Access control lock

Abstract

The embodiment of the invention provides an access control lock which comprises a first panel assembly and a spring bolt assembly, the first panel assembly comprises a first lock box, a first clutch module and a first emergency unlocking module, and the first clutch module and the first emergency unlocking module are arranged in the first lock box. The first clutch module comprises a first rotary knob, a first rotary knob shaft, a first clutch rotating shaft, a first clutch pin and a first clutch spring, the first rotary knob is installed in the first lock box, the first rotary knob shaft is connected with the first rotary knob, the first clutch rotating shaft is in transmission connection with the spring bolt assembly, and the first clutch pin is installed on the first rotary knob shaft. The first emergency unlocking module comprises a first lock cylinder, a first driving mechanism and a first limiting mechanism, the first driving mechanism is in transmission connection with the first clutch pin and detachably abuts against the first lock cylinder, and the first driving mechanism is provided with a first emergency locking position and a first emergency unlocking position. And after emergency unlocking is completed, the first driving mechanism moves to the first emergency locking position from the first emergency unlocking position.

Description

Technical Field

[0001] This application relates to the field of lock technology, and more specifically, to an access control lock. Background Technology

[0002] Access control systems are widely used as a means of prevention and management, especially in scenarios such as power systems and rail transit systems where room doors, fire doors, iron gates, glass doors, and other doors that need to be locked.

[0003] Access control systems are equipped with emergency unlocking mechanisms to open the access control system in case of malfunction or emergency, allowing for the evacuation and escape of people. Existing emergency unlocking methods require that after switching the access lock to the unlocked state using an unlocking device (such as a computer key or mechanical key), part of the unlocking device needs to remain inside the access control system to keep the lock in the unlocked state until the access control system is opened. This makes it easy for the operator to forget about the unlocking device after unlocking, leading to its loss. Summary of the Invention

[0004] This application provides an access control lock that can maintain the unlocked state of the access control lock without leaving part of the unlocking device inside the access control room after the unlocking device switches the access control lock to the unlocked state, thereby reducing the risk of the unlocking device being forgotten.

[0005] This application provides an access control lock, including a first panel assembly and a latch assembly. The first panel assembly includes a first lock box and a first motor unlocking module, a first clutch module, and a first emergency unlocking module disposed within the first lock box. The first motor unlocking module is used to unlock the access control upon receiving an electric unlocking command. The first clutch module includes a first knob, a first knob shaft, a first clutch pivot, a first clutch pin, and a first clutch spring. The first knob is installed in the first lock box, the first knob shaft is connected to the first knob, the first clutch pivot is drivenly connected to the latch assembly, and the first clutch pin is installed on the first knob shaft. The first emergency unlocking module includes a first lock cylinder, a first drive mechanism, and a first limiting mechanism. The first drive mechanism is drivenly connected to the first clutch pin and detachably abuts against the first lock cylinder. The first drive mechanism has a first emergency locking position and a first emergency unlocking position. In the first emergency locking position, the first drive mechanism allows the first clutch pin to disengage from the first clutch pivot under the drive of the first clutch spring. In the first emergency unlock position, the first drive mechanism can drive the first clutch pin to move, connecting the first knob shaft and the first clutch shaft. During emergency unlocking, the first lock cylinder rotates, and the first drive mechanism moves from the first emergency locking position to the first emergency unlock position. The first limiting mechanism can limit the first drive mechanism and keep it in the first emergency unlock position. After emergency unlocking is completed, the first drive mechanism moves from the first emergency unlock position to the first emergency locking position.

[0006] Specifically, during emergency unlocking, by inserting and rotating an unlocking device (such as a computer key or mechanical key), the first lock cylinder is rotated, thereby moving the first drive mechanism from the first emergency locking position to the first emergency unlocking position. After moving to the first emergency unlocking position, the first limiting mechanism can limit the first drive mechanism and keep it in the first emergency unlocking position. This allows the first lock cylinder to be rotated without needing to remain in a position that would keep the first drive mechanism in the first emergency unlocking position, thus resetting the first lock cylinder and allowing the unlocking device to be pulled out. During this period, the first drive mechanism in the first emergency unlocking position causes the first clutch pin to compress the first clutch spring and connect the first knob shaft and the first clutch pivot. This allows the first knob to drive the bolt assembly to switch states via the first knob shaft and the first clutch pivot to open the access control system.

[0007] In the above technical solution, by setting a first limiting mechanism, the operator can still unlock the access control lock after pulling out the unlocking device after inserting the unlocking device to complete the state switch of the access control lock, thereby reducing the risk of the unlocking device being lost.

[0008] In some embodiments, the first limiting mechanism includes a first lever and a first lever spring, the first lever being rotatably disposed within a first lock housing. A first driving mechanism moves from a first emergency locking position to a first emergency unlocking position, thereby rotating the first lever to compress the first lever spring. When the first driving mechanism moves to the first emergency unlocking position, the first lever spring elastically drives the first lever to abut against the first driving mechanism, preventing the first driving mechanism from moving to the first emergency locking position.

[0009] Specifically, when the first drive mechanism moves from the first emergency locking position to the first emergency unlocking position, the first lever avoids the first drive mechanism and compresses the first lever spring, thereby preventing the lever from restricting the first drive mechanism from switching from the first emergency locking position to the first emergency unlocking position; when the first drive mechanism is in the first emergency unlocking position, the first lever spring resets so that the first lever abuts against the first drive mechanism, thereby restricting the first drive mechanism from moving to the first emergency locking position.

[0010] In the above technical solution, by setting a first lever and a first lever spring, the first driving mechanism can be limited after it moves to the first emergency unlocking position without restricting its movement from the first emergency locking position to the first emergency unlocking position. The structure is simple and easy to implement.

[0011] In some embodiments, the first limiting mechanism further includes a first crossbar, which is movably disposed within the first lock housing and drivenly connected to the first knob shaft. During emergency unlocking, the first knob shaft rotates to move the first crossbar, pushing the first lever to rotate and compressing the first lever spring, thereby allowing the first drive mechanism to move from the first emergency unlock position to the first emergency locking position.

[0012] Specifically, when the access control is unlocked by rotating the first knob to drive the latch assembly through the first knob shaft and the first clutch shaft, the first knob can drive the first crossbar to drive the first lever to rotate and compress the first lever spring, so that the first lever no longer restricts the first drive mechanism from moving from the first emergency unlock position to the first emergency lock position, thereby enabling the first drive mechanism to return to the first emergency lock position. Thus, after completing an emergency unlock of the access control and closing the access control again, the access control lock is in the locked state.

[0013] In the above technical solution, by setting a first crossbar, the first drive mechanism is allowed to reset while the access control lock is unlocked in an emergency, so that the access control lock is in a locked state after the access control is closed again, thus preventing the risk of the access control lock failing after an emergency unlock.

[0014] In some embodiments, the first driving mechanism includes a first push rod and a first push rod spring. The first push rod is movably disposed within a first lock housing along a first direction. A first protrusion is provided on one side of the first push rod in a second direction. The first protrusion has a first guide surface and a first support surface in the first direction, which is perpendicular to the second direction. The first driving mechanism moves from a first emergency locking position to a first emergency unlocking position to compress the first push rod spring. The first guide surface drives a first lever to compress the first lever spring. When the first push rod moves to the first emergency unlocking position, the first lever spring elastically drives the first lever to abut against the first support surface.

