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55results about How to "Improve maneuverability" patented technology
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Agile satellite relay real transmission method and device based on attitude extrapolation and medium
PendingCN119652386AImprove maneuverabilitysimple engineeringRadio transmissionHigh level techniquesData acquisitionTrunking
The invention relates to an agile satellite relay real transmission method and device based on attitude extrapolation and a medium. The method comprises the steps that S1, a servo controller receives a relay satellite orbit sent by a satellite platform and extrapolates the position and speed of a relay satellite; s2, receiving GPS broadcast data, and determining the position and speed of a satellite platform; s3, attitude broadcast data are received, and satellite platform attitude extrapolation is completed; and S4, the relay antenna is driven to track the relay satellite through coordinate conversion and antenna limiting judgment. According to the method, relay link resources can be effectively utilized, the data return efficiency can be improved, meanwhile, the agile satellite can realize multifunctional and fast-response imaging efficiency by utilizing fast maneuvering, and the timeliness of data acquisition can also be ensured.
Owner:AEROSPACE DONGFANGHONG SATELLITE
Integrated nodal compliant mechanism of rope-driven active metamorphic topology
The application provides a kind of integrated node flexible variable mechanism of rope drive active deformation topology structure, it is related to flexible deformation device technical field, control is realized to large-span deformable structure by using rope drive, structural weight is reduced, and the operating performance of flexible deformation body mechanism is improved.The shortening of first winding makes the radius of annular framework larger;The shortening of second winding makes the length of annular framework longer;Between the first annular framework and the second annular framework, the first winding on the first annular framework is arranged on the first node on the second annular framework, and the second winding on the first annular framework is arranged on the first node on the second annular framework to realize active turning, which can reduce the stress applied to the mechanism by the outside when the pipeline moves, help protect the flexible structure, improve the system use time, and better adapt to complex terrain space scenarios, actively adjust the travel speed and direction to select the optimal path to improve work efficiency.
Owner:BEIHANG UNIV
Omni-directional decoupled ring vector tiltrotor aircraft and control method thereof
ActiveCN117485556Breduce lossavoid opposing forcesDepending on number of propellersPower plant typeGear wheelFlight vehicle
The application discloses a kind of high-efficiency omni-directional decoupling annular vector tilt-rotor aircraft and control method thereof, aircraft includes fuselage, fuselage driving gear set, four tilting mechanisms, four annular vector tilt-rotor power groups and electronic equipment etc.Parts.The aircraft described in the application can realize six degrees of freedom omni-directional pose decoupling flight, the attitude angle is omni-directional arbitrary angle in it, including roll angle, pitch angle and yaw angle, can realize arbitrary attitude hovering and flight of aircraft.The aircraft described in the application solves the controllable attitude angle limit of conventional variable tilt-rotor mechanism from structure, improves the ability of complex space activity of aircraft, and fundamentally solves the problem of power offset and power redundancy, reduces energy loss, improves power efficiency, prolongs endurance time, and is suitable for application scenarios requiring strong anti-interference and air physical interaction capability, and has important significance and value in the future.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Marine empennage
InactiveCN119659835AIncrease the bearing areaImprove lateral stabilityWatercraft hull designHydrodynamic/hydrostatic featuresWater flowMechanical engineering
The invention discloses a marine empennage, which relates to the technical field of ships, and comprises a ship shell of a wave-shaped flat bottom structure, and the upper end of the ship shell is fixedly connected with a deck used for covering the space in a ship and horizontally dividing the space into layers; the side, close to a deck, of the hull is fixedly connected with a cabin used for storing materials and allowing sailors to work and live, the outer wall of the side, away from the cabin, of the hull is fixedly connected with an empennage plate body used for keeping course stability and providing rotation or trim adjusting capacity, and dynamic wingspan expansion mechanisms are arranged on the two sides of the upper end of the empennage plate body. An arc wing guide swing mechanism is arranged at the center of the upper end of the empennage plate body, a trapping screen wing mechanism is arranged on one side of the tail end of the empennage plate body, plate wings and an electric telescopic rod are matched with each other, and the stress area of the empennage can be increased by improving the sailing performance and expanding the wingspan; therefore, larger lift force is generated under the condition of the same wind speed or water flow.
