A safe security lock

Abstract

The utility model discloses a safe lock, including shell and electronic controller, the electronic controller is used to send signal and power supply to electronic lock body, install the mechanical lock body and the electronic lock body of cooperation with electronic controller in the shell with key cooperation, the electronic lock body is used for limiting the locking state of mechanical lock body, realize two protection structures through the mutual cooperation of electronic control, electronic lock body and mechanical lock body, greatly promote the security performance, and the mechanical lock body adopts the lock core structure different from prior art, not only simplifies the lock body structure, and the thief cannot adopt the conventional unlocking means to break the mechanical lock body when stealing, and the criminal cannot predict the shape structure of the lock hole, also cannot break the mechanical lock core under the premise of not having suitable tool, further promote the security, in addition, the internal electronic lock body adopts the power supply of electronic controller, compared with the mode of using magnetic attraction, need not external power supply, simplify the overall structure.

Description

Technical Field

[0001] This utility model belongs to the field of safe lock technology, specifically a safe security lock. Background Technology

[0002] Currently, safes have two types of lock structures: mechanical locks and electronic locks. Mechanical locks are unlocked by inserting a key that matches the lock cylinder, or by turning the dial with the correct combination to open the lock cylinder and pull the bolt to open the door. However, because keys are easily lost or counterfeited, their anti-theft performance is low. Electronic locks, on the other hand, are unlocked by inputting the correct combination signal. The control circuit controls the electronic lock's actuator to move. The electromagnetic magnet engages (or the motor drives the lead screw), causing the slide bar to retract, releasing the clamping mechanism of the mechanical lock. Turning the handle of the mechanical lock causes the drive mechanism that cooperates with the door frame to move the bolt and open the door.

[0003] However, this type of device requires external power and has a very complex structure, making it unsuitable for small safes. Furthermore, for battery-powered electronic controllers, electronic unlocking is impossible if the battery runs out, and the safe cannot be opened. Therefore, a battery-replaceable structure is usually designed. However, the current replacement structure requires opening the entire panel, which can easily damage the panel. Utility Model Content

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

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A safe security lock, comprising a casing and an electronic controller;

[0007] The electronic controller is used to send signals and supply power to the electronic lock body;

[0008] The housing contains a mechanical lock body that engages with a key and an electronic lock body that engages with an electronic controller. The electronic lock body is used to limit the locking state of the mechanical lock body.

[0009] The electronic lock body includes a drive motor, and a locking block connector is installed at the output end of the drive motor. A torsion spring is provided between the locking block connector and the outer shell, and the extension end of the locking block connector can be locked into the slot of the mechanical lock body.

[0010] The mechanical lock body includes a bolt and a cylinder connected to each other, both of which are slidably connected to the outer shell. A return spring is provided between the bolt or the cylinder and the outer shell. A rotating seat is installed in the outer shell. A lock hole is provided on one side of the rotating seat. The lock hole is exposed on the surface of the outer shell. A lever is provided on the inner side of the rotating seat. The lever is placed in the movable groove of the lock cylinder.

[0011] In a further technical solution, the end face of the rotating seat near the lock hole is provided with a limiting protrusion, and the bottom surface of the outer shell is provided with an arc-shaped limiting groove that cooperates with the limiting protrusion.

[0012] In a further technical solution, the electronic controller includes a housing, in which an input module, a control module, and a power module are electrically connected; the power module is detachably connected to the control module and the housing, and the bottom of the housing has an opening for the power module to be removed;

[0013] The power module includes a battery box. The upper end of the battery box is provided with a first electrical connection terminal, which cooperates with a second electrical connection terminal in the housing. The bottom of the battery box is provided with two first spring arms. The first spring arms are provided with grooves facing the opening. There are buckle structures between the first spring arms and the housing on both sides.

[0014] In a further technical solution, the housing is provided with a cavity for placing the battery box.

[0015] In a further technical solution, the battery box is provided with a conical protrusion, and the housing is provided with a second elastic arm corresponding to the conical protrusion. The second elastic arm can abut against the conical protrusion, and the abutment surface is a slope.

[0016] In a further technical solution, the tapered protrusion is located on the back of the battery box.

[0017] The beneficial effects of this utility model are:

[0018] This invention achieves a dual-protection structure through the cooperation of electronic control, electronic lock body, and mechanical lock body, greatly improving security performance. Moreover, the mechanical lock body adopts a lock cylinder structure different from existing technologies, which not only simplifies the lock body structure, but also prevents thieves from using conventional unlocking methods to break the mechanical lock body. Furthermore, thieves cannot predict the shape and structure of the keyhole, and cannot break the mechanical lock cylinder without suitable tools, further enhancing security. In addition, the internal electronic lock body is powered by an electronic controller, which eliminates the need for external power supply compared to magnetic methods, simplifying the overall structure.

