Intelligent anti-theft security lock

Abstract

This utility model discloses an intelligent anti-theft security lock, belonging to the field of door locks. The intelligent anti-theft security lock includes a lock body and an inner handle mounted on the lock body. A mounting shell is fixed to the inner handle, and a locking component for locking the inner handle is provided on the mounting shell. A movable rod is slidably connected to the mounting shell, and a positioning groove is provided on the lock body. The locking component includes a grip rod. When locked, the locking component confines the movable rod inside the positioning groove and restricts the rotation of the inner handle. When unlocked, the grip rod moves, causing the movable rod to separate from the positioning groove, allowing the inner handle and the grip rod to rotate freely synchronously. This utility model uses the movable rod, under the action of a fixed plate and a first spring, to extend into the positioning groove. The cooperation between the movable rod and the positioning groove restricts the rotation of the inner handle, preventing the door lock from being forcibly opened from the inside through the peephole, thus enhancing security. Furthermore, the user only needs to naturally hold the inner handle and squeeze the grip rod to unlock the door, allowing for smooth and convenient one-handed operation.

Description

Technical Field

[0001] This utility model relates to the field of door locks, and in particular to an intelligent anti-theft security lock. Background Technology

[0002] With the increasing popularity of smart homes, smart locks are gradually becoming an important part of modern home security. Smart locks typically consist of a lock cylinder, circuit board, sensors, and actuators. The lock cylinder is responsible for the physical locking mechanism, while the circuit board controls the electronic functions. After entering unlocking information via fingerprint, password, or mobile app, the system verifies the data's authenticity and drives the motor to complete the unlocking action. This dual-security mechanism is the key difference between smart locks and traditional locks.

[0003] Despite advancements in electronic lock technology and the increasing thickness of steel plates in security doors to enhance overall security, the peephole, a seemingly minor detail, can become a vulnerability for criminals. Many security doors come with flimsy peepholes lacking adequate protection, creating opportunities for thieves and leading to frequent thefts. Some smart locks lack anti-peephole unlocking designs; when combined with ordinary security door peepholes (such as those made of plastic or without anti-pry features), thieves can easily insert tools through the peephole to pry open the handle. Furthermore, some electronic locks have the flaw that even after the door is deadbolted from the outside, the handle can still be pushed down and turned open from the inside, indicating a need for further security improvements. Utility Model Content

[0004] This utility model provides an intelligent anti-theft security lock, which can solve the problems of existing intelligent anti-theft security locks, such as the lack of anti-peeping design in some intelligent door locks, the ease with which thieves can insert tools to open the door handle when combined with ordinary anti-theft door peepholes (such as those made of plastic or without anti-pry design), and the defect that some electronic locks can still be opened by pressing down and turning the handle after the door is locked from the outside. The security needs to be improved.

[0005] An intelligent anti-theft security lock includes a lock body and an inner handle disposed on the lock body. A mounting shell is fixedly disposed on the inner handle. A locking component for locking the inner handle is disposed on the mounting shell. A movable rod is slidably connected to the mounting shell. A positioning groove is disposed on the lock body.

[0006] The locking assembly includes a grip bar. When locked, the locking assembly confines the movable bar inside the positioning groove and restricts the rotation of the inner handle. When unlocked, the grip bar moves, causing the movable bar to separate from the positioning groove, and the inner handle and the grip bar can rotate freely synchronously.

[0007] Preferably, the locking assembly further includes a fixing plate fixed to the movable rod and a first spring sleeved on the movable rod.

[0008] Preferably, a fixing ring is fixed on the side of the lock body near the inner handle, and the positioning groove is formed on the surface of the fixing ring.

[0009] Preferably, a connecting rod is fixedly provided at one end of the movable rod, and the connecting rod is fixedly connected to the grip rod.

[0010] Preferably, the grip bar is arranged parallel to the inner handle, and a gap is provided between the grip bar and the inner handle.

[0011] Preferably, the lock body is provided with an alarm component, which is used to sound an alarm when the door is ajar;

[0012] The alarm assembly includes a contact rod slidably connected to the lock body, a connecting plate fixed to one end of the contact rod, a top rod fixed to the connecting plate, a touch switch fixed inside the lock body and located on one side of the top rod, a buzzer embedded in the front panel of the lock body, and an elastic reset assembly. The contact rod is pressed in and triggers the touch switch when the door is fully closed. The touch switch is electrically connected to the buzzer. The elastic reset assembly is used to reset the connecting plate when the door is opened.