[0015] Specifically, during emergency unlocking, the unlocking device (such as a computer key or mechanical key) is inserted and rotated to rotate the first lock cylinder. This causes the first push rod to compress the first push rod spring and move from the first emergency locking position to the first emergency unlocking position. During this process, the first guide surface and the first lever slide relative to each other, driving the first lever to compress the first lever spring. After moving to the first emergency unlocking position, the first guide surface disengages from the first lever, and the first lever rotates back to its original position under the drive of the first lever spring, positioning the first lever on the side of the first protrusion where the first support surface is located. Subsequently, rotating the unlocking device resets the first lock cylinder, allowing the unlocking device to be pulled out. During this period, the lock cylinder no longer abuts against the first push rod, causing the first push rod to reset under the action of the first push rod spring, thus abutting the first contact surface against the first lever, keeping the first push rod in the first emergency unlocking position.

[0016] When unlocking the access control in an emergency, the first knob can drive the first crossbar to rotate the first lever and compress the first lever spring, so that the first lever no longer abuts against the first contact surface, thereby causing the first push rod to move to the first emergency locking position under the action of the first push rod spring.

[0017] In the above technical solution, by setting a first push rod spring, the risk of the access control lock failing due to the first push rod being stuck in the first emergency unlocking position during emergency unlocking is reduced.

[0018] In some embodiments, the first lock cylinder includes a first lock shell and a first cam. The first lock shell is rotatably disposed within a first lock housing, the first cam is mounted on one end of the first lock shell, and a first push rod abuts against the outer periphery of the first cam.

[0019] In the above technical solution, by setting a first cam so that the first lock housing can drive the first drive mechanism to move from the first emergency locking position to the first emergency unlocking position during the rotation process, the structure is simple and easy to implement.

[0020] In some embodiments, the first motor unlocking module includes a first motor and a first motor push rod. The first motor push rod is movably disposed within a first lock box and is drively connected to a first drive mechanism and a first clutch pin. The first motor drives the first motor push rod to move, and the first motor push rod pushes the first clutch pin to move, so that the first clutch pin connects to a first knob shaft and a first clutch pivot shaft.

[0021] In the above technical solution, the first motor can drive the first motor push rod to push the first clutch pin to move, so that the first clutch pin connects the first knob shaft and the first clutch shaft. At the same time, the first drive mechanism can drive the first motor push rod to push the first clutch pin to move, so that the first drive mechanism can use part of the structure of the first motor unlocking module to unlock, which is beneficial to reduce the number of parts of the first panel assembly and reduce the size of the first panel assembly.

[0022] In some embodiments, the first motor unlocking module further includes a first motor slider and a first motor spring. The first motor slider is slidably disposed on the first motor push rod and is drivenly connected to the output end of the first motor. The two ends of the first motor spring abut against the first motor slider and the first motor push rod, respectively. During emergency unlocking, the first lock cylinder rotates, the first drive mechanism moves from the first emergency locking position to the first emergency unlocking position, and drives the first motor push rod to compress the first motor spring.

[0023] Specifically, during emergency unlocking, the first lock cylinder rotates the first drive mechanism to move from the first emergency locking position to the first emergency unlocking position, and drives the first motor push rod to compress the first motor spring, so that the first motor slider does not need to move and therefore will not drive the first motor to rotate. After the first drive mechanism is reset to the first emergency locking position, the first motor push rod can be reset under the elastic force of the first motor spring.

[0024] In the above technical solution, by setting a first motor slider and a first motor spring, the risk of damage to the first motor during emergency unlocking is reduced, and the structure is simple and easy to implement.

[0025] In some embodiments, the first panel assembly further includes a pin, a pin spring, and a drive component. The pin is mounted on a first knob shaft, and the drive component is disposed within a first lock housing. The pin spring provides an elastic force to the pin to drive it into a first clutch shaft, and the drive component drives the pin out of the first clutch shaft.

[0026] In the above technical solution, by setting a pin, a pin spring, and a driving component, an emergency unlocking method for the access control lock is increased.

[0027] In some embodiments, the driving component is a solenoid, which is energized to drive the pin to disengage from the first clutch shaft.

[0028] In the above technical solution, by setting the driving component as a solenoid, when the access control is powered off due to an emergency such as a fire, the pin is inserted into the first clutch shaft under the action of the pin spring, so that the access control lock is in the unlocked state. The operator can rotate the first knob to unlock the access control, thereby facilitating the operator's escape.

[0029] In some embodiments, the access control lock further includes a second panel assembly, which includes a second lock housing and a second motor unlocking module, a second clutch module, and a second emergency unlocking module disposed within the second lock housing. The second motor unlocking module is used to unlock the access control upon receiving an electric unlocking command. The second clutch module includes a second knob, a second knob shaft, a second clutch pivot, a second clutch pin, and a second clutch spring. The second knob is installed within the second lock housing, the second knob shaft is connected to the second knob, the second clutch pivot is throttlely connected to the latch assembly, and the second clutch pin is installed on the second knob shaft. The second emergency unlocking module includes a second lock cylinder, a second drive mechanism, and a second limiting mechanism. The second drive mechanism is throttlely connected to the second clutch pin and detachably abuts against the second lock cylinder. The second drive mechanism has a second emergency locking position and a second emergency unlocking position. In the second emergency locking position, the second drive mechanism allows the second clutch pin to disengage from the second clutch pivot under the drive of the second clutch spring. In the second emergency unlocking position, the second drive mechanism can drive the second clutch pin to move to connect the second knob shaft and the second clutch pivot. During emergency unlocking, the second lock cylinder rotates, and the second drive mechanism moves from the second emergency locked position to the second emergency unlocked position. The second limiting mechanism can limit the second drive mechanism and keep it in the second emergency unlocked position. After emergency unlocking is completed, the second drive mechanism moves from the second emergency unlocked position to the second emergency locked position. The first panel assembly is the inner panel assembly, and the second panel assembly is the outer panel assembly.

[0030] In the above technical solution, by setting a first panel component and a second panel component, the operator can unlock the access control lock from both inside and outside the door. Attached Figure Description

[0031] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the structure of an access control lock provided in some embodiments of this application; Figure 2 Exploded views of the access control lock structure provided in some embodiments of this application; Figure 3 Exploded view of the structure of a first panel assembly provided in some embodiments of this application; Figure 4 Exploded views of the structure of the first clutch module provided in some embodiments of this application; Figure 5Exploded view of the structure of the first emergency unlocking module provided in some embodiments of this application; Figure 6 This is a schematic diagram of the structure of a first panel assembly provided in some embodiments of this application; Figure 7 for Figure 5 A magnified view of a section at point A in the middle; Figure 8 A schematic diagram of the structure of the first panel assembly in the first emergency locking position is provided for some embodiments of this application; Figure 9 for Figure 8 A magnified view of a section at point B in the middle; Figure 10 This application provides a schematic diagram of the structure of the first panel assembly in the first emergency unlocking position according to some embodiments; Figure 11 for Figure 10 A magnified view of a section at point C; Figure 12 Exploded view of the structure of the first motor unlocking module provided in some embodiments of this application; Figure 13 This is a structural cross-sectional view of the first panel assembly provided in some embodiments of this application when the pin is not inserted into the first clutch pivot; Figure 14 This is a structural cross-sectional view of the first panel assembly provided in some embodiments of this application when the pin is inserted into the first clutch pivot; Figure 15 An exploded view of the structure of a second panel assembly provided in some embodiments of this application.

