Lock body transmission structure and electronic lock device having the same

Abstract

The application discloses a lock body transmission structure and an electronic lock device with the same. The lock body transmission structure comprises a lock bolt assembly, and first and second transmission plates are arranged on the two sides of the lock bolt assembly respectively. The first transmission plate is used for being in transmission connection with a driving motor, the driving motor can drive the lock bolt assembly to switch between an extended locking state and a retracted unlocking state. An electromechanical separation piece is arranged between the first transmission plate and the lock bolt assembly. The two ends of the second transmission plate in the height direction are respectively provided with a dial wheel transmission assembly and a second transmission gear. The dial wheel transmission assembly can trigger the electromechanical separation piece when the lock bolt assembly is in the extended locking state in response to external rotating operation, so that the transmission connection between the lock bolt assembly and the first transmission plate is disconnected. In addition, the dial wheel transmission assembly can also drive the lock bolt assembly to translate in response to external rotating operation, that is, the unlocking and locking functions of a key are completed, which is convenient to use and solves the technical problem that the existing electronic lock can only be broken to be used inconveniently when the lock bolt is stuck.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic lock, in particular to a lock body transmission structure and an electronic lock device with the same. BACKGROUND

[0002] With the increasingly mature electronic lock technology, its application is more and more widely.

[0003] In related solutions, the driving motor of the electronic lock can be connected with the lock tongue through a mechanical transmission structure, so that the driving motor can drive the lock tongue to extend and retract relative to the door leaf through the mechanical transmission structure to complete locking and unlocking respectively.

[0004] However, due to the circuit failure of the driving motor or the jamming of the mechanical transmission structure, the lock tongue of the current electronic lock often appears to be jammed. When the lock tongue is jammed, the electronic lock does not have the function of unlocking with a key, so at this time only the door can be broken, which causes inconvenience in use. SUMMARY

[0005] In order to solve at least one of the above technical problems, the embodiments of the present application provide a lock body transmission structure and an electronic lock device with the same. The lock body transmission structure can realize the disconnection of mechanical transmission between the driving motor and the lock tongue under the operation of the key, that is, the electromechanical separation function, and at the same time the lock body transmission structure can drive the lock tongue to lock and unlock through the key, thereby solving the above technical problems.

[0006] In a first aspect, the embodiments of the present application provide a lock body transmission structure, comprising:

[0007] a lock tongue assembly and first and second transmission plates arranged on both sides along the thickness direction of the lock tongue assembly;

[0008] The electromechanical separation piece is arranged between the lock tongue assembly and the first transmission plate and is configured to:

[0009] drive connection between the lock tongue assembly and the first transmission plate when in the first position,

[0010] disconnect the drive connection between the lock tongue assembly and the first transmission plate when in the second position;

[0011] The first transmission plate is arranged to be in drive connection with the driving motor. When the electromechanical separation piece is in the first position, the driving motor drives the lock tongue assembly to translate along the length direction of the lock tongue assembly through the first transmission plate, so as to switch the lock tongue assembly between the extended locking state and the retracted unlocking state.

[0012] The second transmission plate is provided with a dial transmission assembly and a second transmission gear at two ends along the height direction of the second transmission plate, and the rotation shafts of the dial transmission assembly and the second transmission gear are arranged along the thickness direction of the lock tongue assembly.

[0013] The dial transmission assembly is configured to drive the second transmission plate to move along the length direction of the second transmission plate when the dial transmission assembly rotates around the rotation shaft thereof in response to an external rotation operation, and the dial transmission assembly is further configured to trigger the electromechanical separation piece to move from the first position to the second position when the dial transmission assembly rotates around the rotation shaft thereof when the lock tongue assembly is in the extended locking state.

[0014] The second transmission gear is configured to be in transmission connection with the second transmission plate and the lock tongue assembly at the same time.

[0015] So that the dial transmission assembly drives the lock tongue assembly in the transmission disconnection state with the first transmission plate to switch between the extended locking state and the retracted unlocking state under the action of the external rotation operation.

[0016] In an embodiment, preferably, along the thickness direction, the second transmission gear includes a dial rotating disc coplanar with the lock tongue assembly and a gear rotating disc coplanar with the second transmission plate, and the dial rotating disc and the gear rotating disc are fixedly connected in opposite rotation directions.

[0017] The gear rotating disc is in transmission connection with the second transmission plate, and the dial rotating disc is in transmission connection with the lock tongue assembly, so that the second transmission gear is configured to be in transmission connection with the second transmission plate and the lock tongue assembly at the same time.

[0018] In an embodiment, preferably, an end of the second transmission plate towards the gear rotating disc is provided with a second rack extending along the length direction of the second transmission plate, and a circumferential end of the gear rotating disc is at least partially provided with second engagement teeth in meshing connection with the second rack, so that the gear rotating disc is in transmission connection with the second transmission plate.

[0019] An end of the lock tongue assembly towards the dial rotating disc is recessed with a dialing groove extending from the end of the lock tongue assembly along the height direction of the lock tongue assembly, and a circumferential end of the dial rotating disc is radially extended with a first dialing rod for abutting a pair of groove side walls forming the dialing groove when the dial rotating disc rotates with the second transmission gear, so that the dial rotating disc is in transmission connection with the lock tongue assembly.

[0020] In an embodiment, preferably, the groove side walls include a first side wall away from a lock tongue part of the lock tongue assembly and a second side wall close to the lock tongue part.

[0021] The first side wall comprises a first abutting bevel at the opening of the dialing groove, and the second side wall comprises a second abutting bevel at the opening of the dialing groove, the first abutting bevel and the second abutting bevel are oppositely inclined relative to the vertical direction, so that the first abutting bevel is used for abutting with the dialing arm of the first dialing rod, and the second abutting bevel is used for abutting with the radial end of the first dialing rod.

[0022] In an embodiment, preferably, the lock body transmission structure further comprises a power-assisted torsional spring, the power-assisted torsional spring comprises a pair of torsional spring arms;

[0023] One of the torsional spring arms is limitingly installed on a mounting shell carrying the lock body transmission structure, and the other torsional spring arm is limitingly installed on the second transmission gear;

[0024] The power-assisted torsional spring is configured to provide power assistance to the rotation of the second transmission gear when driving the bolt assembly to extend, so that the end of the first dialing rod abuts against the second abutting bevel.

[0025] In an embodiment, preferably, the surface of the first transmission plate towards the bolt assembly is provided with a first sliding groove extending along the height direction thereof, the first sliding groove is used for carrying the electromechanical separation piece;

[0026] The surface of the bolt assembly towards the first transmission plate is provided with a second sliding groove extending along the length direction thereof, one end of the second sliding groove away from the bolt part of the bolt assembly is connected with a limiting groove, the limiting groove extends along the height direction of the bolt assembly, and the limiting groove extends from the second sliding groove towards the dialing wheel transmission assembly;

[0027] The surface of the electromechanical separation piece towards the bolt assembly is provided with a limiting flange, and one end of the electromechanical separation piece away from the dialing wheel transmission assembly is elastically abutted against the first transmission plate through a first elastic body, the first elastic body is arranged along the height direction of the first transmission plate;

[0028] So that when the limiting flange is located at the position of the limiting groove along the height direction of the first transmission plate, the limiting groove limits the limiting flange along the length direction of the first transmission plate to drive-connect the first transmission plate and the bolt assembly;

[0029] And when the limiting flange is located at the position of the second sliding groove along the height direction of the first transmission plate, the limiting groove disappears along the length direction of the first transmission plate to disconnect the drive connection between the first transmission plate and the bolt assembly.

[0030] In an embodiment, preferably, the surface of the first transmission plate towards the latch assembly is further provided with a guide boss for being inserted into the second sliding groove, so that when the limiting flange is located at the position of the second sliding groove along the height direction of the first transmission plate, the guide boss and the second sliding groove guide the relative translation of the first transmission plate and the latch assembly.

[0031] In an embodiment, preferably, the electromechanical separation piece comprises a trigger portion protruding relative to the first transmission plate and the latch assembly when being installed in the first sliding groove;

[0032] So that the dial transmission assembly triggers the electromechanical separation piece to move from the first position to the second position by abutting the trigger portion when rotating around the rotation axis thereof.

[0033] In an embodiment, preferably, the trigger portion comprises a third abutting slope;

[0034] The dial transmission assembly comprises an arc-shaped arm coplanarly arranged with the second transmission plate, the arc-shaped arm being configured to rotate around the rotation axis thereof in response to the external rotation operation;

[0035] Wherein, the surface of the arc-shaped arm towards the first transmission plate is provided with a first arc-shaped boss for abutting with the third abutting slope when the arc-shaped arm rotates, and for driving the electromechanical separation piece to slide along the limiting groove to trigger the electromechanical separation piece to move from the first position to the second position.

[0036] In an embodiment, preferably, the surface of the arc-shaped arm away from the first transmission plate is provided with a second arc-shaped boss for being inserted into an arc-shaped guide groove of a mounting shell carrying the lock body transmission structure.

[0037] In an embodiment, preferably, the second sliding groove and the limiting groove are throughly arranged along the thickness direction of the latch assembly.

