1011 results about "Electromagnetic lock" patented technology

The invention relates to the technical field of digital information transmission, in particular to an information security transmission method of a stadium security platform based on the Internet of Things. The method comprises the following steps: integrating a TPM 2.0 security chip to an Internet of Things sensing layer, and applying the TPM 2.0 security chip to gate equipment of a stadium; an electromagnetic locking / control device and a forced synchronization mechanism are arranged on the gate equipment, and physical locking control is carried out on the gate equipment; standardized identity information data are collected through an RFID identity verifier in the gate device; and controlling an electromagnetic locking / control device and a forced synchronization mechanism based on the standardized identity information data to generate a gate control instruction. According to the stadium security and protection platform, an efficient, safe and reliable stadium security and protection platform is constructed by integrating a TPM 2.0 chip, electromagnetic locking control, RFID identity verification, dynamic micro-isolation and a block chain 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 utility model relates to the field of circuit breakers, in particular to an electromagnetic locking molded case circuit breaker. Comprising a housing including a mounting seat and a cover plate; an electromagnet is arranged in the first side wall of the mounting seat and is electrically connected with the contact system; the cover plate comprises a front panel and a second side wall; a magnetic attraction sliding part sliding front and back is installed in the second side wall, a first sliding abutting part is arranged at the front end of the magnetic attraction sliding part, and a first inclined face is arranged on the first sliding abutting part. A locking rod is arranged in the front panel, a reset spring is arranged on the locking rod, a second sliding abutting portion abutting against the first inclined face is arranged on the rear side of the locking rod, a second inclined face is arranged on the second sliding abutting portion, and the second inclined face abuts against the first inclined face. The operating mechanism comprises a release handle, and a locking hole matched with the locking rod is formed in the release handle; the locking rod prevents the release handle from rotating when external force is received, and the electromagnet attracts the magnetic attraction sliding part to achieve reinforced fixation between the installation base and the cover plate.

Disclosed is a storage cabinet. An embodiment has one or more shelves, one or more doors for enclosing the cabinet, and an electromagnetic lock for locking the door or doors. The shelves have one or more cameras, an opened- or closed-door state sensor, and a weight sensor arranged to measure weight of products placed on said shelves. An electronic data processor carries out a machine learning computer vision method for processing data received from cameras and sensors to identify products removed from said shelves. The processor detects when a cabinet door is in an open state, acquires image and weight data from the associated camera and weight sensor. When a weight change at a shelf is detected, processing of image data acquired including when the weight change occurred occurs, with said machine learning computer vision method.

The invention discloses a small generator, and relates to the technical field of generators. The motor comprises a shell, double-end heat dissipation ventilation holes, a permanent magnet shielding rotor and a temperature control torsion limiting protection assembly. The grooves in the periphery of the rotor and the built-in paddles construct through airflow during rotation, so that self-dispersing heat dissipation is realized; coil temperature rise triggers a triode through a thermistor to drive a protection electromagnet, torque transmission of a fluted disc friction coupling is adjusted, and continuous derating can be achieved until zero-coupling shutdown is achieved; the permanent magnet adjusting assembly rapidly cuts off magnetic field output through an iron shell-aluminum strip-permanent magnet combination and an electromagnetic locking mechanism, and it is guaranteed that no induced voltage exists in the overhaul period.

The present invention discloses an electromechanical brake parking mechanism and a control method, belonging to the field of vehicle braking. It includes a reduction motor and a brake caliper. A locking disc is fixed on the motor shaft of the reduction motor. An electromagnetic locking component is arranged inside the motor housing of the reduction motor and corresponds to the position of the locking disc. The locking head of the electromagnetic locking component corresponds to the locking hole opened on the locking disc. A parking position sensor is arranged inside the motor housing, and a magnet cooperating with the parking position sensor is fixed on the end face side of the locking disc; A locking position sensor is also arranged inside the motor housing to detect the forward and backward movements of the locking head. Both the locking position sensor and the parking position sensor are electrically connected to the controller, and the controller is electrically connected to the reduction motor. By adopting the above-mentioned electromechanical brake parking mechanism and control method, it has the advantages of more reliable control, shorter parking time, short noise duration, etc., making the maintenance cost and use cost of the electromechanical brake lower and safer.

