CN2395003Y

CN2395003Y - Lock capable of changing key and key

Info

Publication number: CN2395003Y
Application number: CN 99240774
Authority: CN
Inventors: 姚衍宗
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-11-17
Filing date: 1999-11-17
Publication date: 2000-09-06
Anticipated expiration: 2009-11-17

Abstract

The utility model discloses a lock capable of changing a key and the key. More than one converting balls are installed between a lock core and a casing body of at least one group of marble holes in a plurality of groups of marble holes of the casing body and the lock core; the converting balls can be in the casing body or the marble holes of the lock core, because of the different depth of key bit grooves; the periphery of the lock core is provided with concave holes, wherein, in which the converting balls can be arranged. The identical shapes of key bits are more than two, but the depth of the key bit grooves is different. When a user can use the lock and the key, and then, the security of the first key is known as poor performance, the second key can be used, but when once the second key is used, the first key is failure, so that the utility model can enhance the security of the lock.

Description

The tapered end of interchangeable key and key

The utility model relates to lock, the tapered end that the key of particularly a kind of replaceable key and former usefulness lost efficacy.

Generally speaking (a kind of) key is driven a lock.If owner gives him man-hour because of certain reason key of having to, for example, house decoration worker, lessee, kith and kin etc. wait to regain the safety of often worrying lock behind the key.And for example, lose a key after, even there is standby key still to worry the safety of locking.Will change lock in case worry the safety of lock, then bring many troubles.

The purpose of the utility model is to provide a kind ofly can change standby another kind of key at any time, and in case changes that the structure of tapered end changes tapered end that the key of former usefulness ceases to be in force automatically and key after the key.

The tapered end of interchangeable key described in the utility model, housing is arranged and be enclosed within rotating lock core in the housing, the corresponding pellet shot from a slingshot of many groups hole is arranged on housing and the lock core, in the pellet shot from a slingshot hole of housing pellet shot from a slingshot and spring are housed, in the pellet shot from a slingshot hole of lock core pellet shot from a slingshot is housed, change pearl more than one packing between lock core and the housing at least one group of pellet shot from a slingshot hole, pearl can be in the pellet shot from a slingshot hole of housing or lock core in conversion, the lock core periphery does not have the shrinkage pool that can insert the conversion pearl with overlapping optional position, pellet shot from a slingshot hole, the slightly larger in diameter of shrinkage pool is in the diameter of conversion diameter, but less than the diameter of pellet shot from a slingshot in the housing, the degree of depth of shrinkage pool is greater than the overall height H of conversion pearl.

Chat the key that tapered end matches before described in the utility model, be that two or more profiles of tooth are identical but at least one is different with the corresponding gullet depth in pellet shot from a slingshot hole that the conversion pearl is housed, the depth capacity difference of two kinds of key teeth groove equals to place the overall height H of the conversion pearl in pellet shot from a slingshot hole.

Tapered end described in the utility model and key use the bigger key of gullet depth earlier.When key inserted lock core, because the teeth groove of key is darker, the pellet shot from a slingshot of lock core and conversion pearl all were in the pellet shot from a slingshot hole of lock core, and the conversion pearl is bordered on the interface of housing and lock core with pellet shot from a slingshot in the housing, and pellet shot from a slingshot does not hinder the lock core rotation.Be that the darker key of teeth groove can be opened this tapered end.If when owner thinks the poor stability of first kind of key, use second kind of key instead, i.e. the more shallow key of teeth groove.The teeth groove of second kind of key of cause is than first kind of shallow H height, and behind the insertion lock core, highly for the conversion integument of H pushes up in the bullet groove of housing, lock core is rotatable, can unblank.The rotation of lock core goes to the pellet shot from a slingshot hole of housing when concentric the shrinkage pool of lock core periphery, and under the effect of spring force, the conversion integument heads into shrinkage pool, and the slightly larger in diameter of face pellet shot from a slingshot can not enter shrinkage pool in the shrinkage pool diameter.After the conversion pearl enters shrinkage pool, even it is concentric on there not being reset force that rotational lock core makes the shrinkage pool and the pellet shot from a slingshot hole of housing once more, the conversion pearl can not be returned in the pellet shot from a slingshot hole again, tapered end has changed the key that can match with it automatically, when promptly inserting the darker key of first kind of teeth groove again, darker because of teeth groove, lacked again and highly be the conversion pearl of H, cause pellet shot from a slingshot in the housing to stretch into the pellet shot from a slingshot hole H degree of depth of lock core and block lock core it can not be rotated, or else first kind of key can rotate this lock core.

Described tapered end and key are minimum than the lock ﹠ key structural change of routine, increase the cost of manufacturing of lock hardly.But can realize that a lock is joined multiple key and in case change key, last time the key of Shi Yonging ceased to be in force automatically.Described lock and key can improve the safety of lock.

Fig. 1 opens the key of concave station as teeth groove, i.e. hole flute profile key on the key plane;

The part contrast schematic diagram of two kinds of keys that Fig. 2 gullet depth is different;

Fig. 3 is the sectional view of tapered end;

Fig. 4 adopts dark teeth groove key to insert state diagram;

Fig. 5 is the lock core rotation status figure of Fig. 3;

Fig. 6 adopts the insertion state diagram of shallow teeth groove key;

Fig. 7 is the lock core rotation status figure of Fig. 6;

Fig. 8 extracts the key state diagram;

Fig. 9 is the A-A sectional view of Fig. 4.

