882results about How to "Increase volume" patented technology

The present application provides a method for diagnosing and / or evaluating the presence or absence, severity or degree of the improvement of a retinal disease in a subject, which comprises determining and / or evaluating circulatory parameters, retinal function, retina morphology and / or visual relating quality of life (QOL).

The invention discloses a large-volume coke transportation railway open wagon, and relates to the technical field of railway open wagons, the large-volume coke transportation railway open wagon comprises a wagon body, a wagon coupler buffer device, a brake device and a bogie, the wagon body is of a box body structure with an upward opening, and the cross section of the wagon body is in a big-end-down bottleneck shape; the vehicle body comprises a chassis assembly, two side wall assemblies symmetrically arranged on the two sides of the chassis assembly and two end wall assemblies arranged at the two ends of the chassis assembly, and the bottoms of the two side wall assemblies are close to the vehicle limit of the chassis assembly; the cross section of the side wall plate of each side wall assembly is in a broken line shape, and the side wall plate of each side wall assembly is gradually narrowed upwards at the position close to the vehicle limit inflection point. According to the box body structure with the upward opening formed through assembly welding, the cross section of the vehicle body is in a big-end-down bottle opening shape, the side face contour is close to the rolling stock limit, only certain safety allowance is reserved, the cross section area is increased by fully utilizing the limit, and the volume of the vehicle is increased.

The invention relates to the technical field of micro-channel reaction, and discloses a micro-channel polymerization reaction process which comprises the following steps: 1, mixing a monomer, an initiator, a solvent and other additives according to a required ratio, ensuring uniform distribution, uniformly mixing by using a static mixer or an oscillator, and preparing to enter a reactor; 2, feeding the mixed raw materials into a micro-channel reactor through an accurately controlled pump; by arranging the medium inlet, uniformly mixed raw materials are fed into the vertical channels, and a medium sequentially passes through the vertical channels and the connecting channels to complete polymerization reaction. The position of the sliding pipe is adjusted through the adjusting component, the volume of the vertical channel can be dynamically increased, the requirements of fluids with different viscosities are met, meanwhile, the angle of the connecting channel is changed, the fluid path is shortened, the flowability is improved, and the retention time is optimized.

The utility model provides a large-height-difference gravity liquid supply refrigerating system, which relates to the technical field of refrigerating systems and comprises a refrigerating compressor, an oil separator, a condenser, a first liquid storage device, an electric control valve, a gas-liquid separator, a heat exchanger, a second liquid storage device, a stop valve, a filter, a liquid supply electromagnetic valve, an electric control valve, an evaporator, a stop valve for a sensor and the sensor. The device comprises a micro gas-liquid separator, a stop valve, a one-way stop valve and a liquid level switch. According to the high-altitude-difference refrigerating system, the problems of energy consumption caused by a pump liquid supply mode adopted by a traditional high-altitude-difference refrigerating system and excessive refrigerant charge amount caused by multi-time liquid supply can be effectively reduced, and energy conservation and emission reduction are facilitated; the influence of a static liquid column of a large-height-difference gravity liquid supply system on heat exchange of the evaporator can be avoided; the refrigeration tail end adopts an oil-free cold carrying mode, so that the heat exchange efficiency of the evaporator can not be influenced by an oil film; in addition, gravity liquid supply is adopted in the system, the machine room can be arranged on the roof and does not occupy the storeroom volume, and the storeroom volume can be effectively increased.

The rigidity-adjustable air spring comprises a seat body and a leather bag, the seat body comprises a first connecting piece and a second connecting piece, and an air spring structure with an air bag cavity in the middle is defined by the first connecting piece, the second connecting piece and the leather bag; a partition plate is arranged in the middle of the air bag cavity and divides the air bag cavity into an upper air bag cavity and a lower adjusting cavity. At least two capacity increasing cavities are arranged in the lower adjusting cavity, at least one capacity increasing cavity is communicated with the upper air bag cavity, and the internal volume of the capacity increasing cavity can be adjusted; the at least one capacity increasing cavity and the upper air bag cavity can be controlled to be communicated or separated. The internal volume of the air spring can be adjusted and changed, and the rigidity of the air spring can be changed by adjusting the internal volume.

