EP3321433A1

EP3321433A1 - Water-saving toilet bowl

Info

Publication number: EP3321433A1
Application number: EP16837216.7A
Authority: EP
Inventors: Guen Sig Shin
Original assignee: Ls Design Bath Co Ltd
Current assignee: Ls Design Bath Co Ltd
Priority date: 2015-08-20
Filing date: 2016-05-31
Publication date: 2018-05-16
Also published as: WO2017030274A1; EP3321433A4; CN107923166A; KR101582074B1; JP2018529035A

Abstract

The present invention relates to a water-saving toilet bowl which allows easy processing after urination or defecation by even a small amount of water, the toilet bowl comprising: a body which supports a user in a seated state and receives waste at the time of urination or defecation; a water tank which is disposed on one side of the body and stores water for washing the interior of the body through an inner space thereof; an auxiliary water tank which is installed in the water tank, receives a portion of the water stored in the water tank, and receives a portion of air in the body flowing when the feces and the water are discharged from the interior of the body; and a water discharge adjustor which is installed in the auxiliary water tank and differently adjusts the amount of water discharged into the body according to the type between urination and defecation.

Description

[Technical Field]

The present invention relates to a toilet bowl, and more particularly, to a water-saving toilet bowl that differently adjusts amounts of water discharged to a body from a water tank according to urination and defecation, thereby saving the amount of water consumed, and that allows an internal air in a discharge passage to flow to the outside to form a negative pressure in the discharge passage when waste and water in the body are discharged along the discharge passage, so that the waste and water are discharged gently to allow the treatment after the urination and defecation to be easily carried out even with a relatively small amount of water.

[Background Art]

A toilet bowl is generally used at the time of urination and defecation.
The toilet bowl includes a body for supporting a user in a state sitting thereon in such a manner as to receive waste at the time of urination and defecation and a water tank disposed on one side of the body to store water for washing the interior of the body at an internal space thereof. Accordingly, the user sits on the body at the time of urination and defecation, thereby taking a comfortable posture upon the urination and defecation, and after the urination and defecation, moreover, the water stored in the water tank is discharged together with waste in the body to the outside of the body, while washing the interior of the body, thereby allowing the treatment after the urination and defecation to be sanitary.
After the urination and defecation, however, a general toilet bowl discharges about 12 to 15 ℓ of entire water stored in the water tank to the interior of the body, thereby undesirably causing a big problem in the water consumption for treatments after the urination and defecation.
So as to minimize the amount of water consumed, accordingly, a block or the like is placed in the water tank so that a capacity of water stored in the water tank is reduced. In this case, the amount of water discharged is a little decreased, but the entire water stored in the water tank is discharged irrespective of the urination and defecation, thereby still causing a big problem in the water consumption for treatments after the urination and defecation.
So as to solve the above-mentioned problems, an improved toilet bowl is disclosed in Korean Patent Laid-Open Publication No. 10-2010-0095110 (Dated March 30, 2010 ), and the improved toilet bowl differently adjusts amounts of water discharged from a water tank according to urination and defecation.
According to the improved toilet bowl, a pair of buttons disposed on an external surface of the water tank is selectively manipulated so that about 6 to 7 ℓ of water stored in the water tank is discharged after defecation and about 3.0 to 4.0 ℓ of water stored in the water tank is discharged after urination, thereby saving the amount of water consumed when compared with the general toilet bowl.
On the other hand, traps are formed along a discharge passage formed on the inner lower portion of the body of the toilet bowl and are always filled with air. When waste and water are discharged through the discharge passage, however, discharge interference may occur seriously by the air filled in the traps, thereby failing to gently discharge the waste and water. Even in the case of the improved toilet bowl, if an amount of water discharged to the body is set to equal or less than a given level, that is, to 3.0 to 4.0 ℓ of water after urination and to 6 to 7 ℓ of water after defecation, it is hard to discharge the waste and water through the discharge passage, thereby failing to save the water anymore.
Many endeavors have been made in this field to develop a novel water-saving toilet bowl that is capable of differently adjusts amounts of water discharged to a body from a water tank according to urination and defecation and that is capable of minimizing discharge interference caused by the air filled in traps to allow the waste and water in the interior of the body to be gently discharged, but up to now, no satisfying effects are obtained from the existing toilet bowls.

