2634results about How to "Evenly distributed" patented technology

A hybrid lubricating module includes a housing and an assembly which consists of at least two elements and has an axial hole run through by a shaft. At least one of the elements has one set of multiple notches on one end surface communicating with the axle hole. The housing has a through axial cavity to encase the assembly. The outer wall surface of the assembly and the inner wall surface of the housing are assembled to each other to form at least one storage chamber to store lubricating media. The multiple notches on at least one adjacent element form at least one set of fine flow passages communicating with the axial hole and the storage chamber.

The invention discloses a production method of distiller's grain fermentation liquid fertilizer specially applied to roxburgh rose. The distiller's grain fermentation liquid fertilizer is prepared bythe step of evenly mixing 50 to 80 parts of distiller's grain fermentation extracting solution, 0.5 to 1 part of microelement, 5 to 10 parts of seaweed meal, 5 to 10 parts of natural active organism,2 to 5 parts of potassium bicarbonate, 2 to 5 parts of natural active organism and 2 to 5 parts of natural surface active agent. A preparation method of the distiller's grain fermentation extracting solution comprises the steps: evenly stirring 50 to 80 parts of distiller's grain, 50 to 150 parts of rice washing water, 1 to 2 parts of EM microflora fermentation liquid and 0.5 to 1 part of sugar, performing composting fermentation at the room temperature to obtain a distiller's grain fermentation material, stirring and extracting through a sodium carbonate water solution, filtering and performing evaporation and condensation on obtained filtrate until the density is 1.1 to 1.2 to obtain distiller's grain fermentation extracting solution. The distiller's grain fermentation liquid fertilizerdisclosed by the invention has a good use effect, meanwhile can effectively prevent pest and disease damage to the roxburgh rose and is high-efficiency environment-friendly liquid fertilizer.

The invention discloses a digital electroencephalograph, and belongs to the technical field of brain-computer interface signal processing. An electroencephalogram signal processor of the digital electroencephalograph acquires digital neural signals of a plurality of channels for a target object, wherein the digital neural signals comprise LFP signals and pulse signals; performing feature extraction on the two signals based on a unified time window and a sliding step length, and integrating a time-aligned feature matrix into a first fusion feature tensor; performing dynamic normalization processing on the first fusion feature tensor, wherein the statistical magnitude is updated along with the change of the input data; and n parallel LSTM networks are used to decode the normalized second fusion feature tensor to obtain n decoding results of different dimensions, the n LSTM networks are mutually independent, and each LSTM network has an independent optimizer and an independent parameter. According to the method, multi-modal features can be aligned in time, signal drift is compensated, decoding robustness is improved, and inter-task optimization decoupling and personalized training are achieved through independent parameters and an optimizer.

The invention relates to the technical field of semiconductor manufacturing. The invention specifically relates to a semiconductor wafer cleaning system and a semiconductor wafer cleaning method. The semiconductor wafer cleaning system comprises a cleaning liquid supply system and a cleaning and drying integrated chamber. The cleaning liquid supply system is suitable for providing supercritical carbon dioxide cleaning liquid for the cleaning and drying integrated chamber; the chamber comprises a chamber shell communicated with the cleaning liquid supply system; a wafer supporting module; the cleaning liquid spraying pipe is distributed on at least one side of the inner wall of the cavity shell and is suitable for spraying the supercritical carbon dioxide supplied by the cleaning liquid supply system to the wafer; the drying heating pipes are distributed on at least one side of the inner wall of the chamber shell and are suitable for heating the temperature in the chamber space so as to maintain the supercritical state of the carbon dioxide to be stable; and the main heating part is suitable for heating the environment temperature in the cavity space so as to dry the wafer after cleaning. Supercritical carbon dioxide is used for cleaning the wafer, the cleaning and drying steps are completed in one cavity, high efficiency is achieved, and impressions are not prone to being left.

