34results about How to "No energy required" patented technology

The invention discloses a binocular visual sense depth information obtaining method based on deep learning, which belongs to the stereoscopic visual sense technology field and comprises the following steps: 1) obtaining training data; 2) marking the original data set to generate the training data; 3) conducting deep learning network training to the obtained image and depth information; and 4) obtaining the depth map output. According to the invention, the luminance information of the left image and the right image that are mutually correlated is calculated; and through the use of a large amount of image and depth information, training and learning are carried out so as to obtain a disparity data model of the binocular image, and after the actual acquisition of the binocular information and according to the training model, it is possible to rapidly and accurately obtain the stereoscopic information of the current scene so as to successfully obtain the depth. The method transfers calculation amount from depth obtaining to the training process, and the hardware is light in weight without the need of laser and energy. Cost-effective and simple to use, the method can be conveniently expanded. The method does not actively emit energy and is suitable for scenes both indoors and outdoors.

The invention provides a preparation method of carbon quantum dots based on a chemical reaction of fructose and sodium hydroxide, and belongs to the technical field of nanomaterials. The method comprises a first step of preparing a D-fructose solution; a second step of preparing a sodium hydroxide solution; a third step of mixing the D-fructose solution with sodium hydroxide solution; and a fourth step of standing the mixed solution to obtain a carbon quantum dot solution. The preparation method is simple and economic, is easy to operate, and has extremely low energy consumption. The prepared carbon quantum dots have high fluorescent intensity, can transform ultraviolet light to green visible light, have no biological toxicity and no pollutions to the environment, and have great application potentiality in in improving conversion efficiency of solar cells and in the fields of biological labels, biological medicine and the like.

The invention discloses a mass center adjustable mixed type vibration damping platform. The mass center adjustable mixed type vibration damping platform comprises top platforms, a bottom platform, vibration damping units and mass center adjusting units, the plurality of vibration damping units are obliquely arranged between the top platforms and the bottom platform, one mass center adjusting unitis arranged between each vibration damping unit and the top platform, and the mass center adjusting units and the vibration damping units are arranged in the same axial direction; the mass center adjusting units comprise upper screw rods, sleeves and connecting rods, through holes are axially formed inside the sleeves, each of the top and the bottom of each through hole is provided with a thread section, the top ends of the upper screws are connected with the top platforms, the bottom ends of the upper screws are in threaded connection with threaded sections at the tops of the through holes, the top ends of the connecting rods are in threaded connection with the threaded sections at the bottoms of the through holes, and the bottom ends of the connecting rods are connected with the vibration damping units. The mass center adjusting units can realize platform mass center adjustment and pose adjustment, so that the mass center of a rigidity center and the mass center of a vibration damping system (including a vibration damping object and a rigid pedestal) are arranged on the same vertical line, and the vibration damping and vibration isolation effect can be greatly enhanced.

The invention discloses a high-performance multi-azo brown reactive dye which comprises a multi-azo dye shown in formula I or formula II (see the specification). The reactive dye is applicable to dip dyeing, continuous coloring and printing on cellulosic fiber including cotton, flax and mucilage glue or protein fiber including fur and silk, and the colors vary from yellow light brown to nigger-brown. The high-performance multi-azo brown reactive dye has higher color absorption rate and fixation rate, higher wet-processing fastness including bear washing and perspiration, and excellent color fastness to sunlight. As a monogenetic dyestuff, the high-performance multi-azo brown reactive dye is free from the defects of bad continuous dyeing in the head, tail and central parts.

