A safe with improved strength of the unlocking mechanism

Abstract

The utility model discloses a safe of improving the strength of unlocking mechanism, and the cabinet door and / or front panel are provided with rotating hole and at least one arc limit slot, the arc limit slot is arranged in the periphery of rotating hole and is coaxial with rotating hole, the inside surface of knob is shaped with rotating column and at least one limit lug, and the rotating column is rotatably installed in the rotating hole and is fixedly connected with the push piece, the limit lug is slidably installed in the arc limit slot and is fixedly connected with the push piece, and the limit lug is limitedly matched with the arc limit slot. The push piece and the knob are connected through the rotating column and the limit lug respectively to form a multi-point connection structure, preventing the push piece and the knob from being separated, directly limiting the limit lug through the arc limit slot, dispersing the limiting stress point, improving the reliability and stability, the knob of integral type structure cancels the lock bar, simplifies the connection structure, simplifies the production process and reduces the cost.

Description

Technical Field

[0001] This utility model relates to the field of safe technology, and in particular to a safe with improved unlocking mechanism strength. Background Technology

[0002] Safes are cabinets used to store important items. Existing safes use electronic locks in conjunction with mechanical handles for locking and unlocking. When locking, the electronic lock limits the bolt to prevent it from retracting. When unlocking, the electronic lock releases, disengaging the bolt limit, and then the handle is rotated to retract the bolt. Traditional mechanical handles include a knob and a lever. The knob is connected to the lever via a locking rod, which is made of square or flat tubing. Rotating the knob rotates the locking rod, which in turn drives the lever, moving the bolt. In current technology, the knob and locking rod are typically connected and fixed using a die-cutting process or by inserting and screwing, a complex process involving many parts and high production costs. There is only one connection point between the locking rod and the knob, which needs to withstand significant force during operation. Over time, this connection point can break, resulting in poor reliability and stability. Furthermore, traditional safes do not directly limit the knob's movement; instead, they indirectly limit the knob's movement using the bolt's travel. However, since the knob is the driving source, this remote limiting method increases the force between the knob and the locking lever, raising the risk of breakage between them. Therefore, it is necessary to improve this method. Utility Model Content

[0003] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a safe that improves the strength of the unlocking mechanism, distributes the stress points of the knob, reduces the risk of breakage, improves reliability and stability, simplifies the connection structure between the knob and the lever, simplifies the production process, and reduces costs.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a safe with improved unlocking mechanism strength, comprising a cabinet body, a cabinet door, and a lock body. One side of the cabinet door is hinged to the cabinet body, and the lock body is disposed on the cabinet door. The lock body is equipped with an electronic lock and a mechanical locking mechanism. The electronic lock and the mechanical locking mechanism are mutually limiting and cooperating. The mechanical locking mechanism includes a knob, a paddle, a bolt slide, and at least one bolt post. The bolt post is fixedly installed on the bolt slide, the paddle is rotatably installed on the inner side of the cabinet door, the bolt slide is slidably installed on the inner side of the cabinet door, the bolt slide is provided with a drive groove, and the paddle is slidably connected to the drive groove. A front panel is provided on the outer side of the cabinet door, and the knob is rotatably installed on the front panel.

[0005] The cabinet door and / or front panel are provided with a rotating hole and at least one arc-shaped limiting groove. The arc-shaped limiting groove is located around the rotating hole and is coaxial with the rotating hole.

[0006] The inner side of the knob is formed with a rotating column and at least one limiting protrusion. The rotating column is rotatably installed in the rotating hole and fixedly connected to the lever. The limiting protrusion is slidably installed in the arc-shaped limiting groove and fixedly connected to the lever. The limiting protrusion and the arc-shaped limiting groove are in a limiting engagement.

[0007] In a further technical solution, both the cabinet door and the front panel are provided with a rotating hole and at least one arc-shaped limiting groove, and the rotating hole of the cabinet door and the rotating hole of the front panel are aligned in the axial direction.

[0008] The limiting protrusion includes a limiting rib and a limiting connecting post. The limiting rib is formed on the inner side of the knob, and the limiting connecting post is formed on the limiting rib.

