201results about How to "Guaranteed smoothness" patented technology

The application provides a focusing motor and a camera module. The focusing motor comprises a fixed part, a moving part, a focusing assembly, a magnetic attraction sensing part, a guide part and a position sensor. The fixed part comprises a first support arm and a second support arm connected with each other, and a light passage hole formed between the first support arm and the second support arm. The moving part is arranged in the light passage hole and can move in a preset direction. The magnetic attraction sensing part is arranged in the moving part. The angle between the magnetization direction of the magnetic attraction sensing part and the first direction and the second direction perpendicular to the preset direction is an acute angle. The guide part is arranged on the first support arm and corresponds to the magnetic attraction sensing part. The position sensor is arranged on the second support arm and corresponds to the magnetic attraction sensing part. The position sensor can generate an induction force with the magnetic attraction sensing part, so that the position sensor can sense the moving position of the moving part. The focusing motor can significantly reduce the size of the focusing motor, and can guarantee the guiding stability and the position detection precision required by the automatic focusing function while realizing the miniaturization of the camera module.

The utility model relates to the technical field of insulation board processing, especially to a high -strength insulation board anti -bending performance detection device, including frame, be provided with processing mechanism on the frame and be used for insulation board processing, processing mechanism includes: take and put subassembly, set up on the frame and be used for insulation board taking and placing, feed assembly, including the right table board of fixed right end on the top of frame, the right end inside the frame is equipped with first hydraulic cylinder, and the output of first hydraulic cylinder is fixed with base plate, and the top of four corners of base plate is all fixed with guide rod, and guide rod and right table board penetrate through sliding installation, and the top between four corners's guide rod is fixed with the supporting plate, detection component sets up on the frame and is used for insulation board bending degree detection, through the hydraulic drive four -corner guide rod realizes the steady feed of insulation board, and the cylinder controls detection component intelligent avoidance, and hydraulic loading cooperates sensor accurate measurement anti -bending performance, realizes the full -process automation from feed, taking and placing to detection, ensures the test accuracy and operation efficiency.

This utility model relates to the field of indoor monitoring, specifically to an indoor environmental monitoring and detection device, including a base and a detection device body. The upper surface of the base has multiple mounting holes and a convenient assembly / disassembly mechanism. This mechanism includes an installation component, two disassembly components, and two positioning components. The installation component includes a first mounting seat fixedly connected to the bottom surface of the base, and a second mounting seat slidably connected within the first mounting seat. This utility model, through its installation component, enables rapid installation between the detection device body and the base; through its disassembly components, it enables rapid disassembly of the detection device body; and through its positioning components, it provides precise guidance for the sliding of the second mounting seat, preventing rotation after installation and further improving the stability of the device, ensuring stable operation of the detection sensor.

The application relates to the field of semiconductor process equipment, in particular to a device for large-capacity liquid medicine storage of semiconductor equipment and a liquid medicine supply system. The device comprises a liquid storage tank provided with a liquid storage cavity, the upper portion of the liquid storage cavity is provided with a cleaning cavity in fluid communication with the liquid storage cavity; the internal volume of the cleaning cavity is smaller than that of the liquid storage cavity; a liquid inlet pipe is arranged to introduce liquid medicine into the liquid storage cavity of the liquid storage tank from the outside; a liquid outlet pipe is arranged at the bottom of the liquid storage cavity and connects the liquid storage cavity of the liquid storage tank to a liquid source; a waste pipe is arranged at the top of the cleaning cavity to discharge the liquid medicine bubbles in the cleaning cavity; and a vent pipe is arranged to connect the cleaning cavity of the liquid storage tank with the outside to keep the air pressure in the cleaning cavity of the liquid storage tank consistent with the ambient air pressure. The application improves the separation efficiency of large-capacity liquid medicine and gas, reduces the probability of generating bubbles in the liquid medicine, improves the uniformity of wafer surface coating, and can meet the high-integration equipment layout.