[0019] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0020] Figure 1 : Overall structural diagram of this utility model.

[0021] Figure 2 The present invention relates to a combined structure of a mechanical lock body and an electronic lock body. Figure 1 .

[0022] Figure 3The present invention relates to a combined structure of a mechanical lock body and an electronic lock body. Figure 2 .

[0023] Figure 4 The disassembly structure of the mechanical lock body and electronic lock body of this utility model Figure 1 .

[0024] Figure 5 The disassembly structure of the mechanical lock body and electronic lock body of this utility model Figure 2 .

[0025] Figure 6 Disassembly diagram of the electronic controller of this utility model.

[0026] Figure 7 Cross-sectional view of the electronic controller of this utility model.

[0027] Figure 8 : Rear view of the electronic controller of this utility model.

[0028] Reference numerals: 1-Outer shell, 11-Arc-shaped limiting groove, 2-Electronic controller, 21-Shell, 211-Opening, 212-Second electrical connection end, 213-Receiving cavity, 214-Second spring arm, 22-Input module, 23-Control module, 241-Battery box, 242-First electrical connection end, 243-First spring arm, 244-Groove, 245-Snap-on structure, 246-Conical protrusion, 3-Electronic lock body, 31-Drive motor, 32-Card block connector, 33-Torsion spring, 34-Extension end, 4-Mechanical lock body, 41-Lock tongue, 411-Flange, 42-Lock cylinder, 43-Card slot, 44-Reset spring, 451-Rotating seat, 452-Lock hole, 453-Lever, 454-Moving groove, 455-Limiting protrusion, 5-Pulley switch. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0030] Please refer to Figure 1-8 ;

[0031] This utility model aims to provide an electronic lock that is more secure and has a simpler structure. Specifically, it includes a housing 1 and an electronic controller 2. The housing 1 houses a mechanical lock body 4, an electronic lock body 3, and other components. The components and the electronic lock body 3 are electrically connected to the electronic controller 2, which can be an electronic combination lock or a fingerprint lock, etc., as long as it outputs an unlocking signal after authentication through encrypted data. In the initial state, the electronic lock body 3 locks the mechanical lock body 4, limiting the locking state of the mechanical lock body 4. At this time, the mechanical lock body 4 cannot be opened with a key. Therefore, the electronic lock body 3 is the first line of defense. It first needs to pass electronic authentication, such as fingerprint recognition or entering the correct password. The electronic controller 2 sends a signal to the electronic lock body 3, causing the electronic lock body 3 to open and release the lock on the mechanical lock body 4 before the mechanical lock body 4 can be opened with a key.

[0032] More specifically, the electronic lock body 3 includes a drive motor 31, the output end of which is equipped with a locking block connector 32, and a torsion spring 33 is provided between the locking block connector 32 and the outer shell 1. The mechanical lock body 4 includes a lock tongue 41 and a lock cylinder 42 connected to each other, both of which are slidably connected in the outer shell 1. A return spring 44 is provided between the lock tongue 41 or the lock cylinder 42 and the outer shell 1. Preferably, a separate sliding groove is provided in the outer shell 1 for the lock tongue 41 and the lock cylinder 42, and the return spring 44 abuts between the lock tongue 41 and the outer shell 1. A rotating seat 451 is installed in the outer shell 1. A lock hole 452 is provided on one side of the rotating seat 451, which is exposed on the surface of the outer shell 1. A lever 453 is provided on the inner side of the rotating seat 451, and the lever is placed in the movable groove 454 of the lock cylinder 42.

[0033] It should be noted that the bolt 41 and the lock cylinder 42 can be an integral structure or a separate component structure, which is not limited here. However, a separate structure is more convenient for assembly. A slot 43 is provided at the bolt 41 or the lock cylinder 42. In addition, the lock hole 452 can be customized with a special shape. The figure is only used as an example.

