106results about How to "Realize sampling" patented technology

The invention provides a preparation method of a multifunctional surface enhanced raman scattering (SERS) substrate. The preparation method comprises the following steps of: firstly, paving a layer of ZnO seeds on the inner wall of a capillary, developing a ZnO nanorod array in Zn(NO3)2 and hexamethylenetetramine (HMT) solution, and soaking and reacting the capillary in solution of (NH4)2TiF6 and H3BO3, thus obtaining a TiO2 nanotube array; and soaking a nanotube in which TiO2 is grown into SnCl2 to ensure that a layer of bivalent tin ions are adsorbed on the surface layer of the nanotube, soaking the nanotube into Ag(NH3)2+ and reducing the nanotube to silver particles, thus obtaining the multifunctional SERS substrate. Compared with the conventional SERS substrate, the multifunctional SERS substrate based on the capillary has functions of raman enhancement and repeated use, is convenient to carry and sample, and can realize real-time field detection.

The invention relates to a minitype vehicle sewage sampling device, which comprises a minitype remote-operated movable robot, wherein the minitype remote-operated movable robot is provided with a water pump, a transparent closed container, a mechanical arm and a second camera used for acquiring images in accident sites and monitoring the capacity of the sampled sewage; the second camera is positioned on the rear side of the transparent closed container; the water pump is provided with a sampling pipe and a conduit; the water inlet of the water pump is connected with one end of the sampling pipe, and the other end of the sampling pipe is bound with the mechanical arm; one end of the conduit is connected with the water outlet of the water pump, and the other end of the conduit is connected with the transparent closed container; and the mechanical arm is provided with a first camera. The device can be applied to highly polluted and harmful environment where persons cannot approach, such as accident sites of chemicals leakage and industrial sewage pollution, and can sample sewage. The device takes the minitype remote-operated movable robot as a platform to replace environmental workers to enter pollution sites, and realizes zero casualty of the environmental workers.

The invention discloses a sandstone aggregate production and detection device, which comprises a feeding belt, a material receiving rotary table, a feeding hopper, a dryer and a screening instrument that are disposed from top to bottom in order. A controller is arranged outside the material receiving rotary table, and one side of the screening instrument is provided with a weighing instrument. The controller is used for sending a command signal to control the material receiving rotary table in terms of driving the feeding hopper to rotate together, and the feeding hopper rotates to a position right below the feeding belt discharge port to perform material receiving. The dryer is used for drying the discharged material, and the screening instrument is used for screening the dried material. The device provided by the invention is used for detecting the water content of sandstone aggregate and specific fineness modulus in a concrete sandstone aggregate online production process, is mounted at the discharge port position of a concrete production line, and a rack is fixedly mounted at a corresponding part to maintain the entirety stable and safe. Good sealing ensures that the whole device can carry out effective and high quality detection work in real time in the sandstone aggregate online production process.

The invention discloses a soil collection device and a collection method thereof. The collection device comprises a screen, a vibration motor, a first cylinder, a second cylinder, a first motor and asecond motor; the screen is used for filtering and screening impurities in a soil sample entering a funnel; the vibration motor vibrates to drive the funnel to vibrate, thereby accelerating the speedof filtering the soil sample by the screen; the filtered soil sample further ends the sleeve through a feeding pipe, the controller controls the first cylinder and the second cylinder to work, the first cylinder and the second cylinder are used for driving a piston rod to elongate, thereby pushing a first pressure plate and a second pressure plate to move in the sleeve to extrude and mold the soilsample; after the soil sample is molded, the second cylinder is used for driving the piston rod to contracting, thereby driving the second pressure plate to stretch out from the sleeve; inspection personnel can conveniently take out the extruded and molded soil sample; a push rod and a handle are arranged so as to facilitate the inspection personnel to push the device to move.

