51 results about "Water efficiency" patented technology

The invention relates to the technical field of flood forecasting, in particular to a flood forecasting error real-time correction method and system, and the method comprises the steps: obtaining data under a unified time reference, calculating a water purification head, and obtaining the instantaneous flow; inquiring the theoretical efficiency, calculating the actual measurement efficiency, and carrying out difference calculation to obtain an electricity-water efficiency residual error; evaluating the electricity-water efficiency residual error to obtain a stability index; judging an operation phase, and calculating the confidence coefficient of the operation phase according to the stability index; generating a correction vector and correcting the uncorrected process line to obtain a corrected process line; projecting the correction process line according to a preset engineering feasible region to obtain first correction output; performing online checking and incremental correction on the first correction output to obtain final correction output; and updating the model initial state and the boundary condition of the next time window according to the final correction output. According to the method, the problem of error accumulation caused by phase misjudgment under the hysteresis effect and field disturbance of a traditional method is solved, and the real-time accuracy of flood forecasting is remarkably improved.

The invention discloses an irrigation decision method based on climate time sequence analysis and a crop growth model, and the algorithm process comprises the steps: processing multi-scale meteorological data through employing a climate perception prediction yield model of a double attention mechanism based on agent guidance in a first stage (yield prediction); the model comprises a cross-space attention module optimization spatial feature selection and agency intensified attention mechanism fusion long-term and short-term meteorological knowledge, and accurate yield prediction is realized. In the second stage (irrigation decision), the prediction output of the first stage is analyzed by using an integral gradient, the core meteorological variable weight of each growth period is quantified, and the month-meteorological-yield dynamic risk weight is constructed. The state space of reinforcement learning is composed of meteorological factors, irrigation volume and crop physiological states; and a Pareto optimization reward function is adopted to coordinate the dynamic risk, yield and water efficiency, and optimal irrigation strategy learning is driven. According to the invention, meteorological risk collaboration and water efficiency balance are driven, and powerful support is provided for precise irrigation and yield improvement.

The application belongs to the technical field of drain valves, and discloses a time-delay valve core, a time-delay drain valve applying the same and a sanitary ware, wherein the time-delay valve core comprises: a body provided with a water inlet area, a water control flow channel and a water passing area, the water control flow channel being communicated between the water inlet area and the water passing area; a first adjusting member rotatably installed on the body, the water control flow channel being configured to change the water discharge flow to the water passing area with the rotation of the first adjusting member; and according to the water discharge requirement of a product, the water discharge flow of the water control flow channel is adjusted by using the first adjusting member, so that the adjustment of multiple water efficiency is realized, and the time-delay valve core is suitable for different water products. The whole structure is simple, the adjustment is convenient, and the applicability is wide.

The present application relates to a kind of cleaning machine and cleaning method, including tank and slag basket, tank bottom wall is provided with the recess being arranged around the outer periphery of drain, the recess is provided with heating element for heating water, the heating element is the annular structure that will drain and slag basket are surrounded therein.The present application is provided with recess around the outer periphery of drain and slag basket, and heating element is arranged in the bottom of recess, recess is used as water return area on the one hand, greatly reduce the volume of water return area, it is favorable to improve water return efficiency and the energy efficiency, water efficiency of cleaning machine, on the other hand, the bottom of recess is directly contacted with heating element, not only it is favorable to improve the heating efficiency of washing water, but also, a small amount of water in recess can be heated to produce steam, dish is prewashed with steam, steam diffuses from bottom to top in tank, need not set up independent air inlet structure, it is convenient for production and assembly, it is favorable to diffusion uniform, eliminate steam pre-cleaning dead angle, improve cleaning effect.

