CN201406886Y

CN201406886Y - Gate type anti-theft pin tumbler lock

Info

Publication number: CN201406886Y
Application number: CN200920108092XU
Authority: CN
Inventors: 郑瑞滨
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-05-25
Filing date: 2009-05-25
Publication date: 2010-02-17
Anticipated expiration: 2019-05-25

Abstract

The utility model relates to a gate type anti-theft pin tumbler lock which comprises a lock body and a lock cylinder pivoted in the lock body. A rotational line is formed on the junction of the lock body and the lock cylinder, the lock cylinder is internally provided with a keyhole one end of which is open for the insertion of a key; the lock body and the lock cylinder are also provided with a plurality of password pin tumbler holes and a gate pin tumbler hole which are all intersected with the rotational line and internally and sequentially provided with a return spring, an outer pin tumblerand an inner pin tumbler; the extension end of the inner pin tumbler is extended into the keyhole; and the gate type pin tumbler hole is positioned between the password pin tumbler hole and the open end of the keyhole, and a contact point of the inner pin tumbler and the outer pin tumbler in the gate pin tumbler hole is aligned with the rotational line in a normal state. When the anti-theft pin tumbler lock is technically lock picked, as a picklock has certain thickness, the inner pin tumbler in the gate type pin tumbler hole is pushed so as to lead the inner pin tumbler to be crossed on the rotational line and the lock cylinder not to be rotated.

Description

The bar gate type antitheft sylinder

Technical field

The utility model relates to a kind of cylinder lock and key thereof, particularly a kind of technical cylinder lock of prying open and key thereof of preventing.

Background technology

Common cylinder lock comprises:

1. lock body: inside has cylindrical hole.

2. lock core: generally adopt copper, cylindrical in the majority, be hubbed in the cylindrical hole of lock body, from sectional view, look, be formed with the commentaries on classics line between lock core and the lock body; Be provided with the keyhole of inserting key in the lock core.

3. pellet shot from a slingshot: generally be copper marble, pellet shot from a slingshot and outer pellet shot from a slingshot are cylindrical, different in size in being divided into, and are contained in the cylinder-shaped marble hole of lock body and lock core.

4. spring: be contained in the pellet shot from a slingshot hole of lock body, withstand pellet shot from a slingshot.

And be used for the key of unlocking spring lock, have " sawtooth " or " pit " of differing heights, with the pellet shot from a slingshot of corresponding different length.

Common spring is locked in when not putting into key, and the outer pellet shot from a slingshot in the lock body is pushed by spring, across changeing on the line, makes lock core not rotate; In case put into correct key, each pellet shot from a slingshot is promoted by " sawtooth " of key or " pit ", the pellet shot from a slingshot commentaries on classics line that aligns with the contact point of outer pellet shot from a slingshot in making, and lock core is just free to rotate.

Though the improvement to cylinder lock never stops, its basic principle never changes, and is following the basic principle of cylinder lock, also still can with technical means cylinder lock be opened under the situation of not using key.

In addition, the pellet shot from a slingshot hole of existing cylinder lock all is equidistant arrangements, and the encrypted message of cylinder lock is all put down in writing by the length of pellet shot from a slingshot, is easy to the problem that the message in cipher manner of breathing repeats takes place, and the awkward situation that a key is held several locks successfully occurs.

And the utility model designer wishes to develop a kind of new cylinder lock just, stops the technical situation of prying open cylinder lock as far as possible and takes place, and reduce the possibility that repetition takes place encrypted message.

Summary of the invention

At the deficiencies in the prior art, the purpose of this utility model is: a kind of gate antitheft sylinder is provided, stops the technical situation of prying open cylinder lock as far as possible and take place, and reduce the possibility that repetition takes place encrypted message.

For achieving the above object, the technical solution adopted in the utility model is:

A kind of gate antitheft sylinder is characterized in that: comprise lock body and be hubbed on the interior lock core of lock body, the intersection of lock body and lock core is formed with the commentaries on classics line, is provided with keyhole in the lock core, and described keyhole one end is the open end, can insert for key; Also be provided with several password pellet shot from a slingshot holes and a gate pellet shot from a slingshot hole on lock body and the lock core, all intersect with the commentaries on classics line in described password pellet shot from a slingshot hole and gate pellet shot from a slingshot hole, all be equiped with return spring, outer pellet shot from a slingshot and interior pellet shot from a slingshot successively in password pellet shot from a slingshot hole and the gate pellet shot from a slingshot hole, the overhanging end of described interior pellet shot from a slingshot stretches in the described keyhole; Described gate pellet shot from a slingshot hole is between the open end of described password pellet shot from a slingshot hole and keyhole, and the interior pellet shot from a slingshot in the described gate pellet shot from a slingshot hole aligns with described commentaries on classics line under normal conditions with the contact point of outer pellet shot from a slingshot.

