74results about How to "Meet stability requirements" patented technology

The invention relates to a glass, cellular board and grating combined curtain wall structure. The curtain wall structure comprises a stand column, a blocking board, a glass board, a cellular board, a first grating and an overhanging piece. Overhanging pieces are vertically and fixedly connected to the outer end faces of the stand columns at intervals; the blocking plate and the glass plate are installed on the two adjacent stand columns. A heat-insulating filling area is formed among the blocking plate, the upright post and the wall body and is used for arranging a heat-insulating material; the outer end of the overhanging piece penetrates out of the space between the blocking plate and the glass plate and extends to the outer side of the honeycomb curtain wall area and the outer side of the glass curtain wall area; the cellular board is distributed on the outer side of the blocking board, and the left and right ends of the cellular board are fixedly connected with the outer ends of the left and right adjacent overhanging pieces respectively; the first grating is vertically fixed on the overhanging piece and is positioned between the honeycomb curtain wall area and the glass curtain wall area; and a wind pressure slow release area is formed among the honeycomb plate, the first grating and the blocking plate. The problems that an existing curtain wall is serious in light pollution, poor in heat preservation effect, poor in wind pressure resistance and single in visual effect can be solved.

The invention provides a connecting device of a floating body module and a using method of the connecting device, and the connecting device comprises a limiting plate which is used for being movably connected with the floating body module; the flexible connector is located between the floating body module and the limiting plate, and the flexible connector is movably connected with the floating body module and the limiting plate; the rigid connector comprises a first rigid connecting assembly and a second rigid connecting assembly, the first rigid connecting assembly is connected with the floating body module, the second rigid connecting assembly is connected with the limiting plate, and the first rigid connecting assembly is movably connected with the second rigid connecting assembly; and the switching mechanism is arranged on the limiting plate, the switching mechanism is connected with the second rigid connecting assembly, and the switching mechanism controls connection of the first rigid connecting assembly and the second rigid connecting assembly. Switching between rigid connection and flexible connection between the floating body module and the limiting plate can be achieved, the requirement for the bearing capacity of the connector under the severe sea condition can be met conveniently, the rigid connector is prevented from being damaged, and the service life of the rigid connector is further prolonged.

The invention discloses a floating safety control method, device and equipment, a medium and an aerial work platform, the floating safety control method comprises the steps that a first inclination angle is obtained, and the first inclination angle is the inclination angle of a vehicle frame when a vehicle does not fall into a pit; a second inclination angle is obtained, wherein the second inclination angle is the inclination angle of the frame after the vehicle falls into the pit; obtaining a first change angle, wherein the first change angle is a difference value between the first inclination angle and the second inclination angle; executing a floating action or a safety control action according to the first change angle; the floating action is used for controlling and triggering the action of the single-side floating oil cylinder corresponding to the corresponding single-side floating switch after the vehicle falls into the pit, and the safety control action is used for limiting the action of the floating oil cylinder. The aerial work platform can safely control the action of the floating oil cylinder, and safe operation and stable operation of the aerial work platform are facilitated.

According to the pole piece thickness control method, a dynamic regulation and control mechanism is constructed by detecting the thickness of a pole piece in real time and calculating the thickness deviation in real time, once the thickness deviation is larger than a preset threshold value, a system can give out an instruction in real time, a rolling mechanism is driven to adjust a roll gap, and it is ensured that the rolling thickness of the follow-up pole piece is stable and consistent; the requirements on the thickness consistency and stability of the pole piece are met, so that the product defects are reduced, and the product qualification rate is improved; reworking and scrapping are reduced, the production cost is reduced, meanwhile, the downtime is shortened, and the production efficiency is improved.

The invention belongs to the technical field of streaming media data processing, and relates to a video conversion service-based streaming media optimization processing method for a video monitoring platform. Comprising the following steps: a client initiates a stream taking request, the request is issued to a streaming media module, and the streaming media module transmits streaming media information to a device access service after creating a channel; the device access service calls an sdk interface according to a related protocol, and sends address port information of platform flow receiving to the device; the equipment is connected with the platform after receiving the information, the platform selects an optimal video conversion service according to a preset strategy, and the equipment sends audio and video data to the selected video conversion service; the video conversion service receives connection and audio and video data of the equipment and forwards the connection and the audio and video data to the streaming media; according to the invention, flexible connection between the device and the streaming media is realized to improve the streaming reliability, multiplexing of the streaming port is achieved to reduce the security risk, load balancing is realized by means of the video conversion service, resource utilization is optimized, the adaptability is improved, and the overall performance of the video monitoring system is improved.

