A fingerprint lock device

Abstract

The utility model belongs to the technical field of fingerprint lock, especially, relate to a kind of fingerprint lock device, fingerprint lock device includes: base;Cover, cover is set on base, and the space of formation is contained between cover and base;Lock catch spare, lock catch spare one end is connected main body, and the other end is inserted on cover;Fingerprint unlocking mechanism, fingerprint unlocking mechanism at least includes fingerprint sensor, circuit board, battery, unlocking structure and limit structure, fingerprint sensor is set on cover, and circuit board, battery, unlocking structure and limit structure are all set in the space of containing, and the activity of through unlocking structure makes lock catch spare switch for locking state or unlocking state, and the range of activity of through limit structure limit unlocking structure is limited.In the activity process of unlocking structure, limit structure gives limit function, can avoid unlocking structure excessive displacement or with other components rigid collision, to protect unlocking structure, and guarantee the reliability of overall device.

Description

Technical Field

[0001] This utility model belongs to the field of fingerprint lock technology, and in particular relates to a fingerprint lock device. Background Technology

[0002] Fingerprint locks, as a type of intelligent security product based on biometric technology, achieve identity verification and mechanical unlocking by integrating a fingerprint acquisition module and a mechanical unlocking structure. Relying on the uniqueness and uncopyability of fingerprint biometrics, these products offer significant improvements in ease of use, security reliability, and operational intelligence compared to traditional mechanical locks, and are widely used in various application scenarios.

[0003] Mechanical unlocking mechanisms typically consist of a drive component and a latching component. After fingerprint verification, the drive component moves the latching component to complete the unlocking or locking operation. However, current fingerprint lock products on the market lack effective travel constraints. When the drive component overtravels due to control command deviations, voltage fluctuations, or mechanical failures, it can easily cause excessive displacement or hard impacts to the latching component, thus affecting its lifespan. In severe cases, it can even damage the internal structural integrity of the product, ultimately leading to product failure. Utility Model Content

[0004] This utility model provides a fingerprint lock device, which aims to solve the technical problem that existing fingerprint lock products lack effective travel constraints, which easily leads to excessive displacement or hard collision of the latching components, thereby affecting the service life of the latching components, and in severe cases, even damaging the integrity of the internal structure of the product, ultimately causing the product to fail.

[0005] This utility model is implemented as follows: a fingerprint lock device is provided, comprising: Base; A cover plate is disposed on the base, and a receiving space is formed between the cover plate and the base; A locking element, one end of which is connected to the main body and the other end of which is inserted into the cover plate; A fingerprint unlocking mechanism includes at least a fingerprint sensor, a circuit board, a battery, an unlocking structure, and a limiting structure. The fingerprint sensor is disposed on the cover plate, and the circuit board, the battery, the unlocking structure, and the limiting structure are all disposed within the receiving space. The movement of the unlocking structure switches the lock fastener to a locked or unlocked state, and the limiting structure limits the range of movement of the unlocking structure.

[0006] In some embodiments, the unlocking structure includes: Drive components; A transmission unit, wherein the transmission unit is connected to the driving component in a transmission manner; The lock seat is connected to the transmission unit. When the lock fastener is in the locked state, the lock fastener is locked on the lock seat. When the lock fastener is in the unlocked state, the lock fastener is disengaged from the lock seat.

[0007] In some embodiments, a blocking block is provided at the bottom of the lock seat, and the limiting structure includes a notch and a limiting block. Both the notch and the limiting block are disposed on the base, and both the blocking block and the limiting block are located within the notch.

[0008] In some embodiments, the transmission unit includes an eccentric shaft disposed on the drive member and a roller sleeved on the eccentric shaft, the outer wall of the roller being in close contact with the lock seat.

[0009] In some embodiments, a push plate is provided below the lock seat, and the outer wall of the roller is in close contact with the push plate.

[0010] In some embodiments, the locking element is provided with a locking hole, and the lock base is provided with a movable insertion hole at the middle position, and the inner wall of the movable insertion hole is provided with a locking element that cooperates with the locking hole.

