Emergency unlocking structure and smart lock

Abstract

The present invention relates to the technical field of smart locks, and discloses an emergency unlocking structure and a smart lock. The emergency unlocking structure includes: a lock shell limiting structure, which is provided with an installation position; a lock core, which is arranged in the installation position, and a limiting pin is arranged in the lock core; an unlocking structure, which is coaxially sleeved on the lock core, and the unlocking structure is provided with a limiting opening corresponding to the limiting pin, and the limiting pin has a free state and a working state. In the free state, the limiting pin protrudes from the lock core and cooperates with the limiting opening, and in the working state, the limiting pin is separated from the limiting opening; a rotating seat, which is sleeved on the lock shell limiting structure and is provided with a clutch pin, and the clutch pin has a first end and a second end, and the first end is arranged corresponding to the limiting pin; a driving member, which is power-connected with a push plate, and the push plate is arranged corresponding to the second end; a controller, which is electrically connected to the driving member; the present invention controls the controller to make the driving member drive the push plate and make the first end of the clutch pin enter the limiting opening for cooperation, and the rotating seat is driven by external force to rotate and drive the unlocking structure to rotate together, thereby completing the emergency unlocking.

Description

Technical Field

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

[0002] A lock is a device used to protect property, places, or information security. A smart lock is different from a traditional mechanical lock. It verifies the user's access rights through a password or a password combined with biometrics, and uses circuits to control the mechanical device to complete the unlocking and locking actions. At the same time, smart locks use fingerprints, Bluetooth, passwords, and other non-mechanical key methods to unlock, which brings great convenience to users and is significantly more secure than traditional mechanical locks. When a smart lock cannot be opened in an emergency due to a malfunction of the internal electronic system or the mechanical device that drives the unlocking, a spare mechanical key is usually used to unlock the lock. However, users generally do not carry mechanical keys with them or leave them in a spare location that is difficult to retrieve, making it impossible for users to unlock the lock in an emergency. Summary of the Invention

[0003] In view of this, the present invention provides an emergency unlocking structure to solve the problem that the user cannot perform emergency unlocking because the user does not carry the mechanical key with him or places the mechanical key in a spare place that is inconvenient to retrieve.

[0004] At the same time, the present invention provides a smart lock to solve the problem that the user cannot perform emergency unlocking because the user does not carry the mechanical key with him or places the mechanical key in a spare place that is inconvenient to retrieve.

[0005] In the first aspect, the present invention provides an emergency unlocking structure, comprising: a lock shell limiting structure, which is provided with an installation position; a lock core, which is arranged in the installation position, and a limiting pin is arranged in the lock core; an unlocking structure, which is coaxially sleeved on the lock core, and the unlocking structure is provided with a limiting opening corresponding to the limiting pin, and the limiting pin has a free state and a working state. In the free state, the limiting pin protrudes from the lock core and cooperates with the limiting opening, so that the lock core and the unlocking structure can rotate together; in the working state, the limiting pin is disengaged from the limiting opening, so that the lock core and the unlocking structure can rotate relative to each other; a rotating seat, which is sleeved on the lock shell limiting structure, and the rotating seat A first through hole is opened on it, and a clutch pin is provided in the first through hole, and the clutch pin is suitable for axial movement along the first through hole, and the clutch pin has a first end and a second end, and the first end is arranged corresponding to the limit pin; the driving member is dynamically connected with a push plate, and the push plate is arranged corresponding to the second end; the controller is electrically connected to the driving member; from the free state to the working state, the controller controls the driving member to drive the push plate toward the second end, so that the first end pushes the limit pin out of the limit opening and enters the working state, and makes the first end enter the limit opening for cooperation, so that the rotating seat is suitable for driving the unlocking structure to rotate for unlocking.

[0006] Beneficial effect: The emergency unlocking structure provided by the present invention, when the lock has an electronic failure and the user does not carry the mechanical key, controls the controller through the backup circuit, so that the driving member drives the push plate to make the first end of the clutch pin enter the limit mouth for cooperation, and the pushing part pushes the limit pin to enter the working state, and the rotating seat is driven by external force to rotate and drive the unlocking structure to rotate together, so as to realize smooth emergency unlocking of the lock. At the same time, the safety of the emergency unlocking structure is guaranteed by the cooperation of the limit pin and the clutch pin. The structure is simple and easy to use, which improves the user experience, thereby solving the problem that the user cannot perform emergency unlocking because he does not carry the mechanical key with him or puts the mechanical key in a backup place that is inconvenient to retrieve.

