First of all, there is the issue of the timing of division of the case. Page 23 of the Examination Guidelines 2010 clearly states that “the applicant shall expire within two months from the date of receipt of the Patent Office’s notice of grant of patent rights on the original application at the latest. "If the divisional application does not comply with the above provisions, the examiner shall issue a notice that the divisional application is deemed not to have been filed and the case shall be closed." That is, you have to pay attention to the timing of division, if the timing of division does not meet the guidelines. There is no need to talk about anything else.
Secondly, I don’t know how you want to dismantle it? If you want to split a complete claim into several technical solutions and then file separate applications. This is generally not allowed, as it is suspected of exceeding the scope of the division. If your parent case consists of multiple sets of claims, this case can be divided, and you can take the initiative to apply for division. But I don't know why you can avoid the risk by doing this. If your patent lacks novelty and inventive step, the examiner will eliminate all your claims. If you divide the case, the patent office will not be able to grant you an authorization. If there is real novelty and creativity, and multiple sets of claims are unitary, then an invention patent is enough. If the infringement is finally determined, the decision will be based on the technical solution recorded in the claims. It has nothing to do with how many invention patents you have.