Hinge assembly and terminal product

A hinge assembly, comprising:

• a base, provided with a guide groove;
• a first swing arm, comprising a first hinge connecting part and a first rotating part that are firmly connected, wherein the first hinge connecting part and the first rotating part are rotatable relative to the base around a first axis between the first hinge connecting part and the first rotating part, and the first axis is fastened relative to the base;
• a second swing arm, comprising a second hinge connecting part and a second rotating part that are firmly connected, wherein the second hinge connecting part and the second rotating part are rotatable relative to the base around a second axis between the second hinge connecting part and the second rotating part, the second axis is fastened relative to the base, and the second axis is parallel to the first axis;
• and
• a slider, comprising a first fastening part, a second fastening part, and an extension part that are firmly connected, wherein the extension part is located in the guide groove, the first fastening part is movably connected to the first hinge connecting part, and the second fastening part is movably connected to the second hinge connecting part;
• and
• the first axis and the second axis are parallel to a first direction, and the extension part is movable in the guide groove in a second direction intersecting with the first direction, to drive the first swing arm and the second swing arm to rotate synchronously.