The application relates to a control method of a washing machine and the washing machine, and relates to the technical field of washing machines. The washing machine comprises an electrolytic water program. The control method comprises the following steps: in the electrolytic water program, the PH value of washing water and electrolytic water power are obtained; the electrolytic water rate is determined according to the PH value of the washing water; whether the electrolytic water power and the electrolytic water rate satisfy a preset relationship is judged; and the adjustment time of the electrolytic water power and the adjustment time of the electrolyte concentration are determined according to the judgment result. The adjustment time of the electrolytic water power and the adjustment time of the electrolyte concentration are determined, the electrolytic water power or the electrolyte concentration is reasonably adjusted in the electrolytic water process, the electrolytic water rate is improved, the electrolytic water time is shortened, the electrolytic water efficiency and the sterilization capacity of the electrolytic water solution are improved.

The present application relates to a kind of COF-316 / Pt@TpBpy-COF composite material preparation and photocatalytic decomposition of water.The present application provides a new COF-316 / Pt@TpBpy-COF composite material, to solve the problem of low light utilization and electron hole easy recombination when existing TpBpy-COF photocatalytic decomposition of water.Method: one, the preparation of Pt NPS;Two, the preparation of COF-316;Three, the preparation of COF-316 / Pt@TpBpy-COF composite material.The preparation process of the present application is simple and effective, reagent consumption is less and performance is high;And the photocatalyst provided by the present application can effectively improve the problem of low photocatalytic decomposition of water efficiency.The present application is applied to the field of photocatalytic decomposition of water, and experiment shows that the composite material has excellent photocatalytic decomposition of water performance, and the decomposition water hydrogen production rate can reach 220.4 μmol·h ‑1 ·g ‑1 Under visible light irradiation, and the oxygen production efficiency is 101.5 μmol·h ‑1 ·g ‑1 .

The invention discloses a water purifier which comprises a raw water inlet, a pure water outlet and a wastewater discharge outlet, the filter unit comprises a shell and a reverse osmosis membrane element arranged in the shell, a raw water port, a pure water port and a wastewater port are formed in the shell, the pure water outlet can be communicated with the pure water port, and the wastewater discharge port can be communicated with the wastewater port; the booster pump is arranged between the raw water inlet and the raw water port, and the booster pump is used for driving water flowing in from the raw water inlet to enter the filtering unit; the water purifier comprises a non-water supply state and a water supply state, the water supply state comprises a first stage and a second stage, in the first stage, pure water filtered by the reverse osmosis membrane element is controlled to flow out from the pure water outlet, and meanwhile, the reverse osmosis membrane element is controlled to discharge no wastewater from the wastewater discharge port. According to the water purifier provided by the invention, the actual water efficiency of the water purifier can be effectively improved on the premise that the TDS climbing prevention effect and the scaling risk prevention effect of the water purifier are not influenced.

The utility model belongs to the technical field of water electrolysis, and particularly relates to a water electrolysis device which comprises a first electrolysis electrode, a second electrolysis electrode, an electrolysis power source and an intermediate conductor, an electrolysis gap is reserved between the two electrolysis electrodes, and the intermediate conductor is arranged between the two electrolysis electrodes as a conductive medium. The electrolysis current between the two electrolysis electrodes is conducted through water in the electrolysis gap and the middle conductor so as to electrolyze the water in the electrolysis gap, and the two electrode carriers can rotate relatively; the utility model further provides an electrolyzed water washing machine using the electrolyzed water device, the first electrode carrier is a washing impeller, and the second electrode carrier is a washing inner barrel. According to the water electrolysis device, the effective electrolysis action area of the water electrolysis device is increased, meanwhile, the problem that bubbles generated by an existing water electrolysis device are prone to being attached to electrolysis electrodes is solved, the water electrolysis efficiency is improved, and therefore the water electrolysis efficiency of the water electrolysis washing machine is improved, and the stain removal and sterilization effects are improved.

