134results about How to "Easy to enter water" patented technology

According to the embodiment, the invention discloses an intelligent sink-type dish-washing machine, an intelligent sink-type cooking machine and an expanded kitchen appliance thereof, wherein the intelligent dish-washing machine comprises an intelligent mechanical arm / manual cleaning arm, a to-be-washed-dish sink, a cleaning sink and a cleaned dish placing area. To-be-washed dishes are placed in the to-be-washed-dish sink in an inverted mode, the bottoms / back sides of the dishes are cleaned, graphic codes on the back sides of the dishes are recognized, then the dishes are picked up from the back sides and conveyed to the cleaning sink to clean the interiors and / or back sides of the dishes, and finally, the cleaned dishes are placed into the cleaned dish placing area. According to the intelligent sink-type dish-washing machine provided by the invention, the dish-washing machine and the sink are combined; and the dishes are recognized, picked up, cleaned and dried by virtue of the intelligent mechanical arm or the manual cleaning arm, so that intelligent dish washing is achieved. In comparison with an existing dish-washing machine, the intelligent sink-type dish-washing machine provided by the invention not only improves the efficiency of cleaning the dishes but also greatly saves the space of a kitchen occupied by the dish-washing machine; and more importantly, a problem that the existing dish-washing machine is inconvenient to mount can be solved.

The invention discloses a screw extrusion type sludge dewatering machine, comprising a machine base (1), a water inlet part, a sludge exit part (41), a water outlet part, a screw shaft (2) with a spiral blade (21), as well as a filter disc assembly composed of a plurality of annular static filter discs (5) and annular dynamic filter discs (6) in a cross-interval arrangement; wherein, each static filter disc (5) is fixed relatively to the machine base (1); the internal diameter of each dynamic filter disc (6) coincides with the external diameter of the blade (21) and has line contact with the blade (21); moreover, the space between two adjacent static filter discs (5) is slightly greater than the thickness of the dynamic filter disc (6) between the two adjacent static filter discs (5) so as to form a gap (7) between the static filter discs (5) and the dynamic filter disc (5); water can flow through the gap (7). Compared with the prior art, the invention enables water to directly flow out through the gaps of the filter disc assembly so as to avoid the abrasion to the static filter discs and the dynamic filter discs caused by sludge; the device has a longer service lifer and adopts only one power source to realize solid-liquid separation, so that the energy consumption is lower; besides, the components of the device are easy to install and simple in structure to facilitate actual implementation.

The invention provides a sewage plant and recycled water plant in-situ sampling and on-line test device and an operation method of the sewage plant and recycled water plant in-situ sampling and on-line test device, and belongs to the technical field of in-situ sampling and test devices. The bottom surface of a conical drill is fixedly connected with a cylindrical sampling rod in a sealing mode, a sampling opening is formed in the lateral side of the bottom end of the sampling rod, a baffle serves as a switch of the sampling opening, and the top of the baffle is connected with a metal rod connected with a handle; a hole plate filter screen is arranged above the sampling opening and is communicated with a silicone tube, and the silicone tube is connected with a water collecting device through a peristaltic pump; the water collecting device is provided with a probe in a sealed mode, and the probe is connected with an instrument. The drill is extended to an appointed depth under a liquid surface, and then the handle is pulled upwards to make the baffle and the sampling opening staggered, a water sample in an in-situ point to be tested flows into the sampling rod under the action of pressure, is filtered through the hole plate filter screen in the rod and then enters the silicone tube, and then the peristaltic pump is opened, and all kinds of indexes of the water sample entering the water collecting device are measured through the probe in real time. The method is flexible, simple, accurate, safe and reliable.