[0013] Preferably, the elastic reset assembly includes a fixed rod fixed to the lock body, an end plate fixed to one end of the fixed rod, and a second spring sleeved on the fixed rod, wherein the connecting plate is sleeved on the fixed rod.

[0014] Preferably, a first ball bearing is installed at the end of the movable rod near the positioning groove.

[0015] Preferably, one end of the contact rod extends to the outside of the lock body and is equipped with a second ball bearing, and the end of the contact rod located on the outside of the lock body is provided with a bevel structure.

[0016] Preferably, the password unlocking area on the front panel of the lock body is provided with a privacy film.

[0017] This utility model provides an intelligent anti-theft security lock, which has the following beneficial effects:

[0018] 1. When the door lock is locked normally, the movable rod extends into the positioning groove under the action of the fixed plate and the first spring. The cooperation between the movable rod and the positioning groove restricts the rotation of the inner handle, preventing the door lock from being forcibly opened from the inside through the peephole. The mechanical locking between the movable rod and the positioning groove can effectively prevent criminals from using the peephole to hook the inner handle to forcibly unlock the door, thus enhancing security. Moreover, the user only needs to naturally hold the inner handle and squeeze the lever to unlock the door. The operation is smooth and convenient with one hand.

[0019] 2. The contact state between the touch rod and the strike box determines whether the door is fully closed. When the door is ajar, there is a gap between the touch rod and the strike box. The touch rod prevents the top rod from contacting the touch switch, and the buzzer sounds an alarm to remind the user to close the door. This can effectively prevent burglary caused by the door not being closed tightly. The sound and light alarm enhances the warning effect. Attached Figure Description

[0020] Figure 1 A schematic diagram of the structure of an intelligent anti-theft security lock provided by this utility model. Figure 1 ;

[0021] Figure 2 A schematic diagram of the structure of an intelligent anti-theft security lock provided by this utility model. Figure 2 ;

[0022] Figure 3 A schematic diagram of the mounting shell and fixing ring structure of an intelligent anti-theft security lock provided by this utility model;

[0023] Figure 4 A rear view structural diagram of the lock body of an intelligent anti-theft security lock provided by this utility model;

[0024] Figure 5 This utility model provides an intelligent anti-theft security lock. Figure 3 Enlarged structural diagram at point A in the middle;

[0025] Figure 6 This utility model provides an intelligent anti-theft security lock. Figure 4 Enlarged structural diagram at point B.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Lock body; 2. Inner handle; 3. Mounting shell; 4. Movable rod; 5. Fixing plate; 6. First spring; 7. Connecting rod; 8. Grip rod; 9. Fixing ring; 10. Positioning groove; 11. First ball bearing; 12. Contact rod; 13. Connecting plate; 14. Fixing rod; 15. Second spring; 16. End plate; 17. Top rod; 18. Touch switch; 19. Buzzer. Detailed Implementation

[0028] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0029] like Figures 1 to 6As shown in the figure, an intelligent anti-theft security lock provided by this utility model embodiment includes a lock body 1 and an inner handle 2 disposed on the lock body 1. A mounting shell 3 is fixedly disposed on the inner handle 2. A locking component for locking the inner handle 2 is provided on the mounting shell 3. A movable rod 4 is slidably connected to the mounting shell 3. A positioning groove 10 is provided on the lock body 1. The locking component includes a grip rod 8, a fixing plate 5 fixedly disposed on the movable rod 4, and a first spring 6 sleeved on the movable rod 4. When locked, the locking component confines the movable rod 4 inside the positioning groove 10 and restricts the rotation of the inner handle 2. When unlocked, the grip rod 8 moves, causing the movable rod 4 to separate from the positioning groove 10, and the inner handle 2 and the grip rod 8 can rotate freely synchronously. A fixing ring 9 is fixedly disposed on the side of the lock body 1 near the inner handle 2, and the positioning groove 10 is formed on the surface of the fixing ring 9.

