Toilet tank water pump refill structure

Abstract

The utility model discloses a kind of toilet water tank water pump water replenishing structure, including water tank shell, flush component;Flush component includes water replenishing valve assembly, and valve cavity is formed in water replenishing valve assembly, and one end of water pump inlet channel is communicated at the lower surface of valve cavity, and the side surface of the upper portion of valve cavity is communicated with lower flush channel, and valve body that can move up and down along valve cavity is arranged in valve cavity.The flush of toilet and the water replenishing process are all completed in the valve cavity of water replenishing valve assembly using water flow from water pump inlet channel, and the operation mode switching of different power of water pump is carried out, and high-pressure flush and low-pressure water replenishing two functions are realized simultaneously.Compared with the independent water replenishing pipeline in traditional design, the internal structure of water tank is simplified, the cost and assembly difficulty are reduced, and the later maintenance and replacement process is simplified.

Description

Technical Field

[0001] This utility model relates to the field of toilet technology, and in particular to a toilet tank water pump water replenishment structure. Background Technology

[0002] Flush toilets have become an indispensable sanitary facility in modern life. Their working principle usually involves storing water in a tank, releasing water through a flush valve 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] In existing toilet tanks, flushing and refilling typically rely on separate structures or piping. The refilling system usually consists of a separate pipe that slowly injects a small amount of water into the toilet bowl after flushing to restore the water seal. This makes the internal structure of traditional tanks complex, with numerous parts, increasing production costs and assembly difficulty, as well as the complexity and cost of subsequent maintenance. It also hinders the miniaturization and simplification of tank designs. To simplify the structure, some toilet products on the market use water pumps for pressurized flushing. However, in these designs, the refilling function often still relies on traditional mechanical refill valves and separate refilling pipes, failing to fundamentally solve the problem of structural complexity. The water pump is merely used as a power source for flushing, and its function is not fully utilized. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a toilet tank water pump water replenishment structure, which has the characteristics of combining flushing and water replenishment functions, and has a relatively simple and reliable structure.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A toilet tank water pump water replenishment structure includes a water tank shell and a flushing assembly disposed inside the water tank shell; the flushing assembly includes a water replenishment valve assembly, a valve cavity is formed inside the water replenishment valve assembly, the lower end of the valve cavity is connected to one end of the water pump inlet channel, and a lower flushing channel is connected to one side of the upper part of the valve cavity.

[0007] The valve cavity is equipped with a valve body that can move up and down along the valve cavity. The valve body can block the valve cavity in a horizontal cross section. When the water flow from the water pump inlet channel enters the valve cavity, it can push the valve body from bottom to top and flow to the lower flushing channel. The water pump inlet channel can connect to the water pump. The water pump can operate at different power levels to realize the function of high-pressure flushing or low-pressure water replenishment of the water flow from the valve cavity to the lower flushing channel.

[0008] 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. When there is no upward water flow to flush the valve body, the valve body is blocked between the second chamber and the first chamber, so that the second chamber and the first chamber are not connected. The valve chamber and the valve body are arranged vertically.

[0009] The valve body includes a blocking disc located at the top that can fit against the inner wall of the valve cavity, a cylinder provided at the bottom of the valve body, a hollow installation channel formed in the middle of the 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.

[0010] A spring is provided between the top of the valve cavity and the top of the 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.

[0011] A sealing ring that can fit against the inner wall of the valve cavity is provided on the lower side of the blocking disc.

[0012] The inner wall of the valve cavity is provided with a guide groove, and the cylinder of the valve body is provided with guide fins that can cooperate with the guide groove.

[0013] The flushing assembly also includes a water pump, a main flushing channel connected to the water pump, and an upper flushing channel connected to the main flushing channel; the other end of the water pump inlet channel can also be connected to the main flushing channel.

[0014] A flushing switching chamber is provided on the main flushing channel, and a switching block is provided inside the flushing switching chamber. One side of the switching block is hinged to the inner wall of the flushing switching chamber. When the switching block rotates, it 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.

[0015] A float is provided on the outside of the flushing switching chamber. One end of the float is rigidly connected to one side of the switching block, so that one end of the float is hinged to the flushing switching chamber. When the water level in the water tank changes, the float can drive the switching block to rotate.

[0016] The valve chamber is provided with a vent hole that communicates with the outside.

[0017] The beneficial effects of this utility model are:

[0018] 1. The flushing and refilling processes of the toilet are both completed within the valve chamber of the refill valve assembly using water flow from the water pump inlet channel. By switching between different power operating modes of the water pump, both high-pressure flushing and low-pressure refilling functions are simultaneously achieved. Compared to the traditional design with a separate refill pipeline, this simplifies the internal structure of the water tank, reduces costs and assembly difficulty, and simplifies the later maintenance and replacement process.

