CN2233972Y - Theft-proof cylinder lock - Google Patents

Abstract

The utility model relates to a theft-proof cylinder lock with an improved structure, which is composed of a lock core, an upper cylinder, a lower cylinder, a cylinder spring, a lock core fixed pin, a lock beam and a lock body. The bottom in the cylinder hole cavity of the lock body is provided with a theft-proof iron rod, the bottom end of the theft-proof iron rod is fixedly arranged at the bottom of the cylinder hole cavity, and the upper part of the theft-proof iron rod is penetrated in the cylinder spring. The theft-proof iron rod has the characteristic that one theft-proof iron rod is arranged in one cylinder spring, or a plurality of theft-proof iron rods are arranged in a plurality of cylinder springs, and the distance between the centerlines of each cylinder group which is composed of the upper and the lower cylinders is arranged in the unequal distance. The cylinder lock which is opened universally by a toothed universal key can be prevented, the property safety of people can be ensured, and the utility model has the advantages of simple structure, high theft-proof performance and safe efficacy.

Description

Antitheft sylinder

The utility model relates to a kind of lock of building field, particularly relates to a kind of antitheft sylinder that improves structure.

At present, the kind of all kinds of antitheft sylinders of selling on the market is a lot, but its antitheft mode all is on the basis of cylinder lock, reinforce the lock body structure of external form or change cylinder lock and realize antitheft purpose, their common drawback is that these antitheft sylinders do not have antitheft effect to broach shape master key, thereby the phenomenon of case often takes place to make of broach shape unlocked by universal key cylinder lock, and this class is done the case means and is not stayed sharp trace, being difficult for distinguishing theft character is interior robber or outer robber, brings very big harm to the people's lives and property.

Please shown in Figure 1 in conjunction with consulting, existing common spring lock, its structure mainly is made up of critical pieces such as lock core 1, last pellet shot from a slingshot 2, following pellet shot from a slingshot 3, marble spring 4, lock core steady pin 5, lock bridge 7, lock bodies 8, each upper and lower pellet shot from a slingshot 2,3 equates with the distance of adjacent upper and lower pellet shot from a slingshot 2,3 centreline spaces, act on down pellet shot from a slingshot 3 by marble spring 4 direct top bullets, pellet shot from a slingshot 3 parts are entered in the pin-and-hole of lock core 1, lock core 1 can not be rotated in lock body 8 and reach the purpose that this cylinder lock of locking can not be unblanked.When using key to insert in the lock core 1, utilize the predefined profile of tooth of key, make pellet shot from a slingshot 2 compression springs 4, following pellet shot from a slingshot 3 is pressed in the pellet shot from a slingshot vestibule 9 of lock body 8, simultaneously also make pellet shot from a slingshot 2 be positioned at lock core 1 again, the lock core 1 and the endoporus of lock body 8 are separated, promptly can key rotary locking cylinder 1 and unblank.The master key 10 that can prepare the broach shape according to the operating principle and the design feature of above-mentioned cylinder lock, see also shown in Figure 2, this broach shape master key 10 is made the broach shape, be provided with the broach 11 that several and pellet shot from a slingshot group distance adapts, make in the lock core 1 last pellet shot from a slingshot 2 all extrusion contract core 1 and enter in the pellet shot from a slingshot vestibule 9 of lock body 8, this moment, broach 11 paralleled with the guide groove of lock core 1, then turned lock core 1 and unblanked.This shows that the master key 10 of this comb structure makes the various cylinder locks of selling in the market dangerous reliable, particularly also just makes it lose antitheft effect to antitheft sylinder and security door etc.According to social investigation, the case of committing a crime with broach shape master key 10 is a lot, thereby the people's property safety has been brought very big harm.

Because the drawback of above-mentioned traditional product, the design people is based on abundant practical experience and professional knowledge, through constantly studying, design, and after studying sample repeatedly and improving, creates the utility model finally.