[0033] icon: 1000 - Access control lock; 100 - First panel assembly; 10 - First lock box; 11 - First housing; 12 - First cover plate; 20 - First motor unlocking module; 21 - First motor; 211 - Connecting sleeve; 211A - Fourth protrusion; 22 - First motor push rod; 221 - Body part; 221A - Second mounting groove; 222 - Abutting part; 23 - First motor slider; 23A - Second oblong hole; 24 - First motor spring; 25 - First motor bracket; 251 - First motor 26-Motor bracket cover; 30-First motor status board; 30-First clutch module; 30A-Third protrusion; 31-First knob; 32-First knob shaft; 32A-First mounting hole; 32B-First mounting groove; 321-First knob shaft body; 322-First clutch cover; 33-First clutch shaft; 331-First clearance part; 34-First clutch pin; 35-First clutch spring; 36-First knob torsion spring; 40-First emergency unlocking module; 41-First lock cylinder; 41 1-First lock housing; 412-First cam; 413-First wireless chip; 42-First drive mechanism; 421-First push rod; 4211-First protrusion; 4211A-First guide surface; 4211B-First support surface; 422-First push rod spring; 43-First limiting mechanism; 431-First lever; 4311-Second protrusion; 432-First lever spring; 433-First crossbar; 4331-First oblong hole; 434-First bracket; 4341-First Bracket cover; 50-Pin; 51-Pin spring; 52-Drive component; 200-Lock tongue assembly; 210-Lock body; 2101-Lock tongue; 220-Square shaft; 300-Second panel assembly; 310-Second lock box; 320-Second motor unlocking module; 330-Second clutch module; 340-Second emergency unlocking module; 400-Latch assembly; 410-Latch plate; 420-Magnet; 2000-Post; X-First direction; Y-Second direction; Z-Third direction. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0035] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the description, claims, and accompanying drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy.

[0036] In this application, the reference to "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments.

[0037] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0038] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0039] In the embodiments of this application, the same reference numerals denote the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width, and other dimensions of various components in the embodiments of this application shown in the accompanying drawings, as well as the overall thickness, length, width, and other dimensions of the integrated device, are merely illustrative and should not constitute any limitation on this application.

[0040] In this application, "multiple" means two or more (including two).

[0041] The following is a detailed description of the access control lock 1000 with reference to the attached diagram.

[0042] Please refer to Figures 1-5 , Figure 1 This is a schematic diagram of the structure of the access lock 1000 provided in some embodiments of this application. Figure 2 This is an exploded view of the structure of the access lock 1000 provided in some embodiments of this application. Figure 3 This is an exploded view of the structure of the first panel assembly 100 provided in some embodiments of this application. Figure 4 This is an exploded view of the structure of the first clutch module 30 provided in some embodiments of this application. Figure 5 This is an exploded view of the structure of the first emergency unlocking module 40 provided in some embodiments of this application. Embodiments of this application provide an access control lock 1000, including a first panel assembly 100 and a latch assembly 200. The first panel assembly 100 includes a first lock housing 10 and a first motor unlocking module 20, a first clutch module 30, and a first emergency unlocking module 40 disposed within the first lock housing 10. The first motor unlocking module 20 is used to unlock the access control upon receiving an electric unlocking command. The first clutch module 30 includes a first knob 31, a first knob shaft 32, a first clutch pivot 33, a first clutch pin 34, and a first clutch spring 35. The first knob 31 is installed inside the first lock housing 10, the first knob shaft 32 is connected to the first knob 31, the first clutch pivot 33 is drively connected to the latch assembly 200, and the first clutch pin 34 is installed on the first knob shaft 32. The first emergency unlocking module 40 includes a first lock cylinder 41, a first drive mechanism 42, and a first limiting mechanism 43. The first drive mechanism 42 is tractively connected to a first clutch pin 34 and detachably abuts against the first lock cylinder 41. The first drive mechanism 42 has a first emergency locked position and a first emergency unlocked position. In the first emergency locked position, the first drive mechanism 42 allows the first clutch pin 34 to disengage from the first clutch shaft 33 under the drive of the first clutch spring 35. In the first emergency unlocked position, the first drive mechanism 42 can drive the first clutch pin 34 to move, connecting the first knob shaft 32 and the first clutch shaft 33. During emergency unlocking, the first lock cylinder 41 rotates the first drive mechanism 42 from the first emergency locked position to the first emergency unlocked position, and the first limiting mechanism 43 can limit the first drive mechanism 42 and keep it in the first emergency unlocked position. After emergency unlocking is completed, the first drive mechanism 42 moves from the first emergency unlocked position to the first emergency locked position.

[0043] Please refer to Figure 1 and Figure 2The latch assembly 200 is a structural component disposed in an external structure (door frame or post 2000) for locking to another external structure (post 2000 or door frame). Exemplarily, the latch assembly 200 may include a lock body 210 and a square shaft 220. A latch 2101 is disposed on one side of the lock body 210. The latch 2101 extends out of the external structure where the latch assembly 200 is disposed and inserts into another external structure to lock the two external structures. The latch 2101 retracts into the external structure where the latch assembly 200 is disposed to unlock the two external structures. The square shaft 220 is drive-connected to the latch 2101. The square shaft 220 rotates to drive the latch 2101 to extend or retract into the external structure where the latch 2101 is disposed.

[0044] The first panel assembly 100 is an assembly structure integrating a first knob 31, a first lock cylinder 41 (or a key, password, or card reader module), as well as decorative and protective components. Exemplarily, the first panel assembly 100 includes a first lock box 10 and a first motor unlocking module 20, a first clutch module 30, and a first emergency unlocking module 40 disposed within the first lock box 10.

[0045] Please refer to Figure 3 The first lock box 10 is a housing structure for accommodating other structures of the first panel. In some embodiments, it includes a first housing 11 and a first cover plate 12. The first housing 11 has a first opening communicating with its interior on one side. The first cover plate 12 is detachably connected to the first housing 11 and is used to seal the first opening.

[0046] Please refer to Figure 3 and Figure 4 The first clutch module 30 is a module in the first panel assembly 100 connected to the square shaft 220 of the latch assembly 200. It should be noted that the first clutch module 30 has a disengaged state and an engaged state. Taking the side where the first panel assembly 100 is located as an example, when the first clutch module 30 is engaged, the access control lock 1000 is in the unlocked state. At this time, the operator can rotate the square shaft 220 through the first knob 31 to extend or retract the latch 2101 to open or close the access control. When the first clutch module 30 is disengaged and the access control is closed, the access control lock 1000 is in the locked state. At this time, the operator turning the first knob 31 will cause the first knob 31 to rotate freely. Exemplarily, the first clutch module 30 includes a first knob 31, a first knob shaft 32, a first clutch pivot 33, a first clutch pin 34, and a first clutch spring 35.

[0047] Please refer to Figure 4The first knob 31 is a structural component that is partially exposed outside the first lock box 10 for the operator to rotate; the first knob shaft 32 is a structural component that is connected to the first knob 31 to transmit the rotation of the first knob 31; the first clutch shaft 33 is a shaft-shaped structure that is connected to the square shaft 220 in the first clutch module 30; and the first clutch pin 34 is a pin-shaped structural component that is set on the first knob shaft 32.

[0048] Please refer to Figure 4 In some embodiments, the first knob shaft 32 has a first mounting hole 32A extending through it along its axis. One end of the first clutch shaft 33 is located within the first mounting hole 32A. A first clearance portion 331 (such as a groove or blind hole) is provided on the circumferential side of the first clutch pin 34. The first knob shaft 32 also has a first mounting groove 32B extending radially therein. One end of the first mounting groove 32B is located on the hole wall of the first mounting hole 32A, and the other end of the first mounting groove 32B is located on the outer circumferential surface of the first knob shaft 32. The first clutch pin 34 is received within the first mounting groove 32B. The first clutch pin 34 protrudes from the hole wall of the first mounting hole 32A and is inserted into the first clearance portion 331 to connect the first clutch shaft 33 and the first knob shaft 32. The first clutch pin 34 disengages from the first mounting hole 32A so that the first clutch shaft 33 and the first knob shaft 32 can rotate independently.

