CN102704752A

CN102704752A - Anti-theft lock

Info

Publication number: CN102704752A
Application number: CN2012102086192A
Authority: CN
Inventors: 魏建军; 魏嘉琦; 李梦琦; 张嵛杰
Original assignee: PINGDINGSHAN DINGFU LOCK INDUSTRY TECHNOLOGY CO LTD
Current assignee: PINGDINGSHAN DINGFU LOCK INDUSTRY TECHNOLOGY CO LTD
Priority date: 2012-06-25
Filing date: 2012-06-25
Publication date: 2012-10-03
Anticipated expiration: 2032-06-25
Also published as: CN102704752B

Abstract

The invention relates to an anti-theft lock, which can be used for effectively solving the problems of complicated structure and poor anti-theft effect of a pin tumbler lock. The technical scheme adopted by the invention is as follows: the anti-theft lock comprises a lock body and a lock core, the lock core is mounted in the center of the lock body, a moving ball braking hole is formed in the internal wall of the lower part of the lock body, first moving ball holes are formed in the center of the lock core in the transverse direction, second moving ball holes communicated with the first moving ball holes are formed in the lower part of the lock core, the center line of the first moving ball holes is vertical to that of the second moving ball holes, a keyhole, which is located above the first moving ball holes and is communicated with the first moving ball holes, is formed in the upper part of the lock core, first moving balls, which can move leftwards and rightwards, are mounted in the first moving ball holes, a cylindrical bulged part, which extends into the keyhole, is arranged at the upper part of each first moving ball hole, the lower part of each first moving ball hole is provided with a plurality of clamping grooves, and second moving balls, which can move upwards and downwards, are mounted in the second moving ball holes. The anti-theft lock has the advantages of novel, unique and simple structure, easiness in operation, strong anti-theft function and low cost, and accordingly has excellent social and economic benefits.

Description

Theftproof lock

Technical field

The present invention relates to lockset, particularly a kind of theftproof lock.

Background technology

Lock is common anti-theft tool.Cylinder lock is simple in structure with it, practical and be widely used.The structure of cylinder lock is roughly the same, and one group of cylinder-shaped marble promptly is housed in the pellet shot from a slingshot hole of lock core, has the tartar of respective depth on the key.The mode of unblanking is also roughly the same, and promptly the height difference through key tooth flower moves up and down the corresponding pellet shot from a slingshot of post, makes the height of each lock core marble all be in the interface place on lock shell and the lock core, and screw key drives lock core then, reaches the purpose of unblanking.This class is latched in the moving tooth passage, and under the situation of not bumping the son of moving, foreign matter can get into keyhole the inner easily, probes into various unlocking tools through the moving tooth passage, carries out skilled unlocking.This kind structure has been wasted the effective travel of pellet shot from a slingshot simultaneously, and the lockset key density is diminished, and is opened by the locksmith easily, and safety is relatively poor.In view of above defective, people have developed the blade lock.The principle of blade lock is exactly to utilize on the key bevel angle to change different tartars to rotate that angle changes different blades in the alignment lock core, thereby realizes a kind of lock that lock core rotarily opens.Chinese patent 200810031948.8,201020682555.6,200920303724.8 etc. all discloses the blade lock with anti-theft feature.But the disclosed blade of above-mentioned patent is latched in defectives such as complex structure, fault rate height, and can not prevent technical unlocking effectively, and anti-theft effect is also not fully up to expectations.So improve and innovate imperative.

Summary of the invention

To above-mentioned situation, for overcoming the defective of prior art, the present invention's purpose just provides a kind of theftproof lock, can effectively solve the billiards lock structure complicacy, the problem of anti-theft effect difference.

The technical scheme that the present invention solves is, comprises lock body and lock core, and lock core is contained in the lock body intracardiac; Mobile pearl brake hole is arranged on the lock body lower inner wall; The lock core central cross has first to move the hole of bead, the lock core bottom have with first move that the hole of bead is connected second move the hole of bead, first move the hole of bead center line and second to move the center line in the hole of bead vertical; Have in the lock core top and be positioned at first and move hole of bead top; And move the keyhole that the hole of bead is connected with first, but first move and first of move left and right is housed in the hole of bead moves pearl, first moves pearl top has the cylindrical protrusions that stretches into keyhole; First moves on the bottom of pearl some draw-in grooves is arranged; Second moves and is equipped with moving up and down second in the hole of bead and moves pearl, and second moves pearl top has and the corresponding to convexity of draw-in groove shape, and second moves the pearl bottom has and equal the corresponding to cambered surface of pearl brake hole shape.

Novel structure of the present invention is unique, and simple in structure, easy to operate, anti-theft feature is strong, and cost is low, and good society and economic benefit are arranged.

Description of drawings

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

Fig. 2 moves the structural front view of pearl for the present invention first.

Fig. 3 moves the structural front view of pearl for the present invention second.

Fig. 4 is the structural front view of lock body of the present invention.

Fig. 5 is the structure left view of lock body of the present invention.

Fig. 6 is the structural front view of lock core of the present invention.

Fig. 7 is the structure left view of lock core of the present invention.

Fig. 8 is the structure vertical view of lock core of the present invention.

The specific embodiment

Do further explain below in conjunction with the accompanying drawing specific embodiments of the invention.

