Tissue paper box with automatic lid

Abstract

A tissue paper box with automatic lid includes a case, a lid pivotally disposed on a top of a rear wall of the case, and at least one induction devices disposed on fringe of the lid. The rear wall of the case is hollow for receiving a driving mechanism, a deceleration mechanism, a circuit board, and a power supply. When the induction device detects objects approaching, the circuit board triggers a pivot axle to rotate via the deceleration mechanism to lift the lid up. Specifically, the pivot axle, the driving mechanism, the deceleration mechanism, the circuit board, and the power supply are arranged on a same plane parallel to the rear wall to reduce volume.

What is claimed is: 
     
         1 . A tissue paper box with automatic lid, including:
 a case, having a bottom and an opening remote from the bottom, the case further having a rear wall;   a lid, pivotally disposed on an upper fringe of the rear wall of the case with a pivot axle, the lid being pivotable with respect to the upper fringe of the rear wall, the lid being able to pivot to close the opening of the case;   at least one induction device, disposed on an outer surface of one of the case and the lid, the induction device triggering the lid to open when detecting objects approaching;   wherein the rear wall of the case has a predetermined thickness and is at least partially hollow to form a receiving room therein, a driving mechanism, a deceleration mechanism, a circuit board, and a power supply are disposed in the receiving room, the driving mechanism is electrically connected with the circuit board and the power supply and is mechanically connected with the deceleration mechanism, the deceleration mechanism being mechanically connected with a driving portion of the pivot axle, the induction device is electrically connected with the power supply and the circuit board, the induction device sends a signal to the circuit board when detecting objects approaching, the circuit board further triggers the driving mechanism to drive the driving portion to rotate via the deceleration mechanism, the pivot axle is further rotated by the driving portion to lift the lid up, the pivot axle, the driving mechanism, the deceleration mechanism, the circuit board, and the power supply are arranged substantially on a same predetermined plane, the predetermined plane is perpendicular to the bottom of the case and is parallel to the rear wall of the case.   
     
     
         2 . The tissue paper box with automatic lid of  claim 1 , wherein the driving portion of the pivot axle includes a plurality of teeth arranged around a longitudinal direction of the pivot axle, the deceleration mechanism includes at least one gear wheel which rotates by a direction parallel to a rotation direction of the driving portion. 
     
     
         3 . The tissue paper box with automatic lid of  claim 1 , wherein the power supply includes two battery boxes located at two sides of the circuit board respectively. 
     
     
         4 . The tissue paper box with automatic lid of  claim 1 , wherein the driving mechanism is a motor. 
     
     
         5 . The tissue paper box with automatic lid of  claim 1 , including a plurality of induction devices, the induction devices being spacedly arranged on a fringe of the lid, the induction devices being oriented toward at least two different directions to detect objects approaching from at least two different directions. 
     
     
         6 . The tissue paper box with automatic lid of  claim 1 , further including a shielding plate, the shielding plate being detachably disposed in the case near the opening, the shielding plate being formed with a through hole at a central portion thereof for tissue paper to penetrate through, at least one positioning portion being disposed at a fringe of the shielding plate, at least one restriction portion being formed on an inner wall of the case wherein the restriction portion corresponds to the positioning portion, the positioning portion being able to engage with the restriction portion so that the shielding plate is positioned at a position distant from the bottom of the case in a predetermined distance to prevent the shielding plate from being removed from the case, the shielding plate being substantially parallel to the bottom of the case. 
     
     
         7 . The tissue paper box with automatic lid of  claim 6 , wherein the positioning portion includes an elastic element and a protruding member, the restriction portion is a recess, the elastic element provides elastic force to the protruding member so that the protruding member tends to abut against a bottom of the recess. 
     
     
         8 . The tissue paper box with automatic lid of  claim 1 , wherein the circuit board is able to automatically trigger the driving portion to rotate reversely via the deceleration mechanism to close the lid when the lid has been lifted for a predetermined period of time.