[0034] In the initial state, the extension of the locking block connector 32 is engaged in the slot 43, hard-locking the mechanical lock body 4. At this time, the bolt 41 or the lock cylinder 42 cannot be moved back. After the correct electronic key is entered, the electronic controller 2 sends a signal to the drive motor 31, causing the drive motor 31 to rotate and thus drive the locking block connector 32 to move. Its extension end 34 is pulled out from the slot 43, releasing the restriction on the mechanical lock. In this embodiment, the drive motor 31 used is a small DC motor. The electronic controller 2 not only controls the start and stop of the drive motor 31, but also supplies power to the drive motor 31 and the components. Then, the key is inserted into the lock hole 452 and the rotating seat 451 is rotated, causing the lever 453 to deflect and simultaneously drive the lock cylinder 42 to move back. The lock cylinder 42 drives the bolt 41 to move back and retract into the outer shell 1, while compressing the return spring 44. At this time, the lock can be unlocked.

[0035] After the key is released, the mechanical lock body 4 will be pushed forward again under the action of the reset spring 44. In the prior art, the electronic controller 2 is set with a timer. After the correct electronic key is entered, the mechanical lock cylinder 42 needs to be opened with the key within a short time. Otherwise, the electronic controller 2 will stop supplying power to the drive motor 31. Under the action of the torsion spring 33, the locking block connector 32 will be reset, so that its extension will be re-engaged into the slot 43 to lock the mechanical lock cylinder 42.

[0036] Therefore, if a criminal has cracked the key of the electronic controller 2 during the theft, but cannot crack the mechanical lock body 4 in a short time, the electronic lock body 3 will relock the mechanical lock body 4. At this time, it is necessary to crack the electronic controller 2 again. The electronic controller 2 is usually equipped with a password reset function. That is, if the electronic controller 2 fails to authenticate multiple times, the authentication key of the electronic controller 2 will become invalid and needs to be reset to unlock, which greatly improves security.

[0037] In this embodiment, a return spring 44 with a large thrust can be used to apply a large thrust to the mechanical lock body 4. Even when using a key, it still requires a lot of force to open. Of course, the large force does not use the strength of the whole body. When unlocking with a key, it is only a sense of resistance. It requires more force than a normal key. Without a suitable tool, the rotating seat 451 cannot be rotated with the large thrust. Since the structure of the mechanical lock body 4 is different from the existing floating bolt structure, when it is stolen, the thief cannot use conventional unlocking methods to crack the mechanical lock body 4. Moreover, the thief cannot predict the shape and structure of the keyhole 452. Without a suitable tool, it is also impossible to crack the mechanical lock cylinder 42, thus further improving security.

[0038] Furthermore, a toggle switch 5 is provided within the outer casing 1, and a flange 411 corresponding to the toggle switch 5 is provided at the position of the latch 41. At the same time, the toggle switch 5 is powered by the electronic controller 2. When the latch 41 retracts, the flange 411 touches the toggle switch 5 to close it and sends a signal to the electronic controller 2. At this time, the timer in the electronic controller 2 is activated, and the flange 411 does not cross the toggle switch 5, maintaining its closed state.

[0039] This invention achieves a dual-protection structure through the cooperation of electronic control, electronic lock body 3, and mechanical lock body 4, greatly improving security performance. Moreover, the mechanical lock body 4 adopts a lock cylinder 42 structure different from existing technologies, which not only simplifies the lock body structure, but also prevents thieves from using conventional unlocking methods to break the mechanical lock body 4. Furthermore, thieves cannot predict the shape and structure of the keyhole 452, and cannot break the mechanical lock cylinder 42 without suitable tools, further enhancing security. In addition, the internal electronic lock body 3 is powered by an electronic controller 2, which eliminates the need for external power supply compared to using magnetic attraction, simplifying the overall structure.

[0040] In this embodiment of the utility model, the end face of the rotating seat 451 near the lock hole 452 is provided with a limiting protrusion 455, and the bottom surface of the outer shell 1 is provided with an arc-shaped limiting groove 11 that cooperates with the limiting protrusion 455 to limit the rotation range of the rotating seat 451.

[0041] One embodiment of the present invention relates to an electronic controller 2, specifically including a housing 21. An input module 22, a control module 23, and a power module are electrically connected and installed in the housing 21. The input module 22 can be a password panel or a fingerprint module, etc. The power module is detachably connected to the control module 23 and the housing 21, and the bottom of the housing 21 has an opening 211 for the power module to be removed. The power module includes a battery box 241, the upper end of which has a first electrical connection end 242 that cooperates with a second electrical connection end 212 in the housing 21. The second electrical connection end 212 is electrically connected to the control module 23. The first electrical connection end 242 and the second electrical connection end 212 can be connectors or metal contact springs, etc. The bottom of the battery box 241 has two first spring arms 243, each with a groove 244 facing the opening 211. A latching structure 245 is provided between the first spring arms 243 and the housing 21.

