CN110056254B

CN110056254B - Structure improved electric lock body

Info

Publication number: CN110056254B
Application number: CN201910209628.5A
Authority: CN
Inventors: 马宗献
Original assignee: Guangdong Archie Hardware Co ltd
Current assignee: Guangdong Archie Hardware Co ltd
Priority date: 2019-03-19
Filing date: 2019-03-19
Publication date: 2023-08-04
Anticipated expiration: 2039-03-19
Also published as: CN110056254A

Abstract

The electric lock body with the improved structure comprises a lock shell, an electric mechanism accommodated in the lock shell, an axially moving inclined tongue component, an axially moving square tongue component and an inclined tongue reset spring capable of driving the inclined tongue component to automatically extend along the axial direction; the oblique tongue component and the square tongue component are arranged left and right, the oblique tongue component comprises an oblique tongue supporting plate and an oblique tongue part which is arranged at the front end of the oblique tongue supporting plate and is provided with an inclined plane, and the square tongue component comprises a square tongue supporting plate and a square tongue head part which is arranged at the front end of the square tongue supporting plate; the lock shell comprises a front shell, wherein the front shell is provided with a bevel tongue opening part which can enable the bevel tongue part to extend along the axial direction and a square tongue opening part which enables the square tongue head part to extend along the axial direction; the lock is characterized by further comprising a first shifting arm which is arranged in the lock shell and driven to rotate by the electric mechanism, wherein the square tongue supporting plate is provided with a first recess which can enable the first shifting arm to be screwed in and is used for being combined with the first shifting arm, and when the first shifting arm is screwed in the first recess, the square tongue supporting plate can be shifted to move forwards or backwards along the axial direction.

Description

Structure improved electric lock body

Technical Field

The invention relates to a lock body, in particular to an electric lock body, which can automatically complete locking and unlocking operations after receiving corresponding locking and unlocking instructions through an electric device such as a motor, reduces intervention of manual operation, optimizes application experience of the lock body and realizes intelligent management of the lock body.

Background

The lock body is generally provided with two lock tongues, namely a square tongue and an oblique tongue. In a general lockset design, the inclined tongue is generally called a windproof tongue and is mainly used for temporarily locking a door leaf, and the inclined tongue generally has an automatic reset function and can extend out of a lock shell without needing to drive and reset a poking arm, but the poking arm is required to drive and retract the lock shell. And the extension and retraction movements of the tongue are accomplished by actuation of the toggle arm. It follows that if unlocking is to be accomplished, both the square tongue and the oblique tongue need to be retracted into the lock housing.

Patent CN201020000742.1 discloses a three-gear transmission mechanism of a mortise door lock, which comprises a lock shell, a latch bolt assembly 1 and a square bolt assembly 2 which are arranged on the lock shell, a combined square core 3 and an intermediate gear 4 which are arranged between the latch bolt assembly 1 and the square bolt assembly 2, wherein the combined square core 3 is provided with a latch bolt pulling piece and a swinging gear 3c which can be meshed with the intermediate gear 4 for transmission, and the combined square core 3 is driven by an inner handle and an outer handle of the door to rotate. A lock cylinder gear 5 is also arranged on the left side of the square tongue assembly 1. The lock cylinder gear 5 is provided with a crank 5c and teeth 5b, and the teeth 5b are meshed with the intermediate gear 4 for transmission. When the external handle is required to be unlocked outdoors, the external handle is pressed down, the inclined tongue pulling piece rotates clockwise to retract the inclined tongue into the lock shell, meanwhile, the swinging gear 3c also rotates clockwise to drive the intermediate gear 4 to rotate, and the intermediate gear 4 drives the crank 5c to rotate clockwise to retract the inclined tongue through meshing transmission with the teeth 5b on the lock cylinder gear 5. Because the outer door handle needs to synchronously drive the inclined tongue and the square tongue to finish unlocking action, the required driving force is very large, the hand feeling is very heavy, and the unlocking operation is difficult to finish for children or the elderly.

Patent CN200810026082.1 discloses a double-bolt lock body, which comprises a shell, a bolt assembly, a square bolt assembly, a lock core and a connecting plate 5 for realizing the linkage of the bolt and the square bolt, wherein the bolt assembly, the square bolt assembly and the lock core are arranged on the shell. The square tongue assembly comprises a square tongue 41 and a walking plate 42, one end of the connecting plate 5 is fixedly arranged on the walking plate 42 through a shaft hole, and the other end of the connecting plate is provided with a clamping hook which is in transmission connection with the inclined tongue assembly. The square tongue can be retracted into the shell by rotating a shifting fork on the lock cylinder clockwise, and the inclined tongue can be retracted by rotating the shifting fork clockwise to shift the connecting plate 5. The order of retrieving the tongue and the tongue is not disclosed. In any case, the connection board 5 always maintains a connection relationship with the walking board 42 and the latch assembly, so that the operation of the latch assembly is inevitably interfered by the connection board 5 in the moving process of the walking board 42, and even the latch assembly is blocked between the walking board 42 and the latch assembly, thereby affecting the normal operation of the whole lock body.

Disclosure of Invention

In the conventional lock body, not only are the inclined tongue and the square tongue arranged, but also a multi-stage transmission mechanism for driving the inclined tongue and the square tongue to complete unlocking and locking actions and a shifting arm for providing driving force for the transmission mechanism are arranged, the transmission mechanism is a power transmission chain among the inclined tongue, the square tongue and the shifting arm, if one ring is wrong, misoperation of the inclined tongue or the square tongue can be caused, so that how to arrange a reasonable transmission mechanism is crucial, and how to operate the inclined tongue and the square tongue actions with a transmission structure as simple as possible and through the driving force as small as possible is a technical problem that further consideration is needed.

In view of the above, the present invention proposes an electric lock body with an improved structure, the lock body including a lock housing, an electric mechanism accommodated in the lock housing, an axially movable latch assembly, an axially movable square tongue assembly, and a latch return spring capable of driving the latch assembly to automatically extend in an axial direction; the inclined tongue component and the square tongue component are arranged left and right, the inclined tongue component comprises an inclined tongue supporting plate and an inclined tongue part which is arranged at the front end of the inclined tongue supporting plate and is provided with an inclined plane, and the square tongue component comprises a square tongue supporting plate and a square tongue head part which is arranged at the front end of the square tongue supporting plate; the lock housing comprises a front housing, wherein a bevel tongue opening part capable of enabling the bevel tongue head to extend along the axial direction and a square tongue opening part capable of enabling the square tongue part to extend along the axial direction are arranged on the front housing; it is characterized in that the method comprises the steps of,

the lock comprises a lock shell, a square tongue supporting plate and a first shifting arm, wherein the first shifting arm is arranged in the lock shell and driven by an electric mechanism to rotate, a first recess which can enable the first shifting arm to be screwed in and is used for being combined with the first shifting arm is formed in the square tongue supporting plate, and when the first shifting arm is screwed in the first recess, the square tongue supporting plate can be shifted to move forwards or backwards along the axial direction;

The sliding part is arranged in the lock shell, and can drive the sliding part to automatically reset forwards along the axial direction, the sliding part can slide forwards and backwards along the axial direction, when the square tongue supporting plate moves backwards, the square tongue supporting plate can move backwards along with the sliding part, and an auxiliary recess which can enable the first shifting arm to be screwed in and is used for combining with the first shifting arm is arranged on the sliding part, and the auxiliary recess is positioned in front of the first recess; the sliding part is also provided with a sliding part poking arm for poking the inclined tongue supporting plate, the inclined tongue supporting plate is provided with a poking combination part for combining the sliding part poking arm, and a front avoidance space for avoiding the sliding part poking arm to move forwards and backwards along the axial direction is reserved in front of the poking combination part;

the first shifting arm is a driving arm which can rotate clockwise or anticlockwise under the driving of the electric mechanism, so that the operation of hands can be omitted, and the convenience of locking and unlocking operations is improved.

The first concave is a special structure for combining the first shifting arm, and can be a concave formed between tooth-shaped bulges or a concave pit formed directly on the bolt supporting plate; the first concave part can be one or more than two. The auxiliary recess has substantially the same structure as the first recess.

Wherein the sliding member is an intermediate transition power transmission member between the first shifting arm and the tongue supporting plate, but the first shifting arm can not transmit driving force to the tongue supporting plate through the sliding member in any caseRetraction ofThe inclined tongue head part is provided with a first shifting arm which passes through the sliding pieceRetraction ofThe oblique tongue portion needs to meet the following conditions: when the square tongue supporting plate moves back to the retracted position, the sliding part is driven to move back to the position, so that the auxiliary recess enters the rotation range of the first shifting arm and the sliding part shifting arm can be combined or approaches to the shifting combining part. At this time, the first shifting arm is screwed into the auxiliary recess and can drag the inclined tongue supporting plate to retract the inclined tongue head through the sliding piece shifting arm when the first shifting arm continues to rotate anticlockwise. Until this condition is met, rotation of the first dial arm and movement of the tongue blade do not interfere with movement of the tongue blade. The square tongue head and the inclined tongue are respectively in a required locking or unlocking state according to the respective requirements. It is also noted that the tongue blade also retracts the tongue portion into the lock housing as the tongue blade moves back to bring the slide back into position. From the following components As can be seen, upon actuation of the first dial arm, the Fang Shetou portion is retracted into the lock housing prior to the tongue portion, with the tongue assembly and the tongue assembly forming a step-wise linkage relationship.

According to the technical scheme, when the extended square tongue head and the inclined tongue head need to be retracted, the electric mechanism drives the first shifting arm to be screwed into the first concave part at first and can shift the square tongue supporting plate backwards and retract the square tongue part into the lock shell when the first shifting arm continuously rotates anticlockwise, at the moment, the sliding piece and the auxiliary concave part thereof also move backwards along with the square tongue supporting plate in place and the sliding piece shifting arm can be combined or close to the shifting combining part, further, the first shifting arm is continuously driven to rotate anticlockwise for one circle, and when the first shifting arm can be continuously screwed into the auxiliary concave part and continuously rotates anticlockwise, the first shifting arm shifts the sliding piece to continuously move backwards, and the sliding piece continuously moved backwards can drag the inclined tongue part to be retracted into the lock shell through the shifting combining part; further, when the electric mechanism drives the first shifting arm to rotate clockwise and separate from the auxiliary recess, the sliding piece and the inclined tongue component are released, the sliding piece is reset forward under the drive of the sliding piece reset spring, the inclined tongue component is reset forward under the drive of the inclined tongue reset spring, and the inclined tongue part axially extends out of the front shell from the inclined tongue opening part.

