193results about How to "Realize unlocking" patented technology

The invention discloses an NFC (near field communications) based door lock control system and a method thereof. The NFC based door lock control system includes a lock body and a cloud server connected thereto. The lock body comprises a drive unit, an electronic unit and a power supply unit. The electronic unit includes: an NFC reading module, which is used for reading the NFC data signal sent by an external authorized NFC tag; a micro-processing module, which is used for receiving the data signal processed and converted by the NFC reading module and performing analytical processing; a wireless communication module, which is connected to the micro-processing module and undergoes data information sending and receiving with the cloud server; and a drive module, which is used for receiving the door lock open / close control signal generated by the micro-processing module and driving the drive unit. The power supply unit is respectively connected to the drive unit and the electronic unit and is used for supplying power. The NFC based door lock control system and the method provided by the invention solve the problems of complex operation, inconvenient carrying, low intelligence, low safety and other technical problems in traditional door locks in the prior art.

The invention discloses a two-stage spiral repeatable folding and unfolding locking mechanism of a solar wing. A two-stage spiral pair is utilized to transmit the rotation input by a power source so as to drive the left base plate and the right base plate of the solar wing to rotate, thereby realizing repeatable folding and unfolding of the solar wing. The self-locking function of the first-stage spiral pair is utilized to realize the locking of the final folding and unfolding positions of the solar wing, a ball locking position pin ensures the redundant and reliable position of the final folding and unfolding positions. The invention effectively utilizes joint space between the solar wing base plates, has compact and symmetrical structure, can realize high accuracy and high reliability movement easily, and can be applied to solar wings, space repeatable folding and unfolding mechanisms and ground repeatable unfolding mechanisms.

The invention discloses an actuator cylinder for a folding stay bar and a folding stay bar structure. The actuator cylinder is of a sleeve type structure, and an oil way is arranged on the side wall of a cylinder barrel; a bush which can bi-directionally move relative to a piston rod is arranged at one end of the piston rod, and an elastic element is arranged between the bush and the cylinder barrel. When a rodless cavity of the actuator cylinder has no oil pressure, the piston rod and the bush can completely extend out by the spring force; when the rodless cavity of the actuator cylinder applies pressure, the oil pressure overcomes the spring force to drive the piston rod and the bush to realize the withdrawal function of an eyebolt at the end part. The folding stay bar of the actuator cylinder structurally comprises the actuator cylinder. A rotary joint with an inlet and outlet oil way is integrated in an earhole in the end of the cylinder barrel, and a spring is integrated on the actuator cylinder, so that the structure is simplified, the layout space of a pipeline, the joint and the external spring is omitted, the system weight is reduced. The actuator cylinder can be applied to the folding stay bar structure with a narrow space, strict weight control and need for unfolding locking.

The invention discloses a high-compatibility sharing vehicle leasing system and a leasing method thereof. The high-compatibility sharing vehicle leasing system comprises stations and vehicles, wherein each station comprises a vehicle locking device; each vehicle is provided with an intelligent lock containing a wireless communication module and a multifunctional connector with a built-in electronic card; the electronic card of the multifunctional connector is internally provided with a unique code of the vehicle and an identification code of the intelligent lock; and the vehicle locking device is provided with a wireless communication module. According to the invention, each vehicle is provided with the intelligent lock, each station is provided with the wireless communication module, and the electronic card of the multifunctional connector of each vehicle is internally provided with the unique code of the vehicle and the identification code of the intelligent lock. When the vehicle is returned, the vehicle locking device acquires the identification code of the intelligent lock, establishes wireless communication connection with the intelligent lock and unlocks the intelligent lock, so that scattered sharing vehicle without a management function at present can be taken into a public vehicle system which is complete in management function and provided with stations, interworking and mutual borrowing are realized, and advantages of the sharing vehicles and the public vehicle system are given into full play.

The invention discloses an automatic buckle for connecting ropes. The automatic buckle comprises a clamping slot, a clamping pin, an unbuckling ring which is provided with a pull rod, a buckle lock pin, a first swing arm, a second swing arm, a first shaft, a second shaft, an electromagnet, an unbuckling component, and a first control circuit which is used for controlling the electromagnet. The automatic buckle disclosed by the invention can be matched with a monitoring system of an elevator so as to realize automatic connection and disconnection of the ropes on a rescuing barrier net.

