627results about How to "Realize automatic reset" patented technology

A switching-over circuit of engine redundant electric control system consists of master-backup system control circuit separately set on two circuit board with the same function. It is featured as forming said each control circuit by CPU processor, information exchange circuit, CPU interface circuit, master-backup control logic circuit and state processing logic circuit; carrying out real time monitor on master-backup state by utilizing digital signal between master-backup circuit board and generating master-backup control command according to monitored information. Its controlling method is also disclosed.

The invention discloses a novel electric shock prevention power supply device which comprises an inserting portion and a socket portion arranged at the lower end of the inserting portion. A connection rod, a power connection piece and a wire are arranged in the inserting portion, inclined inserting rods extending downwards are fixedly arranged on two sides of the connection rod, slide frames are arranged in the upper end of the pocket portion in a left-right symmetrical and upwards-extending mode, a limit block is arranged at the upper end of each slide frame, a pressing-down groove is formed in each slide frame, a first pressure spring is arranged on the bottom surface of each pressing-down groove, a conducting plate is in slide fit connection between the two pressing-down grooves, the upwards-extending ends of the first pressure springs are fixedly connected with and in pressing-down match with the bottom surface of the conducting plate, inserting holes are formed in the socket portion corresponding to the lower ends of the inclined inserting rods, slide grooves are arranged in the socket portion and between the inserting holes in a left-right symmetrical mode, a stopping plate fixedly connected with the socket portion is arranged between the slide grooves, a penetrating hole which penetrates through a top wall of the socket portion and is communicated with an area between the slide frames is formed in the upper end of each slide groove, and conducting pins are arranged in the penetrating holes. The novel electric shock prevention power supply device disclosed by the invention has a simple structure, can be powered on automatically in insertion, can be automatically powered off when being pulled out and has higher power supply safety and lower use cost.

The invention provides a shape memory alloy (SMA) group rolling rod type large load releasing mechanism. A segmented nut of the mechanism is firmly hooped by a hooping cylinder through rolling rods, simultaneously the upper end face and the lower end face of the segmented nut are respectively matched with an end cover and a separating ejector block, so that the segmented nut is a total nut and cannot move vertically. Groove are arranged on the segmented nut, so that when separation is needed, and the hooping cylinder moves downwards to drive the rolling rods to roll downwards and properly enter the grooves of the segmented nut when moving to a certain position, so that the segmented nut can obtain radial displacement. When releasing is finished, the hooping cylinder moves upwards under the effect of an SMA reset spring and simultaneously push the rolling rods out from the grooves, and the segmented nut draws close toward the inside to form an integral thread, so that repeated using function of the mechanism can be achieved, the segmented nut is fit with the separating ejector block through a conical surface, and the separating ejector block is matched with the hooping cylinder through two end faces. The shape memory alloy (SMA) group rolling rod type large load releasing mechanism is strong in shock resistance, releases large load and has the redundancy design and high reliability.

The invention discloses a vertical ventilating shaft explosion door capable of automatically resetting after blast release and pressure relief, which belongs to the technical field of ventilating safety of coal mines and solves the problems that an explosion door fast depressurizes and releases blast air pressure and safely, automatically resets to close the mouth of a well and protects a ventilator device to be safely operated and normally ventilated when downhole blast impacts the mouth of a vertical ventilating shaft. A template pressure relief device and a skylight for a pilot pressure relief device capable of automatically resetting and closing are arranged on the top and a shell surface of the explosion door respectively; the explosion door is provided with four groups of hydraulic cylinders which synchronously move in two directions and are used for pulling and pushing the explosion door to automatically ascend and descend along the cylinders (tracks) and a hydraulic control and electric control system; the explosion door is also provided with a control device for operating a door body lifting hydraulic cylinder in a machine room and a pump station so as to realize natural ventilation and inverted ventilation operation; and a magnet steel sucking skylight is locked to realize inverted ventilation without manual operation. A composite technical system for operation and lifting control of the explosion door is safe and reliable, remote control operation is convenient and rapid, a ventilator is safely operated and ventilated during an accident, and an explosion-proof effect of the explosion door is achieved.

