A remote-controlled smart lock

By designing a remote-controlled smart lock, which utilizes a cam and a blocking alloy plate to shield the bolt, combined with a pressure-sensing chip and an alarm system, the security risks and accidental touch issues of smart locks are resolved, achieving safe and reliable remote control and timely alarms.

CN224943578UActive Publication Date: 2026-11-06SHANGHAI KEJI NETWORK TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202522674952.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-17
Publication Date
2026-11-06
Estimated Expiration
2035-12-17

AI Technical Summary

Technical Problem

Existing smart locks have security risks due to gaps between the door frame and the door body, and the remote unlocking function is easily affected by accidental touches, failing to effectively prevent lock picking and failing to trigger alarms.

Method used

A remote-controlled smart lock was designed. The lock tongue is blocked by a cam and a blocking alloy plate. It is equipped with a pressure sensing chip and an alarm system to ensure that the alarm is triggered in time when the lock is picked, thus preventing accidental activation of the remote control.

Benefits of technology

It enhances the security of smart locks, prevents lock picking, ensures timely alarms in case of lock picking, prevents property loss, and avoids accidental remote control activation that may disturb homeowners.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a remote-controlled smart lock, including a door body and a lock cylinder shell fixedly installed inside the door body. The lock cylinder shell is located inside the door body. A U-shaped pull plate is slidably connected to the front side of the inner side of the lock cylinder shell. A blocking alloy plate is fixedly connected to the right end of the U-shaped pull plate. The blocking alloy plate is slidably connected to the lock cylinder shell. A driven roller is rotatably connected to the rear side of the left end of the U-shaped pull plate. A cam is rotatably connected to the right side of the driven roller. This utility model allows the driven roller to move by rotating the cam, thereby enabling the U-shaped pull plate to move the blocking alloy plate. When the cam is not wirelessly driven to rotate, the blocking alloy plate can move with the safety bolt. This allows the smart lock to block multiple bolts inside during use, preventing lock picking and improving the security of the smart lock.
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Description

Technical Field

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

[0002] With the rapid development of smart homes, smart locks, as the core equipment for home security, are gradually replacing traditional mechanical locks, and their functions are also developing from simple local unlocking to diversified directions such as remote control and status monitoring.

[0003] While existing smart locks employ various latch structures for locking, gaps still exist between the door frame and the door, posing a risk of prying. Furthermore, the inability to shield the latches presents certain security vulnerabilities. Although existing smart locks offer remote unlocking capabilities, they are susceptible to accidental activation, potentially disturbing homeowners. Moreover, attempts to pry the lock without triggering the alarm system fail to activate it, jeopardizing the safety of property. Therefore, a remote-controlled smart lock is needed to address these issues. Utility Model Content

[0004] The purpose of this invention is to provide a remote-controlled smart lock to solve the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a remote-controlled smart lock, comprising a door body and a lock cylinder housing fixedly installed inside the door body. The lock cylinder housing is provided inside the door body. A U-shaped pull plate is slidably connected to the front side of the inside of the lock cylinder housing. A shielding alloy plate is fixedly connected to the right end of the U-shaped pull plate. The shielding alloy plate is slidably connected to the lock cylinder housing. A driven roller is rotatably connected to the rear side of the left end of the U-shaped pull plate. A cam is rotatably connected to the right side of the driven roller. A pressure sensing chip is fixedly connected inside the shielding alloy plate, and an outer lock shell is fixedly connected to the front end of the door. A password button is provided on the upper side of the front surface of the outer lock shell, and a buzzer alarm is provided on the lower side of the front surface of the outer lock shell.

[0006] Preferably, an inner lock housing is fixedly connected to the rear end of the door, an inner handle is rotatably connected to the lower rear end of the inner lock housing, an indoor display screen is provided at the middle position of the rear end face of the inner lock housing, and a battery housing is fixedly connected to the upper end of the inner lock housing.

[0007] Preferably, a lock cylinder mounting plate is fixedly connected to the right end of the lock cylinder housing, and locking bolts are provided between the upper and lower ends of the lock cylinder mounting plate and the door body. The lock cylinder body is provided inside the lock cylinder housing, and a movable bolt and a safety bolt are respectively provided on the right end of the lock cylinder body. Both the movable bolt and the safety bolt are slidably connected to the lock cylinder mounting plate.

