131results about How to "Avoid cumbersome steps" patented technology

The invention discloses a power transmission line foreign matter recognition method and device, electronic equipment and a storage medium. The method comprises the steps of obtaining a to-be-recognized first power transmission line picture and a first cue word used for representing information content needing to be recognized from the first power transmission line picture; wherein the information content comprises the type and position information of the foreign matter; inputting the first power transmission line picture and the corresponding first cue word into a multi-modal model, so that the multi-modal model generates the type and position information of the foreign matter in the first power transmission line picture; the accuracy of foreign matter identification of the power transmission line can be improved.

The invention provides a natural amphiphilic lignin nanoparticle emulsifier for an oil-based drilling fluid as well as a preparation method and application of the natural amphiphilic lignin nanoparticle emulsifier, and belongs to the technical field of oilfield chemical drilling fluids. The preparation method of the emulsifier comprises the following steps: fully dissolving alkali lignin in an organic solvent; filtering, dropwise adding filtrate into deionized water, fully dispersing, and dialyzing; and then carrying out ultrasonic treatment, centrifuging, washing and drying. The emulsifier takes the biomass-based polymer industrial alkali lignin as a raw material, and is green, non-toxic, cheap and easy to obtain; the preparation method is simple, short in period and free of harmful by-products, the organic solvent can be recycled, and the cost is low. The lignin nanoparticles are added into the oil-based drilling fluid as an emulsifier, so that the stability of the oil-based drilling fluid under a high-temperature condition can be remarkably improved; a compact interfacial film can be formed at an oil-water interface, and a three-dimensional network structure with viscoelasticity can be formed in a continuous phase, so that the stability of a water-in-oil emulsion is improved.

The utility model belongs to the technical field of battery acquisition components, and particularly provides an acquisition lead and chip fixing device, which comprises a support plate and a plurality of lead fixing parts, and the plurality of lead fixing parts are mounted on the support plate along the routing path of an acquisition lead; a chip groove is formed in the supporting plate; the edge of the bar piece groove is provided with a buckle used for clamping the bar piece. The bottom of the chip groove is provided with an elastic sheet, and the elastic sheet protrudes out of the bottom surface of the chip groove. The fixing device adopts a special structural design, the fixing effect on the chip is good, and the chip is prevented from falling off due to extrusion; the supporting plate is further provided with a wire fixing piece installed along the routing path of the collection wire, wire harnesses are protected and fixed, damage caused by wire leakage and extrusion is prevented, the supporting plate is provided with a wire locking structure, and the subsequent tedious steps of wire locking in other modes are avoided. Based on the fixing device, the utility model also provides a battery module integrated busbar and a battery module.

The utility model relates to the technical field of sucker rod machining, and particularly discloses a sucker rod two-end continuous machining device which comprises a base, and a front carrier roller, a sliding rail and a rear carrier roller are sequentially arranged on the base from front to back. A sliding table is slidably connected to the sliding rail, a linear module for driving the sliding table to move front and back is arranged on the base, an annular frame is arranged at the top of the sliding block, a rotating ring is rotatably connected into the annular frame, and a rotating mechanism for driving the rotating ring is arranged on the sliding table. A front three-jaw chuck and a rear three-jaw chuck which are coaxially arranged are arranged on the front side and the rear side of the rotating ring; inverted-L-shaped supports are arranged on the base and located on the front side of the front three-jaw chuck and the rear side of the rear three-jaw chuck, a vertical lifting mechanism is arranged at the free end of the top of each inverted-L-shaped support, and the bottom of the movable end of each lifting mechanism is connected with a tool bit used for conducting thread machining on the lead screw. Threads at the two ends of the sucker rod can be continuously machined, carrying operation is reduced, and efficiency is improved.

The utility model discloses a rescue air cushion convenient to carry, including box, air bag pad and movable board, the inside of box is provided with the cavity, and the one side of box is provided with the notched of being linked with the cavity, and the upper and lower both ends of notched inboard all are through the pivot respectively installed with roll axle no.

