Smart cabinet door lock structure
Patent Information
- Application Number
- TW114106971
- Authority / Receiving Office
- TW · TW
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2026-09-01
- Estimated Expiration
- 2045-02-24
AI Technical Summary
Traditional cabinet door locks face issues such as lost or damaged keys, forgotten passwords, and difficulty in turning mechanical knobs, while existing smart locks lack simplicity and ease of use.
A smart cabinet door lock structure with a control group, braking component, and actuating element that allows for remote unlocking and keyless operation, utilizing a control board, motor-driven actuator, and braking mechanism to retract the latch without a physical key.
Enhances convenience and security by eliminating the need for physical keys and enabling remote control, providing a simple and efficient unlocking mechanism.
Smart Images

Figure TWG2TA001073974_001 
Figure TWG2TA001073974_002 
Figure TWG2TA001073974_003
Abstract
Description
Technical Field
[0001] This case concerns a type of lock, particularly a smart cabinet door lock structure. Prior Technology
[0002] Traditional cabinet door locks are widely used in various cabinets in daily life, such as filing cabinets, storage cabinets, and wardrobes. These locks typically rely on keys, passwords, or mechanical knobs to open or lock.
[0003] However, these traditional cabinet door locks have some inconveniences, such as the possibility of keys being lost or damaged, passwords being forgotten or cracked by outsiders, and the difficulty of turning mechanical knobs. Furthermore, with the rapid development of wireless communication technology and smart devices, more and more smart locks based on network and other wireless controls have emerged. These locks use applications or other digital credentials for unlocking, providing users with the advantage of remote unlocking or locking without physical keys, and the ability to monitor the lock's usage in real time, thus achieving greater convenience and security.
[0004] Therefore, the applicant's research motivation lies in providing a smart cabinet door lock that is simple in structure and easy to use. In view of this, to achieve the above objectives, the applicant has devoted himself to research and applied theoretical principles, and has finally proposed a design that effectively improves upon the aforementioned shortcomings. Summary of the Invention
[0005] One objective of this application is to provide a smart cabinet door lock structure that, through the setting of a control group and a braking component, achieves the blocking of the lock tongue, eliminating the need for a physical key to unlock and increasing the convenience of use.
[0006] To achieve the aforementioned objectives, this invention relates to a smart cabinet door lock structure. The control assembly includes a mounting plate, a control board mounted on the mounting plate, and an actuating element electrically connected to the control board. The lock base assembly includes a base attached to the mounting plate, the base having an opening, a through slot communicating with the opening, and a platform for mounting the actuating element. The latch assembly includes a latch and a spring attached to the latch, the latch being positioned in the through slot and able to extend out of the opening. The braking element includes a head and a swinging portion connected to the head, the head having an actuating element attached to it and rotating under the actuating element's influence. As the head rotates, the swinging portion disengages from blocking the latch, causing the latch to retract into the opening due to the spring's push.
[0007] In one embodiment of this case, the smart cabinet door lock structure further includes a lock cylinder assembly attached to the mounting plate. The lock cylinder assembly includes a lock head, a lock pin connected to the lock head, and a tongue plate attached to the lock pin. The tongue plate can push against the swinging part as the lock pin rotates, thereby causing the swinging part to disengage from the lock tongue.
[0008] In one embodiment of this case, the lock cylinder assembly further includes a screw ring and a nut for engaging the lock pin, with a tongue plate sandwiched between the screw ring and the nut.
[0009] In one embodiment of this case, the control group further includes a control box that covers the control board.
[0010] In one embodiment of this invention, the actuating element is a motor with a drive shaft, the head includes a counterweight and a protrusion located on the bottom side of the counterweight, and the drive shaft is coupled in the protrusion.
[0011] In one embodiment of this case, the counterweight includes an arc-shaped plate and counterweight plates stacked on the arc-shaped plate.
[0012] In one embodiment of this invention, the lock assembly further includes a bearing plate coupled to the platform and a bearing seat embedded in the bearing plate, with the actuating element disposed on the bearing seat.
[0013] In one embodiment of this invention, the lock base assembly further includes a cover and a plurality of locking fasteners, the cover being secured to the mounting plate and covering the base body via the locking fasteners.
[0014] In one embodiment of this invention, the latch includes a latch bar and a protrusion connecting the latch bar, the latch bar passing through a slot, and the protrusion located on one side of the opening.
[0015] In one embodiment of this case, a baffle is formed on the bottom side of the bolt, and a flange is formed on one side of the opening of the seat. The baffle is located inside the flange, so that the bolt does not disengage from the seat.
