Lock control apparatus and smart door lock

Abstract

The present application discloses a lock control apparatus, comprising a main body, a drive mechanism, and a clamping mechanism. The drive mechanism is rotatably connected to the main body. The clamping mechanism comprises a mounting base, at least two clamping members slidably connected to the mounting base, and a first adjustment mechanism arranged on the mounting base. The drive mechanism is in drive connection with the mounting base. The drive mechanism is configured to drive the clamping mechanism to rotate. The at least two clamping members are arranged on the mounting base spaced apart. The first adjustment mechanism is in drive connection with the at least two clamping members. The first adjustment mechanism is configured to drive the at least two clamping members to slide relative to the mounting base, so that the at least two clamping members move toward or away from each other. The present application further discloses a smart door lock.

Description

Lock control device and smart door lock Technical Field

[0001] This application relates to the field of smart lock technology, and in particular to a lock control device and a smart door lock. Background Technology

[0002] Smart locks are widely used due to their convenience and security. However, when choosing a smart lock, some users do not want to replace their existing doors or the non-smart traditional door locks on them. Therefore, a lock control device can be installed on the traditional door lock, and the lock control device can drive the unlocking knob of the traditional door lock to turn, thereby realizing the unlocking and locking of the traditional door lock. Technical issues

[0003] Due to differences in usage habits and technical standards, the unlocking knobs of traditional door locks vary greatly in shape and size in different countries and regions. In order for the lock control device to be compatible with unlocking knobs of different shapes and sizes, various special accessories usually need to be designed, which will increase the manufacturing cost of the lock control device. Technical solutions

[0004] The purpose of this application is to provide a locking device and a smart door lock, which can hold unlocking knobs of different shapes and sizes, thereby increasing the applicability of the locking device and reducing its manufacturing cost.

[0005] This application provides a locking control device, including a main unit, a drive mechanism, and a clamping mechanism. The drive mechanism is rotatably connected to the main unit. The clamping mechanism includes a mounting base, at least two clamping members slidably connected to the mounting base, and a first adjustment mechanism disposed on the mounting base. The drive mechanism is driveably connected to the mounting base and is used to drive the clamping mechanism to rotate. At least two clamping members are spaced apart on the mounting base. The first adjustment mechanism is drively connected to at least two clamping members and is used to drive at least two clamping members to slide relative to the mounting base, so that at least two clamping members move towards or away from each other.

[0006] This application also provides a smart door lock, including a locking device and a lock control device as described above; the clamping mechanism is used to clamp the unlocking knob of the locking device, and the driving mechanism drives the clamping mechanism to rotate, so as to drive the unlocking knob to rotate and unlock the locking device. Beneficial effects

[0007] The locking device of this application, by setting the clamping member to be slidably connected to the mounting base, and setting the first adjustment mechanism to be drivenly connected to the clamping member, can drive at least two of the clamping members to move towards or away from each other through the first adjustment mechanism, so the distance between the clamping members is adjustable, so that the clamping members can clamp unlocking knobs of different shapes and sizes, thereby improving the versatility and applicability of the clamping mechanism and the entire locking device. This can save a lot of special accessories, thereby reducing the manufacturing cost of the locking device, improving the ease of use of the locking device, and thus improving the user experience. Attached Figure Description

[0008] Figure 1 is a three-dimensional structural diagram of a locking device in one embodiment.

[0009] Figure 2 is a three-dimensional structural diagram of Figure 1 from another perspective.

[0010] Figure 3 is a schematic diagram of the exploded structure of Figure 1.

[0011] Figure 4 is a side view of Figure 1.

[0012] Figure 5 is a cross-sectional view of Figure 4 along the AA direction.

[0013] Figure 6 is a cross-sectional view of Figure 4 along the BB direction.

[0014] Figure 7 is a schematic diagram of a partial cut-out of the locking device shown in Figure 1.

[0015] Figure 8 is a schematic diagram of the mounting bracket shown in Figure 3.

[0016] Figure 9 is a schematic diagram of the structure of the second fastener shown in Figure 3.

[0017] Figure 10 is a schematic diagram of the connection relationship between the clamping mechanism and the driving mechanism in the locking device shown in Figure 1.

[0018] Figure 11 is a three-dimensional structural diagram of Figure 10 from another perspective.

[0019] Figure 12 is a schematic diagram of the exploded structure of Figure 10.

[0020] Figure 13 is a cross-sectional view of Figure 10.

[0021] Figure 14 is a three-dimensional structural diagram of the locking device in another embodiment after the clamping mechanism is removed.

[0022] Figure 15 is a schematic diagram of the exploded structure of Figure 14.

[0023] Figure 16 is an exploded view of the locking device in another embodiment.

[0024] Figure 17 is a structural schematic diagram of Figure 16 from another perspective.

[0025] Figure 18 is a front view of the locking device shown in Figure 16.

[0026] Figure 19 is a schematic diagram of the structure of the raised block in Figure 16.

[0027] Figure 20 is a three-dimensional structural diagram of the locking device in another embodiment.

[0028] Figure 21 is a schematic diagram of the exploded structure of Figure 20.

[0029] Figure 22 is another exploded structural diagram of Figure 20.

[0030] Figure 23 is a schematic diagram of the exploded structure of the clamping mechanism in Figure 20.

[0031] Figure 24 is a cross-sectional view of the clamping mechanism in Figure 20.

[0032] Figure 25 is a partial structural schematic diagram of the clamping mechanism in Figure 20.

[0033] Figure 26 is a schematic diagram of the clamping component in Figure 20.

[0034] Figure 27 is another cross-sectional view of the clamping mechanism in Figure 20.

[0035] Figure 28 is a schematic diagram of the exploded structure of the clamping mechanism in Figure 20.

[0036] Figure 29 is a schematic diagram of the adjusting component in Figure 28.

[0037] Figure 30 is a three-dimensional structural diagram of the locking device in another embodiment.

[0038] Figure 31 is a cross-sectional view of Figure 30.

[0039] Figure 32 is a planar perspective view of the structure of Figure 30 after the clamping mechanism is removed.

[0040] Figure 33 is a schematic diagram of the exploded structure of Figure 30.

[0041] Figure 34 is a schematic diagram of the third adjustment mechanism in Figure 30.

[0042] Figure 35 is a cross-sectional view of Figure 34.

[0043] Figure 36 is a schematic diagram of the exploded structure of Figure 34.

[0044] Figure 37 is a schematic diagram of the structure after further decomposition of Figure 36.

[0045] Figure 38 is a cross-sectional view of the locking device in another embodiment.

[0046] Figure 39 is an exploded view of the locking device shown in Figure 38.

[0047] Figure 40 is a schematic diagram of the third adjustment mechanism in Figure 39.

[0048] Figure 41 is a cross-sectional view of Figure 40.

[0049] Figure 42 is a schematic diagram of the exploded structure of Figure 40.

[0050] Figure 43 is a schematic diagram of the elastic element in Figure 42.

[0051] Figure label:

[0052] Locking device 10;

[0053] Main unit 1, housing 11, first fixing hole 111, limiting slide groove 112, mounting slide groove 113, first mating part 114, limiting groove 115, electric drive assembly 12, control unit 13, fixing bracket 14, guide slide groove 141, second fixing hole 142, shielding part 15, second mating part 151;

[0054] Drive mechanism 2, operating knob 21, knob shaft 22, transmission seat 23, first positioning post 231, first fixing part 232, transmission component 24;

[0055] Clamping mechanism 3, mounting base 31, mounting body 31A, connecting shaft 31B, bottom shell 31C, side cylinder 31D, top cover 31E, accommodating cavity 310, guide part 311, first groove 3111, second groove 3112, stepped surface 3113, mounting groove 312, first hole 313, second hole 314, positioning hole 315, connecting hole 316, protrusion 317, clamping member 32, helical tooth 32A, rack 32B, clamping part 321, free end 3210, first mounting hole 3211, accommodating groove 3212, sliding limit part 3213, sliding Part 322, sliding body 3221, lug 3222, abutting part 323, fastening hole 3231, sliding mating part 3232, first fastener 324, fixing part 325, fixing block 326, first adjusting mechanism 33, adjusting seat 331, side plate part 331A, outer ring part 331B, spiral pattern 3311, anti-slip part 3312, perforation 3313, gear 332, adjusting part 333, limiting groove 3330, adjusting rod 3331, first rod 3331A, second rod 3331B, limiting surface 3331C, adjusting cap 3332;

[0056] Second adjustment mechanism 4, mounting bracket 41, connecting seat 411, reinforcing rib 4111, support arm 412, limiting hole 4121, adjusting slide 4122, second fastener 42, fastening body 421, limiting protrusion 422, rod 423, pad block 43, first snap-fit ​​part 431, second snap-fit ​​part 432, third fastener 44;

[0057] Third adjusting mechanism 5, fixed base 51, base body 51A, protruding post 51B, first surface 510, protruding shaft 511, adjusting assembly 52, first sliding member 521, first sliding body 521A, first boss 521B, second sliding member 522, second sliding body 522A, second boss 522B, second positioning post 5221, second fixing part 5222, first guide member 53, first guide rod 531, first guide cap 532, first slide groove 54, third groove 541, fourth groove 542 First step surface 543, second guide member 55, second guide rod 551, second guide cap 552, second slide groove 56, fifth groove 561, sixth groove 562, second step surface 563, movable member 57, second surface 570, body part 571, mounting post 572, third positioning post 573, third fixing part 574, clearance through hole 575, elastic member 58, torsion part 581, connecting part 582, clearance channel 583, fourth fastener 591, pressure block 592, fifth fastener 593. Embodiments of the present invention

[0058] The specific embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but are not intended to limit the scope of this application.

[0059] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0060] The directional terms such as "upper," "lower," "left," "right," "front," "back," "top," and "bottom" (if applicable) used in the specification and claims of this application are defined according to the position of the structures in the drawings and the relative positions of the structures, and are only for the purpose of clarity and convenience in expressing the technical solution. It should be understood that the use of directional terms should not limit the scope of protection claimed in this application.

[0061] Referring to Figures 1 to 13, the lock control device 10 provided in this embodiment is installed on a door (not shown) and corresponds to the unlocking knob (not shown) of a traditional door lock. The unlocking knob of a traditional door lock is installed on the indoor side of the door, allowing the user to unlock and lock the lock by rotating it. After being installed on the door, the lock control device 10 provided in this application can electrically / manually rotate the unlocking knob of the traditional door lock, thereby achieving automatic / manual unlocking and locking of the traditional door lock.

[0062] The lock control device 10 includes a main unit 1, a drive mechanism 2, and a clamping mechanism 3. The drive mechanism 2 is rotatably connected to the main unit 1, and the clamping mechanism 3 is drive-connected to the drive mechanism 2. The clamping mechanism 3 is located on the side of the main unit 1 facing the door. The clamping mechanism 3 is used to clamp the unlocking knob of a traditional door lock. When the drive mechanism 2 rotates relative to the main unit 1, the clamping mechanism 3 and the clamped unlocking knob will rotate synchronously with the drive mechanism 2. That is, the drive mechanism 2 drives the unlocking knob of the traditional door lock to rotate through the clamping mechanism 3, thereby achieving the unlocking and locking of the traditional door lock. Since the unlocking knob of the traditional door lock is located inside the room, and the clamping mechanism 3 is used to clamp the unlocking knob of the traditional door lock, the main unit 1, drive mechanism 2, and clamping mechanism 3 are all installed on the side of the door facing inside the room.

[0063] In one embodiment, the host 1 includes a housing 11, an electric drive assembly 12, and a control unit 13. Both the electric drive assembly 12 and the control unit 13 are housed within the housing 11, and the control unit 13 is electrically connected to the electric drive assembly 12. The drive mechanism 2 is rotatably connected to the housing 11, and the electric drive assembly 12 is driveably connected to the drive mechanism 2. The control unit 13 may include a control motherboard, which controls the operation of the electric drive assembly 12. Optionally, the electric drive assembly 12 includes a motor (not shown) and a transmission assembly (not shown). The motor and transmission assembly are housed within the housing 11. The motor is electrically connected to the control unit 13, the transmission assembly is connected to the output end of the motor, and the transmission assembly is driveably connected to the clamping mechanism 3. The motor drives the drive mechanism 2 and the clamping mechanism 3 to rotate via the transmission assembly. The transmission assembly can be a gear transmission assembly, a chain transmission assembly, etc.

[0064] The main unit 1 also includes a communication unit (not shown), which is electrically connected to the control unit 13. The communication unit receives lock / unlock signals, and the control unit 13 controls the electric drive assembly 12 based on these signals to rotate the drive mechanism 2 and the clamping mechanism 3, thus achieving electric unlocking and locking. That is, the drive mechanism 2 can rotate relative to the main unit 1 under the drive of the electric drive assembly 12, or it can rotate relative to the main unit 1 manually, thereby rotating the clamping mechanism 3. Optionally, a clutch device (not shown) can be provided between the electric drive assembly 12 and the drive mechanism 2 to prevent interference between manual and electric rotation of the drive mechanism 2.

