488results about How to "Improve quality and efficiency" patented technology

The invention relates to the technical field of artificial intelligence, and discloses a code generation method and device, computer equipment and a storage medium in the fields of financial science and technology and medical health. The method comprises the following steps: performing semantic analysis on a code generation request to obtain a request semantic tag and a request keyword, and performing text embedding processing on the code generation request to obtain a request conversion vector; searching at least one candidate code node matched with the request semantic tag from a preset code knowledge graph; screening all the candidate code nodes according to the request conversion vector to obtain a reference code node; performing node expansion processing on all the reference code nodes according to the request keyword to obtain context nodes; determining target prompt information according to the code generation request, the reference code node and the context node; and inputting the target prompt information into a preset large language model to obtain a target code. According to the method, the semantic alignment degree and the code quality are improved, and the availability of the generated code is ensured.

The invention relates to the technical field of bioinformatics, and discloses an iterative feedback type protein targeting molecule intelligent generation method and device, and the method comprises the steps: obtaining molecular structure data, training based on the molecular structure data to obtain a molecular fragment language model, and the molecular fragment language model is used for predicting subsequent molecular fragments according to an input molecular fragment sequence; obtaining an attribute preference data set, and performing alignment fine tuning on the pre-trained molecular fragment language model based on the attribute preference data set to obtain an attribute preference alignment model; and obtaining target structure information of the target protein, taking the attribute preference alignment model as a strategy network, iteratively generating and evaluating candidate molecules through a tree search algorithm under the constraint of the target structure information until a termination condition is met, and outputting the optimized protein targeting molecules. According to the application, excellent pharmacological properties can be taken into account while the protein targeting molecule binding effect is ensured, and the molecule generation quality can be dynamically optimized.

The invention provides a die head lip opening online measurement method, which comprises the following steps of: pre-acquiring propagation velocities of ultrasonic waves in melts at different temperatures through an experiment, and fitting a relation curve between the propagation velocity v2 of the ultrasonic waves in the melts and the temperature T; the temperature T of the melt flowing out of the lip is collected in real time; according to the relation curve, the propagation velocity v2 of the ultrasonic wave corresponding to the current temperature T in the melt is obtained; the ultrasonic transmitting probe is controlled to transmit ultrasonic waves, and the ultrasonic waves sequentially pass through the first wall, the melt and the second wall and are received by the receiving probe; measuring the total propagation time t of the ultrasonic waves transmitted from the ultrasonic transmitting probe to the receiving probe; and calculating the width h of the lip according to a formula. According to the invention, on-line, real-time and high-precision measurement of the opening degree of the lip can be realized.

The utility model provides a kind of in-out boat structure and coating equipment, wherein the in-out boat structure includes lifting drive device, for driving at least two translation drive devices synchronous lifting movement;Translation drive device, for driving the corresponding translation movement piece of each translation drive device synchronous reciprocating translation movement;At least two boat moving assemblies, respectively installed on corresponding translation movement piece, the corresponding support paddle of at least two boat moving assemblies is respectively used to move at least two carriers boat into and out of at least two reaction cavities.The in-out boat structure provided by the utility model can move at least two carriers boat into and out of each group of at least two reaction cavities in the height direction of furnace body synchronously layer by layer, shorten the length of reaction cavity and narrow it under the premise of not reducing production capacity, shorten the cantilever length of support paddle of in-out boat structure adaptively, improve the rigidity of cantilever structure, reduce the scratching of carrier boat caused by cantilever deformation and shaking and the failure rate of coating equipment, and improve the working stability of coating equipment.

