Safe box lock structure

Abstract

The utility model belongs to the technical field of safe deposit box locks, and discloses a safe deposit box lock structure, a lock body is configured on a box body of a safe deposit box, and the lock body comprises a fixed support fixedly connected to the box body; the door holder assembly comprises a connecting bracket and a door holder; the connecting bracket is rotationally connected with the fixed bracket through a connecting rod; the safe box has the advantages that the main lock component needs to be unlocked firstly to enable the lock cylinder and the lock pin to rotate, the lock pin is separated from the lock tongue, then the auxiliary lock component can be unlocked, that is, the button is pressed down to enable the plunger latch to rotate, and then the lock tongue is driven to be separated from the lock opening; therefore, the door holder can be taken out of the lock groove to achieve the unlocking function, the main lock component needs to be unlocked firstly and then the auxiliary lock component can be unlocked when the safe box is unlocked, two steps are needed for unlocking, and the situation of misoperation is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of safe locks, and particularly relates to a safe lock structure. Background Art

[0002] A safe is a special kind of luggage. According to its function, it is mainly divided into fireproof safes, anti-theft safes, anti-magnetic safes, fireproof and anti-magnetic safes and waterproof safes, etc. For a safe, in addition to the box itself, the most important thing is the lock structure on the box. The safe lock ensures the safety of the safe and prevents the items in the safe from being stolen.

[0003] After searching, one of the Chinese invention patents (application publication number: CN110821304A) provides a safe with a spring lock and a key locker, including: a box body, a cover body hinged to the box body, a panel assembly arranged on the cover body, and a door catch assembly arranged on the box body. The panel assembly is provided with a keyboard and a lock slot. The door catch assembly includes a spring lock assembly, which includes a door catch, a door catch lever and a lock scale plate; a lock plate is provided above the door catch to lock the door catch with the lock slot. The door catch assembly also includes an electric unlocking device and a mechanical unlocking device; the electric unlocking device is connected to the lock scale plate and controlled by the keyboard. After receiving the electrical signal generated by the keyboard, the lock scale plate is pulled to separate it from the door catch and open the safe; the mechanical unlocking device includes a lock core, and the rear end of the lock core is provided with a lock plate, and the lock plate is provided below the lock scale plate to move the lock scale plate.

[0004] It can be seen from the above-mentioned prior art that the advantage of the prior art is that it can realize electric unlocking and mechanical unlocking, but the disadvantage is that no matter which unlocking method is used, there is only one unlocking procedure, which leads to the possibility of misoperation. Therefore, when valuables or confidential items need to be placed, a luggage lock structure with higher security and anti-mislocking function is needed. Utility Model Content

[0005] The purpose of the utility model is to solve the above problems. The utility model provides a safe lock structure, which has the advantages of preventing luggage from being misunderstood and having higher luggage safety.

[0006] To achieve the above object, the utility model provides the following technical solution: comprising a lock body, the lock body is arranged on the box body of the safe, and the lock body comprises:

[0007] A fixing bracket, the fixing bracket is fixedly connected to the box body;

[0008] A door buckle assembly, the door buckle assembly comprises a connecting bracket and a door buckle;

[0009] The connecting bracket is rotatably connected to the fixed bracket via a connecting rod;

[0010] The door buckle is rotatably connected to the connecting bracket, the cover of the safe is provided with a lock slot, the door buckle is provided with a lock sheet corresponding to the lock slot, and the lock sheet is used to make the door buckle engage with the lock slot;

[0011] A secondary lock component, the secondary lock component includes a latch and a button, the middle portion of the latch is rotatably connected to the connecting bracket through the connecting shaft, one end of the latch is provided with a lock tongue, the other end of the latch is connected to the button, the fixed bracket is provided with the lock port buckled with the lock tongue, and the door buckle is provided with a button hole corresponding to the button;

[0012] The main lock component includes a lock core and a lock pin, wherein the lock core is arranged on the door buckle, the lock pin is connected to the lock core, the lock pin is limitedly matched with the lock tongue, and the lock pin is used to limit the lock tongue from disengaging from the lock port.

[0013] Preferably, a first torsion spring is sleeved on the outside of the connecting rod, and the first torsion spring is arranged between the connecting bracket and the fixed bracket. The first torsion spring can make the door catch always have a tendency to disengage from the lock slot.

