Water tank device for toilet bowl

Abstract

The present invention relates to a water tank device for a toilet bowl, and provides a water tank device for a toilet bowl, which allows washing water stored in a water tank body to be sequentially discharged in first and second stages, so that the washing water is not discharged all at once, but is discharged over an extended time period at a relatively low speed. Thus, sewage in the toilet can be completely discharged.

Description

Toilet cistern device

[0001] The present invention relates to a toilet tank device. More specifically, the present invention relates to a toilet tank device that discharges washing water stored within the tank body sequentially in first and second stages, thereby allowing washing water to be discharged at a relatively slow rate over a long period of time rather than all at once, thereby enabling more complete discharge of waste from the toilet body.

[0002] A toilet is generally structured to include a tank that stores washing water supplied through a water supply valve and a main body installed at the bottom of the tank. When a certain amount of washing water is stored in the tank, a cover that opens and closes a passage connected to the hand lever and the main body of the toilet is opened by operation of a hand lever installed on one side of the tank, thereby discharging washing water so that waste inside the main body of the toilet can be washed.

[0003] The tank of this type of toilet is a means for storing a certain amount of washing water, and when washing water is supplied from the outside and stored to a certain level, the float inside the bowl tap inside the tank changes in position from an initially inclined state to a near-vertical state according to the change in water level, thereby blocking the supply of washing water through the valve of the supply pipe. It is usually configured so that the supply of washing water is blocked when the displacement of the float of the bowl tap is completely achieved.

[0004] In a typical toilet, the drain hole of the cistern is opened by operating the hand lever, and the cleaning water stored in the cistern is supplied to the toilet body through the drain hole all at once.

[0005] As the cleaning water in the tank is supplied to the toilet body all at once, the water pressure increases, which can be beneficial for washing the waste in the toilet body. However, some of the waste in the toilet body often remains in the toilet body instead of being discharged into the sewage pipe along with the cleaning water. This is because the cleaning water is supplied to the toilet body all at once, so the discharge speed of the cleaning water is relatively too fast to discharge the waste stably.

[0006] Therefore, when the discharge hole of the tank is opened by the user's operation of the hand lever, the washing water in the tank is not discharged all at once, but is discharged over a long period of time at a relatively slow discharge speed, which is advantageous for completely discharging waste from the toilet body.

[0007] Currently, the commonly used toilets and cisterns do not have a structure that can adjust the discharge speed of the flushing water slowly, making it difficult to maintain the cleanliness of the toilet body.

[0008] The present invention was invented to solve the problems of the prior art, and the purpose of the present invention is to provide a toilet tank device that vertically separates the internal space of the water tank body into a first chamber and a second chamber, and when the discharge hole of the water tank is opened by a user operation, the washing water of the first chamber is discharged first and the washing water of the second chamber is sequentially discharged, so that the washing water can be discharged at a relatively slow speed for a long time rather than all at once, and thus the waste of the toilet body can be discharged more completely.

[0009] The present invention relates to a toilet tank device disposed on the upper part of a toilet body, comprising: a tank body storing washing water therein and having a discharge hole formed at the lower end to discharge washing water toward the toilet body; an upper and lower separating plate disposed inside the tank body to divide the internal space of the tank body into a lower primary chamber and an upper secondary chamber, and having a communication hole formed at one side; a primary valve mounted to open and close the discharge hole and operated to open the discharge hole by a user's operation; And a secondary valve which is mounted to open and close the communication hole of the upper and lower separation plates and operates to open the communication hole as the water level of the primary chamber decreases below a reference water level, and when the primary valve is opened by a user's operation, the washing water stored in the primary chamber is first discharged through the discharge hole, and when the water level of the primary chamber decreases below a reference water level as a result of the primary discharge, the secondary valve is opened, and the washing water stored in the secondary chamber flows into the primary chamber and is secondarily discharged through the discharge hole as a result of the opening of the secondary valve.

