463results about How to "Easy to test" patented technology

The invention relates to the technical field of transistor detection, in particular to a quick test method and system for an MOSFET device. The method comprises the following steps: acquiring and integrating multi-source parallel data of the MOSFET device to obtain real-time I-V characteristic data of the device; performing MOSFET device performance prediction based on the real-time device I-V characteristic data to obtain MOSFET device performance prediction data; screening according to the performance prediction data of the MOSFET device to obtain performance data of a primarily screened qualified device; performing adjustment based on the performance data of the preliminarily screened qualified device to obtain an MOSFET device test scheme; acquiring real-time test data of the MOSFET device, and screening qualified devices to obtain performance data of re-screened qualified devices; and performing device test summarization based on the performance data of the primarily screened qualified device and the performance data of the secondarily screened qualified device to obtain an MOSFET device test report. According to the invention, the test period can be shortened.

The invention provides a horizontal sliding bearing test bed, which belongs to the field of sliding bearing safety operation and detection and comprises a main transmission system, a driving system, a radial loading system, a heating system and a hydraulic system. A sliding bearing seat in the radial loading system is inversely fixed on a lower loading plate and is detachably sleeved and fixed on a test bearing, and a test bed applies pressure to the lower loading plate through a hydraulic cylinder to apply radial load to a test sliding bearing. A rotary swing hydraulic oil cylinder in the main transmission system provides power to test the horizontal sliding bearing. The hydraulic system is connected with the rotary swing hydraulic oil cylinder and the radial loading oil cylinder and can achieve closed-loop control over torque and radial loading force. The heating system simulates a high-temperature working condition through a heating box, and a test bearing can be set to be tested at a specific high temperature. According to the invention, large load detection can be realized, working condition simulation is accurate, data such as bearing working torque and service life can be detected, and comprehensive and multi-size adaptability is realized.

According to the large-scale real-time data link layer simulation method, a data link layer simulation system based on an FPGA (Field Programmable Gate Array) is composed of a wireless channel simulation module, a media access control module and a logic link control module; the wireless channel simulation module is used for carrying out modeling simulation on a physical channel transmitted in reality in an FPGA (Field Programmable Gate Array), and the channel distributes control signals to different nodes according to the control signals of the media access control module and transmits high-speed data transmitted by an upper-layer transmitting end back to the media access control module after passing through the simulated channel; the wireless channel simulation module has two functions of quantizing a channel model and quantizing an error rate model; in the quantization implementation of channel simulation, the quantization implementation of a channel model is completed, and the FPGA calculates the SNR in the transmission process through the sending frequency, the distance and the system transmission loss parameters transmitted by the upper layer; and randomly carrying out packet loss on the data according to the PER in quantization implementation of the error rate model so as to simulate real communication.

The invention discloses an E3 ubiquitin enzyme mutant as well as modification and a protein targeted degradation system and application thereof, and particularly relates to a series of targeted protein degradation enhanced E3 ubiquitin enzymes (Trim21-N) and a modification method thereof, the E3 ubiquitin enzymes (Trim21-N) are obtained by modifying a wild type Trim21 (wtTrim21) protein structural domain, and the E3 ubiquitin enzymes comprise Trim21-a, Trim21-b, Trim21-c, Trim21-d, Trim21-e and Trim21-f. The efficiency of degrading the target protein through the ubiquitin proteasome is remarkably improved, and the method has the characteristics of strong endogenous and exogenous universality, high specificity, ubiquitin proteasome dependence, low cytotoxicity, strong cell compatibility and the like on the degradation of the target protein. The invention provides E3 ubiquitin enzyme (Trim21-N) based on a targeted protein degradation enhancement version and an exogenous fluorescence report degradation system of the E3 ubiquitin enzyme (Trim21-N), preferably Trim21-e with the optimal degradation effect, and the E3 ubiquitin enzyme (Trim21-N) is named as delta Trim21. The invention further provides an endogenous protein degradation system based on the delta Trim21. The method has the characteristics of high specificity, rapidness and small module, so that the method can be used for researching various biological and disease mechanisms, including the fields of cell targeted therapy, cell mechanism exploration, genetic engineering and the like.