[0065] The lock control device 10 of this application has two locking and unlocking methods: manual and electric. 1. The user can manually turn the drive mechanism 2, causing the drive mechanism 2 to drive the clamping mechanism 3 connected to it to rotate, thereby turning the unlocking knob of the traditional door lock to achieve manual locking and unlocking. 2. The drive mechanism 2 can be rotated by the electric drive component 12 in the host 1, causing the drive mechanism 2 to drive the clamping mechanism 3 connected to it to rotate, thereby turning the unlocking knob of the traditional door lock to achieve electric locking and unlocking. In an optional embodiment, the lock control device 10 may also include a control panel (not shown) installed outdoors. The control panel can receive locking and unlocking commands via password, fingerprint, Bluetooth, or NFC (Near Field Communication), and send a locking and unlocking signal to the host 1 indoors upon receiving the locking and unlocking command. After receiving the locking and unlocking signal, the communication unit in the host 1 controls the electric drive component 12 in the host 1 to work, so as to drive the drive mechanism 2, the clamping mechanism 3, and the unlocking knob to rotate. Of course, the lock / unlock signal can also be sent directly to the indoor main unit 1 via remote control, causing the electric drive component 12 inside the main unit 1 to drive the drive mechanism 2, the clamping mechanism 3, and the unlocking knob to rotate. Understandably, when the drive mechanism 2 is manually rotated from inside, the traditional door lock can also be deadbolted.

[0066] Referring to Figures 1, 10 to 13, in one embodiment, the clamping mechanism 3 includes a mounting base 31, at least two clamping members 32 slidably connected to the mounting base 31, and a first adjusting mechanism 33 disposed on the mounting base 31. A driving mechanism 2 is driveably connected to the mounting base 31 and is used to drive the mounting base 31 and the entire clamping mechanism 3 to rotate synchronously. The host machine 1 can also drive the mounting base 31 and the entire clamping mechanism 3 to rotate synchronously via the driving mechanism 2. At least two clamping members 32 are spaced apart on the mounting base 31, and are spaced apart circumferentially along the mounting base 31. The at least two clamping members 32 cooperate with each other to clamp the unlocking knob of a conventional door lock. The first adjusting mechanism 33 is movably connected to the mounting base 31 and is driveably connected to the at least two clamping members 32. The first adjustment mechanism 33 is used to drive at least two clamping members 32 to slide relative to the mounting base 31 so that the at least two clamping members 32 move toward each other or away from each other (i.e., the at least two clamping members 32 move toward the side closer to each other or toward the side farther away from each other), thereby changing the distance between the at least two clamping members 32 so that the at least two clamping members 32 can clamp unlocking knobs of different shapes and sizes.

[0067] Specifically, the shape and size (e.g., thickness) of the unlocking knobs vary among different door lock models. If a structure is adopted where the distance between the two clamping members 32 cannot be adjusted, the lock control device 10 would need to be equipped with various different accessories to accommodate unlocking knobs of different sizes. This would increase the manufacturing cost of the lock control device 10 and force users to purchase a large number of unnecessary accessories, thereby reducing the user experience of the lock control device 10. In this embodiment, the first adjusting mechanism 33 drives at least two clamping members 32 to move towards or away from each other, so the distance between the clamping members 32 is adjustable. This allows the clamping members 32 to clamp unlocking knobs of different shapes and sizes to adapt to lock devices of different regions and different models / specifications, thereby improving the versatility and applicability of the clamping mechanism 3 and the entire lock control device 10. This can save a large number of special accessories, thereby reducing the manufacturing cost of the lock control device 10 and improving the ease of use of the lock control device 10, thus improving the user experience.

[0068] In this embodiment, the drive mechanism 2 includes an operating knob 21 and a knob shaft 22 connected to each other. The operating knob 21 and the knob shaft 22 are integrally connected, and the operating knob 21 is used for the user to turn it. The operating knob 21 and the clamping mechanism 3 are located on opposite sides of the main unit 1, respectively. The knob shaft 22 is inserted into the main unit 1 and is drivenly connected to the mounting base 31. The electric drive assembly 12 is drivenly connected to the knob shaft 22. Both the electric drive assembly 12 and the operating knob 21 can drive the knob shaft 22 to rotate, thereby driving the clamping mechanism 3 to rotate.

[0069] Referring to Figures 1, 10 to 13, in one embodiment, the first adjustment mechanism 33 includes an adjustment seat 331, which is rotatably disposed on the outside of the mounting base 31. The adjustment seat 331 is convexly connected to at least two clamping members 32. When the adjustment seat 331 rotates, it can drive at least two clamping members 32 to move towards or away from each other. Whether the mounting base 31 is driven to rotate manually or electrically by the drive assembly 12, the mounting base 31 can drive the clamping members 32 and the adjustment seat 331 to rotate, realizing the overall rotation of the clamping mechanism 3. This avoids the situation where the clamping member 32 releases the unlocking knob due to the rotation of the mounting base 31 relative to the adjustment seat 331, ensuring the reliability of the clamping member 32.

[0070] In this embodiment, there are two clamping members 32, which are arranged radially opposite to each other along the mounting base 31. By turning the adjusting base 331, the adjusting base 331 is rotated, thereby causing the two clamping members 32 to move closer or further apart, so that the two clamping members 32 move in opposite directions to adjust the distance between the two clamping members 32. This allows the distance between the two clamping members 32 to be adapted to the thickness of the unlocking knob, so that the two clamping members 32 can accurately clamp the unlocking knob.

[0071] Of course, in other embodiments, the number of clamping members 32 can be more, such as three or four, etc., with multiple clamping members 32 evenly spaced along the circumference of the mounting base 31. When the adjusting base 331 drives the multiple clamping members 32 to slide relative to the mounting base 31, the multiple clamping members 32 can simultaneously retract inward or expand outward, thereby achieving reliable clamping of the unlocking knob. This application only uses two clamping members 32 as an example for illustration. The specific structure and working principle of the clamping mechanism 3 when the number of clamping members 32 is other is substantially the same as the specific structure and working principle of the clamping mechanism 3 when the number of clamping members 32 is two, and will not be described again in this application.

[0072] Referring to Figures 1, 10 to 13, in one embodiment, the inner wall of the adjusting seat 331 is provided with a spiral pattern 3311, and each clamping member 32 has a spiral tooth 32A at one end facing the adjusting seat 331. The spiral teeth 32A of at least two clamping members 32 respectively engage with the spiral pattern 3311. When the adjusting seat 331 rotates, the spiral pattern 3311 can drive the spiral teeth 32A to move, so that at least two clamping members 32 move towards each other or away from each other.

[0073] Specifically, in this embodiment, the spiral teeth 32A on the two clamping members 32 have opposite spiral directions. When the adjusting seat 331 rotates, it can drive the two clamping members 32 to move in opposite directions, so that the two clamping members 32 move closer to each other or further away from each other. When the adjusting seat 331 is rotated clockwise, the adjusting seat 331 can drive the two clamping members 32 to move closer to each other through the engagement of the spiral threads 3311 and the spiral teeth 32A, so as to reduce the distance between the two clamping members 32; when the adjusting seat 331 is rotated counterclockwise, the adjusting seat 331 can drive the two clamping members 32 to move further away from each other through the engagement of the spiral threads 3311 and the spiral teeth 32A, so as to increase the distance between the two clamping members 32.

[0074] Referring to Figures 1, 10 to 13, in one embodiment, the adjustment seat 331 includes a side plate portion 331A and an outer ring portion 331B connected to the side plate portion 331A. Specifically, the side plate portion 331A and the outer ring portion 331B are integrally connected. The mounting seat 31 has a cylindrical structure as a whole. The side plate portion 331A has a circular plate structure, and the outer ring portion 331B has a circular ring structure. The outer ring portion 331B is disposed on the outer periphery of the mounting seat 31. The side plate portion 331A is located on the side of the mounting seat 31 closer to the main unit 1, and a spiral pattern 3311 is disposed on the inner wall of the side plate portion 331A (that is, the spiral pattern 3311 is disposed on the side wall of the side plate portion 331A closer to the mounting seat 31).

[0075] The outer ring portion 331B is used for user screwing. An anti-slip portion 3312 is provided on the outer wall of the outer ring portion 331B, surrounding its outer periphery. The anti-slip portion 3312 increases the friction when the operator screws the adjusting seat 331, preventing slippage and facilitating manual operation. In this embodiment, the anti-slip portion 3312 has a striped structure. However, in other embodiments, the anti-slip portion 3312 may also be anti-slip bumps or an anti-slip coating.

[0076] In one implementation, the axial height of the adjusting seat 331 is not less than 8mm, for example, 8mm to 10mm. That is, the axial height of the adjusting seat 331 is greater than or equal to 8mm, which ensures that the adjusting seat 331 has a certain height in the axial direction, making it convenient for operators to manually tighten the adjusting seat 331.

[0077] In one implementation, the diameter of the adjusting seat 331 is in the range of 30mm to 40mm. When the diameter of the adjusting seat 331 is within the above range, it can ensure that the clamping member 32 has sufficient movement space, so that the two clamping members 32 can reliably clamp the unlocking knob, and at the same time, it can also facilitate the manual turning of the adjusting seat 331.

[0078] In one implementation, the movement distance of the clamping member 32 relative to the mounting base 31 ranges from 0mm to 8mm. When the adjusting base 331 drives the movement distance of each clamping member 32 within the above range, the distance between the two clamping members 32 can be better adapted to the thickness of the unlocking knob, thereby enabling the clamping member 32 to clamp unlocking knobs of different thicknesses.

[0079] Referring to Figures 1, 10 to 13, in one embodiment, each clamping member 32 includes a clamping portion 321 and a sliding portion 322 connected to the clamping portion 321. The clamping portion 321 is located on the side of the mounting base 31 away from the main unit 1, and is used to clamp the unlocking knob. A helical tooth 32A is disposed on the side of the sliding portion 322 away from the clamping portion 321. The mounting base 31 is provided with a guide portion 311, and the sliding portions 322 of each clamping member 32 are slidably connected to the guide portion 311. The sliding portions 322 can slide along the guide portion 311, meaning the guide portion 311 can guide and limit the movement of the sliding portions 322. A first adjusting mechanism 33 is used to drive the sliding portions 322 of at least two clamping members 32 to slide along the guide portion 311 respectively, so that the clamping portions 321 of at least two clamping members 32 move towards or away from each other, thereby adjusting the distance between the clamping portions 321 of at least two clamping members 32.

[0080] Specifically, in this embodiment, when the adjusting seat 331 rotates, it drives the two clamping members 32 to move through the meshing of the spiral thread 3311 and the spiral tooth 32A. At this time, the two clamping members 32 will tend to rotate along the spiral thread 3311. However, due to the sliding limit of the guide part 311 and the sliding part 322, the clamping members 32 can only slide along the guide part 311 through the sliding part 322 so that the two clamping members 32 slide relative to the mounting seat 31.

[0081] In this embodiment, the guide portion 311 is a groove provided on the mounting base 31. The groove extends radially along the mounting base 31 and passes through the mounting base 31 radially. The sliding portion 322 is a sliding protrusion that is slidably disposed in the groove. Of course, in other embodiments, the guide portion 311 can also be a slide rail, and the sliding portion 322 can be a groove that is slidably disposed in the slide rail.

[0082] Referring to Figures 10 to 13, in one embodiment, the mounting base 31 is further provided with a mounting groove 312, which extends radially along the mounting base 31 and penetrates axially along the mounting base 31. One end of the clamping member 32 is mounted in the mounting groove 312, and the helical teeth 32A at the end of the clamping member 32 can extend through the mounting groove 312 so that the clamping member 32 can engage with the helical threads 3311 through the helical teeth 32A. The guide portion 311 is provided in the mounting groove 312 so that the clamping member 32 can slide and engage with the guide portion 311 through the sliding portion 322. When the guide portion 311 is a groove, the guide portion 311 is recessed in the inner wall of the mounting groove 312, that is, the guide portion 311 is formed by the recess of the inner wall of the mounting groove 312; when the guide portion 311 is a slide rail, the slide rail can also be provided in the inner wall of the mounting groove 312, for example, the slide rail is formed by the protrusion of the inner wall of the mounting groove 312.

[0083] Referring to Figures 1, 10 to 13, in one embodiment, the mounting base 31 includes a mounting body 31A and a connecting shaft 31B. The connecting shaft 31B is fixedly connected to the mounting body 31A and is located on the surface of the mounting body 31A away from the clamping member 32. The mounting body 31A is cylindrical, and the connecting shaft 31B is coaxially arranged with the mounting body 31A. A guide portion 311 and a mounting groove 312 are both provided on the mounting body 31A. The connecting shaft 31B is fixedly connected to the drive mechanism 2, thereby enabling both the drive mechanism 2 and the electric drive assembly 12 within the main unit 1 to drive the mounting body 31A and the clamping member 32 to rotate via the connecting shaft 31B.

