Water flushing system with pump for intelligent closestool water tank and intelligent closestool water tank

Abstract

The flushing system with the pump for the intelligent closestool water tank comprises a water pump, a pipe set and a buoy assembly which are assembled in the water tank, the pipe set is provided with a water inlet pipe, a first water outlet pipe and a second water outlet pipe, and the first water outlet pipe and the second water outlet pipe are respectively communicated with the water inlet pipe. The output end of the water pump is connected with the water inlet pipe; the first water outlet pipe is provided with a switch valve, and a pressure release valve is arranged in the second water outlet pipe. The float bowl assembly comprises a switching piece, a first float bowl and a second float bowl, the switching piece is provided with a triggering part corresponding to a driving part of the switching valve, the first float bowl is connected with the switching piece, and the second float bowl and the switching piece form delay linkage; along with the decline of the water level, the first water outlet pipe and the second water outlet pipe can be switched to discharge water twice, and the device has the advantages of being simple in structure, stable in switching and reliable in action.

Description

Technical Field

[0001] This utility model relates to the field of smart toilet accessories, specifically to a pump-equipped flushing system for a smart toilet tank and a smart toilet tank. Background Technology

[0002] Currently, due to the popularity of integrated smart toilets, low-profile ceramic tanks or tankless toilets are gradually becoming the trend. Since smart toilets are electrically powered, using an electric pump to drive the drain valve becomes a feasible solution. Toilets have two flushing modes: top flush (i.e., flushing with the brush ring) and bottom flush. Traditional toilets first flush top, then switch to bottom flush, replenishing the water seal directly through the bottom flush. Of course, structures that can switch back to top flush for replenishment have also emerged, such as the toilet water circuit switching mechanism and toilet disclosed in CN210086393U; however, this solution uses a rotating switching element, with water continuously pressurizing the element, making switching difficult. Utility Model Content

[0003] Therefore, this utility model provides a pump-driven flushing system and a smart toilet tank for use with a smart toilet tank, so as to achieve the switching between two flushing modes in another way.

[0004] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0005] A pump-driven flushing system for a smart toilet tank includes a water pump, a pipe assembly, and a float assembly assembled within the tank. The pipe assembly has an inlet pipe and a first outlet pipe and a second outlet pipe respectively connected to the inlet pipe. The output end of the water pump is connected to the inlet pipe. The first outlet pipe is equipped with a switching valve, which has a drive part that drives it to open or close the first outlet pipe. A pressure relief valve is installed in the second outlet pipe. The float assembly includes a switching element, a first float, and a second float. The switching element is equipped with a trigger part corresponding to the drive part of the switching valve. The trigger part has two engagement positions: contacting the drive part and disengaging from the drive part. The engagement position of the trigger part and the drive part at the initial water level is defined as the first position, and the other engagement position is defined as the second position.

[0006] The first float is connected to the switching component, and the second float forms a delayed linkage with the switching component; the drop in water level in the water tank causes the first float to drive the switching component to move before the second float, thereby switching the trigger part from the first position to the second position, and when the second float forms a linkage with the switching component, the second float drives the switching component to move in the opposite direction, thereby switching the trigger part from the second position to the first position.

[0007] Furthermore, when the trigger part and the drive part are in the first position, the switch valve is in the open state; when the trigger part and the drive part are in the second position, the switch valve is in the closed state.

[0008] Furthermore, the first outlet pipe is connected to the first outlet of the inlet pipe via a switching valve. The switching valve is a valve body with a back pressure chamber, including a valve shell and a sealing diaphragm assembly. The valve shell and the sealing diaphragm assembly are connected to form the back pressure chamber. The sealing diaphragm assembly corresponds to the first outlet of the inlet pipe. The valve shell has a drain port that communicates with the back pressure chamber. The drain port serves as the driving part of the switching valve. In the first position, the trigger part disengages from the drain port, causing the switching valve to be in the state of opening the first outlet. In the second position, the trigger part blocks the drain port, causing the switching valve to be in the state of closing the outlet.

