251results about How to "Convenient Arrangement" patented technology

The invention discloses a pallet protection corner automatic putting machine. The pallet protection corner automatic putting machine comprises a top protection corner putting combination machine and aside face protection corner putting combination machine; the top protection corner putting combination machine comprises a bottom circulation base and a pair of top protection corner single machines,the side face protection corner putting combination machine comprises a bottom fixed base and four side face protection corner single machines, the top face protection corner single machines are provided with electrical control parts, top protection corner containing grooves, limiting mechanisms, and top protection corner mounting claws, the top protection corner mounting claws grab protection corners in the top protection corner containing grooves, and put the protection corners on four edges of the top of a packaging box, each side face protection corner single machine comprises a second electrical control part, a side protection corner containing groove, and a side protection corner mounting claw, and the side protection corner mounting claws grab the protection corners in the side protection corner mounting grooves and put the protection corners on the four sides of the side face of the packaging box. The pallet protection corner automatic putting machine is reasonable in layout,smooth in operation, high in adaptation, automatic in full process, free of artificial duty and capable of greatly improving protection corner putting and threading packaging capacity.

The invention discloses an RISC-V vector optimization method, device and equipment based on thread scheduling, relates to the field of digital integrated circuit design, and is used for solving the problems of operation resource waste, relatively low operation efficiency and performance reduction caused by memory access performance limitation in the prior art. Comprising the following steps: acquiring an RISC-V vector instruction, extracting decoding information from the RISC-V vector instruction, and acquiring register configuration information in a vector state; determining thread scheduling information according to the decoding information, the register configuration information, the current thread execution state and hardware configuration; executing a corresponding thread task according to the thread scheduling information; after execution is finished, if the thread task of the current instruction is executed, updating the state and delivering the current instruction; otherwise, updating the state and executing the next thread task until all the thread tasks are executed, writing back the data, completing instruction delivery and ending the instruction cycle. According to the method, the vector instruction execution performance under memory access performance limitation can be effectively improved, and the overall operation performance is improved.

The invention relates to the technical field of equipment management, in particular to a medical beauty equipment cloud management system and management method. The method comprises the following steps: acquiring a medical beauty equipment number and medical beauty equipment parameters; carrying out cloud platform data uploading on the medical beauty equipment parameters based on the medical beauty equipment number, and generating medical beauty equipment monitoring data; consumable information digital registration is carried out on the medical beauty equipment monitoring data, and a beauty equipment consumable digital registry is generated; the method comprises the following steps: acquiring beauty equipment consumable data through a beauty equipment consumable digital registry to obtain beauty equipment consumable sensing data; consumable loss influence analysis is carried out on the beauty equipment consumable sensing data, and a consumable state monitoring data set is generated; and performing consumable service life prediction on the consumable state monitoring data set, thereby generating consumable service life early warning data. According to the invention, through real-time monitoring, intelligent analysis and dynamic adjustment of the cloud platform, the accuracy and comprehensiveness of cloud management of the medical beauty equipment are improved.

The invention relates to the technical field of terahertz, in particular to a terahertz sensor array design optimization method based on metasurface enhancement, which improves the performance of the terahertz sensor array in the aspects of sensitivity, resolution, frequency response and the like through multi-dimensional optimization design, obtains initial parameters of the array based on a physical model, and improves the accuracy of the design of the terahertz sensor array. By optimizing the structure and the arrangement mode of the metasurface unit and combining electromagnetic simulation analysis, the transmission efficiency and the phase regulation and control capability of terahertz waves are improved, the performance change of the sensor under high-temperature and high-stress conditions is evaluated through thermal effect and stress field simulation, the stability and the reliability of the sensor in a complex environment are ensured, and the application range of the sensor is widened. Based on laboratory testing, data of key performance indexes such as sensitivity, resolution and response time are fed back, design parameters are adjusted, and iterative optimization is completed; according to the invention, through combination of multi-dimensional simulation and experimental feedback, the performance and environmental adaptability of the terahertz sensor array are significantly improved, and the terahertz sensor array is suitable for wide terahertz detection application.

