CN1224789A

CN1224789A - Cylinder lock with composite ball device

Info

Publication number: CN1224789A
Application number: CN 99100531
Authority: CN
Inventors: 樊德宝; 李明
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-02-05
Filing date: 1999-02-05
Publication date: 1999-08-04

Abstract

The ball lock consists of lock body, lock core, ball hole in lock body, ball hole in lock core and ball spring and features that inside the ball hole in lock body and ball hole in lock core is assembled composite ball device comprising ball sleeve in lock body, ball core in lock body, ball core spring, ball sleeve in lock core and ball core in lock core. Under the action of the ball spring and the ball core spring the ball sleeve in lock body and the ball core in lock body insert separately into ball hole in lock core and ball sleeve in lock core, and this increased locking mechanism makes the lock more safe with low mutual opening rate and no malposition of lock body balls and lock core balls.

Description

A kind of cylinder lock with composite pellet device

The present invention relates to a kind of lock, specifically relate to a kind of cylinder lock.

The pellet shot from a slingshot of common cylinder lock all is a solid cylinder, be installed in the lock marble hole respectively, in the lock core marble hole, form the pellet shot from a slingshot group, one end of lock spring inserts lock core marble hole, the pinning lock core under the spring force effect of marble spring, just it can not rotate, thereby has realized the lock function of cylinder lock.The contacted end face of lock core marble and lock spring under the effect of original key, just in time is positioned at the interface place of lock body and lock core, the twisting key, and cylinder lock is opened.Since the structure of common cylinder lock and space boundary the quantity of pellet shot from a slingshot group, be one of important measures that reduce mutual opening rate and increase the pellet shot from a slingshot group.The pellet shot from a slingshot group of common cylinder lock, end face contact between pellet shot from a slingshot, promote lock core marble to the lock body direction in the time of with master key twisting lock core, when lock core marble and lock spring opposing end faces, when being in the interface of lock body and lock core, two relative end faces are under servo torque forces, two end surface dislocation of pellet shot from a slingshot, the variation that dislocation produces can be felt, when dislocation occurred in lock spring and ejected lock core marble hole by lock core marble, lock spring loses lock function made the common cylinder lock of unlocked by universal key become possibility.

Purpose of the present invention is in order to provide a kind of mutual opening rate low, to be difficult for by the cylinder lock of unlocked by universal key.

For achieving the above object, the invention provides a kind of cylinder lock with composite pellet device, comprise: lock body, lock core, lock marble hole, lock core marble hole, marble spring, described composite pellet device is the lock spring cover that also can slide in the hole by in the lock marble hole of packing into, pack into pellet shot from a slingshot core spring in the lock spring trepanning, the lock spring core of packing in the lock spring trepanning and can in the hole, slide, in the lock core marble hole of packing into and in the hole of the lock core marble that can in the hole, the slide cover and the lock core marble cover of packing into and the lock core marble core that can in the hole, slide constitute.Described lock core marble cover is towards the Kong Youyi limited step of lock core keyhole one end.Described lock core marble core has a boss can be with from lock core marble the hole of an end of step towards lock core keyhole one end to stretch out, and an end of pellet shot from a slingshot core spring is equipped with in the hole of described lock spring cover, is the cecum of limited step or blind hole.

The hole of described lock spring core is the cecum of limited step or blind hole towards an end of lock core, the spring force of described pellet shot from a slingshot core spring is less than the spring force of marble spring, the spring force of described pellet shot from a slingshot core spring acts on interior limited step of lock spring trepanning and the limited step in the lock spring core hole respectively, described lock spring cover can slide in lock core marble hole, the lock spring core can slide in the hole of lock core marble cover, the lock core marble cover can slide in lock marble hole, and the lock core marble core can slide in the hole of lock spring cover.

