Fire-resistant and heat-insulating door/wall structure

Abstract

The invention relates to a fire-resistant and heat-insulating door/wall structure, which is installed inside a hollow door plank or wallboard frame that is made of a refractory material. The characteristic of the invention lies in that the fire-resistant and heat-insulating structure is in the form of board enabling at least a foamed block board to have a layer of cement insulated material attached thereto. The cement insulated material is made up of mixing thermally expansible material with other organic or inorganic fire-resistance. Accordingly, when the invention is burning by a fire, the foamed block board is rapidly melted by the heat, and at the same time, the heat enables the cement insulated material to inflate and fill the inner frame instantly. Thus the invention enables the frame to be filled compactly with the cement insulated material after inflation, so as to possess better fire-resistant and heat-insulating effects.

1 . A fire-resistant and heat-insulating door/wall structure, wherein the fire-resistant and heat-insulating structure is a structure being installed in a frame of a door plank or wallboard that is made of a refractory material, the characteristic lies in: the fire-resistant and heat-insulating structure is a board enabling a foamed block board to have at least a layer of cement insulated material attached thereto; the cement insulated material is made up of mixing thermally expansible material with other organic or inorganic fire-resistance.  
   
   
       2 . The fire-resistant and heat-insulating door/wall structure of  claim 1 , wherein the fire-resistant and heat-insulating structure is able to be arranged by interlacing a plurality of said foamed block boards with the cement insulated material.  
   
   
       3 . The fire-resistant and heat-insulating door/wall structure of  claim 1 , wherein the contact surface in-between the foamed block board and the cement insulated material is able to be an undulate rough surface.  
   
   
       4 . The fire-resistant and heat-insulating door/wall structure of  claim 1 , wherein the surface of the foamed block board has a fillister enabling cement insulated material to be filled therein.  
   
   
       5 . The fire-resistant and heat-insulating door/wall structure of  claim 1 , wherein the surface of the foamed block board covers a thin layer of the cement insulated material.  
   
   
       6 . The fire-resistant and heat-insulating door/wall structure of  claim 1 , wherein the thermally expansible material contained in the cement insulated material is able to be graphite.