The invention provides a slit type bubble electrostatic spinning device assisted by hot air flow. The slit type bubble electrostatic spinning device comprises a hot air flow channel, a slit type metal solution channel, a bubble pipe and an electrostatic generator. The hot air flow channel and the slit type metal solution channel are circular truncated cone-shaped pipelines formed by gradually narrowing inner and outer pipes; the pipe diameter of an inner pipe of the hot air flow channel is the same as that of an outer pipe of the slit type metal solution channel; the slit type metal solution channel penetrates through the inner pipe of the hot air flow channel and is fixedly attached to the inner pipe of the hot air flow channel, the bubble pipe extends and is fixed to the inner pipe of the slit type metal solution channel, and the electrostatic generator is connected with the slit type metal solution guide pipe through a wire. The arrangement of polymer molecular chains in the solution is improved through the slit type metal solution channel, high-speed hot airflow is provided by the circular-truncated-cone-shaped hot airflow channel to upwards support bubbles from the periphery and assist the polymer molecular chains to be evenly distributed in parallel with the surfaces of the bubbles, and the enhanced nanofibers are prepared by improving the internal structure of the nanofibers.

The invention discloses a high-performance polyether-ether-ketone plate and a preparation method thereof, and belongs to the technical field of semiconductor manufacturing. The high-performance polyether-ether-ketone plate comprises the following components in parts by weight: 80-90 parts of polyether-ether-ketone, 1-3 parts of carbon nanotubes, 1-3 parts of graphene nanosheets, 2-5 parts of conductive tin oxide micro powder, 3-5 parts of polytetrafluoroethylene micro powder and 0.5-1 part of a silane coupling agent. The PEEK composite material provided by the invention has excellent mechanical, conductive, heat management, corrosion resistance and antistatic properties, and is suitable for severe environments such as high temperature, corrosion and fatigue resistance.

The invention relates to the technical field of power generation prediction data processing, and discloses a photovoltaic power station power generation prediction method based on multi-model fusion, which combines a photovoltaic physical model, a power generation statistical model and a power generation prediction model, not only considers a physical rule, but also combines statistical learning and machine learning to improve the stability and accuracy of prediction, and improves the prediction efficiency. And predicting the generating capacity of the photovoltaic power station by using environmental meteorological data, electrical parameters of the photovoltaic power station and historical power generation data. Accurate photovoltaic power generation power prediction is beneficial to better arrangement of power generation plans and resource scheduling of the power grid. The prediction precision and stability are improved through multi-model fusion, so that power grid dispatching is more accurate and efficient, and power grid instability factors caused by photovoltaic power generation fluctuation are reduced. Therefore, photovoltaic power generation can be connected to a power grid more stably, the power demand is met, and wide application and development of clean energy are promoted.

The invention belongs to the technical field of high polymer materials, and particularly discloses a cross-linked antistatic supercritical microcellular foaming material. Comprising the following raw materials in parts by weight: 80-100 parts of HIPS, 10-15 parts of thermoplastic elastomer, 5-10 parts of low-density polyethylene, 10-15 parts of organic multifunctional master batch, 5-10 parts of high-dispersion conductive functional filler, 5-10 parts of modified calcium sulfate whisker, 5-10 parts of grafted modified talcum powder master batch, 1-5 parts of cross-linking agent, 1-5 parts of lubricant and 1-5 parts of antioxidant. The invention provides a cross-linked antistatic supercritical microcellular foaming material as well as a preparation method and application thereof. The cross-linked antistatic HIPS supercritical microcellular foaming material which is excellent in comprehensive performance and can be applied to multiple fields is prepared.

The invention relates to the technical field of solar cells, in particular to a trans-perovskite solar cell and a preparation method thereof. The structure of the trans-perovskite solar cell sequentially comprises a conductive substrate layer, a hole transport layer, a lower interface passivation layer, a perovskite light absorption layer, an upper interface passivation layer, an electron transport layer, a buffer layer and a top electrode from bottom to top, wherein the material of the upper interface passivation layer is a DSA and PEAI double-interface material. According to the invention, DSA and PEAI are introduced into the upper interface of the trans-perovskite solar cell to passivate a plurality of different defects and improve the photoelectric conversion efficiency and stability of the perovskite solar cell.

The invention discloses a teaching practical training system and method based on the Internet of Things, and relates to the technical field of teaching management. According to the teaching practical training system and method based on the Internet of Things, the learning behavior data of the students are monitored in real time through the Internet of Things, the learning behavior characteristics of the students are extracted through clustering analysis, and the learning mode is recognized. And according to the learning mode of the student, behavior modes of other students are matched through a collaborative filtering algorithm, and a learning adaptability index is obtained, so that learning resources and task contents are dynamically adjusted. By comprehensively analyzing the learning mode and the adaptability index of the student, the learning progress and resource allocation of the student are coordinated, and the teaching task arrangement is optimized, so that the teaching efficiency and the learning experience of the student are improved. And based on the learning behavior data and the learning mode of the student, establishing an association relationship among the student, the learning resource and the task content through a graph construction algorithm, generating a knowledge graph between the student and the knowledge point, and realizing visual display of the learning state, progress and path.

