Door lock assembly of safe box

Abstract

A door lock assembly of a safe box comprises a driving device arranged on a box door and further comprises a sliding block connected with the driving device in a linkage mode. The spring bolt is in linkage connection with the sliding block, and the driving device drives the spring bolt to be switched between the unlocking position and the locking position through the sliding block; the elastic reset piece is arranged between the spring bolt and the sliding block, the elastic reset piece provides acting force towards the locking position direction for the spring bolt, and when the spring bolt is located at the locking position and the sliding block is static, the spring bolt can move towards the unlocking position direction by pressing the spring bolt. The door lock assembly of the safe box is more convenient and more reliable to lock a door.

Description

Technical Field

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

[0002] Safes are typically used to store valuables and important documents. They require a lock mechanism to secure the contents.

[0003] An existing type of safe door lock assembly, as disclosed in Chinese Utility Model Patent Publication No. CN 221973249 U, has the following structure: Figure 1 As shown, the mechanism includes a base plate 1a, a lock cylinder 2a, a lock tongue 3a, a DC motor 4a, and a lock tongue connector 5a. The lock tongue 3a is fixed to the front end of the lock tongue connector 5a. The drive shaft of the DC motor 4a is connected to the lock tongue connector 5a through a synchronous gear and a slotted gear. When the DC motor 4a starts, it drives the lock tongue connector 5a to move. The movement of the lock tongue connector 5a causes the lock tongue 3a to extend or retract, thereby realizing the locking or unlocking.

[0004] However, the existing safe door lock assembly has the following technical problems: Since the latch 3a is fixed to the front end of the latch connector 5a, and the latch connector 5a is connected to the drive shaft of the DC motor 4a, after opening the door, in order to prevent the latch 3a from interfering with the door when locking it again, the latch 3a is usually in a retracted state. However, when locking the door again, it is necessary not only to close the door, but also to operate the handle to extend the latch 3a, which is not convenient. If the handle is forgotten when closing the door, the door will be mistakenly pushed up as the locking action, and the locking is unreliable. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a door lock component for a safe that is more convenient and reliable to lock.

[0006] The technical solution of this utility model is: a door lock assembly for a safe, including a drive device disposed on the safe door, and further comprising:

[0007] A slider, which is linked to the driving device;

[0008] The locking tongue is linked to the slider, and the driving device drives the locking tongue to switch between the unlocking position and the locking position through the slider.

[0009] An elastic reset element is disposed between the latch and the slider. The elastic reset element provides a force to the latch in the direction of the locked position. When the latch is in the locked position and the slider is stationary, pressing the latch can move the latch in the direction of the unlocked position.

[0010] The working principle of the door lock assembly of this utility model safe is as follows:

[0011] Taking the example of the latch unlocking when the slider slides to the left and locking when the slider slides to the right; assuming the latch is initially locked, it extends under the action of the elastic reset element; when the drive device drives the slider to slide to the left, the latch moves to the left with the slider because of the linkage between the latch and the slider, i.e., the latch retracts towards the unlocking position, and the door is opened after the latch retracts; after the door is opened, the drive device drives the slider to slide to the right to release the latch from the unlocking position and allow the latch to return to the locked position under the action of the elastic reset element, so the latch is in the extended state after the door is opened; when it is necessary to lock the door again, since the latch and the slider are movably connected, simply closing the door will cause the latch to retract inward under the pressure of the door and the box body. After the door is completely closed, the latch will automatically pop out under the action of the elastic reset element to complete the self-locking.

[0012] With the above structure, this utility model has the following advantages:

[0013] The door lock assembly of this utility model safe features a latch and a slider that are movably connected. This allows the latch to automatically retract when extended, thanks to the pressure exerted by the door and the safe body. Furthermore, it can self-lock using a spring-loaded reset mechanism after the door is fully closed. Thus, when the door is opened, the latch can be extended to the locked position without affecting the normal closing of the door or the latch's self-locking mechanism the next time it is locked. This makes locking the safe simpler – just close the door – making operation more convenient and locking more reliable.