The invention discloses an energy storage cluster auxiliary thermal power frequency modulation and peak regulation collaborative optimization method considering dynamic balance, and belongs to the technical field of power system operation and control. Comprising the following steps: constructing a double-layer collaborative optimization control model; comprising the following steps: an energy storage cooperative thermal power frequency modulation and peak regulation power distribution layer introduces a frequency modulation demand in a peak regulation process, designs a power distribution and frequency modulation distribution strategy for peak regulation and peak regulation stages, and completes thermal power-storage frequency modulation and peak regulation power distribution by constructing a thermal power-storage frequency modulation and peak regulation power optimization distribution model; the multi-type energy storage power station power distribution layer constructs a multi-type energy storage power station power optimization distribution model by adopting a dynamic equilibrium coefficient; obtaining an energy storage power station power distribution value and an SOC state through a target function of the multi-type energy storage power station power optimization distribution model; and performing optimization scheduling on the new energy power system based on the power distribution value of the energy storage power station and the SOC state. According to the invention, the balance control of the calling degree and the SOC of the multi-type energy storage power station is realized.

The invention discloses a geogrid and EICP synergistically reinforced soil embankment structure and a construction method, and relates to the technical field of soil embankment structures. Comprising a pavement base layer, an embankment bearing layer and a natural soil foundation layer, and the natural soil foundation layer is used as a soil embankment structure support and is arranged at the bottommost layer; the pavement base layer is used for bearing an upper driving load and uniformly transferring the upper driving load to the embankment bearing layer below; and the embankment bearing layer is used for bearing the upper load transmitted by the pavement base layer. The engineering performance is improved through the multi-layer synergistic effect, the core reinforcing layer is of an innovative space grid structure and is composed of a prefabricated geogrid, a grid support arranged in the inclined direction and a rigid stress plate frame, a three-dimensional force transmission network is formed, the limitation of a traditional reinforcing method is broken through, and the engineering performance is improved. In addition, the grating support is arranged at a specific angle, the structural rigidity is guaranteed, and the stress concentration phenomenon is avoided.

The invention discloses a micro-channel reactor and micro-channel reaction equipment, the micro-channel reactor comprises a reaction plate, a support transition plate and a heat exchange plate which are connected in a laminated manner, grooves are processed in the reaction plate to form micro-reaction channels, grooves are processed in the heat exchange plate to form heat exchange channels, and the support transition plate is separated between the reaction plate and the heat exchange plate; the micro-reaction channel comprises at least two micro-channel units and a middle flow channel connected with the adjacent micro-channel units, each micro-channel unit comprises a flow channel inlet, a flow channel outlet and a heart-shaped mixing cavity, an arc-shaped flow baffle and at least one turbulent flow column are arranged in the heart-shaped mixing cavity, the concave side of the arc-shaped flow baffle faces the flow channel inlet, and the convex side of the arc-shaped flow baffle faces the turbulent flow column. And the turbulent flow column is arranged between the arc-shaped flow baffle and the flow channel outlet. Through cooperation of the heart-shaped mixing cavity, the arc-shaped flow baffles and the turbulent flow columns, the particle suspension rate and the mass transfer capacity of the micro-reaction channel are effectively improved, then the reaction efficiency is improved, and the device can be used for achieving continuous preparation of nano-drugs.

The invention provides a group compaction operation-oriented master-slave cooperation space-time planning control method. The method comprises the following steps of 1, determining a construction region boundary and performing equal-area grid division; 2, a road roller starting path is generated through a third-order Bezier curve and curvature constraint, and each road roller generates a local path to the starting point of the target operation area according to the initial position of the road roller; 3, performing multi-machine path coordination based on space-time constraint, performing speed assignment on each point after each road roller completes local path planning from the current position to the starting point of the target area, and calculating expected time required by path completion; 4, a real-time state synchronization and safety protection mechanism is established, all the road rollers broadcast self position information at a fixed frequency in the operation process, the real-time distance between every two road rollers (i, j) is calculated, and the safety distance is set; and the collision between the two road rollers is avoided by judging the real-time distance and the safe distance.

