120 results about "Sample contamination" patented technology

The invention relates to a centrifugal micro-fluidic chip for automatic detection of a nano-enzyme test strip and application of the centrifugal micro-fluidic chip. The centrifugal micro-fluidic chip integrates the steps of sample adding, chromatography, color development and the like of the nano-enzyme test strip, and full automation of nano-enzyme experiments on the micro-fluidic chip is realized. Comprising a reaction structure main body, a bottom runner layer, a vertical through hole layer, a pressing layer, a top runner layer and a sealing body. The closed structure of the chip effectively reduces the interference of external environmental factors on the experiment, reduces the risk of sample pollution, and ensures the high reliability of the detection result.

The invention discloses a sample pretreatment device for food processing detection, and relates to the technical field of food detection, the sample pretreatment device comprises a support frame, an annular guide rail, a placement detection hopper box and a detection treatment box body, under the cooperation of a first treatment assembly, a second treatment assembly and a third treatment assembly, each module undertakes different treatment functions, and the detection efficiency is improved. Due to the overall modular arrangement, the device has higher flexibility and expandability, each module can be independently adjusted or replaced according to different detection requirements, manual intervention is reduced, and the sample pretreatment time is greatly shortened, so that the overall detection efficiency is improved, and the requirements of large-scale food processing detection can be met; meanwhile, the risk that the samples are polluted is reduced, the samples can be finely processed according to respective functions, the consistency of the treatment effect is ensured, the manual cleaning workload is reduced, and the risk of cross contamination of the samples is reduced.

The utility model discloses a sampling device for medical examination, which comprises a sampler, a placing base for placing the sampler and a sampling rubber tube arranged at one end of the sampler, the inner wall of the sampler is in sliding connection with a piston, the top of the piston is fixedly connected with a pressing rod penetrating through the top of the sampler, and the top of the pressing rod is provided with a pressing plate. The outer side of the pressing rod is sleeved with a spring, one end of the spring is fixedly connected with the top of the piston, the other end of the spring is fixedly connected with the top of the sampler, the bottom of the sampler is in threaded connection with a connecting sleeve, a connector is arranged at one end of the connecting sleeve, a convex ring is integrally formed on the outer surface of one end of the connector, and a sampling rubber pipe is clamped to one end of the connecting sleeve. According to the utility model, the sampling rubber tube can be stably connected, no leakage in a sample transmission process is ensured, the risk of sample pollution is greatly reduced, cleaning and disinfection are not needed after single sampling, the time and labor cost of a disinfection link are reduced, and the inspection efficiency is improved.

The invention relates to the technical field of intelligent testing equipment, in particular to coke property intelligent testing equipment which comprises a dust removal fan, two high-temperature furnaces, a feeding temporary storage station, a particle temporary storage table, a multi-axis robot and a rotary drum mounting frame. Through the multi-axis robot integrating the double clamping jaws, the integrated operation of tool transferring and particle grabbing is achieved, material transferring in the whole link from feeding, pretreatment to testing can be completed without manual contact with samples, sample pollution, particle damage and operation deviation caused by manual sorting, weighing and transferring are effectively avoided, and the working efficiency is improved. Meanwhile, the labor cost is greatly reduced, and the stability and repeatability of the testing process are improved; by means of an information interaction structure of the feeding tool and the read-write device, a unique identity label is established for each coke sample, full-life-cycle information of the samples from feeding, preprocessing to final test data can be recorded in an associated mode in the whole process, and the problems that omission is prone to occurring and tracing is difficult in traditional manual recording are solved.

