A small intelligent lock cylinder

Abstract

This utility model discloses a small intelligent lock cylinder, including a housing; a lock cylinder shaft rotatably disposed within the housing; an actuating component rotatably disposed within the housing on the axial side of the lock cylinder shaft near the safe side, with one axial end extending out of the housing; a rotating component rotatably disposed on the axial end of the housing near the non-safe side, and drivingly connected to the lock cylinder shaft; a transmission assembly disposed at the connection between the actuating component and the lock cylinder shaft, and configured to drively connect the lock cylinder shaft and the actuating component; a drive assembly disposed within the housing, comprising a drive component disposed within the lock cylinder shaft and drivingly connected to the transmission assembly, a circuit board sequentially disposed on the non-safe side of the lock cylinder shaft, and a generator drivingly connected to the rotating component, wherein the generator and the drive component are both electrically connected to the circuit board. This intelligent lock cylinder features small size and low cost, and is applicable to various locks such as mortise locks, padlocks, and U-locks. It is universally compatible with various door types such as entrance doors, interior doors, old-style residential doors, warehouse doors, fence gates, and roller shutters, and has a wide range of applications.

Description

Technical Field

[0001] This utility model belongs to the field of smart lock technology, specifically relating to a small smart lock cylinder. Background Technology

[0002] Smart locks are locks that differ from traditional mechanical locks, offering greater intelligence in user identification, security, and management. With the development of intelligence and automation, smart locks are increasingly replacing mechanical locks for various doors, including entrance doors, interior doors, older residential doors, warehouse doors, fence gates, and roller shutters, to improve security and ease of use.

[0003] Front doors, interior doors, and doors in older residences typically use smart locks with mortise lock structures, while warehouse doors, fence gates, and roller shutters generally use smart locks with U-lock or padlock structures. Mortise locks, padlocks, and U-locks share some similarities in their unlocking methods, all consisting of a lock cylinder and a lock body. The lock cylinder engages the clutch upon successful verification, allowing rotational torque to be transmitted to the lock body. The lock body then converts this torque into specific unlocking or locking actions to complete the unlocking or locking process. However, due to differences in usage scenarios, not only do these three types of locks differ significantly in size, but there are also model differences between the same type of lock. Therefore, current smart lock production involves manufacturing specific lock cylinders for different lock body types, resulting in significant differences in lock cylinder structures for different types of locks, leading to high labor and material costs. Utility Model Content

[0004] The purpose of this utility model is to disclose a small intelligent lock cylinder, characterized by its small size and low cost. It is applicable to various lock types, including mortise locks, padlocks, and U-locks, and is universally compatible with various door types such as entrance doors, interior doors, old-style residential doors, warehouse doors, fence gates, and roller shutters, making it suitable for a wide range of applications. Furthermore, this intelligent lock cylinder solves the problems of existing intelligent lock cylinders, such as complex structure, inconvenient installation, poor compatibility, and reliance on batteries or external power sources. Through highly integrated design, self-generating technology, and intelligent security control mechanisms, it achieves intelligent lock cylinders that require no external power supply, no built-in battery, high compatibility, and high security.

[0005] To achieve the above objectives, this utility model discloses a small intelligent lock cylinder, comprising: case; Lock cylinder shaft, the lock cylinder shaft is configured to rotatably reside within the housing; A toggle element is configured to be rotatably disposed within the housing, and the toggle element is disposed on the axial side of the lock cylinder shaft near the safety side, with the axial end of the toggle element near the safety side extending out of the housing for transmission connection of the lock tongue. A rotating component is configured to rotatably reside at one axial end of the housing near the non-safe side, and the rotating component is drively connected to a lock core shaft. A transmission assembly is located at the connection between the actuating element and the lock cylinder shaft, and the transmission assembly is configured to drive the lock cylinder shaft and the actuating element. The drive assembly is located inside the housing and includes a generator, a circuit board, and a drive component. The generator and the drive component are electrically connected to the circuit board. The drive component is located inside the lock cylinder shaft and is connected to the transmission assembly. The circuit board and the generator are sequentially located on the axial side of the lock cylinder shaft near the non-safe side, and the generator is connected to the rotating component. The rotating component rotates, driving the lock cylinder shaft to rotate and the generator to generate electricity. When the circuit board is powered on, it can generate control signals to control the start and stop of the drive component, so that the actuating component and the lock cylinder shaft can rotate synchronously or relative to each other via the transmission assembly.

[0006] As an optional implementation, the rotating component includes a rotating shaft and a rotating block. The rotating shaft is configured to be rotatably disposed on the outer axial side of the housing near the unsafe side, and the rotating block is configured to be rotatably disposed on the inner axial end of the housing near the unsafe side and connected to the rotating shaft. Both the generator and the lock core shaft are drivenly connected to the rotating block.

[0007] As an alternative implementation, the rotating block is located on the axial side of the generator near the unsafe side, and the generator's output shaft is connected to the rotating block via a flat structure.

[0008] As an optional implementation, the rotating block and the lock cylinder shaft are connected by a connecting rod. The two axial ends of the connecting rod are respectively connected to the radial sidewall of the rotating block and the radial sidewall of the lock cylinder shaft, and the connecting rod is located on the radial outer side of the generator and the circuit board.

[0009] As an optional implementation, the rotating shaft, rotating block and connecting rod are integrated into one structure. The lock core shaft has a mounting groove corresponding to the connecting rod. The axial end of the connecting rod near the safety side is fixed in the mounting groove. The circuit board has a clearance groove corresponding to the connecting rod.

[0010] As an optional implementation, a limiting groove is provided on the circumference of the rotating block, and a fixing groove is provided on the inner wall of the housing corresponding to the limiting groove. A limiting member is provided between the limiting groove and the fixing groove, the radial outer wall of the limiting member is provided in the fixing groove, and the radial inner wall gap of the limiting member is provided in the limiting groove.