The utility model belongs to the technical field of facial mask packaging, particularly relates to an automatic facial mask bag weighing device and a facial mask cotton folding machine, solves the technical problem that defective products cannot be timely and accurately detected and removed in the prior art, and provides the automatic facial mask bag weighing device which comprises an upper weighing machine, a lower weighing machine and a lower weighing machine, comprising an upper feeding belt, an upper weighing assembly, an upper discharging belt and an upper removing mechanism, the upper weighing assembly is used for distinguishing a first finished mask defective bag and a first finished mask qualified bag, and the first finished mask defective bag on the upper discharging belt is removed by the upper removing mechanism; and the lower weighing machine comprises a lower feeding belt, a lower weighing assembly, a lower discharging belt and a lower removing mechanism, the lower weighing assembly is used for distinguishing a second finished mask defective bag and a second finished mask qualified bag, and the second finished mask defective bag on the lower discharging belt is removed by the lower removing mechanism. The automatic weighing device has the advantages that automatic and accurate weighing can be implemented, and defective products are ensured to be removed.

The utility model discloses an egg box gluing and labeling automatic integrated device which comprises a conveying assembly, a bearing assembly, a gluing assembly and a rubberizing assembly, a rubberizing station is arranged on a conveying path of the conveying assembly, the conveying assembly is used for conveying egg boxes to be labeled to the rubberizing station in the first direction, the bearing assembly is arranged on the side of the rubberizing station, and the rubberizing assembly is used for conveying the egg boxes to be labeled to the rubberizing station in the second direction. The bearing assembly is used for bearing a label to be glued; the rubberizing assembly comprises a first driving part and a picking part, the driving end of the first driving part is connected with the picking part, the first driving part is used for driving the picking part to transversely move and ascend and descend so that the picking part can sequentially move to the material taking station, the rubberizing station and the rubberizing station, and the picking part is used for picking or releasing a label; and the gluing assembly is used for gluing the mounting surfaces of the labels picked up by the pick-up piece on the gluing station. According to the automatic gluing and labeling integrated device for the egg boxes, through cooperation of the conveying assembly, the bearing assembly, the gluing assembly and the gluing assembly, automatic labeling of the egg boxes is achieved, and the working efficiency is improved.

This invention discloses a method for manufacturing 3D display glass and its curved display glass, relating to the field of glass manufacturing technology. A conveying preheating box is attached to one side of the top of a multi-stage temperature control frame. Several pressure-equalizing hydraulic cylinders are equidistantly installed on the top of the conveying preheating box. Pressure-limiting fixing frames are attached to the bottom of the pressure-limiting fixing frames. Inlet and outlet electric slide rails are symmetrically installed at the bottom of the pressure-limiting fixing frames. Inlet and outlet sliding frames are installed at the bottom of the inlet and outlet electric slide rails via slide rail seats. A positioning electric slide rail is embedded at one end of the inlet and outlet sliding frame. A shaping top mold is fitted between two clamping fixing frames. This invention utilizes a combination of pneumatic hot bending, gravity hot bending, shaping hot pressing, and edge correction hot pressing. Furthermore, by using slow heating and slow cooling, along with mold control, the shape of the curved glass can be effectively controlled. Simultaneous operation of pretreatment and forming processes reduces the waiting time required during production.

The invention discloses a polyhydroxyalkanoate composition and a preparation method thereof. The polyhydroxyalkanoate composition comprises the following components in parts by mass: 100 parts of polyhydroxyalkanoate; 0.5 to 5 parts of unsaturated D-polylactic acid; 0.5 to 5 parts of poly (L-lactic acid); the preparation method comprises the following steps: S1, carrying out melt blending on the polyhydroxyalkanoate and the unsaturated D-polylactic acid, and enabling the polyhydroxyalkanoate and the unsaturated D-polylactic acid to fully react, so as to obtain an intermediate product; and S2, carrying out melt blending on the intermediate product obtained in the step S1, poly-L-lactic acid and an ester exchange inhibitor to finally obtain the polyhydroxyalkanoate composition with excellent thermal stability, high melt strength and high crystallization speed.