[0009] Furthermore, the trigger part of the switching component is a sealing plane corresponding to the drain outlet.

[0010] Furthermore, the switching component is a switching lever, having a first arm and a second arm, with the first float connected to the first arm and the second float and the second arm forming a delayed linkage.

[0011] Furthermore, the second float is provided with an upwardly extending hook, and the second arm of the switching component is located below the hook. When the second float moves down to be linked with the switching component, the hook is hooked onto the second arm of the switching component.

[0012] Furthermore, the second pontoon is vertically oriented.

[0013] Furthermore, the inlet pipe of the pipe assembly is a vertically arranged rigid pipe, and the second float forms a guiding fit with the inlet pipe; or, the inner wall of the water tank is provided with a vertical guide channel, and the second float is assembled in the vertical guide channel.

[0014] Furthermore, the switching valve is a push-button type switching valve, and the driving part of the switching valve is a push-button head. When the trigger part contacts and presses the push-button head, the switching valve is in the open state; when the trigger part disengages from the push-button head, the push-button head is reset and in the closed state.

[0015] A smart toilet tank includes a tank and a flushing system. The flushing system is a pump-driven flushing system for smart toilet tanks as described above. Of the first and second water outlet pipes, one is used to connect to the upper flushing channel of the toilet, and the other is used to connect to the lower flushing channel of the toilet.

[0016] The technical solution provided by this utility model has the following beneficial effects:

[0017] The first outlet pipe is equipped with a switch valve, and the second outlet pipe is equipped with a pressure relief valve. The switch valve is controlled by a float assembly. When the switch valve is open, water flows out of the first outlet pipe. When the switch valve is closed, the first outlet pipe is shut off, and the pressure relief valve opens under water pressure, allowing water to flow out of the second outlet pipe. As the water level drops, the first float drives the switching element to move before the second float, causing the trigger to switch from the first position to the second position, completing the first water outlet switch. When the second float and the switching element are linked, the second float drives the switching element to move in the opposite direction, causing the trigger to switch from the second position to the first position, completing the second water outlet switch. In this way, the first and second outlet pipes can switch back and forth to supply water. It features a simple structure, stable switching, and reliable operation. Attached Figure Description

[0018] Figure 1 The diagram shown is a schematic of the pump-driven flushing system for the smart toilet tank in this embodiment, at the initial water level.

[0019] Figure 2 As shown Figure 1 A cross-sectional view of the structure shown;

[0020] Figure 3 The diagram shown is a schematic of the pump-driven flushing system for the smart toilet tank in the embodiment, with the first float driving the switching element to swing so that the trigger part is in the second position.

[0021] Figure 4 As shown Figure 3 A cross-sectional view of the structure shown;

[0022] Figure 5 The diagram shown is a schematic of the pump-driven flushing system for the smart toilet tank in the embodiment, where the second float drives the switching element to swing and the trigger part switches back to the first position.

[0023] Figure 6 As shown Figure 5 A cross-sectional view of the structure shown. Detailed Implementation

[0024] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0025] In the description of this invention, terms such as "upper," "lower," "left," "right," "front," and "rear," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0026] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0027] Example 1

[0028] Reference Figures 1 to 6 As shown in the figure, this embodiment provides a pump-driven flushing system for a smart toilet tank, including a water pump 10, a pipe assembly, and a float assembly installed in the tank. The pipe assembly has an inlet pipe 11 and a first outlet pipe 12 and a second outlet pipe 13 respectively connected to the inlet pipe 11. The output end of the water pump 10 is connected to the inlet pipe 11. In this embodiment, the inlet pipe 11 is a T-junction pipe, the output end of the water pump 10 is connected to the inlet of the inlet pipe 11, and the first outlet pipe 12 and the second outlet pipe 13 are respectively connected to the first outlet 111 and the second outlet 112 of the inlet pipe 11. The first water outlet pipe 12 is equipped with a switch valve 20, which has a drive part 1 that drives it to open or close the first water outlet pipe 12. The second water outlet pipe 13 is equipped with a pressure relief valve 30. When the switch valve 20 opens the first water outlet pipe, water flows out of the first water outlet pipe 12 and the pressure relief valve 30 remains closed. When the switch valve 20 closes the first water outlet pipe, the first water outlet pipe 12 is cut off, and the pressure relief valve 30 is opened under water pressure, and water flows out of the second water outlet pipe 13.

