A lock body structure

Abstract

The application discloses a lock body structure of a password lock, relates to the technical field of safes, and comprises a lock frame, which has an outer side and an inner side opposite to the outer side; a retreat stop piece, which is rotationally arranged on the outer side; a lock tongue, which is rotationally arranged on the outer side and is located below the retreat stop piece, and a matching groove is formed in the lock tongue and matches a matching end; a lock closing lever, which is coaxially arranged on a second rotating assembly, and an extension part is arranged on the lock closing lever, the extension part is in contact with the lock tongue when the lock is closed, the lock closing lever synchronously drives the lock tongue to rotate to a locking position, and the matching end is clamped into the matching groove to be locked; and a motor, which is used for driving a motor lever, when the lock is opened, the motor lever is abutted against a transmission end, the retreat stop piece is synchronously rotated, the matching end is separated from the matching groove, and the lock is unlocked. The application adopts a front-mounted installation mode, saves the space of the box body, does not need any sensing device (the lock is closed by directly driving the lever by using the box body), and avoids the failure of closing the box.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of safe technology, in particular to a lock body structure of a password drawer. BACKGROUND

[0002] With the rapid improvement of living standards, more and more precious things are owned in the resident family, and the demand for safes is increasing. In order to meet the above needs, under the premise of considering aesthetics, a drawer type safe (i.e. password drawer) arranged in the cabinet body appears.

[0003] The password drawer is a simple type of safe, which is welcomed by the public because of its simple operation and easy integration with decoration and home decoration. However, the lock body used in the existing password drawer either borrows the lock body of the safe, which has high production cost and hidden danger of lock failure, or adopts a rear-mounted lock body, which occupies the space at the rear of the cabinet and thus reduces the effective space inside the password drawer. SUMMARY

[0004] The present application aims to overcome the shortcomings of the prior art and provide a lock body structure of a password drawer, which has low production cost, adopts a front-mounted installation method, saves cabinet space, does not require any sensing device (uses the cabinet to directly drive the lock lever to achieve locking), and avoids the situation of lock failure.

[0005] The purpose of the present application is achieved by the following technical scheme: the lock body structure of the password drawer comprises:

[0006] a lock holder having an outer side and an inner side opposite to the outer side;

[0007] a retreat stop plate being relatively rotatably arranged on the outer side through a first rotating assembly, one end of the retreat stop plate being a matching end and the other end being a transmission end;

[0008] a lock tongue being relatively rotatably arranged on the outer side below the retreat stop plate through a second rotating assembly, and a matching groove matched with the matching end being formed on the lock tongue;

[0009] a lock closing lever being coaxially installed on the second rotating assembly and being relatively rotatable with the lock tongue, an extension being arranged on the lock closing lever for abutting against one side edge of the lock tongue, when the lock is closed, the extension contacts with the lock tongue, the lock closing lever synchronously drives the lock tongue to rotate to a locking position, and the matching end is locked by being clamped into the matching groove; and

[0010] a motor being fixed on the inner side, a motor shaft of the motor penetrating through the lock holder for driving a motor lever relatively rotatably arranged on the outer side, when the lock is opened, the motor lever abuts against the transmission end to synchronously drive the retreat stop plate to rotate, and the matching end is unlocked by being separated from the matching groove.

[0011] As a further technical scheme, the first rotating component comprises a first rotating pin and a first torsion spring sleeved on the first rotating pin, one end of the first torsion spring is fixed on the lock holder, the other end abuts against the matching end, and a torque is applied to the stopper.

[0012] As a further technical scheme, the second rotating component comprises a second rotating pin and a second torsion spring sleeved on the second rotating pin, one end of the second torsion spring is fixed on the lock holder, the other end is fixed on the lock tongue, and a torque is applied to the lock tongue.

[0013] As a further technical scheme, the lock closing lever is coaxially sleeved on the second rotating pin in a relative rotating manner, one side of the lock closing lever away from the extension part is connected with a first tension spring, the other end of the first tension spring is fixed on the lock holder, and the first tension spring is used for applying a rebound force to the lock closing lever.

[0014] As a further technical scheme, a manual unlocking lever is coaxially arranged on the first rotating component; a notch is formed in one side wall of the lock holder, the upper end of the manual unlocking lever is exposed from the upper part of the lock holder, the lower end of the manual unlocking lever passes through the notch and abuts against the head part of the transmission bolt, the transmission bolt is fixed on the matching end of the stopper, and the manual unlocking lever is synchronously rotated with the stopper.