[0011] In some embodiments, the fingerprint lock device further includes a reset mechanism connected to the lock base.

[0012] In some embodiments, the reset mechanism includes a pin and a reset spring. The pin is fixedly connected to one side of the lock seat, and the pin is oriented in the same direction as the lock seat. The reset spring is sleeved on the pin, and one end of the reset spring is fixedly connected to the inner wall of the base.

[0013] In some embodiments, the fingerprint lock device further includes an ejection mechanism disposed on the base.

[0014] In some embodiments, the ejection mechanism includes an ejection spring and a spring plate. The ejection spring is disposed on the base, and one end of the ejection spring is fixedly connected to the spring plate. When the locking member is in the unlocked state, the ejection spring drives the spring plate to eject the locking member.

[0015] The fingerprint lock device provided by this utility model, after fingerprint verification, activates the unlocking mechanism, causing the latch to switch to the unlocked state. During the activation of the unlocking mechanism, a limiting structure restricts its range of motion, allowing the latch to detach from the cover plate. After the latch is reinserted into the cover plate, the unlocking mechanism activates again, causing the latch to switch to the locked state. During the activation of the unlocking mechanism, the limiting structure again restricts its range of motion, allowing the latch to lock. The limiting structure provides a limiting effect during the activation process, preventing excessive displacement or hard collisions with other components, thus protecting the unlocking mechanism and ensuring the overall reliability of the device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the fingerprint lock device provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the fingerprint unlocking mechanism provided in this embodiment of the utility model; Figure 3 This is a schematic diagram of the lock base provided in an embodiment of the present utility model; Figure 4 This is a schematic diagram of the limiting structure provided in the embodiment of this utility model; Figure 5 This is an exploded view of the fingerprint lock device provided in the embodiment of this utility model. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model. Furthermore, it should be understood that the specific embodiments described herein are merely for explaining this utility model and are not intended to limit this utility model.

[0018] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "left", "right", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0019] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0020] 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, an electrical connection, or a connection that allows for communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0022] The following disclosure provides numerous different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0023] This utility model provides a fingerprint lock device, see reference. Figure 1 ,include: Base 100; A cover plate 200 is disposed on the base 100, and a receiving space is formed between the cover plate 200 and the base 100; Locking fastener 300, one end of which is connected to the main body and the other end is inserted into the cover plate 200; The fingerprint unlocking mechanism 400 includes at least a fingerprint sensor 410, a circuit board 420, a battery 430, an unlocking structure, and a limiting structure. The fingerprint sensor 410 is disposed on the cover plate 200. The circuit board 420, the battery 430, the unlocking structure, and the limiting structure are all disposed within the accommodating space. The movement of the unlocking structure switches the lock buckle 300 to a locked or unlocked state, and the limiting structure limits the range of movement of the unlocking structure.

[0024] The base 100 includes a base plate 110 and an upright plate 120 disposed on and surrounding the base plate 110. The upright plate 120 is disposed above the base plate 110, and a cover plate 200 is disposed above the upright plate 120, thereby covering the base 100 and forming an accommodating space between the two.

[0025] One end of the latch 300 is connected to the main body, which may be a device for storing items, such as a pencil case, pencil bag, safe, or storage box. The other end of the latch 300 is inserted into the cover plate 200. The fingerprint lock device is mounted on the main body. When the latch 300 is in the locked state, one end of the latch 300 is connected to the main body, and the other end is inserted into the cover plate 200, thus locking the fingerprint lock device and the main body, preventing the main body from being opened. When the latch 300 is in the unlocked state, one end of the latch 300 is connected to the main body, and the other end is detached from the cover plate 200, unlocking the fingerprint lock device and the main body, allowing the main body to be opened.

[0026] The fingerprint unlocking mechanism 400 includes at least a fingerprint sensor 410, a circuit board 420, and a battery 430. The fingerprint sensor 410 is used to identify the user's fingerprint, the circuit board 420 is used to determine whether the identified fingerprint matches a pre-stored fingerprint, and the battery 430 is used to provide power. It should be noted that fingerprint recognition technology is already very existing technology, and this invention is not intended to protect this technology, but rather to protect the overall hardware structure of the fingerprint lock device.

