Patent design drawings (inventions and utility models are accompanied by descriptions, and appearance designs are pictures or photos) do not require design dimensions, and must not have text descriptions, etc., and can have numbers or letters. Patent attachments The purpose of the diagram is strictly to assist understanding, and it is sufficient to be a schematic diagram (rough structure and connection relationship). Patent protection is a technical solution. As long as the technical solution is theoretically feasible, you can apply for a patent, regardless of whether a physical object can be produced or even whether the existing technical means can produce a physical object. So what you said is patentable.