Sectional type automatic flushing water-saving closestool water tank device

Abstract

The invention discloses a sectional type automatic flushing water-saving closestool water tank device. An inner water tank is divided into a brush ring water tank, a strong flushing water tank and a water supplementing water tank through partition plates. The outer water tank internal brushing ring water valve controls the water path to start according to the air pressure change, and water in the outer water tank is pumped by negative pressure to increase the toilet brushing ring; the brush ring function causes the brush ring water valve air pressure to change again according to the water level change of the brush ring water tank, and the brush ring function is closed. A strong flushing valve in the outer water tank starts a strong flushing function on the urinal according to the change of the water level of the strong flushing water tank, and proportionally supplements water to the outer water tank; a water replenishing valve in the outer water tank is delayed to start with the strong flushing function of the strong flushing valve according to the change of the water level of the water replenishing water tank, and the water replenishing valve synchronously replenishes water to the strong flushing water tank, controls the strong flushing valve to be closed, replenishes water to the outer water tank and performs second-time ring brushing, water replenishing and water sealing on the inner surface of the urinal. Compared with the prior art, the technical scheme of the invention can effectively ensure the continuity of the overall control process and the reliability of the overall control of the closestool water tank device.

Description

Technical Field

[0001] The present invention relates to the technical field of toilet devices, and in particular to a segmented automatic flushing and water-saving toilet water tank device. Background Art

[0002] Toilets are sanitary fixtures commonly used in daily life, typically consisting of a water tank, a bowl, and built-in flushing pipes. Traditional toilets have a water storage tank located behind the bowl. When the user flushes, they press a switch located at the top, which opens the drain valve. The water stored in the tank, due to its gravitational potential energy, flows through the flushing pipes, flushing the waste into the bowl.

[0003] To achieve a compact overall structure, smart toilets eliminate the water storage tanks found in traditional toilets. Instead, they implement flushing by configuring various electric switches, such as a brush ring switch, a power flush switch, and a water refill switch, which operate in a specific logical sequence to achieve the toilet's various functions. However, the inclusion of multiple control switches results in an excessive number of electrical components within the toilet, complicating the structure. Furthermore, a detection module must be installed within the water tank to activate the corresponding control program. This control logic complicates the flushing process and the internal structure of the water tank, leading to redundant procedures and increased maintenance costs.

[0004] To simplify the flushing structure of smart toilets, existing technologies divide the water tank into several components, each of which works in conjunction with the other. However, during a normal flush, the toilet typically operates through a brushing cycle, a forced flush, and a water replenishment process. In existing toilets, users must press a switch to activate the brushing cycle. To terminate the brushing cycle, they must manually press the switch again, resulting in a disjointed operation. If the user forgets to press the switch again, water will continue to flush the bowl, wasting a significant amount of water. Simultaneously, during the brushing cycle, a bypass is provided to replenish the brushing cycle water inlet valve in real time, and the water level dynamically controls the closure of the brushing cycle water inlet valve. However, this control relationship is not associated with the forced flushing process, resulting in a lack of continuity between the two operations and low overall efficiency. Summary of the Invention

[0005] The main purpose of the present invention is to propose a segmented automatic flushing and water-saving toilet tank device, aiming to ensure the continuity of the overall control process of the toilet tank device and the reliability of the overall control.

[0006] To achieve the above objectives, the present invention proposes a segmented automatic flushing water-saving toilet tank device, comprising an outer water tank and a built-in inner water tank, wherein the inner water tank is divided into a brush ring water tank, a strong flush water tank and a water replenishment water tank by a partition;

[0007] The brush ring water valve inside the external water tank controls the water circuit to start according to the change of air pressure, and uses negative pressure to extract the water inside the external water tank to incrementally brush the toilet ring; the brush ring function triggers the air pressure of the brush ring water valve to change again according to the change of water level in the brush ring water tank, so as to turn off the brush ring function;

[0008] The strong flush valve inside the external water tank starts the strong flush function of the toilet bowl according to the water level change of the strong flush tank, and replenishes water to the external water tank according to the proportional value;

[0009] The water replenishment valve inside the external water tank changes with the water level in the replenishment tank, and there is a delay in starting the strong flush function of the strong flush valve. The water replenishment valve synchronously replenishes water to the strong flush tank and controls the closing of the strong flush valve, replenishes water to the external water tank, and performs a second brushing and water seal on the inner surface of the toilet bowl.

[0010] Preferably, the user inputs gas into the brush ring water valve by pumping air, causing the internal structure of the brush ring water valve to undergo elastic expansion and axial actuation, thereby changing the pressure state of the pressure-maintaining chamber, and the water inlet pipe passes through the brush ring water valve and is input into the toilet brush ring pipeline for brushing the ring.

[0011] Preferably, the brush ring water valve includes a top shell, an intermediate shell, a bottom shell and a shell seat which are axially arranged in sequence. An expansion plate is provided in the top shell to form an expansion cavity. A pressing plate is provided inside the intermediate shell, and the pressing plate is connected to the central axis passing through the intermediate shell. A first pressure-maintaining cavity is formed between the bottom shell and the intermediate shell. A sealing rubber ring is provided at the bottom of the central axis to change the pressure-maintaining state of the first pressure-maintaining cavity. A pressure-maintaining sealing gasket is provided at the bottom of the bottom shell to form a second pressure-maintaining cavity. A vent is provided in the bottom shell to connect the first pressure-maintaining cavity and the second pressure-maintaining cavity.

