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134results about How to "Realize switch control" patented technology

Communicated method, communication system and communication routing device based on SPI bus

ActiveCN101582823AReduced pin countImplement access operationsBus networksEmbedded systemEngineering
The invention discloses a communication method based on an SPI bus, comprising the following steps: providing selection signals of slave equipment through a data line of main equipment; determining the selected slave equipment according to the selection signals; carrying out accessing operation on the selected slave equipment through the main equipment; providing selection signals of a controlled electric unit through the data line of the main equipment; selecting the controlled electric unit according to the selection signals, and generating an open / close control command of the controlled electric unit; sending the control command to the controlled electric unit to control actions of the controlled electric unit. The invention also discloses a communication system based the on the SPI bus and a communication routing device used for the communication system. SPI main equipment provides the selection signals through the data line, and determines a selected operation object according to treatment of the signals, therefore, the accessing operation of the main equipment on the slave equipment can be realized only needing the SPI bus of 3 line or 4 line and without arranging more pins on a host end to descend any other control signals.
Owner:SHENZHEN MINDRAY BIO MEDICAL ELECTRONICS CO LTD +1

Internet of things home appliance management system and management method

The invention discloses an Internet of things home appliance management system and an Internet of things home appliance management method. The system comprises an Internet of things home appliance management platform, a plurality of home modular terminals and various home appliances in which decoding singlechip controllers are arranged. The management method comprises the following steps that: the Internet of things home appliance management platform starts the Internet of things home modular terminals by short messages or in an Internet communication mode, so that two-way communication of home appliance control information between the terminals and the management platform is realized; electric wires which pass through the interior of a home are connected with power line carrier communication interfaces included in the various Internet of things home appliances, so that communication with the decoding singlechip controllers arranged in the networked home appliances is realized; and the decoding singlechip controllers in the home appliances carry out instruction identity identification and matching and translate control instructions sent to the controllers into same address codes of each control key in a monitoring program corresponding to a keyboard controlled by the home appliances, so that direct connection with conventional control functions of each home appliance is realized. A simple, easy and low-cost method is provided for managing requirements of the Internet of things home appliances of different manufacturers.
Owner:安徽省皖江质量检测科技有限公司

Integrated controller for meter and electrical appliance

This invention relates to a combined control device for integrated instruments and electric appliances composed of a shell with a faulty display window and labels, an electronic control circuit, an intelligent expanding module circuit, a moving and static contactor component with a current sensor at the side of a static contact bridge, an iron core, a coil and a spring, which realizes multiple kinds of protections and fault display by the electronic control circuit and has the function of power saving, a photo electric isolation technology is applied for its high voltage drive and low voltage signal circuit and the I / O expanding interface and an intelligent expansion module are applied to enrich the function of the display and control of the instrument.
Owner:张 世兴

Intelligent housing system

The invention discloses an intelligent housing system. The intelligent housing system comprises a control module, a fingerprint lock, weighing sensors, a power supply box and an infrared ray human body inductive sensor, wherein the fingerprint lock, the weighing sensors, the power supply box and the infrared ray human body inductive sensor are each connected with the control module, the fingerprint lock is used for gating, the weighing sensors are installed on a bed to be used for detecting the human body, the power supply box is used for supplying power to the control module, and the infrared ray human body inductive sensor is connected with the fingerprint lock, the weighing sensors and the control module. The four weighing sensors are installed at the four corners of the bed respectively; the at least one infrared ray human body inductive sensor is installed indoors. The intelligent housing system is ingenious in concept, simple in principle and convenient to operate; intelligent control over the housing life is effectively achieved, the safety and the reliability are improved, and the high practical value and the wide application prospect are achieved.
Owner:徐勤俭

