466results about How to "Fast loading" patented technology

The invention relates to the technical field of data storage management, in particular to a data storage method based on a large model. The method comprises the following steps: performing input class cluster fragmentation optimization on a target pre-training large model to obtain storage modulus fragmentation data; constructing an intelligent fragmentation storage strategy by using the storage modulus fragmentation data; obtaining target model training data; performing intelligent fragmentation storage on the target model training data by using an intelligent fragmentation storage strategy, and performing redundancy compression optimization to obtain dynamic redundancy storage index data; and training data storage space optimization is carried out according to the dynamic redundancy storage index data, and an optimized data storage strategy is obtained. According to the method, intelligent fragmentation storage and refined data redundancy compression are performed on the data, so that efficient and stable model training data access is realized, the problem of low data storage and access efficiency in a large model training process is solved, and the model training efficiency and reasoning real-time performance are remarkably improved.

The invention relates to the technical field of data transmission and updating, in particular to a data transmission and updating system and method of a cloud mobile phone. According to the technical scheme, the system comprises an intelligent network monitoring module, a dynamic bandwidth allocation module, a server load balancing module, an intelligent data synchronization module and a cache management module, and the intelligent network monitoring module monitors network conditions, including network bandwidth, network congestion degree and network stability, between a user terminal and a cloud server in real time. Through the synergistic effect of the intelligent network monitoring module, the dynamic bandwidth allocation module, the server load balancing module, the intelligent data synchronization module, the cache management module and the like, the network condition is accurately monitored, the bandwidth is reasonably allocated, the server load is optimized, the data synchronization and completeness are ensured, and the cache efficiency is improved; stable and reliable network connection, preferential key data transmission and rapid data synchronization and loading are brought to users, and the use experience of the cloud mobile phone and the overall performance of the system are greatly improved.

The invention relates to the technical field of interaction systems, in particular to an intelligent control-based nursing board interaction system, which comprises a nursing board, and is characterized in that the nursing board internally comprises a voice recognition and control module integration, a board data interaction and display module, a board function page control module, an intelligent equipment control module and a feedback and interaction module; the voice recognition and control module integration, the billboard data interaction and display module, the billboard function page control module, the intelligent equipment control module and the feedback and interaction module are electrically connected. According to the method, a visual nursing billboard large screen is provided, interaction with the visual nursing billboard large screen is carried out through an API interface, instruction analysis and execution are supported, meanwhile, real-time voice and visual feedback and a multi-mode interaction mode are provided, and the user experience is remarkably improved.

The invention provides a UE5-based automatic construction and release method, and relates to the technical field of software development, the UE5-based automatic construction and release method comprises a construction module and a release module, and the construction module comprises the basic steps of construction triggering, pre-construction task execution, client and server packaging, log recording and automatic alarm. The release module comprises the basic steps of differential packet generation, version detection and automatic release, the intelligent prediction trigger carries out deep learning analysis on project development historical data, the peak period of code submission and the code conflict risk can be accurately predicted, construction is automatically triggered in the low-risk and resource idle period, and the construction efficiency is improved. The problem of low resource utilization efficiency caused by lack of multi-dimensional comprehensive judgment in a traditional construction triggering mode is effectively avoided.

The invention discloses a rapid tool changing device and a tool changing method of a metal cutting machine tool, and relates to the field of machine tools, the rapid tool changing device comprises a tool shaft seat, a tool body and a tool magazine, the tool shaft seat is provided with a U-shaped shaft cavity penetrating through the bottom surface, the top of the tool body is provided with a square tool handle, and the square tool handle is clamped into the shaft cavity in a matched mode to enable a tool to be axially aligned with the tool shaft seat; positioning grooves are formed in the two sides of the cubic cutter handle, positioning pieces are symmetrically arranged on the two sides of the shaft cavity, the positioning pieces are radially and elastically clamped into the positioning grooves through springs to fix the cubic cutter handle, and an extrusion piece axially and elastically slides in the cutter shaft seat and abuts against the positioning pieces to be clamped with the positioning grooves; the tool body and the tool shaft seat are combined in a lateral insertion mode, the tool body is fixed through elastic clamping connection of the positioning piece and the positioning groove and expansion limiting of the extrusion piece on the positioning piece, the tool shaft seat is directly moved to penetrate through the magazine opening in a reciprocating mode when the tool is replaced, the tool body is rapidly placed and taken down, and the tool replacing speed is high.

