CN2580706Y

CN2580706Y - Theft-proof means for mobile telephone

Info

Publication number: CN2580706Y
Application number: CN 02270164
Authority: CN
Inventors: 张长坤
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-10-19
Filing date: 2002-10-19
Publication date: 2003-10-15
Anticipated expiration: 2012-10-19

Abstract

The utility model relates to a theft-proof device for a mobile telephone. The utility model is provided with a mobile telephone sleeve on which a normally closed button switch is fixedly arranged. A button of the normally closed button switch is positioned in the mobile telephone sleeve. The normally closed button switch is connected with an alarm circuit. A manual switch for controlling the switching on and the switching off of the alarm circuit is arranged in the alarm circuit. The utility model has the advantages of simple structure and convenient operation. Once the mobile telephone is normally separated from the mobile telephone sleeve, the alarm circuit can alarm immediately and a mobile telephone holder can timely discover.

Description

Anti-stealing device for handset

Technical field

The utility model relates to burglar alarm, specifically a kind of anti-stealing device for handset.

Background technology

Mostly the cellie adopts cell-phone cover to carry mobile phone, places mobile phone by the cell-phone cover of not hanging with oneself, concerning the user, have easy to carry, use advantage smoothly.But existing cell-phone cover is the antitheft and anti-lost function of tool not, and on public transport or crowded public place, the robber opens the situation of stealing mobile phone with cell-phone cover and happens occasionally, and behind the hand-set from stolen, the carrier can't in time find.

Summary of the invention

The purpose of this utility model is to provide a kind of anti-stealing device for handset, and after the cell-phone cover that mobile phone is improper and this device is contained separated, the user can in time find.

For achieving the above object, the utility model adopts following scheme: it has a cell-phone cover, on cell-phone cover, be installed with a normally closed push button switch, the button of normally closed push button switch is positioned at cell-phone cover, a normally closed push button switch and a warning circuit join, and are provided with the hand switch of its break-make of control in this warning circuit.

By such scheme as seen, when the hand switch in the warning circuit is in closure state, after mobile phone is placed in the cell-phone cover, mobile phone is being oppressed the button of normally closed push button switch, the warning circuit dead electricity, when mobile phone with after cell-phone cover separates, normally closed push button switch resets, and warning circuit gets electric, instant alarming.When the cellphone subscriber needs normally to use phone, manually disconnect the hand switch in the warning circuit earlier, and then take out the mobile phone use, warning circuit is not then worked.

The utility model is simple in structure, and is easy to use, in case after mobile phone separated with cell-phone cover is improper, warning circuit can be reported to the police immediately, and the mobile phone holder is in time found.

Description of drawings

The structural representation of Fig. 1 the utility model embodiment one;

The structural representation of Fig. 2 the utility model embodiment two;

Among Fig. 3 Fig. 1, Fig. 2 the setting of warning circuit and with the schematic diagram of normally closed push button switch connected mode.

Embodiment

Further specify the utility model below in conjunction with embodiment and accompanying drawing.

Embodiment one

Referring to Fig. 1, the anti-stealing device for handset that the utility model provides includes cell-phone cover 1, normally closed push button switch 2, reaches warning circuit, normally closed push button switch 2 is installed on the cell-phone cover 1, the button 2 of normally closed push button switch 2 ' be positioned at cell-phone cover 1, the warning circuit that joins with normally closed push button switch 2 is composed in series by power supply 3, hand switch 4, buzzer 5.Normally closed push button switch 2 joins with two ends of this warning circuit.

Embodiment two

Referring to Fig. 2, in cell-phone cover, be installed with a base 6 on 1 inwall, be installed with an elastic spring 7 on the base 6, an end of elastic spring 7 is connected on the base 6, the other end is with respect to base 6 perks.Elastic spring 7 adopts sheet metal.Be located at the button 2 of the normally closed push button switch 2 on the cell-phone cover 1 ' pass base 6 to stretch in the cell-phone cover 1, the button 2 of normally closed push button switch 2 ' get close to and facing to the inboard of elastic spring 7.The part of normally closed push button switch 2 reaches outside the mantle, and the warning circuit that normally closed push button switch 2 is connect is with shown in Figure 1 identical.After mobile phone is put in people's cell-phone cover 1, can be by elastic spring 7 with the button 2 of normally closed push button switch 2 ' press, after mobile phone took out in the cell-phone cover 1, elastic spring 7 was upspring, and normally closed push button switch 2 resets immediately.

Referring to Fig. 3, carry warning circuit for ease of the user, the warning circuit that Fig. 1, power supply 3 shown in Figure 2, hand switch 4 and buzzer 5 are formed is placed in the box body 8, wherein the button 4 of hand switch 4 ' expose outside box body 8.Box body 8 is provided with an elasticity card 9, and the user can not hang over box body 8 between waist by elasticity card 9.In addition, the warning circuit that is arranged in the box body 8 joins with normally closed push button switch 2 by lead 10 and connecting element 11, and like this, box body 8 can separate as required with 7 of cell-phone covers, to make things convenient for the user.

By Fig. 1, Fig. 2 as seen, during hand switch 4 closures, after mobile phone is placed in the cell-phone cover 7, mobile phone directly or by elastic spring 7 press the button 2 of normally closed push button switch 2 ', make its disconnection, the warning circuit dead electricity is after mobile phone takes out from cell-phone cover 7, normally closed push button switch 2 resets, and warning circuit gets.Therefore, when hand switch 4 is in closure state, when mobile phone and cell-phone cover are improper separate after, warning circuit gets electric, buzzer 5 warning of ringing immediately.When the cellphone subscriber normally uses phone, disconnect hand switch 4 earlier, and then take out mobile phone and use, warning circuit is not then worked.

Claims

1, anti-stealing device for handset, it has a cell-phone cover (1), it is characterized in that: on cell-phone cover (1), be installed with a normally closed push button switch (2), the button (2 ') of normally closed push button switch (2) is positioned at cell-phone cover (1), normally closed push button switch (2) joins with a warning circuit, is provided with the hand switch of its break-make of control in this warning circuit.

2, anti-stealing device for handset according to claim 1, it is characterized in that: described warning circuit is composed in series by power supply (3), hand switch (4), buzzer (5), normally closed push button switch (2) joins with two ends of warning circuit, this warning circuit is arranged in the box body (8), and wherein the button (4 ') of hand switch (4) exposes outside box body (8).

3, anti-stealing device for handset according to claim 1, it is characterized in that: on cell-phone cover (1) inwall, be installed with a base (6), be installed with an elastic spring (7) on the base (6), one end of elastic spring (7) is connected in that base (6) is gone up, the other end is with respect to base (6) perk, and the button (2 ') of normally closed push button switch (2) passes that base (6) gets close to and facing to the inboard of elastic spring (7).