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74 results about "Operational stability" patented technology

Stability operations generally place the military in direct, prolonged contact with civilian populations and generally involve the intentional restructuring or resetting of the civilian population’s relationship with their government.

Micro-grid layered stability control method and system

The invention discloses a micro-grid layered stability control method and system, and relates to the technical field of micro-grid control. Periodic data and instruction signals of upper and lower layer control links of a micro-grid are collected, and reverse adjustment delay amount and an idle stroke deviation value during period switching are calculated; processing to obtain a period difference index and a collaborative adaptation index containing an impact coefficient; analyzing a time sequence action relationship between the period difference index and a micro-grid adjusting link, and calculating a connection deviation coefficient of a control rhythm by counting lagging frequency and amplitude of instruction response; potential problems of a micro-grid control link can be found in advance, stable operation time is prolonged through strategy adjustment when the instability risk is low, maintenance is conducted in time before the risk rises, power failure accidents caused by layered control mismatch are reduced, and the operation stability and reliability of the micro-grid are improved especially for the micro-grid with the high new energy proportion and large fluctuation.
Owner:GUANGZHOU TONGLI NEW ENERGY CO LTD

Gas cylinder filling method, early warning method, checking method, system and medium

The invention relates to a gas cylinder filling method, an early warning method, an assessment method, a system and a medium in the technical field of industrial safety production. The gas cylinder filling safety assessment method based on voice analysis comprises the following steps: acquiring acoustic data of an operator; and analyzing the acoustic data and calculating to obtain a knowledge proficiency score Spro. And acoustic data are extracted, and a psychological quality score Semo is obtained through calculation. Collecting motion posture data of the gas cylinder and calculating to obtain an operation stability score Ssta; and carrying out weighted fusion on the Stro, the Semo and the Ssta to obtain an assessment score Stotal. And setting a score line based on the assessment requirement, and if the Stotal is greater than or equal to the score line, determining that the operator passes the assessment. According to the invention, through innovative multi-mode assessment, the ability of the operator is changed from feeling-based ability to data-based ability, the final result can be known, and the specific weak link can be known according to the specific condition of each link, so that the psychological quality and emergency response ability of the operator can be effectively assessed.
Owner:ANHUI SPECIAL EQUIP INSPECTION INST

A four-way shuttle vehicle jacking mechanism

This utility model discloses a lifting mechanism for a four-way shuttle vehicle, belonging to the technical field of four-way shuttle vehicles. The lifting mechanism adopts a side-mounted layout, including a reversing motor, a reversing gearbox, and a reversing transmission assembly connected to it. Through a combination of shaft transmission, gear transmission, and eccentric wheel transmission, it drives the lifting frames on both sides of the vehicle body to rise and fall synchronously, thereby realizing the lifting and reversing actions of the X-direction traveling wheels. The reversing motor drives the first reversing bevel gear to rotate the main shaft, transmitting power through the reversing transmission gearbox and eccentric wheel structure. The lifting frames are slidably mounted on the vehicle body via guide rails and are equipped with guide columns and guide seats to improve operational stability. This lifting mechanism avoids the space occupied by the traditional centrally located drive shaft, effectively freeing up battery installation area and improving range. It also has advantages such as compact structure, high transmission efficiency, stable operation, and easy maintenance, making it suitable for various working conditions and possessing good versatility and application prospects.
Owner:KUNMING OUMAI TECH CO LTD

Error determination method and device of motion execution mechanism, equipment and storage medium

The invention discloses a motion execution mechanism error determination method and device, equipment and a storage medium. The method comprises the following steps: acquiring instruction data corresponding to a motion control instruction of a motion execution mechanism; collecting displacement data of the motion execution mechanism in the process of executing the motion control instruction; and determining the motion error of the motion execution mechanism according to the instruction data and the displacement data. According to the scheme, an error analysis mechanism based on the instruction data and the actual displacement data is introduced, so that the motion performance of the motion execution mechanism is accurately evaluated and quantified. According to the scheme, the positioning precision and the overall operation stability of the motion executing mechanism can be remarkably improved, and the requirements of scenes such as high-precision industrial automation, robot operation and precision machining can be met.
Owner:YUZHI TECHNOLOGY (ZHUHAI) CO LTD

