2.3 LITTER WATER SAVING CLOSET
Technical Field
The present invention relates to a toilet for high conservation of water which enables sufficient flushing of the discharge with only a small amount of flushing water, e.g., 2.3 liters.
Background Art
The conventionally used siphon toilet employs a siphon action generated from the difference in the water level at the entrance and the exit of a U-shaped trapway, which requires abundant flushing water in order to obtain powerful discharging force from a siphon effect.
A direct discharge toilet illustrated in Fig. 1 was invented with the aim of improving the above described toilet. The toilet illustrated in Fig. 1 abandons the U- shaped trapway structure and adopts a straight trapway structure, and includes blocking means at the rear of the direct discharge conduit for storage of the flushing water in the bowl.
The structure of the direct discharge toilet disclosed in Korean Utility Model
Registration Gazette No. 254813, as illustrated in Fig. 1, shows that the toilet comprises a bowl having a trapway sloped downwards as it approaches to the rear such that the feces and urine and the flushing water can be naturally discharged; a discharge conduit for interconnecting the bowl and trapway with a discharge
collection means buried underground; a blocking means disposed within the discharge conduit, said blocking means being able to ascend and descend; a water supply tank comprising, in the lower part, a water outlet connected to a rim flushing conduit of the bowl being selectively opened or shut by a flapper; a water inlet valve connected to a water pipe for blocking a water inlet disposed in the lower part of the water supply tank when the water supply tank is full with water, and keeping the water inlet valve open before the water supply tank gets foil by a float that ascends or descends according to the water level; a flush lever installed within the water supply tank in order to perform like a seesaw, one end thereof being connected to a hinge axis and the flapper; an auxiliary lever having its region connected to the flush lever connected to the blocking means for discharge conduit; and an auxiliary tank joined to the other end of the auxiliary lever by hinge axis and having holes in each of the lower and upper parts.
However, the direct discharge toilet uses a flapper to prevent leakage of water for flushing, which may have a drawback of waste of water as the water will not be stored in the water supply tank due to leakage in an occasion when the flapper and the blocking means for discharge conduit is opened slightly.
Disclosure of Invention
The present invention aims to eliminate drawbacks of conventional direct discharge toilets so as to enable complete flushing of the feces and urine using only a small amount
of flushing water, e.g., 2.3 liters, without a leakage problem.
Brief Description of Drawings
Fig. 1 is a perspective view showing a conventional direct discharge toilet Fig. 2 is a perspective view showing the structure of the direct discharge toilet according to the present invention.
Fig. 3 is a sectional view of the toilet in the unflushed state according to the present invention.
Fig. 4 is a sectional view of the toilet when flushing the discharge according to the present invention.
Fig. 5 is a perspective view showing the structure of the flush lever according to the present invention.
Fig. 6 is a sectional view showing the structure of a flapper assembly according to the present invention. (List of the elements and their reference numerals in the drawings) l. bowl
2. water supply tank
3. flush lever
4. rotary weight 5. weight containing part
6. flush handle
7. water outlet
8. flapper assembly connecting line
9. discharge conduit
10. blocking means for discharge conduit
11. flapper assembly
12. weight
13. buoyancy member 14. rim flushing conduit
15. float
16. trapway
17. connecting rod
18. hinge axis 19. discharge collection means
20. water inlet
21. connecting part
Best Mode for Carrying Out the Invention The toilet for high conservation of water invented to achieve the above object comprises a bowl (1) having a trapway (16) sloped downwards as it approaches to the rear such that the feces and urine and the flushing water can be naturally discharged; a discharge conduit (9) for interconnecting the bowl (1) and trapway (16) with a discharge collection means (19) buried underground; a blocking means (10) for discharge conduit disposed within the discharge conduit (9), said blocking means being able to ascend and descend; a water supply tank (2) comprising, in the lower part, a water outlet (7) connected to a rim flushing conduit (14) of the bowl (1) being selectively opened or shut by a
flapper assembly (11); and a water inlet valve connected to a water pipe for blocking a water inlet (20) disposed in the lower part of the water supply tank (2) when the water supply tank is foil with water, and keeping the water inlet valve open before the water supply tank gets full by a float (15) that ascends or descends according to the water level; wherein the toilet comprises a flush lever (3) disposed inside the water supply tank (2), the flush lever (3) comprising a weight containing part (5) connected to a hinge axis (18) extending to both sides of the water supply tank at the center part of the weight containing part (5) like a seesaw such that a rotary weight (4) disposed inside the weight containing part can freely move to right and left, and a flush handle (6) exposed to the outside of the water supply tank (2) and fixed and joined to one end of the containing part (5), and a connecting part (21) fixed and joined to the other part such that flapper assembly (11) and the blocking means (10) for discharge conduit engage with the operation of the flush handle (6).