Intelligent piloting driving switch control method and system based on L2 level

The invention relates to an intelligent piloting driving switch control method and a system based on L2 level. The method comprises following steps that whether an adaptive cruise function (ACC) of anautomobile is in an on state or not can be detected in the driving state of the vehicle; when the adaptive cruise function ACC is in an on state according to a determining result, after an on instruction at least comprising a lane keeping assist function LKA is received, the vehicle is controlled to be switched to the intelligent piloting driving mode; and when the adaptive cruise function ACC isin the off state, only response to a received control instruction of a transverse auxiliary function is provided, wherein the transverse auxiliary function comprises at least one of the lane keepingauxiliary function LKA and a lane departure early warning function LDW. The control method of the intelligent piloting driving switch based on the L2 level is convenient for the free switching of theintelligent piloting driving mode, and practical application is facilitated.
Owner:JIANGLING MOTORS

Remote control switch

The invention relates to the technical field of switch control, particularly to a remote control switch which is applicable to a household switch box. The remote control switch comprises a casing, wherein the casing is matched with the switch box in shape and is arranged on the switch box; a storage battery, an overturning mechanism and a wireless control circuit are arranged in the casing; the storage battery provides a working power supply for the wireless control circuit and the overturning mechanism; the wireless control circuit receives wireless control signals and controls overturning of the overturning mechanism; the overturning mechanism overturns to touch a seesaw button or a thumb button on the switch box to swing the seesaw button or the thumb button from a first direction to a second direction opposite to the first direction, so as to realize on / off control over a lamp. The remote control switch performs overturning control over the position of the seesaw button or the thumb button on the conventional 86 switch box so as to realize remote on / off control; the remote control switch adopts the storage battery to realize passive remote on / off control, is safe and reliable, is convenient to mount and doesn't need to change the conventional circuit layout.
Owner:ZHEJIANG HOOEASY SMART TECH

Intelligent parking method and system

InactiveCN104966412AResolution timeSolve the problem of parking hassleIndication of parksing free spacesParking areaPayment
The invention discloses an intelligent parking method comprising the following steps of: 1, parking stall reservation: generating an earnest prepay list according to a selected target parking lot, deducting the earnest from the account of a user, transmitting parking stall information to a mobile terminal, and beginning to count time if the parking stall is successfully reserved; 2, parking: sending an entrance gate opening signal in order to control an entrance gate device to be opened and sending a parking stall lock opening signal in order to control a parking stall lock device to be opened; and 3, ending payment: sending a parking stall lock closing signal in order to control the parking stall lock device to be closed, ending time counting in order to complete payment, sending an exit gate opening signal, and sending an exit gate closing signal in order to control an exit gate device to be closed. The intelligent parking method helps a user fast find a vacant parking stall, greatly shortens parking time, and further shortens time when the user stops and swipes a card if entering or exiting the conventional parking lot.
Owner:佛山市顺德区龙江镇物联技术研究院

CT simulation system for teaching

The invention relates to the technical field of tools for medical teaching, in particular to a CT simulation system for teaching. The CT simulation system for teaching is suitable for teaching demonstration, free of radiation and harm, easy to operate and good in simulation effect and can simulate operation and output and display human body scanning information. The system comprises a simulation platform assembly, a simulation scanning frame assembly arranged outside the simulation platform assembly in a sleeving mode, a human body model arranged above the simulation platform assembly, a data storage and processing assembly used for receiving, processing and sending data, a control assembly and a display assembly, wherein the control assembly and the display assembly are connected with the data storage and processing assembly through cables. The CT simulation system for teaching has the advantages of being simple and reasonable in structure, low in manufacturing cost, suitable for purchase and use of schools, suitable for teaching demonstration, free of radiation and harm, easy to operate, good in simulation effect and capable of simulating operation and outputting and displaying the human body scanning information.
Owner:新乡医学院三全学院

Catch basin attachment

The object of the present invention is to provide a drainage basin attachment which can prevent breeding of mosquitoes in a puddle inside the drainage basin and also can shield scattering of an odor from the inside. The attachment includes a supporting member retained to the upper end of the basin body and an inner gate supported by the supporting member beneath the basin lid to close the top opening of the basin body. The inner gate forms an inner basin for temporarily storing the rainwater passing through the basin lid. The inner gate is normally closed and is opened by an action of force acting on the inner gate by the rainwater accumulated in the inner basin to an extent above a predetermined level, thereby dropping the rainwater from the inner basin into the basin body.
Owner:井本宗勋 +4

