CN210422194U

CN210422194U - Lockset with emergency unlocking structure

Info

Publication number: CN210422194U
Application number: CN201920349959.4U
Authority: CN
Inventors: 马宗献; 麦政华
Original assignee: Cao Hantian
Current assignee: Guangdong Archie Hardware Co ltd
Priority date: 2019-03-19
Filing date: 2019-03-19
Publication date: 2020-04-28
Anticipated expiration: 2029-03-19

Abstract

The lockset with the emergency unlocking structure comprises a lock body, wherein the lock body comprises a lock shell, and is characterized in that a square bolt component for locking, a first shifting arm for driving the square bolt component to realize locking and unlocking and an electric mechanism for driving the first shifting arm to rotate are arranged in the lock shell, and the first shifting arm drives the square bolt component to lock or unlock in a shifting mode; the second shifting arm is rotatably arranged in the lock shell or directly connected to the manual driving mechanism, and when the manual driving mechanism is combined to the lock body, the second shifting arm can be driven by the manual driving mechanism to drive the square bolt assembly to be locked or unlocked in a shifting mode.

Description

Lockset with emergency unlocking structure

Technical Field

The invention relates to a lock, in particular to a lock which utilizes an electric mode as a normal unlocking and locking structure and a manual (key or/and handle) mode as a standby unlocking structure.

Background

The existing intelligent lock, especially the lock adopting electric unlocking and locking, needs to be provided with a standby unlocking and locking means from the safety angle. Mechanical key unlocking is generally widely used as a conventional alternative to intelligent electric locks. Namely, the electric unlocking is adopted in the normal unlocking and locking work, and the mechanical key is adopted to unlock the door under the abnormal emergency conditions of failure, insufficient electric quantity and the like of the electric unlocking mechanism. But the electric lock body structure with different structures adopts different standby unlocking means and methods.

For example, patent application No. 201320548219.6 entitled "a TM card fingerprint intelligent lock" discloses a TM card fingerprint intelligent lock, which includes an electric control lock body, an indoor lock cover plate, an outdoor lock cover plate, and a controller for controlling a motor driving device, wherein the outdoor lock cover plate is provided with a fingerprint identifier and a TM card sensing port; the controller comprises a main controller, a standby controller and a power supply, and the main controller and the standby controller are respectively connected with a motor driving device for driving the electric control lock; the fingerprint recognizer and the TM card induction port are respectively connected with the main controller and the standby controller, and information collected by the fingerprint recognizer and the TM card induction port is communicated with the main controller and the standby controller. This solution discloses a solution for driving the motor drive in a double circuit, which is actually a 1+1=2 superposition solution, which, although it is possible to greatly reduce the probability of failure, still does not disclose an emergency unlocking solution, or a solution that does not disclose how to activate other backup solutions, such as a mechanical key, after both circuits have been damaged.

For example, patent application No. 201410172102.1 entitled "electronic lock with standby system" discloses an electronic lock with standby system, which includes an input module, a control module, a driving module, a power supply module, a self-checking module and a standby module; the standby module mainly comprises a mechanical lock cylinder body, a main marble, a mechanical lock core, a mechanical lock key hole, a marble contact, a charging coil iron core, a charging coil, a marble slideway, a discharging coil iron core, a standby circuit board, a power storage capacitor, a charging signal line and a discharging signal line. The charging coil, the discharging coil and the storage capacitor can control the position of the main marble when the electronic lock is normal or in failure, and the standby module is enabled or disabled. This solution mainly discloses an improved structure of the back-up mechanical cylinder itself, but does not disclose how to deal with the problem of coordination with the normal unlocking and locking mechanism.

For example, patent application number is 201710100933.1, the name is "an intelligent lock"'s technical scheme, discloses an intelligent lock, including outer handle, outer handle seat, lock body, interior handle seat and the interior handle that connects gradually, still include power strip, mainboard, motor, actuating mechanism and power, the lock body is including the lock core and the spring bolt of mutual contact, be provided with the expansion board on the mainboard, be connected with the switching on the power strip and pull out the button, motor, power strip and mainboard all are connected with the power, mainboard and expansion board all are connected with the motor, the expansion board is pulled out the button through the switching and is connected with the power, the motor passes through actuating mechanism and is connected with the lock core. This solution, which is actually a solution different from the above-mentioned patent application with the application number 201320548219.6 but substantially the same as the solution, emphasizes the use of a 1+1=2 alternative electric circuit solution, but still does not disclose how to cooperate with a mechanical key for alternative use.

Disclosure of Invention

In view of the above problems, it is obvious that not only the problem of using an electronic backup drive or control circuit with 1+1=2 as in the prior art, but also the problem of improving only the backup manual drive part, must first be solved how to coordinate the electric drive part and the manual drive part so that locking and unlocking can be achieved by the manual drive part at any time; secondly, how to realize the standby unlocking to improve the safety is comprehensively considered, and the standby scheme cannot become a new potential safety hazard while the standby scheme plays a role.

According to the above object, the invention provides a lock with an emergency unlocking structure, which comprises a lock body, wherein the lock body comprises a lock shell, and is characterized in that an oblique bolt, a square bolt component for locking, a first toggle arm for driving the square bolt component to realize locking and unlocking, and an electric mechanism for driving the first toggle arm to rotate are arranged in the lock shell, and the first toggle arm drives the square bolt component to lock or unlock in a toggle manner; the second shifting arm is rotatably arranged in the lock shell or directly connected to the manual driving mechanism, and when the manual driving mechanism is combined with the lock body, the second shifting arm can be driven by the manual driving mechanism to drive the square tongue component to be locked or unlocked in a shifting manner; the electric mechanism drives the first shifting arm to complete locking or unlocking and further drives the first shifting arm to be separated from the square bolt assembly and enable the first shifting arm to stay at a safe position, the first shifting arm stays at the safe position and enables the first shifting arm to avoid the square bolt assembly, and the manual driving mechanism is used for utilizing the first shifting arm to stay at the safe position and driving the square bolt assembly to move through the second shifting arm so as to lock or unlock.

The manual driving mechanism is another set of unlocking and locking standby mechanism which is arranged on the lock and is completely separated from the electric mechanism, and the manual driving mechanism comprises an operating mechanism which has safety and can not be operated by a bad person at will, such as a mechanical lock cylinder and the like which can be unlocked by means of a key. Because the second shifting arm is controlled by the manual driving mechanism, the position of the second shifting arm can be adjusted manually at will, and therefore the second shifting arm can be adjusted manually to leave the square bolt assembly after unlocking and locking are completed without forming an obstacle to the movement of the square bolt assembly.

Wherein the second toggle arm is rotatably disposed in the lock housing or directly connected to the manual drive mechanism, which feature defines two alternative arrangements of the second toggle arm, the first arrangement being that the second toggle arm is rotatably disposed in the lock housing, for example, directly rotatably disposed on a rotation axis of the lock housing; in a second layout, the second toggle arm is directly connected to the manual driving mechanism, for example, when the manual driving mechanism is a mechanical cylinder, the second toggle arm is directly connected to an output shaft of the mechanical cylinder. When the second layout mode is applied, the second toggle arm and the manual driving mechanism are combined into a functional module which can be detached from the lock body under a general condition, and the manual driving mechanism needs to be combined to the lock body firstly under a specific application scene.

The safety position is an area where the first shifting arm further moves to be separated from the square bolt assembly and then stops after driving the square bolt assembly to complete locking or unlocking, and the area does not prevent the square bolt assembly from successfully moving axially under the driving of the second shifting arm.

The lock is generally provided with two lock tongues of a dead bolt assembly and a latch bolt assembly. The tongue assembly generally includes a tongue support plate and a tongue head disposed at a front end of the tongue assembly support plate. In general lock designs, the latch bolt is generally called as a wind-proof bolt and is mainly used for temporarily locking a door leaf, the latch bolt mechanism generally has a self-resetting function, so that clamping stagnation of a shifting arm cannot be formed, and therefore the technical scheme mainly aims to solve the problem of the square bolt assembly. According to the conventional design scheme, the dead bolt assembly generally further comprises a clamping plate for clamping the dead bolt assembly, the clamping plate is slidably arranged in the lock body and used for preventing the dead bolt assembly from being axially pressed back by external force after being extended out, and the poking arm generally pushes the clamping plate to move to release clamping of the dead bolt assembly when the dead bolt assembly is poked to move. The invention is not further described since these are conventional designs and are not the subject matter of the invention.

According to the technical scheme, compared with the prior art, the invention has the beneficial technical effects that: in normal operation, the electric mechanism can drive the first shifting arm to complete locking or unlocking, and further drive the first shifting arm to be separated from the square tongue assembly and stay at a safe position, so that a preparation condition is provided for the second shifting arm to drive the square tongue assembly to move at any time. The first shifting arm in the safety position is not only separated from the dead bolt assembly, but also moves away from the moving path of the dead bolt assembly, at the moment, the first shifting arm cannot be an obstacle to the movement of the dead bolt assembly, and the dead bolt assembly can be smoothly locked or unlocked through the movement under the driving of the second shifting arm.