The invention provides a lock cylinder and a lock comprising the same. The lock cylinder comprises a lock case, an outer lock container, an inner lock container, a rotary lug, a marble assembly and adisengagement and engagement assembly. The outer lock container is rotatably arranged in the lock case. The inner lock container is rotatably arranged in the outer lock container. The rotary lug is arranged at the second end of the inner lock container in a sleeving mode. The disengagement and engagement assembly comprises a linkage part. The linkage part is arranged on the inner lock container and can rotate along with the inner lock container. The linkage part moves in the radial direction of the inner lock container and has a clamping position clamped to the rotary lug and a disengagement position disengaged from the rotary lug. When the linkage part is located in the clamping position, the inner lock container drives the rotary lug to rotate through the linkage part. When the linkage part is located in the disengagement position, the outer lock container, the inner lock container and the linkage part idle synchronously relative to the lock case. Through the lock cylinder and the lock comprising the same, the problems that in the prior art, a marble lock cylinder does not have the idling function, a key or the lock cylinder is likely to be damaged due to violent twisting when the lock is forcedly opened through a wrong key, and accordingly, the lock provided with the marble lock cylinder cannot be used continuously and even is opened illegally.

The invention discloses an elevator car door lock device and an elevator. The elevator car door lock device comprises a lock hook mechanism, a lock bracket mechanism, a striking rod and an unlocking baffle, wherein the lock hook mechanism is used for being installed on a door machine plate and can rotate relative the door machine plate; the lock bracket mechanism and the striking rod are used for being installed on a door hanging plate, the lock bracket mechanism and the lock hook mechanism are matched in an interlocking mode, when a car door is closed, the striking rod is attached to the lock hook mechanism and abuts against the lock hook mechanism, the unlocking baffle is used for being installed on a door head plate, the unlocking baffle and the striking rod are used for being matched with the lock hook mechanism, and therefore the lock hook mechanism is in an unlocking state or a locking state. According to the elevator car door lock device and the elevator, unlocking or locking operation is independent of other door machine action systems and is suitable for developing a new door opening machine and additionally arranging a car door lock on an old door opening machine, and the elevator car door lock device is high in generality and long in service life.

The invention provides a fingerprint identification system. The fingerprint identification system comprises an induction unit, an executing unit and a power supply unit, wherein the induction unit comprises an acquisition sub-unit and a comparison sub-unit, the acquisition sub-unit is used for acquiring fingerprint information; the comparison sub-unit is used for comparing the acquired fingerprint information with pre-stored fingerprint information, and judging whether the fingerprint information is consistent or not; if a comparison result is that the fingerprint information is consistent, a power-on instruction is output; if the comparison result is that the fingerprint information is inconsistent, the power-on instruction is not output; the executing unit is used for controlling a door lock to be unlocked when the system is powered on; the power supply unit is connected with the executing unit, and is used for supplying power to the executing unit when receiving the power-on instruction and powering off after the door lock is controlled by the executing unit to be unlocked; when the power-on instruction is not received, the executing unit is powered off; the fingerprint identification system with the structure is provided with the power supply unit, so that the system can enter a low-power-consumption state more rapidly and the aim of saving power is realized.

The invention discloses an automatic opening-closing device of a mechanical hand, belongs to a mechanical self-locking mechanism, and is suitable for being matched with a hoisting mechanical hand to use, wherein the hoisting mechanical hand is commonly used in a dock, a warehouse and a construction industry. The automatic opening-closing device of the mechanical hand is composed of a motion sliding plate (6), a contact (5), a locking block (4), a central shaft (7) and a support plate (8). The locking block (4) is a rectangle block, wherein 110-135degree V-shaped grooves are symmetrically arranged on the short side of the locking block (4), a central hole is formed in the locking block (4), and the central shaft (7) and the support plate (8) are fixed on a fixed frame (2) of the mechanical hand. A rectangular hole is formed in the motion sliding plate (6), and the motion sliding plate (6) and the contact (5) are arranged on a movable frame (1) of the mechanical hand in parallel. Gravity of the motion portion is fully utilized to push the locking block to move in a rotating mode, so that the aim of automatic opening and closing of the mechanical hand in the process of operation is achieved. The automatic opening-closing device of the mechanical hand not only saves air sources or facilities, such as hydraulic stations, reduces worker labor, matched with the hoisting mechanical hand to use, high-efficiency, energy-saving, and safe and reliable, wherein the power sources or the facilities are needed by pneumatic and hydraulic driving.

