68results about How to "Adaptation needs" patented technology

The cervical vertebra tractor comprises a traction frame and a traction rope, a telescopic frame is fixed to the right side of the traction frame, a telescopic rod is movably installed in the telescopic frame, the top end of the telescopic rod is movably connected with a frame rod through a limiting rotating shaft, and fixed pulleys I are installed at the two ends of the frame rod; a guide rod used for fixing the fixed pulley II is further installed on the right side of the telescopic frame. A head traction belt hung on the head can be kept stable through a sliding rod, the situation that the head of a patient swings at will during correction, the traction effect is affected, and the head is kept stable is avoided, tightening or loosening of a traction rope is achieved through winding of adjusting equipment, and the height of the head traction belt is adjusted; therefore, adaptation to heights and requirements of different patients is achieved.

The utility model belongs to the technical field of medical apparatus and instruments, especially relates to a portable low temperature sealing fresh -keeping device for severed finger preservation, box body, the box body is open -ended lower end closed -type structure, the box body still includes the limiting groove for placing the severed finger, the top cover, the bottom cover makes the bottom cover and the top between the box body form low temperature cavity, the through -hole no. 1 is set up on the lateral wall of box body and is connected with low temperature cavity, the top cover includes: the temperature gauge time module is installed in the top cover, the upper sealing ring is installed in the lower end edge of top cover, the water bag and refrigerant medium are placed in the low temperature cavity, the water bag one side is equipped with the easily torn part, is connected with the drawstring on the easily torn part, the drawstring one end passes through the through -hole no. 1 and sets up. The utility model has the beneficial effects that: simple structure is practical, can avoid the frostbite of severed finger, can monitor the preservation temperature in real time and record the time length of preservation, the sealing moisture -proof property is good, can prevent pollution dehydration, and refrigeration is started conveniently and safely, is suitable for the severed finger preservation and the transfer needs.

The invention relates to the technical field of data management, and discloses a medical data secure transmission method and a big data digital signature system, and the method comprises a hierarchical processing step, a privacy enhancement step, a key negotiation step, a segmented transmission step and an audit tracking step. The system comprises a signature preprocessing module, a hierarchical signature module, a privacy purification module, a verification module and a tracing module. According to the method, a risk association map is constructed through hierarchical processing, and accurate identification of data association risks is realized; privacy and availability are balanced through differentiated privacy enhancement, authorization controllability is enhanced in combination with block chain key management, large file transmission integrity and non-repudiation are guaranteed, and whole-course audit is controllable. According to the system, the relevance between the signature and the privacy feature is improved through module design, the integrity and relevance of the signature chain are guaranteed, privacy protection and verifiability are compatible, efficient verification is achieved, the dispute traceability is provided, and pediatric medical data safety is guaranteed in cooperation with the method.

The present application relates to the technical field of privacy security calculation, in particular to a data privacy protection method and system based on secure multi-party calculation, comprising: receiving original privacy data secret sharing shares generated by each data holder, using an improved garbled circuit evaluation algorithm combined with an oblivious transfer protocol and garbled circuit technology to carry out secure calculation on multiple privacy data shares. During algorithm operation, intermediate garbled calculation results matching the privacy data shares are generated, and the intermediate results are subjected to multi-party joint decryption and reconstruction processing to restore the joint calculation results of the original privacy data of each party under the pre-designed calculation function. Finally, the secure multi-party calculation results are distributed to all participating data holders. This method involves data secret sharing shares throughout the operation, avoids leakage of original privacy data in plaintext, strengthens the security protection capability of the multi-party interactive calculation process, and realizes cross-data holder joint operation while ensuring data privacy throughout the process.

