143 results about "Rapid expansion" patented technology

The invention discloses a cranial cavity rapid hemostasis instrument which comprises a sleeve, a conductive expansion and contraction piece and a push-pull rod connected with the conductive expansion and contraction piece, a through penetrating hole is formed in the sleeve, the push-pull rod can drive the conductive expansion and contraction piece to move in the penetrating hole, and the conductive expansion and contraction piece is electrically connected with an external power source through the push-pull rod. The conductive expansion and contraction piece is of a net-shaped structure, the conductive expansion and contraction piece can be contracted into a strip shape in the penetrating hole, the conductive expansion and contraction piece can be expanded into a sphere-like shape outside the penetrating hole, the conductive expansion and contraction piece comprises a plurality of first silk threads and a plurality of second silk threads, and the extending directions of the first silk threads and the second silk threads are arranged in a staggered mode. The first silk threads and the second silk threads are made of flexible conductive materials. According to the invention, medium injection is not needed, the expansion speed is high, the hemostasis efficiency is high, and the pressure distribution is uniform.

The invention relates to the technical field of brazing, in particular to a heterogeneous material brazing joint and a preparation method thereof. The preparation method comprises the following steps that S1, a porous metal net is placed on the surface of a to-be-welded steel substrate for diffusion welding, and the steel substrate with the surface configuration is obtained; and S2, the configuration face of the steel base body serves as a face to be welded, the steel base body with the surface configuration is assembled with brazing filler metal and a titanium base body to be welded, and then vacuum brazing is conducted. According to the method, the porous metal net is welded to the surface of the steel substrate to be welded through diffusion welding, a periodic heterogeneous microstructure surface is formed on the steel substrate, a discontinuous mismatched and multi-phase alternating interface structure is constructed in a customized mode, a continuous stress line of a connector can be cut off, rapid initiation and rapid expansion of cracks are restrained, and strengthening and toughening brazing connection of titanium and steel can be achieved.

The invention relates to a quick expansion method based on run length coding, which comprises the following steps of: S1, taking a binary image as an input region and carrying out run length coding to obtain a run length; inputting expansion parameter height and width; s2, judging whether the height and width of the expansion parameters are less than or equal to 0; s3, judging whether the input area is rectangular or not; s4, calculating the number of possible maximum distribution runs, wherein the maximum run number is obtained by multiplying the run number of the input area by the input expansion height; s5, calculating the number of times required to be iterated; s6, executing expansion in the horizontal direction; s7, expansion in the vertical direction is executed; and S8, merging all the moved run length codes. According to the method, the run length coding technology is introduced, the algorithm execution process and the data representation mode are optimized, the defects and problems existing in the prior art are solved from the aspects of storage, calculation, internal storage, real-time performance and the like, the efficiency and performance of binary image expansion operation are improved, and important technical progress is brought to the field of image processing.

A device that is an improved rapid expansion fire stop and system for wall openings. The fire stop is made of a backer rod comprised of a durable foam material in a pre-determined size and cross-sectional configuration, the backer rod has a slot that accepts an intumescent strip with expansion characteristics of expanding up to thirty-three (33) times its size and volume when exposed to high heat or flame. The firestop is placed into the wall opening or crack of the wall system and then the wall system is completed with an architectural sealant across the remaining crack. The improved expanding rapid expansion fire stop serves to prevent fire, smoke and heat by expanding and fully sealing the wall opening and crack from any intrusion or passage of the heat, smoke or flame through the opening.

The invention relates to the technical field of bag type dust collectors, in particular to a bag type dust collector with a self-cleaning function. Comprising a controller, a mounting plate, filter bags, connecting springs, placing frames, balancing weights and the like, the controller is mounted on the side face of a mounting frame, the mounting plate is connected to the inner wall of a shell, the filter bags are placed on the mounting plate at intervals, the placing frames are mounted at the bottom of the mounting plate through the connecting springs at intervals, the connecting springs are distributed on the peripheries of the filter bags, and the balancing weights are placed in the placing frames. And the balancing weight is connected with the bottom of the filter bag. Through cooperation of the placing frame, the balancing weight, the contact rod and the contact plate, the filter bag can be controlled to vibrate in a reciprocating manner, so that dust adhered to the outer surface of the filter bag is shaken off, and compared with an existing pulse type cleaning mode, stress fatigue caused by rapid swelling and contraction of a filter bag material can be reduced, and the service life of the filter bag is prolonged. The aging process of the filter bag is effectively delayed, the service life of the filter bag can be remarkably prolonged, and the maintenance cost and the replacement frequency are reduced.

