470 results about "Experimental Devices" patented technology

The invention discloses a modular tunnel fire simulation experiment device, and relates to the technical field of experiment devices, an arc-shaped metal soft bent plate is matched with a hard plate body to arrange a simulation tunnel on a rotating table; the edges of the two sides of the soft bent plate are positioned on the hard plate body; the hard plate body is provided with a plurality of fixing positions of the soft bent plate, so that the form of the soft bent plate can be adjusted as required, and experimental tunnels in various forms can be simulated as required; the modularized tunnel fire simulation experiment device not only can simulate the gradient of the tunnel and different positions and different speeds of vehicles on fire in the tunnel, but also can achieve the technical effect that the shape and specification of the tunnel for experiment can be conveniently changed according to needs.

This invention discloses a fishway illumination-based fish-attracting experimental device, belonging to the field of fish-attracting experimental technology. It includes: an experimental water tank, positioned above a reservoir, divided into an upstream, midstream, and downstream section, with an adaptation zone in the downstream section; a support frame erected above the midstream section, covered with a black cloth; and an illumination mechanism located on the upper wall of the midstream section, comprising LED lights and connecting components. Through the structural design of the connecting components, this invention allows for multi-dimensional flexible adjustment of the LED lights' horizontal position, illumination angle, and vertical height, breaking the limitations of fixed illumination modes in traditional experimental devices. The position and angle of the illumination can be adjusted according to experimental needs, and the adjustment operation is simple and convenient. It enables multi-parameter illumination research, allowing for quantitative study of the impact of different illumination conditions on fish migration behavior, meeting the needs of different experimental scenarios, and providing support for personalized fish-attracting research.

The invention relates to the technical field of oil and gas field development, in particular to an ultra-deep gas well production string multi-mode leakage simulation experiment device and method. According to the technical scheme, the outer side of a shaft temperature and pressure coupling simulation system is connected with a reservoir gas supply simulation system, the middle of the shaft temperature and pressure coupling simulation system is provided with a multi-mode leakage simulation assembly, the lower end of a production oil pipe is connected with a reservoir-shaft coupling connector, and the upper portion of one side of a layered sand filling seepage tank of the reservoir gas supply simulation system is connected with a confining pressure loading unit through a pipeline; the lower portion of the layered sand filling seepage tank is connected with a reservoir fluid supply unit, and the outlet end of the layered sand filling seepage tank is connected with a reservoir-shaft coupling connector through a pipeline. The experimental device has the beneficial effects that the experimental device for coupling the reservoir and the shaft is constructed, and the multi-mode leakage simulation assembly is adopted to realize body perforation leakage simulation and screw thread sealing failure simulation, so that the simulation of the ultra-deep gas well under complex working conditions is realized, and a scientific basis and a technical support are provided for leakage prevention and control of a production string of the ultra-deep gas well.

The invention discloses an experimental device and method for positioning and artificially manufacturing fractures in a borehole and expanding the fractures. The experimental device comprises a tubular column carrier unit, and a positioning anchoring system, a mechanical fracture forming pretreatment system, a thermal shock fracturing system and a control terminal which are integrated on the tubular column carrier unit. The positioning anchoring system is used for detecting the well wall and locking the target depth and direction; the mechanical crack-making pretreatment system is used for cutting at the locking position to form an initial physical gap; the thermal shock fracturing system presets a thermal stress field through a heating assembly, and utilizes a cold shock assembly to spray low-temperature fluid to generate transient temperature difference stress to induce cracks to crack from notches and expand. And the control terminal controls the action time sequence of each system. According to the method, through the mode of mechanical drilling and thermal coupling, fixed-point and directional accurate fracture forming in a borehole is achieved, the generated fracture shape is close to that of a natural fracture, and the problems that a traditional method is inaccurate in positioning, uncontrollable in shape and large in damage to the whole sample are solved.