This invention discloses a brain-computer interface (BCI) smart zoom glasses and a visual adaptive adjustment system, relating to the field of smart glasses technology. It includes an EEG signal acquisition module that attaches to the user's head to collect signals, extracts feature vectors after noise reduction, and transmits them to a core control module; a visual environment perception module that collects target and environmental data, generates structured data packets, and transmits them synchronously; a core control module that integrates multi-source data, identifies visual intent, and decides on adjustment parameters; a smart zoom execution module that adjusts the lens focal length and provides closed-loop feedback to calibrate accuracy; a visual adaptive adjustment module that adjusts lens parameters based on the environment and fatigue state; a human-computer interaction module that supports manual operation, status display, and vibration feedback; and a data storage and update module that stores data and iteratively optimizes the model. This invention achieves accurate visual intent recognition through brain-computer interaction; personalized modeling adapts to different user needs, meeting the product development and application requirements of the wearable smart device manufacturing field.

The application discloses a prefabricated railway beam three-wall synchronous line-under construction measurement method, a bk field inner reference net point layout, a beam bottom embedded plate hole group center measurement in a beam manufacturing area, a beam manufacturing area central axis point position calculation, a beam manufacturing area coordinate conversion, a beam manufacturing area three-wall steel bar boundary line lofting, a beam manufacturing area beam top matching point accurate lofting, a stored beam area accurate measurement matching point, a stored beam area central axis point position calculation, a stored beam area coordinate conversion, a stored beam area three-wall contour line lofting and template checking, a three-wall completion line shape measurement, and prefabricated beam erection control.

This utility model relates to the field of copper wire cold welding technology and discloses a multi-directional synchronous pressure device for a copper wire cold welding machine, a welding platform, a welding support arm fixedly installed on one side of the top of the welding platform, and a limiting mechanism provided inside the welding platform; the limiting mechanism includes a sliding bracket, which is slidably connected inside the welding platform, and a hydraulic rod is fixedly installed on one side of the outer wall of the sliding bracket. This utility model, through the design of a moving plate, a fixed frame, a support shaft, a connecting block, a pressure plate, and a limiting ring, achieves a synchronous pressure clamping effect on the copper wire in multiple directions, avoiding rotation or shaking under force, which would affect the accuracy and quality of welding and cause misalignment. At the same time, it can adjust the displacement of the moving plate according to the diameter of the copper wire, so that the pressure plate rotates, which is suitable for pressure fixing copper wires of different diameters, further improving applicability.

This invention discloses a pneumatic hand rehabilitation system and method, comprising: in a model calibration phase, collecting multi-channel surface electromyography (EMG) signals generated by the forearm of the target patient when performing different hand gestures, and constructing coarse and fine classifier training sets; training multiple heterogeneous classification models using the coarse and fine classifier training sets respectively, and selecting the optimal coarse and fine classifiers; in a rehabilitation training phase, collecting multi-channel EMG signals generated by the forearm of the target patient in real time, calling the trained coarse and fine classifiers for two-stage hierarchical decoding, and outputting motion control commands; a pneumatic execution module parsing the motion control commands and driving the air bladder deformation of the pneumatic rehabilitation glove to drive the patient's hand to complete the corresponding rehabilitation movements. This invention can significantly improve individual adaptability, multi-finger recognition accuracy, and control stability under different physiological characteristics of patients and complex fine motor scenarios.

This invention relates to the field of gearbox housing processing technology, and more particularly to a die-casting molding device for automotive gearbox housing processing. The device includes a base on which a die-casting mechanism is mounted for die-casting automotive gearbox housings. The die-casting mechanism includes: a mold assembly comprising a base mounted on the base, a fixed mold fixed to the front end of the base, a movable mold mounted on the base, a push plate slidably installed inside the fixed mold, and a push rod fixed to the front end of the push plate; and a linkage assembly comprising a guide seat fixed to the rear end of the push plate, guide grooves on both the left and right sides of the guide seat, a guide straight groove at the front end of the guide grooves, and sliding rods slidably mounted through both ends of the base. The device achieves sequential linkage between locking and demolding, with unlocking preceding ejection to avoid motion interference. The locking head angle and position are adjustable, offering strong adaptability and high assembly precision. Synchronous driving from both sides ensures stable locking alignment and smooth, reliable operation.