[0011] As an optional implementation, a fixing member is fitted on the radially outer side of the generator, and the fixing member is fixed inside the housing.

[0012] As an optional implementation, the fixing component includes a fixing sleeve and a fixing part. The fixing sleeve is fitted outside the generator, and the fixing part is located on the radial outer wall of the fixing sleeve and connected to the housing. The fixing part is located on the rotation path of the connecting rod, and the connecting rod is configured to rotate at an angle greater than 250°.

[0013] As an alternative implementation, the circuit board is fixed to the shaft end of the lock cylinder near the non-safe side, and a spacer is provided between the generator and the circuit board. The generator and the circuit board are connected by a wire, which is bent and located in the spacer.

[0014] As an optional implementation, the lock cylinder includes an axially connected shaft body and an output part. The shaft body is disposed near the circuit board, the drive member is axially disposed within the shaft body and electrically connected to the circuit board, the output part is disposed near the actuating member, and the transmission assembly is disposed in the output part, and the transmission assembly is configured to drively connect the output part and the actuating member.

[0015] As an optional implementation, the actuating member is configured to be rotatably sleeved outside the output section. The transmission assembly includes a transmission member and a movable member. The movable member is axially disposed inside the output section. A through connecting groove is provided on the side wall of the output section. The transmission member is movably disposed in the connecting groove and connected to the movable member. The movable member is connected to the driving member in a transmission manner, so that the driving member can drive the movable member to push the transmission member part exposed in the connecting groove and connect to the actuating member.

[0016] As an optional implementation, the inner wall of the actuating component is provided with multiple locking positions in the circumferential direction, and the locking positions are set corresponding to the connecting groove, so that when the transmission component is exposed in the connecting groove, it is locked in any of the locking positions.

[0017] As an optional implementation, the driving component is a hollow cup motor, and the movable component includes a rotating wheel. The rotating wheel is configured to rotatably reside within the output section and correspond to the connecting groove. The peripheral sidewall of the rotating wheel has a recess and a protrusion. When the rotating wheel rotates, the protrusion pushes the transmission component part exposed in the connecting groove and connects to the actuating component. A reset component is provided between the rotating wheel and the axial end of the output section.

[0018] As an optional implementation, the actuating component includes an output component configured to rotatably reside within the housing and located on the axial side of the lock cylinder shaft near the safety side. A transmission assembly is configured to drively connect the lock cylinder shaft and the output component. The axial end of the output component near the safety side is connected to a dial wheel or lever, which is used to drively connect the lock tongue.

[0019] As an optional implementation, when the output component is connected to the dial wheel, the axial end of the output component near the safety side extends out of the housing and is fixed inside the dial wheel. The radial outer wall of the dial wheel is provided with a latch, which is used for transmission connection of the locking tongue. When the output component is connected to the lever, the lever is fixed to the shaft end of the output component near the safety side and extends out of the housing to drive the connection of the locking tongue.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows: (1) The rotating component, generator, circuit board, lock cylinder shaft, and actuating component of the intelligent lock cylinder of this utility model are axially connected in sequence. The rotating component and the actuating component extend out from both ends of the housing. The generator, circuit board, and lock cylinder shaft are located inside the housing. The transmission component is located at the connection between the actuating component and the lock cylinder shaft. The driving component is located inside the lock cylinder shaft, so that all components are integrated into the housing. This not only simplifies the structure but also significantly reduces the radial dimension of the intelligent lock cylinder. The size of the intelligent lock cylinder is significantly reduced, which not only helps to reduce costs but also makes it applicable to various locks such as mortise locks, padlocks, and U-locks. This makes the intelligent lock cylinder universally compatible with various door types such as entrance doors, interior doors, old-style residential doors, warehouse doors, fence doors, and roller shutter doors, with a wide range of applications.

[0021] (2) This smart lock cylinder generates electricity by capturing the energy from the user's rotating components, thereby enabling communication, authentication, and unlocking control. Unlocking verification can be completed via a mobile app or other authentication methods, and the unlocking action itself is powered by the user. This self-generating design frees the smart lock cylinder from dependence on external power sources. It achieves the functions of a smart lock without using batteries or energy storage devices with liquid electrolytes, solving the problems of complex structure, inconvenient installation, and the need for regular battery replacement / charging of existing smart locks. Furthermore, existing lock-related components do not need to be adapted for this smart lock cylinder. This smart lock cylinder allows users to directly replace mechanical locks with smart locks without changing any other components such as doors or lock bodies, or any usage habits. This eliminates the burden of carrying and the risk of losing physical keys, and avoids the problems of incompatibility with doors and lock bodies and the need for regular charging / battery replacement of existing smart locks. At the same time, this smart lock cylinder uses electronic circuits and modern cryptographic algorithms as its core authentication methods, which significantly increases the difficulty of cracking compared to traditional mechanical locks, thus significantly enhancing security.

[0022] (3) When authentication fails, the circuit board controls the drive unit to be de-energized and in a stopped state. At this time, the lock cylinder shaft rotates freely and cannot drive the actuating component, thus preventing forced unlocking. When authentication is successful, the circuit board powers on the drive unit and puts it in a start state. The drive unit drives the transmission component to move to the lock cylinder shaft and the actuating component for transmission connection. The rotation of the lock cylinder shaft can synchronously drive the actuating component to rotate, realizing normal unlocking operation. This intelligent control method ensures that only authorized users can perform unlocking operations, and the unlocking action is consistent with that of traditional mechanical lock cylinders. This allows users to enjoy the advantages of smart locks, such as not needing to carry physical keys and high security, without changing their unlocking habits. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a structural schematic diagram of the small intelligent lock cylinder of this utility model; Figure 2 This is a partially exploded view of the small intelligent lock cylinder of this utility model; Figure 3 This is an exploded view of the small intelligent lock cylinder of this utility model; Figure 4 This is a first axial sectional view of the small intelligent lock cylinder of this utility model; Figure 5 This is a second axial sectional view of the small intelligent lock cylinder of this utility model; Figure 6 yes Figure 5 Enlarged view of point A in the middle; Figure 7 This is a radial sectional view of the assembly structure of the lock core shaft and the actuating component of this utility model; Figure 8 This is a radial sectional view of the assembly structure of the rotating component and the housing of this utility model; Figure 9 This is a structural schematic diagram of the intelligent lock cylinder for mortise lock according to this utility model; Figure 10 This is a partially exploded view of the intelligent lock cylinder for mortise locks according to this utility model; Figure 11 This is a structural schematic diagram of the intelligent lock cylinder for U-locks or padlocks according to this utility model.