The invention belongs to the technical field of puncture drainage, and discloses clinical ascites drainage equipment which comprises a drainage tube, the drainage tube is movably sleeved with an anti-seepage tube, the anti-seepage tube is provided with an integrally-formed anti-seepage assembly, one end of the anti-seepage tube is integrally formed with a connecting tube, the connecting tube obliquely extends to the side face of the drainage tube, and the connecting tube is connected with the anti-seepage assembly. The two ends of the anti-seepage tube are hermetically connected to the outer surface of the drainage tube in a sleeving manner, and the other end of the connecting tube is connected with an adjustable balloon; the anti-seepage assembly comprises a first plug, a second plug and a communicating pipe which are integrally formed on the anti-seepage pipe. Due to the arrangement of the anti-seepage assembly, under the limitation of the communicating pipe, the effect that the two ends are rapidly expanded and the middle part is gradually and slowly expanded can be achieved through the first bag cover, the second bag cover and the limiting ring, so that after air is injected, the purpose that the first plug and the second plug are tightly attached to the inner side and the outer side of a puncture opening can be achieved; therefore, the effect of preventing leakage is achieved.

The present invention discloses a spatial all-round self-locking series thin-walled tube energy absorption system, which is a thin-walled tube structure made of metal material. The energy absorption system is composed of a number of series thin-walled tubes that are staggered and interlocked. The cross-sectional shape of the series thin-walled tube substructure is four long elliptical strips formed by three groups of parallel thin plates with equal spacing in series. The present invention achieves the self-locking of the structural parts of the energy absorption system under the impact of multiple directions in space through the optimized design of the series thin-walled tubes, that is, there is no splashing of the tubes and the energy absorption is stable, which overcomes the defect of the traditional self-locking energy absorption system that the load direction is single. Compared with the prior art, the advantages of the present invention are: the energy absorption system can achieve rapid expansion in three-dimensional directions and is not limited by the size of the thin-walled tube substructure, that is, the external size of the energy absorption system can be flexibly adjusted according to the actual collision energy and the size of the working surface, which is more conducive to the energy absorption system to cope with complex working conditions.

The invention relates to the field of multilayer board manufacturing, in particular to a laminating device for multilayer board manufacturing and a laminating method.The laminating device comprises a fixed bottom frame, a fixed top plate is arranged above the fixed bottom frame, a mounting column is arranged at the bottom end of the fixed bottom frame, and an assembly column is fixedly arranged at the top end of the fixed top plate; a liftable press-fit assembly is arranged between the fixed bottom frame and the fixed top plate, and a moving assembly for taking and placing a multi-layer plate is arranged in the middle of the top end of the fixed top plate. New equipment units can be added at any time according to production requirements, so that rapid expansion and adjustment of a production line are achieved, meanwhile, the problems of uneven pressure, bubble residues, poor curing and the like in a traditional pressing process are solved, it is ensured that each multi-layer board can reach an ideal state, automatic taking and placing of the multi-layer boards are achieved, and the production efficiency is improved. Manual intervention is reduced, and production efficiency and safety are improved.

The invention belongs to the technical field of nuclear power station large flange face in-situ machining and repairing, and aims to solve the technical problems that in-situ machining and repairing on-site installation and adjustment of a nuclear power station large flange face need many workers, and efficiency is low. The invention discloses a rapid installation and adjustment device and method for nuclear power large flange face in-situ machining and repairing equipment, the device comprises a base device and an electric rapid expansion mechanism, the electric rapid expansion mechanism comprises a jacking screw rod, a jacking block and a transmission screw rod, the transmission screw rod is connected with a motor, and the motor drives the jacking screw rod to stretch out or retract; according to the method, an electric rapid expansion mechanism is installed on the side edge of a base device, rapid stretching or retracting of a jacking block is achieved through a driving motor, and rapid installation and adjustment of the nuclear power large flange face in-situ machining and repairing equipment are achieved. Rapid installation and adjustment of the nuclear power large flange face in-situ machining and repairing robot can be achieved, the on-site installation and adjustment time of personnel is shortened, and the radiation dose of the personnel is reduced.

