A toilet flushing method, device and toilet

Abstract

The present invention discloses a toilet flushing method, a device and a toilet. The toilet flushing method is as follows: a small water tank is arranged in the toilet water tank. When performing a large-capacity flushing, both the small water tank and the toilet water tank drain water, and the water in the small water tank is discharged into the toilet water tank; when performing a small-capacity flushing, the small water tank does not drain water, and the toilet water tank drains water; during the water inlet stage of the toilet water tank, the drained small water tank is replenished with water. The present invention can not only be used to convert a single-row toilet flushing device into a double-row one, but also be used to reduce the drainage volume of the small-capacity flushing of a double-row toilet flushing device, thereby solving the problem of water resource waste existing in the flushing device of the existing toilet.

Description

Technical Field

[0001] The present invention relates to the field of sanitary wares, and particularly to a toilet flushing method, a device and a toilet. Background Art

[0002] Generally, the flushing device of a toilet includes a toilet water tank, a water inlet valve and a drain valve. The water inlet valve and the drain valve are arranged in the toilet water tank. The drain valve can be a flap drain valve or a barrel drain valve, etc. At present, most of the drain valves of toilets have a dual-drainage function, which can achieve large-capacity drainage and small-capacity drainage. However, there are also some drain valves of toilets that only have a single-drainage function. For such drain valves with a single-drainage function, the same drainage level is used for both large and small excretions, resulting in waste of water resources. If such a single-drainage function drain valve is changed to a dual-drainage function, based on the existing technology, only the entire drain valve can be replaced, resulting in higher costs and unnecessary waste of materials. Although most of the drain valves of toilets have a dual-drainage function, the difference between the large-capacity and small-capacity of some drain valves is not significant, and it is not convenient to change the drainage volume of the small-capacity flushing, resulting in more water consumption in the small-drain state, which is not conducive to water conservation. Therefore, most of the existing toilet flushing devices have problems of water resource waste. Summary of the Invention

[0003] In view of the technical problems existing in the prior art, the present invention provides a toilet flushing method, a device and a toilet, which can not only be used to change a single-drain toilet flushing device into a dual-drain one, but also be used to reduce the drainage volume of the small-capacity drainage of a dual-drain toilet flushing device, thereby solving the problem of water resource waste existing in the existing toilet flushing devices.

[0004] The technical solution adopted by the present invention to solve its technical problems is: A toilet flushing method, in which a small water tank is arranged in the toilet water tank. When performing large-capacity flushing, both the small water tank and the toilet water tank drain water, and the water in the small water tank drains into the toilet water tank; when performing small-capacity flushing, the small water tank does not drain water, and the toilet water tank drains water; during the water inlet stage of the toilet water tank, the drained small water tank is replenished with water.

[0005] Further, at least part of the small water tank is located below the working water level of the toilet water tank, and the working water level of the small water tank is higher than the post-drain water level of the toilet water tank; the small water tank is provided with a control mechanism that can at least control whether it drains water or not.

[0006] Further, the water inlet part of the small water tank is lower than the working water level of the toilet water tank. When replenishing water, the water in the small water tank comes from the toilet water tank.

[0007] Further, the water inlet part of the small water tank is located at the bottom of the small water tank, and a water passing port is provided. A buoyancy mechanism is arranged at the water passing port. When replenishing water, the buoyancy mechanism is actuated by buoyancy to open the water passing port, so that the water in the toilet water tank enters the small water tank through the water passing port. When the small water tank is filled with water to the set water level, the buoyancy mechanism closes the water passing port under the action of its gravity and / or water pressure; or, the water inlet part of the small water tank is located at the top of the small water tank, and a water inlet is provided. When replenishing water, the water in the toilet water tank enters the small water tank through the water inlet.

[0008] Further, the control mechanism and the buoyancy mechanism are the same one.

[0009] Further, the control mechanism includes a flap structure which is rotatably connected to the bottom of the small water tank and controls the opening and closing of the water passing port provided at the bottom of the small water tank.

[0010] Further, the control mechanism further includes an adjusting rod which is arranged on the flap structure, and a counterweight block is connected to the adjusting rod and can be adjusted axially along the adjusting rod to change the center of gravity position of the flap structure in the open state.

[0011] Further, the control mechanism is linked with the large-displacement starting mechanism of the toilet flushing device, so that when the large-displacement starting mechanism of the toilet flushing device is started, the control mechanism is started accordingly to drain the small water tank.

[0012] The present invention further provides a toilet flushing device, which includes a toilet water tank with a drain valve arranged therein; and further includes a small water tank which is arranged in the toilet water tank. When performing large-displacement flushing, both the small water tank and the toilet water tank drain water, and the water in the small water tank drains into the toilet water tank; when performing small-displacement flushing, the small water tank does not drain water and the toilet water tank drains water; during the water inlet stage of the toilet water tank, the drained small water tank is replenished with water; the small water tank is provided with a control mechanism that can at least control its drainage.

[0013] Further, at least part of the small water tank is located below the working water level of the toilet water tank, and the working water level of the small water tank is higher than the post-drain water level of the toilet water tank.

