396results about How to "Achieve automatic shutdown" patented technology

The automatic shut-off structure for large refrigerator door to be set in the upper and / or lower part of the door includes one connector and one hinge axis connected to the connector. The connector has one rectangular first support wall with one central through hole and one second support wall; and the hinge axis has one end passing through the central through hole and the other end socketed with one upper hinge and one spring before fixed through one spring end plug. The present invention has one cam with inclined surface and one spring set to one end of the cam, and when two slanted bosses move relatively, the cam will extrude the spring and the door with great weight is pulled back by the deformed spring to close.

The invention discloses a healthy type air purifier suitable for smart homes. The healthy type air purifier includes a purifier base, a controlling panel, a wind-in steel mesh, a lifting protective cover, a wind outlet, a wind-out mesh, a moving roller, an air-detecting device, a fiber-filtering mesh, an HEPA filter layer, a cold catalyst filter layer, an activated carbon filter layer, an automatic lifting and controlling mechanism, an anion fan and a humidifying fragrance activity device; and the controlling panel is embedded at the front surface of the purifier base, and the controlling panel is electrically connected with the air-detecting device, the anion fan and the humidifying fragrance activity device. The healthy type air purifier suitable for the smart homes has the beneficial effects that the automatic lifting and controlling mechanism is used for controlling the protective cover to automatically lift to show a wind inlet when the purifier is electrified to operate and further is used for controlling the protective cover to automatically fall to cover the wind inlet when the purifier is not electrified, the dust can be prevented from entering the purifier, the space is decreased simultaneously, the automaticity of the healthy type air purifier suitable for the smart homes can be effectively improved, and the service life can be prolonged.

The invention relates to a window closing device. The window closing device comprises a first sliding groove arranged on a cross bar at the upper portion of a window opening fan and a sliding block cooperating with the first sliding groove. The sliding block is hinged to a sliding rod through a first tightness adjusting mechanism; a positioning unit is arranged in the first sliding groove; the positioning unit is connected with a second tightness adjusting mechanism; the second tightness adjusting mechanism is connected with a power mechanism through a connecting rod. The power mechanism comprises a fixing unit and a sliding unit; an elastic unit and a thermal sensing element are arranged between the fixing unit and the sliding unit; the sliding rod is connected with a closer arranged on a window frame. The invention also provides a fireproof window containing the window closing device. According to the window closing device, by arranging the first sliding groove and the sliding block cooperated with each other and the thermal sensing element, when the thermal sensing element is heated and broken, the sliding block drives the sliding rod to carry out the linkage, the sliding rod and the closer are cooperated with each other, and the window is opened and closed automatically in the case of fire; the window closing device is matched with the window closing device to realize real fireproof function. The window closing device is exquisite in structure design, does not affect the installation of other devices after the window closing device is installed, is relatively beautiful and strong in practicability.

The invention discloses a control device with an intelligent water level detection function. The control device with the intelligent water level detection function comprises a controller mounted on a water fountain, and further comprises a tray arranged below a water outlet of the water fountain. A container induction device is arranged on the tray. A container height detection device is vertically arranged between the tray and the water outlet. A water level detection device is arranged at the position as high as the water outlet. The controller is in control connection with the container induction device, the container height detection device, the water level detection device and the water outlet respectively. The control device with the intelligent water level detection function has the advantages of being simple in structure and wide in application range; the control device senses a water taking container through the container induction device, measures the height of the water taking container through the container height detection device and measures the height of the water level in the water taking container through the water level detection device, so that automatic and intelligent operation of the water fountain in the water taking process is achieved, the control method is simple, and the water fountain is more convenient, efficient and safe to use in the water taking process.

The invention discloses a method and device for controlling a screen of an electronic display device and a display system. The method comprises the steps of detecting whether an onlooker exists in front of the screen of the electronic display device; at least the screen of the electronic display device is turned off if no onlooker exists in front of the screen of the electric display device, and the sound function of the electric display device is maintained so as to output a sound. In this way, according to the method and device for controlling the screen of the electronic display device and the display system, the screen can be turned off automatically, a user can use the device conveniently, and the service life of the device can be prolonged easily.

