103results about How to "Avoid disorder" patented technology

The invention provides a construction method and device for a local knowledge graph, and the construction method comprises the steps: extracting a first concept from the multi-text data of a local database, and carrying out the classification and layering of the first concept; and confirming and supplementing the classified and layered first concepts, and optimizing the first concepts into a plurality of second concepts. And segmenting multi-text data into a plurality of text paragraphs in advance, and matching and associating the text paragraphs with the second concept. And respectively extracting a plurality of local concepts and relationships thereof from the associated text paragraphs, and constructing an entity relationship multi-tuple. And integrating similar local concepts in the entity relationship multi-tuple into the same local concept. And analyzing the similarity of all the relationships in the plurality of entity relationship multi-tuples, and evaluating the relevance among all the entity relationship multi-tuples. And based on this, obtaining the constructed knowledge graph. According to the semi-automatic construction method and device, on the basis that expert knowledge is well utilized, the method does not excessively depend on manual construction rules, and the reasoning and understanding ability of a large model is utilized to the maximum extent.

The present invention relates to a thermal bubble type inkjet printer, comprising: a recording head having a plurality of nozzle rows for ejecting inks of a plurality of colors, the recording head reciprocating to print an image; the ink is supplied to the recording head and at least comprises black ink, cyan ink, magenta ink and yellow ink, and each color of ink is correspondingly matched with one nozzle row; a black nozzle row corresponding to black ink and a yellow nozzle row corresponding to yellow ink in the recording head are arranged at positions farthest from each other along the moving direction of the recording head; the inks in various colors contain dyes as color materials, and the static surface tension of the yellow ink is the lowest than that of the inks in other colors. According to the thermal bubble type ink-jet printer in the embodiment, even if a heat dissipation plate is not used, heat dissipation of the recording head can be effectively achieved, heat accumulation can be avoided, printed images can be prevented from being disordered, the speed that yellow ink permeates into a printing medium can be higher, and meanwhile the color uniformity of the printed images is guaranteed.

The utility model relates to an anti-deviation strip steel unwinding device, and belongs to the technical field of strip steel machining. The flattening device mainly comprises a rack, a rotating shaft, a driving mechanism, an abutting mechanism, a supporting frame, a support, a flattening mechanism and a limiting mechanism. A strip steel coil is installed on the rotating shaft through the abutting mechanism, an inner ejector block abuts against a winding drum of the strip steel coil, strip steel is limited through a baffle and a limiting rod, shaking of the strip steel in the unwinding process is reduced, and therefore the deviation possibility of the strip steel coil is reduced, the driving mechanism drives the rotating shaft to rotate, then the strip steel is driven to be unwound, and the strip steel penetrates through the flattening mechanism and the limiting mechanism. The radial deviation range and the axial deviation range of the strip steel are limited, so that the strip steel is gradually unwound, shaking of the strip steel in the unwinding process can be effectively avoided, then stable conveying of the strip steel is ensured, and deviation and disorder of strip steel unwinding are avoided.

The invention belongs to the technical field of marine towing cables, and provides a marine towing engine automatic cable combing device which comprises a support, the support comprises a bottom plate, and side plates are symmetrically arranged at the top of the bottom plate; the winding assembly is arranged between the two side plates, the winding assembly comprises two outer gear rings rotationally connected to the side plates, a cable roller is rotationally connected between the two outer gear rings, a connecting shaft is fixedly connected to the end of the cable roller, and a guide component is arranged between the two side plates; the cable shifting assembly is arranged on the bottom plate; a cable is guided through reciprocating movement of the cable shifting rod, so that the cable is wound, the cable is kept uniform and compact in the winding process, disordered winding of the cable is avoided, it is guaranteed that the cable is smoothly unwound next time, the cable is subjected to uniform pulling force during winding, the cable can be prevented from being subjected to too large pressure or pulling force, and the service life of the cable is prolonged. Therefore, the service life of the mooring rope is prolonged, mutual friction and extrusion of the mooring rope in the storage process can be reduced through uniform winding, and the integrity of the mooring rope is further protected.

