23results about How to "Increase the opening speed" patented technology

The invention discloses an electric intelligent monitoring drop-out fuse, and relates to the technical field of protection fuses. The electric intelligent monitoring drop-out fuse comprises an insulating pillar and an isolation arc protection device arranged at the top end of the insulating pillar, and further comprises a fuse carrier support installed at the bottom end of the insulating pillar; the fuse carrier is arranged on one side of the insulating support, and the bottom end of the fuse carrier is rotationally connected with the bottom end of the insulating support through a fuse carrier support; the push-pull type driving mechanism is mounted and sleeved on the insulating support column, and drives the fuse carrier to swing in a push-pull manner; the push-pull type driving mechanism is driven by an impact type driving assembly to slide. The opening and closing driving mode of the fuse is improved, push-out is carried out by adopting a concave-convex wheel impact mode, the opening speed is high, rapid disconnection can be realized, meanwhile, a force storage structure is also arranged for storing force and releasing the force during opening and push-out, the impact type driving assembly can be further assisted to apply driving force, the opening speed is further accelerated, and the response speed is high.

The invention discloses a circuit breaker operating mechanism and a circuit breaker thereof, the operating mechanism comprises a handle, a movable contact piece, a lock catch piece, a lock catch spring and a contact spring, and at the beginning, the limiting surface of the movable contact piece is contacted with a limiting stop block on a shell to enable the operating mechanism to be in an opening state; an operating handle pushes the U-shaped rod, one end of the U-shaped rod is simultaneously contacted with a first rod contact surface of the movable contact piece and a second rod contact surface of the lock catch piece, and the movable contact piece rotates clockwise around the opening and closing rotating shaft under the pushing of the U-shaped rod until a movable contact of the movable contact piece is contacted with a static contact on the shell, so that the opening and closing of the shell is realized. And the operating mechanism is in a closed state. The operating mechanism has the advantages of being simple in structure, low in cost and high in opening speed.

The utility model relates to the field of rehabilitation training, in particular to a postpartum recovery training device for gynaecology and obstetrics. According to an existing postpartum recovery training device, a puerpera exerts force incorrectly, the effective rehabilitation exercise effect is difficult to achieve, adjustment is difficult to conduct according to the condition of the puerpera, and the rehabilitation exercise effect is poor. A postpartum recovery training device for gynaecology and obstetrics comprises a bottom frame, a sliding rail, a sliding block and the like. A sliding rail is fixedly connected to the upper portion of the bottom frame, two sliding blocks are connected to the sliding rail in a sliding mode, the two sliding blocks are symmetrically arranged, and bearing plates are fixedly connected to the tops of the two sliding blocks. When the two legs of the puerpera clamp inwards, the two bearing plates, the two sliding blocks, the two push plates and the two extrusion blocks can be driven to move in the direction close to each other until the two bearing plates are in contact, so that when the puerpera moves the legs, the legs need to apply force inwards to clamp the legs, the pelvic floor muscles of the puerpera are exercised more effectively, and a better rehabilitation effect is achieved.

The utility model relates to a spring energy storage type circuit breaker eddy current repulsion opening device comprising a closing cam arranged on a closing driving device; one end of the closing crank arm is rotationally arranged on the circuit breaker and is opposite to the closing cam; the rotating shaft is rotationally arranged at the other end of the closing crank arm; one end of the large crank arm is arranged on the rotating shaft; the connecting shaft is arranged at the other end of the large crank arm; one end of the connecting sheet is rotationally arranged on the connecting shaft; one end of the main crank arm is rotationally connected with the other end of the connecting sheet, and the other end of the main crank arm is connected with the insulating pull rod; the opening tension spring is arranged on the circuit breaker and is connected with one end of the main crank arm; one end of the connecting rod is rotationally arranged on the connecting shaft; the eddy current coil is arranged on the circuit breaker, and the connecting rod is movably inserted into the eddy current coil; the eddy current disc is arranged opposite to the eddy current coil and is connected with the eddy current coil; and the eddy current control device is connected with the eddy current coil and is used for controlling the eddy current coil to push the eddy current disc to drive the connecting rod to release the main connecting lever, and the opening tension spring drives the main connecting lever to pull the insulating pull rod for opening. According to the opening device, the opening time and the opening speed of the high-voltage circuit breaker are improved, and the opening time is shortened to 5-10 ms.