[0029] In this embodiment, the switching valve 20 is a valve body with a back pressure chamber 201, including a valve housing 21 and a sealing diaphragm assembly 22. The valve housing 21 and the sealing diaphragm assembly 22 are connected to form the back pressure chamber 201. The sealing diaphragm assembly 22 corresponds to the first outlet 111 of the water inlet pipe 11. The valve housing 21 has a drain port 23 that communicates with the back pressure chamber 201. The drain port 23 serves as the driving part 1 of the switching valve 20. When the drain port 23 is blocked, the water inlet pipe... Water in the inlet pipe 11 enters the back pressure chamber 201 from the sealing membrane assembly 22, thereby driving the sealing membrane assembly 22 to move toward the first outlet 111 until the first outlet 111 is blocked. At this time, the first water outlet pipe 12 is cut off. When the drain port 23 is opened, the water in the back pressure chamber 201 is discharged from the drain port 23, the water pressure in the back pressure chamber 201 decreases, and under the action of the water pressure in the inlet pipe 11, the sealing membrane assembly 22 is driven to open the first outlet 111, so that the first water outlet pipe 12 is opened.

[0030] The float assembly includes a switching component 43, a first float 41, and a second float 42. The switching component 43 is provided with a trigger part 2 corresponding to the drive part 1 of the switching valve 20. The trigger part 2 has two engagement positions: contacting the drive part 1 and disengaging from the drive part 1. The two engagement positions represent the opening and closing of the switching valve 20, respectively. In this embodiment, when the trigger part 2 contacts the drive part 1, the trigger part 2 blocks the drain outlet 23, and the switching valve 20 is in the closed state; when the trigger part 2 disengages from the drive part 1, the trigger part 2 disengages from the drain outlet 23, and the switching valve 20 is in the open state.

[0031] The first position is defined as the engagement position of the trigger unit 2 and the drive unit 1 at the initial water level (i.e., when the water tank is at its highest water level), and the other engagement position is defined as the second position. In this embodiment, the switch valve 20 is in the open state at the first position and in the closed state at the second position.

[0032] The first float 41 is connected to the switching element 43, and the second float 42 forms a delayed linkage with the switching element 43. The drop in water level in the tank causes the first float 41 to drive the switching element 43 to move before the second float 42, thus switching the trigger part 2 from the first position to the second position. Furthermore, when the second float 42 and the switching element 43 are linked, the second float 42 drives the switching element 43 to move in the opposite direction, thus switching the trigger part from the second position to the first position. Specifically, in this embodiment, the switching element 43 moves by oscillation; however, in other embodiments, the switching element 43 may also move by translation or other actions.

[0033] When applied to a toilet tank, this embodiment also provides an intelligent toilet tank, including a tank and a flushing system. The flushing system is the pump-driven flushing system for the intelligent toilet tank described above. The first water outlet pipe 12 is used to connect to the upper flushing channel of the toilet, and the second water outlet pipe 13 is used to connect to the lower flushing channel of the toilet.