The invention relates to a domestic gas and water valve safety monitoring and automatic closing device, and belongs to the field of safety devices. A locking rotation disk with a locking notch and a locating protruding piece is arranged on a ball valve of the device, a spring energy storage assembly fixedly connected with an opening / closing handle of the ball valve is arranged, and an electromagnetic assembly with a telescopic core and a position detecting assembly are arranged near the locking rotation disk. During temperature, smoke and gas concentration detection or when a water valve water leakage sensor outputs a signal or when a closing button switch of the ball valve is pressed down, the telescopic core of the electromagnetic assembly contracts from the locking notch of the locking rotation disk, the opening / closing handle of the ball valve together with the locking rotation disk rotates rapidly to the valve closing position under the driving of the spring energy storage assembly, and a total gas inlet pipe or a water pipe is closed automatically; meanwhile, the position detecting assembly outputs a valve closing signal to a concentrated monitoring control box, and therefore the safety monitoring and the automatic closing functions of domestic gas and water valves are realized.

The invention discloses a vehicle-mounted oiling steam reclamation and fuel oil liquid level controlled decompression integrated device. A one-way valve, a slope valve and a fuel oil liquid level controlling decompression valve are fixedly arranged on the tank body of a fuel tank; a valve seat is fixed and sleeved in the valve body of the one-way valve, the internal middle of the valve seat is provided with a valve, and the top of the valve is conical and passes through a corresponding hole on the top surface of the valve seat; a conical filter screen is right ahead of the top of the valve; and the upper left part of a main valve body cavity of the fuel oil liquid level controlling decompression valve is provided with a main exhaust hole, the main valve body is provided with a fuel oil liquid level control valve and a fuel oil liquid level high-pressure decompression valve, and the upper right part of the main valve body cavity is provided with a fuel oil liquid level high-pressure decompression valve which is provided with a decompression hole formed on the main valve body and communicated with the main valve body cavity. The high-pressure decompression valve and the fuel oil liquid level control valve are made into a whole, so the device has a compact structure, improves the sensitivity and the reliability, reduces oiling discharge, avoids fuel oil leakage and realizes recycle of oil and gas.

The invention discloses maintenance device and device of a display screen, relating to an information-processing technology and aiming to solve the problems that long-time display of a static image can leave a residual image on the display screen and even causes a permanent screen burn on the display screen. The invention adopts the technical scheme: timing a static image displayed on the displayscreen; and stopping displaying the static image when the time reaches a preset time. The maintenance device and device can be applied to display devices capable of generating residential images, suchas a plasma display, a cathode-ray tube, and the like.

The invention provides an intelligent oil tank cover control device and the control method thereof, which belong to the automotive technical field. The invention solves the problem that the oil tank cover is not intelligent in the opening operation. The device includes an ignition switch, an oil tank cover closing switch, and an oil tank cover motor used for realizing oil tank cover opening / closing, and further includes a main control unit used for receiving and processing detection signals and then judging output control orders, and a camera used for collecting oil tank ambient environment image data, wherein an intermediate conversion unit is connected between the main control unit and the camera, an input port of the main control unit is connected with the ignition switch and the oil tank cover closing switch respectively, an output port of the main control unit is connected with the oil tank cover motor, and the main control unit is used for controlling the oil tank cover motor to operate to close or open the oil tank cover. The control method comprises the steps as follows: A, awaking the control unit; B, obtaining refueling information; C, executing control commands; and D, feeding execution results back. The control device and method can realize the automatic opening and closing operation of the automotive oil tank cover, and improve intelligence.

The invention provides a refrigerator and an automatic door opening and closing method of the refrigerator. The refrigerator comprises a box body, a door body, a driving mechanism, a sensing device and a controller, wherein a storage chamber is arranged inside the box body; an opening communicated with the storage chamber is arranged on one side of the box body; the door body is movably arranged at the opening; the door body has a door closing state that the opening is closed and a door opening state that the opening is opened; the door body is connected with the driving mechanism in a driving manner; the driving mechanism is used for driving the door body to move; the sensing device is used for sensing actions of storing / taking of articles in the storage chamber and produces a sensing signal; the controller is electrically connected with the sensing device and the driving mechanism and is used for controlling the driving mechanism to drive the door body to move to the door closing state according to the sensing signal of the sensing device. The refrigerator has a simple structure, provides convenience for users and avoids electricity waste.