The invention provides a display interface module and an LED display system. The LED display system comprises an LED display module, a sending box, an interface card and a display interface module. An interface unit in the display interface module can synchronously receive a power signal and an LVDS signal, and an output unit can synchronously transmit the power signal and a TTL signal, so that compatibility of signal transmission and power transmission is realized, the number of wires and operation steps for field installation are effectively reduced, and human resource investment and installation time consumption are reduced; meanwhile, the signal conversion unit can convert the LVDS signal into a TTL signal, so that the requirement of the LED display module on the TTL signal is effectively met, and the smoothness of signal transmission is ensured; besides, the display interface module comprises a storage unit, the storage unit can be used for storing correction data of the LED display module, an independent correction storage circuit does not need to be additionally arranged on the LED display module, redundant components and circuit design are omitted, hardware cost is reduced, and optimization of a product structure is facilitated.

This utility model relates to the field of workpiece processing technology, and discloses a positioning component and a turning device. The positioning component includes a base plate assembly. At least one workpiece groove is formed on the first side plate of the base plate assembly. The workpiece groove is used for embedding and fixing the first end of the workpiece while exposing the second end for processing. An air supply connector is formed on the base plate assembly, and an air outlet is provided in the workpiece groove. The air supply connector and the air outlet are connected by an air duct. This design combines versatility and safety, achieving reliable workpiece fixation while simplifying the structure, avoiding stress damage during the turning process, and adapting to the load-bearing and turning requirements of workpieces of different shapes. It solves the technical problem that existing fixtures have limited applicability and are prone to workpiece damage during movement.

The invention discloses a method and a device for generating a commodity pool based on a new machine recommendation algorithm of big data. The method comprises the following steps: constructing a basic view through a Spark framework; performing popularity quantitative evaluation through a commodity popularity scoring model, and respectively screening out hot-sell commodities and new commodities; performing data matching through an SQL linked table query operation, and generating an initial candidate commodity set and a quantity target value of each type of commodities; calculating to obtain a comprehensive score through a multi-objective optimization model; partition-level commodity filtering and optimization are carried out through a MapReduce programming model, and an optimized commodity candidate pool is obtained; performing commodity compliance verification according to items of the white list, and based on a forbidden list in the dimension list black list, adding just-needed categories according to scene requirements through reverse connection operation to obtain a final commodity candidate pool; and merging the commodity data in the final commodity candidate pool into a hive table for persistent storage. The problems that in the prior art, consumption behavior recognition is lacked, and the requirement of a special scene cannot be met are solved.

The invention discloses a modular connecting assembly of a combustion furnace sound barrier, and relates to the technical field of sound insulation of long-acting environment-friendly combustion furnaces for oil testing. The assembly comprises a straight face connecting unit used for tightly attaching and connecting the adjacent sound insulation plates of the straight face part, the straight face connecting unit comprises a straight face reducing stud and two straight face lug plates, the two straight face lug plates are arranged in an up-down mirror symmetry mode, and the inner ends of the two straight face lug plates are fixed to the hinged side frame edges of the adjacent sound insulation plates of the straight face part respectively. The straight-face variable-diameter stud comprises a large-diameter section, a variable-diameter section and a small-diameter section which are coaxial, all the sections are in smooth transition connection, in the locking state, the two straight-face lug plates are located and connected to the large-diameter section in a sleeving mode, in the unlocking state, the straight-face lug plate on the lower side is connected to the small-diameter section in a sleeving mode, and the straight-face lug plate on the lower side is located and connected to the small-diameter section in a sleeving mode. And the straight-surface lug plate on the upper side is sleeved on the large-diameter section. The sound insulation barrier is suitable for a foldable and spliced type sound insulation barrier with a multi-face corner enclosure, the sealing performance of the connecting position is high, sound insulation is good, and disassembly and assembly and corner splicing are convenient.

