A fingerprint lock

Abstract

The utility model discloses a kind of fingerprint locks, including lock body, fixing part and unlocking part, the fixing part is set on the lock body, the unlocking part is set on the fixing part;The fixing part includes first fixed part and second fixed part, the first fixed part is connected with installation base body, the second fixed part is abutted with the installation base body, so that the lock body is fixed on the installation base body by the first fixed part and the second fixed part.The utility model passes through first fixed part and second fixed part on fixing part, using the double fixing mode of combination of clamping and abutment, without opening fixed hole on installation base body, not only simplify installation process, improve installation efficiency, but also can effectively prevent the movement of lock body along perpendicular and parallel to installation base body direction, realize the stable and reliable installation.

Description

Technical Field

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

[0002] Fingerprint locks, as a common type of smart lock, use the user's fingerprint information for identification and unlocking control. However, in practical applications, existing fingerprint locks have some inconveniences in terms of installation methods.

[0003] Traditional fingerprint lock installation typically requires drilling holes in door panels or drawer panels for fixing. This installation method not only damages the integrity of the furniture, but users are also often unwilling to drill holes in high-end or already finished furniture to install locks. Therefore, the drilling installation method also limits the lock's versatility, leaving marks on the furniture when the lock is replaced or removed. Utility Model Content

[0004] The purpose of this utility model is to provide a fingerprint lock that can be installed and fixed without drilling, thereby improving ease of use and installation efficiency.

[0005] To solve the above-mentioned technical problems, this utility model provides a fingerprint lock, including a lock body, a fixing component, and an unlocking component, wherein the fixing component is disposed on the lock body and the unlocking component is disposed on the fixing component;

[0006] The fastener includes a first fixing part and a second fixing part. The first fixing part is engaged with the mounting base, and the second fixing part abuts against the mounting base, so that the lock body is fixed to the mounting base by the first fixing part and the second fixing part.

[0007] Furthermore, the front end of the first fixing part is provided with a downwardly bent portion, and the second fixing part is provided on both sides of the first fixing part.

[0008] Furthermore, the unlocking component includes a fingerprint sensor PCB board and a fingerprint sensor housing. The fingerprint sensor PCB board is disposed on the downwardly bent portion of the first fixing part, and the fingerprint sensor housing is connected to the first fixing part.

[0009] Furthermore, it also includes a resilient latch assembly, which is disposed within the lock body;

[0010] The resilient latch assembly includes a latch, an elastic element, a latch, and a latch cover. The elastic element is disposed below the latch and abuts against the latch. The latch cover is disposed on the lock body, the latch is disposed on the latch cover, and the latch moves up and down within the latch and the latch cover.

[0011] Furthermore, it also includes a drive component, which is disposed within the lock body;

[0012] The drive assembly includes a geared motor and a cam fixed to the output shaft of the geared motor. A latch baffle is provided on one side of the latch. The cam arm of the cam is located above the latch baffle and abuts against the latch baffle.

[0013] Furthermore, it also includes a control component, which is disposed within the lock body.

[0014] The control component includes a lock motherboard PCB, which is electrically connected to the fingerprint sensor PCB via an FPC cable. The lock motherboard PCB is also electrically connected to the geared motor.

[0015] Furthermore, a detection switch is provided on the main PCB of the lock, and a lock tongue groove is provided on the other side of the lock tongue. The detection switch is arranged opposite to the lock tongue groove.

[0016] Furthermore, the lock body includes a rear shell and a rear cover plate; the rear cover plate is mounted on the rear shell by fasteners.

[0017] Furthermore, it also includes a power module, which includes a battery compartment, a battery cover, and a battery. The battery compartment is located at the bottom of the rear shell and is snapped into the main board PCB. The battery is located inside the battery compartment. The battery cover is fastened to the rear shell.

