38results about How to "Normal shutdown" patented technology

The invention discloses a refrigerator which comprises a refrigerator body, a vertical beam, a guide column and an anti-collision mechanism, wherein a door body pivot shaft is connected to the front side of the refrigerator body; the vertical beam is arranged on a door body by extending in a vertical direction and rotatably mounted on one side far away from the door body pivot shaft; the anti-collision mechanism is provided with a guide groove; the guide column is movably matched in the guide groove for the convenience of moving in the guide groove to overturn or unfold the vertical beam when the door body is opened or closed; the anti-collision mechanism further comprises a guide part arranged to move left and right relative to the guide groove and first and second openings arranged to be close to the guide column and positioned on the same side of the guide groove; the first opening is used for guiding the guide column to enter or depart from the guide groove; and the second opening is used for unidirectionally guiding the guide column to enter the guide groove under the effect of the guide part. The refrigerator has the functions of two-rail closing and one-rail opening of the door body, so that a refrigerator door can be smoothly closed and better refrigerating effect can be obtained.

The invention discloses an automatic switching circuit for a main power source and a backup power source. The automatic switching circuit is composed of a power output terminal, a PMOS power source change-over switch, a first control logic unit and a power monitoring module. The power monitoring module determines whether a main power source meets a power supply requirement; if so, a main power source supply enabling signal is outputted to a first control logic unit; if not, whether a backup power source meets a power supply requirement is determined; and if so, a backup power source function enabling signal is outputted to the first control logic unit. The first control logic unit controls the main power source to output power to a power output terminal after receiving the main power source supply enabling signal and controls the backup power source to output power to the power output after receiving the backup power source supply enabling signal. The power monitoring module is used for comparing voltages of the main power source and the backup power source to select one power source with the higher voltage to provide power for the first control logic unit. Therefore, switching from the backup power source with the higher voltage to the main power source with the lower voltage is realized automatically. Moreover, the circuit is simple; the reliability is high; and the cost is low.

The invention discloses a TFT (thin film transistor) threshold voltage compensation method, a TFT (thin film transistor) threshold voltage compensation circuit, a shift register and a display device. The compensation circuit comprises an input end, an output end connected with a source electrode of a thin film transistor, a first resistor to a Kth resistor, which are sequentially connected with one another in series, a Kth connectable hinge and at least one connectable hinge, wherein the first resistor to the Kth resistor jointly divide the supply voltage input to the input end under the action of the switching on or off of the connectable hinges to control the voltage difference between a grid electrode and a source electrode of the thin film transistor to be equal to the current threshold voltage. In the scheme of the embodiment of the invention, a voltage division circuit with the connectable hinges is used for dividing the voltage input to the source electrode of the thin film transistor), so that when the voltage of the grid electrode of the thin film transistor is invariable, the voltage of the grid electrode and the source electrode of the thin film transistor is changed by changing the voltage of the source electrode; and therefore, the leakage current of the thin film transistor when the thin film transistor is turned off can be controlled, and the thin film transistor can be normally turned on and off.

The invention provides a door locking device and a dish-washing machine. The door locking device comprises a door holder assembly and a bearer assembly. The door holder assembly comprises a housing, a door holder, a first elastic component and a push rod. The door holder comprises a spring bolt at a front end, a barb part at a rear end and a door holder rod between the spring bolt and the barb part. The door holder rod is provided with a bar-type positioning hole going through the door holder rod. A first raised part and a second raised part are staggeredly arranged at two sides of the door holder rod. The housing is provided with a positioning column, which can go through the bar-type positioning hole and removablely position the door holder, and a first positioning groove, which allows the first raised part to freely go into or out of the first positioning groove. The bearer assembly comprises a bearer, a first slide block and a third elastic component. Through cooperation of the elastic components, the door holder and the push rod, fastening of the spring bolt and the first slide block is realized. The door locking device has a simple structure, a small volume and a high cost performance. The door locking device can be normally used whether the door holder is reset or not, is very convenient and has reliable performances.

The invention discloses an intelligent door lock control system and control method. The control system comprises a door lock control assembly and an intelligent key assembly; the door lock control assembly comprises an induction device for collecting triggering signals, a low-frequency door receiving-transmitting module, a high-frequency door receiving module and a door control module; the intelligent key assembly comprises a low-frequency key receiving module, an analog signal processing module, a high-frequency key transmitting module, a power supply module and a key control module; the low-frequency door receiving-transmitting module and the low-frequency key receiving module achieves judgment of a position of the intelligent key assembly through interaction of low-frequency signals; the high-frequency door receiving module and the high-frequency key transmitting module achieves information confirmation of the intelligent key assembly through high-frequency signals. According to the intelligent door lock control system and control method, the control system has the advantages of simple structure, low cost, good reliability and high security coefficient, and the control method is convenient to operate and is suitable for a wide range of promotion and application.

