28results about How to "Reliable switching" patented technology

The application provides a device and method for generating controllable flame sheet and flame ring in a planar shock tube, which comprises: an experimental section, a flame generating box arranged in the experimental section, and having a thin layer cavity for accommodating premixed combustible gas inside; a film covering both sides of the flame generating box, for sealing the thin layer cavity and breaking after being impacted by incident shock waves; a wire slot arranged on the flame generating box, having a preset geometric shape; and an ignition element embedded in the wire slot, for heating and igniting the premixed combustible gas; the flame generating box generates flame sheet or flame ring with preset disturbance in the same experimental section by replacing the component with different wire slot shapes. The application reduces the interference with shock wave propagation and flame evolution, thereby providing a reliable and flexible switching experimental platform for studying the compression, curling and stretching of flame interface under the action of incident shock waves.

This invention discloses a transformer lead fixing device with deformation self-compensation function, relating to the field of transformer technology. The invention includes a fixing plate fixed to the transformer housing, a lead fixing component, a deformation self-compensation mechanism, and a pin mechanism. The deformation self-compensation mechanism includes a clamping component fixed to the end of the lead and multiple stops disposed on the fixing plate. The clamping component has a multi-segmented bent elastic structure, and the stops have inclined abutment surfaces. The pin mechanism adjustably mounts the lead fixing component to the fixing plate. When the lead fixing component is driven to move closer to the transformer housing, the clamping component and the inclined abutment surfaces of the stops abut against each other, generating elastic deformation and achieving electrical contact between the clamping component and the terminal block. This invention, through the multi-segmented bent elastic structure of the clamping component and the unidirectional displacement adjustment of the pin mechanism, achieves adaptive compensation for deformation caused by thermal expansion and contraction and vibration, ensuring long-term stable electrical contact between the terminal block and the lead, and facilitating subsequent maintenance and adjustment.

The utility model belongs to sewing equipment technical field, especially point to a kind of encryption sewing device and sewing machine;One end of the main control lever main shaft of stitch regulating mechanism protrudes shell lower section, and is connected with the one end of main feed tooth adjusting lever, main feed tooth scale plate is provided on shell lower section, first arc-shaped hole with the main control lever main shaft axis as center is provided on main feed tooth scale plate, connecting piece is worn in first arc-shaped hole and respectively connects the other end of main feed tooth adjusting lever and the one end of transmission plate, the other end of transmission plate is connected with the output end of driving part, can make main feed tooth adjusting lever rotate and adjust the stitch of cloth feed tooth under the action of driving part, realize the switching between tight seam and the stitch required by work;The utility model can quickly and reliably switch without stopping between the stitch required by work switching and encryption sewing stitch, can realize automatic encryption sewing when starting sewing and sewing end, significantly improve sewing efficiency and sewing quality.

The utility model relates to glass processing equipment technical field, more particularly, relate to a glass product processing platform, glass product processing platform includes frame and elevating system. The frame upper end is evenly arranged several caster wheels with the wheel top up along length and width direction, and the wheel vertexes jointly form the adjustment plane. When the glass plate is placed in the adjustment plane, the operator can safely and labor-savingly push or rotate the glass plate to adjust the horizontal processing angle. When the glass plate needs to be fixed for cutting, edge grinding or drilling, the elevating mechanism is started. The elevating platform moves vertically along the frame through vertical sliding connection, and invades the adjustment plane in the rising process. When the platform surface is higher than the wheel vertex, the glass plate is lifted off the caster wheel and is transferred to the elevating platform for stable fixation. After the processing is completed, the platform is lowered, and the glass plate falls back to the caster wheel to restore the adjustable state. The design solves the safety risk and efficiency problem of manual angle adjustment of large-size glass through the caster wheel adjustment plane, and significantly improves the operation safety and processing efficiency.