[0084] Specifically, in this embodiment, the side plate portion 331A of the adjusting seat 331 is provided with a through hole 3313, through which the connecting shaft 31B passes. The connecting shaft 31B is fixedly connected to the knob shaft 22 of the drive mechanism 2 by a fixing member 325. One end of the fixing member 325 passes through the connecting shaft 31B and is fixedly connected to the knob shaft 22. The fixing member 325 can be a threaded part or other structural parts that can achieve a fastening connection.

[0085] Referring to Figures 10 to 13, in one embodiment, each clamping member 32 further includes an abutment member 323 connected to the clamping portion 321. The abutment member 323 abuts against the unlocking knob to clamp it. The abutment member 323 can move relative to the clamping portion 321 towards or away from the mounting base 31 to adjust the length of the free end 3210 of the abutment member 323 protruding from the clamping portion 321 (i.e., adjust the protrusion size of the abutment member 323 relative to the clamping portion 321). The free end 3210 of the clamping portion 321 is also the end of the clamping portion 321 away from the mounting base 31.

[0086] Specifically, the size by which the unlocking knob protrudes from the door body is the height of the unlocking knob. If the height of the unlocking knob is normal, after the locking device 10 is installed on the door body, the unlocking knob is located precisely between the two clamping members 32, and the two clamping members 32 can accurately clamp the unlocking knob when they are close to each other. If the height of the unlocking knob is small, after the locking device 10 is installed on the door body, there is a certain distance between the unlocking knob and the two clamping members 32, and the two clamping members 32 cannot clamp the unlocking knob. This application provides a retractable abutment member 323 on the clamping part 321. The abutment member 323 can extend or retract along the height direction of the unlocking knob to adjust the extension size of the abutment member 323 relative to the clamping part 321, that is, to adjust the size of the clamping member 32 along the height direction of the unlocking knob, so that the clamping member 32 can clamp unlocking knobs of different heights.

[0087] Referring to Figures 10 to 13, in one embodiment, each clamping member 32 further includes a first fastener 324, which can be a screw or the like. The abutment member 323 and the clamping portion 321 are fixedly connected by the first fastener 324. The first fastener 324 can pass through the clamping portion 321 and be threadedly connected to the abutment member 323, or the first fastener 324 can pass through the abutment member 323 and be threadedly connected to the clamping portion 321. At least two fastening holes 3231 are provided on the abutment member 323 or the clamping portion 321, and the at least two fastening holes 3231 are spaced apart along the moving direction of the abutment member 323. When the first fastener 324 engages with different fastening holes 3231, the length of the free end 3210 of the abutment member 323 protruding from the clamping portion 321 changes.

[0088] Specifically, in this embodiment, the clamping part 321 is provided with a first mounting hole 3211, and the abutment member 323 is provided with at least two fastening holes 3231 spaced apart along its moving direction. The fastening holes 3231 can be threaded holes. When the abutment member 323 moves along the clamping part 321, the corresponding fastening hole 3231 on the abutment member 323 is coaxial with the first mounting hole 3211. The first fastener 324 passes through the first mounting hole 3211 and is installed in the fastening hole 3231, so that the abutment member 323 is fixedly connected to the clamping part 321. In other embodiments, the abutment member 323 can be provided with an elongated hole such as a waist-shaped hole. When the fixed position of the first fastener 324 in the elongated hole changes, the protrusion length of the abutment member 323 relative to the free end 3210 of the clamping part 321 can also be changed.

[0089] In other embodiments, at least two fastening holes 3231 may also be provided on the clamping part 321. When the first fastener 324 is engaged with different fastening holes 3231, the length of the free end 3210 of the abutment 323 protruding from the clamping part 321 can also be changed.

[0090] In one implementation, the number of fastening holes 3231 is two or three, and the distance between the centers of two adjacent fastening holes 3231 ranges from 3mm to 6mm. This allows the abutment member 323 to be adjusted in multiple positions, enabling it to extend to different lengths, thus allowing the clamping mechanism 3 to be compatible with unlocking knobs of different models / specifications. Of course, the number of fastening holes 3231 can also be other than those specified.

[0091] Referring to Figures 10 to 13, in one embodiment, the clamping part 321 is provided with a sliding limiting part 3213, and the abutment member 323 is provided with a sliding engagement part 3232. The sliding engagement part 3232 is slidably connected to the sliding limiting part 3213 to guide and limit the movement of the abutment member 323 relative to the clamping part 321. The sliding limiting part 3213 is a groove provided on the clamping part 321, and the sliding engagement part 3232 is a sliding protrusion provided on the abutment member 323. The sliding protrusion is slidably disposed in the groove. Alternatively, the sliding limiting part 3213 can be a slide rail, and the sliding engagement part 3232 can be a groove, with the groove slidably disposed in the slide rail. In one embodiment, the clamping part 321 is provided with a recessed receiving groove 3212, the abutting member 323 is movably disposed in the receiving groove 3212, and the sliding limiting part 3213 is formed by the recess of the inner wall of the receiving groove 3212; both the sliding limiting part 3213 and the receiving groove 3212 extend to the free end 3210 of the clamping part 321.

[0092] Referring to Figures 10 to 13, in one embodiment, the abutment 323 is disposed on the side of the clamping portion 321 facing the other clamping member 32. Of course, in other embodiments, the abutment 323 may also be disposed on the side of the clamping portion 321 away from the other clamping member 32.

[0093] Referring to Figures 10 to 13, in one embodiment, the abutment 323 is a plate-shaped or block-shaped structure. The flexibility of the abutment 323 is greater than that of the clamping part 321. For example, the abutment 323 can be made of plastic material, while the clamping part 321 can be made of metal material. This increases the friction between the abutment 323 and the unlocking knob, preventing the abutment 323 from detaching from the unlocking knob, thereby improving the stability and reliability of the connection between the clamping mechanism 3 and the unlocking knob. Simultaneously, the surface of the abutment 323 that abuts against the unlocking knob can be provided with uneven anti-slip stripes, further increasing the friction between the abutment 323 and the unlocking knob.

[0094] Referring to Figures 1 to 9, in one embodiment, the lock control device 10 further includes a second adjustment mechanism 4, which is connected to the housing 11 of the main unit 1. The second adjustment mechanism 4 is used to install onto the door body and can adjust the distance between the housing 11 and the door body, thereby adjusting the distance between the clamping mechanism 3 and the door body.

[0095] Specifically, because the height of the unlocking knob protruding from the door surface varies depending on the model / type of door lock, when the lock control device 10 is installed on the door, the clamping mechanism 3 may not be able to accurately align with the unlocking knob, making it impossible for the clamping mechanism 3 to clamp the unlocking knob (if the distance between the clamping mechanism 3 and the unlocking knob is too large or too small, the clamping mechanism 3 cannot effectively clamp the unlocking knob), thus preventing the unlocking knob from unlocking. This embodiment addresses this by providing a second adjustment mechanism 4, which is adjusted according to the height of the unlocking knob to adjust the distance between the housing 11 and the door, thereby adjusting the distance between the housing 11 and the unlocking knob, allowing the clamping mechanism 3 to accurately clamp the unlocking knob. Therefore, regardless of the height of the unlocking knob protruding from the door, the clamping mechanism 3 can be aligned with and clamp the unlocking knob by adjusting the second adjustment mechanism 4, enabling the lock control device 10 to adapt to unlocking knobs of different heights, increasing the applicability of the lock control device 10, and ensuring the performance of the lock control device 10.

[0096] Referring to Figures 1 to 9, in one embodiment, the second adjustment mechanism 4 includes a mounting bracket 41 and a second fastener 42. The mounting bracket 41 is slidably connected to the housing 11 and is used to mount to the door. The mounting bracket 41 and the housing 11 are fixedly connected by the second fastener 42.

[0097] Mounting bracket 41 serves as the base for mounting the second adjustment mechanism 4 in this embodiment. Mounting bracket 41 is slidably mounted on housing 11. When installing the lock control device 10, mounting bracket 41 is installed on the door body, and housing 11 is slid along mounting bracket 41 to adjust the distance between housing 11 and the door body so that clamping mechanism 3 can be aligned with the unlocking knob. Then, mounting bracket 41 and housing 11 are fixedly connected by the second fastener 42 to prevent housing 11 from sliding relative to mounting bracket 41. In other words, mounting bracket 41 is located between housing 11 and the door body. Optionally, mounting bracket 41 can be fixed to the door body by adhesive, screws, or other methods.

[0098] It is worth noting that when adjusting the distance between the housing 11 and the door, this application can adjust the housing 11 to slide relative to the mounting bracket 41, adjust the mounting bracket 41 to slide relative to the housing 11, or adjust the housing 11 and the mounting bracket 41 to slide simultaneously.

[0099] Referring to Figures 1 to 9, in one embodiment, the mounting bracket 41 includes a connecting seat 411 and support arms 412 disposed on opposite sides of the connecting seat 411. The connecting seat 411 is used for mounting to the door body; the support arms 412 are fixedly connected to the connecting seat 411 and extend along the moving direction of the mounting bracket 41. The support arms 412 are slidably connected to the housing 11, and the support arms 412 and the housing 11 are fixedly connected by a second fastener 42.

[0100] The connecting seat 411 serves as the base for mounting the mounting bracket 41. The connecting seat 411 can be installed onto the door body. Support arms 412 are symmetrically arranged on opposite sides of the connecting seat 411 and extend away from the door body. The connecting seat 411 is slidably connected to the housing 11 via the support arms 412. During installation, the connecting seat 411 is first fixed to the door body, then the housing 11 is slid along the support arms 412 to adjust the distance between the housing 11 and the door body, aligning the clamping mechanism 3 with the unlocking knob. Finally, the support arms 412 and the housing 11 are fixedly connected via the second fastener 42 to prevent the housing 11 from moving along the support arms 412.

[0101] In one embodiment, the connecting seat 411 and the support arm 412 are made of sheet metal and are an integral structure. This ensures the structural strength of the mounting bracket 41 to reliably support the locking device 10 and facilitates the processing and forming of the mounting bracket 41. Of course, in other embodiments, the connecting seat 411 and the support arm 412 can also be separate components and fixed by welding or other methods.

[0102] Referring to Figures 1, 3, and 8, in one embodiment, the connecting seat 411 and / or the support arm 412 are provided with protruding reinforcing ribs 4111. In this embodiment, both the connecting seat 411 and the support arm 412 are provided with protruding reinforcing ribs 4111, which serve to strengthen the structure and improve the structural strength of the connecting seat 411 and the support arm 412. Of course, reinforcing ribs 4111 may be provided only on the connecting seat 411 or only on the support arm 412. In other embodiments, the connecting seat 411 and / or the support arm 412 may be bent, that is, the connecting seat 411 and the support arm 412 may be bent to strengthen the connecting seat 411 and the support arm 412 and improve their structural strength.

[0103] Referring to Figures 1 to 9, in one embodiment, the housing 11 is provided with a limiting groove 112. The limiting groove 112 is disposed on the side of the housing 11 facing the mounting bracket 41, and is disposed along the extending direction of the support arm 412. The longitudinal cross-sectional shape of the limiting groove 112 is adapted to the longitudinal cross-sectional shape of the support arm 412. The support arm 412 is slidably disposed in the limiting groove 112 to extend into or move out of the housing 11. Through the sliding engagement between the limiting groove 112 and the support arm 412, the movement of the housing 11 can be guided, preventing the housing 11 from shifting relative to the support arm 412 and ensuring the movement stability of the housing 11.

[0104] Optionally, the housing 11 has a mounting cavity (not labeled in the figure), and the limiting groove 112 communicates with the mounting cavity. The housing 11 is hollow, and the limiting groove 112 extends through the housing 11 along the extension direction of the support arm 412 and communicates with the mounting cavity. Of course, in other embodiments, the limiting groove 112 may also be provided in the shell wall of the housing 11.

[0105] Referring to Figures 1 to 9, in one embodiment, the support arm 412 or the housing 11 is provided with a plurality of limiting holes 4121, which are spaced apart along the moving direction of the mounting bracket 41; when the second fastener 42 engages with different limiting holes 4121, the length of the support arm 412 extending out of the housing 11 changes, so as to adjust the distance between the housing 11 and the door.

[0106] Specifically, in this embodiment, the housing 11 is provided with a first fixing hole 111, which is located on the outer wall of the housing 11. The support arm 412 is provided with multiple limiting holes 4121. When the housing 11 slides along the support arm 412 via the limiting groove 112, the corresponding limiting hole 4121 on the support arm 412 is coaxial with the first fixing hole 111. Then, the second fastener 42 is inserted through the first fixing hole 111 and installed in the limiting hole 4121 to fix the support arm 412 to the housing 11 and to adjust the extension length of the support arm 412 so that the clamping mechanism 3 can clamp the unlocking knob. Of course, in other embodiments, multiple limiting holes 4121 can also be provided on the housing 11.