[0014] Preferably, the latch includes a tongue and a sliding portion disposed on one side of the tongue. The tongue has a guide slope, and the sliding portion has a first groove. A portion of the slider is slidably connected within the first groove of the sliding portion, and the elastic reset member is installed within the first groove and abuts against the slider. The guide slope on the tongue makes the latch easier to press in the locked position. The first groove on the sliding portion not only enables the movable connection between the slider and the latch but also allows for the installation of the elastic reset member, resulting in a simpler and more compact overall structure.

[0015] Preferably, the first slide groove has an opening on the side away from the tongue, and one side of the slider is slidably connected to the first slide groove through the opening. A first linkage structure is also provided between the slider and the latch, comprising a first limiting step on the opening side of the first slide groove and a second limiting step on the slider. When the slider moves towards the unlocking position, the second limiting step presses against the first limiting step, causing the latch to move with the slider towards the unlocking position. This first linkage structure is simple and compact, reliably enabling synchronous movement of the latch and slider during unlocking, and preventing the slider from disengaging from the opening side during sliding.

[0016] Preferably, a limiting post is provided on the side of the first groove near the tongue, and a limiting seat corresponding to the position of the limiting post is provided inside the slider. One end of the elastic reset member is sleeved outside the limiting post, and the other end is located inside the limiting seat. This arrangement not only ensures reliable guidance for both ends of the elastic reset member, but also utilizes the internal space of the slider, resulting in a simpler and more compact structure.

[0017] Preferably, the driving device includes a motor fixed to the door, the motor having an eccentric shaft, a synchronously rotating cam on the eccentric shaft, a connecting shaft on the side of the cam near the slider, and a second groove on the slider that slides with the connecting shaft; when the motor drives the eccentric shaft to rotate, the connecting shaft follows the rotation of the cam and slides relative to the second groove, thereby causing the slider to slide within the first groove. This configuration is an electric unlocking scheme, which can reliably and stably convert the rotational motion of the eccentric shaft into the linear sliding motion of the slider.

[0018] Preferably, the lock also includes an unlocking component mounted on the door and driven to rotate by an emergency key. A second linkage structure is provided between the unlocking component and the sliding portion of the latch. When the emergency key is turned to unlock, the unlocking component, through the second linkage structure, drives the latch to move towards the unlocking position. This configuration provides a manual unlocking solution, which, in conjunction with an electric unlocking solution, makes unlocking more reliable.

[0019] Preferably, the second linkage structure includes a toggle part disposed on the unlocking member and a hook part disposed on the sliding part; when the emergency key is turned to unlock, the toggle part of the unlocking member presses against the hook part of the sliding part, causing the bolt to move towards the unlocking position. This second linkage structure is simple and can reliably drive the bolt to unlock.

[0020] Preferably, a touch switch is also included on the door, located near the motor side of the slider. The touch switch is triggered when the slider slides towards the unlocking position until the bolt retracts into place. This configuration allows the touch switch to detect whether the slider has driven the bolt to retract into place. Once the bolt retracts into place and the door is opened, the motor can be automatically reversed to put the bolt in the locked position for easy locking next time.

[0021] Preferably, the tongue includes a base and a protective cover disposed outside the base, the protective cover being detachably connected to the base. Since the tongue is prone to wear during extension, retraction, and compression, the protective cover allows for replacement of the wear problem without needing to replace the entire latch.