The invention discloses a full-process visual monitoring and intelligent management method for a glass bracket production line, and relates to the technical field of industrial quality control, and the method comprises the steps: carrying out the continuous image collection of all stations of the glass bracket production line through an image collection unit, and constructing a full-process image data sequence; detecting the size of the glass bracket by using the qualified glass bracket size image database, and judging whether the size is abnormal or not; further performing defect detection on the glass bracket with the normal size, and determining whether an abnormal defect exists or not through pixel value difference analysis; and finally, summarizing the glass brackets with abnormal sizes or defects and related information thereof, and generating a visual quality report, so as to quickly position problems and optimize the production process. The comprehensive monitoring and intelligent management of the glass bracket production process are realized, and the production efficiency and the product quality are improved.

The utility model is applicable to the technical field of material preparation, and provides a spray head device for high-temperature alloy atomization powdering, which comprises a spray head body, the nozzle is arranged at the top end of the spray head body, a spray hole is formed in the nozzle, the spray head body is fixedly communicated with a liquid inlet pipe, the two sides of the spray head body are both fixedly communicated with air inlet pipes, the two air inlet pipes are both communicated with the liquid inlet pipe, and a compression cavity is formed in the spray head body; the connecting pipe is arranged at the bottom end of the spray head body; the adjustable fixing mechanism is arranged on the connecting pipe and used for being matched with the spray pipes with different thicknesses; and the cooling mechanism is arranged on the spray head body and is used for cooling the spray head body. According to the spray head device for high-temperature alloy atomization powder preparation, the spray head can be effectively cooled, the atomization efficiency is improved, the powder quality is improved, and the spray head device can be matched with spray pipes with different thicknesses.

The application relates to a thread supply adjustable device and a sewing machine. The thread supply adjustable device comprises a first thread supply and take-up mechanism, a second thread supply and take-up mechanism and a driving mechanism. The first thread supply and take-up mechanism is used for intermittently pushing the lower thread of the sewing machine to control the thread supply amount of the lower thread. The second thread supply and take-up mechanism is independently arranged with the first thread supply and take-up mechanism and is used for intermittently pushing the upper thread of the sewing machine to control the thread supply amount of the upper thread. The driving mechanism is in driving connection with the first thread supply and take-up mechanism and the second thread supply and take-up mechanism, and the driving mechanism can actively provide power to the first thread supply and take-up mechanism and the second thread supply and take-up mechanism. The thread supply adjustable device is not only simple to operate, but also can accurately adjust the thread supply and take-up timing of the lower thread and the upper thread, so that the sewing machine can realize ideal stitch effects in actual production, and the sewing quality and the production efficiency are remarkably improved.

The utility model relates to valve machining technical field, especially a new type valve cover. Including base, annular pipe, reinforcing surface, fixed ring and annular groove, the annular groove sets up in the base body center position, two fixed ring respectively set up on the base body, and two fixed ring respectively are close to base body both ends setting, the annular pipe sets up in the base upward operation surface. Including raw material detection, heating and material preparation, making embryo and forging, intermediate detection, trimming and shaping, cooling and cutting, welding and processing, final detection, cleaning and polishing, equipment maintenance, the utility model has the beneficial effect that: through the close connection of annular pipe and annular groove, the sealing performance of valve cover is promoted, effectively prevents medium leakage, through strict raw material detection and each link quality detection, can effectively improve the quality of valve cover, enhances its sealing property and pressure resistance, reduces the occurrence of product failure and leakage problem.

This invention discloses an automatic welding machine, comprising a first welding station, a second welding station, and a transfer mechanism. The first welding station includes a first support and positioning component and a resistance welding machine. The first support and positioning component is provided with a first electrode, and the first electrode is provided with a movable connection structure for movably connecting a pre-welding mounting plate. The resistance welding machine includes a second electrode, which cooperates with the first electrode to weld the mounting plate to the inner wall of the first end of the side plate. The second welding station includes a second support and positioning component and a laser welding machine, used to weld the top end of the second outward flange to the first end of the first outward flange. This automatic welding machine can realize the automatic welding of beam frames, which is beneficial to improving welding quality and welding efficiency, and reducing labor intensity.

