I have an invention ,but what to do next ?

Hello everyone :

I have an invention ,it`s a new device for building fire escape , and now I am very puzzled because I don`t know what to do next .Though I work hard to try to promote it ,but so far it still seems hopeless .

Is an invention really a nightmare for a poor inventor? Are all inventions always "fool`gold" for inventors ?
What shall I do ?
http://jinshi.selfrescue.googlepages.com/