43results about How to "Realize automatic shutdown function" 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 floating type multifunctional hydrant for farmland pipeline irrigation. The floating type multifunctional hydrant is mainly composed of an upper hydrant body and a lower hydrant body. The floating type multifunctional hydrant is characterized in that a semi-fixed type split combined structure is adopted in the hydrant, the lower hydrant body is fixed below the ground, a floating type water check valve is arranged in the lower hydrant body, the lower hydrant body is placed in a concrete protective pipe and connected with a pipeline through a three-way vertical pipe to form a fixing device used for supplying water to a farmland; the upper hydrant body is matched with the lower hydrant body. The floating type multifunctional hydrant is simple in structure, convenient and fast to assemble and install, long in service life and high in cost performance. In a non-irrigation season, the lower hydrant body is fixed in the concrete protective pipe below the ground, so the problems that the hydrant affect agricultural machinery cultivation and can be collided and damaged easily are solved. The floating type water stop technology is adopted in the lower hydrant body, and an automatic closing function is achieved through buoyancy of water in the pipeline. The floating type water stop structure has functions of a suction and exhaust valve, and solves the problem that the pipeline is damaged due to water hammer impact and backwater negative pressure.

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 water heater control method with an automatic shutdown function and a water heater and aims to overcome the defect that energy is wasted if an existing water heater is forgot to be shut down. The method includes: under a automatic shutdown mode, the water heater is automatically shut down when water is heated to set temperature and set heating times are reached. The water heater comprises a display, a master control panel and a temperature sensor. The display comprises a button, a display screen, a display signal interface and a control unit. The master control panel comprises a power supply, a temperature sensor interface and a master control signal interface. By the control method, energy waste caused by the fact the water heater is forgot to be shut down is avoided, one-button shutdown is basically achieved, and good user experience is achieved.

The invention relates to a corrugated board printing machine and an automatic stop control system for a paper feeding failure thereof, wherein the corrugated board printing machine is provided with a paper feeding machine set, a multi-color printing machine set and at least one work and postprocessing machine set connected in other sequence; the corrugated board printing machine is characterized in that a paper feeding counting sensor is arranged at the paper outlet of the paper feeding machine set; a paper outlet counting sensor is arranged at the paper inlet or paper outlet of the tail end machine set of the corrugated board printing machine; the data obtained by the paper feeding counting sensor and the paper outlet counting sensor are analyzed and processed by a PLC (Programmable logic Controller), and is displayed through a human-machine operation interface. The invention aims to provide an automatic stop control system for a paper feeding failure of the corrugated board printing machine, which can realize automatic stop function of paper feeding failures in printing machines, so that the self-diagnostic protection processing ability of failures in the printing machines is improved, the safety of device and human is ensured, the waste of paper boards is greatly reduced, the operation is convenient, and the work efficiency is improved.

The embodiment of the invention discloses an OBD (On-Board Diagnostics) device and a method for automatically starting and closing the OBD device. The OBD device solve the technical problem that the existing OBD product is started and closed by a mechanical switch, and the electronic product with the OBD is physically disconnected by a mechanical shutdown method, experience is greatly reduced, and the battery power of the vehicle is low because the OBD electronic device is often forgotten to be closed due to personnel factors. The OBD device of the embodiment comprises a MCU (Micro-programmed Control Unit), a power supply management apparatus, a switch controller and an electronic switch, wherein the MCU is respectively connected with the power supply management apparatus and the switch controller, the power supply management apparatus and the switch controller are together connected with an electronic switch, and the other end of the electronic switch is connected with the OBD interfaces; the MCU is used for in real time monitoring the vehicle speed and revolving speed of the automobile through the OBD interfaces, if the vehicle speed and the revolving speed are zero, control signals are output to the switch controller to connect and disconnect the electronic switch, so that output is absent from the power supply management apparatus.

