CN201133134Y

CN201133134Y - Double-safety anti-theft lock

Info

Publication number: CN201133134Y
Application number: CNU2007203028305U
Authority: CN
Inventors: 张汉平
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-12-06
Filing date: 2007-12-06
Publication date: 2008-10-15
Anticipated expiration: 2017-12-06

Abstract

The utility model relates to a dual-insurance antitheft lock, and comprises a shell and a rotating lock core that is arranged inside the shell, wherein, a plurality of billiard insurance closing components are arranged between the shell and the lock core; the inner end part of the lock core is interlocked with an action shifting element for cooperation; a plurality of tiny through grooves are arranged on the side wall of the lock core and on the billiards in the vertical direction of the axis; a notched groove is arranged at the corresponding inner wall of the shell; a card with a small spring is arranged inside the tiny through groove; a ring groove is arranged on each billiard; the ring grooves stay at the same level after the billiards are inserted into the key and are inserted with the side edge of the card; a plurality of rolling balls are arranged inside the notched groove; the relative side edge of the card is provided with a plurality of notches that are relatively matched with the rolling balls to form a side-direction closing insurance mechanism. The billiard and the card are used as a dual-insurance mechanism on the two crossing directions, thereby having compact and reasonable structure, and being convenient to be produced and assembled, and being free from influencing the volume specification of the lock, and having strong university, and reducing the mutually-opening rate, and having excellent antitheft performance.

Description

The dual-safety anti-theft tapered end

Technical field:

The utility model relates to the tapered end that a kind of theftproof lock is used.

Background technology:

Now general anti-theft lock end all is to utilize pellet shot from a slingshot between housing and the lock core as insurance institution, and pellet shot from a slingshot is arranged in the same axis plane, and easily by technical unlocking, theftproof performance is not strong.If marble amount is few, mutual opening rate is increased.Also some tapered end adopts forms such as cross lock in addition, utilize crisscross array pellet shot from a slingshot as insurance, theftproof performance improves, but structure complexity also improves, the lock core volume must can assemble than the great talent, the specification of whole tapered end and common theftproof lock are not matched, and versatility is relatively poor, and cost of production is also higher.

Summary of the invention:

At the deficiencies in the prior art, the utility model provides a kind of compact conformation, the dual-safety anti-theft tapered end that theftproof performance is strong.

The lock core that the utility model comprises housing and is placed in one and rotates, it is sealed to be provided with many pieces of pellet shot from a slingshot insurances between housing and the lock core, the inner end portion of lock core and action dialing part are linked, on the sidewall of lock core, be provided with thin groove with the direction of each pellet shot from a slingshot axis normal, the corresponding position of inner walls then is provided with groove, the card that has little spring places thin groove, on each pellet shot from a slingshot, be equipped with an annular groove, the position of each annular groove after inserting key, become same level and and the side correspondence of card plug together, then be equipped with several balls in the groove, the respective side edge of card is provided with and each ball several breach of corresponding matching one by one, constitutes side direction engaging insurance institution.

The utility model be provided with pellet shot from a slingshot and card on two directions of intersecting as double safety mechanism, when having only the key of insertion to make each pellet shot from a slingshot be in the enable possition, card just can be retracted in the thin groove of lock core fully, lock core rotates and can not blocked by ball and groove.Compact conformation of the present utility model is reasonable, produces easy to assemblyly, does not influence the volume specification of tapered end, and highly versatile can reduce mutual opening rate, and theftproof performance is good.

Further specify the utility model below in conjunction with drawings and Examples.

Description of drawings:

Fig. 1 is the main structure schematic diagram of embodiment;

Fig. 2 is the A-A sectional view of Fig. 1;

Fig. 3 is the B-B sectional view of Fig. 1;

Fig. 4 is the main schematic diagram of lock core;

Fig. 5 is the main schematic diagram of pellet shot from a slingshot;

Fig. 6 is the main schematic diagram of card;

Fig. 7 is that Fig. 1 inserts key operated schematic diagram;

Fig. 8 is that Fig. 3 inserts key operated schematic diagram;

Fig. 9 is that Fig. 2 inserts key operated schematic diagram.

