180results about How to "Guaranteed reset" patented technology

The invention discloses a wind generating set safety chain control system. The wind generating set safety chain control system comprises a master control programmable logic controller (PLC), a pitch system, a converter system, a yaw system, a rotor braking system, a power device, a plurality of failure nodes and a plurality of safety relays. An output end of the power device is respectively connected with the pitch system, the converter system, the yaw system and the rotor braking system through different relays. The wind generating set safety chain control system further comprises a safety PLC, the failure nodes are respectively connected with an input end of the safety PLC, and coils of the plurality of safety relays are respectively connected with an output end of the safety PLC. The wind generating set safety chain control system can accurately locate different failure information and dispose the different failure information in a specific mode.

The invention relates to a miniature circuit breaker reclosure device with the clutch function. The miniature circuit breaker reclosure device with the clutch function comprises a handle device, a shaft sleeve stirring gear and a driving device. The handle device comprises a handle wheel body, and one side of the handle wheel body is provided with handle wheel body wheel teeth which are meshed with the shaft sleeve stirring gear. The driving device comprises a shaft sleeve sector gear and a driving motor, and the shaft sleeve sector gear and the shaft sleeve stirring gear are coaxially arranged. The miniature circuit breaker reclosure device is characterized by further comprising a shaft sleeve clutch key and a clutch bolt, the shaft sleeve sector gear is connected with the shaft sleeve stirring gear through the shaft sleeve clutch key, the clutch bolt is connected with a shell in a sliding mode, and the clutch bolt drives the shaft sleeve clutch key to do axial movement so that the shaft sleeve sector gear can be connected with or separated from the shaft sleeve stirring gear. The miniature circuit breaker reclosure device has the advantages that a switch can be manually or automatically switched during using so that the handle can be disengaged from power, and it can be ensured that a handle and a moving contact can reset in case of power failure during the automatic switching-on of a miniature circuit breaker.

The invention discloses a drive method compatible with various smart cards. The drive method comprises the following steps: obtaining the type of conditional access (CA) system, selecting default protocol type as the current protocol type of smart card according to the type of conditional access system; setting the initialization parameter of smart card according to the default protocol type; resetting smart card, if reset is successful, calling communication interface to communicate, and if not, setting the initialization parameter of the smart card again. By using the drive method of the invention to drive smart card, corresponding initialization settings are performed to smart cards with different CA systems, automatic switching between the smart cards with the same type and different protocols can be realized, the normal reset and communication of all the supportable smart cards can be ensured, and the compatibility and universality of the smart card drive system can be increased.

The invention discloses a double-antenna handover system in the GSM-R (global system for mobile communication for railway) network and a method thereof. The double-antenna handover system comprises a head antenna provided with user identification codes, a tail antenna provided with user identification codes and a controller used for controlling received signals and transmitted signals of the head antenna and the tail antenna and handover of functions. By channel adjusting and coordinate of the head antenna and the tail antenna, seamless handover in the GSM-R network is realized, communication quality in the high-speed environment is greatly improved, and for a single-antenna handover process, time for transmitting measuring reports is shortened, and transmission efficiency is high.

The invention discloses a coal mine vertical wind well explosion-proof door advanced explosion venting device and an explosion-proof door. The coal mine vertical wind well explosion-proof door advanced explosion venting device comprises a canopy type door body and an advanced explosion venting device, wherein the advanced explosion venting device comprises an explosion venting cover, a base, a hinge seat, a reset spring and an air reversing lock; the explosion venting cover comprises a metal cover plate, a sealing block and a cushion pad respectively adhered on the upper board and the lower board of the metal cover plate; a hinge head is arranged at one side of the metal cover plate, the hinge head is hinged with the hinge seat through a hinged shaft; a spring coil part of the reset spring is sleeved on the hinged shaft of the hinge seat, one pin thereof is fixed on the hinge head, and the other pin is overlapped on the hinge seat; the air reversing lock comprises a lock groove on the base and a spring bolt on the metal cover plate; a plurality of trapezoid explosion venting holes are equidistantly arranged on the canopy type door body around the center circumference; the lower end of the base is welded and fixed at the periphery of the explosion venting hole; and the hinge seat is welded and fixed on the canopy type door body. When the existing explosion-proof door is updated and transformed by using the explosion venting device disclosed by the invention, only the canopy type door body needs to be transformed, the work amount is small and the cost is low.