The invention discloses a volute casing device for realizing orderly water drainage and waterlogging prevention in cities. The device comprises underground pipe networks for cities, and water collecting wells communicated with the underground pipe networks, wherein the underground pipe networks are connected with a main pipeline, and water flow spiral movement generating devices are mounted at water outlets of the water collecting wells; the water flow spiral movement generating devices adopt volute structures and are provided with tangential water inlets and axial water outlets, the axial water outlets are communicated with water drainage pipes at the water outlet positions of the water collecting wells, and the tangential water inlets are used for guiding the water into an inner cavity of a volute casing in the tangential direction of the circumference of the side surface of the volute casing. The device can be used for effectively reducing the equivalent flow passing area of pipelines at the water outlets of the water collecting wells at high-elevation regions and the water flow speed of the inner parts of the pipelines, realizing the purpose of coordinating the water drainage flow amount in different regions, and contributing to relieving the waterlogging disasters caused by heavy rainfall in the cities.

The invention provides an energy-saving A type auxiliary electric stair-climbing wheel chair comprising a wheel chair rack, universal wheels, back wheels, a seat chair, seat chair armrests, a power supply switch, a storage battery, a motor, a decelerator, a pedal plate, pedal plate supporting rods, a pedal plate adjusting plate, a landing rack, a controllable air spring combination slow-descending device, a guide wheel, a ratchet combination safety self-locking device, a foldable lengthened armrest device, a double crank linking positioning support rod device and a clutch combination device. The beneficial effects are that the energy-saving A type auxiliary electric stair-climbing wheel chair is simply structured and possesses light weight; the wheel chair can safely and stably come downstairs without help of any power, so energy use can be reduced by 50%; no noise can be caused and environment protection can be achieved; motor starting times can be reduced and current impact to the motor and the storage battery can be reduced, so service life of the motor and the storage battery can be prolonged; and the wheel chair can be flexibly and conveniently pushed on common road surfaces.

The invention provides a cellphone stand with a loudspeaker. The cellphone stand comprises a horn and a base. According to the technical scheme, the cellphone stand is characterized in that a stand body is made of silica gel, the base is used for holding a cellphone, the inner side of the base is provided with a sound guide hole corresponding to a speaker of a cellphone, the sound guide hole is communicated with the horn, the L shape of the horn allows an opening of the horn right to face a user, the bottom of the base is provided with a cellphone data cord hole, a loudspeaking function of the cellphone is started, sound is propagated to the horn through the sound guide hole, the horn gathers the sound and amplifies the same before playing the sound, and loudspeaking is achieved; the cellphone can be placed on the stand vertically or transversely. The cellphone stand has the advantages that no energy is required, no wire is required, no handholding is required, and experience on cellphone playing video and audio is better.

The invention discloses a heat pump hot-water unit for recovering food grade residual heat which is of lower-level heat source and which is produced in a liquid-cooling and storage equipment used in the production process of the diary industry, the beverage industry, the wine industry and the pharmaceutical industry, etc. The heat pump hot-water assembly comprises a refrigerated tank, a circulating pump of the refrigerated tank, an evaporator, a high-temperature water case, a circulating pump of the high-temperature water case, a low-temperature water case, a circulating pump of the low-temperature case, a vapor-liquid separator, a compressor, a filter, a expansion valve, a high-temperature condenser and a low-temperature condenser. The advantages of the invention can be demonstrated in the following aspects: simple in structure; all components being able to be dismantled and washed; no need for energy; energy-saving and environmental-protective; capable of producing certain amount of high-temperature water and low-temperature water without additional input besides performs the function of freshness preservation through lowering temperature of refrigerated liquid.

The invention discloses a rain-sewage shunting type rainwater opening structure which comprises an inner wall and an outer wall. The inner wall forms a rainwater collecting area, and a sewage storagearea is formed in the space between the outer wall and the inner wall. A sewage cover plate covers the top of the sewage storage area, a sewage dredging bucket, a sewage pipe and a filter screen are arranged in the sewage storage area, and the outlet end of the sewage pipe extends out of the rainwater opening structure. A seal plate rotary shaft is arranged at the bottom of the inlet end of the sewage pipe, a sewage sealing plate is arranged on the seal plate rotary shaft, and an adjustable weir plate is arranged at the upper end of the sewage dredging bucket. A square water via hole is formedin the middle of the inner wall. A clear water cover plate covers the top of the rainwater collecting area, a clear water dredging bucket is arranged in the rainwater collecting area, and a rainwaterpipe is arranged at the bottom of the clear water dredging bucket. The rain-sewage shunting type rainwater opening structure intercepts initial rainwater to the most degree while meeting the road water draining requirement on a road needing initial rainwater interception so as to reduce urban watercourse and lake pollution.