This utility model relates to the field of atomization spray technology, specifically an atomization spray precision control device. The device includes an atomizer with a side-hollow structure. A baffle plate is located inside the atomizer, and a transmission groove is formed within the atomizer. A connecting rod is fixedly connected to the top of the baffle plate. The top of the connecting rod extends into the transmission groove and is fixedly connected to a gear. A threaded rod is rotatably connected inside the transmission groove. A sliding block is threadedly connected to the external thread of the threaded rod, and another sliding block is threadedly connected to its external thread. A rack is fixedly connected to the bottom of the sliding block. A limit rail is fixedly connected to the top of the inner wall of the transmission groove. The advantages of this utility model are that it ensures uniform drug particle size, enabling precise deposition in the respiratory tract and lungs, improving drug absorption efficiency, optimizing drug distribution, avoiding excessively high or low local drug concentrations, enhancing therapeutic effects, and reducing side effects. Compared to traditional devices, it significantly improves operational quality and efficiency.

The utility model discloses a multistage hot air circulation device for titanium concentrate drying, which belongs to the technical field of mineral drying, and is characterized by comprising a working box, the right side of the working box is fixedly connected with a drying mechanism, the left side of the working box is fixedly connected with a circulation mechanism, and the front side of the working box is rotatably connected with a heat insulation door. The drying mechanism feeds hot air from the top and the bottom of the working box through the air inlet pipe and the air expanding hopper, multi-stage hot air heating is achieved, the titanium concentrate can be evenly heated in the working box, the drying uniformity and efficiency are improved, the drying mechanism can be automatically controlled through the PLC, and according to the characteristics and drying requirements of the titanium concentrate, the drying efficiency is improved. The working state of the hot air generator is adjusted, intelligent drying is achieved, the drying quality and the production efficiency are improved, the circulating mechanism can lead out hot air in the working box, the hot air is sent back into the working box after moisture absorption treatment, hot air recycling is achieved, and the energy utilization rate is increased.

The invention provides a dynamic paper stabilizing system and a dynamic paper stabilizing method of a rewinding machine. The dynamic paper stabilizing system comprises a rack, a plurality of groups of core rollers, a plurality of groups of guide rollers, a paper stabilizing mechanism and a controller, wherein the paper stabilizing mechanism is composed of a rolling diameter detection device and an execution assembly, the rolling diameter detection device monitors the diameter change of a raw paper roll in real time, the execution assembly comprises a supporting frame, a driving piece and a paper stabilizing rod, and the controller dynamically adjusts the position of the paper stabilizing rod according to a detection signal to enable the paper stabilizing rod to be close to or away from the paper surface. Therefore, floating and wrinkling of the paper tape in the rewinding process are effectively restrained. By means of the system, automatic paper stabilizing control over the whole process from the full roll to the empty roll of the raw paper roll can be achieved, the rewinding quality and production efficiency are remarkably improved, and the adaptability, stability and automation level of the rewinding machine are greatly improved.

The application discloses a slow wire cutting equipment, which comprises a machine body, a liquid storage pool arranged on the machine body, a moving frame in sliding connection with the machine body, a plurality of guide wheels arranged on the machine body and the moving frame, and a protection assembly. The protection assembly comprises a communication block, a protection column is inserted into the communication block, a through groove is arranged in the center of the column body of the protection column, the through groove penetrates through the protection column, and a second water guide groove is arranged in the lower end surface of the protection column and located between the outer wall of the protection column and the through groove. The slow wire cutting equipment can effectively protect the thin copper wire, avoid the change of the discharge gap between the thin copper wire and the workpiece caused by the oxide skin and carbon residue generated in the workpiece cutting process, ensure the stable discharge state between the thin copper wire and the workpiece, effectively prevent the thin copper wire from being broken due to the change of the discharge gap during the workpiece cutting, avoid the workpiece from being scrapped, and further help to improve the machining quality and the working efficiency.