The utility model discloses a double-station automatic press-fitting machine, which aims to solve the technical problems of low press-fitting efficiency and large occupied area of the press-fitting machine in the prior art, comprises a rack, a press-fitting device and a PIN feeding mechanism, and is characterized in that the PIN feeding mechanism is positioned above the rack, the press-fitting device is vertically suspended above the PIN feeding mechanism, and the PIN feeding mechanism is positioned above the rack. A press-fitting head is arranged below the press-fitting device, a movable press-fitting block, a left feeding jig and a right feeding jig are arranged on the PIN feeding mechanism, the movable press-fitting block can move within a limited distance of one degree of freedom, and the movable press-fitting block comprises a press-fitting station A and a press-fitting station B. Two sets of press-fitting stations on the PIN feeding mechanism are switched back and forth, so that two operation states of the machine are realized, quicker production of materials is realized, the production period is shortened, meanwhile, the number of press-fitting machines is reduced, and the investment funds of enterprises and the occupied area of plants are reduced.

The invention discloses a design and preparation method of a cell membrane vesicle preparation loaded with mitochondria. The design method comprises the following steps: loading the mitochondria into an artificially constructed cell membrane bionic vesicle, and constructing a nano-scale vesicle preparation loaded with the mitochondria inside and a cell membrane outside; the preparation method comprises the following steps: preparing cells into a cell suspension; repeatedly extruding the cell suspension through an extrusion device provided with a filter membrane with a specific aperture; and carrying out differential centrifugation on the extruded liquid to prepare the cell membrane vesicle preparation loaded with mitochondria. The invention also discloses the vesicle preparation obtained by the method and application of the vesicle preparation in preparation of drugs for treating mitochondrial damage related diseases. According to the method, rapid and efficient loading of mitochondria in cells can be realized, and the problems of low yield of mitochondria vesicles from natural sources, limited loading efficiency and the like are solved. The prepared vesicle preparation can effectively protect the physiological function of mitochondria, delay rapid inactivation of mitochondria in the using process and achieve efficient mitochondrial transplantation of damaged cells.

The invention relates to the technical field of conveyors, and discloses a movable grain conveyor which comprises a movable base, a rotating seat, a rotation driving mechanism, an inclination adjusting mechanism, a feeding mechanism and a feeding mechanism, the rotating seat is rotatably installed on the base, the driving end of the rotation driving mechanism is connected with the rotating end of the rotating seat, and the inclination adjusting mechanism is installed on the rotating seat. And the driving mechanism is used for driving the rotating seat to circularly rotate positively and negatively relative to the base. When the conveyor is used for loading grains, the grains are discharged by driving the discharging barrel to linearly reciprocate at a low speed above the compartment, so that the grains can be uniformly stacked layer by layer, each layer can be kept in a relatively flat state, and the grains can be conveyed to the compartment by utilizing a self-movement mode of the conveying mechanism. The synchronous and uniform spreading operation in the feeding process is realized by the aid of the feeding device, the spreading difficulty is greatly reduced, the feeding can be continuously performed, the initial feeding speed of the conveyor is maintained, and the grain loading operation is more convenient.

The utility model discloses high-speed ceramic chip feeding equipment which comprises a ceramic chip feeding mechanism, an angle recognition mechanism and a sorting and positioning mechanism. The ceramic chip feeding mechanism comprises a ceramic chip feeding vibration disc, a feeding track and a linear vibrator; the angle identification mechanism is used for carrying out positioning identification and angle signal output on the ceramic workpieces on the feeding track; the sorting and positioning mechanism comprises a rotary arm assembly driven by a servo mechanism and a rotary suction assembly connected with the rotary arm assembly; the servo mechanism can receive angle signals output by the angle recognition mechanism and drive the rotary arm assembly and the rotary material suction assembly to work. According to the utility model, through the cooperative use of the automatic ceramic chip feeding mechanism, the sorting and positioning mechanism and the angle identification mechanism, quick and accurate ceramic chip workpiece feeding and positioning are realized, so that the overall efficiency of a production line is improved, and meanwhile, errors caused by manual operation and human intervention are reduced; and the angle identification mechanism and the sorting positioning mechanism are matched to remarkably improve the precision and the stability.

