CN2161208Y - Key holder - Google Patents

Abstract

The utility model relates to an anti-loss key string. A string hook and a suspension loop for a key are arranged on a casing of the utility model. The utility model is characterized in that a shaft of the string hook is arranged in the casing and can move, a spring which can make the string hook reset when the string hook moves is arranged on the shaft, and a contact piece is arranged at the lower end of the shaft; a device which is matched with the open end of the string hook is arranged on the casing, and the string hook and the shaft thereof can move in the device; a music integrated piece, batteries, a loudspeaker and a contact piece are arranged in the casing, and the contact piece can make a circuit switched on and the loudspeaker to emit sound when contacts the contact piece at the lower end of the shaft; a sound hole is arranged on the casing and positioned in the position of the loudspeaker. When the key possibly drops or is taken off, the utility model can remind people. The utility model has the advantages of convenient use, simple structure and low cost.

Description

Key holder

The utility model relates to a kind of anti-key chain of losing.

At present, various key chain are made of shell, string hook and key-ring on the market, when key chain when human body drops or take off, warnings of can not sounding, frequent thing of losing key.

The purpose of this utility model provides a kind of anti-key chain of losing that can sound and report to the police when key chain when human body drops or take off.

The utility model is achieved in that and is provided with string hook and key-ring on its shell in order to achieve the above object; It is characterized in that: the axle of string hook is located in the shell and is movable, makes its spring that resets being provided with on the axle when it move, spool the lower end be provided with contact chip A; Being provided with one on shell coincide with the openend of string hook and device that string hook and axle thereof can move therein; Be provided with music integrated chip, battery and loudspeaker in the enclosure, also be provided with one within it and when contacting, make circuit connect the contact chip B that loudspeaker is sounded with contact chip A; Be provided with sound holes in the upper position of shell in loudspeaker.When key chain was hung personal going up, the device on the shell coincide with the openend of string hook; When key chain will drop or take off, this device on the shell did not match with string hook openend, must be that the string hook up draws, and at this moment contact chip A contacts with contact chip B, the loudspeaker warning of sounding.After reminds people uses up key, key chain should be hung back on one's body or key drops, key chain has only to hang back makes the string hook reset on one's body, and chimes of doom just can stop.

The utility model also has, and the device that closes with the string elegant jessamine on the shell is a groove.Be provided with a fixed block of axle swing that prevents to go here and there hook in the enclosure.

The utility model compared with prior art has following advantage:

1, when may dropping or take off, key can send alarm sound;

2, easy to use, simple in structure, cost is low.

Fig. 2 is a side view of the present utility model;

Fig. 3 is A-A ' cutaway view of the present utility model;

Fig. 4 is a circuit diagram of the present utility model.

Below in conjunction with accompanying drawing the utility model is further described:

With reference to Fig. 1,2,3, on its shell 14, be provided with string hook 1 and key-ring 8, the axle 5 of string hook 1 is located in the shell 14 also movable, when up moving, it makes its spring that resets 2 being provided with on the axle 5, on axle 5, be provided with the groove 15 and the contact chip 6 of an annular, the lower end of spring 2 embeds in the groove 11 and fixes, and the upper end of spring 2 and shell 14 surfaces contact.Be provided with music integrated chip 13, battery 12 and loudspeaker 3 in shell 14, the position that is positioned at loudspeaker 3 on shell 14 is provided with sound holes 4; Crosswise fixed in shell 14 has a fixed block 10, and there is a hole in the central authorities of fixed block 10, and axle 2 passes the upper and lower and rotation of this Kong Bingke; Contact chip 6 on the axle 5 is positioned at the below of fixed block 10.Fixed block 10 is provided with a contact chip 9.As shown in Figure 4, music integrated chip 13, battery 12, loudspeaker 3, contact chip 6 and contact chip 9 series connection, contact chip 6 connects the negative pole of battery 12, and contact chip 9 connects an end of loudspeaker 3; When string hook 1 up moved, contact chip 6 contacted with contact chip 9, and loudspeaker 3 is sounded.The groove 15 that hook 1 openend that is provided with and goes here and there on shell 14 coincide is when string hook 1 is up carried and during half-twist, string hook 1 can be placed on the groove 15.Manufacture as shell 14, axle 5 and fixed block 10 usefulness metals, between contact chip 9 and fixed block 10, need establish an insulating barrier, on axle 5, may be provided with an insulating barrier with fixed block 10 position contacting.

Claims (3)

1, a kind of anti-key chain of losing, shell 14 is provided with string hook 1 and key-ring 8; It is characterized in that: the axle 5 of string hook 1 is located in the shell 14 and is movable, makes its spring that resets 2 being provided with on the axle 5 when it move, and spools 5 lower end is provided with contact chip 6; Being provided with one on shell 14 coincide and string hook 1 and axle 5 devices that can move therein 15 thereof with the openend of string hook 1; In shell 14, be provided with music integrated chip 13, battery 12 and loudspeaker 3, also be provided with one within it and when contacting, make circuit connect the contact chip 9 that loudspeaker 3 is sounded with contact chip 6; The position that is positioned at loudspeaker 3 on shell 14 is provided with sound holes 4.

2, according to claim 1ly anti-lose key chain, it is characterized in that: the device 15 that coincide with the openend of string hook 1 on the shell 14 is a groove.

3, according to claim 1 and 2ly anti-lose key chain, it is characterized in that: in shell 14, be provided with the fixed blocks 10 of axle 5 swings that prevent to go here and there hook 1.

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