The invention provides a power distribution cabinet. The power distribution cabinet comprises a box body, an action bottom plate, an inductor, an intelligent circuit breaker and an intelligent currentstabilizer, and a baffle is fixed to the left side face of the box through a second series of bolt sets. An upper guide groove and a lower guide groove are respectively formed in the upper and lowersides of the rear side surface of the box body; an upper limiting column and a lower limiting column are respectively arranged in the upper guide groove and the lower guide groove; and a connecting strip is fixed to the right side face of the driving plate through a first series of bolt sets. The right portion of the flexible plate penetrates through the passing column to be connected with the rear end of the middle column, the bottom of the passing column is fixedly connected with the bottom of the box body through the fixing connecting arm, the front end of the middle column is fixedly connected with the rear end of the pull belt, a fixing column is arranged on the right side face of the box body, and the top of the pull belt is fixedly connected with the right end of the rack. Accordingto the technical scheme, the technical problems that in the prior art, the box door automatic opening function is not achieved, the capacity of rising when meeting water, intelligent power failure, intelligent current stabilization and the like are effectively solved, and application and popularization are facilitated.

The invention provides a novel model airplane remote controller comprising two operation rods arranged on the left side and the right side abreast. Each operation rod is provided with a start base. A middle switch is arranged between the two operation rods. The left side and the right side of the middle switch are provided with an inclined push part in the front-back direction each. Each start base is provided with a throttle control part. A swing arm pressed against the corresponding throttle control part in a natural state is arranged beside each start base; each swing arm is provided with a return spring and a protruding pillar; each protruding pillar extends to the inclined push part on the corresponding side to be matched with the inclined push part. The left and right operation rod throttle switching function can be fulfilled by pushing the middle switch up and down and back and forth simply; the switching movement is simple and convenient; the whole throttle switching process is smooth and stable; the switching operation process is good in hand feel, so that the novel model airplane remote controller meets the requirement for comfortable experience of model airplane lovers and operators.

An umbrella-shaped valve is mainly composed of a valve plate and a guide rod. A concave push valve seat is arranged at the center of the top face of the valve plate. The outer edge of the valve plate is provided with a water stop rubber ring, a water stop rubber ring reserved hole and a reserved groove. The top face of the water stop rubber ring is provided with a convex ring water stop line with an inclination angle. The valve plate is of a trapezoidal-cross-section hollow structure. A bottom seal cover is arranged at the bottom of a hollow area and is of a circular-arc-shaped structure. The center of the bottom seal cover is of a cylindrical internally-threaded structure. The guide rod is arranged in the cylindrical internally-threaded structure. Threads on the upper portion of the guide rod are connected with the cylindrical internally-threaded structure in a glue joint manner.

The invention discloses a recycling and filling machine for an automobile air conditioner refrigerant and application of the recycling and filling machine. The machine comprises a high-low pressure connector, a high-low pressure valve group, a confluence valve block, an expansion valve, a heat exchange oil separator, a drying filter, a compression mechanism and a working tank. The recycling and filling machine is connected with an automobile air conditioner through the high-low pressure connector. The high-low pressure connector, the high-low pressure valve group, the confluence valve block, the expansion valve and the heat exchange oil separator are connected in sequence, the heat exchange oil separator is further connected with the drying filter and the compression mechanism in sequence,and the compression mechanism is connected with the heat exchange oil separator and the working tank. According to the recycling and filling machine for the automobile air conditioner refrigerant andapplication of the recycling and filling machine, the structure is simple, recycling, purifying and filling of the refrigerant are integrated, resources are not wasted, no potential threat is causedto global climate warming, device stability is good, the failure rate is low, and the application range is wide.

The invention discloses a suction tube capable of being automatically closed, which comprises a suction tube body, wherein at least one semicircular wrinkle capable of enabling the suction tube body to be bent into two sections is arranged on a tube body of the suction pipe body. When the suction tube is manufactured, the semicircular elastic wrinkle capable of enabling the tube body to be naturally bent into two sections is arranged on the tube body, the upper section of tube body is upwards lifted during sucking, and a pipeline is conducted; and the upper section of tube body is downwards bent under the elasticity of the wrinkle during non-sucking, the wrinkle is used for disconnecting the pipeline, thus the function of automatically closing the suction tube is realized.