The utility model relates to a solid-sealed polar pole for a vacuum circuit breaker, which comprises a shell, a vacuum arc-extinguishing chamber, an upper wire outlet seat, a lower wire outlet seat, a permanent magnetic mechanism and an insulating pull rod assembly, the vacuum arc-extinguishing chamber and the upper wire outlet seat are both arranged in the upper part of the shell, the static end of the vacuum arc-extinguishing chamber is arranged upwards, and the movable end of the vacuum arc-extinguishing chamber is arranged downwards; the upper wire outlet seat is connected with the static end of the vacuum arc-extinguishing chamber, the lower wire outlet seat is installed in the left side part of the shell, the permanent magnetic mechanism is embedded in the lower part of the shell, and the permanent magnetic mechanism is provided with a movable pull rod capable of moving up and down relative to the shell; the upper end of the insulating pull rod assembly is connected with the movable end of the vacuum arc-extinguishing chamber, and the lower end is connected with the upper end of a movable pull rod of the permanent magnetic mechanism. The solid-sealed polar pole for the vacuum circuit breaker not only has a compact structure and can reduce the occupied space of a case, but also can effectively improve the speed of opening and closing actions of the vacuum circuit breaker, thereby ensuring the stability and reliability of the opening and closing actions.

This utility model relates to a double-acting arc-extinguishing chamber based on ball screw transmission, including a housing, a moving contact and a stationary contact disposed within the housing, a ball screw rotatably disposed within the housing, a first fixed block fixedly connected to the moving contact, and a second fixed block fixedly connected to the stationary contact. One end of the ball screw is connected to a drive device. The ball screw has a first threaded section and a second threaded section with opposite directions of rotation. The first fixed block is threadedly connected to the first threaded section, and the second fixed block is threadedly connected to the second threaded section. A first guide rail is fixedly disposed on the housing, slidingly engaging with the first fixed block, and a second guide rail is slidably engaged with the second fixed block. This utility model, through ball screw transmission, converts rotational motion into linear motion of the first and second fixed blocks, realizing the opposite or opposite movements of the moving and stationary contacts, improving the closing and opening speeds of the arc-extinguishing chamber, shortening the breaking time, and effectively improving the breaking capacity of the circuit breaker.

The present invention proposes an IP data networking communication system and method based on a very low-rate satellite channel, belonging to the technical field of low-rate satellite communication. The method sets up a satellite communication network, and the network manager matches the standard IP data transmission protocols such as the IP address and MAC address of the terminal with the terminal number, and uses the terminal number as the communication address, thereby reducing the overhead of the transmission protocol occupying the channel; through the protocol deception of the channel terminal to the host, the user's demand for using the standard IP transmission protocol is met; the network manager storage and forwarding function is designed to meet the user's demand for sending IP data at will; the Ku / C band satellite control channel is designed to reduce the time for the master station and the slave station to synchronously replace the satellite. The present invention improves the utilization efficiency of the low-rate satellite channel and reduces the transmission delay of IP data.

The application relates to a control method and device of a vehicle daytime running lamp and a vehicle end control device, and relates to the technical field of vehicles.The method comprises the following steps: acquiring the states of a daytime running lamp and a position lamp of a current vehicle; in the case that the daytime running lamp and the position lamp are in a closed state, the daytime running lamp is turned on based on the preset brightness of the current vehicle; acquiring environment information, vehicle speed information and steering wheel angle information of the current vehicle; based on the environment information, the vehicle speed information and the steering wheel angle information, the target brightness of the daytime running lamp is determined, and the luminous brightness of the daytime running lamp is adjusted to the target brightness; the energy consumption of the vehicle is reduced, and the automatic control of the vehicle on whether the daytime running lamp is turned on is realized.