The utility model relates to the technical field of oil fracturing sand processing, disclose a kind of efficient sorting equipment for oil fracturing sand, including shell, the shell left end is fixedly connected with multiple motor one, the motor one drive end is all fixedly connected with protruding roller, the shell inner wall left side is slidably connected with multiple sliding blocks, the sliding block inner wall is connected with screen cloth by buckle assembly, to be used for the disassembly of screen cloth, the shell top is fixedly connected with processing cylinder, the processing cylinder top is fixedly connected with motor two, the motor two drive end is provided with processing assembly, to be used for to crack sand and scatter drying. In the utility model, by rotating knob and pulling card bar, screen cloth can be removed from the equipment, single-person rapid operation can be realized, downtime is greatly shortened, maintenance cost is reduced, screen stability is ensured to improve screening accuracy, and multi-specification screen switching can also be quickly completed, which is suitable for efficient production and flexible demand of oil field.

This invention discloses a short-window gamma-gamma turbulence parameter prediction method for space-to-ground laser communication, belonging to the technical field of space-to-ground laser communication and atmospheric turbulence channel parameter prediction. This method addresses the problems of traditional methods, such as strong dependence on long observation windows, significant degradation in prediction accuracy under short-window scenarios, and insufficient robustness under low signal-to-noise ratio conditions. It establishes a short-window observation model for the space-to-ground optical link and a gamma-gamma channel statistical model, constructs time-dependent short-window training data, and designs a short-window gamma-gamma network. Temporal features are extracted through a convolutional backbone, and a scintillation exponential physical regularization auxiliary head is used to achieve joint parameter prediction under physical constraints, outputting predicted gamma-gamma distributed parameters. This method can achieve high accuracy and good stability in parameter prediction under short observation windows and low signal-to-noise ratio conditions, and can be used for turbulence channel state characterization at the space-to-ground laser communication receiver.

This invention relates to a dynamic power load interval prediction method and system based on long and short time windows, belonging to the field of power load interval prediction. The method includes: acquiring a historical load dataset and dividing it into a training set and a calibration set; inputting the calibration set into a pre-trained MoE model to output load prediction values, determining the upper and lower bounds of the load interval, and calculating the prediction boundary residual sequence; constructing long and short time windows and setting long and short forgetting factors, and calculating long and short boundary weights; obtaining long and short critical prediction boundary residuals based on the target fault tolerance rate and long and short boundary weights; extracting long and short prediction boundary residuals based on the index of the long and short critical prediction boundary residuals, and calculating the global safety margin; obtaining the power load interval based on the global safety margin and the upper and lower bounds of the load interval. This invention can capture the real fluctuation pattern of load data, adaptively adjust the width of the prediction interval, and realize dynamic load interval prediction.

This utility model discloses a miniature ball bearing for a cooling fan, comprising an outer ring, an inner ring, a cage, a dust cover, and rolling elements movably disposed between the outer and inner rings. Both the inner and outer peripheral walls of the outer ring and the inner ring have circumferentially formed grooves for the rolling elements to move. Both ends of the inner peripheral wall of the outer ring have circumferentially formed stepped grooves for installing the dust cover. The connections between the grooves of the inner ring and the outer peripheral wall of the inner ring, and between the grooves of the outer ring and the inner peripheral wall of the outer ring, have chamfered edges. A retaining spring is provided in the stepped groove for an interference fit with the stepped groove. The inner wall of the retaining spring abuts against the outer wall of the dust cover, while the outer peripheral wall of the dust cover has a clearance fit with the inner peripheral wall of the stepped groove. The curvature coefficient of the grooves of the outer ring is greater than that of the grooves of the inner ring. This utility model solves the problems of traditional miniature ball bearings, such as increased bearing ellipticity due to dust cover installation leading to out-of-tolerance bearing ellipticity, and assembly damage during rolling element installation leading to unqualified rolling element vibration during bearing operation.

The present application belongs to the field of geological exploitation drilling sampling technology, and provides a multi-mode two-stage hand-held coring drill, which comprises a driving mechanism, a drill rod and a hand-held handle; the driving mechanism is fixedly connected with the hand-held handle, and the output end of the driving mechanism is connected with the drill rod; the driving mechanism is used for driving the drill rod to perform one or more of rotary motion and up-down reciprocating motion. The basic concept of two-stage independent control of rotation and impact is adopted, the rotation component and the impact component are separated, so that the above two working modes can be realized, and the rotation speed and the impact frequency can be adjusted individually, so that the energy is saved, the efficiency is maximized, and the requirements of different working scenes and parameters are adapted.