The invention provides an automobile body punching and grinding device, and relates to the field of grinding devices. The automobile body punching and grinding device comprises a supporting mechanism,wherein a pushing plate mechanism is fixedly mounted on one side of the supporting mechanism, a punching mechanism is fixedly mounted above the supporting mechanism, a rotating mechanism is fixedly mounted on above the supporting mechanism and located on one side of the punching mechanism, the supporting mechanism comprises a supporting frame, a punched hole is provided in the center of the uppersurface of the supporting frame, a supporting plate is fixedly mounted on one side of the supporting frame, the supporting frame is fixedly mounted at the rear end of the supporting frame, and the supporting frame is extended above the supporting frame. According to the automobile body punching and grinding device, a punching head is used for achieving punching through working of a first motor, rotation of a grinding tool can be achieved under the action of a pushing plate, the effect of removing a deformation material through a grinding blade can be achieved under the action of a second motor, a driven gear and a driving gear, and the problem that secondary positioning is required when the deformation material is removed is solved.

The invention discloses an automatic feeding device based on pulleys and a turnover plate. The automatic feeding device comprises a ladder obliquely arranged on the ground and an upright rod used for supporting the ladder. The ladder, the upright rod and the ground form a triangular structure. The turnover plate, used for loading materials, and a tray, used for supporting the turnover plate, are arranged on the front of the ladder. Sliding rails are arranged on two sides of the ladder. The pulleys are arranged on joints between the ladder and two sides of the tray and the turnover plate. The tray and the turnover plate are clamped in the sliding rails through the pulleys. One side of the tray is connected with one side of the turnover plate. The tray, the turnover plate and the sliding rails form a triangular structure. Two fixed pulleys are arranged on the upper portion of the back of the ladder. The lower portion of the tray is fixedly connected with a movable pulley. A three-phase positive-and-negative motor which is arranged at the bottom of the back of the ladder, the fixed pulleys and the movable pulley are connected through a steel wire rope. One side of the three-phase positive-and-negative motor is connected with a power supply mechanism. The automatic feeding device is simple in structure, small in size, convenient to operate and wide in application range.

The invention discloses an outdoor communication cabinet suitable for a wet and cold area and belongs to the technical field of communication equipment, under normal conditions, a sealed heat preservation cabinet body is in a sealed and heat preservation state, the influence of the external environment on the interior of the sealed heat preservation cabinet body can be effectively reduced, and when the temperature in the sealed heat preservation cabinet body is high, the interiors of the external heat dissipation rod, the heat insulation broken guide cylinder and the internal heat sensing cylinder can be automatically adjusted, so the interior of the sealed heat preservation cabinet body can be in heat conduction connection with the external environment under the heat conduction effect of the internal heat sensing cylinder, the external heat dissipation heat conduction rope, the connection heat transfer rod and the external heat dissipation rod, heat in the sealed heat preservation cabinet body can be quickly dissipated, and electrical components in the cabinet are prevented from being damaged due to the high temperature generated by their own operation; when heat in the sealed heat preservation cabinet body is dissipated, the displacement piston block and the like can be automatically reset, so adjustment of heat dissipation in the sealed heat preservation cabinet body can be repeatedly triggered and carried out, and practicability is improved.

Provided are a device and method for cutting straw.A travel switch is arranged on the left side of a notch of an accommodating groove, and a pair of active infrared intrusion detector switches is arranged on the two sides of the position of the notch of an accommodating groove.After a cutter is lowered to the notch of the accommodating groove, the speed is lowered, so that the risk of damaging operators' hands by the cutter is lowered.The rising speed of the cutter is quicker than the descending speed, and the operation time is saved.A pair of second active infrared intrusion detector switches is arranged at an endpoint of a short shaft of a cam and a knife rest.Only when the cutter rises to the highest position can the motor stop rotating, so that it is guaranteed that the cutter returns.

The invention discloses a farm excrement processing device. The farm excrement processing device comprises a preprocessing assembly, a driving motor, a processing assembly, a collecting box, a PLC andan electric control cabinet and is characterized in that the processing assembly is arranged, excrement on a conveying belt is flattened through a scraper blade, the excrement is sterilized and disinfected through an ultraviolet lamp, and a heating piece is powered on to operate to dry the excrement; compared with the mode of drying the excrement in the open air, the excrement processing efficiency and processing quality are improved, and a large amount of labor force and time are saved; by arranging the preprocessing assembly, the excrement enters a preprocessing box from a feeding port, solid-liquid separation of the excrement is achieved through a filter screen, waste liquid in the excrement flows into the lower portion of the interior of the preprocessing box, the excrement falls ontothe conveying belt of the processing box, and excrement processing operation is facilitated; by arranging a filter assembly, the driving motor drives a cam to rotate, the cam periodically impacts a left end plate, particles attached to the upper portion of the filter screen move downwards, and the phenomenon that the filter screen is blocked is avoided.

