99results about How to "Easy to reset" patented technology

The invention relates to an air exhausting device, a pressure cooker cover and a pressure cooker, and belongs to the technical field of household appliances. The main technical scheme is that the air exhausting device comprises a relief valve, a jacking rod assembly and a control assembly, wherein the relief valve is buckled on an air exhaust pipe of the pressure cooker; the jacking rod assembly is used to jack up the relief valve; the control assembly comprises a control structure, a pressing rod and a limiting structure; the pressing rod can move to a set position under the control of the control structure to apply acting force to the jacking rod assembly, so that the jacking rod assembly jacks up the relief valve; the limiting structure is arranged on an inner cover of the pressure cooker cover, so as to limit the pressing rod to the set position; when the pressure cooker exhausts air, the control structure controls the pressing rod to move to the set position, and the limiting structure limits the pressing rod to the set position, so that the pressure cooker exhausts air continuously; after air exhausting of the pressure cooker is ended, the control structure controls the pressing rod to get away from the set position, so as to reset the relief valve. The air exhausting device, the pressure cooker cover and the pressure cooker are mainly used for facilitating a user to exhaust air out of the pressure cooker and reset the relief valve.

The invention relates to the design field of analog integrated circuits. The technical scheme includes that an analog accumulator capable of implementing a TDI function inside a CMOS image sensor comprises two differential sample capacitors Cs+ and Cs-, fully differential operation, two input buses, two output buses, a n+1 group integrator, the CMOS-TID image sensor adopts roll exposure with an over-sampling rate of (n+1) / n, left electrode plates of sample capacitors Cs+ and Cs- are respectively connected with an array bus of a pixel array and a reference voltage Vref, and right electrode plates of sample capacitors Cs+ and Cs- are respectively connected with a positive input end and a negative input end of the fully differential operation, so that the CMOS image sensor can perform the TID function well and the application range of the TDI technology is extended. The analog accumulator is mainly applied to design and manufacture of semiconductor image sensors.

The invention discloses an electric pressure cooker with weighing sensor on the bottom, which comprises the following parts: rigid transverse tray and rigid frame with rigid beam, rigid vertical connecting board and rigid tray, wherein the rigid beam and rigid tray chucks pan-lid, sealing coil, inner pan, heater and weighing sensor together from upwards to downwards, the output end of weighing sensor connects circuit control device, which controls heating condition of heater according to the testing result of weighing sensor.

The invention belongs to the technical field of water sampling equipment, particularly relates to a gravity piston type water sampler. The gravity piston type water sampler comprises a cylinder barrel in the middle, an upper frame positioned at the top of the cylinder barrel, and a lower frame positioned at the bottom of the cylinder barrel, wherein a piston is arranged in the cylinder barrel; a water outlet with a valve is arranged at the bottom of the outer wall of the cylinder barrel; a water inlet is formed in the top wall of the cylinder barrel; a pull rod provided with the bottom end connected to the top of the piston, is inserted in the water inlet; a lock is arranged at the top of the pull rod; the upper end and the lower end of the water inlet are both frustum-shaped openings; conical sealing tables are arranged at the lower end of the lock and the connected part between the pull rod and the piston; the two conical sealing tables are respectively fitted with the opening on the upper side and the opening on the lower side; a releasing mechanism for clamping the lock and loosing the lock under the hammer applying effect is additionally arranged at the top of the upper frame. The water sampler provided by the invention is simple in structure, and convenient and fast to operate, and can ensure that a water sample is free from cross contamination.

The invention relates to structural design of parts of a CRRT (continuous renal replacement therapy) machine, and in particular relates to an intelligent heparin pushing injector used for the CRRT machine. The intelligent heparin pushing injector comprises an injection syringe, a controller, a motor, a ball screw, an installation base plate, and a pushing base with an inner cavity, wherein a support base with a first groove in the bottom is fixedly arranged on the top of the installation base plate, and a through hole communicated with the first groove is formed in the bottom of the installation base plate; a fixed base is fixedly arranged on the top of the installation base plate, the pushing base is positioned between the support base and the fixed base, a nut of the ball screw is mounted in the inner cavity of the pushing base; a tube of the injection syringe is arranged on the top of the support base, the tail end of a handle of the injection syringe is connected with the pushing base, the output end of the motor extends towards the through hole, and is connected with the end, extending into the first groove of the support base, of a screw rod of the ball screw through a transmission mechanism, the controller is connected with the motor through a circuit to control the operation of the motor, and the nut of the ball screw drives the pushing base to push the tail end of the handle of the injection syringe to carry out pushing injection. The intelligent heparin pushing injector has the beneficial effects that the input speed is accurate to control and is stable, the operation is convenient, and the degree of automation is high.

