CN2419868Y - Anti-theft device - Google Patents
Anti-theft device Download PDFInfo
- Publication number
- CN2419868Y CN2419868Y CN 00201249 CN00201249U CN2419868Y CN 2419868 Y CN2419868 Y CN 2419868Y CN 00201249 CN00201249 CN 00201249 CN 00201249 U CN00201249 U CN 00201249U CN 2419868 Y CN2419868 Y CN 2419868Y
- Authority
- CN
- China
- Prior art keywords
- theft device
- box body
- contact piece
- electric contact
- elasticity electric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to an anti-theft device. The utility model comprises a box body which can be fixed on a valuable article, wherein, a sounding circuit formed by that a power supply, an elastic electrical contact element and a music loudspeaker are connected in series is arranged in the box body; the elastic electrical contact element is composed of two conducting contact elements which are mutually contacted; an insulating card can be inserted between the two conducting contact elements of the elastic electrical contact element; one end of the insulating card is connected with a chain which can be fixed on clothes, leather bags, etc. When the valuable article is taken out, the insulating card is disengaged from the box body of the anti-theft device, the elastic electrical contact element switches on a circuit, and the anti-theft device sends out musical sounds so as to remind a user and to achieve the purpose of theft protection. The utility model has the advantages of simple principle, small size, convenient carrying and low cost.
Description
The utility model relates to a kind of anti-theft device.
In the life because carelessness of people; lose valuables such as wallet, mobile phone, key through regular meeting; cause damage to the owner; particularly the thief looks with covetous eyes especially to people's valuable property, therefore designs a kind of anti-theft device that can note with regard to reminds people and seem particularly important before these unnecessary troubles take place.
In view of above-mentioned, the purpose of this utility model just provides the anti-theft device that a kind of volume is little, easy to carry, can avoid the valuables carried to lose.
The purpose of this utility model is achieved through the following technical solutions:
A kind of anti-theft device is characterized in that it comprises:
One box body is equipped with the phonation circuit that is made of power supply, elasticity electric contact piece, the series loop of music loudspeaker in the box body, described elasticity electric contact piece is made of two conductive contact members that contact with each other; One edge insulator, it inserts between two conductive contact members of described elasticity electric contact piece, and the one end connects chain.
Can be connected in series switch in the described phonation circuit.
The other end of described chain can connect ring bodies.
On the described box body retainer ring can be set.
Described elasticity electric contact piece is made of the pair of metal reed that contacts with each other or a metal spring leaf and a fixing metal sheet or a metal spring and a fixing metal sheet.
When between two conductive contact members that edge insulator inserted the elasticity electric contact piece, edge insulator will completely cut off two conductive contact members, thereby cut off circuit, make the loudspeaker can not sounding; After edge insulator was extracted the alarm box body, the contact of two conductive contact members was switched on circuit, and loudspeaker is just sounded.
The utility model anti-theft device principle is simple, volume is little, easy to carry, low cost of manufacture, because what alarm sent is musical sound, musical sound can have multiple, is not sick of sense so can not cause to the user when normally using article such as wallet, mobile phone, key the user.The switch of alarm can be turned off, thereby bring convenience when not needing to use anti-theft feature when the user thinks in some occasion to the user.
Below in conjunction with drawings and Examples the utility model is elaborated.
Fig. 1 is the alarm schematic diagram;
Fig. 2 is alarm front appearance figure;
Fig. 3 is an alarm side outside drawing;
Fig. 4 is the alarm internal structural map.
See also accompanying drawing.The utility model alarm comprises a box body 1 and a metal bracelet 3.The phonation circuit that is made of power supply 6 (being made of battery), elasticity electric contact piece 7, music loudspeaker 9 (being the integrated music sheet) series loop is housed in the box body 1.Elasticity electric contact piece 7 is made of two conductive contact members that contact with each other, such as: a pair of metal reed that contacts with each other or a metal spring leaf that contacts with each other and a fixing metal sheet or a metal spring that contacts with each other and a fixing metal sheet etc.One end of metal bracelet 3 connects an edge insulator 4, and edge insulator 4 is the lamellar body that a usefulness insulating materials is made, and can insert between two conductive contact members of the elasticity electric contact piece 7 in the box body 1.