The invention relates to an energy saving type warm-keeping keyboard cover. The energy saving type warm-keeping keyboard cover comprises a keyboard, a keyboard cover is covered in the outer side of the keyboard, a case cover is connected with the upper portion of the keyboard cover through heat energy tubes, the keyboard cover is fixed at the rear end of a computer main case through a plurality of buckles, and an power outlet of the case and a thermovent of the case are covered by the case cover. The energy saving type warm-keeping keyboard cover is compact and reasonable in structure, convenient in manufacturing and installment, low in cost, safe and reliable in use. The energy saving type warm-keeping keyboard cover needs no energy, and can directly use heat discharged by the computer main case, the heat is recycle to the keyboard cover through the case cover, the keyboard cover is connected with heating wires through a USB interface in the case cover, the case cover can keep warm, and the problem that hands are cold when people use the keyboard to operate the computer in winter can be solved.

The invention discloses a high-performance multiple azo brown reactive dye. The reactive dye comprises the multiple azo reactive dyes shown by a formula I. The reactive dye is used for dip dyeing, continuous dyeing and printing on protein fibers such as fur, silk and the like or cellulosic fibers such as cotton, flax and the like, the color ranges from yellow light brown to dark brown, and the high-performance multiple azo brown reactive dye not only has higher dye absorptivity and fixation rate, but also has strong such wet-processing fastness as being washable and sweat proof as well as light fastness. The monogenetic dye does not have the defects of head-tail difference and edge-center difference.

The invention discloses a circular-table-shaped device for realizing orderly water drainage and waterlogging prevention in cities. The device comprises underground pipe networks for cities, and water collecting wells which are communicated with the underground pipe networks, wherein the underground pipe networks are connected with a main pipeline, and water flow spiral movement generating devices are mounted at water outlets of the water collecting wells; the water flow spiral movement generating devices are inclined circular-table-shaped casings and are provided with hollow inner cavities, the end surfaces with the small diameter of the casings face to the water outlets of the water collecting wells, the end surfaces with the large diameter are back to the water outlets of the water collecting wells and are arranged in the water collecting wells, the water flow spiral movement generating devices are provided with tangential water inlets and axial water outlets, and the tangential water inlets are used for guiding the water into the inner cavities in the tangential direction of the circumference of the side surface of the casings. The device can be used for effectively reducing the equivalent flow passing area of pipelines at the water outlets of the water collecting wells at high-elevation regions and the water flow speed of the inner parts of the pipelines, realizing the purpose of coordinating the water drainage flow amount in different regions, and contributing to relieving the waterlogging disasters caused by heavy rainfall in the cities.

The invention discloses a simple water purifier and belongs to the technical field of water purification devices. The simple water purifier comprises a water-containing shell, a filter arranged in thewater-containing shell and a water outlet nozzle which is arranged outside the water-containing shell and is communicated with an inner cavity of the water-containing shell, wherein the filter comprises a plurality of water purification pipes made of a water purification material; the plurality of water purification pipes are arranged in a U shape and are stacked inside a water-containing cavityof the water-containing shell according to a certain ratio; two U-shaped ends of each of the water purification pipes are communicated with a water inlet of the water-containing shell; the water purification material comprises a three-layered structure including a coarse filtration layer, a fine filtration layer and a sterilization layer which are stacked in sequence; water is filtered through thecoarse filtration layer, the fine filtration layer and the sterilization layer in sequence; the coarse filtration layer is a porous Ti film; the fine filtration layer is made of a nanometer photocatalyst material; the sterilization layer is prepared from nano-silver. The simple water purifier provided by the invention has the advantages of simple structure and extreme convenience in utilization.A user only needs to put the simple water purifier at a container opening. Meanwhile, the simple water purifier does not need energy consumption, so that the utilization cost is extremely low and thesimple water purifier is convenient to carry.

