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Large-span insulated plastic greenhouse

A plastic greenhouse, large-span technology, applied in greenhouse cultivation, climate change adaptation, gardening and other directions, can solve the problems of increasing the load of plastic greenhouse arches and reducing the safety of the greenhouse structure, so as to improve construction efficiency and quality, and avoid welding. , the effect of enhancing stability

Inactive Publication Date: 2017-09-12
HENAN AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, adding mechanical shutters will increase the arch load of the plastic greenhouse, reducing the safety of the shed structure

Method used

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  • Large-span insulated plastic greenhouse
  • Large-span insulated plastic greenhouse
  • Large-span insulated plastic greenhouse

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] This embodiment provides a large-span thermal insulation plastic greenhouse, such as figure 1 As shown, it includes some greenhouse arches, some columns 2, some crossbeams 15, plastic film 13 and mechanical roller shutter thermal insulation system.

[0038] Such as figure 2 and image 3 As shown, the bottom of the column 2 is fixed on the column fixing foundation pile 7 through the embedded part 10 , and the tops of two adjacent columns 2 are connected and fixed by the crossbeam 15 . The ground surrounded by the arched structure is filled with nutrient soil 1 in the greenhouse. The top of the arched structure is supported by the beam 15 and the angle between the top of the arched structure and the horizontal line is 12 degrees, and the angle between the bottom of the arched structure and the vertical line is 75 degrees; the plastic cladding The membrane 13 and the mechanical roller blind insulation system are arranged on the outside of the arched structure.

[0039...

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Abstract

The invention provides a large-span insulated plastic greenhouse. The large-span insulated plastic greenhouse comprises a plurality of greenhouse arches, a plurality of upright columns, a plurality of cross beams, a plastic film and a mechanical roller blind insulation system, wherein the tops of two adjacent upright columns are connected and fixed through one cross beam; each cross beam adopts a steel truss structure formed by fixedly connecting a rectangular steel upper chord, a rectangular steel lower chord and cross beam web members; each greenhouse arch adopts a C-shaped steel truss structure formed by fixedly connecting a C-shaped steel upper chord, a C-shaped steel lower chord and supporting web members; a fixed connecting plate is arranged at the top of each C-shaped steel truss structure; the two C-shaped steel truss structures are fixed to the cross beams or the upright columns in bilateral symmetry through the fixed connecting plates and tightening screws so as to form an arch-shaped structure. The large-span insulated plastic greenhouse has the advantages of high construction speed, high corrosion resistance, a good insulation effect and the like while the height and the width of the greenhouse are effectively increased so as to facilitate cultivation and management.

Description

technical field [0001] The invention relates to a planting greenhouse, in particular to a large-span thermal insulation plastic greenhouse. Background technique [0002] Plastic greenhouses are an important type of agricultural facilities in my country. They have the advantages of low cost, quick construction and wide application range. They can be used for early spring and autumn delayed production of horticultural crops. However, the existing plastic greenhouses are relatively simple in structure and poor in heat preservation, and it is difficult to ensure safe overwintering production of temperature-loving crops. The double-layer plastic greenhouse developed on the basis of the plastic greenhouse has improved thermal insulation performance. In the Jianghuai area of ​​my country, it can realize the winter production of crops resistant to low temperatures of 5°C to 10°C. In order to further improve thermal insulation performance, some researchers tried to cover thermal ins...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G9/14A01G9/22A01G9/24
CPCA01G9/14A01G9/227A01G9/241Y02A40/25
Inventor 张涛孙治强孙凯乐李明李胜利杨新芳朴凤植董晓星
Owner HENAN AGRICULTURAL UNIVERSITY
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