35 results about "Sample integrity" patented technology

The invention discloses a device and a method for monitoring the integrity of a small-size metal sample in a high-pressure environment. An environment control system; the loading system comprises an electronic testing machine and a connecting rod, and the electronic testing machine loads a small-size metal sample installed in the high-pressure kettle in an electric insulation mode through the connecting rod to achieve stress or strain controlled loading; the electric signal measurement system comprises a constant current source, a current commutation device and a signal acquisition device. The constant current source applies a constant current to the small-size metal sample, the current reversing equipment switches the direction of the constant current at a preset frequency, and the signal acquisition equipment intermittently monitors voltage values at two ends of the small-size metal sample; and determining the integrity change of the small-size metal sample according to the change of the voltage value in the loading process. According to the invention, on-line monitoring of the integrity of the small-size metal sample is realized in a high-pressure environment.

The invention discloses an endometrium sampler, which relates to the technical field of medical instruments and is technically characterized by comprising a protective sleeve, a movable tube, a brush rod, a top bead, bristles and a handle, the protective sleeve and the movable pipe are both of a hollow tubular structure, and the movable pipe is arranged in the protective sleeve and can move in the axial direction of the protective sleeve. The brush rod is arranged in the movable pipe, one end of the brush rod is fixedly connected with the handle, and the other end of the brush rod is fixedly connected with the top bead. The section, close to the top bead, of the brush rod is a brush rod front end; the bristles are attached to the front end of the brush rod and incline towards the top bead, and the top bead is of a semi-surrounding cover-shaped structure. During sampling operation, the handle is rotated to drive the front end of the brush rod to rotate, so that the bristles cover an inverted pear-shaped uterine cavity area; after the bristles finish sampling, the movable pipe is controlled to move towards the top bead, so that the bristles are folded and protected by the movable pipe; the sampling efficiency, the sample integrity and the diagnosis accuracy can be improved.

The utility model discloses a pressing device for a powder sample and a high-purity indium sheet of a glow discharge mass spectrometer, and belongs to the field of glow discharge mass spectrometry in chemical component analysis. The device comprises an external supporting and protecting system, an internal tabletting system and upper and lower pressing dies. The external supporting and protecting system comprises a touch screen, a protective cover, a safety grating, a control box and the like. The internal tabletting system is composed of an equipment base, a fixed stand column, a movable table, an electric push cylinder, a pressure sensor and the like, and the movable table is driven by the electric push cylinder to drive a lower pressing die to move upwards to be matched with a fixed upper pressing die to complete pressing. The device adopts replaceable upper and lower pressing dies and a sample pressing ring, and meets the preparation requirements of samples with different sizes. The device solves the problems that a powder sample is difficult to compact and the thickness of the prepared indium sheet is not uniform, the pressing parameters are controlled in a programmed manner, the prepared sample can be directly tested without demolding, the integrity of the sample and the test accuracy are effectively ensured, the operation is safe, the efficiency is high, and the economical efficiency is good.

The invention relates to the technical field of data processing related to cold-chain logistics and the Internet of Things, and discloses a sample integrity intelligent monitoring and temperature control method based on multi-parameter prediction. The method comprises the following steps: periodically acquiring multi-dimensional parameters such as temperature, illumination, vibration, box opening state, battery remaining capacity and phase change material state; carrying out weighted fusion calculation on the temperature, illumination, vibration and box opening states to obtain a sample integrity index SII (t), wherein the temperature accumulation deviation degree is obtained through time weighted integration; based on the change trend of the SII (t), the residual electric quantity of the battery and the state of the phase change material, predicting residual safe transportation time (RSTT) through a minimum bottleneck principle; and the temperature control power is intelligently adjusted according to the comparison result of the RSTT and the predicted transportation duration, and early warning is triggered. According to the method, the technical upgrade from recording-response to evaluation-prediction-optimization is realized, and the sample integrity evaluation accuracy, the temperature control cruising ability and the early warning timeliness are remarkably improved.