The utility model relates to the technical field of electric power construction, in particular to an electric power facility bearing safety protection device. According to the technical scheme, the device comprises a first supporting column and a second supporting column movably connected to the front side of the first supporting column, a protection assembly and a switch assembly are arranged on the first supporting column, and the protection assembly comprises three first protection frames movably connected between the first supporting column and the second supporting column; the first protection frame on the left side is fixedly installed on the second supporting column, the first protection frame on the right side is fixedly connected with the first supporting column, the three first protection frames are in sliding connection, and three second protection frames are movably connected to one side of the first supporting column. Through mutual cooperation of the first protection frame, the second protection frame, the third protection frame and the movable frame, the protection device can be conveniently and rapidly unfolded for protection operation, the protection range of electric power facilities can be adjusted, the protection device can be conveniently folded, unfolding and folding can be conveniently and rapidly carried out, and the use convenience is improved.

The present invention relates to the technical field of welding manipulators, and discloses a valve housing welding operation device, including a workbench. A numerical control slide rail is fixedly connected to the top of the workbench, and a supporting part is fixedly connected to the bottom of the workbench. A lifting platform is slidably connected inside the numerical control slide rail. Through the setting of the loosening protection device, when the lifting platform falls out of control due to a failure, the piston block accelerates and vertically displaces downward, pushing the water flow inside the plunger pump to flow out from the output end of the plunger pump through the one-way export check valve. The water flow inside the water storage tank is introduced into the inside of the plunger pump through the one-way import check valve. The water flow flowing out of the one-way export check valve flows through the water injection hose and finally flows into the laminated water bed. Through the rapid expansion of the laminated water bed, a buffer zone with a buffering effect is quickly and automatically built, providing the greatest life protection for the operator, avoiding casualties of the operator caused by a rapid fall, and providing a stable and safe operation environment for the operator.

The utility model discloses a portable outdoor stove, which mainly solves the inconvenience and efficiency problems of existing portable stoves in terms of carrying, assembly, use and maintenance. The stove includes a panel, a telescopic stove body and legs, wherein the telescopic stove body is composed of a plurality of stove frames and ash leakage plates of different diameters, which can be quickly unfolded and stored. The legs are designed to be multiple and detachably connected, which is convenient for carrying and installation. The panel is provided with fire outlet holes and smoke exhaust holes, which cooperate with the detachable smoke exhaust pipe to achieve efficient smoke exhaust. The flange design between the stove body frames allows the stove body to automatically unfold under the action of gravity, simplifying the assembly process. In addition, the opening design of the stove door facilitates the input and removal of fuel, and the setting of the ash leakage plate facilitates the cleaning of the stove ash. The entire stove is compactly designed and reasonably structured, which not only improves the portability and use efficiency, but also enhances the stability and safety of the stove, and is suitable for use in various outdoor environments.

This invention relates to the field of industrial robot technology, and in particular to an anti-tipping industrial robot. The anti-tipping industrial robot includes a robot body with support plates fixedly connected to the bottom ends on both sides. A connecting seat is fixedly connected to the center of the top of the robot body. The body contains a dynamic center of gravity adjustment mechanism composed of a drive gear, a driven gear, a swing arm, and a load-bearing block, which can adjust the center of gravity position in real time according to the working posture to counteract the tipping torque. The bottom is equipped with a hydraulically driven support plate and rubber pads, combined with an expandable gravity block auxiliary support structure. This allows for rapid expansion of the support range and improved grounding stability under heavy loads, off-center loads, and large-range extension of the robotic arm. It effectively solves the problems of insufficient anti-tipping capacity, delayed response, and easy instability in complex working conditions caused by traditional robots relying solely on passive support. The overall structure is stable and reliable, significantly improving the operational safety and applicability of industrial robots.

