206results about How to "Operational security" patented technology

This utility model relates to the technical field of circuit breakers and discloses an explosion-proof circuit breaker switching device, including a housing mounted on the circuit breaker. The housing encloses a chamber to accommodate the circuit breaker. A laterally movable component is provided in the chamber. The movable component is connected to a knob via a transmission structure. The knob is exposed on the housing. The movable component has a mounting slot for the circuit breaker's on / off switch to be inserted. When the knob is rotated, the transmission structure drives the movable component to move laterally, and the mounting slot moves laterally with the movable component, driving the circuit breaker's on / off switch to swing. Thus, the circuit breaker can be controlled to open and close simply by rotating the knob, simplifying the switching device design and making operation more convenient and safer.

This utility model belongs to the field of product packaging quality inspection technology, and in particular relates to a product packaging compression resistance testing device, including a base for supporting the entire testing device, with anti-slip texture on its upper left surface; a controller including a central control module inside and a human-machine interface display module on its top outer wall, the human-machine interface display module being used to set compression resistance test parameters and display pressure values; and protective components, two sets of which are located on the upper left front of the base to prevent fragments from splashing. Positioning grooves are respectively formed inside the left end of the base and below the two sets of protective components. Four limiting rods are fixedly installed on the upper rear of the left end of the base, with a top plate fixed to the top of each limiting rod. This utility model can generate a change curve based on pressure values ​​and displacement, thereby facilitating the acquisition of more accurate packaging compression resistance test data, with high accuracy and reliability.

The utility model relates to a prefabricated column hoisting installation auxiliary device which comprises a lower-layer frame and an upper-layer frame, the lower-layer frame and the upper-layer frame are fixedly connected through four pieces of vertical angle steel, the lower-layer frame, the upper-layer frame and the four pieces of vertical angle steel are connected to form a frame barrel-shaped structure, and the caliber of the frame barrel-shaped structure is consistent with the size of a prefabricated column. A big-end-up cup opening frame is fixed to the top of the upper-layer frame, the upper portion of the cup opening frame is larger than the prefabricated column, levers are installed on the periphery of the cup opening frame, and idler wheels are arranged at the bottoms of the levers. When the auxiliary device is used, the device is positioned and placed according to a cup opening hole in the top of a cup opening foundation, the caliber position of the cylindrical structure of the frame is located in the center of the cup opening hole, the prefabricated column is aligned with the caliber of the upper-layer frame through the levers on the periphery, and then the prefabricated column continues to be put down; the prefabricated column is placed in the cup opening hole along the cylindrical structure of the frame, so that the prefabricated column is placed in the center of the cup opening hole, positioning is accurate, and operation is easy.

The present application relates to a kind of chip glue removal device and glue removal method, its device includes sander, bottom plate, rotating platform and be used for clamping chip clamping linkage mechanism, sander is installed at the one end of the upper surface of bottom plate, rotating platform is slidably arranged at the other end of the upper surface of bottom plate, clamping linkage mechanism is arranged on rotating platform, and can rotate with rotating platform, and clamping linkage mechanism can slide with rotating platform on bottom plate, to approach or away from sander, sander can be polished to the glue of the edge of chip clamped on clamping linkage mechanism remains.By clamping linkage mechanism, chip can be clamped, and the polishing range of chip to sander is adjusted by the sliding of rotating platform to polish, the orientation of chip is adjusted by the rotation of rotating platform, so that the glue on the surface of chip can be removed conveniently by once clamping, simple structure, easy and safe to operate, greatly improve glue removal efficiency, avoid chip damage.

