CN1330842C

CN1330842C - Opening and prizing prevention lock

Info

Publication number: CN1330842C
Application number: CNB2005100332421A
Authority: CN
Inventors: 雷先鸣
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-02-07
Filing date: 2005-02-07
Publication date: 2007-08-08
Anticipated expiration: 2025-02-07
Also published as: CN1654768A

Abstract

The present invention discloses a lock head for unlocking prevention and picking prevention. A rotating sleeve is additionally arranged between a lock core and a lock body which are provided with a locking side pillar mechanism, and movable intermediate beads are arranged in the sleeve wall of the rotating sleeve; positioning holes are arranged on the inner wall of the lock body, flat beads and springs are arranged in the positioning holes, and a lock ruler is fixed on the rotating sleeve. When the lock head of the present invention is used, the positions of the movable intermediate beads in the rotating sleeve are changed under the different states (opening and closure), and the rotating sleeve can be connected with the lock core or the lock body; when the lock is unlocked by using a matching key, the rotating sleeve is driven to rotate; when the lock is unlocked by a non-matched key, the lock core only idly rotates corresponding to the lock body and the lock ruler, external force is unable of acting on the lock body and the lock ruler, and thus, the present invention thoroughly solves the difficult problems of strong unlocking and destructive unlocking. Compared with the existing lock head, the lock head of the present invention further improves the performance of technical unlocking and destructive picking.

Description

A kind of opening and prizing prevention lock

Technical field

The invention belongs to mechanical lockset, particularly relate to a kind of cylinder lock set that has locking side column.

Background technology

In the lockmaking field, work out and have the lockset that better prevents skilled unlocking and destructive picking lock performance, be the target that everybody pursues always.At this on the one hand, patent of invention ZL99115581.5 has made contribution preferably, its adopts the match locking side column mechanism of incompatible control lock core open and close of locking side column and V-shaped groove pellet shot from a slingshot is set on lock core, has solved the deadly defect of anti-technical unlocking of traditional mechanical cylinder lock and violence sled twistlock core preferably.But along with development of science and technology, the progress of tool used in crime two new problems occurred at the tapered end of ZL99115581.5 patent.The one, open phenomenon mutually, promptly use two keys that coding is very approaching, just lock tube might be opened.With encode 123456 and coding two keys of 223456 be example, the former is and the supporting key of lock, the latter is a non-matching key, their back five codings are identical, have only first difference, and differential very little between their first bit code 1 and 2, after non-matching key inserts lock core, V-shaped groove in the lock core on the pellet shot from a slingshot is in a straight line basically, have only with first is encoded to 2 corresponding pellets shot from a slingshot (pellet shot from a slingshot) on the key, V-shaped groove on it departs from this straight line a little, locking side column ∧ shape inboard on the lock core is goed deep in the V-shaped groove of pellet shot from a slingshot basically, and have only an end to rest on the trough rim of V-shaped groove of a pellet shot from a slingshot, the square outside of locking side column is withdrawn in the lock core in lock body basically, has only corresponding with pellet shot from a slingshot one to still have any to stay in the lock body, in this case, if firmly twist key back and forth, just the locking side column of staying in the lock body can be squeezed in the lock core, the realization brute force is unblanked.The 2nd, destructive (violence) unblanked.Progress along with science and technology, the material that some tool used in crime working strength is more and more higher, behind this class instrument insertion lock core, reverse lock core by force, when the intensity of instrument is enough big, just can with on the door fixedly the bolt of tapered end twist off, or after earlier the tapered end decoration ring of door or door being struck distortion with external force, again with the strong twistlock core of instrument, make fixedly that three eye plates of tapered end rotate with whole tapered end, all door can be opened.

Produce the reason of the problems referred to above: tapered end is when locking states, lock core and lock body are fixing as a whole by locking side column, when acting on lock core with external force, this power passes to lock body by locking side column, because lock body is by being bolted on the door, lock core is subjected to stopping of lock body and can not rotates, and the sword iron that cooperates with dead bolt then is fixed on the lock core, so sword iron can not rotate dead bolt is opened.As using non-matching key that lock is opened, just must overcome lock body to the resistance of lock core or overcome on door the fixedly resistance of the bolt of lock body with brute force, lock core is rotated.The common spring lock is then fixing as a whole with lock core and lock body with pellet shot from a slingshot.No matter any mechanical cylinder lock, why by force means are unblanked, and its basic reason just is that sword iron is fixed on the lock core, and can be subjected to the reaction force of lock body when rotational lock core.