Nut sealing cap tightening device

The utility model discloses a nut sealing cap tightening device, and aims to provide a nut sealing cap tightening device which is convenient for continuous batch tightening operation and improves the tightening efficiency. The nut cap sealing device comprises a twisting base, the twisting base is provided with a storage cavity, a cavity opening in one end of the storage cavity is provided with a discharging opening, a muzzle in the other end of the storage cavity is provided with a feeding opening, a plurality of nut cap sealing bodies are slidably connected into the storage cavity, and the twisting base is provided with an anti-skid push rod, a limiting rod and a fixing rod; the limiting rod and the fixing rod are movably connected with the twisting base through the anti-skid push rod, the limiting rod is arranged at the feeding port, and one end of the fixing rod is connected with the nut cap sealing body closest to the feeding port in a pressing mode. The nut sealing cap screwing device has the advantages that the screwing efficiency and the screwing degree of a nut sealing cap are improved through the screwing device; batch tightening operation is realized; the device is compact in structure and convenient to operate; the use convenience of the device is improved; the locking operation stability of the nut sealing cap is improved; and the operation stability and efficiency of the device are improved.
Owner:HANGZHOU PINGZE TECH

Workpiece storing and conveying equipment

The invention provides workpiece storing and conveying equipment, which relates to the technical field of machining equipment and particularly comprises a bearing frame, a bearing mechanism and a lifting mechanism. The lifting mechanism can slowly release and lift the workpiece, surface scratching and structural damage of the workpiece caused by direct friction and collision between the heavy workpiece and the bearing frame or the bearing piece in the placing process are avoided, the sliding fit piece on the surface of the bearing piece can be in sliding fit with the workpiece so as to reduce moving resistance, the workpiece can be conveyed more stably, and the work efficiency is improved. The anti-skid piece can make contact with the workpiece after the workpiece is completely attached to the containing platform, so that the workpiece can be stably placed on the containing platform, the operation stability and reliability are improved, dependence on a crane and manual fine operation is reduced, then safety risks caused by manual carrying of heavy workpieces are reduced, the feeding and discharging efficiency is improved, and the labor intensity of workers is lowered. The technical problems that in the prior art, safety is poor, efficiency is low, workpieces are prone to being damaged, and manual operation intensity is large are solved.
Owner:NINGBO SIDIANLING TECHNOLOGY CO LTD

A quick change abrasive blasting head assembly

This application discloses a quick-change abrasive coating nozzle device, including a mounting frame and a nozzle body. The mounting frame is installed on the spraying equipment, and the nozzle body is connected to the mounting frame via a locking part. The mounting frame is provided with a connecting sleeve, and the top of the nozzle body is provided with a mounting sleeve that passes through the connecting sleeve. The locking part includes multiple sets of locking components and a starting ring. The locking components can switch between compressed and expanded states. In the expanded state, they are locked inside the connecting sleeve, and the starting ring is sleeved on the connecting sleeve. Rotation can switch the state of the locking components. A connecting pipe is provided inside the connecting sleeve. One end of the nozzle body is provided with a liquid inlet pipe, and the other end is provided with a nozzle. The connecting pipe is connected to the liquid inlet pipe and a sealing component is provided between them. The connecting pipe is also connected to the spraying equipment. This device can realize tool-free quick disassembly and assembly of the nozzle body, simplifying the replacement process and shortening the replacement time. At the same time, the sealing component reduces abrasive leakage, improves the operational stability of the device, and ensures continuous abrasive coating operations.
Owner:JIANGSU SANLING ABRASIVES CO LTD

Detection device

The utility model provides detection equipment, which comprises a rotating base body, a rotating shaft, a rotating shaft and a driving device, and is characterized in that a through hole is formed in the rotating base body; the lifting assembly comprises a lifting frame and a plurality of ejector pins, the ejector pins are located in the through holes and used for conducting lifting motion in the through holes, the lifting frame is used for supporting the ejector pins in the ascending process and disengaging from the ejector pins after descending, and the lifting frame and the rotating base body are arranged in a separated mode. The operation stability of the detection equipment is improved.
Owner:SHENZHEN PLANCK SEMICON TECHNOLOGY CO LTD

