Toilet flushing systems installed in a toilet reservoir. A toilet reservoir stores a fluid that pours into a toilet bowl for carrying waste away from a toilet. Exemplary toilet flushing systems may include a flush sleeve having a sleeve bottom and sleeve top. The exemplary sleeve bottom may connect to a bottom of the toilet reservoir around a reservoir drain. The flush sleeve may be capable of being raised in a raised orientation such that the sleeve top is above the fluid in the toilet reservoir to prevent the fluid from entering the reservoir drain. Exemplary toilet flushing systems may include a flush sleeve actuator that lowers the sleeve top of the flush sleeve below a fluid level in the toilet reservoir to allow the fluid to flow through the flush sleeve into the reservoir drain.

The disclosed technology includes low flush toilet systems and methods of using low flush toilet systems. In one implementation, a low flush toilet system includes a first (or passive) tank, the first tank configured to preload a toilet rim, and a second (or pressurized) tank, the second tank including an internal air bladder, the internal air bladder configured to compress when exposed to water pressure from a supply line and configured to expand when a flush valve releases pushing water out of the second tank at a high flow rate and into a toilet for flushing. In some implementations, water flows from the pressurized tank at approximately 0.7-1.0 gallons per flush.

A flush toilet is provided comprising a storage tank, a toilet body including a discharge trap, and an overflow channel causing flush water to overflow when the flush water within the storage tank exceeds a predetermined water level, the overflow channel is provided to connect the storage tank and a discharge flow channel downstream of a bent conduit of the discharge trap containing sealed water formed inside, and the storage tank includes a reservoir provided in a part of the storage tank to constantly reserve flush water regardless of toilet flushing, and a connecting flow channel provided upstream of the overflow channel to connect the reservoir and the overflow channel.

A check valve includes a lower sealing element; an upper sealing element including a flexible part configured to seal the lower sealing element; and a supporting element including a plurality of hollow parts. The supporting element is configured to be mounted in the lower sealing element and mounted at a side where clean water flows into the lower sealing element.

The present invention discloses toilet flushing systems installed in a toilet reservoir. A toilet reservoir stores a fluid that pours into a toilet bowl for carrying waste away from a toilet. Exemplary toilet flushing systems may include a flush sleeve having a sleeve bottom and sleeve top. The exemplary sleeve bottom may connect to a bottom of the toilet reservoir around a reservoir drain. The flush sleeve may be capable of being raised in a raised orientation such that the sleeve top is above the fluid in the toilet reservoir to prevent the fluid from entering the reservoir drain. Exemplary toilet flushing systems may include a flush sleeve actuator that lowers the sleeve top of the flush sleeve below a fluid level in the toilet reservoir to allow the fluid to flow through the flush sleeve into the reservoir drain.

The disclosed technology includes low flush toilet systems and methods of using low flush toilet systems. In one implementation, a low flush toilet system includes a first (or passive) tank, the first tank configured to preload a toilet rim, and a second (or pressurized) tank, the second tank including an internal air bladder, the internal air bladder configured to compress when exposed to water pressure from a supply line and configured to expand when a flush valve releases pushing water out of the second tank at a high flow rate and into a toilet for flushing. In some implementations, water flows from the pressurized tank at approximately 0.7-1.0 gallons per flush.

Disclosed are a flushing method for a toilet, and a flushing toilet. A toilet bowl (1) is provided at the lower end thereof with a trap (4), a sewage receiving area (6), is provided on a side, of the upper end of the trap (4) and in an area with a certain height; a water flushing port (7) is provided in the upper end of the sewage receiving area (6); and a water storage cavity (5) is formed among a toilet body (2), the toilet bowl (1) and a toilet bottom (3), a water inlet system is arranged at the rear end of the water storage cavity (5), the water flushing port (7) is in communication with the water storage cavity (5), and a water valve and a water valve control device are arranged at an intake end of the flushing port (7).

A flush toilet is provided comprising a storage tank, a toilet body including a discharge trap, and an overflow channel causing flush water to overflow when the flush water within the storage tank exceeds a predetermined water level, the overflow channel is provided to connect the storage tank and a discharge flow channel downstream of a bent conduit of the discharge trap containing sealed water formed inside, and the storage tank includes a reservoir provided in a part of the storage tank to constantly reserve flush water regardless of toilet flushing, and a connecting flow channel provided upstream of the overflow channel to connect the reservoir and the overflow channel.