Embodiment: to shown in Figure 6, lock core 2 places housing 1 to rotate as Fig. 1, and it is sealed to be provided with 3 insurances of many pieces of pellets shot from a slingshot between housing 1 and the lock core 2, and the inner end portion of lock core 2 and action dialing part 4 are linked.On the sidewall of lock core 2 and the direction of each pellet shot from a slingshot 3 axis normal be provided with thin groove 5, the corresponding position of housing 1 inwall then is provided with groove 6, the card 8 that has little spring 7 places thin groove 5, on each pellet shot from a slingshot 3, be equipped with an annular groove 11, the position of each annular groove 11 after inserting key, become same level and and the side correspondence of card 8 plug together.Then be equipped with several balls 9 in the groove 6, the respective side edge of card 8 is provided with and each ball 9 several breach 10 of corresponding matching one by one, constitutes side direction engaging insurance institution.

Do not insert when key operated, the annular groove 11 of each pellet shot from a slingshot 3 is not positioned on the same level, the side of card 8 can't plug together with the annular groove 11 of each pellet shot from a slingshot 3, be that card 8 can't be retracted in the thin groove 5 of lock core 2 fully, card 8 is natural external pressure under little spring 7 effects, the side of card 8 is blocked by the ball 9 in the groove 6 like this, makes lock core 2 be pinned the formation dual fail-safe in two directions respectively by pellet shot from a slingshot 3 and card 8, and theftproof performance is better.Each breach 10 positional alignment of card 8 can be adjusted production on demand, so also can reduce mutual opening rate.

After inserting key, extremely shown in Figure 9 as Fig. 7, each pellet shot from a slingshot 3 is forced into the position of unlatching, annular groove 11 on each pellet shot from a slingshot 3 also is positioned on the same horizontal plane simultaneously, when lock core 2 is rotated, card 8 is also pressed in naturally by ball 9, and its side plugs together in each annular groove 11, and whole like this card 8 can recede in the thin groove 5 of lock core 2 and rotate thereupon.

Be equipped with several false grooves 12 parallel on each pellet shot from a slingshot 3 of present embodiment, can by technical unlocking the time, cause the feel mistake like this, think to reach annular groove 11 positions, further improved theftproof performance with annular groove 11.Generally can give the assembly space of pellet shot from a slingshot 3 bigger like this with the keyhole relative set of lock core 2 at the edge, permutation and combination be many, and it is also easier to produce.In the reality, theftproof lock generally needs inside and outside two being arranged, lock core 2 in the housing 1 of present embodiment has two, the coaxial two ends that are arranged on housing 1, corresponding card 8, groove 6, pellet shot from a slingshot 3, ball 9 all have two covers, constitute the double-open tapered end, at Nei Kai or external-open state dual fail-safe is arranged all like this, safe and reliable.

Claims

1, a kind of dual-safety anti-theft tapered end, the lock core that comprises housing and be placed in one and rotate, it is sealed to be provided with many pieces of pellet shot from a slingshot insurances between housing and the lock core, the inner end portion of lock core and action dialing part are linked, it is characterized by: on the sidewall of lock core (2), be provided with thin groove (5) with the direction of each pellet shot from a slingshot (3) axis normal, the corresponding position of housing (1) inwall then is provided with groove (6), the card (8) that has little spring (7) places thin groove (5), on each pellet shot from a slingshot (3), be equipped with an annular groove (11), the position of each annular groove (11) after inserting key, become same level and and the side correspondence of card (8) plug together, then be equipped with several balls (9) in the groove (6), the respective side edge of card (8) is provided with and each ball (9) several breach (10) of corresponding matching one by one, constitutes side direction engaging insurance institution.

2, dual-safety anti-theft tapered end according to claim 1 is characterized by: be equipped with several false grooves (12) parallel with annular groove (11) on each pellet shot from a slingshot (3).

3, dual-safety anti-theft tapered end according to claim 1 and 2, it is characterized by: the lock core (2) in the housing (1) has two, the coaxial two ends that are arranged on housing (1), corresponding card (8), groove (6), pellet shot from a slingshot (3), ball (9) all have two covers, constitute the double-open tapered end.