conductor, wherein a hot melt polyester tape is a double-sided hot melt adhesive type hot melt polyester tape, and the double-sided hot melt adhesive type hot melt polyester tape comprises a substrate film layer, an inner side hot melt adhesive layer in contact with the insulating layer, and an outer side hot melt adhesive layer in contact with the sheath layer. The cable is advantaged in that through different coating proportions and formulas of the hot melt adhesive layers on the two sides of the hot melt polyester tape, the sheath layer and the insulating layer are easy to peel off when the cable is laid, and meanwhile, the effect of blocking water vapor in practical application is achieved, and meanwhile, due to the effect of the polyester layer between the insulating layer and the sheath, the cable further has a certain effect on transversely blocking the water vapor.
Owner:JIANGSU ZHONGTIAN TECH CO LTD +1
Choke feeding screw conveyor
Owner:刘振亮
Waterproof rubber jacketed flexible cable
PendingCN110473667APrevent oxidationReasonable structureClimate change adaptationInsulated cablesElectrical conductorEngineering
The invention relates to a waterproof rubber jacketed flexible cable. The cable comprises conductor monofilaments, a tin coating and a waterproof layer are arranged outside the conductor monofilaments, and the conductor monofilaments, the in coating and the waterproof layer form conductors, the at least two conductors are twisted. A waterproof filler I is arranged in a twisting gap, an insulatinglayer is extruded at the outer portions of the twisted conductors and the waterproof filler I to form cable cores, the at least two cable cores are twisted to form a cable, a waterproof filler II is arranged at the twisted gap to form a cable core, the outer portion of the cable core is extruded with an inner sheath, a radial waterproof layer is arranged at the outer portion of the inner sheath, and an outer sheath is extruded at the outer portion of the radial waterproof layer. The waterproof rubber jacketed flexible cable is good in waterproofness, and the cable can be normally used in occasions with water.
Owner:JIANGSU BAOAN CABLE
Field prefabricated channel
PendingCN109826162AEasy to connect and fixImprove work efficiencyArtificial water canalsEngineeringExpansion joint
The invention discloses a field prefabricated channel. The field prefabricated channel comprises C-shaped mound plates, wherein a bottom plate is connected between the C-shaped mound plates, the two ends of the C-shaped mound plates are provided with splicing mechanisms, and each splicing mechanism comprises a first splicing plate, a connecting hole, a second splicing plate, a labyrinth water stopgroove and an n-shaped expansion joint; each first splicing plate and the corresponding second splicing plate are occluded with each other, thereby facilitating the end-to-end connection and fixationof the C-shaped mound plates; a labyrinth type water stop band is formed in the labyrinth water stop groove, thereby being conductive to improving the anti-seepage effect of the splice of the C-shaped mound plates; the n-shaped expansion joints at the joints of the first splicing plates and C-shaped mound plates are used for compensating the temperature deformation to avoid the deformation and damage of the joint of the two C-shaped mound plates; during installation, the backfilling end faces of the bottom ends of the C-shaped mound plates are buried into the ground to form a channel foundation, which does not need assisting of soil bases at the two sides and is not affected by the deformation of the soil bases, the top ends of the C-shaped mound plates are walkable end faces, and a continuous walking channel is formed after the installation is completed.
Owner:吉林省水利科学研究院 +2
Double-layer open-cut tunnel and watertight door structure of double-layer void compartment access manhole thereof
PendingCN112323857APlay a water blocking roleSolve traffic problemsArtificial islandsUnderwater structuresGeotechnical engineeringWater block
The invention provides a double-layer void compartment access system of a double-layer open-cut tunnel and a watertight door structure of an access hole. The double-layer open-cut tunnel comprises structural side walls, a structural top plate, a structural bottom plate and a structural middle plate, wherein the structural middle plate is horizontally arranged between the structural side walls on both sides. The tunnel is divided into a void compartment and a travelling crane layer by the structural middle plate, the access hole is formed in the structural middle plate, maintenance personnel can enter the double-layer void compartment for maintenance, and the watertight door structure is installed at the bottom end of the access hole. A drainage pipe is pre-buried in the tunnel side wall beside the access hole as a preferential drainage measure, and water in the void compartment can be drained into a tunnel drainage ditch through the drainage pipe. A water retaining ridge is arranged atthe upper edge of the access hole as a second water blocking measure, the water in the void compartment can be prevented from flowing into the access hole, and a watertight door can play a final water blocking role. Obviously, the water drainage pipe, the water retaining ridge and the watertight door are arranged, so that the problems that the passage of a vehicle is influenced, and the tunnel side wall is washed due to water leakage of the access hole are effectively solved.
