CN2584730Y

CN2584730Y - Lock barrel

Info

Publication number: CN2584730Y
Application number: CN 02248695
Authority: CN
Inventors: 陈志亮
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-10-17
Filing date: 2002-10-17
Publication date: 2003-11-05
Anticipated expiration: 2012-10-17

Abstract

The utility model relates to a lock core which is composed of an outer ring, an inner liner ferrule, an inner liner, hoodles, springs and keys, wherein, the inner liner ferrule is arranged in the outer ring, the inner liner is fixedly sheathed on the inner liner ferrule, key grooves are arranged on the inner circle of the outer ring, and interstice which is corresponding to the key grooves is arranged on the inner liner ferrule; sliding grooves are arranged on the outer surface of the inner liner, notches which are corresponding to the key grooves and the interstice are arranged on partition boards between the sliding grooves and the interstice, staircases are arranged in the sliding grooves on the inner liner, and the hoodles and the springs are arranged on the sliding grooves; convex steps which are clamped and buckled with the staircases are arranged on one end of each of the hoodles, the end of each of the hoodles comes in contact with the springs, grooves are arranged on the hoodles, the grooves and the interstice of the inner liner ferrule can contain the keys, and the other end of each of the hoodles is slightly extended into key holes of the inner liner. The utility model with the structure is hard for a common unlocking tool to open, and the utility model brings higher safety and reliability to a user.

Description

A kind of lock core

Technical field

The utility model relates to a kind of mechanical lock master.

Background technology

Present widely used lockset, usually all form by lock body, lock core, link gear, locking device, can its operating principle be rotate with respect to lock body by the control lock core, thereby the unlatching of control lock and locking: when lock core can rotate with respect to lock body, when rotating, lock core drives link gear, link gear is pushed locking device aside, and lock just is unlocked; When lock core can not rotate with respect to lock body, lock core can't be pushed locking device aside by driving link gear, and lock just is in the lock state.

The mode that can present modal control lock core rotate is to utilize the slip of hoodle to realize.Shown in Fig. 1 (a), in the radial direction chute 3 of lock body 1 and lock core 7, be placed with two hoodles 5 and 6, spring 4 is equipped with in bottom at the chute 3 of lock body 1, when the keyhole in the lock core 79 does not have key to insert, hoodle 5 and 6 can rely on the direction of keyhole 9 under the effect of spring 4, at this moment hoodle 5 does not all enter in the chute 3 of lock body 1, but some enters in the chute 3 of lock core 7, because hoodle 5 is stuck between lock body 1 and the lock core 7, lock core 7 can't rotate with respect to lock body 1, and at this moment lock is in the lock state.When opening lock, key 10 is inserted in the keyhole 9, hoodle 6 and 5 is by the direction of top to spring 4, if the key bit of key 10 is suitable, it is concordant with the cylindrical 8 of lock core that hoodle 6 and 5 contact surface 2 can just move to, and promptly moves on the face of cylinder that lock body 1 and lock core 7 join, shown in Fig. 1 (b), at this moment lock core 7 just can rotate relative to lock body 1, and shown in Fig. 1 (c), lock just has been unlocked.The shortcoming of this lock is, under the situation that does not have suitable key, also be easier to be unlocked: for example, because hoodle 5,6 can slide in chute 3, so chute 3 and hoodle 5, must have certain clearance between 6, add certain rotatory force in advance at first for lock core 7, this rotatory force should be consistent with normal opening direction, at this moment with thin wire with the direction of hoodle 6 top to spring 4, when hoodle 5 is headed into chute 3 in the lock body 1 fully by hoodle 6 after, take away thin wire again, at this moment hoodle 5 can be blocked slightly and can not slip in the chute 3 of lock core 7 by the notch of lock core 7 internal chutes 3, so just can rotational lock core, lock just is unlocked.For another example, utilize the principle that can flick behind hoodle 5, the 6 mutual high velocity impacts, hoodle 6 is constantly applied impact force at a high speed, hoodle 5,6 can constantly collide mutually and flick, when hoodle 5,6 each other distance and during position suitable, hoodle 5 just can not block lock body 1 and lock core 7, and at this moment lock core 7 just can rotate, and lock also can be unlocked.As seen the safety of this lock pin is not high.

Summary of the invention

The purpose of this invention is to provide and a kind ofly can make general unlocking tool be difficult to open, have safety, the higher lock core of reliability.

For achieving the above object, of the present utility model a kind of by the outer ring, the inner bag lasso, inner bag, hoodle, the lock core that spring and key are formed, the inner bag lasso is placed in the outer ring, inner bag is enclosed within on the inner bag lasso regularly, circle is provided with keyway in the outer ring, on the inner bag lasso, be provided with and the corresponding slit of keyway, the surface is provided with chute outside the tank, on the dividing plate between the chute, be provided with and keyway, the corresponding breach in slit is placed with key between keyway and slit, be provided with ladder in the chute on inner bag, hoodle, spring is established and is placed on this chute, and hoodle and contacted this end of spring are provided with and the ladder raised step of buckle mutually, are provided with groove on hoodle, the slit of this groove and inner bag lasso can hold key, and the other end of hoodle stretches in the keyhole of inner bag a little.

