CN2173296Y

CN2173296Y - Safety lock core with toothless key

Info

Publication number: CN2173296Y
Application number: CN 93247747
Authority: CN
Inventors: 宋德丰
Original assignee: Individual
Current assignee: Wu Jisheng; Wu Qianqian
Priority date: 1993-12-27
Filing date: 1993-12-27
Publication date: 1994-08-03
Anticipated expiration: 2003-12-27

Abstract

The utility model relates to a high-safety lock core with a toothless key, composed of the casing body of the lock core, a lock core body, cylinders, a thin reed, a copper sheet, and the toothless key. As the interior of a cylinder groove is provided with no compressed spring, the structure is simple; as the cylinders form sheet shapes, the quantity of the cylinders is increased; as the geometric size of convex teeth on the cylinders and the position variation of the convex teeth can form a different key, the repetitiveness of the key is minimal, and the security and the safety of the lock core are improved. The lock core can be used for locks having various uses.

Description

Safety lock core with toothless key

The utility model relates to the lock core of a kind of lock core, particularly a kind of high security.

The lock of the present frame for movement of generally using, of a great variety, but the lock core major part all is the cylinder type lock core that has little compression spring, but improve along with the increase of demand and to the quality requirement of locking, the lock cylinder that present people generally use can not meet the demands, a key often occurs and can drive several locks, its safety is relatively poor, and structure is complicated.

The purpose of this utility model will overcome above-mentioned deficiency exactly, provides a kind of novel structure simple, can improve the high secret lock core of no teeth key of safety greatly.

Above-mentioned purpose is realized by following technical scheme:

This utility model is made up of lock core shell, lock core body, pellet shot from a slingshot, reed, driver blade and key etc.

Lock core shell is the fixture of lock core body, and its diameter of bore is identical with the lock core body external diameter, has on the hole within it and the corresponding rectangle pellet shot from a slingshot of lock core body bullet groove water jacket, and the external diameter and the shape of lock core shell are decided as required.Lock core body is contained in the lock core shell, lock core body is the garden cylindricality, have rectangular keyhole and bullet groove on it, the hole communicates with the middle part of groove, the pellet shot from a slingshot of band double wedge is housed in bullet groove, its length is identical with the lock core body external diameter, near each pellet shot from a slingshot middle part double wedge is arranged, a thin reed is housed in the back of the last pellet shot from a slingshot, its width, length are identical with pellet shot from a slingshot, and thin reed can compress pellet shot from a slingshot to a direction, make it can not be free movable, and a suitable elasticity is arranged, and key can be twitched flexibly.

The no teeth key of opening lock core be with lock core body on the identical shaped rectangle sheet body of keyhole, have the groove of a bending in the middle part of one side plane, the width of groove is more slightly bigger than the width of pellet shot from a slingshot double wedge, and the length of the depth ratio pellet shot from a slingshot double wedge of groove is a little bit smaller slightly, can make key channel and pellet shot from a slingshot double wedge that certain clearance is arranged like this, twitch flexibly so that guarantee key.The top flare of anodontia key channel.The pellet shot from a slingshot double wedge that is in diverse location can be taken in the key channel.

Its operating principle is such, and when lock was in the position of pass, always the end of some pellet shot from a slingshot was in the pellet shot from a slingshot water jacket of lock core shell endoporus, and lock core can not be rotated; When unblanking, when key injects the keyhole of lock core body, key channel top tubaeform mouthful can take in the pellet shot from a slingshot double wedge that is in diverse location in the key channel, and the interaction by key channel and pellet shot from a slingshot double wedge makes pellet shot from a slingshot swing to both sides, make crooked groove can inject in the lock core, when key was inserted into the end, the end of each pellet shot from a slingshot all was in the position that flushes with the lock core body outward flange, at this moment key, lock core body is promptly rotatable, and lock is opened.

When key was extracted out, key channel can drive pellet shot from a slingshot and swing to both sides, and the end of a part of pellet shot from a slingshot is in the pellet shot from a slingshot water jacket with the corresponding lock core shell endoporus of bullet groove, and lock promptly is in the state of pass.