The invention discloses an on-orbit control method based on butt joint of a mechanical arm and an electromagnet, which comprises the following steps: acquiring an initial pose of a target spacecraft through a sensor, and planning a motion track of the mechanical arm; when the tail end of the mechanical arm is close to a target by a preset distance, an electromagnetic docking module is activated to apply non-contact adsorption force to the surface of the target; a cascade force / position hybrid control algorithm is adopted to adjust the pose of the tail end of the mechanical arm, so that the electromagnetic butt joint surface is aligned with the target contact point; when the butt joint face error is smaller than a threshold value, the electromagnetic module is switched to a rigid locking mode, and rigid connection between the mechanical arm and the target is completed; and executing a task through the mechanical arm, and releasing electromagnetic locking and separating after the task is completed. The active electromagnetic module is integrated at the tail end of the mechanical arm, flexible adsorption and high-precision rigid docking of a non-cooperative target are achieved in combination with a multi-mode sensing and cascade predictive control algorithm, and the robot has the advantages of being high in docking efficiency, low in energy consumption and high in adaptability and is suitable for on-orbit service tasks in a complex space environment.

The present disclosure relates to the field of transportation technology, and in particular to an unmanned tractor. The unmanned tractor is used to tow a trailer, and includes a tractor body and a traction device. The traction device includes a lifting mechanism and a traction mechanism arranged on the lifting mechanism. The traction mechanism includes a slider slidably connected to the lifting mechanism, an electromagnetic lock fixedly connected to the slider, a traction ring fixedly connected to the electromagnetic lock, and a traction buckle installed on the traction ring; the electromagnetic lock has a retractable lock tongue, which is used to limit the free end of the traction buckle when the lock tongue is extended to limit the downward rotation of the traction buckle; the traction ring has an inner area for the trailer ring to pass through, the trailer ring can push the traction buckle upward, and the free end of the traction buckle is sleeved on the traction buckle. The unmanned tractor disclosed in the present disclosure can realize the automatic traction function of the unmanned tractor on the trailer without modifying the existing trailer, and the unmanned tractor is suitable for docking with mops in different states.

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 discloses an electronic mechanical brake parking mechanism and a control method, and belongs to the field of vehicle braking, the electronic mechanical brake parking mechanism comprises a gear motor and braking calipers, a locking disc is fixed on a motor shaft of the gear motor, and an electromagnetic locking assembly is arranged at the position, corresponding to the locking disc, in a motor shell of the gear motor; a locking head of the electromagnetic locking assembly corresponds to a locking hole formed in the locking disc, a parking position sensor is arranged in the motor shell, and a magnet matched with the parking position sensor is fixed to the end face side of the locking disc. A locking position sensor is further arranged in the motor shell and used for detecting advancing and retreating actions of the locking head, the locking position sensor and the parking position sensor are both electrically connected with the controller, and the controller is electrically connected with the speed reduction motor. The electronic mechanical brake parking mechanism and the control method have the advantages of more reliable control, shorter parking time, short noise duration and the like, so that the electronic mechanical brake maintenance cost and the use cost are lower, and the electronic mechanical brake parking mechanism is safer.

The invention discloses a non-stage-difference side mode system of a multi-size bridge deck slab and a self-adaptive control method of the non-stage-difference side mode system. The non-stage-difference side mode system comprises an electromagnetic locking bottom mode, a non-stage-difference side mode, an Internet of Things module, a data transmission module, a computer vision module, an intelligent decision-making module and an electromagnetic control module. Through electromagnetic induction matching between the electromagnetic locking bottom die and the step-free side die, traction, positioning and locking of the side die are achieved, so that bridge decks of multiple sizes are adapted in a step-free mode, and the flexibility of template adjustment, the production efficiency and the installation precision are improved; the self-adaptive control method comprises the steps of appearance judgment of the non-stage-difference side formwork, non-stage-difference in-place of the side formwork, electromagnetic locking of the side formwork, judgment and control of the concrete forming stage and dismantling of the non-stage-difference side formwork. Electromagnetic attraction force or electromagnetic repulsive force needed during traction, in-position and locking of the side die is determined through the neural network technology, and then the current direction and current intensity applied to all the electromagnetic induction coils are determined.