Owner:NANTONG HAIGUO MACHINERY
Multi-form adjustable sharp foreign matter extraction auxiliary device for gastroscope
PendingCN121796025AImprove comfortReduce secondary damageSuture equipmentsInternal osteosythesisForeign matterForceps
The invention belongs to the technical field of gastroscope sharp foreign body taking-out devices, and particularly discloses a multi-form adjustable gastroscope sharp foreign body taking-out auxiliary device which comprises a gastroscope head tube, one end of the gastroscope head tube is sleeved with a transparent tube cap, and folding rubber bags are evenly and fixedly installed on the outer surface of an auxiliary connecting end. According to the multi-form adjusting sharp foreign matter taking-out auxiliary device for the gastroscope, after the gastroscope lens tube is fed into the body of a patient and a sharp foreign matter is clamped, endoscope foreign matter forceps can be pulled to enable the sharp foreign matter to be close to the auxiliary connecting end, then air can be injected into the folding rubber bag through the ventilation channel, and the sharp foreign matter can be taken out through the ventilation channel. The folding rubber bag can be gradually expanded and expanded through air injection so as to shield the clamped sharp foreign matter, the sharp foreign matter cannot scratch the interior of the digestive tract of a patient in the taking-out process, secondary damage caused by the sharp foreign matter is reduced, and the comfort degree of the patient after the foreign matter is taken out is improved.
Owner:GUIDE COUNTY PEOPLES HOSPITAL
Intelligent water and fertilizer integrated irrigation machine with accurate proportioning mechanism
PendingCN119586410AEasy to operateImprove maneuverabilityManure treatmentLiquid fertiliser regulation systemsAgricultural scienceAgricultural irrigation
The invention discloses an intelligent water and fertilizer integrated irrigation machine with an accurate proportioning mechanism, and relates to the technical field of agricultural irrigation machines. The mixing bin is fixedly connected with the device shell, a transmission mechanism is arranged in the device shell, a raw material receiving bin is arranged at the top of the device shell, the device shell is connected with the raw material receiving bin through the transmission mechanism, a filter box is arranged at the rear end of the mixing bin, and the bottom of the filter box is connected with the mixing bin through an electromagnetic valve; a driving motor is arranged in the device shell, a mixing mechanism is arranged in the mixing bin, the driving motor can drive the conveying mechanism and the mixing mechanism to operate, and a filtering mechanism is arranged in the filtering box. Through the arrangement of the transmission mechanism, the transmission mechanism can adjust the usage amount of raw materials, so that the equipment can adjust the usage amount of the water and fertilizer raw materials more accurately, and through the arrangement of the mixing mechanism, when the transmission mechanism is started to operate by the driving motor, the mixing mechanism can also operate; therefore, the water and fertilizer raw materials can be uniformly mixed in the mixing bin more conveniently.
Owner:SHANDONG LIJIAN WATER SAVING IRRIGATION TECH CO LTD
A medicine applying device for gynecological vaginitis
The utility model discloses a kind of medicine applying devices for gynaecology vaginitis, belong to gynaecology medical instrument technical field, a kind of medicine applying device for gynaecology vaginitis, including push plate, push plate front end is fixedly connected with medicine applying structure, medicine applying structure inside is threadedly connected with injection structure, push plate rear end is fixedly connected with limit ring, push plate inner surface and limit ring inner surface are threadedly connected with push structure, it is cooperated by medicine applying structure and push structure, when gynaecology doctor treats vaginitis patient, capsule, tablet and powder drug can be quickly sent into patient vagina, complete medicine applying, by injection structure and medicine applying structure and push structure cooperation, so that device can also complete liquid medicine applying, eliminate limitation, by push structure, so that the controllability of device is higher, can effectively avoid to cause harm to the inside of patient's vagina, can realize the function of convenient liquid medicine and high operating precision, improve the practicality of device.
