CN2112665U

CN2112665U - Cipher lock

Info

Publication number: CN2112665U
Application number: CN 91231710
Authority: CN
Inventors: 尹启二
Original assignee: YIN QI ER
Current assignee: YIN QI ER
Priority date: 1991-12-17
Filing date: 1991-12-17
Publication date: 1992-08-12

Abstract

The utility model relates to a novel cipher lock. The utility model is characterized in that the lower part in a lock body is provided with a lock shaft, and the lock shaft is provided with three vertical holes which are respectively provided with a spring and a marble. The upper part in the lock body is provided with three cams, and the cams are composed of 12 arc lines which have the same center of circle and different radii. The different radii are marked with 12 different numbers which are displayed on the corresponding inner cipher disk and the corresponding outer cipher disk of each cam, and the corresponding points of the three marbles on the lock shaft in the lock body are respectively provided with one marble which is connected with each cam. The inner cipher disk and the outer cipher disk are shifted to drive the cams to control the position of the three marbles, so that the unlocking and the locking can be realized. The novel cipher lock has the advantages of much number combination, good security and high safety and reliability.

Description

Cipher lock

The utility model relates to a kind of coded lock.

The coded lock that uses exists password easily broken at present, the problem that confidentiality is not strong, thereby not ideal enough.

The purpose of this utility model is to provide a kind of novel cipher lock of strong security.

The utility model is made up of lock body, lock shaft, fore shaft and cam mechanism four parts, lock shaft is installed on bottom in the lock body, it inserts the fore shaft end and is triangular shape, afterbody is equipped with spring, tail end is equipped with handle, top has three upright openings spring and pellet shot from a slingshot is housed respectively, and lock shaft keeps left to move right and reaches clutch; Cam mechanism comprises three cams and interior code-disc and the outer code-disc corresponding with each cam, three cams are installed in the lock body internal upper part, cam is formed by the camber line of 12 concentric different radiis, different radii indicates 12 jack per stations and is presented on interior code-disc and the outer code-disc, interior code-disc is connected with two axles of outer code-disc by the same axle center of passing cam, and stretches out in outside the lock body; In the lock body with lock shaft on three pellet shot from a slingshot corresponding positions be equipped with code number corresponding isometric or do not wait long marble and each cam to join respectively.

Also be furnished with standby pellet shot from a slingshot with the pellet shot from a slingshot that cam joins, be used to reset password.

The utility model number combination is many, and good confidentiality also can be changed pellet shot from a slingshot voluntarily when divulging a secret, reset password, thereby safe and reliable, also has cost low in addition, makes advantages such as simple.

Accompanying drawing 1 is a schematic diagram of the present utility model.

Accompanying drawing 2 is that the A of Fig. 1 is to view.

Accompanying drawing 3 is that the B of Fig. 1 is to view.

Below in conjunction with accompanying drawing the utility model is elaborated.

Lock body (3) is a rectangular box body, there is long through-hole its underpart, Built-in lock axle (4), and the top of lock shaft (4) is the strong shape of triangle, afterbody is equipped with spring (14), tail end is equipped with handle (7), when handle (7) snaps in the fore shaft (8) on lock shaft (4) top during at lower position, and promptly can locking, when handle (7) when moving upper position to, lock shaft is toward moving left, can't locking, and have three upright openings on the lock shaft (4) spring (13) and pellet shot from a slingshot (6) are housed respectively; Lock body (3) top is an elongate slots, three cams (2) are installed in the groove, cam (2) is formed by the camber line of 12 concentric different radiis, differ 0.4mm between the radius, different radii indicate 12 jack per stations (1,2 ... 9,0, a, b) be presented on the interior code-disc (12) and outer code-disc (10) corresponding with cam (2), interior code-disc (12) is connected with two axles (15), (16) of outer code-disc (10) by the same axle center of passing cam (2), and stretches out in outside the lock body (3); Be equipped with code number corresponding isometric or do not wait long marble (5) and each cam (2) to join respectively with lock shaft (4) the sub-corresponding position that shoots in the lock body (3).

When handle (7) during at lower position, be that lock shaft (4) top snaps in the fore shaft (8), stir interior code-disc (12) (being positioned at door) or outer code-disc (10) (being positioned at outdoors), the position of driving cam (2) and spring (13) control pellet shot from a slingshot (5), (6), as shown in Figure 2, when three cams during all No. 3 positions, pellet shot from a slingshot is in separable state, promptly lock is opened, and any positional lock is in addition all pinned.

When handle (7) up, when not locking a door, in stirring, outer code-disc easily obtains password, for overcoming this defective, baffle plate (9) is housed on the top of three cams, spring (17) is housed on the lower shaft, on the code disk shaft sleeve (11) is housed in middle, screw (1) is equipped with in the lock body outside corresponding with middle interior code disk shaft, and screw (1) is unclamped, code-disc in the middle of promoting, make sleeve (11) push baffle plate (9) to, baffle plate (9) makes three cams leave pairing pellet shot from a slingshot (5), tightens screw (1) then, in this moment, outer code-disc is all ineffective, so reach secret purpose.

Claims

1, a kind of novel cipher lock is made up of lock body, lock shaft, fore shaft and cam mechanism, it is characterized in that lock shaft is installed on bottom in the lock body, lock shaft inserts the fore shaft end and is triangular shape, afterbody is equipped with spring, and tail end is equipped with handle, and top has three upright openings spring and pellet shot from a slingshot are housed respectively; Cam mechanism comprises three cams and interior code-disc and the outer code-disc corresponding with each cam, three cams are installed in the lock body internal upper part, cam is formed by the camber line of 12 concentric different radiis, different radii indicate 12 jack per stations be presented on code-disc and the outer code-disc, interior code-disc and outer code-disc are connected by two axles in the same axle center of passing cam and stretch out in outside the lock body; In the lock body with lock shaft on three pellet shot from a slingshot corresponding positions be equipped with code number corresponding isometric or do not wait long marble and each cam to join respectively.

2, coded lock according to claim 1 is characterized in that the pellet shot from a slingshot that joins with cam is furnished with the standby pellet shot from a slingshot that is used to change password.

3, coded lock according to claim 1 is characterized in that on the top of three cams baffle plate being housed, and spring is housed on the lower shaft, on the middle interior code disk shaft sleeve is housed, and screw is equipped with in the lock body outside corresponding with middle interior code disk shaft.