A universal keyless lock cylinder and smart door lock
By optimizing the clutch structure and position of the keyless lock cylinder and adopting a transmission system that combines a motor drive module with a torsion spring, the problems of complex lock cylinder structure and poor versatility have been solved. Stable and efficient clutch transmission and multi-lock body compatibility have been achieved, meeting the miniaturization and high reliability requirements of smart door locks.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 广东必达保安系统有限公司
- Filing Date
- 2025-07-04
- Publication Date
- 2026-06-30
Smart Images
Figure CN224432243U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a universal keyless lock cylinder and a smart door lock. Background Technology
[0002] With the rapid development of smart home technology, smart door locks have gradually become the mainstream in the market due to their convenience, security, and intelligent management functions. Traditional mechanical lock cylinders usually rely on physical keys for unlocking, which has disadvantages such as inconvenience in carrying, easy loss, or duplication. Keyless lock cylinders, on the other hand, achieve unlocking through electronic control, greatly improving user experience and security. Currently, most keyless lock cylinders on the market use a motor-driven clutch mechanism to realize the transmission of the lock cylinder, but this has problems such as complex structure and poor versatility.
[0003] Therefore, it is necessary to make further improvements. Summary of the Invention
[0004] The purpose of this invention is to overcome the above-mentioned problems and provide a universal keyless lock cylinder and smart door lock, which optimizes the clutch structure and improves the position of the clutch structure, thereby improving its versatility.
[0005] To achieve the above objectives, this utility model provides a universal keyless lock cylinder, which includes a lock cylinder, a clutch pin, a transmission rod, and a drive module. The drive module is installed on the front side of the lock cylinder and is used to drive the clutch pin to move back and forth. The transmission rod is located on the front side of the lock cylinder and corresponds to the lock cylinder. The transmission rod and the drive module are distributed vertically. The transmission rod can rotate axially relative to the lock cylinder. The clutch pin is connected to the transmission rod and can be connected to the lock cylinder under the drive of the drive module, so that the transmission rod can drive the lock cylinder to rotate. The other end of the transmission rod relative to the clutch pin has a first connecting hole, and the other end of the lock cylinder relative to the clutch pin has a second connecting hole.
[0006] In one or more embodiments, the drive module includes a bracket, a push head, a motor, a push rod, and a torsion spring. The push head is slidably connected to the bracket and connected to a clutch pin. The push rod is connected to the motor shaft and extends into the push head. A torsion spring is sleeved on the push rod inside the push head. The push rod is symmetrically provided with a pushing part for pushing the torsion spring. The push head is provided with a limiting structure to restrict the rotation of the torsion spring.
[0007] In one or more embodiments, the limiting structure is a limiting groove, with both ends of the torsion spring extending into the limiting groove, which extends along the sliding direction of the pusher.
[0008] In one or more embodiments, the bracket is provided with a "Y"-shaped elastic clamp, and the transmission rod is connected to the elastic clamp and can rotate axially relative to the elastic clamp.
[0009] In one or more embodiments, the bracket includes a bottom shell and an upper shell, the bottom shell and the upper shell are connected by a snap fastener, and the bottom shell is fixed to the lock cylinder by screws.
[0010] In one or more embodiments, the bracket is provided with a sliding groove, the push head is slidably connected in the sliding groove, and the push head is provided with an elastic clamping part for clamping the clutch pin.
[0011] This application also provides a smart door lock equipped with the aforementioned keyless lock cylinder.
[0012] Compared with the prior art, the advantages of this invention are: by optimizing the layout of the drive module and transmission rod, and adopting a structure in which a motor and a torsion spring drive the clutch pin, stable and efficient clutch transmission is achieved. At the same time, the modular design improves the versatility of the lock cylinder, making it compatible with various lock bodies and meeting the requirements of smart door locks for miniaturization and high reliability. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the keyless lock cylinder in this embodiment;
[0014] Figure 2 for Figure 1 A sectional view through the axis;
[0015] Figure 3 This is an exploded view of the drive module, transmission rod, and other components in this embodiment;
[0016] Figure 4 for Figure 3 A schematic diagram of the structure from another angle. Detailed Implementation
[0017] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.
[0018] Please refer to the appendix. Figure 1-4 This application provides a universal keyless lock cylinder, which includes a lock cylinder 1, a clutch pin 2, a transmission rod 3, and a drive module. The drive module is installed on the front side of the lock cylinder 1 and is used to drive the clutch pin 2 to move back and forth. The transmission rod 3 is located on the front side of the lock cylinder 1 and corresponds to the lock cylinder 4. The transmission rod 3 and the drive module are distributed vertically, which helps to reduce the size and make full use of the space on the front side of the lock cylinder. The transmission rod 3 can rotate axially relative to the lock cylinder 1. The clutch pin 2 is connected to the transmission rod 3 and can be connected to the lock cylinder 4 under the drive of the drive module, so that the transmission rod 3 can drive the lock cylinder 4 to rotate. The other end of the transmission rod 3 relative to the clutch pin 2 is provided with a first connecting hole 5, and the other end of the lock cylinder 4 relative to the clutch pin 2 is provided with a second connecting hole 6. The first connecting hole and the second connecting hole can be selectively used according to the type of smart door lock, thereby improving the versatility of the keyless lock cylinder.