The invention relates to the field of wafer processing, and discloses a wafer cleaning device and a method thereof.The wafer cleaning device comprises a cleaning tank, a continuous cleaning disc is arranged in the cleaning tank, the continuous cleaning disc is connected with a driving motor through an indexing transmission mechanism, and the driving motor is fixed to the side wall of the cleaning tank; a plurality of wafer bearing mechanisms are distributed on the side face of the continuous cleaning disc in the circumferential direction, a cleaning station and a spin-drying station are arranged at the position corresponding to the continuous cleaning disc, and the cleaning station and the spin-drying station are independently arranged. A cleaning mechanism is arranged at the cleaning station and is used for cleaning the wafers in sequence; a spin-drying mechanism is arranged at the spin-drying station and is used for sequentially spin-drying the corresponding circles; through cyclic indexing conveying of the continuous cleaning disc, discrete cleaning and spin-drying processes are integrated into a continuous assembly line; the loading, cleaning, transferring and spin-drying processes of the wafer are seamlessly connected, so that the time loss of wafer carrying and waiting in the traditional single-machine operation is eliminated, and the wafer handling capacity in unit time is improved.

The utility model relates to the technical field of heating and cooling equipment, and discloses a high-efficiency integrated energy station system capable of supplying cold and hot, which comprises a water-cooling cold and hot water unit, a cold and hot switching pipeline component and a high-efficiency energy tower. A pipeline and a valve are arranged in the cold and hot switching pipeline assembly and communicate with the water-cooling cold and hot water unit, the user and the efficient energy tower correspondingly, so that the functions of cooling and heating can be considered through starting and stopping of the valve, the flow direction of a medium in the pipeline is controlled, cold and hot mode switching is rapid and reliable, the misoperation risk is avoided, one machine has multiple purposes, and heat supply equipment does not need to be additionally purchased. And the system adopts a high-strength container modular design, so that the occupied area is small, the prefabricated production degree is high, and the environmental protection property is high.

The invention discloses an adjustable energy-saving solar street lamp, relates to the technical field of solar street lamps, and aims to solve the technical problem that the conventional road surface brightness at night is not uniform due to the fixed illumination angle and lighting effect mode of an existing street lamp, and the adjustable energy-saving solar street lamp comprises a lamp post, a lamp cap, a solar panel and an adjusting mechanism. Through the angle adjusting assembly composed of the supporting cylinder, the supporting rod and the electric push rod, multi-mode adjustment of the illumination angle of the lamp holder is achieved, and the problems that the illumination direction of an existing solar street lamp is fixed and single, and different requirements of night driving guiding and severe weather safety warning cannot be met are solved; and on-demand energy saving cannot be realized in a low traffic flow period. In a conventional night mode, the lamp holder can be adjusted to project in an inclined mode in the driving direction, a continuous and uniform light blanket is formed, the sight distance of a driver is remarkably prolonged, the zebra crossing effect is eliminated, and energy is saved. In the foggy day mode, the lamp holder can be adjusted to obliquely irradiate in the direction opposite to the running direction, and a basis is provided for follow-up collaborative atomization lighting effect.

The application discloses a reversing mechanism and an aircraft loading and unloading device, and relates to the technical field of aircrafts. The first transmission assembly comprises a first transmission shaft capable of moving axially and a first power joint arranged at one end of the first transmission shaft; the second transmission assembly comprises a second transmission shaft capable of moving axially and a second power joint arranged at one end of the second transmission shaft; and the linkage switching assembly is rotationally connected to the first transmission assembly and the second transmission assembly. The linkage switching assembly is configured to act in response to an external trigger and drive the first transmission shaft and the second transmission shaft to produce linkage axial displacement, so as to switch between the first working mode and the second working mode. Therefore, the application realizes reliable and rapid switching of two-way power output by using a single driving source and a simple linkage structure, and has the technical effects of compact structure, small switching impact, simple control, low manufacturing cost and high operation reliability.

The present application relates to the technical field of lead-acid battery manufacturing, and particularly relates to a lead-acid battery vacuumizing and acid-adding device, which comprises a conveying belt, an acid-adding tank, a three-way valve, an acid storage mechanism, an acid-adding pipeline, a filling mechanism, an adjusting mechanism, a vacuum system and a control system. The three-way valve core is provided with valve holes one, two and three, and a closed arc surface. The filling mechanism is provided with a sealing plunger, which blocks the filling needle head during vacuumizing and opens during acid injection. After the vacuum system vacuums the battery, the acid storage mechanism injects pre-stored quantitative acid into the battery under negative pressure. The lead-acid battery vacuumizing and acid-adding device realizes accurate control of acid quantity, elimination of bubbles and automatic continuous production, and has the advantages of high acid-adding precision, high efficiency and good battery consistency.