The invention discloses a rock dynamic pressure-torsion experimental device and method based on a Hopkinson pressure bar, and belongs to the technical field of rock mechanics dynamic testing. The device mainly comprises a split Hopkinson pressure bar system and a spiral conversion mechanism, wherein the spiral conversion mechanism consists of a spiral (4) and a screw sleeve (5) which are meshed with each other; the screw (4) is fixedly connected with the incident rod (2), the screw sleeve (5) is fixedly connected with one end of a cylindrical rock sample (6), and the other end of the sample is fixedly connected with the transmission rod (7). The core is that the lead angle of the screw pair is greater than the equivalent friction angle of the screw pair under the impact load, so that the screw pair is ensured to be non-self-locked; and the sample (6) is of a hollow thin-wall cylinder structure. The method comprises the following steps: driving the spiral (4) to advance by utilizing axial stress waves generated by the split Hopkinson pressure bar, and driving the hollow sample to rotate by the screw sleeve in a forced constraint state, so as to synchronously apply dynamic axial compression and torsional shear combined load.

The utility model relates to the field of simulation of pile foundation hydraulic erosion, in particular to a transparent soil experimental device for simulating pile foundation hydraulic erosion, which comprises an experimental box, a sealing gate is slidably connected to one side of the top end of the experimental box, and a storage tank is arranged inside the experimental box close to the right side of the sealing gate. A CCD camera and a laser generator are driven by a moving block to move, so that when the flow field form of the horizontal section is researched, the CCD camera is matched with the laser generator to shoot from top to bottom, and when a positioning rod is embedded into a second positioning hole under the action of a tension spring and rotates on the outer wall of a stud through a threaded cylinder, the CCD camera and the laser generator can shoot from top to bottom. In this way, the CCD camera and the laser generator are fixed to the front side of the experiment box, the CCD camera and the laser generator are made to be perpendicular to the front side of the experiment box, when the form of a vertical section flow field is researched, the CCD camera and the laser generator are used for capturing pictures of transparent debris flow, in conclusion, the positions of the CCD camera and the laser generator can be conveniently adjusted according to experiment requirements, and operation of experimenters is facilitated.

The utility model discloses an experimental device for anti-explosion protection of an arch dam, and belongs to the field of simulation explosion tests. The experimental device comprises a fixing mechanism, an explosive module, a displacement sensor module and an acceleration sensor module, wherein the fixing mechanism is used for supporting a high polymer plate; the explosive module is arranged above the high polymer plate and is used for carrying out an anti-explosion test on the high polymer plate; the displacement sensor module and the acceleration sensor module are fixedly mounted on the high polymer plate; the shock wave sensor modules are symmetrically arranged on the two sides of the high polymer plate. According to the experimental device, shock wave sensor modules are installed on the upper side and the lower side of a high polymer plate, an explosive module is installed above the high polymer plate, the explosive module is detonated through an exploder, shock waves on the explosion facing face and the explosion backing face of the high polymer plate are detected through the shock wave sensor modules on the two sides, and displacement data are tested through a displacement sensor module. Acceleration data are tested through the acceleration sensor module, so that comprehensive anti-explosion analysis is carried out on the high polymer plate, and the method is more comprehensive and fine.

This invention relates to the field of research on the operational characteristics of overpressure relief devices, and particularly to an experimental device for measuring the operational characteristics of overpressure relief devices under water hammer conditions. The device includes: a high-pressure air compressor, a frame, a piston accumulator, a quick-opening device, a high-pressure test assembly, and a high-frequency dynamic pressure sensor. This invention enables the measurement of operational characteristics under different pressure rise rate loads caused by water hammer phenomena on a test bench, providing an experimental platform for the research on the operational characteristics of overpressure relief devices under high pressure rise rates. The overall device is simple, quick, and stable. It effectively solves the problem of applying high pressure rise rate loads in current overpressure relief device operational characteristic measurement tests, overcomes the danger of using combustible gas explosions as pressure sources in existing operational characteristic measurement tests, and overcomes the shortcomings of existing test methods, such as long testing times, the need to calculate gas explosion pressure, and the difficulty in accurately controlling the pressure rise rate.