The utility model relates to the technical field of electrode shell equipment cooling, in particular to an electrode shell equipment cooling water cooling device which comprises a cooling bin. Two partition plates are fixedly connected to the left end and the right end of the inner wall of the cooling bin, steel plates are fixedly connected to the ends, close to each other, of the two partition plates, and first groove bodies are formed in the upper ends and the lower ends of the steel plates in a penetrating mode. When cooling water flows into the steel plate, heat of the cooling water is transmitted to the heat dissipation fins through the heat conduction strips on the steel plate, and then the heat dissipation fins are subjected to heat dissipation work through starting of the fans on the heat dissipation fins, so that the cooling water is primarily subjected to heat dissipation work; and then the flowing time of the cooling water is prolonged and the contact area during flowing is increased in the cooling water flowing process through the subsequent cooling flowing assembly, so that the work of secondary heat dissipation is achieved, and the problems that the cooling water of the motor shell equipment is low in cooling water efficiency, energy-saving and environment-friendly are solved.

This invention relates to the field of water efficiency testing technology, specifically to an intelligent configuration device and method for water efficiency testing solutions based on water purifiers. The device includes a mixing unit and a water tank. The water tank has a rotating structure, and its interior is vertically divided into an upper zone, a middle zone, and a lower zone. The water tank is equipped with: a circulation pipe, with both ends connected to the upper part of the upper zone and the lower part of the lower zone respectively; a pump body, mounted on the circulation pipe, for pumping the test water from the lower zone back to the upper zone through the circulation pipe; an outlet, located on the side wall of the water tank, with the outlet's horizontal height within the vertical height range of the middle zone; and concentration sensors, one above and one below the outlet, for detecting the concentration of the test water. This invention achieves dynamic control of the test water concentration, avoiding uneven concentrations.

The application relates to the field of new energy and energy-saving technology, in particular to a front mixed water heat exchange device of an improved TOKAMAK test system, which comprises a mixed water heat exchange tank and a jet pump, a rotating injection water distribution mechanism, a shunt cylinder and a heat exchange inclined fin are arranged in the innermost sleeve of the mixed water heat exchange tank. The application is based on the original chilled water and chilled water circuit, a balance cooling water injection circuit is branched from the chilled water, the end pressure of the chilled water main circuit is balanced, the cooling water is pre-cooled, an auxiliary circuit is branched from the cooling water to sufficiently absorb the cold energy of the chilled water in the injection circuit, and the three circuits of the main cooling circuit of the mixed cooling water and chilled water are cooled and mixed through the improved mixed water heat exchange tank. The concentrated water flow of the original device into the water tank is divided into multiple water flows through the triangular weir shunt cylinder, the noise in the operation of the original device is reduced, the reliability of the original device is increased, the mixed water efficiency is improved, and the device is convenient to maintain.

The application discloses a purifying and filtering mechanism for hydrogen production electrolysis water, which comprises a treatment box, a liquid inlet pipeline for conveying electrolysis water is connected to the treatment box, a softening treatment assembly is arranged in the treatment box, the softening treatment assembly comprises a conveying cylinder arranged in the treatment box, the conveying cylinder is located at the side end of the conveying pipeline, an inclined hole is formed through the inner wall of the conveying pipeline connected with the conveying cylinder, the input end of the conveying cylinder is connected with a softening agent cylinder through a pipeline, and the output end of the conveying cylinder is connected with the inclined hole. When the electrolysis water flows into the treatment box through the liquid inlet pipeline, the purifying and filtering mechanism for hydrogen production electrolysis water can realize automatic mixing of the softening agent and the electrolysis water, effectively remove calcium and magnesium ions in the water, avoid blockage of hydrogen production equipment caused by scale formation in the later period, prolong the service life of the equipment, and improve the overall electrolysis water efficiency through the input end one-way valve to supplement the softening agent from the softening agent cylinder.