Summary of the invention

In order to overcome the problem that prior art exists, the purpose of this invention is to provide a kind of under locking states, the opening and prizing prevention lock that lock core can freely rotate with respect to lock body and sword iron.

The present invention seeks to realize like this: opening and prizing prevention lock with patent of invention ZL99115581.5 as the basis, comprise lock body, be provided with the lock core of locking side column mechanism, also be fastened with sheath on the described lock core, position corresponding with locking side column on the sheath has slotted hole, between lock core and lock body, be provided with a turning set, have the perforation pin-and-hole on the turning set jacket wall, be placed with pearl in the activity in the pin-and-hole, the length of middle pearl is greater than the thickness of turning set jacket wall, on the lock body inwall, have locating hole with the corresponding position of the pin-and-hole of turning set, be placed with flat pearl and spring in the locating hole, sword iron is fixed on the turning set, adopt the axial limiting parts to link into an integrated entity between lock core and the turning set, from turning set, deviate to prevent lock core; The length that is positioned at the locking side column on the lock core is to determine like this, and under the lock closed condition (matched key is extracted out in lock core, and locking side column is outwards ejected by the V-shaped groove pellet shot from a slingshot), the lateral surface of locking side column is concordant with the external surface of lock core; The length of middle pearl is to determine like this, under the lock opening (after matched key inserts lock core, locking side column cooperates fully with the V-shaped groove pellet shot from a slingshot and contracts in lock core), the outer face of pearl was concordant with the external surface of turning set during the length of pearl just made during the length of locking side column added.

Operating principle of the present invention: insert matched key, when lock is in opening, pin-and-hole on the turning set and the locating hole on the lock body overlap, and align with the side column groove of placement locking side column on the lock core, locking side column ∧ shape inboard with lock core on the V-shaped groove of pellet shot from a slingshot overlap fully, its outside is from plug face indentation one segment distance, under the effect of lock body locating hole medi-spring peace pearl, middle pearl one end in the turning set pin-and-hole stretches into the interior and outer side contacts of locking side column of side column groove of lock core, one end is concordant with the external surface of turning set, because middle pearl is linked to be an integral body with lock core and turning set, and the contact surface in middle pearl and the lock body locating hole between the flat pearl overlaps with the contact surface of turning set and lock body, key just can drive turning set and rotate, and realizes unblanking thereby drive the sword iron that is fixed on the turning set.During the lock closed condition, owing to there is not matched key, locking side column ∧ shape inboard with lock core on the V-shaped groove of pellet shot from a slingshot can not overlap, locking side column is pressed to lock core outward by the V-shaped groove pellet shot from a slingshot and stretches out outward, its lateral surface is concordant with the lock core external surface, force the middle pearl in the turning set to stretch in the lock body simultaneously, because middle pearl is linked to be an integral body with turning set and lock body, and the contact surface between locking side column and the middle pearl overlaps with the contact surface of lock core and turning set, no matter what instrument to insert lock core with, lock core can freely rotate with respect to turning set and lock body.

In the technical solution of the present invention, owing between lock core and lock body, be provided with a turning set, and sword iron is fixed on the turning set, position by pearl in the activity in the change turning set under different conditions, make turning set be linked as an integral body with lock core or lock body respectively, can drive turning set when unblanking and rotate with matched key, and when using non-matching key to unblank, can only make lock core with respect to lock body and sword iron idle running, realize goal of the invention preferably.Also just because of tapered end of the present invention under locking states, lock core can be with respect to the characteristics of lock body and sword iron idle running, cut off when external force acts on lock core, lock core external force can be passed to lock body by way of, make external force can't act on lock body and sword iron, so just solved powerful unblanking and a destructive difficult problem of unblanking completely.Tapered end of the present invention is compared with existing tapered end, its prevent skilled unlocking and and the performance of destructive picking lock be further enhanced.