The application discloses an experimental device containing a uniform distribution gyro truss structure, which comprises a first connecting piece, a first rod, a rotor, a brushless motor, a motor connecting plate and a truss fixing plate. The first connecting piece and the second connecting piece are both assembled into the end face of the free end of the gyro truss structure through interference fit with the first rod, the second rod and the third rod. The four interface nodes of the first connecting piece and the second connecting piece are connected respectively. The third connecting piece and the fourth connecting piece are assembled into the gyro truss unit through interference fit with the first rod, the second rod and the third rod for multiple times. Each gyro truss unit is connected into the main body structure of the truss in the form of module. The brushless motor adds angular momentum to the truss structure. The vibration of the truss is suppressed through the uniform distribution gyro truss structure, which belongs to passive control. Compared with the PID control mode, the application has the advantages of quick reaction, low cost and fast effect.

The invention discloses a split Hopkinson pressure bar automatic experiment device based on a multi-axis manipulator and an inflatable plug, the split Hopkinson pressure bar automatic experiment device comprises a rack, a gas gun, a shaper, an incident bar, a transmission bar and a fastener, the multi-axis manipulator is arranged on the side of the gas gun, and a polishing piece, a negative pressure adsorption piece and a clamping piece are integrated at the tail end of the manipulator; an inflatable plug with an air bag is arranged, the plug is provided with an auxiliary air channel and a main air channel, the auxiliary air channel inflates the air bag to seal an outlet of the bore, and then compressed air is introduced into the main air channel to push the bullets back to a firing position; the device sequentially completes end face polishing, reshaper automatic pasting and bullet automatic resetting, full-process automation of experiment preparation and post-treatment is achieved, and manual tweezers pasting and long rod bullet retreating operation can be replaced.

The invention discloses a modularized multifunctional high-temperature material experiment device applied to a space station, and relates to the technical field of experiment devices, the modularized multifunctional high-temperature material experiment device comprises a cabinet body, a batch sample management module, a high-temperature heating module, an X-ray imaging module and an electric control module; a transverse transposition assembly, a longitudinal lifting assembly and an in-situ sensing assembly are arranged in the batch sample management module, a transfer chain of the transverse transposition assembly fixes a plurality of sample ampoules in a magnetic attraction mode, and the lifting end of the longitudinal lifting assembly is provided with a mechanical claw which is naturally closed and is opened when abutting against the limiting support; the in-situ sensing assembly monitors the state of the sample ampoule in real time; the high-temperature heating module is arranged at the lower end of the batch sample management module and consists of a plurality of furnace bodies which are independently driven and independently controlled in temperature, and heating channels of the furnace bodies can be communicated and coincide with the axes of the sample ampoules; the X-ray imaging module observes the melting and solidification process of the sample in real time, and the electric control module is in communication connection with all the modules. The system is diversified in function and high in system integration.

The utility model relates to the technical field of similar simulation experiment equipment, and discloses an experiment device for simulating mine earthquakes induced by movement of a water-containing weakly cemented rock stratum, which comprises a frame body, two movable plate bodies vertically arranged on the frame body and a pressing plate horizontally arranged on the frame body, the two movable plate bodies are in sliding fit with the frame body in the horizontal direction, and the pressing plate is arranged on the frame body. The two movable plate bodies, the pressing plate and a bottom plate of the frame body form a sample chamber for accommodating a rock sample, and the two groups of transverse pressure applying mechanisms are symmetrically arranged on the outer sides of the two movable plate bodies; each group of transverse pressure applying mechanism comprises a horizontal displacement assembly and a pressure applying end part connected to the horizontal displacement assembly, and the horizontal displacement assembly drives the pressure applying end part to move in the direction close to the movable plate body so as to apply pressure in the horizontal direction to the movable plate body. The dynamic pressure change condition of the weakly cemented rock stratum can be truly simulated, and the method has important significance for exploring the law and solving problems.