[0034] At the initial water level, the switching element 43 is fixed under the action of the first float 12, causing the trigger part 2 to separate from the drain port 23 of the switch valve 20, and the switch valve 20 is in the open state; during flushing, the water pump 10 draws water from the water tank and flows into the inlet pipe 11. Since the switch valve 20 is in the open state, water flows directly out from the first outlet pipe 12, while the pressure relief valve 30 of the second outlet pipe 13 remains closed. Figure 1 and Figure 2As shown; the water flowing from the first outlet pipe 12 performs a flushing operation on the toilet (i.e., brush flushing); as the water level drops, the first float 41 descends, causing the switching element 43 to swing clockwise until the trigger 2 contacts and blocks the drain outlet 23; at this time, the switch valve 20 closes the first outlet pipe 12, and water cannot flow out from the first outlet pipe 12. The water pressure in the inlet pipe 11 increases, thereby opening the pressure relief valve 30. Afterwards, water flows out from the second outlet pipe 13, as... Figure 3 and Figure 4 As shown, the toilet is flushed. When the water level continues to drop, the second float 42 and the switching element 43 are linked. The second float 42 drives the switching element 43 to swing in the opposite direction (i.e., counterclockwise) as the water level drops, causing the trigger 2 to switch from the second position to the first position. That is, the trigger 2 separates from the drain outlet 23 again, the switch valve 20 is reopened, and water flows out from the first outlet pipe 12 again, switching the toilet to flushing (i.e., brush flushing) operation. The pressure relief valve 30 closes again; until the entire flushing process is completed.

[0035] The solution in this embodiment allows the toilet to switch between top flush and bottom flush twice: first from top flush to bottom flush, and then back from bottom flush to top flush. The switching motion of the switching component 43 is unaffected by the water pressure in the inlet pipe 11; it features a simple structure, stable switching, and reliable operation.

[0036] Specifically, in this embodiment, the pressure relief valve 30 adopts an existing structure, including a spring 32 and a seal 31. The spring 32 applies elastic force to the seal 31 to block the second outlet 112 of the water inlet pipe 11. When the water pressure in the water inlet pipe 11 is greater than the elastic force applied by the spring 32, the seal 31 is opened, thereby opening the second outlet pipe 13. Of course, other pressure relief valve structures can also be used in other embodiments.

[0037] Specifically, in this embodiment, the trigger part 2 of the switching component 43 is a sealing plane 433 corresponding to the drain outlet 23. The drain outlet 23 is sealed by the sealing plane 433 being attached to the drain outlet 23; the structure is simple. Of course, in other embodiments, the trigger part 2 can also be a plug or the like, provided on the switching component 43, as long as it can seal the drain outlet 23.

[0038] Specifically, the switching element 43 is a swing lever with a first arm 431 and a second arm 432. The fulcrum of the swing lever is directly hinged to the valve housing 21 of the switching valve 20. The first float 41 is connected to the first arm 431, and the second float 42 forms a delayed linkage with the second arm 432; when the second float 42 drives the switching element 43 to swing in the opposite direction, the first float 41 is tilted up. This swing lever structure allows the first float 41 and the second float 42 to be positioned on different sides without interfering with each other. Furthermore, the length of the second arm 432 is greater than that of the first arm 431, making the torque of the second float 42 greater than that of the first float 41, thus reducing the weight of the second float 42.

[0039] Furthermore, in this embodiment, the first float 41 and the first arm 431 of the switching component 43 are integrally connected, that is, the first float 41 and the switching component 43 are integrally formed, which is convenient for manufacturing. Of course, in other embodiments, the first float 41 and the switching component 43 can also be separate structures, which are assembled and connected by assembly. The first arm 431 of the first float 41 and the switching component 43 can also be movable, such as hinged or connected by other structures (such as rigid or flexible connectors, etc.), as long as the downward movement of the first float 41 can drive the switching component 43 to move.

[0040] The second float 42 is provided with an upwardly extending hook 421. The second arm 432 of the switching element 43 is located below the hook 421. When the second float 42 moves down to engage with the second arm 432, the hook 421 hooks onto the second arm 432 of the switching element 43. In this way, the delayed engagement setting between the second float 42 and the switching element 43 can be effectively achieved. Simultaneously, the height of the hook 421 can be adjusted to adjust the engagement timing between the second float 42 and the switching element 43. For example, if the height of the hook 421 is increased, the second float 42 needs to move down to a lower position to engage with the switching element 43, resulting in a later switch to the top flush. Conversely, lowering the height of the hook 421 will result in an earlier switch to the top flush, facilitating adjustments and modifications.

