A toilet tank flusher

Abstract

The utility model discloses a kind of toilet water tank flushing device, including water tank shell, flushing component. After the water flow of water pump inlet channel enters valve cavity, top first valve body is flushed out from lower flushing channel, realize the lower flushing operation in toilet pool, when lower flushing operation is completed, continue to supplement water flow into valve cavity, cooperate first valve body, can carry out water supplement operation to toilet pool. Compared with independent external water supplement pipeline in traditional technology, the number of parts is reduced, the installation process is simplified, so that the internal structure of water tank is more simple, compact and reliable. Float piece adopts rod structure, one end directly drives switching block, the other end is provided with buoyancy part, compared with traditional spherical float volume, its form is more conducive to arrangement in water tank, saves space for water tank, realizes the compactness of water tank, modularization.

Description

Technical Field

[0001] This utility model relates to the field of toilet tank technology, and in particular to a toilet tank flushing device. Background Technology

[0002] Flush toilets have become an indispensable sanitary facility in modern life. Their working principle usually involves using a water tank to store water, releasing water to flush out waste, and replenishing the water trap in the toilet bowl after flushing to re-form a water seal that isolates odors.

[0003] Current mainstream traditional toilet tank flushing devices typically treat the flushing system, water replenishment system, and water level control system as relatively independent modules in their internal structure design. This leads to a series of inherent problems such as complex overall structure, poor coordination, and low efficiency. For example, traditional water replenishment methods usually rely on a separate external water replenishment pipeline, increasing additional parts and installation costs, resulting in low efficiency and backflow. At the same time, the float structure inside existing tanks is bulky, has high inertia, and responds slowly to changes in water level, resulting in low control precision. This further limits the optimization of the internal structure layout, making it difficult to achieve a compact and modular design for the tank.

[0004] Furthermore, with the popularization of smart technology, toilets are also developing towards a smarter and more efficient direction, making the integrated design of their internal structure and the improvement of flushing and water replenishment efficiency particularly important. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a toilet tank flushing device, which has the following features.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows:

[0007] A toilet tank flushing device includes a tank housing, wherein a flushing assembly for pumping water from the tank into the toilet bowl is provided inside the tank housing, and an inlet valve assembly for controlling the water entering the tank.

[0008] The flushing assembly includes a water supply valve assembly, which has a valve chamber. The lower end of the valve chamber is connected to the water pump inlet channel, and the upper side of the valve chamber is connected to a lower flushing channel. A first valve body that can move up and down is provided in the valve chamber. The water flow in the valve chamber can flush the first valve body from bottom to top and flow to the lower flushing channel.

[0009] The flushing assembly also includes a water pump and a switching chamber that is normally connected to the water pump. The switching chamber is connected to an upper flushing channel and can communicate with either the water pump inlet channel or the upper flushing channel. A rotatable switching block is installed inside the switching chamber, and a float is installed outside the switching chamber. The float is rod-shaped, with one end rigidly connected to the switching block and the other end having a buoyancy component. When the water level in the tank changes, the float can drive the switching block to rotate, causing the switching block to block the water flow between the water pump and the upper flushing channel or between the water pump and the water pump inlet channel.

[0010] The valve chamber is cylindrical and includes an upper first chamber and a lower second chamber. The flushing channel is connected to the side of the first chamber, and the first valve body can block the second chamber.

[0011] The second cavity is connected to a water supply channel on one side. A second valve body that can move up and down is also provided between the second cavity and the water pump inlet channel. The water flow in the water pump inlet channel can push against the second valve body and flow into the second cavity. The outlet of the water supply channel in the second cavity is located above the second valve body.

[0012] The water inlet valve assembly is equipped with a water supply pipe that communicates with the water supply channel.

[0013] At the other end of the float, a counterweight is provided adjacent to the buoyancy part. The counterweight is a container with an upward opening, and the buoyancy part is a container with a downward opening.

[0014] The upward opening of the counterweight forms a first opening plane. When the switching block blocks the water flow between the switching chamber and the water pump inlet channel, the first opening plane forms an angle α with the horizontal plane, where α ≠ 0.

[0015] The downward opening of the buoyancy section forms a second opening plane. When the switching block blocks the water flow between the switching chamber and the upper flushing channel, the second opening plane forms an angle β with the horizontal plane, where β ≠ 0.

