40results about How to "Reduce experimental error" patented technology

The utility model discloses a water quality standard solution titration device, including first container, liquid passage, solution container, water pump, control valve, flowmeter and colority detection subassembly, liquid passage is provided with two at least, and the one end of each titration tube is inserted to the above of first container, the liquid in solution container is made to flow into the liquid passage with the one end of each liquid passage away from titration tube intercommunication, water pump is communicated with liquid passage, and the liquid in solution container is dripped into first container under the drive of water pump through liquid passage and titration tube, control valve is arranged on titration tube, and colority detection subassembly is arranged above first container, water pump can drive solution to drip into first container through liquid passage and titration tube, replaces manual solution and drips into first container, realizes the automation, reduces the experimental error because of manual multiple comparison color, simplifies the operation procedure, and reduces the manual cost.

The application discloses a vehicle aerodynamic simulation model correction method and device, electronic equipment and medium, and relates to the technical field of vehicle simulation. Wherein, by establishing the mapping relationship between the actual flow field and the simulation flow field and calculating the difference data set, then using the physical field inversion algorithm to obtain the target correction factor distribution of the to-be-corrected parameter in space, and combining the flow state characteristic quantity to train the machine learning model to obtain the target correction function, finally embedding the function into the solver to realize the bottom correction of the vehicle aerodynamic simulation model. In this way, the problem of inaccurate vehicle simulation of the vehicle aerodynamic simulation model is fundamentally improved, the corrected simulation model has spatial adaptive ability, can automatically apply differential correction according to local flow characteristics, significantly reduces the error between simulation and test, avoids the problems of product performance not meeting the standard, design change and cost waste caused by simulation deviation, and greatly improves the accuracy and robustness of simulation.

The invention discloses a pressure-controllable clamping and dipping device and method for rock sample cementing treatment, and belongs to the technical field of rock sample tests. The device consists of a radial centering pressurizing module, an independent heating container and a hydraulic control system, the independent heating container and a saucepan with a built-in thermometer are fixed on a base, and a heating wire is arranged at the bottom of the base. An annular hydraulic oil groove is integrated in the base and connected with an internal pushing rod through multiple sets of hydraulic oil pipes, a sample contact plate is installed at the tail end of the pushing rod, and a supporting block is arranged on the outer side for positioning. The radial centering and pressurizing module is erected above the circumferential centering and pressurizing module; and an internal pushing rod is connected with the pressure transmission plate and the sample contact plate. A manual hydraulic pump is connected with an oil pump pressurization connector through a quick connector, a hydraulic oil pipe is provided with a high-precision pressure gauge and a control valve, a separator is laid in a sample contact area, and all the components cooperate to achieve cementing treatment of a rock sample at constant temperature and constant pressure.

The utility model provides a kind of spotting positioning device for cell culture multi-well plate, the spotting positioning device includes the lower layer bottom plate and upper layer spotting positioning rectangular frame of parallel arrangement;The lower layer bottom plate is also equipped with and is used for supporting the support column of spotting positioning rectangular frame;The top surface of the lower layer bottom plate is formed with the multi-well plate limiting slot for placing multi-well plate;The upper layer spotting positioning rectangular frame is formed with rectangular work window;The spotting positioning device further includes replaceable spotting positioning strip, the spotting positioning strip is formed with several array spotting holes, the spotting positioning strip is erected on the upper layer spotting positioning rectangular frame so that spotting hole is located in rectangular work window;Positioning scale for identifying or assisting positioning spotting positioning strip position is equipped on the upper layer spotting positioning rectangular frame.The spotting positioning device of the application is simple and easy to operate, low in cost, and has high parallelism between multiple holes, suitable for general laboratory applications that do not require excessive samples and have low budgets.