The embodiment of the invention provides a chip adjusting and testing device and method, and the device comprises a communication control module which is used for connecting a chip with a PC end operation platform; the PC end operation platform is provided with an automatic test module and is used for calling an automatic use case interface through an interface and editing automatic use case parameters so as to test a chip according to an automatic test case, and the PC end operation platform is also provided with a user-defined use case mode and is used for identifying a control keyword, calling a user-defined use case development sub-interface and developing the chip according to the user-defined use case development sub-interface. A user can edit the user-defined use case to generate a user-defined use case interface, so that the chip is subjected to a user-defined test according to the user-defined use case interface; and the instrument control module is used for calling a corresponding test instrument according to the test instrument type input by the PC end operation platform so as to detect the chip and generate test data. The problem that some temporary or sudden test requirements in the chip test process are difficult to meet is solved, and the effect of conveniently testing the chip according to the requirements of a user is achieved.

The invention discloses a multi-storage-location aging test device, and relates to the technical field of new energy battery pack testing. The multi-storage-location aging test device comprises a base, the top of the base is fixedly connected with a test mechanism, and the outer wall of the base is fixedly connected with a U-shaped bin. According to the multi-storage-location aging test device, the flowing assembly is matched with the moving assembly, a heater generates heat, a fan blows airflow to perform all-dimensional uniform temperature rise on a battery pack in the test bin through an airflow hole, an electric sliding block drives the heater and the fan to change the airflow direction through the arc-shaped design of a sliding rail, and multi-angle temperature rise is achieved; the device can place a plurality of battery packs into the test bin to be tested, the test efficiency is improved, meanwhile, the electromagnetic mechanism is used for heating the side face of the test bin, the heater is combined with heat conduction of the bottom of the test bin, comprehensive heating of the battery packs is achieved, and the reliability of the test result is ensured.

The invention relates to the technical field of slope model tests, in particular to a loading device and method for a locking type rock slope model test.The loading device comprises a base, a movable seat, a locking type rock slope model, a lever unit, a weight loading unit, a pressing plate and an adjusting assembly; starting a first lifting component to adjust a proper height; the weight is increased by the weight loading unit to drive the lever unit to rotate; according to the locking type rock slope model testing device, the pressing plate moves downwards, meanwhile, the rotating component is started, the angle of the pressing plate is adjusted, and a loading test is carried out, so that the pressure applying angle and height of the test can be adjusted, the use flexibility is high, the locking type rock slope model testing device is suitable for the loading requirements of locking type slope models of different sizes under various test working conditions, and the locking type rock slope model test can be carried out more conveniently.

The invention relates to a gas meter leakage detection device and a detection method thereof. The detection device comprises a vacuum box, a vacuumizing device, a gas charging device, a helium detection device, a gas infrared thermal imaging device, a control valve, a pressure sensor and a pipeline for connection. The detection method comprises omnibearing detection from large-scale leakage to tiny leakage, and the accuracy of the gas meter under different leakage degrees is ensured. Large-scale leakage is recognized through pre-vacuumizing and pressure maintaining testing, then low-pressure helium and high-pressure helium are used for filling, the actual working environment is simulated to detect medium-scale and small leakage, and therefore the detection result is more comprehensive and reliable. By means of the high permeability characteristic of helium, high-precision detection equipment and an automatic control system are combined, and it is ensured that each step in the detection process reaches extremely high precision. Meanwhile, the gas infrared thermal imaging technology and the image enhancement technology are adopted, the leakage process can be completely recorded, and accurate positioning of leakage points is achieved.

