CN2240567Y

CN2240567Y - Permulation lock

Info

Publication number: CN2240567Y
Application number: CN 95218843
Authority: CN
Inventors: 董斐然
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-08-01
Filing date: 1995-08-01
Publication date: 1996-11-20
Anticipated expiration: 2005-08-01

Abstract

The utility model provides a number checking permutation lock with strong anti-pulling and anti-prying performance. The main technique of utility model is characterized in that the permutation lock comprises a lock body which is provided with a group of horizontal blind holes and two vertical blind holes, wherein, each horizontal blind hole is respectively inserted with a lock tongue spring and a lock tongue, and the two vertical blind holes are provided with lock bolts which are positioned; both sides of the long end of the lock bolts are provided with a group of grooves, and the cross section surface of each groove is matched with the surface of each lock tongue. The side surface of one end of each lock tongue has a position which follows a vertical arc-shaped groove and the cross section of the vertical arc-shaped groove to be designed and positioned, and the position is matched with the standard cross section of the lock bolt. The lock tongues are positioned in the horizontal blind holes by pins, and can move in a certain degree horizontally. One side of a key is provided with a group of convex poles which are matched with each lock tongue.

Description

A kind of permutation lock

The utility model relates to padlock, particularly a kind of permutation lock.

Existing padlock mostly is cylinder lock, and its steering assembly comprises lock core, pellet shot from a slingshot, marble spring.Lock core Xiao Zi etc., not only complex structure, and assembly technology is also very complicated.Only rely on the fastening of dead bolt and locking bolt end during the padlock snap close, the resistance to tension of therefore existing padlock is not strong, is pried open easily.Relatively require great effort and fracture easily when unblanking, make troubles to use with the flat key of cylinder lock coupling use.When guaranteeing that cylinder lock is opened flexibly, need avoid steering assembly to get rusty, also need to use copper spare, the cost of production of therefore existing cylinder lock is higher.

The purpose of this utility model is to provide a kind of simply constructed check mark to arrange padlock, and not only tension pick-proof ability is strong during snap close, and it is convenient and reliable to unblank.

Task of the present utility model is finished as follows.

A kind of permutation lock, comprise lock body with two vertical blind holes, be complementary with described two blind holes and be positioned at locking bolt in the blind hole, key, its characteristics are that the long end side surface of described locking bolt is provided with one group of groove, be provided with one group of level with the corresponding coupling of described groove in the described lock body to blind hole, described each level is embedded with latch bolt spring and dead bolt respectively in blind hole, described each dead bolt one end is respectively equipped with a horizontal groove, described each dead bolt other end side is respectively equipped with a vertical circular groove that is complementary with the locking bolt standard cross-section, locate according to the check mark arrangement design respectively the position of described circular groove on each dead bolt, the shape and the described groove of described each dead bolt one end and latch groove contact site mate mutually, described each dead bolt is positioned at level in blind hole by Xiao Ding respectively, and can translation in the width range of described horizontal groove, one side of described key is provided with one group of projection that is complementary to blind hole with level, the length of described each projection is determined according to the check mark arrangement position of vertical circular groove on each corresponding dead bolt respectively, the one group of projection that is described key one side all stretches into level when blind hole also promotes each dead bolt translation respectively, can make the vertical circular groove of each dead bolt one side be in same upright position, each dead bolt does not produce the perpendicular phase shift of locking bolt and stops.

The groove that it is circular arc or rectangle that the locking bolt side of the utility model permutation lock can be provided with one group of cross section.

Can be provided with the hexad level in the lock body of the utility model permutation lock to blind cylindrical hole, described level is to blind hole difference symmetric arrangement, and the quantity of described latch bolt spring, dead bolt, the long end of locking bolt grooves on two sides is corresponding to the quantity and the position of blind hole with one group of level respectively with the position.

