Front handle integrated wiring-free intelligent door lock
By integrating a wiring-free design into the front handle and establishing clear unlocking priority logic, the complex wiring and difficult security management of existing door locks are solved, enabling convenient installation, maintenance, and efficient and secure smart door locks.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-10
- Publication Date
- 2026-04-03
AI Technical Summary
Existing door locks have complex wiring, high failure rates, are inconvenient to install and maintain, and lack clear priority logic design, leading to security vulnerabilities and difficulties in access control.
It adopts a front handle integrated wiring-free design, and uses a mechanical lock cylinder to drive the electronic unlocking mechanism. Combined with a keypad and fingerprint sensor, it realizes the shared insertion rod for mechanical and electronic unlocking, optimizes the overall structure, and sets clear unlocking priority logic.
It improves the ease of installation and maintenance of door locks, optimizes the overall structure, ensures the scientific nature of security and access control, and reduces failure rate and security vulnerabilities.
Smart Images
Figure CN224078861U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a lock, and more particularly to a smart door lock with an integrated front handle that eliminates the need for wiring. Background Technology
[0002] In the past, in order to enable the coordinated operation of various functional components, door locks required the control board, motor, fingerprint sensor, keypad, and other components to be installed on the front and rear handles respectively, and power and signals were transmitted through wires. This wiring method resulted in complex installation, high failure rate and inconvenient maintenance. For example, aging wires could easily cause functional failure, and the wiring could damage the door structure and affect its appearance.
[0003] On the other hand, traditional electronic locks have obvious defects in the priority control of unlocking and deadbolting: existing technologies often lack clear priority logic design. When the electronic deadbolting state is triggered at the same time as different users' unlocking commands, the system is prone to control logic confusion, leading to security vulnerabilities. In addition, the unlocking permissions of ordinary users and administrators lack scientific hierarchical control, often resulting in problems such as permission overstepping or unlocking failure, which makes it difficult to meet the needs of high-end scenarios for security level management. Summary of the Invention
[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a smart door lock with integrated front handle that eliminates the need for wiring.
[0005] The technical solution adopted by this utility model to solve its technical problem is:
[0006] A smart door lock with an integrated front handle and no wiring is disclosed, comprising a front handle, a rear handle, a square tube disposed between the front and rear handles for driving the lock cylinder to unlock, and a decoding disc mounted on the front handle. An inner core is fixedly mounted at one end of the front handle near the rotation axis. An unlocking sleeve that rotates synchronously with the square tube is fitted onto the outer side of the inner core. An electronic unlocking mechanism driven by a mechanical lock cylinder is mounted at the other end of the front handle. The electronic unlocking mechanism is electrically connected to the decoding disc. The electronic unlocking mechanism has a rod inserted into the unlocking sleeve, causing the front handle to rotate the unlocking sleeve. A tactile switch electrically connected to the electronic unlocking mechanism is installed inside the inner core. A deadbolt knob for controlling the tactile switch is provided on the rear handle.
[0007] The front handle is equipped with a control board that is electrically connected to the electronic unlocking mechanism. The tactile switch is located on the control board. The inner core is a hollow structure and is sleeved on the outside of the tactile switch. The inner core is equipped with a push block for pushing the tactile switch. The deadbolt is equipped with a rotating rod that passes through the square tube. The end of the rotating rod is fixed with a rotating block that drives the push block to slide.
[0008] The end of the rotating block is a triangular inclined groove, and the push block is provided with a triangular inclined protrusion corresponding to the triangular inclined groove. The triangular inclined groove is embedded in the triangular inclined protrusion.
[0009] The front handle is equipped with a push rod driven by the mechanical lock cylinder, and the electronic unlocking mechanism is fixedly installed on the push rod.
[0010] The unlocking sleeve has an insertion hole corresponding to the side wall of the square tube, and the insertion rod is inserted into the insertion hole.
[0011] The front handlebar contains a battery that is electrically connected to the electronic unlocking mechanism.
[0012] The decoding disk consists of a password disk and a fingerprint disk.
