Full-automatic driving structure of lock cylinder of security cabinet

Abstract

The utility model relates to a secret safe door lock technology field discloses a secret safe lock cylinder full -automatic drive structure, including the door board and the door lock structure of setting on the door board, the door lock structure includes the heaven bolt, the earth bolt, the main bolt and drive structure. Drive structure includes drive motor, gear set, rack B and sliding block B, sliding block B sets up on the slide rail of sliding block A, and drive motor is through gear set and rack B engagement and promotes sliding block B movement and drives sliding block A along the slide rail linear sliding, sliding block A one side promotes the telescopic main bolt, another side passes through side edge rack A and the transmission of heaven and earth bolt gear engagement, drives the coaxial rotation of the pressure rod and the rotating disc in lock cylinder structure, makes the heaven bolt and the earth bolt telescopic synchronously to the opposite direction, to realize the three -way multi -point linkage locking and unlocking of door body. Through multistage gear set transmission realizes the deceleration and the output stable of the increase moment, and the integrated installation and the guide structure of cooperation upper cover body and lower cover body, promote assembly consistency and locking reliability.

Description

Technical Field

[0001] This utility model relates to the field of safe lock technology, specifically to a fully automatic drive structure for safe lock cylinders. Background Technology

[0002] Safes are typically used to store classified documents, important materials, or valuables. To enhance their anti-theft, anti-pry, and anti-vandalism capabilities, current safe door lock structures generally employ a multi-point locking system, combining a main bolt with top and bottom bolts. This allows the door to be locked in multiple directions—laterally, upwards, and downwards—thus strengthening the door's resistance to prying and its overall impact resistance. To meet convenience requirements, some products further incorporate motor-driven or electronically controlled lock solutions to achieve automatic locking, automatic unlocking, and remote control functions.

[0003] However, existing multi-point locking electronic drive structures still have some shortcomings in practical applications. First, the transmission link of multi-point locking mechanisms is relatively long and greatly affected by assembly precision. The linkage between the main bolt and the top and bottom bolts is unstable, easily leading to asynchronous actions, incomplete positioning of a bolt, or incomplete retraction, resulting in decreased locking reliability and even causing door mislocking, false alarms, or inability to open or close normally. Second, in existing solutions, the drive unit often outputs directly with a single-stage gear / worm gear or eccentric structure, resulting in insufficient reduction torque or uneven output. When the bolt load fluctuates, the door is deformed by force, or frictional resistance increases, problems such as jamming, impact, increased noise, and motor overload can easily occur, affecting service life and safety. Third, multi-point locking mechanisms are usually composed of multiple scattered components installed in the door panel or lock body cavity, lacking a unified positioning benchmark and integrated load-bearing structure. The assembly process is complex, adjustments rely on experience, and a large number of components need to be disassembled for later maintenance and replacement, resulting in high maintenance costs. Fourth, insufficient coaxiality and guide support between the lock cylinder and the locking bolt linkage can easily lead to increased transmission clearance and aggravated wear, resulting in inconsistent extension and retraction strokes of the locking bolt and poor repeatability, thus affecting the multi-point locking effect and operational stability.

[0004] Therefore, there is an urgent need for a fully automatic drive solution for the lock cylinder of a safe that is compact in structure, stable in transmission, capable of reliable synchronous linkage between the main bolt and the top and bottom bolts, and easy to assemble and maintain, so as to improve the consistency of multi-point locking action, locking reliability and long-term safety and stability. Utility Model Content

[0005] This utility model provides a fully automatic drive structure for the lock cylinder of a safe.

