55results about How to "No post-maintenance" patented technology

The invention discloses an ultra-low power consumption passive structure health monitoring system and method. The system includes a plurality of passive structure health detection nodes, an RFID reader, a wireless router and a control center; the passive structure health detection nodes measure structure health parameters when the RFID reader sends out a specific instruction and return the structure health parameters to the RFID reader, the RFID reader and the control center are connected to the same local area network through the wireless router, and the control center can remotely access the RFID reader and read sensing information from the plurality of passive structure health detection nodes; and the control center receives stress information, temperature information and speed information inside a monitored structure in real time, analyzes and displays the structure health condition. The system provided by the invention can monitor stress information inside the monitored structure and a change trend in real time and can provide early warning for occurrence of a building disaster, the system is convenient to deploy and collect information, and does not need later maintenance, and is of great significance to structure health evaluation of a long-span bridge, a high-rise structure, an expressway or ocean platform and the like.

The invention discloses a step type aluminum alloy node device and relates to an assembling method of the device. The device comprises a vertical rod part and a group of horizontal rod parts, wherein the vertical rod part and the group of horizontal rod parts are fixedly connected, and the group of horizontal rod parts uses the vertical rod part as the center to be distributed in a radial mode. A first disk body and a second disk body are connected between the vertical rod part and the horizontal rod parts, the first disk body and the second disk body are opposite to each other, a via hole for the vertical rod part to penetrate through is formed in the first disk body, L-shaped connecting parts are connected between the lateral wall of the end of the vertical rod part and the lateral side of the first disk body and the lateral side of the second disk body which are opposite to each other, the top surfaces and the bottom surfaces of the ends of the horizontal rod parts are respectively and fixedly connected with the lateral side of the first disk body and the lateral side of the second disk body which are opposite to each other, and the vertical rod part, the horizontal rod parts, the first disk body, the second disk body and the L-shaped connecting parts are all made of aluminum alloy. The step type aluminum alloy node device and the assembling method have the advantages of being high in accuracy, convenient to manufacture and install and the like.

The invention relates to a revetment structure composed of plastic steel plate piles and concrete. The revetment structure comprises plastic steel plate piles and a concrete coping, wherein the plastic steel plate piles are connected through a connector having two mutually matched ends; the concrete coping is preformed and can be stably buckled with the upper ends of the plate piles. The revetment structure can be used for revetments of rivers or lakes, is safe and stable, high in construction speed, low in construction cost, environment-friendly and pollution-free, less in influence on the surrounding environment, and long in durability, can be further used for resisting the seepage of embankments and dike bodies of rivers and protecting dams.

The invention discloses a vehicle window for quick escape. The upper part of the vehicle window is fixed and can be rotated, and the lower part can be opened. Under the normal condition, a clip on the lower part of the vehicle window is used to fix the vehicle window on a vehicle window frame; and under an emergency, the passenger pushes the clip outward to unlock the vehicle window and opens the vehicle window to escape.

The invention discloses a convenient brick grass and a manufacture method thereof. The convenient brick grass has three parts from top to bottom, which are respectively called as an upper layer, a middle layer and a base, wherein the upper layer is mixed by an organic fertilizer, clays and seeds; the middle layer is a mixed layer of a water-retaining agent and clays; and the base is mixed by a deburring medicament, water and soil. Components of the three parts are mixed according to a certain proportion, respectively compressed and placed together to carry out total compression to manufacturethe brick grass similar to the property of floor tiles, thereby having low requirement on the field and convenient pavement and greatly reducing the cost.

The invention relates to a high-power LED phase-change cooling device comprising an evaporating chamber, a circulating pump, a condensing heat radiator and a nozzle, wherein the evaporating chamber is a closed shell and is provided with an evaporating plate and a back plate which are oppositely arranged; the evaporating plate is a metal plate; the outer side of the evaporating plate is welded with an LED lamp, and the inner side of the same is connected with a porous metal plate or a screen mesh; the nozzle is arranged at the inner side of the back plate and points to the evaporating plate; the circulating pump and the condensing heat radiator are arranged outside the evaporating chamber; the shell of the evaporating chamber is provided with an outlet positioned below the nozzle; a pipeline is sequentially connected with the outlet of the evaporating chamber, the circulating pump and the condensing heat radiator and then communicated with the nozzle by penetrating through the back plate of the evaporating chamber so that a closed loop is formed by the evaporating chamber, a micropump and the condensing heat radiator; and the evaporating chamber is internally provided with a cooling working medium. The invention has the advantages of good radiating reliability, high radiating efficiency, compact structure, convenient processing, low manufacturing cost and higher practicality, and is suitable for industrialized batch production.

