Door lock with fingerprint shielding structure

Abstract

The utility model provides a door lock with a fingerprint shielding structure, which comprises a lock main body shell and a fingerprint shielding component, the fingerprint shielding component used for preventing password leakage is arranged on the outer side of the lock main body shell, and a limiting component used for positioning the fingerprint shielding component is arranged on the right side of the fingerprint shielding component. Compared with the prior art, the anti-theft lock has the advantages that the fingerprint shielding component is arranged, the surface of the lock is cleaned through the sticky roller, traces such as fingerprints and touch grease can be removed, the risk that other people obtain passwords by observing or reflecting light is reduced, and the safety of the door lock is improved; the position of the protective cover can be positioned, and the problem that the protective cover keeps moving downwards under the action of gravity, so that a user needs to input a password while lifting the protective cover, and consequently operation is not convenient enough is solved.

Description

Technical Field

[0001] This utility model belongs to the field of security technology, and specifically relates to a door lock with a fingerprint shielding structure. Background Technology

[0002] Smart locks are an important component of modern home security, designed to enhance both safety and convenience. These security devices combine biometric and intelligent technologies and are widely used in homes, offices, and commercial spaces. They unlock via fingerprint recognition; users simply place their pre-registered fingerprints on the recognition area, eliminating the need for traditional keys or remembering passwords and greatly improving convenience. However, smart locks that lack fingerprint shielding on the lock surface have significant drawbacks, primarily in terms of security and user privacy. When users enter their passwords, they may leave fingerprints, grease, or other dirt on the lock surface, providing clues for potential attackers to guess the password. This is especially problematic in multi-user environments, where fingerprints from different people may mix, increasing the risk of password cracking. Therefore, we aim to design a lock with a fingerprint shielding structure to address this issue. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a door lock with a fingerprint shielding structure to solve the problems mentioned in the background technology.

[0004] This utility model is achieved through the following technical solution: a door lock with a fingerprint shielding structure, comprising: a lock body shell and a fingerprint shielding component, wherein a handle is provided at the lower front end of the lock body shell, and an operation interface for fingerprint unlocking is provided at the upper front end of the lock body shell, and a fingerprint shielding component for preventing password leakage is provided on the outer side of the lock body shell, and a limiting component for positioning the fingerprint shielding component is provided on the right side of the fingerprint shielding component. By setting the fingerprint shielding component, the surface of the lock can be cleaned to remove fingerprints, touch stains and other traces, reducing the risk of others obtaining the password.

[0005] In a preferred embodiment, the fingerprint shielding component includes a protective cover that is slidably fitted into the left and right sides of the lock body shell. An adhesive roller is provided at the lower inner end of the protective cover. A connecting plate is fixedly connected to the right side of the adhesive roller. A support plate is movably sleeved inside the connecting plate. By setting the connecting plate to be movably sleeved on the outside of the support plate, the adhesive roller can roll to clean the surface of the lock.

[0006] In a preferred embodiment, the disassembly assembly includes a second connecting plate, which is fixedly connected to the left side of the adhesive roller. An abutment plate is movably sleeved inside the second connecting plate. The left side of the abutment plate is fixedly connected to the telescopic end of a telescopic rod, and the left side of the telescopic rod is fixedly connected to a second support plate. By setting the telescopic rod and the abutment plate, the telescopic rod retracts, causing the abutment plate to move, which further facilitates the disassembly and replacement of the adhesive roller.

[0007] In a preferred embodiment, a spring is provided on the outer side of the telescopic rod, and the abutment plate and the support plate are elastically connected by the spring. By providing the spring, the elastic force of the spring is used to keep the abutment plate in a movable fit with the support plate.

[0008] In a preferred embodiment, one end of a rotating shaft is fixedly connected to the right side of the first support plate and the left side of the second support plate, and the other end of the rotating shaft is fixedly connected to the inner wall of the protective cover.

[0009] In a preferred embodiment, the limiting component includes a connecting plate, which is fixedly connected to the lower rear end of the protective cover. A support frame is fixedly connected to the outer side of the connecting plate, and an insert rod slides through the inside of the support frame. An elastic component is provided on the outer side of the insert rod. By setting the limiting component, the position of the protective cover is limited to prevent the protective cover from obstructing the operating interface.

[0010] In a preferred embodiment, the elastic component includes a collar, which is fixedly sleeved on the outside of the insertion rod. The left side of the collar contacts the connecting plate, and the collar is elastically connected to the inside of the support frame by a second spring. By providing the elastic component, the insertion rod is held inside the door lock body shell under the elastic force of the second spring.

[0011] In a preferred embodiment, the insertion rod slides through the interior of the connecting plate and is slidably sleeved inside the lock body housing. The protective cover is limited by the insertion rod being inserted into the interior of the lock body housing.

[0012] In a preferred embodiment, the upper and lower ends of the lock body shell are provided with grooves for engaging with the insertion rod.