[0025] Explanation of key figure labels: 1. Housing; 11. Receiving cavity; 12. Fixing groove; 13. Spacing part; 2. Lock cylinder shaft; 21. Shaft body; 211. Mounting groove; 22. Output part; 221. Connecting groove; 3. Actuating component; 31. Output component; 311. Locking position; 32. Dial wheel; 321. Dial tongue; 33. Dial lever; 4. Rotating component; 41. Rotating shaft; 42. Rotating block; 421. Limiting groove; 43. Connecting rod; 5. Transmission assembly; 51. Transmission component; 52. Moving component; 521. Recess; 522. Protrusion; 53. Reset component; 6. Drive assembly; 61. Generator; 611. Output shaft; 62. Circuit board; 621. Clearance groove; 63. Drive component; 64. Wire; 7. Limiting component; 8. Fixing component; 81. Fixing sleeve; 82. Fixing part; 9. Fastener. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0028] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0029] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0030] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0031] The technical solution of this utility model will be further described below with reference to the embodiments and accompanying drawings.

[0032] Please see Figure 1-5 As shown in the figure, this application provides a small smart lock cylinder, including a housing 1, a lock cylinder shaft 2, an actuating component 3, a rotating component 4, a transmission assembly 5, and a drive assembly 6.

[0033] The housing 1 has an axially penetrating receiving cavity 11. The lock cylinder 2 is rotatably disposed within the housing 1, extending axially within the receiving cavity 11 and rotatable about its central axis. An actuating member 3 is rotatably disposed within the housing 1, located on the axial side of the lock cylinder 2 near the safety side. The axial end of the actuating member 3 near the safety side extends out of the housing 1 for transmission connection to the lock tongue. The actuating member 3 includes an output member 31, which is rotatably disposed within the housing 1 and located on the axial side of the lock cylinder 2 near the safety side. The output member 31 extends axially within the receiving cavity 1 and rotatable about its central axis. The axial end of the output member 31 near the safety side is transmission connection to the lock tongue.

[0034] Rotating member 4 is configured to rotatably reside at one axial end of housing 1 near the non-safe side, and is drively connected to lock cylinder 2. Rotating member 4 extends axially and is configured to rotate about its central axis. One end of rotating member 4 near the non-safe side is located outside housing 1, and the other end extends into receiving cavity 11 and connects to lock cylinder 2, so that when the user rotates rotating member 4, lock cylinder 2 rotates synchronously. Transmission assembly 5 is located at the connection between actuating member 3 and lock cylinder 2, and is configured to drively connect lock cylinder 2 and actuating member 3. Specifically, transmission assembly 5 is located at the connection between lock cylinder 2 and output member 31, and is configured to drively connect lock cylinder 2 and output member 31. The drive assembly 6 is housed within the housing 1. The drive assembly 6 includes a generator 61, a circuit board 62, and a drive component 63. Both the generator 61 and the drive component 63 are electrically connected to the circuit board 62. The drive component 63 is located within the lock cylinder shaft 2 and is drive-connected to the transmission assembly 5. The circuit board 62 and the generator 61 are sequentially positioned on the axial side of the lock cylinder shaft 2 near the non-safe side, and the generator 61 is drive-connected to the rotating component 4. The generator 61, circuit board 62, and drive component 63 all extend axially, and the output shaft 611 of the generator 61, the circuit board 62, and the drive component 63 are all configured to rotate around their respective central axes. The rotation of the rotating component 4 drives the lock cylinder shaft 2 to rotate and the generator 61 to generate electricity. When the circuit board 62 is energized, it generates a control signal to control the start and stop of the drive component 63, thereby causing the actuating component 3 to rotate synchronously or relative to the lock cylinder shaft 2 via the transmission assembly 5.

[0035] It should be noted that, taking the entrance door as an example, the non-safety side is the outer side of the door closer to the outside, and the safety side is the inner side of the door closer to the inside. The central axes of the receiving cavity 11, lock cylinder shaft 2, output component 31, rotating component 4, generator 61, circuit board 62, and drive component 63 coincide. Due to the rotational movement, these components can be designed as cylindrical structures, ensuring rotational stability while occupying less space. Based on this, the housing 1 can also be designed as a cylindrical structure, featuring compactness and ease of installation. Of course, in practical applications, each component can also be designed as a square or other structure as needed. There are no special requirements for the shape of each component; the goal is to achieve compactness, low cost, and ease of installation.

[0036] Based on the above structure, the working principle of the smart lock cylinder in this embodiment is as follows: Rotating the rotating component 4 drives the lock cylinder shaft 2 and the output shaft 611 of the generator 61 to rotate. The generator 61 generates electricity and supplies power to the circuit board 62, which sends an authentication signal. The user authenticates via a mobile app. If authentication fails, the circuit board 62 controls the drive component 63 to be de-energized and in a stopped state. The transmission component 5 does not move, and the lock cylinder shaft 2 is separated from the output component 31 of the actuating component 3, meaning that the actuating component 3 cannot be driven to drive the bolt, effectively preventing forced unlocking and ensuring the safety of the smart lock cylinder. If authentication succeeds, the circuit board 62 controls the drive component 63 to be energized and in a started state. The drive component 63 drives the transmission component 5 to move, connecting the lock cylinder shaft 2 and the output component 31. At this time, continuing to rotate the rotating component 4 can drive the actuating component 3 to rotate synchronously through the lock cylinder shaft 2, so that the actuating component 3 drives the bolt to unlock.