[0038] In an embodiment, preferably, the lock body transmission structure further comprises:

[0039] A lock cylinder dial transmission connected with the dial transmission assembly, the rotation axis of the lock cylinder dial transmission being arranged along the thickness direction of the latch assembly;

[0040] Wherein, the circumferential end of the lock cylinder dial transmission is provided with a dial boss; the dial transmission assembly comprises an arc-shaped arm coplanarly arranged with the second transmission plate, the arc-shaped arm being sleeved on the circumferential end of the lock cylinder dial transmission; and the notch forming the arc-shaped arm avoids the dial boss;

[0041] So that when the external rotating operation is applied to the lock cylinder dial, the lock cylinder dial drives the arc-shaped arm to rotate by abutting the two ends of the arc-shaped arm with the dial boss respectively.

[0042] In an embodiment, preferably, the radially outer end surface of the arc-shaped arm is provided with a pair of second dial rods extending in the radially outward direction of the arc-shaped arm; and the second transmission plate is provided with a transmission flange at one end thereof facing the dial transmission assembly.

[0043] The transmission flange is configured to be located within the sector region formed by the pair of second dial rods at the position of the second transmission plate, so that the lock cylinder dial drives the second transmission plate to translate along the length direction thereof when driving the arc-shaped arm to rotate.

[0044] In an embodiment, preferably, the transmission flange is provided with a fourth abutting inclined surface at the side thereof away from the bolt part of the bolt assembly, the fourth abutting inclined surface being used for abutting with one of the pair of second dial rods away from the bolt part.

[0045] In an embodiment, preferably, when the bolt assembly is in the extended locking state, the lock cylinder dial is aligned with the limiting groove of the bolt assembly in the vertical direction.

[0046] In an embodiment, preferably, the first transmission plate is provided with a reset sliding groove on the surface thereof facing the bolt assembly, the reset sliding groove extending along the length direction of the first transmission plate; and the bolt assembly is provided with a reset protrusion on the surface thereof facing the first transmission plate.

[0047] The reset protrusion is used for inserting into the reset sliding groove, and the reset sliding groove is further provided with a second elastic body, one end of the second elastic body abutting with the reset protrusion, and the other end of the second elastic body abutting with the end of the reset sliding groove away from the bolt part of the bolt assembly, so that the second elastic body resets the relative translation between the bolt assembly and the first transmission plate.

[0048] In an embodiment, preferably, the second transmission gear includes at least a dial rotating disc coplanarly arranged with the bolt assembly.

[0049] The end portion of the bolt assembly facing the dial rotating disc is recessed with a dialing groove, the groove side wall forming the dialing groove includes a second side wall close to the bolt part of the bolt assembly, the second side wall is provided with a second abutting inclined surface at the opening of the dialing groove, the second abutting inclined surface being inclinedly arranged towards the bolt part.

[0050] The circumferential end portion of the dial rotating disc is radially outwardly extended with a first dial rod, the first dial rod being inserted into the dialing groove.

[0051] Further, a torsion spring is arranged between the second transmission gear and a mounting shell carrying the lock body transmission structure;

[0052] When the driving motor drives the lock bolt assembly to translate from the retracted unlocking state to the extended locking state, the torsion spring is configured to provide assistance to the rotation of the second transmission gear, so that the radial end of the first lever abuts against the second abutting slope.

[0053] In an embodiment, preferably, the first transmission plate is in transmission connection with the driving motor through a gear assembly;

[0054] The gear assembly comprises coaxially arranged first and third transmission gears; the first transmission gear is arranged in the same plane as the first transmission plate and is in transmission connection with the first transmission plate; the third transmission gear and the dial wheel are arranged on opposite sides of the first transmission gear, and the third transmission gear is in transmission connection with the driving motor;

[0055] The circumferential end of the first transmission gear is concave and has a transmission notch in the form of a sector; the surface of the third transmission gear facing the first transmission gear is provided with a transmission boss, which is configured to abut against a first radial wall and a second radial wall forming the transmission notch respectively when the third transmission gear rotates, so that the third transmission gear is in transmission connection with the first transmission gear; the first radial wall is away from the lock bolt part, and the second radial wall is close to the lock bolt part;

[0056] Further, the height of the transmission boss is greater than the thickness of the first transmission gear;

[0057] The surface of the second transmission gear facing the first transmission gear is provided with an unlocking boss, which is configured to have a projection area at least partially overlapping with a projection area of the transmission notch in the axial direction of the first transmission gear when the lock bolt assembly is in the extended locking state and the end of the first lever abuts against the second abutting slope, so that the unlocking boss is abutted by the transmission boss before the second radial wall.

[0058] In an embodiment, preferably, the gear assembly and the second transmission gear are respectively located vertically above the first transmission plate and the second transmission plate, and the dial wheel transmission assembly is located vertically below the second transmission plate; or,

[0059] The gear assembly and the second transmission gear are respectively located vertically below the first transmission plate and the second transmission plate, and the dial wheel transmission assembly is located vertically above the second transmission plate.

[0060] In an embodiment, preferably, a circumferential end of the third transmission gear is provided with third meshing teeth at least partially, the third meshing teeth are used for transmission connection with the driving motor;

[0061] The first transmission plate is provided with a first rack at an end thereof facing the gear assembly, the first rack extends along a length direction of the first transmission plate, and a circumferential end of the first transmission gear is provided with first meshing teeth at least partially, the first meshing teeth are in meshing connection with the first rack.

[0062] In a second aspect, the embodiments of the present application provide an electronic lock device, the electronic lock device comprises a mounting shell, the mounting shell is used for mounting on a door leaf;

[0063] The mounting shell is provided with at least a driving motor and a lock body transmission structure in transmission connection with the driving motor;

[0064] The lock body transmission structure comprises:

[0065] a latch assembly and first and second transmission plates arranged on two sides along a thickness direction of the latch assembly;

[0066] The latch assembly and the first transmission plate are provided with an electromechanical separation member, the electromechanical separation member is configured to:

[0067] drive connection between the latch assembly and the first transmission plate when in the first position,

[0068] disconnect the drive connection between the latch assembly and the first transmission plate when in the second position;

[0069] The first transmission plate is used for transmission connection with the driving motor, and when the electromechanical separation member is in the first position, the driving motor drives the latch assembly to translate along a length direction of the latch assembly through the first transmission plate, so as to switch the latch assembly between an extended locking state and a retracted unlocking state;

[0070] The second transmission plate is provided with a second transmission gear and a dial transmission assembly at two ends thereof along a height direction of the second transmission plate, and rotation shafts of the second transmission gear and the dial transmission assembly are arranged along a thickness direction of the latch assembly;

[0071] The dial transmission assembly is configured to: in response to an external rotation operation, the dial transmission assembly is used for driving the second transmission plate to translate along a length direction of the second transmission plate when rotating around the rotation shaft thereof; and when the latch assembly is in the extended locking state, the dial transmission assembly is also used for triggering the electromechanical separation member to move from the first position to the second position when rotating around the rotation shaft thereof;

[0072] The second transmission gear is configured to be in transmission connection with the second transmission plate and the bolt assembly at the same time;

[0073] So that under the action of the external rotation operation, the dial transmission assembly drives the bolt assembly in transmission disconnection with the first transmission plate to switch between the extended locking state and the retracted unlocking state.

[0074] The one or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0075] The lock body transmission structure provided in the embodiments of the present application includes a bolt assembly, and the two sides of the bolt assembly in the thickness direction are respectively provided with a first transmission plate and a second transmission plate;

[0076] The first transmission plate is configured to be in transmission connection with a driving motor, and the driving motor can drive the bolt assembly to switch between the extended locking state and the retracted unlocking state through the first transmission plate; and an electromechanical separation piece is arranged between the first transmission plate and the bolt assembly.

[0077] The two ends of the second transmission plate in the height direction are respectively provided with a dial transmission assembly and a second transmission gear, the dial transmission assembly can trigger the electromechanical separation piece when the bolt assembly is in the extended locking state in response to an external rotation operation (i.e., a rotation operation of a key driving lock cylinder dial), so as to disconnect the transmission connection between the bolt assembly and the first transmission plate, that is, to achieve electromechanical separation; and the dial transmission assembly can also drive the second transmission plate to move horizontally in response to the external rotation operation, and at this time, considering that the second transmission gear is in transmission connection with the bolt assembly and the second transmission plate at the same time, that is, the dial transmission assembly can also drive the bolt assembly to switch between the extended locking state and the retracted unlocking state in response to the external rotation operation, that is, to complete the unlocking and locking functions of the key.

[0078] That is to say, the bolt assembly of the present embodiment can be in transmission connection with the driving motor and the lock cylinder dial through the two transmission plates on the two sides, and the lock cylinder dial can also release the transmission connection between the driving motor and the bolt assembly through the electromechanical separation piece; in this way, when the driving motor has a circuit fault or the mechanical transmission structure between the driving motor and the bolt assembly is stuck, the bolt assembly can be unlocked and locked by driving the lock cylinder dial with the key; thereby solving the technical problem of the existing electronic lock that cannot be conveniently used when the bolt is stuck due to the lack of electromechanical separation function and key unlocking function. BRIEF DESCRIPTION OF DRAWINGS

[0079] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments of the present application will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0080] Figure 1 It is an exploded structural schematic diagram of the lock body transmission structure.

[0081] Figure 2 It is another angle of the exploded structural schematic diagram of the lock body transmission structure.

[0082] Figure 3 It is a structural schematic diagram of the lock body transmission structure after being assembled from the first transmission plate direction.

[0083] Figure 4 It is a structural schematic diagram of the lock body transmission structure. Figure 3 It is a structural schematic diagram of the lock body transmission structure after removing the third transmission gear and the first transmission gear.

[0084] Figure 5 It is a structural schematic diagram of the lock body transmission structure. Figure 4 It is a structural schematic diagram of the lock body transmission structure.