According to the technical scheme, compared with the prior art, the invention has the beneficial technical effects that: firstly, in the unlocking process, the sequence of the square tongue head and the inclined tongue part which are retracted into the lock shell is orderly divided, namely, the square tongue head and the inclined tongue part do not need to be simultaneously retracted into the lock shell, and compared with the driving force required by simultaneously retracting the square tongue head and the inclined tongue head, the driving force applied to the first shifting arm by the electric mechanism is smaller, and the electric mechanism can be completed by a driving mechanism with smaller power, so that the energy consumption is saved. Secondly, if the inclined tongue head needs to be retracted through the first shifting arm, the requirement that the square tongue supporting plate is retracted in place needs to be met, the auxiliary recess of the sliding piece enters the rotation range of the first shifting arm, otherwise, the inclined tongue head cannot be retracted through the first shifting arm, and at the moment, the first shifting arm can only shift the square tongue supporting plate to move but cannot shift the inclined tongue supporting plate to move. In this way, the transmission relation between the first shifting arm and the latch blade is adjusted through the displacement change of the sliding shifting piece, so that the problem that the moving latch blade is erroneously interfered to the latch blade under an improper condition, and the latch blade is blocked or the locking or unlocking state of the latch head is erroneously changed is avoided. In summary, the lock body realizes the relatively independent movement between the square tongue supporting plate and the inclined tongue supporting plate by a simple transmission structure.

Further technical scheme can also be, still include the first toggle device that rotates the setting, first toggle device is including the transmission fluted disc that can rotate, first toggle arm setting on first toggle device and can with the synchronous rotation of transmission fluted disc, be provided with on electric mechanism's the output shaft can with transmission fluted disc meshing driven output gear, electric mechanism pass through output gear with meshing transmission drive between the transmission fluted disc first toggle arm forward and reverse rotation. Therefore, the first shifting arm can be driven to rotate forward and backward 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 meshing relationship between the output gear and the transmission fluted disc after the electric mechanism stops working, so that the first shifting arm is prevented from rotating randomly to influence the operation of other components.

The further technical scheme may be that the first toggle device further comprises a first rotating shaft, the first toggle device is rotatably arranged in the lock shell through the first rotating shaft, the transmission fluted disc is arranged at the top end of the first rotating shaft, and the first toggle arm is connected to the first rotating shaft or/and the transmission fluted disc. In this way, the first rotating shaft provides positioning support for the transmission fluted disc, so that the rotation resistance between the transmission fluted disc and the lock shell is reduced.

Further, the first long hole adapted to the first rotating shaft is formed in the tongue supporting plate, and the first long hole is arranged in the front-rear direction so as to guide the tongue supporting plate to move forwards and backwards along the axial direction by means of the first rotating shaft.

The further technical scheme may further include a second positioning shaft disposed in the lock housing, the latch support plate is provided with a second long hole adapted to the second positioning shaft, and the second long hole is disposed along a front-rear direction so as to guide the latch support plate to move forward and backward along the shaft by means of the second positioning shaft. Thus, the first rotating shaft and the second positioning shaft can cooperatively guide the inclined tongue supporting plate, and the sliding stability of the inclined tongue supporting plate is improved.

Further technical scheme can also be that still be provided with interim manual knob joint portion on the transmission fluted disc or/and the bottom of first pivot, thereby interim manual knob joint portion can with manual knob combination manual twist turn first toggle device be provided with on the lock casing and expose the window of controlling of interim manual knob joint portion. Thus, when the electric lock body fails and can not be unlocked through the first shifting device and a second shifting device to be discussed below, the manual knob can be combined to the temporary manual knob combining part through the control window to apply driving force to the transmission fluted disc or the first rotating shaft so as to control the first shifting arm to rotate, and then manual unlocking is completed or the first shifting arm is rotated to be separated from the square bolt supporting plate.

Further technical scheme may be that the lock further comprises a clutch arranged in the lock shell, the first poking device further comprises a first rotating shaft, the transmission fluted disc is arranged at the top end of the first rotating shaft, and the first poking arm is connected with the first rotating shaft through the clutch. The clutch has various structural forms, and the prior art generally comprises an inner clutch block, an outer clutch block and a clutch pin capable of controlling the engagement or disengagement of the inner clutch block and the outer clutch block, and the specific structure can be seen in the clutch of patent 201410102194.6. When the clutch is in an engaged state, the power of the electric mechanism can be transmitted to the first shifting arm through the transmission fluted disc and the first rotating shaft. When the clutch is in a separation state, a transmission chain between the electric mechanism and the first shifting arm is disconnected, the power of the electric mechanism cannot be transmitted to the first shifting arm through the transmission fluted disc and the first rotating shaft, and meanwhile the electric mechanism also loses the limit on the rotation of the first shifting arm. When the first shifting arm is blocked on the first recess due to the failure of the electric mechanism, the second shifting device, which will be discussed below, can drive the square tongue supporting plate to move, and the first shifting arm is reversely driven to leave the first recess during the moving process of the square tongue supporting plate.

The sliding piece and the sliding piece reset spring are arranged on the square tongue supporting plate and are positioned below the square tongue supporting plate, wherein the sliding piece is arranged on the square tongue supporting plate in a sliding mode, and therefore when the square tongue supporting plate moves forwards and backwards along the axial direction, the sliding piece can be carried along with the sliding piece to move forwards and backwards along the axial direction. Therefore, the sliding part reset spring and the square tongue supporting plate are in a vertically overlapped relation, so that occupation of an installation space can be reduced. Secondly, the sliding part and the sliding part reset spring are arranged on the square tongue supporting plate, and when the square tongue supporting plate carries the sliding part to move forwards and backwards along the axial direction, the square tongue supporting plate does not need to overcome the elastic resistance of the sliding part reset spring, so that the energy consumption of the electric mechanism can be further reduced.

The further technical scheme may be that the first recess comprises two first sub-recesses arranged in the front-rear direction, the two first sub-recesses are separated by a protruding tooth, and the protruding tooth is arranged on the square tongue supporting plate; the two first sub-recesses are located behind the auxiliary recess and the front first sub-recess is separated from the auxiliary recess by a further protruding tooth, which is arranged on the slide. Thus, the first poking arms rotating for two weeks can be combined to the two first sub-recesses in sequence to poke the square tongue supporting plate to perform secondary axial movement, so that the axial extension length of the square tongue head can be increased, and the anti-prying performance of the lock body is improved.

Further technical scheme may be that the square tongue supporting plate is arranged in a wide manner in the left-right direction, two square tongue heads are arranged on the square tongue supporting plate, and the widths of the two square tongue heads in the left-right direction are different. Thus, the Fang Shetou portion fully utilizes the wide space provided by the lock body to provide a large width, wherein one tongue portion has a larger width than the other tongue portion, and the resistance to violent damage to the tongue can be greatly improved.

The further technical scheme is that the lock comprises a clamping plate and a clamping plate reset spring, wherein the clamping plate is arranged in the lock shell, the clamping plate reset spring can drive the clamping plate to reset automatically, an axial locking device is arranged between the clamping plate and the square tongue supporting plate, the clamping plate is matched with the square tongue supporting plate through the axial locking device to lock the square tongue supporting plate axially, when the clamping plate is moved away, the axial locking device fails to enable the square tongue supporting plate to move forwards and backwards along the axial direction, and when the clamping plate is reset, the axial locking device can lock the square tongue supporting plate axially to enable the square tongue supporting plate not to move forwards and backwards along the axial direction; the clamping plate comprises a side edge extending to the first recess, and the orthographic projection of the side edge is overlapped with the orthographic projection of the first recess when seen in the front view direction; when the first shifting arm is screwed into the first recess, the first shifting arm can be combined to one side edge and push the clamping plate to move so that the axial locking device fails to release the axial locking of the square tongue supporting plate, and when the first shifting arm leaves the first recess, the clamping plate reset spring can drive the clamping plate to automatically reset to axially lock the square tongue supporting plate so that the square tongue supporting plate cannot move forwards and backwards along the axial direction.

According to the scheme, when the electric mechanism drives the first shifting arm to be screwed into the first recess and continuously rotates clockwise, the clamping plate can be pushed by the first shifting arm to move and release the axial locking of the square tongue supporting plate, the first shifting arm can shift the square tongue supporting plate to move forwards, the square tongue head part also axially extends out of the lock shell from the square tongue opening part, and at the moment, the sliding piece also moves forwards along with the square tongue supporting plate and the sliding piece shifting arm freely moves in the front avoidance space; when the electric mechanism drives the first shifting arm to rotate into the first concave part and rotate continuously in the anticlockwise direction, the clamping plate can be pushed and moved by the first shifting arm to enable the axial locking device to fail and release the axial locking of the square tongue supporting plate, the first shifting arm can shift the square tongue supporting plate to move backwards and retract the square tongue part into the lock shell, at the moment, the sliding piece and the auxiliary concave part thereof also move backwards along with the square tongue supporting plate in place and the sliding piece shifting arm can be combined to the shifting combining part, and further when the first shifting arm rotates continuously in the anticlockwise direction for one circle to rotate into the auxiliary concave part and rotates continuously in the anticlockwise direction, the first shifting arm not only can push and move the clamping plate but also can shift the sliding piece continuously backwards, and the sliding piece which moves backwards can drag the inclined tongue part to retract into the lock shell through the shifting combining part.