The invention discloses a plant lactobacillus plantarum, which is a plant lactobacillus plantarum TSXueLian-3, is preserved in the Guangdong Microbial Culture Collection Center (GDMCC) on September 20, 2024, and has the preservation number of GDMCC No.65165. The plant lactobacillus plantarum is a plant lactobacillus plantarum strain, and the plant lactobacillus plantarum is a plant lactobacillus plantarum strain, and is preserved in the Guangdong Microbial Culture Collection Center (GDMCC) on September 20, 2024, and the preservation number is GDMCC No.65165. The invention further discloses a preparation method of the plant lactobacillus plantarum strain. The invention also provides an application of the plant lactobacillus and a fermented product prepared from the plant lactobacillus and used for improving constipation. The plant lactobacillus provided by the invention not only can promote intestinal tract movement, but also can reduce the quantity of probiotics adhered to excrement and avoid the loss of viable bacteria.

The invention relates to the technical field of powder metallurgy, and discloses a rapid cooling method and device for preparing metal and alloy powder through gas atomization, and the method comprises the following steps: S1, smelting a metal or alloy melt in a smelting chamber until the metal or alloy melt is molten into metal or alloy liquid meeting process requirements, the liquid enters the atomization device through the temperature-resistant metal and alloy liquid corrosion-resistant liquid guide pipe, and the metal or alloy liquid flowing through the atomization device enters the atomization device under the action of sonic inert gas; the device comprises a smelting chamber, an atomizing chamber and an atomizing device, the smelting chamber is arranged above the atomizing device and connected with the atomizing device through a flow guide pipe, the atomizing device is installed above the atomizing chamber, and the atomizing device is communicated with the atomizing chamber. The powder discharging pipe communicates with the atomizing chamber, smooth conveying of metal and alloy powder is achieved, the air powder mixing channel is connected with the extending channel and the expanding channel, the gradually-shrinking and gradually-expanding airflow channel design is formed, and the mixing and cooling efficiency of airflow and powder can be improved.

The invention provides a light source adjusting device of a laser 3D printer. The light source adjusting device comprises a printer body, a polarizer, a laser, a moving table, a light beam shielding part and a protective channel. The polarizer is arranged in the printer body, the moving table is arranged on the side face of the printer body, the laser device is arranged on the moving table, the light beam blocking and shielding part is arranged on the moving table and is close to the laser device, and the protective channel is arranged on the light beam blocking and shielding part. According to the light source adjusting device of the laser 3D printer, the adjusting mode of the laser beam is effectively increased and improved, the propagation process of the laser beam is protected, and high-quality printing of a model is ensured while the printing efficiency is greatly improved.

The invention discloses an evaporative crystallization device based on high-concentration wastewater and a zero discharge process, and relates to the technical field of wastewater treatment.The evaporative crystallization device based on the high-concentration wastewater comprises an evaporation tank, and a drainage device is arranged in the evaporation tank; the flow guide device comprises a heat conduction inner barrel fixed in the evaporation tank, an inner ring channel formed in the center of the heat conduction inner barrel, a flow guide pipe fixed in the inner ring channel and a plurality of groups of outer ring channels formed in the heat conduction inner barrel, and the plurality of groups of outer ring channels are sequentially formed from inside to outside by taking the inner ring channel as the center; first water outlets which are arranged up and down are formed between the inner ring channel and the adjacent outer ring channel, and second water outlets are formed between the other outer ring channels. By arranging the drainage device, when entering the evaporation tank, wastewater can sequentially pass through the multiple groups of outer ring channels along the inner ring channel in an S-shaped trend so as to diffuse and flow towards the periphery, so that disorder and stagnation of flow in a traditional system are avoided, and continuous flowability of the wastewater is ensured.