The present invention has the cylinder lock of composite pellet device, when entering opening, insert original key, key bit is the corresponding lock core marble of jack-up cover and the lock core marble core overlaps lock core marble and the lock core marble core moves to the interface place of lock body and lock core on the end face of lock body direction respectively, key, realize purpose of opening, when entering lock-out state, lock spring is enclosed within the end that the lock spring core is housed under the spring force effect of marble spring and enters lock core marble hole, simultaneously, an end that enters the lock core marble core of lock core marble hole enters under the spring force effect of pellet shot from a slingshot core spring in the hole of lock core marble cover, the inwall of lock core marble cover has sealed lock spring core and the contacted end face of lock core marble core, the lock spring core lock spring cover and lock core marble trepanning inner sealing lock spring overlap and lock core marble overlaps contacted end face, lock spring covers into lock core marble hole, pinning lock body and lock core are the realizations of a lock function, the lock spring core enters the lock core marble cover after entering lock core under the spring force effect of pellet shot from a slingshot core spring, be that another lock function is realized.

The cylinder lock that the present invention has a composite pellet device, has increased locking mechanism, thereby has reduced mutual opening rate in identical space than common cylinder lock.Twist lock core with master key, promote lock core marble cover and lock core marble core, lock core marble cover and the relative end face that contacts of lock spring cover, when being pushed the interface that moves to the lock body lock core, lock core marble core or lock spring core have sealed the connect endoporus of contravention of lock spring cover and lock core marble cover, avoid the end face radial misalignments, make to rely on variation that dislocation takes place and situation in the perception lock, the cylinder lock that has the composite pellet device with unlocked by universal key is difficult to realize, thereby has realized being difficult for by the purpose of unlocked by universal key.

Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.

Fig. 1 is the cylinder lock that the present invention has the composite pellet device, the sectional view when the enable possition;

Fig. 2 is the cutaway view Amplified image of Fig. 1 along the A-A line;

Fig. 3 is the sectional view of the present invention when latched position.

From Fig. 1 to embodiment of the present invention shown in Figure 3 as can be seen the present invention by lock body 6, lock marble hole 2, lock core 8, lock core marble hole 13, marble spring 1 and the composite pellet device that is installed in lock marble hole 2 and the lock core marble hole 14 constitute.Described composite pellet device comprises: be contained in the lock spring cover 3 that has stepped hole 4 in the lock marble hole 2, be contained in lock spring and overlap pellet shot from a slingshot core spring 5 in 3 stepped holes 4, be contained in lock spring and overlap the lock spring core 7 that has blind hole 17 in 3 stepped holes 4, be contained in the lock core marble cover 9 that has stepped hole 13 in the lock core marble hole 14 and be contained in lock core marble and overlap the lock core marble core 10 that has boss 18 in 9 stepped holes 13.Lock core marble cover 3 can slide in lock core marble hole 14 and lock marble hole 2, lock spring cover 3 can slide in lock marble hole 2 and lock core marble hole 14, lock core marble core 10 can overlap 9 stepped holes 13 and lock spring at lock core marble and overlap in 3 stepped holes 4 and slide, lock spring core 7 can overlap 3 stepped holes 4 and lock core marble at lock spring and overlap in 9 stepped holes 13 and slide, the spring force of described pellet shot from a slingshot core spring 5 is less than the spring force of described marble spring 1, one end of described marble spring 1 acts on lock body 6, its other end acts on lock spring cover 3, one end of described pellet shot from a slingshot core spring 5 acts on the step 16 that lock spring overlaps 3 stepped holes 4, and the other end acts on 22 places at the bottom of the hole that lock spring overlaps 3 blind holes 17.

Several described composite pellet devices are housed on lock body 6 and the lock core 8 as shown in Figure 1, the lock core marble cover 9 in these composite pellet devices and the length of lock core marble core 10 are different, when key 12 inserts in the keyhole 15 of lock core 8, because the spring force of described pellet shot from a slingshot core spring 5 is less than the spring force of marble spring 1, under in above-mentioned two spring forces, acting on, the tooth 11 of differing heights just contacts the end 23 of lock core marble cover 9 of pairing different length and boss 18 1 ends 24 of lock core marble core 10 respectively on the key 12, make lock core marble cover 9 and lock spring overlap 3 contacted end faces and lock core marble core 10 and lock spring core 7 contacted end faces, just in time be positioned at interface 25 places of lock body 6 and lock core 8, it is rotatable to twist key 12 lock cores 8 this moment, and the cylinder lock with composite pellet device is opened.