[0010] At this time, the toilet tank device may further include a fill valve module that is connected to a water supply pipe that supplies washing water to the internal space of the tank body and blocks or releases the supply of washing water by a first buoyancy switch that operates according to the water level of the secondary chamber; and a second buoyancy switch that operates by buoyancy to open the secondary valve when the water level of the primary chamber decreases below a reference water level and to close the secondary valve when the water level of the primary chamber exceeds the reference water level.

[0011] In addition, the secondary valve is arranged in a flat shape to be slidable on the upper surface of the upper and lower separating plates and includes a valve moving body having an open hole formed on one side, and the valve moving body can slide so that the open hole is in an open state in which it communicates with the communication hole or in a closed state in which the open hole is blocked from communicating with the communication hole as the second buoyancy switch moves up and down by buoyancy.

[0012] In addition, the second buoyancy switch includes a guide bar that penetrates the upper and lower separators and is arranged to be able to move up and down; a buoyancy body that is coupled to the lower end of the guide bar so as to be located in the first chamber; and a cam body formed on one side of the guide bar and moving up and down together with the guide bar, wherein one side of the valve moving body is in contact with the cam body and can slide when pressed by the cam body when the cam body moves up and down.

[0013] In addition, the cam body may include an opening operation unit that moves downward together with the guide bar and pressurizes the valve movement body to slide to an open state as the water level of the first chamber decreases below a reference water level; and a closing operation unit that moves upward together with the guide bar and pressurizes the valve movement body to slide to a closed state as the water level of the first chamber increases above a reference water level.

[0014] In addition, the opening operation part may be formed on one side of the guide bar and the contact surface that comes into contact with the valve moving body may be formed to have an inclined surface that moves away from the guide bar as it goes up, and the closing operation part may be formed on the other side of the guide bar and the contact surface that comes into contact with the valve moving body may be formed to have an inclined surface that moves closer to the guide bar as it goes up.

[0015] In addition, the fill valve module may be provided with a discharge port formed to discharge washing water, and a connecting member having two outlets may be connected to the discharge port, and a connecting line may be connected to the second outlet port so that washing water is supplied to the first chamber through the first outlet port of the connecting member, and washing water is supplied to the second chamber through the second outlet port of the connecting member.

[0016] According to the present invention, the internal space of the water tank body is vertically separated into a first chamber and a second chamber, and when the discharge hole of the water tank is opened by a user operation, the washing water of the first chamber is discharged first and the washing water of the second chamber is sequentially discharged, so that the washing water can be discharged at a relatively slow speed for a long time rather than all at once, and thus, there is an effect of more completely discharging waste from the toilet body.

[0017] In addition, by sequentially opening the secondary chamber through a secondary valve operated by buoyancy according to the water level of the primary chamber, it is possible to operate with a simple structure without separate electronic components or complex configurations, thereby improving manufacturing and management efficiency.

[0018] FIG. 1 is a conceptual diagram schematically illustrating a toilet equipped with a toilet tank device according to one embodiment of the present invention.

[0019] FIG. 2 is a conceptual diagram conceptually illustrating the internal structure of a toilet tank device according to one embodiment of the present invention.

[0020] Figure 3 is a drawing illustrating an example of a primary water discharge state based on the drawing illustrated in Figure 2.

[0021] Fig. 4 is a drawing illustrating a secondary water discharge state based on the drawing illustrated in Fig. 2.

[0022] Fig. 5 is a drawing exemplarily showing an initial state in which water is supplied to the primary chamber based on the drawing illustrated in Fig. 2.

[0023] Fig. 6 is a drawing exemplarily showing a mid-term state in which water is supplied to the primary chamber based on the drawing shown in Fig. 2.

[0024] Fig. 7 is a drawing exemplarily showing an initial state in which water is supplied to the first chamber and water is supplied to the second chamber based on the drawing shown in Fig. 2.

[0025] Fig. 8 is a drawing exemplarily showing a mid-term state in which water is supplied to the secondary chamber based on the drawing shown in Fig. 2.