[0022] Preferably, the device also includes guide seats for the slider and the latch on the door, with a top cover on the guide seats. This design prevents the slider and the latch from disengaging from each other. Attached Figure Description

[0023] Figure 1 A schematic diagram of the door lock assembly of an existing safe;

[0024] Figure 2 This is a structural schematic diagram of the door lock assembly of the safe of this utility model;

[0025] Figure 3 This is a structural schematic diagram of the door lock assembly of the safe of this utility model (with the top cover hidden);

[0026] Figure 4 This is another structural schematic diagram of the door lock assembly of the safe of this utility model (with the top cover hidden);

[0027] Figure 5 This is a schematic diagram showing the cooperation between the drive device, slider, and locking tongue of this utility model;

[0028] Figure 6 This is a schematic diagram of the door lock assembly of the safe of this utility model installed on the safe body;

[0029] Figure 7 This is a schematic diagram of the door lock assembly of the safe of this utility model installed on the safe body (with the cover on);

[0030] In the existing technical diagram: 1a-mechanism base plate, 2a-lock cylinder, 3a-lock tongue, 4a-DC motor, 5a-lock tongue connector;

[0031] In the figures of this utility model: 1-box door, 2-drive device, 3-slider, 4-locking tongue, 5-guide slope, 6-elastic reset component, 7-first linkage structure, 8-box body, 9-tongue, 10-sliding part, 11-first slide groove, 12-opening, 13-first limiting step, 14-second limiting step, 15-limiting post, 16-limiting seat, 17-motor, 18-eccentric shaft, 19-cam, 20-connecting shaft, 21-second slide groove, 22-unlocking component, 23-toggle part, 24-hook part, 25-touch switch, 26-base, 27-protective cover, 28-motor mounting base, 29-unlocking component mounting base, 30-guide seat for slider and locking tongue, 31-cover, 32-top cover, 33-buckle structure. Detailed Implementation

[0032] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0033] Example:

[0034] A door lock component for a safe, such as Figure 2-7 As shown, the device includes a drive unit 2 mounted on the door 1, and also includes:

[0035] Slider 3 is linked to drive device 2;

[0036] The locking tongue 4 is linked to the slider 3, and the driving device 2 drives the locking tongue 4 to switch between the unlocked and locked positions through the slider 3.

[0037] The elastic reset member 6 is disposed between the latch 4 and the slider 3. The elastic reset member 6 provides a force to the latch 4 in the direction of the locked position. When the latch 4 is in the locked position and the slider 3 is stationary, pressing the latch 4 can move the latch 4 in the direction of the unlocked position.

[0038] For clarity, Figure 6 and Figure 7 The diagram only shows a portion of the structure of box 8; in this embodiment, the left, right, top, and bottom positions are shown in the diagram. Figure 3 For reference; in this embodiment, the slider 3 slides left and right on the door 1, the latch 4 is located on the right side of the slider 3, the drive device 2 is located on the left side of the slider 3, when the slider 3 slides to the right, the latch 4 moves towards the locked position, when the slider 3 slides to the left, the latch 4 slides towards the unlocked position, and the elastic reset member 6 is, for example, a compression spring.

[0039] In this embodiment, the door lock assembly of the safe is configured with a latch 4 and a slider 3 that are movably connected. This allows the latch 4 to automatically retract when extended, thanks to the pressure exerted on it by the door 1 and the body 8. Furthermore, it can self-lock using the elastic reset member 6 after the door 1 is fully closed. Thus, when the door 1 is opened, the latch 4 can be extended to the locked position without affecting the normal closing of the door 1 or the self-locking of the latch 4 the next time the door is locked. Therefore, when locking the safe, only the door 1 needs to be closed, making operation more convenient and locking more reliable.

[0040] The locking tongue 4 includes a tongue 9 and a sliding part 10 disposed on one side of the tongue 9. The tongue 9 is provided with a guide slope 5, and the sliding part 10 is provided with a first groove 11. A portion of the slider 3 is slidably connected in the first groove 11 of the sliding part 10. An elastic reset member 6 is installed in the first groove 11 and abuts against the slider 3. In this embodiment, the first groove 11 extends in the left-right direction and the bottom of the first groove 11 is closed. The guide slope 5 on the tongue 9 makes it easier for the locking tongue 4 to be squeezed in the locked position. The first groove 11 on the sliding part 10 not only enables the movable connection between the slider 3 and the locking tongue 4, but also allows the elastic reset member 6 to be installed in the first groove 11, making the overall structure simpler and more compact.