The invention provides a device for sealing a plate valve through pretightening. The device comprises the plate valve, a plate valve seat, a torsion spring, a pin, an inner barrel, an outer barrel and a locating pin, wherein the plate valve seat is connected with the outer barrel by a thread; the axis of rotation of the plate valve coincides with the center line of the torsion spring; the plate valve is connected with the plate valve seat by the pin; the locating pin is arranged at one end of the pin; the torsion spring has double-side elasticity; the free ends at the two sides of the torsion spring are inserted into deep holes reserved on the plate valve seat; and the middle extension section of the torsion spring is contacted with the upper end face of the plate valve. The device has the following beneficial effects: before the plate valve closes, the elasticity acts on the upper end face of the plate valve to realize automatic closing of the plate valve; and after the plate valve closes, the lower end face of the plate valve is contacted with the narrow ring surface protruding from the middle of the plate valve seat, and as the contact area of the ring surface is small and the contact surface of the plate valve and the plate valve seat slants relative to the plate valve seat, the impact of the impurities on the contact surface is reduced and sealing is easier to realize, thus ensuring the self-tightness of the plate valve and improving the reliability of other operations.

The invention relates to the technical field of hinges, and discloses a refrigerator door hinge with a damping buffering structure. The refrigerator door hinge comprises a base used for connecting a refrigerator cabinet body, and a connecting rod used for connecting a refrigerator door, wherein the base is rotatably connected with a cam disc by virtue of a center pin shaft, one end of the connecting rod is provided with a connecting hole used for being connected with the refrigerator door, the other end of the connecting rod is connected with the cam disc by virtue of a first hinge shaft, thebase is provided with a cam jacking and pressing mechanism for controlling the rotating speed of the cam disc, and the cam jacking and pressing mechanism comprises a cam jacking and pressing head applying the pressure onto a cam surface of the cam disc; and the base is also provided with a damper for retarding the closing speed of the refrigerator door, the connecting rod is provided with a connecting rod extension section, and the end part of the connecting rod extension section is in contact with the damper when the refrigerator door rotation angle is smaller than or equal to a set criticalangle. By adopting the refrigerator door hinge with the damping buffering structure, the user experience to open and close the refrigerator door is improved, and the service life of products is prolonged.

The invention discloses a liquid filling device. The liquid filling device comprises a material storage tank, a material receiving tank, and a tunnel arranged above the material receiving tank. A material discharge pipe, which is communicated with the material storage tank, is arranged on the lower part of the material storage tank and extends outwardly. A material baffle plate is arranged to be perpendicular to the direction of the material discharge pipe, one end of the material baffle plate is inserted into any position of the material discharge pipe, the other end of the material baffle plate is provided with an electromagnet mechanism and a return spring, the electromagnet mechanism switches the on / off of a circuit, and the elastic return of the return spring changes the relative position between the material baffle plate and the material discharge pipe. The liquid filling device can solve the problem of overflowing during the filling process, can automatically detect whether the filling is complete or not, and improves the filling accuracy and work efficiency.

The invention discloses an elastic gateway system conducting opening and closing rapidly and a use method thereof. The system comprises a first gateway and a second gateway which are relatively spaced to each other. The first gateway comprises a telescopic stop piece, a drive mechanism, a power switching mechanism and an induction device, wherein when the telescopic stop piece retracts back, the induction device is used for judging whether an obstacle passes or not and sending a feedback signal to a power source after the obstacle passes, and after the power source receives the feedback signal, the telescopic stop piece is driven through a stretching drive mechanism to stretch out. By the adoption of the elastic gateway system, the telescopic stop piece is driven through the stretching drive mechanism to stretch out and driven through a retracting drive mechanism to retract back to control the entry and exit of the gateways, the gateway opening and closing speed of the system is high, and the system is simple and easy to operate. In addition, the passage state of a vehicle is monitored in real time through the induction device, the feedback signal is sent to the power source after the vehicle passes, the power source drives the telescopic stop piece to stretch out to achieve automatic closing, the automation degree and the intelligence degree of the system are high, and the passing speed of the gateways is increased.