[0016] Compared to conventional designs, the smart cabinet door lock structure in this case can be unlocked through the control unit. Furthermore, upon receiving a signal, the control board activates the actuator, causing the brake to rotate. The brake rotates its head, causing the swinging part to deflect, disengaging it from the bolt's obstruction, thus retracting the bolt's protrusion into the opening and unlocking the door. Moreover, the smart cabinet door lock structure achieves bolt obstruction through the control unit and brake, eliminating the need for a physical key and increasing convenience. Alternatively, the smart cabinet door lock structure in this case could also include a lock cylinder assembly, where a physical key activates the brake, disengaging it from the bolt's obstruction and unlocking the door, thereby increasing practicality. Simple Explanation of the Diagram
[0017] Figure 1 is a three-dimensional appearance diagram of the smart cabinet door lock structure in this case.
[0018] Figure 2 is a three-dimensional exploded view of the smart cabinet door lock structure in this case.
[0019] Figure 3 is a schematic diagram of the combination of braking components and actuating elements in this case.
[0020] Figure 4 is a combined sectional view of the smart cabinet door lock structure in this case.
[0021] Figure 5 is a plan view of the smart cabinet door lock structure in this case.
[0022] Figure 6 is a schematic diagram of the unlocking mechanism of the smart cabinet door lock in this case.
[0023] Figure 7 is a cross-sectional view of the unlocking mechanism of the smart cabinet door lock in this case. Implementation
[0024] The detailed description and technical content of this case are illustrated below with accompanying drawings. However, the accompanying drawings are provided for reference and illustration only and are not intended to limit this case.
[0025] Please refer to Figure 1, which is a three-dimensional external schematic diagram of the smart cabinet door lock structure of this invention. The smart cabinet door lock structure 1 of this invention includes a control group 10, a lock base group 20, a bolt group 30, and a brake member 40. The bolt group 30 and the brake member 40 are attached to the lock base group 20. The control group 10 can be operated via an application or remote control program, thereby actuating the brake member 40. Accordingly, the brake member 40 operates under the control of the control group 10 to achieve the purpose of controlling the bolt group 30. A more detailed description of the structure of the smart cabinet door lock structure 1 follows.
[0026] In this embodiment, the smart cabinet door lock structure 1 further includes a lock cylinder assembly 50. The lock cylinder assembly 50 can accommodate a physical key (not shown) to drive the braking element 40, thereby controlling the bolt assembly 30.
[0027] Please refer to Figures 2 to 5, which are respectively an exploded perspective view of the smart cabinet door lock structure, a combined schematic diagram of the braking component and actuating element, a combined sectional view of the smart cabinet door lock structure, and a planar schematic diagram. The control group 10 of this invention includes a mounting plate 11, a control plate 12 disposed on the mounting plate 11, an actuating element 13 electrically connected to the control plate 12, and a control box 14, wherein the control box 14 covers the control plate 12.
[0028] The lock seat assembly 20 includes a body 21 attached to the mounting plate 11. The body 21 has an opening 210, a through slot 211 communicating with the opening 210, and a platform 212 housing the actuating element 13. Furthermore, the lock seat assembly 20 further includes a support plate 22 attached to the platform 212, a bearing 23 embedded in the support plate 22, a cover 24, and a plurality of locking fasteners 25. The actuating element 13 is mounted on the bearing 23. The cover 24 is locked to the mounting plate 11 through the locking fasteners 25 and covers the body 21.
[0029] The latch assembly 30 includes a latch 31 and a spring 32 coupled to the latch 31. The latch 31 is disposed in the through groove 211 and can extend out of the opening 210. In this embodiment, the latch 31 includes a tongue bar 311 and a protrusion 312 connected to the tongue bar 311. The tongue bar 311 passes through the through groove 211. The protrusion 312 is located on one side of the opening 210 of the seat body 21. More specifically, a baffle 313 is formed on the bottom side of the protrusion 312 of the latch 31. Furthermore, a flange 213 is formed on one side of the opening 210 of the seat body 21. The baffle 313 is located on the inner side of the flange 213, thereby preventing the latch 31 from disengaging from the seat body 21.
[0030] The brake element 40 includes a head 41 and a swing portion 42 connected to the head 41. The head 41 is coupled with the actuating element 13 and rotates under the drive of the actuating element 13. As the head 41 rotates, the swing portion 42 disengages from the latch 31, thereby causing the latch 31 to retract into the opening 210 by the push of the spring 32.
[0031] Specifically, the actuating element 13 is a motor and has a drive shaft 131. The head 41 includes a counterweight 43 and a protrusion 44 located on the bottom side of the counterweight 43. The drive shaft 131 is coupled to the protrusion 44. In this embodiment, the counterweight 43 includes an arc-shaped piece 431 and a counterweight piece 432 superimposed on the arc-shaped piece 431. Accordingly, the braking member 40 rotates about the protrusion 44 and is driven by the actuating element 13. Furthermore, when the braking member 40 is not driven by the actuating element 13, it will swing back to its original position about the protrusion 44 by its own weight.