The invention relates to a multi-direction switching device. The multi-direction switching device comprises a chassis, an operation body which is positioned in the chassis and raised out of the chassis, a circuit board positioned above the chassis, a movable terminal which is positioned above the circuit board and in contact with the circuit board, a sliding block which is sleeved on the operation body and drives the movable terminal to move, and an upper cover which covers the sliding block, wherein the multi-direction switching device also comprises a plurality of elastic elements, one ends of which are fixedly supported by the inner side wall of the chassis and the other ends of which abut against the operation body, and the operation body moves under the driving of an external force so as to drive the elastic elements to generate deformation; and when the external force acting on the operation body disappears, the elastic elements push the operation body to return to an initial position by virtue of elastic-restoring force of the elastic elements. The structure is simple and the assembly is convenient.

The invention discloses a protection assembly of a movable static contact of a plastic shell breaker, comprising a static contact plastic piece and a plastic support piece, wherein the static contact plastic piece wraps the static contact, part of the static contact plastic piece and part of the static contact are arranged in a cavity of the plastic support piece, the static contact plastic piece is formed by combining a first plastic sheet with a second plastic sheet; a second round hole coaxial with a first through hole in the static contact is formed in the front side wall of the first plastic sheet; the front side wall on the lower part of the second round hole extends towards the bottom to form a first extension angle, the left side surface of the first extension angle is a first arc side surface always in clearance fit with the left side surface of the cavity, the rear side wall of the second plastic sheet extends towards the bottom to form a second extension angle, and the left side surface of the second extension angle is a second arc side surface always in clearance fit with the left side surface of the cavity. The lower part of the static contact is omni-directionally blocked, and the electric arc or metal particles generated by contact burnt by arc is prevented from spraying towards the lower part of the static contact, so as to ensure the normal reset of the static contact.

The invention discloses a hospital clinical laboratory test tube oscillation device with a hydraulic reset function. The hospital clinical laboratory test tube oscillation device comprises a base, a bracket, an oscillation mechanism, an adjusting mechanism, a test tube and a reset mechanism, wherein the two supports are installed on the front side and the rear side of the top end of the base correspondingly. The oscillating mechanism is assembled at the top end of the base; the adjusting mechanism is assembled on the inner side of the bracket; the test tube is arranged in an inner cavity of the adjusting mechanism; and the reset mechanism is assembled at the top of the test tube. The device can simultaneously oscillate a plurality of test tubes with different or same calibers at one time, is higher in practicability, replaces a manual oscillation mode, realizes all-directional reciprocating oscillation of liquid in inner cavities of the test tubes from all angles, is more uniform and efficient in oscillation effect, and is higher in practicability. Besides, the device can balance the pressure intensity of the inner cavity of the test tube after oscillation, so that the normal resetting of liquid in the inner cavity of the test tube is effectively ensured, and the use requirements are satisfied well.

The invention provides a flexible guide structure of a railway vehicle emergency valve. The emergency valve comprises an emergency piston assembly, an emergency piston rod, an emergency valve seat and a sandwich valve, the emergency piston assembly, the emergency piston rod, the emergency valve seat and the sandwich valve are arranged in the valve body, one end of the emergency piston rod penetrates through a guide hole of the emergency valve seat, the sandwich valve is arranged at a valve port of the emergency valve seat, the flexible guide structure is arranged in the guide hole of the emergency valve seat and used for supporting the emergency piston rod, and the emergency piston rod makes contact with the flexible guide structure all the time in the action process, so that rigid guide of the emergency piston rod in the guide hole of the emergency valve seat is converted into flexible guide. Hard abrasion between the emergency piston rod and the emergency valve seat is avoided, the emergency braking effect that the emergency piston rod is driven by the emergency piston assembly to eject the sandwich valve open is more reliable, eccentric abrasion of the emergency piston rod is avoided, it can be guaranteed that the emergency piston rod resets after emergency braking, and the action stability of the emergency valve is improved.

