Roller blind device for greenhouse

Abstract

The invention provides a roller blind device for a greenhouse. The roller blind device for the greenhouse comprises a motor, a transmission shaft, a first universal joint, a stretchable rod, a second universal joint, a main shaft, an auxiliary shaft and a reeling shaft. The output end of the motor, the transmission shaft, the first universal joint, the stretchable rod, the second universal joint and the main shaft are connected in sequence, and the auxiliary shaft is connected with the main shaft and the reeling shaft through a non-parallel shaft gear pair. According to the roller blind device, torque is provided by the motor for the main shaft, the main shaft enables the torque to be transmitted to the reeling shaft through rotation of gears, a plastic thin film reels on the reeling shaft, and unreeling and reeling of a thin film roller blind for the greenhouse are electrically controlled. Meanwhile, the multiple universal joints are used in the roller blind device for compensating axial angle differences, the stretchable rod capable of transmitting the torque is further adopted to compensate the axial displacement, the reeling shaft of the roller blind device can depend on the outer contour of a greenhouse support in the reeling process to move, and the roller blind device is suitable for the roller blind of the greenhouse.

Description

technical field [0001] The invention relates to the field of vegetable and fruit planting, in particular to a greenhouse roller blind device used in greenhouse planting. Background technique [0002] The vegetable greenhouse is a frame-covered structure with excellent thermal insulation properties. Its appearance allows people to eat off-season vegetables. Generally, the vegetable greenhouse uses a bamboo structure or a steel structure frame, covered with one or more layers of thermal insulation plastic film, thus forming a greenhouse space. So that the shed has a good thermal insulation effect. [0003] In the vegetable greenhouses in the prior art, the thermal insulation plastic film arranged on the outside is often manually pulled from the bottom ends of both sides of the greenhouse, and finally covered above the framework of the greenhouse. On the one hand, the traditional method of stretching film in greenhouses is manually stretched, and the construction efficiency i...

AI Technical Summary

Problems solved by technology

On the one hand, the traditional method of stretching film in greenhouses is manually stretched, and the construction efficiency is low, and the saturation and integrity of the thermal insulation plastic film cannot be guaranteed by manual stretching; It is not the same. After the current vegetables that need heat preservation are planted, when the newly planted vegetables do not need heat preservation, the heat preservation plastic film on the greenhouse needs to be removed, or the temperature control of the same kind of vegetables needs to be constantly controlled. To switch between heat preservation and non-heat preservation, it is extremely inconvenient to manually install and disassemble the plastic film for greenhouse insulation.

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