[Disclosure]

[Technical Problem]

Accordingly, the present invention has been made in view of the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide a water-saving toilet bowl that is capable of reducing an amount of water discharged therefrom, thereby avoiding a water consumption problem of a general toilet bowl caused by discharging the entire water stored in a water tank to a body after urination and defecation.
It is another object of the present invention to provide a water-saving toilet bowl that is capable of reducing an amount of water discharged therefrom, thereby avoiding a water consumption problem of a general toilet bowl caused by setting an amount of water discharged to a body to equal or more than a given level by means of discharge interference caused by the air filled in traps of a discharge passage when waste and water are discharged through the discharge passage so that it is impossible to save the water anymore.

[Technical Solution]

To accomplish the above-mentioned object, according to the present invention, there is provided a water-saving toilet bowl including: a body for supporting a user in a state sitting thereon and for receiving waste at the time of urination and defecation; a water tank disposed on one side of the body to store water for washing the interior of the body at an internal space thereof; an auxiliary water tank mounted in the water tank to receive a portion of the water stored in the water tank and a portion of air in the body flowing when the waste and water are discharged from the interior of the body; and a water discharge adjustor mounted in the auxiliary water tank to differently adjust amounts of water discharged to the interior of the body according to the urination and defecation.
According to the present invention, desirably, the body includes a seat mounted on top thereof to provide a sitting surface, an opening formed on the inner lower portion thereof to discharge the water, and a discharge passage connected from the opening to a sewage pipe.
According to the present invention, desirably, the discharge passage includes top and bottom traps.
According to the present invention, desirably, the water tank includes a pair of buttons disposed on the external surface thereof to discharge the water stored therein after the urination and defecation, a water inlet pipe located at the inside thereof in such a manner as to be connected to an outside water pipe, and a through hole formed on the bottom thereof in such a manner as to communicate with the internal space of the body.
According to the present invention, desirably, the water inlet pipe is open and closed by an operating shaft having a float ascended and descended according to the changes in a water level of the water tank.
According to the present invention, desirably, the auxiliary water tank includes: a lower body having a water inlet hole formed on the bottom surface thereof to introduce water thereinto, a water outlet hole formed on the bottom surface thereof in such a manner as to face the through hole of the water tank, and an air flow pipe located on a top surface thereof in such a manner as to communicate with the discharge passage of the body; and an upper body coupled to the lower body and having a recessed portion formed on one side of the top surface thereof.
According to the present invention, desirably, the water inlet hole is formed on a stepped portion of the lower body spaced apart from the bottom of the water tank.
According to the present invention, desirably, the water outlet hole has a support piece disposed on the underside thereof to fix the lower body to the bottom of the water tank.
According to the present invention, desirably, the support piece is spirally coupled to a screw in such a manner as to be ascended or descended in a rotating direction of the screw.
According to the present invention, desirably, the air flow pipe has an expansion member disposed on top thereof.
According to the present invention, desirably, the expansion member is made of a soft thin film.
According to the present invention, desirably, the expansion member has a valve automatically open when an internal pressure of the air flow pipe is over an allowable pressure.
According to the present invention, desirably, the internal space of the upper body is divided by means of a partition wall formed in a longitudinal direction thereof, and one side portion divided has a bottom having an opening hole formed thereon.
According to the present invention, desirably, the bottom has an extension pipe extended downwardly therefrom.
According to the present invention, desirably, the recessed portion has an open slot formed on one side thereof in a longitudinal direction thereof.
According to the present invention, desirably, the recessed portion has a cleaning agent seated thereon.
According to the present invention, desirably, the water discharge adjustor includes a circular pipe-shaped housing, a pair of push plates located on an inner upper portion of the housing, a connection rod ascended and descended according to the pressurization of the push plates, a water discharge blocking plate coupled to the lower end periphery of the connection rod in such a manner as to be inserted into the inside of the housing from the outside of the housing by means of the ascending movement of the connection rod to open the through hole of the water tank, and a float ascended and descended according to the changes in a water level in the housing.
According to the present invention, desirably, the push plates are pressurized by the contact with the buttons of the water tank.

