CN2132797Y

CN2132797Y - Magnetic cipher lock and its key

Info

Publication number: CN2132797Y
Application number: CN 92222901
Authority: CN
Inventors: 蔡贵根
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-05-28
Filing date: 1992-05-28
Publication date: 1993-05-12
Anticipated expiration: 2002-05-28

Abstract

The utility model relates to a cipher lock and the key of the cipher lock, which is that a sliding bolt is sheathed on a lock core; a through hole is provided; the hole is provided with a long lock shaft and a lock shaft; the goal of opening the lock is reached by different positions of the lock shafts. The key is a key cylinder, which breaks the traditional key theory; magnetic material is provided to control the lock shafts to make a displacement. The utility model has the advantages of simple structure, high safety factor, high security performance and easy replacement of key. Under the condition that high safety factor is ensured, the high universality is the innovation of the lock.

Description

Magnetic cipher lock and its key

The utility model relates to a kind of coded lock, particularly magnetic cipher lock.

In the prior art, employed coded lock complex structure because number is reused, is exposed to others with password easily.

The purpose of this utility model provides a kind of high secret coefficient and password lock ﹠ key simple in structure.

To achieve these goals, the utility model has been broken lock ﹠ key structure in the past, utilizes magnetic principles to open lock, and concrete structure is that except that lock shaft and key, all the other all select for use the non-magnetic material to make.Concrete structure is: have a plurality of through holes on lock core, sliding bolt is enclosed within the lock core, has a plurality of through holes equally with phase-locked corresponding position, and should guarantee that the thickness (b) of sliding bolt equals two times of lock core thickness a(b=2a), lock shaft has two kinds of length, a kind of b that equals, a kind of a that equals, sliding bolt is enclosed within the lock core, all place the length lock shaft on its through hole respectively, its placement order, a kind of is to lack lock shaft in the bottom, another kind is to lack lock shaft on top.In slotting key one side, lock core also is equipped with limiting plate, and limiting plate and lock core opposite position have through hole equally, and this through hole should guarantee that less than the lock core through hole another side of lock core is equipped with the base plate of not perforate.Key is perforate on non-magnetic material, make the shank of the key, the key cylinder that permeability magnetic material is made inserts in the hole, the aperture of the shank of the key is less than the limiting plate aperture, hole count must not surpass the lock core hole count at most, hole count is minimum to be one, and magnetic material is also put into the hole of the shank of the key, control lock axial displacement as required, make the key cylinder magnetic conduction, key cylinder from spacing insertion, is driven lock shaft and moves, by the lock shaft order that places in advance, make different key cylinder magnetic conductions, thereby make the lock shaft displacement, reach the purpose that sliding bolt can be moved in lock core, reach the unlatching of lock.

Owing to adopt this kind structure, the structure of lock is simplified greatly, and secret coefficient increase, cost reduces, and this lock can be applied in the various occasions that need lock such as door lock, strongbox (cabinet), drawer respectively, opens simple, security performance is good, and can change password at any time as required, and key is equipped with simple, versatility is good, and the user is many this kind lock as if opening, and can be with a lot of keys, only need wear one, different locks are changed magnetic material and are got final product, and have avoided carrying the inconvenience of multiple key.

Be illustrated below in conjunction with example:

Fig. 1 is the elevation of lock.

Fig. 2 is the back side of lock.

Fig. 3 is the B-B sectional view of lock.

Fig. 4 is the key elevation.

Fig. 5 is a key A-A sectional view.

Fig. 2 is the locking state of lock, sliding bolt (8) displacement.Fig. 3 is the locking state of lock, lock shaft (3), (4) two kinds of positions, can can put magnetic post (12) by the hole on its shank of the key of key cylinder (10) (9) on the key, can not put yet, insert lock shaft (3) from the hole (2) of limiting plate (1), (4) original state is shown in figure (3), after inserting, key cylinder (10) makes lock shaft (3), (4) produce displacement, lock shaft (3), (4) position in hole (6) has two kinds, a kind of as shown in Figure 3 is that (3) are located at limiting plate (1), a kind of title M, be that (4) locate to claim N at limiting plate (1), key cylinder (10) inserts back lock shaft (3), (4) a displacement a is all arranged, lock shaft (3), (4) placement be in proper order from the position a displacement a is arranged the time, make sliding bolt (8) locked, position N then makes sliding bolt (8) open, so key cylinder (12) inserts lock shaft (3), when (4) being in placement order M, should locate to put magnetic material (12) in the hole (11) in the shank of the key (9), when key is stirred because the magnetic force of key cylinder (10), and with lock shaft (3), (4) restPose, be in the lock shaft placement order pairing keyhole in N position (11) and then do not put magnetic material (12), at this moment sliding bolt (8) can move, and reaches the unlatching of lock.(7) be base plate, lock core is (5), and return spring (13) has spacing preiection (14) on the lock core (5).

Claims

1, a kind of coded lock is characterized in that: slide bolt in lock core, and have through hole in same position, the through hole is placed with the length lock shaft, and limiting plate is placed on the lock core outside, also has through hole in same position, and the aperture is less than lock core aperture and lock shaft diameter, and the lock core another side is equipped with base plate.

2, coded lock according to claim 1 is characterized in that: sliding bolt thickness b equals 2 times of lock core thickness a, b=2a, and long lock shaft length is b, minor axis length is a.

3, a kind of magnetic key is characterized in that: have on the shank of the key and the identical through hole of lock core hole distance, the place, hole is equipped with key cylinder, and magnetic material also can be placed by place, the hole of the shank of the key.

4, magnetic key according to claim 3 is characterized in that: the key cylinder number is less than or equal to the lock core hole count, greater than 1.