The further technical scheme can be that the electric lock further comprises a second poking device arranged on the electric lock body, wherein the second poking device is arranged at a left-right interval with the first poking device, and the second poking device comprises a second poking arm capable of rotating forward and backward; the square tongue supporting plate is provided with a second recess which can enable the second shifting arm to be screwed in and be used for being combined with the second shifting arm, the clamping plate further comprises another side edge which extends to the second recess, and the orthographic projection of the other side edge is overlapped with the orthographic projection of the second recess when seen in the front view direction; when the second shifting arm is screwed into the second recess, the second shifting arm can be combined to the other side edge and push the clamping plate to move so that the axial locking device fails, the axial locking of the square tongue supporting plate is released, the square tongue supporting plate can be further shifted forward or backward, and when the second shifting arm leaves the second recess, the clamping plate reset spring can drive the clamping plate to automatically reset to axially lock the square tongue supporting plate so that the square tongue supporting plate cannot move forward or backward along the axial direction;

the device also comprises a middle sliding piece arranged on the square tongue supporting plate in a sliding way and a sliding piece reset spring capable of driving the middle sliding piece to reset automatically; the middle sliding piece comprises a hook arm used for being combined with the second shifting arm, and further comprises a lever piece rotatably arranged on the lock shell, wherein the tail end of the lever piece extends to the inclined tongue supporting plate and can be propped against the inclined tongue supporting plate, the front end of the lever piece is provided with an upright part capable of being combined with the middle sliding piece, and the upright part avoids an axial front-back moving path of the middle sliding piece; when the square tongue supporting plate axially stretches out to move forwards with the middle sliding piece, the front end of the lever piece and the vertical part can avoid the square tongue supporting plate and the middle sliding piece, when the square tongue supporting plate moves backwards with the middle sliding piece in place, the hook arm of the middle sliding piece is located in the rotation range of the second pulling arm and rotates the second pulling arm, the second pulling arm pulls the hook arm to enable the middle sliding piece to be pulled to slide, the sliding middle sliding piece can be combined with the vertical part and can drive the lever piece to rotate through the vertical part, and the rotating lever piece can push the inclined tongue supporting plate to move backwards to retract the inclined tongue head into the lock shell.

According to the technical scheme, the second toggle device is used as the other bolt driving device of the lock body, and when the electric mechanism fails and cannot drive the first toggle arm to act, the actions of the inclined bolt component and the square bolt component can be controlled through the second toggle device. When the second shifting arm is rotated forward to screw in the second recess, the second shifting arm can be combined to the other side edge and push the clamping plate to move, so that the axial locking device is disabled, the axial locking of the square tongue supporting plate is released, the square tongue supporting plate can be further shifted forward, the square tongue head part extends out of the front shell from the square tongue opening part, meanwhile, the square tongue supporting plate moves forward with the middle sliding piece, and when the second shifting arm leaves the second recess, the clamping plate reset spring can drive the clamping plate to reset automatically to axially lock the square tongue supporting plate, so that the square tongue supporting plate cannot move forward and backward along the axial direction. When the second shifting arm is reversely rotated to screw into the second recess, the second shifting arm is combined to the other side edge again and pushes the clamping plate to move so that the axial locking device is disabled, the axial locking device is released, the square tongue supporting plate can be further pushed to move backwards to drag the square tongue part to retract into the lock shell, meanwhile, the square tongue supporting plate moves backwards with the middle sliding piece, when the middle sliding piece moves backwards to be in place, the hooking arm of the middle sliding piece is located in the rotation range of the second shifting arm and rotates the second shifting arm, the second shifting arm pushes the hooking arm to enable the middle sliding piece to slide in a traction mode, the sliding middle sliding piece can be combined to the vertical portion and can drive the lever piece to rotate through the vertical portion, and the rotating lever piece can push the inclined tongue to move backwards to retract into the lock shell. When the second shifting arm is rotated to leave the hook arm, the middle sliding piece is automatically reset under the drive of the sliding piece reset spring, and the inclined tongue supporting plate is reset under the action of the inclined tongue reset spring to extend the inclined tongue part out of the lock shell again.

Further, the second recess may further include two second sub-recesses arranged in a front-rear direction, the two second sub-recesses are separated by a protruding tooth, and the protruding tooth is disposed on the tongue supporting plate. In this way, the second shifting arms rotating for two weeks can be combined to the two second sub-recesses in sequence to shift the square tongue supporting plate to perform secondary axial movement, so that the axial extension length of the square tongue head can be increased as well, and the anti-picking performance of the lock body is improved.

The further technical scheme may be that the second shifting device comprises a mechanical lock cylinder opened by a mechanical key, and the second shifting arm is connected to an output shaft of the mechanical lock cylinder and can rotate along with the output shaft of the mechanical lock cylinder. Thus, the second shifting arm can be driven to rotate forward and backward after the mechanical key passes the unlocking verification of the mechanical lock cylinder. When the electric mechanism fails or is insufficient in power, the second shifting device can be used as a standby device to replace the first shifting arm to complete locking and unlocking operations. In industry definitions, there are also locks that refer to the lock cylinder as a lock head.

The second shifting device comprises an in-door knob and a mechanical lock cylinder which is opened by a mechanical key, wherein the in-door knob and the mechanical lock cylinder are arranged front and back, the second shifting arm is positioned between an output shaft of the in-door knob and an output shaft of the mechanical lock cylinder, and can extend into the lock body and can drive the square tongue component to lock or unlock when the second shifting arm rotates; the second shifting arm is connected to the output shaft of the in-door knob and can rotate along with the output shaft of the in-door knob, and can be simultaneously connected to the output shaft of the mechanical lock cylinder and can rotate along with the output shaft of the mechanical lock cylinder after the key is inserted. According to the technical scheme, the second shifting arm and the output shaft of the mechanical lock cylinder are in variable connection, the second shifting arm can be simultaneously connected to the output shaft of the mechanical lock cylinder and the output shaft of the door inner knob under the condition of inserting a key, and the second shifting arm and the door inner knob can be driven to rotate by twisting the key; otherwise, the second shifting arm is in a separation relation with the output shaft of the mechanical lock cylinder, and when the in-door knob is rotated at the moment, the second shifting arm rotates along with the output shaft of the in-door knob and is not limited by the rotation of the mechanical lock cylinder.

Further technical scheme may be that the clamping plate and the square tongue supporting plate are arranged up and down, middle gaps are respectively formed in the clamping plate and the square tongue supporting plate, and the second shifting device is arranged in the middle gaps. In this way, the middle gap provides an installation space for the second toggle device, which is beneficial to reducing the whole volume of the lock body, and the arrangement of the middle gap is also beneficial to strengthening the axial bearing capacity of the square bolt supporting plate.

Further technical solution may be that the latch plate and the tongue supporting plate are arranged up and down, the axial locking device includes a protrusion arranged on the tongue supporting plate or the latch plate and facing each other, and further includes third recesses arranged on the tongue supporting plate or the latch plate and adapted to the protrusion, the number of the third recesses is greater than the number of the first recesses, and a step length of the third recesses in a front-rear direction is approximately the same as a step length of the first recesses. The protrusion and the third recess are respectively arranged on the square tongue supporting plate and the clamping plate, namely, the protrusion is arranged on the square tongue supporting plate and faces the clamping plate, and the third recess is arranged on the clamping plate; or, the protrusion is disposed on the clamping plate and faces the square tongue supporting plate, and the third recess is disposed on the square tongue supporting plate.

According to the technical scheme, a vertical face facing to the rear is further arranged on the square tongue assembly, a rotating arm and a rotating arm reset spring capable of pushing the rotating arm to rotate out for reset are further rotatably arranged in the lock shell, and when the rotating arm rotates out for reset, the top end of the rotating arm can be propped against the vertical face, so that axial moment of the square tongue assembly pressed back axially can be improved in cooperation with the axial locking device; the clamping plate is also provided with a pushing arm capable of pushing the top end of the rotating arm to leave the vertical face, and a joint point between the pushing arm and the rotating arm is positioned between the rotating shaft of the rotating arm and the top end of the rotating arm; when the clamping plate is pushed to move so that the axial locking device is disabled to release the axial locking of the square tongue supporting plate, the clamping plate synchronously pushes the top end of the rotating arm to leave the vertical face through the pushing arm so as to be convenient for retracting the square tongue assembly.

According to the technical scheme, in the locked state, when the Fang Shetou part extends out of the lock shell, the rotating arm is kept at the reset position under the action of the rotating arm reset spring, and the top end of the rotating arm can be propped against the vertical surface, so that the axial moment of the axially pressed-back square tongue assembly can be improved by cooperating with the axial locking device. When unlocking is needed, the first shifting arm rotates anticlockwise to push the clamping plate to move so that the axial locking device fails, the axial locking of the square tongue supporting plate is released, meanwhile, the top end of the rotating arm is pushed to leave the vertical face through the pushing arm, and at the moment, the first shifting arm is combined with the first recess to continuously rotate to retract the square tongue head. And then the first shifting arm leaves the first recess, the clamping plate reset spring drives the clamping plate to automatically reset and axially lock the square tongue supporting plate again, and the top of the rotating arm keeps a state of leaving the vertical face.

Drawings

FIG. 1 is an exploded view of a lock with an emergency unlocking mechanism employing the technical scheme of the present invention;

fig. 2 is a schematic diagram of an internal structure of the electric lock body 100 according to the technical scheme of the present invention, in which the square tongue is in an unlocked state;

fig. 3 is a schematic view of the internal structure of the electric lock body 100, wherein the tongue part is in a locked state, and the first striking device 6, the inner circuit board 500 and the electric mechanism 2 are omitted;

fig. 4 is a schematic perspective view of the first striking device 6, and the first striking device 6 is provided with a first striking arm 600;

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

FIG. 6 is a schematic diagram of an assembled configuration of the tongue assembly 4, the intermediate slider 300, and the sled 400;

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

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

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

fig. 10 is an exploded view of the second toggle means 7;

FIG. 11 is a schematic view of the internal structure of the electric lock body 100, wherein the second shifting arm 71 and the latch plate 31 are omitted for clarity of the transmission relationship, and the latch assembly, the intermediate slider 300, the sliding member 400, etc. are omitted;

FIG. 12 is a schematic view of another connection structure between the first toggle device and the first toggle arm;

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

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

Detailed Description

The structure of the lockset with the emergency unlocking structure and the electric lock body thereof, which are applied to the technical scheme of the invention, are further described below with reference to the accompanying drawings.