The invention relates to the technical field of wind power blade mounting equipment, in particular to an unmanned aerial vehicle assisted wind power blade mounting device which comprises a crane, a mounting groove position is formed in the upper side of the crane, and a parking table is fixedly mounted in the mounting groove position; an unmanned aerial vehicle is placed above the parking platform, and a fixing mechanism used for fixing the unmanned aerial vehicle is further arranged above the parking platform. The top of the parking table is connected with a top plate through a lifting rotating mechanism, and a pressing mechanism abutting against the unmanned aerial vehicle is arranged at the bottom of the top plate. Through the structural design that the parking table is integrated on the crane, when the wind power blade is hoisted, remote video watching can be conducted on the installation position by releasing the unmanned aerial vehicle; in this way, the problem that the hoisting position is not accurate due to a hoisting blind area can be avoided, the installation performance and convenience of operation are greatly improved, and the top plate is designed for shielding protection for the unmanned aerial vehicle.

The present application relates to the technical field of steel rail construction, in particular to a mounting tool for damping steel rail, comprising a supporting structure, a pull rod and a pull hook, the supporting structure forms a supporting cooperation with the corresponding part on the steel rail; the pull rod is arranged on the supporting structure and can move and rotate relative to the supporting structure; the pull hook is connected to one end of the pull rod close to the rail bottom, and the pull hook is provided with a hook part for hooking the bottom of the spring piece. The present application drives the pull rod to move with the supporting structure as the fulcrum or counterforce point, drives the pull hook to move, forces the spring piece to elastically deform, thereby realizing the rapid installation or disassembly of the spring piece at the rail bottom of the steel rail, overcoming the defect that the large clamping force of the spring piece is difficult to operate manually, and having the advantages of labor-saving operation, efficient installation and disassembly, good installation consistency and the like.

This utility model relates to the field of electrical energy detection technology, and proposes a high-current electrical energy detection device with closed-loop control function. The device includes: a programmable power source module, including an output drive unit for outputting current, voltage signals, and waveforms within a large current range; a standard measurement module connected to the output drive unit for detecting the current, voltage signals, and waveform parameters output by the output drive unit; a waveform sampling module connected to the output drive unit for sampling the waveform output by the output drive unit; a closed-loop control module bidirectionally connected to the programmable power source module and the waveform sampling module for adjusting the current, voltage signals, and waveforms; and an external device detection interface connected to the output terminal of the output drive unit for connecting different types of high-current metering devices. This utility model solves the problems of measurement error superposition, unstable output, and insufficient measurement range in traditional detection devices.

The present invention discloses a method for group lifting operation of a gantry on a rail line. Several gantry cranes are longitudinally fixed on a first transport flat car through a rotating mounting seat. A new turnout and a lifting tool are placed on a second transport flat car and transported to a designated position on the operation site by a rail car. The first transport flat car is towed by the rail car, and the gantry cranes are deployed to designated positions of the line in sequence using the rotating mounting seat. The rail car tows the second transport flat car to move to the designated position, and the lifting tool is connected to the lifting mechanisms of several gantry cranes to realize group lifting operation, and the lifting tool moves and lifts the new turnout. The rail car tows the first transport flat car and the second transport flat car away, and a group lifting is performed by several gantry cranes to move the new turnout horizontally to the side close to the support legs. The present invention can solve the technical problems of the existing method having a single function, low synchronization control accuracy, lack of control over the final position of each crane and load consistency during operation, and inconvenient operation and maintenance.

The invention relates to the technical field of power grids, in particular to a distributed new energy acceptance capacity dynamic calculation method and system, and the method comprises the steps: constructing a combined small-disturbance dynamic model for distributed new energy access, and obtaining a stable constraint boundary; establishing an optimization model by taking distributed new energy acceptance capacity maximization as a target function; and solving the optimization model by adopting a self-adaptive particle swarm algorithm to obtain the maximum acceptance capacity of the distributed new energy in the current operation state of the power distribution network. According to the invention, based on the equivalent dynamic model of the network-forming inverter and the state-space equation of the power distribution network, the combined small-disturbance dynamic model is constructed and the stability analysis is carried out, the stability constraint is directly introduced into the acceptance capacity optimization, and the adaptive particle swarm algorithm is adopted for solving, so that the maximum access capacity of the distributed new energy can be accurately evaluated. Meanwhile, small-interference stability of the system and operation constraints of the power distribution network are considered, and calculation precision, efficiency and engineering application value are improved.