The application discloses a novel CO2 displacement and throughput system and method. The system can carry out simulation researches on carbonized water displacement, gas injection, water-gas alternating injection displacement, CO2 throughput and the like of oil and gas reservoirs. Under the conditions of formation temperature and pressure, the displacement or throughput development effects of various gases and the like on the underground oil and gas reservoirs are researched, and the effects of the displacement or throughput development of the gases, steam or carbonized water and the like under different conditions, and the influence law of the sensitive factors such as displacement amount, displacement rate, temperature and pressure on the displacement development effect and the throughput development effect are analyzed. The application has the advantages of fast operation control speed, high efficiency, small error and convenient system pipeline cleaning; the modular design is adopted, the application can be widely applied to various research fields according to different experimental targets, and the sensitive factors influencing the displacement effect or the throughput development effect are researched, so as to guide the improvement of the oil and gas reservoir development effect.

This application belongs to the technical field of pentaangular prism equipment and discloses an anti-polarization pentaangular prism, including a mounting base. A support rod is fixedly connected to the upper surface of the mounting base. A cylinder and a motor are fixedly connected inside the mounting box. A telescopic rod is movably connected to the output end of each cylinder. A rotating rod is provided at the output end of the motor. The rotating rod extends through a connecting hole to the outside of a fixed plate. A mounting rod is fixedly connected to the side of the fixed plate away from the mounting box. A mirror body is provided on the outside of the suction cup. The experimenter can control the operation of the cylinder and the motor through the control panel. First, the cylinder is controlled to move the telescopic rod installed at its output end to a suitable measurement position. The mechanical rotation and mechanical extension can improve the accuracy of the experimental measurement and the stability of the anti-polarization effect measurement. At the same time, the light reflected by the mirror body can be projected onto the measurement plate after exiting the mirror body, which facilitates the collection and analysis of the measurement results by the experimenter.

The application discloses an in-situ environmental device suitable for in-situ loading and heating of metal materials and relates to the field of material mechanical property testing.The device comprises a shell base, a sample clamping assembly, an environmental cavity, a loading mechanism, a force sensor, a heating assembly and a thermocouple, the environmental cavity is composed of a light transmission cylinder, a supporting cylinder and a supporting cylinder base, the heating assembly is installed on the bottom surface of an upper clamp and covers the periphery of a sample, the sample is locally heated through a silicon carbide heating sheet, the loading mechanism is arranged in the shell base to apply an axial load to the sample, the force sensor collects load signals in real time, and the thermocouple monitors the temperature of the sample area and feeds back to a temperature control unit.The device has compact structure and good imaging compatibility, and can realize in-situ testing and three-dimensional damage evolution analysis of metal materials under thermal-mechanical coupling conditions.

The invention belongs to the technical field of non-ferrous metal processing, and relates to a preparation method of a titanium alloy bar for evaluating hard alpha defect influence. According to the preparation method, loose and porous nitrided sponge titanium is added into a titanium alloy raw material, the nitrided sponge titanium is distributed in the geometric center area of the raw material in an electrode pressing die cavity, and the titanium alloy bar containing the hard alpha defect is finally formed through the processes of electrode block pressing, consumable electrode welding and vacuum consumable electric arc melting. The method is used for evaluating the hard alpha defect influence effect. According to the preparation method, the processes of bar drilling, hot isostatic pressing, preset hole welding treatment and the like are omitted, uncertain experimental factors are avoided, the machining process is simple and convenient, and the preparation method can be used for preparing titanium alloy bars with different marks and different hard alpha size defects.

This utility model discloses a pedal impact testing device, comprising: a frame; a quick-change fixture disposed at one end of the frame; a pendulum impact column body fixture disposed in the middle of the frame; a magnetic platform placement welding frame disposed at the other end of the frame, wherein an electromagnetic suction platform is disposed on the magnetic platform placement welding frame and connected to the pendulum impact column body fixture; and a rotating device disposed between the magnetic platform placement welding frame and the pendulum impact column body fixture and connected to the pendulum impact column body fixture. Through the application of this utility model, a pedal impact testing device is proposed. Compared with manual operation, it can not only shorten the single test time and speed up the overall testing process, but also reduce the test errors caused by manual operation and the risk of contact between the person and the pendulum, which is beneficial to improving the accuracy and safety of the test.

