Intelligent lock and lock body

Abstract

This invention provides a smart lock and lock body. When the driving component rotates forward, it drives the first lever to simultaneously lock the main bolt module and the auxiliary bolt module connected by the linkage mechanism. When the driving component rotates in the reverse direction, it not only drives the first lever to unlock the two modules, but also drives the second lever to unlock the oblique bolt module. This achieves automatic locking and unlocking of the multi-bolt structure, improving the convenience of using the smart lock. The lock body can also be mechanically unlocked using a mortise lock cylinder and a corresponding key, providing high security.

Description

Technical Field

[0001] This invention relates to the field of intelligent control technology, and in particular to an intelligent lock and lock body. Background Technology

[0002] The more types of latches a lock body has, the more complex its structure becomes, and locking and unlocking usually can only rely on manual operation, resulting in lower convenience and security. Summary of the Invention

[0003] The purpose of this invention is to provide a smart lock and lock body that offer both convenience in locking and unlocking and high security.

[0004] To solve the above-mentioned technical problems, the present invention provides a lock body, which includes a bolt module, a main bolt module, a secondary bolt module, and a control mechanism. The main bolt module and the secondary bolt module are connected by a linkage mechanism, which allows the main bolt module and the secondary bolt module to switch simultaneously between a locked position and an unlocked position. The control mechanism includes a drive component, a first lever, and a second lever. The drive component controls the first lever and the second lever to rotate circumferentially. When the first lever rotates forward, the main bolt module and the secondary bolt module are simultaneously in the locked position. When the first lever rotates in the reverse direction, the main bolt module and the secondary bolt module are simultaneously in the locked position. The secondary latch module is simultaneously in the unlocked position; at the same time, the second lever drives the latch of the latch module to move inward so that the latch module is in the unlocked position; the lock body is also provided with a mortise lock cylinder and a rotatable main lever, latch lever, and clutch lever. The mortise lock cylinder includes a pivot portion and a protrusion protruding from the side wall of the pivot portion. The protrusion has a lever that can rotate around the pivot portion. When the lever rotates around the pivot portion, it can push the main lever and the latch lever to rotate respectively, so as to drive the main latch module, the secondary latch module, and the latch module to switch between the locked and unlocked positions simultaneously. It can also push the clutch lever to disengage the drive component.

[0005] With the above structure, when the drive unit rotates in the forward direction, it can drive the first lever to move so that the main bolt module and the auxiliary bolt module connected by the linkage mechanism are simultaneously in the locked position. When the drive unit rotates in the reverse direction, it not only drives the first lever to unlock the above two modules, but also drives the second lever to unlock the oblique bolt module. This realizes automatic locking and unlocking of the multi-bolt structure, improving the convenience of using the smart lock. The lock body can also be mechanically unlocked by the mortise lock cylinder and the corresponding key, which provides high security.

[0006] Optionally, it also includes a deadbolt module, which is linked to the main latch module and the secondary latch module through the linkage mechanism. Under the drive of the linkage mechanism, the main latch module, the secondary latch module and the deadbolt module can switch between the locked position and the unlocked position simultaneously.

[0007] Optionally, the transmission assembly includes a gear set, and an arc-shaped protrusion is fixed on one gear surface of the last gear of the gear set. The inner end of the first shift block is sleeved on the gear shaft of the last gear, and the two ends of the arc-shaped protrusion extending therefrom abut against the first shift block to drive the first shift block to rotate in the forward and reverse directions.

[0008] Optionally, it also includes a reset switch disposed on the circuit board, wherein the arc-shaped protrusion has a detection end, and the reset switch determines whether the driving component is in the reset position by detecting the position of the detection end.

[0009] Optionally, it also includes a rotatable clutch trigger, wherein the clutch paddle is provided with a clutch transmission protrusion, and the two end sidewalls of the clutch trigger abut against the clutch transmission protrusion and the disengagement component of the drive component, respectively; when the paddle pushes the clutch paddle to rotate, the clutch transmission protrusion can push the clutch trigger to rotate, so as to drive the disengagement component to disengage the drive component.

[0010] Optionally, a third elastic element is connected between the clutch lever and the housing, and the third elastic element can provide a reset force for the clutch lever; a fourth elastic element is connected between the clutch trigger and the housing, and the fourth elastic element can provide a reset force for the clutch trigger.

[0011] Optionally, the latch module includes a latch, an actuating component, and a stop; the latch is connected to the actuating component, and the actuating component moves the latch to extend outward or retract inward relative to the lock body; the stop can switch between a stopped position and a non-stop position, and when the actuating component moves the latch outward to the locked position, the contact surface of the actuating component abuts against the stop surface of the stop in the stopped position to limit the latch from extending further outward, and the contact surface of the actuating component and / or the stop surface of the stop are provided with a buffer pad.

[0012] Optionally, the oblique tongue module includes a rolling element, which is rotatably mounted on the side of the actuating component that contacts the upper cover and / or the side of the actuating component that contacts the lower cover, so that the actuating component and the upper cover and / or the lower cover achieve rolling friction through the rolling element.

[0013] Optionally, the latch module includes a trigger, a first latch detection switch, and a second latch detection switch. The trigger is linked to the actuating component. The first latch detection switch and the second latch detection switch are arranged sequentially along the actuating path of the actuating component. When the actuating component drives the latch to extend outward to the locked position, the trigger triggers the first latch detection switch. When the actuating component drives the latch to retract inward back to the unlocked position, the trigger triggers the second latch detection switch.

[0014] Optionally, the lock also includes a magnetic attraction detection mechanism, which includes a magnet assembly fixed to the door frame or a fixed adapter; it also includes a Hall switch assembly, which includes a Hall switch bracket and a Hall switch PCB, wherein the Hall switch PCB is mounted in the lock body through the Hall switch bracket so that the Hall detection element on the Hall switch PCB can sense the magnetic field generated by the magnet assembly.

[0015] Optionally, the lock also includes a deadbolt structure, which includes a deadbolt body and a deadbolt lever. The deadbolt body extends through the lock body, and the deadbolt lever rotates to push the deadbolt body to move axially, thereby switching the deadbolt structure between a locked position and an unlocked position. The lock also includes a deadbolt detection switch, which is electrically connected to a PCB circuit board and has a detection part. When the deadbolt body is switched to the locked position, the deadbolt structure can release the detection part; when the deadbolt body is switched to the unlocked position, the deadbolt structure can press the detection part.

[0016] Optionally, the deadbolt lever has a toggle part, and the deadbolt body has a slot on the side facing the deadbolt lever. The toggle part is partially inserted into the slot. When the toggle part rotates to abut against the inner sidewall of the slot near the outer end, it can push the deadbolt body outward. It also includes an elastic component, one end of which is connected to the housing and the other end of which is connected to the deadbolt body. When the deadbolt body moves outward, the elastic component gradually stores energy. The deadbolt structure also includes a second elastic element. The first end of the second elastic element is connected to the housing and can rotate relative to it. The second end is connected to the deadbolt lever and can rotate relative to it. Within the rotatable angle range of the deadbolt lever, from one end position to the other end position, the second elastic element first gradually stores energy and then gradually releases it.

[0017] The present invention also provides a smart lock, including the lock body described above. Attached Figure Description

[0018] Figure 1 This is an exploded view of the lock body provided in the embodiment of the present invention;

[0019] Figure 2 yes Figure 1 Exploded view of the structure excluding the top and bottom covers;

[0020] Figure 3 yes Figure 1 Exploded view of the coaxial structure of the center-mounted lock cylinder and the positioning seat;

[0021] Figure 4 This is a schematic diagram of the lock body provided in this embodiment of the invention when all the bolts are in the locked state;

[0022] Figure 5 for Figure 4 A schematic diagram of the lock body including the lower cover;

[0023] Figure 6 yes Figure 5 A schematic diagram of the dorsal side;

[0024] Figure 7 This is a schematic diagram of the lock body provided in this embodiment of the invention when all the bolts are in the unlocked state;

[0025] Figure 8 yes Figure 7 A schematic diagram of the dorsal side;

[0026] Figure 9 This is a perspective view of a partial structure of the latch module in a lock body provided in an embodiment of the present invention;

[0027] Figure 10 yes Figure 9 Exploded view;

[0028] Figure 11 This is a perspective view of a portion of the structure of another embodiment of the latch module in the lock body provided by the present invention;

[0029] Figure 12 This is a partial top view of the tongue module and lock body assembled in the embodiment of the present invention;

[0030] Figure 13 This is a partial bottom view of the tongue module and lock body assembled in the embodiment of the present invention;

[0031] Figure 14 This is an assembly schematic diagram of the magnetic attraction detection mechanism in the lock body provided in the embodiment of the present invention;

[0032] Figure 15 This is an assembly schematic diagram of the magnetic attraction detection mechanism in the lock body provided in an embodiment of the present invention from another angle;

[0033] Figure 16 This is a cross-sectional view of the magnetic attraction detection mechanism in the lock body provided in the embodiment of the present invention in its usage state;

[0034] Figure 17 This is a schematic diagram of the Hall switch bracket for the magnetic attraction detection mechanism in the lock body provided in this embodiment of the invention;

[0035] Figure 18 yes Figure 17 A sectional view;

[0036] Figure 19 This is a bottom view of the magnetic attraction detection mechanism in the lock body provided in the embodiment of the present invention;

[0037] Figure 20 This is a top view of the magnetic attraction detection mechanism in the lock body provided in the embodiment of the present invention;

[0038] Figure 21 This is a schematic diagram of the structure of the deadbolt module in the lock body in the locked state according to an embodiment of the present invention;

[0039] Figure 22 yes Figure 21 A schematic diagram of the anti-locking tongue module from another angle;

[0040] Figure 23 This is a schematic diagram of the structure of the deadbolt module in the lock body in the unlocked state according to an embodiment of the present invention;

[0041] Figure 24 yes Figure 23 A schematic diagram of the structure of the detection switch;

[0042] Figure 25 yes Figure 21 A schematic diagram of the independent structure of the anti-locking tongue module;

[0043] Figure 26 yes Figure 23 A schematic diagram of the independent structure of the anti-locking tongue module;

[0044] Figure 27 yes Figure 25 and Figure 26 Schematic diagram of the structure of the anti-locking tongue pressure block;

[0045] Figure 28 yes Figure 25 and Figure 26 Schematic diagram of the structure of the anti-locking tongue block;

[0046] Figure 29 yes Figure 25 and Figure 26 Schematic diagram of the structure of the central locking tongue;

[0047] Figure 30 yes Figure 25 and Figure 26 A schematic diagram of the structure of the anti-locking tongue support.