[0012] Preferably, the top of the strong flush water valve is swingably connected to the strong flush buoy through a strong flush connecting rod, the strong flush buoy extends into the interior of the strong flush water tank, and a strong flush water tank hole is provided at the bottom of the strong flush water tank; the top of the water replenishment valve is swingably connected to the water replenishment buoy through a water replenishment connecting rod, the water replenishment buoy extends into the interior of the water replenishment tank, and a water replenishment tank hole is provided at the bottom of the water replenishment tank, the inner diameter of the water replenishment tank hole is smaller than the inner diameter of the strong flush water tank hole, and the water replenishment valve is connected to the strong flush water tank through a water replenishment pipe.

[0013] Preferably, the brush ring water valve is connected to the water supply and drainage pipe of the water supply valve through a first water pipe, a Venturi tube, and a second water pipe, and at least the Venturi tube extends into the interior of the outer water tank; the water supply valve supplies water to the outer water tank through the second water pipe and the Venturi tube, and the water supply and drainage pipe is connected to the brush ring pipeline inside the toilet bowl.

[0014] Preferably, the maximum water level of the strong flush water tank is higher than the maximum water level of the water replenishment tank.

[0015] Preferably, the water supply drain pipe connected to the water supply valve is equipped with a first proportional water valve set upward, the strong flushing drain pipe connected to the strong flushing valve is equipped with a second proportional water valve set upward, and the brush ring drain pipe connected to the brush ring water valve is equipped with a third proportional water valve set downward, and the water flow direction and flow rate are controlled by the proportional water valves.

[0016] Preferably, the first proportional water valve, the second proportional water valve and the third proportional water valve include an inlet valve body for limiting the direction of water flow. The inlet valve body is also connected to a outlet valve plate. There is a gap between the outlet valve plate and the pipeline, and a small amount of water flows through the gap.

[0017] Preferably, the inner water tank is built into the outer water tank, the inner water tank is connected to the inner middle part of the outer water tank, and there is a water accommodating space between the bottom of the inner water tank and the bottom of the outer water tank.

[0018] The technical solution of the present invention has the following advantages over the prior art:

[0019] The technical solution of the present invention is a segmented automatic flushing water-saving toilet tank device with brush ring, strong flushing and water replenishing functions. The start and stop of the brush ring related structure are controlled by the change of air pressure, and the strong flushing process is controlled by the change of water level in the strong flushing water tank, and the strong flushing process is terminated by replenishing water. The water replenishment process is carried out in a multi-channel manner in a timely manner, thereby realizing the overall control process continuity and overall control reliability of the toilet tank device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0021] Figure 1 This is a schematic diagram of the external structure of the segmented automatic flushing water-saving toilet tank device of the present invention;

[0022] Figure 2 Schematic diagram of the internal structure of the segmented automatic flushing water-saving toilet tank device of the present invention;

[0023] Figure 3 Another schematic diagram of the internal structure of the segmented automatic flushing water-saving toilet tank device of the present invention;

[0024] Figure 4 This is a schematic diagram of the outer structure of the inner water tank of the present invention;

[0025] Figure 5A side view of the internal structure of a segmented automatic flushing water-saving toilet tank device;

[0026] Figure 6 This is a partial structural exploded view of a segmented automatic flushing water-saving toilet tank device;

[0027] Figure 7 Schematic diagram of the three-dimensional structure with the central axis.

[0028] Description of Figure Numbers:

[0029] 1. Outer water tank; 101. Top shell; 102. Bottom shell; 2. Inner water tank; 21. Insert groove; 3. Brush ring water tank; 31. Brush ring water tank hole; 32. Brush ring water valve; 321. Top shell; 3211. Air inlet; 3212. Air outlet; 3213. Air inlet nozzle; 322. Intermediate shell; 3221. Axial center hole; 323. Bottom shell; 3231. Vent; 324. Expansion plate; 3241. Expansion cavity; 325. Pressing plate; 326. Shell seat; 327. First pressure-maintaining cavity; 328. Second pressure-maintaining cavity; 329. Pressure-maintaining seal; 3210. Center axis; 32101. Stepped shaft section; 32102 , spring; 32103, sealing rubber ring; 33, brush ring drain pipe; 34, brush ring connecting rod; 35, brush ring float; 4, strong flush water tank; 41, strong flush water tank hole; 42, strong flush water valve; 43, strong flush drain pipe; 44, strong flush connecting rod; 45, strong flush float; 5, make-up water tank; 51, make-up water tank hole; 52, make-up water valve; 53, make-up water drain pipe; 54, make-up water connecting rod; 55, make-up water float; 56, make-up water pipe; 6, water inlet pipe; 7, first water pipe; 8, Venturi tube; 81, water inlet; 9, second water pipe; 11, first proportional water valve; 12, second proportional water valve; 13, third proportional water valve; 14, water supply valve body; 15, water discharge valve plate.