[0016] The water pump is connected to the switching chamber through the main flushing channel. One side of the switching block is hinged to the inner wall of the switching chamber through a rotating shaft. One end of the float is a rotating end, which is rigidly connected to the rotating shaft. When the rotating shaft rotates, the switching block rotates, which can block the water flow between the main flushing channel and the upper flushing channel or block the water flow between the main flushing channel and the water pump inlet channel.

[0017] The first valve body includes a blocking disc located at the upper part that can fit against the inner wall of the valve cavity, a cylinder provided at the lower part of the first valve body, a hollow installation channel formed in the middle of the first valve body, and an installation post provided at the top of the inner side of the valve cavity that can cooperate with the installation channel.

[0018] A spring is provided between the top of the valve cavity and the top of the first valve body. The spring is sleeved on the outside of the mounting post, and the lower end of the spring abuts against the upper end of the blocking disc.

[0019] The beneficial effects of this utility model are:

[0020] 1. After the water flows into the valve chamber through the pump inlet channel, the first flushing valve body exits from the flushing channel, enabling the flushing operation in the toilet bowl. After the flushing operation is completed, water can be continuously added to the valve chamber in conjunction with the first flushing valve body to replenish the toilet bowl. Compared to the independent external water supply pipeline in traditional technology, this reduces the number of parts, simplifies the installation process, and makes the internal structure of the water tank more concise, compact, and reliable. Furthermore, the float component adopts a rod-shaped structure, with one end directly driving the switching block and the other end equipped with a buoyancy unit. Compared to the traditional spherical float, its volume is simplified, and its shape is more conducive to arrangement within the water tank, saving space and achieving a compact and modular water tank.

[0021] 2. During flushing, the water pump first pressurizes the water, resulting in a high water level. Under the action of the float, the switching block blocks the space between the pump inlet and the main flush channel, allowing water to flow from the upper flush channel for the initial flush. Next, the water level drops, but due to the water pressure within the switching chamber, the switching block maintains its position, preventing the float from rotating immediately. When the pump reduces pressure at low power, gravity causes the switching block to rotate, blocking the space between the main flush channel and the upper flush channel. Then, the pump switches to high power, pumping water through the pump inlet into the valve chamber, flushing the first valve body before entering the lower flush channel for the final flush. This design, through the pump, switching chamber, and intelligently controlled switching block, creates a highly efficient water flow path switching system. It automatically switches the water flow direction, achieving intelligent and automatic switching of flushing modes, ensuring effective flushing under different water level conditions, and improving the intelligence and efficiency of the flushing process. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the exploded structure of the water tank;

[0023] Figure 2 This is a structural diagram of the flushing assembly and the inlet valve assembly;

[0024] Figure 3 This is an exploded structural diagram of a portion of the flushing assembly.

[0025] Figure 4 This is a schematic diagram of the flushing assembly in the flushing state;

[0026] Figure 5 This is a cross-sectional view of the flushing assembly in the flushing state in Embodiment 1;

[0027] Figure 6 This is a schematic diagram of the flushing assembly in the down-flushing state;

[0028] Figure 7 This is a cross-sectional view of the flushing assembly in the down-flushing state in Embodiment 1;

[0029] Figure 8 This is a cross-sectional view from another side when the flushing assembly is in the downward flushing state in Embodiment 1;

[0030] Figure 9 This is a structural schematic diagram of the valve cavity, the first valve body, and the second valve body;

[0031] Figure 10 This is a structural schematic diagram of the pontoon component;

[0032] Figure 11 These are side sectional views of the pontoon component before and after rotation.

[0033] Figure 12 This is a cross-sectional view of the flushing assembly in the flushing state in Embodiment 2;

[0034] Figure 13 This is a cross-sectional view of the flushing assembly in the flushing state in Embodiment 2. Detailed Implementation

[0035] To make the technical problem solved by this utility model, the technical solution adopted, and the technical effect achieved clearer, the technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining this utility model and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this utility model are shown in the accompanying drawings, not all of them.

[0036] Reference Figure 1 This utility model proposes a toilet tank flushing device, including a tank shell 1, and a flushing component 3 for pumping water from the tank into the toilet bowl, and an inlet valve component 2 for controlling the water entering the tank.

