An intelligent door lock

By employing a dual connection mechanism and spring structure design, the problems of time-consuming and unreliable installation of traditional smart door locks are solved, enabling quick disassembly and sealing, and improving the maintenance efficiency and environmental adaptability of smart door locks.

CN224591918UActive Publication Date: 2026-08-04SHAANXI ZHONGYU TECHNOLOGY CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHAANXI ZHONGYU TECHNOLOGY CO LTD
Filing Date
2025-06-18
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Traditional smart door locks are time-consuming and unreliable to install, their circuit connections are easily affected by vibration, and their waterproof design is inadequate, resulting in high maintenance costs and limiting the product's application in complex environments.

Method used

The device employs a dual connection mechanism and spring structure to enable quick assembly and disassembly of the button panel and front panel. The combination of the limiting mechanism and spring simplifies the disassembly process, and the design of the sealing strip improves installation efficiency and reliability.

Benefits of technology

It enables quick disassembly of the button panel without additional tools, facilitating maintenance and inspection, reducing maintenance costs, and improving installation efficiency and environmental adaptability.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses an intelligent door lock, belonging to the field of intelligent lock technology. An intelligent door lock includes a front panel, a rear panel, and a lock body. The front and rear panels are respectively installed on both sides of the lock body. A button panel is provided on the front panel, and the button panel is movably connected to the front panel via a connecting component. A handle is provided on the front panel, and a through hole is opened on the button panel. The mounting end of the handle passes through the through hole and is movably connected to the front panel. This utility model achieves quick assembly and disassembly of the button panel and the front panel through the dual design of a first connecting mechanism and a second connecting mechanism. The elastic force of the first spring drives the limiting strip to automatically engage with the insertion strip groove, and the second spring pushes the insertion block to accurately embed into the second connecting groove. The push plate and the third spring, when the button panel is removed after the handle is removed, push the button panel upwards, and the third spring will also push the push plate upwards under the action of elastic force, thereby facilitating the upward removal of the button panel and greatly improving maintenance efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of smart lock technology, and more specifically, to a smart door lock. Background Technology

[0002] With the popularization of smart homes, the reliability and efficiency of the installation structure of smart door lock button panels, as core interactive components, are crucial. Traditional installation methods, which mostly use screw fixing and ribbon cable soldering, have significant shortcomings: mechanical connections rely on screws or ABS clips with insufficient elasticity, resulting in time-consuming installation (5-8 minutes per set), poor tolerance adaptability, and a high rate of after-sales failure due to loosening or clip breakage caused by vibration and temperature differences over long-term use; electrical connections rely on rigid ribbon cable soldering or short-life sockets, making them susceptible to vibration-induced poor soldering and short circuits, leading to high after-sales maintenance costs; waterproof designs often rely on single-point sealant, providing insufficient protection, and the difference in thermal expansion between the panel and the front panel under high and low temperature environments can cause button jamming. The limitations of existing technologies in terms of installation efficiency, reliability, maintenance costs, and environmental adaptability restrict the application of products in complex scenarios. Therefore, we propose a new smart door lock. Utility Model Content

[0003] The purpose of this invention is to provide an intelligent door lock to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A smart door lock includes a front panel, a rear panel, and a lock body. The front panel and the rear panel are respectively installed on both sides of the lock body. A button panel is provided on the front panel, and the button panel is movably connected to the front panel through a connecting component. A handle is provided on the front panel, and a through hole is provided on the button panel. The mounting end of the handle passes through the through hole and is movably connected to the front panel.

[0005] Preferably, the connecting component includes a first connecting mechanism and a second connecting mechanism. A step is provided on the front side of the button panel, the first connecting mechanism is located at the step, and the second connecting mechanism is located between the upper side of the button panel and the front panel.

[0006] Preferably, the first connecting mechanism includes a plug strip, which is disposed at the end of the button panel. A groove is provided on the side of the plug strip, and a first connecting groove is provided on the step. The plug strip can extend into the first connecting groove. A limiting mechanism is provided in the first connecting groove, and the limiting mechanism cooperates with the groove.

[0007] Preferably, the limiting mechanism includes a limiting strip, a connecting post connected to the side of the limiting strip, one end of the connecting post extending into the limiting strip and slidingly engaging with the limiting strip, and a first spring sleeved on the outer end of the connecting post, one end of the first spring being connected to the inner wall of the connecting groove and the other end of the first spring being connected to the side wall of the limiting strip.

[0008] Preferably, the second connecting mechanism includes a plug, a plurality of second springs are connected to the rear side of the plug, a mounting groove is provided on the front panel, the plug slides into the mounting groove, the other end of the second spring is connected to the inner wall of the mounting groove, a second connecting groove is provided on the button panel, and the plug is inserted into the second connecting groove.

[0009] Preferably, a push plate is provided at the bottom of the first connecting groove, and a plurality of third springs are provided on the bottom surface of the push plate, with the bottom ends of the third springs connected to the bottom of the first connecting groove.

