Lock, lock set and door system

Abstract

The utility model provides a lock, lock set and door system, the lock includes handle and lock unit, handle is equipped with the tongue, the lock unit includes the shell and installs in the inductive module, first NFC module, motor, energy storage module, cam and first elastic member of shell, the shell is equipped with the slot and the ball rail that communicates with the slot, energy storage module and first NFC module, motor electricity is connected, the ball rail is equipped with the ball group in, the cam extends into the ball rail, the cam is equipped with first ball groove, the cam has the locking position and the unlocking position, the tongue is equipped with second ball groove, the second ball groove is located in the ball rail when the tongue is completely inserted to install into the slot, the motor can drive the cam rotation to the unlocking position, makes the ball group removes into first ball groove and removes second ball groove, first elastic member can force the cam rotation to the locking position, makes the ball group removes first ball groove. The door system includes lock set, the lock set includes above -mentioned lock, and the lock can realize no entity key unlocking and low use cost.

Description

Technical Field

[0001] This utility model relates to the field of lock technology, specifically to a lock, a lock kit with the lock, and a door system with the lock kit. Background Technology

[0002] The door system includes a door, a frame, and a lock. The lock is connected between the door and the frame to control the opening and closing of the door. At the same time, a key is used to authorize specific personnel to operate the door to prevent unauthorized personnel from opening it and to ensure the safety of the space.

[0003] like Figure 1 and Figure 2 As shown, an existing lock 9 that requires a computer key to unlock includes a lock unit 91 and a handle 92. The lock unit 91 includes a housing 911, a lock cylinder structure 912, a lock rod 913, an elastic element 914, and a sensing module, etc. The outer casing 911 is mounted on the frame and has a slot 9111. The lock cylinder structure 912, lock rod 913, elastic element 914, and sensing module are all installed inside the outer casing 911. The lock rod 913 can slide relative to the outer casing 911. The elastic element 914 is used to force the first end of the lock rod 913 into the slot 9111. The lock cylinder core 9121 of the lock cylinder structure 912 is used to cooperate with the computer key to drive the first end of the lock rod 913 out of the slot 9111. The sensing module mainly includes a wireless chip. When the computer key is inserted into the lock cylinder core 9121, the rotation of the computer key is hindered by a limiting mechanism. Only after the computer key recognizes the correct chip will the limiting mechanism be controlled to retract and release the restriction, allowing the computer key to drive the lock cylinder core 9121 to rotate to unlock. The handle 92 is mounted on the door and has a tongue 921 and a handle 922. The tongue 921 is perpendicular to the handle 922 and has a socket 9211. When the door is closed, the latch 921 is inserted into the slot 9111, and the first end of the locking rod 913 is inserted into the slot 9111 and the mortise 9211 under the action of the elastic element 914, so as to lock and fix the door and frame. When it is necessary to release the lock between the door and the frame, the key is inserted into the lock cylinder structure 912 to drive the lock cylinder 9121 to rotate, so that the lock cylinder 9121 drives the locking rod 913 to exit the mortise 9211, thereby releasing the lock on the latch 921. At this time, the door can be rotated and opened relative to the frame.

[0004] The shortcomings of the aforementioned lock 9 are: First, it requires the design of a complex lock cylinder structure 912 and a computer key toothed structure, which increases production costs. Secondly, when there are many authorized personnel, multiple computer keys need to be configured, which will significantly increase the cost of use. Utility Model Content

[0005] To address the aforementioned problems, the primary objective of this invention is to provide a lock that enables keyless unlocking and has low operating costs.

[0006] The second objective of this invention is to provide a lock set incorporating the aforementioned lock.

[0007] The third objective of this invention is to provide a door system equipped with the aforementioned lock set.

[0008] To achieve the first objective of this utility model, it provides a lock, including a handle and a locking unit. The handle has a latch, and the locking unit includes a housing and a sensing module. The housing has a slot, and the sensing module is installed inside the housing. The locking unit also includes a first NFC module, a motor, an energy storage module, a cam, and a first elastic element installed inside the housing. The energy storage module is electrically connected to the first NFC module and the motor. The housing also has a ball track communicating with the slot, and a ball assembly is provided in the ball track. The cam extends into the ball track and has a first ball groove. The cam has a locking position and an unlocking position. The latch has a second ball groove. When the latch is fully inserted into the slot, the second ball groove is located in the ball track. The motor can drive the cam to rotate to the unlocking position, causing the ball assembly to move into the first ball groove and out of the second ball groove. The first elastic element can force the cam to rotate to the locking position, causing the ball assembly to move out of the first ball groove.