[0085] Figure 6 It is a structural schematic diagram of the second transmission gear.

[0086] Figure 7 It is a structural schematic diagram of the second transmission gear.

[0087] Figure 8 It is a structural schematic diagram of the dial wheel transmission assembly driving the second transmission plate through the second dial rod.

[0088] Figure 9 It is a structural schematic diagram of the lock body transmission structure. Figure 8 It is a structural schematic diagram of the lock body transmission structure.

[0089] Figure 10 It is a structural schematic diagram of the electromechanical separation piece in the second position.

[0090] Figure 11 It is a structural schematic diagram of the driving motor driving the lock tongue assembly in the extended locking state.

[0091] Figure 12 It is a structural schematic diagram of the driving motor driving the lock tongue assembly in the retracted unlocking state.

[0092] Figure 13 It is a structural schematic diagram of the third transmission gear and the first transmission gear in transmission connection when the electromechanical separation piece is in the first position.

[0093] Figure 14Structure diagram of the radial end of the first lever abutting against the second abutting slope.

[0094] Figure 15 Schematic diagram of the relative position relationship between the second radial wall of the first transmission gear and the unlocking boss of the second transmission gear before the driving motor drives the lock bolt assembly to unlock.

[0095] Figure 16 Structure diagram of the driving motor driving the lock bolt assembly to be in the retracted unlocking state.

[0096] Wherein, the reference signs are:

[0097] 1- mounting housing, 2- arc-shaped guide groove, 3- driving motor,

[0098] 10- first transmission plate, 11- first sliding groove, 12- guide boss, 13- reset sliding groove, 14- first rack,

[0099] 20- second transmission plate, 21- second rack, 22- transmission flange, 23- fourth abutting slope,

[0100] 30- lock bolt assembly, 31- lock bolt part, 32- lever recess, 33- second sliding groove, 34- limiting groove, 35- reset block,

[0101] 361- first abutting slope,

[0102] 371- second abutting slope,

[0103] 40- electromechanical separation piece, 41- limiting flange, 42- trigger part,

[0104] 421- third abutting slope,

[0105] 50- lever transmission assembly, 51- first arc-shaped boss, 52- second arc-shaped boss, 53- arc-shaped arm, 54- second lever,

[0106] 60- second transmission gear, 61- lever rotating disc, 62- gear rotating disc, 63- first lever, 64- second meshing tooth, 65- unlocking boss,

[0107] 70- lock cylinder lever, 71- lever boss,

[0108] 80- first transmission gear, 81- first radial wall, 82- second radial wall, 83- transmission gap, 84- first meshing tooth,

[0109] 90- third transmission gear, 91- transmission boss, 92- third meshing tooth,

[0110] 101- first elastic body, 102- second elastic body, 103- power torsion spring. Detailed Implementation

[0111] To better understand the above technical solutions, exemplary embodiments of this application will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments of this application. It should be understood that this application is not limited to the exemplary embodiments described herein.

[0112] Figure 1 This is an exploded structural diagram of the lock body transmission structure. Figure 2 This is an exploded view of the lock body transmission structure from another angle. Please refer to... Figure 1 and Figure 2 A lock body transmission structure includes a lock tongue assembly 30 and a first transmission plate 10 and a second transmission plate 20 disposed on both sides along its thickness direction.

[0113] Among them, an electromechanical separation component 40 is provided between the latch assembly 30 and the first transmission plate 10. The electromechanical separation component 40 is configured to: connect the latch assembly 30 and the first transmission plate 10 in a first position, and disconnect the connection between the latch assembly 30 and the first transmission plate 10 in a second position; and the first transmission plate 10 is used to connect the first transmission plate 10 to the drive motor 3. When the electromechanical separation component 40 is in the first position, the drive motor 3 drives the latch assembly 30 to move along its length direction through the first transmission plate 10, so that the latch assembly 30 switches between an extended locking state and a retracted unlocking state.

[0114] The second transmission plate 20 is provided with a dial drive assembly 50 and a second transmission gear 60 at both ends along its height direction. The rotation shafts of the dial drive assembly 50 and the second transmission gear 60 are arranged along the thickness direction of the latch assembly 30. The dial drive assembly 50 is configured to drive the second transmission plate 20 to translate along its length direction when rotating around its rotation shaft in response to an external rotation operation. Furthermore, when the latch assembly 30 is in the extended locked state, the dial drive assembly 50 is also used to trigger the electromechanical separation member 40 to move from the first position to the second position when rotating around its rotation shaft. The second transmission gear 60 is configured to be connected to both the second transmission plate 20 and the latch assembly 30 in a transmission connection. This allows the dial drive assembly 50 to drive the latch assembly 30, which is in a disconnected state from the first transmission plate 10, to switch between the extended locked state and the retracted unlocked state under the action of an external rotation operation.

[0115] Overall, in one aspect, the lock tongue assembly of the present embodiment is in driving connection with the driving motor through the first transmission plate, so that the driving motor can drive the lock tongue assembly to extend and retract relative to the door leaf, realizing the unlocking function through, for example, password, fingerprint, face recognition, etc., and the door locking function; on the other hand, the lock tongue assembly is also in driving connection with, for example, the lock cylinder dial through the second transmission plate, so that the lock cylinder dial (under the operation of the key rotation) can drive the lock tongue assembly to extend and retract relative to the door leaf, that is, to realize unlocking and locking. At the same time, it should be noted that when the lock cylinder dial drives the lock tongue assembly to unlock by rotation, it will simultaneously disconnect the driving connection between the lock tongue assembly and the first transmission plate, realizing mechanical and electrical separation, and preventing the driving motor from hindering the rotation operation of the key.

[0116] Specifically, the lock tongue assembly is, for example, a flat plate arranged in the vertical direction, and the end of the lock tongue assembly along its length direction forms a lock tongue part 31, which is, for example, a square tongue; the lock tongue assembly is provided with a first transmission plate and a second transmission plate on both sides along its thickness direction, and the first transmission plate, the lock tongue assembly and the second transmission plate are arranged in parallel along the vertical direction.

[0117] On one side of the lock tongue assembly, the present embodiment is provided with an electromechanical separation piece between the first transmission plate and the lock tongue assembly, which can be respectively in a first position and a second position between the first transmission plate and the lock tongue assembly:

[0118] When the electromechanical separation piece is in the first position, it can, for example, limit and lock the lock tongue assembly and the first transmission plate along the length direction, that is, drive connect the lock tongue assembly and the first transmission plate; when the electromechanical separation piece is in the second position, it can unlock the limit and lock between the lock tongue assembly and the first transmission plate, that is, disconnect the driving connection between the lock tongue assembly and the first transmission plate.

[0119] And the first transmission plate is used to drive connect with the driving motor.

[0120] Therefore, it can be understood that when the electromechanical separation piece is in the above-mentioned first position, that is, the lock tongue assembly and the first transmission plate are in driving connection, the driving motor can drive the lock tongue assembly to translate along its length direction through the first transmission plate, or in other words, drive the lock tongue assembly to switch between the extended locking state and the retracted unlocking state, realizing the functions of electric unlocking and locking, etc.

[0121] Of course, it can also be understood that when the electromechanical separation piece is in the above-mentioned second position, that is, the driving connection between the lock tongue assembly and the first transmission plate is disconnected, the driving motor cannot drive the lock tongue assembly to translate through the first transmission plate at this time.

[0122] On the other side of the latch assembly, the embodiment is provided with a dial wheel transmission assembly and a second transmission gear at both ends of the second transmission plate in the height direction, respectively, and the rotation shafts of the dial wheel transmission assembly and the second transmission gear are arranged along the thickness direction of the latch assembly. That is, the dial wheel transmission assembly and the second transmission gear can rotate in the plane parallel to the latch assembly (of course, also parallel to the second transmission plate).

[0123] Among them, one end of the second transmission plate along its height direction, the second transmission gear is simultaneously in transmission connection with the second transmission plate and the latch assembly, so it can be understood that, for example, when the second transmission plate moves horizontally along its length direction, it can drive the latch assembly to move horizontally.

[0124] Among them, the other end of the second transmission plate along its height direction, the dial wheel transmission assembly is used to drive the second transmission plate to move horizontally along its length direction when it rotates around its rotation shaft in response to external rotation operation. At this time, combined with the above-mentioned second transmission gear which is simultaneously in transmission connection with the second transmission plate and the latch assembly, that is, the dial wheel transmission assembly can drive the latch assembly to move horizontally along its length direction when it rotates around its rotation shaft in response to external rotation operation.

[0125] Therefore, it can be understood that the external rotation operation can be achieved by rotating the key driven lock cylinder dial, that is, the latch assembly of the embodiment can be controlled by the rotation of the key to achieve the locking and unlocking functions.

[0126] At the same time, combined with the above description, considering that the latch assembly is also in transmission connection with the drive motor on one side, and in order to disconnect the transmission connection between the latch assembly and the drive motor when using the key, the dial wheel transmission assembly of the embodiment can also trigger the above-mentioned electromechanical separation piece to move from the first position to the second position in response to external rotation operation, so as to achieve electromechanical separation.

[0127] It needs to be considered that the electronic lock is usually in the locked state when the key is needed, that is, the key is usually needed to switch the latch assembly from the extended locked state to the retracted unlocked state.

[0128] Based on the above consideration, the premise of the dial wheel transmission assembly of the embodiment triggering the electromechanical separation piece to move from the first position to the second position in response to external rotation operation should be that the latch assembly is in the extended locked state.

