A kind of convenient chair safeguard construction,Including a sitting frame,A pair of of elasticity block piece,One backrest,Two arm-rest frames,2 first,Before second ring set part and two,Hou foot prop,Formed convenient chair and therebetween pivot joint be it is deployable,It folds； Its characteristic in what,The elasticity block piece of the tube two sides end of the what sitting frame is set,The elasticity block piece includes an elastic element and one is located at convex gear above the elastic element,Through those convex gears can what convenient chair expansion when for the backrest two sides tube body against with limitation cannot fold,Those convex gears, which are pressed Hou, to enable convenient chair fold convenience,Those the second ring set parts for wearing and being coated and fixed those the first ring set parts being arranged below those arm-rest frames in front of a tube body and the setting of Hou side respectively are recycled,Convenient chair stability can be promoted,And by for plastic cement those first,Second ring set part,For before those,The expansion of Hou foot prop,Abrasion can be reduced when folding between those arm-rest frames,Make convenient chair that can have preferably expansion support and stablize safety.一種方便椅安全結構，包括一坐架、一對彈性擋件、一背架、二扶手架、二第一、第二環套件及二前、後腳架，形成方便椅且其間樞接為可展開、折收；其特徵在於，設置於該坐架的管體兩側末端的該彈性擋件，該彈性擋件包括一彈性元件及一設在該彈性元件上方的凸擋，透過該些凸擋可於方便椅展開時供該背架兩側的管體抵靠以限制不能折收，該些凸擋被按壓後可令方便椅折收便利性，再利用分別穿套並包覆固定在該些扶手架下方一管體前方設置的該些第一環套件與後方設置的該些第二環套件，可增進方便椅穩固性，並藉為塑膠製的該些第一、第二環套件，供該些前、後腳架展開、折收時可與該些扶手架間減少磨耗，使方便椅可具較佳展開支撐及穩定安全性。