During use, the box body 1 of alarm is fixed in the antitheft valuables of needs such as wallet, mobile phone or on the article, edge insulator 4 is inserted between two conductive contact members of the elasticity electric contact piece 7 in the box body 1, and the other end of metal bracelet 3 can be fixed in suitcase or the pocket.Because have edge insulator 4 to isolate between two conductive contact members of elasticity electric contact piece 7, phonation circuit can not constitute electric loop, so phonation circuit is not worked.
When article such as the wallet that is fixed with alarm box body 1, mobile phone take out, edge insulator 4 can separate with alarm box body 1, so two conductive contact members of elasticity electric contact piece 7 are in contact with one another under elastic reaction, phonation circuit is connected, music loudspeaker 9 is got, send melodious music, when article such as wallet drop accidentally or stolen out by the thief, have music alarm like this, thereby reach the purpose of reminding the user.
In other embodiment of the present utility model:
Can be connected in series switch 8 in the phonation circuit, when needing to use anti-theft feature, can be with this switch connection; When thinking in some occasion, the user switch 8 of alarm can be turned off when not needing to use anti-theft feature.
The other end of chain 3 can connect the ring bodies 5 of copper ring and so on, and copper ring 5 can be connected with clip or safety pin etc., so that metallic bond 3 can be connected with clothes, suitcase etc.
On the box body 1 retainer ring 2 can be set, so that alarm and the article that need antitheft anti-loss are fixed, for example this retainer ring 2 be connected with key, alarm just becomes the key chain of the meeting singing that can prevent that key from losing.
Trade name of the present utility model is " a mini alarm ".
Claims (8)
1. anti-theft device is characterized in that it comprises:
One box body is equipped with the phonation circuit that is made of power supply, elasticity electric contact piece, the series loop of music loudspeaker in the box body, described elasticity electric contact piece is made of two conductive contact members that contact with each other;
One edge insulator, it inserts between two conductive contact members of described elasticity electric contact piece, and the one end connects chain.
2. a kind of anti-theft device as claimed in claim 1 is characterized in that being connected in series switch in the described phonation circuit.
3. a kind of anti-theft device as claimed in claim 1 or 2 is characterized in that the other end of described chain connects ring bodies.
4. a kind of anti-theft device as claimed in claim 1 or 2 is characterized in that on the described box body retainer ring being set.
5. a kind of anti-theft device as claimed in claim 3 is characterized in that on the described box body retainer ring being set.
6. a kind of anti-theft device as claimed in claim 1 is characterized in that described elasticity electric contact piece is made of a pair of metal spring leaf that contacts with each other.
7. a kind of anti-theft device as claimed in claim 1 is characterized in that described elasticity electric contact piece is made of a metal spring leaf that contacts with each other and a fixing metal sheet.
8. a kind of anti-theft device as claimed in claim 1 is characterized in that described elasticity electric contact piece is made of a metal spring that contacts with each other and a fixing metal sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00201249 CN2419868Y (en) | 2000-01-28 | 2000-01-28 | Anti-theft device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00201249 CN2419868Y (en) | 2000-01-28 | 2000-01-28 | Anti-theft device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2419868Y true CN2419868Y (en) | 2001-02-21 |
Family
ID=33570552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00201249 Expired - Fee Related CN2419868Y (en) | 2000-01-28 | 2000-01-28 | Anti-theft device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2419868Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102462120A (en) * | 2010-11-01 | 2012-05-23 | 吴昌德 | Bag capable of preventing mobile phone loss |
| CN105957297A (en) * | 2016-06-30 | 2016-09-21 | 韩鸿升 | Warning device and application thereof on the turnover box |
-
2000
- 2000-01-28 CN CN 00201249 patent/CN2419868Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102462120A (en) * | 2010-11-01 | 2012-05-23 | 吴昌德 | Bag capable of preventing mobile phone loss |
| CN105957297A (en) * | 2016-06-30 | 2016-09-21 | 韩鸿升 | Warning device and application thereof on the turnover box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |