CN2361767Y

CN2361767Y - Anti-theft mechanical puzzle lock

Info

Publication number: CN2361767Y
Application number: CN 98242383
Authority: CN
Inventors: 游志成
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-10-16
Filing date: 1998-10-16
Publication date: 2000-02-02
Anticipated expiration: 2008-10-16

Abstract

The utility model relates to a mechanical cipher lock which is designed mainly for improving the anti-theft performance of a lock. The utility model has technical proposal that a cipher lock comprises a lock body, a lock nose and a lock core shaft, and a cipher wheel is sheathed on the lock core shaft. A concave part is arranged at a connection part of a concave circular table face of the cipher wheel and a through hole, and a spring and a top bead are arranged on the lock body. When the cipher wheel is rotated to probe a cipher number, collision can be generated between a short post pin on the lock core shaft and the concave part and between the top bead and a wheel edge, and therefore, the perception can generate mistake. The utility model is difficult to probe a real unlocking cipher of the lock by a stealer.

Description

Antitheft start tool coded lock

The utility model discloses a kind of mechanical code lock.

Mainly comprise two big classes now in the lockset that people use always, a class is with key operated, and another kind of is coded lock without key, and the latter only needs to aim at cipher wheel and just lock can be opened by opening password, and is comparatively convenient during use.Coded lock mainly comprises members such as lock body, lock nose, lock core shaft, cipher wheel, the wheel of cipher wheel is as being evenly equipped with 0～9 numeral on the external surface, its middle part through hole passes for lock core shaft, the through-hole wall at cipher wheel middle part is provided with a groove, there is the round table surface of depression at the cipher wheel middle part, described groove crosses along the thickness of round table surface, and hole or gap on the lock nose cooperate with the axle head of lock core shaft.When the groove on the through-hole wall on stub pin in the lock core shaft and the cipher wheel aligns, lock core shaft axially moves with respect to lock body and cipher wheel along it, and with the hole on the lock nose or gap cooperation or disengaging, when both are in mated condition, lock nose and lock body connect firmly, when both were in disengaged position, the lock nose can be left from the lock body was used to hold the patchhole extraction of lock nose.In the above-mentioned prior art, concerning the thief who does not know password, has utilizable defective, specifically be exactly that one group of group password goes examination, another kind is the people who understands the lock body structure, the state that the rotational password wheel time goes the perception cipher wheel to cooperate with stub pin in the lock core shaft, be whether perception occurs being blocked or states such as tight or pine, be in the numeral under the lock opening thereby grope each cipher wheel.

The purpose of this utility model is to provide a kind of antitheft start tool coded lock that is difficult to by the mated condition of groping cipher wheel and lock core shaft, to improve the antitheft unlatching performance of coded lock.

For achieving the above object, the technical solution adopted in the utility model is: antitheft start tool coded lock, it comprises lock body, the hole of inserting for the lock nose is arranged on the lock body, constitute the ring of a sealing between lock nose and the lock body, accommodate lock core shaft in the cavity in the lock body, one end of lock core shaft extends set opening position on the lock nose, some cipher wheel are enclosed within the lock core shaft in proper order, its most of wheel body is sat and is crouched in lock body, cipher wheel is provided with the stub pin that is connected in recessed round table surface and the lock core shaft near lock nose one side and cooperates, and the hole wall that confession lock core shaft wears on the cipher wheel is provided with groove, and this groove is communicated with recessed round table surface with the another side of cipher wheel, groove is mobile from wherein passing through for above-mentioned stub pin, lock body is provided with stirs member, and it links to each other with lock core shaft, and its special feature is that the utility model adopts a kind of in the following structure at least, one, the recessed round table surface of cipher wheel and the junction of through hole are provided with some recesses, and its cross sectional shape and above-mentioned groove are similar, and are distributed in around it; Its two, lock body is provided with spring, there is the decorative pearl on top of an official cap termination of spring, the decorative pearl on top of an official cap is low to be leaned against on the outer circumference surface of cipher wheel.

