| 主权项 |
1. A panel assembly for a trench box comprising:
a frame having an interior defined between a first skin and a second skin, said first skin and said second skin being planar members that are mechanically affixed against opposite surfaces of said frame; a receptacle affixed within said interior of said frame, said receptacle having an interior, said receptacle being an annular member and having a first end and a second end, said first end opening through said first skin, said second end opening through said second skin; a first connector member having one end portion removably received into one of said first and second ends of said receptacle and an opposite end portion extending outwardly of said frame, said first connector member having a flange extending radially outwardly therefrom, said flange bearing directly against at least one of said receptacle and one of said first and second skins of said frame; a first pipe having an end affixed to said opposite end portion of said first connector member and extending outwardly therefrom, said receptacle having a hole extending diametrically thereacross, said one end portion of said first connector member having a pair of first holes extending diametrically thereacross, said pair of first holes of said first connector member being aligned with said hole of said receptacle, said first pipe having a hole extending axially diametrically thereacross, said opposite end portion of said first connector member having a pair of second holes extending diametrically thereacross in alignment with said hole of said first pipe, said end of said first pipe bearing against said flange; a first bolt removably extending through said pair of first holes of said receptacle and through said pair of first holes at said one end portion of said first connector member so as to affix said first connector member to said receptacle; and a second bolt removably extending through said hole of said first pipe and through said pair of second holes at said opposite end portion of said first connector member so as to affix said first pipe to said first connector member, said first bolt having a longitudinal axis extending transverse to a longitudinal axis of said second bolt; a second frame spaced apart from the frame and connected to the frame through the first pipe and first connector member; wherein the panel assembly is placed within a trench in the soil surface. |