[0014] Preferably, a second torsion spring is sleeved on the outside of the connecting shaft, and the second torsion spring is arranged between the connecting bracket and the lock latch. The second torsion spring can make the lock tongue on the lock latch always have a tendency to engage with the lock port.

[0015] Preferably, the lock tongue is provided with a locking groove for the lock pin to be inserted into and cooperate with.

[0016] Preferably, the box cover is provided with a box cover fixing piece, and the locking groove is arranged on the box cover fixing piece.

[0017] Preferably, the box body is provided with a box body fixing piece, and the fixing bracket is fixedly mounted on the box body fixing piece.

[0018] Preferably, a handle is movably provided on the box body, and a storage groove for storing the handle is also provided on the box body.

[0019] Preferably, the upper portion of the connecting bracket is rotatably connected to the fixed bracket via the connecting rod, and the lower portion of the connecting bracket is rotatably connected to the door catch.

[0020] Preferably, the fixing bracket is provided with an avoidance groove for the connection bracket to move.

[0021] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0022] The utility model provides a safe lock structure, which requires first unlocking the main lock component to rotate the lock core and the lock pin, so that the lock pin and the lock tongue are disengaged, thereby unlocking the secondary lock component, that is, pressing a button to rotate the lock latch and then drive the lock tongue and the lock mouth to disengage, so that the door catch can be taken out of the lock slot to achieve the unlocking function. Therefore, when unlocking the safe, it is necessary to unlock the main lock component first and then the secondary lock component. Unlocking requires two steps, so there will be no misoperation and the safety is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0024] Figure 2 It is a three-dimensional structural schematic diagram of the box cover fixing member of the utility model;

[0025] Figure 3 It is a partially exploded three-dimensional structural schematic diagram of the lock structure of the utility model;

[0026] Figure 4 It is a schematic diagram of the exploded three-dimensional structure of the lock structure of the utility model;

[0027] Figure 5 This is a schematic diagram of the main structure of the utility model;

[0028] Figure 6 for Figure 5 A schematic diagram of the cross-sectional structure of BB;

[0029] Figure 7 for Figure 3 Schematic diagram of the enlarged structure of A;

[0030] Figure 8 It is a three-dimensional structural schematic diagram of the button of the utility model;

[0031] Fig. 9 It is a three-dimensional structural schematic diagram of the knob of the utility model;

[0032] Fig.10 It is a three-dimensional structural schematic diagram of the fixed bracket, the connecting rod and the first torsion spring of the utility model.

[0033] Description of the drawings: 11. Box body; 12. Box cover; 21. Box body fixing piece; 22. Box cover fixing piece; 220. Raised portion; 221. Lock slot; 30. Lock core; 31. Knob; 311. Lock pin; 32. Button; 321. Lock latch; 322. Slot; 323. Lock tongue; 324. Positioning slot; 33. Door catch; 331. Lock plate; 34. Connecting bracket; 35. Connecting shaft; 36. Fixed bracket; 361. Lock mouth; 362. Limiting slot; 363. Avoiding slot; 37. Connecting rod; 38. First torsion spring; 4. Handle; 5. Second torsion spring. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] like Figure 1-Figure 10 As shown, a safe lock structure includes a lock body, which is arranged on a box body 11 of the safe, and the lock body includes:

[0036] A fixing bracket 36, the fixing bracket 36 is fixedly connected to the box body 11, specifically, the box body 11 is equipped with a box body fixing member 21, and the fixing bracket 36 is fixedly connected to the box body fixing member 21;

[0037] A door buckle assembly, the door buckle assembly includes a connecting bracket 34 and a door buckle 33;

[0038] The connecting bracket 34 is rotatably connected to the fixed bracket 36 via a connecting rod 37;

[0039] The door catch 33 is rotatably connected to the connecting bracket 34. Specifically, the upper part of the connecting bracket 34 is rotatably connected to the fixing bracket 36 through the connecting rod 37, and the lower part of the connecting bracket 34 is rotatably connected to the door catch 33, so that the connecting bracket 34 and the door catch 33 form a lever-type structure. The box cover 12 of the safe is provided with a lock groove 221. Specifically, the box cover 12 is equipped with a box cover fixing member 22. The lock groove 221 is provided on the box cover fixing member 22. The door catch 33 is provided with a lock piece 331 corresponding to the lock groove 221. The lock piece 331 is used to make the door catch 33 buckle with the lock groove 221. In addition, the box cover fixing member 22 also has a protrusion 220, and the lock groove 221 is formed between the protrusion 220 and the box cover fixing member 22.

