Dual anti-theft lock device
By introducing a fingerprint detector and drive mechanism into the lock, combined with the linkage design of the lifting plate and the barrier plate, the lock achieves dual anti-theft function, solves the problem of insufficient anti-theft performance of existing locks, and improves security and anti-theft effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGSHAN HAISHIMAN LOCK IND CO LTD
- Filing Date
- 2025-07-03
- Publication Date
- 2026-07-24
AI Technical Summary
Existing locks lack sufficient anti-theft performance, especially when mechanical and electronic locks are combined. The clear functional boundaries between mechanical and electronic components make them easy for attackers to identify, thus weakening the anti-theft performance.
Design a dual anti-theft lock device that combines a fingerprint detector and a drive mechanism. After fingerprint verification, the lifting plate and the barrier plate are moved to hide the lock cylinder socket, thus achieving dual anti-theft. The barrier plate can only be moved after fingerprint verification, exposing the lock cylinder.
The anti-theft performance of the lock has been improved. By linking the hidden lock cylinder socket and the barrier plate, security has been enhanced, preventing external peeping and foreign object intrusion, and improving the overall anti-theft effect.
Smart Images
Figure CN224549845U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of anti-theft lock technology, and in particular to a double anti-theft lock device. Background Technology
[0002] With the increasing awareness of social security, locks, as core devices for property protection, have become a key focus for users in terms of their anti-theft performance. Currently, the most common locks on the market are divided into two categories: mechanical locks and electronic locks. Traditional mechanical locks rely on the precision of their physical structure to achieve anti-theft, while electronic locks achieve anti-theft through technologies such as passwords, fingerprints, and radio frequency identification.
[0003] Whether relying on a complex lock cylinder structure or an electronic lock, both purely mechanical locks and electronic locks typically employ only a single core anti-theft mechanism, resulting in security bottlenecks. Although some locks combine both, the functional boundaries between the mechanical and electronic components are exceptionally clear and easily identifiable. Attackers can directly assess the mechanical lock cylinder and electronic control components within the lock body, thereby exposing the lock's defensive weaknesses and weakening its overall anti-theft performance. Therefore, this invention proposes a dual anti-theft lock device. Utility Model Content
[0004] The purpose of this invention is to address the problem of poor anti-theft performance of existing locks in the background art by proposing a dual anti-theft lock device.
[0005] The technical solution of this utility model is as follows: A double anti-theft lock device, including a lock shell and a handle, wherein a lock cylinder is installed inside the lock shell, and the handle is bolted to the lock shell, and further includes:
[0006] A fingerprint detector is installed on the outside of the handle and connected to a controller on the inside of the handle. The input terminal of the controller is connected to the fingerprint detector.
[0007] At least two symmetrically distributed lifting plates, a pair of sliding grooves are provided on the side of the lock case near the lifting plates, both lifting plates are slidably connected to the pair of sliding grooves, and baffles are fixedly connected to the side of the two lifting plates near each other.
[0008] The drive mechanism, connected to the output of the controller, is located inside the handle and is used to receive signals from the controller and control the movement of the lifting plate.
[0009] An installation slot is provided inside the lock housing. A baffle plate is slidably connected inside the installation slot. A traction mechanism is provided on the outside of the baffle plate. The traction mechanism is used to move and reset the baffle plate.
[0010] Optionally, the drive mechanism includes a fixed plate and a micro cylinder. The fixed plate is fixed to the outside of the lock housing, the micro cylinder is mounted on the top of the fixed plate, the output end of the micro cylinder is fixed to the lifting plate, and the micro cylinder is connected to the output end of the controller.
[0011] Optionally, the traction mechanism includes a traction rope and a pair of springs. The traction rope is fixed to the outside of the barrier plate and passes through the lock housing. The two ends of the pair of springs are fixed to the inner walls of the barrier plate and the mounting groove, respectively.
[0012] Optionally, a synchronization mechanism is provided on the inner side of the handle, which is used to drive a pair of lifting plates to move synchronously.