[0048] Figure 1-30The annotations in the accompanying drawings are explained as follows:

[0049] 1. Main bolt module, 11. Main bolt, 12. Main bolt fixing plate, 13. First connecting post, 14. First elastic element, 15. Key paddle, 16. Main bolt switch contact, 17. Third connecting post, 18. Main bolt detection switch, 19. Main paddle;

[0050] 2. Slanted tongue module, 201. Slanted tongue, 2011. Outer slanted tongue, 2012. Inner slanted tongue, 2013. Elastic pin, 2014. Mounting sleeve, 202. Slanted tongue rod, 2021. First rod segment, 2022. Second rod segment, 2023. Third rod segment, 2024. Fourth rod segment, 2025. Fifth rod segment, 203. Slanted tongue push plate, 204. Slanted tongue paddle, 2041. Slanted tongue transmission protrusion, 205. Slanted tongue spring, 206. Spring pressing component, 207. Slanted tongue first detection switch, 208. Slanted tongue second detection switch, 209. Baffle plate, 210. Rolling element, 211. Trigger, 212. Stop component, 213. Buffer pad, 214. Guide component, 215. PCB module, 216. Slanted tongue limiting component, A. Action component, B. Recessed part, C. Groove, D. Riveting surface;

[0051] 31 First day hook, 32 Second day hook, 33 Fixing plate, 34 First slide groove, 35 Second slide groove, 36 Third slide groove, 3a Hook part, 3b Rod part;

[0052] 4 First locking tongue module, 41 Locking tongue, 42 Locking tongue fixing plate, 421 Fixing plate lever, 422 Fixing plate slide groove, 43 Fixing plate transmission component, 431 Transmission component guide block, 432 Transmission component slide groove, 433 Second connecting post;

[0053] 4' Second locking tongue module;

[0054] 5. Deadbolt module, 51. Deadbolt body, 511. Groove, 512. Strip hole, 513. Hook, 52. Deadbolt lever, 521. First protrusion, 522. Actuating part, 522a. Insertion hole, 523. Lever base, 53. Deadbolt pressure block, 531. Recessed groove, 532. Second protrusion, 54. Elastic component, 55. Second elastic component, 56. Deadbolt bracket, 561. Positioning hole, 562. First mounting groove, 563. Second mounting groove, 57. Deadbolt detection switch, 571. Detection part, 58. Mounting shaft, 59. Guide shaft;

[0055] 6. Magnetic attraction detection mechanism, 61. Magnet assembly, 62. Hall switch assembly, 63. Door frame, 64. Buckle plate, 641. Mounting opening, 65. Magnet, 66. Magnet bracket, 67. Hall switch bracket, 671. Protrusion, 672. PCB mounting recess, 673. First hook part, 6731. Hook head body, 674. Positioning protrusion, 675. Second hook part, 676. Wiring groove, 68. Hall switch PCB, 69. Hall detection element;

[0056] 71 Driving component, 72 Driving gear, 73 Reset switch, 74 Arc-shaped protrusion, 741 Detection end, 75 Disengagement component, 76 Clutch lever, 761 Clutch transmission protrusion, 762 Third elastic component, 77 Clutch trigger component, 771 Fourth elastic component, 78 First lever, 781 Protrusion, 782 Fifth elastic component, 79 Second lever;

[0057] 81 Lock cylinder fixing frame, 82 Lock cylinder fixing rod, 83 Fixing hole, 84 Upper positioning seat, 85 Lower positioning seat, 851 Positioning seat limit piece, 86 Positioning seat fixing piece, 87 Positioning seat fixing hole;

[0058] 9 Lock body, 91 Side strip, 911 Main bolt hole, 912 Slanted bolt hole, 913 Secondary bolt hole, 914 Deadbolt hole, 915 Hall switch bracket hole, 92 Top cover, 93 Bottom cover, 931 Hall switch positioning hole, 932 Hall switch slot;

[0059] 10 Mortise lock cylinder, 101 Rotating shaft, 102 Protrusion, 103 Toggle block, 104 Keyhole. Detailed Implementation

[0060] In the description of this application, it should be noted that the terms "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the sake of brevity in describing the technology, and do not indicate or imply that the device or element referred to must have a specific orientation, specific orientation structure, or operation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," etc., are only for the convenience of describing two or more structures or components that are structurally and / or functionally the same or similar, and do not indicate any special limitation on the order and / or importance.

[0061] To enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0062] This invention provides a lock body that can be applied to smart locks, security doors, garage doors, warehouse doors, cabinets, or other products. Without loss of generality, this article uses the application of the lock body to a smart lock as an example to introduce the technical solution and its technical effects.

[0063] The lock body 9 provided in this application may include a housing and components fixed relative to the housing. The lock body 9 mainly provides a mounting base for other components and protects the components. Specifically, the housing may further include two detachable covers, which together form a cavity for receiving other components. Each bolt of the lock body can extend from and retract into the cavity. Of course, the cavity has openings for each bolt to extend, and the number and position of the openings can be determined according to the number and position of each bolt.

[0064] The lock body 9 of this application may include a latch module 2, a main latch module 1, a secondary latch module, and a deadbolt module. The latch module 2 includes a latch rod 202 and a latch 201, which can be an integral structure, or they can be fixed together by an intermediate connecting component. Typically, one latch rod 202 is fixed to one latch. The main latch module 1 includes at least a main latch 11 and a main latch fixing plate 12 fixed to the main latch. Similarly, the secondary latch module includes at least a secondary latch 41 and a secondary latch fixing plate 42 fixedly connected to the secondary latch. The number of main latches 11 fixedly connected to the same main latch fixing plate 12 and the number of secondary latches 41 fixedly connected to the same secondary latch fixing plate 42 can be one, two, or more.

[0065] The number of top and bottom hook modules can be one or two. This article shows that the top and bottom hook modules include a first top hook 31 and a second top hook 32. Each top and bottom hook includes a rod 3b and a hook 3a. The rod 3b extends along the length direction of the smart lock.

[0066] The present invention takes a bolt module 2, a main bolt module 1, two auxiliary bolt modules and two deadbolts as an example, with two main bolts fixed on each main bolt fixing plate 12 and two auxiliary bolts 41 fixed on each auxiliary bolt fixing plate 42, and continues to introduce the technical solution and technical effect of this paper.

[0067] In this invention, at least the main latch module 1 and the secondary latch module are connected by a linkage mechanism among the main latch module 1, the secondary latch module, and the deadbolt module. Driven by this linkage mechanism, the main latch module 1 and the secondary latch module can simultaneously switch between locked and unlocked positions; that is, under the action of the linkage mechanism, the main latch module 1 and the secondary latch module can be simultaneously in the locked position and simultaneously in the unlocked position. The lock body in this invention includes a drive component, a transmission assembly, a first lever 78, and a second lever 79. Both the first lever 78 and the second lever 79 can rotate circumferentially with the final stage transmission component of the transmission assembly.

[0068] The driving component can be driving component 71, and the transmission assembly can be a gear set. The gear mechanism can have multiple gear stages. Of course, the structure of the driving component and the transmission assembly is not limited to the motor and gear set mentioned above; other components that can perform the same function can also be used. This invention takes driving component 71 as the driving component and gear set as the transmission assembly as an example to further introduce the technical solution and technical effects. The last stage gear is defined as the final stage gear, i.e., the driving gear 72. The first shift block 78 and the second shift block 79 can both rotate circumferentially with the final stage gear of the gear set.

[0069] When the drive unit 71 drives the final gear to rotate in the forward direction, the first lever block 78 can abut against the main lock tongue fixing plate 12 of the main lock tongue module 1 and drive the main lock tongue fixing plate 12 to move outward, so that the main lock tongue module 1 and the auxiliary lock tongue module are simultaneously in the locked position. In this article, the direction in which the main lock tongue extends out of the housing is defined as outward. In this state, the rotation of the drive unit 71 is defined as forward rotation. Correspondingly, the reverse rotation mentioned later refers to the direction opposite to the forward direction. For example, if the forward direction is clockwise, the reverse direction is counterclockwise, and vice versa.

[0070] When the drive unit 71 drives the final stage gear to rotate in the opposite direction, the first lever 78 can drive the main latch fixing plate 12 to move inward, so that the main latch module 1 and the auxiliary latch module are simultaneously in the unlocked position; at the same time, the second lever 79 drives the oblique latch rod 202 of the oblique latch module 2 to move inward, so that the oblique latch module 2 is in the unlocked position.

[0071] As can be seen from the above description, in the lock body provided by the present invention, when the driving member 71 rotates in the forward direction, it can drive the first lever 78 to move so that the main latch module 1 and the auxiliary latch module connected by the linkage mechanism are simultaneously in the locked position. When the driving member 71 rotates in the reverse direction, it not only drives the first lever 78 to unlock the above two modules, but also drives the second lever 79 to unlock the oblique latch module 2. This realizes automatic locking and unlocking of the multi-latch structure and improves the convenience of using the smart lock.

[0072] In one specific example, the lock body also includes a deadbolt module. This deadbolt module is linked to the main bolt module and the auxiliary bolt module via a linkage mechanism. Driven by this linkage mechanism, the main bolt module, the auxiliary bolt module, and the deadbolt module can simultaneously switch between the locked and unlocked positions. In other words, the main bolt module, the auxiliary bolt module, and the deadbolt module are connected by the linkage mechanism and can simultaneously be in the locked and unlocked positions.

[0073] There are multiple ways to achieve the linkage mechanism of the main locking tongue module 1, the auxiliary locking tongue module and the deadbolt module. One linkage mechanism will be described in detail later.

[0074] In one specific embodiment, a rotating shaft is fixed to the lower cover of the lock body. The rotating shaft can be riveted to the lower cover of the lock body. Both the final gear and the first lever can rotate around the rotating shaft. Ideally, the final gear and the first lever 78 are coaxial and rotate in a circumferential direction. The main latch fixing plate 12 of the lock body has a guide hole extending in a first direction. The rotating shaft of the final gear extends at least partially into the guide hole. The attached figure shows a specific embodiment where the guide hole is a through hole and the rotating shaft of the final gear passes through the through hole. This structure is convenient for installation, and the guide hole and the rotating shaft are not easily separated. The main latch fixing plate 12 reciprocates between the locked position and the unlocked position under the guidance of the rotating shaft and the guide hole, wherein the first direction is parallel to the extension and retraction direction of the main latch.

[0075] In the above embodiments, when the main lock tongue is extending and retracting, the main lock tongue fixing plate 12 can only move along the extension direction of the guide hole, which helps to keep the movement direction of the main lock tongue constant, so that the main lock tongue can be smoothly inserted into the lock hole of the door frame, improving the flexibility of the mechanism. In addition, the locking and unlocking angles in this structure are relatively small and the speed is fast.

[0076] In addition to using the driving component 71 described in this invention to drive the first lever 78 to move the main lock tongue fixing plate 12 for locking and unlocking, the smart lock in this invention can also be locked and unlocked using a key, i.e., it is equipped with a key lever 15.

[0077] In this invention, the inner end of the first lever 78 can be circumferentially limited with the final stage gear. For example, the inner end of the first lever 78 is installed on the gear shaft of the final stage gear and limited with the final stage gear by a limiting component. A specific structural form of the limiting component is described in detail below. The outer end of the first lever 78 has a protrusion 781 that inserts into the main latch fixing plate 12. One end of the elastic element of the main latch module 1 is fixed to the protrusion 781, and the other end is fixed to the lower cover of the lock body. The elastic element is used to provide the restoring force for the main latch module to return to the unlocked position. The elastic element can be a small and high-torque first elastic element 14, or it can be a disc spring or other elastic element.

[0078] Specifically, when the transmission assembly is a gear set, an arc-shaped protrusion 74 is fixed to one gear face of the last stage gear. The inner end of the first lever 78 is sleeved on the gear shaft of the last stage gear. The two ends of the arc-shaped protrusion 74 abut against the first lever 78 to drive the first lever 78 to rotate in both directions. When the last stage gear rotates clockwise, the first end of the arc-shaped protrusion 74 abuts against the first lever 78 and pushes the first lever 78 to rotate. Consequently, the first lever 78 abuts against the main locking tongue fixing plate 12 and pushes the main locking tongue fixing plate 12 to move to the right. The main locking tongue fixing plate 12 drives the main locking tongue to retract into the housing. When the last stage gear rotates counterclockwise, the second end of the arc-shaped protrusion 74 abuts against the first lever 78 and pushes the first lever 78 to rotate. Consequently, the first lever 78 abuts against the main locking tongue fixing plate 12 and pushes the main locking tongue fixing plate 12 to move to the left, so that the main locking tongue extends out of the housing, thus achieving locking.

[0079] The arc-shaped protrusion can be integrally machined with the final stage gear, or the two can be machined separately and assembled into a whole.

[0080] Of course, the connection method between the first shift block 78 and the final gear is not limited to the above description. It can also be in other ways, such as the first shift block 78 being directly fixed to the final gear.

[0081] In one embodiment, the main locking tongue fixing plate 12 is provided with a through hole, the protrusion 781 is inserted into the through hole, and the size of the through hole along the rotation direction is greater than the radial size of the protrusion 781. The protrusion 781 can be in the form of a rolling sleeve.

[0082] To improve control accuracy, the lock body of this invention may further include a reset switch 73 mounted on a circuit board. The circuit board installed inside the lock body can be electrically connected to each detection sensor and can control the electrical components in the lock body to perform related actions, such as controlling the operation of motors and other driving components. The arc-shaped protrusion 74 has a detection end 741. The reset switch determines whether the motor (driving component) is in the reset position by detecting the position of the detection end 741. The reset position of the final gear is located at the midpoint of the two ends of the drive, resulting in the shortest locking and unlocking stroke and consistent locking and unlocking speeds. The reset switch can be a contact-type position switch. When the detection end contacts the reset switch, it is considered that the final gear is in the reset position. During the process of the final gear rotating to the reset position, the first lever 78 does not rotate and remains in the locked or unlocked position.

[0083] In one specific example, the lock body also includes a latch push plate 203 and a latch lever 204 installed on the lock body 9 of the smart lock. The latch push plate 203 reciprocates along the length of the smart lock. The first lever 78 and the second lever 79 are located on both sides of the final gear. The second lever 79 pushes the latch lever 204 to rotate relative to the lock body 9 through the push plate. The latch lever drives the latch module 2 to move inward.

