Mountainous area riverway hydrological monitoring protection device

The invention discloses a mountainous area riverway hydrological monitoring protection device and relates to the technical field of hydrological monitoring. A control hole, a middle plate and a wire fixing device are arranged on a floating body; a rod body is arranged in the control hole; a sealing plate is arranged on the middle plate; a middle rod is arranged on the sealing plate; a bearing plate is arranged on the middle rod on the sealing plate; a pull rope is arranged on the wire fixing device; a fixing block is arranged on the pull rope; a second plug is arranged on the fixing block; thewire fixing device is composed of a shell, a cover, a limiting block, a sleeve, a rotating rod and a wire rod, the shell is provided with the cover and a wire hole, the cover is provided with the limiting block, the limiting block is provided with the rotating rod and the sleeve, the rotating rod is provided with the wire rod, the wire rod is provided with a pull wire, and the pull wire penetrates through the wire hole i