DESC:Field of the invention
The present invention relates to a rimless European Water Closet (EWC). More
specifically, the present invention relates to a water closet that is gravity flushed
and does not comprise of a flushing rim.
Background of the invention
Water closets are designed to sit in toilet and comprise of seat and cover or an
overhanging rim. A traditional water closet is attached with a flush tank for
flushing after usage. Small amount of water is trapped inside the water closet
itself by the water seal. There are different types of water closets available in
the market. The water closet can be designed as a European Water Closet
(EWC) or a squatting pan depending on the user sitting position. There are
various designs of the European Water Closets that are available in the market
including the box rim EWC, the open rim EWC and rimless water closets.
Such a water closet has been disclosed in US20150267389A1. Said toilet
comprises of a bowl; and a vertically-elongated jet hole located near a top of the
bowl between a rear of the bowl and a side of the bowl; wherein the verticallyelongated
jet hole is configured to direct flush water around an inner surface of
the bowl to wash the inner surface of the bowl.The water closet includes a bowl
having a vertically-elongated jet orifice near a top of the bowl that is designed
to introduce flush water into the bowl from an interior water channel through a
surface of an inner wall of the bowl, such that the flush water is directed around
the inner wall of the bowl to wash the inner wall. The toilet also includes a shelf
for directing the flush water. The toilet is a gravity-fed toilet that does not
include an overhanging rim.
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Such a rimless water closet has been disclosed in CN101835945A. Said rimless
water closet comprises a rimless toilet bowl and a flush water distribution
apparatus with pair of opposing water inlets that are arranged in use to direct
water flowing into the toilet in substantially horizontally opposing directions
around the inner surface of the toilet bowl. The toilet bowl includes a
circumferentially extending water guide adjacent each water inlet for guiding
said water in said substantially horizontally opposing directions around at least
a portion of the inner circumference of the bowl whereby each water guide is
provided with an upper surface on which the water is supported and carried.
Each water guide is adapted to allow a portion of said water to flow over an
edge thereof to rinse at least a portion of the inner wall below the guide. The
flush water distribution apparatus further comprises a third water inlet disposed
above and between said pair of opposing water inlets and arranged in use to
direct a small quantity of water into the bowl at a position above and between
the inlets.
The water closets as described in the prior art are not easy to clean; dirt or
bacteria gets accumulated as the bowl has unreachable holes and corners; the
water pressure is less as the inlet channel extends to entire rim; and the holes get
blocked after long use due to dirt build up and are not very hygienic.
Objective of the Invention
The objective of the invention is to design a water closet that is easy to clean;
has increased water pressure; no accumulation of dirt and bacteria takes place;
has high flushing efficiency; and is highly hygienic.
The present invention achieves the objective by designing a water closet that
does not comprise of a flushing rim and possess the feature of gravity flushing
that makes the water closet water efficient.
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Summary of the Invention
The present invention relates to a water closet, said water closet comprising of:
a bowl (5); a water inlet channel (11); a water trap inlet (14); and an outlet
channel (12).
According to a preferred embodiment a method of flushing of water through the
water closet comprises the steps of: releasing of water into the bowl (5);
directing water into front side of bowl (5); and gushing out of water and waste
from the bowl (5).
According to a preferred embodiment of the invention, said water closet
comprises of a water trap (14); a rectangular orifice (3); a circular orifice (1);
concealed cistern (32); bend pipe (33) and a rubber adapter (34).
According to another preferred embodiment of the invention, a ledge (4) of
about 15mm emanates from the back end of the bowl (5) opening at a depth of
about 75 mm from the top face of the rim extending to the front rim (6) on both
sides.
According to yet another preferred embodiment of the invention, a rectangular
orifice (3) is aligned under a skirting (7) at back end of the bowl (5) that directs
the water to the surface of the water trap.
According a preferred embodiment of the invention, a circular orifice (1) is
placed at both corners of the skirting (7) that directs the flush water through the
ledges (4) on both sides which facilitates the water to reach the front rim (6) and
ensures complete wash of the inner bowl (5).
According to another preferred embodiment of the invention, the concealed
cistern (32) is mounted inside a wall (31) and is further connected to the water
closet through a bend pipe (33).One end of the bend pipe (33) is connected to
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the outlet of the cistern (32) whereas the other end is connected to the inlet hole
of the water closet with a rubber adapter (34).
According to yet another embodiment of the invention, increase in the flow rate
of water is achieved as a shorter inlet channel with no rim is designed that
results in easy cleaning; more hygienic to use and avoid dirt and bacteria build
up.
According to a preferred embodiment of the invention, the optimal positioning
and angle of the circular orifices (1) reduces splashing and provides for a less
spurting of water.
According to another preferred embodiment of the invention, the water closet
may include, not limited to, a ledge (4) of about 15mm width that extends from
circular orifices (1) on both side of the skirting (7) and terminates in the front
lateral corners of the bowl (5). The clearance from the ledge(4) to the top of the
rim (6) canbe approximately 75mm with a slight downward sloping in the front
side to facilitate efficient flow of water through the ledge (4) to the front of the
bowl (5).
The size of the ledge (4); diameter and angle of the circular orifices (1); size of
the rectangular orifice (36) may be of any suitable size that may avoid splashing
of water and efficient cleaning and removal of waste material from the bowl (5).
Also, the angle, shape, clearance and position of the orifices and ledge may vary
according to other embodiments, and all such variations are intended to fall
within the scope of the present disclosure.
While a specific embodiment of the invention has been shown and described in
detail to illustrate the application of the principles of the invention, it will be
understood that the invention may be embodied otherwise without departing
from such principles.
