Dynamic coded lock capable of being unlocked by fingerprint

By designing a dynamic combination lock that can be unlocked by fingerprint, and by using installation and cleaning components, the problems of inconvenient installation and easy fingerprint residue in fingerprint combination locks are solved, enabling quick installation and disassembly and enhanced security.

CN224134412UActive Publication Date: 2026-04-17JIANGSU HUACE IOT TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU HUACE IOT TECH CO LTD
Filing Date
2025-04-01
Publication Date
2026-04-17

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Abstract

The utility model discloses a dynamic coded lock capable of being unlocked by fingerprints, which belongs to the technical field of fingerprint coded locks, and comprises a door body, a mounting groove is formed in the door body, a fingerprint coded lock is arranged in the mounting groove, a placing groove is formed in the door body, a mounting component is arranged in the placing groove, and the fingerprint coded lock is arranged in the mounting component. The mounting assembly comprises a rotating disc, two sets of connecting rods are hinged to the two sides of the rotating disc, mounting can be completed in a short time, manpower and time cost are saved, when the coded lock breaks down or needs to be maintained regularly, quick dismounting is conducted, the coded lock can be quickly taken down by a maintainer to be overhauled, the mounting process is simplified, and the mounting efficiency is improved. No complex tools and professional skills are needed, fingerprint trace residues are reduced, the risk that others speculate or acquire user fingerprint information through residual fingerprints is reduced, the problem that a house is stolen due to the fact that fingerprints are rubbed is avoided, and the safety of the coded lock is enhanced.
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Description

Technical Field

[0001] This utility model relates to the field of fingerprint lock technology, and in particular to a dynamic lock that can be unlocked by fingerprint. Background Technology

[0002] Fingerprint locks are smart locks, a perfect fusion of computer information technology, electronic technology, mechanical technology, and modern hardware craftsmanship. Fingerprints are the uneven patterns on the skin at the tip of the finger. Although fingerprints are only a small part of human skin, they contain a wealth of information. These patterns, breaks, and intersections are unique, referred to as "features" in information processing. Medical science has proven that these features are different for each finger, and that they are unique and permanent. Therefore, we can associate a person with their fingerprints. By comparing their fingerprint features with pre-saved fingerprint features, we can verify their identity. Thus, these characteristics of fingerprints have become the most important evidence for identification and are widely used in the security field. However, most fingerprint locks on the market are currently installed using bolts, making installation, replacement, or disassembly in case of fire cumbersome and hindering quick installation and disassembly. Furthermore, after a user enters their password, fingerprints are easily left on the lock, making it easy for others to steal the password and creating a security risk. Therefore, we propose a dynamic fingerprint-unlockable lock to solve this problem. Utility Model Content

[0003] The purpose of this invention is to provide a dynamic password lock that can be unlocked by fingerprint, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A fingerprint-unlockable dynamic combination lock includes: a door body, an installation groove inside the door body, a fingerprint combination lock inside the installation groove, a placement groove inside the door body, and an installation assembly inside the placement groove. The installation assembly includes: a turntable, two sets of connecting rods hinged to both sides of the turntable, connecting blocks fixedly installed on the side of the two sets of connecting rods on the same side, fixing blocks fixedly installed on the top of the two sets of connecting blocks, insert plates fixedly installed on the side of the two sets of fixing blocks, and insert plates movably inserted into the sides of the fingerprint combination lock. An operation display screen and a fingerprint reader are provided on the front of the fingerprint combination lock. Frames are fixedly installed on both sides of the fingerprint combination lock, and cleaning components are provided inside the two sets of frames. The cleaning components include: two sets of sliders, which are slidably installed inside corresponding frames, and cleaning sponges fixedly installed on the side of the two sets of sliders that are close to each other.

[0006] Preferably, a limiting rod is slidably installed inside both sets of fixing blocks, and the two sets of limiting rods are respectively fixedly connected to the inner walls of both sides of the placement groove. A spring is sleeved on the outer side of each set of limiting rods, and the two ends of the springs are respectively fixedly connected to the inner wall of one side of the corresponding fixing block and the placement groove.

[0007] Preferably, guide rods are slidably installed inside both sets of sliders, and the two ends of the two sets of guide rods are fixedly connected to the inner walls of the two sides of the frame, respectively. Springs are sleeved on the outer sides of the two sets of guide rods, and the two ends of the two sets of springs are fixedly connected to the inner walls of the corresponding sliders and the frame, respectively.

[0008] Preferably, a rotating shaft is rotatably installed on the inner walls of both sides of the placement groove, the rotating shaft extends through to the rear side of the door, the turntable is fixedly sleeved on the outside of the rotating shaft, and a knob is fixedly installed at one end of the rotating shaft.

[0009] Preferably, the mounting slot is adapted to the fingerprint lock, and the cleaning sponge is in contact with the front of the fingerprint lock.

[0010] Preferably, handles are fixedly installed on both sides of the fingerprint lock.