[0026] The present invention relates to a toilet tank device disposed on the upper part of a toilet body, comprising: a tank body storing washing water therein and having a discharge hole formed at the lower end to discharge washing water toward the toilet body; an upper and lower separating plate disposed inside the tank body to divide the internal space of the tank body into a lower primary chamber and an upper secondary chamber, and having a communication hole formed at one side; a primary valve mounted to open and close the discharge hole and operated to open the discharge hole by a user's operation; And a second valve which is mounted to open and close the communication hole of the upper and lower separation plates and operates to open the communication hole as the water level of the first chamber decreases below a reference water level, and when the first valve is opened by a user's operation, the washing water stored in the first chamber is first discharged through the discharge hole, and when the water level of the first chamber decreases below a reference water level due to the first discharge, the second valve is opened, and the washing water stored in the second chamber is configured to flow into the first chamber and secondarily discharge through the discharge hole according to the opening operation of the second valve.

[0027] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. First, when assigning reference numerals to components in each drawing, it should be noted that, where possible, identical components are assigned the same reference numerals even if they appear in different drawings. Furthermore, when describing the present invention, detailed descriptions of known related structures or functions will be omitted if they are deemed to obscure the gist of the present invention.

[0028] FIG. 1 is a conceptual diagram schematically illustrating a toilet equipped with a toilet tank device according to one embodiment of the present invention, and FIG. 2 is a conceptual diagram conceptually illustrating the internal structure of a toilet tank device according to one embodiment of the present invention.

[0029] A toilet tank device according to one embodiment of the present invention is a device that is disposed on the upper portion of a toilet body (10) and discharges washing water to the toilet body (10), and is configured to include a tank body (100), an upper and lower separator (200), a first valve (300), a second valve (400), a fill valve module (500), and a second buoyancy switch (600).

[0030] First, the toilet body (10) is formed so that the washing water stored in the tank body (100) flows into it, and a trap pipe (20) is connected to the lower part of the toilet body (10). When the washing water flows into the toilet body (10) from the tank body (100), the washing water washes away the waste in the toilet body (10) and is discharged into the sewer pipe through the trap pipe (20). The toilet body (10) and the trap pipe (20) can be formed in the same manner as a general structure.

[0031] The tank body (100) is formed in the form of a container capable of storing washing water inside, and a discharge hole (110) is formed at the bottom to discharge washing water toward the toilet body (10). A primary valve (300) that is operated by the user's operation is mounted in the discharge hole (110).

[0032] The primary valve (300) operates to open the discharge hole (110) by the opening operation of a hand lever (not shown) formed on one side of the water tank body (100). When the discharge of the washing water from the water tank body (100) is completed in the open state of the discharge hole (110), the primary valve (300) operates to close the discharge hole (110) by its own weight even without a separate closing operation. The operation method of the water tank body (100) and the primary valve (300) can be formed in the same manner as a general structure.

[0033] An upper and lower separator plate (200) may be mounted in the internal space of the tank body (100). The upper and lower separator plates (200) may be formed in a flat plate shape and divide the internal space of the tank body (100) into a lower primary chamber (101) and an upper secondary chamber (102). The volumes of the primary chamber (101) and the secondary chamber (102) can be variously set by the upper and lower separator plates (200) according to the needs of the user. That is, the installation positions of the upper and lower separator plates (200) can be variously adjusted by the user.

[0034] A communication hole (210) is formed on one side of the upper and lower separator plates (200) so as to allow the primary chamber (101) and the secondary chamber (102) to communicate with each other. At this time, the diameter of the communication hole (210) may be formed to be larger than the diameter of the discharge hole (110), but is not limited thereto, and may be formed to be the same as or smaller than the diameter of the discharge hole (110). When the diameter of the communication hole (210) is formed to be larger than the diameter of the discharge hole (110), after the communication hole (210) is opened, the flow rate per unit time of the washing water flowing into the primary chamber (101) from the secondary chamber (102) through the communication hole (210) may be greater than the flow rate per unit time of the washing water discharged to the toilet body (10) from the primary chamber (101) through the discharge hole (110). Therefore, before the washing water of the primary chamber (101) is completely discharged through the discharge hole (110), the washing water of the secondary chamber (102) can be completely introduced into the primary chamber (101) through the communication hole (210).