[0009] The rotating column passes through the rotating holes in the front panel and the cabinet door in sequence and is fixedly connected to the lever. The limiting rib is slidably installed in the arc-shaped limiting groove of the front panel. The limiting connecting column passes through the arc-shaped limiting groove of the cabinet door and the front panel in sequence and is fixedly connected to the lever.

[0010] In the unlocked state, the limiting rib abuts against the first end of the arc-shaped limiting groove on the front panel, and the limiting connecting post abuts against the first end of the arc-shaped limiting groove on the cabinet door.

[0011] In the locked state, the limiting rib abuts against the second end of the arc-shaped limiting groove on the front panel, and the limiting connecting post abuts against the second end of the arc-shaped limiting groove on the cabinet door.

[0012] In a further technical solution, two arc-shaped limiting grooves are respectively opened on the cabinet door and the front panel. The two arc-shaped limiting grooves on the cabinet door and the front panel are symmetrically arranged along the corresponding rotating holes. The knob is provided with two limiting protrusions. The two limiting protrusions are symmetrically arranged along the rotating column. The limiting ribs of the two limiting protrusions are slidably installed on the two arc-shaped limiting grooves on the front panel. The limiting connecting posts of the two limiting protrusions pass through the two arc-shaped limiting grooves on the cabinet door and the front panel respectively and are fixedly connected to the lever.

[0013] In a further technical solution, the paddle has two eccentric connecting holes, and the mechanical locking mechanism is also provided with two limit connecting screws. The ends of the two limit connecting posts are respectively provided with threaded holes, and the two limit connecting screws pass through the two eccentric connecting holes and are threadedly connected to the threaded holes of the two limit connecting posts.

[0014] In a further technical solution, a D-shaped hole is provided in the center of the lever, and the cross-sectional shape of the rotating column is D-shaped, with the rotating column inserted into the D-shaped hole.

[0015] In a further technical solution, a bolt fixing bracket and a limiting mounting post are provided on the inner side of the cabinet door. The bolt fixing bracket has at least two bolt holes, and the bolt slide has at least two bolt posts. The two bolt posts are slidably installed in the two bolt holes respectively. The bolt slide has a limiting groove at the position corresponding to the limiting mounting post. The limiting mounting post is inserted into the limiting groove. In the unlocked state, the limiting mounting post abuts against the first end of the limiting groove. In the locked state, the limiting mounting post abuts against the second end of the limiting groove.

[0016] In a further technical solution, the bolt is fixedly installed on the side of the bolt carriage facing the bolt fixing frame, the limiting transverse groove is opened on the side of the bolt carriage away from the bolt fixing frame, and the end of the limiting mounting post is engaged with a limiting snap ring, which cooperates with the bolt carriage for limiting.

[0017] In a further technical solution, the electronic lock includes a PCB board, a key input component, and an electromagnetic lock. The key input component is located on the panel, the PCB board is fixedly installed on the inner side of the cabinet door, the key input component is electrically connected to the PCB board, the electromagnetic lock is fixedly installed on the inner side of the cabinet door and located between the PCB board and the door bolt carriage, the electromagnetic lock is provided with a locking tongue, the locking tongue is limited and cooperates with the door bolt carriage, and the PCB board is electrically connected to the electromagnetic lock.

[0018] In a further technical solution, a mechanical lock is also provided between the electronic lock and the mechanical locking mechanism. The mechanical lock includes a lock cylinder and a lock disc. One end of the lock cylinder is the input end and the other end is the output end. The input end of the lock cylinder is fixedly installed on the panel, the output end of the lock cylinder is fixedly installed on the cabinet door, and the lock disc is fixedly installed on the output end of the lock cylinder. The lock disc and the lock tongue are engaged in abutting cooperation.

[0019] In a further technical solution, the key input component includes a password input keyboard and / or a fingerprint collector, and the front panel is also provided with a power input socket, which is electrically connected to the PCB board.