Lock core of the present utility model compared with prior art has following advantage:

1, comparatively complexity and gap are narrower for the shape of keyhole 24, have increased to be utilized thin wire and to stir the difficulty that hoodle is opened lockset;

2, a raised step 20 is arranged on the hoodle 14, this step 20 can be blocked by the protrusion ladder 21 of chute 23 and can't excessively stretch in the keyhole 24, its effect is, after the part that hoodle 14 stretches into keyhole 24 is cut off, can not skid off to keyhole again, avoid hoodle 14 after repeatedly cutting off, can't withstand key 17, and will lock unlatching;

3, each chute has only 1 hoodle 14, can prevent to utilize the principle that can flick behind the mutual high velocity impact of hoodle that lock is opened.

Description of drawings

Fig. 1 is the structural representation of the present lock core of using always;

Fig. 2 is the lock-out state structural representation of lock core of the present utility model;

Fig. 3 is the opening structural representation of lock core of the present utility model;

Fig. 4 is the vertical view of lock core structure of the present utility model;

Fig. 5 is a kind of sectional view of hoodle of the present utility model;

Fig. 6 is the another kind of sectional view of hoodle of the present utility model;

Fig. 7 is another sectional view of hoodle of the present utility model;

The specific embodiment

Of the present utility model a kind of lock core shown in Fig. 2-4, it is by outer ring 11, inner bag lasso 13, key 17, inner bag 12, hoodle 14, spring 22 is formed, inner bag lasso 13 is placed in the outer ring 11, inner bag 12 is enclosed within on the inner bag lasso 13 regularly, circle is provided with keyway 16 in the outer ring 11, on inner bag lasso 13, be provided with and keyway 16 corresponding slits 18, on inner bag 12 external surfaces, be provided with 16 chutes 23, on the dividing plate between chute 23 and the chute 23, be provided with and keyway 16, slit 18 corresponding breach 19, between keyway 16 and slit 18, be placed with key 17 in the space, be provided with ladder 21 in the chute 23 on inner bag 12,16 hoodles 14,16 springs 22 are established respectively and are placed on these 16 chutes 23, hoodle 14 and spring 22 contacted these ends are provided with and ladder 21 raised step 20 of buckle mutually, be provided with groove 15 on hoodle 14, the slit 18 of this groove 15 and inner bag lasso 13 can hold key 17, and the other end of hoodle 14 stretches in the keyhole 24 of inner bag 12 a little.During use, when not inserting key in the keyhole 24 of inner bag 12,16 hoodles 14 all slide in the keyhole 24 under the effect of spring 22 as far as possible, paste mutually with the raised step 21 on the chute 23 until the protrusion step 20 on the hoodle 14, at this moment two pins 17 are positioned at the space that keyway 16 and slit 18 form, pin 17 blocks outer ring 11 and inner bag lasso 13 and makes both relatively rotate, because inner bag lasso 13 and inner bag 12 are fixing all-in-one-pieces, thereby inner bag also can't rotate, and lockset is in the lock state.

When key 27 inserts in the keyhole 24, key 27 can all push up 16 hoodles 14 to the direction of the spring 22 a bit of distance of sliding, shown in Fig. 2 (b), when the spoon tooth of key when suitable, there are 8 hoodles 14 can move to groove 15 and just aim at one of them slit 18, other 8 hoodles 14 can move to groove 15 and just aim at another one slit 18, because 14 side dividing plates between the chute 23 all have breach 19, at this moment two keys 17 can slip into respectively in the groove 15 of two slits 18 and 16 hoodles 14 and the space that 14 breach 19 form, key 17 can not hinder inner bag lasso 13 again and rotate in outer ring 11, inner bag 12 also just can rotate with respect to outer ring 11 together with inner bag lasso 13, shown in Fig. 2 (c), inner bag 12 drives link gear when rotating, and link gear is removed locking device, and lockset will be unlocked.

In specific implementation process, shown in Fig. 5-7; The cross section of hoodle 14 can be circular, also can be ellipse, also can be rectangle, as long as hoodle 14 can successfully slide in the space that inner bag lasso 13 and chute 23 surround under the effect of spring 22.

In sum, the present invention can more obviously improve existing lockset in the shortcoming that does not have also to be unlocked easily under the situation of suitable key, and it provides a kind of safer reliable lock core.

Claims

1, a kind of lock core, it is by outer ring (11), inner bag lasso (13), key (17), inner bag (12), hoodle (14), spring (22) is formed, it is characterized in that: inner bag lasso (13) is placed in the outer ring (11), inner bag 12 is enclosed within on the inner bag lasso (13) regularly, circle is provided with keyway (16) in the outer ring (11), on inner bag lasso (13), be provided with and the corresponding slit of keyway (16) (18), on inner bag (12) external surface, be provided with chute (23), on the dividing plate between the chute (23), be provided with and keyway (16), the corresponding breach in slit (18) (19) is placed with key (17) between keyway (16) and slit (18), be provided with ladder (21) in the chute (23) on inner bag (12), hoodle (14), spring (22) is established and is placed on this chute (23), hoodle (14) and contacted this end of spring (22) are provided with and ladder (21) raised step of buckle (20) mutually, on hoodle (14), be provided with groove (15), the slit (18) of this groove (15) and inner bag lasso (13) can hold key (17), and the other end of hoodle (14) stretches in the keyhole (24) of inner bag (12) a little.

2, lock core according to claim 1 is characterized in that: the cross section of hoodle (14) is garden shape.

3, lock core according to claim 1 is characterized in that: the cross section of hoodle (14) is ellipse garden shape.

4, lock core according to claim 1 is characterized in that: the cross section of hoodle (14) is square.