Intelligent door lock

By introducing a sliding anti-collision plate and an acceleration sensor drive system into the smart lock, the problem of front panel damage caused by collisions between the smart lock and the wall has been solved, resulting in a longer service life and higher protection capabilities.

CN223964299UActive Publication Date: 2026-03-03DESSMANN CHINA MACHINERY & ELECTRONICS +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-16
Publication Date
2026-03-03

AI Technical Summary

Technical Problem

Smart door locks are prone to collisions with walls during use, which can damage the front panel and affect normal use.

Method used

A smart door lock has been designed, which includes a sliding anti-collision plate. The anti-collision plate is controlled by an accelerometer and a drive unit to slide within the front panel assembly. When needed, the anti-collision plate pops out to resist wall impacts and prevent damage to the front panel.

Benefits of technology

It effectively protects the front panel from damage, extends the service life of the smart lock, and improves the lock's protective function through the automatic adjustment of the anti-collision plate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of intelligent door locks, and discloses an intelligent door lock, which comprises a front panel assembly arranged on the outer surface of a door body and provided with a first concave part; the anti-collision plate is arranged in the first concave part, the anti-collision plate is in sliding connection with the front panel assembly, and the anti-collision plate can slide towards or away from the front panel assembly, so that the anti-collision plate retracts into the first concave part or extends out of the first concave part. When needed, the anti-collision plate is ejected out of the front panel assembly, so that the anti-collision plate is in contact with a wall body, the collision with the wall body is resisted, the front panel assembly is prevented from being damaged due to collision, and the service life of the intelligent door lock is prolonged.
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Description

Technical Field

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

[0002] Smart locks are a product of combining traditional locks, electronic information technology, biometric technology, and the Internet of Things (IoT). They feature built-in embedded control modules and intelligent monitoring systems, significantly improving the efficiency of opening and closing doors, while also enhancing security alarms. Generally, smart locks include a front panel, which is installed on the outside of the door.

[0003] Currently, smart door locks typically have a peephole camera, glass, or plastic panel on the front panel. However, during use, door locks are prone to impacts with walls, which can damage the front panel and affect the normal operation of the lock. Utility Model Content

[0004] This utility model provides a smart door lock to solve or improve the problem in related technologies where smart door locks are prone to collisions with walls during use, resulting in damage to the front panel and affecting the normal use of the door lock.

[0005] This utility model provides an intelligent door lock, including:

[0006] A front panel assembly is disposed on the outer surface of the door body, and the front panel assembly is provided with a first recessed portion;

[0007] A crash barrier is disposed within the first recess. The crash barrier is slidably connected to the front panel assembly, and the crash barrier can slide toward or away from the front panel assembly to retract into the first recess or extend out of the first recess.

[0008] In one alternative implementation, it further includes:

[0009] The first limiting rod is slidably connected to the front panel assembly. The anti-collision plate is provided with a first snap-fit ​​portion that abuts against the first limiting rod. The first limiting rod can slide toward or away from the anti-collision plate so that the first limiting rod abuts against or separates from the first snap-fit ​​portion. The first limiting rod is used to limit and fix the anti-collision plate.

[0010] A first driving member is disposed within the front panel assembly. The first driving member is throttle-connected to the first limiting rod. The first driving member is used to drive the first limiting rod to slide toward or away from the anti-collision plate.

[0011] In one alternative implementation, it further includes:

[0012] A first acceleration sensor is disposed within the front panel assembly, and the first acceleration sensor is used to detect a first acceleration of the door body;

[0013] The first control module is electrically connected to both the first acceleration sensor and the first drive component. The first control module is used to control the first drive component according to the first acceleration to drive the first limit rod to slide toward or away from the anti-collision plate.

[0014] In one alternative implementation, it further includes:

[0015] A first elastic element has one end abutting against the anti-collision plate and the other end abutting against the front panel assembly. The first elastic element is used to give the anti-collision plate a tendency to move away from the front panel assembly.

[0016] In one optional embodiment, the first latching part is slidably connected to the anti-collision plate, and the first latching part can slide toward or away from the first limiting rod.

[0017] The smart lock also includes:

[0018] The second elastic member has one end fixedly disposed and the other end abutting against the first locking part. The second elastic member is used to make the first locking part tend to move toward the first limiting rod.

