33 results about "Proof test" patented technology

The utility model belongs to the field of explosion-proof test boxes, and particularly relates to a test box for explosion-proof tests, which comprises a support, a first rotating seat is fixedly connected to the top of the support, a rotating frame is rotatably connected to one side of the first rotating seat, and a test box body is fixedly connected to the top of the rotating frame. A pretreatment mechanism is arranged at the top of the test box body, and a protection mechanism is arranged on one side of the test box body; the test box body and the protection mechanism are rotatably connected to the top of the support through cooperation of the rotating frame and the first rotating seat, the rotating frame can drive the protection mechanism to turn over, so that the box door of the test box body is far away from people, and test articles in the test box body fall into the processing box; then water in the water tank is pumped by a water pump, and cooling water is sprayed into the treatment box through a liquid collecting pipe and a spraying pipe, so that the test articles in the treatment box are further cooled.

The application discloses a kind of multi-stage linkage explosion venting test methods combined with powdery combustion inhibitor, it is related to explosion-proof engineering and safety detection technical field;The method is by constructing with explosion venting device, ignition system, powdery inhibitor delivery system and pressure and optical sensor test cabin, uses PLC to realize ignition, pre-delivery, pressure relief trigger, synchronous inhibition and afterflame inhibition and so on multi-stage linkage control;And through pressure, temperature and flame sensor real-time acquisition of multi-dimensional data of explosion process;By before ignition, ignition instant and in the process of pressure relief with different doses of powdery inhibitor, the explosion suppression performance under different linkage strategies can be systematically evaluated;The application can simultaneously obtain peak pressure, pressure rise rate, flame propagation speed and re-burning conditions and other multi-parameters, realize the quantitative evaluation of the explosion suppression efficiency of powdery combustion inhibitor under multi-stage linkage explosion venting conditions, with the advantages of good data integrity, strong repeatability and suitable for standardization explosion-proof test method construction.

The utility model relates to the technical field of toughened glass, in particular to a toughened glass explosion-proof testing mechanism which comprises a bottom plate capable of placing glass to be tested, a blocking and protecting mechanism capable of blocking glass fragments, a detection mechanism capable of detecting the glass and a plurality of positioning mechanisms. According to the utility model, the glass to be tested is placed on the bottom plate, then the ball body with a proper specification is selected, the U-shaped rod adjacent to the ball body is supported by the supporting rod, then a user manually moves the glass to adjust the impacted position of the glass according to the falling point indicated by the laser of the laser pen, so that the part, needing to be impacted, of the glass is located at the laser red point, and the supporting rod slides to pull out the glass. The ball naturally falls to impact the glass, the falling point of the ball is fixed, a user can manually adjust the position between the U-shaped rod and the adjacent rotating rod and then fix the U-shaped rod and the adjacent rotating rod through a bolt, the height of the ball is adjusted, and the falling point of the ball is adjusted; the error of impact force generated by falling of the steel ball every time is reduced, and the baffle and the cover plate can be used for protecting personnel.

The utility model belongs to the technical field of explosion-proof tests, and particularly relates to an explosion-proof test device for small-sized explosion-proof equipment, which comprises an explosion-proof tank, the outer wall of the explosion-proof tank is provided with a purging air inlet, an air distribution inlet, an air outlet I and an air outlet II, and the outer wall of the explosion-proof tank is fixedly connected with a push rod. An auxiliary test assembly is arranged in the explosion-proof tank, a pressure detector is fixedly mounted in the inner wall of the explosion-proof tank, and the auxiliary test assembly comprises a protective seat. According to the explosion-proof test device for the small-sized explosion-proof equipment, the reciprocating screw rod is driven to rotate by rotating the handle, and then the moving block is driven to move along the screw rod, so that the position of the spray head fixedly connected with the moving block can be flexibly adjusted, and the flexible adjustment capability can effectively reduce the blowing and gas distribution time and improve the test efficiency; more uniform gas distribution in the test process can be ensured, and the accuracy and the reliability of a test result can be improved.

