A kind of novel anti-theft tapered end
1, technical field:
The utility model relates to a kind of lockset, relates in particular to the lock head structure in the lockset.
2, background technology:
Majority is cylinder lock in the mechanical lock head that uses at present, is made up of housing and lock core.Lock core is a cylinder, and housing is overlapping lock core, is two-layer structure.Several pellet shot from a slingshot holes that has in lock core and housing upper edge axially-aligned correspondence.Housing pellet shot from a slingshot of a spring, a lock core marble are housed in each pellet shot from a slingshot hole.Under blocking, the housing pellet shot from a slingshot connects an end of lock core marble, inserts lock core in various degree, is stuck between housing and the lock core, and lock core can not be rotated.When inserting key, rugged spoon tooth is complementary with pellet shot from a slingshot different in size, makes the tie point of all housings and lock core marble all equal with the fitting face of lock core with housing, at this moment can rotational lock core, lockset is opened.The lock of this structure, when lock core was reversed as brute force by special instrument, the pellet shot from a slingshot that stops lock core to rotate can be twisted off, and makes this lock by unnormal unlocking, thereby loses anti-theft feature.
3, summary of the invention:
The purpose of this utility model is to provide a kind of anti-theft lock end that can overcome existing defective in the prior art.It adopts inside and outside lock core structure, and under locking states, internal cylinder can be rotated arbitrarily, and tapered end is not unlocked.Unnormal unlockings such as the brute force that can effectively defend to carry out at lock core is unblanked, technology unlocking, theftproof is high.
The utility model is achieved by the following technical solution:
It is by housing, be enclosed within formation such as rotary lock core and pellet shot from a slingshot in the housing, wherein: described lock core is by interior, outer lock core is formed, columniform internal cylinder is nested in the columnar outer lock core, have several main marble holes of row vertically in internal cylinder, a built-in spring and a main pellet shot from a slingshot, one end of spring connects bottom, pellet shot from a slingshot hole, the other end connects main pellet shot from a slingshot afterbody, the head of main pellet shot from a slingshot extend in the keyhole, described main pellet shot from a slingshot is cylindrical, its outside has a V-ring ditch, has a rectangle auxiliary marble hole vertically, the secondary pellet shot from a slingshot of built-in 1 rectangle strip body in internal cylinder corresponding to the position of main pellet shot from a slingshot V-ring ditch.Have one to several outer lock core pellet shot from a slingshot holes at outer lock core corresponding to the position of auxiliary marble hole, built-in one to several outer lock core pellets shot from a slingshot, have the housing lock hole with outer lock core pellet shot from a slingshot corresponding position, housing pellet shot from a slingshot hole several.Built-in housing spring, housing pellet shot from a slingshot, housing spring outer end is connected with housing, the housing pellet shot from a slingshot is being pressed in the inner, lock hole is stretched in the outer end of outer lock core pellet shot from a slingshot, join with the housing pellet shot from a slingshot, and be stuck on the fitting face of housing and outer lock core, the inner of outer lock core pellet shot from a slingshot is equal with the fitting face between internal cylinder and the outer lock core, and is connected with secondary pellet shot from a slingshot.The inner of secondary pellet shot from a slingshot is pressed on the outside of main pellet shot from a slingshot.
The lock core of the utility model theftproof lock is made up of inside and outside lock core, and inside and outside lock core fuses when unblanking, and twisting key turns internal cylinder can drive outer lock core and will lock unlatching.During locking, inside and outside lock core separates, and internal cylinder can be rotated arbitrarily, and this lock can not be unlocked.So this lock can effectively defend at the brute force that lock core carries out unblank, the improper means of unblanking such as technology unlocking.Its theftproof is much higher than the lock of prior art.
4, description of drawings:
Fig. 1 is the cut-away view of the blocking of a kind of embodiment of the utility model.
Fig. 2 is the cut-away view of the unlocking condition of a kind of embodiment of the utility model.
Fig. 3 is the A-A cut-away view of Fig. 1.
