Needle valve mounting structure

The utility model discloses a needle valve installation structure which comprises an installation support and a pipe clamp. The mounting bracket is in a step shape and is provided with a first flat plate part, a first step part and a second step part which are connected in sequence; the first flat plate part is provided with a fixing hole; the first step part is provided with a first step surface parallel to the first flat plate part; the second step part is provided with a second step surface parallel to the first step surface; the pipe clamp is detachably fixed on the second step surface; the pipe clamp is provided with a clamping opening which is used for inserting the needle valve and is adjustable in tightness; and the distance between the first step surface and the second step surface is suitable for enabling the first step surface not to be in contact with the outer end of the needle valve when the needle valve is inserted into the pipe clamp. According to the needle valve installation structure, the i