574 results about "Electromagnetic lock" patented technology

A parcel delivery security container includes a bottom panel, side panels, a lid, an electromagnetic lock assembly, an input device, a barcode scanner, a microprocessor, and a power source. The side panels are transverse to the bottom panel to form an open-ended compartment. The lid is pivotably connected to one of the side panels to selectively open and close the compartment. The electromagnetic lock assembly releasably locks the lid when closed. The input device is on an outer surface of the security container to permit a user to enter information. The barcode scanner is on an outer surface of the security container to scan barcodes on parcels. The microprocessor is operatively connected to the input device, the barcode scanner, and the electromagnetic lock assembly to control locking and unlocking thereof. The power is operatively connected to the input device, the barcode scanner, the electromagnetic lock assembly, and the microprocessor.

The invention discloses a biped robot knee joint self-adaptive locking device which comprises a rotary joint module, a sliding locking module and a sensing control module, the sliding locking module comprises an electromagnetic lock, a sliding sleeve, a reset spring, a locking sliding block, a linear guide rail and a connecting block, and the sliding sleeve is connected with the electromagnetic lock; the locking sliding block is installed on the sliding sleeve through the reset spring, the electromagnetic lock and the linear guide rail are fixed to the connecting block through bolts, the sliding sleeve is installed on the linear guide rail, and the sliding sleeve and the linear guide rail form a sliding pair. By means of the ingenious mechanical structure design, in combination with a gait phase recognition control method following a natural biped walking mode, rigid locking of the knee joint in a standing phase and flexible releasing of the knee joint in a swinging phase are achieved in a proper walking stage, and the locking mechanism has the advantages of being light in weight, low in power consumption and rapid in response; compared with an existing hydraulic locking scheme, the hydraulic locking device is simpler in structure, free of complex hydraulic pipelines and driving systems, smaller in overall size and lighter in mass.

The high-power servo drive cabinet comprises a cabinet body, a bottom air inlet hole is formed in the bottom of the cabinet body, a bottom dustproof net is arranged in the bottom air inlet hole, a top air outlet hole is formed in the top of the cabinet body, and a centrifugal fan is arranged in the top air outlet hole; the device comprises two cooling supporting mechanisms, a switch controller and a servo driver, a plurality of mounting brackets are arranged at the tops of the two cooling supporting mechanisms, and the switch controller and the servo driver are mounted at the tops of the cooling supporting mechanisms through the mounting brackets; and the isolation plate is fixedly installed in the cabinet body, and four electromagnets are arranged on the isolation plate. According to the device, gas-liquid cooperative heat dissipation is adopted, the centrifugal fan and the S-shaped cooling pipe are arranged in an orthogonal mode, the heat dissipation efficiency is improved, the modular drawing design is adopted, the sliding rail and the electromagnetic lock are rapidly disassembled and assembled, the maintenance time is shortened, the high-sealing connector is adopted, the arc-shaped electromagnetic adsorption connector and a two-stage dustproof structure are adopted, and the dustproof effect is improved.

The invention relates to the technical field of valve body flange machining, and discloses a valve body flange drilling and tapping integrated device which comprises a support, a protective cover installed above the support and an XY-axis moving platform installed in the protective cover. The procedures of vertical drilling, transverse drilling, tapping, overturning, scrap removal, slag removal, cutter cleaning and the like are integrated in one device, multi-face and multi-type hole machining of a valve body is completed in a protective cover at a time, the through hole end of the valve body is positioned in an interference fit mode through a limiting column, a positioning disc, servo motor driving and electromagnetic lock indexing positioning are matched, and the machining efficiency of the valve body is improved. The valve body is ensured to be strictly kept in the same axis in the rotating and subsequent fixed shaft overturning processes, the valve body can be automatically grabbed and accurately overturned by 180 degrees through the overturning mechanism, the limiting column can be accurately sleeved with the through hole in the other end of the valve body again through overturning, it is ensured that the through holes in the two ends are drilled in the same straight line, and the machining efficiency is improved. And the problem of positioning errors caused by manual overturning is solved.

