498results about How to "Solve the entanglement" patented technology

The invention relates to a vertical multi-impeller washing machine which comprises an inner barrel, an outer barrel, impellers, a motor, a speed reducer and a transmission gear. The invention is characterized in that: the impellers are three or four impellers which are pivotally arranged on the periphery of the inner wall of the inner barrel and correspondingly arranged at 120 DEG or 90 DEG; the impellers take the shape of a basin and are provided with convex ribs with smooth edges; gear rings are arranged on reverse surfaces of the impellers; the transmission gear is provided with three or four output shafts on which the impellers are arranged. A washing method of the invention is characterized in that: during the washing process, washing can be carried out when water inlet quantity only reaches one third of impeller height, and all the impellers can rotate positively or reversely simultaneously for washing clothes. Due to adoption of multi-impeller structure, the clothes can be overturned and thrown in the three-dimensional direction, thereby effects of non winding, high cleanliness and low abrasion are realized. Because the inner barrel and the outer barrel are designed into the shape of a basin and the size of the bottom part of the outer barrel is small, the aim of water conservation is reached.

The invention relates to a pressure pipeline ultrasonic internal detection automation device; a purpose comprises that the provided device can meet detection requirements of a larger-diameter pipeline and has the characteristics of high detection accuracy and high detection efficiency. The technical scheme comprises that the pressure pipeline ultrasonic automatic detection device comprises a pipeline crawling robot, a probe assembly device, encoders, centralizers, supporting frames, a phased array module device and an ultrasonic detecting instrument; the probe assembly device comprises a first annular phased array probe assembly, a second annular phased array probe assembly, a conical phased array probe assembly for detecting defects of inner and outer surfaces and an interior circumference, and corresponding probe holding devices; the first annular phased array probe assembly, the second annular phased array probe assembly and the conical phased array probe assembly are each composed of more than 3 of 128 array element phased array probes; ultrasonic waves emitted by piezoelectric crystal plates of the probe assemblies firstly pass through an annular concave lens and then scan circumferential pipeline walls.

The invention discloses a miniature crawler-type cable tunnel patrol robot, which relates to a robot capable of realizing cable tunnel / pipeline patrolling. The robot consists of two independent crawlers, a substrate, a posture setting mechanism, a camera with a holder, and a sensor. The posture setting mechanism is arranged in the substrate. The camera with the holder is arranged on the substrate. The two crawlers are positioned on the left and right sides of the substrate respectively, and are in rotational connection with driving connecting rods on the substrate and the posture setting mechanism by two groups of shafts respectively. The sensor is arranged on the substrate. The left and right independently driven crawlers are adopted, and a posture included angle formed by the two groups of crawlers can be set, so the robot can be adapted to either the smooth-riding surfaces of cable tunnels or the arched surfaces of pipelines of different diameters by regulating the posture included angle, and realizes advancing, stepping-back and various turning motions by controlling the motions of the left and right crawlers. The robot realizes the automatic patrolling of underground transmission lines.

The invention discloses a hole forming device capable of adjusting the aperture of a formed hole on line. The hole forming device comprises an eccentric hole-forming machine head component, an eccentric head feeding platform component, an aperture adjusting driving component, a main shaft cable winding-preventing component and a pressing foot component. According to the hole forming device, an inner eccentric sleeve and an outer eccentric sleeve are used for achieving high-speed self rotating of a tool and revolution of the tool around a changeable center in a hole forming process, and then compound motion needed by tool eccentric hole forming is provided. The self-rotating speed of the tool is achieved by the fact that an outer frequency changer controls the frequency of an electric main shaft. Aperture adjusting, tool revolution speed and tool axial feeding speed can be accurately controlled by programs through servo control motors. The hole forming device can achieve on-line formed hole aperture adjusting, hole forming efficiency is improved, meanwhile, machining of taper hole can be achieved, the problem of cable winding during main shaft high-speed rotating is avoided through a main shaft cable winding-preventing mechanism, and the stability and the safety of the whole hole forming device are improved.