The invention provides a scheduling method and device for integrating multiple floors and multiple devices, and the method comprises the following steps: receiving overall task information, and decomposing the overall task information into a plurality of subtasks according to a starting point location and an ending point location; each subtask comprises a sequence number, an equipment type, a completion state and an influence factor; the influence factor is used for determining whether the subtask of the next sequence number can be executed or not; the equipment comprises AGV equipment and connecting equipment for connecting two floors; receiving state information fed back by the equipment, analyzing a dynamic traffic management point between the subtasks according to the state information, obtaining an advancing / stopping state and an advanceable point location, and issuing the advancing / stopping state and the advanceable point location to each piece of target equipment; the state information comprises a device type, a device IP, a running state and a task completion state. According to the invention, collaborative operation requirements among multiple floors and multiple devices can be fully considered, and the overall operation efficiency and flexibility of the device scheduling system are improved.

The invention provides a mass data access control method for self-adaptive data access rate control, which comprises the following steps of: setting system parameters such as an initial data access rate, a performance threshold value and a monitoring period, and acquiring key indexes in real time in an access channel; processing the collected key indexes in real time, and storing the key indexes in a distributed database; calculating performance indexes such as processing capability and resource utilization rate of the current system based on the key indexes; the real-time performance indexes are analyzed through distributed calculation, and the current state of the system is evaluated; the real-time performance index analysis result is compared with a preset performance threshold value, and whether the data access rate needs to be adjusted or not is judged; and dynamically adjusting the data access rate to be matched with the real-time performance index according to a comparison result. According to the method, the limitation of a traditional data access mode is effectively solved, the access rate is dynamically adjusted so as to adapt to continuously changing network environments and service requirements, and the flexibility and adaptability of the system are remarkably improved.

The invention provides a hybrid welding device and a control method of the hybrid welding device. The hybrid welding device comprises an electrode welding assembly and a laser welding assembly, the laser welding assembly and the electrode welding assembly are correspondingly arranged, and the laser welding assembly and the electrode welding assembly are coupled; wherein the electrode welding assembly and the laser welding assembly are arranged corresponding to the same welding part, and the electrode welding assembly and the laser welding assembly communicate through a synchronizing signal, so that one of the electrode welding assembly and the laser welding assembly outputs normal energy, and the other one outputs low energy or does not work at the same time. By means of the mode, it is avoided that the welding fluid splashes to the laser welding assembly, so that the output efficiency of laser is affected, it is avoided that during laser output, electric arc fluctuation of electrode welding and protective gas disorder are caused, and the welding stability of the laser welding assembly and the electrode welding assembly is guaranteed.

The invention relates to the technical field of electrode needle production, and discloses a rotary cup type electrostatic spraying electrode needle production device which comprises a hot melting base and a pressing block mechanism, and the hot melting base is provided with a high-frequency heating coil used for melting brazing filler metal and a containing disc used for containing a copper base; the pressing block mechanism is hung above the placing disc through a supporting frame, the pressing block mechanism comprises a pressing block used for limiting the position of the spray point and a lifting servo mechanism, the pressing block is connected with the output end of the lifting servo mechanism, the lifting servo mechanism drives the pressing block to be close to or away from the placing disc in the vertical direction, and the high-frequency heating coil is located between the pressing block and the placing disc; the technical problems that in the prior art, when an electrode needle is manufactured, operation is complex, and production energy consumption is large are solved.

The utility model discloses a far and near light module with a cut-off line distance adjustable function, which comprises a lens, a decorative ring, small iron, a cut-off line baffle, a condenser, a PCB (printed circuit board), a radiator and a support, the lens is used for collimating and imaging light in the module, so that a car lamp further illuminates, the light irradiates farther and brighter, the decorative ring is used for a retainer of a module assembly, and the cut-off line baffle is used for retaining the light in the module assembly. The small iron is used for preventing sunlight from focusing and burning parts in the module, the cut-off line baffle is used for improving the focal length of the passing light, the gradient and chromaticity of the passing light are guaranteed, and the passing light and the passing light are lightened and connected at the same time. The condenser is used for guiding the passing light and the passing light, the PCB is used for controlling starting and stopping of light, and the radiator is used for dissipating heat of the module. The support is used for fixedly installing the decoration ring and the radiator.

