Connecting pipe assembly and control valve assembly with connecting pipe assembly

A connecting pipe assembly, wherein the connecting pipe assembly comprises:

• a first connecting pipe, wherein the first connecting pipe comprises a first end and a second end opposite to each other;
• a connecting sleeve, wherein the first end of the first connecting pipe is disposed in the connecting sleeve, the connecting sleeve comprises a first end and a second end opposite to each other, the first end of the connecting sleeve is connected with an outer side wall of the first connecting pipe, there is a gap between an inner wall of a middle part of the connecting sleeve and the outer side wall of the first end of the first connecting pipe, and the gap forms an accommodating cavity;
• and
• a second connecting pipe, wherein one end of the second connecting pipe is connected with the second end of the connecting sleeve, and the one end of the second connecting pipe is disposed in the connecting sleeve;
• a wall thickness of the second connecting pipe is T, and a maximum dimension of the gap in radial direction of the first connecting pipe is t, 0<t<T;
• the one end of the second connecting pipe disposed in the connecting sleeve is abutted against the first end of the first connecting pipe, and the one end of the second connecting pipe disposed in the connecting sleeve, the outer wall of the first end of the first connecting pipe and the inner wall of the middle part of the connecting sleeve work together to seal the accommodating cavity;
• or
• a limiting structure is disposed on an inner wall of the connecting sleeve, the limiting structure is axially spaced apart from the first end of the first connecting pipe, and the limiting structure is used for limiting an axial position of the second connecting pipe in the connecting sleeve.