Smart lock body

Abstract

The present invention discloses a smart lock body, including a lock shell, a side plate, a tongue assembly, a main tongue assembly, a fork assembly, a clutch device and a pushing device. The tongue assembly includes a tongue, which can be retracted into the side plate under the pressure of the door frame; the main tongue assembly includes a main tongue, a first limiting portion limited by the tongue assembly, a second limiting portion and a locking portion; the clutch device is used to lock and release the main tongue assembly, including a first clutch, a second clutch and a spring therebetween, the first clutch being provided with a locking portion that cooperates with the locking portion on the main tongue assembly; the pushing device is used to push the first clutch so that the locking portion on the first clutch is disengaged from the locking portion on the main tongue assembly. The lock body of this structure has a simple structure, a small size, is safe and has a high degree of automation.

Description

Technical Field

[0001] The present invention relates to the technical field of smart locks, and in particular to a smart lock body. Background Art

[0002] The smart locks in the prior art mainly include semi-automatic smart locks and fully automatic smart locks. After the semi-automatic lock is closed, the door cannot be locked automatically. It needs to be locked manually (by a handle or a key). If the door closer forgets to lock the door manually, the illegal unlocker can use a simple method such as a card to illegally unlock the door. The panel outside the door of the fully automatic smart lock generally does not have a handle. It needs to touch the lock key or implement other control methods to lock it. If the door closer forgets to lock the door, the door lock will not be locked automatically. The illegal unlocker can also illegally unlock the door. Therefore, the smart locks in the prior art are inconvenient and unsafe. In addition, most of the smart locks in the prior art have a latch bolt assembly, a main tongue assembly, a safety tongue assembly, a fork assembly, a reduction gear assembly, and an electric control device in the lock body, which has a complex structure, many components, and a large lock body. At present, for European standard locks, there are strict restrictions on the size of the lock body, and the lock body size is small, and it is basically impossible to accommodate the above components in the lock body at the same time. Therefore, while reducing the size of the lock body and simplifying the structure, it is also necessary to ensure safety and a high degree of automation, which is the direction for further improvement of the smart lock body. Summary of the invention

[0003] The purpose of the present invention is to overcome the defects of the prior art and provide a smart lock body with simple structure, small size, safety and high automation.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] The smart lock body of the present invention includes: a lock shell, which is composed of a front shell and a bottom shell; a side plate, which is located on one side of the front shell and the bottom shell; a tongue assembly, which includes a tongue, and the tongue can be retracted into the side plate under the pressure of the door frame; a main tongue assembly, which is used to lock the door body, including a main tongue, a first limiting portion restricted by the tongue assembly, a second limiting portion and a locking portion; a fork assembly, which includes a shift arm, and the shift arm can shift the second limiting portion on the main tongue assembly to retract the main tongue into the side plate; a clutch device, which is used to lock and release the main tongue assembly, including a first clutch member, a second clutch member and a spring therebetween, and the first clutch member is provided with a locking portion that cooperates with the locking portion on the main tongue assembly; a pushing device, which is used to push the first clutch member to make the locking portion on the first clutch member disengage from the locking portion on the main tongue assembly.

[0006] Furthermore, the tongue-bumping assembly also includes a tongue-bumping limiting portion that cooperates with the first limiting portion on the main tongue assembly, a guide plate that can separate the tongue-bumping limiting portion from the first limiting portion, and a first elastic member that can reset the tongue.

[0007] Furthermore, the main tongue assembly also includes a second elastic member for pushing the main tongue out of the side plate.

[0008] Furthermore, the first clutch member can slide on the second clutch member, and the second clutch member can make the locking portion on the first clutch member disengage from the locking portion on the main tongue assembly.

[0009] Furthermore, the first clutch member is provided with a guide boss, and the second clutch member is provided with a guide groove matched with the guide boss.

[0010] Furthermore, the pushing device is an electrically driven pushing device, including a pushing rod, a rotating wheel and a motor assembly.

[0011] Furthermore, the clutch device also includes a movable guide and a guide return spring, the second clutch is provided with a receiving groove for accommodating the movable guide, and the second clutch is provided with a sleeve notch at a position corresponding to the receiving groove.

[0012] Furthermore, the movable guide member includes a sliding block, a limiting protrusion and a spring cavity for accommodating a return spring of the guide member, the bottom shell is provided with a limiting hole for positioning the limiting protrusion, and the limiting hole is provided with a limiting protrusion for limiting the movement of the limiting protrusion.