A welding fixture for soot blowing pipes is disclosed. This fixture solves the problems of cumbersome processing and high defect rate associated with existing soot blowing pipe manufacturing processes. It includes a frame; a support plate mounted on the frame; positioning elements mounted on the support plate for fixing the soot blowing pipe; and an upper template with positioning holes adapted to the air blowing pipe. The upper template has a first position during installation and a second position where the air blowing pipe is pressed down and limited when inserted into the soot blowing pipe. The advantages of this invention are that the positioning elements for fixing and limiting the soot blowing pipe, and the upper template's cooperation with the air blowing pipe for limiting its position, facilitate the welding of the soot blowing pipes and simplify processing. This invention also has the advantages of low manufacturing cost and simple, convenient operation, achieving economical and practical results, and improving product quality and work efficiency.

The application discloses an intelligent imaging generation system and method, which realizes closed-loop control of spraying quality by real-time linkage adjustment of spraying mechanical arm and imaging equipment parameters through a dynamic parameter adjustment module, and combines a defect prediction and optimization decision module and a multi-modal process knowledge base. The system integrates a high-resolution visual sensor, a capacitive thickness detector and a temperature and humidity sensor, fuses multi-source data by using a Kalman filtering algorithm, and dynamically adjusts the speed of the mechanical arm, the nozzle pressure and the imaging gain coefficient. The defect prediction module simulates coating defect morphology based on a physically constrained generative adversarial network and generates a process optimization instruction set through reinforcement learning. The multi-modal process knowledge base stores an associated model of material characteristics, environmental data and defect patterns, supports incremental learning and historical data decay update. Through dynamic parameter collaborative optimization, defect prediction prepositioning and multi-modal data fusion, the spraying quality detection efficiency and coating consistency are improved, and the rework rate is reduced.

The application discloses a high-temperature forming device for quartz glass processing and relates to the technical field of quartz glass processing, which comprises a forming device and a conveying device, wherein the forming device comprises a workbench, a gantry installed on the workbench, a first power source, an upper die and a fixedly installed output end of the first power source. Through cooperation of a driving mechanism and an opening and closing mechanism, the side die of the lower die can be automatically opened, the lateral full-wrapping constraint on the quartz glass is released, the required ejection force for demolding is reduced, the demolding difficulty caused by adhesion is solved, the demolding mechanism realizes vertical ejection and material taking through mechanical linkage, the elastic buffer of the supporting rod is matched, the action of violently overturning the die is abandoned, the scratches and cracks of the quartz glass caused by collision are prevented, the conveying system composed of the inclined plate and the electric roller enables the glass to be smoothly transferred to the conveying device, and the finished product quality and the processing efficiency of the quartz glass are improved.

The utility model discloses a die for processing a battery cover, and belongs to the technical field of battery cover processing. An adjusting assembly is installed on the top face of the bottom plate and comprises a back plate, a clamping block is fixedly connected to one side of the back plate, side plates are fixedly connected to the two ends of the back plate respectively, adjusting grooves are formed in one sides of the side plates, installation grooves are formed in the top ends of the side plates, springs are connected to the top and bottom faces of the inner walls of the installation grooves, and pressing plates are installed at the top ends of the springs. A lower die base assembly is arranged on the adjusting groove in a sliding fit mode and comprises a lower die base body, sliding blocks are arranged on the two sides of the lower die base body, a clamping groove is formed in the bottom face of the lower die base body, positioning pins are welded to the four corners of the top face of the bottom plate respectively, and an upper die base is installed at the top ends of the positioning pins. The adjusting assembly is matched with the lower die base assembly, the lower die base body is replaced and adjusted according to needs, the forming requirements of different battery covers are met, and the applicability of the die is improved.