The invention discloses a dust test device of a sealing element for an electric drive system, and relates to the technical field of electric drive system sealing, the dust test device comprises a base, the upper side of the base is fixedly connected with an oil chamber, the left side and the right side of the oil chamber are fixedly connected with supporting frames, and a cross beam is arranged between the two supporting frames; a sealing flange is arranged on the outer side of the supporting frame, a sealing piece body is arranged on the inner side of the sealing flange, a shaft to be tested is arranged on the inner side of the oil chamber, and one end of the shaft to be tested penetrates through the sealing piece body. According to the dust test device of the sealing element for the electric drive system, the oil chamber, the supporting frame, the sealing element main body, the shaft to be tested and the feeding pipe are arranged, so that sealing and dustproof tests can be carried out on the sealing element; meanwhile, by means of a feeding pipe, a funnel, a sliding block, a rear plate, an inclined plate I and an inclined plate II, the spiral conveying cylinder can swing and the funnel can be controlled to move up and down repeatedly during feeding, so that the entering dust is uniformly distributed, and the reduction of the dustproof test precision is avoided.

This application provides a sliding test device for performing sliding tests on a test object. The device comprises a support mechanism; a first fixing mechanism slidably connected to the support mechanism for fixing a first end of the test object; a winding shaft disposed on the support mechanism; during the sliding test, the middle portion of the test object is wound around the outer circumferential surface of the winding shaft; a second fixing mechanism for fixing a second end of the test object and capable of moving relative to the support mechanism; wherein the angle between the line connecting the first fixing mechanism and the winding shaft and the line connecting the second fixing mechanism and the winding shaft is greater than 0° and less than 180°; and a first driving member connected to the second fixing mechanism for driving the second fixing mechanism to move, thereby causing the test object to slide back and forth relative to the winding shaft during the sliding test. This test device can verify the reliability of the test object by repeatedly bending or sliding it.

The utility model belongs to the technical field of valve testing, and particularly relates to an explosion-proof testing system of a low-temperature valve, which comprises a testing room, a mounting pit is arranged on the ground of the testing room, a low-temperature tank, a ventilation system and a leakage rate detection system are arranged in the mounting pit, the low-temperature tank is connected with a liquid nitrogen filling system, and the ventilation system is connected with a liquid nitrogen outlet. A temperature detection system is arranged in the low-temperature tank, and a valve to be detected is placed in the low-temperature tank and communicated with the high-pressure gas conveying system. According to the utility model, through the low-temperature tank, the liquid nitrogen filling system, the temperature detection system and the high-pressure gas conveying system, remote testing of the low-temperature valve is realized, the testing efficiency of the low-temperature valve is greatly improved, the safety of testing personnel is ensured, and the environment of a testing site is detected and ventilated through the ventilation system and the leakage rate detection system; and the safety of testers in the valve dismounting and mounting process is ensured.

This application provides an automated flexible changeover control method for projection welding based on parameters of multiple parts, including: S1, selecting the parameter group corresponding to the current workpiece model on the human-machine interface of the central control system; S2, automatically loading welding parameter thresholds and control rules according to the selected parameter group, and sending them to the projection welding machine and robot controller via bus protocol; S3, starting the 3D vision system to collect the workpiece's pose information, calculating the path offset using the offset calculation formula based on the collected pose information, and correcting the robot's grasping path and projection welding station sequence in real time; S4, executing the projection welding production process and monitoring for anomalies in real time; S5, if an anomaly is detected in step S4, a partial pause signal is output, pausing only the abnormal station while keeping other stations open but not performing any actions; after manual confirmation and reset, a production cycle verification test is performed, and if the test is normal, normal production continues. This application can shorten changeover time and improve production continuity.