[0030] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0032] The present invention provides a segmented automatic flushing and water-saving toilet tank device.

[0033] See Figure 1-7In the embodiment of the present invention, the segmented automatic flushing water-saving toilet water tank device includes an external water tank 1 arranged outside, and the external water tank 1 includes a top shell 101 and a bottom shell 102. The internal accommodating space of the external water tank 1 is formed by assembling the top shell 101 and the bottom shell 102 together.

[0034] An inner water tank 2 is provided within the outer water tank 1. The inner water tank 2 can be integrally formed with the outer water tank 1 or prefabricated and installed within the outer water tank 1. Preferably, the inner water tank 2 is installed within the outer water tank 1 by direct mounting, for example by providing corresponding mounting grooves 21 on the outer surface of the inner water tank 2 and corresponding mounting bumps on the inner surface of the outer water tank 1, thereby securing the inner water tank 2 and the outer water tank 1 to each other through mounting. Alternatively, the inner water tank 2 can be longitudinally mounted within the outer water tank 1, and the inner water tank 2 can move vertically along the longitudinal direction of the outer water tank 1, while the horizontal movement of the inner water tank 2 is restricted by the outer water tank 1.

[0035] In the technical solution of the present invention, the inner water tank 2 is divided into a brush ring water tank 3, a strong flush water tank 4 and a water replenishment tank 5 by a partition 21 along the same dimensional direction, wherein the partition between the brush ring water tank 3 and the strong flush water tank 4 is provided with a through hole, so that the water between the two water tanks can flow into each other, that is, the water in the brush ring water tank 3 can flow into the strong flush water tank 4, or the water in the strong flush tank 4 can flow into the brush ring water tank 3. In addition, the bottom surfaces of the brush ring water tank 3, the strong flush water tank 4 and the water replenishment tank 5 are respectively provided with a brush ring water tank hole 31, a strong flush water tank hole 41 and a water replenishment tank hole 51. The bottom holes of the above three water tanks can realize the downward flow of the water inside them, that is, the water in the inner water tank 2 can pass through the above bottom holes and enter the outer water tank 1.

[0036] In order to achieve different water flow rates in the above three water tanks, the inner diameter of the strong flush water tank hole 41 is larger than the inner diameter of the water supply tank hole 51. That is, when the water level at the bottom of the outer water tank 1 is lower than the bottom of the inner water tank 2, the water inside the inner water tank 2 can flow from the inner water tank 2 to the outer water tank 1, and because the inner diameters of the bottom holes are different, the water level of the strong flush water tank 4 decreases faster than the water level of the water supply tank 5.

[0037] Preferably, in other embodiments of the present invention, the inner diameters of the strong flush water tank hole 41 and the brush ring water tank hole 31 may be the same or different. If the inner diameters of the two are different, different water flow rates in the strong flush water tank 4 and the brush ring water tank 3 can also be achieved.

[0038] In the technical solution of the present invention, a brush ring water valve 32, a strong flush water valve 42 and a water replenishment valve 52 are also provided inside the outer water tank 1, wherein the brush ring water valve 32, the strong flush water valve 42 and the water replenishment valve 52 are connected by the same water inlet pipe 6, that is, the inlet ends of the brush ring water valve 32, the strong flush water valve 42 and the water replenishment valve 52 are respectively connected to the same water inlet pipe 6 and water is inducted.

[0039] In addition, the outlet end of the brush ring water valve 32 is connected to the brush ring drain pipe 33, the outlet end of the strong flush water valve 42 is connected to the strong flush drain pipe 43, and the outlet end of the water supply valve 52 is connected to the water supply drain pipe 53. The bottom end of the brush ring drain pipe 33 is connected to the bottom end of the water supply drain pipe 53 through the first water pipe 7, the Venturi tube 8, and the second water pipe 9 in sequence. The water flow direction of the Venturi tube 8 flows from the first water pipe 7 to the second water pipe 9, and a plurality of water inlets 81 are provided on the surface of the Venturi tube 8. The pipeline composed of the first water pipe 7, the Venturi tube 8, and the second water pipe 9 extends into the interior of the outer water tank 1 in a circuitous manner. When the interior surface of the toilet bowl needs to be brushed, water flows through the first water pipe 7, the venturi tube 8, and the second water pipe 9. The water inside the outer water tank 1 enters the second water pipe 9 through the water inlet 81 on the surface of the venturi tube 8, then flows through the outlet at the top of the water supply and drainage pipe 53 to the brushing pipe of the toilet bowl, spraying the water on the interior surface of the toilet bowl to brush the bowl. The provision of the venturi tube 8 accelerates the suction of water inside the outer water tank 1, achieving a more efficient brushing function.

[0040] The brush ring water valve 32 of the technical solution of the present invention is connected to the brush ring float 35 through the brush ring connecting rod 34, the strong flushing valve 42 is connected to the strong flushing float 45 through the strong flushing connecting rod 44, and the water replenishing valve 52 is connected to the water replenishing float 55 through the water replenishing connecting rod 54. When the toilet device is in the non-flushing state, the brush ring float 35 is in the highest floating position and the brush ring water valve 35 is in the closed state, that is, the same water inlet pipe 6 cannot take in water through the brush ring water valve 32 and perform the brushing function.