Remote music fountain control system and control method thereof

The invention discloses a remote music fountain control system and a control method thereof. The structure comprises a fountain control terminal. The fountain control terminal comprises a fountain water pump, a color lamp, a fountain control cabinet, a switching control module, an audio decoding module, a loudspeaker, a switchboard, a camera module, a cloud service platform, a webpage, mobile phone APP and the like. A user achieves switching control and music selection on a music fountain in the manners such as the webpage and the mobile phone APP, meanwhile, a real-time video monitoring picture is provided so as to cooperate with the user for conducting control, different control instructions of the user are sent to the cloud service platform through the network, the cloud service platform sends the processed control instructions to the switching control module or the audio decoding module through the network, then the control instructions are sent to the fountain control cabinet, and control over the color lamp and the jetting form of the fountain water pump is achieved. By means of the structure and the method, customizability, entertainment and interactivity of the music fountain are greatly improved.
Owner:NANJING UNIV OF POSTS & TELECOMM

LED dimming sensor

InactiveCN102083251ARealize intelligent centralized controlEffective dimmingElectronic switchingElectric light circuit arrangementIlluminanceMicrowave
The invention relates to an LED dimming sensor which comprises a microprocessor module as well as a microwave collection module, an infrared collection module, an illuminance collection module, a bus communication module used for receiving a remote control command and a dimming module used for LED brightness adjustment, which are connected with the microprocessor module, wherein an optoelectronic isolation circuit is arranged between the microprocessor module and the dimming module. The dimming sensor can be compatible with a traditional human body sensing lamp to realize the dimming and the switching control of LED light sources widely applied at present and has the advantages of more reliable and stable detection effect, effective avoidance to interferences and good energy saving effect; meanwhile, the sensor also can be used as a node of a D_BUS control system and coordinates to work with other modules in the system through the bus communication circuit so as to form a complicated control system, make up the deficiency of single scene control of the traditional human body sensing lamp and achieve the effect of outputting any scene.
Owner:深圳市大景智能控制有限公司

Method for optimizing distributed file system small-file writing cache

The invention discloses a method for optimizing distributed file system small-file writing cache, and relates to the field of computer storage. The method particularly includes the steps: S1 mounting a file system, and opening a cache function by a designating catalogue; S2 saving written data to a client to cache; S3 performing dirty data differentiated management by a cache management module according to inode; S4 regularly refreshing the dirty data to rear end storage pool by a cache refreshing module. According to the method, catalogue layout is performed, opening and closing control of cache functions is achieved and is inherited by the aid of a sub catalogue, operations for refreshing inode are triggered by a timer, synchronous refreshing is changed into asynchronous refreshing, batch refreshing of inode cab achieved, refreshed data contents are connected with inode intensity, small-file writing efficiency can be effectively improved, and writing operations of a large file and the small file can be achieved.
Owner:ZHENGZHOU YUNHAI INFORMATION TECH CO LTD

Disc drive apparatus and motor driver circuit

InactiveUS20050280379A1Reliably realize soft switching controlReduce noiseAC motor controlSynchronous motors startersDriver circuitSoft switching
A motor driver circuit according to the present invention comprises an edge signal generation means for generating an edge signal indicating the timing of phase-switching according to the values of a plurality voltages induced when driving the motor and a drive voltage control means for controlling the highest value of the drive voltage for driving the motor according to the edge signal. The drive voltage control means includes a first drive voltage control means for controlling the highest value of the drive voltage before the timing of phase-switching and a second drive voltage control means for controlling the highest value of the drive voltage after the timing of phase-switching. With this arrangement, it is possible to realize soft switching control while the motor is driven to rotate at high speed and reduce the noise due to the motor being driven to rotate.
Owner:SONY CORP