[0084] The first lever 78 and its connected transmission structure, and the second lever 79 and its connected transmission structure for unlocking the latch are located on both sides of the gear. This greatly optimizes the internal structure of the smart lock, achieving flexible movement of each component while maintaining a compact structure. The second lever 79 can be integrated with the final gear, or it can be a separate structure, with the two fixedly connected by an intermediate component.

[0085] The tongue module 2 may also include a tongue spring 205 to provide restoring force; other structures can be found in other materials.

[0086] As mentioned above, there are two top and bottom hook modules, each including two top and bottom hooks that reciprocate along the length of the smart lock. These are defined as the first top and bottom hook 31 and the second top and bottom hook 32. They are symmetrical about the transverse center plane of the main latch module. Each top and bottom hook has a rod portion 3b and a hook portion 3a fixedly connected to the rod portion 3b. The linkage mechanism includes two first connecting posts 13 and two first sliding grooves 34. One is fixed to the main latch fixing plate 12, and the other is fixed to the rod portion of the two top and bottom hooks. The two first connecting posts 13 are respectively inserted into and slidably fitted inside the first sliding grooves 34 of the two top and bottom hooks. In this paper, the first top and bottom hooks 31 and the second top and bottom hooks 32 are both provided with first sliding grooves 34, and the main latch fixing plate 12 is provided with two first connecting posts 13 that respectively cooperate with the two first sliding grooves 34.

[0087] When the main latch fixing plate 12 moves toward the locked position, under the constraint of the first connecting post 13 and the first slide groove 34, the two top and bottom hooks extend outward along the length direction; when the main latch fixing plate 12 moves toward the unlocked position, under the constraint of the first connecting post 13 and the first slide groove 34, the two top and bottom hooks retract inward along the length direction.

[0088] The linkage mechanism in this invention also includes a fixed plate transmission component 43, with a transmission component guide block 431 at one end passing through the secondary lock tongue module's secondary lock tongue fixing plate 42. The fixed plate transmission component 43 is rotatably connected to the lock body 9 via a first rotating shaft. The transmission component guide block 431 can be a riveted shaft, or it can be a shaft of other structures. To avoid affecting the extension and retraction of the secondary lock tongue, a fixed plate groove 422 of a predetermined length extending in the extension / retraction direction can be provided on the secondary lock tongue fixing plate 42. The transmission component guide block 431 of the secondary lock tongue lever slides inside this fixed plate groove 422. That is, without affecting the reciprocating movement of the secondary lock tongue fixing plate 42, the fixed plate groove 422, in conjunction with the transmission component guide block 431, also guides the movement of the secondary lock tongue fixing plate. The length of the fixed plate groove 422 can be determined according to the specific moving distance of the secondary lock tongue. The fact that the length of the groove is not disclosed herein will not prevent those skilled in the art from understanding and implementing the technical solutions described herein.

[0089] In this invention, the fixed plate transmission component 43 is rotatably connected to the deadbolt and the deadbolt via a second rotating shaft. The axial direction of the second rotating shaft is parallel to the axial direction of the first rotating shaft, and the axial directions of the first and second rotating shafts are perpendicular to the plane of motion of the deadbolt and the deadbolt. The linkage mechanism also includes a sliding column 35 and a transmission component groove 432, one of which is disposed on the deadbolt fixing plate of the deadbolt module, and the other is disposed on the deadbolt rocker arm. The second rotating shaft is disposed between the first rotating shaft and the transmission component groove 432. One of the deadbolt and the deadbolt rod and the deadbolt rocker arm can be provided with a second connecting column, and the other with a second groove. The second connecting column is inserted into and slidably fitted inside the second groove to realize the rotation between the deadbolt rocker arm and the deadbolt, as long as it satisfies the requirement that the deadbolt drives the deadbolt module to rotate around the first rotating shaft. This paper shows that both the first deadbolt 31 and the second deadbolt 32 are provided with the second groove 35, and the deadbolt rocker arm is provided with the second connecting column 433 (equivalent to the aforementioned second rotating shaft). Of course, it is also feasible to set a second connecting post 433 on the two ground hooks and a second sliding groove 35 on the secondary lock tongue lever. The second connecting post 433 can be a riveted post.

[0090] When the top and bottom hooks extend outward along their length, they drive the secondary lock tongue lever to rotate around the transmission guide block 431 via the second rotating shaft. Simultaneously, under the constraint of the sliding column and the sliding groove, the secondary lock tongue lever drives the secondary lock tongue fixing plate to move toward the locking position. When the top and bottom hooks retract inward along their length, they drive the secondary lock tongue lever to rotate in the opposite direction around the transmission guide block 431 via the second rotating shaft. Simultaneously, under the constraint of the sliding column 35 and the transmission groove 432, the secondary lock tongue lever drives the secondary lock tongue fixing plate to move toward the unlocking position.

[0091] The lock body cover provided by the present invention is provided with at least one third connecting post 17, two of which are shown in the figure, arranged along the length direction of the smart lock. The top and bottom hooks are provided with a third sliding groove 36 that cooperates with the corresponding third connecting post 17. The third sliding groove 36 extends along the length direction of the smart lock. The third sliding groove 36 and the third connecting rod 17 are used to restrict the reciprocating movement of the top and bottom hooks along the length direction.

[0092] The lock body of this invention also includes a controller (not shown in the figure) and a first latch detection switch 207. The first latch detection switch 207 is used to detect the locked position of the latch module 2. When the door is closed to the inside of the door frame, the controller controls the drive unit 71 to rotate forward according to the latch module 2 being in the locked position. That is, when the door is closed to the inside of the door frame, the instruction for the drive unit 71 to drive the main latch, the secondary latch, and the deadbolt to the locked position comes from the latch module 2. When the first latch detection switch 207 detects that the latch module 2 is in the locked position, the controller sends a locking instruction to the drive unit 71, and the drive unit 71 rotates forward to drive the main latch, the secondary latch, and the deadbolt to the locked position. After successful locking, the drive unit 71 starts to rotate in the reverse direction, driving the final stage gear to reset. When the detection end 741 touches the reset switch 73, the drive unit 71 stops rotating.

[0093] Of course, when the door is closed to the inside of the door frame, the condition for triggering the forward rotation of the drive unit 71 is not limited to the latch module 2 being in the locked position; other conditions can also be added. For example, it can be determined based on the signal detected by the Hall switch installed on the lock body. When the Hall switch detects that the distance between the smart lock installed on the door and / or the lock body and the door strike plate is within a predetermined range, locking begins. Alternatively, it can be determined based on the mechanical latch installed on the smart lock. When the mechanical latch contacts the door strike plate and is compressed into the lock body, locking begins.

[0094] Of course, a main latch detection switch 18 can be further configured to detect whether the main latch is fully locked. The main latch detection switch 18 can be a non-contact sensor, such as a Hall sensor, or a contact sensor, such as a direct contact travel contactor.

[0095] Smart locks operate normally by means of electricity. In the event of a power outage or motor failure, the smart lock will be unable to be unlocked normally by means of password or fingerprint recognition. Therefore, a mechanical unlocking method is required to prevent accidents.

[0096] In this embodiment of the invention, the lock body includes a housing and a main bolt 11, a latch bolt 201, and a drive member 71 disposed inside the housing. The housing also contains a mortise lock cylinder 10, which includes a pivot portion 101 and a protrusion 102 protruding from the side wall of the pivot portion 101. The protrusion 102 contains a lever 103 that can rotate around the pivot portion 101. The housing also contains a rotatable main lever 19, a latch bolt lever 204, and a clutch lever 76. When the lever 103 rotates around the pivot portion 101, it can push the main lever 19 to rotate, thereby switching the main bolt 11 between the locked and unlocked states. It can also push the latch bolt lever 204 to rotate, thereby switching the latch bolt 201 between the locked and unlocked states. Furthermore, it can push the clutch lever 76 to disengage the drive member 71.

[0097] The housing includes a side strip 91, which has holes corresponding to the main locking tongue 11 and the oblique tongue 201. The main locking tongue 11 and the oblique tongue 201 can pass through the corresponding holes through the side strip 91. When they pass through the side strip 91, it is in the locked state. When they do not pass through the side strip 91, it is in the unlocked state.

[0098] The pivot 101 of the mortise lock cylinder 10 has a cylindrical structure with an arched protrusion 102 protruding from its side wall. The lever 103 is located at the axial center of the pivot 101 and the protrusion 102. That is, the part of the pivot 101 and the protrusion 102 is independently set to form the lever 103. The lever 103 can rotate around the pivot 101 axially so that the part protruding from the side wall of the pivot 101 rotates and pushes the main lever 19, the tongue lever 204 and the clutch lever 76. Therefore, the positions of the main lever 19, the tongue lever 204 and the clutch lever 76 should correspond to the positions of the lever 103 so that the lever 103 can abut against and push the three.

[0099] The rotation of the lever 103 is controlled by the key inserted into the mortise lock cylinder 10. Specifically, the top of the rotating shaft 101 of the mortise lock cylinder 10 is provided with a keyhole 104, and the corresponding key can be inserted into the rotating shaft 101 through the keyhole 104. When the key is turned, it can drive the lever 103 to rotate, thereby pushing the main lever 19, the latch lever 204 and the clutch lever 76, which in turn causes the drive member 71 to disengage and engage, allowing the main latch 11 and the latch 201 to switch between the locked and unlocked states. When the main latch 11 and the latch 201 are in the locked state, the lock body is in the locked state; when the main latch 11 and the latch 201 are in the unlocked state, the lock body is in the unlocked state.

[0100] In this embodiment, the lock body is a smart door lock, and the drive component 71 is a motor. When an unexpected situation such as power failure or motor failure occurs, the motor cannot operate normally and will jam the gears and other components of the latch, causing the latch to be locked. Since the motor usually has a large torque and a large locking force, it cannot be unlocked by mechanical means. Therefore, it is necessary to disengage the motor from the latch so that it no longer locks the latch, and then it can be unlocked by mechanical means.

[0101] This embodiment also includes a rotatable clutch trigger 77. The clutch paddle 76 is provided with a clutch transmission protrusion 761. The two end sidewalls of the clutch trigger 77 respectively abut against the clutch transmission protrusion 761 and the disengagement member 43 of the drive member 71. When the paddle block 103 pushes the clutch paddle 76 to rotate, the clutch transmission protrusion 761 can push the clutch trigger 77 to rotate, so as to drive the disengagement member 43 to disengage the drive member 71.

[0102] In this embodiment, the clutch lever 76 is a semi-circular ring structure and is sleeved on the outside of the rotating shaft 101 of the mortise lock cylinder 10. When the lever 103 rotates, the part of the lever 103 protruding from the rotating shaft 101 can abut against one end of the clutch lever 76 and push the clutch lever 76 to rotate around the rotating shaft 101. The outer wall of the clutch lever 76 also extends radially outward, and the extended part protrudes axially to one side and is provided with a clutch transmission protrusion 761. The clutch transmission protrusion 761 can abut against the clutch trigger 77.

[0103] In this embodiment, the clutch trigger 77 is a plate-shaped strip structure, with its middle part rotatably fixed to the housing. The side walls of the clutch trigger 77 at both ends abut against the clutch transmission protrusion 761 and the disengagement member 43, respectively. When the clutch transmission protrusion 761 pushes the clutch trigger 77 to rotate to the other side, the other end of the clutch trigger 77 can simultaneously push the disengagement member 43.

[0104] In this embodiment, the disengaging component 43 is a sliding block disposed on the driving component 71. The driving component 71 has a corresponding sliding groove that cooperates with it. When the disengaging component 43 is located at the first end of the sliding groove, the driving component 71 is in a locked state, and the main locking tongue 11 cannot be mechanically unlocked and retracted. When the disengaging component 43 is located in the middle or the second end of the sliding groove, the driving component 71 is in a disengaged state, and the main locking tongue 11 can be mechanically unlocked and retracted.

[0105] The clutch lever 103, clutch paddle 76, clutch trigger 77, and clutch release element 43 are all in their initial positions, meaning they are not rotating. The clutch release element 43 is located at the first end of the sliding groove, and the drive element 71 is in a locked state. When the key rotates the clutch lever 103 clockwise, the lever 103 pushes the clutch paddle 76 clockwise, causing the clutch transmission protrusion 761 to rotate as well. The clutch transmission protrusion 761 moves downward and pushes the clutch trigger 77 to rotate clockwise. The other end of the clutch trigger 77 then pushes the clutch release element 43 to slide in the sliding groove to the middle or the second end. At this time, the drive element 71 is in a disengaged state.