The utility model relates to vehicle energy recovery device technical field especially discloses a hybrid device with power recovery function, including engine, the drive shaft that coordinates with engine and the electric power generation all -in -one that is connected with drive shaft, electric power generation all -in -one is connected with electric energy storage module, still include worm and worm mechanism, shunt hybrid mechanism and transmission mechanism, transmission mechanism linkage shunt hybrid mechanism and worm and worm mechanism parallel operation hybrid mechanism and electric power generation all -in -one, the input of worm and worm mechanism is connected with the output of engine, shunt hybrid mechanism has two shunt input ends that are connected with worm and worm mechanism and electric power generation all -in -one coordination respectively, shunt hybrid mechanism is driven axle and vehicle's wheel system transmission connection, in the process that vehicle decelerates or brakes, the inertia braking moment of wheel system is driven electric power generation all -in -one and generates electricity via shunt hybrid mechanism, and the electric energy that electric power generation all -in -one generates is stored via electric energy storage module.

The utility model relates to commercial service cleaning robot equipment technical field, concretely relates to a cleaning equipment tail door quick detach structure, including rubbish box box body and fixed mounting plate, the fixed mounting plate passes through the through hole cooperation bolt and robot body fixed connection, the other end also passes through bolt and slide rail fixing piece fixed connection, two the slide rail fixing piece between slidingly arranged rubbish box drawer frame are used for controlling rubbish box box body's movement, rubbish box box body can split formula snap -fit fixed in rubbish box drawer frame inside, through using drawer type track structure, can guarantee the smoothness when rubbish box taking and placing, make rubbish box more convenient and labor saving when drawing, configuration pull -on lock board, can realize rubbish box tail door and drawer frame's connection and separation through the pull -on lock board drawing, can take down rubbish box tail door after drawing out rubbish box, improved operation convenience and dismounting efficiency to the convenience of rubbish box when cleaning maintenance, thereby improved rubbish box's convenience when cleaning maintenance.

The application discloses a new valve core applied to a valve, and belongs to the technical field of the valve core. The technical scheme is as follows: a valve core shell is provided with a mounting hole; the valve core shell is provided with a first flow-through port; a valve core rod is movably installed in the mounting hole and is in sealing connection with the valve core shell; a flow-through channel is used for connecting the first flow-through port; a closing structure is arranged on the valve core rod and is used for plugging the first flow-through port; when the flow-through channel corresponds to the first flow-through port of the valve core shell, water flow can pass through the first flow-through port; when the closing structure corresponds to the first flow-through port of the valve core shell, the water flow is blocked from passing through the first flow-through port. The application can make the water flow pass through the valve core and realize the on-off control of the water flow.

A method for enhancing steel surface images based on a regional autonomous strategy belongs to the field of computer vision and image processing technology. The steps are as follows: 1. Image preprocessing: Acquire the original image of the steel surface and convert the input RGB color image to a grayscale image; 2. Defect region detection: Use the Canny edge detection algorithm to perform edge detection on the grayscale image and extract potential defect boundary information; 3. Regional CLAHE enhancement: Based on the region mask generated in step 2, perform contrast-limited adaptive histogram equalization on the defect region and the background region respectively, and set different enhancement parameters; 4. Median filtering; 5. Weighted image fusion: Perform weighted fusion processing on the enhanced image obtained in step 3 and the filtered image obtained in step 4 to obtain the final output image. This invention can improve the overall quality and defect identifiability of steel surface images through the above method.

