Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

35results about How to "Easy to retrofit and upgrade" patented technology

Set of management and maintenance system for monitoring clusters of urban major transportation infrastructures

The invention discloses a set of management and maintenance system for monitoring clusters of urban major transportation infrastructures. The system comprises an online monitoring module, a data analyzing and processing module, an early warning evaluation module, a decision support module and a monitoring system controlling, managing and maintaining module. The modules of the system take a system cluster management platform as a center, take a server as a background data base and build communication and contact through an urban network in a man-machine interaction mode. The set of management and maintenance system combines a set of management and maintenance technologies and a full-service-life concept, provides a novel solving scheme for research of informationalization of public and safe urban infrastructures, combines a hardware layer and a software layer and provides a theoretical and experimental basis for analysis and research of typical transportation infrastructures.
Owner:ZHEJIANG IND POLYTECHNIC COLLEGE

Clamping and positioning device used for disassembling and assembling airplane pneumatic starter rotor and rotor disassembling and assembling method

The invention discloses a clamping and positioning device used for disassembling and assembling an airplane pneumatic starter rotor and a rotor disassembling and assembling method. The clamping and positioning device comprises a fixed supporting ring and at least two sets of pawl installing and fixing assemblies, wherein each pawl installing and fixing assembly is composed of a pawl installing and supporting screw, a gear fixing pawl and a rotating installation handle, the pawl installing and supporting screws are inserted into the fixed supporting ring and connected with the fixed supporting ring in a spiral threaded mode, each gear fixing pawl is arranged at the inner rod end, located in the fixed supporting ring, of the corresponding pawl installing and supporting screw, a gap is reserved between each gear fixing pawl and the inner rod end of the corresponding pawl installing and supporting screw after the gear fixing pawl is installed, a tooth socket which is matched with a gear of the rotor is arranged on the inner end face of each gear fixing pawl, when the rotor is installed or detached, and the tooth sockets of the gear fixing pawls are used for being meshed with the gear of the rotor so that the circumferential rotation of the gear of the rotor and the circumferential rotation of the rotor can be limited. Meanwhile, the invention discloses the rotor disassembling and assembling method of the clamping and positioning device.
Owner:GUANGZHOU AIRCRAFT MAINTENANCE ENG

Multi-screen and multi-media interaction system based on C/S architecture

ActiveCN108965217ARemote control playbackRemote control stopTransmissionInteraction systemsMulti machine
The present invention provides a multi-screen and multi-media interaction system based on C / S architecture. The system comprises a server and at least one client. The client comprises a user interaction interface and a message communication module, wherein the user interaction interface performs response to the user's operation, and the message communication module communicates with the server. The server is at least connected with a display screen, the server comprises the message communication module, a client management module, a screen management module, a multi-media management module anda remote operation control management module, wherein the message communication module is configured to communicate with the at least one client, the client management module manages the at least oneconnected client, the screen management module manages screen information, the multi-media management module manages the operation condition of the multi-media resources, and the remote operation control management module is configured to allow the at least one client to control the server. The system can perform collaboration when multiple people employ multiple machines to perform demonstration, and is high in flexibility.
Owner:INST OF SOFTWARE - CHINESE ACAD OF SCI

Electric vehicle chassis collision avoidance system

The invention relates to the field of vehicles, and provides an electric vehicle chassis collision avoidance system. The system is composed of a rear end chassis subsystem, a middle end chassis subsystem and a front end chassis subsystem. The rear end chassis subsystem comprises a rear collision avoidance beam, a rear energy absorption box, a truss frame, a buffer spring and a buffer shaft which are connected in sequence, wherein the buffer spring and the buffer shaft are arranged on the truss frame. A passenger frame is arranged on the top of a stereo case and connected with the rear collision avoidance beam through buffer beams, the two buffer beams are symmetrically arranged on the rear collision avoidance beam, and a buffer component for buffering is arranged between the rear collision avoidance beam and the truss frame. The front end chassis subsystem comprises a front energy absorption box and a front collision avoidance beam. The middle end chassis subsystem comprises a power battery pack, a stereo case and longitudinal beams arranged on the two sides of the stereo case. The effect of ensuring the safety of passengers in a vehicle when the vehicle is collided by a vehicle behind is improved with the rear chassis subsystem as a main energy absorption zone and a rear end passive collision avoidance structure as the basis of a force transmission path.
Owner:杭州衡源汽车科技有限公司