The invention discloses an automatically opening and closing leakage-proof nozzle cap comprising a screwing bottle cap. A hole is opened in the top surface of the screwing bottle cap. A water outlet component which can discharge water after being pulled and can be automatically closed after being released is installed inside the hole. Due to the fact that the outer wall of a suction pipe component firmly sticks to a reversed cone shaped water outlet hole, the fluid inside the bottle cannot outflow from the reversed cone shaped water outlet hole. When a user wants to drink the liquid, the upper end of the suction pipe can be pulled, the lower end of the suction pipe can move obliquely at the same time, a pipe presses against the reversed cone shaped water outlet hole can pry up the reversed cone shaped water outlet hole, thereby deforming and enlarging the aperture of the hole, and the fluid inside the bottle can flow into a hollow frustum through the water outlet hole and then flow outside the bottle through the inner hole of the pipe after flowing into the water outlet of the pipe, thereby achieving the drinking upon opening the bottle; when releasing the suction pipe component, the suction pipe component returns to a vertical state, thereby achieving an automatic closing function. The automatically opening and closing leakage-proof nozzle cap is clean and sanitary, and is convenient to carry the bottle.

The invention discloses a full-geographical lift type farmland pipeline irrigation multifunctional hydrant which mainly comprises an upper hydrant and a lower hydrant. The full-geographical lift type farmland pipeline irrigation multifunctional hydrant is characterized in that the hydrant is of a semi-fixed split type combination structure, and the lower hydrant is arranged below a ground cultivated layer and is connected with a pipeline tee to form a fixing device for supplying water to farmlands; the lower hydrant is in a piston type ascending and descending mode; the upper hydrant is matched with the lower hydrant, crossed support ribs and a starting drive nut are arranged at the bottom of the upper hydrant, so that a special tool for downwardly pushing a floating body and starting the lower hydrant is formed; a slide rail is arranged on the inner side of an outer shell, and a stop valve of the floating body is mounted on the slide rail of the outer shell. The full-geographical lift type farmland pipeline irrigation multifunctional hydrant has the advantages that the lower hydrant is completely buried under the ground cultivated layer, so that the difficult problem of influence of an existing hydrant on cultivation of agricultural machinery can be thoroughly solved; multiple functions such as automatic ascending, automatic closing, air inlet and exhaust and water consumption metering are integrated in the hydrant; the full-geographical lift type farmland pipeline irrigation multifunctional hydrant is simple in structure, components of the hydrant can be combined with one another and can be mounted conveniently and quickly, and the various functions can be realized stably.

The invention relates to the technical field of display, and discloses a flexible display device. The flexible display device comprises an infrared emission module, a flexible display screen and a control module, wherein the flexible display screen comprises a bottom plate, a first infrared receiving module and an anode; light transmission holes are formed in the anode; the vertical projection ofthe light transmission hole on the bottom plate covers the vertical projection of the first infrared receiving module on the bottom plate; the first infrared receiving module is used for being alignedwith the position of the infrared emission module when the flexible display screen is in a bent state so as to receive first infrared rays sent out by the infrared emission module; the control moduleis connected with the first infrared receiving module through signals, and is used for controlling the display state of the flexible display screen to the closed state when the first infrared receiving module receives the first infrared rays emitted by the infrared emission module. The flexible display device has the advantages that the first infrared receiving module and the infrared emission module are arranged in different regions; the automatic turning-off function of the flexible screen in the bending state is realized; the space is saved.

The invention provides an air conditioner and a starting and stopping control circuit thereof. By arranging a time relay, the air conditioner is powered on before office time, then a coil of a contactor is powered on, two normally open contacts of the contactor are controlled to be closed, and two power input ends of the controller receive power through an external power source breaker and begin to work, so that the temperature is adjusted to a needed comfortable temperature before office time. Through settings on the time relay, the air conditioner is powered off after office time, then the coil of the contactor is powered off, the two normally open contacts of the contractor are controlled to be opened, and the two power input ends of the controller can not receive the power and stop working, so that the function of automatic shutdown after office time is realized. The trouble caused by manual operation and the possibility of resource waste are avoided.