A submersible dredging vehicle relates to an underwater dredging technology. The submersible dredging vehicle is provided with a vehicle body, wherein a submersible sewage pump is arranged on the vehicle body, a drain pipe is arranged on a liquid outlet of the submersible sewage pump, four spiral propeller type driving wheels are arranged on the two sides of the vehicle body, spiral directions of the adjacent two driving wheels are opposite, a water retaining cover plate is arranged on the vehicle body, the vehicle body is provided with four driving motors connected with the four driving wheels and is further provided with a water storehouse and a draining pump, the draining pump is provided with a check pump, the water storehouse is provided with a water inlet pipe and a gas identification rod, an electric valve is arranged on the water inlet pipe, and the electric valve, the submersible sewage pump and the four driving motors are connected with a controller. The submersible dredging vehicle can move forwards and backwards, carry out translation, turn around by taking any one driving wheel as a circle center and by taking the center of the vehicle body as the circle center, move and the like through the turning matching of the four driving wheels. The submersible dredging vehicle disclosed by the invention has the advantages of high locomotive maneuverability, simplicity and convenience in position change, easy handling, no dead corner during working, more thorough cleaning, high dredging efficiency and strong subsidence and sliding capabilities.

The invention discloses an efficient water treatment device for spinning. The device comprises an outer frame, wherein a feeding hopper penetrates through the left side of the top of the outer frame; a first motor is fixedly connected with the top of the outer frame; a first driving wheel is fixedly connected with one end of an output shaft of the first motor; a second driving wheel is in driving connection with the surface of the first driving wheel through a driving belt; a moving device is fixedly connected with the back of the second riving wheel; a movable rod is fixedly connected with the bottom of the moving device; and the bottom end of the moveable rod penetrates through the outer frame and extends into the outer frame. The invention relates to the technical field of water treatment devices. The efficient water treatment device achieves the purpose of automatically adding a water treating agent, and manual addition is not required, so that the burden of a worker is relieved; the water treating agent can be automatically and discontinuously added, so that the resource waste is avoided and the water treatment efficiency is increased; and the effluent in different positions can be absorbed, so that the water treatment time can be shortened, and the water treatment quality can be increased.

The invention provides a detection device for industrial wastewater, and relates to the field of industrial detection device. The detection device includes a base, a box body is fixed on the top of the base, a water intake pipe is fixed on the right side of the top of the box body, a detector is fixed on the left side of a water intake pipe, a fixing rod is fixed on the left side of the top of thebox body, a screw is arranged on the upper side of the box body, and the screw and the fixing rod are in screw connection through a threaded hole. The screw is convenient for a purpose of multiple-time detection in different locations, so that data of wastewater detection is more reliable. Through a second electric telescopic rod, a purpose of uniform wastewater mixing can be achieved, harmful substances in the wastewater can be detected more easily, the accuracy of detection results can be improved, and the efficiency of detection can be increased. A second motor drives high speed rotation of an adsorption plate around a rotating rod, so that insoluble granular impurities in the wastewater can be adhered to the adsorption plate, the insoluble granular impurities in the wastewater can becollected, and working efficiency is greatly improved.

A room with automatic temp regulating function for culturing turtles in it is composed of a water pool with peripheral walls, sunning sand land, slope, overflow tube, water inlet tube and 1-5 drain holes, a transparent glass roof, and an electric temp controller consisting of temp sensor, temp controller and electric heater.

The invention discloses a seed soaking device for agricultural seedling culture, and belongs to the field of agriculture. The seed soaking device comprises a seed soaking box, a water inlet pipe is arranged on the side wall of the seed soaking box, a telescopic rod is arranged on the lower surface of a horizontal plate, the bottom end of the telescopic rod is connected with a fixed circular ring,a seed soaking mesh basket is detachably arranged on the fixed circular ring, an ultraviolet sterilizing lamp is mounted on the inner wall of the seed soaking box, an inclined guide plate is arrangedat the bottom end of the seed soaking box, a water discharging pipe is arranged at the lowest end of the inclined guide plate, a heater is mounted on the inclined guide plate, a pesticide adding pipeis arranged on the seed soaking box, one end of a spraying pipe is connected with the water inlet pipe, a plastic hose is arranged at the other end of the spraying pipe, and a spraying disk is arranged on the plastic hose. According to the seed soaking device, agricultural seeds are soaked underwater and cannot be floated on the water surface, proper water temperature and water flowing are ensuredin the seed soaking process, seed soaking efficiency and effect is improved, breeding and propagating of harmful bacteria on the seeds are avoided, eggs on the seeds are killed, safe seedling cultureof the seeds can be ensured, the germination rate of the seeds is increased, and growth of the seeds is facilitated.