This invention discloses an adjustable activation neuron circuit and a multilayer inference acceleration device based on phase-change memory (PCM), relating to the field of micro-nano electronics technology. It includes: a neuron input terminal for receiving data to be activated; a neuron output terminal for outputting data after nonlinear activation processing; an activation parameter adjustment circuit connected to an activation function circuit, which includes: a first transmission gate, a second transmission gate, a third transmission gate, a fourth transmission gate, a PCM, and an operational amplifier. The inverting input terminal of the operational amplifier receives the data signal to be activated, the non-inverting input terminal is grounded, and the output terminal serves as the neuron output terminal. The activation parameter adjustment circuit is used to adjust the resistance state of the PCM through pulse signals, changing the nonlinear relationship between the output voltage and the input current. Based on the physical characteristics of PCM, this invention develops a neuron circuit with continuously adjustable activation functions, improving the data processing capability of neural networks.

The invention discloses application of a nutritional composition containing alpha-hydroxyisocaproic acid in weight management and blood fat improvement, and belongs to the fields of biological medicine manufacturing, biological medicine application and functional food development. The nutritional composition comprises alpha-hydroxyisocaproic acid and at least one second functional nutritional component, and the second functional nutritional component is preferably selected from one or more of the following components: 1) one or more of tea polyphenol and capsaicin; 2) one or more of beta-glucan, inulin and resistant dextrin; 3) one or more of medium chain triglyceride and sn-1, 3 diglyceride; under the condition of the same intake cycle and dosage, the nutritional composition can significantly improve the weight management effect and reduce related indexes of blood fat through a multi-way synergistic effect, and is combined with GLP-1 drugs or sequentially applied to weight management so as to reduce the risk of weight rise after drug withdrawal.

The utility model relates to display equipment technical field especially LED packaging structure and display device, LED packaging structure includes wiring layer, with the LED chip of wiring layer electricity connection, the filling layer that sets up around LED chip, set up in the sapphire layer that LED chip far away from wiring layer one side and LED chip are pasted, LED packaging structure still includes the fluorescent layer that sets up around filling layer and sapphire layer, fluorescent layer sets up around filling layer and sapphire layer, realizes spectrum conversion, when the blue light that LED chip emits irradiates on fluorescent layer, fluorescent layer absorbs part blue light and emits other color light, and the white light that mixes with blue light is obtained to realize MIP white light product, make the light that emits from LED packaging structure more uniform, improve illumination quality and visual comfort.

The present application relates to a kind of cylindrical electrode paste and its preparation method.A kind of cylindrical electrode paste, by mass parts, including 15-20 parts of anthracite main material, 25-40 parts of residual anode, 3-10 parts of graphite fragment, 25-35 parts of coke, 15-30 parts of organic binder, 6-18 parts of bio-based binder. Among them, organic binder includes medium temperature pitch, anthracene oil, beta resin. Among them, bio-based binder includes carbonized hydrophobic composite modified wood bamboo powder, sodium carboxymethyl cellulose. The carbonized hydrophobic composite modified wood bamboo powder of the present application and sodium carboxymethyl cellulose are compounded to form a bio-based binder, which cooperates with the organic binder to ensure the bonding strength, high temperature resistance and electrical conductivity of the cylindrical electrode paste, while realizing the green and low-carbon utilization of biomass, solving the problems of high temperature failure, moisture absorption and easy caking, and many pores of traditional bio-based binder, reducing the resistivity and production cost, and improving the structural density and use stability.

