| 摘要 |
This invention discloses a shelter used to protect plants or crops from damage by animals and adverse environmental conditions, which comprises a framework; at least one ridge pole supported by the framework; at least one pulley block supported in the ridge pole; at least one network frame, one side of which is hinged in the framework, the opposite side of which is hoisted by the pulley block; and a water-proof sheet which is supported by and covers and network frame; whereby the water-proof sheet can be hoisted up to the elevated position for cultivating plants and lowered to cover the crops for preventing them from being blown away by wind.
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