Disclosed is a highway car pressure generator set. A steel structure roadbed is arranged on the road, a road slab is embedded and fixed in a square groove of the steel structure roadbed, the two sidesof the road slab are each provided with a strip through hole, cross beams on the upper faces of the front ends of pedal plates extend out of the road slab from the strip through holes and can do up and down motion, shafts on the tail ends of the pedal plates are matched with bushing combinations to be fixed to a support of the steel structure roadbed, clamping plate supports on the lower faces ofthe front ends of the pedal plates are in shaft connection with piston rods of hydraulic cylinders, the lower ends of the hydraulic cylinders are in shaft connection and fixed to a bracket of the steel structure roadbed, liquid discharge pipes of the hydraulic cylinders, reverse valves, liquid discharging main pipes, buffer devices, hydraulic motors, liquid boxes, liquid conveying main pipes, liquid conveying pipes, consequent valves, and liquid conveying pipes of the hydraulic cylinders are in abut joint in sequence, and a loop is formed; when a vehicle passes through, wheels can run over the cross beams of the pedal plates, the weight pressure of the vehicle presses down the pistons of the liquid cylinders through the cross beams of the pedal plates, after the wheels pass through, springs of air pressure cylinders bounce the pistons, through repeated running, liquid is sucked and discharged, the weight pressure of the vehicle is converted into hydraulic power, and the hydraulic motors are driven to rotate to drive an electric generator to rotate and generate electricity.

The invention discloses a bioretention pond having the functions of percolation, retention, storage, purification, usage and discharge. The bioretention pond comprises a pond body, a water storage tank and a water guiding assembly. A soil layer and a gravel layer are arranged in the pond body, the pond body is provided with a water outlet, the gravel layer is located below the soil layer, and thewater outlet is located below the gravel layer; the height of the inner top face of the water storage tank in the vertical direction is smaller than or equal to that of the upper surface of the gravellayer, the water storage tank and the pond body constitute a U-shaped communication device, the gravel layer has an anaerobic state and an aerobic state, and the anaerobic state and the aerobic statealternately appear to remove nitrogen elements in water; one end of the water guiding assembly is disposed in the soil layer, and the other end of the water guiding assembly is disposed in the waterstorage tank to guide the water in the water storage tank into the soil layer. The bioretention pond having the functions of percolation, retention, storage, purification, usage and discharge has theadvantages of being free of energy and maintenance, high in reliability and the like.

The invention provides a mobile phone support with a loudspeaker. The mobile phone support comprises a horn and a base. The technical scheme employed by the invention is as follows: the support is made of a silica gel material, the base is used for placing a mobile phone, the inner side of the base is provided with a sound-guiding hole corresponding to a mobile phone loudspeaker, the sound-guiding hole communicates with the horn, the horn is L-shaped, the port of the horn is right oriented towards a user, mobile phone data line holes are reserved at the bottom of the base, a mobile phone speaker function is started, sound is transmitted to the horn through the sound-guiding hole, the horn gathers, amplifies and plays the sound, a sound amplifying function is exhibited, a mobile phone is placed on the support, and the mobile phone can be straightly placed or transversely placed. The mobile phone support with the loudspeaker has the following advantages: neither energy nor wire rods are necessary, hand holding is also unnecessary, and better experience is provided for watching of audio and videos through the mobile phone.