The invention relates to the technical field of safety control of fire exit doors, in particular to an emergency unlocking device and system of an intelligent fireproof door. The analysis subsystem outputs a fire alarm confidence coefficient value and an operation intention intensity value; the arbitration subsystem sends a blocking signal to the automatic locking control system and activates a to-be-decoupled state of the execution subsystem when the intensity of the operation intention exceeds a threshold value; the execution subsystem synchronously adjusts a mechanical transmission stroke parameter and an electromagnetic latching current parameter according to the intensity value of the operation intention; the fault-tolerant subsystem switches the mechanical locking mechanism to a geometric dead point position to release automatic control connection; and the traceability subsystem records the operation data and maintains storage when the power supply is interrupted. According to the invention, a closed-loop control chain from signal sensing to physical decoupling is formed, the problem of authority conflict of automatic locking logic blocking manual operation is solved, and the timeliness and reliability of emergency unlocking are improved.

The invention discloses an electromagnetic lock durability intelligent detection method integrating fault early warning, and relates to the technical field of electromagnetic lock detection, and the detection method comprises the specific steps: firstly, integrating three sensors in an electromagnetic lock to collect and store magnetic flux, temperature and current data; preprocessing the data and extracting fusion features through a multi-physical-quantity collaborative fusion algorithm; extracting features to construct a data set, dividing working conditions by using K-means, and training a correlation model by means of an SVM (Support Vector Machine); a fault early warning threshold value is calculated based on the model, and a dynamic adjustment mechanism is established; and finally, inputting real-time data to identify faults, and obtaining operation and maintenance suggestions through a durability prediction algorithm. According to the method, the three-dimensional sensor is integrated, parameters are dynamically weighted by using a multi-physical-quantity collaborative fusion algorithm, and the early warning accuracy is improved in combination with K-means and SVM models; passive maintenance is converted into predictive maintenance by dynamically adjusting a threshold value and a durability prediction algorithm, so that the fault risk is reduced, and the management efficiency is improved.

The invention relates to the technical field of electrostatic protection, and discloses an electrostatic protection method and system for an electromagnetic lock, and the method comprises the steps: obtaining an electromagnetic lock signal sequence and tiny interference characteristics; obtaining an impact signal sequence and an impact characteristic parameter according to the electromagnetic lock signal sequence; obtaining a core interference fragment according to the impact signal sequence and the impact characteristic parameter; obtaining a time distribution characteristic according to the core interference fragment; obtaining a refining interference signal according to the time distribution characteristic and the core interference fragment; obtaining a risk level according to the refining interference signal; obtaining a stable output signal according to the risk level; and according to the stable output signal and the tiny interference characteristics, electromagnetic lock precise protection is carried out. The method can improve the anti-interference capability of the electromagnetic lock.

The invention relates to the technical field of injection molding production and manufacturing, and discloses an injection molding raw material feeding mistake-proofing verification system for a safety system airbag, which comprises a central verification server, an edge computing gateway, an intelligent hopper unit provided with an electromagnetic locking mechanism and a handheld intelligent terminal. The handheld terminal is used for collecting information, and the server verifies order matching and generates an unlocking instruction when the physical position identifiers are consistent and are in a preset time window. The system establishes a virtual session to lock the injection molding machine in a single-batch mode, and the product taking-out manipulator and the label printer are linked in real time through the interlocking control module according to the session state. The algorithm engine module calculates single-mode consumption based on screw metering parameters and melt PVT characteristics so as to invert real-time inventory, and pressure and speed characteristics in the glue injection process are extracted in combination with the rheological analysis module to generate rheological fingerprints for attribute verification. According to the invention, the space-time physical interlocking of the feeding authority, the whole-process batch anchoring and the online closed-loop monitoring of the physical attributes of the raw materials are realized.

The intelligent vehicle door comprises a vehicle door body, a door frame, a first lock bolt, a first electromagnetic lock, a first inner handle, a second door lock assembly, a thermal expansion assembly and a controller. The first lock bolt is connected with the first electromagnetic lock and the first inner handle, and the first lock bolt is connected with the door frame in a clamped mode. A user can unlock the second door lock assembly and the first lock bolt and unlock the locking state between the first lock bolt and the door frame through the controller or directly through manual operation; besides, when the environment temperature of the vehicle is high, the thermal expansion assembly can be gradually expanded along with temperature rising and abuts against the second door lock assembly and the first inner handle, so that unlocking is conducted between the second door lock assembly and the first lock bolt, unlocking is conducted between the first lock bolt and the door frame, and automatic opening of the vehicle door is achieved; according to the invention, people outside the vehicle can be helped to quickly rescue the user, a very effective escape opportunity is provided for the user, and the performance of the vehicle in the aspects of safety and reliability is greatly enhanced.