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 running-in and friction torque automatic test system and method, and relates to the field of electromagnetic lock testing, and the system comprises a test bench which comprises a fixed base, an electromagnetic lock, a first coupling, a torque and rotating speed sensor, a second coupling and a servo motor. An electromagnetic lock fixing assembly and a servo motor fixing assembly are fixed on the fixed base, a stator part of the servo motor is fixedly connected to the servo motor fixing assembly, and a stator part of the electromagnetic lock is fixedly connected to the electromagnetic lock fixing assembly; a rotor part of the electromagnetic lock is fixedly connected with the torque and rotating speed sensor through a first coupler, and the torque and rotating speed sensor is fixedly connected with an output shaft of the servo motor through a second coupler. The problem that an existing electromagnetic lock friction torque testing system cannot meet the requirements for accuracy and efficiency of electromagnetic lock friction torque measurement is solved.

The present disclosure relates to the field of signal acquisition, and in particular, to a system and method for high-density electromyographic signal synchronous acquisition. In the system, a signal acquisition module and a base station are electrically connected via a pogo pin connector and are mechanically connected via an electromagnetic lock. The pogo pin connector comprises various communication protocols and functional ports and supports various synchronous operations. Module charging, data export, state reading, parameter configuration, firmware upgrading, time synchronization, and other functions can be completed by simply inserting the module into the base station, featuring ease to use and compactness. The electromagnetic lock locks the module inserted into the base station to ensure reliable communication between the module and the base station and the safety and integrity of data files. The method is automatically implemented in the condition that the module is inserted into the base station, so as to ensure the real-time synchronization of all modules inserted in the base station with the base station. The electromyographic signal acquisition process does not depend on wireless networks or limit the scene of use to areas with network coverage, thus reducing the wireless connection power consumption, increasing the cost-efficiency, and greatly improving the synchronization reliability.

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 utility model provides an electromagnetic lock with an emergency unlocking function, and relates to the technical field of locks. Comprising a shell, an electromagnetic assembly, a lock hook and an emergency assembly, the electromagnetic assembly, the lock hook and the emergency assembly are arranged in the shell, the lock hook is hinged to the interior of the shell, one end of the lock hook is provided with a clamping hook part suitable for buckling a lock catch, and the electromagnetic assembly is connected with the other end of the lock hook and suitable for driving the lock hook to rotate on the shell; further, the clamping hook part is controlled to buckle or loosen the lock catch; the emergency assembly comprises an emergency shifting piece and a positioning pin, and the emergency key is configured to be capable of releasing limitation of the positioning pin on the emergency shifting piece after the emergency shifting piece is inserted and driving the emergency shifting piece to rotate so as to control the clamping hook part of the lock hook to loosen the lock catch. According to the scheme, emergency unlocking can be achieved when the electromagnetic assembly is powered off, the structure is simple, and unlocking is stable.

The utility model discloses a vehicle-mounted storage box with an NFC (near field communication) function, a groove for storing the storage box is arranged on a vehicle, the storage box is placed in the groove, the storage box consists of a box body and a box cover, an electromagnetic lock for locking the box cover is arranged on the box body, an NFC unit, a power supply unit and a processor unit are embedded in the box body, and the NFC unit, the power supply unit and the processor unit are embedded in the box body. The power supply unit supplies power to the electromagnetic lock and the processor unit, the NFC unit is connected with the electromagnetic lock and transmits an identification signal as an unlocking signal to the processor unit, and the processor unit is connected with the electromagnetic lock and outputs an unlocking or locking signal to the electromagnetic lock. By means of the storage box, the problems that according to an existing article package, article information reading is limited, the transfer efficiency is low, the box body protection performance is poor, the integration performance with goods is weak, and the repeated use capacity is poor can be solved.