The invention relates to a valve device, in particular to a tap water cut-off leakage-proof protection valve device, which is assembled at the water supply end of a tap water pipe net and plays a role in water cut-off leakage-proof protection. The tap water cut-off leakage-proof protection valve device comprises a leakage-proof protection valve (2) and a reset starting valve (6) connected in parallel. The leakage-proof protection valve (2) is provided with a float chamber (4); a water inlet and a water outlet are formed at the upper and lower ends of the float chamber (4); a floating plug (3) is arranged inside the float chamber (4); and the water outlet is completely closed when the floating plug (3) is attached to the water outlet of the lower end of the float chamber (4). The reset starting valve (6) is a switch valve used for opening the leakage-proof protection valve (2) after the water supply is recovered. The tap water cut-off leakage-proof protection valve device implements plugging by using the pressure of the tap water acting on the floating plug, realizes the reset starting of the leakage-proof protection valve by using the water pressure and the floating force of the floating plug in the water, and has simple structure and reliable plugging. Therefore, the leakage-proof water tightness of the whole device is easily guaranteed, and the reset operation is more convenient.

The invention provides an electronic device and a reset method and apparatus thereof, and the reset method and apparatus are used for conveniently resetting the electronic device free of a reset key. The method comprises the steps of: after the electronic device is powered on, detecting a voltage at two ends of an energy storage module; when the voltage is higher than or equal to a preset voltage, performing counting operation; performing statistics on first frequency of performing the counting operation so far; and when the first frequency is greater than or equal to a preset frequency, performing reset operation on the electronic device. Through the technical scheme disclosed by the invention, whether the electronic device is reset is judged by judging the voltage in the energy storage module connected in parallel with a circuit after the electronic device is powered on, so that a user does not need to touch the reset key for resetting, the electronic device free of the reset key can be conveniently reset, and the user experience is improved.

The invention provides a spring cement shock absorber. The shock absorber comprises a shell (1) and a shock absorption component in the shell (1), wherein the shell (1) is composed of two cylinders which are arranged coaxially and are different in diameter. The shell (1) comprises an upper shell body (1-1) and a lower shell body (1-2), and the upper shell body (1-1) is provided with a limiting ring (4) with the outer diameter equal to that of the upper shell body (1-1). The shock absorption component comprises a piston rod (5) and a spring (6). The piston rod comprises a cylindrical connecting rod III (5-6), an upper limiting block (5-5), a connecting rod II (5-4), a piston (5-3), a connecting rod I (5-2) and a lower limiting block (5-1) which are coaxially arranged in sequence from top to bottom. The upper limiting block (5-5), the piston (5-3), the lower limiting block (5-1) and an annular upper separation plate (2-1) and a lower separation plate (2-2) on the inner wall of the lower shell body (1-2) are sequentially arranged in a staggered manner. The shock absorber has the multiple shock absorption functions of the piston, elastic cement and a rubber cushion, the shock absorber can reset easily after deforming, the shock absorption energy-dissipating capacity is high, and resetting is easy after shock absorption.

The invention relates to a heel bone anatomical form plastic reset bone fracture plate for heel bone fractures, which comprises a hind limb plate for fixing a heel bone on one side of a heel and a forelimb plate for fixing the heel bone on one side of a dorsum pedis, wherein a steel plate is 1.5-2.2 mm in thickness, the hind limb plate is in a bending structure and is 24-30mm in length, and the upper part of the hind limb is a bending bent towards the left along the middle part in an angle of 5-15 degrees; the bone fracture plate further comprises an upper limb plate and a lower limb plate, the upper limb plate and the lower limb plate are respectively fixedly connected with the upper part and the lower part of the hind limb plate, the upper limb plate is 24-28mm in length, the lower limb plate is 48-52mm in length, the front end of the lower limb plate is further fixedly connected with the bottom end of the forelimb plate, an included angle of 90-110 degrees is formed between the front end of the lower limb plate and the bottom end of the forelimb plate, and the forelimb plate is 18-22mm in length; locating holes for locating the specified points of the heel bone are respectively formed at the upper end of the forelimb plate, the front end of the upper limb plate, the upper and the lower ends of the hind limb plate, screw holes are formed on the hind limb plate, the forelimb plate, the upper limb plate and the lower limb plate, and the locating holes and fixing nail pilot holes are round or elliptical holes. The bone fracture plate achieves the optimal effects of reset and internal fixation for various types of heel bone fractures, and has the advantages of being little in damage, convenient to operate and firm for fixation.