[0027] The user places their finger on the fingerprint sensor 410. The circuit board 420 determines whether the recognized fingerprint matches a pre-stored fingerprint. If they match, the unlocking mechanism causes the latch 300 to switch to the unlocked state. During the unlocking process, a limiting structure restricts the range of motion of the unlocking mechanism. After the latch 300 switches to the unlocked state, the user can open the main body. To lock the main body, the user reinserts the latch 300 onto the cover plate 200. The unlocking mechanism then switches the latch 300 to the locked state. During the unlocking process, the limiting structure restricts the range of motion of the unlocking mechanism. After the latch 300 switches to the locked state, the main body is locked. The limiting structure restricts the range of motion of the unlocking mechanism during the process of switching the latch 300 to the locked or unlocked state, preventing excessive displacement or hard collisions with other components. This protects the overall structure of the fingerprint lock device, extends its service life, and ensures its reliability.

[0028] In some specific embodiments of this application, reference is made to Figure 2 and Figure 5 The unlocking structure includes: Drive component 441; Transmission unit 442, which is connected to the drive component 441 in a transmission manner; Lock seat 443 is connected to the transmission unit 442. When the locking member 300 is in the locked state, the locking member 300 is locked on the lock seat 443. When the locking member 300 is in the unlocked state, the locking member 300 is disengaged from the lock seat 443.

[0029] In some implementations, the drive element 441 is a motor.

[0030] During the unlocking process, the driving component 441 drives the transmission unit 442, which in turn moves the lock seat 443, causing the latch 300 to disengage from the lock seat 443. At this time, the latch 300 is in the unlocked state and can be released from the cover plate 200. During the locking process, the latch 300 is reinserted onto the cover plate 200, and is in the locked state. The latch 300 is locked onto the lock seat 443 by means of the driving component 441 driving the transmission unit 442, which in turn moves the lock seat 443. Alternatively, the latch 300 can be locked onto the lock seat 443 through an automatic reset structure.

[0031] In some specific embodiments of this application, reference is made to Figure 3 and Figure 4The bottom of the lock base 443 is provided with a blocking block. The limiting structure includes a notch 452 and a limiting block. Both the notch 452 and the limiting block are provided on the base 100, and both the blocking block and the limiting block are located within the notch 452.

[0032] In some embodiments, the base 100 is provided with a protrusion 451, and a notch 452 is formed between the protrusions 451. The orientation of the notch 452 is consistent with the direction of movement of the lock seat 443.

[0033] A limiting block is fixedly mounted on the base 100 and located within the notch 452. A blocking block is provided at the bottom of the lock seat 443. During the movement of the lock seat 443, the blocking block moves within the notch 452, and the limiting block can limit the blocking block, thereby preventing excessive displacement of the lock seat 443 or hard collisions with other components. Specifically, the blocking block extends downwards from the bottom of the lock seat 443 in a convex shape, and the limiting block has a first inclined surface on the side facing the blocking block, thus preventing damage when the blocking block and the limiting block come into contact.

[0034] In some specific embodiments of this application, reference is made to Figure 2 and Figure 5 The transmission unit 442 includes an eccentric shaft mounted on the driving member 441 and a roller 4421 sleeved on the eccentric shaft, with the outer wall of the roller 4421 in close contact with the lock seat 443. After the driving member 441 is activated, it drives the eccentric shaft and the roller 4421 sleeved on the eccentric shaft to rotate. Since the outer wall of the roller 4421 is in close contact with the lock seat 443, the roller 4421 can drive the lock seat 443 to move.