Owner:衡水市妇幼保健院
A four-legged desert vehicle
ActiveCN117382761Bcompact structureimprove passabilityClimate change adaptationVehiclesClassical mechanicsMechanical engineering
Owner:BEIJING INST OF SPACE LAUNCH TECH
An intracardiac bendable occlusion umbrella delivery sheath assembly and use method thereof
The present invention relates to the technical field of medical devices, and specifically discloses an intracardiac bendable occluding umbrella delivery sheath assembly and a method of use. The intracardiac bendable occluding umbrella delivery sheath assembly comprises: an outer sheath and an inner sheath; the outer sheath has a first through hole, including a first delivery channel, and the end of the first delivery channel has an adjustment portion; the inner sheath includes a second delivery channel, and the second delivery channel is connected to a bendable bending portion, the inner sheath is inserted into the first through hole of the outer sheath, and the relative position of the adjustment portion and the bending portion in the axial direction is adjusted, and the inner sheath is pushed against the posterior wall of the heart to adjust the angle of the inner sheath. The angle can be arbitrarily adjusted between 0-90° according to the structure of the heart of each different patient and the location of various defects, fistulas, and leaks, so as to successfully implant an occluding umbrella of suitable model.
Owner:SHANDONG FIRST MEDICAL UNIVERSITY FIRST AFFILIATED HOSPITAL (QIANFO MOUNTAIN HOSPITAL OF SHANDONG PROVINCE)
Discrete incremental sliding mode quadrotor control method based on neural network and disturbance observation
The application discloses a kind of discrete incremental sliding mode quadrotor control methods based on neural network and disturbance observation, belong to the field of quadrotor unmanned aerial vehicle, including steps: S1, considering the uncertainty factor of aircraft establishes six degrees of freedom quadrotor unmanned aerial vehicle model;S2, design disturbance observer and under the condition of gust modeling wind, design wind online predictor based on disturbance observer and neural network;S3, design the solution of sensor error, time delay based on neural network fault problem;S4, respectively in attitude loop and position loop design discrete incremental sliding mode fault-tolerant controller.The application has the advantages of strong robustness, high fault tolerance and high-precision control.
Owner:CHONGQING INNOVATION CENTER OF BEIJING INSTITUTE OF TECHNOLOGY
Hollow rotary drill bit based on controllable sharp nozzle
ActiveCN222639079UImprove stabilityImprove maneuverabilityPlantingFurrow making/coveringAgricultural engineeringDry sand
The utility model relates to the technical field of hollow rotary drill bits, in particular to a hollow rotary drill bit based on a controllable sharp nozzle, which comprises a drill bit body, a drill bit top collision block arranged on the surface of the top end of the drill bit body, a linkage platform limiting piece arranged on the inner side of the middle of the drill bit top collision block, and a pull rod top circular ring arranged on the surface of the middle of the inner side of the drill bit top collision block. A spiral hollow drill is arranged in the middle of the surface of the bottom end of the drill bit jacking block, a drill bit sharp mouth end is arranged on the surface of the bottom end of the spiral hollow drill, and a linkage pull rod is arranged on the surface of one side of the drill bit jacking block. The problem that a traditional method that a drill bit cannot be used for digging holes, placing seedlings and covering soil normally due to dry sand sinking during planting in the dry sand land is effectively solved, the function of planting long-strip-shaped crops such as saplings in the dry sand land is achieved through the hollow drill bit, and the whole device has the advantages of being high in stability, controllability, adaptability and transportability, simple in structure and easy to produce in batch.