[0019] In one alternative implementation, it further includes:

[0020] The rear panel assembly is located on the inner surface of the door.

[0021] A stop bar is slidably disposed on the side of the rear panel assembly facing the door frame. The stop bar can extend outside the rear panel assembly and abut against the door body and the door frame, or retract into the rear panel assembly.

[0022] In one alternative implementation, it further includes:

[0023] The second limiting rod is slidably disposed within the rear panel assembly. The stop rod is provided with a second engaging portion that abuts against the second limiting rod. The second limiting rod can slide toward or away from the stop rod so that the second limiting rod abuts against or separates from the second engaging portion. The second limiting rod is used to limit and fix the stop rod.

[0024] The second driving member is disposed within the rear panel assembly. The second driving member is throttle-connected to the second limiting rod. The second driving member is used to drive the second limiting rod to slide toward or away from the stop rod.

[0025] In one alternative implementation, it further includes:

[0026] A second acceleration sensor is disposed within the rear panel assembly, and the second acceleration sensor is used to detect a second acceleration of the door body;

[0027] The second control module is electrically connected to both the second acceleration sensor and the second drive component. The second control module is used to control the second drive component according to the second acceleration, so as to drive the second limit rod to slide toward or away from the stop rod.

[0028] In one alternative implementation, it further includes:

[0029] The third elastic element has one end fixedly installed and the other end abutting against the stop bar. The third elastic element is used to make the stop bar tend to move towards the door frame.

[0030] In one optional embodiment, the second latching portion is slidably connected to the stop bar, and the second latching portion is slidable toward or away from the second limiting bar;

[0031] The smart lock also includes:

[0032] The fourth elastic element has one end fixedly disposed and the other end abutting against the second locking part. The fourth elastic element is used to make the second locking part tend to move toward the second limiting rod.

[0033] The smart door lock provided by this utility model can eject a bumper plate to the outside of the front panel assembly when needed, so that the bumper plate can contact the wall to resist the impact with the wall, avoid damage to the front panel assembly due to collision, and extend the service life of the smart door lock. Attached Figure Description

[0034] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0035] Figure 1 This is a structural schematic diagram of the smart door lock in the embedded state according to an embodiment of the present utility model;

[0036] Figure 2 This is a structural diagram of the smart door lock in the pop-out state according to an embodiment of the present utility model.

[0037] Figure 3This is a partial schematic diagram of the engagement point between the anti-collision plate and the first limiting rod in an embodiment of the present utility model;

[0038] Figure 4 This is a structural schematic diagram of the smart door lock in the embedded state according to an embodiment of the present utility model.

[0039] Figure 5 This is a structural diagram of the smart door lock in the pop-out state according to an embodiment of the present utility model.

[0040] Figure 6 This is a partial schematic diagram of the engagement point between the stop bar and the second limiting bar in an embodiment of this utility model;

[0041] Figure 7 This is a functional block diagram of the smart door lock according to an embodiment of the present utility model.

[0042] Explanation of reference numerals in the attached figures:

[0043] 1. Front panel assembly; 101. First recessed portion; 2. Anti-collision plate; 201. First snap-fit ​​portion; 2011. First inclined guide portion; 202. First mounting bracket; 3. First limiting rod; 4. First driving member; 5. First elastic member; 6. Second elastic member; 7. Rear panel assembly; 8. Stop bar; 801. Second snap-fit ​​portion; 8011. Second inclined guide portion; 802. Second mounting bracket; 9. Second limiting rod; 10. Second driving member; 11. Third elastic member; 12. Fourth elastic member. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0045] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0046] In the description of this utility model, "a plurality of" means two or more. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0047] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0048] The following is combined with Figures 1 to 7 This describes an embodiment of the smart door lock of the present invention.