The invention provides a pre-splitting and fracturing integrated device for hydraulic fracturing top cutting and a using method, the pre-splitting and fracturing integrated device for hydraulic fracturing top cutting comprises a pre-splitting part, the pre-splitting part comprises an adjusting part and an inserting part, the inserting part is used for being inserted into a rock mass to form a pre-splitting crack, the radial size of the adjusting part is variable, and the adjusting part is used for adjusting the radial size of the pre-splitting crack; the adjusting part is used for driving the inserting part to be inserted into the rock mass, the pre-splitting part further comprises a first water pipe, and the first water pipe is used for guiding water into or out of the adjusting part so as to adjust the radial size of the adjusting part; the crack expansion part, the pre-cracking part and the crack expansion part are sequentially distributed, the crack expansion part comprises a packing piece and a grouting pipe, the packing piece is used for being matched with a drill hole to form a packing section at the pre-cracking part, the grouting pipe is communicated with the packing section, and the grouting pipe is used for injecting a medium into the packing section to expand the pre-cracking part. By means of the technical scheme, the problems that in the prior art, after presplitting, a tool of the previous work needs to be removed, then the next work is conducted, the working procedure is tedious, and the top cutting efficiency is low can be solved.

The invention discloses a preparation method of aromatic diether dianhydride, which comprises the following steps: S1, feeding: adding a dihydroxyl monomer, an alkaline compound, a transition metal complex catalyst, an organic solvent and a water diversion agent into a reaction container, and continuously introducing inert gas; s2, water separation: raising the temperature to separate out water in a reaction system; s3, etherification reaction: adding a nitrophthalimide derivative, raising the temperature to carry out etherification reaction, filtering after the reaction is finished, and carrying out reduced pressure distillation on filtrate to remove the solvent, so as to obtain an etherified product; and S4, carrying out hydrolysis ring opening, acidification and dehydration ring formation on the etherification product to prepare the aromatic diether dianhydride. According to the preparation method of the aromatic diether dianhydride, the specific catalyst is introduced in the etherification reaction stage, a high-selectivity catalytic system is formed, generation of by-products can be effectively inhibited, the yield and purity of target etherified products are remarkably improved, tedious steps of etherification and purification are avoided, the total preparation process is simplified, and the preparation method is suitable for industrial production.

The application relates to the technical field of denture grinding, and discloses a denture grinding device which comprises a grinding assembly, a water tank and a water outlet docking device. The grinding assembly is used for grinding a denture; the water tank is connected with the grinding assembly through a water channel; the water outlet docking device is arranged on the water channel and connected with the water tank, and comprises a water outlet channel and a spherical body arranged in the water outlet channel and capable of linearly sliding in a water outlet direction. When the spherical body is located at an initial position, the water outlet docking device is in an unpropelled state, and the spherical body prevents water in the water tank from flowing out of the water outlet channel; when the spherical body linearly slides away from the initial position, the water outlet docking device is in a propelled state, the water in the water tank can flow out of the water outlet channel, and the spherical body is subjected to an elastic force which makes the spherical body return to at least the initial position. Compared with a plane seal, the spherical body is more suitable for water quality changes, and even if there is slight ceramic dust, the soft property of the spherical body can push the dust out and tightly block the water outlet during the sliding process, so that the sealing reliability is ensured.

The utility model discloses a ventilation and filtration integrated shutter which comprises a window frame, two sets of ventilation components are arranged in the window frame, each ventilation component comprises a plurality of V-shaped blades, a dust filtration assembly is arranged in the window frame and comprises two filter screens, and a plurality of drain holes are formed in the bottom of the window frame. Mounting plates are mounted on the side walls of the periphery of the window frame, sliding openings are formed in the surfaces of the mounting plates, sliding plates are arranged in the sliding openings in a sliding mode, threaded grooves are formed in one ends of the sliding plates, and threaded rods are mounted in the threaded grooves in a threaded mode. The window has the advantages that the V-shaped blades can enhance the effect of preventing rainwater and sand dust particles from entering a room, part of the rainwater and the sand dust particles passing through the blades can be discharged from the drain holes, the filter screen can filter and adsorb dust and dust in air, the window frame can be quickly mounted and dismounted through cooperation of the threaded rod and the sliding plate, and the window is convenient to mount and dismount. And the device is suitable for air inlets with different sizes.