This utility model discloses a stainless steel plate surface coloring device, including a worktable. Two electric slide rails are symmetrically installed on one side of the top of the worktable. The electric slide rails are connected to two adhesive rollers through their own sliding blocks. A coloring box is installed in the middle of the top of the worktable. The beneficial effects are as follows: Through the design of the electric slide rails and adhesive rollers, the stainless steel plate passes through the adhesive rollers before coloring. The adhesive rollers adhere and clean the dust and impurities on the surface of the stainless steel plate, preventing them from remaining on the surface and ensuring consistent surface smoothness. This effectively guarantees the uniformity of coloring the stainless steel plate. Through the design of the blower and heating rod, after the stainless steel plate undergoes chemical oxidation coloring, the blower can dry excess liquid, and the heating rod design achieves hot air drying of the stainless steel plate, avoiding the problem of yellow spots caused by liquid residue.

The utility model relates to processing equipment technical field, concretely is environmental protection type electrical hybrid power's foaming furnace, including electrical hybrid power's foaming furnace box, the feed end and the discharge end top of foaming furnace box are installed with environmental protection exhaust box, the top surface center of foaming furnace box is installed with negative pressure air bellow. The utility model discloses a plurality of even equidistance arranged transmission roller shafts installed in the foaming chamber can effectively convey the raw material to be foamed, through the environmental protection exhaust box installed in the top of the feed end and the discharge end of foaming furnace box, its top communicates through the exhaust pipe with the negative pressure air bellow of negative pressure fan built -in in the top surface center of foaming furnace box, so that in the foaming process can in time exhaust the waste gas generated etc.

The application discloses a kind of washable water-based textile pigment ink and its preparation method, product, it is related to ink technical field.The washable water-based textile pigment ink provided in the embodiment of the application includes the following components by weight percentage: 15-20% pigment, 25-30% adhesive composite system, 1-2% wetting agent, 2-3% dispersing agent, 0.5-1% thickener, 0.2-0.5% preservative, 1-2% penetrant, 0.1-0.3% pH regulator, 0.1-0.2% defoamer, and the balance of deionized water;Wherein, the adhesive composite system includes: 15-18% polyurethane emulsion, 10-14% modified polyacrylate emulsion and 5-8% silicone modified polyurethane.The synergistic effect of each component in the adhesive composite system forms a stable and high-strength network structure, which improves the adhesion of pigment and fabric, thereby improving the wash fastness and also allowing the printed fabric to remain soft and comfortable.The ink has excellent wash resistance, heat resistance, good fabric hand, and is suitable for digital printing of various fiber fabrics.

This utility model provides a modular tooling fixture mechanism for machining triple eccentric butterfly valve bodies, belonging to the technical field of fixture mechanisms. This modular tooling fixture mechanism for machining triple eccentric butterfly valve bodies includes a floating clamping module and a quick-change flange positioning base plate. The floating clamping module is disposed above the quick-change flange positioning base plate and is used to float and clamp the triple eccentric butterfly valve body placed on the quick-change flange positioning base plate. The quick-change flange positioning base plate is used to position the triple eccentric butterfly valve body and realize overall transfer between multiple processes. The floating clamping module includes a main frame and a pneumatic auxiliary locking assembly. The main frame adopts a three-way eccentric adjustment mechanism, which has a built-in adjustable wedge block, and the adjustable wedge block is connected to a screw. This solves the problems of eccentric deformation, cumulative positioning errors in multiple processes, and poor tooling versatility in the machining of triple eccentric butterfly valve bodies, eliminates repeated clamping errors, and improves accuracy and efficiency.

This utility model discloses a device for applying a light-shielding strip to a bathroom mirror, belonging to the field of adhesive application devices. It includes a base, a bracket slidably connected to the outer wall of the base, an electric push rod mounted on the bracket, and a light-shielding strip reel installed at the end of the electric push rod. Four positioning rods are equidistantly slidably connected circumferentially inside the base. A driving mechanism is installed inside the base to drive the four positioning rods to move synchronously. A hollow plate is connected to the top of the base. By setting the four positioning rods to move synchronously under the action of the driving mechanism, it can quickly adapt to mirrors of different sizes, achieving precise positioning and avoiding errors from manual positioning. The air-guiding mechanism, in conjunction with the ventilation openings on the hollow plate, can generate an adsorption force on the mirror, enhancing the stability of the mirror during placement, preventing the mirror from shifting during the adhesive application process, and ensuring the quality of the adhesive application. The overall structure is compact, integrating positioning, adsorption, and adhesive application functions, improving the integration and efficiency of the device.