Owner:SHANGHAI MANGZHI TECHNOLOGY CO LTD
Traveling unit and traveling vehicle
In order to achieve improvement in running stability and operability, improvement in freedom of design layout, ease of assembly and adjustment, and compliance with the riding feeling of the user with a simple configuration, on a running unit (140), a neutral restoration mechanism (160L, 160R) is provided which supports a pair of left and right wheels (155L, 155R) by upper and lower moving swing arms (151L, 151R) in a staggered linkage and has an extension member (165L, 165R) that extends and contracts in accordance with the swing of the swing arms (151L, 151R), the neutral restoration mechanism (160L, 160R) being configured so that the torque acting on the swing arms (151L, 151R) by the restoration force of the extension member (165L, 165R) is substantially constant and independent of the amount of swing of the swing arms (151L, 151R). The running vehicle is provided with the above-described running unit (140).
Owner:TSUBAKIMOTO CHAIN CO
Method for analyzing a fluorine-containing gas
ActiveCN117288902Befficient replacementEfficient and complete replacementHollow article cleaningMaterial analysisGas analysisThermodynamics
The scheme belongs to the technical field of gas analysis, and particularly relates to an analysis method of fluorine-containing gas. For pure fluorine gas analysis, the method comprises the following steps S10-S80: step S10: closing first valve, second valve, third valve, fourth valve, fifth valve and eighth valve, and opening first pressure reducing valve, second pressure reducing valve and third pressure reducing valve; step S20: slowly opening sixth valve and second valve in sequence, and closing sixth valve and second valve after 10 min of emptying; comprising the following steps K10-SK90: step K10: closing fifth valve, second valve, eighth valve, sixth valve, third valve, fourth valve and first valve, and opening first pressure reducing valve, second pressure reducing valve, third pressure reducing valve and seventh valve. The method is simple and convenient to operate, has high controllability and safety performance, air in the pipeline is sucked into the injection port of the Venturi tube, and then the air is discharged from the outlet of the Venturi tube, so that the air in the pipeline is efficiently and completely replaced, and the analysis result is more accurate and real.
Owner:EUROPE-CHINA ELECTRONIC MATERIALS CO LTD
Tower crane with safety braking device
ActiveCN224172359Uimprove securitySolve the problem of inability to shut down in an emergencyCranesBrakeControl engineering
The utility model relates to the field of tower cranes, in particular to a tower crane with a safety braking device. The tower crane comprises a tower crane body and at least two manual switches. The tower crane comprises a standard section, a cargo boom, a balance arm, a control room and an electric control cabinet, the cargo boom, the balance arm, the control room and the electric control cabinet are mounted on the standard section, a luffing mechanism is mounted on the cargo boom, a hoisting mechanism is mounted on the balance arm, and the electric control cabinet is used for supplying power to the luffing mechanism and the hoisting mechanism. The manual switches capable of directly disconnecting the power supply of the main line are mounted around the luffing mechanism and the hoisting mechanism, so that maintenance personnel can directly and timely perform power-off operation according to actual conditions, the safety of the maintenance personnel during working is effectively improved, meanwhile, a control room can also perform power-off operation, the power-off operation and the power-off operation do not influence each other, and the maintenance efficiency is improved. The overall safety of the device is improved, and the problem that an existing tower crane cannot be shut down emergently when the motor is maintained due to the fact that the installation interval between the motor and the motor switch is far is solved.
Owner:HEFEI ZHONGBAO MACHINERY MFG
Morphing aircraft level flight deceleration maneuver decision-making method based on reinforcement learning
ActiveCN119670575AImprove stabilityImprove maneuverabilityGeometric CADSustainable transportationAviationLevel flight
The invention relates to a variant aircraft level flight deceleration maneuver decision-making method based on reinforcement learning, and belongs to the technical field of aviation. Comprising the following steps: establishing a kinematics model and a dynamics model of a morphing aircraft; establishing an aerodynamic force and aerodynamic moment model of the morphing aircraft, and considering aerodynamic force and aerodynamic moment changes caused by morphing; an integral control structure of level flight deceleration maneuver is designed, PI control is used for the speed, backstepping control is used for the attitude angle to keep the attitude stable, and PID control is used for the height at the outer ring of the pitch angle to keep the height unchanged; designing a reward and punishment function of level flight speed reducer maneuver; designing an intelligent agent based on a reinforcement learning DQN algorithm, and discretizing possible degrees of left and right sweepback angles and V tail dihedral angles to adapt to a discrete action space of the DQN algorithm; according to the method, a reinforcement learning control method is used so as to ensure that the optimal aerodynamic force, flight efficiency and control efficiency can be achieved when the aircraft executes specific maneuver.