[0019] 2. The valve chamber and valve body within it are arranged vertically. This design maximizes the use of the longitudinal space within the valve chamber, resulting in a more compact water supply valve assembly. Furthermore, when there is no water flow or the water pressure is low within the valve chamber, the valve body can move downwards under gravity, blocking the second chamber within the valve chamber. Compared to some horizontally arranged valve chambers, this design offers better backflow prevention and is simpler in structure, less prone to jamming. The flushing channel is located on the side of the first chamber, creating a design where the water outlet direction is nearly perpendicular to the valve body's movement direction, resulting in higher water output efficiency and enhanced flushing force. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the exploded structure of the toilet tank;

[0021] Figure 2 This is a schematic diagram of the flushing components when the water is flushed from the top.

[0022] Figure 3 This is a cross-sectional view of the flushing assembly when the water is flushed from the top.

[0023] Figure 4 This is a schematic diagram of the flushing components during the bottom flushing process;

[0024] Figure 5 It is a cross-sectional view of the flushing components during bottom flushing or water replenishment;

[0025] Figure 6 It is a cross-sectional view of the valve body inside the valve cavity without a spring;

[0026] Figure 7 This is a schematic diagram of the structure of the sidewall inside the valve cavity;

[0027] Figure 8 This is a schematic diagram of the structure inside the valve cavity;

[0028] Figure 9 This is a schematic diagram of the valve body. Detailed Implementation

[0029] 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.

[0030] Reference Figure 1-3This utility model proposes a toilet tank water pump water replenishment structure, including a water tank shell 1 and a flushing assembly 3 disposed in the water tank shell 1; the flushing assembly 3 includes a water replenishment valve assembly 30, a valve cavity 301 is formed in the water replenishment valve assembly 30, the lower part of the valve cavity 301 is connected to one end of the water pump inlet channel 33, and the upper side of the valve cavity 301 is connected to a lower flushing channel 300.

[0031] A valve body 302 is provided inside the valve cavity 301, which can move up and down along the valve cavity 301. The valve body 302 can block the valve cavity 301 in the horizontal section. When the water flow from the water pump inlet channel 33 enters the valve cavity 301, it can push the valve body 302 from bottom to top and flow to the lower flushing channel 300.

[0032] Specifically, the flushing and refilling processes of the toilet are both completed within the valve chamber 301 of the refill 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 refilling functions are simultaneously achieved. This completely eliminates the need for a separate refilling pipeline, greatly reducing the number of parts. This directly reduces the material cost, mold cost, and assembly complexity of the product. Preferably, the water pump 4 is a DC brushless water pump, and the water pump motor is set with a high-pressure flushing time. After flushing is completed, the motor power is reduced, and the system enters the low-pressure refilling mode.

[0033] 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. When there is no upward water flow to flush the valve body 302, the valve body 302 is blocked between the second chamber 301b and the first chamber 301a, so that the second chamber 301b and the first chamber 301a are not connected.

[0034] Specifically, the valve chamber 301 and the valve body 302 within it are arranged vertically. This design further utilizes the longitudinal space of the valve chamber 301, making the water supply valve assembly 30 more compact. Furthermore, when there is no water flow or the water pressure is low in the valve chamber 301, the valve body 302 can move downwards by gravity, blocking the second chamber 301b of the valve chamber 301. Compared to some horizontally arranged valve chambers, this design offers better backflow prevention and is simpler in structure, less prone to jamming. The flushing channel 300 is located on the side of the first chamber 301a, creating a design within the valve chamber 301 where the water outlet direction is nearly perpendicular to the movement direction of the valve body 302. This results in higher water output efficiency and further enhances the flushing force.

[0035] Furthermore, the system creatively distinguishes between two operating modes for the water pump: a high-power mode for bottom flushing, providing a strong water flow to flush the top valve body 302 and complete the sewage discharge; and a low-power mode for water replenishment, providing a stable, low-flow water flow to maintain the valve body open and form a water seal. This electronically controlled power switching method, compared to the easily malfunctioning mechanical water replenishment valve, offers more precise control, faster response, and higher reliability, completely solving the problems of leakage or water replenishment failure caused by mechanical mechanism jamming and wear.

[0036] Reference Figure 7 The 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 valve body 302, a hollow installation channel 3024 formed in the middle of the 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.

[0037] Optionally, refer to Figure 3 A spring 303 is provided between the top of the valve cavity 301 and the top of the 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.

[0038] Reference Figure 6 , Figure 7 As one implementation method, when there is no water flow, the valve body 302 can move downward 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.

[0039] Reference Figure 7 Furthermore, 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.

[0040] Preferably, refer to Figure 9 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.

[0041] Reference Figure 8 , Figure 9The inner wall of the valve cavity 301 is provided with a guide groove 3011, and the cylindrical body 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.

[0042] Reference Figure 1 , Figure 3 and Figure 5 The flushing assembly 3 also includes a water pump 4, a main flushing channel 32 connected to the water pump 4, and an upper flushing channel 310 connected to the main flushing channel 32; the other end of the water pump inlet channel 33 can also be connected to the main flushing channel 32. Preferably, the water pump 4 is a brushless DC water pump.

[0043] Reference Figure 2-5 A flushing switching chamber 31 is provided on the main flushing channel 32, and a switching block 50 is provided inside the flushing switching chamber 31. One side of the switching block 50 is hinged to the inner wall of the flushing switching chamber 31. When the switching block 50 rotates, it 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.