[0042] In the initial state, the first electrical connection terminal 242 and the second electrical connection terminal 212 engage in contact, preventing the battery box 241 from being pushed further. Secondly, the two first spring arms 243 are in an open state, and the latching structure 245 secures the battery box 241 to the housing 21, preventing the battery box 241 from falling out of the opening 211.

[0043] In this embodiment, the two grooves 244 correspond to the positions of two fingers. When the two fingers pinch together, the two first spring arms 243 move closer to each other, thereby disengaging the buckle structure 245 and allowing the battery box 241 to be pulled out of the housing 21 to replace the battery.

[0044] Preferably, a receiving cavity 213 is provided in the housing 21, which is adapted to the size of the battery box 241, so as to prevent the battery box 241 from shaking and causing the first electrical connection terminal 242 and the second electrical connection terminal 212 to detach.

[0045] Normally, the opening 211 faces downwards. When the battery box 241 is pulled out, it will fall directly downwards due to gravity. If it is not held firmly, the battery box 241 will fall to the ground, causing the batteries to scatter or break. Therefore, an anti-fall structure is provided between the battery box 241 and the housing 21. More specifically, the battery box 241 is provided with a conical protrusion 246, and the housing 21 is provided with a second spring arm 214 corresponding to the conical protrusion 246. The second spring arm 214 can abut against the conical protrusion 246, and the contact surface is a slope. Preferably, the conical protrusion 246 is located on the back of the battery box 241, and the second spring arm 214 is located on the back of the housing 21 corresponding to the conical protrusion 246.

[0046] After the buckle structure 245 is disengaged, the battery box 241 tends to fall. When it falls to a certain position, the conical protrusion 246 and the upper end of the second spring arm 214 come into contact and thus prevent further falling. At this time, you can change your hand gesture, hold the battery box 241 firmly, and pull the battery box 241 down with force. By squeezing, the second spring arm 214 is deformed, so that the conical protrusion 246 crosses the contact surface, and then it can be pulled out smoothly.

[0047] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0048] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A safe security lock, characterized in that: Includes a housing (1) and an electronic controller (2); The electronic controller (2) is used to send signals and supply power to the electronic lock body (3); The outer casing (1) is equipped with a mechanical lock body (4) that cooperates with a key and an electronic lock body (3) that cooperates with an electronic controller (2). The electronic lock body (3) is used to limit the locking state of the mechanical lock body (4). The electronic lock body (3) includes a drive motor (31), and a locking block connector (32) is installed at the output end of the drive motor (31). A torsion spring (33) is provided between the locking block connector (32) and the outer shell (1), and the extension end (34) of the locking block connector (32) can be inserted into the slot (43) of the mechanical lock body (4). The mechanical lock body (4) includes a bolt (41) and a lock cylinder (42) connected to each other, both of which are slidably connected in the outer shell (1). A return spring (44) is provided between the bolt (41) or the lock cylinder (42) and the outer shell (1). A rotating seat (451) is installed in the outer shell (1). A lock hole (452) is provided on one side of the rotating seat (451). The lock hole (452) is exposed on the surface of the outer shell (1). A lever (453) is provided on the inner side of the rotating seat (451). The lever (453) is placed in the movable groove (454) of the lock cylinder (42). The electronic controller (2) includes a housing (21), in which an input module (22), a control module (23), and a power module are electrically connected; the power module is detachably connected to the control module (23) and the housing (21), and the bottom of the housing (21) is provided with an opening (211) for the power module to be removed; The power module includes a battery box (241), the upper end of which is provided with a first electrical connection end (242), the first electrical connection end (242) cooperates with a second electrical connection end (212) in the housing (21), the bottom of the battery box (241) is provided with two first spring arms (243), the first spring arms (243) are provided with grooves (244) facing the opening (211), and a buckle structure (245) is provided between the first spring arms (243) and the housing (21).

2. A safe security lock according to claim 1, characterized in that: The rotating seat (451) has a limiting protrusion (455) on its end face near the lock hole (452), and the bottom surface of the outer shell (1) has an arc-shaped limiting groove (11) that cooperates with the limiting protrusion (455).

3. A safe security lock according to claim 1, characterized in that: The housing (21) is provided with a receiving cavity (213) for placing the battery box (241).

4. A safe security lock according to claim 1, characterized in that: The battery box (241) is provided with a conical protrusion (246), and the housing (21) is provided with a second elastic arm (214) corresponding to the conical protrusion (246). The second elastic arm (214) can abut against the conical protrusion (246), and the abutting surface is a slope.

5. A safe security lock according to claim 4, characterized in that: The tapered protrusion (246) is located on the back of the battery box (241).

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