Reliable frame synchronizing technology in data communication

Using corrective grouping bit sequence output from demodulator, the invented technique is completed through decision module in frame synchronization. Synchronous code is composed of 7 bits barker code. Data at sending end are sent according to frame. Frame synchronization code group and data frame start-up word are inserted in front of each data frame, which is modulated and then sent to channel. Serial-parallel conversion is carried out at receiving end. Hardware sends each word received at the receiving end to decision module in frame synchronization for further processing. The decision module in frame synchronization is controlled by specific mathematic mode. The invention combines hardware with software, providing features of simple circuit, reliable synchronization, small program size and less resources needed. Good fault tolerant capability is kept under low S / N ratio. It is easy to modify and upgrade software. Thus, the invention raises quality and security greatly.
Owner:NO 30 INST OF CHINA ELECTRONIC TECH GRP CORP

Blood vessel identifying method and device

The invention relates to method for recognizing human id by using bioassay technique. Operation steps are as following: (1) irradiating blood vessel part to be tested by using near infrared auxiliary light to collect texture image of blood vessel; (2) pretreatment of texture image including: carrying separation of background by using threshold tracking method of standard deviation to determine foreground and back ground, and removing noise through bilevel, then thinning operation; (3) distinguish out singular points, converting issue of authenticating vessel texture into the issue of dot mode matching; (4) converting point coordinates of singular point to polar coordinates, which is stored into database as template filed; (5) characteristic matching: locking reference position first, then carrying out comparison; in comparison template stored in database and user's PID number constitutes original template of characteristic data.
Owner:SOUTHEAST UNIV

FPGA(Field Programmable Gate Array)-based transistor feature real-time measuring controller

The invention relates to an FPGA (Field Programmable Gate Array)-based transistor feature real-time measuring controller, comprising a microprocessor interface module, a measuring circuit interface module, a measuring process control module, a measuring parameter register set module, a measuring excitation generating module, a waveform cutting module and a measuring result caching module. The FPGA measuring controller is connected with a bus at a microprocessor end through the microprocessor interface module and is connected with a bus at an external measuring circuit end through the measuring circuit interface module; the measuring parameter register set module is used for storing the measuring parameter of the measuring controller and indicating the current measuring state; the measuring excitation generating module is used for generating digital excitation signals in accordance with the measuring process output by the measuring controller required by the measuring circuit; the waveform cutting module is used for measuring timing control; the measuring result caching module is used for preserving the measuring result of the measuring circuit; and the measuring process control module is used for coordinating operation of the modules and the measuring circuit to control ordered operation of the whole measuring process.
Owner:JIANGSU UNIV

Television with dancing teaching function and method for same to fulfill dancing teaching function

The invention provides a television with dancing teaching function and a method for the same to fulfill the dancing teaching function. The user can turn on the television with the dancing teaching function to learn to dance from the television at home in the usual time without signing up for dancing training in a specific time. The television with dancing teaching function is formed by additionally arranging a shooting device, a memorizer and a function control module on the prior television, wherein the function control module is arranged on the main chip of the television and connected with the shooting device and the memorizer and comprises a starting module, a dancing action processing module and a playing module. The method for the television to fulfill the dancing teaching function of the television comprises the following steps: shooting the dancing process of the user in time with the shooting device, judging the dancing action with the dancing action processing module and playing the demonstrative dancing song and the dancing action for the practice of the user, which are memorized in the memorizer, through the playing module so that the user can learn to dance from the television. The television with dancing teaching function is convenient to use, has good economic benefit and can fulfill the dancing teaching function with low cost.
Owner:KONKA GROUP

Electric automobile air conditioning system

The invention relates to the field of automobile air conditioning systems, and discloses an electric automobile air conditioning system. The electric automobile air conditioning system comprises a compressor (1), an outdoor heat exchanger (2), an indoor heat exchanger (3) and a throttle valve (4), and further comprises a first check valve (10), a second check valve (11) and an indoor auxiliary heat exchanger (6), wherein the second check valve (11) is connected with the indoor auxiliary heat exchanger (6) in series and used for heating, and forms a heating branch circuit, the first check valve (10) is used for refrigeration and forms a refrigeration branch circuit, and the heating branch circuit is connected with the refrigeration branch circuit in parallel. The electric automobile air conditioning system is based on an existing refrigeration system of a traditional automobile air conditioner, and achieves refrigeration and heating functions. Compared with a traditional automobile air conditioning system, the indoor auxiliary heat exchanger is added on the electric automobile air conditioning system, and therefore the electric automobile air conditioning system can provide heating effects which meet requirements of people. Furthermore, the electric automobile air conditioning system has the advantages of being low in cost, reliable in performance, easy to popularize and use and the like.
Owner:ZHEJIANG DUNAN ARTIFICIAL ENVIRONMENT