The utility model relates to hub surface detection technical field especially relates to a kind of hub surface defect automatic identification device.The utility model provides such a kind of hub surface defect automatic identification device, it further includes workbench, cabinet door, electric guide rail, sliding seat, servo motor and placement seat, two cabinet doors are rotationally provided in workbench left side, electric guide rail is installed in workbench top, sliding seat is slidingly set on electric guide rail, servo motor is installed in sliding seat bottom, placement seat is rotationally set in sliding seat top, the output shaft of servo motor is connected with placement seat.By the telescopic rod of control cylinder drive top frame ascension, top frame ascension extrudes mounting rod and moves outward, drives top block to adhere to hub inner wall, when top block and hub are completely contacted, hub is automatically locked, so as to be fixed on placement seat, realize the quick locking hub of different sizes, improve the convenience and applicability of device use.

The present application relates to a kind of methods for catalytically converting methane to olefins, aromatics and hydrogen in joule heat coupled metal catalytic reactor.The methane feed gas heated by hot joule heat is passed into metal catalytic reactor for catalytic conversion reaction to prepare olefins, aromatics and hydrogen using joule heat as heat source.The conversion rate of methane is 35-85%;The selectivity of olefins is 65-90%;The selectivity of aromatics is 13-40%;Zero carbon deposition.The present application has the characteristics of electric heating conversion efficiency > 90%, long catalyst life, high methane conversion rate and product selectivity, zero carbon deposition, catalyst does not need to be enlarged, small industrialization difficulty, good process repeatability, safe and reliable operation, etc., and has broad industrial application prospect.

This utility model provides a medical sterile ice crusher, including an ice storage bucket, a drain bucket, an ice crushing bucket, a bucket lid, and a drive device. The top of the ice storage bucket is open, and a pouring spout is provided on one side of the ice storage bucket. The bottom of the ice storage bucket is detachably connected to the drain bucket, and several draining holes are opened on the bottom surface of the ice storage bucket, located on the side away from the pouring spout. The body of the ice crushing bucket is located inside the ice storage bucket, and the top of the ice storage bucket is detachably connected to the ice crushing bucket. An ice crushing blade is provided at the bottom of the ice storage bucket. The top of the ice crushing bucket is open, and the opening of the ice crushing bucket is detachably connected to the bucket lid. The drive device includes a rotating shaft, and a shaft hole is provided on the bucket lid, with the rotating shaft sleeved in the shaft hole. A crank rocker is provided at the top of the rotating shaft, and a turntable is provided at the bottom of the rotating shaft, with the turntable located above the ice crushing blade. This utility model solves the technical problems of existing automatic equipment being expensive, manual ice cutting being dangerous, ice water mixing, and difficulty in cleaning and disinfection.

An electric stabiliser (1) for stabilising a floating structure is described. The electric stabiliser (1) includes a track (2) for guiding a mover (6) as a moving stabiliser mass. A direct current (DC) linear motor (8) includes a planar stator (10) that extends along the track (2) and the mover (6) that is adapted to move forwards and backwards along the track (2) as the stabiliser mass. The planar stator (10) includes a polyphase stator winding (16) with a plurality of winding coils (14) connected to define a plurality of phase windings. The mover (6) includes a plurality of permanent motor magnets (40) facing the polyphase stator winding (16) that define a plurality of mover poles of alternating polarity (i.e., north and south polarity) along the track direction. Two active magnetic bearings (44, 48) is positioned between the track and a main body (32) of the mover (6) for selectively levitating the mover. In use, the active magnetic bearings (44, 48) levitate the mover (6) above the track and the DC linear motor (8) is controlled to move the mover (6) backwards and forwards along the track (2) to dampen a rolling or pitching movement of the floating structure, for example.

The invention discloses a bovine I-type tau interferon-ferritin fusion protein as well as a mutant and application thereof. The bovine I-type tau interferon is fused with a ferritin subunit, and interferon molecules are highly repeatedly and orderly displayed on the surface of a ferritin nanocage by utilizing the self-assembly characteristic of ferritin, so that a conformation suitable for the ferritin nanocage to play functions is formed, and the expression level, the structural stability and the antiviral activity of the tau interferon are remarkably improved. The fusion protein is subjected to rational design mutation to obtain a single-site or multi-site mutant with significantly improved antiviral activity and stability. According to the invention, a silkworm or insect cell eukaryotic expression system is adopted to express the fusion protein or the mutant thereof, and the expression system is safe to operate, simple and convenient in procedure, low in cost and extremely beneficial to large-scale industrial production; the prepared fusion protein or mutant nanoparticles can be applied to preparation of a plurality of drugs for preventing or treating bovine viral infection, tumors and immune system diseases and immunologic adjuvants for vaccine compatibility.