Configurations for a system, method, and device for determining test card status and / or sample integrity are disclosed. Determining test card status and / or sample integrity includes assessing the pressure measurements of a pumping system in a sample analyzer to determine a threshold. The sample integrity may be determined by comparing pressure measurements of the pumping system attached to a test card to a threshold, which may be related to whether the test card is an empty test card or a prefilled test card. The sample integrity may be determined to be intact when the test card is determined to be an empty test card, and the user may be prompted to inject a sample into the test card. The sample integrity may be determined to be compromised when the test card is determined to be a prefilled test card, and the user may be prompted to discard the test card.

The application discloses a FinFET structure slicing analysis method based on FIB and TEM, and relates to the technical field of semiconductor process detection and analysis. In order to solve the problem of the deficiency of traditional detection technology in resolution and accuracy caused by the complexity of the three-dimensional nano structure of the FinFET device, the application realizes high-precision analysis of the FinFET device by optimizing the whole process of sample pretreatment, FIB processing and TEM analysis. The application utilizes the combination of FIB accurate processing and TEM high-resolution imaging to accurately measure the fin structure morphology, multi-layer film thickness and composition distribution. The application reduces sample damage through processes such as PI conductive adhesive treatment and low-energy ion cleaning, and combines a dynamic parameter optimization mechanism to ensure the sample integrity in the processing and detection process. The application introduces three-dimensional reconstruction and structure-performance correlation analysis, which not only can stereoscopically present the structure characteristics of the FinFET, but also can simulate the influence of parameters such as fin pitch and gate coverage length on the device performance.

The utility model relates to the technical field of building material testing, and discloses a mold for waterproof material physical property test sample preparation, which comprises an outer frame, the top of the outer frame is fixedly connected with an air pump, the output end of the air pump is fixedly connected with a telescopic column, the bottom of the telescopic column is fixedly connected with a mounting disc, and the mounting disc is fixedly connected with an air cylinder. A cutting mold is detachably connected to the bottom of the mounting disc, a dismounting mechanism is fixedly connected to the bottom of the mounting disc, a cutting mechanism is fixedly connected to the bottom of the cutting mold, a protection mechanism is fixedly connected to the outer wall of the mounting disc, and a positioning assembly is arranged at the top of the protection mechanism. The outer wall of the protection mechanism is fixedly connected with a buffer assembly. According to the utility model, the effects of ensuring quick replacement of the mold and automatic demolding of the sample in the sample preparation process of the waterproof material physical property test are realized, so that different test requirements are met, the preparation time is greatly shortened, the test efficiency is improved, and the integrity and quality of the sample are ensured.

The utility model provides a kind of hydraulic engineering geological survey sampling device, it is related to hydrogeological engineering survey technical field, including cylinder, by coaxial setting upper sampling cavity, middle sampling cavity and lower sampling cavity constitute three-dimensional sampling space;Negative pressure source, it is communicated to each sampling cavity, directional negative pressure is formed when sampling.The utility model can realize high-precision stratified sampling without cross-contamination, by orthogonal distribution upper, middle and lower water inlet channel, make the water body of different depth in geological survey stationary surface water along independent path into corresponding sampling cavity, completely avoid interlayer mixing from physical structure, ensure stratified data authenticity;The utility model can optimize fluid flow, guarantee sample integrity and representativeness, the horn-shaped water inlet of anti-turbulence cover reduces flow velocity, combined with spiral guide flow channel, convert turbulent flow into stable laminar flow, reduce bubble disturbance and particulate matter settlement, significantly improve the originality of sample, meet high-precision water quality analysis demand.

This utility model discloses a sample storage device for food testing, belonging to the field of food testing. The sample storage device includes a housing; the inner wall of the support plate and the surface of the second limiting clamp are provided with a convenient loading and unloading mechanism; the surface of the top of the constant temperature chamber is provided with an anti-contamination mechanism; and the interior of the holding slot and the inner wall of the door are provided with a high-safety mechanism. This utility model not only improves the convenience and practicality of the sample storage device during use, allowing for air filtration into the housing to maintain sample integrity, but also ensures effective sample storage, preventing contamination and spoilage during sampling. Furthermore, it enables real-time monitoring of the operator's procedures, ensuring the safety of food sample storage.

