Anti-disassembly cap, anti-disassembly pipe connecting device and air conditioner

The utility model discloses an anti-disassembly cap, an anti-disassembly pipe connecting device and an air conditioner. The anti-disassembly pipe connecting device comprises a pipe connector, a pipe connecting nut and an anti-disassembly cap, the pipe connecting nut is detachably installed on the pipe connector, the anti-disassembly cap wraps the periphery of the pipe connecting nut, a sliding groove and a sliding block are arranged on the anti-disassembly cap, and the outer contour of the sliding block is matched with the inner contour of the sliding groove. The outer contour of the anti-disassembly cap in the anti-disassembly pipe connecting device is cylindrical, so that disassembly by a wrench is not facilitated, and mistaken disassembly can be effectively prevented. The anti-disassembly cap is divided into a first body and a second body, the first body wraps the periphery of the connecting pipe nut, the second body can be installed above the first body in a sliding mode to wrap the connecting pipe nut, a