Jomard is a set of equipment consisting of two lifting points and a power automatic winch at both ends. It is mainly used for the secondary lifting of electric projection screens in hotel banquet halls, as well as for the lifting and lowering of activity banners and banners in high-ceiling scenes. The product is small in size, short in height, light in weight, and driven by a dual-core motor with dual-belt linkage. It has low noise, strong power, reliable braking, and a double flexible traction structure provides double safety protection. The adaptive synchronization patent technology ensures that multiple devices remain in a state of synchronous operation at a uniform speed when they are coupled. The structure is compact and takes up little space, making it extremely suitable for use in hotel banquet halls with a dense network of air conditioning, fire protection, and electrical pipes in the ceiling.