[0037] The entire operation process described above is simple and efficient. The drive component 63 responds quickly after being powered on, driving the transmission component 5 to move precisely into position. At this point, the lock cylinder shaft 2 can quickly drive the actuating component 3 to rotate synchronously, thus achieving rapid unlocking. The entire process is smooth and natural, without any stuttering or delay, improving the user experience. This intelligent control method ensures that only authorized users can perform the unlocking operation, and the unlocking action is consistent with that of a traditional mechanical lock cylinder. This allows users to enjoy the advantages of smart locks, such as not needing to carry a physical key and high security, without changing their unlocking habits.

[0038] This smart lock cylinder generates electricity by capturing energy from the user's rotation of a rotating component, thereby enabling communication, authentication, and unlocking control. Unlocking verification can be completed via a mobile app or other authentication methods, with the unlocking action itself powered by the user. This self-generating design eliminates the smart lock cylinder's dependence on external power sources, achieving smart lock functionality without batteries or energy storage devices with liquid electrolytes. This solves the problems of complex structure, inconvenient installation, and the need for regular battery replacement / charging found in existing smart locks. Furthermore, existing lock-related components do not require adaptation for this smart lock cylinder. Users can directly replace mechanical locks with smart locks without changing any other components such as the door or lock body, or any usage habits. This eliminates the burden and risk of losing physical keys, and overcomes the incompatibility issues with doors and lock bodies, as well as the need for regular charging / battery replacement found in existing smart locks. Simultaneously, this smart lock cylinder uses electronic circuits and modern cryptographic algorithms as its core authentication methods, significantly increasing the difficulty of cracking compared to traditional mechanical locks and greatly enhancing security.

[0039] Furthermore, the clutch structure composed of the transmission component 5 and the drive component 63, as well as the circuit board 62 and the generator 61, are all integrated into the housing 1. This highly integrates the functions of the smart lock into the space required to install a conventional mechanical lock cylinder. This integrated design greatly simplifies the structure of the smart lock, reduces the number of parts, and lowers production costs and installation difficulty. In addition, the rotating component 4, generator 61, circuit board 62, lock cylinder shaft 2, and actuating component 3 of the smart lock cylinder are axially connected in sequence. The rotating component 4 and actuating component 3 extend from both ends of the housing 1. The generator 61, circuit board 62, and lock cylinder shaft 2 are located inside the housing 1. The transmission component 5 is located at the connection between the actuating component 3 and the lock cylinder shaft 2, and the drive component 63 is located inside the lock cylinder shaft 2. This integration of all components into the housing 1 not only simplifies the structure but also significantly reduces the radial dimension of the smart lock cylinder. The size of the smart lock cylinder is significantly reduced, which not only helps to reduce costs, but also makes it compatible with a variety of locks such as mortise locks, padlocks, and U-locks. This makes the smart lock cylinder universally compatible with various door types, including entrance doors, interior doors, old-style residential doors, warehouse doors, fence gates, and roller shutters, with a wide range of applications.

[0040] It should be noted that padlocks and U-locks differ in size when applied to different door types, and mortise locks also come in different sizes such as large 50mm, small 50mm, and square. Therefore, this small smart lock cylinder is suitable for various lock types such as mortise locks, padlocks, and U-locks. This means that the smart lock cylinder can be installed on mortise locks, padlocks, and U-locks of suitable size, and its universality is achieved by cooperating with the toggle element 3 and the corresponding bolt transmission structure of the mortise lock, padlock, and U-lock.

[0041] Because the mating structure between the bolt and the actuating element 3 in a mortise lock differs from that in a padlock or U-lock, the structure of the actuating element 3 varies depending on the type of lock it is used in. For example, the bolt of a mortise lock is driven by a dial 32, while the bolt of a padlock or U-lock is driven by two levers 33. Therefore, in this embodiment, the output element 31 is connected to the dial 32 or levers 33 at its axial end near the safety side. The dial 32 or levers 33 are used to drive the bolt. Thus, when the smart lock cylinder is used in a mortise lock, only the actuating element 3 with the dial 32 needs to be installed; when the smart lock cylinder is used in a padlock or U-lock, only the actuating element 3 with the levers 33 needs to be installed.

[0042] See Figure 9-10 When the output component 31 is connected to the dial wheel 32, the axial end of the output component 31 near the safety side extends out of the housing 1 and is fixed inside the dial wheel 32. The radial outer wall of the dial wheel 32 is provided with a latch 321, which is used to drive and connect the lock tongue. The dial wheel 32 has an axial through hole adapted to the output component 31, so that the dial wheel 32 can be sleeved on the output component 31 extending out of the housing 1. Fasteners 9, such as screws and pins, are then used to axially fix the connection between the dial wheel 32 and the output component 31, thereby achieving a stable installation of the dial wheel 32 and the output component 31. Thus, when the lock cylinder shaft 2 and the output component 31 are linked, the latch 321 of the dial wheel 32 can drive the lock tongue to retract, thereby unlocking the door. This structure is suitable for locks on entrance doors, interior doors, and old-style residential doors.

[0043] See Figure 11 When the output component 31 is connected to the lever 33, the lever 33 is fixed to the shaft end of the output component 31 near the safety side and extends out of the housing 1 to drive the locking tongue. Generally, two levers 33 are spaced apart and extend axially out of the housing 1 to cooperate with the locking tongue for unlocking. The lever 33 and the output component 31 can be an integral structure or fixedly connected by screws or other means. This structure is suitable for locks on doors such as warehouse doors and roller shutters.