The invention relates to the technical field of sample analysis, in particular to an induction heating type large-load thermogravimetric analyzer and a thermogravimetric analysis method. According to the induction heating type large-load thermogravimetric analyzer, the high-precision electronic balance fixed to the base is arranged in the bottom of the supporting assembly, the high-temperature-resistant supporting assembly is used for bearing a sample, the limitation that only milligram-grade powder can be measured through traditional equipment is broken through, large-load block sample testing is supported, the tested sample is complete, follow-up characterization is facilitated, and the test efficiency is improved. The system adapts to various test environments; the integrated induction heating coil directly heats the sample / bearing sheet, the problems of weighing fluctuation of mechanical lifting of existing traditional equipment and thermal inertia of a reaction tube can be avoided, and experimental errors can be reduced. Meanwhile, the real temperature of the sample is directly controlled by utilizing the characteristic of induction heating to be matched with the contact type thermocouple, the lag and error of indirect temperature control are eliminated, the temperature control precision is greatly improved, the temperature rise response is fast, and the problem of data distortion caused by thermal lag of a large-mass sample in the prior art is solved.

This invention relates to the field of soil frost heave characteristic testing technology, and particularly to an improved soil frost heave characteristic testing device and method, comprising an acrylic mold, wherein several threaded holes are respectively opened on both sides of the acrylic mold along its height direction, and a special hole bolt is threaded into the threaded holes. The special hole bolt includes a bolt part and a flared mouth with an integral structure. A circular hole is opened in the middle of the bolt part, and the flared mouth is threaded on the outside. A matching rubber stopper is installed in the middle of the flared mouth. The matching rubber stopper is frustoconical and is divided into four equal parts. The matching rubber stopper fits tightly with the flared mouth. The contraction of the flared mouth causes the middle hole of the rubber stopper to shrink, thereby fitting tightly with the sensor cable. A hexagonal metal washer is threadedly connected to the outside of the flared mouth. The hexagonal metal washer is used in combination with the flared mouth to tighten the flared mouth.

The application discloses a rice gene expression and function verification integrated detection device, which comprises a box body, a liquid nitrogen freezing assembly for freezing rice is installed in the box body, a gene extraction assembly for extracting rice genes is installed in the box body, and a gene detection assembly for detecting and verifying rice genes is installed at the top of the box body; a plurality of steps such as liquid nitrogen freezing, sample grinding, nucleic acid extraction, purification and qPCR detection are integrated, full-process automatic operation is realized through a control module, manual frequent intervention is not needed, human operation errors are greatly reduced, the accuracy and repeatability of detection results are improved, a high-concentration saline solution is combined, a low-salt elution process design is adopted, automatic magnetic bead adsorption and cleaning processes are combined, interference substances such as proteins and impurities in samples are effectively removed, the nucleic acid purity can reach more than 95%, the recovery rate can reach more than 85%, and the reliability of gene expression and function verification results is ensured.

The application discloses an ELISA kit for detecting anti-human laminin gamma 1 IgA autoantibody and application thereof. The kit comprises an enzyme-labeled plate coated with human laminin gamma 1 recombinant protein. Preferably, the human laminin gamma 1 recombinant protein is deglycosylated human laminin gamma 1 recombinant protein. Further, the application also provides application of the kit in preparation of a reagent for diagnosing mucous membrane pemphigoid, in particular Laminin gamma 1 IgA type pemphigoid. The kit is the first kit for detecting human laminin gamma 1 IgA antibody by using the ELISA method, has the advantages of simple operation, short time consumption and low cost compared with traditional immunoblotting method, and adopts full-length deglycosylated laminin gamma 1 recombinant protein as an antigen, thereby solving the problem of incomplete antigen epitope coverage in the prior art, and early detection of diseases can be realized, early treatment is achieved, and the life quality of patients is improved.

