A safe safety lock

Abstract

The present invention discloses a safety lock for a safe deposit box, comprising a shell of the safety lock, wherein a first accommodating chamber is provided in the shell, a lock core is rotatably connected in the first accommodating chamber, a first driving mechanism which can drive the lock core to rotate is provided in the first accommodating chamber, a first rotating shaft and a second rotating shaft are provided on the inner side wall of the first accommodating chamber, the lock core comprises a first rotating block rotatably connected to the first rotating shaft and a second rotating block rotatably connected to the second rotating shaft, the first rotating block is slidably connected to the second rotating block through a first spring, the outer side wall of the first rotating block is locked and matched with the outer side wall of the second rotating block through a first locking structure, the inner side wall of the first accommodating chamber is slidably connected to the outer side wall of the first rotating block through the first driving mechanism, and a first through hole is provided on the outer side wall of the shell for allowing an object to extend into the first accommodating chamber and push the second rotating block to reset.

Description

Technical Field

[0001] The present invention relates to the technical field of safe locks, and particularly to a safe lock. Background Art

[0002] In the prior art, the left core structure of a safe is relatively complex, and often a motor is required to push the barb of the lock core to be tightly fitted with the U-shaped lock of the product. However, such a locking structure is relatively complex, and there is a phenomenon of inconvenient disassembly in later maintenance. Summary of the Invention

[0003] Aiming at the deficiencies of the prior art, the present invention provides a safe lock that can drive the lock core to rotate without using a motor and then complete the locking fit with the U-shaped lock.

[0004] A safe lock of the present invention includes a housing of the safe lock. A first accommodating cavity is provided inside the housing. A lock core is rotatably connected inside the first accommodating cavity. A first driving mechanism for driving the lock core to rotate is provided inside the first accommodating cavity. A first rotating shaft and a second rotating shaft are provided on the inner side wall of the first accommodating cavity. The lock core includes a first rotating block rotatably connected to the first rotating shaft and a second rotating block rotatably connected to the second rotating shaft. The first rotating block is slidably connected to the second rotating block through a first spring. The outer side wall of the first rotating block is tightly fitted with the outer side wall of the second rotating block through a first locking structure. The inner side wall of the first accommodating cavity is slidably connected to the outer side wall of the first rotating block through the first driving mechanism. A first through hole is provided on the outer side wall of the housing for an object to extend into the first accommodating cavity to push the second rotating block for reset.

[0005] As a preference: The first driving mechanism includes a first fixing seat provided on the inner side wall of the first accommodating cavity and a second fixing seat provided on the outer side wall of the first rotating block. A first accommodating groove for accommodating a power supply device is provided on the outer side wall of the housing. The first accommodating groove is electrically connected to the first fixing seat through a circuit. A metal strip is fixedly connected between the first fixing seat and the second fixing seat; the metal strip is a nickel-titanium alloy wire that will contract after being electrified and quickly recover its length after being powered off.

[0006] As a preference: A second through hole for the first rotating shaft to pass through is provided at the center of the first rotating block. The first locking structure includes a first limiting protrusion provided at one end of the outer side wall of the first rotating block close to the first driving mechanism and on one side of the second rotating block. A first groove for the first limiting protrusion to be embedded and cooperate with the first limiting mechanism for limiting is provided on the outer side wall of the second rotating block close to the first rotating block. A first arc-shaped guiding groove is provided on the outer side wall of the first rotating block close to the second rotating block. A first arc-shaped guiding surface that can cooperate with the first arc-shaped guiding groove and slide arc-shaped in the first arc-shaped guiding groove is provided on the outer side wall of the second rotating block.

[0007] As a preference: A third through hole through which the second rotating shaft can pass is provided at the center of the second rotating block. A guiding inclined surface is provided on one side of the second rotating block close to the first through hole, and a barb is fixedly connected to the guiding inclined surface.

