CN2795377Y

CN2795377Y - Cipher lock

Info

Publication number: CN2795377Y
Application number: CN 200520042829
Authority: CN
Inventors: 徐家贵
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-06-23
Filing date: 2005-06-23
Publication date: 2006-07-12
Anticipated expiration: 2015-06-23

Abstract

The utility model discloses a cipher lock. One chip is arranged at the center of a plurality of digital rings and is provided with a convex key. One end of the chip is connected with one end of a lock casing through a chip spring, and the other end of the chip is connected with a hook-shaped lock tongue through a connecting screw. One end corresponding to the chip spring in the lock casing is provided with a plane cam, and the work surface of the plane cam contacts the chip. One end of a U-shaped piece near the lock tongue is provided with a lock tongue groove matched with the lock tongue. An inner ring is arranged in every digital ring and is provided with a key groove matched with the key of the chip. When the digital rings are rotated to a set cipher, key grooves of inner rings of the digital rings match the key of the chip, the key grooves and the key are at one straight line, the digital rings and the chip can move axially, the plane cam rotates to drive the chip to move axially, the hook-shaped lock tongue is driven to move and disconnect from the lock tongue groove of the U-shaped piece, and thus the lock is unlocked. The cipher lock has reliable work and control and can not be unlocked easily by other persons.

Description

A kind of coded lock

Technical field:

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

Background technology:

Existing coded lock is used for the door electronic password lock in strongbox, safety cabinet, portable cock case, family or hotel more.But these locks or simple, theftproof performance is poor, or complex structure, costs an arm and a leg, and inapplicable general case is used.

Summary of the invention:

The purpose of this utility model provides a kind of novel coded lock.

To achieve these goals, the technical solution of the utility model is: a kind of coded lock, comprise lock housing, U type spare, the lock housing two ends are respectively equipped with the hole that matches with U type spare, in lock housing, be provided with a plurality of number rings side by side, it is characterized in that being provided with a chip at the center of these a plurality of digital rings, have outstanding key on the chip, one end of chip is connected with an end of lock housing by the chip spring, the other end of chip is connected with switch shaft by attachment screw, switch shaft is provided with and colludes the shape dead bolt, an end relative with the chip spring in lock housing is provided with a plane cam, and the work plane of this plane cam contacts with chip, and the end near dead bolt on the U type spare is provided with the lock tongue slot that matches with dead bolt, all be provided with interior ring in each digital ring, in be equipped with the keyway that matches with key on the chip.Be provided with spring below the hole that matches with U type spare on the lock housing, then when locking, with spring compression, when lock left, springback automatically springed open U type spare.Between a plurality of digital rings, also be provided with stripper loop, can avoid when rotating one of them digital ring, influencing another digital ring.

Advantage of the present utility model is simple in structure, and reliable operation be difficult for being opened by other people, but Homes Using TV is 10 ⁶The side.

Description of drawings:

Fig. 1 is the schematic diagram of the utility model embodiment

Schematic diagram when Fig. 2 works for plane cam

The specific embodiment:

Below in conjunction with drawings and Examples the utility model is further described.

A kind of coded lock of the present utility model, comprise lock housing 1, U type spare 2, the lock housing two ends are respectively equipped with the hole that matches with U type spare, in lock housing 1, be provided with a plurality of number rings 8 side by side, it is characterized in that being provided with a chip 10 at the center of these a plurality of digital rings 8, have outstanding key on the chip, one end of chip is connected with an end of lock housing 1 by chip spring 27, the other end of chip is connected with switch shaft 6 by attachment screw 16, switch shaft 6 is provided with and colludes the shape dead bolt, an end relative with chip spring 27 in lock housing is provided with a plane cam 7, the work plane of this plane cam 7 contacts with chip, be provided with and collude the lock tongue slot that the shape dead bolt matches near an end of dead bolt on the U type spare 2, ring 23 in all being provided with in each digital ring 8, in be equipped with the keyway that matches with key on the chip.Below the hole that matches with U type spare on the lock housing, be provided with

spring

18,28, wherein near dead bolt spring on one side, also be provided with apical axis 17.Between a plurality of digital rings 8, also be provided with stripper loop 9.In the present embodiment, these a plurality of digital rings are 5.

When realizing, can on the cylindrical of interior ring 23, be provided with the salient angle of 90 degree, the internal diameter of digital ring 8 is provided with 10 the 90 degree grooves of dividing equally, a numeral on the corresponding digital ring of each groove, the salient angle of interior ring cylindrical matches with the groove of digital ring internal diameter, ring rotated in rotational digital loop just can drive, and can encode arbitrarily.

When rotational digital loop during to the password set, the keyway of ring and the key on the chip match in the digital ring, be positioned on the straight line, can move axially between ring and the chip in the digital ring, at this moment, the rotational plane cam, the work plane slope of plane cam just drives chip and moves axially, and colludes the shape dead bolt and moves thereby drive, and throws off from the lock tongue slot of U type spare, under the rebound effect of spring, lock has just been opened automatically.When number ring and password value are inconsistent, the keyway of ring and the key on the chip are not point-blank in the digital ring, this is can not move axially between interior ring of digital ring and the chip, therefore, the rotational plane cam can not moving chip, collude the lock tongue slot that the shape dead bolt is arranged in U type spare, lock just can not be opened.When lock cipher was locked, the Plane of rotation cam was replied the original place, depresses U type spare, colluded in the lock tongue slot that the shape dead bolt snaps in U type spare, just lock had been locked, and at this moment upset digital getting final product again.Between a plurality of digital rings, establish stripper loop and can avoid when rotating one of them digital ring, influencing another digital ring.

In addition, have at least a digital number of rings word to be convex, convex plane is preferably 1mm, and obvious sense of touch is arranged, and like this, even locate according to dark unglazed, also can judge the position that needed number should push, thereby can open lock.

In the accompanying drawings, numbering 3 is plastic bushing, and 4 is cover, and 5 is 4 grooves unit nut, 11 Be ring flange, 12 is alignment pin, and 13 is pad, and 14 is snap ring, and 15 is fairlead, 19 For pulling pin, 20 is brake pad, and 21 is spring, and 22 is sliding plate, and 24 is sleeve pipe, and 25 are Screw, 26 is lining.

Claims

1, a kind of coded lock, comprise lock housing, U type spare, the lock housing two ends are respectively equipped with the hole that matches with U type spare, in lock housing, be provided with a plurality of number rings side by side, it is characterized in that being provided with a chip at the center of these a plurality of digital rings, have outstanding key on the chip, one end of chip is connected with an end of lock housing by the chip spring, the other end of chip is connected with switch shaft by attachment screw, switch shaft is provided with and colludes the shape dead bolt, an end relative with the chip spring in lock housing is provided with a plane cam, the work plane of this plane cam contacts with chip, be provided with the lock tongue slot that matches with dead bolt near an end of dead bolt on the U type spare, all be provided with interior ring in each digital ring, in be equipped with the keyway that matches with key on the chip.

2, coded lock as claimed in claim 1 is characterized in that being provided with spring below the hole that matches with U type spare on the lock housing.

3, coded lock as claimed in claim 2 is characterized in that also being provided with stripper loop between a plurality of digital rings.

4, coded lock as claimed in claim 3 is characterized in that having at least a digital number of rings word to be convex.

5, coded lock as claimed in claim 4 is characterized in that the quantity of digital ring is 3～10.

6, coded lock as claimed in claim 4, the ring cylindrical is provided with the salient angle of 90 degree in it is characterized in that, and digital ring internal diameter is provided with 10 the 90 degree grooves of dividing equally.