[0011] In this utility model, a fingerprint-unlockable dynamic combination lock is provided with an installation component, a placement slot, and an installation slot. By rotating a knob, the knob drives a rotating shaft to rotate, which in turn drives an outer turntable to rotate. As the turntable rotates, it causes the fixing blocks on both sides to move horizontally left and right, causing the two sets of connecting blocks to move correspondingly, and causing the two sets of fixing blocks to move away from each other while pressing a spring. Under the reset action of the spring, the two sets of fixing blocks move the two sets of insert plates closer together, effectively installing and fixing the fingerprint combination lock. Installation can be completed in a short time, saving manpower and time costs. When the combination lock malfunctions or requires regular maintenance, quick disassembly allows maintenance personnel to quickly remove it for inspection and repair, and simplifies the installation process without the need for complicated tools and professional skills.

[0012] In this invention, a fingerprint-unlockable dynamic combination lock is provided with a cleaning component and a frame. By manually pulling down the cleaning sponge, the sponge causes the sliders on both sides to slide on the guide rod while squeezing the second spring. This allows the cleaning sponge to effectively clean the fingerprints used to enter the password on the operation display screen, reducing fingerprint residue and lowering the risk of others guessing or obtaining the user's fingerprint information through residual fingerprints. This avoids the problem of house theft due to fingerprint imprints and enhances the security of the combination lock. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of a fingerprint-unlockable dynamic password lock proposed in this utility model.

[0014] Figure 2 This is a three-dimensional structural diagram of a fingerprint-unlockable dynamic password lock proposed in this utility model from another perspective.

[0015] Figure 3 This is a cross-sectional view of a fingerprint-unlockable dynamic combination lock proposed in this utility model.

[0016] Figure 4 for Figure 3 A magnified view of part A in the middle;

[0017] Figure 5 This is a schematic diagram of the cleaning component structure proposed in this utility model.

[0018] In the diagram: 1. Door body; 2. Fingerprint lock; 3. Mounting components; 301. Knob; 302. Shaft; 303. Turntable; 304. Linkage rod; 305. Connecting block; 306. Fixing block; 307. Insert plate; 308. Spring 1; 309. Limiting rod; 4. Frame; 5. Operation display screen; 6. Handle; 7. Fingerprint reader; 8. Cleaning components; 801. Spring 2; 802. Guide rod; 803. Slider; 804. Cleaning sponge. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Reference Figure 1-5A fingerprint-unlockable dynamic combination lock includes: a door body 1, an installation groove inside the door body 1, a fingerprint combination lock 2 inside the installation groove, and a placement groove inside the placement groove for an installation assembly 3. The installation assembly 3 includes: a turntable 303, two sets of connecting rods 304 hinged to both sides of the turntable 303, connecting blocks 305 fixedly installed on the side of the two sets of connecting rods 304 on the same side that are close to each other, and fixing blocks 306 fixedly installed on the top of the two sets of connecting blocks 305. 6. Insert plates 307 are fixedly installed on the sides of the fingerprint lock 2. The two sets of insert plates 307 are movably inserted into the inside of the two sides of the fingerprint lock 2. The front of the fingerprint lock 2 is provided with an operation display screen 5 and a fingerprint reader 7. The two sides of the fingerprint lock 2 are fixedly installed with frames 4. The two sets of frames 4 are provided with cleaning components 8. The cleaning components 8 include: two sets of sliders 803. The two sets of sliders 803 are slidably installed inside the corresponding frames 4. A cleaning sponge 804 is fixedly installed on the side of the two sets of sliders 803 that are close to each other.

[0021] In this embodiment, limit rods 309 are slidably installed inside both sets of fixing blocks 306. The two sets of limit rods 309 are fixedly connected to the inner walls on both sides of the placement slot. Springs 308 are sleeved on the outer side of both sets of limit rods 309. The two ends of the two sets of springs 308 are fixedly connected to the corresponding fixing block 306 and the inner wall on one side of the placement slot, respectively. This facilitates the reset of the fixing block 306 driving the insert plate 307, and facilitates the installation and fixation of the fingerprint lock 2. Guide rods 802 are slidably installed inside both sets of sliders 803. The two ends of the two sets of guide rods 802 are fixedly connected to the inner walls on both sides of the frame 4, respectively. Springs 801 are sleeved on the outer side of both sets of guide rods 802. The two ends of the two sets of springs 801 are fixedly connected to the corresponding slider 803 and the inner wall on one side of the frame 4, respectively. This facilitates the reset of the cleaning sponge 804, and ensures that the cleaning sponge 804 can return to its original position without obstructing the operation display screen 5 after removing fingerprints.