The invention relates to the technical field of household appliances, and discloses a drawer assembly. The drawer assembly comprises a drawer body, a partition plate assembly and a locking device. The drawer body is provided with a dry area and a wet area. The partition plate assembly is arranged in the drawer body in a sliding mode and used for separating the dry area and the wet area, and a mounting interlayer is arranged in the partition plate assembly. The locking device is slidably arranged in a mounting interlayer in the partition plate assembly. The drawer assembly is applied to the refrigeration equipment. In this way, the partition plate assembly can divide the drawer body into the dry area and the wet area, and a user can store articles stored at low humidity and articles stored at high humidity in the dry area and the wet area respectively. Through the arrangement, a user can adjust the sizes of the dry area and the wet area by himself / herself, and the use experience of the user is improved. Meanwhile, the invention further discloses refrigeration equipment.

The invention belongs to the technical field of optical cables, and particularly relates to an optical fiber ribbon optical cable with butterfly-shaped units, the optical fiber ribbon optical cable is provided with an outer protective layer and an inner protective layer, the inner protective layer is located in the outer protective layer, the outer protective layer is composed of four butterfly-shaped units and four outer protective layer side edges, and in the same cross section, the four outer protective layer side edges are located on the four edges of a square respectively. The four butterfly-shaped units are respectively located at four vertex angles of the square, a first U-shaped cavity and a second U-shaped cavity are formed in the inner protective layer, the first U-shaped cavity and the second U-shaped cavity are mutually nested, and an optical fiber ribbon is arranged in at least one of the first U-shaped cavity and the second U-shaped cavity; the optical fiber has the beneficial effects of simple structure, good mechanical property, good optical cable adaptability, high fiber core capacity and the like.

The invention relates to the technical field of vehicles, in particular to a vehicle driving warning sound generation method and device, equipment and a storage medium. Environment bottom noise data is obtained through real-time collection and analysis, and a frequency band possibly generating a masking effect on the generated warning sound is judged according to the data; in particular, the system recognizes the frequency bands influenced by the masking effect according to the spectral characteristics of the environmental noise, and increases the volume of the frequency bands in a targeted manner to ensure that the warning sound can be effectively transmitted to pedestrians, and in addition, the system also can give the warning sound to the pedestrians according to the actual driving scene of the vehicle. According to the method, the most appropriate warning sound frequency band and gain parameters can be intelligently selected to adapt to different acoustic environments, such as an underground garage or an open parking lot, so that the pedestrian warning effect when the electric vehicle runs at a low speed is remarkably improved.

The invention relates to the technical field of loading equipment, in particular to a quantitative loading system which comprises a feeding device, a quantitative bin, a weighing sensor and a weighing controller, the feeding device is installed at a bin opening in the bottom of a stock bin, the quantitative bin is arranged on the lower portion of the feeding device, the quantitative bin is connected with a foundation through the weighing sensor, and the weighing controller is connected with the weighing sensor. The weight of the quantitative bin is measured through the weighing sensor, the weighing sensor is electrically connected with the weighing controller, the feeding device comprises a feeding gate, the feeding gate controls feeding into the quantitative bin, a discharging gate is arranged at the lower end of the quantitative bin, and materials in the quantitative bin can be discharged when the discharging gate is opened. The weighing precision is high, the stability is good, the first quantitative bin and the second quantitative bin which are independently arranged are arranged in this way to conduct quantitative weighing and loading in a circulating mode, the loading efficiency is high, the double-quantitative-bin structure of the quantitative bin moving mechanism is adopted, the height of the feeding device is reduced, and the requirement for the installation space is lowered.