The present invention discloses a special washing device for fruit and vegetable picking and relates to the technical field of agricultural washing devices. The special washing device for the fruit and vegetable picking comprises a washing bucket and a pickling bucket with an opening at a top part, side walls and a bottom surface of the pickling bucket all have mesh structures, a water draining pipe is arranged at a bottom surface of the washing bucket, water spraying assemblies are arranged evenly on internal walls of the washing bucket and comprise spraying heads and flexible water supply pipes, a water inlet end of the spraying head is connected to the flexible water supply pipe, through-holes are arranged on the side walls of the washing bucket, the other end of the flexible water supply pipe passes the through-hole and connects to external water source, a pickling bucket rack corresponding to the bottom surface of the picking bucket is horizontally arranged at an inner cavity of the washing bucket, and the picking bucket is clamped to the inner cavity of the washing bucket via the picking bucket rack. By arranging the picking bucket and washing bucket special for the picking bucket, the special washing device simplifies processes from the picking to washing and packaging, and is convenient for use, thorough in fruit and vegetable washing, and high in practicality.

The invention discloses an LED module sealing process. The LED module sealing process comprises the following steps: (1) a lamp shell and a lens are molded; and an LED lamp bead, a lead and a PCB areassembled to form a light source module; (2) sealing glue is dispensed in a first glue groove; and the sealing glue is dispensed in a second glue groove; (3) the light source module in the step (1) ismounted on the lamp shell treated in the step (2); (4) the lens treated in the step (2) is buckled on the lamp shell treated in the step (3); and the lens and the lamp shell are pressed to tightly bond the sealing glue in the first glue groove and the second glue groove; (5) screws are screwed in a through hole and a screw column in the step (4) to fix the lens and the lamp shell; (6) the glue isdispensed at the head parts of the screws assembled in the step (5) for waterproof sealing; and (7) the module is stood; and the sealing glue is cured. Through bonding of the sealing glue in the gluegrooves, the sealing of the connecting place between the lamp shell; and the lens is realized; through glue dispensing of the head parts of the screws, the further sealing of the connecting place ofthe screws is realized; the sealing process is simple; and the sealing performance between the lens and the lamp shell is excellent.

The invention relates to the field of cleaning equipment. The invention particularly relates to a maintenance station capable of automatically washing a mop. By setting a base, a cleaning groove usedfor cleaning a mopping piece of a cleaning robot is formed in the base. A dirt deposition part with a sewage collection cavity is arranged below the cleaning tank; when the mopping piece is cleaned inthe cleaning groove, generated sewage automatically flows into the sewage collection cavity downwards under the action of gravity; the dirt deposition part is arranged in a detachable connection manner; therefore, the dirt deposition part can be detached at any time to clean dirt accumulated in sewage; compared with the structure that sewage in the cleaning tank directly flows into the bottom ofthe base, the structure of the invention has the advantages that stain deposits to the bottom of the base and is transferred to the dirt deposition part, the problem that dirt on the mop easily staysat the bottom of the base and accordingly cleaning is inconvenient is solved, the sewage collection cavity can be cleaned without squatting down or lifting up the whole automatic mop cleaning maintenance station, and the cleaning and maintenance are quite convenient.

The invention discloses a pond field experimentation device and a using method thereof and relates to a device for experimental study of pond water area ecology and a using method thereof. The problems that the water oxygenation effect is bad, the water inlet and drainage are inconvenient, fishes are difficult to escape and the requirements of experimental study of pond water area ecology cannot be met in the conventional field experimentation enclosure ecosystem are solved. The pond field experimentation device comprises waterproof cloth, a U-shaped pipe, an oxygenation aeration device, an anti-escape net, two filtering nets, two straight pipes, four upright rods and four transverse rods, wherein the four upright rods are arranged in an array; a cross rod is connected between two upright rods; and the four upright rods and four transverse rods form a square frame. The field enclosure experimentation method mainly comprises the following steps: 1, inserting the upright rods on the square frame into the bottom of the pond; 2, injecting water into the square frame with the waterproof cloth; 3, oxygenating and aerating in water; and 4, draining water in the square frame. The pond field experimentation device is used for research of pond water area ecology.

