CN2313015Y - Puzzle lock-protection device - Google Patents

Abstract

The utility model relates to a lock protecting device with ciphers, which is arranged in front of a lock body. The utility model comprises a pedestal, a lock ring, a number checking ring and a sealing plate, A lock clamp is sheathed on the lock ring, number shifting pins are arranged on both the lock clamp and the number checking ring, notches are arranged on the inner circumferences of the number shifting pins, and lock rods are arranged on the inner sides of the notches. Pins are arranged between the lock rods and the sealing plate, and springs are arranged on the pins. The lock protecting device with ciphers enables locks to obtain duplicate protection. The utility model has the advantages of high cipher safety performance, convenient operation and reasonable design. The utility model can be used in various locksets.

Description

The lock protecting cipher device

The utility model relates to a kind of protective device of lock.

The protective device of lock is that an openable over cap is set in lock body the place ahead, is used for hiding lockhole.The burglar can not directly be destroyed lock body, play the effect of duplicate protection.The over cap of lock-protector generally is the method that adopts password locking.The lock-protector that Chinese patent 93228516.3 provides adopts method that lock ring outwards pulls out from the base endoporus with door open structure.Although its structure is unique, its troublesome poeration, the safe antitheft poor-performing of password.

The purpose of this utility model is at the problems referred to above, and a kind of lock protecting cipher device of novelty is provided, and it not only can improve the security performance of password locking, and easy to operate, reasonable in design.

The purpose of this utility model is to adopt following technical proposal to realize: the lock protecting cipher device comprises the lock ring on base and the base, check the number ring and shrouding are set on the lock ring, also be with pintle hook lock on the lock ring, on the pintle hook lock and the ring of checking the number the dialing pin arranged all, and recess is arranged on inner periphery.Rotate the ring of checking the number, just can drive pintle hook lock by the dialing pin and rotate.When pintle hook lock went to ad-hoc location with the ring of checking the number, lock-protector will be opened.Locking bar is equipped with in inboard at the pintle hook lock and the ring of checking the number, is provided with pin between locking bar and the shrouding, and spring is arranged on the pin.When the lock protecting cipher device is in opening, the recess on check the number ring and the pintle hook lock all be in locking bar directly over, locking bar can enter in the recess, makes the pin activity, thereby opens shrouding.

This sealing lock-protector is owing to adopt the pintle hook lock and the ring of checking the number to come setting code, and pintle hook lock generally has several, and uses same check mark ring dialing, so the security performance of password has improved greatly; Simultaneously, password is to after last, and shrouding need not be pulled out, and directly can open, and is therefore easy to operate, reasonable in design.

Concrete structure of the present utility model is provided by following embodiment and accompanying drawing thereof.

Fig. 1 is the half sectional view of the lock protecting cipher device that provides of the utility model.

Fig. 2 is the schematic diagram of pintle hook lock.

The utility model is described in further detail below in conjunction with accompanying drawing.

As shown in Figure 1, this lock protecting cipher device comprises base (1), lock ring (2), checks the number and encircle (3), shrouding (4), pintle hook lock (5), locking bar (6) and pin (7) etc.In the present embodiment, be provided with two pintle hook locks (5), pintle hook lock (5) is enclosed within on the lock ring (2) side by side with the ring (3) of checking the number.On the pintle hook lock (5) and the ring (3) of checking the number dialing pin (8) is arranged all,,, just can drive pintle hook lock (5) and rotate together as long as rotate the ring (3) of checking the number by dialing pin (8).On the inner periphery of the pintle hook lock (5) and the ring (3) of checking the number, also has recess (9).When having only the position directly over the recess (9) on the pintle hook lock (5) and the ring (3) of checking the number is in locking bar (6) simultaneously, locking bar (6) could embed in the recess (9).Like this, pin (7) will withdraw from from shrouding (4) under the effect of spring (10), and shrouding (4) can (11) be rotated along the axle center, and the lock protecting cipher device has just been opened.

As shown in Figure 2, on the pintle hook lock (5) ten the equally distributed number of changing holes (12) are arranged.The password of lock protecting cipher device just can be changed in the setting number of changing hole (12), further improves its security performance.Specifically the number of changing operation is as follows: at first make the lock protecting cipher device be in opening, just make pintle hook lock (5) and the ring (3) of checking the number on recess (9) be in position directly over the locking bar (6) simultaneously, the number of changing mouth (13) by base (1) back then, dialing pin (8) on the pintle hook lock (5) is back-outed from the number of changing hole (12), and be screwed in other number of changing hole (12), like this with regard to conversion password.In the present embodiment, except recess (9) is arranged, several additional recesses (14) are set also on pintle hook lock (5) inner periphery, the size of additional recesses (14) is littler than recess (9).The effect of additional recesses (14) is in order to improve the theftproof performance of lock protecting cipher device.Because the burglar when decryption, can rotate the ring (3) of checking the number usually, judge password according to the sound that is taken place in the rotation process.In fact, when the ring (3) of checking the number turned to the position of password, because recess (9) is arranged, sound that is produced and feel had atomic little difference, made some brilliant burglar can decryption.So, set up additional recesses (14), just can play the fascination effect, prevent that password is cracked.

In the present embodiment, because two pintle hook locks (5) are arranged, so password is made up of three numbers.Concrete opening process is as follows: at first rotate the ring (3) of checking the number to first password.At this moment, the ring (3) of checking the number is to drive two pintle hook locks (5) to rotate simultaneously, and makes recess (9) on the pintle hook lock (5) on the left side be in position directly over the locking bar (6); Continue to turn to second password place after making ring one week of (3) counter-rotation of checking the number then, the dialing pin (8) on the ring (3) of checking the number this moment can only make the pintle hook lock (5) on the right rotate and go to its recess (9) to be in position directly over the locking bar (6); At last, make the ring (3) of checking the number turn to the 3rd password place along positive direction again, the recess (9) on the ring (3) of checking the number also is in the position directly over the locking bar (6).Like this, locking bar (6) can embed in the recess (9), and shrouding (4) just can be opened, and the lock protecting cipher device is opened.

Claims (3)

1, a kind of lock protecting cipher device, comprise the lock ring (2) on base (1) and the base (1), check the number ring (3) and shrouding (4) are set on the lock ring (2), it is characterized in that being with on the described lock ring (2) pintle hook lock (5), on the pintle hook lock (5) and the ring (3) of checking the number dialing pin (8) is arranged all, and recess (9) is arranged on inner periphery, locking bar (6) is housed in the inboard of the pintle hook lock (5) and the ring (3) of checking the number, be provided with pin (7) between locking bar (6) and the shrouding (4), spring (10) is arranged on the pin (7).

2, lock protecting cipher device according to claim 1 is characterized in that ten the equally distributed number of changing holes (12) are arranged on the described pintle hook lock (5).

3, lock protecting cipher device according to claim 1 and 2 is characterized in that on described pintle hook lock (5) inner periphery several additional recesses (14) being set also, and the size of additional recesses (14) is littler than recess (9).

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