A smart door lock with hidden handle

Abstract

This utility model discloses a smart door lock with a concealed handle, designed for mounting on a door. It includes a lock panel and an emergency unlocking interface. The lock panel has a horizontal gripping hole extending through its width. A fingerprint unlocking module is positioned on the side of the gripping hole closest to the door. A tactile feedback module, containing a pressure sensor and a vibration motor, is located on the side of the gripping hole facing the door. This module detects the user's finger insertion and provides operation confirmation feedback, enhancing the user experience. The emergency unlocking interface is concealed on the lock panel surface and can be mechanically unlocked with a key, ensuring normal user access. This utility model employs a concealed handle design with no protruding structure, effectively preventing handle deformation or breakage caused by external impacts, extending the lock's lifespan, reducing the risk of people scratching or bumping in confined spaces, and simultaneously improving the lock's aesthetics and security.

Description

Technical Field

[0001] This utility model relates to the field of smart door lock technology, and in particular to a smart door lock with a hidden handle. Background Technology

[0002] With the increasing popularity of smart homes, smart door locks have become a core entry point for home security due to their convenience and security. However, most mainstream smart door locks on the market currently use a protruding L-shaped mechanical handle design, which has the following drawbacks:

[0003] 1. Structural defects: The protruding handle is easily deformed or broken by external impacts (such as when moving items or when children run and bump into it), shortening the life of the lock body; 2. Insufficient aesthetics: It disrupts the integrated streamlined design of the lock panel and clashes with modern minimalist home decoration style; 3. Security hazards: The protruding handle may be pried open by external tools, increasing the risk of forced entry; 4. Space occupation: It is easy to cause people to scratch or bump into it in narrow corridors or entrance areas. Utility Model Content

[0004] The purpose of this utility model is to disclose an intelligent door lock that can solve the defect of a protruding handle.

[0005] To achieve the above objectives, this utility model discloses a smart door lock with a hidden handle, for assembly onto a door, comprising: a lock panel, wherein the lock panel has a horizontally arranged gripping hole extending through the width of the lock panel; a fingerprint unlocking module is provided on the side of the gripping hole closest to the door; a tactile feedback module is provided on the side of the gripping hole facing the door, the tactile feedback module including a pressure sensor (i.e., a vibration motor) for detecting user finger insertion and providing operation confirmation feedback; and an emergency unlocking interface, hidden on the surface of the lock panel, for mechanical unlocking via a key.

[0006] By adopting the above solution and using a hidden handle design without an outward protruding structure, the deformation or breakage caused by external force impacting the handle is avoided, which can extend the life of the lock body and reduce the possibility of people being scratched in narrow spaces.

[0007] Furthermore, the cross-sectional area of ​​the gripping hole is circular or ellipsoidal, and the maximum diameter of the gripping hole ranges from 15cm to 25cm.

[0008] By adopting the above design, most adult hand sizes can be accommodated. Whether the user has a large or small hand, they can comfortably insert their fingers into the gripper hole for operation, improving convenience and comfort. The circular or ellipsoidal shape better conforms to the natural gripping motion of the human hand.

[0009] Furthermore, the lock panel includes: a base portion, which is mounted on the door body; a front end portion, which is mounted on the base portion, and the gripping hole is located between the base portion and the front end portion.

[0010] By adopting the above solution, the base is tightly connected to the door body, providing stable support for the lock panel; the front end is firmly fixed to the base, enhancing the overall structural stability, resisting external impacts and vibrations, reducing loosening and damage, and lowering the risk of being violently damaged.

[0011] Furthermore, the base portion includes: a base plate; a bottom shell, the bottom shell being fastened to the base plate, the fingerprint unlocking module being embedded in the surface of the bottom shell; and a circuit board, the circuit board being fixed between the bottom shell and the base plate.

[0012] By adopting the above solution, this rapid assembly method can significantly shorten the production cycle and increase production capacity. The fingerprint unlocking module is embedded in the surface of the bottom shell, which provides a certain degree of protection against external impacts, scratches, and dust contamination. The snap-fit ​​connection between the bottom shell and the base plate, as well as the fixing method of the circuit board, gives the base a high degree of structural stability. It can effectively resist external impacts and vibrations, preventing the smart lock from loosening or being damaged during use, thus improving the security and reliability of the smart lock.