The utility model discloses extrusion production equipment for glass cement processing, which comprises an n-shaped frame, an air cylinder fixedly mounted at the top end, a pressing plate clamped at the output end of the air cylinder, a cement outlet pipe penetrating through the top end of the pressing plate, vertical plates arranged on two sides in the n-shaped frame, and arc-shaped clamping plates fixedly connected to the top ends and the bottom ends of the vertical plates. Rubber sheets are fixedly connected to the side walls, away from the vertical plate, of the arc-shaped clamping plates, and cross rods are fixedly connected to the top and the bottom of one side wall of the vertical plate; the bottom end of the n-shaped frame is fixedly connected with a base, a sliding plate is arranged in the base, and a limiting groove used for containing the stirring barrel is formed in the top end of the sliding plate. And through the sliding plate, the limiting groove, the sliding groove, the clamping plate and the like, the limiting structure can be tightly attached to the stirring barrel placed in the extrusion equipment, so that the stirring barrel is clamped and fixed, and the stability of the stirring barrel is improved when the stirring barrel is extruded by the pressing plate.

The present invention belongs to the field of bearing technology, and proposes a tool and method for limiting the shape and maintaining the roundness of the induction quenching of a single-row conical main shaft bearing ring of a wind power plant. The tool body of the tool body is annular; the lower end of the inner wall of the tool body has an annular step; a radial heat-absorbing support plate is also arranged in the tool body, and the radial heat-absorbing support plate is a multi-section arc plate; the arc length of each section of the radial heat-absorbing support plate is 4 to 6 times the length of the heating affected zone; the multi-section radial heat-absorbing support plate is in surface contact with the workpiece to be processed after pre-tightening; the radial heat-absorbing support plate is pressed in the tool body by a plurality of pre-tightening adjustment pins distributed along the circumference; a radial pre-tightening screw is arranged on the tool body corresponding to each pre-tightening adjustment pin; the circumference of the tool body has a plurality of cooling water holes for installing cooling water pipes. The present invention effectively solves the problems of elliptical deformation, end face warping and uneven shrinkage of a single section of the workpiece when the large-diameter thin-walled wind power main bearing ring is induction quenched without a soft belt.

The utility model relates to the technical field of communication vehicles, and discloses a novel satellite communication vehicle which comprises a vehicle body and further comprises a driving cabin and a rear cabin which are arranged in the vehicle body, and a partition convenient to disassemble is arranged between the driving cabin and the rear cabin. The car roof assembly is arranged at the top of the car body and used for supporting multi-person high-strength operation, the car roof assembly comprises an all-aluminum frame arranged at the top of the car body, an anti-skid aluminum plate is fixed to the top of the all-aluminum frame, a safety guardrail is fixed to the top of the anti-skid aluminum plate, an interior trimming panel is fixed to the bottom of the all-aluminum frame, and the interior trimming panel is fixed to the top of the car body. The problems that when roads are damaged, houses collapse and infrastructures are damaged and paralyzed at present, rescue personnel equipment is very difficult to enter a site, due to the fact that a site basic network is paralyzed and site information cannot be effectively transmitted back, multi-aspect overall coordination cannot be conducted, the function of carrying equipment is single, and the cost is low are solved. And the emergency industry requirements in the new era are difficult to meet.