[0014] Further, the water inlet part of the small water tank is lower than the working water level of the toilet water tank, and when replenishing water, the water in the small water tank comes from the toilet water tank.

[0015] Further, the water inlet part of the small water tank is located at the bottom of the small water tank, and a water passing port is provided. A buoyancy mechanism is arranged at the water passing port. When replenishing water, the buoyancy mechanism is opened by the buoyancy force to enable the water in the toilet tank to enter the small water tank through the water passing port. When the small water tank is filled with water to the set water level, the buoyancy mechanism is closed by its gravity and / or water pressure; alternatively, the water inlet part of the small water tank is located at the top of the small water tank, and a water inlet is provided. When replenishing water, the water in the toilet tank enters the small water tank through the water inlet.

[0016] Further, the control mechanism and the buoyancy mechanism are the same one.

[0017] Further, the drain valve is provided with a drain starting mechanism, which includes a large-displacement starting mechanism and a small-displacement starting mechanism. The control mechanism is linked with the large-displacement starting mechanism. When the large-displacement starting mechanism is started, the control mechanism is started accordingly to enable the small water tank to drain water.

[0018] Further, the control mechanism includes a flap structure, which is rotatably connected to the bottom of the small water tank to control the opening and closing of the water passing port provided at the bottom of the small water tank; the flap structure is linked with the large-displacement starting mechanism.

[0019] Further, the control mechanism further includes an adjusting rod, which is arranged on the flap structure, and a counterweight block is connected to the adjusting rod and can be adjusted along the axial direction of the adjusting rod to change the center-of-gravity position of the flap structure in the open state.

[0020] Further, the large-displacement starting mechanism is a pressing type, and it is connected with a pressing rod. The bottom of the pressing rod extends into the small water tank. When the large-displacement starting mechanism is pressed, the pressing rod pushes the force-receiving part provided on the flap structure to prompt the flap structure to open the water passing port; alternatively, the large-displacement starting mechanism controls the flap structure to open the water passing port through a lifting rod cooperating with a chain or a pull rope.

[0021] Further, the small water tank is installed on the overflow pipe of the drain valve; the drain valve is a single-stage flap type drain valve, or the drain valve is a two-stage bucket type drain valve.

[0022] The present invention further provides a toilet, which includes a toilet body and a flushing device, and the flushing device adopts the toilet flushing device as described in the above-mentioned present invention.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. In the present invention, a small water tank is provided in the toilet cistern. When flushing with a large discharge volume, both the small water tank and the toilet cistern drain water, and the water in the small water tank drains into the toilet cistern. When flushing with a small discharge volume, the small water tank does not drain water, and only the toilet cistern drains water. Therefore, the present invention can not only convert the toilet flushing device equipped with a single - row drainage valve into a double - row one without removing the original single - row drainage valve, thereby reducing costs and achieving the purpose of water conservation; but also reduce the drainage volume of the small - discharge flushing of the toilet flushing device with double - row function, thus achieving the purpose of water conservation.

[0025] 2. At least a part of the small water tank is located below the working water level of the toilet cistern, and the working water level of the small water tank is higher than the post - drainage water level of the toilet cistern, so that the small water tank can occupy a part of the water storage space above the post - drainage water level of the toilet cistern. That is, the small water tank can partition a part of the water in the toilet cistern, which is equivalent to transferring a part of the water above the post - drainage water level of the toilet cistern to the small water tank. Therefore, the toilet cistern adopts the general toilet cistern of the existing technology, and without adjusting the working water level of the toilet cistern, it can ensure that the total water storage capacity can meet the water volume requirement for large - discharge flushing.

[0026] 3. The water inlet part of the small water tank is lower than the working water level of the toilet cistern. When replenishing water, the water in the small water tank comes from the toilet cistern, making the water replenishing time of the small water tank roughly synchronous with that of the toilet cistern and ensuring that the small water tank can be replenished with water in time.

[0027] 4. A water passing port is arranged at the bottom of the small water tank, and in cooperation with a buoyancy mechanism to control the opening and closing of the water passing port, so that the small water tank can automatically replenish water after draining, and the buoyancy mechanism is used to make the water inflow of the small water tank controllable. The control mechanism and the buoyancy mechanism are the same one, so that the present invention can control the water inlet and outlet of the small water tank with one component, thereby reducing the material cost and simplifying the installation steps.

[0028] 5. The control mechanism includes a flap structure, which is rotatably connected in the small water tank, making the start control of the control mechanism more convenient.

[0029] 6. The control mechanism further includes an adjusting rod, which is arranged on the flap structure, and a counterweight block that can move axially along the adjusting rod to change its position is connected to the adjusting rod. So that the present invention can change the center - of - gravity position of the flap structure after it is opened by adjusting the position of the counterweight block on the adjusting rod, thereby adjusting the falling time of the flap structure and achieving the purpose of adjusting the drainage volume of the small water tank.

[0030] 7. The control mechanism is linked with the large - discharge starting mechanism of the toilet flushing device, so that the control mechanism is exempt from separate control, making it more convenient for users to use.

[0031] 8. The large-displacement starting mechanism uses a pressure rod or a lifting rod in cooperation with a chain or a pull rope to prompt the flap structure to open the water passing port, making the linkage structure between the large-displacement starting mechanism and the flap structure relatively simple and not affecting the drainage action of the original drain valve.