The invention discloses foldable electronic equipment. The foldable electronic equipment comprises a hinge mechanism, a shell assembly, a flexible display screen and a flexible transmission piece, the hinge mechanism comprises a base frame assembly, a supporting assembly and a connecting rod component. The flexible display screen at least partially covers the shell assembly and the hinge mechanism. The flexible transmission piece penetrates through the hinge mechanism so that the two ends of the flexible transmission piece can be arranged on the two sides of the base frame assembly respectively. And when the hinge mechanism is in an unfolded state, the at least two groups of supporting assemblies and the at least two groups of connecting rod components are matched with the base frame assembly to form a supporting structure for supporting the flexible display screen. When the hinge mechanism is in a folded state, the other end of the first rotating piece and one end of the second rotating piece are arranged at intervals with the base frame assembly in the thickness direction of the base frame assembly, so that the at least two sets of supporting assemblies, the at least two sets of connecting rod components and the base frame assembly form a containing space, and the flexible display screen is bent in the containing space. The foldable electronic equipment has the advantages of being light and thin.

The utility model discloses an oil nozzle assembly production line which comprises a machining table, a linear carrying mechanism, an oil nozzle feeding vibration disc, a steel ball feeding mechanism, a spring feeding mechanism, a spring detection device, a riveting mechanism and a riveting detection device. The linear carrying mechanism is arranged on the machining table and comprises a lifting base, a feeding straight plate and a servo motor; the lifting base is fixedly installed on the machining table, a servo motor is arranged on the lifting base, and the servo motor drives the feeding straight plate to reciprocate in the length direction; seven stations are arranged on the feeding straight plate at equal intervals, the distance between the seven stations is consistent with the distance between the pneumatic clamping jaws, a discharging sorting mechanism is further arranged at the tail end of the feeding straight plate, and the servo motor drives the seven pneumatic clamping jaws on the feeding straight plate to carry workpieces on the previous station to the next station. The machined and detected workpieces are put into a discharging sorting mechanism; the production line can improve the assembly efficiency and reduce the assembly error rate.

The invention discloses a lead-free energy storage ceramic laminated material, and belongs to the technical field of dielectric energy storage. The lead-free energy storage ceramic laminated material is formed by sequentially laminating lead-free energy storage ceramic with a texture structure and lead-free energy storage ceramic with a non-texture structure, and preferably, the material comprises at least three layers; when the lead-free energy storage ceramic with the texture structure is positioned on the middle layer, the lead-free energy storage ceramic with the non-texture structure is positioned on the two sides of the middle layer; when the lead-free energy storage ceramic with the non-texture structure is located on the middle layer, the lead-free energy storage ceramic with the texture structure is located on the two sides of the middle layer. Based on the structural design of at least three layers, the non-textured ceramic is selected as the high-voltage-resistant layer, the textured ceramic is selected as the high-polarization layer, the lead-free ceramic laminated material with excellent energy storage performance is obtained, and the lead-free ceramic laminated material has wide application prospects in the fields of power electronics and pulse power.

The invention relates to the technical field of steel beam welding, in particular to an automatic steel box beam flange plate welding trolley device which comprises a walking trolley, a shear fork lifting table is arranged on the walking trolley, a mounting table is mounted at the top of the shear fork lifting table, and a flange plate containing frame used for containing a flange plate is arranged on the mounting table. The mounting table is further provided with a vacuum suction cup assembly used for grabbing a flange plate on the flange plate containing frame, the vacuum suction cup assembly is mounted on the mounting frame, the mounting frame is fixedly mounted at the working end of the mechanical arm, the side, located on the mounting table and away from the flange plate containing frame, of the mechanical arm is provided with a first sliding rail extending horizontally, and a sliding table is arranged on the first sliding rail. According to the technical scheme, a plurality of flange plates are placed through the flange plate placing frame, so that the flange plates can be moved with materials, and the manipulator is matched with the vacuum suction cup assembly and the welding robot to achieve mounting, positioning and automatic welding of the flange plates.