[0035] A secondary valve (400) is mounted on the upper and lower separator plates (200) to open and close the communication hole (210). The secondary valve (400) operates to open the communication hole (210) as the water level in the primary chamber (101) decreases below the reference water level (Hc).

[0036] The secondary valve (400) is opened and closed by the second buoyancy switch (600). At this time, the second buoyancy switch (600) is operated by buoyancy to open the secondary valve (400) as the water level of the primary chamber (101) decreases below the reference water level (Hc) and to close the secondary valve (400) as the water level of the primary chamber (101) exceeds the reference water level (Hc). A detailed description of the configuration of the secondary valve (400) and the second buoyancy switch (600) will be described later.

[0037] A fill valve module (500) is mounted inside the tank body (100) so as to supply washing water from the outside into the internal space of the tank body (100). The fill valve module (500) is connected to a water supply pipe (40) that supplies washing water into the internal space of the tank body (100) and blocks or releases the supply of washing water by a first buoyancy switch (510) that operates according to the water level of the secondary chamber (102). The fill valve module (500) includes a fill valve pipe (501) that is connected to the water supply pipe (40) and extends in a vertical direction, and the fill valve pipe (501) has a first buoyancy switch (510) coupled to the upper end thereof, and the first buoyancy switch (510) moves up and down by buoyancy according to the water level of the secondary chamber (102) and opens and closes a valve (not shown) inside the fill valve pipe (501). When the water level of the secondary chamber (102) falls below the reference water level, the first buoyancy switch (510) is opened to supply washing water, and when the water level of the secondary chamber (102) exceeds the reference water level, the first buoyancy switch (510) is closed to cut off the supply of washing water.

[0038] According to this structure, when the primary valve (300) is opened by the user's operation, the washing water stored in the primary chamber (101) is first discharged to the toilet body (10) through the discharge hole (110), and when the water level of the primary chamber (101) decreases below the reference water level (Hc) through the primary discharge process, the secondary valve (400) is opened, and when the secondary valve (400) is opened, the washing water stored in the secondary chamber (102) flows into the primary chamber (101) through the communication hole (210) and is secondarily discharged through the discharge hole (110).

[0039] Looking more specifically at the operating state of the toilet tank device, as with a typical tank device, when the user operates the hand lever, the primary valve (300) opens in conjunction with the operation of the hand lever and the discharge hole (110) opens. In a typical tank device, when the discharge hole (110) opens, the washing water stored inside the tank body (100) is discharged toward the toilet body at once, but in one embodiment of the present invention, the washing water stored in the primary chamber (101) is discharged primarily through the discharge hole (110). At this time, the communication hole (210) of the upper and lower separation plates (200) is maintained in a closed state by the secondary valve (400).

[0040] In this process, as the washing water of the primary chamber (101) continues to be discharged through the discharge hole (110), the water level of the primary chamber (101) decreases. At this time, the washing water of the secondary chamber (102) is not discharged, so the water level inside the water tank body (100) (i.e., the water level of the secondary chamber (102)) is maintained at the full water level. The first buoyancy switch (510) operates to open or close the water supply pipe (40) according to the water level of the secondary chamber (102). Since the water level of the secondary chamber (102) is maintained at the full water level during the process of discharging the washing water of the primary chamber (101), the first buoyancy switch (510) keeps the water supply pipe (40) closed. That is, during the process of first discharge of the washing water from the primary chamber (101), the water supply pipe (40) is maintained in a closed state, and washing water is not supplied through the water supply pipe (40).

[0041] When the water level of the primary chamber (101) decreases to the reference water level (Hc) due to the discharge of the washing water from the primary chamber (101), the second buoyancy switch (600) operates to open the secondary valve (400). The opening of the secondary valve (400) opens the communication hole (210) of the upper and lower separator plates (200). Accordingly, the washing water stored in the secondary chamber (102) flows into the primary chamber (101) through the communication hole (210) and is discharged for the second time through the discharge hole (110).

