CN201011207Y

CN201011207Y - Anti-theft lock core

Info

Publication number: CN201011207Y
Application number: CNU2007201058151U
Authority: CN
Inventors: 胡粮
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-01-18
Filing date: 2007-01-18
Publication date: 2008-01-23
Anticipated expiration: 2017-01-18

Abstract

The utility model provides a lock core of an antitheft lock, comprising a lock core housing internally provided with a lock core having a key hole cooperating with a key. The lock core is further provided with a bolt, and the key is provided with a bolt slot contacting the bolt; a movable sleeve is arranged between the lock core and the lock core housing, whose inner wall is provided with a clip slot; the outer wall of the lock core is provided with a concave slot internally provided with a standard piece including a fixing ring outside, and the standard piece contacts the spring and the bolt; the back of the housing of the lock core is internally provided with a lock latch connecting block internally provided with a movable block with a spring hole which is internally provided with a top ball spring and a steel ball; besides, the movable sleeve is internally provided with a positioning ring with a steel ball hole contacting the steel ball, and a touching mouth is arranged on the movable block, which contacts the touching head of the lock core.

Description

Anti-theft lock core

Technical field

The utility model relates to lock core, particularly relates to a kind of anti-theft lock core, can replace existing various lock cylinders, as be applicable to various Safe locks, safe-guard door lock, lock etc.

Background technology

Along with the raising of living standard, people's awareness of safety is more and more higher, is that door, car, strongbox etc. all have been coupled with various theftproof locks.The security performance of lock depends primarily on the structure of lock core, existing lock core kind is a lot, but use the most generally still is cylinder lock, existing lock cylinder but exists following defective: the first, and after the pellet shot from a slingshot of lock core and bitting contact mutually, produce and rotate, when the angle that rotates to setting, lock is opened, and therefore, such lock is opened by foreign matter (as master key) easily; The second, owing to lock core contacts and can not rotate with the foreign matter that does not match, so destroyed by rigid rotation easily again; The 3rd, because of the restriction of pellet shot from a slingshot arrangement architecture, cylinder lock mutual opening rate height.

Summary of the invention

The purpose of this utility model is in order to overcome the shortcoming that prior art exists, to provide a kind of after inserting the key or foreign matter that does not match, can driving 360 ° of unrestricted rotations of lock core, but can not drive lock bolt, can't rigidly destroy, can not be opened by foreign matter, and the low anti-theft lock core of mutual opening rate.

The technical scheme of the utility model anti-theft lock core is: lock core shell is arranged, lock core is installed in the lock core shell, be shaped on keyhole in the lock core, keyhole matches with key, and pellet shot from a slingshot is installed in lock core, is being shaped on bullet groove on the key, bullet groove contacts with pellet shot from a slingshot, it is characterized in that between lock core and lock core shell movable sleeve being arranged, the movable sleeve inwall is shaped on draw-in groove, and the outer wall of lock core is shaped on groove, installation code sheet in the groove, standard film has retainer ring outward, and standard film contacts with spring and pellet shot from a slingshot, and the lock bolt contiguous block is installed in the rear portion of lock core shell, movable block is installed in the lock bolt contiguous block, be shaped on spring eye in the movable block, heading spring and steel ball are installed in the spring eye, centring ring is arranged in the movable sleeve, centring ring has steel ball hole, steel ball hole contacts with steel ball, is shaped on to bump on movable block to chew, and bumps to chew with meeting and discussing of lock core to contact.

Anti-theft lock core of the present utility model is during work, behind the keyhole of key insertion lock core, by the bullet groove of key with after pellet shot from a slingshot contacts, promote standard film by pellet shot from a slingshot, standard film all is attached in the groove of outer wall of lock core, makes standard film equal with outer wall of lock core, and do not snap in standard film in the draw-in groove of movable sleeve, steel ball contacts with steel ball hole, make lock core meet and discuss with movable block on bump to chew and contact rotational lock core, drive the rotation of movable block and lock bolt contiguous block, at this moment lock is opened.But when insertion is not original key or foreign matter (as false key), though pellet shot from a slingshot also is pushed into, but because the bullet groove degree of depth of the bullet groove degree of depth on the foreign matter and original key is inconsistent, standard film is pushed back and outer wall of lock core irrelevancy, there is retainer ring to fix in the middle of the standard film, so being fulcrum with the retainer ring, standard film produces, arbitrary end all may be stuck in the draw-in groove, behind rotational lock core, and then 360 ° of rotations of movable sleeve are because the rotating band of movable sleeve centring ring, certain angle but lock core and movable sleeve (comprising centring ring) stagger, steel ball is deviate from from steel ball hole, and following pressing spring promotes movable block makes movable block produce displacement, on the lock core meet and discuss and bumping of movable block chewed not on same circumference, both can not contact, thereby the lock bolt contiguous block does not rotate, and can not drive lock bolt, and lock is not opened.