Owner:NORTHWESTERN POLYTECHNICAL UNIV
Electric automobile tire with high-modulus polyester tire body cord
PendingCN121928907AFully realize the carrying potentialavoid deformationPneumatic tyre reinforcementsTyre beadsPolyesterRolling resistance
The invention relates to the technical field of tire manufacturing, and discloses an electric vehicle tire of a high-modulus polyester tire body cord thread, by adopting the polyester cord thread with a specific parameter combination (low constant load elongation and low dry heat shrinkage rate) and controlling the elongation rate of the cord thread at a forming drum, the bearing potential of a tire body is directly maximized, and the tire body is not damaged. Therefore, the manufactured tire can meet the requirement of the electric automobile for high bearing capacity, and meanwhile, the tire has low rolling resistance and good maneuvering performance. The reinforced tire body can be used for building a firmer skeleton for the tire, so that stronger lateral support can be provided during high-speed steering, the deformation of the tire wall is effectively inhibited, and the control stability and the safety limit of a vehicle are synchronously improved.
Owner:ZHONGCE RUBBER GRP CO LTD +1
Engine exhaust nozzle for aerospace machine
The utility model discloses an engine exhaust nozzle for an aerospace machine. The engine exhaust nozzle comprises an engine shell; the fixed disc is fixedly arranged on one side of the engine shell; the tail spraying cylinder is connected with the inner cavity of the fixing disc in a matched and inserted mode; the tail spraying pipe is fixedly arranged on one side of the tail spraying cylinder and is communicated with an inner cavity of the tail spraying cylinder; the sound insulation protective cover is arranged on the outer side of the fixed disc; the adjusting mechanism is arranged on one side of the fixed disc; and the dismounting and fixing mechanism is arranged between the sound insulation protective cover and the fixing disc. According to the engine exhaust nozzle for the aerospace machine, by arranging the adjusting mechanism, the position of the support can be pulled so as to drive the exhaust nozzle to deflect up and down around the exhaust nozzle barrel, and therefore the direction of jet flow can be changed, the thrust adjusting capacity, the flight efficiency and the maneuverability of the aerospace machine can be improved, and the performance and flexibility of an aircraft can be improved.
Owner:BEIJING XIN CHENG ZHU YE RENFANG ENG PROTECTION EQUIPM
Method for calibrating time delay feasible region of parameters of active front wheel steering time delay feedback controller
The application discloses a kind of active front wheel steering time delay feedback controller parameter time delay feasible region's calibration method, and include steps: 1) the vehicle system model of active front wheel steering feedback controller including time delay is established;2) by constructing Lyapunov-Krasovskii functional, time delay independent stability parameter region is solved;3) by Laplace transform solving system characteristic equation, obtain stability discriminant polynomial;4) it is solved to the minimum critical time delay that can be tolerated under time delay independent stability region and time delay related stability zone under different control parameter combinations of system.This application can provide reference for controller stability design, compared with traditional active front wheel steering controller without considering time delay, can more effectively judge whether system meets stability requirement, and reduce control parameter adjustment range, so as to reduce test cost in actual engineering, guarantee the stability of vehicle control system.