General vehicle satellite communication system and general vehicle satellite communication method

InactiveCN106330292AEasy to upgrade and modifyConvenient expansion and upgrade needsRadio transmissionRadio frequencyIntermediate frequency
The present invention discloses a general vehicle satellite communication system and a general vehicle satellite communication method. The system comprises a satellite transceiver subsystem, a service access subsystem, a service processing subsystem, an integrated control subsystem, a power supply subsystem, and a vehicle carrier subsystem. The satellite transceiver subsystem is used for pointing to a communication satellite in satellite communication so as to receive and transmit radio frequency information, and has a frequency conversion function that can realize conversion between intermediate frequency information and radio frequency information, wherein a frequency interface is fixed. The service processing subsystem is in butt joint with the satellite transceiver subsystem and is used for processing received and transmitted satellite signals. The service access subsystem is used for building an internal IP network, providing IP interfaces of all subsystems internally, providing various data interfaces externally and performing IP processing. The integrated control subsystem is used for configuring parameters of all subsystems, and displaying and monitoring the system state. The power supply subsystem is used for providing power for all subsystems in the vehicle. The vehicle carrier subsystem is used as a trunk of a car station.
Owner:CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST

Service component multiplexing method and device, computer device and storage medium

The embodiment of the invention discloses a service component multiplexing method and device, a computer device and a storage medium, and the method comprises the steps: analyzing a service componentloading request if the service component loading request is received, so as to obtain corresponding component feature information; calling an initial service component matched with the component feature information from a preset node packet manager according to the component feature information; calling an interface address information packet matched with the system characteristic information of the current service system from a preset database according to the acquired system characteristic information of the current service system, and configuring the called interface address information packet into corresponding component parameters of the initial service component to obtain a configured target service component; and analyzing and installing the target service component into the currentservice system. According to the invention, the reuse rate of the service component can be effectively improved, modification and upgrading are facilitated, the maintenance cost is reduced, and the user experience is improved.
Owner:SHENZHEN QIANHAI HUANRONG LIANYI INFORMATION TECH SERVICES CO LTD

Hydraulic coupler type limited-slip differential

InactiveCN101559719AImprove passabilityGood torque transmission efficiencyControl devicesGear wheelLimited-slip differential
A hydraulic coupling type limited-slip differential has two gear functions, i.e. a common gear differential gear and a hydraulic coupler differential gear. The hydraulic coupling type limited-slip differential is in the common gear differential gear in a usual state, can develop the high efficiency of the common gear differential gear to carry out transmission under a better road condition and can shift gears under a poorer road condition so that the hydraulic coupler type limited-slip differential is in a work state of the transmission of a hydraulic coupler differential, thereby a transmission shaft can distribute more torques to a half shaft with a larger drag torque according to the torsion conditions of two half shafts; and in addition, the invention enhances the passing ability of an automobile by driving the automobile to go forwards.
Owner:熊涔博

Wireless intelligent dual-control lock and operating method thereof

The invention discloses a wireless intelligent dual-control lock and an operating method thereof. The dual-control lock comprises a lock body part and a lock cover part, wherein a lock bolt is arranged in the lock body part, a wedge-shaped block is arranged at the right end of the lock bolt, and a notch is formed below the middle part of the lock bolt; a rotatable shifting block is positioned at the right end of the notch of the lock bolt, and a gap for limiting the rotation of the shifting block is formed on a main body of the shifting block; a microswitch for transmitting the opening state of the dual-control lock to an external computer control unit wirelessly is arranged on the right side of the wedge-shaped block; a direct-acting electromagnet is arranged on the right side of the shifting block and is fixed by a pressing plate, and a movable electromagnet sliding rod and an induction coil are arranged in the direct-acting electromagnet; and a lock block is arranged above the electromagnet sliding rod, and the upper end of the lock block is connected with a lock block pressure spring. The lock cover part comprises a lock cover, an adapter assembly and a lock core; and the adapter assembly comprises a contact pin, a joint, a printed circuit board (PCB) and a film for isolating the joint from the PCB board.
Owner:GUANGZHOU UNICOMP TECH