The utility model relates to a belt conveyor head sampling machine relates to the technical field of bulk material sampling of cement, building material and other industries. In view of the problem that the sample integrity is poor due to material impact splashing in the existing belt conveyor head sampling, the equipment comprises a transmission mechanism, a C-shaped steel plate guide rail and a sampling mechanism, wherein the transmission mechanism realizes linear reciprocating motion by driving the transmission seat through the motor drive screw rod; the sampling mechanism is slidably connected with the inner wall of the guide rail through rollers, and baffle plates are arranged on both sides of the sampling plate; the transmission seat drives the sampling plate to slide in the guide rail through the transmission plate and connecting rod, so that the sampling plate high-speedly crosses the falling material flow of the material discharge port, the baffle plates on both sides synchronously block the transverse splashing and longitudinal overflow of the material, and the sufficient, complete and representative full-section material sample is ensured. The utility model realizes the problem of automatic sampling, significantly improves the sampling accuracy and safety, and is especially suitable for the belt conveyor head sampling of cement mixture and other materials.

The water quality sampling box comprises a box body, a box cover is movably hinged to the outer surface of the box body through a hinge, limiting sleeves which are arranged at equal intervals are fixedly connected to the inner wall of the box cover, a protective foam plate is fixedly connected to the interior of the box body, placing openings which are arranged at equal intervals are formed in the upper surface of the protective foam plate, and the protective foam plate is fixedly connected to the box body. A sampling bottle is arranged in each placing opening, a fixing plate is fixedly connected to the interior of the box body, and a buffer mechanism is arranged on the upper surface of the fixing plate. The protective foam plate is arranged in the box body, the placing opening in the protective foam plate can stably fix the sampling bottle, shaking and collision in the transportation process are effectively prevented, the buffer mechanism adopts a supporting seat supported by a spring, elastic buffering is provided when the sampling box moves or is impacted, the damage risk of the sampling bottle is further reduced, and the integrity of a sample is ensured; the limiting sleeve and the supporting seat are used for dual fixation, so that the sampling bottles are kept in a vertical state in the box and are prevented from toppling or colliding with each other.

The utility model provides a material sampling device, which belongs to the technical field of material sampling and comprises a sampling tube, a driving component and a sample storage component, the sampling tube is composed of a plurality of mutually connected tube sections, and each tube section is formed by sleeving an inner tube and an outer tube; the driving assembly is connected with the end part of the sampling tube and is used for driving the sampling tube to rotate and advance; the sample storage assembly is arranged between the sampling tube and the driving assembly and is used for storing the collected sample so as to prevent the sample from being lost when the sampling device moves; the sampling tube is in through connection with the sample storage assembly, so that a sample collected by the sampling tube directly enters the sample storage assembly; the top end of the sampling pipe is connected with a drill bit; the utility model provides a material sampling device, which can solve the problems that the existing sampling device cannot ensure that a sample only enters a storage component and is not leaked, and the integrity of the sample is difficult to ensure.

The invention relates to the technical field of disease and pest control, and provides a crop disease and pest sample collector which comprises a floating plate, a support is fixedly connected to one side of the floating plate, a bottom plate is fixedly connected to the upper portion of the support, a transfer cabin is fixedly connected to the upper portion of the bottom plate, and a switching frame is rotatably connected to the middle of the transfer cabin. A storage box is arranged at one end of the switching frame; by arranging the floating plate to be matched with the grading baffle structure of the survival cabin, the device can stably float in the paddy field environment to meet the sample collection requirements of aquatic crops such as rice, grading storage can be achieved according to the aquatic adaptability of different pests, and sample damage caused by unified and centralized storage is avoided; the integrity and survival state of the sample are guaranteed, and reliable materials are provided for subsequent identification and analysis.