The invention relates to the technical field of down jacket fabric testing, and provides a down jacket fabric down-proof testing device and method.The down jacket fabric down-proof testing device comprises a shell and a plurality of detection units arranged on the shell in the circumferential direction, each detection unit comprises a down feather cavity and an air inflation cavity, and a testing opening is formed in the side, facing the exterior of the shell, of each down feather cavity; a positioning assembly is arranged in the testing opening, a matched net-shaped plate is arranged in the down feather cavity, a sealing piston is arranged in the air inflation cavity, and the testing device further comprises a driving assembly used for driving the sealing piston and the net-shaped plate to move in a reciprocating mode in the direction of the testing opening. The multiple detection units can synchronously test multiple down jacket fabric samples, so that the multiple down jacket fabric samples can be rapidly tested, force is applied to the inner side of the tested down jacket fabric to promote down to impact the fabric, no object is in contact with the outer side of the fabric, and the down is prevented from getting out of the fabric. And accurate and real feedback of the down drilling performance of the down jacket fabric is ensured.

The invention belongs to the technical field of explosion-proof electrical equipment detection, and relates to a method for improving gas uniformity of a 3.6 m explosion-proof test tank, which comprises the following steps: arranging a plurality of sampling points in the 3.6 m explosion-proof test tank to realize three-dimensional coverage of gas concentration distribution in the tank; gas guide pipes matched with the sampling points in number are laid on the inner wall of the 3.6 m explosion-proof test tank, all the sampling points are communicated to the outside of the 3.6 m explosion-proof test tank through the gas guide pipes, and control valves are installed at outlets of the external gas guide pipes to control gas circulation; two stirring fans are respectively mounted at the diagonal positions of the front end and the rear end in the tank body, convective circulation is formed, gas samples of all sampling points are guided out through the gas guide pipes, the concentration is monitored in real time by using measuring equipment, and after the stirring fans are started for stirring, the concentration difference value is controlled within + / -0.4%; layering verification is carried out on light or heavy gas, the layering phenomenon is eliminated through stirring of the stirring fan, the gas uniformity of the 3.6 m flame-proof test tank is improved, and the gas preparation time is shortened.

The utility model discloses a heating and ventilation pipeline interface leakage-proof test device, which comprises an operation table, a movable frame fixedly arranged on the left side of the lower part of the operation table, and a limiting mechanism arranged above the operation table, wherein the limiting mechanism comprises a placing frame, a pipeline body, a clamping plate, a limiting block, a moving block, a fixing shaft, a fixing plate, a rotating plate and a first electric telescopic rod, the placing frame is fixedly installed above the operation table, and the clamping plate is connected to the front side of the upper portion of the placing frame in a clamping mode. According to the leakage-proof testing equipment for the heating and ventilation pipeline connector, the position of a pipeline can be fixed through the limiting mechanism, so that the pipeline detection precision can be improved, meanwhile, the rapid drainage mechanism is arranged, water after testing can be rapidly drained out of the pipeline, the testing efficiency can be greatly improved, and in addition, the water recycling mechanism is arranged, so that the testing efficiency is improved. And the tested water can be recycled, so that the waste of water resources can be effectively avoided.

The utility model belongs to the technical field of explosive-proof test containers, and particularly relates to a novel explosive-proof test container which comprises a base, a transverse plate is arranged on the side wall of the base, an explosive-proof tank is arranged on the base, and a valve is arranged on the explosive-proof tank. According to the novel explosion-proof test container, a connecting block and a movable rod are pulled outwards, so that a circular plate abuts against the outer wall of a fixed plate, the connecting block moves outwards to drive a second connecting rod to move outwards along with the second connecting rod, and therefore position limitation of a trapezoidal rod to an auxiliary plate is relieved; an auxiliary plate is driven to elastically reset under the elastic reset effect of a third spring, so that an inserting rod is inserted into an inserting hole of a connecting plate, meanwhile, a movable rod moves to drive a first connecting rod to be clamped into a groove of a movable plate, at the moment, two sets of movable plates are driven to be clamped into a notch of the connecting plate, and therefore primary fixing of the sliding door is completed; and then bolts are screwed in along the threaded holes, so that the connecting blocks are fixed, and final fixing of the sliding door is completed.

