A refill control system for a toilet flushing system

Abstract

The application provides a water replenishing control system of a toilet flushing system, a water tank for storing water, a water pumping device provided with a water pumping channel, the water pumping channel being connected with the water tank to supply water to a bowl of the toilet, a water inlet device provided with a water inlet channel, a water outlet channel and a water replenishing channel, the water outlet channel being connected with the water tank to supply water to the water tank, the water replenishing channel being connected with a water seal of the toilet to replenish water to the water seal of the toilet, and a control unit for controlling the on-off between the water inlet channel and the water outlet channel and the water replenishing channel, the control unit being connected with the water inlet channel and the water replenishing channel after the water pumping device finishes pumping water. The water inlet device is controlled by the control unit to replenish water to the water seal of the toilet through the water replenishing channel after the water pumping device finishes pumping water, the delay of water replenishing is increased, and the water replenishing amounts of the water seal under high pressure and low pressure are close to each other.

Description

Technical Field

[0001] This invention relates to the field of bathroom product technology, and in particular to a water replenishment control system for a toilet flushing system. Background Technology

[0002] like Figure 1 The existing solution of using a water pump to draw water from the tank to flush the toilet has the following problems when the inlet valve is needed to replenish the water seal of the toilet:

[0003] Since the water replenishment ratio of the existing water inlet device is fixed, the working time of the water pump is also fixed, and the existing water inlet device usually starts to fill water before the water pump finishes working, the remaining water level in the water tank is different under different pressure conditions. This results in different amounts of water replenished to the water tank during the process from when the water inlet valve starts to fill water from the remaining water level to when the water inlet valve stops filling water, which in turn leads to different amounts of water replenished to the water seal.

[0004] Taking a water pump operating time of 10 seconds as an example;

[0005] a. Under high pressure, assuming the inlet flow rate of the inlet valve is 12L / MIN, the inlet valve can take in 2L of water within 10s. After the water pump finishes working, the remaining water level in the tank is H1. At this time, the amount of water replenished by the inlet valve starting from the H1 water level is N1.

[0006] b. Under low pressure, assuming the inlet flow rate of the inlet valve is 1L / MIN, the inlet valve can take in 0.16L of water within 10s. After the water pump finishes working, the remaining water level in the tank is H2. At this time, the amount of water replenished by the inlet valve starting from the H2 water level is N2.

[0007] This shows that the amount of water replenished will be significantly different under high and low pressure conditions. Summary of the Invention

[0008] To address the aforementioned problems, the present invention aims to provide a water replenishment control system for a toilet flushing system. By setting a control unit to control the water inlet device to replenish water to the toilet water seal through the water replenishment channel after the water pumping device has finished pumping water, the water replenishment delay is increased, so that the water seal replenishment amount is nearly consistent under high and low pressure.

[0009] This invention is achieved by the following method: a water replenishment control system for a toilet flushing system, including a water tank for storing water;

[0010] A water pumping device, which has a water pumping channel inside, is connected to the water tank to supply water to the toilet bowl.

[0011] The water inlet device has an inlet channel, an outlet channel and a replenishment channel. The outlet channel is connected to the water tank to supply water to the water tank, and the replenishment channel is connected to the water seal of the toilet to replenish the water seal of the toilet.

[0012] The control unit controls the connection and disconnection between the water inlet channel, the water outlet channel, and the water replenishment channel. After the water pumping device finishes pumping, the control unit connects the water inlet channel and the water replenishment channel to replenish the water seal.

[0013] Preferably, after the pumping device starts pumping, the control unit delays for a preset time before connecting the water inlet channel to the water replenishment channel, and the preset time is not less than 6 seconds.

[0014] Preferably, the control unit includes a water-stopping component and a first float. The water-stopping component cooperates with the water inlet channel for opening and closing. The first float is connected to the water-stopping component. The first float rises or falls to drive the water-stopping component to close or open.

[0015] Preferably, the control unit further includes a water-stop cup, the first float is located inside the water-stop cup and rises or falls with the water level inside the water-stop cup, the first float falls after the water pumping device finishes pumping water, so as to drive the water-stop assembly to open the water inlet channel and supply water to the water replenishment channel.

