Plastic greenhouse with external heat preservation quilt stored underground

Abstract

The invention provides a plastic greenhouse with an external heat preservation quilt stored underground. The plastic greenhouse comprises a greenhouse framework, a greenhouse film, the heat preservation quilt, a roller shutter device and an underground storage device. The roller shutter device comprises a roller shutter machine and a roller shutter machine supporting frame. The roller shutter machine supporting frame is arranged at one end of the greenhouse framework. The roller shutter machine is connected with the roller shutter machine supporting frame. The roller shutter machine comprisesa quilt rolling shaft. The quilt rolling shaft is connected with the heat preservation quilt. Storage grooves are formed in two sides of the greenhouse framework. One end of the heat preservation quilt is fixed to the inner walls of the storage grooves. A groove cover is arranged above each storage groove. According to the plastic greenhouse, the heat preservation quilt can be rolled up and placedin the underground storage device when not used in the daytime, the heat preservation quilt is laid upwards from the east side and the west side of the plastic greenhouse along the greenhouse framework when heat preservation is needed in the greenhouse at night, the influence of a movable shading shadow body generated in the greenhouse when the heat preservation quilt is placed on the top is completely eliminated, the influence of illumination and temperature is reduced, and the range of the types of crops planted in the plastic greenhouse is enlarged.

Description

technical field [0001] The invention belongs to the technical field of greenhouse heat preservation, and in particular relates to a plastic greenhouse in which external heat preservation rolls are stored underground. Background technique [0002] With its advantages of easy construction, convenient use, and low investment, plastic greenhouses have become a practical protected cultivation facility that is commonly used. However, in the production of early spring, late autumn, and overwintering stubble, the solar greenhouse widely used in the northern region is still used for production due to temperature and light environment problems. In order to reduce the cost of facilities, improve the land utilization rate and the suitability of the annual production environment, the external thermal insulation plastic greenhouse that replaces the solar greenhouse has developed rapidly. The plastic greenhouse plus external insulation structure combines the advantages of plastic greenhou...

AI Technical Summary

Problems solved by technology

[0005] (2) The insulation is rolled up from both sides of the greenhouse and placed on the ridge of the greenhouse to form a concentrated load, which requires strengthening the strength of the skeleton, thereby increasing the cost of the greenhouse

And after the insulation is rolled up, a groove will be formed on the ridge of the greenhouse. After encountering rainy and snowy weather, the rainwater and snow accumulated in the groove are difficult to get rid of, which further increases the weight of the insulation quilt and reduces the weight of the insulation quilt. Insulation performance

[0006] (3) Since the insulation is placed on the ridge of the greenhouse for a long time, the greenhouse is forced to choose the bottom side ventilation, the height difference between the vent and the ground is small, and the natural ventilation effect cannot be maximized, which affects the microclimate in the greenhouse and is required for crop growth and development. conditions cannot be fully met

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