179results about How to "Increase flushing power" patented technology

The invention discloses a washing method for a water tank type dish washer. The method includes the following steps that firstly, at the prewashing stage, water is injected, heating is started when the amount of injected water reaches a preset water amount, a circulating water pump starts running at the power accounting for 50% to 60% of the rated power, and eddy stirring is conducted through fins arranged on the upper surfaces of rotating spraying arms; secondly, at the main washing stage, the amount of injected water is controlled to be the preset water amount below the rotating spraying arms, heating is started, and the rotating spraying arms are driven to conduct spraying of different spraying strengths and different spraying angles in a segmented mode by setting the rated power of the circulating water pump in a segmented mode and setting the execution time in a segmented time; thirdly, at the rinsing stage, the amount of injected water is controlled to be the preset water amount below the rotating spraying arms, heating is started, and the rotating spraying arms are driven to conduct rinsing spraying. The washing method for the water tank type dish washer can solve various problems of Chinese style dishes, the washing efficiency can be effectively improved, more water and electricity are saved, and a mixing program is obtained.

The invention discloses a reverse osmosis water purification system which comprises a preprocessing device, a pressurizing device and a reverse osmosis membrane filtration device which are sequentially connected in series with a raw water passage, wherein a thick water branch and a clear water branch are arranged on the reverse osmosis membrane filtration device. The system also comprises a water quality detection device which is connected in series with the raw water passage, is arranged behind the preprocessing device and is used for detecting the TDS (total dissolved solid) value of raw water, an opening-adjustable flow valve arranged on the thick water branch, an adjusting device for adjusting the opening of the flow valve, and a controller for controlling the flow valve to keep first opening when the TDS value is not more than a preset value and controlling the flow valve to keep second opening when the TDS value is more than the preset value. According to the system, the waste of water resources can be effectively avoided and the service life of a reverse osmosis membrane can be effectively prolonged. The invention further discloses a reverse osmosis water purification machine provided with the reverse osmosis water purification system.

The embodiment of the invention discloses an air conditioning outdoor unit and a method for washing a heat exchanger and relates to the field of washing of air conditioners, aiming at improving the washing quality of washing the heat exchanger while realizing the aim of automatically washing the heat exchanger, and avoiding secondary pollution caused by residual dust. The air conditioning outdoor unit comprises a spraying device, wherein the spraying device comprises a water storage device, a water pump connected with the water storage device and a spraying pipeline connected with the water pump; the air conditioning outdoor unit further comprises a fan and a control unit; the spraying device is arranged between the fan and the heat exchanger; when the spraying pipeline sprays water, the fan rotates oppositely so that the water sprayed by the spraying pipeline is sprayed on the heat exchanger; the control unit is connected with the spraying device and the fan; the control unit is used for controlling the spraying device to do water spaying and controlling opposite rotation of the fan. The embodiment of the invention is used for washing the heat exchanger.

The invention provides a washing machine drainage control method and belongs to the field of washing device control. The invention aims to solve the problem of poor automatic cleaning effect of filter screens of the conventional washing machines. The washing machine drainage control method is characterized in that the rotating speed of an inner barrel and / or an impeller is controlled in a drainage process and the flow speed of washing liquor is controlled by controlling the rotating speed of the inner barrel and / or the impeller to clean a filter screen through back flushing. The washing machine drainage control method improves the filter screen cleaning effect; the rotation of the inner barrel and / or the impeller increases the discharge speed of the washing liquor, so that the filter screen cleaning effect can also be improved. When the water level is relatively low, the inner barrel and / or the impeller rotate(s) at a relatively high speed and wave-like high speed rotating water flow containing a large number of bubbles is generated in the inner barrel; the high speed wave-like bubble water flow can wash thread residues attached to the filter screen away, so that the filter screen is cleaned automatically.

