A multi-unlocking mode intelligent door lock

Abstract

The utility model belongs to the intelligent security technology field especially relates to a multi -unlocking mode's intelligent door lock, including upper box body, lower box body, lock hole block, transmission assembly, connecting column, limit ring and air cylinder, the upper box body is freely connected with lower box body, the upper box body is rotatably installed with lock hole block, is connected with transmission assembly on the lock hole block, is connected with connecting column on transmission assembly, is installed with limit ring on the lower box body, is installed with air cylinder in limit ring. The utility model discloses through the password input trigger electronic module control air cylinder drive rack and card block telescoping, or through the key rotation drives lock hole block, transmission assembly and gear linkage, extends the lock door or retracts and opens the door, reaches multiple security protection, the flexible and convenient operation, the effect that still can open in emergency when power failure.

Description

Technical Field

[0001] This utility model belongs to the field of intelligent security technology, and in particular relates to an intelligent door lock with multiple unlocking methods. Background Technology

[0002] With the rapid development of the smart home industry, smart locks, as core products for home security and convenient entry, have been widely used in residences, apartments, offices, and other settings. Compared to traditional mechanical locks, smart locks integrate electronic control, biometric identification, and wireless communication technologies, significantly improving security and convenience. In recent years, user demands for smart lock functionality have continuously evolved, from initial single password unlocking to comprehensive lock systems supporting multiple unlocking methods such as fingerprint, NFC, remote control, and facial recognition, driving the continuous innovation and popularization of smart access control technology.

[0003] However, existing smart locks still have many technical shortcomings. First, some low- to mid-range products have limited unlocking methods, supporting only a single or a few authentication modes, making it difficult to meet the needs of multiple users and multiple scenarios. Second, most smart locks rely on built-in batteries for power. Once the battery is depleted, it often requires temporary external power or complete disassembly and battery replacement, which is cumbersome and poses safety hazards, especially in emergencies where it may prevent the door from opening. In addition, some structural designs are unreasonable, lacking reliable mechanical emergency exits, making maintenance difficult and affecting long-term stability and user experience.

[0004] Therefore, in order to solve the above-mentioned technical problems, this utility model provides a smart door lock with multiple unlocking methods that can still be operated in an emergency during a power outage. Utility Model Content

[0005] The purpose of this utility model is to provide a smart door lock with multiple unlocking methods, which aims to solve the technical problems that most existing smart door locks have only one unlocking method and are difficult to open normally after a power outage.

[0006] To achieve the above objectives, this utility model provides a smart door lock with multiple unlocking methods, comprising an upper housing, a lower housing, a lock hole block, a transmission assembly, a connecting column, a gear, a rack, a locking block, a cylinder, a telescopic rubber, a limiting ring, an electronic module, and a touch screen. The lower housing is movably latched onto the upper housing. The lock hole block is rotatably mounted on the upper housing. The transmission assembly is connected to the lock hole block, and the connecting column is connected to the transmission assembly. A gear is rotatably mounted inside the lower housing. The connecting column is connected to the gear shaft. A limiting ring is mounted on the lower housing. A cylinder is installed inside the limiting ring. A telescopic rubber is connected to the cylinder piston rod. A rack is connected to the telescopic rubber. The gear meshes with the rack. A locking block is connected to one end of the rack. An electronic module is installed inside the upper housing. A touch screen is mounted on the upper housing, and the touch screen is electrically connected to the electronic module.

[0007] Optionally, an electronic peephole is installed on the upper box, and a display screen is installed on the lower box.

[0008] Optionally, the NFC sensing terminal is provided on the upper housing.

[0009] Optionally, a sliding plate is mounted on the upper box.

[0010] Optionally, a fingerprint contact segment is provided on the upper box.

[0011] Optionally, a doorbell is provided on the upper box.

[0012] Optionally, the lower housing has several sound outlets.

[0013] Optionally, a mute button is provided on the lower housing.

[0014] Optionally, a touch switch is provided on the lower housing.

[0015] Optionally, a plurality of cylindrical blocks are installed on the upper box body, and cylindrical grooves are opened at corresponding positions on the lower box body, with the cylindrical blocks and cylindrical grooves being movably engaged.

[0016] The multi-unlocking smart door lock provided in this embodiment of the utility model has at least one of the following technical effects: Password input triggers an electronic module to control a cylinder to drive a rack and pinion to extend and retract, or key rotation drives a lock hole block, transmission components, and gears to extend the lock or retract the door, achieving multiple security protections, flexible and convenient operation, and emergency opening even in the event of a power outage. Through electronic peephole, NFC sensing, fingerprint module on a sliding plate for biometric identification, doorbell reminders and a mute button to silence the door, and touch switches to control door opening and closing, real-time external monitoring and multiple intelligent unlocking methods are achieved, resulting in intuitive monitoring, convenient operation, and quiet and controllable operation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, 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.

