Novel composite crossarm for utility pole

Abstract

A novel composite crossarm for utility poles comprising a honeycomb structure filler inside the novel composite crossarm to increase bending resistance strength of the composite crossarm and improve crush resistance performance to prevent the composite crossarm from deforming when an insulator bolt is excessively screwed. Filling the composite crossarm with the honeycomb structure filler can also improve twisting resistance performance of the composite crossarm.

What is claimed is: 
     
         1 . A novel composite crossarm for utility poles, comprising a filler inside the crossarm, the filler is a honeycomb structure filler. 
     
     
         2 . The novel composite crossarm according to  claim 1 , wherein the honeycomb structure filler is placed in a transverse direction inside the crossarm. 
     
     
         3 . The novel composite crossarm according to  claim 1 , wherein the honeycomb structure filler is placed in a longitudinal direction inside the crossarm. 
     
     
         4 . The novel composite crossarm according to  claim 1 , wherein the honeycomb structure filler is adhered and fixed inside the crossarm. 
     
     
         5 . The novel composite crossarm according to  claim 1 , wherein the polyurethane rigid foam is injected into the honeycomb cells of the honeycomb structure filler. 
     
     
         6 . The novel composite crossarm according to  claim 1 , wherein the honeycomb cell of the honeycomb structure filler is a regular hexagonal cell. 
     
     
         7 . The novel composite crossarm according to  claim 1 , wherein the honeycomb cell of the honeycomb structure filler is a circular cell.