62results about How to "Improve closing efficiency" patented technology

The application discloses a circuit breaker switching-on/off control loop broken line monitoring warning circuit. The circuit comprises a DC power supply, a microcomputer protection measurement and control device, a circuit breaker auxiliary normal-close contact, a circuit breaker auxiliary normal-open contact, a switching-off coil, a switching-on coil, a switching off monitoring red light and a tripping monitoring green light; the microcomputer protection measurement and control device comprises a switching off location relay coil, a tripping location relay coil, a switching off location relay auxiliary normal-open contact, a switching off location relay auxiliary normal-close contact, a tripping location relay auxiliary normal-open contact and a tripping location relay auxiliary normal-close contact; a duty officer can judge whether the switching-on/off loop of the circuit breaker is complete and reliable by checking the switching off monitoring red light, the tripping monitoring green light and the warning information displayed on a liquid crystal panel of the microcomputer protection measurement and control device at field, and timely adopts an effective measure, thereby improving the switching-off efficiency of the circuit breaker, quickly eliminating the switching-off loop fault of the circuit breaker and ensuring the safe and reliable running of the circuit breaker.

A crawler type grain spreading machine comprises a bottom frame, a first driving motor, a grain conveying packing auger, a grain pushing shovel, a control system and driving wheels. The first drivingmotor is mounted on the bottom frame, and the driving wheels are mounted on the two sides of the bottom frame and carry out power driving through the first driving motor. The first driving motor is connected with the control system and receives a control instruction of the control system. A rotary disc is mounted on the bottom frame, and a grain conveying support is mounted on the rotary disc. A grain throwing conveyor is mounted on the grain conveying support, and a push plate support is mounted at the front end of the bottom frame. The grain push shovel is mounted at the front end of the push plate support, and can bulldoze grain piles. The grain conveying packing auger is mounted at the rear end of the bottom frame, and a grain outlet of the grain conveying packing auger is located above the grain throwing conveyor. A crawler type structure is adopted by the driving wheels, power is high, and barrier-free running is achieved. Rubber crawler bands are adopted, strip-shaped protrusions are arranged on the surfaces of the crawler bands, and therefore friction force is increased, and grains cannot be pulverized.

The invention discloses a sluice gate device of a piling machinery. The sluice gate device comprises a sluice gate which is hinged to a bucket body through a first articulated shaft (22). The sluice gate device further comprises a power mechanism for driving the sluice gate to rotate around the first articulated shaft (22) so as to drive the sluice gate to close. Therefore, acting force for closing the sluice gate is provided by the power mechanism, and the acting force of the power mechanism can be predefined according to requirements during closing the sluice gate, thus the acting force formoving the sluice gate and the moving speed are stable, and the reliability of sluice gate closing is improved. Besides, the power mechanism is adopted to drive the sluice gate to close, which avoidsrepeating collisions, as a result, requirements on operation skills and experiences of operators are lowered, and the efficiency for closing the sluice gate is improved. The invention also discloses the piling machinery with the sluice gate device.

A locking device of a box comprises a snap hook, a Z-shaped support, a support reset piece and a button. The snap hook is provided with a snap hook leading surface, the Z-shaped support can rotate around a point in the middle of the Z-shaped support, and one end of the Z-shaped support is provided with a clamping portion. One end of the button is provided with a support leading surface which is abutted to one end, away from the clamping portion, of the Z-shaped support. The box is opened by pushing the button to have the support leading surface drive the Z-shaped support to rotate so as to separate the clamping portion and the snap hook. The box is closed by pushing a first box body to have the clamping portion slide into the snap hook along the snap hook leading surface so that the Z-shaped support resets under the action of the support reset piece and the clamping portion is clamped with the snap hook. Due to the fact that the button and the first box body can be pushed to have the box opened and closed, operation of the box can be simplified by the locking device, and box opening and closing efficiency can be improved.

The invention discloses a two-stage acceleration permanent magnetic mechanism used for a high-voltage large-open-distance vacuum circuit breaker, and belongs to the field of high-voltage vacuum circuit breakers. The two-stage acceleration permanent magnetic mechanism comprises an auxiliary starting mechanism, a main operating mechanism and a guide rod connected with a moving contact of the circuit breaker. The auxiliary starting mechanism comprises a first static iron core, a starting switch closing and opening coil, an auxiliary dynamic iron core and a push disc. The main operating mechanism comprises a second static iron core, an auxiliary switching opening coil, a main switch closing coil, a main switch opening coil, an inner magnetic ring, a permanent magnet and a main dynamic iron core. A gasket made of non-magnetic materials is arranged between the auxiliary starting mechanism and the main operating mechanism. Axial grooves are formed in the outer side wall of the main dynamic iron core and the outer side wall of the auxiliary dynamic iron core. According to the two-stage acceleration permanent magnetic mechanism, through the auxiliary starting mechanism, two-stage acceleration is conducted on the permanent magnetic mechanism with long stroke distance, working air gaps of magnetic fields of the coils are reduced, working switch opening and closing current is greatly reduced, and the starting speed of the dynamic iron cores is increased. The two-stage acceleration permanent magnetic mechanism can be designed into a round structure and a square structure according to specific operation requirements.

