CN2301509Y - Cylinder lock capable of preventing of unlocking with universal unlocking tool - Google Patents

Abstract

The utility model relates to a cylinder lock which can prevent from being unlocked by a universal unlocking tool. The utility model is composed of a lock body (1), a lock core (2), a lock core cylinder, a lock body cylinder, a lock body cylinder hole (3), a lock core cylinder hole (4), and a lock body spring (5), wherein, at least one lock body, both ends of which are provided with convex cross-shaped cylinders (7). The utility model uses a step formed by a bulge at the middle part of the cross-shaped lock body cylinder (7) so as to cause an 'unlocking gun' not to push the lock body cylinder out of the lock core under the action of twisting force. The cooperation of the utility model and a convex cylinder and an H-shaped cylinder (8) can prevent various unlocking by a master key and the ' unlocking gun'. The utility model has the characteristics of simple structure, strong safety, and low cost, and can be used for various occasions using locks.

Description

Can prevent the cylinder lock that the Universal opener lock tool is opened

The utility model relates to a kind of lock, particularly can prevent the cylinder lock of unlocked by universal key.

The invention is the improvement No. 96214793.1, No. 96205940.4, Chinese patent and Chinese patent.96205940.4 and 96214793.1 patents can prevent from the unlatching of monodentate class and multiple tooth class master key to be facts have proved effectively.But the so-called Universal opener lock tool that has newly occurred a kind of being referred to as " Unlocking gun " at present, just at present, " Unlocking gun " is still very big to the difficulty of the unlatching of above-mentioned two patents, but above-mentioned two patents can't prevent the unlatching of " Unlocking gun " up hill and dale.

The purpose of this utility model is: provide a kind of and not only can prevent various unlocked by universal key but also can prevent the cylinder lock that " Unlocking gun " opened.It is in the cylinder lock that has convex pellet shot from a slingshot and I shape pellet shot from a slingshot, and at least one cross lock spring is set.Utilize the protruding formed step at cross lock spring middle part, make when lock core is subjected to twisting force that " Unlocking gun " can't eject lock core with lock spring, prevented the unlatching of " Unlocking gun " up hill and dale.It and convex pellet shot from a slingshot and I shape pellet shot from a slingshot are used, and can reach not only to prevent various unlocked by universal key but also prevent the purpose that " Unlocking gun " opened.

Formation of the present utility model: it comprises lock body (1), lock core (2), lock core marble, lock spring, lock marble hole (3), lock core marble hole (4), lock body spring (5); Cylinder lock can have one or more pellet shot from a slingshot groups; It is characterized in that: having at least one or more lock spring is arranged in the pellet shot from a slingshot group is the cross pellet shot from a slingshot (7) that all there is projection at two ends.

In order further to prevent the unlatching of master key.In the above-mentioned cylinder lock, it is right that one or more pellets shot from a slingshot by convex lock spring (6) and convex lock core marble (9) formation also can be set.

In order further to prevent the unlatching of master key.In the cylinder lock noted earlier, it is I shape pellet shot from a slingshot (8) that one or more lock core marble also can be set.

Compared with the prior art, the utility model is provided with at least one cross lock spring again owing to both be provided with convex pellet shot from a slingshot and I shape pellet shot from a slingshot.Utilize the protruding formed step at cross lock spring middle part, make that " Unlocking gun " can't eject lock core with lock spring under twisting force.So not only can prevent various unlocked by universal key but also can prevent the unlatching of " Unlocking gun ".Have simple in structure, be easy to produce, high safety, the characteristics that cost is low can be widely used in various with the lock occasions.

Below in conjunction with accompanying drawing the utility model specific embodiment is described in further detail.

Fig. 1 is a generalized section of the present utility model;

Fig. 2 is the action principle schematic diagram of cross pellet shot from a slingshot of the present utility model (7);

Embodiment: lock body (1), lock core (2), lock core marble, lock spring, lock marble hole (3), lock marble hole (4), the lock body spring (5) of comprising of the present utility model; Cylinder lock can have one or more pellet shot from a slingshot groups; It is characterized in that: having at least one or more lock spring is arranged in the pellet shot from a slingshot group is the cross pellet shot from a slingshot (7) that all there is projection at two ends.

In order further to prevent the unlatching of master key.In the above-mentioned cylinder lock, it is right that one or more pellets shot from a slingshot by convex lock spring (6) and convex lock core marble (9) formation also can be set.Certainly, such pellet shot from a slingshot is to also being made of cross pellet shot from a slingshot (7).

In order further to prevent the unlatching of master key.In the cylinder lock noted earlier, it is I shape pellet shot from a slingshot (8) that one or more lock core marble also can be set.

Cylinder lock is general all right by several pellets shot from a slingshot of being made up of lock core marble and lock spring, and these pellets shot from a slingshot are to forming one or more pellet shot from a slingshot groups again.Cross pellet shot from a slingshot (7) comes down to the convex pellet shot from a slingshot that all there is projection at a kind of two ends, can be symmetrical, and also can be asymmetric.It mainly is to use as lock spring, and the lock core marble that matches with its can be cross pellet shot from a slingshot (7), cylinder-shaped marble, convex pellet shot from a slingshot or I shape pellet shot from a slingshot (8).

The effect 96205940.4 of convex pellet shot from a slingshot and I shape pellet shot from a slingshot (8) and No. 96214793.1 existing descriptions of patent.The effect of cross pellet shot from a slingshot (7) is described emphatically below.

Lock core is represented in the bottom of accompanying drawing 2, and lock body is represented on top.As can be seen.As long as earlier lock core is applied a torsion, owing to always exist certain clearance, torsion can make the aperture of every pair of pellet shot from a slingshot produce certain dislocation between pellet shot from a slingshot and the pellet shot from a slingshot hole.Desire make cross pellet shot from a slingshot (7) to withdraw from lock core as the application of force this moment, and the step place of cross pellet shot from a slingshot (7) will be withstood by the lock spring aperture, forms self-locking.Make any elder generation apply a torsion, and then the attempt of unblanking all fall through to lock core.The projection of the cross lock spring other end can prevent from earlier cross lock spring to be ejected lock core, and when again lock core being applied a torsion, the lock core marble aperture is to the self-locking of lock spring.No matter that is to say, be earlier lock core to be applied torsion or after-applied torsion, and always some is stuck in the lock core cross lock spring.Have only with the corresponding key that is equipped with just to make lock spring and lock core marble be parked in the junction of lock body and lock core just, turn this moment lock core just can be opened cylinder lock.

Claims (3)

1, can prevent the cylinder lock that the Universal opener lock tool is opened, it comprises lock body (1), lock core (2), lock core marble, lock spring, lock marble hole (3), lock core marble hole (4), lock body spring (5); Cylinder lock can have one or more pellet shot from a slingshot groups; It is characterized in that: having at least one or more lock spring is arranged in the pellet shot from a slingshot group is the cross pellet shot from a slingshot (7) that all there is projection at two ends.

2, the cylinder lock that prevents that the Universal opener lock tool from opening according to claim 1 is characterized in that: also have one or more pellet shot from a slingshot at least to being made of convex lock spring (6) and convex lock core marble (9).

3, the cylinder lock that prevents that the Universal opener lock tool from opening according to claim 1 and 2, it is characterized in that: also having one or more lock core marble at least is I shape pellet shot from a slingshot (8).

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