Inspection device for cavity-type object

An inspection device for a cavity-type object, comprising:

• a base;
• an inspection chamber rotatably disposed on the base, wherein the inspection chamber comprises:
• an inspection chamber body, wherein an inspection channel with two open ends is formed inside the inspection chamber body;
• an X-ray source disposed on a first side surface of the inspection channel;
• and
• a radiation detector disposed on a second side surface of the inspection channel opposite to the first side surface;
• a conveyor belt extending through the inspection channel between the X-ray source and the radiation detector, wherein the conveyor belt is configured to suspend and transport an object to be inspected;
• and
• a first driving device disposed on the base, wherein the first driving device is configured to drive the inspection chamber to rotate relative to the base, so as to change an angle between rays emitted by the X-ray source and the conveyor belt,
• wherein the conveyor belt is configured such that when the angle is equal to 90°, a distance between the conveyor belt and the first side surface is less than distance between the conveyor belt and the second side surface.