Hereinbelow, the present invention is described in detail with reference to the drawings attached with the preferred embodiments according the present invention.
Fig. 3 is a sectional view of the toilet according to the present invention in the unflushed state, wherein the discharge conduit (9) is closed by the blocking means (10) for discharge conduit at normal times so that a certain amount of water is always stored.
Fig. 4 is a sectional view of the toilet according to the present invention when flushing the discharge.
When a user presses the flush handle (6) after defecation, the flush handle (6) tilts the rotary weight (4) of the cylinder type to shift its position to the left side of the hinge axis (18).
After the above shift is made, the flapper assembly connecting line (8) connected to the end of the connecting part (21) opens the flapper assembly (11), and then the flushing water inside the water supply tank (2) flows into the bowl (1).
Also, at the same time the flapper assembly (11) is opened by the flush lever (3), the connecting rod (17) connected to the connecting part (21) pulls the blocking means
(10) for discharge conduit, opening up the discharge conduit (9). Thus, the flushing water and the feces and urine that were present in the bowl (1) are discharged through the discharge conduit (9).
In order to prevent feces from sticking to the blocking means (10) for discharge conduit when the feces are being discharged, the rotary weight (4) disposed in the weight containing part (5) of the flush lever (3) shifts to the left side of the hinge axis (18) so as to lift the blocking means (10) for discharge conduit by the load of the rotary weight (4) until the feces are completely discharged.
The flapper assembly (11) blocking the water outlet (7) is opened by the operation of the flush lever (3), and the flapper assembly (11) will be left opened by buoyant force when the flushing water stored inside the water supply tank (2) is discharged through the water outlet (7). When the flushing water is completely discharged, the buoyant force
disappears, and the flapper assembly (11) closes up the water outlet (7) by the load of the weight (12).
Thus, as the flapper assembly (11) pulls the flush lever (3) by the flapper assembly connecting line (8), the rotary weight (4) shifts to the right side of the hinge axis (18).
When such shift is made, the water inlet (20) opens up concurrently with the close up of the flapper assembly (11), and then, the flushing water is stored inside the water supply tank (2).
According to the location shift of the rotary weight (4), the load of the rotary weight (4) is applied to the blocking means (10) for discharge conduit by means of the connecting rod (17). The blocking means (10) for discharge conduit applied with the load closes up the discharge conduit (9) and stores the flushing water in the bowl.
Fig. 5 is a perspective view showing the structure of the flush lever (3) comprising the rotary weight (4). Normally, the rotary weight (4) is positioned on the right side of the hinge axis (18) adding weight to the blocking means (10) for discharge conduit which blocks the discharge conduit (9). However, when the user presses the flush handle (6), the rotary weight (4) shifts its position to the left side of the hinge axis (18), and simultaneously, the feces can be discharged as the blocking means (10) for discharge conduit is kept lifted up.
After the flushing water inside the water supply tank (2) is discharged, the flapper assembly (11) closes up the water outlet (7) by the load of the weight (12) disposed
therein, and pulls the flush lever (3). Accordingly, the rotary weight (4) disposed in the flush lever (3) shifts its position to the right side of the hinge axis (18).
Fig. 6 is a sectional view showing a device comprising the flapper assembly (11). The flapper assembly (11) is characterized in that it comprises the weight (12) disposed in the flapper assembly (11) and a buoyancy member (13) wrapped around the weight (12).
Normally, the flapper assembly (11) closes up and blocks the water outlet (7) in the water supply tank (2) due to the load of the weight (12) wrapped with the buoyancy member (13). When a user presses the flush handle (6), the flapper assembly (11) is lifted up which opens up the water outlet (7). Simultaneously, the buoyant force from the buoyancy member (13) becoming stronger than the load from the weight (12) installed inside the flapper assembly (11) is applied to the flapper assembly (11) to keep its up-lifted state.
According to such action, the flushing water is discharged, and the flushing water level inside the water supply tank (2) is lowered, which makes the load from the weight
(12) stronger than the buoyant force against the flapper assembly (11). Hence, the flapper assembly (11) closes up the water outlet (7), and concurrently pulls the flush lever (3).
The flush lever (3) pulled according to the weight change of the flapper assembly (11) tilts to a slope shifting the rotary weight (4) to the right side of the hinge axis (18).
Thus, the blocking means (10) for discharge conduit is lowered to shut the discharge conduit (9) so as to store the flushing water discharged from the inside of the water supply tank (2) into the bowl (1).
At the same time, the water inlet (20) operates again to store the flushing water inside the water supply tank (2) once more, which returns to the state illustrated in Fig. 3.