The invention relates to an energy saving type warm-keeping mouse pad. The energy saving type warm-keeping mouse pad comprises a computer main case, a power outlet of the case and a thermovent of the case are located at the rear end of the computer main case, and a case cover is installed on the power outlet of the case and the thermovent of the case, both ends of the case cover are fixed on the computer main case respectively through buckles, an exit of the case cover is connected with the top portion of a mouse pad cover through a heat energy tube, and the mouse pad cover is arranged on the top portion of a mouse pad. The energy saving type warm-keeping mouse pad is compact and reasonable in structure, convenient in manufacturing and installment, low in cost, safe and reliable in use. The energy saving type warm-keeping mouse pad needs no energy, can directly use heat discharged by the power outlet and the thermovent of the computer main case, the problem that hands are cold when use a mouse to operate the computer in winter can be solved, and the mouse pad has a better promotion value.

The invention relates to a means for adjusting roadbed convective heat exchange in hairpin manner; the means includes fixing an axial rod to the wall of a vent pipe, and sleeving the axial rod with a spindle sleeve; fixing a ventilation door to the spindle sleeve; setting a support rod in the center of the axial rod, and connecting the support rod to one end of a hairpin telescopic pipe through hinge I; connecting the other end of the hairpin telescopic pipe to the ventilation door through hinge II. The means has the advantages of simple structure, convenience in installation and high stability, and the meas can fully adapt to the extremely severe environment on Qinghai-Tibet plateau, meet the special requirements of engineering construction, and improve cooling efficacy of the ventilating roadbed maximally.

The invention belongs to the technical field of preparation of fibers, and relates to a functional viscose fiber for producing silicate minerals and acid and salt amphoteric matters, in particular to a viscose fiber containing an adhesive short fiber and an adhesive filament for eliminating bad smell of perspiration and a preparation method thereof. The viscose fiber for eliminating bad smell of perspiration comprises a chitin fiber and a deodorant, wherein the weight percentage content of the chitin fiber is 92.5-98 percent; the deodorant is an aluminum silicate mineral inorganic deodorant, and is less than or equal to 1 mum in average particle diameter; the chitin fiber or cellulose comprises an adhesive short fiber and an adhesive filament; the dry fracture strength of the adhesive short fiber is more than 2.23cN / dtex, and the wet strength is more than 1.05cN / dtex; the dry fracture strength of the adhesive filament is more than 1.7cn / dtex, and the wet strength is more than 0.84cn / dtex; and the ammonia gas reducing rate can be more than or equal to 75 percent, the acetic acid reducing rate can be more than or equal to 80 percent, and the isopentanoic acid reducing rate is more than or equal to 85 percent. The preparation method comprises the following steps of: mixing a nano-grade deodorant with a high-concentration cellulose adhesive to obtain a blended spinning solution; spinning and molding a blend fiber through a coagulation bath; and desulfurizing, washing with water and drying to obtain the viscose fiber for eliminating bad smell of perspiration. A product has the advantages of high deodorizing performance, no side effects, simple preparation process, reliable principle, easiness and convenience in operating, saving in energy sources, environment friendliness and remarkable economic benefit.

The invention provides an automatic lifting measuring device and measuring method for the water level of a top covering channel. The device comprises a floating ball, a steel cable, a scale rope, a bottom fixing device and a winding device, the bottom fixing device is fixedly mounted on a bottom wall of the channel; a hole is formed in the top of the channel in a covering mode, the winding deviceis installed on the hole, a fixing ring is arranged in the middle of the floating ball, the scale rope starts from the bottom of the floating ball, sequentially penetrates through a circular ring of the bottom fixing device and the fixing ring to be connected to the winding device, and the steel cable is fixedly connected with the bottom fixing device and the winding device, and the steel cable penetrates through the fixing ring. The brand-new measuring device and method are provided for measuring the water level in the channel with the covered upper portion, and the measuring device and method have the advantages of being simple in structure, time-saving, labor-saving, convenient to use, efficient and the like.