The invention discloses an ultrathin electronic glass slag box pressure control device and a using method, the ultrathin electronic glass slag box pressure control device comprises a nitrogen pipeline connected with a slag box, the output end of the nitrogen pipeline is sequentially connected with a U-shaped heating pipe and an output pipe, the output pipe is connected with a branch pipe in parallel, and the branch pipe extends to a lower cavity of the slag box through a cylindrical exhaust head; the nitrogen pipeline is provided with an electric butterfly valve, the input end of the heating pipe is provided with a flowmeter, the lower cavity of the slag box is provided with a pressure tapping pipe and a pressure gauge, and the output pipe and the branch pipe are wrapped by composite insulating layers. Through cooperative control of the electric butterfly valve, the flowmeter and the pressure gauge, the micro-positive pressure of the lower cavity of the slag box is maintained so as to block external invasion, nitrogen is heated and heat preservation is performed by means of tin bath waste heat, the process consistency is guaranteed, the quality of the lower surface of glass is remarkably improved, the requirements of TP grade judgment and the like are met, and the device is suitable for ultrathin electronic glass production scenes.

The invention discloses a winding device for copper wire processing, and relates to the technical field of copper wire processing, the winding device comprises a workbench, a driving element is arranged above the right side of the workbench, a wire feeding wheel is arranged on the left side of the driving element, fixing frames are arranged at the left end and the right end of the workbench, and alarm mechanisms are fixedly mounted on the right sides of the fixing frames; an automatic locking mechanism is fixedly installed in the alarm mechanism, a dismounting mechanism is arranged on the right side of the bottom end of the fixing frame, after the required height of the copper wire is measured through a caliper, a second rotating shaft penetrating through the upper end of an arc-shaped clamping plate is inserted into a corresponding through hole, and when the copper wire reaches the designated height, an alarm is triggered to give an alarm; and when the winding thickness of the copper wire reaches a required value in advance, the worker is warned, meanwhile, a pulley fixedly installed below an arc-shaped clamping plate plays a role in sequentially winding, and therefore the effect that the copper wire is not wound in the winding process is achieved.

This invention discloses a multi-robot task scheduling method and apparatus for wind turbine blades based on a multi-level Stackelberg game model, relating to the field of wind turbine blade manufacturing technology. The method includes: constructing a Stackelberg game framework, assigning roles according to process dominance, with the edge-cutting robot as the first-level leader, the grinding robot as the second-level leader, and the roller-coating robot as the follower; the edge-cutting robot formulates an initial scheduling strategy based on an auction mechanism, and the grinding robot optimizes the strategy through a same-level auction, the combination of these two strategies forming the first-level game; the roller-coating robot determines the optimal solution based on the combined strategy of the first two, forming a second-level game with the grinding robot; a multi-level Stackelberg game model is established based on work efficiency, energy consumption, load balance, and conflict penalty terms; the game equilibrium is solved using backward induction, finally obtaining the optimal scheduling scheme for each robot. Using this invention can improve the overall work efficiency of wind turbine blade post-processing.

The utility model belongs to the technical field of heating furnaces for preparing and storing hydrogen materials, and particularly discloses a cooling and stirring structure of a heating furnace for preparing and storing hydrogen materials, which comprises a cooling fan arranged outside a heating furnace body and a cooling component positioned in the heating furnace body, and the cooling fan is communicated with the cooling component through an air inlet pipe; a supporting assembly is arranged on the outer side of the air inlet pipe and connected with the cooling assembly, an air cylinder is arranged at the top of the heating furnace body, and the output end of the air cylinder is connected with the supporting assembly and used for driving the cooling assembly to move vertically. The cooling assembly is arranged in the heating furnace body, the cooling assembly is communicated with the external cooling fan to further cool a melt-spinning sheet falling off from the cooling roller in an accelerated mode, the air cylinder is connected with the cooling assembly, ascending and descending of the cooling assembly are achieved, and the melt-spinning sheet is crushed and stirred. The specific surface area of the material is greatly increased, the surface sites of the hydrogen storage material for adsorbing hydrogen are increased, and the hydrogen storage efficiency is effectively improved.