The utility model relates to a blanking equipment technical field especially, it is mainly solved the problem of low efficiency, low accuracy of the present technology in the blanking of the blanking bin, including frame, blanking bin body, two guide bin body, two vibration motors, support seat and two turnover doors, the blanking bin body is located on the frame, the bottom of blanking bin body has two discharge ports, two discharge ports are along the horizontal direction interval distribution, the blanking bin body includes the guide department between two discharge ports, two guide bin body is located in the lower part of blanking bin body respectively, each guide bin body includes first side plate, second side plate, third side plate and bottom plate, first side plate, second side plate, third side plate are located in the bottom plate in three edges, so that guide bin body has upper opening and side opening, each upper opening part area is connected with discharge port respectively, each turnover door is hinged with guide bin body respectively, and is distributed in the side opening, bottom plate is inclined distribution.

The utility model discloses a sheet production and processing conveying cleaning device, including the cleaning tank, and the left and right sides of cleaning tank are equipped with the opening and the front and back side inner wall fixedly equipped with washing shower nozzle, the upper end fixedly equipped with the linear slide groove of penetrating its left and right sides of cleaning tank, and the inside sliding of linear slide groove is equipped with two sheet hangers, and the inside of linear slide groove is equipped with the drive mechanism for driving two sheet hangers horizontal movement, and the bottom fixedly equipped with electric push rod of cleaning tank, and the piston end of electric push rod extends to the one end fixedly equipped with the standpipe of cleaning tank inside, and the surface of standpipe is connected and is equipped with a plurality of spray heads of even distribution, and the utility model discloses a linear slide groove, drive mechanism and two sheet hangers, after cleaning, drive mechanism drives two hangers to move, makes the sheet of good cleaning to remove the cleaning tank, and the sheet of waiting for washing enters the cleaning tank, and need not stop to complete the loading and unloading operation, and the continuity of cleaning process has been greatly improved.

This utility model discloses a wastewater treatment dosing device, including a delivery pump. One end of the delivery pump is connected to a speed regulating device, which includes a delivery pipe, a speed regulating sleeve, a matching rod, a matching sleeve, a connecting sleeve, a thrust bearing, a movable sleeve, a speed regulating block, a speed regulating plate, and a speed regulating groove. The matching rod is located inside the speed regulating sleeve, and the matching sleeve is located in the movable sleeve. The connecting sleeve and the movable sleeve are installed on both sides of the thrust bearing. The outer wall of the movable sleeve is threaded to the inner wall of the delivery pipe. The speed regulating block is installed on one side of the speed regulating plate. The speed regulating groove is inclinedly opened inside the delivery pipe. A locking mechanism is provided on the outside of the delivery pipe. The locking mechanism includes a control sleeve, a screw sleeve, a driving wheel, a screw, a driven wheel, a shift block, a fixed block, a shift spring, and a shift sleeve. The screw sleeve is sleeved on the outside of the screw and installed on one side of the driven wheel. The driving wheel is installed on one side of the control sleeve. The shift spring is connected to two adjacent shift blocks. This utility model solves the defects of low drug delivery accuracy and poor stability of the regulating system.