[0049] According to an embodiment of this utility model, a smart door lock is provided, suitable for installation on a door. Specifically, as... Figure 1 As shown, the smart door lock includes a front panel assembly 1 and a bumper plate 2. The front panel assembly 1 is disposed on the outer surface of the door, as... Figure 2 As shown, the front panel assembly 1 has a first recess 101, and the anti-collision plate 2 is disposed within the first recess 101. The anti-collision plate 2 can be thickened to ensure sufficient impact resistance. Simultaneously, the anti-collision plate 2 is slidably connected to the front panel assembly 1, and the anti-collision plate 2 can slide towards or away from the front panel assembly 1, i.e., along... Figure 2 The movement is indicated by the middle arrow, so that the anti-collision plate 2 retracts into the first recess 101 or extends out of the first recess 101.

[0050] In other words, such as Figure 2 As shown, the bumper 2 can slide away from the front panel assembly 1, thereby extending beyond the first recess 101, i.e., protruding from the outside of the front panel assembly 1. In this way, if it collides with the wall, the bumper 2 will first contact the wall, thereby protecting the front panel assembly 1 from damage.

[0051] like Figure 1 As shown, the bumper 2 can slide towards the front panel assembly 1, thereby retracting into the first recess 101 without occupying external space. Preferably, the bumper 2 and the front panel assembly 1 are flush, making the entire front panel assembly 1 neater and more aesthetically pleasing.

[0052] With this configuration, when needed, the anti-collision plate 2 can be ejected to the outside of the front panel assembly 1, allowing it to contact the wall and thus resist impacts from the wall, preventing damage to the front panel assembly 1 and extending the service life of the smart lock. In its initial state, the anti-collision plate 2 is embedded in the first recess 101, not occupying external space and ensuring an overall aesthetically pleasing and clean appearance.

[0053] In some embodiments of this utility model, the smart door lock further includes a first limiting rod 3 and a first driving member 4. For example... Figure 3 As shown, the first limiting rod 3 is used to limit and fix the anti-collision plate 2, and the first limiting rod 3 is slidably connected to the front panel assembly 1. The anti-collision plate 2 is provided with a first engaging part 201 that abuts against the first limiting rod 3. The first limiting rod 3 can slide toward or away from the anti-collision plate 2, that is, along... Figure 3 The first limiting rod 3 moves up and down in the direction indicated by the middle arrow so that it abuts against or separates from the first locking part 201. The first driving member 4 is disposed in the front panel assembly 1 and is convexly connected to the first limiting rod 3. The first driving member 4 is used to drive the first limiting rod 3 to slide toward or away from the anti-collision plate 2.

[0054] Specifically, such as Figure 3 As shown, the anti-collision plate 2 is provided with a first mounting bracket 202, and the first snap-fit ​​part 201 is slidably disposed on the first mounting bracket 202. The first driving component 4 is a first motor, which is used to drive the first limiting rod 3 to move. The output shaft of the first motor is connected to the first limiting rod 3 via a transmission connection. For example, the output shaft of the first motor is provided with a gear, and the first limiting rod 3 is provided with a meshing rack part. The first motor drives the gear to rotate, and the gear drives the rack part to move linearly, thereby causing the first limiting rod 3 to slide towards or away from the anti-collision plate 2. It should be noted that the transmission connection between the output shaft of the first motor and the first limiting rod 3 includes, but is not limited to, a gear and rack mechanism. A lead screw and nut mechanism or a worm gear mechanism can also be used, with adaptive adjustments to drive the first limiting rod 3 to perform reciprocating linear motion.

[0055] In this way, in the initial state, the bumper 2 retracts into the first recess 101, and the first limiting rod 3 abuts against the first locking part 201, thereby limiting the bumper 2 and reliably fixing it in the first recess 101. If the bumper 2 needs to extend, such as Figure 3 As shown, the first driving member 4 drives the first limiting rod 3 to slide away from the anti-collision plate 2, so that the first limiting rod 3 separates from the first locking part 201, releasing the limitation on the anti-collision plate 2. At this time, the anti-collision plate 2 can extend smoothly to protect the front panel assembly 1 from impact. After the anti-collision plate 2 extends, the first driving member 4 drives the first limiting rod 3 to return to its initial position.

[0056] Furthermore, in some embodiments of this utility model, the smart door lock further includes a first acceleration sensor and a first control module. The first acceleration sensor is disposed within the front panel assembly 1 and is used to detect a first acceleration of the door body. The first control module is electrically connected to both the first acceleration sensor and the first drive member 4, and is used to control the first drive member 4 according to the first acceleration to drive the first limit rod 3 to slide toward or away from the anti-collision plate 2.