[0129] That is, when the latch assembly is in the extended locked state, under the action of external rotation operation, the dial wheel transmission assembly on the one hand triggers the electromechanical separation piece to move from the first position to the second position, achieving the disconnection of the transmission connection between the drive motor and the latch assembly; on the other hand, the dial wheel transmission assembly also drives the latch assembly to move horizontally through the second transmission plate, which should be specifically from the extended locked state to the retracted unlocked state, that is, to achieve the key unlocking.

[0130] The lock body transmission structure comprises a lock bolt assembly, and first and second transmission plates are respectively arranged on both sides of the lock bolt assembly in the thickness direction of the lock bolt assembly;

[0131] The first transmission plate is configured to be in transmission connection with a driving motor, and the driving motor is configured to drive the lock bolt assembly to switch between the extended locking state and the retracted unlocking state through the first transmission plate.

[0132] The second transmission plate is provided with a dial transmission assembly and a second transmission gear at both ends in the height direction, respectively. The dial transmission assembly is configured to trigger the electromechanical separation member when the lock bolt assembly is in the extended locking state in response to an external rotation operation (i.e., a rotation operation of a key driving lock cylinder dial), so as to disconnect the transmission connection between the lock bolt assembly and the first transmission plate, that is, the electromechanical separation. In addition, the dial transmission assembly is also configured to drive the second transmission plate to move horizontally in response to the external rotation operation. At this time, considering that the second transmission gear is in transmission connection with both the lock bolt assembly and the second transmission plate, that is, the dial transmission assembly is also configured to drive the lock bolt assembly to switch between the extended locking state and the retracted unlocking state in response to the external rotation operation, that is, to complete the unlocking and locking functions of the key.

[0133] That is to say, the lock bolt assembly of the present embodiment can be in transmission connection with the driving motor and the lock cylinder dial through the two transmission plates on both sides, respectively. In addition, the lock cylinder dial can also release the transmission connection between the driving motor and the lock bolt assembly through the electromechanical separation member. In this way, when the driving motor has a circuit fault or the mechanical transmission structure between the driving motor and the lock bolt assembly is stuck, the lock bolt assembly can be unlocked and locked by driving the lock cylinder dial with the key. Thus, the technical problem of the existing electronic lock that cannot be conveniently used when the lock bolt is stuck due to the lack of electromechanical separation function and key unlocking function is solved.

[0134] In addition, it can be understood that the lock bolt part of the lock bolt assembly is, for example, a square tongue or a bevel tongue.

[0135] The above arrangement of the present embodiment, for example, the parallel arrangement of the transmission plates on both sides of the lock bolt assembly, and the transmission connection of the second transmission gear with both the lock bolt assembly and the second transmission plate, can make the size of the lock body transmission structure in the thickness direction smaller, that is, reduce the thickness of the lock body transmission structure, and improve the installation adaptability.

[0136] Regarding the second transmission gear 60 mentioned above, in one possible implementation, referring to Figure 1 、 Figure 2 、 Figure 6 and Figure 7In the thickness direction, the second transmission gear 60 includes a dial plate 61 coplanar with the lock tongue assembly 30 and a gear plate 62 coplanar with the second transmission plate 20, and the dial plate 61 and the gear plate 62 are fixedly connected in the relative rotation direction; wherein the gear plate 62 is in transmission connection with the second transmission plate 20, and the dial plate 61 is in transmission connection with the lock tongue assembly 30, so that the second transmission gear 60 is configured to be in transmission connection with the second transmission plate 20 and the lock tongue assembly 30 at the same time.

[0137] In the embodiment, the second transmission gear can for example include two rotating plates arranged in parallel, i.e. a dial plate and a gear plate, and then the two rotating plates are arranged coplanar with the lock tongue assembly and the second transmission plate respectively and in transmission connection, so that the second transmission gear is in transmission connection with the second transmission plate and the lock tongue assembly at the same time.

[0138] Wherein, the dial plate and the gear plate should be fixedly connected in the relative rotation direction, for example, the two rotating plates can be integrally formed, so it can be understood that the translation of the second transmission plate can drive the gear plate and the dial plate to rotate at the same time, and the dial plate drives the lock tongue assembly to translate, so that the second transmission plate drives the lock tongue assembly to translate.

[0139] In a specific embodiment, the end of the second transmission plate 20 towards the gear plate 62 is provided with a second rack 21, the second rack 21 extends along the length direction of the second transmission plate 20, and the circumferential end of the gear plate 62 is at least partially provided with second meshing teeth 64, the second meshing teeth 64 are in meshing connection with the second rack 21, so that the gear plate 62 is in transmission connection with the second transmission plate 20; the end of the lock tongue assembly 30 towards the dial plate 61 is recessed with a dialing groove 32, the dialing groove 32 extends from the end of the lock tongue assembly 30 along the height direction of the lock tongue assembly 30, and the circumferential end of the dial plate 61 radially extends outwardly with a first dialing rod 63, the first dialing rod 63 is used to abut a pair of groove side walls forming the dialing groove 32 respectively when the second transmission gear 60 rotates, so that the dial plate 61 is in transmission connection with the lock tongue assembly 30.

[0140] The embodiment gives the specific transmission structure between the gear plate and the second transmission plate, and between the dial plate and the lock tongue assembly.

[0141] Wherein, the transmission connection between the gear plate and the second transmission plate can be achieved through a rack and meshing teeth, for example, a second rack can be specifically arranged at the end of the second transmission plate, and then a second meshing tooth is arranged at the circumferential end of the gear plate, so that the transmission connection between the gear plate and the second transmission plate is achieved through the meshing of the second rack and the second meshing tooth.

[0142] Of course, considering the stroke factor of transmission connection, the gear plate can be specifically provided with a second meshing tooth at part of the circumferential end thereof.

[0143] The driving connection between the dial wheel and the latch assembly can be achieved through the dial lever and the dial groove. For example, the dial groove can be formed in the form of an inner recess at the end of the latch assembly, and then a first dial lever extends outward in the radial direction at the circumferential end of the dial wheel. In this way, the first dial lever is inserted into the dial groove, and when the dial wheel (or the second driving gear) rotates, the first dial lever can drive the latch assembly to move horizontally by abutting the two groove side walls that form the dial groove, thereby achieving the driving connection between the dial wheel and the latch assembly.

[0144] In a specific embodiment, to facilitate the dialing of the dial groove 32 by the first dial lever 63, the groove side wall includes a first side wall away from the latch portion 31 of the latch assembly 30 and a second side wall close to the latch portion 31; wherein the first side wall includes a first abutting inclined surface 361 at the opening of the dial groove 32, and the second side wall includes a second abutting inclined surface 371 at the opening of the dial groove 32, and the first abutting inclined surface 361 and the second abutting inclined surface 371 are oppositely inclined with respect to the vertical direction, so that the first abutting inclined surface 361 is used for abutting with the dial lever arm of the first dial lever 63, and the second abutting inclined surface 371 is used for abutting with the radial end of the first dial lever 63.

[0145] That is, in the pair of groove side walls forming the dial groove, the first side wall away from the latch portion includes a first abutting inclined surface at the opening of the dial groove, and the first abutting inclined surface is inclined in a direction away from the latch portion, so that the dial lever arm of the first dial lever can abut the first abutting inclined surface in parallel, and it can be understood that the first dial lever can drive the latch assembly to retract by abutting the first abutting inclined surface, thereby preventing the latch assembly from being stuck.

[0146] The second side wall close to the latch portion includes a second abutting inclined surface at the opening of the dial groove, and the second abutting inclined surface is inclined in a direction towards the latch portion, so that the radial end of the first dial lever can abut the second abutting inclined surface, and it can be understood that when the first dial lever drives the latch assembly to fully extend, the first dial lever can also limit the retraction of the latch assembly by abutting the second abutting inclined surface, that is, the latch assembly is locked in the extended locking state.

[0147] In a specific embodiment, the lock body driving structure further includes a power-assisted torsional spring 103, and the power-assisted torsional spring 103 includes a pair of torsional spring arms; one of the torsional spring arms is limitingly installed on the mounting shell 1 that carries the lock body driving structure, and the other torsional spring arm is limitingly installed on the second driving gear 60; and the power-assisted torsional spring 103 is configured to provide power assistance to the rotation of the second driving gear 60 when driving the latch assembly 30 to extend, so that the end of the first dial lever 63 abuts the second abutting inclined surface 371.

[0148] That is, in combination with the above description, when the lock bolt assembly is locked by the key, the lock bolt assembly should be translated from the retracted unlocking state to the extended locking state under the pushing of the first push rod, and in the process of translation of the lock bolt assembly, the embodiment further provides a power-assisted torsional spring between the second transmission gear and the mounting shell, which can provide power assistance to the rotation of the second transmission gear in the above process; in this way, it can be understood that, on the one hand, the load when the key is locked can be reduced, and the user experience can be improved; on the other hand, when the lock bolt assembly is about to be fully extended, the power-assisted torsional spring can also assist the end of the first push rod to abut against the second abutment slope, so that the first push rod can exert limiting constraint on the retraction of the lock bolt assembly.