[0106] Furthermore, the positions where the clutch trigger 77 abuts against the clutch transmission protrusion 761 include the arc-shaped edge and the straight edge. In the initial position, the clutch transmission protrusion 761 abuts against the straight edge. When the clutch lever 76 rotates clockwise, the clutch transmission protrusion 761 slides relative to the straight edge and pushes the clutch trigger 77. When the clutch transmission protrusion 761 slides to the junction of the straight edge and the arc-shaped edge, the clutch trigger 77 has been pushed to rotate to a certain angle, thereby pushing the disengagement member 43 to disengage the drive member 71. Afterwards, when the clutch transmission protrusion 761 continues to slide on the arc-shaped edge, the angle of the clutch trigger 77 no longer changes, that is, the arc-shaped edge at this position is an arc with the same center as the rotating shaft 101.

[0107] As described above, during the disengagement and engagement of the drive unit 71, the key inserted into the mortise lock cylinder 10 only needs to be rotated by a small angle, which in turn drives the lever 103 to push the clutch lever 76 to rotate around the rotating shaft 101 by a small angle, thereby pushing the clutch trigger 77 to disengage the drive unit 71, which is highly convenient.

[0108] In this embodiment, the clutch trigger 77 has a hole in the middle, and the housing has a fixing post at the corresponding position. The clutch trigger 77 can be sleeved on the corresponding fixing post through the hole so as to rotate around the fixing post.

[0109] It is understood that in practical applications, the clutch lever 76, clutch trigger 77, and disengagement member 43 can also adopt other structures besides those mentioned above. This invention does not limit this, as long as the lever block 103 can push the clutch lever 76 to rotate a small angle, thereby pushing the clutch trigger 77 to disengage the disengagement member 43 from the drive member 71.

[0110] In this embodiment, a third elastic element 762 is connected between the clutch lever 76 and the housing, and the third elastic element 762 can provide a reset force for the clutch lever 76; a fourth elastic element 771 is connected between the clutch trigger 77 and the housing, and the fourth elastic element 771 can provide a reset force for the clutch trigger 77.

[0111] In this embodiment, the third elastic element 762 is a torsion spring. The two ends of the third elastic element 762 are fixed to the housing and the clutch transmission protrusion 761, respectively. When the lever 103 pushes the clutch lever 76 to rotate, the clutch transmission protrusion 761 rotates, causing the third elastic element 762 to start storing energy. When the lever 103 is reset by rotating the key in the opposite direction, the third elastic element 762 can release its elastic potential energy and apply a reset force to the clutch transmission protrusion 761, causing the clutch transmission protrusion 761 to drive the clutch lever 76 back to its initial position.

[0112] In this embodiment, the fourth elastic element 771 is also a torsion spring. The two ends of the fourth elastic element 771 are fixed to the housing and the clutch trigger 77, respectively. When the clutch transmission protrusion 761 pushes the clutch trigger 77 to rotate, the fourth elastic element 771 begins to store energy. When the clutch transmission protrusion 761 is reset by the action of the third elastic element 762, the fourth elastic element 771 can release elastic potential energy and apply a reset force to the clutch trigger 77, so that the clutch trigger 77 returns to its initial position.

[0113] Of course, the third elastic element 762 and the fourth elastic element 771 can also be other elastic structures. This invention does not limit them, as long as they can respectively drive the clutch lever 76 and the clutch trigger 77 to reset.

[0114] In this embodiment, the main latch 11 is disposed at one end of the main latch fixing plate 12. The main latch fixing plate 12 is also provided with a key paddle 15. The two sides of the key paddle 15 abut against the main paddle 19 and the protrusion 781, respectively. When the driving member 71 is in the disengaged state, the paddle block 103 can push the main paddle 19 to rotate. The main paddle 19 can push the key paddle 15 and then push the protrusion 781. The protrusion 781 drives the main latch fixing plate 12 to move, so that the main latch 11 switches between the locked state and the unlocked state.

[0115] In this embodiment, the main lever 19 is a plate-shaped strip structure with a hole in the middle. A fixing post is provided at the corresponding position of the housing. The main lever 19 is fitted with the fixing post through the hole to be rotatably connected to the housing. The first end of the main lever 19 is located on the rotation path of the lever 103, and the other end abuts against the key lever 15. The lever 103 and the key lever 15 are both located on the same side of the main lever 19. When the lever 103 rotates to a certain angle, the part of the lever 103 protruding from the pivot 101 can abut against one end of the main lever 19 located on the rotation path and push the main lever 19 to rotate, thereby causing the main lever 19 to push the key lever 15 to move.

[0116] In this embodiment, the key lever 15 is a plate-shaped structure fixed to the main lock tongue fixing plate 12. Its two side walls abut against the main lever 19 and the protrusion 781 respectively. When the main lever 19 pushes the key lever 15 to move to the other side, the key lever 15 can push the protrusion 781 and drive the main lock tongue fixing plate 12 to move together. The main lock tongue fixing plate 12 can then drive the main lock tongue 11 to switch between the locked state and the unlocked state.

[0117] In this embodiment, the protruding post 781 is a sliding block that protrudes from the gear connected to the drive member 71. The corresponding position of the main lock tongue fixing plate 12 is provided with a sliding groove that cooperates with it. When the gear rotates clockwise, the protruding post 781 is driven to slide downward until it abuts the inner wall below the sliding groove. As the gear continues to rotate, the protruding post 781 will push the main lock tongue fixing plate 12 to move downward, thereby driving the main lock tongue 11 to retract to the inner side of the side strip 91.

[0118] When the lock body experiences a power outage or motor failure, the drive component 71 will jam the gear, preventing the cam 781 from moving and thus preventing the main bolt 11 from retracting. However, after the drive component 71 is disengaged by the clutch lever 76, the drive component 71 and the gear no longer interfere with each other, and the cam 781 can move freely. Therefore, when the lever 103 is rotated by the key, it should first contact the clutch lever 76. After the clutch lever 76 disengages the drive component 71, the lever 103 then contacts the main lever 19, which allows the main bolt 11 to retract normally. That is, the contact position between the clutch lever 76 and the lever 103 is before that of the main lever 19, and the lever 103 can only contact the main lever 19 after the clutch lever 76 pushes the clutch trigger 13 to disengage the drive component 71.

[0119] The lever 103, main lever 19, key lever 15, main bolt fixing plate 12, and protrusion 781 are all in their initial positions, meaning the main bolt 11 is in the locked state. When the key drives the lever 103 to rotate clockwise, the lever 103 first pushes the clutch lever 76 to disengage the drive member 71. Then, the lever 103 continues to rotate clockwise to push the main lever 19, causing the main lever 19 to rotate counterclockwise. The other end of the main lever 19 then pushes the key lever 15 downward. As the key lever 15 moves downward, it can drive the main bolt fixing plate 12 to move together, simultaneously abutting and pushing the protrusion 781 downward, causing the main bolt 11 to retract to the inside of the side strip 91. At this time, the main bolt 11 is in the unlocked state.

[0120] In addition, in this embodiment, the key paddle 15 and the main lock tongue fixing plate 12 are rotatably connected. Specifically, the main lock tongue fixing plate 12 is provided with two fixing posts, and the key paddle 15 is provided with fixing holes and sliding grooves corresponding to the two fixing posts respectively. One end of the key paddle 15 is fixed to one fixing post of the main lock tongue fixing plate 12 through the fixing hole, and the other end is slidably connected to the other fixing post of the main lock tongue fixing plate 12 through the sliding groove. The contact positions of the key paddle 15 with the main paddle 19 and the protrusion 781 are on both sides of one end of the sliding groove. That is, when the key paddle 15 moves downward, it first pushes the protrusion 781, and then drives the main lock tongue fixing plate 12 to move together, preventing the protrusion 781 from being stuck by the corresponding sliding groove of the main lock tongue fixing plate 12.

[0121] In this embodiment, the main latch fixing plate 12 is also provided with a guide groove in the vertical direction, and a corresponding guide post is provided at the center of the gear. When the key lever 15 drives the main latch fixing plate 12 to move downward, the guide post can only slide in the guide groove of the main latch fixing plate 12 in the vertical direction. Together with the hole of the side strip 91 and the main latch 11, they limit the movement direction of the main latch fixing plate 12, so that the main latch 11 can only move in the vertical direction and retract to the side. Inside the side strip 91; of course, when the main latch 11 is in the unlocked state, it does not move completely into the side strip 91. The upper part of the main latch 11 is still inside the hole of the side strip 91, but does not extend out of the side strip 91. Therefore, when the main latch 11 extends out of the side strip 91 again, the guide post of the housing and the guide groove of the main latch fixing plate 12, as well as the hole of the main latch 11 and the side strip 5, can still jointly limit the main latch 11, so that it can only extend out of the side strip 91 in the vertical direction.

[0122] When the main lever 19 is rotated by the lever 103, the main bolt 11 can be fully retracted by the lever 103 rotating about 70 degrees. That is, the key inserted into the mortise lock cylinder 10 only needs to be rotated by a small angle to retract the main bolt 11, which is highly convenient.

[0123] It is understood that in practical applications, the main lever 19, key lever 15, main lock tongue fixing plate 12, protrusion 781, and corresponding gear can also adopt other structures besides those described above. This invention does not limit these structures, as long as each component can achieve the functions described above.

[0124] In this embodiment, a fifth elastic element 782 is also connected between the protrusion 781 and the housing, and the fifth elastic element 782 can provide a restoring force for the protrusion 781.

[0125] In this embodiment, the fifth elastic element 782 is a torsion spring. The two ends of the fifth elastic element 782 are fixed to the housing and the protrusion 781 respectively. For ease of description, the angle between the protrusion 781 and the gear shaft is defined as the first angle, the angle between the protrusion 781 and the gear shaft is defined as the second angle, and the average value of the first angle and the second angle is defined as the intermediate angle.

[0126] As the key lever 15 pushes the protruding post 781 to rotate from the first angle to the middle angle, the included angle between the two ends of the torsion spring gradually decreases, and the torsion spring gradually stores energy. That is, during this process, the protruding post 781 is resisted by the torsion spring. When the protruding post 781 is pushed to the middle angle, the included angle between the two ends of the torsion spring is the smallest, and the resistance experienced by the protruding post 781 is the greatest. When the protruding post 781 rotates from the middle angle to the second angle, the included angle between the two ends of the torsion spring gradually increases, and the torsion spring gradually releases energy. That is, during this process, the protruding post 781 is assisted by the torsion spring until the protruding post 781 rotates to the second angle.

[0127] In summary, the fifth elastic element 782 prevents the protrusion 781 from remaining in the position between the first and second angles, ensuring it remains stably positioned at both angles. This allows the main bolt 11 to remain stably in both the locked and retracted states. Specifically, when the main bolt 11 is switched from the locked to the retracted state by the key, even if the lever 103 rotates back to its original position with the key, the main bolt 11 remains in the retracted state under the action of the fifth elastic element 782. The main bolt transmission component 24, the main bolt fixing plate 12, and the main lever 19 also remain in their corresponding positions. The fifth elastic element 782 then rotates counterclockwise relative to its corresponding position. With this configuration, once the smart lock is mechanically unlocked by the key, the main bolt 11 remains in the retracted state, eliminating the need for repeated unlocking and offering greater convenience.

[0128] It is understood that in practical applications, due to the different installation positions of the fifth elastic element 782, the position where the protrusion 781 experiences the greatest resistance is not necessarily the middle angle described above. As long as the fifth elastic element 782 can store energy and then release energy when the protrusion 781 rotates from the first angle to the second angle, the fifth elastic element 782 can also be other elastic structures besides torsion springs. This invention does not limit these types of structures.

[0129] This embodiment also includes a first ground hook 31 and a second ground hook 32. The first ground hook 31 and the second ground hook 32 are respectively connected to a fixing plate 33 and a fixing plate 33. The main lock tongue fixing plate 12 is also provided with two first connecting posts 13. The fixing plate 33 and the fixing plate 33 are respectively provided with a first sliding groove 34 and a first sliding groove 34 corresponding to the first connecting posts 13. When the main lock tongue 11 switches between the locked state and the unlocked state, it can drive the two first connecting posts 13 to slide in the first sliding groove 34 and the first sliding groove 34 respectively, so that the first ground hook 31 and the second ground hook 32 switch between the locked state and the unlocked state respectively.