[0037] Reference Figure 4 , Figure 5 The flushing assembly 3 includes a water supply valve assembly 30, which has a valve cavity 301. The lower end of the valve cavity 301 is connected to the water pump inlet channel 33, and the upper side of the valve cavity 301 is connected to a lower flushing channel 300. A first valve body 302 that can move up and down is provided in the valve cavity 301. The water flow in the valve cavity 301 can flow from bottom to top to push the first valve body 302 and flow to the lower flushing channel 300.

[0038] Reference Figure 3, Figure 5 The flushing assembly 3 also includes a water pump 4 and a switching chamber 31 that is normally connected to the water pump 4. The switching chamber 31 is connected to an upper flushing channel 310 and can communicate with the water pump inlet channel 33 or the upper flushing channel 310. A rotatable switching block 50 is provided inside the switching chamber 31, and a float 5 is provided outside the switching chamber 31. The float 5 is rod-shaped, with one end rigidly connected to the switching block 50 and the other end having a buoyancy part 52. When the float 5 changes due to changes in the water level in the water tank, it can drive the switching block 50 to rotate, causing the switching block 50 to block the water flow between the water pump 4 and the upper flushing channel 310 or block the water flow between the water pump 4 and the water pump inlet channel 33.

[0039] Specifically, during the flushing operation, the water pump 4 first pressurizes the water, resulting in a higher water level. Under the action of the float 5, the switching block 50 blocks the water pump inlet channel 33 and the main flush channel 32, and the water flows out from the upper flush channel 310 for the upper flushing operation in the toilet bowl. Then, the water level drops, but due to the water pressure in the switching chamber 31, the water pressure maintains the position of the switching block 50, and the float 5 does not rotate immediately. When the water pump 4 briefly reduces the pressure at low power, the float 5 drives the switching block 50 to rotate under the action of gravity, and the switching block 50 blocks the main flush channel 32 and the upper flush channel 310. Then, the water pump 4 switches to high power to pressurize the water, and the water flows through the water pump 4 inlet channel into the valve chamber 301, flushes the first valve body 302, and then enters the lower flush channel 300 for the lower flushing operation in the toilet bowl. This design, through the water pump 4, the switching chamber 31, and the switching block 50 intelligently controlled by the float component 5, constitutes a highly efficient water flow path switching system. It automatically switches the direction of the water flow, achieving intelligent and automatic switching of the flushing mode, ensuring effective flushing under different water level conditions, and improving the intelligence and efficiency of the flushing process. Preferably, the water pump 4 is a brushless DC water pump.

[0040] Reference Figure 5 , Figure 7 Preferably, the valve cavity 301 is cylindrical, comprising an upper first cavity 301a and a lower second cavity 301b, the lower flushing channel 300 is connected to the side of the first cavity 301a, and the first valve body 302 can block the second cavity 301b.

[0041] As an example, refer to Figure 5-8The second cavity 301b is connected to a water supply channel 200 on one side. A second valve body 304 that can move up and down is also provided between the second cavity 301b and the water pump inlet channel 33. The water flow from the water pump inlet channel 33 can push against the second valve body 304 and flow into the second cavity 301b. The outlet 201 of the water supply channel 200 in the second cavity 301b is positioned horizontally above the second valve body 304. The water inlet valve assembly 2 is provided with a water supply pipe 20 that communicates with the water supply channel 200.

[0042] Furthermore, one end of the water pump inlet channel 33 is a vertically arranged vertical inlet channel 330, the lower part of the valve chamber 301 is connected to the vertical inlet channel 330, and the second valve body 304 is located between the vertical inlet channel 330 and the valve chamber 301.