A multi-cylinder synchronous jacking control system based on displacement and pressure double feedback

This invention relates to the field of synchronous control technology and discloses a multi-cylinder synchronous lifting control system based on dual feedback of displacement and pressure. The invention aims to solve the technical problems of low synchronization accuracy and unstable operation caused by adjustment lag in existing displacement feedback synchronous control systems. This invention collects displacement and pressure data from each lifting unit in real time, generates basic control commands for error correction based on displacement deviation, and generates pressure compensation commands for load prediction based on pressure deviation. These two commands are then superimposed into a composite control command, achieving precise control of each unit. By combining displacement feedback and pressure compensation, this invention achieves proactive response to load changes, effectively suppresses adjustment lag, and thus improves the synchronization accuracy and operational stability of the system.
Owner:NANJING CHINA CONSTR EIGHTH BUREAU INTELLIGENT TECH CO LTD +1

A method for designing marine energy utilization blades and the designed impeller

ActiveCN119885458BImpellerMarine engineering
This invention discloses a design method for marine energy utilization blades and the designed impeller. Based on a spherical profile lift-drag combined design concept, the marine energy utilization blade consists of a helical blade and two booster blades, one at the top and one at the bottom. The helical blade is determined by the initial airfoil line along the scanning path of the helical blade. The two booster blades are respectively connected to the upper and lower ends of the helical blade, and are determined by a bucket-shaped profile along the spherical arc guide line. The impeller consists of three sets of blades, a central shaft, and two end plates, all connected spherically. The three sets of blades are evenly distributed on the spherical profile. The central shaft is connected to the upper and lower end plates, providing support for rotation. The upper and lower end plates provide support and fixation, and are connected to the power generation device. This invention's impeller can achieve efficient and stable operation in omnidirectional low-velocity flow environments such as deep seas, and has advantages such as omnidirectional response to unpredictable ocean currents, high self-starting capability and operational stability, and optimized structural parameters for efficient operation.
Owner:CHINA DATANG GRP TECH INNOVATION CO LTD +1

Buffer device for front spray of washing and sweeping vehicle suitable for working condition and working method thereof

This invention belongs to the field of sanitation equipment technology and discloses a buffer device for front spraying of a sweeper truck suitable for various operating conditions, as well as its working method. The device includes a suspension assembly, a self-resetting buffer assembly, a spraying assembly, a protective assembly, and a height adjustment assembly. The height adjustment assembly drives overall height adjustment. The self-resetting buffer assembly adopts a four-bar structure consisting of a pull rod, a one-way pressing cylinder, and a self-resetting bracket. The one-way pressing cylinder has a one-way flow control structure inside, creating different damping characteristics in the pressure and rebound directions, achieving impact buffering and automatic reset functions. Simultaneously, through asymmetrical adjustment of the pull rod length, the device has a larger lever arm and lower trigger load on the high-frequency collision side, adapting to the actual working conditions of edge-following operations. This invention has a reasonable structure, enabling rapid avoidance and automatic reset under relatively small impact loads, effectively reducing structural damage and skewing risks, reducing maintenance frequency, and improving the operational stability and service life of the sweeper truck.
Owner:JINGSU YUEDA SPECIAL VEHICLE CO LTD

Part-replaceable end-bottom integrated equipment bracket and preparation method thereof

The invention provides an end-bottom integrated equipment bracket capable of replacing parts. The end-bottom integrated equipment bracket comprises a left end bracket, a right end bracket and a bottom bracket, the left side end support comprises a left diagonal draw bar, a first side draw bar and a first main beam lower connecting lug piece. The right side end support comprises a right diagonal draw bar, a second side draw bar and a second main beam lower connecting lug piece. The left side end support and the right side end support are symmetrical about the central axis of the equipment support. The bottom support comprises a first long rod, a second long rod, a left inclined rod, a right inclined rod, an equipment small bracket, a connector lug, a two-pipe connector, a three-pipe connector and a middle connector lug. According to the equipment support, the end supports on the two sides and the bottom support are combined into a whole, the repeated supporting part is omitted, the weight of the equipment support is reduced, and the positive influence on the flight performance and operation stability of an aircraft is achieved.
Owner:CHINA ACAD OF AEROSPACE AERODYNAMICS

