摘要:
A water tank-less toilet flushing system includes a toilet bowl and a control system which includes a flush valve located higher than a top surface of the toilet bowl and a check valve operatively linked to the flush valve. When the flush valve is opened, the check valve is closed due to a water pressure for enabling the water to flush the toilet bowl. When the flush valve is closed, the check valve is opened for communicating an interior of the flush valve with an ambient atmosphere to prevent water in the toilet bowl to be backflow to the flush valve.
摘要:
A vacuum device connected to a hose includes a joint portion having a containing space detachably connected to a water-inlet faucet, a retaining edge formed inside the containing space for abutting at least one water-inlet hole with a sealskin of a plug, a groove formed at the bottom of the retaining edge for installing a seal plate to seal a water-outlet hole capable of closing or opening a gap from the plug, and an underlying formed at the bottom of the groove and having an inner wall, and a water outlet portion, including a main body connected to an inner wall of the underlying for defining at least one vent, and an installation space formed inside the main body and detachably connected to a water-outlet hose. The use of the sealskin and seal plate reduces the number of components of the vacuum device and achieves a cost-effective effect.
摘要:
An automatic flushing system for toilet and an electronic bidet toilet having the same are disclosed. The automatic flushing system for toilet has as overflow passage connecting an overflow port of a tank or a vacuum breaker to a toilet bowl. The overflow passage includes a first overflow line having a first end fixedly connected to a tank overflow port and a second end fixedly connected to a rim outlet of the toilet bowl, and a second overflow line having a first end fixedly connected to a vacuum breaker overflow port and a second end fixedly connected to a jet outlet of the toilet bowl. According to the present utility model, the overflow problem of the water and vacuum breaker is solved and generation of bubbles in the vacuum breaker during overflowing is eliminated.
摘要:
A wall-mounted elbow duct and particularly to a wall-mounted elbow duct to connect a wall-mounted water discharge pipe to a hand-held shower head mainly includes an elbow duct which houses a reverse checking mechanism and a coupler and a coupling cap. By means of the invention the hand-held shower head can be connected to the wall-mounted water discharge pipe without a great number of elements. An ornamental cover also is formed to conceal the connecting portion of the water discharge pipe to enhance aesthetic appeal.
摘要:
The invention relates to a backflow preventer having a housing, which has an inlet opening, an outlet opening and at least one leakage opening disposed between these openings and accommodates first and second nonreturn valves disposed in series, the first nonreturn valve being held displaceably in order to open up and close a flow connection between an intermediate space of the housing and the leakage opening. To develop the backflow preventer in such a manner that an inadmissible increase in pressure in the region of the outlet opening can be avoided in a structurally simple way, according to the invention it is proposed that the housing comprises an inner housing and an outer housing, the outer housing having the at least one leakage opening and the inner housing accommodating the two nonreturn valves and being held such that it can be displaced to and fro in the direction of through-flow within the outer housing, and the inner housing having an outlet opening, via which the flow connection between the intermediate space and the leakage opening can be produced independently of the position of the inner housing, by displacement of the first nonreturn valve relative to the second nonreturn valve.
摘要:
A vacuum breaker for hose connection includes an upper and a lower connecting element for connecting to a hose bibb and a hose connection, respectively, and a pressure pad. The upper connecting element internally has a waterproof gasket supported on a transverse partition to tightly contact with an end surface of the hose bibb. The lower connecting element has an internal stepped surface with a plurality of spaced air holes for communicating an inner space of the vacuum breaker with external environment. The pressure pad has a convex top with a central hole and is rested on the stepped surface. The pressure pad is deformed by water impacted to seal the air holes on the stepped surface, and restores to the convex top to open the air holes when the hose bibb is turned off, so that water remained in the water tube can be vacuum drained.
摘要:
The invention relates to a valve assembly of a pipe disconnector for separating a service water system which is arranged to be filled or re-filled from a drinking water system, comprising upstream and downstream backflow preventers which both close in the direction from the service water system to the drinking water system, and a relief valve, which is exposed to the pressure of the drinking water system in closing direction and which is adapted to connect the space between the backflow preventers to a drain, when this pressure ceases. A pipe disconnector is to be provided, which is easy to clean and to service. Furthermore, a valve assembly is to be provided which can be used equally for pipe disconnectors of the type CA and for pipe disconnectors of the type BA. This is achieved in that the backflow preventers and the relief valve are combined to form a structural unit which is designed to be removed from and set in, as a whole, into a pipe disconnector casing having connections for drinking water and service water and the drain. The relief valve comprises a slide valve body, which, at one end face, is exposed to the drinking water pressure and, at the opposite end face, is exposed to the pressure in a space between the backflow preventers, and which is arranged to cover, in its closed position, a lateral outlet opening of the pipe disconnector casing, which opening communicates with the outlet.
摘要:
A back flow preventer is provided that is made of at least two different materials. The back flow preventer includes a housing that has a passageway configured for the transport of a fluid therethrough. The housing has both an inlet and an outlet that define at least a portion of the passageway. The inlet is made of a different material than the outlet. A first and second check valve are disposed in the passageway. Both of the check valves allow fluid to flow through the passageway in the direction from the inlet to the outlet of the housing.
摘要:
A vacuum breaker having a floating piston that is movable in response to the communication of negative pressure to an inlet port of the vacuum breaker for permitting venting of fluid to the outside atmosphere through a vent opening. The vacuum breaker includes a liquid capture and containment device, which in conjunction with an outer hood, is effective for capturing and containing liquid in a fluid flow stream discharging from the vent opening and redirecting the captured liquid back into the vacuum breaker in order to prevent water leakage.
摘要:
A mounting structure for a handheld showerhead is provided with an integral vacuum breaker device that breaks the fluid communication between the shower pipe and the supply hose upon the occurrence of back pressure in the water supply system. The mounting structure comprises a mount body that is coupleable to a shower pipe at its inlet end and to a supply hose at its outlet end. A vacuum breaker is provided within the mount body in-line between the inlet end and the outlet end. When positive fluid pressure is applied to the vacuum breaker, water flows through the vacuum breaker to a supply hose and handheld showerhead coupled to the outlet end. When negative fluid pressure or back pressure is applied to the shower pipe, the vacuum breaker seals the channel within the mount body to break fluid communication between the inlet end and the outlet end, thus preventing the back pressure from drawing contaminated water through the supply hose and showerhead. A cradle for holding the handheld showerhead is pivotally coupled to the mount body, and the mount body is rotatable about the shower pipe. The handheld showerhead is thereby provided with a mounting structure that integrates a vacuum breaker for preventing contamination due to back pressure in the water supply system, while providing a full range of motion for mounting in a desired position.