The invention relates to a double slider coupling for drive test of an automobile rear axle or final drive assembly. The double slider coupling comprises a first half coupling, a second half coupling and a middle double slider between the first half coupling and the second half coupling; the first half coupling, the middle double slider and the second half coupling are all provided with a centre hole; a drive shaft connected with a drive device is inserted into the centre hole of the first half coupling; the first half coupling passes through the centre hole of the middle double slider and then is inserted into the centre hole of the second half coupling; and the inner diameter of the centre hole of the second half coupling is greater than the outer diameter of the end of the first half coupling inserted into the centre hole of the second half coupling so as to compensate for the coaxiality error between the drive shaft and the final drive flange. The double slider coupling has the advantages that: as the double slider coupling can be connected to the drive shaft in a single-shaft supporting way, automatic butt joint between the drive shaft and the flange can be realized; and the working efficiency is improved considerably.

The invention relates to a rotatable lift car toe guard, solving the problem that the retractable toe guard in the prior art is easy to be damaged upon collision with the ground and possibly cannot be returned in place. The lift car toe guard comprises an upper toe guard piece and a lower toe guard piece articulated to each other, wherein a stop rod mechanism rotating along with the downward movement of the lift is arranged on the upper toe guard piece; a cam coaxially connected with the stop rod mechanism is further arranged on the upper toe guard piece; and a link mechanism capable of pulling the lower toe guard piece for turnover along with the rotation of the cam is arranged on the cam. The design of the stop rod mechanism, the cam and the link mechanism of the toe guard provided by the invention realizes transformation from rotation to linear movement so that the toe guard rotates at a certain angle; in this way, the demand for the depth of the foundation pit is reduced; the toe guard does not need to collide with the ground surface of the foundation pit; and damage on the toe guard and accidental harm on people are avoided.

The invention discloses a pressure cooker and a pressure adjusting device thereof. The pressure adjusting device is arranged between a mounting seat and a cooker cover of the pressure cooker and comprises an air release valve, a movable block, an operation key, a floater and an adjusting component. The air release valve comprises a valve body and a valve core, and the valve core is connected between the cooker cover and the mounting seat; the movable block is arranged below the valve body in a vertically movable manner; the operation key with the top ends penetrating through the mounting seat is arranged on the cooker cover in a vertically movable manner; the floater is arranged on the cooker cover in a vertically floatable manner; the adjusting component is arranged between the operation key and the movable block and drives the movable block to jack up the valve body when the operation key is touched. The pressure adjusting device is capable of adjusting the pressure in a cooker body to meet various food cooking requirements, high in reliability, simple in structure and low in cost.

The invention discloses a critical-patient transfer bed with a carrying function and an application method thereof and belongs to the field of medical equipment. The critical-patient transfer bed hasthe advantages that the critical-patient transfer bed is provided with a bed board which can ascend and descend and extend outwardly, sheet clamping mechanisms which can ascend and descend and extendoutwardly are arranged at the head and the tail of the transfer bed, the sheet clamping mechanism at one end has a turning function, a patient can be stably transferred between the transfer bed and ahospital bed by the coordination of the two sheet clamping mechanisms and the telescoping bed board, simple and reliable patient carrying is achieved, high carrying safety is achieved, the secondary damage problem during patient carrying is solved, and high carrying efficiency is achieved; in addition, first and second guard boards are arranged on two sides of an upper bed frame and can be horizontally spread to form expansion bed surfaces, the critical-patient transfer bed can be used as the hospital bed which can be used by the patient for a long time, and the critical-patient transfer bed is simple in structure, convenient to use, flexible to operate, low in manufacturing cost, good in market popularization value and the like.

The invention relates to the field of medical beds, in particular to a protection bed with lifting-type bedrails. The protection bed comprises a bed board and two bedside boards, the two bedside boards are located at the two ends of the bed board respectively, and protection areas are arranged at the two sides of the bed board; the bedrails are vertically and slidingly connected to the protectionareas, lifting mechanisms which make the bedrails vertically move are arranged at the bottoms of the bedrails, and the bed board is further provided with a middle sensing area located in the middle ofthe bed board and edge sensing areas located at the two sides of the bed board; the edge sensing areas are located between the protection areas and the middle sensing areas and used for controlling ascending of the lifting mechanisms, and the middle sensing area is used for controlling descending of the lifting mechanisms. According to the scheme, the situation is avoided that when moving to theedge of the bed board, children fall down from the bed board. The safety performance is improved.