[0130] Among them, the first ground hook 31 and the second ground hook 32 are two locking tongues that extend and retract together with the main locking tongue 11. The shell also includes an upper cover 92 and a lower cover 93. The upper cover 92, the lower cover 93 and the side strip 91 are assembled together to form the shell. The upper cover 92 and the lower cover 93 are provided with side walls in the other three directions except for the side strip 91. After the two are assembled, they form the side walls of the shell. The main locking tongue 11 and the oblique tongue 201 both extend out of the shell from one side of the side strip 91, that is, from the top. The first ground hook 31 and the second ground hook 32 extend out of the shell from the left and right sides, respectively, perpendicular to the side strip 91. The shell is provided with holes on the left and right sides corresponding to the positions of the first ground hook 31 and the second ground hook 32.

[0131] It should be noted that in this embodiment, the first ground hook 31 and the second ground hook 32 are both hook-shaped structures. Their bottoms are fixed to the fixing plate 33 and the fixing plate 33, respectively. Alternatively, the first ground hook 31 and the second ground hook 32 are integrally formed with the fixing plate 33 and the fixing plate 33, respectively. The hooks of the first ground hook 31 and the second ground hook 32 are both oriented away from the side strip 91. When a part of the structure of the fixing plate 33 and the fixing plate 33 extends out of the side wall of the lower cover 93, the first ground hook 31 and the second ground hook 32 are in the locked state. When the fixing plate 33 and the fixing plate 33 do not extend out of the side wall of the lower cover 93, the first ground hook 31 and the second ground hook 32 are in the unlocked state. Unlike other locking tongues, the first ground hook 31 and the second ground hook 32 also extend out of the housing when in the unlocked state.

[0132] Both the fixing plate 33 and the fixing plate 34 are plate-shaped strip structures. Both the fixing plate 33 and the fixing plate 34 are provided with two guide grooves extending laterally. The housing is provided with four guide posts corresponding to each guide groove. The guide grooves of the fixing plate 33 and the fixing plate 34 cooperate with the guide posts of the housing so that the two can only slide in the lateral direction. The fixing plate 33 is also provided with a first sliding groove 34 inclined in the lower left / upper right direction. The main lock tongue fixing plate 12 is provided with a first connecting post 13 that cooperates with the first sliding groove 34 and the first sliding groove 34 respectively. The two first connecting posts 13 are respectively inserted into the first sliding groove 34 and the first sliding groove 34 and can slide within them.

[0133] The main lock tongue fixing plate 12, fixing plate 33 and fixing plate 33 are all in the initial position. At this time, the two first connecting posts 13 are located at the top of the first slide groove 34 and the first slide groove 34 respectively. The main lock tongue 11, the first ground hook 31 and the second ground hook 32 are all in the locked state. When the main lever 19 is pushed by the lever 103, which in turn pushes the main bolt fixing plate 12 downward, the two first connecting pins 13 and the main bolt fixing plate 12 move downward together. Since the main bolt fixing plate 12 does not change its lateral position when it moves downward, the two first connecting pins 13 also do not change their lateral position when they move downward. The fixing plate 33 can only move in the lateral direction. Therefore, when the two first connecting pins 13 slide in the first slide groove 34, they can push the fixing plate 33 to the right and to the left. When the main bolt 11 is fully retracted, the two first connecting pins 13 also move to the bottom of the first slide groove 34. The fixing plate 33 drives the first ground hook 31 and the second ground hook 32 to fully retract. At this time, the main bolt 11, the first ground hook 31 and the second ground hook 32 are all in the unlocked state.

[0134] As described above, when the lever 103 pushes the main lever 19 to rotate, causing the main bolt 11 to retract completely, the first ground hook 31 and the second ground hook 32 can retract accordingly. When the lever 103 is reset as the key rotates in the opposite direction, the main bolt fixing plate 12 is stopped in the corresponding position due to the action of the fifth elastic element 782. Therefore, the fixing plate 33 and the fixing plate 33 will also be stopped in the corresponding position, that is, the main bolt 11, the first ground hook 31 and the second ground hook 32 are all in the unlocked state.

[0135] It is understood that in practical applications, the fixing plate 33 and the fixing plate 33 can be other structures besides those described above. This invention does not limit them, as long as they can achieve the functions described above.

[0136] This embodiment also includes a secondary locking tongue 41 disposed within the housing, which is connected to a secondary locking tongue fixing plate 42. The lock body also includes a fixing plate transmission component 43 rotatably connected to the housing, which is rotatably connected to the fixing plate 33. The secondary locking tongue fixing plate 42 and the fixing plate transmission component 43 are respectively provided with corresponding fixing plate levers 421 and transmission component grooves 431. When the first ground hook 31 and the second ground hook 32 switch between the locked state and the unlocked state, they can respectively drive the fixing plate transmission component 43 to rotate, so as to drive the fixing plate levers 421 to slide in the transmission component grooves 431, so that the secondary locking tongue 41 switches between the locked state and the unlocked state.

[0137] Among them, the two secondary locking tongues 41 are two locking tongues that extend and retract together with the first ground hook 31 and the second ground hook 32. The side strip 91 of the housing is provided with holes corresponding to the secondary locking tongues 41. The secondary locking tongues 41 can pass through the corresponding holes through the side strip 91. When the two pass through the side strip 91, it is in the locked state. When the two do not pass through the side strip 91, it is in the unlocked state.

[0138] The fixed plate transmission component 43 is a plate-shaped strip structure, with holes at its first end. The housing has a transmission component guide block 432 at the corresponding position. The fixed plate transmission component 43 is rotatably connected to the transmission component guide block 432 through the holes at its first end. The middle part of the fixed plate transmission component 43 is fixed to the fixed plate 33 by fasteners. When the fixed plate 33 moves laterally, it can drive the fixed plate transmission component 43 to rotate around the transmission component guide block 432.

[0139] In this embodiment, the secondary locking tongue 41 is disposed at one end of the secondary locking tongue fixing plate 42. The secondary locking tongue fixing plate 42 is provided with a fixing plate toggle block 421, and the fixing plate transmission component 43 is provided with a corresponding transmission component groove 431. The fixing plate toggle block 421 can slide in the transmission component groove 431.

[0140] The secondary lock tongue fixing plate 42 is provided with a fixing plate groove 422 in the vertical direction that can cooperate with the transmission component guide block 432. When the secondary lock tongue 41 switches between the locked and unlocked states, the transmission component guide block 432 can only slide in the fixing plate groove 422 in the vertical direction. Together with the hole in the side strip 91 and the secondary lock tongue 41, they limit the movement direction of the secondary lock tongue fixing plate 42, so that the secondary lock tongue 41 can only move in the vertical direction and retract into the side strip 91. Of course, when the secondary locking tongue 41 is in the unlocked state, it has not completely moved into the side strip 91. The upper part of the secondary locking tongue 41 is still inside the hole of the side strip 91, but has not extended out of the side strip 91. Therefore, when the secondary locking tongue 41 extends out of the side strip 91 again, the transmission guide block 432 and the fixed plate slide groove 422, the secondary locking tongue 41 and the hole of the side strip 91 can still jointly limit the movement direction of the secondary locking tongue 41, so that it can extend out of the side strip 91 in the vertical direction.

[0141] The main locking tongue fixing plate 12, fixing plate 33, fixing plate 33, auxiliary locking tongue fixing plate 42, and fixing plate transmission component 43 are all in the initial position. At this time, the fixing plate toggle block 421 is located at the upper end of the transmission component slide groove 431, and the main locking tongue 11, the first ground hook 31, the second ground hook 32, and the auxiliary locking tongue 41 are all in the locked state. When the lever 103 pushes the main lever 19 to rotate, thereby pushing the main latch fixing plate 12 to move downward, the main latch fixing plate 12 drives the fixing plate 33 to move laterally. The fixing plate 33 then drives the fixing plate transmission component 43 to rotate clockwise or counterclockwise, causing the transmission component slide groove 431 to rotate clockwise or counterclockwise together. The auxiliary latch fixing plate 42 can only move in the vertical direction. Therefore, when the fixing plate lever 421 slides in the transmission component slide groove 431, it can push the auxiliary latch fixing plate 42 vertically downward. When the main latch 11, the first ground hook 31, and the second ground hook 32 are completely retracted, the fixing plate lever 421 also moves to the lower end of the transmission component slide groove 431. The auxiliary latch fixing plate 42 drives the auxiliary latch 41 to retract completely. At this time, the main latch 11, the first ground hook 31, the second ground hook 32, and the auxiliary latch 41 are all in the unlocked state.

[0142] As described above, when the lever 103 pushes the main lever 19 to rotate, causing the main bolt 11, the first ground hook 31, and the second ground hook 32 to retract completely, the secondary bolt 41 can retract accordingly. When the lever 103 is reset as the key rotates in the opposite direction, since the main bolt fixing plate 12, fixing plate 33, and fixing plate 33 are all stopped in the corresponding positions by the action of the fifth elastic element 782, the secondary bolt fixing plate 42 and the secondary bolt fixing plate 42 will also stop in the corresponding positions, that is, the main bolt 11, the first ground hook 31, the second ground hook 32, and the secondary bolt 41 all remain in the unlocked state.

[0143] It is understood that in practical applications, the secondary locking tongue fixing plate 42 and the fixing plate transmission component 43 can be other structures besides those described above. This invention does not limit these structures, as long as the above components can achieve the functions described above.

[0144] In this embodiment, the tongue module 2 includes a tongue 201, an action component A, and a stop component 212. As shown in the figure, the action component A includes a tongue rod 202 and a tongue limiting component 216. The tongue limiting component 216 is connected to the tongue rod 202. The tongue rod 202 and the tongue limiting component 216 can move together under external force, specifically by applying external force to the tongue rod 202 or the tongue limiting component 216 via a lever.

[0145] Of course, the structure of the actuating component A is not limited to this; any structure that can drive the tongue 201 to extend and retract and can abut against the stop 212 is acceptable.

[0146] Specifically, the action mode of the action component A can be movement, swinging or rotation, etc. In the figure, the action mode of the oblique tongue rod 202 and the oblique tongue limiter 216 is to move along the length direction (i.e., the X direction) of the oblique tongue rod 202.

[0147] The latch 201 is connected to the actuating component A. In the figure, both the latch 201 and the latch limiter 216 are connected to the latch rod 202. When the latch rod 202 and the latch limiter 216 move under external force, they cause the latch 201 to extend outward or retract inward relative to the lock body 9. The lock body 9 has a side strip 91 with a latch hole through which the latch 201 can extend to the outside of the lock body 9. When unlocking, the latch 201 needs to retract inward to the unlocking position. When the latch 201 is in the unlocking position, it is usually entirely inside the lock body 9. When locking, the latch 201 needs to extend outward to the locking position. When the latch 201 is in the locking position, it is at least partially outside the lock body 9.

[0148] A stop member 212 is arranged on one side of the movement path of the moving part A, and the stop member 212 can switch between a stopped position and a non-stop position. When the stop member 212 is switched to the stopped position, the stop member 212 at least partially blocks the movement path of the moving part A, thereby stopping the moving part A. When the stop member 212 is switched to the non-stop position, the stop member 212 is not in the movement path of the moving part A, and therefore does not affect the movement of the moving part A.

[0149] During normal locking and unlocking, the stop 212 is in the stop position. When the latch 201 needs to be reversed, the stop 212 is in the non-stop position. The reversal of the latch 201 is to adapt to different opening directions. When reversing the latch 201, it needs to extend outward to a position slightly further out than the locked position (called the reversing position). In other words, during normal locking and unlocking, the latch 201 only needs to move within a small range between the locked and unlocked positions, but during reversal, it needs to move within a larger range between the locked and reversing positions. Therefore, when reversing the latch 201, the stop 212 needs to be switched to the non-stop position, and after the reversal is completed, the stop 212 is switched back to the stop position.

[0150] When the stop 212 is in the stop position, and the actuating component A drives the tongue 201 to extend outward to the locked position, the contact surface of the actuating component A will abut against the stop surface of the stop 212, so that the tongue 201 can no longer extend outward, thus stabilizing in the locked position.

[0151] At least one of the contact surface of the moving part A and the stopping surface of the stop member 212 is provided with a buffer pad 213. That is, the buffer pad 213 can be provided on the contact surface of the moving part A alone, or on the stopping surface of the stop member 212 alone, or both can be provided with a buffer pad 213. The buffer pad 213 can be made of materials with sound absorption and noise reduction effects, such as silicone or cotton pad.