[0015] As a further technical scheme, the lower end of the manual unlocking lever is connected with a second tension spring, the other end of the second tension spring is fixed on the lock holder, and a rebound force is applied to the manual unlocking lever; the upper end of the manual unlocking lever is connected with the mechanical lock core in transmission.

[0016] As a further technical scheme, the lock body structure is fixed in the password drawer, and the password drawer is arranged in the outer box in a drawer type; the password drawer comprises a password unlocking layer arranged at the front end and a storage layer arranged behind the password unlocking layer, a locking groove is formed in the bottom of the password unlocking layer in a drawer direction, and when the lock is closed, the lock tongue extends out of the locking groove and is clamped on the edge of the outer box to lock the password drawer.

[0017] As a further technical scheme, buckling plates are fixed on both sides of the lock holder, and the lock body structure is fixed in the password unlocking layer through the lock holder and the buckling plates.

[0018] The present application has the following advantages:

[0019] 1. The lock body transmission structure is simple, the required parts are few, the production cost is low, and the lock body is arranged in a front type (i.e. fixed in the password unlocking layer), thereby effectively ensuring the space of the storage layer.

[0020] 2. When the box is closed, any sensing device is not needed, the password drawer is only pushed, the lock closing lever is directly pushed by the edge of the outer box to realize the closing of the lock, and the failure of closing the box is avoided.

[0021] 3. In addition to the password (fingerprint) verification unlocking, a manual unlocking lever is additionally arranged, when the password extraction fails, the manual unlocking lever can be driven by the mechanical lock core to realize mechanical unlocking, and ensure the safety and reliability of the password extraction. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a front view structural schematic diagram of the present application.

[0023] Figure 2 It is a rear view structural schematic diagram of the present application.

[0024] Figure 3 It is a left view structural schematic diagram of the present application.

[0025] Figure 4 It is a right view structural schematic diagram of the present application.

[0026] Figure 5 It is a three-dimensional structural schematic diagram of the present application Figure 1 .

[0027] Figure 6 It is a three-dimensional structural schematic diagram of the present application Figure 2 .

[0028] Figure 7 It is a structural schematic diagram of the present application after hiding the lock frame and the buckle plate Figure 1 .

[0029] Figure 8 It is a structural schematic diagram of the present application after hiding the lock frame and the buckle plate Figure 2 .

[0030] Figure 9 It is a structural schematic diagram of the lock frame in the present application.

[0031] Figure 10 It is a structural schematic diagram of the present application in the locked state.

[0032] Figure 11 It is a structural schematic diagram of the present application in the unlocked state.

[0033] Figure 12 It is a structural schematic diagram of the present application in the motor return state.

[0034] Figure 13 It is a structural schematic diagram of the present application after assembling with the outer box and the password extraction Figure 1 .

[0035] Figure 14 It is a structural schematic diagram of the present application after assembling with the outer box and the password extraction Figure 2 .

[0036] Figure 15 It is a structural schematic diagram of the password extraction in the present application.

[0037] Figure 16 This is a schematic diagram of the structure of the anti-retraction piece in this invention.

[0038] Explanation of reference numerals in the attached drawings: 1. Lock frame; 11. Notch; 12. Outer side; 13. Inner side; 2. Motor lever; 3. Anti-reverse plate; 31. First rotating pin; 32. First torsion spring; 33. Transmission bolt; 34. Mating end; 35. Transmission end; 4. Locking lever; 41. Second rotating pin; 42. Second torsion spring; 43. First tension spring; 44. Extension; 5. Lock tongue; 51. Mating groove; 6. Gasket; 7. Motor; 8. Manual unlocking lever; 81. Second tension spring; 9. Buckle plate; 100. Outer box; 101. Edge; 200. Password drawer; 201. Password unlocking layer; 202. Storage layer; 203. Locking groove. Detailed Implementation

[0039] The present invention will now be described in detail with reference to the accompanying drawings:

[0040] Example: As attached Figures 1 to 16 As shown, the lock body structure of this combination drawer includes a lock frame 1, a notch 11, an outer side 12, an inner side 13, a motor lever 2, a backstop plate 3, a first rotating pin 31, a first torsion spring 32, a transmission bolt 33, a mating end 34, a transmission end 35, a locking lever 4, a second rotating pin 41, a second torsion spring 42, a first tension spring 43, an extension 44, a lock tongue 5, a mating groove 51, a gasket 6, a motor 7, a manual unlocking lever 8, a second tension spring 81, a buckle plate 9, an outer box 100, an edge 101, a combination drawer 200, a combination unlocking layer 201, a storage layer 202, and a locking groove 203.