[0006] The present invention solves the above-mentioned technical problems through the following technical solution:

[0007] The fully automatic drive structure for the lock cylinder of the safe includes a door panel for installing the lock structure, and a keyhole pre-set on the door panel; the lock structure includes a top bolt, a bottom bolt, a main bolt, and a drive structure for driving the top bolt, the bottom bolt, and the main bolt; the top bolt, the bottom bolt, and the main bolt are respectively oriented in three directions, and the main bolt is pushed by a sliding block A, and the top bolt and the bottom bolt are driven by a rack A set on the side of the sliding block A meshing with the top and bottom bolt gears;

[0008] The driving structure includes a drive motor, a gear set, and a sliding block B. The sliding block B is disposed on the slide rail of the sliding block A and slides along the slide rail. The output end of the drive motor is provided with a gear set, and the sliding block B and the gear set are respectively provided with a rack B. The sliding block B is moved by the meshing of the gear set and the rack B.

[0009] In a specific embodiment, the drive structure further includes an upper cover and a lower cover, on which the drive motor, gear set, sliding block A and sliding block B are mounted. The cover structure is provided with corresponding mounting positions, and the lower cover is also provided with a slide for sliding block A to slide.

[0010] In a specific embodiment, the gear set includes a first gear set, a second gear set, and a third gear set, which mesh sequentially for transmission, and the third gear set meshes with the rack B for transmission.

[0011] In a specific embodiment, the first gear set includes a vertical needle gear and a reduction needle gear that rotate coaxially. The output end of the drive motor meshes with the vertical needle gear, and the reduction needle gear drives the transmission to the second gear set. Both the second gear set and the third gear set are provided with reduction gears, and the reduction is achieved through the first gear set, the second gear set, and the third gear set.

[0012] In a specific embodiment, the slide rail of the sliding block A has a spring mounting position in the rear half for mounting a compensation spring; the compensation spring is arranged along the moving direction of the sliding block B, and the compensation spring is sleeved between the sliding block B and the slide rail.

[0013] In a specific embodiment, a lock cylinder structure is pre-installed in the keyhole. The lock cylinder structure includes a top and bottom bolt gear, a sleeve, a pressure rod, a lower base, and an upper base. The upper base and the lower base are fixed by bolts, and a through hole for inserting the pressure rod is provided between the upper base and the lower base. A stepped platform is provided inside the lower base, and the sleeve is fitted onto the lower stepped platform. The pressure rod rotates coaxially with the top and bottom bolt gear.

[0014] In a specific embodiment, the top bolt and the bottom bolt are hinged to the turntable. The turntable is located at the end of the pressure rod and rotates coaxially with the gears of the top and bottom bolts. The top bolt and the bottom bolt are respectively located at one end of the turntable. When the turntable rotates, the top bolt and the bottom bolt move to the sides respectively.

[0015] The fully automatic drive structure of the safe lock cylinder described in this application forms a linear drive link through "drive motor - gear set - rack B - sliding block B - sliding block A". Sliding block A directly pushes the main bolt on one hand, and on the other hand, it engages with the top and bottom bolts via the side rack A, achieving synchronous linkage between the main bolt and the top / bottom bolts. This creates multi-point locking in three directions of the door, significantly improving the locking coverage and anti-pry security. Simultaneously, the gear set uses multi-stage (first, second, and third gear sets) sequential meshing transmission, with the third gear set driving rack B. This facilitates transmission speed reduction and torque increase, as well as stable output, making the drive process smoother, locking / unlocking more reliable, and reducing... Low risk of jamming and impact; in addition, the upper and lower covers provide corresponding mounting positions for the drive motor, gear set, and sliding block A / sliding block B, and integrate the slide rail structure, so that the transmission components are assembled and positioned in a consistent manner, the structure is more compact, and it is easy to assemble and maintain in a modular manner; furthermore, the lock cylinder structure in the keyhole is fixed by the upper / lower base bolts, the stepped platform supports and positions the sleeve, and the pressure rod and the top and bottom bolts are set coaxially, and in conjunction with the turntable hinge, it drives the top and bottom bolts to move to both sides, which helps to ensure the coaxiality of rotation transmission and the consistency of movement, improve the synchronization and repeatability of the extension and repositioning of the top and bottom bolts, and thus achieve the fully automatic, linkage, multi-point, and highly reliable locking effect of the safe door lock. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0017] Figure 1 The diagram shown is a schematic diagram of the overall structure (front) of the fully automatic drive structure of the lock cylinder of the safe.