In the technique scheme, be resisted against on the cipher wheel by the mode that spring adds the decorative pearl on top of an official cap is set no matter be, still in the recessed round table surface of cipher wheel and the junction of through hole some recesses are set, these recess cross sectional shapes are similar to groove, but it is more shallow and non-through, after adopting such scheme, just can make runin lock person when groping password, will produce wrong judgement about the sensation of aiming at or misplace, thereby be difficult to the password groping really to unblank, the utility model is not only simple in structure, has importantly guaranteed the safe antitheft performance of lock really.

Description of drawings:

Fig. 1 is the 1st a kind of structural representation of the present utility model;

Fig. 2 is the A-A sectional view among Fig. 1;

Fig. 3 is the B-B sectional view among Fig. 1;

Fig. 4 is the partial structurtes schematic diagram of lock body;

Fig. 5 is the left view of Fig. 4;

Fig. 6 is the right view of Fig. 4;

Fig. 7 is the 2nd a kind of structural representation of the present utility model.

The utility model is described in further detail below in conjunction with drawings and Examples.

Embodiment

Referring to Fig. 1, two of lock body 10 is provided with buries piece 11 and sprue 12, and setting is buried piece 11, buried piece 12 is for satisfying the requirement of processing technology.Lock body 10 is provided with the hole of inserting for lock nose 30, constitutes the ring of a sealing between lock nose 30 and the lock body 10, so that article are pinned.Accommodate lock core shaft 20 in the cavity in the lock body 10, an end of lock core shaft 20 extends the opening position of lock nose 30, thereby lock nose 30 can't optionally be separated with lock body 10.Cipher wheel 40 is triplets, and they are arranged in proper order and be set in the lock core shaft 20, and its most of wheel body is sat and crouched lock body 10 in the set cavity, and its fraction wheel body is appearing, and can stir cipher wheel 40 around lock core shaft's 20 rotations for hand like this.Simultaneously referring to Fig. 2,4,5,6, cipher wheel 40 is provided with the short column that is connected in recessed round table surface 43 and the lock core shaft 20 near lock nose 30 1 sides and locks 21 and cooperate, through hole 41 walls that wear for lock core shaft 20 on the cipher wheel 40 are provided with the groove of arranging vertically 42, groove 42 is communicated with between the side at round table surface 43 places and the opposite side, described stub pin 21 can therefrom be passed, lock body 10 is provided with to be stirred member and links to each other with lock core shaft 20, recessed round table surface 43 on the cipher wheel 40 is provided with some recesses 44 with through hole 41 junctions, and its cross sectional shape is similar to above-mentioned groove 42.As shown in Figure 4, the two ends of groove 42 are provided with chamfering, chamfering is set like this can enter stub pin 21 in the groove 42 easily, and be difficult for perceiving with feel, the another side relative with recessed round table surface 43 and the junction of through hole 41 are provided with some recesses 44,45 on cipher wheel 40, by above-mentioned recess 44,45 is set, when groping not knowing password, stub pin 21 is collided with above-mentioned recess 44,45 and is made feel or sound obviously unusual, makes the person of groping produce wrong judgement.On this basis, add the spring 50 and the decorative pearl on top of an official cap 51 again, they are positioned at lock body 10 and are the duct of its setting, when the decorative pearl on top of an official cap 51 is resisted against on the cipher wheel 40, owing to the decorative pearl on top of an official cap 51 makes feel obvious to bumping cipher wheel 40, the difficulty of groping the password coding is strengthened once more.

In Fig. 1,4, as seen, have spring 13 to be enclosed within the lock core shaft 20 in the lock body 10, when password on time, under spring 13 effect, lock core shaft 20 breaks away from lock nose 30, during locking, is used for turn swing handle 70, makes lock core shaft 20 insert hole or the opening position of being offered on the lock noses 30.

As shown in Figure 1, two lock core shafts 20 are set, they are stretched so that rotating shaft 60 centers are flat to the left and right sides, constitute two groups of cipher wheel, make theftproof performance more reliable.Stir member and comprise that one is fixed on the lock body 10 and perpendicular to lock core shaft 20, rotating shaft 60 is rotatable with respect to lock body 10, rotating shaft 60 lower ends are provided with gear 61, and cooperate with tooth bar 22 that an end of lock core shaft 20 is provided with, the upper end of rotating shaft 60 extends lock body 10 outsides and links to each other with swing handle 70, sheathed three cipher wheel 40 in each lock core shaft 20, U-shaped constitutes lock nose 30 for the axle of steel curves.