[0044] It is worth noting that the smart lock cylinder in this embodiment has an authentication function. Its small size may prevent the integration of the authentication module and other structures entirely into the housing 1. In practical applications, some structures can be placed outside the housing 1 as needed. As long as the function of the smart lock cylinder is not affected, the specific installation location can be adjusted according to the site environment. Furthermore, to ensure the structural strength of the smart lock cylinder, the rotating component 4, housing 1, and actuating component 3 are generally made of high-strength metal to prevent damage from violent impacts.

[0045] The specific structure of the smart lock cylinder according to the embodiments of this application will be described below.

[0046] See Figure 2-5The rotating component 4 includes a rotating shaft 41 and a rotating block 42. The rotating shaft 41 is rotatably located on the outer axial side of the housing 1 near the non-safe side, and the rotating block 42 is rotatably located on the inner axial side of the housing 1 near the non-safe side and connected to the rotating shaft 41. The generator 61 and the lock cylinder shaft 2 are both driven by the rotating block 42. When the user rotates the rotating shaft 41, the rotating shaft 41 and the rotating block 42 move synchronously, thereby driving the output shaft 611 of the generator 61 and the lock cylinder shaft 2 to rotate synchronously, so as to perform the generator 61's power generation action and the subsequent authentication and unlocking action.

[0047] The generator 61 includes a generator body and a gearbox. The generator body and the gearbox are axially connected. The gearbox is located near the rotating block 42, and its output shaft 611 is drively connected to the rotating block 42. The generator body is located near the circuit board 62, and the generator body is electrically connected to the circuit board 62. Figure 8 The rotating block 42 is located on the axial side of the generator 61 near the unsafe side. The output shaft 611 of the generator 61 is connected to the rotating block 42 through a flat structure. The rotating block 42 is sleeved on the output shaft 611 of the generator 61. The two are linked through the flat structure so that when the rotating block 42 rotates, it can drive the output shaft 611 to rotate synchronously to generate electricity.

[0048] The rotating block 42 is connected to the lock cylinder shaft 2 via a connecting rod 43. The two axial ends of the connecting rod 43 are respectively connected to the radial sidewalls of the rotating block 42 and the lock cylinder shaft 2, and the connecting rod 43 is located radially outside the generator 61 and the circuit board 62. The connecting rod 43 extends from the rotating block 42 through the generator 61 and the circuit board 62 to the lock cylinder shaft 2, which is fixedly connected. The lock cylinder shaft 2 includes an axially connected shaft body 21 and an output part 22. The shaft body 21 is located close to the circuit board 62. The driving member 63 is axially located inside the shaft body 21 and electrically connected to the circuit board 62. The output part 22 is located close to the actuating member 3. The transmission assembly 5 is located in the output part 22 and is configured to drive the output part 22 and the actuating member 3. The shaft 21 and the output part 22 are integrated into one structure. The shaft 21 is equipped with a drive component 63, and the non-safety end of the shaft 21 is fixedly connected to the circuit board 62 by fasteners such as screws. The circuit board 62 can be in the form of a flat cylindrical structure, which is fitted to the shaft 21 to make the internal structure of the housing 1 more integrated.

[0049] The rotating shaft 41, rotating block 42, and connecting rod 43 are integrated into a single structure. The lock cylinder shaft 2 has a mounting groove 211 corresponding to the connecting rod 43. The axial end of the connecting rod 43 near the safety side is fixed to the mounting groove 211. The circuit board 62 has a clearance groove 621 corresponding to the connecting rod 43. The integrated rotating component 4 has higher structural strength, which is more conducive to improving the security of the smart lock cylinder. The mounting groove 211 has a shaft 21. The safety side end of the connecting rod 43 is fixed to the mounting groove 211 by fasteners such as pins. The radial dimension of the generator 61 can be smaller than that of the shaft 21 and rotating block 42, so that the connecting rod 43 can extend radially outward from the generator 61 to the connecting shaft 21. To ensure that the circuit board 62 has more functions, the radial dimension of the circuit board 62 can be larger than that of the generator 61 and match the radial dimension of the shaft 21. In this case, the clearance groove 621 on the circuit board 62 allows for the installation of the connecting rod 43.

[0050] The smart lock cylinder generates electricity by capturing the energy from the user's rotation of the rotating component 4, which is essential for subsequent authentication and unlocking actions. Therefore, the stable rotation of the rotating component 4 is crucial. Combined with... Figure 6 and Figure 8 A limiting groove 421 is formed on the periphery of the rotating block 42, and a fixing groove 12 is formed on the inner wall of the housing 1 corresponding to the limiting groove 421. A limiting member 7 is provided between the limiting groove 421 and the fixing groove 12. The radial outer wall of the limiting member 7 is located in the fixing groove 12, and the radial inner wall gap of the limiting member 7 is located in the limiting groove 421. The rotating member 4 is rotatably connected to the housing 1, and it is necessary to ensure that the rotating block 42 and the connecting rod 43 are stably placed in the receiving cavity 11 without affecting the rotation effect of the rotating member 4. This embodiment of the application achieves the desired result through the cooperation of the limiting groove 421, the limiting member 7, and the fixing groove 12. The limiting member 7 can be a structure such as a snap ring, and its radial outer wall abuts against the radial groove wall of the fixing groove 12 to ensure the structural stability of the limiting member 7. The radial inner wall of the limiting member 7 is placed in the limiting groove 421, and the limiting member 7 and each groove wall of the limiting groove 421 are in clearance fit. This can achieve the axial limiting of the rotating block 42 by the limiting member 7 without affecting the rotation of the rotating block 42, thereby ensuring the stability of the axial position of the rotating member 4 and its free rotation.