[0152] By setting the buffer pad 213, the contact noise can be effectively reduced when the contact surface of the action part A comes into contact with the stop surface of the stop part 212 each time the lock is closed. Therefore, the noise during the locking and unlocking process can be reduced and the quietness of the lock body can be improved.

[0153] In this embodiment, the latch module 2 further includes a latch spring 205 and a spring-pressing member 206. The latch spring 205 is sleeved around the outer periphery of the latch rod 202 and is positioned between the latch 201 and the spring-pressing member 206. When the latch rod 202 retracts inward or extends outward, the position of the spring-pressing member 206 remains unchanged. In the illustrated embodiment, the spring-pressing member 206 has a ring-shaped structure and is loosely sleeved around the outer periphery of the latch rod 202. Of course, the structure of the spring-pressing member 206 is not limited to a ring-shaped structure; any structure that can press against the latch spring 205 is acceptable.

[0154] During the process of the latch lever 202 and the latch limiter 216 retracting the latch 201 inward under the action of external force, the latch spring 205 is gradually compressed. After the external force is removed, the latch lever 202 and the latch limiter 216 move in the opposite direction under the elastic force of the latch spring 205, thereby causing the latch 201 to extend outward. It can be seen that with the aforementioned latch spring 205 and spring abutment 206, the lock body can automatically lock under the action of elastic force after unlocking, making the lock body more intelligent and easier to use. Of course, in some embodiments, the aforementioned latch spring 205 and spring abutment 206 may not be provided, and locking can be achieved by applying an external force in the opposite direction to the latch 201 or the latch limiter 216 to cause the latch 201 to extend outward.

[0155] In this embodiment, the oblique tongue module 2 also includes a trigger 211, which is linked with the action component A. In the figure, the trigger 211 is integrated on the oblique tongue limiting component 216 to achieve the linkage between the trigger 211 and the action component A.

[0156] With the trigger 211 provided, the latch module 2 also includes a first latch detection switch 207 and a second latch detection switch 208. Specifically, the first latch detection switch 207 and the second latch detection switch 208 can be integrated with the PCB module 215 installed inside the lock body 9. The trigger 211 can be located on the side of the latch limiter 216 near the PCB module 215, and the trigger 211 can protrude further from the PCB module 215 than the latch limiter 216.

[0157] Specifically, the first latch detection switch 207 and the second latch detection switch 208 are arranged sequentially along the movement path of the actuating component A. In the figure, the first latch detection switch 207 and the second latch detection switch 208 are arranged sequentially along the X direction. When the latch 201 extends outward to the locked position, the trigger 211 triggers the first latch detection switch 207. When the latch 201 retracts inward to the unlocked position, the trigger 211 triggers the second latch detection switch 208. After being triggered, the first latch detection switch 207 and the second latch detection switch 208 send signals to the controller of the PCB module 215, enabling the controller to determine the current position of the latch 201 based on the signal. This allows for precise control of the lock, improving the intelligence and control accuracy of the lock body.

[0158] In this embodiment, the oblique tongue 201 is riveted to one end (hereinafter referred to as the first end) of the oblique tongue rod 202. Specifically:

[0159] The oblique tongue 202 comprises a first segment 2021, a second segment 2022, and a third segment 2023, arranged sequentially along the length of the rod from its first end. The outer diameter of the second segment 2022 is smaller than that of the first and second segments 2021, thus forming a groove C on its outer periphery. The outer peripheries of the first and third segments 2021 and 2023 are knurled, with no limitation on the form of the knurling. The oblique tongue 201 is provided with a mounting sleeve 2014. When the oblique tongue 201 comprises an inner oblique tongue 2012 and an outer oblique tongue 2011, the mounting sleeve 2014 is positioned on the outer oblique tongue 2011, and can be integrally formed with it. The first rod segment 2021 and the third rod segment 2023 are interference-fitted with the inner hole of the mounting sleeve 2014. The mounting sleeve 2014 has a recessed portion B, which is formed by pressing after the mounting sleeve 2014 and the oblique tongue rod 202 are assembled. The recessed portion B is recessed into the groove C on the outer periphery of the second rod segment 2022.

[0160] This press-fit connection structure has high stability and a compact structure. Furthermore, the small gap between the latch 201 and the latch rod 202 after assembly makes it less prone to gap noise during the opening and closing of the lock.

[0161] In this embodiment, the oblique tongue limiting member 216 is riveted to the other end (hereinafter referred to as the second end) of the oblique tongue rod 202. Specifically:

[0162] The oblique latch 202 has a fourth segment 2024 and a fifth segment 2025, which are arranged sequentially from the second end of the oblique latch 202 along the length of the rod. The outer diameter of the fourth segment 2024 is smaller than the outer diameter of the fifth segment 2025, thus forming a riveting surface D at the junction of the fifth segment 2024 and the fifth segment 2025. The oblique latch limiting member 216 has a through hole through which it is rotatably fitted onto the outer periphery of the fourth segment 2024. A baffle 209 is connected to the end of the fourth segment 2024 away from the fifth segment 2025 to limit the oblique latch limiting member 216 between the baffle 209 and the riveting surface D.

[0163] This riveting connection structure has high stability and compact structure. After assembly, the inclined tongue limiter 216 can rotate relative to the inclined tongue rod 202. In this way, during the opening and closing process, the inclined tongue limiter 216 can adaptively adjust its angle to avoid interference with the upper cover 92, lower cover 93 or other components, which would cause problems such as poor opening and closing and excessive noise.

[0164] It should be noted that the assembly method of the oblique tongue 201 and the oblique tongue rod 202 is not limited to the above-mentioned press-fit connection structure, as long as they can be connected together in a limiting manner. The assembly method of the oblique tongue limiting part 216 and the oblique tongue rod 202 is not limited to the above-mentioned screw-fit connection structure, as long as they can be connected together in a limiting manner.

[0165] In addition, the structure of the oblique tongue 201 is not limited. As shown in the embodiment, the oblique tongue 201 can be provided with an outer oblique tongue 2011 and an inner oblique tongue 2012. The inner oblique tongue 2012 is rotatably assembled with the outer oblique tongue 2011 via an elastic pin 2013. That is to say, after assembly, the inner oblique tongue 2012 can rotate relative to the outer oblique tongue 2011. Other types of oblique tongue structures can also be used.

[0166] This embodiment, based on the above embodiment, incorporates a rolling element 210. The rolling element 210 is rotatably mounted on the side of the latch stop 216 near the upper cover 92 and / or the side of the latch stop 216 near the lower cover 93, allowing the actuating component A to achieve rolling friction with the upper cover 92 and / or the lower cover 93 via the rolling element 210. This reduces friction noise during the locking and unlocking process, further improving the lock's quietness.

[0167] Specifically, the rolling element 210 can be a roller, ball, etc., and the rotation direction of the rolling element 210 can be unidirectional, bidirectional, or multidirectional.

[0168] In this embodiment, the tongue module 2 is further provided with a guide member 214. The guide member 214 is fixedly installed and guides the moving part A to guide the moving part A to move along a predetermined path, thus preventing the moving part A from deviating from the predetermined path and causing impact noise. In the figure, the guide member 214 is a U-shaped block, and the tongue rod 202 of the moving part A passes through the U-shaped block. The inner wall of the U-shaped block guides the outer peripheral surface of the tongue rod 202 to move along the X direction. Of course, the structure of the guide member 214 can be flexibly adjusted according to the different structures of the moving part A and the different movement paths.

[0169] In addition, when the guide member 214 is provided, one end of the spring pressing member 206 can abut against the guide member 214, and the other end can abut against the oblique tongue spring 205. In this way, the guide member 214 can be used to limit the position of the spring pressing member 206 and prevent the oblique tongue spring 205 from getting stuck in the guide member 214.

[0170] In this embodiment, the stop member 212 switches between the stop position and the non-stop position through linear movement. This allows for rapid switching between the stop position and the non-stop position, resulting in a fast response when the lock body reverses the direction of the latch 201. In the figure, the stop member 212 moves along the Y-axis, and its direction of movement is perpendicular to the direction of movement of the latch 202. Of course, the stop member 212 can also switch between the stop position and the non-stop position through other forms of movement, such as rotation or swinging.

[0171] Specifically, a guide portion may be provided on the side of the stop member 212 near the upper cover 92 and / or the side near the lower cover 93. The guide portion engages with the guide adapter of the upper cover 92 or the lower cover 93 to guide the stop member 212 to move along a predetermined straight path. This can prevent the stop member 212 from deviating from the predetermined straight path and causing impact noise. The guide portion and the guide adapter may be a concave structure and a convex structure that is adapted to it, or a slider structure and a guide rail structure that is adapted to it.

[0172] This embodiment also includes an upper positioning seat 84 and a lower positioning seat 85 fixed to the housing. The lower positioning seat 85 includes a semi-cylindrical structure. The oblique tongue 204 and the clutch 76 are sleeved on the semi-cylindrical structure and can rotate coaxially with it, and are limited between the upper positioning seat 84 and the lower positioning seat 85.

[0173] The lower positioning seat 85 includes a hollow semi-cylindrical structure. The pivot portion 101 of the mortise lock cylinder 10 can be inserted into the center of the lower positioning seat 85. The inner sidewall of the lower positioning seat 85 extends axially upward to form an inner ring structure. The outer sidewall extends outward at least in two places and is provided with positioning seat fixing members 86 in the axial direction. The upper positioning seat 84 is provided with a plurality of positioning seat fixing holes 87 corresponding to each positioning seat fixing member 86. The upper positioning seat 84 can be sleeved and fixed to each corresponding positioning seat fixing member 86 through each positioning seat fixing hole 87. The positioning seat fixing member 86, and the inner bottom of the upper positioning seat 84 can abut the top of the inner ring structure of the lower positioning seat 85, so that a reserved space is formed between the upper positioning seat 84 and the lower positioning seat 85 on the outer side of the inner ring structure. The oblique tongue 204 and the clutch 76 are sleeved on the inner ring structure and set in the reserved space, and are limited and fixed by the upper positioning seat 84 and the lower positioning seat 85 to prevent the oblique tongue 204 and the clutch 76 from coming out from the upper and lower ends of the inner ring structure.

[0174] It is understood that the upper positioning seat 84 and the lower positioning seat 85 can be other structures besides those described above. The present invention does not limit them, as long as they can limit the oblique tongue paddle 204 and the clutch paddle 76 to a preset position, so that they can rotate relative to the rotating shaft 101 and be pushed to rotate by the paddle block 103.

[0175] In this embodiment, the outer sidewall of the lower positioning seat 85 also extends outward and upward in the axial direction to form a positioning seat limiting member 851. When the oblique tongue 204 is pushed and rotated to a certain angle by the pawl 103, the oblique tongue transmission protrusion 2041 of the oblique tongue 204 can abut against the positioning seat limiting member 851, preventing it from being pushed and rotated further. At this time, the oblique tongue transmission protrusion 2041 has pushed the oblique tongue limiting block 35 to make the oblique tongue 201 in the unlocked state, and the main pawl 21 has also pushed the key pawl 15 to make the main lock tongue 11 in the unlocked state.

[0176] As described above, when the key drives the lever 103 to rotate, causing the tongue transmission protrusion 2041 of the tongue lever 204 to abut against the positioning seat limit member 851, the main lock tongue 11, the tongue 201, the first ground hook 31, the second ground hook 32, and the auxiliary lock tongue 41 are all in the unlocked state. The lever 103 cannot continue to rotate, so the key cannot continue to rotate. When the key is held at this angle, the lock body is in the fully unlocked state, and the corresponding door can be opened freely, which is highly convenient.

[0177] Of course, the positioning seat limiter 851 can also be set at the same position as the upper positioning seat 84, which can also achieve the technical effect described above.

[0178] This embodiment also includes a lock cylinder fixing frame 81 and a lock cylinder fixing rod 82 fixed to the housing. The lock cylinder fixing frame 81 and the protrusion 102 of the mortise lock cylinder 10 are both provided with corresponding fixing holes 83. The lock cylinder fixing rod 82 can pass through the fixing holes 83 of both to fix them to the housing.

