CN2352613Y

CN2352613Y - Theft-proof lock

Info

Publication number: CN2352613Y
Application number: CN 98234086
Authority: CN
Inventors: 李承伟; 王建欣
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-04-28
Filing date: 1998-04-28
Publication date: 1999-12-08
Anticipated expiration: 2008-04-28

Abstract

The utility model relates to an anti-theft lock which is composed of a lock body and a key 3, wherein the lock body comprises a lock sleeve 2 and a lock core 1, one side and the other side of the lock sleeve 2 are respectively provided with upper and lower passages (21, 22) of the lock sleeve, the side of the lock core 1 which corresponds to the passages (21, 22) of the lock sleeve is also provided with a passage 13 from an inner side to an outer side, each of the upper passage 21 is provided with a spring 212 and a cylinder 211 from top to bottom, and each of the lower passage 22 is provided with a magnetic force action device, such as a magnetic cylinder. The utility model also comprises a magnetic force action device which can be matched with the magnetic force action device of the lower passage of the lock core is arranged on a key body 31, such as magnetic blocks or iron blocks. The anti-theft lock can effectively avoided unlocking in a technical mode by adopting various skeletons or other tools, thereby, the utility model can improve the performance of safety and theft prevention of the lock largely.

Description

Theftproof lock

The utility model relates to lock technology, more particularly, relate to a kind of can effectively prevent technical unlocking theftproof lock.

The structure of conventional mechanical lock is utilized the switching that cooperates to come control lock of the interior pellet shot from a slingshot of key bit and lock gall usually, the greatest problem that the cylinder lock of this structure exists aspect antitheft is, if the tagger with " a seven " font inserts lock core, make lock core produce a torsion, at this moment, dislocation will take place and produce a scissors mouth in the mating holes between lock core and the lock tube, at this moment the iron wire hook with a band crotch hits pellet shot from a slingshot, pellet shot from a slingshot in the lock tube will be pushed up up by the lock core bullet, pellet shot from a slingshot after hook is decontroled in the lock tube will be by the spring top down, at this moment, the scissors mouth that pellet shot from a slingshot in the lock tube will be formed between lock core and the lock tube blocks, as long as hook hits pellet shot from a slingshot repeatedly, lock just is unlocked.This shows that its antitheft anti-technical opening performance is unsatisfactory.

The purpose of this utility model is to provide a kind of theftproof lock with new structure, this lock cooperates traditional mechanical billiard to cooperate with magnetic force and organically is incorporated into one, specifically, the purpose of this utility model is to provide a kind of theftproof lock that can effectively prevent technical unlocking, this theftproof lock can overcome the above-mentioned shortcoming of prior art, effectively prevent to adopt the technical unlocking of various master keys or above-mentioned instrument, thereby improve the security performance of lock.

The purpose of this utility model is to realize like this, constructing a kind of theftproof lock is made up of lock body and key 3, described lock body comprises lock tube 2, be inserted into the lock core 1 in lock tube 2 mesopores, it is characterized in that, one side of described lock tube 2 and opposite side are respectively equipped with lower channel (21 on one or more lock tubes, 22), described lock core 1 with two passages (21 of lock tube, 22) corresponding side also is provided with passage 13 from inside to outside, in each upper channel 21, spring 212 is housed from top to bottom, pellet shot from a slingshot 211, be provided with the magneticaction device at each lower channel 22, described key 3 comprises the shank of the key 33, the key body 31 that is connected with the shank of the key 33 also comprises the magneticaction device that can cooperate with the magneticaction device of described lock core second channel that is installed on the key body 31.

The theftproof lock that provides according to the utility model, it is characterized in that, the magneticaction device of the upper and lower passage 22 of described lock tube comprises magnetic bullet 222 and the copper locating pin 221 that is contained in from top to down in the passage, and the magneticaction device of described key 3 is provided in a side of the one or more iron blocks 32 on the key body 31.

The theftproof lock that provides according to the utility model, it is characterized in that, select the length of described copper locating pin 221 to make described magnetic bullet 222 when fallen by suction, just in time not be between lock core 1 and lock tube 2 connecting portions, and when described magnetic bullet 222 had been subjected to move on the suction, two end faces of described magnetic bullet 222 went out respectively in the upper and lower end face of lock core.

The theftproof lock that provides according to the utility model, it is characterized in that, the magneticaction device of described lock tube lower channel 22 comprises magnetic bullet 15, pellet shot from a slingshot 224 and the spring 225 that is contained in from top to down in lock core 1 and this passage 22, the magneticaction device of described key 3 is provided in a side of the one or more magnetic patch 34 on the key body 31, wherein the magnetic polarity of each magnetic patch 34 and 1 adjacent of lock core with the surperficial magnetic polarity of right magnetic bullet 15 identical.