[0051] As for generator 61, its output shaft 611 is limited by rotating block 42, and the generator body and gearbox still need to be stably assembled within the receiving cavity 11. Based on this, see [reference needed]. Figure 1-5 A fixing member 8 is fitted on the radial outer side of the generator 61, and the fixing member 8 is fixedly installed inside the housing 1. The fixing member 8 is located on the outside of the generator body or the gearbox, and the fixing member 8 is fixedly assembled with the housing 1 by fasteners such as screws. The housing 1 is fixedly installed in the lock body. Therefore, the stable assembly of the generator 61 can be ensured by the housing 1 and the fixing member 8.

[0052] The fixing component 8 includes a fixing sleeve 81 and a fixing part 82. The fixing sleeve 81 is fitted onto the outside of the generator 61, and the fixing part 82 is located on the radial outer wall of the fixing sleeve 81 and connected to the housing 1. The fixing part 82 is located on the rotation path of the connecting rod 43, and the connecting rod 43 is configured to rotate at an angle greater than 250°. Based on the cylindrical structure of the generator 61, the fixing sleeve 81 can be an adapter structure to be fixedly fitted onto the outside of the generator 61. The fixing part 82 can be a square, strip, or other structure, extending radially toward the inner wall of the receiving cavity 11, and is fixedly connected to the housing 1 by fasteners such as screws 9.

[0053] Since the fixing part 82 extends from the fixing sleeve 81 radially outward of the generator 61, and the connecting rod 43 is located outside the fixing sleeve 81 of the generator 61, and the connecting rod 43 rotates circumferentially around the central axis along with the rotating block 42 and the rotating shaft 41, the assembly structure of the fixing part 82, the fastener 9, and the housing 1 is located on the rotation path of the connecting rod 43, making it impossible for the connecting rod 43 to complete a 360° rotation. For safety reasons, locks installed on doors generally have at least one safety mechanism. Therefore, the dimensions of the fixing part 82 in this embodiment need to ensure that the rotation angle of the connecting rod 43 is greater than 250° to ensure that the first safety mechanism of commonly used door locks can be unlocked before unlocking. Of course, for cases with a relatively short safety travel, locks with two or even three safety mechanisms can be applied as appropriate.

[0054] Furthermore, circuit board 62 is fixed to the shaft end of lock cylinder 2 near the non-safe side. A spacer 13 is provided between generator 61 and circuit board 62. Generator 61 and circuit board 62 are connected by wire 64, which is bent within the spacer 13. When rotating component 4 drives lock cylinder 2 and output shaft 611 to rotate, the generator body and gearbox do not rotate. When certification is not passed, drive component 63, circuit board 62, and transmission assembly 5 rotate with lock cylinder 2, meaning there is relative motion between generator 61 and circuit board 62. The output wire of drive component 63 and the wire 64 of generator 61 can be directly soldered to circuit board 62. The spacer 13 allows wire 64 to have a length allowance in a fully curved or similar shape within the spacer, preventing damage or breakage when generator 61 and circuit board 62 rotate relative to each other. Wire 64 can be made of silicone wire with a larger diameter, providing better fatigue resistance.

[0055] For the transmission structure between the lock cylinder shaft 2 and the actuating element 3, please refer to... Figure 3-5 as well as Figure 7The actuating element 3 is configured to rotatably sleeve outside the output section 22. The transmission assembly 5 includes a transmission element 51 and a movable element 52. The movable element 52 is axially disposed inside the output section 22. A through connecting groove 221 is provided on the side wall of the output section 22. The transmission element 51 is movably disposed in the connecting groove 221 and connected to the movable element 52. The movable element 52 is connected to the driving element 63 so that the driving element 63 can drive the movable element 52 to push the transmission element 51 partially exposed in the connecting groove 221 and connect to the actuating element 3. Rotating the rotating element 4 drives the lock cylinder shaft 2 to rotate and drives the generator 61 to generate electricity. If the authentication is successful, the circuit board 62 controls the driving element 63 to be energized to drive the movable element 52 to move until the transmission element 51 partially exposed in the connecting groove 221 and connect to the output section 31. Thus, the transmission element 51 is used to realize the linkage between the output section 22 and the output section 31. At this time, the rotation of the lock cylinder shaft 2 can synchronously drive the actuating element 3 to rotate.

[0056] The output component 31 is sleeved outside the output section 22, while the transmission assembly 5 is located inside the output section 22. This improves the tightness of the connection between the output component 31 and the output section 22, further reducing the size of the smart lock cylinder and improving the linkage between the actuating component 3 and the lock cylinder shaft 2. Both the driving component 63 and the movable component 52 are located inside the output section 22, and the transmission component 51 is movably disposed in the connecting groove 221 on the side wall of the output section 22. This compact structural design reduces mutual interference between components. During long-term use, the components are less susceptible to external factors such as dust and moisture, thus reducing the probability of malfunctions and extending the service life of the smart lock cylinder. Furthermore, due to the small size of the movable component 52, the power consumption of driving it is low. In a battery-free smart lock cylinder, the electrical energy generated by the smart lock cylinder's self-generated power is sufficient to drive the movable component 52 into position, ensuring a stable transmission connection for the transmission component 51. This not only reduces the requirements for the driving component 63 but also improves the engagement reliability between the lock cylinder shaft 2 and the actuating component 3. The clutch structure, composed of drive component 63, moving component 52, and transmission component 51, occupies less space, making the entire smart lock cylinder structure more compact. This miniaturized design not only facilitates the installation and maintenance of the smart lock cylinder, but also adapts to the installation needs of door locks of different sizes, improving the product's versatility and providing space for possible future functional expansion.