This utility model discloses a cableway suspended platform installation structure, relating to the field of building construction technology. It includes a suspended platform guide mechanism and a suspended platform suspension mechanism installed on the top of a building. The guide mechanism comprises a guide mechanism frame and a guide wire rope. The upper end of the guide wire rope is connected to the guide mechanism frame, and the lower end is connected to the bottom of the building. The guide wire rope is inclined relative to the ground. A suspended platform is installed on the guide wire rope, and a pulley mechanism is installed on the suspended platform. The guide wire rope is connected to the pulley mechanism. The suspended platform suspension mechanism comprises a suspension mechanism frame and a suspension wire rope. The upper end of the suspension wire rope is connected to the suspension mechanism frame, and the lower end is connected to the suspended platform. The suspension wire rope is also connected to the movable end of a hoist. This cableway suspended platform installation structure can be installed on inclined facades and can be used for curtain wall construction, etc. It is convenient to install and dismantle, safe to operate, and saves time, solving a series of problems such as difficult scaffolding erection, high costs of scaffolding measures, and impact on construction schedules.

This utility model provides an early warning system for the operating mechanism of a high-voltage circuit breaker, including a base, and a left side plate and a right side plate arranged parallel to each other on the top of the base. A first rotating shaft, a second rotating shaft, and a rotating column are provided between the left side plate and the right side plate. A first gear is provided on the first rotating shaft, and a second gear meshing with the first gear is provided on the second rotating shaft. A crank arm is provided at one end of the second rotating shaft, and a disc spring is connected to the crank arm. The other end of the disc spring is connected to the rotating column. A movable hinge is provided on the rotating column, and a telescopic rod is movably connected to the movable hinge. A movable part is provided at the front end of the telescopic rod, and a piston is movably connected to the movable part. A cylinder is provided inside the left side plate, and the piston is located inside the cylinder. A pipe is provided above the cylinder, and a detector for detecting the air pressure inside the cylinder is provided above the pipe. When the air pressure inside the cylinder changes, the detector monitors and transmits data in real time through the pipe. The system responds quickly, activates the protection mechanism, and achieves the early warning effect.

This invention discloses a six-degree-of-freedom underwater robot, comprising a frame, a propulsion system, a sensor monitoring system, and a controller. The propulsion system includes four horizontal vector thrusters and two vertical thrusters. The controller is communicatively connected to the propulsion system and the sensor monitoring system, and achieves independent, decoupled control of the propulsion system's six degrees of freedom based on multi-dimensional sensor data collected by the sensor monitoring system. This invention also discloses a corresponding six-degree-of-freedom underwater robot control system, including a host computer layer, a ROS core layer, a control layer, a drive layer, and a hardware terminal layer, all connected by communication. This solution optimizes the hardware layout, achieves independent, decoupled control of the six degrees of freedom, and improves underwater motion and hovering stability. This design features deep hardware and software synergy, improving underwater operational stability, shortening the development cycle, and enhancing operational safety, making it suitable for various scenarios such as underwater exploration, detection, and scientific research.

