CN2299350Y

CN2299350Y - Key loss indicator

Info

Publication number: CN2299350Y
Application number: CN 97214921
Authority: CN
Inventors: 蒋卫东
Original assignee: Individual
Current assignee: Jiang Weidong
Priority date: 1997-04-17
Filing date: 1997-04-17
Publication date: 1998-12-02
Anticipated expiration: 2007-04-17

Abstract

The utility model relates to a key loss alarm and reminding device which comprises an electronic music integrated block, an amplifying tube and a sounder. The utility model is characterized in that the triggering input end of the electronic music integrated block is connected with a vibrating type contact head. The utility model integrates a music alarm circuit and the vibrating type contact head into a whole, and has the advantages of simple structure, low cost and small size. Once a key falls to the ground, the vibrating type contact head of the utility model can switch on the music alarm circuit to enable the music alarm circuit to send out music for reminding an owner of the falling of the key, and the phenomenon of key loss and the worry and trouble brought by the loss of the key can be avoided; thus, the utility model has an ideal effect.

Description

The key loss reminiscences

The utility model relates to a kind of article lost warning reminding device, particularly key loss warning reminding device.

At present, the used key of people all is enclosed within on the key ring, is placed in the pocket usually or hangs on the waistband, in case lose then bring many worry and worried to people, does not up to the present also have a kind of warning device that can the reminds people key loss.

The purpose of this utility model is exactly in order to address the above problem, and a kind of key loss reminiscences is provided.

Technical solution of the present utility model:

A kind of key loss reminiscences, it includes the electronic music ic chip, and amplifier tube T and sounder Y is characterized in that being connected to oscillatory type contact G at the triggering input end of electronic music ic chip.

The utility model is combined as a whole music alarm circuit and oscillatory type contact, constitute the key loss reminiscences, it is simple in structure, cost is low, volume is little, shape can be determined as required, as heart shape, cross shape or the like, it and key together are sleeved on the key ring, in case key falls on the ground, oscillatory type contact of the present utility model is just connected music alarm circuit makes it send music prompting sound, informs that owner's key falls on the ground, thereby avoided the generation of key loss phenomenon and to worrying of bringing of people and worried, effect is very good.

Fig. 1 is an electrical schematic diagram of the present utility model.

As Fig. 1, the sounder Y in the utility model can be a Microspeaker, also can be hummer.Oscillatory type contact G in the utility model can be made up of elastic wire 1 and spherical small contact 2, its elastic wire 1 one ends trigger input end with one of electronic music ic chip and link to each other, the other end links to each other with spherical small contact 2, spherical small contact 2 is positioned at music integrated block IC, and another triggers a side of input end, leaves certain interval between them.

When the utility model uses, only need it is enclosed within on the key ring with key.After in case key falls on the ground like this, the spherical small contact 2 of its oscillatory type contact G can be swung, thereby connected the triggering input end of electronic music ic chip (model can be CW9310 series) and the loop between the power supply E, IC work makes sounder Y send music prompting sound by amplifier tube T.Four music of general sound quit work owing to oscillatory type contact G no longer vibrates then to cut off the electricity supply automatically then.If the spherical small contact 2 of oscillatory type contact G still in vibration, will make the utility model ring four music once more, thereby reaches the purpose of reminding owner's key to fall on the ground.Regulate its vibration intensity of elastic wire 1 scalable among the oscillatory type contact G, thus the distance that the scalable key falls on the ground, and guarantee that the vibration that key takes out when using disconnects circuit, only the vibration when key lands just can make acoustics circuit work.The time spent does not only need power switch K disconnection is got final product the utility model.

Claims

1, a kind of key loss reminiscences, it includes the electronic music ic chip, and amplifier tube T and sounder Y is characterized in that being connected to oscillatory type contact G at the triggering input end of electronic music ic chip.

2, by the described key loss reminiscences of claim 1, it is characterized in that oscillatory type contact G is made up of elastic wire (1) and spherical small contact (2), its elastic wire (1) one end triggers input end with one of electronic music ic chip and links to each other, the other end links to each other with spherical small contact (2), spherical small contact (2) is positioned at music integrated block IC, and another triggers a side of input end, leaves certain interval between them.