Prefab external-wall structure

Abstract

The prefab external-wall structure is provided to increase the resisting strength of the external-wall against the external destruction force under the condition that the original wall strength is not damaged. The external-wall structure mainly comprises a main frame, a honeycomb structural board and an outer decorative wall-portion, wherein the main frame has on the two ends thereof a first receiving recess and a second receiving recess for embedding respectively therein the honeycomb structural board and the outer decorative wall-portion, and they are firmly stuck with silicone adhesive material. The main frame between the first and the second receiving recesses is formed therearound cut grooves for the purpose of fixing the external-wall structure of the present invention onto the wall of a building using fixing members.

1 . A prefab external-wall structure comprising at least a main frame, a honeycomb structural board and an outer decorative wall-portion, wherein 
 said main frame has on the two ends thereof a first receiving recess and a second receiving recess which is formed therein a deeper recess, said main frame is formed therearound cut grooves between said first and said second receiving recesses;    said honeycomb structural board is received in said first receiving recess;    said outer decorative wall-portion is received in said second receiving recess;    said honeycomb structural board and said outer decorative wall-portion are firmly stuck to said main frame with adhesive material to form said external-wall structure.    
     
     
         2 . The prefab external-wall structure as in  claim 1 , wherein, said honeycomb structural board is composed of two plates and a honeycomb core plate.  
     
     
         3 . The prefab external-wall structure as in  claim 1 , wherein, said main frame and said honeycomb structural board are made of aluminum.  
     
     
         4 . The prefab external-wall structure as in  claim 1 , wherein, said outer decorative wall-portion is made from a nontransparent plate.