CN2285805Y

CN2285805Y - Mechanical and permutation combined theftproof lock

Info

Publication number: CN2285805Y
Application number: CN 97200238
Authority: CN
Inventors: 刘国桢; 王忠诚
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-01-06
Filing date: 1997-01-06
Publication date: 1998-07-08
Anticipated expiration: 2007-01-06

Abstract

The utility model belongs to a mechanical cipher combined theft-proof lock which is mainly composed of a shell body, a handle, a lock core, a ratchet pawl and a lock bolt, wherein, an indexing disc is arranged on the handle, a driving threaded rod of the handle is penetrated through a cabinet door and is connected with the lock core arranged in the shell body. The lock core comprises a ratchet wheel, a toothed arc plate, gears A, B and shifting rings I, II. The front side of the shell body is closed and is connected with a plate of the cabinet door, the rear lateral face of the shell body is provided with a rear cover plate, and an inserting hole of a cipher changing rod is arranged on the rear cover plate. The utility model has the advantages that the utility model does not need a key, and the utility model is operated only by cipher opening program. When the ciphers are changed, any sections of the lock do not need disassembling, and the ciphers can be changed optionally by special tools. The protective ability of the utility model is strong.

Description

Mechanical cipher combination theftproof lock

The utility model belongs to a kind of lockset, but particularly in a kind of machinery combination theftproof lock of encryption.

At present, domestic market normally simple and easy three mechanical code locks of theftproof lock (being commonly called as old three) that cabinet is equipped with of insuring, the structure of this lock is very simple, existing has tangible feel when unblanking, be easy to brokenly sign indicating number, anti-damage ability is very poor, and size of key does not reach problems such as requirement.According to public security department's circular, in the stolen case of safety cabinet, largely go out at this old three to lock, brought factor leading to social instability to society.Public security bureau, Bureau of Technical Supervision unite in the law enforcement selective examination the safety cabinet of certain city's sale according to reports, and the safety cabinet of finding that does not possess anti-theft feature all is this old three mortice locks that adopt.

The purpose of this utility model is the problem that exists in the existing password lock, proposes a kind of mechanical cipher combination theftproof lock through manufacturing experimently repeatedly, and it not only has, and protective capacities is strong, and safety factor is big, and it is fast to become code operations, the characteristics that size of key is many.

The technical scheme of mechanical cipher combination theftproof lock of the present utility model is: it mainly is made of housing, handle, lock core, ratchet and locking bolt.It is characterized in that on the handle wherein index dial being housed, the lock core in the drive screw of handle passes the cabinet door and is contained in housing is connected; Lock core wherein comprises ratchet, sector plate, gear A, B and pulls out on ring I, II, the ratchet and offer the groove that holds ratchet buckle end, and in the heart hole gib head taper stock key is housed therein; The other end of ratchet wherein is connected with locking bolt by little axle, with stretching of control locking bolt; Housing front side is wherein sealed and is connected with the cabinet door-plate, and disk also is housed between cabinet door-plate and index dial, is carved with operation witness marker and coding maker thereon, and the trailing flank of housing is provided with back shroud, offers the patchhole that becomes the sign indicating number bar on back shroud.Between housing and cabinet door-plate, also be provided with the anti-drilling steel plate of high strength.Safeguard also is housed on the housing inside wall, is provided with a gib head, can insert in the notch that is opened in the locking bolt side at itself and the locking bolt end that joins.With ratchet that the drive screw of handle is connected on offer 4 connection keyways.

This mechanical code anti-theft lock is a kind of structure uniqueness, related rotating piece type automatic puzzle theft-proof lock that need not be key operated.This lockset is mainly used on the safety cabinet.Lockset is installed on the door leaf inside panel of safety cabinet, can be subjected to door leaf protection lock body installation surface to be provided with the anti-drilling steel plate of high strength, with the lock core key position in its protection lockset housing.Be provided with tamper-proof protective device in the lock body, when external force was washed the lock body bonnet open, lock bolt just entered lock-out state under the effect of protective device safeguard.Lockset is provided with the special tool of changing password, and the change coded program is easy to be reliable, memory easily, and can any assembly coding.

