CN201794381U

CN201794381U - Master key unlocking preventive computer single lock

Info

Publication number: CN201794381U
Application number: CN2010202622656U
Authority: CN
Inventors: 吴宝富
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-07-16
Filing date: 2010-07-16
Publication date: 2011-04-13
Anticipated expiration: 2020-07-16

Abstract

Disclosed is a master key unlocking preventive computer single lock. A structure including a connecting rod and a dial wheel of an existing computer single lock are changed into a structure including a key push rod, a lock cylinder dialing part, a dial button dialing part and a dial wheel, and springs are arranged at the tails of the lock cylinder dialing part and the dial button dialing part. When a key is inserted into a lock cylinder, the key pushes forwards so that the dial button dialing part is separated from a dial wheel inner hole by the aid of the key pusher, the lock cylinder dialing part is pushed to enter the dial wheel inner hole by the spring of the lock cylinder dialing part, and then the dial wheel can be driven to unlock the lock. As the connecting rod in the existing computer single lock is omitted and a groove at the head of the connecting rod also omitted, a steel wire hook can not be used for unlocking the lock from the groove. Although a master key can be used for rotating the lock cylinder, the key push rod can not be pushed forwards when the lock cylinder rotates, and the lock still cannot be unlocked.

Description

Preventing universal key computer list is unblanked

Technical field

The present invention relates to a kind of computer list and unblank, especially a kind of preventing universal key computer list of crotch steel wire or unlocked by universal key that can prevent is unblanked.

Background technology

At present, the known computer list key component of unblanking adopts coupling bar to add the structure of thumb wheel: after key inserted lock core, key head entered in the coupling bar head recess, thereby drove coupling bar, drove thumb wheel by coupling bar again and reached and open this lock.If without key, behind crotch steel insertion lock core, the steel wire crotch enters (though lock core locking this moment in the coupling bar head recess, but coupling bar is still rotatable), can drive coupling bar easily equally, drive thumb wheel by coupling bar again and reach this lock of unlatching, repeatedly test less than through reality and just can open in 3 seconds, be absolutely unsafe.

Summary of the invention

In order to overcome the existing computer list deficiency that available crotch steel wire opens easily of unblanking.The invention provides a kind of preventing universal key computer list and unblank, can thoroughly stop with the crotch steel wire and open, and can prevent unlocked by universal key, thereby greatly improve degree of safety.

The technical solution adopted for the present invention to solve the technical problems is: the structure of stirring that thumb wheel and coupling bar constituted during existing computer list was unblanked is abolished, make the structure of stirring that thumb wheel and key push rod, lock core shifting part and toggle shifting part constitute into, and lock core shifting part and toggle shifting part afterbody are equipped with spring.When key inserted lock core, the key push rod broke away from the thumb wheel endoporus with the toggle shifting part under key promotes forward, and under lock core shifting part spring promoted, the lock core shifting part entered the thumb wheel endoporus, and can drive thumb wheel this moment, opens this lock by thumb wheel.When not inserting the key turns toggle, because the thrust of toggle shifting part spring is much larger than the thrust of lock core shifting part spring, under toggle shifting part spring promotes, the toggle shifting part enters the thumb wheel endoporus, key push rod and lock core shifting part are pushed away the thumb wheel endoporus, rotate toggle and drive the toggle shifting part, drive thumb wheel by the toggle shifting part again, open this lock by thumb wheel by toggle afterbody groove.Because abolished the coupling bar of existing computer list in unblanking, there has not been the coupling bar head recess that can utilize for the steel wire crotch, thoroughly stop crotch steel wire and various external unlocking tool to skip the possibility that lock core is directly stirred the toggle shifting part.Though with master key energy rotational lock core, can't in rotational lock core, promote the key push rod forward, still can't open this lock.

The invention has the beneficial effects as follows: can thoroughly stop with the crotch steel wire and open, and can prevent unlocked by universal key, thereby greatly improve degree of safety.

