Propeller, propeller kit, power assembly, power kit and unmanned aerial vehicle

A power kit, comprising:

• a first drive apparatus, a second drive apparatus, a first mounting member, a second mounting member and a propeller kit comprising a first propeller and a second propeller, one of the first propeller and the second propeller being a forward propeller, the other being a counter-rotating propeller, wherein
• the first propeller comprises a first hub and at least two blades connected to the first hub, the first hub being detachably mounted on the first drive apparatus by the first mounting member, a surface, facing the first mounting member, of the first hub being provided with a first fitting portion, a surface, facing the first hub, of the first mounting member being provided with a second fitting portion corresponding to the first fitting portion, the first fitting portion matching the second fitting portion;
• the second propeller comprises a second hub and at least two blades connected to the second hub, the second hub being detachably mounted on the second drive apparatus by the second mounting member, a surface, facing the second mounting member, of the second hub being provided with a third fitting portion, a surface, facing the second hub, of the second mounting member being provided with a fourth fitting portion corresponding to the third fitting portion, the third fitting portion matching the fourth fitting portion;
• and
• the first fitting portion does not match the fourth fitting portion, to prevent the first propeller from being mounted on the second drive apparatus by the second mounting member;
• and
• the third fitting portion does not match the second fitting portion, to prevent the second propeller from being mounted on the first drive apparatus by the first mounting member;
• and
• the first fitting portion is a first boss, the second fitting portion is a first groove, the third fitting portion is a second boss, the fourth fitting portion is a second groove, when the first propeller is mounted on the first drive apparatus, the first boss being inserted in the first groove, when the second propeller is mounted on the second drive apparatus, the second boss being inserted in the second groove;
• or
• the first fitting portion is a first groove, the second fitting portion is a first boss, the third fitting portion is a second groove and the fourth fitting portion is a second boss, when the first propeller is mounted on the first drive apparatus, the first boss being inserted in the first groove, when the second propeller is mounted on the second drive apparatus, the second boss being inserted in the second groove;
• the first mounting member is fixedly mounted on the first drive apparatus, the first propeller being detachably mounted on the first drive apparatus by the first mounting member;
• the second mounting member is fixedly mounted on the second drive apparatus, the second propeller being detachably mounted on the second drive apparatus by the second mounting member;
• and
• in the first drive apparatus and the second drive apparatus, the rotational direction of the drive apparatus corresponding to the forward propeller is the clockwise direction and the rotational direction of the drive apparatus corresponding to the counter-rotating propeller is the counterclockwise direction.