97 results about "Closed state" patented technology

The invention discloses a power equipment insulation fault early warning method and system based on machine learning, and relates to the technical field of fault early warning, and the method comprises the following steps: constructing a time sequence connection relation graph of discharge pulses based on a multi-point discharge time sequence set in an insulation structure; identifying a discharge closed loop based on the time sequence connection relation graph, and constructing a closed loop evolution sequence according to a time sequence; by taking the evolution sequence as a training target, constructing a machine learning prediction model for predicting the closing trend of the discharge path; and based on the prediction model, predicting a discharge path closing state of the target power equipment during future operation, and outputting an insulation fault early warning signal based on a prediction result. According to the invention, the insulation fault early warning signal is generated by identifying the closed loop and predicting the closing trend of the discharge path, so that the problem that the prior art only depends on the discharge intensity and is difficult to accurately warn the insulation fault is solved.

The invention relates to the technical field of machine tool clamping, in particular to a part clamping device applied to a numerical control machine tool. The part clamping device comprises a chuck body, a vortex driving assembly arranged in the chuck body and a plurality of chuck bodies sliding in the radial direction. The device further comprises an airflow guiding assembly and a centrifugal adjusting assembly. The airflow guiding assembly is fixed to the outer circumference of the chuck body and provided with a plurality of rotatable arc-shaped air guiding plates. The centrifugal adjusting assembly is mechanically coupled with the airflow guiding assembly and used for responding to the rotating speed of the chuck body and driving the arc-shaped air deflectors to deflect synchronously. When the chuck is static, the whole device is kept in a closed state, and external pollutants are prevented from invading; once the chuck starts to rotate for machining, the centrifugal adjusting assembly is automatically started, the airflow guiding assembly is adjusted to be in the working posture, the airflow dynamic effect brought by rotation of the chuck is utilized, an effective protective airflow barrier is formed on a key part, and therefore the active protection purposes of chip prevention, cleaning and cooling are achieved.

The embodiment of the utility model provides a feeding port opening and closing mechanism and a refined aluminum groove feeding port opening and closing device, and the mechanism comprises a positioning frame which is installed above a refined aluminum groove feeding port; the fixing plate is embedded in one side in the positioning frame and covers a part of the feeding opening, and a feeding opening is formed in the fixing plate; the opening and closing plate is hinged to the other side of the positioning frame; the driving mechanism is arranged on the side, close to the opening and closing plate, outside the positioning frame and comprises a base, a winding shaft, a traction rope and a vertical plate, the winding shaft is rotationally installed on the base, one end of the traction rope is connected with the opening and closing plate, the other end of the traction rope is wound and wound on the winding shaft, and the vertical plate is arranged between the positioning frame and the base. According to the pole changing mechanism, the opening and closing plate capable of closing or opening the feeding opening enables the pole changing mechanism to give consideration to feeding of materials of different volumes and pole changing operation, automation of opening and closing of the opening and closing plate is achieved through the driving mechanism, sealing of the feeding opening in the closed state is reliable, and the driving mechanism can be used for a long time due to heat insulation protection of the vertical plate; the utility model is suitable for the technical field of smelting furnace charging equipment.

The invention provides a hydraulic punching machine protection device, which belongs to the technical field of hydraulic punching machine protection, and comprises a rack, a lower template arranged at the lower end of the inner side of the rack, an air cylinder arranged at the upper end of the inner side of the rack, a pressing plate arranged at the output end of the air cylinder, a piston barrel arranged in a slide way, and two sides of the pressing plate slidably sleeve the outer side of the piston barrel. A piston rod is arranged in the piston cylinder, the top of the piston rod penetrates out of the rack and is fixedly connected with a cross rod, a main electromagnetic valve is arranged on the right side of the connecting port, a passage B is arranged on the right side of the standby electromagnetic valve, and a pressure sensor is further arranged on the passage F. The problems that according to an existing hydraulic punching machine protection device, air circulation is blocked through the closed state of a single electromagnetic valve, then downward movement of an air cylinder is limited, if the electromagnetic valve is clamped in the open state, even if the air cylinder moves downwards due to gravity, air in a piston barrel can still circulate through the electromagnetic valve, a protection mechanism directly fails, and operators still face safety risks are solved. And certain potential safety hazards still exist.