[0022] In this embodiment, a rotating shaft 302 is rotatably installed on the inner walls of both sides of the placement slot. The rotating shaft 302 extends through to the rear side of the door body 1. A turntable 303 is fixedly sleeved on the outer side of the rotating shaft 302. A knob 301 is fixedly installed at one end of the rotating shaft 302 to facilitate the rotation of the turntable 303. The mounting slot is adapted to the fingerprint lock 2. The cleaning sponge 804 moves against the front side of the fingerprint lock 2 to facilitate the stable installation of the fingerprint lock 2 and to facilitate the cleaning sponge 804 to better clean fingerprints. Handles 6 are fixedly installed on both sides of the fingerprint lock 2 to facilitate the opening of the door body 1.

[0023] In this embodiment, during use, a person inside the room rotates the knob 301, causing the knob 301 to rotate the rotating shaft 302, which in turn rotates the outer turntable 303. Through the connecting rods 304 hinged to both sides of the turntable 303 and the connecting block 305 hinged to the connecting rod 304 on the same side, the rotation of the turntable 303 simultaneously causes the fixing blocks 306 on both sides to move horizontally to the left and right. This causes the two sets of connecting blocks 305 to move the top fixing block 306 accordingly, causing the two sets of fixing blocks 306 to move the insert plate 307 away from each other while simultaneously compressing the spring 308. At this point, the fingerprint lock 2 is placed inside the mounting slot. Releasing the knob 301, under the reset action of the spring 308, causes the two... The fixing block 306 drives the two sets of insert plates 307 to move closer together to effectively install and fix the fingerprint lock 2. The same applies when disassembling. Then, the user places the registered finger on the fingerprint reader 7 and turns the handle 6 to open the door. Alternatively, the user can open the door by operating the display screen 5. After entering the password, the user can manually pull down the cleaning sponge 804. This causes the cleaning sponge 804 to slide on the guide rod 802 on both sides, while squeezing the second spring 801. This allows the cleaning sponge 804 to effectively clean the fingerprint of the password input on the operation display screen 5. Finally, the second spring 801 resets the cleaning sponge 804 to its original position so as not to obstruct the operation display screen 5.

[0024] The present invention provides a detailed description of a fingerprint-unlockable dynamic combination lock. Specific embodiments have been used to illustrate the principles and implementation methods of the present invention. These embodiments are merely illustrative and are intended to aid in understanding the method and core concepts of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A dynamic combination lock that can be unlocked by a fingerprint, characterized in that, include: A door body (1) has an installation groove inside, and a fingerprint lock (2) is installed inside the installation groove. A placement groove is also provided inside the door body (1), and an installation assembly (3) is installed inside the placement groove. The installation assembly (3) includes a turntable (303), with two sets of connecting rods (304) hinged to both sides of the turntable (303). Connecting blocks (305) are fixedly installed on the side of the two sets of connecting rods (304) that are close to each other. Fixing blocks (306) are fixedly installed on the top of the two sets of connecting blocks (305). Fixing blocks (306) are fixedly installed on the side of the two sets of fixing blocks (306) that are close to each other. A plug plate (307) is fixedly installed. Two sets of plug plates (307) are movably inserted into the inside of both sides of the fingerprint lock (2). An operation display screen (5) and a fingerprint reader (7) are provided on the front side of the fingerprint lock (2). A frame (4) is fixedly installed on both sides of the fingerprint lock (2). A cleaning component (8) is provided inside the two sets of frames (4). The cleaning component (8) includes: two sets of sliders (803). The two sets of sliders (803) are slidably installed inside the corresponding frames (4). A cleaning sponge (804) is fixedly installed on the side of the two sets of sliders (803) that are close to each other.

2. The dynamic combination lock of claim 1, wherein, Both sets of fixing blocks (306) have slidably installed limit rods (309) inside. The two sets of limit rods (309) are fixedly connected to the inner walls of the two sides of the placement groove respectively. The outer sides of the two sets of limit rods (309) are fitted with springs (308). The two ends of the springs (308) are fixedly connected to the corresponding fixing block (306) and the inner wall of one side of the placement groove respectively.

3. The dynamic combination lock of claim 1, wherein, Guide rods (802) are slidably installed inside both sets of sliders (803). The two ends of the two sets of guide rods (802) are fixedly connected to the inner walls of the two sides of the frame (4). Springs (801) are sleeved on the outer side of both sets of guide rods (802). The two ends of the two sets of springs (801) are fixedly connected to the inner wall of one side of the corresponding slider (803) and frame (4).

4. A fingerprint-unlockable dynamic combination lock according to claim 1, characterized in that, A rotating shaft (302) is rotatably installed on the inner walls of both sides of the placement slot. The rotating shaft (302) extends through to the rear side of the door (1). The turntable (303) is fixedly sleeved on the outside of the rotating shaft (302). A knob (301) is fixedly installed at one end of the rotating shaft (302).

5. The dynamic combination lock of claim 1, wherein, The mounting slot is adapted to the fingerprint lock (2), and the cleaning sponge (804) is in contact with the front side of the fingerprint lock (2).

6. The dynamic combination lock of claim 1, wherein, The fingerprint lock (2) has handles (6) fixedly installed on both sides.