[0007] In an optional embodiment, the lock housing limiting structure is provided with an escape opening, at least a portion of the structure of the rotating seat is extended to form a mounting portion suitable for passing through the escape opening, and the mounting portion is provided with the first through hole.

[0008] Beneficial effect: The mounting portion formed by extending at least part of the structure of the rotating seat provides an opening position for the first through hole, and the avoidance opening opened on the lock shell limiting structure provides rotation space for the mounting portion, ensuring that the mounting portion thereon rotates smoothly when the rotating seat rotates and drives the clutch pin to rotate together.

[0009] In an optional embodiment, a limiting ring is fixed in the first through hole, a second through hole is opened on the limiting ring, the clutch pin also has a limiting platform corresponding to the limiting ring, and the second end is suitable for passing through the second through hole and allowing the limiting ring to limit the limiting platform.

[0010] Beneficial effect: After installing the clutch pin in the first through hole, the limit ring is set to ensure that the clutch pin is installed smoothly. At the same time, the limit ring and the limit platform of the clutch pin are set correspondingly to ensure that the clutch pin is always set in the first through hole, avoiding the clutch pin from leaving the first through hole, and ensuring the unlocking stability of the emergency unlocking structure.

[0011] In an optional embodiment, the emergency unlocking structure also includes a first elastic member, which is sleeved on the first end and installed in the first through hole. One end of the first elastic member abuts against the inner wall of the rotating seat, and the other end abuts against the limit platform. The first elastic member applies an elastic force to the clutch pin in a direction away from the limit pin.

[0012] Beneficial effect: when the push plate and the clutch pin are not in contact, the first elastic member extends naturally, and the first end of the clutch pin disengages from the limit opening. After the push plate and the clutch pin are in contact, the first end of the clutch pin cooperates with the limit opening and the first elastic member is compressed to store energy. After the unlocking is completed, the first elastic member applies an elastic force to the clutch pin in the direction away from the limit pin, so that the first end of the clutch pin disengages from the limit opening, thereby realizing automatic resetting of the clutch pin, avoiding the first end of the clutch pin from being always inserted in the limit opening, and ensuring the unlocking stability of the emergency unlocking structure.

[0013] In an optional embodiment, the lock core is provided with a third through hole, a limiting protrusion is formed in the third through hole, the limiting pin forms a limiting matching portion corresponding to the limiting protrusion, the limiting pin is suitable for passing through the third through hole and moving along the axial direction of the third through hole, and the limiting protrusion limits the limiting matching portion, and the third through hole is also fixed with a limiting cover plate.

[0014] Beneficial effect: The limit pin is installed on one side of the third through hole at the limit cover plate, and then the limit cover plate is used to close the side of the third through hole away from the clutch pin to ensure that the limit pin is installed smoothly. At the same time, the limit protrusion and the limit matching part of the limit pin are set correspondingly to ensure that the limit pin is always set in the third through hole, avoiding the limit pin from detaching from the third through hole, and ensuring the unlocking stability of the emergency unlocking structure.

[0015] In an optional embodiment, the emergency unlocking structure also includes a second elastic member, which is installed in the third through hole. One end of the second elastic member abuts against the limit pin, and the other end abuts against the limit cover plate. The second elastic member applies an elastic force to the limit pin in the direction close to the clutch pin.

[0016] Beneficial effect: when the push plate and the clutch pin are not in contact, the second elastic part extends naturally, and the limit pin cooperates with the limit opening. After the push plate contacts the clutch pin and pushes the clutch pin, the limit pin is separated from the limit opening and the second elastic part is compressed to store energy. After the unlocking is completed, the second elastic part applies an elastic force to the limit pin in the direction close to the clutch pin, so that the limit pin cooperates with the limit opening, thereby realizing automatic resetting of the limit pin, avoiding the limit pin from always being separated from the limit opening, and ensuring the unlocking stability of the emergency unlocking structure.

[0017] In an optional embodiment, the lock case limiting structure includes a detachably connected lock case component and a limiting plate, the mounting position is provided on the lock case component, and the avoidance opening is provided on the limiting plate.

[0018] Beneficial effect: by providing a detachably connected lock shell limiting structure consisting of a lock shell member and a limiting plate, it is convenient to assemble the emergency unlocking structure.

[0019] In an optional embodiment, the end face of the second end is an arc surface, the push surface of the push plate is an arc that matches the arc surface, the push surface is suitable for contacting the second end, and the center of the arc is concentric with the center of the rotating seat.