[0019] The drive module includes a bracket 7, a push head 8, a motor 9, a push rod 10, and a torsion spring 11. The push head 8 is slidably connected to the bracket 7 and connected to the clutch pin 2. The push rod 10 is connected to the rotating shaft of the motor 9 and extends into the push head 8. The torsion spring 11 is sleeved on the push rod inside the push head 8. The push rod 10 is symmetrically provided with a pushing part 101 to push the torsion spring 11. The push head 8 is provided with a limiting structure to restrict the rotation of the torsion spring 11. During the process of the motor 9 driving the push rod 10 to rotate, since the torsion spring 11 is spiral and cannot rotate, under the action of the pushing part 101 and the torsion spring 11, the pushing part 101 drives the torsion spring 11 to move axially, thereby driving the push head 8 to move axially through the torsion spring 11, so that the clutch pin connects to or disengages from the lock cylinder, thereby realizing disengagement and engagement.
[0020] The limiting structure is a limiting groove 12, with both ends of the torsion spring 11 extending into the limiting groove 12. The limiting groove 12 extends along the sliding direction of the push head 8. The limiting groove can effectively limit the rotation of the torsion spring without restricting its axial movement.
[0021] The bracket 7 is equipped with a "Y"-shaped elastic clamp 13. The transmission rod 3 is connected to the elastic clamp 13 and can rotate axially relative to the elastic clamp. The transmission rod is installed through the elastic clamp, which has the advantages of easy installation and disassembly. Furthermore, since the elastic clamp is set on the bracket, it is only necessary to fix the bracket to the lock cylinder. Specifically, the bracket 7 includes a bottom shell 71 and an upper shell 72. The bottom shell 71 and the upper shell 72 are connected by a snap-fit, which has the advantages of easy installation and disassembly. The bottom shell 71 is fixed to the lock cylinder 1 by screws.
[0022] The bracket 7 is provided with a sliding groove 14, and the push head 8 is slidably connected in the sliding groove to facilitate the sliding of the push head. The push head 8 is provided with an elastic clamping part 15 for clamping the clutch pin 2, making the installation and removal of the clutch pin easier.
[0023] This application also provides a smart door lock, which includes the keyless lock cylinder described above.
[0024] The above description is only a preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. All equivalent modifications or changes made by those skilled in the art based on the content disclosed in the present utility model should be included in the protection scope recorded in the claims.
Claims
1. A universal keyless lock cylinder, characterized by: The lock cylinder includes a lock cylinder (1), a clutch pin (2), a transmission rod (3), and a drive module. The drive module is installed on the front side of the lock cylinder (1) and is used to drive the clutch pin (2) to move back and forth. The transmission rod (3) is located on the front side of the lock cylinder (1) and corresponds to the lock core (4). The transmission rod (3) and the drive module are distributed vertically. The transmission rod (3) can rotate axially relative to the lock cylinder (1). The clutch pin (2) is connected to the transmission rod (3) and can be connected to the lock core (4) under the drive of the drive module so that the transmission rod (3) can drive the lock core (4) to rotate. The other end of the transmission rod (3) relative to the clutch pin (2) is provided with a first connecting hole (5), and the other end of the lock core (4) relative to the clutch pin (2) is provided with a second connecting hole (6).
2. A universal keyless lock cylinder as defined in claim 1, wherein: The drive module includes a bracket (7), a push head (8), a motor (9), a push rod (10), and a torsion spring (11). The push head (8) is slidably connected to the bracket (7) and connected to the clutch pin (2). The push rod (10) is connected to the rotating shaft of the motor (9) and extends into the push head (8). The push rod inside the push head (8) is fitted with a torsion spring (11). The push rod (10) is symmetrically provided with a pushing part (101) for pushing the torsion spring (11). The push head (8) is provided with a limiting structure to restrict the rotation of the torsion spring (11).
3. A universal keyless lock cylinder as defined in claim 2, wherein: The limiting structure is a limiting groove (12), and the two ends of the torsion spring (11) extend into the limiting groove (12). The limiting groove (12) extends along the sliding direction of the pusher (8).
4. A universal keyless lock cylinder as defined in claim 2, wherein: The bracket (7) is provided with a "Y"-shaped elastic clamp (13), and the transmission rod (3) is connected to the elastic clamp (13) and can rotate axially relative to the elastic clamp.
5. A universal keyless lock cylinder as defined in claim 4, wherein: The bracket (7) includes a bottom shell (71) and an upper shell (72). The bottom shell (71) and the upper shell (72) are connected by a snap fastener. The bottom shell (71) is fixed to the lock cylinder (1) by screws.
6. A universal keyless lock cylinder as defined in claim 2, wherein: The bracket (7) is provided with a sliding groove (14), and the push head (8) is slidably connected in the sliding groove. The push head (8) is provided with an elastic clamping part (15) for clamping the clutch pin (2).
7. An intelligent door lock, characterized by: The smart door lock includes the keyless lock cylinder as described in any one of claims 1-6.