The utility model discloses a kind of cleaning devices of evaporation boat deposits, belong to evaporation boat cleaning technical field, comprising: base, the top of the base is equipped with portal frame, the top of the portal frame is equipped with U-shaped plate by adjusting assembly, the bottom of the U-shaped plate is equipped with the cleaning assembly for the evaporation boat placing groove side wall and bottom cleaning, the sidewall of the portal frame is equipped with the collection mechanism for the evaporation boat placing groove inside deposit collection after being cleaned conveniently. The device integrates cleaning and collection function, without additional independent collection equipment, avoid the tedious steps of artificial transfer deposit after cleaning, without manual operation, greatly improve overall cleaning efficiency, and can realize stable cleaning to the space of evaporation boat, will not cause evaporation boat boat surface uneven even damage, ensure the temperature consistency of evaporation boat to prevent splashing, while portal frame structure can stably support adjusting assembly and cleaning assembly, ensure that equipment runs stably during cleaning process.

The application relates to the technical field of control devices, in particular to an elevator multi-end operating box permission linkage emergency opening control device, which comprises a touch screen and an L-shaped groove, a dismounting mechanism with mounting assembly positioning function is arranged on the touch screen, the dismounting mechanism comprises a slot plate and a plug-in column, the plug-in column is inserted into the slot plate, and an adsorption mechanism with a hiding function is arranged on the L-shaped groove. The touch screen is first clamped into the touch screen slot, the plug-in column is aligned with the two slot plates at the top and is inserted downwards, the mounting assembly is sequentially passed through the slot and the two slot plates at the bottom under the action of gravity, and the magnet is adsorbed to the iron block, so that the touch screen can be quickly installed, the trouble and complicated steps of positioning the touch screen by means of auxiliary tools during inlaid installation of the touch screen are avoided, meanwhile, the touch screen is convenient to quickly dismount, and thus the touch screen is convenient to overhaul and replace.

This utility model provides a universal rapid inspection tool for the center distance of drilled curved holes, relating to the field of machining inspection technology. It includes: a base plate; a base is mounted on the base plate by screws; a partition plate is mounted on the upper end of the base plate; a through groove is provided on the partition plate; a seat plate is fixed to the lower end of the partition plate; a movable plate that can move back and forth is installed in the through groove of the partition plate; a fixed seat is fixed on the movable plate; a first hydraulic rod is fixedly mounted on the fixed seat; the piston rod of the first hydraulic rod is fixedly connected to the seat plate; a sliding plate that can slide back and forth is mounted on the partition plate; the movable plate is connected to the right side of the sliding plate by bolts; and a support is fixed on the partition plate. This utility model significantly improves inspection efficiency and accuracy through innovative design. The hydraulically driven movable plate and lifting plate achieve rapid positioning, and with real-time readings from a dial indicator, the inspection time for a single piece is shortened to within 30 seconds, improving efficiency by 5-10 times compared to traditional coordinate measuring machines. The standardized process is suitable for online inspection on production lines.