[0008] Preferably, a self-locking motor is fixedly connected to the inner left side of the lock cylinder housing, and the output shaft of the self-locking motor is fixedly connected to the cam.

[0009] Preferably, a connecting plate is fixedly connected to the rear left end of the U-shaped pull plate, and an elastic telescopic rod is fixedly connected to the right end of the connecting plate. The outer tube of the elastic telescopic rod is fixedly connected to the lock cylinder housing, and a compression spring is sleeved on the inner surface of the elastic telescopic rod.

[0010] Preferably, an alarm controller is fixedly connected to the lower inner end of the outer lock shell, the alarm controller is electrically connected to the buzzer alarm, and an infrared sensor is provided above the buzzer alarm, the infrared sensor is electrically connected to the alarm controller.

[0011] Preferably, a function button is provided at the middle position of the front end face of the outer lock shell, an outdoor display screen is fixedly connected to the upper end of the front end face of the outer lock shell, an intelligent controller is fixedly connected to the upper end of the inner side of the outer lock shell, and an outer handle is rotatably connected to the lower side of the front end face of the outer lock shell.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. This remote-controlled smart lock uses the rotation of a cam to move a driven roller, which in turn moves a U-shaped pull plate that drives a blocking alloy plate. When the cam is not wirelessly driven to rotate, the blocking alloy plate moves with the safety bolt, thus blocking multiple bolts inside the smart lock during use, preventing lock picking and improving the security of the smart lock.

[0013] 2. This remote-controlled smart lock not only allows for password unlocking via keypad buttons, but also enables the input of remote control commands. After the command is input, the remote unlocking request is sent to the homeowner's mobile phone, preventing accidental touches on the control panel and thus avoiding disturbance to the homeowner. Furthermore, when someone tries to break the lock, the lock-picking device will first contact the shielding alloy plate, thereby causing pressure on the internal pressure sensing chip and transmitting the information to the alarm controller, which can then promptly issue an alarm to prevent property damage. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the installation structure of this utility model; Figure 2 This is a rear view of the installation structure of this utility model; Figure 3 This is a schematic diagram of the installation structure of the shielding alloy plate and the lock cylinder mounting plate of this utility model; Figure 4 This is a schematic diagram of the internal installation structure of the lock cylinder shell of this utility model; Figure 5Left view of the mounting structure of the U-shaped pull plate, the shielding alloy plate and the cam of this utility model; Figure 6 This is a rear view of the mounting structure of the outer lock shell of this utility model.

[0015] In the diagram: 1. Door body; 2. Lock cylinder outer shell; 3. U-shaped pull plate; 4. Covering alloy plate; 5. Driven roller; 6. Cam; 7. Pressure sensing chip; 8. Outer lock shell; 9. Password keypad; 10. Buzzer alarm; 11. Inner lock shell; 12. Inner handle; 13. Indoor display screen; 14. Battery shell; 15. Lock cylinder mounting plate; 16. Lock cylinder body; 17. Movable bolt; 18. Safety bolt; 19. Self-locking motor; 20. Connecting plate; 21. Elastic telescopic rod; 22. Alarm controller; 23. Infrared sensor; 24. Function button; 25. Outdoor display screen; 26. Intelligent controller; 27. Outer handle. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Example 1 Please refer to Figure 1-6 As shown, this utility model provides a remote control smart lock, including a door body 1 and a lock cylinder shell 2 fixedly installed inside the door body 1. The lock cylinder shell 2 is provided inside the door body 1. A U-shaped pull plate 3 is slidably connected to the front side of the interior of the lock cylinder shell 2. A shielding alloy plate 4 is fixedly connected to the right end of the U-shaped pull plate 3. The shielding alloy plate 4 is slidably connected to the lock cylinder shell 2. A driven roller 5 is rotatably connected to the rear side of the left end of the U-shaped pull plate 3. A cam 6 is rotatably connected to the right side of the driven roller 5. The rotation of the cam 6 can drive the driven roller 5 to move to the left, and the U-shaped pull plate 3 can drive the shielding alloy plate 4 and the safety lock tongue 18 to move to the left. Thus, the door can be opened by rotating the outer handle 27, realizing remote control unlocking. The shielding alloy plate 4 can block the door gap, thereby providing a safety shielding treatment for each lock tongue inside, preventing lock picking equipment from directly contacting the lock tongue. A pressure sensing chip 7 is fixedly connected inside the shielding alloy plate 4. An outer lock shell 8 is fixedly connected to the front end of the door body 1. A password keypad 9 is provided on the upper side of the front surface of the outer lock shell 8, and a buzzer alarm 10 is provided on the lower side of the front surface of the outer lock shell 8. When someone tries to pry the lock without touching the outer lock shell 8, the prying tool will first contact the shielding alloy plate 4, thereby squeezing the pressure sensing chip 7. This pressure information will then be directly transmitted to the alarm controller 22, causing the buzzer alarm 10 to sound an alarm and transmit the alarm information to the homeowner's mobile phone, alerting them to a security alarm. The password keypad 9 can be used not only to enter a password to unlock the door but also to enter a remote unlocking request command. However, if a pedestrian accidentally touches the keypad on the outer lock shell 8, a remote unlocking request will not be issued, thus preventing accidental touches that may disturb the homeowner.

