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

Abstract

The drainage 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 first switch valve, and the second water outlet pipe is provided with a second switch valve; the buoy assembly comprises a switching piece, a first buoy and a second buoy, the first buoy is connected with the switching piece, and the second buoy and the switching piece form delay linkage; the switching piece is driven to perform reciprocating switching along with the decline of the water level, so that the first water outlet pipe and the second water outlet pipe perform reciprocating switching water outlet.

Description

Technical Field

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

[0002] Toilets are one of the most common bathroom fixtures. Through years of development and improvement, they have acquired many user-friendly functions, greatly facilitating the needs of daily life. Traditional toilets use mechanical push-button drain valves for drainage. With the advent of smart toilets, using a water pump to drive the drain valve has become a viable solution.

[0003] Toilets have two flushing modes: top flush (i.e., flushing from the brush ring) and bottom flush. Traditional toilets first flush from the top, then switch to bottom flush, and replenish the water seal directly through the bottom flush. Of course, there are also existing structures that can switch back to top flush for replenishment, such as the toilet water circuit switching mechanism and toilet disclosed in CN210086393U; however, this solution uses a rotating switching component, with water continuously pressurizing the switching component, making the switching process difficult. Utility Model Content

[0004] Therefore, this utility model provides a pump-driven drainage system for a smart toilet tank and a smart toilet tank, so as to achieve the switching between two flushing modes in another way.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0006] A pump-driven drainage system for a smart toilet tank includes a water pump, a pipe assembly, and a float assembly installed 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 first switching valve, and the second outlet pipe is equipped with a second switching valve. Both the first and second switching valves have a drive unit for controlling opening or closing. The float assembly includes a switching element, a first float, and a second float. The first float is connected to the switching element, and the second float is linked to the switching element with a delayed action. A drop in the water level in the tank causes the first float to drive the switching element to move in a first direction before the second float. When the second float is linked to the switching element, the second float drives the switching element to move in the opposite second direction. The switching element switches back and forth between the first and second directions to alternately trigger the drive units of the first and second switching valves, so that the first and second outlet pipes open alternately.

[0007] Furthermore, the first switching valve and / or the second switching valve is a valve body with a back pressure chamber, including a valve housing and a sealing diaphragm assembly. The valve housing and the sealing diaphragm assembly are connected to form the back pressure chamber. The sealing diaphragm assembly corresponds to the outlet of the water inlet pipe. The valve housing has a drain port that communicates with the back pressure chamber. The drain port is the drive unit. The switching element controls the opening and closing of the first switching valve or the second switching valve by blocking or opening the drain port.

[0008] 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.

[0009] Furthermore, the first and second switching valves are disposed on the first side of the inlet pipe, the first arm of the switching member extends toward the first side of the inlet pipe and is provided with a first trigger part corresponding to the drive part of the first switching valve, the second arm of the switching member extends toward the second side of the inlet pipe to cooperate with the second float; the switching member is also provided with a third arm, and the third arm is provided with a second trigger part corresponding to the drive part of the second switching valve.

[0010] 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.

[0011] Furthermore, the second pontoon is vertically oriented.

[0012] Furthermore, the inlet pipe of the pipe assembly is a vertically installed rigid pipe, and the second float forms a guiding fit with the inlet pipe.

[0013] Furthermore, 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 first switching valve and / or the second switching valve are push-button switching valves, the driving part is a push-button head, and when the switching element contacts and presses the push-button head, the first switching valve or the second switching valve is in the open state; when the switching element disengages from the push-button head, the push-button head is reset, and the first switching valve or the second switching valve is in the closed state.

[0015] A smart toilet tank includes a tank and a drainage system, wherein the drainage system is a pump-driven drainage system for the smart toilet tank described above, and 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.