The invention discloses an extrusion device for PE tubular product. The extrusion device for PE tubular product comprises a heating material cylinder, a hopper, a threaded rod, a first motor, a material removing cylinder, a molding part and a trimming part. The trimming part is movably sleeved on a material discharging side of the molding part. Rectangular hollow cavities are formed in the cylindrical surface of the trimming part. Sliding block are arranged in the rectangular hollow cavities. The outer side of each sliding block is connected with a second motor and a first rotating shaft. The outer side of the second motor is fixedly connected with a connecting rod, a top block and a first rotating bead. The inner side of each sliding block is connected with a universal driving shaft. The universal driving shaft is fixedly connected with a second rotating shaft and a cutting blade. The second rotating shaft and the first rotating shaft are mutually connected through a connecting rope. The inner side of each rectangular hollow cavity is further fixedly connected with a second fixed block. A second spring is connected between the second fixed block and the top block. The cylindrical surface of the trimming part is connected with two hand shanks in a hinged mode. Each hand shank is vertically connected with a toggle plate. The toggle plate and the first rotating bead are selectively contacted. According to the extrusion device for PE tubular product, the insufficient in the prior art can be improved, and a better tubular product trimming effect is achieved.

The invention relates to the technical field of medical instruments and equipment and discloses a cardiology nursing splint for preventing a patient from lying on side. The cardiology nursing splint comprises a left slide plate, a right slide plate and a detection device, wherein a pushing and pressing device comprises a first magnetic block, a first coil, a first spring, a push rod, a fixing plate and a cushion; a telescopic device comprises a second coil, a second magnetic block, a slide bar and a second spring; and the detection device comprises an air groove, a slider, a metal ball, a variable resistor and a fixing band, and an air bag is arranged in the detection device. The metal ball on the slider makes contact with the variable resistor, the first coil and the second coil on the corresponding side are powered on, the first magnetic block pushes the cushion to reversely push the shoulder of a patient through the push rod, the telescopic device adjusts the angle of an extrusion block, so that the wound of the patient is prevented from being extruded as shown in the figure, and with the adoption of the structure, the problems of high probability of incision dehiscence, koilosternia and protrusion healing with adoption of the existing cardiology nursing splint are solved.

The invention discloses a bucket elevator with an automatic unloading function. The bucket elevator comprises an elevator body, a feeding frame is fixedly arranged on the left side of the elevator body, a feeding cavity with an upward opening is formed in the feeding frame, a first conveying cavity is formed in the lower side of the feeding cavity, and a first magnetic sliding block is installed in a first guide sliding groove in a sliding mode. According to the bucket elevator, a gravity sensing plate senses the weight of a storage barrel located on the upper side of the gravity sensing plateso as to control a second motor to be started, so that the purpose of quantitative conveying is achieved, meanwhile, through driving by a pushing device, the storage barrel storing materials moves downwards and is pushed out backwards, so that the purpose of conveying the materials is achieved, a third pushing block is driven to push a gear sleeve to slide up and down through up-down sliding of afirst jacking block, so that meshing and separation of gears are achieved, it is guaranteed that the pushing device can reset after transportation is completed, and then the transportation procedureis repeated, and the unloading efficiency is improved.

The invention relates to a hydraulic coded lock using a cipher key to unlock in the field of security and protection. The hydraulic coded lock comprises a lock body mechanism, a lock latch mechanism, a coded valve and a power unit. The lock body mechanism comprises a working medium box. The lock latch mechanism comprises an oil cylinder. The power unit comprises a manual oil pump, wherein the manual oil pump, the coded valve and the oil cylinder are connected through oil ducts. The lock latch mechanism, the manual oil pump and the coded valve are assembled on the lock body mechanism. The hydraulic coded lock is characterized in that the coded valve comprises two or more than two valve elements and two or more than two valve element locating springs, wherein the valve elements and the valve element locating springs are integrally assembled on the same valve body; one ends of the valve element locating springs are assembled on the valve elements; the coded valve is provided with a key locating platform which is used for directly limiting the position of a key in the unlocking process or indirectly limiting the position of the key in the unlocking process through location fit between the key locating platform and the lock body mechanism. The hydraulic coded lock is small in size and novel in concept, and has high innovativeness and practical value. The key and the coded valve are accurately matched, and a password can be automatically disorganized when the key is moved away.

The invention provides a deceleration method of a deceleration strip. The deceleration strip comprises a deceleration panel. One end of the deceleration panel is connected with a rotary shaft fixed to the ground, and the other end of the deceleration panel is connected with the ground through a hook. A first metal box is fixedly installed under the deceleration panel. A first direct-current electromagnet is arranged in the first metal box. A second metal box is correspondingly arranged below the first metal box and located underground. A second direct-current electromagnet is arranged in the second metal box. The identical electrodes of the first direct-current electromagnet and the second direct-current electromagnet face each other. According to the deceleration method of the deceleration strip, the purpose of deceleration is achieved by means of the magnetic repulsive force F generated by the direct-current electromagnets; meanwhile, the blocking force of the deceleration strip can be adjusted and controlled by distinguishing the vehicle speed so that the deceleration strip can be adapted to different traffic environments.