[0032] Furthermore, the lock cylinder assembly 50 includes a lock head 51, a lock pin 52 connected to the lock head 51, and a tongue plate 53 attached to the lock pin 52. The tongue plate 53, as the lock pin 52 rotates, can push against the swing portion 42 of the brake member 40, thereby disengaging the swing portion 42 from the locking tongue 31. In this embodiment, the lock cylinder assembly 50 further includes a threaded ring 54 and a nut 55 screwed onto the lock pin 52. Moreover, the tongue plate 53 is sandwiched between the threaded ring 54 and the nut 55, thus rotating with the lock pin 52.
[0033] It should be noted that when actually using the smart cabinet door lock structure 1, the lock cylinder group 50 may not be set up, that is, the use of a key for unlocking is not provided.
[0034] Please refer to Figures 6 and 7, which are schematic diagrams and cross-sectional views of the unlocking mechanism of the smart cabinet door lock structure in this case, respectively. The smart cabinet door lock structure 1 of this case can be unlocked through the control group 10. After receiving a signal, the control board 12 will cause the actuator 13 to actuate, thereby driving the brake member 40 to rotate. The brake member 40 rotates with its head 41, causing the swing part 42 to deflect, so that the swing part 42 disengages from the block of the bolt 31. Accordingly, the protrusion 312 of the bolt 31 can retract into the opening 210 and unlock.
[0035] The above description is merely a preferred embodiment of this case and is not intended to limit the scope of the patent. Other equivalent variations that utilize the spirit of the patent in this case should also fall within the scope of the patent in this case.
[0036] 1: Smart Cabinet Door Lock Structure 10: Control Group 11: Mounting plate 12: Control Panel 13: Actuating element 131: Drive shaft 14: Control Box 20: Lock seat assembly 21: base body 210: Opening 211: Through slot 212: Platform 213: Flange 22: Support plate 23: Support 24: Cover 25: Locking hardware 30: Locking tongue assembly 31: Locking tongue 311: Tongue rod 312: Bump 313: Baffle 32: Spring 40: Braking components 41: Head 42: Swinging part 43: Counterweight 431: Curved piece 432: Counterweight 44: Convex column 50: Locking Heart Set 51: Lock 52: Locking Pillar 53: Tongue plate 54: Spiral Ring 55: Nut
Claims
1. A smart cabinet door lock structure, comprising: a control assembly including a mounting plate, a control board disposed on the mounting plate, and an actuating element electrically connected to the control board; a lock base assembly including a body attached to the mounting plate, the body having an opening, a through groove communicating with the opening, and a platform mounting the actuating element; a latch assembly including a latch and a spring attached to the latch, the latch being disposed in the through groove and capable of extending out of the opening; and a braking member including a head and a swinging part connected to the head, the head being coupled to the actuating element and rotating under the drive of the actuating element, the swinging part disengaging from the latch as the head rotates, thereby causing the latch to retract into the opening by the push of the spring; wherein, The actuating element is a motor and has a drive shaft. The head includes a counterweight and a protrusion located on the bottom side of the counterweight. The drive shaft is coupled to the protrusion.
2. The smart cabinet door lock structure as described in claim 1 further includes a lock cylinder assembly attached to the mounting plate, the lock cylinder assembly including a lock head, a lock pin connected to the lock head and a tongue plate attached to the lock pin, the tongue plate being able to push against the swinging part as the lock pin rotates, thereby causing the swinging part to disengage from the lock tongue.
3. The smart cabinet door lock structure as described in claim 2, wherein the lock cylinder assembly further includes a screw ring and a nut that engage the lock pin, and the tongue plate is sandwiched between the screw ring and the nut.
4. The smart cabinet door lock structure as described in claim 1, wherein the control group further includes a control box that covers the control board.
5. The smart cabinet door lock structure as described in claim 1, wherein the counterweight includes an arc-shaped piece and a counterweight piece superimposed on the arc-shaped piece.
6. The smart cabinet door lock structure as described in claim 1, wherein the lock base assembly further includes a support plate coupled to the platform and a seat embedded in the support plate, and the actuating element is disposed on the seat.
7. The smart cabinet door lock structure as described in claim 1, wherein the lock base assembly further includes a cover and a plurality of locking fasteners, the cover being secured to the mounting plate and covering the base body through the locking fasteners.
8. The smart cabinet door lock structure as described in claim 1, wherein the lock tongue includes a tongue rod and a protrusion connected to the tongue rod, the tongue rod passing through the through groove, and the protrusion being located on one side of the opening.
9. The smart cabinet door lock structure as described in claim 8, wherein the latch has a baffle formed on the bottom side of the protrusion, the seat has a flange formed on one side of the opening, and the baffle is located on the inner side of the flange, thereby preventing the latch from disengaging from the seat.