Novel anti-falling device with high stability

The utility model discloses a novel anti-falling device with high stability, which belongs to the technical field of anti-falling devices and comprises a flexible guide rail and a clamping mechanism. The clamping mechanism comprises a first mounting plate, a clamping block and a lifting adjusting assembly, the first mounting plate is movably connected with the flexible guide rail through a first movable hole formed in the shaft portion of the first mounting plate, and a plurality of sliding grooves are formed in the first mounting plate; the clamping blocks are connected with sliding blocks, the side portions of the sliding blocks are connected with protrusions, the clamping blocks are connected into the sliding grooves in a sliding mode through the sliding blocks and the protrusions, the cross section of the side portion, close to the flexible guide rail, of each clamping block is in an arc shape, and the arc shape is matched with the peripheral size of the flexible guide rail. The lifting adjusting assembly is connected with the clamping block and used for adjusting the clamping block to be close to or away from the flexible guide rail. According to the design, the high-altitude operation personnel can be prevented from falling during working, the structure is simple, operation is convenient, and stability is high.
Owner:ANHUI HUAXI ELECTRIC POWER TECH CO LTD

Stacker column adaptive balance and eccentric load adjusting device

This invention relates to the field of stacker crane technology, specifically to a stacker crane column adaptive balancing and off-center load adjustment device, comprising a horizontal track, a horizontal moving platform, a vertical track, a vertical moving platform, and a loading platform. The vertical moving platform is equipped with an adjustment mechanism for adaptively adjusting off-center load. The adjustment mechanism includes a U-shaped tube installed inside the vertical moving platform, with its two open ends facing the surface of the vertical track. This invention addresses problems such as tilting of the vertical moving platform, unilateral wear of the track, and unstable operation caused by off-center load on the loading platform by incorporating an adaptive adjustment system within the vertical moving platform. When off-center load causes tilting, a gravity pendulum drives a piston inside the U-shaped tube via a connecting rod to generate a pressure difference, thereby controlling the rotation of the pressure plate and dynamically adjusting the pressure distribution of the upper and lower pulleys on the vertical track, generating a reverse torque to counteract the off-center load effect in real time. Real-time dynamic balancing can be achieved without external control, effectively suppressing tilting, equalizing wear, and improving operational stability and accuracy.
Owner:FRANDO INTELLIGENT TECH (CHANGSHA) CO LTD

A flying ball car

This invention relates to the field of ultra-low-altitude aircraft technology, specifically to a flying scooter, comprising a flight propulsion unit, a cockpit, a landing gear assembly, and a control unit. The landing gear assembly includes multiple landing gear legs and is located below the cockpit. The control unit is electrically connected to both the flight propulsion unit and the landing gear assembly. The flying scooter includes a flight state in which the landing gear legs can extend and retract axially. The bottom ends of the landing gear legs contact the ground, and the top ends of the landing gear legs connect to the bottom of the cockpit to measure the distance between the cockpit and the ground in real time. The control unit controls the flight propulsion unit according to the distance; when the distance increases, the propulsion unit reduces its power; when the distance decreases, the propulsion unit increases its power. This solves the problems of poor operational stability and low passenger comfort in flying scooters.
Owner:BEIJING XIAODUOMIFIE INTELLIGENT TECHNOLOGY CO LTD

Push buckle mechanism and riveting machine thereof

According to the technical scheme, a base plate is fixedly arranged in a machine shell of the riveting machine, a button feeding push rod, a clamping component and a releasing mechanism are arranged on the base plate, when the button feeding push rod is driven to feed buttons, the clamping component arranged in a matched mode clamps the button stably and then sends out the button, and meanwhile the button feeding push rod is driven to feed the buttons. The clamping component opens the feeding port through the releasing mechanism to conduct button connecting, specifically, the releasing mechanism abuts against the clamping part to widen the feeding port to conduct button connecting, button connecting can be stable when the feeding port is in the widening state, sewing buttons are conveyed into the feeding port through the mechanical vibration disc, and after button connecting is conducted through the feeding port, the button conveying push rod pushes the sewing buttons to be discharged. According to the button feeding mechanism, the button can be stably pushed through the clamping component, meanwhile, the clamping component is released through the releasing mechanism, stable operation is further achieved, and the button feeding mechanism has the advantage of being high in working stability.
Owner:GUANGDONG DASUN TECH CO LTD