[0041] Reference Appendix Figure 9 The lock frame 1 has an outer side 12 and an inner side 13 opposite to the outer side 12, and a notch 11 is also provided on the left side of the lock frame 1. Figure 1 , 6 As shown in Figure 16, the anti-reverse plate 3 is rotatably mounted on the outer surface 12 via the first rotating assembly. One end of the anti-reverse plate 3 is the mating end 34 (with a certain curvature to facilitate insertion into the mating groove 51), and the other end is the transmission end 35. Further, the first rotating assembly includes a first rotating pin 31 and a first torsion spring 32 sleeved on the first rotating pin 31. The anti-reverse plate 3 is rotatably mounted on the outer surface 12 via the first rotating pin 31. One end of the first torsion spring 32 is fixed in a corresponding opening on the lock frame 1, and the other end of the first torsion spring 32 abuts against the mating end 34. The first torsion spring 32 applies torque to the anti-reverse plate 3, and when unlocking (e.g., when...),... Figure 11 , 12 (As shown) The anti-reverse plate 3 and the first torsion spring 32 are in the free state, and in the locked state (as shown) Figure 10 As shown, the first torsion spring 32 causes the anti-reverse plate 3 to have a tendency to rotate in a clockwise direction (i.e., a tendency to return to a free state).

[0042] As Figure 1 , 6 , 7, the lock tongue 5 is arranged on the outer side 12 by the second rotating assembly, and is located below the stop piece 3. A matching groove 51 is arranged on the side wall of the lock tongue 5, and the curvature of the matching groove 51 matches the curvature of the matching end 34. The second rotating assembly includes a second rotating pin 41 and a second torsion spring 42 sleeved on the second rotating pin 41. The lock tongue 5 is arranged on the outer side 12 by the second rotating pin 41. One end of the second torsion spring 42 is fixed in a corresponding hole of the lock frame 1, and the other end of the second torsion spring 42 is fixed in a hole of the lock tongue 5. The second torsion spring 42 applies a torque to the lock tongue 5. When unlocking (as shown in Figure 11 , 12 ), the lock tongue 5 and the second torsion spring 42 are in a free state. In the locked state (as shown in Figure 10 ), the second torsion spring 42 makes the lock tongue 5 have a tendency to rotate in the clockwise direction (i.e., a tendency to return to the free state).

[0043] Further, referring to the accompanying Figure 1 , 6 , 7, 8, the lock closing lever 4 is coaxially installed on the second rotating assembly (sleeved on the second rotating pin 41) and can rotate relative to the lock tongue 5. An extension 44 is arranged on the left side of the lock closing lever 4 and is used to abut against the left side edge of the lock tongue 5. When locking, the lock closing lever 4 is first rotated counterclockwise. When the extension 44 contacts the lock tongue 5, the lock closing lever 4 synchronously drives the lock tongue 5 to rotate counterclockwise until reaching a locking position (as shown in Figure 10 ), so that the matching end 34 is clamped into the matching groove 51 to be locked. Preferably, a first tension spring 43 is arranged in a hole on the right side of the lock closing lever 4 (i.e., the side away from the extension 44) and is fixed in a corresponding hole of the lock frame 1. The other end of the first tension spring 43 is fixed in the hole. The first tension spring 43 can apply a rebound force to the lock closing lever 4, so that the lock closing lever 4 can return to the free state (i.e., the first tension spring 43 is in a natural stretched state) no matter whether the lock closing lever 4 rotates counterclockwise or clockwise.

[0044] As shown in Figure 2 , 5 , the motor 7 is fixedly installed on the inner side 13. A motor shaft of the motor 7 penetrates the lock frame 1, so as to drive the motor lever 2 to rotate. As shown in Figure 1 , the motor lever 2 is arranged on the outer side 12 and is located on the right side of the stop piece 3. As shown in Figure 11 , when unlocking, the motor 7 drives the motor lever 2 to rotate, so that the motor lever 2 abuts against the transmission end 35 of the stop piece 3 and drives the stop piece 3 to synchronously rotate. The matching end 34 is separated from the matching groove 51, so that the locking is released.