[0149] Regarding the above-mentioned electromechanical separation piece 40, in one possible implementation, in combination with Figure 2 , Figure 10 and Figure 13 , the surface of the first transmission plate 10 facing the lock bolt assembly 30 is provided with a first sliding groove 11 extending along the height direction thereof, and the first sliding groove 11 is used to carry the electromechanical separation piece 40; the surface of the lock bolt assembly 30 facing the first transmission plate 10 is provided with a second sliding groove 33 extending along the length direction thereof, and one end of the second sliding groove 33 away from the lock bolt portion 31 of the lock bolt assembly 30 is connected with a limiting groove 34, the limiting groove 34 extends along the height direction of the lock bolt assembly 30, and the limiting groove 34 extends from the second sliding groove 33 toward the push wheel transmission assembly 50; the surface of the electromechanical separation piece 40 facing the lock bolt assembly 30 is provided with a limiting flange 41, and one end of the electromechanical separation piece 40 away from the push wheel transmission assembly 50 is elastically abutted against the first transmission plate 10 through a first elastic body 101, and the first elastic body 101 is arranged along the height direction of the first transmission plate 10;

[0150] so that when the limiting flange 41 is located at the position of the limiting groove 34 along the height direction of the first transmission plate 10, along the length direction of the first transmission plate 10, the limiting groove 34 limits the limiting flange 41 to drive-connect the first transmission plate 10 and the lock bolt assembly 30;

[0151] and when the limiting flange 41 is located at the position of the second sliding groove 33 along the height direction of the first transmission plate 10, along the length direction of the first transmission plate 10, the limiting of the limiting flange 41 by the limiting groove 34 disappears to disconnect the drive connection between the first transmission plate 10 and the lock bolt assembly 30.

[0152] As described above, the electromechanical separation piece is arranged between the first transmission plate and the lock bolt assembly.

[0153] Wherein, for the first transmission plate, a surface of the first transmission plate facing the latch assembly is provided with a first sliding groove, the first sliding groove is used for bearing the electromechanical separation piece, and the first sliding groove extends along a height direction of the first transmission plate; that is, the electromechanical separation piece can be installed in the first sliding groove of the first transmission plate, and in the first sliding groove, the electromechanical separation piece can slide along the height direction of the first transmission plate.

[0154] Then, for the latch assembly, a surface of the latch assembly facing the first transmission plate is provided with a second sliding groove and a limiting groove at the same time, and the second sliding groove and the limiting groove can be provided through along a thickness direction of the latch assembly, of course, the second sliding groove and the limiting groove can not be provided through, and the embodiment does not limit this. Figure 2

[0155] Wherein, as to the second sliding groove and the limiting groove, the second sliding groove extends along a length direction of the latch assembly, and the limiting groove extends along a height direction of the latch assembly; one end of the second sliding groove away from a latch part of the latch assembly is connected with the limiting groove, and the limiting groove extends from the second sliding groove to the dial transmission assembly; in this way, it can be seen that a connecting position of the second sliding groove and the limiting groove can form a limiting bend facing the dial transmission assembly.

[0156] Next, for the electromechanical separation piece, a surface of the electromechanical separation piece facing the latch assembly is provided with a limiting flange, and one end of the electromechanical separation piece away from the dial transmission assembly is also elastically abutted to the first transmission plate through a first elastic body (for example, the first elastic body is a spring).

[0157] Through the above setting, it can be understood that along the height direction, when the limiting flange of the electromechanical separation piece is located at the position of the limiting groove, the translation of the first transmission plate can be transmitted to the latch assembly through the mutual abutment of the limiting bend and the limiting flange, that is, the transmission connection between the first transmission plate and the latch assembly is realized, and at this time, it corresponds to that the electromechanical separation piece is in the first position.

[0158] It can also be understood that along the height direction, when the limiting flange of the electromechanical separation piece is located at the position of the second sliding groove, because the mutual abutment between the limiting bend and the limiting flange disappears, the translation of the first transmission plate cannot be transmitted to the latch assembly, that is, the transmission connection between the first transmission plate and the latch assembly is disconnected, and at this time, it corresponds to that the electromechanical separation piece is in the second position.

[0159] ​In other words, it can be understood that when the first sliding groove of the first transmission plate is aligned with the limiting groove of the bolt assembly, the transmission connection between the first transmission plate and the bolt assembly can be disconnected by applying a pressing force to the electromechanical separation piece to push the limiting flange away from the limiting bent portion, at which time the bolt assembly can slide relative to the electromechanical separation piece (of course, also relative to the first transmission plate) when driving the bolt assembly to translate.

[0160] In a specific embodiment, the surface of the first transmission plate 10 towards the bolt assembly 30 is further provided with a guide boss 12 for insertion into the second sliding groove 33, so that when the limiting flange 41 is located at the position of the second sliding groove 33 along the height direction of the first transmission plate 10, the guide boss 12 and the second sliding groove 33 guide the relative translation of the first transmission plate 10 and the bolt assembly 30.

[0161] That is, when the bolt assembly translates relative to the first transmission plate through the second sliding groove, the guide boss of the first transmission plate can guide the relative sliding between the two to prevent the sliding from being stuck.

[0162] In a specific embodiment, when installed in the first sliding groove 11, the electromechanical separation piece 40 includes a trigger portion 42 protruding relative to the first transmission plate 10 and the bolt assembly 30; so that when the dial transmission assembly 50 rotates around its rotating shaft, the trigger portion 42 is triggered to move the electromechanical separation piece 40 from the first position to the second position.

[0163] In combination with the above description, in order to facilitate the trigger of the electromechanical separation piece from the first position to the second position, one end of the electromechanical separation piece towards the dial transmission assembly can include a trigger portion, which is protruding relative to the first transmission plate and the bolt assembly when the electromechanical separation piece is installed in the first sliding groove.

[0164] In a specific embodiment, the trigger portion 42 includes a third abutting inclined surface 421; the dial transmission assembly 50 includes an arc-shaped arm 53, which is coplanar with the second transmission plate 20, and the arc-shaped arm 53 is configured to rotate around its rotating shaft in response to an external rotating operation; wherein the surface of the arc-shaped arm 53 towards the first transmission plate 10 is provided with a first arc-shaped boss 51, which is used to abut against the third abutting inclined surface 421 when the arc-shaped arm 53 rotates, and is used to drive the electromechanical separation piece 40 to slide along the limiting groove 34 to trigger the electromechanical separation piece 40 to move from the first position to the second position.

[0165] That is, in combination with the above description, the surface of the arc-shaped arm 53 towards the first transmission plate 10 is provided with a first arc-shaped boss 51, which is used to abut against the third abutting inclined surface 421 when the arc-shaped arm 53 rotates, and is used to drive the electromechanical separation piece 40 to slide along the limiting groove 34 to trigger the electromechanical separation piece 40 to move from the first position to the second position. Figure 1And Figure 2 In order to facilitate the movement of the electromechanical separation piece from the first position to the second position, the surface of the arc-shaped arm of the dial wheel transmission assembly is provided with a first arc-shaped boss, and the trigger part of the electromechanical separation piece comprises a third abutting inclined surface; thus, it can be understood that when the key drives the arc-shaped arm to rotate through the dial wheel of the lock cylinder, the first arc-shaped boss rotates, and in the process of rotation of the first arc-shaped boss, it abuts against the third abutting inclined surface and pushes the electromechanical separation piece to gradually contract from the first position until it contracts to the second position.

[0166] In a specific embodiment, the surface of the arc-shaped arm 53 away from the first transmission plate 10 is provided with a second arc-shaped boss 52, and the second arc-shaped boss 52 is used for being inserted into the arc-shaped guide groove 2 of the mounting shell 1 bearing the lock body transmission structure.

[0167] That is, in order to facilitate the installation of the dial wheel transmission assembly, the other surface of the arc-shaped arm of the dial wheel transmission assembly is provided with a second arc-shaped boss, so that the dial wheel transmission assembly can be inserted into the arc-shaped guide groove of the mounting shell through the second arc-shaped boss, preventing the dial wheel transmission assembly from shaking during rotation.

[0168] Regarding the above-mentioned dial wheel transmission assembly 50, first, in order to realize the rotation response of the dial wheel transmission assembly 50 to external rotation operation, in a possible implementation manner, the lock body transmission structure further comprises a lock cylinder dial wheel 70 in transmission connection with the dial wheel transmission assembly 50, and the rotation shaft of the lock cylinder dial wheel 70 is arranged along the thickness direction of the latch assembly 30; wherein the circumferential end of the lock cylinder dial wheel 70 is provided with a dial wheel boss 71; the dial wheel transmission assembly 50 comprises an arc-shaped arm 53 arranged in the same plane as the second transmission plate 20, and the arc-shaped arm 53 is sleeved on the circumferential end of the lock cylinder dial wheel 70; and the gap of the arc-shaped arm 53 avoids the dial wheel boss 71; so that when the external rotation operation acts on the lock cylinder dial wheel 70, the lock cylinder dial wheel 70 drives the arc-shaped arm 53 to rotate through the dial wheel boss 71 abutting against the two end portions of the arc-shaped arm 53, respectively.

[0169] That is, the dial wheel transmission assembly of the present embodiment can be in transmission connection with the lock cylinder dial wheel, that is, a true plug structure, and the overall safety is better.

[0170] Wherein, the circumferential end of the lock cylinder dial wheel is provided with a dial wheel boss.

[0171] Then, as described above, the dial wheel transmission assembly comprises an arc-shaped arm arranged in the same plane as the second transmission plate, the arc-shaped arm is sleeved on the circumferential end of the lock cylinder dial wheel, and the gap of the arc-shaped arm avoids the dial wheel boss of the lock cylinder dial wheel.

[0172] Thus, it can be understood that when the key is inserted and rotated, the key drives the lock cylinder to rotate, at this time, the boss of the dial can abut against the two ends of the arc-shaped arm and drive the arc-shaped arm to rotate in different directions (clockwise or counterclockwise), that is, the transmission connection between the dial and the dial transmission assembly is realized, that is, the rotation of the dial transmission assembly responds to the external rotation operation.

