CN2463507Y - Double-cipher lock - Google Patents

Abstract

The utility model provides a double-code lock, which comprises a lock body, an ordinary marble lock core arranged in a hole of the lock body, a number code rotation circle embedded between the lock body and a lock body sleeve, a radial locking part arranged on the middle of the lock body, locking rods respectively driven by a locking upper spring and an unlocking lower spring, and a locking concave hole increased on the corresponding position of the ordinary marble lock core; the simple code lock part which uses the first group of the code is composed of the number code rotation circle with a locking stopping step block, the locking rod with an upper bent hook, the locking upper spring, etc.; the complex code lock part which uses the second group of the code is composed of shifting bolts arranged on the inner wall of the number code rotation circle, three code rings with a front and a back bolts and a notch, a square unlocking sleeve cylinder with shoulders, the unlocking lower spring, etc., and furthermore, the locking rod is arranged in the square unlocking sleeve cylinder.

Description

Double-cipher lock

The utility model relates to a kind of cylinder lock and the combined a kind of lock of coded lock, especially simultaneously have two groups of passwords, using one group of simple password under the normal condition, in particular cases just use another to organize complicated password, is the Double-cipher lock that theftproof performance is splendid and use is easy again.

Present known cylinder lock has the shortcoming that key is stolen and can adopt master key to open, poor stability, and known strongbox coded lock though security performance is good, but has the shortcoming of using complicated inconvenience.

The purpose of this utility model provides a kind of Double-cipher lock, has the advantage of cylinder lock and coded lock concurrently, and can overcome its shortcoming, and is easy to use, and theftproof performance is splendid again.

The purpose of this utility model is to realize like this, turn-take at the external number that resistance stopper piece is housed of common spring lock core, with the simplified cipher of two figure places to timing, number is turn-taked and is hindered the bottom that the backset piece is in the last crotch of securing rod, securing rod can't be fallen, this lock after this moment, available key was normally opened, otherwise, as the password foot couple just, the number resistance backset piece of turn-taking is in the last crotch position of leaving securing rod, securing rod is not stopped, when turning over certain angle with key, the locking shrinkage pool of lock core is over against securing rod, securing rod enters downwards in the locking shrinkage pool of lock core under the elastic force of locking upper spring drives, and lock core can't be rotated further, key also can't be extracted, so even do not know the people of simple first group of password have key also can't open after this lock.In particular cases blocked when key, must use second group of complicated password to open the back: to rotate digital turn-taking and make its preceding screw that screw drives first band breach cipher ring of stirring, make its rotation; The rotation of first band breach cipher ring makes its back screw then drive second preceding screw of being with the breach cipher ring, makes its rotation; The rotation of second band breach cipher ring makes its back screw then drive the 3rd the preceding screw of being with the breach cipher ring again, and it is rotated, and principle is with the coded lock of known strongbox.When going to the complicated password setting position of forming by three two figure places, the barbed portion of three band breach cipher rings all is in the straight groove top of lock body, make the square shoulder portion of separating lock barrel of band shoulder of the straight groove that is positioned at lock body lose three constraints of being with the breach cipher rings, under driving, the elastic force of release lower spring upsprings, and drive is loaded on the locking shrinkage pool that the square securing rod of separating in the lock barrel of band shoulder upwards breaks away from lock core thus, it is free to rotate that lock core is returned to, until the enable possition.

Below in conjunction with accompanying drawing the utility model is further specified.

The 1. numbers 1a. resistance stopper piece 1b. that turn-takes stirs behind front the screw 2b. of screw 2. band breach cipher ring (having three) 2a. the screw 2c. barbed portion 2d. inclined-plane (only first cipher ring has) that resets and 3. be with upper straight groove 6. lock body sheaths of three round recessed parts of the crotch 4b. square plate 5. lock body 5a. 5b. 7. lock core 7a. of the square solution lock barrel 3a. band of shoulder shoulder portion 4. securing rod 4a. to lock shrinkage pool 8. to lock upper springs 9. release lower springs 10. sleeve cover plates (known lock cylinder inner structure part wherein among the figure; Do not belong to this patent, omit among the figure and do not draw or the end notes)