The invention relates to a power failure prevention device of a multi-energy hybrid power electric propulsion ship. The power failure prevention device comprises a main electric propulsion assembly, a slave electric propulsion assembly and a switching assembly. The device comprises a main power supply state and an emergency power supply state, when the device is in the main power supply state, a first wire and a second wire are powered on, a moving mechanism is attracted to an electromagnet, and the middle of a third wire is disconnected; when the device is in an emergency power supply state, the main power supply is powered off, the wiring terminal is matched and connected with the joints of the third wire and the fourth wire, and the third wire is connected with the fourth wire. Compared with the prior art, the system has the advantages that the master electric propulsion assembly and the slave electric propulsion assembly cooperate with each other, double electric propulsion guarantee is constructed, redundant supply of ship propulsion electric power is achieved, the operation risk after single power supply outage can be avoided, rapid and automatic switching can be achieved, the recovery time of propulsion power in the fault state is greatly shortened, and the ship propulsion efficiency is improved. And continuous output of ship propulsion power is guaranteed.

This application discloses a hybrid power distribution system, method, and vehicle for a vehicle, including a control module and connected to the control module: a power module for supplying power to a high-voltage load, a low-voltage load, and a battery module; a battery module formed by connecting a first battery unit and a second battery unit in series, wherein the battery module outputs a high-voltage signal to supply power to the high-voltage load, and the second battery unit outputs a low-voltage signal to supply power to the low-voltage load under normal or emergency operating conditions; and an auxiliary converter module connected to the power module and the battery module for performing the following: drawing power from the power module to supply power to the entire battery module; drawing power from the power module to supply power to the second battery unit individually; drawing power from the power module to provide auxiliary power to the low-voltage load; and converting the high-voltage signal output by the battery module into a low-voltage signal to provide auxiliary power to the low-voltage load.

This application relates to the field of smart bathroom technology, and provides a water pattern switching device, a spray gun, a smart toilet seat, and a smart toilet. The housing's receiving groove and one end of the spray head form a water passage cavity. The spray head is provided with independent first and second water supply channels, which are respectively connected to the first and second nozzles. A drive shaft rotatably passing through the housing drives the spray head to rotate to a first position or a second position. When the drive shaft rotates to the first position, the first water inlet end is connected to the water passage cavity, and the second water inlet end moves to the lowest point of the water passage cavity. The movable part moves to the lowest point under the action of gravity to block the second water inlet end, and only the first water supply channel is filled with water, which is sprayed out by the first nozzle with the first water pattern. When the drive shaft rotates to the second position, the second water inlet end is connected to the water passage cavity, and the first water inlet end moves to the lowest point of the water passage cavity. The movable part moves to the lowest point under the action of gravity to block the first water inlet end, and only the second water supply channel is filled with water, which is sprayed out by the second nozzle with the second water pattern.

The present application relates to the technical fields of irradiation crosslinking accelerator, and discloses an anti-radiation interference irradiation crosslinking accelerator beam baffle pneumatic control device, which comprises a beam baffle, a baffle support, a baffle rotating shaft, a gas control valve group, a pneumatic cylinder and a pipeline connection system, the beam baffle is connected with the baffle support through the baffle rotating shaft, and the piston rod of the pneumatic cylinder is in transmission connection with the baffle rotating shaft to drive the beam baffle to rotate; the gas control valve group comprises an electromagnetic valve, a gas control valve and a manual valve, and is fixed to the top of the mounting support; the pipeline connection system comprises a main pipeline, a branch pipeline, a quick connector, a filter and a check valve, and is connected with the air source and the pneumatic cylinder.The present application can use compressed air as the control medium to realize reliable control of the beam baffle in a strong radiation environment, avoids the technical problem that the electric control system is susceptible to radiation interference and has reduced reliability, and improves the operation stability of the irradiation crosslinking accelerator equipment in the radiation environment.