The invention provides a dishwasher comprehensive energy efficiency and water efficiency testing device and method.The dishwasher comprehensive energy efficiency and water efficiency testing device comprises a base, a dishwasher body and a visual monitoring unit, an electric control cabinet, a testing cabin and a constant-temperature water tank are sequentially installed on the base from right to left, the dishwasher body is arranged in the testing cabin, and the water inlet end of the dishwasher body is connected with a water inlet pipe; the drainage end of the dish-washing machine body is connected with a drainage pipe, sensor mounting plates are fixed to the upper portions of the inner walls of the ends, close to the dish-washing machine body, of the water inlet pipe and the drainage pipe, and a flow sensor, a temperature sensor and a pressure sensor are sequentially mounted below the two sensor mounting plates from left to right. Compared with the prior art, real water temperature and pressure are simulated through a controllable pipeline, the problems that an original testing device is dispersed in function and cannot simulate real and complex working conditions are solved, and the testing accuracy and the working condition coverage degree of the testing device are improved.

The present application relates to a new type of pressure suction type solid-liquid separator and its coal slime water treatment system and method. In order to overcome the defects of the prior art. The new type of pressure suction type solid-liquid separator includes a belt vacuum filter, a pressurizing machine, a first feeding tank, a filter cake turnover mechanism and a second feeding tank. The filter cake turnover mechanism includes a plurality of plow-shaped plates and a crossbeam. Each plow-shaped plate is attached to the upper surface of the filter cloth. A vertical plate is connected to the middle of each plow-shaped plate. The top of the vertical plate is fixed to the crossbeam. The filter cake coming from the upstream of the filter cake turnover mechanism moves with the filter cloth. When passing through the filter cake turnover mechanism, all or part of the filter cake passes through the front end of each plow-shaped plate and turns over under the guidance of the plow-shaped plate. After turning over, the filter cake is mixed with the feed of the second feeding tank and enters the pressure suction dewatering area. The present application can greatly increase the slurry feed quantity, improve the filter water efficiency, reduce the equipment and accidents, and reduce the power consumption, and is suitable for use in coal preparation plants.

The utility model discloses a cultivation container for boletus aereus cultivation, which relates to the technical field of boletus aereus cultivation and comprises a shell, a plurality of planting frames distributed in an annular array are arranged in the shell, two symmetrically distributed lighting lamps are fixedly mounted on the upper surface in the shell, a swing pipeline is rotatably mounted on the upper portion of the shell, and the swing pipeline is communicated with the planting frames. A plurality of spraying heads distributed at equal intervals are fixedly installed on the lower portion of the swing pipeline, a driving frame is fixedly installed in the middle of the swing pipeline, a rotating disc is rotatably installed on the upper surface of the interior of the shell, a driving rod is slidably arranged on one side of the rotating disc in a penetrating mode, and one side of the driving rod is slidably clamped to the outer surface of one side of the driving frame; according to the device, when the boletus aereus is wetted with water, the swing pipeline can flexibly swing within a preset range, it is ensured that water mist can uniformly cover the whole culture medium layer, the water wetting efficiency is improved, and it is also ensured that the boletus aereus obtains sufficient and uniform water supply in the growth process.

The proposed useful solution involves a new actively machined flat tube configuration with teardrop-shaped indentations on the surface, aimed at improving heat transfer and heat-water efficiency in heat exchangers. The flat tube has a cross-sectional area of ​​axb mm, with a size ratio a / b = 0.4-0.6. The inner surface of the tube has teardrop-shaped indentations; each indentation has a relative length Ld / a = 1.0-1.5, a relative width dd / a = 0.4-0.6, and a relative depth hd / a = 0.1-0.2. The indentations have a rounded head and a tapered tail in the direction of flow. The indentations are distributed along the two flat surfaces of the tube, with a relative distance between them S / a = 2-4. The direction of the indentations is aligned with the main flow direction to reduce flow separation and limit the formation of vortices behind the tube. The tube configuration with teardrop-shaped indentations enhances heat transfer by 7.9-54.7%, and the maximum thermohydraulic efficiency reaches 1.035 when using a smooth tube as a reference.Therefore, this solution is a useful option that can be considered for application in pipe fabrication and in practical heat exchanger applications.