Described theftproof lock according to the utility model provides is characterized in that, installs for two section 11 and 12 before and after described lock core 1 is divided into.

Implement the theftproof lock that the utility model provides, can effectively prevent to adopt the technical unlocking of various master keys or other instrument, thereby improved the safe antitheft performance of lock greatly.

Below in conjunction with drawings and Examples, further specify characteristics of the present utility model, in the accompanying drawing:

Fig. 1 is the sectional view of lock body structure among the embodiment of theftproof lock of the present utility model;

Fig. 2 is the structural representation of the lock core in the lock body of theftproof lock of the present utility model;

Fig. 3 is the partial structurtes amplification view after key inserts lock body structure shown in Figure 1;

Fig. 4 is the sectional view of lock body structure among another embodiment of theftproof lock of the present utility model;

Fig. 5 is the schematic diagram of the structure of the key that adopts of theftproof lock of the present utility model;

Fig. 6 is key that the utility model is the used transverse sectional view along A-A line gained among Fig. 5.

Each label among the figure is unitedly described as follows, the 1st, lock core, the 11st, the leading portion lock core, the 12nd, back segment lock core, the 13rd, the passage on the lock core, the 14th, pellet shot from a slingshot in the lock core, the 15th, the magnetic patch (magnetic bullet) in the lock core passage, the 2nd, lock tube, the 21st, lock tube upper channel, the 211st, upper channel pellet shot from a slingshot, the 212nd, the upper channel spring, the 22nd, lock tube lower channel, the 221st, the copper locating pin of lower channel 22, the 222nd, the magnetic bullet of dress in the lower channel 22, the 223rd, in the lower channel when the cavity of magnetic bullet 222 formation during by last the suction, the 224th, the copper marble in the lower channel, the 225th, the spring in the lower channel, the 3rd, key, the 31st, key body (tooth or hole), the 32nd, be embedded in the iron nail in the key body, the 33rd, the shank of the key, the 34th, the magnetic patch of inlaying on the key body.

The theftproof lock that the utility model provides comprises lock body and key, the structure of key as shown in Figure 5, the lock body structure among first embodiment is as shown in Figure 1.In Fig. 1, lock body comprises lock tube 2, is inserted into the lock core 1 in lock tube 2 mesopores, and the first half of lock body and Lower Half are provided with one or more passages respectively, and Fig. 1 only shows two upper channels 21 and a lower channel 22.As shown in Figure 2,, install for two section 11 and 12 before and after lock core can being divided into, when correct key is promptly inserted in normal use,, do not influence and insert key turns and open smoothly because leading portion 11 and back segment 12 fit tightly for the performance of the technical unlocking of improving the precaution.And when utilizing illegal key or instrument to attempt to unblank, can only rotate by the leading portion lock core, and can't make the rotation of back segment lock core, stoped proceeding of illegal unlatching effectively.

As shown in figures 1 and 3, on the lock core of being made up of front and back section 11 and 12 1, be respectively equipped with one or more passages from inside to outside, the internal orifice of each passage matches with the key bit end of insertion, and collar extension is relative with the passway of lock tube 2.And be respectively equipped with two groups of passages in both sides about in the of 2 at lock tube, be upper channel 21 and lower channel 22, in first embodiment of the present utility model, upper channel spring 212, upper channel pellet shot from a slingshot 211 are housed in upper channel 21 from top to bottom, 22 li of lower channels, magnetic bullet 222, copper locating pin 221 are housed from top to down.When not having key in the lock core or insert an incorrect conventional key, because the whereabouts of the magnetic bullet 222 in one or more lower channels, and the length of copper locating pin 221 is arranged so that magnetic bullet 222 just in time is between lock core 1 and lock tube 2 connecting portions, has stoped the rotation of lock core; Meanwhile, conventional upper channel pellet shot from a slingshot 211 also makes pellet shot from a slingshot drop between lock core 1 and lock tube 2 connecting portions owing to mismatch with key, has stoped the rotation of lock core, thereby lock core 1 can not be rotated, and lock can not be opened.When inserting one in the lock core during correct key, as shown in Figure 5 and Figure 6, this key not only has outside the lock body of conventional belt key bit, also on the appropriate location of key body, buried iron block 32, after inserting key, iron block 32 on the key body is just in time aimed at when the passway of magnetic bullet 222 is housed, owing to the effect of each other mutually inhaling of iron with magnetic, make the magnetic bullet 222 that is in falling state at ordinary times by last suction, and below form cavity 223, at this moment, two end faces of magnetic bullet 222 go out respectively on lock core in the hypomere face, and do not influence the relative motion between lock core 1 and the lock tube 2, and the principle of opening as for the cooperation and the conventional mechanical lock of the pellet shot from a slingshot in other key bits on the lock body and the passage is identical, thereby can screw key, lock is opened.