[0057] It should be noted that the first control module's control of the first drive component 4 based on the first acceleration is a conventional technique in related technologies and does not involve any improvement to the method. Specifically, the first control module is integrated into the main control module of the smart door lock. After the door is opened, when the door moves rapidly outward toward the wall, the first acceleration sensor acquires the door's first acceleration in real time. If the first acceleration is greater than or equal to a first preset value, the first control module controls the first drive component 4 to move the first limit rod 3 away from the anti-collision plate 2, releasing the limit on the anti-collision plate 2. At this time, the anti-collision plate 2 can extend outside the front panel assembly 1 to resist the upcoming impact. It should be noted that the magnitude of the first preset value can be specifically determined according to actual design requirements. It is understood that the door's acceleration will not exceed the first preset value under normal opening and closing conditions.

[0058] With this design, when the door collides with the wall outward, the anti-collision plate 2 can be released in time to protect the front panel assembly 1 from damage, thus enabling the smart door lock to achieve the anti-collision function more sensitively and conveniently.

[0059] Preferably, in some embodiments of this utility model, such as Figure 3 As shown, the smart door lock also includes a first elastic element 5, which can be a spring. One end of the first elastic element 5 abuts against the anti-collision plate 2, and the other end abuts against the front panel assembly 1. The first elastic element 5 is used to make the anti-collision plate 2 tend to move away from the front panel assembly 1.

[0060] Thus, in the initial state, the bumper 2 is confined within the first recess 101. At this time, the bumper 2 compresses the first elastic member 5, causing the first elastic member 5 to deform. When the confinement of the bumper 2 is released, the first elastic member 5 returns to its original deformation, causing the bumper 2 to pop out of the front panel assembly 1, thereby providing protection for the front panel assembly 1. Preferably, as follows... Figure 3 As shown, there can be multiple first elastic elements 5, and each first elastic element 5 is evenly spaced from top to bottom, so that the anti-collision plate 2 can be ejected more smoothly and reliably to the outside of the front panel assembly 1.

[0061] Furthermore, in some embodiments of this utility model, the first engaging portion 201 is slidably connected to the anti-collision plate 2, and the first engaging portion 201 can slide toward or away from the first limiting rod 3, that is, along... Figure 3 The movement is up and down in the direction indicated by the middle arrow. The smart door lock also includes a second elastic element 6, which can be a spring. One end of the second elastic element 6 is fixedly disposed, for example, fixedly connected to the first mounting bracket 202, and the other end of the second elastic element 6 abuts against the first latching part 201. The second elastic element 6 is used to give the first latching part 201 a tendency to move toward the first limiting rod 3.

[0062] Specifically, such as Figure 3 As shown, when the anti-collision plate 2 is located within the first recess 101, the second elastic member 6 can reliably cause the first locking part 201 to abut against the first limiting rod 3. If the door is about to collide with the wall due to external force, the first limiting rod 3 disengages from the first locking part 201, and the anti-collision plate 2 pops out to resist the impending collision. After the anti-collision plate 2 pops out, the first limiting rod 3 returns to its original position.

[0063] When it is necessary to press the bumper 2 back into the first recess 101, such as Figure 3 As shown, during the pressing process, the first limiting rod 3 pushes against the first locking part 201, overcoming the elastic force of the second elastic element 6, causing the first locking part 201 to move downwards until the anti-collision plate 2 is pressed into place. Then, the first locking part 201 again abuts against the first limiting rod 3, re-limiting the anti-collision plate 2, awaiting the next anti-collision protection. This design results in a simple overall structure, convenient operation, and easy use. Preferably, as shown... Figure 3 As shown, the first locking part 201 is provided with a first inclined guide part 2011 so that the first limiting rod 3 can smoothly push against the first locking part 201.