[0049] Please refer to Figure 4 In some embodiments, the width of the end of the first mounting groove 32B near the first mounting hole 32A is smaller than the width of the end of the first mounting groove 32B near the outer peripheral surface of the first knob shaft 32, so as to form a first stepped surface on the groove wall of the first mounting groove 32B. The first clutch spring 35 is sleeved outside the first clutch pin 34 and located inside the first mounting groove 32B. The two ends of the first clutch spring 35 abut against the first stepped surface and the first clutch pin 34, respectively.

[0050] Please refer to Figure 4 In some embodiments, the first knob shaft 32 includes a first knob shaft body 321 and a first clutch cover plate 322. The first knob shaft body 321 and the first clutch cover plate 322 are overlapped along the axis of the first knob shaft 32 and are detachably connected. The first mounting hole 32A passes through the first knob shaft body 321 and the first clutch cover plate 322 in sequence. The first mounting groove 32B is located on the side of the first knob shaft body 321 facing the first clutch cover plate 322.

[0051] Please refer to Figure 4In some embodiments, the first clutch module 30 further includes a first knob torsion spring 36, which is sleeved on the outside of the first knob 31 and is used to provide elastic force to the first knob shaft 32 to drive the first knob shaft 32 to move the first clutch pin 34 in a direction aligned with the first clearance portion 331. Exemplarily, the first knob torsion spring 36 is located on the side of the first knob shaft 32 facing the first knob 31. The first clutch cover plate 322 has a protrusion on the side facing the first knob shaft body 321, with the end face of the protrusion protruding from the side of the first knob shaft body 321 away from the first clutch cover plate 322. One end of the first knob torsion spring 36 is connected to the first lock box 10, and the other end of the first knob torsion spring 36 abuts against the side of the protrusion. The first knob 31 drives the first knob shaft 32 to rotate to compress the first knob torsion spring 36.

[0052] Please refer to Figure 3 The first motor unlocking module 20 can be a module that drives the first clutch pin 34 to connect the first knob shaft 32 and the first clutch shaft 33, or the first motor unlocking module 20 can be a module that directly connects the first knob shaft 32 and the first clutch shaft 33.

[0053] In some embodiments, the first motor unlocking module 20 includes a first motor status board 26, which is electrically connected to the driving component in the first motor unlocking module 20. The first motor status board 26 is used to read the driving component in the first motor unlocking module 20 and upload it to the background.

[0054] For example, the access control lock 1000 is electrically connected to the access control controller and can work with the access control controller's card swiping, password, and facial recognition functions to control personnel access. Specifically, the access control lock 1000 can authorize access via local card swiping, password, and facial recognition, or remotely authorize unlocking, driving the first motor unlocking module 20 to the unlocked state to achieve unlocking.

[0055] In some embodiments, the driving component in the first motor unlocking module 20 may be a solenoid.

[0056] Please refer to Figure 5 The first emergency unlocking module 40 is a structural module used for emergency unlocking of the access control system. For example, the first emergency unlocking module 40 includes a first lock cylinder 41, a first drive mechanism 42, and a first limit mechanism 43.

[0057] The first lock cylinder 41 can be a mechanical lock cylinder or a computer key lock cylinder. For example, the first lock cylinder 41 includes a first wireless chip 413 partially located outside the first lock box 10. Specifically, in an emergency unlocking operation using the computer key, the computer key obtains ID information via the wireless chip, confirms lock access, and then issues authorization to the computer key to perform the emergency unlocking operation. In a mechanical emergency unlocking operation, the emergency unlocking operation can be achieved by inserting and turning a specific mechanical key.

[0058] Please refer to Figure 5 The first drive mechanism 42 is a mechanism in the first emergency unlocking module 40 that follows the rotation of the first lock cylinder 41 to push the first clutch pin 34 to compress the first clutch spring 35 and connect the first clutch shaft 33 and the first knob shaft 32. For example, the first drive mechanism 42 can be a transmission rod, which is slidably installed inside the first lock box 10. One end of the transmission rod abuts against the outer periphery of the first lock cylinder 41, and the other end of the transmission rod can abut against the end of the first clutch pin 34 away from the first clutch shaft 33, or it can be connected to the end of the first clutch pin 34 away from the first clutch shaft 33 via other structural components.

[0059] Please refer to Figure 5 The first limiting mechanism 43 is a mechanism in the first emergency unlocking module 40 that restricts the first driving mechanism 42 from moving from the first emergency unlocking position to the first emergency locking position.

[0060] In some embodiments, the first emergency unlocking module 40 includes a first bracket 434 and a first bracket cover 4341. The first bracket 434 has a second opening on the side facing the first bracket cover 4341. The first bracket cover 4341 is installed on the first bracket 434 and blocks the second opening. A space is formed between the first bracket 434 and the first bracket cover 4341 for accommodating part of the first limiting mechanism 43 and part of the first driving mechanism 42.

[0061] Please refer to Figure 2 In some embodiments, the access control lock 1000 further includes a latch assembly 400. The latch assembly 400 is disposed on the side of the external structure where the latch assembly 200 is provided, for the latch 2101 to extend. The latch assembly 400 includes a latch plate 410, on which a latch 2101 opening for the latch 2101 to extend is provided. A magnet 420 is provided below the latch 2101 opening. The magnet 420 cooperates with a Hall element provided on another external structure to detect the open and closed status of the access control, and transmits the data to the backend through a circuit board electrically connected to the Hall element.

[0062] Specifically, during emergency unlocking, by inserting and rotating an unlocking device (such as a computer key or mechanical key), the first lock cylinder 41 is rotated, thereby causing the first drive mechanism 42 to move from the first emergency locking position to the first emergency unlocking position. After moving to the first emergency unlocking position, the first limiting mechanism 43 can limit the first drive mechanism 42 and keep it in the first emergency unlocking position, so that the first lock cylinder 41 does not need to be in a position that would keep the first drive mechanism 42 in the first emergency unlocking position. Thus, the unlocking device can be rotated to reset the first lock cylinder 41, and the unlocking device can be pulled out. During this period, the first drive mechanism 42 in the first emergency unlocking position causes the first clutch pin 34 to compress the first clutch spring 35 and connect the first knob shaft 32 and the first clutch rotating shaft 33, so that the first knob 31 can drive the lock tongue assembly 200 to switch states through the first knob shaft 32 and the first clutch rotating shaft 33 to open the access control.

[0063] Understandably, after the first clutch pin 34 is inserted into the first clutch shaft 33, when the first knob 31 is rotated to drive the first knob shaft 32 and the first clutch shaft 33 to move, the first knob shaft 32 and the first clutch shaft 33 will provide shearing force to the first clutch shaft 33 to generate friction, thereby restricting the first clutch pin 34 from disengaging from the first clutch shaft 33 under the drive of the first clutch spring 35.

[0064] In this embodiment, by setting the first limiting mechanism 43, the operator can still unlock the access control lock 1000 after pulling out the unlocking device after inserting the unlocking device to complete the state switch of the access control lock 1000, thereby reducing the risk of the unlocking device being lost.