The invention discloses a water sample extraction and storage device for watercourse water quality detection. The device comprises a base, wherein a water guide cavity is mounted on the left side of the upper end of the base; a lifting piston is arranged in the water guide cavity; a lifting rod is mounted in the middle of the upper end of the lifting piston; a guide plate is mounted in the middleof the upper end if the lifting rod; a guide rod is mounted in the middle of the upper end of the guide plate; a first support rod is mounted on the left side of the upper end of the water guide cavity; a second support rod is mounted on the right side of the upper end of the first support rod; a water storage tank is mounted in the middle of the upper end of the base; a mixing shaft is arranged in the water storage tank; a rotation cam is mounted in the middle of the upper end of the mixing shaft; a traction motor is mounted on the left side of the upper end of the second support rod; a traction wheel is mounted in the middle of the traction motor; the traction wheel is wound with a traction cable; a fixed pulley is wound with the left end of the traction cable; and the tail end of the traction cable is connected with a water-proof tank. The device achieves sampling of water quality of different water levels of a watercourse; water samples are stored in a disturbance manner after water quality sampling; and a phenomenon of static settlement of the water samples is avoided.

The invention relates to an experimental sampling device, and in particular relates to a time delay sampling liquid sampler and a sampling method thereof. The liquid sampler includes test tubes, a rotary chassis, a PLC controller, test tube clamping grooves and column switches, the plurality of test tube clamping grooves are uniformly arranged on the upper end surface of the rotary chassis along the circumferential direction, one test tube is arranged in each test tube clamping groove, the column switches are arranged at the outer side of the test tube clamping grooves, the column switches are provided with switch ports, the PLC controls rotation of the rotary chassis to further drive the tubes in the test tube clamping grooves to rotate, so that the switch ports and test tube sampling ports can be in coincidence at different positions, and the purpose of time delay sampling can be achieved; through uniform arrangement of a plurality of sample storage devices in each test tube along the length direction, and when the switch ports and the test tube sampling ports are in coincidence, samples in different depths flow into the sample storing devices at different heights to realize sampling of the samples in different depths.

The invention relates to a three-dimensional mechanical hand, which is characterized in that: the three-dimensional mechanical hand comprises a tail end mechanical arm, a front end mechanical arm, a first driving mechanism, a second driving mechanism, a mounting framework, and a lifting mechanism, wherein the front end mechanical arm is movably connected with the tail end mechanical arm; the first driving mechanism is connected with the tail end mechanical arm and drives the tail end mechanical arm to swing; the second driving mechanism is connected with the front end mechanical arm and drives the front end mechanical arm to swing; the first driving mechanism and the second driving mechanism are mounted on the mounting framework; and the lifting mechanism is connected with the mounting framework, and controls the lifting of the mounting framework. The three-dimensional mechanical hand solves the problem that the prior mechanical arm can only realize sampling samples which are arranged in a line or a curve in the spacial state.

The invention relates to the related field of dyes, and discloses a device for continuously and quickly detecting the dry rubbing fastness of a dyed fabric, wherein the device comprises a detection box, a detection cavity is formed in the detection box, a white cloth inlet and outlet which is through left and right and communicates with the detection cavity is formed in the detection box, and a top electromagnet cavity is formed in the upper side of the detection cavity; a limit groove is communicated between the top electromagnet cavity and the detection cavity, and a rotary disc cavity is arranged behind the detection cavity. According to the device, the dry rubbing fastness of a plurality of dyed fabric samples can be detected, staining conditions are left on white cloth at equal intervals, and subsequent rating of the fabric dyeing fastness is facilitated; According to the device, the height of a crochet hook is set to be the same as the thickness of the fabric, so that the devicecan realize single sampling of a single fabric sample, a plurality of samples are prevented from being grabbed due to friction between fabrics, and the reliability of a final result is ensured while the detection efficiency is improved.

The invention discloses an urban water sample collector. The urban water sample collector comprises a collector body, wherein the collector body is a vertical rod-shaped body, and comprises a plurality of water storage cavities, a sliding cavity, a lifting rod, baffles, and a lifting driving device; the water storage cavities are distributed in the height direction of the collector body at equal intervals; a water inlet is arranged at the top of the side wall of each water storage cavity; the sliding cavity is arranged on the collector body located on one side of each water inlet, and can communicate with each water inlet; the lifting rod is arranged in the sliding cavity and can move up and down; the baffles, of which the number is identical to the number of the water storage cavities, are mounted on the lifting rod; the top of the lifting rod is connected with the lifting driving device; when the lifting rod moves up under the action of the lifting driving device, all the water inlets are open, and collected water samples can enter the corresponding water storage cavities through the water inlets; and when the lifting rod moves down, the water inlets can be blocked by the corresponding baffles. The urban water sample collector disclosed by the invention has the advantages that sampling can be carried out on water layers at different depths, so that multiple times of samplingin the traditional art can be avoided, and the sampling efficiency can be greatly improved.

