Patent ID: 8842426

Claim:
An adjustable buffer, comprising: a supporting unit, having a main portion, a first assembling portion and a plurality of first locking structures, wherein an axis direction of the first assembling portion is parallel to a normal direction of the main portion, and the first locking structures are disposed at the main portion surrounding the first assembling portion and extend from the main portion towards the normal direction relatively far away from the main portion; a body, having a second assembling portion and a plurality of extension units disposed surrounding the second assembling portion, wherein the second assembling portion is pivoted to the first assembling portion, each of the extension units has a joining portion and an elastic body, and the elastic body is connected to the end of the joining portion relatively far away from the second assembling portion; a cover, having an opening and a plurality of second locking structures disposed correspondingly to the first locking structures, wherein the second locking structures pass through the body to lock the first locking structures of the supporting unit, and the first assembling portion of the supporting unit is located in the opening and contacts the extension units; and a fixing cap, assembled to the first assembling portion and pressing the second assembling portion of the body, wherein when the distance of the fixing cap at the first assembling portion relative to the main portion is changed, the relative distance between the elastic bodies of the extension units and the supporting unit is also changed.