CN2116739U - Combination padlock - Google Patents

Abstract

The utility model discloses a zero stop bit anti-unlock by mistake changeable cipher padlock. A digit wheel and an interval wheel are a pair of gears which are engaged inside and outside. The outer side of the digit wheel is provided with a plurality of 'V-shaped' slots and a right angle slot along the radial direction. The end surface of the shaft of the interval wheel is provided with a plurality of 'V-shaped' concave and convex teeth. Because of the special structure of the utility model, the zero stop bit anti-unlock by mistake changeable cipher padlock is multifunctional. The utility model has the advantages of high reliability and convenient operation.

Description

Combination padlock

The utility model relates to a kind of security password padlock.

Existing cipher hang lock structure is all comparatively complicated, and function is few, easily by some people Mao Kai that does not know password, can't find out proper password in the dark in addition, uses inconvenient.

The utility model proposes a kind of zero stopped position rushly opening preventing variable cipher padlock at above-mentioned deficiency, and this pad lock structure is simple, compact, and function is many, good reliability, and can accurately find out proper password in the dark, easy to use.

The utility model is made up of housing, digit wheel, a wheel, latch hook, reed and spring, it is characterized in that a digit wheel and a wheel are a pair of inside and outside meshed gears, the outer radial of digit wheel is made up of some " V " type groove position and a trough with straight angle position, and a wheel axle end surface has some " V " type convex and concave teeth respectively.

Now in conjunction with the accompanying drawings the utility model is further described:

Fig. 1 is the utility model schematic diagram;

Fig. 2 is that the A-A of Fig. 1 is to view;

Fig. 3 is that the B-B of Fig. 1 is to view;

Fig. 4 is a digit wheel of the present utility model and a wheel schematic diagram;

As shown in Figure 1-Figure 3, the utility model by take turns 4 between 3, one groups on housing 1, housing 2, set of number wheel, latch hook 5, reed 6 and spring 7 form.As shown in Figure 4, a digit wheel 3 and a wheel 4 are a pair of inside and outside meshed gears, and the outside of a wheel 4 is garden posts that contain some double wedges 8, and digit wheel 3 is gear and corresponding some numbers that some indent teeth 9 are contained in an inboard.When one group be inserted in digit wheel 3 between wheel 4 when being assembled in the housing 1,2, an end of spring 7 presses housing 1,2 bottoms, wheel 4 axle heads between the other end presses; Have one group of boss on the latch hook 5, boss is topmost done spacing moving in the groove that housing is opened; The one group of boss in lower end is inserted in respectively in the wheels in institute's circular hole of opening and the groove.

When 4 groups on wheel rotated to unlocking cipher between 3 groups of digit wheels drive, hole and groove in 4 groups on the wheel can pass through latch hook 5 and boss thereof, lock this moment and can open.Otherwise latch hook pushed away and dials random unlocking cipher for 5 times, this time take turns wall on 4 mesopores stop latch hook 5 boss 10 pass through locking is closed.

Because a digit wheel 3 and a wheel 4 are a pair of inside and outside meshed gears, when password being gone to when unblanking numeral, latch hook 5 is rotated to position, a right angle, and apply a downward pressure to latch hook 5, this moment the boss on the latch hook 5 drive between wheel 4 axially move down along digit wheel 3, until its tooth and digit wheel 3 are broken away from fully, the new numeral of another group of digit wheel is set and sheds the pressure of granting on the latch hook 5, promptly produce the cryptovariable function.

Be made up of some " V " type groove position 11 and a trough with straight angle position 10 because the outer radial of the digit wheel 3 of padlock is one, form ratchet, pawl structures between it and the reed 6, reed 6 is fixed on the housing.When digit wheel 3 when a counter clockwise direction turns to " 0 " digit order number because the existence of trough with straight angle position 10, promptly ratchet, ratchet work, and play the zero stopped position effect so can not continue to rotate in the counterclockwise direction.When using in the dark, numeral can be allocated to zero stopped position, transfer to proper password with sensation again, can unblank.

Since between wheel 4 axial end have some " V " type convex and concave teeth 12, when digit wheel 3 rotates, itself and a frictional force of taking turns between 4 increase, this moment digit wheel 3 with take turns 4 and relatively rotate the sensation of upper and lower play is vertically arranged in the process, can prevent some do not know the password people with feel to unblank may, play the effect of rushly opening preventing.

Claims (2)

1, a kind of zero stopped position rushly opening preventing variable cipher padlock, by take turns 4 between 3, one groups on housing 1, housing 2, set of number wheel, latch hook 5, reed 6 and spring 7 form, it is characterized in that a digit wheel 3 and a wheel 4 are a pair of inside and outside meshed gears, between wheel 4 the outside be a garden post that contains some double wedges 8, digit wheel 3 is gears that some indent teeth 9 are contained in an inboard.

2, zero stopped position rushly opening preventing variable cipher padlock according to claim 1 is characterized in that digit wheel 3 outer radial are made up of some " V " type groove position 11 and a trough with straight angle position 10; Between the wheel 4 axial end have some convex and concave teeths 12.

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