Main purpose of the present utility model is, overcome the deficiencies in the prior art, and provide a kind of antitheft sylinder that improves structure, make it pass through improvement to the lock body internal construction, can effectively prevent of the omnipotent unlatching effect of broach shape master key to cylinder lock, and can guarantee the people's property safety, make to have effect simple in structure, that theftproof performance is high, safe and reliable.

The purpose of this utility model is realized by following technical scheme.A kind of antitheft sylinder that improves structure, it is made up of lock core, last pellet shot from a slingshot, following pellet shot from a slingshot, marble spring, lock core steady pin, lock bridge, lock body, it is characterized in that: the bottom in the pellet shot from a slingshot vestibule of lock body is provided with antitheft iron, the bottom of this antitheft iron is fixedly arranged on the bottom in the pellet shot from a slingshot vestibule, and its top is arranged in the marble spring.

The purpose of this utility model can also further realize by following technical measures.Aforesaid antitheft sylinder, wherein said antitheft iron is for to be provided with one in a marble spring, its length is that last pellet shot from a slingshot can not all enter in the pellet shot from a slingshot vestibule of lock body and is as the criterion, and antitheft iron and the length sum of following pellet shot from a slingshot are less than and are not equal to the length of the pellet shot from a slingshot vestibule of lock body.Aforesaid antitheft sylinder, wherein said antitheft iron is for to be provided with several in several marble springs, its length is that last pellet shot from a slingshot can not all enter in the pellet shot from a slingshot vestibule of lock body and is as the criterion, and antitheft iron and the length sum of following pellet shot from a slingshot are less than and are not equal to the length of the pellet shot from a slingshot vestibule of lock body.Aforesaid antitheft sylinder, each its center line of pellet shot from a slingshot group spacing distance each other that wherein said upper and lower pellet shot from a slingshot is formed is the setting of unequal distance.Aforesaid antitheft sylinder, wherein said its distance that does not equidistantly distribute setting of each pellet shot from a slingshot group has nothing in common with each other.Aforesaid antitheft sylinder, wherein said antitheft iron are that a diameter is the iron about φ 1mm.

The utility model compared with prior art has tangible advantage and good effect.By above technical scheme as can be known, the utility model improves the antitheft sylinder of structure by the architecture advances design to the common spring lock, can guarantee effectively that all kinds of cylinder locks are more safe and reliable, make anti-theft product such as security door, theftproof lock really reach the purpose of its anti-theft security.This cylinder lock simple in structure, production technology is grasped easily, raw material expend less, theftproof performance is safe and reliable and of many uses, can be widely used on the built-in lock of all kinds of security doors, national treasury etc.

In sum, the utility model is by the improvement to the lock body internal construction, can effectively prevent of the omnipotent unlatching effect of broach shape master key to cylinder lock, and can guarantee the people's property safety, has effect simple in structure, that theftproof performance is high, safe and reliable, thereby be suitable for practicality more, its improvement structurally really makes its function that significantly enhancement is arranged, and really is the new design of a novelty, practicality.

Concrete structure of the present utility model is provided in detail by following examples and accompanying drawing thereof.

Fig. 1 is the structure cross-sectional schematic of the utility model antitheft sylinder.

Fig. 2 is the structural representation of broach shape master key.

Fig. 3 is an antitheft iron structural representation of the present utility model.

Below in conjunction with accompanying drawing and preferred embodiment, to its concrete structure of antitheft sylinder, feature and effect thereof according to the improvement structure that the utility model proposes, describe in detail as after.

See also Fig. 1, shown in Figure 3, the utility model improves the antitheft sylinder of structure, its structure also mainly is made up of critical pieces such as lock core 1, last pellet shot from a slingshot 2, following pellet shot from a slingshot 3, marble spring 4, lock core steady pin 5, lock bridge 7, lock bodies 8, and its principal character is the common spring lock have been done the improvement of following two aspect structures.

