Water flow impact pressure sensor with desilting function

The invention relates to a water flow impact pressure sensor with a desilting function, and the sensor comprises a sensor pedestal, the middle of one side of the sensor pedestal is provided with a channel, the other side of the sensor pedestal extends outwards, and an opening is formed in the end part of the sensor pedestal; the rear cover is installed in the opening, an installation space is formed in the rear cover, a sensor core body is installed in the installation space in a sealed mode at the position corresponding to the channel, a circuit board which is fixed to the inner wall of the installation space and electrically connected with the sensor core body is arranged around the sensor core body, and a cable of the circuit board is led out through the rear cover in a sealed mode; the protective cap is installed in the channel in a sealed mode, a gap area is reserved between the protective cap and the sensor core body, a plurality of inflow channels are formed in the portion, facing the sensor core body,