[0030] When the door lock is normally engaged, the inner handle 2 is locked by the locking assembly. The movable rod 4, under the action of the fixed plate 5 and the first spring 6, extends into the positioning groove 10. The cooperation between the movable rod 4 and the positioning groove 10 restricts the rotation of the inner handle 2, preventing the door lock from being forcibly opened from the inside through the peephole. When the user opens the door, they grasp the fingertip of the inner handle 2 to operate the grip rod 8. The grip rod 8 moves towards one side of the inner handle 2, thus separating the movable rod 4 from the positioning groove 10. The user can then freely rotate the inner handle 2, and components such as the mounting shell 3 and the movable rod 4 move freely with the rotation of the inner handle 2 to complete the unlocking operation.

[0031] In some specific implementation plans, such as Figure 2 , Figure 3 and Figure 4 As shown, a connecting rod 7 is fixedly provided at one end of the movable rod 4. The connecting rod 7 is fixedly connected to the grip rod 8. The grip rod 8 is arranged parallel to the inner handle 2, and a gap is provided between the grip rod 8 and the inner handle 2. The grip rod 8 is positioned close to the gripping part of the inner handle 2. When the user grips the inner handle 2, the fingers squeeze the grip rod 8 to move it. The connecting rod 7 can then drive the movable rod 4 to move away from the positioning groove 10, making the operation simple.

[0032] In some specific implementation plans, such as Figure 4 and Figure 6 As shown, the lock body 1 is equipped with an alarm component, which is used to sound an alarm when the door is ajar. The alarm component includes a contact rod 12 slidably connected to the lock body 1, a connecting plate 13 fixed to one end of the contact rod 12, a top rod 17 fixed to the connecting plate 13, a touch switch 18 fixed inside the lock body 1 and located on one side of the top rod 17, a buzzer 19 embedded in the front panel of the lock body 1, and a spring reset component. The contact rod 12 is pressed in and triggers the touch switch 18 when the door is fully closed. The touch switch 18 is electrically connected to the buzzer 19. The touch switch 18 is a normally closed switch, and the buzzer 19 is powered by the lock's battery.

[0033] When the door is closed: the contact rod 12 makes good contact with the latch box on the door frame and moves inward under pressure, the top rod 17 triggers the touch switch 18, the touch switch 18 is disconnected, and the buzzer 19 does not sound an alarm.

[0034] When the door is ajar: there is a gap between the contact rod 12 and the latch box, so the contact rod 12 is not pressed and does not move. The top rod 17 does not contact the touch switch 18. The touch switch 18 is closed, and the buzzer 19 sounds an alarm to remind the user to close the door.

[0035] In some specific implementation plans, such as Figure 6 As shown, the elastic reset assembly is used to reset the connecting plate 13 when the door is opened. The elastic reset assembly includes a fixed rod 14 fixed to the lock body 1, an end plate 16 fixed to one end of the fixed rod 14, and a second spring 15 sleeved on the fixed rod 14. The connecting plate 13 is sleeved on the fixed rod 14. When the door is opened, the contact rod 12 is not pushed, and the elasticity of the second spring 15 pushes the connecting plate 13 and the contact rod 12 on it to move outward of the lock body 1, so that the top rod 17 separates from the touch switch 18.

[0036] In some specific implementation plans, such as Figure 2 and Figure 5 As shown, a first ball bearing 11 is installed at one end of the movable rod 4 near the positioning groove 10, and a second ball bearing is installed at one end of the contact rod 12 extending to the outside of the lock body 1. The arrangement of the first ball bearing 11 and the second ball bearing facilitates the free movement of the movable rod 4 and the contact rod 12, reducing frictional resistance. Furthermore, the end of the contact rod 12 located on the outside of the lock body 1 has a beveled structure, and the beveled structure of the contact rod 12 is consistent with the beveled direction of the inclined bolt, ensuring the normal opening and closing of the lock body 1.

[0037] In some specific implementation plans, such as Figure 1 , Figure 2 and Figure 3 As shown, the keypad on the front panel of lock body 1 is equipped with a privacy screen. This privacy screen effectively reduces the risk of the keypad being spied on and leaked during input, thus improving security.