Intelligent parking method and system

The invention discloses an intelligent parking method comprising the following steps of: 1, parking stall reservation: generating an earnest prepay list according to a selected target parking lot, deducting the earnest from the account of a user, transmitting parking stall information to a mobile terminal, and beginning to count time if the parking stall is successfully reserved; 2, parking: sending an entrance gate opening signal in order to control an entrance gate device to be opened and sending a parking stall lock opening signal in order to control a parking stall lock device to be opened; and 3, ending payment: sending a parking stall lock closing signal in order to control the parking stall lock device to be closed, ending time counting in order to complete payment, sending an exit gate opening signal, and sending an exit gate closing signal in order to control an exit gate device to be closed. The intelligent parking method helps a user fast find a vacant parking stall, greatly shortens parking time, and further shortens time when the user stops and swipes a card if entering or exiting the conventional parking lot.
Owner:佛山市顺德区龙江镇物联技术研究院

Isolated type power circuit and circuit and method for transmitting control signals thereof

The invention relates to the field of electronics, and discloses an isolated type power circuit, and a circuit and method for transmitting control signals of the isolated type power circuit. The method for transmitting control signals of the isolated type power circuit comprises the following steps that first ground wire noise components are obtained according to ground wire noise signals, the first ground wire noise components and the ground wire noise signals are in a predetermined ratio, first peak signals containing second ground wire noise components are generated according to first control signals of the isolated type power circuit, the first control signals contain the ground wire noise signals, the second ground wire noise components and the ground wire noise signals are in a predetermined ratio, second control signals are obtained according to the first peak signals and the first ground wire noise components, and the isolated type power circuit is controlled to be switched on and switched off according to the second control signals. By means of the technical scheme, the control signals used for controlling the isolated type power circuit are effectively transmitted, and the control accuracy of the isolated type power circuit is improved.
Owner:SILERGY SEMICON TECH (HANGZHOU) CO LTD

Photosensitive decorative lamp capable of being turned on automatically

The invention relates to a photosensitive decorative lamp capable of being turned on automatically. The photosensitive decorative lamp capable of being turned on automatically comprises a cylindrical tree trunk. A power source is arranged in the tree trunk. Multiple insertion openings which are electrically connected with the power source are formed in the tree trunk. Tree branches are detachably inserted in the insertion openings, wires which are electrically connected with the insertion openings are arranged in the tree branches, and multiple sockets are arranged on the tree branches. The tree type combined decorative lamp further comprises a lamp body. The lamp body comprises a shell and a PCB provided with LED light sources. The PCB is electrically connected with the sockets through plugs. The shell comprises a lamp base part used for containing the PCB, a lamp tail part provided with the plugs, and a lamp arm arranged between the lamp base part and the lamp tail part, and connecting cables between the PCB and the plugs are arranged in the lamp arm in a penetrating mode. An automatic photosensitive control circuit is arranged on the PCB. The automatic photosensitive control circuit comprises one or more photoresistors. Control over on-off of the tree type combined decorative lamp is achieved by sensing the brightness of an external environment light source through the photoresistors.
Owner:DEQING HONGCHANG LIGHTING ELECTRIC APPLIANCE

Switch device and switch system with data collection function and application thereof

The invention discloses a switch device and a switch system with a circuit characteristic information collection function and an application method. The switch system comprises the switch device and an upper computer. The switch device comprises a collection module, a storage module, a communication module and a control module, wherein the collection module collects circuit characteristic information of a monitored electric power return circuit, the storage module stores the circuit characteristic information collected by the collection module, the communication module and the upper computer are in data transmission, and the control module achieves the control of switch on and off of the monitored electric power return circuit. Compared with the prior art, the switch device firstly mixes the four function modules of collection, storage, communication and switch control of the circuit characteristic information together, besides collection of data of electricity consumption, data such as voltage, an electric current, power and electricity utilization duration are further led in, and the switch device provides support for achievement of applications such as guest room resource monitoring, room electricity utilization metering, power consumption equipment condition monitoring, room electricity utilization checking and hotel electricity utilization checking; and then, the communication module can receive a long- distance switch control command and long-distance switch control is achieved.
Owner:CHENGDU GAMAR INTELLIGENT TECH