The invention relates to a safe anti-explosion gas pressure regulator. A throttling safety device is arranged at an interface position of a pressure regulating gas chamber and an inlet pipe; a safetybase of the throttling safety device is sealed and fixed on the inlet pipe; a vent hole is arranged in the safety base; a throttling safety valve core is arranged in the inlet pipe and matched with asealing surface of one opening at one end of the safety base; a reset ejecting bar penetrates through the vent hole; two ends of the reset ejecting bar are respectively matched with the throttling safety valve core and a closing plug; the closing plug is linked with one end of a hinge rod hinged on the safety base, while the other end of the hinge rod is connected with the connecting rod; and theconnecting rod penetrates through a flexible diaphragm and is connected with a reset switch outside the pressure regulator. The safe anti-explosion gas pressure regulator overcomes the defect that thecommon pressure regulator can not cut off gas source automatically when gas leaks. By adopting the specific design, the safe anti-explosion gas pressure regulator can eliminates gas safety accidentscaused by self-owned diaphragm rupture of the pressure regulator, or falling off, aging crack and rupturing by rat-bite of a gas rubber tube (hose), and the like, and the safe anti-explosion gas pressure regulator has the advantages of simple structure, high sensitivity, convenient reset operation and safe and reliable use.

The invention discloses a terminal reset control method, controller and system. The method comprises the steps of cutting off power supply of a battery to a power management chip when it is detected that a startup / shutdown key triggering mode meets a set reset condition, thereby realizing power failure reset of a terminal. According to the scheme, a startup / shutdown key is multiplexed as a reset key, and when a user presses the startup / shutdown key for a long time, the power failure reset of the terminal can be realized, so that the problem that reset and restart cannot be realized in certain cases by pressing the reset key conventionally is solved; and the startup / shutdown key and the reset key are multiplexed, so that the product cost is reduced, the reset operation is facilitated, and the user experience is better.

The invention discloses a swinging type shock insulation layer capable of achieving overall sliding friction of the bottom surface. The shock insulation layer comprises a bottom surface spherical shell and an upper-portion spherical-surface framework, wherein the lower side of the bottom surface spherical shell and a concrete foundation or a lower structure are cast integrally, and the upper surface is a large-span large-curvature-radius arc spherical surface; the upper-portion spherical-surface framework is formed by connecting a plurality of sliding blocks, connecting beams, load bearing pillars and connecting components, the lower portions of the connecting components are welded to the sliding blocks, the sides of the connecting components are connected with the connecting beams, the upper portions of the connecting components are connected with an upper structure through the load bearing pillars, the sliding blocks are in lap-joint with the upper surface of the bottom surface spherical shell, the lower surfaces of the sliding blocks keep consistent with corresponding positions of the arc spherical surface, and point-contact is avoided. The sliding spherical-surface framework is formed through connection between the sliding blocks and forms the swinging type shock insulation layer capable of achieving overall sliding friction of the bottom surface together with the bottom surface spherical shell. The bottom surface spherical shell has a large span, the allowed deformation in the horizontal direction is far higher than that of a shock insulation support, and the horizontal deformation of the shock insulation layer under super-large shock can be completely met.

The invention relates to a slope friction vibration isolation system, which comprises a retaining plate, a conical sliding concave surface and a center column, wherein the center column can move between the retaining plate and the conical sliding concave surface, and consists of an upper flange, a lower flange and a conical sliding convex surface, the titling angle of the conical sliding convex surface is in engaged contact with the tilting angle of the center of the conical sliding concave surface, the edge of the conical sliding concave surface vertically extends out of a surrounding wall, the upper end of the surrounding wall is in contact with the lower surface of the lower flange, the upper end surface of the retaining plate is embedded between the upper flange and the lower flange, and the lower end of the retaining plate is connected with the conical sliding concave surface. The system has the advantages that the resetting of the structure is easily implemented during the near-field large pulse earthquake, the vertical disengagement of the center column is effectively prevented, the risk of overturning damage of the vibration isolation system is reduced, and the damage danger of the center column and the surrounding wall caused by overlarge horizontal displacement is avoided; the wide popularization and application value is realized in the fields of earthquake engineering, structure engineering and other civil engineering.