[0173] Secondly, in order to realize the transmission connection between the dial transmission assembly 50 and the second transmission plate 20, in a specific embodiment, the radially outer end surface of the arc-shaped arm 53 is provided with a pair of second dial rods 54 extending in the radially outward direction of the arc-shaped arm 53; one end of the second transmission plate 20 towards the dial transmission assembly 50 is provided with a transmission flange 22; wherein the transmission flange 22 is configured to be located in the sector region formed by the pair of second dial rods 54 at the position of the second transmission plate 20, so that the lock cylinder dial 70 drives the second transmission plate 20 to translate along its length direction when driving the arc-shaped arm 53 to rotate.

[0174] That is, the present embodiment can realize the transmission connection between the dial transmission assembly and the second transmission plate by the pair of second dial rods and the transmission flange arranged oppositely.

[0175] Among them, a pair of second dial rods can be arranged on the radially outer end surface of the arc-shaped arm, the second dial rods extending in the radially outward direction of the arc-shaped arm; then, the second transmission plate is provided with a transmission flange at the end portion towards the arc-shaped arm in the sector region corresponding to the pair of second dial rods.

[0176] Thus, it can be understood that when the above-mentioned lock cylinder dial drives the arc-shaped arm to rotate, the pair of second dial rods rotates accordingly, and the rotating pair of second dial rods can drive the second transmission plate to translate through the transmission flange, that is, realize the transmission connection between the dial transmission assembly and the second transmission plate.

[0177] In addition, it can be understood that the central angle between the pair of second dial rods should be determined according to the actual situation.

[0178] It can also be understood that by arranging the arc-shaped arm and the second transmission plate in the same plane, the thickness dimension of the lock body transmission structure can be reduced.

[0179] In a specific embodiment, the side of the transmission flange 22 away from the latch portion 31 of the latch assembly 30 is provided with a fourth abutting inclined surface 23 for abutting against one of the pair of second dial rods 54 away from the latch portion 31.

[0180] That is, similar to the above-mentioned abutting inclined surfaces, the fourth abutting inclined surface can be arranged on the side of the transmission flange away from the latch portion, so that one of the pair of second dial rods away from the latch portion can drive the latch assembly to extend out.

[0181] In a specific embodiment, the lock cylinder dial 70 is vertically aligned with the limiting slot 34 of the bolt assembly 30 when the bolt assembly 30 is in the extended locking state.

[0182] That is, the premise that the dial transmission assembly triggers the movement of the electromechanical separation member from the first position to the second position in response to the external rotating operation is that the bolt assembly is in the extended locking state, that is, when the bolt assembly is in the extended locking state, the lock cylinder dial needs to be vertically aligned with the limiting slot of the bolt assembly; or, when the bolt assembly is in the extended locking state, the lock cylinder dial and the dial transmission assembly should be vertically above or below the limiting slot.

[0183] In a possible implementation, the first transmission plate 10 can be combined with Figure 1 , Figure 2 and Figure 4 , the surface of the first transmission plate 10 facing the bolt assembly 30 is provided with a reset sliding groove 13 extending along the length direction of the first transmission plate 10; the surface of the bolt assembly 30 facing the first transmission plate 10 is provided with a reset protrusion 35; wherein the reset protrusion 35 is inserted into the reset sliding groove 13, and the reset sliding groove 13 is further provided with a second elastic body 102, one end of the second elastic body 102 abuts against the reset protrusion 35, and the other end of the second elastic body 102 abuts against one end of the reset sliding groove 13 away from the bolt part 31 of the bolt assembly 30, so that the second elastic body 102 resets the relative translation between the bolt assembly 30 and the first transmission plate 10.

[0184] Considering that the bolt assembly and the first transmission plate will be relatively displaced during the process of unlocking and locking with the key, thereby affecting the subsequent control of the bolt assembly by the driving motor, the embodiment further provides a reset function between the bolt assembly and the first transmission plate.

[0185] Specifically, the surface of the first transmission plate facing the bolt assembly is provided with a reset sliding groove extending along the length direction, and the reset sliding groove is through, for example, in the thickness direction of the first transmission plate; then, the surface of the bolt assembly facing the first transmission plate is provided with a reset protrusion inserted into the reset sliding groove; and a second elastic body (for example, a spring) is arranged at one end of the reset protrusion away from the bolt part and the reset sliding groove; thus, it can be understood that when the key is pulled out, the first transmission plate will be reset relative to the bolt assembly under the restoring force of the second elastic body, that is, reset to the position where the first sliding groove of the first transmission plate is vertically aligned with the limiting slot of the bolt assembly, and then the electromechanical separation member can be moved to the first position under the restoring force of the first elastic body, so that the first transmission plate and the bolt assembly are restored to the transmission connection state, facilitating the subsequent driving of the bolt assembly by the driving motor.

[0186] In combination with the above description of the first push rod being capable of exerting a limiting constraint on the rollback of the lock bolt assembly, it can also be applied to the process of driving the motor to drive the lock bolt assembly to lock.

[0187] That is, in one possible implementation, the second transmission gear 60 at least includes a dial wheel disc 61 arranged coplanar with the lock bolt assembly 30; wherein the end of the lock bolt assembly 30 towards the dial wheel disc 61 is recessed with a push groove 32, the groove side wall forming the push groove 32 includes a second side wall close to the lock bolt part 31 of the lock bolt assembly 30, and the second side wall includes a second abutting inclined surface 371 at the opening of the push groove 32, which is arranged inclined towards the lock bolt part 31; the circumferential end of the dial wheel disc 61 radially extends with a first push rod 63, which is inserted into the push groove 32; and, the second transmission gear 60 and the mounting shell 1 carrying the lock body transmission structure are further provided with a power-assisted torsional spring 103; when the driving motor 3 drives the lock bolt assembly 30 to translate from the retracted unlocking state to the extended locking state, the power-assisted torsional spring 103 is configured to provide power assistance to the rotation of the second transmission gear 60, so that the radial end of the first push rod 63 abuts against the second abutting inclined surface 371.

[0188] That is, in the process of driving the motor to drive the lock bolt assembly to translate from the retracted unlocking state to the extended locking state through the first transmission plate, the lock bolt assembly will drive the first push rod to rotate through the push groove, and in combination with the power assistance of the power-assisted torsional spring, when the lock bolt assembly is fully extended, the radial end of the first push rod can also abut against the second abutting inclined surface, that is, the first push rod is capable of exerting a limiting constraint on the rollback of the lock bolt assembly to lock the lock bolt assembly in the extended locking state.

[0189] As can be seen, by virtue of the arrangement of the first push rod, the push groove and the second abutting inclined surface, the present embodiment can lock the lock bolt assembly in the locking state during the process of driving the motor to drive the lock bolt assembly, thereby improving the safety in use.

[0190] Regarding the release of the limiting constraint of the first push rod 63 on the lock bolt assembly 30, in one specific implementation, in combination with Figure 2 , Figure 13 and Figure 15 , the first transmission plate 10 is in transmission connection with the driving motor 3 through a gear assembly; wherein the gear assembly includes coaxially arranged first transmission gear 80 and third transmission gear 90; the first transmission gear 80 is arranged coplanar with the first transmission plate 10 and in transmission connection with the first transmission plate 10; the third transmission gear 90 and the dial wheel disc 61 are separately arranged on the two sides of the first transmission gear 80, and the third transmission gear 90 is used for transmission connection with the driving motor 3;

[0191] The first transmission gear 80 has a fan-shaped transmission notch 83 recessed at its circumferential end. The third transmission gear 90 has a transmission boss 91 on its surface facing the first transmission gear 80. The transmission boss 91 is used to abut against the first radial wall 81 and the second radial wall 82 forming the transmission notch 83 respectively when rotating with the third transmission gear 90, so that the third transmission gear 90 and the first transmission gear 80 are connected in transmission. The first radial wall 81 is away from the latch portion 31, and the second radial wall 82 is close to the latch portion 31.

[0192] Furthermore, the height of the transmission boss 91 is greater than the thickness of the first transmission gear 80; the surface of the second transmission gear 60 facing the first transmission gear 80 is provided with an unlocking boss 65. The unlocking boss 65 is configured in the circumferential position of the second transmission gear 60 such that when the latch assembly 30 is in the extended locked state and the end of the first lever 63 abuts against the second abutting inclined surface 371, the projection area of ​​the unlocking boss 65 at least partially coincides with the projection area of ​​the transmission notch 83 along the axial direction of the first transmission gear 80, so that the unlocking boss 65 is abutted against by the transmission boss 91 before the second radial wall 82.

[0193] That is, before the drive motor drives the latch assembly from the extended locked state to the retracted unlocked state (or the drive motor drives the latch assembly to unlock), the drive motor should first release the limiting constraint of the first lever on the latch assembly.

[0194] In simple terms, this embodiment sets the gear assembly as two separate transmission gears: a first transmission gear connected to the first transmission plate and a third transmission gear connected to the drive motor. Before the third rotating gear (which can also be considered the main transmission gear due to its direct connection to the drive motor) unlocks the first transmission gear, the second transmission gear, equipped with a first lever, and the first transmission gear are offset, allowing the third transmission gear to first drive the second transmission gear to rotate. During this rotation, the second transmission gear can drive the first lever to release the limiting constraint on the latch assembly. After the limiting constraint is released, the third transmission gear can simultaneously drive the first and second transmission gears to rotate. At this time, the first transmission gear simultaneously drives the first transmission plate and the latch assembly, which are limited and locked by the electromechanical separation component, to retract. Of course, during this process, the second transmission gear can also apply force to the retraction of the latch assembly through the first lever.