[0010] Preferably, a sealing strip is provided on the back side of the button panel.

[0011] Preferably, the lock body includes a bolt, a drive motor, and a transmission mechanism, wherein the drive motor drives the bolt to extend or retract through the transmission mechanism; It also includes a control module, which is electrically connected to the lock body, front panel 1, and button panel 3, and is used to control the locking / unlocking of the lock body, process input information and external commands.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model achieves quick assembly and disassembly of the button panel and the front panel through the dual design of the first and second connecting mechanisms. The elastic force of the first spring drives the limiting strip to automatically engage with the insertion strip groove, and the second spring pushes the insertion block to accurately embed into the second connecting groove. The push plate and the third spring, when the handle is removed and the button panel is disassembled, push the button panel upward, and the third spring will also push the push plate upward under the action of elastic force, so as to facilitate the upward removal of the button panel for inspection or repair of the front panel. The operation can be completed without additional tools, which greatly improves maintenance efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the front structure of the button panel of this utility model; Figure 3 For the present utility model Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the rear structure of the button panel of this utility model; Figure 5 For the present utility model Figure 4 Enlarged diagram of point B in the middle.

[0014] The following are the labels in the diagram: 1. Front panel; 2. Rear panel; 3. Button panel; 301. Step; 302. Second connecting groove; 4. Handle; 5. Insert strip; 6. Limiting strip; 7. Connecting post; 8. First spring; 9. Insert block; 10. Second spring; 11. Push plate; 12. Third spring; 13. Sealing strip. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] Example: Please see Figure 1-5 A smart door lock includes a front panel 1, a rear panel 2, and a lock body. The rear panel 2 and the lock body adopt existing technologies, which will not be described in detail here. The front panel 1 and the rear panel 2 are respectively installed on both sides of the lock body. A button panel 3 is provided on the front panel 1. The button panel 3 is movably connected to the front panel 1 through a connecting component; this facilitates the removal of the button panel 3 and the inspection of the internal circuit status of the front panel 1.

[0017] A handle 4 is provided on the front panel 1, and a through hole is provided on the button panel 3. The mounting end of the handle 4 passes through the through hole and is movably connected to the front panel 1.

[0018] The front panel 1 is the operating surface facing outwards, housing an input module, a display module, and a button panel 3. The rear panel 2 is the mounting surface facing inwards, fixedly connected to the front panel 1 via a connecting structure passing through the door. The rear panel 2 houses the lock body and control module. The lock body, used to unlock and lock the door, includes a bolt, a drive motor, and a transmission mechanism. The drive motor drives the bolt to extend or retract via the transmission mechanism. The control module is electrically connected to the lock body, communication module, input module, button panel 3, alarm module, positioning module, and display module, and is used to control the unlocking / locking of the lock body, process input information, and external commands. The communication module is electrically connected to the control module and is used to communicate with external devices wirelessly (Wi-Fi, Bluetooth, ZigBee, 4G, or 5G). The input module, located on the front panel 1, includes a fingerprint recognition unit, a face recognition unit, and an NFC reading unit. The button panel 3, located in front of the input module on the front panel 1, is a physical button or touch-sensitive button structure used to receive user-input password unlocking information. The input module and the keypad 3 are connected by the internal circuit of the control module: the key signals of the keypad 3 are transmitted to the first signal interface of the control module through the flexible circuit board (FPC) or wires, and the biometric signals of the input module are transmitted to the second signal interface of the control module through an independent data bus. The control module integrates and processes the two signals and outputs the unlock / lock command.

[0019] In this application, the connecting component includes a first connecting mechanism and a second connecting mechanism. A step 301 is provided on the front side of the button panel 3, the first connecting mechanism is located at the step 301, and the second connecting mechanism is located between the upper side of the button panel 3 and the front panel 1. The first and second connecting mechanisms facilitate the disassembly and installation of the button panel 3, making maintenance and testing easier.

[0020] In this application, the first connecting mechanism includes a plug strip 5, which is disposed at the end of the button panel 3. A groove is provided on the side of the plug strip 5, and a first connecting groove is provided on the step 301. The plug strip 5 can extend into the first connecting groove. A limiting mechanism is provided in the first connecting groove. The limiting mechanism cooperates with the groove. The position of the plug strip 5 inserted into the first connecting groove is limited by the setting of the limiting mechanism, so as to facilitate the fixing of the plug strip 5.

[0021] In this application, the limiting mechanism includes a limiting strip 6, a connecting post 7 connected to the side of the limiting strip 6, the end of the connecting post 7 being fixedly connected to the side wall of the first connecting groove, one end of the connecting post 7 extending into the limiting strip 6, and the connecting post 7 slidingly engaging with the limiting strip 6, a first spring 8 being sleeved on the outer end of the connecting post 7, one end of the first spring 8 being connected to the inner wall of the connecting groove, and the other end of the first spring 8 being connected to the side wall of the limiting strip 6. Through the setting of the first spring 8, when the insertion strip 5 is inserted into the first connecting groove and contacts the limiting strip 6, the first spring 8 is compressed. When the insertion strip 5 continues to move downward, causing the limiting strip 6 to enter the groove on the side of the insertion strip 5, the restoring force of the first spring 8 will push the limiting strip 6 into the groove and press against the groove, thereby fixing the position of the insertion strip 5.