The present application relates to the technical field of tire simulation design, and particularly relates to an electric vehicle tire pressure sensitivity evaluation method, system, device and storage medium. The method constructs a low pressure, standard pressure and high pressure pressure disturbance working condition group under the same load, calibrates a steady-state rolling finite element model in combination with measured footprint data, establishes a same-name pattern block element mapping relationship based on a tread pattern topology, further calculates a front-rear edge difference index, a circumferential continuity index, an axial migration index and a relative standard pressure growth index, and realizes identification of shoulder dominant type and central three-zone dominant type river-like wear precursors. The scheme can provide a basis for tire inflation pressure setting, abnormal wear warning and product optimization.

The utility model discloses an automatic dust removal device of a sweeper, which comprises a dust collection base station provided with an accommodating space for accommodating the sweeper; the dust collection fan is arranged in the dust collection base station and is used for extracting dust from a dust box of the sweeper; and the exhaust structure is arranged at the air outlet end of the dust collection fan and is used for spraying air exhausted from the air outlet end of the dust collection fan to the surface of the sweeper in the accommodating space. The exhaust structure is arranged at the air outlet end of the dust collection fan, airflow at the air outlet end of the dust collection fan in the dust collection process is guided to the surface of the sweeper, automatic dust removal of the surface of the sweeper is achieved, the problem that dust on the surface of the sweeper needs to be cleaned manually in the prior art is solved, user experience is improved, and the sweeper is convenient to use. And the service life of the sweeper is prolonged.

The utility model discloses a hydrochloric acid ammonia gas corrosion test case relates to test case technical field, including test case main part, support seat, waste gas treatment tank, support seat top both sides are connected with test case main part and waste gas treatment tank respectively. The utility model discloses a ammonia gas injection pipe and hydrochloric acid injection pipe inject proper amount of ammonia gas and hydrochloric acid gas into test case main part, wherein the hydrochloric acid conduit and ammonia gas exhaust pipe correspondingly connected of ammonia gas injection pipe and hydrochloric acid injection pipe are upside down distribution in test case main part, are favorable to the full mixing of hydrochloric acid gas and the ammonia gas below, form even corrosive gas environment, this can ensure that the corrosion effect that each part in test case receives is more consistent, thereby obtains accurate test result, wherein the test case main part inner wall has been daubed anticorrosive layer coating), can effectively prevent the corrosion of hydrochloric acid and ammonia gas to test case main part inner wall.

The application relates to the technical field of non-standard storage tanks, and proposes a precise temperature control non-standard storage tank structure and a construction method, wherein the precise temperature control non-standard storage tank structure comprises a storage tank body, fixing cylinders, a material uniformizing assembly, a mounting frame, a stirring assembly, a storage tank, a heat tracing half pipe, a heating assembly and a heat exchange assembly, three fixing cylinders are fixedly installed on the storage tank body at equal angles, the included angles between the three fixing cylinders and the axis of the storage tank body are all 45 degrees, the material uniformizing assembly is installed in the fixing cylinders, the mounting frame is fixedly installed at the bottom of the storage tank body, the stirring assembly is installed on the mounting frame, the storage tank is fixedly installed on the storage tank body, the heat tracing half pipe is fixedly installed in the storage tank body, the heating assembly is installed in the storage tank, and the heat exchange assembly is installed on the storage tank, so that the problem that the substances in the storage tank are difficult to be accurately temperature controlled due to the non-uniform temperature of different areas in the storage tank in the prior art is solved.