[0013] Furthermore, the first clutch member is provided with a first guide block which can slide on the surface shell, and the second clutch member is provided with a second guide block which can slide on the bottom shell.

[0014] Furthermore, the movement direction of the first clutch member and the second clutch member is perpendicular to the movement direction of the main tongue.

[0015] Beneficial effects: Compared with the prior art, the present invention has a simple and compact structure, a small volume, safe and reliable operation, and a high degree of automation. The lock body only has a tongue assembly and a main tongue assembly, and the tongue assembly can be linked with the main tongue assembly to improve automation. The main tongue assembly has a locking part, and the main tongue assembly is locked and released by a clutch device, and the clutch device can be driven electrically or manually, which greatly reduces the number of parts in the lock body and reduces the volume of the lock body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will now be described in further detail with reference to the accompanying drawings.

[0017] Figure 1 It is a structural schematic diagram of the locked state of the present invention.

[0018] Figure 2 It is a schematic diagram of the structure of the door closing moment of the present invention.

[0019] Figure 3 It is an exploded view of part of the structure of the present invention.

[0020] Figure 4 Schematic diagram of the bottom structure of the present invention.

[0021] Figure 5-Figure 7 It is a schematic diagram of the structure of the components of the clutch device of the present invention. DETAILED DESCRIPTION

[0022] like Figure 1-7 As shown in FIG. 1 , an embodiment of the present invention is shown, in which the intelligent lock body comprises a lock housing 1, a side plate 2, a tongue assembly 3, a main tongue assembly 4, a fork assembly 5, a clutch device 6 and a push device 7. The lock housing 1 is composed of a front housing 11 and a bottom housing 12.

[0023] The tongue assembly 3 includes a tongue 31, a tongue limiting portion 32, a guide plate 33, a first elastic member 34 that can reset the tongue 31, and a limiting portion 35 that cooperates with the first elastic member 34. In this embodiment, the end of the tongue 31 has an inclined surface, the tongue limiting portion 32 is a position at the root of the tongue 31, and the guide plate 33 is an inclined plate. When the door is closed, the tongue 31 can be retracted into the side plate 2 under the pressure of the door frame, and when the first elastic member 34 presses the limiting portion 35, the tongue 31 can be reset, that is, extended out of the side plate 2.

[0024] The main tongue assembly 4 is used for locking the door body, and includes a main tongue 41, a first limiting portion 42, a second limiting portion 43 and a locking portion 44. The first limiting portion 42 cooperates with the tongue limiting portion 32 on the tongue assembly 3. When the door is opened, after the main tongue 31 retracts into the side panel 2, the first limiting portion 42 is stuck on the tongue limiting portion 32, so that the main tongue 41 will not extend out of the side panel 2, ensuring smooth closing of the door next time. The main tongue assembly 4 also includes a second elastic member 45 for pushing the main tongue 41 out of the side panel 2. The second elastic member 45 of this embodiment is a torsion spring, and the free end of the torsion spring is stuck on the second limiting portion 43 on the main tongue assembly 4. When the main tongue assembly 4 loses external force restriction, it is reset under the action of the second elastic member 45, that is, the main tongue 41 extends out of the side panel 2.

[0025] The side plate 2 is located on one side of the surface shell 11 and the bottom shell 12 ; the side plate 2 is provided with holes for the extension and retraction of the contact tongue 31 and the main tongue 41 .

[0026] The fork assembly 5 includes a shifting arm 51 . In this embodiment, the shifting arm 51 can shift the second limiting portion 43 on the main tongue assembly 4 to retract the main tongue 41 into the side plate 2 .