[0041] When the toilet is flushing, the brush float 35 reaches the first position as the water level in the inner water tank 2 decreases. Since the brush valve 32 is open during the flushing state, the same water inlet pipe can supply water through the brush valve 32 to the first water pipe 7, the venturi tube 8, and the second water pipe 9. The venturi tube 8 can also extract water originally in the outer water tank 1 and increase its delivery to the water supply and drainage pipe 33, and then pass through the brush pipe connected to the water supply and drainage pipe 33 to perform the brushing function. When the toilet is flushing, as the water level in the inner water tank 2 decreases and reaches the first position, the brush float 35 recloses the brush valve 32 via the brush connecting rod 34 to stop the corresponding brushing function.

[0042] See Figure 6 The top shell 321 is provided with an expansion piece 324, and the expansion piece 324 can form an expansion cavity between the top shell 321 and the top shell 321. The top shell 321 is provided with an air inlet 3211 and an air outlet 3212. The air inlet 3211 is connected to one end of an external air inlet pipe (not shown in the figure) through an air inlet nozzle 3213, and the other end of the air inlet pipe is connected to an air pumping device (not shown in the figure). The air pumping device is installed on the top plate of the water tank of the toilet device. When the user needs to flush, by pressing the air pumping device, gas is injected into the expansion cavity between the expansion piece 324 and the top shell 321 through the air pumping device and the air inlet pipe, so that the expansion piece 324 expands downward. At this time, the air outlet 3212 is pressed by the sealing piece at the other end of the brush ring connecting rod 34 to close the outward-protruding air outlet 3212.

[0043] See Figure 6 and 7 , and an axial center hole 3221 is provided in the center of the intermediate shell 322, and a center shaft 3210 is provided in the axial center hole 3221, and a step shaft section 32101 is provided at the top of the center shaft 3210, which is positioned and connected to the pressing piece 325, and a sealing rubber ring 32103 is provided at the bottom of the center shaft 3210, and a spring 32102 is provided in the middle sleeve of the center shaft 3210, one end of the spring 32102 is supported on the bottom of the step shaft section 32101, and the other end of the spring 32102 is supported on the bottom plate of the intermediate shell 322. When the center shaft 3210 is not subjected to downward pressure, the spring 32102 elastically pushes the center shaft 3210 to move upward, and the inner diameter of the axial center hole 3221 and the outer diameter of the center shaft 3210 are sealed together by the sealing rubber ring 32103.

[0044] Preferably, the top surface of the pressing plate 325 of the technical solution of the present invention is a curved surface, so when the expansion plate 324 expands downward, its bottom surface is also a curved surface. During the downward expansion of the expansion plate 324, the pressing plate 325 is pushed downward in a point contact manner, thereby overcoming the elastic force of the spring 32102, and the center axis 3210 moves downward, thereby opening the axial center hole 3221.

[0045] In addition, a shell seat 326 is provided below the bottom shell 323 of the technical solution of the present invention, which is connected to the same water inlet pipe 6. The top of the bottom shell 323 is connected to the intermediate shell 322 to form a first pressure-maintaining cavity 327. A pressure-maintaining sealing gasket 329 is provided between the bottom shell 323 and the shell seat 326, wherein the pressure-maintaining sealing gasket 329 is connected to the bottom of the bottom shell 323 by center sliding, and a second pressure-maintaining cavity 328 is formed between the pressure-maintaining sealing gasket 329 and the bottom shell 323. The bottom shell 323 is provided with an air vent 3231 to connect the first pressure-maintaining cavity 327 and the second pressure-maintaining cavity 328. When the expansion cavity 3241 does not expand, that is, the pressing plate 325 does not move downward, the sealing rubber ring 32103 seals the top of the first pressure-maintaining cavity 327, and the first pressure-maintaining cavity 327 and the second pressure-maintaining cavity 328 are in a pressure-maintaining state at the same time. The pressure-maintaining sealing gasket 329 can close the connecting pipeline between the shell seat 326 and the same water inlet pipe 6, that is, water cannot flow to the brush ring drain pipe 33 through the same water inlet pipe 6.

[0046] When the user presses the inflation device, gas is injected into the expansion cavity 3241 between the expansion piece 324 and the top shell 321, causing the expansion piece 324 to expand and deform downward, pushing the pressing piece 325 downward through point contact, so that the sealing rubber ring 32103 cannot seal the top of the first pressure-maintaining cavity 327, and the gas inside the first pressure-maintaining cavity 327 leaks upward. Subsequently, the gas inside the second pressure-maintaining cavity 328 also flows upward into the first pressure-maintaining cavity 327 through the vent 3231. At this time, the first pressure-maintaining cavity 327 and the second pressure-maintaining cavity 328 still remain in a pressure-relief state. The same water inlet pipe 6 pushes and causes at least part of the structure of the pressure-maintaining sealing gasket 329 to deform, so that water can be provided to the shell seat 326 through the same water inlet pipe 6. The shell seat 32 is connected to the brush ring drain pipe 33, and the water enters the brush ring drain pipe 33.