[0057] When the lock cylinder shaft 2 is rotated to drive the actuating element 3, the transmission element 51 can be precisely and easily aligned. Due to its reasonable structural design, the transmission element 51 can be smoothly partially exposed in the connecting groove 221 under the push of the movable element 52, and tightly connected with the actuating element 3 to form a stable transmission relationship. This precise transmission connection method avoids the problem of unlocking or locking failure due to inaccurate transmission, thus improving the reliability of the smart lock cylinder. Furthermore, the power consumption of driving the transmission element 51 and the movable element 52 is very low, and the power requirement of the generator 61 is low. Moreover, once the user's identity is verified, the energy demand of driving the transmission element 51 and the movable element 52 is simultaneously met, and the clutch between the lock cylinder shaft 2 and the actuating element 3 can be quickly engaged without complicated alignment. It features low energy demand and a good user experience.

[0058] The inner wall of the actuating component 3 is provided with multiple locking positions 311, which are set corresponding to the connecting groove 221 so that when the transmission component 51 is partially exposed in the connecting groove 221, it can be locked in any of the locking positions 311. This multi-locking position 311 design provides a variety of connection options. Compared with a single locking position 311 connection, the multi-locking position 311 can select the nearest locking position 311 for connection according to the actual position and force of the transmission component 51. This significantly reduces the circumferential stroke required to establish transmission between the transmission component 51 and the locking position 311 after certification, thereby effectively reducing the power consumption and time of clutch engagement and providing users with a better user experience.

[0059] In this embodiment, the transmission component 51 is a ball bearing structure, which has low frictional resistance, small size, small space occupation, and is easy to adjust the angle to be located within the locking position 311, thereby improving the accuracy of the transmission connection between the output part 22 and the output component 31.

[0060] The driving component 63 is a hollow cup motor. The movable component 52 includes a rotating wheel, which is rotatably disposed within the output section 22 and corresponds to the connecting groove 221. The peripheral sidewall of the rotating wheel has a recess 521 and a protrusion 522. The rotation of the rotating wheel allows the protrusion 522 to push the transmission component 51 partially exposed in the connecting groove 221 and connect to the actuating component 3. A reset component 53 is provided between the rotating wheel and the axial end of the output section 22. In the initial state, the transmission component 51 is placed in the recess 521 and separated from the locking position 311. When the rotating component 4 is rotated to unlock and authentication is successful, the circuit board 62 controls the hollow cup motor to drive the rotating wheel to rotate, so that the protrusion 522 of the rotating wheel aligns with the transmission component 51, thereby pushing the transmission component 51 partially exposed in the connecting groove 221 and connecting to any locking position 311. This allows the rotation of the lock cylinder shaft 2 to drive the actuating component 3 to rotate synchronously through the transmission component 51, and puts the reset component 53 in a stretched state. The reset element 53 can be a torsion spring. When the unlocking is completed, the rotating element 4 is released, the hollow cup motor is de-energized, and the elasticity of the reset element 53 drives the rotating wheel to reset, so that the transmission element 51 can be reset to the recess 521 and separated from the locking position 311, and the lock core shaft 2 is separated from the actuating element 3.

[0061] In this embodiment, the movable component 52 is a rotating wheel. By rotating the wheel and utilizing the protrusions 522 and recesses 521 on its peripheral sidewalls, it can precisely switch between two working states. Secondly, the rotating wheel makes full use of the space of the output section 22, making the internal structure of the smart lock cylinder more compact. This compact design facilitates the miniaturization of the smart lock cylinder and makes it easy to install in lock bodies of different sizes, especially suitable for applications with high space requirements. Thirdly, the rotating wheel integrates the protrusions 522 and recesses 521 into one unit, allowing for simple rotational switching between transmission and disengagement functions, reducing the use of additional components and improving component integration. This not only reduces the manufacturing cost of the smart lock cylinder but also simplifies the installation and maintenance process. Finally, the rotating wheel precisely switches between transmission and disengagement states using the protrusions 522 and concave parts 521. Its structural design and movement are simple and direct. During rotation, only a small amount of friction and inertial force needs to be overcome to complete the state transition, significantly reducing the power consumption of the rotating wheel drive. Furthermore, the rolling contact transmission between the rotating wheel and the transmission component 51 has low friction, reducing energy loss due to friction. When driving the rotating wheel, only a small driving force is needed to overcome the rolling friction, which significantly reduces drive power consumption compared to sliding friction transmission. The drive component 63 uses a hollow cup motor, which overcomes the cogging effect of ordinary motors and has a small size. Its cooperation with the rotating wheel further reduces the volume of the transmission component 5 and the drive component 6, thereby reducing the size of the smart lock cylinder.

[0062] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A compact smart lock cylinder, characterized by, include: Shell (1); Locking cylinder (2), the locking cylinder (2) is configured to be rotatably disposed within the housing (1); A toggle member (3) is configured to be rotatably disposed within the housing (1), and the toggle member (3) is disposed on the axial side of the lock cylinder shaft (2) near the safety side, with one axial end of the toggle member (3) extending out of the housing (1) for transmission connection of the lock tongue; Rotating component (4), the rotating component (4) is configured to be rotatably disposed at one axial end of the housing (1) near the non-safe side, and the rotating component (4) is throttle connected to the lock core shaft (2). A transmission assembly (5) is provided at the connection between the actuating member (3) and the lock cylinder shaft (2), and the transmission assembly (5) is configured to drive the lock cylinder shaft (2) and the actuating member (3). The drive assembly (6) is located inside the housing (1). The drive assembly (6) includes a generator (61), a circuit board (62), and a drive component (63). The generator (61) and the drive component (63) are electrically connected to the circuit board (62). The drive component (63) is located inside the lock cylinder shaft (2) and is connected to the transmission assembly (5). The circuit board (62) and the generator (61) are located sequentially on the axial side of the lock cylinder shaft (2) near the non-safe side. The generator (61) is connected to the rotating component (4). The rotating component (4) rotates and drives the lock cylinder shaft (2) to rotate and the generator (61) to generate electricity. The circuit board (62) is powered on and can generate a control signal to control the start and stop of the driving component (63) so that the actuating component (3) and the lock cylinder shaft (2) can rotate synchronously or relative to each other via the transmission assembly (5).