[0013] The beneficial effects of this utility model are as follows: This utility model includes a front handle, a rear handle, a square tube, and a decoding disc installed on the front handle. An inner core is fixedly installed at one end of the front handle near the rotation axis. An unlocking sleeve that rotates synchronously with the square tube is fitted on the outer side of the inner core. An electronic unlocking mechanism driven by a mechanical lock cylinder is installed at the other end of the front handle. The electronic unlocking mechanism is electrically connected to the decoding disc. The electronic unlocking mechanism is equipped with a plug rod that is inserted into the unlocking sleeve, causing the front handle to drive the unlocking sleeve to rotate. A tactile switch electrically connected to the electronic unlocking mechanism is installed in the inner core. A deadbolt knob for controlling the tactile switch is provided on the rear handle. All electronic components are installed in the front handle, eliminating the need for traditional wiring connections between the front and rear handles. This wiring-free design greatly improves the ease of installation and maintenance of the door lock. The electronic unlocking mechanism is slidable by the mechanical lock cylinder, causing the plug rod to be inserted into the unlocking sleeve. Mechanical unlocking and electronic unlocking share the plug rod for unlocking or locking, effectively optimizing the overall structure of the door lock. Attached Figure Description
[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0015] Figure 1 This is a structural diagram of the present invention;
[0016] Figure 2 This is an exploded view of the front handlebars;
[0017] Figure 3 This is a partial sectional view of the front handlebar;
[0018] Figure 4 This is a structural diagram of the electronic unlocking mechanism;
[0019] Figure 5 This is a cross-sectional view of the unlocked sleeve area;
[0020] Figure 6 This is a structural diagram of the unlocking sleeve;
[0021] Figure 7 This is a structural diagram of the rotating block;
[0022] Figure 8 This is a structural diagram of the push block. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.
[0024] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.
[0025] The following describes some embodiments of the present invention with reference to the accompanying drawings.
[0026] Reference Figure 1-8 A smart door lock with an integrated front handle and no wiring required includes a front handle 1, a rear handle 2, a square tube 3 disposed between the front handle 1 and the rear handle 2 for driving the lock cylinder to unlock, and a decoding disk 17 mounted on the front handle 1. An inner core 4 is fixedly mounted at one end of the front handle 1 near the rotation axis. An unlocking sleeve 5, which rotates synchronously with the square tube 3, is fitted onto the outer side of the inner core 4. An electronic unlocking mechanism 7, driven by a mechanical lock cylinder 6, is mounted at the other end of the front handle 1. The electronic unlocking mechanism 7 is electrically connected to the decoding disk 17. The electronic unlocking mechanism 7 has a plug 8 inserted into the unlocking sleeve 5, causing the front handle 1 to drive the unlocking sleeve 5 to rotate. A tactile switch 9, electrically connected to the electronic unlocking mechanism 7, is installed inside the inner core 4. The unlocking mechanism 7 is an existing structure, including a motor 23 for driving the insertion rod 8 and a spring 24 for driving the insertion rod 8. When the motor 23 rotates in the forward direction, the insertion rod 8 extends; when the motor 23 rotates in the reverse direction, the spring 24 pushes the insertion rod 8 to reset. The rear handle 2 is equipped with a deadbolt knob 10 for controlling the tactile switch 9. All electronic components are installed inside the front handle 1, eliminating the need for traditional wiring connections between the front and rear handles. This wiring-free design greatly improves the ease of installation and maintenance of the door lock. The mechanical lock cylinder 6 pushes the electronic unlocking mechanism 7 to slide as a whole, allowing the insertion rod 8 to be inserted into the unlocking sleeve 5. Mechanical unlocking and electronic unlocking share the insertion rod 8 for unlocking or locking, effectively optimizing the overall structure of the door lock.
[0027] The front handle 1 houses a control board 11 electrically connected to the electronic unlocking mechanism 7. The tactile switch 9 is mounted on the control board 11. The inner core 4 is hollow and sleeved over the tactile switch 9. A push block 12 for pushing the tactile switch 9 is located inside the inner core 4. The deadbolt knob 10 is fitted with a rotating rod 13 that passes through the square tube 3. A rotating block 14 for driving the push block 12 to slide is fixed to the end of the rotating rod 13. When the deadbolt knob 10 is rotated, the rotating rod 13 drives the rotating block 14, causing the push block 12 to slide inside the inner core 4 and press the tactile switch 9, thereby achieving the effect of electronic deadbolt.