This invention discloses a hydraulic control system for a hydraulic breaker and related construction machinery. The system includes: an inlet oil circuit for connecting to the inlet of the excavator's hydraulic breaker; a return oil circuit for connecting to the return port of the hydraulic breaker; and a rebound pressure relief oil circuit, with its inlet and outlet ends connected to the inlet and return oil circuits, respectively. When the pressure at the inlet meets the rebound pressure relief condition, the rebound pressure relief oil circuit is in a connected state; when the pressure at the inlet does not meet the rebound pressure relief condition, the rebound pressure relief oil circuit is in a closed state. This invention, through the rebound pressure relief oil circuit, can release abnormally high pressure generated by rebound, greatly improving the load-bearing capacity of the hydraulic system and enhancing system reliability.

The present invention provides a bucket control device that can suppress malfunctions such as turbulence even when the bucket device is operated excessively in the opening or closing direction. [Solution] The bucket control device includes a controller 70 that performs at least one of over-opening suppression control and over-closing suppression control. The over-opening suppression control is a control in which the controller 70 stops paying out the rope of the opening / closing drum, which is the drum responsible for opening and closing the bucket device 10, among the first winch drum DR1 and the second winch drum DR2, when the bucket device 10 is in an over-open state, being operated in the direction to open the bucket device 10 further from a predetermined open state. The over-closing suppression control is a control in which the controller 70 stops winding up the rope of the opening / closing drum when the bucket device 10 is in an over-closed state, being operated in the direction to close the bucket device 10 further from a predetermined closed state.

The invention provides an edge rounding device of a full-automatic can making machine. Through the arrangement of the automatic opening and closing assembly, the two clamping sliding blocks of the clamping grooves corresponding to the first preset position and the second preset position can be controlled to be close to each other, and therefore the two clamping rods on the first preset position and the second preset position can be in an open state; therefore, the tank body to be hemmed can be conveniently put into the clamping groove at the second preset position, and the hemmed tank body can be conveniently taken out from the clamping groove at the first preset position. And the automatic opening and closing assembly controls the arrangement of the clamping sliding block, so that the automation degree of the edge rounding device can be greatly improved, and the can making efficiency can be improved. And meanwhile, the automatic opening and closing assembly can ensure that the two clamping rods are in a closed state in the clamping grooves not in the first preset position and the second preset position, so that the stability of the tank body conveying process is ensured, the tank body machining quality of the hemming mechanism is ensured, and the tank manufacturing efficiency is greatly improved.

The present application relates to a motion manager and an information processing method. The motion manager includes a reception unit, an instruction output unit, and a notification output unit. The reception unit receives a request to maintain a stop state of a vehicle as one of motion requests from application software. The instruction output unit outputs an instruction signal for bringing a hydraulic brake mounted on the vehicle into an open state to the hydraulic brake, on condition that the reception unit receives the request to maintain a stop. The notification output unit outputs a notification signal for notifying a driver of the vehicle from a notification device mounted on the vehicle that a driving operation of the driver is required to the notification device, when a predetermined condition decided in advance for maintaining a stop of the vehicle in a case where the hydraulic brake is in a closed state is not satisfied, upon the reception unit receiving the request to maintain a stop.

To provide a ball sorting device that can sort balls without putting unnecessary stress on them. [Solution] The ball sorting device 1 includes a rail 3 that moves the balls by the action of gravity, an opening 5 provided on the extension of the rail 3, a movable rail 6 that opens and closes the opening 5, a rotating drum 4 located opposite the opening 5, at a position where the distance between the rotating drum 4 and the movable rail 6 when the opening 5 is closed is slightly narrower than the diameter of the ball, and an air cylinder 9 that supports the movable rail 6, and the air cylinder 9 opens and closes the opening 5 by expanding and contracting when the movable rail 6 is displaced by a specific amount from the closed state of the opening 5.