[0009] As can be seen from the above design, after the computer key is authenticated, it can charge the energy storage module via the first NFC module. Once charged, the energy storage module drives the motor to control the cam to rotate, allowing some of the balls in the ball bearing assembly to enter the first ball bearing groove and disengaging the balls in the second ball bearing groove of the latch, thus releasing the ball bearings from the latch and unlocking the handle and lock unit. When the handle and lock unit need to be locked together, the balls enter the second ball bearing groove in the latch slot, and the cam resets under the action of the first elastic element, disengaging the balls from the first ball bearing groove, thus locking the handle and lock unit together. Therefore, the computer key does not need a toothed structure, and the lock does not need a lock cylinder structure that matches the toothed structure, reducing production costs. Furthermore, when multiple computer keys are required, usage costs are reduced, and the configuration method is simpler and more convenient.

[0010] In a preferred embodiment, the locking unit further includes a push block and a second elastic element, and the housing is also provided with a groove, in which the push block is slidably installed. The second elastic element can force the push block to slide into the ball track and push the tongue out of the ball track.

[0011] As can be seen from the above, the push block and the second elastic element can push the tongue out of the ball track when the ball assembly contacts the locking of the tongue, and can also prevent the cam from rotating to the locking position in advance under the action of the first elastic element after the tongue is pushed out of the ball track, thereby preventing the tongue from being unable to be inserted into the ball track and the handle and the locking unit from being unable to lock each other.

[0012] A further option is to have a first limiting part inside the chute and a second limiting part on the push block, with the first limiting part located between the ball track and the second limiting part.

[0013] As can be seen from the above, this design can prevent the push block from coming out of the groove and prevent the push block from moving excessively towards the slot entrance and exit, thereby reducing the difficulty of inserting the tongue into the slot.

[0014] Another further design is to provide a first guide angle at each end of the tongue near the ball assembly; and to provide a second guide angle at each end of the push block near the ball assembly.

[0015] As can be seen from the above, the design can reduce the difficulty of inserting the tongue into the ball track and the difficulty of inserting the push block into the ball track.

[0016] Another further design includes a magnet on the latch, and the locking unit also includes a reed switch installed inside the housing, which is electrically connected to the sensing module; when the latch is fully inserted into the slot, the magnet is located at the reed switch.

[0017] As can be seen from the above, the combination of magnets and reed switches enables the computer key and backend to clearly identify whether the lock is currently locked or unlocked.

[0018] Another preferred embodiment is that the energy storage module includes a capacitor and a circuit board, with the circuit board electrically connected to the capacitor, the first NFC module, and the motor, respectively.

[0019] As can be seen from the above, the capacitor is used to store and release charge, and the circuit board is used to coordinate the operation between the capacitor, the first NFC module, and the motor to ensure the reliability and stability of the motor drive.

[0020] A further design involves a cam rotating around its own axis of rotation and connected to the housing. The cam has a linkage block, and the motor's output shaft has a drive block that is linked to the linkage block. The housing has a limit block at the drive block, and the drive block can rotate to contact the limit block.

[0021] As can be seen from the above, this design creates a clutch structure between the cam and the motor, allowing the motor to automatically reset after driving the cam and keeping the cam in the unlocked position. It can only be reset and rotated to the locked position after the latch completes the locking action of inserting into the ball track.

[0022] A further improvement is that the handle also has a grip, the tongue extends from the grip, and there is a reinforcing rib between the fixed end of the tongue and the grip; the slot has a clearance opening that passes through itself, and when the tongue is inserted into the slot, the reinforcing rib passes through the clearance opening.

[0023] As can be seen from the above, the reinforcing ribs can enhance the structural strength of the tongue and prevent the handle and locking unit from failing to lock together due to deformation during the insertion of the tongue into the slot. The design of the clearance opening is to avoid the reinforcing ribs on the one hand, and to reduce the friction between the tongue and the slot on the other hand, so that the tongue can move more smoothly relative to the slot.

[0024] To achieve the second objective of this utility model, this utility model provides a lock set, including a computer key, wherein the lock set also includes the aforementioned lock; the computer key includes a sensing identification module and a second NFC module, the sensing identification module can be paired with the sensing module, and the second NFC module can be paired with the first NFC module.