The application belongs to the technical field of concrete pouring equipment, and particularly relates to a geological condition sampling and detecting device for concrete pile pouring construction, which comprises a sampling device body, a vertical frame is arranged on one side of a moving vehicle, a sampling and processing assembly is arranged on a vertical moving plate, the sampling and processing assembly comprises driving assembly, a material containing assembly and a material taking assembly arranged in sequence from top to bottom, a material stirring assembly is arranged in the material containing assembly, a taking and placing assembly is arranged on the outer side of the fixed end of a telescopic stabilizing frame, the taking and placing assembly comprises a longitudinal moving assembly, the multifunctional matching assembly comprises a clamping and conveying assembly which can be longitudinally moved and adjusted, and a receiving assembly with a screwing function is arranged below the clamping and conveying assembly. The application has the advantages of reasonable design, simple structure, convenient processing, integration of sample sampling process, storage and external conveying process, improvement of sample processing progress, guarantee of sample integrity, guarantee of smooth subsequent detection work and satisfaction of use requirements.

The application relates to the technical field of soil sampling, and discloses a soil sample sampler based on geographic information surveying and mapping services, which comprises a footboard, a sampling port arranged on the footboard, a U-shaped frame arranged on the footboard, a sampling tube arranged in the U-shaped frame, a sampling head arranged at the bottom of the sampling tube, two electric push rods symmetrically arranged at the top of the U-shaped frame, and a falling-prevention component arranged on the sampling tube. The soil sample sampler based on geographic information surveying and mapping services is characterized in that the falling-prevention, plugging and blocking components work together to firmly hold the soil sample in the tube, guarantee the sufficient sample retention, avoid repeated sampling, reduce the workload of field operation, ensure the sample integrity, and meet the core requirement of subsequent detection and analysis. The overall structure is reasonable in design, convenient and efficient in operation, the electric push rod replaces the traditional manpower deep sampling, and the labor intensity of the operation personnel is reduced.

This invention relates to the field of test tube sample management technology, specifically to an automated test tube sample storage and retrieval device. Its storage system includes a storage area and a detachable drive device. The storage area has a main frame with storage areas on both sides and a working area in the middle. Each storage area is equipped with drawer-type storage units, connected to the main frame via guide rails and driven to change positions by the detachable drive device. A liftable batch storage system is installed at the bottom of the main frame, and an external test tube rack with information recognition components is located on one side. The robotic arm has a multi-axis linkage drive shaft structure, clamps, and clamp push rods. The drive shaft structure drives the clamps to move in three-dimensional space, and the robotic arm is also equipped with a vision positioning component. This invention automates test tube storage and retrieval, avoiding the risks and errors of human operation and improving storage and retrieval efficiency. The partitioned and drawer-type storage increases storage capacity and space utilization. Storage and retrieval operations are completed inside the device, reducing the frequency of opening the door of the low-temperature equipment and ensuring sample integrity.

The invention belongs to the technical field of blood clinical laboratory equipment, particularly relates to a blood sample subpackaging anti-pollution device suitable for a clinical laboratory, and aims to solve the problems that in the blood collection and detection process, gloves are easily polluted due to frequent opening and closing of a blood sample bottle cap, pollutants are possibly introduced, the sample integrity and detection accuracy are influenced, and the experiment quality and medical safety are threatened. According to the scheme, the device comprises a base, and a collecting frame is fixedly connected to the upper side of one end of the base. The blood sample subpackaging anti-pollution device suitable for the clinical laboratory has the advantages that the anti-pollution collecting assembly is used for collecting, injecting, detecting and sucking out blood samples in the collecting or detecting process, and a bottle cap does not need to be frequently opened and closed; while the risk that the surface of the glove is contaminated by blood and cross contamination is increased is avoided, potential hazards brought to laboratory biological safety protection are reduced, the integrity of a sample and the accuracy of a detection result are improved, and the experiment quality and medical safety are further guaranteed.