The utility model belongs to acupuncture technical field, concretely relates to a novel acupuncture scald -preventing heating device, including the shell body, the inside bottom dead place fixed installation of shell body is equipped with the mounting rod, the centre of mounting rod is equipped with the movable rod, the movable rod is set up in the telescopic cavity that the centre of installation cylinder opened, the annular cavity that the installation cylinder opened is equipped with the phase change material, the heat -proof ring net of installation cylinder bottom end outside sleeve sets up in the bottom end in -side of outer thread cylinder, the inside of outer shell body is provided with the outer thread cylinder, the outside of outer shell body is equipped with the threaded connection inner thread sleeve, and the inner thread sleeve is shielded to the several air holes that are opened through on the outside of outer shell body, solve traditional moxa stick warm acupuncture, moxa stick combustion speed is difficult to control accurately, this directly leads to the heat that transmits to the acupoint is unstable.

The invention discloses a natural person identity encryption real-name authentication method and system, and relates to the field of identity and data security. The method is based on a'natural person-encryption terminal-authentication server 'closed-loop encryption architecture, an identity identifier capable of directly recognizing a natural person is not collected, and the core comprises five steps of information collection, authentication initiation, identity authentication, dynamic identity password generation, closed-loop verification and result synchronization. The system adopts a three-level distributed architecture and is composed of an encryption terminal and an authentication server, and the encryption terminal and the authentication server cooperate to achieve secret key fragmentation management, encryption communication and auditing tracing. According to the method, the principle of minimum necessary collection is followed, the national secret algorithm, secret key fragment storage and block chain evidence storage technology are combined, identity authentication is unforgeable, uncounterfeitable and traceable, sensitive information leakage is eradicated from the source, compliance cost is reduced, the method is adaptive to multi-field and multi-terminal scenes, related laws and regulations are met, and high safety and practicability are achieved.

The utility model discloses a quick -wearing power supply circuit board relates to power supply circuit board field, the utility model discloses a substrate, circuit board main part, a plurality of support mechanism is supported and installed between the substrate and circuit board main part, the support mechanism includes the support column of longitudinal position adjustment, the surface of substrate and be located at the corner of circuit board main part place setting has the clamping mechanism for limiting the position of circuit board main part, the utility model discloses a clamping mechanism replaces traditional bolt installation, promotes installation efficiency, and the wedge slope cooperation of fixed part and card block realizes the " press -in " fixed of circuit board main part, need not tool operation, reduces the installation time, simultaneously, the multistage card slot on fixed part allows the flexible adjustment of circuit board main part and substrate spacing, adapts to different heat dissipation or mechanical strength demand, through the adjusting screw rod drive support column lifting of support mechanism, through the high -efficient heat dissipation channel formed with the heat dissipation fin, reduces the temperature of circuit board.

The invention discloses an efficient cooling powder feeding nozzle and an inner hole cladding method. The efficient cooling powder feeding nozzle comprises a nozzle body, a laser beam channel is formed in the nozzle body, and a shielding gas channel is arranged outside the laser beam channel; the nozzle body is provided with a plurality of powder feeding pipelines arranged around the laser beam channel, and is characterized in that an inner water cooling chamber is arranged between the laser beam channel and the powder feeding pipelines, and a cooling water inlet and a cooling water outlet are formed in the inner water cooling chamber; cooling water flows through the inner water cooling chamber to cool the outlet area of the laser beam channel. The cooling effect of the powder feeding nozzle is improved, the reliability of the powder feeding nozzle is improved, the bearable laser power upper limit of the powder feeding nozzle is improved, and the miniaturization difficulty can be reduced. In addition, the invention further provides a process method for cladding the inner hole of the thin-wall part, and a high-quality cladding layer can be rapidly obtained.