The lock comprises a lock shell, an electric mechanism, an inner circuit board, an inner controller, a motor main driver and a control circuit, wherein the lock shell is internally provided with the inner circuit board; the electric lock further comprises an outer lock panel and an inner lock panel, wherein an outer circuit board is further arranged on the outer lock panel or the inner lock panel, an outer controller and a motor standby driver in signal connection with the outer controller are arranged on the outer circuit board, the motor standby driver also controls and drives the electric mechanism, and the inner controller is in signal connection with the outer controller; an outer locking button is arranged on the outer locking panel and is in signal connection with the outer controller; the outer locking button is used for controlling and driving the electric mechanism to act through the inner controller and the motor main driver so as to implement forced locking outside a door according to a starting instruction of the outer locking button when the outer locking button is started, or controlling and driving the electric mechanism to act through the motor standby driver directly when the inner circuit board fails so as to implement forced locking outside the door.

Wherein the outer circuit board and the inner circuit board are mutually independent in mechanical structure and physical space, but signals acquired by the outer circuit board and the inner circuit board can be exchanged and transmitted through the inner controller and the outer controller. For example, the outer controller may send an unlocking instruction or a locking instruction to the inner controller, and the inner controller may drive the latch assembly to complete unlocking or locking through the motor main driver and the electric mechanism after receiving the unlocking instruction or the locking instruction from the outer controller, and feed back an unlocking completion signal or a locking completion signal to the outer controller. And secondly, the outer controller and the motor standby driver take the outer circuit board as a layout carrier, and the electric mechanism can be independently driven to act when the inner circuit board fails.

The motor main driver mainly controls and drives the electric mechanism to normally work under the normal working condition, and normal unlocking and locking work is realized. The motor backup driver mainly can replace the motor main driver to control and drive the electric mechanism under the condition of abnormal working conditions, for example, the motor main driver or an internal controller fails to control the electric mechanism to work.

The external locking button can be a mechanical touch button or an electronic touch and trigger button; the external locking button can be a special button or a plurality of combined buttons, and control signals can be given after the combined buttons are pressed.

According to the technical scheme, after the external locking button is started, forced locking can be completed through two control loops:

first, the outer lock button is used for controlling the electric mechanism to be driven to operate through the inner controller and the motor main driver according to a start command of the outer lock button when the outer lock button is started, so that forced locking is carried out outside a door. The scheme belongs to a control loop which is preferentially selected when the external locking button is started, and is generally applied to the situation that the internal controller and the motor main driver can still normally work, so that the internal controller and the motor main driver can still participate in the work in the control loop to control and drive the electric mechanism to act outside a door to implement forced locking, the first toggle arm can be separated from the square bolt assembly to stay at the safe position, and then unlocking can be achieved through the manual driving mechanism.

And the standby control loop directly controls and drives the electric mechanism to act through the motor standby driver when the inner circuit board fails so as to forcibly lock the door. The scheme belongs to a standby control loop which is automatically switched when the outer locking button is started under the condition that the inner circuit board has a fault. The internal circuit board is in fault, wherein the fault comprises the condition that a certain link of the motor main driver or the internal controller is damaged, loses power, fails and the like, and the internal circuit board cannot work, or the abnormal condition that a printed circuit on the internal circuit board sends damage. In this case, since the operation of the electric mechanism cannot be controlled and driven by the motor main driver, the operation of the electric mechanism is controlled and driven by the motor backup driver instead of the motor main driver. In practical applications, the damage of the internal circuit board may cause the combination between the latch assembly and the first toggle arm to be still in a stuck position, and the motor backup driver is started to control and drive the electric mechanism to operate so as to drive the first toggle arm to rotate not only in an up-locking direction, but also to drive the first toggle arm to disengage from the latch assembly and stay in a safe position. After the manual driving mechanism is used for unlocking, the lock can safely enter the room, is convenient to disassemble and maintain from the inside of the door, and does not need to be opened outside the door destructively. The problem mainly solved by the second control loop is how to effectively solve the unlocking problem when the inner circuit board is damaged, and the solving means is mainly designed around the problem. Certainly, if the inner circuit board is damaged, the dead bolt assembly and the first shifting arm are not combined and blocked, and the first shifting arm is already in the safe position, the lock can be unlocked and locked by directly using the manual driving mechanism.

The external locking button and the motor backup driver are not normally started at will in normal unlocking and locking use, but the motor backup driver is a backup control loop which can drive the electric mechanism to act and can be completely unlocked by a baddie; therefore, no matter the motor standby driver or the motor main driver is started through the external locking button, the dead bolt assembly can only be locked without unlocking, and the aim of unlocking by using the influence of the external locking button on the operation of the motor standby driver and the motor main driver can be avoided. However, it is not excluded that the first toggle arm is driven by the electric mechanism to rotate in the unlocking direction after the external locking button is actuated, as long as the rotation range is properly controlled such that the first toggle arm cannot toggle the latch assembly to unlock.

According to the technical scheme, the electric mechanism is turned on in a standby mode through the external locking button and the motor standby driver, and the standby loop cannot be a path through which a bad person can implement harmful behaviors, so that locking safety can be enhanced; and secondly, the first shifting arm can be separated from the dead bolt assembly by utilizing the standby circuit, so that convenience is provided for unlocking by adopting a standby manual driving mechanism, namely the standby circuit is not used for unlocking, but only can be used for locking, and unlocking barriers are eliminated for other mechanical standby unlocking means.

The door locking device further comprises a door leaf position sensor for detecting the position of a door leaf, the door leaf position sensor is in signal connection with the inner controller, and the outer locking button is used for forcibly locking the door outside when the door leaf position sensor fails. According to the technical scheme, the door leaf position sensor can be a sensing device such as an infrared sensor and a hall effect sensor, a position signal of the door leaf can be transmitted to the inner controller, the inner controller judges whether the door leaf is closed in place or not according to the door leaf position signal, and if the door leaf is closed in place, the motor main driver controls and drives the electric mechanism to act, so that locking is automatically completed. And when the door leaf position sensor fails, the outer locking button can be started, the outer controller controls and drives the electric mechanism to act through the inner controller and the motor main driver according to a starting instruction of the outer locking button, so that forced locking is carried out outside the door, or directly controls and drives the electric mechanism to act through the motor standby driver when the inner circuit board fails, so that forced locking is carried out outside the door.

The technical scheme includes that the door lock further comprises a latch bolt assembly arranged in the lock shell and a latch bolt position sensor used for detecting the extending position of the latch bolt, the latch bolt position sensor is in signal connection with the inner controller, and the outer locking button is used for conducting forced locking outside the door when the latch bolt position sensor fails. According to the technical scheme, the oblique tongue position sensor can be used for transmitting an extending position signal of the oblique tongue to the inner controller, the inner controller can judge whether the oblique tongue is locked in place or not according to the extending position signal of the oblique tongue, and if the oblique tongue is locked in place, the motor main driver controls and drives the electric mechanism to act to automatically complete locking. And when the latch bolt position sensor fails, the outer locking button can be started, the outer controller controls and drives the electric mechanism to act through the inner controller and the motor main driver according to a starting instruction of the outer locking button, so that forced locking is carried out outside the door, or directly controls and drives the electric mechanism to act through the motor standby driver when the inner circuit board fails, so that forced locking is carried out outside the door.

The further technical scheme can also be that an inner unlocking button and an inner locking button are arranged on the inner locking panel, the inner unlocking button and the inner locking button are respectively in signal connection with the outer controller, the inner locking button is used for forcibly locking the door, and the inner unlocking button is used for unlocking the door. According to the technical scheme, when the internal unlocking button is started, the external controller controls and drives the electric mechanism to operate and unlock through the internal controller and the motor main driver according to a starting signal of the internal unlocking button, or directly controls and drives the electric mechanism to operate and unlock through the motor standby driver when the internal circuit board fails. When the inner locking button is started, the outer controller drives the electric mechanism to operate and lock through the inner controller and the motor main driver according to a starting signal of the inner locking button, or directly drives the electric mechanism to operate and lock through the motor standby driver when the inner circuit board fails. Namely, the door can be forcibly locked and unlocked.

The technical scheme includes that the lock opening device comprises an outer lock panel, an outer controller and an unlocking instruction picking device, the unlocking instruction picking device is arranged on the outer lock panel and is in signal connection with the outer controller, and the unlocking instruction picking device is used for picking an unlocking instruction and transmitting an unlocking instruction signal corresponding to the unlocking instruction to the outer controller for verification. The unlocking instruction pickup device can be a biological signal pickup device, a key instruction signal pickup device or a remote unlocking instruction pickup device. According to the technical scheme, after the unlocking instruction picking device transmits the unlocking instruction signal corresponding to the unlocking instruction to the outer controller for verification, the outer controller controls and drives the electric mechanism to operate and unlock through the inner controller and the motor main driver or directly controls and drives the electric mechanism to operate and unlock through the motor standby driver when the inner circuit board fails.

The technical scheme can also be that the device further comprises a standby sensor arranged by means of the layout space of the inner circuit board, the standby sensor is in signal connection with the outer controller, and the standby sensor is used for sensing a signal that the first toggle arm is separated from the dead bolt assembly and is in a safe position and transmitting the signal to the outer controller. The standby sensor is arranged on the inner circuit board, but has no direct signal connection relation with the electric element on the circuit board, and the signal received by the standby sensor is transmitted to the outer controller. After the outer controller receives the position signal that the first shifting arm is located at the safe position, the outer controller can select to perform the next control step, for example, the electric mechanism is controlled to stop working, and the first shifting arm is prevented from being blocked on the square tongue assembly again after continuously rotating over the head (reaching 360 degrees) after being separated from the square tongue assembly. The standby sensor can be an infrared sensor, a Hall effect sensor and other sensing devices.