[0018] Figure 1 This is a three-dimensional structural diagram of a smart door lock with multiple unlocking methods provided for an embodiment of the present utility model.

[0019] Figure 2An exploded three-dimensional view of a smart door lock with multiple unlocking methods provided in an embodiment of this utility model.

[0020] Figure 3 This invention provides a smart door lock with multiple unlocking methods.

[0021] The following are the labeling elements in the figure:

[0022] 1—Upper box body 2—Lower box body 3—Keyhole block 4—Transmission assembly; 5—Connecting column; 6—Gear 7—Rack and pinion; 8—Clamping block; 9—Cylinder 10—Telescopic rubber 11—Limiting ring 12—Electronic module 13—Touchscreen 14—Electronic peephole 1401—Display screen 15—NFC sensor terminal; 16—Slide plate; 17—Fingerprint contact segment 18—Doorbell 1801—Voice Emplacement 19—Door Stop Button 20—Touch switch. Detailed Implementation

[0023] The embodiments of this utility model are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The following description is based on the accompanying drawings. Figures 1-3 The described embodiments are exemplary and intended to explain embodiments of the present invention, and should not be construed as limiting the present invention.

[0024] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0027] In one embodiment of this utility model, such as Figures 1 to 2 As shown, a smart door lock with multiple unlocking methods is provided, including an upper housing 1, a lower housing 2, a lock hole block 3, a transmission assembly 4, a connecting post 5, a gear 6, a rack 7, a locking block 8, a cylinder 9, a telescopic rubber 10, a limit ring 11, an electronic module 12, and a touch screen 13. The upper housing 1 and the lower housing 2 adopt a movable snap-fit ​​structure, which facilitates installation, disassembly, and later maintenance, while ensuring the stability and sealing of the overall structure. The left side of the upper housing 1 has a rotatably installed lock hole block 3 for inserting a mechanical key for emergency operation. The lock hole block 3 is connected to the transmission assembly 4, and the transmission assembly 4 is connected to the connecting post 5. The gear 6 is rotatably installed inside the lower housing 2, and the connecting post 5 is connected to the shaft of the gear 6. The lock hole block 3 is connected to the internal connecting post 5 through the transmission assembly 4. When the key rotates the lock hole block 3, the power is transmitted to the connecting post 5 through the transmission assembly 4, driving it to rotate. The connected gear 6 rotates synchronously. A limiting ring 11 for fixing and guiding is installed on the lower box 2. A cylinder 9 is installed inside the limiting ring 11. A telescopic rubber 10 is connected to the piston rod of the cylinder 9. It has good elasticity and wear resistance and can also reduce impact and extend service life during reciprocating motion. A rack 7 is connected to the telescopic rubber 10. A locking block 8 is connected to the left end of the rack 7. The gear 6 meshes with the rack 7 installed in the lower box 2, thereby driving the rack 7 to move linearly along the axial direction, realizing the extension or retraction of the locking block 8, and completing the mechanical locking and unlocking action. An electronic module 12 is installed inside the upper box 1. It serves as the control center of the entire door lock and is responsible for receiving, verifying and responding to various unlocking commands. A touch screen 13 is provided on the outer surface of the upper box 1 and is electrically connected to the electronic module 12. Users can enter a password through the touch screen 13 to complete identity verification and trigger the cylinder 9 to perform the unlocking action.

[0028] Specifically, when the door needs to be opened or closed, firstly, the user enters a preset password through the touch screen 13. After receiving the correct password signal, the electronic module 12 controls the cylinder 9 to start. The cylinder 9 drives the telescopic rubber 10 to extend, causing the rack 7 and the locking block 8 connected to it to move outward. The locking block 8 extends and accurately engages with the corresponding position on the door frame, thereby closing the door. Conversely, to open the door, the electronic module 12 controls the cylinder 9 to move in the opposite direction, causing the locking block 8 to retract and unlock. To increase the flexibility and security of use, the user can also insert a key into the hole of the lock block 3 and turn the key. The lock block 3 rotates accordingly and transmits power to the connecting column 5 through the transmission component 4. The connecting column 5 is connected to the gear 6. When the connecting column 5 rotates, the gear 6 also rotates, causing the rack 7 that meshes with it to move out or retract, thereby completing the opening and closing of the door.