[0028] The end of the rotating block 14 is a triangular inclined groove 15, and the push block 12 is provided with a triangular inclined protrusion 16 corresponding to the triangular inclined groove 15. The triangular inclined groove 15 is embedded in the triangular inclined protrusion 16. When the rotating block 14 rotates, the triangular inclined groove 15 rotates synchronously, and the triangular inclined protrusion 16 slides along the triangular inclined groove 15, ultimately achieving the sliding effect of the push block 12.
[0029] The front handle 1 is equipped with a push rod 22 driven by the mechanical lock cylinder 6, and the electronic unlocking mechanism 7 is fixedly installed on the push rod 22.
[0030] The unlocking sleeve 5 is provided with an insertion hole 18 corresponding to the side wall of the square tube 3. The insertion rod 8 is inserted into the insertion hole 18. In this embodiment, there are four insertion holes 18, that is, the unlocking sleeve 5 can be installed on the square tube 3 arbitrarily without considering the position of the insertion hole 18, which further improves the speed of installation.
[0031] The front handle 1 is equipped with a battery 19 that is electrically connected to the electronic unlocking mechanism 7.
[0032] The decoding disk 17 consists of a password disk 20 and a fingerprint disk 21. The fingerprint disk 21 can record the fingerprints of the administrator and ordinary users. In addition, the fingerprint disk 21 can be replaced by facial recognition. Similarly, facial recognition can also record the facial information of the administrator and ordinary users.
[0033] The rear handle 2 and the square tube 3 rotate synchronously at all times, that is, the unlocking sleeve 5 also rotates synchronously with the rear handle 2. When the insertion rod 8 is not inserted into the insertion hole 18, when the front handle 1 rotates, only the inner core 4 rotates synchronously, and the inner core 4 and the unlocking sleeve 5 rotate relative to each other.
[0034] Mechanical unlocking: When the key is turned forward, the mechanical lock cylinder 6 is pushed by the push rod 22 to move the electronic unlocking mechanism 7 towards the rotation axis, so that the insertion rod 8 is inserted into the insertion hole 18. At this time, when the front handle 1 is turned, the insertion rod 8 swings synchronously and drives the unlocking sleeve 5 to rotate, and finally the lock cylinder is unlocked through the square tube 3.
[0035] Mechanical deadbolt: When the key is turned in the reverse direction, the mechanical lock cylinder 6 is pulled away from the rotation axis by the push rod 22, causing the insertion rod 8 to exit from the insertion hole 18. At this time, when the front handle 1 is rotated, since the insertion rod 8 is separated from the insertion hole 18, it will not drive the unlocking sleeve 5 to rotate, and the door cannot be opened from the outside, thus achieving the deadbolt effect.
[0036] Electronic deadbolt: Turning the deadbolt knob 10 drives the rotating block 14 via the rotating rod 13, causing the push block 12 to slide within the inner core 4, pressing the tactile switch 9, and transmitting a signal to the control board 11, thereby controlling the electronic unlocking mechanism 7 to retract the insertion rod 8 from the insertion hole 18. At this time, turning the front handle 1 will not cause the unlocking sleeve 5 to rotate, making it impossible to open the door from the outside, thus achieving the deadbolt effect.
[0037] Electronic unlocking: There are two scenarios: unlocking by an administrator and unlocking by a regular user.
[0038] For unlocking by ordinary users, i.e., password unlocking, or fingerprint or facial recognition unlocking, the priority of this unlocking method is lower than that of the electronic deadbolt, as set by the program. When the electronic deadbolt is in the state, i.e. when the tactile switch 9 is pressed, unlocking is not possible.
[0039] For administrator unlocking, i.e., fingerprint or facial recognition unlocking, the priority of this unlocking method is set higher than that of electronic deadbolt through the program settings. After the administrator inputs information, the electronic unlocking mechanism 7 is controlled by the control board 11 to control the insertion rod 8 to be inserted into the insertion hole 18. At this time, the front handle 1 is rotated, the insertion rod 8 swings synchronously, and drives the unlocking sleeve 5 to rotate, and finally unlocks the lock cylinder through the square tube 3.