As shown in fig. 1, 2 and 3, the lock with the emergency unlocking structure comprises an inner lock panel 101 facing indoors, an outer lock panel 102 facing outdoors, and an electric lock body 100 arranged between the inner lock panel 101 and the outer lock panel 102, wherein the electric lock body 100 is generally buried in a door leaf; the electric lock body 100 comprises a lock shell 1, wherein an axially moving latch bolt assembly 3, an axially moving square bolt assembly 4 and a latch bolt reset spring 5 which can drive the latch bolt assembly 3 to automatically extend along the axial direction are contained in the lock shell 1. The oblique tongue component 3 is arranged left and right with the square tongue component 4.

The tongue component 3 comprises a tongue supporting plate 31 and a tongue slanting portion 32 which is arranged at the front end of the tongue supporting plate 31 and has an inclined surface. The lock housing 1 is provided with a second positioning shaft 14, the latch blade 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 along the front-rear direction so as to guide the latch blade 31 to move forward and backward along the axial direction by means of the first rotating shaft 62 and the second positioning shaft 14 respectively, thereby improving the sliding stability of the latch blade 31. The lock housing 1 includes a front housing 11, and a tongue opening (not shown) is provided in the front housing 11 to allow the tongue portion 32 to extend in the axial direction.

As shown in fig. 3 and 4, the tongue assembly 4 includes a tongue supporting plate 41 and two tongue heads (421, 422) provided at the front ends of the tongue supporting plate 41. The tongue supporting plate 41 is arranged widely in the left-right direction, and the widths of the two tongue heads 421 and 422 in the left-right direction are different, and the width of the tongue head 421 is larger than the width of the Fang Shetou part 422. In this way, the two tongue heads (421, 422) make full use of the wide space of the lock body 100 to provide a large width, wherein the tongue head 421 has a width greater than the Fang Shetou part 422, so as to greatly improve the capability of resisting violent damage to the tongue. The front housing 11 is provided with a tongue opening (not shown) through which the tongue head 42 extends in the axial direction. The two tongue heads (421, 422) are collectively referred to below as tongue heads 42.

As shown in fig. 2, 3 and 4, the lock housing 1 further includes a first toggle device 6 rotatably disposed therein, the 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 driving motor 21 and a speed reduction mechanism 22 driven by the driving motor 21. The first shifting device 6 comprises a first rotating shaft 62 and a transmission fluted disc 63 arranged at the top end of the first rotating shaft 62, and the first shifting device 6 is rotatably arranged in the lock housing 1 through the first rotating shaft 62. The first shifting arm 600 is simultaneously connected to the first rotating shaft 62 and the driving gear disc 63 and rotates synchronously with the driving gear disc 63. Of course, in other embodiments, it is also possible for the first shifting arm 600 to be provided only on the first rotary shaft 62 or on the transmission toothed disk 63. The first shifting arm 600 drives the square tongue assembly 4 to be locked and unlocked normally in a shifting manner and is separated from the square tongue assembly 4 after the locking and unlocking are completed, and the first shifting arm 600 can also retract the inclined tongue assembly 3. The output shaft of the speed reducing mechanism 22 is provided with an output gear 23 capable of being meshed with the transmission fluted disc 63 for transmission, the electric mechanism 2 drives the first poking device 6 and the first poking arm 600 to rotate forward and backward through the meshing transmission between the output gear 23 and the transmission fluted disc 63, and in addition, the first poking 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 poking 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 supporting plate 41 is provided with a first recess 43 for enabling the first pulling arm 600 to be screwed in and combined with the first pulling arm 600, and when the first pulling arm 600 is screwed in the first recess 43 and rotated in a clockwise or counterclockwise direction, the tongue supporting plate 41 can be pulled to move forward or backward in an axial direction. A sliding member 400 and a sliding member return spring 54 capable of driving the sliding member 400 to automatically return forward in the axial direction are provided below the square tongue supporting plate 41. The lower side wall of the square tongue supporting plate 41 is provided with first spring positioning columns 411, sliding part guide columns (412 and 413) which are arranged at intervals, the sliding part 400 is provided with sliding part connecting arms 403 and guide grooves (404 and 405) which are matched with the sliding part guide columns (412 and 413), one end of a sliding part return spring 54 is connected with the first spring positioning columns 411, the other end of the sliding part return spring is connected with the sliding part connecting arms 403, and the sliding part 400 is sleeved on the sliding part guide columns (412 and 413) in a penetrating mode through the guide grooves (404 and 405), so that the sliding part is arranged on the square tongue supporting plate 41 in a sliding mode. The blade 41 can move axially back and forth with the slider 400 and slider return spring 54 as it moves axially back and forth. In this way, the sliding member 400, the sliding member return spring 54 and the tongue supporting plate 41 are in a vertically stacked relationship, so that the occupation of the installation space can be reduced. Second, when the tongue supporting plate 41 moves forward and backward along the axial direction with the sliding member 400, the tongue supporting plate 41 does not need to overcome the elastic resistance of the sliding member return spring 54, so that the energy consumption of the electric mechanism 2 can be reduced. An auxiliary recess 406 is further provided on the sliding member 400, which enables the first shifting arm 600 to be screwed in and is used for combining the first shifting arm 600, and the auxiliary recess 406 is positioned in front of the first recess 43. The sliding part 400 is further provided with a sliding part poking arm 401 for poking the inclined tongue supporting plate 31, the inclined tongue supporting plate 31 is provided with a poking combining part 315 for combining the sliding part poking arm 401, and a front avoidance space 316 for avoiding the sliding part poking arm 401 to move forwards and backwards along the axial direction is reserved in front of the poking combining part 315. Of course, in other embodiments, the sliding member 400 and the sliding member return spring 54 may also be disposed on the lock housing 11, where the sliding member 400 is moved in the backward direction against the elastic resistance of the sliding member return spring 54 when the tongue supporting plate 41 is moved in the backward direction, and the sliding member 400 is automatically reset in the forward direction along the axial direction under the driving of the sliding member return spring 54 when the tongue supporting plate 41 is moved in the forward direction.

As shown in fig. 2, 3 and 8, a latch plate 9 and a latch plate return spring 52 capable of driving the latch plate 9 to automatically return are further disposed in the lock housing 1, the latch plate 9 and the square tongue supporting plate 41 are arranged up and down, an axial locking device is disposed between the latch plate 9 and the square tongue supporting plate 41, and the latch plate 9 is matched with the axial locking device to axially lock the square tongue supporting plate 41. The axial locking means comprise a projection 47 provided on the blade carrier 41 and facing the detent plate 9, and a third recess 92 provided on the detent plate 9, which fits into the projection 47. In the present embodiment, the number of the third recesses 92 is 3, the number of the first recesses 43 is 2, the number of the third recesses 92 is greater than the number of the first recesses 43 and the stride length of the third recesses 92 in the front-rear direction is substantially the same as the stride length of the first recesses 43. Of course, in other embodiments, the projections 47 and the third recesses 92 may be interchanged, i.e. a projection 47 facing the tongue plate 41 is provided on the detent plate 9 and a third recess 92 adapted to the projection 47 is provided on the detent plate 9. The detent plate 9 further comprises a side 94 extending into the first recess 43, wherein the front projection of the side 94 overlaps the front projection of the first recess 43 when seen in a front view. When the first shifting arm 600 is screwed into the first recess 43, the first shifting arm 600 can be combined to the one side edge 94 and push the clamping plate 9 to move, so that the axial locking device is disabled, the axial locking of the square tongue supporting plate 41 is released, the square tongue supporting plate 41 can move back and forth along the axial direction, and when the first shifting arm 600 leaves the first recess 43, the clamping plate reset spring 52 can drive the clamping plate 9 to reset and axially lock the square tongue supporting plate 41 so that the square tongue supporting plate 41 cannot move back and forth along the axial direction.

As shown in fig. 3, 5 and 9, a vertical surface 49 facing to the rear is further provided on the tongue assembly 4, and a rotating arm 8 and a rotating arm return spring 51 capable of pushing the rotating arm 8 to rotate out for return are further rotatably provided in the lock housing 1. The rotating arm 8 is provided with a shaft hole 83 and an avoidance 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 to the lock housing 1, and the rotation arm 8 is rotatably provided to the rotation shaft 12 through a shaft hole 83. One end of the rotating arm return spring 51 is sleeved on the connecting protrusion 82, and the other end is propped against the left vertical side wall of the lock housing 1. When the pivoting arm 8 is pivoted out of the way, its tip 81 can bear against the elevation 49, so that the axial moment of the tongue assembly 4 pressed back axially can be increased in cooperation with the axial locking device. The clamping 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 face 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 detent plate 9 is pushed to disable the axial locking means to release the axial locking of the tongue supporting plate 41, the detent plate 9 simultaneously pushes the top end of the rotating arm 8 away from the elevation 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 a state where the tongue head 42 and the tongue head 32 are protruded out of the lock case 1, the rotating arm 8 is rotated out to be reset by the rotating arm reset spring 51, and the tip 81 thereof is abutted against the elevation 49. The latch plate 9 is reset under the action of the latch plate reset spring 52, and the axial locking device axially locks the square tongue supporting plate 41 from moving back and forth along the axial direction. The lock body 100 is now in the locked state. When unlocking is needed, the electric mechanism 2 drives the first shifting arm 600 to screw into the first recess 43 and rotate continuously in the anticlockwise direction, the clamping plate 9 is pushed by the first shifting arm 600 to disable the axial locking device and release the axial locking of the square tongue supporting plate 41, meanwhile, the pushing arm 91 pushes the top end 81 of the rotating arm 8 to leave the elevation 49, the first shifting arm 600 pushes the square tongue supporting plate 41 to move backwards and retract the square tongue head 42 into the lock housing 1, at this time, the sliding element 400 and the auxiliary recess 406 thereof also move backwards along with the square tongue supporting plate 41 into position, and the sliding element shifting arm 401 can be combined with (or basically approach) the stirring combining part 315, and when the first shifting arm 600 rotates continuously in the anticlockwise direction and rotates continuously in the anticlockwise direction, the first shifting arm 600 can not only push the clamping plate 9 (at this time, the sliding element 400 can not be pushed by the sliding element 400 again) and can continue to move back into the sliding element 32 after the sliding element 400 is combined with the sliding element 400. When the latch supporting plate 31 moves backward in place, the electric mechanism 2 drives the first shifting arm 600 to rotate clockwise and separate from the auxiliary recess 406, the sliding piece 400 and the latch assembly 3 are released, the sliding piece 400 is reset forward under the driving of the sliding piece reset spring 54, the latch assembly 3 is reset forward under the driving of the latch reset spring 5, and the latch tongue portion 32 axially extends out of the front housing 11 from the latch tongue opening. Meanwhile, the latch plate return spring 52 can drive the latch plate 9 to automatically return to axially lock the square tongue supporting plate 41 from moving forwards and backwards along the axial direction.