[0016] Preferably, the stop cup is provided with a drain hole, the flow rate of the drain hole is less than the flow rate of the pumping channel, and during the pumping process, the stop cup, under the interception effect of the drain hole, makes the water level in the stop cup drop at a lower rate than the water level in the tank when the pumping device pumps water.

[0017] Preferably, by increasing the volume of the stop cup or decreasing the diameter of the drain hole, the first float falls after the pumping device finishes pumping water.

[0018] Preferably, the control unit further includes a water replenishing cup connected to the water stop cup. The water replenishing cup is located below the water stop level and is used to replenish water to the water stop cup when the water level in the water stop cup drops.

[0019] Preferably, the water replenishing cup is externally attached to the water stop cup. The water replenishing cup has a water replenishing hole that communicates with the water stop cup. During the water pumping process, the water in the water stop cup flows out through the drain hole, while the water in the water replenishing cup flows into the water stop cup through the water replenishing hole. This ensures that the first float remains floating before the water pumping device finishes pumping, and that the water stop assembly remains closed.

[0020] Preferably, the water inlet device is a water inlet valve, the water stop cup is installed on the water inlet valve, and the water stop assembly includes a first lifting rod and a connecting rod for controlling the opening and closing of the back pressure chamber on the water inlet valve. One end of the connecting rod is connected to the first float, and the other end of the connecting rod is connected to one end of the first lifting rod. The other end of the first lifting rod is connected to control the back pressure chamber.

[0021] Preferably, the water inlet device includes an inlet valve and a water replenishment regulator. The inlet valve has an inlet channel and a water supply channel connected to the inlet channel. The water replenishment regulator has an outlet channel and a water replenishment channel respectively connected to the water supply channel. The control unit includes a switching component and a second float. The second float is connected to the switching component. The second float moves up or down, causing the switching component to move. When the switching component moves to the first position, the water supply channel is connected to the outlet channel. When the switching component moves to the second position, the water supply channel is connected to the water replenishment channel.

[0022] Preferably, the water replenishment regulator is provided with a switching chamber, which has an inlet connected to the water supply channel, a first outlet connected to the water outlet channel, and a second outlet connected to the water replenishment channel. The switching element is movably disposed in the switching chamber. When the switching element moves to the first position, it opens the first outlet while closing or partially closing the second outlet, thereby connecting the water supply channel and the water outlet channel. When the switching element moves to the second position, it opens the second outlet while closing the first outlet, thereby connecting the water supply channel and the water replenishment channel.

[0023] Preferably, when the second float descends, it causes the switching component to move to the first position; when the second float rises, it causes the switching component to move to the second position; after the pumping device finishes pumping water, the position of the second float is higher than the remaining water level in the water tank, thereby causing the second float to be in a descending state.

[0024] The beneficial effects of this invention are as follows: This invention provides a water replenishment control system for a toilet flushing system. Compared with the prior art, this invention has at least the following technical effects: 1. By setting the control unit to control the water inlet device to delay the connection between the water tank and the toilet water seal, the water replenishment delay time is increased, thereby solving the problem that the water replenishment time is different when the water pressure is too low compared to when the water pressure is high. That is, after the water pumping device finishes pumping water, the water inlet channel is connected to the water replenishment channel; that is, the water replenishment is only started after the same amount of water is discharged from the water tank, so that the water replenishment amount is nearly consistent under high and low pressure conditions, making the water replenishment under high and low pressure stable; furthermore, the water replenishment ratio of the water inlet device used for water seal replenishment can be adjusted to a suitable size, avoiding excessive water replenishment and saving water resources. 2. By installing a water replenishment cup on the water stop cup, the water replenishment cup replenishes water to the water stop cup when the water level in the water tank drops, thereby delaying the drop in the water level in the water stop cup, which in turn delays the descent of the first float, and thus delays the opening of the water inlet valve of the water stop component; thus, it can be achieved that the water inlet valve opens the water inlet device after the water tank is pumped out, under both high and low pressure conditions, and the water replenishment volume is consistent under both high and low pressure conditions. 3. By connecting a water supply regulator to the water inlet (i.e., water supply channel) of the inlet valve, and installing a switching element on the water supply regulator to switch between water supply to the water tank or water supply to the water seal, a second float is installed on the water supply regulator to control the switching element to switch the water supply regulator to supply water to the outlet channel or the supply channel. When the second float rises, the water supply regulator supplies water to the supply channel; when the second float falls, the water supply regulator supplies water to the outlet channel. This ensures that water is supplied to the toilet's water seal only after the water tank has finished pumping water, thus achieving consistent water supply under high and low pressure conditions. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of an existing technology solution.