The utility model discloses an electron microscope detection sample storing and taking device which comprises a storing and taking platform, the storing and taking platform comprises a platform body, a detection groove and a sample channel, and the sample channel is formed in the middle of the upper surface of the platform body. By arranging the conveying structure and the positioning structure, when a sample to be detected is detected, the sample is placed on the right side of the conveying belt in the sample channel, then the rotating handle is manually rotated anticlockwise, and the conveying roller is rotated by rotating the handle, so that the sample on the upper surface is conveyed in the sample channel through the conveying belt; after the sample is conveyed to the position of the detection groove, the sample is subjected to electron microscope detection, and then the rotating handle is continuously rotated anticlockwise, so that the conveying belt continuously conveys the sample until the sample is taken out through the leftmost side of the sample channel, continuous one-way flowing of the sample in the electron microscope detection process is realized, and sample pollution is effectively avoided; and the detection efficiency and precision are improved.

The invention provides a nuclear magnetic resonance system and method for simulating high-temperature and high-pressure conditions. The nuclear magnetic resonance system for simulating the high-temperature and high-pressure conditions comprises a core rotor module, a temperature control and heat dissipation module, a signal enhancement and detection module and a high-pressure environment module, and the core rotor module is used for solving the problems that a traditional rotor is low in precision, short in service life and poor in adaptability. According to the nuclear magnetic resonance system and method for simulating the high-temperature and high-pressure conditions, the tolerance pressure of a sample cavity is improved, extreme high-pressure scenes such as deep sea and a mantle can be simulated, the sealing life is prolonged, the sample pollution rate is reduced, the detection accuracy is improved, the pressure monitoring delay is shortened, the pressure fluctuation is reduced, and the environmental stability is improved; the deviation of different batches of detection results is reduced to be within 2%, the system has an overpressure automatic pressure relief function, the safety of the system is improved, the system is adaptive to different types of highly corrosive samples, and the detection types are expanded.

The utility model discloses a tomato leaf sampling device which comprises a sampler and a pressing device for the sampler, the sampler is placed on the pressing device, the pressing device comprises a base, a connecting rod, a supporting rod and a pressing rod, the surface of the base is provided with a fixing groove matched with the bottom of the sampler, the bottom of the connecting rod is fixed on the base, and the pressing rod is fixed on the base. One end of the supporting rod is fixed to the top of the connecting rod, a through hole is formed in the supporting rod, a sliding clamping groove is formed in the pressing rod, and one end of the pressing rod is rotationally connected with the supporting rod. According to the utility model, the through hole and the fixing groove are arranged, so that the sampler can be conveniently fixed and limited, the pressing rod and the sliding clamping groove arranged in the pressing rod are arranged, so that a blade sample can be conveniently and quickly cut off by the gland of the sampler and falls into the sampler, the sampler is sealed, and one-time sampling is completed; the device is quick and convenient, avoids sample pollution, can accurately select a sampling position, realizes accurate operation, reduces labor intensity, improves working efficiency, and has very high practical value.

The invention discloses a desktop type test tube plug automatic cover turning device which comprises a machine frame, a bracket, a clamping device and a rotary cover turning device are sequentially installed on the machine frame from bottom to top, the clamping device comprises clamping fingers, a clamping air cylinder for controlling the clamping fingers to move oppositely or oppositely is installed in the machine frame, and the rotary cover turning device is installed on the bracket. And the rotary cover turning device comprises a cover turning arm and a rotary oscillating cylinder for controlling the cover turning arm to rotate. According to the invention, the cylinder is used for driving and controlling to clamp and flip the test tube, compared with a traditional mechanical structure or a complex electric adjusting device, the driving is reliable, the parameter adjustment is convenient, and the flip efficiency is improved. The bracket fixes the test tubes, the height of the bracket is adjustable, and opening of test tube covers of different specifications can be achieved. The whole structure is simple, the automation degree of test tube uncovering can be improved, manual operation is reduced, operators are prevented from making contact with reagents, the sample pollution risk is reduced, and the test tube uncovering device is suitable for biological and chemical laboratory scenes and the like.