The application relates to an insulating pull rod assembly and a vacuum circuit breaker. The insulating pull rod assembly comprises: an elastic buffer structure, which comprises a limiting substructure, at least two elastic deformation insulating strips and a first connecting part; the limiting substructure comprises an upper limiting table and a lower limiting column, the lower limiting column comprises a first limiting end connected with the upper limiting table and a second limiting end away from the first limiting end; the at least two elastic deformation insulating strips are coaxially distributed around the lower limiting column, one end of the elastic deformation insulating strip is fixedly connected with the upper limiting table, and the other end of the elastic deformation insulating strip is fixedly connected with the first connecting part; an insulating pull rod, the insulating pull rod and a moving conducting rod of the vacuum circuit breaker are fixedly connected on the two sides of the elastic buffer structure, the insulating pull rod is connected with the first connecting part, and the upper limiting table is connected with the moving conducting rod of the vacuum circuit breaker. The application can reduce the moving quality of the vacuum circuit breaker.

The present invention relates to the technical field of circuit breakers, and specifically to a cable support for conductive connection, comprising a support shell, a static contact, a moving contact, an insulating pull rod and an elastic connection component, wherein an upper outlet terminal is provided at the upper end of the support shell, a lower outlet terminal is provided at one side of the lower part of the support shell, and a vacuum arc extinguishing chamber is fixedly provided inside the support shell. The present invention is provided with an elastic connection component, when opening the switch, the elastic connection component gradually accumulates force, and after the elastic connection component accumulates force to a certain extent, the moving contact accelerates away from the static contact, so that the opening speed can be faster and the arc extinguishing ability can be stronger. When closing the switch, when the distance between the moving contact and the static contact reaches a preset distance, the elastic connection component quickly reduces the moving speed of the moving contact, so that the static contact and the moving contact can be closed stably and reliably, preventing the moving contact and the static contact from colliding and wearing, and preventing the moving contact and the static contact from vibrating at high speed when the moving contact and the static contact collide rigidly.

The utility model relates to the technical field of exhaust fan, especially utilize the pivot power drive cover plate's energy storage exhaust fan, including the casing, be provided with the air outlet and the air intake on the casing, be provided with the air duct butt joint in the casing inside the air outlet and the air intake, be provided with the fan in the air duct, the casing inside still be provided with the motor and power connection in the motor transmission mechanism, the casing still rotatoryly connected with pivot spare, pivot spare one end transmission connection with transmission mechanism, at least one fixed part is fixedly connected on pivot spare, pivot spare is fixedly connected with the flap through the fixed part, the motor drives pivot spare through transmission mechanism, makes pivot spare drive flap cover up the air intake or open the air intake, through adopting pivot power drive flap, compared with the traditional linear motor hinged swing arm mode, pivot rotation drive flap's structure is more compact, greatly reduces the space occupation of power drive system, is favorable to the miniaturization design and installation layout of exhaust fan.

The invention discloses a proportional pressure control valve and a hydraulic system, and relates to the technical field of valves, according to the proportional pressure control valve, a first valve element is arranged in a valve sleeve, the first valve element and the valve sleeve are in sliding connection in the axial direction of the valve sleeve, and a first inlet and a first outlet are formed in the valve sleeve; the driving unit is in transmission connection with the first valve element through a first elastic piece, the deformation direction of the first elastic piece is arranged in the axial direction of the valve sleeve, and the driving unit applies first acting force to the first valve element through the first elastic piece; the pressure supply unit applies second acting force to the first valve element; the first damping unit applies a third acting force to the first valve element; the first acting force and the second acting force are opposite in direction, and the second acting force and the third acting force are the same in direction. According to the proportional pressure control valve, the first damping unit is arranged, so that the proportional pressure control valve can be rapidly depressurized and opened and slowly pressurized and closed, and hydraulic impact caused by a working medium to the proportional pressure control valve is reduced.

The utility model relates to the technical field of overhead doors, in particular to an overhead door mechanism which comprises a door frame and a gear motor. According to the lifting door, the door frame, the upper door and the lower door are arranged, the upper door and the lower door can be moved in the door frame under the driving of the gear motor when the lifting door is used, the space occupied by rolling the door plate of the lifting door is reduced, and the lifting door is convenient to use; by arranging the gear motor, the rotating shaft, the left-handed screw rod, the right-handed screw rod, the upper door and the lower door, the rotating shaft is driven by the gear motor to rotate during use, the rotating shaft drives the left-handed screw rod to rotate through the reverser, and the left-handed screw rod drives the right-handed screw rod to rotate; the upper door and the lower door can be driven to move in opposite directions through the left-handed lead screw nut and the right-handed lead screw nut, the opening and closing speed of the overhead door can be effectively increased, and use is convenient.