[0026] Figure 2 This is a schematic diagram of a specific embodiment of the water replenishment control system of a toilet flushing system according to the present invention.

[0027] Figure 3 This is another schematic diagram of a specific embodiment of the water replenishment control system of a toilet flushing system according to Embodiment 1 of the present invention.

[0028] Figure 4 This is a schematic diagram showing the connection between the water inlet device and the control unit in a specific embodiment of the water replenishment control system of the toilet flushing system of the present invention.

[0029] Figure 5 This is a schematic diagram showing another connection between the water inlet device and the control unit in a specific embodiment of the water replenishment control system of the toilet flushing system of the present invention.

[0030] Figure 6This is a schematic diagram of the water-stop cup structure of a control unit in a specific embodiment of the water replenishment control system of a toilet flushing system according to the present invention.

[0031] Figure 7 This is a schematic diagram of the overall scheme of a specific embodiment two of the water replenishment control system of the toilet flushing system of the present invention.

[0032] Figure 8 This is a schematic diagram showing the connection between the water replenishment regulator and the control unit in a specific embodiment two of the water replenishment control system of the toilet flushing system of the present invention.

[0033] Figure 9 This is a schematic diagram of another connection state between the water replenishment regulator and the control unit in a specific embodiment two of the water replenishment control system of the toilet flushing system of the present invention.

[0034] Reference numerals: 1-Water tank, 2-Pumping device, 21-Pumping channel, 3-Inlet device, 31-Outlet channel, 32-Replenishment channel, 33-Back pressure chamber, 34-Inlet valve, 35-Replenishment regulator, 351-Inlet, 352-First outlet, 353-Second outlet, 354-Switching chamber, 36-Water supply channel, 4-Control unit, 41-First float, 42-Water stop assembly, 421-First lifting rod, 422-Connecting rod, 43-Water stop cup, 44-Switching assembly, 441-Second lifting rod, 442-Swing block, 45-Second float, 46-Replenishment cup, 47-Counterweight cup, 5-Toilet bowl. Detailed Implementation

[0035] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0036] Example 1

[0037] Please see Figures 2 to 6 A water replenishment control system for a toilet flushing system.

[0038] Water tank 1, used to store water;

[0039] The water pumping device 2 has a water pumping channel 21 inside, which is connected to the water tank 1 to supply water to the toilet bowl 5.

[0040] The water inlet device 3 has an inlet channel, an outlet channel 31, and a replenishment channel 32. The outlet channel 31 is connected to the water tank 1 to supply water to the water tank 1, and the replenishment channel 32 is connected to the water seal of the toilet to replenish the water seal of the toilet. The control unit 4 is used to control the connection and disconnection between the inlet channel and the outlet channel 31 and the replenishment channel 32. When the water pumping device 2 finishes pumping water, the control unit 4 connects the inlet channel and the replenishment channel 32 to replenish the water seal. By setting the control unit 4 to delay the connection between the water inlet device 3 and the water tank 1 and the toilet water seal, the water replenishment delay time is increased to solve the problem of different water replenishment times caused by low water pressure compared to high water pressure. Specifically, after the water pumping device 2 finishes pumping, the water inlet channel is connected to the water replenishment channel 32; that is, water replenishment is only started after the same amount of water has been discharged from the water tank 1. This ensures that the water replenishment volume is nearly consistent under high and low pressure conditions, stabilizing water replenishment under both conditions. Furthermore, the water replenishment ratio can be adjusted to a suitable level, avoiding excessive water replenishment and conserving water resources. The water inlet channel connects to an external water source.