[0018] Figure 2 The diagram shown is a schematic diagram of the overall structure (back side) of the fully automatic drive structure for the lock cylinder of the safe.

[0019] Figure 3 The diagram shown is a schematic of the overall structure of the fully automatic drive structure of the lock cylinder of the safe (back side 2).

[0020] Figure 4 The diagram shown is an exploded view of the drive structure of the fully automatic drive system for the lock cylinder of a safe. Figure 1 ;

[0021] Figure 5 The diagram shown is an exploded view of the drive structure of the fully automatic drive system for the lock cylinder of a safe. Figure 2 ;

[0022] Figure 6 The diagram shown is an exploded view of the lock cylinder structure of a fully automatic drive system for a safe. Figure 1 ;

[0023] Figure 7 The diagram shown is an exploded view of the lock cylinder structure and drive structure of the fully automatic drive system for the safe lock cylinder.

[0024] Figure 8 The diagram shown is a rear structural schematic of the fully automatic drive structure of the lock cylinder of the safe (with the door panel removed).

[0025] Figure 9 The diagram shown is an exploded view of the lock cylinder structure of a fully automatic drive system for a safe. Figure 2 . Detailed Implementation

[0026] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] The following description, in conjunction with the accompanying drawings, provides a specific embodiment of the "fully automatic drive structure for lock cylinder of safe" of this utility model, but the utility model is not limited to this embodiment.

[0028] Example 1

[0029] This embodiment provides a fully automatic drive structure for a safe lock cylinder, used to install on the door of a safe to achieve synchronous locking of the main bolt and the top and bottom bolts. The structure includes a door panel 1, with a keyhole 2 pre-set on the door panel 1, and a door lock structure 3 installed on the inner side of the door panel 1.

[0030] The door lock structure 3 includes a top bolt 4, a bottom bolt 5, a main bolt 6, and a drive structure 7. The top bolt 4 extends upward along the door panel 1 and engages with the lock hole at the top of the cabinet. The bottom bolt 5 extends downward along the door panel 1 and engages with the lock hole at the bottom of the cabinet. The main bolt 6 extends laterally along the door panel 1 and engages with the lock hole on the side of the cabinet, thus forming a multi-point locking system in three directions.

[0031] To achieve synchronous driving of the aforementioned multi-point locking, the door lock structure 3 is equipped with a sliding block A8, which can move linearly in a preset direction. The main bolt 6 is linked to the sliding block A8. When the sliding block A8 moves in the locking direction, it pushes the main bolt 6 outward; when the sliding block A8 retracts in the unlocking direction, the main bolt 6 retracts accordingly. A rack A9 is provided on the side of the sliding block A8. The rack A9 meshes with the top and bottom bolt gears 16 in the lock cylinder structure to convert the linear movement of the sliding block A8 into the rotation of the top and bottom bolt gears 16, thereby driving the top bolt 4 and the bottom bolt 5 to move synchronously. The main bolt can lock the door. When the door is relatively high or a higher level of security is required, in addition to the main bolt, top and bottom bolts are added, so that there are locking points in three directions, thus increasing security.

[0032] The drive structure 7 includes a drive motor 10, a gear set 11, and a sliding block B12. The sliding block B12 is mounted on the slide rail 13 of the sliding block A8, allowing it to slide along the slide rail 13 and apply a pushing force to the sliding block A8. The output end of the drive motor 10 is connected to the gear set 11. A rack B14 is positioned corresponding to the sliding block B12 and the gear set 11, meshing with the gear set 11 for transmission. When the drive motor 10 rotates, the output from the gear set 11 drives the rack B14 to make a linear displacement, thereby pushing the sliding block B12 to move along the slide rail 13. When the sliding block B12 moves the end of the sliding block A8, it also drives the sliding block A8 to move synchronously, thus realizing a linear drive link of "drive motor 10—gear set 11—rack B14—sliding block B12—sliding block A8".