As shown in Figure 3, when key 12 is extracted out from keyhole 15, under the spring force effect of marble spring 1, lock spring cover 3 inserts lock core marble hole 4, and lock body 6 and lock core 8 are locked mutually, enters an end 20 of the lock spring core 7 of lock core marble hole 4 simultaneously, under the spring force effect of pellet shot from a slingshot core spring 5, insert lock core marble and overlap in 9 stepped holes 13, the lock spring cover 3 and the interface of lock core marble cover 9 are sealed by lock spring core 7, realized of the interlocking of lock spring cover 3 with lock core marble cover 9.The shoulder 21 of lock core marble core 10 contacts step 19 in the stepped hole 13 of lock core marble cover 9 at this moment.

Because the present invention has the cylinder lock of composite pellet device, in identical space, has increased locking mechanism than common cylinder lock, thereby has reduced mutual opening rate effectively; Because at locking shape down lock body marble sleeve 3, lock core marble cover 9, lock spring core 7 and lock core marble core 10 all is interlocking state, each does not have radial displacement between the part in addition, thereby make to rely on dislocation takes place between lock spring and the lock core marble variation and situation in the perception lock, use unlocked by universal key, method with cylinder lock of composite pellet device is difficult to realize, thereby has realized being difficult for by the purpose of unlocked by universal key.

Claims

1. cylinder lock with composite pellet device, comprising: lock body (6), lock core 8, lock body shell hole (2), lock core shell hole (14), marble spring (1) is characterized in that; In lock marble hole (2) and lock core marble hole (14), the composite pellet device is housed, this device is the lock spring cover 3 that also can be slided in lock marble hole (2) by the lock marble hole of packing into (2), the lock spring core (7) that the pellet shot from a slingshot core spring (5) in lock spring cover (3) hole (4) of packing into is packed in lock spring cover (3) hole (4) and can be slided in hole (4), lock core marble core (10) formation that also can in hole (13), slide in the lock core marble cover (9) of packing in the lock core marble hole (14) and can in lock core marble hole (14), slide and lock core marble cover (9) hole (13) of packing into, there is the limited step (19) of restriction lock core marble core (a 7) amount of skidding off in the hole (13) of described lock core marble cover (9) towards keyhole (15) one ends, described lock core marble core (7) has a boss (18) that can skid off from limited step (16) in the hole (13) of lock core marble cover (9) towards keyhole (15) one ends, described lock spring core (7) has a blind hole (17), the end that pellet shot from a slingshot core spring (5) is equipped with in the hole (4) of described lock spring cover (3) has a limited step (16) that stops pellet shot from a slingshot core spring (5) to be scurried out, the spring force of described pellet shot from a slingshot core spring (5) is less than the spring force of marble spring (1), one end of described pellet shot from a slingshot core spring (5) acts on lock spring and overlaps on the interior limited steps in 3 holes (4) (16), the other end acts on the bottom in lock spring core (7) blind hole (17), described lock core marble core (10) can slide in lock spring cover (3) hole (4), and described lock spring core (7) can slide in lock core marble cover (9) hole (13).

2. the cylinder lock with composite pellet device according to claim 1 is characterized by: the hole (4) of said lock spring (3) can be a blind hole.

3. the cylinder lock with composite pellet device according to claim 1 is characterized by: the hole (13) of said lock core marble cover (9) can be a through hole not with the level.

4. the cylinder lock with composite pellet device according to claim 1 is characterized by: said lock core marble core (10) can be with boss (18).

5. the cylinder lock with composite pellet device according to claim 1 is characterized by: said lock spring core (7) can be solid atresia or have stepped hole.