The invention discloses a shock wave simulation method for a shield segment explosion-proof test. Precise control over peak pressure fluctuation and pulse width errors is achieved by combining a high-precision mass flowmeter and electromagnetic parameter regulation and control on the basis of a quantitative relation model constructed based on the fluid dynamics theory, meanwhile, an electromagnetic pre-compression and chemical detonation composite driving mode is adopted, shock waves with the rise time shortened and the peak pressure reaching 300 MPa or above are generated, and the shock waves can be applied to the field of hydraulic engineering. The steep front edge and high-frequency oscillation of real explosion are reproduced, the waveform limitation of single air pressure driving is broken through, a multi-field coupling monitoring system achieves full-time-history data capture of duct piece strain, displacement, temperature and the like through a high-frequency sensor and a high-speed camera system, weak parts are accurately recognized, meanwhile, the 1500-DEG C high-temperature simulation capacity is achieved, and the system is suitable for being used in the field of high-temperature simulation. The critical failure pressure is accurately determined in combination with a stepped pressure test, various extreme working condition requirements are met, nanosecond synchronization and safety redundancy design is achieved through an intelligent control system, the experiment efficiency is improved, and a high-fidelity and repeatable test platform is provided for research on the anti-knock performance of the shield segment.

The invention relates to the technical field of explosion-proof testing, in particular to an explosion-proof testing device for an explosion-proof electric roller under the continuous action of allowable resultant force, which comprises a testing mechanism, the testing mechanism is arranged in an explosion-proof testing groove, the explosion-proof electric roller is mounted on the testing mechanism, and the explosion-proof electric roller is coated with a conveying belt. The testing mechanism comprises two hydraulic supporting units which are symmetrically arranged, the two ends of the explosion-proof type electric roller are erected on the two hydraulic supporting units respectively, upward thrust applied to the explosion-proof type electric roller by the hydraulic supporting units is collected through the pressure testing device, and the conveying belt is fixed to the hydraulic supporting units. The tension testing device collects the tension applied to the conveying belt, and it is guaranteed that the allowable resultant force applied to the electric roller during testing reaches the testing standard. The ignition module is connected with the interior of the explosion-proof test groove, explosive gas mixtures in the explosion-proof electric roller are ignited through an electric signal spark plug, the electric roller can be restored to be used on site, and the test precision is high.

The invention discloses a high-speed railway signal system engineering verification test method for a new line lead-in hub. The method relates to the technical field of engineering test and verification of high-speed railway signal systems, and comprises the following steps: S1, building a simulation environment in a laboratory; s2, verifying the functions of the subsystems in the simulation environment and the functions of interfaces among the subsystems; s3, analyzing the train operation data through the comprehensive test subsystem to obtain a simulation result; and S4, determining the test content of the on-site bullet train according to the simulation result, presetting the priority of the test content, and carrying out testing in sequence to obtain a test result. Stable and reliable operation of a signal system after a new line is introduced into a hub can be ensured, and safe and efficient operation of a high-speed railway is ensured.

The invention discloses an explosion-proof test device for micro-miniature electrical equipment. The explosion-proof test device comprises an explosion-proof test tank, a sample clamp, an integrated joint and an adapter, the explosion-proof test tank is of a vertical cylindrical structure, a test bed is fixedly arranged in the explosion-proof test tank, and a controllable explosive gas environment is provided; the sample clamp is located in the tank, and the base is fixedly connected with the test bed and is used for clamping micro-miniature electrical equipment to be tested; the integrated joint is fixedly mounted on the sample clamp, integrates the gas distribution pipeline, the ignition device and the pressure sensor, and realizes gas replacement, ignition triggering and dynamic pressure monitoring; the adapter is fixed to the side wall of the tank body, one end of the adapter is connected with the gas distribution pipeline of the integrated connector, the other end of the adapter is connected with an external valve, and the built-in compression type metal wire mesh blocks explosion flames from spreading outwards. An observation window is formed in the side wall of the tank body and is opposite to the sample clamp, so that real-time monitoring is realized. The device is compact in structure, has integrated functions, is safe and reliable, and is suitable for explosion-proof performance tests of equipment such as miniature explosion-proof electromagnetic valves, microswitches, sensors and the like.

