CN2307078Y - Puzzle lock - Google Patents

Abstract

The utility model relates to a cipher lock which is composed of a pushing lock, a lock tongue, a box cover of the lock tongue, a box bottom of the lock tongue, a component for controlling the retraction of the pushing block, a cipher shaft, a turn knob, an inner sleeve barrel, a middle sleeve barrel, an outer sleeve barrel, a positioning disc of the sleeve barrels, an outer shell and a cipher dial, wherein the outer sleeve barrel is fixed by a tightly abutting screw nail, an inner chamber of the middle sleeve barrel is provided with a shifting block, and the outer end and the inner end of the inner sleeve barrel are provided with shifting blocks. The outer sleeve barrel, the middle sleeve barrel and the inner sleeve barrel are provided with a notch respectively. A cipher needle is arranged on the cipher shaft, and a slot hole of the turn knob is sheathed on a convex circular handle of the cipher shaft. The application range of the utility model is wide, and the utility model can be suitable for various locks. The utility model has the advantages of small volume, convenient use and high safety performance. The cipher lock of the utility model can not be deciphered by unlocking times and technologic defects.

Description

Coded lock

The utility model relates to a kind of coded lock, mainly as door lock, drawer-lock, Suitcase lock, bicycle lock, vehicles electric switch town, steel wire chain lock and common padlock etc.

Existing strongbox coded lock except that knob, also must be equipped with another drive unit.Its weak point is: volume is big; Complex structure.The coded lock that is used for Suitcase lock, padlock and chain lock is that the figure disc by three or four independent rotation constitutes.Its weak point is: can calculation times crack, perhaps crack according to the insurmountable defective of its technology, so safety is not strong, be difficult to popularize in an all-round way and use.

The purpose of this utility model is to overcome above-mentioned weak point of the prior art and provides a kind of safety performance good, the practical wide and coded lock that do not exist number of times and defective workmanship to crack.

The purpose of this utility model can reach by following measure: the utility model is by pushing block, dead bolt, the dead bolt lid, at the bottom of the dead bolt box, control pushing block retraction member, coded shaft, knob, inner sleeve, middle sleeve, outer sleeve, the sleeve positioning disk, shell and password scale dish are formed, the inner top of shell is affixed on the sleeve positioning disk, outer sleeve is arranged in the shell, outer sleeve holds out against screw, the middle sleeve inner chamber has shifting block, the outer and inner end of inner sleeve has shifting block, outward, in, inner sleeve respectively has a breach, the password pin is arranged on the coded shaft, pack into and be positioned at the pushing block blind hole of sleeve positioning disk centre bore in coded shaft the inner, the slotted eye of knob is set in outside the convexity handle of coded shaft.

The drawing of accompanying drawing is described as follows:

Fig. 1 is analyse and observe total figure, the B-B sectional structure of coded shaft outer end presentation graphs 2 of the present utility model;

Fig. 2 is the A-A profile of Fig. 1, expression is outer, in, the breach coincidence status of inner sleeve;

Fig. 3 is the sectional view of the utility model sleeve positioning disk;

Fig. 4 is the vertical view of Fig. 3.

