Abstract: A flush toilet includes a toilet main body and a tank device. The tank device includes a water supply unit a storage tank, a pump, and a suction pipe. The water supply unit is configured to supply the flush water the storage tank while the pump is being driven. The storage tank includes a large tank section that includes a lowest bottom surface of the storage tank and that is a large-capacity side, and a small tank section that is a small-capacity side. The storage tank main body includes a water supply port on an upper surface of the storage tank. The water supply unit is configured to supply the flush water to the storage tank through the water supply port. The water supply port of the storage tank and an upstream-end opening of the suction pipe are both provided on a large tank section side.

Abstract: A pressurized tank assembly and method. The pressurized tank assembly may include a first siphon tank, a second siphon tank, an inlet assembly, and a discharge assembly. The first tank and second tank may be arranged vertically within the base of the toilet. The first tank and the second tank may be arranged with endcaps located at the top of each tank. The first tank and the second tank may include siphon tubes to assist in delivering fluid flow from the inlet assembly to the discharge assembly.

Abstract: A manual lubrication system for a manual toilet flush pump on a manual toilet of the type used in boats and RV's. The lubrication system comprises a lubricant reservoir affixed in parallel to the housing of the manual toilet flush pump laterally opposite the toilet, with a movable lubricant pump head located below the operating handle of the manual toilet flush pump and having an operating axis generally parallel to the that of the manual toilet flush pump's operating handle. A positive manual shutoff normally keeps the lubricant reservoir isolated from the normal in-flow of water to and through the manual toilet flush pump except when lubricant is being manually added during a maintenance procedure.

Abstract: A flush toilet includes: a water supply channel that allows flush water to be supplied from a flush water storage tank to a rim spout port and a jet spout port; and a switching device that switches a water supply path so as to execute a first flushing process of spouting the flush water in the water supply channel from the rim spout port and after that, execute a second flushing process of spouting the flush water in the water supply channel from at least the jet spout port. The switching device includes a switching valve body that operates by receiving the water pressure of the flush water pressurized by a pressure pump. This switching valve body performs switching to a water supply path that allows the first flushing process or the second flushing process to be executed according to the water pressure generated by the pressure pump.

Abstract: The present disclosure relates to the technical field of toilet equipment, particularly to a toilet. The toilet includes a toilet body, a water tank, an air isolation device, and a water pump, wherein the toilet body is provided thereon with a spout directly facing a sewage exit; the water pump is configured to draw water from the water tank, a water outlet of the water pump is in communication with the spout of the toilet body via the air isolation device, and the air isolation device is configured to block reverse flow of sewage from the spout of the toilet body to the water tank.

Abstract: A waterless urinal cartridge, for waterless urinals, includes a housing and a cover. The housing includes a waste reservoir configured to hold a predetermined volume of wastewater, and a drainage aperture configured so that an amount of wastewater exceeding the predetermined volume of wastewater flows through the drainage aperture to exit the housing. The cover is coupled to the housing and includes a sealing fluid reservoir having walls that define the waste reservoir and the drainage aperture, the walls of the sealing fluid reservoir form a containment perimeter with an open bottom so as to contain a sealing fluid floating on top of the predetermined volume of wastewater, and a plurality of fluid passages direct wastewater from the fluid bowl to the sealing fluid reservoir. The waste reservoir includes a fluid flow control feature that restrains wastewater movement within the waste reservoir in response to a change in vehicle dynamics.

Abstract: Embodiments of the present invention provide systems and methods for disposal of liquid and food into a sink basin. The disclosed system cooperates with and delivers the received waste material to the main waste system on-board the vehicle. This is typically an aircraft waste tank. The system does not require a manual flush, but includes a sensor system that activates drainage of the holding line when the liquid and/or other waste material reaches a certain level therein. The disclosed system combines the functionalities of a common galley sink and a galley waste disposal unit, but occupies only the space envelope of an existing galley sink. The use of an existing galley sink means that no additional space on the countertop is required.

Abstract: A toilet bidet system for use on a passenger transportation vehicle. In particular, there is described a bidet rinse ring that converts a standalone toilet to a combined toilet and bidet system. Designs find particular use onboard passenger transportation vehicles, such as aircraft. Such systems benefit from efficient space management and generally cannot support a separate toilet and bidet. The bidet rinse ring described herein may come factory-mounted on the toilet. In other examples, the bidet rinse ring may replace a standard rinse ring in order to retrofit an existing toilet.