2. The compact smart lock cylinder of claim 1, wherein: The rotating component (4) includes a rotating shaft (41) and a rotating block (42). The rotating shaft (41) is rotatably disposed on the outer side of the housing (1) near the unsafe side. The rotating block (42) is rotatably disposed on the inner end of the housing (1) near the unsafe side and connected to the rotating shaft (41). The generator (61) and the lock core shaft (2) are both connected to the rotating block (42).

3. The compact smart lock cylinder of claim 2, wherein: The rotating block (42) is located on the axial side of the generator (61) near the unsafe side, and the output shaft (611) of the generator (61) is connected to the rotating block (42) through a flat structure.

4. The compact smart lock cylinder of claim 2, wherein: The rotating block (42) is connected to the lock core shaft (2) via a connecting rod (43). The two axial ends of the connecting rod (43) are respectively connected to the radial sidewall of the rotating block (42) and the radial sidewall of the lock core shaft (2), and the connecting rod (43) is located on the radial outer side of the generator (61) and the circuit board (62).

5. The compact smart lock cylinder of claim 4, wherein: The rotating shaft (41), the rotating block (42) and the connecting rod (43) are an integral structure. The lock core shaft (2) has an installation groove (211) corresponding to the connecting rod (43). The axial end of the connecting rod (43) near the safety side is fixed in the installation groove (211). The circuit board (62) has a clearance groove (621) corresponding to the connecting rod (43).

6. The compact smart lock cylinder according to any one of claims 2-5, wherein: The rotating block (42) has a limiting groove (421) on its periphery. The inner wall of the housing (1) has a fixing groove (12) corresponding to the limiting groove (421). A limiting member (7) is provided between the limiting groove (421) and the fixing groove (12). The radial outer wall of the limiting member (7) is located in the fixing groove (12), and the radial inner wall gap of the limiting member (7) is located in the limiting groove (421).

7. The miniature smart lock cylinder according to claim 4, characterized in that: The generator (61) is fitted with a fixing member (8) on its radial outer side, and the fixing member (8) is fixed inside the housing (1).

8. The compact smart lock cylinder of claim 7, wherein: The fixing member (8) includes a fixing sleeve (81) and a fixing part (82). The fixing sleeve (81) is sleeved on the outside of the generator (61). The fixing part (82) is located on the radial outer wall of the fixing sleeve (81) and connected to the housing (1). The fixing part (82) is located on the rotation path of the connecting rod (43), and the connecting rod (43) is configured to rotate at an angle greater than 250°.

9. The miniature smart lock cylinder according to claim 1, characterized in that: The circuit board (62) is fixed to the shaft end of the lock cylinder (2) near the non-safe side. A spacer (13) is provided between the generator (61) and the circuit board (62). The generator (61) and the circuit board (62) are connected by a wire (64), and the wire (64) is bent and located in the spacer (13).

10. The compact smart lock cylinder of claim 1, wherein: The lock cylinder shaft (2) includes an axially connected shaft body (21) and an output part (22). The shaft body (21) is located near the circuit board (62). The drive member (63) is axially located inside the shaft body (21) and electrically connected to the circuit board (62). The output part (22) is located near the actuating member (3). The transmission assembly (5) is located in the output part (22) and is configured to drively connect the output part (22) and the actuating member (3).

11. The compact smart lock cylinder of claim 10, wherein: The actuating member (3) is configured to be rotatably sleeved outside the output part (22). The transmission assembly (5) includes a transmission member (51) and a movable member (52). The movable member (52) is axially disposed inside the output part (22). A through connecting groove (221) is provided on the side wall of the output part (22). The transmission member (51) is movably disposed in the connecting groove (221) and connected to the movable member (52). The movable member (52) is connected to the driving member (63) so that the driving member (63) can drive the movable member (52) to push the transmission member (51) part exposed in the connecting groove (221) and connect to the actuating member (3).

12. The compact smart lock cylinder of claim 11, wherein: The inner wall of the actuating member (3) is provided with multiple locking positions (311) in the circumferential direction. The locking positions (311) are provided corresponding to the connecting groove (221) so that when the transmission member (51) is partially exposed in the connecting groove (221), it is locked in any of the locking positions (311).

13. The compact smart lock cylinder of claim 11, wherein: The driving component (63) is a hollow cup motor. The movable component (52) includes a rotating wheel, which is configured to rotatably reside within the output section (22) and correspond to the connecting groove (221). The peripheral sidewall of the rotating wheel is provided with a recess (521) and a protrusion (522). The rotation of the rotating wheel can push the transmission component (51) through the protrusion (522) to partially protrude from the connecting groove (221) and connect to the actuating component (3). A reset component (53) is provided between the rotating wheel and the axial end of the output section (22).

14. The compact, smart lock cylinder of any of claims 1-5 and 7-13, wherein: The actuating member (3) includes an output member (31), which is configured to be rotatably disposed within the housing (1) and is disposed on the axial side of the lock cylinder shaft (2) near the safety side. The transmission assembly (5) is configured to drively connect the lock cylinder shaft (2) and the output member (31). The axial end of the output member (31) near the safety side is connected to a dial wheel (32) or a lever (33), which is used to drively connect the lock tongue.

15. The compact smart lock cylinder according to claim 14, wherein: When the output component (31) is connected to the dial wheel (32), the axial end of the output component (31) near the safety side extends out of the housing (1) and is fixed inside the dial wheel (32). The radial outer wall of the dial wheel (32) is provided with a tongue (321), which is used for transmission connection of the locking tongue. When the output component (31) is connected to the lever (33), the lever (33) is fixed to the shaft end of the output component (31) near the safety side and extends out of the housing (1) to drive the connection of the locking tongue.

Images