CN2110056U

CN2110056U - Cipher lock

Info

Publication number: CN2110056U
Application number: CN 91219754
Authority: CN
Inventors: 冯栋梁; 蔡强
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-08-06
Filing date: 1991-08-06
Publication date: 1992-07-15

Abstract

The utility model discloses a cipher lock, comprising a lock-tongue (14), a lock brake (13), a dial (3), a lock core (8) and a turn knob (4). The outer circle of the dial is provided with a cam, and the upper side of the cam is provided with a sequence number. The inner circle of the dial is arranged with gaps at the position which is corresponding to the cam on the outer circle, a marble (9) is arranged in the lock core, and a pressure spring (10) is pressed on the gaps on the inner circle of the dial. When the cipher lock is opened, the turn knob is rotated by hand and the dial is driven to rotate, and the marble in the lock core can be jumped into the adjacent gap from one gap of the inner circle of the dial when a grid is rotated away. The number of the grid can be judged by hearing the sound and using the hand feeling, the surface of the turn knob has no letters, and the utility model has good confidentiality.

Description

Cipher lock

The utility model relates to a kind of structure of combination lock

Coded lock commonly used is generally the number knob is rotated by certain digital order, lock can be opened, and because of being carved with numeral on the number knob, security performance is good not enough.For example Chinese patent 88216969.6 has been introduced a kind of combination lock of for bicycle, and by making the breach of three number sheets all aim at button behind the above-mentioned rotation number knob, button drives ratchet and discharges ratchet exactly, thereby lock is opened.

The purpose of this utility model is to introduce on a kind of knob the not coded lock of label code.

This coded lock comprises dead bolt, stop, figure disc, lock core and knob.Figure disc is enclosed within on the lock core, one stop breach is arranged on the inner periphery of figure disc, the upper end of stop is facing to the inner periphery of figure disc, dead bolt is pressed to by a spring in its lower end, one circle projection is arranged on the excircle of figure disc, be composed of serial number on the projection, with respect to the projection place on the excircle one circle breach is arranged on the inner periphery of figure disc, a pellet shot from a slingshot is arranged in the lock core, be pressed in by a stage clip on the breach of figure disc inner periphery, a positioning block is arranged on the lock core, this locating piece covers the projection on the figure disc excircle, and knob sleeve and covers the serial number on the figure disc outside figure disc, one projection is arranged on the knob inner edge, and this projection is stuck between two projections on the figure disc excircle.

When this coded lock uses, use the hand turning knob, drive figure disc and rotate, the figure disc revolution is crossed lattice, and the pellet shot from a slingshot in the lock core jumps to another adjacent breach from a breach of figure disc inner periphery, can hear a peal, and feel also clearly.Number on the figure disc of this coded lock should be arranged like this: the numeral on the projection that locating piece is pushed down is 0 o'clock, and the stop breach on the figure disc is just in time aimed at stop.When unblanking, the backward rotation knob blocks up to the projection of the knob inner edge piece that is positioned, and the numeral on the projection that this moment, locating piece covered is the password number.(user should remember this numeral) with the corresponding lattice number of knob forward rotation, determines it with listening sound and feel to judge, this moment, stop was just in time aimed at the stop breach, stop can be pushed in the stop breach, and dead bolt is discharged, and dead bolt is promptly removable, and lock just is unlocked.When closing locking, dead bolt is resetted, stop is pressed to by spring in the breach of dead bolt, and its upper end is promptly withdrawed from the stop breach from figure disc, forwards knob to another location, is staggered in the position of stop breach and stop, and lock promptly is lockable.This coded lock relies on listens sound and feel to check the number, and does not have letter thereby good confidentiality on the knob.As long as the different parts with the insertion of the projection on knob figure disc excircle can change code number, regulate also very convenient.

Accompanying drawing 1 is the schematic diagram of coded lock for this reason;

Accompanying drawing 2 is a kind of structure charts of knob;

Accompanying drawing 3 is three structure charts that figure disc is combined;

Accompanying drawing 4 is three structure charts that set of knobs lumps together;

Accompanying drawing 5 is button and the knob structure chart same side;

Accompanying drawing 6 is that packing ring cooperates figure with lock core.