[0032] The following further elaborates on the present invention with reference to the accompanying drawings and embodiments; however, a toilet flushing method and device and a toilet of the present invention are not limited to the embodiments. Description of the Drawings

[0033] Figure 1 is a cross-sectional view of the small water tank of the present invention in the closed state of the control mechanism in Embodiment 1;

[0034] Figure 2 is a cross-sectional view of the small water tank of the present invention in the open state of the control mechanism in Embodiment 1;

[0035] Figure 3 is a cross-sectional view of the toilet flushing device of the present invention in the small-displacement flushing state in Embodiment 2;

[0036] Figure 4 is a partial enlarged schematic view (cross-section) of the toilet flushing device of the present invention in the small-displacement flushing state in Embodiment 2;

[0037] Figure 5 is a top view of the toilet of the present invention in Embodiment 2;

[0038] Figure 6 is a schematic structural view of the drainage starting mechanism of the present invention in Embodiment 2;

[0039] Figure 7 is a state schematic view of the drainage starting mechanism of the present invention when the small-displacement starting mechanism is pressed in Embodiment 2;

[0040] Figure 8 is a state schematic view of the drainage starting mechanism of the present invention when the large-displacement starting mechanism is pressed in Embodiment 2.

[0041] Figure 9 is a cross-sectional view of the toilet flushing device of the present invention in the large-displacement flushing state in Embodiment 2;

[0042] Figure 10 is a partial enlarged schematic view (cross-section) of the toilet flushing device of the present invention in the large-displacement flushing state in Embodiment 2;

[0043] Figure 11 is a cross-sectional view of the small water tank of the present invention in the water replenishing state in Embodiment 2;

[0044] Figure 12 is a cross-sectional view of the toilet flushing device of the present invention in Embodiment 3;

[0045] Figure 13 is a cross-sectional view of the toilet flushing device according to the fourth embodiment of the present invention;

[0046] Figure 14 is a cross-sectional view of the toilet flushing device according to the fifth embodiment of the present invention. Detailed implementation manners

[0047] Embodiment 1

[0048] Please refer to Figure 1 and Figure 2 As shown, a toilet flushing method of the present invention includes providing a small water tank 1 in the toilet water tank. When performing a large-capacity flush, both the small water tank 1 and the toilet water tank drain water, and the water in the small water tank 1 drains into the toilet water tank; when performing a small-capacity flush, the small water tank 1 does not drain water, and the toilet water tank drains water. During the water inlet stage of the toilet water tank, the drained small water tank 1 is replenished with water. When only the toilet water tank drains water, the toilet water tank can drain all the water or partially drain the water. The sum of the water storage capacity of the toilet water tank and the water storage capacity of the small water tank meets the water flush volume requirement specified for a large-capacity flush.

[0049] In this embodiment, at least a part of the small water tank 1 is located below the working water level of the toilet water tank, and the working water level of the small water tank is higher than the water level after drainage of the toilet water tank, so that the small water tank can occupy a part of the water storage space above the water level after drainage of the toilet water tank, that is, the small water tank can partition a part of the water in the toilet water tank, which is equivalent to transferring a part of the water above the water level after drainage of the toilet water tank to the small water tank. Therefore, the toilet water tank adopts a common toilet water tank in the prior art, and without adjusting the working water level of the toilet water tank, it can ensure that the total water storage capacity (that is, the sum of the water storage capacity of the toilet water tank and the water storage capacity of the small water tank) can meet the water flush volume requirement specified for a large-capacity flush, without the need to additionally design other-sized toilet water tanks and / or adjust the working water level of the toilet water tank. In other embodiments, the small water tank is located above the working water level of the toilet water tank. At this time, the size of the toilet water tank needs to be made smaller than that of a common toilet water tank in the prior art, and / or the original working water level of the toilet water tank needs to be lowered to ensure that the total water storage capacity can meet the water flush volume requirement specified for a large-capacity flush and avoid excessive water flush volume during a large-capacity flush. The working water level of the toilet water tank refers to the water level line corresponding to the water surface after the toilet water tank is filled with water (before drainage), the working water level of the small water tank refers to the water level line corresponding to the water surface after the small water tank is filled with water (before drainage), and the water level after drainage of the toilet water tank refers to the water level line corresponding to the water surface after the toilet water tank drains water.

[0050] In this embodiment, the water inlet part of the small water tank 1 is lower than the working water level of the toilet tank. When replenishing water, the water in the small water tank 1 comes from the toilet tank; the small water tank 1 is provided with a control mechanism 2 that can at least control whether it drains water or not. In other embodiments, when replenishing water, the water in the small water tank comes from the water inlet valve in the toilet tank. Specifically, the water inlet valve can be provided with a water replenishing pipe, and the small water tank is replenished with water by using this water replenishing pipe.