The invention discloses an anti-freezing gate. The anti-freezing gate comprises a dam body, a bottom shaft, a sleeve core, a rotary sleeve, an air inlet pipe and an air outlet. A telescopic cylinder for driving the dam body to overturn is arranged on the back side of the dam body. The bottom shaft is arranged at the bottom of the dam body. The bottom shaft is of a hollow structure with a through hole inside. The sleeve core is installed in the through hole of the bottom shaft. The sleeve core is of a hollow structure with a sleeve core center hole inside. A guide groove is arranged on periphery of the sleeve core and extends in the circumferential direction of the sleeve core. The guide groove communicates with the sleeve core center hole. The rotary sleeve is rotationally installed on thesleeve core. An air inlet hole communicating with the rotary sleeve center hole is formed in the periphery of the rotary sleeve. In the relative rotation process of the sleeve core and the rotary sleeve, the air inlet hole communicates with the guide groove all the time. The air inlet pipe penetrates through the bottom shaft and is connected with the air inlet hole of the rotary sleeve. The air outlet is formed in the periphery of the bottom shaft and communicates with the through hole of the bottom shaft. The anti-freezing gate can inhibit icing of a water surface in cold weather, and enables the dam body to be capable of overturning.

The invention provides a cascaded light-emitting diode light string with low power consumption, which includes a main light string and at least one sub-light string, wherein the main light string receives a carrier light-emitting signal to control a light-emitting diode module to emit light; the sub-light string is cascaded with the main light string; a signal intensifier of the sub-light string enhances the carrier light-emitting signal to drive the light-emitting diode module to emit light; and when the voltage of the carrier light-emitting signal is lower than the low level voltage, the light-emitting diode module enters a low power consumption mode.

The invention relates to a multi-output voltage-reduction type conversion device with a controllable energy release function. The multi-output voltage-reduction type conversion device comprises a main voltage-reduction type converter and at least one auxiliary voltage-reduction type converter for offering a plurality of output power supplies. The multi-output voltage-reduction type conversion device further consists of an energy release unit and an abnormal voltage signal generation unit. When the multi-output voltage-reduction type conversion device shuts down, the abnormal voltage signal generation unit can generate a control signal for controlling a switching element of the energy release unit to close, so as to release energy stored by the auxiliary voltage-reduction type converter via the energy release unit, and prevent the stored energy from returning to the main voltage-reduction type converter to result in sudden rise of a main output voltage.

The invention relates to a hinge structure, in particular to a high-temperature-resistant refractory hinge structure for lifesaving equipment. When accidental disasters such as fires happen, since the temperature of surrounding areas is caused to be high due to big fires and the like, the temperature of hinges for opening or closing a door of the lifesaving equipment is also caused to be high, the hinges are easily caused to be bonded with pins and consequently the door of the lifesaving equipment cannot be normally opened or closed. Since the hinges, pins and hinge shaft sleeves of the hinge structure are made of high-temperature-resistant refractory materials with different thermal expansion coefficients and the hinge shaft sleeves are made of high-temperature-resistant refractory materials and a door of a lifesaving capsule or a lifesaving cabinet can still be normally opened or closed under the situation. Moreover, the high-temperature-resistant refractory hinge structure for the lifesaving equipment has the advantages of simple structure and low cost.

The invention provides a V-shaped safety connecting-rod mechanism for a water guiding mechanism of a through-flow turbine. The V-shaped safety connecting-rod mechanism for the water guiding mechanism of the through-flow turbine is composed of a V-shaped safety connecting rod, bearing pressing plates, bolts, ball bearings, eccentric pins, bolts, spring washers, a detection plate, a limit switch, screws, connecting pins and check rings. When a guide vane gets stuck due to foreign matter in the closing process, the V-shaped safety connecting rod can be bent and broken when servomotor operating force borne by the V-shaped safety connecting rod reaches a certain threshold value, other guide vanes continue to be closed normally under the effect of the servomotor operating force, and thus the effects of protecting the water guiding mechanism is achieved; and the V-shaped safety connecting-rod mechanism is simple and reliable in structure, convenient to maintain, low in manufacturing cost, and suitable for water guiding mechanisms of small-size and medium-size through-flow turbines.