[0035] In some embodiments, the transmission unit 442 further includes a transmission shaft and a rotating wheel. The transmission shaft is disposed on top of the drive member 441, the rotating wheel is disposed on top of the transmission shaft, and the eccentric shaft is disposed on top of the rotating wheel. After the drive member 441 is started, it drives the transmission shaft to rotate, which in turn drives the rotating wheel to rotate. The rotating wheel then drives the eccentric shaft and the roller 4421 sleeved on the eccentric shaft to rotate, so that the roller 4421 can drive the lock seat 443 to move.

[0036] In some specific embodiments of this application, reference is made to Figure 2 and Figure 3 A push plate 4431 is provided below the lock seat 443, and the outer wall of the roller 4421 is in close contact with the push plate 4431. When the roller 4421 rotates, since the outer wall of the roller 4421 is in close contact with the push plate 4431, the roller 4421 drives the push plate 4431 to move, and the push plate 4431 drives the lock seat 443 to move.

[0037] In some specific embodiments of this application, reference is made to Figure 2 , Figure 3 and Figure 5 The locking fastener 300 is provided with a locking hole 310, and the lock base 443 is provided with a movable insertion hole 4432 at the middle position. The inner wall of the movable insertion hole 4432 is provided with a locking member 4433 that cooperates with the locking hole 310.

[0038] When the locking element 300 is in the locked state, it is inserted into the cover plate 200, and the locking member 4433 of the movable insertion hole 4432 engages with the locking hole 310 of the locking element 300. When the locking element 300 is in the unlocked state, the driving member 441 drives the transmission unit 442 to move, and the transmission unit 442 drives the lock seat 443 to move, causing the locking member 4433 of the movable insertion hole 4432 to disengage from the locking element 300, allowing the locking element 300 to move and thus disengage from the cover plate 200.

[0039] In some embodiments, the card 4433 is provided with a second bevel.

[0040] In some specific embodiments of this application, reference is made to Figure 2 , Figure 3 and Figure 5 The fingerprint lock device further includes a reset mechanism 500, which is connected to the lock base 443. When the latch 300 switches to the locked state, the reset mechanism 500 drives the lock base 443 to reset, thereby locking the latch 300 back onto the lock base 443.

[0041] In some specific embodiments of this application, reference is made to Figure 2 , Figure 3 and Figure 5 The reset mechanism 500 includes a pin 510 and a reset spring 520. The pin 510 is fixedly connected to one side of the lock seat 443, and the setting direction of the pin 510 is consistent with the movement direction of the lock seat 443. The reset spring 520 is sleeved on the pin 510, and one end of the reset spring 520 is fixedly connected to the inner wall of the base 100. When the locking member 300 switches to the locked state, the reset spring 520 uses its own elastic force to push the pin 510, and the pin 510 drives the lock seat 443 to reset, thereby locking the locking member 300 back onto the lock seat 443.

[0042] In some specific embodiments of this application, reference is made to Figure 2 and Figure 5 The fingerprint lock device further includes an ejection mechanism 600, which is disposed on the base 100. When the latch 300 is switched to the unlocked state, the ejection mechanism 600 drives the latch 300 to be ejected, thereby disengaging the latch 300 from the cover plate 200.

[0043] In some specific embodiments of this application, reference is made to Figure 2 and Figure 5 The ejection mechanism 600 includes an ejection spring 610 and a spring plate 620. The ejection spring 610 is disposed on the base 100, and one end of the ejection spring 610 is fixedly connected to the spring plate 620. When the locking member 300 is in the unlocked state, the ejection spring 610 drives the spring plate 620 to eject the locking member 300. When the locking member 300 is switched to the unlocked state, the ejection spring 610 uses its own elastic force to push the spring plate 620, and the spring plate 620 drives the locking member 300 to be ejected, thereby disengaging the locking member 300 from the cover plate 200.

[0044] In some implementations, reference Figure 1 and Figure 5 The fingerprint lock device also includes a charging dock 700 mounted on the cover plate 200. The charging dock 700 is equipped with a charging port, such as a Type-C charging port or a USB charging port. The battery 430 is charged via an external power source.