The further technical scheme can also be that the device further comprises a position display in signal connection with the outer controller, and the position display is used for displaying a signal that the first toggle arm is separated from the dead bolt assembly and is in a safe position. Wherein the position display may be selectively disposed on the outer lock panel or the inner lock panel. The position display can be an indicator light, an LED display screen and the like which can feed back an indicating signal to a user. Accordingly, the position signal that the first toggle arm has disengaged from the latch assembly, as represented by the position display, may be embodied as a light signal, a pattern symbol signal, or the like. By sensing the indication signal, a user can clearly know whether the first shifting arm is separated from the dead bolt assembly or not without blindly controlling the first shifting arm or the second shifting arm to act, and clear guidance is provided for next effective operation.

The electric mechanism comprises a driving motor and a speed reducing mechanism driven by the driving motor, and the speed reducing mechanism drives the first shifting arm to rotate; still arrange the first toggle device that rotates the setting in the lock casing, first group arm setting is in on the first toggle device, be provided with output gear on reduction gears's the output shaft, first toggle device including can with output gear meshing driven transmission fluted disc, reduction gears pass through output gear with the meshing transmission drive between the transmission fluted disc first toggle device reaches first group arm forward and reverse rotation. Therefore, the first shifting device and the first shifting arm can be driven to rotate in the forward and reverse directions by means of meshing transmission between the output gear and the transmission fluted disc, and the first shifting arm can be positioned by means of the meshing relation between the output gear and the transmission fluted disc after the speed reducing mechanism stops working, so that the first shifting arm is prevented from rotating randomly to block the square-tongue assembly.

The manual driving mechanism further comprises a mechanical lock cylinder opened by a mechanical key and an inner door knob, the inner door knob and the mechanical lock cylinder are arranged in front and at the back, the second shifting arm is positioned between an output shaft of the inner door knob and an output shaft of the mechanical lock cylinder, and the second shifting arm can extend into the lock body and can drive the square tongue component to be locked or unlocked when the second shifting arm rotates; the second shifting arm is connected to the output shaft of the inner knob and can rotate along with the output shaft of the inner knob, and the second shifting arm can also be connected to the output shaft of the mechanical lock cylinder and can rotate along with the output shaft of the mechanical lock cylinder after a key is inserted.

The second shifting arm is connected with the output shaft of the inner door knob, and the characteristic defines that the second shifting arm is mainly positioned by the output shaft of the inner door knob, can be directly connected with the output shaft of the inner door knob or indirectly connected with the output shaft of the inner door knob, and even can be provided with a clutch mechanism between the output shaft of the inner door knob and the second shifting arm, and the transmission between the output shaft of the inner door knob and the second shifting arm is limited by the clutch mechanism.

The feature defines that the connection relationship between the second dial arm and the output shaft of the mechanical lock cylinder is variable, the second dial arm can be connected to the output shaft of the mechanical lock cylinder under the condition that the lock key is inserted, if the condition is not met, the second dial arm and the output shaft of the mechanical lock cylinder are in a separation relationship, and when the inner knob is rotated, the rotation of the second dial arm is not limited by the mechanical lock cylinder.

The external controller is also used for responding to a locked-rotor signal of the electric mechanism, and controlling and driving the first shifting arm to reversely rotate back to the safety position through the main motor driver and the electric mechanism, or directly controlling and driving the electric mechanism to act and driving the first shifting arm to reversely rotate back to the safety position through the standby motor driver when the internal circuit board fails. According to the technical scheme, when the electric mechanism is locked, namely the electric mechanism cannot rotate forwards continuously, the electric mechanism can return to the safety position in a mode of driving the first shifting arm to rotate reversely and cannot stay at the original position, and the first shifting arm is prevented from clamping the dead bolt assembly.

Drawings

FIG. 1 is an exploded view of a lock with an emergency unlocking mechanism according to the present invention;

fig. 2 is a schematic diagram of the internal structure of an electric lock body 100 to which the technical solution of the present invention is applied, wherein the bolt head is in an unlocked state;

fig. 3 is a schematic diagram of the internal structure of the electric lock body 100, in which the bolt head is in a locked state, and the first toggle device 6, the internal circuit board 500 and the electric mechanism 2 are omitted;

fig. 4 is a schematic perspective view of the first toggle device 6, and a first toggle arm 600 is disposed on the first toggle device 6;

FIG. 5 is a perspective view of the tongue assembly 4;

FIG. 6 is a schematic view of the assembled structure of the dead bolt assembly 4, the intermediate slide 300 and the slide puller 400;

FIG. 7 is an exploded structural view of the deadbolt assembly 4, intermediate slide 300 and slide dial 400;

fig. 8 is a perspective view of the locking plate 9;

fig. 9 is a schematic front view of the rotating arm 8;

fig. 10 is a schematic view of an exploded structure of the second toggle device 7;

fig. 11 is a schematic diagram of the internal structure of the electric lock body 100, in which the square bolt assembly and the intermediate sliding member 300, the slide pulling member 400, etc. thereon are omitted for clarity of the transmission relationship between the second pulling arm 71 and the latch supporting plate 31;

FIG. 12 is a schematic view of an alternative connection between the first toggle mechanism and the first toggle arm;

FIG. 13 is a schematic view of the transmission between the mechanical lock cylinder, the inner knob and the second arm;

fig. 14 is a control schematic of a dual control system applied to the lock.

Detailed Description

The following describes a lock with an emergency unlocking structure and a structure of an electric lock body thereof applying the technical scheme of the invention with reference to the accompanying drawings.

As shown in fig. 1, 2 and 3, the lock with emergency unlocking structure includes an inner lock panel 101 facing the indoor, an outer lock panel 102 facing the outdoor, and an electric lock body 100 disposed between the inner lock panel 101 and the outer lock panel 102, wherein the electric lock body 100 is generally embedded in a door leaf; the electric lock body 100 comprises a lock shell 1, wherein an inclined bolt component 3 capable of axially moving, an axial square bolt component 4 and an inclined bolt return spring 5 capable of driving the inclined bolt component 3 to automatically extend along the axial direction are accommodated in the lock shell 1. The oblique tongue component 3 and the square tongue component 4 are arranged left and right.

The latch bolt assembly 3 comprises a latch bolt support plate 31 and a latch bolt head 32 which is arranged at the front end of the latch bolt support plate 31 and has a slope. The lock housing 1 is provided with a second positioning shaft 14, the latch bolt supporting plate 31 is provided with a first long hole 311 adapted to a first rotating shaft 62 to be discussed below and a second long hole 312 adapted to the second positioning shaft 14, and the first long hole 311 and the second long hole 312 are respectively arranged in the front-back direction so as to be capable of guiding the axial front-back movement of the latch bolt supporting plate 31 by means of the first rotating shaft 62 and the second positioning shaft 14, thereby improving the sliding stability of the latch bolt supporting plate 31. The lock housing 1 includes a front housing 11, and the front housing 11 is provided with a latch bolt opening (not shown) for allowing the latch bolt head 32 to axially extend.

As shown in fig. 3 and 4, the tongue assembly 4 includes a tongue plate 41 and two tongue heads (421, 422) provided at the front end of the tongue plate 41. The supporting plate 41 is arranged in a wide manner in the left-right direction, the two tongue heads (421, 422) have different widths in the left-right direction, and the width of the tongue head 421 is greater than that of the tongue head 422. Thus, the two dead bolt heads (421, 422) fully utilize the width space of the lock body 100 to set a large width, wherein the width of the dead bolt head 421 is larger than that of the dead bolt head 422, so that the capability of resisting the dead bolt damage can be greatly improved. The front case 11 is provided with a tongue opening (not shown) through which the tongue head 42 can axially extend. The two lingual heads (421, 422) are collectively referred to below as the lingual head 42.

As shown in fig. 2, fig. 3 and fig. 4, the lock housing 1 further includes a first toggle device 6 rotatably disposed therein, a first toggle arm 600 disposed on the first toggle device 6, and an electric mechanism 2 for driving the first toggle arm 600 to rotate. The electric mechanism 2 includes a drive motor 21 and a reduction mechanism 22 driven by the drive motor 21. The first toggle device 6 comprises a first rotating shaft 62 and a transmission gear disc 63 arranged at the top end of the first rotating shaft 62, and the first toggle device 6 is rotatably arranged in the lock casing 1 through the first rotating shaft 62. The first toggle arm 600 is connected to the first rotating shaft 62 and the transmission gear plate 63 at the same time and rotates synchronously with the transmission gear plate 63. Of course, in other embodiments, it is also possible that the first toggle arm 600 is only disposed on the first rotating shaft 62 or the transmission gear plate 63. The first toggle arm 600 drives the dead bolt assembly 4 to normally lock and unlock in a toggle manner and disengages from the dead bolt assembly 4 after the locking and unlocking are completed, and the first toggle arm 600 can also retract the latch bolt assembly 3. An output gear 23 capable of being in meshing transmission with the transmission fluted disc 63 is arranged on an output shaft of the speed reducing mechanism 22, the electric mechanism 2 drives the first toggle device 6 and the first toggle arm 600 to rotate in the forward and reverse directions through the meshing transmission between the output gear 23 and the transmission fluted disc 63, and in addition, the first toggle arm 600 can be positioned by means of the meshing relationship between the output gear 23 and the transmission fluted disc 63 after the speed reducing mechanism 22 stops working, so that the first toggle arm 600 is prevented from rotating randomly to influence the operation of other components.