This invention discloses a method for preparing and applying an antibacterial composite coating based on quaternized zinc oxide nanoparticles. The preparation method includes: grafting quaternary ammonium salt compounds onto the surface of zinc oxide nanoparticles to prepare synergistic antibacterial nanoparticles; modifying the substrate surface by co-deposition of dopamine and polyethyleneimine to introduce active functional groups; and spraying or dipping the quaternized zinc oxide nanoparticles onto the modified substrate surface to obtain the antibacterial composite coating. This novel antibacterial material preparation scheme can integrate the advantages of zinc oxide nanoparticles and quaternary ammonium salts, while solving key technical problems such as nanoparticle aggregation, weak interfacial bonding, and limited antibacterial efficiency. It is of great significance for promoting the upgrading of hygiene and safety in the fields of medicine, food, and building materials.

This invention discloses a flexible protection structure for modified and reinforced surface soil slopes of high-fill embankments and a method for stability prediction. The protection structure includes a multi-level platform slope and a drainage structure. The top of each platform is a flexible retaining structure, which is constructed in layers of low-dosage modified soil. Each layer of low-dosage modified soil is wrapped by a layer of geogrid. Vertical steel beams for support are installed inside the flexible retaining structure at the toe of the slope. The slope of the multi-level platforms is filled with high-dosage modified soil. The drainage structure includes a mesh-like water collection and interception structure, T-shaped drainage pipes, and drainage boards. This invention fully utilizes the skeletal function of the slope protection structure, the erosion and softening prevention function of the drainage structure, and the flexible retaining structure to protect high-fill embankment slopes in hot and humid southern regions under the premise of low construction cost, fast construction speed, and guaranteed construction quality.

The utility model relates to mechanical processing technical field, concretely is a horizontal machining center workstation quick positioning locking device, include: base is provided with the sliding slot, adjusting assembly includes the sliding block, and the sliding block is connected with the sliding slot of base sliding, and the sliding block is provided with four and is provided with through -hole in the middle, fixed component, including support axle, support sleeve, connecting axle and clamping plate, support axle is welded on the sliding block and among two settings have thread, support sleeve is connected with the threaded support axle screw thread and is connected with two outer two support axle sliding, and the connecting axle bottom end is rotatably connected with the support sleeve, and the clamping plate is connected with the connecting axle sliding, and the device is through the cooperation of adjusting assembly and fixed component, realizes the quick positioning of workstation and the steady locking of object.

The utility model relates to a kind of miniature direct-current brushless motor, including shell, and shell is equipped with accommodating cabin;With the motor rear cover and motor front cover of accommodating cabin seal connection;Stator core is equipped in accommodating cabin;With the rotor assembly matched with stator core;PCBA board is equipped in accommodating cabin;Motor rear cover is equipped with electric connection interface, electric connection interface is operatively electrically connected to PCBA board;The center of motor rear cover is equipped with the stator support shaft extending into accommodating cabin, stator core is fixedly sleeved on stator support shaft;Motor front cover is equipped with insert sealing joint part, insert sealing joint part is used to insert into gear box and form sealed connection with gear box;The output end of the motor shaft of rotor assembly extends outward through insert sealing joint part.It replaces traditional motor.The miniature direct-current brushless motor can effectively solve the problems in the prior art through innovative structural design, improve the performance, reliability and service life of motor in smart home device.

The invention relates to anisotropic wood-based cellulose dynamic self-adaptive hydrogel as well as preparation and application thereof, and provides a method for oxidizing a wood frame and constructing dynamic hydrogel through reversible bonds for the first time, and oxidized wood not only retains an original frame structure, but also obtains a larger channel and a functional group capable of constructing the reversible bonds; therefore, construction of anisotropy and a dynamic structure is realized, and tissue regeneration is promoted. The raw materials needed by the method are simple and easy to obtain, the preparation method is simple and easy to implement, low in cost and environmentally friendly, the hydrogel material is a potential tissue repair hydrogel material, and meanwhile a feasible new thought is provided for the field of tissue repair.