Door drive (20) for one door leaf, comprising - a roller chain (24) driven by a motor (22), - a gear (26) that deflects the roller chain (24), - a locking unit (28) formed from - a drive unit (30) permanently connected to the roller chain (24), - a door connection (33) for connection with a door leaf, - a connecting element (32) extending along the roller chain (24), which is pivotably mounted at its first end via a first pivot bearing (34) on the drive unit (30) and at its second opposite end via a second pivot bearing (36) pivotably mounted on the door connection (33), wherein the locking unit (28) is arranged such that in a closed state both pivot bearings (34, 36) are arranged in an end position on the gear (26) on an equal circumferential half of the gear (26) and thereby assume an over-center position relative to each other with respect to a direction of movement of the roller chain (24) into an open position.

The utility model relates to an energy storage pulse power supply, in particular to an energy storage pulse power supply capable of fast switching, which comprises a power supply cabinet and single power supply mechanisms sequentially stacked in a cavity of the power supply cabinet from top to bottom, and a fast switching structure is arranged in the cavity at the bottom of the power supply cabinet. According to the utility model, the rapid switching structure is connected in parallel in the power supply grid, so that the rapid switching structure can respond rapidly when the grid is powered off, the use effect of continuous power supply is realized through the stacked single power supply mechanisms in the power supply cabinet, the power failure time is reduced, the response speed is improved, and the power supply of the single power supply mechanisms can be cut off when the power supply of the grid is recovered. And the fourth cable is arranged between the input mechanism and the output mechanism in a sliding adjustment mode, the closing state between the input mechanism and the output mechanism can be controlled, when the input mechanism and the output mechanism are disconnected, the disconnection mechanism and the output mechanism are conducted at the moment, and the power supply use effect is achieved.

The invention relates to the technical field of electrical engineering, in particular to a power distribution power cabinet and a using method thereof.The power distribution power cabinet comprises a base assembly, the base assembly is used for being connected with a power cabinet body so that the power cabinet body can be connected with an external power installation area through the base assembly, and the bottom of a protective film is connected with the outer edge of the base assembly; and the protective film wraps the power cabinet main body. In rainstorm weather, the unfolding height of the protective film is higher than the external water level, water is isolated outside and does not affect the power cabinet body, when the water level is high, the power cabinet body is integrally wrapped by the protective film, and an opening in the upper end of the protective film is closed through the control assembly. In this way, the protective film can wrap the power cabinet body in a closed state, and the protective film can be inflated, so that the impact force of solids in water flow on the power cabinet body is reduced.

This application provides an electric tool, including a housing, a motor, a switch for controlling the start and stop of the motor, a trigger connected to the housing, and a stop. The trigger includes an operating part, an actuating part, and a locking block, with at least a portion of the operating part extending outside the housing, and the actuating part and locking block disposed inside the housing. The stop includes a pressing part and a locking groove, with at least a portion of the pressing part extending outside the housing. The stop has a locked position and an unlocked position relative to the trigger. When the stop is in the locked position, the locking block is located in the locking groove, the actuating part is in a first position away from the switch, and the motor is in a closed state. When the stop is in the unlocked position, the locking block separates from the locking groove, the actuating part moves between a first position and a second position, and when the actuating part is in the second position cooperating with the switch, the motor is in a started state.

The present application relates to gas relay sampling, detection technical field, particularly to a kind of gas relay, including main body, transmission bin, sampling tube and first air pump, transmission bin has transmission cavity, main body is equipped with first communication port and chamber, first communication port is communicated chamber and transmission cavity, first communication port is hinged with the first valve plate capable of covering first communication port, first valve plate is equipped with first reset unit, transmission bin is equipped with first push rod, first push rod is towards first valve plate setting, sampling tube two ends are respectively detachably installed in first air pump and transmission bin, sampling tube can be communicated first air pump and transmission bin.It has beneficial effect in that: the present application is conducive to realizing the gas existing in the internal space of gas relay in closed state can be sampled, detection function, for staff in the safe maintenance work of transformer carries out and brings convenience.