[0195] In one specific embodiment, the gear assembly and the second transmission gear 60 are respectively located vertically above the first transmission plate 10 and the second transmission plate 20, and the dial drive assembly 50 is located vertically below the second transmission plate 20; or,

[0196] The gear assembly and the second transmission gear 60 are located vertically below the first transmission plate 10 and the second transmission plate 20 respectively, and the dial transmission assembly 50 is located vertically above the second transmission plate 20.

[0197] The driving motor can be located above the bolt assembly, i.e., the driving motor is located on top, which can reduce energy loss in the force transmission process, improve the unlocking force of the bolt assembly, and enable the driving motor to still overcome resistance to unlock in the case of abnormal large force on the bolt assembly, thereby improving the user experience.

[0198] Of course, the driving motor can also be located below the bolt assembly.

[0199] In a specific embodiment, the circumferential end of the third transmission gear 90 is at least partially provided with third meshing teeth 92 for transmission connection with the driving motor 3; the end of the first transmission plate 10 towards the gear assembly is provided with a first rack 14 extending along the length direction of the first transmission plate 10, and the circumferential end of the first transmission gear 80 is at least partially provided with first meshing teeth 84 in meshing connection with the first rack 14.

[0200] That is, similar to the transmission connection between the second transmission plate and the second transmission gear, the transmission connection between the first transmission plate and the first transmission gear can also adopt the rack and meshing tooth transmission connection mode, which is simple in structure.

[0201] Based on the lock body transmission structure disclosed in the above embodiments, the application further discloses an electronic lock device, which comprises a mounting shell for mounting on a door leaf.

[0202] The mounting shell is provided with at least a driving motor and a lock body transmission structure in transmission connection with the driving motor.

[0203] The lock body transmission structure comprises a bolt assembly and first and second transmission plates arranged on both sides along the thickness direction of the bolt assembly.

[0204] The bolt assembly and the first transmission plate are provided with an electromechanical separation member configured to be in transmission connection with the first transmission plate when in a first position and to disconnect the transmission connection between the bolt assembly and the first transmission plate when in a second position; and the first transmission plate is in transmission connection with the driving motor, and when the electromechanical separation member is in the first position, the driving motor drives the bolt assembly to translate along the length direction of the bolt assembly through the first transmission plate, so as to switch the bolt assembly between the extended locking state and the retracted unlocking state.

[0205] The second transmission plate is provided with a dial transmission assembly and a second transmission gear at two ends along the height direction of the second transmission plate, and the rotation shafts of the dial transmission assembly and the second transmission gear are arranged along the thickness direction of the locking tongue assembly; the dial transmission assembly is configured to drive the second transmission plate to move along the length direction of the second transmission plate when the dial transmission assembly rotates around the rotation shaft in response to an external rotation operation; and the dial transmission assembly is further configured to trigger the electromechanical separation piece to move from the first position to the second position when the dial transmission assembly rotates around the rotation shaft when the locking tongue assembly is in the extended locking state; and the second transmission gear is configured to be in transmission connection with the second transmission plate and the locking tongue assembly at the same time;

[0206] So that under the action of the external rotation operation, the dial transmission assembly drives the locking tongue assembly in the transmission disconnection state with the first transmission plate to switch between the extended locking state and the retracted unlocking state.

[0207] The above describes the basic principles of the present application in combination with specific embodiments, but it should be pointed out that the advantages, advantages, effects and the like mentioned in the present application are only examples and not limitations, and these advantages, advantages, effects and the like cannot be considered as the must-have of each embodiment of the present application. In addition, the above specific details are only for the purpose of example and for the purpose of understanding, and are not limited to the above specific details to realize the present application.

[0208] The block diagrams of the devices, apparatuses, equipment, systems involved in the present application are only illustrative examples and are not intended to require or imply the connection, arrangement, configuration shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, equipment, systems can be connected, arranged, configured in any manner. Words such as "include", "contain", "have" and the like are open-ended words, mean "including but not limited to", and can be used interchangeably. The words "or" and "and" used herein mean the word "and / or", and can be used interchangeably unless the context clearly indicates otherwise. The word "such as" used herein means the phrase "such as but not limited to", and can be used interchangeably.

[0209] It should also be noted that in the devices, equipment and methods of the present application, each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be considered as equivalent solutions of the present application.

[0210] The above description of the disclosed aspects is provided so that any person skilled in the art can make or use the present application. Various modifications to these aspects will be apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of the present application. Therefore, the present application is not intended to be limited to the aspects shown herein, but is intended to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0211] The foregoing description has been presented for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of the application to the forms disclosed herein. Although the example aspects and embodiments have been discussed with reference to particular aspects and embodiments, persons of ordinary skill in the art will appreciate that other variations, modifications, changes, additions, and subcombinations can be made to the described embodiments without departing from the scope of the application.

Claims

1. A lock body transmission structure, characterized by comprising: The lock body transmission structure comprises: a lock tongue assembly and a first transmission plate and a second transmission plate arranged on two sides along the thickness direction of the lock tongue assembly; wherein, the lock tongue assembly and the first transmission plate are provided with an electromechanical separation piece, the electromechanical separation piece is configured to: when in the first position, the lock tongue assembly and the first transmission plate are in transmission connection, when in the second position, the transmission connection between the lock tongue assembly and the first transmission plate is disconnected; and the first transmission plate is used for transmission connection with a driving motor, when the electromechanical separation piece is in the first position, the driving motor drives the lock tongue assembly to move along the length direction of the first transmission plate through the first transmission plate, so as to switch the lock tongue assembly between the extended locking state and the retracted unlocking state; wherein, the two ends of the second transmission plate in the height direction are respectively provided with a dial transmission assembly and a second transmission gear, the rotation shafts of the dial transmission assembly and the second transmission gear are arranged along the thickness direction of the lock tongue assembly; the dial transmission assembly is configured to: in response to an external rotating operation, the dial transmission assembly is used for driving the second transmission plate to move along the length direction of the second transmission plate when rotating around the rotation shaft of the dial transmission assembly; and when the lock tongue assembly is in the extended locking state, the dial transmission assembly is also used for triggering the electromechanical separation piece to move from the first position to the second position when rotating around the rotation shaft of the dial transmission assembly; the second transmission gear is configured to be in transmission connection with the second transmission plate and the lock tongue assembly at the same time; so that under the action of the external rotating operation, the dial transmission assembly drives the lock tongue assembly which is in transmission disconnected state with the first transmission plate to switch between the extended locking state and the retracted unlocking state.

2. The lock body drive structure according to claim 1, wherein Along the thickness direction, the second transmission gear comprises a dial rotating disc coplanar with the lock tongue assembly and a gear rotating disc coplanar with the second transmission plate, the dial rotating disc and the gear rotating disc are fixedly connected in opposite rotation directions; wherein, the gear rotating disc is in transmission connection with the second transmission plate, and the dial rotating disc is in transmission connection with the lock tongue assembly, so that the second transmission gear is configured to be in transmission connection with the second transmission plate and the lock tongue assembly at the same time.

3. The lock body transmission structure according to claim 2, wherein, the end of the second transmission plate towards the gear rotating disc is provided with a second rack, the second rack extends along the length direction of the second transmission plate, the circumferential end of the gear rotating disc is at least partially provided with a second meshing tooth, the second meshing tooth is in meshing connection with the second rack, so that the gear rotating disc is in transmission connection with the second transmission plate; the end of the lock tongue assembly towards the dial rotating disc is recessed with a dialing groove, the dialing groove extends from the end of the lock tongue assembly along the height direction of the lock tongue assembly, the circumferential end of the dial rotating disc radially extends with a first dialing rod, the first dialing rod is used for abutting a pair of groove side walls forming the dialing groove respectively when rotating with the second transmission gear, so that the dial rotating disc is in transmission connection with the lock tongue assembly.

4. The lock body drive structure according to claim 3, wherein The recess sidewall comprises a first sidewall away from the latch portion of the latch assembly and a second sidewall close to the latch portion; The first sidewall comprises a first abutting bevel at the opening of the poking recess, and the second sidewall comprises a second abutting bevel at the opening of the poking recess, the first abutting bevel and the second abutting bevel are oppositely inclined relative to the vertical direction, so that the first abutting bevel is used for abutting with the poking arm of the first poking rod, and the second abutting bevel is used for abutting with the radial end of the first poking rod.

5. The lock body drive structure according to claim 4, wherein The lock body transmission structure further comprises a power-assisted torsional spring, the power-assisted torsional spring comprises a pair of torsional spring arms; One of the torsional spring arms is limitingly installed on a mounting shell bearing the lock body transmission structure, and the other torsional spring arm is limitingly installed on the second transmission gear; And the power-assisted torsional spring is configured to provide power assistance to the rotation of the second transmission gear when driving the latch assembly to extend, so that the end of the first poking rod abuts against the second abutting bevel.

