CN2431356Y

CN2431356Y - Cylinder lock cpable of preventing being opened by master key

Info

Publication number: CN2431356Y
Application number: CN 00230404
Authority: CN
Inventors: 刘元锡
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-07-14
Filing date: 2000-07-14
Publication date: 2001-05-23
Anticipated expiration: 2010-07-14

Abstract

The utility model relates to a cylinder lock capable of preventing a skeleton key from opening. A lock head 10 is provided with a jack 11 in parallel with a cylinder hole and one end of a controlling rod 2 is movably connected with a spring wheel of a timer 1 while the other end is inserted into the jack 11 of the lock head 10 of the cylinder lock. A baffle sheet 4 is fixed to the controlling rod 2 and one end of a compression spring 3 leans against the timer 1 while the other end leans against the baffle sheet 4. One end of a baffle plate is movably connected with a centre shaft 12 of the timer 1 and the other end is fixed to a shifting button 8 which is positioned at a window 13 of a cover plate 9. A shifting pin 7 is fixed on the centre shaft 12 of the timer 1 and a shifting rod 6 is fixed on the baffle plate 5, wherein, the shifting rod 6 is contacted with the shifting pin 7. The utility model has the advantage of strong theft-proof function on the cylinder lock.

Description

The cylinder lock that preventing universal key is opened

The utility model relates to the cylinder lock field

At present, commercially available cylinder lock is easy to be opened by a kind of master key, and its method is to revolving force of pellet shot from a slingshot lockhole, and pellet shot from a slingshot is carried out heuristic compression to the appropriate location, and pellet shot from a slingshot is just opened one by one, thereby anti-theft feature is low.

The purpose of this utility model is exactly at the low deficiency of cylinder lock anti-theft feature, when unblanking with master key, and the characteristics that the time that needs is long, and a theftproof lock is provided, it can stop effectively with master key unblanks, and improves the theftproof performance of lock.

The cylinder lock that preventing universal key is opened comprises cylinder lock and anti-theft device, it is characterized in that: anti-theft device by timer 1, control lever 2, compression spring 3, catch 4, baffle plate 5, dead man 6, pull pin 7, pull out turn round 8 and cover plate 9 form; On tapered end 10, have a jack 11 that parallels with the pellet shot from a slingshot hole, jack is squeezed in the lock stamen of tapered end 10, but must not punch the lock stamen, and jack 11 must not be positioned on the same cross section of tapered end with the pellet shot from a slingshot hole of tapered end 10, the clockwork spring wheel of control lever 2 one ends and timer 1 is movably connected and connects, the other end inserts in the jack 11 of cylinder lock head 10, catch 4 is fixed on the control lever 2, compression spring 3 one ends lean against on the timer 1, the other end leans against on the catch 4, the axis 12 of baffle plate 5 one ends and timer 1 is movably connected and connects, the other end is fixed with to pull out turns round 8, pulls out and turns round 8 window 13 places that are positioned at cover plate 9, on the axis 12 that is fixed on timer 1 of pulling pin, dead man 6 is fixed on the baffle plate 5, and dead man 67 contacts with pulling pin.

Advantage of the present utility model is: the anti-theft feature of cylinder lock is significantly strengthened, can not open with master key.

Accompanying drawing 1 is a structural representation of the present utility model

Accompanying drawing 2 is the utility model cover plate 9 structural representations

Embodiment: timer adopts commercially available general timer, and used unit adopts machine to form, and the described structure of by specification drawing and description assembles.Note the position of baffle plate during assembling, when covering lockhole 14 with baffle plate 5, dead man 6 is just stirred and is pulled pin 7, timer is opened be as the criterion.Cover plate 9 is generally manufactured with the above steel plate of 2mm, is fixed on the door, and must note in the time of fixedly can not be from prying open cover plate or dismantle outdoors.

Operating principle: in the time of on the door lock, control lever 2 is to insert the people in the jack 11 of tapered end, the lock stamen can't be rotated, thereby this moment is no matter be what key all can't open lock with.Open lock, need stir earlier and turn round 8 and make baffle plate 5 cover lockhole, simultaneously, baffle plate 5 rotates by the dead man 6 and the 7 drive timer axis 12 of pulling pin, axis 12 drives the clockwork spring wheel, make control lever 2 in the jack 11 of tapered end, withdraw from the lock stamen, turn round 8 baffle plate 5 pulled out back again by pulling out this moment rapidly, and lockhole is exposed, and lock opened in the time of timer setting with key, if timer fixed on for 5 seconds, be not opened in 5 seconds and be locked in, then control lever 2 inserts in the jack 11 of tapered end under the effect of advancing device and compression spring 3 surely again, the lock stamen can't rotate, and lock just can't be opened.Want to open lock this moment again, key must be extracted from keyhole, baffle plate could be covered lockhole, restarts timer, repeats said process.And unblank with master key, the operating personnel of ripe refining also need just can open more than 10 seconds, and when 5 seconds, under the effect of locator, control lever has inserted jack 11, want control lever is withdrawed from jack this moment, must restart timer, and restart timer, baffle plate must be pulled out back again and cover lockhole, and want baffle plate to cover lockhole, and must master key be withdrawed from from keyhole, otherwise being lid, cover plate do not live lockhole, timer also just can't start, and in a single day master key withdraws from from keyhole, and the whole process of unblanking has been interrupted, thereby reaches anti-purpose with the unlocked by universal key cylinder lock.

Claims

1, the cylinder lock of preventing universal key unlatching, comprise cylinder lock and anti-theft device, it is characterized in that: anti-theft device by timer (1), control lever (2), compression spring (3), catch (4), baffle plate (5), driving lever (6), pull pin (7), pull out and turn round (8) and cover plate (9) is formed; On tapered end (10), have a jack that parallels with the pellet shot from a slingshot hole (11), jack is squeezed in the lock stamen of tapered end (10), but must not punch the lock stamen, and jack (11) must not be positioned on the same cross section of tapered end with the pellet shot from a slingshot hole of tapered end (10), the clockwork spring wheel of control lever (2) one ends and timer (1) is movably connected and connects, the other end inserts in the jack (11) of cylinder lock head (10), catch (4) is fixed on the control lever (2), compression spring (3) one ends lean against on the timer (1), the axis (12) that the other end leans against catch (4) overhead gage (5) one ends and timer (1) is movably connected and connects, the other end is fixed with to pull out turns round (8), pulling out the window (13) of turning round (8) and being positioned at cover plate (9) locates, pull pin (7) be fixed on the axis of timer (1) (12), dead man (6) is fixed on the baffle plate (5), dead man (6) contacts with pull pin (7).