The application relates to the technical field of ice wind tunnel test, in particular to a method for matching test working conditions of a propeller ice wind tunnel test and a storage medium. A first calculation model is established based on a forward ratio similarity criterion and a first similarity criterion of the propeller, and a second calculation model is established based on a plurality of set similarity criteria. Then, the basic parameters of a target propeller are acquired, the basic parameters comprising the size, a first angular velocity and a first incoming flow wind speed of the target propeller, and a scale reduction ratio of the target propeller for the ice wind tunnel test. The first angular velocity and the scale reduction ratio are input into the first calculation model to obtain a second angular velocity after scale reduction. Finally, the basic parameters and the second angular velocity are input into the second calculation model to obtain test working condition parameters of the target propeller for the ice wind tunnel test. In this way, the design cycle of matching the test working conditions of the propeller ice wind tunnel test is shortened, and the quality of the test working condition data after scale reduction is ensured.

The utility model relates to the technical field of bearing capacity tests of supports, in particular to a basin-type bearing capacity test device which comprises a base and heat dissipation holes. A placing assembly used for placing a support is installed at the top end of the base, hoisting assemblies used for limiting a bridge are arranged on the two sides of the placing assembly, heat dissipation holes are formed in the left side and the right side of the base, the placing assembly comprises a bottom plate, the bottom plate is arranged above the base, a sliding groove is formed in the inner surface of the bottom plate, and a sliding block is slidably connected into the sliding groove; the top end of the sliding block is fixedly connected with a sliding rod. According to the utility model, the position adjustment of the placing plate in the horizontal direction is realized, so that the basin-type support can accurately bear pressure in the test process, test errors caused by position deviation are reduced, the accuracy and reliability of test results are improved, and the test efficiency is improved. And meanwhile, the placement plate and the basin-type support cannot shake or incline in the test process, so that the safety and stability of the test are ensured.

The application provides a wind wave current sea ice coupling experiment device and experiment method based on a wave-making method, and belongs to the field of ship and ocean engineering experiments. The application solves the problem that the existing scheme cannot meet the requirements of wind wave current sea ice coupling experiments. The experiment device comprises a wind-making system, a wave-making system, a current-making system and a wave-absorbing device. The wind-making system and the wave-making system are arranged on the same side of the outside of an elongated ice water pool. The wave-absorbing devices are arranged on the two sides of the inside of the elongated ice water pool. The current-making system is arranged in the center of the elongated ice water pool along the length direction. The current-making system comprises a jet pipe, a flow partition plate and a bidirectional current-making pump. The number of the bidirectional current-making pump is two. The two bidirectional current-making pumps are arranged on the left and right sides of the flow partition plate. The device is mainly used for wind wave current sea ice coupling experiments.

The utility model relates to a kind of vacuum disc drying system of multi-heat source mode, including steam generator, hot water tank, vacuum disc drying equipment and for the liquid heat source pipeline and gaseous heat source pipeline of vacuum disc drying equipment heat supply;Steam inlet pipeline of liquid heat source pipeline is connected from steam generator to hot water tank, steam flowmeter and hot water tank steam inlet regulating valve are sequentially provided on it;Water inlet pipeline of liquid heat source pipeline is connected from hot water tank to vacuum disc drying equipment, and hot water pump is provided on it;Water outlet pipeline of liquid heat source pipeline is connected from vacuum disc drying equipment to hot water tank, and drying equipment hot water outlet valve is provided on it;Steam inlet pipeline of gaseous heat source pipeline is connected from steam generator to vacuum disc drying equipment, steam flowmeter and drying equipment steam inlet valve are sequentially provided on it;Water outlet pipeline of gaseous heat source pipeline is connected from vacuum disc drying equipment to drain water outlet pipeline, including the third branch and the fourth branch in parallel.

