Multidirectional rotating structure of office chair armrest

The utility model provides a multidirectional rotating structure of office chair armrests, and relates to the technical field of office chair accessories, left and right clamp springs and left and right positioning blocks are correspondingly embedded in a fixing groove, a round groove is formed in the bottom of a sliding upper base, a nut penetrates through the round groove, and rotating notches are formed in the front end and the rear end of the inner wall of the sliding upper base. A rotary fixing block is embedded in the sliding upper base, the rotary fixing block is integrally rhombic, the two ends of the rotary fixing block are wedge-shaped ends, the two sides of the rotary fixing block are not smooth side edges, the rotary fixing block is installed through bolts and nuts, the rotary fixing block can rotate around the bolts, and fixing grooves are formed in the wedge-shaped ends as well. A rotating gear clamping spring and a front-back positioning block are embedded in the fixing groove, and the front-ba