The utility model is described in further detail below in conjunction with embodiment and accompanying drawing; Referring to Fig. 1 and Fig. 2.The inner top of shell 1 is affixed on the sleeve positioning disk 2, and shell inner cavity has outer sleeve 3, and there is annular cavity 4 outer sleeve the inner, has to hold out against screw 5 and be screwed into the corresponding screw of sleeve positioning disk and hold out against in annular cavity 4, so that outer sleeve is fixedly connected on the sleeve positioning disk.There is a breach 6 the outer sleeve outer end, the usefulness that moves back and forth along coded shaft 8 center lines work for password pin 7 when opening lock.Middle sleeve 9 is arranged in the outer sleeve, and the middle sleeve inner chamber has shifting block 10, and there are a breach 29 (see figure 2)s the middle sleeve outer end, acts on identically with above-mentioned outer sleeve, also is to make the usefulness that moves back and forth for password pin 7 when opening lock.Inner sleeve 12 is arranged in the middle sleeve, be loaded in the sleeve positioning disk cannelure 13 and see Fig. 3, there is shifting block 14 at outside the inner sleeve and middle sleeve shifting block 10 corresponding positions, follow the usefulness of rotation for stirring shifting block 10 to drive middle sleeve when inner sleeve rotates.Shifting block 15 is arranged on the inner sleeve outer end, and when rotating for coded shaft, the password pin is stirred the and then usefulness of rotation of inner sleeve.There are a breach 30 (see figure 2)s the inner sleeve outer end, effect and above-mentioned outer, middle sleeve is identical, also is the usefulness that moves back and forth for password pin work when opening lock.Coded shaft 8 is arranged in the inner sleeve, in the medium pore 11 of sleeve positioning disk (seeing Fig. 3 and Fig. 4) pushing block 16 is arranged, blind hole is arranged in the pushing block, the inner of coded shaft is loaded in the blind hole of pushing block.Pushing block is connected by wedge 17 with coded shaft, when opening lock, and push-turn key, promote coded shaft and do axial moving inward, the inclined-plane 18 of pushing block the inner drives the inclined-plane on the dead bolts 19, makes dead bolt 19 retreat (be on Fig. 1 shown in move down), and coded lock is opened.At the bottom of pushing block 16, dead bolt 19, dead bolt lid 20, the dead bolt box 21 and the structure of control pushing block retraction member 22 same as the prior art.The structure of coded shaft is divided into two sections, and outer section is a convexity handle 23, knob 24 inner grooved holes 25, and the slotted eye 25 of knob the inner is set on the handle 23, drives the outer section rotation of coded shaft during knob.Knob also can move back and forth along center line, and spring 26 and 27 are arranged, treat that knob moves inward after, the screen resilience of spring can make knob outwards move to reset automatically.Like this, when the promotion of being damaged property of coded shaft, knob slotted eye 25 moves axially along password footstalk 23, and the password pin does not stress, and can protect password pin and each sleeve not to be damaged.Knob is set with password scale dish 28 outward, is carved with password figure above.

During use, outer sleeve is fixed.The knob clockwise direction is rotated three circles, and be rotated further knob and decide reading (being password) to giving, counterclockwise revolve then and turn around, be rotated further to give and decide reading, clockwise direction turns to give and decides reading again.Press turn-knob at last, it is dead bolt retraction dead bolt box that lock is opened.Lock is opened the back pushing block and is not return because of the control of controlled retraction member 22, and knob outwards withdraws from, and can do any rotation, the scale when advancing with entanglement.When needing locking, turning knob is decided push-turn key behind the password value to giving, and the control pushing block withdrawal operating key of pushing block front end is thrown off automatically, and dead bolt stretches out under the elastic force effect of spring 31 and locks, and meanwhile, pushing block outwards withdraws from together with coded shaft.In use for some time, pull down and unclamp and hold out against screw 5, hold out against outer sleeve again behind the rotating jacket tube certain angle, to revise password.

The structure of sleeve positioning disk is seen Fig. 3 and Fig. 4, has four for the fan-shaped pylone 32 of observing usefulness, and its effect is: can observe the mark that respectively overlaps tube bottom and each sleeve breach opposite position during for adjustment password (being the rotating jacket tube).

The utility model contrast prior art has following advantage: practical wide, all types of locks all can be used; It is small and exquisite, Easy to use; There is not cracking of number of times and defective workmanship in high safety.

Claims (4)

1, a kind of coded lock, comprise at the bottom of pushing block, dead bolt, dead bolt lid, the dead bolt box and control pushing block retraction member, it is characterized in that, also comprise coded shaft, knob, inner sleeve, middle sleeve, outer sleeve, sleeve positioning disk, shell and password scale dish, outer sleeve holds out against screw, and the middle sleeve inner chamber has shifting block, the outer and inner end of inner sleeve has shifting block, outward, in, inner sleeve respectively has a breach, and the password pin is arranged on the coded shaft, the slotted eye of knob is set in outside the convexity handle of coded shaft.

2, coded lock according to claim 1 is characterized in that, knob has spring (26) and (27) outward.

3, coded lock according to claim 1 is characterized in that, outer, in, the inner sleeve inner face is underlined.

4, coded lock according to claim 1 is characterized in that, the sleeve positioning disk has to observe uses through hole.

Images