The present application relates to the technical field of rock sample preparation, and provides a rock sample preparation device and a working method thereof, which comprises the following steps: a drill bit drills multiple rock samples from a rock block placed in a wet-dry cycle device at the same time; the wet-dry cycle device performs wet-dry cycles of different times on the rock block after the rock sample is drilled; a jack pushes the rock block after each wet-dry cycle to a band saw blade; the band saw blade cuts the rock block to separate the bottom of the rock block from the top rock block containing the rock sample; the slidable band saw blade separates the cut rock block part from the uncut rock block part after the jack pushes the rock sample to the hole passing sample plate; a clamp clamps the rock sample falling from the hole of the hole passing sample plate; a flatness detector detects the flatness of the top surface and the bottom surface of the rock sample; and a cutting and polishing saw blade polishes and cuts the top surface and the bottom surface of the rock sample when the flatness detection does not meet the requirements. The present application is not only more convenient to operate, but also reduces experimental errors, and can better predict the mechanical properties of the original rock.

The utility model relates to the technical field of animal experiment instruments, in particular to a visual small animal lung drug delivery device which comprises a body and a flaring device detachably arranged at the front end of the body, and a visual channel and a drug delivery channel are arranged on the body. The flaring device is of a telescopic corrugated pipe structure, and the whole flaring device is conical. A first channel and a second channel which are through are formed in the flaring device in the length direction of the flaring device, the first channel is communicated with the visual channel, and the second channel is communicated with the drug delivery channel. The flaring device is arranged to be of a telescopic corrugated pipe structure, in the actual use process, an operator can accurately control the expansion degree and the overall length of the flaring device according to different kinds of small animals, the universality of the dosing device to different experimental animals is greatly improved, and the dosing device is convenient to use. Operation difficulty and experimental errors caused by mismatching of the flaring device are reduced, and the technical problem that an existing flaring device of a fixed structure cannot be adjusted according to oral cavities of different types of small animals is solved.

The application relates to a multi-dimensional visual micro-force measuring device and a measuring method, and relates to the technical field of experimental measuring devices.The device comprises a high-pressure reaction cavity, a three-dimensional moving table, a moving-end glass fiber, a fixed-end glass fiber and an image and data acquisition system; the moving-end glass fiber is fixed on the three-dimensional moving table, and the fixed glass fiber is fixed on the inner wall of the high-pressure reaction cavity; a first observation window is arranged at the top of the high-pressure reaction cavity, a second observation window is arranged on one side of the high-pressure reaction cavity, and the image and data acquisition system is used to realize the measurement of two forms of micro-forces between hydrate particles-hydrate particles, hydrate particles-droplets-wall surfaces. The application can accurately measure the micro-forces between hydrate particles-hydrate particles, hydrate particles-droplets-wall surfaces in a high-pressure gas main system through multi-dimensional and multi-angle observation, and further evaluate the effect of a "double-effect" inhibitor in "preventing particle aggregation and preventing particle wall adhesion".

The utility model provides a kind of automatic determination device of ore pulp sedimentation curve based on PLC, including shell, the shell is equipped with measuring cylinder, the measuring cylinder is vertically arranged, its both sides are equipped with first plugboard, second plugboard and first light shield respectively, the first plugboard is equipped with adjustable emission light source to the side wall of measuring cylinder, the second plugboard is equipped with several photosensitive switches to the side wall of measuring cylinder, the rest two sides of the measuring cylinder are equipped with the second light shield and third light shield, the shell top is equipped with cover, the cover middle part is equipped with stirring paddle, the stirring paddle top is equipped with driving motor. The utility model can realize ore pulp sedimentation line accurate determination, solve the traditional ore pulp sedimentation curve determination test operation tedious, operation failure is more, sedimentation line is not accurate, test personnel eye overuse and so on, with simple structure, the characteristics of convenient operation, strong practicality.

This invention discloses a metal nanoparticle reagent kit, its preparation method, and its application in the detection of eczema biomarkers. The metal nanoparticle reagent kit utilizes a chemical self-assembly method to deposit metal nanoparticles onto the surface of the kit's well plates. ADNA is modified onto the surface of the metal nanoparticles through Ag-S bonds. Subsequently, through a complementary pairing process between the ADNA and cDNA chains, a cDNA chain with a Cy3 terminus at one end is brought close to the metal nanoparticles to synthesize a nucleic acid aptamer sensor. The metal nanoparticle reagent kit can specifically recognize and rapidly capture eczema biomarkers using nucleic acid aptamers. Combined with surface-enhanced Raman spectroscopy, it achieves rapid, sensitive, and accurate qualitative and quantitative detection of eczema biomarkers. Simultaneously, the internally encapsulated internal standard molecule signal can dynamically correct the Raman signal in the metal nanoparticle reagent kit.