The invention discloses a water-aid injection molding water needle, which comprises a die. The die is provided with a mounting hole, and a water needle is arranged in the mounting hole; the water needle comprises a water needle sleeve and a water needle core rod in the water needle sleeve; and a water inlet flow passage and a gas inlet flow passage are formed in the die, a water supply device is connected to the outside of the water inlet flow passage, and a gas supply device is connected to the outside of the gas inlet flow passage. The water-aid injection molding water needle is characterized in that a clearance is formed between the water needle sleeve and the water needle core rod and communicated with the gas inlet flow passage and a die cavity of the die, the middle part of the water needle sleeve is provided with a trough which is communicated with the water inlet flow passage, the tail part of the water needle sleeve is provided with a water inlet distributor, one end of the water inlet distributor is communicated with the trough, and the other end of the water inlet distributor is communicated with the die cavity of the die. The water needle system integrates water inlet, gas inlet and drainage; and the water needle has the advantages of simple structure, convenient manufacturing and machining operations, small volume and stable performance, can be applied to various dies, and can prevent water medium and plastic melt from overflowing, effectively drain water in a water passage and achieve the purpose of reasonably reclaiming water resources.

The invention discloses a long-acting earthing device comprising a metal wiring terminal and an earthing main body. The earthing main body comprises an ion bin and a water-logging box. The inside of the ion bin is of a cavity structure in which a conductive ion material is placed; and the inside of the water-logging box is of a cavity structure. Both the ion bin and the water-logging box at least comprise a cavity. The invention has the advantages of effectively retaining and improving the humidity of soil for a long term and remarkably improving the resistance-reducing effect and the diffuse effect of the earthing device for a long term; and a metal material on the earthing device cannot be corroded, thus the service life of the long-acting earthing device is remarkably prolonged.

A solar-energy-based device improving water quality through mixing and oxygenating is disclosed. The device includes a water pump system, a water flow rising system, a Venturi air feeding system, a floating body and anchoring piers. The floating body floats on the water. The anchoring piers are disposed at the bottom of a water body and are connected to the floating body. The water pump system includes solar power generators disposed on the floating body and a water pump disposed in the water. The solar power generators are used for supply the water pump with electricity. The Venturi air feeding system includes a Venturi pipe two ends of which are opened and which is longitudinally disposed, and a plurality of air feeding pipes communicated with a throat part of the Venturi pipe. Air inlets of the air feeding pipes are above the water surface. The water flow rising system penetrates the floating body at the longitudinal direction, and the bottom of the water flow rising system is connected to the upper straight tube of the Venturi pipe. The bottom of the lower straight tube of the Venturi pipe is communicated with a water inlet of the water pump. The device can be operated in a green and low-carbon manner, can economically and efficiently improve water quality of shallow water, rivers, lakes and reservoirs in situ without electricity consumption, and can control water body eutrophication.

The invention discloses an agricultural efficient plowing and water collecting irrigation device. The device comprises a moving vehicle, a water tank, a water inlet hose, a spraying plate, a camera, an illuminating lamp, a coulter, a crushing roller, a cleaning rake and an accumulator, wherein the bottom face of the moving vehicle is provided with supporting legs; the moving vehicle is internallyprovided with the water tank; the top end of the water tank is provided with the water inlet hose; the bottom end of the water tank is provided with a water duct, and a water outlet end of the water duct is movably provided with the spraying plate; the front end side wall of the moving vehicle is provided with the illuminating lamp, the bottom end of the front end side wall of the moving vehicle is provided with a transverse rod, a rotating motor is arranged on the transverse rod, the bottom face of the transverse rod is provided with a first lifting rod, and the bottom end of the first lifting rod is provided with the coulter; crushing teeth are evenly arranged on the outer wall of the crushing roller; the bottom face of the transverse rod is provided with a second lifting rod, and the bottom end of the second lifting rod is provided with the cleaning rake, and the bottom face of the moving vehicle is provided with an ionization rod. The agricultural efficient plowing and water collecting irrigation device has the advantages of being helpful for the irrigation of the ground soil and the leveling of the land, having simple structure and convenient use and being good for generalization.