Clearance measuring tool for screw assembly of adjustable air bleed valve of aircraft

ActiveCN108759628ASimple structureMeasuring function is stableMechanical clearance measurementsEngineeringAirplane
The invention discloses a clearance measuring tool for a screw assembly of an adjustable air bleed valve of an aircraft, which comprises a base (3) and a torsion arm, wherein the left and the right ofthe base (3 ) protrude, the middle parts of the left and right protrusions are provided with coaxial threaded holes, and the coaxial threaded holes are internally provided with left and right lockingbolts (6) respectively; the middle of the base (3) is provided with a front-back transverse hole and a vertical hole which are mutually intersected, the front-back transverse hole is internally provided with a bearing which supports a hexagonal torsion shaft (9); the lower part of the torsion arm is provided with a front-back hexagonal hole so as to be matched with the hexagonal torsion shaft (9), the top is provided with four forks which are symmetrical front and back and left and right and face upwards; the hexagonal torsion shaft (9) penetrates through the front-back hexagonal hole which is inserted into the bottom of the torsion arm from the vertical hole in the base (3) in a mode of preserving a clearance. The tool can accomplish the clearance measurement for various types and sizesof screw assemblies conveniently, realizes effectively centering and clamping, ensures accurate and reliable clearance measurement for the screw assembly and is simple and easy to operate; and the device is solid and durable, can be freely assembled and disassembled, and is simple and convenient to upgraded, modified, repaired and maintained.
Owner:GUANGZHOU AIRCRAFT MAINTENANCE ENG

Power supply system of heavy-duty car SCR system

The invention discloses a power supply system of a heavy-duty car SCR system. The power supply system comprises a DCU, a urea pump, a urea nozzle, a storage battery, a battery main switch and other electric equipment and further comprises a relay and a controller controlling the relay. A timer is arranged inside the controller. The DCU, the urea pump and the urea nozzle are connected in parallel, and then the power supply pin ends of the DCU, the urea pump and the urea nozzle are connected to a positive electrode of the storage battery through the relay. The power supply pin end of the other electric equipment is connected to the positive electrode of the storage battery through the battery main switch. The relay and the battery main switch are connected in parallel. The DCU, the urea pump, the urea nozzle and the other electric equipment are connected in parallel, and then the ground pin ends of the DCU, the urea pump, the urea nozzle and the other electric equipment are jointly connected to a negative electrode of the storage battery. After the battery main switch is turned off, it can also be ensured that the DCU, the urea pump and the urea nozzle are delayed to be powered on for a certain period of time, and urea backflow is controlled to be completed. The power supply system is simple in structure, high in reliability and suitable for large-scale application and popularization in the field of heavy-duty cars, circuits of the finished car are changed slightly, and the heavy-duty car can be conveniently refitted and upgraded.
Owner:SINO TRUK JINAN POWER

Integral refrigerating unit capable of being used in vending machine

An integral refrigerating unit capable of being used in a vending machine comprises a baseplate, as well as a compressor, a condenser and an evaporator assembly mounted on the baseplate, wherein the evaporator assembly comprises a heat-insulating box with an opening in the top and an evaporator located in the heat-insulating box; a heat-insulating partition plate is arranged above the evaporator;the evaporator and the heat-insulating partition plate divide the heat-insulating box into an air outlet cavity and an air return cavity; an air outlet opening and an air return opening are formed above the air outlet cavity and the air return cavity respectively; evaporator fans are mounted on one side surface of the evaporator; and the compressor, the condenser and the evaporator are connected in sequence through pipelines. According to the integral refrigerating unit, the evaporator assembly, the compressor and the condenser are fixed on the same baseplate to reduce the overall height of the refrigerating unit, thereby enlarging the space, used for sale, of the vending machine.
Owner:四川尖瑞科技有限公司

Negative ion generator connecting structure convenient to disassemble and replace for air purification