[0041] Since the second float 42 is not directly fixed or limited to the switching component 43, to prevent the second float 42 from shifting position, this embodiment designs the second float 42 to be vertically guided, meaning the second float 42 can only move vertically and cannot shift laterally. Specifically, the inlet pipe 11 is vertically positioned and is a rigid, vertically oriented pipe. The second float 42 forms a guiding fit with the inlet pipe 11, meaning the second float 42 has a guide hole that engages with the inlet pipe 11. This satisfies the guiding function of the second float 42 and also makes the flushing system a unified structure, facilitating pre-assembly before placement in the water tank and making operation more convenient. Alternatively, in other embodiments, the inner wall of the water tank can have a vertical guide channel, and the second float can be assembled within this channel, also achieving a vertically guided configuration for the second float.

[0042] Example 2

[0043] This embodiment provides a pump-driven flushing system for a smart toilet tank, which has a structure largely the same as the pump-driven flushing system for a smart toilet tank provided in Embodiment 1. The difference lies in that, in this embodiment, when the trigger part 2 and the drive part 1 are in the first position, the switch valve 20 is in the closed state; when the trigger part 2 and the drive part 1 are in the second position, the switch valve 20 is in the open state. That is, in the first position, the trigger part 2 of the switching member 43 blocks the drain outlet 23, and in the second position, the trigger part 2 disengages from the drain outlet 23.

[0044] When applied to a smart toilet tank, the first outlet pipe 12 connects to the toilet's down-flush channel, and the second outlet pipe 13 connects to the toilet's up-flush channel. Upon flushing, because the first outlet pipe 12 is blocked, water overflows from the second outlet pipe 13 through the pressure relief valve 30, performing an up-flush operation. As the water level drops, the descent of the first float 41 causes the switching element 43 to swing, switching the trigger 2 to the second position. The first outlet pipe 12 is then opened, and water flows out, performing a down-flush operation. Afterward, the second float 42, in conjunction with the switching element 43, causes the switching element 43 to swing in the opposite direction, switching the trigger 2 back to the first position, and the toilet switches back to up-flush operation until completion.

[0045] Example 3

[0046] This embodiment provides a pump-driven flushing system for a smart toilet tank, which has a structure largely the same as the pump-driven flushing system for a smart toilet tank provided in Embodiment 1 or Embodiment 2. The difference lies in that: in this embodiment, the switching valve 20 adopts a push-button type switching valve as in the prior art. The driving part of the switching valve 20 is a push-button head. When the trigger part 2 contacts and presses the push-button head, the switching valve 20 is in the open state; when the trigger part 2 disengages from the push-button head, the push-button head resets and is in the closed state. That is, when the switching member 43 swings to the point where the trigger part 2 presses the push-button head, the switching valve 20 is opened; when the switching member 43 swings to the point where the trigger part 2 disengages from the push-button head, the switching valve 20 is closed. Using a push-button type switching valve to replace the switching valve with a back pressure chamber can also achieve the same water output effect.

[0047] The above discloses a preferred embodiment for implementing this application. However, in practical applications, the implementation is not limited to this. For example, the switching valve 20 can also use other valve bodies that can be driven to open and close by contact triggering, as long as the following condition is met: the movement of the switching member 43 causes the trigger part 2 to move closer to or further away from the drive part 1 of the switching valve 20, thereby controlling the opening or closing of the switching valve 20. The pressure relief valve 30 can also use other types of valve bodies. Furthermore, in practical applications, such as in Embodiment 1, the first water outlet pipe 12 can be used to connect to the toilet's lower flushing channel, and the second water outlet pipe 13 can be used to connect to the toilet's upper flushing channel, etc.

[0048] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.