The invention discloses an experimental device for extracting exosomes, and belongs to the field of biological test equipment. The device comprises a centrifugal machine, a separation mechanism is installed in the centrifugal machine, the separation mechanism comprises a first cylinder, a second cylinder connected to the first cylinder and a third cylinder connected to the second cylinder, a primary sample is placed in the first cylinder, after primary centrifugation, the sample in the first cylinder enters the second cylinder, after secondary centrifugation, the sample in the second cylinder enters the third cylinder, and the sample in the third cylinder enters the third cylinder. The sample in the second cylinder enters the third cylinder; after the device is shut down, the centrifugal cylinder does not need to be replaced for multiple times, multiple centrifugal separation can be achieved only by transferring samples in the three cylinder bodies, and the operation efficiency is improved.

The application discloses a multifunctional rock dynamic and static loading experiment device and an experiment method, and belongs to the technical field of rock mechanics experiments. The device comprises a lower bearing, a rock heating assembly, a static load applying assembly, a magnetic field generating assembly and an acoustic emission detector. The lower bearing is provided with a dynamic load applying assembly and a controller. The rock heating assembly is used for heating a rock test piece. A pressure head in the static load applying assembly is located directly above the dynamic load applying assembly. The magnetic field generating assembly is used for providing a magnetic field environment for the rock test piece. The acoustic emission detector is used for detecting and analyzing acoustic signals emitted by the rock test piece. The rock heating assembly is used for simulating the influence of the ground temperature of the stratum where the rock test piece is located on the rock test piece. The magnetic field generating assembly is used for providing a magnetic field environment for the rock test piece, so as to simulate the influence of the surrounding magnetic field of the stratum where the rock test piece is located on the rock test piece. The influences of temperature and magnetic field on the rock test piece are comprehensively considered, and the obtained experimental results are more reliable.

The present application relates to the technical field of coal mining simulation experiment equipment, in particular to a mine coal mining working face support simulation experiment device, which comprises an experiment box made of transparent glass material, a plurality of support plates are supported by a plurality of hydraulic cylinders at the bottom of the experiment box, a rock mass collapse simulation mechanism is arranged above the support plates, the rock mass collapse simulation mechanism is used for simulating the pressure of the support plates when the rock mass above the coal mining roadway working face breaks and collapses, so as to adjust the support strength of the support plates in the coal mining roadway, a discharge control assembly is arranged in the experiment box, the discharge control assembly is used for discharging the rock blocks above the support plates in a controlled amount, which facilitates the pressure simulation experiment of the rock mass collapse simulation mechanism on the support plates, so that the support safety and stability of the support plates in the coal mining working face on the goaf can be simulated, and more accurate data support can be provided for the construction personnel when supporting the support plates in the coal mining working face.

The present application relates to the field of seismic physical simulation experiment, and discloses a kind of seismic physical simulation experiment device and method, and the seismic physical simulation experiment device includes the closed chamber for containing reservoir model and filling fluid, the ultrasonic detection device for detecting reservoir model, the fluid control system for controlling the pressure of fluid and the temperature control system for controlling the temperature of fluid, and reservoir model is immersed in fluid.The present application seismic physical simulation experiment device places reservoir model in the fluid in closed chamber, adjusts the fluid pressure in closed chamber using fluid control system, adjusts the fluid temperature in closed chamber using temperature control system, so that the environment temperature and pressure where reservoir model is located are consistent with the real reservoir to be simulated;The data of reservoir model are comprehensively collected by ultrasonic detection device, so that experimental data closer to the simulated real reservoir can be obtained.