The invention belongs to the technical field of display screen detection, and particularly relates to display screen aging test equipment. Comprising an aging oven, through openings are formed in the two sides of the aging oven, a circulating track is arranged in the through openings in a penetrating mode, a circulating trolley is arranged in a track body of the circulating track, a positioning frame is installed at the top end of the circulating trolley, the positioning frame comprises a bearing part and clamping parts, and the clamping parts are installed at the two ends of the bearing part; according to the display screen aging test equipment provided by the invention, the circulating track is arranged; during testing, the display screen is mounted on the positioning frame, and then the circulating trolley drives the display screen on the positioning frame to enter the aging box through the through hole; after the test is completed, the circulating trolley carries the display screen out of the aging oven, and the display screen on the positioning frame is unloaded through the unloading assembly; the whole detection process is automatic, the test efficiency is high, and the test of mass products is facilitated.

The utility model provides a valve sealing performance detection device, which comprises a workbench, a first support plate and a second support plate, the first support plate and the second support plate are fixedly arranged on the top surface of the workbench at intervals, a first sealing block is fixedly arranged on one side, close to the second support plate, of the first support plate, and a second sealing block corresponding to the first sealing block is arranged on the second support plate. A power part used for driving the second sealing block to move in the direction close to the first sealing block is fixedly arranged on the side, away from the first supporting plate, of the second supporting plate, a bearing assembly used for bearing a valve is arranged at the position, between the first sealing block and the second sealing block, of the top of the workbench, and an exhaust hole is formed in the first sealing block. An inflation assembly used for providing high-pressure gas for the exhaust holes is fixedly arranged on the workbench. According to the utility model, the first sealing block, the second sealing block, the bearing assembly and the power part are arranged, so that the valve sealing device can adapt to valves with different diameters, and interfaces at two sides of the valve can be quickly sealed, thereby facilitating a worker to test the valve, and improving the working efficiency.

The invention provides a test device and method for evaluating chlorine resistance of a material. The test device comprises a water treatment unit; a chlorine dioxide generating unit; the storage tank is used for mixing the purified water and the chlorine dioxide therein to form a test solution; the test system comprises a water tank and a test unit, the test unit comprises at least one sample rack and a test device, the sample rack is used for fixing a test sample, and the test device is used for monitoring the performance of the test sample; the circulating system comprises a circulating pipeline and a circulating pump, the circulating pipeline is used for communicating the storage tank with the water tank to form a circulating path, and the circulating pump is used for enabling the test solution to circularly flow in the circulating path; and the wastewater treatment unit is communicated with the circulating pipeline and is used for reducing the test solution separated from the circulating pipeline and discharging the test solution out of the device. The test device is provided with the circulating system, so that various parameters of the test solution can be kept stable, and meanwhile, the operability, the safety and the environmental protection are obviously improved.

The invention provides a gasket sealing performance testing device and a testing method thereof, and solves the problems that an existing sealing gasket leakage testing device is complex in structure and difficult to quickly and accurately test the high-pressure sealing performance of an annular sealing gasket. According to the technical scheme, a lower pressing block arranged at the telescopic end of a hydraulic oil cylinder of a press workbench and a bearing disc clamp a sealing gasket to form a hollow cavity in the middle of the sealing gasket, and a communicating hole in the bottom of the bearing disc is connected with a standard volume gas tank and high-pressure gas pressurizing equipment through a main testing pipeline of a testing pipeline via a low-pressure pipeline and a high-pressure pipeline respectively. According to the testing method, the leaked gas amount and the gas leakage rate are calculated according to a measured value of the pressure sensor and the volume and pressure change relation of the Boyle law. Therefore, the device is simple in structure, convenient and rapid to test, outstanding in gasket sealing leakage test capability, capable of meeting corresponding test requirements, convenient for temperature environment adjustment and capable of improving the accuracy of test results.