The invention provides an extensible power distribution box with intelligent monitoring, and relates to the technical field of power distribution boxes, the extensible power distribution box comprises a main body assembly, the main body assembly comprises a cabinet body and slide rails, the bottom surface of the cabinet body is symmetrically in threaded connection with the slide rails, and the bottom surface of the cabinet body is in sliding connection with an extension assembly through the slide rails. The upper end and the lower end of the two sides of the expansion assembly are mutually symmetrical and connected with the two sides of the interior of the cabinet body through drawing sliding rails, and the upper end and the lower end of the expansion assembly are connected with the upper end and the lower end of the interior of the cabinet body through connecting locking mechanisms. By the adoption of the drawing type expansion structure, the box does not need to be disassembled, drawing and locking of the expansion assembly can be completed by a single person within three minutes, and the requirement for on-site rapid expansion is met. The temperature, humidity, current, voltage and smoke parameters are comprehensively monitored through the multi-parameter sensing assembly, the data acquisition frequency can reach one time per second, the detection box and the triple damping structure are sealed, and the influence of moisture, electromagnetic interference and vibration is effectively resisted.

The invention discloses a tear-resistant diaphragm for an electrochemical device, which is characterized in that long-range molecular chain entanglement of a polyolefin film is regulated and controlled by blending long-branch-chain component polyethylene and short-branch-chain high-molecular-weight high-density polyethylene and controlling the overall viscosity-average molecular weight, and after heat treatment and secondary directional stretching forming, the tear-resistant diaphragm is prepared. It is found that the puncture resistance in the direction perpendicular to the surface of the film is excellent, the tear resistance of the film breadth is also synchronously improved, and cracks and rapid tearing caused by increase of the production speed and increase of the tension of rim charges can be avoided; the diaphragm provided by the invention can better cope with the generation and rapid expansion of cracks caused by external impact, sharp object impact and tension fluctuation.

The invention relates to the technical field of coiled material conveying, in particular to coiled material asynchronous die cutting equipment which comprises a cross asynchronous die cutting machine and an intelligent suspension conveying system used for automatically taking and placing coiled materials, a fixing frame is fixedly connected to the cross asynchronous die cutting machine, and the intelligent suspension conveying system is arranged above the fixing frame. An adjusting mechanism for adjusting the position of the convex plate is also arranged; the invention further relates to a using method of the asynchronous die cutting equipment for the coiled materials, through the arrangement of the convex plate, the mounting plate, the adjusting mechanism and other structures, the auxiliary tensioning shaft for fixing the coiled materials can be rapidly combined beside the main tensioning shaft, so that rapid expansion operation of the device is achieved, the production capacity of a single main material is reserved, and the production efficiency of the device is improved on the premise that the whole machine is not replaced. The system can be quickly expanded into double-main-material (even multi-main-material) staggered jump pasting, and achieves multiple purposes and plug and play, thereby reducing the equipment investment, shortening the line changing time and improving the order response flexibility.

The invention relates to the technical field of bridge construction, in particular to a bridge lower structure construction integral jacking working platform and a construction method.The bridge lower structure construction integral jacking working platform comprises a top platform, two first unfolding plates which are symmetrical front and back are rotatably connected to the top platform, second unfolding plates are rotatably connected to the first unfolding plates, and the top platform is arranged on a lifting mechanism; and a propelling mechanism is arranged on the top platform. Through cooperative work of the lifting mechanism, the unfolding mechanism and the propelling mechanism, modularization and automatic operation of bridge lower structure construction are achieved, the lifting mechanism is driven by a lead screw and linked with a folding assembly, the height of the platform can be accurately controlled, it is ensured that the construction axis is consistent with design, and the construction efficiency is improved. And the unfolding mechanism realizes rapid unfolding and folding of the unfolding plate through a pull rope and a driving motor to form a stable positioning frame, so that the construction efficiency and the positioning precision are remarkably improved, and the time and errors of manual adjustment are reduced.

The present invention discloses an energy-saving and wind-proof fixed-wing unmanned aerial vehicle, which includes a fuselage, a wind-gathering component, first to fourth positioning components, a first wing and a second wing. In the present invention, extension wing plates are arranged in the first and second wing mechanisms, folding wing plates are arranged in the extension wing plates, and the extension wing plates are triggered by the wind-gathering component, so that the wind force in the external environment during the flight of the unmanned aerial vehicle can be well monitored. At the same time, when the environmental wind force is relatively large, the automatic and rapid expansion of the extension wing plates is triggered, so that the effective area of the wing mechanism can be effectively increased. The expanded wing area can effectively improve the lifting force of the unmanned aerial vehicle, and at the same time can improve the flight stability of the unmanned aerial vehicle, thus achieving a good wind-resistant effect and avoiding the situation of the unmanned aerial vehicle getting out of control, and the application effect is good.

