Snow-proof and hail-proof greenhouse

Abstract

The invention discloses a snow-proof and hail-proof greenhouse which comprises an arc-shaped bracket, an inner-layer film, an outer-layer film, banded airbags, a grating, a pressure valve, an inflating nozzle, an air supply main pipe, an air inlet branch pipe, a plug and an air pump, wherein the outer-layer film, the banded airbags and the inner-layer film form a greenhouse body and all are made of a polyvinyl chloride material; the outer surface of the inner-layer film is connected with a plurality of banded airbags which are paved along the greenhouse body through a track hot laminating technology; and the outer-layer film is connected with the outside of the banded airbags through a hot laminating technology. A double-layer thermal insulation film structure can be formed through inflation of the banded airbags in the weather of rain and snow and hail in winter, meanwhile, the banded airbags have a certain buffer effect, and the impact of the hail can be relieved; and centralized expansion and retraction of the banded airbags are controlled through the air pump in heavy snow weather, thereby generating vibration, so that the accumulated snow uniformly slips off and the problem of collapse of the greenhouse caused by excessive accumulated snow is solved.

Description

technical field [0001] The invention relates to the field of agriculture, in particular to a snow-proof and hail-proof greenhouse. Background technique [0002] With the emergence of high molecular polymers - polyvinyl chloride and polyethylene, plastic films are widely used in agriculture. In the early 1950s, Japan, European and American countries successfully applied greenhouse films to cover hotbeds, and then covered small sheds and greenhouses with good results. my country introduced polyvinyl chloride agricultural film in the autumn of 1955. It was first used to cover vegetables in small sheds in Beijing, and achieved the effect of early maturity and increased production. The greenhouse was originally a special equipment for vegetable production. With the development of production, the application of greenhouses has become more and more extensive. At present, greenhouses have been used for potted flower and cut flower cultivation; fruit tree production is used for cul...

AI Technical Summary

Problems solved by technology

[0003] The existing agricultural greenhouses are all single-layer film structures. The single-layer film has good light transmission, but the single-layer film is relatively fragile. In winter in our country, hail or heavy snow often o

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