The invention discloses a UASB reactor for sewage treatment. The UASB reactor includes a UASB reactor pool and a support rod located on the central axis of the UASB reactor pool. The support rod is connected with a water distribution pipe, and the water distribution pipe It is installed horizontally, and the support rod is installed vertically. The UASB reactor also includes a sewage return pipe, and the sewage return pipe includes a first sewage return pipe and a second sewage return pipe. The first sewage return pipe One end is connected with the support rod, the other end is arranged outside the UASB reactor pool, one end of the second sewage return pipe is located at the bottom of the UASB reactor pool, and the other end is arranged outside the UASB reactor pool. The structure of the UASB reactor in the present invention is simple, the effect of water distribution is good, the structure of the packing frame is stable, and the effects of water intake, drainage, exhaust and sludge discharge can be obviously improved.

The invention discloses a safe and water-saving circular showering room. The safe and water-saving circular showering room comprises a showering room body, a water tank and a sedimentation box, wherein a heat preservation soft shell pad is laid on the inner wall of the showering room body, a seepage prevention layer and a floor layer are arranged on the bottom face of the showering room body frombottom to top in sequence, and the bottom of a floor drain is communicated with a water outlet pipe; a heater, a ventilating fan and an illuminating lamp are installed at the top of the showering roombody, a water inlet pipe is arranged at the top of the water tank, and a heating chamber is formed in the bottom of the water tank; a spraying disc is arranged at the outlet end of a water spraying pipe, one end of a water through branch hose is communicated with the water spraying pipe, a handheld spraying spoon is arranged at the other end of the water through branch hose, a filtering module isarranged inside the sedimentation box, and the top of the sedimentation box is communicated with the water tank through a return pipe. According to the safe and water-saving circular showering room,the loss of heat is reduced, the service life is prolonged, the safety is improved, and slippery during showering is avoided; meanwhile, the damage degree in the slippery is reduced, the waste of thewater resource is reduced, the utilization rate of water is increased, the resource is saved, and the safe and water-saving circular showering room is simple in structure, convenient to use and beneficial to popularization.

The invention relates to a verification and calibration device for a dissolved oxygen tester. The device comprises a shell, a constant-temperature water tank, a detection water tank, a heater, a pressure sensor, an inner tank temperature sensor, a detection water tank floating cover, an inner tank liquid level meter, an outer tank liquid level meter, a water charging and discharging device, an aeration device, a control box and a touch screen display; the constant-temperature water tank is arranged to provide a constant-temperature environment for calibration of the dissolved oxygen tester; the hot water in the constant-temperature water tank is used for heating water in the detection water tank to a set temperature; the atmospheric pressure is detected by the pressure sensor; the oxygen is introduced into the water in the detection water tank through the aeration device until the dissolved oxygen in the water in the water tank is detected to be saturated; and the concentration of dissolved oxygen in water in the water tank is measured and detected by using a dissolved oxygen sensor of the dissolved oxygen tester to be calibrated, the concentration is compared with the standard value of dissolved oxygen under the temperature and atmospheric pressure in the calibration procedure of the dissolved oxygen tester, and the concentration indicating value error of the dissolved oxygentester to be calibrated is calculated.

A VOC water removal collecting trap of the invention relates to a processing system used for detecting an atmospheric sample. The invention aims at providing the water removal collecting trap with a simple structure and high detection precision. The VOC water removal collecting trap comprises a sealed cabin, a refrigeration cabin arranged in the sealed cabin, and heating components arranged in thesealed cabin and distributed on two sides of the refrigeration cabin. The sealed cabin is a cabin body formed by several aluminum plate materials. One side of the sealed cabin can be opened and closed. The refrigeration cabin comprises a refrigeration cabin body, connecting components installed on the two sides of the refrigeration cabin body, a water removal path and a trapping path which pass through the connecting components and the refrigeration cabin body. The connecting components are used for fixing the water removal path and the trapping path. The water removal path comprises a waterremoval pipe and a glass pipe. The glass pipe passes through the water removal pipe and is stretched out of the water removal pipe for a length. The trapping path comprises a trapping pipe and a chromatographic column. The chromatographic column passes through the trapping pipe and is stretched out of the trapping pipe for a length. The water removal pipe, the trapping pipe, and the glass pipe arestraight-through pipelines.