The invention discloses a zero-dimensional indium-based organic-inorganic hybrid perovskite material and a synthesis method thereof, and belongs to the technical field of photoelectric materials, the perovskite material has a general formula, R is one or more organic cations selected from methylamine, formamidine and cesium, and X is one or more halide ions selected from methylamine, formamidine and cesium; the invention further discloses a synthesis method of the material, the synthesis method comprises the steps of precursor solution preparation, coordination regulation and control, solvothermal reaction, product separation, surface modification, purification and drying, and the crystal structure and the surface chemical environment are precisely regulated and controlled through the synergistic effect of coordination regulation and surface passivation. The photoluminescence quantum yield of the material reaches 82% or above, and the material has excellent luminescence performance in a solution state, has ultrahigh environmental, water and thermal stability, and is lead-free, non-toxic and environment-friendly; the material can be widely applied to the photoelectric fields of light emitting diodes, X-ray scintillators, photocatalysis and the like, and the device performance is excellent.

The utility model belongs to the technical field of PVC (polyvinyl chloride) pipeline connection, and particularly relates to a special device for bonding energy storage system pipelines, which comprises a PLC (programmable logic controller) control mechanism, a tooling platform, a plurality of groups of pneumatic pushing mechanisms, clamping mechanisms, supporting mechanisms and sliding mechanisms, according to the scheme, under the cooperation of the PLC control mechanism, the tool platform, the pushing mechanism, the clamping mechanism, the supporting mechanism and the sliding mechanism, full-automatic control over the processes of positioning, fixing, bonding and the like of pipeline workpieces in the production process can be achieved, operation is easy, manual bonding is not needed, the working intensity and the working cost of manual bonding are greatly reduced, and the production efficiency is improved. And the production efficiency and the product quality are improved, and large-scale mass production can be met.

The present application discloses a floating wind turbine foundation and a wind turbine generator set, wherein the floating wind turbine foundation comprises: a bearing structure, comprising a bearing base and a plurality of first floats connected to the bottom of the bearing base, wherein the plurality of first floats are distributed along the circumference of the bearing base, and the bearing base floats on the water body through the plurality of first floats; a balancing structure, which is connected to the bearing base, and the balancing structure comprises a plurality of guide rails distributed along the radial interval of the bearing base and a movable balancing block arranged on the guide rails, wherein each guide rail is arranged below the bearing base and extends outwards from the center of the bearing base, and the movable balancing block is movably arranged along the length direction of the guide rail. The floating wind turbine foundation of the present application has a better balancing ability and can improve the stability of the wind turbine generator set.

The utility model provides a shell structure of an automobile controller with an integrated shell and an interface panel, which belongs to the technical field of automobile controllers and comprises a lower shell, an upper cover inserted at the end part of the lower shell, and a mainboard fixedly connected inside the lower shell, the lower shell comprises a shell body, a supporting column arranged on the inner side wall of the shell body, an installation hole formed in the side wall of the shell body and an insertion strip arranged on the side wall of the end portion of the shell body. The upper cover comprises a cover plate base body and a buckle arranged on the side wall of the end portion of the cover plate base body. The automobile controller shell has the advantages that the lower shell and the upper shell are used in cooperation, stable connection is formed between the automobile controller shell and a mainboard, the overall structural strength of the automobile controller shell is effectively improved, the automobile controller shell can adapt to various vibrations and impacts in the running process of an automobile, elements such as the internal mainboard are protected, and the service life of the automobile controller shell is prolonged. Damage to the main board in the installation and use process is effectively avoided, and meanwhile dislocation of the main board in the installation process can be prevented.

The application is suitable for the technical field of support regulation and control, and discloses a water-rich roadway tunneling support regulation and control method based on real-time geophysical prospecting feedback, which comprises the following steps: obtaining initial support parameters of a to-be-tunneling section and real-time geophysical prospecting data in front of a current tunneling face; determining a predicted evolution curve of the surrounding rock of the to-be-tunneling section under the current tunneling disturbance based on the real-time geophysical prospecting data and a preset surrounding rock stability analysis model; obtaining surrounding rock deformation measured data of a section exposed in the current tunneling process, correcting the surrounding rock stability analysis model according to the measured data, and generating a corrected surrounding rock evolution curve of the to-be-tunneling section by using the corrected surrounding rock stability analysis model. The application effectively solves the defect that a traditional support scheme cannot respond to dynamic changes of surrounding rock in a tunneling process in real time due to the dependence on static and discrete drilling data, improves the prediction accuracy of the surrounding rock stability analysis model, and provides a geological basis for dynamic support regulation and control.