[0013] Furthermore, the front end portion includes: a front end frame, which is fixed to the base portion, and the haptic feedback module is embedded in the front end frame; a mezzanine plate, which is assembled on the front side of the front end frame; and a transparent cover, which covers the front side of the mezzanine plate.

[0014] By adopting the above solution, when a user inserts their finger into the gripping hole, the haptic feedback module can detect the pressure of the finger in a timely and accurate manner, and provide operation confirmation feedback through the vibration motor. This enhances the user's interactive experience with the smart lock and improves the accuracy and convenience of operation. A transparent cover covers the front of the interlayer plate, with a smooth surface that is easy to clean. Users can easily wipe the transparent cover with a damp cloth or detergent to keep the front of the smart lock clean and aesthetically pleasing.

[0015] Furthermore, a digital panel is integrated on the mezzanine, and the digital panel is equipped with spring-loaded touch buttons.

[0016] By adopting the above solution, the digital keypad is integrated into the mezzanine panel and features a spring-loaded touch button design, resulting in a relatively centralized and clear button layout. When entering a password, the user's finger can quickly and accurately locate the required button, reducing the possibility of accidental presses. Furthermore, the spring-loaded touch buttons have high trigger sensitivity, allowing users to complete input with just a light press, making operation more convenient and efficient. The digital keypad, integrated into the mezzanine panel, has a smooth surface without excessive gaps or dead corners, preventing the accumulation of dust and dirt.

[0017] Furthermore, a camera module is integrated into the sandwich panel.

[0018] By adopting the above solution, users can remotely view people outside the door via a mobile app, conduct real-time video calls with visitors, and verify their identities before deciding whether to open the door. Combined with advanced facial recognition technology, the camera module can automatically recognize the facial features of authorized personnel, enabling automatic unlocking.

[0019] Furthermore, the lock panel is provided with a lock hole, and the transparent cover covers the lock hole.

[0020] Using the above methods, exposed keyholes are prone to dust accumulation. Dust entering the keyhole may affect the normal operation of the lock cylinder, leading to difficulty in unlocking. Covering the keyhole with a transparent cover can effectively prevent dust from entering and keep the inside of the keyhole clean.

[0021] Furthermore, the edges of the gripping holes are chamfered.

[0022] By adopting the above solution, if the edges of the gripping hole are sharp, users' fingers can easily be cut by the edges when inserting or withdrawing them during use. After adding a chamfer, the edges become rounded and smooth, effectively reducing friction and scratches with the skin of the fingers, greatly reducing the possibility of finger cuts and ensuring user safety. It also prevents dust accumulation.

[0023] Furthermore, the surface of the lock panel is covered with an oleophobic coating.

[0024] By employing the above-mentioned solution, the oleophobic coating possesses unique chemical properties that reduce the affinity between the lock panel surface and oil stains. In daily life, grease from fingers, kitchen fumes, and other substances easily adhere to the lock panel. The oleophobic coating effectively prevents these oil stains from adhering to the surface, keeping the lock panel relatively clean. For example, door locks installed near kitchens are frequently exposed to fumes, making ordinary lock panels prone to grease buildup. Lock panels coated with an oleophobic coating experience significantly less grease adhesion. Because the oleophobic coating offers advantages such as stain resistance, easy cleaning, and panel protection, it reduces wear and damage to the lock panel during daily use, thereby extending its lifespan. This can lower replacement costs for users of higher-priced smart locks or other high-end locks.

[0025] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0026] 1. The outward-protruding L-shaped mechanical handle design is abandoned, and a hidden handle design is adopted. Without the protruding handle structure, the problem of handle deformation or breakage caused by external impact (such as carrying items, children running and hitting, etc.) is fundamentally avoided, which greatly extends the service life of the lock body and reduces the maintenance costs and safety hazards caused by handle damage.

[0027] 2. In narrow corridors or entrance areas, traditional protruding handles are prone to causing people to bump into them, inconveniencing their passage. Concealed handle designs effectively reduce space occupation, avoid such bumps, and improve space utilization efficiency and safety, making them especially suitable for living environments with limited space.

[0028] 3. A fingerprint unlocking module is installed on the side of the gripping hole closest to the door. Users only need to insert their fingers into the gripping hole to perform fingerprint recognition and gripping operations simultaneously, which simplifies the unlocking process and improves the convenience and efficiency of unlocking.

