Greenhouse

Abstract

A greenhouse is handy and convenient to use. The greenhouse includes a frame assembly that stands on the ground and a dual protection assembly attached to the frame assembly to enclose the frame assembly. The dual protection member includes an airtight member and a mesh member. The mesh member is attached to the frame assembly to protect plants in the greenhouse from pests. The airtight member is attached to the mesh member to enclose the mesh member. Therefore, the airtight member provides protection for the plants in the greenhouse from the weather. When the airtight member is opened, the mesh member allows fresh air to flow into the greenhouse. Therefore, the plants in the greenhouse will be fully protected from not only the weather but also pests.

What is claimed is:  
     
         1 . A greenhouse comprising: 
 a frame assembly comprising 
 an adapter having a top, a bottom and a through hole defined from the top to the bottom of the adapter;  
 multiple ribs radially and pivotally attached to the bottom of the adapter around the through hole and each rib having a bottom tip opposite to the adapter;  
 a shaft with a top end and a tapered bottom end mounted under the adapter, the top end of the shaft facing the through hole in the adapter and a stub formed radially on the shaft near the top end of the shaft;  
 a draw string having two ends, one end attached to the top end of the shaft and the other end passing through and extending out of the through hole in the adapter;  
 a spreader sleeve securely attached to the shaft near the stub; and  
 multiple spreaders pivotally connecting the spreader sleeve to the ribs, where each spreader connects the spreader sleeve to one of the ribs; and  
   a dual protection assembly mounted on the frame assembly and the dual protection assembly comprising 
 a mesh member attached to the frame assembly and having a top, an outer periphery and an annular bottom edge, the top of the mesh member attached to the adapter and the annular bottom edge respectively attached to the ribs near the bottom tips; and  
 an airtight member attached to the outer periphery of the mesh member and having a top and an annular bottom edge, and the top of the airtight member attached to the adapter,  
   whereby the shaft is moved upward to move the spreader sleeve upward by pulling the draw string out of the top of the adapter, until the top end of the shaft extends out of the through hole to spread the greenhouse when the stub abuts the bottom of the adapter.    
     
     
         2 . The greenhouse as claimed in  claim 1  further comprising 
 a ground stake mounted on the tapered bottom end of the shaft and having a top opening and a tapered bottom end, and the tapered bottom end of the ground stake adapted to be pushed into the ground; and  
 multiple fasteners respectively mounted between the mesh member and the airtight member near the annular bottom edges of both the mesh and the airtight members and adapted to conveniently stick the mesh and the airtight members the together;  
 wherein the tapered bottom end of the shaft is inserted into the top opening in the ground stake such that the shaft is held vertically in the ground stake and the spread greenhouse stands on the ground.  
 
     
     
         3 . The greenhouse as claimed in  claim 2 , wherein a foldable anchor stake with a free end is pivotally mounted on each rib near the bottom tip, the free end protrudes relative to the bottom tip of the rib when the anchor stake is unfolded and is adapted to be pushed into the ground, and a tag is attached to the bottom tip of each rib.