The invention relates to an electronic atomization device and a control method thereof. The control method of the electronic atomization device comprises the steps that whether a trigger signal generated by a detection module is received or not is detected; the trigger signal comprises at least one of a pressing signal generated by the key module and a suction signal generated by the airflow sensing module; and when the trigger signal is detected, the atomization module is controlled to be heated to a preset atomization temperature, so that atomized liquid in the electronic atomization device is atomized to generate aerosol. According to the control method of the electronic atomization device, when the electronic atomization device is in a low-temperature environment, atomized liquid is condensed to block an airflow channel, and a user is difficult to start or cannot start during suction, the key module can be pressed to drive the atomization module to be conducted and emit heat, the atomized liquid is heated and atomized, and the user can use the electronic atomization device to control the electronic atomization device. And the problem that an airflow channel is blocked by atomized liquid is solved, then the atomization module can be started in a suction mode, use is convenient and fast, and the use experience of a user is improved.

The invention discloses a temperature control closing device applied to the field of fireproof doors and windows. The temperature control closing device comprises a pull rod, a rotary part, a pivot and a rotary part driving mechanism, wherein a first rotary arm is arranged on the rotary part; the pull rod and the rotary part are both mounted on the pivot, and a damping structure is arranged between the pull rod and the rotary part; and the rotary part driving mechanism can lock the rotary part when not detecting occurrence of a fire and can drive the rotary part to rotate and drive the pull rod to rotate through the first rotary arm when detecting occurrence of the fire. The temperature control closing device can automatically close a door or window in case of the fire. Meanwhile, the temperature control closing device is simple and compact in structure, capable of saving the door and window space, good in opening and closing flexibility and convenient to operate and does not need to overcome the automatic closing acting force in daily use.

The embodiment of the present invention discloses an OBD device and its method for realizing automatic power-on and automatic power-off, which solves the problem that the existing OBD products adopt the method of mechanical switch to switch the machine, because the electronic products connected with OBD generally adopt mechanical power-off The method of physical disconnection greatly reduces the experience, and often forgets to turn off the OBD electronic device due to human factors, which leads to technical problems of low battery power in the car. The OBD device of the embodiment of the present invention comprises: MCU, power manager, switch controller and electronic switch, MCU is connected with power manager and switch controller respectively, and power manager and switch controller are connected with an electronic switch jointly, The other end of the electronic switch is connected to the OBD interface; among them, the MCU is used to monitor the vehicle speed and rotation speed of the vehicle in real time through the OBD interface. The device has no output.

The invention discloses a floating type multifunctional hydrant for farmland pipeline irrigation. The floating type multifunctional hydrant is mainly composed of an upper hydrant body and a lower hydrant body. The floating type multifunctional hydrant is characterized in that a semi-fixed type split combined structure is adopted in the hydrant, the lower hydrant body is fixed below the ground, a floating type water check valve is arranged in the lower hydrant body, the lower hydrant body is placed in a concrete protective pipe and connected with a pipeline through a three-way vertical pipe to form a fixing device used for supplying water to a farmland; the upper hydrant body is matched with the lower hydrant body. The floating type multifunctional hydrant is simple in structure, convenient and fast to assemble and install, long in service life and high in cost performance. In a non-irrigation season, the lower hydrant body is fixed in the concrete protective pipe below the ground, so the problems that the hydrant affect agricultural machinery cultivation and can be collided and damaged easily are solved. The floating type water stop technology is adopted in the lower hydrant body, and an automatic closing function is achieved through buoyancy of water in the pipeline. The floating type water stop structure has functions of a suction and exhaust valve, and solves the problem that the pipeline is damaged due to water hammer impact and backwater negative pressure.

The invention provides a novel model airplane remote controller comprising two operation rods arranged on the left side and the right side abreast. Each operation rod is provided with a start base. A middle switch is arranged between the two operation rods. The left side and the right side of the middle switch are provided with an inclined push part in the front-back direction each. Each start base is provided with a throttle control part. A swing arm pressed against the corresponding throttle control part in a natural state is arranged beside each start base; each swing arm is provided with a return spring and a protruding pillar; each protruding pillar extends to the inclined push part on the corresponding side to be matched with the inclined push part. The left and right operation rod throttle switching function can be fulfilled by pushing the middle switch up and down and back and forth simply; the switching movement is simple and convenient; the whole throttle switching process is smooth and stable; the switching operation process is good in hand feel, so that the novel model airplane remote controller meets the requirement for comfortable experience of model airplane lovers and operators.