This bucket control device is for a construction machine (100) comprising: a first winch drum (DR1) that pays out and winds up a first winch rope (R1); a second winch drum (DR2) that pays out and winds up a second winch rope (R2); and a bucket device (10) that is connected to the first winch rope (R1) and the second winch rope (R2) and is capable of opening / closing and raising / lowering in response to the rotation of the first winch drum (DR1) and the rotation of the second winch drum (DR2). The bucket control device comprises a controller (70) that determines the open / closed state of the bucket device (10) and notifies an operator of the determined open / closed state of the bucket device (10).

The utility model relates to a vacuum circuit breaker and a transmission mechanism thereof. The vacuum circuit breaker comprises an operating mechanism and a switch unit which is controlled by the operating mechanism to open and close. The transmission mechanism is suitable for being connected between the operation mechanism and the switch unit. The transmission mechanism comprises a first main shaft which can rotate around the central axis of the first main shaft and is suitable for being operably connected to the operation mechanism; the second main shaft and the first main shaft are arranged in parallel and at an interval; the connecting rod mechanism is connected between the first main shaft and the second main shaft and connected between the second main shaft and the switch unit, and the connecting rod mechanism is configured to be located at a dead point position when the switch unit is in a closed state; and the switch unit can be driven by the operating mechanism to cross the dead point position so as to allow the switch unit to be switched off.

This invention discloses a range hood, including a smoke collection hood with a first air inlet and a second air inlet arranged left and right. The range hood also includes a first smoke guide plate and a second smoke guide plate. The first and second smoke guide plates can be in at least two states: a closed state, in which the first smoke guide plate closes the first air inlet and the second smoke guide plate closes the second air inlet, with the ends of the two smoke guide plates that are close to each other being the first ends and the ends that are far apart being the second ends, and the first ends are constrained within the smoke collection hood; and an open state, in which the first and second smoke guide plates are closed to open the first and second air inlets, with each of the first and second smoke guide plates at least partially located below the smoke collection hood, and the second ends located below the smoke collection hood.

A bottom shaft driving hydraulic gate comprises a gate plate and a bottom shaft arranged at the lower end of the gate plate, the gate plate is rotationally arranged on a foundation supporting structure on the ground through the bottom shaft, the lower end of the gate plate or the bottom shaft is connected with a swing arm used for driving the gate plate to rotate, and a hydraulic oil cylinder is arranged below the gate plate. The driving end of the hydraulic oil cylinder is connected with a driving block capable of horizontally sliding on a sliding supporting structure below the hydraulic oil cylinder, and the driving block can be in sliding contact with the swing arm extending downwards in the horizontal sliding process and pushes the swing arm to rotate the gate plate from a falling open state to a lifting closed state under the driving force of the hydraulic oil cylinder; the driving block can be separated from the swing arm after the gate plate descends to the open state or is blocked by an obstacle and stops descending, the acting force of continuous action of the hydraulic oil cylinder cannot be applied to the swing arm and the gate plate, and therefore equipment damage is avoided.

The invention relates to the technical field of high-voltage switches, and discloses a high-voltage vacuum circuit breaker which comprises a barrel, a crank arm box is mounted on the upper side of the barrel, a spring operating mechanism is arranged on the outer side of the crank arm box, and a mechanism pull rod in the spring operating mechanism horizontally extends into the crank arm box and is hinged to the first end of an outer crank arm. The second end of the outer crank arm and the first end of the inner crank arm are fixedly connected with a transmission shaft together. The second end of the inner crank arm is hinged to the upper end of a connecting rod. The upper side of the cylinder is further connected with a sealing guide cylinder, a piston is installed in the sealing guide cylinder, and the lower end of the connecting rod extends into the sealing guide cylinder and is hinged to the upper end of the piston. And when the vacuum circuit breaker is in a closed state and the moving contact rod completely travels from a just closed point to an over travel stage, the included angle between the connecting rod and the inner crank arm approaches 180 degrees, and the connecting rod is in a far dead center position. The internal self-closing force of the high-voltage-class vacuum environment-friendly circuit breaker can be reduced, the opening impact can be reduced, the mechanism operation work can be reduced, and the stability of opening and closing operation and the reliability of equipment can be guaranteed.

