Decorated tree bracket base

A decorated tree bracket base, comprising a main bracket and an auxiliary bracket, wherein the main bracket comprises an upper sleeve, a lower sleeve, main supporting legs connected with the upper sleeve and main struts connected between the main supporting legs and the lower sleeve;

• the auxiliary bracket comprises a supporting tube shaft, auxiliary supporting legs connected with the supporting tube shaft and auxiliary struts connected between the supporting tube shaft and the auxiliary supporting legs;
• the upper sleeve and the lower sleeve are respectively sheathed on and rotationally mated with the upper and lower ends of the supporting tube shaft, so as to realize the rotation and closing effect of the main supporting legs and the auxiliary supporting legs;
• a locking seat is installed on the upper sleeve, through the locking seat, the angle between the upper sleeve or the lower sleeve and the supporting tube shaft can be locked;
• the locking seat has a sleeve structure, and an inserting through hole which is the same as a center hole of the supporting tube shaft is formed in the locking seat;
• a plurality of elastic clamping strips are formed on the lower hole edge of the inserting through hole, and the upper end of each elastic clamping strip is connected with the lower hole edge of the inserting through hole by a single point, so as to make the elastic clamping strips have a certain deformation property;
• the elastic clamping strips are mated with each other to form a connecting ferrule with a cylindrical structure, and the connecting ferrule has an inverted conical structure with a wide upper end and a narrow lower end;
• a locking assembly used for locking the upper sleeve and the supporting tube shaft is arranged on the locking seat;
• an inner cavity used for accommodating the locking assembly is formed in the inner cylinder wall of the locking seat, and an avoidance opening used for avoiding the inner cavity is formed in the upper sleeve;
• the locking assembly comprises a locking pin, a pressing spring and a locking key;
• the locking pin and the pressing spring are arranged in the inner cavity, the pressing spring is arranged on the upper end of the locking pin, and a downward pressure is provided by the pressing spring to the locking pin;
• the locking key is arranged outside the locking seat, the locking key is connected and mated with the locking pin, and the locking key is provided to realize the manual lifting of the locking pin;
• a locking groove is formed in the upper edge of the supporting tube shaft;
• when the locking groove is aligned with the avoidance opening, the lower end of the locking pin is pushed into the locking groove by the pressing spring, and the supporting tube shaft is locked and fixed with the upper sleeve.