[Advantageous Effects]

According to the present invention, the water-saving toilet bowl includes the water discharge adjustor which differently adjusts the amounts of water discharged to the interior of the body according to urination and defecation, so that an amount of water discharged after the urination is smaller than that after the defecation, thereby saving the amount of water consumed.
Further, the water-saving toilet bowl according to the present invention includes the auxiliary water tank in which a portion of water stored in the water tank is accommodated, so that when water is discharged by the water discharge adjustor, the stored water in the auxiliary water tank, not the entire water stored in the water tank, is discharged, thereby allowing the body to be washed with a relatively small amount of water to save the amount of water consumed after the urination and defecation.
Furthermore, the water-saving toilet bowl according to the present invention includes the auxiliary water tank in which a portion of air in the body flowing when the waste and water are discharged from the interior of the body is accommodated, so that the negative pressure is formed in the discharge passage to allow the waste and water to be discharged gently, and the treatments after the urination and defecation are carried out even with a relatively small amount of water, thereby saving the amount of water consumed after the urination and defecation.

[Description of Drawings]

FIG.1 is an exploded perspective view showing a configuration of a water-saving toilet bowl according to the present invention.
FIG.2 is a sectional view showing the coupled state of the water-saving toilet bowl according to the present invention.
FIG.3 is an exploded perspective view showing an auxiliary water tank of the water-saving toilet bowl according to the present invention.
FIG.4 is a sectional view showing the coupled state of the auxiliary water tank of the water-saving toilet bowl according to the present invention.
FIG.5 is an exemplary view showing water reception through the auxiliary water tank of the water-saving toilet bowl according to the present invention.
FIG.6 is an exemplary view showing air reception through the auxiliary water tank of the water-saving toilet bowl according to the present invention.
FIG.7 is an exemplary view showing the expansion of an expansion member of the auxiliary water tank of the water-saving toilet bowl according to the present invention.
FIG.8 is an exemplary view showing the location of a cleaning agent in the auxiliary water tank of the water-saving toilet bowl according to the present invention.
FIG.9 is an exemplary view showing water discharging through a water discharge adjustor of the water-saving toilet bowl according to the present invention.

[Mode for Invention]

