Buried concealable intelligent manhole cover

Abstract

A buried concealable intelligent manhole cover includes a fixing frame arranged in a recessed cavity formed in ground, a manhole cover arranged on the fixing frame, a fixing ring fixed at an upper end of the fixing frame outside the manhole cover, a ground indication frame mounted on an upper end of the fixing ring; a plurality of elevation mechanisms arranged, at intervals, in an interior of the fixing frame, each of the elevation mechanisms having an end connected to an undersurface of the manhole cover; and an electrical power controller mounted on an outside surface of the fixing frame and is electrically connected to each of the elevation mechanisms, the electrical power controller including an electrical power receiving coil to receive electrical power transmitted from an electrical power transmitter of a wireless charger on the ground to activate each of the elevation mechanisms.

I claim: 
     
         1 . A buried concealable intelligent manhole cover, comprising:
 a fixing frame, which is arranged in a recessed cavity in ground, a manhole cover being arranged at an upper end of the fixing frame, a fixing ring being fixed at the upper end of the fixing frame and at an outside of the manhole cover for reinforcing a structure capability of the manhole cover and reducing cover-opening resistance, a ground indication frame being mounted on an upper end of the fixing ring;   a plurality of elevation mechanisms, which are arranged, at intervals, in an interior of the fixing frame, each of the elevation mechanisms having an end connected to an undersurface of the manhole cover; and   an electrical power controller, which is mounted on an outside surface of the fixing frame and is electrically connected to each of the elevation mechanisms, an electrical power receiving coil being arranged at an upper end of the electrical power controller, the electrical power receiving coil being operable to receive electrical power transmitted from an electrical power transmitter of a wireless charger on the ground to activate each of the elevation mechanisms.   
     
     
         2 . The buried concealable intelligent manhole cover according to  claim 1 , wherein each of the elevation mechanism comprises a plurality of reduction gear boxes, which are mounted, at intervals, on an inside surface of the fixing frame, each of the reduction gear boxes having an input end to which an electrical machine controlled by the electrical power controller is fixed, each of the reduction gear boxes having an output end fixedly connected to a lifting bolt, each of the lifting bolts having a nut connected to the fixing frame, each of the lifting bolts having an upper end on which the manhole cover is positioned and supported, each of the reduction gear boxes being provided, at one side thereof, with a symmetrically arranged guide pole to prevent the reduction gear box from rotating and to form a track to assist upward and downward sliding of the reduction gear box, each of the guide poles having an upper end fixedly connected to the fixing frame. 
     
     
         3 . The buried concealable intelligent manhole cover according to  claim 1 , wherein the recessed cavity includes, in an interior thereof, an upper inside-diameter portion and a lower inside-diameter portion, the upper inside-diameter portion having a diameter greater than the lower inside-diameter portion, so that a ledge portion is formed between the upper inside-diameter portion and the lower inside-diameter portion, the fixing frame being positioned and supported on the ledge portion. 
     
     
         4 . The buried concealable intelligent manhole cover according to  claim 1 , wherein the manhole cover is buried under the ground at a depth of 1 centimeter to 50 centimeters and has a surface covered with a ground material, the ground material being asphalt or concrete, the ground indication frame recording a location of the electrical power receiving coil and isolating a top of the manhole cover and asphalt or concrete covering the ground. 
     
     
         5 . The buried concealable intelligent manhole cover according to  claim 4 , wherein the ground material covering the upper end of the manhole cover and an upper surface of the ground indication frame are flush with an upper surface of the ground, material being completely identical to and the ground. 
     
     
         6 . The buried concealable intelligent manhole cover according to  claim 5 , wherein the ground indication frame is formed of multiple frames and comprises a material that is a soft material.