132results about How to "Convenient experiment" patented technology

The invention belongs to the technical field of bacterial culture, and discloses a high-throughput automatic monoclonal screening and picking workstation, which comprises a protective box for protection and isolation, and a workbench is arranged in the protective box; the plate stack module comprises a rotating plate stack arranged at the bottom end of the workbench, and a plurality of columns of culture dishes are arranged on the rotating plate stack in a lifting manner; the transfer module is arranged on the workbench and used for transferring culture dishes; the pipetting module comprises a pipetting assembly and a material storage assembly, and the pipetting assembly is used for transferring strains in the culture dish into the material storage assembly; the identification module is used for identifying and positioning the strains in the culture dish and then controlling the pipetting assembly to accurately transfer the strains. The device is simple in structure and flexible and convenient to use, high-throughput screening and picking of strains can be fully automatically carried out in a clean closed environment, manual intervention is not needed, the screening efficiency is high, strain pollution caused by manual intervention is avoided, the screening precision is high, the screening cost is reduced, and experiments are greatly facilitated.

The invention relates to the field of spring fatigue testing equipment, in particular to a switch spring fatigue fault degree testing device and method.The switch spring fatigue fault degree testing device comprises a spring fatigue testing device body, the spring fatigue testing device body comprises a bottom bin, and a servo motor is arranged in the bottom bin and installed in an installation base; the servo motor is installed on one side of the middle in the bottom bin, the top driving end of the servo motor is fixedly connected with a driving gear, one side of the driving gear is in meshed connection with a gear ring, the gear ring is fixedly connected to the lower portion of the periphery of a rotating sleeve, and the rotating sleeve is fixedly connected to the middle of the bottom end of a connecting disc. According to the invention, the top arc at the tail end of the sliding rod can drive the elastic plate to deform synchronously, so that the radian of the elastic plate can be changed, people can test fatigue data of the switch spring main body under different compression coefficients, and the test data can be more comprehensive.

The invention belongs to the technical field of cell biology, and particularly relates to a method for detecting cell stability, a cell sample is detected in three aspects of cell performance, cell mutation and cell stability, and when the cell proliferation effect is good, the cell does not migrate, and the cell activity is gt; the cell of which the cell concentration is 80%, the cell early-stage and late-stage apoptosis ratio is less than or equal to 10%, the cell autophagy ratio is less than 5%, no proto-oncogene is remarkably expressed, the cell aging ratio is less than or equal to 20% and the cell multiplication time is less than 48 hours is a stable cell; if one of the indexes does not reach the standard, it is determined that cell passage is unstable, and the cell culture process is stopped. The method provided by the invention can comprehensively judge the life cycle of the cell, so that the cell is applied to the optimal economic / efficient service life, the cell state can be effectively and accurately judged, and the method has good reliability.

The invention discloses an olfactory electroencephalogram signal recognition system and method. The system comprises an olfactory stimulation generation module, an electroencephalogram signal acquisition module, a near-infrared signal acquisition module, a synchronous control module and a data analysis processing module, the smell stimulation generation module is used for generating smell under the control of the synchronous control module in response to an input instruction of a user; an electroencephalogram signal acquisition module is used for acquiring an electroencephalogram signal of a user; acquiring a near-infrared signal of a user by using a near-infrared signal acquisition module; integrating the electroencephalogram signal and the near-infrared signal to obtain an olfactory electroencephalogram signal data set; and processing the olfactory electroencephalogram signal data set by using a data analysis processing module to obtain an olfactory electroencephalogram signal recognition result. The electroencephalogram signal and the near-infrared signal can be collected at the same time, fusion of multi-mode information is achieved, and the perception and cognition process of the brain to olfactory stimulation can be known more comprehensively.