[0045] Referring to the accompanying Figure 2 ,7 The manual unlocking lever 8 is arranged on the inner side 13 and coaxially arranged on the first rotating assembly (the first rotating pin 31). The upper end of the manual unlocking lever 8 is exposed from the upper part of the lock frame 1, and the lower end of the manual unlocking lever 8 penetrates the gap 11 on the left side of the lock frame 1 and abuts against the head of the transmission bolt 33, the rod part (threaded section) of the transmission bolt 33 is fixed in the corresponding hole in the matching end 34 of the stop piece 3, so that the manual unlocking lever 8 and the stop piece 3 can rotate synchronously. Further, the lower end of the manual unlocking lever 8 is provided with a hole for connecting the second tension spring 81, the other end of the second tension spring 81 is fixed in the corresponding hole in the lock frame 1, and the second tension spring 81 can exert a rebound force on the manual unlocking lever 8, so that the manual unlocking lever 8 can return to the free state (i.e. the second tension spring 81 is in the natural state of extension) no matter whether it rotates counterclockwise or clockwise. Preferably, the upper end of the manual unlocking lever 8 is connected with the mechanical lock core for transmission, when the fingerprint or password verification device of the password drawer fails to normally drive the motor lever 2, the mechanical lock core can be used to unlock, the mechanical lock core drives the manual unlocking lever 8 through the connecting rod (or a transmission component such as a steel wire) to realize mechanical unlocking, and the safety and reliability of the password drawer are ensured.

[0046] As shown in Figure 5 , 6 , the buckle plates 9 are fixedly arranged on both sides of the lock frame 1, and the whole lock body structure is fixed in the password unlocking layer 201 of the password drawer 200 through the lock frame 1 and the buckle plates 9. Figures 13 to 15 Further, as shown in Figure 15 , the password drawer 200 is arranged in the outer box 100 in a drawer type, and the password drawer 200 comprises the password unlocking layer 201 arranged at the front end and the storage layer 202 arranged behind the password unlocking layer 201. Figure 14 A locking groove 203 is arranged at the bottom of the password unlocking layer 201 in the drawer direction, when the lock is closed, the locking tongue 5 extends out of the locking groove 203 and is clamped on the edge 101 of the outer box 100, so that the password drawer 200 is locked and cannot be pulled, and the articles in the storage layer 202 are protected.

[0047] As shown in Figure 8 , preferably, a gasket 6 is arranged on the outer side 12 of the lock frame 1, and the stop piece 3 and the locking tongue 5 are arranged on the gasket 6 in a relative rotating manner, so as to avoid abrasion of the lock frame 1 during rotation.

[0048] The working process of the present application is as follows. Figure 10 As shown in , in the locked state, the locking tongue 5 extends out of the locking groove 203 and is clamped on the edge 101 of the outer box 100, and the password drawer 200 (the locking tongue 5) is locked because the matching end 34 of the stop piece 3 is clamped in the matching groove 51, so that the password drawer 200 cannot be pulled under the action of external force, and the articles in the storage layer 202 are protected.

[0049] When the password or fingerprint verification is passed, the motor 7 receives an unlocking signal, the motor 7 drives the motor lever 2 to rotate clockwise, the motor lever 2 abuts against the transmission end 35 of the stop piece 3, drives the stop piece 3 to rotate synchronously, the matching end 34 is separated from the matching groove 51, under the action of the first torsion spring 32, the stop piece 3 returns to the free state as shown in the figure, at the same time, the lock tongue 5 also returns to the free state under the action of the second torsion spring 42, the lock tongue 5 leaves the locking groove 203 and further releases the locking. Since the lock tongue 5 is no longer blocked by the edge 101, the password drawer 200 can be directly pulled out outward at this time, and the storage layer 202 is opened. Figure 11

[0050] After the unlocking is completed, the motor 7 drives the motor lever 2 to rotate counterclockwise immediately, and the motor lever 2 returns to the original position as shown in the figure. Figure 12 When the lock is closed again, the password drawer 200 is pushed inward, since the lock tongue 5 is in the lifted state, the lock tongue 5 is not blocked by the edge 101. The password drawer 200 is further pushed inward until the edge 101 abuts against the right side of the lock closing lever 4, the lock closing lever 4 begins to rotate counterclockwise under the force. When the extension 44 contacts the lock tongue 5, the lock closing lever 4 drives the lock tongue 5 to rotate counterclockwise synchronously, until the lock tongue 5 reaches the locking position (the locking position is shown in the figure), the matching end 34 is locked in the matching groove 51, and the lock closing lever 4 is retracted into the locking groove 203. Figure 10

[0051] When the fingerprint or password verification device of the password drawer fails, the motor 7 cannot normally drive the motor lever 2, at this time, the mechanical lock core can be used to unlock, the mechanical lock core drives the manual unlocking lever 8 through the connecting rod (or a transmission component such as a steel wire), since the manual unlocking lever 8 abuts against the transmission bolt 33, the stop piece 3 also rotates synchronously, the matching end 34 is separated from the matching groove 51 (the subsequent process is the same as when the password or fingerprint verification is passed, and is not described again), mechanical unlocking is realized, and the safety and reliability of the password drawer are ensured.