The invention relates to sea floor exploration equipment, in particular to a deepwater visual and controllable ramming experiment work platform. An impact table is arranged under a main casing; an oil pump motor, an oil tank and an oil cylinder are sequentially arranged in the main casing; an oil pump driven by the oil pump motor to work is arranged in the oil tank; a control panel for controlling the oil pump motor to work is arranged on the oil cylinder; the oil tank communicates with an oil path valve group arranged on an oil chamber of the oil cylinder through an oil cylinder hydraulic pipe; the lower end of a piston of the oil cylinder is connected with a driving hammer positioned in the main casing; the driving hammer rams the impact table in a reciprocating way along with the ascending and descending of the piston; the lower end of the impact table is connected with a replaceable work head; a battery cabin, an electric cabin and sound communication equipment are respectively arranged at the outer surface of the main casing; a protection cover covers the outside of the main casing. The deepwater visual and controllable ramming experiment work platform is provided with the hydropneumatic driven driving hammer capable of realizing reciprocating ascending and descending; the work head connected with the impact table can be inserted into water bottom soil through the control of the control panel; the work head can be inserted into deep soil through the impact of the driving hammer.

The invention discloses a soil analysis and detection device and a method thereof. The soil analysis and detection device comprises a detection box body; a storage battery is arranged in the detection box body; universal wheels are fixed to the four corners of the bottom end of the detection box body correspondingly, wheel brakes are arranged at the tops of the universal wheels, and a handle is fixedly connected to one end of the top of the detection box body; a detection groove is formed in the top of the detection box body, a console is arranged in the detection groove, and a first groove is formed in the side, away from the handle, of the detection box body; a ball screw and a first driving motor are arranged in the first groove, and the ball screw is in transmission connection with an output shaft on the first driving motor; and the ball screw is slidably connected with a sampling device through threads, and an air drying device, a grinding device and a filtering device are arranged in the detection box body. The soil analysis and detection device has high practicability in the aspect of soil analysis and detection.

The invention discloses a full-automatic analysater. The full-automatic analysater comprises a open top box type analysater casing, wherein a sample taking and sending device, a sample reagent disk device and a detection module device; the sample taking and sending device comprises a cross beam frame module, a sample adding box module and a sample adding needle; the sample reagent disk device andthe detection module device are arranged on the front side of the sample taking and sending device side by side; the sample reagent disk device comprises a rotational sample reagent disk which comprises an upper layer, a middle layer and a lower layer; the sample reagent disk is provided with a plurality of reagent positions and sample positions; the detection module device comprises a detector box body and a detector arranged in the detector box body. According to the full-automatic analysater disclosed by the invention, a sample is detected by using an optical method; meanwhile, the detection precision of the analysater can be improved, and the testing cost is reduced.

The invention relates to the technical field of petroleum fermentation and particularly relates to a detection sampling device for petroleum fermentation treatment. Technical problems that in the prior art, sampling is not comprehensive, and fermentation fails due to uncovering sampling are solved. The detection sampling device for petroleum fermentation treatment comprises a first rotating disc, a telescopic mechanism, a sealing mechanism, a sampling mechanism, a turnover mechanism, a fixing mechanism and a collecting mechanism, wherein the telescopic mechanism is arranged in the middle of the first rotating disc, the sealing mechanism is arranged on the right portion of the telescopic mechanism, the sampling mechanism is located below the sealing mechanism, and the turnover mechanism is arranged below the sampling mechanism; the fixing mechanism is arranged below the turnover mechanism, and the collecting mechanism is arranged below the fixing mechanism. The detection sampling device is advantaged in that omnibearing sampling of petroleum fermentation liquor in a fermentation tank is achieved through the first rotating disc and the telescopic mechanism, isolation of air inside and outside the tank body during sampling is achieved through the sealing mechanism, an upper surface of a conical cover entering the tank body does not make contact with outside air, and the collecting mechanism is simply and conveniently fixed, assembled and disassembled through the overturning mechanism and the fixing mechanism.