The invention relates to a mechanical automatic shutoff gate valve, which comprises a turbine, transmission reducer and an automatic shutoff device. The turbine comprises a volute shell, an impeller is arranged in the volute shell, the middle part of the impeller is provided with an impeller shaft, the two ends of the volute shell are respectively provided with an oblique port, the outer sides of the two ends of het volute shell are respectively provided with a diversion net, and the outer sides of the diversion net are respectively provided with an end cover; the transmission reducer comprises a shell, a transmission wheel is arranged in the shell and is engaged with a main wheel, wherein the radius of the transmission wheel is smaller than the radius of the main wheel, the transmission wheel is provided with a transmission wheel shaft, the transmission wheel shaft is fixedly connected with the impeller shaft, the main wheel is provided with a main wheel shaft, and the main wheel shaft is provided with scales; the automatic shutoff device comprises a brake wheel, the brake wheel is provided with a groove, the upper part of the outer side of the brake wheel is provided with a brake lever, the end of the brake lever is provided with an elastic sheet, and the main wheel shaft is fixedly connected with the brake wheel. The invention has a simple structure, and can accurately control the total amount of the effluent completely through the mechanical device, realize the automatic shutoff, and realize the stepless regulation of the total amount of the effluent within the range of the maximum amount of the effluent.

The invention discloses a medical infusion stand. The medical infusion stand comprises an infusion chair, a supporting bracketis vertically fixed on the side wall of the infusion chair, a shell is fixed at the upper end of the supporting bracket, the shell is of a hollow structure, an opening is formed in one side of the shell, the inner wall of the upper end of the shell is connected with a hanging block through two first springs, the side wall of the upper end of the hanging block is provided with an infusion bottle, a bottle mouth of the infusion bottle penetrates through the hanging block,an infusion tube is inserted into the infusion bottle, the infusion tube penetrates through the side wall of the lower end of the shell, an ejector rod is arranged on one side wall of the hanging block, the side wall of the upper end of the shell is provided with an alarm device, theside wall of the lower end of the alarm device is provided with an alarm pressing switch, and the alarm pressing switch penetrates through the side wall of the upper end of the shell. According to the medical infusion stand, afterinfusion of the infusion bottleis completed, alarming can be automatically performed to remind nursesof replacing the infusion bottle, amanner of manually pressing an alarm switch is replaced, and the safety ofinfusion can be improvedin the absence of a guardian.

The invention provides an agricultural quantitative watering device based on internet of things and a use method thereof. The agricultural quantitative watering device based on internet of things comprises an installing plate, wherein the left end and the right end of the installing plate are in sleeved connection with connecting rods, the positions of the connecting rods are fixed through lockingscrews located at the tops of the connecting rods, the bottoms of the connecting rods are provided with vertically arranged columns, one side of each column is rotatably connected with a rolling wheel through a hinge pin, the central part of the top of the installing plate is connected with a connecting plate through a rotary rod, the top of the connecting plate is connected with a water storagetank, the top of the water storage tank is provided with a water inlet. After the agricultural quantitative watering device senses that moisture in soil reaches a set value through a temperature sensor and a humidity sensor which are buried in the earth's surface, a central control unit controls a water pump and a magnetic valve to be shut down, irrigation is stopped, water is saved, automatic stop of the irrigation process is achieved, and crop damage and water resource waste caused by broad irrigation are avoided.

The invention discloses an air-flow-adjustable rapid inflation valve which can be applied to plasma fracture remission. According to the requirement of EAST Tokamak plasma fracture remission, a great amount of inert gas is inflated within 10 milliseconds within very short time, thus the plasma fracture remission is realized so as to remit the damage to a Tokamak device caused by the plasma fracture. According to the invention, a great amount of inert gas is inflated in the Tokamak device within 5 milliseconds to remit the damage caused by the plasma fracture. The inflation valve provided by the invention has another obvious advantage that the inflation valve can work close to a strong magnet field without being influenced by the magnetic field, which can play a role in remitting the fracture in terms of the use effect; and the successful research of the valve provides a solid and reliable experimental tool for fracture prevention physical research on EAST in the future.

The invention discloses a terminal audio control method, device and a terminal, realizing automatically closing the audio function of the terminal. The control process is: obtaining the current position of the terminal, judging whether the terminal is located in an object region, such as whether the terminal is located in the object region of a bedroom, a meeting room and an opera house, according to the obtained position information, if the terminal is located in the object region, judging whether the triggering condition of closing the audio function is satisfied currently, when the condition is satisfied, automatically closing the audio function currently used by the terminal according to a preset rule; interference or embarrassment resulted from generating sound at unsuitable time by the terminal is avoided, and the user experience satisfaction is promoted.