[0052] It can be understood that equivalent replacement or change of the technical solutions and inventive concepts of the present application by those skilled in the art should belong to the protection scope of the claims of the present application.​​

Claims

1. A lock body structure for a combination lock, characterized in that, The utility model relates to a lock frame (1) with an outer side (12) and an inner side (13) opposite to the outer side (12), a retreat stop piece (3) rotatably arranged on the outer side (12) by a first rotating component, one end of the retreat stop piece (3) being a matching end (34) and the other end being a transmission end (35), a lock tongue (5) rotatably arranged on the outer side (12) below the retreat stop piece (3) by a second rotating component, the lock tongue (5) being provided with a matching groove (51) matching the matching end (34), a lock closing lever (4) coaxially installed on the second rotating component and rotatable relative to the lock tongue (5), the lock closing lever (4) being provided with an extension (44) for abutting against one side edge of the lock tongue (5), when the lock is closed, the extension (44) is in contact with the lock tongue (5), the lock closing lever (4) synchronously drives the lock tongue (5) to rotate to a locking position, so that the matching end (34) is locked in the matching groove (51), and a motor (7) fixed on the inner side (13), a motor shaft of the motor (7) penetrating through the lock frame (1) for driving a motor lever (2) rotatably arranged on the outer side (12), when the lock is opened, the motor lever (2) abuts against the transmission end (35) to synchronously rotate with the retreat stop piece (3), so that the matching end (34) is separated from the matching groove (51) to release the lock. The first rotating component comprises a first rotating pin (31) and a first torsion spring (32) sleeved on the first rotating pin (31), one end of the first torsion spring (32) being fixed on the lock frame (1) and the other end abutting against the matching end (34) to apply a torque to the retreat stop piece (3). The second rotating component comprises a second rotating pin (41) and a second torsion spring (42) sleeved on the second rotating pin (41), one end of the second torsion spring (42) being fixed on the lock frame (1) and the other end being fixed on the lock tongue (5) to apply a torque to the lock tongue (5). The lock closing lever (4) is rotatably sleeved on the second rotating pin (41), one side of the lock closing lever (4) away from the extension (44) being connected with a first tension spring (43), the other end of the first tension spring (43) being fixed on the lock frame (1), and the first tension spring (43) being used for applying a rebound force to the lock closing lever (4). The utility model further comprises a manual unlocking lever (8) arranged on the inner side (13) and coaxially installed on the first rotating component, a notch (11) being formed on one side wall of the lock frame (1), an upper end of the manual unlocking lever (8) being exposed from an upper portion of the lock frame (1), a lower end of the manual unlocking lever (8) penetrating through the notch (11) and abutting against a head portion of a transmission bolt (33) fixed on the matching end (34) of the retreat stop piece (3), so that the manual unlocking lever (8) is synchronously rotatable with the retreat stop piece (3). The lower end of the manual unlocking lever (8) is connected with a second tension spring (81), the other end of the second tension spring (81) being fixed on the lock frame (1) to apply a rebound force to the manual unlocking lever (8), and the upper end of the manual unlocking lever (8) being connected with a transmission of a mechanical lock cylinder. ​ 2. The lock body structure of claim 1, wherein: ​ 3. The lock body structure of claim 1, wherein: ​ 4. The lock body structure of claim 3, wherein: ​ 5. The lock body structure of claim 1, wherein: ​ 6. The lock body structure of claim 5, wherein: ​ 7. The lock body structure of a code dial according to any one of claims 1 to 6, characterized in that: The lock body structure is fixed in the password drawer (200), the password drawer (200) is movably arranged in the outer box (100); the password drawer (200) comprises a password unlocking layer (201) arranged at the front end and a storage layer (202) arranged behind the password unlocking layer (201), a locking slot (203) is arranged at the bottom of the password unlocking layer (201) along the drawer direction, when the lock is closed, the lock tongue (5) extends out of the locking slot (203) and is clamped on the edge (101) of the outer box (100), so that the password drawer (200) is locked.

8. The lock body structure of claim 7, wherein: Further comprising a buckle plate (9) fixed on both sides of the lock frame (1), and the lock body structure is fixed in the password unlocking layer (201) through the lock frame (1) and the buckle plate (9).

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