CN2201452Y

CN2201452Y - Variable cipher lock

Info

Publication number: CN2201452Y
Application number: CN 94217481
Authority: CN
Inventors: 温石
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-08-03
Filing date: 1994-08-03
Publication date: 1995-06-21
Anticipated expiration: 2004-08-03

Abstract

The utility model relates to a key-type cipher lock which can change the cipher. The key-type cipher lock is composed of keys, a turn knob, an eccentric wheel, a guide wheel, an iron bar, a lock bolt, a cipher changing core and a cipher changing knob. The key-type cipher lock is characterized in that the device of the cipher can be changed optionally without disassembling and without any tools. The utility model has the advantages of high security, convenient operation, wide application range, long service life, high reliability, damp-proof and firep-roof performance, easy maintenance, etc. The utility model can be used widely for safes, file cabinets, door locks, guesthouses, the safes in public space, etc.

Description

Variable cipher lock

The utility model relates to a kind of mechanical key formula coded lock.It is specially adapted to strongbox of safety cabinet, file cabinet, door lock, hotel and public place etc.

The existing mechanical coded lock generally can not arbitrarily change password, and in a single day the number of unblanking is known by others, just lost safe and secret effect.A kind of mechanical number lock that changes number of announcing among the China utility model manual 89205851.X, comprise lock body, lock core,

Parts such as dial combination, the dial combination is made up of dial, ratchet dish, stage clip, and the profile of this lock relatively is suitable for making chain lock, bicycle lock, padlock etc., not too is suitable for making forms such as door lock.

Task of the present utility model is yard coded lock that changes that a kind of confidentiality height, easy to operate, wide application will be provided, and need not dismantle, not need any instrument just can arbitrarily change the setting of password.

The utility model mainly comprises knob, eccentric wheel, guide wheel, also has a toothed locking bolt, and the end of locking bolt props up eccentric wheel, and its between cog is provided with column and changes a yard core.Change and have two gap on yard core alternately.When certain following gap that changes yard core on plane, locking bolt place towards locking bolt, then corresponding tooth can change a yard core by this smoothly on the locking bolt; When certain following gap that changes yard core on the locking bolt plane not towards locking bolt, then corresponding tooth can not change a yard core by this on the locking bolt, change a yard core corresponding key by pressing this this moment, the last gap that changes yard core is moved on on the locking bolt plane towards locking bolt, and tooth corresponding on the locking bolt can change a yard core by this smoothly.When all change a yard core and are gap towards locking bolt on the plane, locking bolt place, locking bolt can move freely along self length direction, eccentric rotation is not construed as limiting turning knob, the eccentric wheel, guide wheel, the iron bar that link together with knob and then rotate around the knob axis, promptly open lock.

Just to change password easily in order not dismantling, to be with column and to change a yard button changing a yard core lower end, it is outside to be exposed to the lock back of the body, rotates to change yard button and just can drive the rotation that changes yard core.

Also be provided with projection in the outside that changes yard button, projection is arranged in the groove of lock, makes the gap that changes yard core carry out angle orientation exactly with respect to locking bolt indirectly.After changing yard button and moving along its length direction, its projection can break away from above-mentioned groove, makes that to change yard button free to rotate.

The utility model is exposed to by rotation locks the outer password setting that yard button just can change lock that changes, therefore easy to use, the security height.And the number that changes yard core can increase arbitrarily, and the probability that other people are unblanked reduces; If changing the number of yard core is n, the people who does not then know password unblanks the needed test number (TN) of success at most can be up to 2 ⁿInferior.

Below in conjunction with embodiment and accompanying drawing thereof in detail the utility model is described in detail.

Fig. 1 is a front view of the present utility model;

Fig. 2 is along the sectional view of B-B among Fig. 1;

Fig. 3 is along the sectional view of C-C line among Fig. 2.

Fig. 4 is along the sectional view of A-A line among Fig. 1;

Fig. 5 is the front view that changes yard core;

Fig. 6 is along the sectional view of G-G line among Fig. 5;

Fig. 7 is along the sectional view of E-E line among Fig. 5;

Fig. 8 is along the sectional view of F-F line among Fig. 5;

Fig. 9 is the front view that changes yard button;

Figure 10 is along the sectional view of H-H line among Fig. 9;

Figure 11 is along the sectional view of I-I line among Figure 10.