[0018] Specifically, an inner lock housing 11 is fixedly connected to the rear end of the door body 1, an inner handle 12 is rotatably connected to the lower rear end of the inner lock housing 11, an indoor display screen 13 is provided at the middle position of the rear end face of the inner lock housing 11, and a battery housing 14 is fixedly connected to the upper end of the inner lock housing 11.

[0019] Specifically, a lock cylinder mounting plate 15 is fixedly connected to the right end of the lock cylinder housing 2. Locking bolts are provided between the upper and lower ends of the lock cylinder mounting plate 15 and the door body 1. The lock cylinder housing 2 is equipped with a lock cylinder body 16 inside. The right end of the lock cylinder body 16 is equipped with a movable latch 17 and a safety latch 18. The safety latch 18 is fixedly connected to the shielding alloy plate 4. Both the movable latch 17 and the safety latch 18 are slidably connected to the lock cylinder mounting plate 15. The connection between the safety latch 18 and the shielding alloy plate 4 can shield the door gap when locking the door to protect the internal latch. When unlocking remotely, the shielding alloy plate 4 can drive the safety latch 18 to open, realizing remote unlocking.

[0020] Specifically, a self-locking motor 19 is fixedly connected to the left side of the inner side of the lock cylinder housing 2. The output shaft of the self-locking motor 19 is fixedly connected to the cam 6. The lock is opened by controlling the homeowner's mobile phone. At this time, the self-locking motor 19 can rotate, thereby enabling the cam 6 to be remotely controlled to start.

[0021] Specifically, a connecting plate 20 is fixedly connected to the rear left end of the U-shaped pull plate 3, and an elastic telescopic rod 21 is fixedly connected to the right end of the connecting plate 20. The outer tube of the elastic telescopic rod 21 is fixedly connected to the lock cylinder housing 2, and a compression spring is sleeved on the inner surface of the elastic telescopic rod 21. The elastic telescopic rod 21 can assist in locking the door.

[0022] Specifically, an alarm controller 22 is fixedly connected to the lower part of the inner side of the outer lock shell 8. The alarm controller 22 is electrically connected to the buzzer alarm 10. An infrared sensor 23 is provided above the buzzer alarm 10. The infrared sensor 23 is electrically connected to the alarm controller 22. The external infrared sensor 23 can detect whether there are people lingering outside the door for a long time, and can also activate the alarm controller 22, greatly improving the security warning function and protecting the safety of indoor property.

[0023] Specifically, a function button 24 is provided in the middle of the front face of the outer lock housing 8, an outdoor display screen 25 is fixedly connected to the upper part of the front face of the outer lock housing 8, an intelligent controller 26 is fixedly connected to the upper part of the interior of the outer lock housing 8, and an outer handle 27 is rotatably connected to the lower side of the front face of the outer lock housing 8.