Owner:深圳市综合交通与市政工程设计研究总院有限公司
A kind of sheathed flexible cable and its preparation method
ActiveCN111696715BEasy to peel offPlay a water blocking roleNon-macromolecular adhesive additivesClimate change adaptationPolyesterPolymer science
Owner:JIANGSU ZHONGTIAN TECH CO LTD +1
Manufacturing method of biodegradable mulching film for rice
InactiveCN112442263AControl effective timeAvoid damageClimate change adaptationPlant protective coveringsPolymer sciencePolyethylene terephthalate glycol
The invention discloses a manufacturing method of a biodegradable mulching film for rice. The biodegradable mulching film is prepared from the following components, by weight: 60-80 parts of polylactic acid, 15-35 parts of degradable master batch, 2-8 parts of a PVC (Polyvinyl Chloride) smoothing agent, 1.5-6 parts of a PET (Polyethylene Terephthalate) anti-hydrolysis agent, 0.3-3 part of a PVC heat stabilizer, 0.5-2 part of a light stabilizer and 0.01-1.5 part of an antioxidant TNP. The modified material is obtained by mixing and stirring the polylactic acid and the degradable master batch and sequentially adding the PVC smoothing agent, the PET hydrolysis-resistant agent, the PVC heat stabilizer, the light stabilizer and the antioxidant TNP. The raw materials used in the invention are all biodegradable substances and have no pollution to the environment; the compatibility among the raw materials is good; the film is low in cost and low in product price, and all materials are non-starch substances.
Owner:河南龙都天仁生物材料有限公司
A kind of building masonry and construction masonry method
InactiveCN104358341BMeet the requirements of self-insulation systemSolve common quality problemsConstruction materialWallsMaterials scienceConcrete composites
Owner:FUJIAN MEIJINLAI GREEN BUILDING TECH +1
Micro-foaming polyamide magnetic plastic based on organic fluorine modification and preparation method of micro-foaming polyamide magnetic plastic
The invention discloses a micro-foaming polyamide magnetic plastic based on organic fluorine modification and a preparation method, wherein the magnetic plastic is prepared from a basic raw material and an additive raw material, the basic raw material is composed of the following raw material components: PA resin, a CO2-philic additive, phenolic hydroxyl group-containing resin and a filler; the added raw materials comprise the following components: a compatilizer, a nucleating agent, a foaming agent and other auxiliaries, and the CO2-philic additive is added to regulate and control dissolution and diffusion of CO2 in a PA resin matrix, reduce gas escape, improve the utilization rate of the foaming agent and save the material cost; the phenolic hydroxyl-containing resin is added to reduce the water absorption of the PA resin, so that the defects of poor product size stability, poor surface quality, poor foaming effect, reduced mechanical property and the like caused by high water absorption of the PA composite material are overcome; due to the addition of the magnetic powder, the PA plastic is endowed with magnetic performance, so that the PA plastic becomes a novel polymer functional material, and the application range of the micro-foaming PA composite material in the fields of automobiles, electronics, electrics and the like is further expanded.
Owner:GUIZHOU MATERIAL IND TECH INSTITUE
Plastic formwork with self-sealing structure and sealing method for plastic formwork
ActiveCN109707150AOvercoming the disadvantages of rapid water screening effectReduce churn rateHydro energy generationForming/stuttering elementsHysteresisScreening effect
The invention provides a plastic formwork with a self-sealing structure and a sealing method for the plastic formwork. A plurality of long grooves are formed in the outer side wall of a side frame ofthe plastic formwork, short grooves for shielding the end butting positions of the long grooves are formed in the sides of the butting positions of every two adjacent long grooves, the length of the short grooves is greater than the minimum spacing between the long grooves which are shielded by the corresponding short grooves. In this way, after plastic formworks are assembled and butt-joined, thelong grooves on the side frames which are attached to each other form sealed cavities correspondingly, and the short grooves form sealed cavities correspondingly. During subsequent pouring of concrete, under the pressure and vibration effect of the concrete, water flows into the sealed cavities from joints of the formworks, the water with which the sealed cavities are filled forms a damming effect, the role of deceleration and hysteresis is played on the water flowing out from the joints of the formworks at high speed, and the speed of water loss is reduced; and floating slurry flows into thesealed cavities and can further play a water-blocking effect, under the dual effects of the conditions, the disadvantage of the rapid water screening effect caused by the plastic hydrophobic is overcome, and the sealing effect is achieved.
Owner:河北润林新材料科技有限公司
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