As shown in fig. 5, 6, 7 and 11, the tongue plate 41 is provided with a first recess 43 into which the first toggle arm 600 can be screwed and used for engaging with the first toggle arm 600, and when the first toggle arm 600 is screwed into the first recess 43 and rotated clockwise or counterclockwise, the tongue plate 41 can be toggled to move forward or backward in the axial direction. A slide element 400 and a slide element return spring 54 capable of driving the slide element 400 to automatically return forward in the axial direction are disposed below the tongue plate 41. First spring positioning columns 411 and sliding part guiding columns (412 and 413) which are arranged at intervals are arranged on the lower side wall of the square tongue supporting plate 41, sliding part connecting arms 403 and guiding grooves (404 and 405) matched with the sliding part guiding columns (412 and 413) are arranged on the sliding part 400, one end of each sliding part return spring 54 is connected with the first spring positioning columns 411, the other end of each sliding part return spring is connected with the sliding part connecting arms 403, and the sliding part 400 is sleeved on the sliding part guiding columns (412 and 413) through the guiding grooves (404 and 405) in a penetrating mode so as to be arranged on the square tongue supporting plate 41 in a sliding mode. When the tongue plate 41 moves back and forth in the axial direction, the sliding member 400 and the sliding member return spring 54 can be carried to move back and forth in the axial direction. Thus, the toggle 400, the toggle return spring 54, and the tongue plate 41 are stacked one on another, thereby reducing the occupation of the installation space. Secondly, when the tongue supporting plate 41 carries the slide shifting member 400 to move back and forth along the axial direction, the tongue supporting plate 41 does not need to overcome the elastic resistance of the slide shifting member return spring 54, and the energy consumption of the electric mechanism 2 can be reduced. The slide dial 400 is further provided with an auxiliary recess 406 for allowing the first dial arm 600 to be screwed in and for being combined with the first dial arm 600, and the auxiliary recess 406 is located in front of the first recess 43. The slide toggle piece 400 is further provided with a slide toggle piece toggle arm 401 for toggling the latch bolt supporting plate 31, the latch bolt supporting plate 31 is provided with a toggle combination part 315 for combining the slide toggle piece toggle arm 401, and a front avoidance space 316 for avoiding the axial front-and-back movement of the slide toggle piece toggle arm 401 is reserved in front of the toggle combination part 315. Of course, in other embodiments, the toggle 400 and the toggle return spring 54 may also be disposed on the lock housing 11, when the tongue plate 41 moves in the backward direction, the tongue plate 41 carries the toggle 400 to move in the backward direction against the elastic resistance of the toggle return spring 54, and when the tongue plate 41 moves in the forward direction, the toggle 400 is automatically reset in the axial direction by the toggle return spring 54.

As shown in fig. 2, fig. 3 and fig. 8, a locking plate 9 and a locking plate return spring 52 are further disposed in the lock housing 1, the locking plate 9 and the dead bolt support plate 41 are vertically disposed, an axial locking device is disposed between the locking plate 9 and the dead bolt support plate 41, and the locking plate 9 is axially locked by the axial locking device in cooperation with the dead bolt support plate 41. The axial locking device comprises a protrusion 47 arranged on the bracket plate 41 and facing the position-locking plate 9, and a third recess 92 arranged on the position-locking plate 9 and adapted to the protrusion 47. In the present embodiment, the number of the third recesses 92 is 3, the number of the first recesses 43 is 2, the third recesses 92 are larger than the number of the first recesses 43, and the step length of the third recesses 92 in the front-rear direction is substantially the same as the step length of the first recesses 43. Of course, in other embodiments, the position of the protrusion 47 and the third recess 92 can also be interchanged, i.e., the protrusion 47 facing the tongue plate 41 is provided on the detent plate 9, and the third recess 92 adapted to the protrusion 47 is provided on the detent plate 9. The locking plate 9 also comprises a side 94 which extends into the first recess 43, the orthographic projection of the side 94, viewed in front elevation, overlapping the orthographic projection of the first recess 43. When the first toggle arm 600 is screwed into the first recess 43, the first toggle arm 600 can be coupled to the one side 94 and push the detent plate 9 to move so as to disable the axial locking device and thus release the axial locking of the tongue plate 41 so that the tongue plate 41 can move back and forth in the axial direction, and when the first toggle arm 600 leaves the first recess 43, the detent plate return spring 52 can drive the detent plate 9 to automatically reset and axially lock the tongue plate 41 so that the tongue plate 41 cannot move back and forth in the axial direction.

As shown in fig. 3, 5 and 9, a rear elevation 49 is further provided on the dead bolt assembly 4, and a rotating arm 8 and a rotating arm return spring 51 capable of pushing the rotating arm 8 to rotate out of the lock housing 1 for return are further rotatably provided therein. The rotating arm 8 is provided with a shaft hole 83 and an avoiding hole 84 for avoiding the protrusion 47, and the left edge of the rotating arm 8 is provided with a connecting protrusion 82. A rotation shaft 12 is provided in the lock case 1, and the rotation arm 8 is rotatably provided on the rotation shaft 12 through a shaft hole 83. One end of the rotating arm return spring 51 is sleeved on the connecting bulge 82, and the other end of the rotating arm return spring is pressed against the left vertical side wall of the lock shell 1. When the rotating arm 8 rotates out of the reset position, the top end 81 can abut against the vertical surface 49, so that the axial moment of the tongue assembly 4 pressed back axially can be improved by cooperating with the axial locking device. The position-blocking plate 9 is further provided with a pushing arm 91 capable of pushing the top end of the rotating arm 8 to leave the vertical surface 49, and a joint point A between the pushing arm 91 and the rotating arm 8 is located between the rotating shaft 12 of the rotating arm 8 and the top end 81 of the rotating arm 8. When the axial locking device is disabled by the pushing movement of the detent plate 9 to release the axial locking of the tongue plate 41, the detent plate 9 synchronously pushes the top end of the rotating arm 8 away from the vertical surface 49 by the pushing arm 91 to facilitate the retraction of the tongue assembly 4.

According to the above technical solution, as shown in fig. 2 and 3, in the state that the dead bolt head 42 and the latch bolt head 32 are extended out of the lock housing 1, the rotating arm 8 is rotated out of the reset by the rotating arm reset spring 51, and the top end 81 thereof is abutted against the vertical surface 49. The blocking plate 9 is reset under the action of the blocking plate reset spring 52, and the dead bolt supporting plate 41 is axially locked by the axial locking device and cannot move back and forth along the axial direction. The lock body 100 is in a locked state. When the unlocking is required, when the electric mechanism 2 drives the first toggle arm 600 to rotate into the first recess 43 and rotate counterclockwise continuously, the blocking plate 9 is pushed by the first toggle arm 600 to move so as to disable the axial locking device and release the axial locking of the tongue plate 41, and meanwhile, the pushing arm 91 pushes the top end 81 of the rotating arm 8 away from the vertical surface 49, the first toggle arm 600 toggles the tongue plate 41 to move backward and retracts the tongue head 42 into the lock housing 1, at this time, the slide toggle 400 and the auxiliary recess 406 thereof also move backward and to the position with the tongue plate 41 and the slide toggle arm 401 can be coupled to (or substantially close to) the toggle coupling portion 315, further, when the first toggle arm 600 rotates one round in the clockwise direction and rotates counterclockwise continuously, the first toggle arm 600 can not only push the blocking plate 9 (it can also be structurally configured that the blocking plate 9 is not pushed any more at this time), but also toggle the toggle element 400 to move backward, and the toggle element 400 that moves backward can drag the latch bolt head 32 to retract into the lock housing 1 through the toggle joint 315. When the latch bolt support plate 31 moves backward to a certain position, the electric mechanism 2 drives the first toggle arm 600 to rotate clockwise and leave the auxiliary recess 406, the slide toggle 400 and the latch bolt assembly 3 are released, the slide toggle 400 is driven by the slide toggle return spring 54 to return forward, the latch bolt assembly 3 is driven by the latch bolt return spring 5 to return forward, and the latch bolt head 32 axially extends out of the front housing 11 from the latch bolt opening. Meanwhile, the blocking plate return spring 52 can drive the blocking plate 9 to automatically return and axially lock the dead bolt supporting plate 41 so that the dead bolt supporting plate cannot move back and forth along the axial direction.

On the basis, if the bolt head 42 needs to be locked again, the electric mechanism 2 drives the first toggle arm 600 to rotate into the first recess 43 and rotate clockwise continuously, the locking plate 9 can be pushed and moved by the first toggle arm 600 and release the axial locking of the bolt support plate 41, the first toggle arm 600 rotates clockwise continuously to toggle the bolt support plate 41 to move forward, the bolt head 42 axially extends out of the lock housing 1 from the bolt opening, and at this time, the slide-toggle element 400 also moves forward along with the bolt support plate 41 and the slide-toggle arm 401 moves freely in the front avoidance space 316. Thereafter the first toggle arm 600 continues to rotate clockwise away from the first recess 43. The blocking plate return spring 52 drives the blocking plate 9 to automatically return and axially lock the dead bolt supporting plate 41 so that the dead bolt supporting plate cannot move back and forth along the axial direction. The swivel arm 8 is swiveled out of position and its top end 81 comes to rest against the vertical surface 49 again.

Further, the first recess 43 includes two first sub-recesses arranged in the front-rear direction (43a、 43b) The two first sub-recesses: (43a、43b) Separated by a projecting tooth 44, said one projecting tooth 44 being provided on said tongue plate 41. The auxiliary recess 406 is separated from the first sub-recess 43b located at the front by another protruding tooth 402, and the other protruding tooth 402 is provided on the slide dial 400. Thus, the first toggle arm 600 rotated by two revolutions can be successively coupled to the two first sub-recesses (b:43a、43b) The dead bolt supporting plate 41 is stirred upwards to perform secondary axial movement, so that the axial extension length of the dead bolt head 42 can be increased, and the anti-prying performance of the lock body is improved.