[0107] Referring to Figures 1 to 8, in one embodiment, the support arm 412 is further provided with an adjusting groove 4122. The adjusting groove 4122 extends along the moving direction of the mounting bracket 41 and connects to each limiting hole 4121. The width of the adjusting groove 4122 is smaller than the inner diameter of the limiting hole 4121. When the second fastener 42 is loosened, the mounting bracket 41 can move relative to the housing 11, and the housing 11 can drive the second fastener 42 to move along the adjusting groove 4122. When the second fastener 42 is tightened, the second fastener 42 is limited and installed in the limiting hole 4121, so that the mounting bracket 41 is fixed to the housing 11. Thus, when adjusting the distance between the housing 11 and the door, it is not necessary to completely remove the second fastener 42 from the housing 11; only the second fastener 42 needs to be loosened for easy operation.

[0108] Of course, in other embodiments, as shown in FIG15, the multiple limiting holes 4121 can also be set independently of each other, and the second fastener 42 can be installed in any corresponding limiting hole 4121. That is to say, the multiple limiting holes 4121 are not connected. When adjusting the position of the housing 11, the second fastener 42 is removed. After the housing 11 is adjusted to the required position, the second fastener 42 is installed into the corresponding limiting hole 4121 to fix the housing 11 to the support arm 412.

[0109] Referring to Figures 3 to 9, in one embodiment, the second fastener 42 includes a fastening body 421, a limiting protrusion 422, and a rod portion 423. The fastening body 421 is disposed on one side of the limiting protrusion 422, and the rod portion 423 is disposed on the side of the limiting protrusion 422 away from the fastening body 421. The fastening body 421, the limiting protrusion 422, and the rod portion 423 are sequentially connected along the axial direction of the first fixing hole 111 to form the second fastener 42. When the second fastener 42 is loosened, the limiting protrusion 422 can disengage from the limiting hole 4121, allowing the rod portion 423 to move into the limiting hole 4121 and move along the adjusting groove 4122; when the second fastener 42 is tightened, the rod portion 423 can disengage from the limiting hole 4121, allowing the limiting protrusion 422 to engage with the limiting hole 4121.

[0110] Specifically, when the second fastener 42 is tightened, the fastening body 421 fits against the support arm 412. At this time, the limiting protrusion 422 engages with the limiting hole 4121 to limit the support arm 412 and the housing 11, preventing the housing 11 from moving relative to the support arm 412. When the second fastener 42 is loosened, the limiting protrusion 422 separates from the limiting hole 4121, and the rod 423 moves into the limiting hole 4121. The second fastener 42 can slide along the adjusting groove 4122 via the rod 423 to adjust the position of the housing 11.

[0111] In one implementation, the second fastener 42 is a threaded component, specifically a screw, and the limiting protrusion 422 is a cylindrical or conical protrusion. The hole that mates with the second fastener 42 is a threaded hole. In one embodiment, after the second fastener 42 is loosened, the end face of the second fastener 42 is coplanar with the surface of the housing 11; that is, the second fastener 42 can be loosened until it is flush with the surface of the housing 11, and then the position of the housing 11 can be adjusted to prevent the second fastener 42 from falling off.

[0112] Referring to Figures 1 to 9, in one embodiment, each support arm 412 corresponds to two second fasteners 42. That is, the second adjustment mechanism 4 includes four second fasteners 42, and each support arm 412 is fixed to the housing 11 by two second fasteners 42. Of course, in other embodiments, each support arm 412 may also correspond to one second fastener 42 or other numbers of second fasteners 42.

[0113] Each support arm 412 is provided with two adjusting grooves 4122 and two sets of limiting holes 4121, each set of limiting holes 4121 including multiple limiting holes 4121. Of course, in other embodiments, each support arm 412 may also be provided with other numbers of adjusting grooves 4122 and limiting holes 4121.

[0114] Referring to Figures 3 to 9, in one embodiment, the locking device 10 further includes a fixing bracket 14, which is disposed within the housing 11. A second fastener 42 passes through the housing 11 and the support arm 412 and is fixedly connected to the fixing bracket 14. The fixing bracket 14 supports the control unit 13 and the electric drive assembly 12, thereby supporting and fixing the control unit 13 and the electric drive assembly 12 into the housing 11. Simultaneously, the fixing bracket 14 also supports the support arm 412. After adjusting the position of the housing 11, the second fastener 42 passes through the housing 11 and the support arm 412 and is fixed to the fixing bracket 14 to ensure the reliability of the connection between the housing 11 and the support arm 412.

[0115] Referring to Figures 3 to 9, in one embodiment, the fixed bracket 14 is provided with a guide groove 141, and the limiting groove 112 on the housing 11 communicates with the guide groove 141. The support arm 412 passes through the limiting groove 112 and is slidably installed in the guide groove 141. The limiting groove 112 and the guide groove 141 guide the movement of the housing 11 relative to the support arm 412, ensuring the stability of the movement of the housing 11.

[0116] The fixed bracket 14 is provided with a second fixing hole 142. The second fastener 42 passes through the first fixing hole 111 and the limiting hole 4121 and is installed in the second fixing hole 142 to fix the support arm 412 to the housing 11 and the fixed bracket 14.

[0117] This embodiment also provides an intelligent door lock, including a locking device (not shown) and a lock control device 10 as described above. The locking device includes a lock body (not shown) and an unlocking knob (not shown). The lock body is disposed on the door and can lock the door. The unlocking knob is disposed on the surface of the door and is connected to the lock body. When the unlocking knob is rotated, it can control the lock body to unlock, thereby unlocking the door. When the lock control device 10 is installed on the door, the unlocking knob of the locking device is located in the clamping mechanism 3 of the lock control device 10. The clamping mechanism 3 is used to clamp the unlocking knob of the locking device. The clamping mechanism 3 is driven to rotate by the drive mechanism 2 (specifically, the drive mechanism 2 can be rotated by turning the operating knob 21 in the drive mechanism 2, thereby causing the drive mechanism 2 to drive the clamping mechanism 3 to rotate; or the drive mechanism 2 can be rotated by the electric drive assembly 12 in the host 1, thereby causing the drive mechanism 2 to drive the clamping mechanism 3 to rotate), thereby causing the unlocking knob to rotate, thereby unlocking the locking device.

[0118] Referring to Figures 14 and 15, as another embodiment, the support arm 412 of the mounting bracket 41 and the housing 11 can also be connected in other ways. Specifically, the outer wall of the housing 11 is provided with a mounting groove 113, which extends along the moving direction of the support arm 412 and passes through to the outside of the housing 11 along the line connecting the two support arms 412. The support arm 412 is slidably disposed in the mounting groove 113, and the second fastener 42 passes through the support arm 412 and is fixedly connected to the housing 11. That is, the outer surface of the housing 11 is provided with a notch-shaped mounting groove 113, which is directly exposed to the outside of the housing 11 and communicates with the external environment of the housing 11. When the support arm 412 of the mounting bracket 41 is installed into the mounting groove 113, the support arm 412 is exposed to the outside of the housing 11, and the second fastener 42 can be directly inserted through the support arm 412 and installed into the housing 11 to fix the support arm 412 to the housing 11.

[0119] Referring to Figures 14 and 15, in one embodiment, the thickness of the support arm 412 is less than or equal to the depth of the mounting groove 113. After the support arm 412 is installed into the mounting groove 113, it will not protrude from the outer surface of the housing 11, ensuring the aesthetics of the locking device 10. Of course, in other embodiments, the thickness of the support arm 412 may be slightly greater than the depth of the mounting groove 113.

[0120] Referring to Figures 14 and 15, in one embodiment, the locking device 10 further includes a shielding member 15. The shielding member 15 is connected to the housing 11 and is located on the outside of the support arm 412. The shielding member 15 covers the mounting groove 113 and the support arm 412 located within the mounting groove 113. By covering the support arm 412 and the mounting groove 113 with the shielding member 15, neither the support arm 412 nor the mounting groove 113 is exposed to the outside of the housing 11, thereby preventing debris from entering the mounting groove 113 and contacting the support arm 412, thus affecting the normal sliding of the support arm 412, and ensuring the aesthetics of the locking device 10. Optionally, the shielding member 15 is a cover plate; of course, the shielding member 15 can also be a sticker or other components that can serve a shielding function.

[0121] Referring to Figures 14 and 15, in one embodiment, a first mating part 114 is provided on the housing 11 at a position corresponding to the mounting groove 113, and a second mating part 151 is provided on the shielding member 15 at a position corresponding to the first mating part 114. The first mating part 114 can engage with the second mating part 151 to fix the shielding member 15 to the housing 11. In this embodiment, the first mating part 114 is a slot, and the second mating part 151 is a hook. When the shielding member 15 is installed on the housing 11, the hook can extend into the slot and engage in the slot to fix the shielding member 15 to the housing 11. Of course, in other embodiments, the first mating part 114 can be a hook, the second mating part 151 can be a slot, or both the first mating part 114 and the second mating part 151 can be hooks.

[0122] Referring to Figures 14 and 15, in one embodiment, the shielding member 15 is coplanar with the surface of the housing 11. That is, after the shielding member 15 is installed on the housing 11, the outer surface of the shielding member 15 is flush with the outer surface of the housing 11 to ensure the aesthetics of the locking device 10. Of course, in other embodiments, the shielding member 15 may also protrude from the outer surface of the housing 11.

[0123] Referring to Figures 16 to 19, as another embodiment, the second adjustment mechanism 4 can also have other structural forms, and the second adjustment mechanism 4 and the housing 11 can also adopt other connection methods. Specifically, the second adjustment mechanism 4 includes a shim block 43, which is connected to the housing 11 and is used to install onto the door; the shim block 43 can increase the distance between the housing 11 and the door. The shim block 43 is a block structure of fixed thickness, which is connected to the surface of the housing 11 facing the door and is installed on the door, thereby increasing the distance between the housing 11 and the door. It can be understood that if the height of the unlocking knob is large, by adding the shim block 43 to the housing 11, the clamping mechanism 3 can be positioned directly opposite the unlocking knob, making it easier for the clamping mechanism 3 to clamp the unlocking knob.

[0124] Referring to Figures 16 to 19, in one embodiment, the second adjustment mechanism 4 further includes a third fastener 44. The shim block 43 is fixed to the housing 11 by the third fastener 44 to achieve a fixed connection between the shim block 43 and the housing 11. The shim block 43 can be fixed to the door body by means of adhesive, screws, or other methods.

[0125] Referring to Figures 16 to 19, in one embodiment, multiple shims 43 can be stacked to form different heights to accommodate unlocking knobs of varying heights. Depending on the height of the unlocking knob, a corresponding number of shims 43 are placed between the housing 11 and the door body so that the clamping mechanism 3 can be directly facing the unlocking knob, facilitating its clamping. Optionally, the number of shims 43 can be at least two. Of course, the number of shims 43 can also be one.

[0126] Referring to Figures 16 to 19, in one embodiment, when there are at least two shims 43, one shim 43 is used to install onto the door body, and the other shim 43 is fixed to the housing 11 by a third fastener 44; each shim 43 has a first snap-fit ​​portion 431 on one side and a second snap-fit ​​portion 432 on the other side, and adjacent shims 43 are connected by snap-fitting the first snap-fit ​​portion 431 and the second snap-fit ​​portion 432. In another embodiment, when there is one shim 43, the shim 43 is fixed to the housing 11 by the third fastener 44, and the shim 43 is also used to install onto the door body, that is, both sides of the shim 43 are connected to the housing 11 and the door body respectively.

[0127] Specifically, when there are at least two shims 43, the shim 43 closest to the housing 11 is fixed to the housing 11 by the third fastener 44, and the shim 43 closest to the door is fixedly installed to the door; each pair of adjacent shims 43 are connected by a first snap-fit ​​part 431 and a second snap-fit ​​part 432.

[0128] Referring to Figures 16 to 19, in one embodiment, the first engaging portion 431 and the second engaging portion 432 are engaging protrusions, and are staggered along the height direction. This allows the first engaging portion 431 and the second engaging portion 432 to engage and connect adjacent raised blocks 43 when they are assembled. Alternatively, in other embodiments, both the first engaging portion 431 and the second engaging portion 432 can be snap-fitted, or one can be a snap-fit ​​and the other a slot, with the first engaging portion 431 and the second engaging portion 432 positioned opposite each other. When adjacent raised blocks 43 are assembled, the connection between them can also be achieved through the engaging connection of the first engaging portion 431 and the second engaging portion 432.

[0129] Referring to Figures 16 to 19, in one embodiment, each shim block 43 has multiple first latching portions 431, and the number of second latching portions 432 is the same as the number of first latching portions 431. In this way, the reliability of the connection between the shims 43 is ensured by the cooperation of multiple first latching portions 431 with corresponding second latching portions 432.