[0040] In this application, since both mechanical unlocking and deadbolt movement drive the electronic unlocking mechanism 7 to move as a whole, they are not affected by the electronic direction. Therefore, in this application, the priority order from high to low is: mechanical unlocking and deadbolt are the highest, administrator unlocking is the second highest, electronic deadbolt is the third highest, and ordinary user unlocking is the lowest.
[0041] In this application, when inside the door, the rear handle 2 can be turned at any time to unlock it. However, when outside the door, the front handle 1 can only be turned when the insertion rod 8 is inserted into the insertion hole 18. When the insertion rod 8 is separated from the insertion hole 18, the front handle 1 is in an idle state.
[0042] When the door is electronically locked from the inside, the tactile switch 9 is always pressed. When the user leaves, there are two possibilities: one is that the user forgets to release the electronic lock, and the user can only use the administrator's unlocking or mechanical unlocking when opening the door from the outside; the other is that the user releases the electronic lock, the tactile switch 9 is released, but the electronic unlocking mechanism 7 does not receive a start signal and does not react. When the user opens the door from the outside, since the tactile switch 9 is not pressed, all unlocking methods can be used.
[0043] In this invention, the term "multiple" refers to two or more items unless otherwise expressly defined. The term "and / or" as used herein includes any and all combinations of one or more of the related listed items. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0044] It should be noted that when a component is referred to as being "assembled on," "mounted on," "fixed to," or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0045] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0046] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A front handle integrated wiring-free smart door lock, comprising a front handle (1), a rear handle (2), a square tube (3) arranged between the front handle (1) and the rear handle (2) for driving a lock cylinder to be unlocked, and a decoding disc (17) mounted on the front handle (1), characterized in that The front handle (1) is fixedly installed with an inner core (4) near one end of the rotating shaft, the outer side of the inner core (4) is sleeved with an unlocking sleeve (5) rotating synchronously with the square tube (3), the other end of the front handle (1) is installed with an electronic unlocking mechanism (7) pushed by a mechanical lock core (6), the electronic unlocking mechanism (7) is electrically connected with the decoding disc (17), the electronic unlocking mechanism (7) is installed with an insertion rod (8) inserted into the unlocking sleeve (5) to drive the unlocking sleeve (5) to rotate with the front handle (1), the inner core (4) is installed with a micro switch (9) electrically connected with the electronic unlocking mechanism (7), and the rear handle (2) is provided with an anti-lock knob (10) for controlling the micro switch (9).
2. The front handle integrated wire-free smart door lock of claim 1, wherein The front handle (1) is installed with a control board (11) electrically connected with the electronic unlocking mechanism (7), the micro switch (9) is arranged on the control board (11), the inner core (4) is a hollow structure and is sleeved outside the micro switch (9), the inner core (4) is provided with a push block (12) for pushing the micro switch (9), and the anti-lock knob (10) is installed with a rotating rod (13) penetrating in the square tube (3), and the end of the rotating rod (13) is fixedly connected with a rotating block (14) for driving the push block (12) to slide.
3. The front handle integrated wire-free smart door lock of claim 2, wherein The end of the rotating block (14) is a triangular inclined groove (15), the push block (12) is provided with a triangular inclined convex (16) corresponding to the triangular inclined groove (15), and the triangular inclined groove (15) is embedded in the triangular inclined convex (16).
4. The front handle integrated wire-free smart door lock of claim 1, wherein The front handle (1) is installed with a push rod (22) driven by the mechanical lock core (6), and the electronic unlocking mechanism (7) is fixedly installed on the push rod (22).
5. The front handle integrated wire-free smart door lock of claim 1, wherein The unlocking sleeve (5) is provided with an insertion hole (18) corresponding to the side wall of the square tube (3), and the insertion rod (8) is inserted into the insertion hole (18).
6. The front handle integrated wire-free smart door lock of claim 1, wherein The front handle (1) is installed with a battery (19) electrically connected with the electronic unlocking mechanism (7).
7. The front handle integrated wire-free smart door lock of claim 1, wherein The decoding disc (17) is composed of a password disc (20) and a fingerprint disc (21).