As shown in fig. 3, 5 and 10, intermediate openings (90, 48) are respectively provided on the blocking plate 9 and the tongue plate 41, and the second toggle device 7 is provided in the intermediate openings (90, 48). The second toggle device 7 and the first toggle device 6 are arranged at left and right intervals, the second toggle device 7 comprises a second toggle arm 71 capable of rotating in forward and reverse directions, the second toggle arm 71 can extend into the lock body 100 and can drive the square bolt assembly 4 to be locked and unlocked in a toggle mode when the second toggle arm 71 rotates, and can be separated from the square bolt assembly 4 after the locking and unlocking are completed, and the second toggle arm 71 can retract the oblique bolt assembly 3. The tongue supporting plate 41 is provided with a second recess 46 for allowing the second toggle arm 71 to be screwed in and for combining the second toggle arm 71, the position-locking plate 9 further comprises another side edge 95 extending to the second recess 46, and when viewed in a front view, an orthographic projection of the other side edge 95 overlaps with an orthographic projection of the second recess 46. When the second toggle arm 71 is screwed into the second recess 46, the second toggle arm 71 can be coupled to the other side edge 95 and push the detent plate 9 to move, so that the axial locking device is disabled to release the axial locking of the tongue plate 41 and further to move the tongue plate 41 forward or backward, and when the second toggle arm 71 leaves the second recess 46, the detent plate return spring 52 can drive the detent plate 9 to automatically return and axially lock the tongue plate 41 so that the tongue plate cannot move forward or backward in the axial direction.

As shown in fig. 10 and 13, the second toggle mechanism 7 further comprises a manual driving mechanism for driving the second toggle arm 71 to rotate, and the manual driving mechanism comprises a mechanical lock cylinder 23 (in the industry definition, the lock cylinder is also called a lock head) opened by a mechanical key and an inner knob 73. The manual driving mechanism is an independent functional module that can be detached from the lock body 100, and in a specific application scenario, the manual driving mechanism needs to be first combined with the lock body to allow the second dialing arm 71 to extend into the lock body 100. The inner knob 73 and the mechanical lock cylinder 23 are arranged in front and at the back, and the second toggle arm 71 is located between an output shaft 730 of the inner knob 73 and an output shaft 720 of the mechanical lock cylinder 23. The second toggle arm 71 is connected to the output shaft 730 of the inner door knob 73 and can rotate along with the output shaft 730 of the inner door knob 73, and when the second toggle arm 71 rotates, the latch assembly 4 can be driven to be locked or unlocked. The second paddle 71 is provided with a paddle connecting hole 710 capable of receiving an output shaft 720 of the mechanical key cylinder 23. After a key is inserted, the output shaft 720 of the mechanical lock cylinder 23 is inserted into the arm-dialing connecting hole 710 to form a radial linkage relationship with the second dialing arm 71, so that the second dialing arm 71 is simultaneously connected to the output shaft 720 of the mechanical lock cylinder 23 and can rotate along with the output shaft 720 of the mechanical lock cylinder 23. According to the above technical solution, the second toggle arm 71 and the output shaft 720 of the mechanical lock cylinder 23 are in a clutchable connection relationship, and the second toggle arm 71 can be simultaneously connected to the output shaft 720 of the mechanical lock cylinder 23 and the output shaft 730 of the inner door knob 73 under the condition that a key is inserted, and the second toggle arm 71 and the inner door knob 73 can be driven to rotate by turning the key; otherwise, the second toggle arm 71 and the output shaft 720 of the mechanical lock cylinder 23 are in a separated relationship, and when the inner knob 73 is rotated, the second toggle arm 71 rotates along with the output shaft 730 of the inner knob 73, and is not limited by the rotation of the mechanical lock cylinder 23. When the electric mechanism 2 is in failure or insufficient in power, the locking and unlocking operation can be completed by using the second toggle device 7 as a standby device to replace the first toggle arm 600. Of course, in other embodiments, if the inner knob 73 is not provided, the second toggle arm 71 can be connected to the output shaft 720 of the mechanical lock cylinder 23 and can rotate with the output shaft 720 of the mechanical lock cylinder 23.

As shown in fig. 7 and 11, the lock body 100 further includes an intermediate slider 300 slidably disposed on the tongue plate 41 and a slider return spring 53 capable of driving the intermediate slider 300 to be automatically returned. On the lower side wall of the tongue plate 41, second spring positioning posts 414 and intermediate slider guide posts (415, 416) are provided, which are arranged at a distance from each other. The intermediate slider 300 comprises a hook 301 for engaging the second toggle arm 71, an engaging stud 302 for engaging the slider return spring 53, and guide slots (303, 304) adapted to the intermediate slider guide posts (415, 416). The intermediate sliding member 300 is inserted into the intermediate sliding member guiding posts (415, 416) through the guiding slots (303, 304), and one end of the sliding member return spring 53 is connected to the coupling boss 302, and the other end is connected to the second spring positioning post 414. A lever member 200 and a rotating shaft 15 are further arranged in the lock housing 1, and the lever member 200 is rotatably arranged on the rotating shaft 15. The rear end 202 of the lever member 200 extends to the latch tongue support plate 31 and can abut against the latch tongue support plate 31, the front end of the lever member 200 is provided with an upright part 201 which can be combined with the intermediate slider 300, and the upright part 201 avoids the axial forward and backward movement path of the intermediate slider 300. When the tongue supporting plate 41 extends in the axial direction to drive the intermediate sliding member 300 to move forward, the front end of the lever member 200 and the upright portion 201 can be free from the tongue supporting plate 41 and the intermediate sliding member 300, when the tongue supporting plate 41 drives the intermediate sliding member 300 to move backward and to a certain position, the hook arm 301 of the intermediate sliding member 300 is located in the rotation range of the second toggle arm 71 and rotates the second toggle arm 71, the second toggle arm 71 toggles the hook arm 301 to pull and slide the intermediate sliding member 300, the slid intermediate sliding member 300 can be combined with the upright portion 201 and can drive the lever member 200 to rotate through the upright portion 201, and the rotating lever member 200 can press the tongue supporting plate 31 to move backward to retract the tongue head 32 into the lock housing 1.

According to the above solution, as shown in fig. 2, the blade head 42 is in the unlocked state. When the second toggle arm 71 is rotated clockwise to be screwed into the second recess 46, the second toggle arm 71 can be engaged with the other side edge 95 and push the detent plate 9 to move, so that the axial locking device is disabled, thereby releasing the axial locking of the tongue plate 41 and further enabling the tongue plate 41 to be moved forward to push the tongue head 42 out of the lock housing 1, and at the same time, the tongue plate 41 carries the intermediate sliding member 300 forward. When the second toggle arm 71 leaves the second recess 46, the detent plate return spring 52 can drive the detent plate 9 to automatically return and axially lock the dead bolt support plate 41 so that the dead bolt support plate cannot move back and forth in the axial direction.

As shown in fig. 3, the tongue head 42 and the latch tongue head 32 are in a locked state. When the second toggle arm 71 is rotated counterclockwise to be screwed into the second recess 46, the second toggle arm 71 is engaged with the other side edge 95 again and pushes the detent plate 9 to move, so that the axial locking device is disabled, and meanwhile, the pushing arm 91 pushes the top end 81 of the rotating arm 8 away from the vertical surface 49 to release the axial locking of the tongue supporting plate 41, so that the tongue supporting plate 41 is shifted to move backwards to pull the tongue head 42 back into the lock housing 1. Meanwhile, the dead bolt supporting plate 41 carries the intermediate sliding member 300 to move backwards, when the intermediate sliding member 300 moves backwards to a certain position, the hook arm 301 of the intermediate sliding member 300 is located in the rotation range of the second dial arm 71 and the second dial arm 71 is rotated, the second dial arm 71 dials the hook arm 301 to pull and slide the intermediate sliding member 300, the slid intermediate sliding member 300 is combined to the upright part 201 and drives the lever member 200 to rotate through the upright part 201, and the rotated lever member 200 presses the dead bolt supporting plate 31 to move backwards so as to retract the dead bolt head 32 into the lock housing 1. When the second toggle arm 71 leaves the second recess 46 to toggle the hook arm 301, the detent plate return spring 52 can drive the detent plate 9 to automatically return and axially lock the dead bolt support plate 41 so that the dead bolt support plate cannot move back and forth axially. When the second toggle arm 71 is rotated to leave the hook arm 301, the intermediate slider 300 is automatically reset under the driving of the slider return spring 53, and the latch bolt supporting plate 31 is reset under the action of the latch bolt return spring 5 to extend the latch bolt head 32 out of the lock housing 1 again.

Further, the second recess 46 includes two second sub-recesses (46 a, 46 b) arranged in the front-rear direction, the two second sub-recesses (46 a, 46 b) being separated by a protruding tooth 45, the protruding tooth 45 being provided on the blade 41. Therefore, the second shifting arm 71 which rotates for two circles can be sequentially combined with the two second sub-recesses (46 a, 46 b) to shift the dead bolt supporting plate 41 to perform secondary movement, so that the extension length of the dead bolt head 42 can be increased, and the anti-prying performance of the lock body is improved.