The invention belongs to the technical field of door fence processing and production, and discloses an intelligent door fence which comprises an openable door fence body. The electromagnetic lock is used for controlling the locking of the door fence; the controller is electrically connected with the electromagnetic lock and controls the magnetic on-off of the electromagnetic lock; the voice control module is electrically connected with the controller, and the controller receives a signal sent by the voice control module and controls opening and closing of a door fence; and the voice control module is provided with a switch for controlling the on-off of the voice control module. Opening and closing of the door fence body are achieved through voice, and a switch for controlling locking of the voice control module can start or close the voice control module. When the voice control module is closed, the door can only be opened in other modes, so that the door is prevented from being opened by mistake due to the fact that children imitate adults to send door opening instructions; and the mobile terminal is electrically connected with the controller to remotely control opening and closing of the door fence body. By arranging the electromagnetic lock and the controller which are matched with each other, remote door opening can be achieved through the mobile terminal, and operation convenience 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 utility model discloses a UPS (Uninterrupted Power Supply) starting device and an energy storage device. The UPS starting device comprises a UPS body, the starting mechanism is used for externally applying external force to control the UPS body to be started and stopped; and the fixing device is used for limiting and fixing the UPS body and the starting mechanism. The starting mechanism comprises an electromagnetic lock and a key switch used for controlling the electromagnetic lock, the electromagnetic lock comprises a lock body and a spring bolt, and when the key switch is pressed, the spring bolt extends out of the lock body to press a control button on the surface of a shell of the UPS body, so that the UPS body is started or closed. By adding the electromagnetic lock device, the starting of the UPS body is not influenced by the structural layout due to the position problem of a switch key of the UPS body, and the UPS body can be placed at a redundant space position in the energy storage box, so that the problem of front space layout of electrical parts of the energy storage equipment is reduced.

The electromagnetic lock convenient to repair comprises a lock body and a mounting plate, a clamping groove is formed in the lower end face of the mounting plate, a clamping block matched with the clamping groove is arranged on the upper end face of the lock body, mounting holes communicated with the clamping groove are symmetrically formed in the front end face of the mounting plate, fixing assemblies are arranged in the mounting holes, and the fixing assemblies are arranged in the mounting holes. The lock body is provided with a clamping groove, a clamping block and a fixing assembly, the front end face of the clamping block is provided with a fixing hole matched with the fixing assembly, the front end face of the lock body is provided with an inwards-concave equipment bin, a sealing plate is detachably installed in the equipment bin, and the left end face of the lock body is provided with a through hole communicated with the equipment bin. The fixing assembly can be clamped into the fixing hole, the lock body can be conveniently mounted and dismounted, the mounting and dismounting efficiency is improved, during maintenance, the lock body can be conveniently dismounted, the lock body is maintained or replaced, and the convenience during maintenance is improved.

The invention relates to the technical field of electric power engineering, in particular to a tool carrying platform based on unmanned aerial vehicle overhead cable hot-line work and a working method.The tool carrying platform comprises a mounting frame and a suspension frame which are connected through an electromagnetic lock, the mounting frame is located on the upper top face of a work tool, and the suspension frame is connected with an unmanned aerial vehicle through an insulating rope; a hanging ring connected with the tail end of the insulating rope extends into a U-shaped groove of the electromagnetic lock; the electromagnetic lock comprises a mounting plate with the surface provided with a positioning column and a limiting rib, the positioning column is sleeved with a torsional spring and a locking plate, the limiting rib is fixedly connected with an electromagnet, and the electromagnet is connected with the limiting column through a spring. The locking plate comprises a rotating part connected to the positioning column in a sleeving mode, and the rotating part is provided with a long spring bolt, a short spring bolt and an arc-shaped protrusion arranged in the circumferential direction, wherein the long spring bolt and the short spring bolt are arranged side by side. When the locking plate rotates to a set angle, locking is achieved, in the locking state, the long spring bolt is located at the groove bottom of the U-shaped groove, and the short spring bolt penetrates through the hanging ring and is located in the space above the long spring bolt; an included angle area formed by the edge of the bulge and the surface of the rotating part is clamped with the limiting column.