[0065] Please refer to Figure 5 According to some embodiments of this application, the first limiting mechanism 43 includes a first lever 431 and a first lever spring 432, the first lever 431 being rotatably disposed within the first lock box 10. A first driving mechanism 42 moves from a first emergency locking position to a first emergency unlocking position, thereby driving the first lever 431 to rotate and compress the first lever spring 432. When the first driving mechanism 42 moves to the first emergency unlocking position, the first lever spring 432 elastically drives the first lever 431 to abut against the first driving mechanism 42, thereby preventing the first driving mechanism 42 from moving to the first emergency locking position.

[0066] The first lever 431 is a rod-shaped structure that is movably disposed within the first lock box 10.

[0067] In some embodiments, the first limiting mechanism 43 includes a first lever 431 and a first lever spring 432. The first lever 431 is movably disposed within the first lock housing 10 along a second direction Y. The first driving mechanism 42 moves along a first direction X from a first emergency locking position to a first emergency unlocking position, thereby driving the first lever 431 away from the first driving mechanism 42 along the second direction Y to compress the first lever spring 432. When the first driving mechanism 42 moves to the first emergency unlocking position, the first lever spring 432 elastically drives the first lever 431 to reset along the second direction Y to abut against the first driving mechanism 42, thereby preventing the first driving mechanism 42 from moving to the first emergency locking position. The first direction X is perpendicular to the second direction Y. Exemplarily, the first direction X may be parallel to the length direction of the first lock housing 10, and the second direction Y may be parallel to the width direction of the first lock housing 10.

[0068] Please refer to Figure 5 One end of the first lever spring 432 is connected to the first lock box 10, and the other end of the first lever spring 432 is connected to the first lever 431. Exemplarily, the first lever 431 has a mounting part on the side opposite to the first drive mechanism 42, and the first lever spring 432 is sleeved on the outside of the mounting part.

[0069] In some embodiments, the first drive mechanism 42 has a groove on the side facing the first lever 431. When the first drive mechanism 42 is in the first emergency unlock position, one end of the first lever 431 can be inserted into the groove under the action of the first lever spring 432 to restrict the first drive mechanism 42 to the first emergency unlock position.

[0070] Specifically, when the first drive mechanism 42 moves from the first emergency locking position to the first emergency unlocking position, the first lever 431 avoids the first drive mechanism 42 and compresses the first lever spring 432, thereby preventing the lever from restricting the first drive mechanism 42 from switching from the first emergency locking position to the first emergency unlocking position; when the first drive mechanism 42 is in the first emergency unlocking position, the first lever spring 432 resets so that the first lever 431 abuts against the first drive mechanism 42, thereby restricting the first drive mechanism 42 from moving to the first emergency locking position.

[0071] In this embodiment, by setting a first lever 431 and a first lever spring 432, the first driving mechanism 42 can be limited after it moves to the first emergency unlocking position without restricting its movement from the first emergency locking position to the first emergency unlocking position. The structure is simple and easy to implement.

[0072] Please refer to Figure 3 and Figure 5 Please refer to Figure 6According to some embodiments of this application, the first limiting mechanism 43 further includes a first crossbar 433, which is movably disposed within the first lock box 10 and is connected to the first knob shaft 32 in a transmission manner. During emergency unlocking, the first knob shaft 32 rotates to move the first crossbar 433, pushing the first lever 431 to rotate and compressing the first lever spring 432, thereby allowing the first drive mechanism 42 to move from the first emergency unlocking position to the first emergency locking position.

[0073] The first crossbar 433 is a rod-shaped structure movably disposed within the first lock box 10. Exemplarily, the first crossbar 433 can extend along the second direction Y and move along the second direction Y.

[0074] In some embodiments, a slide groove extending along a first direction X is provided in the first lock box 10, and a first crossbar 433 is movably disposed in the slide groove along the first direction X. A first oblong hole 4331 is provided on the first crossbar 433, and the first oblong hole 4331 extends along a second direction Y. A third protrusion 30A is provided on the side of the first knob shaft 32 opposite to the first knob 31. The third protrusion 30A is inserted into the second oblong hole 23A. The first knob shaft 32 rotates so that the third protrusion 30A drives the first crossbar 433 to move along the first direction X.

[0075] Specifically, when the first knob 31 is rotated to unlock the access control via the first knob shaft 32 and the first clutch shaft 33, the first knob 31 drives the first crossbar 433 to rotate the first lever 431 and compress the first lever spring 432. This causes the first lever 431 to no longer restrict the first drive mechanism 42 from moving from the first emergency unlock position to the first emergency lock position, allowing the first drive mechanism 42 to return to the first emergency lock position. Thus, after completing one emergency unlock of the access control and then closing the access control again, the access control lock 1000 is in a locked state. Subsequently, under the action of the operator or the action of the first knob torsion spring 36, the first knob 31 drives the first knob shaft 32 to return to its original position, and the first lever 431 returns to its original position under the action of the first clutch spring 35.

[0076] In this embodiment, by setting the first crossbar 433, the first drive mechanism 42 is allowed to reset while the access control lock 1000 is unlocked in an emergency, so that the access control lock 1000 is locked after the access control is closed again, thus preventing the risk of the access control lock 1000 failing after an emergency unlock.

[0077] Please refer to Figure 5 and Figures 7-11 , Figure 7 for Figure 5A partial enlarged view at point A. According to some embodiments of this application, the first drive mechanism 42 includes a first push rod 421 and a first push rod spring 422. The first push rod 421 is movably disposed within the first lock box 10 along a first direction X. A first protrusion 4211 is provided on one side of the first push rod 421 in a second direction Y. The first protrusion 4211 has a first guide surface 4211A and a first support surface 4211B in the first direction X, where the first direction X is perpendicular to the second direction Y. The first drive mechanism 42 moves from a first emergency locking position to a first emergency unlocking position to compress the first push rod spring 422. The first guide surface 4211A drives the first lever 431 to compress the first lever spring 432. When the first push rod 421 moves to the first emergency unlocking position, the first lever spring 432 elastically drives the first lever 431 to abut against the first support surface 4211B.

[0078] The first push rod 421 is a rod-shaped structure that extends integrally along the first direction X within the first lock box 10.

[0079] Please refer to Figure 5 One end of the first push rod spring 422 is connected to the first bracket 434, and the other end of the first push rod spring 422 is connected to the first push rod 421.

[0080] In some embodiments, the first bracket 434 is provided with a limiting groove extending along the first direction X, and a portion of the first push rod 421 is located in the limiting groove and is adapted to the limiting groove.

[0081] Please refer to Figure 7 The first protrusion 4211 is a structure that protrudes from the first push rod 421 on one side in the second direction Y.

[0082] The first guide surface 4211A and the first support surface 4211B are two opposite sides of the first protrusion 4211 disposed in the first direction X. Exemplarily, the distance between the first guide surface 4211A and the side with the first protrusion 4211 gradually decreases in the second direction Y along the direction from the first emergency locking position to the first emergency unlocking position. The first support surface 4211B is a plane perpendicular to the first direction X.

[0083] Please refer to Figure 7 , Figure 9 and Figure 11 In some embodiments, the first lever 431 is located on the side of the first push rod 421 in the third direction Z. A second protrusion 4311 is provided on the side of the first lever 431 facing the first push rod 421, and the periphery of the second protrusion 4311 abuts against the first guide surface 4211A or the first support surface 4211B. It should be noted that this is for ease of observation of the extent of the first protrusion 4211 and the second protrusion 4311. Figure 9 and Figure 11The first protrusion 4211 and the second protrusion 4311 are represented by dashed lines. The dashed lines are only used to represent the first protrusion 4211 and the second protrusion 4311, and the dashed lines themselves have no other meaning.