The invention provides an automatic cleaning mechanism of an outdoor sun-tracking photovoltaic power generation device. The automatic cleaning mechanism comprises a rotationally arranged photovoltaicpower generation device for tracking the sun, guide rails, a cleaning roller moving along the guide rails, limiting components and spray components, wherein the guide rails are symmetrically arrangedat two sides of the photovoltaic power generation device; the limiting components are symmetrically arranged at the tops of the guide rails; each limiting component comprises a limiting unit and a lever unit; and the spray components are symmetrically arranged. The cleaning roller falls off by using the gravity to finish the dust removal work on a photovoltaic panel, the photovoltaic power generation device is used for tracking the sun to carry out rotary oscillation, and the cleaning roller is brought back to the initial position again and is repeatedly used, so that the cleaning problem of the rotary tracking photovoltaic power generation device is solved, automatic resetting of the cleaning roller is achieved, the energy is saved and the mechanism is simplified.

The invention relates to a transformation robot as well as a transformation method and a combined-steering-engine automatic reset method thereof. The transformation robot comprises a robot-body main body (1), standing components (3) and supporting components (4), wherein the standing components (3) are arranged at the lower part of the robot-body main body (1); the supporting components (4) are arranged on two sides of the upper part of the robot-body main body (1); the standing components (3) and the supporting components (4) are rotationally connected with the robot-body main body (1) respectively; the transformation robot also comprises a work executing component; the work executing component is arranged at the back of the robot-body main body (1). Compared with the prior art, the transformation robot has the beneficial effects that the transformation of an engineering vehicle is realized through the work executing component; the supporting components can be enabled to support the robot-body main body during transformation through the supporting components; the driving power when the standing components are used for carrying out standing is reduced by a wide margin; the stress balance during the transformation is ensured; the quick transformation is realized, and meanwhile, the transformation robot can be also used for realizing the automatic reset of a combined steering engine of the transformation robot.

The invention discloses a DC electrical docking device capable of automatically pulling-in and disconnecting, comprising a floating module and a fixed module, wherein, the floating module consists ofa wiring post A, a wiring post B, a plug A, a plug B, a traction conductor A, a traction conductor B, a return spring A, a return spring B, a floating butt joint, a floating contact point A, a floating contact point B, a permanent magnet A and a permanent magnet B; and the fixed module consists of a permanent magnet C, a permanent magnet D, a fixed contact point A, a fixed contact point B and a fixed butt joint. The return spring A and the traction conductor A are communicated with the floating contact point A and the wiring post A; and the return spring B and the traction conductor B are communicated with the floating contact point B and the wiring post B. When the floating module is close to the fixed module, the permanent magnet A is connected with the permanent magnet C in an actuatingmanner, and the floating contact point B is connected with the permanent magnet D in an actuating manner; and when the floating module is separated from the fixed module, the two traction conductorspull away the two floating contact points to disconnect circuits with each other. The device can keep conduction in the case of vacillation and dislocation of the two plug bodies, and is particularlyapplicable to the fields of remote circuit conduction, field remote control operation and the like.

The invention relates to a cutting device, in particular to an automatic pushing device for toilet paper cutting. The technical problem of the invention is to provide the automatic pushing device fortoilet paper cutting, which can control the cutting length of toilet paper and can automatically push the toilet paper for cutting. The embodiment of the technology is as follows: the automatic pushing device for toilet paper cutting comprises a rack, sliding rods, sliding sleeves, supporting plates, a placement plate and the like, wherein the sliding rods are fixedly arranged at the two sides ofthe rack; the sliding sleeves are arranged at the rear sides and middles of the sliding rods in a sliding manner; the supporting plates are fixedly arranged on the upper ends of the sliding sleeves; and the placement plate is fixedly arranged on the upper ends of the supporting plates. A transmission mechanism is driven to rotate by a driving mechanism, so that the device can automatically and indirectly push the toilet paper for cutting, thus, the cutting of a manual pushing device is replaced by the automatic pushing cutting of the device, and the work efficiency is improved; and a cutting mechanism can be used for achieving the fixed-length cutting of the toilet paper.