[0041] An opening 12 is provided on the side of the first slide groove 11 away from the tongue 9. One side of the slider 3 is slidably connected to the first slide groove 11 through the opening 12. A first linkage structure 7 is also provided between the slider 3 and the locking tongue 4. The first linkage structure 7 includes a first limiting step 13 provided on the side of the opening 12 of the first slide groove 11 and a second limiting step 14 provided on the slider 3. The second limiting step 14 is closer to the tongue 9 than the first limiting step 13. When the slider 3 moves towards the unlocking position, the second limiting step 14 presses against the first limiting step 13, causing the locking tongue 4 to move with the slider 3 towards the unlocking position. In this embodiment, the side of the first slide groove 11 away from the tongue 9 is the left side, that is, the opening 12 is provided on the left side of the first slide groove 11, and the right side of the slider 3 is slidably connected to the first slide groove 11 through the opening 12. The second limiting step 14 is located to the right of the first limiting step 13. This first linkage structure 7 is simple and compact, which can not only reliably realize the synchronous movement of the locking tongue 4 and the slider 3 when unlocking, but also prevent the slider 3 from disengaging from the opening 12 side during sliding.

[0042] A limiting post 15 is provided on the side of the first slide groove 11 near the tongue 9. A limiting seat 16 corresponding to the position of the limiting post 15 is provided inside the slider 3. One end of the elastic reset member 6 is sleeved outside the limiting post 15 and the other end is located inside the limiting seat 16. In this embodiment, the side of the first slide groove 11 near the tongue 9 is the right side, that is, the limiting post 15 is provided on the right side of the first slide groove 11, and the limiting seat 16 is provided at the bottom of the right side of the slider 3. This arrangement not only ensures reliable guidance for both ends of the elastic reset member 6, but also utilizes the internal space of the slider 3, resulting in a simpler and more compact structure.

[0043] The drive unit 2 includes a motor 17 fixed to the door 1. The motor 17 has an eccentric shaft 18, and a synchronously rotating cam 19 is provided on the eccentric shaft 18. A connecting shaft 20 is provided on the side of the cam 19 near the slider 3. The slider 3 has a second slide groove 21 that slides with the connecting shaft 20. When the motor 17 drives the eccentric shaft 18 to rotate, the connecting shaft 20 rotates with the cam 19 and slides relative to the second slide groove 21, thereby driving the slider 3 to slide within the first slide groove 11. This configuration is an electric unlocking scheme, which can reliably and stably convert the rotational motion of the eccentric shaft 18 into the linear sliding motion of the slider 3.

[0044] It also includes an unlocking component 22 mounted on the door 1 and driven to rotate by an emergency key. A second linkage structure is provided between the unlocking component 22 and the sliding portion 10 of the bolt 4. When the emergency key is turned to unlock, the unlocking component 22 drives the bolt 4 to move towards the unlocking position via the second linkage structure. This configuration is a manual unlocking solution, which, in conjunction with an electric unlocking solution, makes unlocking more reliable.

[0045] The second linkage structure includes a toggle part 23 on the unlocking member 22 and a hook part 24 on the sliding part 10. When the emergency key is turned to unlock, the toggle part 23 of the unlocking member 22 presses against the hook part 24 of the sliding part 10, causing the bolt 4 to move towards the unlocking position. In this embodiment, the unlocking member 22 is columnar, the toggle part 23 protrudes from the outer peripheral sidewall of the unlocking member 22, and the hook part 24 protrudes from the sliding part 10 and can interfere with the rotated toggle part 23. This second linkage structure is simple and can reliably drive the bolt 4 to unlock.