In Fig. 1, the simplified cipher of two figure places if number is turn-taked on (1) goes to the arrow part that aligns on the lock body sheath (6), this moment, the turn-take resistance stopper piece (1a) of (1) of number was in the lower position of the last crotch (4a) of securing rod (4), last crotch (4a) retaining of securing rod (4) is removed, it can't be fallen, this moment, available key was normally opened this lock, and is easy to use; Otherwise, when (1) does not go to first group of simple password position if number is turn-taked, the turn-take resistance stopper piece (1a) of (1) of number is in the position of the last crotch (4a) that leaves securing rod (4), this locking position bar (4) is not stopped, when turning over certain angle (as shown in this figure) with key, the position of the locking shrinkage pool (7a) of lock core (7) is over against securing rod (4), the elastic force of the locking upper spring (8) of the square plate (4b) of securing rod (4) below sleeve cover plate (10) drives down that to take on the square square hole of separating lock barrel (3) along band downward, securing rod (4) is entered in the locking shrinkage pool (7a) of lock core (7), lock core can't be rotated further, key also can't be transferred to, so do not know that the people of simple first group of password promptly has key also can't open this lock, just must open with second group of password of complexity this moment, though comparatively trouble can be guaranteed safety.

Three binary digits of second group of complicated password depend on the preceding screw (2a) of three band breach cipher rings (2) and the position at screw (2b) place, back, and three band breach cipher rings (2) embed in three round recessed parts (5a) of lock body (5).Rotate number turn-take (1) make its preceding screw (2a) that screw (1b) can drive first band breach cipher ring (2) of stirring, make its rotation; The rotation of first band breach cipher ring makes its back screw (2b) then drive second preceding screw of being with the breach cipher ring, makes its rotation; The rotation of second band breach cipher ring makes its back screw then drive the 3rd the preceding screw of being with the breach cipher ring again, and it is rotated, and principle is with the coded lock of known strongbox.When three two-bit digital code positions of the complicated password that goes to setting, the barbed portion (2c) of three band breach cipher rings (2) all is in straight groove (5b) top of lock body (5), make the square band shoulder portion (3a) of separating lock barrel (3) of band shoulder of the straight groove (5b) that is positioned at lock body (5) lose three constraints of being with breach cipher rings (2), under the elastic force of release lower spring (9) drives, square hole in lock body (5) pops up, and drive is loaded on the locking shrinkage pool (7a) that the square securing rod of separating in the lock barrel (3) (4) of band shoulder upwards breaks away from lock core (7) thus, it is free to rotate that lock core (7) is returned to, until the enable possition.

When closing this lock, as only using simple first group of password, only number need be turn-taked (1) is changeed an angle arbitrarily and is got final product, so that leave the password position of setting, guarantees safety; As using second group of complicated password then to need number is turn-taked (1) clockwise direction one to three week of rotation, make will the band shoulder square band shoulder shape part (3a) of separating lock barrel (3) in the inclined-plane that resets (2d) in breach of first band breach cipher ring (2) to pressing to home position earlier, and thus three numbers of second group of complexity password are thoroughly upset.

Claims (1)

1. A kind of Double-cipher lock, it comprises lock body, is loaded on the common spring lock core in the lock body opening, the number that is flush-mounted between lock body and the lock body sheath is turn-taked, it is characterized in that: be provided with locking radial in the middle of the lock body partly, form by the locking shrinkage pool that locks upper spring and the separately-driven securing rod of release lower spring and add in common spring lock core corresponding position; The simplified cipher lock section part of using first group of password by number turn-take join band resistance stopper piece, form with the securing rod of going up crotch and locking upper spring etc.; The complicated coded lock that uses second group of password is partly by the turn-take screw of stirring of inwall of number, three contain before and after screw band breach cipher ring (and the breach of first cipher ring contains the inclined-plane that resets), in securing rod is housed band shoulder square separate compositions such as lock barrel and release lower spring.