CN2316405Y

CN2316405Y - Cylinder lock with rectangular keyhole for preventing from being opened by foreign body

Info

Publication number: CN2316405Y
Application number: CN 97239132
Authority: CN
Inventors: 宋先贵
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-10-31
Filing date: 1997-10-31
Publication date: 1999-04-28
Anticipated expiration: 2007-10-31

Abstract

The utility model relates to a cylinder lock which is provided with a rectangle-shaped keyhole and prevents from being unlocked by foreign matters. The utility model comprises a lock body, a lock core, a cylinder, a spring, a seal cover, an axial direction spacing clamp of a lock core, a lonck tongue poking rod, and a positioning steel ball, wherein, the cylinder is vertical to the circumference surface of the keyhole and is arranged along longitudinal direction; one corresponding circumference of the keyhole is provided with an anti-unlocking cylinder, namely, the distance between the front end of a prepositive cylinder in a cylinder hole and axle center of the lock core is between 0.2 and 0. The utility model can effectively eliminate foreign matters to be inserted for unlocking, enhances the anti-theft performance of the lock, and has the advantages of simple structure, easy manufacture, low processing cost, and wide market.

Description

The cylinder lock of the rectangle keyhole that anti-foreign matter is opened

The utility model relates to a kind of lockset that closes door, is a kind of cylinder lock of rectangle keyhole of anti-foreign matter unlatching.

Now use cylinder lock, normally pellet shot from a slingshot columns and the every row pellet shot from a slingshot figure place of locking with increase improved the anti-openability of lockset, yet done like this, and its anti-openability can not obtain more improvement, has but increased the manufacture difficulty of lockset, has strengthened the cost of production of lockset.Tracing sth. to its source, mainly is when lock is in the enable possition, the front end of the preposition pellet shot from a slingshot in the pellet shot from a slingshot hole, excessive apart from lock core axle center distance, generally, make other people insert lockhole like this, go to stir the unlatching that pellet shot from a slingshot is realized lock with other opener (as so-called master key) all greater than 0.5mm.If to used cylinder lock, dwindle the distance of preposition pellet shot from a slingshot front end to the lock core axle center, can weaken the intensity of phase bitting first, second can cause key to insert, extract out lockhole and become difficult.

The purpose of this utility model is, changes the shape of keyhole, and in set pellet shot from a slingshot row, increase the anti-unlatching pellet shot from a slingshot that anti-foreign matter inserts keyhole, when this lock is in the enable possition, the anti-front end of opening the preposition pellet shot from a slingshot in the pellet shot from a slingshot hole, and the distance in lock core axle center should remain between 0.2～0.Like this, when any opener insertion lockhole, this lock just is in locking states, thereby has guaranteed the anti-foreign matter openability of this lockset.

The purpose of this utility model is to realize like this, this lock is by lock body, suit lock core in vivo, pellet shot from a slingshot, spring, the aperture capping of pellet shot from a slingshot hole in lock body and the lock core marble hole, spacing card in the lock core rear annular draw-in groove, dead bolt driving lever in the radial slot of lock core rear end, and locking ball in lock body and the lock core rear portion locating hole and spring composition.The keyhole at lock core middle part is a rectangular opening, and on each side face, longitudinally row has at least two pellet shot from a slingshot holes of every row, in establish pellet shot from a slingshot, spring.Pellet shot from a slingshot hole on the leptoprosopy is arranged in a linear, and the pellet shot from a slingshot hole on wide can be arranged in a straight line, also can be non-rectilinear and arrange.Intensity and the key of considering institute's bitting can insert or transfer to keyhole smoothly, on wide of keyhole correspondence, are provided with the anti-pellet shot from a slingshot hole of opening, in establish pellet shot from a slingshot and spring, and the anti-unlatching pellet shot from a slingshot on corresponding wide can be to be oppositely arranged with end face, or the heterodoxy face is provided with.When this lock is in opening, the anti-front end of opening the preposition pellet shot from a slingshot in the pellet shot from a slingshot hole, and the distance of lock core axial line should remain between 0.2～0.