The invention relates to the technical field of marinated product detection and sampling, and discloses a marinated product processing sanitary safety detection brine sampling device which comprises a plurality of rotating supports installed on a base, one end of each rotating support is connected with a sampling mechanism, the base is provided with an operating rod capable of moving vertically, and the operating rod is used for driving the rotating supports to rotate. The sampling mechanism comprises a sampling barrel movably connected to the rotating support and a capacity regulation and control assembly arranged in the sampling barrel, and the capacity regulation and control assembly comprises a rubber sheet fixedly connected with a barrel body. When the rotating support drives the sampling barrel to move downwards, the pull rope drives the valve plate to leave the barrel cover and drives the tip of the rubber sheet to be arranged upwards at the same time, so that the internal volume of the barrel is reduced, and when the barrel is full of brine and the rotating support rotates reversely, the valve plate abuts against the barrel cover, and meanwhile the tip of the rubber sheet is arranged downwards, so that the internal volume of the barrel is increased. The liquid level of the brine is lower than the port of the barrel, so that quantitative brine can be quickly obtained, and the brine is prevented from overflowing.

The invention discloses a comprehensive utilization method and system for high-value organic wastes and adjustable target products, and belongs to the technical field of resource utilization of organic wastes. The system comprises gasification and carbonization equipment, an afterburning type waste heat boiler, a gas generator set, steam explosion equipment, activated carbon preparation equipment, anaerobic fermentation equipment, a methanol preparation system, flue gas waste heat recycling equipment, an ammonia gas preparation system, biomass charcoal pure oxygen combustion equipment, a green hydrogen preparation system and a biodiesel preparation system. The three technologies of gasification carbonization, steam explosion and anaerobic fermentation are coupled, the treatment efficiency is greatly improved, deep resource utilization of organic solid waste and organic wastewater is achieved through the same set of equipment, the equipment investment is reduced, and the occupied area is reduced; biomass green electric power generated by the gas generator set is used for splitting water to produce hydrogen and oxygen; and secondary gradient utilization and material reutilization of the waste heat of the flue gas are realized.

The utility model discloses a portable sound box and a vehicle with the same, the portable sound box is provided with an installation part used for being detachably connected with a vehicle body, the portable sound box is provided with an insertion part, the portable sound box is configured to be suitable for being electrically connected with the vehicle through the insertion part, the portable sound equipment forms a part of the vehicle-mounted sound equipment when being connected with the vehicle, and the portable sound equipment is independent sound equipment when being separated from the vehicle. According to the portable sound box provided by the utility model, the portable sound box and a vehicle can be conveniently and efficiently installed, fixed and separated through the installation part and the insertion part, and the insertion part can enable the portable sound box and a sound box system of the vehicle to be fused or the portable sound box is more convenient to use as an independent sound box.

The invention discloses a moving coil and moving iron combined ultrathin external damper-driven loudspeaker, which comprises a basin stand, an elastic sheet, a vibration assembly and a magnetic assembly, and is characterized in that the vibration assembly comprises a voice coil, cone paper and a damper, the cone paper is connected with the voice coil but not connected with the basin stand, the damper is connected between the cone paper and the basin stand, and the elastic sheet is arranged between the cone paper and the basin stand. The damper is exposed out of the basin stand; the magnetic assembly is connected to the basin frame through the elastic sheet and can vibrate relative to the basin frame. The cone frame and the cone paper are connected through the external damper, so that an ultra-thin structure can be realized; and the magnetic assembly and the voice coil vibrate together, so that the driving force can be greatly improved.

The invention relates to the technical field of acoustic equipment, in particular to a bone conduction sound production pad and a bone conduction sound production soft package object. In the bone conduction sound production pad, the sound production ends of the plurality of bone conduction sound production bodies are connected through the connecting units, and then the sound production points of the plurality of bone conduction sound production bodies are connected to form a sound production surface, so that scattered vibration point sound production is converted into surface sound production of the sound production surface; therefore, sound waves output by the sound production points are linearly propagated along the connection direction of the first strip-shaped structures and / or the second strip-shaped structures in the connection units, the phenomena of refraction and reflection are less, interference among the sound waves is reduced, the volume balance is improved, the harmonic distortion is reduced, and the sound quality is improved. Besides, as the bone conduction sound production pad is placed inside the soft package body or at the bottom of the outer side of the soft package body, the bone conduction sound production pad has certain hardness and can play a certain role in supporting the pressed soft package body, the situation that the filler in the soft package body deforms after the soft package body is stressed is relieved, and the tone quality is further improved.