The invention discloses a parking space management system and method. The system comprises a parking space lock and a parking space controller, the parking space lock comprises a lock box body, a parking space retaining plate, a parking space retaining plate linkage mechanism and a parking space retaining plate locking mechanism, the parking space controller comprises a controller box, a control panel, a buzzer and a communication module, the control panel and the buzzer are arranged in the controller box, a display screen, an indicator lamp and a camera are arranged on the side face of the controller box, the communication module is arranged in the controller box and connected with the control panel, and the control panel is connected with a background parking lot management system through the communication module. The parking space management system uses the parking space lock and the parking space controller as core devices for parking space management and combined with the background parking lot management system for realizing management of a parking space, on-site management can be realized directly through the parking space controller, online booking and remote management can be realized by combining the parking space management system with the background parking lot management system, and the parking space management system can be used for parking space management of parking lots and private parking spaces.

The invention particularly relates to a crystal drawing device. The crystal drawing device comprises a crystal lifting mechanism, a lifting platform and a weighing sensor mounted on the lifting platform, and further comprises a crystal rotating mechanism and a weighing hanging basket which are both of axisymmetric structures; the weighing hanging basket comprises a hanging basket upper flat plate and a hanging basket connecting rod with one end connected with the hanging basket upper flat plate; the hanging basket upper flat plate is connected with the hanging basket connecting rod then to form an axisymmetric structure; the hanging basket upper flat plate is mounted on a weighing plane of the weighing sensor, and the other end of the hanging basket connecting rod penetrates downwards through a through hole on the lifting platform to be connected with the crystal rotating mechanism; the geometric symmetric axes of the weighing hanging basket and the crystal rotating mechanism are coaxially connected and fall on the weighing axis of the weighing sensor. In the crystal drawing device, the weight of the crystal rotating mechanism is borne by the weighing hanging basket, the weighing hanging basket and the crystal rotating mechanism are jointly connected to form a preload to act on the weighing sensor, the gravity of the preload falls on the weighing axis of the weighing sensor, thereby avoiding the influence of the load eccentricity on weighing results.

The invention discloses an automatic rice selling machine, comprising a cabinet, a door body, and a control system. The door body is provided with a shipment port. The cabinet is internally provided with a storage rice classification warehouse partition device. The inner side of the door body is provided with a rice taking device and a bag outlet device. The cabinet is also internally provided with a leaked rice recovery device. The shipment port position of the door body is provided with an anti-pinch electric door. The rice selling machine is novel in structure and reasonable in design. Through cooperation of the rice storage device and a rice receiving bin, classification is realized, so as to provide more choices for consumers. The arrangement of a rotating cylinder realizes quantitative selling. The arrangement of an inductor is used to detect whether rice exists. The arrangement of a guiding rail provides convenience for changing a rice storage bucket. The arrangement of a rice taking device can realize rapid and safe rice taking. The arrangement of a spring realizes automatic reset of a pushing box. The arrangement of a bag taking device realizes an automatic bag outlet function. The machine provides convenience for buying behavior of a consumer. The arrangement of the electric door can effectively prevent occurrence of hand clamping.

The invention relates to an automatic cleaning device of a measuring instrument. The device comprises a base and a measuring plate, a first support column and a second support column are fixedly connected to the bottom of the measuring plate, a first air bag is arranged between the first support column and the second support column which are sleeved with support springs, and the support springs are located between the base and the measuring plate; a stand column is fixedly connected to the side of the measuring plate, a first support platform and a second support platform are fixedly connectedto the two sides of the stand column respectively, a second air bag is fixedly connected to the first support platform, a gas-guide tube is communicated between the second air bag and the first air bag, the second support platform is provided with a disinfection tank and a liquid storage tank, a piston is slidably connected into the disinfection box, the piston divides the interior of the liquidstorage tank into a liquid chamber and a gas chamber, a piston rod is fixedly connected to the piston, the free end of the piston rod is movably connected to the second air bag, a sprinkler pipe is arranged at the bottom of the liquid chamber, a gas ejector pipe is communicated with the bottom of the gas chamber, and a U-shaped pipe is communicated between the liquid chamber and the liquid storagetank. By means of the device, the measuring instrument can be cleaned.