Anti-theft lock core of the present utility model, the groove number of the groove of its described outer wall of lock core are 5-50, and the groove number of groove is many more, and the standard film that can place is just many more, can reduce mutual opening rate greatly.The groove number of the groove of its described outer wall of lock core is 8-25, because the size of lock core restriction and easily manufactured in order to install, the optimum value of opening at the groove groove number of outer wall of lock core is 8-25.The standard film of installing in its described groove is a slice or more than two or two, promptly by the head and the tail order a slice or the standard film more than two or two is installed in a groove.Its described movable sleeve and centring ring are made one, process the material-saving that saves time.Its described key is the cylindrical of hollow, the bullet groove of cylindrical outer wall is two rows, keyhole is a circular hole, circular hole matches with cylindrical key, promote standard film by bullet groove with contacting of pellet shot from a slingshot, key and keyhole are cooperating of cylindrical and circular hole, can make lock core produce 360 ° of unrestricted rotations, thereby not be subjected to extraneous rigid destruction.Be shaped on jack in its described keyhole, be shaped on card at the key outer wall, card matches with jack, so just can make cylindrical key drive the lock core rotation.It is characterized in that in lock core the rotary spacing pin is installed, be shaped on spacing hole in movable sleeve, spacer pin matches with spacing hole, and spacer pin connection lock core and movable sleeve help draw-in groove on the movable sleeve and the groove on the lock core and reset, and are convenient to extract key.

Description of drawings

Fig. 1 is the structural representation of the utility model anti-theft lock core;

Fig. 2 is the A-A schematic cross-section of the utility model anti-theft lock core.

The specific embodiment

The utility model relates to anti-theft lock core, as Fig. 1, shown in Figure 2, lock core shell 8 is arranged, lock core 2 is installed in the lock core shell 8, be shaped on keyhole 20 in the lock core, keyhole matches with key 1, and pellet shot from a slingshot 6 is installed in lock core 2, is shaped on bullet groove 21 on key 1, bullet groove 21 contacts with pellet shot from a slingshot, it is characterized in that between lock core 2 and lock core shell 8 movable sleeve 7 being arranged, movable sleeve 7 inwalls are shaped on draw-in groove 28, and the outer wall of lock core 2 is shaped on groove 23, installation code sheet 5 in the groove 23, outside the standard film 5 retainer ring 4 is arranged, standard film contacts with spring 3 and pellet shot from a slingshot 6, and lock bolt contiguous block 15 is installed in the rear portion of lock core shell 8, movable block 9 is installed in the lock bolt contiguous block 15, be shaped on spring eye 24 in the movable block 9, heading spring 10 and steel ball 14 are installed in the spring eye 24, centring ring 71 is arranged in the movable sleeve 7, centring ring has steel ball hole 27, steel ball hole 27 contacts with steel ball 14, is shaped on to bump on movable block 9 and chews 25, bumps to chew 25 and 16 contact with meeting and discussing of lock core 2.During work, after key 1 inserts the keyhole 20 of lock core 2, by the bullet groove 21 of key 1 with after pellet shot from a slingshot 6 contacts, promote standard film 5 by pellet shot from a slingshot 6, spring 3 is compressed, make standard film 5 equal with the outer wall of lock core 2, meeting and discussing on the lock core 2 16 chewed 25 and contacted and drive 15 rotations of movable block 9 and lock bolt contiguous block with bumping, and lock is opened.But when insertion is not original key or foreign matter (as false key), though pellet shot from a slingshot 6 also is pushed into, standard film 5 is pushed back and lock core 2 outer wall irrelevancies, standard film 5 is still in the draw-in groove 28 of movable sleeve 7, behind rotational lock core 2, movable sleeve 7 and then 360 ° of rotations, because the rotating band of movable sleeve 7 centring ring 71, certain angle but lock core 2 and movable sleeve 7 (comprising centring ring 71) stagger, steel ball 14 is deviate from from steel ball hole 27, and promotion movable block 9 makes movable block produce displacement, on the lock core 2 meet and discuss 16 with bumping of movable block 9 chew 25 not on same circumference, both can not contact, thus lock bolt contiguous block 15 does not rotate, can not drive lock bolt, lock is not opened.The groove number of the groove 23 of its described lock core 2 outer walls is 5-50, and the groove number of groove is many more, and the standard film that can place is just many more, can reduce mutual opening rate greatly.The groove number of the groove 23 of its described lock core 2 outer walls is 8-25, because the size of lock core 2 restriction and easily manufactured in order to install, the optimum value of opening at the groove groove number of outer wall of lock core is 8-25.The standard film of installing in its described groove 23 5 is a slices or more than two or two, in a groove, a plurality of standard films are installed after, can further reduce mutual opening rate.Its described movable sleeve 7 is made one with centring ring 71, processes the material-saving that saves time.Its described key 1 is the cylindrical of hollow, the bullet groove 21 of cylindrical outer wall is two rows, keyhole 20 is circular holes, circular hole matches with cylindrical key 1, promote standard film by bullet groove with contacting of pellet shot from a slingshot, key and keyhole are cooperating of cylindrical and circular hole, can make lock core produce 360 ° of unrestricted rotations, thereby not be subjected to extraneous rigid destruction.Be shaped on jack 30 in its described keyhole 20, be shaped on card 29 at key 1 outer wall, card 29 matches with jack 30, and this kind structure can drive the lock core rotation.Rotary spacing pin 11 is installed in its lock core 2, in movable sleeve 7, be shaped on spacing hole 26, spacer pin 11 matches with spacing hole 26, spacer pin 11 connects lock core 2 and movable sleeve 7, and draw-in groove 28 on the movable sleeve is resetted with groove 23 on the lock core (be exactly make draw-in groove 28 and groove 23 corresponding one by one), be convenient to extract key 1.