The invention discloses an electric spark deep small hole machining process design method, which belongs to the technical field of aero-engine part case machining, and comprises the following steps: designing an ultrasonic device to assist chip removal through ultrasonic vibration in the electric spark machining process, and adjusting the power of the ultrasonic device, the position of an ultrasonic vibration source and the angle of the ultrasonic vibration source; under different ultrasonic influence factors, carrying out orthogonal test electric spark machining on the deep small hole, wherein the ultrasonic influence factors comprise ultrasonic power, the distance between an ultrasonic vibration source and a machining part and the ultrasonic direction; the machining quality of the electric spark deep small hole machining test is compared, and the optimal ultrasonic influence factor combination is obtained; and the ultrasonic device is adjusted according to the optimal ultrasonic influence factor combination, and the adjusted ultrasonic device is used as an auxiliary device for electric spark deep small hole machining. The method has the advantage that carbon deposition in the electric spark deep small hole machining process is reduced.

The invention discloses a series-parallel robot kinematics calibration method for working area optimization. The method comprises the following steps: analyzing a geometric error source influencing the tail end precision of the hybrid robot, and establishing a kinematic model containing error terms; a laser tracker is used for collecting the difference value between the real coordinates of the tail end point and the output coordinates of the error model in the reachable range of the hybrid robot to generate a residual function; according to the distribution of the measurement points in the working area in the maximum reachable range of the hybrid robot, weighting operation is carried out on the residual function, and an improved particle swarm algorithm fitness function is generated; using an improved particle swarm algorithm to iteratively identify geometric errors of the hybrid robot; the identified error is compensated to a controller, and kinematics calibration of the robot is completed; the kinematics calibration method provided by the invention is simple and efficient, and can be applied to most parallel and hybrid robots.

The invention provides a construction method and application of a human mitochondrial gene copy number library. The method comprises the following steps: selecting 10 nuclear reference genomes with stable copy numbers by utilizing the characteristic of stable copy numbers of nuclear genes, and carrying out probe design on the nuclear reference genes and mitochondrial whole genomes by adopting an imbricated probe design scheme based on a multi-factor algorithm, so as to design specific probes containing 1375 nuclear reference gene sequences and 498 mitochondrial gene sequences; and carrying out enzyme digestion random interruption, template amplification and target area capture, and forming a biotin-labeled mitochondrial gene copy number probe library by utilizing specific sequences of mitochondrial universal joints labeled by biotin of different samples. The method for detecting the mitochondrial gene copy number and constructing the variation library by utilizing a high-throughput technology is realized, so that the detection is quicker, more economical, simpler and more convenient, the popularization and the application are convenient, and the method is suitable for large-scale screening and preventive inspection of people with related diseases caused by mitochondrial copy number abnormality.

The utility model belongs to the technical field of medical instruments, and discloses an auxiliary fixing device for tail intravenous injection of rats and mice, which comprises a supporting component and a placing component, the supporting component is detachably connected with the placing component, and the supporting component is used for adjusting the angle and height of the top placing component. The placing assembly comprises a placing box, a head fixing plate and a tail fixing plate, the head fixing plate is slidably connected into the placing box, the placing box is provided with a clamping groove for clamping the tail fixing plate, the inlet end of the placing box is of a funnel-shaped structure, and the placing box is provided with an air hole and an opening for placing mouse claws. The angle and the height can be adjusted, operation of experimenters is facilitated, all components of the device are detachable, and cleaning and disinfection are facilitated; the fixing device solves the problems that an existing fixing device is inconvenient to load rats and mice, cannot adjust the angle and height and is not easy to disassemble, and is suitable for fixing the rats and the mice in experiments.

The invention relates to the technical field of falling ball impact. The invention discloses a falling ball impact detection device and a use method thereof, the falling ball impact detection device comprises a test bench, the test bench is provided with a test box, the test box is hollow, the bottom of the test box is fixedly connected with the bottom of a guide bench, and the guide bench is provided with a guide assembly. A guide assembly is arranged in the test box, a bearing assembly is arranged below the guide assembly and located in the test box, a recording device is arranged at the side end of the bearing assembly, a synchronous switching assembly is arranged at the side end of the recording device, a reset assembly is arranged at the side end of the synchronous switching assembly and located on the recording device, and the recording device comprises a linkage assembly and a display assembly. Through work of the bearing assembly and the recording device, data of multiple balls can be recorded in a unified mode, meanwhile, the balls after testing can roll in the preset direction, and the testing efficiency and convenience are greatly improved.