The invention relates to an earth and rockfill dam for simulating an overtopping dam break test. The earth and rockfill dam mainly comprises a dam body built by rock materials on a dam base, wherein leading slots are dug on the top of the dam body along the upstream and downstream directions of the dam body; the leading slots are communicated with the upstream and downstream of the dam body; a gate is arranged in the middle of the leading slots at an interval; and the leading slots are separated into an upstream section and a downstream section through the gate. The gate is arranged in the leading slots on the top of the dam body, and when the upstream water level reaches the position and the test is started, the gate on the leading slots is opened, the upstream water is drained from the leading slots, and the dam body is effectively washed to form dam break. According to the earth and rockfill dam, when water is accumulated at the upstream, dam break caused by the situation that the water overtops the leading slots is avoided, the test start time can be simply and effectively controlled, and the life and property safety of testers and the masses at the downstream is guaranteed.

A road soil slope willow post protection technique comprises a slope protection and a bridge protection. The invention is characterized in that the slope protection comprises seed selection, ground furnish and mechanical posting; the bridge protection comprises seed selection, ground furnishing, drawing line and positioning, digging concaves, and planting the seed. The invention can be used to protect two side slopes of road.

The invention discloses a part cleaning machine. The part cleaning machine comprises a conveyor belt, material discs and rotary spray washing devices located above the conveyor belt. The spray washing devices are filled with cleaning liquid. Supporting rods are arranged under the parts, right below the spray washing devices, of the conveyor belt. The top ends of the supporting rods and the centers of the bottoms of the corresponding material discs are provided with mutually engaged locking mechanisms. The bottom of each supporting rod is provided with a pressure cylinder. The pressure cylinder can jack up the corresponding material disc conveyed to the position right below the corresponding spray washing device along the conveyor belt in the perpendicular direction. A gear is further fixedly arranged on each supporting rod, and each gear is engaged with another gear driven by a motor so as to drive the corresponding material disc to rotate. By the adoption of the part cleaning machine disclosed by the invention, the cleaning degree is high, and the cleaning efficiency is high.

The invention discloses a dishwasher top sprinkler assembly and a dishwasher, and relates to the technical field of dishwashers. The top sprinkler assembly is rotatably mounted above an inner container of the dishwasher through a top sprinkler fixing component, and is communicated with a sprinkling pipeline; a water outlet is formed in the top sprinkler assembly; the top sprinkler fixing component is connected with the top sprinkler assembly in a clamping manner through a clamping buckle-type fixing component. The invention further discloses the dishwasher comprising the dishwasher top sprinkler assembly. The top sprinkler assembly is rotatably mounted above the inner container of the dishwasher in a clamping manner through the top sprinkler fixing component and the clamping buckle-type fixing component, so that the dishwasher is convenient to operate, time-saving and labor-saving, and convenient to detach for cleaning.

The invention relates to a steel wire on-line processing production line comprising an automatic wire arranging device, a peeling device, a derusting device, a rapid phosphating device, a steel wire surface processing device and a steel wire drawing machine in sequence. A steel wire penetrates through the automatic wire arranging device, the peeling device, the derusting device, the rapid phosphating device, the steel wire surface processing device and the steel wire drawing machine in sequence. The overall structure is novel in design, the speed of on-line processing of the steel wire is high, efficiency is high, the processing effect is good, and the steel wire on-line processing production line has good actual using and popularization value.

The invention discloses an efficient ore washing machine. The efficient ore washing machine comprises a base; the top of the base is fixedly connected with a first support frame and a second support frame through bolts; the first support frame is positioned on one side of the second support frame; the top of the first support frame is fixedly connected with a first support cylinder through bolts;the top of the second support frame is fixedly connected with a second support cylinder through bolts; an outer cylinder is arranged between the first support cylinder and the second support cylinder;and the outer wall of one side of the first support cylinder is fixedly connected with a second motor through bolts. On the one hand, the efficient ore washing machine prevents the problem of difficult cleaning of high-viscosity soil on ores in non-flowing water, guarantees the cleaning of the ores, reduces impurities absorbed on the ores, and guarantees subsequent machining quality of the ores;and on the other hand, through spraying of water currents, the consumption of water is reduced, the problem of the water resource waste caused by need of a lot of water in ore cleaning is prevented, and the environmental protection property of the ore washing machine is improved.