[0020] Beneficial Effects: During emergency unlocking without a mechanical key, the end surface of the second end is always in contact with the push plate. During rotation of the rotating seat, the rotating seat drives the clutch pin to rotate together, causing the end surface of the second end of the clutch pin to slide and rub against the push plate. By configuring the end surface of the second end as an arcuate surface, the friction between the end surface and the push plate is reduced, thereby reducing wear on the end surface and the push plate. By configuring the push plate's push surface in an arc shape, with the center of the arc concentric with the center of the rotating seat, the clutch pin, which rotates with the rotating seat, always contacts the arcuate push surface of the push plate when the rotating seat rotates, ensuring the unlocking stability of the emergency unlocking structure.

[0021] In an optional embodiment, the emergency unlocking structure also includes a shell, a knob is hinged on the rotating seat, and a placement slot is provided on the shell corresponding to the knob. When the knob is arranged in the placement slot, the first end corresponds to the position of the limit pin.

[0022] Beneficial Effects: When emergency unlocking is performed without a mechanical key, a knob is hingedly provided on the rotating base, and the knob can be pulled out to facilitate rotation of the rotating base, resulting in a simple structure and convenient operation. Furthermore, when the knob is positioned within the placement slot, the first end of the knob corresponds to the position of the limit pin. By placing the knob within the placement slot, the first end of the clutch pin on the rotating base corresponds to the position of the limit pin on the lock core, allowing the emergency unlocking mechanism to function normally the next time.

[0023] In a second aspect, the present invention further provides a smart lock comprising a back plate and the emergency unlocking structure described in any one of the above embodiments, wherein the emergency unlocking structure is arranged on the back plate.

[0024] Beneficial effect: The present invention provides a smart lock, and the back plate serves as an operating carrier of the emergency unlocking structure and provides an installation position for the emergency unlocking structure. By arranging the emergency unlocking structure on the back plate, when an electronic failure occurs and the user does not carry the mechanical key, the smart lock controls the controller through the backup circuit, so that the driving member drives the push plate to make the first end of the clutch pin enter the limit mouth for cooperation, and the pushing part pushes the limit pin to enter the working state, and the rotating seat is driven by external force to rotate and drive the unlocking structure to rotate together, completing the emergency unlocking, and realizing smooth emergency unlocking of the lock. At the same time, the safety of the emergency unlocking structure is guaranteed by the cooperation of the limit pin and the clutch pin. The structure is simple and easy to use, which improves the user experience, thereby solving the problem that the user cannot perform emergency unlocking because he does not carry the mechanical key with him or puts the mechanical key in a backup place that is inconvenient to retrieve.

[0025] At the same time, because the smart lock includes an emergency unlocking structure, it has the same effect as the emergency unlocking structure and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 A cross-sectional view of an emergency unlocking structure provided by the present invention;

[0028] Figure 2 A schematic diagram of the structure of the lock core, rotating seat, knob and housing provided by the present invention;

[0029] Figure 3 for Figure 1 A partial enlarged schematic diagram of the middle lock housing limit structure, lock core, unlocking structure and rotating seat;

[0030] Figure 4 A cross-sectional view of the limiting structure, locking core, and rotating seat provided by the present invention;

[0031] Figure 5 A schematic diagram of the structure of the cooperation between the limiting structure, locking core, unlocking structure and rotating seat provided by the present invention;

[0032] Figure 6A schematic structural diagram of the lock housing limiting structure provided by the present invention;

[0033] Figure 7 for Figure 6 A structural diagram from another perspective;

[0034] Figure 8 A schematic diagram of the structure of the cooperation between the limiting structure, the locking core and the rotating seat provided by the present invention;

[0035] Figure 9 A schematic structural diagram of the unlocking structure provided by the present invention;

[0036] Figure 10 A schematic diagram of the structure of the knob and the rotating seat provided by the present invention;

[0037] Figure 11 for Figure 10 A structural diagram from another perspective.

[0038] Description of reference numerals:

[0039] 1. Lock case limiting structure; 101. Lock case component; 1011. Mounting position; 102. Limiting plate; 1021. Avoidance; 103. Screws;

[0040] 2. Locking core; 201. Third through hole; 202. Position limiting protrusion; 203. Position limiting cover plate;

[0041] 3. Limit pin; 301. Limit matching part;

[0042] 4. Unlocking structure; 401. Clutch transmission member; 4011. Limiting opening; 402. Paddle;

[0043] 5. Rotating seat; 501. Mounting portion; 5011. First through hole; 502. Fourth through hole;

[0044] 6. Clutch pin; 601. First end; 602. Second end; 603. Limiting platform;

[0045] 7. Driving parts;

[0046] 8. Push plate;

[0047] 9. Limiting ring; 901. Second through hole;

[0048] 10. a first elastic member;

[0049] 11. a second elastic member;

[0050] 12. Shell; 1201. Placement slot;

[0051] 13. Knob;

[0052] 14. Back panel;

[0053] 15. Mechanical key. DETAILED DESCRIPTION

[0054] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0055] The following combination Figures 1-11 , describing embodiments of the present invention.

