Slide rail base and auxiliary folding fixture

A slide rail base, comprising two first slide rails parallel to each other and two second slide rails parallel to each other, wherein the two first slide rails and the two second slide rails are respectively located in an upper surface and a lower surface and intersect with each other;

• each intersection point of the first slide rail and the second slide rail is provided with a slider, each slider on the intersection point is respectively slidably connected with its corresponding first slide rail and second slide rail, and the slider is capable of selectively fixing its position on the first slide rail and the second slide rail;
• wherein each slider comprises a bottom plate;
• the second slide rail is connected to the bottom plate by a first bolt, and when the first bolt is loosened, the bottom plate is capable of moving on the second slide rail;
• or the first slide rail is connected to the bottom plate by a second bolt, and when the second bolt is loosened, the bottom plate is capable of moving on the first slide rail.