A control host for a wireless water-air two-phase spray dust suppression device for mining

This utility model provides a control host for a wireless water-air two-phase spray dust suppression device in mines, belonging to the field of mine safety and environmental control technology. It includes a supporting mechanism comprising a fixing component, a base mounted on the fixing component, and a mounting block mounted on the base; a spraying mechanism mounted on the supporting mechanism for performing water-air two-phase spraying operations; and a control component including a controller and a connector, the controller being electrically connected to the spraying mechanism for controlling spraying parameters. This utility model, by incorporating a controller with wireless communication capabilities, a modular and detachable connection structure, and a standardized interface, improves the adaptability, system compatibility, and ease of maintenance of the control host in complex mine environments, effectively solving the technical problems of low intelligence, poor operational stability, and limited applicability of traditional mine spray dust suppression control equipment.
Owner:QUFU DONGXIN KEAN MINING MASCH CO LTD

Full-automatic lining installation box

The invention relates to the technical field of machine installing boxes, in particular to a full-automatic lining machine installing box which comprises a lining forming part, and the upper portion of the lining forming part is sequentially provided with a transplanting material taking part, a bottle conveying part, a lifting grabbing part and a rotating swing arm from left to right. The feeding and conveying part is mounted on one side of the lining forming part, and the box frame part, the pushing part, the box pressing part, the box carrying part and the box discharging part are sequentially mounted on the upper portion of the other end of the feeding and conveying part. According to the full-automatic lining machine installing box, the high-performance servo motor is adopted for driving, the stability of the whole operation process is guaranteed, rapid and accurate grabbing and placing operation of bottles is achieved, and the production efficiency and the operation stability are remarkably improved.
Owner:CHANGZHOU SERIC PACKAGING MASCH CO LTD

Elevator governor and elevator

To provide an elevator governor and elevator with excellent operational stability and reliability. [Solution] In a disc-type speed governor 50 in which the flyweight 53A rotates due to the centrifugal force caused by the rotation of the sheave 52, the engaging claw 54 rotates and engages with a ratchet 56 which is arranged coaxially with the sheave 52, causing the ratchet 56 to rotate integrally with the sheave 52 and activating a rope gripping mechanism which is operatively connected to the ratchet 56, the flyweight 53A and the engaging claw 54 are arranged on either side of the disc surface of the sheave 52 and are integrated via a shaft 55 which is inserted through a through hole 52b formed in the disc surface, and rotate integrally with the shaft 55 as the axis of rotation.
Owner:FUJITEC CO LTD

A palletizing lift

This application relates to a palletizing elevator, specifically in the technical field of palletizing and lifting. The palletizing elevator includes a frame and a handling device. The handling device includes: a conveyor line for placing and conveying boxes; a horizontal handling device, inserted into both ends of a plastic box and handling the plastic box along the direction of movement of the conveyor line; and two vertical handling devices located on both sides of the conveyor line and spaced apart perpendicular to the length of the plastic box. The two vertical handling devices are inserted into the opposite side walls of the plastic box and vertically handle the plastic box, enabling the plastic box to move between the conveyor line and the horizontal handling device. This application saves time during the handling process by simultaneously activating the horizontal handling device and the two vertical handling devices to handle the plastic box. Furthermore, the device engages with the side walls of the plastic box during transport for positioning, thereby improving the stability during transport and enhancing the conveying efficiency and operational stability of the palletizing elevator.
Owner:HANGZHOU ASIA PACIFIC INTELLIGENT EQUIP CO LTD

Intelligent air space method and system

This disclosure provides an intelligent air separation method and system. The intelligent air separation method includes: determining a target operating condition based on key operating parameters of the air separation system; wherein the key operating parameters include at least hydrogen concentration and load rate; determining feasible air separation operation modes within the target operating condition based on data support and operational stability; wherein data support is used to characterize the number of valid samples for the key operating parameters, and operational stability is used to characterize the standard deviation of hydrogen concentration; performing smoothing optimization on air separation control commands for feasible air separation operation modes across operating conditions; and performing air separation operation according to the smoothed and optimized air separation control commands. This disclosure reduces reliance on operator experience through automated operating condition identification and parameter optimization mechanisms, improving practicality and scalability. Furthermore, while ensuring safety and stability, it extends the maintenance cycle of air separation equipment and reduces maintenance costs through refined control optimization of energy consumption indicators.
Owner:STATE NUCLEAR POWER AUTOMATION SYST ENGCO +1