[0041] Preferably, after the pumping device 2 starts pumping, the control unit 4 connects the water inlet channel and the water replenishment channel 32 after a preset time delay, the preset time being no less than 6 seconds. This delay in starting the water replenishment ensures that the amount of water replenished to the toilet water seal is approximately the same under both high and low pressure conditions.

[0042] Please see Figures 3 to 6 Preferably, the control unit 4 includes a water-stopping component 42 and a first float 41. The water-stopping component 42 cooperates with the opening and closing of the water inlet channel. The first float 41 is connected to the water-stopping component 42, and the first float 41 rises or falls to drive the water-stopping component 42 to close or open. The first float 41 and the water-stopping component 42 cooperate to delay the opening of the water inlet channel of the water inlet device 3, realizing delayed water inlet and delayed water replenishment of the water inlet valve, so that the replenishment water volume is consistent under high and low water pressure.

[0043] Please see Figures 3 to 6 Preferably, the control unit 4 further includes a water-stop cup 43. The first float 41 is located inside the water-stop cup 43 and rises or falls with the water level inside the water-stop cup 43. The first float 41 falls after the water pumping device 2 finishes pumping water, thereby driving the water-stop assembly 42 to open the water inlet channel and supply water to the water replenishment channel 32. The water-stop cup 43 can control the first float 41 to fall after the water pumping device 2 finishes pumping water.

[0044] Preferably, the stop cup 43 is provided with a drain hole, and the flow rate of the drain hole is less than the flow rate of the pumping channel 21. During the pumping process, the stop cup 43, under the interception effect of the drain hole, causes the water level in the stop cup 43 to drop at a lower rate than the water level in the tank 1 when the pumping device 2 is pumping water. Delaying the drop in water level in the stop cup 43, and thus delaying the drop of the first float 41, can further delay the opening of the inlet valve by the stop assembly 42; thus, it can be achieved that the inlet device 3 is opened after the water tank 1 has finished pumping water under both high and low pressure conditions, and the water supply volume for both high and low pressure water pressure can be consistent.

[0045] In other embodiments, the first float 41 can be lowered after the pumping device 2 finishes pumping water by increasing the volume of the stop cup 43 or decreasing the diameter of the drain hole.

[0046] Please see Figures 3 to 6 Preferably, the control unit 4 further includes a replenishing cup 46 connected to the stop cup 43. The replenishing cup 46 is located below the stop water level and is used to replenish water to the stop cup 43 when the water level in the water tank 1 drops. The replenishing cup 46 is externally attached to the stop cup 43 and has a replenishing hole connected to the stop cup 43. During the pumping process of the pumping device 2, water from the stop cup 43 flows out through the drain hole, while water from the replenishing cup 46 flows into the stop cup 43 through the replenishing hole, so that the first float 41 remains floating before the pumping device 2 finishes pumping, and the stop assembly 42 remains closed. By providing a water replenishment cup 46 on the water stop cup 43, the water replenishment cup 46 replenishes water to the water stop cup 43 when the water level in the water tank 1 drops, thereby delaying the drop in the water level in the water stop cup 43, which in turn delays the descent of the first float 41, and thus delays the opening of the water inlet channel by the water stop component 42. This ensures that the water inlet device 3 is opened after the water tank 1 is pumped out, even under both high and low pressure conditions, and that the water replenishment volume is consistent between high and low pressure.

[0047] Please see Figures 2 to 6 Preferably, the water inlet device 3 is a water inlet valve, and the water stop cup 43 is installed on the water inlet valve. The water stop assembly 42 includes a first lifting rod 421 and a connecting rod 422 that control the opening and closing of the back pressure chamber 33 on the water inlet valve. One end of the connecting rod 422 is connected to the first float 41, and the other end of the connecting rod 422 is connected to one end of the first lifting rod 421. The other end of the first lifting rod 421 is connected to control the back pressure chamber 33. After the first float 41 moves down with a delay, it drives the first lifting rod 421 and the connecting rod 422 to move, opening the back pressure chamber 33. The water inlet valve opens and water enters the water tank 1 through the water outlet channel 31 according to the set ratio, and the other part enters the toilet water seal through the water replenishment channel 32.