The invention discloses a motor steering transmission system for a full-revolving propulsor. The motor steering transmission system comprises a steering motor bracket, transverse plates and a mountingflange, wherein two ends of the steering motor bracket are fixedly installed through matching of two sets of parallel transverse plates and the mounting flanges, the upper end surface of the transverse plate at the upper end is fixedly mounted with a steering motor, and the bottom end surface of the mounting flange at the bottom end is provided with a rotary propeller. The steering motor of the motor steering transmission system for the full-revolving propulsor is supported by an independent steering motor bracket, so that the rigidity of the whole system is increased, and the support strength of a speed-reducing gear box is reduced. When the steering transmission system encounters a large external force, a safe clutch can be automatically disengaged to play a protecting effect, a position sensor can provide an alarm indication, the reset operation of the safe clutch is very simple, consumes short time and has little impact on the operation of a ship, the elastic coupler can bear larger end face runout and radial runout between the steering motor and the speed-reducing gear box.

The invention discloses a rotor magnet transport mechanical hand which includes a mechanical arm. One end of the mechanical arm is connected with a rotating lifting mechanism, the other end of the mechanical arm is provided with a punched hole, and a grabbing shaft is arranged in the punched hole. An electromagnet is arranged at the bottom of the grabbing shaft, a central shaft is arranged at thebottom of the electromagnet, a tapered groove with an opening facing upwards is formed in the punched hole, and a conical limiting bump is arranged at one end of the grabbing shaft. The conical limiting bump is arranged in the tapered groove and matched with the tapered groove for returning, and the surface of the grabbing shaft located between the mechanical arm and the electromagnet is further sleeved with a return spring. The rotor magnet transport mechanical hand is low in preparation cost and high in transport precision and has a protection return function.

The invention discloses a limb far-end fracture reduction robot. The robot comprises a shell, a cavity capable of containing limbs of a patient is formed in the inner side of the shell, at least two parts are arranged in the axial direction of the shell, a telescopic mechanism is arranged between the shell and the cavity in the axial direction, and the shell extends and retracts in the axial direction along with the operation of the telescopic mechanism; two clamping rings are arranged in the cavity and include the far-end clamping ring and the near-end clamping ring, and the distance betweenthe two clamping rings changes along with the stretching and retracting of the cavity; a body surface scanner is arranged on the inner side of the cavity, and a side air bag is arranged on the side wall of the cavity; the telescopic mechanism, the body surface scanner and a traction device are electrically connected with a control circuit. The robot can be used for achieving reduction under fluoroscopy, artificial intelligence technology assisted reduction and lateral reduction.

The invention discloses an over-speed protection device for an elevator. The over-speed protection device comprises two over-speed protection sub-devices symmetrically arranged on two sides outside a car of the elevator; each over-speed protection sub-device comprises an over-speed brake mechanism, a safety gear mechanism and a micro-switch electrically connected with an elevator safety circuit; each over-speed brake mechanism comprises a chassis, a speed limiting wheel, a brake disc and two flail blocks; each safety gear mechanism comprises a steel brake rope, a wedge block and a brake block, one end of the steel brake rope is connected with the brake disc, the other end of the steel brake rope is connected with the brake block, and the brake block can move and get close to a guide rail of the car of the elevator under the effects of the steel brake rope and the wedge block; and each micro-switch is arranged on the surface where the wedge block makes contact with the brake block.

The invention provides a reset method for an LED lamp and the LED lamp. The reset method for the LED lamp comprises the following steps of receiving a first voice message used for indicating the LED lamp to execute a reset operation; sending a first confirmation message used for confirming whether to execute the reset operation; receiving a second voice message used for confirming execution of the reset operation; and executing the reset operation. According to the reset method for the LED lamp and the LED lamp, which are provided by the invention, the LED lamp, which has higher working temperature and inconvenient touch on a hanging position, is reset through voice operations, so that the reset operation of the LED lamp is simplified.