Another structure then as shown in Figure 7, a lock core shaft 20 only is set in the lock body 10, different with such scheme is that lock nose 30 is middle thin two pluckings step-like axles, be fixed with a short column 80 on the lock body 10, the upper end of short column 80 exposes to lock body 10, can constitute by chain link between lock nose 30 and the short column 80 and flexibly connect, lock that also available finer wire is connected between nose 30 and the short column 80.

Flesh and blood of the present utility model is the improvement that cipher wheel 40 is done, and adds the spring 50 and the decorative pearl on top of an official cap 51 in lock body 10, and both may be used alone, can also be used in combination, to reach best anti-theft effect.

Claims

1, a kind of antitheft start tool coded lock, it comprises lock body (10), through hole (41) is inserted in having for lock nose (30) on the lock body (10), constitute the ring of a sealing between lock nose (30) and the lock body (10), accommodate lock core shaft (20) in the cavity of lock body (10), one end of lock core shaft (20) extends the opening position of lock nose (30), some cipher wheel (40) order is set in the lock core shaft (20), its most of wheel body is sat and is crouched in lock body (10), cipher wheel (40) is provided with the stub pin (21) that is connected in recessed round table surface (43) and the lock core shaft (20) near lock nose (30) one sides and cooperates, cipher wheel (40) goes up through hole (41) wall that wears for lock core shaft (20) and is provided with the groove of arranging vertically (42), groove (42) is communicated with between recessed round table surface (43) place one side and the opposite side, described stub pin (21) can therefrom be passed, lock body (10) is provided with to be stirred member and links to each other with lock core shaft (20), it is characterized in that: the utility model is selected a kind of in the following structure at least: the first: the recessed round table surface (43) on the cipher wheel (40) is provided with some recesses (44) with through hole (41) junction, and its cross sectional shape is similar to above-mentioned groove (42); It two is: in the duct in the lock body (10) spring (50) is set, spring (50) one ends have the decorative pearl on top of an official cap (51), and the decorative pearl on top of an official cap (51) is resisted against on the outer circumference surface of cipher wheel (40).

2, coded lock according to claim 1, it is characterized in that: the two ends of described groove (42) are provided with chamfering, the another side that cipher wheel (40) fovea superior is relative with round table surface (43) and the junction of through hole (41) are provided with some recesses (45), be provided with spring (50) in the duct in the lock body (10), one end of spring (50) has the decorative pearl on top of an official cap (51), and the decorative pearl on top of an official cap (51) is resisted against on the periphery of cipher wheel (40); There is spring (13) to be enclosed within the lock core shaft (20) in the lock body (10).

3, coded lock according to claim 1 and 2, it is characterized in that: stir member and comprise that one is fixed on that lock body (10) is gone up and perpendicular to the rotating rotating shaft (60) of lock core shaft (20), rotating shaft (60) lower end is provided with gear (61), tooth bar (22) engagement that one end of it and lock core shaft (20) is provided with, the upper end of rotating shaft (60) extends lock body (10) outside and links to each other with swing handle (70), to be that both sides are flat to the left and right at the center with rotating shaft (60) stretch in two lock core shafts (20), the symmetrical configuration of rotating shaft (60) both sides, sheathed three cipher wheel (40) go up in each lock core shaft (20), the U-shaped that lock nose (30) curves for the steel axle.

4, want 1 or 2 described coded locks according to right, it is characterized in that: stir member and comprise that one is fixed on the rotating rotating shaft (60) of the last and vertical lock core shaft (20) of lock body (10), rotating shaft (60) lower end is provided with gear (61), tooth bar (22) engagement that it and lock core shaft's (20) one ends are provided with, the upper end of rotating shaft (60) extends lock body (10) outside and links to each other with swing handle (70), be fixed with a short column (80) on the lock body (10), constitute by chain link between lock nose (30) and the short column (80) and flexibly connect.