The invention relates to key switches (15) for drive devices having key recognition means (30) for recognizing a key (13) having key bit (13.1) and having a key receptacle for inserting the key bit (13.1). The key recognition means (30) operate without contact and have corresponding scanning means (32) for scanning at least part of the key bit (13.1). The scanning means (32) deliver actual values of a key (13) inserted in a key accommodating means (62.2). Storage means (31) are provided in order to store comparison values of a key (13) in an initialization phase. An electronic comparator (33) is provided, which compares actual values to comparison values and causes a release if the actual values and comparison values agree.

The invention provides a manually controlled or electrically controlled door locking device which comprises an outer panel, an inner panel, a handle rotating shaft, a motor, a handle linkage block, a lock tongue and a lock tongue pushing sliding block, wherein a driving gear is arranged on a rotating shaft of the motor; a driven gear disc is arranged on the handle linkage block; a sliding block poke rod capable of poking the lock tongue pushing sliding block to move relative to the inner panel is arranged on the handle linkage block as well; and the lock tongue pushing sliding block is connected with the lock tongue. According to the door locking device, the motor can sequentially drive the driving gear, the driven gear disc, the sliding block poke rod, the lock tongue pushing sliding block and the lock tongue to achieve the telescopic motion of the lock tongue; the handle rotating shaft, the handle linkage block, the sliding block poke rod, the lock tongue pushing sliding block and the lock tongue can be sequentially driven to achieve the telescopic motion of the lock tongue through controlling a handle; and the door locking device has the advantages that the structure is simple, manual or electrical controlled double drive is achieved, the structure design is reasonable, the burglary prevention function is better, and the like.

The invention relates to an intelligent electronic lock, which comprises a mechanical lock and an electronic lock, wherein the electronic lock comprises a GPS (global positioning system) positioning module, a wireless communication module, an NFC unlocking module, a Bluetooth module, a warning system, a lock motor driving circuit and a power management module, wherein the GPS positioning module, the NFC unlocking module, the Bluetooth module and the warning system are respectively in two-way communication with the wireless communication module; the wireless communication module is also in two-way communication with the lock motor driving circuit and a control center server; the power management module simultaneously supplies power to the wireless communication module, the NFC unlocking module, the Bluetooth module, a six-axis sensor and a buzzer circuit; the control center server is in two-way communication with a hand-held terminal. The intelligent electronic lock has the advantages that the unlocking modes are diversified; the safety performance is good; the functions are diversified; the circuit is simple; electronic warning, real-time positioning and monitoring are combined into a whole; the warning and monitoring effects are achieved.

The invention discloses a method and a system for bidirectional authentication unlocking of an electronic dynamic-password lock. The method comprises steps as follows: a work order task is created at a background management center, and accordingly, work order data are generated; the background management center is connected with a mobile terminal, and the work order data are downloaded to the mobile terminal; two-people identity authentication and data interaction authentication are performed on the mobile terminal, and a disposable unlocking password is generated after authentication is successful; the electronic password lock is unlocked through the disposable unlocking password. The method and the system have the beneficial effects as follows: 1, the electronic dynamic-password lock can complete identity recognition and data interaction authentication in severe environments or in occasions without communication signals to be unlocked; 2, a two-people mode requiring mutual matching is adopted, identity recognition and data interaction authentication are realized after inputting on the mobile terminal, and the safety is improved; 3, the procedure requiring expenses due to communication can be completely eliminated, the long-term operation cost can be saved, the timeliness is high, and the work efficiency is high.

The invention discloses a remote control parking spot lock which comprises a parking spot blocking device and a control device, wherein the parking spot blocking device consists of a main arm and an auxiliary arm; one end of the main arm is connected with that of the auxiliary arm through a shaft; a main shaft seat is connected to the other end of the main arm through a shaft and provided with a bump; an auxiliary shaft seat is connected to the other end of the auxiliary arm through a shaft; the control device comprises a power supply, a controller connected with the power supply, a motor connected with the controller, and a lead screw; the lead screw and the motor are in gear transmission; a wireless signal receiver is arranged in the controller; the bump of the main shaft seat is matched with the groove of the lead screw. The remote control parking spot lock is a triangular parking spot lock, simple and firm in structure, stable and reliable; automatic locking or unlocking is realized through the remote controller.