The invention discloses a magnetized brackish water jet aerating apparatus which comprises a pipeline, wherein a magnetizing device is arranged in the pipeline; and one end of the pipeline is sequentially connected with a jet aerating pipeline and a fertilizer applicator. The magnetizing device comprises a first magnet assembly, a second magnet assembly, a third magnet assembly and a fourth magnetassembly arranged in sequence according to an axial direction of the pipeline; a magnetic induction line direction of the first magnet assembly is perpendicular to a radial direction of the pipeline;an angle of 90 degrees is formed between a magnetic induction line direction of the second magnet assembly and the magnetic induction line direction of the first magnet assembly; an angle of 180 degrees is formed between a magnetic induction line direction of the third magnet assembly and the magnetic induction line direction of the first magnet assembly; and an angle of 270 degrees is formed between a magnetic induction line direction of the fourth magnet assembly and the magnetic induction line direction of the first magnet assembly. According to the arrangement of the four magnet assemblies, water flow in the pipeline 1 is subjected to 360-degree omnidirectional magnetization, so that brackish water is uniform in magnetization. Therefore, physicochemical properties of the brackish water are obviously improved, the activities of salt ions are reduced, the water molecule of the brackish water is enhanced, and the dissolved oxygen ability of the brackish water is improved.

The invention discloses a sewage treatment system, which is characterized by comprising a sewage collection tank, a coarse gravel filtration tank, a fine sand filtration tank, a sediment purificationpool, an ecological ditch and an ecological pond, wherein a water inlet of the sewage collection tank is communicated with a sewage drainage pipe, and a water outlet of the sewage collection tank is communicated with the coarse gravel filtration tank; sewage to be treated firstly enters the coarse gravel filtration tank through the sewage collection tank so as to be subjected to preliminary ecological filtration, is then subjected to secondary ecological filtration by means of the fine sand filtration tank, and is finally purified by means of sedimentation of the sediment purification pool; when the water amount in the sediment purification pool exceeds a preset standard amount, the water subjected to sediment purification enters the ecological ditch so as to be subjected to deep purification, and finally flows into the ecological pond. The sewage treatment system adopts three stages of purification, i.e., the coarse gravel filtration tank, the fine sand filtration tank and the sediment purification pool, and then further adopts the ecological ditch and the ecological pond for performing deep purification, thus not only improving the water quality purification effect, but also having a certain water accumulation effect; the system maintains the balance of aquatic ecological environment by combining the concept of a sponge city.

The invention relates to an automatic correcting error control method on a converter tilting angle, including PLC (Programmable Logic Controller) control, a rotary encoder and a master controller. The master controller is provided with four master controller control points. When initial angles are recorded, whenever the converter rotates and passes the four master controller control points, the PLC automatically records instantaneous coded values. Corresponding angles are calculated in turn. Compared the angles with the initial angles, corresponding angular deviation values are obtained. Then the PLC automatically corrects the converter angle according to the deviation values before the next angular deviation value is generated. According to a technical scheme of the invention, control point can be arranged easily near each master controller control point angle, and are corrected by signal level and a rotary encoder of each master controller control point to eliminate deviation, so as to ensure needs of production technology and omit subsequent maintenance after debug.

The invention discloses a smart cable, a smart cable preparation method and a smart cable safety state detection method. The smart cable comprises a jacket and tie bars arranged in the jacket, whereinat least one tie bar in the jacket is replaced by a fiber enhanced optical fiber tie bar; the fiber enhanced optical fiber tie bar comprises a multi-core optical fiber and a fiber enhanced plastic rib wrapping the periphery of the multi-core optical fiber; the multi-core optical fiber is placed in the center of the rib in the length direction of the fiber plastic enhanced rib; the fiber enhancedoptical fiber tie bar is made through a pulling-extruding molding process; during machining and molding of the smart cable, at least one tie bar in the cable is replaced by the fiber enhanced opticalfiber tie bar; the cable is coated with the jacket, and an anchor gear is mounted to obtain the smart cable based on multi-core fiber sensing. The multi-core optical fiber is combined with the cable organically, so that the cable has the characteristics of high modulus, high durability, creep resistance and the like, and the stress change, bending change, temperature change and vibration change ofan in-service cable can be measured accurately in a distribution manner.

The invention discloses building basement filtering concrete and a preparation method thereof. The building basement filtering concrete is prepared from the following raw materials in percentage by mass: 70% to 80% of coarse aggregate, 13% to 20% of cement, 0.5% to 1.0% of reinforcer, 0.13% to 0.4% of high-strength inorganic fiber, 0.4% to 1.2% of rubber powder and 4% to 6% of water, wherein the particle diameter of the coarse aggregate is 5 to 20 mm, and the reinforcer is a compound additive of an active nano silicon aluminum material and organic functional molecules. According to the filtering concrete disclosed by the invention, the reinforcer, the inorganic fiber and the rubber powder are utilized as modifiers, so that a synergistic effect is achieved, and strength and crack resistanceof the filtering concrete are improved; meanwhile, water permeability, impact resistance and anti-block performance of the filtering concrete are improved. The filtering concrete disclosed by the invention can be applied to a middle layer of a terrace system of a building basement slab, can achieve a bearing effect and simultaneously can achieve filter water flow guiding and water vapor dredgingfunctions; ponding and dampness of a surface layer of the basement are avoided, and the situation that a resin terrace of the basement is damaged by water seepage or water vapor is prevented.