[0013] Optionally, the synchronization mechanism includes a pair of racks and a spur gear. The pair of racks are respectively fixed to one end of a pair of lifting plates that are close to each other. The spur gear rotates inside the handle, and the pair of racks mesh with the two sides of the lifting plates respectively.
[0014] Optionally, a ball is glued to the end of the traction rope away from the barrier plate, and the ball is made of rubber.
[0015] In summary, this application includes at least one of the following beneficial technical effects:
[0016] This utility model, through the structural design of the drive mechanism and the traction mechanism, achieves complete concealment of the handle's internal components and the lock cylinder socket in the initial state, isolating external peeping and unlocking channels. After the fingerprint verification is correct, the drive mechanism triggers the lifting plate to move, and the linkage traction mechanism moves the barrier plate, exposing the operation interface in stages, effectively improving the anti-theft performance. At the same time, the barrier plate can also prevent foreign objects from intruding into the lock cylinder. Attached Figure Description
[0017] Figure 1 A schematic diagram of the overall structure of a dual anti-theft lock device is provided.
[0018] Figure 2 This is a schematic diagram of the handle and fingerprint detector.
[0019] Figure 3 This is a partial structural diagram of a dual anti-theft lock device;
[0020] Figure 4 for Figure 3 A magnified structural diagram at point A;
[0021] Figure 5 This is a schematic diagram of the lock cylinder structure;
[0022] Figure 6 for Figure 5 Enlarged view of point B;
[0023] Figure 7 This is a schematic diagram of the explosion of the barrier plate.
[0024] Figure label:
[0025] 1. Lock case; 2. Lock cylinder; 3. Handle; 4. Fingerprint detector; 5. Lifting plate; 6. Slide rail; 7. Baffle; 8. Mounting slot; 9. Barrier plate; 10. Fixing plate; 11. Miniature cylinder; 12. Traction rope; 13. Spring; 14. Rack and pinion; 15. Spur gear; 16. Ball bearing. Detailed Implementation
[0026] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.
[0027] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.
[0028] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example
[0031] like Figure 1 and Figure 5As shown, the present invention proposes a dual anti-theft lock device, including a lock shell 1 and a handle 3. The handle 3 is designed to facilitate pulling the lock shell 1. The lock shell 1 is equipped with a lock cylinder 2, which is a prior art and is the core component for inserting a key to open the lock shell 1. The handle 3 is bolted to the lock shell 1, and the bolted connection facilitates the replacement of the handle 3.
[0032] As one implementation method, such as Figure 2 , Figure 3 and Figure 4 As described above, this embodiment also includes a fingerprint detector 4 installed on the outside of the handle 3. When it is necessary to unlock the lock shell 1 to open the door, the user first needs to press his finger on the fingerprint detector 4. The controller is connected to the inside of the handle 3. The input end of the controller is connected to the fingerprint detector 4. The fingerprint detector 4 transmits the signal to the controller, and the controller detects whether the fingerprint is correct.
[0033] Among them, such as Figure 2 , Figure 3 and Figure 4 As shown, there are at least two symmetrically distributed lifting plates 5. A pair of sliding grooves 6 are provided on the side of the lock case 1 near the lifting plate 5. Both lifting plates 5 are slidably connected to the pair of sliding grooves 6. A baffle 7 is fixedly connected to the side of the two lifting plates 5 near each other. In the initial state, the lifting plate 5 and the baffle 7, together with the handle 3, will seal the internal components. At this time, the internal structure cannot be seen from the outside, which provides a certain degree of security. The drive mechanism is connected to the output end of the controller and is set inside the handle 3. When the controller detects that the fingerprint is correct, the controller will drive the drive mechanism to run. When the drive mechanism is running, it will push the lifting plate 5 to move upward. The upward movement of the lifting plate 5 will simultaneously drive the baffle 7 to move upward, exposing the structure inside the handle 3.