[0064] In some embodiments of this utility model, the smart door lock further includes a rear panel assembly 7 and a stop bar 8. Specifically, the rear panel assembly 7 is disposed on the inner surface of the door body. Figure 4 As shown, the stop bar 8 is slidably disposed on the side of the rear panel assembly 7 facing the door frame. Specifically, the side wall of the rear panel assembly 7 is provided with a groove for the stop bar 8 to pass through, and the stop bar 8 is slidably disposed in the groove. The stop bar 8 can extend outside the rear panel assembly 7 and abut against the door body and the door frame, or the stop bar 8 can retract into the rear panel assembly 7. Optionally, the stop bar 8 is made of elastic materials such as silicone or rubber to prevent damage to the door frame upon collision, and at the same time, it must have a certain structural strength to withstand the impact force.

[0065] In other words, such as Figure 5As shown, the stop lever 8 can extend beyond the rear panel assembly 7, thereby blocking the door between the door body and the door frame. In this way, when the sliding door is closed rapidly due to external forces such as strong winds, the extended stop lever 8 can prevent the user from being unable to retract their fingers in time, thus avoiding accidents that could result in fingers being pinched and injuring the user, ensuring the user's safety.

[0066] And, as Figure 4 As shown, the stop lever 8 can retract into the rear panel assembly 7, thus not affecting the closing of the door and ensuring the normal use of the smart door lock. This design, by incorporating a retractable stop lever 8 into the rear panel assembly 7, effectively prevents accidental hand pinching and reliably provides an anti-pinch function.

[0067] Optionally, in some embodiments of this utility model, the smart door lock further includes a second limiting rod 9 and a second driving member 10. For example... Figure 6 As shown, the second limiting rod 9 is used to limit and fix the stop rod 8, and the second limiting rod 9 is slidably disposed within the rear panel assembly 7. The stop rod 8 is provided with a second engaging portion 801 that abuts against the second limiting rod 9, and the second limiting rod 9 can slide toward or away from the stop rod 8, that is, along... Figure 6 The second limit rod 9 moves up and down in the direction indicated by the middle arrow to abut or separate from the second locking part 801. The second driving member 10 is disposed in the rear panel assembly 7 and is convexly connected to the second limit rod 9. The second driving member 10 is used to drive the second limit rod 9 to slide toward or away from the stop rod 8.

[0068] Specifically, such as Figure 6 As shown, the stop lever 8 is provided with a second mounting bracket 802, and the second snap-fit ​​part 801 is slidably disposed on the second mounting bracket 802. The second driving component 10 is a second motor, which is used to drive the second limiting lever 9 to move. The output shaft of the second motor is connected to the second limiting lever 9 via a transmission connection. For example, the output shaft of the second motor is provided with a gear, and the second limiting lever 9 is provided with a meshing rack part. The second motor drives the gear to rotate, and the gear drives the rack part to move linearly, thereby causing the second limiting lever 9 to slide towards or away from the stop lever 8. It should be noted that the transmission connection between the output shaft of the second motor and the second limiting lever 9 includes, but is not limited to, a gear and rack mechanism. A lead screw and nut mechanism or a worm gear mechanism can also be used, with adaptive adjustments to drive the second limiting lever 9 to perform reciprocating linear motion.

[0069] In this initial state, the stop lever 8 retracts into the rear panel assembly 7, and the second limiting rod 9 abuts against the second locking part 801, thereby limiting the stop lever 8 and reliably fixing it in the rear panel assembly 7 so as not to affect the user's opening and closing of the door. If the stop lever 8 needs to extend, such as Figure 6As shown, the second driving member 10 drives the second limiting rod 9 to slide away from the stop rod 8, so that the second limiting rod 9 separates from the second locking part 801, releasing the limitation on the stop rod 8. At this time, the stop rod 8 can be extended smoothly to avoid the user accidentally pinching their finger. After the stop rod 8 is extended, the second driving member 10 drives the second limiting rod 9 to return to its initial position.

[0070] Furthermore, in some embodiments of this utility model, the smart door lock further includes a second acceleration sensor and a second control module. The second acceleration sensor is disposed within the rear panel assembly 7 and is used to detect a second acceleration of the door body. The second control module is electrically connected to both the second acceleration sensor and the second drive member 10, and is used to control the second drive member 10 according to the second acceleration to drive the second limit rod 9 to slide toward or away from the stop rod 8.