At first, it has additional one or an antitheft iron 6 of working hard in any one marble spring 4 or in several marble springs 4 in cylinder lock, this antitheft iron 6 is located at the bottom in the pellet shot from a slingshot vestibule 9 of lock body 8, the bottom of antitheft iron 6 is fixedly arranged on the bottom in the pellet shot from a slingshot vestibule 9, and its top is arranged in the marble spring 4.Promptly, antitheft iron 6 is for to be provided with one in a marble spring 4, or antitheft iron 6 is for to be provided with several in several marble springs 4, its length is that last pellet shot from a slingshot 2 can not all enter in the pellet shot from a slingshot vestibule 9 of lock body 8 and is as the criterion, and antitheft iron 6 and the length sum of following pellet shot from a slingshot 3 are less than and are not equal to the length of the pellet shot from a slingshot vestibule 9 of lock body 8.This antitheft iron 6 is that a diameter is the iron about φ 1mm, its length all above pellet shot from a slingshot 2 can not all enter in the pellet shot from a slingshot vestibule 9 of lock body 8 and is as the criterion, the length sum of antitheft iron 6 and following pellet shot from a slingshot 3 is less than and is not equal to the length of the pellet shot from a slingshot vestibule 9 of lock body 8, broach shape master key 10 can not be extruded the last pellet shot from a slingshot 2 in the lock core 1 outside lock core 1, make lock core 1 interior last pellet shot from a slingshot 2 play and to use original key just can unblank to use broach shape master key 10 then can not lock the effect of opening with following pellet shot from a slingshot 3.

In addition, each its center line of pellet shot from a slingshot group spacing distance each other that the utility model is formed upper and lower pellet shot from a slingshot 2,3 in the cylinder lock, change the setting of unequal distance into by original equidistant setting, and the distance that also the pellet shot from a slingshot group of each different cylinder lock can equidistantly not distributed setting has nothing in common with each other, and make the distance between each pellet shot from a slingshot group be difficult for grasping, thereby broach shape master key can't be prepared, make its effect that loses master key, and can reach safe effect further antitheft, insurance.

The above, it only is preferred embodiment of the present utility model, be not that the utility model is imposed any restrictions, every foundation technical spirit of the present utility model changes any simple modification, change and the equivalent structure that above embodiment did, and all still belongs in the scope of technical solutions of the utility model.

Claims (8)

1, a kind of antitheft sylinder that improves knot is made up of lock core, last pellet shot from a slingshot, following pellet shot from a slingshot, marble spring, lock core steady pin, lock bridge, lock body, it is characterized in that:

Bottom in the pellet shot from a slingshot vestibule of lock body is provided with antitheft iron, and the bottom of this antitheft iron is fixedly arranged on the bottom in the pellet shot from a slingshot vestibule, and its top is arranged in the marble spring.

2, antitheft sylinder according to claim 1, it is characterized in that described antitheft iron is for to be provided with one in a marble spring, its length is that last pellet shot from a slingshot can not all enter in the pellet shot from a slingshot vestibule of lock body and is as the criterion, and antitheft iron and the length sum of following pellet shot from a slingshot are less than and are not equal to the length of the pellet shot from a slingshot vestibule of lock body.

3, antitheft sylinder according to claim 1, it is characterized in that described antitheft iron is for to be provided with several in several marble springs, its length is that last pellet shot from a slingshot can not all enter in the pellet shot from a slingshot vestibule of lock body and is as the criterion, and antitheft iron and the length sum of following pellet shot from a slingshot are less than and are not equal to the length of the pellet shot from a slingshot vestibule of lock body.

4, according to claim 1,2 or 3 described antitheft sylinders, it is characterized in that its center line of pellet shot from a slingshot group spacing distance each other fully that described upper and lower pellet shot from a slingshot is formed, be the setting of unequal distance.

5, antitheft sylinder according to claim 4 is characterized in that described its distance that does not equidistantly distribute setting of each pellet shot from a slingshot group has nothing in common with each other.

6,, it is characterized in that described antitheft iron is that a diameter is the iron about φ 1mm according to claim 1,2 or 3 described antitheft sylinders.

7, antitheft sylinder according to claim 4 is characterized in that described antitheft iron is that a diameter is the iron about φ 1mm.

8, antitheft sylinder according to claim 5 is characterized in that described antitheft iron is that a diameter is the iron about φ 1mm.

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