The invention discloses a key-free turntable type cipher lock. The lock comprises a frame, wherein the frame is formed by a curve section or a plurality of vertical walls; an end cover is hinged on one side of the edge of the opening end of the frame; at least one section vertical to the vertical walls, of a baffle is arranged on the edges of the vertical walls of the frame; a step structure which is raised from the inner surface is arranged on the inner surface of the end cover; at least one cipher mechanism is arranged on the end cover, and comprises a knob, an upright column and a rotating catch; the position of the rotating catch corresponds to that of the baffle; when the knob is rotated to a specific position, the straight line edge of the rotating catch is flush with the edge of the end part of the baffle corresponding to the rotating catch so as to realize unlocking; and when the knob is rotated to other positions, part of the rotating catch is clamped with the lower surface of the baffle so as to realize locking. The lock has inventive design, can realize unlocking and locking without a key, cannot be destroyed easily, is convenient to use and easy to manufacture, has wide application field, and is suitable for popularization and use.

The invention discloses an automatic anti-theft lock. The automatic anti-theft lock comprises a telescopic sheet and locking devices, wherein the telescopic sheet is connected to the roller shutter end of a roller shutter door; the pair of locking devices are used for being matched with the side wall of a side rail of the roller shutter door, each locking device comprises a connecting sheet and a lock sheet which are connected together in a hinged mode, one end, far away from the corresponding lock sheet, of each connecting sheet is connected to the telescopic sheet in a hinged mode, one end, far away from the corresponding connecting sheet, of the lock sheet is connected to a bottom beam end clamp of the roller shutter door in a hinged mode, the actual length between two hinged-connection points in each locking device is larger than the linear distance between the two hinged-connection points, and one side, close to the side wall of a rail of one side of the roller shutter door, of one end, hinged to the corresponding connecting sheet, of each lock sheet is provided with a sharp corner. With the structure, not only can automatic opening and closing be achieved, deformation of each locking device is restorable, it is avoided that the roller shutter door can not be normally opened because the locking devices are blocked, meanwhile, the automatic anti-theft lock is simple in structure and low in manufacturing cost, and the using and maintaining cost of the roller shutter door is reduced. The invention further discloses the roller shutter door.

The invention relates to a door lock structure for an electric appliance and a cleaning machine applying the door lock structure. The requirement for electric control logic is low, when locking is needed, a lock rod moves downwards and abuts against an ejection piece to move downwards, and in the downward moving process of the ejection piece, the ejection piece drives a lock catch to rotate, so that the upper end of the lock catch is gradually matched with a lock hook and presses the lock hook downwards; a driving mechanism drives a limiting block to move towards the ejection piece and limit the position of the ejection piece, and locking is achieved; when unlocking is needed, the driving mechanism drives the limiting block to move to cancel position constraint on the ejection piece, and at the moment, the lock rod can be driven by a door body to move upwards to achieve unlocking; and the whole process is simple, reliable and convenient to implement.

The invention discloses a device for detecting the service life of a fire escape lock. The fire escape lock is arranged on a door to be detected. One side of the door to be detected is hinged to a door frame. The detection device includes a crank mechanism, a link mechanism and a sliding table mechanism. One end of the crank mechanism is hinged to the door frame, and the crank mechanism rotates coaxially with the door body. The other end of the crank mechanism is fixedly provided with a detection block. The sliding table mechanism comprises a lead screw sliding table and a detection fixing seat. The lead screw sliding table can be horizontally rotationally arranged on the detection fixing seat. One end of the link mechanism is hinged to the crank mechanism, and the other end of the link mechanism is fixed to the sliding table of the lead screw sliding table. The motor of the lead screw sliding table drives a lead screw to drive the sliding table to move forward. The sliding table drives the link mechanism to push the detection block of the crank mechanism in order to press down the fire escape lock to unlock the fire escape lock and open the door. The device of the invention can effectively and conveniently unlock the fire escape lock and open the fire escape door. The device of the invention has a simple structure, a stable and reliable implementation process, and high detection efficiency.