[0046] It also includes a touch switch 25 installed on the door 1. The touch switch 25 is located near the motor 17 of the slider 3. The touch switch 25 is triggered when the slider 3 slides towards the unlocking position until the latch 4 retracts into place. In this embodiment, the motor 17 side of the slider 3 is on the left side. This setup allows the touch switch 25 to detect whether the slider 3 has driven the latch 4 to retract into place. Once the latch 4 retracts into place and the door 1 is opened, the motor 17 can be automatically reversed to put the latch 4 in the locked position for easy locking next time.

[0047] The tongue 9 includes a base 26 and a protective cover 27 disposed outside the base 26. The protective cover 27 is detachably connected to the base 26. In this embodiment, the protective cover 27 is V-shaped, and the protective cover 27 is detachably connected to the base 26 by a snap-fit ​​structure 33. Since the tongue 9 is prone to wear during the extension and compression process, the wear problem can be solved by replacing the protective cover 27 after it is installed, without having to replace the entire locking tongue 4.

[0048] The sliding part 10 is integrally formed with the base 26. This arrangement makes the connection between the sliding part 10 and the tongue 9 more secure and reduces assembly steps.

[0049] It also includes guide seats 30 for the slider 3 and the latch 4 mounted on the door 1, and a top cover 32 is provided on the top of the guide seats 30 for the slider 3 and the latch 4. This arrangement prevents the slider 3 and the latch 4 from disengaging from each other.

[0050] In this embodiment, the door 1 is also provided with a motor mounting base 28 and an unlocking component mounting base 29, and the drive device 2, slider 3, locking tongue 4 and unlocking component 22 are also covered in the same cover 31.

[0051] The working principle of the door lock assembly of the safe in this embodiment is as follows:

[0052] Assuming the initial state is that the bolt 4 is locked, the bolt 4 will extend under the action of the elastic reset member 6.

[0053] When the electric unlocking is performed, the motor 17 drives the eccentric shaft 18 to rotate, the rotation of the eccentric shaft 18 drives the cam 19 to rotate, and the rotation of the cam 19 drives the connecting shaft 20 to rotate. After the connecting shaft 20 rotates, it slides relative to the second slide groove 21 of the slider and drives the slider 3 to slide to the left in the first slide groove 11. During the leftward sliding of the slider 3, the second limiting step 14 of the slider 3 presses against the first limiting step 13 of the latch 4, causing the latch 4 to retract to the left along with the slider 3, that is, the latch 4 moves towards the unlocking position. When the slider 3 slides to the left until the latch 4 retracts to the correct position and the door 1 is opened... When the left side of slider 3 triggers touch switch 25; after receiving the trigger signal from touch switch 25, motor 17 controls slider 3 to slide to the right, and latch 4 is released from the unlock position and extends to the locked position under the action of elastic reset member 6; when the door needs to be locked again, since latch 4 and slider 3 are movably connected and a guide slope 5 is provided on one side of latch 4, simply close the door 1, and latch 4 will retract inward under the pressure of door 1 and box body 8. After door 1 is completely closed, latch 4 will automatically pop out under the action of elastic reset member 6 to complete self-locking;

[0054] When manually unlocking, slider 3 remains stationary. Turning the emergency key causes the actuating part 23 of the unlocking component 22 to press against the hook 24 of the sliding part 10 of the latch 4. The latch 4 slides to the left relative to slider 3, i.e., the latch 4 moves towards the unlocking position. After the latch 4 retracts into place, the door 1 opens. Releasing the emergency key causes the latch 4 to return to the locked position under the action of the elastic reset component 6. Therefore, whether manually or electrically unlocking, after opening the door 1, the latch 4 always returns to the locked position to facilitate locking the door next time.