This invention discloses a device and method for monitoring the integrity of small-sized metal samples under high pressure, comprising: an autoclave; an environmental control system; a loading system including an electronic testing machine and a connecting rod, wherein the electronic testing machine loads a small-sized metal sample installed in the autoclave in an electrically insulated manner via the connecting rod, achieving controlled stress or strain loading; and an electrical signal measurement system including a constant current source, a current reversing device, and a signal acquisition device; wherein the constant current source applies a constant current to the small-sized metal sample, the current reversing device switches the direction of the constant current at a preset frequency, and the signal acquisition device intermittently monitors the voltage value across the small-sized metal sample; and the change in the integrity of the small-sized metal sample is determined based on the change in voltage value during the loading process. This invention enables online monitoring of the integrity of small-sized metal samples under high pressure.

The invention discloses an automatic sheep blood sample collecting device, and relates to the technical field of livestock breeding, the automatic sheep blood sample collecting device comprises a blood collecting box and a blood collecting arm, a rotating frame with a mounting groove is arranged in the blood collecting box, and the rotating frame is used for bearing blood collecting tubes; the blood sampling arm comprises a fixing frame and a plurality of hinge frames, the fixing frame is provided with a second circulating belt and a second clamping block, the hinge frames are provided with a first circulating belt and a first clamping block, and the first telescopic rod, the second telescopic rod and the positioning clamp are matched to clamp and move a blood sampling needle; the opening of the top plate corresponds to the blood collection tube and is matched with an infrared positioning sensor and a control system for precise regulation. The device can automatically complete blood taking needle feeding, puncturing, blood taking, sample collecting and continuous operation, manual intervention is not needed, the blood taking efficiency and accuracy are improved, the sample integrity and operation safety are guaranteed, and the device is suitable for large-scale sheep blood collecting scenes.

The invention discloses a geological sampling device for coal geological exploration, and relates to the technical field of coal geological sampling, the geological sampling device comprises a base, the side surface of the base is provided with a notch, the upper surface of the base is fixedly connected with a cross slide rail, the surface of the cross slide rail is slidably connected with a sample storage box, and the geological sampling device also comprises a connecting rod, the side face of the connecting rod is fixedly connected with a supporting plate, and the interior of the supporting plate is fixedly connected with a drilling and backfilling assembly. The device has the advantages that through drilling and backfilling integrated exploration sampling, multi-section drill rod operation is reduced, the convenience of the device is improved, in-situ soil backfilling is achieved through reverse rotation of the backfilling spiral blade and the drill rod, backfilling materials are prevented from being additionally added, uniform backfilling is achieved, the backfilling compactness is remarkably improved, rod moving is not needed after drilling is completed, and the working efficiency is improved. The movable sampling pipe assembly is directly used and matched with the elastic blocking piece to prevent samples from falling off, the sampling resistance is reduced through the air holes, and the integrity and purity of the samples are guaranteed.

The invention relates to the technical field of tumor sampling, and discloses a tumor detection sampling device which comprises a main shell, the main shell is composed of a mounting cover, a front-end sealing plate and a rear-end sealing cover, the front-end sealing plate is fixed to the front end of the mounting cover in a magnetic attraction mode, the rear-end sealing cover is fixed to the rear end of the mounting cover in a magnetic attraction mode, and a needle cannula is arranged in the middle of the front-end sealing plate in a penetrating mode; a sampling needle is movably sleeved with the needle cannula, two sampling grooves are formed in the outer surface, close to the front end, of the sampling needle at intervals in the axial direction, an annular cutting edge is arranged on the inner wall face, close to the front end, of the needle cannula, and a driving rod is arranged in the needle cannula. Synchronous sampling of different depth areas of a tumor through single puncture is achieved, the annular cutting edge on the inner wall of the needle cannula and a small gap between the needle cannula and the sampling needle are matched, tissue in a groove can be accurately cut off, tight wrapping can be formed, and the sample integrity and the detection accuracy are improved.