[0042] Accordingly, in the toilet tank device according to one embodiment of the present invention, when the user operates the hand lever, the washing water inside the tank body (100) is not discharged into the toilet body (10) at once, but the washing water in the primary chamber (101) and the washing water in the secondary chamber (102) are sequentially discharged into the toilet body (10). Therefore, the overall time for the washing water in the tank body (100) to be discharged increases, and accordingly, the waste in the toilet body (10) can be discharged more completely.

[0043] That is, the toilet tank device according to one embodiment of the present invention discharges the washing water stored inside the tank body (100) slowly at a relatively small flow rate through primary and secondary discharge of the washing water rather than discharge it all at once, so that during the process of washing the waste on the toilet body (10), waste residue and the like do not remain on the toilet body (10) and the washing function can be performed more perfectly.

[0044] Meanwhile, as described above, after the washing water stored in the secondary chamber (102) is also completely discharged through the discharge hole (110), the primary valve (300) closes the discharge hole (110) due to its own weight. At this time, as the washing water stored in the secondary chamber (102) is discharged, the water level of the secondary chamber (102) decreases, and accordingly, the first buoyancy switch (510) operates to open the water supply pipe (40). That is, when the washing water in the primary chamber (101) and the secondary chamber (102) is completely discharged, the discharge hole (110) is closed by the primary valve (300), and the water supply pipe (40) is opened by the first buoyancy switch (510). Through the closing of the discharge hole (110) and the opening of the water supply pipe (40), washing water is again supplied and stored inside the water tank body (100).

[0045] Washing water supplied through the water supply pipe (40) is supplied to the fill valve pipe (501) of the fill valve module (500), discharged through the discharge port (520) formed in the fill valve pipe (501), and supplied and stored inside the water tank body (100). The discharge port (520) is connected to the lower side of the fill valve pipe (501) in the same manner as a general fill valve module. That is, the discharge port (520) is arranged in the internal space of the primary chamber (101). Therefore, the washing water supplied through the water supply pipe (40) is discharged through the discharge port (520) and fills the internal space of the primary chamber (101) first. That is, after the primary valve (300) closes the discharge hole (110), the water level of the primary chamber (101) increases due to the supply of washing water through the water supply pipe (40).

[0046] The second buoyancy switch (600) operates to close the secondary valve (400) again as the water level in the primary chamber (101) increases. At this time, the second buoyancy switch (600) can operate to complete the closing operation of the secondary valve (400) at or after the point in time when the washing water is completely filled in the secondary chamber (102). The point in time when the washing water is completely filled in the secondary chamber (102) means that the water level of the washing water has reached the full water level.

[0047] In this way, by closing the secondary valve (400) when the washing water is completely filled in the secondary chamber (102), the washing water can be filled smoothly from the primary chamber (101) through the communication hole (210) to the secondary chamber (102).

[0048] Of course, the second buoyancy switch (600) may be operated to complete the closing operation of the secondary valve (400) before the washing water is completely filled in the secondary chamber (102). In this case, a separate washing water passage hole (not shown) may be additionally formed in the upper and lower separator plates (200) so that the washing water supplied through the water supply pipe (40) may flow from the primary chamber (101) into the secondary chamber (102) through the washing water passage hole.

[0049] In this case, it is preferable that the diameter of the washing water passage hole be formed smaller than the diameter of the communication hole (210). This makes it possible to minimize the movement of washing water passing through the washing water passage hole from the secondary chamber (102) to the primary chamber (101) when the discharge hole (110) is open.

[0050] In the above, during the process of filling the washing water into the tank body (100), the washing water is supplied from the primary chamber (101) to the secondary chamber (102) through the washing water passage hole formed in the upper and lower separator plates (200). However, alternatively, a separate connecting member (530) may be mounted on the discharge port (520) to sequentially supply washing water to the primary chamber (101) and the secondary chamber (102) separately.