Owner:HEFEI UNIV OF TECH
Loop emergency stop control circuit and loop emergency stop control method
The application provides a looper emergency stop control circuit and a looper emergency stop control method. The circuit comprises a signal trigger circuit, a bypass switch, a signal output circuit, a logic control unit and an emergency stop output control circuit. The signal trigger circuit is connected with the bypass switch and the signal output circuit respectively, and the logic control unit is connected with the signal trigger circuit, the bypass switch, the signal output circuit and the emergency stop output control circuit respectively. By switching the bypass switch, the looper trolley will not trigger the emergency stop when triggering the limit switch in the case of production line maintenance. The technical scheme of the application can avoid the technical problem that the looper trolley needs to use the hard-wired shielding emergency stop signal or remove the limit switch to avoid triggering the emergency stop when passing through the limit switch in the jog operation mode.
Owner:SHOUGANG JINGTANG IRON & STEEL CO LTD
Building wall surface strength detection device
ActiveCN222635992UImprove maneuverabilityimprove accuracyInvestigating material hardnessSupport planeWedge shape
The utility model relates to the technical field of building wall body detection, in particular to a building wall surface strength detection device which comprises a rebound apparatus body, containing grooves are formed in the two sides of the rebound apparatus body, auxiliary supports are rotatably connected in the containing grooves, the auxiliary supports are used for keeping the rebound apparatus body perpendicular to a wall body, and the rebound apparatus body is provided with a plurality of grooves. Meanwhile, the auxiliary support can be hidden in the storage groove and can be fixed through the fixing part, so that the auxiliary support is convenient to store and carry, and operation is more convenient and faster; when the auxiliary support is stored, firstly, a T-shaped groove is separated from a T-shaped block, then a supporting frame is rotated to enable a connecting plate to be located at the rear end of the rebound apparatus body, then the connecting plate is rotated to enable the T-shaped block to be connected with the T-shaped groove in a clamped mode, the connecting plate is pressed downwards to enable a fixing hole to be connected with an inserting block in an inserted mode, and then two wedge-shaped blocks are pushed through the elastic force of a spring. And the lower end of the wedge-shaped block is clamped with the upper end of the connecting plate.
Owner:XINDI ENERGY ENG TECH
Aircraft linear driving device
PendingCN119611743Anice appearancereduce volumeWith power amplificationUndercarriagesLow noiseFlight vehicle
The invention discloses an aircraft linear driving device which comprises a shell, a motor and a lead screw are arranged in the shell, the output end of the motor is connected with the lead screw through a connecting piece, a lead screw nut is installed on the outer side of the lead screw, a sleeve is installed on the lead screw nut, a top head is detachably installed at one end of the sleeve, and the top head is detachably installed on the other end of the sleeve. A plug matched with the sleeve is installed at one end of the shell. With the structural characteristic of vertical extension and retraction of the push rod, the device has the characteristics of attractive appearance, small size, low transmission resistance, low noise, convenience in installation and the like; the aircraft has the precise control capability, high-precision power output can be provided, precise control over all parts of the aircraft, including a control surface, a flap, an undercarriage and the like, is achieved, and therefore the maneuverability and the flight performance of the aircraft are improved.
Owner:BESTMAN AUTOMATION TECH (SUZHOU) CO LTD
Reversible locking device for automobile checking fixture
ActiveCN224088994UImprove stabilityAvoid flip situationsWork benchesMotor vehicle partElectric machinery
Owner:NANTONG XINWEINA MASCH TECH CO LTD
Automatic metering control irradiation cabinet
ActiveCN224400093UAvoid exceeding preset rangesMonitor radiation intensityIrradiation devicesDosimeterEngineering
The utility model discloses an automatic metering control irradiation box relates to irradiation box technical field, and the right side of device main part is equipped with drive mechanism, and drive mechanism top connects irradiation mechanism, and drive mechanism bottom is connected with rotating mechanism, and the inside of device main part is equipped with protection mechanism, and protection mechanism is located rotating mechanism outside both ends, device main part bottom is connected with rotating mechanism, and protection mechanism top is installed infrared camera, and protection mechanism rear end is installed with radiation dosimeter, and radiation dosimeter is connected with irradiation equipment circuit. Through setting up infrared camera and radiation dosimeter outside protection mechanism, can make irradiation equipment when carrying out irradiation operation to article, can monitor the temperature of article outside through infrared camera, and radiation dosimeter also can monitor irradiation intensity simultaneously, thereby make the irradiation ray of irradiation equipment too strong or too weak, can adjust through the information feedback of infrared camera and radiation dosimeter.