The invention provides a pressure cleaning method of a full automatic soybean milk machine. The pressure cleaning method comprises the following steps of water feeding, pressure-increasing cleaning, pressure-maintaining cleaning, pressure-relief cleaning and the like; a secondary pressure-increasing cleaning step and a secondary pressure-maintaining cleaning step are sequentially arranged between the pressure-maintaining cleaning step and the pressure-relief cleaning step. The pressure cleaning method has the advantages that by controlling the amount of cleaning water and adjusting the pressure change, motor working mode and the like in a small-space crusher, the cavitation action in the cleaning process is accelerated, and the scouring force of cleaning water on a cutter, the inner wall of the small-space crusher and the like is increased; in the pressure-relief cleaning step, the high-pressure air in the small-space crusher is exhausted out, the water steam is accelerated to form by the pressure drop, the water steam can quickly dilute and wet the dirt in a pressure relief valve and a pressure relief passage which is communicated with the pressure relief valve, the adhesion force of the dirt is reduced, and finally the dirt falls down, so as to maintain the sanitation of the whole machine.

The invention discloses water-saving and efficient ore cleaning equipment. The equipment comprises a first supporting cylinder and a second supporting cylinder, and an outer cylinder, a second motor,a water tank, a filtering tank and a first motor are arranged between the first supporting cylinder and the second supporting cylinder; the filtering tank comprises a wastewater inlet and a filtered water outlet, a flow stabilizing partition plate is arranged in the filtering box, and a plurality of overflowing holes are formed in the flow stabilizing partition plate. According to the equipment, turned ore can be fully cleaned in all directions through ejected water flow, so that the cleaning of the ore is guaranteed, the contact area between the ore and the water flow is increased, water in the outer cylinder is effectively recycled, and soil and broken stone accumulation caused when the water flow does not circulate is avoided. Besides, sewage entering the filtering box can be depositedas soon as possible, the filtered water is recycled, the water consumption of the equipment is reduced, water resources are saved, and the operation efficiency of the equipment is improved.

The invention discloses a dish-washing machine, and relates to the field of dish-washing machines. The dish-washing machine comprises a tank body, a bubble generating device, a dish rack and a drivingdevice, wherein washing liquid is accommodated within the tank body; via the bubble generating device, gas is continuously and / or intermittently generated on the bottom wall of the inner side of thetank body; the dish rack is immersed in the washing liquid; and the driving device can drive the dish rack to do linear reciprocating motions or rotating motions in the tank body. According to the dish-washing machine provided by the invention, by designing the bubble generating device, bubbles can generate from the washing liquid in the tank body and the bubbles can subsequently vertically rise and reach surfaces of tableware, so that the tableware can be cleaned through impact wave which is generated as the bubbles break on the surfaces of the tableware; meanwhile, by designing the movable dish rack which can do the linear reciprocating motions or selective motions in the washing liquid, the bubbles can get into full contact with the tableware, and the washing liquid can be promoted to flow, so that flushing force of the washing liquid on the tableware is increased and adhesion force of greasy dirt to the tableware is reduced; therefore, a good cleaning effect is achieved.

The invention relates to an intelligent tea rolling device which comprises a rack, wherein a rolling disc is arranged on the rack; a rolling cylinder doing circling motion around the center of the rolling disc is arranged on the rolling disc; a pressurization mechanism is arranged in the rolling cylinder; a transmission mechanism for driving the rolling cylinder to move is arranged on the rack; a discharging hole and a discharging plate for opening and closing the discharging hole are arranged in the middle of the rolling disc; a discharging hopper is arranged below the discharging hole; an upper base body surrounding the rolling cylinder is arranged at the upper part of the rolling cylinder; a cleaning mechanism and a vertical blowing mechanism around the rolling cylinder separately are arranged in the upper base body in an external superposition manner. The intelligent tea rolling device effectively solve the problem about residue of tea leaf juice and tea leaves on the rolling cylinder and the rolling disc, timely removes residual tea leaf juice and tea leaves, and ensures the production quality of tea leaves.