[0056] According to an embodiment of the present invention, on the one hand, an emergency unlocking structure is provided, such as Figure 1-Figure 5 As shown, it includes: a lock shell limiting structure 1, a lock core 2, a limiting pin 3, an unlocking structure 4, a rotating seat 5, a clutch pin 6, a driving part 7, a controller, etc.

[0057] The lock shell limiting structure 1 is provided with an installation position 1011 ; the lock core 2 is arranged in the installation position 1011 , and a limiting pin 3 is provided in the lock core 2 .

[0058] Specifically, if Figure 3-Figure 5 As shown, the lock shell limiting structure 1 opens an installation position 1011, and the lock shell limiting structure 1 itself is suitable for fixed setting, providing installation space for the lock core 2 and generating a supporting effect. The lock core 2 is set in the installation position 1011 and is suitable for rotating relative to the installation position 1011. The limit pin 3 is located on the part of the structure where the lock core 2 extends out of the installation position 1011, ensuring that the limit pin 3 does not interfere with the installation position 1011 when it protrudes from the lock core 2 and moves with the lock core 2.

[0059] Furthermore, this embodiment does not limit the molding method of the lock case limiting structure 1. In one embodiment, the lock case limiting structure 1 is configured as an integrally molded injection molded structure; in another embodiment, the lock case limiting structure 1 is configured as a composite structure formed by connecting multiple components.

[0060] The unlocking structure 4 is coaxially sleeved on the lock core 2, and a limiting opening 4011 is set at the unlocking structure 4 corresponding to the limiting pin 3. The limiting pin 3 has a free state and a working state. In the free state, the limiting pin 3 protrudes from the lock core 2 and cooperates with the limiting opening 4011, so that the lock core 2 and the unlocking structure 4 can rotate together; in the working state, the limiting pin 3 is disengaged from the limiting opening 4011, so that the lock core 2 and the unlocking structure 4 can rotate relative to each other.

[0061] Specifically, if Figure 3-Figure 5As shown, in the free state, the limit pin 3 protrudes from the lock core 2 and cooperates with the limit mouth 4011, so that the lock core 2 and the unlocking structure 4 can rotate together. When the lock core 2 is driven by the mechanical key 15, the lock core 2 and the unlocking structure 4 rotate together to realize the unlocking operation; in the working state, the limit pin 3 is disengaged from the limit mouth 4011, so that the lock core 2 and the unlocking structure 4 can rotate relative to each other, preparing for the unlocking operation when there is no mechanical key 15.

[0062] Furthermore, if Figure 3-Figure 5 、 Figure 9 As shown, the unlocking structure 4 includes a clutch transmission member 401 and a paddle 402 connected to the clutch transmission member 401 , a limiting opening 4011 is provided on the clutch transmission member 401 , and the paddle 402 is driven by the clutch transmission member 401 to rotate, thereby performing an unlocking operation.

[0063] The rotating seat 5 is sleeved on the lock shell limiting structure 1, and a first through hole 5011 is opened on the rotating seat 5. A clutch pin 6 is provided in the first through hole 5011. The clutch pin 6 is suitable for axial movement along the first through hole 5011. The clutch pin 6 has a first end 601 and a second end 602. The first end 601 is arranged corresponding to the limiting pin 3; the driving member 7 is power-connected to the push plate 8, and the push plate 8 is arranged corresponding to the second end 602.

[0064] Specifically, if Figure 3-Figure 5 As shown, the driving member 7 can push the push plate 8 to move toward the second end 602 of the clutch pin 6, so that the push plate 8 pushes the clutch pin 6 to move along the axial direction of the first through hole 5011.

[0065] The controller is electrically connected to the driving member 7 and is used to control the power output and driving action of the driving member 7, thereby controlling the pushing action of the push plate 8.

[0066] It should be noted that the electric control system formed by the driving member 7 and the controller is composed of one or more modules with information verification and interaction functions, and can establish data connections such as Bluetooth connection or wireless network connection with the user's mobile device, so as to use the controller to complete user identity authentication and send an unlocking signal to the driving member 7. In this embodiment, the type of electric control system formed by the driving member 7 and the controller is limited, and modules with the above functions all fall within the protection scope of this embodiment.

