CN101265757A - Special-shaped marble idle rotation lock head - Google Patents

Abstract

The invention discloses a special shaped pin tumbler idling lock, which comprises a housing, a front lock core, a rear lock core and a special shaped pin. The front lock core and the rear lock core are sleeved in the housing. A plurality of pin holes in 1 to 2 rows are opened in a longitudinal direction of the front lock core, a spring and a special shaped pin are put in each pin hole. A ward protruding into the key hole is provided at the edge of each special shaped pin. A V-shaped notch is provided on the back of each special shaped pin corresponding to a sub-pin groove accommodating a sub-pin in the V-shaped notch position of each special shaped pin. A plurality of wards are provided at the inner end of the sub-pin, a front clutch keyway is provided at the tail part of the front lock core. A rear clutch keyway is provided in the position corresponding to the front clutch keyway. A spring and a clutch pin are arranged in the rear clutch keyway. A locking groove is provided in the position corresponding to the clutch keyway in the housing. When the idling lock is locked, the front lock core is in an idling state, the inserted foreign body or unlocking tool can freely rotate the front lock core, but is unable to unlock, therefore, the idling lock has high anti-theft performance.

Description

A kind of special-shaped marble idle rotation lock head

Technical field:

The present invention relates to a kind of lock, in particular, it relates to a kind of marble idle rotation lock head.

Background technology:

Existing ball lock head majority by housing, be enclosed within that rotating lock core and pellet shot from a slingshot etc. thereof constitute in the housing, housing corresponding with lock core have several pellet shot from a slingshot holes, a spring is put in each pellet shot from a slingshot hole, a housing pellet shot from a slingshot, a lock core marble.During locking, housing pellet shot from a slingshot insertion lock core in various degree is stuck in prevention lock core rotation between housing and the lock core.The lock of this structure can be twisted off when lock core is inserted the pellet shot from a slingshot that stops lock core to rotate when keyhole is done powerful reversing by special instrument, makes this lock lose anti-theft feature.

Summary of the invention:

The purpose of this invention is to provide a kind of special-shaped marble idle rotation lock head that can overcome existing defective in the prior art, its lock core is in idling conditions when locking, insert unlocking tool or other objects, can rotational lock core but this lock be not unlocked, have improper functions of unblanking such as the defence brute force is unblanked, technology unlocking, theftproof is very good.

The present invention is achieved by the following technical solution: it comprises housing, preceding lock core, rear lock core, special-shaped marble etc., lock core before described, rear lock core is enclosed within the housing, rear lock core is the main body of unblanking, vertically have one to two several pellet shot from a slingshot holes of row at preceding lock core, put into a spring in each pellet shot from a slingshot hole, a special-shaped marble, there is a small lugs to stretch in the keyhole on the limit of special-shaped marble, the back side of special-shaped marble has the V-type notch, position corresponding to special-shaped marble V-type notch vertically has secondary bullet groove, the afterbody of lock core before secondary bullet groove extends to, built-in secondary pellet shot from a slingshot, the inner of secondary pellet shot from a slingshot is provided with several projections, and each projection is connected with the back side of special-shaped marble corresponding to a special-shaped marble, joint face is protruding V-type, clutch cotter way before the afterbody of preceding lock core has has back clutch cotter way, a built-in spring at rear lock core corresponding to preceding clutch cotter way, an on-of pin has lock slots corresponding to back clutch cotter way place in housing.

Special-shaped marble idle rotation lock head of the present invention is in idling conditions when locking, when inserting, foreign matter or unlocking tool can rotate preceding lock core arbitrarily, but can not unblank, so this lock can effectively be defendd improper means of unblanking such as brute force is unblanked, technology unlocking, theftproof is very high.

Description of drawings:

Fig. 1 is the cross section view of one embodiment of the invention;

Fig. 2 is the left pseudosection of Fig. 1;

Fig. 3 is the cross section view of Fig. 1 embodiment unlocking condition;

Fig. 4 is the left pseudosection of Fig. 3;

Fig. 5 is the left pseudosection of second embodiment of the present invention;

Fig. 6 is the front view of special-shaped marble of the present invention;

Fig. 7 is the vertical view of Fig. 6;

Fig. 8 is the left view of secondary pellet shot from a slingshot of the present invention;

Fig. 9 is the upward view of Fig. 8;

Figure 10 is the front view of rear lock core of the present invention;

Figure 11 is the left pseudosection of Figure 10;

Figure 12 is the front view of on-of pin of the present invention.