The invention relates to the field of image processing, in particular to a rapid map merging method in BIM model lightweight, comprising the following steps: traversing all original maps in a BIM model, and obtaining parameter information of each map; mapping the position of each original map on the model to a UV space according to the parameter information; establishing a new map, and superposing and combining the original map into the new map according to the position information in the UV space; and updating the parameter information of the new chartlet into the model data structure to replace the parameter information of the original chartlet. According to the method, the original chartlets are combined into the new chartlet, so that the new chartlet is a whole and can be separated through coordinates and pixel positions, as all the original chartlets are in the new chartlet, the loading speed is higher than that of all the original chartlets during loading, and the loading speed is higher during storage and backup. And only one file needs to be processed, so that the overall efficiency is improved.

The invention discloses a page resource providing method and device for an application program, a page loading method and device for the application program, a storage medium and computer equipment, and the method comprises the steps: receiving a resource obtaining request from a target application program in a client, the resource acquisition request carries a target resource display position identifier corresponding to a target page requested to be loaded in the client; target resource information corresponding to the target resource display position identifier is inquired in a Redis cache, and resource display position information of all resource display positions corresponding to the target application program is stored in the Redis cache; any resource display position information comprises a resource display position identifier and resource information corresponding to the corresponding resource display position; and sending the target resource information to the client, so that the client loads the target page based on the target resource information. Compared with the prior art, the cache management based on Redis provides higher flexibility and efficiency, and the load of the server is reduced.

The invention is suitable for the technical field of data query, and provides a power marketing data query method and system based on a JointBERT model of a knowledge graph, and the method comprises the steps: obtaining field background knowledge related to the power industry, and constructing the knowledge graph; a JointBERT model is constructed and trained, and the model comprises an input layer used for processing input text data; the coding layer is used for carrying out fusion coding on rich general semantic knowledge in a corpus and domain knowledge in the knowledge graph; the decoding layer is used for generating field and intention corresponding to the input text and slot labels corresponding to words; compressing and optimizing the model by adopting an early leaving mechanism and a knowledge distillation method to obtain a target model; and the power demand problem of the user, which is received in real time, is used as the input parameter and is input into the target model for data query and analysis, so that the enterprise information query efficiency of related workers is improved.

The invention discloses a circuit board feeding device of a chip mounter, which comprises a suspension frame plate, a transmission structure arranged at the top of the suspension frame plate, a plurality of transfer structures arranged on the back surface of the suspension frame plate, and a plurality of feeding assemblies arranged at the bottom of the front surface of the suspension frame plate, the output end of the first hydraulic cylinder is connected with a tray, a plurality of supporting rods are arranged at the top of the tray at equal intervals, the top ends of the supporting rods are jointly connected with a base plate, the top of the base plate is connected with a guide column, a first motor is arranged at the bottom of the base plate, and the output end of the first motor is connected with the guide column. A plurality of sliding grooves are formed in the side wall of the direction adjusting guide column, and feeding structures are embedded in the sliding grooves. The feeding device can efficiently and quickly feed, is convenient to flexibly adjust the position, and is high in accuracy and high in practicability.

The utility model discloses a uniform mixing device for producing and processing a water repellent. The uniform mixing device for producing and processing the water repellent comprises a first bevel gear and a reaction kettle, the outer surface of the first bevel gear is meshed with a second bevel gear and a third bevel gear, the inner wall of the second bevel gear is fixedly connected with a rotating rod, the first bevel gear, the second bevel gear, the third bevel gear and other components are arranged, and the first bevel gear and the second bevel gear rotate through rotation of the first bevel gear. The bevel gear I is meshed with a bevel gear I and is meshed with a bevel gear II and a bevel gear III, so that the reverse rotation effect of the bevel gear II and the bevel gear III is achieved, the bevel gear II drives a rotating rod to rotate, the rotating rod drives a stirring part II to rotate through a fixing part, the bevel gear III drives a stirring part I to rotate through the rotating part, and the rotating direction of the stirring part II is opposite to that of the stirring part I; furthermore, the effect of improving the stirring efficiency through forward and reverse rotation between the stirring part II and the stirring part I is realized, the water repellent is ensured to be mixed more uniformly, and the production quality of the water repellent is improved.