According to the above technical solution, the lock body 100 is provided with the electric mechanism 2 and the manual driving mechanism at the same time, if the first toggle arm 600 stays in the first recess 43 after the locking or unlocking is completed, it is basically difficult to reversely drive the first toggle arm 600 to automatically leave the first recess 43 by the movement of the dead bolt assembly 4, that is, the first toggle arm 600 is locked on the first recess 43 and also restricts the dead bolt assembly 4 from moving, and at this time, the manual driving mechanism for starting and rotating the spare bolt assembly 4 is also difficult to drive and realize the unlocking. How to coordinate the electric driving part and the manual driving part so that the locking and unlocking can be realized by the manual driving part at any time becomes a technical problem to be further solved by the invention. For this purpose, after the electric mechanism 2 drives the first toggle arm 600 to complete locking or unlocking, the electric mechanism further drives the first toggle arm 600 to disengage from the square bolt assembly 4 and allows the first toggle arm 600 to stay at a safe position (an area between the first main sensor 501 and the second main sensor 502 in fig. 2), the first toggle arm 600 stays at the safe position and allows the first toggle arm 600 to avoid the square bolt assembly 4 at this time, and the manual driving mechanism is configured to utilize the first toggle arm 600 to stay at the safe position to drive the square bolt assembly 4 to move through the second toggle arm 71 to lock or unlock. Therefore, the electric mechanism 2 can not only drive the first toggle arm 600 to complete locking or unlocking, but also further drive the first toggle arm 600 to disengage from the dead bolt assembly 4 and stay at a safe position, thereby providing a preparation condition for the second toggle arm 71 to drive the dead bolt assembly 4 to move at any time. In the safety position, the first toggle arm 600 is not only completely disengaged (not in contact with) the dead bolt assembly 4, but also is moved away from the movement path of the dead bolt assembly 4, and at this time, the first toggle arm 600 does not hinder the movement of the dead bolt assembly 4, and the dead bolt assembly 4 can be smoothly moved to complete locking or unlocking by the driving of the second toggle arm 71.

As shown in fig. 2, 3 and 13, in order to accurately stop the first toggle arm 600 at the safe position, an inner circuit board 500 is further disposed in the lock housing 1, the inner circuit board 500 is disposed above and below the latch plate 31, and a part of the inner circuit board 500 is disposed above and below the transmission toothed disc 63. An inner controller 5010 and a motor main driver 509 in signal connection with the inner controller 5010 are disposed on the inner circuit board 500, and the motor main driver 509 controls and drives the electric mechanism 2. A fluted disc induction trigger body 61 is arranged on the transmission fluted disc 63, an induction receiver is arranged on the inner circuit board 500 and vertically and correspondingly arranged on the transmission fluted disc 63, the induction receiver comprises a first main sensor 501 and a second main sensor 502 which are arranged front and back along a moving path of the fluted disc induction trigger body 61, and the first main sensor 501 and the second main sensor 502 can respectively receive induction signals passed by the fluted disc induction trigger body 61 and send the induction signals to the inner controller 5010. The internal controller 5010 is configured to determine that the first toggle arm 600 completes locking or unlocking and rotates away from the first recess 43 according to the signal fed back by the first main sensor 501, and determine the rotation direction of the first toggle arm 600 and the number of passes in the same rotation direction according to the sequence of the signals fed back by the first main sensor 501 and the second main sensor 502.

A standard logic model is preset in the internal controller 5010, and the standard logic model includes that a signal fed back by the first main sensor 501 is received first, and then a signal fed back by the second main sensor 502 is received, so that the first toggle arm 600 is determined to rotate clockwise once; when the feedback signal from the second main sensor 502 is received first and then the feedback signal from the first main sensor 501 is received, the logic information of one counterclockwise rotation of the first toggle arm 600 is determined. According to the standard logic model, the internal controller 5010 determines the rotation direction of the first dial arm 600 and the number of times of passing in the same rotation direction according to the sequence of the feedback signals of the first and second

main sensors

501 and 502 obtained in practice. In this way, the internal controller 5010 can more accurately control the operation of the first lever 600 by the electric mechanism 2 and can better control the time when the electric mechanism 2 stops operating so that the first lever 600 stays at the safety position (the area between the first main sensor 501 and the second main sensor 502).

A third sensor 508 is also disposed on the inner circuit board 500, and the third sensor 508 is in signal connection with the inner controller 5010. A third signal column 203 is further disposed at the rear end 202 of the lever member 200, and when the intermediate slider 300 is in the reset state and does not drive the lever member 200 to rotate, the third signal column 203 and the third sensor 508 are disposed in an up-and-down correspondence. When the second toggle arm 71 rotates through the lever member 200 to press the latch bolt supporting plate 31 to move backwards so as to retract the latch bolt head 32 into the lock housing 1, the third signal column 203 leaves the third sensor 508, at this time, the third sensor 508 sends a moving signal of the third signal column 203 to the inner controller 5010, and the inner controller 5010 records the action times of the second toggle arm 71, so that a user can know the use condition of the manual driving mechanism.

However, it cannot be ignored that the manual driving mechanism cannot be used to unlock or lock the electronic device when the internal circuit board 500 fails to operate and the electric mechanism 2 suddenly stops operating, so that the first toggle lever 600 is stuck in the first recess 43. In view of this, as shown in fig. 13, an external circuit board 800 is further provided on the external lock panel 102. Of course, in other embodiments, the outer circuit board 800 may also be disposed on the inner lock panel 101. The outer circuit board 800 is provided with an outer controller 801 and a motor spare driver 802 in signal connection with the outer controller 801, the motor spare driver 802 also controls and drives the electric mechanism 2, and the inner controller 5010 is in signal connection with the outer controller 801; the outer lock panel 102 is provided with an outer lock button 105, and the outer lock button 105 is connected to the outer controller 801 by a signal. The external lock button 105 is used to control and drive the electric mechanism 2 by the internal controller 5010 and the motor main driver 509 to perform forced locking outside the door according to an activation command of the external lock button 105 when the external lock button 105 is activated, or to control and drive the electric mechanism 2 by the motor backup driver 802 directly when the internal circuit board 500 fails to operate to perform forced locking outside the door, in response to the activation command of the external lock button 105.

The external circuit board 800 and the internal circuit board 500 are mechanically and physically independent from each other, but signals acquired by the external circuit board and the internal circuit board can be exchanged and transmitted through the internal controller 5010 and the external controller 801. The outer controller 801 transmits an unlocking command or a locking command to the inner controller 5010, and the inner controller 5010, upon receiving the unlocking command or the locking command from the outer controller 801, drives the tongue assembly 42 to complete unlocking or locking by the motor main driver 509 and the electric mechanism 2, and feeds back an unlocking completion signal or a locking completion signal to the outer controller 801. Next, the outer controller 801 and the motor backup driver 802 use the outer circuit board 800 as a layout carrier, and can also independently drive the electric mechanism 2 to operate when the inner circuit board 500 fails.

The motor main driver 509 mainly controls and drives the electric mechanism 2 to normally operate under a normal operating condition, so as to achieve normal unlocking and locking operations. The motor backup driver 802 is mainly used to drive the electric mechanism 2 instead of the motor main driver 509 in case of abnormal operation, for example, the motor main driver 509 or the internal controller 5010 fails to control the operation of the electric mechanism 2.

According to the above technical solution, after the external locking button 105 is activated, forced locking can be completed through two control loops: first, the main control circuit of the outer lock button 105 is configured to control and drive the electric mechanism 2 by the inner controller 5010 and the motor main driver 509 to perform forced locking outside the door in response to an activation command of the outer lock button 105 by the outer controller 801 when the outer lock button 105 is activated. This scheme belongs to a control loop that is preferentially selected when the external locking button 105 is activated, and is generally applied to a manual forced intervention scheme in which the internal controller 5010 and the motor main driver 509 are still in a normal operating state, so in this control loop, the internal controller 5010 and the motor main driver 509 can still participate in the operation to control and drive the electric mechanism 2 to operate to perform forced locking outdoors, and the first toggle arm 600 can be disengaged from the dead bolt assembly 4 to stay at the safe position, and then unlocking can also be performed by the manual driving mechanism.

Second, in the backup control circuit, when the internal circuit board 500 fails, the external controller 801 controls and drives the electric mechanism 2 to operate directly through the motor backup driver 802, thereby forcibly locking the door. This solution belongs to a backup control loop that automatically switches when the outer lock button 105 is activated in case of a failure of the inner circuit board 500. In this case, since the operation of driving the electric mechanism 2 cannot be controlled by the motor main driver 509, the operation of driving the electric mechanism 2 is controlled by the motor backup driver 802 instead of the motor main driver 509. In practical applications, the inner circuit board 500 may be damaged to cause the tongue supporting plate 41 and the first toggle arm 600 to remain coupled and in a stuck position, and the motor backup driver 802 is activated to control and drive the electric mechanism 2 to operate so as to drive the first toggle arm 600 not only to rotate in an up-locking direction, but also to drive the first toggle arm 600 to disengage from the tongue supporting plate 41 and to stay in a safe position, so that the second toggle arm 71 is driven by the manual driving mechanism to drive the tongue assembly 4 to move to unlock and lock the tongue assembly 4, and the tongue assembly 4 itself is in a locked state at this time, and the tongue assembly does not need to be locked by the manual driving mechanism. After the manual driving mechanism is used for unlocking, the lock can safely enter the room, is convenient to disassemble and maintain from the inside of the door, and does not need to be opened outside the door destructively. The main problem to be solved by providing the backup control loop is how to effectively solve the unlocking problem when the inner circuit board 500 is damaged, and the solving means is mainly designed around the problem. Of course, if the inner circuit board 500 is damaged, the support plate of the dead bolt assembly 4 and the first toggle arm 600 are not combined and stuck, and at this time, the first toggle arm 600 is already in the safe position, and the lock can be unlocked and locked by directly using the manual driving mechanism.