If the tongue head 42 needs to be locked again on the basis of the above, the electric mechanism 2 drives the first shifting arm 600 to screw into the first recess 43 and rotate continuously in the clockwise direction, the clamping plate 9 can be pushed by the first shifting arm 600 to move and unlock the axial locking of the tongue supporting plate 41, the first shifting arm 600 rotates continuously in the clockwise direction to shift the tongue supporting plate 41 to move forwards, the tongue head 42 extends out of the lock housing 1 from the tongue opening part along the axial direction, and at the moment, the sliding piece 400 moves forwards along with the tongue supporting plate 41 and the sliding piece shifting arm 401 moves freely in the front avoidance space 316. After which the first shifter arm 600 continues to rotate clockwise away from the first recess 43. The latch plate return spring 52 drives the latch plate 9 to automatically return and axially lock the square tongue supporting plate 41 from moving forward and backward along the axial direction. The pivoting arm 8 is pivoted out of the way and its top end 81 again rests against the elevation 49.

Further, the first recess 43 includes two first sub-recesses (43 a, 43 b) arranged in the front-rear direction, the two first sub-recesses (43 a, 43 b) being separated by one protruding tooth 44, the one protruding tooth 44 being provided on the tongue supporting plate 41. The auxiliary recess 406 is separated from the first front sub-recess 43b by a further projecting tooth 402, which further projecting tooth 402 is provided on the slide 400. In this way, the first shifting arm 600 rotated for two weeks can be combined to the two first sub-recesses (43 a, 43 b) in sequence to shift the square bolt supporting plate 41 for performing two-stage axial movement, so that the axial extension length of the square bolt head 42 can be increased, and the anti-picking performance of the lock body is improved.

As shown in fig. 3, 5 and 10, intermediate recesses (90, 48) are provided in the detent plate 9 and the tongue support 41, respectively, and the second toggle device 7 is provided in the intermediate recesses (90, 48). The second shifting device 7 is arranged at a left-right interval with the first shifting device 6, the second shifting device 7 comprises a second shifting arm 71 capable of rotating forward and backward, the second shifting arm 71 can extend into the lock body 100 and drive the square tongue assembly 4 to lock and unlock in a shifting manner when the second shifting arm 71 rotates, and can be separated from the square tongue assembly 4 after the locking and unlocking are completed, and the second shifting arm 71 can also retract the oblique tongue assembly 3. The second recess 46 for screwing the second pulling arm 71 into and combining the second pulling arm 71 is provided on the square tongue supporting plate 41, and the positioning plate 9 further includes another side 95 extending to the second recess 46, and the orthographic projection of the other side 95 overlaps with the orthographic projection of the second recess 46 when seen in a front view. When the second pulling arm 71 is screwed into the second recess 46, the second pulling arm 71 can be combined to the other side edge 95 and push the clamping plate 9 to move, so that the axial locking device is disabled, the axial locking of the square tongue supporting plate 41 is released, and the square tongue supporting plate 41 can be further pulled to move forwards or backwards, and when the second pulling arm 71 leaves the second recess 46, the clamping plate return spring 52 can drive the clamping plate 9 to automatically reset and axially lock the square tongue supporting plate 41 so as not to move forwards or backwards along the axial direction.

As shown in fig. 10 and 13, the second striking device 7 further comprises a manual driving mechanism for driving the second striking arm 71 to rotate, the manual driving mechanism comprising a mechanical lock cylinder 23 (in industry definition, the lock cylinder is also referred to as a lock head) opened by a mechanical key and an in-door knob 73. The manual driving mechanism is a separate functional module that can be detached from the lock body 100, and in a specific application scenario, the manual driving mechanism needs to be combined to the lock body to enable the second shifting arm 71 to extend into the lock body 100. The in-door knob 73 is disposed in front of and behind the mechanical lock cylinder 23, and the second dial arm 71 is located between an output shaft 730 of the in-door knob 73 and an output shaft 720 of the mechanical lock cylinder 23. The second shifting arm 71 is connected to the output shaft 730 of the in-door knob 73 and can rotate along with the output shaft 730 of the in-door knob 73, and when the second shifting arm 71 rotates, the second shifting arm 71 can drive the square tongue assembly 4 to lock or unlock. The second dial arm 71 is provided with a dial arm connection hole 710 capable of receiving an output shaft 720 of the mechanical lock cylinder 23. The output shaft 720 of the mechanical lock cylinder 23 is inserted into the arm connecting hole 710 in a radial linkage relationship with the second arm 71 after the key is inserted, so that the second arm 71 is simultaneously 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. According to the above technical solution, the second shifting arm 71 is in a connection relationship with the output shaft 720 of the mechanical lock cylinder 23, so that the second shifting arm 71 can be simultaneously connected to the output shaft 720 of the mechanical lock cylinder 23 and the output shaft 730 of the in-door knob 73 under the condition of inserting a key, and the second shifting arm 71 and the in-door knob 73 can be driven to rotate by turning the key; otherwise, the second shifting arm 71 is in a separation relationship with the output shaft 720 of the mechanical lock cylinder 23, and when the in-door knob 73 is rotated, the second shifting arm 71 rotates along with the output shaft 730 of the in-door knob 73, and is not limited by the rotation of the mechanical lock cylinder 23. When the electric mechanism 2 fails or has insufficient power, the second shifting device 7 can be used as a standby device to replace the first shifting arm 600 to complete the locking and unlocking operation. Of course in other embodiments, if the in-door knob 73 is not provided, the second dial arm 71 may be coupled to the output shaft 720 of the mechanical lock cylinder 23 and may be rotatable 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 provided on the blade holder 41 and a slider return spring 53 capable of driving the intermediate slider 300 to automatically return. Second spring locator posts 414 and intermediate slider guide posts (415, 416) are provided on the lower side wall of the tongue blade 41 in spaced apart relation to one another. The intermediate slide 300 comprises a hook arm 301 for engaging the second pulling arm 71, an engaging projection 302 for engaging the slide return spring 53, and guide grooves (303, 304) provided to fit the intermediate slide guide posts (415, 416). The middle sliding piece 300 is sleeved on the middle sliding piece guide posts (415, 416) through the guide grooves (303, 304), one end of the sliding piece return spring 53 is connected to the combining convex post 302, and the other end is connected to the second spring positioning post 414. A lever member 200 and a rotating shaft 15 are also provided in the lock housing 1, and the lever member 200 is rotatably provided on the rotating shaft 15. The tail end 202 of the lever member 200 extends to the tongue supporting plate 31 and can be abutted against the tongue supporting plate 31, and the front end of the lever member 200 is provided with an upright portion 201 capable of engaging with the intermediate slider 300, the upright portion 201 avoiding the axial forward-backward movement path of the intermediate slider 300. When the side tongue supporting plate 41 is extended and moved forward with the middle sliding member 300 along the axial direction, the front end of the lever member 200 and the standing part 201 can avoid the side tongue supporting plate 41 and the middle sliding member 300, when the hook arm 301 of the middle sliding member 300 is positioned in the rotation range of the second pulling arm 71 and rotates the second pulling arm 71 after the side tongue supporting plate 41 is moved backward with the middle sliding member 300, the second pulling arm 71 pulls the hook arm 301 to pull and slide the middle sliding member 300, the sliding middle sliding member 300 can be combined with the standing part 201 and can drive the lever member 200 to rotate through the standing part 201, and the rotating lever member 200 can push the inclined tongue supporting plate 31 to move backward and retract the inclined tongue head 32 into the lock housing 1.

According to the above technical solution, as shown in fig. 2, the tongue head 42 is in an unlocked state. When the second pulling arm 71 is rotated clockwise to screw into the second recess 46, the second pulling 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, thereby releasing the axial locking of the square tongue supporting plate 41 and pulling the square tongue supporting plate 41 to move forward to push the square tongue head 42 to extend out of the lock housing 1, and at the same time, the square tongue supporting plate 41 moves forward with the intermediate sliding member 300. The latch plate return spring 52 can drive the latch plate 9 to automatically return to axially lock the tongue supporting plate 41 from moving axially back and forth when the second pulling arm 71 leaves the second recess 46.

As shown in FIG. 3, the tongue head 42 and the beveled tongue portion 32 are in a locked state. When the second pulling arm 71 rotates counterclockwise to screw into the second recess 46, the second pulling arm 71 is combined to 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 to leave the vertical surface 49, so that the axial locking of the square tongue supporting plate 41 is released, and the square tongue supporting plate 41 is pushed to move backwards to drag the square tongue head 42 to be retracted into the lock housing 1. At the same time, the square tongue supporting plate 41 moves backward with the middle sliding member 300, when the hook arm 301 of the middle sliding member 300 is located in the rotation range of the second pulling arm 71 and rotates the second pulling arm 71 after the middle sliding member 300 moves backward, the second pulling arm 71 pulls the hook arm 301 to enable the middle sliding member 300 to slide in a pulling way, the sliding middle sliding member 300 is combined with the standing part 201 and drives the lever member 200 to rotate through the standing part 201, and the rotating lever member 200 pushes the inclined tongue supporting plate 31 to move backward so as to retract the inclined tongue head 32 into the lock housing 1. When the second pulling arm 71 leaves the second recess 46 to pull the hook arm 301, the latch plate return spring 52 can drive the latch plate 9 to automatically return to axially lock the square tongue supporting plate 41 from moving forward and backward along the axial direction. When the second pulling arm 71 is rotated to leave the hook arm 301, the intermediate slider 300 is automatically reset under the drive of the slider return spring 53, and the latch supporting plate 31 is reset under the action of the latch return spring 5 to extend the latch tongue portion 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 one protruding tooth 45, the one protruding tooth 45 being provided on the tongue supporting plate 41. In this way, the second pulling arm 71 rotated for two weeks can be combined to the two second sub-recesses (46 a, 46 b) in sequence to pull the square bolt supporting plate 41 for secondary movement, so that the extension length of the square bolt head 42 can be increased, and the anti-picking performance of the lock body can be improved.