This invention proposes a self-lubricating vertical jack, aiming to solve the problems of insufficient lubrication, uneven lifting, and short service life of existing jack devices. It comprises a hydraulic cylinder, base, and pressure rod. The piston rod is covered with a lubricating coating, and the outer wall of the piston has a wedge-shaped groove filled with grease, which, together with the oil reservoir on the piston rod, achieves self-lubrication. Simultaneously, a limiting sleeve and a sealing ring enhance sealing and prevent leakage. A return valve and a safety stop valve on the base ensure operational safety. Through the synergistic effect of the lubricating coating, wedge-shaped groove grease, and oil reservoir, friction is reduced, extending the equipment's lifespan. The sealing structure effectively prevents hydraulic oil leakage, ensuring stable operation. The safety valve provides dual protection, improving operational safety. This invention is easy to operate, has low maintenance costs, and combines practicality and sealing, making it suitable for lifting operations in various scenarios.

This invention discloses a method for on-site monitoring of vertical loads on concrete rectangular cross-section columns, comprising the following steps: selecting a loading test area in the lower part of the column to form a column loading zone; arranging a column confining pressure loading system; placing a leveling rod and orthogonal strain gauges on the loading test area; starting the loading motor to complete the confining pressure loading of the column loading zone; calculating the vertical load of the column based on the three-dimensional static equilibrium condition of the column's small deformation and low confining pressure elastic state, plotting the column's vertical load time-effect characteristic curve, and then combining it with the column's vertical bearing capacity to assess the bearing stability of the reinforced concrete column member during service. This invention can overcome the problems of column bending, tilting, and human error caused by unreasonable vertical load monitoring schemes or monitoring results for reinforced concrete column structures, as well as the problems of technical complexity, high risk, and high monitoring costs. It has the advantages of strong environmental adaptability, rapid and simple testing method, safe operation, and low cost.

The embodiment of the utility model discloses diaphragm cutting equipment which comprises a rack, a working platform is arranged on the rack, a transverse moving assembly is arranged on the working platform, a longitudinal moving assembly is arranged on a transverse sliding frame, a tool bit assembly is arranged on the longitudinal moving assembly, and the transverse moving assembly comprises a sliding assembly and a supporting driving assembly which are matched with each other. The supporting driving assembly comprises a transverse driving motor, the driving end of the transverse driving motor drives a synchronous wheel through a gear, the synchronous wheel is meshed with a synchronous belt transversely arranged on the working platform, and the sliding assembly comprises transverse sliding rails symmetrically arranged on the two sides of the working platform and sliding blocks matched with the transverse sliding rails. The transverse sliding frame is connected with the sliding block, the synchronous wheel drives a driven gear installed on the transverse sliding frame through a synchronous gear arranged outside the synchronous wheel, and the two supporting and driving assemblies are in linkage through a synchronous shaft.

An electric stabiliser (1) for stabilising a floating structure is described. The electric stabiliser (1) includes a track (2) for guiding a mover (6) as a moving stabiliser mass. A direct current (DC) linear motor (8) includes a planar stator (10) that extends along the track (2) and the mover (6) that is adapted to move forwards and backwards along the track (2) as the stabiliser mass. The planar stator (10) includes a polyphase stator winding (16) with a plurality of winding coils (14) connected to define a plurality of phase windings. The mover (6) includes a plurality of permanent motor magnets (40) facing the polyphase stator winding (16) that define a plurality of mover poles of alternating polarity (i.e., north and south polarity) along the track direction. Two active magnetic bearings (44, 48) is positioned between the track and a main body (32) of the mover (6) for selectively levitating the mover. In use, the active magnetic bearings (44, 48) levitate the mover (6) above the track and the DC linear motor (8) is controlled to move the mover (6) backwards and forwards along the track (2) to dampen a rolling or pitching movement of the floating structure, for example.

