Synchronous sliding mechanism, side hidden door system, and cabinet body with side hidden door system

A synchronous sliding mechanism (1) for a movement guide of a side door, characterized in that, comprising:

• a guide rail (12), a first connecting rod mechanism (13), and a second connecting rod mechanism (14), wherein:
• the first connecting rod mechanism (13) comprises a fixed base (134), a first connecting rod (131) and a second connecting rod (132);
• ends of the first connecting rod (131) and the second connecting rod (132) on a same side are pivotally connected to the fixed base (134);
• the first connecting rod (131) and the second connecting rod (132) are located on two sides of a horizontal central axis of the fixed base (134);
• and two sliding ends (133) on the guide rail (12) are provided on other ends of the first connecting rod (131) and the second connecting rod (132) respectively, and when the guide rail (12) reciprocates in a horizontal axial direction, the two sliding ends (133) are close to or far away from each other;
• the second connecting rod mechanism (14) comprises a sliding base (141), and a third connecting rod (143) and a fourth connecting rod (144) symmetrically provided in the horizontal central axial direction of the fixed base (134);
• the sliding base (141) and the fixed base (134) are located on a same side of the guide rail (12);
• and ends of the third connecting rod (143) and the fourth connecting rod (144) on a same side are pivotally connected to the sliding base (141), and other ends are pivotally connected to the first connecting rod (131) and the second connecting rod (132) respectively;
• the synchronous sliding mechanism (1) further comprises a horizontal shaft (11), wherein one end of the horizontal shaft (11) is fixed on the fixed base (134), and the sliding base (141) slides with respect to another end of the horizontal shaft (11).