CN201031531Y

CN201031531Y - Lock head

Info

Publication number: CN201031531Y
Application number: CNU2007201475319U
Authority: CN
Inventors: 韩留喜
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-04-23
Filing date: 2007-04-23
Publication date: 2008-03-05
Anticipated expiration: 2017-04-23

Abstract

The utility model relates to a mechanical locking head capable of preventing prying. The utility model aims to provide a lock which can be normally unlocked when the key is used to unlock the lock under the locking condition; aiming at the defect that only a main lock core can be rotated and a secondary lock core can not be rotated to unlock the lock when the main lock core unlocks the lock, the utility model can effectively prevent various kinds of abnormal unlocking such as the unlocking with strength, the technical unlocking, etc. The main lock core is nested in the cylindrical secondary lock core and the secondary lock core is nested in a locking head body. The lower marble hole on the locking head body, the secondary marble hole on the secondary lock core and the main marble hole on the main lock core all have the same cross section, are all the same in number and correspond to each other with respect to position one by one. The spring, the lower marble, the secondary marble and the main marble of the marble holes are connected with each other sequentially and the transmission strip of the locking head is connected with the secondary lock core.

Description

Tapered end

Affiliated technical field

The utility model relates to a kind of frame for movement tapered end that anti-picking device is arranged.

Background technology

At present, the tapered end of mechanical billiard structure lock in the ordinary course of things, is that the following pellet shot from a slingshot in the tapered end pellet shot from a slingshot hole inserts in the lock core marble hole, or the last pellet shot from a slingshot in the lock core marble hole inserts in the tapered end pellet shot from a slingshot hole, lock core can not be rotated arbitrarily, and when using the picklock picking lock of the similar key of strap wrenches, pellet shot from a slingshot is destroyed, lock core can freely be rotated in tapered end, thereby lock is opened, locked just ineffectively, cause user's stolen property robbery to walk.

Summary of the invention

For the pellet shot from a slingshot in the tapered end that overcomes the existing mechanical cylinder lock, after being destroyed by picklock, lock ineffective deficiency, the utility model provides a kind of tapered end, the pellet shot from a slingshot that this tapered end can be in tapered end by picklock destruction after, but still can not open lock.

The technical scheme that its technical problem that solves the utility model adopts is: main lock core is nested in the auxiliary lock core of drum, auxiliary lock core is nested in the interior lock core hole of tapered end, main lock core and auxiliary lock core, between auxiliary lock core and the tapered end all is that matched in clearance connects, have several main marble holes on the main lock core, have several auxiliary marble holes on the auxiliary lock core, have several lower marble holes on the tapered end, main marble hole, the cross section of auxiliary marble hole and lower marble hole is all identical, number as many, the position is corresponding one by one, lower marble hole, auxiliary marble hole and main marble hole alignment, built-in spring, following pellet shot from a slingshot, secondary pellet shot from a slingshot and main pellet shot from a slingshot, spring is in lower marble hole, one end of spring connects the bottom of lower marble hole, the other end connects pellet shot from a slingshot down, the other end auxiliary connection pellet shot from a slingshot of following pellet shot from a slingshot, the other end of secondary pellet shot from a slingshot connects main pellet shot from a slingshot, the other end of main pellet shot from a slingshot extend in spoon groove, the length of main pellet shot from a slingshot is more than or equal to the degree of depth of main marble hole, the length of secondary pellet shot from a slingshot is less than or equal to the degree of depth of auxiliary marble hole, the intensity of following pellet shot from a slingshot is more than or equal to the intensity of secondary pellet shot from a slingshot, and the intensity of secondary pellet shot from a slingshot is greater than the intensity of main pellet shot from a slingshot, and tapered end transmission bar is connected with auxiliary lock core.Generally speaking, the following pellet shot from a slingshot in the lower marble hole inserts in the auxiliary marble hole, or in the secondary pellet shot from a slingshot insertion lower marble hole in the auxiliary marble hole, and the main pellet shot from a slingshot in the main marble hole inserts in the auxiliary marble hole, and main lock core and auxiliary lock core can not be rotated; When key inserts, because key bit is apart from corresponding one by one with main marble hole, tooth depth is corresponding with the total length of main pellet shot from a slingshot and secondary pellet shot from a slingshot, thereby the contact surface that makes down pellet shot from a slingshot and secondary pellet shot from a slingshot just in time coincides with the contact surface of auxiliary lock core and tapered end, because the main pellet shot from a slingshot in the main marble hole inserts in the auxiliary marble hole, the commentaries on classics of main lock core and auxiliary lock core can not be relatively rotated again, so, main lock core can only rotate with auxiliary lock core, key, and auxiliary lock core and then rotates and opens lock by the transmission of tapered end transmission bar; During with the picklock picking lock, following pellet shot from a slingshot in the lower marble hole inserts in the auxiliary marble hole, or the secondary pellet shot from a slingshot in the auxiliary marble hole inserts in the lower marble hole, and the main pellet shot from a slingshot in the main marble hole inserts in the auxiliary marble hole, main lock core and auxiliary lock core can not be rotated, if unblank by force, because the intensity of following pellet shot from a slingshot and secondary pellet shot from a slingshot is greater than the intensity of main pellet shot from a slingshot, and the main pellet shot from a slingshot shearing stress of bearing at main lock core and auxiliary lock core contact surface place, the shearing stress of bearing at tapered end and auxiliary lock core contact surface place greater than pellet shot from a slingshot or secondary pellet shot from a slingshot down, therefore, main pellet shot from a slingshot can be destroyed at main lock core and auxiliary lock core contact surface place, at this moment, main lock core can only rotate in auxiliary lock core, and auxiliary lock core can not rotate, again because tapered end transmission bar is connected with auxiliary lock core, so tapered end transmission bar can not rotate unblanks, and reaches the purpose of pick-proof.