[0045] Here, the overall working principle of the fingerprint lock device is explained in detail: When unlocking the latch 300 is required, the user places their finger on the fingerprint sensor 410. The circuit board 420 determines that the fingerprint verification is successful, and the drive unit 441 is activated. The drive unit 441 drives the eccentric shaft and the roller 4421 sleeved on the eccentric shaft to rotate. The roller 4421 drives the lock seat 443 to move, the blocking block moves within the notch 452, and the limiting block limits the blocking block. After the lock seat 443 moves, the locking piece 4433 of the movable socket 4432 disengages from the locking hole 310 of the latch 300, and the lock seat 443 compresses the return spring 520. After the locking effect of the locking piece 4433 is lost, the push-out spring 610 pushes the spring piece 620, which pushes the latch 300 out, thereby disengaging the latch 300 from the cover plate 200, allowing the user to open the main body.

[0046] When the locking element 300 needs to be locked, the user reinserts the locking element 300 into the cover plate 200. The locking element 300 is compressed by the spring 620 to push out the spring 610. The reset spring 520 drives the lock seat 443 to reset. The locking piece 4433 of the movable insertion hole 4432 re-engages into the locking hole 310 of the locking element 300, thereby locking the locking element 300 again and locking the main body.

[0047] In the description of this specification, references to terms such as "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with the described embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0048] Furthermore, the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fingerprint lock device, characterized in that, include: Base; A cover plate is disposed on the base, and a receiving space is formed between the cover plate and the base; A locking fastener, one end of which is connected to the main body and the other end is inserted into the cover plate; A fingerprint unlocking mechanism includes at least a fingerprint sensor, a circuit board, a battery, an unlocking structure, and a limiting structure. The fingerprint sensor is disposed on the cover plate, and the circuit board, the battery, the unlocking structure, and the limiting structure are all disposed within the receiving space. The movement of the unlocking structure switches the lock fastener to a locked or unlocked state, and the limiting structure limits the range of movement of the unlocking structure.

2. The fingerprint lock device according to claim 1, characterized in that, The unlocking structure includes: Drive components; A transmission unit, wherein the transmission unit is connected to the driving component in a transmission manner; The lock seat is connected to the transmission unit. When the lock fastener is in the locked state, the lock fastener is locked on the lock seat. When the lock fastener is in the unlocked state, the lock fastener is disengaged from the lock seat.

3. The fingerprint lock device according to claim 2, characterized in that, The bottom of the lock base is provided with a blocking block. The limiting structure includes a notch and a limiting block. Both the notch and the limiting block are provided on the base, and both the blocking block and the limiting block are located within the notch.

4. The fingerprint lock device according to claim 2, characterized in that, The transmission unit includes an eccentric shaft mounted on the drive member and a roller sleeved on the eccentric shaft, with the outer wall of the roller in close contact with the lock seat.

5. The fingerprint lock device according to claim 4, characterized in that, A push plate is provided below the lock seat, and the outer wall of the roller is in close contact with the push plate.

6. The fingerprint lock device according to claim 2, characterized in that, The locking element is provided with a locking hole, and the lock base is provided with a movable insertion hole in the middle position. The inner wall of the movable insertion hole is provided with a locking element that cooperates with the locking hole.

7. The fingerprint lock device according to claim 2, characterized in that, The fingerprint lock device also includes a reset mechanism, which is connected to the lock base.

8. The fingerprint lock device according to claim 7, characterized in that, The reset mechanism includes a pin and a reset spring. The pin is fixedly connected to one side of the lock seat, and the pin is set in the same direction as the movement direction of the lock seat. The reset spring is sleeved on the pin, and one end of the reset spring is fixedly connected to the inner wall of the base.

9. The fingerprint lock device according to claim 1, characterized in that, The fingerprint lock device also includes an ejection mechanism, which is disposed on the base.

10. The fingerprint lock device according to claim 9, characterized in that, The ejection mechanism includes an ejection spring and a spring plate. The ejection spring is disposed on the base, and one end of the ejection spring is fixedly connected to the spring plate. When the locking member is in the unlocked state, the ejection spring drives the spring plate to eject the locking member.

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