Adjusting base for door closer

An adjusting base for door closer, comprising:

• a fixing member configured to be fixed to a surface, wherein an upper surface of the fixing member is arranged with at least one protrusion;
• an adjusting member arranged on the upper surface of the fixing member in an adjustable manner, and configured to be connected to a door closer, wherein the adjusting member is formed with at least one adjusting hole for receiving the at least one protrusion;
• and
• at least one adjusting unit movably arranged on the adjusting member and configured to abut against the at least one protrusion to adjust a relative position between the adjusting member and the fixing member;
• wherein the at least one protrusion comprises a first protrusion and a second protrusion, the at least one adjusting hole comprises a first adjusting hole configured to receive the first protrusion and a second adjusting hole configured to receive the second protrusion;
• wherein the at least one adjusting unit comprises a plurality of first adjusting units movably arranged on the adjusting member and configured to abut against the first protrusion to adjust a relative position between the first protrusion and the first adjusting hole, and a plurality of second adjusting units movably arranged on the adjusting member and configured to abut against the second protrusion to adjust a relative position between the second protrusion and the second adjusting hole;
• wherein the adjusting base further comprises a stopping block arranged on the fixing member;
• wherein the stopping block is configured to abut against the second adjusting unit adjacent to the stopping block when the second adjusting unit adjacent to the stopping block is moved away from the second protrusion.