The utility model belongs to the field of experimental analysis equipment, particularly relates to a solid sample liquefaction quantitative separation device, and aims to solve the problems of sample characteristic change, low treatment efficiency, high sample pollution risk, insufficient quantitative sample separation accuracy and complex operation flow caused by temperature sensitivity. The device comprises a liquefaction module used for storing a solid sample and carrying out liquefaction treatment, an outlet of the liquefaction module is connected with an inlet of a quantification module, the quantification module is used for carrying out quantitative sampling on the liquefied solid sample, an outlet of the quantification module is connected with an inlet of a sample separation module, and the sample separation module is used for carrying out sample separation on the quantitatively sampled liquid; the control module is respectively connected with and controls the liquefaction module, the quantification module and the sample separation module. According to the utility model, the problem of sample characteristic change caused by temperature sensitivity is effectively solved, the treatment efficiency is improved, the sample pollution risk is reduced, the accuracy of quantitative sample separation is improved, and the operation process is simplified.

This invention discloses a sampling device and method for insulating oil in transformers of high-voltage substations, relating to the field of intelligent operation and maintenance and automated sampling technology for high-voltage power equipment. It includes: a sampling robot comprising a walking chassis, an oil sampling component, and an oil extraction sampling mechanism; a target sampling end mounted on the transformer's oil sample collection box; the oil extraction sampling mechanism being connected to the oil sampling component via a fluid pipeline; the oil sampling component comprising: an oil sampling robotic arm mounted on the walking chassis for driving an end effector to adjust its spatial position; and a sampling docking component located at the end of the oil sampling robotic arm, having an internal fluid transmission channel and being connected to the oil extraction sampling mechanism. It has advantages such as high sampling process safety, high automation, high docking efficiency, strong sealing protection, high standardization of sample collection, and effective reduction of manual operation risks and sample contamination probability.

The utility model discloses food detection vacuumizing sample storage equipment which comprises a storage tank, the storage tank is a cavity shell of a cylindrical structure, a buckle cover is integrally arranged at the top of the storage tank, a discharging port is formed in the bottom of the storage tank and is closed through a valve, a multipurpose connector is arranged on the buckle cover, and the multipurpose connector is connected with the storage tank. The multipurpose connector is connected with a conversion controller; the utility model relates to the technical field of food detection equipment, and in the food detection vacuumizing sample storage equipment, a dynamic airtight plugging technology is adopted to replace a traditional sealing ring, a high-pressure inert gas cylinder is used for driving and controlling an air bag to expand and seal, an electronic barometer and an electromagnetic valve are combined for real-time closed-loop pressure regulation, and compared with a conventional rubber sealing ring, the ageing resistance is improved; the sealing service life is longer, the three-way ball valve type switching controller is arranged to achieve switching of the vacuumizing mode and the feeding mode, the operation efficiency is improved, and compared with a scheme depending on static sealing, the sealing failure risk is reduced, and the sample pollution rate is reduced.

The present application belongs to the technical field of sample pollution evaluation, and discloses a sample cross-contamination evaluation method, device, equipment and medium, comprising: performing quality control on batch sequencing data, and performing mutation site detection and genetic marker typing according to a human reference genome sequence and a site interval file; according to the genetic marker typing result and the site interval file, the number of heterozygous genotype sites is counted and the sample heterozygosity is calculated, according to the sample heterozygosity and a preset threshold, the sample contamination state is determined; according to the copy number estimation of the sample, the allele frequency is diploid standardized correction; based on the allele frequency in the genetic marker typing result and the mutation site detection result, the cross-contamination relationship between each two samples is analyzed by using identification rules to determine the pollution source; the site for calculating the pollution proportion is selected, and the weighted average algorithm is used to calculate the pollution proportion. The sample pollution degree can be accurately estimated and the pollution source sample can be identified.