[0024] Working Principle: This utility model is a remote-controlled smart lock. When in use, the shielding alloy plate 4 blocks the door gaps, thus safely shielding the internal lock tongues and preventing lock-picking devices from directly contacting them. When remote unlocking is required, a remote control command is entered via the keypad 9, causing the smart controller 26 to send a remote unlocking request to the homeowner's mobile phone. The homeowner can then control the unlocking via their phone. At this time, the self-locking motor 19 rotates, causing the cam 6 to move the driven roller 5 to the left. This, in turn, causes the U-shaped pull plate 3 to move the shielding alloy plate 4 and the safety lock tongue 18 to the left. The rotation of the outer handle 27 then opens the door, achieving the desired unlocking effect. The door can be remotely unlocked, and the elastic telescopic rod 21 can assist in locking. When a pedestrian accidentally touches the button on the outer lock shell 8, no remote unlocking request will be issued to avoid disturbing the homeowner. If someone tries to pry the lock without touching the outer lock shell 8, the prying tool will first contact the shielding alloy plate 4, thereby squeezing the pressure sensing chip 7. This pressure information will be directly transmitted to the alarm controller 22, causing the buzzer alarm 10 to sound and the alarm information to be sent to the homeowner's mobile phone to alert them to a security problem. The external infrared sensor 23 can also detect whether anyone is loitering outside the door for a long time, which can also activate the alarm controller 22, greatly improving the security warning function and protecting the safety of indoor property.

[0025] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0026] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A remote control intelligent lock, comprising a door body (1) and a lock core shell (2) fixedly installed inside the door body (1), characterized in that: The door body (1) is provided with a lock cylinder shell (2) inside. A U-shaped pull plate (3) is slidably connected to the front side of the lock cylinder shell (2). A shielding alloy plate (4) is fixedly connected to the right end of the U-shaped pull plate (3). The shielding alloy plate (4) is slidably connected to the lock cylinder shell (2). A driven roller (5) is rotatably connected to the rear side of the left end of the U-shaped pull plate (3). A cam (6) is slidably connected to the right side of the driven roller (5). The shielding alloy plate (4) is fixedly connected to a pressure sensing chip (7), the front end of the door (1) is fixedly connected to an outer lock shell (8), the upper side of the front end face of the outer lock shell (8) is provided with a password button (9), and the lower end of the front end face of the outer lock shell (8) is provided with a buzzer alarm (10).

2. The remotely controlled smart lock of claim 1, wherein: The rear end of the door (1) is fixedly connected to an inner lock shell (11), and an inner handle (12) is rotatably connected to the lower rear end of the inner lock shell (11). An indoor display screen (13) is provided at the middle position of the rear end face of the inner lock shell (11), and a battery shell (14) is fixedly connected to the upper end of the inner lock shell (11).

3. The remotely controlled smart lock of claim 1, wherein: A lock cylinder mounting plate (15) is fixedly connected to the right end of the lock cylinder housing (2). Locking bolts are provided between the upper and lower ends of the lock cylinder mounting plate (15) and the door body (1). The lock cylinder housing (2) is provided with a lock cylinder body (16). A movable lock tongue (17) and a safety lock tongue (18) are respectively provided on the right end of the lock cylinder body (16). The safety lock tongue (18) is fixedly connected to the shielding alloy plate (4). The movable lock tongue (17) and the safety lock tongue (18) are both slidably connected to the lock cylinder mounting plate (15).

4. The remotely controlled smart lock of claim 1, wherein: A self-locking motor (19) is fixedly connected to the left side of the inside of the lock cylinder housing (2), and the output shaft of the self-locking motor (19) is fixedly connected to the cam (6).

5. The remotely controlled smart lock of claim 1, wherein: A connecting plate (20) is fixedly connected to the rear left end of the U-shaped pull plate (3), and an elastic telescopic rod (21) is fixedly connected to the right end of the connecting plate (20). The outer tube of the elastic telescopic rod (21) is fixedly connected to the lock cylinder shell (2), and a compression spring is sleeved on the inner surface of the elastic telescopic rod (21).

6. The remotely controlled smart lock of claim 1, wherein: An alarm controller (22) is fixedly connected to the lower interior of the outer lock shell (8). The alarm controller (22) is electrically connected to the buzzer alarm (10). An infrared sensor (23) is provided above the buzzer alarm (10). The infrared sensor (23) is electrically connected to the alarm controller (22).

7. The remotely controlled smart lock of claim 1, wherein: The outer lock shell (8) has a function button (24) at the middle of the front end face. An outdoor display screen (25) is fixedly connected to the upper end of the front end face of the outer lock shell (8). An intelligent controller (26) is fixedly connected to the upper end of the interior of the outer lock shell (8). An outer handle (27) is rotatably connected to the lower side of the front end face of the outer lock shell (8).