[0020] The advantages of this invention compared to existing technologies are as follows: the lever and the knob are fixedly connected by a rotating column and a limiting protrusion, forming a multi-point connection structure. This avoids single-point force on the rotating column, preventing the lever and knob from separating and improving reliability and stability. During locking and unlocking, the arc-shaped limiting grooves on the front panel and cabinet door directly limit the limiting protrusion and the limiting connecting column simultaneously, dispersing the limiting force points and preventing knob limiting failure due to insufficient single-point limiting force, further preventing the lever and knob from separating. The rotating column and the limiting protrusion are integrally formed with the knob, creating an integrated knob structure. The knob is directly connected to the lever and then secured by limiting connecting screws, eliminating the need for a locking rod. This simplifies the connection structure between the knob and the lever, simplifies the manufacturing process, and reduces costs. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the lock body of this utility model;

[0024] Figure 3 This is an exploded view of the lock body and cabinet door of this utility model;

[0025] Figure 4 This is a schematic diagram of the knob of this utility model in the unlocked state;

[0026] Figure 5 This is a schematic diagram of the knob of this utility model in the locked state.

[0027] In the picture:

[0028] 1. Cabinet;

[0029] 2 cabinet doors, 23 door bolt fixing brackets, 231 door bolt holes, 24 limit mounting posts, 241 limit snap rings;

[0030] 3. Front panel;

[0031] 41 Knob, 411 Rotating column, 412 Limiting rib, 413 Limiting connecting column, 414 Threaded hole, 42 Paddle, 421 Eccentric connecting hole, 422 D-type hole, 43 Door bolt slide, 431 Drive slide groove, 432 Limiting transverse groove, 44 Bolt post, 45 Limiting connecting screw;

[0032] 51 PCB board, 52 key input component, 53 electromagnetic lock, 531 lock tongue;

[0033] 6 mechanical locks, 61 lock cylinders, 62 lock discs;

[0034] 7 power input sockets;

[0035] 81 Rotating hole, 82 Arc-shaped limiting groove. Detailed Implementation

[0036] The following are merely preferred embodiments of the present invention and do not limit the scope of protection of the present invention.

[0037] A safe with an enhanced unlocking mechanism, such as Figures 1 to 5As shown, the cabinet includes a cabinet body 1, a cabinet door 2, and a lock body. One side of the cabinet door 2 is hinged to the cabinet body 1. The lock body is located on the cabinet door 2 and is equipped with an electronic lock and a mechanical locking mechanism. The electronic lock and the mechanical locking mechanism are in a limiting cooperation. The mechanical locking mechanism includes a knob 41, a lever 42, a bolt slide 43, and at least one bolt 44. The bolt 44 is fixedly installed on the bolt slide 43. The lever 42 is rotatably installed on the inner side of the cabinet door 2. The bolt slide 43 is slidably installed on the inner side of the cabinet door 2. The bolt slide 43 is provided with a drive groove 431, and the lever 42 is slidably connected to the drive groove 431. The cabinet door 2 has a front panel 3 on its outer side. A knob 41 is rotatably mounted on the front panel 3. The cabinet door 2 and / or the front panel 3 have a rotating hole 81 and at least one arc-shaped limiting groove 82. The arc-shaped limiting groove 82 is located around the rotating hole 81 and is coaxial with the rotating hole 81. The inner side of the knob 41 has a rotating column 411 and at least one limiting protrusion. The rotating column 411 is rotatably mounted on the rotating hole 81 and is fixedly connected to the lever 42. The limiting protrusion is slidably mounted on the arc-shaped limiting groove 82 and is fixedly connected to the lever 42. The limiting protrusion and the arc-shaped limiting groove 82 are mutually limiting.

[0038] Traditional safes require a locking rod to connect the knob 41 and the lever 42. The locking rod is fixed to the knob 41 using a die-cutting process. This results in numerous parts, a complex structure, high manufacturing difficulty, and high cost. Furthermore, the locking rod is the only stress point between the knob 41 and the lever 42, which can easily lead to the knob 41 separating from the locking rod after prolonged use, causing a break in the connection between the knob 41 and the lever 42. This results in poor reliability and stability. In addition, traditional safes do not limit the movement of the knob 41, but rely on the sliding installation of the bolt carriage 43 for single-point indirect limiting. The limiting force of single-point limiting is small and concentrated, while the force between the knob 41 and the locking rod is large, resulting in a high risk of breakage. In contrast, the lever 42 and the knob 41 of this utility model are connected by rotating columns. The rotating column 411 and the limiting protrusion are fixedly connected to form a multi-point connection structure, which avoids the rotating column 411 being subjected to force at a single point, and prevents the lever 42 from separating from the knob 41, thereby improving reliability and stability. During the locking and unlocking process, the limiting protrusion is directly limited by the arc-shaped limiting groove 82, thereby dispersing the limiting force points and avoiding the failure of the knob 41 to limit due to insufficient limiting force at a single point, further preventing the lever 42 from separating from the knob 41. The rotating column 411 and the limiting protrusion are integrally formed with the knob 41 to form an integral structure of the knob 41. The knob 41 is directly connected to the lever 42 without the need for a locking rod, which simplifies the connection structure between the knob 41 and the lever 42, simplifies the production process, and reduces costs.