The specific embodiment:

Fig. 1-the 4th, first embodiment of the present invention is made of housing 1, preceding lock core 2, rear lock core 3, special-shaped marble 5 etc.Lock core 1 is preceding before described, rear lock core 2 after, be sleeved in the housing 1, rear lock core 3 is the main body of unblanking, vertically have several pellet shot from a slingshot holes 4 of row at preceding lock core 2, a spring 6 is put in each pellet shot from a slingshot hole 4, a special-shaped marble 5, there is a small lugs to stretch in the keyhole 8 on the limit of special-shaped marble 5, the back side of special-shaped marble 5 has V-type notch 19, vertically has secondary bullet groove 9, the afterbody of lock core 2 before secondary bullet groove 9 extends to corresponding to the position of the V-type notch 19 of special-shaped marble 5, built-in secondary pellet shot from a slingshot 10, the inner of secondary pellet shot from a slingshot 10 is provided with several projections 11, and each projection 11 is connected with the back side of special-shaped marble 5 corresponding to a special-shaped marble 5, joint face 12 is protruding V-type, clutch cotter way 13 before the afterbody of preceding lock core 2 has has back clutch cotter way 14, a built-in spring 18 at rear lock core 3 corresponding to preceding clutch cotter way 13, an on-of pin 15 has lock slots 17 corresponding to back clutch cotter way 14 places in housing 1.As Fig. 2, shown in Figure 3, when unblanking, key 16 inserts, the V-arrangement notch 19 of each special-shaped marble 5 is all to chief and vice pellet shot from a slingshot 10 under the effect of key 16, on-of pin 15 and secondary pellet shot from a slingshot 10 move together under the effect of spring 18, the joint face 12 of secondary pellet shot from a slingshot 10 enters in the V-arrangement notch 19 of special-shaped marble 5, the front end of on-of pin 15 inserts in the preceding clutch cotter way 13 of preceding lock core 2, lock core 2 and rear lock core 3 are connected as a single entity before making, simultaneously, the rear end of on-of pin 15 is withdrawed from from the lock slots 17 of housing 1, at this moment twists key 16 and just can unblank.During locking, extract key 16, special-shaped marble 5 outwards moves under the effect of spring 6, the V-arrangement notch 19 of special-shaped marble 5 departs from secondary pellet shot from a slingshot 10, the top is compeled secondary pellet shot from a slingshot 10 and is moved backward, secondary pellet shot from a slingshot 10 promotes on-of pin 15, the preceding clutch cotter way 13 of lock core 2 before the front end of on-of pin 15 is withdrawed from, preceding lock core 2 separates fully with rear lock core 3, and preceding lock core 2 is in idling conditions, and the lock slots 17 of housing 1 is inserted in the rear end of on-of pin 15,3 of rear lock cores are in the lock state, at this moment, insert unlocking tool or other objects and can rotate preceding lock core 2 arbitrarily, but can not unblank.

Fig. 5 is second embodiment of invention, and be with the difference of first embodiment shown in Fig. 1-4: preceding lock core 2 is equipped with two rejection type pellets shot from a slingshot 5.Two secondary pellets shot from a slingshot 10.

Claims (1)

1. A kind of special-shaped marble idle rotation lock head, by housing (1), preceding lock core (2), rear lock core (3), special-shaped marble formations such as (5), it is characterized in that: preceding lock core (2) is preceding, rear lock core (3) after be sleeved in the housing (1), rear lock core (3) is the main body of unblanking, vertically have one to two several pellet shot from a slingshot holes (4) of row at preceding lock core (2), a spring (6) is put in each pellet shot from a slingshot hole (4), a special-shaped marble (5), there is a small lugs (7) to stretch in the keyhole (8) on the limit of special-shaped marble (5), the back side of special-shaped marble (5) has V-type notch (19), position corresponding to the V-type notch (19) of special-shaped marble (5) vertically has the afterbody that the secondary bullet groove of secondary bullet groove (9) (9) extends to preceding lock core (2), built-in secondary pellet shot from a slingshot (10), the inner of secondary pellet shot from a slingshot (10) is provided with several projections (11), each projection (11) is connected corresponding to the back side of a special-shaped marble (5) with special-shaped marble (5), joint face (12) is protruding V-type, clutch cotter way (13) before the afterbody of preceding lock core (2) has, have back clutch cotter way (14) built-in springs (18) at rear lock core (3) corresponding to preceding clutch cotter way (13), an on-of pin (15) locates to have lock slots (17) corresponding to back clutch cotter way (14) in housing (1).

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