CN200968095Y - Automatically locking up lock - Google Patents

Abstract

The utility model discloses an anti-theft lock that can automatically block inflexibly, and is characterized in that a ''T'' shaped marble, middle marble and internal marble are arranged in the marble hole of the traditional lock, and the both sides of the marble hole of the lock core are provided with a groove corresponding to the small head part of the ''T'' shaped marble. When the utility model is opened with an improper technical manner, the ''T'' shaped marble can be inserted in the groove and block the lock automatically inflexibly, and the utility model can effectively stop thieves from opening the lock improperly.

Description

A kind of automatic stuck theftproof lock

Affiliated technical field:

The utility model relates to a kind of mechanical lock, especially a kind of automatic stuck theftproof lock

Technical background:

At present, the mechanical lock of selling on the market is a main flow with Yale lock, cross lock and dull and stereotyped spoon still, and Yale's lock is to be popular in the longest old-fashioned lockset of generation time, its anti-technical opening poor performance, size of key is low, and the keyboard transreplication, understands slightly that generally the people of lockset just can open; It is complicated that cross lock seems, and it has only increased size of key, and its anti-technical opening performance is also relatively poor, and unlocking tool popular on the market can both be opened; Dull and stereotyped spoon lock seems novel, and its only a kind of distortion of Yale's lock just increased some difficulty on key-cut, but the anti-technical opening of himself does not increase in fact.Recently the manufacturer production that has goes out to prevent the theftproof lock of technical unlocking better performances, but is difficult to accomplish scale production on its structure, thereby cost of production is higher.

Summary of the invention:

It is a kind of simple for structure that the utility model provides, can automatic stuck mechanical anti-theft lock in the technical unlocking.Its technical scheme is: the basic structure that still comprises existing cylinder lock set, three pellets shot from a slingshot are housed at least one pellet shot from a slingshot hole, and wherein being used for the outer pellet shot from a slingshot of kayser is " T " font pellet shot from a slingshot, and its major part outside, with the spring contact action, the microcephaly is in key in-core and middle pellet shot from a slingshot contact action; On the lock core, in the shell hole both sides that three pellets shot from a slingshot are housed, and respectively have a groove that diameter is littler than pellet shot from a slingshot hole with this pellet shot from a slingshot hole on same cross section, the size of groove matches with the little head part of " T " font pellet shot from a slingshot.

When the utility model uses matched key to open, middle pellet shot from a slingshot is just crossed release line, leave lock core, enter lock body, when improper unlatching, because external force is rotated certain position with lock core, middle pellet shot from a slingshot is blocked in the lock core and can not enters lock body, this moment, lock core can rotate, when the little head part that goes to " T " font pellet shot from a slingshot and groove contraposition, owing to spring action pushes groove with the little head part of " T " font pellet shot from a slingshot, and its major part part is still in lock body, " T " font pellet shot from a slingshot blocks lock core this moment, can't turn round, and whole lock is stuck automatically.

The utility model is owing to be provided with the automatic stuck device that prevents improper unlatching, and the method that the robber promptly uses master key or colloid to compress pellet shot from a slingshot is rotated lock core, but can only rotate certain position, lock core will be stuck automatically, lockset still can not be opened, and whole lockset is stuck, reaches safety effect.Its theftproof performance is that existing cylinder lock set is incomparable.

Description of drawings:

Fig. 1 is the utility model sectional structure chart;

The duty sectional structure chart of Fig. 2 when to be that the utility model is improper open;

Duty sectional structure chart when Fig. 3 opens for matched key;

Fig. 4 is a specific embodiment lock core three-dimensional structure diagram.

(1) lock body, (2) lock core, (3) interior pellet shot from a slingshot, (4) middle pellet shot from a slingshot, (5) " T " font pellet shot from a slingshot, (6) groove, (7) spring, (8) keyhole, (9) key balance tenon, (10) key, (11) pellet shot from a slingshot hole among the figure.

The specific embodiment:

Fig. 1 provides the utility model structure cross-sectional schematic, interior pellet shot from a slingshot (3), middle pellet shot from a slingshot (4) and " T " font pellet shot from a slingshot (5) are housed in a pellet shot from a slingshot hole, " T " font pellet shot from a slingshot (5) is the kayser pellet shot from a slingshot, " T " font pellet shot from a slingshot (5) major part outside, with spring (7) contact action, its microcephaly stretches in the lock core (2), with middle pellet shot from a slingshot (3) contact action, on the lock core (2), in the both sides, pellet shot from a slingshot hole that three pellets shot from a slingshot are housed, and on same cross section, respectively have the groove (6) that a diameter matches with the little head part of " T " font pellet shot from a slingshot (5) with this pellet shot from a slingshot hole.Referring to Fig. 2, when improper unlatching, lock core (2) rotates certain position, and when " T " font pellet shot from a slingshot (5) and a groove (6) contraposition, spring (7) pushes the microcephaly of " T " font pellet shot from a slingshot (5) in the groove (6), and lock promptly is stuck.Referring to Fig. 3, when using matched key (10) to open, middle pellet shot from a slingshot (4) is just pushed lock body (1), " T " font pellet shot from a slingshot (5) is blocked, because middle pellet shot from a slingshot (4) is bigger than groove (6), can not fall into groove (6), lock is normally opened, referring to Fig. 4, the both sides in three pellet shot from a slingshot holes in five the pellet shot from a slingshot holes (11) that have on lock core (2) have groove (6).

Claims (2)

1, a kind of automatic stuck theftproof lock, it has the basic structure of existing ball lock head, it is characterized in that at least one pellet shot from a slingshot hole, being equipped with " T " font pellet shot from a slingshot, middle pellet shot from a slingshot and three pellets shot from a slingshot of interior pellet shot from a slingshot, wherein " T " font pellet shot from a slingshot is the kayser pellet shot from a slingshot, its major part outside, with the spring contact action, microcephaly and middle pellet shot from a slingshot contact action respectively have a groove littler than pellet shot from a slingshot in the both sides, pellet shot from a slingshot hole that three pellets shot from a slingshot are housed and with this pellet shot from a slingshot hole on the lock core on same cross section.

2, automatic stuck theftproof lock according to claim 1 is characterized in that the size of groove matches with the little head part of " T " font.