[0051] For example, a connecting member (530) having two outlets (531, 532) may be connected to the outlet (520) of the fill valve module (500), and a connecting line (540) may be connected to the second outlet (532) so that washing water is supplied to the primary chamber (101) through the first outlet (531) of the connecting member (530) and washing water is supplied to the secondary chamber (102) through the second outlet (532) of the connecting member (530). The connecting line (540) may be arranged to penetrate the upper and lower separator plates (200) so that the lower end is connected to the second outlet (532) and the upper end is located in the secondary chamber (102).

[0052] In this case, the washing water supplied to the fill valve module (500) through the water supply pipe (40) is first supplied to the primary chamber (101) through the first outlet (531) of the connecting member (530), and after the primary chamber (101) is filled, it is supplied to the secondary chamber (102) through the second outlet (532) so that the secondary chamber (102) is filled. When the water level of the secondary chamber (102) reaches the full water level, the washing water supply of the water supply pipe (40) is cut off by the operation of the first buoyancy switch (510) as described above.

[0053] In addition, in this case, as the washing water is filled in the first chamber (101) and the water level increases, the second buoyancy switch (600) may be operated to close the secondary valve (400). That is, the closing operation of the secondary valve (400) may be performed in the process of the washing water being filled in the first chamber (101). Accordingly, if the washing water is sequentially supplied to the first chamber (101) and the second chamber (102) through the connecting member (530) and the connecting line (540), the closing time of the secondary valve (400) by the second buoyancy switch (600) need not be limited to the time when the washing water is filled in the second chamber (102) or a time thereafter.

[0054] Next, the detailed configuration of the secondary valve (400) and the second buoyancy switch (600) and their operating status will be examined in more detail with reference to FIGS. 2 to 8.

[0055] The secondary valve (400) is arranged in a flat shape so as to be slidable on the upper surface of the upper and lower separator plates (200) and includes a valve moving body (410) having an open hole (411) formed on one side. Although not shown, a separate guide part (not shown) may be formed on the upper surface of the upper and lower separator plates (200) to guide the slide movement path of the valve moving body (410).

[0056] This valve moving body (410) slides so that the opening hole (411) is in an open state in which it communicates with the communication hole (210) or in a closed state in which the opening hole (411) is blocked from communicating with the communication hole (210) as the second buoyancy switch (600) moves up and down due to buoyancy.

[0057] The second buoyancy switch (600) may be configured to include a guide bar (610) that penetrates the upper and lower separation plates (200) and is arranged to be able to move up and down, a buoyancy body (620) that is coupled to the lower end of the guide bar (610) so as to be positioned in the primary chamber (101), and a cam body (630) that is formed on one side of the guide bar (610) and moves up and down together with the guide bar (610). The buoyancy body (620) may be formed in the shape of a hollow sphere (buoy) containing air therein.

[0058] The valve moving body (410) has one side in contact with the cam body (630) and can slide when pressed by the cam body (630) when the cam body (630) moves up and down.

[0059] The cam body (630) may include an opening operation part (631) that moves downward together with the guide bar (610) and pressurizes the valve movement body (410) to slide to an open state as the water level of the primary chamber (101) decreases below a reference water level, and a closing operation part (632) that moves upward together with the guide bar (610) and pressurizes the valve movement body (410) to slide to a closed state as the water level of the primary chamber (101) increases above a reference water level.

[0060] The opening operation part (631) may be formed on one side of the guide bar (610) and may be formed so that the contact surface that comes into contact with the valve movement body (410) has an inclined surface (631a) that moves away from the guide bar (610) as it goes up. The closing operation part (632) may be formed on the other side of the guide bar (610) and may be formed so that the contact surface that comes into contact with the valve movement body (410) has an inclined surface (632a) that moves closer to the guide bar (610) as it goes up.