[0040] Preferably, a first torsion spring 38 is sleeved on the outside of the connecting rod 37, and the first torsion spring 38 is disposed between the connecting bracket 34 and the fixing bracket 36, and the first torsion spring 38 can make the door catch 33 always have a tendency to escape from the lock slot 221;

[0041] A secondary lock component, the secondary lock component includes a latch 321 and a button 32. The middle part of the latch 321 is rotatably connected to the connecting bracket 34 through a connecting shaft 35. One end of the latch 321 is provided with a lock tongue 323. The other end of the latch 321 is connected to the button 32. The fixing bracket 36 is provided with a lock hole 361 that is buckled with the lock tongue 323. The door buckle 33 is provided with a button hole corresponding to the button 32.

[0042] The main lock component includes a lock core 30 and a lock pin 311. The lock core 30 can be either a mechanical lock core or an electronic lock core. The lock core 30 is arranged on the door buckle 33. The lock pin 311 is connected to the lock core 30. The lock pin 311 is limitedly matched with the lock tongue 323. The lock pin 311 is used to limit the lock tongue 323 from disengaging from the lock port 361.

[0043] The fixed bracket 36 is provided with a limiting groove 362, one end of the first torsion spring 38 is abutted in the limiting groove 362, and the other end of the first torsion spring 38 is abutted on the connecting bracket 34. The first torsion spring 38 can make the door buckle 33 always have a tendency to disengage from the lock groove 221. When in a locked state, the first torsion spring 38 is twisted to store elastic potential energy. The button 32 is movably mounted on the periphery of the connecting shaft 35, and the lock tongue 323 at the bottom of the button 32 is snap-fitted with the fixed bracket 36. The door buckle 33 is also provided with a knob 31 for adjusting the locking and movement of the button 32. The button 32 is located between the fixed bracket 36 and the knob 31, and the lock core 30 is arranged in the knob 31. The lock core 30 is inserted by using a key, and then the lock core 30 is rotated to drive the knob 31 and the lock pin 311 to rotate.

[0044] When in the locked state, the locking tongue 323 is located in the locking opening 361 , so the connecting bracket 34 cannot move to the side away from the fixing bracket 36 .

[0045] The bottom of the lock tongue 323 is provided with a locking groove 324 that cooperates with the lock pin 311. When in the locked state, the lock pin 311 abuts and cooperates with the locking groove 324, so the lock latch 321 cannot swing around the axis of the connecting shaft 35. When in the unlocked state, the lock cylinder 30 and the knob 31 rotate to make the lock pin 311 move out of the locking groove 324. At this time, the lock latch 321 can swing around the axis of the connecting shaft 35, so that the lock tongue 323 can move out of the lock port 361. At this time, the first torsion spring 38 releases the elastic potential energy, thereby allowing the connecting bracket 34 to rotate around the axis of the connecting rod 37, and then the door buckle 33 rotates around the axis of the connecting rod 37 at the same time, thereby achieving unlocking.

[0046] The latch 321 has a slot 322, in which a second torsion spring 5 for resetting the button 32 is arranged. The second torsion spring 5 is arranged between the connecting bracket 34 and the slot 322, and the second torsion spring 5 is sleeved on the outer periphery of the connecting shaft 35. The second torsion spring 5 can make the locking tongue 323 on the latch 321 always have a tendency to engage with the lock port 361.

[0047] A handle 4 is movably provided on the box fixing member 21 , and a storage slot for storing the handle 4 is also provided on the box fixing member 21 , so that the safe is more convenient to take.

[0048] The fixing bracket 36 is provided with an avoidance groove 363 for the connection bracket 34 to move, so that the connection bracket 34 will not be blocked by the fixing bracket 36 when it moves.

[0049] When the door catch 33 is connected with the lock slot 221 , the lock latch 321 , the lock tongue 323 , the connecting bracket 34 , the connecting shaft 35 , the fixing bracket 36 , the connecting rod 37 , the first torsion spring 38 and the second torsion spring 5 are all hidden in the door catch 33 .

[0050] The specific operation when the safe needs to be locked is as follows: first rotate the lock cylinder 30, then match the lock plate 331 with the lock slot 221, and manually press the door catch 33, so that the door catch 33 and the connecting bracket 34 swing around the connecting rod 37 to the side close to the fixed bracket 36, and then the lock tongue 323 enters the lock port 361. At this time, the lock cylinder 30 is rotated in the opposite direction, thereby driving the knob 31 and the lock pin 311 to rotate, so that the lock pin 311 moves to the locking slot 324, so that the button 32 is locked and cannot move, thereby locking the lock tongue 323 and the lock port 361, so that the connecting bracket 34 and the door catch 33 cannot move, thereby realizing the locking function.