The invention discloses a sampling device for pesticide pH value detection, and relates to the technical field of pesticide detection sampling, the sampling device comprises a machine body and a pesticide bottle, the machine body comprises a bearing table and a sampling box, the pesticide bottle is horizontally arranged on the upper table top of the bearing table, a mixing assembly and a transmission assembly are arranged in the sampling box, and the mixing assembly comprises a sampling tube and a mixing cylinder; one end of the sampling pipe is connected into the mixing cylinder, a stirrer is installed in a mixing cavity in the mixing cylinder, the other end of the sampling pipe is inserted into the bottom end in the pesticide bottle, the transmission assembly comprises a quantitative ring, one end of the quantitative ring is connected and communicated with the bottom of the mixing cylinder, and a structure combining the spiral tubular quantitative ring and an active temperature control system is designed in the transmission assembly. According to the design, the sample is always kept at the set temperature in the conveying process, the viscosity gradient caused by the pipe wall temperature difference or environmental fluctuation is eliminated, the phenomena of viscosity fingering, sample dispersion or layering and the like are effectively prevented, and the integrity of the sample from the mixing cylinder to the detection cylinder is not damaged.

The invention discloses a traditional Chinese medicinal material adulteration identification method based on feature selection and linear analysis, and relates to the technical field of intelligent identification of traditional Chinese medicinal materials. According to the method, rapid nondestructive detection is realized, the characteristics of high penetrability and low photon energy of terahertz waves are utilized, complex sample pretreatment is not needed, sample integrity is kept, detection efficiency is remarkably improved, accurate quantitative identification is realized, gradient adulterated samples are designed through a system, and high-specificity terahertz fingerprint spectrums are combined, so that the detection accuracy is improved. Accurate identification and distinguishing of adulterant types and adulteration proportions are realized, model robustness and generalization ability are improved, a random forest (RF) feature dimension reduction method is introduced to eliminate spectrum data redundancy, machine learning models of different principles of linear discriminant analysis and neural network classification are fused, a robust classifier is constructed, the problem of small sample overfitting is solved, and the accuracy of the model is improved. And the reliability of the method on samples with different batches and different sources is ensured.

The invention discloses a stratified sampling mineral geological exploration device, and relates to the technical field of geological exploration technologies, the stratified sampling mineral geological exploration device comprises a connecting carriage, and further comprises positioning structures symmetrically arranged on two sides of the connecting carriage and used for preliminary supporting and final anchoring fixation when equipment is in place; the buffering butt joint structure is arranged below the connecting sliding frame and used for buffering axial impact and stably transmitting bit pressure in the drilling process; the tensile sampling structure is arranged on the connecting sliding frame, penetrates through the buffer butt-joint structure and is used for driving the sampling device to perform rotary drilling and axial feeding so as to obtain a layered sample; the stratified sampling mineral geological exploration device is provided with a tensile sampling structure, a transmission rotary disc, a gear ring, a gear and an adjusting screw rod form a transmission chain, rotary drilling and axial multi-stage stretching of a sampling component are synchronous, and the depth is accurately controlled to adapt to stratified sampling; the matched sampling part completes sampling, sealing and pushing, prevents sample mixing and keeps completeness, the parts are in threaded butt joint and are easy to disassemble and assemble, the structure is stable, transmission is reliable, and adaptability is high.

The invention discloses a device and method applied to diffusion visualization and diffusion efficiency evaluation of a regenerant, and the device comprises a transparent visual main body unit, a partition temperature control system, a detachable movable blocking assembly, a double-path independent gravity constant-pressure loading system and a visual observation assembly, a transparent housing base body is provided with a rectangular accommodation cavity with scales, and the rectangular accommodation cavity is divided into a first chamber and a second chamber; the two groups of independent loading assemblies are correspondingly arranged respectively; a transparent medium and a fluorescent direct reading scheme are adopted, the diffusion process of the regenerant is visually observed in real time, traditional slicing and CT scanning are replaced, the steps are simplified, the cost is reduced, and the test efficiency and the data traceability are improved; through gravity loading and piston follow-up compensation, a partition plate dissociation gap is automatically filled, and consistency of test conditions and true data are guaranteed; in combination with medium cooling and curing and the negative pressure coring cutter, in-situ lossless sampling is realized, the sample integrity is ensured, and the stratified analysis positioning precision is improved.

