CN2378475Y

CN2378475Y - Memory puzzle lock

Info

Publication number: CN2378475Y
Application number: CN 99234718
Authority: CN
Inventors: 黄泉兴; 洪淑兰; 韩志礼; 梁永军
Original assignee: XI'AN POLYTECHNICAL COLLEGE
Current assignee: XI'AN POLYTECHNICAL COLLEGE
Priority date: 1999-06-18
Filing date: 1999-06-18
Publication date: 2000-05-17
Anticipated expiration: 2009-06-18

Abstract

The utility model relates to a memory code lock, which is composed of a lock body, and an electronic code control circuit, and is also formed by the reconstruction of the ordinary lock. An actuating mechanism of the lock uses shape memory alloy springs; the utility model realizes the purpose of opening and closing in a temperature-sensitive mode through the memory characteristic of shape memory alloy, and realizes the setting input and the collation of codes through the electronic code control circuit. With the interaction between the memory springs and the control circuit, the control of the interaction is accurate, and thus, the utility model realizes the purpose of opening and closing the memory codes. The utility model has the advantages of simple structure, convenient operation, reliability, low cost, and easy development. The utility model can be used for the technical field of fire prevention, fire protection, buildings, etc., and can also be used for a safety lock of demand occasions of doors, windows, cabinets, cars, computers, etc. of families and office buildings.

Description

Memory puzzle lock

The utility model relates to daily necessities or mechanical lock class, mainly relates to coded lock, specifically is a kind of Memory puzzle lock.

No matter be door lock, table lock, sash lock, safety lock or the Vehicle lock of family expenses, people continue to use the mechanical type ball spring lock always for a long time, requirement owing to antitheft, pick-proof, fire prevention and each side, people are seeking a kind of intelligence lock that password is arranged and have automatic function always, and many people explore in this respect and attempt.The patent No. is that the utility model of ZL952060701 is a kind of button variable code coded lock, and the changeability of password is devoted in the design of this lock.But still the genus mechanical type is complicated.The patent No. is a kind of mechanical code lock of breaking a code of preventing for the ZL962458880 push-button puzzle lock.They all belong to mechanical code lock.The patent No. is many insurances Puzzle electronic lock of ZL972364579, the electronic cipher circuit is arranged, but it focuses on warning function.

The purpose of this utility model is to provide a kind of simple in structure, but temperature-sensitive and starting, simultaneously also can set up password on their own, vi have high safety, and open convenient, driving force is big and need not the participation of active components such as motor, without key, can report to the police, can eliminate various voluntarily because of individual or the error code that causes of other people misoperation, can be adapted to the very big or micro-various occasions of moment as required, can satisfy very big elasticity, also can arrange in pairs or groups and the memory safety lock of different occasions such as using miniature lock with less flexible spring.

Design of the present utility model is to adopt shape memory alloy spring (hereinafter to be referred as memory spring 1), makes up the executing agency that forms lock with one or more bias spring.Marmem has memory characteristic, and usually at room temperature, it is a kind of state.When environment temperature was elevated to a certain memory temperature, it can shrink or uphold, and realizes temperature control with this, and the applied in any combination of bias spring can realize that big moment promotes or the operation of little moment in addition.Utilize the electronic cipher circuit to control memory spring 1, promptly also can accomplish Artificial Control experiment cryptographic function its heating.

Below in conjunction with accompanying drawing the utility model is elaborated, embodiment also is melted into wherein.

Fig. 1 is a structural representation of the present utility model:

Fig. 2 is the utility model control circuit figure.

Realization of the present utility model is also to be provided with electronic password control circuit (2) in normally used mechanical reed lock, and the executing agency of lock forms with common spring 5 formations and by shape memory alloy spring 1 and bias spring 4, bias spring 4 is that dead bolt links to each other with tapered end, and memory spring 1 is separated by with bias spring 4 by a sideboard 6.As shown in Figure 1, control circuit 2 is connected on note

Recall on the spring 1.Because having a martensite to reverse, memory spring 1 becomes the some A of ending _f, when environment temperature reaches A _fThe time memory spring 1 can refresh memory shape, utilize this characteristic to produce displacement, drive the folding of latch mechanism.

Realization of the present utility model also is bias spring 4 in the executing agency and shape memory spring 1 serializable and puts, and also can walk abreast and puts, can one memory spring 1 and one or more bias spring 4 combinations.

As shown realization of the present utility model shown in 2 also be control circuit by some registers as: 4017 and peripheral circuit form encoder.Form decoder by A, B, four NAND gates of C, D, by relay control memory spring 1 memory spring 1 is heated up and when it reaches Af, produce driving force and displacement, thus the Push And Release of control lock.

The course of work of the present utility model is such: under room temperature state, lock is in closed condition, and the transformation temperature of marmem can be set according to various required situations, if when the utility model was used for fireproof safety door, setting its transformation temperature was A _fBe a certain value between 50--70 ℃.When environment temperature raises, T ring＞A _fThe time, memory spring 1 draws and stretches, moves to right, drives motion bar 3 and moves to right, and this moment, bias spring 4 was compressed, and tapered end moves to right, and lock is opened.Touch mutually two contacts 8,9, and relay J can be cut off circuit, and after the circuitry cuts, memory spring 1 can cool off, and executing agency can restore under the elastic force of biasing spring 4, also can connect warning circuit, instant alarming simultaneously.This function and design can make the utility model be used to the to prevent fires automatic control and warning of locking device of mechanism such as fire services installations, also can be used for the special use lock of the escape way door in the building.

The utility model is except that but temperature sensor can be opened automatically, but setting code is also imported the automatic unlatching that correct password just can control lock, without key.Such as setting code is 666 o'clock, and the 5. pin of 4017 among Fig. 2 is high level simultaneously, and (11) pin of NAND gate D is output as high level simultaneously, makes the T1 conducting, and the relay J folding is that shape memory spring 1 was energized after J connected.Resistance by himself makes its heating, can auto-action when reaching Af.As previously mentioned, lock is promptly opened.

The combination that the utility model has been used memory spring and the spring of setovering with cooperate, the design of corresponding electronic password control circuit is arranged again, both interactions make the utility model become a kind of novel Memory puzzle lock, it has the dual-use function of temperature-sensitive folding and password folding, can control automatically, can report to the police, need not motor, the participation of active component, driving force is big, vi have high safety, no matter individual or other people have misoperation all can eliminate, advantage such as easy to use, can be applicable to fire prevention, fire-fighting and building field, and can use as a kind of family expenses safety cabinet, door is used, the lockset of automobile-used grade has the extensive use field.

Claims

1, a kind of Memory puzzle lock, has lock body, tapered end, executing agency, it is characterized in that also having electronic password control circuit (2), the executing agency of lock is combined by shape memory bullet (1) and bias spring (4), tapered end (5) is being fixed motion bar (3), motion bar (3) is divided into two partly by baffle plate (6), a part is equipped with bias spring (4), another partly is equipped with shape memory spring (1), the head of motion bar (3) and the cavity bottom of executing agency be provided with movable contact and and contact (9), shape memory spring (1) is provided with the control circuit line and connects lead.

2, according to the described Memory puzzle lock of claim (1), it is characterized in that bias spring (4) and memory spring 1 can the serial settings, setting also can walk abreast.

3, it is characterized in that according to claim (1) or (2) described Memory puzzle lock electronic password control circuit forms coding circuit by some counters and peripheral circuit thereof, and corresponding NAND gate decoder, control memory spring (1) by relay, if desired, also can meanwhile connect warning circuit.