According to the above technical solution, the lock body 100 is provided with both the electric mechanism 2 and the manual driving mechanism, if the first pulling arm 600 stays in the first recess 43 after locking or unlocking is completed, it is basically difficult to reversely drive the first pulling arm 600 to automatically leave the first recess 43 through the movement of the tongue assembly 4, that is, the first pulling arm 600 will be blocked on the first recess 43 and further limit the tongue assembly 4 from moving, and at this time, the spare manual driving mechanism is started and rotated to drive the tongue assembly 4, so that unlocking is also difficult to be driven and realized. How to coordinate the electric driving part and the manual driving part, so that the locking and unlocking can be realized through the manual driving part at any time becomes the technical problem which needs to be further solved by the invention. For this purpose, the electric mechanism 2 drives the first shifting arm 600 to further drive the first shifting arm 600 to disengage from the tongue assembly 4 and allow the first shifting 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 shifting arm 600 stays at the safe position to allow the first shifting arm 600 to avoid the tongue assembly 4 at this time, and the manual driving mechanism is used for driving the tongue assembly 4 to move to lock or unlock by the second shifting arm 71 with the first shifting arm 600 staying at the safe position. Therefore, the electric mechanism 2 not only can drive the first shifting arm 600 to complete locking or unlocking, but also can further drive the first shifting arm 600 to be separated from the square tongue assembly 4 and stay in a safe position, so that preparation conditions are provided for the second shifting arm 71 to drive the square tongue assembly 4 to move at any time. The first shifting arm 600 in the safety position is not only completely separated from (not contacting with) the tongue assembly 4, but also leaves the moving path of the tongue assembly 4, at this time, the first shifting arm 600 does not become an obstacle for the movement of the tongue assembly 4, and the tongue assembly 4 can smoothly move to complete locking or unlocking under the driving of the second shifting arm 71.

As shown in fig. 2, 3 and 13, in order to accurately rest the first toggle arm 600 at a safety position, an inner circuit board 500 is further provided in the lock housing 1, the inner circuit board 500 being disposed vertically with the tongue supporting plate 31 and a part of the inner circuit board 500 being disposed vertically correspondingly with the transmission toothed disc 63. An internal controller 5010 and a motor main driver 509 connected to the internal controller 5010 by signals are provided on the internal circuit board 500, and the motor main driver 509 controls driving of the electric mechanism 2. Be provided with fluted disc response trigger body 61 on the transmission fluted disc 63, with transmission fluted disc 63 upper and lower correspondence arranges be provided with the response receiver on the inner circuit board 500, the response receiver includes along the fluted disc response trigger body 61's travel path arranges first main sensor 501 and second main sensor 502 around, first main sensor 501 and second main sensor 502 can receive respectively the response signal that fluted disc response trigger body 61 passed and send the inner controller 5010. The inner controller 5010 is configured to determine that the first toggle arm 600 is locked or unlocked 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 inner controller 5010, where the standard logic model includes receiving the signal fed back by the first main sensor 501 first and then receiving the signal fed back by the second main sensor 502, and then recognizing that the first dial 600 rotates clockwise once; the logic information of the first dial 600 rotating counterclockwise once is determined by receiving the feedback signal from the second main sensor 502 and then receiving the feedback signal from the first main sensor 501. According to the standard logic model, the inner controller 5010 determines the rotation direction of the first dial 600 and the number of passes in the same rotation direction according to the sequence of signals fed back by the first main sensor 501 and the second main sensor 502 obtained in practice. In this way, the inner controller 5010 can more precisely control the operation of the first toggle arm 600 by the electric mechanism 2 and can better control the time when the electric mechanism 2 stops operating so that the first toggle arm 600 stays in the safe position (the area between the first main sensor 501 and the second main sensor 502).

A third sensor 508 is further disposed on the inner circuit board 500, and the third sensor 508 is in signal connection with the inner controller 5010. A third signal post 203 is further disposed at the tail end 202 of the lever member 200, and the third signal post 203 is disposed vertically corresponding to the third sensor 508 when the intermediate slider 300 is in a reset state and does not drive the lever member 200 to rotate. When the second shifting arm 71 is rotated by the lever member 200 to push the latch supporting plate 31 to move backward to retract the latch head 32 into the lock housing 1, the third signal post 203 is separated from the third sensor 508, and at this time, the third sensor 508 sends a movement signal of the third signal post 203 to the internal controller 5010, and the internal controller 5010 records the number of movements of the second shifting arm 71, so that the user can know the usage of the manual driving mechanism.

However, it cannot be ignored that when the inner circuit board 500 fails and the electric mechanism 2 suddenly stops operating during operation, the first pulling arm 600 is stuck on the first recess 43, and the unlocking or locking cannot be realized by the manual driving mechanism. 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 external circuit board 800 is provided with an external controller 801 and a motor standby driver 802 in signal connection with the external controller 801, the motor standby driver 802 also controls and drives the electric mechanism 2, and the internal controller 5010 is in signal connection with the external controller 801; the outer lock panel 102 is provided with an outer lock button 105, and the outer lock button 105 is in signal connection with the outer controller 801. The outer locking button 105 is used for controlling and driving the electric mechanism 2 to act through the inner controller 5010 and the motor main driver 509 according to the starting instruction of the outer locking button 105 when the outer locking button 105 is started, or directly controlling and driving the electric mechanism 2 to act through the motor standby driver 802 when the inner circuit board 500 breaks down, so as to implement the forced locking outside the door.

Wherein the outer circuit board 800 and the inner circuit board 500 are mechanically and physically independent from each other, but signals acquired by them can be transferred through the inner controller 5010 and the outer controller 801. The external controller 801 may send an unlocking command or a locking command to the internal controller 5010, and after the internal controller 5010 receives the unlocking command or the locking command of the external controller 801, the external controller 801 may complete unlocking or locking by driving the tongue component 42 through the motor main driver 509 and the electric mechanism 2, and may feed back an unlocking completion signal or a locking completion signal to the external controller 801. Next, the external controller 801 and the motor backup driver 802 may independently drive the electric mechanism 2 to operate when the internal circuit board 500 fails, using the external circuit board 800 as a layout carrier.

The motor main driver 509 mainly controls and drives the electric mechanism 2 to normally operate under a normal operating condition, so as to realize normal unlocking and locking operations. The motor spare driver 802 mainly has abnormal operation, for example, if the motor main driver 509 or the internal controller 5010 fails to control the operation of the electric mechanism 2, the motor spare driver 802 can replace the motor main driver 509 to control and drive the electric mechanism 2.

According to the above technical solution, after the external locking button 105 is activated, the forced locking can be completed through two control loops:

first, the main control circuit, the outer lock button 105 is used for controlling and driving the electric mechanism 2 to act through the inner controller 5010 and the motor main driver 509 according to the starting instruction of the outer lock button 105 when the outer lock button 105 is started, so as to implement forced locking outside the door. This scheme belongs to a control loop that is preferably selected when the outer locking button 105 is activated, and is generally applied to a manual forced intervention scheme in which the inner controller 5010 and the motor main driver 509 are still in a normal operating state, so that in this control loop, the inner controller 5010 and the motor main driver 509 can still participate in the operation to control and drive the electric mechanism 2 to act to implement a forced locking outside the door, and the first toggle arm 600 can be separated from the tongue component 4 to stay in the safe position, and then unlocking can also be implemented by the manual driving mechanism.

Second, in the standby control loop, when the inner circuit board 500 fails, the outer controller 801 directly controls and drives the electric mechanism 2 to act through the motor standby driver 802, so as to implement forced locking outside the door. This solution belongs to a standby 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, the motor main driver 509 cannot control the operation of the electric mechanism 2, and therefore the motor spare driver 802 replaces the motor main driver 509 to control the operation of the electric mechanism 2. In practical applications, the damage of the inner circuit board 500 may cause the latch support plate 41 and the first shifting arm 600 to be still combined and in a clamping position, and the motor standby driver 802 is started to drive the electric mechanism 2 to act so as to drive the first shifting arm 600 to rotate in the locking direction, and the first shifting arm 600 can be driven to be separated from the latch support plate 41 and stay in a safe position, at the moment, the obstacle of the movement of the latch assembly 4 is cleared, the manual driving mechanism can be used for driving the second shifting arm 71 to drive the latch assembly 4 to move for unlocking, and of course, locking can also be realized, however, at the moment, the latch assembly 4 is in a locked state, and locking by the manual driving mechanism is not needed. The manual driving mechanism can be safely used for entering a room after unlocking, and the lockset is convenient to disassemble and maintain from the inside of the door, so that destructive door opening is not needed to be implemented outside the door. 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 solution is designed mainly around the problem. Of course, if the inner circuit board 500 is damaged, the tongue component 4 is not clamped with the first shifting arm 600, and the first shifting arm 600 is already in the safe position, and the manual driving mechanism is directly used to unlock and lock.

The outer locking button 105 and the motor spare driver 802 are not generally started at will in normal unlocking and locking use, but are a spare control loop capable of driving the electric mechanism 2 to act, and the outer locking button is completely possibly used by a bad person for unlocking; for this reason, whether the motor spare drive 802 or the motor main drive 509 is activated by the outer lock button 105, the latch assembly 4 can be locked without unlocking, and thus the unlocking effect of the outer lock button 105 on the motor spare drive 802 and the motor main drive 509 can be avoided.

According to the above technical solution, not only is the electric mechanism 2 opened in standby by the outer locking button 105 and the motor standby driver 802 realized, but the standby circuit cannot be a bad person to implement a path opposite to the dangerous behavior so as to strengthen the locking safety; the first shifting arm 600 can be separated from the square tongue assembly 4 by using the standby loop, so that convenience is provided for unlocking by adopting a standby manual driving mechanism, namely, the standby loop can only lock the lock instead of unlocking the lock, and unlocking obstacles are cleared for other mechanical standby unlocking means.