Abstract: An apparatus for controlling the waste outlet of a toilet includes, according to an implementation, a motor comprising a Hall effect sensor that detects the rotation of the motor and generates a position signal in response thereto; a mechanical actuator coupled to the motor; a door coupled to the mechanical actuator, wherein the door is disposed at the waste outlet of the toilet; logic circuitry that receives the position signal, generates a control signal to move the door based at least in part on the position signal, and transmits the control signal to the motor. The motor operates according to the control signal to drive the mechanical actuator to move the door.

Abstract: A water-saving accessory for a toilet includes a basin, a three-port valve, and first and second lengths of tubing. The basin has inlet and outlet ports and is configured to be coupled to the toilet bowl or toilet seat. The valve is configured to be coupled to a fluid supply line. The first length of tubing is configured to be attached at a first end to the valve and at a second end to the basin inlet port. The second length of tubing is configured to be attached at a first end to the basin outlet port. The valve can be configured to be coupled to a flush line for the toilet bowl such that fluid is normally supplied from the fluid supply line to the flush line, and to be actuatable to divert fluid from the fluid supply line to the first length of tubing.

Abstract: A medical toilet bed system including a bed frame defining a bed frame aperture and a cover coupled to the bed frame and operable to translate from an open position exposing the bed frame aperture and a closed position substantially sealing the bed frame aperture. The medical toilet bed system also includes a medical toilet configured to be disposed underneath the bed frame having a toilet seat defining a toilet seat aperture configured to substantially align with the bed frame aperture, a toilet bowl coupled to the toilet seat, and an expandable lifting member coupled to the toilet bowl. The medical toilet bed system also includes an elongated medical toilet railing disposed a distance below the bed frame and above a ground surface for receiving the medical toilet thereon.

Abstract: A waste disposal apparatus for an aircraft comprising a basin for receiving liquid and/or solid pollutants, comprising a lid for closing off the basin, comprising a feed arrangement for supplying an air-water mixture, wherein the feed arrangement has an air-water mixing device for providing the air-water mixture and a distributing device for distributing the air-water mixture in the basin, and comprising a lead-off arrangement for leading off the effluent formed from the air-water mixture containing the pollutants, wherein the lead-off arrangement opens out into an outlet from the basin and the lead-off arrangement can be subjected to an underpressure, so that the air-water mixture, when the lid is closed, is sucked into the basin via the distributing device is proposed, wherein the air-water mixing device has an air duct and a nozzle for the dispensing of water and the water can be subjected to an overpressure and wherein the distributing device and the basin are jointly designed such that the water-air mixt

Abstract: An aircraft auxiliary power unit (APU) flexible and fireproof drainage device including a bellows which receives leakage fluids from an APU engine; a drain pipe which transfers leakage fluids outside the aircraft from the bellows, and a support piece surrounding the drain pipe. The bellows connects the APU engine with the drain pipe. The support piece provides stability to the bellows and the drain pipe.

Abstract: Embodiments described herein relate to quick release toilet concepts, which can be useful particularly on-board aircraft and other passenger transport vehicles. Further specific embodiments relate to a quick release rinse valve, a quick release flush valve, an integrated rinse ring, a replaceable toilet bowl, an integrated anti-siphon/rinse valve, and improved flush valve performance.

Abstract: A vacuum toilet unit having a urinal function with reduced noise emission, system design size and system weight, in which vacuum toilet unit a triggering device for triggering the vacuum valve is adapted in such a manner that the triggering unit may not be triggered when a sit-down toilet is in use as intended.

Abstract: There is provided a seal configuration for use in connection with vacuum systems. The seal configuration finds particular use in vacuum waste flush systems, such as those used in passenger transport vehicles that have on-board lavatories with vacuum toilet systems. The seal configuration generally provides an offset configuration, which can result in a larger seal on the vacuum side. This can slightly delay the opening of the waste side seal with respect to the vacuum side seal of the system, proving an improved vacuum environment. This can also give the flow of waste a more direct transition across a vacuum plate as it flows through a flush valve.