[0130] Referring to Figures 20 to 29, as another embodiment, the clamping mechanism 3 can also have other structures, and the first adjusting mechanism 33 can also adopt other structures and working principles. Specifically, the clamping mechanism 3 also includes a mounting base 31, at least two clamping members 32 slidably connected to the mounting base 31, and a first adjusting mechanism 33 disposed on the mounting base 31. The mounting base 31 is a hollow shell structure, including a bottom shell 31C, a side cylinder 31D, and a top cover 31E. The side cylinder 31D is disposed around the bottom shell 31C, and the side cylinder 31D and the bottom shell 31C enclose a receiving cavity 310. The top cover 31E is detachably connected to the side cylinder 31D, for example, the top cover 31E and the side cylinder 31D are connected by bolts or snaps, etc., and the top cover 31E is used to cover the receiving cavity 310.

[0131] The top cover 31E has positioning holes 315 and connecting holes 316, and there can be multiple positioning holes 315 and connecting holes 316. In addition to the interconnected operating knob 21 and knob shaft 22, the drive mechanism 2 also includes a transmission seat 23. The transmission seat 23 is located on the side of the main unit 1 away from the operating knob 21, and the transmission seat 23 is located between the clamping mechanism 3 and the main unit 1. One end of the knob shaft 22 is inserted into the main unit 1, passes through the main unit 1, and is fixedly connected to the transmission seat 23 (the knob shaft 22 and the transmission seat 23 can be fixedly connected by screws). The transmission base 23 has a first positioning post 231 and a first fixing part 232 on the side facing the clamping mechanism 3. The first positioning post 231 is inserted into the positioning hole 315. By cooperating with the positioning hole 315, the clamping mechanism 3 can be positioned to prevent the clamping mechanism 3 from rotating or sliding relative to the driving mechanism 2. The first fixing part 232 is inserted into the connecting hole 316 and is detachably connected to the mounting base 31. For example, the first fixing part 232 can be snapped to the mounting base 31, thus realizing the fixed connection between the mounting base 31 and the driving mechanism 2, so that the driving mechanism 2 can drive the clamping mechanism 3 to rotate when it rotates.

[0132] Referring to Figures 20 to 29, in one embodiment, each clamping member 32 includes a clamping portion 321 and a sliding portion 322 connected to the clamping portion 321. The clamping portion 321 is located on the side of the mounting base 31 away from the main unit 1, that is, the clamping portion 321 is located outside the mounting base 31. In this embodiment, there are two clamping members 32, and the clamping portions 321 of the two clamping members 32 are spaced apart along the sliding direction of the clamping member 32. The mounting base 31 is provided with two guide portions 311, which can be provided on the bottom shell 31C. The two guide portions 311 extend in a straight line and are arranged parallel to each other. The sliding portions 322 of the two clamping members 32 slide and engage with different guide portions 311 respectively, and the clamping portion 321 is located outside the receiving cavity 310. Each clamping member 32 also includes a fixing block 326, which is fixedly connected to the sliding part 322, for example, by bolts or snap-fit ​​connections. The mounting base 31 abuts against the clamping part 321 and the fixing block 326. Specifically, the fixing block 326 can abut against the bottom shell 31C of the mounting base 31, so that the bottom shell 31C is abutted between the fixing block 326 and the clamping part 321. It can be understood that the fixing block 326 and the clamping part 321 clamp the bottom shell 31C, thus effectively preventing the sliding part 322 and the entire clamping member 32 from falling off the mounting base 31.

[0133] Specifically, in this embodiment, the guide portion 311 is a groove structure, including a first groove 3111 and a second groove 3112. The middle area of ​​the bottom wall surface of the first groove 3111 is recessed to form the second groove 3112, which connects to the receiving cavity 310. The edge area of ​​the bottom wall surface of the first groove 3111 is not recessed, thus forming a stepped surface 3113, which surrounds the second groove 3112. The sliding portion 322 includes a sliding body 3221 and a lug 3222. The clamping portion 321 can be connected to the sliding body 3221 and / or the lug 3222. There can be two lugs 3222, which protrude from opposite sides of the sliding body 3221. The lugs 3222 slide in engagement with the first groove 3111 and abut against the stepped surface 3113. The sliding body 3221 slides in engagement with the second groove 3112. The fixing block 326 is located inside the accommodating cavity 310 and connected to the sliding part 322, and the fixing block 326 is located on the side of the second groove 3112 away from the first groove 3111. Since the fixing block 326 abuts against the inner side of the bottom shell 31C and the lug 3222 abuts against the stepped surface 3113, the mounting seat 31 is clamped between the lug 3222 and the fixing block 326, thereby effectively preventing the sliding body 3221 from falling out of the second groove 3112 and realizing the sliding engagement relationship between the sliding part 322 and the guide part 311.

[0134] Referring to Figures 20 to 29, in one embodiment, the first adjusting mechanism 33 includes a gear 332, which is rotatably connected to the mounting base 31; each clamping member 32 is provided with a rack 32B, and the gear 332 meshes with the rack 32B on each clamping member 32; when the gear 332 rotates, the gear 332 drives the rack 32B on each clamping member 32 to move, so that at least two clamping members 32 move towards each other or away from each other.

[0135] Specifically, in this embodiment, gear 332 is rotatably connected to the base shell 31C, and rack 32B is disposed on the sliding body 3221 of sliding portion 322. Racks 32B on the two clamping members 32 are respectively disposed on both sides of gear 332, and gear 332 simultaneously meshes with the racks 32B on both clamping members 32. When gear 332 rotates, the racks 32B of the two clamping members 32 move in opposite directions, thus the sliding directions of the sliding portions 322 of the two clamping members 32 are opposite, resulting in opposite sliding directions of the two clamping portions 321. This allows the two clamping portions 321 to move towards or away from each other to change the distance between them.

[0136] In this embodiment, both gear 332 and rack 32B are located within the accommodating cavity 310. This allows the mounting base 31 to protect gear 332 and rack 32B, preventing external interference with their operation. Gear 332 and rack 32B can be made of metal, which improves their structural strength and prevents deformation and failure of the gear teeth.

[0137] Referring to Figures 20 to 29, in one embodiment, the first adjustment mechanism 33 further includes an adjustment member 333 disposed on the mounting base 31. The adjustment member 333 is used to drive one of the clamping members 32 to move, and drives the other clamping members 32 to move through the gear 332.

[0138] Specifically, in this embodiment, the adjusting member 333 is connected to one of the clamping members 32. The adjusting member 333 drives the movement of one of the clamping members 32. When the clamping member 32 moves, it drives the gear 332 to rotate via the rack 32B. The rotating gear 332 then drives the other clamping member 32 to move in the opposite direction via the rack 32B. In short, the adjusting member 333 drives the rack 32B of one of the clamping members 32 to move. The movement of the rack 32B drives the gear 332 to rotate, thereby synchronously driving the rack 32B of the other clamping member 32 to move, ultimately achieving the opposite or opposite movement of the two clamping members 32.

[0139] In other embodiments, the adjusting member 333 can also be used to directly drive the gear 332 to rotate, so that all the clamping members 32 can move together through the gear 332.

[0140] Referring to Figures 20 to 29, in one embodiment, the adjusting member 333 includes an adjusting bolt, which is rotatably mounted on the mounting base 31. The adjusting bolt is threadedly connected to one of the clamping members 32, and the adjusting bolt can drive the clamping member 32 to move when it rotates.

[0141] Specifically, in this embodiment, the adjusting bolt is rotatably mounted on the side cylinder 31D of the mounting base 31. The axial direction of the adjusting bolt is parallel to the movement direction of the clamping part 321, that is, the axial direction of the adjusting bolt is parallel to the extension direction of the guide part 311. The adjusting bolt is threadedly connected to one of the clamping members 32. The adjusting bolt can be threadedly connected to the fixing block 326 or to the sliding part 322. The mounting base 31 can axially limit the adjusting bolt, that is, during the rotation of the adjusting bolt on the mounting base 31, the adjusting bolt cannot slide relative to the mounting base 31 along its own axial direction. This makes the adjusting bolt function similarly to a lead screw. When the adjusting bolt rotates, the rotation of the adjusting bolt will be converted into the sliding of the clamping member 32.

[0142] Understandably, due to the self-locking capability of the threads, once the adjusting bolt drives the clamping member 32 to move to the designated position, the clamping member 32 cannot slide off from the designated position. This improves the stability and reliability of the clamping portions 321 of the two clamping members 32 in holding the unlocking knob. In other embodiments, the adjusting member 333 can also be a cylinder or a cam, as long as it can drive one of the clamping members 32 to slide.

[0143] Referring to Figures 20 to 29, in one embodiment, the mounting base 31 is provided with a first limiting part, and the adjusting bolt is provided with a second limiting part. The first limiting part and the second limiting part cooperate to restrict the axial movement of the adjusting bolt on the mounting base 31, thereby ensuring that the rotation of the adjusting bolt can be smoothly converted into the linear movement of the clamping member 32.

[0144] Specifically, in this embodiment, the first limiting part includes a protrusion 317, and the second limiting part includes a limiting groove 3330. The limiting groove 3330 is disposed around the central axis of the adjusting bolt on the outer surface of the adjusting bolt. The protrusion 317 is located within the limiting groove 3330, thereby limiting the axial movement of the adjusting bolt and ensuring that the adjusting bolt can rotate normally.

[0145] In another embodiment, the first limiting part includes a limiting groove 3330, and the second limiting part includes a protrusion 317. The protrusion 317 is disposed around the central axis of the adjusting bolt on the outer surface of the adjusting bolt, and is located within the limiting groove 3330. It can be understood that the protrusion 317 abuts against two inner sidewalls of the limiting groove 3330 that are spaced apart along the axial direction of the adjusting bolt, thereby achieving axial limiting of the adjusting bolt.

[0146] Referring to Figures 20 to 29, in one embodiment, the side cylinder 31D of the mounting base 31 has a first hole 313 and a second hole 314. The first hole 313 and the second hole 314 are coaxially arranged. The diameter of the second hole 314 is smaller than that of the first hole 313. The second hole 314 is closer to the receiving cavity 310 than the first hole 313. The second hole 314 is directly connected to the receiving cavity 310, thus forming a stepped hole between the first hole 313 and the second hole 314. The adjusting bolt includes an adjusting rod 3331 and an adjusting cap 3332. The cross-section of the adjusting cap 3332 is larger than that of the adjusting rod 3331. The adjusting cap 3332 is rotatably engaged with the first hole 313, and the adjusting cap 3332 abuts against the bottom wall of the first hole 313 along the axial direction of the adjusting bolt, preventing the adjusting cap 3332 from entering the second hole 314. This effectively prevents the entire adjusting bolt from sliding relative to the mounting base 31 along its own axial direction. The adjusting rod 3331 is rotatably engaged with the second hole 314, and the adjusting rod 3331 passes through the receiving cavity 310 and is threadedly connected to the fixing block 326 of the clamping member 32. When the adjusting cap 3332 is driven to rotate counterclockwise or clockwise by a tool (e.g., a screwdriver), the entire adjusting bolt will rotate counterclockwise or clockwise, thus driving the clamping member 32 to slide back and forth.

[0147] Referring to Figures 20 to 29, in one embodiment, the adjusting rod 3331 includes a first rod 3331A and a second rod 3331B. The first rod 3331A and the second rod 3331B are coaxially arranged. The first rod 3331A is connected between the second rod 3331B and the adjusting cap 3332. The cross-section of the first rod 3331A is smaller than the cross-section of the second rod 3331B, so that the adjusting rod 3331 is similar to a stepped shaft. Therefore, the end of the second rod 3331B has a limiting surface 3331C. The limiting surface 3331C is arranged around the first rod 3331A. Understandably, the gap between the adjusting cap 3332 and the limiting surface 3331C forms the aforementioned limiting groove 3330.

[0148] Mounting base 31 includes the aforementioned protrusion 317, which is located within the accommodating cavity 310 and disposed on the bottom shell 31C and / or top cover 31E. For example, both the bottom shell 31C and the top cover 31E are provided with protrusions 317. The limiting surface 3331C and the adjusting cap 3332 abut against the protrusion 317 along the axial direction of the adjusting rod 3331. Obviously, the limiting surface 3331C and the adjusting cap 3332 are spaced apart along the axial direction of the adjusting bolt. Therefore, based on the adjusting cap 3332 abutting against the bottom wall surface of the first hole 313 along the axial direction of the adjusting bolt, the limiting surface 3331C abutting against the protrusion 317 along the axial direction of the adjusting bolt, thus further improving the limiting function of the mounting base 31 on the adjusting bolt, preventing the adjusting bolt from sliding relative to the mounting base 31 along its own axial direction, improving the stability and reliability of the driving of the adjusting member 333 on the clamping member 32, and ensuring that the clamping part 321 can effectively clamp the unlocking knob.