This invention discloses an experimental apparatus and method for testing the stability of natural gas hydrate wellheads. The experimental apparatus includes a drilling platform motion simulation subsystem, a wellhead assembly subsystem, and a hydrate simulation subsystem. The wellhead assembly subsystem includes a simulated wellhead and a conduit connected to the simulated wellhead. The hydrate simulation subsystem includes a fixed sleeve filled from bottom to top with a layer of backing soil and a hydrate simulation layer, and a soil pressurization simulation mechanism mounted on the fixed sleeve. The conduit passes through the backing soil layer of the soil pressurization simulation mechanism. This allows the force exerted by the backing soil layer on the conduit to more closely resemble actual conditions, thereby improving simulation accuracy.

The invention belongs to the technical field of nuclear industry equipment maintenance, and particularly relates to a nuclear power reactor bottom simulation experiment device which comprises a pressure vessel wall, a plurality of replaceable flux tube assemblies, a plurality of fixed flux tubes and at least one supporting leg. At least one supporting leg is installed at the edge of the bottom end of the pressure vessel wall and used for supporting the pressure vessel wall. The replaceable flux pipe assemblies and the fixed flux pipes penetrate through the wall of the pressure container and are detachably installed on the wall of the pressure container. The top end of each replaceable flux tube assembly is provided with at least one quick release connector. The quick-release connector is used for being externally connected with machining equipment. The simulation experiment device for the reactor bottom of the nuclear power reactor is arranged for an experiment instead of being operated on a reactor site, so that the technical problems that the neutron flux measurement precision is seriously influenced and potential safety hazards of a unit are generated due to the fact that weld joints of existing neutron flux tubes are prone to deformation and cracking are solved.

The utility model relates to the technical field of testing of equipment erosion caused by annulus particles, and discloses an underground annulus particle erosion experiment device which comprises an annulus simulation bin, an experiment cavity is formed in the annulus simulation bin, experiment equipment is arranged in the experiment cavity, and a particle erosion arc groove is formed in the inner wall of the experiment cavity; the testing mechanisms are located at the upper end and the lower end of the annulus simulation bin, each testing mechanism comprises a bearing assembly, a pressing assembly and a rotating assembly, the bearing assemblies are located at the bottom of the annulus simulation bin, the pressing assemblies are located at the top of the annulus simulation bin, and the rotating assemblies are located in the pressing assemblies; through the arrangement of the testing mechanism, an underground annular particle erosion experiment can be simulated, the erosion effect of particles on equipment under different working conditions can be simulated through the erosion experiment, the erosion resistance and the service life of the equipment can be evaluated, a scientific basis is provided for design, material selection and maintenance of the equipment, and it is ensured that the equipment can safely and reliably operate underground.

The invention discloses an experimental device for gas leakage detection, belongs to the technical field of gas leakage detection, and aims to solve the problems that leakage detection is easy to occur when the gas leakage amount in a valve is small, and a leakage point is not easy to quickly position when the valve leaks. An upper supporting frame is correspondingly arranged above the lower supporting frame, fixing assemblies are arranged on the two sides of the lower supporting frame, the upper supporting frame and the lower supporting frame are connected through the fixing assemblies, a vacuumizing assembly is arranged on one side of the lower supporting frame, a clamping assembly is arranged in the lower supporting frame, and a valve is arranged on one side of the clamping assembly. According to the invention, tiny and low-frequency electric arcs can be conveniently captured, so that the problem of leak detection caused by small leakage amount is avoided, the detection precision is high, meanwhile, in the detection process, the electric arcs can directly point to leakage points, the leakage position of the valve can be conveniently and rapidly positioned, and the working efficiency is improved.