Owner:GUANGZHOU FURUI GAONENG TECH CO LTD +1
Semi-active suspension damping control method, system, medium, control terminal and vehicle
The present disclosure provides a semi-active suspension damping control method, system, medium, control terminal and vehicle, the method comprising the following steps: acquiring sensor collected signals and vehicle CAN signals for semi-active suspension damping control; acquiring physical signals in the vehicle operating state based on the sensor collected signals and the vehicle CAN signals; generating current signals corresponding to skyhook control, comfort boundary control and handling stability boundary control based on the physical signals; acquiring the expected electromagnetic valve driving current of the semi-active suspension based on the current signals; generating a damping control current based on the expected electromagnetic valve driving current and the actual electromagnetic valve driving current, and providing the damping control current to the shock absorber of the semi-active suspension to realize damping control. The semi-active suspension damping control method, system, medium, control terminal and vehicle of the present disclosure can realize high-precision damping control and have strong controllability.
Owner:SHANGHAI BAOLONG AUTOMOTIVE CORP
A moxibustion cup fixing device
This utility model discloses a moxibustion jar fixing device, relating to the field of moxibustion jar installation. It includes a support structure, adjusting arms, and a fixing structure. Two sets of adjusting arms are symmetrically fixed to the top two sides of the support structure. Two sets of fixing structures are fixed to the front ends of the two sets of adjusting arms. The fixing structure includes a clamp and a wing bolt, with the wing bolt threaded to the clamp. The support structure includes a counterweight base, a storage rod, a rotating handle, an extension rod, and a fixing seat. The bottom end of the storage rod is fixedly connected to the top of the counterweight base. The storage rod has a hollow design, and the extension rod is inserted inside the storage rod. This utility model provides a moxibustion jar fixing device that can securely fasten the moxibustion jar using the fixing structure and adjust its position using the adjusting arms. This allows medical personnel to easily adjust the position of the moxibustion jar according to the patient's body shape, enabling the moxibustion jar to be aligned with acupoints for treatment. It is simple, convenient, and highly controllable.
Owner:施孝捷
Simple drilling equipment
ActiveCN222643283Ucope wellreduce volumePositioning apparatusMetal-working holdersElectric machineryScrew thread
The utility model discloses simple drilling equipment which comprises a base and a drill bit assembly, the drill bit assembly comprises a motor, a drill bit and a storage battery, the base is provided with a liftable table board assembly, one side of the base is provided with a lifting assembly, the lifting assembly comprises a stand column, the stand column is fixed to one side of the base, a rectangular groove is formed in the stand column, and the motor is connected with the lifting assembly. A threaded rod is rotationally installed in the rectangular groove and is in threaded connection with an installation box, the drill bit assembly is installed in the installation box, and a handle is fixed to the end, penetrating out of the stand column, of the threaded rod. Through the arrangement of the drill bit assembly, the lifting assembly and the table board assembly, the device can achieve drilling operation, the size is small, carrying is convenient, the problem of hand shaking is avoided, the situation of simple drilling can be better coped with, and practicability is high.