Hereinafter, an explanation on a water-saving toilet bowl according to the present invention will be in detail given with reference to the attached drawing.
As shown in FIGS.1 and 2, a water-saving toilet bowl A according to the present invention largely includes a body 10, a water tank 20, an auxiliary water tank 30, and a water discharge adjustor 40.
The body 10 supports a user in a sitting state thereon and receives waste at the time of urination and defecation.
The body 10 has a seat 11 mounted thereon to allow the sitting state of the user to be stabilized.
Further, the body 10 has an opening 12 formed on the inner lower portion thereof to discharge waste and water therethrough.
As the body 10 is provided with the opening 12, accordingly, the waste and water received in the interior of the body 10 are discharged through the opening 12.
Furthermore, the body 10 has a discharge passage 13 connected from the opening 12 to a sewage pipe (not shown).
As the body 10 is provided with the discharge passage 13, accordingly, the waste and water discharged from the interior of the body 10 are discharged to the outside through the discharge passage 13.
At this time, the discharge passage 13 has top and bottom traps 13a.
As the discharge passage 13 is provided with the top and bottom traps 13a, accordingly, odor transmission from the discharge passage 13 to the interior of the body 10 can be double-blocked by means of the top and bottom traps 13a.
On the other hand, the body 10 of the present invention has the same configuration as a body of a general toilet bowl, and accordingly, an explanation on the detailed structure of the body 10 will be avoided.
The water tank 20 is disposed on one side of the body 10 and stores water for washing the interior of the body 10 at an internal space thereof.
The water tank 20 has a pair of buttons 21 disposed on an external surface thereof to discharge the water stored therein after the urination and defecation.
As the water tank 20 is provided with the pair of buttons 21, accordingly, one of the buttons 21 is manipulated to discharge water from the water tank 20 to the body 10 after urination, and the other button 21 is manipulated to discharge water from the water tank 20 to the body 10 after defecation.
Further, the water tank 20 has a water inlet pipe 22 located at the inside thereof in such a manner as to be connected to an outside water pipe (not shown).
As the water tank 20 is provided with the water inlet pipe 22, accordingly, tap water is introduced through the water inlet pipe 22 so that the water can be stored in the water tank 20.
At this time, the water inlet pipe 22 is open and closed by an operating shaft 23 having a float 23a ascended and descended according to changes in a water level of the water tank 20.
As the water inlet pipe 22 is open and closed by the operation of the operating shaft 23, water supply is automatically carried out when the water level of the water tank 20 is low, and water supply is automatically blocked when the water level of the water tank 20 is high.
Further, the water tank 20 has a through hole 24 formed on the bottom thereof in such a manner as to communicate with the internal space of the body 10.
As the water tank 20 is provided with the through hole 24, accordingly, the water in the water tank 20 is discharged to the body 10 when the through hole 24 is open.
On the other hand, the water tank 20 of the present invention has the same configuration as a water tank of a general toilet bowl, and accordingly, an explanation on the detailed structure of the water tank 20 will be avoided.
The auxiliary water tank 30 is mounted in the water tank 20 and receives a portion of the water stored in the water tank 20 and a portion of air in the body 10 flowing when the waste and water are discharged from the interior of the body 10.
At this time, the portion of air in the body 10 is the air filled in the traps 13a of the body 10.
As shown in FIGS.3 and 4, the auxiliary water tank 30 includes a lower body 30' fixedly located on the bottom surface of the water tank 20 and an upper body 30" coupled to the lower body 30'.
In this case, the lower body 30' has a water inlet hole 31 formed on the bottom surface thereof to introduce water thereinto.
As the lower body 30' is provided with the water inlet hole 31, accordingly, the water in the water tank 20 is introduced into the lower body 30' so that a portion of water in the water tank 20 is stored in the auxiliary water tank 30.
At this time, the water inlet hole 31 is formed on a stepped portion 32 of the lower body 30' spaced apart from the bottom of the water tank 20.
As the water inlet hole 31 is formed on the stepped portion 32, accordingly, the underside end periphery of the water inlet hole 31 is open to introduce a portion of water in the water tank 20 into the auxiliary water tank 30 therethrough.
Further, the lower body 30' has a water outlet hole 33 formed on the bottom surface thereof in such a manner as to face the through hole 24 of the water tank 20.
As the lower body 30' is provided with the water outlet hole 33, accordingly, the water in the auxiliary water tank 30 flows into the body 10 through the through hole 24 when the water outlet hole 33 is open.
At this time, the water outlet hole 33 has a support piece 33a.
As the water outlet hole 33 is provided with the support piece 33a, accordingly, the support piece 33a is mounted over the through hole 24 to allow the lower body 30' to be fixed to the water tank 20.
In this case, the support piece 33a is spirally coupled to a screw 33b.
As the support piece 33a is spirally coupled to the screw 33b, accordingly, the support piece 33a mounted over the through hole 24 is ascended or descended as it rotates along the screw 33b, and the support piece 33a can be ascended to the maximum so that the support piece 33a is brought into rigid contact with the through hole 24.
Further, the lower body 30' has an air flow pipe 34 located on top thereof in such a manner as to communicate with the discharge passage 13 of the body 10.