[0047] When the brush ring function is performed, the water level inside the inner water tank 2 drops. When the brush ring float 35 drops to the first position, the brush ring float 35 pulls the brush ring connecting rod 34 to swing downward, and the middle part of the brush ring connecting rod 34 is rotatably connected to the top shell body 321. The other end of the brush ring connecting rod 34 originally sealed the air outlet 3212. As the other end of the brush ring connecting rod 34 swings upward, the gas inside the expansion cavity 3241 leaks out through the air outlet 3212, the expansion plate 324 returns to its original state, the pressing plate 325 moves upward, and the spring 32102 inside the intermediate shell body 322 pushes the central shaft 3210 to move upward, and the sealing rubber ring 32103 re-seals the top of the first pressure-maintaining cavity 327, that is, the first pressure-maintaining cavity 327 and the second pressure-maintaining cavity 328 are in the pressure-maintaining state again. The pressure-maintaining sealing gasket 329 can close the connecting pipeline between the shell seat 326 and the same water inlet pipe 6. At this point, the function of the brush ring is officially turned off.

[0048] When the toilet device is in a non-flushing state, the strong flush float 45 is in its highest floating position, and the strong flush valve 42 is in a closed state. That is, the same water inlet pipe 6 cannot enter through the strong flush valve 42 and perform the strong flush function. When the water level inside the inner water tank 2 drops, the water level supported by the strong flush float 45 drops to the second position. The strong flush float 45 pulls the strong flush connecting rod 44 to swing downward, and changes the strong flush valve 42 from the closed state to the open state. The same water inlet pipe 6 can enter through the strong flush valve 42, and water is continuously supplied to the strong flush pipeline of the toilet bowl through the top of the strong flush drainage pipe 43, performing the strong flush function on the inner surface of the toilet bowl, so that the toilet device can completely push the user's excrement to the outside, that is, realize the strong drainage function of the toilet device.

[0049] Preferably, in the technical solution of the present invention, when the strong flush float 45 is lowered to the second position, the strong flush valve 42 changes from a closed state to an open state, and when the brush ring float 45 is lowered to the first position, it changes from an open state to a closed state. Therefore, by calibrating the first position and the second position to different positions, the brush ring function and the strong flush function can be coordinated with each other. For example, if the first position is set higher than the second position, the brush ring function stops before the strong flush function starts; if the first position and the second position are set equal, the brush ring function stops at the same time as the strong flush function starts; if the first position is set lower than the second position, the brush ring function stops after the strong flush function starts.

[0050] When the toilet is not flushing, the water replenishment float 55 is at its highest position, and the water replenishment valve 52 is closed. This means that the same water inlet pipe 6 cannot flow in or replenish water through the water replenishment valve 52. When the water level inside the inner water tank 2 drops, the water replenishment float 55 is supported and lowered to the third position. The water replenishment float 55 pulls the water replenishment connecting rod 54 downward, swinging the water replenishment valve 52 from the closed position to the open position. Water can then flow in through the same water inlet pipe 6. Simultaneously, the water replenishment valve 52 is equipped with a water replenishment pipe 56 and a corresponding hose (not shown) connected to the flush tank 4. Water is continuously replenished through the water replenishment pipe 56. If the amount of water entering the flush tank 4 exceeds the amount of water flowing out of the flush tank hole 41 of the flush tank 4, the water level in at least the flush tank 4 will rise. During the strong flushing process, when the strong flushing valve 42 changes from the closed state to the open state, the water level in the strong flushing water tank drops to the second position, and water is injected into the strong flushing water tank through the water supply pipe, and the strong flushing float moves upward to the closed state position, so that the strong flushing valve 42 changes from the open state to the closed state.

[0051] In addition, the water supply drainage pipe connected to the water supply valve 52, when the water supply valve 52 is in the water filling state, part of the water in the water supply valve 52 will also pass through the second pipe 9 and the water inlet 81 on the outer periphery of the venturi tube 8 to replenish water into the outer water tank 1. As the water level at the bottom of the outer water tank 1 moves upward, the water level will enter the water supply tank 5 from the top edge of the inner water tank 2, pushing the water supply float 55 to move upward to the corresponding position of the closed state, thereby turning off the water supply function of the toilet water tank device.

[0052] It should be further explained that the water supply valve 52 of the present invention supplies water to the flush tank 4 via the water supply pipe 56 to control the flush valve 42 to change to the closed state. Furthermore, the bottom of the water supply and drainage pipe 53 connected to the water supply valve 52 supplies water to the external water tank 1 via the second pipe 9 and the venturi tube 8. Furthermore, the top of the water supply and drainage pipe 53 supplies water to the bottom of the toilet bowl via the brush ring pipeline inside the toilet bowl, thus achieving a water-sealed state at the bottom of the toilet bowl.

[0053] Preferably, a first proportional water valve 11 is provided upwardly inside the water supply and drainage pipe 53, wherein the main flow direction of the first proportional water valve 11 is to supply water to the inside of the toilet bowl toward the top of the water supply and drainage pipe 53, and to supply water to the strong flush tank 4 through the water supply pipe 56. In addition, the secondary flow direction of the first proportional water valve 11 is to flow to the second pipe 9 and the Venturi tube 8 to supply water to the inside of the external water tank 1. Preferably, the first proportional water valve 11 is set at a position lower than the position of the water supply valve 52 to ensure the water flow in the above two main flow directions.

