Sleeve assembly, liquid leakage prevention assembly, liquid leakage prevention system, vehicle and liquid leakage prevention method

The invention relates to a sleeve assembly, a liquid leakage prevention assembly, a liquid leakage prevention system, a vehicle and a liquid leakage prevention method.The sleeve assembly is used for a battery thermal management system, the battery thermal management system comprises a liquid flow path connected between a battery pack and a carrier base, and the sleeve assembly comprises a plurality of pipe bodies which are coaxially and sequentially connected in a sleeving mode; a through hole is formed in the side wall of each pipe body, the multiple pipe bodies comprise communicating pipes and at least one sleeve, the communicating pipes form at least part of flow sections of the liquid flow path, the sleeves and the communicating pipes can rotate relatively, so that the sleeve assembly has a closed position and an open position, in the closed position, the through holes of the at least two pipe bodies are not communicated, and in the open position, the through holes of the at least two pipe bodies are not