Abstract: A brace for a wall-mounted toilet, particularly useful for wall-mounted porcelain toilets in hospitals and other health care facilities. The brace a weight receiving structure supported by cantilevered struts that attach the brace to the wall, preferably using the same bolts that attach the toilet to the wall. The weight receiving structure may be seat portion that overlies the rim of the toilet bowl, so that the weight of the user is transmitted from the toilet seat to the seat structure and then to the walls through the struts. Alternately, the weight receiving structure may include an under-bowl support that extends underneath the toilet bowl so that the user's weight is transmitted from the bowl to the wall through the struts. Thus, the cantilevered brace increases the weight-bearing capacity of the wall-mounted toilet. A plastic shroud may be included for enclosing the brace and toilet bowl.

Abstract: A system for flushing a vacuum toilet in an aircraft, with a bowl drain for removing toilet waste water from a bowl, a drain line, a bypass flow line for feeding-in air, a drainage valve and a waste water line. The bowl drain and the bypass flow line are connectable to the drain line, and the drainage valve on the input side is connectable to the drain line, and on the output side is connectable to a waste water line. In an implementation of the vacuum toilet as a vacuum urinal, the system may provide either water flushing or waterless flushing.

Abstract: Air suction device for a flush toilet configured to suction air from a toilet drain duct having a suction chamber dividing a tank body interior, a float in the suction chamber and an on-off valve closing an air inlet when the float lifts to prevent air flow from the toilet drain duct side into the suction chamber. The air inlet is higher than the water level in a toilet flushing standby mode. The on-off valve opens the air inlet to allow air flow form the drain duct side in the suction chamber when flush water in the tank drops such that the float is lowered form the raised position. An embodiment includes a valve chest, a float and attracting member for on-off valve manipulation. Another embodiment includes a valve chest with a small air flow manipulation hole.

Abstract: The invention relates to a liquid ring pump (1) for generating vacuum and for pumping a flow of sewage in a vacuum sewage system. The liquid ring pump comprises in the direction of the flow of sewage a pump inlet (11), an inlet chamber (13), a pump housing (14) provided with a rotor (15) arranged on a drive shaft (16) provided with a mechanical seal (20), an outlet chamber (17), and an pump outlet (19). The mechanical seal (20) is arranged within the outlet chamber (17). The outlet chamber (17) is provided with an integrated extension (18) providing an enlargement of the outlet chamber (17) in order to retain the flow of sewage in the outlet chamber (17) before it is discharged from the pump outlet (19) in order to improve the lubrication of the mechanical seal (20).

Abstract: This invention discloses a buoyancy operation mechanism for a sewage suction device used in toilet. The mechanism includes: a water tank bottom plate that contains a lower leading pole and a second pulley, the tank wall having an aperture and a first pulley; an upper cover plate having an upper leading pole and a third pulley; a hollow floating box with either a rectangular or circular cross section wherein its center is equipped with a leading hole, a limiting barrier, a first hoist ring and a second hoist ring; a base plate that having a fourth pulley; and a top cover plate.

Abstract: A vacuum toilet and a method for operating a vacuum toilet, wherein generating negative pressure to remove solids by suction is also used for generating a desired flushing medium flow. To this effect, if necessary, guiding devices are used which influence a flow upstream of a nozzle outlet and downstream of a nozzle outlet such that flow optimization of the flushing medium can be carried out.

Abstract: The flushing device has a flushing tank (28), from which a quantity of flushing water can be fed to the toilet bowl (6). This flushing water quantity is divided into a part-quantity for cleaning an upper region of the toilet bowl (6) and a further part-quantity for moving water which is present in the toilet bowl (6). Means (30) are provided, with which the flushing water quantity is divided into at least three part-quantities. With a first part-quantity at least an upper region (A) of the inner side of the toilet bowl (6), and with a second part-quantity a middle region (B) of the inner side of the toilet bowl (6) is cleanable, and with a third part-quantity a siphon trap (12) of the toilet bowl (6) can be flushed and cleaned. The flushing device enables a more thorough cleaning of the toilet bowl with comparatively little water.

Abstract: The present invention provides a toilet using a cyclone-type sewage purifier, which can discharge excrement using a small amount of water and can sanitarily treat the discharged excrement using waste water, thus increasing the efficiency with which the waste water is recycled. The toilet includes a toilet bowl having a depression; a refuse pipe passing through the toilet bowl and connected to the depression, thus guiding the discharge of excrement from the depression; a refuse bowl seated in the depression and temporarily holding the excrement, and discharging the excrement into the refuse pipe when it is rotated; a rotating device for rotating the refuse bowl; and a cyclone-type sewage purifier for executing purification treatment using a vortex generated by descent of the excrement and waste water discharged from the refuse pipe and a waste water pipe.