The application belongs to the technical field of spraying, and particularly relates to a spraying tool and a spraying device for cylindrical workpieces. The spraying tool comprises a frame body, a transmission chain, a plurality of chain wheels, a driving system and a plurality of columnar positioning structures. The plurality of chain wheels are rotationally arranged on the top of the frame body, the transmission chain is engaged with the plurality of chain wheels to form a closed conveying route, the driving system is drivingly connected with at least one chain wheel, and the plurality of columnar positioning structures are distributed along the upper side of the transmission chain. The columnar positioning structure is used for inserting and fixing the cylindrical workpiece in an upward positioning posture. The spraying tool realizes vertical insertion and continuous conveying of the cylindrical workpiece, effectively avoids the shaking problem caused by single-point suspension of the traditional suspension tool, and significantly reduces the risk of collision between the workpieces and the collision of the spray gun. Meanwhile, the workpiece is sprayed in a vertical posture, which is beneficial to uniform distribution of the paint and improves the consistency of the coating thickness.

The application relates to the technical field of zirconium-niobium alloy material processing, in particular to a preparation method of a large-diameter zirconium-niobium alloy pipe for nuclear industry, which comprises the following steps: S1, mixing nuclear-grade sponge zirconium and niobium scraps, or mixing zirconium-niobium alloy, zirconium dioxide and iron; melting the mixture and preparing a zirconium-niobium alloy ingot; S2, sequentially performing large deformation forging in a beta single-phase zone and an alpha+beta two-phase zone; S3, drilling a central hole in the axial direction of a round-forging blank; quenching in the beta single-phase zone; S4, coating an anti-galling agent on the surface of the central hole and heating to prepare a pipe blank in the mode of cross piercing; S5, performing periodic forging and rolling on the pipe blank; S6, annealing the hot-rolled pipe twice; and straightening the hot-rolled pipe after the second-stage annealing. The zirconium-niobium alloy pipe has uniform microstructure, good mechanical properties and corrosion resistance, the production direction of the brittle hydride is nearly parallel to the circumferential direction of the pipe, and brittle damage of the pipe wall thickness caused by the crack propagation of the hydride is avoided.

The utility model discloses a kind of for building decoration tool's cleaning device, it is related to cleaning device technical field.The utility model includes cleaning tank, motor is fixedly connected in cleaning tank inner wall, motor top output end is fixedly connected with rotating plate by coupling, the rotating plate top is fixedly connected with several agitating blocks, and the agitating block is annular array with rotating plate as center.The utility model is through setting spoiler, specifically is motor starting driving rotating plate rotation, then again through rotating plate rotation to drive agitating block rotation, when agitating block rotation, inside water flow rotation will be stirred, when water flow rotation, it will impact on spoiler, so that the direction of water flow changes, causes water flow to appear disorder, then again through the friction between the water flow of disorder and tool to clean, simultaneously make that cleaning fluid can evenly distribute on tool surface, improve work efficiency, realize the uniform cleaning of tool.

This utility model discloses a wire harness sheath airtightness testing device, comprising: a testing box, a box cover on the top of the testing box, an air pump fixedly connected to one end of the top of the box cover, a fixed structure at one end of the air pump, a driving mechanism on one side of the testing box, a gas sensor fixedly connected to the inner side wall of the testing box, a pressure sensor fixedly connected to the other inner side wall of the testing box, a detector fixedly connected to one end of the outer side of the testing box, a vacuum pump fixedly connected to the back of the testing box, and an extraction pipe fixedly connected to the vacuum pump's extraction port. During installation, the wire harness sheath is simply placed on the connecting pipe. After inflation, the gas pressure expands the sealing ring, automatically pressing the sheath into the groove to form a tight seal, eliminating the need for manual stretching. When helium is filled, the sheath naturally straightens, ensuring uniform gas distribution and avoiding testing errors caused by traditional stretching. The system is equipped with an electric push rod for one-button opening and closing of the box cover, and features a detachable bolt design for easy maintenance.

This application discloses an intelligent reflective surface and a covert communication system, belonging to the field of wireless communication technology. The intelligent reflective surface includes multiple intelligent reflective surface units arranged in an array; each intelligent reflective surface unit includes: a first substrate, a second substrate, and a third substrate; a metal patch and a varactor diode, located on the side of the third substrate opposite to the second substrate; the metal patch includes a first patch and a second patch, and the varactor diode is located between the first patch and the second patch, with its negative and positive terminals electrically connected to the first patch and the second patch, respectively; a metal ground plane, located between the first substrate and the second substrate; a first bias line and a second bias line, located on the side of the first substrate opposite to the second substrate; the first bias line is electrically connected to the metal ground plane and the first patch, respectively, and the second bias line is electrically connected to the second patch. This application can achieve precise control of electromagnetic waves, reduce electromagnetic energy loss, improve energy transmission efficiency, suppress electromagnetic wave leakage, and improve communication covertness.