[0029] 4. A tactile feedback module, including a pressure sensor and a vibration motor, is located on the side of the gripping hole facing the door. This module detects the insertion of a user's finger and provides confirmation feedback. When the user operates correctly, the vibration motor provides a vibration alert, clearly indicating whether the operation was successful, thus enhancing the user experience and confidence. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments 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.

[0031] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0032] Figure 2 This is a partial exploded structural diagram of an embodiment of the present invention;

[0033] Figure 3 This is a partial exploded structural diagram of an embodiment of the present invention.

[0034] Explanation of key figure labels:

[0035] 1. Lock panel; 11. Base part; 111. Base plate; 112. Bottom shell; 113. Circuit board; 12. Front end part; 121. Front frame; 122. Mezzanine plate; 123. Transparent cover; 2. Grip hole; 3. Fingerprint unlocking module; 4. Tactile feedback module; 41. Pressure sensor; 42. Vibration motor; 6. Emergency unlocking interface; 7. Digital dial; 8. Camera module; 9. Keyhole. Detailed Implementation

[0036] 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.

[0037] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0038] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0039] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0040] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0041] The technical solution of this utility model will be further described below with reference to the embodiments and accompanying drawings.

[0042] Please refer to Embodiment 1 of this utility model. Figures 1 to 3 As shown, a smart door lock with a hidden handle is provided for mounting on a door. It includes a lock panel 1, a gripping hole 2, a fingerprint unlocking module 3, a haptic feedback module 4, and an emergency unlocking interface 6. The lock panel 1 is fixed to the door (not shown) with screws and features a streamlined, one-piece design with no protruding structures on the surface. The gripping hole 2 extends horizontally through the width of the lock panel 1, with an elliptical cross-section of 20cm major axis and 15cm minor axis, preferably within the range of 15–25cm. This shape can cover the hand size of most adults, allowing users with both large and small hands to comfortably insert their fingers into the gripping hole 2 for operation, improving convenience and comfort. The circular or ellipsoidal shape better conforms to the natural gripping motion of the human hand. The edges of the gripping hole 2 are rounded with an R5 radius to reduce the risk of finger scratches. If the edges of the gripping hole 2 were sharp, users could easily be cut by the edges when inserting or withdrawing their fingers during use. After chamfering, the edges become rounded and smooth, effectively reducing friction and scratches with the skin of the fingers, greatly reducing the possibility of finger injuries and ensuring user safety. It also prevents dust accumulation. The fingerprint unlocking module 3 is integrated into the inner wall of the gripping hole 2 near the door. When the user inserts their finger, it naturally contacts the recognition area. The tactile feedback module 4 is located on the inner wall of the gripping hole 2 facing the door and includes a pressure sensor 41 and a vibration motor 42. When the pressure sensor 41 detects a finger insertion pressure ≥0.5N, it triggers the vibration motor 42 to generate a short pulse feedback (frequency 50Hz, lasting 0.1s), indicating that the operation is ready. The emergency unlocking interface 6 is hidden at the bottom of the lock panel 1, covered by a magnetic cover, and contains a mechanical lock hole 9. Inserting a key drives the bolt to retract. The user's gripping action and fingerprint recognition are completed simultaneously, eliminating the risk of collision with traditional handles; the chamfered design improves security and ease of cleaning.

[0043] In some embodiments, the lock panel 1 includes a base portion 11 and a front end portion 12. The base portion 11 is mounted on the door body, and the front end portion 12 is mounted on the base portion 11. The gripping hole 2 is located between the base portion 11 and the front end portion 12. The base portion 11 is tightly connected to the door body, providing stable support for the lock panel 1. The front end portion 12 is firmly fixed to the base, enhancing the overall structural stability, resisting external impacts and vibrations, reducing loosening and damage, and lowering the risk of being violently damaged.