The invention provides a suspending machine of a zipper slider for electroplating, and belongs to the technical field of zipper suspending machine. The machine comprises a chassis with a PLC (programmable logical controller) panel, wherein a zipper slider storage device and a zipper slider conveying and hooking alignment detection device are cooperatively arranged on the chassis; a zipper slider hanger control device is cooperatively arranged on the lateral side of the chassis; the zipper slider hanger control device is connected with a rotating disk compressed air source conversion device; a zipper slider hanger is cooperatively arranged on the rotating disk compressed air source conversion device; the outlet end of the zipper slider storage device is connected with the inlet end of the zipper slider conveying and hooking alignment detection device; the outlet end of the zipper slider conveying and hooking alignment detection device is matched with a zipper slider hook on the zipper slider hanger; and the zipper slider storage device, the zipper slider conveying and hooking alignment detection device and other devices are controlled by the PLC. By adopting an electric signal control system, the machine has the advantages of convenience in whole operation, efficiency improvement, high accuracy, simple structure, time and labor saving and low production cost, and is suitable for industrial production and application.

The present invention discloses a position adjusting and positioning device of a capacitive displacement and vibration sensor, which comprises an axial position adjusting and positioning assembly, a radial position adjusting and positioning assembly and a sensor installing and fixing assembly. The axial position adjusting and positioning assembly and the radial position adjusting and positioning assembly commonly realize the position adjusting of the sensor in the axial direction and the radial direction. The invention adopts a screw mechanism for realizing the axial position adjusting function and prevents the problem of cable winding of the sensor. The sensor installing and fixing assembly adopts a trapezoid compression ring fixing mode for fixing the sensor. The problem that the probe plane of the sensor is not parallel with the surface of the sensed object caused by the imperfect installation is prevented. The position adjusting and positioning device of capacitive displacement and vibration sensor has the advantages of simple operation and easy installation. The reasonable installation positioning design prevents the measuring error caused by the imperfect positioning and installing of the sensor.

The invention discloses a full-automatic chemiluminiscence tester and belongs to the field of chemiluminiscence testing.The full-automatic chemiluminiscence tester comprises a mechanical arm module, a refrigeration module, a power module, a reagent sample disk, a sampling needle component, a stirring component, a reaction cup frame, an incubation device, a magnetic separation component, a washing station component and a measuring room.Full-automatic management is achieved for mixing, reacting, incubating, magnetic separating, detecting and other procedures of a sample to be tested, the detection efficiency is improved, and operation errors are reduced.

The invention belongs to the field of the solar energy equipment, and in particular relates to a solar tracker, which comprises a mechanical movement part and a reset control part; wherein, the mechanical part comprises a horizontal epicyclic mechanism and a vertical pitch mechanism; a photosensitive element is arranged on solar components; and by sensing the sunlight intensity and controlling the operation of a motor by a control circuit, the sun tracking is realized. With flexible movement, low processing cost and higher reliability, the angle of the vertical pitch mechanism of the solar tracker ranges between 20 and 70 degrees; after the reset control part drives the solar tracker to move from a starting position to a preset ending position, the solar tracker is automatically reset along the original trajectory, thus avoiding the winding problems of wires and water pipes caused by the circular motion; the system can render the sunlight reception surface of the solar energy components in working state to be in perpendicular to the sunlight so as to effectively receive the sunlight and improve the working efficiency; and the entire system has the advantages of simple structure, low manufacturing cost, reliable control and high precision.

The invention relates to a two-dimension fountain device, which comprises a lower dimension mechanism and an upper dimension mechanism. The lower dimension mechanism and the upper dimension mechanism respectively comprise a motor, a speed reducer, an output shaft, a three-way connector and an overflow support ring. The upper dimension mechanism also comprises a shower nozzle with an elbow pipe. In the lower dimension mechanism, an outlet at the lower end of the shell of the speed reducer is connected with a water-proof tube; the bottom part of the water-proof tube is provided with a cable input connector; the outer wall of the lower end of the output shaft in the water-proof tube is connected with a nut; the inner wall of the lower end of the output shaft in the water-proof tube is connected with a conducting ring seat; and the bottom part of the conducting ring seat is connected with an axial conducting ring inserted into the conducting ring seat. The first ports of the two three-way connectors and the outlet of the shell of the corresponding speed reducer as well as the corresponding input shaft are respectively and hermetically connected through two rubber seal rings, a skeleton seal ring, a seal stop bowl and a stainless steel snap ring. The third ports of the two three-way connectors and the corresponding overflow support ring are hermetically connected through a polytetrafluoroethylene ring. The two-dimension fountain device is good in sealing property under high-pressure water flow, can be used for enabling the shower nozzle to continuously and freely rotate for 360 degrees and can be widely applied to various fountain facilities.