This invention discloses a method for the continuous preparation of formic acid using a green carbon source. The method involves adding a slurry of catalyst and water to a microchannel reactor, adjusting the flow rates of hydrogen and carbon dioxide (the green carbon source) according to the feed rate, and synthesizing formic acid after microchannel reaction. The microchannel reactor employs a multi-module structure, with the reaction plate consisting of three layers: the first and third layers are heat transfer layers, and the middle layer is the reaction layer, with multiple reaction modules connected in series. This invention can use various types of catalysts, exhibiting strong adaptability, and provides mild reaction conditions, achieving good reaction results. Compared to conventional reactors, the microchannel reactor allows for precise control of reaction conditions, and the larger heat exchange area significantly improves mass and heat transfer efficiency. The online continuous reaction of this invention breaks the intermittent operation mode of conventional reactors, reducing experimental errors caused by intermittent operation.

The utility model discloses an oil-immersed light high-voltage test transformer which comprises a transformer body, a plurality of binding posts are installed at the top end of the transformer body, fixing plugs are inserted into the tops of the binding posts, electric connection rods are installed in the binding posts, electric connection sleeves are connected to the outer sides of the electric connection rods in a sliding mode, and the fixing plugs are inserted into the fixing plugs. A supporting ring is installed on the side wall of the power connection sleeve, a groove corresponding to the power connection sleeve is formed in the bottom of each fixing plug, and one side of each fixing plug is fixedly connected with an L-shaped linkage rod. The limiting block, the L-shaped linkage rod and the fixing plug are limited through rapid limiting and locking of the limiting wedge block on the limiting block, the stability of extrusion of the fixing plug and the supporting ring on the end of the connecting line is guaranteed, the improved connecting operation is simpler, more convenient and faster, compared with a traditional screwing mode, the time for connecting multiple lines is shortened, and the connecting efficiency is improved. The connection efficiency is improved, and the labor intensity of operators is reduced.

This invention discloses a test apparatus and method for testing the bond performance between FRP reinforcement and concrete. The apparatus includes an integral FRP reinforcement beam-hinge specimen and a loading mechanism. The integral FRP reinforcement beam-hinge specimen includes two steel hinges, one steel hinge shaft, two concrete half-beams, and one FRP reinforcement. The upper inner sides of the two concrete half-beams each have notches. The two steel hinges are located at the notches of the two concrete half-beams, and the steel hinge shaft passes through the hinge holes of the two steel hinges. The two concrete half-beams are placed opposite each other axially. The FRP reinforcement passes through the lower part of the two concrete half-beams, connecting them together. The steel hinges, FRP reinforcement, and concrete half-beams are cast together. This invention pre-embeds a beam-hinge device inside the FRP reinforcement beam-hinge specimen, constructing an integral FRP reinforcement beam-hinge specimen, which significantly enhances the overall stress performance of the specimen. This allows it to bear external forces more evenly during loading, ensuring consistent stress distribution and effectively improving the accuracy and reliability of the test results.

The utility model discloses a portable constant temperature device used for being matched with an electrochemical workstation for testing, and belongs to the technical field of constant temperature devices. The device comprises an outer shell, an inner shell, a cover plate, a heating structure and a refrigerating structure, the inner shell is arranged in the middle of the interior of the outer shell, the cover plate is arranged at the upper end of the outer shell, a lifting structure is arranged at the lower end of the interior of the inner shell, the upper end of the lifting structure is connected with a bottom plate, a clamp used for clamping a battery is arranged on the upper end face of the bottom plate, and a connecting wire is arranged on the clamp. A heating structure is arranged on one side of the inner shell and located in the outer shell, and a refrigerating structure is arranged on the other side of the inner shell and located in the outer shell. The device is small in size, simple to operate and convenient to collect and carry, and can be connected with an electrochemical workstation to test one battery at a time, so that the experimental error is reduced, and the experimental accuracy is improved.