The invention relates to the technical field of 3D printing, in particular to closed 3D printing equipment with intelligent image recognition and a method thereof.The closed 3D printing equipment comprises a printing cabin, the whole printing cabin is in a cube shape, and a cabin door capable of being opened and closed is arranged at the front end of the printing cabin; an electromagnetic lock is arranged on the inner side of the cabin door, so that a sealed 3D printing space is formed when the cabin door is closed; a sealing rubber strip is adhered to the butt joint surface of the cabin door and the printing cabin body in a surrounding manner; a transparent observation window is embedded in the upper middle part of the cabin door; a printing mechanism is installed in the printing cabin, and an intelligent image recognition module is arranged in the center of the top in the printing cabin. A consumable supply mechanism is arranged at the side end of the printing mechanism in a matched mode, a temperature control system and a control system are further integrated at the rear end in the printing cabin, and a display screen assembly is arranged on the outer side of the printing cabin. Through multi-structure collaboration and automatic process design, the printing environment stability, the printing quality precision and the operation convenience are remarkably improved, and the system is suitable for the fields of industrial manufacturing, scientific research and the like needing high-precision and high-quality printing.

The utility model discloses a full-automatic shared bicycle fixed-point returning electronic lock which comprises a base, two positioning frames are fixedly connected to the top of the base, limiting grooves are formed in the tops of the two positioning frames, recognition modules are fixedly connected to the bottoms in the limiting grooves in an embedded mode, a bicycle body is arranged between the two positioning frames, and the bicycle body is fixedly connected with the two positioning frames. A front wheel frame is arranged on one sides of the two positioning frames, and a bicycle locking assembly is jointly arranged on the sides, close to the front wheel frame, of the two positioning frames. The front wheel frame, the limiting groove and the electromagnetic lock are matched with one another, and the front wheel frame and the limiting groove are used for fixing the shared bicycle, so that a handlebar of the bicycle and a bicycle body including a front wheel are stably positioned and are not prone to toppling over; the electromagnetic lock at the top of the base attracts and locks the vehicle, the vehicle structure is not prone to being damaged when the vehicle is subjected to external acting force, and the service life of the vehicle is prolonged.

The invention relates to the technical field of mold changing of injection molding machines, in particular to a rapid mold changing mechanism for injection molding machining and an injection molding machine thereof, and solves the problems that when an injection molding machine mold changing mechanism is used, a new mold can be installed only after an old mold is taken down and placed well, operation is inconvenient, mold positioning is generally not achieved when the mold is installed, and the mold changing efficiency is high. The injection molding machine comprises an injection molding machine mechanism, and two injection molding mold structures are arranged in the injection molding machine mechanism. Mechanical locking of the mold body is achieved by clamping the limiting insertion rods into the limiting grooves, meanwhile, the electromagnet is powered on, a magnetic conductive plate of the mold body is electromagnetically attracted through the electromagnet, electromagnetic locking of the mold body is achieved, the stability of the mold body is improved, and the service life of the mold body is prolonged. And the situation that the mold body is not mounted in place to cause mold slot positions during mold replacement is avoided.

The invention provides an automatic opening and closing drawer structure which comprises a cabinet body, an inner cavity is formed in the cabinet body, a drawer is arranged in the inner cavity in a drawable mode, a rack is arranged on one side of the drawer in the drawer drawing direction, a driving unit meshed with the rack to drive the drawer to be opened or closed is arranged in the drawer, and an electromagnetic lock is arranged on the rear side of the inner cavity. The front end of the rack is hinged to the interior of the inner cavity, a back plate of the cabinet body is provided with a sliding groove, the rear end of the rack is provided with an operation arm which penetrates through the sliding groove and extends to the outer side of the cabinet body, and the locking mechanism is connected with the operation arm. The operating arm is detachably installed on the back plate of the cabinet body and at the rear end of the fixed rack, a pressing rod is arranged in the operating arm and used for pressing a shifting rod of the electromagnetic lock to release the locking state of the electromagnetic lock, and when the drawer needs to be opened emergently, the locking mechanism is detached, the operating arm is pressed, the gear is disengaged from the rack, and the locking state of the electromagnetic lock is released.