The utility model relates to the technical field of film corrosion resistance testing, in particular to a scribing device for testing the corrosion resistance of a paint film. Comprising a platform, a fixing assembly, a scale track, a guide frame, a drawing tool and a dial indicator. The fixing assembly is mounted on the platform and is used for clamping and fixing a sample placed on the platform; the scale track is installed on the fixing assembly. The guide frame comprises a vertical guide rail and a horizontal beam, and the horizontal beam is installed on the vertical guide rail and ascends and descends along the vertical guide rail. The drawing tool and the dial indicator are installed on the horizontal beam. The bottom end of the drawing tool and the bottom end of the dial indicator are located on the same horizontal plane. The drawing tool is connected with the sliding block, and the sliding block is provided with a sliding groove corresponding to the scale track. The drawing tool slides along the scale track, and the length of the drawn line is determined through the scales of the scale track. Therefore, the test efficiency is improved, the scribing position is accurate, the scribing depth is accurate and consistent, and the final test result is ensured to be accurate.

The invention discloses a UV ink curing degree detection device, and relates to the technical field of UV ink detection.The UV ink curing degree detection device comprises a chassis and a detection assembly, a detection box is arranged above the chassis, and the detection assembly is arranged on one side of the interior of the detection box; the detection assembly comprises downward pressing rods, a base, buffer springs, a bottom plate, a rubber roller, a light supplementing lamp, a bottom frame, a scraping plate, a feeding opening, a rolling shaft, a guide plate, a collecting frame, a baffle and a weight meter, one side of the detection box is symmetrically connected with the downward pressing rods, one ends of the downward pressing rods are connected with the base, and one side of the base is symmetrically connected with the buffer springs. During use, the curing degree of UV printing ink can be detected and distinguished, and the position of the UV lamp is adjusted according to a detection result, so that the irradiation light intensity is adjusted, an irradiation area is cooled while detection is carried out, the temperature is prevented from being too high, materials can be stably clamped during detection, and detection misalignment caused by material deviation is avoided.

The invention discloses a transport package simulation test box and a use method, and relates to the technical field of simulation tests.The transport package simulation test box comprises a test mechanism and a pressure test block installed at the bottom of the test mechanism, a box body mechanism is arranged on the outer side of the test mechanism, moving wheels are arranged at the bottom of the box body mechanism, and the test mechanism comprises a test air cylinder; a clamping support is fixedly installed at the bottom of the testing air cylinder, a humidifying water tank is fixedly installed on one side of the top of the clamping support, a water tank plug is in threaded connection with one side of the top of the humidifying water tank, a plurality of connecting pipes are fixedly connected to one side of the bottom of the humidifying water tank, humidifiers are fixedly installed at the ends of the connecting pipes, and the water tank plug is in threaded connection with one side of the top of the clamping support. The product is placed in a specific temperature and humidity environment, the performance of the product under different temperature and humidity conditions and the integrity of the package are checked, the packaged product is pushed by the top to rapidly fall down and fall onto a rigid plane from different heights, and the bearing capacity of the product and the package to falling impact is evaluated.

The invention discloses a combined lubricating oil blending device, and relates to the field of lubricating oil blending, the combined lubricating oil blending device comprises a blending barrel and a bottom table, the bottom table is connected with an oil inlet pipe for conveying lubricating oil, and the oil inlet pipe is connected to an oil storage space formed in the bottom table and conveys the lubricating oil through a conveying assembly; a stirring assembly is connected into each blending box, supports are fixedly connected to the two sides of the bottom table, a feeding hopper is inserted into the tops of the supports, a plurality of layering plates are fixedly connected to the inner side wall of the blending barrel, and the layering plates are jointly connected with a circular truncated cone coaxially connected with the blending barrel; every two adjacent layering plates, the circular truncated cone and the side wall of the blending barrel form a blending space. The lubricating oil blending device has the advantages that lubricating oil with additives in different proportions can be blended at the same time, uniform mixing of the lubricating oil and the additives is achieved during blending at the same time, the lubricating oil blending effect under different proportion conditions can be analyzed, and the proportion can be adjusted conveniently.