[0044] In this embodiment 1, the base portion 11 includes a base plate 111, a base shell 112, and a circuit board 113. The base plate 111 is fixed to the door body by expansion bolts, and the base shell 112 is snap-fitted to the base plate 111. A sealing ring is provided at the joint, and the fingerprint unlocking module 3 is embedded in the surface of the base shell 112 and sealed with waterproof adhesive. The circuit board 113 is fixed between the base shell 112 and the base plate 111 and dissipates heat through thermally conductive silicone. This rapid assembly method can significantly shorten the production cycle and increase production capacity. The fingerprint unlocking module 3 is embedded in the surface of the base shell 112, which provides a certain degree of protection, preventing the fingerprint unlocking module 3 from being subjected to external impacts, scratches, and dust contamination. The snap-fit ​​connection between the base shell 112 and the base plate 111, as well as the fixing method of the circuit board 113, give the base portion 11 high structural stability. It can effectively resist external impacts and vibrations, preventing the smart lock from loosening or being damaged during use, thus improving the security and reliability of the smart lock.

[0045] In this embodiment 1, the front end portion 12 includes a front frame 121, a mezzanine plate 122, and a transparent cover 123. The front frame 121 is fixed to the base portion 11 with screws. The tactile feedback module 4 is embedded inside the front frame 121. The mezzanine plate 122 is mounted on the front side of the front frame 121 and integrates a digital disk 7. The transparent cover 123 covers the front side of the mezzanine plate 122, concealing the lock hole 9 of the emergency unlocking interface 6. When the user inserts their finger into the gripping hole 2 to operate, the tactile feedback module 4 can detect the pressure of the finger in a timely and accurate manner and provide operation confirmation feedback through the vibration motor 42, enhancing the interactive experience between the user and the smart lock and improving the accuracy and convenience of operation. The transparent cover 123 covers the front side of the mezzanine plate 122, has a smooth surface, and is easy to clean. The user can easily wipe the transparent cover 123 with a damp cloth or detergent to keep the front end portion 12 of the smart lock clean and aesthetically pleasing.

[0046] In some embodiments, a numeric keypad 7 is integrated on the mezzanine plate 122. The numeric keypad 7 is equipped with spring-loaded touch buttons. The key layout is relatively concentrated and clear. When entering a password, the user's finger can quickly and accurately locate the required key, reducing the possibility of accidental presses. Furthermore, the spring-loaded touch buttons have high trigger sensitivity; the user only needs to press lightly to complete the input, making operation more convenient and efficient. The numeric keypad 7 is integrated on the mezzanine plate 122, with a smooth surface and no excessive gaps or dead corners, making it difficult for dust and dirt to accumulate. It should be noted that the spring-loaded touch buttons use capacitive sensing technology, with a false touch rate of <1%, and support for decoy passwords to prevent peeping.

[0047] In some embodiments, optionally, a camera module 8 is integrated on the mezzanine plate 122. The camera module 8 supports facial recognition and remote monitoring. Users can remotely view people outside the door via a mobile app, conduct real-time video calls with visitors, and verify their identities before deciding whether to open the door. Combined with advanced facial recognition technology, the camera module 8 can automatically recognize the facial features of authorized personnel to achieve automatic unlocking.

[0048] In this embodiment 1, the lock panel 1 is provided with a lock hole 9, which corresponds to the emergency unlocking interface. The transparent cover 123 covers the lock hole 9. Exposed lock holes 9 are prone to dust accumulation, and dust entering the interior of the lock hole 9 may affect the normal operation of the lock cylinder, leading to difficulty in unlocking. Covering the lock hole 9 with the transparent cover 123 effectively prevents dust from entering and keeps the interior of the lock hole 9 clean.

[0049] In some embodiments, the lock panel 1 is coated with an oleophobic coating. Specifically, the lock panel 1 is coated with a nano-silica oleophobic coating with a contact angle >110°, significantly reducing the adhesion of oil and fingerprints. The oleophobic coating has special chemical properties that reduce the affinity between the lock panel 1 surface and oil. In daily life, grease from fingers, kitchen fumes, etc., easily adhere to the lock panel 1. The oleophobic coating can effectively prevent these oil stains from adhering to the surface, keeping the lock panel 1 relatively clean. For example, door locks installed near kitchens are frequently affected by fumes, and ordinary lock panels 1 are easily covered with oil stains, while lock panels 1 coated with an oleophobic coating can greatly reduce oil adhesion. Because the oleophobic coating has advantages such as stain resistance, easy cleaning, and panel protection, it can reduce wear and damage to the lock panel 1 in daily use, thereby extending the service life of the lock panel 1. This can reduce replacement costs for users of some expensive smart door locks or other high-end locks.