[0018] Compared with the prior art, the present invention has at least the following beneficial effects:

[0019] This invention employs a dual fixing method combining snap-fit ​​and abutment, utilizing a first and second fixing part on the fastener. This eliminates the need for fixing holes in the mounting base, simplifying the installation process, improving efficiency, and effectively preventing movement of the lock body along directions perpendicular and parallel to the mounting base, achieving a stable and reliable installation. Furthermore, this invention is suitable for mounting bases of varying thicknesses, has low manufacturing costs, is easy to install and disassemble, and is readily maintainable, making it highly practical.

[0020] Furthermore, this invention utilizes a geared motor to drive a cam, with the cam arm abutting against the latch stop rib to achieve the reciprocating motion of the latch. Simultaneously, the inclusion of an elastic element ensures the latch can smoothly return to its original position, improving the stability of the locking and unlocking actions. This invention also employs a detection switch to monitor the latch position in real time, making the locking and unlocking actions more accurate and reliable. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the fingerprint lock in one embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the fingerprint lock from another perspective in one embodiment of the present invention;

[0023] Figure 3 This is an exploded view of the fingerprint lock portion structure in one embodiment of the present invention;

[0024] Figure 4 This is an exploded view of a fingerprint lock according to one embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the connection between the cam and the locking tongue in one embodiment of the present invention;

[0026] Figure 6 This is a schematic diagram of one installation method for a fingerprint lock;

[0027] Figure 7 This is a schematic diagram showing another perspective on the installation of a fingerprint lock.

[0028] Reference numerals: 1. Battery cover; 2. First fixing part; 3. Lock tongue; 301. Lock tongue retainer; 302. Lock tongue groove; 4. Rear cover; 5. Battery compartment; 6. Battery; 7. Second fixing part; 8. Fastener; 9. Back cover; 10. Fingerprint sensor housing; 11. Fingerprint sensor PCB board; 12. Locking buckle; 13. Locking buckle cover; 14. FPC cable; 15. Gear motor; 16. Cam; 17. Elastic element; 18. Lock main board PCB; 1801. Detection switch. Detailed Implementation

[0029] Based on the teachings of this specification, those skilled in the art can form new technical solutions by combining different implementation methods without creating technical contradictions. Such variations should be considered to fall within the protection scope of this patent.

[0030] The fingerprint lock of this utility model will now be described in more detail with reference to the accompanying drawings, which illustrate preferred embodiments of the utility model. It should be understood that those skilled in the art can modify the utility model described herein while still achieving its advantageous effects. Therefore, the following description should be understood as being of general knowledge to those skilled in the art and is not intended to limit the utility model.

[0031] The present invention will be described in more detail below by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer from the following description. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0032] like Figures 1 to 6As shown in the figure, this utility model embodiment proposes a fingerprint lock, including a lock body, a fixing member, and an unlocking member. The fixing member is disposed on the lock body, and the unlocking member is disposed on the fixing member.

[0033] Specifically, the fixing component includes a first fixing part 2 and a second fixing part 7. The first fixing part 2 engages with the mounting base, and the second fixing part 7 abuts against the mounting base, thereby fixing the lock body to the mounting base via the first fixing part 2 and the second fixing part 7. The first fixing part 2 and the second fixing part 7 allow the user to securely fix the fingerprint lock to the mounting base without damaging the mounting base (such as a wooden board, drawer, etc.), thus protecting the integrity and aesthetics of the mounting base.

[0034] In one specific embodiment, the first fixing part 2 is an M5 countersunk screw.

[0035] In this embodiment, the front end of the first fixing part 2 is provided with a downwardly bent portion, and the second fixing part 7 is provided on both sides of the first fixing part 2. The fingerprint lock can be adapted to mounting bases of different thicknesses by adjusting the fixing depth of the second fixing part 7, thereby improving the versatility and flexibility of the fingerprint lock. For example, Figure 6 and Figure 7 As shown in the figure, a schematic diagram of installing a fingerprint lock on a drawer is presented.