The utility model check mark is arranged padlock and is compared with known technology, owing to used the cylinder lock steering assembly of one group of similar dead bolt alternative constructions complexity, therefore simple structure, be suitable for large-scale industrialization production especially, assembling and maintenance process also become very simple.When padlock of the present utility model is sealed, because locking bolt is by a plurality of bolt blocks, therefore tension pick-proof ability is strong especially, with six dead bolts is that its stretching resistance of example can be bigger more than three times than common cylinder lock, has good pick-proof performance, the example that is configured to six dead bolts, position difference according to the vertical circular groove of dead bolt one end side surface, can weave into six numbers, do different arrangements with six numbers and can produce 38880 combinations, and the combination that six projections of key one side also can go out 38880 correspondences according to six different length arrangement, therefore padlock of the present utility model has good secret and safe again.Owing to just the projection of key one side is incorporated into six levels in blind hole when unblanking, do not have go to action, it is convenient therefore to open, and does not also have fracture situation in lockhole of key, uses fool proof reliably.Padlock of the present utility model gets final product with ferrous material, and price has only 1/2nd of common padlock, so cost of production is lower.

Below with reference to the embodiment accompanying drawing structure of the present utility model is described in further detail.

Fig. 1 is the front view and the left view of locking bolt

Fig. 2 is the front view of dead bolt and the vertical view of six different coding dead bolts

Fig. 3 is the front view and the right view of key

Fig. 4 is front view and the vertical view of the utility model padlock when sealed

Fig. 5 is along the sectional view of 1-1 line among Fig. 4

Fig. 6 is along the sectional view of 2-2 line among Fig. 4

Fig. 7 is along the sectional view of 3-3 line among Fig. 4

Fig. 8 is close front view and a vertical view when key operated of the utility model padlock

Fig. 9 is along the sectional view of 4-4 line among Fig. 8

Figure 10 is along the sectional view of 5-5 line among Fig. 8

Figure 11 is along the sectional view of 6-6 line among Fig. 8

Consult Fig. 1, the standard cross-section of locking bolt 2 is circular, and its long end side surface is provided with one group of groove 4, the section configuration of described groove can be circular arc, rectangle, trapezoidal, triangle etc., circular arc preferably, the quantity of described groove can be 4-10, preferably 6 and be symmetric arrays.Consult Fig. 2, dead bolt 7 one ends are provided with horizontal groove 8, dead bolt 7 other end sides are provided with a vertical circular groove 9, and the circular arc in described circular groove cross section size is complementary with the sizes of locking bolt 2 standard cross-section circles, so that padlock allows locking bolt 2 pop up when opening.Described circular groove can need to set in the position of dead bolt one end with design, adopting six dead bolts with a padlock is example, the vertical circular groove of dead bolt 7 other end sides can be selected six different positions, this moment, six dead bolts were represented six different numbers respectively, for example: 1,2,3,4,5,6, if being carried out permutation and combination, the different digital dead bolts of six classes just can obtain 38880 (promptly 6 ⁶-6 ⁵) individual six figure places, that is to say and can make 38880 permutation locks that six figure place sign indicating numbers are arranged that therefore padlock of the present utility model has good secret and safe.Dead bolt 7 other ends and locking bolt 2 lateral grooves 4 contacted positions, its shape size is mated mutually with the shape size of groove 4, so that padlock when closed each dead bolt can stop that locking bolt 2 pops up, because the utility model padlock adopts a plurality of dead bolts to stop that from both sides locking bolt pops up when closed, very strong pick-proof performance is arranged, so have constructional safety.Consult Fig. 3, one side of key 3 is provided with one group of projection 11, the number of described projection is corresponding with the dead bolt number that padlock adopts, the length of projection also can need to determine by design, still adopting six dead bolts with padlock is example, six projections also can be represented six different numbers respectively by different length, for example: 1,2,3,4,5,6, and corresponding with the dead bolt of the different numbers of six classes.The shape of projection can be cylinder, Rotary-table, prism, prismoid.Each projection 11 level in the positional alignment of key one side and Fig. 5 lock body 1 is corresponding to the position of blind hole 5, and size is mated mutually.Consult Fig. 4, Fig. 4 is the utility model padlock key, lock body 1 and locking bolt 2 front view and vertical view when closed together that do not close.Consult Fig. 5, Fig. 6, Fig. 7, structure situation when expression lock body 1 is with locking bolt 2 closures among the figure, be provided with six levels in the lock body 1 to blind hole 5, embed latch bolt spring 6 and dead bolt 7 in the described blind hole respectively, by Xiao Ding 10 dead bolt 7 is positioned at level in blind hole 5, described dead bolt can translation in the width range of horizontal groove 8 under the acting in conjunction of Xiao Ding 10, latch bolt spring 6 and key 3.Because the structure of Fig. 5-Fig. 7 is all represented the situation of not closing key 3, so the vertical circular groove 9 of each dead bolt 7 other end side is not on the same upright position, and each dead bolt 7 plays the effect of locking locking bolt 2.Locking bolt spring 12 among Fig. 5, Fig. 6 is in state by compression.Consult Fig. 8, Fig. 8 represents the utility model padlock front view and the vertical view of key 3, lock body 1 when being in opening with locking bolt 2 that close.Consult Fig. 9, Figure 10, Figure 11, the expression the utility model padlock key 3 that closes among the figure, the structural regime figure when lock body 1 is opened with locking bolt 2.One group of projection 11 of key 3 one sides is stretched in the lock body 1 corresponding one group of level in blind hole 5, because the pushing of 11 pairs of corresponding dead bolts 7 of each projection, each latch bolt spring 6 is subjected to compression in various degree, each dead bolt 7 is in the do translation in various degree respectively in blind hole 5 of each level, the vertical circular groove 9 of each dead bolt 7 one end side surface is also with corresponding dead bolt displacement, because the set positions with corresponding circle arc groove 9 is good in advance for the length of each projection 11 of key one side, when key that adopts identical six digit codes and padlock adapted, the vertical circular groove 9 of each dead bolt side just in time is in same upright position, each dead bolt does not produce the vertical motion of locking bolt 2 and stops, so locking bolt 2 is carried under the effect of locking bolt spring 12, the utility model padlock is opened.