[0061] The opening operation part (631) and the closing operation part (632) can move the valve movement body (410) in the left-right direction during the up-and-down movement process by contacting the valve movement body (410) through the inclined surfaces (631a, 632a).

[0062] According to this structure, when the primary valve (300) is opened by the user's hand lever operation as illustrated in FIG. 3, the washing water in the primary chamber (101) is first discharged into the toilet body (10) through the discharge hole (110). In this process, the water level in the primary chamber (101) decreases, and the second buoyancy switch (600) moves downward due to its own weight as the water level decreases. When the water level in the primary chamber (101) decreases below the reference water level (Hc), the secondary valve (400) is opened from this point on during the downward movement of the second buoyancy switch (600).

[0063] A stopper block (640) is coupled to the upper end of the guide bar (610) of the second buoyancy switch (600), and the second buoyancy switch (600) is maintained in a coupled state without being detached downward from the valve moving body (410) and the upper and lower separating plates (200) by the stopper block (640).

[0064] As illustrated in FIG. 4, when the water level of the primary chamber (101) decreases below the reference water level (Hc), the second buoyancy switch (600) moves downward, and the opening operation part (631) of the cam body (630) pressurizes and moves the valve movement body (410) to the right. The inclined surface (631a) of the opening operation part (631) contacts the valve movement body (410) and pressurizes and moves the valve movement body (410) to the right. The valve movement body (410) moves to an open state in which the opening hole (411) communicates with the communication hole (210) of the upper and lower separating plates (200), and thus the communication hole (210) is opened. When the communication hole (210) is opened, the washing water of the secondary chamber (102) flows into the primary chamber (101) through the communication hole (210) and is discharged from the primary chamber (101) to the toilet body (10) through the discharge hole (110).

[0065] When the discharge process through the discharge hole (110) of the wash water in the secondary chamber (102) is completed (the discharge process is completed with some wash water remaining in the primary chamber (101) or secondary chamber (102), as illustrated in FIG. 5, the primary valve (300) is closed by its own weight to close the discharge hole (110). At this time, since no wash water remains in the secondary chamber (102) or a very small amount remains, the first buoyancy switch (510) is opened. By the opening operation of the first buoyancy switch (510), wash water is supplied to the fill valve module (500) from the water supply pipe (40). The wash water supplied to the fill valve module (500) flows into the primary chamber (101) through the first outlet (531) of the connecting member (530). Accordingly, the water level in the primary chamber (101) increases again.

[0066] As the water level of the primary chamber (101) increases, the secondary buoyancy switch (600) moves upward due to buoyancy. As shown in Fig. 6, when the water level of the primary chamber (101) increases to the reference water level (Hc), from this point on, the secondary valve (400) closes during the upward movement of the second buoyancy switch (600).

[0067] When the water level of the primary chamber (101) increases above the reference water level (Hc) as shown in FIG. 6 to FIG. 7, the second buoyancy switch (600) moves upward, and during the upward movement of the second buoyancy switch (600), the closing operation part (632) of the cam body (630) pressurizes and moves the valve movement body (410) to the left. The inclined surface (632a) of the closing operation part (632) comes into contact with the valve movement body (410) and pressurizes and moves the valve movement body (410) to the left. The valve movement body (410) moves to a closed state in which the open hole (411) is blocked from communicating with the communication hole (210) of the upper and lower separating plates (200), and thus the communication hole (210) is closed.

[0068] As illustrated in FIG. 7, when the water level of the primary chamber (101) reaches the full water level (or before), the communication hole (210) is completely closed. When the primary chamber (101) reaches the full water level, the washing water flowing in through the connecting member (530) of the fill valve module (500) flows into the secondary chamber (102) along the connecting line (540). Thereafter, when the washing water supply to the secondary chamber (102) continues, the water level of the secondary chamber (102) increases, as illustrated in FIG. 8, and the first buoyancy switch (510) moves to close due to buoyancy. As illustrated in FIG. 2, when the water level of the secondary chamber (102) reaches the full water level, the first buoyancy switch (510) completes its upward movement due to buoyancy, and the washing water supply through the water supply pipe (40) is cut off.