A novel dehumidifier comprises a shell, and a heat exchange system, a drainage system and a fan assembly are arranged in the shell. The heat exchange system comprises an evaporator and a condenser, a compressor is further arranged in the shell, an exhaust pipe and an air return pipe are connected to the compressor, the other end of the exhaust pipe is connected with the condenser, and the other end of the air return pipe is connected with the evaporator; a first capillary tube and a second capillary tube are arranged between the evaporator and the condenser in a crossed mode. According to the novel dehumidifier, the first capillary tube and the second capillary tube are arranged between the evaporator and the condenser, and a condensing agent in the condenser is distributed into the evaporator in a crossed mode through the first capillary tube and the second capillary tube, so that surface heat exchange between the condenser and the evaporator is more uniform; therefore, the condensation water efficiency of the surface of the evaporator can be improved, the dehumidification amount is increased, and the heat exchange efficiency of the condenser is improved, and meanwhile, the product has the high-temperature-resistant performance through heat exchange of the fan assembly.

The utility model provides a kind of draining device, belong to food processing technical field, including outer bowl and the inner bowl of hinged setting in outer bowl, there is interlayer space between inner bowl and outer bowl, filter hole is set on inner bowl, sliding plate, its sliding is set in interlayer space;Plugging cone, it is set on the side of sliding plate close to sliding plate, plugging cone can seal filter hole after sliding plate moves to inner layer plate;The utility model can filter water to food simultaneously still can clean filter hole of inner bowl, to effectively avoid subsequent cleaning work, indirectly increase filter water efficiency.

The utility model discloses a house car hot water circulation system, including the fan heater, the parking heater, the anti -icing liquid water tank, the plate heat exchanger, the hot water tank, the anti -icing liquid water tank, the plate heat exchanger, the hot water tank are integrated into three in one water tank, and the outside of three in one water tank is wrapped with the insulating layer, and the import end of plate heat exchanger is connected cold water source, and from the export end of plate heat exchanger, the fan heater, the parking heater, the anti -icing liquid water tank are connected in proper order and form the heat cycle loop, this system is integrated to the anti -icing liquid water tank, the hot water tank and plate heat exchanger, and the integration degree is high, and the system pipeline length is shortened, the outside of three in one water tank is wrapped with the insulating layer, reduces the heat loss of anti -icing liquid water tank, stores the heat in the hot water tank, effectively reduces the volume of anti -icing liquid water tank, reduces the anti -icing liquid dosage, improves the energy efficiency of circulation system, the anti -icing liquid water tank adopts the split type design with hot water tank, and shares wall surface, keeps independent pressure -bearing capacity, improves hot water efficiency.

This invention discloses a hydraulic coal and rock strata perforation device and method, comprising a drill rod and a nozzle assembly. The nozzle assembly includes a nozzle and a nozzle rod, with the nozzle connected to the nozzle rod, which passes through the drill rod and is connected to it. The nozzle and nozzle rod are in communication, and the nozzle rod is in communication with the drill rod. A slag discharge hole is provided on the nozzle head, and the slag discharge hole is in communication with the nozzle rod. Several inclined nozzles communicating with the borehole are provided outside the slag discharge hole. An anti-clogging structure is provided between the inclined nozzles and the slag discharge hole, and the inclined nozzles are in communication with the anti-clogging structure, which is in communication with the borehole. An unlocking structure is provided on the nozzle head, and a slag discharge structure is provided on the nozzle rod. The unlocking structure cooperates with the slag discharge structure. By opening an inclined nozzle on the outer edge of the nozzle head to complete inclined spraying, the rock slag generated from the sprayed coal and rock strata is discharged through the slag discharge hole on the nozzle head. Simultaneously, the anti-clogging structure and the slag discharge structure are used to efficiently remove the slag clogging the borehole, improving the rock slag return water efficiency.

