Защита с ключом (Key lock protection safety shield)

<svg width="800px" height="800px" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg"><path clip-rule="evenodd" d="M11.5 1L3 4V10.8184C3 14.0677 4.57865 17.1143 7.23317 18.9881L11.5 22L15.7668 18.9881C18.4213 17.1143 20 14.0677 20 10.8184V4L11.5 1ZM12 7C12.5523 7 13 7.44772 13 8V9.75H14.75C15.3023 9.75 15.75 10.1977 15.75 10.75C15.75 11.3023 15.3023 11.75 14.75 11.75H13V13.5C13 14.0523 12.5523 14.5 12 14.5C11.4477 14.5 11 14.0523 11 13.5V11.75H9.25C8.69772 11.75 8.25 11.3023 8.25 10.75C8.25 10.1977 8.69772 9.75 9.25 9.75H11V8C11 7.44772 11.4477 7 12 7Z" fill="#4F4F4F" fill-rule="evenodd"/></svg>