[0149] Referring to Figures 30 to 37, in another embodiment, the locking device 10 further includes a third adjusting mechanism 5. The third adjusting mechanism 5 is connected between the mounting base 31 of the clamping mechanism 3 and the drive mechanism 2; that is, one side of the third adjusting mechanism 5 is connected to the mounting base 31, and the other side is connected to the drive mechanism 2. The drive mechanism 2 can drive the clamping mechanism 3 to rotate via the third adjusting mechanism 5. Specifically, when the drive mechanism 2 rotates relative to the host 1, both the third adjusting mechanism 5 and the clamping mechanism 3 can rotate together with the drive mechanism 2. The third adjusting mechanism 5 can move relative to the host 1, so that the entire clamping mechanism 3 can move relative to the host 1 via the third adjusting mechanism 5.

[0150] Specifically, due to differences in usage habits and technical standards, the unlocking knobs of traditional door locks in different countries and regions vary significantly in style. This makes it difficult for the clamping mechanism on the lock control device to align with the unlocking knob during installation, thus affecting the accuracy of the fit between the lock control device and the unlocking knob. This embodiment addresses this by incorporating a third adjustment mechanism 5. After the main unit 1 is fixed to the door, the clamping mechanism 3 can move relative to the main unit 1 via the third adjustment mechanism 5, thereby accurately aligning the clamping mechanism 3 with the unlocking knob of the traditional door lock and improving the accuracy of the fit between the clamping mechanism 3 and the unlocking knob.

[0151] Referring to Figures 30 to 37, in one embodiment, the third adjustment mechanism 5 includes a fixed base 51 and an adjustment component 52. The fixed base 51 is fixedly connected to the drive mechanism 2, for example, by bolts or snap-fit ​​connections. The adjustment component 52 is mounted on the fixed base 51 and is fixedly connected to the mounting base 31 of the clamping mechanism 3. The adjustment component 52 can slide relative to the fixed base 51 in multiple sliding directions, all of which are perpendicular to the axis around which the drive mechanism 2 rotates. For example, the adjustment component 52 can slide relative to the fixed base 51 along multiple straight lines extending in different directions; or, for another example, the adjustment component 52 can slide relative to the fixed base 51 along multiple curves extending in different directions; or, for yet another example, the adjustment component 52 can slide relative to the fixed base 51 along multiple curves and multiple straight lines extending in different directions.

[0152] If the structure of the adjusting component 52 and the fixed seat 51 sliding in a single direction is adopted, the movement direction of the clamping mechanism 3 relative to the fixed seat 51 will be limited. That is, the position adjustment range of the third adjusting mechanism 5 on the clamping mechanism 3 will be limited, and the clamping mechanism 3 will be difficult to move to the specified position and accurately align with the unlocking knob of the traditional door lock.

[0153] In this embodiment, the adjustment component 52 can slide relative to the fixed seat 51 in multiple sliding directions, so that the sliding direction of the clamping mechanism 3 relative to the fixed seat 51 has a variety of different choices. That is, the position adjustment range of the clamping mechanism 3 by the third adjustment mechanism 5 is greatly improved. After the host 1 is fixed on the door, the clamping mechanism 3 can be accurately moved to the designated position and accurately aligned with the unlocking knob of the traditional door lock through the third adjustment mechanism 5, thereby improving the cooperation accuracy between the clamping mechanism 3 and the unlocking knob, so that the clamping mechanism 3 can better drive the unlocking knob to rotate.

[0154] Referring to Figures 30 to 37, in one embodiment, the multiple sliding directions of the adjusting component 52 include a first direction (not labeled) and a second direction (not labeled) arranged at an angle, both of which are perpendicular to the axis around which the driving mechanism 2 rotates. The adjusting component 52 includes a first sliding member 521 and a second sliding member 522. The first sliding member 521 is slidably connected to the fixed base 51 along a first curve 501, and the second sliding member 522 is slidably connected to the first sliding member 521 along a second curve 502. The first curve 501 extends substantially in the first direction, and the second curve 502 extends substantially in the second direction. The mounting base 31 of the clamping mechanism 3 is fixedly connected to the second sliding member 522. The first curve 501 extending in the first direction has multiple tangents, so the first slider 521 can move relative to the fixed seat 51 in multiple different directions. The second curve 502 extending in the second direction also has multiple tangents, so the second slider 522 can move relative to the first slider 521 in multiple different directions. Ultimately, the clamping mechanism 3 can follow the second slider 522 to move relative to the fixed seat 51 in multiple directions. This allows the clamping mechanism 3 to have multiple different sliding directions relative to the fixed seat 51. That is, the third adjustment mechanism 5 greatly improves the position adjustment range of the clamping mechanism 3, so that the clamping mechanism 3 can move accurately to the designated position and be accurately aligned with the unlocking knob.

[0155] In other embodiments, the multiple sliding directions of the adjusting component 52 include a first direction and a second direction arranged at an angle, both of which can be perpendicular to the axis around which the driving mechanism 2 rotates. The adjusting component 52 includes a first slider 521 and a second slider 522. The first slider 521 can be slidably connected to the fixed base 51 along a first straight line, and the second slider 522 can be slidably connected to the first slider 521 along a second straight line. The first straight line extends in the first direction, and the second straight line extends in the second direction. The first straight line and the second straight line can be perpendicular or not perpendicular, that is, the first straight line and the second straight line can form a right angle or an acute angle.

[0156] Referring to Figures 30 to 37, in one embodiment, the third adjustment mechanism 5 further includes a first guide member 53, one of the first sliding member 521 and the fixed base 51 is fixedly connected to the first guide member 53, and the other has a first slide groove 54 extending along the first curve 501; the first guide member 53 and the first slide groove 54 are slidably engaged so that the first sliding member 521 is slidably connected to the fixed base 51 along the first curve 501.

[0157] In this embodiment, the first groove 54 is formed on the fixed base 51, and the first guide member 53 is fixedly connected to the first sliding member 521. The first guide member 53 extends into the first groove 54 and can slide along the first groove 54. In another embodiment, the first groove 54 may also be formed on the first sliding member 521, and the first guide member 53 may be fixedly connected to the fixed base 51.

[0158] In this embodiment, the first guide member 53 includes a first guide rod 531 and a first guide cap 532 connected together. The first guide rod 531 and the first guide cap 532 are coaxially arranged, and the cross-section of the first guide cap 532 is larger than the cross-section of the first guide rod 531. A first groove 54 is formed on the fixed base 51 and extends through the fixed base 51 along the thickness direction. The first groove 54 includes a third groove 541 and a fourth groove 542. Both the third groove 541 and the fourth groove 542 extend along the first curve 501. The fourth groove 542 is formed in the middle area of ​​the bottom wall surface of the third groove 541, that is, the fourth groove 542 can be formed by a recess in the middle area of ​​the bottom wall surface of the third groove 541. The edge portion of the bottom wall surface of the third groove 541 forms a first stepped surface 543 because it is not recessed. The first stepped surface 543 surrounds the fourth groove 542. Obviously, the groove width of the fourth groove 542 is smaller than the groove width of the third groove 541. The fourth groove 542 is closer to the first sliding member 521 than the third groove 541. The first guide rod 531 slides through the fourth groove 542 and is fixedly connected to the first sliding member 521. The first guide cap 532 slides with the third groove 541 and is located outside the fourth groove 542, abutting against the first stepped surface 543. Because the first guide rod 531 is fixedly connected to the first sliding member 521 and the first guide cap 532 abuts against the first stepped surface 543, the fixing seat 51 is sandwiched between the first sliding member 521 and the first guide cap 532, effectively preventing the first sliding member 521 from detaching from the fixing seat 51. At the same time, the first guide rod 531 can slide in the fourth groove 542, and the first guide cap 532 can slide in the third groove 541, thereby ensuring that the first sliding member 521 slides relative to the fixing seat 51 along the extension direction of the first groove 54.

[0159] In this embodiment, the first sliding member 521 includes a first sliding body 521A and a first boss 521B. The first boss 521B protrudes from the surface of the first sliding body 521A facing the fixed seat 51. The first boss 521B slides in conjunction with the fourth groove 542, and the first guide rod 531 is inserted into the first boss 521B and fixedly connected to the first boss 521B. For example, the first guide member 53 can be a bolt, the first guide rod 531 can be the screw of the bolt, and the first guide rod 531 is threadedly connected to the first boss 521B. By sliding the first boss 521B into the fourth groove 542, the first boss 521B contacts the inner wall surface of the fourth groove 542. This effectively prevents the threaded first guide 53 from contacting the inner wall surface of the fourth groove 542, thereby reducing the frictional resistance of the first sliding member 521 relative to the fixed seat 51 during sliding. It also reduces the vibration generated by the first sliding member 521 during sliding, thus improving the sliding accuracy of the first sliding member 521 and the position adjustment accuracy of the third adjusting mechanism 5 on the clamping mechanism 3. In other embodiments, the first guide 53 can also be a rivet, etc.

[0160] Referring to Figures 30 to 37, in one embodiment, the third adjustment mechanism 5 further includes a second guide member 55, one of the second sliding member 522 and the first sliding member 521 is fixedly connected to the second guide member 55, and the other has a second sliding groove 56 extending along the second curve 502; the second guide member 55 and the second sliding groove 56 are slidably engaged so that the second sliding member 522 is slidably connected to the first sliding member 521 along the second curve 502.

[0161] In this embodiment, the second groove 56 is formed on the first slider 521, and the second guide 55 is fixedly connected to the second slider 522. The second guide 55 extends into the second groove 56 and can slide along the second groove 56. In another embodiment, the second groove 56 may also be formed on the second slider 522, and the second guide 55 may be fixedly connected to the first slider 521.

[0162] In this embodiment, the second guide member 55 includes a second guide rod 551 and a second guide cap 552 connected together. The second guide rod 551 and the second guide cap 552 are coaxially arranged, and the cross-section of the second guide cap 552 is larger than the cross-section of the second guide rod 551. A second groove 56 is formed on the first sliding member 521. The second groove 56 penetrates the first sliding member 521 along the thickness direction. The second groove 56 includes a fifth groove 561 and a sixth groove 562. Both the fifth groove 561 and the sixth groove 562 extend along the second curve 502. The sixth groove 562 is formed in the middle area of ​​the bottom wall surface of the fifth groove 561. That is, the sixth groove 562 can be formed by a recess in the middle area of ​​the bottom wall surface of the fifth groove 561. The edge portion of the bottom wall surface of the fifth groove 561 forms a second stepped surface 563 because it is not recessed. The second stepped surface 563 surrounds the sixth groove 562. Obviously, the groove width of the sixth groove 562 is smaller than the groove width of the fifth groove 561. The fifth groove 561 is closer to the fixed base 51 than the sixth groove 562. The second guide rod 551 slides through the sixth groove 562 and is fixedly connected to the second sliding member 522. The second guide cap 552 slides with the fifth groove 561 and is located outside the sixth groove 562, abutting against the second step surface 563. Because the second guide rod 551 is fixedly connected to the second sliding member 522 and the second guide cap 552 abuts against the second step surface 563, the first sliding member 521 is sandwiched between the second sliding member 522 and the second guide cap 552, effectively preventing the second sliding member 522 from detaching from the first sliding member 521. At the same time, the second guide rod 551 can slide in the sixth groove 562, and the second guide cap 552 can slide in the fifth groove 561, thereby ensuring that the second sliding member 522 slides relative to the first sliding member 521 along the extension direction of the second groove 56.

[0163] In this embodiment, the second sliding member 522 includes a second sliding body 522A and a second boss 522B. The second boss 522B protrudes from the surface of the second sliding body 522A facing the first sliding member 521. The second boss 522B is slidably engaged with the sixth groove 562. The second guide rod 551 is inserted into the second boss 522B and is fixedly connected to the second boss 522B. For example, the second guide member 55 can be a bolt, the second guide rod 551 can be the threaded part of the bolt, and the second guide rod 551 is connected to the second boss 522B by a thread. By sliding the second boss 522B into the sixth groove 562, the second boss 522B contacts the inner wall surface of the sixth groove 562. This effectively prevents the threaded second guide 55 from contacting the inner wall surface of the sixth groove 562, thereby reducing the frictional resistance of the second sliding member 522 relative to the first sliding member 521 during sliding. It also reduces the vibration generated by the second sliding member 522 during sliding, thus improving the sliding accuracy of the second sliding member 522 and the position adjustment accuracy of the third adjusting mechanism 5 on the clamping mechanism 3. In other embodiments, the second guide 55 can also be a rivet, etc.

[0164] Referring to Figures 30 to 37, in one embodiment, the first slide groove 54 is formed on the fixed base 51, and the second slide groove 56 is formed on the first sliding member 521. The second slide groove 56 has an orthographic projection on the fixed base 51. The orthographic projection of the second slide groove 56 and the first slide groove 54 are spaced apart, so that there is no intersection or overlap between the projection of the second slide groove 56 and the first slide groove 54. This effectively prevents the first sliding member 521 and the second sliding member 522 from interfering with each other during the sliding process along different curves, and improves the smoothness of the third adjustment mechanism 5 in the position adjustment process of the clamping mechanism 3.