[0038] To facilitate understanding of the embodiments of this solution by those skilled in the art, the working principle of this solution will now be briefly explained in conjunction with specific application scenarios:

[0039] When the door lock is locked normally, the inner handle 2 is locked by the locking assembly. The movable rod 4 extends into the positioning groove 10 under the action of the fixed plate 5 and the first spring 6. The cooperation between the movable rod 4 and the positioning groove 10 restricts the rotation of the inner handle 2, preventing the door lock from being forcibly opened from the inside through the peephole.

[0040] When the user opens the door from inside, they grasp the inner handle 2 and move the grip rod 8 by pinching it with their fingers. This, along with the connecting rod 7, causes the movable rod 4 to move away from the positioning groove 10, thus separating the movable rod 4 from the positioning groove 10. The user can then freely rotate the inner handle 2, and the mounting shell 3, movable rod 4, and other components will move freely with the rotation of the inner handle 2 to complete the unlocking operation.

[0041] The mechanical locking between the movable rod 4 and the positioning groove 10 effectively prevents criminals from using the peephole to hook the inner handle 2 and forcibly unlock it, thus enhancing security. Furthermore, users only need to naturally hold the inner handle 2 and squeeze the grip rod 8 to unlock it, making single-handed operation smooth and convenient.

[0042] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A smart anti-theft safety lock comprising a lock body (1) and an inner handle (2) arranged on the lock body (1), characterized in that, The inner handle (2) is fixedly provided with a mounting shell (3), the mounting shell (3) is provided with a locking component for locking the inner handle (2), the mounting shell (3) is slidably connected with a movable rod (4), and the lock body (1) is provided with a positioning groove (10). The locking assembly includes a grip (8). When locked, the locking assembly confines the movable rod (4) inside the positioning groove (10) and restricts the inner handle (2) from rotating. When unlocked, the grip (8) moves, causing the movable rod (4) to separate from the positioning groove (10), and the inner handle (2) and the grip (8) can rotate freely in sync.

2. The intelligent anti-theft safety lock of claim 1, wherein, The locking assembly also includes a fixing plate (5) fixed on the movable rod (4) and a first spring (6) sleeved on the movable rod (4).

3. The intelligent anti-theft security lock as described in claim 2, characterized in that, The lock body (1) has a fixing ring (9) fixed on one side near the inner handle (2), and the positioning groove (10) is opened on the surface of the fixing ring (9).

4. The intelligent anti-theft security lock as described in claim 1, characterized in that, One end of the movable rod (4) is fixedly provided with a connecting rod (7), and the connecting rod (7) is fixedly connected to the grip rod (8).

5. The intelligent anti-theft security lock as described in claim 4, characterized in that, The grip (8) is arranged parallel to the inner handle (2), and a gap is provided between the grip (8) and the inner handle (2).

6. The intelligent anti-theft security lock as described in claim 1, characterized in that, The lock body (1) is equipped with an alarm component inside, which is used to issue an alarm when the door is ajar; The alarm assembly includes a contact rod (12) slidably connected to the lock body (1), a connecting plate (13) fixed to one end of the contact rod (12), a top rod (17) fixed to the connecting plate (13), a touch switch (18) fixed inside the lock body (1) and located on one side of the top rod (17), a buzzer (19) embedded in the front panel of the lock body (1), and an elastic reset assembly. The contact rod (12) is pressed in and triggers the touch switch (18) when the door is fully closed. The touch switch (18) is electrically connected to the buzzer (19). The elastic reset assembly is used to reset the connecting plate (13) when the door is opened.

7. The intelligent anti-theft security lock as described in claim 6, characterized in that, The elastic reset assembly includes a fixed rod (14) fixed on the lock body (1), an end plate (16) fixed on one end of the fixed rod (14), and a second spring (15) sleeved on the fixed rod (14). The connecting plate (13) is sleeved on the fixed rod (14).

8. The intelligent anti-theft security lock as described in claim 2, characterized in that, The movable rod (4) is fitted with a first ball bearing (11) at one end near the positioning groove (10).

9. The intelligent anti-theft security lock as described in claim 7, characterized in that, One end of the contact rod (12) extends to the outside of the lock body (1) and is equipped with a second ball bearing, and the end of the contact rod (12) located on the outside of the lock body (1) is provided with a bevel structure.

10. The intelligent anti-theft security lock as described in claim 9, characterized in that, The lock body (1) has a privacy screen on the front panel where the password unlocking is located.

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