The invention discloses a multifunctional artificial intelligence company robot. The multifunctional artificial intelligence company robot comprises a circular bearing base, the upper surface of the circular bearing base is fixedly connected with a circular outer shell, an intelligent display mechanism is arranged on the upper surface of the circular outer shell, a control massage mechanism is arranged in the circular outer shell, and an intelligent moving mechanism is arranged on the lower surface of the circular bearing base. The multifunctional artificial intelligence company robot has thebeneficial effect of being a household accompany type intelligent device having the effects that the use is relatively convenient, surrounding conditions can be conveniently and intelligently detected, the foot soaking operation can be conveniently carried out through remote control, water feeding is convenient and water discharging is convenient.

The invention discloses a bagged food cooling system, and relates to the technical field of food processing and food cooling. According to the technical scheme, the bagged food cooling system comprises a cooling pool, a movable roller mechanism is arranged in the cooling pool, an inclined conveyor belt is arranged at one end of the cooling pool, an inclined guide plate is connected to one end of the conveyor belt, and a condensed water removing mechanism is arranged at the bottom of the guide plate. The bagged food cooling system has the beneficial effects that according to the system capable of quickly cooling bagged foods, a roller is provided with a water outlet pipe in a follow-up manner, water cooled by a refrigerating machine can be introduced, and the position where a food bag is located can be cooled by cold water all the time; when the roller reaches the conveyor belt, the food bag can slide onto the conveyor belt along a sliding plate only by opening a roller cover; and the condensed water removing mechanism adopts the manner of carrying out air drying and water absorption cloth wiping at the same time, so that condensed water on the surface of the food bag is effectively removed, and subsequent bagging and boxing work can be carried out conveniently.

The invention provides a noodle basket component and a continuous noodle cooking machine using the same. The continuous noodle cooking machine comprises a stand, wherein a boiling pot and a conveying chain penetrating through the boiling pot in a reciprocating way are arranged on the stand, a conveying chain inlet and a conveying chain outlet are formed in the boiling pot, the conveying chain comprises a conveying chain strip and a noodle basket component which is fixedly arranged on the conveying chain strip and extends along the width direction of the conveying chain, the noodle basket component comprises a noodle basket mounting rack which is fixedly arranged on the conveying chain strip, a plurality of noodle baskets for containing noodles are uniformly distributed on the noodle basket mounting rack along the width direction of the conveying chain, the plurality of noodle baskets are arranged at intervals along the left-right direction, a water permeable gap is reserved between two adjacent noodle baskets, each noodle basket is respectively articulated and assembled with an openable basket cover in a one-to-one correspondence way, and a covering mechanism and a cover opening mechanism are correspondingly arranged on the stand. When the noodle basket component enters the boiling pot, because of existence of the water permeable gaps, water can enter from the periphery of the noodle baskets conveniently, thereby effectively avoiding the problem that the cooking degree of the noodles in the noodle baskets is non-uniform caused by the fact that water is not convenient to enter.

The invention discloses a waterproof and anti-collision structure arranged in an automobile circuit board. The structure comprises an outer layer upper cover, an outer layer upper cover seal ring, aninner layer upper cover, an internal circuit board, a rubber anti-collision backing ring, an inner layer shell, an outer layer shell, a fixed convex lug, an outer layer lower cover, an outer layer lower cover seal ring and an inner layer upper cover seal ring; the automobile produces the bumping in the driving process, the bumping transmitted to the automobile circuit board is greatly reduced through the springs at the inner sides of the inner layer shell and the outer layer shell, thereby improving the anti-collision capacity of the circuit board; the rubber anti-collision backing ring in theinner layer shell further improves the anti-collision performance of the anti-collision structure; a double-deck wrapping structure is provided, a boss-groove matching structure is adopted at a connecting part, the boss is upward and the groove is downward, thereby preventing the water from entering the shell from the connecting part; seal rings are adopted at various connecting parts, the outside water stains cannot enter the inner layer shell, thereby preventing the water from entering the circuit board, and the waterproof capacity is greatly improved.

