What kind of technical scheme can I apply for a utility model patent?

Only the shape, structure or combination of the product is put forward with a new technical scheme suitable for practical use, that is, the method or formula of the product does not belong to the object of the utility model, but the structure of the product can apply for a utility model patent, such as which devices are the hardware structure of the mobile phone, which components are the structure of the production equipment, which components are the structure of the biological detection device, and so on.