The invention provides a composite structure overhead conductor capable of melting ice and snow automatically. An inner stranded cable core layer is wrapped by a force-sensitive sensing layer, the force-sensitive sensing layer is wrapped by a thermosensitive heating layer, and the thermosensitive heating layer is wrapped by an outer stranded cable core layer. The composite structure overhead conductor is mainly used in areas where snow disasters or freezing rain disasters are severe, has strong capability in resisting ice and snow, and is low in comprehensive cost and cable loss and free of post-maintenance.

An air-tight bottom support stirring device of an efficient anaerobic fermentation tank belongs to the technical field of environmental protection equipment. The device comprises a stirring shaft I, abearing seat, a bottom bearing, a shaft sleeve, a sleeve, a top gland and a pneumatic sealing device. The bearing seat is arranged at the bottom in a tank body. The bottom bearing is arranged on theinner ring of the bearing seat. The shaft sleeve mounted at one end of the stirring shaft I is arranged in the bottom bearing. The sleeve sleeves the stirring shaft I, one end is connected with the outer ring of the bearing seat, and the other end is connected with the top gland which sleeves the stirring shaft I. A settling cavity is formed between the sleeve and the inner ring of the bearing seat. An air cavity is formed between the sleeve and the top gland. The pneumatic sealing device is arranged on the stirring shaft I in the air cavity. An air inlet is formed in the top gland, and an airpipe connected with an air source is mounted at the air inlet. The other end of the stirring shaft I is connected with a stirring shaft II of the anaerobic fermentation tank through a flange. A drainage pipe communicated with the settling cavity is arranged at the bottom of the tank body. According to the invention, the load of the tank top is reduced, and the safety of the tank top is improved.The pneumatic sealing device effectively prevents fine sand from entering the bottom bearing.

The invention discloses a novel greening environment-friendly illuminating lamp, and relates to an illuminating lamp, which comprises a water wheel blade, a power generator, a photovoltaic panel, a storage battery pack, a support post, a greening layer, a water pump, an irrigation pipeline, an irrigation spray head, a light-operated switch, a landscape lamp, a lamp holder and a road surface illuminating lamp. The water wheel blade is connected with the generator, the generator is fixed on the left side of the storage battery pack, the storage battery pack is connected with the photovoltaic panel through a supporting column, three greening layers are sequentially fixed to the supporting column from top to bottom, two irrigation nozzles and a light-operated switch are fixed to the greening layer located at the top of the supporting column, the two irrigation nozzles are connected with an irrigation pipeline, and the irrigation pipeline is connected with the water pump. The lighting lampsprovide lighting for the road environment around a greening area while automatically maintaining the planted greening vegetation, the lighting lamps serve as greening landscapes and lighting equipment, no energy supply is needed, environmental protection is achieved, later maintenance is not needed, and use is convenient.

The invention discloses an assembled multifunctional optical cable support which comprises side plates, fasteners, a first platform plate, a second platform plate, sealing strips and studs. Accordingto the assembled multifunctional optical cable support, orderly hanging of steel strands and optical cables can be achieved, a reliable installation platform is provided for urban intelligent equipment, and multifunctional requirements can be met; each part is made of a light high-strength corrosion-resistant GFRP material so that the weight of the bracket is reduced on the premise of ensuring thestructural performance of the support, and the support is convenient to transport and install; good corrosion resistance is achieved, and later maintenance is not needed; according to the assembled multifunctional optical cable support, all components are modularized, production is standardized, the mass of each component does not exceed 2 kg, flexible installation can be achieved, and the construction period is greatly shortened; the assembly type multifunctional optical cable support movable support is arranged on the first platform plate, the optical cable is stretched to an installation position through the rolling shaft in construction, the optical cable is hung on the optical cable point position of the side plates, and the optical cable is convenient to erect.

The invention discloses a GFRP light prefabricated assembly type cable duct bank and a construction method thereof, and belongs to the field of electric power construction. According to the GFRP lightprefabricated assembly type cable duct bank, standardized cable ducts are assembled into a modular cable duct bank through horizontal fasteners and vertical fasteners, and the laying requirements ofmultiple layers and multiple columns of cable duct banks can be met. All parts of the GFRP light prefabricated assembly type cable duct bank are made of novel light corrosion-resistant GFRP materialsin a factory through a pultrusion process, automatic production is achieved, and each part does not exceed 35 kg; during on-site construction, only three parts need to be assembled, the construction efficiency is improved by 50% or above, and the characteristics of being light-weight, high-strength, corrosion-resistant, high in production automation degree, short in on-site construction period andthe like are achieved.