Hook unlocking structure of intelligent lock
By improving the sliding pinion design and clutch module structure of the sliding rack, the problems of sliding rack wobbling and large space occupation were solved, and the sliding stability and cost-effectiveness were improved.
Patent Information
- Application Number
- CN202422273304.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-18
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-09-18
AI Technical Summary
The existing smart lock's hook unlocking structure suffers from problems such as wobbling due to the gap between the sliding rack and the sliding column, severe mechanical wear, and the large space occupied by the motor and swing gear, resulting in high cost.
The design employs a triangularly distributed sliding column to increase the stability of the sliding rack. A second sliding hole is provided on the extension to cooperate with the third sliding column. Combined with the clutch module and the magnet, a Hall element is sensed on the extension to shorten the magnet's running distance and reduce the PCB board area.
It improves the sliding stability of the sliding rack, reduces the probability of mechanical wear, reduces the PCB board area, lowers costs, and makes the structure more compact and applicable to a wider range of situations.
Smart Images
Figure CN223482453U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lock technology, and in particular to a hook unlocking structure for a smart lock. Background Technology
[0002] Currently, most smart locks on the market adopt, such as Figure 1 The hook unlocking structure shown has a sliding rack 3 with strip-shaped sliding holes 2 near its upper and lower ends. A sliding post 4, which slides in conjunction with the strip-shaped sliding holes 2, is located on the inner wall of the outer casing 1. Two limiting posts are located on the side of the sliding rack 3 near the outer casing 1. A swing gear 5 is rotatably connected to the inner wall of the outer casing 1. A swing rod 6 is located on one side of the swing gear 2, with the other end of the swing rod 6 positioned between the two swing rods 6. When unlocking, the motor drives the swing gear 2 to rotate, which in turn causes the swing rod 6 to drive the sliding rack 3 to slide downwards. Because the sliding rack 3 meshes with the gear on the shaft of the hook 7, the hook 7 rotates clockwise to unlock. The traditional unlocking method described above uses a single sliding rack drive. Due to the gap between the sliding rack 3 and the sliding post 4, when the swing rod 6 moves the sliding rack... During process 3, the sliding rack 3 will wobble left and right. With long-term use, mechanical wear will cause the sliding rack 3 to become increasingly loose. When its wobble angle is too large, the sliding rack 3 and the sliding column 4 are prone to jamming, affecting the up and down movement of the sliding rack 3 and making it impossible to unlock. At the same time, the traditional hook unlocking structure is driven by a large gear between the motor and the swing gear 5, without a clutch module 11. This not only occupies more space, but also cannot actively perform clutch operation. In addition, the traditional hook unlocking structure places the magnet 12, which is sensed by the Hall element on the PCB board, on the hook 7. In this way, the magnet 12 travels a long distance during the unlocking and locking process, requiring a large PCB board to install the Hall element, which increases the cost. Utility Model Content
[0003] In view of the shortcomings of the existing technology, this utility model provides a hook unlocking structure for a smart lock.
[0004] This utility model provides a hook unlocking structure for a smart lock, including a housing, a sliding rack, a swing gear, and a hook. A swing rod is fixedly connected to one side of the swing gear, and the swing rod is arranged perpendicular to the rotation plane of the swing gear. Three sliding pillars are arranged in a triangular distribution on the inner side wall of the housing. Two first sliding holes are provided on the sliding rack, and the two first sliding holes are respectively slidably engaged with two corresponding sliding pillars. An extension is provided on one side of the sliding rack, and a second sliding hole is provided on the extension, which is slidably engaged with a third sliding pillar. A guide hole is also provided on the extension, and the guide hole is slidably engaged with the swing rod. The sliding rack meshes with a gear on the hook's rotating shaft.
[0005] Furthermore, both the first sliding hole and the second sliding hole are arranged in a vertical direction, and the guide hole is located between the first sliding hole and the second sliding hole.
[0006] Furthermore, the guide hole is configured as an arc shape.
[0007] Furthermore, a clutch module, a transition gear, and a motor are also installed on the inner sidewall of the housing. The drive gear on the motor is connected to the clutch module through the transition gear, and the clutch module meshes with the oscillating gear.
[0008] Furthermore, the clutch module includes a gear shaft, one end of which is coaxially fixed to a first gear, and the other end of which passes through and rotates a second gear. The first gear meshes with a transition gear, and the second gear meshes with a swing gear. Both the first gear and the second gear have locking teeth on opposite sides. The end of the gear shaft away from the first gear extends through to the outside of the housing.