[0044] A float 5 is provided on the outside of the flushing switching chamber 31. One end of the float 5 is rigidly connected to one side of the switching block 50 so that one end of the float 5 is hinged to the flushing switching chamber 31. When the water level in the water tank shell 1 changes, the float 5 can drive the switching block 50 to rotate.

[0045] Specifically, the linkage mechanism consisting of the float 5 and the switching block 50 can automatically switch the flushing mode according to changes in the water level in the tank. First, the water pump 4 starts, and the water level in the tank is high, with the float 5 above the water level. The switching block 50 blocks the other end of the water pump inlet channel 33, allowing water to flow only from the main flush channel 32 to the upper flush channel 310, thus cleaning the toilet bowl. Next, the water level drops, the power of the water pump 4 decreases, and the other end of the float 5 falls, causing one end of the float 5 to rotate. The switching block 50 rotates accordingly, blocking the lower part of the flush channel 310. The water flow then switches to flow only from the main flush channel 32 to the water pump inlet channel 33, increasing the power and pressurizing the water pump 4 to perform a flush. Users do not need any manual intervention, achieving a "one-button operation, automatic completion" intelligent flushing process with a high degree of intelligence and a good user experience.

[0046] Reference Figure 1The water tank shell 1 also includes a top cover 10, the water inlet valve assembly 2 includes a water inlet interface 21, and the flushing assembly 3 includes an upper flushing channel 310; the top cover 10 is provided with a water inlet interface 21, a lower flushing channel 300, and an outlet 100 for the upper flushing channel 310. Specifically, the water tank has a compact overall structure, and the various components are arranged in a reasonable and compact manner, making it suitable for placement and installation in various environments.

[0047] In summary, this toilet tank eliminates the traditional water replenishment component, resulting in a more compact and rational internal structure. It utilizes a water pump for flushing and water replenishment, which is not only highly efficient and responsive, but also solves the technical pain points of traditional toilet tanks, such as complex structure, high failure rate, and redundant space. It brings technical benefits in terms of simplifying structure, reducing cost, improving reliability, achieving intelligent control, and optimizing space layout.

Claims

1. A toilet tank water pump water replenishment structure, characterized in that, The system includes a water tank housing (1) and a flushing assembly (3) disposed within the water tank housing (1). The flushing assembly (3) includes a water supply valve assembly (30), which has a valve chamber (301) formed therein. The lower part of the valve chamber (301) is connected to one end of the water pump inlet channel (33), and the upper side of the valve chamber (301) is connected to a lower flushing channel (300). The valve cavity (301) is provided with a valve body (302) that can move up and down along the valve cavity (301). The valve body (302) can block the valve cavity (301) on a horizontal cross section. When the water flow from the water pump inlet channel (33) enters the valve cavity (301), it can push the valve body (302) from bottom to top and flow to the lower flushing channel (300). The water pump inlet channel (33) can connect to the water pump (4). The water pump (4) can operate at different power levels to realize the function of high-pressure flushing or low-pressure water replenishment of the water in the valve cavity (301) to the lower flushing channel (300).

2. The toilet tank water pump water replenishment structure 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). The valve body (302) can block the second chamber (301b). Both the valve chamber (301) and the valve body (302) are arranged vertically.

3. The toilet tank water pump water replenishment structure according to claim 1, characterized in that, The 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 valve body (302), a hollow installation channel (3024) formed in the middle of the 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).

4. The toilet tank water pump water replenishment structure according to claim 3, characterized in that, A spring (303) is provided between the top of the valve cavity (301) and the top of the 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).

5. The toilet tank water pump water replenishment structure according to claim 3, characterized in that, The lower side of the blocking disc (3020) is provided with a sealing ring (3021) that can fit against the inner wall of the valve cavity (301).

6. The toilet tank water pump water replenishment structure according to claim 3, characterized in that, The valve cavity (301) has a guide groove (3011) on its inner sidewall, and the cylinder (3022) of the valve body (302) has guide fins (3023) around its perimeter that can cooperate with the guide groove (3011).

7. The toilet tank water pump water replenishment structure according to claim 1, characterized in that, The flushing assembly (3) also includes a water pump (4), a main flushing channel (32) connected to the water pump (4), and an upper flushing channel (310) connected to the main flushing channel (32); the other end of the water pump inlet channel (33) can also be connected to the main flushing channel (32).

8. The toilet tank water pump water replenishment structure according to claim 7, characterized in that, A flushing switching chamber (31) is provided on the main flushing channel (32), and a switching block (50) is provided inside the flushing switching chamber (31). One side of the switching block (50) is hinged to the inner wall of the flushing switching chamber (31). When the switching block (50) rotates, it 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 water pump water replenishment structure according to claim 8, characterized in that, A float (5) is provided on the outside of the flushing switching chamber (31). One end of the float (5) is rigidly connected to one side of the switching block (50) so that one end of the float (5) is hinged to the flushing switching chamber (31). When the water level in the water tank shell (1) changes, the float (5) can drive the switching block (50) to rotate.

10. A toilet tank water pump water replenishment structure according to claim 1, characterized in that, The valve chamber (301) is provided with a vent (305) that communicates with the outside.

Images