The invention relates to an automatic shell nosing device of an adjustable connector jack. The automatic shell nosing device comprises a bottom plate, an adjustable feed mechanism, a clamping mechanism and an adjustable shell nosing mechanism, wherein the adjustable shell nosing mechanism comprises a left shell nosing assembly and a right shell nosing assembly, and the left shell nosing assembly and the right shell nosing assembly are respectively provided with an adjusting mechanism. The device is advantaged in that a jack clamped by the clamping mechanism can realize an automatic cylindrical open-slot jack shell nosing function through the shell nosing mechanism, flexible setting of shell nosing mechanical structure motion parameters can be realized, automatic shell nosing of the jack having an external diameter phi of 0.8-3mm can be realized without replacing the shell nosing mechanism, shell nosing efficiency is improved, jack reed bending angles of the left shell nosing assembly and the right shell nosing assembly are realized through the adjusting mechanism independently, independent control on the two jack reed bending angels is realized, and a problem of unstable plugging/unplugging force caused by humpback and single side defects after shell nosing because of a jack manufacturing error can be effectively avoided.

The invention discloses a control method for intelligent door closing of an elevator. The control method comprises the following steps: A, defining the identities of passengers, and giving different elevator door-closing holding time and different door-closing speed according to different identity definitions of the passengers; and B, when the elevator reaches a calling floor and a door of the elevator is opened, identifying the identities of the passengers entering the elevators and giving the corresponding elevator door-closing holding time and the corresponding door-closing speed. In the step A, when the identities of the passengers are defined as young people or people quick in movement, elevator door-closing holding time is automatically shortened, and the door-closing speed is increased; and when the identities of the passengers are defined as the old or people unable to move freely or carrying goods, the elevator door-closing holding time is automatically prolonged and the door-closing speed is reduced. The control method can dynamically identify the identities of passengers entering a car, and can give different elevator door-closing holding time and different door-closing speed, so that the door-closing efficiency of the elevator can be improved, and the door-closing safety of the elevator can be guaranteed.

The present invention provides a cap or closure comprising a polypropylene composition, wherein said composition comprises: (i) a random propylene ethylene copolymer having an ethylene content of 3.3-7% wt, and (ii) an additive selected from an antistatic agent, an antioxidant, an acid scavenger and a nucleating agent.

The invention relates to the technical field of circuit breakers, and particularly relates to a rapid closing circuit breaker and a circuit breaker group. The circuit breaker comprises an outer shell,a handle mechanism, a tripping transmission mechanism, a magnetic tripping mechanism and a thermal tripping mechanism; the outer shell comprises a supporting base and a cover plate, the cover plate is arranged on the supporting base, and the handle mechanism is located on an upper portion of the supporting base and used for manually opening and closing the circuit breaker; the tripping transmission mechanism is located on an upper left portion of the base, and the tripping transmission mechanism and the handle mechanism are matched through a U-shaped transmission rod to achieve tripping and buckling; the magnetic tripping mechanism is arranged in the support base and is positioned below the handle mechanism; the thermal tripping mechanism is arranged on the support base and is positionedat a left lower part of the magnetic tripping mechanism; and a bottom contact point of the tripping transmission mechanism is positioned between the magnetic tripping mechanism and the thermal tripping mechanism. The circuit breaker has advantages that force storage is realized, closing efficiency is improved, closing synchronism of multiple circuit breakers is increased, and power utilization safety is improved.

The invention relates to the technical field of power electronics, and discloses a quick automatic switching-on mechanism of a molded case circuit breaker and a molded case circuit breaker provided with the quick automatic switching-on mechanism molded case circuit breaker. The quick automatic switching-on mechanism comprises a direct current motor which is fixed on the circuit breaker, wherein a fixed plate is arranged above the direct current motor, and the output end is connected with a reduction gearbox; a gear fixed at the output end of the reduction gearbox; a single rack, wherein one end of the single rack is rotationally connected to a circuit breaker main mechanism lever support in the radial direction of the gear, and a tooth opening of the single rack is meshed with the gear; and a hand shifting mechanism which is fixed on the single rack, wherein the single rack can be separated from the gear by shifting the single rack towards one side. Compared with the prior art, through meshing rotation of the single rack and the gear which are rotationally connected, self-clutching of the circuit breaker is achieved, quick closing of re-buckling-closing operation is reliably achieved, electric operation and manual operation can be achieved, a direct current motor does not need to be stopped during manual operation, and efficiency is improved.

The invention discloses a control method for an air conditioner door sheet. When it is detected that a foreign matter exists in the air conditioner door sheet, a radar wave sensor is used for detecting whether the foreign matter moves away from an air conditioner or not; and when the foreign matter does not move away from the air conditioner, the air conditioner door sheet is controlled to be opened. The invention also discloses the air conditioner and a computer readable storage medium. The dual-channel radar wave sensor is used for detecting and identifying whether the foreign matter leavesthe air conditioner or not; by using the advantages of the radar wave sensor such as the wide detection range, accurate distance determination and the like, the intelligent anti-pinch control over door opening and door closing is carried out, so that the moving stage of the foreign matter is rapidly detected while the body of a user can be protected from being injured reliably; the air conditionerdoor sheet is opened again only when it is detected that the foreign body does not leave, and the air conditioner door sheet is controlled to continue to be closed when the foreign body leaves, thus,the door closing efficiency of the air conditioner is improved, and the door closing energy consumption of the air conditioner is reduced.