Claims

1. A door lock assembly for a safe, comprising a drive mechanism (2) disposed on the door (1), characterized in that, Also includes: The slider (3) is linked to the driving device (2); The locking tongue (4) is linked to the slider (3), and the driving device (2) drives the locking tongue (4) to switch between the unlocking position and the locking position through the slider (3); An elastic reset member (6) is disposed between the latch (4) and the slider (3). The elastic reset member (6) provides a force to the latch (4) in the direction of the locked position. When the latch (4) is in the locked position and the slider (3) is stationary, pressing the latch (4) can move the latch (4) in the direction of the unlocked position.

2. The door lock assembly of a safe according to claim 1, characterized in that: The locking tongue (4) includes a tongue (9) and a sliding part (10) disposed on one side of the tongue (9). The tongue (9) is provided with a guide slope (5). The sliding part (10) is provided with a first groove (11). A part of the slider (3) is slidably connected in the first groove (11) of the sliding part (10). The elastic reset member (6) is installed in the first groove (11) and abuts against the slider (3).

3. The door lock assembly of a safe according to claim 2, characterized in that: An opening (12) is provided on the side of the first slide groove (11) away from the tongue (9), and one side of the slider (3) is slidably connected to the first slide groove (11) through the opening (12); a first linkage structure (7) is also provided between the slider (3) and the locking tongue (4), the first linkage structure (7) includes a first limiting step (13) provided on the side of the opening (12) of the first slide groove (11) and a second limiting step (14) provided on the slider (3); when the slider (3) moves toward the unlocking position, the second limiting step (14) presses against the first limiting step (13) and causes the locking tongue (4) to move toward the unlocking position along with the slider (3).

4. A door lock assembly for a safe according to claim 2 or 3, characterized in that: The first slide (11) is provided with a limiting post (15) on the side near the tongue (9), and the slider (3) is provided with a limiting seat (16) corresponding to the position of the limiting post (15). One end of the elastic reset member (6) is sleeved outside the limiting post (15) and the other end is located inside the limiting seat (16).

5. The door lock assembly of a safe according to claim 2, characterized in that: The driving device (2) includes a motor (17) fixed on the door (1). The motor (17) is provided with an eccentric shaft (18). The eccentric shaft (18) is provided with a synchronously rotating cam (19). The cam (19) is provided with a connecting shaft (20) on the side close to the slider (3). The slider (3) is provided with a second slide groove (21) that slides with the connecting shaft (20). When the motor (17) drives the eccentric shaft (18) to rotate, the connecting shaft (20) rotates with the cam (19) and slides relative to the second slide groove (21), thereby driving the slider (3) to slide in the first slide groove (11).

6. The door lock assembly of a safe according to claim 2, characterized in that: It also includes an unlocking component (22) installed on the door (1) and driven to rotate by an emergency key. A second linkage structure is provided between the unlocking component (22) and the sliding part (10) of the latch (4). When the emergency key is turned to unlock, the unlocking component (22) drives the latch (4) to move toward the unlocking position through the second linkage structure.

7. The door lock assembly of a safe according to claim 6, characterized in that: The second linkage structure includes a toggle part (23) provided on the unlocking member (22) and a hook part (24) provided on the sliding part (10); when the emergency key is turned to unlock, the toggle part (23) of the unlocking member (22) presses against the hook part (24) of the sliding part (10) to make the bolt (4) move toward the unlocking position.

8. The door lock assembly of a safe according to claim 5, characterized in that: It also includes a touch switch (25) installed on the door (1). The touch switch (25) is located near the motor (17) installed on the slider (3). The touch switch (25) is triggered when the slider (3) slides towards the unlocking position and the latch (4) retracts into place.

9. A door lock assembly for a safe according to claim 2, characterized in that: The tongue (9) includes a base (26) and a protective cover (27) disposed outside the base (26), the protective cover (27) being detachably connected to the base (26).

10. A door lock assembly for a safe according to claim 2, characterized in that: It also includes guide seats (30) for the slider (3) and the latch (4) provided on the door (1), and the top of the guide seats (30) for the slider (3) and the latch (4) is also provided with a top cover (32).

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