The invention relates to application of a two-dimension code lock in business management. The application comprises the following steps: a company manager firstly issues two-dimension code information configured at offices, park gates, elevators, personal cabinets and record reference rooms of a computer and simultaneously applies for an administrator account from a two-dimension code key data center to acquire administration authority, the working arrangement of each worker and room information used during the working are sent to the two-dimension code key data center, a worker acquires a two-dimension code key from the two-dimension code key data center when going to each office to work in each time period, the two-dimension code key only can be used for unlocking two-dimension code locks of the offices in which the work need to go in the time period, and therefore, the worker can remember the works needed to be done and the corresponding offices in the time period. The application has the characteristics that the use is convenient, the safety effect is good, and the business management efficiency is improved.

The invention discloses an electronic lock unlocking method based on finger vein recognition. The electronic lock unlocking method comprises the following steps that S1. fingerprint feature images of fingers are acquired, and the fingerprint feature images includes an image, a perspective vein image and a cuticle vein image; S2. the feature data of the fingerprint image, the perspective vein image and the cuticle vein image in the step S1 are extracted; S3. the feature data acquired in the step S2 are compared with pre-stored sample feature data, and the process jumps to step S4 when the two sets of data are consistent; S4. whether the fingers are living bodies is judged, and an authorization code is acquired if the fingers are living bodies; S5. an unlocking logic signal is analyzed according to the authorization code; and S6. unlocking is performed according to the unlocking logic signal. Unlocking is realized through verification of the fingerprint image, the perspective vein image and the cuticle vein image of a user so as to be secure and convenient.

The invention relates to a trunk, in particular to a vehicle roof trunk. According to the following technical scheme, the vehicle roof trunk is characterized by comprising a trunk body, a quick connecting piece arranged on the trunk body and a vehicle roof trunk lock; the trunk body comprises an upper trunk body and a lower trunk body; through holes are formed in the lower trunk body; the quick connecting piece is arranged at the positions of the through holes; and the lower ends of a first gripper and a second gripper of the quick connecting piece extend out of the through holes. By the adoption of the technical scheme, in order to overcome the defects existing in the prior art, the novel vehicle roof trunk which can be conveniently and quickly installed and is good in firmness is provided.

The invention discloses a fingerprint lock. The fingerprint lock comprises a lock body, a front cover plate is installed at the front side of the lock body, a lock core chamber is formed in the middleof the lock body, and a rear cover plate is installed at the rear side of the lock body. The fingerprint lock is scientific, reasonable and safe and convenient to use; a dustproof cover, non-slip sponge ribs, a fixing ring, fixing springs and a fixing rubber ring are arranged; through the dustproof cover, the situation that dust in air enters the fingerprint lock through a lock hole and the connection of devices in the fingerprint lock fails can be effectively prevented, and the service life of the fingerprint lock can be effectively prolonged; through the fixing ring, the dustproof cover isconveniently fixed and is prevented from slipping in the dustproof process; a moisture-proof chamber, a drying agent and drying holes are arranged; through the drying agent, the moisture in the air inthe fingerprint lock can be absorbed and effectively prevented from causing corrosion and rust on the precise devicse in the fingerprint lock, and the service life of the fingerprint lock can be effectively prolonged.

The invention provides an electronic lock. The electronic lock comprises a lock body. A dead bolt assembly, a latch bolt assembly and a circuit control assembly are arranged in the lock body. The latch bolt assembly comprises a latch bolt, a latch bolt deflecting plate and a latch bolt rotor base. The dead bolt assembly comprises a dead bolt and a dead bolt deflecting plate used for driving the dead bolt to stretch out of and stretch into the lock body. The dead bolt deflecting plate and the latch bolt deflecting plate are connected to the latch bolt rotor base in a sleeving mode. The dead bolt deflecting plate is arranged on the latch bolt rotor base in a linkage mode, and the latch bolt deflecting plate is movably arranged on the latch bolt rotor base. The dead bolt deflecting plate is provided with a linkage protruding block extending towards the latch bolt deflecting plate. The latch bolt deflecting plate abuts against the linkage protruding block to drive the dead bolt deflecting plate and then lock the dead bolt when swinging anticlockwise. The lock body further comprises a linkage plug pin assembly which is used for achieving disengagement and engagement between the dead bolt deflecting plate and latch bolt deflecting plate. The electronic lock is simpler in structure and more convenient to open and close.

