seat belt buckle

基本解释

If the buckle fails to jump out even just once the entire seat belt and belt buckle must be replaced.
带扣连接件只要有一次未能跳出，则必须更换整套安全带和皮带扣。
The invention provides a seat belt buckle suitable for an infant bearing device and an operation method thereof.
本发明提供一种婴儿承载装置用的安全带扣具及其操作方法。
ip.com
If the seat belt buckle lies across the frame of the child seat it will be under pressure and may spring open in an impact.
如果安全带的扣穿过儿童座椅的框架，在于它会受到压力，并可能影响春季开放。
blog.sina.com.cn