The utility model discloses a gang saw automatic lubricating device relates to steel production equipment technical field, include: guide component, lubrication supply system and trigger mechanism, and guide component includes guide post and guide sleeve, and the outside of guide sleeve is fixedly connected with saw blade driver, lubrication supply system includes oil reservoir, plunger pump and two lubricating oil pipes, and the oil reservoir is installed in the top of saw blade driver to store lubricating oil, and the plunger pump is installed in the top of oil outlet ware, and the oil inlet of plunger pump communicates with oil reservoir, and the oil outlet of plunger pump communicates with lubricating oil pipe to deliver the quantitative lubricating oil to guide sleeve, trigger mechanism is installed on the guide post to when saw blade driver rises to the top set position, trigger mechanism and plunger pump contact pressurization and make plunger pump supply the quantitative hydraulic oil to guide sleeve, simple structure, convenient to use, realizes the automatic lubrication of gang saw guide sleeve under the condition of not introducing the complex electric control system, effectively improves the stability of gang saw equipment operation.

The utility model discloses a windproof drip irrigation tape, including the body of a belt, the inside of body of a belt is equipped with inner lining, and the both sides of body of a belt are equipped with the edge tape, and the top of edge tape is equipped with a plurality of through -holes, and the top of through -hole is provided with the needle cap, and the bottom of needle cap is provided with the protruding block, and the inner wall of through -hole is provided with the plastic needle, and the outer wall of plastic needle is provided with a plurality of barbs, and the top of plastic needle is equipped with the recess, the utility model discloses through setting up the through -hole in the both sides edge tape of drip irrigation tape, cooperate with the plastic needle of needle cap use, can be inserted into the soil of plastic needle through the through -hole and realize steady fixed, further promoted the fixed intensity, effectively resist the impact of strong wind, fundamentally solved the traditional drip irrigation tape easy because of wind force and displace, twist, lead to the problem of watering, topdressing and pest control uneven, avoided the soil covering on drip irrigation tape influence drip path, guaranteed the smoothness of drip irrigation process, eliminated the drip irrigation tape partial pressure damage risk caused by covering soil simultaneously.

The utility model belongs to concrete bubble elimination device technical field, concretely is a kind of concrete vibrating bubble elimination device, including push box, push box one side is fixedly installed with installation box one, installation box one is fixedly installed with transmission assembly, four groups of structure identical lifting damping components are equipped in transmission assembly, and four groups lifting damping components pass through push box, the bottom end of lifting damping component is all fixedly connected with universal wheel, the one side of push box is fixedly installed with two groups of support, provide high frequency and low frequency vibrating by vibrating assembly one and vibrating assembly two respectively, high frequency vibrating can quickly discharge the bubble of concrete surface and shallow layer, make concrete internal structure more dense, low frequency vibrating can be in-depth to concrete deep layer, auxiliary exclusion deep bubble, make concrete fill template every corner, and the mutual cooperation of both, greatly improve the vibrating quality and uniformity of concrete.

This utility model discloses a backrest footrest and a car seat, including a footrest rotatably mounted on the back of the backrest. The bottom of the footrest is rotatably connected to the backrest via a pivot. The footrest is characterized by: a first connecting member at its bottom, the middle of which is rotatably sleeved on the pivot, and the bottom of which is located outside the pivot; a footrest driving unit is also provided inside the backrest, the driving end of which is connected to the bottom of the first connecting member, and the driving end of which is perpendicular to the pivot. The driving end of the footrest driving unit drives the first connecting member to rotate around the pivot, and thus drives the footrest to rotate around the pivot. This utility model extends the lifespan and comfort of the footrest while reducing space occupation.

The utility model discloses a kind of straw enzyme hydrolysis square bin discharging anti-blocking devices, it is related to straw bin technical field, including support frame, the upper surface of support frame is fixedly provided with bin body, the bottom of bin body is provided with anti-blocking mechanism;The anti-blocking mechanism includes square hopper, the square hopper is arranged in the inside of bin body, and the top of square hopper is fixedly connected with rectangular rubber ring between the periphery and bin body inner wall, the anti-blocking mechanism further includes two rotating shaft rods rotationally arranged in bin body. The utility model realizes anti-blocking by multiple structure synergistic effect. The surface of two rotating shaft rods in upper portion is equipped with evenly distributed movable rod, and when rotating, it can stir and loosen the straw above square hopper, to avoid straw to be accumulated and blocked in upper portion;Two crushing rollers in lower portion are reversely rotated, can crush the falling straw, break agglomeration, prevent large straw from blocking discharge passage.