The present invention discloses an oil fume suction machine and a thermal cleaning system for the oil fume suction machine. The thermal cleaning system comprises a water tank for holding water and a nozzle, wherein the nozzle and the water tank are communicated through a steam generation channel and a water supply channel so as to spray a cleaning fluid obtained by mixing steam and hot water. According to the thermal cleaning steam of the embodiment of the present invention, the nozzle is adopted to spray the high temperature and high pressure steam produced by the steam generation channel and the water conveyed by the water supply channel to the oil fume suction machine position requiring cleaning, the steam has the high temperature so as to effectively melt the oil stain, and the high speed water droplets have high kinetic energy so as to form high erosion force, such that the good cleaning effect can be achieved.

The invention discloses recycled water recycling equipment and a recycled water recycling process. The recycled water recycling equipment comprises a raw water tank, a raw water pump, a pretreatment system, a high-pressure pump and a reverse osmosis membrane component which are connected with one another sequentially through a water inlet pipeline, wherein a dialyzate outlet of the reverse osmosis membrane component is connected with a water generating tank through a water generating pipeline. The recycled water recycling equipment is characterized in that: a concentrated liquid outlet of the reverse osmosis membrane component is connected with a valve and a circulating pump through a concentrated pipeline and then is connected with a pipeline behind the high-pressure pump; the concentrated liquid outlet of the reverse osmosis membrane component is connected with a valve and a three-dimensional electric catalyst system through a pipeline; one outlet of the three-dimensional electric catalyst system is connected with a delivery pump through a backflow pipeline and then is connected with a raw material tank; and the other outlet of the three-dimensional electric catalyst system is connected with a drainage pipeline. The equipment and the process have the two-level circulation characteristic and have the advantages that: the recovery ratio is high; pollution is resisted; concentrated water can be directly drained after being treated, and the like; the whole process is used for treating recycled water; and the water recovery ratio is over 90 percent.

The invention relates to an agitating device, in particular to an agitating device of a high-performance agitating tank. The agitating device comprises an agitating paddle, wherein the agitating paddle is divided into an upper-layer paddle and a bottom-layer paddle; the outer circle of the upper-layer paddle is provided with a circle of upper-layer steel plate cylinder; a ring baffle is arranged below the upper-layer steel plate cylinder; the upper-layer steel plate cylinder is connected with the side wall of the agitating tank through a support plate; the outer circle of the bottom-layer paddle is provided with a circle of lower-layer steel plate cylinder; and the lower-layer steel plate cylinder is fixed on a bottom plate of the tank through the support plate. The invention has the following advantages: the agitating effect is better, the flow rate is accelerated, the scouring force is greatly increased, and the agitating strength is enhanced; compared with a common paddle, the energy is saved by about 40-60%; the effect on eliminating precipitates and scabs is obvious; and a common vertical baffle is canceled, so that energy consumption is reduced, and shear on liquid flows is reduced, thereby being beneficial to the growth of crystal grains in a seed precipitation tank.