The utility model discloses a partial discharge on-line comprehensive monitoring device comprising a device main body, a monitoring host is positioned at a rear position in the device main body, and the monitoring host is provided with a short circuit grounding sensor, a high voltage live sensor, a locking alarm mechanism, an antenna, a grounding wire, a communicator and a working power supply. The high-voltage electrified sensor is connected with a coupling sensor, a coaxial line is connected between the high-voltage electrified sensor and the coupling sensor, the locking alarm mechanism is connected with a power supply input port, an electromagnetic lock and an alarm signal output interface, and the communicator is connected with a shielding line. According to the partial discharge on-line integrated monitoring device of the utility model, a high-voltage sensor matched with an original live display of a ring main unit is used as a front coupling sensor of a pulse partial discharge integrated monitoring instrument, so that partial discharge signals can be rapidly captured, partial discharge types can be accurately analyzed, and partial discharge positions can be accurately positioned.

According to the translation rotating type folding and unfolding locking mechanism suitable for the folding wing, the folding and unfolding mechanism and the locking mechanism are provided, the folding and unfolding mechanism is installed on a fixed wing, and the folding wing is driven to be folded and unfolded relative to the fixed wing; the locking mechanism is used for relatively locking the position between the folding wing and the fixed wing; the folding and unfolding mechanism comprises a servo motor, a telescopic rod, a linear sliding rail, a supporting sliding block, a rotating shaft, a semi-U-shaped sliding groove support, a gear reducer and an electromagnetic lock. Optical shafts of the rotating shafts penetrate through inner holes of the supporting sliding blocks, and one ends are connected with flanges to be fixedly connected with folding wings; the V-shaped bearing at the other end is connected with the semi-U-shaped sliding groove of the semi-U-shaped sliding groove support in an embedded mode, the V-shaped bearing slides in the semi-U-shaped sliding groove support in a limited mode, rotation and sliding of the rotating shaft are implemented, and the folding wings are driven to be unfolded or folded. The folding wings are pushed to slide and rotate along the curved surface sliding grooves in a linear driving mode, two sequential actions of translation and rotation of the folding wings are achieved, and the folding and unfolding actions are coherent.

The utility model discloses a novel electromagnetic lock mounting plate, including lock head, mounting plate and install the relay plate on the mounting plate, the first screw rod is fixed with symmetry to the side of mounting plate close to lock head, and the inside symmetry of relay plate is provided with the installation slot, and the inside of installation slot is equipped with the adjusting assembly of cooperation with the first screw rod, adjusting assembly includes the second screw rod of fixedly being equipped with the symmetry on the side wall of installation slot, the first connecting plate of being located the inside of installation slot and the second connecting plate of fixedly being equipped with the end of first connecting plate, the inside of first connecting plate and second connecting plate all are provided with rectangular groove, and the nut of end screw thread connection has the nut of end screw thread connection also, the second screw rod is moved in the rectangular groove of second connecting plate and the end is also screw thread connection has the nut. Through above -mentioned structure, the relay plate of fine adjustment mechanism is convenient for position adjustment when the door fan deformation to better with lock head contact, avoided the trouble that needs to reinstallation, and the practicality is strong.

The utility model discloses a safety switch assembly of an electromagnetic lock. The safety switch assembly comprises a machine body, a machine cover and a limiting structure, when the machine cover is placed on the surface of the machine body, the inserting block can be inserted into the inserting groove, then the threaded rod is rotated to be connected with the threaded sleeve, meanwhile, the connecting rod can be pushed to push the pushing block, the clamping rod is inserted into the clamping groove, the pushing block can be pressed on the inserting block at the moment, and therefore the inserting block is limited and fixed. The machine cover is fixed on the machine body, the machine cover cannot be damaged due to the fact that the screw is too tight, the screw is not prone to being damaged, and during disassembly, the screw is rotated to drive the push block, so that the clamping rod slides out of the clamping groove, limiting of the inserting block is relieved, then the machine cover can be taken down, and the beneficial effect of convenient disassembly is achieved.