This utility model discloses a novel power supply device for a transceiver assembly, comprising a transceiver body and a controller. A housing is fixedly connected to the bottom of the transceiver body, and the controller is fixedly mounted on the inner wall of one side of the housing. A battery slot is fixedly installed at the bottom inner side of the housing, and a rechargeable battery is installed inside the battery slot. A spare power line is connected to one side of the outer surface of the battery slot, and a spare plug is connected to the other end of the spare power line. In this utility model, by setting up a motor-driven lifting assembly and a lateral movement assembly, combined with an electromagnet-type power failure detection mechanism, a rapid and reliable switching between mains power and a spare battery is achieved, effectively solving the technical problems of easy jamming of mechanical drives and easy malfunction of electronic detection in traditional solutions. Simultaneously, the modular plug-in design makes the power supply device compact and easy to maintain, significantly improving the stability and practicality of the transceiver assembly power supply system.

The application relates to the technical field of electric vehicle charging and discloses a wireless integrated battery charger for electric vehicles based on a motor driving system, which comprises a primary side system outside an electric vehicle and a secondary side system inside the electric vehicle; the secondary side system comprises a secondary coil, a secondary compensation capacitor, a secondary compensation network, a switch, a three-phase motor, a motor driver and a battery; the secondary coil is connected to the neutral point of the three-phase motor through the switch after being connected with the secondary compensation capacitor in series; the three-phase winding terminals of the three-phase motor are connected with the AC side of the motor driver, and the DC side of the motor driver is connected with the battery through a DC bus. The three-phase motor winding is used as the secondary compensation inductance of the receiving side, and the motor driver is reused as a high-frequency rectifier; the independently configured secondary compensation inductance and the special power conversion circuit are omitted, and the number of electrical components inside the electric vehicle is effectively reduced.

The utility model relates to a manual operation mechanism with a power-off function, which belongs to the technical field of electric actuators and comprises a base, a manual shaft, a hand wheel, a clamping piece and an elastic piece. A circumferential limiting block is arranged at one end of the manual shaft, and a first clamping groove and a second clamping groove are formed in the outer wall of the manual shaft; the clamping piece is acted by the elastic piece and abuts against the circumferential wall of the manual shaft, and a transmission shaft of the electric actuator is provided with a circumferential limiting groove matched with the circumferential limiting block. When the circumferential limiting block is inserted into the circumferential limiting groove, the clamping piece is clamped into the first clamping groove, the power-off push rod slides into the manual shaft power-off limiting groove under the action of the spring, and the microswitch is switched off to cut off a motor power supply; and during separation, the clamping piece is clamped into the second clamping groove, and the power-off push rod slides out to close the microswitch. Reliable switching between a manual mode and an electric mode is achieved through a mechanical structure, the power-off protection function is achieved, operation is easy and convenient, stability is high, misoperation is effectively avoided, and the electric actuator is suitable for various electric actuator scenes needing emergency manual control.

This invention discloses an underactuated robot leg and a flying robot with adaptive landing and grasping capabilities. The underactuated robot leg includes a frame assembly, symmetrically arranged first and second leg units, a first actuator, a second actuator, and a corresponding transmission mechanism. The frame assembly includes a frame plate and two support components. Each leg unit has a first leg structure and a second leg structure arranged side by side. Connected by the support components, the mounting plane of the first leg structure is lower than that of the second leg structure, forming a staggered layout. This invention reliably switches the underactuated robot leg between a passive adaptive stable support configuration, an active grasping configuration, and a folding and storage configuration simply by controlling the extension and retraction of the first and second actuators, solving the contradictory problem of balancing passive adaptive landing on undulating terrain and active grasping of objects within the same mechanism.

This invention discloses a switching multi-way directional valve for a straight boom crane, comprising: an oil inlet link, an oil circuit switching control link, and several proportional working links. The oil inlet link is connected to the several proportional working links via the oil circuit switching control link. The oil circuits of the oil inlet link, the oil circuit switching control link, and the several proportional working links are interconnected. The oil inlet link is externally connected to a pump source, which supplies oil to the oil inlet link. The oil circuit switching control link is also externally connected to a lowering multi-way valve. By switching the oil circuit switching control link, the oil inlet link is controlled to supply oil to the several proportional working links or the lowering multi-way valve. The proportional working links have four functions, which respectively control the four actions of hoisting, telescopic, slewing, and luffing. When the switching valve is in the spring position, the oil inlet link supplies oil to the hoisting, telescopic, slewing, and luffing actions. When the switching solenoid valve is energized, the oil circuit switches to supply oil to the lowering multi-way valve. The oil circuit connection is simple, the switching is reliable, and there will be no malfunctions. When the switching valve is stuck, it will not cause pump damage.

