Anti-theft mobile phone shell capable of reducing electromagnetic interference based on phase change principle

Abstract

The invention relates to the technical field of mobile phone theft prevention, and discloses an anti-theft mobile phone shell for reducing electromagnetic interference based on a phase change principle, which comprises a mobile phone shell, the middle section of the bottom of the mobile phone shell is movably connected with a rotating block through a flitch, the top of the rotating block is movably connected with a pull ring, and sound production holes are formed in two sides of the bottom of the mobile phone shell. The flitch is movably connected with a spring through a pull rod, the spring is movably connected with a connecting rod sleeve through a pull rod, the connecting rod sleeve is hinged to a short connecting rod through a middle connecting rod arranged outside the connecting rod sleeve, and a rotating wheel is movably connected outside the short connecting rod. According to the anti-theft mobile phone shell capable of reducing electromagnetic interference based on the phase change principle, a pull rod, a connecting rod sleeve and a sliding block sleeve move along with pulling movement of a pull ring, so that a connecting rod drives a piston to move outwards, one-way constraint of an air pressure ball is relieved, a whistle body gives out alarm sound, sound alarm is achieved, the anti-theft effect is achieved, and the anti-theft level of the mobile phone shell is further improved.

Description

technical field [0001] The invention relates to the field of mobile phone anti-theft technology, in particular to an anti-theft mobile phone case that reduces electromagnetic interference based on the principle of phase change. Background technique [0002] The specific function of the mobile phone case is to wrap the mobile phone so as to protect or decorate the decorations. At the same time, the mobile phone protective case not only serves as an ornament to make the mobile phone more beautiful, but also protects the mobile phone, making it anti-drop, scratch-resistant, waterproof and shock-proof. Simultaneously along with the frequent occurrence of mobile phone theft incident, anti-theft mobile phone case also arises at the historic moment. [0003] With the process of modernization, people's dependence on mobile phones is also deepening, and the theft of mobile phones will seriously affect the normal social interaction of some people, and cause psychological panic and red...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides an anti-theft mobile phone case based on the principle of phase change to reduce electromagnetic interference, which has the advantages of high anti-theft level and non-interference signal, and solves the problems of low anti-theft level and interference signal

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