The invention discloses an electric and passive opening double-insurance smoke exhaust window. The window comprises a window body, a window opener and a pneumatic spring; the window body comprises a window frame and a window sash, and one end of the window sash is hinged to the window frame; the window opener comprises a support, a sliding rail installation base, a push shaft type window opener body and a clutch, the support is fixed to the window frame, the sliding rail installation base is hinged to the support, a sliding rail extending in the length direction is arranged on the push shaft type window opener body, the sliding rail is in sliding connection with the sliding rail installation base, an output shaft of the push shaft type window opener body is hinged to the window sash, and the clutch is used for locking or unlocking relative sliding between the push shaft type window opener body and the sliding rail installation base; and the pneumatic spring is connected between the window frame and the window sash and used for pushing the window sash open. The smoke exhaust window can be normally opened under the power-on and power-off conditions, people do not need to climb up a roof to close the window after power is recovered after power off, and the smoke exhaust window is easy to reset.

The invention provides an equipment crash recovery method and device and a storage medium. The method and device are used for improving the success rate of equipment crash recovery. If the first watchdog timing module does not receive the first dog feeding signal when the first watchdog timing module is overtime, a processor in the equipment is indicated to reset, wherein the first watchdog timingmodule is used for receiving a first dog feeding signal sent by an application layer in the equipment; if the second watchdog timing module does not receive the second dog feeding signal when the second watchdog timing module is overtime, the whole board in the equipment is indicated to reset, wherein the second watchdog timing module is used for receiving a second dog feeding signal sent by a kernel layer in the equipment.

The invention relates to a special diagnosis and treatment chair for medical treatment, in particular to a special diagnosis and treatment chair used in the medical gastroenterology department and aims to provide a special diagnosis and treatment chair used in the medical gastroenterology department. The special diagnosis and treatment chair used in the medical gastroenterology department can makea patient to vomit and have watery stools conveniently, prevent the patient from vomiting vomitus onto the body and ground and prevent viruses from being propagated without restraint. According to the technical scheme, the special diagnosis and treatment chair used in the medical gastroenterology department comprises a base, a large bearing, a large rotary shaft, a supporting plate, a supportingplate, a small concave plate, a pedal plate, a large spring, a chair plate, an oblique plate, a backrest, side plates and the like. The middle of the base is embedded with the large bearing, the largebearing and the large rotary shaft are connected through interference. The special diagnosis and treatment chair used in the medical gastroenterology department can meet the use demand of the patient, can make the patient to vomit and have watery stools conveniently, prevent the patient from vomiting vomitus onto the body and ground, protect the ambient environment, prevent viruses from being propagated without restraint and ensure the health and safety of surrounding persons.

The invention provides a cloud-based system management training platform architecture which comprises an application layer, a middleware layer, a scheduling layer and a resource layer, wherein the application layer is used for providing an interactive interface for a user so as to realize information interaction between an experimental platform and the user; the middleware layer comprises a processing engine, wherein the processing engine is used for processing an operation request of the user, which is submitted by the application layer, converting a processing result into a resource scheduling request and sending a resource allocation request to the scheduling layer; the scheduling layer is used for invoking virtual machine software to establish a virtual experiment environment through a cloud management platform; and the resource layer comprises a physical host, a storage server and physical network equipment. The cloud-based system management training platform architecture can provide basic conditions of an experiment for teachers and students anytime and anywhere. Meanwhile, the virtual experiment platform is low in maintenance cost, high in safety, simple in setting operation in a laboratory and low in time consumption.

The invention relates to a projection sand table capable of automatically constructing a terrain and a projection system, wherein the projection sand table comprises a frame, a sand table lifting assembly, a left-right mounting assembly and a plurality of sand pushing units, wherein the middle part of the frame is provided with an installation space with an upward opening; the sand table lifting assembly comprises a lifting mechanism and a sand containing table, the lifting mechanism is arranged on the frame, the sand containing table is arranged in a mounting space in the vertical direction,and the lifting end of the lifting mechanism is detachably connected with the sand containing table to drive the sand containing table to move in the vertical direction; the left-right mounting assembly comprises a mounting table and a left-right driving mechanism, and the power output end of the left-right driving mechanism is detachably connected with the mounting table to drive the mounting table to move left and right above the sand containing table; and the plurality of sand pushing units are arranged on the mounting table along the front-back direction, each sand pushing unit comprises asand pushing rod and a sand pushing driving mechanism, and the sand pushing driving mechanism is used for driving the sand pushing rods to be close to the sand containing table downwards or to be faraway from the sand containing table upwards. The technical scheme of the invention solves the problems that in the existing three-dimensional electronic sand table, the topography and the landform ofthe sand table cannot be visually observed by a user.