[0043] Specifically, in Embodiment 1, a first valve body 302 and a second valve body 304 are provided in the valve cavity 301, and the second cavity 301b is connected to a water supply channel 200. When the toilet performs a down-flush, water flows into the valve chamber 301 from the water pump inlet channel 33 and the replenishment inlet channel 200. The water flow can push upwards against the first valve body 302 and the second valve body 304 and enter the down-flush channel 300. When the down-flush stops and the toilet is replenished, the water pump 4 stops working, and the water flow only enters the second chamber 301b from the replenishment inlet channel 200. Since the outlet of the replenishment inlet channel 200 in the second chamber 301b is located above the second valve body 304, the water flow can push upwards against the first valve body 302 and enter the down-flush channel 300. At this time, the second valve body 304 falls downwards due to gravity, blocking the water pump inlet channel 33, effectively preventing the water flow during the replenishment process from flowing back into the water pump inlet channel 33. During the down-flush, the water flow from the water pump inlet channel 33 and the replenishment inlet channel 200 converges, increasing the flushing pressure and ensuring flushing power. Example 1 adopts a dual-valve body and water supply pipeline design, which combines efficient flushing and avoids backflow of water.

[0044] As an example two, refer to Figure 12 , Figure 13At this time, only the first valve body 302 is installed in the valve cavity 301, and there is no water inlet channel 200 connected to the valve cavity 301. The flushing and water replenishment processes of the toilet are completed in the valve cavity 301 of the water replenishment valve assembly 30 using water flow from the water pump inlet channel 33. By switching between different power operating modes of the water pump 4, both high-pressure flushing and low-pressure water replenishment functions are realized simultaneously. Specifically, during the flushing and water replenishment operations, the water pump 4 has two operating modes: a high-power mode is used for flushing, providing a strong water flow to flush the top valve body 302 and complete the sewage discharge; a low-power mode is used for water replenishment, providing a stable small flow of water to keep the valve body open and form a water seal. This completely eliminates the need for a separate water replenishment pipeline and greatly reduces the number of parts. This directly reduces the material cost, mold cost, and assembly complexity of the product. This embodiment two utilizes the water pump 4 to realize flushing and water replenishment, which is highly efficient, has a fast response, and is particularly outstanding in terms of intelligent control and optimized spatial layout.

[0045] Furthermore, in Embodiments 1 and 2, the valve cavity 301 and the first valve body 302 or the second valve body 304 within the valve cavity 301 are arranged vertically. On the one hand, this further utilizes the longitudinal space of the valve cavity 301, making the water supply valve assembly 30 more compact. On the other hand, when there is no water flow or the water pressure is low in the valve cavity 301, the first valve body 302 or the second valve body 304 can move downwards by gravity. Compared with some horizontally arranged valve cavities, it has better backflow prevention capabilities and a simpler structure that is less prone to jamming. The flushing channel 300 is located on the side of the first cavity 301a, forming a design within the valve cavity 301 where the water outlet direction is nearly perpendicular to the moving direction of the valve body 302, resulting in higher water outlet efficiency and further enhancing the flushing force.

[0046] Reference Figure 10 , Figure 11 At the other end of the float 5, a counterweight 51 adjacent to the buoyancy part 52 is provided. The counterweight 51 is a container with an upward opening, and the buoyancy part 52 is a container with a downward opening. Specifically, the rod-shaped float 5, its buoyancy part 52, and the counterweight 51 at its end constitute a highly efficient lever system. Its mass distribution is designed to balance the water flow pressure on the switching block 50 during the operation of the water pump 4. When water is pumped out from the upper flushing channel 310, the weight of the counterweight 51 balances the pressure of the water flow on one side of the switching block 50, keeping the float 5 in balance. When the pressure of the water flow on one side of the switching block 50 decreases, the weight of the counterweight 51 becomes greater than the pressure of the water flow on one side of the switching block 50, causing the float 5 to rotate. The float 5 designed in this way has less inertia than traditional floats, enabling it to drive the switching block 50 to rotate without lag, switching the water flow path in a timely manner, thereby significantly improving the accuracy of water level control.