The invention relates to a washing machine, in particular to a double-impeller multi-power automatic washing machine, comprising an outer tub, an inner tub, a big impeller and a small impeller which are coaxially arranged on the bottom of the inner tub, and a driving motor, wherein, the small impeller is coaxially arranged in the big impeller, wherein, the big impeller and the small impeller coaxially and reversely rotate while the washing machine operates; the big impeller and the small impeller high-speed rotate with the inner tub while the washing dewaters. The double-impeller multi-power automatic washing machine of the invention uses two impellers to replace an inner tub impeller to truly fulfill that the winding problem of washed clothes caused by rotary vortex is solved without reducing flow washing force; thereby washing efficiency and cleaning evenness are improved.

The invention discloses a changing hub of a tide generating set. A hydraulic cylinder is arranged in front of the hub, a piston push rod is provided with three racks parallel to the piston push rod, one end of each gear shaft is meshed with each rack, and the other end is fixedly connected with a blade; when the piston push rod axially moves, the blade rotates around the axial line, a main shaft flange is connected with a hub main body, a shaft hole of the main shaft flange is fixedly connected with a main shaft transmitting mechanical energy, an oil feeding seat is fixedly connected with an engine room, and a sensor end cover is fixedly connected with a displacement sensor which measures the displacement of the piston push rod so as to obtain the blade pitch angle. An oil source is communicated with a left cavity and a right cavity of the hydraulic cylinder by an oil passing hole on the oil feeding seat, an oil distributing groove and an internal oil passing hole on the main shaft, oil passing holes on a push rod rear support and the main shaft flange, and internal oil passing holes in walls of the hub main body and the hydraulic cylinder to form a hydraulic loop. The invention has compact structure, small hub volume, large blade changing drive force and good control performance, and is suitable to be applied to the tide generating set bidirectionally utilizing tide energy; and the blade changing angle can exceed 180 degrees.

The invention relates to an unmanned plane parachute system capable of automatically and quickly opening the parachute. The unmanned plane parachute system comprises an unmanned plane, and an inflatable air bag framework, a parachute body, a threaded sealing high-pressure air bottle, a steel spring striking hammer with a control function, a wireless signal receiver and a parachute control system which are mounted on the unmanned plane, wherein the inflatable air bag framework comprises supporting bones, an inflating end and a crossed opening rack; the wireless signal receiver is mounted at the inflating end and is connected with the steel spring striking hammer; the parachute control system is bridged to a circuit of the unmanned plane and comprises an acceleration sensor, an air pressure sensor, a main controller, an audible and visible alarm device, a power supply and a wireless signal emitter; the lower end of the threaded sealing high-pressure air bottle is mounted in the inflating end. Compared with the prior art, the unmanned plane parachute system disclosed by the invention can effectively solve problems that the current parachute opening speed is low and an umbrella rope is excessively long and easy to twist.

The invention discloses a method for plating metal by multiple beams of continuous long carbon fibers simultaneously. At least 16 beams of continuous carbon fibers are connected in parallel, the spacing distance of the beams is 0.5-3 cm, and after being degummed and cleaned, all the continuous long carbon fibers are soaked in a plating bath for surface plating synchronously through two stages of electrolytic deposition, and are washed and dried after the second stage of surface plating; the continuous long carbon fibers enter and pass by a metal electric conduction roller at the front end of each stage of plating bath at the same time, the electric contact conditions of the continuous long carbon fibers are consistent, and the continuous long carbon fibers proceed at the same linear speed; at the same time the metal electric conduction roller is connected with a cathode of a power source to realize the connection of the continuous long carbon fibers and the cathode; and each beam of long carbon fiber is powered up by an independent power source, the current of the long carbon fiber is regulated and controlled independently, the problem of fiber winding caused by the nonuniform speed can be avoided, continuous plating is ensured, and the production efficiency of carbon fiber plating is improved.