The invention discloses a cable buffer apparatus. The cable buffer apparatus comprises a telegraph pole, an automatic expansion joint, a wire connector, a first reversing pulley and a second reveringpulley; the automatic expansion joint comprises a fixed plate, movable pulleys, a movable pulley frame, fixed pulleys, a fixed pulley frame, contraction-expansion rods, a sliding rod and a pull rope;each contraction-expansion rod adopts sealed injection cylinder design; one end of each contraction-expansion rod is welded on the movable pulley frame while the other end is welded on the fixed pulley frame; the pull rope passes through the space between the movable pulleys and the fixed pulleys alternately in a reciprocating manner; one end of the pull rope is connected with a cement block whilethe other end is connected with the wire connector; a wire connection opening is formed in one side of the wire connector; a screw-fixed clamp is arranged on the outer surface of the wire connectionopening; a fuse is mounted in the wire connector; the first reversing pulley and the second revering pulley are both mounted on a fixed shaft; the fixed shaft is mounted on a fixed frame; and the fixed frame is fixed on the telegraph pole. The cable buffer apparatus is reasonable in design, and by virtue of the contraction-expansion rods, the problem of changes of cable height and pulling force caused by thermal expansion and cold contraction of the cable can be solved, so that the cable buffer apparatus is suitable for popularization and application.

The invention discloses a water purification membrane, and belongs to the technical field of water purification devices. The water purification membrane is of a three-layer structure which comprises arough filtering layer, a fine filtering layer and a sterilizing layer which are laminated in sequence, water is filtered through the rough filtering layer, the fine filtering layer and the sterilizing layer in sequence, the rough filtering layer is a porous Ti membrane, the fine filtering layer is a nano-photocatalyst material, and the sterilizing layer is nano-silver. By innovatively conductingturbidity removal on the water though the rough filtering layer, decomposing the water through the fine filtering layer, and conducting sterilizing through the sterilizing layer, sterile drinking water with high purity is obtained. The water purification membrane is very simple in structure and very convenient to use, and what is only needed is to put the water purification membrane in a containeropening; meanwhile, energy consumption is not required, and the using cost is very low.

This invention discloses a water-save device for tall building including a waste water tank, a close stool, a sewer piper of the close stool 1. a mainwater supply pipe, a main sewer pipe, a sewer pipe of the close stool 2. and an overflow pipe, among which, the waste tank is connected with the close stool via the sewer pipe 1, the sewer pipe 2 is connected with the main sewer pipe, the overflow pipe is set on the waste water tank which is connected with the main water supply pipe via a water supply pipe with a valve. the advantage is: A family for 3-5 persons can save about 0.2 cubic meter water every day which can obviously reduce their economic burdens.

The invention discloses a craft candle engraving machine. The craft candle engraving machine comprises a square barrel, wherein the square barrel is blocked by a front end cover and a rear end cover, a stepped hole is formed in the front end cover, a bearing is mounted in an outer hole of the stepped hole, and an inner gear ring is mounted in an inner hole; an inner ring of the bearing is matched with a center gear, an ejector pin is arranged in an axis of the inner end surface of the center gear, a gear is further arranged in the position, eccentric with the axis, of the inner end surface of the center gear, and a hand wheel coaxial with the ejector pin is arranged on the outer end surface of the center gear; teeth of the gear are in internal meshing with the inner gear ring; a roll shaft is mounted at the center of the gear, and cutter teeth are arranged on the roll shaft; a round through hole coaxial with the ejector pin is formed in the rear end cover, the round through hole and the ejector pin position a candle; an opening is formed in the lower part of the square barrel. The craft candle engraving machine is simple in structure, convenient to mount and low in cost and doesn't need energy. A craft candle engraved through the machine is applicable to birthday, festivals, weddings, banquets, dancing halls, hotels, restaurants, families and other occasions.

The invention relates to an automatic electric generator which supplies power to electric appliances by using strings to provide power to push a magnet to work. The electric generator is formed by combining a motor, a sensor, a power accumulator, a rectifier, a winding, a power transmission device, a lead, a switch, a driving wheel, and a power device, a transmission device, a reinforcement device, a reduction gear, a generator, and an upper chord device which are matched with the generator. The invention which can replace the prior coal-fuelled generator, fuel generator, wind power generator, water power generator and the like has the advantages that the generator is free from pollution and noises, requires no energy, can continuously work for a long time, is convenient to carry and widein application, and saves time, labor, and money.