This application discloses an inverter and its control method, belonging to the field of inverter technology. The inverter includes: a housing, with a control unit disposed inside the housing; a ventilation structure including: a ventilation assembly disposed in the housing, the ventilation assembly comprising a body and a cover; the body having an exhaust port, the cover covering the exhaust port; and a power assembly disposed in the housing and connected to the cover; the power assembly is electrically connected to the control unit to drive the cover to open or close the exhaust port under the control of the control unit. Thus, when the inverter needs ventilation, the exhaust port is opened, putting the ventilation structure in an open state; when ventilation is not required, the exhaust port is closed, putting the ventilation structure in a closed state, preventing moisture and polluting gases from entering the inverter.

The application provides a compressor and an air conditioner with the same, and relates to the technical field of air conditioners. The compressor comprises a cylinder assembly, the cylinder assembly comprising at least two cylinders, the cylinder assembly being provided with a control chamber and at least two enthalpy-increasing channels, one of the enthalpy-increasing channels being arranged in correspondence with one working cavity, and two adjacent enthalpy-increasing channels being arranged in communication with the control chamber, and a total enthalpy-increasing opening in communication with the control chamber being arranged on the side wall of the control chamber; and a control valve is movably arranged in the control chamber, so that the control valve has a working position in which one of the two adjacent enthalpy-increasing channels is in communication with the total enthalpy-increasing opening for enthalpy-increasing operation, and the other enthalpy-increasing channel is in a closed state. The technical scheme of the application solves the problem that the compression chamber of one cylinder is in communication with the suction chamber of another cylinder when the two cylinders are provided with the enthalpy-increasing channels at the same time, improves the enthalpy-increasing effect of the compressor, and improves the performance of the compressor.

Liquid discharge apparatus, control method thereof, and liquid transfer apparatus, control method thereof. The liquid discharge apparatus includes a tube configured to establish communication of a flow path by connecting a discharge portion and a container, the discharge portion configured to discharge a liquid to a discharge target medium, the container configured to accommodate the liquid to be supplied to the discharge portion; a valve mechanism configured to switch between a closed state of pressurizing and occluding the tube and an open state of opening the tube according to a rotational position of a cam member configured to rotate by a drive source; and a detection unit configured to detect whether the valve mechanism is in the closed state or in the open state. The valve mechanism includes a detection target portion. The detection unit detects whether the valve mechanism is in the closed state or in the open state by detecting the detection target portion.

The utility model provides an electric tool which comprises a machine shell, a driving mechanism, a motor switch, a shaft lock mechanism and an operation piece, and the shaft lock mechanism comprises a first clutch piece and a second clutch piece which are matched with each other; the shaft lock mechanism is configured in the mode that when the first clutch piece and the second clutch piece are clamped, the output shaft cannot rotate relative to the machine shell. When the first clutch piece is separated from the second clutch piece, the output shaft can rotate relative to the machine shell. The operating part is configured to push the first clutch part to be separated from the second clutch part when the operating part moves towards the first direction and moves by a first stroke, and the motor switch is in a closed state when the operating part moves by a second stroke larger than the first stroke. According to the electric tool, the operating piece is matched with the shaft lock mechanism and the motor switch in structure, so that the starting action of the motor switch is later than the clutch state switching of the shaft lock mechanism, that is, starting is conducted after unlocking, motor stalling is avoided, the stalling risk during starting is reduced, and the service life of the electric tool is prolonged.

This utility model provides a central control device, comprising: a housing and a control component. The housing has a mounting cavity, a flow guide portion located within the mounting cavity, and a drain hole penetrating the inside and outside of the mounting cavity. The control component is installed within the mounting cavity. The flow guide portion has a flow inlet end and a flow outlet end. The drain hole is located at or below the flow outlet end. Along the extension direction from the flow inlet end to the flow outlet end, the flow guide height of the flow guide portion gradually decreases. A vibrating element is installed on the housing and located within the mounting cavity. The vibrating element has an open state and a closed state. When the vibrating element is in the open state, it is vibrating. The technical solution provided by this utility model can solve the technical problem in the prior art where residual moisture in central control devices easily affects the performance and lifespan of internal components.

