CN2142874Y

CN2142874Y - Bicycle puzzle lock with changeable cipher

Info

Publication number: CN2142874Y
Application number: CN 92217361
Authority: CN
Inventors: 夏日
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-07-13
Filing date: 1992-07-13
Publication date: 1993-09-29
Anticipated expiration: 2002-07-13

Abstract

The utility model relates to a bicycle puzzle lock with changeable cipher which combined the traditional bicycle lock and the puzzle lock together without a key. The utility model is characterized in that a movable bolt is arranged in the puzzle lock body, the movable bolt nipper which cooperates with the lock tong can decide the opened and closed positions. Besides the lock body is also provided with a bayonet pin which can control the top and bottom positions of pin by the bayonet pin thimble, so that the secret code slice related with the central-axis can lock or quit from the lock body and freely change the code.

Description

Bicycle puzzle lock with changeable cipher

A kind of variable cipher bicycle lock, the utility model belongs to the coded lock field.

Coded lock be the lock a kind of, be used for padlock more, but recently also the handlebar coded lock be used for bicycle.Done an advantage like this, because common very easy the losing of key of bicycle, and when going out, had very burden as after finding to lose, change coded lock into after, just can avoid the defective of key loss.Though the password bicycle lock of Shi Yonging has solved the shortcoming of not being afraid of key loss in the market, but, in lending the process of bicycle, just may give away secrets, produce another kind of unsafe factor owing to can not arbitrarily change password.

The utility model proposes a kind of bicycle lock that can change password arbitrarily at above-mentioned shortcoming.Therefore the key of head it off is to make the cipher chips axis can withdraw from axis hole very easily, has set up an axis bayonet lock and reach and make axis withdraw from axis hole arbitrarily in the design, changes the scheme of password.

Details are as follows in conjunction with the accompanying drawings for the utility model, wherein:

Schematic diagram when Fig. 1 closes for the variable cipher bicycle lock;

Schematic diagram when Fig. 2 opens for the variable cipher bicycle lock;

Fig. 3 is the cipher chips schematic diagram;

Fig. 4 is a cipher chips axis schematic diagram;

Fig. 5 is the bayonet lock schematic diagram;

Fig. 6 is movable bolt schematic diagram;

Fig. 7 is a bayonet lock thimble schematic diagram.

Fig. 1 and Fig. 2 represent the total structure figure of password bicycle lock, (1) is lock body among the figure, lock body (1) bottom is the lock housing (16) of standard bicycle, the lock hanging (15) that slidably has handle (152) is housed in the lock housing (16), the end of this lock hanging (15) has a breach (151), the point of the movable bolt (6) in this breach and the lock body is chewed (601) and is complementary, and makes the password bicycle lock that the effect of closing and opening be arranged.

There are bullet groove (17) and password film trap (20) to communicate in the lock body (1), but can not enter password film trap (20), and can only hold out against cipher chips (2) by the pellet shot from a slingshot (8) that spring (9) withstands.The periphery of cipher chips shown in Figure 3 has 9 marginal tooths (201) and a positioning tooth (202), and there is the axis hole (203) with cipher chips axis (3) coupling at the heart place, garden of cipher chips (2).The profile of axis hole (203) is one to have the hole, garden of breach, and the relative position of this breach and positioning tooth (202) determines the code number (see figure 3) of each sheet.Fig. 1, Fig. 2 and axis (3) shown in Figure 4 be installed in the central axis hole (5) with the be complementary part of open and close of decision lock of cipher chips.Axis (3) has an inclined-plane Jian Zui (301), there is double wedge (302) in the stage casing, another section is handgrip (303), one back-moving spring (4) is arranged between handgrip (303) and lock body shell, the axis stage casing has the cross section that double wedge (302) is located, just in time the shape with axis hole (203) is identical, can determine the code number that coded lock is opened thus.

One end of lock body (1) is equipped with a movable bolt (6), movable bolt (6) lower end is the movable bolt excess extension (601) that mates with lock hanging breach (151), the upper end is a hole (602) that is complementary with axis inclined-plane Jian Zui (301), and the diameter of movable bolt upper end is slightly less than the diameter of key, so that back-moving spring (7) is installed thereon.Movable bolt (6) is installed in the movable keyhole (14) of lock body (1), this hole upper end closed, and open the lower end, is convenient to movable bolt whereabouts and is complementary with lock hanging breach (601).The other end of lock body is equipped with a bayonet lock (10), this bayonet lock is to be installed in the pin hole (13) (to see Fig. 1 and Fig. 6), and bayonet lock is a cylindrical peg, and its effect is the double wedge that withstands axis (3), locking axis (3) makes it can not withdraw from central axis hole (5) arbitrarily.There is an inclined hole (10) upper end of kayser (10), this inclined hole and bayonet lock thimble (11) coupling of inserting through bayonet lock centre hole (19) by lock body (1) outside, and back-moving spring (12) is housed bottom bayonet lock.

