CN2784518Y

CN2784518Y - Anti-theft spiral lock

Info

Publication number: CN2784518Y
Application number: CN 200520095027
Authority: CN
Inventors: 吴开波
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-01-24
Filing date: 2005-01-24
Publication date: 2006-05-31
Anticipated expiration: 2015-01-24

Abstract

The utility model relates to a spiral burglarproof lock of which a key and a lock core are in spiral match. The utility model belongs to the technical field of locks and is composed of a lock body mechanism, a tongue-shaped lock head, a cylindrical lock head, attachment screws, a lock core outer casing, the lock core and the key. Except other structures which are same to an ordinary burglarproof lock, the utility model is characterized in that marble holes on the lock core outer casing and the lock core are in spiral distribution; the key is provided with convex strips and tooth tips; the spirals of the convex strips are matched with the marble holes. The utility model solves the problems that the marble holes of the existing burglarproof locks are all in a straight groove type distribution, and thieves can unlock the locks using straight elastic tools. The marbles can not be seen from the exterior of the lock which is hard to be unlocked without the key because a steel wire is hard to hook the marbles and enables the marbles to be poked back and forth; the lock adopts the matched spiral key, excludes the hidden danger that the lock can be unlocked by other keys and is suitable for being used on various security doors.

Description

The spiral theftproof lock

Affiliated technical field:

The utility model relates to a kind of theftproof lock, and particularly a kind of key and lock core are the spiral theftproof lock that spiral cooperates, and belong to lock technology field.

Background technology:

At present, the theftproof lock of selling on the market is straight channel type, if owner locks on having forgotten when going out, the robber can insert out ligulate head lock with the rigid thin slice of identity card or plastic sheet etc. and so on.Lock if owner has gone up, the robber can directly advance to draw out with the straight shape elasticity self-made tool of steel wire or toothpick and so on; Because straight channel type jack lock core can be seen pellet shot from a slingshot in lockhole, the robber can adopt steel wire of right-hand man Ge Na with straight formula instrument contact pellet shot from a slingshot, the right hand takes steel wire directly to inject lock core, upwards support and put down, slowly toward pulling back, hold sensation again, whereabouts of pellet shot from a slingshot, formed steel wire adjusting pellet shot from a slingshot with the same principle that opens the lock with the key, and left hand takes steel wire to keep a grip on the lock core end opening with the sensation rotational lock core, connecting like this to draw to be with changes, the right-hand man makes a concerted effort to cooperate, and lock just has been opened.The major defect of the various straight channel type anti-theft lock cores that Here it is uses at present.

Summary of the invention:

The purpose of this utility model is: provide a kind of bullet groove that overcomes existing anti-theft lock core to be straight channel type, the deficiency that the robber can draw out with straight shape resilient tool, employing is done spirality with the bullet groove and the key of lock core, the spiral theftproof lock that it can't be drawn out with other instrument outside.

The utility model is to realize above-mentioned purpose by following technical solution:

This spiral theftproof lock is made of lock body mechanism, ligulate tapered end, cylindrical tapered end, attachment screw, lock core shell, lock core and key, the structure and the installation site and identical of lock body structure, ligulate tapered end, cylindrical tapered end, attachment screw with the link position and the existing lockset of lock core shell, it is characterized in that: be shaped on the pellet shot from a slingshot hole that curl distributes on described lock core and the lock core shell, the lock core center has and the consistent helicla flute of pellet shot from a slingshot hole spiral; Key stretches on the lock core cylinder partly and is shaped on the spiral prominence band consistent with the helicla flute at lock core center, is shaped on the crown consistent with lock core marble hole on the spiral prominence band, and compression spring and finger are equipped with in the cylinder of key and shank junction, and a boss is arranged on the ligulate tapered end.

The utility model compared with prior art has following beneficial effect:

1, the spiral lock core be can't see the pellet shot from a slingshot in the helicla flute from the outside, directly can stretch with the thing of steel wire, toothpick and so on, is difficult to collude pellet shot from a slingshot, the pellet shot from a slingshot that more can not fiddle with directly advancing, so, there is not key seldom to open.

2, this lock adopts supporting spiral key, and is different fully with all kinds of keys in the market, do not have the hidden danger of opening with other key cover.

Description of drawings:

Fig. 1 is the front view of spiral theftproof lock:

Fig. 2 is the A-A sectional view of spiral theftproof lock;

Fig. 3 is the Key structure schematic diagram of spiral theftproof lock.