This specification provides a wafer cassette docking system that, through the systematic integration of local environmental control, multimodal sensing, and active compliant adjustment functions, achieves an overall performance improvement in the wafer cassette docking process. It can form a stable positive pressure laminar flow air curtain at the initial stage of docking, effectively isolating external particles and providing a continuous ultra-clean environment for the wafer. Employing a multi-sensor fusion scheme consisting of global vision, laser ranging, and feature recognition, it can quickly and comprehensively acquire the six-degree-of-freedom pose information of the wafer cassette, providing a high-precision data foundation for subsequent fine alignment. A micro-motion adjustment platform based on piezoelectric ceramic actuators, combined with real-time closed-loop feedback control, enables nanometer-level active compliant alignment, significantly improving alignment accuracy and reliability. An electromagnetic locking mechanism ensures the stable maintenance of the final pose. The collaborative work of each module improves docking accuracy and efficiency, and also enhances the system's adaptability and stability under different operating conditions.

The invention provides an anti-electric-shock and dustproof low-voltage branch box, and relates to the technical field of low-voltage power distribution equipment, the anti-electric-shock and dustproof low-voltage branch box comprises a box body, a box door and a box cover, the box body comprises an outer-layer insulation shell, an inner-layer insulation shell and an interlayer, and the interior of the box body is divided into a branch box main body cavity, an electrical isolation cavity, a heat dissipation and dust removal channel and an independent wire duct cavity; a wiring terminal set, an insulation positioning frame, an adjustable supporting column, an electric leakage detection module and a grounding terminal are fixed in the branch box body cavity, a power controller and an airflow dustproof assembly are arranged in the electrical isolation cavity, the upper end and the lower end of the heat dissipation and dust removal channel correspond to the airflow dustproof assembly and the diversion opening and closing mechanism, and the box door is provided with an electromagnetic lock and a wire groove plugging plate. The beneficial effects of the invention are that the double-layer insulation structure is combined with the electric leakage detection module to realize linkage of electric leakage, power failure and door locking, so that the anti-electric shock safety is improved; through the sealing design of the active airflow barrier and the multi-stage filter screen, the synergistic interaction of dust prevention and heat dissipation is realized, the maintenance cost is reduced by a modularized convenient structure, and the reliability and the practicability are greatly improved.

The utility model provides an equipment safety door electromagnetic lock, which relates to the technical field of equipment safety doors and comprises a shell and a shell cover, a fixed mounting plate is arranged on the side surface of the shell, and a mounting hole is formed in the surface of the fixed mounting plate; according to the electromagnetic lock, the limiting rod is pulled to retract backwards and slides out of the limiting hole formed in the connecting disc at the same time, at the moment, limiting on the electromagnetic lock head is relieved, the electromagnetic lock head can be disassembled by pulling the electromagnetic lock head, the tension spring is compressed while the limiting rod is pulled, and when the limiting rod is loosened, the electromagnetic lock head can be disassembled under the action of the tension spring. When the electromagnetic lock head is quickly disassembled and assembled, the sliding connection between the connecting disc and the mounting disc and the matching of the clamping block and the clamping groove ensure the stability and accuracy of the action of the lock head, so that the maintenance and repair work of the electromagnetic lock head is facilitated; and the lock head can be quickly disassembled and assembled without a complicated tool, so that the overall maintenance efficiency and usability of equipment are improved.

The application relates to the field of high-voltage maintenance, and discloses a high-voltage maintenance grounding rod intelligent anti-misoperation locking system and method, which comprises a mounting device mounted outside a cable, wherein the mounting device comprises a shell one, the shell one is arranged as a U-shaped shell, a cover plate one is mounted on the upper surface of the shell one, a fixing sleeve is slidably connected to the inner wall of the shell one, a hook is inserted into the inner wall of the fixing sleeve, an electromagnetic lock is mounted on the inner wall of the shell one close to the rear end position, a lock tongue is arranged on the rear surface of the fixing sleeve, a circuit board one is mounted on the upper surface of the electromagnetic lock, and a closing plate is mounted on the upper surface of the fixing sleeve; and a grounding device is used for releasing current. In the application, the mounting device and the grounding device with the communication function are arranged, when mounting is needed, the grounding device needs to be first fixed outside a grounding support, so that the grounding device can send signals to control the mounting assembly to be unlocked, and when the grounding device needs to be removed.