The invention discloses a rotational joint module of a modularized reconfigurable robot. On the basis of planetary reduction, one level of harmonic reduction is added on motor output, a reduction ratio is improved, an output torque is added, and the transmission precision of the module is improved. An upper end cover and a lower end cover serve as installation joints, the flange-type design with locating seam allowances and pin holes is adopted, and the module is accurately and conveniently connected and located. All electric wires are arranged in a cage-type support, the upper end cover and the lower end cover and are isolated and protected by an outer cover, thereby avoiding the problem that the electric wires are coiled when a robot moves. Mechanical limit and electric limit are arranged in the module. On the basis of adopting an incremental coded disc, a rotating potentiometer is added to measure the assistant position of module movement, absolute position information is recorded under the condition of accidental power failure, and the system can continuously work after being electrified. The rotational joint module has the advantages of reasonable and simple structure, high precision and inner routing, is convenient to install and position and is safe and reliable to use.

The invention relates to an ornithopter provided with three-degree-of-freedom wings, belonging to the field of bionic ornithopters. The ornithopter comprises a left front regulation and control mechanism and a right front regulation and control mechanism as well as a left rear regulation and control mechanism and a right rear regulation and control mechanism which are respectively distributed at the left side and the right side of a fuselage in a way of being symmetrical in pairs and can move independently. The ornithopter can closely imitate the three movements such as flapping, turning around and sweeping front and back of wings of a flying bird by means of mutual cooperation of the front regulation and control mechanisms and the rear regulation and control mechanisms, so that enough thrust force and lift force are provided for the ornithopter. The ornithopter is flexible, and the flight efficiency is high; if being provided with equipment such as image transmission equipment, the ornithopter plays a significant role in the fields such as aerial photography, geographic survey, traffic duty, military investigation as well as emergency rescue and disaster relief.

The invention provides a six-traction device space debris net capture system which adopts level-1 launch and mass blocks synchronization launch and concentric circles rope net folding and receiving. The system comprises a launch subsystem which is composed of a launcher, a net hold, a cushioning device and a tether tension control device; a fly net subsystem which is composed of a rope net and mass blocks; the launcher is used for pushing the mass blocks at a predetermined distance from a target at a predetermined angle and to drive the rope net be pulled from the center of the net hold while unfolding to a fully unfolded state to capture the target after reaching the target location; the mass blocks are used for dragging the rope net so that the rope net is pulled out and unfolded and the net opening is tightened up to complete capture of the target; the number of the mass blocks is at least three and six mass blocks are adopted through optimized analysis; the tether tension control device is connected with the fly net subsystem and with the target through the rope net to pull the captured target off the track; the rope net is encapsulated in the net hold in a concentric circles package and is used to form sufficient coverage to completely surround the target.

The invention discloses a numerical control plasma six-shaft five-linkage groove cutting machine. A rotating motor is installed on the top of a case of a host machine and connected with a ball screw rod in the case; the upper end of the ball screw rod is provided with a small gear, and the middle is in thread connection with a sliding block; one end of the sliding block is matched with a concave-convex groove of a vertical guide rail on the side wall of the case, and the other end is connected with a reset approaching switch; the reset approaching switch corresponds to a limiting block on the side wall of the case; the case is also provided with a hollow rotating shaft, and a big gear is connected to the rotating shaft; the big gear is meshed with the small gear; the lower end of the rotating shaft is fixed to the upper end of a C-shaped connecting piece; a reduction box driven by a swinging motor is installed on the C-shaped connecting piece and meshed with a semicircular rack by the gears; a cutting torch seat is installed on the rack; a cutting torch clamp is arranged on the contact surface of the cutting torch seat; a magnet is inlaid on the contact surface of the cutting torch seat; and a touch resistant approaching switch is vertically installed in a through hole of the clamp. The invention has the characteristics of accurate rotary resetting, verticality online compensation and high cutting precision.

The invention relates to a seismic data processing method, particularly relates to a full waveform inversion velocity field modeling method, and provides a reflected wave waveform inversion method based on a phase correction objective function. A new objective function is obtained through changing the traditional phase calculation method, and a corresponding adjoint seismic source is solved by using an adjoint state method; the objective function is optimized by an optimization method to obtain an effective background velocity field; and finally, in combination with the traditional waveform inversion, a high-precision velocity field modeling result is obtained. In view of the problem of instability of the traditional phase inversion method, the traditional phase wrapping problem is avoided, and through separation between phase and amplitude information, the corresponding objective function has higher global convergence; and middle and low wave number components in the deep layer of themodel can be effectively updated, an accurate initial model is provided for full waveform inversion, and dependence on the initial model by full waveform inversion can be effectively reduced.