The invention discloses automatic assembling equipment for an air conditioner liquid separator. The automatic assembling equipment aims at improving the assembling precision and efficiency. Comprising a mounting base, a rotating disc and a fixed disc which are concentrically arranged, the rotating disc is rotatably mounted on the mounting base and is provided with uniformly distributed positioning assemblies, and the fixed disc is provided with a plurality of groups of uniformly distributed assembly stations. The equipment further comprises multiple sets of assembling assemblies assembled on the fixing disc, and specifically comprises an assembling base, a lifting mechanism, a reversing mechanism, a clamping mechanism and two sets of driving mechanisms. And the lifting and reversing mechanism is in transmission connection with the assembly seat and drives the seat body to lift and rotate. The two clamping mechanisms are symmetrically arranged, the folding and unfolding postures of the clamping mechanisms are adjusted through the driving mechanism A, and the driving mechanism B drives the clamping mechanisms to rotate. In addition, the power part is connected with the rotating disc and the reversing mechanism, and necessary driving power is provided. According to the equipment, high automation of the assembling process of the air conditioner liquid separator is achieved, the assembling work can be accurately and efficiently completed, and the production efficiency and the assembling quality are greatly improved.

The utility model belongs to the technical field of insulating board, specifically a kind of high-strength insulating plastic insulating board, including insulating board body, the insulating board body lateral wall is fixedly connected with lug, the insulating board body is distantly located lug lateral wall and is equipped with recess, lug and recess middle part are equipped with multiple groups of jack, and symmetrically set, the top of the insulating board body close to recess is detachably installed with connecting plate, the connecting plate bottom is fixedly connected with plug rod, this step is equipped with the setting of insulating board body, lug, recess, connecting plate, plug rod, ceramic plate and locking assembly, and high-strength insulating plastic insulating board structure is formed, the function of the multiple insulating board body quick splicing is realized, the cumbersome step of needing to screw bolt fixed when the multiple insulating board body is spliced is solved, the convenience when insulating board body splicing is improved, the speed when insulating board body splicing is improved, the step of insulating board body splicing is simplified.

The utility model relates to a detonator manufacturing technique field especially can be used to the special fixture of detonator card waist, card mouth simultaneously, including the fixture main part, the fixture main part includes the sleeve, the inside of sleeve is established and has the inner hole, the top of sleeve evenly distributed has the claw, the shape of sleeve is cylindrical, the top of the inner wall of claw all is provided with the card mouth tooth petal, the bottom of the inner wall of claw all is provided with the card waist tooth petal, the whole of inner hole penetrates sleeve, the bottom of sleeve inner wall is established and has the internal thread, the bottom of claw all is connected with the top of sleeve fixedly, the overall structural shape of claw is conical, the length of card waist tooth petal is greater than the length of card mouth tooth petal, the circle of inner hole is as the center and evenly distributes in the top of sleeve in the radial pattern for the claw, and the production procedure of card waist and card mouth can be completed on the same equipment, simplifies the procedure of detonator manufacturing, improves production efficiency, and reduces production cost.

The utility model relates to the technical field of coating, and discloses a coating roller structure for improving the uniformity of wet tissues, which comprises a workbench, the inner wall of the workbench is rotatably connected with a coating roller, the inner wall of the workbench is fixedly connected with a connecting block, the inner wall of the workbench is rotatably connected with a material receiving roller, and the material receiving roller is fixedly connected with the connecting block. The inner wall of the connecting block penetrates through and is slidably connected with a movable spray head, the inner wall of the connecting block is fixedly connected with a fixed spray head, the outer wall of the movable spray head is hinged to a rotating rod through a hinge rod, the inner wall of the connecting block is rotatably connected with a gear, and the outer wall of the gear is meshed with a rack. According to the wet tissue spraying device, the rectangular block is moved through separation and superposition of the insertion block and the notch of the connecting block, the rectangular block drives the movable sprayers to move left and right, the distance between the movable sprayers can be rapidly adjusted through cooperation of the hinge rod and the rotating rod, the sprayers are made to adapt to wet tissues of different specifications, and the applicability of the device is further improved.