The utility model discloses a force measuring device which comprises a base, the base is connected with a sliding assembly, and the base is connected with a limiting assembly. An elastic assembly is arranged on the limiting assembly, a winding assembly is connected to the side wall of the base, and one end of the sliding assembly is connected with the winding assembly. When the device is used, a worker can use a screw to fix a winding cylinder, so that a weight block at one end of a rope is prevented from moving, the accuracy of data is further ensured, and meanwhile, an elastic component in the device can be replaced and detached according to actual conditions, so that the worker can conveniently carry out experiments aiming at different elastic forces; and by means of the adjusting assembly and the marking assembly, a worker can conveniently record related data, meanwhile, the oily pen is well installed, the measuring white board is more convenient to adjust, and therefore the device is convenient to use by the worker, and the practicability of the device is indirectly improved.

The utility model discloses an animal fixing device for experiments, relates to the technical field of medical experiments, and solves the problem that an animal cannot be turned over quickly and conveniently while being fixed by the conventional animal fixing device. The operation panel and the telescopic frame are arranged in the box body, one end of the operation panel is hinged to the box body through a pin shaft, the operation panel is provided with a protrusion, the box body is provided with a groove, the protrusion is matched with the groove, the operation panel is provided with a through groove, the telescopic frame is connected with the through groove in a sliding mode, and the telescopic frame is connected with the through groove in a sliding mode. According to the utility model, the experimental part of the experimental animal can be simply and quickly changed, the operation of personnel is convenient, and the efficiency can be improved.

This invention discloses a multi-level context compression method and system, belonging to the field of information processing technology. Before performing multi-level compression, the method first performs semantic pre-screening, using a lightweight embedding model to evaluate the information entropy and semantic importance of messages, achieving context-aware dynamic budget allocation. Then, it performs multi-level compression sequentially: the first level is content budget control, which enforces an upper limit on the aggregated content size of each message before lightweight compression; the second level is fragment compression, selectively removing historical content with feature gating; the third level is lightweight compression, performing lightweight content compression and supporting delayed boundary message processing; the fourth level is context folding, performing fine-grained selective compression based on the dialogue state graph, retaining key decision nodes; and the fifth level is complete summarization, performing a complete content summary when resource usage exceeds a threshold. This invention also introduces reinforcement learning optimization, dynamically adjusting the compression strategy based on task completion rate feedback. This invention achieves a strategy that prioritizes fine-grained compression over coarse-grained summarization, differential compression based on semantic importance, topological compression based on graph structures, and adaptive strategy optimization.

The utility model discloses a multifunctional chemical experiment table, and relates to the technical field of experiment equipment. The table comprises a table body, a hydraulic rod is mounted at the bottom of the table body, the table body is connected with the base through the hydraulic rod, a protective ring is adhered to the upper peripheral side wall of the table body, an experiment plate is mounted in the upper side wall of the table body in an embedded manner, an electric rod is mounted at the bottom of the experiment plate, and a ventilation net is embedded in the table body under the experiment plate; a drying assembly is further embedded in the front side wall of the table body, the drying assembly comprises a storage box and a draught fan connected with the storage box, and a placing piece is further installed in the storage box and comprises a corrugated plate and a supporting column connected to the corrugated plate in a threaded mode. According to the experiment table, the experiment plate capable of being lifted or lowered freely is utilized, so that the experiment table is more suitable for the operation requirements of experimenters, the experiment table can be lifted or lowered through the hydraulic rod to be suitable for experimenters of different heights, and hot air blowing and drying can be conducted on experiment equipment through the drying assembly.