[0067] From the free state to the working state, the controller controls the driving member 7 to drive the push plate 8 toward the second end 602, so that the first end 601 pushes the limit pin 3 out of the limit mouth 4011 to enter the working state, and makes the first end 601 enter the limit mouth 4011 for cooperation, so that the rotating seat 5 is suitable for driving the unlocking structure 4 to rotate for unlocking.

[0068] Specifically, if Figure 3-Figure 5As shown, when this emergency unlocking structure performs emergency unlocking without the need for a mechanical key 15, it first controls the controller to drive the driving member 7, so that the driving member 7 drives the push plate 8 to push toward the second end 602 of the clutch pin 6 until the first end 601 of the clutch pin 6 enters the limit opening 4011 for cooperation, and at the same time, the first end 601 of the clutch pin 6 pushes the limit pin 3, so that the limit pin 3 enters the working state, that is, the limit pin 3 disengages from the limit opening 4011, so that the lock core 2 and the unlocking structure 4 can rotate relative to each other, and then the rotating seat 5 and the unlocking structure 4 are dynamically connected, that is, the rotation of the rotating seat 5 can drive the unlocking structure 4 to rotate synchronously, and the rotating seat 5 is driven by external force to rotate and drive the unlocking structure 4 to rotate, and the emergency unlocking is completed when the unlocking structure 4 rotates.

[0069] Furthermore, when using the mechanical key 15 to unlock, the limit pin 3 is in a free state, that is, the limit pin 3 protrudes from the lock core 2 and cooperates with the limit port 4011, so that the lock core 2 and the unlocking structure 4 can rotate together. The mechanical key 15 is inserted into the lock core 2, so that the lock core 2 and the relative lock shell limit structure 1 rotate relative to each other. Rotating the mechanical key 15 drives the lock core 2 and the unlocking structure 4 to rotate together to complete the unlocking.

[0070] Furthermore, when there is no mechanical key 15 and the controller is not controlled to push the push plate 8, the limit pin 3 is in a free state, that is, the limit pin 3 protrudes from the lock core 2 and cooperates with the limit mouth 4011, and the clutch pin 6 is disengaged from the limit mouth 4011, and the rotating seat 5 cannot drive the unlocking structure 4 to rotate through the clutch pin 6. At this time, the external force drives the rotating seat 5 to rotate and cannot unlock, thereby ensuring the safety of the emergency unlocking structure.

[0071] The present embodiment provides an emergency unlocking structure. When an electronic failure occurs in the lock and the user does not carry the mechanical key 15, the controller is controlled by the backup circuit, so that the driving member 7 drives the push plate 8 to make the first end 601 of the clutch pin 6 enter the limit opening 4011 for cooperation, and the pushing part pushes the limit pin 3 to enter the working state, and the rotating seat 5 is driven by external force to rotate and drive the unlocking structure 4 to rotate together, so as to realize smooth emergency unlocking of the lock. At the same time, the safety of the emergency unlocking structure is guaranteed by the cooperation of the limit pin and the clutch pin. The structure is simple and easy to use, which improves the user experience, thereby solving the problem that the user cannot perform emergency unlocking because he does not carry the mechanical key 15 with him or puts the mechanical key 15 in a backup place that is inconvenient to retrieve.

[0072] In one embodiment, Figure 3-Figure 7 、 Figure 10 、 Figure 11 As shown, the lock housing limiting structure 1 is provided with an escape opening 1021 , and at least a portion of the structure of the rotating seat 5 is extended to form a mounting portion 501 suitable for passing through the escape opening 1021 , and the mounting portion 501 is provided with a first through hole 5011 .

[0073] Specifically, if Figure 6 、 Figure 7 、 Figure 10 、 Figure 11 As shown, the mounting portion 501 formed by extending at least part of the structure of the rotating seat 5 provides an opening position for the first through hole 5011, and the avoidance opening 1021 opened on the lock shell limiting structure 1 provides a rotation space for the mounting portion 501, ensuring that when the rotating seat 5 rotates, the mounting portion 501 thereon rotates smoothly and drives the clutch pin 6 to rotate together.

[0074] In one embodiment, Figure 3 、 Figure 4 As shown, a limiting ring 9 is fixed in the first through hole 5011, a second through hole 901 is opened on the limiting ring 9, and the clutch pin 6 also has a limiting platform 603 corresponding to the limiting ring 9, and the second end 602 is suitable for passing through the second through hole 901 and allowing the limiting ring 9 to limit the limiting platform 603.

