Abstract: The present disclosure relates to an automatic patrol inspection and intelligent erosion defect detection method and apparatus for a flood discharge tunnel, and belongs to the technical field of patrol inspection and defect detection. The method includes: constructing a flood discharge tunnel erosion defect database; constructing a flood discharge tunnel erosion defect analysis and evaluation standard and early warning threshold; performing automatic patrol inspection; and performing image analysis processing and intelligent recognition model training. According to the present disclosure, a condition of the flood discharge tunnel can undergo automatic patrol inspection, an erosion impact degree can be rapidly recognized and determined, the downstream life safety are not in danger during flood discharge, and a patrol inspection efficiency and a detection efficiency can be noticeably improved.

Abstract: The present invention discloses a Fire-fighting water cannon comprising: a first motor assembly including a first housing, a first stator assembly, a first rotor assembly and a central shaft; both ends of the first housing are respectively provided with a first end cover and a second end cover, the first end of the first stator assembly is connected with the second end cover, the first rotor assembly is sleeved on the outside of the first stator assembly, and the first rotor assembly is rotatably connected with the first housing; the cannon head assembly including a first cannon head and a second cannon head, the first cannon head is connected with the first stator assembly, the second cannon head is sleeved on the outside of the first cannon head, and the second cannon head is threadedly connected with the first rotor assembly, the first cannon head is provided with a first anti-rotation device; the cannon core assembly is arranged on the central axis and cooperates with the cannon head assembly.

Abstract: The present invention discloses a Fire-fighting water cannon comprising: a first motor assembly including a first housing, a first stator assembly, a first rotor assembly and a central shaft; both ends of the first housing are respectively provided with a first end cover and a second end cover, the first end of the first stator assembly is connected with the second end cover, the first rotor assembly is sleeved on the outside of the first stator assembly, and the first rotor assembly is rotatably connected with the first housing; the cannon head assembly including a first cannon head and a second cannon head, the first cannon head is connected with the first stator assembly, the second cannon head is sleeved on the outside of the first cannon head, and the second cannon head is threadedly connected with the first rotor assembly, the first cannon head is provided with a first anti-rotation device; the cannon core assembly is arranged on the central axis and cooperates with the cannon head assembly.