The utility model discloses an air-breathing smoke-sensing fire alarm device, and relates to the technical field of fire alarm. The flash lamp comprises a mounting plate, a shell is fixedly connected to the front face of the mounting plate, a flash assembly is arranged on the front face of the shell, an air inlet is formed in the right side of the shell, a flowing pipe is fixedly connected to the inner wall of the shell, and an air outlet is formed in the left side of the mounting plate; a rotating ring is fixedly connected to the back face of the flash cover, and a round hole is formed in the front face of the shell. According to the utility model, the bell is arranged, specifically, the rotating ring can drive the knocking block to rotate together during rotation, the bell is knocked after the knocking block is in contact with the bell, so that vibration and sound production are generated, the bell can be continuously knocked and sound can be produced by such reciprocating operation, and the volume can be increased by the knocking mode, so that surrounding people can be better reminded; the warning effect can be effectively achieved in a noisy area with few crowds, and safety is improved.

The invention discloses an on-line intelligent spiral sampling device for machine-made sand. The on-line intelligent spiral sampling device comprises a sampling barrel main body, a fixing plate is installed at the tail end of the sampling barrel main body, a motor protection box is installed on the fixing plate, a spiral conveying mechanism is arranged on the sampling barrel main body, and a sampling screening mechanism is arranged on the sampling barrel main body; the spiral conveying mechanism comprises a drill bit, a driving motor, a rotating shaft and an intermittent conveying part; the intermittent conveying part is used for intermittently conveying machine-made sand; the sampling and screening mechanism comprises a discharging pipe, a lifting part, a screening part and a vibrating part, the discharging pipe is communicated with one side of the bottom of the sampling barrel main body, the screening part screens the machine-made sand according to the size, and the vibrating part vibrates the screening part so that the machine-made sand can conveniently penetrate through the screening part. The machine-made sand sampling device has the beneficial effects that the phenomenon of material blockage is avoided, the discharging efficiency is improved, the sampling efficiency is improved, machine-made sand can be detected in the sampling process, the working efficiency is improved, and the labor intensity of workers is reduced.

The utility model relates to the field of film laminating machines, and discloses an automatic soil covering and film laminating machine which comprises a bottom frame mechanism, lifting transmission mechanisms are arranged on the two sides of the top end of the bottom frame mechanism, and a main transmission mechanism, the lifting transmission mechanisms, a lifting mechanism, an impurity discharging mechanism and the like are arranged. The cutter head mechanism is located at a proper soil taking height by adjusting the heights of the front wheels and the rear wheels, power drives the cutter head mechanism to rotate through the main transmission mechanism, soil taking is started at the moment, mulching soil is thrown into the lifting mechanism under the action of centrifugal force, the main transmission mechanism drives the lifting mechanism to rotate through the lifting transmission mechanism, and the mulching soil is lifted to a high position. And then, the impurity removal transmission mechanism drives the internal mechanisms, impurities such as large soil blocks and grass roots are discharged through the impurity removal mechanism, the filtered film mulching soil falls to a proper position needing to be covered with soil through the soil falling mechanism, the position height is adjusted through the oil cylinder telescopic mechanism, and two mulching films are covered with soil at the same time through a plurality of outlets of the soil falling mechanism.