[0009] Furthermore, a magnet is fixedly disposed on the extension, and a PCB board is mounted on the outer casing, with Hall elements corresponding to the positions of the magnets mounted on the PCB board.
[0010] Compared with the prior art, the present invention has the following beneficial effects:
[0011] 1. By setting an extension and providing a second sliding hole on it to slide in cooperation with a third sliding post, compared with the prior art which uses two sets of sliding posts and strip-shaped sliding holes, the sliding of the sliding rack in this application is more stable, reducing the shaking during the up and down displacement of the sliding rack, thereby reducing the probability of being unable to unlock due to jamming between the sliding rack and the sliding post.
[0012] 2. By setting magnets on the extension, the area of the PCB board used is reduced, thus lowering the cost.
[0013] 3. By setting up a clutch module, not only can the clutch driven by the motor be realized for intelligent mechanical inspection and maintenance, but the relative positions of the motor and the swing gear can also be flexibly arranged so that the space inside the housing can be effectively and rationally utilized. Compared with the prior art, the structure of this application is more compact, so the model can be made smaller and the application range is wider. Attached Figure Description
[0014] Figure 1 A schematic diagram of the hook-type unlocking structure of a traditional smart lock;
[0015] Figure 2 This is an exploded structural diagram of the present invention;
[0016] Figure 3 It is a structural diagram of the utility model;
[0017] Figure 4 This is a schematic diagram of the structure of components such as the sliding rack, extension, and magnet in this utility model.
[0018] Figure 5 This is a schematic diagram of the clutch module in this utility model.
[0019] In the above figures: 1. outer shell, 2. strip-shaped sliding hole, 3. sliding rack, 4. sliding column, 5. swing gear, 6. rocker arm, 7. hook, 8. extension, 9. first sliding hole, 10. second sliding hole, 11. guide hole, 12. clutch module, 13. transition gear, 14. motor, 15. gear shaft, 16. first gear, 17. second gear, 18. locking tooth, 19. magnet. Detailed Implementation
[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.
[0021] like Figure 1-Figure 5 As shown, a hook unlocking structure for a smart lock includes a housing 1, a sliding rack 3, a swing gear 5, and a hook 7. A swing rod 6 is fixedly connected to one side of the swing gear 5, and the swing rod 6 is arranged perpendicular to the rotation surface of the swing gear 5. Three sliding pillars 4 are arranged in a triangular distribution on the inner side wall of the housing 1. Two first sliding holes 9 are provided on the sliding rack 3, and the two first sliding holes 9 are respectively slidably engaged with the corresponding two sliding pillars 4. An extension 8 is provided on one side of the sliding rack 3, and a second sliding hole 10 is provided on the extension 8. The second sliding hole 10 is slidably engaged with the third sliding pillar 4. A guide hole 11 is also provided on the extension 8, and the guide hole 11 is slidably engaged with the swing rod 6. The sliding rack 3 meshes with a gear on the rotating shaft of the hook 7.
[0022] like Figure 4 As shown, both the first sliding hole 9 and the second sliding hole 10 are arranged in the vertical direction, and the guide hole 11 is located between the first sliding hole 9 and the second sliding hole 10.
[0023] Specifically, the guide hole 11 is set to be arc-shaped, the sliding rack 3 and the rocker arm 6 have an arc-shaped trajectory, the swing angular velocity of the rocker arm 6 is synchronized with the movement speed of the sliding rack 3 of the slide rail, the slide rail runs smoothly and there will be no jamming;
[0024] The inner wall of the outer casing 1 is also equipped with a clutch module 12, a transition gear 13 and a motor 14. The drive gear on the motor 14 is connected to the clutch module 12 through the transition gear 13. The clutch module 12 meshes with the swing gear 5.
[0025] like Figure 3 , Figure 5As shown, the clutch module 12 includes a gear shaft 15. One end of the gear shaft 15 is coaxially fixed to a first gear 16, and the other end of the gear shaft 15 passes through and rotates a second gear 17. The first gear 16 meshes with a transition gear 13, and the second gear 17 meshes with a sway gear 5. Both the first gear 16 and the second gear 17 have locking teeth 18 on opposite sides. The end of the gear shaft 15 away from the first gear 16 extends through to the outside of the housing 1. Furthermore, a circular hole can be provided on the end face of the gear shaft 15 near the first gear 16, and a spring and a sliding rod are installed inside the circular hole. The two ends of the spring are... The slide rod is connected to the bottom wall of the circular hole and one end of the slide rod. The end of the slide rod near the spring restricts its sliding within the circular hole, while the other end of the slide rod abuts against the inner wall of the outer casing 1. Pressing the gear shaft 15 into the outer casing 1 disengages the locking teeth 18 on the first gear 16 and the second gear 17, putting the clutch module 12 in the "disengaged" state, disconnecting the drive connection of the motor 14 to the hook 7. Releasing the gear shaft 15, under the action of the spring, restores the engagement of the locking teeth 18 on the first gear 16 and the second gear 17, putting the clutch module 12 in the "engaged" state, and restoring the drive connection of the motor 14 to the hook 7.