[0008] As a preference: A third fixing seat is provided on the outer side wall of the first rotating block close to the first driving mechanism, and a fourth fixing seat is provided on the outer side wall of the second rotating block close to the first groove. The third fixing seat is elastically connected to the fourth fixing seat through a first spring.

[0009] As a preference: A second metal strip is provided in the first accommodating cavity. One end of the second metal strip is fixedly connected to the outer side wall of the first rotating block away from the first locking structure, and the other end of the second metal strip away from the first rotating block is fixedly connected to the inner side wall of the first accommodating cavity. The material of the second metal strip is also nitinol wire, and the main function of the second metal strip is to prevent the nitinol wire from deforming due to a sharp temperature change and thus unlocking the lock. Description of the Drawings

[0010] The drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0011] Figure 1 It is a schematic structural diagram when the first rotating block and the second rotating block in a safety lock of a safe of the present invention are locked and cooperated.

[0012] Figure 2 It is a schematic structural diagram when the first rotating block and the second rotating block in a safety lock of a safe of the present invention are unlocked and the locking cooperation is released.

[0013] Figure 3 is Figure 1 The enlarged view at A in. Detailed Embodiments

[0014] The following will disclose multiple embodiments of the present invention with diagrams. For the sake of clarity, many practical details will be described together in the following narrative. However, it should be understood that these practical details are not used to limit the present invention. That is to say, in some embodiments of the present invention, these practical details are not necessary. In addition, for the purpose of simplifying the diagrams, some well-known and commonly used structures and components will be shown in a simple schematic manner in the diagrams.

[0015] In addition, in the present invention, descriptions such as "first" and "second" are for descriptive purposes only, and do not particularly refer to the order or sequence, nor are they used to limit the present invention. They are merely used to distinguish components or operations described with the same technical terms, and should not be construed as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0016] Embodiment 1: Refer to Figures 1 to 2 : In this technical solution, a power supply device, that is, a battery, is placed in the first accommodation groove on the outer side wall of the housing. The switch located on the outer side wall of the housing is turned on, so that the battery supplies electrical energy to the nitinol wire, and the nitinol wire has the characteristic that its length will shorten after receiving electricity. Therefore, the nitinol wire will pull one end of the first rotating block provided with the first spring, so that the first limiting protrusion of the first rotating block will slide out of the first groove. Since the lower ends of the first rotating block and the second rotating block are elastically connected by the first spring, the lower end of the second rotating block will rotate towards the first rotating block under the pull of the first spring. At this time, the first arc-shaped guiding surface on the outer side wall of the lower end of the second rotating block will slide into the first arc-shaped guiding groove on the outer side wall of the first rotating block close to the second rotating block and be in close contact with the inner side wall of the first arc-shaped guiding groove. And at this time, the barb at one end of the second rotating block close to the first through hole will rotate away from the first rotating block and then leave the first through hole, so that the "U" - shaped ring of the external product can extend into the first through hole. A structure as shown in Figure 2 is formed.

[0017] When the structure as shown in Figure 2 is formed, the user can insert the "U" - shaped ring of the product into the first through hole. When the "U" - shaped ring abuts against the guiding inclined surface of the second rotating block, since the guiding inclined surface is in an inclined state in the first through hole at this time. Therefore, when the "U" - shaped ring applies a downward force, it will give a downward force to the end of the second rotating block away from the first spring, so that the second rotating block rotates counterclockwise along the second rotating shaft. And the second rotating block located in the first arc-shaped guiding groove will slide away from the first rotating block until the first arc-shaped guiding surface completely slides out of the first arc-shaped guiding groove. At this time, since the nitinol wire loses the power supply of the power source, the nitinol wire will return to its original length, that is, the length of the nitinol wire elongates and pushes the lower end of the first rotating block to slide towards the second rotating block, and the first limiting protrusion is embedded in the first groove again, thus completing the limiting cooperation between the first rotating block and the second rotating block.