The invention relates to the technical field of coal mine waterproofing, and discloses a permeability coefficient measuring device which comprises a bottom plate and a permeation assembly arranged on the bottom plate, and further comprises a control assembly. The control assembly comprises a support, an air pump is fixedly installed on the support, an air outlet pipe and an air inlet pipe are fixedly installed on the air pump, the end, away from the air pump, of the air outlet pipe is connected with the collecting box, the end, away from the air pump, of the air inlet pipe is connected with the permeation assembly, and air generated in the permeation assembly is pumped out through the air pump. Through cooperation of the air pump and the experimental tube, the test needs to be carried out in a closed environment, so that when sampled soil in the experimental tube slowly releases gas in a laboratory environment, the air pump can pump the released gas out of the experimental tube, the influence of the gas on the determination of the permeability coefficient is reduced, and meanwhile, the permeability coefficient is determined according to different conditions of the determined soil. The air exhaust position of the air pump can be changed, negative pressure extraction operation is carried out in the experiment tube, and the experiment time can be shortened.

The utility model discloses a reagent mixing device of preventing misoperation relates to the field of life science technology, including mixing cup body, third valve, third liquid discharge pipe, the surface of mixing cup body is provided with observation mechanism, the surface of mixing cup body is provided with stirring mechanism, the surface of mixing cup body is provided with auxiliary mechanism, and observation mechanism includes screw column, clamping plate, transparent observation cup, scale, first liquid discharge pipe, first valve, second liquid discharge pipe, second valve, and the surface of mixing cup body is movably connected with the surface of clamping plate, and the surface of mixing cup body is threadedly connected with the surface of screw column. The utility model discloses through the output of rotating motor drive stirring rod and carry out rotation, and stirring rod rotation drives stirring piece and carry out rotation, and stirring piece carries out stirring fusion to the reagent in mixing cup body, is favorable for accelerating reagent fusion speed, promotes reagent fusion, uniform mixing, reduces the experimental error due to the fusion uneven, and has been facilitated for use.

The application relates to the technical field of concrete performance test, and discloses a soft rock hole slag concrete performance test equipment, which comprises an anti-permeation instrument body, a plurality of test mold seats are arranged at the top of the anti-permeation instrument body, a clamping pin is slidably connected to the top of the test mold seat, and an air bag is fixedly installed on the inner side wall of the test mold seat. The pressure change of the pressing ring caused by the extrusion ring before and after the magnet is approached during the upward movement of the adjusting block and the test block, the air bag can be turned upward with the test block to expose the surface of the test block, the broken particles can be easily cleaned and will not fall into the test mold seat, the broken particles will not fall on the inner bottom wall of the test mold seat and enter the water storage tank through the backwater pipe or block the water inlet, the water pressure during the next batch test is affected, the water pressure is uniformly transmitted, the probability of equipment failure and test error is reduced, and the accuracy of the test result is maintained.

The present application relates to a kind of based on field direct grouting microbial reinforcement pile test device and loading test method, fill test soil body in test site, vertical implantation single pile in test soil body, with single pile as symmetry center, steel frame structure is respectively arranged in its two sides, one side steel frame can slip installation jack, the other side steel frame can slip installation exciter, the output end of jack and exciter all bear single pile wall;Strain gauge is pasted in single pile body different height, force sensor is installed in the output end of jack, exciter, eddy current displacement meter is installed in the output end of jack, exciter near acting point position;The steel frame structure of installation jack side is provided with slurry tank, bacteria solution and cementing solution are contained in slurry tank, one end of conveying pipe is inserted in slurry tank, the other end is inserted into test soil body by grouting pump.The present application simulates ocean dynamic load by standardization loading process, in experiment, using the method of grading loading and repeated test, can provide scientific basis for the engineering application of microbial reinforcement pile, with significant practical value and popularization prospect.