[0039] Specifically, both the cabinet door 2 and the front panel 3 are provided with a rotating hole 81 and at least one arc-shaped limiting groove 82. The rotating hole 81 of the cabinet door 2 and the rotating hole 81 of the front panel 3 are aligned axially. The limiting protrusion includes a limiting rib 412 and a limiting connecting post 413. The limiting rib 412 is formed on the inner side of the knob 41, and the limiting connecting post 413 is formed on the limiting rib 412. The rotating post 411 passes through the rotating hole 81 of the front panel 3 and the rotating hole 81 of the cabinet door 2 in sequence and is fixedly connected to the lever 42. The limiting rib 412 is slidably installed on the lever 42. The arc-shaped limiting groove 82 of the front panel 3 and the limiting connecting post 413 pass through the cabinet door 2 and the arc-shaped limiting groove 82 of the front panel 3 in sequence and are fixedly connected to the lever 42. In the unlocked state, the limiting rib 412 abuts against the first end of the arc-shaped limiting groove 82 of the front panel 3 and the limiting connecting post 413 abuts against the first end of the arc-shaped limiting groove 82 of the cabinet door 2. In the locked state, the limiting rib 412 abuts against the second end of the arc-shaped limiting groove 82 of the front panel 3 and the limiting connecting post 413 abuts against the second end of the arc-shaped limiting groove 82 of the cabinet door 2. The cabinet door 2 and the front panel 3 are respectively provided with a rotating hole 81 and an arc-shaped limiting groove 82. The two rotating holes 81 are connected to the rotating column 411 at the same time to improve the connection strength, prevent the rotating column 411 from shaking in the axial direction, and improve reliability and stability. The limiting rib 412 is limited by the arc-shaped limiting groove 82 of the cabinet door 2, and the limiting connecting column 413 is limited by the arc-shaped limiting groove 82 of the front panel 3, thereby increasing the limiting force points.

[0040] Specifically, cabinet door 2 and front panel 3 each have two arc-shaped limiting grooves 82. These grooves are symmetrically arranged along corresponding rotating holes 81. Knob 41 has two limiting protrusions symmetrically arranged along rotating columns 411. The limiting ribs 412 of the two protrusions are slidably installed in the two arc-shaped limiting grooves 82 of the front panel 3. The limiting connecting columns 413 of the two protrusions pass through the arc-shaped limiting grooves 82 of cabinet door 2 and front panel 3 respectively and are fixedly connected to the lever 42. The two arc-shaped limiting grooves 82 of cabinet door 2 and front panel 3, together with the two limiting protrusions, form limiting points, creating four limiting force points in both locked and unlocked states, thus forming multi-point limiting and further dispersing the limiting force.

[0041] Specifically, the length of the arc-shaped limiting groove 82 of the front panel 3 is greater than the length of the arc-shaped limiting groove 82 of the cabinet door 2, and the limiting connecting post 413 is located in the middle of the limiting rib 412. The limiting rib 412 consists of two limiting posts and a rib connecting the two limiting posts, which facilitates injection molding. The limiting rib 412 has a larger volume than the limiting connecting post 413, a larger connection area with the knob 41, and high structural strength, thereby dispersing the limiting pressure of the limiting connecting post 413. Even if one limiting connecting post 413 breaks, it can still be used normally, avoiding the situation where it cannot be unlocked.