A special rear suspension for an engineering truck relates to the technical field of engineering truck accessories and comprises a rear suspension welding part, a rear suspension tail plate welding part is fixed at the tail of the rear suspension welding part, a plurality of rear suspension handrails are fixed on the side face of the rear suspension tail plate welding part, and two groups of oil tank fixing plates which are symmetrically arranged front and back are fixed in the middle of the rear suspension welding part. A water pump base is mounted in the middle of the rear suspension welding part, a rotating shaft lug plate is fixed to the position, close to the bottom, of the middle of the rear suspension welding part, a motor mounting plate is mounted on the upper portion of the front end of the rear suspension welding part, and a rear beam welding part is fixed to the tail of the rear suspension welding part. The drill jumbo is convenient for workers to carry out collective maintenance, meanwhile, the overall shape of the drill jumbo can be reduced, the structure of each welding part meets the overall stability requirement, and the drill jumbo is simple and reasonable in structure, high in reliability, high in integration and short in production period.

The present invention discloses a vehicle queue control method based on encrypted transmission of state information in a zero-trust environment, including: each following vehicle in the vehicle queue receives the state information sent by its preceding vehicle; wherein the state information is encrypted and decrypted and verified by digital envelope technology when the vehicles send and receive the state information; each following vehicle in the vehicle queue performs the following operations: using a model prediction algorithm to calculate and predict the state information of the current vehicle at Np moments in the future; using a state prediction model to calculate the expected state information of the current vehicle at Np moments in the future; using an MPC objective function to calculate and generate the optimal control input of the current vehicle; and finally controlling its operating state based on the optimal control input of the current vehicle. The present invention introduces symmetric encryption algorithms and asymmetric encryption algorithms under a zero-trust framework, and at the same time predicts the state and expected state at future moments through the state information of the vehicle and its preceding vehicle to generate control inputs that meet the vehicle queue control requirements.

The invention discloses a shaft combined construction method, and relates to the technical field of shaft construction. Comprising the following steps that firstly, construction preparation is conducted, a raise boring machine is selected, and well mouth positioning and raise boring machine leveling are conducted; step 2, guide hole construction: adopting graded drilling to form a guide hole penetrating through the upper and lower horizontal planes of the vertical shaft; 3, expanding excavation construction is carried out, slope expanding, drilling and blasting operation is carried out, and vertical shaft full-section zoning and layering expanding excavation is carried out from top to bottom with the guide hole as the center; fourthly, primary supporting is carried out, and supporting is synchronously carried out on the expanding excavation face when one layer is expanded and excavated in the zoning and layering expanding excavation process; and 5, secondary supporting is conducted, specifically, after expanding excavation and primary supporting construction are conducted to the bottom of the vertical shaft, secondary supporting is conducted on the wall face of the vertical shaft from bottom to top through the slip form. The mode that the raise boring machine guide hole and manual expanding excavation are combined is adopted, the problems of ventilation, drainage and deslagging existing in the manual expanding excavation process are solved in advance through the guide hole, the technology of secondary lining from bottom to top of the slip form is combined, and the time of the supporting procedure is greatly shortened.

The utility model relates to the technical field of circuit board detection, and discloses a circuit board whole-disc material taking device which comprises a moving mechanism; the sucking mechanism is arranged on the moving mechanism, and the moving mechanism can drive the sucking mechanism to be close to or away from a material disc to be grabbed; the suction mechanism comprises a suction nozzle mounting plate and a plurality of suction nozzle assemblies, the suction nozzle mounting plate is arranged at the moving end of the moving mechanism, each suction nozzle assembly is composed of a plurality of suction nozzles, the suction nozzle assemblies are mounted on the suction nozzle mounting plate, and the suction nozzles belonging to the same suction nozzle assembly are communicated with the same air chamber. And the suction action is uniformly controlled through the same air chamber. According to the circuit board whole-disc material taking device provided by the utility model, a plurality of groups of suction nozzle assemblies can be arranged to suck the whole disc of circuit boards at the same time according to the number of the circuit boards of the material disc, so that a large number of circuit boards can be quickly grabbed, and flexible circuit boards of more than 100PCS can be taken and placed at the same time.

