The utility model relates to a container is used in shipping, including the container body, the bottom is provided with the hollow base in the container body, be provided with two at least slide railsin the base, the slide rail sets up along container body width direction, the opening has been seted up on the base directly over the slide rail, it is provided with the slider to slide on the sliderail, wear out the outer gag lever post of base on the slider on being provided with in the follow opening, the gag lever post outside is connected with the telescopic link, the gag lever post inboardis provided with the open slot that a plurality of distributes along its length direction, be provided with contact switch in the open slot, contact switch links to each other with the telescopic link, the utility model discloses a control telescopic link extension drives the gag lever post and moves, and gag lever post and object contaction formula, article touch contact switch, and contact switch control telescopic link stops the extension, accomplishes fixed spacing to article both sides, prevents effectively that article from sliding or toppling over in the container, avoids the article damage of colliding with.