According to the environment-friendly cabinet circuit breaker and the operation method thereof, the arc extinguish chamber is arranged in the circuit breaker shell, the arc extinguish chamber support and the multiple arc extinguish grid pieces arranged in parallel are arranged in the arc extinguish chamber, and the arc extinguish efficiency is effectively improved; the circuit breaker linkage mechanism is arranged on the front side of the arc extinguish chamber and comprises a contact seat, a moving contact and a static contact, and the moving contact can linearly move relative to the contact seat to realize on-off control of a circuit; the conducting rod and the wiring terminal strip are fastened and connected through interference fit and bolts, so that stable current transmission is ensured; the opening and closing mechanism is composed of an opening and closing electromagnet, a closing spring, an opening spring and a linkage part, and rapid and reliable opening and closing operation of the circuit breaker is achieved. In addition, multiple protection devices including a release, an under-voltage release and an electromagnetic lock catch are arranged, so that the system safety is improved; the arc extinguishing device is compact in structure, reliable in operation and good in arc extinguishing effect, has good environmental protection property, safety and intelligent control capability, and is suitable for application requirements on high-performance power distribution equipment in a modern electric power system.

The utility model belongs to the field of switch cabinets, in particular to a high-voltage switch cabinet handcart locking front lower door interlocking device, which comprises a cabinet body, a front middle door and a front lower door, a lock catch is arranged on the inner side of the front middle door, a chassis truck is arranged on the cabinet body close to the front middle door, and the chassis truck is provided with a chassis truck operation hole and a door interlocking hook. The door interlocking hook can be controlled to be clamped with the lock catch through the chassis operation hole, the front middle door is locked through mechanical interlocking, an electromagnetic lock is replaced by the mechanical interlocking, and the reliability of the product is improved.

The utility model relates to the technical field of burr polishing of stamping parts, in particular to a burr polishing device for stamping parts, which comprises an operation table, a polishing device and a clamping table are arranged on the operation table, a bearing seat and an adjusting motor are arranged on the clamping table, an adjusting plate is arranged at the output end of the adjusting motor, and a plurality of burrs are arranged on the adjusting plate. A driving motor is arranged at the top end of the adjusting plate, an adjusting column is arranged between the output end of the driving motor and the adjusting plate, a rectangular groove is formed in the bottom end of the adjusting column, a rectangular column is arranged on the rectangular groove, a limiting groove is formed in the top end of the rectangular groove, and a limiting plate is arranged between the limiting groove and the rectangular column. A limiting groove is formed in the limiting plate, an elastic component is arranged between the limiting plate and the limiting groove, an iron plate is arranged on one side of the limiting groove, an electromagnetic lock is arranged on the limiting plate, and through cooperation of the electromagnetic lock and the elastic component, rapid and automatic clamping and fixing of a stamping part are achieved, and the operation efficiency is greatly improved.

The present disclosure provides a car glove box, comprising: a glove box body, comprising: a storage box and a cover plate; a fingerprint sensor, fixed on the center console of the car; the fingerprint sensor comprises: a fingerprint acquisition module and a first wireless communication module; at least one electromagnetic lock, fixed on the cover plate or the storage box, the cover plate and the storage box are unlocked and locked by the electromagnetic lock; the electromagnetic lock comprises: a second wireless communication module, a control panel, an electromagnet, a power supply and a switch capable of controlling the on-off between the power supply and the electromagnetic feature, the control panel is used to obtain the fingerprint acquisition information sent by the fingerprint acquisition module through the first wireless communication module through the second wireless communication module, and match the acquired fingerprint acquisition information with the fingerprint comparison information in the preset fingerprint library, and control the on-off of the switch according to the matching result to control the electromagnetic lock to unlock or lock. The technical solution disclosed in the present disclosure can effectively protect the safety of items in the glove box of the car.

A door opening system for an animal enclosure is provided. The door opening system can include a latch mechanism to hold a door of the animal enclosure in a closed position and an opening mechanism to move the door to an open position in response to the latch mechanism releasing the hold on the door. The latch mechanism can incorporate an electromagnetic locking mechanism that is controlled by a user interface device at the enclosure or by a command from a remote device wirelessly connected to a control module for the electromagnetic locking mechanism by a network. The opening mechanism can include one or more springs that can move the door from the closed position to the open position.