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80results about How to "Control start" patented technology

Slow stretching experimental device with high-temperature high-pressure circulating water and using method

The invention belongs to the field of experimental researches on materials, and particularly discloses a slow stretching experimental device with high-temperature high-pressure circulating water and a using method. The device mainly comprises four parts, namely a high-temperature high-pressure circulating water system, a slow stretching loading device, a hydrochemical control system and a loading monitoring system, wherein the high-temperature high-pressure circulating water system can be used for providing a dynamic high-temperature high-pressure water environment; the slow stretching loading device is used for stretching a test sample in a high-pressure kettle at different strain rates; the hydrochemical control system is used for controlling hydrochemical parameters of the high-temperature high-pressure circulating water system; the loading monitoring system is used for regulating and recording a stretch curve of the test sample in the kettle; the test sample in the high-pressure kettle is fixedly arranged on a fixture; the fixture is connected to the upper end of a loading shaft, and an adapter coupling device is connected to the lower end of the loading shaft; a stretching tester is connected to the lower end of the adapter coupling device, and is used for realizing the slow strain rate loading of the test sample. According to the device and the method, the stress corrosion of a material can be tested in a high-temperature high-pressure circulating water environment, and the problems of complex structure, troublesome maintenance and the like in the prior art are solved.
Owner:INST OF METAL RESEARCH - CHINESE ACAD OF SCI

Continuously working and controllable electrostatic jetting device

The invention relates to an electrostatic jetting device, in particular to a continuously working and controllable electrostatic jetting device. The invention provides a continuously working and controllable electrostatic jetting device capable of controlling the starting and stopping of electrostatic jetting and stably jetting single jet stream for a long time. The device is provided with a hollow jetting head, lower and upper channels of the jetting head, a conductor probe, an insulated sealing sleeve, an electric spiral adjuster, a liquid supply device, a switch valve, a negative pressure chamber, a high voltage relay, an electrostatic high voltage power supply, an electrically conductive relay, a controller and a collecting plate, wherein the lower end of the hollow jetting head is provided with a nozzle while the upper end of the hollow jetting head is provided with a seal cover; the conductor probe is arranged inside the hollow jetting head and is fixed inside the insulated sealing sleeve, the liquid supply device is communicated with the hollow jetting head through the upper channel of the jetting head, the lower channel of the jetting head is communicated with the negative pressure chamber, the conductor probe is connected with the common end of the high voltage relay, the normally open end of the high voltage relay is connected with an anode of the electrostatic high voltage power supply, a casing of the hollow jetting head is connected with the common end of the electrically conductive relay, and the collecting plate is arranged right below the lower end of the conductor probe.
Owner:XIAMEN UNIV

Intelligent earphone capable of controlling intelligent household environment

The invention discloses an intelligent earphone capable of controlling intelligent household environment. The intelligent earphone comprises an input module, a communication module, a positioning module, and a processor. The intelligent earphone is characterized in that input instructions acquired by an input module can be received, and the processor or a cloud server is used to calculate the time of the user arriving at the intelligent household environment according to the distance acquired by the positioning module; the starting time can be acquired by comparing the intelligent household environment working time and the time of the user arriving at the intelligent household environment, and the communication module or the cloud server is used to transmit the execution instructions to the intelligent household environment, when the starting time is up. The intelligent earphone provided by the invention is advantageous in that the starting time of the intelligent household environment can be determined according to the distance between the user and the intelligent household environment, and therefore the operation convenience and intelligence of the intelligent household can be improved, and the intelligent earphone is closer to the life of the user.
Owner:BEIJING QIHOO TECH CO LTD +1

Skating safety air bag protection device, method and protection clothes

The invention relates to a skating safety air bag protection device, a skating safety air bag protection method and skating safety air bag protection clothes. The device comprises an acceleration induction module for detecting the instantaneous acceleration of a human body, a relative distance and speed induction module for detecting the relative instantaneous distance and speed of the human body, a processor module for sending an inflation command to an inflation module when determining that the human body is hit according to the instantaneous acceleration or the relative instantaneous distance and speed, and the inflation module for opening an inflation valve according to the inflation command. An inflation device is quickly controlled to be started in real time according to judgment conditions such as the instantaneous acceleration, the relative instantaneous distance and speed and the inflation time of the inflation module, so that the human body can be timely prevented from being hurt by dangerous objects such as a wall, a person and the like during skating; meanwhile, a sound induction module detects scream made by the human body instinctively when the human body is about to be hit or fall down, or external pressure borne by the body when the human body falls down or is hit is combined to serve as the judgment condition, so that effective safety guarantee is provided for the body of a skater.
Owner:HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL

On-off control circuit for 10kV motor

ActiveCN105334761APerfect start preparationIncrease operational pertinenceProgramme control in sequence/logic controllersMicrocomputerAutomatic control
The invention discloses an on-off control circuit for a 10kV motor, and belongs to the field of high-voltage motor control. The on-off control circuit comprises automatic air switches ZK, a microcomputer integrated protection device 1n, breakers QF, a control switch KK, a selection switch XK, intermediate relays ZJT and ZJH, indicator lamps, a selector switch QK and emergency stop buttons JA. The positive end of one automatic air switch ZK is connected with the terminal X1 of the microcomputer integrated protection device 1n, and the terminal X6 of the microcomputer integrated protection device 1n is connected with the negative end of the corresponding automatic air switch ZK to form a power source loop of the microcomputer integrated protection device 1n; the negative end of one automatic air switch ZK is connected with one end of the switching-on allowing signal lamp beside the motor, the other end of the automatic air switch ZK is connected with one end of a normally closed auxiliary contact of the corresponding breaker QF, and the other end of the normally closed auxiliary contact of the corresponding breaker QF is connected with a control contact of the selection switch XK to form a loop allowing the corresponding indication lamp to be turned on. Manual control and automatic control can be switched through the on-off control circuit.
Owner:ANHUI MASTEEL ENG & TECH GRP

Wind wheel locking device

The invention provides a wind wheel locking device. The wind wheel locking device comprises a first lock body, a second lock body, a hinge pin and a driving structure, wherein the first lock body is suitable for being mounted on a wind wheel, synchronously rotates with the wind wheel and is provided with a locking hole; the second lock body is suitable for being fixedly arranged on a bracket and is provided with a lock hole, and the lock hole is provided with a first opening facing the wind wheel; the hinge pin is mounted in the lock hole, can axially move along the lock hole under the action of external force, and is provided with a first position and a second position; the first position is inserted into the locking hole through the first opening so as to lock the wind wheel, and the second position is pulled out of the locking hole and withdrawn into the lock hole through the first opening so as to unlock the wind wheel; and the driving structure is used for driving the hinge pin to switch between the first position and the second position. The wind wheel locking device further comprises an oil delivery structure used for supplying lubricating oil to a clearance between the hinge pin and the inner wall of the lock hole. When lubricating oil needs to be supplied to the wind wheel locking device, oil can be supplied through only an oil supply structure without pulling out the hinge pin, so that operation is convenient.
Owner:HUAYI WIND ENERGY CO LTD

Aerobic composting waste heat power generation system and working method thereof

The invention relates to an aerobic composting waste heat power generation system and a working method thereof, and belongs to the field of organic solid waste resource utilization. The system comprises a waste collection device, a main composting reaction chamber, a waste heat power generation device and a tail gas collection device, wherein a heat conduction cover is arranged at the top of the main composting reaction chamber, the upper space of the main composting reaction chamber is a waste reactor body, the lower space of the main composting reaction chamber is a leachate collection device, a filter screen is arranged between the upper space and the lower space, and the main composting reaction chamber is further connected with an aeration device; the bottom of the heat conduction cover is connected with the reactor body through a heat conduction rod; a waste heat power generation device is installed on the upper surface of the heat conduction cover and is formed by connecting a plurality of semiconductor thermoelectric power generation pieces in series, wherein the electric energy generated by the semiconductor thermoelectric power generation pieces is transmitted to an electricity storage and supply device. According to the invention, heat can be recovered from organic wastes while the organic wastes are treated, and the problem of secondary pollution caused by excessivewaste heat of traditional compost is solved.
Owner:SHANDONG UNIV