[0054] Preferably, the strong flush drain pipe 43 of the technical solution of the present invention is also provided with a second proportional water valve 12 arranged upward, wherein the main flow direction of the second proportional water valve 12 is the strong flush pipeline inside the toilet bowl, and the secondary flow direction of the second proportional water valve 12 is to replenish water inside the external water tank 1. Preferably, the second proportional water valve 12 is set at a position lower than the position of the strong flush water valve 42 to ensure the water flow in the main flow direction.

[0055] Preferably, the brush ring drain pipe 33 of the technical solution of the present invention is provided with a third proportional water valve 13 arranged downward, wherein the main flow direction of the third proportional water valve 13 is the first pipe 7, and the secondary flow direction of the second proportional water valve 12 is to replenish water to the inside of the external water tank 1 through the bypass branch pipe at its upper part. Preferably, the third proportional water valve 13 is set at a position higher than the position of the brush ring water valve 32 to ensure the water flow in the main flow direction.

[0056] More preferably, the first proportional water valve 11, the second proportional water valve 12, and the third proportional water valve 13 include a spherical water supply valve body 14 and a water supply valve plate 15 connected thereto. Therefore, most of the water flowing through the proportional water valve is restricted by the water supply valve body 14 and moves in the main flow direction, while a small part of the water will exert downward pressure on the water supply valve plate 15, causing partial structure deformation of the water supply valve plate 16, and a gap between the water supply valve plate 15 and the lower installation step, and a small part of the water will flow through the gap.

[0057] Preferably, the strong flush tank hole 41 of the present invention is larger than the water supply tank hole 51, so that when the water level of the outer water tank 1 is lower than the bottom surface of the inner water tank 2, the water level of the strong flush tank 4 drops faster than the water level of the water supply tank 5. When the water supply float 55 descends to the third position, and the third position is lower than the second position, the water supply tank 5 will open after the strong flush valve 42 has been open for a certain period of time, or after the strong flush function has been running for a certain period of time, before the water supply valve 52 officially replenishes water to the strong flush tank 4. In other words, the actual operating time of the strong flush function is the sum of the interval T1 from the strong flush float 45 descending to the second position to the water supply float 55 downward to the third position, and the interval T2 from the water supply pipe 56 replenishing water to the strong flush tank 4 to the strong flush float 45 rising to the second position, T1 and T2.

[0058] Preferably, in the technical solution of the present invention, the water inflow of the water supply pipe 56 is greater than the water outflow of the strong flush tank hole 41 at the bottom of the strong flush tank 4. Alternatively, the water inflow flow rate of the water supply pipe 56 is greater than the water outflow flow rate of the strong flush tank hole 41 at the bottom of the strong flush tank 4 and the brush ring tank hole 31 at the bottom of the brush ring tank 3.

[0059] In the technical solution of the present invention, in order to shut off the water replenishment function, the water level in the outer water tank 1 can be continuously moved upward, so that the water level in the outer water tank 1 is higher than the top edge of the replenishment tank 5, and overflows into the replenishment tank 5, thereby raising the water level in the replenishment tank 5 and pushing the replenishment float 55 upward to the highest working position, so that the replenishment valve 52 is closed. Alternatively, the water level in the outer water tank 1 can continue to rise, entering the replenishment tank 5 through the replenishment tank hole 51, thereby raising the position of the replenishment float 55.

[0060] In other embodiments of the present invention, the height of the four edge partitions of the strong flush water tank 4 is higher than the top edges of the brush ring water tank 3 and the water replenishment tank 5. That is, the water height that the strong flush water tank 4 can accommodate is higher than the brush ring water tank 3 or the water replenishment tank 5. In addition, the partition between the strong flush water tank 4 and the brush ring water tank 3 is sealed, that is, the water inside the strong flush water tank 4 cannot flow into the brush ring water tank 3. In addition, an overflow hole is provided on the partition between the strong flush water tank 4 and the water replenishment tank 5, and the center of the overflow hole is located at the fourth position of the inner water tank 2. When water is replenished to the strong flush water tank 4 through the water replenishment pipe 56, the water level inside the strong flush water tank 4 continues to rise, and the strong flush buoy 45 can be raised to the highest position, thereby turning off the strong flush function. However, since the strong flush water tank 4 can accommodate a water body height higher than the water replenishment tank 5, when the water level of the strong flush water tank 4 is higher than the fourth position, the water inside the strong flush water tank 4 flows to the water replenishment tank 5 through the overflow hole, thereby causing the water inside the water replenishment tank 5 to rise, and finally pushing the water replenishment buoy 55 to the highest position to close the water replenishment valve 52, that is, the water replenishment function is turned off.