[0075] Specifically, if Figure 3 、 Figure 4 As shown, after the clutch pin 6 is installed in the first through hole 5011, the limit ring 9 is set to ensure that the clutch pin 6 is installed smoothly. At the same time, the limit ring 9 is set corresponding to the limit platform 603 of the clutch pin 6 to ensure that the clutch pin 6 is always set in the first through hole 5011, avoiding the clutch pin 6 from being separated from the first through hole 5011, and ensuring the unlocking stability of the emergency unlocking structure.

[0076] In one embodiment, Figure 4 As shown, the emergency unlocking structure also includes a first elastic member 10, which is sleeved on the first end 601 and installed in the first through hole 5011. One end of the first elastic member 10 abuts against the inner wall of the rotating seat 5, and the other end abuts against the limit platform 603. The first elastic member 10 applies an elastic force to the clutch pin 6 away from the limit pin 3.

[0077] Specifically, if Figure 4 As shown, when the push plate 8 and the clutch pin 6 are in no contact, the first elastic member 10 extends naturally, and the first end 601 of the clutch pin 6 disengages from the limit opening 4011. After the push plate 8 contacts the clutch pin 6, the first end 601 of the clutch pin 6 cooperates with the limit opening 4011 and the first elastic member 10 is compressed to store energy. After the unlocking is completed, the first elastic member 10 applies an elastic force to the clutch pin 6 in the direction away from the limit pin 3, so that the first end 601 of the clutch pin 6 disengages from the limit opening 4011, thereby realizing automatic resetting of the clutch pin 6, avoiding the first end 601 of the clutch pin 6 from always being inserted in the limit opening 4011, and ensuring the unlocking stability of the emergency unlocking structure.

[0078] Furthermore, in this embodiment, there is no limitation on the specific structure of the first elastic member 10 , and the first elastic member 10 may be a spring, an elastic gasket, an elastic sleeve, or the like.

[0079] Furthermore, when the first elastic member 10 is not provided, the clutch pin 6 can be automatically reset by relying on gravity.

[0080] In one embodiment, Figure 3 、 Figure 4 As shown, the lock core 2 is provided with a third through hole 201, a limiting protrusion 202 is formed in the third through hole 201, and the limiting pin 3 corresponds to the limiting protrusion 202 to form a limiting matching portion 301. The limiting pin 3 is suitable for passing through the third through hole 201 and moving along the axial direction of the third through hole 201, and the limiting protrusion 202 limits the limiting matching portion 301. The third through hole 201 is also fixed with a limiting cover plate 203.

[0081] Specifically, if Figure 3 、 Figure 4 As shown, the limit pin 3 is installed on one side of the third through hole 201 at the limit cover plate 203, and then the limit cover plate 203 is used to close the side of the third through hole 201 away from the clutch pin 6 to ensure that the limit pin 3 is installed smoothly. At the same time, the limit protrusion 202 and the limit matching part 301 of the limit pin 3 are set correspondingly to ensure that the limit pin 3 is always set in the third through hole 201, avoiding the limit pin 3 from being separated from the third through hole 201, and ensuring the unlocking stability of the emergency unlocking structure.

[0082] In one embodiment, Figure 4 As shown, the emergency unlocking structure also includes a second elastic member 11, which is installed in the third through hole 201. One end of the second elastic member 11 abuts against the limit pin 3, and the other end abuts against the limit cover plate 203. The second elastic member 11 applies an elastic force to the limit pin 3 in the direction close to the clutch pin 6.

[0083] Specifically, if Figure 4 As shown, when the push plate 8 is in no contact with the clutch pin 6, the second elastic member 11 extends naturally, and the limit pin 3 cooperates with the limit opening 4011. After the push plate 8 contacts the clutch pin 6 and pushes the clutch pin 6, the limit pin 3 is disengaged from the limit opening 4011 and the second elastic member 11 is compressed to store energy. After the unlocking is completed, the second elastic member 11 applies an elastic force to the limit pin 3 in the direction close to the clutch pin 6, so that the limit pin 3 cooperates with the limit opening 4011, thereby realizing automatic resetting of the limit pin 3, avoiding the limit pin 3 from always being disengaged from the limit opening 4011, and ensuring the unlocking stability of the emergency unlocking structure.

[0084] Furthermore, similarly, in this embodiment, there is no limitation on the specific structure of the second elastic member 11 , and the second elastic member 11 may be a spring, an elastic gasket, an elastic sleeve, or the like.

[0085] Furthermore, similarly, when the second elastic member 11 is not provided, the limiting pin 3 can be automatically reset by relying on gravity.

[0086] In one embodiment, Figure 4 、 Figure 6 、 Figure 7 As shown, as a preferred embodiment, the lock case limiting structure 1 includes a detachably connected lock case component 101 and a limiting plate 102 , the installation position 1011 is provided on the lock case component 101 , and the avoidance opening 1021 is provided on the limiting plate 102 .

