Adjustable cavitator structure having double layer retractable sheet

An adjustable cavitator structure having double layer retractable sheets, comprising a cavitator disposed at a head of an underwater vehicle, the cavitator comprises a cavitator body, a center of the cavitator body is connected to a center of the head of the underwater vehicle by means of a damper, a head fairing device is detachably connected to a front end of the cavitator body,

• wherein the cavitator body is of a double-layer structure comprising a first layer and a second layer, each of the first layer and the second layer is provided with a plurality of cavitator disc face retractable sheets which are uniformly distributed around an axis of the cavitator body and are slidably connected to the corresponding first layer or second layer,
• wherein the head of the underwater vehicle is provided with a buffer driving mechanism that drives the plurality of cavitator disc face retractable sheets to slide in a radial direction of the cavitator body, and the plurality of cavitator disc face retractable sheets and the cavitator body are spliced into a circle,
• wherein the buffer driving mechanism comprises a plurality of airfoil adjusting sheets, a number of the plurality of airfoil adjusting sheets is matched with a number of the plurality of cavitator disc face retractable sheets, the plurality of airfoil adjusting sheets are uniformly distributed around the axis of the cavitator body, each airfoil adjusting sheet corresponds to one of the plurality of cavitator disc face retractable sheet, a rear end of each airfoil adjusting sheet is hinged with an outer edge of the head of the underwater vehicle, a side of each airfoil adjusting sheet close to its rear end is hinged with one end of a first buffer retractable arm and a side of that close to its front end is hinged with one end of a second buffer retractable arm, the other end of the first buffer retractable arm is hinged with a front end face of the head of the underwater vehicle, the other end of the second buffer retractable arm is fixedly connected to an upper part of a corresponding cavitator disc face telescopic sheet thereof, a cross section of each airfoil adjusting sheet is airfoil shape, and two adjacent airfoil adjusting sheets are closely attached.