The invention discloses a low GI functional bread, and relates to the technical field of food processing. The low GI functional bread includes the following weight portions of cereal raw materials, auxiliary materials and fruit raw materials: 40-50 weight portions of barley, 20-25 weight portions of white highland barley, 15-25 weight portions of buckwheat; 10-15 weight portions of butter; 10-15 weight portions of salt; 0.75-1 weight portions of dry yeast; 5-9 weight portions of apples, and 5-11 weight portions of fresh peaches. The present invention also includes a preparation method of low GI functional bread. The present invention selects low GI content cereal raw materials and fruit raw materials to make low GI bread, which helps to relieve constipation, make people feel full, and improve the functionality of low GI bread; when the rotating roller is pressed in the groove, the sliding part is driven down under the action force of the reset spring, so that the sealing plate blocks the discharge port, and intermittent flour laying is realized on the conveyor belt, which effectively prevents the bread from being connected to the conveyor belt, improves work efficiency, and saves the use of flour.

The utility model discloses a telescopic stirring and mixing paint mixing processing device which comprises a bottom plate and a first tank body, one side of the upper surface of the bottom plate is fixedly connected with a mounting frame, and one side of the inner wall of the mounting frame is rotatably connected with a worm; a sleeve is fixedly connected to one side of the upper surface of the bottom plate, a threaded rod is arranged on one side of the inner wall of the sleeve, a worm gear is rotationally connected to one side of the outer surface of the sleeve, and the worm gear is in threaded connection with the threaded rod. According to the telescopic stirring and mixing paint mixing processing device, through the arrangement of a worm, a worm gear, a threaded rod and a sleeve, when the volume of the tank body needs to be increased, a crank is held by a hand and rotated, the worm can be driven to rotate, the worm gear can be driven to rotate through rotation of the worm, and therefore the volume of the tank body can be increased through the acting force of the worm gear; the threaded rod can be adjusted out of the sleeve, and finally, the sliding block can drive the second tank body to be adjusted upwards, so that the volume of the tank body is increased.

The embodiment of the utility model provides a battery monomer, battery and electric device, the battery monomer includes shell and pole, shell includes first wall portion and second wall portion, first wall portion and second wall portion are adjacent to each other, first wall portion includes first main part and first projection portion, and second wall portion includes second main part and second projection portion. The first protruding part protrudes out of the outer surface of the first main body part in the thickness direction of the first wall part; the second wall part comprises a second main body part and a first extending part, the first extending part is located on the side, close to the first wall part, of the second main body part, the first main body part is connected with the second main body part, and the first protruding part is connected with the first extending part to form a protrusion on the surface of the shell; the pole is arranged on the protrusion. According to the battery monomer disclosed by the embodiment of the utility model, the volume of the bulges can be increased, so that the capacity of the battery monomer can be improved, the space utilization rate in the battery monomer can be improved, and the bulges can be arranged even under the condition that the size of the battery monomer is relatively small.

The utility model discloses a high-yield Australian freshwater lobster breeding device which comprises a breeding bin used for being placed in a pond, an opening is formed in the breeding bin, a movable channel communicated with the pond is arranged in the breeding bin, and a simulated ecological grillwork is placed in the movable channel. The bionic grillwork is of a honeycomb-shaped structure formed by connecting a plurality of connecting pieces, and a crawling channel is formed in each connecting piece. According to the culture device, the activity area of cherax quadricarinatus is enlarged on the basis of the culture area of an original pond, the culture quality of the cherax quadricarinatus is guaranteed, meanwhile, the culture putting amount can be increased, and the yield is increased; in addition, the number of ponds and the volume of the ponds do not need to be increased, the breeding cost is reduced, and application and popularization are facilitated.

The utility model discloses a double-injection urea pump and an injection system, and relates to the technical field of engine tail gas treatment. Comprising a pump body; the pump body is provided with a liquid suction cavity, a liquid inlet cavity and a liquid discharge cavity; a diaphragm is arranged in the liquid suction cavity; a first sealing structure is arranged between the liquid suction cavity and the liquid inlet cavity, and a second sealing structure is arranged between the liquid suction cavity and the liquid discharge cavity; the first sealing structure is configured to be opened so that urea can enter the liquid suction cavity through the liquid inlet cavity when the diaphragm deviates from the liquid suction cavity and negative pressure is formed in the diaphragm. The second sealing structure is configured to be opened when the diaphragm compresses the liquid suction cavity to form positive pressure in the liquid suction cavity, so that urea is discharged out of the liquid suction cavity through the liquid discharge cavity; only the diaphragm is arranged in the liquid suction cavity in the pump body, and structures such as a valve element and a valve plate are not arranged, so that the structure is simplified, the internal volume of the liquid suction cavity is increased, and the double-spray flow of urea is improved.