This application relates to a multifunctional explosion-proof test chamber and its control system, belonging to the field of explosion-proof test chambers. It includes an explosion-proof test chamber, an air supply temperature control mechanism, a sample explosion-proof protection mechanism, an explosion-proof safety mechanism, and a control system. The inner wall of the explosion-proof test chamber is welded with a reinforcing frame placed within an insulation layer, achieving separation between the explosion-proof structure and the test chamber's airflow space. The sample explosion-proof protection mechanism has a double-layer perforated structure, which can attenuate the explosive impact energy while ensuring the smooth flow of the circulating airflow and the temperature uniformity of the environment where the tested sample is located. The explosion-proof safety mechanism integrates pressure relief, fire extinguishing, door interlocking, and air intake / exhaust regulation functions. The control system achieves coordinated linkage between temperature control and explosion-proof protection, solving the problem of incompatibility between high explosion-proof protection and high-precision temperature control under large-volume conditions, thus improving the testing accuracy and operational safety of the explosion-proof test chamber.

This invention provides an anti-tampering testing system and method for in-vehicle T-Boxes. A data tampering simulation module can simulate tampered data and send it to the T-Box under test. A data storage security verification module can verify whether the T-Box under test will use a preset anti-tampering mechanism to process the tampered data, thereby confirming the anti-tampering test results of the T-Box under test. This system can comprehensively evaluate the anti-tampering detection capabilities of the T-Box under test, helping to discover potential security vulnerabilities, thereby helping to improve the problem of malicious data modification or destruction, and ultimately ensuring the safe operation of the vehicle and user privacy.

The invention belongs to the technical field of actuator explosion-proof testing, and particularly relates to a thrust actuator explosion-proof testing device and a thrust actuator explosion-proof testing method. The explosion-proof testing device comprises a carrier and an elastic stop mechanism installed on the carrier, and the surface of the carrier is provided with an installation area used for fixing the thrust actuator. During testing, the front end of the push rod of the thrust actuator is opposite to the elastic stop mechanism, and the elastic stop mechanism can apply elastic acting force to the push rod to prevent the push rod from advancing. The maximum thrust of a push rod of the thrust actuator is adjusted to rated working condition thrust in advance, the thrust actuator is fixed to a carrier and aligned with an elastic stop mechanism, the whole thrust actuator is arranged in an explosion-proof test tank filled with combustible gas, power is supplied to drive the push rod to stretch out and abut against the elastic stop mechanism, and under the synergistic effect of elastic resistance and an internal clutch mechanism of the actuator, the thrust actuator is driven to rotate. And the push rod forms axial wriggling, so that the thrust continuously fluctuates near a rated value, thereby accurately simulating a rated working condition in a limited space, and solving the problem that the limited test space and the real load are considered at the same time.

The invention provides a comprehensive performance verification test method and system of an energy storage rib, and relates to the field of building material and new energy product testing, the energy storage rib comprises a hollow fiber reinforced composite material rib and a built-in battery unit, and the verification test method comprises the following steps: S1, placing an energy storage rib test piece in a medium simulating a concrete alkaline environment; s2, synchronously applying a mechanical load and an electrochemical load to the energy storage rib test piece; s3, in the synchronous loading process in S2, mechanical response data, electrochemical response data and temperature data of the energy storage rib test piece are collected in real time; s4, evaluating the comprehensive performance of the energy storage rib under the coupling load based on the collected coupling data; a comprehensive testing means for the structure-energy storage integrated energy storage rib component is provided, and the internal failure mechanism of the energy storage rib component under multi-field coupling can be scientifically revealed; by quantifying the heat-force-electricity coupling effect, accurate data support and theoretical basis are provided for material selection and structure optimization of the energy storage rib.