The utility model relates to the technical field of optical experiments, and discloses an optical experiment device which comprises an optical experiment frame, a shading protection cover plate is arranged on the outer side of the optical experiment frame, a positioning supporting rod and a distance adjusting ruler are arranged on the optical experiment frame, and a plurality of clamping adjusting seats are arranged on the positioning supporting rod. According to the utility model, the plurality of clamping adjusting seats are assembled at the positioning support rod, and the center of the device corresponds to each other, so that the experiment effect is stable, the light of the ray light source can be subjected to a visual light source angle refraction experiment by matching the optical refraction experiment board with the light refraction body, and the experiment is relatively convenient; a plurality of optical experiment convex lenses can be conveniently installed, different optical experiment convex lenses can be rapidly replaced by adjusting the adjusting control disc body, the experiment convenience is high, the device achieves the angle refraction experiment capacity, different lenses can be conveniently replaced to display spectrums, and the experiment selection range is wide.

The utility model discloses a rat and mouse model feeding device, and belongs to the technical field of animal feeding devices. The device solves the problem of how to reduce the probability of biting experimenters by rats and mice when padding is frequently replaced in the prior art, and comprises a first bottom plate and a box body, a second bottom plate is hinged to one side of the first bottom plate, the box body is connected with the first bottom plate and the second bottom plate in a sliding mode, and idler wheels are connected to the first bottom plate in a rolling mode. The wheel faces of the wheels make contact with the inner surface of one side of the box body, the size of the wheels is matched with the size of the first bottom plate, clamping grooves matched with the wheels are formed in the two sides of the box body, the two ends of the wheels are rotationally connected with the clamping grooves, and rolling shafts of the wheels extend out of the clamping grooves and are connected with rotating mechanisms. A limiting mechanism used for limiting sliding of the box body is arranged on the first bottom plate. According to the utility model, the possibility that experimenters are bitten by rats and mice in the process of frequently replacing the padding is reduced, and the safety of experiments is effectively improved.

The invention provides a pathological immunohistochemistry wet box, comprising a box body, which is hollow inside and opened upward, a front side wall of the box body is provided with a plurality of connecting grooves, the plurality of connecting grooves are arranged at equal intervals in the left and right directions, the connecting grooves are opened upward, a plurality of supporting parts are provided on the inner side of the rear side wall of the box body, the supporting parts are arranged corresponding to the connecting grooves, and also comprises a glass slide, the front end of the glass slide is connected to the supporting part, the rear end of the glass slide passes through the connecting groove and extends to the outside of the box body, a pressing block is also provided on the connecting groove, the pressing block is adaptively arranged with the connecting groove, the left and right sides of the pressing block are respectively provided with protruding sliding blocks, the left and right side walls of the connecting groove are respectively provided with sliding grooves corresponding to the sliding blocks, the sliding blocks and the sliding grooves form a sliding fit in the up and down directions, and also comprises a cover body, the cover body is covered at the upper end opening of the box body, a plurality of groups of liquid adding holes are provided on the cover body, each group of liquid adding holes is respectively arranged corresponding to a glass slide, and a drainage port connected to the interior thereof is provided at the bottom of the box body.

The invention discloses a gas adsorption and thermodynamic intelligent sensing test system and method for different component materials, and belongs to the technical field of material adsorption and thermodynamic experiments, the system comprises a data set module, an experiment sensing module and an adsorption-desorption and thermodynamic coupling model unit, and the method comprises the following steps: S1, material element analysis; s2, constructing an adsorption-desorption and thermodynamic coupling model; s3, acquiring field experiment parameters; s4, obtaining an experiment result; s5, obtaining a data table, a data graph and data fitting in combination with an experiment result obtained in the step S4, and exporting data; according to the invention, the adsorption and desorption and thermodynamic experiment of the multi-component material can be completed, and an idea is provided for exploring the adsorption and desorption and thermodynamic experiment rule of the multi-component material.