The invention relates to the technical field of capacitor electrode material preparation, in particular to a sulfur-doped nickel-manganese layered double hydroxide electrode material, a preparation method and a capacitor, and the preparation method comprises the following steps: growing sulfur-doped nickel-manganese layered double hydroxide on foamed nickel by using a simple and feasible one-step hydrothermal method; oxygen vacancies are introduced into the electrode material through a safe and harmless chemical reduction method; wherein the layered double hydroxide has a relatively large specific surface area and rich active sites, so that permeation of electrolyte and diffusion of ions are facilitated; through combination of sulfur doping and oxygen vacancy, the electronic structure of the electrode material can be synergistically optimized, and the electrolyte adsorption capacity and the electronic conductivity of the electrode material are enhanced. The problems that in the prior art, due to the fact that transition metal layered double hydroxides are low in electric conductivity and poor in electron transmission efficiency, actual energy density and power density are low, and cycling stability is poor are solved.

The invention relates to the technical field of textile materials, and particularly discloses high-strength screen cloth and a preparation method thereof. The high-strength screen cloth is prepared from the following raw materials: caprolactam, p-phenylenediamine, adipic acid, diphenyldicarboxylic acid, a modified monomer, zinc diethyl hypophosphite, divinyl benzene, modified glass fibers, an antioxidant and a lubricant. The preparation method comprises the following steps: preliminarily polymerizing caprolactam, p-phenylenediamine, adipic acid, biphenyldicarboxylic acid and the modified monomer, then adding the modified glass fiber, zinc diethyl hypophosphite and divinyl benzene for continuous reaction to obtain a polyamide copolymer, and finally performing melt spinning and weaving on the polyamide copolymer, the antioxidant and the lubricant to obtain the required high-strength mesh cloth. The high-strength screen cloth prepared by the invention has excellent mechanical properties and aging resistance, is suitable for being applied to the fields with high-performance requirements, such as constructional engineering materials and special protective equipment, and is high in practicability and wide in application prospect.

The invention relates to a device for quickly assembling and disassembling an upper anvil of a hydraulic forging machine and an operation method. The connecting rod is directly arranged on the upper anvil, so that a middle connecting part is omitted, and the cost is saved; the wedge pin is divided into the pin tenon and the movable wedge pin, the movable wedge pin is arranged in the connecting rod, the two parts are organically connected and matched during wedging and disengaging, a connecting component of the upper anvil and the upper anvil block can be wedged, the stroke of the wedge pin can be greatly reduced, and therefore the fast-assembling and fast-disassembling device is small in occupied space and convenient to arrange; and traditional hydraulic cylinder locking continuous energy consumption is changed into spring active locking without energy consumption. The method has the advantages that the upper anvil loading and unloading speed is higher, the equipment investment is smaller, and the energy consumption is lower.

The invention belongs to the technical field of lithium battery aluminum plastic films, and particularly relates to a high-thermal-conductivity and high-deep-drawing-performance aluminum plastic film, a preparation method thereof and a lithium ion battery, the high-thermal-conductivity and high-deep-drawing-performance aluminum plastic film comprises a nylon film layer, an adhesive layer, an aluminum foil layer and a CPP film layer which are sequentially laminated and compounded from outside to inside; wherein the adhesive layer is prepared from an A component polyurethane glue and a B component polyurethane glue; the component A is prepared from the following components in parts by mass: 20 to 35 parts of polyester polyol, 15 to 25 parts of polyether polyol, 5 to 10 parts of polyisocyanate monomer, 1 to 5 parts of silane coupling agent, 1 to 5 parts of graphene oxide and 40 to 60 parts of solvent; the component B comprises the following components in parts by mass: 95-99 parts of a polyisocyanate curing agent and 1-5 parts of a solvent; the CPP film layer sequentially comprises a corona layer, a supporting layer and a heat sealing layer from the aluminum foil layer to the outside, and each of the corona layer, the supporting layer and the heat sealing layer contains BN inorganic particles; the crystal nucleation rate of the CPP film is changed by adding the high-thermal-conductivity material boron nitride inorganic particles into the material of the CPP film, and excellent deep drawing performance is obtained by matching with the graphene oxide in the adhesive layer.

The utility model provides a power device and a plastic package mold. The power device comprises a substrate, wherein a graphical metal layer is arranged on the surface of one side of the substrate; the bottom of the metal boss is connected to the metal layer; the chip assembly is arranged on the substrate and is adjacent to the metal boss, and the chip assembly is electrically connected with the metal layer; the power terminal is electrically connected with the metal layer; and the plastic package body wraps the substrate, the chip assembly, part of the power terminals and part of the metal bosses, the plastic package body is provided with through holes corresponding to the metal bosses, and the through holes are exposed out of the tops of the metal bosses. According to the power device provided by the embodiment of the utility model, stray inductance can be effectively reduced, so that the current stability of the device is improved.