[0027] The clutch device 6 is used to lock and release the main tongue assembly 4. In an embodiment of the present invention, the clutch device 6 includes a first clutch member 61, a second clutch member 62 and a spring 63 between the two clutch members. The first clutch member 61 is provided with a locking portion 611 that matches with the locking portion 44 on the main tongue assembly 4. When the locking portion 611 is inserted into the locking portion 44, the main tongue assembly 4 can be locked. When the locking portion 611 is separated from the locking portion 44, the main tongue assembly 4 can be released. The first clutch member 61 can slide on the second clutch member 62, and the second clutch member 62 can make the locking portion 611 on the first clutch member 61 disengage from the locking portion 44 on the main tongue assembly 4. The first clutch member 61 is provided with a guide boss 612, and the second clutch member 62 is provided with a guide groove 621 that matches with the guide boss 612. The end 622 of the guide groove 621 is closed, and the end 622 functions to stop the guide boss 612. When the second clutch 62 moves away from the main tongue assembly 4 under the action of external force, due to the stopper effect of the end 622, the second clutch 62 will pull the first clutch 61 to move together, thereby causing the locking portion 611 to disengage from the locking portion 44 on the main tongue assembly 4. In order to enable the clutch device 6 to be unlocked by a key or other manual means, the clutch device 6 also includes a movable guide 64 and a guide reset spring 65. A receiving groove 623 for accommodating the movable guide 64 is provided on the second clutch 62, and a sleeve notch 624 is provided on the second clutch 62 at a position corresponding to the receiving groove 623. The movable guide 64 includes a sliding block 641, a limiting protrusion 642, and a spring cavity 643 for accommodating the guide reset spring 65. A limiting hole 121 for positioning the limiting protrusion 642 is provided on the bottom shell 12, and a limiting protrusion 122 for limiting the movement of the limiting protrusion 642 is provided on the limiting hole 121. In the embodiment of the present invention, the movement direction of the first clutch member 61 and the second clutch member 62 is perpendicular to the movement direction of the main tongue 41, so that the locking portion 611 and the locking portion 44 can be locked more firmly when locked.

[0028] The pushing device 7 is used to push the first clutch member 61 so that the locking portion 611 is disengaged from the locking portion 44 on the main tongue assembly 4. The pushing device 7 of this embodiment is an electrically driven pushing device, including a pushing rod 71, a rotating wheel 72 and a motor assembly 73. The pushing rod 71 is located at an eccentric position of the rotating wheel 72, and the pushing rod 71 will have a pushing effect on the component blocking it when the rotating wheel 72 rotates. The pushing device 7 can also be other conventional technical means in the prior art, as long as it can achieve the purpose of disengaging the locking portion 611 of the first clutch member 61 from the locking portion 44 on the main tongue assembly 4.

[0029] In order to enable the clutch device 6 to move stably and without shaking in the lock housing, the first clutch member 61 is provided with a first guide block 613 that can slide on the face shell 11, and the second clutch member 62 is provided with a second guide block 625 that can slide on the bottom shell 12. Correspondingly, a guide hole 111 that cooperates with the first guide block 613 is provided at a corresponding position on the face shell 11, and a guide hole 123 that cooperates with the second guide block 625 is provided at a corresponding position on the bottom shell 12.

[0030] Working principle:

[0031] 1. When closing the door, the inclined surface on the tongue 31 is squeezed by the door frame, and the tongue 31 retracts to the side panel 2. The tongue assembly 3 deviates under the guidance of the guide plate 33, so that the tongue limiting portion 32 releases the first limiting portion 42 in the main tongue assembly 4. Under the action of the second elastic member 45, the main tongue 41 extends out of the side panel 2. When the locking portion 44 on the main tongue 41 corresponds to the locking portion 611 on the first clutch member 61, under the action of the spring 63, the locking portion 611 is inserted into the locking portion 44 of the main tongue 41, and the main tongue 41 is locked, thereby locking the door body.

[0032] 2. When opening the door, the door can be unlocked by electric drive or manually. Manual unlocking includes inserting a key into a lock cylinder (not shown) or unlocking with a handle. Generally, manual unlocking is performed when there is a power outage or a fault in the electrical part. When unlocking the door by electric drive, after the push device 7 receives the unlocking electrical signal, the push rod 71 in the push device 7 pushes the limiting portion 614 on the first clutch 61, and then pushes the first clutch 61 to move, so that the locking portion 611 on the first clutch 61 is separated from the locking portion 44 on the main tongue 41. At this time, the main tongue 41 is in a released state. The handle outside the door (not shown) is turned, and the handle drives the lever arm 51 in the fork assembly 5 to rotate, and the lever arm 51 drives the third limiting portion 43 on the main tongue assembly 4 to move, and then drives the main tongue 41 to retract to the side plate 2, so that the door can be opened. The end of the tongue 31 is an inclined surface, so it has no limiting effect on the door. When the door is opened, the door frame presses the inclined surface of the tongue 31, and the tongue 31 is retracted into the side plate, so the door can be opened smoothly.