Because the theftproof lock according to above-mentioned first embodiment structure of the utility model can't make rear lock core produce torsion, adds and can't hit magnetic bullet by hook.When this lock being installed in when last, mechanical billiard is last (anti-drilling the putting of tapered end is marked with mark), and magnetic bullet is free movable in lock body.In key inserts lock, because of iron nail is housed on the key, make that the magnetic bullet of pin in lock tube will be drunk up, at this moment lock is unlocked.After key was extracted, magnetic bullet fell into lock tube, locks by pinning, thereby the safety of lock is improved greatly.

In second embodiment of the present utility model shown in Fig. 4, in the passage that the passage 13 of lock core 1 and lock tube lower channel 22 constitute, magnetic bullet 15, copper marble 224, spring 225 are housed from top to down, different with first embodiment with the key of this lock body cooperation is, appropriate location on the key body 31 is not pre-buried iron block 32 but inlays magnetic patch 34 that other structure is identical with first embodiment.When not inserting key or inserting wrong key, because one or more magnetic bullets 15 are under spring 225 and copper marble 224 effects, magnetic bullet 15 is by jack-up, length by copper marble 224 and magnetic bullet 15 is arranged so that copper marble 224 just in time is between lock core 1 and lock tube 2 connecting portions, has stoped the rotation of lock core; Meanwhile, mismatching of conventional pellet shot from a slingshot and key bit also makes lock core not rotate, and lock can not be opened.When inserting one in the lock core during correct key, because this key is inlaid with magnetic patch 34 in position, after inserting key, magnetic patch 34 on the key body is just in time aimed at when the passway of magnetic bullet 15 is housed, because both relative masks have identical magnetic polarity, it is magnetic bullet, magnetic patch is both the N utmost point or the S utmost point, the effect that repels each other each other of magnetic bullet 15 and key magnetic patch 34, make the magnetic bullet 15 that is in the jack-up state at ordinary times by on push away, and form cavity 16 (Fig. 4) up, at this moment, end face between lock core and lock tube is flat, can do relative motion between lock core 1 and the lock tube 2, the principle of opening as for the cooperation and the conventional mechanical lock of the pellet shot from a slingshot in other key bit on the lock body and the passage is identical, the few description.

The course of work according to the theftproof lock of the utility model second embodiment is such, in key inserts lock core, be contained on the key flute profile and the magnetic bullet in the lock core match, at this moment, produced a thrust, the copper marble that inserts lock core pushed to (hole of lock core and magnetic bullet are bigger than the hole and the copper marble of lock tube, no matter big again thrust, the magnetic bullet in the lock core can not enter lock tube yet, because of the magnetic bullet in the lock core is withstood by lock tube), at this moment, lock just is unlocked.After key clawed, spring promoted copper marble and falls, and lock core pins.

Claims

1. theftproof lock, form by lock body and key (3), described lock body comprises lock tube (2), be inserted into the lock core (1) in lock tube (2) mesopore, it is characterized in that, one side of described lock tube (2) and opposite side are respectively equipped with one or more lock tube upper channels (21) lock tube upper channels (21), lock core (1) with two passages (21 of lock tube, 22) corresponding side also is provided with passage (13) from inside to outside, spring (212) is housed in each upper channel (21) from top to bottom, pellet shot from a slingshot (211), be provided with the magneticaction device at each lower channel (22), described key (3) comprises the shank of the key (33), the key body (31) that is connected with the shank of the key (33) also comprises the magneticaction device that can cooperate with the magneticaction device of described lock core lower channel that is installed on the key body (31).

2. theftproof lock according to claim 1, it is characterized in that, the magneticaction device of described lock tube lower channel (22) comprises magnetic bullet (222) and the copper locating pin (221) that is contained in from top to down in the passage, and the magneticaction device of described key (3) is provided in a side of the one or more iron blocks (32) on the key body (31).

3. theftproof lock according to claim 2, it is characterized in that, select the length of described copper locating pin (221) to make described magnetic bullet (222) when fallen by suction, just in time not be between lock core (1) and lock tube (2) connecting portion, and when described magnetic bullet (222) had been subjected to move on the suction, two end faces of described magnetic bullet (222) went out respectively in the upper and lower end face of lock core.

4. theftproof lock according to claim 1, it is characterized in that, the magneticaction device of described lock tube lower channel (22) comprises magnetic bullet (15), pellet shot from a slingshot (224) and the spring (225) that is contained in from top to down in lock core (1) and this passage (22), the magneticaction device of described key (3) is provided in a side of the one or more magnetic patch (34) on the key body (31), wherein the magnetic polarity of each magnetic patch (34) and adjacent of lock core (1) with the surperficial magnetic polarity of right magnetic bullet (15) identical.

5. according to described any one the described theftproof lock of claim 1-4, it is characterized in that installed two sections (11 and 12) before and after described lock core (1) was divided into.