The major advantage of this lockset has:

1,, only operate, thereby safety factor is big with opening password program without key;

Any part that does not need to dismantle lockset when 2, becoming sign indicating number utilizes special tool to make the interior movement gear that rotates of lock be in released state, and the lock owner just can arbitrarily become sign indicating number;

3, protective capacities is strong;

(a) unlatching of outside destroy: have various tool of stipulating and the ability that adopts destructive unlatching in the various artificial use GB10409-89 B standards of opposing.

(b) professional technique is opened: have the ability that opposing expert and professional and technical personnel adopt special professional technique unnormal unlocking.

(c) instrument differentiate to be opened: have the opposing numerical control special purpose computer equipment recognitions such as machine, survey meter of unblanking, the ability of unnormal unlocking.

Technical indicator:

1, size of key: be provided with three group coding lock cores in the lock, dish calibration lattice number is 100, and theoretical size of key is 10 ⁶Kind.Connect drill flute because the ratchet that is connected with the drive screw of index dial is provided with 4, groove position of every change can increase number of password 10 ⁶Kind, so but the expanded keys amount is 4 X10 ⁶Kind.

2, open precision: the rotation error of the sign reference line on index dial and the fixed signal disk is not more than 0.75 calibration lattice.

3, mechanical precision: the accuracy of mesh is greater than 2/3 of the sector plate number of teeth under locking state for lock core gear and sector plate, and its locking function is reliable.

Transmission principle and unlatching lock operation:

This lockset belongs to related rotation.Be provided with three group codings in the lock, transmission lock core (compound related rotor), it has pair word index dial to drive, and fastens mechanism through the spring that falls and makes the lock bolt straight reciprocating motion, realizes opening lock function.

Under driving to word index dial handle, at first drive first group of lock core and rotate, drive second group of lock core then and rotate, second group of lock core drives the 3rd group of lock core again and rotates.Fall to fastening the notch coordination when overlapping when what turn to three groups of lock cores, password produces effect.

This lockset has coding, opens two kinds of functions, and is carved with different from the word witness marker on the fixed signal disk.Straight line is masked as coding maker, and arrow mark is for opening sign.According to different the turning to and the number of turns of word index dial, make three groups of lock cores enter separately password position respectively, thereby realize coding and the purpose of opening lockset.

For further specifying the structure of this lockset, reach embodiment with reference to the accompanying drawings and be described, its accompanying drawing has:

Fig. 1 is the embodiment elevation of this pin tool;

Fig. 2 is the embodiment rear elevation of this lockset;

Fig. 3 is an internal structural map of throwing off back shroud;

Fig. 4 is the embodiment sectional view of this lockset;

Fig. 5,6 is respectively sector plate and gear graph in the lock core of this lockset.

In Fig. 1-6: 1 housing, 2 lock cores, 3 gib head taper stock keies, 4 ratchets, 5 springs, 6 ratchets, 7 little axles, 8 locking bolts, 9 circlips, 10 ring II, 11 packing rings, 12 ring I, 13 handles, 14 index dials, 15 disks, 16 steel balls, 17 springs, 18 back shrouds, 19 screws, 20 elastic washers, 21 safeguards, 22 nuts, 23 screws, 24 springs, 25 protected aprons, 26 operation witness markers, 27 coding makers, 28 coding bar jacks, 29 cabinet door-plates, 30 drive screws, 31 degree of tightness pieces, 32 locks, 33 rivets, 34 sector plates, 35 gear A, 36 gear B, 37 notches, 38 recesses, 39 gib heads, 40 keyways.