The operating principle of variable cipher bicycle lock and use are as depicted in figs. 1 and 2, Fig. 1 represents the working condition of bicycle locking, each cipher chips this moment (2) is in the position of opening, axis (3) withdraws to the outside under the effect of back-moving spring (4), but because the effect of bayonet lock (10) can not be withdrawed from by holoaxial, axis inclined-plane Jian Zui this moment (301) withdraws from movable keyhole (602), movable bolt (6) falls to lock hanging breach (151), lock i.e. locking, stir cipher chips (2) then, make its dislocation, the stranger promptly can not open.Be painted with bayonet lock thimble (11) among Fig. 1, but in fact the bayonet lock thimble only is used to withdraw from axis, usefulness during Change Password, the bayonet lock thimble that Fig. 1 draws is in order more clearly to represent its effect with Fig. 2 contrast.

The situation that Fig. 2 represents to lock the unlatching situation and represents variable password.The position of Fig. 2 represents that cipher chips arrives the position of opening again, use hand propelled handgrip (303) this moment, point is chewed (301) and is entered movable keyhole (602), because the effect on inclined-plane, movable bolt (6) rises, excess extension (601) breaks away from (151), and lock hanging (15) is under the pulling force of spring (18), and the place is returned in the lock housing (16), bicycle lock is in the enable possition, this moment, then thimble (11) entered bayonet lock (101) as bayonet lock thimble (11) is pushed up inwards, because pin-and-hole (101) is an inclined hole, bayonet lock (10) is forced to descend, at this moment can withdraw from whole axis (3), insert once more behind the Change Password sheet, transfer to bayonet lock nail pin (11) then, bayonet lock (10) rises under action of reset spring, axis can not all be withdrawed from, and under spring (4) effect, be in the normal position, be i.e. excess extension (301) disengaging activity keyhole (602).At this moment, pull lock hanging spanner (152) with hand, make lock hanging (15) stretch out lock housing (16), until the position of lock hanging breach (151) arrival activity bolt excess extension (601), after excess extension (601) dropped to breach (151), lock i.e. locking.

The design's variable cipher bicycle lock simplicity of design, rational in infrastructure, both can exempt and lose the trouble that key produces, can change password at any time again, also exempted the future trouble of promptly giving away secrets after bicycle is lent.The design's principle also can be directly used in the manufacturing padlock, various different lock classes such as door bolt.

Claims

1, a kind of variable cipher bicycle lock of forming by lock housing, lock hanging, lock body, spring, pellet shot from a slingshot and cipher chips etc., of the present utility model being characterized as:

On a, the lock body (1) a movable bolt (6) is arranged, the excess extension (601) of this activity bolt (6) is complementary with the opened and closed positions of control lock hanging with the breach (151) of lock hanging (15);

B, lock body (1) has bullet groove (17), spring (9) and pellet shot from a slingshot (8) are housed in the bullet groove, pellet shot from a slingshot (8) withstands cipher chips (2), the periphery of cipher chips (2) has 9 marginal tooths (201), with a positioning tooth (202), there is the axis hole (203) with cipher chips axis (3) coupling at the heart place, garden of cipher chips (2), one end of axis (3) is inclined-plane Jian Zui (301), there is double wedge (302) in the axis stage casing, the other end is handgrip (303), spring (4) is housed before the handgrip, axis (3) is installed on axis hole (5), the hole (602) that axis inclined-plane Jian Zui (301) can insertion activity bolt (6), and movable bolt (6) is installed in the movable keyhole (4) of lock body, and spring (7) is housed on movable bolt (6), the bayonet lock (10) that makes axis (3) can not withdraw from axis hole (5) also is housed on the lock body, and bayonet lock is installed in the pin-and-hole (13), and in the pin-and-hole bottom spring (12) is housed, there is an inclined hole (101) the bayonet lock upper end, and the bayonet lock thimble can insert the upper-lower position of bayonet lock with control bayonet lock (10) from aperture (9).