[0071] It should be noted that the second control module's control of the second drive component 10 based on the second acceleration is a conventional technique in related technologies and does not involve any improvement to the method. Specifically, the second control module is integrated into the main control module of the smart door lock. After the door is opened, if a strong wind causes the sliding door to close unexpectedly and quickly, the second acceleration sensor acquires the second acceleration of the door body in real time. If the second acceleration is greater than or equal to the second preset value, the second control module controls the second drive component 10 to move the second limit rod 9, releasing the limit on the stop rod 8. At this time, the stop rod 8 can extend outside the rear panel assembly 7 and block between the door body and the door frame, thereby preventing the user from accidentally getting their fingers pinched. The magnitude of the second preset value can be specifically determined according to actual design requirements. It is understood that the acceleration under normal door opening and closing conditions will not exceed the second preset value.

[0072] With this design, when the door closes unexpectedly and quickly, the stop bar 8 can be released in time to block between the door and the door frame, preventing the user's fingers from being pinched and ensuring the user's personal safety. This makes the smart door lock more sensitive and faster in implementing the anti-pinch function, and more convenient to use.

[0073] Specifically, in this embodiment, such as Figure 7 As shown, the first control module and the second control module can be integrated into the main control module and electrically connected to the first acceleration sensor and the second acceleration sensor respectively via wires. The smart door lock also has a power module, which can use a lithium battery to power the various electronic components. Based on the measured first acceleration, the first motor can be controlled to drive the first limit rod 3 to move, so as to achieve the anti-collision function; based on the measured second acceleration, the second motor can be controlled to drive the second limit rod 9 to move, so as to achieve the anti-pinch function.

[0074] Preferably, in some embodiments of this utility model, the smart door lock further includes a third elastic element 11, which may be a spring. One end of the third elastic element 11 is fixedly disposed, and the other end abuts against the stop bar 8. The third elastic element 11 is used to give the stop bar 8 a tendency to move toward the door frame.

[0075] In this way, in the initial state, the stop lever 8 is confined within the rear panel assembly 7. At this time, the stop lever 8 presses against the third elastic element 11, causing the third elastic element 11 to deform. When the confinement of the stop lever 8 is released, the third elastic element 11 returns to its original deformation, causing the stop lever 8 to pop out of the rear panel assembly 7 and block between the door and the door frame to prevent the user from getting their fingers pinched.

[0076] Furthermore, in some embodiments of this utility model, the second engaging portion 801 is slidably connected to the stop bar 8, and the second engaging portion 801 can slide toward or away from the second limiting bar 9, that is, along... Figure 6 The movement is up and down in the direction indicated by the middle arrow. The smart door lock also includes a fourth elastic element 12, which can be a spring. One end of the fourth elastic element 12 is fixedly disposed, for example, fixedly connected to the second mounting bracket 802, and the other end of the fourth elastic element 12 abuts against the second latching part 801. The fourth elastic element 12 is used to give the second latching part 801 a tendency to move toward the second limiting rod 9.

[0077] Specifically, such as Figure 6 As shown, when the stop lever 8 is located in the rear panel assembly 7, the fourth elastic element 12 can reliably cause the second locking part 801 to abut against the second limiting lever 9. If the door closes rapidly due to an accident, the second limiting lever 9 disengages from the second locking part 801, the stop lever 8 pops out, and blocks between the door and the door frame. After the stop lever 8 pops out, the second limiting lever 9 returns to its original position.

[0078] When it is necessary to press the stop lever 8 back into the rear panel assembly 7, such as Figure 6 As shown, during the pressing process, the second limiting rod 9 pushes against the second locking part 801, overcoming the elastic force of the fourth elastic element 12, causing the second locking part 801 to move downwards until the stop rod 8 is pressed into place. Then, the second locking part 801 again abuts against the second limiting rod 9, re-limiting the stop rod 8, awaiting the next anti-pinch protection. This design results in a simple overall structure, ease of implementation, and convenient operation. Preferably, as shown... Figure 6 As shown, the second locking part 801 is provided with a second inclined guide part 8011 so that the second limiting rod 9 can smoothly push against the second locking part 801.

