Disconnected inner tube and tire

An inner tube having a disconnected pattern, comprising:

• an inner tube body having an elongated shape, wherein:
• two ends of the inner tube body having the elongated shape are respectively disposed with a first joint and a second joint,
• the two ends of the inner tube body having the elongated shape are single-layer structures defined by an air cavity in the inner tube body having the elongated shape,
• free ends of the first joint and the second joint respectively comprise a first closed surface and a second closed surface configured to be plugged with each other,
• one end of the two ends extends to define a sleeve along a length direction of the inner tube body having the elongated shape,
• the first closed surface and the second closed surface are plugged by the sleeve to enable the inner tube body having the elongated shape to be spliced to define the inner tube linked end-to-end,
• the second closed surface comprises a groove,
• the groove and the inner tube body having the elongated shape are connected by a limiting surface,
• an inner wall of the groove and an inner wall of the limiting surface are connected by a first circular arc-shaped corner,
• the inner wall of the limiting surface and a side wall of the inner tube body having the elongated shape are connected by a second circular arc-shaped corner,
• the first closed surface comprises a first hollow plug,
• the first hollow plug corresponds the groove,
• the first hollow plug and the side wall of the inner tube body having the elongated shape are connected by a first limiting matching surface,
• the limiting surface defines a first planar annular ring,
• the first limiting matching surface defines a second planar annular ring,
• when the first hollow plug and the groove are connected by inserting the first hollow plug into the groove to define a plug-in relationship, the first limiting matching surface abuts the limiting surface to be positioned along a plug-in direction, and
• after the inner tube body having the elongated shape is inflated, the first hollow plug, and the groove are radially expanded, the first closed surface and the second closed surface circumferentially abut each other and are encompassed and positioned by the sleeve, the limiting surface and the groove are stretched to be concave arc-shaped surfaces, the first hollow plug and the first limiting matching surface are stretched to be convex arc-shaped surfaces, and an arc-shaped cooperation between the concave arc-shaped surfaces and the convex arc-shaped surfaces is encompassed by the sleeve.