Description of drawings

The present invention is further described below in conjunction with drawings and Examples.

Fig. 1 is the structural representation (key insertion state) of first embodiment of the invention.

Fig. 2 is the structural representation (not inserting the key state) of first embodiment of the invention.

Fig. 3 is the structural representation (key insertion state) of second embodiment of the invention.

Fig. 4 is the structural representation (not inserting the key state) of second embodiment of the invention.

Do not belong to other parts in the lock of the present invention (as stir to drag and stretch sheet, dead bolt, keeper, fixture, lock housing etc.), do not omit among the figure and draw, and made to simplify or omit sign not relating to detail section of the present invention in the drawn part.

The narrow groove 9. toggle shifting part springs of flat shaft head 7. keys, the 8. toggle 8a. toggle afterbody groove 8b. toggle afterbody wide groove 8b. toggle afterbodys of the narrow key 6d. of narrow groove 4. key push rods, the 5. lock core shifting part 5a. lock core shifting part head 5b. lock core shifting parts of the slotted hole 3b. thumb wheel endoporus wide groove 3c. thumb wheel endoporus wide key 5c narrow key 6. toggle shifting part 6a. toggle shifting part flat shaft portion 6b. toggle shifting part wide key 6b. toggle shifting parts of lock core shifting part toggle shifting part 10. lock core shifting part springs in the narrow groove 2d. of 1. tapered ends, the 2. lock core 2a. lock core afterbody shifting part hole 2b. lock core afterbody wide groove 2c. lock core afterbodys lock core afterbody push-rod hole 3. thumb wheel 3a. thumb wheels among the figure

The specific embodiment

In the drawings, thumb wheel and coupling bar constituted during existing computer list unblanked stirs the structure abolishment, make the structure of stirring that thumb wheel 3 and key push rod 4, lock core shifting part 5 and toggle shifting part 6 constitute into, and lock core shifting part 5 and toggle shifting part 6 afterbodys are equipped with spring 9 and 10.

In first embodiment illustrated in figures 1 and 2, key push rod 4 and lock core shifting part 5 are for be arrangeding in parallel respectively, because the unlatching that the computer list is unblanked need be rotated more than the half-turn, the flat shaft head 6d of toggle shifting part enters slotted hole 3a in the thumb wheel in order to prevent rotation from acting on down to stop at toggle shifting part spring 9, promote lock core shifting part 5, make it break away from slotted hole 3a in the thumb wheel, so slotted hole 3a is asymmetric in flat shaft head 6d of toggle shifting part and the thumb wheel.

In Fig. 1, when the lock core 2 in the key 7 insertion tapered ends 1, flat shaft head 6d breaks away from slotted hole 3a in the thumb wheel to key push rod 4 with the toggle shifting part under key 7 promotes forward, lock core shifting part 5 moves forward under lock core shifting part spring 10 promotes, lock core shifting part head 5a enters the interior slotted hole 3a of thumb wheel can drive thumb wheel 3 this moment, opens these locks by thumb wheel 3.

In Fig. 2, when not inserting key turns toggle 8, because the thrust of toggle shifting part spring 9 is much larger than the thrust of key shifting part spring 10, under toggle shifting part spring 9 promotes, the flat shaft head 6d of the toggle shifting part of toggle shifting part 6 enters slotted hole 3a in the thumb wheel, and slotted hole 3a in key push rod 4 and the lock core shifting part head 5a disengaging thumb wheel is all entered respectively in lock core afterbody push-rod hole 2d and the lock core afterbody shifting part hole 2a.Rotate toggle 8 and drive the flat shaft portion 6a of toggle shifting part, drive thumb wheel 3 by the flat shaft head 6d of toggle shifting part again, open this lock by thumb wheel 3 by toggle afterbody groove 8a.