6. The lock body transmission structure according to claim 1, wherein The surface of the first transmission plate towards the latch assembly is provided with a first sliding groove extending along the height direction of the first transmission plate, and the first sliding groove is used for bearing the electromechanical separation piece; The surface of the latch assembly towards the first transmission plate is provided with a second sliding groove extending along the length direction of the first transmission plate, one end of the second sliding groove away from the latch portion of the latch assembly is connected with a limiting groove extending along the height direction of the latch assembly, and the limiting groove extends from the second sliding groove towards the dial transmission assembly; The electromechanical separation piece is provided with a limiting flange towards the latch assembly, and one end of the electromechanical separation piece away from the dial transmission assembly elastically abuts against the first transmission plate through a first elastic body arranged along the height direction of the first transmission plate; So that when the limiting flange is located at the position of the limiting groove along the height direction of the first transmission plate, the limiting groove limits the limiting flange along the length direction of the first transmission plate to drive the first transmission plate and the latch assembly to be transmissionally connected; And when the limiting flange is located at the position of the second sliding groove along the height direction of the first transmission plate, the limiting groove disappears to limit the limiting flange along the length direction of the first transmission plate to disconnect the transmission connection between the first transmission plate and the latch assembly.

7. The lock body drive structure according to claim 6, wherein The surface of the first transmission plate towards the latch assembly is further provided with a guide boss for being inserted into the second sliding groove, so that when the limiting flange is located at the position of the second sliding groove along the height direction of the first transmission plate, the guide boss and the second sliding groove guide the relative translation of the first transmission plate and the latch assembly.

8. The lock body drive structure according to claim 6, wherein When being installed in the first sliding groove, the electromechanical separation piece comprises a trigger portion protruding relative to the first transmission plate and the latch assembly; The trigger portion comprises a third abutting slope.

9. The lock body drive structure according to claim 8, wherein The trigger portion comprises a third abutting slope. The dial transmission assembly comprises an arc-shaped arm, which is arranged coplanarly with the second transmission plate, and is configured to rotate around the rotation axis of the arc-shaped arm in response to the external rotation operation. The arc-shaped arm is provided with a first arc-shaped boss on the surface thereof facing the first transmission plate, which is used to abut against the third abutting slope when the arc-shaped arm rotates, and is used to drive the electromechanical separation piece to slide along the limiting groove, so as to trigger the electromechanical separation piece to move from the first position to the second position.

10. The lock body drive structure of claim 9, wherein, The arc-shaped arm is provided with a second arc-shaped boss on the surface thereof facing away from the first transmission plate, which is used to be inserted into the arc-shaped guide groove of the mounting shell carrying the lock body transmission structure.

11. The lock body drive structure according to claim 6, wherein The second sliding groove and the limiting groove are arranged through along the thickness direction of the bolt assembly.

12. The lock body drive structure of claim 1, wherein, The lock body transmission structure further comprises: A lock cylinder dial is drivingly connected with the dial transmission assembly, and the rotation axis of the lock cylinder dial is arranged along the thickness direction of the bolt assembly. The circumferential end portion of the lock cylinder dial is provided with a dial boss; the dial transmission assembly comprises an arc-shaped arm arranged coplanarly with the second transmission plate, the arc-shaped arm is sleeved on the circumferential end portion of the lock cylinder dial; and the notch of the arc-shaped arm avoids the dial boss. When the external rotation operation acts on the lock cylinder dial, the lock cylinder dial drives the arc-shaped arm to rotate by abutting against both ends of the arc-shaped arm through the dial boss.

13. The lock body drive structure of claim 12, wherein, The radial outer end surface of the arc-shaped arm is provided with a pair of second dial rods extending in the direction of the radial outward of the arc-shaped arm; one end of the second transmission plate facing the dial transmission assembly is provided with a transmission flange; The transmission flange is arranged in the fan-shaped area formed by the pair of second dial rods at the position of the second transmission plate, so that the lock cylinder dial drives the second transmission plate to translate along the length direction of the second transmission plate when driving the arc-shaped arm to rotate.

14. The lock body drive structure of claim 13, wherein, The transmission flange is provided with a fourth abutting slope on the side thereof away from the bolt portion of the bolt assembly, which is used to abut against one of the pair of second dial rods away from the bolt portion.

15. The lock body drive structure according to claim 12, wherein, When the bolt assembly is in the extended locking state, the lock cylinder dial is aligned with the limiting groove of the bolt assembly in the vertical direction.

16. The lock body drive structure of claim 1, wherein, The first transmission plate is provided with a reset sliding groove on the surface thereof facing the bolt assembly, which extends along the length direction of the first transmission plate; the bolt assembly is provided with a reset boss on the surface thereof facing the first transmission plate. The reset protrusion is used for being inserted into the reset sliding groove, and a second elastic body is further arranged in the reset sliding groove, one end of the second elastic body abuts against the reset protrusion, and the other end of the second elastic body abuts against one end of the reset sliding groove away from the latch part of the latch assembly, so that the second elastic body resets the relative translation between the latch assembly and the first transmission plate.

17. The lock body drive structure according to claim 1, wherein The second transmission gear at least comprises a dial wheel disc arranged coplanar with the latch assembly; The end of the latch assembly towards the dial wheel disc is concave with a dialing groove, the groove side wall forming the dialing groove comprises a second side wall close to the latch part of the latch assembly, the second side wall comprises a second abutting inclined surface at the opening of the dialing groove, and the second abutting inclined surface is arranged to be inclined towards the latch part; The circumferential end of the dial wheel disc radially extends with a first dialing rod, and the first dialing rod is inserted into the dialing groove; The second transmission gear and the mounting shell bearing the lock body transmission structure are further provided with a power-assisted torsional spring; When the driving motor drives the latch assembly to translate from the retracted unlocking state to the extended locking state, the power-assisted torsional spring is configured to provide power assistance to the rotation of the second transmission gear, so that the radial end of the first dialing rod abuts against the second abutting inclined surface.

18. The lock body drive structure of claim 17, wherein, The first transmission plate is in transmission connection with the driving motor through a gear assembly; The gear assembly comprises coaxially arranged first transmission gear and third transmission gear; the first transmission gear is arranged coplanar with the first transmission plate and in transmission connection with the first transmission plate; the third transmission gear and the dial wheel disc are arranged on the two sides of the first transmission gear, and the third transmission gear is in transmission connection with the driving motor; The circumferential end of the first transmission gear is concave with a fan-shaped transmission gap, the surface of the third transmission gear towards the first transmission gear is provided with a transmission boss, the transmission boss is used for abutting against the first radial wall and the second radial wall forming the transmission gap respectively when the third transmission gear rotates, so that the third transmission gear is in transmission connection with the first transmission gear; the first radial wall is away from the latch part, and the second radial wall is close to the latch part; The height of the transmission boss is greater than the thickness of the first transmission gear; The surface of the second transmission gear towards the first transmission gear is provided with an unlocking boss, and the circumferential position of the unlocking boss is configured to: when the latch assembly is in the extended locking state and the end of the first dialing rod abuts against the second abutting inclined surface, the projection area of the unlocking boss at least partially coincides with the projection area of the transmission gap in the axial direction of the first transmission gear, so that the unlocking boss is abutted against by the transmission boss earlier than the second radial wall.

19. The lock body drive structure of claim 18, wherein, The gear assembly and the second transmission gear are respectively located vertically above the first transmission plate and the second transmission plate, and the dial wheel transmission assembly is located vertically below the second transmission plate; or, The gear assembly and the second transmission gear are located vertically below the first transmission plate and the second transmission plate respectively, and the dial transmission assembly is located vertically above the second transmission plate.

20. The lock body drive structure of claim 18, wherein, The third transmission gear is provided with third meshing teeth at least partially at the circumferential end thereof, and the third meshing teeth are used for transmission connection with the driving motor; The first transmission plate is provided with a first rack at the end thereof facing the gear assembly, the first rack extends along the length direction of the first transmission plate, and the first transmission gear is provided with first meshing teeth at least partially at the circumferential end thereof, and the first meshing teeth are in meshing connection with the first rack.

21. An electronic lock device, characterized by The electronic lock device comprises a mounting shell for mounting on a door leaf; The mounting shell is provided with at least a driving motor and a lock body transmission structure in transmission connection with the driving motor; The lock body transmission structure comprises: a lock bolt assembly, a first transmission plate and a second transmission plate which are arranged on both sides along the thickness direction of the lock bolt assembly; The lock bolt assembly and the first transmission plate are provided with an electromechanical separation member, and the electromechanical separation member is configured to: transmission connection between the lock bolt assembly and the first transmission plate when in the first position, disconnect the transmission connection between the lock bolt assembly and the first transmission plate when in the second position; The first transmission plate is used for transmission connection with the driving motor, and when the electromechanical separation member is in the first position, the driving motor drives the lock bolt assembly to translate along the length direction of the lock bolt assembly through the first transmission plate, so as to switch the lock bolt assembly between the extended locking state and the retracted unlocking state. The second transmission plate is provided with a dial transmission assembly and a second transmission gear at both ends in the height direction respectively, and the rotation shafts of the dial transmission assembly and the second transmission gear are arranged along the thickness direction of the lock bolt assembly. The dial transmission assembly is configured to: in response to an external rotation operation, the dial transmission assembly is used for driving the second transmission plate to translate along the length direction of the second transmission plate when rotating around the rotation shaft of the dial transmission assembly; and when the lock bolt assembly is in the extended locking state, the dial transmission assembly is also used for triggering the electromechanical separation member to move from the first position to the second position when rotating around the rotation shaft of the dial transmission assembly. The second transmission gear is configured to be in transmission connection with the second transmission plate and the lock bolt assembly simultaneously; so that under the action of the external rotation operation, the dial transmission assembly drives the lock bolt assembly which is in transmission disconnection state with the first transmission plate to switch between the extended locking state and the retracted unlocking state.

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