Tape measure with grab handle integrated control unit and tape exit area illumination

The invention discloses a flexible rule with a grab handle integrated control unit and a rule band exit area illumination function, and belongs to the field of measuring tools. The measuring tape comprises a shell (1), a tape band (2) and a grab handle (3) arranged on the shell (1) in a protruding mode. A first operating piece (4.1) used for triggering the braking device (4) and a second operating piece (5.1) used for starting and stopping the lighting module (5) are integrated on the surface of the grab handle (3); and a light-emitting unit (5.4) of the lighting module (5) is arranged in an outlet area of the tape. According to the invention, the core control function is highly integrated on the grab handle according with ergonomics, and the illumination of the exit area of the tape is realized, so that a user can complete a series of operations such as illumination, measurement and brake locking with a single hand without changing the holding posture in a dark environment, and the measurement efficiency, the operation stability and the operation safety are remarkably improved.
Owner:江长贵

Percutaneous operation intervention equipment based on four-axis inner double-point dynamic constraint

The utility model discloses percutaneous operation intervention equipment based on four-axis inner double-point dynamic constraint, which comprises a base, four groups of connecting arms and an adjusting table, the connecting arms are uniformly distributed between the base and the adjusting table, two ends of each connecting arm are respectively in spherical hinge connection with the base and the adjusting table, the base is provided with a positioning piece, and the positioning piece is arranged on the adjusting table. The center position of the adjusting table and the positioning piece are both connected with ball joints, and intervention tools are arranged on the two ball joints in a penetrating mode. The method has the advantages of avoiding the deviation of an intervention tool and improving the stability and accuracy of intervention operation.
Owner:HUNAN JISUO MEDICAL TECH CO LTD

A method and system for stable operation of compressors in the field weakening region based on angle compensation

This application discloses a method and system for stable operation of a compressor in the field of magnetic field weakening region based on angle compensation, relating to the field of compressor magnetic field weakening region control technology. The method includes: estimating the rotor angle using a phase-locked loop and generating an estimated angle; processing the operating parameters of the target compressor, the estimated rotor angle, and electromagnetic data generated by finite element analysis using a machine learning model to generate a predicted angle; and adjusting the compressor's operating parameters based on the predicted angle. The machine learning model compensates for the influence of multiple frequency components on the angle prediction by combining spatial harmonic components, high-frequency components of the back electromotive force signal, and noise signals. Furthermore, the electromagnetic data generated by finite element analysis further enhances the machine learning model's adaptability to complex electromagnetic environments. This invention can dynamically adjust the compressor's operating parameters under complex operating conditions, improving operational stability and energy efficiency.
Owner:CHONGQING UNIV

Automatic airtightness detector

The utility model discloses an automatic air tightness detector which comprises a detection support, a jig placed on the detection support, a detection workpiece placed on the jig, a pressing cylinder which is installed on the detection support and located above the jig, and a telescopic cylinder which is fixedly installed on the detection support and located on one side of the jig. The air inlet mechanism is mounted at the output end of the telescopic cylinder and is driven by the telescopic cylinder to be inserted into a detection workpiece for detection; the device has the remarkable advantages in the aspects of improving the detection precision, reducing manual intervention, improving the production efficiency, reducing the cost and the like, can effectively improve the quality control and operation stability in the production process, and is suitable for large-scale production environments with high standard requirements.
Owner:DONGGUAN HENGGE PHOTOELECTRIC TECH CO LTD