Among the figure: 1, lock body mechanism, 2, the ligulate tapered end, 3, cylindrical tapered end, 4, attachment screw, 5, lock core shell, 6, lock core, 7, key, 8, the pellet shot from a slingshot hole, 9, helicla flute, 10, the spiral prominence band, 11, the tooth class, 12, the compression spring, 13, finger, 14, boss.

The specific embodiment:

The lock body mechanism (1) of this spiral theftproof lock, ligulate tapered end (2), cylindrical tapered end (3), the structure of attachment screw (4) and installation site and effect and common theftproof lock are just the same, and lock body mechanism (1) is also in full accord with common theftproof lock by the connected mode and the mounting means of attachment screw (4) with lock core shell (5).The difference of this spiral theftproof lock and common theftproof lock is: be shaped on the pellet shot from a slingshot hole (8) that curl distributes on lock core shell (5) and the lock core (6), the center of lock core (6) is shaped on the centre bore that inserts key (7), be shaped on the helicla flute (9) consistent on the centre bore with the spiral of pellet shot from a slingshot hole (8), the column part of key (7) is shaped on the spiral prominence band (10) consistent with helicla flute (9), is shaped on crown (11) on the spiral prominence band (10).Compression spring (12) and finger (13) are equipped with in the column part of key (7) and the junction of shank.

The method that the utility model is installed on the door is the same with the mounting method of common theftproof lock, after finishing installation, with ligulate tapered end (2) door lock is lived earlier, the people is when helicla flute (9) precession 1/2nd of the centre bore of outdoors key (7) being aimed at lock core (6) or 2/3rds the degree of depth then, live not loose toward clawback the finger (13) of key (7) shank band compression spring (12) with the thumb of the hand of holding key (7) again, finger (13) is not inserted in the locating hole of lock core (6) end face, continue dextrorotation key (7) more on earth.Then, unclamp thumb, finger (13) is inserted in the locating hole of lock core (6) end face under the effect of compression spring (12), make key (7) with lock core (6) rotation, continue dextrorotation and take two turns, then two cylindrical tapered ends (3) are all lived door lock.

When opening the door, if after owner lived door lock as stated above, key (7) is not also transferred to be needed again to enter, that just continues counter the taking two turns of beginning, and two cylindrical tapered ends (3) are opened; Continue the counter-rotating half-turn again, ligulate tapered end (2) is opened; So far, door is all thoroughly opened.If after locking a door, key (7) is transferred to, when opening the door again, the people is when helicla flute (9) precession 1/2nd of outdoors key (7) being aimed at lock core (6) hole or 2/3rds the degree of depth, with the thumb of the hand of holding key (7) finger (13) of key (7) shank band compression spring (12) is not firmly loosed one's grip toward clawback again, continuation with key (7) dextrorotation on earth after, unclamp thumb and insert in the locating hole of lock core (6) end face by finger (13); Begin counter taking two turns again, then two cylindrical tapered ends (3) are opened; Continue the counter-rotating half-turn again, ligulate tapered end (2) is opened; So far, door is opened fully.

When moving back key (7), the finger (13) of dialling back key (7) shank band compression spring (12) with the thumb of the hand of holding key (7) is not loose, counter again taking two turns, and key (7) promptly withdraws from the helicla flute (9) of lock core (6).

In addition, a boss (14) is arranged on the ligulate tapered end of the present utility model (2), the shrinkage pool on the tapered end box on this boss (14) and the doorframe cooperates, and has stopped to insert with thin slice the hidden danger of the lock that opens the door.

Claims

1, a kind of spiral theftproof lock, it is made of lock body mechanism, ligulate tapered end, cylindrical tapered end, attachment screw, lock core shell, lock core and key, the structure and the installation site and identical of lock body structure, ligulate tapered end, cylindrical tapered end, attachment screw with the link position and the existing lockset of lock core shell, it is characterized in that: be shaped on the pellet shot from a slingshot hole that curl distributes on described lock core and the lock core shell, the lock core center has and the consistent helicla flute of pellet shot from a slingshot hole spiral; Key stretches on the lock core cylinder partly and is shaped on the spiral prominence band consistent with the helicla flute at lock core center, is shaped on the crown consistent with lock core marble hole on the spiral prominence band, and compression spring and finger are equipped with in the cylinder of key and shank junction, and a boss is arranged on the ligulate tapered end.