The invention discloses a water leakage protection device of an electric ball valve. The water leakage protection device comprises a control circuit, a ball valve rotation self-checking mechanism, analarm circuit and a power supply circuit which is used for supplying power to the whole device. The control circuit controls a motor driving circuit to drive a motor to rotate forwards or rotate reversely to be reset. The ball valve rotation self-checking mechanism is used for detecting whether the ball valve rotates normally or not and sending detected signals to the control circuit. The alarm circuit is connected with the control circuit. The control circuit judges whether an alarm is to be given by the alarm circuit or not according to the signals provided by the ball valve rotation self-checking mechanism. Once any problem occurs, a user can be reminded of timely overhauling, so that the ball valve can be normally and quickly driven by the motor to be closed under the condition that flood disasters of the ball valve did not happen for a long time but occur suddenly or outage happens. It is ensured that the ball valve can be normally closed when any flood disaster or outage happens.

The invention discloses a hard T-shaped currency cassette structure. The hard T-shaped currency cassette structure comprises a cassette body and a cassette cover, wherein the cassette cover covers the cassette body; outer sides of four side walls of the cassette body are in the shape of a step with the large top and the small bottom; inner sides of the four side walls of the cassette body correspond to the outer sides of the four side walls of the cassette body and are in the shape of a step with the large top and the small bottom; the whole body of the outside of the cassette body is T-shaped; the size of the lower part of the outside of the cassette body is matched with that of the upper part of the inside of the cassette body; and *-shaped reinforcing ribs are arranged on the outer sides of the four side walls of the cassette body and the outer side of the bottom of the cassette body. The hard T-shaped currency cassette structure has the advantages that the structural design is quite reasonable, storage is facilitated, the whole currency cassette has a T-shaped structure, height space occupied during storage is greatly saved, the *-shaped reinforcing ribs are arranged on the outer sides of the four side walls of the cassette body and the outer side of the bottom of the cassette body so that the strength of the cassette body is greatly improved, the anti-falling performance is good, an experiment proves that when falling from a position distant from the ground by 3 meters, the currency cassette can be complete and cannot be damaged no matter which part of the currency cassette is in contact with the ground at first, and the currency cassette can be normally opened and closed.

The invention relates to a screw-nut transmission device for a steel gate. The screw-nut transmission device comprises a screw; a sleeve sleeves the screw; the lower end of the screw is provided with a connecting rod; a nut is arranged in an inner cavity at the upper end of the connecting rod and sleeves the lower end of the screw; the outer circle of the upper end of the connecting rod is provided with a flange; the upper end of the flange is provided with a sealing gasket; the upper end of the sealing gasket is provided with a pressing plate and is connected with the flange through a bolt. The screw-nut transmission device is simple in structure, scum in water can be prevented from entering the screw-nut transmission device, the seizure between the screw and the nut can be avoided, and the steel gate can be normally opened and closed.

The invention discloses an anti-freezing gate air inlet mechanism which comprises a bottom shaft, a sleeve core, a rotation sleeve, an air inlet pipe and an air outlet, wherein the bottom shaft is arranged at the bottom of a dam body and in a hollow structure with a through hole inside; the sleeve core is mounted in the through hole of the bottom shaft and in a hollow structure with a sleeve corecenter hole inside; a guide groove which extends peripherally is formed in the periphery of the sleeve core and communicated with the sleeve core center hole; the rotation sleeve is rotationally mounted on the sleeve core, an air inlet which is communicated with a rotation sleeve center hole is formed in the periphery of the rotation sleeve, and in the relative movement process of the sleeve coreand the rotation sleeve, the air inlet is always communicated with the guide groove; the air inlet pipe penetrates through the bottom shaft and is connected with the air inlet of the rotation sleeve;the air outlet is formed in the periphery of the bottom shaft and communicated with the through hole of the bottom shaft and can stop the water surface from being frozen in cold weather so that the dam body can turn.