The invention belongs to the technical field of wood material processing equipment, and particularly discloses a wood material drying device. The wood material drying device comprises a drying box, wherein a heating cavity, a circulation cavity and a drying cavity are arranged in the drying box, a fixing shaft is slidably connected with the interior of the drying cavity, an elastic piece is connected between the lower side of the fixing shaft and the lower part of the drying box, a power-off button is arranged above the fixing shaft, the fixing shaft is sleeved with a rotary shaft, and a plurality of arc-shaped grooves are formed in the two ends of the rotary shaft respectively; a first electromagnet is fixed in each arc-shaped groove, a second electromagnet is slidably connected with theinterior of each arc-shaped groove, a heat generator and an exhaust blower are arranged in the heating cavity, an air vent of the exhaust blower is located in the drying cavity, and the air vent is located in the right side of the rotary shaft; and a plurality of air cavities penetrating through the side wall of the rotary shaft is formed in the rotary shaft, the air cavities and the arc-shaped grooves are formed alternately, an air ventilation channel communicated with the air cavities is formed in the fixing shaft, and the two openings of the air ventilation channel are both located on the right side of the fixing shaft. The wood material drying device can drive wood materials to rotate and uniformly dry the wood materials, and meanwhile, automatic unloading of the wood materials and automatic shut down of the heat generator are achieved through the power-off button.

The invention discloses a natural gas hydrogenation device and method for a long-distance pipeline. The natural gas hydrogenation device comprises a pipeline part, a PLC and a safety protection part.The pipeline part comprises a main pipe, a first pipeline, a second pipe and a mixed total pipe. The second pipe is connected with the first pipeline. The main pipe and the first pipeline are connected with the mixed total pipe. A static mixer is installed on the mixed total pipe. The PLC is connected with the main pipe and the first pipeline correspondingly. The flow of hydrogen of the first pipeline is adjusted according to the pressure and flow information of the main pipe and the first pipeline, and the hydrogen is output via the static mixer on the mixed total pipe. The safety protectionpart includes a combustible gas alarm controller and a positive pressure explosion-proof control system and can send out sound-light alarm and protect an electrical device to operate safely under thedangerous environment of explosive gas. The natural gas hydrogenation device and method for the long-distance pipeline have the advantages of simple automatic control, large dosage, continuous operation, stable adding proportion, uniform mixing, no air discharge pollution, safety and reliability.

The invention discloses a control method for automatically turning off an automobile headlamp. The control method includes the steps: (1) monitoring and judging whether an automobile is switched off or not, continuing the step (1) if the automobile is not switched off, and shifting to the step (2) if the automobile is switched off; (2) judging whether an automobile door lock is locked or not, shifting to the step (3) if the automobile door lock is locked, and continuing the step (2) if the automobile door lock is not locked; (3) judging the on-off state of the automobile headlamp, shifting to the step (1) if the automobile headlamp is turned off, and shifting to the step (4) if the automobile headlamp still works; (4) cutting off a power supply of the headlamp by a control system. By the control method, the automobile headlamp can be automatically turned off when not in use, and unnecessary trouble of an automobile owner can be decreased. Besides, by the aid of pre-existing equipment of an existing vehicle, the whole device is simple in structure, low in cost and applicable to most vehicles.

The invention discloses a two-way automatic reset gate which comprises a gate frame (10), a gate leaf (2) and a rotating shaft (30), wherein the left side and the right side of the gate frame (10) are provided with magnets (40, 50), the left side and the right side of the gate leaf (20) are also respectively provided with magnets (60, 70) corresponding to the magnets (40, 50), and the magnets (60, 70) are attractive to the magnets (40, 50). After a push force or pull force of opening the gate leaf (20) is removed, under the action of the mutual attraction force of the magnets, the gate leaf (2) is pushed to be automatically closed, two-way automatic reset of the gate leaf (20) is realized, and the gate leaf (20) is reset stably and accurately without bounce.

The invention provides an intelligent disinfection and temperature-control child lunch box for protecting the health of a child digestion system, an intelligent disinfection and temperature-control system and a working method thereof. The intelligent disinfection and temperature-control system comprises the intelligent disinfection and temperature-control child lunch box and a mobile terminal; the intelligent disinfection and temperature-control child lunch box comprises a box body, a box cover, a dinner plate, an ultraviolet lamp, a switch, a temperature control device and a temperature sensor; and the intelligent lunch box further comprises a first processing unit and a first wireless communication unit, a second processing unit and a second wireless communication unit. The mobile terminal comprises a third processing unit and a third wireless communication unit. According to the intelligent disinfection and temperature-control system and the working method thereof, refrigeration or heating and heat preservation work is started when the temprature of foods is too high or too low, so that the foods reach a suitable edible temperature region, and therefore, the health of the child digestion system is protected.