The beneficial effects of the utility model are: can be when every performance of cylinder lock is constant, though the pellet shot from a slingshot in the tapered end is destroyed, lock but still can not be opened, reach the pick-proof purpose effectively, and can reduce the volume and weight of key, the pick-proof part has only increased auxiliary lock core and one group of secondary pellet shot from a slingshot of a drum, and is simple in structure.

Description of drawings

Be in conjunction with the accompanying drawings the utility model to be further specified below.

Fig. 1 is the tapered end vertical section constructional drawing of a kind of example of the utility model.

Fig. 2 is the I-I sectional view of Fig. 1.

1. auxiliary lock cores among the figure, 2. main marble hole, 3. main lock core, 4. main pellet shot from a slingshot, 5. secondary pellet shot from a slingshot, 6. auxiliary marble hole 7. descends pellet shot from a slingshot, 8. lower marble hole, 9. tapered end, 10. spring, 11. back-up rings, 12. tapered end transmission bars, 13. spoons of grooves.

The specific embodiment

In Fig. 1, main lock core (3) is nested in the auxiliary lock core (1), auxiliary lock core (1) is nested in the tapered end (9), the lateral surface of main lock core (3), the inner face of tapered end (9), the inner face and the lateral surface of auxiliary lock core (1) are the face of cylinder, main lock core (3) and auxiliary lock core (1), between auxiliary lock core (1) and the tapered end (9) all is that matched in clearance connects, have several main marble holes (2) on the main lock core (3), have several auxiliary marble holes (6) on the auxiliary lock core (1), have several lower marble holes (8) on the tapered end (9), main marble hole (2), auxiliary marble hole (6) is all identical with the cross section of lower marble hole (8), number as many, the position is corresponding one by one, lower marble hole (8), auxiliary marble hole (6) and main marble hole (2) alignment, built-in spring (10), following pellet shot from a slingshot (7), secondary pellet shot from a slingshot (5) and main pellet shot from a slingshot (4), spring (10) is in lower marble hole (8), one end of spring (10) connects the bottom of lower marble hole (8), the other end connects pellet shot from a slingshot (7) down, the other end auxiliary connection pellet shot from a slingshot (5) of following pellet shot from a slingshot (7), the other end of secondary pellet shot from a slingshot (5) connects main pellet shot from a slingshot (4), the other end of main pellet shot from a slingshot (4) extend in spoon groove (13), the length of main pellet shot from a slingshot (4) is more than or equal to the degree of depth of main marble hole (2), the length of secondary pellet shot from a slingshot (5) is less than or equal to the degree of depth of auxiliary marble hole (6), the intensity of following pellet shot from a slingshot (7) is more than or equal to the intensity of secondary pellet shot from a slingshot (5), the intensity of secondary pellet shot from a slingshot (5) is greater than the intensity of main pellet shot from a slingshot (4), tapered end transmission bar (12) is connected with auxiliary lock core (1), when auxiliary lock core (1) rotates, tapered end transmission bar (12) can be followed auxiliary lock core (1) and be rotated, at last back-up ring (11) is snapped in the circlip groove of main lock core (3), auxiliary lock core (1) and main lock core (3) can not be moved axially.Key inserts spoon groove (13) when unblanking, because the tooth pitch of key is corresponding one by one with main marble hole (2), tooth depth is corresponding with the total length of main pellet shot from a slingshot (4) and secondary pellet shot from a slingshot (5), thereby the contact surface that makes down pellet shot from a slingshot (7) and secondary pellet shot from a slingshot (5) just in time coincides with the contact surface of auxiliary lock core (1) and tapered end (9), and the main pellet shot from a slingshot (4) in the main marble hole (2) inserts in the auxiliary marble hole (6), main lock core (3) and auxiliary lock core (1) can not relatively rotate, can only rotate together, key, auxiliary lock core (1) and then rotates and unblanks by tapered end transmission bar (12) transmission; When inserting spoon groove (13) picking lock with picklock, because of there not being corresponding tartar on the picklock, following pellet shot from a slingshot (7) in the lower marble hole (8) inserts in the auxiliary marble hole (6), or the secondary pellet shot from a slingshot (5) in the auxiliary marble hole (6) inserts in the lower marble hole (8), and the main pellet shot from a slingshot (4) in the main marble hole (2) inserts in the auxiliary marble hole (6), therefore must have secondary pellet shot from a slingshot (5) or following pellet shot from a slingshot (7) to hinder auxiliary lock core (1) rotates in tapered end (9), main pellet shot from a slingshot (4) hinders main lock core (3) and rotates in auxiliary lock core (1), if rotate by force, because the intensity of strength ratio master's pellet shot from a slingshot (4) of secondary pellet shot from a slingshot (5) and following pellet shot from a slingshot (7) is big, and following pellet shot from a slingshot (7) and secondary pellet shot from a slingshot (5), the shearing stress that is subjected in the contact surface place of auxiliary lock core (1) and tapered end (9), littler than main pellet shot from a slingshot (4) in the shearing stress that the contact surface place of main lock core (3) and auxiliary lock core (1) is subjected to, so, main pellet shot from a slingshot (4) can be destroyed with the contact surface place of auxiliary lock core (1) at main lock core (3), at this moment, main lock core (3) can rotate in auxiliary lock core (1), and auxiliary lock core (1) can not rotate in tapered end (9), like this, the rotation of main lock core (3) can not drive tapered end transmission bar (12) and rotates and to unblank.Compare with general billiards structure lock, between main lock core (3) and tapered end (9), increased the auxiliary lock core (1) of a drum, when the lock core hole diameter of tapered end (9) is constant, can reduce the diameter of main lock core (3), the volume and weight of key also can reduce like this.