The external lock button 105 and the motor backup driver 802 are not normally activated at will in normal unlocking and locking use, but are a backup control loop that can drive the electric mechanism 2 to act, and the unlocking is possible to be used by a bad person; therefore, even if the motor backup driver 802 or the motor main driver 509 is activated by the external lock button 105, the dead bolt assembly 4 can be locked without unlocking the lock, and the purpose of unlocking the lock by the influence of the operation of the motor backup driver 802 and the motor main driver 509 by the external lock button 105 can be avoided.

According to the above technical solution, not only the standby opening of the electric mechanism 2 is realized by the external lock button 105 and the motor standby driver 802, but also the standby loop cannot be a path by which a bad person can perform a dangerous action, and the lock safety can be enhanced; secondly, the first shifting arm 600 can be separated from the dead bolt assembly 4 by using the standby circuit, which provides convenience for unlocking by using a standby manual driving mechanism, namely, the standby circuit is not used for unlocking, but only can be locked, and the unlocking obstacle is cleared for other mechanical standby unlocking means.

Further, the external controller 801 is further configured to respond to a locked-rotor signal of the electric mechanism 2, control and drive the first toggle arm 600 to reversely rotate back to the safe position through the main motor driver 509 and the electric mechanism 2, or directly control and drive the electric mechanism 2 to act and drive the first toggle arm 600 to reversely rotate back to the safe position through the standby motor driver 802 when the internal circuit board 500 fails. According to the technical scheme, when the electric mechanism 2 is locked, that is, cannot rotate forwards continuously, the first toggle arm 600 can be driven to rotate reversely to return to the safety position and cannot stay at the original position, so that the first toggle arm 600 is prevented from being stuck on the dead bolt assembly 4.

Further, a spare sensor 803 is further included, which is disposed by means of the layout space of the inner circuit board 500, the spare sensor 803 is in signal connection with the outer controller 801, and the spare sensor 803 is used for sensing a signal that the first toggle arm 600 is disengaged from the safety position of the dead bolt assembly 4 and transmitting the signal to the outer controller 801. Although the backup sensor 803 is provided on the internal circuit board 500, it is not in a direct signal connection with the power consuming elements on the circuit board, and a signal received by the backup sensor 803 is transmitted to the external controller 801. When the first main sensor 501 and the second main sensor 502 fail to transmit signals to the inner controller 5010, the inner controller 5010 feeds back an activation signal for activating the standby sensor 803 to the outer controller 801. The backup sensor 803 then senses that the first toggle arm 600 has been disengaged from the dead bolt assembly 4 and transmits a signal to the outer controller 801, and the outer controller 801 controls the electric mechanism 2 to stop working through the inner controller 5010, the main motor driver 509 or directly through the motor backup driver 802, so as to prevent the first toggle arm 600 from being disengaged and then continuously rotating over the head (reaching 360 °) and then being stuck on the dead bolt assembly 4 again. The backup sensor 803 may be an infrared sensor, a hall effect sensor, or other sensing device.

Further, the device also comprises a position display in signal connection with the outer controller 801, and the position display is used for displaying a signal that the first toggle arm 600 is disengaged from the dead bolt assembly 4 and is in a safe position. Wherein the position display may be optionally provided on the outer lock panel 102 or the inner lock panel 101. The position display can be an indicator light, an LED display screen and the like which can feed back an indicating signal to a user. Accordingly, the position signal that the first toggle arm 600 has disengaged from the dead bolt assembly 4, as represented by the position display, may be embodied as a light signal, a pattern symbol signal, or the like. By sensing the indication signal, the user can clearly know whether the first toggle arm 600 is disengaged from the tongue assembly 4, without blindly manipulating the first toggle arm 600 or the second toggle arm 71, so as to provide clear guidance for performing effective next operation.

In addition, in order to prevent the first toggle arm from being stuck in the first recess 43 and affecting the locking and unlocking operations of the second toggle arm 71, the following two schemes may be adopted:

firstly, by changing the connection structure between the first toggle device and the first toggle arm, specifically referring to the embodiment shown in fig. 12, the first toggle device 6a includes a first rotating shaft 62a and a transmission gear 63a, and the transmission gear 63a is disposed at the top end of the first rotating shaft 62 a. A clutch device 700 is further arranged in the lock housing, and the clutch device 700 comprises an inner clutch block 701, an outer clutch block 702, a clutch pin 703 capable of controlling the inner and outer clutch blocks (701, 702) to be engaged or disengaged, and a clutch pin return spring 704 arranged on the clutch pin 703 in a penetrating manner. In this embodiment, the first toggle arm 600a is not connected to the first rotating shaft 62a and the gear disk 63a but to the outer clutch plate 702. The first rotating shaft 62a is radially linked with the inner clutch block 701. In this way, the first lever arm 600a and the first rotating shaft 62a are connected in a clutched manner by the clutch 700. An electromagnet 705 is also provided below the clutch device 700. Under the power-off state of the electromagnet 705, the clutch pin 703 is inserted into the inner and outer clutch blocks (701, 702) from the bottom up under the elastic pressing action of the clutch pin return spring 704, at this time, the electric mechanism 2 can drive the first rotating shaft 62a to rotate in the forward and reverse directions through the meshing transmission between the output gear 23 and the transmission fluted disc 63a, and the first rotating shaft 62a drives the first toggle arm 600a to rotate in the forward and reverse directions through the inner and outer clutch blocks (701, 702) which are joined together. When the first toggle arm 600a is stuck in the first recess 43, power is supplied to the electromagnet 705, and the electromagnet 705 generates a magnetic field to attract the clutch pin 703 to move downward away from the inner clutch block 701 and retract completely onto the outer clutch block 702. At this time, when the clutch 700 is in the disengaged state, the transmission chain between the electric mechanism 2 and the first toggle arm 600a is disconnected, the power of the electric mechanism 2 cannot be transmitted to the first toggle arm 600a through the transmission toothed disc 63a and the first rotating shaft 62a, and at the same time, the electric mechanism a loses the limitation on the rotation of the first toggle arm 600a, and at this time, the second toggle arm 71 can drive the tongue supporting plate 41 to move, and the first toggle arm 600a is reversely driven to leave the first recess 43 in the process of moving the tongue supporting plate 41.

Secondly, as shown in fig. 2 and 3, temporary manual knob coupling portions (621, 622) are respectively disposed at the bottom ends of the transmission toothed disc 63 and the first rotating shaft 62, the temporary manual knob coupling portions (621, 622) can be coupled to a manual knob (not shown) to manually turn the first toggle device, and control windows (16, 16a) exposing the temporary manual knob coupling portions (621, 622) are respectively disposed on the upper and lower housings of the lock housing 1. Therefore, when the inner circuit board 500 and the outer circuit board 800 are failed simultaneously or the electric mechanism 2 fails to work, and the first toggle arm 71 is stuck on the dead bolt assembly 4 and cannot be removed, the manual knob is combined to the temporary manual knob combining part (621 or 622) through the control window (16 or 16a) to apply driving force to the transmission fluted disc 63 or the first rotating shaft 62, so as to control the first toggle arm 600 to rotate and then complete manual unlocking or complete unlocking through the second toggle arm 71 after the first toggle arm 600 rotates away from the dead bolt assembly 4. Of course, in other embodiments, the temporary manual knob engagement portion may be provided on only one of the transmission toothed plate 63 or the first rotating shaft 62.

As shown in fig. 2 and 13, in order to automatically complete locking when it is confirmed that the locking condition is satisfied, a first signal column 313 and a second signal column 314 for indicating the moving position of the latch head 32 are provided on the latch plate 41, and the first signal column 313 and the second signal column 314 are arranged at a left-right interval. During the movement of the signal posts (313, 314), the signal posts (313, 314) respectively form a first position that can represent the extended position of the latch tongue head 32 and a second position that can represent the retracted position of the latch tongue head 32. The device also comprises a first oblique tongue position sensor 505 arranged corresponding to the first position of the first signal post 313 and a second oblique tongue position sensor 507 arranged corresponding to the second position of the second signal post 314, wherein the first oblique tongue position sensor 505 and the second oblique tongue position sensor 507 are respectively used for receiving position signals passed by the signal posts (313 and 314) and respectively transmitting signals corresponding to the position signals to the inner controller 5010. When the inner controller 5010 receives a latch bolt retracting signal sequence which is sequentially transmitted by the first latch bolt position sensor 505 and the second latch bolt position sensor 507 and represents that the latch bolt head 32 is retracted from the outside of the lock housing 1 into the lock housing 1, and then receives a latch bolt extending signal sequence which is sequentially transmitted by the second latch bolt position sensor 507 and the first latch bolt position sensor 505 and represents that the latch bolt head 32 extends from the inside of the lock housing 1 to the outside of the lock housing 1, it is determined that the latch bolt head 32 is locked in place.