[0051] In this embodiment, the water inlet part of the small water tank 1 is located at the bottom of the small water tank 1, and a water passing port 11 is provided. A buoyancy mechanism is provided at the water passing port 11. When replenishing water, the buoyancy mechanism is opened by the buoyancy force to enable the water in the toilet tank to enter the small water tank 1 through the water passing port 11. When the water in the small water tank 1 reaches the set water level, the buoyancy mechanism is closed by the water pressure and gravity to close the water passing port 11. In other embodiments, the water inlet part of the small water tank is located at the top of the small water tank, and a water inlet is provided; when replenishing water, the water in the toilet tank enters the small water tank through this water inlet; the water inlet can be located on the top surface of the small water tank or at the top of the side wall of the small water tank.

[0052] In this embodiment, the control mechanism 2 and the buoyancy mechanism are the same one, but not limited to this. In other embodiments, the control mechanism and the buoyancy mechanism are two separate mechanisms.

[0053] In this embodiment, the control mechanism 2 includes a flap structure 21, which is rotatably connected to the bottom of the small water tank 1 and controls the opening and closing of the water passing port 11 provided at the bottom of the small water tank 1. The control mechanism 2 further includes an adjusting rod 22, which is provided on the flap structure 21, and a counterweight block is connected to the adjusting rod 22 and can be adjusted along the axial direction of the adjusting rod 22 to change the center of gravity position of the flap structure 21 in the open state. Specifically, the adjusting rod 22 is in a vertical state before the flap structure 21 is opened, and its bottom is threadedly connected to a position approximately in the middle of the flap structure 21. The counterweight block is specifically a counterweight nut 23, which is threadedly connected to the adjusting rod 22. By adjusting the position of the counterweight nut on the adjusting rod 22, the center of gravity position of the flap structure 21 in the open state can be changed. In Figure 2 the view, if the center of gravity position of the flap structure 21 shifts to the left, the falling and closing time of the flap structure 21 is shortened; if the center of gravity position of the flap structure 21 shifts to the right, the falling and closing time of the flap structure 21 is prolonged, so as to achieve the purpose of adjusting the drainage volume of the small water tank 1. In order to increase the buoyancy, the flap structure 21 is provided with an air chamber 24.

[0054] In this embodiment, the control mechanism 2 is linked with the large-displacement starting mechanism of the toilet flushing device. When the large-displacement starting mechanism of the toilet flushing device is activated, the control mechanism 2 is activated accordingly to cause the small water tank 1 to drain water. In other embodiments, the control mechanism 2 is controlled independently and is not linked with the starting mechanism of the toilet flushing device.

[0055] A toilet flushing method of the present invention can be applied to a single-row toilet flushing device or a double-row toilet flushing device.

[0056] When the present invention is applied to a single-row toilet flushing device, the single-row toilet flushing device can be converted into a double-row one: when the small water tank 1 does not drain water and the toilet tank 3 drains water, the toilet performs a small-displacement flushing, as shown in Figure 3 、 Figure 4 ; when the toilet tank 3 starts to drain water and the small water tank 1 also starts to drain water, the water in the small water tank 1 drains into the toilet tank 3 and is discharged together with the water in the toilet tank 3 and the small water tank 1, and the toilet performs a large-displacement flushing, as shown in Figure 9 、 Figure 10 ; Therefore, when the present invention is applied to a single-row toilet flushing device, there is no need to remove the original single-row drain valve, and the double-row function can be achieved, thereby reducing costs and achieving the purpose of water conservation.

[0057] When the present invention is applied to a double-row toilet flushing device, as shown in Figure 13 , the drainage volume of the small-displacement flushing of the toilet flushing device can be reduced, thereby achieving the purpose of water conservation. This is because when the small-displacement flushing is activated, only the toilet tank 3 drains water, and the water storage capacity of the toilet tank 3 is less than the total water storage capacity. Therefore, when the small-displacement flushing is performed, the drainage volume (or flushing volume) of the small-displacement flushing is also correspondingly reduced. When the double-row toilet flushing device starts the large-displacement flushing, the water in the small water tank 1 drains into the toilet tank 3 and is discharged together with the water in the toilet tank 3.

[0058] Embodiment 2

[0059] Please refer to Figures 1 - 11As shown in the figure, a toilet flushing device of the present invention includes a toilet water tank 3, in which a water inlet valve 5 and a drain valve are provided; a small water tank 1 is also provided in the toilet water tank 3. When flushing with a large discharge volume, both the small water tank 1 and the toilet water tank 3 drain water, and the water in the small water tank 1 drains into the toilet water tank 3; when flushing with a small discharge volume, the small water tank 1 does not drain water, and the toilet water tank 3 drains water. When only the toilet water tank 3 drains water, the toilet water tank 3 can drain all the water or only part of the water. During the water inlet stage of the toilet water tank 3, the small water tank 1 after draining water is replenished with water. The small water tank 1 is provided with a control mechanism 2 that can at least control whether it drains water or not. Specifically, the small water tank 1 is disposed on the overflow pipe 41 of the drain valve, but is not limited thereto. Specifically, the small water tank 1 is provided with an installation through hole that penetrates up and down, which is sleeved on the overflow pipe 41, and the two are in interference fit, but the fixing method of the small water tank 1 and the overflow pipe 41 is not limited thereto. The sum of the water storage capacity of the toilet water tank 3 and the water storage capacity of the small water tank 1 meets the water volume requirement for flushing with a large discharge volume.