In preferable technical scheme: the distance between the adjacent password pellet shot from a slingshot hole has nothing in common with each other.

The bottom land semicircular in shape of described keyhole, the overhanging end of the outer pellet shot from a slingshot in the gate pellet shot from a slingshot hole is hemispherical.

In preferable technical scheme: the diameter in described gate pellet shot from a slingshot hole is greater than the diameter in password pellet shot from a slingshot hole, and the outer pellet shot from a slingshot in the described gate pellet shot from a slingshot hole and the diameter of interior pellet shot from a slingshot are respectively greater than the outer pellet shot from a slingshot in the password pellet shot from a slingshot hole and the diameter of interior pellet shot from a slingshot.

Compared with prior art, adopt the advantage that the utlity model has of technique scheme to be:

1, when the utility model meets with technical picking lock, though picklocks such as master key can push suitable position with the inside and outside pellet shot from a slingshot in several inner password pellet shot from a slingshot holes, but because picklock has certain thickness, must push the interior pellet shot from a slingshot in the gate pellet shot from a slingshot hole, make it across on the commentaries on classics line, and make that cylinder lock can't technical unlocking.

2, not only the length of pellet shot from a slingshot has been put down in writing the encrypted message of cylinder lock, and the variable in distance between the adjacent password pellet shot from a slingshot hole also can be used as a kind of encrypted message existence, this has just improved the safety of cylinder lock and has increased by several geometric progression, be not easy the problem that the message in cipher manner of breathing repeats takes place, avoid occurring the awkward situation that a key is held several locks successfully.

Description of drawings

Fig. 1 is the structural representation of cutting open of gate antitheft sylinder of the present utility model;

Fig. 2 is the schematic diagram of the utility model during by technical picking lock;

Fig. 3 is the Key structure schematic diagram;

Fig. 4 is the sectional view after the utility model inserts correct key.

The specific embodiment

As shown in Figure 1, it is the structural representation of cutting open of the present utility model, a kind of gate antitheft sylinder, comprise lock body 1 and be hubbed on lock core 2 in the lock body 1, lock body 1 is formed with commentaries on classics line 3 with the intersection of lock core 2, be provided with keyhole 4 in the lock core 2, described keyhole 4 one ends are open ends 5, can insert for key 6; Also be provided with several password pellet shot from a slingshot holes 7 and a gate pellet shot from a slingshot hole 8 on lock body 1 and the lock core 2, all intersect with commentaries on classics line 3 in described password pellet shot from a slingshot hole 7 and gate pellet shot from a slingshot hole 8, be equiped with return spring 9, outer pellet shot from a slingshot 10 and interior pellet shot from a slingshot 11 successively in each pellet shot from a

slingshot hole

7,8, the overhanging end of described interior pellet shot from a slingshot 11 stretches in the described keyhole 4.Wherein: described gate pellet shot from a slingshot hole 8 is between the open end 5 of described password pellet shot from a slingshot hole 7 and keyhole 4, and the interior pellet shot from a slingshot 11 in the described gate pellet shot from a slingshot hole 8 aligns with described commentaries on classics line 3 under normal conditions with the contact point of outer pellet shot from a slingshot 10.At this moment, the overhanging end of the outer pellet shot from a slingshot 11 in the gate pellet shot from a slingshot hole 8 just in time connects airtight with the bottom land of keyhole 4, with complete closed keyhole 4, in case there is foreign matter to stretch in the keyhole 4, must touch the overhanging end of the outer pellet shot from a slingshot 11 in the gate pellet shot from a slingshot hole 8, pellet shot from a slingshot 11 departs from commentaries on classics line 3 with the contact point of outer pellet shot from a slingshot 10 in making.Under the modal situation, the bottom land semicircular in shape of keyhole 4, and the overhanging end of the outer pellet shot from a slingshot 11 in the gate pellet shot from a slingshot hole 8 is hemispherical, just can reach the effect of connecting airtight.

Preferably, as Fig. 1, shown in Figure 3, the diameter in described gate pellet shot from a slingshot hole 8 is greater than the diameter in password pellet shot from a slingshot hole 7, and, the outer pellet shot from a slingshot 11 in the described gate pellet shot from a slingshot hole 8 and the diameter of interior pellet shot from a slingshot 10 are respectively greater than the outer pellet shot from a slingshot 11 in the password pellet shot from a slingshot hole 7 and the diameter of interior pellet shot from a slingshot 10, make outer pellet shot from a slingshot 11 in the gate pellet shot from a slingshot hole 8 can be as far as possible the short transverse and the width of keyhole 7 be sealed simultaneously, play better anti-theft effect.