The invention relates to the technical field of disconnecting links, in particular to a decoration tool with an automatic disconnecting link closing structure for building decoration. The decoration tool comprises a disconnecting link porcelain base, a connecting seat is fixedly connected to the central position of the top end of the disconnecting link porcelain base, a pull rod is hinged to the top end of the connecting seat, and an abutting block is fixedly connected to the central position of the surface of the pull rod. By arranging a first limiting mechanism and a pushing mechanism, whenthe pull rod is pulled downwards to drive the abutting block to move, the abutting block applies pressure to the inclined face at the right side of the first connecting block, so that the first connecting block is pushed to move outwards; and when the abutting block moves to the lower end of the first limiting block, a first sliding block is pushed to move through the elastic force of a first spring, the first sliding block drives a second rack to move through a gear in the moving process, the second rack drives the first connecting block to move through a second sliding block in the moving process, and the first connecting block enables the first limiting block to be attached to the surface of the abutting block in the moving process, and therefore the abutting block is limited.

The invention provides a cavity tube adjusting instrument which mainly comprises a body, a first surrounding piece and a second surrounding piece, wherein the first surrounding piece and the second surrounding piece are movably connected with the body. Wherein at least one of the first surrounding piece and the second surrounding piece is provided with a locking structure, the locking structure can enable the first surrounding piece and the second surrounding piece to be combined with each other so as to form a surrounding part surrounding a target lumen in the circumferential direction, and the first surrounding piece and the second surrounding piece can synchronously reciprocate relative to the body so as to adjust the sectional area of the surrounding part. And the cross section of the target cavity tube is deformed to different degrees according to different sectional areas of the surrounding part. Therefore, the flow rate of the liquid in the target cavity tube can be conveniently and accurately regulated and controlled, and the flow rate regulating device has the advantage of being short in operation stroke.

The invention discloses a pedal type computer input device and a pedal type computer input method. The pedal type computer input device comprises a pedal device, wherein the pedal device comprises a base, the top part of the base is provided with a sliding sleeve, a clamping groove is formed in the inner wall of the sliding sleeve, a clamping block is arranged inside the sliding sleeve, the surface of the clamping block is provided with a buckle, the buckle is matched with the clamping groove, a groove is formed in the bottom part of the clamping block, the groove is internally provided with aprotection block, a live wire is arranged inside the protection block, the live wire penetrates the clamping block and extends to the outside, the bottom part of the live wire is provided with a first connecting block, first springs are arranged on both sides of the protection block, the first springs are fixedly connected with the base, the bottom part of the protection block is provided with apositioning cylinder, and a protection ring is arranged inside the positioning cylinder. Through arranging the pedal device, the pedal type computer input device effectively isolates and protects thelive wire and a null line, avoids contact of the live wire and the null line when not in use, improves the firmness of the overall structure, increases the protection effect, and avoids the electric shock problem caused by long-term use.

The invention discloses a steel bar grating connecting structure for a multi-arch underground excavation pipe gallery primary support structure and a construction method. A steel plate is arranged onthe outer side of a steel bar grating of a first excavation bin at the connecting position of steel bar gratings of support structures of two adjacent bin primary to serve as an embedded connecting piece; the steel plate is welded with a steel bar grating main rib, and the plane of the steel plate is perpendicular to the connecting direction; anchor bars are arranged on the back of the steel plate, preformed holes and high-strength bolts are symmetrically arranged on the steel plate, the ends of one sides of the bolts are flush with the inner side of the steel plate, and the other sides of thebolts extend outwards to be reserved for being connected with steel bar grating connecting plates of adjacent bins; and two pieces of angle steel are arranged at a co-constructed connecting end partof a corresponding steel bar grating of a subsequent excavation bin, bolt holes are preserved in the angle steel at the positions corresponding to connection with the high-strength bolts, and the angle steel are rapidly and firmly connected with the steel plate as the preserved connecting piece. Compared with an existing construction method, according to the method, the construction progress can be effectively improved, the adjacent bins and an overall co-construction primary support are quickly closed to form a ring, the influence of excavation on a soil body is reduced, and the method has wide development and application prospects in multi-arch underground excavation construction.

The embodiment of the invention discloses a window closing method and device, an electronic device and a storage medium. The method comprises the following steps of acquiring a closing trigger event of a current window, and broadcasting the closing trigger event to a candidate window; judging whether a target window for maintaining the window information of the current window exists in the candidate windows or not; and if yes, closing the current window and the target window in a linkage manner. By running the technical scheme provided by the embodiment of the invention, the window closing efficiency can be improved, and the user information security can be guaranteed.