The invention discloses a testing device and a testing method for a corner sensor, and relates to the technical field of functional verification devices for the angle, the angular speed and additionalfunctions of the corner sensor. The invention in particular relates to the testing device and the testing method for the corner sensor. The device comprises a stepping motor, a bracket, a stepping motor speed reducer, a tested sensor mounting position, a transmission shaft, a transmission shaft fixing device, a chassis, a sensor fixing device and a slide rail, the support, the transmission shaftfixing device and the sliding rail are arranged on the chassis, the stepping motor is arranged on the left side of the support, the stepping motor speed reducer is arranged on the right side of the support, and one end of the stepping motor speed reducer is connected with the stepping motor. After the technical scheme is adopted, the invention has the beneficial effects that under the condition ofunmanned operation, the operation of a driver on a steering wheel can be accurately simulated by running test scripts, and various different driver operation modes can be verified by setting different test scripts.

The invention belongs to the field of reactor control and provides an automatic reactor shutdown system for a reactor. The automatic reactor shutdown system comprises a plurality of sensors for detecting whether a containment shakes or not, a plurality of sensing data processing modules, a first reactor shutdown signal generating module and a second reactor shutdown signal generating module, wherein the plurality of sensors are arranged on the containment and generate a plurality of analog acceleration signals; the plurality of sensing data processing modules generate a plurality of first logic signals according to the plurality of analog acceleration signals; the first reactor shutdown signal generating module generates a first reactor shutdown signal according to the plurality of first logic signals; the second reactor shutdown signal generating module generates a second reactor shutdown signal according to the plurality of first logic signals; the first reactor shutdown signal and / or the second reactor shutdown signal controls the reactor to shut down. The automatic reactor shutdown system for the reactor under the condition that the containment shakes, provided by the invention, still can realize an automatic reactor shutdown function of the reactor when a single reactor shutdown signal generating module has faults or a single sensing data processing module has faults.

The invention relates to the technical field of health physiotherapy equipment, in particular to a one-way self-closing communicating vessel. The communicating vessel comprises a female seat assemblyand a male connector body. The female seat assembly comprises a female seat shell, an air-entrapping chamber formed in the female seat shell, a communicating hole and a sealing cover; the male connector body is provided with a male connector pipe which is detachably connected with the communicating hole in a sealed mode; when the male connector pipe is completely inserted into the communicating hole and is connected with the communicating hole in a sealed mode, the sealing cover is jacked by the male connector pipe to be separated from the communicating hole. When the male connector pipe is inserted into the communicating hole, the sealing cover is jacked up by the end of the male connector pipe, and due to the existence of the interval, the gas in the gas filling chamber can smoothly enter the male connector pipe to achieve the communicating gas filling function. When the male connector pipe is pulled out, the sealing cover rapidly abuts against the hole opening of the communicating hole under the action of air pressure or an elastic piece and blocks the communicating hole, so the automatic closing function of the communicating vessel is achieved, and only the male connector pipeneeds to be inserted or pulled out; the communicating vessel has the advantages of being simple in structure, high in response speed and accurate in on-off in place.

The invention discloses an adsorbing and fixing device for an electric power tool. The device comprises a binding strap, hook and loop fasteners, a fixing plate, fixing slotted holes, first magnet blocks, second magnet blocks, spindles and baffles, wherein two ends of the binding strap are provided with the mutually-cooperated hook and loop fasteners; the middle of the binding strap is provided with the arc-shaped fixing plate; the fixing plate is provided with a plurality of fixing slotted holes in parallel; the fixing slotted holes are long and narrow; the lower end of each fixing slotted hole is provided with an opening; the inner side walls of two ends of each long and narrow fixed slotted hole are independently provided with the first magnet block; one edge of the opening on the lower end of each fixing slotted hole is provided with the spindle; each spindle is connected with one end of each baffle; each baffle can rotate around each spindle; the other edge of the opening on the lower end of each fixing slotted hole is provided with the second magnet block; the movable end surface of each baffle is in contact with the outer end surface of each second magnet block; and a receiving bag is arranged just below the fixing plate and is connected with two ends of the fixing plate through a stay cord. The device has the advantages of simple structure, convenience in use, high safety and convenience in taking and fixing, and dual protection is realized.