The invention discloses a multichannel passive antenna array high-efficiency amplitude-phase test system, and relates to the technical field of amplitude-phase tests.According to the multichannel passive antenna array high-efficiency amplitude-phase test system, a robustness analysis and error modeling module is introduced, the influence of environmental disturbance factors on an antenna array is evaluated and compensated in real time, a global error model is constructed, static errors and time-varying errors can be effectively recognized, and the accuracy of amplitude-phase testing is improved. An error compensation strategy is dynamically adjusted, high precision can be kept in a dynamic environment, meanwhile, a deep learning auto-encoder is adopted to extract time-varying error features, a self-adaptive correction strategy is combined, real-time error compensation and dynamic adjustment are achieved, the system adjusts amplitude-phase data of each channel according to real-time feedback, and in various platform dynamic states, the real-time error compensation and dynamic adjustment are achieved. The test result is kept continuous and accurate, error compensation and correction can be automatically completed in the whole process through automatic error feature extraction, self-adaptive correction and a feedback mechanism, the requirement for human intervention is reduced, and a correction strategy is continuously optimized in the platform test process.

The invention relates to the field of semiconductor power device testing and sorting, in particular to semiconductor power device testing and sorting equipment based on visual inspection, which comprises an equipment box body, a feeding mechanism, a receiving mechanism and a testing mechanism, a protective cover is arranged on the front side of the upper end of the Z-axis upper installation frame, a warning lamp is fixedly installed on the side of the upper end of the Z-axis upper installation frame, a panel installation frame is fixedly installed on the side of the upper end face of the equipment box body, and a displayer is installed on the surface of the panel installation frame through a support. According to the full-automatic laser engraving machine, products are circularly transferred, steered and tested, defective products are classified and arranged, laser engraving is carried out, product appearance detection is carried out, and qualified products are automatically received, and the full-automatic laser engraving machine is of an integral turntable transfer structure, is circularly transferred, is high in speed, stable in operation and low in noise, does not need manual inspection, improves the product quality, and greatly reduces the labor cost and the customer complaint rate.

The invention relates to a rocket engine accessory, in particular to a turbopump isolation cavity heat exchange coefficient testing device and a thermal state analysis method, and aims to solve the problem that the thermal state of an internal structure of an existing turbopump isolation cavity is difficult to obtain through a test method. The device comprises a fuel cavity simulation piece, an isolation cavity simulation piece and an oxidant cavity simulation piece which are connected in sequence, the fuel cavity simulation part is a first annular cavity, the oxidant cavity simulation part is a third annular cavity, the isolation cavity simulation part is a circular truncated cone of which the large end is connected with one end of a second annular cavity, the small end of the circular truncated cone is connected with one end of the first annular cavity, and the other end of the second annular cavity is connected with one end of the third annular cavity; a first annular plate is arranged at the other end of the first annular cavity, and a third annular plate is arranged at the other end of the third annular cavity; isolation circular ring plates are arranged between the first circular ring cavity and the circular truncated cone and between the second circular ring cavity and the third circular ring cavity.

The invention discloses a precise weight calibrating device and a system thereof. The precise weight calibrating device comprises a base and a workbench, the workbench is mounted on the upper surface of the base; the fixing structure is mounted on the lower surface of the base, and the fixing structure is used for fixing; the supporting structure is installed on the upper surface of the workbench, and the supporting structure is used for supporting; the first adjusting structure is installed on the supporting structure, and the first adjusting structure is used for adjusting. The device relates to the field of weight verification, errors generated during operation of personnel or errors caused by data misreading can be prevented from severely affecting verification results, and the device is relatively simple in structure and convenient to use.

The present invention provides a method and system for testing the adaptability of an ICT system, and relates to the technical field of ICT testing, including: obtaining a plurality of test tools for testing an ICT system, and obtaining a tool standard table; then obtaining the best tool for each test item; then establishing an automated test model, and establishing an automated test method for the ICT system; finally, obtaining the test bias for each test item based on the test data, and adjusting the standard test results obtained by the automated test method based on the test bias; the present invention is used to solve the problems in the prior art of low efficiency in integrating the adaptability test method for the ICT system and comprehensive testing, as well as unstable test results during multiple tests, thereby affecting the overall evaluation of the ICT system.