The invention relates to a high-energy-density lithium ion battery energy storage prefabricated cabin, and belongs to the technical field of new energy equipment, the prefabricated cabin is divided into a battery cabin and a control cabin by a partition plate, cabin doors are arranged on the battery cabin and the control cabin, and a battery management system BMS, a confluence power distribution cabinet and an uninterruptible power supply UPS are all integrated in the control cabin; a battery rack for dividing an inner cavity of the battery cabin into a plurality of spaces for placing the liquid-cooled battery modules is arranged in the battery cabin, and the liquid-cooled battery modules are arranged in the battery rack. Through the arrangement of the battery rack, the arrangement and layout of the liquid-cooled battery modules are optimized, the liquid-cooled battery modules are integrated as many as possible in a limited space, the energy storage capacity of the battery cabin is improved, and the volume energy density of the prefabricated cabin is further improved.

The invention discloses a coal-series solid waste ceramsite-based water surface crop planting device and method for a coal mining subsidence water area, and the device comprises a plurality of ceramsite floating beds which are formed by connecting a plurality of ceramsite floating plate units through connecting pieces and are fixed through vertical fixing piles which are arranged at intervals; planting holes used for containing planting pots are formed in the inner areas of the ceramsite floating plate units, substrate layers composed of soil and ceramsite of different particle sizes are arranged in the planting pots, and appropriate aquatic economic crops are planted in the substrate layers. According to the coal-series solid waste ceramsite-based water surface crop planting device and method for the coal mining subsidence water area, a new solution is provided for solving the ecological environment and agricultural production problems of the coal mining subsidence water area through comprehensive utilization of waste resources and an ecological restoration technology.

The present invention relates to the field of dangerous goods transportation supervision technology, and in particular to a waybill enhancement method based on trajectory data of dangerous goods transportation vehicles, the method comprising obtaining high-dimensional trajectory data of the transportation vehicle, time series trajectory data without missing values; identifying a valid stop point list of the transportation vehicle; performing behavioral feature analysis and duration analysis on the valid stop point list, correlating and comparing the classified stop information of the same transportation vehicle with the pre-filled waybill information, and generating an enhanced waybill based on the consistency between the classified stop information of the time series trajectory data and the pre-filled waybill information. The present invention significantly improves the monitoring and management capabilities of the dangerous goods transportation process by generating accurate and effective enhanced waybills, ensuring the timely identification and handling of abnormal situations, and the enhanced waybills also help to quickly trace the cause of the accident.

The invention discloses a virtual reality system, which comprises a visual lens and a positioning lens, and is characterized in that the visual lens sequentially comprises a first element group, a second element group, a third element group and a fourth element group from a first side far away from a screen to a second side close to the screen along a first optical axis, wherein the first side surface or the second side surface of the first lens is a plane; the second element group comprises a second lens with positive focal power; the third element group comprises a third lens with positive focal power; the positioning lens sequentially comprises a first lens with negative focal power, a second lens with negative focal power, a third lens with positive focal power, a fourth lens with focal power, a fifth lens with positive focal power and a sixth lens with negative focal power from the object side to the image side along a second optical axis; the seventh lens has positive focal power; and the eighth lens has positive focal power.

The invention belongs to the technical field of glass fiber surface treatment, and particularly relates to a glass fiber impregnating compound and a preparation method thereof. The glass fiber impregnating compound is prepared from the following components in percentage by mass: 2 to 5 weight percent of a coupling agent, 0.05 to 1 weight percent of a lubricating agent, 2 to 10 weight percent of a film-forming agent A, 7 to 15 weight percent of a film-forming agent B, 0.1 to 0.7 weight percent of a film-forming auxiliary agent, 0.5 to 5 weight percent of an interface dispersing agent, 0.5 to 6 weight percent of a wetting agent and the balance of water, wherein the coalescing agent is polyaspartic acid ester. The impregnating compound solves the problem of poor film forming uniformity when long glass fibers are infiltrated by the existing impregnating compound.