Further specify technical solution of the present invention below in conjunction with accompanying drawing.

Description of drawings

Fig. 1 is a sectional view of the present invention.

Fig. 2 is an A-A sectional view among Fig. 1.

Fig. 3 is the another kind of state sectional view of Fig. 2.

Fig. 4 is that sword iron is fixed on different modes schematic diagram on the turning set among the present invention.

The specific embodiment

The structure of opening and prizing prevention lock of the present invention is seen Fig. 1 and Fig. 2, one lock body 1 is arranged, lock core 5 is positioned at lock body 1, be provided with the pellet shot from a slingshot 7 and the spring 3 of band V-shaped groove in the lock core 5, the locking side column 4 that cooperates with this pellet shot from a slingshot 7, V-shaped groove pellet shot from a slingshot 7 and locking side column 4 are formed locking side column mechanism, also be fastened with sheath 14 on the lock core 5, position corresponding with locking side column 4 on the sheath 14 has the perforation slotted hole, between lock core 5 and lock body 1, be provided with a turning set 2, have the perforation pin-and-hole on turning set 2 jacket walls, be placed with pearl 17 in the activity in the pin-and-hole, the length of middle pearl 17 is greater than the thickness of turning set 2 jacket walls, on lock body 1 inwall, have locating hole with the corresponding position of the pin-and-hole of turning set 2, be placed with flat pearl 16 and spring 15 in the locating hole, sword iron 10 is fixed on the turning set 2 by pressing plate 11 and screw 9, adopts axial limiting parts card 13 to link into an integrated entity between lock core 5 and the turning set 2, limiting component card 13 passes turning set 2 and matches with groove 8 on the lock core 5, and limiting component also can adopt other forms such as pin; The length that is positioned at the locking side column 4 on the lock core 5 is to determine like this, and under the lock closed condition (matched key 6 is extracted out in lock core 5, and locking side column 4 is outwards ejected by V-shaped groove pellet shot from a slingshot 7), the lateral surface of locking side column 4 is concordant with the external surface of lock core 5; The length of middle pearl 17 is to determine like this, under the lock opening (after matched key 6 inserts lock cores 5, locking side column 4 cooperates fully with V-shaped groove pellet shot from a slingshot 7 and contracts in lock core 5), the outer face of pearl 17 was concordant with the external surface of turning set 2 during the length of pearl 17 just made during the length of locking side column 4 added.Show among the figure that tapered end is in opening after inserting matched key 6, lock core 5 and turning set 2 are connected as a single entity by middle pearl 17, and lock core 5 can drive turning set 2 and sword iron 10 rotates.Shown in Figure 3, there is not matched key 6 to be in closed condition in the tapered end, turning set 2 and lock body 1 are connected as a single entity by middle pearl 17, and lock core 5 can freely rotate with respect to turning set 2 and lock body 1.

Sword iron 10 is fixed on the mode that also can adopt Fig. 4 on the turning set 2, is stuck in the groove 19 on the turning set 2 sword iron 10 is fixing with snap ring 18.

Claims

1, a kind of opening and prizing prevention lock, comprise lock body, be provided with the lock core of locking side column mechanism, it is characterized in that: also be fastened with sheath on the described lock core, the position corresponding with locking side column has the perforation slotted hole on the sheath, between the sheath of lock core and lock body, be provided with a turning set, have the perforation pin-and-hole on the turning set jacket wall, be placed with pearl in the activity in the pin-and-hole, the length of middle pearl is greater than the thickness of turning set jacket wall, on the lock body inwall, have locating hole with the corresponding position of the pin-and-hole of turning set, be placed with flat pearl and spring in the locating hole, sword iron is fixed on the turning set, adopts the axial limiting parts to link into an integrated entity between lock core and the turning set; The length that is positioned at the locking side column on the lock core is to determine like this, and under the lock closed condition, the lateral surface of locking side column is concordant with the external surface of lock core; The length of middle pearl is to determine like this, and under the lock opening, the length of pearl just made the outer face of middle pearl concordant with the external surface of turning set during the length of locking side column added.