[0018] A safety lock for a safe of the present invention includes a housing 1 of the safety lock. A first accommodation cavity 2 is provided inside the housing 1. A lock core 3 is rotatably connected inside the first accommodation cavity 2. A first driving mechanism 4 for driving the lock core 3 to rotate is provided inside the first accommodation cavity 2. A first rotating shaft 5 and a second rotating shaft 6 are provided on the inner side wall of the first accommodation cavity 2. The lock core 3 includes a first rotating block 7 rotatably connected to the first rotating shaft 5 and a second rotating block 8 rotatably connected to the second rotating shaft 6. The first rotating block 7 is slidably connected to the second rotating block 8 through a first spring 9. The outer side wall of the first rotating block 7 is tightly engaged with the outer side wall of the second rotating block 8 through a first locking structure 10. The inner side wall of the first accommodation cavity 2 is slidably connected to the outer side wall of the first rotating block 7 through the first driving mechanism 4. A first through hole 11 is provided on the outer side wall of the housing 1 through which an object can extend into the first accommodation cavity 2 to push the second rotating block 8 for resetting.

[0019] As a preference: The first driving mechanism 4 includes a first fixed seat 12 provided on the inner side wall of the first accommodation cavity 2 and a second fixed seat 13 provided on the outer side wall of the first rotating block 7. A first accommodation groove 15 for accommodating a power supply device 14 is provided on the outer side wall of the housing 1. The first accommodation groove 15 is electrically connected to the first fixed seat 12 through a circuit. A metal strip 16 is fixedly connected between the first fixed seat 12 and the second fixed seat 13; The metal strip 16 is a nickel-titanium alloy wire that will contract after being electrified and quickly recover its length after being powered off.

[0020] As a preference: A second through hole 17 through which the first rotating shaft 5 can pass is provided at the center of the first rotating block 7. The first locking structure 10 includes a first limiting protrusion 18 provided at one end of the outer side wall of the first rotating block 7 close to the first driving mechanism 4 and on one side of the second rotating block 8. A first groove 19 for the first limiting protrusion 18 to be embedded and cooperate for limiting is provided on the outer side wall of the second rotating block 8 close to the first rotating block 7. A first arc-shaped guiding groove 20 is provided on the outer side wall of the first rotating block 7 close to the second rotating block 8. A first arc-shaped guiding surface 21 that can cooperate with the first arc-shaped guiding groove 20 and slide in an arc shape in the first arc-shaped guiding groove 20 is provided on the outer side wall of the second rotating block 8.

[0021] As a preference: A third through hole 22 through which the second rotating shaft 6 can pass is provided at the center of the second rotating block 8. A guiding inclined surface 23 is provided on the second rotating block 8 close to the first through hole 11. A barb 24 is fixedly connected to the guiding inclined surface 23.

[0022] As a preference: A third fixed seat 25 is provided on the outer side wall of the first rotating block 7 close to the first driving mechanism 4. A fourth fixed seat 26 is provided on the outer side wall of the second rotating block 8 close to the first groove 19. The third fixed seat 25 is elastically connected to the fourth fixed seat 26 through a first spring 9.

[0023] As a preference: A switch for driving the power supply device 14 to be energized is provided on the outer side wall of the housing 1, and the power supply device 14 is a battery.

[0024] As a preference: A second metal strip is provided in the first accommodating cavity 2. One end of the second metal strip is fixedly connected to the outer side wall of the first rotating block 7 away from one side of the first locking structure 10, and the end of the second metal strip away from the first rotating block is fixedly connected to the inner side wall of the first accommodating cavity. The material of the second metal strip is also a nickel-titanium alloy wire. The main function of the second metal strip is to prevent the nickel-titanium alloy wire from deforming due to a sharp temperature change and thus opening the lock.