Intelligent socket capable of reducing standby energy consumption based on machine learning

The invention provides an intelligent socket capable of reducing standby energy consumption based on machine learning. The intelligent socket comprises a voltage sensor, a multi-channel current sensor, an ESP32 wireless communication module, an upper computer module and a solid-state relay, and relates to the technical field of electricity utilization. The voltage sensor and the multi-channel current sensor are used for detecting the voltage and the current of a power supply line in real time, and sending a detection signal to the ESP32 wireless communication module; the upper computer modulereceives the signal of the ESP32 wireless communication module, and then sends a quantized control signal to the ESP32 wireless communication module; and the solid-state relay receives the control signal of the ESP32 wireless communication module. Different power supply modes are selected according to different electric equipment, manual intervention is not needed, and potential safety hazards caused by mismatching of the power supply are avoided; and when the electric appliance enters a standby state, the electric appliance can be automatically switched off so as to reduce the consumption caused by the standby state, so that the purposes of energy conservation, emission reduction, home intelligentization and safety electricity utilization are finally achieved.
Owner:CENT SOUTH UNIV

Disc drive apparatus and motor driver circuit

A motor driver circuit according to the present invention comprises an edge signal generation means for generating an edge signal indicating the timing of phase-switching according to the values of a plurality voltages induced when driving the motor and a drive voltage control means for controlling the highest value of the drive voltage for driving the motor according to the edge signal. The drive voltage control means includes a first drive voltage control means for controlling the highest value of the drive voltage before the timing of phase-switching and a second drive voltage control means for controlling the highest value of the drive voltage after the timing of phase-switching. With this arrangement, it is possible to realize soft switching control while the motor is driven to rotate at high speed and reduce the noise due to the motor being driven to rotate.
Owner:SONY CORP

Home long-distance management device

A remote management device of home safety is prepared as connecting master controller with transmitting / receiving subunit to each other through USB interface and connecting master controller with safety inspection subunit and electric appliance interface to each other through I / O interface.
Owner:HARBIN ENG UNIV

OLED illumination panel

The invention provides a specific structure of an OLED illumination panel. In the technical scheme, on the basis of the prior art, a dispatching lead is disposed in a non-effective light emitting areato introduce an electrical signal in a binding area into an effective light emitting area. Preferably, a PWM wave generated by a single chip microcomputer in a printed circuit board is input into a driving chip, and modulation waveforms with different pulse widths can be output through the scheduling lead. Finally, the on-off control of the effective light emitting area of an OLED screen body isrealized by introducing the modulation waveform on the effective light emitting area of the OLED screen body, and in addition, the brightness uniformity of the screen body is adjusted by adjusting theduty ratio and the amplitude of the modulation waveform.
Owner:GUAN YEOLIGHT TECH CO LTD

