Abstract: A self-balancing scooter and a main frame assembly thereof are provided. The self-balancing scooter includes a first main frame and a cooperated second main frame. The first main frame includes a first connecting portion, the first connecting portion includes a first end surface, the first end surface defines a guide hole, and the guide hole is positioned between a center and an edge of the first end surface. The second main frame includes a second connecting portion, the second connecting portion includes a second end surface corresponding to the first end surface of the first connecting portion, the second end surface defines a conduit, the conduit is positioned between a center and an edge of the second end surface, the conduit is accommodated in the guide hole, and the first connecting portion is assembled and connected to the second connecting portion.

Abstract: A self-balancing scooter and a main frame assembly thereof are provided. The self-balancing scooter includes a first main frame and a cooperated second main frame. The first main frame includes a first connecting portion, the first connecting portion includes a first end surface, the first end surface defines a guide hole, and the guide hole is positioned between a center and an edge of the first end surface. The second main frame includes a second connecting portion, the second connecting portion includes a second end surface corresponding to the first end surface of the first connecting portion, the second end surface defines a conduit, the conduit is positioned between a center and an edge of the second end surface, the conduit is accommodated in the guide hole, and the first connecting portion is assembled and connected to the second connecting portion.

Abstract: A self-balancing scooter and a main frame assembly thereof are provided. The self-balancing scooter includes a first main frame and a cooperated second main frame. The first main frame includes a first connecting portion, the first connecting portion includes a first end surface, the first end surface defines a guide hole, and the guide hole is positioned between a center and an edge of the first end surface. The second main frame includes a second connecting portion, the second connecting portion includes a second end surface corresponding to the first end surface of the first connecting portion, the second end surface defines a conduit, the conduit is positioned between a center and an edge of the second end surface, the conduit is accommodated in the guide hole, and the first connecting portion is assembled and connected to the second connecting portion.

Abstract: A self-balancing scooter and a main frame assembly thereof are provided. The self-balancing scooter includes a first main frame and a cooperated second main frame. The first main frame includes a first connecting portion, the first connecting portion includes a first end surface, the first end surface defines a guide hole, and the guide hole is positioned between a center and an edge of the first end surface. The second main frame includes a second connecting portion, the second connecting portion includes a second end surface corresponding to the first end surface of the first connecting portion, the second end surface defines a conduit, the conduit is positioned between a center and an edge of the second end surface, the conduit is accommodated in the guide hole, and the first connecting portion is assembled and connected to the second connecting portion.

Abstract: The present application relates to a self-balancing scooter and a main frame assembly thereof. The self-balancing scooter includes a first main frame and a cooperated second main frame. The first main frame includes a first connecting portion, the first connecting portion includes a first end surface, the first end surface defines a guide hole, and the guide hole is positioned between the center and the edge of the first end surface. The second main frame includes a second connecting portion, the second connecting portion includes a second end surface corresponding to the first end surface of the first connecting portion, the second end surface defines a conduit, the conduit is positioned between the center and the edge of the second end surface, the conduit is accommodated in the guide hole when the first connecting portion is assembled and connected to the second connecting portion.

Abstract: The present application relates to a self-balancing scooter and a main frame assembly thereof. The self-balancing scooter includes a first main frame and, a cooperated second main frame. The first main frame includes a first connecting portion, the first connecting portion includes a first end surface, the first end surface defines a guide hole, and the guide hole is positioned between the center and the edge of the first end surface. The second main frame includes a second, connecting portion, the second connecting portion includes a second end surface corresponding to the first end surface of the first connecting portion, the second end surface defines a conduit, the conduit is positioned between the center and the edge of the second end surface, the conduit is accommodated in the guide hole when the first connecting portion is assembled and connected to the second connecting portion.

Abstract: The present invention provides a sludge-solidifying system, which comprises a mechanical operator and a mixing and solidifying device. The mixing and solidifying device comprises a rack unit, an actuating unit, a mixing unit and a curing-agent spraying unit for controlling to spraying curing agent. The sludge-solidifying system of the present invention has a high process speed for processing the sludge.