[0042] Specifically, the lever 42 has two eccentric connecting holes 421, and the mechanical locking mechanism is also provided with two limiting connecting screws 45. The ends of the two limiting connecting posts 413 are respectively provided with threaded holes 414. The two limiting connecting screws 45 pass through the two eccentric connecting holes 421 and are threadedly connected to the threaded holes 414 of the two limiting connecting posts 413. The lever 42 and the limiting connecting posts 413 are further fixed by the limiting connecting screws 45. The limiting connecting screws 45 can also axially limit the lever 42, preventing the lever 42 from separating from the limiting connecting posts 413, improving reliability and stability. The connection structure is simple and low-cost. Furthermore, the limiting connecting screws 45 entering the threaded holes 414 can also improve the structural strength of the limiting connecting posts 413, preventing the limiting connecting posts 413 from breaking.

[0043] Specifically, a D-shaped hole 422 is provided in the center of the paddle 42, and the rotating post 411 has a D-shaped cross-section and is inserted into the D-shaped hole 422. The rotating post 411 is connected to the paddle 42 through the D-shaped hole 422, and together with the two limiting connecting posts 413, forms a three-point driving force to prevent the rotating post 411 and the two limiting connecting posts 413 from breaking, thereby improving reliability and stability and extending service life. The front panel 3 is provided with unlock and lock indicators. During assembly, the D-shaped hole 422 and the rotating post 411 enable quick positioning and installation, avoiding misalignment of the indicators and improving assembly efficiency.

[0044] Specifically, the inner side of the cabinet door 2 is provided with a bolt fixing bracket 23 and a limiting mounting post 24. The bolt fixing bracket 23 has at least two bolt holes 231, and the bolt slide 43 is provided with at least two bolt posts 44. The two bolt posts 44 are slidably installed in the two bolt holes 231 respectively. The bolt slide 43 has a limiting groove 432 at the position corresponding to the limiting mounting post 24. The limiting mounting post 24 is inserted into the limiting groove 432. In the unlocked state, the limiting mounting post 24 abuts against the first end of the limiting groove 432. In the locked state, the limiting mounting post 24 abuts against the second end of the limiting groove 432. The fifth limiting point is formed by the limiting transverse groove 432 and the limiting mounting post 24, so that both the knob 41 and the bolt slide 43 have independent limiting mechanisms, further dispersing the limiting force. One side of the bolt slide 43 is slidably installed with the bolt hole 231 through the bolt post 44, and the other side is slidably installed through the limiting transverse groove 432 and the limiting mounting post 24, thus forming a double guide structure, improving the movement stability of the bolt slide 43, preventing shaking, and eliminating the need for additional connecting devices to install the bolt slide 43. The structure is simple and the cost is low.

[0045] Specifically, the bolt is fixedly installed on the side of the bolt carriage 43 facing the bolt fixing bracket 23. A limiting transverse groove 432 is formed on the side of the bolt carriage 43 away from the bolt fixing bracket 23. A limiting spring 241 is engaged at the end of the limiting mounting post 24, and the limiting spring 241 engages with the bolt carriage 43 for limiting. The limiting spring 241 limits the bolt carriage 43 in the axial direction, preventing it from disengaging from the limiting mounting post 24, and facilitating assembly, disassembly, and maintenance.

[0046] Specifically, the electronic lock includes a PCB board 51, a key input component 52, and an electromagnetic lock 53. The key input component 52 is located on the panel, and the PCB board 51 is fixedly installed on the inner side of the cabinet door 2. The key input component 52 is electrically connected to the PCB board 51. The electromagnetic lock 53 is fixedly installed on the inner side of the cabinet door 2 and is located between the PCB board 51 and the bolt slide 43. The electromagnetic lock 53 is equipped with a latch 531, which engages with the bolt slide 43. The PCB board 51 is electrically connected to the electromagnetic lock 53. When a key is input through the key input component 52, the circuit on the PCB board 51 identifies and verifies the key. After the key passes verification, the electromagnetic lock 53 is powered on. When powered on, the electromagnetic lock 53 generates a magnetic field that attracts the latch 531 to retract, thereby avoiding the bolt slide 43. At this time, rotating the knob 41 drives the lever 42 to rotate, and the lever 42 moves the bolt slide 43, thereby causing the bolt 44 to retract and unlock.