The invention relates to the field of precision optical detection, in particular to an automatic bubble removal and sample introduction device for cavity enhanced Raman spectroscopy, the device comprises an automatic sample introduction unit, a peristaltic pump, an ultrasonic generator and a Raman spectrum detection pool, the automatic sample introduction unit is used for producing a detection sample, the automatic sample introduction unit is connected with the peristaltic pump through a pipeline, and the peristaltic pump is connected with the ultrasonic generator through a pipeline. The peristaltic pump is connected with the Raman spectrum detection pool through a pipeline, the ultrasonic generator is arranged at the bottom of the Raman spectrum detection pool, and the ultrasonic generator is used for removing bubbles of a sample in the Raman spectrum detection pool. An ultrasonic generator is integrated at the bottom of a detection pool of the Raman spectrum detection automatic sampling device, and the ultrasonic generator destroys bubble surface tension by using shock waves generated by a cavitation effect, so that bubbles are gathered and collapsed. The technology realizes non-contact defoaming through physical vibration, does not need chemical additives, effectively maintains the integrity of a sample, can be linked with equipment such as a peristaltic pump and an air pump, meets the automation requirement of a continuous flow system, and finally remarkably improves the detection signal-to-noise ratio, repeatability and data accuracy.

The utility model relates to the technical field of hydrological collection equipment, and discloses a hydrological monitoring collector, which comprises a collection cylinder with an open structure, and a cover plate is arranged at the top opening of the collection cylinder; the drain pipe is fixedly communicated with the lower part of the peripheral surface of the collecting cylinder; a control valve is mounted on the drainage pipe; a plurality of groups of water inlet holes are annularly formed in the top of the peripheral surface of the collecting cylinder at equal intervals, and the water inlet holes are blocked in the sampling, hoisting and transporting processes of the hydrological monitoring collector, so that water sample scattering is effectively reduced, and the water sample collecting efficiency and the sample integrity are guaranteed; besides, the device ensures that the water sample is isolated from the external environment in the sampling process, pollution of suspended particulate matters, microorganisms and the like in the air to the water sample is effectively prevented, the reliability of the sample and the accuracy of a detection result are improved, the use effect of the device is improved due to the characteristics, and the actual use requirement is met.

The utility model provides a kind of roadbed compactness test sample detection drying equipment, including have: pedestal, shell, drying assembly, clamping mechanism, sliding assembly and magnetic attraction limiting component. Sample is clamped by clamping mechanism, sliding assembly drives and reaches the drying assembly directly below by magnetic attraction limiting block limiting, sample is rotated and dried under the driving of motor by drying assembly, water vapor generated by exhaust fan exhaust drying, drying efficiency is fast and sample integrity is high. Operator removes sample, only first sample is removed from shell, then the sample after drying is taken down, far from the drying assembly prone to safety accidents, thereby improving the safety of equipment. Clamping mechanism is detachable design, operator selects different clamping block according to different sample shape, realizes one machine multiuse, saves cost.

The invention provides a rock coring device and method for identifying sample integrity, and relates to the technical field of engineering exploration, the device comprises a main body rack, a coring assembly, a driving assembly, a detection assembly and a control assembly; the coring assembly and the detection assembly are arranged at the upper end of the interior of the main body rack, the detection assembly is installed on the side portion of the coring assembly, and the input end of the coring assembly is connected with the output end of the driving assembly; the driving assembly drives the coring assembly to do lifting motion and rotation in the main body rack; and the control assembly is arranged in the main body rack, is electrically connected with the detection assembly and is used for receiving a detection signal of the detection assembly on the rock coring state of the coring assembly. The coring state can be efficiently, accurately and automatically identified.