[0084] Specifically, during emergency unlocking, by inserting and rotating the unlocking device (such as a computer key or mechanical key), the first lock cylinder 41 is rotated, causing the first push rod 421 to compress the first push rod spring 422 and move from the first emergency locked position to the first emergency unlocked position. During this period, the first guide surface 4211A and the first lever 431 slide relative to each other, driving the first lever 431 to compress the first lever spring 432. After moving to the first emergency unlocked position, the first guide surface 4211A disengages from the first lever 431, and the first lever 431 rotates back to its original position under the drive of the first lever spring 432, so that the first lever 431 is located on the side of the first protrusion 4211 where the first support surface 4211B is provided. Subsequently, rotating the unlocking device drives the first lock cylinder 41 to reset, thereby allowing the unlocking device to be pulled out. During this period, the lock cylinder no longer abuts against the first push rod 421, which causes the first push rod 421 to reset under the action of the first push rod spring 422, thereby causing the first abutting surface to abut against the first lever 431, so that the first push rod 421 remains in the first emergency unlocking position.

[0085] When unlocking the access control in an emergency, the first knob 31 can drive the first crossbar 433 to drive the first lever 431 to rotate and compress the first lever spring 432, so that the first lever 431 no longer abuts against the first contact surface, thereby causing the first push rod 421 to move to the first emergency locking position under the action of the first push rod spring 422.

[0086] In this embodiment, by setting a first push rod spring 422, the risk of the first push rod 421 remaining in the first emergency unlock position and causing the access control lock 1000 to fail during emergency unlocking is reduced.

[0087] Please refer to Figure 5 , Figure 8 and Figure 9 According to some embodiments of this application, the first lock cylinder 41 includes a first lock shell 411 and a first cam 412. The first lock shell 411 is rotatably disposed in the first lock box 10, the first cam 412 is installed at one end of the first lock shell 411, and the first push rod 421 abuts against the outer periphery of the first cam 412.

[0088] Specifically, the first cam 412 has a first end away from the axis of the first lock housing 411 and a second end close to the axis of the first lock housing 411. When the second end of the first cam 412 abuts against the first push rod 421, the first push rod 421 is in the first emergency locking position. The first cam 412 rotates under the drive of the first lock housing 411, so that the area of ​​the first cam 412 abutting against the first push rod 421 moves closer to the first end, thereby driving the first push rod 421 to move from the first emergency locking position to the first emergency unlocking position. After the first drive mechanism 42 is in the first emergency unlocking position, the first limiting mechanism 43 restricts the first drive mechanism 42 from moving from the first emergency unlocking position to the first emergency locking position. At this time, the first lock housing 411 drives the first cam 412 to rotate, so that there is a gap between the first cam 412 and the first push rod 421 in the first direction X.

[0089] In this embodiment, by setting the first cam 412, the first lock housing 411 can drive the first drive mechanism 42 to move from the first emergency locking position to the first emergency unlocking position during the rotation process, which is simple in structure and easy to implement.

[0090] Please refer to Figure 12 , Figure 12 This is an exploded view of the structure of the first motor unlocking module 20 provided in some embodiments of this application. According to some embodiments of this application, the first motor unlocking module 20 includes a first motor 21 and a first motor push rod 22. The first motor push rod 22 is movably disposed within the first lock box 10, and the first motor push rod 22 is drively connected to a first drive mechanism 42 and a first clutch pin 34. The first motor 21 is used to drive the first motor push rod 22 to move, and the first motor push rod 22 is used to push the first clutch pin 34 to move, so that the first clutch pin 34 connects the first knob shaft 32 and the first clutch rotating shaft 33.

[0091] The first motor 21 is a driving component in the first motor unlocking module 20 used to drive the first motor push rod 22. Understandably, the first motor 21 can also be other driving components, such as a solenoid.

[0092] The first motor push rod 22 can be a rod-shaped structure that extends integrally along the first direction X. In some embodiments, the first motor push rod 22 includes a body portion 221 and an abutment portion 222. The body portion 221 extends along the first direction X, and the center point of the first knob 31 is located on the extension line of the body portion 221. The end of the body portion 221 away from the first knob shaft 32 is used to abut against the first drive mechanism 42. The abutment portion 222 is disposed at the end of the body portion 221 near the first knob shaft 32 and extends circumferentially along the first knob shaft 32. The abutment portion 222 is used to abut against the first clutch pin 34. This ensures that when the first knob 31 drives the first knob shaft 32 and the first clutch shaft 33 to move, the first clutch pin 34 can continuously abut against the abutment portion 222, thereby preventing the first clutch pin 34 from disengaging from the first clutch shaft 33 due to sudden release during rotation, which could cause interference between the first clutch pin 34 and the first motor push rod 22.

[0093] In some embodiments, the first motor unlocking module 20 further includes a first motor bracket 25 and a first motor bracket cover 251. The first motor bracket 25 is used to accommodate at least a portion of the first motor 21 and the first motor push rod 22. The first motor bracket 25 and the first motor bracket cover 251 are stacked in a third direction Z and are detachably connected. The side of the first motor bracket 25 facing the first motor bracket cover 251 has an opening communicating with its interior, and the first motor bracket cover 251 is used to seal the opening.

[0094] In this embodiment, the first motor 21 can drive the first motor push rod 22 to push the first clutch pin 34 to move, so that the first clutch pin 34 connects the first knob shaft 32 and the first clutch shaft 33. At the same time, the first drive mechanism 42 can drive the first motor push rod 22 to push the first clutch pin 34 to move, so that the first drive mechanism 42 can use part of the structure of the first motor unlocking module 20 to unlock, which helps to reduce the number of parts of the first panel assembly 100 and reduce the size of the first panel assembly 100.

[0095] Please refer to Figures 12-14 , Figure 13 This is a structural cross-sectional view of the first panel assembly 100 when the pin 50 is not inserted into the first clutch pivot 33, according to some embodiments of this application. Figure 14This is a cross-sectional view of the first panel assembly 100 when the pin 50 is inserted into the first clutch shaft 33, according to some embodiments of this application. According to some embodiments of this application, the first motor unlocking module 20 further includes a first motor slider 23 and a first motor spring 24. The first motor slider 23 is slidably disposed on the first motor push rod 22 and is drively connected to the output end of the first motor 21. The two ends of the first motor spring 24 abut against the first motor slider 23 and the first motor push rod 22, respectively. During emergency unlocking, the first lock cylinder 41 rotates, the first drive mechanism 42 moves from the first emergency locking position to the first emergency unlocking position, and drives the first motor push rod 22 to compress the first motor spring 24.

[0096] The first motor slider 23 is a block structure that is connected to the first motor 21 and slidably mounted on the first motor push rod 22.

[0097] Please refer to Figures 12-14 In some embodiments, the first motor 21 is located on one side of the body portion 221 in the second direction Y. A second mounting groove 221A is provided on the side of the body portion 221 facing the first motor 21, extending along the first direction X. The first motor slider 23 is slidably disposed within the second mounting groove 221A. A first motor spring 24 is located within the second mounting groove 221A, with both ends of the first motor spring 24 abutting against the groove wall of the second mounting groove 221A and the first motor slider 23, respectively. The first motor spring 24 and the first motor slider 23 are arranged sequentially along the direction from the first drive mechanism 42 towards the first motor push rod 22. A second oblong hole 23A is provided on the side of the first motor slider 23 facing the first motor 21, extending along the third direction Z. A connecting sleeve 211 is provided at the drive end of the first motor 21, with a fourth protrusion 211A on the side of the connecting sleeve 211 facing the first motor slider 23, the fourth protrusion 211A being inserted into the second oblong hole 23A. The fourth protrusion 211A is offset from the output end of the first motor 21.

