Trellis structure

A trellis structure comprising a frame body and a roof covered on the frame body, the frame body including multiple upright columns which define a range with a fixed area, the frame body further including multiple press beams being transversely connected with the upright columns along the periphery of the frame body, multiple press beams being connected with top face of the frame body to form the roof, multiple support rods being fixedly connected between the roof and the frame body for reinforcing the press beams, the periphery of the frame body and the roof being covered by a shading mesh, the press beam being hollow, a first side of the press beam being formed with a recessed insertion section, while a second side of the press beam being formed with an opening, two opposite sides of the opening respectively each having a inward extending hook section, via the insertion section, the press beam being outward fixedly connected on the frame body and the roof, the shading mesh being partially inserted in the insertion section of the press beam, a press bar being disposed in the insertion section, a clamping plate being inserted in the press bar for fixing the press bar to press the mesh, the clamping plate having a substantially V-shaped cross-section and two outward extending wing sections, outer faces of the wing sections being formed with several ribs, whereby the wing sections outward extend so that the ribs will press the press bar against the mesh to fix the mesh on the press beam, the trellis structure further comprising multiple fixing plates, two longitudinal sides of each fixing plate respectively having two perpendicularly extending engaging plates for engaging with the hook sections of the press beam, a bolt being perpendicularly fitted through a center of the fixing plate, a fixing nut being used in cooperation with the bolt.