[0165] In this embodiment, there are two first slide grooves 54 and two second slide grooves 56, so the number of orthographic projections of the second slide grooves 56 on the fixed base 51 is also two. This reduces the shaking generated by the first sliding member 521 and the second sliding member 522 during sliding, reduces jamming, and improves the sliding accuracy and smoothness. At the same time, the orthographic projections of the two first slide grooves 54 and the two second slide grooves 56 are spaced apart along the rotation direction of the drive mechanism 2, and there is a first slide groove 54 between the orthographic projections of two adjacent second slide grooves 56 in the rotation direction of the drive mechanism 2, thereby further reducing the interference generated by the first sliding member 521 and the second sliding member 522 during sliding, thereby improving the smoothness of the third adjustment mechanism 5 in adjusting the position of the clamping mechanism 3.

[0166] Referring to Figures 30 to 37, in one embodiment, with reference to the extension direction of the rotation axis of the drive mechanism 2, the fixed base 51, the first sliding member 521, and the second sliding member 522 are stacked on top of each other. This can reasonably reduce the space occupied by the third adjustment mechanism 5, thereby improving the structural compactness of the third adjustment mechanism 5 and the entire locking device 10, thus realizing the miniaturization design of the locking device 10.

[0167] Referring to Figures 30 to 37, in one embodiment, a limiting groove 115 is recessed on the outer surface of the housing 11 of the main unit 1. A first sliding member 521 and a second sliding member 522 are rotatably disposed within the limiting groove 115. At least a portion of the peripheral surfaces of both the first sliding member 521 and the second sliding member 522 can maintain a distance from the inner wall of the limiting groove 115, allowing the first sliding member 521 and the second sliding member 522 to slide within the limiting groove 115. It is understood that when a portion of the peripheral surface of the first sliding member 521 or the second sliding member 522 contacts the inner wall of the limiting groove 115, the first sliding member 521 or the second sliding member 522 will stop sliding. By providing the limiting groove 115, the maximum sliding stroke of the first sliding member 521 or the second sliding member 522 can be limited, preventing the third adjusting mechanism 5 from adjusting the position of the clamping mechanism 3 too much.

[0168] Referring to Figures 30 to 37, in one embodiment, the drive mechanism 2 includes an operating knob 21 and a knob shaft 22 connected to each other, as well as a transmission component 24, which can be a gear or the like. The transmission component 24 is located inside the housing 11 of the main unit 1. One end of the knob shaft 22 is inserted into the main unit 1 and fixedly connected to the transmission component 24. The transmission component 24 is fixedly connected to the fixed base 51. At the same time, the electric drive assembly inside the main unit 1 is connected to the transmission component 24, thereby enabling both the operating knob 21 and the electric drive assembly to drive the transmission component 24 and the fixed base 51 to rotate, which in turn drives the clamping mechanism 3 to rotate. In this embodiment, a convex shaft 511 is provided on the side of the fixed base 51 facing the transmission component 24. The convex shaft 511 is fixedly connected to the transmission component 24 by bolts 500 to achieve a fixed connection between the fixed base 51 and the transmission component 24.

[0169] Referring to Figures 30 to 37, in one embodiment, the second sliding member 522 has a second positioning post 5221 and a second fixing part 5222 on the side facing the clamping mechanism 3. The second positioning post 5221 is inserted into the clamping mechanism 3, thereby achieving the positioning of the clamping mechanism 3 and improving the installation efficiency and accuracy of the clamping mechanism 3. The second fixing part 5222 can be detachably connected to the clamping mechanism 3, for example, by a snap-fit ​​connection, thereby achieving a fixed connection between the clamping mechanism 3 and the second sliding member 522. The assembly relationship between the second positioning post 5221 and the second fixing part 5222 and the clamping mechanism 3 can be referred to the assembly relationship between the first positioning post and the first fixing part and the clamping mechanism 3 described above, and will not be repeated here.

[0170] Referring to Figures 38 to 43, as another embodiment, the third adjustment mechanism 5 can also adopt other structures and working principles. Specifically, the third adjustment mechanism 5 includes a fixed base 51, a movable member 57, and an elastic member 58. The fixed base 51 is fixedly connected to the drive mechanism 2, the movable member 57 abuts against the fixed base 51, and the movable member 57 is fixedly connected to the mounting base 31 of the clamping mechanism 3. The elastic member 58 is disposed between the fixed base 51 and the movable member 57, with both ends of the elastic member 58 fixedly connected to the fixed base 51 and the movable member 57, respectively. The elastic member 58 can twist to drive the movable member 57 to move relative to the fixed base 51. The twisting motion of the elastic member 58 includes rotation and oscillation. The end of the elastic member 58 connected to the movable member 57 can rotate in the circumferential direction of a circle and oscillate in the radial direction of the circle. Through the twisting of the elastic member 58, the movable member 57 and the clamping mechanism 3 can be driven to achieve rotation or oscillation.

[0171] This embodiment utilizes the torsion of the elastic element 58 to drive the movable element 57 to move relative to the fixed seat 51. By controlling the torsion amplitude of the elastic element 58, the rotation or swing distance of the movable element 57 can be well controlled, so that the movable element 57 can drive the clamping mechanism 3 to move relative to the fixed seat 51 to multiple different positions as required. This greatly improves the position adjustment range of the clamping mechanism 3 by the third adjustment mechanism 5, ensuring that the clamping mechanism 3 moves accurately to the designated position and is accurately aligned with the unlocking knob of the traditional door lock, thereby improving the matching accuracy between the lock control device 10 and the unlocking knob.

[0172] Referring to Figures 38 to 43, in one embodiment, the elastic member 58 includes a torsion portion 581 and a connecting portion 582. One end of the torsion portion 581 is connected to the fixed base 51, and the other end of the torsion portion 581 is connected to the connecting portion 582. The torsion portion 581 is cylindrical or conical, and the connecting portion 582 protrudes radially from the torsion portion 581. The connecting portion 582 is fixedly connected to the movable member 57. Therefore, when the movable member 57 needs to move, the fixed connection between the connecting portion 582 and the movable member 57 allows the torsion portion 581 to twist, effectively driving the movable member 57 to move relative to the fixed base 51.

[0173] Referring to Figures 38 to 43, in one embodiment, the torsion portion 581 is conical, and along its axial direction from the fixed base 51 to the movable member 57, the cross-section of the torsion portion 581 gradually increases. This arrangement places the end of the torsion portion 581 with a larger cross-section closer to the movable member 57, while the end with a smaller cross-section is closer to the fixed base 51. This facilitates torsion of the elastic member 58, ensuring smooth movement of the movable member 57 relative to the fixed base 51. In other embodiments, the torsion portion 581 can be cylindrical, meaning its cross-section remains constant.

[0174] Referring to Figures 38 to 43, in one embodiment, the third adjusting mechanism 5 further includes a fourth fastener 591. The fourth fastener 591 can be a screw, bolt, rivet, etc., and is detachably connected to the movable member 57, for example, the fourth fastener 591 can be threadedly connected to the movable member 57. The connecting portion 582 of the elastic member 58 is sandwiched between the fourth fastener 591 and the movable member 57, thus achieving a fixed connection between the connecting portion 582 and the movable member 57. When the fourth fastener 591 is a screw, the cap of the fourth fastener 591 can directly apply a resisting force to the connecting portion 582.

[0175] Referring to Figures 38 to 43, in one embodiment, the third adjustment mechanism 5 further includes a pressure block 592, which directly abuts against the connecting part 582. The cap of the fourth fastener 591 abuts against the pressure block 592, that is, the cap of the fourth fastener 591 presses against the connecting part 582 through the pressure block 592, thereby fixing the connecting part 582 onto the movable part 57.

[0176] The number of connecting parts 582 can be multiple, and these connecting parts 582 are spaced apart circumferentially along the torsion part 581. For example, there can be two connecting parts 582, which are located on opposite sides of the torsion part 581. This improves the connection strength between the elastic member 58 and the movable member 57, ensuring that the elastic member 58 can smoothly drive the movable member 57 to move. When the torsion part 581 is in its natural state, the central axis of the torsion part 581 is collinear with the axis around which the drive mechanism 2 rotates. This facilitates the transmission of torque generated by the fixed seat 51 to the movable member 57 and the clamping mechanism 3 through the elastic member 58, improving the torque transmission efficiency.

[0177] Referring to Figures 38 to 43, in one embodiment, the movable member 57 includes a body portion 571 and a mounting post 572. The mounting post 572 protrudes from the surface of the body portion 571 facing the fixed base 51, and the connecting portion 582 is wrapped around the mounting post 572. A pressure block 592 can be sleeved on the mounting post 572, and a fourth fastener 591 can be inserted into the mounting post 572 and fixedly connected to it. By wrapping the connecting portion 582 around the mounting post 572 and pressing it against the connecting portion 582 with the pressure block 592, the connecting portion 582 is prevented from detaching from the movable member 57, thereby improving the connection strength between the connecting portion 582 and the movable member 57.

[0178] Referring to Figures 38 to 43, in one embodiment, the fixing base 51 includes a base body 51A and protrusions 51B, and the number of protrusions 51B can be multiple. The base body 51A has a first surface 510 facing the movable member 57, and the multiple protrusions 51B protrude from the first surface 510. The multiple protrusions 51B can be spaced apart on the base body 51A, for example, evenly spaced along the circumference of the base body 51A. The length of each protrusion 51B is equal, that is, the protrusion length of each protrusion 51B relative to the first surface 510 is equal, that is, the multiple protrusions 51B are arranged at the same height. The movable member 57 has a second surface 570 facing the fixing base 51, the ends of the protrusions 51B abut against the second surface 570, and the elastic member 58 abuts against the second surface 570. At least a portion of the elastic member 58 is received in the space between the first surface 510 and the second surface 570. By setting the protrusion 51B, the first surface 510 and the second surface 570 can be prevented from contacting, thereby reducing the contact area between the movable part 57 and the fixed seat 51, and thus reducing the frictional resistance generated by the movable part 57 during sliding.

[0179] Referring to Figures 38 to 43, in one embodiment, both the first surface 510 and the second surface 570 are planar and parallel to each other. This ensures that the distance between the first surface 510 and the second surface 570 remains consistent, so that the direction of the movable member 57 is always parallel to the first surface 510 and the second surface 570, thereby improving the movement accuracy of the movable member 57.

[0180] Referring to Figures 38 to 43, in one embodiment, a limiting groove 115 is recessed on the outer surface of the housing 11 of the main unit 1. The movable member 57 is rotatably disposed in the limiting groove 115. At least a portion of the peripheral side surface of the movable member 57 can maintain a set distance or contact with the inner wall surface of the limiting groove 115, allowing the movable member 57 to move within a certain range within the limiting groove 115. It is understood that when a portion of the peripheral side surface of the movable member 57 contacts the inner wall surface of the limiting groove 115, the movable member 57 will stop moving. Therefore, by providing the limiting groove 115, the maximum travel distance of the movable member 57 can be limited, preventing the third adjustment mechanism 5 from excessively adjusting the position of the clamping mechanism 3.

[0181] Referring to Figures 38 to 43, in one embodiment, the third adjustment mechanism 5 also includes a fifth fastener 593, which is used to fix the elastic member 58, the fixed seat 51 and the drive mechanism 2 together, thereby improving the ease of assembly of the third adjustment mechanism 5.

[0182] Specifically, the movable part 57 has a clearance through hole 575 that penetrates through the movable part 57. The elastic part 58 has a clearance channel 583 that corresponds to and communicates with the clearance through hole 575. The clearance through hole 575 and the clearance channel 583 are directly opposite the fifth fastener 593. The fifth fastener 593 can be a bolt, etc. The fifth fastener 593 passes through the clearance through hole 575 and the clearance channel 583 and is fixedly connected to the drive mechanism 2 (one end of the fifth fastener 593 is specifically fixedly connected to the transmission component 24 in the drive mechanism 2). One end of the elastic part 58 is sandwiched between the cap of the fifth fastener 593 and the drive mechanism 2. In this way, the fifth fastener 593 fixes the elastic part 58, the fixed seat 51 and the drive mechanism 2.

[0183] When the drive mechanism 2 is driven to rotate by manually turning the operating knob 21 or by the electric drive component in the host 1, the transmission component 24 in the drive mechanism 2 drives the fixed seat 51 to rotate, and the fixed seat 51 drives the clamping mechanism 3 to rotate through the elastic component 58 and the movable component 57.