The utility model discloses an inductive heating type low carbon stove structure, including metal muffle, front gas seal, rear gas seal, water -cooling induction coil and induction power supply, the front gas seal and rear gas seal of two ends fixed mounting of metal muffle are described, water -cooling induction coil all enclose in metal muffle outer surface, induction power supply is connected with water -cooling induction coil. The utility model discloses good solution traditional heating mode through the problem of low efficiency, big heat loss of heat loss, is a kind of energy -conserving type low carbon muffle structure, and control, feedback is more direct sensitive and high accuracy.

The invention relates to the field of data processing, in particular to a data transmission quality optimization method and system for an intelligent ammeter, and the method comprises the steps: obtaining a historical sensitivity sequence and a secret key updating record of each ammeter, and constructing a transmission sensitive vector; clustering the electricity meter groups and endowing sensitive grades to the electricity meter groups; dividing a transmission period into a plurality of time slots, establishing corresponding transmission scheduling groups, and distributing the ammeters to the groups according to the sensitivity levels to form an initial scheduling scheme; collecting network and computing resource states and computing resource pressure at the beginning of the current transmission period; and comparing the resource pressure with double thresholds, taking the sum of the transmission sensitivities of the electric meters in the group as a load according to a comparison result, dynamically adjusting the corresponding sequence of each transmission scheduling group and the transmission time slot according to the load, and issuing a transmission instruction. According to the invention, through a double-layer scheduling mechanism combining historical behavior grading and real-time resource perception, peak shifting transmission of the electricity meter group is realized, and the processing efficiency of the concentrator is remarkably improved.

The application relates to the technical field of cables, and discloses an insulated high-temperature superconducting cable and a preparation method thereof. The insulated high-temperature superconducting cable comprises, from inside to outside, a lining core, a superconducting conductor, an insulation layer, a shielding layer, a heat insulation pipe and a sheath layer. The raw material of the sheath layer comprises the following components in parts by weight: 100 parts of polyvinyl chloride, 10 to 15 parts of ethylene-vinyl acetate copolymer, 4 to 6 parts of silicone rubber, 20 to 30 parts of composite filler, 5 to 8 parts of compatilizer, 2 to 5 parts of stabilizer and 6 to 10 parts of plasticizer. The raw material of the composite filler comprises the following components in parts by weight: 40 parts of palygorskite powder, 2 to 5 parts of chitosan and 4 to 8 parts of vinyl chloride-methyl methacrylate copolymer. The palygorskite powder, the chitosan and the vinyl chloride-methyl methacrylate copolymer are compounded to form the composite filler, and the composite filler is added into the cable sheath layer, so that the mechanical properties of the cable sheath layer can be effectively improved.

The application discloses a mesoporous carbon preparation process with recyclable silicon source and mesoporous carbon with small pore size and large specific surface area. The mesoporous carbon preparation process comprises the following steps: preparing a silicon template: reacting a fluosilicic acid solution with calcium carbonate, and separating calcium fluoride precipitate and silica sol; the pH of the silica sol is 2-5; the concentration of silicon dioxide in the silica sol is 1-8 wt%; preparing a precursor: dissolving a carbon source and an organic acid in the silica sol, drying, grinding, and carbonizing in an inert atmosphere to obtain a C / Si precursor; the organic acid comprises at least one of oxalic acid, tannic acid, acetic acid and citric acid; removing the silicon template and recycling the silicon source: treating the C / Si precursor with hydrofluoric acid, and performing solid-liquid separation to obtain mesoporous carbon and a fluosilicic acid solution, wherein the fluosilicic acid solution is used for preparing the silicon template. The specific surface area of the mesoporous carbon is greater than 800 m 2 / g, and the pore size is less than 6 nm.