A sample contamination detection assembly may include an environmental sensor device configured to simultaneously measure two or more of the following in order to determine chemical contamination: humidity, temperature, or volatile organic matter content of one or more samples. The assembly may include a funnel device. The funnel device may include a plurality of side walls defining two or more internal cavities. At least one side wall may include an inlet opening connected to an inlet cavity and a first exhaust opening connected to an exhaust cavity, and the environmental sensor device may be positioned close to the inlet opening and the first exhaust opening. The funnel device may include a rim configured to direct the air from the handler away from the environmental sensor device. The funnel device may include a slit located in at least one side wall, the slit may be configured to direct air from one or more samples to the environmental sensor device.

This application provides a temporary storage device for liquid bagged samples. The storage box is box-shaped with an opening at the top. A slide rail is located at the top of the storage box. The sealing mechanism includes a male sealing rod and a female sealing rod slidably mounted on the slide rail. The male and female sealing rods can slide closer together to clamp the top opening of the liquid bag, or move away from each other to release the clamping force on the top opening of the liquid bag. A tightening mechanism is located between the corresponding male and female sealing rods. This application, through the cooperation of multiple sealing and locking mechanisms, utilizes the male and female sealing rods to clamp the top opening of the liquid bag, forming a uniform and tight clamping force at the bag opening. Because the sealing mechanism can slide along the slide rail, it can be flexibly adjusted according to the width of the liquid bag, ensuring that liquid bags of different sizes can be effectively sealed, avoiding gaps caused by incomplete sealing that allow contaminants to enter, greatly reducing the risk of sample contamination, and ensuring the accuracy of test results.

This utility model relates to the field of food testing equipment technology, and discloses a food testing box for walnut milk production with a scraping structure. The box includes a body, a liquid level window fixedly provided on the surface of the body, a liquid level gauge fixedly provided on one side of the liquid level window, a scraper slidably provided inside the body, a silicone ring engaging with the surface of the scraper, a buckle hinged to the top of the body, and a lid engaging with the top of the body. A retainer is fixedly provided on the surface of the lid to engage with the buckle. The box can store walnut milk samples, and the liquid level can be observed through the liquid level window and gauge. The lid can be engaged with the buckle and retainer, allowing the scraper to be positioned inside the box. The silicone ring seals the scraper within the box, facilitating easy transport of the box, preventing sample spillage, and preventing sample contamination. A support assembly provides support for the box.

The invention relates to a continuous temperature control transmission electron microscope sample rod without a heating coil. The continuous temperature control transmission electron microscope sample rod comprises a rear-end low-temperature Dewar with an inner-outer double-layer structure; the inner end of the sample rod outer rod is connected with the rear-end low-temperature Dewar in a sealing manner, and the outer end of the sample rod outer rod extends outwards; the inner end of the inner rod of the sample rod extends into the rear-end low-temperature Dewar and realizes heat conduction with the rear-end low-temperature Dewar, and the outer end of the inner rod of the sample rod extends out of the outer rod of the sample rod along the axial direction; the sample rod front-end assembly comprises a front-end outer frame and a front-end metal block, the front-end outer frame is connected with the front end of the sample rod outer rod, the front-end metal block is connected with the sample rod inner rod, the front-end outer frame and the front-end metal block are fixed in a non-conductive mode, and a heating chip is fixedly placed on the front-end metal block. Compared with the prior art, a traditional heating coil is omitted, the sample pollution and temperature drift risks are reduced, and the stability, applicability and the like of an in-situ heating experiment of the transmission electron microscope are improved.

Embodiments of the present application provide a sample pollution detection method, device, system and related equipment, the method comprises: obtaining nucleic acid information of a sample; calculating the mutation genotype frequency value BAF of the sample at a preset site; wherein the preset site is multiple, and in a non-polluted sample, the proportion of homozygous sites in the preset site is greater than the first proportion; determining the homozygous site in the preset site according to the BAF of the preset site; calculating the proportion of the homozygous site in the preset site, if the proportion of the homozygous site is less than the first proportion, the sample is a contaminated sample. Embodiments of the present application can simply and directly judge whether the sample is contaminated.