The invention belongs to the technical field of nuclear power station large flange face in-situ machining and repairing, aims to solve the problems that in the equipment field installation stage, many workers are needed for manual field installation and adjustment, and efficiency is low, and discloses nuclear power large flange face in-situ multi-procedure combined machining and repairing equipment. Comprising electric rapid expansion mechanisms, a turning arm beam module, a base, a milling arm beam module and a main machine rotating mechanism, the electric rapid expansion mechanisms are evenly arranged on the peripheral side of the base, the main machine rotating mechanism is installed on the upper end face of the base, and the turning arm beam module and the milling arm beam module are symmetrically fixed to the main machine rotating mechanism; the whole body is arranged in a parallel state. The in-situ machining and repairing equipment for the nuclear power large flange face can be rapidly installed and adjusted on the flange face, personnel participation is reduced, and the labor intensity and the irradiation dose of personnel are reduced.

The present invention discloses a high-frequency crushing hydraulic control system and its control method. The control system is connected to the first chamber and the second chamber of the crushing cylinder. The first chamber is connected to a high-pressure pump source through a high-pressure pipeline, and the first chamber is connected to a low-pressure large-flow control module through a first pipeline. The low-pressure large-flow control module is connected to a low-pressure pump source, and the low-pressure large-flow control module is connected to the second chamber through a second pipeline. A hydraulic lock is arranged between the first pipeline and the second pipeline. The high-pressure pipeline is connected to a high-pressure pressure detection unit, the first pipeline is connected to a first pressure detection unit, and the second pipeline is connected to a flowmeter. The controller controls the low-pressure large-flow control module and the high-pressure pump source according to the feedback signal, and switches between high pressure and low pressure during the rapid expansion and contraction of the crushing cylinder and the high-pressure crushing process. The present invention occupies a small space, can not only improve the crushing efficiency, reduce the cylinder specification, but also improve the service life of the pipeline and reduce the equipment failure rate.

The utility model discloses an anti-loosening quick expansion countersunk bolt, and particularly relates to the technical field of expansion countersunk bolts, the anti-loosening quick expansion countersunk bolt comprises a countersunk bolt, an expansion sleeve is sleeved on the outer side of the countersunk bolt, and an anti-loosening mechanism is arranged between the countersunk bolt and the expansion sleeve; the anti-loosening mechanism comprises a fixing nut, the fixing nut is connected to the outer side of the countersunk bolt in a threaded mode, a wear-resisting gasket is installed at the top of the expansion sleeve, and a flat gasket is arranged at the top of the wear-resisting gasket. By arranging the anti-loosening mechanism, the anti-loosening capacity after preliminary fastening is improved from multiple aspects, and when the fixing nut tends to loosen and rotate due to external force such as vibration, the reacting force generated by deformation of the second elastic washer can further prevent the fixing nut from loosing and rotating; meanwhile, the anti-loosening effect is remarkably enhanced through stress between the thread bushing and double threads of the fixing nut and the countersunk bolt, and it is ensured that the bolt can be kept in a fastened state in the complex vibration environment.

The invention provides an NK (Natural Killer) cell rapid amplification method not limited by cell inoculation concentration, which belongs to the technical field of cell culture and comprises the following steps: resuspending cord blood source mononuclear cells by using an activation culture medium, supplementing the activation culture medium for culture, and then supplementing a proliferation culture medium for continuous culture until amplification is finished; the activation culture medium is prepared by adding IL-15 and IL-12 into a proliferation culture medium; the proliferation culture medium is prepared by adding IL-2 (Interleukin-2), exosome, umbilical cord Wharton's jelly, nicotinamide adenine dinucleotide and human AB serum 100-512 into a GT.T551 H3 culture medium. According to the technical scheme provided by the invention, the purposes that the initial concentration of the NK cells does not need to be specially controlled, the operation is simple, and the amplification speed is high are achieved.