[0047] Specifically, a mechanical lock 6 is also provided between the electronic lock and the mechanical locking mechanism. The mechanical lock 6 includes a lock cylinder 61 and a lock disc 62. One end of the lock cylinder 61 is the input end, and the other end is the output end. The input end of the lock cylinder 61 is fixedly installed on the panel, and the output end of the lock cylinder 61 is fixedly installed on the cabinet door 2. The lock disc 62 is fixedly installed on the output end of the lock cylinder 61, and the lock disc 62 abuts against the bolt 531. When the electronic lock malfunctions or loses power, the mechanical lock 6 is opened with a key, causing the lock disc 62 to rotate. The lock disc 62 presses against the bolt 531, thereby pushing the bolt 531 back to avoid the bolt slide 43 and unlock the door. This increases the mechanical opening method and avoids the inability to open the door due to malfunction.

[0048] Specifically, the key input component 52 includes a password input keyboard and / or a fingerprint scanner. The front panel 3 is also equipped with a power input socket 7, which is electrically connected to the PCB board 51. When the battery is depleted, an external power source is connected through the external power input socket 7 to form an external power supply, thus preventing the electronic lock from malfunctioning due to power outages.

[0049] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A safe with improved unlocking mechanism strength, comprising a cabinet body (1), a cabinet door (2), and a lock body, wherein one side of the cabinet door (2) is hinged to the cabinet body (1), the lock body is disposed on the cabinet door (2), the lock body is provided with an electronic lock and a mechanical locking mechanism, the electronic lock and the mechanical locking mechanism being mutually limit-fitted, the mechanical locking mechanism comprising a knob (41), a paddle (42), a bolt slide (43), and at least one bolt post (44), the bolt post (44) being fixedly installed on the bolt slide (43), the paddle (42) being rotatably installed on the inner side of the cabinet door (2), the bolt slide (43) being slidably installed on the inner side of the cabinet door (2), the bolt slide (43) being provided with a drive groove (431), the paddle (42) being slidably connected to the drive groove (431), a front panel (3) being provided on the outer side of the cabinet door (2), and the knob (41) being rotatably installed on the front panel (3), characterized in that: The cabinet door (2) and / or the front panel (3) are provided with a rotating hole (81) and at least one arc-shaped limiting groove (82). The arc-shaped limiting groove (82) is located on the periphery of the rotating hole (81) and is coaxial with the rotating hole (81). The inner side of the knob (41) is formed with a rotating column (411) and at least one limiting protrusion. The rotating column (411) is rotatably installed in the rotating hole (81) and fixedly connected to the paddle (42). The limiting protrusion is slidably installed in the arc-shaped limiting groove (82) and fixedly connected to the paddle (42). The limiting protrusion and the arc-shaped limiting groove (82) are in a limiting engagement.

2. A safe for improving the strength of the unlocking mechanism according to claim 1, characterized in that: Both the cabinet door (2) and the front panel (3) are provided with a rotating hole (81) and at least one arc-shaped limiting groove (82). The rotating hole (81) of the cabinet door (2) and the rotating hole (81) of the front panel (3) are aligned in the axial direction. The limiting protrusion includes a limiting rib (412) and a limiting connecting post (413). The limiting rib (412) is formed on the inner side of the knob (41), and the limiting connecting post (413) is formed on the limiting rib (412). The rotating column (411) passes through the rotating hole (81) of the front panel (3) and the rotating hole (81) of the cabinet door (2) in sequence and is fixedly connected to the lever (42). The limiting rib (412) is slidably installed in the arc-shaped limiting groove (82) of the front panel (3). The limiting connecting column (413) passes through the arc-shaped limiting groove (82) of the cabinet door (2) and the front panel (3) in sequence and is fixedly connected to the lever (42). In the unlocked state, the limiting rib (412) abuts against the first end of the arc-shaped limiting groove (82) of the front panel (3), and the limiting connecting post (413) abuts against the first end of the arc-shaped limiting groove (82) of the cabinet door (2). In the locked state, the limiting rib (412) abuts against the second end of the arc-shaped limiting groove (82) of the front panel (3), and the limiting connecting column (413) abuts against the second end of the arc-shaped limiting groove (82) of the cabinet door (2).