The invention discloses a negative ion generator connecting structure convenient to disassemble and replace for air purification, and relates to the technical field of air purifiers. The structure comprises a purifier body, fixing plates, a positioning plate and a negative ion generator body, wherein the fixing plates are arranged in the purifier body, the positioning plate is arranged in the purifier body, the negative ion generator body is arranged in the positioning plate, and a touch panel is arranged at the upper end of the front face of the purifier body; and the negative ion generator body is installed through a groove and an installation groove and clamped through a net plate, when the negative ion generator body needs to be disassembled and replaced, the positioning for the negative ion generator body can be relieved by pressing a connecting ring to release the net plate and pulling out the positioning plate inside, the overall operation mode is simple, bolt connection in a traditional connecting structure is replaced with clamping connection among different structures, and the installation position of the negative ion generator body is independently arranged on the outerside of the purifier body, so that the purpose of convenient disassembly and replacement is achieved.
Owner:SHENZHEN WANJUYUAN TECH

Bomb supporting device used for automatic bomb body filling and using method of bomb supporting device

The invention discloses a bomb supporting device used for automatic bomb body filling and a using method of the bomb supporting device. The bomb supporting device comprises a bomb supporting device body which is basically arranged parallel to a bomb body launching barrel and a power execution device which operates the bomb supporting device to release a bomb body, when in use, the bomb body is placed in thebomb supporting device body and is limited, a connecting rod mechanism of the power execution device drives the bomb supporting device body to move downwards, a bomb blocking plate of the bomb supporting device body is blocked by a releaser of the power execution device to move in the direction away from a bottom plate of the bomb supporting device body, and the bomb body slides out of the bomb supporting device body under the action of gravity and slides into the bomb body launching barrel to complete filling of the bomb body. According to the bomb supporting device, a common full-wrapping limiting mode in the foreign automatic pre-filling technology is not adopted, a point limiting mode is adopted in upper limiting, the manufacturing cost is saved, the pure mechanical structuredesign is safe and high in reliability, and modification and upgrading are easy to achieve so as to adapt to different bomb types.
Owner:NANJING UNIV OF SCI & TECH

Hydraulic coupler type coupling limited slip differential

A hydraulic coupler type coupling limited slip differential comprises two shift functions: a common gear differential shift and a hydraulic coupler coupling differential shift. In the normal condition, the differential is at the common gear differential shift; in the better road conditions, the differential can bring high efficiency of the common gear differential to drive; in the poor road conditions, the shift can be changed, so that the differential is at the working state of the hydraulic coupler coupling differential drive, therefore, the driving shaft can automatically transmit more torques to a half-shaft with low rotation speed according to the rotation speed of two half-shafts at the transmission characteristic of the hydraulic coupler condition so as to drive the car and improve the trafficability characteristic.
Owner:熊涔博

Sample preparation device and method for carbon-oxygen isotope micro-zone analysis of carbonate

The invention discloses a sample preparation device and method for carbon-oxygen isotope micro-zone analysis of carbonate. The device comprises a phosphoric acid capillary microsyringe and a carbonatesample cell; a helium inlet and a carbon dioxide outlet are respectively formed in the side surface of an enclosed cavity of the carbonate sample cell and a micro-injection needle opening is formed in a top cover of the carbonate sample cell; an outlet of the phosphoric acid capillary microsyringe injects phosphoric acid onto a sample in the carbonate sample cell through a micro-injection needle;the carbon dioxide outlet is connected with a carbon-oxygen isotope tester; a sample frame is mounted on an electric-control three-axis sample table; and a temperature control plate is arranged at the bottom of the sample frame. According to the device, the micro-injection needle is adopted to inject phosphoric acid micro-droplets to have a reaction with the carbonate sample, and gas generated bythe reaction is collected to carry out carbon-oxygen isotope, so that both relatively high space resolution and data accuracy are considered and micro-zone in-situ analysis is realized; and the device is low in cost and simple in structure.
Owner:CHENGDU UNIVERSITY OF TECHNOLOGY

A tool for measuring the clearance of the lead screw assembly of an aircraft adjustable deflation valve

The invention discloses a clearance measuring tool for a screw assembly of an aircraft adjustable deflation valve, comprising: a base (3) with left and right protrusions, coaxial threaded holes are opened in the middle of the left and right protrusions, and left and right locking bolts are arranged in the middle. (6); The middle of the base (3) is provided with front and rear horizontal holes and vertical holes, and the two intersect, and the front and rear horizontal holes are equipped with bearings to support a hexagonal torsion shaft (9); a torsion arm, the lower part is provided with front and rear hexagonal holes In cooperation with the hexagonal torsion shaft (9), the top is provided with four forks that are symmetrical in front and rear, left and right and upward; Front and rear hex holes on the bottom of the arm. This tooling can easily complete the clearance measurement of various types and sizes of screw assemblies, achieve effective centering and clamping, ensure accurate and reliable clearance measurement accuracy of screw assemblies, simple operation, and easy to use; the quality of the device itself is solid, durable, and can be freely Easy to disassemble, upgrade and refit, repair and maintain.
Owner:GUANGZHOU AIRCRAFT MAINTENANCE ENG