Abstract: Embodiments described herein relate to quick release toilet concepts, which can be useful particularly on-board aircraft and other passenger transport vehicles. Further embodiments relate to improved shroud components for toilets that help reduce splash. Further embodiments also relate to flushing systems for use with vacuum toilets.

Abstract: An arrangement for adapting the transportation behavior of material to be conveyed includes a first container, which is coupleable to a first pressure level; a second container, which is coupleable to a second pressure level; a connecting line for transporting material to be conveyed from the first container to the second container; and a pressure reduction device by which a pressure difference between the first container and the second container is controllably variable.

Abstract: A drainage connector communicates between a drain outlet of a toilet drainage path connected to a toilet bowl and a connecting port of a drain conduit led into a room equipped with a toilet body. The drainage connector includes a casing formed with a flow inlet connected to the drain outlet and a flow outlet connected to the port, and piping disposed in the casing. The piping has an upstream piping having an upstream opening communicating with the flow inlet and forming a downward flow path when the drain outlet communicates with the port and a downstream piping connected to the upstream piping and having a downstream opening open to the casing in a lateral direction along an inner surface of the casing so that flush water flows out in the lateral direction. The downstream piping forms an upward flow path when the drain outlet communicates with the port.

Abstract: The apparatus and method of the invention provides for a rinse valve for controlling the flow of rinse fluid to a vacuum waste receptacle. The rinse valve comprises a primary rinse fluid flow path and a poppet assembly intersecting the primary rinse fluid flow path. The rinse valve also comprises a solenoid-driven fluid control device having a solenoid armature movable between an inactive state in which the armature engages the poppet assembly to block flow of the rinse fluid through a poppet channel and an active state in which the solenoid armature is disengaged from the poppet assembly to allow flow of the rinse fluid through the poppet channel to raise the poppet assembly, permitting the flow of the rinse fluid through the primary rinse fluid flow path and out of the valve, the armature being located at all times out of the primary flow path of the rinse fluid.

Abstract: The invention relates to an odor seal for a vacuum toilet drain system whose cross section in the state of no throughflow tapers off in such a way in the downstream direction that the interior walls on the downstream end of the odor seal rest against each other so that the odor seal in a downstream direction allows throughflow while in the opposite direction it blocks throughflow, wherein the downstream end of the odor seal is closed in the state of throughflow and no throughflow of the odor seal. Furthermore, the invention relates to a drainage device comprising such an odor seal and a sieve which is arranged upstream of the odor seal. Moreover, the invention relates to a vacuum toilet system for an aircraft, comprising such an odor seal or a drainage device.

Abstract: The apparatus and method of the invention provides for a flush valve for controlling the vacuum evacuation of waste from a receptacle. The flush valve comprises an inlet port for receiving the waste from the receptacle, an outlet port opposite the inlet port and in fluid communication therewith, a source of vacuum connected to the outlet port and a uniquely designed discharge disk disposed between the inlet and outlet ports for interrupting the flow of fluid therebetween. In the preferred embodiment the flush valve is integral with a latticed panel of the waste receptacle stand.

Abstract: A water-saving toilet bowl without a water tank, which comprises a flush pipe, a discharging pipe and a flush device. The flush device comprises a control cavity and a control valve that controls a drive motor to open or close the control cavity. A linkage rod links with a motor shaft of the drive motor. A through hole is provided in a partition. A control valve core is linked with the linkage rod via the through hole so that the control valve core is slid so as to open or close the through hole, and thereby the pressure change is controlled. The flush pipe of the toilet bowl is connected to two outlet passages of the flush device. An inlet passage is communicated with the outlet passages through a connection passage, and effluent water enters the flush pipe to flush the toilet bowl.

Abstract: The apparatus and method of the invention provides for a rinse valve for controlling the flow of rinse fluid to a vacuum waste receptacle. The rinse valve comprises a primary rinse fluid flow path and a poppet assembly intersecting the primary rinse fluid flow path. The rinse valve also comprises a solenoid-driven fluid control device having a solenoid armature movable between an inactive state in which the armature engages the poppet assembly to block flow of the rinse fluid through a poppet channel and an active state in which the solenoid armature is disengaged from the poppet assembly to allow flow of the rinse fluid through the poppet channel to raise the poppet assembly, permitting the flow of the rinse fluid through the primary rinse fluid flow path and out of the valve, the armature being located at all times out of the primary flow path of the rinse fluid.