[0025] As can be seen from the above, by configuring the above-mentioned lock kit and designing the computer key, the lock kit can effectively reduce production and usage costs, and reduce the difficulty of configuring the computer key.

[0026] To achieve the third objective of this utility model, this utility model provides a door system, including a door and a frame, with the door and frame rotatably connected, and further including the aforementioned lock set, with a handle mounted on the door and a lock unit mounted on the frame.

[0027] As can be seen from the above, by configuring the aforementioned lock kit, the door system can effectively reduce the cost of use. Attached Figure Description

[0028] Figure 1 This is a structural diagram of an existing lock.

[0029] Figure 2 This is an exploded view of an existing lock.

[0030] Figure 3 This is a structural diagram of an embodiment of the lock of this utility model.

[0031] Figure 4 This is a structural diagram of the lock embodiment of the present invention with some components omitted.

[0032] Figure 5 This is a structural diagram of the lock unit of an embodiment of the lock of this utility model.

[0033] Figure 6 This is a structural diagram of the lock unit of this utility model embodiment, omitting some components.

[0034] Figure 7This is a structural diagram of the outer shell of an embodiment of the lock of this utility model, with some components omitted.

[0035] Figure 8 This is a structural diagram of the handle of an embodiment of the lock of this utility model.

[0036] The present invention will be further described below with reference to the accompanying drawings and embodiments. Detailed Implementation

[0037] Lock Examples Reference Figure 3 The lock 100 includes a lock unit 1 and a handle 2, which can be locked together or separated. Generally, the lock unit 1 is mounted on the frame, and the handle 2 is mounted on the door, so that the door and the frame can be locked together, or the door can be opened relative to the frame.

[0038] Combination Figures 4 to 7 The locking unit includes a housing 11, a sensing module 12, a first NFC module 13, a motor 14, an energy storage module 15, a cam 16, a push block 17, a reed switch 18, a first elastic element 191, and a second elastic element 192. The housing 11 is provided with a slot 111, a ball track 112, a slide groove 113, and a limiting block 114; the slot 111 is connected to the ball track 112 and the slide groove 113 respectively, and the slot 111 and the slide groove 113 are distributed in the same direction; a part of the ball track 112 is connected between the slot 111 and the slide groove 113; a ball assembly 1121 is provided in the ball track 112, and the ball assembly 1121 includes multiple balls, which can roll in the ball track 112.

[0039] Combination Figure 6 The sensing module 12 is installed inside the housing 11. The sensing module 12 is used for computer key pairing to enable the computer key to authorize the unlocking of the lock 100. The sensing module 12 includes a first antenna 121 and a chip 122. The first antenna 121 is electrically connected to the chip 122. The first antenna 121 is used to receive signals emitted by the sensing and identification module inside the computer key and feed them back to the chip 122, so that the sensing and identification module of the computer key and the chip 122 can perform identity recognition and pairing.

[0040] The first NFC module 13 is installed inside the housing 11 and electrically connected to the energy storage module 15. The first NFC module 13 includes a second antenna 131, which is used to receive electromagnetic energy emitted by the second NFC module of the computer key, and then transmit the electromagnetic energy to the energy storage module 15 for energy storage, thereby charging the energy storage module 15.

[0041] Both the motor 14 and the energy storage module 15 are installed inside the housing 11, and the motor 14 and the energy storage module 15 are electrically connected, enabling the energy storage module 15 to supply power to the motor 14 to drive the output shaft of the motor 14 to rotate. The energy storage module 15 includes a capacitor 151 and a circuit board 152. The circuit board 152 is equipped with a charging and discharging circuit. This circuit stores the electromagnetic energy transmitted by the first NFC module 13 into the capacitor 151, and then supplies the stored electrical energy to the motor 14 to drive its output shaft. It should be noted that the technical means by which the energy storage module 15 receives and stores the electromagnetic energy transmitted by the first NFC module 13, and converts this electromagnetic energy into electrical energy to power the motor 14, are well known to those skilled in the art, and therefore will not be elaborated upon here.

[0042] A cam 16 is rotatably mounted within a housing 11 about its own axis of rotation, with a portion of the cam 16 extending into a ball track 112. The cam 16 has a first ball groove 161, and the cam 16 is located within the ball track 112, allowing the first ball groove 161 to engage with a ball. Preferably, there are two first ball grooves 161, located on opposite sides of the cam 16. One ball groove can rotate to communicate with the first end of the ball track 112, while the other ball groove can rotate to communicate with the second end of the ball track 112. The cam 16 has a locking position (e.g., Figure 4 , Figure 6 (as shown) and unlock position (rotated approximately 90° around the axis of rotation of cam 16 from the locked position).