The utility model relates to the technical field of energy-saving material production, in particular to a sample storage and fresh-keeping device for dairy product detection, which comprises a cabinet body, the front end of the cabinet body is movably connected with a sealing mechanism through a hinge, the front end of the sealing mechanism is fixedly connected with a temperature and humidity controller, the rear inner wall of the cabinet body is fixedly connected with a temperature and humidity monitor, and the temperature and humidity monitor is fixedly connected with the cabinet body. The upper inner wall and the lower inner wall of the cabinet body are jointly and fixedly connected with four supporting columns, the outer surfaces of the four supporting columns are jointly and fixedly connected with a storage plate, and the left end and the right end of the storage plate are both fixedly connected with adjusting mechanisms. According to the sample storage and fresh-keeping device for dairy product detection, the sealing mechanism and the adjusting mechanism are arranged, so that the space utilization rate of equipment is increased, samples can be conveniently classified and managed, the working efficiency of operators is improved, meanwhile, the sample storage environment is optimized, the freshness of the samples is kept, and the samples are prevented from being polluted to a certain extent; and the sample safety is ensured.

The utility model relates to the technical field of cryopreservation tube processing equipment, in particular to an eight-channel cryopreservation tube cover opening device which comprises an upper cover opening mechanism, the upper cover opening mechanism comprises a brushless motor and a transmission assembly, a cover removing mechanism is installed at the bottom of the transmission assembly, the cover removing mechanism comprises a lead screw motor, a driving lead screw is installed on an output shaft of the lead screw motor, and the driving lead screw is connected with the brushless motor. A lead screw sliding block is installed on the driving lead screw, lifting rods are installed at the bottoms of the two sides of the lead screw sliding block, and a cover removing plate is installed at the bottoms of the lifting rods. According to the 8-channel cryopreservation tube uncovering device, by integrating the brushless motor, the transmission assembly, the uncovering mechanism and other core components, efficient and automatic uncovering operation of cryopreservation tubes is achieved. According to the device, the cover opening efficiency is remarkably improved, and the sample pollution and damage risks caused by human factors are greatly reduced. The application of the brushless motor ensures the stability and durability of power output, and the precise design of the transmission assembly ensures the accurate transmission and distribution of torque.

This utility model relates to the field of medical device technology, and in particular to a tissue sample container for pathology departments with a drainage function, solving the problem of the lack of convenient and effective drainage methods in the prior art. A tissue sample container for pathology departments with a drainage function includes a cup body and a cup lid threaded to the top of the cup body. A support base is fixedly connected to the bottom of the cup body, and a drainage assembly is arranged inside the support base. The drainage assembly includes a conical barrel, a guide tube, a drainage pipe, a movable rod, a lever, a helical spring, a baffle, and a sealing ring. The conical barrel is fixedly connected to the bottom of the cup body and located inside the support base, and the guide tube is fixedly connected to the bottom of the conical barrel. This utility model allows the baffle and sealing ring to move simultaneously with the movement of the movable rod, enabling liquid to drain from the drainage pipe, effectively improving the convenience and practicality of the drainage operation for staff, and preventing sample contamination during the drainage process.

The utility model relates to the technical field of pipettors, in particular to a pipette tip mechanism. According to the technical scheme, the pipettor comprises a pipettor body and a gun head body movably installed at one end of the pipettor body, the pipettor body is provided with a gun head release button and an abutting pipe, and the pipettor further comprises a flat head arranged at the end, away from the abutting pipe, of the gun head body. Through the design of the gun head connecting pipe, the barb mechanism, the abutting mechanism and other structures, the mechanical locking between the gun head and the pipettor is increased, and the risk that the gun head falls off in the operation process is reduced. And accidents such as liquid splashing or sample pollution in operation can be reduced, and the safety and reliability of the experiment are improved. In addition, the flat head at one end of the gun head body has a larger contact area during purging, so that the liquid is more easily and completely discharged, and the purging efficiency is further improved. Meanwhile, the shearing force on cells can be reduced, and the cell damage is reduced, so that the influence on the cells is reduced.