[0060] In this embodiment, at least part of the small water tank 1 is located below the working water level of the toilet water tank 3, and the working water level of the small water tank 1 is higher than the water level after drainage of the toilet water tank 3, so that the small water tank 1 can occupy a part of the water storage space above the water level after drainage of the toilet water tank 3, that is, the small water tank 1 can partition part of the water in the toilet water tank 3, which is equivalent to transferring part of the water above the water level after drainage of the toilet water tank 3 to the small water tank 1. Therefore, the toilet water tank 3 adopts a toilet water tank commonly used in the prior art, and without adjusting the working water level of the toilet water tank, it can ensure that the total water storage capacity (that is, the sum of the water storage capacity of the toilet water tank and the water storage capacity of the small water tank) basically meets the water volume requirement for flushing with a large discharge volume, without the need to additionally design toilet water tanks of other sizes and / or adjust the working water level of the toilet water tank. In other embodiments, the small water tank is located above the working water level of the toilet water tank. At this time, the size of the toilet water tank needs to be made smaller than that of the toilet water tank commonly used in the prior art, and / or the original working water level of the toilet water tank needs to be lowered to ensure that the total water storage capacity can meet the water volume requirement for flushing with a large discharge volume and avoid excessive water volume for flushing with a large discharge volume. The working water level of the toilet water tank refers to the water level line corresponding to the water surface after the toilet water tank is filled with water (before drainage), the working water level of the small water tank refers to the water level line corresponding to the water surface after the small water tank is filled with water (before drainage), and the water level after drainage of the toilet water tank refers to the water level line corresponding to the water surface after the toilet water tank drains water.

[0061] In this embodiment, the water inlet part of the small water tank 1 is lower than the working water level of the toilet water tank. When replenishing water, the water in the small water tank 1 comes from the toilet water tank; the small water tank 1 is provided with a control mechanism that can control whether it drains water or not. In other embodiments, when replenishing water, the water in the small water tank comes from the water inlet valve in the toilet water tank. Specifically, the water inlet valve can be provided with a water replenishing pipe to replenish water to the small water tank by using the water replenishing pipe.

[0062] In this embodiment, the water inlet part of the small water tank 1 is located at the bottom of the small water tank 1, and a water passing port 11 is provided. A buoyancy mechanism is arranged at the water passing port 11. When replenishing water, the buoyancy mechanism is actuated by buoyancy to open the water passing port 11, so that the water in the toilet tank enters the small water tank 1 through the water passing port 11. When the small water tank 1 is filled with water to the set water level, the buoyancy mechanism is actuated by water pressure and gravity to close the water passing port 11.

[0063] In this embodiment, the control mechanism 2 and the buoyancy mechanism are the same one, but it is not limited thereto. In other embodiments, the control mechanism and the buoyancy mechanism are two separate mechanisms.

[0064] In this embodiment, the control mechanism 2 includes a flap structure 21 which is rotatably connected to the bottom of the small water tank 1 and controls the opening and closing of the water passing port 11 provided at the bottom of the small water tank 1. The control mechanism 2 further includes an adjusting rod 22 which is arranged on the flap structure 21, and a counterweight block which is connected to the adjusting rod 22 and can be adjusted axially along the adjusting rod 22 to change the center of gravity position of the flap structure 21 in the open state. Specifically, the adjusting rod 22 is vertical before the flap structure 21 is opened, and its bottom is threadedly connected to a position approximately in the middle of the flap structure 21. The counterweight block is specifically a counterweight nut 23 which is threadedly connected to the adjusting rod 22. By adjusting the position of the counterweight nut on the adjusting rod 22, the center of gravity position of the flap structure 21 in the open state can be changed. In Figure 2 the view, if the center of gravity position of the flap structure 21 shifts to the left, the falling and closing time of the flap structure 21 is shortened; if the center of gravity position of the flap structure 21 shifts to the right, the falling and closing time of the flap structure 21 is prolonged, so as to achieve the purpose of adjusting the drainage volume of the small water tank 1. In order to increase the buoyancy, the flap structure 21 is provided with an air chamber 24.

[0065] In this embodiment, the drain valve is a single-stage flap type drain valve 4, that is, the flap type drain valve 4 only has a single drainage function. The flap type drain valve 4 is provided with a drainage starting mechanism 8 which includes a fixed seat 86 and a large drainage volume starting mechanism 84 and a small drainage volume starting mechanism 85 arranged on the fixed seat 86. The fixed seat 86 is arranged on the lid of the toilet tank 3. The control mechanism 2 (i.e., the flap structure 21) is linked with the large drainage volume starting mechanism 84. When the large drainage volume starting mechanism 84 is started, the control mechanism 2 (i.e., the flap structure 21) is started accordingly, so that the small water tank 1 drains water.

[0066] In this embodiment, both the large-displacement starting mechanism 84 and the small-displacement starting mechanism 85 are of the button-pressing type. The two are connected to the flap-type drain valve 4 through a lifting rod 81 (the lifting rod 81 is installed on the fixed seat 86 in the form of a seesaw) and a chain 82 (or a pull rope). The large-displacement starting mechanism 84 is connected to a pressure rod 83, and the bottom of the pressure rod 83 extends into the small water tank 1. When the large-displacement starting mechanism 84 is pressed, the pressure rod 83 pushes the force-receiving portion 25 provided on the flap structure 21, causing the flap structure 21 to open upward. The force-receiving portion 25 and the flap structure 21 are located on opposite sides of its rotation axis.