The invention relates to a buoy three-anchored mooring gear and a deployment recovery method thereof, the mooring gear comprise buoys and three sets of uniform distributed bower anchor systems and is characterized in that the mooring gear further comprises three buoyancy pontoons which are respectively connected with the three sets of bower anchor systems and a segment of back anchor system which is connected with the three corresponding buoyancy pontoons, and the mooring gear reaches above the buoys by connecting shackles and the other segment of back anchor system. The deployment and recovery method includes that: firstly the buoyancy pontoons are connected with the bower anchor systems, each set of buoyancy pontoons and bower anchor systems are deployed at the expected deployment spot via 120 degrees by employing work boats, the buoys are pulled to the central position of the three sets of buoyancy pontoons and bower anchor systems, then the back anchors are docked by using connecting shackles, and the deployment of underwater instruments can be started; In the time of recovery, firstly the shackles are taken off to separate the back anchor systems, then the buoys, the underwater instruments, the recycling buoyancy pontoons and the bower anchor systems are respectively recovered. The invention executes the complex project step by step, requirements on the work boats are largely reduced, and the invention has the advantages of simple operation and precise deployment, and the problem of the entrapping of cables and anchor chains is comparatively eliminated.

The invention relates to the field of agricultural machinery, and discloses a sugar cane harvester and a sugar cane harvesting method. The sugar cane harvester comprises a harvester body and two sets of harvesting mechanisms, wherein two sets of harvesting mechanisms are symmetrically arranged on the two sides of the harvester body; each set of harvesting mechanism comprises a spiral sugar cane supporting device, a cutting device, a clamping device, a conveying mechanism and a leaf remover; the clamping device comprises an upper clamping chain and a lower clamping chain; a clamping passage is formed between the upper clamping chain and the lower clamping chain; the spiral sugar cane supporting device is arranged in front of the upper clamping chain; the cutting device is arranged between the upper clamping chain and the lower clamping chain; the conveying mechanism is connected with the clamping passage and the leaf remover. Through the two sets of harvesting mechanisms, the sugar cane harvester can harvest two rows of sugar canes at the same time; in the harvesting process, the sugar cane harvester supports and gathers the sugar canes through the spiral sugar cane supporting device firstly, cuts the sugar canes, and feeds the sugar canes into the leaf remover by clamping and lifting, so that the working efficiency of the sugar cane harvester is improved, and the steering time and the steering times of the sugar cane harvester in a field are reduced; a telescopic poke rod barrel is arranged at the top of the upper clamping chain, so that the problem of winding of sugar crane leaves is avoided and the feeding process is smooth.

An equipment for on line measuring and controlling the water content of moulding sand in its mixing procedure is composed of a water sensor inserted in the sand being mixed, an electromagnetic valve and a water flowmeter, which are installed to water tube, and a computer. Its method includes such steps as detecting the water content information by sensor, receiving it by computer, comparing it with the predefined water content to determine the needed water, and controlling electromagnetic valve and flowmeter to adding it to sand.

The invention discloses a vertical annular welding tool. The vertical annular welding tool comprises a rotatable platform and a hollow upright column, wherein the hollow upright column is perpendicular to the rotatable platform and sleeves the rotatable platform via a clearance; a gas guiding ring, a conductive ring and a ground wire grounding copper ring sleeve the upright column; a gas circuit, an electric control circuit and a welding ground wire are arranged in a hollow cavity of the upright column; a workpiece positioning mechanism is fixed on the upper portion of the upright column; and a wire feeding machine and a welding gun mechanism are fixed on the rotatable platform. Rotating power is provided by using a speed reducer; circuit transmission is carried out by using the conductive ring; and gas is turned on, turned off and changed over via the gas guiding ring, the welding gun can be adjusted multi-dimensionally in space, namely, the welding gun can be adjusted in the up-down direction and the left-right direction at an angle, annular welding between tubes, annular welding between a tube and a flange and annular welding between a tube and a plane can be performed, the product differentiation switching efficiency and the welding quality are improved, the welding angle and the welding speed can be freely adjusted, annular welding can be performed rotatably without limitation, workpieces do not need to rotate, and the time can be greatly saved. The vertical annular welding tool is suitable for annular welding between the tubes, annular welding between the tube and the flange and annular welding between the tube and the plane, or is suitable for welding an arc.