The invention discloses a passive residual heat removal system based on a water cooler. An annular water cooler which is compactly arranged around a reactor pressure vessel is adopted, reactor core residual heat is brought out, a circulating heat removal water tank is divided into a hot area and a cold area, the tops of the hot area and the cold area are in two-way communication, and a one-way flow device is arranged at the bottom of the hot area and the cold area. Therefore, cold fluid can only flow from the hot area to the cold area, water vapor can be discharged through an exhaust pipe at the top of the one-way flow device, and the natural circulation capacity between the circulating heat removal water tank and the annular water cooler is enhanced. Hot fluid in a water cooling pipe serves as an ascending section, cold fluid in an annular descending cavity serves as a descending section, natural circulating flow is formed by means of the potential difference and the density difference of the cold fluid and the hot fluid, water vapor formed in the hot area of the circulating heat removal water tank is discharged through an exhaust pipe at the top of the circulating heat removal water tank, and normal shutdown or accident shutdown of a reactor core is achieved. Residual heat in the reactor core is discharged more safely and reliably, and it is guaranteed that the temperature ofa fuel cladding, a pressure vessel and the wall face of a reactor cavity does not exceed the allowable temperature.

The invention relates to the field of automobile trunk manufacturing, in particular to an automobile trunk airbag protection device comprising an automobile trunk and an automobile silencer body. A rotating shaft is arranged in the middle of the end, close to the automobile tail, of the automobile trunk. The two sides of the rotating shaft are fixedly connected to the two side faces of the automobile trunk. An air bag is arranged on the rotating shaft; an air inlet and an air outlet are formed in two sides of the front end of the air bag; an air inlet pipe and an air outlet pipe are arranged below the automobile trunk. An exhaust valve is arranged on the air outlet pipe, a sliding sleeve is arranged below the exhaust valve, a one-way air inlet valve is arranged on the air inlet pipe, the air inlet pipe is communicated with the air outlet pipe, a connecting pipe is arranged in the middle of the air inlet pipe in the tangential direction of the air inlet direction, and the other end of the connecting pipe is fixedly connected to the outer wall of the tail end of the automobile silencer body in the tangential direction. According to the technical scheme, articles stored in the trunk of the automobile are safer, and the sunscreen problem of the automobile is solved to a certain extent.

The invention relates to ship equipment, in particular to an improvement of a sonar detection naval ship sonar port rolling sliding door. The naval ship sonar port V-shaped rolling sliding door comprises a door-sliding box, wherein a rotatable winding drum is arranged in the door-sliding box; two parallel groove-shaped tracks are arranged beside the bottom of the sliding door, and a plurality of V-shaped door plates which can move along the groove-shaped tracks are arranged between the two groove-shaped tracks; through holes are formed in the two sides of each V-shaped door plate correspondingly, and the direction of the through holes is the same as that of the V-shaped door plates moving along the groove-shaped tracks; and steel wire ropes are arranged in the through holes, one end of each steel wire rope is connected to the winding drum, and the other end of the steel wire rope is connected to the last V-shaped door plate. The sliding door has the characteristics of being simple in structure, reliable in operation and not prone to jamming.

The invention discloses a passive residual heat removal system based on an annular air cooler, which comprises at least two independent residual heat removal subsystems and a shared water supplementing tank; each residual heat removal subsystem comprises a heat exchange device consisting of a heat exchange water tank and a heat exchanger; the annular air cooler is composed of a descending cavity,an air cooling pipe, an upper annular header and a lower annular header, and the annular air cooler is provided with an inlet electric valve and an outlet electric valve; hot gas in the gas cooling pipe serves as an ascending section, cold gas in the descending cavity serves as a descending section, and natural circulation flowing heat exchange is formed between the annular gas cooler and the heatexchange device by means of the density difference and the potential difference of the cold gas and the hot gas, so that residual heat in the reactor core is safely and reliably discharged after thereactor core is shut down normally or accidentally; and the temperatures of the fuel cladding, the pressure vessel and the wall surface of the reactor chamber do not exceed the allowable temperature.

The invention relates to an anti-winding device for an itineration host swing door. The anti-winding device comprises a movable door plate (1), wherein a protective bushing (8), a nut plate (7), a pressure plate (9) and a hinge base (6) are respectively arranged at the outer side of the movable door plate (1); the two ends of the protective bushing (8) are respectively embedded between the nut plate (7) and the movable door plate (1) and between the pressure plate (9) and the movable door plate (1); a hinge is connected to the hinge base (6); a spacer bush (5) is arranged between the protective bushing (8) and the movable door plate (1); a pin roll (4) is arranged inside the spacer bush (5); and a left torsional spring (2) and a right torsional spring (3) are respectively arranged on the left and right ends of the pin roll (4). The anti-winding device for the itineration host swing door solves a problem that the spring is caught and tangled by fibre, so that the swing door is normally opened and closed, thereby avoiding a phenomenon that the fibre is caught by and tangled with the itineration host.