The utility model discloses an automatic take-up machine which comprises a base plate and an installation mechanism, the installation mechanism comprises a fixed installation mechanism and a movable installation mechanism, the fixed installation mechanism is arranged at one end of the base plate, a fixed plate is fixedly arranged at the other end of the base plate, an electric telescopic rod is arranged on the fixed plate, and the movable installation mechanism is arranged on the base plate. A guide sliding groove is formed in the upper surface of the end, close to the fixed plate, of the bottom plate, the movable mounting mechanism is arranged in the guide sliding groove in a clamped and sliding mode and connected with the free end of the electric telescopic rod, the fixed mounting mechanism and the movable mounting mechanism are oppositely arranged, and a winding drum is detachably mounted between the fixed mounting mechanism and the movable mounting mechanism; and a wiring mechanism is arranged on the bottom plate, and the wiring mechanism and the winding drum are correspondingly arranged. The utility model belongs to the technical field of take-up machines, and particularly provides an automatic take-up machine which is convenient to replace a take-up drum and can ensure that wires and cables are uniformly and regularly wound on the take-up drum.

This utility model relates to the field of valve technology, and in particular to a two-way valve and an explosion-proof valve. The two-way valve provided by this utility model includes a housing and a fixed base forming an air exchange channel, and a first movable member and a second movable member. At least a portion of the first movable member passes through the second movable member and extends into the fixed base. The first movable member is axially movable relative to the second movable member and the fixed base. When the first movable member moves in a first direction, the air outlet channel communicates with a first gap. When the first movable member pushes the second movable member to move in a second direction, the air inlet channel communicates with the first gap. The movement of the first movable member within the air exchange channel forms separate air outlet and air inlet channels, precisely controlling the airflow direction, avoiding turbulence and backflow, improving exhaust efficiency, and adapting to airflow pressure requirements in different directions.

The invention discloses fine processing and sorting equipment for organic rice, and relates to the technical field of rice processing, the fine processing and sorting equipment comprises a support, a winnowing mechanism for removing wizened rice is arranged at the top of the support, and a control mechanism for limiting the falling amount of the rice is arranged above the winnowing mechanism; a winnowing mechanism is arranged on the top of the support, a screening mechanism for removing small-particle impurities is arranged below the winnowing mechanism, the winnowing mechanism comprises an outer shell fixedly connected to the top of the support, and an air inlet is formed in one end of the outer shell. According to the invention, air flow is introduced into the air outlet, so that wizened particles in the rice are blown to the air outlet by the air flow, empty shells, broken rice, grass clippings and other light impurities in the rice are removed, meanwhile, the rice can be treated mildly by using wind power sorting, the broken rice rate increase caused by rough operation is reduced, the sorting efficiency is improved, meanwhile, the loss of the rice can be reduced, and the production cost is reduced. The overall quality of the rice is improved.

The invention discloses a priority data processing method and system of a smart building automatic control system, and relates to the technical field of smart buildings, and the method comprises the steps: collecting first-level sub-data in a building, building a data set, determining a data change trend, and building a threshold range according to the first-level sub-data change trend; acquiring the collected first-level sub-data, summarizing the first-level sub-data to form second-level sub-data, and determining a change trend; summarizing the second-level sub-data to form third-level sub-data, comparing the third-level sub-data with a threshold value, and giving an alarm when the third-level sub- After the indoor environment coefficient exceeds the threshold value, whether the smoke coefficient and the temperature and humidity coefficient exceed the threshold value or not is judged, the second-level data and the corresponding first-level data are further judged, and the priority of first-level sub-data processing is determined; according to the method, the difference between each value and the corresponding threshold value is judged, the difference is sorted, and the processing priority is determined, so that disorder and congestion conditions can be avoided when the data is abnormal, and the processing efficiency is improved.