Permanent-magnet novel electromagnetic relay

The invention discloses a permanent-magnet novel electromagnetic relay, and belongs to the technical field of electromagnetic relays. The permanent-magnet novel electromagnetic relay comprises a housing, an electromagnetic-permanent magnet system, a driving mechanism and a contact contacting system, wherein the electromagnetic-permanent magnet system, the driving mechanism and the contact contacting system are arranged in the housing, one end of the driving mechanism moves in the electromagnetic-permanent magnet system, and the other end is connected with the contact contacting system. According to the invention, the electromagnetic-permanent magnet system and the contact contacting system are combined, an electromagnetic force provided by the electromagnetic-permanent magnet system is converted into a pushing force of the contact contacting system, then the contact is stabilized at the limit position according to the magnetic force of the permanent magnet, and the working stability ofthe electromagnetic relay is improved. The electromagnetic relay of the invention can effectively provide a great pushing force, has the characteristics of simple structure, small volume, good assembly and good manufacturability, and has broad market prospects in the application and popularization of electrical circuits.
Owner:GUILIN UNIV OF ELECTRONIC TECH

Water spraying cleaning device for power transformer

ActiveCN111992534AUniform and efficient cooling effectRapid and efficient cleaning and coolingDirt cleaningCleaning using toolsWater storage tankTransformer
The invention relates to a water spraying cleaning device for a power transformer. The water spraying cleaning device is applied to the technical field of power equipment, and solves the technical problem that a traditional cleaning device can only simply wash a radiator but cannot control the temperature of the radiator in time. The water spraying cleaning device comprises a mounting chamber foraccommodating the transformer, a temperature measuring assembly for monitoring the surface temperature of the radiator, a cleaning assembly for cleaning the surface of the radiator and a water collecting assembly; the cleaning assembly comprises a water storage tank, a water outlet pipe communicating with the water storage tank and a plurality of spraying heads, and pressurizing devices are arranged on the water outlet pipe; the temperature measuring assembly is connected with the pressurizing devices in a coupled mode, and the pressurizing devices are connected with time relays in a coupled mode; and the water collecting assembly comprises water collecting tanks arranged outside the mounting chamber, communicating pipelines and water conveying pumps, the two ends of the communicating pipelines communicate with the water collecting tanks and the water storage tank correspondingly, filtering assemblies are arranged on the communicating pipelines, and the water conveying pumps are arranged on the communicating pipelines. The water spraying cleaning device for the power transformer has the effect of monitoring the temperature of the surface of the radiator in real time so as to cool the radiator in time.
Owner:HOHAI UNIV CHANGZHOU

Water surface floating object collecting device

PendingCN111622194AQuick collection of effectsSimplify collectionWater cleaningWater flowEnvironmental engineering
The invention provides a water surface floating object collecting device, and relates to the technical field of water body treatment. The water surface floating object collecting device is mainly usedfor solving the technical problem that in the prior art, the collection of water surface floating objects is inconvenient. The water surface floating object collecting device comprises a drainage mechanism and a collecting barrel. The upper end of the collecting barrel is located above the liquid level, and a filtering screen is arranged at the lower end of the collecting barrel. The drainage mechanism is located below the liquid level, and when the drainage mechanism is started, the liquid which is located in the collecting barrel can be downwards drained. The drainage mechanism and the collecting barrel are connected with each other through a movement mechanism. When the drainage mechanism is started and downwards drains water, the drainage mechanism can upwards move due to the counteracting force, the movement mechanism works under the action of the drainage mechanism and pulls the collecting barrel to downwards move to the space located below the water surface at this moment, andthe water surface floating objects can flow into the collecting barrel along with the water flow at this moment. The water surface floating object collecting device is used for water body environmenttreatment and can conveniently achieve the collection of water surface floating type garbage.
Owner:BOYA GONGDAO BEIJING ROBOT TECH CO LTD

Safety bicycle with rotation speed detection device

The invention discloses a safety bicycle with a rotation speed detection device. The safety bicycle with the rotation speed detection device comprises a bicycle frame, a front wheel installed below the front end of the bicycle frame through a front rotation shaft and a rear wheel installed below the rear end of the bicycle frame through a rear ration shaft, wherein the front wheel and the rear wheel can be replaced with electric wheels, an electric control device is installed, and the electric control device comprises a controller and an automatic control chip. Based on the above structure, a control device, a rotation speed sensor and a quick breaker are added, wherein the control device is installed on the bicycle frame, a storage module and an alarm module are installed in the control device, the rotation speed sensor is installed on the front wheel, and connected with the control device through an electric wire, and transmits collected rotation speed signals to the control device, the quick breaker is connected with the electric control device through another electric wire, and simultaneously connected with the control device through a wireless signal, and the control device controls opening and closing of the quick breaker, and then controls opening and closing of the electric control device.
Owner:WUHU CHUNYUAN PHOTOELECTRIC EQUIP TECH CO LTD
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