The invention discloses a drying device for processing orchid-scented tea, which belongs to the technical field of tea processing and comprises a drying box. At least one group of placing and drying mechanisms is arranged inside the drying box. The placing and drying mechanisms comprise a placing plate fixed on the inner wall of the drying box. The placing and drying mechanism arranged in the invention first pushes a first push plate through a first cylinder, so that the orchid-scented tea falling from a feed hopper to a second filter screen is spread on the second filter screen, thereby improving the drying efficiency and avoiding the drawbacks of the orchid-scented tea piling up and uneven drying. At the same time, the orchid-scented tea is spread on the placing plate when flipped, so that more orchid-scented tea at the bottom is flipped to the upper surface, thereby increasing the drying area and improving the drying efficiency. The second filter screen is driven to flip through a first motor, so that the orchid-scented tea is flipped and falls to the upper end of the placing plate, so that the orchid-scented tea at the bottom of the second filter screen changes its position and flips to the surface, thereby improving the drying efficiency and achieving uniform drying.

This utility model relates to the technical field of skid steer loader accessories, specifically a quick-change attachment structure for skid steer loaders. It includes a mounting frame on which a beveled insert plate, a beveled square base quick-change insert plate, and a spring positioning plate are fixedly mounted. The mounting frame is hinged to the loader bucket cylinder and the boom end fork via pins, forming a rigid support base. A beveled cylinder rotatably passes through a mounting hole in the mounting frame, with an external spring providing a return force. A rotating handle is connected to the beveled cylinder via an elastic cylindrical pin, driving it to slide along the beveled surface of the square base. In this utility model, the beveled insert plate conforms to the lower edge of the bucket ramp for guidance, and the quick-change insert plate is flush with the attachment quick-change positioning plate. Rotating the handle raises and lowers the beveled cylinder, which is then locked in place by the spring. Combined with inserting the rotating handle into the attachment positioning hole, quick installation and removal of the attachment are achieved. The operation is convenient, the connection is stable, and it significantly improves the efficiency and reliability of attachment replacement.

The utility model belongs to the technical field of wind generating set tower footing, and discloses a wind generating set tower footing ventilation and heat dissipation structure which comprises a heat dissipation opening and a filter screen, the heat dissipation opening is formed in a tower drum, and the filter screen is installed in the heat dissipation opening through a locking device. The top of the filter screen is provided with a suction cup anti-falling unit used for preventing the filter screen from being separated from the heat dissipation opening. The filter screen is installed in the heat dissipation opening through the locking device, meanwhile, the suction cup anti-falling unit is arranged, the filter screen is further stabilized and prevented from shaking, and the filter screen is easy to disassemble and assemble.

The showing stand comprises a showing platform, an installation platform and a supporting frame, the installation platform is arranged in an installation cavity of the showing platform, a first conductive structure is arranged on the side, facing a through hole of the showing platform, of the installation platform, and the first conductive structure is electrically connected with an external power source; the supporting frame is provided with a second conductive structure, the supporting frame is detachably connected with the mounting platform, the second conductive structure makes contact with the first conductive structure for electric conduction, and the supporting frame is used for containing the exhibits and charging the exhibits. According to the utility model, the mounting platform is arranged in the mounting cavity, and the support frame adopts an external detachable assembly mode. The projection of the first conductive structure is limited in the range of the through hole, so that the support frame can be accurately butted during external installation to realize contact conduction of the first conductive structure and the second conductive structure, and the tedious steps of performing fixation and wiring conduction on the support frame from an external display platform and in the display platform during traditional assembly are avoided; the assembly difficulty is reduced.

The utility model relates to the technical field of bending machine, concretely relates to a straight and inclined integrated bending machine, including the processing platform, the detachable installation of straight concave mould and inclined concave mould is arranged on the upper surface of processing platform, the upper of straight concave mould and inclined concave mould is provided with straight convex mould and inclined convex mould respectively, the four corner parts of straight concave mould and inclined concave mould all are provided with sleeve, the sleeve is provided with annular groove, the central position of sleeve is fixedly installed with the vertical guide rod of setting, the annular groove is provided with spring, and the spring is around the guide rod, the four corner parts of straight convex mould and inclined convex mould all are fixedly installed with sliding block, and the sliding block is sleeved on the guide rod and is connected between the guide rod and slidingly, the sliding block is above the spring, and the upper of straight convex mould and inclined convex mould all is provided with the hydraulic cylinder for driving the convex mould downward movement and bending operation. The utility model does not need to frequently dismount and install the die, and has the advantages of straight and inclined integrated machining.

