A safe lock

Abstract

The present invention discloses a safe lock, which is characterized in that a lock core sleeve is fixedly provided on the lock body, a turntable is provided on the lock core, the turntable rotates synchronously with the lock core, a clamping slot is provided on the turntable, the clockwise rotation of the turntable drives a connecting rod to pull a lock tongue to realize unlocking, the gap between the outer diameter of the turntable and the inner diameter of the lock core sleeve is smaller than the diameter of the buckle, and the reverse rotation of the turntable squeezes the buckle out of the opening of the slot to realize locking. The present invention mainly arranges a turntable on the lock body, and connects the lock tongue and the turntable through a connecting rod. Therefore, as long as the lock core is rotated, the turntable can be rotated, so that the lock tongue can realize a locked or unlocked state.

Description

Technical Field

[0001] The present invention relates to an improved invention of a safe lock, in particular to a simple anti-theft safe lock. Background Art

[0002] In the prior art, there are many types of safe locks with various structures, but all of the structures are relatively complex, and it is troublesome to disassemble or assemble them after they are damaged. Moreover, since the objects in the safe are relatively important, current manufacturers can only be satisfied with the status quo for safety considerations. Summary of the invention

[0003] In view of this, the purpose of the present invention is to provide a safe lock which has a simple structure, is easy to disassemble and assemble, and can ensure safety. In order to achieve the above purpose, the present invention is completed by the following technical scheme: a safe lock, comprising a lock body, a lock core and a lock tongue, characterized in that a lock core sleeve is fixedly provided on the lock body, a lock plate groove is provided in the lock core sleeve, an opening is provided at the upper end of the lock core sleeve, a turntable is provided on the lock core, a lock plate in the lock core matches a card, the card matches the lock plate groove, the turntable rotates synchronously with the lock core, and the turntable A slot is provided on the top, the lock tongue is connected to a connecting rod, a buckle is provided on the connecting rod, the buckle cooperates with the slot, a cavity for accommodating the buckle is provided on the lock body, an elastic member is provided on the connecting rod for making the connecting rod lean against the turntable, the turntable rotates, so that the buckle falls into the slot from the cavity through the opening, when the buckle falls into the slot, the turntable rotates clockwise to drive the connecting rod to pull the lock tongue to unlock, the gap between the outer diameter of the turntable and the inner diameter of the lock core sleeve is smaller than the diameter of the buckle, and the reverse rotation of the turntable will squeeze the buckle out of the opening from the gap to the slot to lock.

[0004] The lock body is also provided with a locking device to prevent external force from damaging it. The locking device to prevent external force from damaging it includes a rocker arm, which is hinged on the lock body. A bayonet is provided on the lock tongue. A locking buckle is provided at the front end of the rocker arm. The rear end of the rocker arm abuts against the shell. The front end always causes the rocker arm to generate a downward force through an elastic member. The rear end of the rocker arm breaks away from the restriction of the shell, and the elastic member causes the locking buckle to fall into the bayonet on the lock tongue.

[0005] The connecting rod is provided with a step, the lock body is provided with a limiting protrusion, and the concave portion of the step matches the limiting protrusion on the lock body.

[0006] The invention mainly arranges a rotating disk on the lock body, and connects the lock tongue and the rotating disk through a connecting rod. Therefore, the rotating disk can be rotated as long as the lock core is rotated, so that the lock tongue can realize the locking or unlocking state. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] The present invention has the following accompanying drawings:

[0008] Figure 1 It is a structural cross-sectional view of the present invention;

[0009] Figure 2 It is a three-dimensional diagram of the structure of the present invention;

[0010] Figure 3 It is a three-dimensional diagram of the connecting rod of the present invention leaving the slot. DETAILED DESCRIPTION

