Assembly structure of dust cap and steering device including the same

A steering device comprising:

• a rack housing including an assembly part which is formed to extend upward from a body, in which a rack bar is accommodated, and is open such that a steering shaft is inserted therethrough;
• and
• an assembly structure of a dust cap coupled to the assembly part,
• wherein:
• the dust cap includes a body provided in a hollow tube shape through which the steering shaft passes, a first coupling portion bent to extend outward from the body and press-fitted onto an outer circumferential surface of the assembly part, and a second coupling portion provided to be spaced a certain interval from the first coupling portion and inserted into the assembly part;
• and
• the second coupling portion is provided such that, when assembled to the assembly part, a gap is formed between the second coupling portion and an inner surface of the assembly part.