Provided by Fig. 1-Fig. 8, comprise lock body and lock core, lock core 2 is contained in the lock body 1 intracardiac; Mobile pearl brake hole 5 is arranged on lock body 1 lower inner wall; Lock core 2 central cross have first to move the hole of bead 6, lock core 2 bottoms have with first move that the hole of bead 6 is connected second move the center line and second that moves the hole of bead 6 in the hole of bead 7, the first to move the center line in the hole of bead 7 vertical; Have in lock core 2 tops and be positioned at first and move 6 tops, the hole of bead; And move the keyhole 8 that the hole of bead 6 is connected with first, but first moves and first of move left and right is housed in the hole of bead 6 moves pearl 3, the first and move pearl 3 tops the cylindrical protrusions 12 that stretches into keyhole 8 is arranged; First moves on the bottom of pearl 3 some draw-in grooves 9 is arranged; Second moves and is equipped with moving up and down second in the hole of bead 7 and moves pearl 4, the second and move pearl 4 tops and have and move pearl 4 bottoms with draw-in groove 9 shapes corresponding to protruding 11, the second and have and equal the corresponding to cambered surface 10 of pearl brake hole 5 shapes.

In order to guarantee result of use, described protruding 11 is conical;

Described draw-in groove 9 is inverted " V " font;

The convexity 11 that only has a draw-in groove and second to move pearl 4 tops in described some draw-in grooves 9 is complementary, and with the degree of depth of protruding 11 draw-in grooves that are complementary the degree of depth greater than other draw-in grooves;

Described first moves pearl 3 and second moves pearl 4 parallel several that are uniformly distributed with is arranged, and each all places in the corresponding mobile hole of bead, each first move a maximum draw-in groove of the pearl 3 bottom degree of depth the position stagger successively.

Mode of occupation of the present invention is:

The normal unlatching; After key inserts, each first move pearl 3 tops cylindrical protrusions 12 can move to corresponding to position according to the serpentine track that is complementary on the key, this moment each first move pearl 3 bottoms and second move pearl 4 upper lobes 11 corresponding to draw-in grooves place second move the hole of bead 7 directly over; Screw key drives lock core 2 rotations; Under the effect of thrust, make second to move pearl 4 and move the hole of bead 7 along second and move to the direction of draw-in groove, because it is consistent with the shape of draw-in groove to move the convexity 11 on pearl 4 tops this moment second, second moves pearl 4 can withdraw from fully and move pearl brake hole 5; Therefore rotary locking cylinder 2 is smoothly accomplished normally unlatching.

Unnormal unlocking (antitheft):

When attempting to stir some first by foreign matter when moving pearl 3; Move pearl 4 and under the self gravitation effect, drop in the mobile pearl brake hole 5 on lock body 1 inwall this moment second; And lock body is no spring design; Move pearl 3 can expeditely move move left and right in the hole of bead 6 first this moment first, make the operator can't locate this first move pearl 3 the position; When attempting rotary locking cylinder 2 by foreign matter; Inevitable under the effect of thrust, can cause all second to move pearl 4 edges second and move the hole of bead 7 and move to draw-in groove 9 directions; At this moment, second move pearl 4 tops convexity 11 get into first and move the more shallow draw-in groove of pearl 3 bottoms, cause second to move pearl 4 and can't withdraw from the mobile pearl brake hole 5 on the lock body 1 fully; Thereby can't rotary locking cylinder, do not reach purpose of opening.

Claims

1. theftproof lock; Comprise lock body and lock core, it is characterized in that lock core (2) is contained in the lock body (1) intracardiac; On lock body (1) lower inner wall mobile pearl brake hole (5) is arranged; Lock core (2) central cross has first to move the hole of bead (6), lock core (2) bottom have with first move that the hole of bead (6) is connected second move the hole of bead (7), first move the hole of bead (6) center line and second to move the center line in the hole of bead (7) vertical; Have in lock core (2) top and be positioned at first and move the hole of bead (6) top; And move the keyhole (8) that the hole of bead (6) is connected with first, first move the hole of bead (6) but in first of move left and right be housed move pearl (3), first moves pearl (3) top has the cylindrical protrusions (12) that stretches into keyhole (8); First moves on the bottom of pearl (3) some draw-in grooves (9) is arranged; Second moves and is equipped with moving up and down second in the hole of bead (7) and moves pearl (4), and second moves pearl (4) top has and the corresponding to convexity of draw-in groove (9) shape (11), and second moves pearl (4) bottom has and equal the corresponding to cambered surface of pearl brake hole (5) shape (10).

2. theftproof lock according to claim 1 is characterized in that, described convexity (11) is conical.

3. theftproof lock according to claim 1 is characterized in that, described draw-in groove (9) is inverted " V " font.

4. theftproof lock according to claim 1; It is characterized in that; The convexity (11) that only has a draw-in groove and second to move pearl (4) top in described some draw-in grooves (9) is complementary, and the degree of depth of the draw-in groove that is complementary with protruding (11) is greater than the degree of depth of other draw-in grooves.

5. according to claim 1 or 4 described theftproof locks; It is characterized in that; Described first moves pearl (3) and second moves pearl (4) parallel several that are uniformly distributed with is arranged; Each all places in the corresponding mobile hole of bead, each first move a maximum draw-in groove of pearl (3) the bottom degree of depth the position stagger successively.