[0033] The gear set includes a first gear set 111, a second gear set 112, and a third gear set 113. The first, second, and third gear sets 113 mesh and drive in sequence. The third gear set 113 meshes and drives the rack B14. The gear set is a reduction gear set used to convert the output power of the drive motor 10 into a driving force. It uses spur gear transmission. There is a certain resistance between the crown teeth of the spur gear transmission, so the bolt is not easily retracted by external force vibration, and the spur teeth and crown teeth are not easily jammed.

[0034] In a specific embodiment, the first gear set 111 includes a vertical needle gear and a reduction needle gear that rotate coaxially. The output end of the drive motor 10 meshes with the vertical needle gear, and the reduction needle gear drives the transmission to the second gear set 112. The second gear set 112 and the third gear set 113 are both provided with reduction gears, and the reduction is achieved through the first gear set 111, the second gear set 112 and the third gear set 113.

[0035] In a specific embodiment, the slide rail 13 of the sliding block A8 has a spring mounting position in the rear half for mounting a compensation spring 131; the compensation spring 131 is arranged along the moving direction of the sliding block B12 and is sleeved between the sliding block B12 and the slide rail 13.

[0036] When the gear pushes the latch into place, the motor will continue to push forward when the power is high. In order to protect the motor and circuit board chips from damage caused by the surge voltage, a compression spring is used to buffer the movement, thereby avoiding damage to the motor circuit. The stroke will change when the voltage is high and low. This spring can also solve the problem of stroke difference.

[0037] In this embodiment, the drive structure 7 further includes an upper cover 15 and a lower cover 16, in which the drive motor 10, gear set 11, sliding block A8, and sliding block B12 are installed to form an integrated lock module. The upper cover 15 and lower cover 16 are respectively provided with mounting positions that match the drive motor 10, gear set 11, sliding block A8, and sliding block B12, to achieve positioning and assembly and improve the overall structural compactness. The lower cover 16 forms the slide rail 13, on which the sliding block A8 slides guided, thereby ensuring consistent transmission direction and reducing the risk of off-center jamming.

[0038] In this embodiment, the gear set 11 includes a first gear set 111, a second gear set 112, and a third gear set 113. The first gear set 111, the second gear set 112, and the third gear set 113 mesh and transmit power sequentially. The third gear set 113 meshes and transmits power with the rack B14. Multi-stage meshing transmission achieves deceleration and torque increase, as well as smooth output, which helps maintain reliable drive under conditions such as changes in door force and frictional resistance.

[0039] A lock cylinder structure 18 is pre-installed within the keyhole 2. The lock cylinder structure 18 includes a top and bottom bolt gear 19, a sleeve 20, a pressure rod 21, a lower base 22, and an upper base 23. The upper base 23 and the lower base 22 are fixedly connected by bolts 24. A through hole 25 is provided between the upper base 23 and the lower base 22 for the pressure rod 21 to be inserted. A stepped platform 26 is provided inside the lower base 22. The sleeve 20 is fitted onto the lower stepped platform of the lower base 22 to provide support and positioning for the lock cylinder structure 18. The pressure rod 21 is coaxially connected to the top and bottom bolt gear 19 and rotates synchronously with the top and bottom bolt gear 19, so that the rotation of the top and bottom bolt gear 19 can be stably transmitted to the pressure rod 21.

[0040] In this embodiment, the upper bolt 4 and the lower bolt 5 are hinged to the turntable 28, which is located at the end of the pressure rod 21 and rotates coaxially with the upper and lower bolt gear 19. The upper bolt 4 and the lower bolt 5 are respectively located at corresponding positions on both sides of the turntable 28. When the turntable 28 rotates with the pressure rod 21, the upper bolt 4 and the lower bolt 5 extend or retract in opposite directions under the constraint of the hinge, realizing the synchronous extension and retraction of the upper bolt 4 and the lower bolt 5 in opposite directions.