[0043] Preferably, the cam 16 has a linkage block 162, and the output shaft of the motor 14 is provided with a drive block 141. The drive block 141 is linked with the linkage block 162, so that the motor 14 can drive the cam 16 from the locked position to the unlocked position. This design creates a clutch structure between the cam 16 and the motor 14, allowing the motor 14 to reset itself after completing the drive of the cam 16, and keeping the cam 16 in the unlocked position, waiting for the latch 21 to complete the locking action of inserting into the ball track 112 before it can be reset and rotated to the locked position.

[0044] Furthermore, the housing 11 is provided with a limiting block 114 at the drive block 141, and the drive block 141 can rotate to contact the limiting block 114. The limiting block 114 can prevent the drive block 141 from rotating excessively, thereby preventing the cam 16 from going past the unlock position, which would prevent the steel ball from entering the first ball groove 161.

[0045] The first elastic element 191 is connected between the cam 16 and the housing 11. When the lock 100 is locked, the first elastic element 191 forces the cam 16 to reset from the unlocked position to the locked position, so that the balls of the ball assembly 1121 are moved out of the first ball groove 161.

[0046] The push block 17 is slidably mounted within the slide groove 113, that is, along the direction of entering the slot 111, the push block 17 is located at the downstream end of the slot 111 and at the downstream end of the ball track 112. The push block 17 can slide into the ball track 112, thereby pushing the ball assembly 1121. A second elastic member 192 is connected between the push block 17 and the housing 11, and the second elastic member 192 is used to force the push block 17 to move into the ball track 112.

[0047] Preferably, the slide groove 113 is provided with a first limiting part 1131, and the push block 17 is provided with a corresponding second limiting part 171. The first limiting part 1131 is located between the ball track 112 and the second limiting part 171, so that when the second elastic member 192 forces the push block 17 to move into the ball track 112, it prevents the push block 17 from falling out of the slide groove 113 and prevents the push block 17 from moving excessively towards the entrance and exit of the slot 111, thereby reducing the difficulty of locking the locking unit 1 and the handle 2.

[0048] Furthermore, the pusher block 17 is provided with second guide angles 172 at both ends near the ball assembly 1121. The second guide angles 172 are preferably chamfered; of course, the second guide angles 172 can also be rounded. The design of the second guide angles 172 allows the pusher block 17 to push the ball assembly 1121 into the ball track 112 more smoothly when it enters the ball track 112, thereby allowing the ball assembly 1121 to enter the first ball groove 161 of the cam 16.

[0049] The reed switch 18 is electrically connected to the chip 122 of the sensing module 12 to assist the sensing module 12 in identifying whether the lock unit 1 and the handle 2 are in a locked or unlocked state.

[0050] Combination Figure 8The handle 2 has a tongue 21 and a handle 22, with the tongue 21 extending from the handle 22; the tongue 21 is perpendicular to the handle 22. The tongue 21 has a second ball groove 211. When the tongue 21 is fully inserted into the slot 111, the front end of the tongue 21 inserts into the ball track 112, so that the second ball groove 211 is located within the ball track 112, allowing the balls in the ball track 112 to enter the second ball groove 211. Preferably, the tongue 21 has first guide angles 212 at both ends near the ball assembly 1121. These first guide angles 212 are preferably chamfered; however, they can also be rounded. The design of the first guide angles 212 allows the tongue 21 to push the ball assembly 1121 into the ball track 112 more smoothly when it enters the ball track 112, reducing the difficulty of inserting the tongue 21 into the slot 111.

[0051] In addition, a magnet 213 is provided on the latch 21. When the latch 21 is fully inserted into the slot 111, the magnet 213 activates the reed switch 18. With the cooperation of the magnet 213 and the reed switch 18, the computer key and the backend can clearly identify whether the lock 100 is currently locked or unlocked. For example, when the latch 21 is fully inserted into the slot 111, the reed switch 18 detects the presence of the magnet 213 and sends a feedback to the sensing module 12. At this time, the sensing module 12 determines that the lock unit 1 and the handle 2 are locked together based on the first feedback signal from the reed switch 18. When the latch 21 retracts from the ball track 112, the reed switch 18 no longer detects the presence of the magnet 213 and sends a feedback to the sensing module 12. At this time, the sensing module 12 determines that the lock unit 1 and the handle 2 are separated based on the second feedback signal from the reed switch 18. When the lock unit 1 and the handle 2 are separated for a preset time, the backend can notify the user via the computer key that the lock 100 is currently unlocked, allowing the user to handle the situation promptly.