Claims

1. mechanical lock head, by tapered end, lock core, pellet shot from a slingshot, compositions such as spring and tapered end transmission bar, it is characterized in that: main lock core (3) is nested in the auxiliary lock core (1), auxiliary lock core (1) is nested in the tapered end (9), the lateral surface of main lock core (3), the inner face of tapered end (9), the inner face and the lateral surface of auxiliary lock core (1) are the face of cylinder, have several main marble holes (2) on the main lock core (3), have several auxiliary marble holes (6) on the auxiliary lock core (1), have several lower marble holes (8) on the tapered end (9), main marble hole (2), auxiliary marble hole (6) is all identical with the cross section of lower marble hole (8), number as many, the position is corresponding one by one, lower marble hole (8), auxiliary marble hole (6) and main marble hole (2) alignment, built-in spring (10), following pellet shot from a slingshot (7), secondary pellet shot from a slingshot (5) and main pellet shot from a slingshot (4), spring (10) is in lower marble hole (8), one end of spring (10) connects the bottom of lower marble hole (8), the other end connects pellet shot from a slingshot (7) down, the other end auxiliary connection pellet shot from a slingshot (5) of following pellet shot from a slingshot (7), the other end of secondary pellet shot from a slingshot (5) connects main pellet shot from a slingshot (4), the other end of main pellet shot from a slingshot (4) extend in spoon groove (13), the length of main pellet shot from a slingshot (4) is more than or equal to the degree of depth of main marble hole (2), the length of secondary pellet shot from a slingshot (5) is less than or equal to the degree of depth of auxiliary marble hole (6), the intensity of following pellet shot from a slingshot (7) is more than or equal to the intensity of secondary pellet shot from a slingshot (5), the intensity of secondary pellet shot from a slingshot (5) is greater than the intensity of main pellet shot from a slingshot (4), and tapered end transmission bar (12) is connected with auxiliary lock core (1).

2. tapered end according to claim 1 is characterized in that: in the pellet shot from a slingshot hole secondary pellet shot from a slingshot (5) can be installed.

3. tapered end according to claim 1 is characterized in that: the inner face of auxiliary lock core (1) and lateral surface are a pair of concentric circles cylinders.

4. tapered end according to claim 1 is characterized in that: the inner face of auxiliary lock core (1) and lateral surface are a pair of off-centre operation cylinders.