Three-tank pressure-stabilizing compensation non-negative-pressure water supply equipment

The invention discloses three-tank pressure-stabilizing compensation non-negative-pressure water supply equipment, and belongs to the technical field of water supply equipment, the three-tank pressure-stabilizing compensation non-negative-pressure water supply equipment comprises a main water tank and a mounting rack, and the main water tank and an auxiliary water tank are fixedly mounted on the mounting rack; according to the invention, by adopting the design of the two auxiliary water tanks and the main water tank, a three-tank system is formed, and the buoyancy component is arranged in the system, so that the problem that the water pressure is reduced due to the reduction of the water quantity can be effectively solved, the residual water source in the main water tank can still be smoothly output at normal pressure without influencing the use, and meanwhile, the automatic water replenishing process in the system can be realized; meanwhile, due to the fact that the one-way water guide nozzle is arranged in