Locking spring bolt

The utility model discloses a locking spring bolt, include: casing and clamping device. The casing includes that spring bolt body and cladding are at this external shell of spring bolt. Clamping device rotates and installs on the casing. The safety belt passes from casing and spring bolt body, and at non -client location, the safety belt passes spring bolt body and casing with sharp mode, and clamping device rotates to the release position, clamping device and safety belt contactless, and at operating position, the safety belt is walked around clamping device and is rotated clamping device toclamping position, and clamping device contact safety belt presss from both sides tight safety belt. It is protruding wherein to form the arc on the casing, and clamping device installs in the arc arch, and clamping device rotates, and clamping device's tail end does not surpass the arc arch. This locking spring bolt can utilize clamping device to press from both sides tight safety belt for the safety belt is also fixed f