The invention is applicable to the technical field of stem cell culture carrier feeding devices, and provides a stem cell culture carrier feeding device and a using method thereof, the stem cell culture carrier feeding device comprises a rack, a culture medium bottle, an injection pump, a waste liquid bottle, a buffer bottle, a thermos bottle, an electric control board, a carrier feeding pipe, a vertical lifter, a pinch valve plate, a turntable and an injector; according to the invention, by integrating the vertical lifter, the pinch valve plate, the carrier feeding pipe, the turntable, the injection pump and other parts, automatic feeding of the stem cell culture carrier and automatic replacement of the culture medium are realized, the turntable can be used for placing a plurality of carrier bottles and accurately rotating and positioning, and the vertical lifter drives the pinch valve plate and the carrier feeding pipe to move up and down; the needle head structure at the lower end of the carrier input pipe accurately pierces the bottle cap of the carrier bottle to complete insertion and separation, the whole process is uniformly and coordinately controlled by the electric control board, manual uncovering operation is not needed, and the pollution risk is effectively reduced.

This invention proposes a method and system for engaging neutral (N) gear in a hydraulic parking gearbox after power-off, based on TCU control, belonging to the field of vehicle electronic control technology. The method includes: determining the vehicle's current state based on mileage signals and a preset threshold range; if in the factory testing phase, executing a first intelligent control mode, identifying the intention to exit the vehicle through the timing of door and engine signals, suppressing park (P) gear and maintaining N gear memory when engaging N, turning off the engine, or opening a door; if in the after-sales maintenance phase, executing a second intelligent control mode, matching the deep operation sequence of the shift lever with a preset template library, releasing park (P) gear and blocking door signals upon successful matching, ensuring N gear is maintained after power-off; simultaneously, real-time monitoring of signal status, triggering redundant control strategies in case of abnormalities. This invention achieves intelligent and safe maintenance of N gear after power-off throughout the vehicle's entire lifecycle, solving the problem of hydraulic parking gearboxes being unable to engage N gear when not in a running state.

The application discloses a kind of concrete internal curing agent for high-temperature underground chamber and its preparation method, belong to concrete material technical field.The internal curing agent is composed of sealing film liquid and superabsorbent polymer, sealing film liquid is compounded by epoxy modified polyurethane emulsion, nano silicon dioxide, carboxyl-containing acrylate copolymer, temperature-sensitive polyether polyol and coupling agent in proportion, form the core-shell structure with sealing film liquid as shell, SAP as core, with good high-temperature resistance and alkali resistance.The internal curing agent does not affect the working performance of concrete, in the high-temperature environment of 30~90 DEG C, when the hydration process of cement causes the pH value of pore solution in concrete to rise, the temperature of concrete rises and internal water shortage occurs, sealing film gradually ruptures under the synergistic effect of high temperature and high alkali, releases the water stored by SAP, provides the required free water for the continuous hydration of cement in concrete, effectively improves the strength and durability of concrete under high-temperature conditions.

This utility model relates to the field of telescopic sleeves, specifically to a telescopic sleeve length adjustment device. It includes a telescopic sleeve assembly consisting of an outer tube and at least one inner tube. The innermost inner tube has no limiting hole, while at least the second innermost inner tube of the outer sleeve has at least one limiting hole. A control area is provided at the bottom of the inner tube closest to the limiting hole, nested within the sleeve with the limiting hole. A limiting component and a reversing component are provided within this area. The limiting component includes a limiting tongue, a limiting shaft, and a limiting torsion spring, causing the limiting tongue to tend to extend outwards and engage with the limiting hole. The reversing component includes a reversing spring, a reversing shaft, and a reversing torsion spring. The first end of the reversing spring acts on the tail of the limiting tongue to maintain or release the retracted state of the limiting tongue. This device achieves automated telescopic extension and retraction of multiple sleeve sections, solving the problems of low efficiency and inconvenience in existing multi-section telescopic sleeves that require individual operation of each section.