As the lower body 30' is provided with the air flow pipe 34, accordingly, a negative pressure is formed in the discharge passage 13 of the body 10 when the air in the traps 13a is introduced into the air flow pipe 34, so that the waste and water in the body 10 are sucked into the discharge passage 13 by means of the negative pressure allowing the water to be discharged gently.
At this time, the lower end periphery of the air flow pipe 34 and the discharge passage 13 are connected to each other by means of a separate connection pipe (having no reference numeral in the drawing).
Further, the air flow pipe 34 has an expansion member 34a disposed on top thereof.
As the air flow pipe 34 is provided with the expansion member 34a, accordingly, the amount of air introduced into the air flow pipe 34 is increased by means of the expansion of the expansion member 34a.
In this case, the expansion member 34a has a valve 34b automatically open when an internal pressure of the air flow pipe 34 is over an allowable pressure.
As the expansion member 34a is provided with the valve 34b, accordingly, the damages of the air flow pipe 34 and the expansion member 34a caused by the excessive increment of the internal pressure of the air flow pipe 34 are prevented.
On the other hand, only if the expansion member 34a is expandable through the air introduction into the air flow pipe 34, it may have all structures and shapes, and for example, the expansion member 34a is made of a soft thin film.
Further, only if the valve 34b is automatically open when the internal pressure of the air flow pipe 34 is over the allowable pressure, it may have all structures and shapes, and accordingly, the detailed explanation will be avoided.
The upper body 30" has a recessed portion 35 formed on one side of top thereof.
As the upper body 30" is provided with the recessed portion 35, accordingly, a cleaning agent 50 is mounted at the recessed portion 35, as shown in FIG.8, so that cleaning ingredients of the cleaning agent 50 are contained in the water discharged to the body 10 from the auxiliary water tank 30, thereby performing cleaning for the interior of the body 10 gently.
At this time, the recessed portion 35 has an open slot 35a formed on one side thereof in a longitudinal direction thereof.
As the recessed portion 35 is provided with the open slot 35a, accordingly, it is possible to introduce water into the recessed portion 35 through the open slot 35a even in a relatively low water level where a level of water stored in the auxiliary water tank 30 does not reach top of the recessed portion 35, so that the cleaning ingredients of the cleaning agent 50 are contained easily in the water in the auxiliary water tank 30.
Further, the internal space of the upper body 30" is divided by means of a partition wall (having no reference numeral in the drawing) formed in a longitudinal direction thereof, and one side space divided has a bottom (having no reference numeral in the drawing) on which an open hole (having no reference numeral in the drawing) is formed.
As one side internal space divided of the upper body 30" is provided with the bottom having the open hole, accordingly, the water discharge adjustor 40 is mounted on the bottom.
At this time, the bottom of the upper body 30" has an extension pipe 36 extended downwardly therefrom.
As the bottom of the upper body 30" is provided with the extension pipe 36, accordingly, water is introduced through the extension pipe 36 so that the water is stored in the internal space of the upper body 30" in which the water discharge adjustor 40 is mounted.
On the other hand, only if the upper body 30" and the lower body 30' are rigidly coupled to each other, they may be coupled to each other through various typical coupling methods, and for example, they may be engaged with each other by means of protrusion and groove.
The water discharge adjustor 40 is mounted in the auxiliary water tank 30 and differently adjusts amounts of water discharged to the interior of the body 10 according to urination and defecation.
The water discharge adjustor 40 discharges 1.5 to 2.0fof water in the whole water stored in the auxiliary water tank 30 after urination and discharges 3.0 to 4.0 ℓ of entire water stored in the auxiliary water tank 30 after defecation, so that the water-saving toilet bowl according to the present invention has a remarkably smaller amount of water consumed after the urination and defecation when compared with the conventional toilet bowls.
On the other hand, the water discharge adjustor 40 includes: a circular pipe-shaped housing 41; a pair of push plates 42 located on an inner upper portion of the housing 41; a connection rod 43 ascended and descended according to the pressurization of the push plates 42; a water discharge blocking plate 44 coupled to the lower end periphery of the connection rod 43 in such a manner as to be inserted into the inside of the housing 41 from the outside of the housing 41 by means of the ascending movement of the connection rod 43 to open the through hole 24 of the water tank 20; and a float 45 ascended and descended according to the changes in a water level in the housing 41.
At this time, the housing 41 is open on a portion of the outer peripheral surface thereof to introduce water thereinto.
Further, the push plates 42 are disposed just underside the buttons 21 of the water tank 20 in such a manner as to be pressurized by the contact with the buttons 21.
Now, an explanation on the reduction in the water consumption through the water-saving toilet bowl according to the present invention will be in detail given.
The water tank 20 has the water inlet pipe 22 located at the inside thereof in such a manner as to be connected to the outside water pipe, and accordingly, tap water is introduced through the water inlet pipe 22, so that the water is stored in the water tank 20.
Further, the auxiliary water tank 30 is mounted in the water tank 20, and as shown in FIG.5, the auxiliary water tank 30 has the water inlet hole 31 adapted to introduce water in the water tank 20 thereinto, so that a portion of water in the water tank 20 is stored in the auxiliary water tank 30.