Claims

1. anti-theft lock core, lock core shell (8) is arranged, lock core (2) is installed in the lock core shell (8), be shaped on keyhole (20) in the lock core, keyhole matches with key (1), pellet shot from a slingshot (6) is installed in lock core (2), on key (1), be shaped on bullet groove (21), bullet groove (21) contacts with pellet shot from a slingshot, it is characterized in that between lock core (2) and lock core shell (8), movable sleeve (7) being arranged, movable sleeve (7) inwall is shaped on draw-in groove (28), the outer wall of lock core (2) is shaped on groove (23), installation code sheet (5) in the groove (23), retainer ring (4) is arranged outside the standard film (5), standard film contacts with spring (3) and pellet shot from a slingshot (6), lock bolt contiguous block (15) is installed in the rear portion of lock core shell (8), movable block (9) is installed in the lock bolt contiguous block (15), be shaped on spring eye (24) in the movable block (9), heading spring (10) and steel ball (14) are installed in the spring eye (24), centring ring (71) is arranged in the movable sleeve (7), and centring ring has steel ball hole (27), and steel ball hole (27) contacts with steel ball (14), on movable block (9), be shaped on to bump and chew (25), bump and chew (25) and contact with meet and discuss (16) of lock core (2).

2. anti-theft lock core as claimed in claim 1, the groove number that it is characterized in that the groove (23) of lock core (2) outer wall are 5-50.

3. anti-theft lock core as claimed in claim 1, the groove number that it is characterized in that the groove (23) of lock core (2) outer wall are 8-25.

4. anti-theft lock core as claimed in claim 2 is characterized in that the standard film of installing in the described groove (23) (5) is a slice or more than two or two.

5. anti-theft lock core as claimed in claim 1 is characterized in that described movable sleeve (7) and centring ring (71) make one.

6. anti-theft lock core as claimed in claim 1 is characterized in that described key (1) is the cylindrical of hollow, and the bullet groove of cylindrical outer wall (21) is two rows, and keyhole (20) is a circular hole, and circular hole matches with cylindrical key (1).

7. anti-theft lock core as claimed in claim 6 is characterized in that being shaped in the described keyhole (20) jack (30), is shaped on card (29) at key (1) outer wall, and card (29) matches with jack (30).

8. anti-theft lock core as claimed in claim 1 is characterized in that rotary spacing pin (11) is installed in lock core (2), is shaped on spacing hole (26) in movable sleeve (7), and spacer pin (11) matches with spacing hole (26).