Multi-stage internal heat insulation shading system for greenhouse and greenhouse containing same

Abstract

The invention relates to the field of environmental control of a sunlight greenhouse, in particular to a multi-stage internal heat insulation shading system for a greenhouse and the greenhouse containing the system. The internal heat insulation shading system comprises multi-stage internal heat-insulation shading screens, a screen pressing line and a screen supporting line, a plurality of pulling screen mechanisms, a driving shaft and a motor for driving the rotation of the driving shaft; each pulling screen mechanism comprises a driving steel cable and a reversing pulley, wherein one ends of the driving steel cables are wound on the driving shaft, and the other ends of the driving steel cables are wound on the reversing pulleys; one sides of the inner heat insulation screens are fixed, and the other ends of the inner heat insulation screens, as retracting and releasing ends, are respectively connected with the driving steel cables. The internal thermal insulation shading system not only has the advantages of simple structure, saving production cost, but also can flexibly regulate and control the indoor temperature and light according to the different needs of temperature and light by crops in different growing seasons and different time. Compared with traditional internal insulation and shading systems, the system provided by the invention has a greater application and promotion value.

Description

technical field [0001] The invention belongs to the field of solar greenhouse environment control, and in particular relates to a multi-stage inner heat preservation and sunshade system for a greenhouse and a greenhouse containing the inner heat preservation and sunshade system. Background technique [0002] At present, planting in solar greenhouses and plastic greenhouses has become the main mode of protected agricultural production in my country, and the planting area and output are increasing year by year. However, affected by the structure of solar greenhouses and plastic greenhouses, there are generally weak environmental regulation capabilities, such as: poor heat preservation at night, strong light and high temperature during the day. The emergence of the above problems not only restricts the further improvement of the product quality and output of existing solar greenhouses and plastic greenhouses, but also causes a waste of resources. How to solve the problem of ni...

AI Technical Summary

Problems solved by technology

[0003] At present, most of the greenhouse films are covered with sun-shading and heat-insulating materials, but considering the load-bearing capacity of the greenhouse films, the sun-shading and heat-insulating materials on the outside of most greenhouse films are very thin, or even only a few layers, which limits the sun-shading and heat-insulating capabilities of the greenhouse. limit, thereby affecting crop growth

Although existing greenhouses use internal sunshade insulation systems, the structure is cumbersome, the production cost is high, and there is only one complete piece of sunshade curtain, which cannot flexibly control the indoor temperature and light intensity

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