In the present invention, when the main switch of a vehicle turns off (t3), an ECU (11) enters a post-run state and executes predetermined post-processing which includes an opening control of a high-power relay (21). If the main switch turns on again before the high-power relay (21) enters an open state (t11), the ECU (11) restarts. At this time, a control parameter related to the control of an internal combustion engine (2) or a self-diagnosis function is reset without resetting a high-power relay-related parameter. The high-power relay (21) which was in a closed state at the point in time (t11) continues to be in a closed state. A sudden interruption in the high-power relay (21) accompanying a parameter reset is avoided.

An excavator or other working machine includes a tiltable bucket operable by a hydraulic actuator, controlled by a bucket control valve responsive to control signals including a bucket swing control signal which causes the bucket to be repeatedly moved in a swing operation in a frame and dump direction to swing debris from the bucket. The actuator is powered by pressure from a hydraulic pump, and the control system includes an unloading valve to release pressure from a supply line to unload the pump when power is not required. The control system is arranged to maintain a constant pressure signal in a load sense line to constantly maintain the unloading valve in a closed state for the duration of the bucket swing operation. This can be achieved by pressurising the actuator of a quick hitch to lock the bucket to the machine.

The utility model provides a power supply control system with double power supplies. The power supply control system comprises an execution switch unit, an execution motor, a motor switch unit, a tripping unit and an alarm switch unit, the execution switch unit is used for controlling connection and disconnection of lines between the first power supply and the load and between the second power supply and the load under the driving of the execution motor; the motor switch unit is electrically connected with the first power supply and the second power supply through the alarm switch unit, and is used for controlling the execution motor to carry out corresponding driving control according to the accessed power supply, and is disconnected after the execution motor completes the corresponding driving control; and the tripping unit is used for opening the execution switch unit and disconnecting the alarm switch unit when the power supply fails. When the tripping unit is tripped due to a power supply fault, the alarm switch unit is switched off synchronously, and at the moment, even if the motor switch unit is reset to a closed state, the fault power supply cannot be connected to the execution motor again, so that the execution motor cannot be powered on again based on the fault power supply, and the electrical risk of the execution motor is reduced.

The utility model relates to the technical field of grabbing hooks, in particular to an automatic grabbing and releasing mechanism which comprises an objective table, a top table located above the objective table, a lifting rod capable of ascending and descending in the top table, a self-retracting and releasing grabbing mechanism installed on the bottom side of the lifting rod, and a protruding T-shaped grabbing cap arranged in the middle of the objective table. When the self-retracting and releasing grabbing mechanism moves downwards and gets close, the clamping opening is closed to grab the T-shaped grabbing cap, and when the lifting rod is lifted to drive the objective table to move upwards to make contact with the top wall of the top table, the self-retracting and releasing grabbing mechanism is pushed to release the clamping opening from the closed state to release the T-shaped grabbing cap. And the contact time of personnel and dangerous objects in the whole process is reduced.

The application relates to the field of new-generation information technology, and discloses a vehicle access information management method and system to improve performance. The method comprises the following steps: an edge server creates an A-gate group and sets a unified safety interval threshold between any two exit gates in the group, and then establishes a jurisdiction relationship between the A-gate group and at least two exit gates of a merging section; wherein, the gate group attached to any exit gate is unique, and adjacent exit gates with a line distance less than the safety threshold and with a line-of-sight obstacle are included in the same gate group; after receiving a gate opening request of a gate a1 facing a closed state in the A-gate group, it is judged whether there is a conflicting lateral vehicle on the lateral exit of other gates in the group, and if there is, a delay waiting process is performed on the exit gate opened later to make the time interval between the gate opening instruction of the exit gate opened later and the last gate closing instruction of other exit gates in the gate group greater than or equal to the safety interval threshold.