The utility model discloses a multi-station testing device for an integrated circuit board, which comprises an operating platform, four testing grooves are formed in the bottom of an inner cavity of the operating platform, two sliding grooves are formed in two sides of the inner wall of each testing groove, a square groove is formed in the bottom of the front surface of the operating platform, and two hydraulic telescopic rods are arranged at the bottom of an inner cavity of the square groove at equal intervals. Connecting rods are arranged on the right sides of the output ends of the two hydraulic telescopic rods, and supporting plates are arranged at the output ends of the hydraulic telescopic rods and the tops of the connecting rods. When an integrated circuit board is subjected to a high-temperature environment test, the heating device is turned on through the control switch, external gas is sucked into the heating device through the air suction hopper, internal gas is heated by the three heating wires, and after the internal gas is heated into high-temperature gas, the high-temperature gas is pumped into the gas feeding pipe through the gas pump connected with the gas outlet pipe; and high-temperature gas is blown into the operation table through the gas inlet groove by the plurality of gas spraying hoppers, so that the integrated circuit board is tested in a high-temperature environment, and the diversity of equipment is improved.

The invention provides a phantom for evaluating functions of an additive manufacturing orthopedic insole and an automatic construction method thereof, and the method comprises the following steps: obtaining shape design parameters of the orthopedic insole based on a design model of the orthopedic insole; according to the shape design parameters, determining each component module of the most matched phantom to be selected; the selected supporting assembly and the selected correcting assembly are fixedly installed on the selected base so as to be assembled into an insole forming base; the selected insole forming piece is placed on the insole forming base, the insole forming piece is tightly attached to the upper surface of the insole forming base in a hot press forming mode, and the shape of the insole forming piece is re-carved; and demolding and taking down the insole forming piece after hot press forming to serve as the insole for testing. Through modular design, different adaptive modules are allowed to be replaced, so that the shape of the insole for testing is repeatedly modified and optimized, the testing process of the personalized orthopedic insole is simplified, and time and material cost are saved.

The invention relates to the technical field of fuel cell testing, and discloses a pressure distribution testing device and method for a bipolar plate of a fuel cell. The test assembly comprises a substrate and a plurality of pressure sensors; the bottom of the substrate is provided with test cavities used for being communicated with a bipolar plate runner to be tested, the top of the substrate is provided with step holes corresponding to the test cavities one by one, and the bottom surfaces of the step holes are provided with waterproof breathable films in an attached mode; the pressure sensor is arranged in the stepped hole; the test board is communicated with the gas inlet channel and is used for providing reaction gas for the bipolar plate to be tested; a data acquisition module; and the upper computer is used for summarizing the pressure data to obtain pressure distribution on the bipolar plate to be detected. The method has the beneficial effects that the flow field result of the bipolar plate does not need to be damaged, the accuracy of the test result is improved, in addition, the pressure distribution of the flow channel of the bipolar plate can be directly measured, and the test precision is relatively high.

The invention relates to the technical field of differential tests, in particular to a gearbox differential test device which comprises a test box, two load adjusting mechanisms, a pressure adjusting mechanism, a road surface switching mechanism and a differential mechanism clamped and mounted at the top of the pressure adjusting mechanism. The road surface switching mechanism comprises two six-surface overturning tables which are rotatably mounted on two sides in the test box, a connecting rod is fixedly mounted between the two six-surface overturning tables, six groups of rotating rollers are rotatably mounted in the six-surface overturning tables, and a road surface belt is mounted on the outer sides of the six groups of rotating rollers in a surrounding manner; an intermittent transmission mechanism is fixedly installed on one side of one six-face overturning table. Through the built-in road surface conversion mechanism, the change of different road surface adhesive force can be simulated, the influence of the road holding force of the vehicle can be truly reflected, the load adjusting mechanism is driven by the pressure adjusting mechanism, the test load weight can be accurately controlled, and the performance test of the torque force of the differential mechanism under different loads can be simulated.