The invention discloses a near-shore marine water quality detection sampling device capable of collecting water sources of different depths, the near-shore marine water quality detection sampling device comprises a floating platform, a storage battery, a servo motor, a third bevel gear and a discharge pipe, the bottom of the floating platform is fixedly provided with an outer box body, the outer box body is internally provided with the storage battery and the servo motor, and the front side of a vertical plate is provided with a limiting block; and a sealing plug is arranged at the bottom of the vertical plate, the other end of the steel wire rope is connected with the second rotating shaft, and the inner box body is arranged in the outer box body. According to the near-shore marine waterquality detection sampling device capable of collecting water sources of different depths, the screw rod is in threaded connection with the three connecting plates, and the connecting blocks made of rubber are arranged on the outer sides of the connecting plates, so that when the screw rod rotates, the connecting plates can be driven to move together, and water sampled in the earlier stage is pushed; sample water in different depths is stored in a classified mode, subsequent detection and comparison are facilitated, and the detection efficiency is improved.

The invention provides a sampling device and method for material flows of each outlet of a multistage centrifugal extractor, belonging to the technical field of solvent extraction and sampling analysis. The device comprises the multistage centrifugal extractor, a mounting rack, a linear bearing, a guide rod, a slide plate, sampling cups and a liquid storage groove, wherein the linear bearing is mounted on the guide rod and the slide plate is installed on the linear bearing and is provided with a plurality of sampling cup holding holes. When liquids flow out from each outlet pipe of the multistage centrifugal extractor, a manipulator installed in an equipment room places the sampling cups in each hole in the slide plate, then moves the slide plate to approach each outlet pipe of the multistage centrifugal extractor so as to allow the liquids flowing out from each outlet pipe to flow into the sampling cups, and finally moves away the slide plate when preset sampling time is up. The sampling device provided by the invention is convenient to operate by the manipulator, realizes simple, reliable and high-efficiency operation, is applicable to sampling of material flows of each outlet during strong radioactivity experiments with a multistage centrifugal extractor system and provides conditions for acquisition of accurate data through the strong radioactivity experiments.

The invention discloses an off-line fully automatic intelligent sample preparation system which comprises a first-level crushing unit, a fixed mass splitting unit, a full water splitting unit, a second-level crushing drying unit, a splitting drying unit, a sample preparation crushing unit, an automatic packaging unit, an electrical control unit and a dust removal unit. The first crushing unit, thefixed mass splitting unit, the total splitting unit, the second crushing and drying unit, the splitting and drying unit and the sample preparation and crushing unit are arranged in sequence. According to the off-line fully automatic intelligent sample preparation system, a traditional manual sample preparation method is changed, and the intelligent and automatic control of sample preparation links is realized; and supervision and management of people is changed to maintenance and management of equipment, and the procedural and standardized management work is realized.

The invention relates to an ammonia nitrogen detection method and an ammonia nitrogen detection device based on electrodialysis ion transformation. Through a polarization principle of electrodialysis, pure water is electrolyzed to generate alkaline electrolytic water so as to replace the effect of a sodium hydroxide solution, thus achieving transformation of ammonium ions in a sample solution. The ammonia nitrogen detection device comprises an anode compartment electrodialysis cell, a cathode compartment electrodialysis cell, an electromagnetic valve, an injection pump and a detection tank, wherein two electrode compartments of the anode compartment electrodialysis cell and the cathode compartment electrodialysis cell are separated by a cation exchange membrane; cation exchange resin and an anode electrode are arranged inside the anode compartment; anion exchange resin and a cathode electrode are arranged inside the cathode compartment. The ammonia nitrogen detection method comprises the following steps: electrolyzing by the electrodialysis device by using an electrolytic cell with the two electrode compartments; after electrolysis, transferring a certain volume of alkaline electrolytic water to the detection tank, mixing the electrolytic water with a water sample to be detected according to a proportion, and ensuring that the pH of the mixed water sample is higher than 11 to meet an alkalization need; detecting by using an ammonia-sensitive electrode to obtain the ammonia nitrogen content value of the water sample to be detected. Chemical reagents are not required, and alkaline electrolytic water can be continuously generated only by using electrical energy and pure water, so that environment pollution and secondary pollution are avoided.