[0048] Please see Figure 3 Preferably, the water pumping device 2 is a water pump, which pumps the water in the water tank 1 to the toilet bowl 5.

[0049] This embodiment has the following working principle:

[0050] When the water level in water tank 1 drops, the water in stop cup 43 drains into water tank 1 through the drain hole. At the same time, water from replenishment cup 46 flows into stop cup 43 to slow the drop in water level until all the water in replenishment cup 46 flows into stop cup 43. At this point, water tank 1 is pumped out. Afterward, the water level in stop cup 43 gradually drops, and the first float 41 begins to drop along with the water level in stop cup 43, thereby actuating the first lifting rod 42. When the linkage 422 moves, it opens the back pressure chamber 33 of the inlet valve, opening the inlet channel of the inlet valve. The inlet valve simultaneously discharges water into the outlet channel 31 and the inlet channel according to a set ratio, ensuring that the water seal is adequately replenished while the water in the tank 1 reaches the stop water level. When the tank 1 reaches the stop water level, the first float 41 floats up, closing the back pressure chamber 33 and the inlet valve closes. At this time, the water supply cup 46 connected to the stop water cup 43 is submerged below the stop water surface, and the water supply cup 46 completes its water replenishment. Because the stop water cup 43 and the water supply cup 46 work together to delay the opening time of the inlet valve, the inlet valve opens to replenish water to the water seal and tank 1 only after the pumping device 2 has finished pumping water under both high and low pressure conditions. This ensures that the water supply to the water seal remains consistent under both high and low pressure conditions, thus conserving water resources.

[0051] Example 2

[0052] Please see Figures 7 to 9 The difference between this embodiment and Embodiment 1 is that: the water inlet device 3 includes an inlet valve 34 and a water replenishment regulator 35. The inlet valve 34 is provided with an inlet channel and a water supply channel 36 connected to the inlet channel. The water replenishment regulator 35 is provided with an outlet channel 31 and a water replenishment channel 32 respectively connected to the water supply channel 36. The control unit 4 includes a switching element 44 and a second float 45. The second float 45 is connected to the switching element 44. The second float 45 floats up or falls, causing the switching element 44 to move. When the switching element 44 moves to the first position (e.g., Figure 8 The water supply channel 36 is connected to the water outlet channel 31. When the switching component 44 moves to the second position (e.g. Figure 9The water supply channel 36 is connected to the water replenishment channel 32. Water is replenished to the water tank 1 and the toilet water seal via the inlet valve 34 and the water replenishment regulator 35. The water replenishment regulator 35 is equipped with a switching element 44 and a second float 45. The water flow from the inlet of the inlet valve 34 into the water replenishment regulator 35 is controlled so that when the water level in the water tank 1 is greater than or equal to a specified water level, the water flows into the water replenishment channel 32 (i.e., when the second float 45 rises); when the water level is less than or equal to the specified water level, the water flows into the outlet channel 31 (i.e., when the second float 45 falls), replenishing the water tank. The remaining structure is described in Embodiment 1 and will not be elaborated further.

[0053] Please refer to the figure. Figure 8 , Figure 9 Preferably, the water supply regulator 35 is provided with a switching chamber 354. The switching chamber 354 is provided with an inlet 351 connected to the water supply channel 36, a first outlet 352 connected to the water outlet channel 31, and a second outlet 353 connected to the water supply channel 32. The switching member 44 is movably disposed in the switching chamber 354. When the switching member 44 is moved to the first position, the switching member 44 opens the first outlet 352 and closes or partially closes the second outlet 353 at the same time, so that the water supply channel 36 is connected to the water outlet channel 31. When the switching member 44 is moved to the second position, the switching member 44 opens the second outlet 353 and closes the first outlet 352 at the same time, so that the water supply channel 36 is connected to the water supply channel 32.