The invention relates to the technical field of weather resistance detection, in particular to a polyurethane non-slip mat weather resistance detection device which comprises a weather resistance detector, and through arrangement of a rotating frame, a driving mechanism, a simulation mechanism and other structures, a polyurethane non-slip mat can be automatically turned over in the weather resistance detection process of the polyurethane non-slip mat, and the weather resistance of the polyurethane non-slip mat is detected. Then, the polyurethane non-slip mat is driven to move to the side of the roller, so that under the action that the driving motor drives the roller to rotate, a weather resistance test of the polyurethane non-slip mat in a real use environment can be automatically simulated under the condition that the box door is not opened, and meanwhile, the turned polyurethane non-slip mat is driven to rotate on the roller; the weather-proof test device is closer to real working conditions such as vehicle pivot steering and conveyor belt turning, so that a weather-proof test device which does not damage a climate field in the box and can continuously apply a walking load can really reflect the performance attenuation rule of the polyurethane non-slip mat in the service process, and a reliable basis is provided for formula optimization, service life prediction and quality authentication.

The present disclosure relates to a system for verifying crosshead travel speed in a material testing device. And the linear displacement device is arranged on a crosshead of the material testing device. A linear displacement device measures the position and displacement of the crosshead during the test. A timer interval counter measures a travel time of the crosshead during the test. This measurement allows for a precise calculation of the average speed at which the crosshead travels based on the difference in position values divided by the elapsed time.

The application discloses a pipeline hydraulic explosion-proof test device and relates to the technical field of pipeline hydraulic explosion-proof.The application comprises a test box, two sealing covers are fixed on the front face and the back face of a pipeline to be detected in the test box, a pressure relief device is arranged in the test box, the pressure relief device comprises a pressure relief box, a pressure relief tank, a limiting strip and a pressure relief block, the pressure relief tank is fixed on the side, away from the pipeline to be detected, of the sealing cover on the front face of the test box, the bottom surface of the pressure relief box is fixed on the top surface of the pressure relief tank, the limiting strip is fixed on the middle part of the inner wall of the pressure relief box, the pressure relief block is slidably arranged on the inner wall of the pressure relief box, and a pressure relief groove is formed in the upper part of the front face of the pressure relief box.The pressure relief box, the pressure relief tank, the limiting strip and the pressure relief block are matched through the arrangement of the pressure relief device, the purpose of balancing pressure is achieved when the pressure in the pipeline is too large, and the pipeline is prevented from exploding due to high pressure in the pressure test process, so that the safety of personnel is ensured.

This utility model belongs to the technical field of test chambers, and specifically relates to an explosion-proof test chamber with a mechanical self-locking pressure relief function. It includes: a pressure relief port, located on the top of the test chamber and sealed and fastened to a pressure relief plate; a hinge assembly, through which the pressure relief plate is rotatably connected to the top of the test chamber; and a mechanical locking assembly, through which the pressure relief plate is locked to the top of the test chamber; it also includes: a fixed base, pins, a torsion spring, a groove, a pressure roller, and a locking tongue; the fixed base is mounted on the pressure relief plate, and two pins are inserted at intervals on the fixed base, with the torsion spring sleeved on each pin, one end of which abuts against the pressure roller. This utility model, through the design of the mechanical locking assembly, enables the pressure relief plate to achieve autonomous pressure relief without the need for electric control, thus improving the reliability of pressure relief.

The utility model belongs to the field of dustproof test boxes, and particularly relates to a dustproof test box based on severe weather, which comprises a dustproof test box body, an inner cavity of the dustproof test box body is rotatably connected with a closing plate, and the inner cavity of the dustproof test box body is fixedly connected with a protective plate; through operation of the servo motor, the first rotating rod is smoothly driven to rotate, and the second rotating rod and the worm are driven to rotate through rotation of the first rotating rod, so that the first connecting block can be smoothly driven to reciprocate up and down through rotation of the worm; a second rotating rod can drive a placement frame to shake up and down through a cam, so that sand and stones on the surface of a protection plate and the surface of the placement frame are removed, and when a worker needs to maintain the interior of the dustproof test box body, the maintenance can be convenient, simple and efficient. And in addition, the efficiency of removing the gravel in the dustproof test box body is improved.