The invention provides an atlantoaxial dislocation posterior repositor acting on screws and rods and provided with double movable arms. The atlantoaxial dislocation posterior repositor is characterized by comprising a clip-shaped limiting frame, the clip-shaped limiting frame has a first support and a second support, the middle intersection positions of the first support and the second support areconnected in a crossed manner, and a movable support arm for tightly pressing an axis screw and a fixing rod to play a push reposition role is arranged at the head end of the first support; a movablehook arm for tightly hooking an atlas screw and the fixing rod and capable of performing pull reposition is arranged at the head end of the second support; and the tail ends of the first support andthe second support are used as handle ends. During reposition, the repositor can realize reposition by applying force with a single arm or double arms, can provide extra reposition force, can controlthe reposition distance accurately, solves the problems of insufficient posterior reposition force, reposition operation difficulty and poor reposition effects in the prior art, and can also be used for reposition of other vertebra dislocation besides atlantoaxial dislocation.

The invention discloses an anticorrosive and antirust electricity transmission iron tower. The anticorrosive and antirust electricity transmission iron tower comprises a tower tip, a tower waist, a cross arm and a tower footing surround. The tower footing surround is internally provided with a plurality of reinforcing ribs. The surfaces of the tower tip, the tower waist and the cross arm are provided with inner coatings and outer coatings. The inner coatings are aluminum spraying coatings. The outer coatings are epoxy resin coatings. The surfaces of the tower footing surround and the reinforcing ribs are provided with paint layers. The thickness of each inner coating is 35-40 [mu]m. The thickness of each outer coating is 30-35 [mu]m. According to the anticorrosive and antirust electricitytransmission iron tower, by conducting epoxy resin antirust treatment on the part at the high position of the iron tower, the quality guarantee period of the iron tower is long, the iron tower does not need to be replaced every few years, paint anticorrosion is conducted on the part at the low position of the iron tower, the cost performance is high, and future reset operation is further convenient.

The invention provides an overtemperature and overcurrent protection module with manual reset in a charged state. The overtemperature and overcurrent protection module is provided with a temperature sensor, a current transformer, a relay, a reset button, a microprocessor, a power supply interface and a load interface. The current transformer is connected with the load interface and is connected with the microprocessor through a sampling circuit. The relay is connected between the power supply interface and the load interface and is connected with the microprocessor. The temperature sensor is connected with the microprocessor through a signal input circuit. The reset button is connected with the microprocessor. When the load current or temperature reaches a set value, the microprocessor controls the relay to cut off a load circuit, the overcurrent and overtemperature protection of the load is realized, after the load circuit is disconnected, the reset button can be pressed to restore and turn on the load circuit in a state that the protection module is charged. According to the overtemperature and overcurrent protection module, the accurate measurement of the temperature and current of the load and the double protection of overtemperature and overcurrent can be realized, and the manual reset of the load of a cut-off circuit in a charged state can be carried out.

The invention discloses a separating anti-drop moving contact for a molded case circuit breaker. The separating anti-drop moving contact comprises a connecting base. A mounting through groove is formed on the connecting base. A moving contact rod is arranged in the mounting through groove. The moving contact rod is hinged in the mounting through groove. The front end of the moving contact rod extends out of the mounting through groove and is provided with a moving contact. A slide rod is hinged on the rear end of the moving contact rod. The slide rod is hinged with the moving contact rod through a connecting pin. A travel groove is formed on the slide rod. A push rod is arranged on the travel groove in a penetrating way. The push rod is rotatably arranged in an accommodating cavity. An abutting spring sleeves on the slide rod. The abutting spring abuts between the push rod and the moving contact rod. The inclined angle between the connecting line of the connecting hole and the rotatingport and the horizontal plane is greater than the inclined angle between the connecting line of the swing groove and the connecting hole and the horizontal plane. The structure is simple, the movingcontact can be separated by repulsion under the short-circuit current and the situation that the moving contact falls back because of reduction of the electric repulsion due to increasing separating distance along with driving of the mechanism does not occur.