[0067] A toilet flushing device of the present invention originally can only achieve a single drainage function, and can achieve a dual drainage function by adopting the small water tank 1. Specifically, when the small-displacement starting mechanism 85 is pressed, one end of the lifting rod 81 connected to the chain 82 is lifted, and the flap-type drain valve 4 is opened through the chain 82, as Figure 3 , so that the toilet water tank 3 drains water, thereby realizing small-displacement flushing. During this process, the pressure rod 83 has no action, and the flap structure 21 on the small water tank 1 cannot be opened, as Figure 3 、 Figure 4 、 Figure 7 shown. When the large-displacement starting mechanism 84 is pressed, one end of the lifting rod 81 connected to the chain 82 is lifted, and the flap-type drain valve 4 is opened through the chain 82. At the same time, the pressure rod 83 moves downward, pushing the force-receiving portion 25 on the flap structure 21, causing the flap structure 21 to open the water passing port 11 of the small water tank 1, as Figure 8 、 Figure 9 、 Figure 10 shown, so that the water in the small water tank 1 is discharged into the toilet water tank 3 through the water passing port 11 and converges with the water in the toilet water tank 3 and is discharged, thereby realizing large-displacement flushing. During the drainage process of the small water tank 1, the buoyancy force received by the flap structure 21 gradually decreases. After the water is drained, the flap structure 21 is turned downward and reset under the action of gravity, thereby closing the water passing port 11 of the small water tank 1. The settings of the large-displacement starting mechanism 84 and the small-displacement starting mechanism 85 make the large-displacement flushing start of the present invention very convenient. If only a single-row drainage starting mechanism 8 is used to control the flap-type drain valve 4, the control mechanism 2 needs to be controlled separately. In this way, when realizing large-displacement flushing, the user needs to operate two components at the same time, which is relatively inconvenient.

[0068] A toilet flushing device of the present invention. After the toilet tank 3 drains water, the inlet valve 5 is activated to replenish water into the toilet tank 3 to a preset water level. If the small tank 1 has not drained water before this, the flap structure 21 of the small tank 1 does not act, keeping the small tank 1 in a water-filled state. If the small tank 1 has drained water before this, when the water in the toilet tank 3 reaches an appropriate water level, the flap structure 21 gradually floats upward, thereby opening the water inlet 11 of the small tank 1, allowing the water in the toilet tank 3 to enter the small tank 1 through the water inlet 11 of the small tank 1 to replenish water to the small tank 1. As Figure 11 shown, when the water level in the small tank 1 reaches the set water level, the flap structure 21 is turned downward under the action of its gravity and the water pressure F in the small tank 1, thereby closing the water inlet 11 of the small tank 1 and waiting for the next drainage.

[0069] Please refer to Figures 3 - 11 shown. A toilet of the present invention includes a toilet body 7 and a flushing device, and the flushing device adopts the toilet flushing device as described in the above-mentioned present invention. The toilet tank 3 and the toilet body 7 are integrally formed, but not limited thereto. In other embodiments, the toilet tank and the toilet body are separate and fixedly connected together.

[0070] For a toilet of the present invention, the working principle of its flushing device is as described above and will not be elaborated here.

[0071] Embodiment III

[0072] Please refer to Figure 12 shown. A toilet flushing device of the present invention is different from the second embodiment described above in that: the large-displacement starting mechanism 84 is a button-pressing type, and it controls the opening of the flap structure 21 through another lifting rod 87 cooperating with another chain 88 (or pull rope). The other lifting rod 87 is also arranged in the form of a seesaw on the fixed seat 86.

[0073] When a toilet flushing device of the present invention is working, when the small-displacement starting mechanism 85 is pressed, one end of the lifting rod 81 connected to the chain 82 is lifted, and the flap-type drain valve 4 is opened through the chain 80, causing the toilet tank 3 to drain water, thereby realizing small-displacement flushing. During this process, the other lifting rod 87 does not act, and the flap structure 21 on the small tank 1 cannot be opened. When the large-displacement starting mechanism 84 is pressed, one end of the lifting rod 81 connected to the chain 82 is lifted, and the flap-type drain valve 4 is opened through the chain 82. At the same time, one end of the other lifting rod 87 connected to the other chain 88 moves upward, and the flap structure 21 is opened upward through the other chain 88, causing the small tank 1 to drain water into the toilet tank 3, where it converges with the water in the toilet tank 3 and is discharged, thereby realizing large-displacement flushing. During the drainage process of the small tank 1, the buoyancy force on the flap structure 21 gradually decreases. After draining, the flap structure 21 is turned downward and reset under the action of gravity, thereby closing the water inlet 11 of the small tank 1.