The invention provides a true three-dimensional landslide model test device under a multi-factor coupling effect, the true three-dimensional landslide model test device comprises an assembly type model box and a support arranged on the outer side of the assembly type model box, a mechanical lifting system is arranged at the bottom of the assembly type model box, and the left side of the assembly type model box is connected with a flow velocity and water temperature control system through a pipeline; a rainfall and temperature control system is arranged on the support, a stress simulation system is arranged on the side edge of the assembly type model box, a deformation monitoring system is further arranged in the assembly type model box, and a true three-dimensional model arrangement system is arranged on the side edge of the assembly type model box. The rainfall system can effectively overcome the application limitation that accurate control cannot be achieved, the rainfall intensity, range, position and duration can be adjusted in real time, and simulation of various rainfall working conditions is achieved; by controlling the precipitation amount, the influence of the rainfall effect on the stability of the reservoir bank slope at different water levels can be studied.

The present invention discloses a pollution-proof isolation type disposable sputum suction tube and a method of using the same, and relates to the technical field of medical auxiliary equipment, including a sputum suction mechanism, a fixing mechanism is arranged at one end of the outer wall of the sputum suction mechanism, the sputum suction mechanism includes a protective tube, both sides of the inner wall of the protective tube are provided with a card slot, the inner surface wall of the protective tube is movably embedded with an isolation tube, and both sides of the outer wall of the isolation tube are provided with a card block. When the sleeve is pulled out of the patient's mouth, it will enter the isolation tube, and the outer wall of the sleeve is provided with a slide groove, and the slide groove will be engaged with the limit block of the inner surface wall of the isolation tube, so the sleeve will drive the isolation tube to slide in the protective tube during the upward sliding process, and when the protective tube slides upward, under the action of the connecting rod, it will drive the isolation cover to be closed, and when the sleeve completely enters the protective tube, the isolation cover will be completely closed, so that the mucus attached to the surface of the sleeve will not leak out, thereby preventing the mucus from dripping on the patient's body or bed, and further improving the sealing of the device.

The utility model relates to the field of touch screen detection, in particular to a pressure resistance detection device for a touch screen. The technical problems that according to a traditional device, the test pressure is inconvenient to adjust, tests under different pressures are inconvenient to carry out, a touch screen is inconvenient to clamp, and the test effect is poor are solved. A pressure resistance detection device for a touch screen comprises a bottom frame, a placing groove is formed in the bottom frame, a pressure sensor is fixedly connected to the bottom of the placing groove of the bottom frame, a displayer is fixedly connected to the bottom frame, and the displayer is connected with the pressure sensor through a circuit. A worker rotates the bolt, the bolt does not clamp the movable sleeve any more, the worker pulls the movable sleeve, when the needed gear moves to the position engaged with the first rack, the worker stops pulling the movable sleeve, the bolt rotates reversely, the bolt clamps the movable sleeve again, the test pressure can be adjusted conveniently, and tests of different pressures can be conducted conveniently.

The utility model discloses a hydraulic butterfly valve testing device, which relates to the technical field of butterfly valve testing, solves the problems of low positioning efficiency and poor testing effect of the existing device, and adopts the following scheme that four groups of supporting legs are fixedly mounted on the top surface of a base, and a detection box is fixedly mounted on the top surfaces of the supporting legs; according to the hydraulic butterfly valve testing device, the sliding block, the moving block, the air cylinder and the infrared sensor are arranged, the infrared sensor senses the center position of the butterfly valve, then the sliding block and the moving block move to drive the sealing cover to move to a proper position, the air cylinder drives the sealing cover to move downwards, and therefore the top end of the butterfly valve is sealed; meanwhile, through the arrangement of a pressurizer, a water tank, a pressurizing pipe and a water pipe, water is injected into the butterfly valve through the water pipe, pressure is applied to the interior of the butterfly valve through the pressurizing pipe, then whether water exists in a collecting hole or not is sensed through a water sensor, the test is simple and convenient, the precision is high, and the effect is good.