The invention discloses a hanging cabin type jetting vector propeller for an all-rotation pump. The hanging cabin type jetting vector propeller for the all-rotation pump is simple in structure, high in integration degree and high in safety performance, is assembled and disassembled flexibly, and is controlled flexibly and variously; and the work efficiency is improved. The hanging cabin type jetting vector propeller for the all-rotation pump comprises a controller (1), a hanging arm (2), a motor (3) and an impeller (5), wherein the motor (3) is fixedly arranged below the hanging arm (2) and is electrically connected with the controller (1); the impeller (5) is arranged on an output shaft (4) of the motor (3); the upper end of the hanging arm (2) is in transmission connection with a 360-degree steering engine (6); and the 360-degree steering engine (6) is electrically connected with the controller (1). The hanging cabin type jetting vector propeller for the all-rotation pump is applied to the technical field of ship vector propellers.

The invention provides a circular steel tube welding machine. The circular steel tube welding machine comprises a supporting mechanism, a jacking mechanism and a welding mechanism. The supporting mechanism comprises two supporting bases, a supporting drive assembly is arranged below the supporting bases, and the two supporting bases can vertically rise and fall under control of the supporting drive assembly. The jacking mechanism comprises two edge movable plates, a thimble is mounted on the inner side face of each edge movable plate, and two sets of jacking drive assemblies are arranged on abase and used for controlling the two edge movable plates to synchronously and reversely move in the horizontal direction. The welding mechanism comprises a supporting disc, a drive disc and a weldinggun disc. One side of the drive disc is rotationally mounted in the supporting disc, and the other side of the drive disc is fixedly connected with the welding gun disc. According to the welding machine, circular steel tubes are welded by rotating a welding gun, the efficiency is high, as the circular steel tubes are static in the welding process, the circular steel tubes are firm and stable after being welded, and the strength of the positions of weld joints is high.

The invention relates to an impeller for a washing machine and a washing machine using the impeller. The impeller for the washing machine comprises a big impeller which is arranged on the bottom of an inner cylinder of the washing machine, wherein the big impeller is connected with a driving device of the washing machine; a small impeller is arranged in the center of the big impeller; and the small impeller rotates and performs up-down vertical reciprocating motion relative to the big impeller through a linking mechanism. When more washing loads are washed, the small impeller can achieve an auxiliary washing effect, so that the cleaning rate is improved. The small impeller can also perform up-down vertical reciprocating motion when rotating so as to scatter load cloth, so that the problem about the tangling when the loading capacity is high is well solved, and the cleaning effect when the loading capacity is high is improved; meanwhile, the turning effect of the loads in the washing process is remarkably improved.

The invention provides a novel micro multi-functional acupoint massage probe with a high integration degree. The probe comprises a shell, a gear wheel, a rack, a massage head, an electronic probe, a probe spring, a massage head spring, a control panel, a prompter, a prompt lamp and so forth, wherein the gear wheel, the rack, the probe spring, the massage spring, the control panel, an elastic conductive electrode, a massage motor, a motor, a rotatable slide conductive electrode and an eccentric rotation block are installed in the shell. The acupoint massage probe provided by the invention is characterized in that the rack, the massage head, the electronic probe, the probe spring, the control panel, the prompter, the prompt lamp, the elastic conductive electrode and so forth are highly and skillfully integrated. The massage probe has the advantages that the structure is simple and compact; the cost is low; the whole system has ultrahigh operational stability, an ultra-long service life, and high manufacture convenience; and because of the compact structure, multiple functions of detection, massage, acupressure, beating, acupuncture and moxibustion, thermal therapy and the like can be integrated on the same massage head easily, and the functions can be implemented in a full-automatic manner.