[0013] After adopting the above technical solution, the beneficial effects of this utility model are as follows: by setting a fingerprint shielding component and using an adhesive roller to clean the surface of the lock, fingerprints, touch grease and other traces can be removed, reducing the risk of others obtaining the password by observation or reflection of light, and improving the security of the door lock. In addition, by setting a limiting component, the position of the protective cover can be positioned to prevent the protective cover from shifting downward under the action of gravity, thus preventing the user from having to lift the protective cover while entering the password, which leads to the problem of inconvenient operation. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a right-side oblique view of the overall structure of a door lock with a fingerprint shielding structure according to this utility model.

[0016] Figure 2 This is a partial three-dimensional view of a door lock with a fingerprint shielding structure according to the present invention.

[0017] Figure 3 This is a rear oblique view of the protective cover of a door lock with a fingerprint shielding structure according to this utility model.

[0018] Figure 4 This is a partial exploded view of the fingerprint shielding component of a door lock with a fingerprint shielding structure according to this utility model.

[0019] Figure 5 This utility model relates to a door lock with a fingerprint shielding structure. Figure 3 Enlarged view of part A of the structure.

[0020] In the diagram, 1-lock body shell, 2-handle, 3-operation interface, 4-fingerprint shielding component, 5-limiting component;

[0021] 41-Protective cover, 42-Adhesive roller, 43-Connecting plate one, 44-Support plate one, 45-Disassembly assembly, 451-Connecting plate two, 452-Abutting plate, 453-Telescopic rod, 454-Support plate two, 455-Spring one;

[0022] 51-Connecting plate, 52-Support frame, 53-Insertion rod, 54-Elastic component, 541-Collar, 542-Spring II. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1 to 5This utility model provides a technical solution: a door lock with a fingerprint shielding structure, including: a lock body shell 1 and a fingerprint shielding component 4. A handle 2 is provided at the lower front end of the lock body shell 1, and an operation interface 3 for fingerprint unlocking is provided at the upper front end of the lock body shell 1. A fingerprint shielding component 4 for preventing password leakage is provided on the outer side of the lock body shell 1, and a limiting component 5 for positioning the fingerprint shielding component 4 is provided on the right side of the fingerprint shielding component 4. By setting the fingerprint shielding component 4, the surface of the lock can be cleaned to remove fingerprints, touch stains and other traces, reducing the risk of others obtaining the password.

[0025] The fingerprint shielding component 4 includes a protective cover 41, which is slidably fitted into the left and right sides of the lock body shell 1. An adhesive roller 42 is provided on the lower inner side of the protective cover 41. A connecting plate 43 is fixedly connected to the right side of the adhesive roller 42. A support plate 44 is movably sleeved inside the connecting plate 43. By setting the connecting plate 43 to be movably sleeved on the outside of the support plate, the adhesive roller 42 can roll to clean the surface of the lock.

[0026] The disassembly assembly 45 includes a second connecting plate 451, which is fixedly connected to the left side of the adhesive roller 42. An abutment plate 452 is movably sleeved inside the second connecting plate 451. The telescopic end of a telescopic rod 453 is fixedly connected to the left side of the abutment plate 452. A second support plate 454 is fixedly connected to the left side of the telescopic rod 453. By setting the telescopic rod 453 and the abutment plate 452, when the telescopic rod 453 retracts, it drives the abutment plate 452 to move, which further facilitates the disassembly and replacement of the adhesive roller 42.

[0027] A spring 455 is provided on the outer side of the telescopic rod 453. The abutment plate 452 and the support plate 454 are elastically connected by the spring 455. By providing the spring 455, the elastic force of the spring 455 is used to keep the abutment plate 452 in a movable engagement with the connection plate 451.

[0028] One end of a rotating shaft is fixedly connected to the right side of support plate 1 44 and the left side of support plate 2 454, and the other end of the rotating shaft is fixedly connected to the inner wall of the protective cover 41.

[0029] The limiting component 5 includes a connecting plate 51, which is fixedly connected to the lower rear end of the protective cover 41. A support frame 52 is fixedly connected to the outside of the connecting plate 51. A rod 53 slides through the inside of the support frame 52. An elastic component is provided on the outside of the rod 53. By setting the limiting component 5, the position of the protective cover 41 is limited to prevent the protective cover 41 from obstructing the operation interface 3.

[0030] The elastic component 54 includes a collar 541, which is fixedly sleeved on the outside of the insertion rod 53. The left side of the collar 541 contacts the connecting plate 51. The collar 541 is elastically connected to the inside of the support frame 52 by a second spring 542. By setting the elastic component 54, the insertion rod 53 is kept inside the door lock body shell 1 under the elastic force of the second spring 542.

[0031] The insertion rod 53 slides through the inside of the connecting plate 51 and slides into the inside of the lock body shell 1. The insertion rod 53 is inserted into the inside of the lock body shell 1 to limit the protective cover 41.

[0032] The upper and lower ends of the lock body shell 1 are provided with grooves for engaging with the insertion rod 53.