The invention discloses a new energy advertising vehicle with a screen protection and sweeping function and belongs to the technical field of new energy advertising vehicles. The new energy advertising vehicle comprises a new energy advertising vehicle body, a metal protection frame is fixedly connected to the side wall of the front portion of the new energy advertising vehicle body, and protection glass is installed on the front surface of the metal protection frame; a screen mounting rack is fixedly connected to the bottom of an inner cavity of the metal protection frame, a display screen isinstalled at the top of the screen mounting rack, and a drying fan is installed at the left side of the side wall of the front portion of the new energy advertising vehicle body; a row-shaped dryingpipe is connected to an air outlet of the drying fan, two fixing plates are symmetrically and fixedly connected to the side wall of the upper portion of the new energy advertising vehicle body, and areciprocation lead screw penetrates through the portion between the two fixing plates. According to the new energy advertising vehicle, the screen can be insulated from the exterior, so that the screen is protected, the screen is more conveniently cleaned and swept, a display component of the vehicle can be swept and flushed, and the strength of the vehicle for flushing the display component is greatly improved.

The invention discloses an intelligent preparation method for a vermicular graphite cast iron brake drum. The intelligent preparation method comprises the following steps of adding part of pig iron, scrap steel and foundry returns into a low-frequency induction furnace for melting, and controlling the addition amount of a carburant; paving the bottom of a medium-frequency induction furnace with alayer of ferrosilicon to form a ferrosilicon layer, adding part of pig iron to form a pig iron layer, rising the temperature, and adding part of electrolytic copper and ferromanganese before the addedferrosilicon and pig iron are completely molten; pouring solution prepared in the low-frequency induction furnace into the medium-frequency induction furnace from the center of the top of the medium-frequency induction furnace through a pipeline; vermicularizing the solution in the medium-frequency induction furnace in vermicularizing casting ladles; and carrying out pouring. The intelligent preparation method for the vermicular graphite cast iron brake drum has the advantages of being high in brake drum production speed, good in brake drum quality and low in cost.

The invention provides a sprayer structure for a dishwasher, applied to the technical field of dishwasher parts. The sprayer structure is characterized in that a spray chamber (3) is formed between a sprayer upper sheet (1) and a sprayer lower sheet (2), the sprayer upper sheet (1) is provided with water spouts (4), the inner wall of the sprayer upper sheet (1) is provided with a circular rib (5), the water spouts (4) are arranged as a structure positioned in the circular rib (5), the sprayer lower sheet (2) below the water spouts (4) is provided with a lower sheet terrace (6), a circular operating chamber (7) is formed between the lower sheet terrace (6) and the circular rib (5), and a moving ball (8) is arranged in the operating chamber (7). The sprayer structure is simple in structure, water spouted from the water spouts may be automatically rotated by 360 degrees while the sprayer structure operates, sweeping area of the water spouts is enlarged, and spouted water provides greater flushing force.

The invention discloses a high-rise LED wall washing lamp with a self-cleaning function. The lamp comprises a transparent lamp shell, and a plurality of LED lamp beads are installed in the transparentlamp shell. A liquid storage cavity is formed in the side wall of the transparent lamp shell. A liquid pumping groove is further formed in the side wall of the transparent lamp shell; the liquid storage cavity is communicated with the liquid pumping groove through a liquid guide pipe, a pumping device for pumping liquid in the liquid storage cavity is installed in the liquid pumping groove, a first one-way valve is installed in the liquid guide pipe, a three-way pipe communicated with the interior of the liquid pumping groove is embedded in the transparent lamp shell, and a second one-way valve is installed at the water inlet end of the three-way pipe. Water in the liquid storage cavity is continuously pumped into the liquid guide pipe, then is discharged into the spraying pipe from the three-way pipe and finally flows to the surface of the lamp shell, so that dust particles attached to the surface of the lamp shell can be flushed, wind energy is utilized for cleaning, energy conservation and environmental protection are achieved, meanwhile, manual maintenance is not needed, and cleaning is rapid and convenient.