[0036] In this embodiment, the unlocking component includes a fingerprint sensor PCB board 11 and a fingerprint sensor housing 10. The fingerprint sensor PCB board 11 is disposed on the downwardly bent portion of the first fixing part 2, and the fingerprint sensor housing 10 is connected to the first fixing part 2. The fingerprint sensor PCB board 11 is used to collect the user's fingerprint information and convert it into an electrical signal after identification and authentication, which is then sent to the control module. The fingerprint sensor PCB board 11 provides a highly secure authentication method; only users who have pre-registered their fingerprints can unlock the device, effectively preventing unauthorized access. The first fixing part 2 provides support and protection for the fingerprint sensor housing 10, improving the stability of the fingerprint recognition module during operation. The fingerprint sensor housing 10 is disposed on the first fixing part 2, mainly to protect the fingerprint sensor PCB board 11, preventing external environmental factors (such as dust, moisture, etc.) from affecting the fingerprint sensor PCB board 11, and improving the accuracy and reliability of fingerprint recognition.

[0037] In this embodiment, the fingerprint lock further includes a resilient latch assembly, which is disposed within the lock body. The resilient latch assembly includes a latch 3, an elastic element 17, a latch 12, and a latch cover 13.

[0038] Specifically, the elastic element 17 is located below the latch 3 and abuts against the latch 3, thereby determining the locking and unlocking states of the fingerprint lock by the extension and retraction of the latch 3. The elastic element 17 provides an upward elastic restoring force to the latch 3, enabling the latch 3 to smoothly return to the locked position. The elastic restoring mechanism of the elastic element 17 makes the movement of the latch 3 more stable and reliable, reduces mechanical jamming, and extends the service life of the fingerprint lock.

[0039] The latch cover 13 is disposed on the lock body, the latch 12 is disposed on the latch cover 13, and the bolt 3 moves up and down within the latch 12 and the latch cover 13. The arrangement of the latch 12 and the latch cover 13 ensures that the bolt 3 remains stable when moving up and down, reducing shaking and jamming.

[0040] It should be noted that the elastic element 17 can compress a spring or other elastic device. Different elastic elements have different characteristics and can be selected according to the specific needs of the fingerprint lock, thereby improving the overall performance and service life of the fingerprint lock.

[0041] In this embodiment, the fingerprint lock further includes a drive assembly disposed within the lock body. The drive assembly includes a reduction motor 15 and a cam 16 fixed to the output shaft of the reduction motor. A latch rib 301 is provided on one side of the latch 3. The cam arm of the cam 16 is located below the latch rib 301 and abuts against it. The cam arm, by abutting against the latch rib 301, reduces errors in mechanical transmission, improving the reliability and stability of the fingerprint lock. The reduction motor 15 provides a stable low-speed, high-torque output. With the cooperation of the latch rib 301 and the cam arm, the movement of the latch 3 becomes more precise, smooth, and reliable. The reduction motor 15 drives the cam 16 to rotate, and the cam 16 converts the rotational motion of the reduction motor 15 into the linear motion of the latch 3, improving the reliability of the transmission.

[0042] In this embodiment, the fingerprint lock further includes a control component disposed within the lock body. The control module is used to receive fingerprint recognition signals, thereby controlling the unlocking and locking actions.

[0043] Specifically, the control component includes a lock motherboard PCB18, which is electrically connected to the fingerprint sensor PCB11 via an FPC cable, and is also electrically connected to the geared motor 15.

[0044] The fingerprint sensor PCB board 11, as the core component of the fingerprint recognition module, is responsible for collecting fingerprint information and converting it into electrical signals. The FPC cable 14 has good flexibility and reliability, ensuring a stable connection between the fingerprint sensor PCB board 11 and the lock main board PCB 18, and reducing interference in signal transmission.