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

[0017] By installing a first switching valve in the first outlet pipe and a second switching valve in the second outlet pipe, during drainage, as the water level drops, the first float drives the switching element to move in the first direction before the second float, performing the first drainage switch. Then, when the second float and the switching element are linked, the second float drives the switching element to move in the opposite second direction, performing the second drainage switch. In this way, the first and second outlet pipes can switch back and forth to drain water. When applied to a toilet, it can effectively achieve the sequential switching of top flush - bottom flush - top flush. It has the characteristics of simple structure, stable switching, and reliable operation. Attached Figure Description

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

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

[0020] Figure 3 As shown Figure 2 Enlarged view of region A in the middle;

[0021] Figure 4 As shown Figure 2 Enlarged view of region B in the middle;

[0022] Figure 5 The diagram shown is a schematic of the pump-driven drainage system for the smart toilet tank in Embodiment 1 when the first float drives the switching element to swing to the first water outlet.

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

[0024] Figure 7 As shown Figure 6 Enlarged view of region C in the middle;

[0025] Figure 8 As shown Figure 6 Enlarged schematic diagram of region D in the middle;

[0026] Figure 9 The diagram shown is a schematic of the pump-driven drainage system for the smart toilet tank in Embodiment 1, when the second float drives the switching element to swing and switch the water outlet for the second time.

[0027] Figure 10 As shown Figure 9 A cross-sectional view of the structure shown. Detailed Implementation

[0028] 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.

[0029] 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.

[0030] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0031] Example 1

[0032] Reference Figures 1 to 9 As shown in the figure, this embodiment provides a pump-driven drainage 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.

[0033] The first outlet pipe 12 is equipped with a first switching valve 20, and the second outlet pipe 13 is equipped with a second switching valve 30. Both the first switching valve 20 and the second switching valve 30 have a drive unit for controlling opening or closing. Specifically, in this embodiment, both the first switching valve 20 and the second switching valve 30 are valve bodies with a back pressure chamber, including a valve shell 1 and a sealing diaphragm assembly 3. The valve shell 1 and the sealing diaphragm assembly 3 are connected to form a back pressure chamber 2. The sealing diaphragm assembly 3 corresponds to the outlet of the inlet pipe, that is, the sealing diaphragm assembly 3 of the first switching valve 20 corresponds to the first outlet 111, and the sealing diaphragm assembly 3 of the second switching valve 30 corresponds to the second outlet 112. The valve shell 1 is provided with a drain port that communicates with the back pressure chamber 2. The drain port of the first switching valve 20 is defined as the first drain port 4, and the drain port of the second switching valve 30 is defined as the second drain port 5. The first drain port 4 is the drive unit of the first switching valve 20, and the second drain port 5 is the drive unit of the second switching valve 30. The opening and closing of the first switch valve 20 is controlled by blocking or opening the first drain port 4; the opening and closing of the second switch valve 30 is controlled by blocking or opening the second drain port 5.

[0034] Taking the first switching valve 20 as an example (the principle of the second switching valve 30 is the same) to explain its working principle, when the first drain port 4 of the first switching valve 20 is blocked, the water in the inlet pipe 11 enters the back pressure chamber 2 from the sealing diaphragm assembly 3 of the first switching valve 20, thereby driving the sealing diaphragm assembly 3 to move toward the first outlet 111 until the first outlet 111 is blocked. At this time, the first outlet pipe 12 is cut off. When the first drain port 4 of the first switching valve 20 is opened, the water in the back pressure chamber 2 is discharged from the first drain port 4, the water pressure in the back pressure chamber 2 decreases, and under the action of the water pressure in the inlet pipe 11, the sealing diaphragm assembly 3 is driven to open the first outlet 111, so that the first outlet pipe 12 is opened.

[0035] The float assembly includes a switching element 43, a first float 41, and a second float 42. 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 the water level in the tank causes the first float 41 to drive the switching element 43 to move in a first direction before the second float 42. When the second float 42 and the switching element 43 form a linkage, the second float 42 drives the switching element 43 to move in the opposite second direction. The switching element 43 switches back and forth between the first direction and the second direction to alternately trigger the driving part of the first switching valve 20 and the driving part of the second switching valve 30, so that the first outlet pipe 12 and the second outlet pipe 13 are opened alternately.

[0036] This embodiment also provides a smart toilet tank, including a tank and a drainage system. The drainage system is the pump-driven drainage system for the smart toilet tank described above. In the first outlet pipe 12 and the second outlet pipe 13, the first outlet pipe 12 is used to connect to the upper flushing channel of the toilet, and the second outlet pipe 13 is used to connect to the lower flushing channel of the toilet.