Multichannel speed-control liquid nitrogen buffer fluid infusion device

The invention relates to the technical field of low temperatures, in particular to a multichannel speed-control liquid nitrogen buffer fluid infusion device. The device comprises a buffer tank, a fluid inlet pipe and a plurality of fluid outlet pipes, wherein the fluid inlet pipe and the fluid outlet pipes are respectively arranged at the bottoms of two sides of the buffer tank; a fluid inlet is formed in one end of the fluid inlet pipe and is used for importing liquid nitrogen to the buffer tank; the other end of the fluid inlet pipe is connected with a buffer tank inlet; a buffer baffle plate is arranged in the buffer tank and is used for reducing the flow speed of the high-speed liquid nitrogen; an exhaust and pressure reduction opening is formed in the top end of the buffer tank, the opening size of the exhaust and pressure reduction opening is adjustable; the exhaust and pressure reduction opening is used for controlling the flow speed of the liquid nitrogen; fluid outlets are formed in one ends of the fluid outlet pipes and are used for outputting liquid nitrogen; the other ends of the fluid outlet pipes are connected with a buffer tank outlet; and the fluid outlet pipes are used for realizing multichannel speed-control output of liquid nitrogen. According to the device, the technical problems that liquid nitrogen at extremely low temperatures lacks of mature buffer device and method, manual operations are required, the liquid nitrogen flows acutely when directly flowing out from large-scale Dewar tanks, the flow speed is uncontrollable and the liquid nitrogen cannot be continuously and stably output are solved.
Owner:HUAZHONG UNIV OF SCI & TECH

Composite nano metal particle-semiconductor medium film and its prepn process and completely optical kerr switch

The composite film has both great third-order optical nonlinear coefficient and very fast response. The composite film is deposited onto one side of transparent substrate, which is semiconductor medium film with homogeneous distributed 5-20 nm diameter noble metal particles. The preparation process of the composite film includes: depositing alkali metal or alkali earth metal film on one side of transparent substrate up to a white light transmittance of 30%, oxidizing the metal film into semiconductor medium film with restored white light transmittance; depositing noble metal film onto the semiconductor medium film; and annealing in vacuum for 120 hr and in atmosphere for over 100 hr. The present invention also provides completely optical Kerr switch with the composite film as Kerr medium.
Owner:PEKING UNIV

Short-distance tire conveying device

The invention provides a short-distance tire conveying device comprising a support frame, a conveying belt, a roller conveying rack and a supporting roller, wherein the right end of the conveying belt is provided with a weighing panel; a motor is arranged above the support frame; the roller conveying rack is arranged at the left side of the support frame; and a control substrate is arranged inside the motor and is welded with a microprocessor, a memorizer and a frequency converter. Compared with the prior art, the short-distance tire conveying device has the following beneficial effects that tires to be transported can be placed at the right end of the conveying belt by working staff, the weighing panel can be pressed by the tires, the weight information of the tires can be perceived by the weighing panel at the moment, the motor can be automatically started / stopped if the weight is higher than a critical value, and the motor can drive the conveying belt to rotate when rotating to further drive the tires to move leftwards until the roller conveying rack is conveyed to a proper place. The short-distance tire conveying device is artful in design, the market competitiveness is improved, and the aims of simple structure and reasonable design are achieved.
Owner:CHONGQING ANGTE COMMERCE & TRADE CO LTD

Fluid control valve

A fluid control valve comprises a valve body (1), a valve core (2), a cover plate (3) and a rocker arm (4). The valve core (2) is connected with the rocker arm (4) and positioned in the valve body (1), the cover plate (3) covers the valve core (2), and the rocker arm (4) is driven by external force to drive the valve core (2) to rotate so as to control flow passage connection and disconnection. Control of fluid connection and disconnection and two flow directions can be realized according to requirements by the fluid control valve. The fluid control valve has advantages of small size, low airflow loss, realization of noncontact seal, applicability to high-temperature fluid and the like, different flow rate requirements can be met conveniently through structural size parameter modificationaccording to different flow area demands, and accordingly design as required can be realized.
Owner:AECC SICHUAN GAS TURBINE RES INST

Electronic artificial hand based on sound control

The invention relates to an electronic artificial hand based on sound control, which includes an artificial hand speech recognition module, a signal amplification output chip and a signal relay control circuit. And the speech recognition module is composed of a speech recognition chip which can only recognize the user's own speech signal; and the speech recognition chip input end receives at least 7 kinds of speech instructions, one speech instruction is used for specialized training of urgency stop controls of any actions of artificial hand, other six instruction are outputted for the artificial hand electric relay control circuit, two to six instruction output signal are respectively used for controlling one to three freedom degrees of artificial hand, thereby finishing six actions of finger extension, finger bending, wrist internal rotation, wrist outward rotation, wrist extension and wrist bending. The invention can realize speech study function and recognition function, and realize outputs of two to more than six control instructions. The electric relay is used for controlling positive and negative rotation of electric motor, thereby realizing opening and closing functions of artificial hand controlled by two signals.
Owner:UNIV OF SHANGHAI FOR SCI & TECH