Diesel fork lift truck recycling method and installation package

PendingCN113942958AEasy to retrofit and upgradeApplicable performance requirementsLifting devicesElectric carsElectric vehicle
The invention discloses a diesel fork lift truck recycling method, which comprises the following steps of determining needed installation package configuration information; configuring a required installation package according to the configuration information of the installation package; assembling the installation package into a containing space of a diesel fork lift truck, and connecting a hydraulic pipeline and a whole truck wire harness; and debugging the whole vehicle and conducting functional testing, and completing assembling. The invention further provides the installation package for recycling of the diesel fork lift truck, wherein the installation package has the overall dimension matched with the containing space, a plurality of integrated components are arranged in the installation package, and all the integrated components are arranged in the installation package in a preset arrangement mode. According to the method suitable for recycling of the diesel fork lift truck and the installation package for recycling of the diesel fork lift truck provided by the invention, the diesel fork lift truck can be quickly and conveniently modified and upgraded into an electric vehicle type to be continuously used when needed, the configuration of the installation package can be changed according to actual use requirements, and the performance requirements of different application scenes are met.
Owner:ANHUI HELI CO LTD

Safety single-punch controller for punch

The invention relates to a safety single-punch controller for a punch. The safety single-punch controller comprises a buffer head and a shell, as well as a hook plate, a middle plate, a sliding plate, a pressing plate, a swing rod, a lever, a locking block and a locking wheel which are arranged in the shell, wherein the swing rod is arranged on the shell through a pivot; the buffer head is arranged at the outer end of the swing rod; the inner end of the swing rod is linked with the hook plate; a moving plate hole is arranged in the middle of the sliding plate and internally provided with a moving plate with height being less than that of the moving plate hole; the middle of the moving plate is also provided with a sliding block hole that is internally provided with a sliding block; the inner end of the sliding block passes through the middle plate and the hook plate in sequence; a spring is horizontally arranged inside the body of the sliding block; the inner end of the spring is horizontally propped up inside the body of the sliding block and the outer end thereof is horizontally propped on an outer cover of the sliding block; the outer cover of the sliding block is fixedly connected with the moving plate; and the surface of the sliding block, contacted with a slopping surface of the middle plate, is also an inclined surface. The safety single-punch controller has compact structure, matching reliability of all components, small volume and prevention of faulty operation resulting to injure in work.
Owner:张广宇

Stop-flow two-dimensional liquid chromatography with two multi-port valves as switching devices and its application

ActiveCN105891369BSolve problems with high pressure changesEasy to separateComponent separationTwo-dimensional chromatographyEngineering
The invention discloses a flow-stopping type two-dimensional liquid chromatogram adopting two multi-way valves as switching devices and an application thereof. The two-dimensional liquid chromatogram comprises a first-dimensional separating part, a flow-stopping switching device and a second-dimensional separating and detecting part, wherein the flow-stopping switching device consists of two multi-way valves; the multi-way valve for stopping flow is connected with the first-dimensional separating part, and the multi-way valve for switching is connected with the second-dimensional separating and detecting part. The flow-stopping type two-dimensional liquid chromatogram disclosed by the invention has the advantages that an outflow component of the first-dimensional liquid chromatogram is connected to two adjacent input ends of the multi-way valve, and when the sampling state is ended, the valves are rotated simultaneously at the moment when the flowing speed of a first-dimensional liquid chromatographic pump is stopped, and the pressure of a first-dimensional liquid chromatographic column can be maintained, so that the problem of large pressure change when the flow is stopped is solved, and the capabilities of separation and analysis are greatly improved.
Owner:SOUTH CHINA UNIV OF TECH

Clamping and positioning device used for disassembling and assembling airplane pneumatic starter rotor and rotor disassembling and assembling method

