2results about How to "Automatically adjust humidity" patented technology

The application relates to a stepped environment-regulating seedling raising device, and relates to the technical field of seedling raising devices. The device comprises a stepped support, a plurality of planting boxes are arranged at the upper end of the stepped support, a plurality of atomizing nozzles arranged in a linear array are fixedly connected to the bottom end of the outer wall of a water pipe, a plant growth lamp is rotationally connected in the rotating seat, two axial flow fans arranged in a mirror image are fixedly connected to the inside of one side of the shell, and an exhaust pipe is fixedly connected to the upper end of the shell. The application has the effects that the plant growth lamp, the atomizing spraying device and the axial flow fan are arranged, the spraying device sprays water mist into the shell through the atomizing nozzles to ensure the stability of humidity by the control device, and the illumination of the plant growth lamp provides sufficient light for seedlings, so that the seedlings can perform sufficient photosynthesis, the environment in the shell can be kept in the conditions suitable for the growth of the seedlings, and the seedling raising efficiency and quality are improved.

The utility model belongs to the technical field of greenhouse, disclose a kind of precision control ventilation opening automatic switch's greenhouse, including the greenhouse body, the cotton quilt being laid on the greenhouse body and the roller blind mechanism for controlling the winding and unwinding of cotton quilt, and the roller blind mechanism includes the roller blind rod for winding cotton quilt, and the length direction of greenhouse body is equipped with ventilation opening;At least one first positioner for identifying the position of roller blind rod is fixed on the greenhouse body, and the first positioner is located below 0~2 meters of ventilation opening, and the signal output end of first positioner is connected with the signal input end of roller blind mechanism.The utility model can accurately open or close ventilation opening, with high degree of automation, long service life, and is suitable for greenhouse automatic winding and unwinding cotton quilt.