The utility model discloses a convenient-to-replace emery ring with a quick-release connecting component, which particularly relates to the technical field of manicure and comprises an emery ring shaft, a positioning step is fixedly connected to one end of the emery ring shaft, a connector is arranged on the front side of the positioning step, an emery ring is arranged on the outer side of the connector, and a supporting component is mounted in the connector. A connecting mechanism is mounted in the positioning step; the supporting assembly comprises a sand cap, one side of the sand cap is fixedly connected with a threaded rod, the threaded rod is in threaded connection with the interior of the connector, one end of the threaded rod is fixedly connected with a boss, and the boss is rotationally connected with the interior of the connector. Through the arrangement of the supporting assembly and the connecting mechanism, effective supporting can be provided on the inner side of the sand ring, the risk that the sand ring flies out is reduced, operation is safer and more reliable, meanwhile, the connector can be rapidly replaced so that a proper connector can be conveniently replaced according to the polishing requirement, and therefore sand rings of different granularities and shapes can be used.

The application discloses a method for digesting and separating fluorinated aluminum by program, which comprises the following steps: placing a catalyst with metal elements supported on alumina as a carrier into a reaction container of a cluster digestion device, adding hydrochloric acid and / or nitric acid, setting a digestion program, introducing inert gas for pre-pressurization, performing primary digestion, and simultaneously starting a condensation reflux atomizer; after the program is completed, adding hydrofluoric acid, setting a digestion program, and performing secondary digestion; after the digestion is completed, entering a cooling and crystallization program, performing cooling and crystallization, and separating to obtain a sample solution to be detected and a solid; the solid is dried and calcined to obtain fluorinated aluminum crystals, and the liquid is used for detecting the content of metal elements. The method is applied to the digestion treatment of the alumina sample with metal elements supported thereon, has a large sample treatment range, complete digestion, no volatile loss of elements, and can separate AlF3 in an alpha crystal form through the program digestion of the digestion device.

The invention discloses a pulse recuperating device and a combined qi and blood recuperating instrument, which are used for performing warm and vibration stimulation on perineal acupoints and related parts around the perineal acupoints, and comprise: a handle-shaped holding part; the guide head is made of a heat conduction material, the guide head comprises a connecting part and a working part, the connecting part of the guide head is fixed with one end of the holding part, and the working part of the guide head is provided with a limiting surface attached to the perineum acupoint and related parts around the perineum acupoint or is in a three-dimensional shape; the vibration module is used for driving the guide head to vibrate; and the heating module emits heat in a working state and transmits the heat to the guide head. The invention aims to solve the technical problems that the traditional massage is high in requirement, slow in effect and easy to spread diseases, and the massage of the current instrument is harmful to the human body, and provides the pulse conditioning device and the combined qi and blood conditioning instrument which are low in application requirement and can be used for safely and effectively conditioning pulse.

The utility model relates to the technical field of movable cultivation, and discloses a movable cultivation platform which comprises a driving ship, a cultivation mechanism is arranged on the rear side of the driving ship, a sealing mechanism is arranged at the top of the cultivation mechanism, the cultivation mechanism comprises a cultivation box, the cultivation box is fixedly connected to the rear side of the driving ship, and the sealing mechanism is arranged at the top of the cultivation box. A protective fence is fixedly connected to the top of the breeding box, an observation table is fixedly connected to the periphery of the protective fence, and a first partition plate is fixedly connected to the inner side of the breeding box. During use, through the arranged breeding mechanism and the two symmetrically-distributed driving ships, the breeding platform can flexibly move in a water area, and the breeding area is rapidly adjusted; the aquaculture space is scientifically divided through the first partition plate and the six symmetrically-distributed second partition plates in the aquaculture box, multi-type aquatic product partition aquaculture is achieved, species mixing is avoided, the aquaculture efficiency and the product quality are improved, and meanwhile classified management and fishing operation are facilitated.

The application relates to the technical field of drug synthesis, in particular to a synthesis method and application of a 2-(cyclopropylamide)thiazole-4-amide derivative. The thiazole structure is shown in formula I. The preparation method of the 2-(cyclopropylamide)thiazole-4-amide derivative is as follows: the compound shown in formula I is obtained by reacting the compound shown in formula II in the presence of HATU, DIPEA, a primary amine or a secondary amine and tetrahydrofuran. The 2-(cyclopropylamide)thiazole-4-amide derivative has the effect of relieving Alzheimer's disease, and is characterized by strong cholinesterase inhibition activity.