The invention discloses pipeline joint multi-shaft automatic machining equipment, and relates to the technical field of pipeline joint machining, the pipeline joint multi-shaft automatic machining equipment comprises a connecting frame and a connecting plate, the top of the connecting frame is provided with a driving motor, the output end of the driving motor is provided with a lead screw, and the external thread of the lead screw is provided with a top frame. According to the multi-shaft automatic machining equipment for the pipeline joint, the rack can be synchronously driven to move through position adjustment of the top frame, so that the rack can be meshed with a side gear when moving, the side gear can rotate and follow a side screw connected with the side gear, and a threaded seat on the outer surface of the side screw can horizontally move on the outer surface of the side screw; and therefore, the vertical plate and the cleaning plate can be attached to the inner walls of the supporting base and the collecting frame for cleaning, the situation that small chippings generated during pipeline joint machining are attached to the inner walls of the supporting base or the collecting frame and are difficult to clean is avoided, and the cleanliness of a machining area is kept when the pipeline joint is machined.

The embodiment of the invention discloses a page loading method and device and a computer program product, and belongs to the field of application programs.The method comprises the steps that a native page of an application program is loaded, and a webpage view page of a webpage view assembly is loaded; displaying a native page and a webpage view page located on the upper layer of the native page to obtain a first page; wherein the webpage view page is a transparent page, and the page content of the native page is displayed through the webpage view page. According to the method, the page loading speed can be increased.

The invention discloses a warp knitting machine with a precise yarn supply device, which comprises a fixed base, and the top of the fixed base is fixedly connected with a transmission rod; the number of the feeding mechanisms is two, each feeding mechanism comprises a mounting part, a rotating part, an adjusting part and a storage rod, the mounting parts are arranged on the fixed base, the rotating parts and the adjusting parts are arranged on the mounting parts, and the storage rods are arranged on the adjusting parts; yarns can be uniformly stored and stored by rotating the yarn storage coil and adjusting the movement of the yarn storage coil at the same time, the rotating rod drives the mounting plate to rotate, the yarns are supplemented in time, the yarn coil is prevented from being detached and replaced, the working efficiency is improved, and by adjusting the angle of the adjusting plate, the storage rod is driven to rotate to a proper angle, so that the yarn storage efficiency is improved. The yarn rolls are arranged on the storage rod in a sleeving mode, the adjusting plate and the storage rod are pushed to move through the electric telescopic rod, the tension can be adjusted according to the actual situation, rapid feeding can be achieved, and the practicability of the feeding device is improved.

The invention relates to the field of data processing, in particular to a program management method and device, equipment and a medium, and the method comprises the steps: obtaining a program execution request of a target program; determining a target function corresponding to the program execution request according to the program execution request; determining a target function module compressed package corresponding to the target function from a plurality of function module compressed packages of the target program; wherein the function module compressed package corresponding to each function module of the target program is obtained by compression according to a compression ratio determined by the priority of the function module; and decompressing and loading the target function module compressed package so as to execute the target function. The functional modules are compressed and stored, and when the target function needs to be executed, only the compressed package of the target functional module is decompressed and loaded, so that the memory occupation is reduced, and the system performance is improved.

The utility model discloses a bending device feeding mechanism which comprises a mounting frame, a rotating shaft is rotationally connected to the position, close to the bottom end, in the mounting frame, a special-shaped wheel is fixedly connected to the outer surface of the rotating shaft, a material storage table is fixedly connected to the top end of the mounting frame, and a material pushing through hole is formed in the top end of the material storage table in a penetrating mode. An adjusting frame is fixedly connected to the bottom end of the material storage table and located at the position of the material pushing through hole, and a pushing block is arranged in the adjusting frame in a sliding mode. The speed reduction motor drives the rotating shaft to rotate, so that the special-shaped wheel rotates along with the rotating shaft, the idler wheel rolls along the surface of the special-shaped wheel under the pulling force effect of the reset spring and drives the connecting rod to swing, the push block slides in the adjusting frame under the driving of the connecting rod, and a bottom layer steel plate stacked on the material storage table is pushed out for feeding. The steel plate feeding device is simple in structure, feeding is convenient, and the working efficiency of the bending device is greatly improved.