The utility model provides an anti-theft wattmeter box, which belongs to the technical field of wattmeter boxes and comprises an electric energy metering mechanism. Comprising a first supporting shell, a first box body fixedly installed in an inner cavity of the first supporting shell, an anti-theft assembly arranged on the outer side of the first box body, a lock seat fixedly installed on the outer side of the first box body and a second supporting shell fixedly installed on the outer side of the first supporting shell. Basic protection is formed through a double-layer box body nesting structure, and a physical barrier is formed by matching with a shielding piece and a shell sleeve of the anti-theft assembly; the warning mechanism adopts a double-trigger mode of a mechanical baffle and an electronic pressure sensor, so as to realize instant alarm when the door is opened abnormally; the intelligent linkage locking function of the electromagnetic lock cylinder is combined with the cable protection design of the guide raised line, so that the whole structure has damage resistance, quick response and use convenience, the problem that a traditional electric meter box is easy to damage and steal electricity is effectively solved, and the safety protection level of electric power facilities is remarkably improved.

The utility model discloses an electromagnetic lock with a compact structure and a window, and the electromagnetic lock comprises a mounting plate which is provided with an unlocking area and a locking area; the first locking block is provided with a clamping opening, the opening direction of the clamping opening can be switched between the unlocking area and the locking area, and a first protruding part is arranged on one side of the first locking block; the second locking block is rotatably mounted on the mounting plate, the second locking block and the locking area are arranged on the same side, a second protruding part is arranged on the side, close to the first protruding part, of the second locking block, and the first protruding part is movably connected with the second protruding part; the electromagnetic device is provided with a movable electromagnetic push rod, and the end part of the electromagnetic push rod is connected with the second locking block; the locking rod is arranged outside the mounting plate, and the locking rod is movably connected with the clamping opening in an inserted mode; the electromagnetic ejector can push the second locking block to rotate, and when the second locking block rotates, the first locking block can be driven to rotate so as to achieve switching of the opening orientation of the clamping opening. The electromagnetic lock is applied to the window.

The utility model relates to the technical field of catching and transporting equipment, and provides a veterinary catching and transporting device which comprises a catching cage mechanism, one end of the catching cage mechanism is connected with a catching cage door mechanism in a sliding mode, a fixing mechanism is arranged in the catching cage mechanism and comprises a mounting plate, and a sliding groove is formed in the front end of the mounting plate. Three groups of uniformly distributed electric telescopic rods are fixedly connected to the rear end of the mounting plate, after an animal is caught, the mounting block is driven to get close to the animal by driving the electric telescopic rods, and the animal is controlled by arranging two groups of second sliding blocks, so that a worker can conveniently take out the animal from the cage, and the animal is prevented from escaping from the catching cage or hurting the worker; the movable plate is arranged to control the electromagnetic lock body to release the electromagnetic lock suction block, after an animal enters the catching cage and steps on the movable plate, the catching cage door falls down to close the animal in the catching cage, manual control of workers is not needed, and the workload of the workers is conveniently reduced.

The invention provides a multi-scene adaptive unmanned aerial vehicle lithium battery safety test equivalent drop device. The device comprises a track system, an attitude keeping system, a collision platform and a control system. The driving assembly is reset to the target height of the guide rail assembly, and the test sample is installed on the posture adjusting mechanism through an electromagnetic lock of the posture keeping system. Initializing the system, and setting tested target drop parameters such as equivalent drop height, battery collision posture and collision surface type in the control system; when testing is started, the control system automatically controls the posture adjusting mechanism, adjusts the test sample to a set angle, controls the driving assembly to accelerate the test sample to a target speed on the guide rail assembly, and releases the test sample at a precise moment. And the test sample does free falling motion at a set speed and posture to impact the collision platform. The control system collects, stores and processes all sensor data. Through the arrangement, an efficient drop test scheme of multi-attitude and multi-environment working conditions can be simulated in a small space.