3. A safe for improving the strength of the unlocking mechanism according to claim 2, characterized in that: The cabinet door (2) and the front panel (3) are respectively provided with two arc-shaped limiting grooves (82). The two arc-shaped limiting grooves (82) of the cabinet door (2) and the front panel (3) are symmetrically arranged along the corresponding rotating holes (81). The knob (41) is provided with two limiting protrusions. The two limiting protrusions are symmetrically arranged along the rotating column (411). The limiting ribs (412) of the two limiting protrusions are slidably installed in the two arc-shaped limiting grooves (82) of the front panel (3). The limiting connecting columns (413) of the two limiting protrusions pass through the two arc-shaped limiting grooves (82) of the cabinet door (2) and the front panel (3) respectively and are fixedly connected to the lever (42).

4. A safe for improving the strength of the unlocking mechanism according to claim 3, characterized in that: The lever (42) has two eccentric connecting holes (421), and the mechanical locking mechanism is also provided with two limiting connecting screws (45). The ends of the two limiting connecting posts (413) are respectively provided with threaded holes (414). The two limiting connecting screws (45) pass through the two eccentric connecting holes (421) and are threadedly connected to the threaded holes (414) of the two limiting connecting posts (413).

5. A safe for improving the strength of the unlocking mechanism according to claim 1, characterized in that: The center of the paddle (42) has a D-shaped hole (422), and the cross-sectional shape of the rotating column (411) is D-shaped. The rotating column (411) is inserted into the D-shaped hole (422).

6. A safe for improving the strength of the unlocking mechanism according to claim 2, characterized in that: The inner side of the cabinet door (2) is provided with a bolt fixing bracket (23) and a limiting mounting post (24). The bolt fixing bracket (23) has at least two bolt holes (231). The bolt slide (43) is provided with at least two bolt posts (44). The two bolt posts (44) are slidably installed in the two bolt holes (231). The bolt slide (43) has a limiting groove (432) at the position corresponding to the limiting mounting post (24). The limiting mounting post (24) is inserted into the limiting groove (432). In the unlocked state, the limiting mounting post (24) and the first end of the limiting groove (432) abut against each other. In the locked state, the limiting mounting post (24) and the second end of the limiting groove (432) abut against each other.

7. A safe for improving the strength of the unlocking mechanism according to claim 6, characterized in that: The bolt is fixedly installed on the side of the bolt slide (43) facing the bolt fixing bracket (23). The limiting transverse groove (432) is opened on the side of the bolt slide (43) away from the bolt fixing bracket (23). The end of the limiting mounting post (24) is engaged with a limiting snap ring (241), and the limiting snap ring (241) cooperates with the bolt slide (43) for limiting.

8. A safe for improving the strength of the unlocking mechanism according to claim 1, characterized in that: The electronic lock includes a PCB board (51), a key input component (52), and an electromagnetic lock (53). The key input component (52) is disposed on the panel. The PCB board (51) is fixedly installed on the inner side of the cabinet door (2). The key input component (52) is electrically connected to the PCB board (51). The electromagnetic lock (53) is fixedly installed on the inner side of the cabinet door (2) and located between the PCB board (51) and the door bolt slide (43). The electromagnetic lock (53) is provided with a locking tongue (531). The locking tongue (531) is limited and cooperates with the door bolt slide (43). The PCB board (51) is electrically connected to the electromagnetic lock (53).

9. A safe for improving the strength of the unlocking mechanism according to claim 8, characterized in that: A mechanical lock (6) is also provided between the electronic lock and the mechanical locking mechanism. The mechanical lock (6) includes a lock cylinder (61) and a lock disc (62). One end of the lock cylinder (61) is an input end and the other end is an output end. The input end of the lock cylinder (61) is fixedly installed on the panel, and the output end of the lock cylinder (61) is fixedly installed on the cabinet door (2). The lock disc (62) is fixedly installed on the output end of the lock cylinder (61), and the lock disc (62) abuts against the lock tongue (531).

10. A safe for improving the strength of the unlocking mechanism according to claim 8, characterized in that: The key input component (52) includes a password input keyboard and / or a fingerprint collector. The front panel (3) is also provided with a power input socket (7), which is electrically connected to the PCB board (51).

Images