The invention discloses a crystal boat comprising a main body portion and a block bar. The main body portion includes a pair of side walls that are arranged at an interval; a plurality of accommodation grooves that are arranged horizontally at intervals are respectively arranged at the pair of side walls; and two ends of a wafer are respectively accommodated into the accommodation grooves of the corresponding side walls and can slide along the accommodation grooves. An installation groove perpendicular to the accommodation grooves is arranged at one side wall and the block bar is installed in the installation groove; and a plurality of slotting units corresponding to the accommodation grooves are arranged at the block bar. The block bar can move between a starting position and a locking position; at the starting position, the slotting units are communicated with the accommodation grooves and the wafer can pass by; and at the locking position, the slotting units and the accommodation grooves are in a staggered mode and thus the wafer can not pass by. In addition, the crystal boat also includes an automatic locking assembly installed at the main body portion; and the automatic locking assembly drives the block bar to be at the locking position. According to the invention, the crystal boat can be locked automatically, thereby preventing the wafer from slipping down; and less particles are produced.

The invention relates to an electronic lock. The electronic lock comprises a lock cylinder and a lock catch; a lock catch permanent magnet is mounted at the cylindrical bottom part of the lock catch; balls are uniformly circumferentially distributed on the cylindrical inner wall of the lock catch, wherein each ball is composed of a permanent magnet; the cylindrical lock directly faces the lock catch, comprising a lock cylinder permanent magnet positioned at the bottom part of the lock cylinder, and a spring bolt which can freely slide along the inner wall of the lock cylinder; the lock cylinder permanent magnet and the lock catch permanent magnet are homopolar and opposite to each other; the spring bolt is prepared from electromagnet; one end of the spring bolt, close to the lock cylinder permanent magnet and the lock cylinder permanent magnet are heterospolar and are attracted with each other when a lock is in an opening state; two conductive chutes which are parallel to the axis of the lock cylinder are formed in the cylindrical inner wall of the lock cylinder; the spring bolt is also connected in series with a switch; a lock slot is formed in the sidewall of the spring bolt. The electronic lock has an effective antitheft function, and can be automatically opened when a vehicle is started; the vehicle body can be automatically locked after the key is drawn off; therefore, the use is safe and convenient.

The invention discloses a push and pull lock. The lock comprises a lock shell and a push and pull handle arranged on the lock shell. a push and pull mechanism and a double lock mechanism used for locking the push and pull mechanism are arranged in the lock shell, the push and pull mechanism comprises a push and pull sliding plate, two ends of the push and pull sliding plate are each provided witha push and pull gear assembly, one end of a push and pull rack is connected with the push and pull handle, the other end of the push and pull rack is engaged with a driving gear, the driving gear is engaged with a driven gear, the two ends of the push and pull sliding plate are each provided with multiple evenly-distributed gear holes in a spaced manner, the gear holes are matched with the drivengear, two rotating racks which are arranged in a spaced manner are arranged on the push and pull sliding plate, a square rod rotating shaft is arranged between the two transmission racks, and is engaged with the transmission racks, when the push and pull handle moves front and back, the square rod rotating shaft can be driven to rotate, a spring bolt driven to stretch out and draw back, unlockingor locking can be achieved, the structure is simple, and meanwhile, the lock can be suitable for arranging manners of different positions of doors and door frames.

A sliding door lock for a half-height safety door comprises a lock hook, an installation plate assembly, a lock plate assembly, a hand unlocking assembly and an automatic unlocking assembly. The installation plate assembly comprises an installation plate, lock plate support shafts and a lock hook support shaft, wherein the lock plate support shafts and the lock hook support shaft are fixed on the installation plate; and the lock plate assembly comprises a lock plate and a lock shaft which is fixed on the lock plate, a plurality of long vertical circular holes are arranged on the lock plate, the lock plate support shafts are inserted into the plurality of long vertical circular holes, the lock plate can freely and vertically move by means of the support of the lock plate support shafts, and the lock shaft penetrate through a long square hole on the installation plate to be matched with the lock hook which is installed on a lock hook rotation shaft and can rotate around the lock hook rotation shaft. During locking, the lock shaft is placed on the lock hook to limit the lock shaft to move, and during unlocking, the lock hook rotates while the lock shaft vertically drops; and the automatic unlocking assembly is mainly composed of an electromagnet and an unlocking shaft, wherein the unlocking shaft is fixed on a sliding shaft of the electromagnet and moves with the movement of the sliding shaft of the electromagnet, and the unlocking shaft is fixed on the upper portion of the lock plate.