[0045] After receiving a fingerprint verification pass signal, the lock mainboard PCB18 drives the reduction motor 15 to rotate, which in turn drives the cam 16 to move. Under the drive of the cam arm, the bolt 3 moves downward, causing the elastic element 17 to retract and unlock. After a preset time, the reduction motor 15 is controlled to rotate in the opposite direction, so that the bolt 3 automatically resets to the locked state under the force of the elastic element 17.

[0046] Furthermore, the lock motherboard PCB18 is equipped with a buzzer, which is used to emit a prompt sound when fingerprint verification is successful to notify the user that the lock has been successfully unlocked; at the same time, it emits a continuous prompt sound when fingerprint verification fails to warn the user that the fingerprint recognition has failed, thereby improving the security of the fingerprint lock.

[0047] Furthermore, a detection switch 1801 is also provided on the main PCB 18 of the lock, and a latch groove 302 is provided on the other side of the latch 3. The detection switch 1801 is positioned opposite to the latch groove 302 and is used to detect the position of the latch 3. The detection switch 1801 monitors the position of the latch 3 in real time and transmits the detection signal to the control module. The control module controls the rotation time of the reduction motor 15 according to the detection signal, thereby improving the reliability and stability of the fingerprint lock.

[0048] In one specific embodiment, the preset time is set to 3-5 seconds based on the detection status of the detection switch 1801. The preset time of 3-5 seconds provides a stable unlocking or locking state for the extension and retraction of the bolt 3, allowing the user sufficient time to complete the unlocking operation, thereby avoiding misoperation or increased energy consumption due to too short or too long a time.

[0049] In this embodiment, the lock body includes a rear shell 9 and a rear cover plate 4, the rear cover plate 4 being mounted on the rear shell 9 by fasteners 8. The rear shell 9 is the basic structure of the fingerprint lock, supporting and protecting the internal components. The rear cover plate 4 is mounted on the rear shell 9 by fasteners 8 to protect the internal components.

[0050] In one specific embodiment, the fastener 8 is an M2 countersunk screw.

[0051] In this embodiment, the fingerprint lock further includes a power module, which comprises a battery compartment 5, a battery cover 1, and a battery 6. The battery compartment 5 is located at the bottom of the rear shell 9 and is snapped into place with the lock's main board PCB 18. The battery compartment 5 effectively prevents battery leakage from corroding or damaging the internal electronic components of the lock, thus extending the lifespan of the combination lock. The battery 6 is housed within the battery compartment 5. The battery cover 1 is fastened to the rear shell 9, allowing the user to easily open the battery cover 1 to replace the battery without requiring complicated tools or operations, making it convenient and quick.

[0052] Under normal conditions, the locking tongue 3 remains extended under the elastic force of the spring. At this time, the locking tongue 3 is in the locked position.

[0053] When the mounting base is pushed to the closed position, the latch 3 contacts the assembly of the latch 12 and the latch cover 13. Due to the inclined force of the latch 12 and the latch cover 13, the latch 3 compresses the elastic element 17 and moves downward. When the latch 3 reaches the locked position, the inclined force disappears, and the latch 3 rebounds under the action of the elastic element 17, thereby realizing the automatic locking function.

[0054] In the unlocked state, the user presses their finger on the fingerprint sensor PCB board 11. The fingerprint sensor PCB board 11 detects the fingerprint information and matches it with stored fingerprint data. If the verification is successful, the fingerprint sensor PCB board 11 sends an electrical signal to the lock main board PCB 18 via the FPC cable 14, and the buzzer on the lock main board PCB 18 emits a "beep" sound. After receiving the electrical signal, the lock main board PCB 18 drives the geared motor 15 to rotate, which in turn drives the cam 16 mounted on the geared motor 15 to rotate. The cam arm of the cam 16 pushes the latch stop rib 301 on the latch 3, causing the latch 3 to compress the elastic element 17 and move downward, thereby realizing the unlocking function.