Fig. 1 is a front view of the present utility model, all indicates lowercase on each button, and the button that wherein indicates n is a reset key.Knob 14, eccentric wheel 18 are Bolt Connection with guide wheel 19 among Fig. 2, and iron bar 20 plugs together with guide wheel 19.Locking bolt 4 is inconsistent with eccentric wheel 18 among Fig. 2, and as can be seen from Fig. 3, if locking bolt 4 can not move along self length direction, then eccentric wheel 18 can not rotate.

Fig. 3 provided locking bolt place plane change gap under yard core towards certain state; With this figure is example, be numbered c, e, i change yard core at the gap on plane, locking bolt place not towards locking bolt, the corresponding teeth of locking bolt can not change a yard core by these three, so these three change a yard core and are in the password state; Have only the button that is numbered c, e, i by pressing, just can make these three the last gap that change yard core move on to plane, locking bolt place and towards locking bolt, locking bolt just can move freely, turn knob 14 just can be unblanked again.Show also among Fig. 3 that the other end of locking bolt is equipped with locking bolt spring 21, be used for resetting of locking bolt.

More than narrated the method for unblanking.When shutting, press reset key shown in Fig. 1, as seen from Figure 2, the bottom of this key promotes reset key plate 11, sees from Fig. 4 simultaneously, move along locking bolt 4 length directions with the mode on the inclined-plane frame 12 that promotes to reset in the left side of reset key plate 11, from Fig. 4, can see this moment, be fixed on the lateral margin that hook-shaped reed 13 on the frame 12 that resets breaks away from the key plate 10 of the correspondence that respectively changes yard core 5, change yard core 5 and under the effect of spring 6, pop up and reset, locking bolt 4 can not move freely once more, plays the effect that shuts.

The top of key plate 10 contacts with button among Fig. 4, and the bottom has a short column to insert to change in the cylindrical hole at yard core 5 tops locatees.Another characteristics of this lock are, when unblanking, push the wrong any one key, this key correspondence change yard core can be reset all that reed 13 hooks because of the lateral margin of its key plate 10 can't be from horizontal reset, only press reset key and just can make all change yard core 5 to reset.Back-moving spring 22 among Fig. 2 makes the frame 12 that resets get back to the original place.

Shown shell 1, dividing plate 2 and the lock 3 of this lock among Fig. 4, key spring 9 is used for making each button to keep original position.Respectively there is a projection on the cylindrical both sides that change yard button 7 shown in Fig. 4 and Fig. 9 to Figure 11, become 180 ° relatively, can be positioned in two grooves of lock 3, make to change yard button 7 and can be fixed on two positions that differ 180 °.Two gap that change yard core that Fig. 5 to Fig. 8 represents are offered for staggered 180 °.When changing password, after will changing yard button 7 and promoting inwards, its projection breaks away from above-mentioned groove, will change yard button 7 again and rotate 180 °, drives to change 180 ° of yard core 5 rotations, then changes yard button 7 homings under the effect of spring 6 and gets final product.

Fig. 2 and Fig. 3 show that this lock can also be provided with bullet lock core 15, after key inserts, by thumb wheel 17, stir the latch 16 that is located on the eccentric wheel 18, after latch 16 translations, can pin relatively rotating of knob 14 and shell 1, play the dual fail-safe protection function of forming with coded lock.

Claims

1, a kind of variable cipher key type coded lock mainly comprises button, knob, eccentric wheel, guide wheel and iron bar, it is characterized in that: it also has a toothed locking bolt (4) that can move along self length direction, and the end of locking bolt (4) props up eccentric wheel; The between cog of locking bolt (4) has column to change a yard core (5), changes a yard core (5) and goes up interleaved two gap that have; Changing a yard core (5) can move along self length direction, also can be around self rotational.

2, variable cipher key type coded lock according to claim 1 is characterized in that: the lower end that changes a yard core (5) is with column and changes a yard button (7).

3, variable cipher key type coded lock according to claim 2 is characterized in that: the outside that changes a yard button (7) has one or more projection to be arranged in the groove of lock (3).