[0041] The working process of the above structure is as follows: When the drive motor 10 rotates in the forward direction, the gear set 11 outputs through the first gear set 111, the second gear set 112, and the third gear set 113 to drive the rack B14 to move linearly, which in turn drives the sliding block B12 to push the sliding block A8 to move in the locking direction. The sliding block A8 pushes the main bolt 6 to extend to complete the lateral locking, and at the same time drives the top and bottom bolt gears 19 to rotate through the rack A9. The top and bottom bolt gears 19 drive the pressure rod 21 and the turntable 28 to rotate, so that the top bolt 4 and the bottom bolt 5 extend upward and downward respectively to complete the upper and lower locking, thereby realizing three-way multi-point synchronous locking. When driven in the reverse direction, the sliding block A8 retracts, the main bolt 6 retracts, the top and bottom bolt gears 19 rotate in the reverse direction to drive the turntable 28 to return to its original position, and the top bolt 4 and the bottom bolt 5 retract synchronously to achieve automatic unlocking. Through the above linkage, the consistency of multi-point locking action and locking reliability can be improved, and modular assembly and maintenance can be facilitated.

[0042] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to in the method section.

[0043] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fully automatic drive structure for a safe lock cylinder, comprising a door panel for installing the lock structure, and a keyhole pre-drilled on the door panel; characterized in that: The door lock structure includes a top bolt, a bottom bolt, a main bolt, and a drive structure for driving the top bolt, the bottom bolt, and the main bolt; the top bolt, the bottom bolt, and the main bolt are respectively oriented in three directions, and the main bolt is pushed by a sliding block A and the top bolt and the bottom bolt are driven by a gear meshing between a rack A located on the side of the sliding block A and the gear meshing between the top bolt and the bottom bolt. The driving structure includes a drive motor, a gear set, and a sliding block B. The sliding block B is disposed on the slide rail of the sliding block A and slides along the slide rail. The output end of the drive motor is provided with a gear set, and the sliding block B and the gear set are respectively provided with a rack B. The sliding block B is moved by the meshing of the gear set and the rack B.

2. The fully automatic drive structure according to claim 1, characterized in that, The drive structure also includes an upper cover and a lower cover. The drive motor, gear set, sliding block A and sliding block B are installed on the upper cover and the lower cover. The cover structure is provided with corresponding mounting positions, and the lower cover is also provided with a slide for sliding block A to slide.

3. The fully automatic drive structure according to claim 2, characterized in that, The gear set includes a first gear set, a second gear set, and a third gear set. The first, second, and third gear sets mesh and drive in sequence, and the third gear set meshes and drives the rack B.

4. The fully automatic drive structure according to claim 3, characterized in that, The first gear set includes a vertical needle gear and a reduction needle gear that rotate coaxially. The output end of the drive motor meshes with the vertical needle gear, and the reduction needle gear drives the transmission to the second gear set. Both the second gear set and the third gear set are equipped with reduction gears, and the reduction is achieved through the first gear set, the second gear set, and the third gear set.

5. The fully automatic drive structure according to claim 1, characterized in that, The slide rail of the sliding block A has a spring mounting position in the rear half for installing a compensation spring; the compensation spring is set along the moving direction of the sliding block B and is sleeved between the sliding block B and the slide rail.

6. The fully automatic drive structure according to claim 1, characterized in that, The keyhole is pre-installed with a lock cylinder structure, which includes a top and bottom bolt gear, a sleeve, a pressure rod, a lower base, and an upper base. The upper base and the lower base are fixed by bolts, and a through hole for inserting the pressure rod is provided between the upper base and the lower base. The lower base has a stepped platform inside, and the sleeve is fitted onto the lower stepped platform. The pressure rod rotates coaxially with the top and bottom bolt gear.

7. The fully automatic drive structure according to claim 6, characterized in that, The top bolt and the bottom bolt are hinged to the turntable. The turntable is located at the end of the pressure rod and rotates coaxially with the gears of the top and bottom bolts. The top bolt and the bottom bolt are respectively located at one end of the turntable. When the turntable rotates, the top bolt and the bottom bolt move to the sides respectively.

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