As shown in Figure 1, figure disc (3) is enclosed within on the lock core (8), one stop breach (1) is arranged on the figure disc inner periphery, the upper end (2) of stop (13) is facing to the inner periphery of figure disc, when figure disc forwarded stop breach (1) facing to stop to, the upper end of stop (2) can insert in the stop breach, and the pulling force that overcomes spring (12) with external force upwards boosts stop, dead bolt (14) is released, and lock is promptly opened.On the figure disc excircle one circle projection (6) is composed of serial number above, is 12 among the figure, be numbered 0-11, with respect to the projection place on the excircle one circle breach (19) is arranged on the figure disc inner periphery, 12 breach are also arranged among the figure, wherein No. 4 breach overlaps with stop breach (1).Locating piece on the lock core (7) covers the projection on the figure disc, and No. 0 projection is covered among the figure.Knob (4) is enclosed within outside the figure disc (3), projection on the knob inner edge (5) is stuck between two projections on the figure disc excircle, be that the pellet shot from a slingshot (9) in the lock core is pressed on the breach (11) of circle in the figure disc by stage clip (10) between No. 1 and No. 2 projections among the figure.

As shown in Figure 2, the projection on the knob inner edge (5) can be the end (16) of a jump ring (15), and jump ring tightly is stuck in the knob, and its end (16) are inwardly curved, promptly just in time can be stuck between two projections of figure disc excircle.

This coded lock can be superimposed together the multi-disc figure disc shown in Fig. 3 and 4, and described knob can be nested in mutually together by a plurality of knobs, and figure disc is many more, and number is long more, and confidentiality is just good more.Be three figure discs (3) among Fig. 3, separate with packing ring (17) between the figure disc that three figure discs are regulated separately separately.The knob that matches with this structure as shown in Figure 4, it is formed by three mutual intussusceptions of knob, each knob is independent rotation separately, each knob is by its jump ring (15) control figure disc separately.(13) are stop among Fig. 3, it is handled by button (18), when the number of figure disc is dialled, when the stop breach on three figure discs is aimed at the upper end (2) of stop (13) simultaneously, stop between button (18) is pressed, steel ball in the button (19) slides along the inclined-plane on the stop (13), and stop is upwards pushed away, and dead bolt promptly is released.Structure shown in the figure be figure disc and knob and button in the opposite direction, be suitable for making bicycle lock.

Structure button as shown in Figure 5 (18) and figure disc (3) then are suitable for use on the equipment such as strongbox, door in same direction.

As shown in Figure 6, the locating piece (7) on a projection (20) the replacement lock core can be arranged on the packing ring (17), at this moment, lock core and packing ring are by projection--and groove structure (21) interconnects.

Claims

1, a kind of coded lock, comprise dead bolt (14), stop (13), figure disc (3), lock core (8) and knob (4), figure disc is enclosed within on the lock core, one stop breach (1) is arranged on the inner periphery of figure disc, the upper end of stop (2) is facing to the inner periphery of figure disc, dead bolt (14) is pressed to by a spring (12) in its lower end, it is characterized in that, one circle projection (6) is arranged on the excircle of described figure disc, be composed of serial number on the projection, with respect to the projection place on the excircle one circle breach (11) is arranged on the inner periphery of figure disc, one pellet shot from a slingshot (9) is arranged in the lock core, be pressed in by a stage clip (10) on the breach (11) of figure disc inner periphery, a positioning block (7) is arranged on the lock core, this locating piece covers the projection on the figure disc excircle, knob (4) is enclosed within outside the figure disc (3), and the serial number on the figure disc covered, a projection (5) is arranged on the knob inner edge, this projection is stuck between two projections on the figure disc excircle.

2, coded lock as claimed in claim 1 is characterized in that the projection (5) on described knob (4) inner edge is the end (16) of a jump ring (15).

3, coded lock as claimed in claim 2 is characterized in that described figure disc is that multi-disc is superimposed together, and described knob is that a plurality of knobs are nested in together mutually.