[0061] The working principle of the segmented automatic flushing water-saving toilet tank device of the technical solution of the present invention is as follows:

[0062] See Figure 1-7 After the user finishes using the toilet, the user presses the air pump provided on the top cover surface of the toilet tank device, wherein the air pump is an air pump or other air pumping mechanism with a one-way air pumping function. The air pump injects gas into the expansion cavity 3241 on the top of the brush ring water valve 32 through the connected air inlet pipe. The expansion plate 324 pushes the pressing plate 325 to move downward, so as to relieve the pressure of the first pressure-maintaining cavity 327 and the second pressure-maintaining cavity 328 at the same time, and open the water inlet of the brush ring water valve 32. The same water inlet pipe 6 allows water to flow into the brush ring water valve 32. After the water passes through the brush ring water valve 32, it flows in the direction of the first water pipe 7, the venturi tube 8, and the second water pipe 9, and finally passes through the top of the water supply and drainage pipe 53 to transport the water to the brush ring water channel inside the toilet bowl. The brush ring water flushes the inner surface of the toilet bowl, thereby collecting and concentrating the excrement on the inner surface of the toilet bowl inside the groove at the bottom of the toilet bowl.

[0063] Since the surface of the venturi tube 8 is provided with a water inlet 81, when the water flows rapidly from the first water pipe 7, the venturi tube 8, and the second water pipe 9 toward the water supply and drainage pipe 53, the water originally in the outer water tank 1 is attracted by the negative pressure of the fast-flowing water in the venturi tube 8, and a large amount of water enters the venturi tube 8 and flows toward the second water pipe 9 through the water inlet 81.

[0064] When the water level inside the outer water tank 1 gradually drops to a certain position, or the water inside the brush ring water tank 3 has dropped to the first position, the brush ring float 35 drops downward and pulls the brush ring connecting rod 34 to release the gas inside the expansion cavity 3241 inside the brush ring water valve 32 outward through the air outlet 3212, so that the pressing plate 325 is reset by the spring 32102, the first pressure maintaining cavity 327 and the second pressure maintaining cavity 328 return to the pressure maintaining state, and the water inlet of the brush ring water valve 32 is closed again, and the brush ring function is stopped at this time.

[0065] As the water level in the outer water tank 1 drops below the bottom surface of the inner water tank 2, the water originally contained in the flush tank 4 and the make-up water tank 5 gradually flows downward through their bottom holes. Since the inner diameter of the flush tank hole 41 of the flush tank 4 is larger than the inner diameter of the make-up water tank 5, the water level in the flush tank 4 drops faster than that in the make-up water tank 5. When the water level in the flush tank 4 drops to the second position, the flush buoy 45 pulls the flush connecting rod 44 downward, thereby opening the flush valve 42. This allows the same water inlet pipe 6 to enter the flush valve 42. Most of the water passing through the flush valve 42 flows toward the top drain port of the flush drain pipe 43 due to the second proportional valve 12, passes through the flushing pipe inside the toilet bowl, and vigorously flushes the excrement inside the toilet bowl, so that the excrement is discharged outward through the corresponding sewage pipe. In addition, a small portion of water passes through the strong flush valve 42 and the gap at the bottom of the second proportional water valve 12 to be injected into the bottom of the outer water tank 1 to achieve water replenishment at the bottom of the outer water tank 1 .

[0066] During the process of the strong flushing valve 42 performing the corresponding strong flushing function, after the water level of the water supply tank 5 gradually drops to the third position, the water supply valve 52 is opened, and the same water inlet pipe 6 flows into the water supply valve 52. The water passing through the water supply valve 52 can be divided into three streams of water. The first stream of water passes through the top opening of the water supply drainage pipe 53 and the toilet bowl brushing water channel to re-brush the toilet bowl and re-seal the bottom of the toilet bowl. The second stream of water flows downward through the bottom gap of the first proportional water valve 11, and flows into the interior of the outer water tank 1 through the second water pipe 9 and the surface water inlet 81 of the venturi tube 8, also replenishing water inside the outer water tank 1. In addition, the most important third stream of water is used to replenish water to the strong flushing tank 4 through the water supply pipe 56 to increase the vertical movement position of the strong flushing float 45.

[0067] When water is replenished to a certain position in the strong flush water tank 4 through the water replenishment pipe 56, the strong flush float 45 will rise to the second position. At this time, the strong flush float 45 pushes the strong flush connecting rod 44 to flip upward to close the strong flush water valve 42 again, that is, the strong flush function is turned off.

[0068] In the technical solution of the present invention, even after the strong flush valve 42 is closed, the water supply pipe 56 still supplies water to the strong flush tank 4, and part of the water in the water supply valve 52 will continue to supply water to the strong flush tank 4, thereby causing the water level inside the strong flush tank 4 to rise. If the water level in the strong flush tank 4 exceeds the overflow hole, part of the water will pass through the overflow hole to supply water to the inside of the water supply tank 5, thereby pushing the water supply float 55 to rise. If the water level in the water supply tank 5 rises to the third position, the water supply float 55 pushes the water supply connecting rod 54 and closes the water supply valve 52, thereby turning off the water supply function.

[0069] In the technical solution of the present invention, during the strong flushing function, the water inside the outer water tank 1 is replenished with part of the water through the bottom port of the strong flushing drainage pipe 43, and the other part of the water is replenished through the bottom port of the water replenishment drainage pipe 53 through the second water pipe 9 and the water inlet 81 of the venturi tube 8. When the water inside the outer water tank 1 flows into the water replenishment tank 5 through the top edge of the water replenishment tank, it can also push the water replenishment float 55 to rise, thereby closing the water replenishment valve 52 and turning off the water replenishment function.