The invention discloses a locking mechanism with a self-return function. The locking mechanism with the self-return function comprises a motor, a worm, a worm gear, a pawl, a lock-tongue, a pawl torsional spring, a lock-tongue torsional spring, a lock-tongue rivet, a pawl rivet and a rotating shaft; the lock-tongue is rotatably installed on the lock-tongue rivet and is provided with the lock-tongue torsional spring on the lock-tongue rivet in a sleeving mode, and the side face of the lock-tongue is provided with a limiting groove; the pawl is rotatably installed on the pawl rivet and is provided with the pawl torsional spring on the pawl rivet in a sleeving mode, the pawl rivet is located at the first end of the pawl, the side face of the pawl is provided with buckles matched with the limiting groove, the buckles and the limiting groove are oppositely arranged, and the second end of the pawl is provided with protruding blocks; the worm is rotatably installed on the rotating shaft, and buffering blocks matched with the protruding blocks are arranged on the worm gear; the worm is arranged on an output shaft of the motor, and the worm is meshed with the worm gear. By means of the locking mechanism with the self-return function, the number of spare parts is reduced, and the production cost is effectively reduced.

The invention discloses a bookbinding machine with an improved locking mechanism. The bookbinding machine with the improved locking mechanism is characterized in that an unlocking rod is arranged on a rack, a drilling mechanism is provided with a trigger mechanism, the lower end of the unlocking rod abuts against a locking block, a trigger part for unlocking an upper pressing head and making the upper pressing head reset upwards is arranged on the unlocking rod, and after pressing rivet operation is finished, in the resetting process of the drilling mechanism, the trigger mechanism of the drilling mechanism triggers the trigger part, the unlocking rod drives the locking block to release the locking rod, and therefore the locking state of the locking block is relieved and the upper pressing head resets. The bookbinding machine is simple in structure, ingenious in design, few in parts, low in cost, stable and reliable in motion, and free of incorrect operation, automatic locking, automatic unlocking and automatic resetting of the upper pressing head are achieved, the bookbinding machine does not need to be driven by an independent motor, a complex linkage mechanism is not needed, and users do not need to manually operate the bookbinding machine.

The invention discloses a gift box coded lock and relates to the technical field of locksets. The gift box coded lock comprises a press button, a lock catch, a locking block and a password wheel mechanism. The press button is further provided with a locking groove, and the locking block is further provided with a locking portion capable of being inserted in the locking groove. When the coded lock is unlocked, the password wheel mechanism relieves limitation over the movement of the locking block so that the locking block can relieve limitation over the movement of the press button, the press button is pressed down to enable a latch hook to be separated from the lock catch, a box body is in an openable state, the locking portion is inserted in the locking groove while the latch hook is separated from the lock catch, the press button is in a locking state, in this way, before the box body is opened, the press button cannot reset automatically even if the press button is released, it can be effectively prevented that the latch hook and the lock catch are locked again, the box body can be opened conveniently, after the box body is opened, the locking portion is pulled out of the locking groove, and the press button can reset automatically.

The invention discloses an automatic return valve, which comprises a fixed unit, a water distribution body, a stop mechanism, a transmission shaft and a clutch mechanism. The fixed unit is provided with an inlet waterway and at least two outlet waterways. The water distribution body is rotatably installed in the fixed unit. The outlet waterways are switched and are communicated with the inlet waterway through the relative rotation between the water distribution body and the fixed unit. An external ratchet is arranged on the external rotary surface of the water distribution body. The stop mechanism is connected with the fixed unit and acts on the external ratchet. The transmission shaft is rotatably installed on the fixed unit and is provided with a control end and a transmission end, wherein the control end is arranged outside the fixed unit and the transmission end is arranged in the fixed unit. The clutch mechanism is connected between the transmission end of the transmission shaft and the internal rotary surface of the water distribution body. A return elastic body is connected between the transmission shaft and the fixed unit. The invention has the advantages that the automatic return is realized, the transmission shaft is at the same position no matter which state a shower head is in, and thereby the user operation is facilitated.