[0179] The lock cylinder fixing frame 81 is fixed to the upper cover 92 or lower cover 93 of the housing, and the lock cylinder fixing rod 82 is fixed to the side strip 91 of the housing. When the mortise lock cylinder 10 is disposed inside the lock cylinder fixing frame 81 and the lower positioning seat 85, and several fixing holes 83 of the mortise lock cylinder 10 and the lock cylinder positioning frame 81 are coaxial, the lock cylinder fixing rod 82 can pass through each fixing hole 83 to fix the mortise lock cylinder 10 inside the housing. In addition, one end of the fifth elastic member 782 is fixed to the lock cylinder fixing frame 81 to indirectly fix it to the housing, and the fifth elastic member 782 can slide relative to the lock cylinder fixing frame 81.

[0180] It is understood that the mortise lock cylinder 10 can also be fixed to the housing in other ways and structures besides those described above. This invention does not limit this, as long as the mortise lock cylinder 10 can be fixed to the preset position of the housing and achieve the functions described above.

[0181] This embodiment of the invention also includes a magnetic attraction detection mechanism, which comprises a magnet assembly 61 and a Hall effect switch assembly 62. The magnet assembly 61 is fixed to the door frame 63 by a snap-on plate 64. Of course, in other specific application scenarios, the magnet assembly 61 can be fixed to other fixing adapters, as long as it can maintain relative fixation.

[0182] The magnet assembly 61 includes a magnet 65 and a magnet bracket 66. The magnet 65 is embedded in the magnet bracket 66. The latch plate 64, which is fixed to the door frame 63, has an installation opening 641. The magnet bracket 66 is inserted into the installation opening 641 so that the magnet 65 is close to the Hall switch assembly 62. It is understood that the magnet 65 can be installed and fixed in different structural ways, and is not limited to being embedded in the magnet bracket 66.

[0183] The Hall switch assembly 62 includes a Hall switch bracket 67 and a Hall switch PCB (Printed Circuit Board) 5. The Hall switch PCB 68 integrates a Hall detection element 69, which is set inside the lock body 9 through the Hall switch bracket 67, so that the Hall detection element 69 on the Hall switch PCB 68 can sense the magnetic field generated by the magnet assembly 61.

[0184] When the door is closed, the Hall effect sensor 69 approaches the magnet 65, senses the magnetic attraction, and detects a signal. When the door is opened, the Hall effect sensor 69 moves away from the magnet 65, no longer senses the magnetic attraction, and therefore cannot detect a signal. Here, the Hall effect sensor 69 is preferably a surface-mount element, which has a high degree of integration.

[0185] To further ensure detection accuracy, the assembly relationship between the Hall switch bracket 67 and the side strip 9 of the lock body 9 can be further optimized.

[0186] Here, the first direction X is defined to be consistent with the extension and retraction direction of the lock tongue of the lock body; the second direction Y is defined to be consistent with the length direction of the side strip 9; and the third direction Z is defined to be perpendicular to both the first direction X and the second direction Y, that is, the third direction Z is consistent with the thickness direction of the lock body 9. It should be noted that the use of the above directional terms is only for clearly describing the relative positional relationship between the corresponding structures and does not constitute a limitation on the understanding of this scheme.

[0187] A Hall switch bracket hole 915 is provided on the side strip 9 of the lock body. The Hall switch bracket 67 includes a protrusion 671 extending along a first direction X. As shown in the figure, a portion of the Hall detection element 69 is placed in the protrusion 671 of the Hall switch bracket 67. Specifically, the protrusion 671 is adapted to the cross-sectional shape of the Hall switch bracket hole 915. The protrusion 671 can be inserted into the Hall switch bracket hole 915 on the side strip 9, so that the Hall detection element can be brought as close as possible to the magnet, ensuring detection accuracy. The protrusion 671 is approximately flush with the outer surface of the side strip 9, thus achieving both good detection accuracy and a good overall appearance.

[0188] Within a projection plane perpendicular to the third direction Z, the body of the Hall switch bracket 67 is bent to fully utilize the internal space of the lock body 9 to fulfill the corresponding functions.

[0189] The Hall switch bracket 67 has a PCB 672 on its body, which is located on the bracket body opposite to the protrusion 671. First hook portions 673 are provided on both side walls of the PCB 672, and the hook heads 6731 of the two first hook portions 673 are positioned opposite each other in the second direction Y to prevent the Hall switch PCB 68 from disengaging from the PCB 672. During assembly, the Hall switch PCB 68 can be installed in place with slight force, and disassembly and assembly operations can be performed without special tools.

[0190] In addition, the Hall switch bracket 67 has positioning protrusions 674 on both sides of the body in the third direction Z, which are used to adapt to the positioning holes opened on the upper cover and lower cover 93 of the lock body 9, respectively.

[0191] On the side surface of the Hall switch bracket 67 facing the lower cover 93, three positioning protrusions 674 are provided to be inserted and adapted to the three Hall switch positioning holes 931 on the lower cover 93, respectively. Similarly, on the side surface of the Hall switch bracket 67 facing the upper cover, one positioning protrusion 674 is provided to be inserted and adapted to the corresponding positioning hole on the lower cover.

[0192] It is understandable that the number and configuration of the positioning protrusions 674 can be selected according to different products. It should be understood that the most effective way to achieve reliable positioning and assembly is to use a relatively small number of positioning protrusions 674, rather than being limited to the arrangement of the positioning protrusions 674 at both ends of the body as shown in the figure.

[0193] The Hall switch bracket 67 has a second hook portion 675 extending toward the lower cover 93 of the lock body 9 for fitting with a Hall switch slot 932 provided on the lower cover 93 of the lock body 9.

[0194] The protruding structure 9 on the base cover can be used to press down the middle position of the Hall switch bracket 67, thus completing the reliable positioning of the Hall switch bracket 67.

[0195] In addition, the Hall switch bracket 67 has a wiring slot 676 on its body so that the signal line of the Hall switch PCB 68 can be installed in the wiring slot 676 and connected to one end of the controller (not shown in the figure).

[0196] This embodiment also includes a deadbolt module 5 installed inside the lock body 9. The lock body 9 is provided with a deadbolt hole 914. The deadbolt module 5 includes a deadbolt body 51 and a deadbolt lever 52. The deadbolt body 51 passes through the deadbolt hole 914. The deadbolt lever 52 can rotate to push the deadbolt body 51 to move axially, so that the deadbolt module 5 can switch between a locked position and an unlocked position. In the locked position, the deadbolt body 51 extends outside the lock body 9 by a preset distance, which is the deadbolt position of the lock body. In the unlocked position, the deadbolt body 51 retracts into the lock body 9, which is the deadbolt / unlock position of the lock body.

[0197] It also includes a deadbolt detection switch 57, which is electrically connected to the PCB circuit board to realize the transmission of detection signals and has a detection unit 571. When the deadbolt body 51 is switched to the locked position, the deadbolt module 5 can release the detection unit 571; when the deadbolt body 51 is switched to the unlocked position, the deadbolt module 5 can press the detection unit 571.

[0198] The present invention adds a deadbolt detection switch 57 to the lock body to detect the specific state of the deadbolt module 5. Specifically, when the detection part 571 is in the pressed state, the deadbolt detection switch 57 transmits a trigger signal to the PCB circuit board to determine that the deadbolt module 5 is in the locked state; when the detection part is in the released state, the deadbolt detection switch 57 transmits a release signal to the PCB circuit board to determine that the deadbolt module 5 is in the retracted state. This allows the user to understand the specific state of the deadbolt module 5 and the lock body in a timely manner, prevents user misoperation, and improves security and ease of use.

[0199] In this embodiment, a guide shaft 59 is provided inside the lock body 9, and a strip-shaped hole 512 extending axially is provided on the deadbolt 51. The guide shaft 59 is inserted into the strip-shaped hole 512 to provide guidance, so that the deadbolt 51 can only move axially. It can be understood that in practical applications, two guide blocks can also be provided inside the lock body 9, forming a guide groove between the two guide blocks. The deadbolt 51 is located in the guide groove, so that the deadbolt 51 can only move along the extension direction of the guide groove.

[0200] In this embodiment, the anti-locking tongue module 5 also includes an anti-locking tongue pressing block 53 that houses the anti-locking tongue lever 52. The anti-locking tongue lever 52 has a first protrusion 521 on its peripheral wall, and the anti-locking tongue pressing block 53 has a recessed groove 531 on its inner peripheral wall and a second protrusion 532 on its outer peripheral wall. The first protrusion 521 is inserted into the recessed groove 531, and the size of the recessed groove 531 is larger than the first protrusion 521. The anti-locking tongue lever 52 can rotate relative to the anti-locking tongue pressing block 53. The range of rotation angle is from the first protrusion 521 abutting against the inner wall of one end of the recessed groove 531 to the first protrusion 521 abutting against the inner wall of the other end of the recessed groove 531. When the first protrusion 521 rotates to abut against the inner wall of the recessed groove 531, the anti-locking tongue lever 52 can also push the anti-locking tongue pressing block 53 to rotate synchronously, so as to press or release the detection part 571 through the second protrusion 532.

[0201] In this embodiment, the locking tongue lever 52 drives the locking tongue pressing block 53 to rotate, thereby triggering or de-triggering the locking tongue detection switch 57. The inner circumferential wall of the locking tongue pressing block 53 has an annular groove 531, ensuring a period of idle travel during both triggering and de-triggering. Specifically, when the locking tongue module 5 switches from the locked position to the unlocked position, the locking tongue lever 52 drives the locking tongue body 51 to move inward. However, the presence of the annular groove 531 ensures that the locking tongue pressing block 53 remains in the initial position and does not rotate synchronously with the locking tongue lever 52. When the locking tongue lever 52 rotates to near the unlocked position, the first protrusion 521 abuts against the inner wall of the annular groove 531, and the locking tongue lever 52 drives the locking tongue pressing block 53 to rotate synchronously until... When the deadbolt module 5 is in the unlocked position, the second protrusion 532 presses against the detection part 571, triggering the deadbolt detection switch 57. Similarly, when the deadbolt module 5 switches from the unlocked position to the locked position, the deadbolt lever 52 drives the deadbolt body 51 to move outward. However, the presence of the annular recessed groove 531 ensures that the deadbolt pressing block 53 remains in position initially and does not rotate synchronously with the deadbolt lever 52. When the deadbolt lever 52 rotates to near the locked position, the first protrusion 521 abuts against the inner wall of the other end of the annular recessed groove 531. The deadbolt lever 52 drives the deadbolt pressing block 53 to rotate synchronously until the deadbolt module 5 is in the locked position. The deadbolt pressing block 53 then releases the detection part 571, releasing the trigger of the deadbolt detection switch 57.

[0202] In summary, in this embodiment, the structure of the deadbolt pressure block 53 can avoid problems such as the deadbolt module 5 not being in the unlocked position while the deadbolt detection switch 57 is already in the triggered state, or the deadbolt module 5 not being in the locked position while the deadbolt detection switch 57 has been detrimentalized, thus making the detection results more accurate and reliable.

[0203] It is understandable that in practical applications, the trigger element can have other structural forms besides the aforementioned anti-locking tongue pressure block 53. For example, the trigger element can be set on one side of the anti-locking tongue lever 52, with two transmission teeth on one side of the peripheral wall of the trigger element, which are in transmission cooperation with the first protrusion 521 of the anti-locking tongue lever 52. The distance between the two transmission teeth is greater than the width of the first protrusion 521, ensuring that there is a free stroke when triggering or de-triggering. The other side of the peripheral wall of the trigger element is provided with trigger teeth for pressing or releasing the detection part 571. This scheme also drives the anti-locking tongue pressure block 53 to rotate through the anti-locking tongue lever 52, thereby realizing the triggering or de-triggering of the anti-locking tongue detection switch 57.

[0204] In addition, in practical applications, besides rotating the trigger element through the anti-locking tongue block 52 to trigger or de-trigger the anti-locking tongue detection switch 57, the anti-locking tongue detection switch 57 can also be set at the axial inner end of the anti-locking tongue body 51. When the anti-locking tongue body 51 is switched to the locked position, the detection part 571 of the anti-locking tongue detection switch 57 is released through the anti-locking tongue body 51; when the anti-locking tongue body 51 is switched to the unlocked position, the anti-locking tongue body 51 presses against the detection part 571.

[0205] In this embodiment, the anti-locking tongue block 52 has a toggle part 522. The anti-locking tongue body 51 is provided with a slot 511 on the side facing the anti-locking tongue block 52. The toggle part 522 is partially inserted into the slot 511. When the toggle part 522 rotates to abut against the inner side wall of the slot 511 near the outer end, it can push the anti-locking tongue body 51 to move outward.