The invention discloses a clamping and positioning device used for disassembling and assembling an airplane pneumatic starter rotor and a rotor disassembling and assembling method. The clamping and positioning device comprises a fixed supporting ring and at least two sets of pawl installing and fixing assemblies, wherein each pawl installing and fixing assembly is composed of a pawl installing and supporting screw, a gear fixing pawl and a rotating installation handle, the pawl installing and supporting screws are inserted into the fixed supporting ring and connected with the fixed supporting ring in a spiral threaded mode, each gear fixing pawl is arranged at the inner rod end, located in the fixed supporting ring, of the corresponding pawl installing and supporting screw, a gap is reserved between each gear fixing pawl and the inner rod end of the corresponding pawl installing and supporting screw after the gear fixing pawl is installed, a tooth socket which is matched with a gear of the rotor is arranged on the inner end face of each gear fixing pawl, when the rotor is installed or detached, and the tooth sockets of the gear fixing pawls are used for being meshed with the gear of the rotor so that the circumferential rotation of the gear of the rotor and the circumferential rotation of the rotor can be limited. Meanwhile, the invention discloses the rotor disassembling and assembling method of the clamping and positioning device.
Owner:GUANGZHOU AIRCRAFT MAINTENANCE ENG

A bomb support device for automatic loading of bombs and its application method

The invention discloses a bomb support device for automatic loading of projectiles and a method for using the same. The bomb support device includes a bomb support arranged substantially parallel to the projectile launching cylinder and a power actuator for operating the bomb support to release the projectile. When in use, the bullet body is put into the bullet holder and is limited; the link mechanism of the power actuator drives the bullet holder to move downward, and the bullet retainer of the bullet holder is blocked by the releaser of the power actuator to move away from the bullet holder. When the bomb baffle moves to no longer in contact with the projectile, the projectile falls out of the bomb holder under the action of gravity and slides into the projectile launching tube to complete the loading of the projectile. The spring support device of the present invention does not adopt the full package limit commonly used in foreign automatic front loading technology, but adopts the point limit method in the upper limit, which saves the manufacturing cost, and the pure mechanical structure design has high safety and reliability, and is easier to load. Modified and upgraded to adapt to different types of ammunition.
Owner:NANJING UNIV OF SCI & TECH

Wireless intelligent dual-control lock and operating method thereof

The invention discloses a wireless intelligent dual-control lock and an operating method thereof. The dual-control lock comprises a lock body part and a lock cover part, wherein a lock bolt is arranged in the lock body part, a wedge-shaped block is arranged at the right end of the lock bolt, and a notch is formed below the middle part of the lock bolt; a rotatable shifting block is positioned at the right end of the notch of the lock bolt, and a gap for limiting the rotation of the shifting block is formed on a main body of the shifting block; a microswitch for transmitting the opening state of the dual-control lock to an external computer control unit wirelessly is arranged on the right side of the wedge-shaped block; a direct-acting electromagnet is arranged on the right side of the shifting block and is fixed by a pressing plate, and a movable electromagnet sliding rod and an induction coil are arranged in the direct-acting electromagnet; and a lock block is arranged above the electromagnet sliding rod, and the upper end of the lock block is connected with a lock block pressure spring. The lock cover part comprises a lock cover, an adapter assembly and a lock core; and the adapter assembly comprises a contact pin, a joint, a printed circuit board (PCB) and a film for isolating the joint from the PCB board.
Owner:GUANGZHOU UNICOMP TECH

Shaft pulling device used for pulling airplane anti-icing valve guide shaft and shaft pulling method

The invention discloses a shaft pulling device used for pulling an airplane anti-icing valve guide shaft. The shaft pulling device comprises a taper pipe barrel (3), a lock nozzle (1), a lock nozzle square-head nut (6), a positioning base (2), two long wrench handles (5), two short wrench handles (5), two L-shaped fastening and positioning blocks (7) and a rotating nut (4). The two L-shaped fastening and positioning blocks (7) are oppositely and symmetrically fixed to the two ends of a waist plate of the positioning base (2) through bases via connecting pieces; the lock nozzle (1) penetrates in the taper pipe barrel (3); the lock nozzle square-head nut (6) is screwed on an outer thread at one end of the lock nozzle (1); and the above parts penetrate a middle large through hole of the waist plate of the positioning base (2) together after being assembled. The positioning base (2) is fixed to a valve shell provided with the airplane anti-icing valve guide shaft.
Owner:GUANGZHOU AIRCRAFT MAINTENANCE ENG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products