CN2685467Y - Antitheft cylinder lock and key thereof - Google Patents

Abstract

The utility model relates to an antitheft cylinder lock and a matching key. A lock core is transversally provided with lock sheet slots. Two lock sheets which are fore-and-aft mutually stacked and are controlled by lock sheet springs to left and right move are arranged inside each lock sheet slot. A rectangle key hole is arranged in the middle of the lock sheets. The top and the bottom of the lock sheet of the long edge of the rectangle key hole are respectively provided with a small convex block, or the upper corner or the lower corner of the lock sheet of the long edge of the rectangle key hole is provided with a small convex block. Each lock sheet is provided with a V-shaped gap corresponding to a longitudinal lock core cylinder slot. A lock shell is provided with a lock shell locking slot corresponding to the position of the longitudinal lock core cylinder slot. A lock core cylinder is arranged inside the longitudinal lock core cylinder slot. The matching key adopts a structure that the widths of slot key teeth are equal or concave gap key teeth are arranged on the outer edge of the plane of a key body. The antitheft cylinder lock has the compound function of a cylinder switch and a lock sheet switch, excellent antitheft performance, and convenient use.

Description

A kind of antitheft sylinder and key thereof

Technical field:

The utility model relates to a kind of lock, especially mechanical anti-theft lock and key thereof.

Background technology:

Production at present and the cylinder lock that uses, though it is multifarious different, but its inner pellet shot from a slingshot construction of switch is identical: promptly generally be divided into two layers, one deck is a lock housing, and one deck is a lock core, adorn a spring in the pellet shot from a slingshot hole, two pellets shot from a slingshot (lock housing pellet shot from a slingshot and lock core marble), the contact surface between lock housing and the lock core is a release line, the pellet shot from a slingshot head between two pellets shot from a slingshot is an opening point, when opening point is equal with release line, promptly be " opening ".Need not be key operated, when being technical opening, in case insert rotational lock core, the pellet shot from a slingshot hole off normal will occur and form a small stair on release line, the pellet shot from a slingshot that is pushed is easy to rest on the small stair, therefore (just resting on the release line) is in " opening ", causes the unlatching and do not have anti-theft feature easily of this lock.

With getting more another kind " the young lock of sheet " though various in style, but the young beginning of its inner sheet structure also is identical, promptly generally be divided into two layers, one deck lock housing one deck lock core, adorn a spring in the young groove of sheet, a sheet son, the contact surface between lock housing and the lock core is a release line, the young head of sheet is an opening point, is opening when the young head of sheet is equal with release line.The slice, thin piece head inserted in the lock slots of lock housing when tapered end was closed.During technical opening, use the insert rotational lock core, the notch on release line can form a small stair, and the sheet that is struck is easy to be laid on the small stair, and it is on the release line, forms opening, therefore causes the unlatching and do not have anti-theft feature easily of this lock.

The above-mentioned mechanical lock of opening with key, the key that is adopted all will be in accordance with regulations direction insert, make key edge teeth prop up the top pellet shot from a slingshot or the sheet son can open, when the key direction of insertion is opposite, then do not drive lock, thereby use very inconvenience.The patent No. is a kind of antitheft sylinder of 01276723.9, constitute by lock housing, lock core, locking plate and pellet shot from a slingshot, lock core laterally has the locking plate groove, but the locking plate that two front and back are folded mutually, controlled move left and right by the locking plate spring is housed in every locking plate groove, rectangle keyhole in the middle of the locking plate has projection on one side, every locking plate has the lock housing lock slots corresponding to lock core marble groove place longitudinally, be placed with lock core marble in the lock core marble groove, key adopts two-sided interior dental structure, make this lockset that the complex function of pellet shot from a slingshot switch and locking plate switch be arranged, theftproof is fabulous.But this patent only discloses the lock and the corresponding key of a kinds of structures, and kind is single.

Summary of the invention:

The utility model purpose is to overcome 01276723.9 utility model patent and has the single defective of kind, and providing multiple does not have corresponding key just can not unblank, and theftproof is good, and slotting key is regardless of direction, insert and just can unblank, easy to use, the mechanical anti-theft lock of applied range.