[0070] While the water is being introduced through the water supply valve 52 , part of the water also flows through the water supply drain pipe 53 to the brush ring pipeline of the toilet bowl, thereby re-injecting water into the sewage outlet at the bottom of the toilet bowl to achieve a water seal.

[0071] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention description and drawings under the concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A segmented automatic flushing water-saving toilet tank device, characterized in that: It includes an outer water tank and a built-in inner water tank. The inner water tank is divided into a brush ring water tank, a strong flush water tank and a water replenishment tank by a partition. The brush ring water valve inside the external water tank controls the water circuit to start according to the change of air pressure, and uses negative pressure to extract the water inside the external water tank to incrementally brush the toilet ring; the brush ring function triggers the air pressure of the brush ring water valve to change again according to the change of water level in the brush ring water tank, so as to turn off the brush ring function; The strong flush valve inside the external water tank starts the strong flush function of the toilet bowl according to the water level change of the strong flush tank, and replenishes water to the external water tank according to the proportional value; The water replenishment valve inside the external water tank changes with the water level in the replenishment tank, and there is a delay in starting the strong flush function of the strong flush valve. The water replenishment valve synchronously replenishes water to the strong flush tank and controls the closing of the strong flush valve, replenishes water to the external water tank, and performs a second brushing and water seal on the inner surface of the toilet bowl.

2. The segmented automatic flushing water-saving toilet tank device according to claim 1, characterized in that: The user inputs gas into the brush ring water valve by pumping air, causing the internal structure of the brush ring water valve to undergo elastic expansion and axial actuation, thereby changing the pressure state of the pressure holding chamber. The water inlet pipe passes through the brush ring water valve and is input into the toilet brush ring pipeline for brushing.

3. The segmented automatic flushing water-saving toilet tank device according to claim 2, characterized in that: The brush ring water valve includes a top shell, an intermediate shell, a bottom shell and a shell seat which are axially arranged in sequence. An expansion plate is provided in the top shell to form an expansion cavity. A pressing plate is provided inside the intermediate shell, and the pressing plate is connected to the central axis which passes through the intermediate shell. A first pressure-maintaining cavity is formed between the bottom shell and the intermediate shell. A sealing rubber ring is provided at the bottom of the central axis to change the pressure-maintaining state of the first pressure-maintaining cavity. A pressure-maintaining sealing gasket is provided at the bottom of the bottom shell to form a second pressure-maintaining cavity. A vent is provided in the bottom shell to connect the first pressure-maintaining cavity and the second pressure-maintaining cavity.

4. The segmented automatic flushing water-saving toilet tank device according to claim 1, characterized in that: The top of the strong flush water valve is swingably connected to the strong flush buoy through a strong flush connecting rod, the strong flush buoy extends into the interior of the strong flush water tank, and a strong flush water tank hole is provided at the bottom of the strong flush water tank; the top of the water replenishment valve is swingably connected to the water replenishment buoy through a water replenishment connecting rod, the water replenishment buoy extends into the interior of the water replenishment tank, and a water replenishment tank hole is provided at the bottom of the water replenishment tank. The inner diameter of the water replenishment tank hole is smaller than the inner diameter of the strong flush water tank hole, and the water replenishment valve is connected to the strong flush water tank through a water replenishment pipe.

5. The segmented automatic flushing water-saving toilet tank device according to claim 4, characterized in that: The brush ring water valve is connected to the water supply and drainage pipe of the water supply valve through a first water pipe, a Venturi tube, and a second water pipe, and at least the Venturi tube extends into the interior of the outer water tank; the water supply valve supplies water to the outer water tank through the second water pipe and the Venturi tube, and the water supply and drainage pipe is connected to the brush ring pipeline inside the toilet bowl.

6. The segmented automatic flushing water-saving toilet tank device according to claim 5, characterized in that: The maximum water level of the strong flushing water tank is higher than the maximum water level of the water replenishment tank.

7. The segmented automatic flushing water-saving toilet tank device according to claim 1, characterized in that: The water supply drain pipe connected to the water supply valve is equipped with a first proportional water valve set upward, the strong flushing drain pipe connected to the strong flushing valve is equipped with a second proportional water valve set upward, and the brush ring drain pipe connected to the brush ring water valve is equipped with a third proportional water valve set downward. The water flow direction and flow rate are controlled by the proportional water valves.

8. The segmented automatic flushing water-saving toilet tank device according to claim 7, characterized in that: The first proportional water valve, the second proportional water valve and the third proportional water valve include an inlet valve body for limiting the direction of water flow. The inlet valve body is also connected to a outlet valve plate. There is a gap between the outlet valve plate and the pipeline, and a small amount of water flows through the gap.

9. The segmented automatic flushing water-saving toilet tank device according to claim 1, characterized in that: The inner water tank is built in the outer water tank, the inner water tank is connected to the inner middle part of the outer water tank, and there is a water accommodating space between the bottom of the inner water tank and the bottom of the outer water tank.

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