[0034] In addition, such as Figure 4 , Figure 5 and Figure 6 As shown, this embodiment also includes a mounting groove 8 inside the lock housing 1. A baffle plate 9 is slidably connected inside the mounting groove 8. The mounting groove 8 provides space for the sliding of the baffle plate 9. In the initial state, the baffle plate 9 closes the bolt port of the lock cylinder 2, making the lock cylinder 2 invisible from the outside, thus providing security protection. A traction mechanism is provided on the outside of the baffle plate 9. The traction mechanism is used to move and reset the baffle plate 9. When the lifting plate 5 and the baffle 7 move, the traction mechanism can be pulled. The operation of the traction mechanism will drive the baffle plate 9 to move. Figure 7 As shown in the diagram, the user can unlock the lock cylinder 2 with the key. Through the above structural design, the lock cylinder 2 is sealed off, making it impossible for outsiders to observe. Even after the fingerprint is correct, the barrier plate 9 remains in a protective state for the lock cylinder 2. Only after the fingerprint is correct can the barrier plate 9 be moved by the traction mechanism to expose the lock cylinder 2, thus achieving a dual anti-theft function.
[0035] Furthermore, such as Figure 3 and Figure 4 As shown, the drive mechanism includes a fixed plate 10 and a miniature cylinder 11. The drive mechanism is described in detail below:
[0036] The fixing plate 10 is fixed to the outside of the lock housing 1. The micro cylinder 11 is installed on the top of the fixing plate 10. The fixing plate 10 supports the micro cylinder 11. The output end of the micro cylinder 11 is fixed to the lifting plate 5. The micro cylinder 11 is connected to the output end of the controller. When the fingerprint is correct, the controller drives the micro cylinder 11 to run. The running of the micro cylinder 11 will push the lifting plate 5 to move. The movement of the lifting plate 5 will then drive the baffle 7 to move, exposing the traction position of the traction mechanism.
[0037] Furthermore, such as Figure 5 and Figure 6 As shown, the traction mechanism includes a traction rope 12 and a pair of springs 13. The traction mechanism is described in detail below:
[0038] The traction rope 12 is fixed to the outside of the barrier plate 9 and passes through the lock shell 1. When the barrier plate 9 needs to be moved, the traction rope 12 can be pulled. The force on the traction rope 12 will cause the barrier plate 9 to move, exposing the pin hole of the lock cylinder 2. The two ends of the pair of springs 13 are fixed to the inner wall of the barrier plate 9 and the mounting groove 8, respectively. When the barrier plate 9 moves, the barrier plate 9 will squeeze the springs 13, causing the springs 13 to deform and generate elastic potential energy. When the key unlocks the lock cylinder 2, the traction rope 12 can be released, and the springs 13 will release their elastic potential energy, thereby pushing the barrier plate 9 to reset and closing the lock cylinder 2 again, thus playing a protective role.
[0039] As one implementation method, such as Figure 4 As shown, a synchronization mechanism is provided on the inner side of the handle 3. The synchronization mechanism is used to drive a pair of lifting plates 5 to move synchronously. When one set of lifting plates 5 moves, the lifting plates 5 will drive the other set of lifting plates 5 to move synchronously through the synchronization mechanism, thereby achieving rapid movement and opening a larger range of movement, which is convenient for users to perform subsequent operations.
[0040] Furthermore, such as Figure 4 As shown, the synchronization mechanism includes a pair of racks 14 and spur gears 15. The synchronization mechanism is described in detail below:
[0041] A pair of racks 14 are fixedly connected to one end of a pair of lifting plates 5. When a set of lifting plates 5 moves, the lifting plates 5 will drive the racks 14 fixed to them to move synchronously. The spur gear 15 rotates inside the handle 3, and the pair of racks 14 mesh with the two sides of the lifting plates 5 respectively. When the set of racks 14 moves, it will drive the spur gear 15 to rotate. The rotation of the spur gear 15 will drive the other set of racks 14 to move in the opposite direction, thereby realizing the function of the pair of lifting plates 5 moving in opposite directions.