The invention discloses a mold cooling pipe wall limescale peeling device. The mold cooling pipe wall limescale peeling device can go deep step by step along a cooling pipe to peel off limescale on apipe wall with double-helix gap rinsing in cooperation. The mold cooling pipe wall limescale peeling device is characterized in that a connecting sleeve is arranged in a communicating hose in a sleeved manner, and is fastened by a buckle in a sealed manner, a plurality of antiskid protrusions are arranged on the outer wall of the communicating hose at equal intervals, more than one antiskid protrusion is arranged as one group, the antiskid protrusions are distributed on the outer wall of the communicating hose as segments, the multiple antiskid protrusions of the same group are distributed inthe circumferential direction, the separation distance between every two adjacent antiskid protrusions is the same, a ferrule is inlaid into the connecting sleeve, a plurality of rotary blades are arranged at the bottom of the ferrule, the ferrule rotates freely relative to the connecting sleeve, a rotary ring is arranged between the ferrule and the connecting sleeve, one end of a peeling pipe isfixedly arranged on the ferrule, the peeling pipe communicates with the communicating hose, a spiral groove is formed in the outer wall of the peeling pipe, and the diameter of the peeling pipe gradually decreases from one end to the other.

The invention relates to a stirring paddle, and especially relates to a high uniformity-required high performance backward bent stirring paddle with a circular arc surface. The stirring paddle includes a blade, wherein the cross section of the blade is circular arc-shaped or approximately circular arc-shaped, the tangential direction of the incident flow edge of the blade is parallel to the rotation direction of the blade; the projected shape of the blade in the vertical direction is outer end backward bent, the bent direction is opposite to the rotation direction, and the angle is 0-90 degrees. The stirring paddle has the following advantages that 1, low stirring energy consumption, wherein the projected shape of the blade in the vertical direction is backward bent, further reducing the resistance and reducing the energy consumption. 2, good stirring effect, wherein the stirring performance of the blade is improved; 3, capability of significantly reducing sedimentation at the bottom of the tank, wherein the backward bent blade can enhance the radial flow velocity, and enhance the wash force to edge of the tank, thereby controlling sedimentation; and 4, a gradually bent outflux edge of the blade of the stirring paddle, wherein the outflux edge is in parallel with the direction of flow movement, so the resistance to flow can be reduced, thereby further reducing energy consumption. Compared with folding blade paddles with the same specifications, the stirring paddle provided by the invention has 40% reduced energy consumption and has a stronger sedimentation controlling ability.

The invention discloses a special flushing valve of a toilet stool water tank, comprising a valve body, a press seal sheet, a seal port, a control lever, a water inlet pipe and a drain pipe port. The special flushing valve is installed outside the water tank; the materials and the operating scheme of the valve are far lower than conventional valve production standards, the water passing caliber is especially big (30mm-90mm), the structure is simple and the manufacture cost is low. The invention thoroughly solves the problems that the traditional toilet stool water tanks can not be removed from toilet stools, the water tanks can not be raised, flushing with suction pipes is powerless, 2-3L of water is wasted each time, the toilet space is occupied, the fitting structure is complicated, water leakage exists and the like.

Provided is a manual system for dredging a heavy-turning pipeline, comprising a pipeline dredger and a water-pressure dredge pipe comprising a rocker and a spring-type dredge pipe connected thereto; wherein a spring-type dredge bit is disposed on an end of the spring-type dredge pipe; the water-pressure dredge pipe is a hollow hose having an back end that may be inserted into a pipeline to be dredged; and a cross section of the dredge bit has a cog or a sharp corner. In a process of dredging a pipeline, the cog or the sharp corner may easily winds blocking objects, so that it is possible to quickly dredge the pipeline and improve dredging efficiency. Furthermore, since an opening having a diameter less than the water-pressure dredge pipe is disposed at an end of the water-pressure dredge pipe, water column with higher pressure may be formed, and sprayed water column has enhanced scouring force. In addition, since openings with different spraying directions are used, the end of the water-pressure dredge pipe is capable of spraying at different angles, and thus dredging efficiency is improved.