The invention relates to the technical field of cooling, in particular to a cooling device for polyurethane production, which comprises a reaction tank and a cooling assembly, the reaction tank comprises a tank body and a cooling jacket, an extraction opening is formed in the top of the tank body, and a discharging opening is formed in the center of the bottom; the cooling assembly comprises an air pump, a circulating pump, a buffer tank, a compressor, a compression tank and a refrigerator; the refrigerator comprises a first cooling inlet, a first cooling outlet, a second cooling inlet and a second cooling outlet; the extraction opening, the air pump, the buffer tank, the first cooling inlet, the first cooling outlet, the compressor, the compression tank and the discharging opening are communicated to form inner cooling circulation; the second cooling inlet, the second cooling outlet, the circulating pump and the cooling sleeve are communicated to form external cooling circulation; internal cooling circulation and external cooling circulation are arranged, internal and external synchronous cooling can be achieved, especially internal cooling circulation is achieved, compressed nitrogen enters the tank body from the center of the bottom of the tank body through expansion of the compressed nitrogen, the compressed gas is rapidly expanded to absorb heat, the contact area is increased, and meanwhile rapid cooling is achieved.

The utility model provides a manual expansion sleeve clamp which comprises a sleeve, an expansion sleeve head is installed on the side, away from a clamp connecting plate, in the sleeve through an inner hexagonal countersunk head screw, and the end, close to the clamp connecting plate, of the sleeve is rotationally connected with an eccentric shaft. The end, located on the outer side of the sleeve, of the eccentric shaft is provided with an operation handle capable of adjusting the position through a connecting piece, the end, located in the sleeve, of the eccentric shaft is rotationally connected with a connecting rod, the end, away from the eccentric shaft, of the connecting rod is in threaded connection with a cross universal joint, and the other end of the cross universal joint is in threaded connection with a clamping jaw guide rod. The end, located in the cavity, of the clamping jaw guide rod is provided with a reset piece, the end, close to the cross universal joint, of the clamping jaw guide rod is rotationally connected with a plurality of sawtooth clamping jaws which are annularly arranged at equal intervals, and the device has the following beneficial effects that a power source and an air source are not needed for driving, and low-cost portable manual rapid expansion of the rolled film neck bush is achieved.

The utility model relates to the technical field of adsorption discs, and discloses a wafer adsorption disc, which comprises a base and a mounting plate, a connecting seat is fixedly connected onto the mounting plate, a main adsorption disc body is fixedly connected onto the connecting seat, a first motor is fixedly mounted in the connecting seat, an output end of the first motor is fixedly connected with a rotating disc, and the rotating disc is fixedly connected with a second motor. The connecting rod is fixedly connected with an auxiliary suction disc body, the mounting plate is fixedly provided with a vacuum generator, the flow guide block is fixedly connected with an air guide pipe, the bottom of the main suction disc body is provided with a main suction cup, and the bottom of the auxiliary suction disc body is provided with an auxiliary suction cup. According to the utility model, during use, the first motor is started to drive the rotating disc to rotate, and rapid expansion and contraction of the six groups of auxiliary adsorption disc bodies are realized through cooperation of the sliding grooves and the sliding rods, so that the adsorption area is flexibly adjusted according to the actual size of a wafer, the universality and adaptability of equipment are greatly improved, and the production cost and the maintenance difficulty are reduced.

The present application discloses a model reasoning acceleration method, system, electronic device, storage medium and product, which relate to the field of artificial intelligence technology, including obtaining intermediate variables of a serialized model in a first computing module, the intermediate variables including at least one of a key-value copy, an intermediate-layer potential feature and a deep-layer output feature, the intermediate-layer potential feature being a feature whose similarity in the first computing module and the second computing module is not less than a preset similarity threshold, the intermediate-layer potential feature being determined by a shallow computing block in the first computing module, and the deep-layer output feature being determined by a deep computing block in the first computing module; determining a feature whose similarity is not less than a preset similarity threshold as an input to the deep computing block in the second computing module, so that the second computing module obtains a prediction result of the serialized model, solving the technical problem of rapid cache expansion in related solutions, which leads to slow model reasoning speed, and achieving the technical effect of reducing redundant calculations and thereby speeding up the model reasoning speed.