The present invention relates to a pipeline plasma hole opening machine, comprising a casing and a control device, a lifting device and a hole opening device arranged in the casing, the hole opening device comprising a pan head assembly, a swing arm assembly, a slide rail assembly, a cutting assembly and a material lifting assembly, the pan head assembly comprising a pan head support plate connected to the lifting device, a first hollow rotating table being installed on the pan head support plate, a rotating table being fixed to the rotating disk of the first hollow rotating table, the swing arm assembly comprising a swing arm horizontally fixed on the rotating table, a bracket plate being vertically fixed on the swing arm, the slide rail assembly being vertically installed on the bracket plate, the cutting assembly comprising an adapter connected to the slide rail assembly, a plasma cutting gun and a laser rangefinder being fixed on the adapter, the vertical distances of the plasma cutting gun and the laser rangefinder to the axis of the first hollow rotating table being equal, and the material lifting assembly being used to extract the cut pipe wall. It has the advantages of light weight, strong functionality, safety and reliability, and fast hole opening speed, and can effectively improve work efficiency.

The utility model discloses a quick-open type rotary reaction kettle with a sealing mechanism, which comprises a base frame, a reaction kettle, a sealing device, a lifting frame, a transmission belt, a power motor, a power wheel, a stirring device, a lifting hand wheel and a screw rod, the power motor is installed on the lifting frame, a power rod is connected with the power wheel, the power wheel is in transmission connection with the stirring device through a transmission belt, the stirring device is connected to the sealing device, the lead screw is connected to the base frame and is in transmission connection with the lifting frame, and the lifting hand wheel is connected to one end of the lead screw. The quick-open type rotary reaction kettle with the sealing mechanism is simple in structure, convenient and practical, overturning of the reaction kettle is controlled through the adjusting hand wheel so that medicinal materials in the reaction kettle can be guided out conveniently, and meanwhile the lifting hand wheel drives the lifting frame to ascend and descend so that the reaction kettle can be controlled to be quickly opened.

The invention provides an IP data networking communication system and method based on a very-low-rate satellite channel, and belongs to the technical field of low-rate satellite communication. According to the method, a satellite communication network is established, a network manager enables standard IP data transmission protocols such as an IP address and an MAC address of a terminal to correspond to a terminal number, and the terminal number is used as a communication address, so that the overhead of channel occupation of the transmission protocols is reduced; the requirement of a user for using a standard IP transmission protocol is met through protocol cheating of the channel terminal on the host; a network management storage and forwarding function is designed, so that the requirement of a user for randomly sending IP data can be met; and a Ku / C frequency band satellite control channel is designed, so that the time for synchronously replacing satellites by the master station and the slave station is shortened. According to the invention, the utilization efficiency of the low-rate satellite channel is improved, and the transmission delay of the IP data is reduced.

This utility model discloses a movable, protective, prefabricated steel formwork, belonging to the field of formwork technology. The movable, protective, prefabricated steel formwork includes two identical formwork shells. Each formwork shell is equipped with: a movable part located on the lower side of the formwork shell for driving its displacement; a working platform fixed to the upper side of the formwork shell, with a protective fence on its outer side; one of the protective fences has a gap, and the working platform has a protective door at the gap. This utility model reduces site occupation and optimizes the space utilization of the prefabrication yard by incorporating the movable part; furthermore, the working platform, in conjunction with the protective fence, ensures the safety of operators.

The contact system comprises a button piece, a handle mechanism, a moving contact mechanism and a static contact which are arranged in a linear movement mode, the handle mechanism comprises a handle piece arranged in a rotating mode, a first connecting rod is arranged between the button piece and the handle piece, and the button piece drives the moving contact and the static contact of the contact mechanism to be in contact and separated through the handle piece. The moving contact mechanism is provided with an elastic mechanism, the handle piece is provided with a second sliding groove, the first connecting rod is provided with a second sliding part inserted into the second sliding groove, the second sliding groove is provided with a second closing end and a second opening end which are oppositely arranged, and when the elastic mechanism releases energy and drives the moving contact to be away from the static contact, the second sliding part is inserted into the second sliding groove. The second opening end of the second sliding groove slides in the direction away from the second sliding part, so that the handle piece is prevented from blocking the second sliding part when the moving contact is away from the static contact, the button piece does not need to completely move to the opening position, and the opening action is started before the button piece moves in place. And the opening process is realized under the driving of the elastic mechanism of the moving contact mechanism.