The invention discloses a hydraulic dam gate angle detection device and an application thereof. The hydraulic dam gate angle detection device comprises at least one group of angle detection devices, wherein each angle detection device is installed on each gate of a hydraulic dam; each angle detection device comprises a waterproof base, an inclination angle sensor, a wiring terminal strip, a waterproof cable and a control system, wherein the waterproof base is arranged on a steel dam gate; the inclination angle sensor is arranged in the waterproof base, and the inclination angle sensor is parallel to the center line of the steel dam gate; the wiring terminal strip is electrically connected with the inclination angle sensor; and the wiring terminal strip is connected with the control systemthrough the waterproof cable. The top elevation of the gate can be calculated according to the included angle between the gate of the current hydraulic dam and the horizontal plane. Therefore, the water level control and automatic alignment of multiple hydraulic dam gates at any positions can be realized.

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 aims to provide a safety protection emergency switch-on / off device with the automatic closing function. When the switch-on / off is needed, a lead screw is inserted into an insertion hole.A cover plate is pushed rightwards by the lead screw through a through hole, so that the lead screw enters a box body for realizing the switch-on / off operation. At the moment, a spring is in an expanded state. When the lead screw is pulled out, the cover plate returns to the initial position to block the through hole due to the action of the spring. In this way, the automatic closing function isachieved. An outer column and an outer hole are arranged. When the switch-on is not needed, an insertion column is inserted into the outer hole from the upper portion of a longitudinal channel to block the outer hole. The random insertion of the lead screw is avoided, and the operation is convenient. The working efficiency is improved.

The invention relates to a corrugated board printing machine and an automatic stop control system for a paper feeding failure thereof, wherein the corrugated board printing machine is provided with a paper feeding machine set, a multi-color printing machine set and at least one work and postprocessing machine set connected in other sequence; the corrugated board printing machine is characterized in that a paper feeding counting sensor is arranged at the paper outlet of the paper feeding machine set; a paper outlet counting sensor is arranged at the paper inlet or paper outlet of the tail end machine set of the corrugated board printing machine; the data obtained by the paper feeding counting sensor and the paper outlet counting sensor are analyzed and processed by a PLC (Programmable logic Controller), and is displayed through a human-machine operation interface. The invention aims to provide an automatic stop control system for a paper feeding failure of the corrugated board printing machine, which can realize automatic stop function of paper feeding failures in printing machines, so that the self-diagnostic protection processing ability of failures in the printing machines is improved, the safety of device and human is ensured, the waste of paper boards is greatly reduced, the operation is convenient, and the work efficiency is improved.

The present invention provides an automatic anti-deviation device and automatic anti-deviation method for annealing furnace rolls. The device includes a bellows and an adjustment box fixed on the bottom of the bellows; It is connected to the air inlet hole of the adjusting box, and an eccentric cover plate is installed at the air inlet hole through a rotating shaft, and the rotating shaft is fixed on the bottom surface of the adjusting box; a disc is sleeved on the rotating shaft, and the disc circumscribes a pair of symmetrically arranged moving bars; Each moving bar is arranged along the axial direction of an air supply duct; a guide groove for accommodating the moving bar is set on the air supply duct; one side of the moving bar extends into the air supply duct; both ends of the moving bar pass through springs It is fixed in the air supply pipe; the gas flow in the pair of air supply pipes is opposite; the pair of air supply pipes are located in the regulating box; one end of the pair of air supply pipes is located outside the regulating box. In the present invention, the protective gas can be regulated after the box is adjusted to reduce the waste of the protective gas, which is energy-saving and environment-friendly.

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 withone 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.