The invention provides a rescue docking device, method and system for a safety door of an inclined elevator car, relates to the field of elevator rescue, and solves the technical problems that in the prior art, the rescue mode for passengers in a fault inclined elevator is relatively tedious, and the safety still exists. According to the method, a lift car and a fixing support fixed to the lift car are included, a foldable guardrail gap bridge mechanism is installed on the lift car, the guardrail gap bridge mechanism is limited through a cable-stayed steel wire rope arranged on the fixing support, and a setting electromagnetic lock and a butt joint electromagnetic lock are arranged on the guardrail gap bridge mechanism. The method and the device are used in the process of rescuing passengers in the inclined ladder when the inclined ladder breaks down. When a fault occurs in oblique movement, rescue is achieved by controlling the adjacent oblique movement ladders to be aligned with the faulted oblique movement ladder, and after the two guardrail gap bridge mechanisms are aligned, the gap bridge bottom plate can provide enough support, and compared with a ladder stand mode, the situation of step missing is avoided.

The application relates to a modular magnetic reconfiguration parallel robot joint system for on-orbit autonomous assembly of a spacecraft, and belongs to the technical field of space equipment. The system is aimed at solving the problems of poor flexibility, low reconfiguration efficiency, difficulty in balancing high precision and high stiffness, and low reliability of existing space parallel robots. The technical scheme comprises a Halbach array magnetic ball and an electromagnetic locking ring of a magnetic joint module, a carbon fiber telescopic connecting rod micro servo motor and a harmonic reducer of a distributed drive branch chain, a multi-sensor data fusion unit configuration optimization algorithm module and a real-time control unit of an intelligent control system. The system can realize rapid joint mode switching, improve task response and execution efficiency, autonomously switch between precision mode and high stiffness mode to meet different operation scene requirements, adopt non-contact magnetic transmission to avoid friction and wear and pollution, improve system service life and reliability, and realize modular design for convenient maintenance and upgrading.

The invention provides a double-locking control method for a hydraulic lifting gap bridge. According to the double-locking control method for the hydraulic lifting gap bridge, zero falling risk of the reversed loader pedestrian gap bridge under the condition that a hydraulic system fails or is powered off can be achieved, and the operation safety and the system stability are remarkably improved through a double-redundancy mechanism of hydraulic locking and electromagnetic locking and high-precision closed-loop control.

The application discloses a small generator and relates to the technical field of generators.The generator comprises a shell, double-end heat dissipation ventilation holes, a shieldable permanent magnet rotor and a temperature control and torque limiting protection assembly.A groove on the outer periphery of the rotor and an embedded paddle build through air flow when rotating, so that self-driven heat dissipation is realized.The temperature rise of a coil triggers a triode driven protection electromagnet through a thermistor, the torque transmission of a toothed disc friction coupling is adjusted, continuous derating is realized, and the generator can be stopped until zero coupling.The permanent magnet adjusting assembly is combined with an electromagnetic locking mechanism through an iron shell body-aluminum strip-permanent magnet combination, the magnetic field output is quickly cut off, and no induced voltage is generated during maintenance.

The utility model discloses an electromagnetic self-locking sliding block of a car carrier. The electromagnetic self-locking sliding block comprises a sliding way assembly, a lifting platform and a hydraulic lifting mechanism. The hydraulic lifting mechanism is connected with the lifting platform; the slide way assembly comprises a slide groove, a porous positioning plate, a slide block and an electromagnetic locking mechanism; the multi-hole positioning plate is arranged at the bottom of the sliding groove, a plurality of locking holes are evenly formed in the multi-hole positioning plate, the sliding block is arranged in the sliding groove, and the outer side of the sliding block is connected with an external lifting platform. The electromagnetic locking structure comprises an electromagnet, a locking block, a swing rod and a tension spring; the center of the swing rod is connected to the sliding block through a rotating shaft, the electromagnet is arranged on the sliding block, the locking block and the tension spring are arranged at the two ends of the swing rod respectively, the locking block is embedded into a locking hole of the porous positioning plate under the acting force of the tension spring, the sliding block is locked, the swing rod is attracted when the electromagnet is powered on, and the locking block is separated from the locking hole. Through the collaborative design of the electromagnet and the locking block, automatic locking is achieved during power failure, unlocking is achieved after power on, manual emergency operation is supported, and high efficiency, safety and reliability are achieved.