The electric lock body 100 is further provided with a door position sensor 504 for detecting a door position, the door position sensor 504 is a hall effect sensor, the door position sensor 504 is in signal connection with the internal controller 5010, and the door position sensor 504 is arranged inside the front housing 11. Of course, in other embodiments, a mounting hole may be provided in the front case 11, and the door position sensor 504 may be mounted in the mounting hole. When the door is in the closed position, the door position sensor 504 will receive the trigger signal from the inductive trigger 900 on the door frame and send a door position signal to the internal controller 5010 indicating that the door is closed. When the inner controller 5010 receives the door leaf position signal and sequentially receives the latch retraction signal sequence and the latch extension signal sequence, and automatically detects and confirms that the locking condition is met, the motor main driver 509 and the electric mechanism 2 automatically drive the latch assembly 4 to complete locking, and then the inner controller 5010 feeds back a signal of completing locking to the outer controller 801. Thus, the electric lock body 100 can be automatically locked in the door closed state, and the situation that a user forgets to lock the electric lock body after entering or leaving a house and potential safety hazards are caused is prevented. When the internal controller 5010 does not feed back a locking completion signal to the external controller 801 within a specific time, indicating that the internal circuit board 500 has a fault, the external controller 801 controls the motor backup driver 802 to activate the electric mechanism 2 to achieve locking. If the door position sensor 504 fails to transmit a door position signal to the internal controller 5010, a person standing outside the door can forcibly lock the door by the external lock button 105.

An alarm 503 is further arranged on the electric lock body 100, and the alarm 503 is in signal connection with the inner controller 501. When the inner controller 501 receives the latch bolt retraction signal sequence but does not receive the latch bolt extension signal sequence within a buffering time of 3s, the false lock phenomenon of the latch bolt assembly or the failure of the latch bolt position sensor (505 or 507) is indicated, and at the moment, the alarm 503 sends out an alarm prompt signal to remind a user of the failure. When the inner controller 5010 receives the latch retraction signal sequence and the latch extension signal sequence in sequence, but does not receive a signal indicating that the door leaf is closed sent by the door leaf position sensor 504 within the buffering time, this indicates that the door leaf is not closed in place, and the alarm 503 sends an alarm prompt signal to remind the user of paying attention. In both of the above-described failure cases, the internal controller 5010 does not drive the electric mechanism 2 to perform locking, but can perform locking outside the door by a manual drive mechanism and the external locking button 105. The alarm 503 is further configured to send an alarm prompt signal to remind a user to repair the door panel when the door panel position sensor 504 or the motor main driver 509 fails.

As shown in fig. 13, an unlocking instruction pickup device 108 is further disposed on the outer lock panel 102, and the unlocking instruction pickup device 108 may be a biological signal pickup device, a key instruction signal pickup device, or a remote unlocking instruction pickup device. The unlocking instruction pickup device 108 is in signal connection with the external controller 801, and the unlocking instruction pickup device 108 is used for picking up an unlocking instruction and transmitting an unlocking instruction signal corresponding to the unlocking instruction to the external controller 801 for verification. The outer controller 801 sends an unlocking instruction to the inner controller 5010 on the basis of verifying that the unlocking instruction signal is correct. The inner controller 5010 automatically drives the dead bolt assembly 4 to unlock through the motor main driver 509 and the electric mechanism 2, and feeds back a signal of unlocking completion to the outer controller 801. When the inner controller 5010 does not feed back an unlocking completion signal to the outer controller 801 within a specific time, indicating that the inner circuit board 500 has failed, the outer controller 801 controls the motor backup driver 802 to activate the electric mechanism 2 to unlock.

As shown in fig. 13, the inner lock panel 101 is provided with an inner unlock button 107 and an inner lock button 106, the inner unlock button 107 and the inner lock button 106 are respectively connected to the outer controller 801 by signals, the inner lock button 106 is used to forcibly lock the door, and the inner unlock button 107 is used to unlock the door. According to the above technical solution, when the internal unlocking button 107 is activated, the external controller 801 controls and drives the electric mechanism 2 to operate and unlock through the internal controller 5010 and the motor main driver 509 according to the activation signal of the internal unlocking button 107, or directly controls and drives the electric mechanism 2 to operate and unlock through the motor standby driver 802 when the internal circuit board 500 fails. When the internal unlocking button 107 is started, the external controller 801 controls and drives the electric mechanism 2 to operate and unlock through the internal controller 5010 and the motor main driver 509 according to a starting signal of the internal unlocking button 107, or directly controls and drives the electric mechanism 2 to operate and unlock through the motor standby driver 802 when the internal circuit board 500 fails. Namely, the door can be forcibly locked and unlocked.

Claims

1. The lockset with the emergency unlocking structure comprises a lock body, wherein the lock body comprises a lock shell, and the lockset is characterized in that a square tongue component for locking, a first toggle arm for driving the square tongue component to realize locking and unlocking and an electric mechanism for driving the first toggle arm to rotate are arranged in the lock shell, and the first toggle arm drives the square tongue component to lock or unlock in a toggle manner; the second shifting arm is rotatably arranged in the lock shell or directly connected to the manual driving mechanism, and when the manual driving mechanism is combined with the lock body, the second shifting arm can be driven by the manual driving mechanism to drive the square tongue component to be locked or unlocked in a shifting manner; the electric mechanism drives the first shifting arm to complete locking or unlocking and further drives the first shifting arm to be separated from the square bolt assembly and enable the first shifting arm to stay at a safe position, the first shifting arm stays at the safe position and enables the first shifting arm to avoid the square bolt assembly, and the manual driving mechanism is used for utilizing the first shifting arm to stay at the safe position and driving the square bolt assembly to move through the second shifting arm so as to lock or unlock.

2. The lock according to claim 1, characterized in that an inner circuit board is further arranged in the lock housing, an inner controller and a motor main driver in signal connection with the inner controller are arranged on the inner circuit board, and the motor main driver controls and drives the electric mechanism; the electric lock further comprises an outer lock panel and an inner lock panel, wherein an outer circuit board is further arranged on the outer lock panel or the inner lock panel, an outer controller and a motor standby driver in signal connection with the outer controller are arranged on the outer circuit board, the motor standby driver also controls and drives the electric mechanism, and the inner controller is in signal connection with the outer controller; an outer locking button is arranged on the outer locking panel and is in signal connection with the outer controller; the outer locking button is used for controlling and driving the electric mechanism to act through the inner controller and the motor main driver so as to implement forced locking outside a door according to a starting instruction of the outer locking button when the outer locking button is started, or controlling and driving the electric mechanism to act through the motor standby driver directly when the inner circuit board fails so as to implement forced locking outside the door.

3. The lock according to claim 2, further comprising a door position sensor for detecting a door position, said door position sensor being in signal connection with said inner controller, said outer lock button being adapted to perform forced locking outside the door when said door position sensor fails.

4. The lock according to claim 2, further comprising a deadbolt assembly disposed in said lock housing, a deadbolt position sensor for detecting a position of the deadbolt extension, said deadbolt position sensor in signal communication with said inner controller, said outer lock button for effecting a positive lock out of the door when said deadbolt position sensor fails.

5. The lock according to claim 2, wherein an inner unlock button and an inner lock button are provided on the inner lock panel, the inner unlock button and the inner lock button are respectively connected to the outer controller by signals, the inner lock button is used for performing forced locking in the door, and the inner unlock button is used for performing unlocking in the door.

6. The lockset of claim 2 further comprising an unlocking instruction pickup device, wherein said unlocking instruction pickup device is disposed on said external lock panel, said unlocking instruction pickup device is in signal connection with said external controller, said unlocking instruction pickup device is configured to pick up an unlocking instruction and transmit an unlocking instruction signal corresponding to the unlocking instruction to said external controller for verification.

7. The lock according to claim 2, further comprising a backup sensor disposed by a layout space of said inner circuit board, said backup sensor signal-connected to said outer controller, said backup sensor for sensing and transmitting to said outer controller a signal that said first toggle arm has been disengaged from said dead bolt assembly in a safe position.

8. The lock according to any one of claims 2 to 7, further comprising a position display in signal communication with said external controller, said position display being adapted to signal that said first toggle arm has been disengaged from said deadbolt assembly in a safe position.

9. The lock according to any one of claims 1 to 7, wherein said electric mechanism comprises a driving motor and a speed reducing mechanism driven by said driving motor, said speed reducing mechanism driving said first pick arm to rotate; still arrange the first toggle device that rotates the setting in the lock casing, first group arm setting is in on the first toggle device, be provided with output gear on reduction gears's the output shaft, first toggle device including can with output gear meshing driven transmission fluted disc, reduction gears pass through output gear with the meshing transmission drive between the transmission fluted disc first toggle device reaches first group arm forward and reverse rotation.

10. The lock according to any one of claims 1 to 7, wherein said manual driving mechanism comprises a mechanical lock cylinder unlocked by a mechanical key and an inner door knob, said inner door knob and said mechanical lock cylinder are arranged in front of each other, said second toggle arm is located between an output shaft of said inner door knob and an output shaft of said mechanical lock cylinder, said second toggle arm can extend into said lock body and can drive said dead bolt assembly to lock or unlock when said second toggle arm is rotated; the second shifting arm is connected to the output shaft of the inner knob and can rotate along with the output shaft of the inner knob, and the second shifting arm can also be connected to the output shaft of the mechanical lock cylinder and can rotate along with the output shaft of the mechanical lock cylinder after a key is inserted.

11. The lock according to any one of claims 2 to 7, wherein the external controller is further configured to control the first toggle arm to rotate in reverse back to the safe position via the main motor driver and the electric mechanism in response to a stall signal of the electric mechanism, or to control the electric mechanism to operate to drive the first toggle arm to rotate in reverse back to the safe position directly via the backup motor driver when the internal circuit board fails.