So be provided with, when the utility model meets with technical picking lock, though picklocks such as master key 12 can push suitable position with the inside and outside pellet shot from a

slingshot

11,10 in several inner password pellet shot from a slingshot holes 7, but because picklock 12 has certain thickness, must push the interior pellet shot from a slingshot 11 in the gate pellet shot from a slingshot hole 8, make it across on commentaries on classics line 3, and make that cylinder lock can't technical unlocking.

And as 3, shown in Figure 4, matched key 6 provided by the utility model, offer several pits 13 on its side, corresponding with the position in described several password pellet shot from a slingshot holes 7, in addition, also offer a through hole 14 on key 6 sides, can pass through for the overhanging end of the interior pellet shot from a slingshot 11 in the described gate pellet shot from a slingshot hole 8.Extracting for the ease of key 6, be provided with slope 15 at through hole 14 towards a side of pit 13, certainly, through hole 14 can also be designed to truncated cone-shaped, is the slope with the truncated cone-shaped side, is beneficial to key 6 equally and extracts.

Again as shown in Figure 4, the utility model inserts after the correct key 6, not only the inside and outside pellet shot from a slingshot in the password pellet shot from a slingshot hole 7 11,10 has been pushed suitable position, and the interior pellet shot from a slingshot 11 in the gate pellet shot from a slingshot hole 8 falls into the through hole 14 of key 6, make the inside and outside pellet shot from a

slingshot

11,10 in the gate pellet shot from a slingshot hole 8 contact point with change line 3 and align, lock core 2 just can be rotated and open.

What need remark additionally in addition, is that as shown in Figure 1, the distance between the adjacent password pellet shot from a slingshot hole 7 has nothing in common with each other.Thus, not only the length of pellet shot from a slingshot has been put down in writing the encrypted message of cylinder lock, and the variable in distance between the adjacent password pellet shot from a slingshot hole 7 also can be used as a kind of encrypted message existence, this has just improved the safety of cylinder lock and has increased by several geometric progression, be not easy the problem that the message in cipher manner of breathing repeats takes place, avoid occurring the awkward situation that a key is held several locks successfully.

More than explanation is just illustrative for the utility model; and nonrestrictive, those of ordinary skills understand, under the situation of the spirit and scope that do not break away from claim and limited; can make many modifications, variation or equivalence, but all will fall within the protection domain of the present utility model.

Claims

1, a kind of gate antitheft sylinder is characterized in that: comprise lock body and be hubbed on the interior lock core of lock body, the intersection of lock body and lock core is formed with the commentaries on classics line, is provided with keyhole in the lock core, and described keyhole one end is the open end, can insert for key; Also be provided with several password pellet shot from a slingshot holes and a gate pellet shot from a slingshot hole on lock body and the lock core, all intersect with the commentaries on classics line in described password pellet shot from a slingshot hole and gate pellet shot from a slingshot hole, all be equiped with return spring, outer pellet shot from a slingshot and interior pellet shot from a slingshot successively in password pellet shot from a slingshot hole and the gate pellet shot from a slingshot hole, the overhanging end of described interior pellet shot from a slingshot stretches in the described keyhole; Described gate pellet shot from a slingshot hole is between the open end of described password pellet shot from a slingshot hole and keyhole, and the interior pellet shot from a slingshot in the described gate pellet shot from a slingshot hole aligns with described commentaries on classics line under normal conditions with the contact point of outer pellet shot from a slingshot.

2, gate antitheft sylinder according to claim 1 is characterized in that: the distance between the adjacent password pellet shot from a slingshot hole has nothing in common with each other.

3, gate antitheft sylinder according to claim 1 is characterized in that: the bottom land semicircular in shape of described keyhole, the overhanging end of the outer pellet shot from a slingshot in the gate pellet shot from a slingshot hole is hemispherical.

4, gate antitheft sylinder according to claim 1, it is characterized in that: the diameter in described gate pellet shot from a slingshot hole is greater than the diameter in password pellet shot from a slingshot hole, and the outer pellet shot from a slingshot in the described gate pellet shot from a slingshot hole and the diameter of interior pellet shot from a slingshot are respectively greater than the outer pellet shot from a slingshot in the password pellet shot from a slingshot hole and the diameter of interior pellet shot from a slingshot.