The invention relates to the technical field of pesticide intermediates, in particular to a preparation method of a fluralan synthetic intermediate, which comprises the following synthetic route: taking parachloroaniline as an initial raw material, and carrying out acylation reaction on parachloroaniline and pivaloyl chloride in an alkaline solvent to generate a compound 2; performing chlorination reaction on the compound 2 and a chlorinating agent to generate a compound 3; reacting the compound 3 with magnesium in a nitrogen environment to obtain a Grignard reagent intermediate compound 4; reacting the compound 4 with a trifluoroacetic acid derivative to obtain a compound 5; reacting the compound 5 with concentrated hydrochloric acid to obtain a compound 6; generating a compound 7 from the compound 6 under the action of a chlorinating agent; and finally, synthesizing the compound 7 into a compound 8 under the action of a nitrite reagent. The preparation method has the advantages of safe operation, few by-products, mild conditions, easily available raw materials and simple optimization, and is more suitable for industrial large-scale production.

The utility model discloses a slurry conveying structure with dredging and plugging functions belongs to pipeline conveying technical field. Including pipeline, pump, discharge port and dredging mechanism, be equipped with the discharge valve on the discharge port and it is close to the discharge port setting of pump, the dredging mechanism includes discharge pipe, plug, drill rod and electric drill, the discharge port horizontal setting and its from inside to outside are connection section, three -way pipe section and plug section in proper order, and the connection section is connected with the pipeline, and the discharge valve is located between the connection section and three -way pipe section, and the downside of three -way pipe section is equipped with the discharge pipe, and the plug section is detachably equipped with the plug, the plug closes the outer end of plug section and is equipped with the drill rod on it along the discharge port direction, the drill rod rotates and is equipped on the plug, and it can move along the discharge port direction, and it is sealedly connected with the plug, and the inner end is equipped with the drill bit and can pass through the discharge valve inward, and the outer end is equipped with the connector of detachable connection with electric drill, when the pipeline normal work, the plug is removed, and the discharge valve is closed, when dredging, the plug is installed, and the discharge valve is opened.

The application discloses a 10kV high-voltage switch cabinet single-gas-chamber gas diffusion test device, a test method, a system, equipment, a medium and products, and relates to the field of power equipment state monitoring and fault diagnosis. The device comprises a box body which is identical to the bottom gas chamber structure of the 10kV high-voltage switch cabinet, and is internally provided with a plurality of fault simulation points of a contact area, a conductor lap joint area, a cable terminal area and a bottom wiring area, and a plurality of monitoring points located at the front side position and the rear side position of the lower right corner of the gas chamber; the box body is also provided with a comb-shaped heater to simulate the operating temperature rise convection environment. The test method based on the device comprises the following steps: injecting characteristic gas to simulate discharge faults of different positions and intensities through the fault simulation points, setting the temperature rise working condition through the comb-shaped heater, synchronously collecting time sequence data of the characteristic gas concentration at the plurality of monitoring points, and extracting gas transport characteristic parameters. The application provides a standardized and repeatable test platform for studying gas diffusion rules and optimizing sensor layout.

The invention provides a method for detecting and positioning a large-current loop fault of a temporarily-arranged color board room on a construction site, and the method comprises the following steps: determining a fault type: determining the fault type, and carrying out the preprocessing; a range delimiting step of determining a laying path of a fault line and delimiting a scanning range of a fault area; a preliminary determination step: scanning the line in the scanning range, and preliminarily determining a fault position; and a determination step: detecting the fault position and determining a fault point. According to the method, through preprocessing, preliminary determination through scanning and final determination through detection, rapid and accurate identification of fault points can be realized, manual line disassembly is not needed, the detection time is saved, the troubleshooting efficiency is improved, and the operation safety can be ensured.