For preventing that effectively other opener from inserting keyhole, remove to stir pellet shot from a slingshot, its anti-pellet shot from a slingshot of opening is preferably disposed on place, nearly keyhole aperture, improves the anti-quality of fit of opening pellet shot from a slingshot and hole, place simultaneously.Be the jacking position of control pellet shot from a slingshot in the hole, and anti-openability, the pellet shot from a slingshot hole reaches the anti-bottom, pellet shot from a slingshot hole of opening, and the shoulder hole of one section minor diameter is arranged, and the preposition pellet shot from a slingshot in it, is processed with the step that matches.

Cylinder lock of the present utility model, owing to adopted the rectangle keyhole, and be provided with the anti-pellet shot from a slingshot of opening, when any opener insertion keyhole, this lock just is in locking states, thereby has guaranteed the theftproof of this lock effectively, and this lock construction is simple, makes easily, has reduced processing cost.

Cylinder lock of the present utility model is provided by following examples and accompanying drawing thereof.

Fig. 1 is the front view of this cylinder lock.

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

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

Fig. 4 is the sectional view of Fig. 2 along C-C.

Describe the details of the cylinder lock of the rectangle keyhole of opening according to the anti-foreign matter that the utility model proposes in detail below in conjunction with Fig. 1～4.

The cylinder lock of the rectangle keyhole that this anti-foreign matter is opened comprises lock body [1], is sleeved on the lock core [2] in the lock body mider hole.On the rear portion cylindrical of lock core, have annular slot, the restriction axially movable spacing card of lock core [6] is housed in it, there is radial slot the lock core rear end, Built-in lock tongue driving lever [7].At lock body and lock core rear portion, be processed with locating hole and location semicircle groove, in establish steel ball [8], the spring [4] that matches with hole, groove, the aperture is provided with capping [5].Pellet shot from a slingshot hole on lock body and the lock core is perpendicular to rectangle keyhole side face and longitudinally arranges, in establish pellet shot from a slingshot [3], spring [4], capping [5] is established in its aperture.The anti-pellet shot from a slingshot of opening is arranged on wide of the rectangle keyhole, and is positioned at place, nearly keyhole aperture, and when this lock was in the enable possition, the anti-front end of opening the preposition pellet shot from a slingshot in the pellet shot from a slingshot hole equalled zero with the distance in lock core axle center.For preventing that foreign matter from inserting keyhole and opening this lock, the anti-quality of fit of opening pellet shot from a slingshot and hole, place of then corresponding raising simultaneously, reaches anti-bottom of opening the pellet shot from a slingshot hole in the pellet shot from a slingshot hole, the shoulder hole of one section minor diameter of processing, and the preposition pellet shot from a slingshot in it is processed with the step that matches.For making key can correctly insert keyhole, on the front end face of lock body, be provided with the semicircle orifice [9] that contraposition is used.

Claims

1. the cylinder lock of the rectangle keyhole opened of an anti-foreign matter, comprise lock body, be sleeved on the lock core in the lock body, pellet shot from a slingshot in lock body and the lock core marble hole, the capping in spring and aperture, pellet shot from a slingshot hole, spacing card in the lock core rear annular draw-in groove, be contained in the dead bolt driving lever in the radial slot of lock core rear end, and be contained in locking ball and spring in lock body and the lock core rear portion locating hole, it is characterized in that the keyhole on the lock core is a rectangular opening, and on each side face longitudinally row at least two pellet shot from a slingshot holes of every row are arranged, in establish pellet shot from a slingshot, spring, and on a corresponding aperture face, be provided with the anti-pellet shot from a slingshot hole of opening, in establish pellet shot from a slingshot and spring, and the anti-unlatching pellet shot from a slingshot on the corresponding surface, can be to set relatively with end face, or the setting of heterodoxy face, when this lock is in the enable possition, the anti-front end of opening the preposition pellet shot from a slingshot in the pellet shot from a slingshot hole, and the distance in lock core axle center is between 0.2～0.

2. cylinder lock according to claim 1 is characterized in that anti-fit clearance of opening pellet shot from a slingshot and hole, place, should be less than the fit clearance in other pellet shot from a slingshot and hole, place.

3. cylinder lock according to claim 1 and 2, pellet shot from a slingshot hole reach anti-bottom of opening the pellet shot from a slingshot hole, and the shoulder hole of one section minor diameter is arranged, and the preposition pellet shot from a slingshot in it is processed with the step that matches, to limit the position that falls of preposition pellet shot from a slingshot.