The invention relates to the technical field of high-pressure containers, in particular to a gas storage structure, a gas storage bottle and a manufacturing method of the gas storage structure. In the gas storage structure, a straight cylinder section is arranged between two end socket sections; the straight cylinder section is provided with a straight cylinder section end part connected with the end socket section, the end surface, deviating from the straight cylinder section, of the straight cylinder section end part is provided with a first step surface, a second step surface and a first slope surface, the first step surface, the second step surface and the first slope surface are sequentially connected, and the first step surface and the second step surface are connected to form a first step structure; the end socket section is provided with an end socket section end connected with the straight barrel section, the end face, away from the end socket section, of the end socket section end is provided with a third step face, a fourth step face and a second slope face, the third step face, the fourth step face and the second slope face are sequentially connected, and the third step face and the fourth step face are connected to form a second step structure; the first step surface is welded with the third step surface, the second step surface is welded with the fourth step surface, and the first slope surface is welded with the second slope surface.

The invention discloses a remediation device for groundwater pollution abatement, and relates to the technical field of groundwater pollution abatement, the remediation device comprises a supporting base, a supporting column is fixedly mounted on the upper surface of the supporting base, a remediation treatment pond for remediating groundwater is arranged on the supporting column, and a first water suction pump is arranged on the remediation treatment pond; the output end of the first water suction pump is connected with a water outlet pipe, the water outlet end of the water outlet pipe extends into the remediation treatment pond, the input end of the first water suction pump is connected with a water inlet pipe, and the water inlet end of the water inlet pipe extends into underground water and is connected with a water taking device; the water taking device comprises a balance disc, a sealing sleeve is arranged in the center of the bottom of the balance disc, a connecting sleeve is arranged in the sealing sleeve, and the water inlet end of the water inlet pipe penetrates through the balance disc and is communicated with the connecting sleeve. The device has the effect of effectively converging and guiding underground water from different directions, so that the water collection efficiency is improved.

The invention relates to the technical field of paper product processing, and discloses a paper product processing anti-blocking device which comprises a sleeve shell, the sleeve shell further comprises a pushing device, the pushing device comprises a pushing structure and a volume expansion structure, the pushing structure comprises a driving motor, a rotating shaft, a chain wheel and a scraper, the driving motor is arranged on the left side of the sleeve shell, and the rotating shaft is arranged on the right side of the sleeve shell. The rotating shaft is rotatably connected to the right side of the driving motor, the chain wheel is in transmission connection to the surface of the rotating shaft, the scraping plates are fixedly connected to the two sides of the chain wheel, the volume expansion structure comprises telescopic plates, through grooves, sliding locks, telescopic side plates and U-shaped base plates, the telescopic plates are slidably connected to the inner sides of the scraping plates, and the through grooves are formed in the inner sides of the scraping plates. The device has the characteristics that the capacity can be adjusted, a large amount of materials can be conveyed, the material conveying efficiency is high, and blockage is avoided.

The invention discloses a railway hopper car for transporting powdery goods, which relates to the technical field of railway hopper cars, and comprises a car body, a pneumatic control system, a car coupler buffer device, an air brake device, a manual brake device and a bogie, the vehicle body comprises a bottom frame, two funnels with double-sealing structures are arranged at the bottom of the bottom frame and distributed on the two sides of a middle beam of the bottom frame, two side walls are arranged on the two sides of the bottom frame, end walls are arranged at the two ends of the two side walls respectively, a vehicle roof is arranged on the upper portions of the side walls and the end walls, and unloading openings are formed in the bottoms of the funnels. A turnover type bottom door with a secondary locking device is arranged at the unloading opening, and the car roof comprises a fixed top cover assembly and a movable top cover assembly arranged over the fixed top cover assembly. The hopper car side wall is reasonable in design, and the problems that the hopper car side wall cannot give consideration to strength and space, a top cover is clamped, a bottom door is prone to being accidentally opened and sealing performance is poor are solved.