[0079] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. An intelligent door lock, characterized by, The application relates to a smart door lock, which comprises the following: a front panel assembly (1) arranged on the outer surface of a door body, wherein the front panel assembly (1) is provided with a first recess (101); a collision plate (2) arranged in the first recess (101), wherein the collision plate (2) is in sliding connection with the front panel assembly (1), and the collision plate (2) can slide towards or away from the front panel assembly (1) so as to be retracted into the first recess (101) or extended out of the first recess (101).

2. The smart door lock of claim 1, wherein, Further comprising: a first limiting rod (3) in sliding connection with the front panel assembly (1), wherein the collision plate (2) is provided with a first clamping portion (201) in abutment with the first limiting rod (3), the first limiting rod (3) can slide towards or away from the collision plate (2) so as to abut or separate from the first clamping portion (201), and the first limiting rod (3) is used for limiting and fixing the collision plate (2); a first driving member (4) arranged in the front panel assembly (1), wherein the first driving member (4) is in transmission connection with the first limiting rod (3), and the first driving member (4) is used for driving the first limiting rod (3) to slide towards or away from the collision plate (2).

3. The smart door lock of claim 2, wherein, Further comprising: a first acceleration sensor arranged in the front panel assembly (1), wherein the first acceleration sensor is used for detecting the first acceleration of the door body; a first control module electrically connected with the first acceleration sensor and the first driving member (4), wherein the first control module is used for controlling the first driving member (4) according to the first acceleration so as to drive the first limiting rod (3) to slide towards or away from the collision plate (2).

4. The smart door lock of claim 2, wherein, Further comprising: a first elastic member (5) having one end in abutment with the collision plate (2) and the other end in abutment with the front panel assembly (1), wherein the first elastic member (5) is used for enabling the collision plate (2) to have a tendency to move in a direction away from the front panel assembly (1).

5. The smart door lock of claim 2, wherein, The first clamping portion (201) is in sliding connection with the collision plate (2), and the first clamping portion (201) can slide towards or away from the first limiting rod (3); The smart door lock further comprises: a second elastic member (6) having one end fixedly arranged and the other end in abutment with the first clamping portion (201), wherein the second elastic member (6) is used for enabling the first clamping portion (201) to have a tendency to move in a direction towards the first limiting rod (3).

6. The smart door lock of any one of claims 1 to 5, wherein, Further comprising: a rear panel assembly (7) arranged on the inner surface of the door body; a blocking rod (8) in sliding arrangement on the side of the rear panel assembly (7) facing the door frame, wherein the blocking rod (8) can be extended out of the rear panel assembly (7) and abut between the door body and the door frame, or be retracted into the rear panel assembly (7).

7. The smart door lock of claim 6, wherein, Further comprising: A second limiting rod (9) is slidingly arranged in the rear panel assembly (7), the stop rod (8) is provided with a second clamping portion (801) abutting against the second limiting rod (9), the second limiting rod (9) can slide towards or away from the stop rod (8) to abut or separate from the second clamping portion (801), and the second limiting rod (9) is used for limiting and fixing the stop rod (8); A second driving member (10) is arranged in the rear panel assembly (7), the second driving member (10) is in transmission connection with the second limiting rod (9), and the second driving member (10) is used for driving the second limiting rod (9) to slide towards or away from the stop rod (8).

8. The smart door lock of claim 7, wherein, Further comprising: A second acceleration sensor is arranged in the rear panel assembly (7), and the second acceleration sensor is used for detecting the second acceleration of the door body; A second control module is electrically connected with the second acceleration sensor and the second driving member (10), and the second control module is used for controlling the second driving member (10) according to the second acceleration to drive the second limiting rod (9) to slide towards or away from the stop rod (8).

9. The smart door lock of claim 7, wherein, Further comprising: A third elastic member (11) is fixedly arranged at one end and abuts against the stop rod (8) at the other end, and the third elastic member (11) is used for making the stop rod (8) have a tendency to move towards the door frame.

10. The smart door lock of claim 7, wherein, The second clamping portion (801) is in sliding connection with the stop rod (8), and the second clamping portion (801) can slide towards or away from the second limiting rod (9); The intelligent door lock further comprises: A fourth elastic member (12) is fixedly arranged at one end and abuts against the second clamping portion (801) at the other end, and the fourth elastic member (12) is used for making the second clamping portion (801) have a tendency to move towards the second limiting rod (9).