The utility model discloses a protection type double-stand-column photography bed which comprises a bearing plate, two first assembling grooves are formed in the top of the bearing plate, first assembling sliding blocks are connected into the first assembling grooves in a sliding mode, and a first assembling stand column is fixedly connected between the two first assembling sliding blocks. And two second assembling grooves are formed in the top of the bearing plate, second assembling sliding blocks are slidably connected into the second assembling grooves, and a second assembling stand column is fixedly connected between the two second assembling sliding blocks. The connecting motor drives the connecting belt pulley to rotate, then the connecting belt pulley drives the movable belt pulley to rotate through the belt, and the movable assembly can enable the movable concave part, the movable rotating shaft, the movable bed board and the movable belt pulley to be matched so that the movable belt pulley can drive the movable bed board on the movable rotating shaft to rotate and unfold. The length area of the assembled hollow photography bed is increased, so that the requirements of different patients are met, and the use effect is improved.

The utility model discloses a kind of Chinese cabbage cleaning machines, it is related to food processing technical field, the utility model includes bubble cleaning machine main part, bubble cleaning machine main part backside side is equipped with speed reducer, bubble cleaning machine main part top side is connected with two symmetrical distribution's bearing seat, speed reducer output end is connected with two bearing seats between framework, framework top is fixed with locating seat, locating seat inside is connected with pressing plate by support shaft.The utility model is equipped with the setting of speed reducer, framework and pressing plate, speed reducer can drive and the framework of bearing seat connection autorotation, and then drive pressing plate tail cover framework center of mass revolution;When pressing plate revolution is in water before, it can be correspondingly rotated clockwise downward with the framework axial center under the action of gravity, the buoyancy of cabbage leaf and bubble rising force are overcome by pressing plate weight, cabbage leaf is pressed into water, so that cabbage leaf upper and lower surface can be fully contacted with bubble and water flow, effectively improve cleaning uniformity;Give consideration to cleaning effect and leaf appearance integrity.

The embodiments described herein relate to video editing methods, apparatuses, devices, media, and products. The method includes displaying an editing interface for the first video in response to a first interface element in the details interface of a first video. The editing interface includes at least one option corresponding to at least one video segment in the first video. The method further includes displaying a first video segment corresponding to a first option in response to a second option among the at least one option. And in response to a third interface element in the editing interface, saving a second video, which includes the first video segment. This method can improve the user's video editing experience and help users create more engaging and personalized videos.

This invention relates to a multi-level heat dissipation structure based on TSV heterogeneous integration and its fabrication method, belonging to the field of integrated circuit packaging heat dissipation technology. It includes: a base, a manifold chipset, a stacked chipset, and a heat sink assembly. The base has internal liquid supply channels and liquid return channels, both extending through both sides of the base. The bottom end of the manifold chipset is bonded to the top end of the base and has multiple manifold microchannels inside. The bottom end of the stacked chipset is bonded to the top end of the manifold chipset and has multiple cooling microchannels inside. The bottom end of the heat sink assembly is bonded to the top end of the stacked chipset and has multiple heat dissipation microchannels extending through both sides. This invention utilizes the fact that the inlets and outlets of the manifold microchannels, the inlets and outlets of the cooling microchannels, and the inlets and outlets of the heat dissipation microchannels are connected to the outlets of the liquid supply channels and the inlets of the liquid return channels, respectively, which can significantly shorten the heat dissipation path and achieve independent and efficient heat dissipation.

The invention relates to the technical field of robots, in particular to a humanoid robot motion control learning method, a chip and electronic equipment. According to the technical scheme, environmental parameters are acquired in real time; and generating a current environment feature vector and an initial operation vector. And searching and matching from the cloud motion database to obtain an optimized operation vector. And dynamically correcting the initial operation vector to obtain an optimal operation vector. And sending an instruction corresponding to the optimal operation vector to a driving module of each moving part, and executing a corresponding moving action. And integrating the environment parameters, the environment feature vectors and the optimal operation vectors which are executed successfully, and uploading the integrated environment parameters, the integrated environment feature vectors and the integrated optimal operation vectors. According to the method, the environmental adaptability of the robot is remarkably improved, the motion stability in a complex scene is improved, the learning efficiency is greatly improved, the learning period is shortened, the control precision and safety are enhanced, the operation safety of the robot in the complex environment is improved, the expansibility is high, and the requirements of humanoid robots of different specifications can be met.