[0074] Embodiment 4

[0075] Please refer to Figure 13 As shown, a toilet flushing device of the present invention is different from the above-mentioned Embodiment 2 and Embodiment 3 in that: the drain valve is a two-stage barrel-type drain valve 9, and is equipped with a large-displacement starting mechanism 84 and a small-displacement starting mechanism 85. Similar to the above-mentioned Embodiment 2, both the large-displacement starting mechanism 84 and the small-displacement starting mechanism 85 are button-pressing types, and the large-displacement starting mechanism 84 is connected with a lever 83, and the flap structure 21 on the small water tank 1 is started through this lever 83.

[0076] For a toilet flushing device of the present invention, when the small-displacement starting mechanism 85 is pressed and the barrel-type drain valve 9 realizes small-displacement flushing. During this process, the lever 83 has no action, and the flap structure 21 on the small water tank 1 cannot be opened. When the large-displacement starting mechanism 84 is pressed, the barrel-type drain valve 9 realizes large-displacement flushing. At the same time, the lever 83 moves downward, pushing the flap structure 21, prompting the flap structure 21 to open upward, so that the water in the small water tank 1 is discharged into the toilet tank 3, and converges with the water in the toilet tank 3 and is discharged, thereby realizing large-displacement flushing. When the toilet flushing device starts small-displacement flushing, since only the toilet tank 3 drains water, and the water storage capacity of the toilet tank 3 is less than the total water storage capacity, therefore, when performing small-displacement flushing, the drainage volume (or flushing volume) of the small-displacement flushing also decreases accordingly, so that the drainage volume of the barrel-type drain valve 9 for realizing small-displacement flushing is reduced, achieving the purpose of water conservation. When the barrel-type drain valve 9 realizes large-displacement flushing, the water in the toilet tank 3 and the small water tank 1 is discharged together, so it will not affect the drainage volume of the large-displacement flushing.

[0077] For a toilet flushing device of the present invention, its water inlet process is as described above and will not be elaborated here.

[0078] Please refer to Figure 13 As shown, a toilet of the present invention includes a toilet body 7 and a flushing device, and the flushing device adopts the toilet flushing device as described in the present invention above. The toilet tank 3 and the toilet body 7 are integrally formed, but not limited to this. In other embodiments, the toilet tank and the toilet body are separate and fixedly connected together.

[0079] For a toilet of the present invention, the working principle of its flushing device is as described above and will not be elaborated here.

[0080] Embodiment 5

[0081] Please refer to Figure 14As shown in the figure, a toilet flushing device of the present invention is different from the above embodiments in that: the water inlet part of the small water tank 1 is lower than the working water level WL of the toilet tank, and the water inlet part of the small water tank 1 is located at the top of the small water tank 1 and is provided with a water inlet 12. When replenishing water, the water in the toilet tank 3 enters the small water tank 1 from this water inlet 12. At this time, the control mechanism 2 installed at the bottom of the small water tank 1 is only used to control whether the small water tank drains or not. The water inlet 12 is specifically located on the top surface of the small water tank 1 and is formed by the top opening of the small water tank 1, but is not limited thereto. In other embodiments, the water inlet is located at the top of the side wall of the small water tank.

[0082] In this embodiment, the drain valve is a single - gear flap - type drain valve 4, but is not limited thereto. In other embodiments, the drain valve is a double - gear barrel - type drain valve. The drain start mechanism 8 cooperating with the flap - type drain valve 4 is a key - pressing type. It is connected to the flap - type drain valve 4 through a lifting rod 81 and a chain 82, and a pressure rod 83 is connected to the large - displacement start mechanism 84 of the drain start mechanism 8. The bottom of the pressure rod 83 extends into the small water tank 1. When the large - displacement start mechanism 84 is pressed, the pressure rod 83 pushes the flap structure 21, prompting the flap structure 21 to open upward. In other embodiments, the large - displacement start mechanism is connected to the flap structure through another lifting rod and a chain.

[0083] Please refer to Figure 14 As shown in the figure, a toilet of the present invention includes a toilet body 7 and a flushing device, and the flushing device adopts the toilet flushing device of the present invention as described above. The toilet tank 3 and the toilet body 7 are integrally formed, but are not limited thereto. In other embodiments, the toilet tank and the toilet body are separate and fixedly connected together.

[0084] For a toilet of the present invention, the working principle of its flushing device is as described above and will not be elaborated here.

[0085] In other embodiments, the control mechanism is a barrel - type drain valve, or the control mechanism is other mechanisms that can control water inlet and drainage or only control whether to drain or not.

[0086] For a toilet flushing method, device and toilet of the present invention, the parts not involved are the same as the prior art or can be implemented using the prior art. For example, the large - displacement start mechanism and the small - displacement start mechanism can both be implemented using the key structures of the prior art.

[0087] The above embodiments are only used to further illustrate a toilet flushing method, device and toilet of the present invention, but the present invention is not limited to the embodiments. Any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention all fall within the protection scope of the technical solution of the present invention.

Claims

1. A toilet flushing method, characterized in that: A small water tank is arranged in the toilet water tank. The small water tank is at least partially located below the working water level of the toilet water tank, and the working water level of the small water tank is higher than the water level after drainage of the toilet water tank. When flushing with a large discharge volume, both the small water tank and the toilet water tank drain water, and the water in the small water tank drains into the toilet water tank. When flushing with a small discharge volume, the small water tank does not drain water, and the toilet water tank drains water. During the water inlet stage of the toilet water tank, the drained small water tank automatically replenishes water from the toilet water tank through its water inlet part, and the water inlet part is lower than the working water level of the toilet water tank.