[0052] Furthermore, a reinforcing rib 214 is provided between the fixed end of the tongue 21 and the handle 22, while the slot 111 has a through-hole 1111. When the tongue 21 is inserted into the slot 111, the reinforcing rib 214 passes through the through-hole 1111. The reinforcing rib 214 can enhance the structural strength of the tongue 21 and prevent the handle 2 and the locking unit 1 from failing to lock together due to deformation of the tongue 21 during insertion into the slot 111. The through-hole 1111 is designed to allow the reinforcing rib 214 to pass through, and also to reduce the friction between the tongue 21 and the slot 111, so that the tongue 21 can move more smoothly relative to the slot 111.

[0053] The following is a brief description of the opening and closing process of lock 100: When unlocking the lock 100 is required, the computer key is brought close to the first antenna 121 of the sensing module 12 in the lock unit 1. This allows the sensing and identification module of the computer key to identify and pair with the chip 122 of the sensing module 12 to verify identity. When the identification and pairing are successful, the computer key is brought close to the first NFC module 13. The second NFC module inside the computer key then emits electromagnetic energy to the first NFC module 13, enabling the first NFC module 13 to transfer the received electromagnetic energy to the energy storage module 15 to charge the capacitor 151 of the energy storage module 15.

[0054] After the capacitor 151 is fully charged, the energy storage module 15 supplies power to the motor 14, causing the motor 14 to drive the cam 16 to rotate to a designated position (approximately 90°). At this time, the ball assembly 1121 has room to move, and the pusher 17 is pushed into the ball track 112 under the action of the second elastic member 192. During this process, the balls in the second ball groove 211 of the tongue 21 gradually exit the second ball groove 211 and gradually enter the first ball groove 161 of the cam 16, and the output shaft of the motor 14 resets itself.

[0055] When the pusher 17 enters the ball track 112 and pushes the latch 21 out of the ball track 112, the pusher 17 remains inserted into the ball track 112 under the action of the second elastic element 192. At this time, since the computer key is authorized to unlock the lock 100, and the second NFC module performs energy transmission to the first NFC module 13, the computer key and / or the backend can determine that the lock 100 has completed the start, and the magnet 213 is out of the detection range of the reed switch 18.

[0056] The push block 17 and the second elastic element 192 are designed to push the tongue 21 out of the ball track 112 when the ball assembly 1121 contacts the locking of the tongue 21. On the other hand, they can also prevent the cam 16 from rotating to the locking position in advance under the action of the first elastic element 191 after the tongue 21 exits the ball track 112, thereby preventing the tongue 21 from being unable to be inserted into the ball track 112 and the handle 2 and the locking unit 1 from being unable to lock each other.

[0057] When the lock 100 has been in the unlocked state for a preset time, the computer key can issue a prompt. When the lock 100 is locked, the control latch 21 is inserted into the slot 111 and into the ball track 112. During this process, the latch 21 pushes the push block 17 to compress the second elastic element 192 and pushes the push block 17 completely out of the ball track 112 until the second ball groove 211 is located in the ball track 112. At this time, the cam 16 is reset (reverses by about 90°) under the action of the first elastic element 191, causing the ball to exit the first ball groove 161 and enter the second ball groove 211. Thus, the locking process of the lock 100 is completed. At this time, the reed switch 18 detects the presence of the magnet 213 and feeds back to the sensing module 12.

[0058] After the locking process of lock 100 is completed, bring the computer key close to lock unit 1 again so that the sensing module 12 can send feedback to the computer key and the background that lock 100 is in the locked state.