The scheme that the utility model purpose realizes is: the antitheft sylinder that is provided is made of lock housing, lock core, locking plate and pellet shot from a slingshot, laterally have several locking plate grooves at lock core, it is folded mutually that two front and back are housed in each locking plate groove, opening direction is opposite each other, the locking plate of two shared locking plate springs, there is rectangular hole the centre of every locking plate, and a small lugs is left on the long limit in hole, when this small lugs was identical in each locking plate keyhole position, the V-notch position of each piece locking plate then just changed according to the spoon tooth.Every locking plate has V-notch corresponding to lock core marble groove longitudinally, lock housing has the lock housing lock slots corresponding to lock core marble groove place, put into lock core marble in the lock core marble groove, it is characterized in that locking plate on the long limit of keyhole respectively leaves a small lugs up and down on the locking plate on the long limit of keyhole or inferior horn leave small lugs.When shutting, two locking plates because of V-notch all not the subtend lock core marble push up and compel lock core marble its convex protrusion portion is stretched in the lock housing lock slots, make this lock have the complex function of pellet shot from a slingshot switch and locking plate switch simultaneously.

The matched key of the new shape lock of this practicality be adopt two-sided in or outer dental structure, promptly be an irregular wave shape or the jagged wide groove formation spoon tooth that waits at the one side or the two-sided edge that has of flat spoon body; Or have left and right sides shape irregular wave shape identical or inequality or zigzag or sawtooth wave mixings shape notch at the plane outward flange of flat spoon body and constitute a spoon tooth.When in that flat spoon body is two-sided when opening spoon tooth, the shape of two sides spoon tooth is identical.Because the spoon tooth on this spoon two sides is the same, do not divide otherwise just have, thus just needn't the branch direction when unblanking, arbitrarily just insert and can open, very convenient.

When the utility model uses, insert key, the interior spoon tooth of key directly drives locking plate by promoting the small lugs in the locking plate hole, make all locking plate V-notchs all align lock core marble, at this moment, under the effect of pellet shot from a slingshot spring, lock core marble falls in the V-notch automatically and makes its boss withdraw from the lock housing lock slots, maintain an equal level with lock housing, lock core release line, as long as the twisting key gets final product rotational lock core, lock is opened; Extract key, every two overlapping locking plates flick to both sides under the effect of locking plate spring, make V-notch depart from lock core marble, and the urgent lock core marble in locking plate top moves up simultaneously, and the boss of lock core marble is inserted in the lock housing lock slots.Owing to adopting combination switch and constituting by two locking plates, defense technique unlatching effectively, this key of configuration is not just opened, even MASTERKRY, advanced unlocking tools such as " Unlocking guns ", also can't open, theftproof performance is fine, is specially adapted to some important departments such as safety cabinet, security door, anti-theft lock for motored vehicle etc.

The utility model increases small lugs or changes small lugs in the position of keyhole at keyhole, and the supporting also corresponding change key tooth structure of key spoon body makes it to have diversified structure.

Description of drawings:

Fig. 1 is the cross-sectional view of an embodiment of the utility model.

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

Fig. 3 is the cross-sectional view of second embodiment of the utility model.

Fig. 4 is the A-A sectional view of Fig. 3.

Fig. 5 is the cross-sectional view of the 3rd embodiment of the utility model.

Fig. 6 is the A-A sectional view of Fig. 5.

Fig. 7 is the Key structure schematic diagram that supporting Fig. 1, Fig. 3 and lock embodiment illustrated in fig. 5 use.

Fig. 8 is the A-A sectional structure chart of Fig. 7.

Fig. 9 is the cross-sectional view of the 4th embodiment of the utility model.

Figure 10 is the A-A sectional view of Fig. 9.

Figure 11 is the cross-sectional view of the 5th embodiment of the utility model.

Figure 12 is the A-A sectional view of Figure 11.

Figure 13 locks the Key structure schematic diagram of use for supporting Fig. 9 and Figure 11 embodiment.

Figure 14 is the A-A cut-away view of Figure 13.

The specific embodiment:

Fig. 1-2 illustrated embodiment theftproof lock, have lock core marble groove 6 and lock housing lock slots 5 at lock core 7 and lock housing 4 vertical correspondences respectively, the one sheet lock core marble 1 that has a recessed groove 13 is housed in the lock core marble groove 6, in recessed groove 13, puts into pellet shot from a slingshot spring 2 backs and along lock core 7 places shutoff recessed groove 13 pellet shot from a slingshot spring 2 is fixed with pellet shot from a slingshot spring lid 3.Lock core 7 laterally has five locking plate grooves 12, it is folded mutually that two front and back are housed in each locking plate groove 12, opening direction is opposite each other, and leave the locking plate 11 and the locking plate 9 of mobile space, the shared locking plate spring 10 in drift angle place below two locking plates, every locking plate corresponding to lock core marble groove 6 one to above have " V " v notch v 8, the centre of locking plate has a rectangle keyhole 22, the locking plate on keyhole 22 long limits respectively leaves a small lugs 14 up and down, when small lugs 14 was identical in each locking plate keyhole 22 position, V-notch 8 positions of each piece locking plate then changed according to spoon tooth 21 height.