The application relates to the field of concrete mixing ratio experiments, in particular to a mixing ratio experiment device and method for ultra-high performance concrete, which comprises a round mold, a feeding cylinder, a limiting assembly, a baffle, a driving assembly, a mounting plate, a knocking hammer, a knocking assembly and a bottom plate. The limiting assembly is used for quickly locking the feeding cylinder and the round mold through cooperation of a pull rod, a spring, a rotating disc, a driving groove, a driving rod and a limiting block; the driving assembly is used for driving the baffle to be synchronously opened and closed through transmission of a knob, a first rotating rod, a cone wheel set and a threaded rod, so that mechanical scraping is realized; and the knocking assembly is used for realizing alternate knocking of the round mold through linkage of a rotating handle, a third rotating rod, a push block, a connecting rod and the knocking hammer. The application has the advantages of convenient assembly and disassembly, reliable sealing, accurate scraping, high efficiency and the like, effectively eliminates bubble interference and human errors, and improves the accuracy, reliability and operation efficiency of the slump experiment of the ultra-high performance concrete.

The invention discloses a contact network positioning wire clamp coupling experiment device and an experiment method, relates to the technical field of contact network testing, and solves the technical problem that the actual clamping state of a positioning wire clamp cannot be well simulated due to the fact that the performance research of an existing positioning wire clamp mostly focuses on static mechanical properties or corrosion behaviors in a single environment. The device comprises a positioning wire clamp; two contact line fixing bases are arranged on the positioning substrate, and the two ends of the contact line are connected with the two contact line fixing bases respectively; the lower end of the upper clamping rod is connected with the upper end of the positioning wire clamp, and the upper end of the upper clamping rod is connected with a fatigue testing machine; the upper end of the lower clamping rod is detachably connected with the positioning base plate, and the lower end of the lower clamping rod is connected with a fatigue testing machine; the horizontal load applying module is arranged on the positioning substrate and is connected with the positioning wire clamp; the device has the advantages of being capable of accurately simulating the actual mechanical state of the positioning wire clamp and the like.

The invention provides an experimental device and method for restoring groundwater pollution, and relates to the technical field of groundwater restoration. The experimental device comprises an experimental box body, a water supply pump and a sewage box body, a plurality of experiment cavities are formed in the experiment box body, each experiment cavity comprises a water inlet cavity, a repairing cavity and a collecting cavity, a bottom supporting plate is arranged in the repairing cavity, and the repairing filler is supported on the bottom supporting plate; a plurality of collecting cavities are formed in the outer wall of the experiment box body, a plurality of transverse partition plates are arranged in each collecting cavity, the transverse partition plates divide the collecting cavities into a plurality of water collecting cavities which are oppositely arranged up and down, each water collecting cavity is communicated with the repairing cavity through a communicating hole, a plurality of sampling pipes are further fixedly arranged on the outer wall of the experiment box body, and each sampling pipe is communicated with one water collecting cavity. The experimental device disclosed by the invention has the beneficial effects that by opening the sampling pipes with different heights, effluent water samples of different filler layer heights of the remediation cavity can be obtained, and the removal rate of pollutants in each filler layer can be accurately analyzed, so that the remediation performance difference of different filler layers at different depths can be accurately evaluated.

The invention discloses a safety experiment device for physics teaching, and particularly relates to the technical field of teaching equipment.The safety experiment device comprises a storage cylinder and a U-shaped frame located in the storage cylinder, a telescopic mechanism is arranged between the U-shaped frame and the storage cylinder, a rotating wheel is rotationally installed in the middle of the top of the U-shaped frame through a bearing, and a stud is fixedly arranged at the bottom of the rotating wheel; a lifting frame sleeves the peripheral surface of the stud in a threaded mode, an article processing mechanism is arranged at the end, away from the stud, of the lifting frame, a clamping mechanism is arranged at the position, corresponding to the article processing mechanism, of the bottom end face of the inner side of the U-shaped frame, an alcohol lamp is clamped to the clamping mechanism, and two connecting rods which are vertically arranged in parallel are fixedly connected to the top end face of the inner side of the U-shaped frame; and a fixed plate is fixedly arranged between the bottom end surfaces of the two connecting rods. According to the experimental device, experimental articles can be prevented from bursting after being heated, waste gas generated in the heating process is collected and treated, and the experimental device can be stored in the storage barrel for protection when not used.

