The utility model discloses a safety belt locking bolt structure and safety belt device, the safety belt locking bolt structure includes: the bolt main part, is provided with C type containing cavity, first belt groove and second belt groove in the inside, the both ends of C type containing cavity are provided with the sliding support part respectively, and one side of first belt groove is provided with locking limiting portion away from second belt groove, S type locking block is set up in C type containing cavity, and can move between locking position and release position, and the both ends of S type locking block are provided with the arc ear of sliding close -fit with sliding support part respectively, and the head outside surface of S type locking block and the
cavity wall sliding close -fit of C type containing cavity, spring is installed in C type containing cavity, is used to provide the reset force of S type locking block to the release position movement, wherein, the length of locking limiting portion is not less than the width of the
webbing of being set in first belt groove, can greatly reduce the force value difference of the middle part and both sides of
webbing when clamping, makes the uniform force of
webbing, and waistband force is more stable, the
support surface of sliding support part, the close -fit surface of arc ear, the C type
cavity wall of C type containing cavity and the outer convex
circular surface of S type locking block head are coaxial arrangement, constitute double centering structure, make S type locking block can not occur self -turning, and the clamping effect is better in the moment of collision.