[0029] In this embodiment, as Figures 2 to 3 As shown, it also includes an electronic peephole 14, a display screen 1401, an NFC sensor 15, a sliding plate 16, a fingerprint contact segment 17, a doorbell 18, a sound outlet 1801, a mute button 19, and a touch switch 20. The high-definition electronic peephole 14 is integrated on the front of the upper box 1, capable of collecting real-time images or video information of the external environment and transmitting it to the display screen 1401 on the lower box 2 via internal circuitry. This allows users to clearly view visitor status and external dynamics from inside the door, achieving contactless security confirmation. The upper box has an NFC sensor 15, supporting authorized NFC cards or smartphones for proximity recognition. After successful system verification, an unlocking command is automatically triggered, enabling seamless access. To protect privacy and prevent accidental touches, the fingerprint contact segment 17 is hidden. A sliding plate 16 is mounted on the upper box 1, normally covering the fingerprint contact segment 17. When in use, manually sliding the sliding plate 16 reveals the fingerprint contact segment 17. Upon contact, the system performs biometric comparison. If the verification is successful, the cylinder 9 is activated to unlock the door, balancing security and aesthetics. A doorbell 18 is installed on the upper box 1, allowing visitors to issue a call signal by pressing it. Six evenly distributed sound outlets 1801 are located on the lower box 2 to ensure clear sound transmission. A mute button 19 is also located on the lower box 2, allowing the homeowner to activate a "silent mode" that disables the doorbell 18, preventing external pressing from triggering the ringing and enhancing flexibility and privacy. A touch switch 20 is also located on the lower box 2, allowing users to control the door's opening and closing from inside the house with a single button. Columnar blocks are installed at the four corners of the upper box 1, and corresponding columnar grooves are provided on the lower box 2. The columnar blocks and grooves are movably interlocked, ensuring a stable assembly between the upper and lower boxes and facilitating future disassembly, maintenance, or replacement of internal components.

[0030] Specifically, when it is necessary to monitor the real-time situation outside the door, the electronic peephole 14 on the door can capture images of the external environment in real time and transmit the images clearly to the display screen 1401 inside the door, allowing residents to intuitively view visitors or external dynamics without opening the door. In terms of door opening methods, the system supports multiple smart unlocking modes. Users can bring an authorized NFC card or mobile phone close to the NFC sensing terminal 15 on the door, and the system will automatically trigger the door opening mechanism after recognition, realizing contactless and fast passage. Alternatively, by sliding the slide plate 16 to expose the fingerprint contact segment 17, the system will automatically unlock the door after the finger touches it and the verification is successful. In addition, visitors can remind people inside the house by pressing the doorbell 18. The homeowner can choose to respond or activate the "no-bell mode" as needed. After pressing the no-bell button 19, the doorbell 18 function is temporarily disabled, and no sound will be made even if it is pressed from the outside, so as to avoid disturbing private scenarios such as rest or meetings. At the same time, there is a touch switch 20 inside the door, and the homeowner can manually control the opening and closing of the door at any time.

[0031] 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 and improvements 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 smart door lock with multiple unlocking methods, characterized in that: The device includes an upper box, a lower box, and a locking block. The lower box is movably latched onto the upper box, and the locking block is rotatably mounted on the upper box. A transmission assembly is connected to the locking block, and a connecting column is connected to the transmission assembly. A gear is rotatably mounted inside the lower box, and the connecting column is connected to the gear shaft. A limit ring is installed on the lower box, and a cylinder is installed inside the limit ring. A telescopic rubber is connected to the cylinder piston rod, and a rack is connected to the telescopic rubber. The gear meshes with the rack, and a locking block is connected to one end of the rack. An electronic module is installed inside the upper box, and a touch screen is installed on the upper box. The touch screen is electrically connected to the electronic module.

2. The smart door lock with multiple unlocking methods according to claim 1, characterized in that: An electronic peephole is installed on the upper box, and a display screen is installed on the lower box.

3. The smart door lock with multiple unlocking methods according to claim 1, characterized in that: An NFC sensor is provided on the upper housing.

4. A smart door lock with multiple unlocking methods according to claim 1, characterized in that: A sliding plate is mounted on the upper box.

5. A smart door lock with multiple unlocking methods according to claim 1, characterized in that: The upper box is equipped with a fingerprint contact area.

6. A smart door lock with multiple unlocking methods according to claim 1, characterized in that: A doorbell is installed on the upper box.

7. A smart door lock with multiple unlocking methods according to claim 1, characterized in that: The lower housing has several sound outlets.

8. A smart door lock with multiple unlocking methods according to claim 1, characterized in that: A mute button is provided on the lower box.

9. A smart door lock with multiple unlocking methods according to claim 1, characterized in that: A touch switch is provided on the lower box.

10. A smart door lock with multiple unlocking methods according to claim 1, characterized in that: The upper box is equipped with several cylindrical blocks, and the lower box has corresponding cylindrical slots. The cylindrical blocks and cylindrical slots are movably connected.

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