The invention discloses an insulating safety shoe detection device, relates to the field of safety shoe detection, and effectively solves the problems that the detection site and angle of an existing detection device are limited, a single-point contact type electrode is difficult to cover non-planar areas such as a toe cap cambered surface and a heel, insulating weak points are easy to leak, the shoe type adaptability is poor, a curved surface transition area forms a detection blind area, and the detection efficiency is low. The invention relates to an automatic discharging device for a test sample, which solves the problems of low efficiency and danger in discharging process, long time consumption of manual operation, low efficiency, electric shock and test sample pollution risk and restriction on large-scale application in the prior art, and comprises a base, the top of the base is provided with a bottom plate, the top of the bottom plate is provided with a frame, the outer side of the frame is provided with a shell, and the rear side of the top of the base is provided with a discharging table. A detector is arranged on the front side of the interior of the shell, a sliding table is arranged on the top of the bottom plate, an adjusting assembly is arranged on the side edge of the sliding table, a supporting plate is arranged on the top of the adjusting assembly, the supporting plate is connected with the sliding table, and two air cylinders are arranged on the top of the supporting plate.

The invention belongs to the technical field of biological sample extraction, and particularly relates to a biological sample extraction film chip and an extraction method. The invention provides a biological sample extraction film chip and an extraction method, and aims to solve the problems that a sample is easy to pollute and the sample extraction cost is high in the sample extraction process in the prior art. According to the biological sample extraction film chip provided by the invention, after a sample enters the extraction cavity, cleaning, elution and other processes can be completed in the extraction cavity, so that the extraction process of the sample is completed in the same chip, the sample does not need to flow in different cavities, and the sample is not easy to pollute; and the biological sample extraction film chip has a relatively small volume. According to the biological sample extraction method provided by the invention, adsorption, cleaning and elution of the sample are completed in the extraction cavity, and the sample does not need to flow in a plurality of cavities for multiple times, so that the sample can be prevented from being polluted, and the extraction efficiency of the sample is improved.

The utility model relates to a sample mixing barrel and a sample mixing device, and relates to the field of sample mixing equipment. During use, the inner barrel can be taken out by disassembling the abutting mechanism, after the inner barrel cover is opened, materials can be put into the PE belt to be put into the inner barrel, sealing is conducted after inflation, and the inner barrel cover is screwed down; and the inner barrel is arranged in the outer barrel, the abutting mechanism is installed to abut against the top face of the inner barrel cover, and sample loading is completed. The sample mixing barrel provided by the utility model is convenient to use, during use, the inner barrels are taken out and placed on the platform for sample loading, a plurality of inner barrels can be prepared, samples are loaded during sample mixing, the inner barrels are removed after one sample is mixed, and then another inner barrel is quickly loaded for sample mixing; the sample mixing barrel does not need to be cleaned, and materials cannot be in direct contact with one another during use, so that the risk of sample pollution caused by the fact that the sample mixing barrel is not cleaned is avoided.

The invention relates to an air reverse circulation rock sample conical divider and a method thereof. The divider comprises an upper rotational flow cylinder assembly, an upper gate assembly, a middle sample storage device assembly, a lower gate assembly and a lower division sampler assembly which are sequentially and hermetically connected from top to bottom. The upper rotational flow cylinder assembly achieves efficient gas-solid separation through a tangential inlet and an internal rotational flow structure. The lower division sampler assembly is provided with a rotatable conical cylinder and a proportion-adjustable division disc, so that uniform dispersion and accurate proportion division can be realized. Opening and closing of the upper gate and the lower gate are sequentially controlled in the drilling process, continuous and automatic collection and division of rock debris are achieved, the problems that in a traditional method, samples are polluted, sample division is uneven, and efficiency is low are effectively solved, and the device is particularly suitable for on-site rapid sampling operation of field geological exploration.