The utility model relates to the technical field of double-faced adhesive tape pasting, and discloses a double-faced adhesive tape pasting device which comprises a base, the left side of the top of the base is fixedly connected with a first conveying belt, the front end and the rear end of the left side of the base are each fixedly connected with two vertical plates, and the front sides of the two vertical plates are each rotationally connected with a first threaded rod; the rear ends of the two first threaded rods penetrate through the front side vertical plate and are in threaded connection with moving blocks, fixing plates are fixedly connected to the front ends and the rear ends of the right sides of the two moving blocks, supporting plates are fixedly connected to the tops of the fixing plates on the rear sides, and baffles are fixedly connected to the tops of the front sides of the supporting plates. The position of the adhesive tape is adjusted by rotating the threaded rod, the adhesive tape is pulled out of the adhesive tape roll to bypass the first roller, the telescopic rod adjusts the height of the second roller, the second roller rolls on the surface of an object, meanwhile, the adhesive tape pasting position can be adjusted according to the size and the height of the object, the adhesive tape pasting device can adapt to objects of different specifications, and the adhesive tape pasting quality and the working efficiency are effectively improved.

The utility model relates to the technical field of cable tube cutting equipment, and discloses a limiting structure based on a hard polyvinyl chloride cable tube cutting device, which comprises a cutting machine main body, and limiting assemblies for limiting cable tubes with different thicknesses are symmetrically arranged on two sides of the cutting machine main body; by arranging a first limiting plate and a second limiting plate which can rotate and cooperating with a moving column, a rubber column, a pushing plate, a threaded column and other components, cable pipes of different thicknesses can be rapidly and accurately limited and fixed, and the problems that in the prior art, cable pipes of any size cannot be effectively limited, and the limiting and fixing speed is low are solved; and meanwhile, through the arrangement of a lifting assembly and a third limiting plate, the universality and stability of the limiting structure are further improved, it is ensured that the cable pipe can be efficiently and accurately limited in the complex environment of the construction site, and therefore the cutting quality and construction efficiency of the cable pipe are improved.

The application belongs to the technical field of textiles, and particularly relates to a textile equipment for embedding metal wires and a working method thereof, which comprises a machine body, a winding roller arranged at the middle part of the machine body, a cutting assembly arranged above the machine body, wherein the cutting assembly comprises an upper cutter and a lower cutter which are slidably arranged above the winding roller, the upper surface of the upper cutter is provided with a protective piece which is used for isolating the cutting edge of the upper cutter from the silver-plated wire, one side of the cutting assembly is provided with a clamping assembly, the clamping assembly comprises two positioning clamps which are slidably arranged at one side of the upper cutter, and the two positioning clamps are used for clamping one end of the silver-plated wire which is cut off at the same time, and the problem of rebound of the silver-plated wire after suddenly losing the tension is solved by arranging the cutting assembly and the clamping assembly.

The utility model belongs to laser welding technical field especially relates to a kind of laser welding tool, including base, two groups of limiting mechanisms are correspondingly equipped in the both sides of base, and accommodating gap exists between two groups of limiting mechanisms, and driving mechanism for driving two groups of limiting mechanisms to be close to each other and away from each other is equipped on base;The limiting mechanism includes limiting frame and compression member, the lifting plate of being equipped with liftable is set up on the limiting frame, the side of the lifting plate towards accommodating gap is equipped with inclined surface part, the other side is equipped with the sliding portion of the sliding cooperation with limiting frame side wall, the guiding wheel of being horizontally rotatable is equipped below the lifting plate.The laser welding tool can be applicable to the laser welding operation of strip plate piece, and can always stably limit the end of plate piece and the good limiting effect of the place of adhering welding during plate piece welding process, and it is favorable to improve the welding quality and welding efficiency of plate piece.