At this time, the water discharge adjustor 40 is mounted in the auxiliary water tank 30, and as mentioned above, the water discharge adjustor 40 includes: the circular pipe-shaped housing 41; the pair of push plates 42 located on an inner upper portion of the housing 41; the connection rod 43 ascended and descended according to the pressurization of the push plates 42; the water discharge blocking plate 44 coupled to the lower end periphery of the connection rod 43 in such a manner as to be inserted into the inside of the housing 41 from the outside of the housing 41 by means of the ascending movement of the connection rod 43 to open the through hole 24 of the water tank 20; and the float 45 ascended and descended according to the changes in a water level in the housing 41.
If the buttons 21 disposed on the external surface of the water tank 20 are manipulated after urination and defecation, the push plates 42 are pressurized to allow the connection rod 43 to be ascended, and as the connection rod 43 is ascended, accordingly, the water discharge blocking plate 44 coupled to the connection rod 43 is inserted into the inside of the housing 41 from the state protruding outwardly from the housing 41, so that the through hole 24 formed on the bottom of the water tank 20 in such a manner as to be blocked by the water discharge blocking plate 44 is open as shown in FIG.9 to allow water to be discharged from the auxiliary water tank 30 to the interior of the body 10. Accordingly, the interior of the body 10 is washed by the water, and together with the water, the waste received in the interior of the body 10 is discharged to the discharge passage 13 through the opening 12 formed on the inner lower portion of the body 10, thereby perfectly performing the treatments after the urination and defecation.
At this time, the water discharge adjustor 40 differently adjusts the amounts of water discharged to the interior of the body 10 according to the urination and defecation.
In more detail, the water discharge adjustor 40 differently adjusts the amount of water discharged when one of the push plates 42 is pressurized by the manipulation of one of the pair of buttons 21 disposed on the water tank 20 and the amount of water discharged when the other push plate 42 is pressurized by the manipulation of the other button 21 disposed on the water tank 20.
After urination, accordingly, one of the buttons 21 is manipulated to discharge a relatively small amount of water (1.5 to 2.0 ℓ of water), and after defecation, the other button 21 is manipulated to discharge a relatively large amount of water (3.0 to 4.0 ℓ of water), thereby minimizing the amounts of water consumed after the urination and defecation.
However, air is filled in the traps 13a of the discharge passage 13 of the body 10, and when the waste and water are discharged, accordingly, discharge interference may occur by the air, so that if a relatively smaller amount of water (1.5 to 2.0 ℓ of water) than that in a general toilet bowl is discharged after urination or if a relatively smaller amount of water (3.0 to 4.0 ℓ of water) than that in a general toilet bowl is discharged after defecation, the water is not discharged gently by means of the discharge interference caused by the air, thereby making it hard to perform the treatments after the urination and defecation.
According to the present invention, however, the auxiliary water tank 30 has the air flow pipe 34 communicating with the discharge passage 13 of the body 10, so that when the waste and water flow along the discharge passage 13, as shown in FIG.6, a portion of air in the interiors of the traps 13a is accommodated in the air flow pipe 34, and a portion of the discharge passage 13 is empty to form a negative pressure therein. Through the formation of the negative pressure, accordingly, the waste and water are sucked to the discharge passage 13, and even if a relatively small amount of water is discharged to the body 10 from the auxiliary water tank 30, the treatments after the urination and defecation are easily carried out.
At this time, the air flow pipe 34 has the expansion member 34a disposed on top thereof, and through the expansion of the expansion member 34a, as shown in FIG.7, an amount of air introduced into the air flow pipe 34 is increased so that the negative pressure formed in the discharge passage 13 becomes stronger, thereby allowing the waste and water to be discharged gently.
As described above, the water-saving toilet bowl A according to the present invention includes the water discharge adjustor 40 differently adjusts the amounts of water discharged to the interior of the body 10 according to the urination and defecation, so that an amount of water discharged after urination is smaller than that after defecation, thereby saving the amount of water consumed. Further, the water-saving toilet bowl A according to the present invention includes the auxiliary water tank 30 in which a portion of water stored in the water tank 20 is accommodated, so that when water is discharged by the water discharge adjustor 40, the stored water in the auxiliary water tank 30, not the entire water stored in the water tank 20, is discharged, thereby allowing the body 10 to be washed with a relatively small amount of water to save the amount of water consumed after the urination and defecation. Furthermore, the water-saving toilet bowl A according to the present invention includes the auxiliary water tank 30 in which a portion of air in the body 10 flowing when the waste and water are discharged from the interior of the body 10 is accommodated, so that the negative pressure is formed in the discharge passage 13 to allow the waste and water to be discharged gently, and the treatments after the urination and defecation are carried out even with a relatively small amount of water, thereby saving the amounts of water consumed after the urination and defecation.

