| 摘要 |
The present invention relates to a device for opening and closing a ventilator of a vinyl greenhouse which facilitates maintenance by preventing a load applied on a motor and automatically controlling. An existing ventilator for a vinyl greenhouse has a problem that an operator fixates a string by pulling the string or releases the string by himself or herself for opening or closing a cover. To solve this problem, the device for opening and closing a ventilator of a vinyl greenhouse of the present invention includes: vertically-moving wires of which first ends are fixed to covers of the ventilators installed on the upper part of the vinyl greenhouse and second ends are fixed to horizontally-moving wires installed in the longitudinal direction of the vinyl greenhouse. The horizontally-moving wires are connected to a tension spring and fixed to a rotary shaft to be moved or returned by a motor which rotates forward and backward according to control signals of a control unit. The vertically-moving wire is connected to a tension spring and moved or returned along a roller which rotates. Therefore, the present invention can prevent a load applied on the motor by always maintaining constant tension as the tension springs are connected; and can manage the vinyl greenhouse by an unmanned system by automatically controlling the motor according to the indoor temperature of the vinyl greenhouse sensed by a temperature sensor unit. Furthermore, the present invention can be manufactured and installed at low costs and can be easily operated as a configuration of the device is simple. |