[0184] Referring to Figures 38 to 43, in one embodiment, the movable member 57 has a third positioning post 573 and a third fixing part 574 on the side facing the clamping mechanism 3. The third positioning post 573 is inserted into the clamping mechanism 3, thereby achieving the positioning of the clamping mechanism 3 and improving the installation efficiency and accuracy of the clamping mechanism 3. The third fixing part 574 can be detachably connected to the clamping mechanism 3, for example, by a snap-fit ​​connection, thereby achieving a fixed connection between the clamping mechanism 3 and the movable member 57. The assembly relationship between the third positioning post 573 and the third fixing part 574 and the clamping mechanism 3 can be referred to the assembly relationship between the first positioning post and the first fixing part and the clamping mechanism 3 described above, and will not be repeated here.

[0185] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0186] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A locking control device, characterized in that, The device includes a host (1), a drive mechanism (2), and a clamping mechanism (3). The drive mechanism (2) is rotatably connected to the host (1). The clamping mechanism (3) includes a mounting base (31), at least two clamping members (32) slidably connected to the mounting base (31), and a first adjustment mechanism (33) disposed on the mounting base (31). The drive mechanism (2) is driven to the mounting base (31) and is used to drive the clamping mechanism (3) to rotate. At least two clamping members (32) are spaced apart on the mounting base (31). The first adjustment mechanism (33) is driven to the at least two clamping members (32) and is used to drive the at least two clamping members (32) to slide relative to the mounting base (31) so that the at least two clamping members (32) move toward or away from each other.

2. The locking device according to claim 1, characterized in that, The first adjustment mechanism (33) includes an adjustment seat (331), which is rotatably disposed on the outside of the mounting base (31). The adjustment seat (331) is connected to at least two clamping members (32) in a transmission manner. When the adjustment seat (331) rotates, it can drive at least two clamping members (32) to move towards each other or away from each other.

3. The locking device according to claim 2, characterized in that, The inner wall of the adjusting seat (331) is provided with a spiral pattern (3311), and each of the clamping members (32) is provided with a spiral tooth (32A) at one end facing the adjusting seat (331). The spiral teeth (32A) of at least two of the clamping members (32) respectively engage with the spiral pattern (3311). When the adjusting seat (331) rotates, it can drive the spiral tooth (32A) to move through the spiral pattern (3311), so that at least two of the clamping members (32) move towards each other or away from each other.

4. The locking device according to claim 3, characterized in that, The adjustment seat (331) includes a side plate portion (331A) and an outer ring portion (331B) connected to the side plate portion (331A). The outer ring portion (331B) is disposed on the outer periphery of the mounting seat (31). The side plate portion (331A) is located on the side of the mounting seat (31) close to the main unit (1). The spiral pattern (3311) is disposed on the inner wall of the side plate portion (331A). The outer wall of the outer ring portion (331B) is provided with an anti-slip portion (3312).

5. The locking device according to claim 1, characterized in that, The first adjustment mechanism (33) includes a gear (332) which is rotatably connected to the mounting base (31); each clamping member (32) is provided with a rack (32B), and the gear (332) meshes with the rack (32B) on each clamping member (32); when the gear (332) rotates, the gear (332) drives the rack (32B) on each clamping member (32) to move, so that at least two clamping members (32) move towards each other or away from each other.

6. The locking device according to claim 5, characterized in that, The first adjustment mechanism (33) further includes an adjustment member (333) disposed on the mounting base (31). The adjustment member (333) is used to drive one of the clamping members (32) to move and drive the other clamping members (32) to move through the gear (332); or, the adjustment member (333) is used to drive the gear (332) to rotate so that all the clamping members (32) can move simultaneously through the gear (332).

7. The locking device according to claim 6, characterized in that, The adjusting member (333) includes an adjusting bolt, which is rotatably mounted on the mounting base (31). The adjusting bolt is threadedly connected to one of the clamping members (32), and the adjusting bolt can drive the clamping member (32) to move when it rotates.

8. The locking device according to claim 7, characterized in that, The mounting base (31) is provided with a first limiting part, and the adjusting bolt is provided with a second limiting part. The first limiting part and the second limiting part cooperate to restrict the adjusting bolt from moving axially on the mounting base (31).

9. The locking device according to claim 1, characterized in that, Each clamping member (32) includes a clamping part (321) and a sliding part (322) connected to the clamping part (321). The clamping part (321) is located on the side of the mounting base (31) away from the host (1). The mounting base (31) is provided with a guide part (311), and the sliding part (322) is slidably connected to the guide part (311). The first adjustment mechanism (33) is used to drive the sliding parts (322) of at least two clamping members (32) to slide along the guide part (311) so that the clamping parts (321) of at least two clamping members (32) move towards each other or away from each other.

10. The locking device according to claim 9, characterized in that, Each of the clamping members (32) further includes an abutment (323) connected to the clamping portion (321); the abutment (323) is movable relative to the clamping portion (321) toward or away from the mounting base (31) to adjust the length of the abutment (323) protruding from the free end (3210) of the clamping portion (321).

11. The locking device according to claim 10, characterized in that, Each of the clamping members (32) further includes a first fastener (324), and the abutment member (323) is fixedly connected to the clamping part (321) through the first fastener (324); at least two fastening holes (3231) are provided on the abutment member (323) or the clamping part (321), and the at least two fastening holes (3231) are spaced apart along the moving direction of the abutment member (323); when the first fastener (324) is engaged with different fastening holes (3231), the length of the free end (3210) of the abutment member (323) protruding from the clamping part (321) changes.

12. The locking device according to claim 1, characterized in that, The locking device (10) further includes a second adjustment mechanism (4). The host (1) includes a housing (11). The second adjustment mechanism (4) is connected to the housing (11). The second adjustment mechanism (4) is used to install to the door. The second adjustment mechanism (4) can adjust the distance between the housing (11) and the door, thereby adjusting the distance between the clamping mechanism (3) and the door.

13. The locking device according to claim 12, characterized in that, The second adjustment mechanism (4) includes a mounting bracket (41) and a second fastener (42). The mounting bracket (41) is slidably connected to the housing (11) and is used to be installed on the door. The mounting bracket (41) and the housing (11) are fixedly connected by the second fastener (42).

14. The locking device according to claim 13, characterized in that, The mounting bracket (41) includes a connecting seat (411) and support arms (412) disposed on opposite sides of the connecting seat (411). The connecting seat (411) is used to install onto the door body. The support arms (412) are fixedly connected to the connecting seat (411) and extend along the moving direction of the mounting bracket (41). The support arms (412) are slidably connected to the housing (11) and are fixedly connected to the housing (11) by the second fastener (42).

15. The locking device according to claim 14, characterized in that, The support arm (412) or the housing (11) is provided with a plurality of limiting holes (4121), and the plurality of limiting holes (4121) are spaced apart along the moving direction of the mounting bracket (41); when the second fastener (42) is engaged with different limiting holes (4121), the length of the support arm (412) extending out of the housing (11) changes, so as to adjust the distance between the housing (11) and the door.

16. The locking device according to claim 14, characterized in that, The housing (11) is provided with a fixed bracket (14), the fixed bracket (14) is provided with a guide groove (141), the housing (11) is provided with a limiting groove (112) communicating with the guide groove (141), the support arm (412) passes through the limiting groove (112) and is slidably installed in the guide groove (141), and the second fastener (42) passes through the housing (11) and the support arm (412) and is connected to the fixed bracket (14); Alternatively, the outer wall of the housing (11) is provided with a mounting groove (113), the mounting groove (113) extends along the moving direction of the support arm (412), the support arm (412) is slidably disposed in the mounting groove (113), the second fastener (42) passes through the support arm (412) and is connected to the housing (11); the housing (11) is connected with a shielding member (15), the shielding member (15) covers the mounting groove (113) and the support arm (412) located in the mounting groove (113).

17. The locking device according to claim 12, characterized in that, The second adjustment mechanism (4) includes a shim (43), which is connected to the housing (11) and is used to be installed on the door. The shim (43) can increase the distance between the housing (11) and the door.

18. The locking device according to claim 17, characterized in that, The second adjustment mechanism (4) also includes a third fastener (44); When there is one shim (43), the shim (43) is fixed to the housing (11) by the third fastener (44). When there are at least two shims (43), one of the shims (43) is used to install to the door body, and the other shim (43) is fixed to the housing (11) by the third fastener (44); each shim (43) has a first snap-fit ​​part (431) on one side and a second snap-fit ​​part (432) on the other side, and adjacent shims (43) are connected by snap-fitting the first snap-fit ​​part (431) and the second snap-fit ​​part (432).

19. The locking device according to claim 1, characterized in that, The locking device (10) further includes a third adjustment mechanism (5), which is connected between the mounting base (31) and the drive mechanism (2); the third adjustment mechanism (5) is movable relative to the host (1) so that the entire clamping mechanism (3) can move relative to the host (1) through the third adjustment mechanism (5).

20. The locking device according to claim 19, characterized in that, The third adjustment mechanism (5) includes a fixed base (51) and an adjustment component (52). The fixed base (51) is connected to the drive mechanism (2). The adjustment component (52) is disposed on the fixed base (51) and is connected to the mounting base (31). The adjustment component (52) is capable of sliding relative to the fixed base (51) in multiple sliding directions. The multiple sliding directions of the adjustment component (52) are all perpendicular to the axis around which the drive mechanism (2) rotates.

21. The locking device according to claim 20, characterized in that, The multiple sliding directions of the adjustment component (52) include a first direction and a second direction set at an angle. The adjustment component (52) includes a first slider (521) and a second slider (522). The first slider (521) is slidably connected to the fixed seat (51) along a first curve (501). The second slider (522) is slidably connected to the first slider (521) along a second curve (502). The first curve (501) extends in the first direction, and the second curve (502) extends in the second direction. The mounting seat (31) is connected to the second slider (522).

22. The locking device according to claim 21, characterized in that, The third adjustment mechanism (5) further includes a first guide (53), one of the first sliding member (521) and the fixed base (51) is fixedly connected to the first guide (53), and the other is provided with a first slide groove (54), which extends along the first curve (501); the first guide (53) and the first slide groove (54) are slidably engaged so that the first sliding member (521) is slidably connected to the fixed base (51); The third adjustment mechanism (5) further includes a second guide (55), one of the second sliding member (522) and the first sliding member (521) is fixedly connected to the second guide (55), and the other has a second groove (56) extending along the second curve (502); the second guide (55) and the second groove (56) are slidably engaged so that the second sliding member (522) and the first sliding member (521) are slidably connected.

23. The locking device according to claim 22, characterized in that, The first slide groove (54) is formed on the fixed base (51), and the second slide groove (56) is formed on the first sliding member (521); the second slide groove (56) has an orthographic projection on the fixed base (51), and the orthographic projection of the second slide groove (56) is spaced apart from the first sliding member (521).

24. The locking device according to claim 19, characterized in that, The third adjustment mechanism (5) includes a fixed base (51), a movable part (57), and an elastic part (58). The fixed base (51) is connected to the drive mechanism (2), and the movable part (57) is connected to the mounting base (31). The elastic part (58) is disposed between the fixed base (51) and the movable part (57). The two ends of the elastic part (58) are fixedly connected to the fixed base (51) and the movable part (57) respectively. The elastic part (58) can be twisted to drive the movable part (57) to move relative to the fixed base (51).

25. The locking device according to claim 24, characterized in that, The elastic element (58) includes a torsion part (581) and a connecting part (582). One end of the torsion part (581) is connected to the fixed seat (51), and the other end of the torsion part (581) is connected to the connecting part (582). The connecting part (582) protrudes radially from the torsion part (581) and is connected to the movable element (57).

26. The locking device according to claim 24, characterized in that, The fixed base (51) includes a base body (51A) and a plurality of protrusions (51B). The base body (51A) has a first surface (510) facing the movable member (57). The plurality of protrusions (51B) are spaced apart from each other and protrude from the first surface (510). The protrusion length of each protrusion (51B) relative to the first surface (510) is equal. The movable member (57) has a second surface (570) facing the fixed base (51). The ends of the protrusions (51B) abut against the second surface (570). At least a portion of the elastic member (58) is received in the space between the first surface (510) and the second surface (570).

27. The locking device according to any one of claims 1-26, characterized in that, The drive mechanism (2) includes an operating knob (21) and a knob shaft (22) connected to each other. The operating knob (21) and the clamping mechanism (3) are located on opposite sides of the host (1). The knob shaft (22) is inserted into the host (1) and is connected to the mounting base (31). The host (1) is provided with an electric drive assembly (12). The electric drive assembly (12) is connected to the knob shaft (22). Both the electric drive assembly (12) and the operating knob (21) can drive the knob shaft (22) to rotate, so that the clamping mechanism (3) can rotate.

28. A smart door lock, characterized in that, The device includes a locking device and a locking control device as described in any one of claims 1-27; the clamping mechanism (3) is used to clamp the unlocking knob of the locking device, and the driving mechanism (2) drives the clamping mechanism (3) to rotate so as to drive the unlocking knob to rotate and unlock the locking device.

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