The utility model relates to the waste cracking technical field, and disclose a kind of waste plastic cracking oil is with oil gas quick separation device, comprising: container, the top of container is provided with outlet pipe, one end of outlet pipe is through container and extends to inside and is fixedly installed with filter screen, outlet pipe is fixedly installed with spiral plate on and located in container, the circumferential wall of container is fixedly installed with inlet pipe, one end of inlet pipe is through container, inlet pipe is located at one side of spiral plate, provide a kind of oil gas separation efficiency is high, cracking oil quality is stable, production efficiency is high and the oil gas quick separation device for waste plastic cracking oil with superior environmental performance, device is through optimization internal structure, oil gas can be quickly and thoroughly separated, to improve the quality and production efficiency of cracking oil, the device also pays attention to environmental performance, ensure that the discharged gas does not contain harmful substances, effectively avoid environmental pollution and health risk of operator.

The utility model provides a lithium battery cap pressure welding device which comprises a workbench, moving blocks are connected to the left side and the right side of the bottom in the workbench in a sliding mode, a driving wheel is fixedly connected to the upper portion of the rear end of the workbench, and a fixed block is movably connected to the interior of the workbench. According to the pressure welding device for the lithium battery cap, by arranging a moving groove, a moving block, a first clamping plate, a driving wheel, a driven wheel, a sliding groove, a sliding block, a fixed block, a second clamping plate and other structures, the moving block achieves transverse movement of the first clamping plate through transmission of a first double-thread screw, clamping of a lithium battery is completed, and the driving wheel and the driven wheel transmit power stably through a transmission belt; a sliding groove, a sliding block and a fixing block are combined and matched with a second double-thread screw, a second clamping plate can clamp the middle of the lithium battery, the first clamping plate and the second clamping plate are in arc design and provided with an anti-skid pad, the appearance of the lithium battery is attached, friction force is enhanced, and the battery is prevented from being damaged and sliding.

The present application relates to sample supernatant transfer equipment technical field, and disclose a built-in filter element pollution prevention device for biological sample processing, including the platform, the top of the platform is fixedly connected with first connecting frame, the top of first connecting frame is fixedly connected with auxiliary assembly, the top of auxiliary assembly is fixedly connected with second connecting frame, the surface of one end of auxiliary assembly is slidably connected with sliding cover, the surface of the other end of auxiliary assembly is fixedly connected with control center. The both sides of the top of auxiliary assembly are fixedly connected with fixture, the inside of auxiliary assembly is provided with pasteur pipette, the rear end surface of auxiliary assembly is fixedly connected with vertical table, the top of pasteur pipette is provided with funnel shape, the bottom of pasteur pipette is provided with conical shape, the inside of the middle part of pasteur pipette is provided with filter element, the material of filter element is provided with polypropylene, polytetrafluoroethylene and nylon mixed material, the device has the advantages of improving the extraction effect of the device on sample supernatant, convenient for users to use and the like.

The transfer trolley comprises a carriage and walking wheels, a mortar storage bin is arranged on the outer side of the bottom of the carriage, transverse conveying wheels and vertical conveying wheels are arranged on the inner side of the bottom of the carriage, and a curbstone discharging opening is formed in the side face of the carriage; the transverse conveying wheels are arranged in the area right facing the discharging opening, and the vertical conveying wheels are evenly distributed in the other areas. The transfer vehicle travels in a manner that the length direction is parallel to the road extension direction, and the curbstone is placed in the carriage in a manner that the length direction is parallel to the length direction of the carriage. Through cooperative arrangement of the curbstone discharging opening and the mortar discharging opening, mortar laying and curbstone placing can be synchronously completed in the vehicle advancing process, continuous transferring and accurate discharging of multiple curbstones are achieved in cooperation with the vertical conveying wheels and the transverse conveying wheels, the curbstones directly fall to mounting points, streamlined operation is formed, and the working efficiency is improved. The labor dependence is obviously reduced, and the paving construction quality and efficiency of the roadside stones are improved.