The invention discloses a double-channel control system and method for full-process automatic operation. The system comprises a central control unit, double test stations, a sensing detection unit and a man-machine interaction unit. The central control unit automatically loads clamping poses and motion parameters according to product models and drives the multi-dimensional electric adjusting platform to achieve high-precision automatic positioning. The dispatcher dispatches the two stations dynamically in a time-sharing mode in a 200-millisecond period, and mechanical interference is prevented through a safe locking timer. The system independently performs real-time fault diagnosis on each station, wherein the overcurrent fault needs that the current continuously exceeds 8.0 A for 20 milliseconds, and the displacement out-of-tolerance needs that the deviation continuously exceeds 1.5 mm for 50 milliseconds. Once a single-station fault occurs, atomization isolation is immediately performed and a single-channel mode is reconstructed, so that continuous operation of the test is guaranteed. According to the invention, high-efficiency, safe, full-automatic remodeling and intelligent fault tolerance are realized, and the test efficiency and the system reliability are improved.

An emergency shutdown device for thin oil-lubricated bearing failure belongs to the technical field of thin oil bearing lubrication equipment. It is used for emergency shutdown when a thin oil-lubricated bearing fails. The technical solution is as follows: the upper oil pipe and the return oil pipe are connected to the bearing lubrication channels at both ends of the fan. The oil inlet end of the upper oil pipe is connected to the main oil tank's oil supply pipe, and the oil outlet end of the return oil pipe is connected to the return port on the top surface of the main oil tank. An oil pump is installed in the main oil tank's oil supply pipe. The high-level oil tank's oil outlet pipe is connected at the junction of the upper oil pipe and the main oil tank's oil supply pipe. A diffuser pipe is connected between the high-level oil tank and the main oil tank. A fault response device is installed in the high-level oil tank's oil outlet pipe. This utility model has a simple structure, safe operation, convenient maintenance, and improves the reliability of bearing operation. It greatly reduces bearing damage caused by lubrication system failures, prevents safety accidents caused by bearing damage, and enables timely emergency shutdown, avoiding significant losses for enterprises. It is worthy of promotion and application in the industry.

The invention relates to the technical field of strain breeding, in particular to a high-yield beta-glucan Meyrowia guilliermondii strain and application thereof. According to the present invention, the high-yield beta-glucan mutant strain obtained through ARTP mutagenesis has the name of Meyerozyma guilliermondii NCUASD7, has been preserved in Guangdong Microbial Culture Collection Center on November 28, 2025, and has the preservation number of CDMCC NO: 67365; aRTP mutagenesis is high in mutation rate, good in hereditary stability and safer to operate, a large number of mutation libraries can be obtained within a short time, high-throughput primary screening and shake flask secondary screening are conducted through a 24-deep-hole plate, a yeast mutant strain with the high beta-glucan yield capacity is obtained, then subculture is conducted on the high-yield mutant strain, the hereditary stability of the strain is verified, and the high beta-glucan yield is obtained. The mutant strain not only has the characteristic of high yield of beta-glucan, but also can maintain good genetic stability.

The utility model relates to the technical field of automobile battery cover plate machining, in particular to an automobile battery cover plate edge trimmer which comprises a workbench, a rack is fixedly connected to the top of the right side of the workbench, and a cutting mechanism is arranged on the front face of the rack. Sliding bases are movably installed at the two ends of the top of the left side of the workbench, and overturning clamping mechanisms are arranged on the opposite sides of the top ends of the two sliding bases. According to the utility model, the bidirectional screw rod drives the sliding seat to be matched with the turnover clamping mechanism for use, and the electric push rod B controls the limiting block and the motor C drives the clamping frame to cooperatively act, so that cover plates with different lengths are clamped and limited and locked after being turned over; the problems of positioning errors and machining interruption caused by manual clamp adjustment and workpiece overturning in the prior art are solved, and the clamping precision, the machining consistency and the production continuity are remarkably improved.