This utility model discloses a cream whipping device for cake processing, including a whipping bucket. The whipping bucket comprises an outer bucket with an opening at the top and an inner bucket. The inner bucket is detachably embedded in the outer bucket, and a cavity exists between the outer and inner buckets. The top of the inner bucket has a flange, and symmetrical insertion rods are arranged at the bottom of the flange. A connecting block is provided at the upper end of the outer bucket corresponding to the position of the insertion rods, and the connecting block has a slot for inserting the insertion rods. A retaining block is also elastically provided at the bottom of the insertion rods. This utility model, through the cavity formed by the gap between the outer and inner buckets, and with an inlet and outlet, allows for the introduction of cooling or heating media, thereby indirectly exchanging heat with the cream in the inner bucket. This effectively avoids temperature rise caused by changes in ambient temperature and heat generated by mechanical friction, ensuring that the cream is always within the optimal whipping temperature range.

This utility model discloses a mud crab spawning and hatching device, including a cement pool, which comprises a pool body with a permeable stone slab at the bottom. A hole is opened at the bottom right side of the pool body, and a drain pipe is installed inside the hole. A water supply component includes a water quality sensor located on the left side of the pool body. An air supply component includes a dissolved oxygen sensor located at the front of the pool body. A heating component includes a temperature sensor located at the front of the pool body. A movable component is installed at the top of the pool body, with a polycarbonate panel fixedly connected to its inner side. This utility model, through the structural design of water quality, dissolved oxygen, and temperature sensors, combined with water supply, air supply, and heating systems, can monitor and adjust key environmental parameters in the hatching pool in real time. The water quality sensor, linked to a solenoid valve, intelligently changes water to prevent water quality deterioration. Microporous aeration heads uniformly increase oxygen, ensuring balanced dissolved oxygen distribution. Heating pipes, in conjunction with the temperature sensor, maintain a stable water temperature.

The application provides a ginseng fungus solid culture medium automatic bagging equipment, which comprises a blocking ring fixed to the end port of a discharge pipe, a pressing ring is sleeved on the discharge pipe, the pressing ring and the blocking ring have a pressing surface with equal slope, and an adjusting ring is screwed on the discharge pipe, the adjusting ring can drive the pressing ring to move towards the blocking ring to compress the bag opening of the growth bag. The application drives the pressing ring to move close to the blocking ring by rotating the adjusting ring, so as to fix the growth bag at the end port of the discharge pipe, and the convenience of fixing the growth bag is improved.

The invention relates to the technical field of batteries, in particular to a battery pole piece, a preparation method of the battery pole piece, a lithium ion battery and an electric vehicle. The battery pole piece comprises a foil and an electrode material layer which are arranged in sequence, the material of the electrode material layer comprises manganese-cobalt-nickel oxide, the chemical general formula of the manganese-cobalt-nickel oxide is MnxCoyNizO, x is equal to 0.2-0.4, y is equal to 0.2-0.4, z is equal to 0.4-0.6, and x + y + z is equal to 1. The invention aims to improve the low-temperature performance of the battery without influencing the performance of the battery in a high-temperature environment.

The utility model discloses a kind of efficient paint mixing and stirring device, comprising: bearing frame, the surface of the bearing frame is fixedly connected with pull ring;Stirring assembly, one side of the stirring assembly is fixedly connected with bearing frame surface side, the stirring assembly is for the sufficient stirring mixing of paint;Vacuum component, one side of the vacuum component is communicated with the surface of stirring assembly, the utility model relates to stirring device technical field.The efficient paint mixing and stirring device, by the setting of vacuum component, by the setting of vacuum pump, the mixed bubble inside load barrel is directly vacuumized, effectively removes internal air, and the paint splashed in the process of vacuumizing is blocked and filtered using filter core, to avoid its random into suction duct, filter core bottom inverted cone, avoid paint adhering on filter core surface, spring can complete its push compact, pull handle rod can be pulled apart, convenient operation.