Be with rotating lock core 2 in the housing 1, the rotation of lock core can be stirred dead bolt and be moved and unblank.The corresponding pellet shot from a slingshot of many groups holes 4 are arranged on housing 1 and the lock core 2, pellet shot from a slingshot 5b and spring 7 are housed in the pellet shot from a slingshot hole of housing 1, in the pellet shot from a slingshot hole of lock core 2 pellet shot from a slingshot 5a is housed, between lock core and housing, pack into one in one group of pellet shot from a slingshot hole 4 and change pearl 6, according to the depth of the corresponding teeth groove of key that inserts, conversion pearl 6 may be in the pellet shot from a slingshot hole 4b of housing or be among the pellet shot from a slingshot hole 4a of lock core.Have a shrinkage pool 3 on the optional position of the not overlapping pellet shot from a slingshot of lock core 2 peripheries hole 4a, the degree of depth of shrinkage pool 3 is greater than the height H of conversion pearl 6, and to guarantee that only changing pearl 6 can enter shrinkage pool 3, the pellet shot from a slingshot 5b in the housing can not enter.

Key 8 has two kinds of teeth groove 8a degree of depth differences, and the gullet depth difference equals to change the height H of pearl.Clear for accompanying drawing, present embodiment is given is hole flute profile key.In fact, sawtooth pattern, cross, the column type key is all applicable.Fig. 4 is that the key 8 of dark teeth groove inserts lock core 2, and conversion pearl 7 is in the lock core 3, and Fig. 5 rotates with lock core for conversion pearl 6, and shrinkage pool 3 goes to the position of pellet shot from a slingshot 5b, and is smaller because of shrinkage pool 3 diameters, and pellet shot from a slingshot 5b can not enter shrinkage pool 3, and Fig. 3 is a state of extracting key.

Fig. 6 is that the key of more shallow teeth groove inserts lock core, and conversion pearl 6 is in the housing 1, and Fig. 7 makes shrinkage pool go to the position of pellet shot from a slingshot for lock core rotates, and conversion pearl 6 is headed in the shrinkage pool 3, and Fig. 8 extracts to change pearl 6 behind the key and be placed in state in the shrinkage pool 3.In a single day in case conversion pearl 6 enters shrinkage pool 3, it just can not enter among the pellet shot from a slingshot 4b of housing again, has promptly used after second kind of standby key, the key of former usefulness just lost efficacy can not open this lock again.

Should point out that present embodiment has provided the conversion pearl of packing in a kind of pellet shot from a slingshot hole, a corresponding teeth groove of key has the different difference of the depth.Can certainly organize the conversion pearl of packing in the pellet shot from a slingshot hole, key can be that all should have the teeth groove of conversion pearl to have only two kinds of the depths mutually more; Also can be to be divided into multiple standby key, the key that is former usefulness be should have mutually the conversion pearl teeth groove all are dark teeth groove, the first cover standby key only one or more dark teeth groove changes shallow teeth groove into, and the second cover standby key has more than two dark teeth groove change shallow teeth groove into ...Many cover standby keys so can be set.In addition, can insert two conversion pearls in one group of pellet shot from a slingshot hole, the corresponding teeth groove of key is divided into deeply, in, shallow three kinds, only the change in depth of a quantity of the conversion pearl in one group of pellet shot from a slingshot hole and a key teeth groove just can make a tapered end have three kinds of keys.The conversion pearl all is equipped with in group pellet shot from a slingshot hole more than adding with the quantity of configuration transitions pearl in every group of pellet shot from a slingshot hole, calculates tens kinds of standby keys that can use successively of a lock possible configuration by the mode of permutation and combination.

Claims

1, the tapered end of interchangeable key, housing (1) is arranged and be enclosed within rotating lock core (2) in the housing, many groups corresponding pellet shot from a slingshot holes (4) are arranged on housing (1) and the lock core (2), spring (7) and pellet shot from a slingshot (5b) are housed in the pellet shot from a slingshot hole (4b) of housing (1), pellet shot from a slingshot (5a) is housed in the pellet shot from a slingshot hole of lock core (2), it is characterized in that, between lock core (2) and housing (1), be equipped with at least one group of pellet shot from a slingshot hole (4) and change pearl (6) more than one, the conversion pearl can be in the pellet shot from a slingshot hole (4b of housing (1) or lock core (2), 4a), lock core (2) periphery do not have the shrinkage pool (3) that can insert conversion pearl (6) with pellet shot from a slingshot hole (4b) overlapping optional position, the slightly larger in diameter of shrinkage pool is in the diameter of conversion pearl (6), but less than the diameter of pellet shot from a slingshot in the housing (5b), the degree of depth of shrinkage pool (3) is greater than the overall height H of conversion pearl (6).

2, the key that matches and use with the described tapered end of claim 1, it is characterized in that, have two or more profiles of tooth identical but at least one is different with corresponding teeth groove (8a) degree of depth in the pellet shot from a slingshot hole (4) that conversion pearl (6) is housed, the depth capacity difference of the teeth groove of two or more keys (8a) equals to place the overall height H of the conversion pearl (6) in pellet shot from a slingshot hole (4).