嵌套猫头鹰旋转木马2不工作

我有两个猫头鹰旋转木马 like
这是html结构

    <li class="product">
        <ul class="product-image-slider owl-carousel">
            <li>image 1</li>
            <li>image 1</li>
        </ul>
        content here..
    </li>
    <li class="product">
        <ul>
            <li>1</li>
            <li>1</li>
        </ul>
        content here..
    </li>
    <li class="product">
        <ul>
            <li>1</li>
            <li>1</li>
        </ul>
        content here..
    </li>  
</ul>

$(document).ready(function() {
            var outerCarousel = $('.product-lists.owl-carousel');
            outerCarousel.owlCarousel({
                loop: true,
                center: true,
                items: 1,
                nav: false,
                dots: false
            });

            var innerCarousel = $('.product-image-slider.owl-carousel');
            innerCarousel.owlCarousel({
                loop: true,
                center: true,
                items: 1,
                nav: false,
                dots: false,
                /* mouseDrag: false,
                touchDrag: false,
                pullDrag: false */
            });

        });

但当我拖动旋转木马内部(产品图像滑块),然后父旋转木马也拖动。 我试图禁用或阻止父旋转木马,但无法工作。就像

innerCarousel.on('drag.owl.carousel', function(event) {
        outerCarousel.data('owl.carousel').settings.touchDrag = false;
        outerCarousel.data('owl.carousel').settings.mouseDrag = false;
    });
    innerCarousel.on('dragged.owl.carousel', function(event) {
        outerCarousel.data('owl.carousel').settings.touchDrag = true;
        outerCarousel.data('owl.carousel').settings.mouseDrag = true;
    });

我该怎么办谢谢