10results about How to "Realize mechanical self-locking" patented technology

The utility model discloses a vibration and noise reduction type screen body structure of a high-efficiency vibrating screen, relates to the technical field of vibrating screens, and aims to solve the problem that in an existing vibration reduction scheme, passive vibration reduction elements such as springs or rubber pads are mostly additionally arranged, but bidirectional control of screen mesh fastening and vibration conduction is difficult to be considered at the same time. A set of vibration reduction rubber strips are installed between the containing beam and the screen in a pressed mode, a rotating groove and a driving groove are formed in the top face of the containing beam, a locking assembly is arranged in the rotating groove, a driving assembly is arranged in the driving groove, a groove is formed in the bottom face of the screen, a hanging rod is arranged in the groove, and the hanging rod is in sliding connection with the locking assembly. An elastic interlayer is formed by the vibration reduction rubber strips arranged between the screen and the placing beams, transient vibration energy generated by material impact can be effectively absorbed, mechanical energy is converted into heat energy through viscoelastic deformation of high polymer materials in the rubber strips, and the strength of vibration transmitted to the screen body is reduced.

The utility model discloses a high-precision servo electric cylinder which comprises an electric cylinder body, a piston rod is arranged at the front end of the electric cylinder body, a guide enhancing assembly is connected to the front end of the piston rod, a transmission assembly is fixedly installed on the outer surface of the rear end of the electric cylinder body, and the guide enhancing assembly comprises a fixing plate, a guide rod, a fixing block and a guide ring. The transmission assembly comprises a worm gear, a rotating shaft, a transmission box, a servo motor, a driving shaft and a worm. According to the high-precision servo electric cylinder, the worm in the transmission assembly is a single-head worm, and the lead angle of the worm is smaller than the equivalent friction angle, so that a worm gear cannot reversely drive the worm, mechanical self-locking is achieved, stability is improved, radial loads can be shared through the arranged guide enhancing assembly and an external guide rail, the lateral force of a ball screw is reduced, and the service life of the ball screw is prolonged. And the bending moment resistance and the vibration resistance are obviously improved (particularly suitable for long-stroke or high-unbalance-load scenes), so that the precision is improved.

The application discloses a heavy door opener with convenient locking and a use method thereof, comprising a heavy door body, a hanging frame system, a hanging rail system and a hanging seat. The heavy door body is provided with a hanging rod on both sides, the door plate hanging frame body of the hanging frame system is provided with a hook device on both sides, and the hanging rod is hung on the lever hook of the hook device. The lever hook is rotated around the shaft rod by driving the opening and closing rotating shaft frame and the pull rod body through pressing the pressing rod, the hanging rod is lifted and pushed into the limiting space of the hanging seat, and the door body is lifted and reliably locked. The end of the pressing rod can be locked by the limiting hole and the pin shaft, and the anti-loosening effect is good. The application adopts a separable hanging structure of the door body and the hanging frame, is convenient to overhaul, is stable in locking, is labor-saving in operation, and supports manual and electric driving.

The invention discloses a transmission device of an electric control mechanism for an isolating switch, the transmission device comprises an isolating base, a transmission assembly and a locking assembly, when the transmission device is connected, a lifting moving block moves downwards, and a driving connecting rod and an insulating connecting rod drive a switch blade to rotate downwards to a horizontal state to realize circuit connection; in the process, the locking moving rod automatically moves towards the direction of the knife switch and completes limiting, and the knife switch is prevented from being turned upwards accidentally to be disconnected. During disconnection, the lifting moving block firstly moves downwards, the locking moving rod is driven by the moving sleeve to automatically release limiting, then the lifting moving block moves upwards, the knife switch is driven to rotate upwards to achieve disconnection, automatic locking during connection and automatic unlocking before disconnection are achieved through pure mechanical linkage, an electromagnetic lock or an electrical control element is not needed, electrical fault points are reduced, and the reliability of the device is improved. The reliability of long-term operation under severe working conditions is remarkably improved, accidental disconnection of the knife switch caused by vibration or misoperation is effectively prevented through mechanical limiting, and the stability of circuit connection and operation safety are guaranteed.

The utility model discloses a kind of self-locking structures for servo electric clamping jaw, including servo motor, the lower end of servo motor is provided with gear box, and the side of servo motor is located at the upper position of gear box and is provided with cylinder barrel, the upper end of cylinder barrel is provided with self-locking box, the side of self-locking box is equipped with clamping jaw structure, the inside of gear box is provided with first synchronous wheel, the first synchronous wheel is installed on the power shaft of servo motor, and the outside of first synchronous wheel is sleeved with synchronous belt, one end of synchronous belt is sleeved on synchronous wheel. The design is used for the clamping of automatic production line, without the case of self-locking, servo motor can be controlled to be disabled, clamping at any angle, when the workpiece needs to be self-locked, through the cooperation of driving shaft, first connecting rod and second connecting rod, the self-locking function is realized, and the reliable self-locking function can ensure that the clamping jaw maintains the grabbing state in the case of sudden situation, avoids material falling, and improves operation safety and reliability.