[0069] Through this process, the washing water stored in the first chamber (101) and the second chamber (102) is sequentially discharged through the discharge hole (110), thereby discharging the washing water for a relatively long period of time and more completely discharging the waste in the toilet body (10).

[0070] The above description is merely an illustrative illustration of the technical idea of ​​the present invention, and those skilled in the art will appreciate that various modifications and variations can be made without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the technical idea of ​​the present invention, and the scope of the technical idea of ​​the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted by the following claims, and all technical ideas within a scope equivalent thereto should be interpreted as being included in the scope of the rights of the present invention.

Claims

1. In the toilet tank device placed on the upper part of the toilet body, A tank body that stores washing water inside and has a discharge hole formed at the bottom to discharge washing water toward the toilet body; An upper and lower separation plate arranged inside the tank body to separate the internal space of the tank body into a lower primary chamber and an upper secondary chamber, and having a communication hole formed on one side; A primary valve which is mounted to open and close the discharge hole and operates to open the discharge hole by the user's operation; and A secondary valve that is installed to open and close the communication hole of the upper and lower separation plates and operates to open the communication hole as the water level of the primary chamber decreases below the reference water level. A toilet tank device, comprising: a primary valve that is opened by a user's operation; washing water stored in the primary chamber is discharged through the discharge hole; and when the water level of the primary chamber decreases below the reference water level due to the primary discharge, the secondary valve is opened; and washing water stored in the secondary chamber flows into the primary chamber and is discharged through the discharge hole due to the opening of the secondary valve.

2. In paragraph 1, A fill valve module that is connected to a water supply pipe that supplies washing water to the internal space of the tank body and blocks or releases the supply of washing water by a first buoyancy switch that operates according to the water level of the secondary chamber; and A second buoyancy switch that operates by buoyancy to open the second valve as the water level in the first chamber decreases below the reference water level and to close the second valve as the water level in the first chamber exceeds the reference water level. A toilet cistern device further comprising:

3. In paragraph 2, The above secondary valve It includes a valve moving body that is arranged to be slidable on the upper surface of the upper and lower separating plates in a flat shape and has an open hole formed on one side. A toilet cistern device in which the valve moving body slides so that the opening hole is in an open state in which it communicates with the communication hole, or in a closed state in which the opening hole is blocked from communicating with the communication hole, as the second buoyancy switch moves up and down due to buoyancy.

4. In paragraph 3, The above second buoyancy switch A guide bar positioned so as to be able to move up and down while penetrating the upper and lower separating plates; a buoyancy body coupled to the lower end of the guide bar so as to be positioned in the first chamber; and A cam body formed on one side of the above guide bar and moving up and down together with the above guide bar A toilet cistern device, comprising: a valve moving body, one side of which is in contact with the cam body, and is pressurized by the cam body when the cam body moves up and down to slide.

5. In paragraph 4, The above cam body An opening operation unit that moves downward together with the guide bar as the water level of the first chamber decreases below the reference water level and pressurizes the valve movement body to slide it into an open state; and As the water level of the first chamber increases to a state exceeding the reference water level, the closing operation part moves upward together with the guide bar and pressurizes the valve movement body to slide it to a closed state. A toilet cistern device, including:

6. In paragraph 5, The above opening operating portion is formed on one side of the guide bar, and the contact surface that comes into contact with the valve moving body is formed to have a slope that moves away from the guide bar as it goes upward. A toilet cistern device, wherein the closing operating part is formed on the other side of the guide bar and the contact surface that comes into contact with the valve moving body is formed to have a slope that approaches the guide bar as it goes upward.

7. In paragraph 2, The above fill valve module has a discharge port formed to discharge washing water, A connecting member having two outlets is connected to the above outlet, A toilet cistern device, wherein washing water is supplied to the first chamber through the first outlet of the connecting member, and a connecting line is connected to the second outlet so that washing water is supplied to the second chamber through the second outlet of the connecting member.

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