In second embodiment shown in Fig. 3 and Fig. 4, key push rod 4 and lock core shifting part 5 are combined into one and are that concentric setting, intermediate cylindrical partly are key push rod 4, and its outside is a lock core shifting part 5.Because the unlatching that the computer list is unblanked need be rotated more than the half-turn, enter thumb wheel endoporus two groove 3b and 3c for preventing to rotate to stop at following toggle shifting part two key 6b of toggle shifting part spring 9 effects and 6c, promote key push rod 4 and lock core shifting part 5, make lock core shifting part two

key

5b and 5c break away from thumb wheel endoporus two groove 3b and 3c, so toggle shifting part two key 6b and 6c, lock core shifting part two key 5b and 5c, toggle afterbody two groove 8b and 8c, lock core afterbody two

groove

2b and 2c and thumb wheel endoporus two groove 3b and 3c are asymmetric, and height dimension and width dimensions are all inequality.

In Fig. 3, when the lock core 2 in the key 7 insertion tapered ends 1, lock core 2 can rotate, key push rod 4 breaks away from thumb wheel endoporus two groove 3b and 3c with toggle shifting part 6 under key 7 promotes forward, drive lock core shifting part two

key

5b and 5c by lock core afterbody two

groove

2b and 2c, lock core shifting part 5 is rotated, when the wide key 5b of lock core shifting part goes to the coincidence of thumb wheel endoporus wide groove 3b position (the narrow key 5c of lock core shifting part this moment also overlaps with the narrow groove 3c of thumb wheel endoporus position), under lock core shifting part spring 10 promotes, the wide key 5b of lock core shifting part enters (the narrow key 5c of lock core shifting part this moment also enters in the narrow groove 3c of thumb wheel endoporus) in the thumb wheel endoporus wide groove 3b, can drive thumb wheel 3 this moment, opens this lock by thumb wheel 3.

In Fig. 4, when not inserting key turns toggle 8, because the thrust of toggle shifting part spring 9 is much larger than the thrust of lock core shifting part spring 10, key push rod 4 retreats under toggle shifting part spring 9 promotes, drive toggle shifting part two key 6b and 6c by toggle afterbody two groove 8b and 8c, toggle shifting part 6 is rotated, when the wide key 6b of toggle shifting part goes to the coincidence of thumb wheel endoporus wide groove 3b position (the narrow key 6c of toggle shifting part this moment also overlaps with the narrow groove 3c of thumb wheel endoporus position), under toggle shifting part spring 9 thrust, the wide key 6b of toggle shifting part enters (the narrow key 6c of toggle shifting part this moment also enters in the narrow groove 3c of thumb wheel endoporus) in the thumb wheel endoporus wide groove 3b, meanwhile will promote lock core shifting part 5 makes it break away from thumb wheel endoporus two groove 3b and 3c, can drive thumb wheel 3 this moment, opens this lock by thumb wheel 3.

Because abolished the coupling bar of existing computer list in unblanking, there has not been the coupling bar head recess that can utilize for the steel wire crotch, thoroughly stop crotch steel wire and various external unlocking tool to skip the possibility that lock core is directly stirred the toggle shifting part.

Though with master key energy rotational lock core 2, can't in rotational lock core 2, promote key push rod 4 forward, still can't open this lock.

Claims

1. a preventing universal key computer list is unblanked, it is characterized in that: abolish existing computer list and stir structure by what thumb wheel and coupling bar constituted in unblanking, make into by the stir structure of thumb wheel (3), and lock core shifting part (5) afterbody is provided with spring (10) with key push rod (4), lock core shifting part (5) and toggle shifting part (6) formation.

2. unblank according to the described preventing universal key computer of claim 1 list, it is characterized in that key push rod (4) and lock core shifting part (5) are provided with respectively.

3. unblank according to the described preventing universal key computer of claim 1 list, it is characterized in that key push rod (4) is combined into one into concentric setting with lock core shifting part (5), intermediate cylindrical partly is a key push rod (4), and its outside is lock core shifting part (5).