The invention relates to a pressure cooker, a pot cover assembly thereof and a reset mechanism for an exhaust valve. The rest mechanism comprises a lever, a rotating part, a first reset part, a pull rod and a locking part. The pull rod can move in the radial direction of a pot cover body, an abutting part is arranged at one end of the lever and used for abutting against a pot tooth of a pot body,and the other end of the pull rod is used for driving the locking part to move; when the abutting part abuts against the pot tooth of the pot body, the pull rod drives the locking part to move so as to make the locking part remove locking limit of the rotating part. When the limit role of the locking part does not exist, the rotating part can rotate to the reset position from the exhaust positionunder the drive of the firer reset part, and correspondingly, the exhaust valve is reset to be a sealing state.

The invention discloses a centrifugal liquid collection device based on an eccentric wheel. The device comprises a support, a hydraulic tank, a liquid collection pipe, an eccentric mechanism, telescopic mechanisms, movable clamping boards and a connection frame. The device is exquisite in design and indigenous in structure. The liquid collection pipe can move up and down. Additionally, the overallprocess is smooth. The liquid collection pipe can be reset automatically.

The invention discloses an optimal allocation method of power shortage after fault of a multi-DC sending-end grid. The method comprises the following steps: reading grid related data and carrying outanalysis and processing on the data; calculating power variation of each provincial-level control area, and judging and positioning a fault provincial-level control area; calculating actual power shortage amount of the whole grid obtained after a plurality of control measures; calculating power shortage allocation amount of each provincial-level control area and carrying out safety back calibration; if violating security constraints, calculating shortage power allocation correction of each provincial-level control area through regional equivalent power generation sensitivity; and issuing the shortage power allocation correction to each provincial-level control area in a forwarding and d remote regulating manner, and resetting to zero. The method realizes large power shortage multi-region coordinative and optimal allocation after fault and ensures quick recovery of frequency and safe and efficient operation of the multi-DC sending-end grid after disturbance by considering multi-stage scheduling and multi-class control measure action situations of the multi-DC sending-end grid after fault.

The invention provides an intermittent material splashing device, which includes a frame, a hopper, a silo, a buffer spring, a reset mechanism and a feeding pipe. Spring connection, when the grain in the silo is increasing, the silo will continue to descend along the vertical sliding part of the chute. The grains in the machine are splashed on the vibrating screen to realize intermittent feeding, which replaces the means of induction device to control intermittent feeding.

The invention discloses an automatic reset device. The automatic reset device comprises an on / off signal detection circuit, a time-delay circuit and a reset signal output circuit, wherein the on / off signal detection circuit is used for detecting an on signal and an off signal of electronic equipment; the time-delay circuit is connected with the on / off signal detection circuit and is used for delaying time with fixed length when the on / off signal detection circuit detects the off signal and then sending out a notification signal; the reset signal output circuit is connected with the time-delay circuit and is used for outputting a reset signal to a system chip of the electronic equipment after receiving the notification signal. The automatic reset device provided by the invention can solve the problem that the existing electronic products can reset the runaway program only by manually pressing down a mechanical reset press button.

The invention discloses a friction pendulous cultural relic shock isolation device adjustable in damping and belongs to the technical field of shock absorption and shock isolation. The device comprises a bottom plate, a top plate, concave disks, universal balls and a cross damping mechanism. The concave disks and the universal balls are fixed to the opposite surfaces of the bottom plate and the top plate, and the concave disks and the universal balls form contact fit to provide supporting force; the cross damping mechanism is installed between the bottom plate and the top plate, and the bottomplate and the top plate are connected together through the cross damping mechanism; and the cross damping mechanism decomposes the relative motion in any horizontal direction between the bottom plateand the top plate into two motions in the orthogonal directions of the cross damping mechanism and applies damping. According to the friction pendulous cultural relic shock isolation device adjustable in damping, adjustment of the damping volume can be achieved while the integrity of the shock isolation device is ensured, and the shock isolation demands in different occasions can be met.