The oil seal of an intelligent toilet is a key precision component that ensures the stable operation of its internal mechanical system. Although hidden inside the device, it undertakes the core functions of preventing oil leakage and blocking the intrusion of water vapor/dust, directly affecting the service life and functional reliability of the intelligent toilet. The following is a detailed introduction from the aspects of structure, function, characteristics and selection:
The oil seal of an intelligent toilet is usually a rotary shaft lip seal, consisting of three parts:
- Sealing Lip: Made of elastic rubber (such as nitrile rubber, fluororubber), it is the key part in direct contact with the rotating shaft. It tightly fits the shaft surface through pre-tightening force, forming the first sealing barrier.
- Metal Skeleton: An annular metal sheet embedded in the rubber, providing structural support to prevent the oil seal from deforming under pressure or temperature changes, ensuring the fitting accuracy between the lip and the shaft.
- Spring (Some Models): An annular spring surrounding the lip, which continuously exerts radial force to compensate for the elastic loss of the lip due to wear or aging, extending the sealing life.
- Preventing Oil Leakage: The transmission components such as the automatic lid flipping motor and gearbox of the intelligent toilet need lubricating oil for lubrication. The oil seal can prevent lubricating oil from leaking from the gap between the shaft and the shell, avoiding contamination of the circuit or waste of oil.
- Isolating External Media: The bathroom environment is humid and may contain water vapor, residual cleaning agents, dust, etc. The oil seal can prevent these substances from invading mechanical components, avoiding wear, corrosion or short circuit of the circuit