[0037] One possible operating condition is as follows: At the initial water level, the switching element 43 is held in place by the action of the first float 41, such as... Figures 1 to 4 As shown, at this position, the switching element 43 blocks the second drain hole 5 of the second switch valve 30 and opens the first drain hole 4 of the first switch valve 20. At this time, the first outlet pipe 12 is opened and the second outlet pipe 13 is closed. During drainage, the water pump 10 draws water from the water tank to the inlet pipe 11 and flows out from the first outlet pipe 12, thus rinsing the upper brush ring. As the water level drops, the first float 41 drives the switching element 43 to move in the first direction. At this time, as... Figures 5 to 8As shown, due to the change in position of the switching element 43, the switching element 43 opens the second drain hole 5 of the second switch valve 30 and blocks the first drain hole 4 of the first switch valve 20. The first outlet pipe 12 is cut off and the second outlet pipe 13 is opened. Water from the inlet pipe 11 flows out from the second outlet pipe 13, thus performing downward jet flushing and realizing the first outlet switching. 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 move in the opposite second direction as the water level drops, such as... Figures 9 to 10 As shown, the switching element 43 re-blocks the second drain hole 5 of the second switch valve 30 and opens the first drain hole 4 of the first switch valve 20. Water flows out again from the first outlet pipe 12, switching the toilet to top flush (i.e., brush flush) operation until the entire flushing process is completed. The final water replenishment to the water seal state is done by top flush. When applied to a toilet, it can effectively achieve the sequential switching of top flush - bottom flush - top flush; it features a simple structure, stable switching, and reliable operation.

[0038] Specifically, in this embodiment, the switching member 43 operates by swinging, meaning it is configured to rotate, specifically hinged to the first switching valve 20 or the second switching valve 30; the swinging motion enables reciprocating switching between the first switching valve 20 and the second switching valve 30. Of course, in other embodiments, the switching member 43 can also operate by translation or other similar movements.

[0039] Furthermore, the switching element 43 is a switching lever with a first arm 431 and a second arm 432. The fulcrum of the switching lever is directly hinged to the valve body 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 (i.e., switch in the second direction), the first float 41 is tilted up. This switching lever structure allows the first float 41 and the second float 42 to be positioned on different sides without interfering with each other. Moreover, 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.

[0040] The first switching valve 20 and the second switching valve 30 are disposed on the first side of the water inlet pipe, such as Figure 1As shown on the left side, the first arm 431 of the switching component 43 extends towards the first side of the inlet pipe 11 and is provided with a first trigger part 44 corresponding to the first drain port 4 of the first switching valve 20. Specifically, the first trigger part 44 is an abutting plane; the abutting plane abuts against the first drain port 4 of the first switching valve 20 to achieve sealing. The second arm 432 of the switching component 43 extends towards the second side (i.e., the right side) of the inlet pipe 11 to cooperate with the second float 42. The switching component 43 is also provided with a third arm 433, and the third arm 433 is provided with a second trigger part 45 corresponding to the second drain port 5 of the second switching valve 30. Specifically, the second trigger part 45 is a sealing block, such as a rubber block, fixed on the third arm 433. The sealing block seals the second drain port 5 of the second switching valve 30, resulting in a good sealing effect. The above-described structure of the switching component 43 achieves a simple and ingenious layout, making the operation more reliable.

[0041] 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.

[0042] 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.

[0043] 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 fits into the inlet pipe 11. This satisfies the guiding function of the second float 42 and also makes the drainage system a unified structure, facilitating pre-assembly before placement in the water tank and making operation more convenient. Of course, in other embodiments, the inner wall of the water tank can also have a vertical guide channel, with the second float 42 assembled within the vertical guide channel, thus achieving the vertical guiding configuration of the second float 42.