[0087] Specifically, if Figure 6 、 Figure 7 As shown, by providing a detachably connected lock case limiting structure 1 composed of a lock case member 101 and a limiting plate 102, the emergency unlocking structure is easily assembled.

[0088] Furthermore, the lock housing 101 and the limiting plate 102 are detachably connected via screws 103 .

[0089] In one embodiment, Figure 8 As shown, the end face of the second end 602 is an arc surface, and the push surface of the push plate 8 is an arc that matches the arc surface. The push surface is suitable for contacting the second end 602, and the center of the arc is concentric with the center of the rotating seat 5.

[0090] Specifically, if Figure 8 As shown, during emergency unlocking without the mechanical key 15, the end surface of the second end 602 is always in contact with the push plate 8. During the rotation of the rotating base 5, the rotating base 5 drives the clutch pin 6 to rotate together, causing the end surface of the second end 602 of the clutch pin 6 to slide and rub against the push plate 8. By configuring the end surface of the second end 602 as an arcuate surface, the friction between the end surface and the push plate 8 is reduced, thereby reducing the wear of the end surface and the push plate 8. By configuring the push surface of the push plate 8 as an arc, with the center of the arc concentric with the center of the rotating base 5, when the rotating base 5 rotates, the clutch pin 6, which rotates together with the rotating base 5, is always in contact with the arcuate push surface of the push plate 8, ensuring the unlocking stability of the emergency unlocking structure.

[0091] In one embodiment, Figure 1 、 Figure 2 、 Figure 10 、 Figure 11 As shown, the emergency unlocking structure also includes a shell 12, a knob 13 is hinged on the rotating seat 5, and a placement groove 1201 is opened on the shell 12 corresponding to the knob 13. When the knob 13 is arranged in the placement groove 1201, the first end 601 corresponds to the position of the limit pin 3.

[0092] Specifically, if Figure 1 、 Figure 2 、 Figure 10 、 Figure 11As shown, when emergency unlocking is performed without a mechanical key 15, the knob 13 is hingedly provided on the rotating base 5, and the knob 13 can be pulled out to facilitate rotation of the rotating base 5, resulting in a simple structure and convenient operation. At the same time, when the knob 13 is placed in the placement groove 1201, the first end 601 corresponds to the position of the limit pin 3. By placing the knob 13 in the placement groove 1201, the first end 601 of the clutch pin 6 on the rotating base 5 is aligned with the limit pin 3 on the lock core 2, so that the emergency unlocking structure can be used normally the next time.

[0093] Furthermore, if Figure 2 As shown, when the knob 13 is placed in the placement groove 1201, the knob 13 and the housing 12 are in the same plane, ensuring the integrity of the emergency unlocking structure.

[0094] Furthermore, a fourth through hole 502 is provided on the rotating seat 5 , and the fourth through hole 502 is arranged corresponding to the lock core 2 . The mechanical key 15 is suitable for passing through the fourth through hole 502 and inserting into the keyhole of the lock core 2 .

[0095] According to an embodiment of the present invention, on the other hand, a smart lock is also provided. Figure 1 、 Figure 2 As shown, it includes a back plate 14 and the emergency unlocking structure of any of the above embodiments, and the emergency unlocking structure is arranged on the back plate 14.

[0096] The present embodiment provides a smart lock, in which the back plate 14 serves as an operating carrier of the emergency unlocking structure and provides an installation position for the emergency unlocking structure. By arranging the emergency unlocking structure on the back plate 14, when an electronic failure occurs and the user does not carry the mechanical key 15, the smart lock controls the controller through the backup circuit, so that the driving member 7 drives the push plate 8 to make the first end 601 of the clutch pin 6 enter the limit opening 4011 for cooperation, and the pushing part pushes the limit pin 3 to enter the working state, and the rotating seat 5 is driven by external force to rotate and drive the unlocking structure 4 to rotate together, so as to realize smooth emergency unlocking of the lock. At the same time, the safety of the emergency unlocking structure is guaranteed by the cooperation of the limit pin and the clutch pin. The structure is simple and easy to use, which improves the user experience, thereby solving the problem that the user cannot perform emergency unlocking because he does not carry the mechanical key 15 with him or puts the mechanical key 15 in a backup location that is inconvenient to retrieve.

[0097] At the same time, because the smart lock includes an emergency unlocking structure, it has the same effect as the emergency unlocking structure and will not be described in detail here.

[0098] Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention. Such modifications and variations are all within the scope defined by the appended claims.