The invention provides an implantation and recovery device for an adsorption wire by surface geochemical exploration. The implantation and recovery device comprises a drilling machine fixing device, a drilling machine lifting device, a drilling machine, a drilling rod, an implantation rod and a signal device, wherein the drilling machine consists of a drilling machine main body, clamping rods, a remote controller and lower inserting feet; a pin hole is formed at the side part of the top end of the drilling rod; clamping holes correspond to the clamping rods; a circular swinging iron sheet is arranged in the center of the bottom of the drilling rod; a swinging magnet is arranged in the drilling rod, in a circular ring shape, and fixed at the bottom of the drilling rod; an opening of the swinging iron sheet faces outwards; the implantation rod is located in the center of the interior of the drilling rod; a pin hole is formed at the side part of the top end of the implantation rod; a gear groove is formed in the implantation rod; a net structure is arranged outside the implantation rod, and provided with a large opening at the middle lower part of the implantation rod; the adsorption wire is arranged at the bottom of the implantation rod; the exterior of the implantation rod is surrounded by a dismountable large-opening protective net; and the signal device comprises a signal transmitting device, a signal positioning device and a signal lamp. In addition, the invention further provides an implantation and recovery method for the adsorption wire by the surface geochemical exploration.

The invention provides a preparation method of nano tin antimony oxide powder and solves the technical problem that a preparation method in the prior art has complex steps, requires manual operations and is low in production speed. The preparation method includes the following steps: A) dissolving tin tetrachloride and antimony nitrate in dilute hydrochloric acid, stirring the solution and gradually adding an alkali solution until the pH value is 7-9, continuously stirring the solution until tin ions and antimony ions are completely precipitated to prepare a tin hydroxide and antimony hydroxide precursor; B) filtering and separating the tin hydroxide and antimony hydroxide precursor and washing the tin hydroxide and antimony hydroxide precursor with deionized water; C) adding water and polyethylene glycol to the washed precursor, stirring the mixture uniformly, moving the mixture to a reaction kettle to prepare nano slurry; and D) separating and drying the nano slurry, and calcining the nano slurry at 400-700 DEG C for 2-6 h, and crushing the calcined substance through an air-flow crusher to prepare the nano tin antimony oxide powder. The method is high in production efficiency.

The invention provides a production method of nanoscale rice starch. The technical problems that a traditional smashing mode is adopted in an existing preparation method, preparation time is long and production cost is high are solved. The method uses rice as the production raw material and includes the following steps of a, preparing rice starch; b, conducting homogenizing treatment; d, conducting smashing; e, conducting detecting. The method has the advantage of being low in production cost.

The present invention discloses sewage sampling equipment and method for sewage treatment. The equipment comprises an equipment body, wherein a sampling opening is formed in the middle of the equipment body, a sampling pipe is arranged in the sampling opening in a penetrating mode, mounting grooves are formed in the two sides of the sampling pipe, driving mechanisms are fixedly mounted in the mounting grooves, and a floating ring is fixedly mounted on the outer wall of the lower end of the equipment body; a rotary disc is fixedly installed at the top end of the equipment body and rotationallyconnected with the equipment body, a plurality of sampling bottles are detachably installed at the top of the rotary disc, liquid inlets are formed in the top ends of the sampling bottles and connected with sampling pipes through pipelines; exhaust ports are formed in the upper ends of the side walls of the sampling bottles and connected with the output end of a vacuum pump through pipelines; andthe vacuum pump is fixedly installed in the equipment body. According to the ivnention, the driving mechanism drives the sampling pipe to move up and down, so that water can be sampled at different depths, and the accuracy and stability of sewage quality monitoring are improved.