The utility model provides a full-automatic DNA extraction device. The full-automatic DNA extraction device comprises a workbench, a consumable plate, a pipetting mechanism, a purification mechanism, a heating mechanism, a separation mechanism, a centrifugal mechanism, a film coating mechanism and a moving mechanism, the consumable plate, the pipetting mechanism, the purifying mechanism, the heating mechanism, the separating mechanism, the film coating mechanism and the moving mechanism are arranged above the workbench, and the centrifugal mechanism is arranged below the workbench; the purification mechanism is arranged on one side of the workbench, the film covering mechanism is correspondingly arranged on the other side of the workbench, and the consumable plate is placed between the purification mechanism and the film covering mechanism; the moving mechanism comprises a first moving unit and a second moving unit; the first moving unit is arranged on the workbench, and the second moving unit is arranged on the first moving unit and is in sliding connection with the workbench through a sliding frame; and the pipetting mechanism is arranged on the second moving unit. According to the method, the sample can be automatically processed in a whole process or a single process, the DNA extraction efficiency is improved, and sample pollution is reduced. And through a special matrix layout design, the space volume is reduced.

The invention discloses a saliva plastic part for drug detection, and belongs to the field of drug detection.The saliva plastic part comprises a first shell, a second shell, a storage cavity and a pressing through hole, the second shell is arranged under the first shell, an acrylic plate is connected to the upper portion of the first shell in a penetrating mode, a sampling mechanism is arranged over the first shell, and the pressing through hole is formed in the lower portion of the first shell. The sampling mechanism is used for collecting saliva of a sampler, introducing a saliva sample into the detection reagent strip and judging a result according to a competitive inhibition method principle; a plurality of groups of suction cups are distributed on the back of the second shell in a rectangular shape, a protection mechanism is arranged in the second shell, and the protection mechanism protects the collected fingerprint sample, so that the situation that the collected fingerprint is damaged by other people, and the checking accuracy of the sample and a sampler in the later period is affected is avoided. According to the invention, a saliva sample collection and fingerprint collection structure is integrated in drug detection, and sealing protection is realized to prevent the sample from being polluted or exchanged.

The invention provides methods of sample identification using germline structural variants to assess sample contamination and sample swap.

The utility model provides environment monitoring sample storage equipment which comprises a storage box, placing frame plates are arranged at the upper end of the interior of the storage box, a sliding sealing plate is slidably arranged in a sliding groove formed in the upper end of the storage box, a handle is arranged at the upper end of the sliding sealing plate, and a plurality of sliding placing frame plates are slidably arranged at the lower end of the interior of the storage box. A limiting locking mechanism used for limiting the sliding sealing plate is arranged on the front side face of the storage box, and a movement driving mechanism used for driving the sliding containing frame plate to move is arranged in the storage box. According to the sample storage equipment for environmental monitoring, the placement plate at the lower end can be moved out of the two sides of the storage box, so that a worker can quickly take samples at the upper end and the lower end for detection when detecting the samples, the sampling time is greatly shortened, the working efficiency is improved, and the risk of sample pollution is reduced.

The invention discloses an integrated multi-granularity sample separation device and a use method, the device comprises an integrated frame cabinet body, a feed inlet, a feeder, a divider, a crushing device, a storage device and other components are integrally arranged in the integrated frame cabinet body from top to bottom according to a material treatment flow, and after coarse impurities are preliminarily removed through the first divider, the first divider is separated from the storage device through the second divider; materials are divided by the second division machine, one part of the materials directly enter the coarse material storage device to be collected, the other part of the materials are refined by the crushing device and then fed into the fine material storage device to be collected, and a unified electric control system is arranged in the device to coordinate and control the sequential operation of all the components. According to the invention, dispersed sample preparation and sample separation processes are integrated in a set of closed system, so that full-process automatic and continuous preparation from original materials to coarse and fine two-stage sample separation samples is realized, sample pollution and loss caused by manual transfer are effectively avoided, and the analysis efficiency and the accuracy and representativeness of results are remarkably improved.