Leisure chair frame with stepless adjustment and beach chair

Abstract

Leisure chair frame with stepless adjustment, comprising an armrest tube, a seat tube, a front foot tube, a rear foot tube, a backrest tube and a support foot tube rotatably connected to the backrest tube, and a stepless adjustment mechanism, characterized in that the stepless adjustment mechanism comprises an elastic return element, a connecting seat slidably mounted on the armrest tube, a rack fixedly connected to the armrest tube, and a locking arrangement arranged on the connecting seat, wherein the rear foot tube is rotatably connected to the front foot tube, wherein the front foot tube is rotatably connected to the connecting seat, wherein the armrest tube is rotatably connected to the backrest tube, and wherein the locking arrangement comprises a liftable toothed buckle.wherein the first convex tooth portion of the toothed buckle can be locked with the toothed groove of the rack and the movement of the connecting seat on the armrest tube is limited to form a stepless adjustment, wherein the elastic return element is arranged between the armrest tube and the connecting seat, the elastic force of the elastic return element being used to exert on the armrest tube and to drive the rebound of the backrest tube when the locking arrangement is unlocked to form a return setting.