The invention provides a pair of electric heating roller skates. A power generating device is arranged in the middle of a sole below a shoe body and enables shoes to heat through the driving of rollers below the shoe body; moreover, the power generating device is a rotor which is also used as a driving wheel and can contact the roller to rotate for generating power; and the upper part of the power generating device is communicated with an electric heating wire in the sole through a telescopic rod. When the electric heating roller skates are used in winter, the rotor contacts the roller by the downward adjusting of the telescopic rod; and when the electric heating roller skates roll and walk, the rotor is driven to generate power which is transmitted to the electric heating wire in the sole to generate heat energy, and then the heat can be generated in the shoes and two feet can not be frozen. The invention has the advantages of science, reasonability, no need of energy sources and effect of warming the roller skates.

The invention provides a preparation method of carbon quantum dots based on a chemical reaction of fructose and sodium hydroxide, and belongs to the technical field of nanomaterials. The method comprises a first step of preparing a D-fructose solution; a second step of preparing a sodium hydroxide solution; a third step of mixing the D-fructose solution with sodium hydroxide solution; and a fourth step of standing the mixed solution to obtain a carbon quantum dot solution. The preparation method is simple and economic, is easy to operate, and has extremely low energy consumption. The prepared carbon quantum dots have high fluorescent intensity, can transform ultraviolet light to green visible light, have no biological toxicity and no pollutions to the environment, and have great application potentiality in in improving conversion efficiency of solar cells and in the fields of biological labels, biological medicine and the like.

The invention discloses a waterlogging preventing method and a system thereof for realizing the orderly water drainage in cities. The waterlogging preventing method is that water flow spiral movement generating devices are mounted at water outlets of water collecting wells of underground pipe networks, and the vortex generating coefficient of the water flow spiral movement generating device which is mounted at the water outlet of the water collecting well at a high position is higher than that of the water flow spiral movement generating device which is mounted at the water outlet of the water collecting well at a high position. The system of the waterlogging preventing method for realizing the orderly water drainage in the cities comprises underground pipe networks for cities, and water collecting wells which are communicated with the underground pipe networks, wherein water flow spiral movement generating devices are mounted at the water outlets of the water collecting wells; the water flow spiral movement generating devices are volute casings, or casing structures which are provided with tangential water inlets, axial water outlets and hollow inner cavities and are in circular truncated cone shapes, cylindrical shapes, inclined circular truncated cone shapes or inclined cylindrical shapes. The method and the system thereof can be used for effectively reducing the equivalent flow passing area of pipelines at the water outlets of the water collecting wells at high-elevation regions and the water flow speed of the inner parts of the pipelines.

The invention discloses a mass center adjustable mixed type vibration damping platform. The mass center adjustable mixed type vibration damping platform comprises top platforms, a bottom platform, vibration damping units and mass center adjusting units, the plurality of vibration damping units are obliquely arranged between the top platforms and the bottom platform, one mass center adjusting unitis arranged between each vibration damping unit and the top platform, and the mass center adjusting units and the vibration damping units are arranged in the same axial direction; the mass center adjusting units comprise upper screw rods, sleeves and connecting rods, through holes are axially formed inside the sleeves, each of the top and the bottom of each through hole is provided with a thread section, the top ends of the upper screws are connected with the top platforms, the bottom ends of the upper screws are in threaded connection with threaded sections at the tops of the through holes, the top ends of the connecting rods are in threaded connection with the threaded sections at the bottoms of the through holes, and the bottom ends of the connecting rods are connected with the vibration damping units. The mass center adjusting units can realize platform mass center adjustment and pose adjustment, so that the mass center of a rigidity center and the mass center of a vibration damping system (including a vibration damping object and a rigid pedestal) are arranged on the same vertical line, and the vibration damping and vibration isolation effect can be greatly enhanced.