The utility model discloses a coil stabilizing structure for a paint stripping mechanism of a winding machine, which relates to the field of coil installation and comprises a fixing structure, a motor arranged above a cushion block, a double-threaded rod arranged at the output end of the motor, a dovetail block arranged on the double-threaded rod, a baffle arranged above the dovetail block, a fixing block arranged on one side of the baffle, and a fixing block arranged on the other side of the baffle. A first sliding block is arranged below the fixing block, a first limiting column is arranged on the side, away from the first fixing ring, of the first fixing ring, a second sliding groove is formed in the inner wall of the through hole, a second sliding block is arranged in the second sliding groove, a second limiting column is arranged on one side of the second sliding block, and a second fixing ring is arranged on the side, away from the first limiting column, of the second limiting column. A fixing bolt is arranged above the second fixing ring, the motor drives the double-threaded rod to rotate, the double-threaded rod drives the dovetail blocks on the two sides to move relative to the first sliding block, the dovetail blocks and the first sliding block drive the baffle and the fixing block to move relative to each other, and then the coil is fixed.

The utility model discloses an armoring machine for cable production, which comprises a base and a steel wire cylinder, the surface of the base is fixedly connected with an equipment box, the surface of the equipment box is connected with a fixed cylinder, and the surface of the equipment box is provided with a winding mechanism used for winding a steel wire on the surface of a cable. The surface of the steel wire cylinder is provided with a dismounting mechanism used for dismounting the steel wire cylinder. The utility model relates to the technical field of cable production. According to the armoring machine for cable production, a winding motor is started to drive a rotating cylinder to rotate, the rotating cylinder drives a rotating plate to rotate, the rotating plate drives a rotation shaft to rotate with the rotating cylinder as the circle center, meanwhile, the rotating cylinder drives an epicyclic gear to rotate, the epicyclic gear drives the rotation shaft to rotate, the rotation shaft drives a steel wire cylinder to rotate, and the steel wire cylinder rotates while rotating around a cable; therefore, the steel wire cylinder and the steel wire on the surface can move synchronously, the phenomenon that the steel wire is disordered when the armoring machine is used is avoided, and the working efficiency is improved.

The utility model belongs to the technical field of cooling unit, concretely relates to a double -sided air -intaking circulating cooling unit for nuclear power station, including unit base and unit box, the unit box is barrel -shaped structure, and the opening side of unit box is connected with unit base buckle, and unit base is provided with the through -hole and forms the air outlet, the opposite sides wall of unit box is provided with the air inlet symmetrically, and the air inlet is covered with air -intaking treatment subassembly, the utility model discloses the design of unit box double -sided air -intaking makes filter, cooler two -sided air -intaking, can reduce the cross -sectional dimension of circulating cooling unit under the condition that total air -intaking area is invariable, thereby making circulating cooling unit can be arranged in the annular corridor of inside safety shell.

The utility model discloses a raw material grinding machine air supplement structure, including raw material grinding machine body, the raw material grinding machine body one side is provided with the vertical settling tube, the lateral wall on the settling tube is provided with the air outlet, the air outlet is connected with the air supplement inlet of raw material grinding machine body through the air supplement pipe intercommunication, the top of settling tube is provided with the air inlet, the air inlet is connected with the elbow joint one end, the elbow joint other end is connected with the fan through the air supply pipe. The utility model discloses a fan with hot air in rotary kiln through air supply pipe, elbow joint, settling tube, air supplement pipe and is transported to raw material grinding machine body to dry raw material, and the air pressure in raw material grinding machine can be supplemented simultaneously, prevents the air flow field distribution in the raw material grinding machine of raw material grinding machine air supply insufficient and makes the airflow field distribution in the raw material grinding machine of raw material grinding machine air supply insufficient and makes the airflow field distribution in the raw material grinding machine of raw material grinding machine air supply insufficient and makes the airflow field distribution in the raw material grinding machine of raw material grinding machine air supply insufficient and makes the airflow field distribution in the raw material grinding machine of raw material grinding machine air supply insufficient and makes the airflow field distribution in the raw material grinding machine of raw material grinding machine air supply insufficient and makes the airflow field distribution in the raw material grinding machine of raw material grinding machine air supply insufficient and makes the airflow field distribution in the raw material grinding machine.