[0054] Please see Figures 7 to 9 Preferably, when the second float 45 falls, it causes the switching component 44 to move to the first position; when the second float 45 rises, it causes the switching component 44 to move to the second position. After the pumping device 2 finishes pumping water, the position of the second float 45 is higher than the remaining water level of the water tank 1, thereby causing the second float 45 to be in a falling state.

[0055] Please see Figures 7 to 9 Preferably, the switching component 44 includes a swing block 442, the second float 45 is movably mounted on the water supply regulator 35, the second float 45 is connected to the second lifting rod 441, the second lifting rod 441 is connected to the swing block 442, the swing block 442 is disposed in the switching cavity, and the swing block 442 swings as the second lifting rod 441 moves; Figure 9 As shown, when the second float 45 floats up, the second lifting rod 441 lifts, causing the swing block 442 to press against the first outlet 352, thus sealing the first outlet 352 and opening the second outlet 353. This means the switching chamber 354 connects to the water supply channel 32, and disconnects from the water outlet channel 31. Figure 8As shown, when the second float 45 falls, the second lifting rod 441 descends, causing the swing block 442 to press against the second outlet 353, thus opening the first outlet 352 and sealing the second outlet 353. This connects the switching chamber 354 to the water outlet channel 31 and disconnects it from the water supply channel 32. A counterweight cup 47 is provided on the second lifting rod 441. When the water tank drains, the second float 45 falls faster under the action of the counterweight cup 47, preventing the switching element 44 from failing to switch due to excessive water pressure in the switching chamber 354. This also prevents water from overflowing from the water supply channel 32 to the water outlet channel 31 when the water supply pressure is too high, thus ensuring stable water supply.

[0056] This embodiment has the following working principle:

[0057] When the water pump operates, the water level in tank 1 drops and is pumped into the toilet bowl 5. Simultaneously, the inlet valve 34 begins to supply water. As the water level in tank 1 decreases, the second float 45 moves downwards, causing the second lifting rod 441 to move. This, in turn, causes the swing block 442 to swing to the first position (i.e., the swing block 442 closes or partially closes the second outlet 353), connecting the water supply channel 36 and the outlet channel 31 of the inlet valve 34, ensuring that all water entering the inlet valve 34 flows into the tank 1 (e.g.,...). Figure 8 (As shown); After the pumping ends, the water level in tank 1 gradually rises a certain distance, and then the water level continues to rise, causing the second float 45 to move upward, which in turn causes the second lifting rod 441 to move upward, thereby driving the swing block 442 to swing to the second position (i.e., the swing block 442 closes or partially closes the first outlet 352). The water supply channel 36 connects to the water replenishment channel 32 to replenish the toilet's water seal. At this time, part of the water entering the inlet valve 34 replenishes the water tank 1, and the other part is introduced into the water replenishment regulator through its water replenishment port to replenish the toilet's water seal (as shown). Figure 9 As shown, when water is added to the water tank 1 through the inlet valve 34 to the stop water level, the water seal replenishment is completed simultaneously, and the inlet valve 34 stops, ceasing the replenishment of water to the water tank 1 and the water seal. Therefore, water seal replenishment only begins after the water tank 1 has been filled to a certain height, meaning water is only replenished after pumping is complete. This ensures consistent water seal replenishment under both high and low water pressure conditions, avoiding water waste.

[0058] Several points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change.

[0059] Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other.

[0060] Finally, the above description is only a preferred embodiment of the present invention, and the scope of protection of the present invention is not limited to the above embodiments. All technical solutions that fall within the scope of the present invention are within the scope of protection of the present invention.

[0061] It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of this invention should also be considered within the scope of protection of this invention.

Claims

1. A water replenishment control system for a toilet flushing system, characterized in that, include: A water tank, used to store water; A water pumping device is provided, which is connected to the water tank to supply water to the toilet bowl. The water inlet device has an inlet channel, an outlet channel and a replenishment channel. The outlet channel is connected to the water tank to supply water to the water tank, and the replenishment channel is connected to the water seal of the toilet to replenish the water seal of the toilet. The control unit is used to control the connection and disconnection between the water inlet channel, the water outlet channel and the water replenishment channel. After the water pumping device finishes pumping, the control unit connects the water inlet channel and the water replenishment channel to replenish the water seal.