This invention relates to the field of throttle valve technology and discloses an ultra-high pressure zero-leakage throttle valve based on pressure rating. The valve includes a main body shell, with a sealing tube mounted on the top outer wall of the main body shell. A rotating handle is located at the top of the sealing tube. Two sets of semi-circular sealing plates are rotatably connected to one end of a limiting ring via U-shaped plates. The other end of the limiting ring is slidably connected to a support rail. When the two sets of semi-circular sealing plates move, the guiding effect of the support rail and the limiting ring causes their opposite ends to simultaneously converge towards the center end of the support rail. Simultaneously, the pressure of the flowing liquid applies pressure to the center end of the support rail, thereby reducing the liquid pressure on the rotating shaft driven by the rotating handle, which in turn drives the lead screw. This reduces the force required to open the device, facilitating easier device operation.

This invention provides a switching device. The switching device includes: a stationary contact and a moving contact assembly. The stationary contact assembly includes a first stationary arc contact, and the moving contact assembly includes a first moving arc contact and a cylinder. The moving contact assembly also includes a pull rod and a second moving arc contact. The pull rod passes through the cylinder to drive the moving contact assembly toward or away from the stationary contact assembly. The second moving arc contact is disposed on the pull rod. The switching device further includes: a piston assembly, including a piston structure and a second stationary arc contact located within the cylinder. The piston structure divides the inner cavity of the cylinder into a first and a second air chamber. The first moving arc contact and a portion of the second stationary arc contact are located in the first air chamber, and the second moving arc contact and another portion of the second stationary arc contact are located in the second air chamber. The moving contact assembly has a nozzle communicating with the first air chamber. This invention solves the problem in the prior art where the opening rate of the switching device is relatively low, affecting its switching capacity.

The utility model relates to the technical field of solid-sealed polar poles, and discloses a solid-sealed polar pole for a magnetically controlled circuit breaker, which comprises an outdoor epoxy shell, the top end of the outdoor epoxy shell is fixedly connected with a wire inlet terminal, the bottom of the wire inlet terminal is provided with a vacuum arc-extinguishing chamber, the wire inlet end of the vacuum arc-extinguishing chamber is provided with an extended copper conductive rod, and the wire inlet terminal of the vacuum arc-extinguishing chamber is fixedly connected with the outdoor epoxy shell. The movable end of the vacuum arc-extinguishing chamber is fixedly connected with a flexible connector, an insulating pull rod is fixedly connected below the flexible connector, a wire inlet side voltage sensor is installed on the middle lower portion of the rear end of the inner side of the outdoor epoxy shell, and a low-power-consumption phase current sensor and a zero-sequence current sensor are installed on the wire outlet side. A current transformer is installed in the outdoor epoxy shell. According to the utility model, a low-contact-pressure vacuum arc-extinguishing chamber scheme is adopted, and the low-contact-pressure scheme can effectively prolong the service life of the contact and increase the opening speed, so that the special function of rapid opening is achieved.

The utility model particularly relates to an inclined shaft explosion door self-locking device for a coal mine ventilation system, and belongs to the technical field of explosion door self-locking devices. The inclined shaft explosion door self-locking device for the coal mine ventilation system is used for the inclined shaft explosion door, the inclined shaft explosion door comprises a main body and a door body, the main body is arranged on a wellhead foundation, the door body is rotationally arranged on the main body, the main body is provided with a driving part, the driving part is used for driving the door body to rotate, and the self-locking device comprises a guide wheel, a traction cable and a counterweight assembly. One end of the traction cable is connected to the door body, the other end of the traction cable is suspended, and the traction cable is wound on the guide wheel. The counterweight assembly comprises a counterweight part and a magnetic attraction part, the counterweight part is connected to the suspended end of the traction cable, the magnetic attraction part and the counterweight part are arranged at intervals in the axial direction of the traction cable, and the counterweight part comprises a magnetic attraction material. The magnetic attraction part can generate magnetic attraction force on the balance weight part, the moving speed of the balance weight is increased, then the opening speed of the door body is increased, and the ventilation effect of the anti-explosion door is improved.