[0047] Reference Figure 11The upward opening of the counterweight 51 forms a first opening plane 510. When the switching block 50 blocks the water flow between the switching chamber 31 and the water pump inlet channel 33, the first opening plane 510 forms an angle α with the horizontal plane, where α ≠ 0. (Refer to...) Figure 11 The downward opening of the buoyancy section 52 forms a second opening plane 520. When the switching block 50 blocks the water flow between the switching chamber 31 and the upward flushing channel 310, the second opening plane 520 forms an angle β with the horizontal plane, where β≠0. Specifically, the first opening plane 510 forms a certain angle with the horizontal plane. When the counterweight section 51 is full of water, the water can flow out more linearly due to gravity, and the weight reduction of the counterweight section 51 is more gradual. In addition, when the water level in the tank rises, the water can also flow into the counterweight section 51 more linearly. Furthermore, the second opening plane 520 also forms a certain angle with the horizontal plane, preventing an excessive number of air bubbles in the buoyancy section 52 at the beginning, which would cause a sudden change in buoyancy and prevent the counterweight section 51 from being unable to receive enough water for counterweighting. The inclined design of the first opening plane 510 and the second opening plane 520 makes the attitude switching of the float 5 at different water levels more linear and precise, further enhancing the reliability and stability of the system.

[0048] Reference Figure 4-7 The water pump 4 is connected to the switching chamber 31 through the main flushing channel 32. One side of the switching block 50 is hinged to the inner wall of the switching chamber 31 through the rotating shaft 500. One end of the float 5 is a rotating end 53, which is rigidly connected to the rotating shaft 500. When the rotating shaft 500 rotates, the switching block 50 rotates, which can block the water flow between the main flushing channel 32 and the upper flushing channel 310 or block the water flow between the main flushing channel 32 and the water pump inlet channel 33.

[0049] Reference Figure 9 The first valve body 302 includes a blocking disc 3020 located at the upper part that can fit against the inner wall of the valve cavity 301, a cylinder 3022 provided at the lower part of the first valve body 302, a hollow installation channel 3024 formed in the middle of the first valve body 302, and an installation post 3010 provided at the top of the inner side of the valve cavity 301 that can cooperate with the installation channel 3024.

[0050] In one implementation, when there is no water flow, the valve body 302 can move downwards by gravity to achieve the blocking effect. The spring 303 and the mounting post 3010 do not need to be set on the top of the valve body 302, which makes the structure simpler and less prone to jamming.

[0051] Reference Figure 9Furthermore, a vent 305 communicating with the outside is provided inside the valve chamber 301. The vent 305 ensures that the pressure inside the valve chamber 301 remains balanced with atmospheric pressure, effectively disrupting the sealed environment and pressure difference conditions created by the siphon effect. This fundamentally prevents wastewater in the toilet bowl from being drawn back into the clean water tank through the flushing channel 300 when water replenishment is complete or when system pressure is abnormal, completely avoiding the risk of cross-contamination and greatly improving the product's hygiene, safety, and reliability. This design is simple in structure, requires no additional anti-siphon valve, is low in cost, and yields significant results.

[0052] Preferably, a spring 303 is provided between the top of the valve cavity 301 and the top of the first valve body 302. The spring 303 is sleeved on the outside of the mounting post 3010, and the lower end of the spring 303 abuts against the upper end of the blocking disc 3020.

[0053] Preferably, a sealing ring 3021 is provided on the lower side of the blocking disc 3020, which can fit against the inner wall of the valve cavity 301. The sealing ring 3021 ensures that the valve body 302 can fit tightly against the inner wall of the second cavity 301b when it falls under gravity or spring force, forming a reliable seal and effectively preventing leakage when not in operation.

[0054] Reference Figure 9 Preferably, the inner wall of the valve cavity 301 is provided with a guide groove 3011, and the cylinder 3022 of the valve body 302 is provided with guide fins 3023 around its perimeter that can cooperate with the guide groove 3011. The cooperation between the guide fins 3023 and the guide groove 3011 provides precise guidance and limitation for the up and down movement of the valve body 302, effectively preventing the valve body 302 from deviating, jamming, or abnormally wearing against the inner wall of the valve cavity during movement, thereby ensuring the stability and consistency of the operation and extending the service life of the entire component.

[0055] In summary, through the aforementioned series of structural improvements, this application successfully integrates flushing, water replenishment, and water level control functions, forming an integrated flushing device with simplified structure, compact layout, rapid response, and improved efficiency. This aligns with the current development trend of intelligent and efficient bathroom products, and possesses outstanding substantive features and significant technological advancements.

