If it is a utility model, according to your example, if the claim reads:
1, a mineral water bottle, which comprises a bottle body and a bottle cap, and is characterized in that a straw is arranged on the bottle cap, and the bottle cap is integrated.
As long as the other product contains all the features you advocate, it is infringing. Taking the above as an example, as long as it is a mineral water bottle with a structure of "including a bottle body and a bottle cap, and a straw is arranged on the bottle cap to form an integral structure with the bottle cap", no matter what the shape, material or other additional features of the bottle body are, it will be infringed. This is the structure protected by the utility model.
You can judge for yourself whether the other party's products contain all the technical features in your claim 1, or some different but equivalent technical features, such as changes in bolts and screws. Once there is more than one technical feature that is neither the same nor the same, there is no infringement.