[0026] like Figure 4 As shown, a magnet 19 is fixedly mounted on the extension 8, and a PCB board is mounted on the outer casing 1. Hall elements corresponding to the positions of the magnet 19 are mounted on the PCB board. The rotation of the motor is controlled by sensing the Hall elements on the PCB board through the magnet 19 on the extension 8. This is prior art and will not be described in detail in this application. It should be noted that by setting the magnet 19 on the extension 8, compared with the traditional method of setting it on the hook 7, the running distance of the magnet 12 in the opening and closing process is effectively shortened, avoiding the need to set it on a large PCB board, reducing the area of the PCB board and reducing costs.
[0027] This invention provides an extension 8 on one side of the sliding rack 3, and a second sliding hole 10 on the extension 8 to slide in cooperation with a third sliding column 4. Compared with the prior art which uses two sets of sliding columns 4 and strip-shaped sliding holes 2, the sliding of the sliding rack 3 in this application is more stable, reducing the shaking during the up and down displacement of the sliding rack 3, thereby reducing the probability of being unable to unlock due to jamming between the sliding rack 3 and the sliding column 4. This application reduces the area of the PCB board and lowers the cost by providing a magnet 19 on the extension 8. In addition, by providing a clutch module 12, not only can the clutch driven by the motor 14 be realized for intelligent mechanical inspection and maintenance, but the relative positions of the motor 14 and the swing gear 5 can also be flexibly arranged so that the space inside the housing 1 can be effectively and rationally utilized.
[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A hook-type unlocking structure for a smart lock, comprising a housing (1), a sliding rack (3), a swing gear (5), and a hook (7), characterized in that: A swing rod (6) is fixedly connected to one side of the swing gear (5). The swing rod (6) is set perpendicular to the rotation surface of the swing gear (5). Three sliding pillars (4) are set on the inner side wall of the outer shell (1). The three sliding pillars (4) are distributed in a triangle. Two first sliding holes (9) are set on the sliding rack (3). The two first sliding holes (9) are respectively slidably engaged with the corresponding two sliding pillars (4). An extension (8) is set on one side of the sliding rack (3). A second sliding hole (10) is set on the extension (8). The second sliding hole (10) is slidably engaged with the third sliding pillar (4). A guide hole (11) is also set on the extension (8). The guide hole (11) is slidably engaged with the swing rod (6). The sliding rack (3) meshes with the gear on the rotating shaft of the hook (7).
2. The hook unlocking structure of a smart lock according to claim 1, characterized in that, in: Both the first sliding hole (9) and the second sliding hole (10) are arranged in the vertical direction, and the guide hole (11) is located between the first sliding hole (9) and the second sliding hole (10).
3. The hook unlocking structure of a smart lock according to claim 1, characterized in that, in: The guide hole (11) is set to be arc-shaped.
4. The hook unlocking structure of a smart lock according to claim 1, characterized in that, in: The inner wall of the outer casing (1) is also equipped with a clutch module (12), a transition gear (13) and a motor (14). The drive gear on the motor (14) is connected to the clutch module (12) through the transition gear (13). The clutch module (12) meshes with the swing gear (5).
5. The hook unlocking structure of a smart lock according to claim 4, characterized in that, in: The clutch module (12) includes a gear shaft (15). One end of the gear shaft (15) is coaxially fixed to a first gear (16), and the other end of the gear shaft (15) passes through a rotating second gear (17). The first gear (16) meshes with a transition gear (13), and the second gear (17) meshes with a swing gear (5). Both the first gear (16) and the second gear (17) have locking teeth (18) on opposite sides. The end of the gear shaft (15) away from the first gear (16) extends through to the outside of the outer casing (1).
6. The hook unlocking structure of a smart lock according to claim 1, characterized in that, in: A magnet (19) is fixedly disposed on the extension (8), and a PCB board is mounted on the outer shell (1). A Hall element corresponding to the position of the magnet (19) is mounted on the PCB board.