The invention discloses a mixing and guiding device of a variable-diameter section flue and a method thereof. The mixing and guiding device comprises a flue unit and a guiding unit connected with the flue unit. The variable-diameter section flue has the beneficial effects that by arranging the partition plates between the partitions, airflow can stably flow according to a preset streamline when entering all the partitions, the length and the angle of the partition plates between the partitions are accurately adjusted according to the geometrical shape of the flue, and it is ensured that the airflow is evenly distributed in the whole variable-diameter section flue; the uniformity of a velocity field is greatly improved, the local airflow turbulence phenomenon caused by the non-uniform velocity field is avoided, the airflow mixing effect is further enhanced through the arrangement of the mixer, and the concentration field is also effectively controlled through the simultaneous cooperation of the partition plates in the partitions; therefore, pollutants in the flue gas can be uniformly treated in the denitration process, and the overall efficiency of a denitration system is improved.

The present specification provides a rotorcraft capable of suppressing a temperature rise of a fuel cell more effectively than conventionally using an air flow of a rotor. A rotorcraft disclosed in the present specification is provided with: a rotor for generating lift force; a hydrogen source; and a flow path pipe for conveying hydrogen from the hydrogen source to the fuel cell stack. And the flow path pipe passes through the lower part of the rotor. A rotorcraft disclosed in this specification utilizes an airflow generated by a rotor to cool hydrogen prior to entering a fuel cell stack. A rotorcraft disclosed in the present specification can suppress a temperature increase in a fuel cell stack by supplying cooled hydrogen to the fuel cell stack.

The utility model provides a kind of rear spoiler that inhibits the turbulence of airflow around vehicle and reduces the possibility of falling during angle adjustment of the wing part of rear spoiler.The wing part (14) of rear spoiler (12) is supported by supporting part (16) via fixed position support structure (18) and adjustment support structure (20) at its both ends.The fixed position support structure and adjustment support structure are configured inside the vehicle width direction of supporting part.The fixed position support structure includes bonding flange (22) arranged on the wing part, and the adjustment support structure includes support bar (28) as the part of bonding flange extending rearward and support bracket (30) fixed on the inner side of the vehicle width direction of the side of supporting part.Angular adjustment long hole (32) and brace receiving opening (50) receiving support bar are formed on the support bracket.The falling of wing part is prevented by the support bar hooked on the lower edge of brace receiving opening.

The present application relates to the technical field of powder metallurgy, and discloses a method and device for rapid cooling of metal and alloy powder prepared by gas atomization, the method comprising the following steps: S1, smelting a metal or alloy melt in a smelting chamber, to be melted into a metal or alloy liquid that meets the process requirements, entering an atomizing device through a heat-resistant and metal and alloy liquid corrosion-resistant liquid guide tube, and the metal or alloy liquid flowing through the atomizing device is under the action of a sonic inert gas; the device comprises a smelting chamber, an atomizing chamber and an atomizing device, the smelting chamber is arranged above the atomizing device and connected by a guide tube, the atomizing device is installed above the atomizing chamber, and the atomizing device is connected to the atomizing chamber. The present invention is connected to the atomizing chamber through a lower powder pipe to achieve smooth transportation of metal and alloy powders, and the wind-powder mixing channel connects the extension channel and the expansion channel to form a gradually contracting and gradually expanding airflow channel design, which helps to enhance the mixing and cooling efficiency of airflow and powder.

A cathode material, its preparation method, a cathode sheet, and a secondary battery are disclosed. The cathode material includes a core and a buffer layer. The core contains a first lithium manganese iron phosphate doped with a metal element. The buffer layer covers the outer surface of the core and contains a second lithium manganese iron phosphate. Along the thickness direction of the buffer layer, the iron-manganese ratio near the core is smaller than that far from the core. This cathode material can solve the problem that existing lithium manganese iron phosphate exhibits a dual-voltage plateau characteristic during charge and discharge, affecting the accuracy of charge state estimation.