The invention relates to the technical field of aging ovens, in particular to a mechanical clamping and distributing system for a patch aging and moisturizing box, which comprises a machine body, a motor is mounted at the bottom of an inner groove of an experiment cabin of the machine body, a stand column is mounted at the output end of the motor, outer convex plates are fixedly connected to the outer side and the top of the stand column, and a first sliding rod is fixedly connected between the two outer convex plates; the outer side of the first sliding rod is sleeved with and slidably connected with an outer ring, a first spring is fixedly connected between the top of the outer ring and the bottom of the upper outer protruding disc, and the outer arc wall of the outer ring is fixedly connected with a clamping rod. According to the mechanical cloth clamping system for the dough sheet aging and moisturizing box, the feeding port and the conveying belt are arranged, cloth is flatly placed into the feeding port and conveyed into the machine body, one side of the cloth falls into a through opening of a clamping rod, and then the cloth is rapidly and automatically clamped by a clamping plate, so that a cloth clamping experiment of the aging box is more convenient; meanwhile, cloth can be added and taken out in the running process of the aging oven, the internal environment of the aging oven cannot be damaged, and the use flexibility of the aging oven is improved.

A quantitative experiment research analysis method for a nerve stem action potential non-stress period phenomenon comprises the following steps: step 1, selecting a plurality of different double-pulse wave interval time values t as experiment conditions, and carrying out an experiment sub-step 1, an experiment sub-step 2 and an experiment sub-step 3 aiming at each wave interval time value t; step 2, superposing the neural stem AP waveform data obtained in the experimental sub-step 1 and the experimental sub-step 3, dividing the superposed neural stem AP waveform data by 2, and representing the neural stem AP waveform data AP1 induced by the first pulse electrical stimulation in the double-pulse electrical stimulation in the experimental sub-step 2 by using the result; and step 3, subtracting the neural stem AP waveform data AP1 induced by the first pulse electrical stimulation in the experiment sub-step 2 from the mixed waveform data APall obtained in the experiment sub-step 2. According to the method, the two neural stem AP waveforms AP1 and AP2 induced by the first pulse and the second pulse respectively can be obtained, and the critical value ranges of the absolute refractory period, the relative refractory period and the refractory phenomenon-free period can be accurately determined.

The utility model discloses a heating device for detecting high-temperature oxidation resistance of a stainless steel alloy plate, and relates to the technical field of alloy plates. The device comprises a heating plate, a limiting box, fixing plates and a gas transmission assembly, a vapor chamber is fixed to the top of the heating plate, the limiting box is arranged above the vapor chamber, the bottom of the limiting box is arranged in a penetrating mode, the fixing plates are fixed to the two sides of the limiting box, and supporting bolts are movably connected to the two corners, away from the limiting box, in the two fixing plates in a penetrating mode. A gas conveying assembly is fixed to the top in the limiting box in a penetrating mode and comprises a fixing pipe, and the fixing pipe is fixed to the top of the limiting box in a penetrating mode. Through the arrangement of the heating plate, the limiting box, the fixing plate and the gas transmission assembly, the problems that the detection temperature of the stainless steel alloy plate is not uniform enough when the stainless steel alloy plate is heated for high-temperature oxidation resistance, and experiments are inconvenient to control in different environments are solved.

The utility model belongs to the field of heavy truckles, and particularly relates to a heavy truckle walking testing machine which comprises a base, a mounting assembly is arranged at the top of the base and comprises two vertical plates fixedly connected to the top of the base, a PLC control device is fixedly connected to the outer side of one of the vertical plates, and the PLC control device is fixedly connected to the outer side of the other vertical plate. And sliding cylinders are slidably connected into the two vertical plates. A handle is rotated to drive a rotating disc to rotate, so that a first screw rod moves, sliding barrels are driven to move, the two sliding barrels are far away from an experiment wheel, a gear ring is driven to move, an insertion rod is separated from an insertion hole, a rotating ring is driven to be separated from an auxiliary groove at the same time, and the experiment wheel is separated. The experiment wheel can be supported by the stabilizing assembly, so that the experiment wheel can be replaced more conveniently, the time for replacing the experiment wheel is shortened, the working efficiency is improved, experiments of different road conditions can be conveniently carried out on the trundle through replacement of the experiment wheel, and the practicability of the device is improved.