Embodiment:

Mechanical cipher combination theftproof lock as shown in Fig. 1-6, it has housing 1, lock core 2, ratchet 4, ratchet 6, lock fastens 8, ring I12, ring II10, handle 13, index dial 14, disk 15, safeguard 21, protected apron 25 and drive screw 30 constitute, handle 13 and index dial 14 fuse, drive screw 30 in the handle 13 passes housing 1 and stretches in the lock core 2, and lock core 2 comprises ratchet 4, sector plate 34, gear 35 (A), 36 (B), ring I12 and 2 ring II10, gib head taper stock key 3 is contained in the circular hole at ratchet 4 centers, also offer 4 locked grooves 40 in the ratchet 4, the gib head end of ratchet 6 can combine with the arc-shaped slot in the ratchet 4, and the other end of ratchet 6 is connected with locking bolt 8 by little 7, can make locking bolt 8 rectilinear motions, between index dial 15 and cabinet door-plate 29, be provided with disk 15, on disk 15, be carved with operation witness marker 26 and coding maker 27.Between housing front panel and cabinet door-plate 29 protected apron 25 is housed also, a side is fixed with safeguard 21 by screw 22 in housing, and the end gib head 39 of safeguard 21 can insert in the side recess 38 of locking bolt 8.

The concrete operations of this lockset are as follows:

For example setting code is: password 15 88 66

A left side about turning to

The number of turns 432

(1) left-handed to word index dial 14, stir first group of lock core 2 through gib head taper stock key 3--ratchet 4--ring I12 and rotate,

The boss of first group of movement gear right side drives second group of lock core and rotates when stirring ring II10.

The boss of second group of lock core gear right side drives the 3rd group of lock core and rotates when stirring ring II10

When arrow mark that first number (15) in the setting code aligns on the fixed signal disk 15 for the 4th time exactly, stop.At this moment the 3rd group of lock core located, and makes first password number (15) produce effect.

(2) dextrorotation is to word index dial 14 (transmission principle is the same), stop when second the password number (88) in the setting code aligns fixed signal disk 15 upward arrow signs for the third time exactly, at this moment second password number (88) generation effect is located and made to second group of movement.

(3) left-handed to word index dial 14 (transmission principle is the same), when aligning for the second time arrow mark on the fixed signal disk 15 exactly, the 3rd the password number (66) in the setting code stop, at this moment first group of movement location and make the 3rd password number produce effect.So far, the notch coordination that falls to fastening of three groups of movements overlaps, and enters to fall to fastening state.

(4) dextrorotation is to word index dial 14 lentamente, and when the ratchet 6 that falls to fastening mechanism enters falling to fastening and just driving lock bolt in the notch and do straight reciprocating motion of three groups of lock cores, lock is unlocked.

(5) locking, dextrorotation promptly locks behind the above mess code all around to the word index dial.

Claims

1, a kind of mechanical cipher makes up theftproof lock, and it mainly is made of housing, handle, lock core, ratchet and locking bolt, it is characterized in that on the handle wherein index dial being housed, and the dried lock core that passes the cabinet door and be contained in the housing of the transmission spiral shell of handle is connected; Lock core wherein comprises ratchet, sector plate, gear A, B and ring I, II, offers the groove that holds ratchet buckle end on the ratchet, and in the heart hole gib head taper stock key is housed therein; The other end of ratchet wherein is connected with locking bolt by little axle, with stretching of control locking bolt; Housing front side is wherein sealed and is connected with the cabinet door-plate, and disk also is housed between cabinet door-plate and index dial, is carved with operation witness marker and coding maker thereon, and the trailing flank of housing is provided with back shroud, offers the patchhole that becomes the sign indicating number bar on back shroud.

2, as claim 1 fast theftproof lock, it is characterized in that between housing and cabinet door-plate, also being provided with the anti-drilling steel plate of high strength.

3, theftproof lock as claimed in claim 1 is characterized in that also being equipped with safeguard on the housing inside wall, be provided with a gib head at itself and the locking bolt end that joins, and can insert in the notch that is opened in the locking bolt side.

4, as claim 1 fast theftproof lock, it is characterized in that 4 connection keyways being arranged at the ratchet that is connected with the drive screw of handle.