[0042] Furthermore, such as Figure 6 As shown, a ball 16 is glued to the end of the traction rope 12 away from the barrier plate 9, and the ball 16 is made of rubber. The ball 16 makes it easy to pull the traction rope 12, and the rubber material can increase the friction.
[0043] In this embodiment, when the lock shell 1 needs to be unlocked to open the door, the user first needs to press their finger on the fingerprint detector 4. The fingerprint detector 4 transmits a signal to the controller. The controller detects whether the fingerprint is correct. When the controller detects that the fingerprint is correct, the controller drives the micro cylinder 11 to operate. The operation of the micro cylinder 11 will push the lifting plate 5 to move. When a set of lifting plates 5 moves, the lifting plate 5 will drive the rack 14 fixed to it to move synchronously. When the rack 14 moves, it will drive the spur gear 15 to rotate. The rotation of the spur gear 15 will drive another... The rack and pinion 14 moves in the opposite direction, the lifting plate 5 moves and in turn drives the baffle 7 to move, exposing the traction position of the traction rope 12. The user can then pull the traction rope 12, and the force on the traction rope 12 will drive the blocking plate 9 to move, exposing the pin hole of the lock cylinder 2. When the blocking plate 9 moves, it will compress the spring 13, causing the spring 13 to deform and generate elastic potential energy. When the key unlocks the lock cylinder 2, the traction rope 12 can be released, and the spring 13 will release its elastic potential energy, thereby pushing the blocking plate 9 to reset and closing the lock cylinder 2 again.
[0044] The above specific embodiments are merely optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.
Claims
1. A double anti-theft lock device, comprising a lock housing (1) and a handle (3), wherein a lock cylinder (2) is installed inside the lock housing (1), and the handle (3) is bolted to the lock housing (1), characterized in that, Also includes: A fingerprint detector (4) is installed on the outside of the handle (3) and connected to a controller on the inside of the handle (3). The input end of the controller is connected to the fingerprint detector (4). At least two symmetrically distributed lifting plates (5), a pair of sliding grooves (6) are provided on the side of the lock case (1) near the lifting plate (5), both lifting plates (5) are slidably connected to the pair of sliding grooves (6), and baffles (7) are fixedly connected to the side of the two lifting plates (5) near each other. The drive mechanism is connected to the output end of the controller and is located inside the handle (3). It is used to receive signals from the controller and control the movement of the lifting plate (5). An installation groove (8) is provided inside the lock housing (1). A baffle plate (9) is slidably connected inside the installation groove (8). A traction mechanism is provided on the outside of the baffle plate (9). The traction mechanism is used to move and reset the baffle plate (9).
2. The double anti-theft lock device according to claim 1, characterized in that, The drive mechanism includes a fixed plate (10) and a micro cylinder (11). The fixed plate (10) is fixed to the outside of the lock shell (1). The micro cylinder (11) is installed on the top of the fixed plate (10). The output end of the micro cylinder (11) is fixed to the lifting plate (5). The micro cylinder (11) is connected to the output end of the controller.
3. The double anti-theft lock device according to claim 1, characterized in that, The traction mechanism includes a traction rope (12) and a pair of springs (13). The traction rope (12) is fixed to the outside of the barrier plate (9) and passes through the lock housing (1). The two ends of the pair of springs (13) are fixed to the inner walls of the barrier plate (9) and the mounting groove (8), respectively.
4. The double anti-theft lock device according to claim 1, characterized in that, A synchronization mechanism is provided on the inner side of the handle (3), which is used to drive a pair of lifting plates (5) to move synchronously.
5. A double anti-theft lock device according to claim 4, characterized in that, The synchronization mechanism includes a pair of racks (14) and a spur gear (15). The pair of racks (14) are fixed to one end of a pair of lifting plates (5) respectively. The spur gear (15) rotates inside the handle (3), and the pair of racks (14) mesh with the two sides of the lifting plates (5) respectively.
6. A double anti-theft lock device according to claim 3, characterized in that, The end of the traction rope (12) away from the barrier plate (9) is glued with a ball (16), and the ball (16) is made of rubber.