[0033] Please see Figures 1 to 4 As the first embodiment of this utility model: During the use of the door lock, the protective cover 41 is first pushed upwards. During the displacement of the protective cover 41, the support plate 44 and the abutment plate 452 are moved. Simultaneously, the support plate 44 and the abutment plate 452 move the connecting plate 43, the connecting plate 451, and the adhesive roller 42, performing an initial cleaning of the lock surface to prevent fingerprints, grease, or other traces from being left on the lock surface, thus preventing others from obtaining the password by observation or reflection of light. After the password is entered, the lock is reset. The protective cover 41, while resetting, uses the adhesive roller 42 to clean the surface of the lock again, improving the safety of the lock. At the same time, when the adhesive roller 42 needs to be replaced, push the abutment plate 452 to the left. As the abutment plate 452 moves, it squeezes the spring 455 and the telescopic rod 453. When the abutment plate 452 moves to the point of disengaging from the interior of the connecting plate 451, the adhesive roller 42 can be moved to the left until the connecting plate 43 on its right side disengages from the support plate 44. Then the adhesive roller 42 can be removed to complete its replacement.

[0034] Please see Figure 1 , Figure 2 , Figure 3 , Figure 5As a second embodiment of this utility model: Based on the description in the above embodiments, further, when pushing the protective cover 41, the insertion rod 53 is first pulled. During the displacement process, the insertion rod 53 drives the collar 541 to move. During the displacement process, the collar 541 compresses the second spring 542 to deform it. When the insertion rod 53 moves to the groove at the lower end of the lock body shell 1, the protective cover 41 can be pushed upward. At the same time, the protective cover 41 drives the connecting plate 51, the support frame 52 and the insertion rod 53 to move. When the insertion rod 53 moves to the upper end of the lock body shell 1, under the elastic force of the second spring 542, the insertion rod 53 is inserted into the groove at the upper end of the lock body shell 1 to complete the limiting of the protective cover 41, avoiding the problem that the user needs to lift the protective cover 41 while entering the password, which makes the operation inconvenient.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., 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 door lock with a fingerprint shielding structure, comprising: The lock body shell (1) and the fingerprint shielding component (4) are characterized in that a handle (2) is provided at the lower front end of the lock body shell (1), an operation interface (3) for fingerprint unlocking is provided at the upper front end of the lock body shell (1), a fingerprint shielding component (4) for preventing password leakage is provided on the outer side of the lock body shell (1), and a limiting component (5) for positioning the fingerprint shielding component (4) is provided on the right side of the fingerprint shielding component (4). The fingerprint shielding component (4) includes a protective cover (41), which is slidably fitted with the left and right sides of the lock body shell (1). An adhesive roller (42) is provided on the lower inner side of the protective cover (41). A connecting plate (43) is fixedly connected to the right side of the adhesive roller (42). A support plate (44) is movably sleeved inside the connecting plate (43). A disassembly component (45) is provided on the left side of the adhesive roller (42).

2. A door lock with a fingerprint shielding structure as described in claim 1, characterized in that: The disassembly assembly (45) includes a second connecting plate (451), which is fixedly connected to the left side of the adhesive roller (42); The connecting plate 2 (451) is movably sleeved with an abutment plate (452). The left side of the abutment plate (452) is fixedly connected to the telescopic end of the telescopic rod (453). The left side of the telescopic rod (453) is fixedly connected to a support plate 2 (454).

3. A door lock with a fingerprint shielding structure as described in claim 2, characterized in that: A spring (455) is provided on the outside of the telescopic rod (453), and the abutment plate (452) and the support plate (454) are elastically connected by the spring (455).

4. A door lock with a fingerprint shielding structure as described in claim 1, characterized in that: One end of a rotating shaft is fixedly connected to the right side of the first support plate (44) and the left side of the second support plate (454), and the other end of the rotating shaft is fixedly connected to the inner wall of the protective cover (41).

5. A door lock with a fingerprint shielding structure as described in claim 1, characterized in that: The limiting component (5) includes a connecting plate (51), which is fixedly connected to the lower rear end of the protective cover (41). A support frame (52) is fixedly connected to the outside of the connecting plate (51). A rod (53) slides through the inside of the support frame (52), and an elastic component (54) is provided on the outside of the rod (53).

6. A door lock with a fingerprint shielding structure as described in claim 5, characterized in that: The elastic component (54) includes a collar (541), which is fixedly sleeved on the outside of the insert rod (53). The left side of the collar (541) is in contact with the connecting plate (51), and the collar (541) is elastically connected to the inside of the support frame (52) by a spring (542).

7. A door lock with a fingerprint shielding structure as described in claim 6, characterized in that: The insertion rod (53) slides through the interior of the connecting plate (51) and is slidably sleeved inside the lock body shell (1).

8. A door lock with a fingerprint shielding structure as described in claim 7, characterized in that: The upper and lower ends of the lock body shell (1) are provided with grooves for engaging with the insertion rod (53).

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