Claims

1. A toilet tank flushing device, characterized in that, include The water tank housing (1) is provided with a flushing assembly (3) for pumping water from the water tank into the toilet bowl, and an inlet valve assembly (2) for controlling the water entering the water tank. The flushing assembly (3) includes a water supply valve assembly (30), in which a valve cavity (301) is formed. The lower end of the valve cavity (301) is connected to the water pump inlet channel (33), and the upper side of the valve cavity (301) is connected to a lower flushing channel (300). A first valve body (302) that can move up and down is provided in the valve cavity (301). The water flow in the valve cavity (301) can flow from bottom to top to push the first valve body (302) and flow to the lower flushing channel (300). The flushing assembly (3) also includes a water pump (4) and a switching chamber (31) that is normally connected to the water pump (4). The switching chamber (31) is connected to an upper flushing channel (310). The switching chamber (31) can be connected to the water pump inlet channel (33) or the upper flushing channel (310). A rotatable switching block (50) is provided inside the switching chamber (31). A float (5) is provided outside the switching chamber (31). The float (5) is rod-shaped. One end of the float (5) is rigidly connected to the switching block (50), and the other end is provided with a buoyancy part (52). When the float (5) changes due to the water level in the water tank, it can drive the switching block (50) to rotate, so that the switching block (50) blocks the water flow between the water pump (4) and the upper flushing channel (310) or blocks the water flow between the water pump (4) and the water pump inlet channel (33).

2. The toilet tank flushing device according to claim 1, characterized in that, The valve chamber (301) is cylindrical and includes an upper first chamber (301a) and a lower second chamber (301b). The flushing channel (300) is connected to the side of the first chamber (301a), and the first valve body (302) can block the second chamber (301b).

3. A toilet tank flushing device according to claim 2, characterized in that, The second cavity (301b) is connected to a water supply channel (200) on one side. A second valve body (304) that can move up and down is also provided between the second cavity (301b) and the water pump inlet channel (33). The water flow in the water pump inlet channel (33) can push against the second valve body (304) and flow into the second cavity (301b). The water supply channel (200) is located above the second valve body (304) at the horizontal position of the outlet (201) in the second cavity (301b).

4. A toilet tank flushing device according to claim 1, characterized in that, The valve chamber (301) is provided with a vent (305) that communicates with the outside.

5. A toilet tank flushing device according to claim 1, characterized in that, At the other end of the float (5), a counterweight (51) is provided adjacent to the buoyancy part (52). The counterweight (51) is a container with an upward opening, and the buoyancy part (52) is a container with a downward opening.

6. A toilet tank flushing device according to claim 5, characterized in that, The upward opening of the counterweight (51) forms a first opening plane (510). When the switching block (50) blocks the water flow between the switching chamber (31) and the water pump inlet channel (33), the first opening plane (510) forms an angle α with the horizontal plane, where α ≠ 0.

7. A toilet tank flushing device according to claim 5, characterized in that, The downward opening of the buoyancy part (52) forms a second opening plane (520). When the switching block (50) blocks the water flow between the switching cavity (31) and the upper flushing channel (310), the second opening plane (520) forms an angle β with the horizontal plane, where β ≠ 0.

8. A toilet tank flushing device according to claim 1, characterized in that, The water pump (4) is connected to the switching chamber (31) through the main flushing channel (32). One side of the switching block (50) is hinged to the inner wall of the switching chamber (31) through the rotating shaft (500). One end of the float (5) is a rotating end (53). The rotating end (53) is rigidly connected to the rotating shaft (500). When the rotating shaft (500) rotates, the switching block (50) rotates, which can block the water flow between the main flushing channel (32) and the upper flushing channel (310) or block the water flow between the main flushing channel (32) and the water pump inlet channel (33).

9. A toilet tank flushing device according to claim 1, characterized in that, The first valve body (302) includes a blocking disc (3020) located at the upper part that can fit against the inner wall of the valve cavity (301), a cylinder (3022) is provided at the lower part of the first valve body (302), a hollow installation channel (3024) is formed in the middle of the first valve body (302), and an installation post (3010) that can cooperate with the installation channel (3024) is provided at the top of the inner side of the valve cavity (301).

10. A toilet tank flushing device according to claim 9, characterized in that, A spring (303) is provided between the top of the valve cavity (301) and the top of the first valve body (302). The spring (303) is sleeved on the outside of the mounting post (3010), and the lower end of the spring (303) abuts against the upper end of the blocking disc (3020).

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