Abstract: The present invention relates to an arrangement for adapting the transportation behavior of material to be conveyed, which arrangement comprises a first container, which is coupleable to a first pressure level; a second container, which is coupleable to a second pressure level; a connecting line for transporting material to be conveyed from the first container to the second container; and a pressure reduction device by means of which a pressure difference between the first container and the second container is controllably variable.

Abstract: A vacuum-operated sanitary device, in particular a vacuum toilet, comprising a bowl and a flushing device, with the flushing device comprising a nozzle arrangement with a nozzle inlet of a first cross section, a nozzle outlet of a second cross section, which nozzle outlet is directed onto an interior wall of the bowl, and a nozzle duct of a third cross section, which nozzle duct connects the nozzle inlet with the nozzle outlet, wherein the third cross section is smaller than both the first cross section and the second cross section; a first delivery device connected to the nozzle inlet, wherein the first delivery device is designed to deliver a first flushing medium; and a second delivery device that opens into the nozzle duct, wherein the second delivery device is designed to deliver a second flushing medium.

Abstract: A vacuum-aided toilet comprises a toilet bowl, a deodorization pipeline, a flushing pipeline, a sensing switch (4) and a control device. A flushing port of the toilet bowl is communicated with the deodorization pipeline. The deodorization pipeline is communicated to a vacuum device. Inside the toilet bowl are provided a trap I (1.1), a trap II (1.2) and a draining port (1.3). The flushing pipeline being connected to the flushing port of the toilet bowl and the trap II (1.2), respectively. The sensing switch (4) is connected to a control device, which controls the deodorization pipeline and the flushing pipeline. An ejector (2.4) mounted on an air discharge pipeline (2.5) is directly driven by gas from an air outlet of a ventilating fan (2.2), so that vacuum is produced in a draining pipe. Thus the vacuum-aided toilet can save water and get rid of the odor.

Abstract: The invention relates to a technique of disinfecting household and industrial waste water used as the basis of organo-mineral fertilizers. The present method of disinfection is carried out by means of quick vacuum-pulse actions on sewage sludge using a receiver and quick response valves, with a pulse duration of less than 1.0 seconds at a pressure of not more than 20 mmHg to achieve the required degree of disinfection. Technical result of the use of the invention is to accelerate and simplify the process of disinfection method.

Abstract: A flush toilet in which an appropriate amount of water is supplied and that can be installed in an area where water pressure is low.

Abstract: A control system for a purge valve that can be actuated by low pressure, which can be used for a low pressure or vacuum waste water system, encompassing a first valve and a second valve. The purge valve can be actuated as a function of its position, and the accumulated waste water can be drawn off via the sewage system.

Abstract: The system for flushing a vacuum toilet contains a urinal basin having a drain, which is connected to a drain line, and a bypass line, into which the drain line discharges, and which is connectable via a suction valve to a vacuum system. By generating a main air current in the bypass line and a secondary air current in the drain line, a noise emission in the area of the urinal basin may be significantly reduced.

Abstract: A flush toilet for discharging waste using flush water supplied from a flush water source, including a bowl portion having a bowl-shaped waste receiving surface, a rim portion a shelf portion; a rim spouting portion disposed on the rim portion for spouting flush water onto the shelf portion to form a swirl flow on the waste receiving surface; a rim water conduit, branching in the vicinity of the back surface side of the bowl portion from the shared water conduit, for supplying flush water to the rim spouting portion; and a jet water conduit branching in the vicinity of the rear surface side of the bowl portion from the shared water conduit, and communicating with an opening portion formed in the lower region of the waste receiving surface of the bowl portion.

Abstract: The invention relates to a vacuum sewage system, which includes a sanitary unit, such as a toilet unit, vacuum sewer piping (200) connected to the sanitary unit, a discharge valve between the sanitary unit and the vacuum sewer piping, and a vacuum generating device for generating vacuum in the vacuum sewer piping. The system comprises an on-line separator device (1) in the vacuum sewer piping (200, 201) and a first pump means (2) and a second pump means (3) connected in parallel with the on-line separator device (1). The first pump means (2) is a vacuum pump for generating vacuum in the vacuum sewer piping (200, 201) and for evacuating air from the sewage flow flowing into the on-line separator device (1) and the second pump means (3) is arranged for pumping mainly sewage from the sewage flow flowing into the on-line separator device (1).