The application discloses a dish-washing machine energy efficiency and water efficiency test report generation method and system based on big data, relates to the household appliance detection technical field, and in the system operation, multi-dimensional physical parameters are collected in real time and are synchronized and normalized; the preset logic cleaning data are based; the energy efficiency evolution model is used to extract water and electricity coupling characteristics and deviation characteristics; abnormal state recognition is carried out, and index accounting and visual layout are executed; a report containing trend analysis and suggestions is generated by associating a historical database. The system comprises a data acquisition module, a preprocessing center, a core analysis engine and a report management platform. Through the construction of a closed-loop automatic test architecture, the application realizes all-around high-precision capture of the dish-washing machine performance, and significantly improves the precision, scientificity of energy efficiency and water efficiency evaluation and real-time performance of report generation.

The invention relates to an intelligent cleaning method of a cleaning machine, the cleaning machine comprises at least three cleaning procedures, and when the last cleaning procedure of the current cleaning work is carried out, the water quantity X is reserved during drainage so as to be used by the first cleaning procedure of the next cleaning work. According to the intelligent cleaning method of the cleaning machine, on the basis of reducing the energy efficiency and the water efficiency, the cleaning index can be completed, the rinsing rate can be met, and the new edition energy efficiency and water efficiency limit value and grade requirements are met. The invention further relates to a computer readable storage medium, and computer programs / instructions which can be executed by the processor to achieve the intelligent cleaning method of the cleaning machine are stored on the computer readable storage medium. The invention further relates to the cleaning machine applying the intelligent cleaning method of the cleaning machine.

The utility model relates to the technical field of cooling towers, and discloses a splash-proof device for a high-level water-collecting mechanical draft cooling tower, which comprises a plurality of splash-proof lattice frames arranged in a grid manner, the cross section of each splash-proof lattice frame is quadrilateral, the vertexes of two adjacent splash-proof lattice frames on the same horizontal row are connected, the frame thickness of each splash-proof lattice frame is gradually increased from top to bottom, and the top of each splash-proof lattice frame is connected with the top of each splash-proof lattice frame. Each splash-proof grid frame is provided with a flow guide plate, the flow guide plates are connected to the bottoms of two adjacent frame edges in the splash-proof grid frame, and the flow guide plates in the same horizontal row are sequentially connected to form a triangular fold line; according to the splash-proof device, the contact area of the top surface of the splash-proof grid frame and drenching water can be reduced, splashing of water drops is reduced, the splash-proof efficiency and the silencing effect are effectively improved, the weight of the splash-proof device can be reduced, and the installation difficulty is lowered.

A kind of washing machine energy efficiency water efficiency test system device, to solve the problem that existing equipment cannot be systematized automation, operation is complex, small scope of application, the present application is by test water preparation system, constant temperature system, pipeline system, standard station and test station, first tap water is accessed test water preparation system and prepares the test water satisfying standard requirement, then test water is heated or refrigerated by constant temperature system, to meet the water temperature requirement of standard for test water;Afterwards, through pipeline system to reach standard station and test station, sample and standard machine are placed on test station and standard station respectively according to standard requirement and carry out energy efficiency water efficiency test.The main body structure of a kind of new washing machine energy efficiency water efficiency test system, constant temperature system, control system and test system are reasonably and effectively connected, the systematization and automation control of washing machine energy efficiency water efficiency test are realized, it is convenient and simple to operate, and the scope of application is wide.

The invention relates to the technical field of ecological environment protection, in particular to an ecological environment protection and collaborative management system for mountains, water, forests, lakes, grass and sand in an arid region. The system collects an original data set of a target area through a data collection module; the data processing module processes the original data set to obtain a standardized data cube; the database construction module establishes a comprehensive database; the landscape combination situation module generates a structured landscape situation data set; the ecological service value evaluation module obtains the ecological service value of each landscape situation; the ecological quality evaluation module calculates an ecological quality comprehensive index of each landscape situation; the water efficiency evaluation module is used for acquiring a comprehensive water efficiency index of each landscape situation; the mechanism analysis module obtains a causal path map; and the landscape optimization module is used for generating a Pareto optimal landscape configuration scheme set. The system provided by the invention can output a landscape configuration scheme with ecological rationality and regional suitability.