[0098] Specifically, during emergency unlocking, the first lock cylinder 41 rotates, the first drive mechanism 42 moves from the first emergency locking position to the first emergency unlocking position, and drives the first motor push rod 22 to compress the first motor spring 24, so that the first motor slider 23 does not need to move, and thus will not drive the first motor 21 to rotate. After the first drive mechanism 42 returns to the first emergency locking position, the first motor push rod 22 can return to its original position under the elastic force of the first motor spring 24.

[0099] In this embodiment, by setting the first motor slider 23 and the first motor spring 24, the risk of damage to the first motor 21 during emergency unlocking is reduced, and the structure is simple and easy to implement.

[0100] Please refer to Figure 2 Please refer to Figure 13 and Figure 14 According to some embodiments of this application, the first panel assembly 100 further includes a pin 50, a pin spring 51, and a drive component 52. The pin 50 is mounted on the first knob shaft 32, and the drive component 52 is disposed within the first lock box 10. The pin spring 51 provides elastic force to the pin 50 to drive the pin 50 into the first clutch shaft 33, and the drive component 52 drives the pin 50 out of the first clutch shaft 33.

[0101] The pin 50 is a pin-shaped structure in the first panel assembly 100 that can move along the first direction X.

[0102] Please refer to Figure 13 and Figure 14 In some embodiments, the first clearance portion 331 on the first clutch shaft 33 passes through the through hole of the first clutch shaft 33 radially, and the pin 50 and the first clutch pin 34 are located on opposite sides of the first clutch shaft 33 in the first direction X. When one end of the first clearance portion 331 on the first clutch shaft 33 is aligned with the pin 50, the other end of the first clearance portion 331 is aligned with the first clutch pin 34.

[0103] In some embodiments, the first knob shaft 32 has a first mounting hole 32A extending through it along its axis, one end of the first clutch shaft 33 is located in the first mounting hole 32A, and a first clearance portion 331 (such as a groove or blind hole) is provided on the periphery of the first clutch pin 34. The first knob shaft 32 also has a first mounting groove 32B extending radially therein, one end of the first mounting groove 32B is located on the hole wall of the first mounting hole 32A, and the other end of the first mounting groove 32B is located on the outer peripheral surface of the first knob shaft 32. The first clutch pin 34 is received in the first mounting groove 32B, the first clutch pin 34 protrudes from the hole wall of the first mounting hole 32A and is inserted into the first clearance portion 331 to connect the first clutch shaft 33 and the first knob shaft 32. The first clutch pin 34 disengages from the first mounting hole 32A so that the first clutch shaft 33 and the first knob shaft 32 can rotate independently. The first clutch spring 35 is sleeved outside the first clutch pin 34 and located inside the first mounting groove 32B. Both ends of the first clutch spring 35 abut against the first stepped surface. The width of the end of the first mounting groove 32B near the first mounting hole 32A is smaller than the width of the end of the first mounting groove 32B near the outer peripheral surface of the first knob shaft 32, so as to form a first stepped surface on the groove wall of the first mounting groove 32B. Exemplarily, the first knob shaft 32 includes a first knob shaft body 321 and a first clutch cover plate 322. The first knob shaft body 321 and the first clutch cover plate 322 overlap and are detachably connected along the axis of the first knob shaft 32. The first mounting hole 32A passes through the first knob shaft body 321 and the first clutch cover plate 322 sequentially. The first mounting groove 32B is located on the side of the first knob shaft body 321 facing the first clutch cover plate 322.

[0104] In this embodiment, by setting a pin 50, a pin spring 51, and a drive component 52, an emergency unlocking method for the access control lock 1000 is added.

[0105] Please refer to Figure 13 and Figure 14 According to some embodiments of this application, the drive component 52 is a solenoid, which is energized to drive the pin 50 to disengage from the first clutch shaft 33.

[0106] Specifically, when the solenoid is energized, the iron core of the solenoid attracts the pin 50, thereby driving the pin 50 to disengage from the first clutch shaft 33 and compress the pin spring 51; when the solenoid is de-energized, the pin spring 51 can drive the pin 50 to insert into the first clutch shaft 33, thereby connecting the first knob shaft 32 and the first clutch shaft 33.

[0107] In this embodiment, by setting the drive component 52 as a solenoid, when the access control is powered off due to an emergency such as a fire, the pin 50 is inserted into the first clutch shaft 33 under the action of the pin spring 51, so that the access control lock 1000 is in the unlocked state, and the operator can rotate the first knob 31 to unlock the access control, thereby facilitating the operator's escape.

[0108] Please refer to Figure 15 , Figure 15 This is an exploded view of the structure of a first panel assembly 100 provided in some embodiments of this application. According to some embodiments of this application, the access control lock 1000 further includes a second panel assembly 300, which includes a second lock housing 310 and a second motor unlocking module 320, a second clutch module 330, and a second emergency unlocking module 340 disposed within the second lock housing 310. The second motor unlocking module 320 is used to unlock the access control upon receiving an electric unlocking command. The second clutch module 330 includes a second knob, a second knob shaft, a second clutch pivot, a second clutch pin, and a second clutch spring. The second knob is installed within the second lock housing 310, the second knob shaft is connected to the second knob, the second clutch pivot is throttlely connected to the latch assembly 200, and the second clutch pin is installed on the second knob shaft. The second emergency unlocking module 340 includes a second lock cylinder, a second drive mechanism, and a second limiting mechanism. The second drive mechanism is throttlely connected to the second clutch pin and detachably abuts against the second lock cylinder. The second drive mechanism has a second emergency locking position and a second emergency unlocking position. In the second emergency locked position, the second drive mechanism allows the second clutch pin to disengage from the second clutch shaft under the drive of the second clutch spring. In the second emergency unlock position, the second drive mechanism can drive the second clutch pin to move, connecting the second knob shaft and the second clutch shaft. During emergency unlocking, the second lock cylinder rotates, and the second drive mechanism moves from the second emergency locked position to the second emergency unlock position. The second limiting mechanism can limit the second drive mechanism and keep it in the second emergency unlock position. After emergency unlocking is completed, the second drive mechanism moves from the second emergency unlock position to the second emergency locked position. The first panel assembly 100 is an inner door panel assembly, and the second panel assembly 300 is an outer door panel assembly.

[0109] Please refer to Figure 15The second lock box 310 is a housing structure used to accommodate other structures of the second panel. The second clutch module 330 is a module in the second panel assembly 300 connected to the square shaft 220 of the latch assembly 200. It should be noted that the second clutch module 330 has an engaged state and an disengaged state. Taking the operator on the side where the second panel assembly 300 is located as an example, when the second clutch module 330 is engaged, the access control lock 1000 is in the unlocked state. At this time, the operator can rotate the square shaft 220 through the second knob to extend or retract the latch 2101 to open or close the access control. When the second clutch module 330 is disengaged and the access control is closed, the access control lock 1000 is in the locked state. At this time, the operator turning the second knob will cause the second knob to rotate freely. Exemplarily, the second clutch module 330 includes a second knob, a second knob shaft, a second clutch pivot, a second clutch pin, and a second clutch spring.