Further, the outer controller 801 is further configured to control the first dial arm 600 to rotate reversely through the motor main driver 509 and the electric mechanism 2 in response to a locked rotation signal of the electric mechanism 2, or directly control the electric mechanism 2 to rotate reversely through the motor standby driver 802 to drive the first dial arm 600 to rotate reversely to the safe position when the inner circuit board 500 fails. According to the above technical solution, when the electric mechanism 2 is locked, that is, cannot continue to rotate forward, the first shifting arm 600 can be driven to rotate reversely to return to the safe position without staying in place, so as to avoid the first shifting arm 600 from blocking the square tongue assembly 4.

Further, a spare sensor 803 is provided 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 shifting arm 600 has been separated from the tongue assembly 4 and is in a safety position, and transmitting the signal to the outer controller 801. The spare sensor 803 is disposed on the inner circuit board 500, but is not substantially in direct signal connection with the electrical components on the circuit board, and the signal received by the spare sensor 803 is transmitted to the outer controller 801. When the first and second main sensors 501 and 502 fail to transmit signals to the inner controller 5010, the inner controller 5010 will feed back an activation signal to the outer controller 801 to activate the standby sensor 803. Thereafter, the standby sensor 803 senses that the first dial arm 600 is separated from the signal of the square tongue assembly 4 in the safety position and transmits the 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 motor main driver 509 or the motor standby driver 802, so as to prevent the first dial arm 600 from being blocked on the square tongue assembly 4 again after continuing to rotate the head (reaching 360 °) after being separated. The backup sensor 803 may be an infrared sensor, a hall effect sensor, or the like.

Further, a position display is also included in signal connection with the outer controller 801, the position display being configured to display a signal that the first dial arm 600 has been disengaged from the tongue assembly 4 in a safe position. Wherein the position display may optionally be provided on the outer lock panel 102 or the inner lock panel 101. The position display may be an indicator light, an LED display screen, or the like, capable of feeding back an indication signal to a user. Accordingly, the position signal that the first dial arm 600 has been disengaged from the tongue assembly 4, as represented by the position display, may be embodied as an optical signal, a pattern symbol signal, or the like. By sensing the indication signal, the user can clearly know whether the first arm 600 has been separated from the tongue assembly 4, without blindly manipulating the first arm 600 or the second arm 71 to act, so as to provide clear guidance for the next effective operation.

In addition, in order to prevent the first pulling arm from being jammed in the first recess 43 to affect the locking and unlocking operation of the second pulling arm 71, the following two schemes may be adopted:

first, by changing the connection structure between the first shifting device and the first shifting arm, see the embodiment shown in fig. 12, the first shifting device 6a includes a first rotating shaft 62a and a transmission fluted disc 63a, and the transmission fluted disc 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 engagement or disengagement of the inner clutch block (701) and the outer clutch block (702), and a clutch pin return spring 704 penetrating the clutch pin 703. In this aspect, the first shifting arm 600a is not connected to the first rotating shaft 62a and the driving gear disc 63a but is connected to the outer clutch block 702. The first rotating shaft 62a is radially linked with the inner clutch block 701. The first shift arm 600a is thus coupled to the first rotary shaft 62a via the clutch 700. An electromagnet 705 is also provided below the clutch 700. In the power-off state of the electromagnet 705, the clutch pin 703 is inserted into the inner and outer clutch blocks (701, 702) from bottom to top 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 forward and backward through the meshing transmission between the output gear 23 and the transmission fluted disc 63a, and the first rotating shaft 62a drives the first shifting arm 600a to rotate forward and backward through the inner and outer clutch blocks (701, 702) which are engaged together. When the first pulling arm 600a is jammed on the first recess 43, a power is supplied to the electromagnet 705, and the electromagnet 705 generates a magnetic field to magnetically attract the clutch pin 703 to move downward away from the inner clutch block 701 and fully retract onto the outer clutch block 702. When the clutch 700 is in the disengaged state, the transmission chain between the electric mechanism 2 and the first shifting arm 600a is disconnected, the power of the electric mechanism 2 cannot be transmitted to the first shifting arm 600a through the transmission fluted disc 63a and the first rotating shaft 62a, and meanwhile, the electric mechanism a loses the restriction on the rotation of the first shifting arm 600a, at this time, the second shifting arm 71 can drive the movement of the square tongue supporting plate 41, and the first shifting arm 600a is reversely driven to leave the first recess 43 in the moving process of the square tongue supporting plate 41.

Second, as shown in fig. 2 and 3, temporary manual knob coupling parts (621, 622) are respectively provided at the bottom ends of the transmission fluted disc 63 and the first rotating shaft 62, the temporary manual knob coupling parts (621, 622) can be coupled with a manual knob (not emitted in the drawing) to manually rotate the first toggle device, and control windows (16, 16 a) exposing the temporary manual knob coupling parts (621, 622) are respectively provided at the upper and lower cases of the lock case 1. Thus, when the inner circuit board 500 and the outer circuit board 800 are simultaneously failed or the first pulling arm 71 is blocked on the square tongue assembly 4 and cannot be removed due to the abnormal conditions such as failure of the electric mechanism 2, the driving force can be applied to the transmission fluted disc 63 or the first rotating shaft 62 through the control window (16 or 16 a) by the manual knob and combined to the temporary manual knob combining part (621 or 622) so as to control the first pulling arm 600 to rotate, thereby completing manual unlocking or completing unlocking through the second pulling arm 71 after the first pulling arm 600 rotates to leave the square tongue assembly 4. Of course, in other embodiments, the temporary manual knob coupling may be provided on only one of the driving toothed disc 63 or the first rotary shaft 62.

As shown in fig. 2 and 13, in order to automatically complete locking under the condition that the locking is confirmed, a first signal post 313 and a second signal post 314 for indicating the moving position of the tongue portion 32 are provided on the tongue supporting plate 41, and the first signal post 313 and the second signal post 314 are arranged at a left-right interval. During movement of the signal posts (313, 314), the signal posts (313, 314) respectively form a first position that characterizes extension of the tongue head 32 into position and a second position that characterizes retraction of the tongue head 32 into position. And further comprises a first tongue position sensor 505 arranged corresponding to the first position of the first signal post 313 and a second tongue position sensor 507 arranged corresponding to the second position of the second signal post 314, wherein the first tongue position sensor 505 and the second tongue position sensor 507 are respectively used for receiving the position signals passed by the signal posts (313 and 314) and respectively transmitting the signals corresponding to the position signals to the internal controller 5010. When the internal controller 5010 first receives a sequence of latch retraction signals transmitted in sequence by the first and second latch position sensors 505, 507 to indicate that the latch portion 32 is retracted from outside the lock housing 1 into the lock housing 1, and then receives a sequence of latch extension signals transmitted in sequence by the second and first latch position sensors 507, 505 to indicate that the latch portion 32 is extended from inside the lock housing 1 to outside the lock housing 1, then determines that the latch 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 disposed inside the front housing 11. Of course, in other embodiments, mounting holes may be provided in the front housing 11, and the door position sensor 504 may be mounted in the mounting holes. When the door is in the closed position, the door position sensor 504 will receive the trigger signal of the inductive trigger 900 on the door frame and send a door position signal to the internal controller 5010 indicating that the door has been closed in place. When the inner controller 5010 receives the door leaf position signal, receives the latch bolt retracting signal sequence and the latch bolt extending signal sequence in sequence, and detects and confirms that the locking condition is met by itself, the motor main driver 509 and the electric mechanism 2 automatically drive the latch bolt assembly 4 to complete locking, and then the inner controller 5010 feeds back the locking completion signal to the outer controller 801. Thus, the electric lock body 100 can be automatically locked in the door leaf closed state, so that potential safety hazards caused by forgetting to lock after a user enters a house or leaves the house are prevented. When the inner controller 5010 does not feed back a signal of completion of locking to the outer controller 801 within a specific time, it indicates that the inner circuit board 500 is faulty, and at this time, the outer controller 801 controls the motor standby driver 802 to start the electric mechanism 2 to implement locking. If the door leaf position sensor 504 fails to transmit a door leaf position signal to the inner controller 5010, a person standing outside the door can perform a strong lock outside the door through the outer lock button 105.

An alarm 503 is further provided on the electric lock body 100, and the alarm 503 is in signal connection with the internal controller 501. When the internal controller 501 receives the latch retract signal sequence but does not receive the latch extend signal sequence within a buffer time, for example, 3 seconds, it indicates that the latch assembly is false locked or that a latch position sensor (505 or 507) is malfunctioning, and an alarm prompt signal is sent out by the alarm 503 to remind the user. When the inner controller 5010 receives the latch retraction signal sequence and the latch extension signal sequence in sequence, but does not receive the signal indicating that the door leaf is closed sent by the door leaf position sensor 504 within the buffer time, this indicates that the door leaf is not closed in place, and sends an alarm prompt signal to remind the user through the alarm 503. In both of the above-described fault conditions, the internal controller 5010 does not actuate the electric mechanism 2 to lock, but can do so outside the door by manually actuating the structure and the external lock button 105. The alarm 503 is further configured to send an alarm prompt signal to remind a user to repair in time when the door leaf position sensor 504 or the motor main driver 509 fails.

As shown in fig. 13, an unlocking instruction pickup device 108 is further provided on the outer lock panel 102, and the unlocking instruction pickup device 108 may be a bio-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 external controller 801 sends an unlocking command to the internal controller 5010 on the basis of verifying that the unlocking command signal is correct. The inner controller 5010 automatically drives the square tongue assembly 4 to unlock through the motor main driver 509 and the electric mechanism 2, and feeds back the unlock completion signal to the outer controller 801. When the inner controller 5010 does not feed back a signal of unlocking completion to the outer controller 801 within a specific time, it indicates that the inner circuit board 500 has failed, and at this time, the outer controller 801 controls the motor standby driver 802 to start the electric mechanism 2 to unlock.