This invention relates to the field of new materials and electrochemical energy storage materials, and discloses a polyimide-derived hierarchical porous carbon / carbon fiber composite electrode and its preparation method. The preparation method involves using carbon fiber felt as a substrate, and constructing a three-level interconnected structure of micropores, mesopores, and macropores through polyimide solution spraying, metal-organic gel template deposition, gradient carbonization, and eutectic activation processes. This invention, through template synergy and optimized activation processes, enables the constructed composite electrode to possess a unique three-level interconnected structure of micropores, mesopores, and macropores, solving the problems of limited mass transfer and insufficient active sites in traditional carbon electrodes. It can be widely applied to all-vanadium, iron-chromium, and organic flow batteries, and has significant industrial application value.

This utility model belongs to the field of scaffolding technology, specifically relating to a foldable construction scaffold. It includes casters, retractable uprights, a lifting device, a ladder, and footboards. The lifting device is mounted on the retractable uprights, and includes a folding bracket, a drive cylinder, and a mounting plate. The mounting plate is fixed to the retractable uprights, and the folding bracket is mounted on the mounting plate. A drive cylinder and a limit rod are mounted at the bottom of the folding bracket. The telescopic end of the drive cylinder is connected to the limit rod, which is slidably mounted in a limit frame on the mounting plate. A footboard is connected to the top of the folding bracket, and a ladder is mounted on one side of the footboard. This utility model uses the drive cylinder to move the limit rod along the limit frame, causing the folding bracket to unfold or fold, thereby moving the retractable uprights and footboards along the direction of the retractable uprights, changing the height of the scaffold, and facilitating adjustment of the construction height as needed.

The invention discloses an application data management method and device, equipment, a medium and a program product, and relates to the technical field of computers. The method comprises the following steps: in a process of compiling an application source code, encrypting an original text key according to an encryption strategy corresponding to annotation information to obtain a ciphertext key; after the application source code compilation is finished, compiled codes are obtained; in the process of running the first application based on the compiled code, decrypting the ciphertext key to obtain an original text key; encrypting to-be-encrypted data in the first application based on the original text key to obtain ciphertext data; or decrypting the to-be-decrypted data in the first application based on the original text key to obtain the original text data. Due to the fact that the compiled code replaces the original text key by importing the ciphertext key, the compiled code cannot be obtained through reverse engineering to be analyzed to obtain the original text key, the leakage risk of the original text key is greatly reduced, the encrypted application data cannot be decrypted through the original text key, and the safety of the application data is improved.

The utility model relates to the technical field of production and manufacturing of non-ferrous metal alloy materials, in particular to a dust treatment device for production and manufacturing of non-ferrous metal alloy materials, which comprises a device body, the device body is provided with a connecting mechanism, and the connecting mechanism comprises a connecting assembly arranged on the outer wall of the device body. A scraping assembly is arranged on the upper section of the device body, and a screening assembly is arranged on the lower section of the device body. The screening assembly of the device is unique in design, the screening plate is driven by the connecting sliding sleeve to reciprocate up and down, dust in production of non-ferrous metal alloy materials can be efficiently screened through cooperation with the scraping plate at the bottom, the screening precision and efficiency are improved, the scraping plate can scrape off materials left on the screening plate in time when the screening plate moves, and the screening efficiency is improved. And meanwhile, the inner wall of the device can be ensured to be clean, the service life of the device is prolonged, and the maintenance cost is reduced.