The invention provides an automatic test method and device. The method comprises the following steps: acquiring a test case generation request; generating task information according to the test case generation request; wherein the task information comprises task dependency information corresponding to each task, an interface document corresponding to each task and a test parameter extracted based on the test case generation request; according to the interface document corresponding to each task and a test parameter extracted based on the test case generation request, generating a calling function corresponding to each task; and according to the task dependency information corresponding to each task, arranging the corresponding call function, generating a call stream, and executing the call stream to obtain a test result. According to the method and the system, automatic testing is realized, the workload and the difficulty of manually writing interface automatic cases are greatly reduced, the flexibility, the customizability, the automation degree, the accuracy, the maintainability and the efficiency of testing are improved, meanwhile, problems are conveniently positioned and solved, and the quality and the effect of software testing are favorably improved.

The invention provides a TGV adapter plate, a manufacturing method and a chip, the TGV adapter plate comprises a glass substrate, and the glass substrate is provided with a plurality of through holes; the through hole penetrates in the thickness direction of the glass substrate, and the diameter of the upper end of the through hole is larger than that of the lower end of the through hole; the elastic layer is arranged on the inner wall of the through hole; the through hole is filled with the conductive layer, and the elastic layer is located between the conductive layer and the inner wall of the through hole. According to the TGV adapter plate, the conductive layer is prevented from being directly combined with the glass substrate through the elastic layer, stress is buffered through the elastic layer, the situation that the glass substrate is broken due to the fact that local stress of the through holes is too large can be avoided, the strength of the TGV adapter plate is enhanced, deformation of the adapter plate is avoided, the strength and durability of the TGV adapter plate are improved, and the service life of the adapter plate is prolonged.

The invention provides an earthwork backfilling amount monitoring method and system based on an unmanned aerial vehicle. The method comprises the steps that image information collected by a backfilling area shot by the unmanned aerial vehicle is acquired; generating a live-action three-dimensional model according to the image information; obtaining a contour line of a structure in the backfill area, and removing the structure in the live-action three-dimensional model according to the contour line of the structure; according to the target elevation of the plurality of grids in the live-action three-dimensional model, calculating the volume of earthwork to be backfilled in the backfilling area; calculating the accumulated backfilled earthwork volume of the backfilled area according to the current actual elevation of the plurality of grids in the real scene three-dimensional model; and according to the earth volume to be backfilled, the backfilled earth volume is accumulated, and earth volume backfilling work is monitored. According to the method, the precision and efficiency of earthwork volume backfilling work are improved, the dynamic monitoring and risk management capability is enhanced, it is ensured that a project is completed on time with high quality, and the scientificity and controllability of management are remarkably improved.

The invention relates to the technical field of power grid systems. The invention provides a power transmission and distribution line lightning protection equipment quality evaluation method, which comprises the following steps of: pre-defining and setting a unified standard for evaluating the performance of lightning protection equipment through a quality control system, and establishing a real-time monitoring system of the lightning protection equipment; historical data of the lightning protection equipment are collected, a historical data set is established, and a quality evaluation model is constructed through a quality control system; the real-time monitoring system collects related data of the lightning protection equipment to be evaluated and feeds back the related data to the quality control system to obtain a real-time data set; based on the real-time data set, performing quality evaluation on the to-be-evaluated lightning protection equipment through a quality evaluation model, and obtaining a quality evaluation result; and making corresponding operation and maintenance measures according to the quality evaluation result, and feeding back the quality evaluation result and the corresponding operation and maintenance measures to the user, thereby solving the problems of non-uniform evaluation standards, lack of real-time performance in the evaluation process, low evaluation efficiency, high error rate and low evaluation accuracy of the existing lightning protection equipment quality evaluation method.

A new structure panel lamp, including section frame, diffusion plate, bottom plate and light emitting lamp strip. The section frame is provided with the first table part and the second table part which are arranged at intervals; further including the cross-over clamp, the first end of the cross-over clamp is kept fixed by the joint action of the bottom plate and the second table part, the tail end of the cross-over clamp abuts against the diffusion plate and makes the diffusion plate and the first table part form fixed. The utility model can realize the internal space of the edge of the panel lamp, and realizes the planarization of the bottom plate, reduces its processing complexity.

The invention provides an optical connector device including a pair of connectors including a first connector and a second connector. The optical connector device is capable of allowing a position offset of an optical fiber in at least a plane direction orthogonal to an axial direction. Wherein the first connector comprises an inner shell and an outer shell; the inner housing holds the first optical fiber unit. The inner housing is held by the outer housing so as to be floatable in the axial direction and in a plane direction orthogonal to the axial direction. The inner shell is provided with a first abutting part. The connector housing has a second contact portion on a connection side of the first connector and the second connector. When the first connector and the second connector are connected, the first abutting part and the second abutting part are in surface contact, and the first optical fiber and the second optical fiber are arranged along the connection direction.