An experimental device and method for simulating the spontaneous combustion and extinguishing process of coal in a closed fire area, wherein the experimental device includes a coal body simulation system, a fire monitoring system, a fire extinguishing simulation system and a sewage treatment system, wherein the fire monitoring system includes a chromatograph, a nitrogen source, an oxygen source, and a plurality of thermocouples and a plurality of gas intakes embedded in the coal body and distributed at different positions; the fire extinguishing simulation system includes a fire extinguishing agent source, which is used to provide a gaseous fire extinguishing agent and pass it into the coal body from the bottom of the experimental box, or to provide a solid fire extinguishing agent or a liquid fire extinguishing agent and pass it into the coal body from the top of the experimental box; the sewage treatment system includes a gas sewage treatment subsystem and a liquid sewage treatment subsystem to treat the gas overflowing from the coal body, and to treat the liquid flowing out of the coal body. The present invention is easy to use and operate, can simulate the entire process of spontaneous combustion and extinguishing of coal, and can truly reflect the inhibitory effect of different fire extinguishing materials on different coal bodies.

The utility model discloses a light experiment device for laboratory design, which belongs to the technical field of light experiments, and is characterized by comprising a square box, square grooves are formed in the front side and the right side of the square box, toughened glass is arranged on the inner walls of the square grooves, a connecting pipe is communicated with the left side of the square box, and the connecting pipe is communicated with the right side of the square box. The end, away from the square box, of the connecting pipe communicates with a humidifier, an annular groove is formed in the rear side of the square box, and an adjusting assembly is rotationally connected to the inner wall of the annular groove. The adjusting assembly comprises a limiting ring, and the problems that when an existing light experiment device conducts an experiment on light refraction, a prism is held by hand and then irradiated by a laser, so that the prism is inconvenient to rotate, the light refraction experiment efficiency is reduced, most light experiment devices are single in experiment function, and the experiment efficiency is poor are solved. And the practicability of the light experiment device is reduced.

The utility model discloses a lifting device for MOCVD (Metal Organic Chemical Vapor Deposition) equipment, which comprises a reaction chamber in which a graphite disc is arranged; the upper cover is arranged above the reaction chamber and is matched with the opening of the reaction chamber; the first lifting mechanism is connected with the graphite plate; the first lifting mechanism comprises a first motor which rotates in a first plane and provides lifting power; the first transmission assembly is respectively connected with the first motor and the graphite plate, and is used for converting the rotation of the first motor into axial movement in the direction vertical to the first plane and driving the graphite plate to lift so as to change the heating of the graphite plate; the second lifting mechanism is connected with the upper cover; the second lifting mechanism comprises a second motor which rotates in the first plane and provides lifting power; the second transmission assembly is connected with the second motor and the upper cover and converts rotation of the second motor into axial movement in the direction perpendicular to the first plane to drive the upper cover to ascend and descend. According to the utility model, a stable experimental environment is formed in the reaction chamber, so that the precision and the quality of the chip are ensured.

The invention belongs to the technical field of wave energy power generation models of modular floating bodies, and discloses a wave energy device experimental model for generating power by utilizing relative rotation of modular floating bodies and a use method. The device comprises a main floating body module, an auxiliary floating body module, a flexible hinge type connector, a forward extension type hinge, a gear box, a direct-current generator, an L-shaped limiting piece, an electric load box and a dynamometer. Compared with the conventional experimental device, the floating body structure is not changed or damaged, and the applicability and reusability are enhanced; a single-side spring structure is installed to buffer possible collision, and collision force can be measured through spring deformation; the external gear box is simple to assemble and disassemble and simple and convenient to operate; the transmission ratio and damping are adjustable, and the experiment is convenient; the power generation part is concentrated on the upper portion of the floating body, and multidirectional expansion of the floating body is not affected. A power generation device is integrated in a connection system, multi-gear mechanical damping regulation and control and real-time regulation and control and monitoring of resistor electric power are achieved through cooperative work of a resistor box, an electric load box and a dynamometer, and experiment convenience is optimized.