The invention discloses a bottom sampling barrel. The bottle sampling barrel comprises a hoisting ring, a shell assembly and a valve element assembly, wherein the shell assembly is a hollow shell with a vertical central axis and comprises an upper end sleeve, a shell and a lower end sleeve which are fixedly connected with one another vertically; the valve element assembly is arranged in a cavity of the shell assembly and comprises an upper valve element, a connecting rod and a lower valve element; the central axis of the connecting rod is vertical; the upper valve element and the lower valve element are respectively connected to the upper end and the lower end of the connecting rod fixedly; the lower end of each of the upper valve element and the lower valve element is a cone with the small bottom end; in a natural state, the upper valve element and the lower valve element respectively drop into taper holes of the upper end sleeve and the lower end sleeve; the tip of the cone of the lower valve element extends out of the lower end surface of the lower end sleeve; ring slots are respectively formed in the outer wall of the cone of the upper valve element and the outer wall of the cone of the lower valve element; O-shaped sealing rings are respectively arranged in the ring slots; in the natural state, the O-shaped sealing rings on the upper valve element and the lower valve element are respectively in close contact with the surfaces of the taper holes of the upper end sleeve and the lower end sleeve. The bottle sampling barrel is further characterized in that a counter weight is arranged on the connecting rod. The bottom sampling barrel can be used for liquid bottom sampling.

The invention discloses a sewage detection device for factories, which comprises a frame, a support plate is arranged at the bottom of the frame, a storage box is provided on one side of the top surface of the support plate, a power supply is provided on the inner bottom surface of the storage box, one side of the power supply is located in the storage box A controller is arranged on the inner bottom surface, a rotating shaft is arranged on one side of the storage box and the other side on the top surface of the supporting plate, a first motor is arranged on one side of the rotating shaft and on the top surface of the supporting plate, and a first gear is arranged on the output shaft of the first motor , the first gear is meshed with the second gear, the second gear is arranged on the output shaft of the rotating shaft, the detection equipment body is arranged on the top surface of the frame, and a support frame is provided on one side of the detection equipment body and on the top surface of the frame. A second motor is arranged on the side and on the top surface of the frame. The beneficial effects of the invention are: the detection device can not only realize the detection of sewage components, but also detect the components of insoluble particle impurities in sewage, which is suitable for popularization.

The invention discloses a trace liquid quantifying device, a sampling and sample adding method and application in nucleic acid testing, the trace liquid quantifying device comprises a thin rod, one end of the thin rod is used as a sampling end, the trace liquid quantifying device adopts a disposable thin rod to dip a sample and add a sample, and the invention relates to the technical field of trace liquid quantitative sampling. According to the trace liquid quantifying device, the sampling and sample adding method and the application in the nucleic acid testing, sampling and sample adding aredesigned on the basis of the principle that liquid is adsorbed on the surface of an object, rapid, simple and convenient quantitative sampling and sample adding are achieved, the problem of quantitative sampling and sample adding of trace liquid is solved, and template taking and adding operation of a nucleic acid testing is quite easy; the sample taking and adding method is particularly suitablefor sample adding of a trace sample template such as a nucleic acid testing, sampling and sample adding are achieved by adsorbing liquid through the surface of an object, the structure is simple, operation is very easy and convenient, and the method is very suitable for non-professionals to use on site.

The invention provides a pretreatment system for a water sample. The pretreatment system comprises a sample introduction unit, a primary liquid storage unit, a secondary liquid storage unit, enrichingunits and a nitrogen blowing concentrating unit, wherein the sample introduction unit comprises a funnel and a water conveying pipe which are connected with each other, and a filter is arranged in the water conveying pipe; the water conveying pipe is connected with the primary liquid storage unit; the secondary liquid storage unit comprises three or more liquid storage devices, the enriching units comprise three or more enriching columns, the liquid storage devices and the enriching columns are connected in a one-to-one correspondence manner through pipelines and valves, filter membranes arearranged at inlets of the liquid storage devices, and the inlets of the liquid storage devices are connected with the primary liquid storage unit through pipelines and valves; the enriching columns are connected with the nitrogen blowing concentrating unit. The system provided by the invention is simple in use and high in treatment efficiency, pretreatment work can be completed by using differentenriching units according to water sample detection requirements, the pretreatment of minute pollutants of different properties is synchronously achieved in the same reaction system, the pretreatmenteffect is remarkably improved, the energy consumption is remarkably lowered, the reactor structure is optimized, and the floor area is reduced.

