CN2485878Y

CN2485878Y - Alarm cover for mobile telephone against stealing

Info

Publication number: CN2485878Y
Application number: CN 01222451
Authority: CN
Inventors: 李泰春
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-05-11
Filing date: 2001-05-11
Publication date: 2002-04-10
Anticipated expiration: 2011-05-11

Abstract

An alarm cover for mobile telephone against stealing comprises a mobile phone cover and a suspending clamp. The utility model is characterized in that: the alarm cover is further provided with an alarming circuit; an alarm circuit board, battery, power switch and a button AN2 which is interlocked with the press handle of the suspending clamp button are mounted on the suspending clamp; a button AN3 is arranged at the hasp of the mobile phone cover. Switching on the power switch, the alarm cover is in forewarning status; the dismantling of the suspending clamp or the open of the hasp of the mobile phone can trigger the alarm circuit to alarm, warning the user; thus, the function of anti-pick or stealing prevention is achieved.

Description

Mobile phone anti-theft alarm hanging type handset cover

The utility model relates to the handset anti-theft alarm device, particularly a kind of mobile phone anti-theft alarm hanging type handset cover.

Existingly anti-take off the burglar alarm product and be used for large-sized object more, the product that prevents hand-set from stolen that combines with mobile phone is complicated because of its structure, and cost is higher, is difficult for promoting on market.The small-sized anti-theft device that is exclusively used in mobile phone does not still have at present, and the cellphone subscriber usually is in the dock, and hand-set from stolen happens occasionally, and has brought very big loss to the user.

The purpose of this utility model is to overcome the above-mentioned deficiency of prior art, provides the mobile phone anti-theft alarm that a kind of volume is little, cost is low hanging type handset cover, to satisfy cellphone subscriber's demand.

The utility model is the improvement shape product of existing cell-phone cover.Comprise: the extension folder (3) on cell-phone cover (1) and the mantle, it is characterized in that: also be provided with the warning circuit part, warning circuit plate (32), battery (35), mains switch K (33) and be installed in the button AN2 (36) that hangs cramping handle button (31) interlock hung on the folder (3).Make mains switch K (33) closure, warning device is in alert status, presses the pressure handle button (31) of hanging folder and makes button AN2 (36) closure, triggers warning circuit and reports to the police.

The hasp (11) of cell-phone cover (1) locates also to be provided with button AN3, and button AN3 is in parallel with the button AN2 that hangs on pressing from both sides.When illegally opening the hasp of mantle, make button AN3 closure, also can trigger warning circuit and report to the police.

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

Fig. 1 reports to the police for it and hangs the schematic diagram of folder;

Fig. 2 reports to the police for it and hangs the schematic rear view of folder;

Fig. 3 is the schematic rear view of its cell-phone cover;

Fig. 4 is the side schematic view of its cell-phone cover;

Fig. 5 is its assembled state figure;

Fig. 6 is the embodiment circuit diagram.

As shown in Figure 1, 2, antitheft extension clip back plate is provided with warning circuit plate (32) in the middle part, and battery (35) is installed in hangs the folder afterbody, and mains switch K (33) and Microspeaker (34) also place to be hung on the folder, hanging folder (3) another side has pressure handle button (31), is used to control the taking-up of mobile phone.Button AN2 (36) is installed in the pressure handle, and the bottom that hangs folder is provided with the connection that circuit interface (37) is used for the mantle partial circuit.

The mantle part is shown in Fig. 3,4, and the opening hasp (11) of cell-phone cover (1) locates to be provided with button AN3, and button AN3 is in parallel by the button AN2 (36) on the built-in connection lead of cover, foregoing circuit interface (37) and the extension folder (3).

Fig. 5 hangs folder and mantle part assembled state figure for it.Hang and press from both sides the back that (3) are loaded on mantle (1), hang in the clip back plate circuit board (32), battery, K switch (33) and Microspeaker are set.Hanging the folder another side has pressure handle button (31), and button AN2 (32) is installed in the pressure handle, and the bottom that hangs folder is provided with the connection that circuit interface (37) is used for the mantle partial circuit.Mobile phone (2) places mantle (1), and the hasp of cell-phone cover (11) locates also to be provided with a trigger button AN3.Open K switch, warning device promptly is in alert status, presses the pressure handle button (31) of hanging folder and makes button AN2 closure, triggers warning circuit and reports to the police.When the hasp of illegally opening mantle (11), make the button AN3 closure at this place, also trigger warning circuit and report to the police.

Fig. 6 is the embodiment circuit diagram.Warning circuit adopts KD9561 four tones of standard Chinese pronunciation warning circuit, and resistance R 2 is an outer meeting resistance, and one-way SCR VT is connected in its electric power loop, and positive source is received the trigger end of controllable silicon VT by resistance R 1 and push-button switch AN2, AN3 in parallel.

The output of KD9561 circuit connects the drive circuit that is made of triode T1, T2, Microspeaker BL and load resistance R3 etc.When mains switch K is closed, push-button switch AN2, AN3 both one of touched, can trigger controllable silicon VT conducting, the KD9561 circuit powers up work, the alarm signal that output is set promotes loudspeaker through amplifying circuit and sends chimes of doom.

During non-alert status, mains switch K cut-offs, and circuit is not worked.When taking out mobile phone, can first powered-down K switch, depress the pressure handle switch of hanging folder and take mobile phone and extract machine.The hasp that also can open cell-phone cover directly takes out mobile phone.When mobile phone placed mantle, the power-on K switch promptly was in alert status, as long as set out folder or open the mantle hasp and can trigger warning circuit and report to the police, reminded owner to note, obtained anti-ly immediately taking off, antitheft purpose.

Claims

1, mobile phone anti-theft alarm hanging type handset cover, comprise the extension folder (3) on cell-phone cover (1) and the mantle, it is characterized in that: also be provided with the warning circuit part, warning circuit plate (32), battery (35), mains switch K (33) and be installed in the button AN2 (36) that hangs cramping handle button (31) interlock hung on the folder (3), when mains switch K is closed, press the pressure handle button of hanging folder and make button AN2 closure, trigger warning circuit and report to the police.

2, according to the described mobile phone anti-theft alarm of claim 1 hanging type handset cover, work being characterised in that: the hasp (11) of cell-phone cover (1) locates also to be provided with button AN3, and button AN3 is in parallel with the button AN2 that hangs on pressing from both sides.

3, according to the described mobile phone anti-theft alarm of claim 1 hanging type handset cover, it is characterized in that: described warning circuit adopts the KD9561 circuit.