The invention provides an extraction-free rapid nucleic acid releasing agent and application thereof, and relates to the technical field of molecular biology, and the extraction-free rapid nucleic acid releasing agent comprises 10-100 mM of strong alkali, a surfactant with the mass-volume ratio of 0.1%-2%, 10-100 mM of a buffer solution, 0.1-2 mM of a metal ion chelating agent, 10-100 mM of a lysis enhancer and 50-100 mM of a PCR enhancer I. Cells or virus particles can be fully split, nucleic acid substances are released, and independent inactivation is not needed; the method has the advantages of strong cracking capability, short cracking time and simple steps, and can adapt to a rapid detection program.

The invention discloses a special-shaped nozzle with micro-thrust eccentricity, comprising a nozzle shell, a front protective layer, a nozzle throat liner, a rear protective layer and a nozzle tail cover; the front section of the inner cavity of the nozzle shell is sequentially bonded with the front protective layer and the nozzle throat liner, the rear section of the inner cavity of the nozzle shell is bonded with the rear protective layer, and the nozzle tail cover is threadedly connected to the rear end of the nozzle shell to limit the rear end of the rear protective layer; the front inner wall of the front protective layer is provided with a conical working surface that converges backwards, and the rear inner wall is provided with a concave arc working surface that expands backwards; the front section of the inner shape of the nozzle throat liner is a convex arc working surface that converges backwards, and the rear section is a convex arc working surface that expands backwards; the inner shape of the rear protective layer is a concave arc working surface that expands backwards; the front and rear ends of the nozzle throat liner are respectively connected with the concave arc working surface and the concave arc working surface of the front protective layer, and the inner cavity of the rear protective layer and the concave arc working surface at the rear end of the inner cavity of the front protective layer are spliced ​​into working surfaces with the same curvature. The special-shaped nozzle of the invention improves the reliability of the nozzle.

The utility model relates to the technical field of curtain wall fireproof performance experiments, in particular to curtain wall fireproof performance experiment equipment which comprises a combustion box. According to the utility model, when a curtain wall turn-over experiment needs to be carried out, the support bedplate jacks up the curtain wall clamping frame through the jacking work of the hydraulic jack, so that the bottom frame drives the clamping wheel to lift and separate from the track, and then the motor works to drive the belt pulley to rotate under the action of the belt, so that the hydraulic jack and the support bedplate are driven to rotate; the hydraulic jack drives the curtain wall clamping frame to move downwards and reset, the clamping wheel is matched with the track again, the turned curtain wall clamping frame can be pushed into the combustion box to be attached to the combustion box, and therefore the double-face fire spraying and heating experiment can be conducted on the curtain wall. In the process, a double-sided fireproof experiment can be carried out on the curtain wall without dismounting the curtain wall, so that the experiment process is simpler and more convenient, and the effect of improving the detection quality and efficiency is achieved.

The present invention discloses a line laser sensor for welding and an optimization method thereof, comprising: a power module, a laser generator, an imaging camera and a camera lens, a filter is detachably arranged at the end of the camera lens, and the filter is clamped and fixed by a clamping device; the filter is arranged in parallel with the camera lens; and the line laser sensor adopts a Sham structure line laser sensor. The present invention uses a Sham structure line laser sensor, takes the observation angle, imaging angle, object distance and imaging distance of the line laser sensor as optimization parameters, and optimizes the optimization parameters using a genetic algorithm, which can increase the depth of field of shooting and solve the problem that the camera receives projected laser stripes limited by the depth of field; at the same time, the length and width of the sensor are limited to reduce the volume of the sensor.