The utility model discloses weather-proof test equipment for coating production, which relates to the technical field of coating testing and comprises a test cylinder, the bottom end of the test cylinder is fixedly connected with a support plate, the top end of the support plate is rotatably connected with a support rod, and the top end of the support rod is fixedly connected with a mounting frame. The top end of the mounting frame is movably connected with a group of symmetrical guide cylinders, and the front ends of the guide cylinders are movably connected with movable cylinders. The control mechanism controls the synchronous wheel I and the guide cylinder to rotate under the action of the synchronous belt, so that the clamping plate is controlled to drive a sample to rotate, the clamping angle of the sample can be adjusted, the collection of the illumination tolerance of the sample at different angles is facilitated, the functionality of ultraviolet tolerance equipment is improved, and the working efficiency is improved. When the sample is in a horizontal state, the ultraviolet lamp can only carry out tolerance test on the surface of the sample, and when the sample is in a vertical state, tolerance test can be carried out on both sides of the sample.

The utility model relates to the technical field of battery testing, and discloses a battery shell explosion-proof testing structure which comprises a testing table, a tempered laminated glass cover is fixedly arranged on the top face of the testing table, a hydraulic cylinder is fixedly installed in the middle of the top face of the tempered laminated glass cover, and a testing mechanism is fixedly arranged at the output end of the hydraulic cylinder. A dry powder barrel is fixedly installed on one side of the top face of the tempered laminated glass cover, a powder outlet pipe is fixedly arranged on the bottom face of the dry powder barrel, and a powder spraying mechanism is fixedly installed on one side of the outer surface of the tempered laminated glass cover. According to the anti-explosion test structure for the battery shell, through the arrangement of the powder spraying mechanism, when an anti-explosion test is carried out, when a battery explodes, a valve is opened, a powder outlet pipe discharges dry powder in a dry powder barrel, then an air pump is started, compressed air is conveyed to the powder outlet pipe through an air conveying pipe, the dry powder is sprayed into a tempered laminated glass cover, and the battery is rapidly extinguished; the fire behavior is timely controlled to avoid accidents.

The present application relates to a kind of for simulating down jacket use environment's anti-mite test equipment, belong to anti-mite performance detection technical field.The anti-mite test equipment includes test table and positioning assembly, and the test table top wall is fixed with the enclosing component, the enclosing component includes the enclosing wall with gap, heat conducting layer, baffle, bottom door in the gap of enclosing wall and lifting device, the baffle top end is equipped with heating assembly, and the test table is equipped with cooling assembly and with the gap corresponding capture box.The present application forms heat energy isolation zone by heating assembly and the heat conducting layer of enclosing component, the activity range of mite is limited, when collecting mite, heating assembly is driven to move down by lifting device and cooling assembly is closed, the heat of the lower part of enclosing component is increased from both sides to middle, and mite is captured using the habit of mite and the rational distribution of heat.

This invention discloses a tailings dam discharge verification and testing system and method, including a test assembly structure and a stirring structure installed on the discharge side. The test assembly structure includes a first stacked test tank, multiple second stacked test tanks, and a telescopic support frame. Through the cooperation of path sliders and path chutes, and the linkage of pneumatic telescopic components and elastic traction structures, the test tanks can freely switch between a stacked storage state and a vertical testing state. The first stacked test tank is equipped with an eccentric orifice plate and a transparent glass test cup linked to a first gearbox, which can realize intermittent slurry feeding and staged stacking sediment column test observation. The stirring structure is rigidly connected to the first gearbox through the second gearbox, and a single drive motor realizes the synchronous power supply for tailings slurry preparation and discharge testing. This system has a small space occupation, is easy to transport, significantly shortens the test preparation cycle, can simulate the actual staged stacking process of tailings slurry in engineering, and provides multiple types of test data.