The utility model is checked the number when arranging the padlock use, needs only the key 3 that closes and specially join in lock body 1-side, and locking bolt 2 promptly pops up.During locking, as long as press down locking bolt 2, extract key 3.

Claims

1, a kind of permutation lock, comprise lock body (1) with two vertical blind holes, be complementary with described vertical blind hole and be positioned at locking bolt (2) in the blind hole, key (3), it is characterized in that the long end side surface of described locking bolt is provided with one group of groove (4), be provided with one group of level with the corresponding coupling of groove (4) in the described lock body to blind hole (5), described each level is embedded with latch bolt spring (6) and dead bolt (7) respectively in blind hole, described each dead bolt one end is respectively equipped with a horizontal groove (8), described each dead bolt other end side is respectively equipped with a vertical circular groove (9) that is complementary with the locking bolt standard cross-section, locate according to the check mark arrangement design respectively the position of described circular groove on each dead bolt, the shape of described each dead bolt one end and latch groove (4) contact site and groove (4) be coupling mutually, described each dead bolt is positioned at level in blind hole (5) by Xiao Ding (10) respectively, and can translation in the width range of horizontal groove (8), one side of key (3) is provided with one group of projection (11) that is complementary to blind hole (5) with level, the length of described each projection is determined according to the check mark arrangement position of vertical circular groove (9) on each corresponding dead bolt respectively, the one group of projection (11) that is key (3) one sides all stretches into level when blind hole (5) also promotes each dead bolt (7) translation respectively, can make the vertical circular groove (9) of each dead bolt one side be in same upright position, each dead bolt (7) does not produce the vertical displacement of locking bolt (2) and stops.

2, permutation lock according to claim 1 is characterized in that the long end of locking bolt (2) the two sides groove (4) that to be provided with one group of cross section be circular arc or rectangle.

3, permutation lock according to claim 1 and 2, it is characterized in that being provided with in the described lock body hexad level to blind cylindrical hole (5), described level is to blind hole difference symmetric arrangement, and the quantity of latch bolt spring (6), dead bolt (7), locking bolt long end grooves on two sides (4) is corresponding to the quantity and the position of blind hole (5) with one group of level respectively with the position.