While the present invention has been described with reference to the particular illustrative embodiments, it is not to be restricted by the embodiments but only by the appended claims. It is to be appreciated that those skilled in the art can change or modify the embodiments without departing from the scope and spirit of the present invention.

[Explanations on Reference Numerals]

10: body	11: seat
12: opening	13: discharge passage
13a: trap	20: water tank
21: button	22: water inlet pipe
23: operating shaft	23a: float
24: through hole	30: auxiliary water tank
30': lower body	30": upper body
31: water inlet hole	32: stepped portion
33: water outlet hole	33a: support piece
33b: screw	34: air flow pipe
34a: expansion member	34b: valve
35: recessed portion	35a: opening slot
36: extension pipe	40: water discharge adjustor
41: housing	42: push plate
43: connection rod
44: water discharge blocking plate
45: float	50: cleaning agent
A: water-saving toilet bowl

Claims

A water-saving toilet bowl comprising:
a body for supporting a user in a state sitting thereon and for receiving waste at the time of urination and defecation;

a water tank disposed on one side of the body to store water for washing the interior of the body at an internal space thereof;

an auxiliary water tank mounted in the water tank to receive a portion of the water stored in the water tank and a portion of air in the body flowing when the waste and water are discharged from the interior of the body; and

a water discharge adjustor mounted in the auxiliary water tank to differently adjust amounts of water discharged to the interior of the body according to the urination and defecation.
The water-saving toilet bowl according to claim 1, wherein the body comprises a seat mounted on top thereof to provide a sitting surface, an opening formed on the inner lower portion thereof to discharge the water, and a discharge passage connected from the opening to a sewage pipe.
The water-saving toilet bowl according to claim 2, wherein the discharge passage comprises top and bottom traps.
The water-saving toilet bowl according to claim 1, wherein the water tank comprises a pair of buttons disposed on the external surface thereof to discharge the water stored therein after the urination and defecation, a water inlet pipe located at the inside thereof in such a manner as to be connected to an outside water pipe, and a through hole formed on the bottom thereof in such a manner as to communicate with the internal space of the body.
The water-saving toilet bowl according to claim 4, wherein the water inlet pipe is open and closed by an operating shaft having a float ascended and descended according to the changes in a water level of the water tank.
The water-saving toilet bowl according to claim 1, wherein the auxiliary water tank comprises: a lower body having a water inlet hole formed on the bottom surface thereof to introduce water thereinto, a water outlet hole formed on the bottom surface thereof in such a manner as to face the through hole of the water tank, and an air flow pipe located on a top surface thereof in such a manner as to communicate with the discharge passage of the body; and an upper body coupled to the lower body and having a recessed portion formed on one side of the top surface thereof.
The water-saving toilet bowl according to claim 6, wherein the water inlet hole is formed on a stepped portion of the lower body spaced apart from the bottom of the water tank.
The water-saving toilet bowl according to claim 6, wherein the water outlet hole has a support piece disposed on the underside thereof to fix the lower body to the bottom of the water tank.
The water-saving toilet bowl according to claim 8, wherein the support piece is spirally coupled to a screw in such a manner as to be ascended or descended in a rotating direction of the screw.
The water-saving toilet bowl according to claim 6, wherein the air flow pipe has an expansion member disposed on top thereof.
The water-saving toilet bowl according to claim 10, wherein the expansion member is made of a soft thin film.
The water-saving toilet bowl according to claim 10, wherein the expansion member has a valve automatically open when an internal pressure of the air flow pipe is over an allowable pressure.
The water-saving toilet bowl according to claim 6, wherein the internal space of the upper body is divided by means of a partition wall formed in a longitudinal direction thereof, and one side portion divided has a bottom having an opening hole formed thereon.
The water-saving toilet bowl according to claim 13, wherein the bottom has an extension pipe extended downwardly therefrom.
The water-saving toilet bowl according to claim 6, wherein the recessed portion has an open slot formed on one side thereof in a longitudinal direction thereof.
The water-saving toilet bowl according to claim 6, wherein the recessed portion has a cleaning agent seated thereon.
The water-saving toilet bowl according to claim 1, wherein the water discharge adjustor comprises a circular pipe-shaped housing, a pair of push plates located on an inner upper portion of the housing, a connection rod ascended and descended according to the pressurization of the push plates, a water discharge blocking plate coupled to the lower end periphery of the connection rod in such a manner as to be inserted into the inside of the housing from the outside of the housing by means of the ascending movement of the connection rod to open the through hole of the water tank, and a float ascended and descended according to the changes in a water level in the housing.
The water-saving toilet bowl according to claim 17, wherein the push plates are pressurized by the contact with the buttons of the water tank.