The invention relates to the technical field of aquaculture environment control, and discloses a cold region crayfish hatchery Internet of Things intelligent regulation and control system, which comprises a full-automatic hatching system, and is characterized in that the full-automatic hatching system comprises a hatching unit, an environment regulation module, an identification module, a decision module and an execution unit; the hatching unit divides the crayfish hatching farm into a plurality of groups of hatching sub-units with the same area, and the interiors of the hatching sub-units are provided with the same quantity of crayfish fertilized eggs. The execution unit regulates and controls the heater, the refrigerator, the humidifier and the dehumidifier according to control instructions (first / second / third decisions and abnormal instructions) generated by the decision module and triggers the early warning device to send early warning information to workers in an abnormal state, and an intelligent management and control system with full-process automation and manual intervention cooperation is formed. The hatching success rate and the breeding efficiency are obviously improved.

This invention relates to the field of solid waste cementitious material preparation technology, specifically to a rapid-setting and hardening cementitious material based on calcium aluminoferrite from all solid waste and its preparation method, comprising the following steps: S1. Mixing and stirring modified red mud, carbide slag, mineral powder, and modified mineralizer evenly, and then pressing into shape; S2. Performing a first-stage calcination, calcining from room temperature to 950-1000℃, and then performing a second-stage calcination to 1220-1300℃ and holding at that temperature for 30-120 minutes, and cooling to room temperature to obtain modified mineral phase clinker; S3. Passing through a 200-mesh square hole sieve, mixing with modified multi-element solid waste mineral materials in a mixer, and stirring evenly to obtain the rapid-setting and hardening cementitious material based on calcium aluminoferrite from all solid waste. This invention significantly reduces the calcination temperature of clinker through the synergistic effect of various raw materials, thereby greatly reducing energy consumption and carbon emissions. The complex ionic reaction mechanism and the complementary physicochemical properties of multi-component solid waste enrich the diversity of hydration products and the density of the gel structure, thus ultimately achieving the excellent performance of "fast setting, fast hardening, and high strength" of the all-solid waste cementitious material.

The invention provides a homocysteine detection kit and a preparation method thereof, and belongs to the field of in-vitro diagnostic reagents, the homocysteine detection kit provided by the invention comprises a first reagent, a second reagent, a third reagent and a calibrator, the first reagent is an AMPSO buffer solution containing TCEP, adenosine, an antioxidant, a macromolecular coagulant and a preservative; the second reagent is an HEPES buffer solution containing a recombinant S-adenosine-L-homocysteine hydrolase, an S-adenosine-L-homocysteine coupled bovine serum albumin compound, a protein substance, a carbohydrate substance, glycerol, a surfactant and a preservative; the third reagent is a latex particle preservation solution marked with a mouse anti-human SAH antibody; the calibrator is a plurality of homocysteine solutions or homocysteine dry powder with different concentration levels and the concentration of 0-100 [mu] mol / L. The kit provided by the invention has the advantages of convenience and simplicity in use and high stability.

The utility model discloses a pneumatic push rod formula agitator in sugar tank of sugar spraying machine relates to food processing equipment technical field, the utility model discloses a sugar tank body, the top of sugar tank body side is equipped with the fixed frame, the inboard of both sides of fixed frame is equipped with pneumatic push rod, the both sides of fixed frame are equipped with slide between, the telescopic axle of two pneumatic push rods is equipped with the moving block of slide cooperation with slide, the side of moving block is equipped with the stirring frame of being located in the sugar tank body and is rotated cooperation, be provided with connecting assembly between stirring frame and moving block. The utility model discloses the telescopic axle of pneumatic push rod drives moving block and moves along the slide repeatedly, and the rotation of rotating rod will be driven to the sliding of moving block to drive stirring frame and carry out the rotary motion, realizes all -round, high -efficient stirring of sugar liquid in sugar tank body, reduces the hidden danger that the iron filings and oil dirt drop in the sugar tank through the screw stirring.