An instrument and method for lithotripsy of gastric stones

This invention relates to a gastric stone fragmentation instrument, comprising: a steel wire forming a loop to encircle the gastric stone; a pushing component driving the steel wire to extend and guide it to the location of the gastric stone; an elastic pressure component providing elastic contraction force after the steel wire encircles the gastric stone, causing the steel wire to tightly bind the gastric stone; and a reciprocating drive component driven by the steel wire to reciprocate while the steel wire is tightly bound to the gastric stone, thereby cutting the gastric stone. Furthermore, this invention also relates to a corresponding gastric stone fragmentation method. This invention improves fragmentation efficiency and enhances operational stability, avoiding the time wasted on repeated operations and adjustments, thus effectively shortening the overall operation time, reducing patient discomfort during surgery and the risk of complications that may arise from prolonged operation. Simultaneously, stable operation reduces accidental damage to the gastric mucosa that may be caused by repeated pulling, improving the safety of the surgery.
Owner:PEKING UNION MEDICAL COLLEGE HOSPITAL +2

Rigid supporting structure and method for movable anvil block for press fitting operation

The invention discloses a movable anvil block rigid supporting structure and method for press fitting operation, and relates to the technical field of press fitting equipment.The movable anvil block rigid supporting structure comprises a base, a movable sliding rail, an inverted L-shaped seat, a power conveying cylinder, a driving air cylinder, a limiting assembly and a supporting mechanism, and the base provides a sliding foundation for the supporting mechanism through the movable sliding rail; the V-shaped seat is detachably fixed to the base and carries the power conveying cylinder, the output end of the power conveying cylinder is connected with the detachable press-fitting head, the pressure sensor is arranged at the end of the press-fitting head, the core of the supporting mechanism is an inclined face matching structure of a low wedge-shaped supporting block, a high wedge-shaped supporting block and an anvil block supporting wedge block, and three-level constraint of driving spring pre-tightening locking and a guide frame is matched. Flexible adjustment and rigid supporting of the height of the anvil block are achieved, the pressure sensor is linked with an external control system, real-time pressure closed-loop control is formed, the device has high supporting rigidity and adjustment flexibility and can meet the press-fitting requirements of workpieces of different specifications, the press-fitting precision and operation stability are improved, and the workpiece damage rate is reduced.
Owner:CHANGCHUN ZONGYI AUTOMATION EQUIP CO LTD

Opening and closing operation device for escape door

The utility model provides an escape door opening and closing operation device which comprises a shell, a corner gear, a rocking handle and a connecting rod. The corner gear is arranged in the shell and comprises a first gear body and a second gear body, the central axes of the first gear body and the second gear body are perpendicular, the first gear body is connected with an input shaft penetrating through the wall of the shell, the second gear body is connected with an output shaft penetrating through the wall of the shell, and force input by the input shaft is changed by 90 degrees and then output from the output shaft. The rocking handle is connected with the first gear through the input shaft. One end of the connecting rod is connected with the second gear through an output shaft, and the other end is provided with a groove matched with a rotating shaft switch on the reducer assembly. According to the utility model, the burden of operators can be reduced, the operation stability is improved, and the operation efficiency is improved.
Owner:SHANGHAI RAIL TRANSIT MAINTENANCE SUPPORT

Full-tilting ducted fan aircraft

The utility model relates to the technical field of low-altitude traffic equipment, in particular to a full-tilting ducted fan aircraft, which is characterized in that a fuselage comprises a nose and a tail, wings are provided with tilting mechanisms to be in driving connection with wing ducted mechanisms, the nose is provided with the tilting mechanism to be in driving connection with a front ducted mechanism, and the tail is provided with the tilting mechanism to be in driving connection with a rear ducted mechanism; a height difference value exists between the front duct mechanism and the rear duct mechanism; the mounting distance between the wing duct mechanisms and the fuselage is greater than the mounting distance between the front duct mechanism and the fuselage and the mounting distance between the rear duct mechanism and the fuselage; according to the full-tilting ducted fan aircraft, pneumatic interference is reduced, the ducted operation stability is improved, ducted air ducts of the wing parts are prevented from being affected, and the stability and safety of the aircraft in the flying process are improved; the pitching angle of the duct is adjusted, the flight attitude of the duct is adjusted, power assistance in the take-off and landing process of the aircraft is provided, the tilting action efficiency of the aircraft is improved, more flight actions are achieved, and the actual application scene of the aircraft is improved.
Owner:FLYING SPACE (HUIZHOU) TECH CO LTD