The invention discloses an extendable artificial fish nest. The extendable artificial fish nest comprises a fixed pile, a floating frame and fish roe laying inhabitation units; the floating frame is fixedly arranged on the fixed pile; the floating frame is provided with a floater; the fish roe laying inhabitation unit comprises a fixed round ring, a plurality of matrix units and an artificial fish reef; each matrix unit comprises a suspension rope, a suspension round ring, a lock catch A and an adhering matrix; the lock catches A are fixed at the upper ends of the suspension ropes and the suspension round rings are fixed at the lower ends of the suspension ropes; the adhering matrixes are fixed in the middles of the suspension ropes; lock catches B are arranged at the tops of the artificial fish reefs; each matrix unit is mounted in sequence from top to bottom; the adjacent matrix units are connected in a matching manner through the lock catches A and the suspension round rings; the matrix unit located on the uppermost side is buckled on the fixed round ring; the artificial fish reef is buckled on the matrix unit located on the bottommost side; the plurality of fish roe laying inhabitation units are suspended on the floating frame; the fixed round ring of each fish roe laying inhabitation unit is fixedly arranged on the floating frame. The artificial fish nest is simple in structure and ingenuous in design, has diversified functions and is convenient to mount and detach.

The invention discloses a device for cutting hair, a floor drain with the device and a working method of the device. The device comprises a shell, a hydroelectric generator, a circuit board, a rotating motor and a blade shell, wherein water through holes are formed in the shell; the hydroelectric generator is mounted on the shell and is provided with blades; the circuit board is mounted on the shell and is electrically connected with the hydroelectric generator; the rotating motor is mounted on the shell and is electrically connected with the circuit board; a blade component with a plurality of blades is assembled on the shell and in transmission connection with the rotating motor; and the rotating motor is rotated to drive the blade component to move leftwards and rightwards to cut hair which flows in from the water through holes. The device has the advantages that when articles such as hair flow into the device from the water through holes, the hair is cut into small fragments through a shearing effect of the blades and edges of the water through holes and is carried away by water flow, then the hair is not wound around different components, and the floor drain is not blocked. In addition, due to adoption of the hydroelectric generator, power can be generated with water flow, steps of external power supply connection or foot stamping are avoided, and thus the device is simple and energy-saving.

The invention relates to a submersible cutting sewage pump with efficient hydraulic performance and belongs to the technical field of submersible pumps. The submersible cutting sewage pump comprising a submersible motor is characterized in that the submersible motor is connected with a pump body below through a connection segment to form a cooling and lubricating oil chamber; an efficient large-pass semi-open impeller having a rear cover plate is disposed in the center of the lower portion of the pump body; an inlet edge of each impeller blade is provided with a 30-45-degree large guiding tilt angle from the rear cover plate and a front cover plate, and a center line of an impeller blade outlet pass is flush with a center line of a radial outlet of the pump body; the lower end face of the pump body is connected with a pump base, a cutting disc which is axially adjustable is connected to the upper portion of the pump base, the cross section of the upper end of the cutting disc is completely the same as a flow surface of the front cover plate, projecting to the impeller blade axial surface, in shape, and a 0.2-0.3 mm required gap can be formed between the upper end of the cutting disc and the flow surface of the front cover plate, projecting to the impeller blade, by adjusting axial movement of the cutting disc. The submersible cutting sewage pump is high in hydraulic efficiency, has a wide efficient area, allows suctioning and passage of large particles, and has good effect of impurity cutting and tearing.

The invention relates to a deeply digging, cultivating and seeding unit which is mainly comprises a stand 1, a rotary cultivator 2, a deeply digging shovel 3, a fertilizing machine 4, a seeding machine 5, a compacting machine 6, a machine 19 for returning straws to the field, and the like, wherein the machine 19 for returning the straws to the field is directly installed on the stand and is positioned in front of the rotary cultivator 2; the rotary cultivator 2 mainly comprises a speed changing box 7, a rotary blade shaft 8, rotary blades 9 and the like which are installed at the lower part of the stand 1; the deeply digging shovel 3 is fixed on the beam of the stand through a U-shaped bolt, is installed at the front part or the back part of the rotary blade shaft, and passes through the gap between two adjacent rotary vades of the rotary cultivator 2; the fertilizer box of the fertilizing machine 4 and the seed box of the seeding machine 5 are fixed above the stand 1; the fertilizing machine and the seeding machine are installed at the back part of the deeply digging shovel 3; and the compacting machine 6 is installed at the back part of the whole unit.