Structure for reducing and preventing sound and vibration of service gate of water-filling gallery by means of natural ventilation

The utility model discloses a structure for reducing and preventing sound and vibration of a service gate of a water-filling gallery by means of natural ventilation, which comprises the service gate. The structure is characterized in that a breast wall is arranged at the downstream of the service fate, a ventilating horizontal pipe is connected to the downstream side of the breast wall, a groove-shaped negative pressure area is arranged on the other side of the breast wall opposite to the ventilating horizontal pipe and is communicated with the ventilating horizontal pipe through a ventilating supporting hole arranged on the breast wall, and a main ventilating pipe which is connected to the ventilating horizontal pipe is communicated with the external atmosphere. The structure is simple in construction, small in work quantity, convenient in maintenance and capable of effectively solving the problems of sound and vibration of the water-filling gallery. The structure is tested and passes engineering validation,