Unlocking and locking can also be realized in the door, as shown in fig. 13, an inner unlocking button 107 and an inner locking button 106 are arranged on the inner locking panel 101, the inner unlocking button 107 and the inner locking button 106 are respectively connected with the outer controller 801 in a signal manner, the inner locking button 106 is used for implementing forced locking in the door, and the inner unlocking button 107 is used for implementing unlocking in the door. According to the above technical solution, when the inner unlocking button 107 is activated, the outer controller 801 controls to drive the electric mechanism 2 to unlock through the inner controller 5010 and the motor main driver 509 according to the activation signal of the inner unlocking button 107, or directly controls to drive the electric mechanism 2 to unlock through the motor standby driver 802 when the inner circuit board 500 fails. When the inner unlocking button 107 is started, the outer controller 801 controls and drives the electric mechanism 2 to unlock through the inner controller 5010 and the motor main driver 509 according to a starting signal of the inner unlocking button 107, or directly controls and drives the electric mechanism 2 to unlock through the motor standby driver 802 when the inner circuit board 500 fails. That is, not only can the forced locking be realized, but also the forced unlocking can be realized in the door.

Claims

1. The electric lock body with the improved structure comprises a lock shell, an electric mechanism accommodated in the lock shell, an axially moving inclined tongue component, an axially moving square tongue component and an inclined tongue reset spring capable of driving the inclined tongue component to automatically extend along the axial direction; the inclined tongue component and the square tongue component are arranged left and right, the inclined tongue component comprises an inclined tongue supporting plate and an inclined tongue part which is arranged at the front end of the inclined tongue supporting plate and is provided with an inclined plane, and the square tongue component comprises a square tongue supporting plate and a square tongue head part which is arranged at the front end of the square tongue supporting plate; the lock housing comprises a front housing, wherein a bevel tongue opening part capable of enabling the bevel tongue head to extend along the axial direction and a square tongue opening part capable of enabling the square tongue part to extend along the axial direction are arranged on the front housing; it is characterized in that the method comprises the steps of,

the sliding part is arranged in the lock shell, and can drive the sliding part to automatically reset forwards along the axial direction, the sliding part can slide forwards and backwards along the axial direction, when the square tongue supporting plate moves backwards, the square tongue supporting plate can move backwards along with the sliding part, and an auxiliary recess which can enable the first shifting arm to be screwed in and is used for combining with the first shifting arm is arranged on the sliding part, and the auxiliary recess is positioned in front of the first recess; the sliding part is characterized in that a sliding part poking arm for poking the inclined tongue supporting plate is further arranged on the sliding part, a poking combination part for combining the sliding part poking arm is arranged on the inclined tongue supporting plate, and a front avoidance space for avoiding the sliding part poking arm to move forwards and backwards along the axial direction is reserved in front of the poking combination part.

2. The electric lock according to claim 1, further comprising a first shifting device rotatably arranged, wherein the first shifting device comprises a transmission fluted disc capable of rotating, the first shifting arm is arranged on the first shifting device and can synchronously rotate with the transmission fluted disc, an output gear capable of being meshed with the transmission fluted disc for transmission is arranged on an output shaft of the electric mechanism, and the electric mechanism drives the first shifting arm to rotate forward and backward through meshing transmission between the output gear and the transmission fluted disc.

3. The electric lock according to claim 2, wherein the first shifting device further comprises a first rotating shaft, the first shifting device is rotatably arranged in the lock housing through the first rotating shaft, the transmission fluted disc is arranged at the top end of the first rotating shaft, and the first shifting arm is connected to the first rotating shaft or/and the transmission fluted disc.

4. An electric lock according to claim 3, wherein the tongue supporting plate is provided with a first long hole adapted to the first rotation shaft, the first long hole being arranged in the front-rear direction so as to be able to guide the tongue supporting plate to move forward and backward in the axial direction by means of the first rotation shaft.

5. The electric lock according to claim 4, further comprising a second positioning shaft provided in the lock housing, wherein the tongue supporting plate is provided with a second long hole adapted to the second positioning shaft, and the second long hole is arranged in a front-rear direction so as to be capable of guiding the tongue supporting plate to move forward and backward in an axial direction by means of the second positioning shaft.

6. An electric lock according to claim 3, wherein a temporary manual knob coupling portion is further provided on the bottom end of the transmission fluted disc or/and the first rotation shaft, the temporary manual knob coupling portion being capable of being coupled with a manual knob to manually twist the first striking device, and a manipulation window exposing the temporary manual knob coupling portion is provided on the lock housing.

7. The electric lock of claim 2, further comprising a clutch disposed in the lock housing, wherein the first toggle device further comprises a first shaft, wherein the driving gear disc is disposed at a top end of the first shaft, and wherein the first toggle arm is in clutch connection with the first shaft through the clutch.

8. The electric lock of claim 1, wherein the slide member and slide member return spring are disposed on and below the tongue support plate, and wherein the slide member is slidably disposed on the tongue support plate so as to be movable back and forth in the axial direction with the slide member as the tongue support plate moves back and forth in the axial direction.

9. The electric lock according to claim 1, wherein the first recess includes two first sub-recesses arranged in a front-rear direction, the two first sub-recesses being separated by one protruding tooth provided on the tongue supporting plate; the two first sub-recesses are located behind the auxiliary recess and the front first sub-recess is separated from the auxiliary recess by a further protruding tooth, which is arranged on the slide.

10. The electric lock according to claim 1, wherein the tongue supporting plate is arranged to be wide in a left-right direction, and two tongue heads having different widths in the left-right direction are arranged on the tongue supporting plate.

11. The electric lock according to any one of claims 2 to 7, further comprising a detent plate disposed in the lock housing and a detent plate return spring capable of driving the detent plate to automatically return, wherein an axial locking device is disposed between the detent plate and the tongue supporting plate, the detent plate is engaged with the axial locking device to axially lock the tongue supporting plate, when the detent plate is moved away, the axial locking device fails to allow the tongue supporting plate to move back and forth in the axial direction, and when the detent plate is reset, the axial locking device can axially lock the tongue supporting plate to prevent the tongue supporting plate from moving back and forth in the axial direction; the clamping plate comprises a side edge extending to the first recess, and the orthographic projection of the side edge is overlapped with the orthographic projection of the first recess when seen in the front view direction; when the first shifting arm is screwed into the first recess, the first shifting arm can be combined to one side edge and push the clamping plate to move so that the axial locking device fails to release the axial locking of the square tongue supporting plate, and when the first shifting arm leaves the first recess, the clamping plate reset spring can drive the clamping plate to automatically reset to axially lock the square tongue supporting plate so that the square tongue supporting plate cannot move forwards and backwards along the axial direction.

12. The electric lock according to claim 11, further comprising a second toggle device mounted on the electric lock, the second toggle device being spaced apart from the first toggle device, the second toggle device comprising a second toggle arm capable of rotating in a forward and reverse direction; the square tongue supporting plate is provided with a second recess which can enable the second shifting arm to be screwed in and be used for being combined with the second shifting arm, the clamping plate further comprises another side edge which extends to the second recess, and the orthographic projection of the other side edge is overlapped with the orthographic projection of the second recess when seen in the front view direction; when the second shifting arm is screwed into the second recess, the second shifting arm can be combined to the other side edge and push the clamping plate to move so that the axial locking device fails, the axial locking of the square tongue supporting plate is released, the square tongue supporting plate can be further shifted forward or backward, and when the second shifting arm leaves the second recess, the clamping plate reset spring can drive the clamping plate to automatically reset to axially lock the square tongue supporting plate so that the square tongue supporting plate cannot move forward or backward along the axial direction;

13. The electric lock of claim 12, wherein the second recess includes two second sub-recesses arranged in a front-rear direction, the two second sub-recesses being separated by one protruding tooth, the one protruding tooth being provided on the tongue supporting plate.

14. The electric lock of claim 12, wherein the second toggle means comprises a mechanical lock cylinder that is unlocked by a mechanical key, and the second toggle arm is coupled to and rotatable with an output shaft of the mechanical lock cylinder.

15. The electric lock according to claim 12, wherein the second striking device comprises an in-door knob and a mechanical lock cylinder opened by a mechanical key, the in-door knob and the mechanical lock cylinder are arranged in front of each other, the second striking arm is located between an output shaft of the in-door knob and an output shaft of the mechanical lock cylinder, and the second striking arm can extend into the lock body and can drive the tongue component to lock or unlock when the second striking arm rotates; the second shifting arm is connected to the output shaft of the in-door knob and can rotate along with the output shaft of the in-door knob, and can be simultaneously connected to the output shaft of the mechanical lock cylinder and can rotate along with the output shaft of the mechanical lock cylinder after the key is inserted.

16. The electric lock of claim 12, wherein the detent plate and the tongue supporting plate are arranged up and down, and intermediate spaces are respectively provided on the detent plate and the tongue supporting plate, and the second toggle device is arranged in the intermediate spaces.

17. The electric lock according to claim 11, wherein the detent plate is arranged up and down with the tongue supporting plate, the axial locking device includes a protrusion provided on the tongue supporting plate or the detent plate toward the other, and further includes third recesses provided on the tongue supporting plate or the detent plate, which are adapted to the protrusion, the number of the third recesses being greater than the number of the first recesses and a stride length of the third recesses in the front-rear direction being substantially the same as a stride length of the first recesses.

18. The electric lock according to claim 11, wherein a vertical face facing backward is further provided on the square bolt assembly, a rotating arm and a rotating arm return spring capable of pushing the rotating arm to rotate out for return are further rotatably provided in the lock housing, and when the rotating arm rotates out for return, the top end of the rotating arm can be propped against the vertical face so as to cooperate with the axial locking device to improve the axial moment of the square bolt assembly pressed back axially; the clamping plate is also provided with a pushing arm capable of pushing the top end of the rotating arm to leave the vertical face, and a joint point between the pushing arm and the rotating arm is positioned between the rotating shaft of the rotating arm and the top end of the rotating arm; when the clamping plate is pushed to move so that the axial locking device is disabled to release the axial locking of the square tongue supporting plate, the clamping plate synchronously pushes the top end of the rotating arm to leave the vertical face through the pushing arm so as to be convenient for retracting the square tongue assembly.