The invention relates to a cross-medium aircraft with a variable structure. The cross-medium aircraft comprises a fuselage, foldable wings, an adjustable vertical tail, an adjustable horizontal tail, a water jet propulsion device and foldable propellers. The foldable wings comprise a left wing and a right wing which are symmetrically installed on the two sides of the front portion of the fuselage, and folding and unfolding are achieved through a multi-degree-of-freedom adjusting mechanism. The adjustable vertical empennage is installed on the upper side of the tail of the aircraft body and used for adjusting the advancing direction of the cross-medium aircraft in the air or underwater. The adjustable horizontal empennage comprises a left empennage and a right empennage which are symmetrically installed on the two sides of the tail of the aircraft body and used for achieving floating or diving of the cross-medium aircraft in water. The water jet propulsion device is installed at the tail of the aircraft body and used for providing underwater advancing power for the cross-medium aircraft. The foldable propeller is installed on the head of the fuselage. According to the cross-medium aircraft, through the variable structure design, the underwater resistance is effectively reduced, and the amphibious cross-medium navigation capacity of underwater high speed, high maneuverability and aerial high-speed flight is achieved.

The invention discloses a noise-reducing leak-proof durable pulse oral irrigator pump member. The noise-reducing leak-proof durable pulse oral irrigator pump member comprises a shell and a piston which is made from a composite nylon material, wherein a motor groove is formed in one end in the shell; a driving groove is formed in the center in the shell; a pump groove is formed in the other end inthe shell; a pump body is arranged in the pump groove; a piston is arranged in the pump body; the center of the driving groove is rotationally connected with a driven spiral bevel gear; and the top end of the driven spiral bevel gear is fixedly connected with an eccentric rotating column. After the piston makes contact with water, the whole piston can swell to ensure that the friction of the pumpbody and the piston neutralizes each other in the drawing process, so that the loss is reduced, and the sealing closeness of the whole drawing device and the pump body is improved. Much more drawing,much higher the closeness is, and the higher the pressure formed after water impact is; the higher the pressure is, the larger the water column is; and furthermore, the water in the cavity can be prevented from overflowing.

The invention discloses a mixed oxygenate-microorganism immobilization biological enhanced artificial floating island which comprises a photovoltaic water pump system, a water flow raising system, a Venturi gas inlet system, an upper floating body and a lower floating body, wherein the upper floating body floats on water; the Venturi gas inlet system comprises a longitudinally arranged Venturi pipe with openings formed in the two ends and a plurality of gas inlet pipes which is communicated with the throat of the Venturi pipe; an gas inlet hole of each gas inlet pipe is above the water level;the water flow raising system longitudinally penetrates through a floating body; the bottom of the water flow raising system is connected with an upper part straight cylinder of the Venturi pipe; thebottom of a lower part straight cylinder of the Venturi pipe is communicated with a water inlet hole of the photovoltaic water pump system; plants in the upper floating body and the lower floating body have the purification effect on the water quality; pollutants such as nitrogen, phosphorus and organic matters in water can be effectively degraded through biological membranes; and spherical fillers in the floating body greatly strengthen the adsorption and degradation effect on the pollutants. The mixed oxygenate-microorganism immobilization biological enhanced artificial floating island provided by the invention can greenly run with low carbon, can economically and efficiently improve the water quality of water bodies in shallow river lake and reservoirs in situ without power consumptionand controls eutrophication of the water body.

The invention discloses an artificial floating island integrating water purification and lamplight brightening. The artificial floating island comprises a hybrid oxygen filling system, an artificial floating island system and a lamplight brightening system, wherein the artificial floating island comprises a floating body, PVC reinforcing pipes, planting pots and floating island plants, the floating body selects various kinds of models based on a round shape, and various aquatic plants for purifying the water quality are planted in the middle and at the outer edge of the floating body, the hybrid oxygen filling system adopts solar energy power generation devices to supply power, water circulation is promoted and improved through a water pump, air is absorbed to conduct oxygen filling on water at the position of a reducing pipe through a venturie principle, and thus a synergetic pollution removing effect is formed with the artificial island; the lamplight brightening system comprises waterproof LED light strings which are diversified in shape and different in color, the light strings are arranged in the floating island based on local conditions, and the water purification effects ofthe plants can be strengthened when the floating island plants are illuminated by lamplight at night. The artificial floating island can operate in a green and low carbon state, can in-situ improve the water body quality of shallow rivers, lakes and reservoirs and control eutrophication of water bodies economically and efficiently without electricity consumption, and achieves overwater lighting atnight and city lamplight brightening.