[0110] The second motor unlocking module 320 can be a module that drives the second clutch pin to connect the second knob shaft and the second clutch shaft, or the second motor unlocking module 320 can be a module that directly connects the second knob shaft and the second clutch shaft.

[0111] The second emergency unlocking module 340 is a structural module used for emergency unlocking of the access control system. Exemplarily, the second emergency unlocking module 340 includes a second lock cylinder, a second drive mechanism, and a second limit mechanism.

[0112] Specifically, during emergency unlocking, by inserting and rotating the unlocking device (such as a computer key or mechanical key), the second lock cylinder is rotated, thereby moving the second drive mechanism from the second emergency locking position to the second emergency unlocking position. After moving to the second emergency unlocking position, the second limiting mechanism can limit the second drive mechanism and keep it in the second emergency unlocking position. This allows the second lock cylinder to be rotated to reset the second lock cylinder, which can then be pulled out. During this period, the second drive mechanism, in the second emergency unlocking position, compresses the second clutch spring with the second clutch pin and connects the second knob shaft and the second clutch pivot shaft. This allows the second knob to drive the latch assembly 200 to switch states via the second knob shaft and the second clutch pivot shaft to open the access control system.

[0113] In this embodiment, a first panel assembly 100 and a second panel assembly 300 are provided so that the operator can unlock the access control lock 1000 from both inside and outside the door.

[0114] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0115] The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit this application. For those skilled in the art, this application can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An access control lock, characterized in that, It includes a first panel assembly and a latch assembly. The first panel assembly includes a first lock box and a first motor unlocking module, a first clutch module and a first emergency unlocking module disposed within the first lock box. The first motor unlocking module is used to unlock the access control system upon receiving an electric unlocking command; The first clutch module includes a first knob, a first knob shaft, a first clutch pivot, a first clutch pin, and a first clutch spring. The first knob is installed inside the first lock box, the first knob shaft is connected to the first knob, the first clutch pivot is connected to the lock tongue assembly, and the first clutch pin is installed on the first knob shaft. The first emergency unlocking module includes a first lock cylinder, a first drive mechanism, and a first limiting mechanism. The first drive mechanism is drivenly connected to the first clutch pin and detachably abuts against the first lock cylinder. The first drive mechanism has a first emergency locking position and a first emergency unlocking position. In the first emergency locked position, the first drive mechanism allows the first clutch pin to disengage from the first clutch shaft under the drive of the first clutch spring; in the first emergency unlocked position, the first drive mechanism can drive the first clutch pin to move to connect the first knob shaft and the first clutch shaft. During emergency unlocking, the first lock cylinder rotates, and the first drive mechanism moves from the first emergency locking position to the first emergency unlocking position. The first limiting mechanism can limit the first drive mechanism and keep it in the first emergency unlocking position. After the emergency unlocking is completed, the first drive mechanism moves from the first emergency unlocking position to the first emergency locking position.

2. The access control lock as described in claim 1, characterized in that, The first limiting mechanism includes a first lever and a first lever spring, wherein the first lever is rotatably disposed within the first lock box; The first drive mechanism moves from the first emergency locking position to the first emergency unlocking position to drive the first lever to rotate and compress the first lever spring; when the first drive mechanism moves to the first emergency unlocking position, the first lever spring elastically drives the first lever to abut against the first drive mechanism to prevent the first drive mechanism from moving to the first emergency locking position.

3. The access control lock as described in claim 2, characterized in that, The first limiting mechanism further includes a first crossbar, which is movably disposed in the first lock box and is connected to the first knob shaft via a transmission. During emergency unlocking, the first knob shaft rotates to move the first crossbar, pushes the first lever to rotate and compresses the first lever spring, allowing the first drive mechanism to move from the first emergency unlock position to the first emergency lock position.

4. The access control lock as described in claim 2, characterized in that, The first drive mechanism includes a first push rod and a first push rod spring. The first push rod is movably disposed in the first lock box along a first direction. The first push rod has a first protrusion on one side in a second direction. The first protrusion has a first guide surface and a first support surface in the first direction. The first direction is perpendicular to the second direction. The first drive mechanism moves from the first emergency locking position to the first emergency unlocking position to compress the first push rod spring, and the first guide surface drives the first lever to compress the first lever spring; when the first push rod moves to the first emergency unlocking position, the first lever spring elastically drives the first lever to abut against the first support surface.

5. The access control lock as described in claim 4, characterized in that, The first lock cylinder includes a first lock shell and a first cam. The first lock shell is rotatably disposed in the first lock box, the first cam is installed at one end of the first lock shell, and the first push rod abuts against the outer periphery of the first cam.

6. The access control lock as described in claim 1, characterized in that, The first motor unlocking module includes a first motor and a first motor push rod. The first motor push rod is movably disposed in the first lock box. The first motor push rod is drivenly connected to the first drive mechanism and the first clutch pin. The first motor is used to drive the first motor push rod to move, and the first motor push rod is used to push the first clutch pin to move, so that the first clutch pin connects the first knob shaft and the first clutch shaft.

7. The access control lock as described in claim 6, characterized in that, The first motor unlocking module further includes a first motor slider and a first motor spring. The first motor slider is slidably disposed on the first motor push rod. The first motor slider is connected to the output end of the first motor. The two ends of the first motor spring abut against the first motor slider and the first motor push rod, respectively. During emergency unlocking, the first lock cylinder rotates, the first drive mechanism moves from the first emergency locking position to the first emergency unlocking position, and drives the first motor push rod to compress the first motor spring.

8. The access control lock as described in claim 1, characterized in that, The first panel assembly further includes a pin, a pin spring, and a drive component. The pin is mounted on the first knob shaft, and the drive component is disposed within the first lock box. The pin spring provides elastic force to the pin to drive the pin into the first clutch shaft, and the drive component drives the pin to disengage from the first clutch shaft.

9. The access control lock as described in claim 8, characterized in that, The driving component is a solenoid, which is energized to drive the pin to disengage from the first clutch shaft.

10. The access control lock as described in any one of claims 1-9, characterized in that, The access control lock also includes a second panel assembly, which includes a second lock box and a second motor unlocking module, a second clutch module and a second emergency unlocking module disposed within the second lock box; The second motor unlocking module is used to unlock the access control system upon receiving an electric unlocking command; The second clutch module includes a second knob, a second knob shaft, a second clutch pivot, a second clutch pin, and a second clutch spring. The second knob is installed inside the second lock box. The second knob shaft is connected to the second knob. The second clutch pivot is connected to the lock tongue assembly. The second clutch pin is installed on the second knob shaft. The second emergency unlocking module includes a second lock cylinder, a second drive mechanism, and a second limiting mechanism. The second drive mechanism is drivenly connected to the second clutch pin and detachably abuts against the second lock cylinder. The second drive mechanism has a second emergency locking position and a second emergency unlocking position. In the second emergency locking position, the second drive mechanism allows the second clutch pin to disengage from the second clutch shaft under the drive of the second clutch spring; When in the second emergency unlock position, the second drive mechanism can drive the second clutch pin to move, so as to connect the second knob shaft and the second clutch shaft; During emergency unlocking, the second lock cylinder rotates, and the second drive mechanism moves from the second emergency locking position to the second emergency unlocking position. The second limiting mechanism can limit the second drive mechanism and keep it in the second emergency unlocking position. After the emergency unlocking is completed, the second drive mechanism moves from the second emergency unlocking position to the second emergency locking position. The first panel assembly is an inner door panel assembly, and the second panel assembly is an outer door panel assembly.

Images