The invention discloses a desktop computer case capable of being automatically opened and closed. The desktop computer case comprises a case body and a cover plate, wherein a loading groove provided with a rightward opening and used for loading computer accessories is formed in the case body; an operation groove having the same size as the opening of the loading groove and opposite to the loading groove is formed in the right end surface of the case body; a cover plate sliding groove provided with an upward opening and used for loading the cover plate is formed in the case body between the loading groove and the operation groove; the cover plate sliding groove connects the loading groove and the operation groove; and an opening-closing component is arranged in the case body at the top of the loading groove. The desktop computer case is simple in overall structure and low in cost; the cover plate is convenient and quick to mount and dismount; the desktop computer case is suitable for popularization and use; a vertical motion of the cover plate can be automatically driven to realize automatic closing and opening of the loading groove; and the cover plate can be upwards pulled out of the cover plate sliding groove when the cover plate is damaged and needs to be replaced, so that a new cover plate is inserted in the cover plate sliding groove to enable the upper part of a rack to be meshed with a gear.

The invention provides an intelligent disinfection temperature control children's water cup for protecting the health of children's digestive system, an intelligent disinfection temperature control system and its working method. The intelligent disinfection temperature control system includes an intelligent disinfection temperature control children's water cup and a mobile terminal. The children's water cup includes a cup body, a cup cover, an inner tank, an ultraviolet light, a switch, a temperature control device, and a temperature sensor. The smart water cup also includes a first processing unit and a first wireless communication unit, a second processing unit and a second wireless communication unit . The mobile terminal includes a third processing unit and a third wireless communication unit. As well as the intelligent disinfection temperature control system and its working method, if the temperature of the liquid is too high or too low, it will start cooling or heating and heat preservation work, so that the liquid reaches a suitable drinking temperature range, thereby protecting the health of children's digestive system.

The invention provides an information processing method and an air conditioner. The method comprises the steps that whether a door and a window which are placed in a space where the air conditioner is placed are in an opened state or a closed state is obtained by detecting; when the door and the window are in the opened state, whether at least one user exists in the space is detected, and a first detecting result is obtained; when the first detecting results shows the fact that the at least one user exists in the space, at least one piece of feature information of the at least one user is obtained by detecting; based on the at least one piece of feature information, whether a first user can be determined from the at least one user to be a proper user to enable the window and the door to be in the closed state is judged, and a first judging result is obtained; and when the first judging result is yes by judging, hinting information is generated and output, so that the first user is reminded to close the door and the window, and accordingly the door and the window are in the closed state.

The invention provides an automatic curtain control device. The automatic curtain control device mainly comprises a signal acquisition unit, an amplifying circuit, an outdoor controller, a signal transmitter, a signal receiver, an indoor controller, a transmission unit and a curtain. The signal acquisition unit senses sunlight via a solar panel arranged on a cloud deck and outputs signals according to the sunlight. The amplifying circuit is used for amplifying signals acquired by the signal acquisition unit. The outdoor controller is used for controlling the cloud deck to rotate and move and controlling detection and transmission of the signals. The signal transmitter transmits signals wirelessly. The signal receiver receives the signals transmitted by the signal transmitter. The indoor controller is used for controlling running of the integral curtain control device. The transmission device receives the signals transmitted by the indoor controller to drive running of a step motor. The curtain bilaterally slides under drive of the transmission device. By matching of all components, the curtain can be automatically opened when in high sunlight intensity and can be automatically closed when in weak sunlight, and thereby complete automatic running of the curtain is realized.

The invention relates to a control circuit for controlling the shutoff of fuel gas supply of a solenoid valve in emergency situation. The invention solves the problem that the fuel gas supply solenoid valve cannot be automatically shut off when a direct-current power supply stops power supply after the commercial power fails on the premise of not needing to consume additional electrical energy for a long time. The invention provides the fuel gas shutoff solenoid valve controller, which is connected with a capacitor (C), wherein the capacitor (C) forms a charging circuit with the direct-current power supply (VDC) on one hand, and forms a discharging circuit with the solenoid valve (L) on the other hand; and a coil (J1) of a relay is connected with a power supply terminal, so that the switching between the charging circuit and the discharging circuit can be performed according to the power supply / power failure stage of the direct-current power supply (VDC).