Abstract: A water-saving toilet bowl without a water tank is provided, which comprises a flush pipe, a discharging pipe and a flush device. The flush device comprises a control cavity and a control valve that controls a drive motor to open or close the control cavity. A linkage rod links with a motor shaft of the drive motor. A through hole is provided in a partition. A control valve core is linked with the linkage rod via the through hole so that the control valve core is slid so as to open or close the through hole, and thereby the pressure change is controlled. The flush pipe of the toilet bowl is connected to two outlet passages of the flush device. An inlet passage is communicated with the outlet passages through a connection passage, and effluent water enters the flush pipe to flush the toilet bowl.

Abstract: A system for flushing a vacuum toilet contains a flushing water reservoir container, which may be filled with flushing water, a toilet bowl, which is connectable using a vacuum wastewater line and via a flushing valve to a vacuum system, and a spray device, situated in the toilet bowl, which is connected via a Venturi nozzle to the flushing water reservoir container. A partial vacuum is generated in the vacuum wastewater line when the flushing valve is open, which generates an airflow, by which flushing water contained in the flushing water reservoir container is suctioned, sprayed via the spray device into the toilet bowl, and suctioned into the vacuum wastewater line.

Abstract: A vacuum waste system for use in a vehicle, such as a aircraft. The vacuum waste system includes a lightweight base assembly and a lightweight toilet bowl assembly mounted to the top of the base assembly. The toilet bowl assembly has downwardly extending members that engage in a sliding manner with horizontally extending members at the top of the base assembly to thus secure the toilet bowl assembly to the base assembly. A fastener, such as a nut and bolt assembly, can be coupled to the toilet bowl assembly and base assembly using a tool to thus secure the toilet bowl assembly to the base assembly.

Abstract: A flush toilet for prevention of reverse flow and uses a reduced number of parts. The flush toilet includes a toilet body having a bowl, a rim water outlet, a jet water outlet, and a discharge water trap piping; a water storage tank. A flush water supply mechanism is provided for supplying flush water to the rim water outlet and the water storage tank and a pressurizing pump pressurizes the flush water in the water storage tank. A jet-side water supply path supplies the pressurized flush water to the jet water outlet. An overflow path is provided having a lower end connected to the downstream side of the highest position of the jet-side water supply path and an upper end opened in the upper part in the water storage tank with a flapper valve provided in the overflow path.

Abstract: In one aspect, the present invention is directed to a toilet flushing system, comprising: a first pump (38) and piping, for emptying the bend (56) of the flush toilet from fluids (water and urine) into a drainpipe (42); a water provider, for providing water for flushing the emptied toilet bowl; and a sensor (such as a foot pedal 24), for triggering the operation of emptying the bend and flushing the emptied toilet bowl thereafter; a control unit, for controlling the operation of emptying the bend (56) and flushing the emptied toilet bowl thereafter by a water quantity of at least the quantity required for sealing the bend; thereby flushing the toilet bowl using less water than in toilet flushing systems of the prior art.

Abstract: A flush tank device (10) includes a tank body (20) storing flush water to flush a toilet body (1), a water supply device (30) supplying flush water into the tank body, and an air suction device (40) sucking air in a toilet drain duct (3).

Abstract: A vacuum-toilet arrangement for a passenger car of a railroad vehicle is provided. The arrangement includes two WC cubicles which are connected to a joint vacuum unit.

Abstract: A system for flushing a vacuum toilet, includes a drain that is connected to a drain conduit, which vacuum toilet is connectable to a vacuum system by way of a suction valve. With the use of a combined valve including, for example, a flow-optimised intermediate storage device, inflow nozzle, bypass conduit with silencer and hose odor seal, the flow noises at the urinal bowl drain, urinal bowl overflow and upper end of the bypass conduit can be effectively suppressed. With the combination disc valve or the shut-off valve and suction valve, during the suction process the air stream is only drawn through the bypass conduit with a special odor seal and silencer.

Abstract: This invention discloses a buoyancy operation mechanism for a sewage suction device used in toilet. The mechanism includes: a water tank bottom plate that contains a lower leading pole and a second pulley, the tank wall having an aperture and a first pulley; an upper cover plate having an upper leading pole and a third pulley; a hollow floating box with either a rectangular or circular cross section wherein its center is equipped with a leading hole, a limiting barrier, a first hoist ring and a second hoist ring; a base plate that having a fourth pulley; and a top cover plate.