Buckle for plastic drinking bottle

The utility model relates to a buckle device for a plastic beverage bottle. The utility model is composed of a C-shaped buckle body, a connecting piece, a buckling element, a frame-shaped hasp, a connecting pin bolt, a positioning nut, etc. which are connected, wherein, one end of the frame-shaped hasp can be buckled in a buckle slot of the C-shaped buckle body. When the utility model is used, the utility model can be buckled on the neck of the plastic beverage bottle, a pair of harnesses penetrates through a buckle hole of a buckle ear of the C-shaped buckle body, and the plastic beverage bottle which can be conveniently carried on shoulders does not need carrying by hands. The size of the inner diameter of the utility model can be adjusted, and therefore, the utility model can be suitable for the sizes of bottlenecks of various beverage bottles. The utility model has the advantages of reasonable structure, simple, fast, and convenient installation and disassembly, firm installation and buckling, and low production cost.