When no key inserts, overlapping locking plate 11 and 9 moves to both sides under the effect of locking plate spring 10, V-notch 8 on it departs from lock core marble groove 6, and this moment, locking plate 11,9 top lock core marbles 1 moved up, and lock core marble 1 projection is partly inserted in the lock housing lock slots 5.When inserting key 20 from keyhole 22, after the spoon tooth 21 of key 20 coincide with the small lugs 14 of symmetry, two locking plates 11,9 move to the center, make V-notch 8 overlapping and align lock core marble groove 6, under the effect of pellet shot from a slingshot spring 2, lock core marble 1 falls in the breach 8 automatically, and the projection of its upper end partly also withdraws from lock housing lock slots 5 and maintains an equal level with release line, at this moment, as long as getting final product rotational lock core, the twisting key partly unblanks.

The difference of first embodiment theftproof lock is as follows shown in second embodiment theftproof lock shown in Figure 3 and Fig. 1-2: lock core marble 1 respectively has a gap slot 13 on both sides, respectively adorns a pellet shot from a slingshot spring 2 in each gap slot 13.

The difference of the 3rd embodiment theftproof lock shown in Fig. 5-6 and the foregoing description theftproof lock is as follows: lock core marble 1 does not have recessed groove 13, there are not pellet shot from a slingshot spring 2 and spring cup 3, and have 5 lock housing pellet shot from a slingshot holes 16 corresponding to the position of lock core marble 1 in lock housing 4, a lock housing pellet shot from a slingshot 15 and spring 17 are housed in each pellet shot from a slingshot hole 16.

Be to be matched in above-mentioned first, second, third key that the embodiment theftproof lock is used shown in Fig. 7-8.Have the wide groove that waits that the same and edge of shape is irregular wave shape on two planes of flat spoon body 20 and constitute a spoon tooth 21.

The difference of the 4th embodiment theftproof lock and above-mentioned the 3rd embodiment theftproof lock shown in Fig. 9-10 is: the locking plate on the long limits of the 3rd embodiment theftproof lock keyhole 22 is respectively left a small lugs 14 up and down change the left and right sides that small lugs 14 is located at the locking plate top into.

The difference of the 5th embodiment theftproof lock and above-mentioned second embodiment theftproof lock shown in Figure 11-12 is: the locking plate on the long limits of second embodiment theftproof lock keyhole 22 is respectively left a small lugs 14 up and down change the left and right sides that small lugs 14 is located at the locking plate top into.

Be to be matched in above-mentioned the 4th, the 5th key that the embodiment antitheft sylinder is used shown in Figure 13-14.Two plane outward flanges at flat spoon body 20 have a left and right sides shape irregular zigzag notch formation spoon tooth 21 inequality.

Claims (3)

1. antitheft sylinder, by lock housing (4), lock core (7) and pellet shot from a slingshot constitute, it is folded mutually that two front and back are housed in the locking plate groove (12) that lock core (7) laterally has, by locking plate spring (10) but control move left and right locking plate (11) and locking plate (9), rectangle keyhole (22) is arranged in the middle of the locking plate, small lugs (14) is left on the long limit of keyhole (22), when this small lugs (14) at each locking plate keyhole (22) when the position is identical, the V-notch of each locking plate (8) position then changes according to spoon tooth (21) height, every locking plate has V-notch (8) corresponding to lock core marble groove (6) longitudinally, lock housing (4) locates to have lock housing lock slots (5) corresponding to lock core marble groove (6), be placed with lock core marble (1) in the lock core marble groove (6), it is characterized in that locking plate on the long limit of keyhole (22) respectively leaves a small lugs (14) up and down on the locking plate on the long limit of keyhole (22) or inferior horn leave small lugs (14).

2. one kind is matched in the key that the described antitheft sylinder of claim 1 uses, and it is characterized in that in the one side of flat spoon body (20) or two-sidedly has that the edge is irregular wave shape or the jagged wide groove that waits constitutes a spoon tooth; Or the plane outward flange of flat spoon body (20) has left and right sides shape irregular wave shape identical or inequality or a zigzag or a sawtooth wave mixing shape notch formation spoon tooth (21).

3. the key that uses according to the described antitheft sylinder of claim 2 is characterized in that the two-sided spoon of flat spoon body (20) thread form shape is identical.

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