The diaphragm compressor comprises a cylinder cover, a cylinder body, a diaphragm, a plunger and a driving mechanism, the diaphragm is a shape memory alloy part, a cavity is formed between the cylinder cover and the cylinder body, the diaphragm is arranged in the cavity and divides the cavity into an air cavity and an oil cavity, the air cavity is used for being communicated with an air pipe, and the oil cavity is used for being communicated with an oil pipe. A channel communicated with the cavity is further formed in the cylinder body, the plunger is movably arranged in the channel, and the driving mechanism is used for driving the plunger to move in the channel so that the diaphragm can deform under the action of hydraulic oil in the oil cavity. The diaphragm is the shape memory alloy part, and compared with common metal, the shape memory alloy part has larger deformation amount of recoverable deformation, so that the requirement of the deeper cavity on the deformation amount of the diaphragm can be met, and the volume of the cavity is further increased. Moreover, as the deformation amount of the shape memory alloy part is larger, the diaphragm is not easy to crack under the working condition of fatigue operation, so that the reliability of the compressor is improved.

The utility model discloses a car roof water tank which comprises a tank body, a water baffle is arranged in the tank body, a buffering opening is formed in the water baffle, and a water inlet and a water outlet are formed in the tank body. And the fixing frame is fixedly connected with the box body and is used for fixing the box body on a car roof. According to the roof water tank disclosed by the utility model, the flowing distance of water is reduced, the buffering opening in the water baffle is used for guiding the water to flow, the impact of the water is reduced, and the vibration effect of the stored water in the driving process of a vehicle is reduced.

The present invention belongs to the technical field of building water supply and drainage, and discloses an energy-saving building water supply and drainage device and a working method thereof, including a sewage tank, a sewage pipe 1 and a sewage pipe 2, a drainage hole is opened on the right side of the top of the sewage tank, a cover plate is pressed and installed on the top of the sewage tank, a water inlet pipe, a feeding pipe and a drainage pipe are fixedly installed on the top of the cover plate, a partition is slidably installed in the inner cavity of the sewage tank, and the interior of the sewage tank is divided into a sedimentation chamber and a precipitation chamber by the partition, and a sealing cylinder is fixedly installed in the sedimentation chamber. This device reduces the liquid level of sewage in the inner cavity of the sedimentation chamber in disguised form, and at the same time, the partition moves to the right to the right side of the overflow hole 1, and the overflow pipe 2 performs the overflow function. This design synchronously changes the volume of the sedimentation chamber by matching the partition-induced sewage pressure and the elastic potential energy of the spring 2, and realizes the maximum efficient sewage treatment volume of the sedimentation chamber per unit time.

The novel brushless electronic water pump comprises a shell, a stator assembly and a rotor impeller assembly, an impeller of the rotor impeller assembly comprises a first impeller plate, a second impeller plate and blades, a center water inlet pipe opening is formed in the center of the first impeller plate, the blades divide a fluid driving cavity into a plurality of circulation channels, and a water inlet pipe opening is formed in the center of the second impeller plate. A water outlet window is formed in the outer contour between the first impeller plate and the second impeller plate, the second impeller plate is provided with a rotor shaft sleeve, a rotor magnetic ring assembly is arranged on the rotor shaft sleeve, the blades comprise a plurality of long blades and short blades, every two long blades and one short blade or each long blade and one short blade form a blade set, and the blades are arranged in the blade set. The blade sets are evenly distributed around the center circumference of the center water inlet pipe opening, the short blades are located between the two long blades in the same set, and the short blades spirally extend to the outer contour of the water pump impeller from the middles of the long blades. The rotor impeller assembly of the brushless electronic water pump can further improve the efficiency.