2. The toilet flushing method according to claim 1, wherein: The small water tank is provided with a control mechanism that can at least control whether it drains water or not.

3. The toilet flushing method according to claim 2, wherein: The water inlet part of the small water tank is located at the bottom of the small water tank, and a water passing port is arranged. A buoyancy mechanism is arranged at the water passing port. When replenishing water, the buoyancy mechanism is opened by the buoyancy force to enable the water in the toilet water tank to enter the small water tank through the water passing port. When the small water tank fills with water to the set water level, the buoyancy mechanism is closed by its own gravity and / or water pressure to close the water passing port; or, the water inlet part of the small water tank is located at the top of the small water tank, and a water inlet is provided. When replenishing water, the water in the toilet water tank enters the small water tank through the water inlet.

4. The toilet flushing method according to claim 3, wherein: The control mechanism and the buoyancy mechanism are the same one.

5. The toilet flushing method according to any one of claims 2-3, characterized in that: The control mechanism includes a flap structure, which is rotatably connected to the bottom of the small water tank to control the opening and closing of the water passing port arranged at the bottom of the small water tank. The control mechanism further includes an adjusting rod, which is arranged on the flap structure, and a counterweight block is connected to the adjusting rod and can be adjusted along the axial direction of the adjusting rod to change the center of gravity position of the flap structure in the open state.

6. The toilet flushing method according to any one of claims 2-3, characterized in that: The control mechanism is linked with the large discharge volume starting mechanism of the toilet flushing device, so that when the large discharge volume starting mechanism of the toilet flushing device starts, the control mechanism also starts accordingly to make the small water tank drain water.

7. A toilet flushing device, comprising a toilet water tank, and a drain valve is arranged in the toilet water tank; characterized in that: It further includes a small water tank, which is arranged in the toilet water tank. The small water tank is at least partially located below the working water level of the toilet water tank, and the working water level of the small water tank is higher than the water level after drainage of the toilet water tank. When flushing with a large discharge volume, both the small water tank and the toilet water tank drain water, and the water in the small water tank drains into the toilet water tank. When flushing with a small discharge volume, the small water tank does not drain water, and the toilet water tank drains water. During the water inlet stage of the toilet water tank, the drained small water tank automatically replenishes water from the toilet water tank through its water inlet part, and the water inlet part is lower than the working water level of the toilet water tank. The small water tank is provided with a control mechanism that can at least control whether it drains water or not.

8. The toilet flushing device according to claim 7, characterized in that: The water inlet part of the small water tank is located at the bottom of the small water tank, and a water passing port is arranged. A buoyancy mechanism is arranged at the water passing port. When replenishing water, the buoyancy mechanism is opened by the buoyancy force to enable the water in the toilet water tank to enter the small water tank through the water passing port. When the small water tank fills with water to the set water level, the buoyancy mechanism is closed by its own gravity and / or water pressure to close the water passing port; or, the water inlet part of the small water tank is located at the top of the small water tank, and a water inlet is provided. When replenishing water, the water in the toilet water tank enters the small water tank through the water inlet.

9. The toilet flushing device according to claim 8, characterized in that: The control mechanism and the buoyancy mechanism are the same one.

10. The toilet flushing device according to any one of claims 7-9, characterized in that: The drain valve is provided with a drain starting mechanism, which includes a large-displacement starting mechanism and a small-displacement starting mechanism. The control mechanism is linked with the large-displacement starting mechanism. When the large-displacement starting mechanism is started, the control mechanism is started accordingly to drain the small water tank.

11. The toilet flushing device according to claim 10, wherein: The control mechanism includes a flap structure, which is rotatably connected to the bottom of the small water tank to control the opening and closing of a water passing port provided at the bottom of the small water tank; the flap structure is linked with the large-displacement starting mechanism.

12. The toilet flushing device according to claim 11, characterized in that: The control mechanism further includes an adjusting rod, which is provided on the flap structure, and a counterweight block is connected to the adjusting rod and can be adjusted axially along the adjusting rod to change the center-of-gravity position of the flap structure in the open state.

13. The toilet flushing device according to claim 11, characterized in that: The large-displacement starting mechanism is of a pressing type and is connected with a pressing rod. The bottom of the pressing rod extends into the small water tank. When the large-displacement starting mechanism is pressed down, the pressing rod pushes a force-receiving part provided on the flap structure to urge the flap structure to open the water passing port; alternatively, the large-displacement starting mechanism controls the flap structure to open the water passing port through a lifting rod in cooperation with a chain or a pull rope.

14. The toilet flushing device according to claim 7, characterized in that: The small water tank is installed on the overflow pipe of the drain valve; the drain valve is a single-stage flap-type drain valve, or the drain valve is a two-stage barrel-type drain valve.

15. A toilet, comprising a toilet body and a flushing device, characterized in that: The flushing device adopts the toilet flushing device according to any one of claims 7-14.

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