Fig. 4 is the cut-away view of second kind of embodiment of the present utility model.
5, the specific embodiment:
Fig. 1-3 illustrated embodiment theftproof lock is by housing 1, outer lock core 2, internal cylinder 3, internal cylinder master's pellet shot from a slingshot 4, the secondary pellet shot from a slingshot 5 of internal cylinder, outer lock core pellet shot from a slingshot 6, housing pellet shot from a slingshot 7 compositions such as grade, it is characterized in that internal cylinder has several main marble holes 8 vertically, put into a spring 12, a main pellet shot from a slingshot 4, main pellet shot from a slingshot 4 afterbodys are being pressed spring 12, head extend in the keyhole 16, main pellet shot from a slingshot 4 is a cylinder, the outside has a V-ring ditch 15, have a rectangle auxiliary marble hole 9 in internal cylinder 3 vertically corresponding to the direction of V-ring ditch 15, the secondary pellet shot from a slingshot 5 of a built-in rectangle strip, have outer lock core pellet shot from a slingshot hole 10,1 to several at outer lock core 2 corresponding to internal cylinder auxiliary marble hole 9 places, built-in 1 to several cylindrical outer lock core pellets shot from a slingshot 6, housing 1 has 1 to several lock holes 14 and housing pellet shot from a slingshot hole 11 corresponding to 10 places, outer lock core pellet shot from a slingshot hole, lock hole 14 is the same with housing pellet shot from a slingshot hole 11 shapes, communicates, and combines together, put into 13, one housing pellets shot from a slingshot 7 of 1 housing spring in the housing pellet shot from a slingshot hole 11.
When no key inserts, main pellet shot from a slingshot 4 moves to keyhole 16 under the effect of spring 12, its V-ring ditch 15 departs from auxiliary marble hole 9, secondary pellet shot from a slingshot 5 is compeled on the top, make the outer lock core pellet shot from a slingshot 6 on secondary pellet shot from a slingshot 5 and the coupled same straight line, housing pellet shot from a slingshot 7 outwards moves together, make the equal fitting face between internal cylinder 3 and outer lock core 2 of secondary pellet shot from a slingshot 5 with the tie point between the outer lock core pellet shot from a slingshot 6, then insert among the lock hole 14 of housing the outer end of outer lock core pellet shot from a slingshot 6 simultaneously, be stuck on the fitting face between outer lock core 2 and the housing 1, outer lock core 2 can not be rotated, be in blocking.Block without any object on the fitting face between internal cylinder 3 and the outer lock core 2 at this moment, be in released state fully, internal cylinder 3 can be rotated arbitrarily, and this lock can not be unlocked.
When unblanking, when key 17 inserts, under the promotion of spoon tooth, main pellet shot from a slingshot 4 moves inwards, its V-ring ditch 15 all aligns auxiliary marble hole 9, under the effect of housing spring 13, housing pellet shot from a slingshot 7, outer core pellet shot from a slingshot 6, secondary pellet shot from a slingshot 5 moves together inwards, the inner of secondary pellet shot from a slingshot 5 enters into the V-ring ditch 15 of main pellet shot from a slingshot 4, and its outer end is lower than the surface of internal cylinder 3, and the inner of coupled outer lock core pellet shot from a slingshot 6 is inserted into internal cylinder 3 simultaneously, be stuck between internal cylinder 3 and the outer lock core 2, the two is connected as a single entity, and lock hole 14 is then withdrawed from its outer end, and is equal with the fitting face between housing 1 and the outer lock core 2.At this moment, no any object blocks between housing 1 and the outer lock core 2 will be locked unlatching as long as twisting key 17 rotation internal cylinder 3 just can drive outer lock core 2.
Second embodiment theftproof lock shown in Figure 4, and the difference of Fig. 1-3 illustrated embodiment theftproof lock is as follows: outer lock core pellet shot from a slingshot 6 quantity are 1, be shaped as the rectangle strip, have the pellet shot from a slingshot hole 10 that matches on the outer lock core 2, the lock hole 14 of housing 1 also is complementary with its shape.