Sleeve assembly and endoscope device

An endoscope device, comprising:

• a sleeve assembly, wherein the sleeve assembly includes:
• an outer sleeve having a first opening and a second opening that communicate with each other, wherein the outer sleeve is configured to define a central axis, and the central axis passes through the first opening and the second opening;
• and
• an inner sleeve detachably disposed on the outer sleeve, wherein the inner sleeve includes an annular component, the annular component is disposed outside the outer sleeve and surrounds the outer sleeve, and the inner sleeve is disposed inside the outer sleeve and closely attached to an inner wall of the outer sleeve;
• wherein the inner sleeve is configured to be operated to rotate relative to the central axis, the inner sleeve includes a body, a first end portion, and a second end portion, the first end portion and the second end portion are respectively connected to two ends of the body, a first clamping slot is formed on a top end surface of the first end portion, and a second clamping slot is formed on a side opposite to the top end surface of the first end portion;
• wherein, when the inner sleeve is disposed on the outer sleeve, the second clamping slot clamps on a first opening edge of the outer sleeve;
• and
• a lens assembly disposed in the inner sleeve.