The application discloses a device for measuring photochemical production rate of active gas in ambient atmosphere, and relates to the fields of atmospheric environment monitoring and automatic control. The device is composed of an air inlet module, a photochemical reaction device, a wideband high-precision cavity measurement system and a control system. The air inlet module injects pure ambient atmosphere or mixed atmosphere with added reaction gas into the photochemical reaction device; the photochemical reaction device is a place where the ambient atmosphere or the mixed atmosphere performs photochemical reaction to produce active gas; the wideband high-precision cavity measurement system samples the mixed atmosphere containing active gas and measures absorption photoelectric signals; and the control system receives the absorption photoelectric signals and performs calculation and processing to obtain the production rate of the active gas. The application has the advantages of automatically and quickly switching to measure the production rate of active gas under photochemical and non-photochemical conditions, and can accurately measure the production rate of active gas outdoors or in a laboratory.

This utility model relates to the field of material forming and processing technology, and discloses an extrusion device for manufacturing the shell of inspection equipment. It includes a base plate, a mold first fixedly connected to the top right side of the base plate, support plates first fixedly connected to both the front and rear ends of the top right side of the base plate, a support plate second fixedly connected to the top right side of the base plate near the edge, a motor second fixedly connected to the top of the support plate second, a pinion gear fixedly connected to the top output end of the motor second, a toothed strip meshing with the outer wall of the pinion gear, and a U-shaped frame fixedly connected to the left side of the toothed strip. In this utility model, the rotation of the pinion gear driven by the motor second, and the movement of the U-shaped frame driving the movement of the mold second, enable rapid descent for compression molding, shortening the compression molding cycle. Furthermore, by using different molding dies, various profiles can be produced to meet the basic material requirements of different inspection equipment shells.

The application discloses a kind of full-automatic mower, and the application relates to the technical field of mower.The full-automatic mower, including vehicle body, vehicle body end face symmetry fixedly connected with support, two supports are commonly provided with segmented cutting grass part for segmenting cutting and crushing according to grass height, cutting grass unit includes the mounting frame of being fixedly connected between two adjacent slide columns and being C-shaped, grass crushing assembly is arranged in mounting frame, and feeding assembly for gathering grass together and introducing into grass crushing assembly while cutting grass is installed in the lower part of mounting frame, the present application adjusts the interval flexibly according to the height of grass by cutting grass unit, and the upper and lower staggered arrangement is adopted in ladder shape, so that the upper half and the lower half of tall grass are harvested in turn, to avoid being trampled and missed cutting, improve the integrity of single operation, then the cut grass clippings are refined and crushed again and evenly discharged by uniform discharge, to ensure that the grass clippings are shorter and evenly distributed, to greatly improve the effect of fine crushing and returning to field.

The utility model relates to the technical field of bubble generator, and disclose a kind of suspended underwater micro-nano bubble generator, including adjustable support mechanism, bubble generating mechanism and external protection mechanism;Bubble generating mechanism is by multistage water pump, inlet pipe, one-way water inlet valve, connecting pump, transport pump, high-speed rotary cutting nanometer bubble pump, conveying pipe and aeration head etc., and is connected by thread seal sleeve to realize pipeline sealing connection.Mainframe box is equipped with buoy, internal and external pressure monitoring sensor, can realize underwater suspension and pressure real-time monitoring.Adjustable support mechanism can adjust equipment installation height, and external protection mechanism is realized waterproof anti-collision protection by protective shell, sealing washer and protective fence.The device adopts multistage water pump to match double high-speed rotary cutting nanometer bubble pump, can accurately control fluid flow rate and pressure, generates bubble particle size uniform, dissolved oxygen efficiency is high, with the characteristics of intelligent control, anticorrosive durable, protective, suitable for water purification, aquatic ecological restoration etc.