This invention discloses a method for detecting abnormal behavior in data transactions based on temporal behavior modeling, belonging to the field of data security technology. The method deconstructs transaction logs into continuous numerical and discrete text features, which are then normalized and semantically embedded to construct a temporal feature sequence. A cascaded temporal convolutional network and a masked multi-head attention encoder are used to extract temporal and global semantic features, outputting high-order semantic vectors and attention weights. The encoder is self-supervised and trained using only normal transaction data with future behavior prediction as the task. During the inference phase, scale diffusion, semantic diffusion, and transaction logic breakage are calculated from the features and weights, and after equal-weighted fusion, compared with a benchmark threshold to determine anomalies. This invention can accurately capture the temporal correlation and semantic patterns of transactions, achieving efficient detection without the need for abnormal samples, thus improving the accuracy and robustness of transaction anomaly identification.

The invention provides a multi-dimensional automatic detection method and system for a special part. The method comprises the following steps: firstly, pre-processing and cleaning the part, moving the pre-processed part to a detection platform, positioning and fixing the upper end surface of the part, probing into a specified position by using a measuring tool to obtain size data, and collecting a maximum excircle image; fitting center coordinates of a center hole of the guide ring and determining the center of the maximum outer circle; calculating the distance between the two centers to judge the coaxiality; collecting a jewel bearing surface image; inputting the jewel bearing surface image into the trained fusion analysis model; if all the three items are qualified, rejecting any one of the three items which is unqualified or cannot be judged, and synchronously filing detection data and images; according to the invention, through mechanical and visual measurement and deep learning, automatic detection, judgment and rejection of unqualified products are realized, and the productivity is improved.

This utility model relates to the field of environmental monitoring auxiliary equipment technology, specifically disclosing an environmental monitoring sample storage and transportation device, including a storage and transportation box, a sealing cover, a locking structure, a connecting plate, and a pull rod. The storage and transportation box has two storage chambers inside, and the inner walls of both storage chambers are hinged with sealing covers. The sealing covers have cavities inside, and each cavity of the sealing cover is equipped with a locking structure. A connecting plate is fixedly connected to one outer surface of the storage and transportation box, and a pull rod is provided at the upper end of the connecting plate. The locking structure achieves automatic locking through the linkage of a sliding block, a guide slide rod, a locking tongue, and a spring. When the spring is in its normal state, it pushes the locking tongue to insert into the lock hole in the storage chamber wall, ensuring that the sealing cover will not be accidentally opened during transportation. The sliding switch design takes into account both convenient operation and anti-accidental touch function. It can be unlocked by simply sliding and automatically resets and locks after being released, solving the problem of unstable locking in traditional devices and improving the safety of sample transportation.

This invention relates to the field of livestock breeding technology, and more particularly to an acidic solid environmental conditioner for pig farms, its preparation method, and its application. By mass percentage, its raw materials consist of the following components: 80%-90% natural minerals, 4%-8% natural acidic extracts, 4%-8% natural organic acids, 0.5%-1% photocatalytic nanomaterials, and 1.5%-3.0% natural compound essential oils; and the sum of the mass percentages of each component is 100%. The advantages of this invention are that it contains natural mineral components and natural active extract components, wherein the natural mineral components are mainly calcium-based bentonite and nano-titanium dioxide; the natural active extract components are mainly phenyl lactic acid, citric acid, and plant extracts; it has antibacterial, dehumidifying, and deodorizing effects; it is safe and non-toxic when applied to pig farm environments, does not induce drug resistance, leaves no residue, is low in cost, has stable performance, and is easy to use. It can significantly reduce the number of bacteria in pig houses, reduce ammonia concentration and humidity, and plays an important role in maintaining a good breeding environment and reducing the incidence of disease in pig herds.