Installation base

An installation base, comprising:

• a main body, comprising a first surface and a second surface on two opposite sides, the first surface being provided with a magnet piece;
• and
• a release member, arranged on the second surface of the main body, the release member comprising a pressing part, a pivoting part and an operating part, the pivoting part pivotally connected to the main body in a first direction, the pressing part extending from the pivoting part in a second direction and protruding from the main body, a length of the pressing part in the second direction being greater than a thickness from the first surface to the second surface of the main body, wherein the second direction is perpendicular to the first direction, and the operating part extends from the pivoting part in the second direction toward a direction opposite to the pressing part;
• wherein an end part of the pressing part is away from the pivoting part, and the end part is shaped as a rounded angle or a sharp angle;
• wherein a portion from the pivoting part to the end part is defined as a first section, a portion from the pivoting part to the operating part is defined as a second section, and a length of the second section is greater than or equal to a length of the first section.