Owner:宋军华
Tail combination jet and suction flow-based differential pressure driving turning method and device
PendingCN122585413ASolve the problem of low speed failureStrong low-speed steering ability
The application provides a differential pressure driving turning method and device based on tail combined jet flow and suction flow, and the method comprises the following steps: constructing combined jet flow and suction flow excitation circuits with zero net mass flow on the left and right sides of the tail of an underwater vehicle respectively; independently regulating and controlling the start-stop and working intensity of the combined jet flow and suction flow excitation circuits on the left and right sides by a control unit, so that flow separation bubbles and local low-pressure areas are formed on one side of the tail or flow separation bubbles and local low-pressure areas with different intensities are formed on both sides of the tail; a yawing moment is generated by the differential pressure of the tail, effective turning force can still be provided under low-speed working conditions, and the low-speed failure problem of traditional rudders is solved; the structure is simple and convenient to modify: there is no exposed mechanical rudder surface and multiple propeller structure, the circuits are integrated in the tail, and the modification cost is low and the adaptability is strong.
Owner:HARBIN INSTITUTE OF TECHNOLOGY (SHENZHEN) (INSTITUTE OF SCIENCE AND TECHNOLOGY INNOVATION HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN)
Externally-hung balcony unmanned aerial vehicle take-off and landing device
ActiveCN224225338UReduce the difficulty of taking off and landingeasy landingUncrewed vehicleControl theory
Owner:张旭 +1
Wind driven generator variable-speed magnetic coupling transmission system and method capable of participating in primary frequency modulation of power grid
PendingCN119602536ASimple structural designreduce volumePower oscillations reduction/preventionPermanent-magnet clutches/brakesConstant frequencyElectrical conductor
The invention discloses a wind driven generator variable-speed magnetic coupling transmission system and method capable of participating in primary frequency modulation of a power grid. The system comprises fan blades, a driving shaft, a driving shaft bearing seat 3, a magnetic coupler, a steel wire shaft, a driven shaft I, a transverse transmission bearing, a base, a transverse displacement speed regulating mechanism, a driven shaft II, a driven shaft bearing seat, a generator, a chassis and a tower. A plurality of layers of copper ring conductors and permanent magnet ring concentric cylinders which are alternately arranged are arranged on a driving disc and a driven disc, efficient transmission of torque is achieved, meanwhile, friction and vibration are reduced, normal operation of a system is guaranteed, and the service life is prolonged; the speed regulating mechanism is used for maintaining the synchronous rotating speed of the generator, thereby improving the generating efficiency. The speed regulation device is applied to the rotating shaft of the power driving system of the wind driven generator, and the driven disc is controlled to displace through the speed regulation device, so that the effect of controlling the magnetic force is achieved, the synchronous rotating speed of the generator is maintained, and electric energy with constant frequency is output to facilitate direct grid connection of the wind driven generator.
Owner:TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
Aircraft tractor wheel holding mechanism based on hydraulic labor-saving lever
ActiveCN224090430UImprove maneuverabilityimprove securityGround installationsHydraulic cylinderAircraft landing
The utility model discloses an aircraft tractor wheel holding mechanism based on a hydraulic labor-saving lever. The aircraft tractor wheel holding mechanism comprises a tractor body, a lifting assembly and a clamping component. Wheels distributed in a rectangular shape are arranged on the periphery of the vehicle body, and a U-shaped installation opening is formed in the position, located on the inner sides of the wheels, of one side of the vehicle body. The lifting assembly is arranged in the U-shaped mounting opening, a connecting plate is arranged on the side, away from an opening of the U-shaped mounting opening, of the U-shaped mounting opening in an up-down rotating mode through a bearing, a U-shaped base is fixedly arranged at the end, away from the hinged end of the connecting plate, of the connecting plate, and jacking hydraulic cylinders are symmetrically and fixedly arranged on the two sides of the interior of the U-shaped mounting opening. The rotating shaft is used for integrally rotating the connecting plate and the U-shaped base up and down; the clamping component is arranged on the U-shaped base and used for holding and loosening the airplane wheel. The aircraft tractor wheel holding mechanism based on the hydraulic labor-saving lever is suitable for pulling up and clamping aircraft landing gears with different aircraft wheel sizes, and is reasonable in structural design, safe and reliable.
Owner:XIAOTANG (TIANJIN) TECH CO LTD