The invention provides a switching locking device, a rack rail vehicle power switching system and a rack rail vehicle. The switching locking device is arranged in the gearbox and comprises a gear part and a rotating shaft connecting part fixedly arranged on the switching support, the gear part is provided with a plurality of locking gears, and the locking gears comprise a toothed rail gear, a neutral gear and an adhesion gear which are sequentially arranged in the length direction of the rotating shaft connecting part; the sleeve is fixedly arranged on the gear box, and a guide cavity is formed in the sleeve; at least part of the gear locking piece extends out of the guide cavity, and the gear locking piece is used for selectively locking the gear of the rack rail, the adhesion gear or the neutral gear; the adjusting assembly is arranged in the guide cavity and used for providing elastic jacking force for the gear locking piece so that the gear locking piece can be locked at the locking gear. According to the switching locking device, the power gear can be flexibly adjusted, and the switching precision and stability of rack rail power and adhesion power are improved.

The invention discloses an intelligent terminal protective cover and a using method. The intelligent terminal protective cover comprises a base frame, a cover shell fixed to the base frame, at least two sets of locking components arranged around a clamping space, connecting rods in one-to-one correspondence with the locking components and a driving component. Each locking part is elastically hinged to the base frame through a first elastic piece and can swing between an opening position and a clamping position. The driving part penetrates through the housing and is hinged to all the connecting rods, and the locking part is synchronously driven to move by driving the connecting rods. When the locking part moves from the opening position to the clamping position, the transmission path upwards crosses the dead point position to achieve self-locking, and stable clamping is maintained. When the locking member is opened, the transmission path maintains the open state downward across the dead point position. Through the tool-free operation that locking is achieved when the cover shell is pressed downwards and unlocking is achieved when the pivot is pressed downwards, the over-dead-point self-locking mechanism is combined, rapid disassembly and assembly and high-reliability locking are achieved, and the problems that an existing protective cover is tedious in installation, prone to loosening and poor in adaptability are effectively solved.

The utility model relates to a plug-in underwater cable connector in the underwater cable connection field, which comprises a cable male head and a cable female head which are respectively sleeved with a lock disc assembly and a sleeve head seat, and a drying agent box is arranged on the inner side of the cable male head and the cable female head. Drainage holes are formed in the surface of the cable male head, drainage flow channels are arranged on the periphery of the electrodes, and the drainage holes are communicated with the drying agent box to absorb residual moisture at the connector. According to the lock disc assembly, a worm shaft is matched with a linkage disc, radial sliding of a lock chuck is achieved, mechanical self-locking is completed, and the connection stability is enhanced. According to the connector, through the synergistic effect of the sealing ring seat and the drying agent box, the dryness of the surface of the electrode is guaranteed, the reliability and safety of electric connection are improved, and the connector is suitable for high-humidity and high-pressure underwater environments.

The utility model provides a kind of micron linear drive device, including shell, base, reducer box shell and by shell, the internal space being enclosed by reducer box shell and base jointly, internal space is integrated with miniature motor, reducer, screw mechanism and sensor, the motion control single-chip microcomputer drive board of motor and the embedded processing circuit board of sensor signal processing;Single-chip microcomputer drive board is electrically connected with miniature motor, the input end of reducer is connected to the output end of miniature motor, screw mechanism includes screw nut and screw rod, and the output end of reducer is connected to screw rod, and screw nut connection is equipped with screw nut fixing seat, and screw nut fixing seat is connected with external shaft, and external shaft extends base;Embedded processing circuit board is electrically connected with sensor, and single-chip microcomputer drive board is electrically connected with embedded processing circuit board, and sensor is used to detect the position change of external shaft, and male plug is provided on base, and male plug is connected with single-chip microcomputer drive board.

The invention relates to a mechanical self-locking device and a mechanical self-locking tolerance bottom plate cylinder. The mechanical self-locking device comprises a first shell, a piston rod, a fixing chamber, a steel ball and a locking circular ring; the first shell is of a hollow structure; the piston rod is arranged in the first shell, the top end of the piston rod can penetrate through the top of the first shell, and the piston rod can move up and down; the fixed chamber sleeve is arranged on the piston rod; the locking ring is arranged at the top of the fixed chamber, and a preset distance is formed between the locking ring and the piston rod; the multiple steel balls are arranged around the periphery of the piston rod and move up and down to close or open the through hole, when the through hole is closed, the enclasping ring locks the piston rod in a self-locking mode, and when the through hole is opened, the multiple steel balls move downwards to complete unlocking. By means of the arrangement, the technical problems that most traditional tolerance bottom plate cylinders only depend on pneumatic pressure maintaining to achieve clamping, no mechanical self-locking structure exists, once an air source is interrupted, air in the cylinder bodies may leak outwards, consequently, workpieces are loosened and fall off, and potential safety hazards exist are solved.