The invention discloses an application method of a flexible device for an anti-seismic experiment of a linear structure across an earthquake fracture zone. The experimental device comprises a model box body connected to each bottom plate, a rolling support assembly connected between the two bottom plates and located above the bottom plates, a vertical connecting piece and a bottom connecting piece which are connected to the upper portion of the rolling support assembly, and a supporting unit connected to the vertical connecting piece and the bottom connecting piece and horizontally arranged. The supporting unit is arranged in the model box body and is vertically arranged; and a linear construction body penetrates through the two model box bodies. The supporting units are arranged between the layers of the model box body, so that simulation of a constraint mode of a viscoelastic boundary of a linear structure during an anti-seismic experiment is facilitated; the supporting units are horizontally arranged, and the rolling support assemblies are combined, so that the connection integrity and the flexible connection of the joints are guaranteed. Through determination of each parameter of a linear component, manufacturing of a model box body, acquisition and processing of monitoring data and other experimental methods, simulation of an anti-seismic experiment is performed more carefully and accurately.

The utility model relates to a creep direct shear drawing integrated experimental device based on temperature control, which is used for performing direct shear or drawing test on a sample, and comprises a cabinet body, a control box, a temperature control box, a horizontal loading unit, a vertical loading unit, a direct shear drawing unit, a bearing plate, a track and a horizontal gear lever, the rail is installed in the temperature control box, the bearing plate is installed on the rail, the direct shear drawing unit is installed on the bearing plate, the sample is installed in the direct shear drawing unit, the horizontal loading unit is connected with the control box and the direct shear drawing unit, and the vertical loading unit is installed on the cabinet body and makes contact with the sample. The horizontal blocking rod is installed on the cabinet body and connected with the direct shear drawing unit, the horizontal loading unit and the direct shear drawing unit are movably connected, only the direct shear drawing unit needs to be replaced, and the whole replacement process is simple and convenient.

1. Name of the product in this design: Experimental device for disassembly, assembly and maintenance of industrial robots. 2. Intended use of this design: for teaching, training, industrial robot operation and maintenance diagnostic skills, and other scenarios. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D rendering 1.

The utility model discloses an experimental device, which comprises a test piece box, a plurality of test cavities, a plurality of connecting rods, a plurality of connecting rods and a plurality of connecting rods, the salt solution box is provided with a salt storage box, a salt conveying pipe and a plurality of mixed liquid boxes, and the salt conveying pipe is used for conveying chlorate and sulfate to each mixed liquid box; a plurality of water pumps are arranged, and each test cavity is communicated with the corresponding mixed liquid box through the corresponding water pump; the temperature control device comprises a compression condenser and a heater, the compression condenser is used for refrigerating the test piece, and the heater is used for heating the test piece; and the control system is used for controlling the operation of each component. By arranging the multiple independent test cavities, the multiple independent mixed liquid boxes and the temperature control device, the test device has multiple test function modes, in addition, under different function modes, different temperature parameters can be controlled through the temperature control device, the actual road environment can be better simulated, and the accuracy of test results can be ensured to a great extent.

The utility model relates to an optical teaching experiment platform, which comprises a color experiment device, a light splitting experiment device, a lens imaging device and a refraction and reflection experiment device, wherein the color experiment device is used for carrying out experiment teaching of related knowledge of color synthesis of light, the light splitting experiment device is used for decomposing white light into light with different wavelengths through a light dispersion element, and the lens imaging device is used for carrying out experiment teaching of related knowledge of convex lens imaging. The refraction and reflection experiment device is used for carrying out experiment teaching of light reflection and refraction related knowledge. Compared with the prior art, the optical teaching aid systematically integrates basic optical knowledge, expanded optical knowledge and frontier optical knowledge related to middle schools, and can endow optical teaching with more intuitive principle display and more interesting operation experience.