Electronic device docking station

An electronic device expansion seat comprises a base and a clamping assembly. The base is used for placing an electronic device. The clamping assemblies are arranged on the two sides of the base. Each clamping assembly comprises an abutting element, a limiting element and a transmission element. The abutting element is arranged on the base and comprises a slope structure, the slope structure is provided with a front end and a rear end which are opposite in the first direction parallel to the short edge of the base, the slope structure has the thickness in the second direction parallel to the long edge of the base, and the thickness is gradually reduced from the rear end to the front end. The limiting element is arranged on the base. The transmission element is connected between the abutting element and the limiting element, and when the abutting element is switched from the covering position to the opening position, the transmission element drives the limiting element to move from the releasing position to th