[0059] In summary, by designing the lock 100 as described above, after the computer key is authenticated, it can charge the energy storage module 15 via the first NFC module 13. After charging, the energy storage module 15 drives the motor 14 to control the cam 16 to rotate, allowing some of the balls in the ball assembly 1121 to enter the first ball groove 161 and allowing the balls in the second ball groove 211 of the latch 21 to disengage from the second ball groove 211, thereby releasing the locking of the ball to the latch 21 and unlocking the handle 2 and the lock unit 1. When it is necessary to lock the handle 2 and the lock unit 1 together, the latch 21 inserts into the slot 111, allowing the balls to enter the second ball groove 211, and the cam 16 resets under the action of the first elastic element 191, causing the balls to disengage from the first ball groove 161, thereby completing the mutual locking of the handle 2 and the lock unit 1. Therefore, the computer key does not need to have a toothed structure, while the lock 100 only needs to have a lock cylinder structure that matches the toothed structure, which reduces production costs. At the same time, when multiple computer keys need to be configured, the usage cost can be reduced, and the configuration method is simpler and more convenient.

[0060] Lock kit examples The lock kit includes a computer key and the lock described in the above-described lock embodiment. The computer key includes a sensing and identification module and a second NFC module. The sensing and identification module can be paired with the sensing module of the lock unit of the lock, and the second NFC module can be paired with the first NFC module. By configuring the above-described lock kit and designing the computer key, the lock kit can effectively reduce production and usage costs and simplify the configuration of the computer key.

[0061] Door system implementation examples The door system includes a door, a frame, and the lock set described above; wherein the door and frame are rotatably connected, the handle of the lock set is mounted on the door, and the lock unit is mounted on the frame. By configuring the lock set described above, the door system can effectively reduce operating costs.

[0062] Finally, it should be emphasized that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. Locks, including: The handle is provided with a tongue; A locking unit, comprising a housing and a sensing module, wherein the housing is provided with a slot and the sensing module is installed inside the housing; Its features are: The locking unit also includes a first NFC module, a motor, an energy storage module, a cam, and a first elastic element installed inside the housing. The energy storage module is electrically connected to the first NFC module and the motor. The housing is also provided with a ball track communicating with the slot. The ball track is provided with a ball assembly. The cam extends into the ball track and is provided with a first ball groove. The cam has a locking position and an unlocking position. The tongue is provided with a second ball groove, and when the tongue is fully inserted into the slot, the second ball groove is located within the ball track; The motor can drive the cam to rotate to the unlock position, so that the ball assembly moves into the first ball groove and out of the second ball groove; The first elastic element can force the cam to rotate to the locked position, causing the ball assembly to move out of the first ball groove.

2. The lock according to claim 1, characterized in that: The locking unit further includes: The push block, the outer casing is also provided with a sliding groove, and the push block is slidably installed in the sliding groove; The second elastic element can force the pusher block to slide into the ball track and push the tongue out of the ball track.

3. The lock according to claim 2, characterized in that: The chute is provided with a first limiting part, and the push block is provided with a second limiting part. The first limiting part is located between the ball track and the second limiting part.

4. The lock according to claim 2, characterized in that: The tongue is provided with a first guide angle at each end near the ball assembly; The pusher block is provided with a second guide angle at each end near the ball assembly.

5. The lock according to claim 2, characterized in that: The latch is also provided with a magnet, and the locking unit also includes a reed switch installed in the housing, which is electrically connected to the sensing module; When the tongue is fully inserted into the slot, the magnet is located at the reed switch.

6. The lock according to claim 1, characterized in that: The energy storage module includes a capacitor and a circuit board, and the circuit board is electrically connected to the capacitor, the first NFC module, and the motor, respectively.

7. The lock according to any one of claims 1 to 6, characterized in that: The cam is rotatably connected to the housing around its own axis of rotation. The cam has a linkage block, and the output shaft of the motor is provided with a drive block. The drive block is linked with the linkage block. The outer casing is provided with a limiting block at the drive block, and the drive block can rotate to contact the limiting block.

8. The lock according to claim 7, characterized in that: The handle is also provided with a handle, the tongue extends from the handle, and a reinforcing rib is provided between the fixed end of the tongue and the handle; The slot has a clearance through which it passes, and when the tongue is inserted into the slot, the reinforcing rib passes through the clearance.

9. A lock set, including a computer key, characterized in that: The lock set also includes the lock as described in any one of claims 1 to 8; The computer key includes a sensing and identification module and a second NFC module. The sensing and identification module can be paired with the sensing module, and the second NFC module can be paired with the first NFC module.

10. A door system, comprising a door and a frame, wherein the door and the frame are rotatably connected, characterized in that, It also includes the lock set as described in claim 9, wherein the handle is mounted on the door and the lock unit is mounted on the frame.

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