[0044] Example 2

[0045] This embodiment provides a pump-driven drainage system for a smart toilet tank, which has a structure largely the same as the pump-driven drainage system for a smart toilet tank provided in Embodiment 1. The difference lies in that, in this embodiment, based on the structure of Embodiment 1, when applied to a toilet, the first water outlet pipe 12 is used to connect to the toilet's down-flush channel; the second water outlet pipe 13 is used to connect to the toilet's up-flush channel. This allows for a sequential switching between down-flush and up-flush cycles.

[0046] Example 3

[0047] This embodiment provides a pump-driven drainage system for a smart toilet tank, which has a structure largely the same as the pump-driven drainage system for a smart toilet tank provided in Embodiment 1 or Embodiment 2. The difference lies in that: in this embodiment, both the first switching valve 20 and the second switching valve 30 are push-button type switching valves in the prior art. The driving part of the first switching valve 20 and the driving part of the second switching valve 30 are both push-button heads. When the switching member 43 contacts and presses the push-button head, the switching valve (i.e., the first switching valve 20 or the second switching valve 30) is in the open state; when the switching member 43 disengages from the push-button head, the push-button head resets and is in the closed state. 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.

[0048] The above discloses a preferred embodiment for implementing this application. However, in practical applications, it is not limited to this. For example, the switching valve (i.e., the first switching valve 20 or the second switching valve 30) can also be other valve bodies that can be driven to open and close by contact triggering. The first switching valve 20 and the second switching valve 30 can be of the same type or different types. As long as the following condition is met: the movement of the switching member 43 triggers the driving part of the switching valve, thereby controlling the corresponding switching valve to open or close.

[0049] 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 drainage 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 first switching valve, and the second outlet pipe is equipped with a second switching valve. Both the first and second switching valves have a drive unit for controlling opening or closing. The float assembly includes a switching element, a first float, and a second float. The first float is connected to the switching element, and the second float forms a delayed linkage with the switching element. The drop in the water level in the tank causes the first float to drive the switching element to move in a first direction before the second float. When the second float forms a linkage with the switching element, the second float drives the switching element to move in the opposite second direction. The switching element switches back and forth between the first and second directions to alternately trigger the drive units of the first and second switching valves, so that the first and second outlet pipes open alternately.

2. The pump-driven drainage system for a smart toilet tank according to claim 1, characterized in that: The first switching valve and / or the second switching valve are valve bodies with a back pressure chamber, including a valve housing and a sealing diaphragm assembly. The valve housing and the sealing diaphragm assembly are connected to form the back pressure chamber. The sealing diaphragm assembly corresponds to the outlet of the water inlet pipe. The valve housing has a drain port that communicates with the back pressure chamber. The drain port is the drive unit. The switching element controls the opening and closing of the first switching valve or the second switching valve by blocking or opening the drain port.

3. The pump-driven drainage system for a smart toilet tank according to claim 1, 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.

4. The pump-driven drainage system for a smart toilet tank according to claim 3, characterized in that: The first switching valve and the second switching valve are disposed on the first side of the water inlet pipe. The first arm of the switching member extends toward the first side of the water inlet pipe and is provided with a first trigger part corresponding to the drive part of the first switching valve. The second arm of the switching member extends toward the second side of the water inlet pipe to cooperate with the second float. The switching member is also provided with a third arm, and the third arm is provided with a second trigger part corresponding to the drive part of the second switching valve.

5. The pump-driven drainage system for a smart toilet tank according to claim 3, 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.

6. The pump-driven drainage system for a smart toilet tank according to claim 1, characterized in that: The second pontoon is vertically oriented.

7. The pump-driven drainage system for a smart toilet tank according to claim 6, characterized in that: The inlet pipe of the pipe assembly is a vertically installed rigid pipe, and the second float forms a guiding fit with the inlet pipe.

8. The pump-driven drainage system for a smart toilet tank according to claim 6, characterized in that: 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 drainage system for a smart toilet tank according to claim 1, characterized in that: The first and / or second switching valves are push-button type switching valves, and the driving part is a push-button head. When the switching element contacts and presses the push-button head, the first or second switching valve is in the open state; when the switching element disengages from the push-button head, the push-button head is reset, and the first or second switching valve is in the closed state.

10. A smart toilet tank, comprising a tank and a drainage system, characterized in that: The drainage system is a pump-driven drainage 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.

Images