The invention belongs to the technical field of medical equipment, and particularly relates to an energy-saving thyroid cyst puncture suction device. The device comprises a fixing sleeve, a fixing hole is formed in the fixing sleeve, and a puncture suction device is detachably installed in the fixing hole. The puncture suction device comprises a needle head, an outer cylinder, a sliding plate, a movable ball, a fixed handle, a movable handle and a reset assembly. A magnetic component is arranged in the sliding plate, and a magnet which is in mutual magnetic attraction with the magnetic component is arranged on the movable handle; a one-way air valve is further arranged on the cylinder wall of the outer cylinder and located between the front end of the inner wall of the outer cylinder and the sliding plate. By repeatedly moving the movable handle, negative pressure is continuously applied to the needle head, finally, a cyst sample is sucked out, electric negative pressure equipment is not needed in the whole process, electric energy is not consumed, and the device is energy-saving and small in operation difficulty.

The invention discloses a device for measuring the effect of bioturbation on distribution of pollutants in sediments. The device belongs to the fields of lake ecology and environment protection, and comprises a ventilation cover, a shell, a base, a liner, a sampling station, a sampling shovel and a lifting pedestal, wherein the ventilation cover is fastened on the shell; the liner is arranged in the shell; the shell is connected with the base; a ventilation hole is formed in the top part of the ventilation cover; a vent hole is formed in the bottom part of the ventilation cover; during sampling, the ventilation cover and the base are removed, the lifting pedestal is connected with the bottom part of the shell, a lifting table is arranged on the lifting pedestal, the sampling station is sleeved on the shell and is provided with an edge extending inwards, a platform for supporting is arranged on one side of the sampling station, two raised guide rails are arranged on the platform, and the sampling shovel is arranged on the guide rails of the sampling station. The device not only can simulate an experimental culture process, but also can realize accuracy and speediness during the sampling process, an experiment process is simplified, the experiment time is shortened, and the work efficiency is improved.

The invention discloses a multitube barium sulfate solution sampling device. The device is used by arranging a pipette on the lower end of a front protraction frame by operating staff before use, connecting with an air suction pipe through a through hole inside the front protraction frame, then rotating a rotating pressure rod to check whether an air bag has air leakage conditions, then rotating the rotating pressure rod to lead an extrusion plate to compress the air bag so as to exhaust internal air, inserting the pipette into a sodium sulfate solution and then reversely rotating the rotating pressure rod to lead the sodium sulfate solution to enter in the pipette, observing the height of liquid in the pipette until the required amount is achieved, and holding a lifting handle so as to lead the pipette to leave away the sodium sulfate solution, until the device completes the working process. The device can safely and reliably draw sodium sulfate solution for experiments, the efficiency is high, the clean working environment can be helpfully maintained, and the physical power consumption of the operating staffs can be reduced.

The invention provides a soil ecological pollution detection device and a soil sampling operation method.The soil ecological pollution detection device comprises a supporting frame, a sampling mechanism and a detection mechanism, the supporting frame comprises an upper supporting plate and a lower supporting plate which are fixedly connected up and down, and the sampling mechanism comprises a sample conveying mechanism and a soil disturbance mechanism; the sample conveying mechanism comprises a conveying cylinder, a first conveying motor and a first rotating shaft, the soil disturbance mechanism comprises a second driving motor, a second rotating shaft and a drill bit, the detection mechanism comprises a V-shaped filter hopper, a soil shifting mechanism, a sample bearing box and a soil detector, and the soil shifting mechanism is used for assisting in shifting soil flowing out of a discharge port into the V-shaped filter hopper. By utilizing the detection device and the operation method, simultaneous sampling at different heights of the same sampling point can be realized, and meanwhile, soil is preliminarily filtered before being detected, so that the soil detection accuracy can be improved.