The present invention relates to the technical field of insulating paint production, specifically to an integrated production device for polyurethane insulating paint, including a tank body, on which a discharge pipe, a heater, a plurality of storage tanks, a quantitative valve at the bottom of the storage tank, and a feeding pipe are arranged. The present invention can drive the conical disk to rotate synchronously through a connecting shaft, and the arc groove can be separated from the arc slide rail for a certain period of time, so that the bottom wall of the conical disk is intermittently separated from the side wall at the bottom of the second mixing chamber, so as to realize intermittent feeding of the grinding assembly, relieve the pressure on the top of the grinding assembly, and ensure the grinding effect while improving the integrated production efficiency of the insulating paint, and the continuous rotation of the connecting shaft can make the mixing assembly reciprocate up and down in the second mixing chamber, which can change the range of movement of the small blades and impellers on the mixing head, and can improve the mixing effect, and the small blades and impellers rotating at high speed can perform preliminary shearing on the raw materials in the second mixing chamber, and can reduce the wear of the grinding assembly.

The invention discloses a method for quickly browsing multi-source heterogeneous mass remote sensing information in real time. Belongs to the field of remote sensing information technology application and particularly relates to the technical field of remote sensing information real-time rapid browsing. The method comprises the following steps: processing a multi-source heterogeneous remote sensing image by adopting a multivariate heterogeneous remote sensing information standardized archiving processing method, and constructing a multi-dimensional cloud storage with a place-time as an index; for an image real-time browsing request, a self-adaptive heterogeneous image tile real-time rendering method is adopted to render tiles; a multi-dimensional multi-level cache method is adopted to provide data for each link returned by tile rendering; a multi-source heterogeneous remote sensing information browsing service is provided for a user through a self-adaptive heterogeneous image tile real-time rendering technology and a multi-dimensional multi-level caching technology; according to the use habit of a user, intelligent pre-loading and intelligent cache management of tiles are realized through an intelligent cache management and pre-loading method. The technical problems of high delay and long user waiting time of non-slicing release are solved.

The invention relates to the technical field of data processing, in particular to a map data fusion method, a vehicle, equipment and a program product. The method comprises the steps that lightweight map data and high-precision map data of a target area are acquired, and the number of road elements contained in the high-precision map data is larger than the number of road elements contained in the lightweight map data; extracting target high-precision road elements used for being fused to lightweight map data from the high-precision map data; carrying out adaptive processing on the target high-precision road element to obtain a target lightweight road element adapted to the lightweight map data; and fusing the target lightweight road element into the lightweight map data to obtain fused map data. According to the method, the lightweight map data and the high-precision map data are integrated, and the required target lightweight road elements are fused in the lightweight map data, so that the finally obtained fused map data can be rapidly loaded or updated, and the road elements in the map can be ensured to be more comprehensive.

The invention belongs to the technical field of seam welders, and discloses a seam welder for reinforcement cage integrated machining, which comprises a support assembly I and a hydraulic rod II, the support assembly I comprises a sliding rail, a sliding support and a rotating disc movably mounted in the sliding support, and the seam welder further comprises clamping assemblies arranged on the rotating disc in an annular array; a feeding mechanism; a notch is formed in the bottom of the sliding support. According to the scheme, the hydraulic shearing and lifting machine is operated to push the V-shaped frame and the hydraulic jacking assembly to move upwards and push the frame body, so that the sleeve block moves to the outer portion of the main frame from the outer portion of the clamping block, and at the moment, the sleeve block moves downwards under the elastic force of the spring combined limiting rod, slides to the outer portion of the clamping block and abuts against the first inclined faces on the two clamping blocks; at the moment, the two ends of the main reinforcement are clamped in the two sets of V-shaped grooves correspondingly, the hydraulic shearing and lifting machine is operated to drive the V-shaped frame and the hydraulic jacking assembly to move downwards to enable the top plate to relieve supporting of the frame body, and therefore rapid feeding and clamping of the main reinforcement are achieved.