Advantage of the present utility model and good effect:

1. confidentiality of the present utility model is except that outside the Pass having with marble amount, also relevant with the position of the physical dimension of pellet shot from a slingshot double wedge and pellet shot from a slingshot double wedge, because pellet shot from a slingshot adopts the pellet shot from a slingshot of band double wedge, and the physical dimension of double wedge and change in location all can cause the variation of key, therefore the repeatability of key is very little, and safety, the confidentiality of lock improve greatly.

2. simple in structure, removed the compression spring in the general lock cylinder, and sealed pellet shot from a slingshot without rivet, key is also simple, has only the groove of a bending.

Description of drawings:

Fig. 1 is the utility model front view;

Fig. 2 is the utility model A-A sectional view;

Fig. 3 is the utility model right view;

Fig. 4 is the utility model key front view;

Fig. 5 is the B-B sectional drawing of the utility model key.

Below in conjunction with drawings and Examples the utility model is described further:

As Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, lock core is by lock core shell 3, lock core body 1, pellet shot from a slingshot 4, copper sheet 5, spring leaf 10, driver blade 12 compositions such as grade, lock core body 1 is the garden cylindricality, have rectangular keyhole 7 and bullet groove 9 on it, the hole is parallel with groove, the intermediate portion communicates, lock core body 1 is contained in the lock core shell 3, the endoporus of lock core shell 3 have with lock core body 1 on bullet groove 9 corresponding pellet shot from a slingshot water jackets 6, tens of rectangle pellets shot from a slingshot 4 are housed in bullet groove 9, the length of pellet shot from a slingshot 4 is identical with the external diameter of lock core body 1, each pellet shot from a slingshot 4 has double wedge 8 near the different parts at middle part, in the end a thin reed 10 is equipped with in the back of a pellet shot from a slingshot 4, its width, length is identical with pellet shot from a slingshot 4, and thin reed 10 can compress pellet shot from a slingshot 4 to a direction, makes it can not be free movable, and a suitable elasticity is arranged, key 13 can be twitched flexibly.

Key 13 its shapes of opening lock core are the rectangles identical with keyhole 7, have the key channel 14 of a bending in the middle part of one side plane, its width is bigger 0.1 millimeter than the width of pellet shot from a slingshot double wedge 8, and the length of the depth ratio pellet shot from a slingshot double wedge 8 of key channel 14 is little 0.2 millimeter, can make like this between key channel 14 and the pellet shot from a slingshot double wedge 8 certain clearance is arranged, so that guaranteeing key 13 twitches flexibly, the top flare of key channel 14 is so that can take in the pellet shot from a slingshot double wedge 8 that is in diverse location in the key channel 14 when opening.

When lock core was in the position of pass, always some pellet shot from a slingshot end was in the pellet shot from a slingshot water jacket 6 of lock core shell endoporus, and lock core body 1 can not be rotated.

When assembling and setting, to approach pack into the top of bullet groove 9 of reed 10 earlier, the pellet shot from a slingshot 4 of requirement is installed successively again, align the pressure that approaches reed 10 with the method that the pellet shot from a slingshot 4 of different-thickness is changed last a slice pellet shot from a slingshot, make it moderate, again 7 li of the keyholes of key 13 reeve lock core bodies 1, treat thin reed 10 moderate pressures, and after key 13 is twitched flexibly again, the surplus at pellet shot from a slingshot 4 two ends is partly removed, made its outer garden concordant, rivet tightly fixing with copper sheet 5 again with lock core body 1, after this, lock core body 1 is packed in the lock core shell 3, load onto pad 2 and driver blade 12 more successively, the thickness of levelling pad 2, insert pin 11, lock core body 1 can not be slided in lock core shell 3 vertically.

Claims

1, the high secret lock core of a kind of no teeth key, by lock core body 1, lock core shell 2, pellet shot from a slingshot 4, thin reed 10 with do not have teeth key 13 etc. and constitute, it is characterized in that being equipped with in the bullet groove 9 of lock core body 1 a plurality of band double wedges pellet shot from a slingshot 4, at an end of bullet groove 9 a thin reed 10 is housed, riveting copper sheet 5 at the other end of bullet groove 9.

2, the high secret lock core of no teeth key as claimed in claim 1 is characterized in that not having teeth key 13 and has one and each corresponding curved shape groove 14 in pellet shot from a slingshot double wedge 8 positions of lock core at the one side plane.

3, the high secret lock core of no teeth key as claimed in claim 1 or 2 is characterized in that: the groove 14 end flares of no teeth key 13.