The invention relates to a monorail crane bearing braking device which comprises a rack walking along a rail, braking assemblies located on the two sides of the rail are installed on the rack, each braking assembly comprises two braking push shafts connected to the rack in a left-right sliding mode, the two braking push shafts are arranged in a front-back mode, and the ends, close to the rail, of the braking push shafts are fixedly connected with braking pads; the brake assembly further comprises a telescopic cylinder assembly and two L-shaped brake connecting rods hinged to the rack, one ends of the L-shaped brake connecting rods are hinged to the brake push shaft, the two ends of the telescopic cylinder assembly are hinged to the other ends of the two L-shaped brake connecting rods respectively, and the telescopic cylinder assembly drives the brake push shaft to slide towards the rail when stretching out. By means of the automatic braking device, a hanging trolley, a man car or a lifting beam and other components have the automatic braking capacity, a centralized braking system of a locomotive driving braking part does not need to be depended on, and therefore the problems that due to the fact that an independent braking device is additionally arranged, the length of a locomotive is increased, and the manufacturing cost is increased are effectively solved.

The invention discloses a vehicle-mounted integrated temperature and humidity control system and a method thereof, and belongs to the technical field of vehicle-mounted refrigerators. In order to solve the technical problems that an existing vehicle-mounted refrigerator is low in air convection heat exchange efficiency and slow in initial cooling of objects, the heat exchange efficiency is improved in the mode that a liquid medium directly immerses or makes contact with the objects to be cooled. The system comprises a liquid heat management subsystem and a humidity control subsystem of a dehumidification unit and a humidification unit, wherein the liquid heat management subsystem and the humidity control subsystem form a two-way fluid loop through a fluid pipeline and a circulating pump; condensate water generated by the dehumidification unit is guided into the liquid loop through the recovery pipeline, the humidification unit takes water from the loop, and closed-loop utilization of water resources is achieved. And the central controller cooperatively controls the circulating pump, the heat exchange module and the humidity control unit, and automatically executes rapid cooling, humidification, dehumidification and mode switching according to the object placement, the environment humidity and the liquid level state. The temperature and humidity adjusting efficiency and the energy utilization rate in the vehicle-mounted environment are remarkably improved.

The utility model discloses a kind of heap turning device for straw compost, to solve the technical problem of existing technology mainly through artificial use shovel, fork and other farm implements to carry out heap turning operation, labor intensity is big, artificial cost is higher, including small agricultural loader, adapter and straw fork;Shovel is equipped with not less than 7 short fork teeth, short fork teeth include main part and inclined surface part;Adapter includes sleeve tooth part and plate bridging part;Sleeve tooth part includes sleeve part, first hollow cavity and clamping groove;When installation, first hollow cavity is limited to butt with short fork teeth, clamping groove is limited to butt with the lower edge of shovel, bridging part is detachably screwed with the inner wall of shovel;Straw fork includes installation part and long strip fork body, installation part and long strip fork body integrally form connection;Installation part includes second hollow cavity;When installation, second hollow cavity is butt with sleeve part;Installation part top and sleeve part are detachably screwed.

The application relates to the field of electronic technology, in particular to a current-controllable single / dual-direction switch circuit and a control method thereof, which comprises a driving circuit, a diode, a lithium battery, a generator and a switch tube circuit. The two or more than two transistors are connected in parallel through the setting of the switch circuit, the reaction time of controlling the direction of the lithium battery loop current can be improved, the driving circuit is connected with the control signal of the external device, the direction of the lithium battery loop current can be determined, and the switch circuit can work in a dual-control mode. The single / dual-direction switch circuit designed by the scheme also has the overcurrent protection function of the reverse current of the lithium battery loop when the external control signal is a bidirectional signal.

The application relates to a directional engineering exploration directional azimuth and distance detection device, and relates to the technical field of directional engineering exploration directional azimuth and distance detection. The directional engineering exploration directional azimuth and distance detection device comprises a total station body and a mounting seat, the total station body is arranged on the mounting seat, and a supporting mechanism is arranged on the side, away from the total station body, of the mounting seat; a protective sleeve is slidably connected to the mounting seat; a positioning seat is arranged on the mounting seat and can be in contact with the ground; a first driving mechanism is arranged on the mounting seat; when the bottom of the positioning seat is not in contact with the ground, the first driving mechanism drives the protective sleeve to slide in the direction close to the total station body to shield the total station body. In the application, the cooperation of the components enables the protective sleeve to move to a position covering the periphery of the total station body before the device is tilted and collides with the ground, thereby providing a physical barrier for the internal precise total station body and effectively reducing the damage caused by falling.