[0033] When unlocking manually, the key can be used to unlock the door from outside or inside. Before unlocking, due to the action of the return spring 65 of the movable guide member 64, the movable guide member 64 is stuck on one side of the limiting hole 121 in the accommodating groove 623 and will not move. When the key is inserted into the lock cylinder and the key is twisted to unlock, the pull sleeve (not shown) on the lock cylinder rotates and falls into the pull sleeve notch 624 on the second clutch member 62. At the same time, the pull sleeve squeezes the movable guide member 64, and the limiting protrusion 642 on the movable guide member 64 is separated from the limitation of the limiting protrusion 122 in the limiting hole 121. The movable guide member 64 can move with the second clutch member 62, and the pull sleeve continues to rotate, moving the second clutch member 62 in a direction away from the main tongue. Since the second clutch member 62 pulls the first clutch member 61 to move, the locking portion 611 on the first clutch member 61 is separated from the locking portion 44 on the main tongue 41. At this time, the main tongue 41 is in a released state, and the handle is rotated to open the door.

[0034] After the door is opened, the tongue 31 rebounds under the action of the first elastic member 34 and extends out of the side panel 2 again. At this time, the door opener stops turning the handle, and the main tongue 41 rebounds under the action of the second elastic member 45, but the first limiting portion 42 on the main tongue assembly 4 is restricted by the tongue limiting portion 32 on the tongue assembly 3 and cannot continue to rebound. The main tongue 41 is in a state of retracting into the side panel 2, which ensures that the door can be closed. When the tongue assembly 3 hits the door frame when closing the door, the main tongue 41 is released.

Claims

1. A smart lock body, characterized in that: include: The lock housing (1) is composed of a front housing (11) and a bottom housing (12); A side plate (2) located on one side of the surface shell (11) and the bottom shell (12); A tongue assembly (3), comprising a tongue (31), wherein the tongue (31) can be retracted into the side panel (2) under the pressure of the door frame; A main tongue assembly (4), used for locking a door body, comprising a main tongue (41), a first limiting portion (42) limited by the tongue-touching assembly (3), a second limiting portion (43) and a locking portion (44); A shift fork assembly (5) comprising a shift arm (51), wherein the shift arm (51) can shift a second limiting portion (43) on the main tongue assembly (4) to retract the main tongue (41) into the side plate (2); A clutch device (6) for locking and releasing the main tongue assembly (4), comprising a first clutch member (61), a second clutch member (62) and a spring (63), wherein the first clutch member (61) is provided with a locking portion (611) that cooperates with a locking portion (44) on the main tongue assembly (4); A pushing device (7) for pushing the first clutch member (61) so that the locking portion (611) on the first clutch member (61) is disengaged from the locking portion (44) on the main tongue assembly (4); The tongue-touching assembly (3) further comprises a tongue-touching restriction portion (32) matched with a first restriction portion (42) on the main tongue assembly (4), a guide plate (33) capable of disengaging the tongue-touching restriction portion (32) from the first restriction portion (42), and a first elastic member (34) capable of resetting the tongue-touching assembly (31); The main tongue assembly (4) further comprises a second elastic member (45) for pushing the main tongue (41) out of the side plate (2); The first clutch member (61) can slide on the second clutch member (62), and the second clutch member (62) can make the locking portion (611) on the first clutch member (61) disengage from the locking portion (44) on the main tongue assembly (4); The first clutch member (61) is provided with a guide boss (612), and the second clutch member (62) is provided with a guide groove (621) matching with the guide boss (612).

2. The smart lock body according to claim 1, characterized in that: The pushing device (7) is an electrically driven pushing device, comprising a pushing rod (71), a rotating wheel (72) and a motor assembly (73).

3. A smart lock body according to claim 1 or 2, characterized in that: The clutch device (6) further comprises a movable guide member (64) and a guide member return spring (65); the second clutch member (62) is provided with a receiving groove (623) for receiving the movable guide member (64); and the second clutch member (62) is provided with a sleeve-pulling notch (624) at a position corresponding to the receiving groove (623).

4. The smart lock body according to claim 3, characterized in that: The movable guide member (64) comprises a sliding block (641), a limiting protrusion (642) and a spring cavity (643) for accommodating a return spring (65) of the guide member, and the bottom shell (12) is provided with a limiting hole (121) for positioning the limiting protrusion (642), and the limiting hole (121) is provided with a limiting protrusion (122) for limiting the movement of the limiting protrusion.

5. A smart lock body according to claim 1 or 2, characterized in that: The first clutch member (61) is provided with a first guide block (613) that can slide on the surface shell (11), and the second clutch member (62) is provided with a second guide block (625) that can slide on the bottom shell (12).

6. A smart lock body according to claim 1 or 2, characterized in that: The movement directions of the first clutch member (61) and the second clutch member (62) are perpendicular to the movement direction of the main tongue (41).

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