Keyless type door opening method based on wireless mobile terminal

The invention discloses a keyless type door opening method using a wireless mobile terminal. The method disclosed by the invention is different from a conventional door opening method in which a key is used. A conventional door lock is relatively weak and easy to steal. No lock cannot be unlocked and any lock can be unlocked with enough time as the unlocking method of the conventional door lock is fixed after when the conventional lock is output from a factory and the opening method cannot be changed by a user at will. The keyless type door opening method solves the problem of steal prevention of the conventional door lock and can be used for controlling the door to be opened and closed through using an advanced wireless control technology.
Owner:JIANGSU KEDA HUIFENG SCI & TECH

Connection arm for controlling activation/inhibition of chimeric antigen receptor T cell and application of connection arm

ActiveCN109134467AFast and flexible conversionAdjust instantlyOrganic active ingredientsOrganic chemistryChemical groupsBiological activation
The invention discloses a connection arm for controlling activation / inhibition of CAR-T. One end of the connection arm contains a target molecule capable of identifying a target cell, the other end ofthe connection arm contains a part, capable of being identified by the specificity CAR-T cell, with biological orthogonality, and the middle is coupled by a chemical group capable of being broken through biological orthogonality. According to the connection arm, the CAR-T cell can be quickly and flexibly switched from the activated state to the static state, and the connection arm has the systematicness and high efficiency on inhibition of the CAR-T cell. The connection arm has adjustment reversibility, an existing CAR-T cell is not injured or killed, the CAR-T cell can be flexibly switched from the activated state to the closed state to the activated state, and the integral effect of treatment is not influenced.
Owner:PEKING UNION MEDICAL COLLEGE HOSPITAL CHINESE ACAD OF MEDICAL SCI

Mechanical hydraulic control reversing valve

The invention provides a mechanical hydraulic control reversing valve, which comprises a first adjusting mechanism, a second adjusting mechanism, a pilot valve sleeve, an oil chamber switching mechanism, a main valve core and a main valve sleeve; the first adjusting mechanism and the second adjusting mechanism are respectively arranged at one end of the pilot valve sleeve and one end of the main valve sleeve; the other end of the pilot valve sleeve is connected with the other end of the main valve sleeve, and an installation cavity is formed in the pilot valve sleeve; the oil chamber switchingmechanism and the main valve element are sequentially arranged in the installation cavity; a first containing space, a first pilot cavity, a second containing space and a third containing space are formed in the installation cavity; the first containing space and the third containing space are connected with a main oil source; and the first pilot cavity and the second containing space are respectively connected with an auxiliary oil source. When the pilot valve is opened and closed, the acting area of one side of the pilot valve is changed, so that the pressure required for the opening and closing of the pilot valve is different, so that the working stability and reliability of the reversing valve are ensured, and the risk that the main valve core stops at a certain position in the middleis avoided.
Owner:SHANGHAI AEROSPACE CONTROL TECH INST

Gas auxiliary injection moulding apparatus and its control method

This invention provides an injection molding device assisted by gas and its control method for controlling the N2 pressure injected into plastic products including three parts of generation, pressure increasing and pressure control of N2, in which, the high pressure gas route in the control part is controlled by the low pressure gas route, an electronic control system is responsible for the adjustment of gas pressure in the low pressure gas route to realize accurate control of N2 pressure. This invention also provides a whole set of gas assisting molding device for controlling the generation, boosting and pressure of N2 accurately to control the injection pressure and pressure-keeping in many stages accurately and realize gas-assisting molding of plastic products.
Owner:QIFU SCI & TECH DEV CHANGCHUN CITY
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