About AUTO GATE.
Non-powered, maintenance-free, reduced costs.
Environmentally friendly gate with consideration of landscape.
"NHK WORLD Science", broadcast on December 10, 2013
The mechanism of automatic opening and closing gate.
The balance weight installed above the gate creates a mechanism with small gating power.Accordingly,the gate opens and closes automatically even when there is little water-level fluctuation.
The axis of rotation is set above and in front of the gate body.This helps keep the gate open even under the initial condition when the water level is low, so water discharge is not hindered even when the water is shallow.
A float is installed on the inner water side of the gate body. Accordingly, if the inner and outer water levels rise simultaneously, buoyancy acts along with the weight to quickly close the gate.
| Normal times | The gate remains stationary where the torque at the center of gravity of the gate body (opening direction) and the torque at the center of gravity of the balance weight (closing direction) are equally balanced. |
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| When inner water is discharged | The balance weight helps the gate to open by principle of leverage downward and the float also helps the gate to open by principle of buoyancy. |
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| When backflow occurs | When outer water levels rises, causing backflow pressure to increase, both the balance weight and the float begin to work to close to the gate. |
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| A full-scale experimental device |
The automatic opening and closing operation of the Auto Gate was confirmed by making a full-scale experimental device.
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We carried out comprensive experiments using model gates.
If you would like to receive more information, please e-mail.
sales-div@asahi-grp.co.jp
AUTO GATE and AUTO GATE Jr are trademark of Asahi Innovex Co., Ltd.