Claims

1. A safe deposit box safety lock, comprising a safety lock housing (1), wherein a first accommodating chamber (2) is provided in the housing (1), a lock cylinder (3) is rotatably connected in the first accommodating chamber (2), and a first driving mechanism (4) capable of driving the lock cylinder (3) to rotate is provided in the first accommodating chamber (2), characterized in that: The inner wall of the first accommodating chamber (2) is provided with a first rotating shaft (5) and a second rotating shaft (6); the lock core (3) comprises a first rotating block (7) rotatably connected to the first rotating shaft (5) and a second rotating block (8) rotatably connected to the second rotating shaft (6); the first rotating block (7) is slidably connected to the second rotating block (8) via a first spring (9); the outer wall of the first rotating block (7) is locked with the outer wall of the second rotating block (8) via a first locking structure (10); the inner wall of the first accommodating chamber (2) is slidably connected to the outer wall of the first rotating block (7) via a first driving mechanism (4); the outer wall of the housing (1) is provided with a top portion for allowing an object to be inserted into the first accommodating chamber (2); The first through hole (11) is used to push the second rotating block (8) to reset; the first driving mechanism (4) comprises a first fixed seat (12) provided on the inner side wall of the first accommodating chamber (2) and a second fixed seat (13) provided on the outer side wall of the first rotating block (7); the outer side wall of the shell (1) is provided with a first accommodating groove (15) capable of accommodating a power supply device (14); the first accommodating groove (15) is electrically connected to the first fixed seat (12) through a circuit; a metal strip (16) is fixedly connected between the first fixed seat (12) and the second fixed seat (13); the metal strip (16) is a nickel-titanium alloy wire that contracts when powered on and quickly recovers its length when powered off; the center of the first rotating block (7 ... fixed seat (12) that can accommodate a power supply device (14); the first fixed seat (12) and the second fixed seat (13) are electrically connected to the first fixed seat (12) and the second fixed seat (13); the metal strip (16) is a nickel-titanium alloy wire that contracts when powered on and quickly recovers its length when powered off; the center of the first rotating block (7) is provided with a first fixed seat (15) that can accommodate a power supply device (14); the first fixed seat (12) and the second fixed seat (13) are electrically connected to the first fixed seat (12) and the second fixed seat (13); the metal strip (1 A second through hole (17) is provided for the first rotating shaft (5) to pass through, the first locking structure (10) comprises a first limiting protrusion (18) provided on an outer wall of the first rotating block (7) close to one end of the first driving mechanism (4) and on one side of the second rotating block (8), a first groove (19) is provided on the outer wall of the second rotating block (8) close to the first rotating block (7) for the first limiting protrusion (18) to be embedded in and to cooperate with the first limiting protrusion (18) for limiting, a first arc-shaped guide groove (20) is provided on the outer wall of the first rotating block (7) close to the second rotating block (8), and a first arc-shaped guide groove (20) is provided on the outer wall of the second rotating block (8) for cooperating with the first arc-shaped guide groove (20) and to be locked in the first rotating block (8). A first arc-shaped guide surface (21) is provided in the arc-shaped guide groove (20) for sliding in an arc shape; a third through hole (22) is provided at the center of the second rotating block (8) for the second rotating shaft (6) to pass through; a guide inclined surface (23) is provided on the side of the second rotating block (8) close to the first through hole (11); a barb (24) is fixedly connected to the guide inclined surface (23); a third fixed seat (25) is provided on the outer wall of the first rotating block (7) close to the first driving mechanism (4); a fourth fixed seat (26) is provided on the outer wall of the second rotating block (8) close to the first groove (19); the third fixed seat (25) is elastically connected to the fourth fixed seat (26) via a first spring (9).

2. A safe lock according to claim 1, characterized in that: The outer wall of the housing (1) is provided with a switch for driving the power supply device (14) to be energized, and the power supply device (14) is a battery.

3. A safe lock according to claim 1, characterized in that: A second metal strip is provided in the first accommodating cavity (2), one end of the second metal strip being fixedly connected to the outer wall of the first rotating block (7) away from the first locking structure (10), and one end of the second metal strip being fixedly connected to the inner wall of the first accommodating cavity away from the first rotating block.

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