The utility model relates to a magnet arrangement and combination feeding mechanism which comprises a supporting bottom plate. A magnet is arranged in the magnet bin; the magnet receiving assembly is used for receiving magnets in the magnet stock bin; the magnet pushing assembly is used for pushing the magnets in the magnet stock bin into the magnet receiving assembly; and the magnet secondary positioning assembly is used for receiving the magnet in the magnet receiving assembly, and the magnet secondary positioning assembly can perform secondary positioning on the magnet. The utility model relates to the technical field of automatic production and assembly, in particular to a magnet arrangement and combination feeding mechanism, which is characterized in that a magnet pushing component pushes a plurality of magnets in a magnet bin to move linearly at the same time, and a magnet receiving component pushes a plurality of magnets in a row to one side to enable the magnets to enter a magnet secondary positioning component; according to the mechanism, rapid combination and rapid feeding of the magnets in batches can be achieved, the efficiency is greatly improved, and the manual labor force is reduced.

The invention discloses a roll paper mounting bracket for a thermal printer, relates to the field of thermal roll paper, and solves the problem that the conventional thermal roll paper is relatively time-consuming to take and mount, the roll paper mounting bracket comprises a storage box and two support frames symmetrically and fixedly mounted on the outer side of the storage box, and a plurality of roll paper bodies which are vertically and symmetrically distributed are arranged on the inner side of the storage box; a protective top plate is arranged at the top of the storage box; a material taking box is arranged at the bottom of the storage box; the material taking mechanism is used for quickly taking the roll paper body, and the material taking mechanism is mounted on the inner side of the storage box; the roll paper bodies are vertically and sequentially loaded into the storage box through the material taking mechanism, the roll paper bodies fall on the material taking box in a pull-down mode, workers can take roll paper rapidly and conveniently, the supporting frame can be placed beside a label printing machine, the roll paper can be replaced in time conveniently, and therefore the effect of rapid material taking and replacing is achieved.

The utility model relates to the technical field of preservation devices, in particular to a preservation device for microorganism sampling. The technical problems that according to an existing preservation device, due to the fact that preservation conditions and types of different microorganisms are different, mutual isolation between samples stored in glass bottles is poor, cross contamination is likely to happen when bottle caps are opened and closed for storage, meanwhile, air and other pollutants are likely to enter the bottles when the bottle caps are frequently opened for storing the samples, and the storage time is shortened are solved. The sample is polluted, and the preservation quality of the sample is influenced. According to the technical scheme, the preservation device for microorganism sampling comprises a storage tank, a sealing assembly, a storage assembly and a control assembly; the sealing cover is combined with the sealing strip to be buckled and sealed with the storage tank, so that air and external pollutants are effectively prevented from entering the storage tank, microorganism samples in the storage tank are protected from being influenced by external factors, meanwhile, the situation that the samples in the storage tank are leaked or volatilized to cause deterioration of the samples is avoided, and the storage stability of the microorganism samples is improved.

The invention discloses a roof structure of a railway hopper car with a cover, which relates to the technical field of transportation equipment and comprises a fixed top cover component and a movable top cover component arranged on the fixed top cover component. The fixed top cover assembly comprises an arc-shaped framework, a top plate arranged on the arc-shaped framework and a longitudinal loading opening frame longitudinally arranged in the middle of the top plate. The movable top cover assembly comprises a square loading opening cover assembly, a circular top cover plate assembly, a top cover support, a top cover cross beam assembly, a top cover longitudinal beam assembly and a circular loading opening locking device. The square loading opening cover assemblies are arranged at the longitudinal loading opening frames in a sealed mode, translation of the square loading opening cover assemblies is achieved through pneumatic control, a plurality of round loading openings are formed in the square loading opening cover assemblies, the round top cover plate assemblies are arranged at the round loading openings in a sealed mode, and round loading opening locking devices are arranged at the round top cover plate assemblies. By means of the arrangement of the double-layer top cover and the multiple feeding ports, the technical problem that when a sliding rail deforms or a roller bearing is rusted, movement of the top cover is blocked is solved.