The utility model discloses an extrusion water feeding structure and a fog-free humidifier, the extrusion water feeding structure comprises a sewer pipe and a water feeding pipe, the sewer pipe and the water feeding pipe are respectively provided with a one-way valve, and a hose is connected between the sewer pipe and the water feeding pipe; the extrusion water feeding structure further comprises an extrusion device used for extruding the hose. According to the technical scheme, the humidifier is simple in water feeding structure and low in operation cost, and high water feeding efficiency and low noise can be both considered during operation.

A showerhead nozzle and shroud combination that eliminates fine mist from water flow while ensuring a uniform distribution of large water droplets. The showerhead may include a uniquely-shaped single nozzle opening that generates turbulence to create a uniform spray of large droplets. The shroud may include two chambers in which the exit from the second chamber includes a non-chamfered inside edge that prevents the formation of fine mist as fluid flow through. The combination of these features improves water efficiency, reduces clogging, and enhances the user experience. In some embodiments, the showerhead may also incorporate a mirror positioned near the shroud, which is less prone to fogging due to the elimination of fine mist. This design may provide a multifunctional solution for both showering and grooming tasks, ensuring consistent water flow and ease of use.

The utility model discloses a drip irrigation device for organic vegetable planting relates to drip irrigation device field, the utility model discloses a water inlet pipe and adapter, the inside of adapter is provided with water guide chamber, and the adapter is connected with water inlet pipe, and the one side of adapter is installed with drip irrigation pipe, and the one end of drip irrigation pipe and water guide chamber intercommunication is installed with filter screen, and the top of adapter is installed with first spring, and the top of first spring is connected with the pressing plate. The utility model discloses through being provided with scraper, pressing plate, pressure rod and first spring, when needing to clean the impurity of adhering on filter screen, the staff can press pressing plate, and pressing plate drives pressure rod to move down, and pressure rod drives scraper to move down, and scraper can scrape the impurity of adhering on filter screen, avoids the impurity always blocking filter screen and influences the filter water efficiency, and through this mode can clean the impurity of adhering on filter screen quickly, need not to remove filter screen to carry out cleaning, and then improve the cleaning efficiency to filter screen.

The utility model relates to a cleaning machine which comprises a water cup and a water pump, the water cup is provided with a water return area, the water pump is arranged in the water return area and is provided with a water suction port and a water outlet, and the water outlet of the water pump is provided with a water guide pipe which can stretch out and draw back in the radial direction along with the water pressure so as to control the water outlet area. When the actual water pumping flow of the water pump is large, the water guide pipe can expand in the radial direction and increase the water outlet flow along with the increase of the water pressure, and when the actual water pumping flow of the water pump is reduced, the water guide pipe can contract in the radial direction and reduce the water outlet flow along with the decrease of the water pressure, so that the water flow is automatically adjusted according to the actual water pumping condition, and the water efficiency and the cleaning effect are improved; and meanwhile, the noise problem caused by unstable water pressure is eliminated or reduced.

This invention relates to the field of flushing valve technology, and discloses a delayed flushing valve and sanitary ware. The delayed flushing valve includes a shell, a valve core assembly, and an adjusting plate. The valve core assembly includes a core body, a probe, and a first elastic element. The core body has a water-stopping part and a partition part. The partition part has a water passage hole. The probe passes through the water passage hole, leaving a water passage channel between the probe and the wall of the water passage hole. The probe has a plug, and a water passage groove is defined between the plug and the end of the water passage hole. The water passage area of ​​the water passage groove is smaller than the water passage area of ​​the water passage channel. The first elastic element applies an elastic force to the probe, causing it to move towards the pressure chamber. The adjusting plate is movable relative to the mounting port to change the initial distance between the contact surface on the adjusting plate and the probe. The probe can contact the contact surface when the core body is pressed. This invention changes the timing of probe contact by changing the initial distance between the contact surface and the probe, thereby changing the probe's reset stroke and achieving multi-level water efficiency adjustment.