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近年来随着我国塑料大棚和温室的不断增多,寒冬保温及夏暑时的降温是解决大棚和温室内小气候的一个重要问题。我国和世界一些国家大多采用二道幕(又称节能幕)来解决此问题。因此手动式或机动式打开或关闭保温幕的机构也相应地成为温室或大棚内必不可少的配套设施了。我国对拉幕机构的研制起步是比较晚的,同时也没有成功的先例,为此中国农业工程研究设计院建筑室拉幕机课题组在去年考查了一些进口温室的拉幕机构的基础上,重点对北京市四季青温室的国外引进温室进行了分析和消化,并结合我国温室的具体结构和机械工
In recent years, with the growing plastic greenhouse and greenhouses in our country, winter insulation and summer cooling is an important issue to solve the microclimate in greenhouse and greenhouse. Most of our country and some countries in the world use two screens (also called energy curtain) to solve this problem. So manual or motorized to open or close the thermal insulation mechanism has accordingly become an indispensable greenhouse or greenhouse facilities. China started the development of the curtain-drawing mechanism is relatively late, but also no precedent for success, for this reason China Agricultural Engineering Research and Design Institute of the curtain-room construction team to examine some of the last year on the basis of the curtain of the imported greenhouse, Focus on the Greenhouse in Beijing, the introduction of greenhouse abroad were analyzed and digested, combined with the specific structure of our greenhouse and mechanics