Claims

1. A pump-driven flushing system for a smart toilet tank, comprising a water pump, a pipe assembly, and a float assembly assembled within the tank, wherein the pipe assembly has an inlet pipe and a first outlet pipe and a second outlet pipe respectively connected to the inlet pipe; the output end of the water pump is connected to the inlet pipe; characterized in that: The first outlet pipe is equipped with a switch valve, which has a drive unit that drives it to open or close the first outlet pipe. The second outlet pipe is equipped with a pressure relief valve. The float assembly includes a switching component, a first float, and a second float. The switching component is equipped with a trigger part corresponding to the drive unit of the switch valve. The trigger part has two engagement positions: contacting the drive unit and disengaging from the drive unit. The engagement position of the trigger part and the drive unit at the initial water level is defined as the first position, and the other engagement position is defined as the second position. The first float is connected to the switching component, and the second float forms a delayed linkage with the switching component; the drop in water level in the water tank causes the first float to drive the switching component to move before the second float, thereby switching the trigger part from the first position to the second position, and when the second float forms a linkage with the switching component, the second float drives the switching component to move in the opposite direction, thereby switching the trigger part from the second position to the first position.

2. The pump-driven flushing system for an intelligent toilet tank according to claim 1, characterized in that: When the trigger part and the drive part are in the first position, the switch valve is in the open state; when the trigger part and the drive part are in the second position, the switch valve is in the closed state.

3. The pump-driven flushing system for an intelligent toilet tank according to claim 2, characterized in that: The first outlet pipe is connected to the first outlet of the inlet pipe via a switching valve. The switching valve is a valve body with a back pressure chamber, including a valve shell and a sealing diaphragm assembly. The valve shell and the sealing diaphragm assembly are connected to form the back pressure chamber. The sealing diaphragm assembly corresponds to the first outlet of the inlet pipe. The valve shell has a drain port that communicates with the back pressure chamber. The drain port serves as the driving part of the switching valve. In the first position, the trigger part disengages from the drain port, causing the switching valve to be in the state of opening the first outlet. In the second position, the trigger part blocks the drain port, causing the switching valve to be in the state of closing the outlet.

4. The pump-driven flushing system for an intelligent toilet tank according to claim 3, characterized in that: The trigger part of the switching component is the sealing plane corresponding to the drain outlet.

5. The pump-driven flushing system for an intelligent toilet tank according to any one of claims 1 to 4, characterized in that: The switching component is a switching lever with a first arm and a second arm. The first float is connected to the first arm, and the second float and the second arm form a delayed linkage.

6. The pump-driven flushing system for a smart toilet tank according to claim 5, characterized in that: The second float is provided with an upwardly extending hook, and the second arm of the switching component is located below the hook. When the second float moves down to be linked with the switching component, the hook is hooked onto the second arm of the switching component.

7. The pump-driven flushing system for an intelligent toilet tank according to claim 1, characterized in that: The second pontoon is vertically oriented.

8. The pump-driven flushing system for a smart toilet tank according to claim 7, characterized in that: The inlet pipe of the pipe assembly is a vertically arranged rigid pipe, and the second float forms a guiding fit with the inlet pipe; or, the inner wall of the water tank is provided with a vertical guide channel, and the second float is assembled in the vertical guide channel.

9. The pump-driven flushing system for a smart toilet tank according to claim 1 or 2, characterized in that: The switching valve is a push-button type switching valve, and the driving part of the switching valve is a push-button head. When the trigger part contacts and presses the push-button head, the switching valve is in the open state; when the trigger part disengages from the push-button head, the push-button head is reset and in the closed state.

10. A smart toilet tank, comprising a tank and a flushing system, characterized in that: The flushing system is a pump-driven flushing system for a smart toilet tank as described in any one of claims 1-9, wherein one of the first and second water outlet pipes is used to connect to the upper flushing channel of the toilet, and the other is used to connect to the lower flushing channel of the toilet.

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