This invention provides a dual-lumen thrombus aspiration catheter assembly, belonging to the field of interventional medical device technology. The assembly includes an aspiration tube body with an aspiration cavity and a guide cavity arranged parallel along the axial direction. The proximal end of the aspiration cavity is used to connect to a negative pressure aspiration device, and the distal end has an aspiration port. A distal protection unit is slidably inserted within the guide cavity. The distal protection unit has a guide portion and an interception portion located distal to the guide portion. The interception portion has a compressed state and an expanded state. During operation, the compressed distal protection unit is transported to the distal end of the target location along with the aspiration tube body. After the interception portion of the distal protection unit detaches from the guide cavity, it expands and supports itself at a set position to intercept any thrombi that fall during the operation. The aspiration cavity of the aspiration tube body can move along the guide portion to adjust the position of the aspiration port. This invention primarily addresses the technical problems in existing technologies where adjusting the position of the aspiration catheter requires repeated establishment of guidewire pathways, and the distal protection requires additional instruments, leading to long operation times and high risks.

The utility model discloses a cement mortar crack pouring device which comprises a moving mechanism, a cement storage tank and an air pump, the cement storage tank is arranged at the upper end of the moving mechanism, the air pump is arranged on one side of the cement storage tank, a material conveying pipe base is arranged on the side face of the cement storage tank, and a material conveying pipe is connected to one side of the material conveying pipe base in a penetrating mode. And one end of the conveying pipe is connected with a spray head in a penetrating mode, the end, close to the conveying pipe base, of the spray head is provided with a conveying pipe connector, one end of the air pump is connected with an air pipe in a penetrating mode, the other end of the air pipe is connected with the conveying pipe connector in an embedded mode, and a second buckle is arranged on the outer side of the spray head. Through the arrangement of the adapter, cement can be input into a structure with a downward opening through the assistance of high-pressure gas for crack pouring operation, and after the device completes material conveying, a worker can blow cement left in a material conveying pipe to a spray head through a gas pipe by using the high-pressure gas, and then the cement is discharged through the spray head.

The utility model discloses an automatic sampling device adopting an immersion tank method. The automatic sampling device comprises a dissolution cup, an integrated dissolution cup cover arranged on the dissolution cup, a fixed needle seat, a sampling needle and a liquid supplementing needle, the dissolution cup is used for accommodating a solution to be detected; a needle seat fixing hole is formed in the integrated dissolution cup cover; the fixed needle seat is inserted into the needle seat fixing hole and is used for fixing the sampling needle and the fluid infusion needle; the sampling needle is used for sampling from the dissolution cup; the liquid supplementing needle is used for supplementing liquid into the dissolution cup; the lower end part of the sampling needle and the lower end part of the liquid supplementing needle are arranged in the dissolution cup after penetrating through the fixed needle seat, and are a certain distance away from the cup wall of the dissolution cup. According to the automatic sampling and liquid supplementing device, automatic sampling and liquid supplementing operation can be achieved, manual intervention is reduced, personal errors are reduced, due to automatic sampling and liquid supplementing, an operator does not need to wait beside the dissolution rate instrument and wait for instrument reminding to conduct manual operation, and therefore operation time is saved, and experiment efficiency is improved.

The application provides a baffle, an expansion card containing the baffle and an electronic device. The expansion card is suitable for a case of the electronic device and includes a circuit board and the baffle. The baffle includes a baffle part and an assembling part. The baffle part is fixed to the circuit board. The assembling part is detachably clamped to the baffle part and is suitable for being combined with the case, so that the expansion card is assembled to the electronic device through the assembling part.

This utility model discloses a quick-fixing device for vibrating screen pressure bars, including a main body, an installation mechanism, and an adjustment component. The installation mechanism includes a screen, an installation bar, a support frame, a fixing component, and a threaded sleeve. The adjustment component includes a spring, a pushing component, and a connecting component. With the coordinated action of these mechanisms, the quick-fixing function of this device allows operators to complete the installation and removal of the pressure bars in a short time, avoiding cumbersome steps and significantly reducing equipment downtime, thus improving production efficiency. In addition, this device effectively vibrates and disperses the material on the screen by hammering the screen, especially fine particles or wet materials adhering to the screen. This reduces material clogging of the screen and improves screening efficiency.