[0011] The accompanying drawings show the structure of the present invention. The following is a further description of the relevant details and working principle of its embodiment in conjunction with the accompanying drawings: This kind of safe lock includes a lock body 1, a lock core 2 and a lock tongue 3. A lock core sleeve 4 is fixedly provided on the lock body. An opening 5 is provided at the upper end of the lock core sleeve 4. A lock plate groove is provided in the lock core sleeve. An opening is provided at the upper end of the lock core sleeve. A turntable is provided on the lock core. The lock plate in the lock core matches the card. The card matches the lock plate groove. When the key is inserted into the lock core, the lock plate falls into the key groove. Therefore, the card will leave the restraint of the lock plate groove and realize rotation (not shown in the figure), thereby further realizing the unlocking function. A turntable 6 is provided on the lock core 2. The turntable rotates synchronously with the lock core. A card groove 7 is provided on the turntable. The lock tongue 3 is connected to a connecting rod 8. A buckle 9 is provided on the connecting rod 8. The buckle cooperates with the card groove. A cavity 10 for accommodating the buckle is provided on the lock body. An elastic member 11 for making the connecting rod abut against the turntable is provided on the connecting rod. Here, the elastic member can be a spring or other component that can generate elasticity. The turntable 6 rotates to make the buckle 9 fall from the cavity through the opening 5 into the slot of the turntable. When the buckle falls into the slot, the turntable continues to rotate clockwise to drive the connecting rod to pull the lock tongue to unlock. The gap between the outer diameter of the turntable and the inner diameter of the lock core sleeve is smaller than the diameter of the buckle. Therefore, the buckle will not fall into this gap, and a blocking part will be generated at the opening. The reverse rotation of the turntable will squeeze the buckle out of the opening into the slot through the blocking part generated in the gap to achieve locking.

[0012] The lock body is also provided with an anti-external force damage locking device, which includes a swing rod 12, which is hinged on the lock body, a bayonet 13 on the lock tongue, a locking buckle 14 at the front end of the swing rod, and a rear end 17 of the swing rod against the shell. It should be explained here that since the shell includes a shell body and a shell cover, which are separate, and some are conjoined, the shell here is the shell cover part, and the front end is through an elastic member, which can also be a spring or tension spring or torsion spring and other elastic generating components (not shown in the figure) to always make the swing rod generate a downward force, and the rear end of the swing rod is separated from the restriction of the shell, and the elastic member makes the locking buckle fall into the bayonet on the lock tongue. When the shell cover part of the shell is damaged by external force, the swing rod is separated from the restraint of the shell cover, and its front end will make the locking buckle fall into the bayonet of the lock tongue through the spring to achieve locking, which can prevent the lock cylinder from being damaged by external force and also achieve the locking function.

[0013] The connecting rod is provided with a step 15, and the lock body is provided with a limiting protrusion 16, and the concave part of the step cooperates with the limiting protrusion on the lock body. In this way, the connecting rod can be prevented from exposing the lock tongue too much when the lock core is reversed, thereby limiting the rotation angle of the lock core.

Claims

1. A safe lock, comprising a lock body, a lock core and a lock tongue, characterized in that The lock body is fixedly provided with a lock core sleeve, the lock core sleeve is provided with a lock plate groove, the upper end of the lock core sleeve is provided with an opening, the lock core is equipped with a turntable, the lock plate in the lock core matches the card, and the card matches the lock plate groove. The turntable rotates synchronously with the lock core, the turntable is provided with a card slot, the lock tongue is connected to the connecting rod, the connecting rod is provided with a buckle, and the buckle cooperates with the card slot. The lock body is provided with a cavity for accommodating the buckle, and the connecting rod is provided with an elastic member for making the connecting rod abut against the turntable. When the turntable rotates, the buckle falls into the card slot from the cavity through the opening. When the buckle falls into the card slot, the turntable rotates forward to drive the connecting rod to pull the lock tongue to realize unlocking, and the gap between the outer diameter of the turntable and the inner diameter of the lock core sleeve is smaller than the diameter of the buckle, and the reverse rotation of the turntable will squeeze the buckle out of the opening from the gap to realize locking.

2. A safe lock as claimed in claim 1, characterized in that The lock body is also provided with a locking device to prevent external force from damaging it. The locking device to prevent external force from damaging it includes a rocker arm, which is hinged on the lock body. A bayonet is provided on the lock tongue. A locking buckle is provided at the front end of the rocker arm. The rear end of the rocker arm abuts against the shell. The front end always causes the rocker arm to generate a downward force through an elastic member. The rear end of the rocker arm breaks away from the restriction of the shell, and the elastic member causes the locking buckle to fall into the bayonet on the lock tongue.

3. A safe lock as claimed in claim 1, characterized in that The connecting rod is provided with a step, the lock body is provided with a limiting protrusion, and the concave portion of the step matches the limiting protrusion on the lock body.

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