The rapid splicing type gymnodiptychus pachycheilus culture net cage comprises a net cage body, an extending cylinder is installed at the opening position of the upper end of the net cage body, and a sealing cover is arranged at the end, away from the net cage body, of the extending cylinder. According to the rapid splicing type pachypsilamus pachypsilamus culture net cage, the net cages can be stably spliced up and down through lug plates and locking bolts, the adjacent net cages side by side can be spliced through butt joint plates and second mounting bases, specifically, push blocks are pushed to drive stop rods to retract into mounting cavities, so that grooves are opened, and the net cages are spliced through the butt joint plates and the second mounting bases; then a butt-joint plate is pushed to rotate on a first mounting base through a first transverse shaft, so that a groove in the butt-joint plate is buckled outside a second transverse shaft on a second mounting base, then a push block is loosened, a reset spring can push a stop lever to be inserted into a locking hole, the second transverse shaft is locked in the groove, and at the moment, splicing of the adjacent net cages side by side is completed; rapid expansion and splicing of the culture net cages are facilitated, the overall culture efficiency is prevented from being affected, and the production cycle is prevented from being prolonged.

The invention belongs to the technical field of otorhinolaryngological equipment, and particularly relates to an otorhinolaryngological treatment auxiliary expansion mechanism which comprises a mounting plate, a third mounting frame is fixedly connected to the upper surface of the mounting plate, a connecting sleeve is fixedly connected to the inner wall of the third mounting frame, brushes are annularly distributed on the outer contour of a cleaning rod, and an inflating mechanism and an adjusting mechanism on a sliding seat are arranged on the mounting plate. According to the device, the air bag can be rapidly and effectively inflated, rapid expansion of parts such as earholes is achieved, wounds generated in the expansion process are reduced, subsequent diagnosis and treatment operation is facilitated, the parts such as the earholes are preliminarily cleaned while expansion is conducted, diagnosis and treatment efficiency is improved, pain and discomfort of a patient are reduced, and the device is worthy of popularization and application. The motion and state of the expansion mechanism can be conveniently controlled, the expansion mechanism can be easily switched to an inflation mode or an adjustment mode when needed, the advantages of multifunctionality, stability and the like are achieved, and great convenience and help can be provided for the treatment process of the otolaryngology department.

The invention belongs to the field of mechanical property optimization of amorphous alloy materials, and discloses a method for softening and rejuvenating metallic glass through ultralow-temperature full-elastic constraint compression. Bulk metallic glass is taken as a research object, and full-elastic constraint compression deformation treatment is applied under an ultralow-temperature condition, so that the non-uniform shear fracture behavior of the metallic glass can be remarkably avoided, and the plasticity of the metallic glass is improved. No shear band is generated on the surface of the metal glass subjected to ultralow-temperature full-elastic constraint compression treatment, fine and dispersed multi-shear band distribution is shown in a subsequent mechanical behavior test, and the shear band stress concentration phenomenon which is not beneficial to plastic deformation is effectively inhibited. According to the present invention, the bulk metal glass is prepared, the liquid nitrogen medium is adopted to obtain the ultra-low temperature environment, the sheath is adopted to make the sample subjected to the triaxial constraint force, and the more free volume makes the atom migration and the rearrangement easily occur in the material so as to avoid the formation and the rapid expansion of the main shear band, and achieve the rejuvenation effect.

The utility model discloses a toolbox convenient to expand for automobile repair, which belongs to the technical field of automobile repair auxiliary equipment and comprises a tool plate, a gear box is fixed in the middle of the bottom end of the tool plate, an auxiliary gear is mounted at the inner bottom end of the gear box, a main gear is connected onto the auxiliary gear, a driving shaft is fixed onto the main gear, and a knob is welded at one end of the driving shaft. By designing a group of expansion operation mechanism consisting of the driving shaft, the main gear, the auxiliary gear, the transmission shaft, the transmission gear and the rack, when the tool shelf needs to be expanded, the driving shaft is driven to rotate through the knob, the driving shaft drives the auxiliary gear to rotate through the main gear, and the auxiliary gear drives the transmission gear to rotate through the transmission shaft; and finally, the racks drive the two sets of rapid expansion discs to move at the same time, synchronous expansion of the two ends of the tool disc can be achieved, meanwhile, during storage, the two sets of expansion discs can be stored at the same time by overturning the rotary knobs, the operation process is simplified, the operation performance is improved, and the use effect is good.