[0055] During this process, the latch groove 302 on the latch 3 passes through the detection switch 1801, which issues a control command to keep the reduction motor 15 in an unlocked state for a few seconds. After a few seconds, the reduction motor 15 rotates in the opposite direction, causing the cam 16 to release the force on the latch stop 301. The latch 3 then returns to its extended state under the elastic force of the elastic member 17.

[0056] If fingerprint verification fails, the buzzer will emit three consecutive "beep, beep, beep" sounds, and the lock motherboard PCB18 will not drive the geared motor 15 to operate, thereby preventing the lock from being illegally opened.

[0057] In summary, this utility model, through the first and second fixing parts on the fixing member, adopts a dual fixing method combining snap-fit ​​and abutment, eliminating the need to drill fixing holes in the mounting base. This not only simplifies the installation process and improves installation efficiency but also effectively prevents the lock body from moving in directions perpendicular to and parallel to the mounting base, achieving a stable and reliable installation effect. At the same time, the structure is simple in design, low in manufacturing cost, easy to install and disassemble, and easy to maintain, making it highly practical.

[0058] Furthermore, this invention utilizes a geared motor to drive a cam, with the cam arm abutting against the latch stop rib to achieve the reciprocating motion of the latch. Simultaneously, the inclusion of an elastic element ensures the latch can smoothly return to its original position, improving the stability of the locking and unlocking actions. This invention also employs a detection switch to monitor the latch position in real time, making the locking and unlocking actions more accurate and reliable.

[0059] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A fingerprint lock, characterized in that, It includes a lock body, a fixing component, and an unlocking component, wherein the fixing component is disposed on the lock body and the unlocking component is disposed on the fixing component; The fastener includes a first fixing part and a second fixing part. The first fixing part is engaged with the mounting base, and the second fixing part abuts against the mounting base, so that the lock body is fixed to the mounting base by the first fixing part and the second fixing part.

2. The fingerprint lock as described in claim 1, characterized in that, The front end of the first fixing part is provided with a downwardly bent portion, and the second fixing part is provided on both sides of the first fixing part.

3. The fingerprint lock as described in claim 2, characterized in that, The unlocking component includes a fingerprint sensor PCB board and a fingerprint sensor housing. The fingerprint sensor PCB board is disposed on the downwardly bent portion of the first fixing part, and the fingerprint sensor housing is connected to the first fixing part.

4. The fingerprint lock as described in claim 1, characterized in that, It also includes a resilient latch assembly, which is disposed within the lock body; The resilient latch assembly includes a latch, an elastic element, a latch, and a latch cover. The elastic element is disposed below the latch and abuts against the latch. The latch cover is disposed on the lock body, the latch is disposed on the latch cover, and the latch moves up and down within the latch and the latch cover.

5. The fingerprint lock as described in claim 4, characterized in that, It also includes a drive component, which is disposed within the lock body; The drive assembly includes a geared motor and a cam fixed to the output shaft of the geared motor. A latch baffle is provided on one side of the latch. The cam arm of the cam is located above the latch baffle and abuts against the latch baffle.

6. The fingerprint lock as described in claim 5, characterized in that, It also includes a control component, which is disposed within the lock body; The control component includes a lock motherboard PCB, which is electrically connected to the fingerprint sensor PCB via an FPC cable. The lock motherboard PCB is also electrically connected to the geared motor.

7. The fingerprint lock as described in claim 6, characterized in that, The main PCB of the lock is equipped with a detection switch, and the other side of the lock tongue is also provided with a lock tongue groove. The detection switch is arranged opposite to the lock tongue groove.

8. The fingerprint lock as described in claim 1, characterized in that, The lock body includes a rear shell and a rear cover plate; the rear cover plate is mounted on the rear shell by fasteners.

9. The fingerprint lock as described in claim 8, characterized in that, It also includes a power module, which includes a battery compartment, a battery cover, and a battery. The battery compartment is located at the bottom of the rear shell and is snapped into the main board PCB. The battery is located inside the battery compartment. The battery cover is fastened to the rear shell.

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