[0051] The specific operation when the safe needs to be unlocked is as follows: first, insert the key to rotate the lock cylinder 30, which drives the knob 31 and the lock pin 311 to rotate, so that the lock pin 311 moves out of the positioning groove 324, so that the button 32 can swing around the axis of the connecting shaft 35. At this time, press the button 32, and the lock latch 321 rotates around the axis of the connecting shaft 35, thereby driving the lock tongue 323 to rotate around the axis of the connecting shaft 35, so that the lock tongue 323 moves out of the lock port 361. At this time, the first torsion spring 38 releases the elastic potential energy, pushing the connecting bracket 34 to swing around the connecting rod 37, thereby driving the door buckle 33 to move. At this time, the lock plate 331 of the door buckle 33 is disengaged from the lock slot 221, thereby realizing the unlocking function. Therefore, two steps need to be completed to achieve unlocking, so that misoperation will not occur.

[0052] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A safe lock structure, comprising a lock body, the lock body being arranged on a safe box (11), characterized in that: The lock body includes: A fixed bracket (36), the fixed bracket (36) being fixedly connected to the box body (11); A door catch assembly, the door catch assembly comprising a connecting bracket (34) and a door catch (33); The connecting bracket (34) is rotatably connected to the fixed bracket (36) via a connecting rod (37); The door catch (33) is rotatably connected to the connecting bracket (34); the cover (12) of the safe is provided with a lock slot (221); the door catch (33) is provided with a lock plate (331) corresponding to the lock slot (221); the lock plate (331) is used to make the door catch (33) engage with the lock slot (221); A secondary lock component, the secondary lock component comprising a latch (321) and a button (32), the middle portion of the latch (321) being rotatably connected to the connecting bracket (34) via a connecting shaft (35), one end of the latch (321) being provided with a lock tongue (323), the other end of the latch (321) being connected to the button (32), the fixing bracket (36) being provided with a lock opening (361) engaged with the lock tongue (323), and the door buckle (33) being provided with a button hole corresponding to the button (32); A main lock component, the main lock component comprises a lock core (30) and a lock pin (311), the lock core (30) is arranged on the door catch (33), the lock pin (311) is connected to the lock core (30), the lock pin (311) and the lock tongue (323) are limitedly matched, and the lock pin (311) is used to limit the lock tongue (323) from being separated from the lock port (361).

2. A safe lock structure according to claim 1, characterized in that: The connecting rod (37) is sleeved with a first torsion spring (38) on its exterior. The first torsion spring (38) is disposed between the connecting bracket (34) and the fixing bracket (36). The first torsion spring (38) can ensure that the door catch (33) always has a tendency to disengage from the locking slot (221).

3. A safe lock structure according to claim 1, characterized in that: The connecting shaft (35) is sleeved with a second torsion spring (5) on the outside. The second torsion spring (5) is arranged between the connecting bracket (34) and the lock latch (321). The second torsion spring (5) can make the lock tongue (323) on the lock latch (321) always have a tendency to engage with the lock port (361).

4. A safe lock structure according to claim 1, characterized in that: The lock tongue (323) is provided with a locking groove (324) for the lock pin (311) to be inserted and matched.

5. A safe lock structure according to claim 1, characterized in that: The box cover (12) is provided with a box cover fixing piece (22), and the locking groove (221) is arranged on the box cover fixing piece (22).

6. A safe lock structure according to claim 1 or 5, characterized in that: The box body (11) is provided with a box body fixing piece (21), and the fixing bracket (36) is fixedly mounted on the box body fixing piece (21).

7. A safe lock structure according to claim 6, characterized in that: A handle (4) is movably provided on the box fixing member (21), and a storage groove for storing the handle (4) is also provided on the box fixing member (21).

8. A safe lock structure according to claim 1, characterized in that: The upper portion of the connecting bracket (34) is rotatably connected to the fixed bracket (36) via the connecting rod (37), and the lower portion of the connecting bracket (34) is rotatably connected to the door catch (33).

9. A safe lock structure according to claim 1, characterized in that: The fixing bracket (36) is provided with an avoidance groove (363) for the connection bracket (34) to move.

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