The application discloses a flattening and cutting device for cable bridge plate processing, and particularly relates to the technical field of cable bridge plate cutting, which comprises a mounting structure, a conveying and flattening structure is arranged in the mounting structure, a cleaning structure is arranged above the inside of the mounting structure, the cleaning structure can polish and clean the burrs of the plate cutout simultaneously when the plate is cut, and the metal scraps generated during cutting can be timely sucked and collected, so that a cleaning process is not needed after cutting, the additional processing steps are reduced, the labor amount of workers is reduced, the metal scraps are effectively prevented from remaining on the surface of the plate or the conveying structure, the plate is prevented from being scratched by the remaining scraps during conveying, the processing quality of the plate product is ensured, the plate can be rolled and flattened twice before and after cutting through the conveying and flattening structure, and the local warping and deformation of the plate after cutting is effectively avoided.

This utility model relates to the field of PVC smart card production technology and discloses a polishing and deburring device for PVC smart card production. The device includes a base, a polishing mechanism at the top of the base, and a recycling mechanism at the bottom of the polishing mechanism. The polishing mechanism includes a polishing component and a conveying component. The polishing component is located at the top of the base. In use, when polishing is required to remove burrs from the surface of the PVC smart card, a cylinder drives a clamping plate to clamp the PVC smart card. A hydraulic cylinder then moves the water reservoir and nozzles left and right, achieving stable and precise polishing. The multi-directional first nozzle and the inclined second nozzle can rinse and polish the smart card surface from different angles, effectively removing burrs, improving polishing efficiency and quality, and ensuring the smoothness and gloss of the product surface. The combination of a high-pressure pump and an overflow valve can stably control the water supply pressure and flow rate.

This invention discloses a method and system for designing tunnel smooth blasting charge schemes, relating to the field of tunnel blasting engineering technology. The method includes: collecting and preprocessing basic parameter data required for tunnel smooth blasting design; calculating initial design parameter values ​​for the smooth blasting charge based on smooth blasting design theory and a pre-set parameter calculation model, generating an initial design scheme; inputting the initial design parameter values, cross-sectional geometric parameter data, surrounding rock condition parameter data, explosive parameter data, and historical blasting effect feedback index values ​​into a pre-trained neural network optimization model, outputting optimized smooth blasting charge design parameter values; automatically updating the peripheral hole layout and charge structure in the design scheme based on the optimized design parameter values, generating and outputting the final tunnel smooth blasting charge design scheme. This invention enables intelligent and adaptive design of tunnel smooth blasting charge parameters, improving engineering applicability and molding quality.

The application relates to the field of thyroid tissue sampling technology and discloses a thyroid tissue sampling needle with a negative pressure adsorption function, which comprises a guide stab needle and a hollow needle tube, a mounting block is arranged on the hollow needle tube, a communication hole in communication with the hollow needle tube is arranged on the mounting block, a communication pipe is arranged on the side wall of the mounting block, the communication pipe is in communication with the communication hole and an external negative pressure device, a fixing block is arranged on the top of the mounting block, a fixed magnetic ring is arranged in the fixing block, a fixed magnetic block and a positioning magnetic block are embeddedly arranged on the guide stab needle; when the fixed magnetic block is attracted to the fixed magnetic ring, the guide stab needle is arranged in a posture that the needle tip part penetrates through the needle tip part of the hollow needle tube; when the positioning magnetic block is attracted to the fixed magnetic ring, the guide stab needle is arranged in a posture that the needle tip part moves into the communication hole, so that the communication pipe is in communication with the hollow needle tube through the communication hole; the application has the advantages of coherent operation, guaranteed sample quality, avoided sample pollution and loss.