[0206] It also includes an elastic component 54, one end of which is connected to the lock body 9 and the other end to the deadbolt 51. When the deadbolt 51 moves outward, the elastic component 54 gradually stores energy. Therefore, when the lock body needs to be released from the deadbolt, the deadbolt 51 will gradually move inward under the restoring force of the elastic component 54, returning to the fully unlocked position, thus preventing the deadbolt 51 from remaining in the intermediate state.

[0207] The locking tongue 51 has a hook 513 on its peripheral wall for connecting to the elastic component 54, thereby improving the connection stability of the elastic component 54. In this embodiment, the elastic component 54 is specifically designed as a tension spring. However, in practical applications, the elastic component 54 can also be made of elastic rope or the like.

[0208] In this embodiment, one end of the elastic component 54 is connected to the lock body 9, which includes two cases: one is that the elastic component 54 is directly connected to the lock body 9; the other is that the elastic component 54 is connected to the fixing part, and the fixing part is fixed to the lock body 9, that is, the elastic component 54 is indirectly connected to the lock body 9. In this embodiment, the elastic component 54 is indirectly connected to the lock body 9, which will be described in detail later.

[0209] In addition, a pointed notch is provided on the inner sidewalls at both ends of the slot 511. When the deadbolt 51 is switched to the locked or unlocked position, the end of the toggle part 522 is exactly in the notch, which plays a limiting role and makes the position of the two more stable.

[0210] In this embodiment, the deadbolt module 5 further includes a second elastic element 55. The first end of the second elastic element 55 is connected to the lock body 9 and can rotate relative to it. The second end is connected to the deadbolt lever 52 and can rotate relative to it. Within the rotatable angle range of the deadbolt lever 52, from one end position to the middle position, the included angle between the two ends of the second elastic element 55 gradually decreases, and the second elastic element 55 gradually stores energy. That is, during this process, the deadbolt lever 52 is resisted by the second elastic element 55. When the deadbolt lever 52 rotates to the middle position, the included angle between the two ends of the second elastic element 55 is the smallest, and the deadbolt lever 52 is subjected to the greatest resistance. When the deadbolt lever 52 continues to rotate from the middle position, the included angle between the two ends of the second elastic element 55 gradually increases, and the second elastic element 55 gradually releases. That is, during this process, the deadbolt lever 52 is assisted by the second elastic element 55 until the deadbolt lever 52 is at the other end position.

[0211] As can be seen above, the second elastic element 55 can keep the deadbolt block 52 always in the two-end position. At the same time, under the action of the elastic element 54, the deadbolt block 52 is prevented from staying in the middle state and can only be stably in the two-end position. This ensures that the deadbolt module 5 can only be stably in the locked and unlocked positions, thereby improving the reliability of the lock body in this embodiment.

[0212] It is understandable that in practical applications, due to the different installation positions of the second elastic element 55, the position where the anti-locking tongue block 52 experiences the greatest resistance may not be exactly in the middle position. As long as the second elastic element 55 gradually stores energy and then gradually releases it during the process of the anti-locking tongue block 52 rotating from one end position to the other end position, it is sufficient.

[0213] In this embodiment, the lock body 9 is provided with a mounting shaft 58, and the first end of the second elastic member 55 is fitted onto the mounting shaft 58 and can rotate relative to it; the toggle part 522 is provided with a socket 522a, and the second end of the second elastic member 55 is inserted into the socket 522a and can rotate relative to it.

[0214] In this invention, the deadbolt module 5 also includes a deadbolt bracket 56, which is fixed to the lock body 9. The deadbolt lever 52, the deadbolt pressure block 53, and the deadbolt detection switch 57 are all installed on the deadbolt bracket 56. Specifically, the deadbolt bracket 56 is provided with a positioning hole 561. The first protrusion 521 and the actuating part 522 in the deadbolt lever 52 are distributed along the axial direction of the lever base 523. The deadbolt lever 52 passes through the positioning hole 561. The actuating part 522 is located between the deadbolt bracket 56 and the lock body 9. The side of the deadbolt bracket 56 facing the deadbolt body 51 is provided with a first mounting groove 562. The first mounting groove 562 is arc-shaped, and its opening end is provided with a limiting part. The actuating part 522 is located in the opening of the first mounting groove 562. The limiting part is used to limit the rotation range of the actuating part 522, so that the actuating part 522 can only rotate in the opening of the first mounting groove 562.

[0215] Both the deadbolt pressure block 53 and the deadbolt detection switch 57 are installed on the side of the deadbolt bracket 56 facing away from the deadbolt body 51. The side of the deadbolt bracket 56 facing away from the deadbolt body 51 is provided with a second mounting groove 563. The second mounting groove 563 is arc-shaped. The deadbolt pressure block 53 is installed in the second mounting groove 563. The second protrusion 532 is located in the notch of the second mounting groove 563, so that the second protrusion 532 can only rotate within the notch of the second mounting groove 563.

[0216] Furthermore, the mounting shaft 58 also passes through the deadbolt bracket 56, and the first end of the second elastic member 55 is limited between the deadbolt bracket 56 and the lock body 9 to prevent the second elastic member 55 from disengaging from the mounting shaft 58 and to improve the installation stability of the second elastic member 55. One end of the elastic member 54 is ring-shaped and is rotatably fitted onto the fixing post of the deadbolt bracket 56.

[0217] The smart lock provided by the present invention includes the lock body of any of the above embodiments, and therefore also has the above-mentioned technical effects of the lock body.

[0218] Similarly, smart devices with the lock body of this application also have the technical effects described above.

[0219] Other structural details regarding smart locks are not discussed in detail here; please refer to the current materials.

[0220] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A lock body, characterized in that: The lock body includes a housing, a latch module, a main latch module, a secondary latch module, two deadbolts, and a control mechanism. The main latch module and the secondary latch module are connected by a linkage mechanism. Driven by the linkage mechanism, the main latch module and the secondary latch module can switch between the locked position and the unlocked position simultaneously. The control mechanism includes a driving component, a first lever, and a second lever. The driving component can control the first lever and the second lever to rotate circumferentially. When the first lever rotates in the forward direction, the main latch module and the secondary latch module can be simultaneously positioned in the locked position. When the first lever rotates in the opposite direction, the main latch module and the secondary latch module can be simultaneously positioned in the unlocked position; at the same time, the second lever drives the latch of the latch module to move inward so that the latch module is in the unlocked position. The lock body is also provided with a mortise lock cylinder and a rotatable main lever, a tongue lever, and a clutch lever. The mortise lock cylinder includes a pivot part and a protrusion protruding from the side wall of the pivot part. The protrusion part is provided with a lever block that can rotate around the pivot part. When the lever rotates around the pivot, it can push the main lever and the oblique tongue lever to rotate respectively, so as to drive the main locking tongue module, the secondary locking tongue module and the oblique tongue module to switch between the locked position and the unlocked position at the same time. It can also push the clutch lever to disengage the drive component. The linkage mechanism includes two first connecting posts and two first sliding grooves. The main locking tongue module and each of the top and bottom hooks are inserted and slidably engaged through one of the first connecting posts and one of the first sliding grooves. When the main locking tongue module moves toward the locked position, the two top and bottom hooks extend outward along the length direction of the housing. When the main locking tongue module moves toward the unlocked position, the two top and bottom hooks retract inward along the length direction of the housing. The linkage mechanism also includes a fixed plate transmission component, which is rotatably connected to the lock body via a first rotating shaft and rotatably connected to one of the deadbolts via a second rotating shaft. The fixed plate transmission component and the secondary latch module are inserted and slidably engaged via a sliding post and a sliding groove. When the deadbolt extends outward or retracts inward along its length, the deadbolt drives the fixed plate transmission component to rotate around the first rotating shaft in the forward or reverse direction via the second rotating shaft. At the same time, under the constraint of the sliding post and the sliding groove, the fixed plate transmission component drives the secondary latch module to move toward the locked or unlocked position.

2. The lock body as described in claim 1, characterized in that: The lock body also includes a transmission assembly, which includes a gear set. An arc-shaped protrusion is fixed on one gear surface of the last gear of the gear set. The inner end of the first lever is sleeved on the gear shaft of the last gear. The two ends of the arc-shaped protrusion extending therefrom abut against the first lever to drive the first lever to rotate in the forward and reverse directions.

3. The lock body as described in claim 2, characterized in that: It also includes a reset switch disposed on the circuit board, wherein the arc-shaped protrusion has a detection end, and the reset switch determines whether the driving component is in the reset position by detecting the position of the detection end.

4. The lock body as described in any one of claims 1-3, characterized in that: It also includes a rotatable clutch trigger, the clutch paddle is provided with a clutch transmission protrusion, and the two end sidewalls of the clutch trigger abut against the clutch transmission protrusion and the disengagement component of the drive component, respectively; When the paddle pushes the clutch lever to rotate, the clutch transmission protrusion can push the clutch trigger to rotate, thereby driving the disengagement component to disengage the drive component.

5. The lock body as described in claim 4, characterized in that: A third elastic element is connected between the clutch lever and the housing, and the third elastic element can provide a reset force for the clutch lever; a fourth elastic element is connected between the clutch trigger and the housing, and the fourth elastic element can provide a reset force for the clutch trigger.

6. The lock body as described in any one of claims 1-3, characterized in that: The latch module includes a latch, an actuating component, and a stop component. The latch is connected to the actuating component, and the actuating component moves the latch to extend outward or retract inward relative to the lock body. The stop component can switch between a stopped position and a non-stop position. When the actuating component moves the latch outward to the locked position, the contact surface of the actuating component abuts against the stop surface of the stop component in the stopped position to limit the latch from extending further outward. The contact surface of the actuating component and / or the stop surface of the stop component are provided with a buffer pad.

7. The lock body as described in claim 6, characterized in that: The oblique tongue module includes a rolling element, which is rotatably mounted on the side of the actuating component that contacts the upper cover and / or the side of the actuating component that contacts the lower cover, so that the actuating component and the upper cover and / or the lower cover achieve rolling friction through the rolling element.

8. The lock body as described in claim 6, characterized in that: The latch module includes a trigger, a first latch detection switch, and a second latch detection switch. The trigger is linked to the actuating component. The first latch detection switch and the second latch detection switch are arranged sequentially along the actuating path of the actuating component. When the actuating component drives the latch to extend outward to the locked position, the trigger activates the first latch detection switch. When the actuating component drives the latch to retract inward back to the unlocked position, the trigger activates the second latch detection switch.

9. The lock body as described in any one of claims 1-3, characterized in that: It also includes a magnetic attraction detection mechanism, which includes a magnet assembly fixed to the door frame or a fixed adapter; it also includes a Hall switch assembly, which includes a Hall switch bracket and a Hall switch PCB, wherein the Hall switch PCB is mounted in the lock body through the Hall switch bracket so that the Hall detection element on the Hall switch PCB can sense the magnetic field generated by the magnet assembly.

10. The lock body as described in any one of claims 1-3, characterized in that: It also includes a deadbolt structure, which includes a deadbolt body and a deadbolt lever. The deadbolt body extends out of the lock body. The deadbolt lever can rotate to push the deadbolt body to move axially, so that the deadbolt structure can switch between the locked position and the unlocked position. It also includes a deadbolt detection switch, which is electrically connected to the PCB circuit board and has a detection part. When the deadbolt body is switched to the locked position, the deadbolt structure can release the detection part. When the anti-locking tongue is switched to the unlocked position, the anti-locking tongue structure can press against the detection part.

11. The lock body as described in claim 10, characterized in that: The anti-locking tongue block has a toggle part. The anti-locking tongue body has a slot on the side facing the anti-locking tongue block. The toggle part is partially inserted into the slot. When the toggle part rotates to abut against the inner side wall of the slot near the outer end, it can push the anti-locking tongue body to move outward. It also includes an elastic component, one end of which is connected to the housing and the other end of which is connected to the deadbolt. When the deadbolt moves outward, the elastic component gradually stores energy. The anti-locking tongue structure also includes a second elastic element. The first end of the second elastic element is connected to the housing and can rotate relative to it. The second end is connected to the anti-locking tongue lever and can rotate relative to it. Within the rotatable angle range of the anti-locking tongue lever, from one end position to the other end position, the second elastic element first gradually stores energy and then gradually releases it.

12. A smart lock, characterized in that: Includes the lock body described in any one of claims 1-11.

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