2. The water replenishment control system for a toilet flushing system according to claim 1, characterized in that, After the pumping device starts pumping water, the control unit delays for a preset time before connecting the water inlet channel to the water replenishment channel. The preset time is not less than 6 seconds.

3. The water replenishment control system for a toilet flushing system according to claim 1, characterized in that, The control unit includes a water-stopping component and a first float. The water-stopping component is in cooperation with the water inlet channel for opening and closing. The first float is connected to the water-stopping component. The first float rises or falls to drive the water-stopping component to close or open.

4. The water replenishment control system for a toilet flushing system according to claim 3, characterized in that, The control unit also includes a water-stop cup. The first float is located inside the water-stop cup and rises or falls with the water level inside the water-stop cup. After the water pumping device finishes pumping water, the first float falls to drive the water-stop assembly to open the water inlet channel and then supply water to the water replenishment channel.

5. The water replenishment control system for a toilet flushing system according to claim 4, characterized in that, The stop cup is provided with a drain hole. The flow rate of the drain hole is less than the flow rate of the pumping channel. During the pumping process, the stop cup, under the interception effect of the drain hole, makes the water level in the stop cup drop at a lower rate than the water level in the tank when the pumping device is pumping water.

6. The water replenishment control system for a toilet flushing system according to claim 5, characterized in that, By increasing the volume of the stop cup or decreasing the diameter of the drain hole, the first float falls after the pumping device finishes pumping water.

7. The water replenishment control system for a toilet flushing system according to claim 5, characterized in that, The control unit also includes a water replenishing cup connected to the water stop cup. The water replenishing cup is located below the water stop level and is used to replenish water to the water stop cup when the water level in the water stop cup drops.

8. The water replenishment control system for a toilet flushing system according to claim 7, characterized in that, The water replenishing cup is externally attached to the water stop cup. The water replenishing cup has a water replenishing hole that communicates with the water stop cup. During the water pumping process, the water in the water stop cup flows out through the drain hole, while the water in the water replenishing cup flows into the water stop cup through the water replenishing hole. This ensures that the first float remains floating before the water pumping device finishes pumping, and that the water stop assembly remains closed.

9. The water replenishment control system for a toilet flushing system according to claim 4, characterized in that, The water inlet device is a water inlet valve, and the water stop cup is installed on the water inlet valve. The water stop assembly includes a first lifting rod and a connecting rod for controlling the opening and closing of the back pressure chamber on the water inlet valve. One end of the connecting rod is connected to the first float, and the other end of the connecting rod is connected to one end of the first lifting rod. The other end of the first lifting rod is connected to control the back pressure chamber.

10. The water replenishment control system for a toilet flushing system according to claim 1, characterized in that, The water inlet device includes an inlet valve and a water replenishment regulator. The inlet valve has an inlet channel and a supply channel connected to the inlet channel. The water replenishment regulator has an outlet channel and a water replenishment channel respectively connected to the supply channel. The control unit includes a switching element and a second float. The second float is connected to the switching element. The second float moves up or down, causing the switching element to move. When the switching element moves to the first position, the supply channel is connected to the outlet channel. When the switching element moves to the second position, the supply channel is connected to the water replenishment channel.

11. The water replenishment control system for a toilet flushing system according to claim 10, characterized in that, The water supply regulator is provided with a switching chamber, which has an inlet connected to the water supply channel, a first outlet connected to the water outlet channel, and a second outlet connected to the water supply channel. The switching element is movably disposed in the switching chamber. When the switching element moves to the first position, it opens the first outlet and closes or partially closes the second outlet, thereby connecting the water supply channel with the water outlet channel. When the switching element moves to the second position, it opens the second outlet and closes the first outlet, thereby connecting the water supply channel with the water supply channel.

12. The water replenishment control system for a toilet flushing system according to claim 10, characterized in that, When the second float descends, it causes the switching component to move to the first position. When the second float rises, it causes the switching component to move to the second position. After the pumping device finishes pumping water, the position of the second float is higher than the remaining water level in the water tank, thus causing the second float to be in a descending state.

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