[0050] When the user unlocks:

[0051] Insert your hand into the gripping hole 2, and your finger will naturally contact the fingerprint unlocking module 3; the pressure sensor 41 triggers vibration feedback and fingerprint verification at the same time; after successful verification, the electric lock tongue will automatically retract; the user can directly pull the edge of the gripping hole 2 to open the door; if the electronic system malfunctions, open the emergency interface cover and the mechanical key will unlock the door.

[0052] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0053] 1. The outward-protruding L-shaped mechanical handle design is abandoned, and a hidden handle design is adopted. Without the protruding handle structure, the problem of handle deformation or breakage caused by external impact (such as carrying items, children running and hitting, etc.) is fundamentally avoided, which greatly extends the service life of the lock body and reduces the maintenance costs and safety hazards caused by handle damage.

[0054] 2. In narrow corridors or entrance areas, traditional protruding handles are prone to causing people to bump into them, inconveniencing their passage. Concealed handle designs effectively reduce space occupation, avoid such bumps, and improve space utilization efficiency and safety, making them especially suitable for living environments with limited space.

[0055] 3. A fingerprint unlocking module 3 is provided on the side of the grasping hole 2 near the door. Users only need to insert their fingers into the grasping hole 2 to perform fingerprint recognition and grasping operations at the same time, which simplifies the unlocking process and improves the convenience and efficiency of unlocking.

[0056] 4. A tactile feedback module 4, located on the side of the gripping hole 2 facing the door, includes a pressure sensor 41 and a vibration motor 42. This module detects the insertion of a user's finger and provides confirmation feedback. When the user operates correctly, the vibration motor 42 provides a vibration alert, clearly indicating whether the operation was successful, thus enhancing the user experience and confidence.

[0057] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A smart door lock with hidden handle for assembly to a door body, characterized in that, include: A lock panel (1) is provided with a horizontally arranged gripping hole (2), which penetrates the width direction of the lock panel (1); The gripping hole (2) is provided with a fingerprint unlocking module (3) on the side near the door; The gripping hole (2) is provided with a tactile feedback module (4) on the side facing the door. The tactile feedback module (4) includes a pressure sensor (41) and a vibration motor (42), which is used to detect the insertion of the user's finger and provide operation confirmation feedback. An emergency unlocking interface (6) is hidden on the surface of the lock panel (1) and is used for mechanical unlocking by triggering a key.

2. The smart door lock with hidden handle according to claim 1, characterized in that, The cross-sectional area of ​​the gripping hole (2) is circular or ellipsoidal, and the maximum diameter of the gripping hole (2) is in the range of 15cm-25cm.

3. The smart door lock with hidden handle according to claim 1, characterized in that, The lock panel (1) includes: A base portion (11) is mounted on the door body; The front end portion (12) is mounted on the base portion (11), and the gripping hole (2) is located between the base portion (11) and the front end portion (12).

4. The smart door lock with hidden handle according to claim 3, characterized in that, The base portion (11) includes: Base plate (111); The bottom shell (112) is fastened to the bottom plate (111), and the fingerprint unlocking module (3) is embedded in the surface of the bottom shell (112). Circuit board (113), the circuit board (113) is fixed between the bottom shell (112) and the bottom plate (111).

5. The smart door lock with hidden handle according to claim 3, characterized in that, The front end portion (12) includes: A front frame (121) is fixed to the base portion (11), and the haptic feedback module (4) is embedded in the front frame (121). A sandwich panel (122) is fitted to the front side of the front end frame (121); A transparent cover (123) covers the front side of the interlayer plate (122).

6. The smart door lock with hidden handle according to claim 5, characterized in that, The interlayer plate (122) is integrated with a digital disk (7), which is equipped with spring-loaded touch buttons.

7. The smart door lock with hidden handle according to claim 5, characterized in that, A camera module (8) is integrated on the sandwich panel (122).

8. The smart door lock with hidden handle according to claim 5, characterized in that, The lock panel (1) is provided with a lock hole (9), and the transparent cover (123) covers the lock hole (9).

9. The smart door lock with hidden handle according to claim 1, characterized in that, The edge of the gripping hole (2) is chamfered.

10. A smart door lock with a concealed handle according to claim 1, characterized in that, The surface of the lock panel (1) is covered with an oleophobic coating.

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