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Detailed Description of the invention
The present invention relates to a water closet, said water closet comprising of:
a bowl (5); a water inlet channel (11); a water trap inlet (14); and an outlet
channel (12).
The instant invention employs the technique of gravitational flow of the water
from the concealed cistern (32) for the purpose of flushing out the waste from
the bowl (5). On flushing, water is released at a very high pace from the
concealed cistern (32) and runs into the water inlet channel (11). The water is
gushed out from the bowl (5) through the rectangular orifice (3) provided under
the skirting (7) at the back end of the opening of the bowl (5).
The invention also provides for a water inlet channel (11) that is shorter as
compared to the counter parts of the said water closet resulting in increased
vertical pressure of the water. The efficiency of expulsion of waste material
from the bowl (5) with less amount of trailing water is attributed to the absence
of an overhanging rim in said water closet. The swift flow of the water out of
the bowl (5) facilitates movement of waste inside the sewage drains and
clogging is prevented by the broad trap way.
The said invention is furnished with a push button dual flushing system having
dual flush capacity of a full flush and a half or partial flush. The rimless water
closet possesses two flushing volume variants that include 2/4 liter per flush
(0.52/1.05 gallon per flush) and 3/6 liter per flush (0.79/1.58 gallon per flush).
The half flush variant is favorable in case of clearing liquid waste whereas full
flush variant is used for the purpose of expelling solid waste material.
The rimless feature of the instant invention facilitates a simplified casting
process for producing the water closet as the number of mould loose parts are
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reduced and also the number of flushing holes and slots to punch are decreased
significantly thereby minimizing the number of operation and time.
Brief Description of the drawings
Figure 1 illustrates the perspective view of the water closet.
Figure 2 depicts the vertical transverse section of the water closet.
Figure 3 illustrates the back view of the water closet.
Figure 4 provides a depiction of the vertical transverse section view of
installation with cistern in the wall and water flow illustration which includes
the plan view as well of the water closet.
Detailed Description of Drawings
The figures illustrate various views of the instant invention. The views define
the components of the water closet that are as follows;
1. An open bowl (5) with no overhanging or enfolded rim.
2. A ledge(4) of 15mm on both sides of the open bowl at a depth of about
75mm from the top face of the rim.
3. A skirting(7) at the back end of the bowl.
4. A rectangular orifice (3)of dimension 45 X 12 mm that is aligned to the
centre under the skirting.
5. A top face of the rim (6).
6. Two rag bolt holes (2).
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7. Two seat cover fixing holes (8).
8. Two circular orifices(1) of 14mm diameter at about 14oangle.
9. A water trap (14).
10. Water surface or level (13).
11. An outlet (12).
12. A water inlet channel (11).
13. A water inlet hole (21).
The sectional view (40) and the plan view (41) of the rimless water closet in
Figure 4 describes the flow of the water as the water gushes (36) through the
two circular orifices (1) to the front of the rim through ledge on both sides (4).
The water is directed (37) to the surface of the water trap (14) with the help of
rectangular slot (3). The sectional view (40) also illustrates other components of
the rimless water closet that includes a concealed cistern (32), a bend pipe (33),
a rubber adaptor (34) and the attachment of the water closet to the wall (31) and
the floor (35).
The concealed cistern (32) mounted inside the wall (31) is connected to the
water closet with a PVC bend flush pipe (33) with one end of the pipe
connected to the outlet of the cistern and the other end connected to the inlet
hole of the toilet with a rubber adapter with 55 mm Ø OD (34).The water flows
through the inlet channel and gushes out through the two circular orifice (1) and
one rectangular slot or orifice (3) under the skirting at the back end of the bowl
(5) opening. The two circular orifice ejects water and flows through the ledge
(4) on both sides of the bowl (5) which facilitates the water to reach the front of
the bowl (5) and clean the total bowl (5) area efficiently. The rectangular slot or
orifice (3) under the skirting (7) directs the water on the surface of the water
trap (13).The waste material is pushed out of the bowl (5) through the trap inlet
,CLAIMS:CLAIMS
We claim:
1. A water closet, said water closet comprising of:
i. a bowl (5);
ii. a water inlet channel (11);
iii. a water trap inlet (14); and
iv. an outlet channel (12);
characterized in that said water closet is gravity flushed with no enfolded rim.
2. The water closet as claimed in Claim 1, wherein a ledge (4) emanates
from back end of the bowl (5) and extends to front rim (6) on both sides.
3. The water closet as claimed in Claim 1, wherein a rectangular orifice (3)
is aligned under a skirting (7) at back end of the bowl (5).
4. The water closet as claimed in Claim 1, wherein a circular orifice (1) is
placed at both corners of the skirting (7).
5. The water closet as claimed in Claim 1, wherein a bend pipe (33) is a
connecting link between a concealed cistern (32) and the water closet at one
end.
6. The water closet as claimed in Claim 1, wherein an inlet hole of said
water closet is connected to the bend pipe (33) through a rubber adapter (34).
7. A method of flushing of water, through the water closet claimed in Claim
1, said method comprising the steps of:
i. releasing of water into the bowl (5);
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ii. directing water into front side of bowl (5); and
iii. gushing out of water and waste from the bowl (5).
8. The method as claimed in Claim 7, wherein the concealed cistern (32)
releases the water into the water inlet channel (11) of said water closet.
9. The method as claimed in Claim 7, wherein the circular orifice directs
water to the front side of the bowl (5).
10. The method as claimed in Claim 7, wherein the water gushes out through
the rectangular orifice (3).