Automatic sun-shading device for agricultural greenhouse surface

Abstract

The invention discloses an automatic sun-shading device for an agricultural greenhouse surface. The device comprises a greenhouse support, a net rolling device, a traction device, a pressing device, auxiliary supporting devices, a first pull wire and a second pull wire, the net rolling device and the traction device are arranged at the portions, close to the left end and the right end, of the greenhouse support respectively, and the pressing device is arranged at the portion, close to the center, of the greenhouse support. The left end and the right end of the first pull wire are connected with a sunshade net in the net rolling device and a reel in the traction device respectively, the left end and the right end of the second pull wire are connected with a reel in the net rolling device and a fastening device in the traction device respectively, and the sunshade net is laid above the fastening device. The left side and the right side of the pressing device are each provided with an inclined auxiliary supporting device, and the auxiliary supporting devices are arranged below a fastening assembly.

Description

technical field [0001] The invention relates to the technical field of agricultural production, in particular to an automatic sunshade device for the surface of an agricultural greenhouse. Background technique [0002] Vegetable and fruit cultivation greenhouses are widely used in agriculture for growing vegetables, cultivating flowers and fruits, and cultivating seedlings. Shade nets are mainly used in summer, especially in the south where the promotion area is large. The main function of covering the sunshade net is to prevent the exposure of the scorching sun, the impact of heavy rain, the harm of high temperature, the spread of diseases and insect pests, especially to prevent the migration of insect pests. However, in the existing greenhouse shading process, a layer of black net or black film will be laid on the top of the greenhouse by manually pulling the net, resulting in low efficiency in laying and installing the sunshade net; The ups and downs and instability mak...

AI Technical Summary

Problems solved by technology

However, in the existing greenhouse shading process, a layer of black net or black film will be laid on the top of the greenhouse by manually pulling the net, resulting in low efficiency in laying and installing the sunshade net; Ups and downs and instability make the greenhouse bracket bear a large pulling force from the sunshade net, and also cause damage to the structure of the sunshade net itself, causing holes or even collapse

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