The invention discloses a compound submerged dam used for renovating a mountain river curve shoal. The compound submerged dam is arranged on an original riverbed, distributed along the river width, and located at the upstream of a concave bank side quirk. The compound submerged dam is characterized in that the dam top plane of the compound submerged dam is composed of a dam top plane body A and a dam top plane body B which are in slope connection, the dam top plane body A is close to the curve concave bank side, the dam top plane body B is located at a planned channel, the elevation of the dam top plane body B is the difference obtained by subtracting the channel maintenance water depth H from the channel segment designed water level Z, and the elevation of the dam top plane body A is greater than that of the dam top plane body B. According to the submerged dam used for renovating the mountain river curve shoal, cross-section flow velocity distribution of a project channel segment is regulated through the two dam top plane bodies of different heights, bend-rushing currents are relieved, the erosion strength of a channel shallow area is improved, and therefore the navigation flow condition of the curve channel segment is obviously improved; and the compound submerged dam does not change the watercourse width and has the characteristics of small project amount and little interference to navigation in the construction period.

The invention discloses a cotton woven fabric cleaning device comprising a cleaning tank containing cleaning liquid. A first guiding roller, a second guiding roller and a third guiding roller are arranged successively in the cleaning tank. A first roller brush in contact with the top surface of cotton woven fabric is arranged between the first guiding roller and the second guiding roller; and a second roller brush in contact with the bottom surface of the cotton woven fabric is arranged between the second guiding roller and the third guiding roller. Besides, a first flushing pipe is also arranged in the cleaning tank; and a rotating motor is arranged at the outer side of the cleaning tank. A first arc-shaped groove using the rotating shaft center of the rotating motor as the circle centeris formed in one side of the cleaning tank and is ranged above the cleaning tank; a second arc-shaped groove corresponding to the first arc-shaped groove is formed in the other side of the cleaning tank; one end of the first flushing pipe passes through the first arc-shaped groove and is connected with the rotating shaft of the rotating motor by a connecting rod; and the other end of the first flushing pipe passes through the second arc-shaped groove and is connected with a limiting block. The cotton woven fabric cleaning device has characteristics of high cleaning efficiency and good cleaningeffect.

The invention discloses a dishwasher spray arm and a dishwasher. The dishwasher spray arm includes a first water spray assembly equipped with first spray mouths and a second water spray assembly equipped with second spray mouths; and opening directions of the first spray mouths and the second spray mouths are different, dishwasher spray water flow is sprayed by the first spray mouths / second spraymouths, so that the first water spray assembly / the second water spray assembly rotates in different directions under the reverse action of the spray water flow. By adopting the dishwasher spray arm and by controlling inlet water to separately enter the first water spray assembly or the second water spray assembly, the dishwasher achieves rotation of the dishwasher spray arm in the different directions. The dishwasher spray arm is self-equipped with the first water spray assembly and the second water spray assembly which can respectively rotate in two directions, can achieve a function of bothclockwise and anticlockwise spraying and washing without need for a third-party structure to provide power or addition of additional spray arms, and achieves no dead angle cleaning to make the cleaning thorough.

The invention relates to sanitary and bathroom equipment, and particularly relates to a water spraying structure for a water closet, and the water closet. An injection nozzle includes an injection outlet and an injection inlet that communicates with the injection outlet, and the linear distance from the injection outlet to the injection inlet is larger than the cross-sectional diameter of the injection inlet, and so, when an injection water pipe flushes the inside of a bedpan body through the injection nozzle, a certain degree of vacuum can be generated between the injection inlet and the injection outlet under the action of water flow, so that the energy at the injection outlet of the injection nozzle is the sum of the potential energy generated by the height of a water level line of a water tank to the injection outlet of the injection nozzle and the energy that generates the degree of vacuum in the injection nozzle, and further the instantaneous flow rate at the injection outlet ofthe injection nozzle can be effectively increased. Compared with the prior art, the water spraying structure can not only effectively improve the flushing strength of the injection nozzle on the bedpan body, but also ensure better drainage effect on the bedpan body while ensuring usage of less flushing water, and can achieve the purpose of saving water.