Claims

1. An emergency unlocking structure, characterized in that: include: The lock housing limiting structure (1) is provided with an installation position (1011); A locking core (2) is arranged in the installation position (1011), and a limiting pin (3) is arranged in the locking core (2); An unlocking structure (4) is coaxially sleeved on the lock core (2), and the unlocking structure (4) is provided with a limiting opening (4011) corresponding to the limiting pin (3). The limiting pin (3) has a free state and a working state. In the free state, the limiting pin (3) protrudes from the lock core (2) and cooperates with the limiting opening (4011), so that the lock core (2) and the unlocking structure (4) can rotate together. In the working state, the limiting pin (3) is disengaged from the limiting opening (4011), so that the locking core (2) and the unlocking structure (4) can rotate relative to each other; A rotating seat (5) is sleeved on the lock housing limiting structure (1), the rotating seat (5) is provided with a first through hole (5011), a clutch pin (6) is provided in the first through hole (5011), the clutch pin (6) is suitable for axial movement along the first through hole (5011), the clutch pin (6) has a first end (601) and a second end (602), the first end (601) is provided corresponding to the limiting pin (3); A driving member (7) is kinetically connected to a push plate (8), wherein the push plate (8) is arranged corresponding to the second end (602); a controller electrically connected to the driving member (7); From the free state to the working state, the controller controls the driving member (7) to drive the push plate (8) toward the second end (602), so that the first end (601) pushes the limit pin (3) out of the limit opening (4011) to enter the working state, and the first end (601) enters the limit opening (4011) for cooperation, so that the rotating seat (5) is suitable for driving the unlocking structure (4) to rotate for unlocking; The lock housing limiting structure (1) is provided with an escape opening (1021), and at least a portion of the structure of the rotating seat (5) extends to form a mounting portion (501) suitable for passing through the escape opening (1021), and the mounting portion (501) is provided with the first through hole (5011).

2. The emergency unlocking structure according to claim 1, characterized in that: A limiting ring (9) is fixedly arranged in the first through hole (5011), a second through hole (901) is opened on the limiting ring (9), the clutch pin (6) further has a limiting platform (603) arranged corresponding to the limiting ring (9), and the second end (602) is suitable for passing through the second through hole (901) and allowing the limiting ring (9) to limit the limiting platform (603).

3. The emergency unlocking structure according to claim 2, characterized in that: The invention also includes a first elastic member (10), which is sleeved on the first end (601) and installed in the first through hole (5011), one end of the first elastic member (10) abuts against the inner wall of the rotating seat (5), and the other end abuts against the limit platform (603), and the first elastic member (10) applies an elastic force to the clutch pin (6) in a direction away from the limit pin (3).

4. The emergency unlocking structure according to claim 1 or 3, characterized in that: The lock core (2) is provided with a third through hole (201), a limiting protrusion (202) is formed in the third through hole (201), and the limiting pin (3) corresponds to the limiting protrusion (202) to form a limiting matching portion (301), the limiting pin (3) is suitable for being inserted into the third through hole (201) and moving along the axial direction of the third through hole (201), and the limiting protrusion (202) limits the limiting matching portion (301), and the third through hole (201) is also fixed with a limiting cover plate (203).

5. The emergency unlocking structure according to claim 4, characterized in that: The second elastic member (11) is installed in the third through hole (201), one end of the second elastic member (11) abuts against the limit pin (3), and the other end abuts against the limit cover plate (203), and the second elastic member (11) applies an elastic force to the limit pin (3) in a direction close to the clutch pin (6).

6. The emergency unlocking structure according to claim 1, characterized in that: The lock case limiting structure (1) comprises a detachably connected lock case component (101) and a limiting plate (102); the mounting position (1011) is provided on the lock case component (101); and the avoidance opening (1021) is provided on the limiting plate (102).

7. The emergency unlocking structure according to any one of claims 1, 3, 5-6, characterized in that: The end face of the second end (602) is an arc surface, the push surface of the push plate (8) is an arc that matches the arc surface, the push surface is suitable for contacting the second end (602), and the center of the arc is concentric with the center of the rotating seat (5).

8. The emergency unlocking structure according to any one of claims 1, 3, 5-6, characterized in that: The invention also includes a shell (12), a knob (13) is hinged on the rotating seat (5), and a placement groove (1201) is provided on the shell (12) corresponding to the knob (13). When the knob (13) is arranged in the placement groove (1201), the first end (601) corresponds to the position of the limit pin (3).

9. A smart lock, characterized in that: It comprises a back plate (14), and the emergency unlocking structure according to any one of claims 1 to 8, wherein the emergency unlocking structure is arranged on the back plate (14).

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