The smooth and controlled opening and closing of a toilet seat is attributed to the sophisticated design between the damping shaft and the shaft sleeve. When the seat is lifted, motion is transmitted through the bearing, allowing the shaft and sleeve to rotate together. During this phase, the damping mechanism remains inactive, ensuring the cover can be raised effortlessly.

When the seat begins to descend, the intricate directional locking mechanism engages, causing the shaft and sleeve to disengage and the shaft to form a reverse lock with the sleeve base. Through the combined action of the damping mechanism and the damping grease, the toilet seat closes slowly and uniformly, achieving a smooth and steady descent.

Damping Grease

Damping grease is a specialty lubricant formulated from high-viscosity synthetic oil, specifically designed for mechanisms requiring cushioning, such as toilet seat hinges. It operates reliably over a wide temperature range of -30°C to 150°C and is safe, non-toxic, non-corrosive, and low in volatility.

More importantly, it provides excellent anti-wear lubrication and outstanding damping performance, effectively slowing the descent of the toilet seat during closure. This prevents harsh collisions between the seat and the toilet bowl, eliminates noise, reduces potential damage, and enhances the overall user experience. It also finds broader applications in other mechanisms requiring controlled cushioning.

In addition to its use in toilet seat slow-close systems, damping grease is also widely applicable to various mechanisms requiring cushioning and noise reduction, such as door and window hinges, furniture hinges, and rotating shafts. Whether applied to metal or plastic hinges, it provides long-lasting protection and ensures smooth operation, significantly enhancing the durability of the product and the overall user experience.