[0022] In this application, the second connecting mechanism includes a plug 9, with multiple second springs 10 connected to the rear side of the plug 9. A mounting groove is provided on the front panel 1, and the plug 9 slides into the mounting groove. The other end of the second spring 10 is connected to the inner wall of the mounting groove. A second connecting groove 302 is provided on the key panel 3, and the plug 9 is inserted into the second connecting groove 302. When the key panel 3 moves downward, the plug 9 will enter the second connecting groove 302 at the upper end of the key panel 3. The elastic force of the second spring 10 pushes the plug 9 into the second connecting groove 302, so that the plug 9 is engaged with the second connecting groove 302, thereby fixing the upper end of the key panel 3.

[0023] The bottom surface of the insert 9 can be provided with a telescopic post, and the side of the second connecting groove 302 is provided with a connecting hole to cooperate with the telescopic post, so as to realize the snap-fit ​​between the insert 9 and the second connecting groove 302.

[0024] In this application, a push plate 11 is provided at the bottom of the first connecting groove, and multiple third springs 12 are provided on the bottom surface of the push plate 11. The bottom end of the third springs 12 is connected to the bottom of the first connecting groove. When the groove on the side of the plug strip 5 contacts the limiting strip 6, the third springs 12 are in a compressed state. After the button panel 3 is installed, the handle 4 is passed through the through hole and connected to the front panel 1. The handle 4 can also limit the vertical position of the button panel 3. The push plate 11 and the third springs 12 are designed so that when the handle 4 is removed and the button panel 3 is removed, the button panel 3 is pushed upward, and the third springs 12 will also push the push plate 11 upward under the action of elasticity, thereby facilitating the upward removal of the button panel 3 for inspection or maintenance of the front panel 1.

[0025] In this application, a sealing strip 13 is provided on the rear side of the button panel 3, and a groove adapted to the sealing strip 13 is also provided on the front side of the front panel 1 to achieve a sealed connection between the button panel 3 and the front panel 1.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A smart door lock, comprising a front panel (1), a rear panel (2), and a lock body, wherein the front panel (1) and the rear panel (2) are respectively installed on both sides of the lock body, characterized in that: A button panel (3) is provided on the front panel (1), and the button panel (3) is movably connected to the front panel (1) through a connecting component; A handle (4) is provided on the front panel (1), and a through hole is provided on the button panel (3). The mounting end of the handle (4) passes through the through hole and is movably connected to the front panel (1). The connecting component includes a first connecting mechanism and a second connecting mechanism. A step (301) is provided on the front side of the button panel (3). The first connecting mechanism is located at the step (301), and the second connecting mechanism is located between the upper side of the button panel (3) and the front panel (1).

2. The smart door lock according to claim 1, characterized in that: The first connecting mechanism includes a plug strip (5), which is disposed at the end of the button panel (3). A groove is provided on the side of the plug strip (5), and a first connecting groove is provided on the step (301). The plug strip (5) can extend into the first connecting groove. A limiting mechanism is provided in the first connecting groove, and the limiting mechanism cooperates with the groove.

3. The smart door lock according to claim 2, characterized in that: The limiting mechanism includes a limiting strip (6), a connecting post (7) is connected to the side of the limiting strip (6), one end of the connecting post (7) extends into the limiting strip (6), and the connecting post (7) and the limiting strip (6) are slidably engaged. A first spring (8) is sleeved on one end of the outer side of the connecting post (7), one end of the first spring (8) is connected to the inner wall of the connecting groove, and the other end of the first spring (8) is connected to the side wall of the limiting strip (6).

4. The smart door lock according to claim 1, characterized in that: The second connecting mechanism includes a plug (9), a plurality of second springs (10) are connected to the rear side of the plug (9), an installation groove is provided on the front panel (1), the plug (9) slides in the installation groove, the other end of the second spring (10) is connected to the inner wall of the installation groove, a second connecting groove (302) is provided on the button panel (3), and the plug (9) is inserted into the second connecting groove (302).

5. A smart door lock according to claim 2, characterized in that: A push plate (11) is provided at the bottom of the first connecting groove, and a plurality of third springs (12) are provided on the bottom surface of the push plate (11), with the bottom end of the third springs (12) connected to the bottom of the first connecting groove.

6. A smart door lock according to claim 1, characterized in that: A sealing strip (13) is provided on the rear side of the button panel (3).

7. A smart door lock according to claim 1, characterized in that: The lock body includes a bolt, a drive motor, and a transmission mechanism. The drive motor drives the bolt to extend or retract through the transmission mechanism. It also includes a control module, which is electrically connected to the lock body, the front panel (1), and the button panel (3), and is used to control the locking / unlocking of the lock body, process input information and external commands.