| 主权项 |
1. Goggles for swimming or diving, comprising: a main body including two sides, with each of the two sides of the main body including a head strap coupling portion; a head strap turnaround component; a head strap including first and second ends, with an attachment portion formed on at least one of the first and second ends of the head strap, and located adjacent to an end edge of one of the respective first and second ends; the head strap coupled with the main body and wound around the head strap turnaround component; at least one buckle, separately disposed away from the main body and connected to the main body by the head strap, the buckle including first and second sidewalls, each of the first and second sidewalls including an upper edge, a lower edge spaced from the upper edge in a height direction, a front edge, and a rear edge spaced from the front edge in a length direction perpendicular to the height direction, a space defined between the first and second sidewalls, an eccentric axle extending between upper front portions of the first and second sidewalls, a front post and a rear post extending between the first and second sidewalls and parallel to each other, the front post separately located between the eccentric axle and the rear post in the length direction, the rear post located between the front post and the rear edge in the length direction, the eccentric axle located between the upper edges and the front post in the height direction, the rear post spaced from the upper edges of the first and second sidewalls in the height direction, a rear opening formed between the rear post and the upper edges of the first and second sidewalls, and a passage defined between the front and rear posts and extending in the height direction, wherein the first end of the head strap extends through the rear opening into the space of the at least one buckle, extends through the passage of the at least one buckle, and is wound around the head strap turnaround component to form a bend, the attachment portion of the head strap engages with the eccentric axle, the head strap includes an outer section and an inner section on two sides of the bend, the outer section includes the attachment portion, and the head strap and the at least one buckle are jointly movable as a whole in a same direction with a same distance, wherein a tightening force acting on the inner section of the head strap makes the inner section form a bend in the passage, and the inner section of the head strap presses against the front post and the rear post, retaining the head strap in place. |
